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Circulatory in Biological News

Device helps patients survive, regain function til transplant

... of the U-M Cardiovascular Centers Center for circulatory Support. These results suggest it would be a very ... through the clinical trial, the U-M Center for circulatory Support offers the CardioWest temporary total ... and TandemHeart devices that are attached to the circulatory system outside the body, and the Abiomed device. ...

Molecular mechanism of anaphylactic shock decoded

... genes protects mice from the potentially fatal reactions of the immune and circulatory systems (anaphylactic shock) without disrupting circulatory regulation. This paves the way for the development of new drugs for the ...

Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive

... function, including heart rate variability, breathing and blood pressure. These measures, in turn, gave researchers a picture of how the heart, circulatory and respiratory systems were reacting to the pollutants. Results The study found that, particularly among men, exposure to smoke changed ...

Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive

... function, including heart rate variability, breathing and blood pressure. These measures, in turn, gave researchers a picture of how the heart, circulatory and respiratory systems were reacting to the pollutants. Results The study found that, particularly among men, exposure to smoke changed ...

Fish oils reduce greenhouse gas emissions from flatulent cows

... The benefits to animals of omega 3 fatty acids in fish oils have been well documented helping the heart and circulatory system, improving meat quality and reducing methane emissions. These last two benefits may only apply to cows but lowering emissions is important ...

For old or young dialysis patients, AV fistulas remain pure gold

... kidney disease, it doesn't matter if you're young or old: arteriovenous (AV) fistulas remain the gold standard for maintaining access to one's circulatory system to provide life-sustaining dialysis. Interventional radiologists found no difference between the two age groups when it comes to "patency" or ...

Society of Interventional Radiology hosts 34th annual scientific meeting

... The results of a comparison study provide information on how interventional radiologists maintain access to chronic kidney disease patients' circulatory systems to provide life-sustaining dialysisbased on one's age. (Embargoed for release until Tuesday, March 10, 2009, 9 a.m. Eastern) ...

Particulate emission from natural gas burning home appliances

... to assess risk of exposure to organic emissions, which have been associated with increased mortality due to deposition in the lungs, brain, and circulatory system. Patrizia Minutolo, Andrea D'Anna, Mario Commodo, Rocco Pagliara, Giuseppe Toniato, and Claudio Accordini, from Universit Federico II ...

Caltech scientists show function of helical band in heart

... contraction of the heart travels. Their findings were published in the December issue of the American Physiological Society journal, Heart and circulatory Physiology . Since the days of Leonardo da Vinci, observers of the human body have known that the heart's beat is not a simple in-and-out ...

A novel target for therapeutics against Staph infection

... the ClfAFg interaction but do not interfere with the interaction of Fg with the platelet integrin, therefore avoiding unwanted side effects on the circulatory system. ...

Jupiter's shrinking red spot

... Congenital heart diseases affect one percent of newborn babies and babies who are lost in the prenatal period, and the malformation of the circulatory system is responsible for 10 percent of stillbirths. To give scientists new insight into the developing heart, math biologist Laura Miller, an ...

Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25

... Congenital heart diseases affect one percent of newborn babies and babies who are lost in the prenatal period, and the malformation of the circulatory system is responsible for 10 percent of stillbirths. To give scientists new insight into the developing heart, math biologist Laura Miller, an ...

Hypertension develops early, silently, in African-American men

... A. Woods and Bo Fernhall, at the University of Illinois, Urbana-Champaign. The study appears online in the American Journal of Physiology-Heart and circulatory Physiology , published by The American Physiological Society. Dr. Heffernan has since moved to Tufts Medical Center in Boston. Dr. Jae is also ...

UC Davis researchers discover Achilles' heel in pancreatic cancer

... deiminase, an enzyme isolated from a Mycoplasma bacteria. The enzyme was modified by adding polyethylene glycol chains to increase size and circulatory time. The researchers found that exposing the pancreatic cancer cell lines to the modified arginine deiminase enzyme inhibited cancer-cell ...

Biomarkers for identifying infant infections

... researchers have now identified potential biomarkers in the blood that can rapidly identify both the onset of infection and type of microbe. The circulatory system is a major hotbed of immune system activity, so Stephen Kingsmore and colleagues analyzed plasma samples from 107 infected and non-infected ...

Statins may prevent miscarriages

... for understanding chronic inflammatory conditions such as rheumatoid arthritis," said Dr. Girardi. Tissue factor expression on cells that line the circulatory system and certain immune cells is a characteristic feature of acute and chronic inflammation in conditions such as sepsis, atherosclerosis, Crohn's ...

The Rett Syndrome Research Trust launches operations

... disordered breathing, sleep disturbances, severe digestive problems, orthopedic abnormalities, anxiety, apraxia, seizures, impaired cardiac and circulatory function and Parkinsonian tremor. Many children with Rett Syndrome are wheelchair bound. Most victims survive well into adulthood; all require ...

Researchers link cocoa flavanols to improved brain blood flow

... in a test tube, outside of the body. While research aimed at studying the potential role of cocoa flavanols in the context of blood vessel and circulatory function continues, a number of previously published studies already suggest that the consumption of cocoa flavanols can have important beneficial ...

The benefits of green tea in reducing an important risk factor for heart disease

... Prevention and Rehabilitation .1 The study found that the consumption of green tea rapidly improves the function of (endothelial) cells lining the circulatory system; endothelial dysfunction is a key event in the progression of atherosclerosis. The study, performed by Dr Nikolaos Alexopoulos and ...

Natural compounds in cocoa tied to blood flow improvements for adults with type 2 diabetes

... in a test tube, outside of the body. While research aimed at studying the potential role of cocoa flavanols in the context of blood vessel and circulatory function continues, a number of previously published studies already suggest that the consumption of cocoa flavanols can have important beneficial ...

Inflammation triggers cell fusions that could protect neurons, Stanford research shows

... cells expressing green fluorescent protein into an unmodified animal. In parabiosis, two mice are surgically joined in such a way that they share a circulatory system. One mouse had been engineered to express the green protein in all its cells, and one had not. Because the animals shared a blood supply for ...

New study shows low-fat diets more likely to reduce risk of heart disease than low-carb diets

... the arteries) because low-carbohydrate diets often reduce protection of the endothelium, the thin layer of cells that line the blood vessels of the circulatory system. The reduced production from the endothelium of nitric oxide, a specific chemical, puts the vessel at higher risk of abnormal thickening, ...

High blood pressure in older adults traced to gene's effects in blood vessels

... pressure. The disease process eventually makes conditions in vessels ripe for the creation of blockages that can cause heart attacks, strokes and circulatory problems. The finding in a study led by Ohio State University researchers might lead to new therapeutic options for high blood pressure, ...

4 health behaviors can add 14 extra years of life

... from Norfolk, United Kingdom). Between 1993 and 1997, 20,000 men and women between the ages of 45 and 79, none of whom had known cancer or heart or circulatory disease, completed a questionnaire that resulted in a score between 0 and 4. A point was awarded for each of the following: not currently smoking; ...

Mutant gene identified as villain in hardening of the arteries

... by plaque formation. In the vascular wall, Akt plays an important role in regulating the development of endothelial cells, which line the entire circulatory system, from the heart to the smallest capillary. Endothelial cells play an important role in regulating blood pressure, in blood clotting, in plaque ...

MIT works toward engineered blood vessels

... in the human body. The work focuses on vascular tissue, which includes capillaries, the tiniest blood vessels, and is an important part of the circulatory system. The team has created a surface that can serve as a template to grow capillary tubes aligned in a specific direction. The researchers ...

Ozone can affect heavier people more

... responsible for the decline in lung function after ozone exposure with increasing BMI are not clear, although the authors suggest that perhaps circulatory hormones and other inflammatory factors may play a role. These factors have been shown to affect airway hyper-responsiveness and inflammation in ...

'Runner's high' may also strengthen hearts

... that are released during exercise. However, a UI study, which is published in the online edition of the American Journal of Physiology's Heart and circulatory Physiology, suggests that these opioids may also be responsible for some of exercise's cardiovascular benefits. Working with rats, UI researchers ...

Chemical in red wine, fruits and vegetables stops cancer, heart disease, depending on the dose

... tea. At relatively low doses, the French researchers found that the same polyphenols play a beneficial role for those with diseased hearts and circulatory systems by facilitating blood vessel growth. The amount of polyphenols necessary for this effect was found to be the equivalent of only one glass of ...

MIT: blood may help us think

... blood flow in models of information processing in the brain, he asserts. One historical exception is the philosopher Aristotle, who thought the circulatory system was responsible for thoughts and emotions. Perhaps the ancient Greeks were on to something. ...

How 'mother of thousands' makes plantlets

... into new plants. But mother of thousands goes further: the plantlets are complete miniature plants that become disconnected from the mother plant's circulatory system and drop off, allowing them to spread rapidly and effectively. The houseplant has lost the ability to make viable seeds and only reproduces ...

Study finds blocking angiogenesis signaling from inside cell may lead to serious health problems

... the cells that line the inside of blood vessels and form an interface between circulating blood and the vessel wall. Endothelial cells line the circulatory system from the heart to the smallest capillary and reduce friction of the flow of blood. Iruela-Arispe and her team didnt expect to see much of an ...

Researchers show that veins stiffen as we age

... cardiovascular research office. While the arterial side of the human circulatory system has been studied extensively, Farquhar said much less research has ... gets returned to your heart during the vital fluid's journey through your circulatory system. Every minute, the steady beating of that amazing living ...

Heart has enough oxygen to survive hypothermia, CPR crucial

... Writing in the July issue of the American Journal of Physiology-Heart and circulatory Physiology, researchers found no significant difference in the amount of ... appears in the July issue of the American Journal of Physiology-Heart and circulatory Physiology published by the American Physiological Society. ...

Now, self-healing materials can mimic human skin, healing again and again

... human skin by healing itself time after time. The new materials rely upon embedded, three-dimensional microvascular networks that emulate biological circulatory systems. “In the same manner that a cut in the skin triggers blood flow to promote healing, a crack in these new materials will trigger the flow of ...

A genetic 'gang of 4' drives spread of breast cancer

... four abnormal genes affected the metastatic capability of the cells in the lung. They injected cells deficient in the four genes directly into the circulatory system of mice. "When these cells reached the lung capillaries, they just got stuck there," said Massagué. "We concluded that metastatic cells use ...

Cancer-killing invention also harvests stem cells

... stem cells that can be differentiated into other, useful cells. King's team can capture significant amounts of cells of the lymphatic and circulatory systems, and potentially mesenchymal stem cells, which are unspecialized cells that form tissue, bone, and cartilage. Current procedures enable the ...

Flavanols in cocoa may offer benefits to the brain

... function following flavanol rich cocoa consumption are paralleled by an increase in the circulating pool of nitric oxide, a critical molecule in the circulatory system that helps dilate blood vessels and keeps them pliable. Hollenberg fed flavanol-rich cocoa to healthy volunteers who were over age 50 and ...

Lungs try to repair damaged elastic fibers

... key genes to allow the lung to grow new alveoli, he said. Alveoli play a role in the exchange of oxygen and carbon dioxide between the lungs and the circulatory system. A 2-year-old could do it Very young children who suffer lung injuries increase elastin expression and produce new elastic fibers ...
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