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HIV Trial to Create New Immune Systems

June 18, 2013 10:05 am | by Cynthia Fox | Articles | Comments

People living with HIV will be treated with genetically engineered stem cells next month by the team of Nobel Prize-winning immunologist David Baltimore, PhD, Robert Andrews Millikan Professor of Biology, California Institute of Technology. The goal: to create, in patients, new immune systems resistant to HIV.

Multi-Parametric Electrophysiological Imaging of the Mammalian Heart in vivo

June 6, 2013 11:05 am | by James Joubert, application scientist, Photometrics | Articles | Comments

Cardiac arrhythmia is one of the most common diseases encountered in clinical cardiology. High-...

FDA-approved Stem Cell Trial Dramatically Slows ALS

May 30, 2013 1:34 pm | by Cynthia Fox | Articles | Comments

For two years, stem cells slowed the progression of Lou Gehrig’s disease, a condition with a two...

Platelet Rich Plasma Significantly Improves Clinical Outcomes in Patients with Tennis Elbow

March 21, 2013 11:58 am | News | Comments

Platelet rich plasma (PRP) therapy has been used to manage pain associated with torn tendons,...

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Life Science Pulse

Smoking, Osteoporosis Link Explained

June 19, 2013 11:34 am | News | Comments

Human bone breaks down and regenerates naturally all the time, in a perfectly balanced dance that maintains skeletal integrity. As people age, bone tends to deteriorate faster, causing osteoporosis and other disorders. Smoking artificially accelerates bone degeneration as well. For the first time, researchers have described the mechanics of how certain toxic compounds in smoke break down bone.

Aspirin Fights Cancer by Slowing DNA Damage

June 19, 2013 11:00 am | News | Comments

Aspirin is known to lower risk for some cancers, and a new study points to a possible explanation, with the discovery that aspirin slows the accumulation of DNA mutations in abnormal cells in at least one pre-cancerous condition. In the study, researchers analyzed biopsy samples from 13 patients with a pre-cancerous condition called Barrett’s esophagus who were tracked for six to 19 years.

Fungus Joins New Species List

June 19, 2013 10:24 am | News | Comments

A new species of fungus that causes life-threatening infections in humans and cats has been discovered. After six years of investigation, researchers have confirmed this as a completely new species, Aspergillus felis, which can cause virulent disease in humans and cats by infecting their respiratory tract.

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Next-gen Sequencing Leads to New Virus Detection

June 18, 2013 11:37 am | News | Comments

In new research researchers describe a technology that can detect new, previously unknown viruses. The technique uses blood serum as a biological source to categorize and discover viruses. Taking advantage of the complete deciphering of the human genome, researchers used a next-generation sequencing (NGS) approach called transcriptome subtraction to identify viral genetic material in the blood.

Drawing Pad Monitors Learning-disabled Brains

June 18, 2013 10:58 am | News | Comments

For less than $100, University of Washington researchers have designed a computer-interfaced drawing pad that helps scientists see inside the brains of children with learning disabilities while they read and write. To create the system, researchers hollowed out a ballpoint pen and inserted two optical fibers that connect to a light-tight box in an adjacent control room where the pen’s movement is recorded.

'Chase and Run' Mechanism Explains Cancer Metastasis

June 18, 2013 10:35 am | News | Comments

A mechanism that cells use to group together and move around the body– called "chase and run"- has been described for the first time by scientists. The new study focuses on the process that occurs when cancer cells interact with healthy cells in order to migrate around the body during metastasis.

Sweetener a Possible Parkinson's Therapy

June 18, 2013 10:18 am | News | Comments

Mannitol, a sugar alcohol produced by fungi, bacteria, and algae and a common component of sugar-free gum and candy,is also used in the medical field. Now, researchers have found that mannitol also prevents clumps of the protein α-synuclein from forming in the brain— a process that is characteristic of Parkinson's disease.

Alzheimer's Drug Restores Lost Brain Connections

June 18, 2013 10:02 am | News | Comments

The first experimental drug to boost brain synapses lost in Alzheimer’s disease has been developed by researchers. The drug, called NitroMemantine, combines two FDA-approved medicines to stop the destructive cascade of changes in the brain that destroys the connections between neurons, leading to memory loss and cognitive decline.

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Researchers Tackle MERS with SARS Approach

June 18, 2013 9:46 am | News | Comments

A pair of researchers who in the past created compounds to block the SARS virus are now tackling the new Middle East respiratory syndrome coronavirus, or MERS-CoV. The team's successful work on SARS paved the way for them to swiftly work on MERS CoV, reducing parts of the process that would normally take years to a matter of month.

Melanoma Tumors 'Eradicated' in Mice

June 17, 2013 11:10 am | News | Comments

Researchers eradicated most melanoma tumors by exposing them to a fast-acting virus, according to a report in the Journal of Virology. Melanoma is the deadliest type of skin cancer and can spread throughout the body and even into the brain.

Technique Clears Major Diabetes Transplant Hurdle

June 17, 2013 11:04 am | News | Comments

Researchers have identified a way to trigger reproduction in the laboratory of clusters of human cells that make insulin, potentially removing a significant obstacle to transplanting the cells as a treatment for patients with type 1 diabetes. 

Printing Artificial Bone

June 17, 2013 10:51 am | News | Comments

Researchers working to design new materials that are durable, lightweight and environmentally sustainable are increasingly looking to natural composites for inspiration. While they have come up with hierarchical structures in the design of new materials, going from a computer model to the production of physical artifacts has been a challenge. Now, researchers have developed an approach that allows them to turn their designs into reality.

Toxin Testing Helps Treat Spine Injuries, MS Symptoms

June 17, 2013 10:28 am | News | Comments

A medical test previously developed to measure a toxin found in tobacco smokers has been adapted to measure the same toxin in people suffering from spinal cord injuries and multiple sclerosis, offering a potential tool to reduce symptoms.

Lab-grown Organs Can Solve Shortage Dilemma

June 17, 2013 3:32 am | by MALCOLM RITTER - AP Science Writer - Associated Press | News | Comments

By the time 10-year-old Sarah Murnaghan finally got a lung transplant last week, she'd been waiting for months, and her parents had sued to give her a better shot at surgery. Her cystic fibrosis was threatening her life, and her case spurred a debate on how to allocate donor organs. Lungs and other organs for transplant are scarce.

Blood-forming Stem Cells Produced in Lab

June 14, 2013 9:51 am | News | Comments

By transferring four genes into mouse fibroblast cells, researchers have produced cells that resemble hematopoietic stem cells, which produce millions of new blood cells in the human body every day. These findings provide a platform for future development of patient-specific stem/progenitor cells, and more differentiated blood products, for cell-replacement therapy.

Competing Sensory Cells Control Salt Preference

June 14, 2013 9:47 am | News | Comments

Researchers report that in fruit flies, at least, that the process of how our tongues and brains can tell when the saltiness of our food has crossed the line from yummy to yucky is controlled by competing input from two different types of taste-sensing cells.

Developmental Protein Regulates Cancer Spread

June 14, 2013 9:43 am | News | Comments

A protein used by embryo cells during early development, and recently found in many different types of cancer, apparently serves as a switch regulating the spread of cancer, known as metastasis, new research reports. Metastasis is responsible for 90 percent of cancer-related deaths.

Nervous System Plays Role in Arthritis

June 14, 2013 8:54 am | News | Comments

Arthritis is a debilitating disorder affecting one in 10 Canadians, with pain caused by inflammation and damage to joints. Yet the condition is poorly managed in most patients, since adequate treatments are lacking. A new study adds to a growing body of evidence that the nervous system and nerve-growth factor (NGF) play a major role in arthritis.

Genetic Mutations Crucial to Evolution

June 14, 2013 8:49 am | News | Comments

A new study offers further proof that the divergence of humans from chimpanzees some 4 million to 6 million years ago was profoundly influenced by mutations to DNA sequences that play roles in turning genes on and off. The study provides evidence for a 40-year-old hypothesis that regulation of genes must play an important role in evolution.

Court Ruling May Open Up Gene Testing Market

June 13, 2013 3:11 pm | by MARILYNN MARCHIONE - AP Chief Medical Writer - Associated Press | News | Comments

A ruling by the Supreme Court that human genes can't be patented is expected to increase access and drop the cost for tests for gene mutations that greatly raise the risk of developing breast or ovarian cancer. In a bit of a mixed message, the court unanimously decided that certain types of gene tests may still be protected by patents, yet it struck down patents that a company has long held for BRCA genes.

US Court Rules Against Gene Patents

June 13, 2013 11:08 am | by BY JESSE J. HOLLAND - ASSOCIATED PRESS WRITER | News | Comments

The Supreme Court ruled today that companies cannot patent parts of naturally-occurring human genes, a decision with the potential to profoundly affect the emerging and lucrative medical and biotechnology industries. The high court's unanimous judgment reverses three decades of patent awards by government officials.

Fingernails Reveal Clues to Limb Regeneration

June 13, 2013 10:37 am | News | Comments

In humans, an amputated fingertip can sprout back in as little as two months, a phenomenon that has remained poorly understood until now. Researchers have shed light on this rare regenerative power in mammals, using genetically engineered mice to document for the first time the biochemical chain of events that unfolds in the wake of a fingertip amputation.

Proteins in Saliva Protect Against Flu

June 13, 2013 10:16 am | News | Comments

Spit. Drool. Dribble. Saliva is not normally a topic of polite conversation, but it may be the key to explaining the age and sex bias exhibited by influenza and other diseases, according to a new study. The research provides new insights into why older people were better able to fight off the new strains of “bird” flu and “swine” flu than younger people.

Brain Scans Can Predict Depression Treatment

June 13, 2013 10:09 am | News | Comments

In a new clinical trial, researchers have discovered that specific patterns of brain activity may indicate whether a depressed patient will or will not respond to treatment with medication or psychotherapy. The choice of medication versus psychotherapy is often based on the preference of the patient or clinician, rather than objective factors.

Mass Spec Technique Maps Metabolites

June 13, 2013 9:49 am | News | Comments

A team of researchers has developed a mass spectrometry imaging technique that not only maps the whereabouts of individual metabolites in a biological sample, but how new the metabolites are too. That’s a big milestone, because metabolites are constantly in flux.

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