Tag: "doctors" at biology news

Blood flow in brain takes a twist, affecting views of Alzheimer's

...e over a period of years. To diagnose the disease, doctors often order a brain scan. When the test shows lessened blood flow, doctors assume that there must be less of a demand for blood, and so significant numbers of neurons in that ...

Scientists develop malaria forecasting tool to predict disease risk

...ctions have ever been made. The model will assist doctors and health care providers in preventing and controlling the disease. Malaria is one of the world's deadliest diseases, killing more than one million people every year, as well as infecting a further 500 million worldwide. The mosquito-borne illne...

Drug resistance may travel same path as quorum sensing

...k is a communication signal, which is bad news for doctors and their patients. This process, known as multidrug resistance, results in the failure to cure the bacterial disease. Even worse, the resistance is not just to one drug, but many because the pump is now increased and many different drugs will be pu...

Study shows that cells have a natural defense against HIV

...ent dilemma for patients and doctors. Currently, doctors treat people with AIDS using combinations of drugs that target the virus itself. These drugs do not eliminate HIV from the body, but they do block its ability to reproduce and spread, and they restore most people with AIDS to good health. In time, ...

Lack of basic research putting patients at risk

...servational research provides the information that doctors need to diagnose and treat patients appropriately, writes neurologist Professor Peter Rothwell. But in the field of neurology alone, many examples exist where a lack of basic data is the main barrier for effective treatment in routine practice. For ...

Scientists reveal how deadly toxin hijacks cells

...y of botox to act on a localized group of muscles, doctors have strategically used the toxin to treat an array of medical troubles, including migraine headaches, chronic inflammation and even stuttering. "I don't think there's a neuromuscular junction that hasn't been inhibited by injecting with botox A," sa...

Pittsburgh researchers discover that certain chemicals in the blood may indicate brain injury

... in young children ?are often misdiagnosed because doctors rarely receive a history that an infant has been shaken, the patients are too young to talk, and the symptoms such as vomiting and fussiness are common in many childhood illnesses. Infants who are misdiagnosed may be inadvertently returned to a vio...

Experimental TB drug effective against resistant and latent mycobacterium tuberculosis

... if a person fails to respond to all therapies and doctors cannot bring the active infection under control, that person must be quarantined indefinitely to prevent the spread of the drug-resistant infection in the population. In the most extreme cases, part of the lung may be surgically removed. It is esti...

Study finds drug may cut down involuntary movements

...were six times as likely to be considered by their doctors to have improved considerably, compared to partici...ly pushed aside by more effective medications. But doctors in the United Kingdom found it to be effective to treat the excessive involuntary movements of Hunti...

For one Stanford doctor, the beat goes on during open-heart surgery

... presents an analysis by an international group of doctors of more than 150 previous studies of the procedure... a tricky step in the beating-heart procedure, the doctors and nurses and technologists in the room turned suddenly quiet. The beat, beat, beat of the heart mo...

Chemical warfare agent detection technology used to treat lung disease

.... The aim is to produce a device which will enable doctors to monitor patients with lung or respiratory conditions by simply asking them to breathe into it. The microDMx TM sensor is based on a Differential Mobility Spectrometer (DMS) and is a significant advance over the current Ion Mobility Spectrometer...

Predicting success

... are the mainstay of the fight against cancer. But doctors know that sometimes these drugs effect a complete cure, while other times they can be nearly ineffective. How to turn some of those failures into successes? A team of scientists at the Weizmann Institute, headed by Prof. Hadassa Degani of the Biologi...

Researchers create pigs that produce heart-healthy omega-3 fatty acids

... he adds, measures of genetic diversity might help doctors assess the success of cancer prevention therapies. In fact, he speculates, genetic diversity among tumor cells might help explain why therapy sometimes fails. If a tumor contains a diverse population of cells, some of those cells are more likely to...

Evolutionary biology research techniques predict cancer

... he adds, measures of genetic diversity might help doctors assess the success of cancer prevention therapies. In fact, he speculates, genetic diversity among tumor cells might help explain why therapy sometimes fails. If a tumor contains a diverse population of cells, some of those cells are more likely to...

New journal article urges use of animal serum-free media for growing live cells

...h issue of Trends in Biotechnology, scientists and doctors with the Physicians Committee for Responsible Medicine (PCRM) recommend using only animal serum-free media to grow live cells in the laboratory. At issue is the use of fetal calf serum, which is obtained by puncturing the heart of a fetal calf withou...

New male contraceptive clears hurdle

...with current contraceptives." In the RISUG study, doctors inject a gel into the tube that sperm travel through after they are produced (known as the vas deferens). The gel then disables the sperm as they swim by. In study animals, male fertility returns if the RISUG is flushed out with another injection tha...

Carnegie Mellon develops non-invasive technique to detect transplant rejection at cellular level

..."Perhaps most importantly, this advance will allow doctors to provide highly personalized care that could prevent transplant rejection." Organ transplantation is the preferred clinical approach to treat end-stage organ failure, but transplant patients face a lifetime of immunosuppressive therapy and the ris...

Ancient DNA helps UF researchers unearth potential hemophilia therapy

...pproach cannot be used in human babies yet because doctors have no way of gauging how severe hemophilia is in newborns. Patients with mild disease will have fewer problems and the benefits of gene therapy may not outweigh risks to the baby, Fletcher said. Ponder said she thinks the technique also may prove ...

Rare Tibetan antelope listed as endangered

...chest through small incisions. "With our scanner, doctors could see the target lesion or a portion of an organ in a real-time three-dimensional scan," Smith said. "They would have the option of viewing the tissue in three perpendicular cross-sectional slices simultaneously or in the same way a camera would ...

3D ultrasound device poised to advance minimally invasive surgery

...chest through small incisions. "With our scanner, doctors could see the target lesion or a portion of an organ in a real-time three-dimensional scan," Smith said. "They would have the option of viewing the tissue in three perpendicular cross-sectional slices simultaneously or in the same way a camera would ...

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