scholarly journals Whole-Grain Consumption Does Not Affect Obesity Measures: An Updated Systematic Review and Meta-analysis of Randomized Clinical Trials

2019 ◽  
Vol 11 (2) ◽  
pp. 280-292 ◽  
Author(s):  
Omid Sadeghi ◽  
Mehdi Sadeghian ◽  
Sepideh Rahmani ◽  
Vahid Maleki ◽  
Bagher Larijani ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Body Weight ◽  
Waist Circumference ◽  
Randomized Clinical Trials ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Total Sample ◽  
Fat Free Mass ◽  
Effect Sizes ◽  
Whole Grain

ABSTRACT Since the release of a previous meta-analysis on the effect of whole-grain intake on obesity measures, several clinical trials have been published. Therefore, we aimed to update the previous meta-analysis on the effect of whole-grain intake on obesity measures by including recently published studies, as well as considering the main limitations in that analysis. We searched the online databases of PubMed, Scopus, Clarivate Web of Science, EmBase, and Google Scholar for relevant studies published up to February 2019, using relevant keywords. Randomized clinical trials investigating the effect of whole-grain products or diets high in whole-grain foods, compared with a control diet, on anthropometric measures [including body weight, BMI, waist circumference, and fat mass (FM)] were included. In total, 21 studies with a total sample of 1798 participants, aged ≥18 years, were considered. Based on 22 effect sizes from 19 studies on body weight, with a total sample of 1698 adults, we found no significant effect of whole-grain consumption on body weight. The same findings were obtained for BMIs, such that using 10 effect sizes from 10 clinical trials with a total sample of 769 individuals we did not find any significant effect. With regards to body fat percentage [weighted mean difference (WMD): 0.27; 95% CI: −0.05 to 0.58%; P = 0.09], FM (WMD: 0.45; 95% CI: −0.12 to 1.02 kg; P = 0.12), fat-free mass (WMD: 0.31; 95% CI: −0.67 to 0.06 kg; P = 0.10), and waist circumference (WMD: 0.06; 95% CI: −0.50 to 0.63 cm; P = 0.82), we failed to find any significant effect of whole-grain consumption. In conclusion, our findings did not support current recommendations of whole-grain intake in attempts to control obesity measures. Given the beneficial effects of whole-grain intake on other measures of human health, additional well-designed studies are required to further investigate the effect on obesity. The protocol has been registered with PROSPERO (registration number CRD42019125320).

scholarly journals The Effect of L-Arginine Supplementation on Obesity-Related Indices: A Systematic Review and Meta-Analysis of Randomized Clinical Trials

2019 ◽  
pp. 1-11 ◽  
Author(s):  
Seyed Mohammad Mousavi ◽  
Alireza Milajerdi ◽  
Somaye Fatahi ◽  
Jamal Rahmani ◽  
Meysam Zarezadeh ◽  
...  
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Body Weight ◽  
Waist Circumference ◽  
Randomized Clinical Trials ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Statistical Heterogeneity ◽  
Mean Differences ◽  
Arginine Supplementation

Abstract. The clinical studies regarding the effect of L-arginine in human anthropometry have not been fully consistent, therefore, we carried out a systematic review and meta-analysis of randomized clinical trials in order to precisely evaluate and quantify the efficacy of L-arginine on weight, waist circumference, and BMI. We searched online databases including PubMed, SCOPUS, and Google Scholar for relevant articles up to September 2017. Eligible articles were reviewed by two independent investigators. Mean differences of the outcomes were used for calculation of weighted mean difference (WMD) derived from the random-effects model. Statistical heterogeneity between studies was examined using Cochran’s Q-test and I 2 index. Funnel plot and Egger’s tests were performed to assess the publication bias. In our initial search, we found 1598 publications, of which 8 RCTs (9 treatment arms) were included. The results of the meta-analysis displayed a significant reduction in WC following L-arginine supplementation (WMD: −2.97 cm; 95% CI: −4.75 to −1.18, P = 0.001). However, L-arginine intervention had not elicited a significant effect on BMI (WMD: −0.51 kg/m2; 95% CI: −1.11 to .08, P = 0.09) and body weight (WMD: −0.57 kg; 95% CI: −1.77 to 0.61, P = 0.34). Subgroup analyses displayed that longer-term interventions (≥8 weeks) had a positive effect on body weight and using < 8 g/day L-arginine with longer duration (≥8 weeks) could significantly decrease BMI. In conclusion, this meta-analysis result suggested L-arginine supplementation could reduce waist circumference without any significant effect on body weight and body mass index.

The effects of garlic supplementation on weight loss: A systematic review and meta-analysis of randomized controlled trials

2019 ◽  
pp. 1-13 ◽  
Author(s):  
Manije Darooghegi Mofrad ◽  
Jamal Rahmani ◽  
Hamed Kord Varkaneh ◽  
Alireza Teymouri ◽  
Seyed Mohammad Mousavi
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Body Weight ◽  
Waist Circumference ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Pooled Analysis ◽  
Cochrane Library ◽  
Random Effects Models ◽  
Online Databases

Abstract. Obesity is related to increase in the incidence of morbidity and mortality. Studies have suggested anti-obesity properties of garlic; however, results are inconsistent. This systematic review and meta-analysis is done to summarize the data obtained from available randomized clinical trials on the effect of garlic supplementation on body weight, Body Mass Index (BMI), and Waist Circumference (WC). The online databases of Scopus, PubMed, Google Scholar and Cochrane library were searched until March 2018 for related publications using relevant keywords. Effect sizes of eligible studies were pooled using random-effects models. Cochran’s Q-test and I2 index were used for assessing heterogeneity. We found 1241 records in our initial search, of which 13 randomized clinical trials (RCTs) with 15 treatment arms were included. Pooled analysis showed that garlic administration might significantly decrease WC (Weighed Mean Difference (WMD): −1.10 cm, 95% CI: −2.13, −0.07, P = 0.03, I2 = 0%). However, garlic intervention had no significant effect on body weight (WMD): −0.17 kg, 95% CI: −0.75 to 0.39, P = 0.54, I2 = 0%) and BMI (WMD: −0.17 kg/m2, 95% CI: −0.52, 0.16, P = 0.30, I2 = 44.5%) as compared to controls. From Subgroup analysis, it was ascertained that the effect of garlic supplementation on BMI was significant in trials with duration < 12 weeks (WMD: −0.58 kg/m2, 95% CI: −1.08, −0.08, I2 = 19.8%, P = 0.02) compared to those with higher duration (>12 weeks). The current meta-analysis results suggest that garlic supplementation seems to reduce waist circumference unlike body weight and BMI.

scholarly journals Randomized Clinical Trials of Constitutional Acupuncture: A Systematic Review

2009 ◽  
Vol 6 (s1) ◽  
pp. 59-64 ◽  
Author(s):  
Myeong Soo Lee ◽  
Byung-Cheul Shin ◽  
Sun-Mi Choi ◽  
Jong Yeol Kim
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Randomized Clinical Trials ◽  
Rating Scale ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Total Sample ◽  
Pain Reduction ◽  
Population Characteristics ◽  
Constitutional Medicine

The aim of this systematic review is to compile and critically evaluate the evidence from randomized clinical trials (RCTs) for the effectiveness of acupuncture using constitutional medicine compared to standard acupuncture. Ten databases were searched through to December 2008 without language restrictions. We also hand-searched nine Korean journals of oriental medicine. We included prospective RCTs of any form of acupuncture with or without electrical stimulation. The included trials had to investigate constitutional medicine. There were no restrictions on population characteristics. Forty-one relevant studies were identified, and three RCTs were included. The methodological quality of the trials was variable. One RCT found Sasang constitutional acupuncture to be superior to standard acupuncture in terms of the Unified PD Rating Scale and freezing gate in Parkinson's disease (PD). Another two RCTs reported favorable effects of eight constitutional acupuncture on pain reduction in patients with herniated nucleus pulposi and knee osteoarthritis. Meta-analysis demonstrated positive results for eight constitutional acupuncture compared to standard acupuncture on pain reduction (weighted mean difference: 10 cm VAS, 1.69, 95% CI 0.85–2.54,P< 0.0001; heterogeneity: τ2= 0.00, Χ2= 0.00,P= 0.96, I2= 0%). Our results provide suggestive evidence for the effectiveness of constitutional acupuncture in treating pain conditions compared to standard acupuncture. However, the total number of RCTs and the total sample size included in our analysis were too small to draw definite conclusions. Future RCTs should assess larger patient samples with longer treatment periods and appropriate controls.

Effects of garlic supplementation and its derivatives on body weight and composition in adults: an updated systematic review and meta-analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Monireh Panbehkar-Jouybari ◽  
Mehdi Mollahosseini ◽  
Asieh Panjeshahin ◽  
Mahdieh Hosseinzadeh
Keyword(s):  
Systematic Review ◽  
Body Weight ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Pooled Analysis ◽  
Fat Free Mass ◽  
Effect Sizes ◽  
Anthropometric Indices ◽  
Content Type ◽  
Online Databases

Purpose Garlic supplementation may be inversely contributed to body weight and composition; however, previous results have been inconsistent. This study aims to evaluate the effect of garlic supplementation on body weight and composition using a systematic review and meta-analysis. Design/methodology/approach Online databases of PubMed, ISI Web of Science, Scopus and Google Scholar were searched up to January 2020. The random-effects model was used to calculate the effect sizes of the included studies. The risk of bias of included studies was assessed using the Cochrane collaboration’s tool. Besides, the NutriGrade scoring system was applied to judge the credibility of the evidence. Findings In total, 18 studies (with 1,250 participants) were included in the meta-analysis. The pooled analysis revealed that garlic supplementation has a significant increase in body weight [weighted mean difference (WMD) = 0.31 Kg, 95% CI: 0.09, 0.53 Kg, P = 0.005, n = 12 effect sizes]. Waist circumference (WC) does remarkably reduce [WMD = −1.28 cm, 95% CI: −2.08, −0.47 cm, P = 0.002, n = 4 effect size]. However, body mass index, body fat percent and fat-free mass do not dramatically change (P > 0.05). Notably, the pooled analyses on body weight and WC were sensitive to two included studies. NutriGrade’s score was rated low for this meta-analysis. Originality/value Although garlic supplementation could slightly increase weight and simultaneously might decrease WC, these associations were not strong enough to corroborate the findings. Also, other anthropometric indices do not significantly change. Further well-designed randomized clinical trial studies are needed to confirm the results.

scholarly journals The Effects of Dairy Intake on Insulin Resistance: A Systematic Review and Meta-Analysis of Randomized Clinical Trials

Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 2237 ◽  
Author(s):  
Kristen M. Sochol ◽  
Tanya S. Johns ◽  
Rupinder S. Buttar ◽  
Lovepreet Randhawa ◽  
Edeline Sanchez ◽  
...  
Keyword(s):  
Systematic Review ◽  
Insulin Resistance ◽  
Clinical Trials ◽  
Body Weight ◽  
Waist Circumference ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
P Value ◽  
Low Fat ◽  
Dairy Intake

The incidence of type 2 diabetes mellitus (DM) has increased in the US over the last several years. The consumption of low-fat dairy foods has been linked with decreasing the risk of DM but studies have yet to show a clear correlation. We conducted a systematic review and meta-analysis of randomized clinical trials (RCTs) evaluating the effects of dairy intake on homeostatic model assessment of insulin resistance (HOMA-IR), waist circumference, and body weight. In MEDLINE and Embase, we identified and reviewed 49 relevant RCTs: 30 had appropriate data format for inclusion in the meta-analysis. Using the Review Manager 5 software, we calculated the pooled standardized mean differences comparing dairy dietary interventions to control for our outcomes of interest. For HOMA-IR (794 individuals), we found a mean difference of −1.21 (95% CI −1.74 to −0.67; p-value < 0.00001; I2 = 92%). For waist circumference (1348 individuals), the mean difference was −1.09 cm (95% CI 1.68 to −0.58; p-value < 0.00001; I2 = 94%). For body weight (2362 individuals), the dairy intake intervention group weighed 0.42 kg less than control (p-value < 0.00001; I2 = 92%). Our findings suggest that dairy intake, especially low-fat dairy products, has a beneficial effect on HOMA-IR, waist circumference, and body weight. This could impact dietary recommendations to reduce DM risk.

Efficacy and tolerability of pharmacological interventions on metabolic disturbance induced by atypical antipsychotics in adults: A systematic review and network meta-analysis

2021 ◽  
pp. 026988112110353
Author(s):  
Yewei Wang ◽  
Dandan Wang ◽  
Jie Cheng ◽  
Xinyu Fang ◽  
Yan Chen ◽  
...  
Keyword(s):  
Body Weight ◽  
Atypical Antipsychotics ◽  
Randomized Clinical Trials ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Metabolic Disturbance ◽  
Pharmacological Interventions ◽  
Glucagon Like Peptide ◽  
Glucagon Like Peptide 1 ◽  
Meta Analyses

Background: There have been a few systematic reviews and conventional meta-analyses reporting effect of drugs on metabolic disturbance induced by atypical antipsychotics (AAPs). However, few of them provided sufficient and comprehensive comparisons between pharmacological interventions. Aims: We aimed to qualitatively compare drugs’ effect on AAPs-induced metabolic abnormalities by using network meta-analysis (NMA). Methods: We searched PubMed, EMBASE, Web of Science, Cochrane Controlled Register of Trials (CENTRAL), and PsycINFO on March 26, 2019. Of 5889 records identified, 61 randomized clinical trials including 3467 participants were included. We estimated weighted mean difference (WMD) and odds ratio (OR) using NMA. We assessed the risk of bias of individual studies with the Review Manager 5.3. Primary outcomes included change of body weight and body mass index (BMI). Secondary outcomes included change of other cardiometabolic risk factors, acceptability, and tolerability. Results: For body weight, topiramate (WMD −5.4, 95% CI −7.12 to −3.68), zonisamide (−3.44, 95% CI −6.57 to −0.36), metformin (−3.01, 95% CI −4.22 to −1.83), glucagon-like peptide-1 receptor agonists (GLP-1RAs) (−3.23, 95% CI −5.47 to −0.96), and nizatidine (−2.14, 95% CI −4.01 to −0.27) were significantly superior to placebo. Results regarding to BMI were similar to that of body weight. With respect to tolerability, only topiramate (OR 24, 95% CI 3.15 to 648) was inferior to placebo. Conclusions: Considering both efficacy and tolerability, evidence from this NMA indicates zonisamide, metformin, GLP-1RAs, and nizatidine in adults should be the first-line treatment for alleviating AAPs-induced weight gain or elevated BMI.

Efficacy of acupuncture in the management of fatigue related to breast cancer antineoplastic treatment: a systematic review

2019 ◽  
Vol 9 (2) ◽  
pp. 264-272
Author(s):  
Ana Carolina Moraes Costa ◽  
Alena Peixoto Medrado
Keyword(s):  
Breast Cancer ◽  
Systematic Review ◽  
Clinical Trials ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Scientific Evidence ◽  
Total Sample ◽  
Inclusion Criteria ◽  
Antineoplastic Treatment

INTRODUCTION: Breast cancer is the most prevalent cancer among women worldwide. Similar to chemotherapy, antineoplastic treatment is associated with many side effects, with fatigue being one of the most common. It is important to investigate potential treatments, especially non-pharmacological alternatives, to control symptoms that directly affect women’s quality of life. OBJECTIVE: The objective of this study was to provide scientific evidence to verify the efficacy of acupuncture in the management of fatigue in patients with breast cancer. METHODS: This study involved a systematic review based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) methodology. Randomized clinical trials published in indexed scientific journals were compiled. The literature search was performed using the electronic databases, PubMed, PEDro, and BIREME, using the descriptors ‘breast cancer’, ‘fatigue’, ‘acupuncture’, and ‘randomized trial’. Inclusion criteria included fully available online articles that were classified as randomised clinical trials published from 2012 to 2017 in either English or Portuguese. Study eligibility was based on the Population, Intervention, Control, Outcome, and Study (PICO) design criteria, in which the (1) population included women 18–65 years of age with breast cancer, (2) intervention was acupuncture, (3) comparison referred to standard care or sham acupuncture, and (4) outcome was the evaluation of fatigue. The PEDro scale was applied to evaluate the quality of the studies. WebQualis was also used to evaluate the quality of the journals of the selected articles. RESULTS: In total, 66 articles were selected, but only four fulfilled all inclusion criteria, giving a total sample size of 620 women. All trials evaluated the effect of acupuncture on fatigue and other symptoms related to the treatment of breast cancer with different treatment durations. Three articles reported statistically significant results, and all articles described clinical improvement in fatigue after the application of acupuncture. The average PEDro score of the manuscripts was 6.25. All articles were published in non-Brazilian journals with WebQualis scores that ranged from B2 to A1. CONCLUSION: Scientific evidence confirms the efficacy of acupuncture in the management of fatigue reported by women with breast cancer. Acupuncture was effective in reducing fatigue in the studies selected for this review.

scholarly journals Whole grain food diet slightly reduces cardiovascular risks in obese/overweight adults: a systematic review and meta-analysis

2019 ◽  
Author(s):  
Weihao Wang ◽  
Jianan Li ◽  
Xiaoxi Chen ◽  
Miao Yu ◽  
Qi Pan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Blood Pressure ◽  
Body Weight ◽  
Waist Circumference ◽  
Food Consumption ◽  
Meta Analysis ◽  
Control Group ◽  
Whole Grain ◽  
Cardiovascular Risks ◽  
Overweight Adults

Abstract Background: The effects of whole grain diet on cardiovascular risks in obese and overweight adults is not well established. Our goal was to conduct a systematic review and meta-analysis on the effect of whole grain diet on cardiovascular risks in obese/overweight adults. Methods: PubMed, Embase and Cochrane were systematically scanned for randomized controlled trials (RCTs), and studies were selected based on certain inclusion and exclusion criteria. The primary outcome was the effectiveness of whole grain food consumption in reducing body weight. The secondary outcomes were the effect of whole grain food consumption on cardiovascular disease (CVD) risk factors including plasma low-density lipoprotein cholesterol (LDL-C), insulin resistance index, blood pressure, body mass index (BMI), C-reactive protein (CRP), and waist circumference in obese/overweight adults. Results: Our results showed that whole grain consumption was associated with lower body weight (mean difference (MD) =-0.5, 95% confidence intervals (CI) [-0.74, 0.25], I2 = 35%, P < 0.0001) and lower CRP (MD =-0.36, 95% CI [-0.54, -0.18], I2=69%, P<0.0001), compared with the control group. However, there were no significant differences in LDL-C (MD =-0.08, 95% CI [-0.16, 0.00], I2 = 27%, P = 0.05), waist circumference (MD=-0.12, 95% CI [-0.92, 0.68], I2=44%, P=0.76), systolic blood pressure (MD=-0.11, 95% CI [-1.55, 1.33], I2=3%, P=0.88), diastolic blood pressure (MD=-0.44, 95% CI [-1.44, 0.57], I2=15%, P=0.39), and fasting glucose (MD=-0.05, 95% CI [-0.12, 0.01], I2=31%, P=0.11) between the two groups. Conclusion: This study suggests that whole grain food consumption can slightly reduce body weight and CRP in obese/overweight population.

Sign in / Sign up

Export Citation Format

Share Document