Medical Science News

RSS

Plant compounds from South African daffodils show promise for depression

Scientists at the University of Copenhagen have previously documented that substances from the South African plant species Crinum and Cyrtanthus - akin to snowdrops and daffodils - have an effect on the mechanisms in the brain that are involved in depression.

23 Jun 2012

Researchers uncover why ointment and photodynamic therapy cause pain in skin cancer patients

Apply the ointment, light on, light off - that's how easy it is to cure various forms of non-melanoma skin cancer. However, the majority of patients suffer severe pain during the so-termed photodynamic therapy.

23 Jun 2012

International conference showcases breadth of research possible with zebrafish

It's clear where the black-and-white striped zebrafish got its name, but less obvious at first glance is what zebrafish has to do with biomedical research. Amazingly, it has biological similarities to humans, which are making this small freshwater fish an increasingly popular model organism for studying vertebrate development, genetics, physiology, and mechanisms of disease.

23 Jun 2012

First study to demonstrate that microbes are specific to their host species

Gut bacteria's key role in immunity is tuned to the host species, researchers have found, suggesting that the superabundant microbes lining our digestive tract evolved with us-a tantalizing clue in the mysterious recent spike in human autoimmune disorders.

23 Jun 2012

Wake Forest Baptist researchers achieve early milestone in lab-engineered kidney project

Regenerative medicine researchers at Wake Forest Baptist Medical Center have reached an early milestone in a long-term project that aims to build replacement kidneys in the lab to help solve the shortage of donor organs.

23 Jun 2012

A potential drug target for NK/T-cell lymphoma

A discovery by Van Andel Institute researchers has identified a potential drug target for NK/T-cell lymphoma, a type of cancer responsible for claiming the life of a close friend and fellow researcher.

22 Jun 2012

Novel small-molecule-inhibiting drug stops spread of breast cancer cells

Scientists have developed a small-molecule-inhibiting drug that in early laboratory cell tests stopped breast cancer cells from spreading and also promoted the growth of early nerve cells called neurites.

22 Jun 2012

Emory scientists identify new type of anti-inflammatory compound

Scientists at Emory University School of Medicine have identified a new type of anti-inflammatory compound that may be useful in treating a wide range of conditions, including neurodegenerative and autoimmune diseases. These compounds inhibit the enzyme Nox2, part of a family of enzymes responsible for producing reactive oxygen species (ROS).

22 Jun 2012

Researchers identify genes that cooperate in development of medulloblastoma

St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project lifts lid on the most aggressive subtype of medulloblastoma and finds genes that cooperate in tumor development.

22 Jun 2012

Gene expression and peripheral blood as tools for pinpointing genes linked to autism

UCLA researchers have combined two tools - gene expression and the use of peripheral blood -- to expand scientists' arsenal of methods for pinpointing genes that play a role in autism. Published in the June 21 online edition of the American Journal of Human Genetics, the findings could help scientists zero in on genes that offer future therapeutic targets for the disorder.

22 Jun 2012

Grb2 switch controls normal signaling through fibroblast growth factor receptor

Once considered merely a passive link between proteins that matter, Grb2 - pronounced "grab2" - actually lives up to its nickname with its controlling grip on an important cell signaling pathway, scientists at The University of Texas MD Anderson Cancer Center report in the June 22 issue of Cell.

22 Jun 2012

Protein in blood can predict improper growth of fetus

Researchers from the Ottawa Hospital Research Institute (OHRI) and the University of Ottawa (uOttawa) have found a protein in the blood of pregnant women that can predict if they are likely to have a fetus that doesn't grow properly, and thus has a high risk of stillbirth and long-term health complications.

22 Jun 2012

Evolutionary principles of natural selection may be applied to successfully manage cancer

According to researchers at Moffitt Cancer Center, cancer is subject to the evolutionary processes laid out by Charles Darwin in his concept of natural selection. Natural selection was the process identified by Darwin by which nature selects certain physical attributes, or phenotypes, to pass on to offspring to better "fit" the organism to the environment.

22 Jun 2012

Parents must be considered during expansion of genetic screening programs for newborns

Parents must be considered when states decide to expand genetic screening programs for newborns, according to a new study that looked at mandatory testing panels and political pressure by advocacy groups.

22 Jun 2012

New methods to track stem cells

Researchers at the University of Liverpool have developed new methods to track stem cells and further understanding of what happens to them after they have been in the body for a significant period of time.

22 Jun 2012

Faulty conclusions due to contamination, misidentification and redundancy in widely available cell lines

Modern cancer therapies start in cells - researchers compare cancer samples to healthy cells to discover how cancer is genetically different, and use cell lines to test promising new drugs. However, a University of Colorado Cancer Center study published this week in the journal Gynecologic Oncology shows that due to a high rate of contamination, misidentification and redundancy in widely available cell lines, researchers may be drawing faulty conclusions.

22 Jun 2012

New melatonin analogues more efficient in inhibiting NOS activity in Parkinson's disease

University of Granada researchers have tested melatonin analogues in rats as it inhibits the enzyme nitric oxide synthase (NOS), which is involved in the development of conditions as inflammatory bowel disease, septic shock or rheumatoid arthritis, as well as in neurodegenerative conditions as Huntington's disease, Alzheimer's disease, Parkinson's disease and amyotrophic lateral sclerosis.

22 Jun 2012

Scientists identify cause of double-cortex syndrome

Researchers at McGill University have discovered the cause of an inherited form of epilepsy. The disease, known as double-cortex syndrome, primarily affects females and arises from mutations on a gene located on the X chromosome. Drs. Susanne Bechstedt and Gary Brouhard of the Department of Biology have used a highly advanced microscope to discover how these mutations cause a malformation of the human brain.

22 Jun 2012

Patients with MS appear to have reduced risk of cancer

Multiple sclerosis (MS) patients appear to have a lower cancer risk, according to a new study led by researchers at the University of British Columbia and Vancouver Coastal Health.

22 Jun 2012

Selenium reduces Staph populations in medical implants

Selenium is an inexpensive element that naturally belongs in the body. It is also known to combat bacteria. Still, it had not been tried as an antibiotic coating on a medical device material. In a new study, Brown University engineers report that when they used selenium nanoparticles to coat polycarbonate, the material of catheters and endotracheal tubes, the results were significant reductions in cultured populations of Staphylococcus aureus bacteria, sometimes by as much as 90 percent.

22 Jun 2012