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Human umbilical cord blood cells may widen treatment window for stroke

An experimental treatment that spares disability from acute stroke may be delivered much later than the current three-hour treatment standard – a potential advance needed to benefit more stroke victims.

13 Nov 2005

Vitamin D sufficiency may be more important than high calcium intake for maintaining calcium metabolism

Calcium intake levels of more than 800 mg/day may be unnecessary for maintaining calcium metabolism if vitamin D status is adequate, according to a study in the November 9 issue of JAMA: The Journal of the American Medical Association.

10 Nov 2005

New understanding of sphingosine kinases called SphK1 and SphK2

Virginia Commonwealth University Massey Cancer Center researchers have found that two enzymes that catalyze the same reaction and produce the same product have opposite effects on cell growth and death.

7 Nov 2005

Fundamental insight about protein evolution

While searching for new targets for malaria drugs and vaccines, a team including a Howard Hughes Medical Institute (HHMI) medical student fellow reached a fundamental insight about evolution: different species make use of similar sets of proteins in different ways.

3 Nov 2005

First study to confirm the benefit of anti-angiogenic therapy in patients with breast cancer

Results from the first and only interim analysis of an important trial assessing the potential of Herceptin (trastuzumab) to improve disease-free survival (DFS) in HER-2 positive breast cancer patients after adjuvant chemotherapy, have shown that Herceptin affords a significant survival advantage.

1 Nov 2005

Scientists unravel complex mechanisms in the brain that regulate body weight

Scientists are one step closer to unraveling the complex mechanisms in the brain that regulate body weight. Working with mice -- whose appetites are controlled by systems very similar to those in humans – they have identified a specific type of neuron that is essential for feeding behavior.

30 Oct 2005

Little evidence exists to support the widespread use of bronchodilators to treat children and adults with cystic fibrosis

"Recurrent wheeze and breathlessness are common in people with cystic fibrosis, and bronchodilators are commonly prescribed," according to lead author Clare Halfhide, M.D., of the Royal Liverpool Children's Hospital in England. "Despite their wide-scale and often long-term use, there is limited objective evidence about their efficacy in cystic fibrosis."

25 Oct 2005

Surgery to treat obesity far more risky for men

Researchers say that using stomach-shrinking surgery to treat severe obesity is riskier than previously thought for men, the elderly and people with conditions such as hypertension.

19 Oct 2005

Hormone responsible for types of high blood pressure could also cause preeclampsia

Researchers at the University of Cincinnati (UC) Academic Health Center have found evidence of a hormone they say is responsible for certain types of high blood pressure (hypertension), and could also cause preeclampsia, a potentially dangerous condition that occurs during pregnancy.

17 Oct 2005

High fat, low carb diet may help Alzheimer's sufferers

Scientists have discovered that a high fat, low carbohydrate diet improves Alzheimer's disease in mice and say the study results may also have implications for dieters.

17 Oct 2005

High fat, low carb diet improves Alzheimer's disease in mice

A report published today in the BioMed Central, open access journal Nutrition and Metabolism, showed that a brain protein, amyloid-beta, which is an indicator of Alzheimer's disease, is reduced in mice on the so-called ketogenic diet.

16 Oct 2005

$Older men with Parkinson's disease at increased risk of bone fractures$

Older men with Parkinson's disease at increased risk of bone fractures

Researchers found that Parkinson’s disease (PD) in older men is associated with lower bone mineral density and suggested that physicians should consider screening older male patients with PD for osteoporosis.

12 Oct 2005

Newly discovered hormone plays an important role in the digestion of fat, cholesterol, and fat-soluble vitamins

A newly discovered hormone plays an important role in the digestion of fat, cholesterol, and fat-soluble vitamins, such as vitamins A, E, and D, according to a new study in the October 2005 issue of Cell Metabolism.

11 Oct 2005

Discovery provides an understanding of the mechanisms of oocyte death and a way to identify potential clinical treatments for infertility

An immature egg's internal nutrient supply is critical to its survival, an insight that offers a new route to understanding and treating infertility due to egg death, according to Duke University Medical Center researchers.

9 Oct 2005

Fruits and vegetables can increase or decrease the activity and toxicity of orally-administered drugs

Eating fruits and vegetables is essential to living a long and healthy life, yet research has shown they can cause dangerous interactions with medicines.

5 Oct 2005

Cells have developed a surprising transportation system for their endosomes

...according to research published today in Physical Review Letters, "Dynamics and Spatial Organization of Endosomes in Mammalian Cells."

5 Oct 2005

Survey highlights the need to increase folic acid fortification of the grain supply

Only one-third of childbearing age women are taking a multivitamin containing the B vitamin folic acid daily to prevent serious birth defects of the brain and spine in their future babies, according to a decade of March of Dimes surveys.

3 Oct 2005

Nanoparticles as an invisible diet

Utah State University researchers are in the early stages of scientifically tricking the body into eating less and finding a treatment for obesity without dangerous side effects.

28 Sep 2005

Fruit fly discovery could lead to a completely new approach to tackling some cancers

Scientists studying the humble fruit fly have found a family of proteins that enhances the sensitivity of a cell to a hormone that can trigger abnormal growth and cancer. Their discovery could lead to a completely new approach to tackling some cancers and the development of new drugs to stop uncontrolled growth in a wide variety of tumour cells.