Category Biology/Biotechnology

Can this Thumb Test tell if you are at increased Risk of a Hidden Aortic Aneurysm?

aorta
Credit: Pixabay/CC0 Public Domain

All the parts of our bodies share an inherent connectivity. This goes much further than “the foot bone’s connected to the … leg bone.” For instance, both hands and feet are connected to a constantly flowing bloodstream, and a nerve network that makes their muscles kick.

So what about the connection recently proposed by some news outlets regarding a simple test involving your palm and thumb? Could it really help diagnose a silent, yet potentially serious problem?

An aneurysm is what we’re referring to here. This is a ballooned segment of an artery—the vessels that supply oxygenated blood to your body tissues. Aneurysms may cause no problems, but if they grow larger, they can weaken, burst and bleed...

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A Common Type of Fiber may Trigger Bowel Inflammation

Micrograph showing inflammation of the large bowel in a case of inflammatory bowel disease. Colonic biopsy. Credit: Wikipedia/CC BY-SA 3.0

Inulin, a type of fiber found in certain plant-based foods and fiber supplements, causes inflammation in the gut and exacerbates inflammatory bowel disease in a preclinical model, according to a new study by Weill Cornell Medicine investigators. The surprising findings could pave the way for therapeutic diets that may help ease symptoms and promote gut health.

The study, published March 20 in the Journal of Experimental Medicine, shows that inulin, which is found in foods such as garlic, leeks and sunchoke, as well as commonly used fiber supplements and foods with added fiber, stimulates microbes in the gut to release bile acids that increase the...

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First Experimental Proof for Brain-like Computer with Water and Salt

First experimental proof for brain-like computer with water and salt
Below shows a graphical representation of the synapse. The synapse consists of colloidal spheres with nano-channels between them. Credit: Utrecht University

Theoretical physicists at Utrecht University, together with experimental physicists at Sogang University in South Korea, have succeeded in building an artificial synapse. This synapse works with water and salt and provides the first evidence that a system using the same medium as our brains can process complex information.

The results appear in the journal Proceedings of the National Academy of Sciences.

In the pursuit of enhancing the energy efficiency of conventional computers, scientists have long turned to the human brain for inspiration. They aim to emulate its extraordinary capacity in various ways.

These efforts hav...

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Brief Anger may Impair Blood Vessel Function

Organs in the body – transparent illustration
Heart disease is the Number 1 killer in the United States.
Brain, right lung, left lung, heart, right kidney, left kidney.
Watch, Learn, and Live Library
copyright American Heart Association

A brief episode of anger triggered by remembering past experiences may negatively impact the blood vessels’ ability to relax, which is essential for proper blood flow, according to new research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

Previous research has found that impairment of blood vessels’ ability to relax may increase the risk of developing atherosclerosis, which may, in turn, increase the risk of heart disease and stroke.

“Impaired vascular functi...

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