Abstract:Objective To explore the correlation of HBV-DNA load with serum microRNA-122 and ALT in patients with chronic hepatitis B (CHB), and to provide scientific basis for clinical diagnosis and treatment of CHB. ?Methods?The clinical data of 200 patients with CHB treated in our hospital were retrospectively analyzed. Serum microRNA-122, HBV-DNA load, serum ALT and serum HBeAg, HBsAg, HBeAb, HBcAb, HBsAb were detected. Spearman correlation coefficient was used to analyze the correlation of serum HBV-DNA load with microRNA-122 and serum ALT in patients with CHB.?Results?The HBV-DNA load in CHB patients (pattern 1), those with early HBV infection or chronic HBV carriers (pattern 2), and those with acute HBV infection or chronic HBsAg carriers (pattern 3) was higher than that in those with acute or chronic infection (pattern 4) (P < 0.05). The serum ALT level in patients of pattern 1 was higher than that in patients of other patterns (P < 0.05). The serum ALT positive rate was the lowest in those with HBV-DNA load <5.00×102 copies/ml (P < 0.05). The expression level of microRNA-122 in those with HBV-DNA >1×107 copies/ml was the highest (P < 0.05). The Pearson correlation analysis showed that the HBV-DNA load was positively correlated with both ALT and microRNA-122 level (r?=?1.024, 0.946; P?0.05).?Conclusions?There is a certain correlation of HBV-DNA load with serum microRNA-122 and ALT level in CHB patients. The combined detection of the three can complement one another, improve the accuracy of diagnosis, and provide more scientific basis for clinical diagnosis and treatment of CHB.