今日の臨床サポート

非アルコール性脂肪肝炎(NASH)

関連論文:
img  17:  Randomized controlled trial testing the effects of weight loss on nonalcoholic steatohepatitis.
 
著者: Kittichai Promrat, David E Kleiner, Heather M Niemeier, Elizabeth Jackvony, Marie Kearns, Jack R Wands, Joseph L Fava, Rena R Wing
雑誌名: Hepatology. 2010 Jan;51(1):121-9. doi: 10.1002/hep.23276.
Abstract/Text UNLABELLED: Nonalcoholic steatohepatitis (NASH) is a chronic progressive liver disease that is strongly associated with obesity. Currently, there is no approved therapy for NASH. Weight reduction is typically recommended, but efficacy data are lacking. We performed a randomized controlled trial to examine the effects of lifestyle intervention using a combination of diet, exercise, and behavior modification, with a goal of 7% to 10% weight reduction, on clinical parameters of NASH. The primary outcome measure was the change in NASH histological activity score (NAS) after 48 weeks of intervention. Thirty-one overweight or obese individuals (body mass index [BMI], 25-40 kg/m(2)) with biopsy-proven NASH were randomized in a 2:1 ratio to receive intensive lifestyle intervention (LS) or structured education (control). After 48 weeks of intervention, participants assigned to LS lost an average of 9.3% of their weight versus 0.2% in the control group (P = 0.003). A higher proportion of participants in the LS group had a reduction of NAS of at least 3 points or had posttreatment NAS of 2 or less as compared with the control group (72% versus 30%, P = 0.03). NAS improved significantly in the LS group (from 4.4 to 2.0) in comparison with the control group (from 4.9 to 3.5) (P = 0.05). Percent weight reduction correlated significantly with improvement in NAS (r = 0.497, P = 0.007). Participants who achieved the study weight loss goal (>or=7%), compared with those who lost less than 7%, had significant improvements in steatosis (-1.36 versus -0.41, P < 0.001), lobular inflammation (-0.82 versus -0.24, P = 0.03), ballooning injury (-1.27 versus -0.53, P = 0.03) and NAS (-3.45 versus -1.18, P < 0.001).
CONCLUSION: Weight reduction achieved through lifestyle intervention leads to improvements in liver histology in NASH.

PMID 19827166  Hepatology. 2010 Jan;51(1):121-9. doi: 10.1002/hep.23276.
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