What is meant by OECD test guidelines?
The OECD Guidelines for the testing of chemicals are a collection of the most relevant internationally agreed testing methods used by governments, industry and independent laboratories to assess the safety of chemicals.
What OECD 401?
The conventional acute oral toxicity test (formerly OECD Test Guideline 401) is the most heavily criticised test in terms of animal welfare and this concern was the driving force behind the development of three alternative tests for acute oral toxicity (Test Guideline 420, 423, 425).
What is the significance of LD 50?
LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals. The LD50 is one way to measure the short-term poisoning potential (acute toxicity) of a material. Toxicologists can use many kinds of animals but most often testing is done with rats and mice.
What is OECD guidelines in pharmacology?
OECD Guidelines for the Testing of Chemicals (OECD TG) are a set of internationally accepted specifications for the testing of chemicals decided on by the Organisation for Economic Co-operation and Development (OECD).
What is OECD standard?
The OECD Guidelines for Multinational Enterprises are recommendations addressed by governments to multinational enterprises operating in or from adhering countries. The Guidelines are the only multilaterally agreed and comprehensive code of responsible business conduct that governments have committed to promoting.
Which section of OECD guidelines deals with toxicity studies?
Section 2: Effects on Biotic Systems….Section 4: Health Effects.
| Number | Title |
|---|---|
| 422 | Combined Repeated Dose Toxicity Study with the Reproduction/Developmental Toxicity Screening Test |
| 423 | Acute Oral toxicity – Acute Toxic Class Method |
| 424 | Neurotoxicity Study in Rodents |
| 425 | Acute Oral Toxicity: Up-and-Down Procedure |
How is toxicity measured?
Toxicity can be measured by the effect the substance has on an organism, a tissue or a cell. We know that individuals will respond differently to the same dose of a substance because of a number of factors including their gender, age and body weight. Therefore a population-level measure of toxicity is often used.