Reperfusion
The restoration of blood flow to an organ or to tissue. After a heart attack, an immediate goal is to quickly open blocked arteries and reperfuse the heart muscles. Early reperfusion minimizes the extent of heart muscle damage and preserves the pumping function of the heart.
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- Repetitive DNA
DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed highly repetitive DNA consists of short sequences, 5-100 nucleotides, repeated thousands of times in a single stretch and includes satellite DNA. Another class termed moderately repetitive DNA consists of longer sequences, about 150-300 nucleotides, dispersed evenly throughout […]
- Repetitive stress injury
An injury that occurs due to recurrent overuse or improper use. One of the best-known repetitive stress injuries is carpal tunnel syndrome, which often results from the trauma of highly repetitive work such as that of supermarket checkers, assembly-line workers, typists, word processors, accountants, and writers.
- Replacement therapy, estrogen (ERT)
a form of therapy with estrogen hormones most commonly used to treat the symptoms of menopause. It reduces or stops the short-term changes of menopause such as hot flashes, disturbed sleep, and vaginal dryness. Estrogen replacement therapy is thought to help prevent osteoporosis, a consequence of lowered estrogen levels. Estrogen therapy has more recently been […]
- Replacement therapy, hormone (HRT, HT)
The combination therapy of estrogen plus a progestogen. Formerly, hormone replacement therapy (HRT). Estrogen therapy (ET) is used to treat the symptoms of menopause. It reduces or stops the short-term changes of menopause such as hot flashes, disturbed sleep, and vaginal dryness. Estrogen therapy can prevent osteoporosis, a consequence of lowered estrogen levels. Vaginal estrogen […]
- Replacement therapy, testosterone
The practice of giving testosterone to men when the testes do not produce enough testosterone. This may be due to absence, injury, or disease. Over supplementation has serious side effects. Testosterone is available in oral, IV, patch forms, and implantable pellets. There is no known indication for testosterone in women, although it has been proposed […]