Tag: "pressure" at biology news
New robotic microarray technology finds novel genes involved in cardiac hypertrophy and recovery
..."You can treat high blood pressure, and when blood pressure
goes down, hypertrophy may or may not regress completely. Patients might benefit if we could treat it directly." To understand the relationship of genes involved in all phases of hypertrophy and regression, Bristow and Friddle applied the microarray...
Virtual reality tool quantifies physics of a doctor's touch
...erstanding of the physics behind what happens when pressure
is applied to different parts of the human body. ...uld provide the student with the proper tactile or pressure
feedback, felt through the haptic interface. Kesavadas estimates the research team could develop su...
June 'Geology' and 'GSA Today' highlights
...ers), can produce a special set of temperature and pressure
conditions allowing the direct melting of hydrous (water bearing) minerals in the downgoing oceanic plate. Ten "flat slab" zones have been identified worldwide. Eight of these are associated with modern or young (< 3 million year old) adakites. T...
Just-published research shows for the first time that Lyme Disease bacterium does not require iron to infect host
...to need iron. On the other hand, natural selection pressure
on the entire genome clearly made it possible for Borrelia to exist without iron, though why remains unclear. The studies in Gherardini's lab were helped immeasurably by the fact that the genome for Borrelia burgdorferi has been completed, so scient...
Novel resuscitative fluid developed at University of Pittsburgh shows promise in animal studies
... improvement and all suffered fatal drops in blood pressure
and blood flow within one hour. In contrast, the animals treated with HemoMax were all hemodynamically stabilized within minutes and survived. Their tissues received adequate blood supply, Dr. Kameneva noted. While worldwide shortages of donor bloo...
Stanford study supports novel rainforest protection plan
...al Park project in favor of a logging company, but pressure
from conservationists and diplomats helped persuade the government to reject the loggers' proposals. "Without this pressure," write the authors, "the Masoala Peninsula, one of Madagascar's most import reservoirs of biodiversity, would perhaps have ...
A fly's eye view
...is critical to the brain, there is an evolutionary pressure
on the brain to use energy efficiently. Professor Laughlin said: "Understanding the relationship between energy and information processing could have far-reaching implications. "If we can understand which processes in the human brain consume the mos...
More tolerable treatment for severe, obstructive sleep apnea around the world
... most common therapy is continuous positive airway pressure
(CPAP). CPAP, used during sleep, pr... delivery device that monitored tracheal pressure
and varied the flow of air appropriately. Patients hooked up to a computer running th...
Virus linked to Kaposi's sarcoma sabotages immune system with a new and unusual strategy
...ry new strategy for host defense comes a selective pressure
for the virus to find a way to circumvent that defense." The research describing the KS virus genes and their function in immune sabotage is published in the current issue of the Proceedings of the National Academy of Sciences. First author is Laur...
Genetic cause of lymphedema discovered by University of Pittsburgh researchers reported in Nature Genetics
...times cancer. Current treatments involve applying pressure
to drain the lymph fluid. An intricate series of fine tubes and nodes stretching throughout the body, the lymph system performs the mundane but critical task of mopping up excess fluid as well as molecules and cells that stray from nearby blood vesse...
Research to give authorities new tool in tracking terrorists
...echnique improves on this method using atmospheric pressure
ionization -- mass spectometry to detect and identify the explosives. When coupled with liquid chromatography, the result is a highly sensitive and selective analytical technique, McClellan and Yinon said. "I wouldn't use the word 'breakthrough,' bu...
Do fish farms really add to the world's supply of fish?
...rs. While many people believe such growth relieves pressure
on ocean fisheries, the opposite is true for some ...ease in the demand for fishmeal, putting even more pressure
on herring and other ocean fisheries. Indirect costs In addition to depleting wild fish populations,...
Frequent pressure shifts increase risk of blindness in glaucoma patients
alone not the only risk June 29, 2000 -- The more eye pressure
fluctuates during the day, the higher the risk that a glaucoma patient will lose vision, according t...
Improving preventative care for coronary bypass patients
...tient's risk factors such as smoking status, blood pressure
and cholesterol concentration. In general, the sta...y all patients were taking aspirin, had good blood pressure
control and only 10% still smoked, following their operation. However, the authors found that patien...
Yale scientists identify genetic form of hypertension in pregnant women
...estriction in selected groups of women whose blood pressure
rises with pregnancy," said Lifton....
Exercise and weight loss effective in reducing high blood pressure for overweight individuals
...ht men and women with unmediated high normal blood pressure
or stage 1 to 2 hypertension. They were randomly assigned to aerobic exercise only; a behavioral weight management program, including exercise; or a waiting list control group. "Combining a program of exercise and weight loss is recommended for the ...
Study: too much sugar, not enough milk may damage U.S. teens' health
...s say, are more strokes, heart disease, high blood pressure
and cases of the bone-weakening condition known as osteoporosis. Total milk consumption dropped by close to 50 percent among adolescents over the three decades studied, they found. That decrease was accompanied by a heavy increase in consumption of ...
Two NHLBI studies confirm finding of gene in primary pulmonary hypertension
...cing the heart to pump harder and increasing blood pressure
in the pulmonary artery. The disease affects twice as many women as men -- usually women of child-bearing age -- although it can occur at any age, including infancy. The most common forms of treatment for advanced PPH are lung transplantation a...
Scientists identify gene that causes fatal lung disease
...s Primary Pulmonary Hypertension (PPH), high blood pressure
in the lungs. Without treatment, the disease is co...n't show this change." PPH is high blood pressure
in the lungs. The disease can happen at any age in either gender, although it does affect twice as m...
Oliver Smithies wins major award from Japanese research foundation
... Madea, the scientist has been studying high blood pressure
-- a major human problem -- with the genetically altered mice. A member of the UNC Lineberger Comprehensive Cancer Center, Smithies has earned many international, national and state awards. Among those were two Gairdner awards, the Alfred P. Sloan ...
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