PMID- 24470873 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140128 LR - 20211021 IS - 2008-3866 (Print) IS - 2008-3874 (Electronic) IS - 2008-3866 (Linking) VI - 16 IP - 3 DP - 2013 Mar TI - Association of IL-10 Gene Polymorphisms and Human T Lymphotropic Virus Type I-Associated Myelopathy/tropical Spastic Paraparesis in North-East of Iran (Mashhad). PG - 258-63 AB - The underlying mechanisms leading to the development of human T-cell lymphotropic virus type I (HTLV-I) associated myelopathy/tropical spastic paraparesis (HAM/TSP) in HTLV-I infected individuals are not fully understood. Host genetic factors appear to be involved as risk factors for developing HAM/TSP. We investigated the possible contribution of interleukin-10 (IL-10) as a risk factor to HAM/TSP by comparing frequencies of promoter region single nucleotide polymorphisms in HTLV-I infected Iranian patients who either remained asymptomatic or developed HAM/TSP and asymptomatic HTLV-I carriers. Healthy, uninfected individuals from the same region served as healthy controls. Significant differences were observed in the distribution of IL-10 promoter alleles and genotypes at position -819 and -592 between HAM/TSP patients and healthy controls (P=0.01), and between HTLV-I carriers and healthy controls (P=0.02). The frequency of the low IL-10 producer haplotype (-1082*A, -819*T, -592*A) was significantly associated with HTLV-I carriage or HAM/TSP compared with healthy controls (P=0.02 and 0.01, respectively). Our results suggest that IL-10 -819*T and -592*A alleles are significant risk factors for developing HTLLV-I infection but do not appear to convey additional risk for developing HAM/TSP. FAU - Shirdel, Abbas AU - Shirdel A AD - Department of Hematology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Azarpazhooh, Mahmoud Reza AU - Azarpazhooh MR AD - Neurology Department, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Sahebari, Maryam AU - Sahebari M AD - Rheumatic Diseases Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Ghanbari, Mohsen AU - Ghanbari M AD - Immunology Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Mirfeizi, Seyedeh Zahra AU - Mirfeizi SZ AD - Rheumatic Diseases Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Hutchinson, Ian AU - Hutchinson I AD - Immunology Research Group, Faculty of Life Sciences, The University of Manchester, United Kingdom. FAU - Ziaee, Aghigh AU - Ziaee A AD - Immunology Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. FAU - Rafatpanah, Houshang AU - Rafatpanah H AD - Inflammation and Inflammatory Disease Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. LA - eng PT - Journal Article PL - Iran TA - Iran J Basic Med Sci JT - Iranian journal of basic medical sciences JID - 101517966 PMC - PMC3881251 OTO - NOTNLM OT - Gene OT - HAM/TSP OT - HTLV-I OT - IL-10 OT - Polymorphisms EDAT- 2014/01/29 06:00 MHDA- 2014/01/29 06:01 PMCR- 2013/03/01 CRDT- 2014/01/29 06:00 PHST- 2012/01/13 00:00 [received] PHST- 2012/06/07 00:00 [accepted] PHST- 2014/01/29 06:00 [entrez] PHST- 2014/01/29 06:00 [pubmed] PHST- 2014/01/29 06:01 [medline] PHST- 2013/03/01 00:00 [pmc-release] AID - ijbms-16-258 [pii] PST - ppublish SO - Iran J Basic Med Sci. 2013 Mar;16(3):258-63.