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Period Family of Clock Genes as Novel Predictors of Survival in Human Cancer: A Systematic Review and Meta-Analysis.

ABSTRACT: Background:Period genes are important core clock genes, including PER1, PER2, and PER3. A number of studies have demonstrated that the abnormal expression of the PER gene family of clock genes is associated with the survival and prognosis of patients with cancer; however, the sample sizes included in the majority of these studies were small, and the reported results were inconsistent. This study was the first to collect the relevant publications to systematically evaluate the value of the expression of the PER gene family in the prediction of survival and prognosis of human tumors. Methods:The PubMed, Cochrane Library, Embase, and Web of Science databases were searched systematically, and a meta-analysis was performed. Results:A total of 12 eligible publications met the inclusion criteria for the meta-analysis, including 1,369 patients and 9 different types of cancer. The pooled hazard ratio for overall survival indicated that the overall survival of patients in the high PER1, PER2, and PER3 protein expression group was significantly higher than that in the low-expression group, respectively. The sensitivity analysis revealed that the result was stable and reliable. The association between PER1 and PER3 mRNA expression levels and cancer prognosis was not meta-analyzed as the number of experimental studies was <3. There was no significant association between the expression of PER2 mRNA and the overall survival of patients with cancer. Conclusion:PER1, PER2, and PER3 protein expression levels can be used as novel potential biomarkers for predicting cancer prognosis.

SUBMITTER: Deng F

PROVIDER: S-EPMC7436287 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Period Family of Clock Genes as Novel Predictors of Survival in Human Cancer: A Systematic Review and Meta-Analysis.

Deng Fan F Yang Kai K Zheng Gang G

Disease markers 20200810

<h4>Background</h4>Period genes are important core clock genes, including <i>PER1</i>, <i>PER2</i>, and <i>PER3</i>. A number of studies have demonstrated that the abnormal expression of the <i>PER</i> gene family of clock genes is associated with the survival and prognosis of patients with cancer; however, the sample sizes included in the majority of these studies were small, and the reported results were inconsistent. This study was the first to collect the relevant publications to systematica ...[more]

PMID: 32849922

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Project description:Background:unmet need for family planning is a common cause of uninteded pregnancy which mostly end up with abortion. Many studies were conducted on predictors of unmet need of family planning in Ethiopia. But, up until now, single evidence has not been synthesized and various point prevalence estimates of unmet need for family planning have been reported. Therefore, this sytematic review and meta analysis was established to identify the predictors of unmet need for family planning in Ethiopia. Methods:search engines including PubMed, Embase, CINAHL, Google Scholar, HINARI portal, and Cochrane Library were used to retrieve included articles and reported using the preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA) checklist guidelines. Joanna Briggs Institute Meta-Analysis of Statistics Assessment and Review Instrument (JBI-MAStARI) was applied for critical appraisal. All observational studies done on reproductive age women and reported on unmet need for family planning were included. Unmet need for family planning is the percentage of women of reproductive age, either married or in a union, who have an unmet need for family planning to stop or delay childbearing. Random effect model was done to estimate the pooled prevalence of unmet need for family planning. Odds ratio with 95% confidence interval was considered to determine the association of identified variables with unmet need of family planning. Cochran's Q statistic, Egger's and Begg's test were carried out to assess heterogeneity and publication bias. Results:Fifteen articles and 17, 585 reproductive aged women were included to estimate the pooled prevalence of unmet need for family planning and its predictors in Ethiopia. The prevalence of unmet need for family planning in Ethiopia ranges from 26.52 to 36.39%. Age at first marriage <?18?yrs. with OR?=?2.3 (95% CI: 1.08, 4.87), women with no formal education with OR?=?1.9 (95%CI: 1.19, 3.04), partner with no formal education with OR?=?1.78 (95%CI: 1.18, 2.68) and absence of discussion with their partner about family planning with OR?=?3.52 (95%CI, 2.56, 4.87) were predictors of unmet need of family planning in Ethiopia. Conclusion:This meta analysis revealed that, the prevalence of unmet need for family planning in Ethiopia was high as compared with the United Nations sphere standard of unmet need for planning, considered to be high if it is greater than 25%. Early marriage, no formal eduaction and lack of discussion with partner on family planning were predictors of unmet need for family planning. Therefore, efforts are needed to empower women through eduaction, avoiding early marriage and facilitating dicussion of partners about family planning in order to improve family planning usage.

Project description:BackgroundNon-alcoholic steatohepatitis (NASH) is the second-leading indication for liver transplantation (LT) worldwide and is projected to become the leading indication. Our study aimed to determine clinical variables that predict post-LT survival in NASH.MethodsA systematic review and meta-analysis was performed. On June 18, 2020 and April 28, 2022, Ovid MEDLINE ALL, Ovid Embase, Cochrane Database of Systematic Reviews, and Cochrane Central Register of Controlled Trials were searched. No date limits were applied. Inclusion criteria specified the type of study and our study's population/comparison and outcome/timepoints. Pediatric, animal, retransplantation-only, and studies classifying cryptogenic cirrhosis patients with body mass index (BMI) <30 as NASH were excluded. Studies with duplicate cohorts and missing information were excluded from the meta-analysis. Studies were appraised using the Newcastle-Ottawa Scale. This study was preregistered in PROSPERO (CRD42020196915).FindingsOut of 8583 studies identified, 25 studies were included in the systematic review, while 5 studies were included in the meta-analysis. Our quantitative review suggested that the following variables were predictive of post-LT NASH patient survival: recipient age, functional status, pre-LT hepatoma, model for end-stage liver disease (MELD) score, diabetes mellitus (DM), pre-LT dialysis, hepatic encephalopathy, portal vein thrombosis, hospitalization/ICU at LT, and year of LT. Predictors of graft survival included recipient age, BMI, pre-LT dialysis, and DM. Our pooled meta-analyses included five predictors of patient survival. Increased patient mortality was associated with older recipient age (HR=2·07, 95%CI: 1·71-2·50, I2=0, τ2=0, p=0·40) and pretransplant DM (HR=1·18, 95%CI: 1·08-1·28, I2=0, τ2=0, p=0·76).InterpretationOur systematic review and meta-analysis aimed to synthesise predictive variables of mortality in LT NASH patients. Clinically, this might help to identify modifiable risk factors that can be optimized in the post-transplant setting to improve patient outcomes and optimises decision making in the resource-limited LT setting.FundingToronto General and Western Hospital Foundation.

Project description:OBJECTIVES:Inadequate postoperative pain control is common and is associated with poor clinical outcomes. This study aimed to identify preoperative predictors of poor postoperative pain control in adults undergoing inpatient surgery. DESIGN:Systematic review and meta-analysis DATA SOURCES: MEDLINE, Embase, CINAHL and PsycINFO were searched through October 2017. ELIGIBILITY CRITERIA:Studies in any language were included if they evaluated postoperative pain using a validated instrument in adults (≥18 years) and reported a measure of association between poor postoperative pain control (defined by study authors) and at least one preoperative predictor during the hospital stay. DATA EXTRACTION AND SYNTHESIS:Two reviewers screened articles, extracted data and assessed study quality. Measures of association for each preoperative predictor were pooled using random effects models. RESULTS:Thirty-three studies representing 53 362 patients were included in this review. Significant preoperative predictors of poor postoperative pain control included younger age (OR 1.18 [95% CI 1.05 to 1.32], number of studies, n=14), female sex (OR 1.29 [95% CI 1.17 to 1.43], n=20), smoking (OR 1.33 [95% CI 1.09 to 1.61], n=9), history of depressive symptoms (OR 1.71 [95% CI 1.32 to 2.22], n=8), history of anxiety symptoms (OR 1.22 [95% CI 1.09 to 1.36], n=10), sleep difficulties (OR 2.32 [95% CI 1.46 to 3.69], n=2), higher body mass index (OR 1.02 [95% CI 1.01 to 1.03], n=2), presence of preoperative pain (OR 1.21 [95% CI 1.10 to 1.32], n=13) and use of preoperative analgesia (OR 1.54 [95% CI 1.18 to 2.03], n=6). Pain catastrophising, American Society of Anesthesiologists status, chronic pain, marital status, socioeconomic status, education, surgical history, preoperative pressure pain tolerance and orthopaedic surgery (vs abdominal surgery) were not associated with increased odds of poor pain control. Study quality was generally high, although appropriate blinding of predictor during outcome ascertainment was often limited. CONCLUSIONS:Nine predictors of poor postoperative pain control were identified. These should be recognised as potentially important factors when developing discipline-specific clinical care pathways to improve pain outcomes and to guide future surgical pain research. PROSPERO REGISTRATION NUMBER:CRD42017080682.

Dataset Information

Period Family of Clock Genes as Novel Predictors of Survival in Human Cancer: A Systematic Review and Meta-Analysis.

Publications

Period Family of Clock Genes as Novel Predictors of Survival in Human Cancer: A Systematic Review and Meta-Analysis.

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