Mechanism of inhibition of renin release by clonidine in rats. 1978

C Chevillard, and R Pasquier, and N Duchene, and J M Alexandre

In anaesthetized rats, the intracisternal injection of clonidine (1 microgram/kg) reduced mean arterial pressure (MAP), increased plasma renin concentration (PRC) while naphazoline (5 microgram/kg) was ineffective. The i.v. administration of clonidine (30 microgram/kg) still lowered MAP, but in this case, the drug decrease PRC, naphazoline (45 microgram/kg, i.v.) also reduced PRC. It is suggested that i.v. clonidine and naphazoline reduce renin release through activation of alpha-adrenoceptors within the kidney.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D008297 Male Males
D009278 Naphazoline An adrenergic vasoconstrictor agent used as a decongestant. AK-Con,Afazol Grin,Albalon,All Clear,Clear Eyes,Colirio Alfa,Idril,Miraclar,Nafazair,Naphazoline Hydrochloride,Naphazoline Monohydrochloride,Naphazoline Nitrate,Naphcon,Naphcon Forte,Optazine,Privin,Privine,Proculin,Siozwo,Tele-Stulln,VasoNit,Vasoclear,Vasocon,Vasocon Regular,Vasoconstrictor Pensa,AK Con,Hydrochloride, Naphazoline,Monohydrochloride, Naphazoline,Nitrate, Naphazoline,Pensa, Vasoconstrictor,Tele Stulln
D012083 Renin A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC 3.4.99.19. Angiotensin-Forming Enzyme,Angiotensinogenase,Big Renin,Cryorenin,Inactive Renin,Pre-Prorenin,Preprorenin,Prorenin,Angiotensin Forming Enzyme,Pre Prorenin,Renin, Big,Renin, Inactive
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002946 Cisterna Magna One of three principal openings in the SUBARACHNOID SPACE. They are also known as cerebellomedullary cistern, and collectively as cisterns. Magna, Cisterna
D003000 Clonidine An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION. Catapres,Catapresan,Catapressan,Chlophazolin,Clofelin,Clofenil,Clonidine Dihydrochloride,Clonidine Hydrochloride,Clonidine Monohydrobromide,Clonidine Monohydrochloride,Clopheline,Dixarit,Gemiton,Hemiton,Isoglaucon,Klofelin,Klofenil,M-5041T,ST-155,Dihydrochloride, Clonidine,Hydrochloride, Clonidine,M 5041T,M5041T,Monohydrobromide, Clonidine,Monohydrochloride, Clonidine,ST 155,ST155
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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