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Tag: "suspect" at biology news

Neuron cell stickiness may hold key to evolution of the human brain

...in genes. This led the Berkeley Lab researchers to suspect that the genetic basis of human-specific brain evolution might be found in the sequences that regulate genes, rather than the genes themselves. Rubin is a leading authority on CNSs who has advanced the principle that if evolution has conserved a s...

Newts which regrow their hearts

...pid loss of heart muscle-specific proteins. "We suspect that the signal for the de-differentiation comes from the area where the wound is healing and the cells communicate with each other," explains Braun. These signals could be transmitted via certain enzymes, for example. An enzyme of this nature - foca...

Selecting life: Scientists find new way to search for origin of life

...tions the subject of intense study. Scientists suspect that organic material was likely introduced to Earth from many complementary sources. Abundant biomolecules form in molecular clouds in deep space, and these extraterrestrial compounds must have rained down on the early Earth. Other molecular synthes...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

... infections or pneumonia. Failure by physicians to suspect this kind of drug-resistant staph can lead to treatment with the wrong antibiotic. Pyomyositis is an acute bacterial infection of skeletal muscle that produces an abscess within the muscle. Myositis is also a muscle infection, but does not form an a...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...a virus was causing the illness. Monto and Ohmit suspect that the adult participants in their study in 2004-05 had enough prior experience with influenza that the live attenuated virus may have failed to infect their nasal passages and initiate an immune response as it is intended to do. However, both stil...

Cardiologist's 'living chip' changes science of disease monitoring

...ork being done, the patient or physician would not suspect an issue until the patient began having symptoms or underwent pre-scheduled testing at a routine visit. Catching the problem earlier means the patient remains healthier, and greatly lessens the chance of a hospital stay. The initial application for...

Gene therapy for hereditary lung disease advances

...o finding a cure. In addition, medical authorities suspect less than 5 percent of affected individuals are diagnosed, often not until they are in their mid- to late-30s, after extensive lung damage occurs. Shortness of breath, wheezing, chronic cough and recurring chest colds are signs of the disease. It ...

Gene chip technology shows potential for identifying life-threatening blood infection

...rtunity for halting its lethal spread, doctors who suspect sepsis typically rush to prescribe powerful antibiotics, even before laboratory tests can confirm the diagnosis. But this practice invariably leads to the inappropriate treatment of many patients who have life-threatening, uncontrollable inflammation...

Ocean temperature predicts spread of marine species

...venile habitat," O'Connor said. The researchers suspect temperature plays an important role in larval dispersal because metabolic processes in larvae are sensitive to temperature and similar among species. Consequently, larvae in cold waters develop more slowly and drift further before beginning their nex...

Scientists solve 30-year-old mystery of mutant mouse's kidney woes

...can include kidney failure and death. Scientists suspect a variety of environmental and genetic factors contribute to fetal hydronephrosis. However, they frequently cannot tie it to any causative factors, making it difficult to determine how normal molecular and cellular processes in kidney development bre...

Inheriting a tendency to brain infection

...r the disease. Five years ago, Casanova began to suspect that those who were susceptible to the inflammator...two theories are mutually exclusive. "We strongly suspect that rare, highly deleterious mutations may co-exist with common polymorphisms in many infectious di...

Ohio University researchers discover evolutionary oddity in flamingos

...hening and supporting the floor of the mouth. "We suspect this stabilizes the mouth and tongue and helps with the peculiar way that flamingos eat," he said. "It's an important new piece of the puzzle of flamingo feeding--frankly, a piece we hadn't known was missing!" ...

Control measures fail to stop spread of new H5N1 virus

... contact with other humans," Webster said, "but we suspect from the studies they are being infected by contact with poultry." The researchers found the virus in samples taken from infected chickens in 11 of the last 12 months of the present study, compared with only four months during 2004-05. This indic...

Do angry men get noticed?

...physically aggressive than females, one might also suspect differences in the way in which threat is detected from individuals of different genders. In the new work, Williams and Mattingley show that angry male faces are found more rapidly than angry female faces by both men and women. In addition, men fin...

Gene linked to rare disease activates fat breakdown

...of the enzyme encoded by CGI-58 led researchers to suspect that the enzyme itself acted as a lipase. However, studies failed to confirm its lipid-busting activity and its role remained mysterious. Triglycerides consist of three fatty acids, each of which is removed in a "step-wise affair" from its glycerol ...

Researchers show how brain decodes complex smells

...components into an odor "picture." The researchers suspect that this integration doesn't happen in the olfactory bulb. Instead, the bulb likely passes the data to more advanced brain structures where it is assembled and recognized as a specific scent. Understanding how the olfactory system works in mice may...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...rowth of lymphatic vessels. Dana's team began to suspect the involvement of VEGFR-3 in stopping blood growth in corneas when they noticed unexpectedly that large amounts of the protein seemed to exist naturally on healthy corneal epithelium, a previously unknown location for the receptor. Dana and his team...

Can you hear me now? Scientists find previously unknown receptors on adult stem cells

...killed while keeping us healthy. But investigators suspect that the system also can be detrimental in certaincircumstances -- for example, in leukemia patients that are vulnerable toinfections after receiving bone marrow or cord blood transplants or inautoimmune diseases like lupus, where immunosuppressive t...

Stanford snake venom study shows that certain cells may eliminate poison

...ey "a kind of evolutionary arms race." He and Metz suspect that, given the broad range of venoms that have been developed by snakes and other creatures, mast cells probably won't perform as well against every type of venom. "We expect that there will be some snake venoms that either are not affected by mas...

Mice lacking key immune component still control chronic viral infections

...e found. Scientists can't prove it yet, but they suspect the missing immune system component, a group of molecules known as the Major Histocompatibility Complex (MHC) Class Ia, has a previously unrecognized backup that is similar enough to step in and fill the void left by its absence. If so, that backup m...

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