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Rev Esp Enferm Dig ; 112(6): 462-466, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32450701


OBJECTIVE: the aim of this study was to investigate the expression of integrin αvß6 in normal, hepatitis B, HBV-associated cirrhosis and HBV-associated HCC liver tissues. METHODS: immunohistochemistry and real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) were used to study the expression of integrin αvß6 in HBV-associated cirrhosis (n = 88), chronic hepatitis B ( n= 11), HBV-associated HCC (n = 84) and normal (n = 10) human liver tissues. RESULTS: the expression of integrin αvß6 was significantly upregulated in HBV-associated liver cirrhosis and the expression increased with an increase in severity of cirrhosis. Furthermore, it was moderately or weakly expressed in chronic hepatitis B and HBV-associated HCC liver tissues when compared to normal liver tissue. CONCLUSION: integrin αvß6 could be a predictive marker for the progression of liver cirrhosis associated with HBV infection. Further studies are needed to determine the association between the expression of integrin αvß6 in hepatitis B and HBV-associated HCC liver tissues.

Aging (Albany NY) ; 12(8): 7163-7182, 2020 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-32315284


Biliary atresia (BA) is an idiopathic neonatal cholestatic disease. Recent genome-wide association study (GWAS) revealed that common variation of ADD3, GPC1, ARF6, and EFEMP1 gene was associated with BA susceptibility. We aimed to evaluate the association of these genes with BA in Chinese population. Twenty single nucleotide polymorphisms (SNPs) in these four genes were genotyped in 340 BA patients and 1,665 controls. Three SNPs in ADD3 were significantly associated with BA, and rs17095355 was the top SNP (PAllele = 3.23×10-6). Meta-analysis of published data and current data indicated that rs17095355 was associated with BA susceptibility in Asians and Caucasians. Three associated SNPs were expression quantitative trait loci (eQTL) for ADD3. Two GPC1 SNPs in high linkage disequilibrium (LD) showed nominal association with BA susceptibility (PAllele = 0.03 for rs6707262 and PAllele = 0.04 for rs6750380), and were eQTL of GPC1. Haplotype harboring these two SNPs almost reached the study-wide significance (P = 0.0035). No association for ARF6 and EFEMP1 was found with BA risk in the current population. Our study validated associations of ADD3 and GPC1 SNPs with BA risk in Chinese population and provided evidence of epistatic contributions of genetic factors to BA susceptibility.