Association of Serotonin Transporter Promoter Polymorphism (5-HTTLPR) with Microscopic Colitis and Ulcerative Colitis.
Dig Dis Sci
; 60(4): 887-94, 2015 Apr.
Article
em En
| MEDLINE
| ID: mdl-25532499
ABSTRACT
BACKGROUND:
Serotonin (5-HT) release and serotonin reuptake transporter (5-HTT) expression have been reported to be decreased in experimental colitis, in interleukin-10 knockout-associated colitis, and in patients with ulcerative colitis. Serotonin is known to play an important role in the pathogenesis of colitis, but individual genetic variants of 5-HTT gene in microscopic colitis and ulcerative colitis are not known.AIM:
This study aimed to evaluate the association between the serotonin transporter gene promoter polymorphism (5-HTTLPR) and 5-HT concentration in microscopic colitis (MC) and ulcerative colitis (UC) patients.METHOD:
This prospective case-control study included 41 patients with microscopic colitis (age 19-82 years, mean 35 ± 13.6), 75 patients with ulcerative colitis (age 16-65 years, mean 38.5 ± 11.6), and 100 controls (age 20-64 years, mean 38 ± 11). 5-HTTLPR gene polymorphism was studied by polymerase chain reaction-based assay. 5-HT levels were measured by ELISA.RESULTS:
The frequency of the 5-HTTLPR (SS) genotype was significantly lower in MC (12 %) patients compared to controls (30 %) (p < 0.05). When the L/L and L/S genotypes were combined into one group, the frequencies of the non-S genotype were significantly higher than those of S/S genotype between the MC patients and the controls (p < 0.05). 5-HT levels were significantly higher in UC and MC patients compared to healthy controls (p < 0.01).CONCLUSIONS:
A significant association was observed between LL genotype of 5-HTTLPR polymorphism and microscopic colitis, suggesting that 5-HTTLPR is a potential candidate gene involved in the pathogenesis of microscopic colitis. Serotonin levels were significantly higher in microscopic colitis and ulcerative colitis patients compared to healthy controls.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Colite Ulcerativa
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Colite Microscópica
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Proteínas da Membrana Plasmática de Transporte de Serotonina
Tipo de estudo:
Observational_studies
Limite:
Adolescent
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Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Dig Dis Sci
Ano de publicação:
2015
Tipo de documento:
Article