pressure 2 8

Tag: "pressure" at biology news

Active ingredient in common Chinese herb shown to reduce hypertension

...illion Americans have hypertension, that is, blood pressure measuring above the normal range (less than 120/80...are prescribed. Many patients with high blood pressure have sought relief from complementary and alternative medicine (CAM). In so doing, many have consume...

Researchers discover surprising drug that blocks malaria

...ll. But researchers have found that a common blood pressure medication ?propranolol ?jams the signal to preven...at acts on a person's red blood cells as the blood pressure medication does, Haldar said. When Haldar and her colleagues tested propranolol in combination wi...

Eating less salt could prevent cardiovascular disease

... All the participants had high-normal blood pressure (pre-hypertension). They were therefore at greater risk of developing cardiovascular disease. 744 people took part in the first Trial of Hypertension Prevention which was completed in 1990, 2382 in the second, which ended in 1995. In both trials part...

Twin studies reveal genetic components leading to cardiac and kidney disease

...e death. The study shows that both elevated blood pressure and changes to the kidney’s filters are caused by genetic variation at multiple points along the adrenergic pathway. Links between adrenergic activity and renal injury could lead to novel approaches to predicting, preventing, diagnosing and treating...

Natural gut hormone offers hope for new obesity drug

...period are safe. It does not appear to raise blood pressure or heart rate, or any other obvious side effects." With funding from the Seeding Drug Discovery initiative, Professor Bloom and colleague Dr Caroline Small hope to develop a synthetic form of PP which can be administered to patients. "The trouble...

Study identifies risk factors for spread of respiratory infections in hospitals

...low rate oxygen masks and bi-level positive airway pressure ventilation, increased the risk of the spread of S...fety of high flow rate oxygen therapy and positive pressure ventilation in medical facilities and effective ways of ventilating hospitals and clinics to avoid s...

Putting an old drug to a new use

...pound that was frequently used to treat high blood pressure can reverse iron overload in mouse models and has the potential to treat similar conditions in humans. Our body needs most of its iron to make red blood cells. A lack of the metal can lead to dangerous anemias, but also too much iron can be detrimen...

Fighting to keep Darwin in the classroom

...lp science educators fight back against the strong pressure creationists are exerting on public education. In the new journal Outreach and Education in Evolution, to be published by Springer starting in March 2008, editors-in-chief Niles and Greg Eldredge intend to fill the gap between scientific literature ...

Blame the brain for high blood pressure

...he controversial idea that one cause of high blood pressure lies within the brain, and not the heart or blood ...he brain. This has led to the idea that high blood pressure ?hypertension ? is an inflammatory vascular disease of the brain. One in three people in the UK a...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...anana-like scents, and mechanical stimuli, that is pressure carried by air flow to the nostrils while breathin...r reaction in the olfactory neurons. By decreasing pressure of the non-odor solution, they also found that the reaction in the olfactory neurons was less, confi...

Smell may outlast other senses

...y increases with age.? Anticholesterol and blood pressure lowering medications were amongst the common drugs known to interfere with smell. Conditions such as Parkinson’s disease and Alzheimer’s disease were also associated with impairment in the sense of smell, she said. Dr Johnston said the ability to...

Robotic exoskeleton replaces muscle work

...l from the (wearer's) muscle, it increases the air pressure into the artificial muscle on the brace," Ferris said. "Essentially the artificial muscle contracts with the person's muscle." Initially the wearer's gait was disrupted because the mechanical power added by the exoskeleton made the muscle stronge...

It's OK for men with high blood pressure to have a drink or two, new study finds

...Follow-Up Study. It found that men with high blood pressure can have one or two drinks a day without increasin...ption of more than three drinks a day raises blood pressure and risk of hypertension, "so our findings are not a license for men with hypertension to overindulg...

2 brains -- 1 thought

...rn - are already well-understood. Has evolutionary pressure kept the structural complexity of such networks to a minimum - or could there have been other networks with an even simpler structure, yet possessing the same dynamics? Is it possible that many more networks fulfilling the same functional and structu...

Studies force new view on biology of flavonoids

...laxed, preventing inflammation, and lowering blood pressure ?all key goals in prevention of heart disease. Both of these protective mechanisms could be long-lasting compared to antioxidants, which are more readily used up during their free radical scavenging activity and require constant replenishment thro...

Peanut allergies overstated, study finds

...clude variables such as the equipment used and the pressure administered by the practitioner during a skin prick test. "There is a population of children who have never eaten peanuts ?or worse, those that eat them everyday, then have a positive peanut skin test and are told not to eat them," said Dr Wainst...

Scientists seek useful traits in wild cottons

...th herbicide. "This produces massive thrips pressure on the cotton plants, and results in a lot of damage to those first four true seedling leaves," he said. "We measure the leaf damage, identify cottons that show thrips resistance and subject those to further tests." Sheehan raises Lygus bugs...

Female-led infanticide in wild chimpanzees

...hic shifts that alter sex ratios and put increased pressure on females competing for foraging areas. In their report, the authors note that the Sonso community had experienced a significant population increase in the ten years prior to the infanticide observations (42 individuals in 1996 to 75 in 2006), and t...

Palau's coral reefs show differential habitat recovery following the 1998 bleaching event

...eefs by adapting human behavior and reducing local pressure on reefs; this research provides encouragement and incentive for local management. "Clearly, action is required at both ends of the political spectrum ?both globally to reduce greenhouse emissions, but also locally to enhance reef re...

HIV survival improves if patients stay in care

...opulation different from those who have high blood pressure or adult-onset diabetes. "These patients often have a lot of other things going on. They are young. Often, they face challenges of substance abuse, mental health problems and financial issues. Now they have to stay in care the rest of their live...

1 2 3 4 5 6 7 8 9