|
KusGribiNedir.com
Avian influenza, Bird Flu Latest News, Cold Flu News |
Low oxygen levels in body linked to cancer-aiding protein | A professor of biochemistry who was researching protein kinase C gamma in the lens of the human eye found her work taking a fascinating turn when she discovered a correlation between the protein Coonexin46 and hypoxia -- a deficiency of oxygen which kills normal tissue cells. The researcher believes the findings will lead to serious advancements in treating retinoblastoma, a cancer that forms in the tissue of the retina. |
New study questions benefits of elective removal of ovaries during hysterectomy | Removal of the ovaries (bilateral oophorectomy) while performing a hysterectomy is common practice to prevent the subsequent development of ovarian cancer. This prophylactic procedure is performed in 55% of all U.S. women having a hysterectomy, or approximately 300,000 times each year. A new article suggests that this procedure may do more harm than good. |
Chemical competition: Research identifies new mechanism regulating embryonic development | A research team has discovered that protein competition over an important enzyme provides a mechanism to integrate different signals that direct early embryonic development. The work suggests that these signals are combined long before they interact with the organism's DNA, as was previously believed, and also may inform new therapeutic strategies to fight cancer. |
Hemoglobin A1c outperforms fasting glucose for risk prediction | Measurements of hemoglobin A1c (HbA1c) more accurately identify persons at risk for clinical outcomes than the commonly used measurement of fasting glucose, according to a new study. HbA1c levels accurately predict future diabetes, and they better predict stroke, heart disease and all-cause mortality as well. |
Future of broadband: Where data is broadcast using desk lamps | In the future, getting a broadband connection might be as simple as flipping on a light switch. In fact, according to a group of researchers from Germany, the light coming from the lamps in your home could one day encode a wireless broadband signal. |
Lizard moms choose the right genes for the right gender offspring | Brown anole lizards make an interesting choice when deciding which males should father their offspring. The females of this species mate with several males, then produce more sons with sperm from large fathers, and more daughters with sperm from smaller fathers. The researchers believe that the lizards do this to ensure that the genes from large fathers are passed on to sons, who stand to benefit from inheriting the genes for large size. |
'The Rosenfeld' named after California's godfather of energy efficiency | Pioneering French physicists Marie and Pierre Curie have the curie, a unit of radioactivity, named after them. Renowned inventor Nikola Tesla is honored with the tesla, which measures a magnetic field. And now, the Rosenfeld, proposed as a unit for electricity savings, will be named after the man seen by many people as the godfather of energy efficiency, Arthur Rosenfeld. |
Choosing a university degree is not linked to personality, Spanish study finds | Researchers in Spain have studied the connection between professional preferences and personality, based on interviews and questionnaires carried out on 735 secondary school students from the province of Cadiz. The results indicate that personality does not have an influence when choosing a professional career. |
Surprising findings about Hepatitis C and insulin resistance | Scientists have known for several years that Hepatitis C, a common cause of liver cirrhosis and cancer, also makes people three to four times more likely to develop Type 2 diabetes. In studying the insulin resistance of 29 people with Hepatitis C, Australian researchers have confirmed that they have high insulin resistance, a precursor to diabetes. However, almost all insulin resistance was in muscle, with little or none in the liver, a very surprising finding given that Hepatitis C is a liver disease. |
Skin transplant offers new hope to vitiligo patients | A new study finds that skin transplant surgery is safe and effective for treating vitiligo. Researchers followed 23 patients for up to six months after surgery and found that the treated area regained on average 52 percent of its natural skin color. In eight patients with a specific type of vitiligo, the treated area regained on average 74 percent of its natural skin color. |
Loss of enzyme reduces neural activity in Angelman syndrome | Angelman syndrome (AS) is a debilitating neurological disorder characterized by mental retardation and a high frequency of autism. Researchers have now found that the gene mutation underlying AS appears to affect the ability of neurons to communicate and to properly develop during the first few years of life, a time when brain activity is "rewired" by external stimuli. |
Cancer mortality has declined since initiation of 'war on cancer' | A new American Cancer Society study finds progress in reducing cancer death rates is evident whether measured against baseline rates in 1970 or in 1990. The study finds a downturn in cancer death rates since 1990 results mostly from reductions in tobacco use, increased screening allowing early detection of several cancers, and modest to large improvements in treatment for specific cancers. |
Earthquake in Chile: A complicated fracture | The extremely strong earthquake that struck Chile Feb. 27 was a complicated rupture process, scientists say. Quakes with such magnitude virtually penetrate the entire Earth's crust. After closer analysis of the seismic waves radiated by this earthquake during the first 134 seconds after start of the rupture, the researchers came to the conclusion that only the region around the actual epicentre was active during the first minutes. |
Researcher presents risk-free treatment for low female sexual desire | Researchers are currently testing a new drug, flibanserin, which was developed as an antidepressant and affects neurotransmitters in the brain, to treat women with low sexual desire. However, experts are concerned about the side effects of this possible treatment. Now, a researcher has found evidence that a low-cost, risk-free psychological treatment is effective and may be a better alternative to drugs that have adverse side effects. |
How ATP, molecule bearing 'the fuel of life,' is broken down in cells | Researchers have figured out how ATP is broken down in cells, providing for the first time a clear picture of the key reaction that allows cells in all living things to function and flourish. Discovered some 80 years ago, adenosine triphosphate is said to be second in biological importance only to DNA. |
Natural and artificial sheaths used to mend traumatic bone loss | A research team has shown that the stem-cell rich periosteum sheath around bone can be used to mend serious bone loss faster and more simply than bone grafts. The researchers have developed an artificial periosteum that can be implanted in patients who have too little of the natural covering left. |
New syndrome affecting potentially thousands of hospital inpatients identified | Researchers have identified a new syndrome affecting potentially thousands of hospital inpatients. Coined SHAKE (Supplement-associated Hyperammonemia After C(K)achetic Episode), the condition, which results in altered mental status and difficulty walking, can be prevented by excluding high protein dietary supplements in a patients' diet if they have experienced poor eating for more than a week prior to their admittance. |
Deceptive model: Stem cells of humans and mice differ more strongly than suspected | Mice are in many ways similar to Homo sapiens on a fundamental level. That is why the law in this part of the world only permits scientists to conduct research on human embryonic stem cells when they have "clarified in advance" their specific questions by using animal cells as far as possible. However, such tests are often pointless -- and sometimes even misleading, as a recent study demonstrates. |
Increased solar radiation requires additional CO2 reduction of 50 million tonnes, analysis finds | The recently observed reduction in air pollution implies that more solar radiation reaches Earth’s surface. This could lead to a far more rapid increase in Earth’s temperature in the coming decades than has previously been expected. In order to successfully combat global warming, it is crucial that scientists incorporate increases in CO2 emissions reductions as well as reductions in air pollution in the calculations, according to a new analysis based on unique solar radiation data collected from weather stations between 1959 and 2002. |
Full house raises risk of hospital deaths, study finds | A full house isn't always a good thing, according to a new study that links high hospital occupancy to higher death rates for patients. High occupancy periods are a challenging time when more things can go wrong, authors say. Researchers evaluated records at 39 Michigan hospitals to study a set of factors that can affect hospital deaths. The large scale study can provide lessons for hospitals across the country. |
|
|
|
| |
| | | |
