Abstract:
BACKGROUND AND AIMS:Accumulating evidence has indicated that variations of mitochondrial DNA (mtDNA) content may affect the susceptibility to hepatocellular carcinoma (HCC). However, no study has been conducted to evaluate the association of circulating mtDNA content and the risk of liver cirrhosis, a leading cause of HCC. METHODS:We conducted a nested case-control study including 136 cirrhotic hepatitis B virus (HBV) cases and 136 frequency-matched non-cirrhotic HBV controls. We determined mtDNA content in serum DNA using quantitative real-time PCR and analyzed its association with cirrhosis risk. RESULTS:We found that cirrhotic HBV patients had significantly lower levels of mtDNA content than non-cirrhotic HBV controls (P = 0.0184). Compared to patients with high mtDNA content, those with low mtDNA content had a 2.25-fold increased risk of cirrhosis [odds ratio (OR) 2.25, 95 % confidence interval (CI) 1.26-4.02]. This association exhibited a significant dose relationship as evidenced in both tertile and quartile analyses (P for trend = 0.0018 and 0.0008, respectively). Stratified analyses showed that the association was prominent in younger patients (P = 0.0122), males (P = 0.0069), never smokers (P = 0.0063), never drinkers (P = 0.0078), patients with a family history of HBV infection (P = 0.0062), and patients with low values of aspartate aminotransferase to platelet ratio index (APRI), a commonly used noninvasive marker for cirrhosis (P = 0.0109). Moreover, a joint effect was observed between low mtDNA content and high APRI values on cirrhosis risk (OR 24.07, 95 % CI 6.72-86.24). CONCLUSIONS:Low circulating mtDNA content may confer an increased cirrhosis risk in HBV patients. Further prospective studies are warranted to validate these findings and explore the clinical significance.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Wang C,Hann HW,Hann RS,Wan S,Myers RE,Ye Z,Xing J,Yang Hdoi
10.1007/s10620-015-3523-1subject
Has Abstractpub_date
2015-06-01 00:00:00pages
1707-15issue
6eissn
0163-2116issn
1573-2568journal_volume
60pub_type
杂志文章abstract::The literature regarding the effect of nicotine and cigarette smoke on gastric blood flow is conflicting. The hydrogen gas clearance technique was used to measure the effects of nicotine and cigarette smoke on basal gastric mucosal blood flow in anesthetized rats. Blood flow was measured before, during, and after trea...
journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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