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Toxin-nanoparticle combo inhibits brain cancer invasion while imaging tumors

Working with a nanoparticle designed to target and image glioblastoma, a form of brain cancer, investigators at the University of Washington in Seattle have found that these same nanoparticles inhibit tumor cell invasion, one of the key events that leads to the metastatic spread of cancer. The investigators have also determined how the nanoparticles exert this potentially beneficial effect.

18 Jan 2009

Biodegradable nanoprobe images new blood vessel growth

Angiogenesis, the growth of new blood vessels, plays a critical role in several chronic human diseases, including metastatic cancer. In fact, several new anticancer therapies are designed to starve tumors by shutting down angiogenesis, but the lack of a good assay for quantifying angiogenesis in the body has hampered the development of effective antiangiogenesis therapies.

18 Jan 2009

Discovery of protein that amplifies cell death

Scientists at Albert Einstein College of Medicine of Yeshiva University have identified a small intracellular protein that helps cells commit suicide.

15 Jan 2009

Discovery of protein that amplifies cell death

Scientists at Albert Einstein College of Medicine of Yeshiva University have identified a small intracellular protein that helps cells commit suicide.

15 Jan 2009

Discovery of mechanism for dental pain

Researchers at Oregon Health & Science University's School of Dentistry have discovered a novel function of the peptide known as Nerve Growth Factor (NGF) in the development of the trigeminal nerve.

8 Jan 2009

Novel low-cost immunotherapy for cancer cells

Molecules of sugar sitting on the surface of cancer cells are keys to the development of a new vaccine aimed at both treating and stopping the spread of certain types of cancers called carcinomas, which include prostate, breast, ovarian and lung, among others.

8 Jan 2009

First artemisinin based malaria drug may meet resistance, expert says

This year, the U.S. Food and Drug Administration is expected to approve the first malaria drug to contain artemisinin, a wormwood derivative from China that has proven effective for malaria in Africa and Asia.

8 Jan 2009

Discovery of more efficient way to create induced Pluripotent Stem (iPS) cells

A Boston University School of Medicine-led research team has discovered a more efficient way to create induced Pluripotent Stem (iPS) cells, derived from mouse fibroblasts, by using a single virus vector instead of multiple viruses in the reprogramming process.

7 Jan 2009

Culprit found in rare type of baldness

Scientists in Beijing say they have discovered a genetic cause for a certain type of premature baldness and they suggest their discovery offers hope in future that those who inherit this rare type of baldness will eventually be able to keep their hair.

5 Jan 2009

Long-term gene therapy used to reverse heart damage in heart failure

Long-term gene therapy resulted in improved cardiac function and reversed deterioration of the heart in rats with heart failure, according to a recent study conducted by researchers at Thomas Jefferson University's Center for Translational Medicine.

30 Dec 2008

Targeted nanoparticles deliver therapeutic DNA to cancer cells

Given that cancer is a disease caused by gene mutations, cancer researchers have been striving to develop gene therapies aimed at correcting these mutations. However, these efforts have been hobbled by the difficulty in safely and efficiently delivering anticancer genes to tumors. Nanoparticles, however, may solve these delivery issues, and two recently published studies, using two different types of nanoparticles, lend credence to that hypothesis.

29 Dec 2008

Key survival circuit discovered in Salmonella bacteria

Hundreds of trillions of bacteria make their home in the vertebrate gut. Though many of these microbes perform helpful duties for their host, others - the pathogens - are unwelcome visitors, causing disease.

17 Dec 2008

Researchers simplify creation induced pluripotent stem (iPS) cells

Bryce Carey, an MIT graduate student working in the lab of Whitehead Member Rudolf Jaenisch, spearheaded the effort by joining in tandem the four reprogramming genes through the use of bits of DNA that code for polymers known as 2A peptides. Working with others in the lab, he then manufactured a so-called polycistronic virus capable of expressing all four reprogramming genes once it is inserted into the genomes of mature mouse and human cells.

15 Dec 2008

Overactive brain enzyme may play role in preventing weight gain and obesity

Researchers at Albert Einstein College of Medicine of Yeshiva University have found that overactivity of a brain enzyme may play a role in preventing weight gain and obesity.

14 Dec 2008

Timothy syndrome provides clues about enzyme role in arrhythmias

A University of Iowa study provides insight into a calcium-sensing enzyme already known to play a role in irregular heartbeats and other critical functions.

12 Dec 2008

Exercise suppresses appetite by affecting appetite hormones

A vigorous 60-minute workout on a treadmill affects the release of two key appetite hormones, ghrelin and peptide YY, while 90 minutes of weight lifting affects the level of only ghrelin, according to a new study.

12 Dec 2008

Researchers create tiny, implantable device that captures and kills cancer cells in the bloodstream

In a new tactic in the fight against cancer, Cornell University researcher Michael King has developed what he calls a lethal "lint brush" for the blood -- a tiny, implantable device that captures and kills cancer cells in the bloodstream before they spread through the body.

12 Dec 2008

AEterna Zentari completes recruitment for phase 3 trial with Cetrorelix in benign prostatic hyperplasia

AEterna Zentaris Inc. has reported it has reached its goal of recruiting 500 patients for the safety study of the Phase 3 program in benign prostatic hyperplasia (BPH) with its flagship product candidate, cetrorelix, a novel investigational luteinizing hormone-releasing hormone (LHRH) antagonist.

11 Dec 2008

Computation and genomics data drive bacterial research into new golden age

A potent combination of powerful new analysis methods and abundant data from genomics projects is carrying microbiology forward into a new era.

10 Dec 2008

Levels of insulin-related proteins indicate risk of death in some colorectal cancer patients

A pair of proteins may help explain why people with surgically removed colorectal cancer and who are overweight, physically inactive, and follow a Western-pattern diet may have an increased risk of dying of the disease or other causes, Dana-Farber Cancer Institute scientists report in a new study.

8 Dec 2008