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Tag: "clot" at biology news

Study offers clues to 'Broken Heart Syndrome'

...ole, he said, but it is also possible that a blood clot temporarily blocks a major artery of the heart, then dissolves before being detected during coronary angiography. The most common symptom of broken heart syndrome was chest pain, in 70 percent of patients, followed by shortness of breath in 33 per...

Exploring the molecular origin of blood clot flexibility

...rnal. This knowledge will inform researchers about clot physiology in such conditions as wound healing, st...ch is converted to fibrin during clotting. A blood clot needs to have the right degree of stiffness and plasticity to stem the flow of blood when tissue is ...

Jefferson scientists find high glucose before surgery raises risk of dangerous complications

... (PE), which can cause sudden death, occurs when a clot dislodges from the vein and circulates into the lungs. Each year some 600,000 patients develop PE, which causes or contributes to as many as 200,000 deaths annually in the U.S. He notes that recent studies have begun to show connections between inc...

Cell death following blood 'reflow' injury tracked to natural toxin

...mal mice. After the researchers induced a blood clot injury like a stroke, the same mice showed a 62 percent increase in the area of brain damage compared to normal littermates. Mice that contain more of the PAR-chewing enzyme suffered less brain damage than their normal littermates. To figure out wh...

Scientists work to identify genes that contribute to early heart attack risk

... of fatty deposits in arteries that leads to blood clot formation, angina, heart attack and stroke. This process can begin in childhood and early adult life. Doctors have known that genetic factors contribute to risk for early atherosclerosis but the exact genes involved are not yet known. "We hope th...

Clot-busting drug helps revive cardiac arrest patients

...of a heart attack, coronary heart disease, a blood clot in the lungs, or other causes. The heart stops beating and the brain starts to suffer permanent damage within four to six minutes. Death quickly follows. The standard treatment for cardiac arrest is Advanced Cardiac Life Support (ACLS) measures, wh...

Natural vitamin E tocotrienol reaches blood at protective levels

... related to stroke: They rapidly accumulate when a clot in a vessel stops blood flow to the brain, and play a role in irreversible brain injury. To observe the TCT's effectiveness, rodent neural cells were pretreated with extremely low concentrations of TCT; these cells avoided the cell death associate...

Bubbles go high-tech to fight tumors

...boli---is solid. For instance, it could be a blood clot or a gel of some kind. A major difficulty with these approaches is restricting the emboli to the tumor to minimize destruction of surrounding tissue, without extremely invasive procedures, Bull said. The emboli must be delivered by a catheter placed ...

'Bad' enzymes may wear white hats after stroke

...a temporary loss of blood to the brain caused by a clot or burst blood vessel--MMPs chew up damaged brain tissue. This increases the risk of swelling and hemorrhage in the brain. Some current stroke treatment research seeks ways to inhibit MMPs to minimize their danger ?but this new study shows that a dif...

Promising therapies for haemophilia & heart disease

...rimarily affecting males, where the blood fails to clot causing potentially life-threatening 'bleeds'. About one in 6000 Australian males is born with haemophilia in severe, moderate or mild form. People with haemophilia rely on intravenous infusion of recombinant Factor VIII clotting protein. Professor ...

Redesigned protein accelerates blood clotting

...n, the sticky protein strands that form a web-like clot over damaged tissue. Calcium, a metallic element, must be present for factor VIII to work. Factor VIII has on its surface pocket-like chains of amino acids shaped to hold calcium ions (calcium binding sites). When calcium bonds to it, factor VIII cha...

Gifts from the sea

...horseshoe crab's blood. The crab's amebocyte cells clot in response to bacteria, enabling the development of tools used to test humans, drugs, and sterile environments for toxins. Skate (Raja erinacea): Human retinas have two kinds of light-sensing cells: rods and cones. Skate retinas have only rods--yet...

Unusual antibiotics show promise against deadly 'superbugs'

...ssue. But this property is not always desirable; a clot can be dangerous inside a blood vessel or at certain injury sites, where scar tissue can interfere with the formation of new nerve connections. Modified collagen can follow a different course. In their recent journal paper, Yu and his colleagues rep...

Modified collagen could yield important medical applications

...ssue. But this property is not always desirable; a clot can be dangerous inside a blood vessel or at certain injury sites, where scar tissue can interfere with the formation of new nerve connections. Modified collagen can follow a different course. In their recent journal paper, Yu and his colleagues rep...

Newer imaging techniques may lead to over-treatment

...nical questions such as whether or not every small clot diagnosed with CT warrants the risks of treatment," he said. ...

U-M team recovers ancient whale in Egyptian desert

...ath. In healthy people, cell death subsides when a clot forms, which allows the healing process to begin. Exposing a diabetic's clot-resistant wound to an oxygen-free environment would speed the healing process. While the notion of putting a human or a human organ into an oxygen-free state of biological ...

Buying Time Through Hibernation on Demand

...ath. In healthy people, cell death subsides when a clot forms, which allows the healing process to begin. Exposing a diabetic's clot-resistant wound to an oxygen-free environment would speed the healing process. While the notion of putting a human or a human organ into an oxygen-free state of biological ...

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