The reduction in body weight achieved by NAFLD patients during the 6-month intervention was associated with improved fat deposition and liver function. This intervention offers a practical approach for treating a large number of NAFLD patients with lifestyle modification therapy.
In Japan, hepatitis B or C virus infection has been a major health issue. For the prevention of liver‐related deaths, multifaceted strategies have been taken against hepatitis virus. In fiscal year (FY) 2002, nationwide screening for hepatitis was started as a part of health examinations provided by municipal governments. From FY2007, the hepatitis treatment network has been strengthened by the nationwide establishment of regional government‐based hepatitis treatment systems, comprising linked regional core centers, specialized institutions for hepatitis treatment, primary care physicians, and regional governments. Special subsidy program for patients with viral hepatitis was started at FY2008. The range of coverage has been expanding from patients treated with interferon to those on nucleotide analogs or interferon‐free therapies, including drug prices and examination expenses. The Basic Act on Hepatitis Measures was established in 2009. The Basic Guidelines for Promotion of Control Measures for hepatitis was issued in 2011, comprising nine principles in order to promote measures for hepatitis B and C. The Hepatitis Information Center was established in 2008. Its mission is to provide up‐to‐date hepatitis‐related information, supporting collaboration between regional core centers, and training medical personnel. The revision of the above‐mentioned Basic Guidelines in 2016 set the target as the reduction of patients progressing to cirrhosis and/or liver cancer. Achieving this goal definitely requires active collaboration among the national and local governments, regional core centers, and the Hepatitis Information Center, and participation by medical personnel, patients, and people with awareness.
Background and Aim: Abdominal obesity, a component of metabolic syndrome, is a major risk factor for non-alcoholic fatty liver disease (NAFLD). In recent worldwide definitions of metabolic syndrome, waist measurement has been proposed as a simple and useful estimate of abdominal obesity, taking into account gender differences in waist circumference. The present cross-sectional study investigated the correlation of hepatic fat accumulation and waist circumference in Japanese NAFLD patients to determine if there are gender differences in this relationship. Methods: Consecutive patients (n = 2111) who had at least one of two criteria for liver disease (alanine aminotransferase [ALT] level >30 IU/mL and aspartate aminotransferase [AST]/ALT ratio <1) underwent abdominal ultrasonography. Patients positive for hepatitis B virus, hepatitis C virus or autoimmune antibodies and whose alcohol intake was >20 g/ day were excluded. Patients with NAFLD underwent abdominal computed tomography. Hepatic fat accumulation was estimated by liver/spleen attenuation ratio (L/S ratio) and visceral adipose accumulation was measured as visceral fat area (VFA) at the umbilical level. Results: Of the 221 NAFLD patients, 103 were females. In males, the relationship between L/S ratio and waist circumference was negative (r = -0.356, P < 0.01), and there was no correlation in the female group. The relationship between L/S ratio and VFA was negative in both groups (males: r = -0.269, P < 0.01; females: r = -0.319, P < 0.01). Subcutaneous fat area/total fat area ratio at the umbilical level was larger in females than in males (P < 0.01). Conclusions: In NAFLD patients, waist measurement is more susceptible to gender differences than VFA.
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