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Baby Hearts Need Rhythm to Develop Correctly

February 19, 2014 1:08 pm Videos Comments

A team reports that they have taken an important step toward the goal of  growing replacement heart valves from a patient’s own cells by determining that the mechanical forces generated by the rhythmic expansion and contraction of cardiac muscle cells play an active role in the initial stage of heart valve formation.

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Method for Delivering HIV-Fighting Antibodies Proven Even More Promising

February 11, 2014 11:55 am Videos Comments

In 2011, biologists at Caltech demonstrated a highly effective method for delivering HIV-fighting antibodies to mice—a treatment that protected the mice from infection by a laboratory strain of HIV delivered intravenously. Now the researchers, led by Nobel Laureate David Baltimore, have shown that the same procedure is just as effective against a strain of HIV found in the real world, even when transmitted across mucosal surfaces.

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Durable End to AIDS Will Require HIV Vaccine Development

February 6, 2014 12:58 pm Videos Comments

Broader global access to lifesaving antiretroviral therapies and wider implementation of proven HIV prevention strategies could potentially control and perhaps end the HIV/AIDS pandemic. However, a safe and at least moderately effective HIV vaccine is needed to reach this goal more expeditiously and in a more sustainable way, according to a new commentary from Anthony S. Fauci, MD, director of the NIAID.

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Study Finds Dramatic Rise in Skin Cancer among Middle-Aged Adults

February 5, 2014 7:16 am Videos Comments

A new Mayo Clinic study found that among middle-aged men and women, 40 to 60 years old, the overall incidence of skin cancer increased nearly eightfold between 1970 and 2009. There has been widespread concern in recent years about the rising incidence of melanoma, which affects 75,000 Americans annually and results in nearly 9,000 deaths. Few studies, however, have investigated which age brackets of adults are most at risk.

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NIH Study Offers Insight into Why Cancer Incidence Increases with Age

February 4, 2014 1:30 pm Videos Comments

The accumulation of age-associated changes in a biochemical process that helps control genes may be responsible for some of the increased risk of cancer seen in older people, according to a National Institutes of Health and National Institute of Environmental Health Sciences study.

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Liver Tumors Found in Mice Exposed to BPA

February 3, 2014 11:08 am Videos Comments

In one of the first studies to show a significant association between BPA and cancer development, University of Michigan School of Public Health researchers have found liver tumors in mice exposed to the chemical via their mothers during gestation and nursing.

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Obesity-Induced Fatty Liver Disease Reversed In Mice

February 3, 2014 10:57 am Videos Comments

Johns Hopkins researchers have discovered that valproic acid, a widely prescribed drug for treating epilepsy, has the additional benefits of reducing fat accumulation in the liver and lowering blood sugar levels in the blood of obese mice.

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Cell Cycle Speed is Key to Making Aging Cells Young Again

January 30, 2014 1:46 pm Videos Comments

A fundamental axiom of biology used to be that cell fate is a one-way street—once a cell commits to becoming muscle, skin, or blood it always remains muscle, skin, or blood cell. That belief was upended in the past decade when a Japanese scientist introduced four simple factors into skin cells and returned them to an embryonic-like state, capable of becoming of almost any cell type in the body.

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Scientists Reveal Cause of One of the Most Devastating Pandemics in Human History

January 28, 2014 2:08 pm Videos Comments

An international team of scientists has discovered that two of the world’s most devastating plagues – the plague of Justinian and the Black Death, each responsible for killing as many as half the people in Europe—were caused by distinct strains of the same pathogen, one that faded out on its own, the other leading to worldwide spread and re-emergence in the late 1800s.

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3-D Cell Imaging Technique Requires No Dye

January 23, 2014 12:51 pm Videos Comments

Living cells are ready for their close-ups, thanks to a new imaging technique that needs no dyes or other chemicals, yet renders high-resolution, three-dimensional, quantitative imagery of cells and their internal structures.       

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Benefits of Cognitive Training Can Last 10 Years in Older Adults

January 14, 2014 11:35 am Videos Comments

Exercises meant to boost mental sharpness can benefit older adults as many as 10 years after they received the cognitive training, researchers said. A multi-institutional team of researchers reported that older adults who had participated in the mental exercise programs reported less difficulty with everyday tasks of living than were those who had not participated, even after 10 years had passed.

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Caffeine Has Positive Effect on Memory

January 13, 2014 11:43 am Videos Comments

Whether it's a mug full of fresh-brewed coffee, a cup of hot tea, or a can of soda, consuming caffeine is the energy boost of choice for millions who want to wake up or stay up. Now, researchers at Johns Hopkins University have found another use for the popular stimulant: memory enhancer.

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Complementary Medicine in Wide Use to Treat Children with Autism, Developmental Delay

January 13, 2014 11:14 am Videos Comments

In a study of the range of treatments being employed for young children with autism and other developmental delays, UC Davis MIND Institute researchers have found that families often use complementary and alternative medicine (CAM) treatments and that the most frequent users of both conventional and complementary approaches are those with higher levels of parental education and income.

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Key Survival Protein Found in Many Cancers

January 8, 2014 1:00 pm Videos Comments

Researchers have discovered a promising strategy for treating cancers that are caused by one of the most common cancer-causing changes in cells.                               

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New Targets Found for Huntington’s, Parkinson’s

January 8, 2014 12:11 pm Videos Comments

Researchers have discovered a possible new target for treating movement disorders such as Huntington’s disease and Parkinson’s disease.                                 

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