scholarly journals Protective Effects of Melatonin against Severe Burn-Induced Distant Organ Injury: A Systematic Review and Meta-Analysis of Experimental Studies

Antioxidants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1196
Author(s):  
Dewan Md. Sumsuzzman ◽  
Jeonghyun Choi ◽  
Zeeshan Ahmad Khan ◽  
Yonggeun Hong
Keyword(s):  
Oxidative Stress ◽  
Systematic Review ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Wound Response ◽  
Mean Difference ◽  
Organ Injury ◽  
Control Group ◽  
Severe Burn ◽  
Distant Organ

Extensive burns result in a local wound response and distant-organ injury (DOI) caused by oxidative-stress and inflammation. Melatonin (MT) shows promise in alleviating oxidative-stress and inflammation, but its role in thermal injury is largely unexplored. The present systematic review and meta-analysis were designed to assess the effects of MT on oxidative-stress and inflammatory markers against severe burn-induced DOI. Mean difference (MD)/standard mean difference (SMD) with 95% confidence interval (CI) were estimated using fixed-effect/random-effects models. Eighteen experimental studies met the inclusion criteria. Compared with the control group, MT significantly decreased the levels of malondialdehyde (SMD, −1.03; 95% CI, −1.30, −0.76, p < 0.00001) and 4-hydroxynonenal (MD, −1.06; 95% CI, −1.57, −0.56, p < 0.0001). Additionally, MT increased the levels of glutathione (SMD, 1.94; 95% CI, 1.27, 2.61, p < 0.00001) and superoxide-dismutase (SMD, 0.76; 95% CI, 0.08, 1.45, p = 0.03). Finally, MT significantly decreased the levels of tumor necrosis factor-α (SMD, −1.34; 95% CI, −1.92 to −0.77; p < 0.00001) and C-reactive protein (MD, −12.67; 95% CI, −16.72 to −8.62; p < 0.00001). Meta-analysis indicates that severe burn followed by immediate MT (10 mg/kg) intervention shows significant beneficial effects after 24-h against DOI by regulating oxidative-stress and the inflammatory response.

scholarly journals Systematic Review and Meta-Analysis of the Efficacy of MLC901 (NeuroAiD IITM) for Acute Ischemic Brain Injury in Animal Models

2021 ◽  
Vol 26 ◽  
pp. 2515690X2110392
Author(s):  
I. G. M. Aswin R. Ranuh ◽  
Gadis Meinar Sari ◽  
Budi Utomo ◽  
Nur Setiawan Suroto ◽  
Asra Al Fauzi
Keyword(s):  
Systematic Review ◽  
Brain Injury ◽  
Animal Models ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Mean Difference ◽  
Control Group ◽  
Ischemic Brain Injury ◽  
Ischemic Brain ◽  
Infarction Volume

Introduction. Moleac (MLC) 901 is a traditional Chinese medication approved by the Sino Food and Drug Administration in 2001 for treating stroke. This study aims to analyze the efficacy of MLC901 in animal stroke models after medial cerebral artery occlusion (MCAO). Methods. Literature selection was performed according to the guidelines of the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA) 2015. Inclusion criteria for the experimental studies were the use of animal models, publication in English between 1990 and 2020, information regarding the intervention technique used, and outcomes regarding the efficacy of MLC901 administration. Results. MLC901 administration resulted in significantly less infarction volume by a mean difference of 17.17 compared to the control group (p < .00001). The MLC901 group resulted in significant improvement in 5-bromo-20-deoxyuridine (BrdU)-positive cells expression by a mean difference of 662.79 (p < .00001) and neurological function, which was indicated by a mean difference in the Bederson Neurological Outcome Score of 1.40 (p < .00001). Conclusions. MLC901 administration in an animal stroke model resulted in a better reduction in infarction volume and improvement in BrdU expression and neurologic function. These data could help in further determining the efficacy of MLC901 for acute ischemic brain injury in humans.

scholarly journals Tolerability of statin-based management of patients with a history of statin-associated muscle symptoms: protocol for a systematic review

BMJ Open ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. e052341
Author(s):  
Fanny Villoz ◽  
Christina Lyko ◽  
Cinzia Del Giovane ◽  
Nicolas Rodondi ◽  
Manuel R Blum
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Mean Difference ◽  
Control Group ◽  
Cochrane Central Register ◽  
Eligibility Criteria ◽  
Clinical Issue ◽  
Standard Data ◽  
Evaluation Approach ◽  
History Of

IntroductionStatin-associated muscle symptoms (SAMSs) are a major clinical issue in the primary and secondary prevention of cardiovascular events. Current guidelines advise various approaches mainly based on expert opinion. We will lead a systematic review and meta-analysis to explore the tolerability and acceptability and effectiveness of statin-based therapy management of patients with a history of SAMS. We aim to provide evidence on the tolerability and different strategies of statin-based management of patients with a history of SAMS.Methods and analysisWe will conduct a systematic review of randomised controlled trials (RCTs) and non-randomised studies with a control group. We will search in Data sources MEDLINE, EMBASE, Cochrane Central Register of Controlled Clinical Trials, Scopus, Clinicaltrials.gov and Proquest from inception until April 2021. Two independent reviewers will carry out the study selection based on eligibility criteria. We will extract data following a standard data collection form. The reviewers will use the Cochrane Collaboration’s tools and Newcastle-Ottawa Scale to appraise the study risk of bias. Our primary outcome will be tolerability and our secondary outcomes will be acceptability and effectiveness. We will conduct a qualitative analysis of all included studies. In addition, if sufficient and homogeneous data are available, we will conduct quantitative analysis. We will synthesise dichotomous data using OR with 95% CI and continuous outcomes by using mean difference or standardised mean difference (with 95% CI). We will determine heterogeneity visually with forest plots and quantitatively with I2 and Q-test. We will summarise the confidence in the quantitative estimate by using Grading of Recommendations Assessment, Development and Evaluation approach.Ethics and disseminationAs a systematic review of literature without collection of new clinical data, there will be no requirement for ethical approval. We will disseminate findings through peer-reviewed publications.PROSPERO registration numberCRD42020202619.

Mesenchymal Stem Cell Therapy for Acetaminophen-Related Liver Injury: A Systematic Review and Meta-Analysis of Experimental Studies in Vivo

2021 ◽  
Vol 16 ◽  
Author(s):  
Li Wang ◽  
Yiwen Zhang ◽  
Jiajun Zhong ◽  
Yuan Zhang ◽  
Shuisheng Zhou ◽  
...  
Keyword(s):  
Systematic Review ◽  
Stem Cell ◽  
Liver Injury ◽  
Mesenchymal Stem Cell ◽  
Small Sample Size ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Small Sample ◽  
Control Group

Objective: The efficacy of mesenchymal stem cell (MSC) therapy in acetaminophen-induced liver injury has been investigated in animal experiments, but individual studies with a small sample size cannot be used to draw a clear conclusion. Therefore, we conducted a systematic review and meta-analysis of preclinical studies to explore the potential of using MSCs in acetaminophen-induced liver injury. Methods: Eight databases were searched for studies reporting the effects of MSCs on acetaminophen hepatoxicity. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were used. SYRCLE’s risk of bias tool for animal studies was applied to assess the methodological quality. A meta-analysis was performed by using RevMan 5.4 and STATA/SE 16.0 software. Results: Eleven studies involving 159 animals were included according to PRISMA statement guidelines. Significant associations were found for MSCs with the levels of alanine transaminase (ALT) (standardized mean difference (SMD) − 2.58, p < 0.0001), aspartate aminotransferase (AST) (SMD − 1.75, p = 0.001), glutathione (GSH) (SMD 3.7, p < 0.0001), superoxide dismutase (SOD) (SMD 1.86, p = 0.022), interleukin 10 (IL-10) (SMD 5.14, p = 0.0002) and tumor necrosis factor-α (TNF-α) (SMD − 4.48, p = 0.011) compared with those in the control group. The subgroup analysis showed that the tissue source of MSCs significantly affected the therapeutic efficacy (p < 0.05). Conclusion: Our meta-analysis results demonstrate that MSCs could be a potential treatment for acetaminophen-related liver injury.

scholarly journals Disordered leptin and ghrelin bioactivity in adolescent idiopathic scoliosis (AIS): a systematic review and meta-analysis

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Qi Wang ◽  
Chi Wang ◽  
Wenhao Hu ◽  
Fanqi Hu ◽  
Weibo Liu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Leptin Receptor ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Mean Difference ◽  
Control Group ◽  
Mineral Density ◽  
Soluble Leptin Receptor

Abstract Background Adolescents with scoliosis consistently demonstrate lower body weight, lean muscle mass, and bone mineral density than healthy adolescent counterparts. Recent studies have focused on understanding how leptin and ghrelin signaling may play a role in adolescent idiopathic scoliosis (AIS). In our current study, we aim to evaluate the serum levels of leptin, soluble leptin receptor (sOB-R), and ghrelin in AIS patients through systematic review and meta-analysis. Methods We conducted our systematic review by searching the keywords in online databases including PubMed, Embase, Cochrane, Elsevier, Springer, and Web of Science from the time of database inception to January 2020. Inclusion criteria were studies that measure leptin, soluble leptin receptor (sOB-R), and ghrelin levels in AIS patients. Selection of studies, assessment of study quality, and data extraction were performed by two reviewers independently. Then, data was analyzed to calculate the mean difference and 95% confidence interval (CI). Results Seven studies concerning leptin/sOB-R and three studies concerning ghrelin were qualified for meta-analysis (one study concerning both leptin and ghrelin). Serum leptin of patients with AIS were significantly lower when compared with healthy controls, with the weighted mean difference (WMD) of − 0.95 (95% CI − 1.43 to − 0.48, p < 0.0001) after reducing the heterogeneity using six studies for meta-analysis, while sOB-R and ghrelin level was significantly higher in AIS group when compared with control group, with the WMD of 2.64 (95% CI 1.60 to 3.67, p < 0.001) and 1.42 (95% CI 0.48 to 2.35, p = 0.003), respectively. Conclusion Our current meta-analysis showed that serum level of leptin in AIS patients was significantly lower when compared with control subjects, while serum sOB-R and ghrelin levels were significantly higher in AIS patients. More clinical studies are still required to further validate the predictive value of leptin or ghrelin for the curve progression for AIS patients.

Impact of Image-and-text and Text-only Health Warning Labels on Selection and Consumption of Food and Alcohol Products: Systematic Review with Meta-analysis

2019 ◽  
Author(s):  
Natasha Clarke ◽  
Emily Pechey ◽  
Daina Kosīte ◽  
Laura M König ◽  
Eleni Mantzari ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Control Group ◽  
Warning Labels ◽  
Health Warning ◽  
Alcoholic Drinks ◽  
Randomised Controlled ◽  
The Impact ◽  
Selection Of

Reducing harmful consumption of food (including non-alcoholic drinks) and alcoholic drinks would prevent much disease. Evidence from tobacco control shows that placing health warning labels (HWLs) on these products reduces their selection and consumption. A systematic review with meta-analysis was conducted using Cochrane methods to assess the impact on selection (including hypothetical selection) or consumption of food or alcoholic drinks with image-and-text (sometimes termed ‘pictorial’) and text-only HWLs placed on these products. Studies were required to be randomised or quasi-randomised controlled trials. Fourteen studies were included, three on alcohol, eleven on food. For our primary outcomes, eleven studies measured selection and one measured consumption (two measured only other secondary outcomes). Meta-analysis of twelve comparisons from nine studies (n=12,635) found HWLs reduced selection of the targeted product compared to a control group with no HWL (RR=0.74 (95% CI 0.68 to 0.80)), with participants 26% less likely to choose a product displaying a HWL. A planned subgroup analysis suggested a larger effect on selection of image-and-text HWLs (RR=0.65 (95% CI 0.54 to 0.80)) than text-only HWLs (RR=0.79 (95% CI 0.74 to 0.85)), but this difference was not statistically significant. These findings suggest significant potential for HWLs to reduce selection of food and alcohol, but all experimental studies to date were conducted in laboratory or online settings with outcomes assessed immediately after a single exposure. Studies in field and more naturalistic laboratory settings are urgently needed to estimate the potential effects of HWLs on food and alcohol.

scholarly journals The Association of Oxidative Stress Status with Open-Angle Glaucoma and Exfoliation Glaucoma: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Binghua Tang ◽  
Shengjie Li ◽  
Wenjun Cao ◽  
Xinghuai Sun
Keyword(s):  
Oxidative Stress ◽  
Systematic Review ◽  
Aqueous Humor ◽  
Open Angle Glaucoma ◽  
Meta Analysis ◽  
Control Group ◽  
Open Angle ◽  
Exfoliation Glaucoma ◽  
Oxidative Stress Status ◽  
Mean Differences

Purpose. To systematically evaluate the associations between oxidative stress status and different types of glaucoma. Design. Systematic review and meta-analysis. Methods. We searched PubMed, EMBASE, and the Web of Science for randomized controlled trials written in the English language between January 1, 1990, and November 30, 2016. A random effects model was used to estimate oxidative stress status along with weighted mean differences and 95% confidence intervals (CIs). A funnel plot analysis and Egger’s test were performed to assess potential publication bias. Main outcome measures. Oxidative stress status was abnormal and different in patients with OAG (open-angle glaucoma) and EXG (exfoliation glaucoma). Results. Blood TAS (total antioxidant status) was lower in the OAG group than in the control group, with a mean difference of 0.580 mmol/L (p<0.0001, 95% CI = −0.668 to −0.492). The aqueous humor SOD (superoxide dismutase), GPX (glutathione peroxidase), and CAT (catalase) levels were higher in the OAG group than in the control group, with mean differences of 17.989 U/mL (p<0.0001, 95% CI = 14.579–21.298), 12.441 U/mL (p<0.0001, 95% CI = 10.423–14.459), and 1.229 fmol/mL (p=0.042, 95% CI = 0.043–2.414), respectively. Blood TAS was lower in the EXG group than in the control group, with a mean difference of 0.262 mmol/L (p<0.0001, 95% CI = −0.393 to −0.132). However, there were no differences in blood TOS and aqueous humor TOS between the EXG group and the control group. Conclusions. This meta-analysis indicates that OAG patients had a lower TAS in the blood and higher levels of SOD, GPX, and CAT in the aqueous humor, while EXG patients only had a decreased TAS in the blood.

scholarly journals The effect of grape products containing polyphenols on oxidative stress: a systematic review and meta-analysis of randomized clinical trials

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Sahar Sarkhosh-Khorasani ◽  
Zohreh Sadat Sangsefidi ◽  
Mahdieh Hosseinzadeh
Keyword(s):  
Oxidative Stress ◽  
Systematic Review ◽  
Confidence Interval ◽  
Randomized Clinical Trials ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Mean Difference ◽  
Weighted Mean ◽  
Stress Markers ◽  
Total Antioxidant

Abstract Background The literature showed that Grape Products Containing Polyphenols (GPCP) had anti-oxidant activity. However, the effects of GPCP on different biomarkers of oxidative stress are still controversial. In this regard, this systematic review and meta-analysis aimed to evaluate the effect of Grape Products Containing Polyphenols (GPCP) intake on oxidative stress markers. Methods PubMed, Scopus, Web of Science, and Google Scholar data bases were searched up to August 20, 2020. A random-effects model, weighted mean difference (WMD), and 95% confidence interval (CI) were applied for data analysis. Meta-analysis was conducted over 17 eligible RCTs with a total of 633 participants. The study registration number is CRD42019116696. Results A significant increase was observed in Total Antioxidant Capacity (TAC) (weighted mean difference (WMD) = 1.524 mmol/L, 95% confidence interval (CI): 0.83, 2.21). Intake of GPCP enhanced Superoxide Dismutase (SOD) (WMD = 0.450 mmol/L, 95% CI: 0.23, 0.66), TAC (WMD = 2.829 mmol/L, 95% CI: 0.13, 5.52), and Oxygen Radical Absorbance Capacity (ORAC) (WMD = 0.524 μmol/L, 95% CI: 0.42, 0.62) among healthy participants. Higher GPCP doses increased SOD (WMD = 0.539 U/mgHb, 95% CI: 0.24, 0.82) and ORAC (WMD = 0.377 μmol/L, 95% CI: 0.08, 0.67), whereas longer intervention periods enhanced ORAC (WMD = 0.543 μmol/L, 95% CI: 0.43, 0.64). Conclusion GPCP intake may partly improve status of oxidative stress, but further well-designed trials are required to confirm these results.

scholarly journals Effectiveness of Acupuncture in Treatment of Simple Obesity in Animal Models: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-36 ◽  
Author(s):  
Xiao-lin Fan ◽  
Mei-ling Yu ◽  
Shu-Ping Fu ◽  
Yi Zhuang ◽  
Sheng-feng Lu
Keyword(s):  
Systematic Review ◽  
Animal Models ◽  
Publication Bias ◽  
Meta Analysis ◽  
Animal Experiments ◽  
Experimental Studies ◽  
Control Group ◽  
Human Beings ◽  
Standard Mean Difference ◽  
Simple Obesity

Background. Simple obesity has become a global risk to health of human beings. Acupuncture, as one of traditional Chinese medicine therapies, has been widely used in obesity treatment in recent years. However, the individual heterogeneity which makes acupuncture’s efficiency unstable leads to some controversy. So more evidence-based results are necessary to judge the effectiveness of acupuncture in treatment of simple obesity. Compared with clinical trials, animal experiments are controllable, and the underlying mechanism is more likely to be explored. Last but not the least, more and more experimental studies on acupuncture for animal obesity have been published. Therefore, we conducted the systematic review and meta-analysis to evaluate the effectiveness of acupuncture in treating simple obesity in animal experiments. Methods. Randomized Controlled Trials (RCTs) on acupuncture for simple obesity animal models were searched from six databases: PubMed, MEDLINE, CNKI, VIP, WanFang Date, and CMB from inception to February 2017 and updated on April 12, 2019. RevMan 5.3 software was used for meta-analysis. Treatment effects were summarized as relative risk (RR) and Standard mean difference (SMD) with 95% of confidence interval (CI). Results. A total of 108 trials involving 5731 rats were included. Meta-analysis showed that acupuncture had better effect on reducing weight (SMD -2.60, 95%CI: -2.93 to -2.26, p<0.00001) and Lee’s index (SMD -2.62, 95%CI:-3.18 to -2.06, p<0.00001) compared with control group. However, the methodological quality of included studies was generally poor. Details of blinding were not reported in most studies. In spite of high heterogeneity being observed on the merged data, sensitivity analysis using the leave-one-out approach, subgroup analysis based on different acupuncture techniques, and rat strains and meta-regression all failed to find the sources of heterogeneity. The asymmetric funnel plot suggested publication bias. Besides, adverse events were not reported in any reports. Conclusions. Our review provided positive evidence of acupuncture for simple obesity. Unfortunately, none of the firm conclusions can be drawn due to methodological flaws, high heterogeneity, and publication bias. More high-quality trials are needed in future to get objective conclusions.

scholarly journals Infection Control Education Programs for Nursing Students: A Systematic Review

2021 ◽  
Vol 28 (2) ◽  
pp. 237-248
Author(s):  
Hayoung Park ◽  
Yoojin Kim
Keyword(s):  
Systematic Review ◽  
Nursing Students ◽  
Infection Control ◽  
Meta Analysis ◽  
Mean Difference ◽  
Control Group ◽  
Education Programs ◽  
Quasi Experimental ◽  
The Mean ◽  
Control Education

Purpose: The purpose of this study was to use a systematic review to investigate how infection control education has been designed, implemented and evaluated in undergraduate programs in nursing.Methods: This study was conducted base on the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA). To search studies related to infection control education programs, Ovid-EMBASE, CINAHL, Pubmed, KoreaMed, KMBASE and KISS were used. A total of 2,306 studies were identified, and 13 studies were selected for final analysis.Results: Ten studies out of 13 were designed as pre-post, no control group, quasi-experimental study designs. Nosocomial infection and standard precautions related infection control education were the most frequently selected topics and online was the most common teaching-learning method. The infection control education programs showed significant effect on knowledge and attitude. The mean difference of 7 studies for knowledge was 5.1 (95% CI: 2.36, 8.67, p<.001) and the mean difference of 4 studies for attitude was 3.34 (95% CI: 0.12, 6.55, p<.001).Conclusion: The results of this study indicate that infection control education effectively improves the knowledge, attitude and compliance of nursing students. Therefore, it is necessary to develop more specific educational programs that can reflect the changes of the times and the demands of clinical nurses.

scholarly journals Evaluation of the Effect of the Inspired Oxygen Fraction on Blood Oxygenation during Inhalant Anaesthesia in Horses: A Systematic Review with Meta-Analysis

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2245
Author(s):  
Ioannis Savvas ◽  
Kiriaki Pavlidou ◽  
Christina Braun ◽  
Stijn Schauvliege ◽  
Francesco Staffieri ◽  
...  
Keyword(s):  
Systematic Review ◽  
Oxygen Tension ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Arterial Oxygen Tension ◽  
Blood Oxygenation ◽  
Mean Difference ◽  
Arterial Oxygen ◽  
Inhalation Anaesthesia ◽  
Inspired Oxygen

In anaesthetized horses, pronounced ventilation/perfusion mismatching often occurs. Several authors have investigated the effect of lower inspired oxygen fractions (FiO2) to reduce formation of absorption atelectasis. This systematic review compared the effects of low (<0.6) and high (>0.8) FiO2 on the arterial oxygen tension (PaO2), the alveolar-to-arterial oxygen tension difference (P(A-a)O2), and the PaO2/FiO2 ratio in horses during inhalation anaesthesia. Using the Systematic Review Protocol for Animal Intervention Studies, four experimental and one clinical investigations were deemed suitable for inclusion. A meta-analysis was performed on the four experimental studies. The PaO2 was significantly lower (p = 0.0007, mean difference −23.54 kPa, 95% CI −37.18, −9.90) with a lower FiO2. However, the P(A-a)O2 was also significantly lower (p < 0.00001, mean difference −20.80 kPa, 95% CI −26.28, −15.32) when using a low FiO2. For the PaO2/FiO2 ratio, only one study fitted the inclusion criteria, so no meta-analysis was performed. It is concluded that, while only a limited number of studies are available, the use of a higher FiO2 in horses during inhalation anaesthesia will result in higher levels of PaO2, but also a larger P(A-a)O2 difference. Further studies are needed to increase the level of evidence on this subject.

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