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Multiple chemical sensitivity (MCS) is an underrecognized diagnosis characterized by chronic symptoms attributed to exposure to low levels of commonly used chemicals. [1] [2] Symptoms are typically vague and non-specific. They may include fatigue, headaches, nausea, respiratory problems, seizures, confusion, lethargy, pain, and dizziness.
A food intolerance differs from a food allergy or chemical sensitivity because it generally requires a normal serving size to produce symptoms similar to an IgE immunologic response. While food intolerances may be mistaken for a food allergy, they are thought to originate in the gastrointestinal system.
There is a wide variety of symptoms, with no pattern associating particular exposures with particular symptoms. [1] Symptoms do not appear consistently after exposure in blinded experiments. [1] However, the expectancy-induced nocebo effect seems to produce symptoms when they believe they have been exposed, even if they have not been exposed to ...
The antigens may be for example glycoproteins on the cell membrane of erythrocytes that are key molecules that determine blood types. Depending on the chemical nature of the antigens, blood types have different levels of hypersensitivity; for instance, A and B are more antigenic than other antigens. [10] Type II hypersensitivity
Detoxification and body cleansing products and diets have been criticized for their unsound scientific basis, in particular their premise of nonexistent "toxins" and their appropriation of the legitimate medical concept of detoxification. According to the Mayo Clinic, the "toxins" typically remain unspecified and there is little to no evidence ...
Chemical sensitivity may refer to: Multiple chemical sensitivity, a chronic increase in sensitivity to common chemicals; Food intolerance, a negative reaction to chemical components in the diet; Drug intolerance or drug sensitivity, a lower threshold to the normal pharmacologic action of a drug, not to be confused with drug allergy
Clinical ecology was the name given by proponents in the 1960s to a claim that exposure to low levels of certain chemical agents harm susceptible people, causing multiple chemical sensitivity and other disorders. Clinical ecologists are people that support and promote this offshoot of conventional medicine. [1]
The patients suffered from local and systemic symptoms attributed to their dental restorations. The effect of dental metal removal was studied in 111 patients with metal hypersensitivity and symptoms resembling chronic fatigue syndrome . After consultation with a dentist, a subgroup of 111 patients who showed allergy to their dental metals ...