Ricin
The Gujarat Anti-Terrorist Squad recently busted a suspected terror syndicate by arresting a 'doctor', who was allegedly preparing the highly lethal chemical poison, 'Ricin', and whose handler is associated with the Islamic State Khorasan Province, and two others.
Overview of Ricin:
Overview of Ricin:
- Ricin is a highly potent toxin naturally found in the seeds of the castor oil plant, Ricinus communis.​
- It is a lectin, a carbohydrate-binding protein, that inhibits protein synthesis in cells, leading to cell death.​
- The toxin consists of two chains: the A chain inhibits protein synthesis, while the B chain facilitates cell entry.​
- Ricin can be toxic via ingestion, inhalation, or injection; ingestion requires a higher dose for lethality compared to inhalation.​
- Estimated lethal dose (LD50) by ingestion in humans is about 1 milligram per kilogram body weight; inhalation doses as low as 5-10 micrograms per kilogram can be fatal.
Symptoms of ricin poisoning depend on the route of exposure
- Ingestion causes severe gastrointestinal symptoms including nausea, vomiting, diarrhea (possibly bloody), abdominal pain, and hemorrhage, potentially progressing to organ failure and shock.​
- Inhalation leads to respiratory symptoms such as cough, fever, chest tightness, pulmonary edema, and respiratory failure.​
- Injection can cause local tissue damage, inflammation, and systemic organ failure.​
- Onset of symptoms can range from hours to days depending on exposure route and dose.​
- Ricin’s mechanism involves inactivating ribosomes, blocking protein synthesis, which can kill a cell even at a single molecule level.​
- Ricin has been studied for potential medical uses, including cancer treatment, exploiting its cytotoxic properties, but it remains primarily a toxin of concern.​
- It is classified as a Schedule 1 chemical and a potential biological weapon due to its high toxicity and ease of extraction from castor bean waste.​
This concise breakdown captures the main scientific and toxicological facts about ricin. Let me know if you want details on any specificic aspect.
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