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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.04%3A_Immune_System/15.4.01%3A_15.4T_AllergiesThis page explains the harmful immune responses associated with allergies and autoimmune diseases. Allergies arise from mechanisms like immediate hypersensitivity and can cause reactions such as hay f...This page explains the harmful immune responses associated with allergies and autoimmune diseases. Allergies arise from mechanisms like immediate hypersensitivity and can cause reactions such as hay fever and anaphylaxis, with treatments including desensitization. Autoimmune disorders involve the body attacking itself, exemplified by conditions like Goodpasture's Syndrome and rheumatoid arthritis.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/17%3A_Ecology/17.02%3A_Cycles_of_Matter_in_the_Biosphere/17.2G%3A_Air_PollutionThis page discusses how human activities emit air pollutants like PM2.5, which are linked to health problems such as asthma and lung cancer. The EPA suggests maintaining PM2.5 levels under 15 µg/m3 fo...This page discusses how human activities emit air pollutants like PM2.5, which are linked to health problems such as asthma and lung cancer. The EPA suggests maintaining PM2.5 levels under 15 µg/m3 for better health outcomes. It also highlights other pollutants, including sulfur dioxide and carbon monoxide, that contribute to photochemical smog, causing eye irritation. Catalytic converters in vehicles help reduce these emissions, thereby improving air quality.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.04%3A_Immune_System/15.4U%3A_AsthmaAsthma incidence in the U.S. has doubled in 20 years, affecting over 14 million individuals, often triggered by allergens. Genetic predisposition and elevated IgE antibody levels are common factors. T...Asthma incidence in the U.S. has doubled in 20 years, affecting over 14 million individuals, often triggered by allergens. Genetic predisposition and elevated IgE antibody levels are common factors. Treatments include beta-adrenergic agonists, corticosteroids, and leukotriene inhibitors, while research continues on potential therapies like anti-IgE antibodies and Th1 cell stimulants.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Microbiology_(Liu_et_al.)/24%3A_Hypersensitivites/24.01%3A_Type_I_HypersensitivitiesThis page discusses hypersensitivity reactions, specifically Type I, characterized by IgE antibodies causing rapid allergic responses to allergens. It also introduces the hygiene hypothesis, linking r...This page discusses hypersensitivity reactions, specifically Type I, characterized by IgE antibodies causing rapid allergic responses to allergens. It also introduces the hygiene hypothesis, linking reduced microbial exposure in clean environments to increased allergies and immune disorders in children. Proposed by David Strachan, it highlights a correlation between larger family sizes and fewer allergies, contrasting modern children’s lower microbial challenges with past generations.
