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Harmful Metals Found in Vapors From Tank-Style Electronic Cigarettes

Sep 30, 2019
University of California - Riverside

"Concentrations of the metals, such as lead, in the aerosols increased with more voltage," Williams said. "Concentrations of some elements – chromium, lead, and nickel – were high enough to be a health concern. We found the concentrations of chromium, copper, lead, nickel, and zinc exceeded the proposed permissible exposure limit from the Occupational Safety and Health Administration."

RIVERSIDE, Calif. – A team of scientists at the University of California, Riverside, has found the concentration of metals in electronic cigarette aerosols – or vapor – has increased since tank-style electronic cigarettes were introduced in 2013.

Electronic cigarettes, which consist of a battery, atomizing unit, and refill fluid, are now available in new tank-style designs, equipped with more powerful batteries and larger capacity reservoirs for storing more refill fluid. But the high-power batteries and atomizers used in these new styles can alter the metal concentrations that transfer into the aerosol...



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Breast Cancer Preventative Care: Breast Density — Separating Myth From Fact

Sep 30, 2019
Penn State Health Medical Minute

While fatty tissue appears grey on a mammogram, dense tissue appears white. Some cancer lesions also appear white on a mammogram. "Therefore, high levels of dense tissue in some women may mask a cancer lesion on a mammogram," Sivarajah said.

Newswise — Mammograms remain the gold standard for detecting breast cancer in its earliest stages, potentially saving lives. So, why do some women receive a letter after a negative mammogram – meaning there's no sign of cancer – asking them to consider additional tests?

The answer, according to Dr. Rebecca Sivarajah, a specialist in breast imaging with Penn State Health, boils down to the type of tissue in a woman's breasts. "Most breasts include both fatty tissue and the fibroglandular, or dense, tissue," she said.

While fatty tissue appears grey on a mammogram, dense tissue appears white. Some cancer lesions also appear white on a mammogram...



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'The Most Important Way to Prevent Disease, Including Cancer': A Dose of Good Bacteria a Day Keeps the Doctor Away

Sep 30, 2019
Lorie Johnson

The walls of a healthy gut are semi-permeable. They are made up of tiny holes like a fine mesh strainer. These tiny holes allow vital nutrients to flow from the gut into the bloodstream and ultimately other parts of our body.

Today's leading health experts recommend putting lots of good bacteria in our gut in the form of probiotic foods like yogurt and kimchi. They also advise consuming pre-biotic fiber, like vegetables to help keep the bacteria thriving. Finally, they warn against taking antibiotics and eating processed foods, which can reduce the good bacteria in our intestines.

A growing number of doctors tell their patients by following this plan, they can prevent our scariest diseases like cancer and Alzheimer's as well as our everyday aches and pains like bloating and diarrhea.

Bacteria: The Master Key to Our Cells

Medical researchers spend countless hours and dollars discovering all kinds of secrets to a longer, better life. Dr...



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Research Shows Music Aids Memory Performance in Older Adults and Patients With Alzheimer's Disease

Sep 29, 2019
Texas State University

For this year's World Alzheimers Day, Dr. Deason from Texas State University, reflects on how aging and disease affects the human mind, particularly in older adults.

For this year's World Alzheimers Day, Dr. Deason from Texas State University, reflects on how aging and disease affects the human mind, particularly in older adults.

Who: Dr. Rebecca Deason, Associate Professor of Psychology at Texas State, investigates how we learn and remember items and how memory is changed by aging and disease.

Dr. Deason has researched memory of words, pictures, and music in young adults, healthy, older adults, and patients with Alzheimer's Disease (AD) to find ways to enhance and maintain cognition throughout the lifespan. Dr. Deason believes changes in cognition with age is an important issue as the population itself ages. Interventions to increase the chances of healthy aging or to improve the lives of those suffering from age-related diseases such as AD are desirable and currently a focus of much scientific work...



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Why Immunotherapy fails 60% of Metastatic Melanoma Patients

Sep 29, 2019
Brian Blum

The ultimate goal is to improve personalized medicine. "Can we predict who will respond?" asks Markel. "Can we alter treatment in order to increase responses?"

Immunotherapy has transformed the treatment of many cancers, turning them from incurable to manageable as a kind of chronic illness.

But not metastatic melanoma. More than half of patients (some 60 percent) with the disease do not respond to immunotherapy treatments.

Researchers at Tel Aviv University's Sackler School of Medicine and Sheba Medical Center's Ella Lemelbaum Institute for Immuno-Oncology wanted to know why.

The researchers reviewed the results of 116 melanoma patients treated with immunotherapy. Using a protein mapping technique called proteomics, the researchers discovered a difference in the metabolism, or energy production process, between melanoma patients for whom immunotherapy worked, and those whose cancer proved resistant.

Prof...



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Saving Lives Faster: World-First Laser Incubator for Blood

Sep 28, 2019
Monash University

Researchers have developed the world's first blood incubator using laser technology. This could prevent fatal blood transfusions in critically ill patients, and can detect antibodies in pregnant women that can kill a baby in utero.

According to results published in Nature's Scientific Reports, these findings could bring pre-transfusion testing out of the pathology lab to point-of-care, with blood incubation time slashed to just 40 seconds, compared with the industry gold standard of five minutes.

This breakthrough has the potential to improve the pre-transfusion testing of millions of patients undergoing blood transfusions across the world, especially those having major surgery, going into labour, or causalities of mass trauma and individual trauma.

The detection of immunoglobulin G (IgG) antibodies requires incubation at 37°C, often for up to 15 minutes. But current incubation technology relies on slow thermal procedures, such as heating blocks and hot-water baths...



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5 Neuromyths About the Brain

Sep 28, 2019
Dr. Caroline Leaf

You are a complex, dynamic being whose ability to think is a veritable universe, not a singular style. We should not approach learning with the preconception that there is "thinking inside the box" learning and "thinking outside the box" learning.

In recent years, neuroscience has become very popular. It is almost as though adding the prefix "neuro," as in neuro-education, neuro-leadership, neuro-spirituality and so on, gives the method, course, program, or book more clout, thereby increasing its credibility.

With so many articles on how the brain works, and so many programs promising to boost brain function, it can be confusing to know just what to believe when it comes to thinking and learning...



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Neurons Promote Growth of Brain Tumor Cells

Sep 27, 2019
German Cancer Research Center

Glioblastomas invade the healthy brain in a diffuse pattern like a fungal network. As a result, they cannot be completely removed by surgery, and they also survive intensive chemotherapy and radiotherapy. Glioblastomas are thus among the most dangerous tumors in humans; the average survival time is 15 months following the initial diagnosis.

Joint press release by Heidelberg University Hospital and the German Cancer Research Center

In a current paper published in the journal "Nature", Heidelberg-based researchers and physicians describe how neurons in the brain establish contact with aggressive glioblastomas and thus promote tumor growth / New tumor activation mechanism provides starting points for clinical trials

Neurons transmit their signals to each other via synapses, fine cell projections with terminals that contact another neuron...



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What You Eat May Change the Way That Antibiotics Affect Your Gut

Sep 27, 2019
Sally Robertson, B.Sc.

"Doctors now know that each antibiotic prescription has the potential to lead to some very harmful microbiome-related health outcomes, but they do not have reliable tools to protect this critical community while also treating deadly infections."

A new study by researchers at Brown University in Rhode Island has found that diet can influence how the gut microbiome is affected by treatment with antibiotics. The scientists examined how antibiotics change the gut bacteria in mice and then looked at how diet may exacerbate or mitigate these changes.

"For a long time, we've known that antibiotics impact the microbiome," says study author Peter Belenky. "We have also known that diet impacts the microbiome. This is the first paper that brings those two facts together."

Belenky says the goal of his laboratory's work is to identify new ways to protect the microbiome, which may alleviate some of the worst antibiotic side effects...



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