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Nano-sized particles enable researchers to visualize a tumor using only infrared light

Nano-sized particles embedded with bright, light-emitting molecules have enabled researchers to visualize a tumor more than one centimeter below the skin surface using only infrared light.

7 Feb 2005

New understanding of the causes for symptoms of sickle cell disease

A new understanding of the causes for symptoms of sickle cell disease, a condition affecting one in every 600 African-Americans, has resulted from a study by researchers at Duke University Medical Center and Howard Hughes Medical Institute (HHMI). Their findings may lead to a new, more direct method for treating the disease, they said.

31 Jan 2005

Gene dynamin 2 underlies one form of Charcot-Marie-Tooth disease

A gene that plays many fundamental roles in cells throughout the body has, for the first time, been implicated in human disease, according to researchers at the Duke Center for Human Genetics.

31 Jan 2005

New methods of gene delivery using lasers

Leading laser scientists at the University of St Andrews have developed a new method of delivering genes to cells using laser light. The new technique, which is cheap and powerful, could have important implications for future studies in biomedicine and healthcare.

26 Jan 2005

New ideas for creating a new generation of oral medications to treat infertility

Researchers now have a much better picture of how follicle-stimulating hormone (FSH), one of the most frequently used fertility drugs, works, and with it new ideas for creating a new generation of oral medications to treat infertility.

20 Jan 2005

Tobacco smoke triggers the production of COX-2

Tobacco smoke triggers the production of COX-2, a cellular protein linked to the development and progression of cancer, according to research published in the January 15 issue of the journal Cancer Research.

16 Jan 2005

Discovery offers promise for treatment of age-related hearing loss

Researchers have discovered that deletion of a specific gene permits the proliferation of new hair cells in the cochlea of the inner ear -- a finding that offers promise for treatment of age-related hearing loss. This type of hearing loss is caused by aging, disease, certain drugs, and the cacophony of modern life. It is the most common cause of hearing loss in older people.

13 Jan 2005

Study identifies potentially valuable applications for new drug Nifrolidine

Along with aiding efforts to study addicted smokers, a new drug that attaches only to areas of the brain that have been implicated in nicotine addiction may help studies of people battling other disorders such as Alzheimer’s disease and schizophrenia.

12 Jan 2005

Promising new evidence for the optimal use of biologic therapies for rheumatoid arthritis

A major cause of pain and disability, rheumatoid arthritis (RA) is also potentially the most treatable form of chronic arthritis. Researchers, doctors, and patients agree that a group of drugs called disease-modifying antirheumatic drugs (DMARDs) can effectively reduce joint pain and stiffness.

7 Jan 2005

Protein discovery with medical implications

It was a transforming moment. Researchers could barely believe their eyes. A molecular blob of a protein reshaped itself into a molecular Pacman in order to free new viruses from the inside of a bacterial cell.

6 Jan 2005

Novel approach to bioengineer artificial skin for burn victims

Each year more than 45,000 Americans suffer burns serious enough to require a hospital stay, according to the American Burn Association. While the traditional therapy of using skin grafts to cover burn sites has improved, a number of problems including scarring, infection and poor adhesion remain.

4 Jan 2005

Ubiquitination protects against improper Notch signaling

The Notch pathway is an important molecular signaling mechanism whose existence has been known, or at least hinted at, for nearly a century since the identification of a mutant strain of Drosophila fruit flies with "notched" wings in Thomas Hunt Morgan's lab in 1910.

28 Dec 2004

Key molecular signal allows malarial parasites to target human red blood cells

Northwestern University researchers have identified a key molecular "signal" that allows malarial parasites to release virulence proteins inside human red blood cells.

13 Dec 2004

Trimming fat overcomes one of the major obstacles to drug design

Biochemists at Ohio State University and their colleagues have overcome one of the major obstacles to drug design, by trimming some of the fat from a molecular sponge that scientists use to study proteins.

8 Dec 2004

Study looks at muscle repair and resilience

Healthy military personnel and muscular dystrophy patients are at opposite ends of the spectrum when is comes to muscle strength and resilience. However, a new University of Iowa study may provide insights that improve muscle health for both these groups.

7 Dec 2004

New advances in sickle cell disease

Excruciating pain episodes, recurrent pneumonias, strokes, severe infections, chronic hemolytic anemia, and secondary pulmonary hypertension are common complications of sickle cell disease, a life-threatening inherited defect in blood that causes normally disc-shaped red blood cells to take on a sickle shape.

6 Dec 2004

Genetic target found for pediatric leukemia

A molecular target newly discovered by scientists at two prestigious research institutes may pave the way for new treatments that could combat an aggressive form of leukemia, according to a study to be presented today during the 46th Annual Meeting of the American Society of Hematology (ASH).

5 Dec 2004

Autophagy is also cell's second line of defense against invading pathogens such as strep

Cells give up their secrets slowly. Just when you think that all major cellular systems are understood, along comes a surprise. The latest is about autophagy, a major pathway for degrading and recycling within cells.

4 Dec 2004

A gallery of highly-specific, gene and protein “mug shots” of cancer types would be a powerful for oncologists

Doctors would like to diagnose malignancies rapidly by matching them with highly-specific genetic “mug shots” based on the presence of characteristic mRNAs or proteins. This kind of specificity would facilitate screening and early detection, and would potentially allow targeted treatments specific to each type of cancer

4 Dec 2004

Method for healing spinal injuries in dogs offers hope for preventing human paralysis

Lab tests have shown that an injection of a liquid polymer known as polyethylene glycol (PEG), if administered within 72 hours of serious spinal injury, can prevent most dogs from suffering permanent spinal damage.

3 Dec 2004