CHEM 183 Study Guide - Midterm Guide: Lactose Intolerance, Food Intolerance, Antibody

• School: McGill University
• Department: Chemistry
• Course: CHEM 183
• Professor: Joe Schwarcz

Document Summary

Allergies: definitions, allergies any adverse reaction to substances that are normally harmless. Ige antibodies involved: range from annoying symptoms to fatal reactions, mechanism a) >next encounter, body can neutralize: technically a mistake, not dangerous, body"s way of getting rid of o ending material a) food >vomit. 10-20% of population, richer countries have higher prevalence: 4% of adults have food allergies (1) De nitions: hormones: stirs something into action , chemical messenger in the blood, secreted by endocrine organs, tightly regulated. Experiments: john hunter: roosters and testes, 1700s: castrate roosters combs shrank / collapsed, put testes back into body cavity combs became erect again, arnold berthold: fully severed testes and put back into rooster, 1849: reproduced hunter"s expt. He self-injected with macerated dog testes: felt young and invigorated after that, then repeated with monkey gland extracts . Introduced hormone therapy : serge vorono : took testicles from scrotum of executed criminals and implanted them into humans.