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A neural circuit mechanism involved in preserving the specificity of memories has been identified by investigators from the Massachusetts General Hospital (MGH) Center for Regenerative Medicine and the Harvard Stem Cell Institute (HSCI).

They also identified a genetic “switch” that can slow down #memory generalization — the loss of specific details over time that occurs in both age-related memory impairment and in post-traumatic stress disorder (#PTSD), in which emotions originally produced by traumatic experiences are elicited in response to innocuous cues that have little resemblance to the traumatic memory.

“The circuit mechanism we identified in mice allows us to preserve the precision or the details of memories over the passage of time in adult as well as aged animals,” says Amar Sahay of the MGH Center for #Regenerative Medicine and HSCI, corresponding author of a paper appearing in Nature Medicine. “These findings have implications for the generalization of traumatic memories in PTSD and for memory imprecision in #aging.”

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D rugs to vaccinate everyone over the age of 50 against Alzheimer’s could be available within 10 years, but would cost the NHS £9 billion, a new report has shown.

New analysis commissioned by Alzheimer’s Research UK found that drugs to halt, slow or reverse the disease could be available in as little as three years with major vaccine and screening programmes possible within a decade.

But dementia experts warned that demand from patients would be ‘instant and huge’ and called on the NHS to act now to make sure funds were in place for when the breakthroughs occurred.

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Scientists at Imperial College London are attempting to use powerful lasers turn light into matter, potentially proving the 84-year-old theory known as the Breit-Wheeler process. According to this theory, it is technically possible to turn light into matter by smashing two photons to create a positron and an electron. While previous efforts to achieve this feat have required added high-energy particles, the Imperial scientists believe they have discovered a method that does not need additional energy to function. “This would be a pure demonstration of Einstein’s famous equation that relates energy and mass: E=mc2, which tells us how much energy is produced when matter is turned to energy,” explained Imperial Professor Steven Rose. “What we are doing is the same but backwards: turning photon energy into mass, i.e. m=E/c2.”

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March 20 (UPI) — Scientists believe a new material, known as a scintillator, will expand the search for dark matter.

New analysis suggests the scintillator material is sensitive to dark matter particles with less mass than a proton, which should allow scientists to look for dark matter among a previously unexplored mass range.

Weakly interacting massive particles, or WIMPs, describe dark matter particles with a mass greater than that of a proton. Scientists have tried to directly detect WIMPs using a variety of strategies, but with no success.

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Cancer remains the one counterpoint to the march of medical progress that has scored human history over the last 200 years.

Last year 600,920 people in the U.S. died from cancer, and another 1.7 million received an initial diagnosis of the disease. Globally, one in six people die from cancer, according to the World Health Organization.

In the past decade, research in the field has expanded the possible treatments of the disease from surgery (which was the only option until the 20th century), radiotherapy, chemotherapy and hormonal therapy.

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I would like to share a story. A story about sadness, depression, anger, and frustration. But most of all this is my personal story about triumphing over the death sentence of #cancer. I hope this story will give others who went through and are going through hope for the future.

My story started about 4 years ago on a cold winter day. Up until this point my life seemed invincible. That all changed. At the time I was working at the plasma center and we were preparing for an audit by the FDA. Before an audit we would have the floors waxed and make the center look as nice as possible. A few co-workers and I stayed late to help move the donor beds. I knew I had been feeling pain in my neck/shoulder area for a few weeks so I really didn’t want to. I figured it must have been from repetitive motions at work. I decided to just ignore it and help anyways: this decision changed my life dramatically.

As my coworker and I lifted a donor bed I felt a sharp pain in my neck. I could barely move my arm as it was so excruciating. I couldn’t lift my arm to my chest. I shyly let my manager know that I hurt myself. My manager had me go to Concentra #Health since I was going to be covered under worker’s compensation there. It was there I met Dr. Kreiger, one of the doctors who helped save my life.

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