Gain-of-function mutation
Gain-of-function mutation: A mutation that confers new or enhanced activity on a protein. Loss-of-function mutations, which are more common, result in reduced or abolished protein function.
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Gait: A manner of walking. Observation of gait can provide early diagnostic clues for a number of disorders, including cerebral palsy, Parkinson’s disease, and Rett syndrome.
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Galactorrhea: The spontaneous flow of milk from the nipple at any time other than during nursing. Galactorrhea can be due to “normal” factors such as an unrecognized pregnancy, trauma, surgery, overexercise or one of a number of drugs (including amphetamine, cimetidine, female hormone replacement therapy, hydroxyzine, methyldopa, nicotine, narcotics, reserpine, antidepressants of the so-called tricyclic […]
- Galactose
Galactose: A sugar found in milk. Galactose is a disaccharide that is made up of two sugars, galactose and glucose, that are bound together.
- Galactosemia
Galactosemia: An inherited disorder of galactose metabolism that occurs in newborns and can result in damage to the liver, brain, kidneys, and other organs in infants due to the accumulation of galactose derivatives in the body. Individuals with galactosemia cannot tolerate any amount of human or animal milk intake. The symptoms of galactosemia resolve if […]
- Galen
Galen: Greek physician and philosopher (born about 129 AD, died about 210 AD) known among other things for his discovery of blood in human arteries and for his dissection of the human cranial nerves, the nerves that supply key areas of the head, face, and upper chest. The son of Nicon, a well-to-do architect and […]