Tag: "normal" at medical news

Florida Tech scientist wins patent for device to deliver X-ray irradiation

...ely delivered, reducing potential damage to nearby normal tissue during exposure. Moreover, x-rays have higher penetrating power than optical waves, as in laser therapy. Similarly, Mitra's methodology can deliver precise radiation as a medical therapy to shrink tumors. Part of Mitra's resear...

Changing chemistry helps explain estrogen threat to the heart

...lood pressure." They looked further and found that normal aging decreases levels of the cofactors L-arginine...uction, estrogen became a vasoconstrictor. "Under normal conditions, such as a pre-menopausal woman, this enzyme, nitric oxide synthase, makes nitric oxide,"...

Single-donor islet transplantation procedure shows promise for patients with type 1 diabetes

...chieved superior glycemic control (as evidenced by normal results of oral glucose tolerance testing in 4 of 5 recipients with sustained insulin independence) using significantly fewer islets," the authors write. "These findings may have implications for the ongoing transition of islet transplantation from c...

An implanted nerve stimulator helps drop foot sufferers walk faster and better

...le to walk better, faster and further, with a more normal gait. Although the device is a world first and is expected to generate a market of 30,000 units a year, the partners first have to explain the benefits to patients and demonstrate the surgical procedure to clinicians. "We are working with surgical te...

Test could improve detection of prion disease in humans

...e abnormal prion proteins appear to convert other, normal prions to an abnormal shape. Many scientists now believe this conversion process leads to several dementing diseases in humans, including CJD. Similar diseases in animals include bovine spongiform encephalopathy ("mad cow" disease) in cattle and scra...

Women with thyroid problem have lower risk of breast cancer

...ss likely to develop breast cancer than women with normal thyroid function. The study, published in the March 15, 2005 issue of CANCER ( http://www.interscience.wiley.com/cancer-newsroom ), a peer-reviewed journal of the American Cancer Society, finds that a history of hypothyroidism is associated with more...

COX-2 product offers good and bad news in 'test tube' strokes

... the PGE2 experienced strokes far more severe than normal animals. Andreasson is now trying to determine if these prostaglandins have a similar protective effect in mouse models of Lou Gehrig's disease, in which excessive glutamate is believed to damage neurons, and will begin work to see if the beneficia...

Murder, eyewitness identification and the limits of human vision

...w much detail is lost is based on 20/20 vision and normal daytime light. It can be adjusted for nighttime or when a person has extremely good or poor eyesight. In the Fairbanks case, a witness standing several blocks away viewed the 1997 beating of one man by four suspects. The suspects were tied to a sep...

Striking a chord with concertgoers to reduce hearing loss

..." adds Bogoch, noting if hearing protection became normal attire at rock concerts even those who were concerned about their appearance would be more inclined to wear them. To identify attendees' beliefs, the research team distributed questionnaires at four rock concerts in Toronto; the 204 questionnaires th...

U of T researchers describe 'Joe Canadian' tongue

...t researchers to use 3-D ultrasound to assess both normal and partially resected tongues during the producti...D topography of the tongue's surface as each of 10 normal speakers produced a variety of speech sounds, Bressmann and Irish were able to describe basic mechan...

Morbidly obese pay nearly twice as much for health care

...e nearly twice those of people considered to be of normal weight, says a study led by University of Cincinnati (UC) researchers. The study found that medical expenditures for morbidly obese adults in the year 2000 were 81 percent more than for normal-weight adults, 65 percent more than overweight adults, an...

Brain synapse formation linked to proteins, Stanford study finds

...ound 40 percent fewer synapses on average than the normal counterparts. These thrombospondins' role of encouraging synapses to form makes sense, given when they are present in the brain: Barres and his group found them in the brains of developing mice during the time that the brain is actively making new sy...

'Broken heart' syndrome: Real, potentially deadly but recovery quick

...s with classic heart attack, and seven to 34 times normal levels. Catecholamine metabolites, such as metanephrine and normetanephrine, were also massively elevated, as were other stress-related proteins, such as neuropeptide Y, brain natriuretic peptide and serotonin. These results provided added confirm...

PCBs, fungicide open brain cells to Parkinson's assault

...make dopamine cells more vulnerable to damage from normal aging, infection, or subsequent exposure to pollut...S. But toxic pesticide exposure, combined with the normal aging process, shifts the equilibrium toward oxidative stress and neurodegeneration. The Rochester ...

Simpler blood thinning medication effective for preventing blood clots and stroke

...ls rose to greater than 3 times the upper limit of normal (an indication of liver toxicity) in 6.0 percent of patients treated with ximelagatran, usually within 6 months and typically declined whether or not treatment continued. "The SPORTIF V trial is the largest yet reported trial involving patients with ...

Abandoned bones suggest TB wiped out leprosy in battle of killer diseases

... Jerusalem dated from the 1st century AD, when the normal burial practice was to wrap it in a shroud, then return after a suitable time and rebury the bones in an ossuary. "In this case, the shrouded body had not been re-buried. We thought there must have been a reason for this, so we decided to look for si...

New math model of heart cell has novel calcium pathway

...tivity. Normal contraction of the heart relies on normal generation of electrical signals, called action po...their organized spread through cardiac tissue. The normal conduction of action potentials is reliant upon sodium channels. But slow conduction of action pot...

News briefs from the journal CHEST, February 2005

...ot be able to fully reduce inflammatory markers to normal levels if lung function is already reduced. The study appears in the February issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians. Benefits of Inhaled Colistin for Children with Cystic Fibrosis Outweigh Risks Coli...

Gender bias in child growth evaluations may miss disease in girls

...ys. Conversely, 38 percent of the boys were within normal height ranges, compared to 20 percent of the girls. "Because our study looked only at the referred children, and not at all the children who were not referred, the meaning of this difference in underlying disease is not clear," said Dr. Grimberg. "I...

Abnormal brain activity during the observation of others' actions

...eciprocal social abilities and perhaps prevent the normal development of empathy....

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