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Plaques in the brain more likely to be expressed as dementia in women than in men

Researchers from the Rush Alzheimer's Disease Center found that plaques and tangles in the brain, the changes seen in people with Alzheimer's disease (AD), are more likely to be expressed as dementia in women than in men.

25 Jul 2005

Multi-species genome comparison sheds new light on evolutionary processes

An international team that includes researchers from the National Human Genome Research Institute (NHGRI) has discovered that mammalian chromosomes have evolved by breaking at specific sites rather than randomly as long thought - and that many of the breakage hotspots are also involved in human cancer.

25 Jul 2005

Scientists have identified the first genetic mutations that cause the aorta to widen, tear and rupture

Finding biological markers that flag aneurysm, a bulging of the aorta that leads to dissection, a lengthwise separation of tissues in the artery wall, is critically important for early diagnosis.

25 Jul 2005

Fragile X-associated tremor/ataxia syndrome difficult to diagnose

Fragile X-associated tremor/ataxia syndrome can be difficult to diagnose and should have guidelines for diagnostic testing, according to a study in the July 26 issue of Neurology, the scientific journal of the American Academy of Neurology. A second study found chemotherapy aggravated symptoms in one woman's case.

25 Jul 2005

Bodily illusions rearrange the sense of touch

The brain is bombarded by information about the physical proportions of our bodies. The most familiar sensations, such as a puff of wind or the brush of our own shirt sleeve, serve to constantly remind the brain of the body's outer bounds, creating a sense of what is known as proprioception.

25 Jul 2005

Gene that regulates normal embryonic development is found at high levels in virtually all forms of breast cancer

A gene that appears to help regulate normal embryonic development is found at high levels in virtually all forms of breast cancer, according to a new study led by Laszlo Radvanyi, Ph.D., associate professor of breast and melanoma medical oncology at The University of Texas M. D. Anderson Cancer Center.

25 Jul 2005

Cancer survivors initiate diet, exercise, and other beneficial lifestyle changes following a cancer diagnosis

An analysis of more than 100 studies of cancer survivors shows that many survivors initiate diet, exercise, and other beneficial lifestyle changes following a cancer diagnosis, but that those who are male, older, and less educated are less likely to adopt such changes. The term "cancer survivor" refers to a person who has been diagnosed with cancer.

25 Jul 2005

Vitamin D supplementation does not appear to prevent bone loss in postmenopausal black women

Although there is general agreement on the optimal calcium intake recommended for reducing postmenopausal bone loss, and it is recognized that vitamin D is important in calcium maintenance, the optimal intake of vitamin D is controversial, according to background information in the article.

25 Jul 2005

Rates of breast biopsy remained stable over a 12 year period even as mammogram use increased

Rates of breast biopsy (removal of tissue for diagnostic evaluation) remained stable over a 12 year period even as mammogram use increased and new and less invasive biopsy techniques were introduced, according to a study in the July 25 issue of Archives of Internal Medicine.

25 Jul 2005

New insight into age-related macular degeneration

Age-related macular degeneration is the leading cause of blindness in older adults, yet researchers are still in the dark about many of the factors that cause this incurable disease.

25 Jul 2005

Multiple rare mutations within a single gene may increase risk for autism

While debate still rages over the 'cause' of autism, mounting evidence suggests that genetic factors play a major role in the disease.

25 Jul 2005

Breathing in large quantities of salt particles has just the same effect on blood pressure as eating a salty diet

Workers in salt factories, who inhale large amounts of salt particles, are at risk of high blood pressure due to the increased salt intake.

25 Jul 2005

Variation in HIV's ability to disable host defenses contributes to rapid evolution

One of the reasons HIV is so difficult to contain and treat is its rapid evolution. Understanding how host defenses and viral countermeasures contribute to that evolution is vital.

25 Jul 2005

Percutaneous core-needle biopsy, provides samples of tissue suitable for accurate initial diagnosis of a solid tumor

Inserting biopsy needles through the skin appears to be a safe and reliable alternative to surgery for obtaining diagnostic samples of a suspected solid tumor in children, according to results of a study by investigators at St. Jude Children's Research Hospital.

25 Jul 2005

Mixture of 8 bacteria (VSL#3) for 6 weeks helps ulcerative colitis

A mixture of bacteria developed in part by University of Alberta researchers has been proven highly effective in treating people suffering from ulcerative colitis.

25 Jul 2005

Plant toxins in the diets of early humans drove the evolution of taste

Plant toxins in the diets of early humans drove the evolution of a bitter taste receptor better able to detect them, suggests new genetic research by scientists at University College London, Duke University Medical Center, and the German Institute of Human Nutrition.

25 Jul 2005

Testosterone patch may produce modest increases in sexual desire

A testosterone patch may produce modest increases in sexual desire and frequency of satisfying sexual experiences in women who develop distressful, low sexual desire following hysterectomy and removal of the fallopian tubes and ovaries, according to a study in the July 25 issue of Archives of Internal Medicine.

25 Jul 2005

In vivo engineering of organs: The bone bioreactor

An international team of biomedical engineers has demonstrated for the first time that it is possible to grow healthy new bone reliably in one part of the body and use it to repair damaged bone at a different location.

25 Jul 2005

Stem cell therapy can be used effectively to treat heart attacks, or myocardial infarction, in pigs

In just two months, stem cells harvested from another pig's bone marrow and injected into the animal's damaged heart restored heart function and repaired damaged heart muscle by 50 percent to 75 percent.

25 Jul 2005

Study offers a unique perspective on the beginnings of the alcohol experience and usage patterns of 12-year-olds

Clues looking into the root causes of alcoholism are emerging from new findings that center on the genetic patterns of young drinkers, with particular focus on why adolescents are more likely to drink large quantities of alcohol even if they need more alcohol to get the effects they desire.

25 Jul 2005

Medical News

Plaques in the brain more likely to be expressed as dementia in women than in men

Multi-species genome comparison sheds new light on evolutionary processes

Scientists have identified the first genetic mutations that cause the aorta to widen, tear and rupture

Fragile X-associated tremor/ataxia syndrome difficult to diagnose

Bodily illusions rearrange the sense of touch

Gene that regulates normal embryonic development is found at high levels in virtually all forms of breast cancer

Cancer survivors initiate diet, exercise, and other beneficial lifestyle changes following a cancer diagnosis

Vitamin D supplementation does not appear to prevent bone loss in postmenopausal black women

Rates of breast biopsy remained stable over a 12 year period even as mammogram use increased

New insight into age-related macular degeneration

Multiple rare mutations within a single gene may increase risk for autism

Breathing in large quantities of salt particles has just the same effect on blood pressure as eating a salty diet

Variation in HIV's ability to disable host defenses contributes to rapid evolution

Percutaneous core-needle biopsy, provides samples of tissue suitable for accurate initial diagnosis of a solid tumor

Mixture of 8 bacteria (VSL#3) for 6 weeks helps ulcerative colitis

Plant toxins in the diets of early humans drove the evolution of taste

Testosterone patch may produce modest increases in sexual desire

In vivo engineering of organs: The bone bioreactor

Stem cell therapy can be used effectively to treat heart attacks, or myocardial infarction, in pigs

Study offers a unique perspective on the beginnings of the alcohol experience and usage patterns of 12-year-olds

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