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Tag: "clogged" at biology news

Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs

...xercise, theblood vessels dilate (get bigger), but clogged blood vessels constrictduring exercise. In some individuals the vascular system corrects theproblem on its own either by forming new blood vessels, called"collaterals," that bypass the blockages, or by repairing the diseasedblood vessels. This repair...

World's largest rainforest drying experiment completes first phase

...duct water from their roots to their leaves become clogged with water vapor bubbles, restricting their growth for years to come? These are just some of the questions that will be explored during the final two years of this experiment. Collaborating organizations in this effort include IPAM (Instituto de Pes...

Multi-purpose protein regulates new protein synthesis and immune cell development

...ith the folding process, the entire system can get clogged with unfolded proteins. To prevent this, the cell activates the unfolded protein response (UPR). "The UPR has three main aspects," Kaufman explains. "First, it signals the nucleus to stop synthesizing new proteins to give the ER time to catch up. Se...

Life detection instrument passes key test on road to Mars

...ofluidic channels in the capillary disks don't get clogged as readily as they do when used to test samples in Berkeley with its high bioorganic levels. That means they'll need fewer channels on the instrument that travels to Mars, and the scanner used to read out the data needn't be as elaborate. This transl...

'Sinkers' provide missing piece in deep-sea puzzle

...water through both filters, which typically become clogged after about 24 hours of use. At this point the larvacean abandons its house and swims off to create a new one. The cast-off larvacean house eventually deflates like a punctured balloon and sinks rapidly toward the seafloor, carrying large amounts of ...

'Underground' tunnels discovered as means for communication between immune system cells

...ve it, the microscopic bacteria sample somehow got clogged inside the tip, and before Dr. Watkins realized the need to pull away from the cell, he had already given it a jab. "On the screen it looked like flash bulbs going off in a dark concert arena," Dr. Salter recalled of that moment, when to both their ...

Bone marrow cells can become functional gut lining cells

...ose of the pancreas, lungs, and intestines, become clogged with thick mucus. "We hope this finding will have implications for cystic fibrosis, but this is a first step and there are many, many more years of research to be done before we can determine this," said Krause. ...

Engineering the heart piece by piece

...an being replaced every few years. And people with clogged or weak blood vessels might get a new “natural?replacement, instead of a factory-made one. These possibilities are all within reach, and could transform the way heart care is delivered, say University of Michigan Medical School researchers in the ne...

Key found to kill cystic fibrosis superbug

... (CF), an inherited disease where the lungs become clogged with thick mucus, often leading to chronic respiratory infections. The team of researchers has identified a weakness in the armour that protects the B. cenocepacia bacterium from the effects of antibiotics. They hypothesize that preventing the sy...

Tiny clue reveals new path toward heart disease

...es supplying blood to the heart become narrowed or clogged by plaque deposits. Left untreated, the disease can completely block the blood flow to the heart, leading to a heart attack. While risk factors such as smoking, high blood pressure and high cholesterol are known to contribute to coronary artery di...

High-dose anticlotting drug cuts heart attack, death risk in half

...pending on the type of stent used to prop open the clogged coronary artery. To evaluate the effect of the clopidogrel loading dose, researchers from University of Turin and Virginia Commonwealth University, in Richmond, performed a meta-analysis of data from 10 studies involving more than 1,500 patients. ...

Study offers clues to 'Broken Heart Syndrome'

...ip of a catheter, may show whether the patient has clogged arteries or unstable plaques that are not visible on coronary angiography. These findings will help guide long-term treatment. "Because we don't yet know what causes this phenomenon, we don't know what the best long-term management should include...

Students invent protective pouch to enhance cell therapy

...ric metal stents, similar to the ones used to keep clogged blood vessels open. Once the stents are in place, microcapsules filled with helpful cells are injected into the gap between the stents, where they become trapped within the nylon mesh. Blood flowing through the vessel should nourish the encapsulated ...

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