PMID- 25132488 OWN - NLM STAT- MEDLINE DCOM- 20151015 LR - 20140904 IS - 1096-9071 (Electronic) IS - 0146-6615 (Linking) VI - 86 IP - 11 DP - 2014 Nov TI - Characterization of overt and occult hepatitis B virus infection among HTLV-1 positive healthy carriers in the Northeast of Iran; AN HTLV-I endemic area. PG - 1861-7 LID - 10.1002/jmv.24046 [doi] AB - To date, no studies have provided data on hepatitis B virus (HBV) prevalence among asymptomatic, healthy human T-lymphotropic virus (HTLV-I) positive carriers. This sero- and molecular epidemiology study was performed on patients in the Northeast of Iran, which is an endemic area for HTLV-I infection. A total of 109 sera were collected from HTLV-I positive healthy carriers who were admitted to Ghaem Hospital, Mashhad City. All were tested for HBV serology and subsequently, real time PCR was carried out on the samples, regardless of the results of the serology. Standard PCR and direct sequencing were applied on positive samples. All cases were negative for HBsAg, Anti-HBc, and anti-HBs were positive in 34 (31.1%), and 35 (32%) individuals, respectively. There were 19 (17.4%) cases that were positive only for anti-HBs, and they had already received HBV vaccine. 16 (15%) were positive for both anti-HBs and anti-HBc, indicating a past-resolved HBV infection. 18 (16.5%) were isolated as anti-HBc, and 56 (51.3%) were negative for all HBV serological markers. Only one subject (0.9%) had detectable HBV DNA (2153 copy/ml), and assigned as being an occult HBV infection. The low prevalence of HBsAg, despite the high percentage of anti-HBc positive cases, might be related to the suppression effect of HTLV-I on surface protein expression. The low prevalence of HBV infection among HTLV-I positive healthy carriers from an endemic region, indicates that the epidemiology of HTLV-I and HBV coinfection is related to the endemicity of HBV in that region, rather than HTLV-I endemicity. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Chenari, Maryam AU - Chenari M AD - Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. FAU - Norouzi, Mehdy AU - Norouzi M FAU - Ghalichi, Leila AU - Ghalichi L FAU - Rezaee, Abdolrahim AU - Rezaee A FAU - Yari, Atefe AU - Yari A FAU - Alavian, Seyed Moayed AU - Alavian SM FAU - Jazayeri, Seyed Mohammad AU - Jazayeri SM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140813 PL - United States TA - J Med Virol JT - Journal of medical virology JID - 7705876 RN - 0 (DNA, Viral) RN - 0 (Hepatitis B Antibodies) RN - 0 (Hepatitis B Core Antigens) RN - 0 (Hepatitis B Surface Antigens) SB - IM MH - Adult MH - Aged MH - Carrier State/*epidemiology/*virology MH - Coinfection/*epidemiology MH - DNA, Viral/blood/chemistry/genetics MH - Female MH - HTLV-I Infections/*complications/*epidemiology MH - Hepatitis B/*complications/*epidemiology MH - Hepatitis B Antibodies/blood MH - Hepatitis B Core Antigens/blood MH - Hepatitis B Surface Antigens/blood MH - Hepatitis B virus/isolation & purification MH - Humans MH - Iran/epidemiology MH - Male MH - Middle Aged MH - Polymerase Chain Reaction MH - Sequence Analysis, DNA OTO - NOTNLM OT - ATL OT - HAM/TSP OT - HBV OT - HTLV-I OT - coinfection EDAT- 2014/08/19 06:00 MHDA- 2015/10/16 06:00 CRDT- 2014/08/19 06:00 PHST- 2014/07/15 00:00 [accepted] PHST- 2014/08/19 06:00 [entrez] PHST- 2014/08/19 06:00 [pubmed] PHST- 2015/10/16 06:00 [medline] AID - 10.1002/jmv.24046 [doi] PST - ppublish SO - J Med Virol. 2014 Nov;86(11):1861-7. doi: 10.1002/jmv.24046. Epub 2014 Aug 13.