scholarly journals Dietary Interventions in Patients With Non-alcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 8 ◽  
Author(s):  
Veera Houttu ◽  
Susanne Csader ◽  
Max Nieuwdorp ◽  
Adriaan G. Holleboom ◽  
Ursula Schwab
Keyword(s):  
Systematic Review ◽  
Fatty Acids ◽  
Fatty Liver ◽  
Unsaturated Fatty Acids ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Dietary Interventions ◽  
Alcoholic Fatty Liver ◽  
Exercise Interventions

Background: With no approved pharmacotherapy to date, the present therapeutic cornerstone for non-alcoholic fatty liver diseases (NAFLD) is a lifestyle intervention. Guidelines endorse weight loss through dietary modifications, physical exercise, or both. However, no consensus exists on the optimal dietary treatment.Objectives: The aim of our systematic review and meta-analysis was to summarize and assess the evidence for applied types of dietary interventions on the liver and metabolic outcomes in patients with NAFLD, aside from any effects of exercise intervention.Methods: This systematic review was conducted according to the Preferred Reporting Items of Systematic Reviews and Meta-analysis (PRISMA) statement guidelines. The search was conducted in PubMed, Scopus, and Cochrane databases in February 2020. Included were only dietary interventions without exercise. This study was registered at PROSPERO: CRD42020203573.Results: Eight randomized controlled trials, seven with endpoint reduction of hepatic steatosis, one with an assessment of endpoint fibrosis, were included in this systematic review, five of which were included in the meta-analysis. Mediterranean dietary interventions without energy restriction (n = 3) showed significant reduction of intrahepatic lipid content (IHL) (SDM: −0.57, 95% CI: −1.04, −0.10), but there was no significant change in alanine transaminase (ALT) (SDM: 0.59, 95% CI: −0.5, −1.68). Hypocaloric dietary interventions with foods high in unsaturated fatty acids (n = 2) led to a significant decrease in ALT (SDM: −1.09, 95% CI: −1.49, −0.69) and aspartate aminotransferase (AST) (SDM: −0.75, 95% CI: −1.27, 0.23); yet effects on steatosis could not be aggregated due to different assessment techniques. Mediterranean diet did not lead to significant changes in concentrations of gamma-glutamyl transpeptidase (γGT), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), fasting glucose or insulin, or homeostatic assessment for insulin resistance.Conclusions: In patients with NAFLD, Mediterranean and hypocaloric dietary interventions favoring unsaturated fatty acids result in improvements in IHL and transaminases. Since many dietary intervention studies are combined with exercise interventions and there is a paucity of ample-sized studies examining dietary interventions on the more advanced and clinically relevant stages of NAFLD, that is active and fibrotic NASH, with multiparametric imaging and liver histology as outcome measures, the optimal dietary invention in NAFLD remains to be defined.

scholarly journals Sulforaphane ameliorates lipid profile in rodents: an updated systematic review and meta-analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kaili Du ◽  
Yuxin Fan ◽  
Dan Li
Keyword(s):  
Systematic Review ◽  
Weight Control ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Low Density Lipoprotein ◽  
Disease Model ◽  
Density Lipoprotein ◽  
Liver Weight ◽  
Lipoprotein Cholesterol ◽  
Alcoholic Fatty Liver

AbstractSulforaphane (SFN), a naturally-occurring isothiocyanate enriched in cabbage and broccoli, has been provided as food supplements to improve weight management and reduce lipid levels. However, its effects on serum lipid profiles are contradictory. In this review, a meta-analysis and systematic review of SFN on lipid reduction and weight control is assessed with mice and rats fed on high-fat diet. The effects of SFN supplementation were evaluated by weighted mean difference (WMD) in body weight (BW), liver weight (LW) and also by its effect on serum lipids. A random-effects model was applied to estimate the overall summary effect. SFN reduced BW (WMD: − 2.76 g, 95% CI: − 4.19, − 1.34) and LW (WMD: − 0.93 g, 95% CI: − 1.63, − 0.23) significantly in our ten trials. Its effects on serum total cholesterol (TC) (WMD: − 15.62 mg/dL, 95% CI: − 24.07, − 7.18), low-density lipoprotein cholesterol (LDL-C) (WMD: − 8.35 mg/dL, 95% CI: − 15.47, − 1.24) and triglyceride (TG) (WMD: − 40.85 mg/dL, 95% CI: − 67.46, − 14.24) were significant except for high-density lipoprotein cholesterol (HDL-C) component (WMD: 1.05 mg/dL, 95% CI: − 3.44, 5.54). However, species, disease model, duration, SFN dosage as well as route of administration did not explain the heterogeneity among studies. In summary, these findings provide new insights concerning preclinical strategies for treating diseases including obesity, diabetes, hypertension, non-alcoholic fatty liver disease as well as cardiovascular disease with SFN supplements.

scholarly journals Sulforaphane ameliorates lipid profile in rodents: An updated systematic review and meta-analysis

2020 ◽  
Author(s):  
Dan Li ◽  
Kaili Du ◽  
Yuxin Fan
Keyword(s):  
Systematic Review ◽  
Body Weight ◽  
Lipid Profile ◽  
Weight Control ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Liver Weight ◽  
Lipoprotein Cholesterol ◽  
Alcoholic Fatty Liver

Abstract Sulforaphane (SFN) which is enriched in cabbage and broccoli, a naturally-occurring isothiocyanate, has been provided as food supplements to improve weight management and reduce lipid levels. However, its effects on serum lipid profile are contradictory. In this review, a meta-analysis and systematic review of SFN on lipids reduction and weight control is assessed with mice and rats fed with high-fat diet. The effects of SFN supplementation were evaluated by weighted mean difference (WMD) and the corresponding standard error of body weight, liver weight and concentrations of lipids. A random-effects model was chosen to estimate the overall summary effect. Our analytic results of the meta-analysis revealed that SFN can reduce body weight (WMD: -2.76 g, 95% CI: -4.19, -1.34) and liver weight (WMD: -0.93 g, 95% CI: -1.63, -0.23) significantly from ten trials. Its effects on serum total cholesterol (WMD: -15.62 mg/dL, 95% CI: -24.07, -7.18), low-density lipoprotein cholesterol (WMD: -8.35 mg/dL, 95% CI: -15.47, -1.24) and triglyceride (WMD: -40.85 mg/dL, 95% CI: -67.46, -14.24) were significant except for high-density lipoprotein cholesterol (WMD: 1.05 mg/dL, 95% CI: -3.44, 5.54). The subgroup analytic results from findings unveiled that classifying studies according to species, disease model, duration, SFN dosage as well as administration route could not explain the heterogeneity among studies and change the results. In summary, these findings provide new insights concerning preclinical strategies for treating diseases including obesity, diabetes, hypertension, non-alcoholic fatty liver disease as well as cardiovascular disease with SFN supplements.

Probiotic and prebiotic interventions for non-alcoholic fatty liver disease: a systematic review and network meta-analysis

2021 ◽  
pp. 1-14
Author(s):  
H. Jin ◽  
X. Xu ◽  
B. Pang ◽  
R. Yang ◽  
H. Sun ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Fatty Liver Disease ◽  
Meta Analysis ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Randomised Trials ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Many studies have associated altered intestinal bacterial communities and non-alcoholic fatty liver disease, but the putative effects are inconclusive. The purpose of this network meta-analysis (NMA) was to evaluate the effects of probiotics, prebiotics, and synbiotics on non-alcoholic fatty liver disease through randomised intervention trials. Literature searches were performed until March 2020. For each outcome, a random NMA was performed, the surface under the cumulative ranking curve (SUCRA) was determined. A total of 22 randomised trials comparing prebiotic, probiotic, and synbiotic treatments included 1301 participants. Considering all seven results (aspartate aminotransferase, alanine aminotransferase, body mass index, weight, total cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol) together, the highest SUCRA values are probiotics (94%), synbiotics (61%) and prebiotics (56%), respectively. NMA results provide evidence that probiotics, prebiotics, and synbiotics can alleviate non-alcoholic fatty liver disease. However, due to the lack of high-quality randomised trials, this research also has some limitations.

scholarly journals Effects of Omega-3 Polyunsaturated Fatty Acid Supplementation on Non-Alcoholic Fatty Liver: A Systematic Review and Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2769 ◽  
Author(s):  
Cheng-Han Lee ◽  
Yun Fu ◽  
Shih-Jyun Yang ◽  
Ching-Chi Chi
Keyword(s):  
Fatty Liver ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Blood Lipid ◽  
Risk Of Bias ◽  
Liver Fat ◽  
Current Evidence ◽  
Omega 3 ◽  
Alcoholic Fatty Liver ◽  
Prevalent Disease

(1) Aim: Non-alcoholic fatty liver disease (NAFLD) is a prevalent disease worldwide. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) bear anti-inflammatory action and can ameliorate hyperlipidemia. We wish to appraise the effects of n-3 PUFAs supplement on NAFLD. (2) Methods: We searched CENTRAL, Embase, and MEDLINE on 29 March 2020 for randomized control trials (RCTs) on the effects of n-3 PUFAs supplementation in treating NAFLD. The Cochrane Collaboration’s tool was used to assess the risk of bias of included RCTs. (3) Results: We included 22 RCTs with 1366 participants. The risk of bias of included RCTs was generally low or unclear. n-3 PUFAs supplementation significantly reduced liver fat compared with placebo (pooled risk ratio 1.52; 95% confidence interval (CI) 1.09 to 2.13). n-3 PUFAs supplementation also significantly improved the levels of triglyceride, total cholesterol, high-density lipoprotein, and body-mass index, with pooled mean difference and 95% CI being −28.57 (−40.81 to −16.33), −7.82 (−14.86 to −0.79), 3.55 (1.38 to 5.73), and −0.46 (−0.84 to −0.08), respectively. (4) Conclusions: The current evidence supports the effects of n-3 PUFAs supplementation in improving fatty liver. n-3 PUFAs supplementation may also improve blood lipid levels and obesity.

scholarly journals Association between smoking and non-alcoholic fatty liver disease: A systematic review and meta-analysis

2018 ◽  
Vol 6 ◽  
pp. 205031211774522 ◽  
Author(s):  
Arash Akhavan Rezayat ◽  
Malihe Dadgar Moghadam ◽  
Mohammad Ghasemi Nour ◽  
Matin Shirazinia ◽  
Hamidreza Ghodsi ◽  
...  
Keyword(s):  
Systematic Review ◽  
Liver Disease ◽  
Fatty Liver ◽  
Odds Ratio ◽  
Fatty Liver Disease ◽  
Meta Analysis ◽  
P Value ◽  
Exclusion Criteria ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Background/aims: Non-alcoholic fatty liver disease is one of the most common chronic liver diseases. Some risk factors are known to influence the development of non-alcoholic fatty liver disease, but the effect of tobacco smoking on the progression of non-alcoholic fatty liver disease is controversial. The main goal of this systematic review and meta-analysis is to investigate the association between smoking and non-alcoholic fatty liver disease. Method: Electronic databases (PubMed, Scopus, and ISI Web of Science) were searched to find published articles on non-alcoholic fatty liver disease and smoking until December 2016. All relevant studies were screened by inclusion and exclusion criteria and compatible studies were chosen. The Newcastle–Ottawa Scale was used to assess the methodological quality of eligible articles. Subsequently, information was gathered based on the following: author, publication year, keywords, country, inclusion and exclusion criteria, main results, study design, conclusion, and confounder variables (age, body mass index, gender, ethnicity, and diabetes). Finally, analyses were performed using Comprehensive Meta-Analysis Software. Results: Data were extracted from 20 observational studies (9 cross-sectional, 6 case-control, 4 cohort studies, and 1 retrospective cohort study). A significant association was observed between smoking and non-alcoholic fatty liver disease with a pooled odds ratio of 1.110 (95% confidence interval, 1.028–1.199), p-value = 0.008. The statistical heterogeneity was medium with an I2 of 40.012%, p-heterogeneity = 0.074. Also there was a significant relation between non-alcoholic fatty liver disease and passive smoking with a pooled odds ratio of 1.380 (95% confidence interval, 1.199–1.588; p-value = 0.001; I2 = 59.41; p-heterogeneity = 0.117). Conclusion: Our meta-analysis demonstrated that smoking is significantly associated with non-alcoholic fatty liver disease. Further prospective studies exploring the underlying mechanisms of this association should be pursued. Also passive smoking increases the risk of non-alcoholic fatty liver disease about 1.38-fold. The effects of smoking cigarettes on active smokers (current smoker, former smoker, and total smoker) are less than passive smokers. Further studies are needed to compare the of effects of passive and active smoking on non-alcoholic fatty liver disease.

scholarly journals Effects of Canagliflozin on Fatty Liver Indexes in Patients with Type 2 Diabetes: A Meta-analysis of Randomized Controlled Trials

2018 ◽  
Vol 21 ◽  
pp. 222-235 ◽  
Author(s):  
Boyu Li ◽  
Ying Wang ◽  
Zhikang Ye ◽  
Hui Yang ◽  
Xiangli Cui ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Fatty Liver ◽  
Randomized Controlled Trials ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Controlled Trials ◽  
Randomized Controlled ◽  
Glutamyl Transferase

PURPOSE: Non-alcoholic fatty liver disease (NAFLD) affects about 75% of patients with type 2 diabetes mellitus (T2DM). We conducted a meta-analysis to determine the effect of canagliflozin on fatty liver indexes in T2DM patients. METHODS: A literature search of PubMed, Embase and Cochrane was conducted up to March 30, 2017. The liver function test and lipid profile were extracted from randomized controlled trials (RCTs) to evaluate the effect of canagliflozin on fatty liver. Weighted mean differences (WMDs) or relative risks and 95% confidence intervals (CIs) were computed by using either fixed or random-effects models. Sensitivity analysis and publication bias were evaluated. RESULTS: Our results showed that canagliflozin decreased serum concentrations of  alanine amino transferase (WMD: -11.68 [95% CI: -18.95, -10.95]; P<0.001), aspartate amino transferase (WMD: -7.50 [95% CI: -10.61, -4.38]; P<0.001), gamma-glutamyl transferase (WMD: -15.17 [95% CI: -17.73, -12.61]; P<0.001), triglycerides (WMD: -0.10 [95% CI: -0.15, -0.05]; P<0.001) but increased low-density lipoprotein cholesterol (WMD: 0.1 [95% CI: 0.06, 0.13]; P<0.001), high-density lipoprotein cholesterol (WMD: 0.06 [95% CI: 0.05, 0.07]; P<0.001) at week 26 or 52. CONCLUSIONS: Our results indicated that canagliflozin may have a protective effect on fatty liver in T2DM patients. The limitation was that the liver biopsy was hard to obtain in published studies. More RCTs specified on NAFLD are needed to get further information. This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.

Sign in / Sign up

Export Citation Format

Share Document