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Tag: "usually" at biology news

Liquid ventilation

... before the baby gets stronger. The respirators usually employd in these cases provide artificial surfacta...atory rhythm. The amount of liquid administered is usually in the order of 10 millilitres per kilogram of the baby's weight. Perfluorocarbons instead of air ...

Human prostate grown from embryonic stem cells

...by the time they reach 80 years of age. BPH is not usually life-threatening, but has a dramatic impact on quality of life. Prue Cowin said the discovery will allow scientists to observe first-hand the factors that play a role in the development of prostate disease. "The tissue we've grown behaves as a norm...

Canine cancer vaccine program shows early promise

... cancer in humans, is very aggressive in dogs. It usually manifests itself in or around the mouth or toes. Despite conventional treatment, 75 percent of dogs with oral melanoma will die within one year. But about 40 percent of dogs with a melanoma tumor present responded to a vaccine created from actual m...

Learning to love bacteria: Stanford scientist highlights bugs' benefits

...ms to the body. "Organisms that cause disease are usually considered in the context of harm and epidemics and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take...

Scientists look to the Bahamas as a model for coral reef conservation

...ms to the body. "Organisms that cause disease are usually considered in the context of harm and epidemics and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take...

New Rotavirus vaccine joins routine infant immunization schedule

... every child experiences infection with rotavirus, usually as gastroenteritis. In the United States, children under age five experience an estimated 2.7 million episodes of rotavirus gastroenteritis each year, resulting in 250,000 emergency room visits and an estimated 70,000 hospitalizations. In developing ...

MIT chemist discovers secret behind nature's medicines

...r amino acid change in the active site. Things are usually not this simple, but there's an elegant beauty in this simplicity," and it may be what gives other enzymes the prowess required for making other medicinally valuable halogenated natural products, too. ...

Three new species of lemurs identified

...al differences or chromosome profiles ?the methods usually used to define species. These findings have important implications, as a better knowledge of lemur species characteristics will provide the basis for better conservation programmes for these endangered animals. An international team comprising resea...

Researchers reverse juvenile diabetes in animal model

... that produce insulin. Symptoms of type 1 diabetes usually develop over a short period of time and include increased thirst, frequent urination, constant hunger, weight loss, blurred vision and extreme fatigue. People with type 1 diabetes require numerous daily injections of insulin to survive. About Dr. ...

'Bad' enzymes may wear white hats after stroke

...earch. The fellowships support a year of research, usually between the second and third years of medical school. The program is designed to encourage medical students to become physician-scientists. Just after a stroke--a temporary loss of blood to the brain caused by a clot or burst blood vessel--MMPs chew...

Skin disease common among Hispanic farmworkers in North Carolina, research shows

...y is used to differentiate one's self from others, usually to show superiority." Arcury said these beliefs need to be challenged in any programs designed to reduce occupational skin disease. "First, the notion that it affects only those who are susceptible needs to be dispelled," he said. "Second, the dela...

There's something fishy about human brain evolution

...nce. "Anthropologists and evolutionary biologists usually point to things like the rise of language and tool making to explain the massive expansion of early hominid brains. But this is a Catch-22. Something had to start the process of brain expansion and I think it was early humans eating clams, frogs, bir...

Junk DNA may not be so junky after all

... progression has been difficult to confirm because usually enhancers are located in the 98 percent of the human genome that does not code for protein, termed non-coding DNA. Unlike DNA sequences that code for protein, non-coding DNA, sometimes referred to as "junk" DNA, follows few rules for organization and...

Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice

... progression has been difficult to confirm because usually enhancers are located in the 98 percent of the human genome that does not code for protein, termed non-coding DNA. Unlike DNA sequences that code for protein, non-coding DNA, sometimes referred to as "junk" DNA, follows few rules for organization and...

Cell therapy slows progression of an inherited neurological disease; Improves motor skills in mice

... relatively rare inherited disorder that in humans usually begins early in life. In the disease, the fatty substance sulfatide accumulates in the brain due to the lack of an enzyme and causes loss of the white matter or myelin protecting nerve fibers. Without myelin, nerves cannot conduct impulses to and fro...

New research demonstrates bone-marrow derived stem cells can reverse genetic kidney disease

...econd most common genetic cause of kidney failure, usually appear in children, affecting the kidneys' filtration system and typically leading to end-stage renal disease in the patient's teens, 20s or 30s. The disease additionally causes deafness in some patients. "This is one of 31 human diseases that occur...

Study finds drug may cut down involuntary movements

...line. Unlike Alzheimer's disease, where patients usually lose their memory and insight into their disease a...hem throughout most of their illness. The disease usually strikes people in their 30s and 40s, though some patients are affected as early as childhood, while ...

Malaria parasites develop in lymph nodes

...scaped degradation and began to develop into forms usually found only in the liver. Up to now, researchers believed that, although both blood and lymphatic vessels take up Plasmodium parasites, they all end up in the liver, Ménard said. "Nobody had proposed that they actually might stop" in the lymph nodes a...

U of MN researchers identify ataxia gene

... sometime during their lifetime. The onset of SCA5 usually occurs between the ages of 30 and 50, but can appear earlier or later in life, with reported ages of onset ranging from 4 to more than 70 years of age. Now that researchers have identified the specific mutation that causes SCA5, testing of patient...

Too much sugar not good for coral reefs

... with corals to grow out of control. People don't usually even measure carbon when they do water quality studies. They only look at the nutrients found in fertilizers. Nitrogen and phosphates cause algal overgrowth on corals, which also contributes sugars to the system. It is vital to consider the carbon...

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