Tag: "heart" at biology news

Researchers Identify Protein Critical To Urine Concentration

...tention, or refractory edema, including congestive heart failure and cirrhosis, said the researchers. "If we could inhibit the water channel with drugs," says A.S. Verkman, MD, PhD, UCSF professor of medicine and physiology, "then problems of fluid retention could be effectively treated where conventional...

High Blood Pressure Caused By Salt Retention May Be Related To Oncogenes Implicated In Cancer

... 62 million Americans and is anunderlying cause of heart attacks, heart failure and strokes, as well as kidneyfailure. Some people have a specific, genetic abnormality that...

Fat Is Back, Healthy Diets Need Fat

...turated fat and yet the French have fewer cases of heart disease and are less obese than Americans. The consumption of fat in the French diet was balanced by greater dietary diversity and variety. "The low-fat approach is very good, but not if it comes at the expense of dietary variety," Drewnowski said. ...

Biochemist Solves Riddle Of Collagen Stability

...ossible, Raines said. Collagen breakdown is at the heart of many serious diseases, such as arthritis, rheum...are also looking at collagen as a raw material for heart valve or vessel repair, in reconstructing damaged cartilage or ligaments, and for corneal grafts. I...

Duke Researchers Genetically Engineer Mice To Block Heart Enlargement

...cts as a molecular decoyto stop enlargement of the heart -- a primary step to heart failure. The decoy mimics a small portion of a protein called Gq, a molecularswitch that cau...

Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells

...ination, part of the cell-development cycle at the heart of heredity during which a chromosome that has split is rejoined to itself or another chromosome. The UW researchers have been motivated by an intrinsic interest in this powerful, fundamental complex, which may also be essential to the development of...

Weary Tibetan People Find Supporting Hand In ASU Graduate Student

...brain concentrates on the answers of tomorrow, his heart cannot forget what he sees today. "The family that sticks out most strongly in my mind is the family of seven people who lost all 34 of their yak and decided to sell their tent in order to buy five yak from their neighbors," Foggin says through E-ma...

Structure Of The Plasma Membrane Proton Pump Offers A First Glimpse Of The Mechanism Of Ion Pumping Across Membranes

...rnal pH. Similar proteins control the heart rhythm, the action potential of nerve cells, and muscle contraction. All these ion pumps work in the same way as the proton ATPase and are likely to have similar structures. Manfred Auer and Werner Khlbrandt of the Depart...

Aspirin's Preventive Action In Heart Attacks Tied To Genetics

...le aspirinuse protects some people from developing heart attackshave traced the mechanism back to a specifi...ould be used to determine which people at risk for heart attacksand heart disease might benefit mostly from daily doses ofaspirin and which people might need...

Early Restoration Of Blood Flow Following A Heart Attack Shown To Improve Long-Term Survival For Patients

...ately restoring blood flow to the heartfollowing a heart attack provides a short-term benefit, this study i...ntage," theauthors write. Most people who die of a heart attack do so in the first 24 hours. Immediaterestoration of blood flow to the heart after a heart a...

Bears Cubed: Virginia Tech Studies Three Bears, And Three Bears, And Three More Bears

...while denning. What is so incredible is that their heart rate and bodytemperature drop only slightly. And they are not in a deep sleep -- they can beup instantly. Rule number one when trekking in the wilderness: never come between a sow andher cubs. Rule number two: if you encounter a bear and see or hear ...

New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance

... cardiovascular disease than whites. Malesdie from heart attacks far more often than females. Women suffer ...mall pieces of left-oversaphenous vein tissue from heart bypass surgeries, they compared the veins ofwhite men and women and discovered a startling differenc...

Research Sheds Light On How Plants Regulate Distribution Of Nutrients

CHAMPAIGN, Ill. -- In humans, the heart is the mechanical pump that circulatesthe blood of...and directs wherelife-giving resources go. At the heart of the findings, published in the April 14 issue of theProceedings of the National Academy of Scienc...

Ulcer-Causing Bacteria Also May Be Associated With Heart Disease

...h stomach ulcers could be a contributing factor to heart disease,according to a report in today's Circulati...-- known as Helicobacter pylori (h. pylori) -- and heart diseaseappeared to depend on the strength, or virulent nature, of the bacteria strain.In their study...

Breakthrough: Scientists Create 3-D Map Of Cell Membrane Ion Pump At Near Atomic Resolution

... of membraneproteins that regulate blood pressure, heart function, nerve conduction and acidsecretion." A report on the findings just appeared in Nature, the top Britishbiological journal. Besides Scarborough, authors are Dr. Manfred Auer and WernerKuhlbrandt of the Max Planck Institute for Biophys...

Health Effects Of Consuming Alcohol, Dairy Foods, And Iron-Fortified Products ToBe Debated

...inedalong with risk of obesity, breast cancer, and heart disease, areas of greatestresearch. National health recommendations will be debated, weighing thepossible benefits of alcohol consumption against its potential for abuse. "The Role of Dairy Foods in Reducing the Risk of Colon Cancer" (Sessi...

New Airway's 'Smarts' Ensure That Patients Get Plenty Of Oxygen

...rupture, airway trauma, irreversible damage to the heart orbrain, or even death. The new endotracheal tube sidesteps these perils with"smarts" derived from ultrasound transducers smaller than apencil's eraser -- miniature versions of the transducers inultrasound scanners currently used by doctors to m...

The Distinctive Sound Of Cholesterol

...stening to the sounds made by the blood. When the heart pumps blood, velocity is high (systolic cycle) and...e artery is clean, there is no turbulence when the heart does not pump (diastolic cycle), and when the velocity of blood is low. But when cholesterol deposit...

ACE Gene Linked To High Blood Pressure In Men But Not Women

... inmen. Untreated high blood pressure can lead to heart disease, stroke and kidneyfailure. The cause of t...keep blood pressure normal and is also involved in heart muscle and blood vesselgrowth. While previous research has found that people who carry a certain gen...

Cholesterol Lowering Drugs Stall Disease Progression In People With Below-Average Blood Cholesterol Level

... bloodvessel deposits that block blood flow to the heart and cause a heart attack. "We were able to demonstrate a profound effect on the atheroscleroticdisease process...

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