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(noor″ō-in-vā′siv) Pert. to infectious agents, such as viruses, that are capable of penetrating the bloodbrain barrier that defends the central nervous system and/or nerve cells from injury or infection. Neuroinvasive viruses include herpes simplex viruses, rabies virus, and West Nile virus.


(noor″ō-kī′nĭn) [neuro- + kinin] ABBR: NK. Any of a group of neuropeptides found in the central nervous system that stimulate nerve receptors and cause smooth muscle contraction, blood pressure reduction, and bronchoconstriction.


(noor″ŏ-lep′tik) [neuro- + Gr. lēptikos, taking, seizing] Antipsychotic.

neuroleptic malignant syndrome

(noor″ŏ-lep′tik) ABBR: NMS. A potentially fatal syndrome marked by hyperthermia, catatonic rigidity, altered mental status, profuse sweating, and, occasionally, rhabdomyolysis, renal failure, seizures, and death. It typically occurs after exposure to drugs that alter levels of dopamine in the brain (such as antipsychotic agents) or after the withdrawal of agents that increase central nervous system dopamine levels (such as levodopa or carbidopa). The death rate may be as high as 30%. Antipyretics, curarebased paralytic drugs, bromocriptine, and dantrolene are used to treat the syndrome. SEE: malignant hyperthermia.

neurological level

(noo-rŏ-loj′ĭ-kăl) In a spinal cord injury, the lowest neurologically intact part of the body, found immediately above those parts innervated by damaged nerves.


(nū-rŏl′ō-jĭst) A specialist in diseases of the nervous system.


(noo-rol′ŏ-jē, nū-rol′ŏ-jē) [neuro- + -logy] The branch of medicine that deals with the nervous system and its diseases. neurologic, neurological (noo-rŏ-loj′ĭk, nū-rŏ-loj′ĭk, noo-rŏ-loj′ĭ-kăl, nū-rŏ-loj′ĭ-kăl), adj.

clinical n. The branch of medicine concerned with the study and treatment of people with diseases of the nervous system.


(nū-rŏl′ĭs-ĭn) [″ + lysis, dissolution] A peptide-cleaving enzyme that destroys nerve cells.


(noor-olŏl′ĭ-sĭs) [neuro- + -lysis] 1. The loosening of scar tissue surrounding a nerve. 2. The disintegration or destruction of nerve tissue. It is often used to treat peripheral nerve diseases, esp. those that cause intolerable pain. The painful nerve may be destroyed with drugs or chemicals, extremely cold probes, radio frequency ablation, or surgery. Painful conditions that can be treated with neurolysis include trigeminal neuralgia and glossopharyngeal neuralgia.

celiac plexus n. Destruction of the splanchnic (celiac) nerves that supply the intra-abdominal organs. It is a procedure used to treat unbearable abdominal pain, as in patients with chronic pancreatitis or pancreatic cancer. neurolytic (nū-rō-lĭt′ĭk), adj.


(noor-ō′mă) [neuro- + -oma] Formerly, any type of tumor composed of nerve cells. Classification is now made with respect to the specific portion of the nerve involved. SEE: ganglioneuroma; ...

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