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New study finds a reason for ethnic disparity in CF diagnoses

Cystic fibrosis (CF) occurs less frequently in nonwhites than in whites, and nonwhites tend to be diagnosed at a later age. This late diagnosis often comes only once they have become symptomatic, rather than through newborn screening programs or molecular diagnostic testing.

16 Dec 2015

Study paves way for development of novel cancer therapeutics

A team of scientists, comprising researchers from the Institute of Molecular and Cell Biology, a research institute under the Agency for Science, Technology and Research, Singapore, and the VIB Laboratory of Molecular Cancer Biology, has revealed the mechanism by which tumor cells elevate levels of MDM4, a protein that is highly expressed in cancer cells but not in normal adult tissues.

16 Dec 2015

High testosterone levels in women may increase uterine fibroid risk

Women who have high levels of both testosterone and estrogen in midlife may face a greater risk of developing benign tumors on the uterus called uterine fibroids than women with low levels of the hormones, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

16 Dec 2015

Study points to future treatment for post-stroke damage

A study of rats released today shows that blocking a type of RNA produced by what used to be called "junk DNA" can prevent a significant portion of the neural destruction that follows a stroke. The research points toward a future treatment for post-stroke damage, which is often more extensive than the initial destruction that results when blood to the brain is temporarily shut off.

16 Dec 2015

Carbohydrates boost endurance sports performance

Carbohydrates are the body's main energy source during high-intensity, prolonged running, a new study published in Journal of Applied Physiology reports.

16 Dec 2015

Brain regions cause PTSD patients to generalize non-threatening events

Regions of the brain function differently among people with post-traumatic stress disorder, causing them to generalize non-threatening events as if they were the original trauma, according to new research from Duke Medicine and the Durham VA Medical Center.

16 Dec 2015

Hematopoietic stem cell transplantation does not provide improvement for patients with Crohn disease

Among adults with difficult to treat Crohn disease not amenable to surgery, hematopoietic stem cell transplantation, compared with conventional therapy, did not result in significant improvement in sustained disease remission at l year and was associated with significant toxicity, according to a study in the December 15 issue of JAMA.

16 Dec 2015

CTE can be diagnosed by neuropathological examination of brain tissue

For the first time, CTE has been confirmed as a unique disease that can be definitively diagnosed by neuropathological examination of brain tissue. A consensus panel of expert neuropathologists concluded that CTE has a pathognomonic signature in the brain, an advance that represents a milestone for CTE research and lays the foundation for future studies defining the clinical symptoms, genetic risk factors and therapeutic strategies for CTE.

16 Dec 2015

Researchers identify dazzling new method for visualizing neurons

Researchers have discovered a dazzling new method of visualizing neurons that promises to benefit neuroscientists and cell biologists alike: by using spectral confocal microscopy to image tissues impregnated with silver or gold.

16 Dec 2015

IIASA researchers provide new measures to replace old-age dependency ratio

Conventional measures of age usually define people as 'old' at one chronological age, often 65. In many countries around the world, age 65 is used as a cutoff for everything from pension age to health care systems, as the basis of a demographic measure known as the 'old-age dependency ratio,' which defines everyone over 65 as depending on the population between ages 20 and 65.

16 Dec 2015

TSRI scientists track how HIV-fighting antibodies develop over time

In a new study, a team led by scientists at The Scripps Research Institute tracked how a family of these HIV-fighting antibodies develops over time. The research shows how a future vaccine might trigger the immune system to produce these antibodies more effectively.

16 Dec 2015

Older adults experience problems in processing multisensory information

Much like trying to watch a video with the audio out of synch, older adults may have difficulty combining the stimuli they see and hear, and it could have implications for rapid decision-making tasks such as driving, according to new research.

16 Dec 2015

New study may help understand how estrogens affect cognition and memory in women

A new study by University of Guelph researchers that narrows down where and how estrogens affect the brain may help in understanding how the hormones affect cognition and memory in women, says psychology professor Elena Choleris.

16 Dec 2015

Molecular signatures can predict flu vaccine responses in young and old

What factors inhibit strong responses to seasonal flu vaccines in the elderly? Why do anti-flu antibodies last longer after vaccination in some people? Answers are emerging from an Emory University-based systems biology analysis of blood samples from more than 400 volunteers who received seasonal flu vaccines. Bali Pulendran, PhD, led a team of researchers who tracked patterns of gene expression, known as molecular signatures, of strong immune responses in volunteers' blood across five consecutive seasons from 2007 to 2011.

16 Dec 2015

Cancer drug may protect kidneys from damage caused by chemotherapy agent cisplatin

A class of drugs used increasingly to help fight cancer may have the additional benefit of protecting the kidneys when packaged with the powerful chemotherapy agent cisplatin.

16 Dec 2015

U of T researchers find another clue in understanding the cause of MS

Researchers at the University of Toronto have found another clue in understanding the cause of what drives Multiple Sclerosis (MS) disease. Their findings were published today in Immunity.

16 Dec 2015

Innovative brain imaging study reveals why ToM deficiencies present in children with ASD

The holidays can be difficult for children with autism spectrum disorder (ASD), particularly because of new or different social situations. One reason scientists believe ASD causes impairment in social interactions is due to an inability to effectively infer other's thoughts and feelings through "theory of mind," or ToM -- the ability to understand the mental states of others and oneself.

16 Dec 2015

UW-Madison scientist creates serotonin neurons from stem cells

Su-Chun Zhang, a pioneer in developing neurons from stem cells at the University of Wisconsin-Madison, has created a specialized nerve cell that makes serotonin, a signaling chemical with a broad role in the brain.

16 Dec 2015

Columbia Engineering professor wins grant to study tendon-to-bone integration for rotator cuff repair

Helen H. Lu, professor of biomedical engineering at Columbia Engineering, has won a three-year $1.125 million Translational Research Award grant from the Department of Defense's Congressionally Directed Medical Research Programs for her research on tendon-to-bone integration for rotator cuff repair.

16 Dec 2015

Can Nanostructured Microelectrodes be Used to Analyze Biomarkers? An Interview with Dr Shana Kelley

Electrochemical methods are appealing because simple and inexpensive instrumentation can be used to make highly sensitive measurements. However, it has been quite difficult to realize clinically-relevant levels of sensitivity using electrochemistry in highly complex, real-world samples.

From Pittcon 15 Dec 2015