(n.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain.
Example Sentences:
(1) Altogether, 29% of the drivers had evidence of alcohol, marijuana, cocaine, prescription or nonprescription stimulants, or some combination of these, in either blood or urine.
(2) Mechanisms of drug toxicity, i.e., vascular pathology demonstrated from chronic use of cocaine.
(3) With chronic cocaine use, neurotransmitter and neuroendocrine alterations occur.
(4) In pentobarbital-anesthetized rats or in perfused hind paw of rats, the potentiation induced by cocaine and tripelennamine was more marked to norepinephrine than to epinephrine, but an inverse relation between norepinephrine and epinephrine was observed in the potentiation by I and II.
(5) The disposition of radiolabeled cocaine in humans has been studied after three routes of administration: iv injection, nasal insufflation (ni, snorting), and smoke inhalation (si).
(6) When S+ followed cocaine, stereotyped bar-pressing developed with markedly increased responding during the remainder of the session.
(7) The effects were atropine-resistant and qualitatively similar to those seen with cocaine.
(8) Knowing the risks of transporting cocaine from Africa to the US, and given the slim profit margin, “tell me who will be doing that kind of deal?” Chigbo asked.
(9) Cocaine produces simple hallucinations, PCP can produce complex hallucinations analogous to a paranoid psychosis, while LSD produces a combination of hallucinations, pseudohallucinations and illusions.
(10) Inhibition of DNA synthesis by cocaine in developing brain was not secondary to ischemia, nor to local anesthesia, as alpha-adrenergic blockade with phenoxybenzamine afforded no protection, and lidocaine could not substitute for cocaine.
(11) Cocaine, 3 microM, shifted the noradrenaline concentration response curve to the left about 0.4 log units in all renal vessel groups, thus renal vascular smooth muscle sensitivity to noradrenaline was significantly greater in vessels from rats receiving CyA than in vessels from control rats.
(12) Similarities and differences in the sensitization induced by cocaine and amphetamine (which are though to have different mechanisms of actions although common behavioral outcomes) have not been thoroughly studied.
(13) However, they do indicate that cocaine is only a weak aversion-inducing agent.
(14) Driving-under-the-influence (DUI) offenders with either alcohol- or cocaine-related problems were studied.
(15) The cardiac risk of cocaine body packing was studied by means of continuous ECG monitoring in 13 cocaine body-packers during spontaneous elimination.
(16) We present a 16-year-old with chest pain temporally related to cocaine use and discuss the relationship between cocaine use and acute myocardial infarction that has been seen in the adult population.
(17) Both acute and chronic cocaine treatments significantly increased plasma concentrations of corticosterone and reduced the ratios of 3,4-dihydroxyphenylacetic acid to dopamine and 5-hydroxyindoleacetic acid to serotonin in several brain regions.
(18) Daily cocaine injection into rodents produces a progressive increase in the motor stimulant effect of acute cocaine administration.
(19) The nine cocaine users, when compared with 14 insulin-dependent diabetics on dialysis matched by protocol, were found to be similar in terms of diabetic retinopathy and metabolic neuropathy.
(20) In view of recent reports demonstrating that illicit cocaine use may cause rhabdomyolysis, we reviewed the collective experience of a university-affiliated medical center to identify patients with cocaine-induced rhabdomyolysis.