Association Between ABO-RHD Blood Groups and COVID-19: A Preliminary Study of 76 Cases
Adou Adjoumanvoule Honore,
Siransy Kouabla Liliane,
Memel Lasme Roselle Charline,
Yeboah Oppong Richard,
Goran-Kouacou Amah Patricia,
Kone Djakaridja,
Kadiane N’Dri Juliette,
Assi Aya Ursule Aniela,
Gnemagnon Mahi Eric Constant,
Ouattara Awa,
Oura Brou Doris,
Moussa Sali,
Koya Hebert Gautier,
Seri Yida Jocelyne,
Aba Yapo Thomas,
Krah Ouffoue
Issue:
Volume 11, Issue 1, March 2023
Pages:
1-5
Received:
7 March 2023
Accepted:
6 April 2023
Published:
10 May 2023
Abstract: Introduction: Blood types are most often incriminated in susceptibility to COVID-19. Blood group O subjects are reportedly less susceptible to COVID-19. However, these reports are mainly from countries with high infection rates. The overall objective of this study was to investigate the association between the risk of COVID-19 infection, its severity, and ABO-RHD blood groups at the Training Hospitals of Bouake and Cocody (Ivory Coast). Material and methods: This was a prospective study that lasted four months. All patients with COVID-19 at the time of the study and followed at the Training Hospitals of Bouake and Cocody, hospitalized in the COVID-19 centers or in home confinement, were included. T lymphocyte subpopulations were counted on the BD FACS Calibur flow cytometer after labeling. ABO and RHD blood typing was performed in all patients. Results: Of the 76 patients collected, 78.9% were homebound, 18.4% in hospital and 2.6% in the ICU. The mean age was 41.92 ± 15.13 years with a male predominance. The majority of hospitalized patients were significantly of blood group A (p=0.020). CD4 and CD8 T lymphopenia were significantly more frequent in patients with blood group A than in those with blood groups B, AB and O. Conclusion: The impact of blood group on the severity of the disease would exist. Our study showed that blood group A subjects were more likely to have COVID-19. In addition, a statistically significant association between blood type A and CD4 and CD8 T lymphopenia was found. These results should be confirmed by studies based on larger patient samples.
Abstract: Introduction: Blood types are most often incriminated in susceptibility to COVID-19. Blood group O subjects are reportedly less susceptible to COVID-19. However, these reports are mainly from countries with high infection rates. The overall objective of this study was to investigate the association between the risk of COVID-19 infection, its severi...
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Variability of Immune Biomarkers with the Graft Function in Kidney Transplant Patients in India, an Observational Prospective Cohort Study
Bejugama Katyayani,
Guditi Swarnalatha,
Taduri Gangadhar
Issue:
Volume 11, Issue 1, March 2023
Pages:
6-12
Received:
31 July 2023
Accepted:
30 August 2023
Published:
14 September 2023
Abstract: In renal transplantation (RT), the major issue is to maintain the immune homeostasis, limiting graft rejection (GR), and promoting transplant tolerance. A total of 70 subjects of chronic kidney disease patients on maintenance haemodialysis, opted for RT and 20 controls were recruited. The Tregs% (CD4+CD25+), concentration of cytokines IL –10 and IL 17 were measured in pre-and post-transplant at a defined timelines with stable graft function (SGF) and with GR for two years, using flow cytometer and sandwich ELISA method. With SGF, Tregs% Baseline [8.5 (6.5–10.7) vs. HCs [14.25 (13–18), p < 0.01)], at Baseline vs. six months [11.54 (8.9–15)], p < 0.001); At Baseline [3.05 (1.05–5.2) vs. GR 8.5 (6.5–10.7), p < 0.05]. Serum IL 10 baseline [3.6 (2.56–4.6) vs. HC (6.4 (4.8-9.8), p<0.001]. Serum IL 17 levels at baseline [120 (92 - 176) vs. HC [20.88 (18-55), p<0.05], day four vs. baseline [180 (160.5-257.45); p<0.05], day 90 vs. baseline [53.3 (48-100), p< 0.05] and this was maintained for two years, with GR vs. baseline [190 (105-372); p<0.05]. ROC analysis of Tregs% (AUC of 0.758 and a p – value of <0.05), IL-10 (AUC of 0.8 and a p – value of 0.117), IL-17 (AUC of 0.937 and a p – value of <0.05). With SGF, Tregs % increased from 6 months, IL-17 decreased from 3 months, IL-10 did not show changes and continued till two years; with GR, Tregs% decreased from baseline, IL-10 did not show changes, and IL-17 increased due to high inflammation. ROC analysis showed that the Tregs% and IL-17 are better predictors of graft outcome. However, the association between biomarkers with graft function couldn’t be evaluated which needs further studies.
Abstract: In renal transplantation (RT), the major issue is to maintain the immune homeostasis, limiting graft rejection (GR), and promoting transplant tolerance. A total of 70 subjects of chronic kidney disease patients on maintenance haemodialysis, opted for RT and 20 controls were recruited. The Tregs% (CD4+CD25+), concentration of cytokines IL –10 and IL...
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