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Abstract:

The toll-like receptor 4 (TLR4) plays a key role in the activation of innate immune response participating in the recognition of lipopolysaccharides. Changes in the innate immune response are involved in the pathogenesis of some metabolic disorders such as metabolic syndrome and type 2 diabetes mellitus (Met-S and T2DM). It has been recently shown the role of gut microbiota in the perpetuation of both insulin resistance and low-grade chronic inflammation. Some studies have reported that TLR4 D299G polymorphism is associated with metabolic disorders, however results have been inconsistent. Two recent meta-analyses showed that D299G is associated with inflammatory bowel disease and gastrointestinal cancers risk, two pathological states in which the luminal microbial flora-host cells interaction may be implicated. We conducted a systemic review of the published data considering all eligible published studies (six studies with 1696 cases and 3388 controls for D299G) and a meta-analysis was performed to evaluate the association between TLR4 D299G polymorphism and the risk for metabolic disorders. Five studies were identified for T2DM: three corresponding to Caucasian populations and two to mixed populations. The remaining study analyzed Met-S in a Caucasian population. We observed a significant association between D299G polymorphism and metabolic disorders (T2DM and Met-S) risk (OR = 0.566, 95 % CI: 0.347-0.925, p = 0.023) particularly in Caucasians. No association was found in mixed population subgroup. Our meta-analysis identified that the AG/GG genotypes of D299G are associated with decreased metabolic disorders risk. © 2012 Springer Science+Business Media Dordrecht.

Registro:

Documento: Artículo
Título:Toll-like receptor 4 D299G polymorphism in metabolic disorders: A meta-analysis
Autor:S. Belforte, F.; Coluccio Leskow, F.; Poskus, E.; Penas Steinhardt, A.
Filiación:Laboratorio de Biología Molecular, INIGEM CONICET-UBA and Cátedra de Genética y Bilogía Molecular, Universidad de Buenos Aires, Buenos Aires, Argentina
Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Lujan, Ruta 7 y Av. Constitución, Luján Buenos Aires, Argentina
Instituto de Estudios de la Inmunidad Humoral (IDEHU), CONICET-UBA and Cátedra de Inmunología, Universidad de Buenos Aires, Buenos Aires, Argentina
División Endocrinología, Hospital de Clínicas, Universidad de Buenos Aires (UBA), Junín 956, 4 piso (1113), Buenos Aires, Argentina
Palabras clave:D299G; Diabetes; Meta-analysis; Metabolic syndrome; Polymorphism; TLR4; toll like receptor 4; article; Caucasian; cell interaction; Crohn disease; digestive system cancer; disease association; enteritis; ethnicity; gene frequency; geographic distribution; human; metabolic disorder; non insulin dependent diabetes mellitus; protein polymorphism; systematic review; ulcerative colitis; Diabetes Mellitus, Type 2; European Continental Ancestry Group; Genetic Predisposition to Disease; Humans; Immunity, Innate; Inflammatory Bowel Diseases; Insulin Resistance; Lipopolysaccharides; Metabolic Syndrome X; Phenotype; Polymorphism, Single Nucleotide; Risk Factors; Toll-Like Receptor 4
Año:2013
Volumen:40
Número:4
Página de inicio:3015
Página de fin:3020
DOI: http://dx.doi.org/10.1007/s11033-012-2374-5
Título revista:Molecular Biology Reports
Título revista abreviado:Mol. Biol. Rep.
ISSN:03014851
CODEN:MLBRB
CAS:toll like receptor 4, 203811-83-0; Lipopolysaccharides; Toll-Like Receptor 4
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03014851_v40_n4_p3015_SBelforte

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Citas:

---------- APA ----------
S. Belforte, F., Coluccio Leskow, F., Poskus, E. & Penas Steinhardt, A. (2013) . Toll-like receptor 4 D299G polymorphism in metabolic disorders: A meta-analysis. Molecular Biology Reports, 40(4), 3015-3020.
http://dx.doi.org/10.1007/s11033-012-2374-5
---------- CHICAGO ----------
S. Belforte, F., Coluccio Leskow, F., Poskus, E., Penas Steinhardt, A. "Toll-like receptor 4 D299G polymorphism in metabolic disorders: A meta-analysis" . Molecular Biology Reports 40, no. 4 (2013) : 3015-3020.
http://dx.doi.org/10.1007/s11033-012-2374-5
---------- MLA ----------
S. Belforte, F., Coluccio Leskow, F., Poskus, E., Penas Steinhardt, A. "Toll-like receptor 4 D299G polymorphism in metabolic disorders: A meta-analysis" . Molecular Biology Reports, vol. 40, no. 4, 2013, pp. 3015-3020.
http://dx.doi.org/10.1007/s11033-012-2374-5
---------- VANCOUVER ----------
S. Belforte, F., Coluccio Leskow, F., Poskus, E., Penas Steinhardt, A. Toll-like receptor 4 D299G polymorphism in metabolic disorders: A meta-analysis. Mol. Biol. Rep. 2013;40(4):3015-3020.
http://dx.doi.org/10.1007/s11033-012-2374-5