Medical News

RSS

Aging profile of the human brain differs greatly from that seen in chimpanzees

Researchers have found that the two primary areas of the human brain appear to age in radically different ways: The cortex used in higher-level thought undergoes more extensive changes with age than the cerebellum, which regulates basic processes such as heartbeat, breathing and balance.

2 Aug 2005

Study finds risk of death increases with peritoneal dialysis over hemodialysis

Researchers at Johns Hopkins have found that in people with end-stage kidney disease (ESRD), choosing peritoneal dialysis over hemodialysis increases their risk of dying by 50 percent.

2 Aug 2005

Drugs with similar chemical attributes as Ecstasy might offer useful alternatives to current therapies for Parkinson's disease

Amphetamines, including the drug popularly known as Ecstasy, can reverse the symptoms of Parkinson's disease in mice with an acute form of the condition, according to new research at Duke University Medical Center.

2 Aug 2005

Study findings offer hope of identifying new at-risk population for pancreatic cancer

According to a study published in the American Gastroenterological Association (AGA) journal Gastroenterology, 1 in 120 people newly diagnosed with diabetes age 50 and older have a higher risk of developing pancreatic cancer - a risk that is eight times more than expected for the general population.

2 Aug 2005

Elderly need to make sure they get enough vitamin B12

These days, most health warnings about vitamins focus on the danger of overdose. For vitamin B12, though, it's more likely that people are getting too little. In fact, B12 deficiency is the most common nutritional deficiency in the developing world and possibly in the United States as well, reports the August issue of the Harvard Health Letter.

2 Aug 2005

Protein called cyclin D1 disrupts BRCA1's normal role as a cancer inhibitor

For about a decade, scientists have recognized that many cases of hereditary breast cancer result from a mutation of a specific gene called BRCA1, which, in its normal state, helps keep tumor formation in check. About five to 10 percent of breast cancer cases are linked to genetic miscues, about half of which are linked to BRCA1.

2 Aug 2005

New laser therapy that destroys cancer cells but leaves healthy ones unharmed

Scientists at Stanford University have developed a new laser therapy that destroys cancer cells but leaves healthy ones unharmed. The new, non-invasive treatment is described in a study published in the Aug. 1 online edition of the Proceedings of the National Academy of Sciences (PNAS).

2 Aug 2005

Surgical myectomy gives fresh start to patients with hypertrophic cardiomyopathy

Hypertrophic cardiomyopathy (HCM), an abnormal thickening of the heart, affects more than 500,000 Americans, making it more common than better-known conditions such as Crohn's disease, Multiple Sclerosis and Anorexia Nervosa.

2 Aug 2005

Aging and gene expression in the primate brain

While medical science and a healthy lifestyle can help increase life expectancy, many aspects of aging and longevity are beyond our control. Published this week in the open-access journal PLoS Biology, Michael Eisen and colleagues shed light on these genetic factors by identifying sets of genes whose expression changes with age in human and chimp brains.

2 Aug 2005

Two-thirds of American women find out about their pregnancies by using a home pregnancy test

In a recent survey undertaken on behalf of First Response, and released in conjunction with a partnership with the March of Dimes aimed at improving pregnancy outcomes, reveals two-thirds (67 percent) of American women aged 18 to 44 who became pregnant found out about their pregnancies by using a home pregnancy test.

2 Aug 2005

Women's preference for female colonoscopists hinders colon cancer screening

In a study conducted by researchers at the Division of Gastroenterology, University of Michigan, Ann Arbor, and published in the current (August) issue of Gastrointestinal Endoscopy (GIE) by the American Society for Gastrointestinal Endoscopy (ASGE), 43% of the women who were asked their preference of a male or female endoscopist said female, while only 1.4% said male and the rest had no preference.

2 Aug 2005

Arf gene prevents excessive growth of blood vessels in the developing eye

A gene better known for its role in preventing cancer also plays a key role in the developing embryo, where the gene prevents excessive growth of blood vessels, according to investigators at St. Jude Children's Research Hospital.

2 Aug 2005

Living Cell Technologies announces results for treating Huntington's disease

Living Cell Technologies announced pre-clinical results today showing its brain protection product, NeurotrophinCell (NtCell) produces a marked reduction in the size of brain lesions in a Huntington's disease (HD) model.

2 Aug 2005

MediciNova starts phase II clinical trial of MN-166 for multiple sclerosis

MediciNova today announced the enrollment of patients in a Phase II clinical study with MN-166 for the treatment of multiple sclerosis (MS), an inflammatory demyelinating disease of the central nervous system. MN-166 is an orally administered drug with a novel mechanism of action that includes the inhibition of phosphodiesterase IV.

2 Aug 2005

Mini-beacon design a major development for smart drug delivery

A nanoscopic beacon used by Melbourne researchers will help to enhance the design of smart gene and drug delivery systems.

1 Aug 2005

Researchers characterize the proteome of the human cornea

In doing so, they have identified 141 distinct proteins, 99 of which had not been previously recognized in mammalian corneas. The details of their findings appear in the August/September issue of Molecular and Cellular Proteomics, an American Society for Biochemistry and Molecular Biology journal.

1 Aug 2005

Visceral obesity may be an important risk factor for insulin resistance syndrome in children

Waist circumference is associated with insulin resistance in children and may offer a simple way to identify children with risk factors for cardiovascular disease and type 2 diabetes, according to a study in the August issue of Archives of Pediatrics & Adolescent Medicine.

1 Aug 2005

Discovery that oxidative stress from pollen is as important as antigen exposure could lead to new therapies

For a person with allergies or asthma, breathing in pollen can be a very bad thing. Within minutes of inhalation by someone sensitive to their effects, these tiny particles can trigger severe inflammation of the respiratory passages, producing uncontrollable sneezing, coughing, or extreme shortness of breath -- symptoms agonizingly familiar to those who suffer from allergy and asthma attacks.

1 Aug 2005

Pregnancy fears on drinking water byproducts may be overstated

Fears that chemical byproducts resulting from purifying drinking water with chlorine boost the chances that pregnant women will miscarry were not supported by the results of a major new study. If such threats exist at all, which is uncertain, they likely are modest, it concludes.

1 Aug 2005

Researchers unravel control of growing blood vessels

Researchers at UT Southwestern Medical Center have discovered a basic mechanism by which smooth muscle cells that line the blood vessels can grow - sometimes abnormally - suggesting methods of treatment for various coronary diseases.

1 Aug 2005