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Scientists develop laser activated carbon nanoparticles for drug, gene delivery

Using chemical "nanoblasts" that punch tiny holes in the protective membranes of cells, researchers have demonstrated a new technique for getting therapeutic small molecules, proteins and DNA directly into living cells.Carbon nanoparticles activated by bursts of laser light trigger the tiny blasts, which open holes in cell membranes just long enough to admit therapeutic agents contained in the surrounding fluid. By adjusting laser exposure, the researchers administered a small-molecule marker compound to 90 percent of targeted cells - while keeping more than 90 percent of the cells alive.

28 Jul 2010

Analyzing PSA level not sufficient for treatment decisions: Report

A new report published in the July 26 issue of Archives of Internal Medicine claims many men who are diagnosed with prostate cancer undergo aggressive therapy, even when they have low PSA scores and low-risk disease, saying "these results underscore the fact that PSA level, the current biomarker, is not a sufficient basis for treatment decisions."

28 Jul 2010

Calcium transfer impacts fuel mechanism for normal cell metabolism

University of Pennsylvania School of Medicine researchers have described a previously unknown biological mechanism in cells that prevents them from cannibalizing themselves for fuel. The mechanism involves the fuel used by cells under normal conditions and relies on an ongoing transfer of calcium between two cell components via an ion channel. Without this transfer, cells start consuming themselves as a way of to get enough energy.

28 Jul 2010

Antigenics announces positive results of AG-707 genital herpes vaccine

Antigenics announced positive results with AG-707, an investigational therapeutic vaccine being developed to treat herpes simplex virus-2,the virus that causes genital herpes, in infected patients. Developed by Antigenics, the vaccine triggers a cellular immune response, stimulating both CD4+ and CD8+ T cells.

28 Jul 2010

Scientists unveil new biomarkers for stroke, coronary heart disease

Analysis of blood protein data from the Women's Health Initiative cohorts has revealed new biomarkers for stroke and coronary heart disease (CHD). Research published in BioMed Central's open access journal Genome Medicine found that beta-2 microglobulin (B2M) levels were significantly elevated in postmenopausal women with CHD, and insulin-like growth factor binding protein 4 (IGFBP4) was strongly associated with stroke.

28 Jul 2010

Research on method to open blood-brain barrier for safe cancer drug delivery

One of the human body's most powerful defensive tools, the blood-brain barrier is a chemical labyrinth that prevents toxins and viruses in the bloodstream from reaching the brain. This foolproof security system, however, limits the ability of physicians to deliver drugs directly to the brain, making it difficult to treat brain tumors. Researchers at Rensselaer Polytechnic Institute are endeavoring to solve this problem by investigating new methods for bypassing the blood-brain barrier and combating the spread of brain cancer.

28 Jul 2010

Scientists develop novel chemotherapeutic method for anticancer drug delivery

Combining nature and Greek mythology, researchers at the Technion-Israel Institute of Technology have developed a tiny "Trojan Horse" system for delivering cancer-fighting drugs. With this system, the drugs are delivered only once they are inside the cancerous cells, so there is no damage to the healthy cells in the surrounding area.

28 Jul 2010

Attaching transferrin to nanoparticle surface can kill cancer cells

A normally benign protein found in the human body appears to be able - when paired with nanoparticles - to zero in on and kill certain cancer cells, without having to also load those particles with chemotherapy drugs.The finding could lead to a new strategy for targeted cancer therapies, according to the University of North Carolina at Chapel Hill scientists who made the discovery.

28 Jul 2010

Sysmex America to debut expanded cell image analysis portfolio at AACC Annual Conference

Sysmex America, Inc., a leading medical diagnostic instrument manufacturer and information systems developer, today announced plans to debut its expanded cell image analysis portfolio during this year's American Association of Clinical Chemistry's (AACC) Annual Conference and Clinical Lab Expo July 25 - 29 in Anaheim, California.

From Sysmex America, Inc. 27 Jul 2010

New partnership brings latest stem cell discoveries from laboratory to patient

A major research company affiliated with the University of Colorado with expertise in managing clinical trials is partnering with the University of Colorado's Anschutz Medical Campus to more efficiently bring the latest stem cell discoveries from the laboratory to the patient.

27 Jul 2010

Dopamine-releasing cells essential for detected odor to be associated with negative experience: Study

It is common sense that it's worth learning what things and situations are harmful to us if we want to have a long and healthy life. For example, after getting a nasty sunburn, we learn our lesson, and apply sun cream before going sunbathing next time. The importance of such learned avoidance strategies is reflected by the fact that even fruit flies possess them.

27 Jul 2010

Neurodegenerative disease-causing infectious protein can erupt from healthy brain tissue: Study

In a startling new study that involved research on both sides of the Atlantic, scientists from The Scripps Research Institute in Florida and the University College London Institute of Neurology in England have shown for the first time that abnormal prions, bits of infectious protein devoid of DNA or RNA that can cause fatal neurodegenerative disease, can suddenly erupt from healthy brain tissue.

27 Jul 2010

Compound Management & Integrity conference to address challenges in improvement methodologies

An efficient and versatile compound management operation is essential for the success of all downstream processes in high throughput screening (HTS) and small molecule development. The 6th Compound Management & Integrity conference taking place September 20 - 22, 2010 will address issues concerned with improving both strategic and tactical aspects of compound management.

27 Jul 2010

Perspectives in General Physiology series introduces new technologies in the field of calcium signaling

The latest Perspectives in General Physiology series introduces the newest technologies in the field of calcium signaling, which plays a central role in many cellular processes. The Perspectives appear in the August issue of the Journal of General Physiology.

27 Jul 2010

Scientists discover mechanism behind flushing reaction caused by nicotinic acid treatment

Cholesterol influences the health of our hearts and blood vessels. Conventional treatment attempts to reduce the level of "bad" cholesterol, LDL cholesterol, in the blood plasma. The opposite approach, which involves increasing the concentration of "good" HDL cholesterol using nicotinic acid, has proven unpopular among patients up to now. The reason for this is that treatment with nicotinic acid has an unpleasant but harmless side-effect: the drug makes patients turn quite red in the face. Scientists at the Max Planck Institute for Heart and Lung Research in Bad Nauheim have now discovered the mechanism behind this effect, which is known as flushing. This will enable the development of flush inhibitors and thereby the more effective prevention of cardiovascular diseases.

27 Jul 2010

Circle Biologics introduces single device Autologous Platelet Concentrator Platform

Circle Biologics, Inc. has announced a technological break-through in regenerative medicine – its Autologous Platelet Concentrator Platform. This innovative single device platform is the first of its kind to incorporate both autologous cell concentration and protein concentration in one point-of-care device.

27 Jul 2010

Advanced Life Sciences enters agreement with UBC to develop antimicrobial peptides

Advanced Life Sciences Holdings, Inc., a biopharmaceutical company engaged in the discovery, development and commercialization of novel drugs in the therapeutic areas of infection, oncology and respiratory diseases, today announced that the Company has entered into a sponsored research and option agreement with The University of British Columbia (UBC) to develop several antimicrobial peptides.

27 Jul 2010

Researchers collect venom from Antarctic octopus

Australian and international researchers have collected venom from octopuses in Antarctica for the first time, significantly advancing our understanding of the properties of venom as a potential resource for drug-development.

27 Jul 2010

Scientists develop carbon based nanoscale to detect single DNA molecules

Researchers at the University of Pennsylvania have developed a new, carbon-based nanoscale platform to electrically detect single DNA molecules.Using electric fields, the tiny DNA strands are pushed through nanoscale-sized, atomically thin pores in a graphene nanopore platform that ultimately may be important for fast electronic sequencing of the four chemical bases of DNA based on their unique electrical signature.The pores, burned into graphene membranes using electron beam technology, provide Penn physicists with electronic measurements of the translocation of DNA.

27 Jul 2010

PIK3CA, KRAS mutations in tumor can predict patients’ response to treatment: Research

Drugs such as everolimus that target the protein mTOR are used to treat several forms of cancer, but not all patients respond to the treatment. A team of researchers, led by Alberto Bardelli, at the University of Turin Medical School, Italy, has now identified a way to help predict which patients will respond to such drugs.

27 Jul 2010

Medical Science News

Scientists develop laser activated carbon nanoparticles for drug, gene delivery

Analyzing PSA level not sufficient for treatment decisions: Report

Calcium transfer impacts fuel mechanism for normal cell metabolism

Antigenics announces positive results of AG-707 genital herpes vaccine

Scientists unveil new biomarkers for stroke, coronary heart disease

Research on method to open blood-brain barrier for safe cancer drug delivery

Scientists develop novel chemotherapeutic method for anticancer drug delivery

Attaching transferrin to nanoparticle surface can kill cancer cells

Sysmex America to debut expanded cell image analysis portfolio at AACC Annual Conference

New partnership brings latest stem cell discoveries from laboratory to patient

Dopamine-releasing cells essential for detected odor to be associated with negative experience: Study

Neurodegenerative disease-causing infectious protein can erupt from healthy brain tissue: Study

Compound Management & Integrity conference to address challenges in improvement methodologies

Perspectives in General Physiology series introduces new technologies in the field of calcium signaling

Scientists discover mechanism behind flushing reaction caused by nicotinic acid treatment

Circle Biologics introduces single device Autologous Platelet Concentrator Platform

Advanced Life Sciences enters agreement with UBC to develop antimicrobial peptides

Researchers collect venom from Antarctic octopus

Scientists develop carbon based nanoscale to detect single DNA molecules

PIK3CA, KRAS mutations in tumor can predict patients’ response to treatment: Research

How microRNA is transforming science: From discovery to diagnostics

Advancing benzodiazepine detection

The Surgeon-Scientist Pioneering Regenerative Engineering

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