Title : Beta2-adrenergic receptor genotype and pulmonary function in patients with heart failure.

Pub. Date : 2006 Nov

PMID : 17099033






4 Functional Relationships(s)
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1 METHODS: We studied baseline PF according to genetic variations of the ADRB2 at amino acid 16 (ie, arginine [Arg] or glycine [Gly]) in 126 CHF patients (mean [+/- SEM] age, 56 +/- 1 years; left ventricular ejection fraction [LVEF], 29 +/- 1%; body mass index [BMI], 28 +/- 0.4 kg/m2) and in 100 healthy control subjects (mean age, 50 +/- 2 years; LVEF, 63 +/- 0.7%; BMI, 25 +/- 0.3 kg/m2). Arginine adrenoceptor beta 2 Homo sapiens
2 METHODS: We studied baseline PF according to genetic variations of the ADRB2 at amino acid 16 (ie, arginine [Arg] or glycine [Gly]) in 126 CHF patients (mean [+/- SEM] age, 56 +/- 1 years; left ventricular ejection fraction [LVEF], 29 +/- 1%; body mass index [BMI], 28 +/- 0.4 kg/m2) and in 100 healthy control subjects (mean age, 50 +/- 2 years; LVEF, 63 +/- 0.7%; BMI, 25 +/- 0.3 kg/m2). Arginine adrenoceptor beta 2 Homo sapiens
3 CONCLUSIONS: These data suggest that genetic variation of the ADRB2 is associated with differences in PF in CHF patients but not in healthy subjects, which may be related to an increased susceptibility of the homozygous Arg subjects to agonist-mediated desensitization of ADRB2s in the lungs, or related to an influence of this polymorphism on cardiac diastolic properties. Arginine adrenoceptor beta 2 Homo sapiens
4 CONCLUSIONS: These data suggest that genetic variation of the ADRB2 is associated with differences in PF in CHF patients but not in healthy subjects, which may be related to an increased susceptibility of the homozygous Arg subjects to agonist-mediated desensitization of ADRB2s in the lungs, or related to an influence of this polymorphism on cardiac diastolic properties. Arginine adrenoceptor beta 2 Homo sapiens