PMID- 25824849 OWN - NLM STAT- MEDLINE DCOM- 20160127 LR - 20150427 IS - 1878-5883 (Electronic) IS - 0022-510X (Linking) VI - 352 IP - 1-2 DP - 2015 May 15 TI - HLA-DRB1 does not have a role in clinical response to interferon-beta among Iranian multiple sclerosis patients. PG - 37-40 LID - S0022-510X(15)00134-3 [pii] LID - 10.1016/j.jns.2015.03.004 [doi] AB - BACKGROUND & OBJECTIVES: The role of human leukocyte antigen (HLA) in clinical response to immunotherapy is not completely known. In this study we evaluated the relationship between HLA-DRB1 genotype, which has been proved to be more common in Iranian MS patients, and clinical response to interferon-beta (IFNbeta), which is the most common immunotherapy for relapsing-remitting MS. DESIGN AND SETTING: In this study 68 Iranian patients with confirmed diagnosis of RRMS who had been referred to and admitted in Neurology Department of Amiralam and Khatam Hospitals in Tehran were selected. Patients were followed prospectively for 2 years since initiation of therapy and clinical data, including EDSS scores were recorded every 3 months. MRI was performed at the time of diagnosis and each year. METHODS: HLA-DRB1 typing was performed by polymerase chain reaction (PCR) for all patients and data was analyzed by STATA 12th edition. RESULTS: There were 47 (69.1%) responders and 21 (30.9%) non-responders. These two groups were demographically and clinically comparable. Fisher's exact test did not show any difference between HLA-DRB1 allele frequencies in responders and non-responders. CONCLUSIONS: Our findings confirmed the lack of association between HLA-DRB1 and clinical response to IFNbeta among MS patients as previous studies had done. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Samadzadeh, Sara AU - Samadzadeh S AD - Shefa Neurosciences Research Center, Tehran, Islamic Republic of Iran; Tehran University of Medical Sciences, Neurology Department, Tehran, Islamic Republic of Iran. FAU - Tabibian, Elnaz AU - Tabibian E AD - Tehran University of Medical Sciences, Neurology Department, Tehran, Islamic Republic of Iran. FAU - Sabokbar, Tayebeh AU - Sabokbar T AD - Neurology & Neurosciences Research Center, Qom University of Medical Sciences, Qom, Islamic Republic of Iran; Tehran University of Medical Sciences, Department of Medical Genetics, Cancer Institute, Tehran, Islamic Republic of Iran. FAU - Shakoori, Abbas AU - Shakoori A AD - Tehran University of Medical Sciences, Department of Medical Genetics, Cancer Institute, Tehran, Islamic Republic of Iran. FAU - Dehgolan, Shahram Rahimi AU - Dehgolan SR AD - Tehran University of Medical Sciences, Neurology Department, Tehran, Islamic Republic of Iran. FAU - Armaki, Saeed Azad AU - Armaki SA AD - Shefa Neurosciences Research Center, Tehran, Islamic Republic of Iran. FAU - Aslanbeigi, Bahram AU - Aslanbeigi B AD - Shefa Neurosciences Research Center, Tehran, Islamic Republic of Iran. FAU - Abolfazli, Roya AU - Abolfazli R AD - Shefa Neurosciences Research Center, Tehran, Islamic Republic of Iran; Tehran University of Medical Sciences, Neurology Department, Tehran, Islamic Republic of Iran. Electronic address: abolfazl@sina.tums.ac.ir. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150309 PL - Netherlands TA - J Neurol Sci JT - Journal of the neurological sciences JID - 0375403 RN - 0 (HLA-DRB1 Chains) RN - 0 (Immunologic Factors) RN - 77238-31-4 (Interferon-beta) SB - IM MH - Adult MH - Aged MH - Female MH - Follow-Up Studies MH - Genotype MH - HLA-DRB1 Chains/*genetics MH - Humans MH - Immunologic Factors/therapeutic use MH - Immunotherapy/methods MH - Interferon-beta/administration & dosage/*therapeutic use MH - Iran MH - *Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Multiple Sclerosis, Relapsing-Remitting/*drug therapy/*genetics/pathology/physiopathology MH - Polymerase Chain Reaction MH - Prospective Studies MH - Treatment Outcome OTO - NOTNLM OT - Frequencies in responders and non-responders OT - HLA-DR beta-Chains OT - Interferon-beta OT - Iran OT - Multiple sclerosis EDAT- 2015/04/01 06:00 MHDA- 2016/01/28 06:00 CRDT- 2015/04/01 06:00 PHST- 2014/10/04 00:00 [received] PHST- 2015/02/09 00:00 [revised] PHST- 2015/03/02 00:00 [accepted] PHST- 2015/04/01 06:00 [entrez] PHST- 2015/04/01 06:00 [pubmed] PHST- 2016/01/28 06:00 [medline] AID - S0022-510X(15)00134-3 [pii] AID - 10.1016/j.jns.2015.03.004 [doi] PST - ppublish SO - J Neurol Sci. 2015 May 15;352(1-2):37-40. doi: 10.1016/j.jns.2015.03.004. Epub 2015 Mar 9.