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AIM To investigate interferon-γ-inducible protein-10’s(IP-10) potential to anticipate rapid(RVR)-and sustained virological responses(SVR) to chronic hepatitis C(CHC) treatment.METHODS We included case series examining RVR or SVR in relation to 24 or 48 wk treatment for CHC,in patients treatment free for at least six months,with genotype 1 or 4,and in relation to 24 wk treatment for genotype 2 and 3,with pegylated interferon in combination with ribavirin.Patients had to have both a baseline IP-10 level as well as a hepatitis C virus(HCV)-RNA determination 4 wk after treatment initiation or 24 wk after end of treatment.Studies including patients with liver diseases other than CHC,human immunodeficiency virus-infection,treatment with immunosuppresents or cytostatica,alcohol dependency or active intravenous drug-use were excluded.We found 81 articles by searching the MEDLINE and EMBASE databases.Eight studies were eligible for inclusion.Their quality were assesed using an 18 point checklist for case series,developed using a modified Delphi technique.Information was extracted from the articles,and no raw data was requisitioned.The review protocol wasregistered at the International Prospective Register of Systematic Reviews(reg.number:CRD42014008736).RESULTS Three studies reported on baseline IP-10 level in association with RVR.A signigficant association was found for HCV genotype 1 infection by two studies.Only two studies reported on HCV genotype 4 infected and genotype 2 and 3 infected patients,respectively.A trend was seen for an association between RVR and baseline IP-10 for genotype 4,while no association was found for genotype 2 and 3.Seven studies provided information regarding baseline IP-10 and SVR.Following the pattern regarding rapid virological response all five studies examining SVR in relation to baseline IP-10 levels for HCV,genotype 1 infected patients showed a significant association.Likewise a significant association was seen for HCV,genotype 4 infected,while no association was found for HCV,genotype 2 and 3 infected.Though only two studies examined the assosiation for HCV genotype 4 infected and HCV genotype 2 and 3 infected respectively.CONCLUSION We found indications of a possible association between baseline IP-10 level and virological responses in patients with CHC genotype 1 and 4.
AIM To investigate interferon-γ-inducible protein-10’s (IP-10) potential to anticipate rapid (RVR) -and sustained virological responses (SVR) to chronic hepatitis C (CHC) treatment. METHODS We included case series examining RVR or SVR in relation to 24 or 48 wk treatment for CHC, in patients treatment free for at least six months, with genotype 1 or 4, and in relation to 24 wk treatment for genotype 2 and 3, with pegylated interferon in combination with ribavirin. Patients had to have both a baseline IP-10 level as well as a hepatitis C virus (HCV) -RNA determination 4 wk after treatment start or 24 wk after end of treatment. Patients including patients with liver diseases other than CHC, human immunodeficiency virus-infection, treatment with immunosuppresents or cytostatica, alcohol dependency or active intravenous drug-use were excluded .We found 81 articles by searching the MEDLINE and EMBASE databases.Eight studies were eligible for inclusion.Their quality were assesed using an 18 point checkli st for case series, developed using a modified Delphi technique. Information was extracted from the articles, and no raw data was requisitioned. The review protocol wasregistered at the International Prospective Register of Systematic Reviews (reg. number: CRD42014008736) .RESULTS Three studies reported on baseline IP-10 level in association with RVR. A signigficant association was found for HCV genotype 1 infection by two studies. Ofly two studies reported on HCV genotype 4 infected and genotype 2 and 3 infected patients, respectively. A trend was seen for an association between RVR and baseline IP-10 for genotype 4, while no association was found for genotype 2 and 3. Sewn studies provided information regarding baseline IP-10 and SVR. Popular the pattern regarding rapid virological response all five studies examining SVR in relation to baseline IP-10 levels for HCV, genotype 1 infected patients showed a significant association. Leadwise a significant association was seen for HCV, genotype 4 infecte d, while no association was found for HCV, genotype 2 and 3 infected. Hough only two studies examined the assosiation for HCV genotype 4 infected and HCV genotype 2 and 3 infected respectively. CONCLUSION We found indications of a possible association between baseline IP-10 level and virological responses in patients with CHC genotypes 1 and 4.