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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Breaking disulfide bonds in proteins Breaking disulfide bonds in proteins
Gas molecules have no bonds to other molecules and move in random motion. Gas molecules have no bonds to other molecules and move in random motion.
Proteins synthesized, modified and transported via the Golgi apparatus Proteins synthesized, modified and transported via the Golgi apparatus
Ionic Bonds: Cations vs. Anions Ionic Bonds: Cations vs. Anions
Important Bonds in Biological Molecules Important Bonds in Biological Molecules
Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins
Video: Introduction to Insulin

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