(n.) Originally, a medicine of a thicker consistence than sirup, prepared with opium.
(n.) Any medicine that contains opium, and has the quality of inducing sleep or repose; a narcotic.
(n.) Anything which induces rest or inaction; that which quiets uneasiness.
(a.) Inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of Hermes.
(v. t.) To subject to the influence of an opiate; to put to sleep.
Example Sentences:
(1) The second experiments entailed use of the nonspecific opiate antagonist, naloxone, as well as the specific delta antagonist, ICI 154,129, against seizures induced by icv-administered morphine, morphiceptin, DADL, or DSLET.
(2) Opiate agonists and endogenous opioid peptides inhibit electrolyte secretion both in vitro and in vivo.
(3) It appears that tricyclic antidepressants act in a fashion different from opiate drugs that alter the sensory discriminative component of pain.
(4) The results are discussed with reference to the possible mechanism(s) via which injected and endogenous opiates may affect motor performance by attenuating GABA transmission in the nigra.
(5) Pharmacological data suggest that opiates, acting indirectly via the catecholaminergic system, are involved in the inhibition of LH release and the stimulation of PRL secretion.
(6) Such disturbances may be induced by opiates, benzodiazepines, phenothiazines, butyrophenones, ketamine, etomidate, propofol, nitrous oxide, and halogenated inhalation anesthetics as well as by H2-blocking agents such as cimetidine.
(7) From these results, we conclude that opiate peptides are released in response to the suckling stimulus in the cynomolgus monkey and that they mediate the effects of suckling on PRL secretion in both gonadal-intact and agonadal cynomolgus monkeys.
(8) Its potency is 4-5 times greater than that of the opiate antagonist naloxone.
(9) A cost-effective immunoassay for the detection of opiates in urine has been developed using commercial reagents on a centrifugal analyser.
(10) Drugs used to promote food intake and weight gain, such as cyproheptadine, amitriptyline, clonidine and opiate antagonists, have provided disappointing results.
(11) An alternative approach, which correlates the structure-activity data of opiate compounds with that of the enkephalins, is described and shown to produce a model consistent with the available structure-activity data.
(12) However, opiate treatment is not a new therapeutic concept in psychiatry.
(13) The inhibitory response was not decreased by treatment with atropine, hexamethonium, yohimbine or naloxone, suggesting that muscarinic, nicotinic, alpha 2 adrenergic or opiate receptors were not being stimulated.
(14) The hypothesis that opiate agonism requires an N substituent in the axial position does not appear to be consistent with the increased potency of beta isomers in which axial N substituents are thermodynamically more unstable.
(15) We report that exposure of rat spinal cord-dorsal root ganglion cocultured neurons to kappa-opiate agonist is accompanied by a 60-70% reduction in the level of the alpha i subunit of GTP-binding proteins.
(16) Cerebrospinal fluid (CSF) opiate activity has been found to be elevated in two studies.
(17) PBEir increased with both opiates immediately after initiation of CPB and remained so during the rest of the study.
(18) Diclofenac is an alternative to opiates in the management of postoperative pain.
(19) On the other hand, if the tissue-derived opiates were from prodynorphin, only Leu-enkephalin should be found.
(20) Analysis of patient questionnaires suggests more enthusiasm for patient-controlled analgesia, but in this study, it was difficult to clearly demonstrate any significant advantage for pain management or amount of opiate administered.
Thebaine
Definition:
(n.) A poisonous alkaloid, C19H21NO3, found in opium in small quantities, having a sharp, astringent taste, and a tetanic action resembling that of strychnine.
Example Sentences:
(1) These results provide evidence for the enzymatic in vitro conversion by mammalian tissues of thebaine to morphine.
(2) Each step was evalutated for the yield of thebaine by use of 1-3H-thebaine and GLC.
(3) The method of drying and milling of tissue and the size of resultant particles were important factors in the quantitative recovery of thebaine.
(4) The minimum amount of thebaine that could readily be determined by the g.l.c.
(5) Potency was etorphine greater than morphine = codeine greater than thebaine.
(6) A method for the quantitative estimation of thebaine from P. bracteatum is presented.
(7) Shoot thebaine concentrations differed significantly for 18- and 37-week-old plants.
(8) The procedure gives base-line separation of thebaine without the need for gradient elution equipment, and can be completed within 12 min.
(10) some poppy plants were obtained that developed capsules richer in thebaine than the controls.
(11) Large doses of naltrexone precipitated a mild abstinence syndrome in dogs receiving thebaine chronically; however, no withdrawal abstinence syndrome was observed after abrupt withdrawal.
(12) Opial contains 50% morphine HCl and other opioids such as codeine, thebaine, papaverine, and noscapine etc.
(13) Attempts to use a codeinone intermediate gave poor yields; however, methylation of the potassium salt of codeine to give codeine methyl ether followed by oxidation with gamma-MnO2 gave thebaine in 67% yield from codeine.
(14) Oxymercuration of thebaine with mercuric acetate in refluxing methanol, followed by hydrolysis of the intermediate 7-acetomercurineopinone dimethyl ketal with 3 N acetic acid, or, alternatively, reduction of the organomercury compound with sodium borohydride and mild acid hydrolysis of the resulting neopinone dimethyl ketal, gives neopinone in 95-100% yields.
(15) A practical synthesis of thebaine and oripavine has been developed from codeine and morphine, respectively.
(16) Others opioids (dihydrocodeine, hydrocodone, oxycodone, and thebaine) are structurally similar to codeine and their metabolism (O-demethylation at the 3 position) might also be under genetic control.
(17) The method was applied successfully to the direct determination of thebaine in the Arya II population capsules of Papaver bracteatum Lindl.
(18) Thebaine isolated by this technique was shown to be pure, regardless of the age of plant or plant part from which it was obtained.
(19) One of the poppies, X7, (ca 5% thebaine) developed capsules consisting partly of polyploid tissue during the first and second year.
(20) The most potent drug in inhibiting the uptake of 5-HT (10 muM) by human platelets was methadone, followed by pentazocine>piminodine approximately pethidine approximately anileridine approximately cyclazocine approximately thebaine > dextropropoxyphene.