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Laser-Powered 'Needle' Promises Pain-Free Injections 2012-09-28

By Mi-ae Park

From annual flu shots to childhood immunizations, needle injections are among the least popular staples of medical care. Though various techniques have been developed in hopes of taking the "ouch" out of injections, hypodermic needles are

Lack of Oxygen in Cancer Cells Leads to Growth and Metastasis 2012-09-28

By S. Thomas

It seems as if a tumor deprived of oxygen would shrink. However, numerous studies have shown that tumor hypoxia, in which portions of the tumor have significantly low oxygen concentrations, is in fact linked with more aggressive tumor behavior and p

Parental Divorce Linked to Stroke in Males 2012-09-28

By University of Toronto

Men with divorced parents are significantly more likely to suffer a stroke than men from intact families, shows a new study from the University of Toronto.

Two Studies Could Lead to New Personalized Therapies for Lung Cancer Patients 2012-09-28

By Ramaswamy Govindan

Lung cancer is a leading cause of death worldwide and is associated with very low survival rates. Two new genome-sequencing studies have uncovered novel genes involved in the deadly disease, as well as striking differences in mutations found in pati

Cloned Receptor Paves Way for New Breast and Prostate Cancer Treatment 2012-09-28

By V. Hillerdal

Researchers at Uppsala University have cloned a T-cell receptor that binds to an antigen associated with prostate cancer and breast cancer. T cells that have been genetically equipped with this T-cell receptor have the ability to specifically kill p

Under-Twisted DNA Origami Delivers Cancer Drugs to Tumors 2012-09-28

By Karolinska Institutet

Scientists at Karolinska Institutet in Sweden describe in a new study how so-called DNA origami can enhance the effect of certain cytostatics used in the treatment of cancer. With the aid of modern nanotechnology, scientists can target drugs direct

Tracking Stem Cell Reprogramming: Biologists Reveal Genes Key to Development of Pluripotency, in Single Cells 2012-09-28

By Yosef Buganim

Several years ago, biologists discovered that regular body cells can be reprogrammed into pluripotent stem cells -- cells with the ability to become any other type of cell. Such cells hold great promise for treating many human diseases.

'Siloed' Agencies Hindered in Efforts to Fight Animal-To-Human Diseases, Analysis Finds 2012-09-28

By Colin Jerolmack

The "siloed" structure of U.S. health agencies is hindering efforts to spot and combat animal-to-human afflictions, such as West Nile Virus, New York University sociologist Colin Jerolmack has concluded after conducting an organizational a

In Lung Cancer, Smokers Have 10 Times More Genetic Damage Than Never-Smokers 2012-09-28

By Ramaswamy Govindan

Lung cancer patients with a history of smoking have 10 times more genetic mutations in their tumors than those with the disease who have never smoked, according to a new study from Washington University School of Medicine in St. Louis.

Neural Stem Cells Regenerate Axons in Severe Spinal Cord Injury; Functional Recovery in Rats 2012-09-28

By Paul Lu

In a study at the University of California, San Diego and VA San Diego Healthcare, researchers were able to regenerate "an astonishing degree" of axonal growth at the site of severe spinal cord injury in rats. Their research revealed that

Study Explains Decrease in Insulin-Producing Beta Cells in Diabetes 2012-09-28

By Chutima Talchai

Scientists generally think that reduced insulin production by the pancreas, a hallmark of type 2 diabetes, is due to the death of the organ's beta cells. However, a new study by Columbia University Medical Center (CUMC) researchers shows that beta c

Cell Death Mystery Yields New Suspect for Cancer Drug Development 2012-09-28

By TM Leisner

A mysterious form of cell death, coded in proteins and enzymes, led to a discovery by UNC researchers uncovering a prime suspect for new cancer drug development.

Analysis Estimates Effective PrEP Dosing 2012-09-28

By P.L. Anderson

Several large clinical trials have demonstrated that a daily oral dose of one or two antiretroviral drugs used to treat HIV infection can prevent infection in an approach known as pre-exposure prophylaxis, or PrEP. The level of protection, however,

Good Health Helps Grades When Students Hit Puberty 2012-09-28

By Christopher Forrest

Good health helps children with stressful transitions from elementary school to middle school, finds a new study in the Journal of Adolescent Health. Students with chronic conditions such as asthma, obesity, learning disabilities, attention-deficit

Rising Cost of Inpatient Care Linked to Medical Devices and Supplies 2012-09-28

By Jared Lane Maeda

Inpatient hospital treatment accounts for the largest proportion of health care spending in the U.S., with the use of diagnostic imaging services such as MRIs, frequently implicated as the probable cause. A new analysis finds that the biggest expens

Diagnostic Confidence Key for Prompt Treatment for Women With Heart Symptoms 2012-09-28

By L.C. Welch

Doctors who believe that women have "atypical" coronary heart disease symptoms are less certain when diagnosing heart disease in women. As a result, women are less likely than men to receive treatments for an urgent cardiac event, finds a

Parents Prefer Some, Often Less-Effective Birth Control Methods for Teens 2012-09-28

By Lauren B. Hartman

Parents of teen girls are more ready to accept their daughters being offered birth control pills and condoms during doctor visits than other, more effective and long-acting contraceptive methods, according to a new study in the Journal of Adolescent

Even With Personalized Assessments, Many Underestimate Disease Risks 2012-09-28

By Wang C. et al

People with a family history of certain diseases, including heart disease and diabetes, often underestimate their risk for developing them, even after completing a risk assessment and receiving personalized prevention messages, finds a new study in

Chemist Develops New Synthesis of Most Useful, Yet Expensive, Antimalarial Drug 2012-09-28

By Chunyin Zhu

In 2010 malaria caused an estimated 665,000 deaths, mostly among African children. Now, chemists at Indiana University have developed a new synthesis for the world's most useful antimalarial drug, artemisinin, giving hope that fully synthetic artemi

Poorest of the Poor Miss out On Benefits, Have More Hardship 2012-09-28

By H. Luke Shaefer

Although the federal government's 1996 reform of welfare brought some improvements for the nation's poor, it also may have made extremely poor Americans worse off, new research shows.

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