ScienceDaily: Health & Medicine News

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• Genetic analysis identifies proteins controlling sleep in mice
• Potential treatment for Niemann-Pick type C disease
• Words matter when talking about Alzheimer's
• 'Corkscrew' shape of blood flow in heart's upper chamber may signal lower stroke risk
• Single mutation in recessive gene increases risk of earlier onset Parkinson's disease
• Sleep deprivation may cause people to eat more calories
• Women experience marked decline in sexual function in months immediately before and after onset of menopause
• A lot of blood, for no reason? Common, costly clot test has few benefits
• Technology brings new precision to study of circadian rhythm in individual cells
• Brain volume predicts successful weight loss in the elderly
• Trimming the spare tire: Canola oil may cut belly fat
• Well-being linked with when, how people manage emotions
• Cause of inflammation in diabetes identified
• Miscarriage, ectopic pregnancy may trigger post-traumatic stress disorder
• Men welcome revolutionary male contraceptive
• Chemists create clusters of organelles by mimicking nature
• Ovarian transplantation might be possible in future
• Two antibiotics fight bacteria differently than thought
• Nearly every American will know a victim of gun violence
• Creating a slippery slope on the surface of medical implants
• New study explains factors that influence the timing of infectious disease outbreaks
• Scientists flip molecular switches to distinguish closely related immune cell populations
• Perceptions of tap water quality linked to PTSD in Flint, Michigan, residents
• Beta-cryptoxanthin, a carotenoid, inhibits nicotine-linked lung cancer development in mice
• New target could halt growth, spread of ovarian cancer
• Can we harness our genes to burn more calories?
• Managing depression, fatigue in patients with heart failure may reduce hospital stays, mortality
• Cutting nerves to the kidneys improves insulin resistance, diabetes study finds
• Common heart problem caused by cancer therapy avoided blood vessel treatment

Genetic analysis identifies proteins controlling sleep in mice Posted: 02 Nov 2016 11:21 AM PDT A genetic screening approach has been used to identify mutations that affect sleep/wakefulness in mice, international researchers report. The amount of rapid eye movement (REM) sleep and non-REM sleep shown to be regulated by NALCN and SIK3 proteins, respectively.

Potential treatment for Niemann-Pick type C disease Posted: 02 Nov 2016 10:52 AM PDT Researchers have improved a potential treatment for a rare genetic disease, decreasing its negative toxic effects by threading it onto a dumb-bell-shaped chain and holding it in place until it reaches its target.

Words matter when talking about Alzheimer's Posted: 02 Nov 2016 10:08 AM PDT Using war metaphors in reference to Alzheimer's disease should be replaced with messages of resilience against a complex, age-associated condition that may not be fully defeatable, according to a team of researchers.

'Corkscrew' shape of blood flow in heart's upper chamber may signal lower stroke risk Posted: 02 Nov 2016 10:08 AM PDT Using specialized CT scans of a healthy heart and one with heart disease, a team of cardiologists and biomedical engineers say they've created computer models of the "shape" of blood flow through the heart's upper left chamber that someday may help predict stroke risk.

Single mutation in recessive gene increases risk of earlier onset Parkinson's disease Posted: 02 Nov 2016 10:07 AM PDT A genetic mutation confers a risk for development of Parkinson's disease earlier than usual, an international team of researchers has discovered.

Sleep deprivation may cause people to eat more calories Posted: 02 Nov 2016 10:07 AM PDT Sleep deprivation may result in people consuming more calories during the following day, according to a systematic review and meta-analysis.

Women experience marked decline in sexual function in months immediately before and after onset of menopause Posted: 02 Nov 2016 10:06 AM PDT Women experience a notable decline in sexual function approximately 20 months before and one year after their last menstrual period, and that decrease continues, though at a somewhat slower rate, over the following five years, according to a study.

A lot of blood, for no reason? Common, costly clot test has few benefits Posted: 02 Nov 2016 10:06 AM PDT A half billion dollars – at least -- gets spent each year on blood tests to see which hospital patients have a genetic quirk that makes their blood more likely to form dangerous clots. And most of that spending probably isn't necessary, a new review shows.

Technology brings new precision to study of circadian rhythm in individual cells Posted: 02 Nov 2016 10:04 AM PDT A new technology may help scientists better understand how an individual cell synchronizes its biological clock with other cells.

Brain volume predicts successful weight loss in the elderly Posted: 02 Nov 2016 10:04 AM PDT If you're trying to lose weight, what are your chances of success? Your brain may hold the key. Scientists believe they may have found a way to predict who will be successful in their weight-loss efforts with a quick, non-invasive brain scan.

Trimming the spare tire: Canola oil may cut belly fat Posted: 02 Nov 2016 05:45 AM PDT Canola oil is high in monounsaturated fatty acids, which have been shown to have beneficial effects on body composition, especially in people with obesity. When participants consumed conventional canola oil or high-oleic acid canola oil for just four weeks, they lost abdominal fat, report researchers.

Well-being linked with when, how people manage emotions Posted: 02 Nov 2016 05:45 AM PDT Reframing how we think about a situation is a common strategy for managing our emotions, but a new study suggests that using this reappraisal strategy in situations we actually have control over may be associated with lower well-being.

Cause of inflammation in diabetes identified Posted: 02 Nov 2016 05:03 AM PDT Inflammation is one of the main reasons why people with diabetes experience heart attacks, strokes, kidney problems and other, related complications. Now, in a surprise finding, researchers have discovered, in mice, that when certain immune cells can't manufacture fat, the mice don't develop diabetes and inflammation, even when consuming a high-fat diet.

Miscarriage, ectopic pregnancy may trigger post-traumatic stress disorder Posted: 02 Nov 2016 05:01 AM PDT Women may be at risk of post-traumatic stress disorder following a miscarriage or ectopic pregnancy, suggests a new study.

Men welcome revolutionary male contraceptive Posted: 02 Nov 2016 05:01 AM PDT Men have positive attitudes towards an innovative male contraceptive, Vasalgel, new research has found. The landmark study is the first insight into how men perceive the new contraceptive and gives promising signs that Vasalgel may revolutionize approaches to reproductive health.

Chemists create clusters of organelles by mimicking nature Posted: 02 Nov 2016 05:00 AM PDT Scientists have succeeded in organizing spherical compartments into clusters mimicking the way natural organelles would create complex structures. They managed to connect the synthetic compartments by creating bridges made of DNA between them. This represents an important step towards the realization of so-called molecular factories.

Ovarian transplantation might be possible in future Posted: 02 Nov 2016 04:59 AM PDT Approximately 11% of women worldwide suffer from premature ovarian failure. Because of the advances in modern cancer therapy, the number of young women surviving cancer is on the increase. However, in most cases, no specific cause can be identified. Now, for the first time, an international team of researchers has successfully transplanted an ovary from one individual to another, even managing to restore a monthly cycle.

Two antibiotics fight bacteria differently than thought Posted: 01 Nov 2016 02:12 PM PDT Two widely prescribed antibiotics — chloramphenicol and linezolid — may fight bacteria in a different way from what scientists and doctors thought for years, researchers have found. Instead of indiscriminately stopping protein synthesis, the drugs put the brakes on the protein synthesis machinery only at specific locations in the gene.

Nearly every American will know a victim of gun violence Posted: 01 Nov 2016 12:29 PM PDT Nearly all Americans are likely to know a victim of gun violence within their social networks during their lifetime, indicating that citizens are "closer to gun violence than they perceive," according to a new study.

Creating a slippery slope on the surface of medical implants Posted: 01 Nov 2016 08:19 AM PDT A self-healing slippery coating applied on the surface of an implanted medical device protects against infectious biofilm formation, say researchers.

New study explains factors that influence the timing of infectious disease outbreaks Posted: 01 Nov 2016 07:59 AM PDT The delay between the time when a disease outbreak becomes possible and when it actually happens depends chiefly on how frequently infection is introduced to the population and how quickly the number of cases caused by a single individual increases, according to new research.

Scientists flip molecular switches to distinguish closely related immune cell populations Posted: 01 Nov 2016 06:37 AM PDT The cornerstone of genetics is the loss-of-function experiment. In short, this means that to figure out what exactly gene X is doing in a tissue of interest—be it developing brain cells or a pancreatic tumor—you somehow cut out, switch off or otherwise destroy gene X in that tissue and then watch what happens. That genetic litmus test has been applied since before people even knew the chemical DNA is what makes up genes. What has changed radically are the tools used by biologists to inactivate a gene.

Perceptions of tap water quality linked to PTSD in Flint, Michigan, residents Posted: 01 Nov 2016 06:37 AM PDT The water crisis in Flint, Michigan, increased the stress levels of community residents, according to new research.

Beta-cryptoxanthin, a carotenoid, inhibits nicotine-linked lung cancer development in mice Posted: 01 Nov 2016 06:37 AM PDT New study finds that beta-cryptoxanthin, a carotenoid primarily found in plants, reduces lung cancer development and invasiveness in mouse and cell models. The results support human epidemiological studies associating high beta-cryptoxanthin intake with lower risk of lung cancer in current smokers.

New target could halt growth, spread of ovarian cancer Posted: 01 Nov 2016 06:37 AM PDT Researchers have identified a protein that helps ovarian cancer cells multiply and spread. By blocking it with a new antibody agent, they could slow the cancer's growth and stop it from metastasizing, say researchers.

Can we harness our genes to burn more calories? Posted: 01 Nov 2016 06:37 AM PDT Novel biomedical research uncovers a tie between a genetic variant and energy expenditure – a potential biological pathway to increase calorie burn and weight loss, say researchers.

Managing depression, fatigue in patients with heart failure may reduce hospital stays, mortality Posted: 01 Nov 2016 06:35 AM PDT Patients with both fatigue and depression were hospitalized more than those without either condition, a new study shows. They also had more visits to the emergency department and longer lengths of stay.

Cutting nerves to the kidneys improves insulin resistance, diabetes study finds Posted: 01 Nov 2016 06:35 AM PDT Incapacitating specific nerves to the kidneys improves the work of insulin on another organ, the liver, according to research.

Common heart problem caused by cancer therapy avoided blood vessel treatment Posted: 01 Nov 2016 06:33 AM PDT Some of the harmful effects of a commonly used cancer drug can be alleviated by using gene therapy that stimulates blood vessel growth in the heart, researchers have found.

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