Author: Dick Benson

How too much fluoride causes defects in tooth enamel

February 20, 2020

Exposing teeth to excessive fluoride alters calcium signaling, mitochondrial function, and gene expression in the cells forming tooth enamel—a novel explanation for how dental fluorosis, a condition caused by overexposure to fluoride during childhood, arises. The study, led by researchers at NYU College of Dentistry, is published in Science Signaling. Fluoride is a naturally occurring […]

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Binaural beats synchronize brain activity, don’t affect mood

February 20, 2020

An auditory illusion thought to synchronize brain waves and alter mood is no more effective than other sounds, according to research in adults recently published in eNeuro. The effect reported in other studies might be a placebo but could still have helpful effects for some people. Binaural beats are an auditory illusion caused by listening […]

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How the brain’s immune system could be harnessed to improve memory

February 14, 2020

Inflammation can send the brain’s immune cells into damaging hyperdrive, and this has been linked to neurodegenerative diseases that affect memory, like dementia. In the new study, researchers at RMIT found that these same immune cells – known as microglia – can also be activated to have the reverse effect. When the microglia were altered in rats, their performance in simple memory tasks improved by up to 50%, rather […]

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New glaucoma test to help prevent blindness

February 14, 2020

Researchers have identified 107 genes that increase a person’s risk of developing the eye disease glaucoma, and now developed a genetic test to detect those at risk of going blind from it. The research, led by Flinders University and QIMR Berghofer Medical Research Institute, has been published in the international Nature Genetics journal. In a […]

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Researchers uncover the genomics of health

February 14, 2020

Most diseases have a genetic component. To better understand disease, researchers led by the Garvan Institute of Medical Research are analysing genetic information to determine what keeps us healthy. In a world first, the team has compiled a genome reference database of thousands of healthy older Australians, which has the potential to predict disease-linked gene […]

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Scientists develop non-invasive method to predict onset of dementia

February 14, 2020

Information gathered from routine visits to the doctor is enough to accurately predict a person’s risk of developing Alzheimer’s disease and related dementias, according to new research led by scientists from Regenstrief Institute, Indiana University and Merck. The researchers developed and tested machine learning algorithms using data from electronic medical records to identify patients who […]

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New study adds to evidence of diabetes drug link to heart problems

February 7, 2020

A new study published by The BMJ today adds to evidence that rosiglitazone – a drug used to treat type 2 diabetes – is associated with an increased risk of heart problems, especially heart failure. This study is the most comprehensive evaluation of the cardiovascular risk of rosiglitazone ever done. Rosiglitazone belongs to a class […]

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Lower protein diet may lessen risk for cardiovascular disease

February 6, 2020

A plant-based diet may be key to lowering risk for heart disease. Penn State researchers determined that diets with reduced sulfur amino acids — which occur in protein-rich foods, such as meats, dairy, nuts and soy — were associated with a decreased risk for cardiovascular disease. The team also found that the average American consumes […]

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New target identified for repairing the heart after heart attack

February 6, 2020

Billions of cardiac muscle cells are lost during a heart attack. The human heart cannot replenish these lost cells, so the default mechanism of repair is to form a cardiac scar. While this scar works well initially to avoid ventricular rupture, the scar is permanent, so it will eventually lead to heart failure and the […]

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Molecular ‘switch’ reverses chronic inflammation and aging

February 6, 2020

Chronic inflammation, which results when old age, stress or environmental toxins keep the body’s immune system in overdrive, can contribute to a variety of devastating diseases, from Alzheimer’s and Parkinson’s to diabetes and cancer. Now, scientists at the University of California, Berkeley, have identified a molecular “switch” that controls the immune machinery responsible for chronic […]

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