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Pimobendan hydrochloride
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Pimobendan hydrochloride鍥剧墖
CAS NO: 77469-98-8
瑙勬牸: 98%
鍒嗗瓙閲廁 370.83
鍖呰涓庝环鏍硷細
鍖呰 浠锋牸(鍏?
5mg 鐢佃
10mg 鐢佃
50mg 鐢佃
200mg 鐢佃

浜у搧浠嬬粛
Selective inhibitor of PDE3
CAS锛?7469-98-8
鍒嗗瓙寮忥細C19H19ClN4O2
鍒嗗瓙閲忥細370.83
绾害锛?8%
瀛樺偍锛歋tore at -20掳C

Background:

Pimobendan (hydrochloride) (UD-CG115 (hydrochloride)) is a selective inhibitor of PDE3 with IC50 of 0.32 渭M.


Pimobendan (UD-CG115) exhibits selective inhibition of PDE III isolated from guinea pig cardiac muscle with IC50 of 0.32 uM compared to the inhibition of PDE I and PDE II (IC50 >30 渭M). In human atrial cells, 100 渭M Pimobendan (UD-CG115) significantly increases the L-type calcium current (ICa(L)) (evoked by depolarization to +10 mV from a holding potential of -40 mV) by 250.4% with the half-maximal stimulation (EC50 ) of 1.13 渭M. In rabbit atrial cells, Pimobendan (UD-CG115) increases ICa(L) at +10 mV by 67.4.%, which is significantly lower than that obtained in human atrial cells.


Pimobendan (UD-CG115) shows a beneficial effect on survival in the murine model of EMC virus-induced myocarditis. Administration of Pimobendan (UD-CG115) significantly increases the final survival rate from 33.6% (control) to 53.3% (0.1 mg/kg) or 66.7% (1 mg/kg). Pimobendan (UD-CG115) (1 mg/kg) also significantly reduces myocardial cellular infiltration, the level of intracardiac tumor necrosis factor (TNF)-伪 and interleukin (IL)-1尾 compared with the control group, which shows no effect on myocardial necrosis, heart weight and body weight. Pimobendan (UD-CG115) suppresses expression of the intracardiac iNOS gene , causing reduction of intracardiac NO production[2].


鍙傝€冩枃鐚?
[1]. Kajimoto K, et al. Contribution of phosphodiesterase isozymes to the regulation of the L-type calcium current in human cardiac myocytes. Br J Pharmacol. 1997 Aug;121(8):1549-56.
[2]. Iwasaki A, et al. Pimobendan inhibits the production of proinflammatory cytokines and gene expression of inducible nitric oxide synthase in a murine model of viral myocarditis. J Am Coll Cardiol. 1999 Apr;33(5):1400-7.


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