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The 590-bed hospital, located at 2316 East Meyer Boulevard in Kansas City, Missouri, is one of the region’s leading acute-care hospitals and provides free parking to patients and visitors. The hospital offers a range of services to patients, including emergency care with a Level I Trauma Center, a certified Comprehensive Stroke Center and effective treatment for heart attack and sepsis. Other specialized programs include traumatic brain injury, TIA, Grossman Burn Center, Gastrointestinal (GI) Center of Excellence, oncology care in partnership with Sarah Cannon Cancer Institute, 24-hour obstetrics ER, Level III NICU, Transplant Institute, Center for the Relief of Pain, orthopedics/sports medicine and much more. In addition, patients can receive care for a wide range of medical specialties at the Brookside Campus and focused, compassionate mental health treatment at Research Psychiatric Center.
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The scientific core of Sechenov University is its Research Center (RC) which combines all the scientific departments of the University.
Institutes of Sechenov University:
– Institute of Medical Parasitology and Tropical Medicine – Institute of Public Health and Healthcare Management – Institute of Medical Sociology, Healthcare Economics and Medical Insurance – Institute of Pharmacy – Institute of Uronephrology and Reproductive Health
Institute of Medical Parasitology and Tropical Medicine
The Institute of Medical Parasitology and Tropical Medicine named after E. Martsinovskii is the educational base of the department of Tropical Medicine and parasitic diseases which founded as a part of the Faculty of Preventive Medicine.
The institute owns a large collection of agents of parasitic diseases and arthropod-carriers of diseases, rich illustrative material in the form of tables, slides, videos and CD-ROM drive, a library, which contains all of the major publications relating to the studied problems, and includes 80,000 names of the scientific literature for Parasitology, unique insectaries carriers of human diseases, collection agents, registered in the World health Organization.
The staff of the institute are deeply involved in carrying out the theme: “Improving the surveillance of parasitic diseases” and actively participate in the development of materials legislative prevention of parasitic diseases in Russia.
Objectives:
The main objective of the department is training of competent personnel for the Russian Federal Consumer Rights Protection and Human Health Control Service and health care facilities specializing in “Parasitology” with the use of modern: technologies, forms and methods of teaching, as well as the latest achievements in biological and medical science and practice.
The departments train postgraduates in the field of “parasitology” and prepares graduate students (full-time and part-time students) and competitors of scientific degrees of candidate and doctor of medical and biological sciences in the specialties of “parasitology” and “entomology”. Due to the degradation of the environment new training on carrying out sanitary parasitological studies of the environment (water utilities, etc.) were introduced.
Departments and divisions:
- Department of Scientific Medical Information
- Department of Medical protozoology
- Department of Medical Helminthology
- Department of development and pre-clinical study of antiparasitic medications
- Division of modern therapeutic methods of treatment of parasitic diseases
- Department of Medical Entomology
- Laboratory development of treatments for parasitic diseases
Institute of Public Health and Healthcare Management
The Research Institute of Public Health and Health Management was established in 2002.
Main goals:
- Development of modern technology
- Training of specialists with higher medical and pharmaceutical education, based on the achievements of biomedical research.
Main areas of research are:
- The policy and strategy for the formation of public healthcare
- The development and improvement of technologies for shaping public healthcare
- Strategy for healthcare Management
- Personnel Policy in healthcare
- Economic and resource provision of healthcare
- Standardization in healthcare
- Information technology in healthcare management
- Legal protection of public health and healthcare management
- International healthcare
Departments:
- Department of Medical prevention and health promotion
- Department of Public Health Policy
- Department for problems of public health
- Department of Standardization in Health Care
- Department of Health Management Strategies
- Laboratory of the development, implementation and certification of information technology
- Laboratory of labor efficiency in health care
- Laboratory of coordination of inter-institutional research on public health and health care management
- Laboratory of legislation in health care
- Department of Problems of health information
- Department of socially significant diseases
- Laboratory of clinical and laboratory diagnosis
Institute of Medical Sociology, Healthcare Economics and Medical Insurance
Established in 2011 the Institute of Sociology of medicine, health economics and health insurance consists of the managerial board and 6 scientific divisions: 5 departments (sociology of health and illness, sociology of health care management, historical and sociological analysis of medicine, health economics, management, economics and sociology of health insurance) and a laboratory of medical and sociological monitoring.
The Institute is headed by Professor A.V.Reshetnikov a member of the Academy of Medical Sciences, Dr. of Medical Sciences, Dr. of Sociological Sciences, a honored worker of health.
Main objectives:
- Coordination of research activities
- Improvement of the quality and quantity of medical and sociological and socio-economic research on fundamentally new directions in the sociology of medicine, health economics and health insurance.
- Training of health managers in areas of: sociology of medicine and health economics.
Main areas of research:
- Generating new knowledge about the basic laws governing the functioning and development of medicine as a social institution,
- The formation of valuable relationships among different segments of the population with healthcare institutions, illnesses and health care, medicine and public health organization,
- Development and implementation of social and economic measures to further improve health and health care organizations.
The research activities of the Institute are based on the principles of: unity and active interaction between the research and educational activities.
Institute of Pharmacy
The Research Institute of pharmacy was established in 2001, it carries out its activities in cooperation with the institutions, faculties and departments of the University and its clinics, performs with them collaborative research, and participates in the educational process at the University.
- Development of scientific foundations for organizing the functioning of pharmaceutical companies.
- Development of the basic principles of pharmaceutical research in establishing a manufacture of medicines.
- Research to develop innovative technologies for medicine production.
- Development of requirements for the creation and standardization of medical drugs based on nanotechnology.
- Research on the standardization of general pharmacopoeial analytical methods.
- Research on standardization of dosage forms.
- Research on the standardization of medicinal plants, herbal medicines, including homeopathic ones.
- Research on standardization of excipients.
- Development of scientific and methodological principles of pharmacoeconomic and pharmacoepidemiological studies.
- Pharmacoeconomic studies of drugs used for the treatment of of socially significant diseases.
The results of the research conducted by the staff at the Institute of Pharmacy is published in monographs, textbooks and the following magazines: “Pharmacy”, “New Pharmacy”, “Pharmaceutical Chemistry Journal”, “Bulletin of Voronezh State University,” “Pharmaceutical industry”, “Bulletin of the Scientific Center of Medical Products “,” Pharmacoeconomics “, etc.
The Institute of Pharmacy holds annual scientific conferences and scientific seminars on topical issues of technology, standardization, production and pharmacoeconomics of medicines, with the participation of students, researchers, companies specialized in the manufacture of medicines and the regulatory authorities.
Laboratories of the Institute of Pharmacy:
- Laboratory of Medicines Technologies
- Laboratory of Pharmacognosy
- Laboratory of Pharmacopoeias
- Laboratory of Pharmaceutical Chemistry
- Laboratory of Pharmacoeconomics
Institute of Uronephrology and Reproductive Health
The Institute explores the current issues of diagnosis, treatment and prevention of diseases of the urinary system, male fertility disorders, and sexual function. Its clinical departments a wide range of complex medical operations are performed routinely this includes: laparoscopic interventions on the kidney, a wide range of rare and technically complex reconstructive and plastic operations on the organs of the urinary system, percutaneous interventions, minimally invasive treatment of prostate cancer using focused ultrasound, destruction of small renal tumors with radiofrequency ablation and other modern techniques. Promising methods of 3-D modeling of the pathological process of kidney cancer, kidney stones and hydronephrosis were introduced in the institute, significantly improving the effectiveness of surgical treatment for these conditions by creating computer simulations of operations.
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Target Metabolome Profiling-Based Machine Learning as a Diagnostic Approach for Cardiovascular Diseases in Adults
Affiliations.
- 1 World-Class Research Center Digital Biodesign and Personalized Healthcare, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia.
- 2 Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, I.M. Sechenov First Moscow Medical University, 119435 Moscow, Russia.
- 3 Hospital Therapy N°1 Department of the N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow Medical University, 119992 Moscow, Russia.
- 4 Department of Industrial Pharmacy, Institute of Vocational Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia.
- 5 Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1206 Geneva, Switzerland.
- PMID: 36557222
- PMCID: PMC9781191
- DOI: 10.3390/metabo12121185
Metabolomics is a promising technology for the application of translational medicine to cardiovascular risk. Here, we applied a liquid chromatography/tandem mass spectrometry approach to explore the associations between plasma concentrations of amino acids, methylarginines, acylcarnitines, and tryptophan catabolism metabolites and cardiometabolic risk factors in patients diagnosed with arterial hypertension (HTA) (n = 61), coronary artery disease (CAD) (n = 48), and non-cardiovascular disease (CVD) individuals (n = 27). In total, almost all significantly different acylcarnitines, amino acids, methylarginines, and intermediates of the kynurenic and indolic tryptophan conversion pathways presented increased (p < 0.05) in concentration levels during the progression of CVD, indicating an association of inflammation, mitochondrial imbalance, and oxidative stress with early stages of CVD. Additionally, the random forest algorithm was found to have the highest prediction power in multiclass and binary classification patients with CAD, HTA, and non-CVD individuals and globally between CVD and non-CVD individuals (accuracy equal to 0.80 and 0.91, respectively). Thus, the present study provided a complex approach for the risk stratification of patients with CAD, patients with HTA, and non-CVD individuals using targeted metabolomics profiling.
Keywords: acylcarnitines; amino acids; cardiovascular disorders; coronary heart disease; hypertension; machine learning; metabolites; methylarginines; translational medicine; tryptophan catabolism.
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Conflict of interest statement
The authors have no conflict of interest to declare.
Heatmap correlation matrices between plasma…
Heatmap correlation matrices between plasma metabolites and cardiometabolic risk factors. ( a )…
Error matrix of the random…
Error matrix of the random forest multiclass classifier.
( a ). Comparison of…
( a ). Comparison of AUCROCs for the applied algorithms. Random forest showed…
The proposed scheme of the…
The proposed scheme of the significantly altered metabolites related to tryptophan conversion in…
The proposed scheme of the identified significant acylcarnitines.
The proposed scheme of the identified significant amino acids associated with the TCA…
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Evgenii Kegeles
Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia
Alexander N Mitin
National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia
Olga Mityaeva
Oksana e musatova.
Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
Anna E Panova
National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia
Mikhail V Pashenkov
Iuliia o peshkova.
National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Almaqdad Alsalloum
Walaa asaad, anna s budikhina, alexander s deryabin, inna v dolzhikova.
Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, Russia
Ioanna N Filimonova
Alexandra n gracheva, oxana i ivanova.
A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
Anastasia Kizilova
Viktoria v komogorova, anastasia komova.
Research Institute of Personalized Medicine, National Center for Personalized Medicine of Endocrine Diseases, National Medical Research Center for Endocrinology, Moscow, Russia
Natalia I Kompantseva
Ekaterina kucheryavykh.
Government of Moscow, Moscow, Russia
Denis А Lagutkin
Yakov a lomakin, alexandra v maleeva, elena v maryukhnich, afraa mohammad, vladimir v murugin, nina e murugina, anna navoikova, margarita f nikonova, leyla a ovchinnikova, yana panarina, natalia v pinegina, daria m potashnikova, elizaveta v romanova, aleena a saidova, anastasia g samoilova, yana serdyuk, naina t shakirova, nina i sharova, saveliy a sheetikov, anastasia f shemetova, liudmila v shevkova, alexander v shpektor, anna trufanova, anna v tvorogova, valeria m ukrainskaya, anatoliy s vinokurov, daria a vorobyeva, ksenia v zornikova, grigory a efimov, musa r khaitov.
Pirogov Russian National Research Medical University, Moscow, Russia
Ilya A Kofiadi
Alexey a komissarov, denis y logunov, nelli b naigovzina, yury p rubtsov, irina a vasilyeva, pavel volchkov, elena vasilieva, associated data.
In a prospective study involving 5340 individuals, humoral and cellular responses revealed magnitude-dependent protection from COVID-19. Antibodies alone significantly decreased infection rates; isolated cellular response provided an intermediate level of protection. The lowest COVID-19 incidence was in the double-positive group.
During the ongoing coronavirus disease 2019 (COVID-19) pandemic, many individuals were infected with and have cleared the virus, developing virus-specific antibodies and effector/memory T cells. An important unanswered question is what levels of T-cell and antibody responses are sufficient to protect from the infection.
In 5340 Moscow residents, we evaluated anti–severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin M (IgM)/immunoglobulin G (IgG) titers and frequencies of the T cells specific to the membrane, nucleocapsid, and spike proteins of SARS-CoV-2, using interferon gamma (IFN-γ) enzyme-linked immunosorbent spot (ELISpot) assay. Additionally, we evaluated the fractions of virus-specific CD4 + and CD8 + T cells using intracellular staining of IFN-γ and interleukin 2 followed by flow cytometry. We analyzed the COVID-19 rates as a function of the assessed antibody and T-cell responses, using the Kaplan–Meier estimator method, for up to 300 days postinclusion.
We showed that T-cell and antibody responses are closely interconnected and are commonly induced concurrently. Magnitudes of both responses inversely correlated with infection probability. Individuals positive for both responses demonstrated the highest levels of protectivity against the SARS-CoV-2 infection. A comparable level of protection was found in individuals with antibody response only, whereas the T-cell response by itself granted only intermediate protection.
Conclusions
We found that the contribution of the virus-specific antibodies to protection against SARS-CoV-2 infection is more pronounced than that of the T cells. The data on the virus-specific IgG titers may be instructive for making decisions in personalized healthcare and public anti–COVID-19 policies.
Clinical Trials Registration. NCT04898140.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was identified as a causative agent of a new coronavirus disease 2019 (COVID-19). Individuals who have cleared the virus or who have been vaccinated develop an adaptive immune response including virus-specific T cells and antibodies [ 1–3 ], which have been shown to protect from reinfection [ 4–8 ]. However, the antibody and T-cell response levels vary considerably from person to person and substantially decrease over time [ 9 , 10 ]. These facts raise an important question: What levels of T-cell response and immunoglobulin G (IgG) titers are sufficient to protect from the infection? The definitive answer requires a population-level study of the immune response to SARS-CoV-2 followed by the tracing of infection rates.
Here, we report on a prospective study based on evaluation of the virus-specific immunoglobulin levels and virus-specific T cells in a cohort of 5340 Moscow residents. Specifically, we evaluated the anti-SARS-CoV-2 immunoglobulin M (IgM)/IgG titers and the frequencies of the T cells specific to membrane (M), nucleocapsid (N), and spike (S) proteins of SARS-CoV-2, using interferon gamma (IFN-γ) enzyme-linked immunosorbent spot (ELISpot) assay. Furthermore, we assessed the fractions of the virus-specific IFN-γ– and interleukin 2 (IL-2)–producing CD4 + and CD8 + T cells using flow cytometry. Finally, we monitored the participants for up to 300 days and analyzed the postinclusion COVID-19 rates as a function of the antibody and T-cell response levels.
This study was approved by the Moscow City Ethics Committee and performed according to the Helsinki Declaration. All participants provided written informed consent. The study was registered at ClinicalTrials.gov (identifier: NCT04898140). Individuals enrolled in the study were Moscow residents >18 years old who voluntarily visited Moscow city clinics for routine testing for COVID-19 antibodies and agreed to participate. No specific inclusion or exclusion criteria were applied. The Moscow State COVID-19 registry was used to extract information about participants’ vaccination status and previous polymerase chain reaction (PCR)–confirmed COVID-19.
Peripheral blood was collected into two 8-mL Vacutainer Cell Preparation Tube tubes with sodium citrate (BD). Peripheral blood mononuclear cells (PBMCs) were isolated according to the manufacturer’s protocol within 2 hours after venipuncture (for details, see Supplementary Material 1 ). For serum isolation, peripheral blood was collected into S-Monovette 7.5-mL Z tubes (Sarstedt, Germany).
SARS-CoV-2–specific antibodies were evaluated using an automated CL-series chemiluminescent immunoassay analyzer with compatible reagent kits (Mindray, China). The assay detects an integrated pool of antibodies specific to full-length N protein, as well as receptor-binding-domain fragment of the S protein (see Supplementary material ). According to the manufacturer, the assay units can be converted into the World Health Organization standard binding antibody units/mL by dividing by 1.32 (for details, see Supplementary Material 1 ). Virus-neutralizing activity of plasma was analyzed with a microneutralization assay using a SARS-CoV-2 strain (hCoV-19/Russia/Moscow_PMVL-1/2020) in a 96-well plate and a 50% tissue culture infective dose of 100 as described in [ 6 ], with plasma dilutions of 10, 20, 40, 80, 160, 320, 640, and 1280 times.
Flow cytometry was performed on freshly isolated PBMCs stimulated with a mixture of SARS-CoV-2 PepTivator S, S1, S+, N, and M peptide pools (1 μg/mL each, Miltenyi Biotec, Germany). After 14–16 hours of stimulation, cells were stained with a panel of antibodies against surface markers and cytokines and then analyzed with flow cytometry ( Supplementary Figure 1 ). Data were analyzed using FlowJo software (BD Biosciences) (for details, see Supplementary Material 1 ). IFN-γ ELISpot assay was performed on freshly isolated PBMCs using the IFN-γ Single-Color ELISPOT kit (CTL). For each donor, 5 wells were tested without replicates: a negative control well without stimulation, a positive control well nonspecifically stimulated with 10 µg/mL phytohemagglutinin, and 3 experimental wells stimulated with PepTivator peptide pools covering the M, N, or S protein of SARS-CoV-2. Spots were visualized and counted using an automated spot counter CTL ImmunoSpot Analyzer and ImmunoSpot software (CTL) (for details, see Supplementary Material 1 ). It should be noted that there were no replicates in our ELISpot protocol; undoubtedly, it represents a limitation of the study. However, we believe that the large number of samples analyzed allowed us to mitigate the variability of the method.
Statistical analysis was performed with the Python3 programming language with numpy , scipy , pandas , and lifelines packages (for details, see Supplementary Material 1 ). Serology positivity thresholds were set according to the assay manufacturer’s instructions at 10 AU/mL for IgG and 1 cutoff index for IgM, respectively. For IFN-γ ELISpot and flow cytometry assays, positivity criteria were developed individually (see Supplementary Material 2 ).
Cohort Characteristics
In total, 5340 individuals from the Moscow general population were included in the study. All of them were tested for SARS-CoV-2–specific IgG/IgM titers, while virus-specific T cells in peripheral blood were estimated for 156 participants using ELISpot, for 1640 participants using flow cytometry, and for 1629 participants using both assays ( Figure 1 A A ). The difference in these numbers resulted from cases in which the peripheral blood amount was not enough to perform both T-cell assays, or from which samples were excluded from the analysis because of failed controls. Cohort recruitment lasted from October to December 2020; the age and sex distribution of the participants is presented in Figure 1 B B . Accordingly, 854 participants (17%) with previously PCR-confirmed COVID-19 infection were included, 81 (2%) COVID-19 cases were diagnosed at the time of inclusion, and 496 (10%) COVID-19 cases were registered postinclusion ( Figure 1 C C ). The postinclusion observation continued until the end of August 2021; the distribution of all COVID-19 cases in time is presented in Figure 1 D D . The cohort recruitment took place before the onset of the public vaccination program in Moscow. However, among enrolled participants, there were 175 individuals who had participated in the Sputnik V vaccine clinical trial and thus had received either vaccine or placebo.
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Study overview and experimental cohort description. ( A ), Schematic study design. We tested volunteers for severe acute respiratory syndrome coronavirus 2–specific antibodies (blue circle) and virus-specific T cells using interferon-γ enzyme-linked immunosorbent spot (ELISpot) assay (pink circle) and flow cytometry with intracellular staining (green circle) (Figure was created using Biorender.com). ( B ), Age and sex distribution of volunteers included in the study. ( C ), Coronavirus disease 2019 (COVID-19) status of volunteers included in the study according to the Moscow State COVID-19 registry provided by the Moscow Department of Healthcare. ( D ), COVID-19 cases among study participants per week from April 2020 to August 2021.
Correlation Between Antibody and T-Cell Responses
At the time of inclusion, 1382 (26%) individuals were positive for SARS-CoV-2–specific IgM and 2455 (46%) for IgG ( Figure 2 A A and and2 2 B B and Supplementary Figure 2 ). By analyzing a subgroup of 854 participants with confirmed previous COVID-19, we found that IgM titers considerably decreased 60 days post–disease onset ( Figure 2 C C ), whereas IgG titers stayed relatively high and unaltered up to 270 days post–disease onset ( Figure 2 D D ). Among 180 randomly selected individuals, we detected a strong correlation between the virus-neutralizing activity (VNA) of plasma and integrated IgG titers, as well as S and N protein–specific antibodies ( Supplementary Material 3 and Supplementary Figure 3 ).
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Evaluation of coronavirus disease 2019 (COVID-19)–specific antibody immunity. ( A ), Percentages of patients positive for virus-specific immunoglobulin M (IgM) and immunoglobulin G (IgG). ( B ), Venn diagram showing the number of participants positive for severe acute respiratory syndrome coronavirus 2–specific IgG (green), IgM (red), and both antibody types (orange). ( C ) and ( D ), Time dependence of the IgM and IgG levels among a subgroup of 854 nonvaccinated participants who had previous polymerase chain reaction–confirmed coronavirus disease 2019 (COVID-19). Each dot represents a single patient. Time is counted from the date of disease onset according to the Moscow State COVID-19 registry to the day of inclusion in the study. Time interval presented in each boxplot is 30 days. Abbreviation: COI, cutoff index.
We analyzed the frequencies of the T cells specific to the M, N, and S proteins of SARS-CoV-2 in peripheral blood, using the IFN-γ ELISpot assay; we also analyzed the frequencies of IL-2– and IFN-γ–producing virus-specific CD4 + and CD8 + T cells, with flow cytometry. For this purpose, we used a stimulation protocol described elsewhere [ 2 , 11 , 12 ]. Both ELISpot and flow cytometry assays showed that approximately half of the individuals analyzed had a T-cell response against SARS-CoV-2 antigens, which was consistent with the level of the specific antibodies in the cohort ( Figure 3 A A and and3 3 B B ). Overall, 1145 (64.1%) individuals had SARS-CoV-2–specific T-cell responses to at least 1 of the SARS-CoV-2 proteins (M, N, or S), including 692 (38.8%) with T-cell responses to all 3 proteins ( Figure 3 C C ). Flow cytometry revealed that 2217 (67.8%) participants had SARS-CoV-2–specific CD4 + T cells expressing IL-2, IFN-γ, or both cytokines, with 1095 (33.5%) participants having all 3 cell populations ( Figure 3 D D ). All of the metrics of T-cell immunity appeared to be relatively stable up to 270 days after disease onset ( Figure 3 E E and and3 3 F F and Supplementary Figure 4 ).
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Evaluation of coronavirus disease 2019 (COVID-19)–specific T-cell immunity. Freshly isolated peripheral blood mononuclear cells (PBMCs) were stimulated with peptide pools covering severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) proteins, and cytokine responses were assessed with enzyme-linked immunosorbent spot (ELISpot) assay or flow cytometry. The percentages of patients exceeding the positivity threshold for M, N, and S proteins in the ELISpot assay ( A ) or exceeding the percentage of cells expressing both interleukin 2 (IL-2) and interferon gamma (IFN-γ), or either of these cytokines, in the flow cytometry assay ( B ) are shown. Venn diagrams showing relation in positivity between different SARS-CoV-2 proteins in the ELISpot assay ( C ) or between expression of different cytokines in response to activation with SARS-CoV-2 proteins in the flow cytometry assay ( D ). The time dependence of the spot-forming units (SFU) per 10 6 PBMC for S protein in the ELISpot assay is shown in ( E ) and that of the fraction of CD4 + T cells expressing IL-2 out of total CD4 + cells in the flow cytometry assay is shown in ( F ). Each dot represents a single participant. Time is counted from the date of disease onset according to the Moscow State COVID-19 registry to the day of inclusion in the study, and thus serology testing. Time interval presented in each boxplot is 30 days. The dashed line represents a positivity threshold for ELISpot. For flow cytometry, the positivity threshold was variable (see Supplementary Material 2 ).
We observed a strong correlation between the frequencies of SARS-CoV-2–specific T cells detected with ELISpot and those detected with flow cytometry; also, a strong correlation between IgG titers and T-cell frequencies was determined ( Supplementary Figure 5 ). This correlation was found in the cases of M, N, and S protein–specific T cells, as well as for different populations of CD4 + T cells.
Protectivity of Different Immune Responses Against SARS-CoV-2 Infection
To evaluate the effects of antibody and T-cell responses on susceptibility to SARS-CoV-2 infection, we analyzed the postinclusion COVID-19 rates as functions of the assessed parameters. To avoid possible bias, we excluded from the analysis 175 individuals who had participated in the Sputnik V clinical trial and 81 individuals who were already infected at the moment of blood collection. Vaccinated participants were withdrawn from the study on the day of vaccination. Since we have subjects who were excluded from the dataset during observation and have >2 groups in all comparisons, we employed the nonparametric Kaplan–Meier estimator method for initial exploration and the Cox proportional hazards (CPH) model for further quantitative assessment of observed effects. Accordingly, among the 3989 participants who were eligible for the postinclusion observation, 420 postinclusion COVID-19 cases were registered. For each of the immune parameters, participants were divided by the quantiles depending on the levels of their responses, and corresponding Kaplan-Meier curves for each quantile were analyzed and CPH models were built ( Supplementary Material 4 ).
For all the immune response metrics, we found an inverse correlation with the SARS-CoV-2 infection rates. Thus, at the end of the observation individuals with IgG titers <0.29 AU/mL (quantile [Q] 1) were characterized by a 22% chance of becoming infected ( Figure 4 A A ). For individuals in Q2 and Q3 (IgG titers 0.29–0.97 and 0.97–8.23 AU/mL, respectively), age-adjusted log-hazard ratios (HRs) compared with Q1 were significantly below zero: −0.3 (95% confidence interval [CI], −.5 to −.03) and −0.33 (95% CI, −.6 to −.1), respectively. Individuals representing Q4 and Q5 (IgG titers: 8.23–66.5 AU/mL and >66.5 AU/mL, respectively) had the lowest infection chances: log(HRs), −1.5 (95% CI, −1.9 to −1.2) and −2.4 (95% CI, −3 to −2), respectively. We found that Q4 and Q5, which demonstrated the highest protection, were at the same time characterized by the highest VNA ( Supplementary Figure 3 B ). Surprisingly, Q3, with infection chances in the intermediate range, also had VNA significantly higher than Q1, demonstrating an absence of protectivity. There was no difference in VNA between Q1 and Q2.
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Evaluation of the effects of antibody and T-cell immune responses on coronavirus disease 2019 (COVID-19) infection rates. The patients were split into 5 nearly equal groups by quantiles of immunoglobulin G (IgG) levels ( A , top) or by S protein–specific spot-forming units estimated from enzyme-linked immunosorbent spot (ELISpot) assay ( B , top) from quartile (Q) 1 to Q5. Additionally, participants were split into 4 groups ( C , top): positive only by antibodies (A + T − ), positive only by S protein–specific T cells estimated from ELISpot (A − T + ), double-positive (A + T + ), and double-negative (A − T − ). Corresponding Kaplan–Meier curves were generated for each group, and COVID-19 rates were analyzed. A – C (bottom), Age-adjusted Cox proportional hazard models were fitted (with age measured in decades for ease of representation) and hazard ratios in comparison with either Q1 or the A − T − group were calculated together with the model concordance index ( c -index). ✢, decades were used as units for age measurements. * p < 0.05; ** p < 0.01; *** p < 0.001; **** p < 0.0001. Abbreviations: CI, confidence interval; HR, hazard ratio; IgG, immunoglobulin G; PBMC, peripheral blood mononuclear cells; Q, quartile; SFU, spot-forming units.
An almost binary relationship was observed between infection chances and the frequencies of virus-specific T cells identified by ELISpot ( Figure 4 B B and Supplementary Figure 6 A–C ). For all of the SARS-CoV-2 proteins analyzed, individuals in Q4 and Q5 were characterized by the highest levels of protection against the infection, whereas Q1–Q3 were similar and demonstrated no considerable protection. For example, the maximal protection was achieved when the number of S protein–specific spot-forming units per 10 6 PBMCs exceeded 67. In contrast to ELISpot, the results of the T-cell response analysis using flow cytometry revealed a gradual relationship between the frequencies of T cells producing IFN-γ, IL-2, or both cytokines, and infection chances ( Supplementary Figure 6 D–H ). However, when CD4 + T cells expressing different cytokines were combined, the relationship with infection chances transformed into a binary one.
A similar strategy was employed to separate the effects of cellular and antibody responses on protection against SARS-CoV-2 infection. The participants were split into 4 groups: positive only by antibody response (A + T − ), positive only by any metric of the T-cell response (A − T + ), double-positive (A + T + ), and double-negative (A – T – ), according to the previously estimated positivity criteria ( Supplementary Material 2 ). Such analysis was performed for all metrics of the T-cell response, except for CD8 + T cells since it was impossible to develop a reliable positivity criterion. The group size depended on the T-cell immune response metric used; for example, for S protein–specific T cells ( Figure 4 C C ), the numbers of participants at the start of observation were 446, 113, 147, and 609 for A + T + , A + T − , A − T + , and A − T − , respectively. For all of the T-cell response metrics, the A − T − group had the highest infection chances, while the strongest protection was observed for A + T + and A + T − groups, the latter two groups being statistically indistinguishable ( Figure 4 C C and Supplementary Figure 7 ). For example, for S protein–specific T cells, age-adjusted log-HRs for all other groups compared with the A − T − group were significantly above zero: for A − T + : log(HR), −0.7 (95% CI, −1.3 to −.1); for A + T − : log(HR), −1.8 (95% CI, −2.8 to −.8); and for A + T + : log(HR), −2.6 (95% CI, −3.3 to −1.9). For all studied metrics, the A − T + group demonstrated an intermediate protection that was significantly higher than in the A − T − group, but was lower than in the A + T + and A + T − groups. In particular, the protection provided by the T cells in the absence of antibodies was observed when the response was estimated from the numbers of N and S protein–specific T cells with ELISpot ( Figure 4 C C and Supplementary Figure 7 A–C ). The trend for increased protection was observed for the CD4 + T cells producing IFN-γ, IL-2, both cytokines, and, especially, these populations combined ( Supplementary Figure 7 D–G ). It is noteworthy that individuals single-positive for N- and S protein–specific T cells, as well as for virus-specific CD4 + T cells, were characterized by higher IgG levels than individuals of the A – T – group, although the antibody levels were below the positivity cutoff value of 10 AU/mL ( Supplementary Figure 8 ).
With the progression of the COVID-19 epidemic, a growing number of individuals develop immune responses against SARS-CoV-2. Prospective studies in humans [ 13–15 ] and studies using primate models with SARS-CoV-2 rechallenge [ 16–18 ] have demonstrated that an acquired post–COVID-19 immune response provides protection from reinfection. The goal of our study was to evaluate what metrics of the antibody and T-cell immune responses against SARS-CoV-2 correlate with protection against infection in humans in the context of the COVID-19 epidemic in Moscow between October 2020 and August 2021.
As expected, we found a strong correlation between frequencies of SARS-CoV-2–specific T cells evaluated with ELISpot and with flow cytometry, since these methods detect cytokine expression in activated T cells [ 19 ]. IgG titers strongly correlated with the frequencies of SARS-CoV-2–specific T cells, confirming that antibody and cellular responses are closely interconnected and induced concurrently. This correlation existed even at IgG values below the seropositivity cutoff.
From April 2021 in Russia, the B.1.1 lineage of SARS-CoV-2 predominated [ 20 , 21 ], while from April to August the vast majority of SARS-CoV-2 variants detected belonged to the B.1.617 (Delta and derivatives) lineage [ 22 ]. However, we found that IgG titers and parameters of the T-cell response negatively correlated with infection probabilities regardless of the predominant virus variant. T-cell response was characterized by a binary relationship between response level and infection probabilities, as measured with ELISpot. This means that for all individuals with a frequency of SARS-CoV-2–specific T cells surpassing a particular threshold, protection against SARS-CoV-2 infection was the same. A different pattern was observed for IgG titers. We identified 3 groups of individuals characterized by different infection chances. Individuals with very low IgG titers were characterized by the highest infection chances, while high titers were associated with the lowest infection chances. Meanwhile, infection chances for individuals with intermediate IgG titers were also intermediate, notwithstanding the fact that these titers were below the seropositivity cutoff. Moreover, we found significant VNA among these individuals. Given the strong correlation between antibody and T-cell responses found in the study, the protection observed in these individuals might be T-cell dependent. We surmise that this group may consist of individuals who developed a COVID-19–specific response after previous asymptomatic infection [ 23 , 24 ], or after infection with either cross-reactive “common cold” coronaviruses [ 11 ] or other pathogens [ 25 , 26 ]. The low-level humoral response could nevertheless be indicative of successful formation of memory B cells, as it is known that SARS-CoV-2 induces the formation of durable B-cell memory [ 27–29 ].
Depending on estimated T-cell and antibody responses, we split the participants into 4 groups and analyzed the protection against the SARS-CoV-2 infection. Two groups were characterized by the highest protection: individuals positive for both types of responses and those with antibody response only. Apparently, these groups contain individuals with previous COVID-19 that had not been confirmed by PCR for some reasons. It is noteworthy that even though the reinfection rates in these groups were very small, few cases were still detected. Individuals with T-cell response alone demonstrated intermediate protection levels that nevertheless were higher than levels in individuals without either type of immunity. Statistically significant protection was observed for N and S protein–specific T-cell responses. Individuals single-positive for these cellular response metrics had higher IgG titers than individuals without either type of immunity, although the titers were below the positivity cutoff. Taken together, our results demonstrated that antibodies better correlated with protection against the SARS-CoV-2 infection, indicating that IgG evaluation is a more precise method for prediction of infection chances than virus-specific T cells. However, the most important role of T cells might be not in protection from the infection but rather in viral clearance and managing disease severity [ 30–35 ]. Moreover, rhesus macaque models [ 17 , 36 ] and recent human studies [ 37 , 38 ] have supported that T-cell protection becomes important as neutralizing antibodies decline.
Our study has several limitations. The cohort analyzed is likely to be nonrepresentative and includes only individuals who have visited outpatient clinics for COVID-19 antibody tests and who agreed to participate in the study. Some cases of COVID-19 infections, especially asymptomatic, were inevitably missed as they were not reported to the Moscow State COVID-19 registry, though we do not expect any nonrandom distribution of unreported cases between different groups. Additionally, our study was focused on the systemic immune responses detected in peripheral blood, while local concentrations of antibodies and tissue-resident T cells in the mucosa and respiratory system may differ from blood levels; this issue deserves thorough investigation.
In summary, our data suggest that serological testing is advantageous for the prediction of protection against SARS-CoV-2 infection. Our data on the specific IgG titers may be instructive for making decisions in personalized healthcare and for development of public anti–COVID-19 policies.
Supplementary Data
Supplementary materials are available at Clinical Infectious Diseases online. Consisting of data provided by the authors to benefit the reader, the posted materials are not copyedited and are the sole responsibility of the authors, so questions or comments should be addressed to the corresponding author.
Author contributions. G. A. E., I. A. K., A. A. K., M. R. K., D. Y. L., N. B. N., Y. P. R., A. V. S., I. A. V., P. V., and E. V. designed and coordinated the study. I. A. M. performed the statistical analysis and, together with E. K., A. N. M., O. M., O. E. M., A. E. P., M. V. P., and I. O. P., performed initial data interpretation. A. A., W. A., A. S. B., A. S. D., I. V. D., I. N. F., A. N. G., O. I. I., A. K., V. V. K., A. K., N. I. K., D. A. L., Y. A. L., A. V. M., E. V. M., A. M., V. V. M., N. E. M., A. N., M. F. N., L. A. O., N. V. P., D. M. P., E. V. R., A. A. S., N. S., A. G. S., Y. S., N. T. S., N. I. S., S. A. S., A. F. S., L. S., A. T., A. V. T., V. M. U., A. S. V., D. A. V., and K. V. Z. performed the experiments. E. K. and Y. P. provided the information from the Moscow State COVID-19 registry. Every author contributed to the initial draft of the manuscript and agreed on submission for publication. All authors reviewed the manuscript and approved the final version.
Acknowledgments. The authors thank Dr Leonid Margolis (Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland) and Professor Michael M. Lederman (Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, Ohio) for their valuable comments and suggestions during experimental design, discussion of the results, and manuscript preparation; and Dr Barry Alpher for assistance in editing and improving the English style of the manuscript. The authors also thank the Moscow Department of Healthcare for help in organization of the study.
Financial support. This study was supported by Moscow Department of Healthcare (DC number DZM-30-3, payments made to institution). T-cell response analysis using ELISpot was supported in part by the Ministry of Science and Higher Education of the Russian Federation (agreement number 075-15-2020-899, payments made to institution). T-cell response analysis using flow cytometry was supported in part by an A. I. Yevdokimov Moscow State University of Medicine and Dentistry grant (agreement number KNP-06/21, purchase and supply of study materials).
Supplementary Material
Ciac278_supplementary_data, contributor information.
Ivan A Molodtsov, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia.
Evgenii Kegeles, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Alexander N Mitin, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Olga Mityaeva, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Oksana E Musatova, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Anna E Panova, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Mikhail V Pashenkov, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Iuliia O Peshkova, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Almaqdad Alsalloum, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Walaa Asaad, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Anna S Budikhina, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Alexander S Deryabin, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Inna V Dolzhikova, Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, Russia.
Ioanna N Filimonova, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Alexandra N Gracheva, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Oxana I Ivanova, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Anastasia Kizilova, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Viktoria V Komogorova, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Anastasia Komova, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia. Research Institute of Personalized Medicine, National Center for Personalized Medicine of Endocrine Diseases, National Medical Research Center for Endocrinology, Moscow, Russia.
Natalia I Kompantseva, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Ekaterina Kucheryavykh, Government of Moscow, Moscow, Russia.
Denis А Lagutkin, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Yakov A Lomakin, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Alexandra V Maleeva, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Elena V Maryukhnich, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Afraa Mohammad, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Vladimir V Murugin, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Nina E Murugina, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Anna Navoikova, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Margarita F Nikonova, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Leyla A Ovchinnikova, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Yana Panarina, Government of Moscow, Moscow, Russia.
Natalia V Pinegina, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Daria M Potashnikova, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Elizaveta V Romanova, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia.
Aleena A Saidova, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia.
Nawar Sakr, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Anastasia G Samoilova, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Yana Serdyuk, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Naina T Shakirova, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Nina I Sharova, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia.
Saveliy A Sheetikov, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Anastasia F Shemetova, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Liudmila V Shevkova, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia. Research Institute of Personalized Medicine, National Center for Personalized Medicine of Endocrine Diseases, National Medical Research Center for Endocrinology, Moscow, Russia.
Alexander V Shpektor, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Anna Trufanova, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia.
Anna V Tvorogova, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia.
Valeria M Ukrainskaya, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Anatoliy S Vinokurov, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Daria A Vorobyeva, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Ksenia V Zornikova, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Grigory A Efimov, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia)
Musa R Khaitov, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia. Pirogov Russian National Research Medical University, Moscow, Russia.
Ilya A Kofiadi, National Research Center–Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia. Pirogov Russian National Research Medical University, Moscow, Russia.
Alexey A Komissarov, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Denis Y Logunov, Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, Russia.
Nelli B Naigovzina, A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
Yury P Rubtsov, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia.
Irina A Vasilyeva, National Medical Research Center for Phthisiopulmonology and Infectious Diseases of the Ministry of Health of the Russian Federation, Moscow, Russia.
Pavel Volchkov, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy, Russia. Research Institute of Personalized Medicine, National Center for Personalized Medicine of Endocrine Diseases, National Medical Research Center for Endocrinology, Moscow, Russia.
Elena Vasilieva, Clinical City Hospital named after I. V. Davydovsky, Moscow Department of Healthcare, Moscow, Russia. A. I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia.
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Through highly trained physicians and state-of-the-art technology, our 590-bed hospital in Kansas City, MO, delivers specialized, exceptional healthcare.
State-of-the-art technology and faster turnaround The Gritman Medical Center Laboratory performs more than 140,000 tests each year. We are the only laboratory on the Palouse to provide in-house, automated blood bank services with antibody identification and phenotyping. We're also the only lab in the Pacific Northwest to offer prostate health index testing. We offer a full-service ...
Research Centre for Medical Genetics Research Centre for Medical Genetics is a federal nonprofit academic research institution that leads in medical genetics field in Russia. Researchers and physician-scientists work side by side to transform scientific discoveries into breakthrough diagnostic methods and therapies in patient care.
Research Institutes & Labs The scientific core of Sechenov University is its Research Center (RC) which combines all the scientific departments of the University.
Find a Lab Near You Search to find a patient center lab close to you, view their hours and make an appointment. Be sure to bring the Labcorp test request form from your healthcare professional requesting the testing.
Anatek Labs, Inc. is a full service environmental analytical testing laboratory, established in 1992, with offices in Moscow, ID and Spokane, WA, and branch offices in Yakima and Wenatchee, WA. Our mission is to provide precise and accurate analytical data and technical assistance to our clients in a timely and cost-effective manner.
Research Institutes & Labs The scientific core of I.M. Sechenov First MSMU is its Research Center (RC) which combines all the scientific departments of the University. RC subdivisions are 7 research institutes (RI), over 30 laboratories and research departments, the Coordinating Research Council, and the Coordinating Department of Young Scientists.
Pirogov Russian National Research Medical University (formerly known as Russian State Medical University or RSMU) is a medical higher education institution in Moscow, Russia founded in 1906. It is fully accredited and recognized by Russia's Ministry of Education and Science and is under the authority of the Ministry of Health and Social ...
9 Laboratory of Complex Analysis of Big Bioimage Data, National Research Tomsk State University, Tomsk, 634050, Russia. 10 Department of Oncohematology, Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia.
Find 143 researchers and browse 4 departments, publications, full-texts, contact details and general information related to National Research Center for Hematology | Moscow, Russia |
Affiliations 1 World-Class Research Center Digital Biodesign and Personalized Healthcare, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia. 2 Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, I.M. Sechenov First Moscow Medical University, 119435 Moscow, Russia.
Find 94 researchers and browse 7 departments, publications, full-texts, contact details and general information related to Clinical Research Center of Moscow | Moscow, Russia | MKNC
In May 2014, the country's first scientific medical cluster in the field of oncology was established on the basis of three leading medical institutes: the Federal State Budgetary Institution "National Medical Research Center of Radiology" of the Ministry of Health of Russia. It included: P. Hertsen Moscow Oncology Research Institute, A.F. Tsyba Research Center and N.A. Lopatkin Research ...
Patient organization Conducting mass screening and prevention of socially significant diseases R&D center Innovative medicines and medical devices development Worldwide supply Medical equipment, goods and products Medical mobile complexes & laboratories Drugs, vaccines, medical consumables Establishing a centralized clinical diagnostic laboratory
Find 62 researchers working at Research Centre of Medical Genetics (RCMG) | Moscow, Russia |
P. Hertsen Moscow Oncology Research Institute (MORI) - the branch of the FSBI "National Medical Research Radiological Centre" (NMRRC) of the Ministry of Health of the Russian Federation is the first oncological hospital in Russia with high-tech equipment, the latest ways and methods of diagnostics and treatment of tumors.
Laboratory. INVITRO is a provider of full Central laboratory services and Clinical trial management services for Phase I-IV. INVITRO Laboratory also performs Local laboratory services for International clinical trials. Because of our broad experience and specialized expertise, we're in unique position to support safety laboratory tests as an ...
Student Health To accommodate changes in your schedule such as class cancellations, providers at Moscow Medical have same-day appointments available. We are familiar with paperwork concerning on-campus temporary disability permits, medical withdrawals, and arranging follow-up with on-campus services such as the Counseling and Testing Center.
Mikhail V Pashenkov, National Research Center-Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia. Iuliia O Peshkova, National Medical Research Center of Hematology, Moscow, Russian Federation (Russia) Almaqdad Alsalloum, Genome Engineering Laboratory, Moscow Institute of Physics and Technology, Dolgoprudniy ...
The results of the research conducted by the staff at the Institute of Pharmacy is published in monographs, textbooks and the following magazines: "Pharmacy", "New Pharmacy", "Pharmaceutical Chemistry Journal", "Bulletin of Voronezh State University," "Pharmaceutical industry", "Bulletin of the Scientific Center of Medical ...
We are Pathologists' Regional Laboratory, a full service clinical reference laboratory dedicated to enhancing patient care for our community.
Opportunities for Laboratory & Medical Technologists. As a progressive, innovation-driven medical center, UT Southwestern relies heavily on our lab techs, medical techs, histotechnologists, and cytotechnologists to play a key role in the diagnosis and care planning of patients.
Sergey Mikhailovich Ivanov currently works at the Department for Bioinformatics, Institute of Biomedical Chemistry, Moscow. Sergey does research in Bioinformatics. His most recent publication is ...
RCRPC coordinates a number of Institutions, which specialize on clinical and basic research, development of new diagnosis and treatment methods, as well as experimental drug manufacture. This enables RCRPC to maintain its status of the leading national medical scientific and research entity in both applied and fundamental cardiology.