Medical Xpress - latest medical and health news stories

Medical Xpress internet news portal provides the latest news on Health and Medicine.

06/06/2017 02:56 PM
Why teen mental ability surges while brain shrinks
(HealthDay)—Scientists say they have an answer to a persistent and quirky puzzle about brain development.

05/30/2017 04:30 PM
Does dad time with infants boost babies' IQ?
(HealthDay)—If you're a new father, spending plenty of time with your baby could boost his or her mental development, a new study suggests.

05/17/2017 09:51 AM
DAWN results show reduction in disability from stroke up to 24 hours of onset
Results from the DAWN stroke trial presented at the European Stroke Organization Conference (ESOC) provide compelling evidence that selected patients suffering a major ischemic stroke recovered significantly better with mechanical retrieval of the blood clot with medical therapy compared with medical therapy alone when initiated past the current guidelines of within 6 hours and up to 24 hours of the stroke.

04/20/2017 12:40 PM
FDA OKs vagus nerve stimulator to treat cluster headaches
(HealthDay)—A new noninvasive device, gammaCore, which works to reduce cluster headache pain by transmitting mild electrical stimulation to the vagus nerve through the skin on the neck, has been approved by the U.S. Food and Drug Administration.

03/30/2017 06:30 AM
Tests can quantify automatic empathy and moral intuitions
When people scan the latest political headlines or watch a video from a war-ravaged land, they tend to feel snap ethical or moral responses first and reason through them later. Now a team of psychologists have developed news tests and mathematical models that help to capture and quantify those snap moral and empathetic judgments.

02/21/2017 08:40 AM
Mindfulness shows promise as we age, but study results are mixed
As mindfulness practices rise in popularity and evidence of their worth continues to accumulate, those who work with aging populations are looking to use the techniques to boost cognitive, emotional and physiological health.

01/24/2017 07:29 AM
Clinical trial for first-ever treatment of radiation necrosis
Radiation therapy saves countless lives, but in rare cases, it can cause a debilitating, long-term complication when used on the brain. Around three to five percent of patients who receive radiation for brain tumors, or arteriovenous malformations (AVM), develop radiation necrosis, where the brain tissue around the targeted lesion becomes injured and dies.

01/18/2017 02:10 PM
Gene that enables memories, sense of direction produces schizophrenia-like symptoms when mutated
Mutations in a gene that should enable memories and a sense of direction instead can result in imprecise communication between neurons that contributes to symptoms of schizophrenia, scientists report.

01/10/2017 09:10 AM
Early Alzheimer's gene spells tragedy for patients, opportunity for science
Rosemary Navarro was living in Mexico when her brother called from California. Something wasn't right with their mom, then in her early 40s. She was having trouble paying bills and keeping jobs as a food preparer in convalescent homes.

12/05/2016 11:08 AM
Study sheds light on safety of driving with epilepsy
(HealthDay)—People with epilepsy who experienced longer seizures during a simulated driving test may face an increased risk for crashes while on the road, a new study suggests.

11/14/2016 03:58 PM
Compound suggests pain treatment without opioid or medical marijuana side effects
Indiana University neuroscientist Andrea Hohmann took the stage at a press conference Nov. 14 in San Diego to discuss research conducted at IU that has found evidence that the brain's cannabis receptors may be used to treat chronic pain without the side effects associated with opioid-based pain relievers or medical marijuana.

10/24/2016 06:13 AM
How we discovered that heading a football causes impairment of brain function
Heading a football may look effortless but many scientists have suspected it might actually harm the player's brain. There could be real consequences – we know that brain injury is linked to an increased risk of dementia, for example. However, it has proven surprisingly difficult to find out the true impact of football heading, partly because mild brain injury is notoriously difficult to detect.

08/15/2016 04:12 AM
People prefer explanations that refer to a more fundamental science, study says
Why do some science news stories catch our eye, even if they use exaggerated, irrelevant or inaccurate information?

08/10/2016 09:50 AM
5 tips to help teens get needed school-year zzzzzs
(HealthDay)—When a new school year begins, many teens have a hard time readjusting their sleeping habits.

07/25/2016 01:00 PM
Hot news flash! Menopause, insomnia accelerate aging
Two separate UCLA studies reveal that menopause and the insomnia that often accompanies it make women age faster.

05/25/2016 11:00 AM
Out of tune: Mismatch of vascular and neural responses suggests limits of fMRI
In an article published online ahead of print on May 25, 2016 in Nature, investigators at the Medical University of South Carolina (MUSC) report that, during sensory stimulation, increases in blood flow are not precisely "tuned" to local neural activity, challenging the long-held view that vascular and local neural responses are tightly coupled.

04/26/2016 05:10 AM
Wrapping up multiple sclerosis
With one drug to shut down its progression and another to undo its damage, plus a worldwide effort stalking the origins of multiple sclerosis, MS doesn't stand a chance.

03/29/2016 10:11 AM
Are stem-cell therapies for Parkinson's disease ready for clinical trials?
As stem cell-based therapies are moving rapidly towards clinical trials, treatments for Parkinson's Disease (PD), an incurable condition, may be on the horizon. A recent announcement of a Phase I/IIa clinical trial involving transplantation of stem cells into the first human subjects has raised hope among patients and sparked discussions in the research community. In a commentary published in the Journal of Parkinson's Disease, authors propose five key questions that should be addressed as this trial begins.

12/08/2015 08:40 AM
Lack of sleep tampers with your emotions
Cranky or grumpy after a long night? Your brain's ability to regulate emotions is probably compromised by fatigue. This is bad news for 30 percent of American adults who get less than six hours of sleep per night, according to the Centers for Disease Control and Prevention.

11/17/2015 07:38 AM
Can you think yourself into a different person?
For years she had tried to be the perfect wife and mother but now, divorced, with two sons, having gone through another break-up and in despair about her future, she felt as if she'd failed at it all, and she was tired of it. On 6 June 2007 Debbie Hampton, of Greensboro, North Carolina, took an overdose of more than 90 pills – a combination of ten different prescription drugs, some of which she'd stolen from a neighbour's bedside cabinet. That afternoon, she'd written a note on her computer: "I've screwed up this life so bad that there is no place here for me and nothing I can contribute." Then, in tears, she went upstairs, sat on her bed, swallowed her pills with some cheap Shiraz and put on a Dido CD to listen to as she died. As she lay down, she felt triumphant.

10/19/2015 05:38 AM
The brain's wiring is linked to good – and bad – behavioral traits
The way our brains are wired may reveal a lot about us, according to new research co-authored by scientists at Washington University in St. Louis.

10/18/2015 01:52 PM
Premature birth appears to weaken brain connections
Babies born prematurely face an increased risk of neurological and psychiatric problems that may be due to weakened connections in brain networks linked to attention, communication and the processing of emotions, new research shows.

10/07/2015 02:50 PM
Bedtime texting may be hazardous to teens' health
(HealthDay)—Many American teens text in bed, leading to lost sleep, daytime drowsiness and poorer school performance, a new study says.

10/07/2015 07:20 AM
Our brain's response to others' good news depends on empathy
The way our brain responds to others' good fortune is linked to how empathetic people report themselves to be, according to new UCL-led research.

08/25/2015 05:51 AM
Researcher discusses neuroscience history and new hope for autistic people
To mark the publication of the book NeuroTribes (Aug 25, 2015; Avery/Penguin Random House) by Steve Silberman, whose blog of the same name has been hosted on the PLOS BLOGS Network since 2010, we invited independent science writer Emily Willingham, PhD to review the book and conduct an in-depth interview with the author. Willingham's review and interview follow, with her full bio at the bottom of this post.

07/14/2015 03:46 AM
Intellectual pursuits may buffer the brain against addiction
Challenging the idea that addiction is hardwired in the brain, a new UC Berkeley study of mice suggests that even a short time spent in a stimulating learning environment can rewire the brain's reward system and buffer it against drug dependence.

06/01/2015 09:00 AM
Poor sleep linked to toxic buildup of Alzheimer's protein, memory loss
Sleep may be a missing piece in the Alzheimer's disease puzzle.

04/13/2015 09:00 AM
How deep-brain stimulation reshapes neural circuits in Parkinson's disease
UC San Francisco scientists have discovered a possible mechanism for how deep-brain stimulation (DBS), a widely used treatment for movement disorders, exerts its therapeutic effects.

04/03/2015 07:30 AM
Possible progress against Parkinson's and good news for stem cell therapies
Brazilian researchers at D'OR Institute for Research and Education (IDOR) and Federal University of Rio de Janeiro (UFRJ) have taken what they describe as an important step toward using the implantation of stem cell-generated neurons as a treatment for Parkinson's disease. Using an FDA approved substance for treating stomach cancer, Rehen and colleagues were able to grow dopamine-producing neurons derived from embryonic stem cells that remained healthy and functional for as long as 15 months after implantation into mice, restoring motor function without forming tumors.

03/05/2015 06:16 AM
Daylight saving time's 'spring forward' can cause problems, expert says
Daylight saving time begins at 2:00 a.m. Sunday—and while you'll only turn the clock ahead one hour, the disruption might be enough to throw you temporarily off kilter.