scholarly journals Associations between TLR4 Polymorphisms and Open Angle Glaucoma: A Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Zhongjing Lin ◽  
Shouyue Huang ◽  
Jun Sun ◽  
Bing Xie ◽  
Yisheng Zhong
Keyword(s):  
Genetic Model ◽  
Open Angle Glaucoma ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Recessive Model ◽  
Cochrane Library ◽  
Open Angle ◽  
Increased Risk ◽  
Meta Analyses ◽  
The Cochrane Library

Background. Previous studies exploring the association between toll-like receptor 4 (TLR4) polymorphisms and open angle glaucoma (OAG) presented inconsistent results. We aimed to investigate the association between TLR4 polymorphisms and OAG. Methods. A systematic literature search was conducted in PubMed, EMBASE, ISI Web of Knowledge, and the Cochrane Library up to 31 December 2018. Odds ratio (OR) and 95% confidence interval (95%CI) were calculated, followed by stratification analyses according to ethnicity and glaucoma subtype. Results. TLR4 rs7037117 polymorphism had significant associations with increased risk of OAG in allelic model (OR=1.25; 95%CI: 1.09-1.44; P=0.002) and recessive model (OR=1.49; 95%CI: 1.08-2.04; P=0.01). With regard to rs10759930, rs12377632, and rs2149356, the results showed significant increased risks in all genetic models (all P<0.05), whereas, for rs1927914, rs11536889, and rs7045953, no significant associations were identified in any genetic model (all P>0.05). Furthermore, the association of rs1927911 with OAG risk was found to be significant in recessive model (OR=1.34; 95%CI: 1.06-1.71; P=0.02). As for rs4986790 and rs4986791, meta-analyses were not performed due to the limited number of studies and the ethnic differences. Subgroup analysis indicated that the above polymorphisms with significant differences might increase the susceptibility in POAG patients. As for the ethnicity, rs7037117, rs10759930, and rs1927911 might increase the risk in Asians, while rs12377632 and rs2149356 might increase the risk in Asians and Mexicans. Conclusion. The meta-analysis highlighted that certain mutations of some TLR4 polymorphisms might increase the susceptibility of OAG. However, TLR4 polymorphisms are still far from being candidate genetic biomarkers for OAG. Additional researches involving larger scale epidemiological studies are warranted to validate our results.

scholarly journals TLR9 Rs352140 polymorphism contributes to a decreased risk of bacterial meningitis: evidence from a meta-analysis

2020 ◽  
Vol 148 ◽  
Author(s):  
Haiyi Xue ◽  
Huan Peng ◽  
Jiaoming Li ◽  
Mingming Li ◽  
Song Lu
Keyword(s):  
Bacterial Meningitis ◽  
Genetic Model ◽  
Meta Analysis ◽  
Relevant Literature ◽  
Cochrane Library ◽  
Case Control Studies ◽  
China National Knowledge Infrastructure ◽  
Knowledge Infrastructure ◽  
Increased Risk ◽  
The Cochrane Library

Abstract Some studies have suggested that the Toll-like receptor 9 polymorphism (TLR9 rs352140) is closely related to the risk of bacterial meningitis (BM), but this is subject to controversy. This study set out to estimate whether the TLR9 rs352140 polymorphism confers an increased risk of BM. Relevant literature databases were searched including PubMed, Embase, the Cochrane Library and China National Knowledge Infrastructure (CNKI) up to August 2020. Seven case-control studies from four publications were enrolled in the present meta-analysis. Odds ratios (OR) and confidence intervals (95% CI) were calculated to estimate associations between BM risk and the target polymorphism. Significant associations identified were allele contrast (A vs. G: OR 0.66, 95% CI 0.59–0.75, P = 0.000), homozygote comparison (AA vs. AG/GG: OR 0.62, 95% CI 0.49–0.78, P = 0.000), heterozygote comparison (A vs. G: OR 0.74, 95% CI 0.61–0.91, P = 0.005), recessive genetic model (AA vs. AG/GG: OR 0.78, 95% CI 0.65–0.93, P = 0.006) and dominant genetic model (AA vs. AG/GG: OR 0.70, 95% CI 0.57–0.85, P = 0.000). The findings indicate that, in contrast to some studies, the TLR9 rs352140 polymorphism is associated with a decreased risk for BM.

scholarly journals A meta-analysis of cohort studies: Traumatic brain injury and risk of Alzheimer’s Disease

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253206
Author(s):  
Jieyu Zhang ◽  
Yongkang Zhang ◽  
Juntao Zou ◽  
Fei Cao
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Severe Traumatic Brain Injury ◽  
Meta Analysis ◽  
Cognitive Disorders ◽  
Epidemiological Studies ◽  
Population Based ◽  
Cochrane Library ◽  
Increased Risk ◽  
The Cochrane Library

Introduction Recently, some epidemiological studies have reported that cognitive disorders in elderly people is accelerated with traumatic brain injury. But the causal relationship between traumatic brain injury and AD is still an area of controversy. Aims Our review was conducted to estimate the relation between traumatic brain injury and risk of AD. Methods All longitudinal population-based studies comparing incidence of AD between subjects with and without traumatic brain injury from their inception to September 2020 were searched in The Cochrane Library, PubMed, Medline, Embase, Web of Science without restriction of language. The meta-analysis was conducted using Stata software. Results A total of 17 studies involving 4289,548 individuals were included. After pooling these 17 studies, subjects with traumatic brain injury had significant higher incidence of AD than those without traumatic brain injury (RR: 1.17, 95% CI: 1.05–1.29). When considering the severity of traumatic brain injury, this elevated risk of AD was still significant comparing subjects with moderate and severe traumatic brain injury and those with no traumatic brain injury (RR: 1.30, 95% CI: 1.01–1.59). Conclusion Traumatic brain injury, especially moderate and severe traumatic brain injury may be associated with increased risk of AD.

scholarly journals EXPRESS: Stroke risk following traumatic brain injury: systematic review and meta-analysis

2021 ◽  
pp. 174749302110042
Author(s):  
Grace Mary Turner ◽  
Christel McMullan ◽  
Olalekan Lee Aiyegbusi ◽  
Danai Bem ◽  
Tom Marshall ◽  
...  
Keyword(s):  
Systematic Review ◽  
Stroke Risk ◽  
Meta Analysis ◽  
Vitamin K Antagonists ◽  
Cochrane Library ◽  
Control Group ◽  
Large Sample Size ◽  
Hazard Ratios ◽  
Increased Risk ◽  
The Cochrane Library

Aims To investigate the association between TBI and stroke risk. Summary of review We undertook a systematic review of MEDLINE, EMBASE, CINAHL, and The Cochrane Library from inception to 4th December 2020. We used random-effects meta-analysis to pool hazard ratios (HR) for studies which reported stroke risk post-TBI compared to controls. Searches identified 10,501 records; 58 full texts were assessed for eligibility and 18 met the inclusion criteria. The review included a large sample size of 2,606,379 participants from four countries. Six studies included a non-TBI control group, all found TBI patients had significantly increased risk of stroke compared to controls (pooled HR 1.86; 95% CI 1.46-2.37). Findings suggest stroke risk may be highest in the first four months post-TBI, but remains significant up to five years post-TBI. TBI appears to be associated with increased stroke risk regardless of severity or subtype of TBI. There was some evidence to suggest an association between reduced stroke risk post-TBI and Vitamin K antagonists and statins, but increased stroke risk with certain classes of antidepressants. Conclusion TBI is an independent risk factor for stroke, regardless of TBI severity or type. Post-TBI review and management of risk factors for stroke may be warranted.

scholarly journals The association between insulin therapy and depression in patients with type 2 diabetes mellitus: a meta-analysis

BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e020062 ◽  
Author(s):  
Xiaosu Bai ◽  
Zhiming Liu ◽  
Zhisen Li ◽  
Dewen Yan
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Insulin Therapy ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Cochrane Library ◽  
Increased Risk

ObjectivesSeveral patients with type 2 diabetes mellitus (T2DM) have depressive disorders. Whether insulin treatment was associated with increased risk of depression remains controversial. We performed a meta-analysis to evaluate the association of insulin therapy and depression.DesignA meta-analysis.MethodsWe conducted a systematic search of PubMed, PsycINFO, Embase and the Cochrane Library from their inception to April 2016. Epidemiological studies comparing the prevalence of depression between insulin users and non-insulin users were included. A random-effects model was used for meta-analysis. The adjusted and crude data were analysed.ResultsTwenty-eight studies were included. Of these, 12 studies presented with adjusted ORs. Insulin therapy was significantly associated with increased risk of depression (OR=1.41, 95% CI 1.13 to 1.76, p=0.003). Twenty-four studies provided crude data. Insulin therapy was also associated with an odds for developing depression (OR=1.59, 95% CI 1.41 to 1.80, p<0.001). When comparing insulin therapy with oral antidiabetic drugs, significant association was observed for adjusted (OR=1.42, 95% CI 1.08 to 1.86, p=0.008) and crude (OR=1.61, 95% CI 1.35 to 1.93, p<0.001) data.ConclusionsOur meta-analysis confirmed that patients on insulin therapy were significantly associated with the risk of depressive symptoms.

scholarly journals Association Between MTHFR Polymorphisms and the Risk of Essential Hypertension: An Updated Meta-analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Hao Meng ◽  
Shaoyan Huang ◽  
Yali Yang ◽  
Xiaofeng He ◽  
Liping Fei ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Essential Hypertension ◽  
Methylenetetrahydrofolate Reductase ◽  
Meta Analysis ◽  
Mthfr C677t ◽  
Cochrane Library ◽  
Mthfr Polymorphisms ◽  
Southeast Asians ◽  
Increased Risk ◽  
Meta Analyses

Background: Since the 1990s, there have been a lot of research on single-nucleotide polymorphism (SNP) and different diseases, including many studies on 5,10-methylenetetrahydrofolate reductase (MTHFR) polymorphism and essential hypertension (EH). Nevertheless, their conclusions were controversial. So far, six previous meta-analyses discussed the internal relationship between the MTHFR polymorphism and EH, respectively. However, they did not evaluate the credibility of the positive associations. To build on previous meta-analyses, we updated the literature by including previously included papers as well as nine new articles, improved the inclusion criteria by also considering the quality of the papers, and applied new statistical techniques to assess the observed associations. Objectives: This study aims to explore the degree of risk correlation between two MTHFR polymorphisms and EH. Methods: PubMed, EMBASE, the Cochrane Library, CNKI, and Wan Fang electronic databases were searched to identify relevant studies. We evaluated the relation between the MTHFR C677T (rs1801133) and A1298C (rs1801131) polymorphisms and EH by calculating the odds ratios (OR) as well as 95% confidence intervals (CI). Here we used subgroup analysis, sensitivity analysis, cumulative meta-analysis, assessment of publication bias, meta-regression meta, False-positive report probability (FPRP), Bayesian false discovery probability (BFDP), and Venice criterion. Results: Overall, harboring the variant of MTHFR C677T was associated with an increased risk of EH in the overall populations, East Asians, Southeast Asians, South Asians, Caucasians/Europeans, and Africans. After the sensitivity analysis, positive results were found only in the overall population (TT vs. CC: OR = 1.14, 95% CI: 1.00–1.30, Ph = 0.032, I2 = 39.8%; TT + TC vs. CC: OR = 1.15, 95% CI: 1.01–1.29, Ph = 0.040, I2 = 38.1%; T vs. C: OR = 1.14, 95% CI: 1.04–1.25, Ph = 0.005, I2 = 50.2%) and Asian population (TC vs. CC: OR = 1.14, 95% CI: 1.01–1.28, Ph = 0.265, I2 = 16.8%; TT + TC vs. CC: OR = 1.17, 95% CI: 1.04–1.30, Ph = 0.105, I2 = 32.9%; T vs. C: OR = 1.10, 95% CI: 1.02–1.19, Ph = 0.018, I2 = 48.6%). However, after further statistical assessment by FPRP, BFDP, and Venice criteria, the positive associations reported here could be deemed to be false-positives and present only weak evidence for a causal relationship. In addition, when we performed pooled analysis and sensitivity analysis on MTHFR A1298C; all the results were negative. Conclusion: The positive relationships between MTHFR C677T and A1298C polymorphisms with the susceptibility to present with hypertension were not robust enough to withstand statistical interrogation by FPRP, BFDP, and Venice criteria. Therefore, these SNPs are probably not important in EH etiology.

Assessment of the Ovarian Reserve by Serum Anti-Müllerian Hormone in Rheumatoid Arthritis Patients: A Systematic Review and Meta-Analysis

2021 ◽  
pp. 1-8
Author(s):  
Xian-hui Zhang ◽  
Ying-an Zhang ◽  
Xin Chen ◽  
Peng-yan Qiao ◽  
Li-yun Zhang
Keyword(s):  
Rheumatoid Arthritis ◽  
Ovarian Reserve ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Dmard Treatment ◽  
Standard Mean Difference ◽  
Increased Risk ◽  
Significant Difference ◽  
Newcastle Ottawa Scale ◽  
The Cochrane Library

<b><i>Background:</i></b> The ovarian reserve has been reported to be diminished in patients with rheumatoid arthritis. However, these results are still controversial. Anti-Müllerian hormone (AMH) is considered a reliable biomarker for the ovarian reserve. We thus performed a meta-analysis to evaluate the AMH levels and the effect of DMARDs on the ovarian reserve in rheumatoid arthritis patients. <b><i>Methods:</i></b> PubMed, EMBASE, the Cochrane Library, and 2 Chinese databases (CNKI and Wanfang database), up to September 2021, were searched for relevant studies. The Newcastle-Ottawa scale (NOS) was used to assess the quality of the included studies. Pooled standard mean difference (SMD) with 95% confidence intervals (CIs) were determined with the random-effects model. The heterogeneity was described by <i>I</i><sup><i>2</i></sup> statistic and <i>p</i> value from the Cochrane Q test. <b><i>Results:</i></b> Eight eligible studies (679 patients and 1,460 controls) were included in the meta-analysis. Compared with healthy control, the AMH levels in RA patients were significantly lower with the pooled SMD of −0.40 (95% CI: −0.66 to −0.14). However, in comparison of AMH with and without DMARD treatment, there was no significant difference with the pooled SMD of −0.1 (95% CI: −0.39 to 0.19). <b><i>Conclusion:</i></b> The results indicated that there was an increased risk of ovarian failure in RA patients and which is not related to DMARD treatment.

Association between Atopic Dermatitis and the Metabolic Syndrome: A Systematic Review

Dermatology ◽  
2018 ◽  
Vol 234 (3-4) ◽  
pp. 79-85 ◽  
Author(s):  
Zarqa Ali ◽  
Charlotte Suppli Ulrik ◽  
Tove Agner ◽  
Simon Francis Thomsen
Keyword(s):  
Metabolic Syndrome ◽  
Atopic Dermatitis ◽  
Central Obesity ◽  
Current Knowledge ◽  
Positive Association ◽  
Cochrane Library ◽  
The Metabolic Syndrome ◽  
Increased Risk ◽  
Meta Analyses ◽  
The Cochrane Library

Atopic dermatitis (AD) may be associated with the metabolic syndrome and by that carry an increased risk of cardio­vascular disease. Our objective was to provide an update on current knowledge of the association between AD and metabolic syndrome, including each component of the metabolic syndrome. A systematic literature review was performed to identify studies investigating the association between metabolic syndrome and AD from PubMed, Embase, and the Cochrane Library in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. A total of 14 studies, investigating the association between AD and the metabolic syndrome or AD and components of metabolic syndrome fulfilled the inclusion criteria and were included. It seems unlikely that the association between AD and metabolic syndrome is causal. However, women with AD tended to have components of metabolic syndrome more often than women without AD. There was a positive association between AD and central obesity measured as waist circumference, and this association was stronger for women than men. Despite conflicting results regarding hypertension, the association between hypertension and AD also appeared stronger for women. On the other hand, the association between AD and hyperglycemia appears unlikely, and the association between AD and cholesterol levels was inconsistent. In conclusion, it remains unclear whether AD is a risk factor for metabolic syndrome and its components. However, data indicate that central obesity is associated with AD and that the association is stronger for women than men.

Lifestyle and sociodemographic risk factors for gastroschisis: a systematic review and meta-analysis

2020 ◽  
Vol 105 (8) ◽  
pp. 756-764 ◽  
Author(s):  
Silvia Baldacci ◽  
Michele Santoro ◽  
Alessio Coi ◽  
Lorena Mezzasalma ◽  
Fabrizio Bianchi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Genetic Risk ◽  
Illicit Drugs ◽  
Meta Analysis ◽  
Genetic Risk Factors ◽  
Epidemiological Studies ◽  
Black Mothers ◽  
Increased Risk ◽  
Sociodemographic Risk ◽  
Meta Analyses

BackgroundGastroschisis is strongly associated with young maternal age. This association suggests the need for further investigations on non-genetic risk factors. Identifying these risk factors is a public health priority in order to develop prevention strategies aimed at reducing the prevalence and health consequences in offspring.ObjectiveTo systematically assess and quantitatively synthesise the available epidemiological studies to evaluate the association between non-genetic risk factors and gastroschisis.MethodsLiterature from PubMed, EMBASE and Scopus was searched for the period 1990–2018. Epidemiological studies reporting risk estimates between lifestyle and sociodemographic risk factors and gastroschisis were included. Two pairs of reviewers independently extracted information on study characteristics following Preferred Reporting Items for Systematic Reviews and Meta-Analyses and MOOSE (Meta-analysis Of Oservational Studies in Epidemiology) guidelines. Relative risk (RR) estimates were calculated across the studies and meta-analysis was performed using random-effects model.ResultsWe identified 58 studies. Meta-analyses were conducted on 29 studies. Maternal smoking (RR 1.56, 95% CI 1.40 to 1.74), illicit drug use (RR 2.14, 95% CI 1.48 to 3.07) and alcohol consumption (RR 1.40, 95% CI 1.13 to 1.70) were associated with an increased risk of gastroschisis. A decreased risk among black mothers compared with non-Hispanic white mothers (RR 0.49, 95% CI 0.38 to 0.63) was found. For Hispanic mothers no association was observed.ConclusionsExposure to smoking, illicit drugs and alcohol during pregnancy is associated with an increased risk of gastroschisis. A significantly decreased risk for black mothers was observed. Further epidemiological studies to assess the potential role of other environmental factors are strongly recommended.PROSPERO registration numberCRD42018104284.

scholarly journals The Effectiveness and Safety of Manual Acupuncture Therapy in Patients with Poststroke Cognitive Impairment: A Meta-analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Wei Liu ◽  
Chang Rao ◽  
Yuzheng Du ◽  
Lili Zhang ◽  
Jipeng Yang
Keyword(s):  
Cognitive Impairment ◽  
Cognitive Function ◽  
Barthel Index ◽  
Daily Life ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Activities Of Daily Life ◽  
Rigorous Study ◽  
Meta Analyses ◽  
The Cochrane Library

Background. Poststroke cognitive impairment (PSCI) is a common cause of disability among patients with stroke. Meanwhile, acupuncture has increasingly been used to improve motor and cognitive function for stroke patients. The aim of the present study was to summarize and evaluate the evidence on the effectiveness of acupuncture in treating PSCI. Methods. Eight databases (PubMed, The Cochrane Library, CNKI, WanFang Data, VIP, CBM, Medline, Embase databases) were searched from January 2010 to January 2020. Meta-analyses were conducted for the eligible randomized controlled trials (RCTs). Assessments were performed using Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Barthel Index (BI), or modified Barthel Index (MBI). Results. A total of 657 relevant RCTs were identified, and 22 RCTs with 1856 patients were eventually included. Meta-analysis showed that acupuncture appeared to be effective for improving cognitive function as assessed by MMSE ( mean   difference   MD = 1.73 , 95% confidence interval (CI) (1.39, 2.06), P < 0.00001 ) and MoCA ( MD = 2.32 , 95% CI (1.92, 2.73), P < 0.00001 ). Furthermore, it also suggested that acupuncture could improve the activities of daily life (ADL) for PSCI patients as assessed by BI or MBI ( SMD = 0.97 , 95% CI (0.57, 1.38), P < 0.00001 ). Conclusions. Compared with nonacupuncture group, acupuncture group showed better effects in improving the scores of MMSE, MoCA, BI, and MBI. This meta-analysis provided positive evidence that acupuncture may be effective in improving cognitive function and activities of daily life for PSCI patients. Meanwhile, long retention time of acupuncture may improve cognitive function and activities of daily life, and twist technique may be an important factor that could influence cognitive function. However, further studies using large samples and a rigorous study design are needed to confirm the role of acupuncture in the treatment of PSCI.

scholarly journals Influence ofDPYDGenetic Polymorphisms on 5-Fluorouracil Toxicities in Patients with Colorectal Cancer: A Meta-Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Qiang Li ◽  
Ying Liu ◽  
Hong-Mei Zhang ◽  
Yin-Peng Huang ◽  
Tian-Yi Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Genetic Polymorphisms ◽  
Web Of Science ◽  
Meta Analysis ◽  
Dihydropyrimidine Dehydrogenase ◽  
Cochrane Library ◽  
Inclusion Criteria ◽  
Meta Analyses ◽  
The Cochrane Library ◽  
Stratified Analysis

Our meta-analysis aggregated existing results from relevant studies to comprehensively investigate the correlations between genetic polymorphisms in dihydropyrimidine dehydrogenase (DPYD) gene and 5-fluorouracil (5-FU) toxicities in patients with colorectal cancer (CRC). The MEDLINE (1966∼2013), the Cochrane Library Database (Issue 12, 2013), EMBASE (1980∼2013), CINAHL (1982∼2013), Web of Science (1945∼2013), and the Chinese Biomedical Database (CBM) (1982∼2013) were searched without language restrictions. Meta-analyses were conducted with the use of STATA software (Version 12.0, Stata Corporation, College Station, TX, USA). Seven clinical cohort studies with a total of 946 CRC patients met our inclusion criteria, and NOS scores of each of the included studies were ≥5. Our findings showed thatDPYDgenetic polymorphisms were significantly correlated with high incidences of 5-FU-related toxicity in CRC patients. SNP-stratified analysis indicated that there were remarkable connections of IVS14+1G>A, 464T>A, and 2194G>A polymorphisms with the incidence of marrow suppression in CRC patients receiving 5-FU chemotherapy. Furthermore, we found that IVS14+1G>A, 496A>G, and 2194G>A polymorphisms were correlated with the incidence of gastrointestinal reaction. Ethnicity-stratified analysis also revealed thatDPYDgenetic polymorphisms might contribute to the development of marrow suppression and gastrointestinal reaction among Asians, but not among Caucasians. The present meta-analysis suggests thatDPYDgenetic polymorphisms may be correlated with the incidence of 5-FU-related toxicity in CRC patients.

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