Biomaterial Database

The effects of prostaglandin synthetase inhibitor indomethacin on the hypothalamic and neurohypophysial oxytocin content in euhydrated and dehydrated male white rats. 1986

J W Guzek, and E Bojanowska, and B Stempniak

Rats euhydrated or dehydrated up to eight days were given intraperitoneally indomethacin (IM) twice daily in a dose of 0.2 mg/100 g of initial body weight. A single dose of IM injected to euhydrated animals did not affect the neurohypophysial oxytocic activity but decreased that potency in the hypothalamus. When IM was administered repeatedly during four or eight days, the hypothalamic oxytocic activity did not differ from the respective controls; under such conditions the oxytocic activity in the neurohypophysis increased progressively. Under conditions of dehydration the known depletion of hypothalamic and neurohypophysial oxytocin storage was not affected by indomethacin. It is therefore suggested that impulses of osmoreceptor origin are of distinct importance in determining the function of oxytocinergic neurones under conditions of inhibited prostaglandin synthesis.

UI	MeSH Term	Description	Entries
D007031	Hypothalamus	Ventral part of the DIENCEPHALON extending from the region of the OPTIC CHIASM to the caudal border of the MAMMILLARY BODIES and forming the inferior and lateral walls of the THIRD VENTRICLE.	Lamina Terminalis,Preoptico-Hypothalamic Area,Area, Preoptico-Hypothalamic,Areas, Preoptico-Hypothalamic,Preoptico Hypothalamic Area,Preoptico-Hypothalamic Areas
D007213	Indomethacin	A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.	Amuno,Indocid,Indocin,Indomet 140,Indometacin,Indomethacin Hydrochloride,Metindol,Osmosin
D008297	Male		Males
D010121	Oxytocin	A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.	Ocytocin,Pitocin,Syntocinon
D010904	Pituitary Gland, Posterior	Neural tissue of the pituitary gland, also known as the neurohypophysis. It consists of the distal AXONS of neurons that produce VASOPRESSIN and OXYTOCIN in the SUPRAOPTIC NUCLEUS and the PARAVENTRICULAR NUCLEUS. These axons travel down through the MEDIAN EMINENCE, the hypothalamic infundibulum of the PITUITARY STALK, to the posterior lobe of the pituitary gland.	Neurohypophysis,Infundibular Process,Lobus Nervosus,Neural Lobe,Pars Nervosa of Pituitary,Posterior Lobe of Pituitary,Gland, Posterior Pituitary,Infundibular Processes,Lobe, Neural,Lobes, Neural,Nervosus, Lobus,Neural Lobes,Pituitary Pars Nervosa,Pituitary Posterior Lobe,Posterior Pituitary Gland,Posterior Pituitary Glands,Process, Infundibular,Processes, Infundibular
D011919	Rats, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.	August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D003681	Dehydration	The condition that results from excessive loss of water from a living organism.	Water Stress,Stress, Water
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
D014882	Water-Electrolyte Balance	The balance of fluid in the BODY FLUID COMPARTMENTS; total BODY WATER; BLOOD VOLUME; EXTRACELLULAR SPACE; INTRACELLULAR SPACE, maintained by processes in the body that regulate the intake and excretion of WATER and ELECTROLYTES, particularly SODIUM and POTASSIUM.	Fluid Balance,Electrolyte Balance,Balance, Electrolyte,Balance, Fluid,Balance, Water-Electrolyte,Water Electrolyte Balance
D016861	Cyclooxygenase Inhibitors	Compounds or agents that combine with cyclooxygenase (PROSTAGLANDIN-ENDOPEROXIDE SYNTHASES) and thereby prevent its substrate-enzyme combination with arachidonic acid and the formation of eicosanoids, prostaglandins, and thromboxanes.	Cyclo-Oxygenase Inhibitor,Cyclooxygenase Inhibitor,Prostaglandin Endoperoxide Synthase Inhibitor,Prostaglandin Endoperoxide Synthase Inhibitors,Prostaglandin Synthase Inhibitor,Prostaglandin Synthase Inhibitors,Prostaglandin Synthesis Antagonist,Prostaglandin Synthesis Antagonists,Cyclo-Oxygenase Inhibitors,Inhibitors, Cyclo-Oxygenase,Inhibitors, Cyclooxygenase,Inhibitors, Prostaglandin Synthase,Inhibitors, Prostaglandin-Endoperoxide Synthase,Antagonist, Prostaglandin Synthesis,Antagonists, Prostaglandin Synthesis,Cyclo Oxygenase Inhibitor,Cyclo Oxygenase Inhibitors,Inhibitor, Cyclo-Oxygenase,Inhibitor, Cyclooxygenase,Inhibitor, Prostaglandin Synthase,Inhibitors, Cyclo Oxygenase,Inhibitors, Prostaglandin Endoperoxide Synthase,Synthase Inhibitor, Prostaglandin,Synthesis Antagonist, Prostaglandin