25 listopada 2014

Fwd: Science X Newsletter Tuesday, Nov 25


---------- Forwarded message ----------
From: Newsletter Phys.org <not-for-reply@physorg.com>
Date: Wed, Nov 26, 2014 at 2:28 AM
Subject: Science X Newsletter Tuesday, Nov 25
To: Pascal Alter <pascal.alter@gmail.com>


Dear Pascal Alter,

Here is your customized Phys.org Newsletter for November 25, 2014:

Spotlight Stories Headlines

- Synthetic biology, genetic engineering and you: Two-component signaling pathways as elements in synthetic circuit design
- Study shows Beijing haze linked directly to gaseous pollutants from traffic, industrial emissions
- Blu-ray disc can be used to improve solar cell performance
- Physicists bind single-atom sheets with the same force geckos use to climb walls
- A hybrid vehicle that delivers DNA
- Vultures evolved an extreme gut to cope with disgusting dietary habits
- Vegetable oil ingredient key to destroying gastric disease bacteria
- A link between DNA transcription and disease-causing expansions
- Sony Pictures network reportedly hit by hackers (Update)
- Another reason to be thankful: Turkeys may be lifesavers
- International team completes genome sequence of centipede
- Mere expectation of treatment can improve brain activity in Parkinson's patients
- Heat-conducting plastic developed
- Building a better battery
- Lazard's numbers show cost-competitive gains for wind, solar

Astronomy & Space news

Searching for alien worlds and gravitational lenses from the Arctic

The quest for optimal sites to carry out astronomical observations has taken scientists to the frigid Arctic. Eric Steinbring, who led a team of National Research Council Canada experts, noted that a high Arctic site can, "offer excellent image quality that is maintained during many clear, calm, dark periods that can last 100 hours or more." The new article by Steinbring and colleagues conveys recent progress made to obtain precise observations from a 600 m high ridge near the Eureka research base on Ellesmere Island, which is located in northern Canada.

Espresso in space

Espresso-loving astronauts, rejoice! You may soon be able to enjoy your beloved beverage in space, thanks to a new cup designed specifically to defy the low-gravity environments encountered aboard the International Space Station (ISS).

Monster telescope needs mind-bending mathematics to uncover secrets of the universe

Telescopes have come a long way since the days when they were all about lone astronomers watching the night sky through their upstairs windows. Today teams of astrophysicists build and use much more modern instruments, not only to observe light visible to our eyes, but also radio emissions from the universe.

A brief history of exo-Earths and the search for life elsewhere

Ever since humans first looked up at the night sky, we have wondered whether we are alone in the universe. Dreams of life beyond Earth pervade literature, TV shows and drive Hollywood blockbusters – but the truth of life beyond the Earth continues to evade us.

Antares rocket failure pushes tiny satellite company to hitch ride with SpaceX

The various companies that had stuff sitting on the failed Orbital Sciences Antares rocket launch last month are busy looking for alternatives. One example is Planet Labs, which is best known for deploying dozens of tiny satellites from the International Space Station this year.

Is Phobos doomed?

"All these worlds are yours except Europa, attempt no landing there."

Iridium flares captured in real time by astrophotographer

There are so many fun sights to see in the sky that are pure astronomical magic. And then there are the spectacular human-created sights. One of those sights is watching satellites from the Iridium constellation that—because of their odd shape—produce spectacular flares that can be brighter than the planet Venus.

Astrophysicist's passion for exotic science inspired 'Interstellar'

It started with a blind date. Theoretical astrophysicist Kip Thorne was a divorced single dad raising a teenage daughter when he got a call in September 1980 from a close friend - fellow scientist Carl Sagan.

Space station's 3-D printer pops out 1st creation

The first 3-D printer in space has popped out its first creation.

NASA's Webb Telescope mirror tripod in action (Video)

Setting up NASA's James Webb Space Telescope's secondary mirror in space will require special arms that resemble a tripod. NASA recently demonstrated that test in a NASA cleanroom and it was documented in a time-lapse video.

ASU joins pathbreaking radio telescope project to study early universe

Arizona State University has joined with 14 other institutions in Australia, India, New Zealand and the United States in a radio telescope project that focuses on the early universe and the birth and formation of the first galaxies.

20,000 meteorites and counting: New book details productive collection program

Meteorites collected from Antarctica provide insight into the universe, help tell the history of the moon and Mars, and hold untold secrets waiting for scientists to decipher.

Medicine & Health news

Why cancer cells grow despite a lack of oxygen

Healthy cells reduce their growth when there is a lack of oxygen (hypoxia). This makes it even more surprising that hypoxia is a characteristic feature of malignant tumours. In two publications in the current edition of the Nature Communications journal, researchers from Goethe University and Justus-Liebig-University of Giessen report on how cancer cells succeed at circumventing the genetic program of growth inhibition.

Providing simple neural signals to brain implants could stand in for body's own feedback system

In new research that brings natural movement by artificial limbs closer to reality, UC San Francisco scientists have shown that monkeys can learn simple brain-stimulation patterns that represent their hand and arm position, and can then make use of this information to precisely execute reaching maneuvers.

Virtual motion, real consequences

Ludwig Maximilian University of Munich researchers have shown that virtual optical stimuli can lead to aftereffects that significantly alter our perception of self-motion. This finding has implications for safe use of emerging technologies such as virtual-reality headsets.

Scientists link gene to tamoxifen-resistant breast cancers

After mining the genetic records of thousands of breast cancer patients, researchers from the Johns Hopkins Kimmel Cancer Center have identified a gene whose presence may explain why some breast cancers are resistant to tamoxifen, a widely used hormone treatment generally used after surgery, radiation and other chemotherapy.

Researchers find brain network link between development, aging and brain disease

(Medical Xpress)—A team of bio-researchers with members from across Europe has found evidence that suggests that grey matter development early in life tends to be the first to regress later in life—related findings also suggest a possible link between brain diseases such as Alzheimer's and schizophrenia. In their paper published in Proceedings of the National Academy of Sciences, the team describes how they came to these conclusions after studying a large number of brain scans.

Missing gene linked to autism

Researchers at the University of Leeds have shed light on a gene mutation linked to autistic traits.

A hybrid vehicle that delivers DNA

A new hybrid vehicle is under development. Its performance isn't measured by the distance it travels, but rather the delivery of its cargo: vaccines that contain genetically engineered DNA to fight HIV, cancer, influenza and other maladies.

Vegetable oil ingredient key to destroying gastric disease bacteria

The bacterium Helicobacter pylori is strongly associated with gastric ulcers and cancer. To combat the infection, researchers at University of California, San Diego School of Medicine and Jacobs School of Engineering developed LipoLLA, a therapeutic nanoparticle that contains linolenic acid, a component in vegetable oils. In mice, LipoLLA was safe and more effective against H. pylori infection than standard antibiotic treatments.

A link between DNA transcription and disease-causing expansions

Researchers in human genetics have known that long nucleotide repeats in DNA lead to instability of the genome and ultimately to human hereditary diseases such Freidreich's ataxia and Huntington's disease.

Mere expectation of treatment can improve brain activity in Parkinson's patients

Learning-related brain activity in Parkinson's patients improves as much in response to a placebo treatment as to real medication, according to a new study by researchers at the University of Colorado Boulder and Columbia University.

Novel type 1 diabetes treatment shown to work on human beta cells transplanted into mice

A chemical produced in the pancreas that prevented and even reversed Type 1 diabetes in mice had the same effect on human beta cells transplanted into mice, new research has found.

Overweight linked to 500,000 cancer cases per year

Overweight and obesity is now causing nearly half a million new cancer cases in adults every year, roughly 3.6 percent of the world's total, a study said Wednesday.

Does a yogurt a day keep diabetes away?

A high intake of yogurt has been found to be associated with a lower risk of developing type 2 diabetes, according to research published in open access journal BMC Medicine. This highlights the importance of having yogurt as part of a healthy diet.

El Nino stunts children's growth in Peru

Extreme weather events, such as El Niño, can have long-lasting effects on health, according to research published in the open access journal Climate Change Responses. The study, in coastal Peru, shows that children born during and after the 1997-98 El Niño have a lower height-for-age than others born before the event.

US orders calorie labeling for fast-food (Update)

The United States on Tuesday announced sweeping new rules forcing chain restaurants and pizza parlors to publish calorie counts on menus in an attempt to combat the nation's obesity epidemic.

Benefits of regular vitamin D tests remain unproven, study says

Experts said Monday regular tests for vitamin D levels are not proven to be beneficial or harmful, despite previous research warning of damaging effects of vitamin D deficiencies in adults.

Researchers identify new ways to drain cancer's 'fuel tank'

Scientists at the University of Manchester have discovered a potential weakness in cancer's ability to return or become resistant to treatment, by targeting the 'fuel' part of stem cells which allows tumours to grow.

Research, food-safety fundamentals guide holiday meal preparations

This is the time of year when we gather to feast on roasted turkey, stuffing and other fixings. For many, it will be the first time they will prepare a holiday dinner, while for others, it will be the latest of many memorable occasions. But those memories should not revolve around foodborne illness, according to a Penn State expert.

Quitting cigarettes tougher for heavy-drinking smokers, but phone counseling can help

Smokers who drink heavily have a tougher time quitting cigarettes than smokers who drink moderately or not at all. However, a multi-center study led by researchers in Yale Cancer Center and Yale School of Medicine found that modifying tobacco-oriented telephone counseling to help hazardous drinkers can help them quit smoking.

Public health interventions required to tackle grim reaper of 'lifestyle' disases

More public health interventions, along the lines of the smoking ban, are needed to tackle Britain's devastating toll of 'lifestyle' diseases, including heart disease and cancer, according to academics.

Genetic test unlocks cause of Brisbane boy's rare disease

Queensland researchers have led an international effort to uncover the gene behind a young Brisbane boy's rare developmental condition, in a discovery his family hopes will pave the way for future treatments.

Powdered measles vaccine found safe in early clinical trials

A measles vaccine made of fine dry powder and delivered with a puff of air triggered no adverse side effects in early human testing and it is likely effective, according to a paper to be published November 28 in the journal Vaccine. The paper is now available online.

Importance of adequate sleep

Catching the appropriate number of z's each night is important.

Help beat Alzheimer's with the click of a mouse

The ambitious MindCrowd project, which includes two UA researchers, aims to gather data from 1 million people across the globe.

Using science to improve interrogations and prevent false confessions

An Iowa State University psychology professor is leading an international research team developing new interrogation methods designed to reduce false confessions and more effectively gather intelligence critical to national security.

Low level drinking in pregnancy not associated with higher risk of poor birth outcomes

Heavy alcohol consumption during pregnancy has long been linked to a range of developmental problems and birth defects including fetal alcohol syndrome (FAS), low birth weight, and preterm delivery, but a new study from Yale and Brown University shows that low to moderate alcohol consumption is not associated with an increased risk of specific birth outcomes and measures of fetal growth.

Researchers identify protein key to the development of blood stem cells

Led by Dr. Hanna Mikkola, a member of the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA scientists have discovered a protein that is integral to the self-replication of hematopoietic stem cells during human development.

Diabetes and Thanksgiving can live in harmony

As you may know, November is National Diabetes Month. If you, a loved one, or a Thanksgiving guest have diabetes or prediabetes, this column is dedicated to you, as you may be wondering how to enjoy one of the most food-laden holidays of the year. Fortunately, you can have your pie and eat it, too.

Researcher examines effect of marital strain on caregivers

Caring for a chronically ill family member can impact the caregiver's physical, biological and mental health, according to assistant professor SunWoo Kang of the South Dakota State University counseling and human development department. She analyzed the selfreported health of married, adult caregivers from the National Survey of Midlife in the United States.

Brain abnormality found in group of SIDS cases

More than 40 percent of infants in a group who died of sudden infant death syndrome (SIDS) were found to have an abnormality in a key part of the brain, researchers report. The abnormality affects the hippocampus, a brain area that influences such functions as breathing, heart rate, and body temperature, via its neurological connections to the brainstem. According to the researchers, supported by the National Institutes of Health, the abnormality was present more often in infants who died of SIDS than in infants whose deaths could be attributed to known causes.

Study reveals new findings about cause of lesions around jaw bone

Osteonecrosis of the jaw is a debilitating and painful condition in which oral lesions develop in individuals taking drugs such as bisphosphonate or denosumab, which are commonly used in treatments for osteoporosis and for cancers that have spread to the bones. Although formally identified in 2003, the fundamental causes for osteonecrosis of the jaw (ONJ) development and its treatment remain unclear. New research provides a better understanding of how ONJ progresses and its cellular and structural activators, which could guide the development of therapeutic and preventive measures.

A new nanomachine shows potential for light-selective gene therapy

Gene therapy has great potential to treat intractable diseases such as cancer, arterial sclerosis, and Parkinson's disease. Successful gene therapy requires a gene vector that can deliver the therapeutic gene selectively to the target site. However, the concern is that conventional gene vectors can cause non-selective transfection to normal organs, whereby genetic material infiltrates healthy cells and leads to unfavorable side effects.

Oral health improves via education

Better integration with primary health care, community outreach programs and culturally appropriate family and community programs could improve Indigenous dental health in Western Australia, research suggests.

Vaccine against bird flu tested in humans

Together with a team at the Erasmus Medical Center in Rotterdam, LMU researchers have developed a candidate vaccine directed against the avian flu virus H5N1 and have now carried out the first tests in humans.

'Dramatic' early phase 1 results for AG-120 in IDH1 mutated AML

Results presented November 19 by University of Colorado Cancer Center investigator Daniel Pollyea, MD, MS, at the 26th European Organisation for Research and Treatment of Cancer Symposium in Barcelona show "extremely promising" early phase 1 clinical trial results for the investigational drug AG-120 against the subset of patients with acute myeloid leukemia (AML) harboring mutations in the gene IDH1. The finding builds on phase 1 results of a related drug, AG-221, against IDH2 mutations, presented at the most recent meeting of the American Association for Cancer Research. The IDH1 mutation is found in 15-20 percent of all cases of AML, totaling about 3,500 cases of IDH1 AML per year.

International team reveals barriers to public health data-sharing; proposes life-saving solutions

Barriers to the sharing of public health data hamper decision-making efforts on local, national and global levels, and stymie attempts to contain emerging global health threats, an international team led by the University of Pittsburgh Graduate School of Public Health announced today.

Psychology professor says social validation, meeting expectations among reasons we overeat on Thanksgiving

Thanksgiving is a time for family, friends and feasting—lots of feasting. So is it any surprise that our eyes always seem to become so much bigger than our stomachs at this time of year?

Problem gambling, personality disorders often go hand in hand

The treatment of people who cannot keep their gambling habits in check is often complicated because they also tend to suffer from personality disorders. So says Meredith Brown of Monash University in Australia, in a review in Springer's Journal of Gambling Studies.

One-two punch of drugs better than either alone against colorectal cancer

Genes make proteins and proteins tell your body's cells what to do: one talks to the next, which talks to the next, and to the next. Like a game of telephone, researchers call these "signaling pathways". Abnormalities in these signaling pathways can cause the growth and survival of cancer cells. Commonly, mutations or rearrangements of genes in the MAPK signaling pathway create cancer's fast growth, and alterations in the PI3K signaling pathway allow cancer cells to survive into virtual immortality.

Study maps how city neighborhoods affect diabetes risk

As the linked epidemics of obesity and diabetes continue to escalate, a staggering one in five U.S. adults is projected to have diabetes by 2050.

Feeling—not being—wealthy drives opposition to wealth redistribution

People's views on income inequality and wealth distribution may have little to do with how much money they have in the bank and a lot to do with how wealthy they feel in comparison to their friends and neighbors, according to new findings published in Psychological Science, a journal of the Association for Psychological Science.

Few operations for epilepsy despite their safety and efficacy

A study at Sahlgrenska Academy, University of Gothenburg, has found that epilepsy surgery is a safe, effective and low-risk procedure. Nevertheless, few Swedes have the operation, and those who are interested may have to wait a long time for presurgical counseling.

Using wash cloths in jails shows promise for reducing costly infections

New research shows providing detainees wash cloths treated with a skin cleanser could reduce the prevalence of Staphylococcus aureus (S. aureus) bacteria in U.S. jails. Researchers looked at the effect on transmission of S. aureus of using wash cloths treated with chlorhexidine gluconate (CHG) compared with wash cloths with only plain water in detainees at Dallas County Jail. The study was published in the December issue of Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America (SHEA).

Superbug in SE Michigan shows recent decline

A new study finds a decrease in an emergent strain of methicillin-resistant S. aureus (MRSA) that is resistant to last line defense antibiotics. Researchers examined the prevalence of vancomycin-resistant Staphylococcus aureus (VRSA) infections in southeastern Michigan, where the majority of these infections have occurred in the U.S. The study is published in the December issue of Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America (SHEA).

Trojan horse tactic gives parasites edge over immune systems

Parasites use Trojan horse subterfuge to suppress the immunity of their victims when causing infection, according to a study.

Team uses e-health records to search for hidden drug benefits

With research and development costs for many drugs reaching well into the billions, pharmaceutical companies want more than ever to determine whether their drugs already at market have any hidden therapeutic benefits that could warrant putting additional indications on the label and increase production.

Researchers shed new light on the genetics of memory performance

In the largest study of the genetics of memory ever undertaken, an international researcher team including scientists from Boston University School of Medicine (BUSM), have discovered two common genetic variants that are believed to be associated with memory performance. The findings, which appear in the journal Biological Psychiatry, are a significant step towards better understanding how memory loss is inherited.

Athletes' testosterone surges not tied to winning, study finds

A higher surge of testosterone in competition, the so-called "winner effect," is not actually related to winning, suggests a new study of intercollegiate cross country runners.

Obstructive sleep apnea treatments may reduce depressive symptoms

Treatment for obstructive sleep apnea with continuous positive airway pressure (CPAP) or mandibular advancement devices (MADs) can lead to modest improvements in depressive symptoms, according to a study published by Marcus Povitz, Carmelle Bolo, and colleagues from University of Calgary, Canada, in this week's PLOS Medicine.

Long-term testosterone therapy does not increase the risk of prostate cancer

Testosterone (T) therapy is routinely used in men with hypogonadism, a condition in which diminished function of the gonads occurs. Although there is no evidence that T therapy increases the risk of prostate cancer (PCa), there are still concerns and a paucity of long-term data. In a new study in The Journal of Urology, investigators examined three parallel, prospective, ongoing, cumulative registry studies of over 1,000 men. Their analysis showed that long-term T therapy in hypogonadal men is safe and does not increase the risk of PCa.

ER visits on the rise, study reports

(HealthDay)—The number of emergency department visits in the United States rose from about 130 million in 2010 to a record 136 million in 2011, according to the U.S. Centers for Disease Control and Prevention.

Profilin can induce severe food-allergic reactions

(HealthDay)—Profilins are complete food allergens in food-allergic patient populations that are exposed to high levels of grass pollen, according to a study published in the December issue of Allergy.

Diagnostic criteria developed for cancer-linked weight loss

(HealthDay)—A grading system has been developed for clinically important weight loss (WL) in patients with cancer, which includes the independent prognostic significance of body mass index (BMI) and percent WL, according to research published online Nov. 24 in the Journal of Clinical Oncology.

Most seniors eligible for statin Rx under new guidelines

(HealthDay)—Most older Americans qualify for treatment with statins under new guidelines for the treatment of blood cholesterol released late last year by the American College of Cardiology and the American Heart Association. The findings appear in a research letter published online Nov. 17 in JAMA Internal Medicine.

Statins not tied to women's gonado-sexual dysfunction

(HealthDay)—Statin use is not associated with higher risk of gonado-sexual dysfunction in women, according to a study published online Nov. 10 in the Journal of Sexual Medicine.

Many not treated according to 2013 cholesterol guidelines

(HealthDay)—Many patients are not being treated in accordance with the 2013 American College of Cardiology/American Heart Association (ACC/AHA) cholesterol guidelines, according to a study published in the Dec. 2 issue of the Journal of the American College of Cardiology.

Reported link between early life exposure to paracetamol and asthma 'overstated'

Respiratory infections are likely to have an influential role, the findings suggest. And the evidence is simply not strong enough to warrant changes to current guidance on the use of this medicine, say the researchers.

New insights into breast cancer spread could yield better tests and treatments

A study combining tumor cells from patients with breast cancer with a laboratory model of blood vessel lining provides the most compelling evidence so far that a specific trio of cells is required for the spread of breast cancer. The findings could lead to better tests for predicting whether a woman's breast cancer will spread and to new anti-cancer therapies. The study, led by researchers at the NCI-designated Albert Einstein Cancer Center and Montefiore Einstein Center for Cancer Care(MECCC), was published online today in Science Signaling.

Study examines FDA influence on design of pivotal drug studies

An examination of the potential interaction between pharmaceutical companies and the U.S. Food and Drug Administration (FDA) to discuss future studies finds that one-quarter of recent new drug approvals occurred without any meeting, and when such meetings occurred, pharmaceutical companies did not comply with one-quarter of the recommendations made by the FDA regarding study design or primary outcome, according to a study in the November 26 issue of JAMA.

Full-day preschool linked with increased school readiness compared with part-day

Children who attended a full-day preschool program had higher scores on measures of school readiness skills (language, math, socio-emotional development, and physical health), increased attendance, and reduced chronic absences compared to children who attended part-day preschool, according to a study in the November 26 issue of JAMA.

Researchers identify protein that predicts post-concussion severity in professional athletes

New Penn Medicine research has found that elevated levels in the blood of the brain-enriched protein calpain-cleaved αII-spectrin N-terminal fragment, known as SNTF, shortly after sports-related concussion can predict the severity of post-concussion symptoms in professional athletes. The complete findings were released today in the Journal of Neurotrauma.

FDA advisory panel says steroid shots for back pain can continue

(HealthDay)—An expert advisory panel to the U.S. Food and Drug Administration decided on Tuesday not to recommend the agency issue a strong warning against the general use of steroid injections for back pain.

Parents need to take lead on teen concussion prevention

(HealthDay)—Parents need to take an active role in protecting their children from sports concussions, an expert warns.

Most Americans with HIV don't have virus under control, CDC says

(HealthDay)—Fewer than one-third of Americans living with HIV had the virus under control in 2011, with many either not receiving regular medical care or unaware they carry the virus, a new U.S. study finds.

Therapy found effective in older, African-American lung cancer patients

University of Cincinnati researchers have found in a phase-2 clinical trial that a Food and Drug Administration-approved therapy could be effective in treating both older and African American patients with advanced lung cancer who may not be candidates for chemotherapy.

Asymptomatic atherosclerosis linked to cognitive impairment

In a study of nearly 2,000 adults, researchers found that a buildup of plaque in the body's major arteries was associated with mild cognitive impairment. Results of the study conducted at the University of Texas (UT) Southwestern Medical Center will be presented next week at the annual meeting of the Radiological Society of North America (RSNA).

New device may ease mammography discomfort

Researchers have developed a new device that may result in more comfortable mammography for women. According to a study being presented next week at the annual meeting of the Radiological Society of North America (RSNA), standardizing the pressure applied in mammography would reduce pain associated with breast compression without sacrificing image quality.

Mexican boy who had massive tumor recovering

An 11-year-old Mexican boy who had pieces of a massive tumor removed and who drew international attention after U.S. officials helped him get treatment in the southwestern U.S. state of New Mexico is still recovering after an 11-hour surgery.

Sky-high abortions in Vietnam as family planning excludes youth

At a small Hanoi cemetery, Nguyen Van Thao opens a fridge and pulls out a bag of bloody foetuses to prepare for burial—a grim reminder that Vietnam has one of the highest abortion rates in the world.

Coordinated emergency response speeds care to heart attack patients

An ambitious, coordinated emergency response effort modeled after a program that began at Duke Medicine to speed up heart attack care has now been applied to more than 23,000 patients in regions across the United States – and it appears to have saved lives.

Leptospirosis video potential lifesaver for farmers

A new video series produced and developed by Massey University researchers may save some of the 100 people each year that are affected by leptospirosis.

Brain scans used to tailor treatment for people recovering from drinking problems

It had been a downward spiral for years, but when Kirk Haakensen found himself utterly alone last Christmas after years of depression and extreme drinking, he decided to take action and the first steps toward a healthier life.

Better assessment of decision-making capacity

Physicians often find it hard to tell if a patient suffering from dementia or depression is capable of making sound judgements. This is shown by a study conducted within the scope of the National Research Programme "End of Life" (NRP 67). The Central Ethics Committee of the Swiss Academy of Medical Sciences now aims to elaborate new assessment principles.

Paying attention to what we cook can help reduce food waste

Americans waste about 35 million tons of food every year—enough, by some estimates, to fill the Rose Bowl every day. Discarding food squanders natural resources and hurts the environment, as rotting food in landfills is a significant source of methane, a potent greenhouse gas. It squanders money, too. An average family of four throws out between $1,500 and $2,400 worth of food annually.

First Italian with Ebola takes trial drug

An Italian doctor battling the deadly Ebola virus on Tuesday began treatment with an experimental drug in Italy's leading hospital for infectious diseases.

Researcher contributes to debate on breast cancer gene screening

There has been much recent debate on the benefits and risks of screening for breast cancer using BRCA1 and BRCA2 mutations in the general adult population. With an estimated 235,000 new breast cancer diagnoses each year in the U.S. and more than 40,000 deaths, it is clearly important to be able to determine which women may be genetically predisposed to breast cancer.

Homeless, mentally ill women face vicious cycle in India

An award-winning study by a Loyola University Chicago Stritch School of Medicine researcher has documented how homeless, mentally ill women in India face a vicious cycle:

New toolkit to aid implementation of fracture liaison services

Health authorities worldwide are coping with rising costs and disability resulting from fragility fractures in the older population. Yet evidence shows that the burden of fragility fractures could be reduced through early identification and treatment of patients who have previously suffered a fracture. Currently, 80% of individuals who experience a fragility fracture are never offered screening and/or treatment for osteoporosis even though they are twice as likely to suffer a fracture in the future.

Doctor behind 'free radical' aging theory dies

Dr. Denham Harman, a renowned scientist who developed the most widely accepted theory on aging that's now used to study cancer, Alzheimer's disease and other illnesses, has died in Nebraska at age 98.

Chinese-built Ebola center dedicated in Liberia

China, one of the first countries to send aid to battle Ebola in West Africa, ramped up the assistance significantly Tuesday by opening a 100-bed treatment center in Liberia as rows of uniformed Chinese army medics stood at attention.

Facing health law hikes, consumers mull options

Consumers across most of America will see their health insurance premiums go up next year for popular plans available through President Barack Obama's health care law.

Sierra Leone Ebola burial teams dump bodies in street

Burial workers in eastern Sierra Leone were sacked Tuesday after snatching Ebola victims from a mortuary and dumping their bodies in the street in a pay dispute.

Ethiopia hopes to set world record for HIV tests

Ethiopia is attempting to set a world record for the number of HIV tests carried out in one day.

Ebola isolation at US base 'pretty much vacation'

With plenty of flat screen TVs, game nights and even an outdoor fire pit, life in isolation for members of the U.S. military who have returned from the Ebola mission in West Africa can look a lot like summer camp.


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