Medical Science News

RSS

New study focuses on chronic parental reactive negativity

Any parent knows that sometimes maintaining your cool with misbehaving children is a challenge. We all have times when we get frustrated or angry and lash out at someone without thinking. A new study by psychologists at Virginia Tech and two other universities suggests that parents with poorer working memory skills are less likely to be able to control their emotions with their children.

9 Dec 2009

Laser technique used to change metal colors could have important implications for medicine

University of Rochester optics professor Chunlei Guo made headlines in the past couple of years when he changed the color of everyday metals by scouring their surfaces with precise, high-intensity laser bursts.

9 Dec 2009

Rats exposed to passive smoking become dependent on nicotine, reveals study

Rats passively exposed to tobacco smoke become dependent on nicotine, according to a new study by Dr. Adrie Bruijnzeel and colleagues from the University of Florida in the US. Their findings of how rats' brains respond to exposure to tobacco smoke have implications for the study of the effects of tobacco smoke on the human brain even from passive exposure to other smokers, and for future studies testing new treatments for tobacco addiction. Their work has just been published online in Springer's journal Psychopharmacology.

9 Dec 2009

TECHGENE project: CLC bio selected as software partner

Today the EU project, TECHGENE, that focuses on developing Next Generation Sequencing (NGS) diagnostic tools for genetic disorders, announced that CLC bio has been selected as the software partner for this project.

9 Dec 2009

Scientists discuss sex lives of fruit flies

Females can be too attractive to the opposite sex -- too attractive for their own good -- say biologists at UC Santa Barbara. They found that, among fruit flies, too much male attention directed toward attractive females leads to smaller families and, ultimately, to a reduced rate of population-wide adaptive evolution.

9 Dec 2009

Human blood stem cells can be engineered to kill HIV and other chronic viral diseases

Researchers from the UCLA AIDS Institute and colleagues have for the first time demonstrated that human blood stem cells can be engineered into cells that can target and kill HIV-infected cells - a process that potentially could be used against a range of chronic viral diseases.

9 Dec 2009

Research study on breast cancer susceptibility in rats

Social isolation and stress appear to increase susceptibility to breast cancer in rats, a US study has suggested.

9 Dec 2009

New findings may help restore vision in patients with corneal injury

Winston Whei-Yang Kao, PhD, professor of ophthalmology, along with other researchers in UC's ophthalmology department found that transplanting human umbilical mesenchymal stem cells into mouse models that lack the protein lumican restored the transparency of cloudy and thin corneas.

9 Dec 2009

Discovery of new compounds may dispel cravings of methamphetamine and cocaine addiction

Sarah Steele and Langtian "Ren" Yuan were both self-admittedly inexperienced Duke freshmen in the spring of 2006. But then they followed helpful directions of an assistant chemistry professor, added their own patience and ingenuity, and ended up identifying compounds that might allay the powerful cravings of methamphetamine and cocaine addiction.

9 Dec 2009

Researchers describe how PDNF protein prolongs the life of T. cruzi parasite

The parasite Trypanosoma cruzi (or T. cruzi), which causes Chagas' disease, will go to great lengths to evade death once it has infected human host cells, researchers have discovered. In a study published in the November 17 online issue of Science Signaling, the researchers describe how a protein called parasite-derived neurotrophic factor (PDNF) prolongs the life of the T. cruzi parasite by activating anti-apoptotic (or anti-cell-death) molecules in the host cell. These protective mechanisms help to explain how host cells continue to survive despite being exploited by T. cruzi parasites.

9 Dec 2009

Breakthrough findings may lead to new treatments for Ebola hemorrhagic fever

Scientists at The Scripps Research Institute have determined the structure of a critical protein from the Ebola virus, which, though rare, is one of the deadliest viruses on the planet killing between 50 and 90 percent of those infected.

9 Dec 2009

New regenerative therapies for heart disease being developed

Bioengineers from University of California, San Diego are developing new regenerative therapies for heart disease. The work could influence the way in which regenerative therapies for cardiovascular and other diseases are treated in the future.

9 Dec 2009

University of Texas launches phase II clinical trial to test stem-cell-based therapy on injured heart muscle

The second phase of a clinical trial testing a new stem-cell-based therapy on injured heart muscle has been launched by researchers at The University of Texas Medical School at Houston. It is the only study site in the Texas Medical Center.

9 Dec 2009

Researchers study incidence of heterosis for different characteristics

When two gene pools combine, you might expect the characteristics of the offspring to end up somewhere in the middle between those of its parents. But children often have characteristics that are better or worse than that middle value, sometimes even better than both parents.

9 Dec 2009

Successful reduction in the levels of aggregated Abeta with GSMs

EnVivo Pharmaceuticals today reported the successful reduction in the levels of aggregated Abeta or Beta-Amyloid in an aged transgenic model (Tg2576) of Alzheimer's disease with its lead gamma-secretase modulator (GSM) EVP-0962. The aggregated Abeta, containing predominately oligomeric and larger Abeta fibrillar species, is considered to be the toxic entity in Alzheimer's disease.

9 Dec 2009

Mouse model may help identify unknown mutations that make lung cancer cells resistant to therapy

Lung cancer is the leading cause of cancer mortality worldwide and lung adenocarcinoma is the most common type. Many cases of lung adenocarcinoma are attributed to a mutation in a gene for the epidermal growth factor receptor (EGFR).

9 Dec 2009

TMZ and small molecule combination appears to lower tumor resistance

University of Florida researchers have found a way to use just a fraction of the normal dosage of a highly toxic, debilitating chemotherapy drug to achieve even better results against colon cancer cells.

9 Dec 2009

Social isolation and stress may increase susceptibility to breast cancer, finds US study

Scientists at the University of Chicago found that rats which were prone to developing breast tumours were 3.3 times more likely to develop cancer if they were kept in isolation and suffered related stress.

9 Dec 2009

Transgenomic's SURVEYOR Scan K-RAS mutation detection kit launched

Transgenomic, Inc. announced today the launch of its SURVEYOR Scan K-RAS kit, the first in a family of mutation detection kits the company plans to offer featuring its proprietary SURVEYOR Nuclease and WAVE® HS DHPLC platform. SURVEYOR Scan technology is a novel approach to mutation detection that uses a PCR amplification reaction and hybridization to form heteroduplex DNA molecules in samples with K-RAS mutation.

9 Dec 2009

Spine system: A new technique to treat lower back pain

Using a branch of science that crosses disciplines to study complex problems, a Michigan State University researcher is introducing a new way to understand and treat lower back pain, a condition affecting more than 40 million Americans and costing billions of dollars each year.

9 Dec 2009