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South Africa now 2nd only to India in HIV/AIDS cases

New figures from the South African Department of Health say more than 6.5 million of the country's 47 million people may now be HIV-positive.

12 Jul 2005

Metabolic syndrome prevented by a fit heart

According to a new study, a person's cardiorespiratory fitness is a strong predictor of their risk of developing metabolic syndrome.

12 Jul 2005

Statins not effective in reducing dementia risk

According to a recently published study, the use of statins and other lipid-lowering agents by older adults is not associated with a reduced risk of Alzheimer's disease or other types of dementia.

12 Jul 2005

If strawberries weren't red they wouldn't cause allergies

Researchers say if strawberries were another colour they might be safer for allergy sufferers to eat.

12 Jul 2005

Menopause symptoms return with a vengence when women stop HRT

In somewhat depressing news for women battling that often miserable phase in their lives, the menopause, it appears that more than half of women who start taking hormone replacement therapy to relieve the discomfort, can expect to see a dramatic resurgence of those symptoms, when they discontinue the therapy.

12 Jul 2005

EU upholds food supplement ban - rejects appeal by health groups

The European Court of Justice has upheld a controversial law which could ban hundreds of vitamin and mineral supplements from being sold in Britain.

12 Jul 2005

Serotonin may play a role in maintaining circadian rhythm

Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies.

12 Jul 2005

Most perinatal strokes lead to neurologic disorders

Four of five newborn infants who experience a stroke around the time of birth will develop neurologic disorders such as cerebral palsy, epilepsy, or language delay, according to a study published online July 11, 2005, in the Annals of Neurology.

12 Jul 2005

Dopamine plays critical role in the modulation of sleep, wake, and arousal states

Methamphetamine, the drug of choice for long-distance truckers and college students pulling all-nighters, appears to do a similar trick for fruit flies, too.

12 Jul 2005

New insights into brain cell metabolism from PET and MRI scans

By discovering a crucial piece of submicroscopic information about how the brain converts fuel into energy for neurons, Cornell University biophysicists have gleaned new insights into brain cell metabolism that will allow neurologists to better interpret data from such diagnostic tests as positron emission tomography (PET) scans and a specialized magnetic resonance imaging (MRI) test.

12 Jul 2005

Curcumin has potent anticancer powers

Curcumin, a spice commonly used in curries and other south Asian cooking, blocks a key biological pathway needed for development of melanoma and other cancers, say researchers from the University of Texas M. D. Anderson Cancer Center.

12 Jul 2005

Age may work in reverse when it comes to raising grandchildren

...suggests a University of Florida study that finds younger grandmothers in this role are depressed more often than their older counterparts.

12 Jul 2005

Researchers have pinpointed specific gene and protein over-production in metastatic melanoma

Gene amplification is a process that often happens in cancer cells when the normal DNA replication process is altered, causing many copies of the gene to be produced instead of a single copy of a region of a chromosome.

12 Jul 2005

Possible cure for Huntington's disease

Boosting levels of two critical proteins that normally shut down during Huntington's disease, researchers at the University of Wisconsin-Madison and the Cold Spring Harbor Laboratory have cured fruit flies of the genetic, neurodegenerative condition.

12 Jul 2005

Study focuses on peripheral arterial disease - availability of vascular surgeons impacts amputation rate

Patients with peripheral arterial disease (PAD) are more likely to have a foot or leg amputated if they live in a region that has few vascular surgeons, according to a Rice University/Baylor College of Medicine study published in the July issue of the Journal of Vascular Surgery.

12 Jul 2005

Every baby born in the United States should receive screening for a uniform panel of 29 disorders

Expanded newborn screening is now required by law in dozens of states, but most infants still are not covered by the full panel of 29 tests recommended by experts, according to the March of Dimes 2005 state-by-state report card on newborn screening.

12 Jul 2005

Current scientific understanding does not justify the reduction of the daily salt intake for healthy people

In a reaction to the European Food Safety Authority's (EFSA) announcement at the end of June, the European Salt Producers' Association, in brief EuSalt, maintains its position that the current scientific understanding does not justify the reduction of the daily salt intake for healthy people.

12 Jul 2005

Sirna Therapeutics granted new UK patents

Sirna Therapeutics has announced that the United Kingdom (UK) Patent Office has granted the Company two additional short interfering RNA (siRNA) target patents. The first patent covers any siRNA with one or more chemical modifications targeting Vascular Endothelial Growth Factor (VEGF).

12 Jul 2005

Outer lining of the umbilical cord is a rich source of stem cells

CellResearch Corporation in Singapore and its team of scientists, headed by Chief Scientist, Dr Phan Toan Thang, have recently made a revolutionary discovery: that the outer lining of the umbilical cord is a rich source of stem cells.

12 Jul 2005

Sunscreen plays a much more important role than just protecting against sunburn

The number of nevi, or moles, a person has is known to be a strong predictor of the future risk of developing skin cancer, particularly melanoma, the most deadly form of the disease. This number also is believed to be affected by the amount of sun exposure an individual receives.

12 Jul 2005