scholarly journals Polimorfismos de nucleotídeos único no gene IGFBP3 e o processo de carcinogênese: uma revisão sistemática

2021 ◽  
Vol 10 (1) ◽  
pp. e48810111978
Author(s):  
Paulo Pedro de Freitas ◽  
Israel Faustino dos Santos ◽  
Denise Macedo da Silva ◽  
Cristiane Araújo Nascimento ◽  
Ana Caroline Melo dos Santos ◽  
...  
Keyword(s):  
Systematic Review ◽  
Growth Factor ◽  
Cell Growth ◽  
Genetic Variants ◽  
Web Of Science ◽  
Case Control ◽  
Case Control Studies ◽  
Suppression Method ◽  
Cell Growth Suppression

Introduction: Insulin-like growth factor binding protein -3 (IGFBP3) is the main mediator of IGF-1/IGF-1R binding, and may inhibit the binding between IGF-1 and IGF-1R and trigger cell growth suppression. Method: This study is a systematic review in which searches were conducted in Pubmed, Web of science, Science direct and Scopus databases for studies published in the period 2010-2020, including case-control studies that evaluated the association of polymorphisms in the IGFBP3 gene with cancer. Results: Of the 6 studies included, 5 were conducted in China and 1 in Iran, published in 2015 (n=2), 2014 (n=2), 2013 (n=1) and 2011 (n=1). In all, there were 5 types of cancer studied: esophagus (n=2), prostate (n=1), colorectal (n=1), breast (n=1) and gastric (n=1). In the studies chosen, 8 SNPs located in the IGFBP3 gene were evaluated: rs2854744, rs2854746, rs2132572, rs9282734, rs3110697, rs2960436, rs2270628 and rs10282088. Only the Zhao et al studies. (2015) and Liu et al. (2015) found a relationship between SNPs in the IGFBP3 gene with cancer. Two studies (Qian et al., 2014 and Qian et al., 2011) did not describe allelic frequencies in their results. Conclusion: Based on the studies we can demonstrate that the findings on the association of polymorphisms in the IGFBP3 gene with cancers are confusing, divergent and the role of the IGF pathway in carcinogenesis has not been clearly defined. However, the studies bring strong evidence that suggests possible relationships of this pathway and genetic variants with the carcinogenesis process in several types of cancer.

Effect of Exposure to Cats and Dogs on the Risk of Asthma and Allergic Rhinitis: A Systematic Review and Meta-analysis

2020 ◽  
Vol 34 (5) ◽  
pp. 703-714
Author(s):  
Xiaoping Gao ◽  
Mei Yin ◽  
Pei Yang ◽  
Xia Li ◽  
Lingling Di ◽  
...  
Keyword(s):  
Systematic Review ◽  
Allergic Rhinitis ◽  
Cohort Studies ◽  
Meta Analysis ◽  
Pooled Analysis ◽  
Protective Role ◽  
Case Control ◽  
Favorable Effect ◽  
Case Control Studies

Background Controversies persist regarding whether exposure to cat or dog increases the risk of asthma and allergic rhinitis. Objective This meta-analysis aimed to assess the associations between exposure to cats or dogs and the development of asthma and allergic rhinitis. Methods A systematic review was performed to identify case-control and cohort studies before May 2019, evaluating the association between exposure to cats and dogs and the risk of asthma and rhinitis. The risk of bias was assessed using the Newcastle–Ottawa Scale. The odds ratios (ORs) and risk ratios (RRs) were pooled for case-control and cohort studies, respectively. Subgroup analyses were performed on prespecified study-level characteristics. Results The meta-analysis of 34 cohort studies showed a protective role of exposure to cats [RR: 0.88, 95% confidence interval (CI): 0.77–0.99] or dogs (RR: 0.85, 95% CI: 0.73–0.97) in the development of asthma. The subgroup analysis of birth cohort (RR: 0.74, 95% CI: 0.56–0.93) and children population (RR: 0.83, 95% CI: 0.70–0.96) also suggested a favorable role of exposure to dogs in the development of asthma. Pooled evidence from 13 case-control studies indicated no significant impact of cats (OR: 1.66, 95% CI: 0.39–2.94) and dogs (OR: 1.22, 95% CI: 0.92–1.52) on the development of asthma. A pooled analysis of five cohort studies showed a favorable effect of exposure to cats (RR: 0.60, 95% CI: 0.33–0.86) or dogs (RR: 0.68, 95% CI 0.44–0.90) on the development of allergic rhinitis. Conclusion The findings indicated a protective effect of exposure to cats and dogs, especially ownership, on the development of asthma and allergic rhinitis.

The role of calcium and vitamin D dietary intake on risk of colorectal cancer: systematic review and meta-analysis of case–control studies

2021 ◽  
Author(s):  
Juan Francisco Lopez-Caleya ◽  
Luis Ortega-Valín ◽  
Tania Fernández-Villa ◽  
Miguel Delgado-Rodríguez ◽  
Vicente Martín-Sánchez ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Systematic Review ◽  
Vitamin D ◽  
Dietary Intake ◽  
Meta Analysis ◽  
Case Control ◽  
Case Control Studies

scholarly journals Physical exercise and metformin in the prevention of pre-eclampsia: systematic review

2020 ◽  
Vol 33 ◽  
Author(s):  
Iramar Baptistella do Nascimento ◽  
Mayco Morais Nunes ◽  
Raquel Fleig
Keyword(s):  
Systematic Review ◽  
Physical Exercise ◽  
Web Of Science ◽  
Circulatory System ◽  
Case Control ◽  
Review Of The Literature ◽  
Metabolic Factors ◽  
Case Control Studies ◽  
Bias Assessment ◽  
Black Scale

Abstract Introduction: Pre-eclampsia is a disorder that may occur during pregnancy but is still unknown and / or multifactorial causes. Objective: To verify whether physical exercise and metformin may be helpful in preventing preeclampsia. Method: This is a systematic review of the literature in PubMed / MEDLINE, Web of Science, Scopus, LILACS and Cochrane. This review followed the critiques of the PRISMA checklist. Bias assessment was used for the Cochrane Handbook for Systematical Reviews of Interventions (Version 5.1.0) for clinical trials and the Downs and Black scale for cohort and case-control studies. Results: 17 studies were within the established criteria. The subjects evaluated were: pre-eclampsia, cardiovascular metabolic factors, physiotherapeutic therapies and the effects of physical exercise and metformin on the circulatory system. Conclusion: There is a need for adapted techniques and new protocols according to the contingencies and complications of pregnancy. During pregnancy, it is suggested a greater interdisciplinarity of knowledge among professionals and that the therapy receives adjustments against the metabolic alterations of the reproductive system. In order to prevent preeclampsia, the study suggests a program of individual exercises that include greater assistance, verification and / or comprehension of possible changes and their limits during pregnancy. As well as, the adjuvant use of metformin of 1000 mg/d in the initial phase, with the purpose of maintaining the effects of the drug due to renal clearance during pregnancy, until reaching a maximum of 1500 mg/d, to avoid side effects of the drug.

scholarly journals Genetic Association betweenNFKBIAandNFKB1Gene Polymorphisms and the Susceptibility to Head and Neck Cancer: A Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Lin Li ◽  
Zhong-Ti Zhang
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Web Of Science ◽  
Meta Analysis ◽  
Case Control ◽  
Statistical Correlation ◽  
Case Control Studies ◽  
The Relationship

Background. The role of theNFKB1gene rs28362491 polymorphism andNFKBIAgene rs2233406 polymorphism in the development of head and neck cancer (HNC) remains controversial. This meta-analysis was performed to assess the relationship between the gene polymorphisms and HNC quantitatively.Methods. PubMed, Embase, Web of Science, WanFang Data, and China National Knowledge databases were used to search for eligible articles. The relationship was evaluated by STATA 11.0.Results. Eight eligible articles were included in our study. Nine case-control studies from the eight included articles were correlated with rs28362491 polymorphism. Four articles were related to rs2233406 polymorphism. Overall, a significant correlation was observed between the rs28362491 polymorphism and a decreased risk of HNCs (OR=0.76,95%CI=0.60‐0.97for DD vs. II;OR=0.80,95%CI=0.68‐0.95for DD vs. DI+II). In subgroup analyses, the rs28362491 polymorphism was associated with the risk of nasopharyngeal carcinoma (NC), but not with oral cancer (OC). In addition, no statistical correlation was found between the polymorphism of rs2233406 and HNCs.Conclusion. rs28362491 polymorphism was significantly associated with the risk of HNCs, especially with NC. Additionally, our results showed that no association was discovered between rs2233406 polymorphism and HNCs.

scholarly journals Tissue and Serum Trace Elements Concentration among Colorectal Patients: A Systematic Review of Case-Control Studies

2019 ◽  
Author(s):  
Azmawati Mohammed NAWI ◽  
Siok-Fong CHIN ◽  
Shamsul AZHAR SHAH ◽  
Rahman JAMAL
Keyword(s):  
Systematic Review ◽  
Trace Elements ◽  
Search Strategy ◽  
Case Control ◽  
Case Control Studies ◽  
Colon Tissue ◽  
Serum Trace Elements ◽  
Tissue Specimens ◽  
Insight Into

Background: Trace elements play a pivotal role in Colorectal Cancer (CRC) inhibition and development process. This systematic review provides the basic comparison of case-control studies focusing on concentration of trace elements between those with CRC and controls Methods: The systematic review searched through two databases of Medline and Cochrane up to 24th June 2017. The search strategy focused on Population, Intervention, Comparison, and Outcomes (PICO). We searched the role of trace elements in cancer and focusing on case-control studies in CRC to obtain an insight into the differences in trace element concentrations between those with and without cancer. Results: The serum concentrations of Ca, Cu, Mg, Mn, Se, Si, and Zn were lower in CRC patients but for Co and S the levels were higher in CRC patients. The concentrations of Cd, Cr, Cu, Mg, Mn, Pb, and Zn were increased in patients with metastasis, but not in Se. As for colon tissue specimens, inconsistent levels were reported between studies, notably in Cu, Se, and Zn. No changes were reported for B and Ca levels. Most of the trace elements in the tissue specimens showed higher concentrations of Cr, Fe, K, Mg, P, Rb, S, and Si compared to Br. Conclusion: With the growing interest to understand the link between trace elements in carcinogenesis and the possible interactions, multi assessment analysis of a larger cohort of samples is necessary.

scholarly journals Extended Investigation on the connection of TP73 G4C14-A4T14 Polymorphism with different Cancer Types – An Updated Meta-analysis with 56 Case-control Studies

2022 ◽  
Author(s):  
Sarah Jafrin ◽  
◽  
Md. Abdul Aziz ◽  
Mohammad Safiqul Islam
Keyword(s):  
Information Sources ◽  
Web Of Science ◽  
Meta Analysis ◽  
Case Control ◽  
Cochrane Library ◽  
Case Control Studies ◽  
Review Question ◽  
Cancer Types ◽  
Risk Of Cancer

Review question / Objective: TP73 G4C14-A4T14 variant has been suspected of elevating the risk of cancer for many years. The available evidence was unsatisfactory and could not provide a reliable conclusion. Therefore, we performed this meta-analysis to re-evaluate the previous findings and illustrate the actual role of TP73 G4C14-A4T14 variant on cancer development. Condition being studied: The association of the G4C14-A4T14 variant with cancer risk was studied. Information sources: PubMed, Google Scholar, EMBASE, Cochrane Library, and Web of Science, CNKI.

scholarly journals Insight into the Role of IL-1β rs1143634 (+3954C>T) Polymorphism in Cancer Risk: An Updated Meta-analysis and Trial Sequential Analysis

2021 ◽  
Author(s):  
Sarah Jafrin ◽  
◽  
Md. Abdul Aziz ◽  
Mohammad Safiqul Islam
Keyword(s):  
Sequential Analysis ◽  
Web Of Science ◽  
Meta Analysis ◽  
Case Control ◽  
Trial Sequential Analysis ◽  
Detailed Data ◽  
Case Control Studies ◽  
Review Question ◽  
Insight Into

Review question / Objective: To assess the link of IL-1β rs1143634 (+3954C>T) Polymorphism with cancer. Condition being studied: The included studies must contain 1) genotypic information and detailed data of IL-1β rs1143634 (+3954C>T) polymorphism 2) case-control studies. Information sources: PubMed, Google Scholar, CNKI, Web of Science, and EMBASE.

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