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Medical Xpress - latest medical and health news stories

Medical Xpress internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.


Therapeutic form of arsenic is a potential treatment for deadly type of brain cancer

Tue, 17 Oct 2017 15:52:44 EDT

From Sherlock Holmes to Agatha Christie, arsenic is often the poison of choice in popular whodunits. But in ultra-low dosage, and in the right form, this naturally occurring chemical element can be a potent force against cancer.

Finding the right osteoporosis medication

Tue, 17 Oct 2017 14:50:01 EDT

Dear Mayo Clinic: The bisphosphonate drugs I take for osteoporosis aren't working in my case. My doctor has suggested a few alternatives. Any thoughts on what might be best?

Ketamine not linked to PTSD in military trauma setting

Tue, 17 Oct 2017 14:40:02 EDT

(HealthDay)—Ketamine administration is not associated with post-traumatic stress disorder (PTSD) in the military trauma setting, according to a study published online Oct. 3 in Anaesthesia.

Thrombosis odds up with bioresorbable vascular scaffolds

Tue, 17 Oct 2017 14:30:03 EDT

(HealthDay)—Everolimus-eluting bioresorbable vascular scaffolds (BVSs) are associated with increased odds of scaffold thrombosis and other thrombotic events compared with everolimus-eluting metallic stents (EESs), according to a review published online Oct. 16 in the Annals of Internal Medicine.

Prevalence of oral HPV infection higher for U.S. men

Tue, 17 Oct 2017 14:20:03 EDT

(HealthDay)—Oral human papillomavirus (HPV) infection and high-risk oral HPV infection are more common among men than women, according to a study published online Oct. 16 in the Annals of Internal Medicine.

Screening tools identify potentially inappropriate meds

Tue, 17 Oct 2017 14:10:25 EDT

(HealthDay)—Internal medicine patients are frequently prescribed potentially inappropriate medications (PIMs), but screening tools can detect clinically relevant PIMs, according to a study published online Oct. 8 in the Journal of Clinical Pharmacy and Therapeutics.

Sleep and Alzheimer's disease connection

Tue, 17 Oct 2017 14:10:04 EDT

How often do you get a good night's sleep? Centers for Disease Control and Prevention guidelines recommend adults get an average of at least seven hours of sleep a night. Dr. Ronald Petersen, a Mayo Clinic neurologist, says prolonged lack of sleep could raise your risk of many health issues, including Alzheimer's disease.

Worms learn to smell danger

Tue, 17 Oct 2017 14:00:08 EDT

Worms can learn. And the ways they learn and respond to danger could lead scientists to new treatments for people with neurodegenerative diseases.

High blood pressure linked to common heart valve disorder

Tue, 17 Oct 2017 14:00:06 EDT

For the first time, a strong link has been established between high blood pressure and the most common heart valve disorder in high-income countries, by new research from The George Institute for Global Health at the University of Oxford.

'Mystery clients' reveal weaknesses of tuberculosis care in rural China

Tue, 17 Oct 2017 14:00:06 EDT

Many health care providers in China—especially those at village clinics and township health centers—fail to correctly manage tuberculosis (TB) cases, according to a study involving standardized patients published this week in PLOS Medicine by Sean Sylvia of the University of North Carolina at Chapel Hill, USA, Chengchao Zhou of Shangdong University, China, and colleagues at the World Bank, McGill University, Stanford University and other institutions in China.

Appeals court tosses $72 million award in talcum powder case

Tue, 17 Oct 2017 13:50:14 EDT

A Missouri appeals court on Tuesday that vacated a $72 million award to an Alabama woman who claimed her use of Johnson & Johnson products that contained talcum contributed to her ovarian cancer has thrown the fate of awards in similar cases into doubt.

Venovenous hemodiafiltration improves metformin toxicity

Tue, 17 Oct 2017 13:50:02 EDT

(HealthDay)—High-volume continuous venovenous hemodiafiltration (CVVH) and resin-sorbent hemoperfusion is effective for eliminating metformin, according to a case study published online Oct. 5 in the Journal of Diabetes Investigation.

Weight-loss surgery may curb risk for certain cancers

Tue, 17 Oct 2017 13:47:51 EDT

(HealthDay)—Weight-loss surgery could help some severely obese people reduce their risk for cancer by at least 33 percent, a new study suggests.

Who's most at risk of head injury in youth football?

Tue, 17 Oct 2017 13:46:46 EDT

(HealthDay)—Young football players are more likely to experience a brain-jarring hit to the head if they're part of a team's running and passing game or a fast-moving defender, a small study found.

New research opens the door to 'functional cure' for HIV

Tue, 17 Oct 2017 13:43:08 EDT

In findings that open the door to a completely different approach to curing HIV infections, scientists from the Florida campus of The Scripps Research Institute (TSRI) have for the first time shown that a novel compound effectively suppresses production of the virus in chronically infected cells, and prevents viral rebound, even when those infected cells are subjected to vigorous stimulation.

A new compound targets energy generation, thereby killing metastatic cells

Tue, 17 Oct 2017 12:44:56 EDT

Cancer can most often be successfully treated when confined to one organ. But a greater challenge lies in treating cancer that has metastasized, or spread, from the primary tumor throughout the patient's body. Although immunotherapy can be effective in treating the metastatic phase of the disease, it is still applicable to a limited number of patients.

Experts devise plan to slash unnecessary medical testing

Tue, 17 Oct 2017 12:42:30 EDT

Researchers at top hospitals in the U.S. and Canada have developed an ambitious plan to eliminate unnecessary medical testing, with the goal of reducing medical bills while improving patient outcomes, safety and satisfaction.

Before assigning responsibility, our minds simulate alternative outcomes, study shows

Tue, 17 Oct 2017 12:40:57 EDT

How do people assign a cause to events they witness? Some philosophers have suggested that people determine responsibility for a particular outcome by imagining what would have happened if a suspected cause had not intervened.

Breast cancer treatments today—and tomorrow

Tue, 17 Oct 2017 12:32:49 EDT

The concept of "collective intelligence" is simple - it asserts that if a team performs well on one task, it will repeat that success on other projects, regardless of the scope or focus of the work. While it sounds good in theory, it doesn't work that way in reality, according to an Iowa State University researcher.

NSQIP geriatric surgery pilot study may help improve outcomes for older surgical patients

Tue, 17 Oct 2017 12:25:58 EDT

Adding geriatric-specific risk factors to the blend of traditional risk factors could significantly improve the ability of surgeons to predict poor outcomes in older surgical patients, according to new study findings published online as an "article in press" on the Journal of the American College of Surgeons website ahead of print publication. The study's authors believe that surgical databases should be expanded to include information reflecting the unique needs of older adults in order to provide the best possible care for them.

Assessment shows metagenomics software has much room for improvement

Tue, 17 Oct 2017 12:21:58 EDT

A recent critical assessment of software tools represents a key step toward taming the "Wild West" nature of the burgeoning field of metagenomics, said an Oregon State University mathematical biologist who took part in the research.

UB spinoff company For-Robin moves one step closer to human clinical trials

Tue, 17 Oct 2017 12:16:42 EDT

Scientists from For-Robin Inc., a University at Buffalo biotechnology spinoff, have published new scientific results showing that the company's cancer-fighting antibody can target, penetrate and kill human tumor cells effectively.

Predicting how healthy your heart will be years down the road

Tue, 17 Oct 2017 12:11:39 EDT

Picture this: you're battling heart failure and meeting with your doctor to discuss treatment. Before prescribing anything, the doctor pulls up a virtual model of your heart on her computer and "treats" it with several drugs. A few moments later, she can see how your heart is doing five years down the road.

New teleneurology curriculum provides guidelines for care

Tue, 17 Oct 2017 12:08:04 EDT

Health professionals can deliver quality neurological care remotely to patients through the emerging field of teleneurology. However, medical training has not caught up with the field, and a lack of formalized education for teleneurology doesn't exist. Now, a researcher at the University of Missouri School of Medicine, as part of an American Academy of Neurology (AAN) team, has developed a standardized curriculum for providing remote neurology care via telecommunication.

Team finds training exercise that boosts brain power

Tue, 17 Oct 2017 12:04:59 EDT

One of the two brain-training methods most scientists use in research is significantly better in improving memory and attention, Johns Hopkins University researchers found. It also results in more significant changes in brain activity.

Regulatory T cells harbor HIV/SIV virus during antiviral drug treatment

Tue, 17 Oct 2017 12:00:12 EDT

Scientists at Yerkes National Primate Research Center, Emory University have identified an additional part of the HIV reservoir, immune cells that survive and harbor the virus despite long-term treatment with antiviral drugs.

New bowel cancer drug target discovered

Tue, 17 Oct 2017 12:00:11 EDT

Researchers at the Francis Crick Institute have discovered a new drug target for bowel cancer that is specific to tumour cells and therefore less toxic than conventional therapies.

Gene transcription in virus-specific CD8 T cells differentiates chronic from resolving HCV

Tue, 17 Oct 2017 12:00:09 EDT

Massachusetts General Hospital (MGH) investigators have identified differences in gene transcription within key immune cells that may distinguish those individuals infected with the hepatitis C virus (HCV) who develop chronic infection from those whose immune systems successfully clear the virus. As they describe in a paper published in the journal Immunity, these changes appear soon after initial emergence of the T-cell response and long before conventional T-cell testing or clinical symptoms indicate whether or not an infection will become chronic.

'Busybody' protein may get on your nerves, but that's a good thing

Tue, 17 Oct 2017 12:00:08 EDT

Sensory neurons regulate how we recognize pain, touch, and the movement and position of our own bodies, but the field of neuroscience is just beginning to unravel this circuitry. Now, new research from the Salk Institute shows how a protein called p75 is critical for pain signaling, which could one day have implications for treating neurological disorders as well as trauma such as spinal cord injury.

New approach helps rodents with spinal cord injury breathe on their own

Tue, 17 Oct 2017 12:00:06 EDT

One of the most severe consequences of spinal cord injury in the neck is losing the ability to control the diaphragm and breathe on one's own. Now, investigators show for the first time in laboratory models that two different sets of neural signals control the movement of the diaphragm—one that originates in the brain and one that starts in the spinal cord. The researchers used a drug to turn on this alternative nerve pathway and restore breath-like movements in rodents. The study appears October 17 in Cell Reports.