Biotransformation of Xenobiotics - Lecture 3 by Dr. Chanda - University of Zambia - Pharmacology and Toxicology-unza

Description

This lecture note provides a comprehensive overview of the biotransformation of xenobiotics, a core concept in pharmacology and toxicology. It details the two-phase metabolic process, where phase one involves hydroxylation primarily by the cytochrome P450 superfamily of enzymes, and phase two involves conjugation reactions such as glucuronidation, sulfation, and glutathione conjugation to increase water solubility for excretion. The material systematically explains the structure, function, and induction of cytochrome P450 isoforms, including their role in drug interactions and polymorphisms affecting individual metabolic responses. Authored by Dr. Chanda from the University of Zambia, this resource is tailored for students pursuing degrees, diplomas, or certificates in medical and pharmaceutical sciences, offering essential revision material for mastering metabolic pathways critical for exam preparation and professional practice in Zambia. The content serves as valuable tertiary past papers support, helping learners understand how the body processes drugs and environmental chemicals. Review this detailed lecture to strengthen your grasp of xenobiotic metabolism and its clinical implications.