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Genetic polymorphisms of organic cation transporters 1 (OCT1) and responses to metformin therapy in individuals with type 2 diabetes mellitus : a systematic review protocol

dc.contributor.authorMato, Edith P. M.en_ZA
dc.contributor.authorGuewo-Fokeng, Magellanen_ZA
dc.contributor.authorFaadiel Essop, M.en_ZA
dc.contributor.authorOwira, Peter M. O.en_ZA
dc.date.accessioned2018-07-30T06:34:55Z
dc.date.available2018-07-30T06:34:55Z
dc.date.issued2018-07-25
dc.identifier.citationMato, E. P. M. et al. 2018. Genetic polymorphisms of organic cation transporters 1 (OCT1) and responses to metformin therapy in individuals with type 2 diabetes mellitus : a systematic review protocol. Systematic Reviews, 7:105, doi:10.1186/s13643-018-0773-y.
dc.identifier.issn2046-4053 (online)
dc.identifier.otherdoi:10.1186/s13643-018-0773-y
dc.identifier.urihttp://hdl.handle.net/10019.1/104204
dc.descriptionCITATION: Mato, E. P. M. et al. 2018. Genetic polymorphisms of organic cation transporters 1 (OCT1) and responses to metformin therapy in individuals with type 2 diabetes mellitus : a systematic review protocol. Systematic Reviews, 7:105, doi:10.1186/s13643-018-0773-y.
dc.descriptionThe original publication is available at https://systematicreviewsjournal.biomedcentral.com
dc.description.abstractBackground: Metformin is one of the most commonly used drugs for type 2 diabetes mellitus (T2DM). Despite its efficacy and safety, metformin is frequently associated with highly variable glycemic responses, which is hypothesized to be the result of genetic variations in its transport by organic cation transporters (OCTs). This systematic review aims to highlight and summarize the overall effects of OCT1 polymorphisms on therapeutic responses to metformin and to evaluate their potential role in terms of interethnic differences with metformin responses. Methods/design: We will systematically review observational studies reporting on the genetic association between OCT1 polymorphisms and metformin responses in T2DM patients. A comprehensive search strategy formulated with the help of a librarian will be used to search MEDLINE via PubMed, Embase, and CINAHL for relevant studies published between January 1990 and July 2017. Two review authors will independently screen titles and abstracts in duplicate, extract data, and assess the risk of bias with discrepancies resolved by discussion or arbitration of a third review author. Mined data will be grouped according to OCT1 polymorphisms, and their effects on therapeutic responses to metformin will be narratively synthesized. If sufficient numbers of homogeneous studies are scored, meta-analyses will be performed to obtain pooled effect estimates. Funnel plots analysis and Egger’s test will be used to assess publication bias. This study will be reported according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. Discussion: This review will summarize the genetic effects of OCT1 polymorphisms associated with variabilities in glycemic responses to metformin. The findings of this study could help to develop genetic tests that could predict a person’s response to metformin treatment and create personalized drugs with greater efficacy and safety. Systematic review registration: Registration number: PROSPERO, CRD42017079978
dc.description.urihttps://systematicreviewsjournal.biomedcentral.com/articles/10.1186/s13643-018-0773-y
dc.format.extent6 pages
dc.language.isoen
dc.publisherBioMed Central
dc.subjectGenetic polymorphismsen_ZA
dc.subjectDiabetes mellitusen_ZA
dc.titleGenetic polymorphisms of organic cation transporters 1 (OCT1) and responses to metformin therapy in individuals with type 2 diabetes mellitus : a systematic review protocolen_ZA
dc.typeArticle
dc.date.updated2018-07-29T03:35:27Z
dc.description.versionPublisher's version
dc.rights.holderAuthors retain copyright


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