| angiostenosis | Narrowing of one or more blood vessels. Origin: angio-+ G. Stenosis, a narrowing (05 Mar 2000) |
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| angiostomous | <zoology> With a narrow mouth, as the shell of certain gastropods. Origin: Angio- + Gr. Mouth. Source: Websters Dictionary (01 Mar 1998) |
| angiostrongylosis | Infection of animals and man with nematodes of the genus Angiostrongylus. Synonym: eosinophilic meningitis. (05 Mar 2000) |
| angiostrongylus | A genus of parasitic nematodes of the superfamily metastrongyloidea. Two species, angiostrongylus cantonensis and a. Vasorum, infest the lungs of rats and dogs, respectively. A. Cantonensis is transmissible to man where it causes frequently fatal infection of the central nervous system. (12 Dec 1998) |
| angiostrongylus cantonensis | A species of parasitic nematodes distributed throughout the pacific islands that infests the lungs of domestic rats. Human infection, caused by consumption of raw slugs and land snails, results in eosinophilic meningitis. (12 Dec 1998) |
| Angiostrongylus costaricensis | A nematode parasite of rats and other rodents in Central America, recently found to infect humans, where they localise in the mesenteric arteries; infective third-stage larvae have been found in the slug, Vaginulus plebeius. Synonym: Morerastrongylus costaricensis. (05 Mar 2000) |
| Angiostrongylus malaysiensis | Species of Angiostrongylus found in Malaysia, a common rodent parasite similar to Angiostrongylus cantonensis and an actual or potential agent of eosinophilic meningitis in that region. (05 Mar 2000) |
| Angiostrongylus vasorum | A species occurring in the pulmonary artery and, rarely, in the right ventricle of the dog and fox; thrombi may occur in the lungs, and hypertrophy of the heart and liver may result in ascites; affected animals suffer from dyspnea and occasionally may die from cardiac insufficiency. Synonym: Haemostrongylus vasorum. (05 Mar 2000) |
| angiotelectasis | Angiotelectasia Rarely used term for dilation of the terminal arterioles, venules, or capillaries. Origin: angio-+ G. Telos, end, + ektasis, a stretching out (05 Mar 2000) |
| angiotensin | <hormone> A family of oligopeptides ranging in size from angiotensin precursors with 14 amino acids to the active vasoconstrictor angiotensin II with 8 amino acids, or their analogs or derivatives. The amino acid content varies with the species and changes in that content produce antagonistic or inactive compounds. Angiotensinogen (renin substrate) is a 60 kD polypeptide released from the liver and cleaved in the circulation by renin to form the biologically inactive decapeptide angiotensin I. This is in turn cleaved to form active angiotensin II by Angiotensin-converting Enzyme (ACE). Angiotensin II causes contraction of vascular smooth muscle and thus raises blood pressure and stimulates aldosterone release from the adrenal glands. Angiotensin is finally broken down by angiotensinases. (12 Aug 2000) |
| angiotensin amide | <chemical> 1-l-asparagine-5-l-valine-angiotensin II. The octapeptide amide of bovine angiotensin II used to increase blood pressure by vasoconstriction. Pharmacological action: vasoconstrictor agents. Chemical name: Angiotensin II, 1-L-asparagine-5-L-valine- (12 Dec 1998) |
| angiotensin I | <chemical> The decapeptide precursor of angiotensin II, generated by the action of renin on angiotensinogen. It has limited pharmacologic activity. Chemical name: Angiotensin I (12 Dec 1998) |
| angiotensin I (Phe 8-His 9) hydrolase | <enzyme> Cleaves the cooh-terminal dipeptide his(9)-leu(10) from the decapeptide angiotensin i Registry number: EC 3.4.15.- Synonym: atypical angiotensin-converting enzyme (26 Jun 1999) |
| angiotensin II | <chemical> The active form of angiotensin. An octapeptide found in blood, it is synthesised from angiotensin I and quickly destroyed. Angiotensin II causes profound vasoconstriction with resulting increase in blood pressure. The clinically and experimentally used bovine form has valine in position 5 where the human form has isoleucine. Pharmacological action: vasoconstrictor agents. Chemical name: Angiotensin II (12 Dec 1998) |
| angiotensin III | <chemical> A heptapeptide formed by the enzymatic hydrolysis of angiotensin II. It has greater activity than angiotensin II for stimulating aldosterone synthesis and in the release of prostaglandins but only 20% of the pressor activity. Chemical name: Angiotensin II, 1-de-L-aspartic acid- (12 Dec 1998) |
| angioneuralgia |
(an
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| angioneuropathic |
(an
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| angioneuropathy |
(an
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| angioscope |
(an
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| angiospastic anesthesia |
loss of sensibility dependent on spasm of the blood vessels.
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