PMID- 38263574 OWN - NLM STAT- Publisher LR - 20240124 IS - 1365-4632 (Electronic) IS - 0011-9059 (Linking) DP - 2024 Jan 23 TI - Major histocompatibility complex (MHC) gene frequency in acquired dermal macular hyperpigmentation: a case control study. LID - 10.1111/ijd.17017 [doi] AB - BACKGROUND: Human leukocyte antigen (HLA) allele frequencies have a known association with the pathogenesis of various autoimmune diseases. METHODS: We recruited 31 Indian patients of acquired dermal macular hyperpigmentation (ADMH) and 60 unrelated, age-and-gender-matched healthy controls. After history and clinical examination, 5 ml of blood in EDTA vials was collected. These samples were subjected to DNA extraction and the expression of HLA A, B, C, DR, DQ-A, and DQ-B was studied. RESULTS: There was a predominance of females with a gender ratio of 23 : 8 and the most common phototype was Fitzpatrick type IV (83.9%). There was a significant association of HLA A*03:01 (OR: 5.8, CI: 1.7-17.0, P = 0.005), HLA B*07:02 (OR: 5.3, CI: 1.9-14.6, P = 0.003), HLA C*07:02 (OR: 4.3, CI: 1.8-9.6, P = 0.001), HLA DRB1*10:01 (OR: 7.6, CI: 1.7-38.00, P = 0.022), and HLA DRB1*15:02 (OR: 31.0, CI: 4.4-341.8, P < 0.001) with patients compared to controls, whereas HLA DQB*03:01 was less associated with patients compared to controls (OR: 0.2, CI: 0.0-0.6, P = 0.009). CONCLUSION: Patients with ADMH are more likely to have the HLA A*03:01, HLA B 07*02, HLA C*07:02, HLA DRB1*10:01, HLA DRB1*15:02 and less likely to have the HLA DQB*03:01 allele. Larger cohort studies may thus be conducted studying these specific alleles. CI - (c) 2024 the International Society of Dermatology. FAU - Vinay, Keshavamurthy AU - Vinay K AUID- ORCID: 0000-0001-6323-4988 AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Kamat, Divya AU - Kamat D AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Narayan R, Vignesh AU - Narayan R V AUID- ORCID: 0000-0002-1791-965X AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Minz, Ranjana W AU - Minz RW AD - Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Singh, Jagdeep AU - Singh J AD - Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Bishnoi, Anuradha AU - Bishnoi A AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Chatterjee, Debajyoti AU - Chatterjee D AD - Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Parsad, Davinder AU - Parsad D AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Kumaran, Muthu S AU - Kumaran MS AD - Department of Dermatology, Venereology & Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. LA - eng GR - None/Postgraduate Institute of Medical Education and Research, Chandigarh/ PT - Journal Article DEP - 20240123 PL - England TA - Int J Dermatol JT - International journal of dermatology JID - 0243704 SB - IM EDAT- 2024/01/24 06:43 MHDA- 2024/01/24 06:43 CRDT- 2024/01/24 00:07 PHST- 2023/12/12 00:00 [revised] PHST- 2023/09/13 00:00 [received] PHST- 2023/12/28 00:00 [accepted] PHST- 2024/01/24 06:43 [medline] PHST- 2024/01/24 06:43 [pubmed] PHST- 2024/01/24 00:07 [entrez] AID - 10.1111/ijd.17017 [doi] PST - aheadofprint SO - Int J Dermatol. 2024 Jan 23. doi: 10.1111/ijd.17017.