No association between the common calcium-sensing receptor polymorphism rs1801725 and irritable bowel syndrome.
BMC Med Genet
; 16: 110, 2015 Dec 11.
Article
en En
| MEDLINE
| ID: mdl-26654249
ABSTRACT
BACKGROUND:
The calcium-sensing receptor (CaSR) is a calcium (Ca(2+)) sensitive G protein-coupled receptor implicated in various biological processes. In particular, it regulates Ca(2+)/Mg(2+)- homeostasis and senses interstitial Ca(2+) levels and thereby controls downstream signalling cascades. Due to its expression in the gut epithelium, the enteric nervous system and smooth muscles and its key function in regulation and coordination of muscular contraction and secretion, it represents an excellent candidate gene to be investigated in the pathophysiology of irritable bowel syndrome (IBS). Disturbed CaSR structure and function may impact gastrointestinal regulation of muscular contraction, neuronal excitation and secretion and consequently contribute to symptoms seen in IBS, such as disordered defecation as well as disturbed gut motility and visceral sensitivity.METHODS:
We have therefore genotyped the functional CASR SNP rs1801725 in three case control samples from the UK, Belgium and the USA.RESULTS:
Genotype frequencies showed no association in the three genotyped case-control samples, neither with IBS nor with IBS subtypes.CONCLUSIONS:
Although we could not associate the SNP to any of the established bowel symptom based IBS subtypes we cannot rule out association to altered Ca(2+) levels and disturbed secretion and gut motility which were unfortunately not assessed in the patients genotyped. This underlines the necessity of a more detailed phenotyping of IBS patients and control individuals in future studies.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Síndrome del Colon Irritable
/
Receptores Sensibles al Calcio
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
America do norte
/
Europa
Idioma:
En
Revista:
BMC Med Genet
Asunto de la revista:
GENETICA MEDICA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Alemania