The most common form of mastocytosis consisting of small aggregations of mast cells within characteristic salmon-brown patches of skin which itch when stroked and mat develop a localized hive. The condition occurs occurring primarily in children and clears spontaneously with adolescence.
- U.S. National Library of Medicine (NLM)
The world’s largest medical library, the U.S. National Library of Medicine (NLM) is part of the National Institutes of Health (NIH). The NLM has as its mission to collect, organize, and make available biomedical science information to investigators, educators, and practitioners and carry out programs designed to strengthen medical library services in the United States. […]
- U (uracil)
A nucleotide base and one member of the A-U (adenine-uracil) base pair in RNA. The other base pair in RNA is G-C (guanine-cytosine). Uracil takes the place in RNA that thymine (T) occupies in DNA.
- Usher syndrome
The most common disease that diminishes both hearing and vision, a group of genetic disorders in which retinitis pigmentosa (an eye disease that causes vision to deteriorate over time) is combined with congenital deafness. The hearing loss in a patient with Usher syndrome occurs in both ears as a result of nerve deafness. Some patients […]
United States Pharmacopeia.
- USPHS (United States Public Health Service)
There currently are more than 6,100 officers on active duty. Officers are assigned to all of the PHS Agencies and to a number of agencies outside of PHS, including the Bureau of Prisons, U. S. Coast Guard, Environmental Protection Agency, Health Care Financing Administration, and the Commission on Mental Health of the District of Columbia.