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Geneticists have eliminated schizophrenia-like symptoms in mice
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Schizophrenia has a variety of causes and a spectrum of severity of symptoms. Geneticists were able to cause schizophrenia-like symptoms by over-expressing Neuregulin-1 (NRG1). Scientists discovered that these mice not only had nearly the same symptoms as humans with schizophrenia, but they even develop the symptoms at the same stage in life. Geneticists have been able to modify the expression of NRG1 in adult mice, bringing it down to appropriate levels. This caused schizophrenia-like symptoms in these mice to disappear and behavior returned to normal. ...
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2655 |
duddy |
10 years ago |
Does excess mercury cause autism?
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This announcement is the result of over 30 years of extensive research. It was determined that prenatal exposure to low levels of mercury through fish in the mother’s diet or the environment does not contribute to disorders on the Autism spectrum.
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2170 |
duddy |
10 years ago |
Pellagra
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In the early 1900s, the disease pellagra was widespread in the United States, especially in southern states. Individuals with pellagra were weak, and they developed diarrhea, a skin rash, and mental confusion. Each year, thousands of Americans died from this dreaded illness. In 1914 the U.S. surgeon general assigned Joseph Goldberger, a physician who worked in a federal government laboratory, to study pellagra. Most medical experts thought pellagra was an infectious disease because it often occurred where people lived in close quarters, such as prisons, orphanages, and mental health institutions. Goldberger knew from his previous research that infectious diseases usually spread through a population by close physical contact. While investiga ...
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2811 |
savio |
10 years ago |
Do babies learn while they are still in the womb?
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The researchers gave pregnant women a recording of several spoken variations of the made-up word "tatata" to play daily during their last trimester. When tested using EEG sensors after birth, their infants' brains recognised the words and its variations, while the control group did not.
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3522 |
savio |
10 years ago |
How a stent works
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A stent is a small mesh tube that's used to treat narrowed or weakened arteries in the body. Arteries are blood vessels that carry blood away from your heart to other parts of your body. You may have a stent placed in an artery as part of a procedure called angioplasty. Angioplasty restores blood flow through narrowed or blocked arteries. Stents help prevent the arteries from becoming narrowed or blocked again in the months or years after angioplasty.
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3091 |
savio |
10 years ago |
Would you like to try a gluten-free diet or a helminth?
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Parasitologist espouses using parasitic worms for treatment of autoimmune diseases – Dr. Joel Weinstock, at Tufts Medical Center in a commentary piece published in the journal Nature, describes work that he and colleagues have been involved in that focuses on studying the possibility of introducing parasitic worms into the guts of patients suffering from autoimmune diseases such as Crohn's disease. The thinking he says, is that modern hygienic lifestyles may be contributing to such diseases and that reintroducing parasitic worms and perhaps certain bacteria into the gut may restore a natural balance in the gut and relieve patients of such symptoms as chronic diarrhea, bleeding and infections. Source: http://medicalxpress.com/news/2012-11-p ...
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3483 |
duddy |
10 years ago |
Things that happen to spiders while on drugs
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During this experiment, spiders were exposed to a variety of drugs to help determine their effect on the brain. Spiders who had been given marijuana started out well enough, but were unable to maintain focus. Benzedrine (speed) produced spiders who spun enthusiastically, though no great thought or care was put into the web design. Caffeine, one of the most common stimulants taken by humans, produced an erratic web. Chloral hydrate, an ingredient in sleeping pills, made the spiders doze off after barely getting started on the web. Though this 1995 experiment sought to determine toxicity of drugs, it was a continuation of experimentation of spiders on drugs that had started in 1948 by P. N. Witt. ...
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3212 |
duddy |
10 years ago |
The road to a cure for HIV
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A new vaccine has successfully killed the simian immunodeficiency virus (SIV) that causes AIDS in monkeys. It's hoped that with further research, an HIV-form of the vaccine can soon be tested in humans.
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3101 |
savio |
10 years ago |
Who knew chili peppers were good for you
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Exposure to cold and eating chili peppers both appear to increase the activity of brown fat cells, which burn energy, rather than store it as typical "white" fat cells do, a study has found.
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6896 |
duddy |
10 years ago |
Kidney stones suck, and here's why
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This is a scanning electron micrograph of a kidney stone. These stones are pesky formations of calcium that form in the human body and are considered the most common disorder of the urinary tract.
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9128 |
duddy |
9 years ago |
A battery-free pacemaker means less trips to the hospital
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Right now, people with pacemakers need to go into surgery every time the battery dies. But this new pacemaker is based on the mechanics of a self-winding wristwatch, drawing all its power from the patient's beating heart.
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4474 |
duddy |
9 years ago |
Band Aid of the Future
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Being a person that dislikes the smell or sight of blood, it makes me happy to read that a product that could prevent the leakage of blood has been created. The inventors call it "vetigel", but the "Band Aid of the Future" seems to be a better name. This product is a plant based adhesive that can heal wounds and clot blood within seconds. It has a great potential to revolutionize the Emergency Medicine field. "The gel activates blood’s natural clotting process and is made with biocompatible components that can be absorbed directly into the body. By reassembling onto a wound site, VETIGEL mimics the body’s extracellular matrix and accelerates the production of fibrin, which enables the body to clot rapidly." Make sure to watch these videos to ...
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6517 |
ehd123 |
9 years ago |
Cancer, could it be just bad luck?
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In a paper this week in Science, two scientists at John Hopkins have united biology and mathematics to propose a mathematical formula to explain the genesis of cancer. Take the number of cells in an organ, identify what percentage of them are long-lived stem cells, and determine how many times the stem cells divide. With every division, there’s a risk of a cancer-causing mutation in a daughter cell. Thus, Tomasetti and Vogelstein reasoned, the tissues that host the greatest number of stem cell divisions are those most vulnerable to cancer. When Tomasetti crunched the numbers and compared them with actual cancer statistics, he concluded that this theory explained two-thirds of all cancers. “Using the mathematics of evolution, you can really ...
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12522 |
ehd123 |
9 years ago |
Want to get rid of your double chin, now you can without surgery
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An injectable drug, called ATX-101, currently being tested melts away "submental fat", better known as the double chin. According to its makers, ATX-101 can be injected in a clinic and takes just five minutes. It consists of deoxycholic acid, a naturally-occurring molecule that helps us break down fat, which effectively destroys the membranes of fat cells, causing them to burst and then be metabolised by the body. ...
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27569 |
duddy |
9 years ago |
Brain just can't catch a break
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The importance of adequate, non-distracted, deep sleep could not be emphasized enough. Recent research has put the brain yet again under the spotlight, this time only to shed some light on one more reason we should be getting our sleep and why. Make sure to watch the video above. It is hands down, one of the best TED talks I have listened to. As for now, I'mma go make my CSF flush my amyloid betas Nighty, night!
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16413 |
ehd123 |
8 years ago |