Membrane News and Research

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All types of carbon nanotubes penetrate wide variety of cell membranes

Over the past two years, researchers have demonstrated repeatedly that certain types of carbon nanotubes are among the most effective materials known for transporting proteins, genes, and drug molecules across the cell membrane.

20 Feb 2007

New targets in cancer mutation puzzle

University of Rochester scientists, while investigating the two most frequent types of mutations in cancer, discovered a possible new route to treatment that would take advantage of the mutations instead of trying to repair them.

18 Feb 2007

Researchers discover how to fight iron disorders with a drug against hypertension

We all know that iron deficiencies are dangerous, but also too much iron is bad for our health. Our body stores excess iron in various tissues, where it can lead to organ failure and even death if not treated before irreversible damage has occurred.

12 Feb 2007

Cancer breakthrough - first treatment to directly target tumor supply

For the first time, physician-scientists at NewYork-Presbyterian Hospital/Weill Cornell Medical Center in New York City have demonstrated in patients the ability of an antibody to directly target the blood supply of a wide variety of tumors, leaving healthy tissues unharmed.

12 Feb 2007

FDA approves temporary limb salvage shunt

The U.S. Food and Drug Administration (FDA) has cleared for U.S. marketing a vascular shunt, a medical device that can help save the arms and legs of soldiers critically injured in combat as well as individuals in other trauma settings and emergency situations.

11 Feb 2007

Natural molecules to create pseudo-cell factories

Carnegie Mellon University's Philip LeDuc predicts the use of artificially created cells could be a potential new therapeutic approach for treating diseases in an ever-changing world.

7 Feb 2007

Scientists find molecular cause for form of deafness

Scientists exploring the physics of hearing have found an underlying molecular cause for one form of deafness, and a conceptual connection between deafness and the organization of liquid crystals, which are used in flat-panel displays.

5 Feb 2007

Researchers study dosimetry in radiotherapy through Monte Carlo techniques

The mathematical tool, quite used in Medical Physics, takes its name from the city of Montecarlo, well-known for its bingo halls and games of chance.

5 Feb 2007

Bright quantum dots help basic cancer biology studies

Though there is little doubt that nanoscale devices are going to play a critical role in improving cancer detection and treatment over the next five to ten years, nanoparticles are already having a major impact on the way that cancer biologists study the processes that go awry within malignant and metastatic cells.

5 Feb 2007

Giving birth to a child naturally increases risk of hemorrhage in newborns

The first researchers to use magnetic resonance imaging (MRI) to study the brains of a large group of babies soon after birth found a small amount of bleeding in and around the brains of one in four babies who were delivered vaginally.

30 Jan 2007

Probing proteins can lead to better understanding of anti-tumor agents

There are a number of naturally occurring chemicals that are used in phototherapy of skin diseases. Hypocrellin A (HA), which can be extracted from a parasitic fungus, has been taken orally as a folk medicine for several centuries in China.

29 Jan 2007

New type of buckyball

Scientists at Rice University and Baylor College of Medicine have developed a new type of buckyball nanoparticle that acts as a passkey, allowing peptide-based drugs to enter cancer cells.

29 Jan 2007

Gene produces springy protein keeping nerve cells flexible

If you bend a knee or an elbow, the nerves in your limbs stretch but do not break. A University of Utah study suggests why: A gene produces a springy protein that keeps nerve cells flexible. When the gene was disabled in tiny nematode worms, their nerve cells literally broke.

29 Jan 2007

New understanding of cholera pathogen

Researchers at Rensselaer Polytechnic Institute have discovered new details about how bacteria generate energy to live. In two recently published papers, the scientists add key specifics to the molecular mechanism behind the pathogen that causes cholera.

29 Jan 2007

SH2B1 protein plays a key role in controlling body weight, response to insulin and leptin

A single protein in brain cells may act as a linchpin in the body's weight-regulating system, playing a key role in the flurry of signals that govern fat storage, sugar use, energy balance and weight, University of Michigan Medical School researchers report.

29 Jan 2007

Nanoparticles from crab shells show promise for drug delivery

Nanoparticles made of chitosan, a naturally occuring polymer isolated from crab and shrimp shells, have shown promise as carriers of anticancer drugs, antitumor genes, and other novel therapeutic agents.

22 Jan 2007

Dendrimer-based targeted delivery of an apoptotic sensor in cancer cells

Taking a critical step toward the development of a multifunctional nanoscale anticancer agent that can detect cancer, treat it, and then report on the success or failure of that treatment, investigators at the University of Michigan have developed a nanoscale sensor of cell death.

22 Jan 2007

Cetuximab with radiotherapy does not increase side effects for head and neck cancer patients

The addition of Cetuximab (brand name Erbitux) to radiation therapy treatments does not increase the rate or duration of some side effects in the treatment of advanced head and neck cancers, according to a study presented at the plenary session today at the Multidisciplinary Head and Neck Cancer Symposium, co-sponsored by the American Society for Therapeutic Radiology and Oncology, the American Society for Clinical Oncology and the American Head and Neck Society.

18 Jan 2007

Microfluidics gives boost to protein crystallization

Proteins produced by cancer cells are among the common targets for anticancer agents, and thanks to efforts in proteomics and cancer genomics, the number of potential protein targets is increasing exponentially.

16 Jan 2007

New treatment technique for decontaminating flood water

Engineers have developed a system that uses a simple water purification technique that can eliminate 100 percent of the microbes in New Orleans water samples left from Hurricane Katrina. The technique makes use of specialized resins, copper and hydrogen peroxide to purify tainted water.

10 Jan 2007