scholarly journals Association between Dichlorodiphenyldichloroethylene in the Serum and Adipose Tissue with Type 2 Diabetes: A Systematic Review and Meta-Analysis

2016 ◽  
Vol 9 (2) ◽  
pp. 43 ◽  
Author(s):  
Yadolah Fakhri ◽  
Amir Sheikhmohammadi ◽  
Abotaleb Bay ◽  
Yahya Zandsalimi ◽  
Bigard Moradi ◽  
...  
Keyword(s):  
Systematic Review ◽  
Type 2 Diabetes ◽  
Odds Ratio ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cross Sectional ◽  
Effect Model ◽  
Cross Sectional Studies

<p>The number of diabetics is growing every day. In addition to the main risk factors of type 2 diabetes (obesity, age and etc.) other environmental risk factors such as persistent organic pollutants are also considered. Dichlorodiphenyldichloroethylene is one of the persistent organic pollutants which are produced by the pesticide DDT metabolized and its effects of type 2 diabetes are taken into consideration of many investigators. Inconsistency in the results caused to try to achieve a detailed assessment of the effect of dichlorodiphenyldichloroethylene on type 2 diabetes by systematic review and meta-analysis. In this review study after a systematic review, finally 6 prospective and 7 cross-sectional studies were obtained. After approving the heterogeneity of the studies based on random effect model, it was calculate the mean of odds ratio. Meta-analysis of the pooled random effects of Dichlorodiphenyldichloroethylene was done with type 2 diabetes in prospective and cross-sectional studies. In prospective studies, the highest and lowest odds ratio was 6.1(95%CI: 1.36-27.27) and 1.01(95%CI: 0.59-1.70) and cross-sectional studies was 5.5(95%CI: 1.2-25.10) and 0.61(95%CI: 0.32-1.15), respectively. In the all studies (sum of prospective and cross-sectional), in the random effect model odds ratio was 1.52 (95%CI: 1.26-1.84) and heterogeneity was 52.1% (ρ<sub>heterogeneity</sub>=0.009). Increasing concentration of Dichlorodiphenyldichloroethylene in the serum and adipose tissue increased the risk of type 2 diabetes significantly (P&lt;0.001). The results of this review study support the role of dichlorodiphenyldichloroethylene as an environmental risk factor for type 2 diabetes.</p>

scholarly journals Association between body size, weight change and depression: systematic review and meta-analysis

2017 ◽  
Vol 211 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Sun Jae Jung ◽  
Hyung-taek Woo ◽  
Sooyoung Cho ◽  
Kyounghoon Park ◽  
Seokhun Jeong ◽  
...  
Keyword(s):  
Systematic Review ◽  
Body Size ◽  
Weight Change ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cross Sectional ◽  
Hazard Ratios ◽  
Effect Model ◽  
Subgroup Analyses

BackgroundThe association between body size, weight change and depression has not been systematically summarised, especially for individuals who are underweight.AimsTo conduct a systematic review and a meta-analysis to examine the association between indices of body size, weight change and depression.MethodA total of 183 studies were selected. Fully adjusted hazard ratios (HRs) or odds ratios (ORs) were extracted. A total of 76 studies contributed to data synthesis with a random-effect model, and subgroup analyses were conducted to evaluate the effect of potential moderators.ResultsIn cohort studies, underweight at baseline increased the risk of subsequent depression (OR = 1.16, 95% CI 1.08–1.24). Overweight (BMI 25–29.9 kg/m2) showed no statistically significant relationship with depression overall; however, the subgroup analyses found different results according to gender (men: OR = 0.84, 95% CI 0.72–0.97, women: OR = 1.16, 95% CI 1.07–1.25). In cross-sectional designs, obesity with BMI >40kg/m2 showed a greater pooled odds ratio than obesity with BMI >30kg/m2.ConclusionsBoth underweight and obesity increase the risk of depression. The association between overweight and depression differs by gender.

scholarly journals Alteration of Postural Balance in Patients with Fibromyalgia Syndrome—A Systematic Review and Meta-Analysis

Diagnostics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 127
Author(s):  
David Núñez-Fuentes ◽  
Esteban Obrero-Gaitán ◽  
Noelia Zagalaz-Anula ◽  
Alfonso Javier Ibáñez-Vera ◽  
Alexander Achalandabaso-Ochoa ◽  
...  
Keyword(s):  
Systematic Review ◽  
Postural Balance ◽  
Fibromyalgia Syndrome ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Healthy Controls ◽  
Functional Balance ◽  
Sensory Organization ◽  
Effect Model

Balance problems are one of the most frequent symptoms in patients with Fibromyalgia Syndrome (FMS). However, the extent and nature of this balance disorder are not known. The objective of this work was to determine the best evidence for the alteration of postural balance in patients with FMS and analyze differences with healthy controls. To meet this objective, a systematic review with meta-analysis was performed. A bibliographical search was carried out in PubMed Medline, Scopus, Web of Science, CINAHL and SciELO. Observational studies that assessed postural balance in patients with FMS compared to healthy subjects in baseline conditions, were selected. In a random-effect model, the pooled effect was calculated with the Standardized Mean Difference (SMD) and its 95% confidence interval (CI). Nineteen studies reporting data of 2347 participants (95% female) were included. FMS patients showed poor balance with a large effect on static (SMD = 1.578; 95% CI = 1.164, 1.992), dynamic (SMD = 0.946; 95% CI = 0.598, 1.294), functional balance (SMD = 1.138; 95% CI = 0.689, 1.588) and on balance confidence (SMD = 1.194; 95% CI = 0.914, 1.473). Analysis of the Sensory Organization Test showed large alteration of vestibular (SMD = 1.631; 95% CI = 0.467, 2.795) and visual scores (SMD = 1.317; 95% CI = 0.153, 2.481) compared to healthy controls. Patients with FMS showed worse scores for different measures of postural balance compared to healthy controls. Concretely, FMS patients appear to have poor vestibular and visual scores with a possible somatosensory dependence.

scholarly journals Magnitude and determinants of neural tube defect in Africa: a systematic review and meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Daniel Atlaw ◽  
Yohannes Tekalegn ◽  
Biniyam Sahiledengle ◽  
Kenbon Seyoum ◽  
Damtew Solomon ◽  
...  
Keyword(s):  
Systematic Review ◽  
Neural Tube ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Folic Acid Supplementation ◽  
Maternal Exposure ◽  
X Ray ◽  
Effect Model ◽  
Pooled Prevalence

Abstract Background Neural tube defects (NTDs) are a group of disorders that arise from the failure of the neural tube close between 21 and 28 days after conception. About 90% of neural tube defects and 95% of death due to these defects occurs in low-income countries. Since these NTDs cause considerable morbidity and mortality, this study aimed to determine the prevalence and associated factors of NTDs in Africa. Methods The protocol of this study was registered in the International Prospective Register of Systematic Reviews (PROSPERO number: CRD42020149356). All major databases such as PubMed/MEDLINE, EMBASE, CINAHL, Web of Science, African Journals Online (AJOL), and Google Scholar search engine were systematically searched. A random-effect model was used to estimate the pooled prevalence of NTDs in Africa, and Cochran’s Q-statistics and I2 tests were used to assess heterogeneity between included studies. Publication bias was assessed using Begg ’s tests, and the association between determinant factors and NTDs was estimated using a random-effect model. Results Of the total 2679 articles, 37 articles fulfilled the inclusion criteria and were included in this systematic review and meta-analysis. The pooled prevalence of NTDs in Africa was 50.71 per 10,000 births (95% CI: 48.03, 53.44). Folic acid supplementation (AOR: 0.40; 95% CI: 0.19–0.85), maternal exposure to pesticide (AOR: 3.29; 95% CI: 1.04–10.39), mothers with a previous history of stillbirth (AOR: 3.35, 95% CI: 1.99–5.65) and maternal exposure to x-ray radiation (AOR 2.34; 95% CI: 1.27–4.31) were found to be determinants of NTDs. Conclusions The pooled prevalence of NTDs in Africa was found to be high. Maternal exposure to pesticides and x-ray radiation were significantly associated with NTDs. Folic acid supplementation before and within the first month of pregnancy was found to be a protective factor for NTDs.

scholarly journals Psychosis in children of separated parents: A systematic review and meta-analysis

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Luis Ayerbe ◽  
María Pérez-Piñar ◽  
Quintí Foguet-Boreu ◽  
Salma Ayis
Keyword(s):  
Systematic Review ◽  
Odds Ratio ◽  
Psychotic Disorders ◽  
Meta Analysis ◽  
Childhood Adversity ◽  
Case Control ◽  
Parental Separation ◽  
Cross Sectional ◽  
Increased Risk ◽  
Cross Sectional Studies

Abstract Background. Parental separation is a very common childhood adversity. The association between other adverse childhood experiences and an increased risk of psychosis has been reported. However, the evidence on the risk of psychosis for children of separated parents is limited. In this systematic review, cohort, case–control, and cross-sectional studies, comparing the risk of psychotic disorders for people with and without separated parents, were searched, critically appraised, and summarized. Methods. Studies were searched in PubMed, EMBASE, PsycINFO, and the Web of Science, from database inception to September 2019. A meta-analysis, using random-effects models, was undertaken to obtain pooled estimates of the risk of psychosis among participants with separated parents. Results. Twelve studies, with 305,652 participants from 22 countries, were included in the review. A significantly increased risk of psychosis for those with separated parents was observed, with a pooled odds ratio: 1.53 (95% confidence interval [CI]: 1.29–1.76), p < 0.001. The association remained significant when cohort, case–control, and cross-sectional studies were analyzed separately. The five cohort studies included in this review showed and increased risk of psychosis with odds ratio: 1.47 (95% CI: 1.26–1.69), p < 0.001. Conclusions. Parental separation is a common childhood adversity associated with an increased risk of psychosis. Although the risk for an individual child of separated parents is still low, given the high proportion of couple that separate, the increased rates of psychosis may be substantial in the population. Further studies on the risk of psychosis in those with separated parents, and the explanatory factors for this association, are required.

scholarly journals Circulating calcium levels and the risk of type 2 diabetes: a systematic review and meta-analysis

2019 ◽  
Vol 122 (04) ◽  
pp. 376-387 ◽  
Author(s):  
J. Zhu ◽  
P. Xun ◽  
J. C. Bae ◽  
J. H. Kim ◽  
D. J. Kim ◽  
...  
Keyword(s):  
Systematic Review ◽  
Type 2 Diabetes ◽  
Cohort Studies ◽  
Glucose Homeostasis ◽  
De Novo ◽  
Meta Analysis ◽  
Cross Sectional ◽  
Relative Risks ◽  
Ca Homeostasis

AbstractAbnormal Ca homeostasis has been associated with impaired glucose metabolism. However, the epidemiological evidence is controversial. We aimed to assess the association between circulating Ca levels and the risk of type 2 diabetes mellitus (T2DM) or abnormal glucose homeostasis through conducting a systematic review and meta-analysis. Eligible studies were identified by searching electronic database (PubMed, Embase and Google Scholar) and related references withde novoresults from primary studies up to December 2018. A random-effects meta-analysis was performed to estimate the weighted relative risks (RR) and 95 % CI for the associations. The search yielded twenty eligible publications with eight cohort studies identified for the meta-analysis, which included a total of 89 165 participants. Comparing the highest with the lowest category of albumin-adjusted serum Ca, the pooled RR was 1·14 (95 % CI 1·05, 1·24) for T2DM (n51 489). Similarly, serum total Ca was associated with incident T2DM (RR 1·25; 95 % CI 1·10, 1·42) (n64 502). Additionally, the adjusted RR for 1 mg/dl increments in albumin-adjusted serum Ca or serum total Ca levels was 1·16 (95 % CI 1·07, 1·27) and 1·19 (95 % CI 1·11, 1·28), respectively. The observed associations remained with the inclusion of a cohort study with ionised Ca as the exposure. However, data pooled from neither case–control (n4) nor cross-sectional (n8) studies manifested a significant correlation between circulating Ca and glucose homeostasis. In conclusion, accumulated data from the cohort studies suggest that higher circulating Ca levels are associated with an augmented risk of T2DM.

Systematic Review and Meta-analysis of Pirfenidone, Nintedanib, and Pamrevlumab for the Treatment of Idiopathic Pulmonary Fibrosis

2020 ◽  
pp. 106002802096445
Author(s):  
Enrica Di Martino ◽  
Alessio Provenzani ◽  
Patrizio Vitulo ◽  
Piera Polidori
Keyword(s):  
Systematic Review ◽  
Idiopathic Pulmonary Fibrosis ◽  
Pulmonary Fibrosis ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
World Health ◽  
Effect Model ◽  
All Cause Mortality ◽  
Positive Effect

Background: The comparative efficacy of pirfenidone, nintedanib, and pamrevlumab in slowing the rate of forced vital capacity (FVC) decline and mortality in patients with idiopathic pulmonary fibrosis (IPF) is unknown. Objective: To perform a systematic review and meta-analysis (MA) of these drugs for IPF. Methods: We searched CENTRAL, PubMed, EMBASE, ClincalTrials.gov, and the World Health Organization’s registry databases up to March 2020. Phase II/III randomized controlled trials in adults with IPF were eligible. The random-effect model was implemented calculating the effect size and respective 95% CI as Cohen’s d for change from baseline FVC (in percentage predicted and liters) and odds ratio (OR) for 10% reduction in FVC and all-cause mortality (ACM). Results: Six studies were included in the MA. For change from baseline in percentage predicted FVC, the MA indicated that the 3 drugs were more effective than placebo (pirfenidone: d=3.30%, 95% CI=2.15-4.45; nintedanib: d=3.15%, 95% CI=2.35-3.95; pamrevlumab: d=4.30%, 95% CI=0.45-8.15). These results are superimposable to those relating to change from baseline FVC in liters (pirfenidone: d=0.09L, 95% CI=0.04-0.14; nintedanib: d=0.13L, 95% CI=0.10-0.16; pamrevlumab: d=0.20L, 95% CI=0.05-0.35). Each drug had a positive effect on 10% reduction in FVC (pirfenidone: OR=0.57, 95% CI=0.45-0.74; nintedanib: OR=0.66, 95% CI=0.51-0.85; pamrevlumab: OR=0.24, 95% CI=0.08-0.73), but only pirfenidone showed an effect on ACM (OR=0.50; 95% CI=0.31-0.83). Conclusion and Relevance: This MA provided encouraging results on pamrevlumab efficacy in slowing the decline in FVC compared with pirfenidone and nintedanib. Actually, in phase 3, it could become a potential IPF treatment.

scholarly journals Cell-Derived Microparticles in Patients with Type 2 Diabetes Mellitus: a Systematic Review and Meta-Analysis

2016 ◽  
Vol 39 (6) ◽  
pp. 2439-2450 ◽  
Author(s):  
Sheyu Li ◽  
Jia Wei ◽  
Chenghui Zhang ◽  
Xiaodan Li ◽  
Wentong Meng ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Systematic Review ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Meta Analysis ◽  
Cross Sectional ◽  
Significant Difference ◽  
Different Types ◽  
Mean Differences

Background/Aims: The aim of this study was to assess the association between circulating cell-derived microparticles (MPs) and type 2 diabetes mellitus (T2DM). Methods: A literature search was performed systematically in PubMed and Embase to identify available case-control or cross-sectional studies that compared different types of cell-derived MPs in patients with T2DM and non-diabetic controls. Pooled standardized mean differences (SMDs) of each MP type were pooled using meta-analysis. Results: Forty-eight studies involving 2,460 patients with T2DM and 1,880 non-diabetic controls were included for systematic review and 34 of which were included for quantitative study by meta-analysis. In the overall analysis, the levels of circulating total MPs (TMPs), platelet-derived MPs (PMPs), monocyte-derived MPs (MMPs) and endothelium-derived MPs (EMPs) were significantly higher in T2DM patients than those in controls (TMPs: SMD, 0.64; 95%CI, 0.12∼1.15; P=0.02; PMPs: SMD, 1.19; 95%CI, 0.88∼1.50; P <0.00001; MMPs: SMD, 0.92; 95%CI, 0.66∼1.17; P <0.00001; EMPs: SMD, 0.73; 95%CI, 0.50∼0.96; P <0.00001). Meanwhile, no significant difference was shown in leukocyte-derived MPs (LMPs) level between diabetic and non-diabetic groups (SMD, 0.37; 95%CI, -0.15∼0.89; P=0.17). Conclusions: The counts of TMPs, PMPs, MMPs and EMPs elevated in patients with T2DM. And cell-derived MPs may play a role in the pathogenesis of T2DM.

scholarly journals Semen parameters in men recovered from COVID-19: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Sagar Tiwari ◽  
Niranjan KC ◽  
Sajan Thapa ◽  
Anuja Ghimire ◽  
Sanjeev M Bijukchhe ◽  
...  
Keyword(s):  
Systematic Review ◽  
Sex Hormones ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Sperm Concentration ◽  
Semen Parameters ◽  
Sexual Hormones ◽  
Effect Model ◽  
Semen Volume

Abstract Background: The novel beta-coronavirus disease (COVID-19) has infected millions of people globally with high risk among male then female. However, the effect of COVID-19 andrology is still a subject of dispute. We planned to analyze the overall consequences of COVID-19 on semen parameters and male sex hormones.Main text: Systematic search was performed on MEDLINE and Scopus database until June 11 2021. We included observational studies, which reported mean ± standard deviation of the semen parameters and serum sex hormones of those reproductive-aged male recovered from COVID-19 and controls who did not suffered from COVID-19. We used Random-effect model to pool the studies, as heterogeneity was present. Heterogeneity was evaluated by Q test and I2. All studies were assessed with their quality and publication bias.We assessed 966 articles for eligibility and found 7 eligible studies meeting PICO criteria. This include 934 participants with mean age 37.34 ± 10.5. Random-effect model meta-analysis showed that men recovered form COVID-19 had semen parameters less than those who had not suffered from COVID-19. The overall mean difference (MD) [95% confidence interval (CI)] in semen volume, sperm concentration, sperm number, and progressive sperm motility was -0.20 (-0.45, 0.05), -16.59 (-34.82, 1.65), -45.44 (-84.56, -6.31), -1.73(-8.20, 4.75) respectively. Considering sex hormones; Luteinizing hormone and prolactin was found more among those recovered with the significant MD (95% CI) of 3.47 (1.59, 5.35) and 3.21 (1.71, 4.72) respectively.Conclusion: Both the semen parameters and sexual hormones were found to be affected after infected with COVID-19. However, the mechanism for testicular involvement remains doubtful.This systematic review and meta-analysis has been registered in PROSPERO (ID: CRD42021259445)

scholarly journals Do Corticosteroids Affect Prenatal Biophysical Parameters? A Systematic Review and Meta-analysis

2020 ◽  
Vol 8 (3) ◽  
pp. 259-264
Author(s):  
Sanaz Musavi ◽  
Leila Nikniaz ◽  
Hosein Hoseinifard ◽  
Arezou Hamzehzadeh ◽  
Shabnam Vazifekhah
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Cochrane Library ◽  
Effect Model ◽  
Biophysical Profile ◽  
Betamethasone And Dexamethasone

This systematic review and meta-analysis aimed to evaluate the effect of betamethasone and dexamethasone on biophysical profile (BPP) parameters. In addition, it was performed in 2017, using several databases such as PubMed/MEDLINE, Scopus, EMBASE, Cochrane library, ISI Web of science, Proquest, and Google scholar, along with Magiran SID and IranMedex. Eligible studies were selected by two reviewers and the outcomes of interest were extracted as well. Meta-analysis was done using the random effect model. Further, I-square statistic test was used for heterogeneity analysis and the presence of publication bias was also checked. At last, 12 studies were included and a random and fixed effect model was used for analysis. The pooled event rates were 4.5% (95% CI = 0.01-64.3, P=0.1), 76.8% (% 95 CI=33.5-95.6, P=0.21), 71.8% (% 95 CI=38.8-91.1, P=0.18), 70.9% (%95 CI=38.4-90.5, P=0.20), and 92.3% (%95 CI=76.0-97.8, P<0.001) for the reduced amniotic fluid volume, baseline fetal heart rate reactivity, fetal breathing, fetal movement, and heart rate variability, respectively. In summary, a significant decrease was observed in heart rate variability following betamethasone and dexamethasone administration. However, further systematic reviews are necessary to differentiate steroid induced changes in the fetal BPP from those due to fetal compromise

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