• Motoh Iwasa, Ryosuke Sugimoto, Kyoko Yoshikawa, Hirohide Miyachi, Rumi Mifuji-Moroka, Hideaki Tanaka, Yoshinao Kobayashi, Hiroshi Hasegawa, and Yoshiyuki Takei.
• Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan. Electronic address: motoh@clin.medic.mie-u.ac.jp.
• Nutrition. 2015 Sep 1; 31 (9): 1173-4.

ObjectiveCachexia, or disease-related loss of muscle mass, is a complication of chronic liver disease that modifies its clinical course. The aim of this study was to determine whether improvement in liver function and cachexia through control of the hepatitis B virus (HBV) increases skeletal muscle mass.MethodsThe blood tests and cross-sectional area (mm(2)) of the psoas major muscle on computed tomography were measured before and after long-term entecavir therapy (median, 39 mo; range, 14-76 mo) in patients with hepatitis B (17 men, 13 women; mean age, 63 ± 13 y).ResultsThe anti-HBV effect was good in 30 patients given entecavir, and most patients had undetectable serum HBV-DNA levels (93%) and alanine aminotransferase normalization (83%) within a median of 32 mo. Overall, no significant change in the area of the psoas major muscle was seen in any of the patients, although a significant increase was seen when limited to cases of protein malnutrition defined as serum albumin (Alb) <4 g/dL. A positive correlation was seen for the amount of change (Δ) in the psoas major muscle and the amount of change (Δ) in Alb.ConclusionsThe present findings suggest that skeletal muscle mass may fluctuate in parallel with Alb levels. An improvement in low muscle mass may thus be expected from antiviral therapy for viral liver disease, especially in patients with cachexia.Copyright © 2015 Elsevier Inc. All rights reserved.

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