wtorek, 17 marca 2015

Fwd: Science X Newsletter Thursday, Mar 12

RESPEKT!


---------- Forwarded message ----------
From: Newsletter Phys.org <not-for-reply@physorg.com>
Date: Fri, Mar 13, 2015 at 1:44 AM
Subject: Science X Newsletter Thursday, Mar 12
To: Pascal Alter <pascal.alter@gmail.com>


Dear Pascal Alter,

Here is your customized Phys.org Newsletter for March 12, 2015:

Spotlight Stories Headlines

- Loophole in theory offers insight into the 'lithium problem'
- Engineers create chameleon-like artificial 'skin' that shifts color on demand
- You are when you eat: Limiting flies to specific eating hours protected their hearts against aging
- Hubble observations suggest underground ocean on Jupiter's largest moon Ganymede
- New technique could lead to long-lasting localized stimulation of brain tissue without external connections
- Tracking marine plankton provides new information to reconstruct past climate
- CERN's revamped particle smasher ready to push physics into unknown
- ATRIAS prepares for live demo at robotics challenge (w/ Video)
- Wake up Philae! The world awaits news (Update)
- Immune system-in-a-dish offers hope for 'bubble boy' disease
- Stem cells lurking in tumors can resist treatment
- Optogenetics without the genetics: Nanoparticles enable stimulation of normal, non-genetically modified neurons
- 3-D printer for small molecules opens access to customized chemistry
- Political liberals display greater happiness, study finds
- Researchers find hidden meaning and 'speed limits' within genetic code

Astronomy & Space news

Hubble observations suggest underground ocean on Jupiter's largest moon Ganymede

NASA's Hubble Space Telescope has the best evidence yet for an underground saltwater ocean on Ganymede, Jupiter's largest moon. The subterranean ocean is thought to have more water than all the water on Earth's surface.

Japan space scientists make wireless energy breakthrough

Japanese scientists have succeeded in transmitting energy wirelessly, in a key step that could one day make solar power generation in space a possibility, an official said Thursday.

Some habitable exoplanets could experience wildly unpredictable climates

As telescopes of ever-greater power scan the cosmos looking for life, knowing where to look—and where not to waste time looking—will be of great value.

Wake up Philae! The world awaits news (Update)

Excitement mounted Thursday as scientists started listening for signs of life from robot lab Philae, hurtling through space perched on a comet some 460 million kilometres (285 million miles) from Earth.

Researchers study methane-rich plumes from Saturn's icy moon Enceladus

NASA's Cassini spacecraft has measured a curious abundance of methane spewing into the atmosphere of Saturn's icy moon Enceladus. A team of American and French scientists published findings in Geophysical Research Letters suggesting two scenarios that could explain the methane abundance observed in the plumes.

Astronauts return to Earth on Russian Soyuz spaceship (Update)

Two Russian cosmonauts and an American astronaut on Thursday returned to Earth aboard a Soyuz space capsule after six months at the International Space Station.

Image: Optical bench of LISA Pathfinder

An intimate view of a key part of the payload of ESA's LISA Pathfinder satellite, which will be the 'stillest' ever flown in space – in fact, the distant-orbiting spacecraft is set to become the single most stable place in the Solar System.

Mars scientists capture image of sci-fi landing site

Images taken by the UA-led HiRISE mission reveal that the setting of the best-selling novel "The Martian" is far from being the featureless plain described in the book.

Saturn's moon Enceladus could be another location for life beyond Earth

The Cassini mission that has investigated Saturn since 2004 has revealed much about the giant planet and its many moons. Perhaps most tantalising is the discovery that the moon Enceladus is the source of strong geysers ejecting plumes of water and ice.

Image: Astronaut meets Eurobot

ESA astronaut Andreas Mogensen is preparing for his 10-day flight to the International Space Station in September that will see him testing many new technologies. He met the Eurobot rover at ESA's technical centre in Noordwijk, the Netherlands, on Tuesday for the first time.

Crossing the boundary from high to low on Mars

On the boundary between the heavily cratered southern highlands and the smooth northern lowlands of Mars is an area rich in features sculpted by water and ice.

NASA set to launch four spacecraft to solve magnetic mystery (Update)

NASA is sending four identical spacecraft on a billion-dollar mission to study the explosive give-and-take of the Earth and sun's magnetic fields.

Mars rover moving robotic arm again after electrical short

NASA says the robotic arm on the Curiosity rover is moving again after a short circuit temporarily halted its work on Mars.

Move it or lose it: One-year mission video miniseries

Have you ever noticed after lying in bed sick for a few days that standing upright took you a moment to regain your balance? Or perhaps you have an aging grandparent who spends more time lying in bed than standing and you had to help them up because they have not used their leg muscles in a while? After living aboard the International Space Station, research into this area of physical performance may hold answers for those living with challenges from health-related concerns from prolonged inactivity.

Medicine & Health news

You are when you eat: Limiting flies to specific eating hours protected their hearts against aging

If you're looking to improve your heart health by changing your diet, when you eat may be just as important as what you eat. In a new study published today in Science, researchers at San Diego State University and the Salk Institute for Biological Studies found that by limiting the time span during which fruit flies could eat, they could prevent aging- and diet-related heart problems. The researchers also discovered that genes responsible for the body's circadian rhythm are integral to this process, but they're not yet sure how.

Ultrasound against Alzheimer's shows promise in lab animals

Queensland scientists have found that non-invasive ultrasound technology can be used to treat Alzheimer's disease and restore memory.

Stem cells lurking in tumors can resist treatment

Scientists are eager to make use of stem cells' extraordinary power to transform into nearly any kind of cell, but that ability also is cause for concern in cancer treatment. Malignant tumors contain stem cells, prompting worries among medical experts that the cells' transformative powers help cancers escape treatment.

Immune system-in-a-dish offers hope for 'bubble boy' disease

For infants with severe combined immunodeficiency (SCID), something as simple as a common cold or ear infection can be fatal. Born with an incomplete immune system, kids who have SCID—also known as "bubble boy" or "bubble baby" disease—can't fight off even the mildest of germs. They often have to live in sterile, isolated environments to avoid infections and, even then, most patients don't live past a year or two. This happens because stem cells in SCID patients' bone marrow have a genetic mutation that prevents them from developing critical immune cells, called T and Natural Killer (NK) cells.

Optogenetics without the genetics: Nanoparticles enable stimulation of normal, non-genetically modified neurons

Light can be used to activate normal, non-genetically modified neurons through the use of targeted gold nanoparticles, report scientists from the University of Chicago and the University of Illinois at Chicago. The new technique, described in the journal Neuron on March 12, represents a significant technological advance with potential advantages over current optogenetic methods, including possible use in the development of therapeutics toward diseases such as macular degeneration.

New work schedule could cure your 'social jetlag'

Many of us are walking around all the time in a fog caused by "social jetlag." That's what happens when we lose sleep because our daily schedules don't match our bodies' natural rhythms. The condition can be a particular problem for shift workers, who work into the night or on a shifting schedule. Now, researchers report in the Cell Press journal Current Biology on March 12 that sleep and workers' general wellbeing could be improved if work schedules took workers' biological clocks into account.

Intestinal gas could be used to diagnose diseases

Microbes in the human body are estimated to outnumber human cells by 10 to 1, yet research on how they affect health is still in its infancy. A perspective article published by Cell Press on March 12th in Trends in Biotechnology presents evidence that gut microbes produce gases that may contribute to gastrointestinal diseases and could be used as biomarkers for one's state of health. As means to measure these potential biomarkers, the authors suggest two novel gas-sensing systems, one of which is an electronic gas sensor in the form of a pill you can swallow. These systems may offer a reliable and economical way to understand the impact of intestinal gases on human health, paving the way for the development of new diagnostic techniques and therapies.

Researchers find T cells target dengue virus at the skin infection site

(Medical Xpress)—A team of researchers working in Singapore has found that human T cells actually target dengue viral infections in the skin, which is the normal infection site. In their paper published in the journal Science Translational Medicine, the team describes how they found that T cells in patients were able to recognize the dengue virus and also expressed a marker that caused them to move to the skin.

New technique could lead to long-lasting localized stimulation of brain tissue without external connections

Researchers at MIT have developed a method to stimulate brain tissue using external magnetic fields and injected magnetic nanoparticles—a technique allowing direct stimulation of neurons, which could be an effective treatment for a variety of neurological diseases, without the need for implants or external connections.

Ebola outbreak of 2014 may have laid tracks for deadly measles epidemic in Africa

The Ebola outbreak that has swept West Africa since 2014 may have cleared the way for a more familiar killer that could claim thousands of more lives—measles.

Political liberals display greater happiness, study finds

What does it mean to be happy? Is it how happy you say you are, or is it how happy you act? Previous research has found that political conservatives report being happier than political liberals. But UC Irvine psychologists have discovered that those on the left exhibit happier speech patterns and facial expressions.

Inflammatory factor IL-3 may play essential role in development of sepsis

A new study finds that Interleukin-3 (IL-3), an inflammatory factor most associated with allergic reactions, appears to have an important role in the overwhelming, life-threatening immune reaction called sepsis. In the March 13 issue of Science, investigators from Massachusetts General Hospital (MGH) describe finding that the presence of IL-3 is essential to the development of sepsis in a mouse model of the condition and that IL-3 levels in human patients with sepsis are higher in those at greater risk of dying.

Healthy eating, exercise, and brain-training

A comprehensive programme providing older people at risk of dementia with healthy eating guidance, exercise, brain training, and management of metabolic and vascular risk factors appears to slow down cognitive decline, according to the first ever randomised controlled trial of its kind, published in The Lancet.

Teen cannabis users have poor long-term memory in adulthood

Teens who were heavy marijuana users - smoking it daily for about three years—had an abnormally shaped hippocampus and performed poorly on long-term memory tasks, reports a new Northwestern Medicine study.

Air quality in nursing homes affecting lung health of residents

The indoor air quality in nursing homes has a serious effect on the lung health of elderly residents, according to the findings of a new study.

Healthcare at the touch of a finger

A new fingerprint ID device gives healthworkers access to accurate patient records.

Researchers track the body's biological activities to explain how genes make us who we are

Keck Medicine of USC researchers in the lab of Peggy Farnham were key participants in the recent publication of a landmark collection of scientific papers related to mapping the DNA and histone modifications in human epigenomes and the ways that they coordinate the body's biological activities.

Therapeutic massage takes on cancer fatigue

In a continuation of clinical trials related to the biological benefits of massage therapy, Emory researchers are currently studying how massage may help reduce fatigue in breast cancer patients.

Marijuana edible products need stronger regulation, experts say

States that have legalized marijuana need to put strong restrictions on the drug's edible products, according to two Stanford law professors.

New Ebola treatment trial starts in Sierra Leone

A clinical trial of a potential Ebola therapy, led by Oxford University, is underway in Sierra Leone.

Biomarker monitors testosterone therapy for osteoporosis

That biomarker, an enzyme called alkaline phosphatase, can be checked through a test similar to a routine blood draw, making this type of screening preferable to the more expensive and invasive DEXA scan, which measures bone density through a specialized form of X-ray.

Research shows Native American mascots and logos hurt all ethnic groups

A University at Buffalo social psychologist who specializes in the study of prejudice and stigma says that American Indian nicknames and mascots are not neutral symbols, and that their continued use by schools, professional sports teams and other organizations has negative consequences for everyone, not just Native Americans.

Repeated exposure of children to secondhand smoke is child abuse, physician argues

Purposefully and repeatedly exposing children to secondhand smoke—a known human carcinogen—is child abuse, according to an opinion piece written by Adam Goldstein, MD, MPH, a professor in the Department of Family Medicine at the University of North Carolina School of Medicine. Drawing from his experience as a family physician caring for families with children who have suffered severe respiratory illness due to secondhand smoke exposure, Dr. Goldstein says it is time for society—including doctors—to do much more. Dr. Goldstein argues his point in an essay published in the Point/Counterpoint feature in the March/April 2015 issue of Annals of Family Medicine.

Iron and zinc found to be a mood booster for women

Deakin University health researchers have found that increasing iron and zinc intakes can help boost a woman's mood and memory and may be a way to address cognitive decline in old age.

New immunotherapy drug 'fast-tracked' for melanoma patients

A new immunotherapy drug, pembrolizumab, has become the first treatment 'fast-tracked' for NHS patients with advanced melanoma, under a new Government scheme.

NHS stop smoking services continue to save lives

Stop Smoking Services run by the NHS in England saved as many as 18,000 lives in a year, a new report suggests.

Discovery adds health benefits to common Canadian crops

In addition to the nutritional value they already contain, common Canadian crops like canola and flax may soon have cancer-fighting benefits too.

Researchers uncover a new way the body fine-tunes its immune response

Microbiologists at the University of British Columbia have uncovered a novel mechanism that boosts B-cells' sensitivity to extremely small amounts of foreign molecules.

Creating a clean water economy

It's been known since the late 1800s how to stop cholera, a waterborne infectious disease—clean water and safe sanitation are key—but that hasn't stopped it from spreading. In Haiti, more than 8,000 people have already died in a cholera epidemic that started 10 months after the massive 2010 earthquake. The disease was virtually unknown in Haiti until it was inadvertently introduced through the substandard sanitation practices of U.N. troops stationed there. The suffering caused by the disease highlighted a longstanding problem of access to clean water in the country.

Geography matters: Imaging overuse seen in certain US regions

Where you receive medical care impacts many things - including whether or not you receive inappropriate medical tests, according to a new study.

Study examines association of inappropriate prostate, breast cancer imaging

An association of high rates of inappropriate imaging for prostate cancer and breast cancer identified in a study of Medicare beneficiaries suggests that, at the regional level, regional culture and infrastructure could contribute to inappropriate imaging, something policymakers should want to consider as they seek to improve the quality of care and reduce health care spending, according to a study published online by JAMA Oncology.

Germline TP53 mutations in patients with early-onset colorectal cancer

In a group of patients diagnosed with colorectal cancer at 40 or younger, 1.3 percent of the patients carried germline TP53 gene mutations, although none of the patients met the clinical criteria for an inherited cancer syndrome associated with higher lifetime risks of multiple cancers, according to a study published online by JAMA Oncology.

Cochlear implantation improved speech perception, cognitive function in older adults

Cochlear implantation was associated with improved speech perception and cognitive function in adults 65 years or older with profound hearing loss, according to a report published online by JAMA Otolaryngology-Head & Neck Surgery.

Scientists discover why some heart tissue turns into bone

Researchers from the Gladstone Institutes have used human cells to discover how blood flow in the heart protects against the hardening of valves in cardiovascular disease. What's more, they've identified a potential way to correct this process when it goes wrong by flipping the switch on just a handful of genes. These findings may have implications for related conditions, like hardening of the arteries, which causes heart attacks and stroke.

Spatial patterns of brain activity decode what people taste

A team of researchers from the German Institute of Human Nutrition in Potsdam and the Charité University Hospital in Berlin have revealed how taste is encoded in patterns of neural activity in the human brain. Kathrin Ohla, the lead researcher on the team, said: "The ability to taste is crucial for food choice and the formation of food preferences. Impairments in taste perception or hedonic experience of taste can cause deviant eating behavior, and may lead to mal- or supernutrition. Our research aims to extend the understanding of the neuronal mechanisms of taste perception and valuation. This knowledge is essential for the development of strategies to moderate deviant eating behavior." The study was published in Current Biology.

Evidence lacking for PT in patients with venous leg ulcers

(HealthDay)—Further research is needed to understand the role of physical therapy in healing and quality of life (QOL) in patients with venous leg ulcers (VLUs), according to a systematic review published in the March issue of JAMA Dermatology.

Guidelines provided for viscosupplementation in knee OA

(HealthDay)—For patients with knee osteoarthritis, the evidence should be considered before recommending viscosupplementation, according to a case vignette study published in the March 12 issue of the New England Journal of Medicine.

Patients with multiple conditions need early outpatient follow-up

(HealthDay)—The timeliness of outpatient follow-up after discharge matters most for patients with multiple chronic conditions and a greater than 20 percent baseline risk of readmission, according to research published in the March/April issue of the Annals of Family Medicine.

Physicians should plan exit strategy in advance

(HealthDay)—Physicians should begin planning their exit strategy three to five years in advance, according to the American Medical Association.

WHO urges stepped-up battle against hepatitis B

The world can beat the liver-attacking hepatitis B virus, which results in some 650.000 deaths a year, the World Health Organization said Thursday, releasing its first treatment guidelines for the disease.

Genetic test maker 23andMe launches drug R&D effort

Google-backed genetic testing company 23andMe is launching its own drug development unit, betting that it can translate its database of customer DNA information into novel medicines.

Footy knockout sparks lightweight helmet idea

Graeme Attey can remember the moment when he came up with the idea to design a lightweight helmet to protect sportspeople.

As glaucoma cases soar, researchers focus on solutions

Ernest Murry saw glaucoma steal his mother's vision, just as it had robbed sight from many other family members. There was a time when it seemed the same might happen to him. "When I went outside to walk, I would have to pat in front of me to keep from falling," he says.

New study finds levels of TB in Irish travellers three times that of white Irish-born population

A recent study by researchers from the School of Medicine in Trinity College Dublin in conjunction with the Health Protection Surveillance Centre (HPSC) and the Pavee Point Traveller and Roma Centre has found a 3-fold higher rate of Tuberculosis (TB) in Irish Travellers than in the white Irish born population. The findings were recently published in the international journal Epidemiology & Infection (Cambridge University Press).

Low breast density in mammography worsens breast cancer prognosis

Very low mammographic breast density worsens the prognosis of breast cancer, according to a recent study from the University of Eastern Finland. Disease free survivals as well as overall life expectancies were significantly shorter in women with very low-density breasts in comparison to women with high density breast tissue. The lower the breast tissue density, the less fibroglandular tissue there is compared to fat tissue.

'Mind reading' thanks to metaphors

Observe whether two people use metaphors in conversation with each other if you want to guess how close they are as friends. Or sharpen your ability to tune into other people's emotional or mental states by observing the metaphors they use. Why is this? Because metaphors can in fact help one to 'mind read,' report Andrea Bowes and Albert Katz of the University of Ontario in Canada in Springer's journal Memory & Cognition.

Study bolsters 'turbocharged' protein as a promising tool in hemophilia gene therapy

Using gene therapy to produce a mutant human protein with unusually high blood-clotting power, scientists have successfully treated dogs with the bleeding disorder hemophilia, without triggering an unwanted immune response. In addition, the "turbocharged" clotting factor protein eliminated pre-existing antibodies that often weaken conventional treatments for people with hemophilia.

Reaching '80 percent by 2018' would prevent more than 20,000 colorectal cancer deaths per year

Increasing colorectal cancer screening rates to 80% by 2018 would prevent an additional 21,000 colorectal cancer deaths per year by 2030, according to a new study. The study is the first to estimate the public health benefits of increasing screening rates to "80% by 2018," a recent initiative from the National Colorectal Cancer Roundtable (NCCRT), a national coalition of public, private, and voluntary organizations, to aim for screening rates of 80% in the United States by 2018. The study is co-authored by American Cancer Society epidemiologist Ahmedin Jemal and appears in Cancer, a peer-reviewed journal of the American Cancer Society.

New protocol can help emergency departments evaluate patients with acute chest pain

A recently developed risk-evaluation protocol can help hospital emergency department personnel more efficiently determine which patients with acute chest pain can be sent home safely, according to a randomized trial conducted at Wake Forest Baptist Medical Center.

FDA wants more info on scopes linked to "superbug" outbreaks (Update)

Federal health officials issued multiple announcements Thursday aimed at addressing growing safety concerns about medical scopes that have been linked to several recent "superbug" outbreaks.

Raising minimum age to buy cigarettes to at least 21 would reduce smoking and save lives

Increasing the minimum age of legal access (MLA) to tobacco products will prevent or delay initiation of tobacco use by adolescents and young adults, particularly those ages 15 to 17, and improve the health of Americans across the lifespan, says a new report from the Institute of Medicine. The committee that conducted the study estimated the likely reduction in tobacco-use initiation that would be achieved by raising the MLA for tobacco products to either 19 years old, 21 years old, or 25 years, and used two tobacco-use simulation models to quantify the accompanying public health outcomes.

Statin guidelines miss middle-age patients and over-target seniors

The newest guidelines for the use of cholesterol-lowering statins in people at risk of heart disease may be too generic, excluding middle-aged adults who could benefit from the drugs, and over-prescribing in older adults, according to a new study from the Duke Clinical Research Institute.

Age-related discrimination can add to healthcare woes

Being discriminated against by the healthcare profession or system can cause much more than just mere distress to older people. Such experiences can literally be bad for their health. A national survey shows that one in every three older Americans who are on the receiving end of age-related discrimination in the healthcare setting will likely develop new or worsened functional ailments in due course. This follows a study1 led by Stephanie Rogers, a fellow in geriatrics at UC San Francisco in the United States, and published in the Journal of General Internal Medicine2, published by Springer.

Researchers develop database on healthy immune system

An extensive database identifying immune traits, such as how immune cell function is regulated at the genetic level in healthy people, is reported by researchers from the National Institutes of Health (NIH) and their collaborators in the journal Cell. While many genetic risk factors have been linked to various diseases, including autoimmune disorders, how a genetic change causes susceptibility to a disease is not always clear. By studying healthy people, researchers from the National Institute of Allergy and Infectious Diseases (NIAID) Vaccine Research Center, part of the NIH, and colleagues from King's College London have created a reference resource for other scientists.

Largest review of clinical trials to assess risk of patients using Champix

Findings from the largest review of clinical trials to date to determine whether patients prescribed the smoking cessation drug Varenicline (brand name Champix in the UK) are at an increased risk of neuropsychiatric events are published online in the British Medical Journal (BMJ) today. The study was carried out by researchers at the University of Bristol.

Study details microRNA's role as a double agent during Hep C infection

In the battle between a cell and a virus, either side may resort to subterfuge. Molecular messages, which control the cellular machinery both sides need, are vulnerable to interception or forgery. New research at Rockefeller University has revealed the unique twist on just such a strategy deployed by the liver-infecting Hepatitis C virus - one that may help explain the progression of liver disease and that the researchers suspect may be found more widely in the world of disease-causing viruses.

Gene leads to malformation of the urinary tract

An interdisciplinary team of researchers under the direction of the University of Bonn Hospital have discovered a gene which is associated with a rare congenital anomaly of the urinary tract called classic bladder exstrophy. It increases the likelihood that the urinary tract will not form properly during embryonic development. The finding is an important step for understanding the development of urinary tract malformations in general and for developing prophylactic measures. The results are published in the current online edition of the journal PloS Genetics.

Predicting your risk of infection

Research publishing this week in PLOS Computational Biology analyses the livestock trade in Italy and sexual encounters in a Brazilian prostitution service to find a correlation between loyalty and infection risk.

High cholesterol, triglycerides can keep vitamin E from reaching body tissues

In the continuing debate over how much vitamin E is enough, a new study has found that high levels of blood lipids such as cholesterol and triglycerides can keep this essential micronutrient tied up in the blood stream, and prevent vitamin E from reaching the tissues that need it.

Hospital ratings on social media appear to reflect quality of care, study says

Social media has become an important way for institutions to communicate - both sending messages and receiving feedback - with clients and with the general public. Hospitals and other health care organizations use social media for a variety of purposes, but there has been little investigation of whether hospitals ratings that patients and other consumers submit via social media accurately reflect patient satisfaction or the quality of care delivered. A new study published online in the Journal of General Internal Medicine finds a correlation between how hospitals are rated on Facebook's five-star system and how well they performed on a widely-used measure of quality care.

Distinct brain mechanisms related to dental pain relief

Today at the 93rd General Session and Exhibition of the International Association for Dental Research, researcher Michael L. Meier, Center for Dental Medicine, University of Zürich, Switzerland, will present a study titled "Distinct Brain Mechanisms Related to Dental Pain Relief." The IADR General Session is being held in conjunction with the 44th Annual Meeting of the American Association for Dental Research and the 39th Annual Meeting of the Canadian Association for Dental Research.

Study shows why exercise magnifies exhaustion for chronic fatigue syndrome patients

The mechanism that causes high-performance athletes to "feel the burn" turns out to be the culprit in what makes people with chronic fatigue syndrome feel exhausted by the most common daily activities, new University of Florida Health research shows.

In vitro effects of topical neuromodulatory medication on orofacial tissue

Today at the 93rd General Session and Exhibition of the International Association for Dental Research, researcher M.J. Al-Musawi, Newcastle University, Newcastle upon Tyne, UK, will present a study titled "In Vitro Effects of Topical Neuromodulatory Medication on Orofacial Tissue." The IADR General Session is being held in conjunction with the 44th Annual Meeting of the American Association for Dental Research and the 39th Annual Meeting of the Canadian Association for Dental Research.

Boosting a natural protection against Alzheimer's disease

Researchers at the University of California, San Diego School of Medicine have identified a gene variant that may be used to predict people most likely to respond to an investigational therapy under development for Alzheimer's disease (AD). The study, published March 12 in Cell Stem Cell, is based on experiments with cultured neurons derived from adult stem cells.

More americans support vaccines: poll

(HealthDay)—In the wake of the measles outbreak that has generated headlines for months, more Americans now say they have positive feelings toward childhood vaccinations, according to a new HealthDay/Harris Poll.

US doctors, CDC join forces in new diabetes prevention effort

(HealthDay)—Reducing the number of Americans with type 2 diabetes is a new mission shared by the American Medical Association (AMA) and the leading U.S. health agency, officials said Thursday.

Long-term NSAID use beneficial in knee osteoarthritis

(HealthDay)—For patients with knee osteoarthritis, long-term nonsteroidal anti-inflammatory drug (NSAID) use is associated with improvements in symptoms and disease progression, according to a study published in the March issue of Arthritis & Rheumatology.

Single paravertebral blockade seems safe in herpes zoster

(HealthDay)—For patients with acute thoracic herpes zoster (HZ), a single paravertebral blockade seems safe and effective, according to a study published in the March issue of Pain Practice.

Health officials warn of blinding cases of syphilis on West Coast

(HealthDay)—Health care providers on the West Coast need to look out for syphilis that can cause blindness, public health officials say.

E-cigarette advertising makes one crave ... tobacco?

Television advertisements for e-cigarettes may be enticing current and even former tobacco smokers to reach for another cigarette.

Cancer drug promotes regeneration of damaged neurons

Damage to the spinal cord rarely heals because the injured nerve cells fail to regenerate. The regrowth of their long nerve fibers is hindered by scar tissue and molecular processes inside the nerves. An international team of researchers led by DZNE scientists in Bonn now reports in Science that help might be on the way from an unexpected quarter: in animal studies, the cancer drug epothilone reduced the formation of scar tissue in injuries to the spinal cord and stimulated growth in damaged nerve cells. Both promoted neuronal regeneration and improved the animals' motor skills.

German biologist who denies measles virus exists ordered to pay

A German biologist who promised to pay 100,000 euros to anyone who could prove that the measles was indeed a virus was ordered by a court on Thursday to hand over the money.

Depression in dads as well as moms causes anxiety and bad behavior in toddlers

A father's depression during the first years of parenting - as well as a mother's - can put their toddler at risk of developing troubling behaviors such as hitting, lying, anxiety and sadness during a critical time of development, according to a new Northwestern Medicine study.

The origin of the lymphatic vasculature uncovered

In a new study, published in Cell Reports, researchers at Uppsala University describe a novel mechanism by which lymphatic vessels form during embryonic development. The finding may open new possibilities for repairing damaged lymphatic vessels using stem cells.

Health app leads to quicker treatment for therapeutic blood donors

A web-based app designed by Murdoch researchers in conjunction with the Australian Red Cross Blood Service is changing the lives of thousands of patients suffering from iron disorders.

Liver-sparing operation associated with higher survival rates in cancer patients

A surgical approach in which a surgeon removes less than a lobe of the liver in a patient undergoing an operation for liver cancer is associated with lower mortality and complication rates, according to new study results published online as an "article in press" in the Journal of the American College of Surgeons (JACS). The article will appear in print in the April issue of the Journal.

Health law hasn't cut insurers' rate of overhead spending

Despite claims by the Obama administration that the Affordable Care Act will reduce health insurance companies' spending on overhead, thereby channeling a greater share of consumers' premium dollars into actual patient care, insurers' financial filings show the law had no impact on the percentage of insurer expenditures on such things as administration, marketing and profits.

'Low risk' bird flu outbreak at Dutch farm: official

Dutch authorities have identified an outbreak of avian flu in chickens at a farm in the centre of the country that is likely a "low risk" strain, officials said Thursday.

The ACA may reduce ER visits (slightly) but doesn't affect hospitalizations

Two patient groups created by the Affordable Care Act (ACA) - Medicare patients enrolled in federally designated patient-centered medical homes and people under age 26 who are allowed to remain on their parents' health insurance - had slightly fewer emergency department visits than they had before health care reform. However, there was no change in the rate of the most expensive types of emergency visits: those that lead to hospitalization.

Can breastfeeding women have menopause-like symptoms?

After giving birth, a woman's estrogen levels drop to lower than usual levels, and while they return to the normal range relatively quickly among women who are not breastfeeding, this hypoestrogenic state may continue in lactating women and cause menopause-like symptoms. The results of a new study comparing vaginal dryness, hot flashes, and mood changes in women who are or are not breastfeeding 3 and 6 weeks after giving birth are reported in Breastfeeding Medicine, the official journal of the Academy of Breastfeeding Medicine.

Sierra Leone sees worrying spike in Ebola cases over week

Sierra Leone has seen a worrying spike in confirmed Ebola cases over the past week in four districts, the head of the national Ebola response center said Thursday.

Inflammation in the mouth and joints in rheumatoid arthritis

Today at the 93rd General Session and Exhibition of the International Association for Dental Research, researcher Sheila Arvikar, Massachusetts General Hospital, Boston, USA, will present a study titled "Inflammation in the Mouth and Joints in Rheumatoid Arthritis." The IADR General Session is being held in conjunction with the 44th Annual Meeting of the American Association for Dental Research and the 39th Annual Meeting of the Canadian Association for Dental Research.

Chronic kidney disease may increase certain risks during pregnancy

Even mild kidney disease during pregnancy may increase certain risks in the mother and baby, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN). The findings may be helpful for guiding prenatal counseling and for monitoring women during pregnancy.

UN tally of Ebola deaths passes 10,000, most in West Africa

The World Health Organization marked a grim milestone Thursday in the biggest-ever Ebola outbreak, estimating that the virus had killed over 10,000 people, mostly in the West African nations of Guinea, Liberia and Sierra Leone.

Powdered alcohol approved by US regulators

(HealthDay)—U.S. regulators have approved a controversial powdered alcohol product called Palcohol, which is meant to be mixed into drinks.

American Ebola patient to be treated near US capital

An American healthcare worker who has tested positive for Ebola will be treated at a government hospital near the US capital, Washington, officials said Thursday.


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