Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2003
[Study on the total activity of PKC and the quantity of PKC (alpha, beta) in left auricle tissues of the patients with mitral disease and atrial fibrillation].
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Cao Ge, Xiao Xijun, Xu Yanhua, Fu Mingde, Nie Liangming
Аннотация
OBJECTIVE: To investigate the possible relation of atrial fibrillation (AF) with the total activity of protein kinase C (PKC) and the quantity of PKC (alpha, beta) in the left auricle tissues of the patients with mitral disease.
METHODS: Thirty-five patients hospitalized for valve replacement surgery were divided into four groups: group A (simple mitral stenosis with AF), group B(simple mitral stenosis with sinus rhythm), group C(simple mitral regurgitation with AF), group D (simple mitral regurgitation with sinus rhythm), The total PKC, activity and the quantity of PKC alpha and PKC beta were measured and compared in an attempt to find out whether significant difference exists between the groups.
RESULTS: There was no significant difference in total PKC activity between the four groups (P > 0.05). The quantity of PKC alpha in patients with AF was lower than that in patients with sinus rhythm, the quantity of PKC beta in patients with AF was higher than in patients with sinus rhythm. But these differences were not statistically significant (P > 0.05).
CONCLUSION: Under conditions of the same rhythm and the same heart disease, the total PKC activity and the quantity of PKC (alpha, beta) of the four groups showed no significant difference. No obvious relation was seen between the total activity of PKC in left auricle tissue and the occurrence of AF in patients with mitral disease, but more research on the relation between AF and the quantity of PKC isoforms in left auricle tissues would be needed.
METHODS: Thirty-five patients hospitalized for valve replacement surgery were divided into four groups: group A (simple mitral stenosis with AF), group B(simple mitral stenosis with sinus rhythm), group C(simple mitral regurgitation with AF), group D (simple mitral regurgitation with sinus rhythm), The total PKC, activity and the quantity of PKC alpha and PKC beta were measured and compared in an attempt to find out whether significant difference exists between the groups.
RESULTS: There was no significant difference in total PKC activity between the four groups (P > 0.05). The quantity of PKC alpha in patients with AF was lower than that in patients with sinus rhythm, the quantity of PKC beta in patients with AF was higher than in patients with sinus rhythm. But these differences were not statistically significant (P > 0.05).
CONCLUSION: Under conditions of the same rhythm and the same heart disease, the total PKC activity and the quantity of PKC (alpha, beta) of the four groups showed no significant difference. No obvious relation was seen between the total activity of PKC in left auricle tissue and the occurrence of AF in patients with mitral disease, but more research on the relation between AF and the quantity of PKC isoforms in left auricle tissues would be needed.