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Extensive gene traffic, the process of genes leaving and arriving on the chromosome

Researchers at the University of Chicago have discovered there is extensive gene “traffic”—the process of genes leaving and arriving on the chromosome—on the mammalian X chromosome. They also have overturned a conventional theory about how genes evolved on the sex chromosome.

16 Apr 2004

Certain prostate cancer cell lines are unable to repair DNA damage caused by "free radicals"

16 Apr 2004

New insights into how tumors neutralize CD8 T cells

Scientists have speculated that this may be because the immune response is not strong enough, or because it does not last long enough to have an effect. Hence the increasing efforts to develop cancer vaccines that induce, strengthen, and increase the duration of immunological attack against cancer cells.

16 Apr 2004

Diabetic eye disease on the rise

With the aging of the population, the number of Americans with major eye diseases is increasing, and vision loss is becoming a major public health problem. By the year 2020, the number of people who are blind or have low vision is projected to increase substantially. These findings appear in the April issue of Archives of Ophthalmology.

15 Apr 2004

Hugs and kisses halve risk of heart attack

Having a really close relationship with another person, whether it be friend, lover, or relative, can halve the risk of further heart attacks, suggests research in Heart.

14 Apr 2004

Muscle stem cells morph to resemble nerve cells

Taking a major step forward in stem cell biology, researchers at The University of Texas M. D. Anderson Cancer Center have turned muscle progenitor cells — stem cells that are “committed” to becoming muscle tissue — into cells that look and act like neurons (nerve cells).

14 Apr 2004

Ground-breaking discoveries relating to the formation of kidney stones

Ground-breaking discoveries relating to the formation of kidney stones have earned Flinders University researchers a grant of more than $1.2 million (Australian) from the National Institutes of Health (NIH), the major funding body for medical science in the United States.

14 Apr 2004

Vast majority of college smokers don't quit

Almost 90 percent of college students who were daily smokers and 50 percent of occasional smokers were still smoking four years later, according to a study conducted at the University of Wisconsin-Madison and just published in the current issue of Health Psychology.

14 Apr 2004

Extra funding aids brain research

A healthy arrival of funds over the past couple of years has produced "endorphins" in McMaster’s "brain" that has psychology researchers very excited.

14 Apr 2004

Researchers examine community-based drinkers rather than abstinent alcoholics

Almost all knowledge about brain damage due to chronic alcohol consumption has been gathered from alcoholics, who have generally been studied toward the end of their institutionalized treatment program (several weeks after their last drink) or many months into abstinence.

13 Apr 2004

Growth hormones combat Crohn’s disease, cardiac disorders and improve fertility in invitro fertilisation

New treatments for breast cancer, skin and wound healing and obesity will be revealed at an international conference in Cairns, Australia next week.

13 Apr 2004

Researchers have developed a new method for finding antigens

Researchers at National Jewish Medical and Research Center have developed a method for finding the molecular targets of the immune system, known as antigens.

13 Apr 2004

New research into World Trade Center firefighter respiratory symptoms

Researchers from New York and the Centers for Disease Control and Prevention in Ohio found that arrival time and length of exposure to the World Trade Center (WTC) disaster were significant predictors of respiratory symptoms and lung function decline among firefighters.

12 Apr 2004

Both sides of brain working together are key to math giftedness

There really may be something different about the brains of math-heads. Mathematically gifted teens did better than average-ability teens and college students on tests that required the two halves of the brain to cooperate, as reported in the April issue of Neuropsychology, published by the American Psychological Association (APA).

12 Apr 2004

Vitamin E appears to cut in half people's risk of bladder cancer

Getting plenty of vitamin E by eating foods like nuts and olive oil appears to cut in half people's risk of bladder cancer, the fourth leading cancer killer among men, a new study suggests.

12 Apr 2004

Surprises found In gene variation associated with schizophrenia

Approximately two percent of Caucasians have a gene segment variation that can cause a certain form of schizophrenia. Most people with the variation, known as a polymorphism, do not have the disease. A University of Iowa Health Care study reveals a good prognosis for people who do have this form of schizophrenia.

12 Apr 2004

DNA free radical damage research

Certain prostate cancer cell lines are unable to repair DNA damage caused by "free radicals," according to scientists at the National Institute of Standards and Technology (NIST) and National Institutes of Health (NIH). This type of damage has been implicated before in the development of prostate cancer, but the new research provides the first solid evidence that the normal repair process is altered in prostate cancer cells, possibly leading to a cascade of events that culminate in further DNA damage and cellular dysfunction.

9 Apr 2004

Cell research to eventually develop new treatments for cancer and disorders such as Parkinson’s and Huntington’s disease

Medical Research Council (MRC) scientists have made an important advance in understanding the biological processes involved when cells die. The work may help scientists to eventually develop new treatments for cancer and disorders such as Parkinson’s and Huntington’s disease.

8 Apr 2004

Genetic trick makes gene therapy vectors more versatile

A genetic trick used by viruses to replicate themselves has been adapted for laboratory use to build complex protein structures required by immune system cells, according to investigators at St. Jude Children’s Research Hospital.

7 Apr 2004

New research findings in study of Rett Syndrome

Rudolf Jaenisch of the Whitehead Institute of Biomedical Research in Cambridge, MA reports in the April 6, 2004 online issue of the Proceedings of the National Academy of Sciences that introduction of the MeCP2 protein into post-mitotic nerve cells of MeCP2 mutant mice rescues the symptoms of Rett Syndrome. This raises the possibility that neurons are functionally normal in a newborn child and that neural dysfunction manifests itself only later due to prolonged MeCP2 deficiency. If correct, therapeutic strategies aimed at preventing the onset of Rett symptoms could be initiated at birth.

7 Apr 2004