PMID- 30242999 OWN - NLM STAT- MEDLINE DCOM- 20190514 LR - 20190514 IS - 1110-4902 (Print) VI - 25 IP - 1 DP - 2018 Jan TI - Frequency of Circulating B1a and B2 B-cell Subsets in Egyptian Patients with Type 2 Diabetes Mellitus. PG - 71-80 AB - Type 2 diabetes mellitus (T2DM) is a growing health problem in Egypt. T2DM is recognized as chronic inflammatory disease with involvement of immune cells including B cells. We aimed to determine the frequency of antibody secreting B1a and B2 B cells in T2DM patients, their correlation with diabetes metabolic parameters and whether they play a role in diabetic foot infection (DFI) development. This study included 56 participants, recruited from Al-Zahraa hospital, Al-Azhar University, Egypt. Of these, 36 patients were diagnosed with T2DM, divided to two groups; (1) DM group (n=19) recently diagnosed, without foot complication; (2) DFI group (n=17); in addition to a Control group (n=20). The study assessed the frequency of circulating B1a (CD19+CD23-CD5+), and B2 (CD19+CD23+CD5-) cells by flow cytometry in diabetic patients. Comparison of the 3 studied groups revealed significant differences in frequency of studied total B cells (P=0.011), B1a (P < 0.001) and B2 subsets (P < 0.001). Comparison of B cell subsets between DFI, DM groups showed significant decrease in B1a in DFI group (P < 0.001). B1a cells % showed inverse correlation with HgA1c (r=-0.47, P < 0.001), LDL (r=-0.64, P < 0.001), and TG (r=-0.67, P < 0.001) but showed positive correlation with HDL (r=0.61, P < 0.001), while B2 cells showed opposite correlations. We concluded that imbalance of B cell subsets is seen in T2DM subjects. Beneficial role of B1a cells was spotted as they correlated inversely with glycemia and lipidemia in contrary to B2 cells. Decrease in B1a cells may predispose to DFI development. CI - Copyright(c) by the Egyptian Association of Immunologists. FAU - Hammad, Reham H AU - Hammad RH AD - Department of Clinical Pathology, Faculty of Medicine for girls, Al-Azhar University, Cairo, Egypt. FAU - El-Madbouly, Asmaa A AU - El-Madbouly AA AD - Department of Clinical Pathology, Faculty of Medicine for girls, Al-Azhar University, Cairo, Egypt. FAU - Kotb, Hend G AU - Kotb HG AD - Department of Internal Medicine, Faculty of Medicine for girls, Al-Azhar University, Cairo, Egypt. FAU - Zarad, Mohammed S AU - Zarad MS AD - Department of Surgery, Faculty of Medicine for girls, Al-Azhar University, Cairo, Egypt. LA - eng PT - Journal Article PL - Egypt TA - Egypt J Immunol JT - The Egyptian journal of immunology JID - 9816016 SB - IM MH - B-Lymphocyte Subsets/*cytology MH - Case-Control Studies MH - Diabetes Mellitus, Type 2/*immunology MH - Diabetic Foot/*immunology MH - Egypt MH - Flow Cytometry MH - Humans EDAT- 2018/09/23 06:00 MHDA- 2019/05/15 06:00 CRDT- 2018/09/23 06:00 PHST- 2018/09/23 06:00 [entrez] PHST- 2018/09/23 06:00 [pubmed] PHST- 2019/05/15 06:00 [medline] PST - ppublish SO - Egypt J Immunol. 2018 Jan;25(1):71-80.