PMID- 10800159 OWN - NLM STAT- MEDLINE DCOM- 20000830 LR - 20061115 IS - 0390-6078 (Print) IS - 0390-6078 (Linking) VI - 85 IP - 5 DP - 2000 May TI - Human herpesvirus 6 in hematologic diseases in China. PG - 458-63 AB - BACKGROUND AND OBJECTIVE: The prevalence and pathogenic role of human herpesvirus 6 (HHV-6) in various benign and malignant hematologic diseases remain largely unknown. The aim of this study was to search for a possible involvement of HHV-6 in the pathogenesis of hematologic diseases. DESIGN AND METHODS: The presence of HHV-6 DNA sequences was examined by polymerase chain reaction (PCR) in bone marrow mononuclear cells from 241 patients with benign and malignant hematologic diseases in China. Platelet-associated immunoglobulin (PAIg) of 66 idiopathic thrombocytopenic purpura (ITP) patients was measured by competitive enzyme-linked immunosorbent assay. The presence of HHV-6 DNA in sera from 31 ITP patients was examined by PCR. Paired serum samples from 19 ITP patients were analyzed for anti-HHV-6 IgG titers using an indirect immunofluorescence assay. RESULTS: HHV-6 DNA was detected in 41% and 37.5% of ITP and acute leukemia patients respectively, but in only 6.7% of patients with iron deficiency anemia. HHV-6 positivity for ITP patients with excessive PAIgG was significantly higher than in patients with a normal level of PAIgG. HHV-6 DNA was not detected in any of the serum samples from ITP patients. None of the 19 cases of ITP showed a significant increase in anti-HHV-6 antibody titers during the convalescent phase compared with the onset phase. INTERPRETATION AND CONCLUSIONS: Our results indicate that HHV-6 infection might be associated with excessive PAIgG in some cases of ITP, and that the virus persists in a latent state. The pathogenic role of HHV-6 in ITP needs to be confirmed by further investigations. FAU - Ma, X T AU - Ma XT AD - National Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Tianjin, China. FAU - Song, Y H AU - Song YH FAU - Lu, D M AU - Lu DM FAU - Mu, G F AU - Mu GF FAU - Li, G AU - Li G FAU - Ji, L X AU - Ji LX FAU - Yang, R C AU - Yang RC FAU - Wu, K F AU - Wu KF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Italy TA - Haematologica JT - Haematologica JID - 0417435 RN - 0 (Autoantibodies) RN - 0 (DNA, Viral) RN - 0 (Immunoglobulin G) SB - IM MH - Acute Disease MH - Adolescent MH - Adult MH - Anemia, Iron-Deficiency/virology MH - Autoantibodies/blood MH - Blood Platelets/immunology MH - Bone Marrow Cells/metabolism/virology MH - China/epidemiology MH - DNA, Viral/blood MH - Female MH - Hematologic Diseases/epidemiology/*virology MH - Herpesviridae Infections/complications MH - Herpesvirus 6, Human/*genetics MH - Humans MH - Immunoglobulin G/blood MH - Leukemia/virology MH - Leukocytes, Mononuclear/virology MH - Male MH - Purpura, Thrombocytopenic, Idiopathic/virology EDAT- 2000/05/09 09:00 MHDA- 2000/09/02 11:01 CRDT- 2000/05/09 09:00 PHST- 2000/05/09 09:00 [pubmed] PHST- 2000/09/02 11:01 [medline] PHST- 2000/05/09 09:00 [entrez] PST - ppublish SO - Haematologica. 2000 May;85(5):458-63.