ricin


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ricin

 [ri´sin]
a phytotoxin in the seeds of the castor oil plant (Ricinus communis), inhalation or ingestion of which causes intoxication, producing superficial inflammation of the respiratory mucosa with hemorrhages into the lungs, or edema of the gastrointestinal tract with hemorrhages.

ri·cin

(rī'sin, ris'in),
A highly toxic lectin and hemagglutin that occurs in castor beans (the seeds of the castor oil plant, Ricinus communis; if ingested, acts as a violent irritant with possibly fatal results, on the respiratory and gastrointestinal mucosa; an N-glycosidase that acts on the GOS subunit of rRNA, halting protein translation.

ricin

Toxicology A toxic vegetable poison from the castor bean plant–Ricinus communis which causes agglutination and fulminant hemolysis at very high dilutions–1/106 Clinical Abdominal pain, nausea, cramps, convulsions, dehydration, hemolysis, cyanosis, renal failure–oliguria, hematuria, circulatory collapse. See Magic bullet.

ri·cin

(rī'sin)
Toxin derived from castor beans that causes inflammation of the gastrointestinal mucosa and the respiratory tract.
[L. ricinus, castor oil plant]

ricin

A highly poisonous substance found in the castor oil bean Ricinis communis .

ri·cin

(rī'sin)
A highly toxic lectin and hemagglutinin that occurs in castor beans (the seeds of the castor oil plant, Ricinus communis); if ingested, acts as a violent irritant with possibly fatal results, on the respiratory and gastrointestinal mucosa.
[L. ricinus, castor oil plant]
References in periodicals archive ?
Some of the initial symptoms of Ricin poisoning include respiratory problems, fever, cough, nausea, and tightness in the chest, heavy sweating and fluid in lungs.
In the case of a ricin toxin vaccine, clinical efficacy testing of the vaccine is unethical since exposing unvaccinated humans (i.e., placebo-control group) to ricin toxin would be fatal.
counterterrorism officials were "increasingly concerned" that al-Qa'ida in the Arabian Peninsula (AQAP) was "trying to produce the lethal poison ricin, to be packed around small explosives for attacks against the United States." (10)
Mohammed Ammer Ali, above; and, right, the toy car containing what he believed was ricin
At one point Ali asked: "How do I test this ricin?" and received the instruction: "You must test it on a rodent."
In the US crime drama, lead character Walter White, left, plots to kill rivals using ricin.
UNDER ultra-violet light, Mohammed Ali's guilt of trying to posses the chemical weapon ricin is all too apparent.
NEW YORK -- A man's computer bears evidence that he tried to acquire the deadly poison ricin, a prosecutor told a judge Friday.
The NIH revealed last month that it had found a sealed container of the toxin ricin as well as intact containers of five other dangerous pathogens in several of the laboratory facilities on its Washington, DC, campus.
Scientists in the US found ricin dating back almost a century and bacteria which can cause plague in a search of government labs.
A MAN who sparked a security alert by claiming to have consumed deadly ricin in a court had in fact taken castor seeds.