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1.
Braz. j. med. biol. res ; 42(6): 487-493, June 2009. ilus, tab
Article in English | LILACS | ID: lil-512759

ABSTRACT

We investigated the effect of the -278A>C polymorphism in the CYP7A1 gene on the response of plasma lipids to a reduced-fat diet for 6 to 8 weeks in a group of 82 dyslipidemic males with a mean age of 46.0 ± 11.7 years. Individuals who presented at least one high alteration in total cholesterol, low-density lipoprotein cholesterol or triglyceride values were considered to be dyslipidemic. Exclusion criteria were secondary dyslipidemia due to diabetes mellitus, renal, liver, or thyroid disease. None of the subjects were using lipid-lowering medication. Baseline and follow-up lipid concentrations were measured. The genotypes were determined by the digestion of PCR products with the BsaI restriction endonuclease. There were statistically significant reductions in plasma total cholesterol, low-density lipoprotein cholesterol and triglyceride concentrations after dietary intervention. The minor allele C has a frequency of 43 percent. Carriers of the C allele had significantly lower triglyceride concentrations (P = 0.02) than AA homozygotes. After adjustment of covariates, subjects with the AC and CC genotypes showed a greater reduction in triglyceride concentrations compared to subjects with the AA genotype. Multiple linear regression analyses showed that the AC and CC CYP7A1 genotypes accounted for 5.2 and 6.2 percent of triglyceride concentration during follow-up and adjusted percent of change of triglyceride concentration, respectively. The present study provides evidence that -278A>C polymorphism in the CYP7A1 gene can modify triglyceride concentrations in response to a reduced fat diet in a dyslipidemic male population. This gene represents a potential locus for a nutrigenetic directed approach.


Subject(s)
Adult , Humans , Male , Middle Aged , /genetics , Diet, Fat-Restricted , Dyslipidemias/enzymology , Polymorphism, Genetic/genetics , Triglycerides/blood , Body Mass Index , Dyslipidemias/blood , Dyslipidemias/diet therapy , Gene Frequency , Genotype , Lipids/blood , Promoter Regions, Genetic , Prospective Studies
2.
GED gastroenterol. endosc. dig ; 21(5): 221-223, set.-out. 2002. ilus
Article in Portuguese | LILACS | ID: lil-334761

ABSTRACT

O divertículo de Zenker é uma alteração da anatomia esofágica que acomete adultos de idade avançada, caracterizadao pela presença de um divertículo posterior, proximal ao músculo cricofaríngeo. De forma precoce, apresenta-se como disfagia transitória e, como o evoluir da doença, como sensação de massa no pescoço e regurgitação. seu tratamento pode ser realizado por endoscopia flexível ou por correção cirúrgica através de miotomia cricofaríngea com diverticulectomia. O objetivo deste trabalhoo é relatar uma possível complicação do tratamento do divertículo de Zenker por endoscopia flexível. Descreve-se o caso de uma paciente feminina, 83 anos, portadora de divertículo de Zenker com início da sintomatologia havia seis meses, submetida a diverticulotomia endoscópica e que algumas horas após o procedimento evoluiu dor e efisema subcutâneo bilateral em região cervical. Esofagografia com contrate iodado evidenciou extravasamento em região cervical. Foi então, instituido manejo conservador, com alta hospitalar assintomática no sexto dia pós-procedimento. Portanto, apesar de considera modalidade de tratamento segura, a diverticulotomia endoscópica não é isenta de riscos


Subject(s)
Humans , Female , Aged , Zenker Diverticulum/therapy , Endoscopy , Esophagus/injuries , Zenker Diverticulum/complications
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