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Sports Medicine: Research and Practice ; 12(2):22-31, 2022.
Article in Russian | Scopus | ID: covidwho-2250830


Objective: The aim of the study was to analyze the structure and dynamics of morbidity of athletes, members of sports teams of the city of Moscow based on the results of an indepth medical examination in the period 2017-2021. Materials and methods: The data of the medical examination of athletes, which took place at the Moscow scientific and Practical Center for Medical Rehabilitation, restorative and sports medicine, including instrumental, functional and laboratory studies from 2017 to 2021, were analyzed. In 2017, 15176 athletes were examined, in 2018 and 2019, 11200, in 2020, 10080 people and in 2021-11922 athletes. Results: The results of the study showed an increase in the proportion of amenorrhea within the triad of athletes, an increase in general therapeutic morbidity, diseases of the gastrointestinal tract, among which the proportion of secondary hyperbilirubinemia in 2021 increased 3 times compared to 2020, which, in our opinion, is also due to the impact of the pandemic and quarantine restrictions. The high prevalence of ophthalmological morbidity of athletes and changes in the cardiovascular system is shown. During 2017-2021, a change in the structure of cardiac morbidity was revealed in the form of an increase in the proportion of cardiac arrhythmias and hypertensive response to stress. An increase in the endocrine morbidity of athletes in 2021 was revealed due to an increase in the proportion of hypothyroidism and more frequent detection of hyperthyroidism, possibly related to the COVID19 pandemic, which requires further research. There was also an increase in diseases of the skin and genitourinary system in athletes. Psychological problems of athletes increased during the observation period from 2017 to 2021. There was no significant dynamics of surgical and traumatological diseases, otolaryngological pathologу. Conclusion: The results of the study indicate the importance of regular fullfledged examination of athletes, identification of various functional disorders and diseases for their timely prevention and treatment in order to preserve the health of athletes and improve athletic performance. © 2022 by the Author(s).

Issues in Educational Research ; 32(4):1623-1642, 2022.
Article in English | Web of Science | ID: covidwho-2169948


The aim of the article is to report on how the Covid-19 pandemic influenced education quality and learning efficiency in universities in the Republic of Armenia. A survey was administered to 783 students and 169 academic staff members at one of the universities in Armenia. Results indicate that both students (73%) and academic staff (54%) preferred offline (classroom) learning. The level of satisfaction with the effectiveness of online learning among academic staff was higher (65%) then among students (54%). The survey revealed some positive sides of online learning, connected with being able to record lessons;time flexibility;savings of time and money on transportation;and computer skills development. However, online learning has many negative sides, including being more tedious and stressful;lacking face-to-face communication and socialisation;a lack of control;leading to a competitive environment among students;difficulty in using interactive methods;and technical issues can occur frequently. The findings may be useful for universities in small, developing countries seeking to improve their online learning and education quality.

American Journal of Transplantation ; 22(Supplement 3):443, 2022.
Article in English | EMBASE | ID: covidwho-2063389


Purpose: SARS CoV-2 vaccination elicits both robust humoral and T-cell immune responses in healthy individuals. However, a comprehensive assessment of immune responses to SARS-CoV-2 vaccination in renal allograft recipients is variable and dependent primarily on Spike IgG levels. Here, we analyzed the humoral and T-cell responses in vaccinated transplant recipients. Method(s): 61Tx patients maintained either on Tacrolimus (TAC, 32) or Belatacept (BELA, 29) who were greater than one month post 2nd dose of the Pfizer BNT162b2, and 41 healthy individuals were enrolled. Fresh whole blood was incubated with SARS CoV-2 Spike peptides pool and the activated CD4+ (IL-2/TNF-alpha)+ and CD8+ (TNF-alpha/IFN-gamma)+ T cells were enumerated by flow cytometry and defined as CoV-2-specific T cells. Plasma was analyzed for Spike Receptor Binding Domain (RBD)-specific IgG by ELISA. The Spike RBD-specific IgG levels and Spikespecific CD4+/CD8+ T-cell immune responses were analyzed in TAC- and Bela- Tx patients along with healthy controls. Result(s): Our data demonstrated poor Spike IgG and T cell immune responses in Tx patients1M post-2nd dose of vaccine (21% v. 93% in positive Spike IgG and 37% v. 88% in positive T cell responses, Tx v. controls, respectively). However, 34% of Spike IgG (-) patients demonstrated positive CD4+ and/or CD8+ T-cell immune responses. No significant difference in T cell immunity was found between TAC and BELA treated patients. Conclusion(s): Immunocompromised Tx patients demonstrated significant defects in humoral and T cell immune response after vaccination. Patients maintained on TAC v. BELA demonstrated similar depressions in immune responses post-vaccination. 34% of vaccinated Tx patients, demonstrated Spike-specific T cell immunity despite being Spike IgG negative. This is suggestive of a divergent immune response with dominant cellular immunity. These observations are important since activation of T-cell immunity early after exposure to SARS-CoV2, while not preventing infection will likely modify severity of disease. (Table Presented).