Biomaterial Database

Desamino-8D-arginine vasopressin treatment of Brattleboro rats: effect on sensitivity to pressor hormones. 1994

J F Laycock

Department of Physiology, Charing Cross and Westminster Medical School, London, UK.

The cardiovascular effects of intravenous injections of vasopressin, angiotensin II and noradrenaline were studied in anaesthetized adult male Brattleboro rats with hereditary diabetes insipidus on lifelong treatment with the vasopressin V2 receptor agonist desamino-8D-arginine vasopressin in the drinking fluid, which restored fluid input and output to normal rat values. The pressor response to 20 ng.kg-1 vasopressin was significantly greater (P < 0.005) in the vasopressin V2 receptor agonist-treated rats than in the control animals, but the responses to all higher doses of the peptide were comparable. Doses of noradrenaline from 40 to 160 ng.kg-1 had similar pressor effects in the treated and control rats, while the pressor response to the highest dose of noradrenaline (320 ng.kg-1) was significantly lower (P < 0.01) in the vasopressin V2 receptor agonist-treated rats. Furthermore the pressor responses to all three doses of angiotensin II (40, 80 and 160 ng.kg-1) were significantly attenuated in the treated rats compared to the control group (P < 0.001, P < 0.05 and P < 0.0005 respectively), as were the decreases in heart rate (P < 0.005 at 40 ng.kg-1, P < 0.01 at 80 ng.kg-1). The hypovolaemic stimulus induced by a blood loss of 20 ml.kg-1 resulted in a lower mean arterial blood pressure initially in the treated Brattleboro rats, but subsequent recovery was similar in both treated and control groups.(ABSTRACT TRUNCATED AT 250 WORDS)

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009638	Norepinephrine	Precursor of epinephrine that is secreted by the ADRENAL MEDULLA and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers, and of the diffuse projection system in the brain that arises from the LOCUS CERULEUS. It is also found in plants and is used pharmacologically as a sympathomimetic.	Levarterenol,Levonorepinephrine,Noradrenaline,Arterenol,Levonor,Levophed,Levophed Bitartrate,Noradrenaline Bitartrate,Noradrénaline tartrate renaudin,Norepinephrin d-Tartrate (1:1),Norepinephrine Bitartrate,Norepinephrine Hydrochloride,Norepinephrine Hydrochloride, (+)-Isomer,Norepinephrine Hydrochloride, (+,-)-Isomer,Norepinephrine d-Tartrate (1:1),Norepinephrine l-Tartrate (1:1),Norepinephrine l-Tartrate (1:1), (+,-)-Isomer,Norepinephrine l-Tartrate (1:1), Monohydrate,Norepinephrine l-Tartrate (1:1), Monohydrate, (+)-Isomer,Norepinephrine l-Tartrate (1:2),Norepinephrine l-Tartrate, (+)-Isomer,Norepinephrine, (+)-Isomer,Norepinephrine, (+,-)-Isomer
D011910	Rats, Brattleboro	A mutant strain of Rattus norvegicus used in research on renal function and hypertension and as a disease model for diabetes insipidus.	Brattleboro Rats
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
D003894	Deamino Arginine Vasopressin	A synthetic analog of the pituitary hormone, ARGININE VASOPRESSIN. Its action is mediated by the VASOPRESSIN receptor V2. It has prolonged antidiuretic activity, but little pressor effects. It also modulates levels of circulating FACTOR VIII and VON WILLEBRAND FACTOR.	Desmopressin,Vasopressin, Deamino Arginine,1-Deamino-8-D-arginine Vasopressin,1-Desamino-8-arginine Vasopressin,Adiuretin,Adiuretin SD,Apo-Desmopressin,DDAVP,Desmogalen,Desmopressin Acetate,Desmopressin Monoacetate,Desmopressin Monoacetate, Trihydrate,Desmopressine Ferring,Desmospray,Desmotabs,Minirin,Minurin,Nocutil,Octim,Octostim,Acetate, Desmopressin,Arginine Vasopressin, Deamino,Ferring, Desmopressine,Monoacetate, Desmopressin,Monoacetate, Trihydrate Desmopressin,Trihydrate Desmopressin Monoacetate,Vasopressin, 1-Deamino-8-D-arginine,Vasopressin, 1-Desamino-8-arginine
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004327	Drinking Behavior	Behaviors associated with the ingesting of water and other liquids; includes rhythmic patterns of drinking (time intervals - onset and duration), frequency and satiety.	Behavior, Drinking,Behaviors, Drinking,Drinking Behaviors
D005260	Female		Females
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006728	Hormones	Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various ENDOCRINE GLANDS and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects.	Hormone,Hormone Receptor Agonists,Agonists, Hormone Receptor,Receptor Agonists, Hormone