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OECD Guidelines for the Testing of Chemicals, Section 4: Health Effects Test No. 442A: Skin Sensitization Local Lymph Node Assay: DA by Organisation for Economic Co-operation and Development is a nonfiction available to read on EtoBox.
What is OECD Guidelines for the Testing of Chemicals, Section 4: Health Effects Test No. 442A: Skin Sensitization Local Lymph Node Assay: DA about?
The Local Lymph Node Assay: DA (LLNA: DA) is a non-radioactive modification to the LLNA method for identifying potential skin sensitizing test substances and measuring the proliferation of lymphocytes they induce in the auricular lymph nodes. The method, described in mouse (CBA/J strain), is based on measurement of the adenosine triphosphate (ATP) content by bioluminescence as an indicator of this proliferation. A minimum of four animals is used per dose group, with a minimum of three concentrations of the test substance, plus a concurrent negative control group and, if appropriate, a positive control group. The experimental schedule is during 8 days. The time from animal sacrifice to measurement of ATP should not exceed 30 min. The procedure from excision of lymph nodes to ATP measurement should be kept uniform for each animal and completed within 20 minutes. The luciferin/luciferase method is applied to measure the bioluminescence in Relative Luminescence Units (RLU). This study includes: measurements (weighing, RLU), and clinical daily observations. The results are expressed as the Stimulation Index (SI) obtained by calculation. The SI should be ¡Ý1.8 before further evaluation o
Who reads OECD Guidelines for the Testing of Chemicals, Section 4: Health Effects Test No. 442A: Skin Sensitization Local Lymph Node Assay: DA?
It is typically read by self-directed learners exploring a subject in depth.
Common subject areas: history, science, philosophy, social sciences.
- Author
- Organisation for Economic Co-operation and Development
- Publisher
- OECD Publishing
- Published
- 2010
- Language
- EN
- ISBN
- 9789264090972
- Category
- nonfiction
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