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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Desert cottontail as seen from behind such that the white tail is easily visible Desert cottontail as seen from behind such that the white tail is easily visible
During drought years on the Galapagos, small, easily eaten seeds become rare, le During drought years on the Galapagos, small, easily eaten seeds become rare, le
Phonological and Whole-Word Reading Phonological and Whole-Word Reading
Prestige can sometimes be converted into property. Shown here is “Snooki” Polizzi, a reality ... Prestige can sometimes be converted into property. Shown here is “Snooki” Polizzi, a reality ...
A digital storage oscilloscope can be easily connected to an injector by carefully back-probing ... A digital storage oscilloscope can be easily connected to an injector by carefully back-probing ...
Identification of the numbers in the Word Problem Identification of the numbers in the Word Problem
Video: How proteins function? How do proteins work?

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