Effects induced by Tityus serrulatus scorpion venom and its toxins TsTX-I and TsTX-V on the rat isolated retractor penis muscle.

abstract：:Angiotensin had a dual action on the epididymal half of rat vas deferens. It potentiated electrical stimulated contraction and exerted a direct contractile effect on the muscle. The potentiation of electrically stimulated response may be mediated by presynaptic facilitation of neurotransmitter release. Muscular contra...

journal_title：Pharmacology

authors： Sum CS,Cheung WT

更新日期：1995-08-01 00:00:00

abstract：:A dose-dependent contractile effect of substance P (SP) on the isolated, everted rat portal vein was competitively inhibited by two selective SP antagonists (pro2, phe7, trp9)-SP and (pro4, trp7,9)-SP 4-11. Phentolamine, atropine, methysergide, mepyramine, cimetidine, Sar1, Ile8-angiotensin II, Leu8, des-Arg9-bradykin...

journal_title：Pharmacology

authors： Mastrangelo D,Mathison R,Huggel H

更新日期：1983-01-01 00:00:00

abstract：:Under the specific conditions reported for the separate tests delta9-tetrahydrocannabinol (THC) did not elicit a mutagenic response in microbial and eukaryotic in vitro test systems. THC treatment to histidine auxotrophs of Salmonella typhimurium strains TA 98 (susceptible to frame shift mutation) and TA 100 (suscepti...

journal_title：Pharmacology

authors： Zimmerman AM,Stich H,San R

更新日期：1978-01-01 00:00:00

abstract：OBJECTIVE:To study the myocardial benefit effect and mechanism of paeoniflorin on myocardial ischemia reperfusion injury (MIRI) in rats. METHODS:Hundred SD rats were randomly divided into 5 groups: sham group, model group, Paeoniflorin (15 mg/kg) group, Paeoniflorin (30 mg/kg) group, and Paeoniflorin (60 mg/kg) group....

journal_title：Pharmacology

authors： Wu F,Ye B,Wu X,Lin X,Li Y,Wu Y,Tong L

更新日期：2020-01-01 00:00:00

abstract：:We investigated the effects of vinconate and pentobarbital against the alterations in spirodecanone binding in the gerbil striatum and hippocampus 5 h and 7 days after 10 min of cerebral ischemia, using receptor autoradiography. Vinconate and pentobarbital were given intraperitoneally 10 and 30 min prior to ischemic i...

journal_title：Pharmacology

authors： Murakami F,Araki T,Kanai Y,Kato H,Fujiwara T,Kogure K

更新日期：1994-11-01 00:00:00

abstract：:A calcitonin preparation derived from porcine thyroid glands exhibited potentiating activity on the steroidogenic action not only on ACTH-(1-24) but also of ACTH-(1-18) in isolated rat adrenal cells in vitro. This activity was demonstrated in various molecular weight fractions resulting from gel filtration of the prep...

journal_title：Pharmacology

authors： Iida S,Itoh Y,Moriwaki K

更新日期：1982-01-01 00:00:00

abstract：:Mast cells from different locations are shown to vary in their histochemical, ultrastructural, cytochemical and functional properties. The clinical consequences of this heterogeneity and possible reasons for its origin are discussed. ...

journal_title：Pharmacology

authors： Pearce FL

更新日期：1986-01-01 00:00:00

abstract：:The effects of sammarium (Sm3+) on drug responsiveness of the isolated guinea pig ileum were studied. The lanthanid at the concentration of 2x10(-4) M reduced responsiveness to acetylcholine, histamine and submaximal concentrations of potassium. The maximum response to potassium and the responsiveness to barium remain...

journal_title：Pharmacology

authors： Turrin MA,De Moraes S

更新日期：1977-01-01 00:00:00

abstract：:The calcium channel antagonist, nifedipine (0.1 microM), only slightly inhibited the response to the full alpha 1-adrenoceptor agonist, (-)-norepinephrine, in rat aorta, but nearly completely inhibited the response to the partial alpha 1-adrenoceptor agonist, (-)-dobutamine, indicating that (-)-norepinephrine primaril...

journal_title：Pharmacology

authors： Oriowo MA,Ruffolo RR Jr

更新日期：1992-01-01 00:00:00

abstract：:As a major Ca(2+) source for muscle contraction, the sarcoplasmic reticulum (SR) of skeletal muscle maintains its Ca(2+) content by uptake of myoplasmic Ca(2+) and by replenishment with extracellular Ca(2+). Since transection of motor nerve alters the functions of SR Ca(2+) pump and sarcolemma ion channels, this study...

journal_title：Pharmacology

authors： Hong SJ,Liang HC,Shen CJ

更新日期：2005-03-01 00:00:00

abstract：:The effects of the novel antihypertensive agent, carvedilol, on renal hemodynamics and excretory function have been investigated and compared with the effects of labetalol in conscious, spontaneously hypertensive rats. Sustained intravenous infusion of carvedilol or labetalol at a rate of 10 micrograms/kg/min resulted...

journal_title：Pharmacology

authors： Gellai M,DeWolf R,Ruffolo RR Jr

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Periplaneta americana is one of the ancient insect groups with the strongest vitality. Periplaneta americana extract (PAE) has been explored as an alternative remedy for many diseases. Although much progress has been made in the study about PAE, the role of the drug in renal disease is rarely reported, espec...

journal_title：Pharmacology

authors： Liu J,Zhou L,He L,Zhong Y,Zhang X,Xiao B,Liu G

更新日期：2018-01-01 00:00:00

abstract：:High-affinity (104 +/- 18 pmol/l) and high-density (204 +/- 25 fmol/mg) angiotensin II (AII) binding sites have been identified in Xenopus laevis heart membranes. Competition binding of [125I]Sar1,Ile8 angiotensin (SIA) to these receptors by peptide analogs selective for the mammalian AII receptor subtypes AT1 and AT2...

journal_title：Pharmacology

authors： Aiyar N,Baker E,Pullen M,Nuthulaganti P,Bergsma DJ,Kumar C,Nambi P

更新日期：1994-04-01 00:00:00

abstract：:The effect of atropine sulfate, trihexyphenidyl HCl, benztropine mesylate, diphenhydramine HCl and ethopropazine HCl on gastric emptying and intestinal transit of a phenol red solution in the rat was examined. Intraperitoneal administration of 0.3 mg/kg atropine, 1.2 mg/kg benztropine and trihexyphenidyl results in a ...

journal_title：Pharmacology

authors： Feldman S,Putcha L

更新日期：1977-01-01 00:00:00

abstract：BACKGROUND/AIMS:The in vivo metabolic profile of a benzopyridooxathiazepine (BPT) derivative, a potent tubulin polymerization inhibitor with a promising in vitro activity, was investigated. METHODS:The quantification of the BPT derivative and the identification of metabolites in the plasma of Wistar rats after i.p. an...

journal_title：Pharmacology

authors： Bourdon F,Lecoeur M,Lebègue N,Gressier B,Luyckx M,Odou P,Dine T,Goossens JF,Kambia N

更新日期：2014-01-01 00:00:00

abstract：:The present study examined the interaction of opioidergic systems in the hypotensive action of atenolol. Anesthetized, adult spontaneously hypertensive (SHR) and Wistar Kyoto (WKY) rats were instrumented to monitor blood pressure and heart rate. Atenolol (100 micrograms/kg, i.v.) produced a decrease in blood pressure ...

journal_title：Pharmacology

authors： Laskey RE,Jones LF,Tackett RL

更新日期：1989-01-01 00:00:00

abstract：:The activity of myocardial adenylate cyclase from two age groups (10-11 and 18-19 weeks old, respectively) of male spontaneously hypertensive rats (SHR) and their age-matched normotensive Wistar-Kyoto rats (WKY) was examined. Stimulation of the enzyme by isoproterenol and 5'-guanylyl-imidodiphosphate (GMP-PNP) was dec...

journal_title：Pharmacology

authors： Chiu TH

更新日期：1981-01-01 00:00:00

abstract：:The effect of promethazine on the metabolic responsiveness of human polymorphonuclear leukocytes to opsonized zymosan was evaluated by chemiluminescence (CL) assay under the following situations: (1) preincubation of granulocytes with promethazine; (2) simultaneous addition of zymosan and promethazine, and (3) additio...

journal_title：Pharmacology

authors： Trush MA,Van Dyke K

更新日期：1978-01-01 00:00:00

abstract：:Fructose-1,6-diphosphate (FDP) was found to cause significant stimulation of nitric oxide synthase (NOS) in rat liver homogenates in vitro. This effect was more pronounced for the inducible isoform than its constitutive counterpart. Furthermore, FDP restored rat liver inducible NOS levels following their depletion by ...

journal_title：Pharmacology

authors： Mihas AA,Maliakkal RJ,Mihas TA,Kanji VK,Markov AK

更新日期：1997-01-01 00:00:00

abstract：BACKGROUND/AIMS:In this study, we evaluated the functional impact of facilitatory presynaptic adenosine A2A and muscarinic M1 receptors in the recovery of neuromuscular tetanic depression caused by the blockage of high-affinity choline transporter (HChT) by hemicholinium-3 (HC-3), a condition that mimics a myasthenia-l...

journal_title：Pharmacology

authors： Castellão-Santana LM,Yumi Abiko P,Ambiel CR,Peixoto AR,Noronha-Matos JB,Correia-de-Sá P,Alves-Do-Prado W

更新日期：2019-01-01 00:00:00

abstract：:The H2-antagonist tiotidine inhibited the H2-receptor-mediated, histamine-induced increase in cyclic AMP in dispersed mucosal cells from guinea pig stomach (Ki, 4 X 10(-8) M). The radiolabeled [3H]-tiotidine bound specifically and reversibly to the same cells with a half-maximal binding occurring at 5 X 10(-7) M tioti...

journal_title：Pharmacology

authors： Batzri S,Harmon JW

更新日期：1986-01-01 00:00:00

abstract：:The effect of repeated administration of U-50,488H, a kappa-opioid receptor agonist, on the development of tolerance to its analgesic effect and on the 5-HT1 and 5-HT2 receptors in the cerebral cortex and spinal cord of the rat were determined. Male Sprague-Dawley rats were injected twice daily with U-50,488H, (25 mg/...

journal_title：Pharmacology

authors： Gulati A,Ramarao P,Bhargava HN

更新日期：1989-01-01 00:00:00

abstract：:Opioid antagonists have been shown to prevent the occurrence of lethal arrhythmias following coronary reperfusion. In this study, we have examined the effect of a new, long-lasting, potent opioid antagonist, nalmefene, and congeners in the prevention of reperfusion arrhythmias in dogs. Nalmefene given at a dose of 1 m...

journal_title：Pharmacology

authors： Caldwell RW,Nagarajan R,Chryssanthis A,Tuttle RR

更新日期：1990-01-01 00:00:00

abstract：:The cardioprotective effects of (2S,3R,4S)-N'-benzyl- N"-cyano-N-(3,4-dihydro-2-dimethoxymethyl-3-hydro- xy-2-methyl-6-nitro-2H-benzopyran-4-yl)-guanidine (KR-31372) were evaluated against ischemic/reperfusion injury in isolated rat hearts in vitro and in anesthetized rats and dogs in vivo. In isolated perfused rat he...

journal_title：Pharmacology

authors： Lee BH,Seo HW,Yoo SE

更新日期：2004-02-01 00:00:00

abstract：:We examined the properties of the drug interaction between morphine and 5-HT(3) receptor antagonist at the spinal level. The nociceptive state was induced by subcutaneously injecting formalin solution (5%, 50 microl) into the hindpaw of the rats. Intrathecal morphine and m-CPBG (5-HT(3) receptor agonist) dose-dependen...

journal_title：Pharmacology

authors： Yoon MH,Bae HB,Choi JI,Kim SJ,Chung ST,Kim CM

更新日期：2006-01-01 00:00:00

abstract：:In a randomized three-phase crossover study, 12 healthy male volunteers were given three 12-hourly 500-mg doses of erythromycin base, as enteric coated pellets in capsules (2 X 250 mg), erythromycin stearate tablet (1 X 500 mg), or erythromycin ethylsuccinate sachet (1 X 500 mg). The reaction time after administration...

journal_title：Pharmacology

authors： Tjandramaga TB,Van Hecken A,Mullie A,Verbesselt R,De Schepper PJ,Verbist L,Josefsson K

更新日期：1984-01-01 00:00:00

abstract：:The effects of several paired analogs of angiotensin II and angiotensin III, designed as antagonists, have been compared in isolated smooth muscle (rat uterus) and by in vivo rat blood pressure assay. These analogs were (1) the angiotensin II series: (1-sarcosine, 7-X, 8-isoleucine-) angiotensin II, and (2) the angiot...

journal_title：Pharmacology

authors： Moore GJ,Ko EM

更新日期：1980-01-01 00:00:00

abstract：:Five healthy subjects performed submaximal physical exercise approximately 20 h after a single oral dose of phenytoin (5 mg/kg of the sodium salt). The plasma levels of free fatty acids (FFA) increased 2- to 3-fold in the post-exercise period. In spite of this, the degree of plasma binding of phenytoin and its total c...

journal_title：Pharmacology

authors： Borgå O,Juhlin-Dannfeldt A,Dahlqvist R

更新日期：1978-01-01 00:00:00

abstract：:Induction of endogenous superoxide anion stress by the use of the superoxide dismutase inhibitor diethylthiocarbamate (DETCA; 10 mmol/l) produced a potent inhibition of the ATP (0.3-10 mmol/l) and diadenosine tetraphosphate (AP(4)A) contractile activity in the isolated vas deferens by 29-92 and 24-90%, respectively. P...

journal_title：Pharmacology

authors： Al-Rawi MB,Aleisa AM,Khattab MM

更新日期：2008-01-01 00:00:00

abstract：:Rat intestinal transit was determined 30, 60, 150 and 270 min after morphine sulfate or saline given either subcutaneously (s.c.), intraduodenally (i.d.) or intracerebroventricularly (i.c.v.). In addition, two popular methods of quantifying the progression of a radioactive marker along the bowel, the intercept and geo...

journal_title：Pharmacology

authors： Stewart JJ

更新日期：1984-01-01 00:00:00