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(1 to 10 of 65 matches)
Walker, baby
A device that allows a baby to move about in a half-seated, half-upright position.
A "walker" may paradoxically delay a baby in development. The baby using a walker tends to be slow in reaching motor milestones such as sitting up, crawling, and walking and other milestones such as those involving memory, learning, and language skills.
The American Academy of Pediatrics advocates a "ban on the manufacture and sale of mobile infant walkers in the US." The AAP also stresses that parents should be made aware of the "lack of benefits" of baby walkers.
Source: Journal of Developmental and Behavioral Pediatrics 1999;20:355-361.
Warburg apparatus
A device used in biochemistry for measuring breathing (respiration) by tissues. Tissue slices are enclosed in a chamber in which the temperature and pressure are monitored, and the amount of gas produced or consumed by the tissue is measured.
The Warburg apparatus was invented by the German biochemist Otto Heinrich Warburg (1883-1970), a pioneer in research on the respiration of cells and the metabolism of tumors. Warburg won the Nobel Prize in physiology or medicine in 1931.
Warburg's yellow enzyme
A key respiratory enzyme discovered by the German biochemist Otto Heinrich Warburg (1883-1970), a pioneer in research on the respiration of cells and the metabolism of tumors. Warburg's yellow enzyme is a flavoprotein that catalyzes an oxidation-reduction reaction. This reaction is necessary for the cells to normally breathe (respire).
Warburg won the Nobel Prize in physiology or medicine in 1931 "for his discovery of the nature and mode of action of the respiratory enzyme."
Warfarin
An anticoagulant drug (brand names: Coumarin, Panwarfin, Sofarin) taken to prevent and treat blood clots or overly thicken blood. Some patients also take warfarin to reduce their risk of clots, stroke, or heart attack.
Warfarin works by suppressing the production of some clotting factors (interfering with prothrombin activation) and therefore inhibiting the clotting of blood.
Warfarin interacts with many other drugs, including some vitamins. These interactions can be dangerous, even life-threatening. Talk to your doctor before taking any other prescription or over- the-counter medications.
Warfarin is also used as a rat poison.
Warfarin, teratogenicity of
The anticoagulant warfarin (COUMADIN) is a known teratogen, an agent that can disturb the development of the embryo and fetus and lead to birth defects..
Warfarin taken by a woman during pregnancy can cause bleeding into the baby's brain (cerebral hemorrhage), underdevelopment (hypoplasia) of the baby's nose and stippling of the ends (the epiphyses) of the baby's long bones.
Wart
A local growth of the outer layer of the skin (the epidermis) caused by a virus. The virus of warts (a papillomavirus) is transmitted by contact. The contact can be with a wart on someone else or one on oneself (autoinnoculation).
Warts that occur on the hands or feet are called common warts. A wart on the sole of the foot is a plantar wart. Genital (venereal) warts are located on the genitals and are transmitted by sexual contact.
The word "wart" is from Old English and far back as the 8th century referred to a wart. The medical name for a wart is "verruca", the Latin for wart. A common wart is a "verruca vulgaris". A wart in medicine is also sometimes called by its Spanish name, "verruga".
Wart, genital
A wart that is confined primarily to the moist skin of the genitals. These warts are due to viruses belonging to the family of human papillomaviruses (HPVs) which are transmitted through sexual contact. The virus can also be transmitted from mother to baby during childbirth.
Most people infected with HPV have no symptoms but these viruses increase a woman’s risk for cancer of the cervix. HPV infection is the most common sexually transmitted disease in the United States. It is also the leading cause of abnormal PAP smears and pre-cancerous changes of the cervix in women.
There is no cure for genital warts virus infection. Once contracted, the virus can stay with a person for life.
Wart, venereal
The same as a genital wart, a wart that is confined primarily to the moist skin of the genitals. These warts are due to viruses belonging to the family of human papillomaviruses (HPVs) which are transmitted through sexual contact. The virus can also be transmitted from mother to baby during childbirth.
Most people infected with HPV have no symptoms but these viruses increase a woman’s risk for cancer of the cervix. HPV infection is the most common sexually transmitted disease in the United States. It is also the leading cause of abnormal PAP smears and pre-cancerous changes of the cervix in women.
There is no cure for venereal (genital) warts virus infection. Once contracted, the virus can stay with a person for life.
Warts, plantar
Warts that grow on the soles of the feet.
Plantar warts are different from most other warts. They tend to be flat and cause the buildup of callus (that has to be peeled away before the plantar wart itself can be seen. Plantar warts may attack blood vessels deep in the skin. They can be quite painful. Plantar warts are caused by human papillomavirus (HPV) type 1 and tend to affect teenagers.
By contrast, common warts on the skin of the fingers and hands appear as little mounds of overgrown skin with a rough dry surface. They do not as a rule grow down much and they do not tend to hurt. They are usually caused by HPV types 2 and 4 and by preference affect young children before their teens.
To avoid plantar warts, a child should be taught never to wear someone else's shoes. If a child gets plantar warts, they should be treated by a doctor. Plantar warts can be far more of a problem than common warts.
Wasp stings
Stings from wasps and other large stinging insects such as bees, hornets and yellow jackets can trigger allergic reactions varying greatly in severity. Avoidance and prompt treatment are essential. In selected cases, allergy injection therapy is highly effective. (The three "A’s" of insect allergy are Adrenaline, Avoidance and Allergist.)
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