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Acta Pharmacologica Sinica 2002年第1期23卷 25-28页

作者： isabella topno,mohammed asad,deepak gopal shewade,chanolean shashindran,subramanyan ramaswamy Department of Pharmacology Jawaharlal Institute of Post-graduate Medical Education and Research Pondicherry-605006 India Department of Pharmacology Jawaharlal Institute of Post-graduate Medical Education and Research Pondicherry-605006 India Department of Pharmacology Jawaharlal Institute of Post-graduate Medical Education and Research Pondicherry-605006 India Department of Pharmacology Jawaharlal Institute of Post-graduate Medical Education and Research Pondicherry-605006 India Department of Pharmacology Jawaharlal Institute of Post-graduate Medical Education and Research Pondicherry-605006 India

To study the anti-nociceptive effect of domper-idone and cisapride in mice. METHODS: Initially, the effect of these drugs on motor activity was tested using rotarod. The anti-nociception was tested using chemical and mechanical assay. In the chemical assay, the number of abdominal constrictions either in the saline treated animals or in the domperidone/cisapride (1, 5, or 10 mg/kg either po or ip) treated mice, were recorded for a period of 30 min after acetic acid challenge (10 mLAg, of 0.6 % acetic acid ip). In the tail clip assay, the time taken by the mouse to make attempts to dislodge the bulldog clamp placed at the tail (reaction time) was recorded with a cut off time of 30 s. The role of opioid pathways was examined by pretreating the animals with naloxone (1 mg/kg, ip) 30 min prior to domperidone and cisapride. RESULTS: Domperidone and cisapride, both reduced the number of abdominal constrictions when given orally or intraperitoneally. Domperidone (5 mg/kg) inhibited it to the extent of 57.0 % a

关键词：多潘立酮西沙必利镇痛药醋酸类纳洛酮

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An inherent acceleratory effect of insulin on small intestinal transit and its pharmacological characterization in normal mice

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World Journal of Gastroenterology 2006年第16期12卷 2593-2600页

作者： Murali Krishna Reddy Peddyreddy Steven Aibor Dkhar Subramanian ramaswamy Amrithraj Theophilus Naveen deepak gopal shewade Department of Pharmacology Jawaharlal Institute of Postgraduate Medical Education and ResearchPondicherry-605006India Department of Pharmacology Aarupadai Veedu Medical CollegePondicherry-607 402India Department of Pharmacy Mbarara University of Science and TechnologyMbararaUganda

AIM： To study an inherent effect of insulin on small intestinal transit and to explore involvement of various systems/mechanisms in normal mice. METHODS： Insulin at the doses of 2 μU/kg, 2 mU/kg, 2 U/kg or vehicle was subcutaneously administered to four groups of overnight fasted normal male mice. Blood glucose （BG） levels were measured 2 min before insulin administration and 2 min before sacrificing the animals for the measurement of small intestinal transit （SIT）. Charcoal meal was administered （0.3 mL） intragastrically 20 min after insulin administration and animals were sacrificed after 20 min and SIT was determined. For exploration of the various mechanisms involved in insulin-induced effect on SIT, the dose of insulin which can produce a significant acceleration of SIT without altering BG levels was determined. The following drugs, atropine （1 mg/kg）, clonidine （0.1 mg/kg）, ondansetron （1 mg/kg）, naloxone （5 mg/kg）, verapamil （8 mg/kg） and glibenclamide （10 mg/kg）, were administered intravenously 10 min prior to the administration of insulin （2 μU/kg）. RESULTS： The lower doses of insulin （2 μU/kg and 2 mU/kg） produced a significant acceleration of SIT from 52.0% to 70.7% and 73.5% without lowering blood glucose levels （P〈0.01）, while the highest dose of insulin （2 U/kg） produced a fall in blood glucose levels which was also associated with significant acceleration of SIT （P〈0.01）. After pretreatment of insulin （2 μU/kg） group with atropine, insulin could reverse 50% of the inhibition produced by atropine. In clonidine-pretreated group, insulin administration could reverse only 37% of the inhibition produced by clonidine and inhibition of SIT was significant compared with vehicle ＋ insulintreated group, i.e. from 74.7% to 27.7% （P〈0.01）. In ondansetron-pretreated group, insulin administration could produce only mild acceleration of SIT （23.5%）. In naloxone-pretreated group, insulin administration could significantly reverse the inhibition of SIT produced by nal

关键词： Adrenergic system Blood glucose levels Ca2^+ channels Cholinergic system Insulin Intestinal transit Opioid system Serotonergic system

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脑室注射催产素对大鼠胃和十二指肠溃疡的作用

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Acta Pharmacologica Sinica 2001年第6期22卷 12-16页

作者： mohammed AS AD, deepak gopal shewade, Kallasam KOUMARAVELOU, Benny K ABRAHAM, Sadashivam VASU, Subramanian ramaswamy (Department of Pharmacology, Jawaharlal Institute of Post-graduate Medical Education and Research, Pondicherry 605 006, India) Jawaharlal Institute of Post-graduate Medical Education and Research 印度

INTRODUCTION Central neurons that synthesize oxytocin are locatedin the supraoptic(SON) and paraventricular nuclei(PVN) of the hypothalamus. Magnocellular neurons inboth nuclei project to the posterior pituitary gland,

关键词：催产素阿托西班溃疡吲哚美辛组胺半胱胺

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