• 제목/요약/키워드: alcoholic steatohepatitis

검색결과 36건 처리시간 0.023초

Overview of RCT for Non-Alcoholic Fatty Liver Disease and Non-Alcoholic Steatohepatitis

  • Son, Chang-Gue
    • 대한한의학회지
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    • 제32권3호
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    • pp.44-49
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    • 2011
  • Objective: This study aimed to get information on the current status of therapies to date for non-alcoholic fatty liver disease (NAFLD), including non-alcoholic steatohepatitis (NASH). Methods: All randomized clinical controlled trial (RCT)-derived papers for NAFLD or NASH were reviewed via PubMed Database. Results: 39 RCTs met the review criteria, of which 15 and 24 papers were for NAFLD and NASH, respectively. 83% of the papers were released since 2006, and 30 studies were conducted for western medicines, antioxidants and lifestyle intervention whereas nine trials were done using herbal medicine or acupuncture which showed positive outcome. Conclusions: NAFLD and NASH are new epidemic disorders which can be a target of traditional Oriental medicine. This study will be helpful for the Oriental medicine-based strategies or therapeutic development for them.

A Case of Non-alcoholic Steatohepatitis Treated with Herbal Medicine

  • Son, Chang-Gue
    • 대한한의학회지
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    • 제32권3호
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    • pp.50-54
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    • 2011
  • Objective: To understand the characteristic of non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), and study the traditional Korean medicine (TKM)-based strategies or therapeutics for them. Methods: A male patient with NASH was treated with only Oriental therapies, and then the clinical outcome was evaluated by serum biochemical parameters and radiographs. Result: The clinical and biochemical values of the patient fluctuated over three years according to the treatments and cessation of herbal medicines. Conclusion: NASH or NAFLD are now prevalent and these disorders could be targets of TKM, and this case report would provide useful information.

Protective Effect of Lactobacillus fermentum LA12 in an Alcohol-Induced Rat Model of Alcoholic Steatohepatitis

  • Kim, Byoung-Kook;Lee, In-Ock;Tan, Pei-Lei;Eor, Ju-Young;Hwang, Jae-Kwan;Kim, Sae-Hun
    • 한국축산식품학회지
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    • 제37권6호
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    • pp.931-939
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    • 2017
  • Alcoholic liver disease (ALD) is a complex multifaceted disease that involves oxidative stress and inflammation as the key mediators. Despite decades of intensive research, there are no FDA-approved therapies, and/or no effective cure is yet available. Probiotics have received increasing attention in the past few years due to their well-documented gastrointestinal health-promoting effects. Interestingly, emerging studies have suggested that certain probiotics may offer benefits beyond the gut. Lactobacillus fermentum LA12 has been previously demonstrated to play a role in inflammatory-related disease. However, the possible protective effect of L. fermentum LA12 on ALD still remain to be explored. Thus, the aim of this study was to evaluate the possible protective effect of L. fermentum LA12 on alcohol-induced gut barrier dysfunction and liver damage in a rat model of alcoholic steatohepatitis (ASH). Daily oral administration of L. fermentum LA12 in rat model of ASH for four weeks was shown to significantly reduced intestinal nitric oxide production and hyperpermeability. Moreover, small intestinal histological- and qRT-PCR analysis further revealed that L. fermentum LA12 treatment was capable of up-regulating the mRNA expression levels of tight junction proteins, thereby stimulating the restitution of barrier structure and function. Serum and hepatic analyses also revealed that the restoration of epithelial barrier function may prevent the leakage of endotoxin into the blood, subsequently improve liver function and hepatic steatosis in the L. fermentum LA12-treated rats. Altogether, results in this study suggest that L. fermentum LA12 may be used as a dietary adjunct for the prevention and treatment of ASH.

Amomum villosum var. xanthioides의 에틸아세테이트 분획물이 항산화 활성을 통한 간 소포체 스트레스 유발 비알코올성 지방간 저해 (Ethyl Acetate Fraction of Amomum villosum var. xanthioides Attenuates Hepatic Endoplasmic Reticulum Stress-Induced Non-Alcoholic Steatohepatitis via Enhancement of Antioxidant Activities)

  • 안은정;신수영;이승영;이창민;최경민;정진우
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.60-60
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    • 2021
  • Non-alcoholic fatty liver disease (NAFLD), especially including non-alcoholic steatohepatitis (NASH) is one of the common diseases with 25% of prevalence globally, but there is no thera-peutic access available. Amomum villosum var. xanthioides (Wall. ex Baker) T.L.Wu & S.J.Chen (AX), which is a medicinal herb and traditionally used for treating digestive tract disorders in Asia countries. We aimed to examine pharmacological effects of ethyl acetate fraction of AX (AXEF) against ER stress-induced NASH mice model using C57/BL6J male mice by tunicamycin (TM, 2 mg/kg) injection focusing on the oxidative stress. Mice were orally administrated AXEF (12.5, 25, or 50 mg/kg), silymarin (50 mg/kg) or distilled water daily for 5 days, and outcomes for fatty liver, inflammation, and oxidative stress were measured in serum or liver tissue levels. AXEF drastically attenuated hepatic ER stress-induced NASH which were evidenced by decreases of li-pid droplet accumulations, serum liver enzymes, hepatic inflammations, and cell death signals in the hepatic tissue or serum levels. Interestingly, AXEF showed potent antioxidant effects by quenching of reactive oxidative stress and its final product of lipid peroxide in the hepatic tissue, specifically increase of metallothionein (MT). To confirm underlying actions of AXEF, we ob-served that AXEF increase MT1gene promoter activities in the physiological levels. Collectively, AXEF showed antioxidant properties on TM-induced ER stress of NASH by enhancement of MTs.

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소아에서의 비만과 인슐린 저항성 (Obesity and Insulin Resistance in Childhood)

  • 최광해
    • Journal of Yeungnam Medical Science
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    • 제29권2호
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    • pp.73-76
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    • 2012
  • More and more children are becoming obese and overweight due to several factors that include a high energy density in the diet (a high fat intake) and low energy expenditure. Consequently childhood obesity is becoming a significant health problem. Fat tissue releases many cytokines such as resistin, tumor necrosis factor-${\alpha}$, leptin, interleukin-6. These adipocytokines induce obesity-related insulin resistance. Insulin resistance is a key component of obesity-related metabolic problems such as hypertension, type 2 diabetes mellitus, dyslipidemia, non-alcoholic steatohepatitis, acanthosis nigricans and polycystic ovarian syndrome. This review article focused on insulin resistance and its related metabolic diseases.

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산겨릅나무로부터 추출된 HIMH0021의 알콜성·비알콜성 지방간염 질환에서의 약리학적 분석 및 지방간염 및 간섬유화 억제능 평가 (Pharmacological Analyses of HIMH0021 Extracted from Acer Tegmentosum and Efficacy Tests of Steatohepatitis and Hepatic Fibrosis in NASH/ASH)

  • 이용준;유지훈
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.5-5
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    • 2021
  • Alcoholic and nonalcoholic steaohepatitis is a leading form of chronic liver disease with few biomakers ad treatment options currently available. a progressive disease of NAFLD may lead to fibrosis, cirrhosis, and hepatocellular carcinoma. Recently, we extracted HIMH0021, which is an active flavonoid component in the Acer tegmentosum extract, has been shown to protect against liver damage caused by hepatic dysfunction. Therefore, in this study, we aimed to investigate whether HIMH0021 could regulate steatohepatitis and liver fibrosis during alcoholic or nonalcoholic metabolic process. HIMH0021, which was isolated from the active methanol extract of A. tegmentosum, inhibited alcohol-induced steatosis and attenuated the serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) during hepatocellular alcohol metabolism, both of which promote lipogenesis as well as liver inflammation. Treatment with HIMH0021 conferred protection against lipogenesis and liver injury, inhibited the expression of cytochrome P4502E1, and increased serum adiponectin levels in the mice subjected to chronic-plus-binge feeding. Furthermore, in hepatocytes, HIMH0021 activated fatty acid oxidation by activating pAMPK, which comprises pACC and CPT1a. These findings suggested that HIMH0021 could be used to target a TNFα-related pathway for treating patients with alcoholic hepatitis.

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비만아에서 비알코올성 지방간염의 위험요인 (Risk Factors of Non-alcoholic Steatohepatitis in Childhood Obesity)

  • 윤은실;박용훈;최광해
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제10권2호
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    • pp.179-184
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    • 2007
  • 목 적: 비만 인구 증가와 함께 비알코올성 지방간염의 유병율이 증가하고 있어 이에 대한 관심이 높아지고 있지만, 비만아 중 비알코올성 지방간염 발생의 위험요인에 대한 연구는 별로 없는 실정이어서, 비만아 중 비알코올성 지방간염을 예측할 수 있는 위험 요인을 알아보고자 하였다. 방 법: 영남대학교 병원 소아 비만 클리닉을 방문한 비만아 84명을 대상으로 하였으며, ALT 40 IU/L 이하 (Group 1), 41 IU/L 이상(Group 2)로 나누었으며, 간염이 있는 경우에는 다른 원인에 의한 간염은 배제 시켰으며 나이와 총콜레스테롤, 고밀도와 저밀도 지단백 콜레스테롤, 중성지방, 비만도, 체지방률을 비교하고 빈도를 분석하였다. 결 과: 연령, 총콜레스테롤, 고밀도와 저밀도 지단백 콜레스테롤, 중성지방, 비만도, 체지방율의 평균을 비교하였을 때 1군에서는 연령이 $10.5{\pm}1.6$세, 2군은 $10.7{\pm}2.0$세였으며, 총콜레스테롤은 1군에서 $183.0{\pm}29.1$ mg/dL, 2군에서 $183.7{\pm}31.3$ mg/dL였고, 고밀도 지단백 콜레스테롤은 1군, 2군 각각 $53.0{\pm}10.2$ mg/dL, $55.7{\pm}13.0$ mg/dL, 저밀도 지단백 콜레스테롤은 1군에서 $113.4{\pm}30.2$ mg/dL, 2군에서 $113.0{\pm}30.0$ mg/dL, 중성지방은 1군에서 $99.4{\pm}62.9$ mg/dL, 2군에서 $114.2{\pm}47.3$ mg/dL, 비만도는 1군에서 $44.7{\pm}12.2%$, 2군에서 $47.9{\pm}15.1%$, 체지방률은 각각 $32.7{\pm}5.0%$, $34.0{\pm}4.8%$로 두 군 간에 통계적으로 유의한 차이가 없었으나, 이상지혈증의 분포는 총콜레스테롤, 고밀도와 저밀도 지단백 콜레스테롤은 두 군에서 통계적으로 유의한 차이가 없었으나, 중성지방은 110 mg/dL 이상인 경우가 1군에서 13명(28.9%), 2군에서 21명(53.8%)으로 2군에서 통계적으로 유의하게 많았다(p-value=0.023). 결 론: 비만아에서 비알코올성 지방간염을 예측할 수 있는 위험요인으로 중성지방이 유용할 것으로 생각된다.

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Experimental model and novel therapeutic targets for non-alcoholic fatty liver disease development

  • Yujin Jin;Kyung-Sun Heo
    • The Korean Journal of Physiology and Pharmacology
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    • 제27권4호
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    • pp.299-310
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    • 2023
  • Non-alcoholic fatty liver disease (NAFLD) is a complex disorder characterized by the accumulation of fat in the liver in the absence of excessive alcohol consumption. It is one of the most common liver diseases worldwide, affecting approximately 25% of the global population. It is closely associated with obesity, type 2 diabetes, and metabolic syndrome. Moreover, NAFLD can progress to non-alcoholic steatohepatitis, which can cause liver cirrhosis, liver failure, and hepatocellular carcinoma. Currently, there are no approved drugs for the treatment of NAFLD. Therefore, the development of effective drugs is essential for NAFLD treatment. In this article, we discuss the experimental models and novel therapeutic targets for NAFLD. Additionally, we propose new strategies for the development of drugs for NAFLD.

The expression and secretion of vimentin in the progression of non-alcoholic steatohepatitis

  • Lee, Su Jin;Yoo, Jae Do;Choi, Soo Young;Kwon, Oh-Shin
    • BMB Reports
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    • 제47권8호
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    • pp.457-462
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    • 2014
  • The pathogenesis of non-alcoholic steatohepatitis (NASH) is not fully understood. In the present study, both in vitro and in vivo vimentin expression and secretion in NASH were investigated. The exposure of palmitate and lipopolysaccharide (LPS) to HepG2 cells enhanced caspase-3 activity and vimentin expression, respectively. The combined effects of both treatments on vimentin expression and caspase-3 activation appeared to be synergic. In contrast, blockade of caspase-3 activity by zVADfmk resulted in a significant reduction of cleaved vimentin and secreted vimentin into the culture supernatant. Similarly, lipid accumulation and inflammation occurred in mice fed a methionine-choline-deficient diet; thus, vimentin expression and serum cleaved vimentin levels were increased. However, vimentin was not significantly upregulated, and no cleavage occurred in mice fed a high-fat diet. It was conclusively determined that lipid accumulation in hepatocytes induces apoptosis through a caspase-3 dependent pathway; whereas, LPS stimulates vimentin expression, leading to its cleavage and secretion. Increased vimentin fragment levels indicated the existence of substantial hepatocellular death via an apoptotic mechanism.

Involvement of Hepatic Innate Immunity in Alcoholic Liver Disease

  • Byun, Jin-Seok;Jeong, Won-Il
    • IMMUNE NETWORK
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    • 제10권6호
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    • pp.181-187
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    • 2010
  • Excessive alcohol consumption is one of the critical causative factors leading to alcoholic liver disease (ALD). ALD is characterized by a wide spectrum of liver damage, ranging from simple uncomplicated liver steatosis (fatty liver) to steatohepatitis and liver fibrosis/cirrhosis. It has been believed that the obvious underlying cause for ALD is due to hepatocyte death induced by alcohol itself. However, recent sparkling studies have shown that diverse immune responses contribute to ALD because liver is enriched with numerous immune cells. Especially, a line of evidence has suggested that innate immune cells such as Kupffer cells and natural killer (NK)/NKT cells are significantly involved in the pathogenesis of ALD via production of pro-inflammatory cytokines and other mediators. Indeed, more interestingly, hepatic stellate cells (HSCs), known as a major cell inducing liver steatosis and fibrosis, can be killed by liver NK cells, which could be suppressed by chronic alcohol consumption. In this review, with the view of liver as predominant innate immune organ, we describe the pathogenesis of ALD in which what roles of innate immune cells are and how they are interacting with HSCs.