Abstract：
:In the present study, we examined the potential impact of a T-to-C substitution at nucleotide 1519 of the GABA(A)alpha6 receptor subunit gene (GABRA6) on obesity and obesity-related phenotypes as well as circulating hormones, including salivary cortisol, in 284 unrelated Swedish men born in 1944. The subjects were genotyped by using PCR amplification followed by digestion with the restriction enzyme AlwNI. The frequency of allele T was 0.54 and that of allele C was 0.46. Carriers for the T allele (n = 211) had higher waist-to-hip ratio (p = 0.094) and abdominal sagittal diameter (p = 0.084) compared to homozygotes for the C allele (n = 56). The homozygotes for the T allele had, in comparison to heterozygotes, significantly (p = 0.004-0.024) higher mean cortisol levels at 11:45 am; at 30, 45, and 60 min after a standardized lunch; and finally at 5:00 pm. In addition, T/T subjects had significantly (p = 0.031) higher diurnal cortisol secretion compared to T/C subjects. Leptin, insulin, and glucose were not different across the genotype groups. In conclusion, these findings suggest a role of the point substitution (T-to-C) at nucleotide 1519 of GABRA6 in the predisposition to hypercortisolism and perhaps abdominal obesity. The pathophysiology may involve various environmental factors, particularly stress, that destabilize the GABA-hypothalamic-pituitary-adrenal systems in those with genetic vulnerability.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Rosmond R,Bouchard C,Björntorp Pdoi
10.1111/j.1749-6632.2002.tb04318.xsubject
Has Abstractpub_date
2002-06-01 00:00:00pages
566-70eissn
0077-8923issn
1749-6632journal_volume
967pub_type
杂志文章abstract：:The development of an integrated system for the continuous, automated production of pure cell culture derived proteins is discussed. The system comprises a cell culture subunit for the continuous culture of mammalian cells and a purification subunit linked on-line to the cell culture subunit. The cells are compartment...
journal_title：Annals of the New York Academy of Sciences
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journal_title：Annals of the New York Academy of Sciences
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journal_title：Annals of the New York Academy of Sciences
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journal_title：Annals of the New York Academy of Sciences
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journal_title：Annals of the New York Academy of Sciences
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journal_title：Annals of the New York Academy of Sciences
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