4.6 Article

The association between steatosis and liver damage in transfusion-dependent beta thalassaemia patients

期刊

BRITISH JOURNAL OF HAEMATOLOGY
卷 200, 期 4, 页码 517-523

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WILEY
DOI: 10.1111/bjh.18492

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liver fibrosis; liver steatosis; non-alcoholic fatty liver disease; transfusion-dependent thalassaemia

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Non-alcoholic fatty liver disease (NAFLD) is a global health problem. This study aimed to evaluate the effects of iron overload and NAFLD on liver damage in patients with transfusion-dependent thalassaemia (TDT). The results showed that significant steatosis (S1) in TDT patients was associated with higher BMI and liver fibrosis scores, increasing the risk of liver fibrosis.
Non-alcoholic fatty liver disease (NAFLD) is a global health problem. Iron is the leading cause of liver damage in patients with transfusion-dependent thalassaemia (TDT), and data on the contribution of NAFLD to liver damage in TDT is lacking. Forty-five heavily transfused TDT patients who did not have biochemical or ultrasonic evidence of liver cirrhosis were evaluated for effects of iron overload, including the presence of diabetes mellitus, hypogonadism, serum ferritin, R2-MRI-liver, and liver enzymes alanine aminotransferase and aspartate aminotransferase. Liver fibrosis and steatosis were estimated using transient elastography (TE). Nine (20%) patients had significant steatosis (S1), and their body mass index (BMI) and liver fibrosis scores were higher than in patients without significant steatosis (S0) (p = 0.03 and p = 0.004, respectively). On regression analysis, the controlled attenuation parameter (CAP) score (i.e., degree of liver steatosis) was associated only with increasing BMI. The TE score (i.e., degree of liver fibrosis) was associated with increasing age, CAP score, male gender, and presence of diabetes. Neither liver steatosis nor fibrosis showed significant association with the liver iron concentration or iron-related organ damage (hypogonadism). In this cohort of TDT patients, steatosis of the liver, which is associated with increasing BMI, appeared to increase the risk of liver fibrosis.

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