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In developed counties Non-alcoholic fatty liver disease (NAFLD) becomes the most common cause of chronic liver disease , but its prevalence in developing countries like India is also increasing (10 -20%).Till date, there is no US-FDA approved therapy for NAFLD but drugs like metformin, pioglitazone, sitagliptin, vildagliptin Vitamin E, silymarin, statins and ezetimibe have been studied along with life style modification. Life style modifications is the current modality of treatment of NAFLD. All the above-mentioned drugs have some beneficial effects with limited use due to its adverse effects in patients of NAFLD and the study results are non-conclusive. In this scenario, a safe hepatoprotective drug to be evaluated in NAFLD.Alpha-lipoic acid (ALA) or 6,8-thioctic acid, is an endogenous molecule which functions as an important co-factor for various enzyme complexes in mitochondria and plays an important role in energy metabolism. ALA is a nutraceutical agent which also has hepatoprotective and anti-inflammatory effects.ALA is a nutraceutic having anti-inflammatory and antioxidant effects and also increasing insulin sensitivity with lesser adverse effects. The relative scarcity of a promising therapy and non-conclusiveness of the previous studies open up an arena of further research using a nutraceutic in non-diabetic NAFLD. So, the present study is designed to evaluate safety and efficacy of ALA in non-diabetic NAFLD patients.
Full description
In developed counties Non-alcoholic fatty liver disease (NAFLD) becomes the most common cause of chronic liver disease , but its prevalence in developing countries like India is also increasing (10 -20%). Most of the patients are diagnosed clinically and by increased serum transaminase and fatty changes in liver on abdominal ultrasound. Till date, there is no US-FDA approved therapy for NAFLD but drugs like metformin, pioglitazone, sitagliptin, vildagliptin Vitamin E, silymarin, statins and ezetimibe have been studied along with life style modification. Life style modifications is the current modality of treatment of NAFLD. All the above-mentioned drugs have some beneficial effects with limited use due to its adverse effects in patients of NAFLD and the study results are non-conclusive. In this scenario, a safe hepatoprotective drug to be evaluated in NAFLD.
Alpha-lipoic acid (ALA) or 6,8-thioctic acid, is an endogenous molecule which functions as an important co-factor for various enzyme complexes in mitochondria and plays an important role in energy metabolism. ALA is a nutraceutical agent which also has hepatoprotective and anti-inflammatory effects. Previous animal studies proved the hepatoprotective effect of alpha lipoic acid on various animal models. Inflammatory liver injury involves the production of inflammatory mediators like nitric oxide and TNF-alpha. Alpha -Lipoic acid significantly inhibits production of nitric oxide and TNF-alpha. The reduced production of nitric oxide and TNF-alpha in Kupffer cells may be involved in the hepatoprotective action conveyed by alpha-lipoic acid.It has been proved that ALA has potent anti - inflammatory and anti- oxidant properties.
Insulin resistance is associated with impaired hepatic cell damage, intrahepatic cholestasis, atherogenic dyslipidaemia and fibrosis in patients of NAFLD. Daily treatment with ALA for 28 days significantly improved insulin sensitivity performance in mice by decreasing insulin resistance, IL-6 levels, acetylcholinesterase enzyme activity and oxidative stress in liver. Various studies have shown that the ALA can efficiently improve insulin sensitivity and reverse the insulin resistance. Cytokeratin 18 (CK 18) is released into circulation as a consequence of oxidative stress, hepatocyte apoptosis or inflammation in response to lipid metabolism in NAFLD. CK - 18 level is higher in insulin resistance.
ALA is a nutraceutic having anti-inflammatory and antioxidant effects and also increasing insulin sensitivity with lesser adverse effects. The relative scarcity of a promising therapy and non-conclusiveness of the previous studies open up an arena of further research using a nutraceutic in non-diabetic NAFLD. So, the present study is designed to evaluate safety and efficacy of ALA in non-diabetic NAFLD patients.
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120 participants in 2 patient groups, including a placebo group
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Rituparna Maiti, MD; Monalisa Jena, MD
Data sourced from clinicaltrials.gov
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