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Tag: "gauge" at biology news

Ever-happy mice may hold key to new treatment of depression

...trophysiological and biochemical measures known to gauge 'depression' in animals," says Dr. Debonnel. "The results really surprised us; our 'knock-out' mice acted as if they had been treated with antidepressants for at least three weeks." This research represents the first time depression has been elimi...

New GI technologies improve internal organ visualization

...nd - performed angiography using several different gauge aspirate needles (19g, 22g and 25g). Pigs were then euthanized to examine the results. The process demonstrated excellent visualization of the vasculature, and without any technical difficulties in injecting each artery. The 25g needle did not ca...

Leptin found to control appetite and limb development in frogs

...er speculates that leptin is probably important to gauge whether the tadpole has adequate energy reserves---in the form of body fat - to start metamorphosis at an appropriate time. Finding leptin in the Xenopus genome was no small feat. The sequence for the "obese" gene that makes leptin is quite differen...

Brain's 'gambling circuitry' identified

...ggest different treatment approaches, and may also gauge the impact on and the feedback from higher-level brain regions known to contribute to decision making." ...

AIDS vaccine research offers new insights on survival

...ls and suggest how they may be used as a marker to gauge the efficacy of these vaccines." The work was spearheaded by Letvin and his colleagues at the VRC, which is dedicated to improving global human health through the rigorous pursuit of effective vaccines for human diseases such as AIDS. Since it was f...

Study challenges myth that sex late in pregnancy hastens birth

... examinations also were performed at each visit to gauge whether the sexual activity had a "ripening" effect on the cervix. Schaffir found no correlation between the frequency of sexual intercourse and the score assigned to measure the cervix. That lack of change in the cervix among sexually active women,...

High dopamine transporter levels not correlated with ADHD

...so asked subjects to respond to a questionnaire to gauge levels of inattention. The scientists ran the same tests in 25 healthy control subjects with the same exclusion criteria. To measure dopamine transporter levels, each subject was given an injection of a radiotracer (a radioactively labeled chemical...

Brain regions do not communicate efficiently in adults with autism

...ng and positron emission tomography, both of which gauge brain activity by measuring blood flow. Post-mortem studies also suggest impairments in communication at the level of individual brain cells. This over and under abundance of neural connections suggests inefficient and inconsistent communicatio...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...to use saliva samples as well as questionnaires to gauge whether patients were smoking 3, 6, and 12 months after surgery. Investigators at Washington University and at the University of Texas M.D. Anderson Cancer Center enrolled 154 patients being treated for early stage lung cancer at their centers. Th...

Fast test for low blood flow in dogs detects early heart trouble

...d so-called deconvolution mathematical formulae to gauge the speed of blood flow through the heart and its feeding arteries and made separate calculations for each of the organ's three major regions: the front, back and side walls. When researchers compared the deconvolution measurements with those der...

What does the public really know about HPV?

...ng those vaccinated. The survey was then given to gauge intentions toward vaccination. It was completed by 635 adults, 49 percent of whom were women. Researchers found: More than half of respondents (56 percent) had heard of HPV and reported that they had seen or heard news or ads about HPV...

Monoclonal antibody reduces exacerbations in asthmatics

... mouthpiece of the PEF meter for three tests. As a gauge for pulmonary function, it is especially useful in patients older than age five who have persistent moderate to severe asthma.) "None of the exacerbations we saw in our study warranted treatment with oral corticosteroids or hospitalization, so they ...

'The eyes have it' -- Autism research yields surprising results

...erwent a series of tests to see whether they could gauge the mental state of a stranger by looking at diffe...uence of different combinations, they were able to gauge which aspects of the face were used by the autistic children to ‘read?someone’s mental state ?and ho...

New insights into autoimmunity and depression

...ng and jumping; rotarod and grip strength tests to gauge motor function; a staircase test; a swim T-maze test to assess cognitive function; and a passive avoidance test to measure the ability of mice to remember a foot shock delivered 24-hours earlier. Depression-like behavior was strongly observed in...

Ocean's 'twilight zone' may be a key to understanding climate change

... That, Buesseler said, "is like putting out a rain gauge in a hurricane." While many studies have investigated the surface of the ocean, little research has been conducted on the carbon cycle below. The VERTIGO team examined a variety of processes to open a new window into the difficult-to-explore twili...

A revolution in the monitoring of unborn babies

...sfully created a state-of-the-art device which can gauge both heart rates as well as fetal position. This unique home monitoring device could lead to a new approach in the management of pregnancy. Dr Margaret Ramsay says it will play a key role in monitoring high-risk pregnancies. “For all these fetuse...

Uganda's mountain gorillas increase in number

...pulation, in addition to their distribution and to gauge human impacts on the gorillas. During that time, survey teams set out with the intention of counting every family group in the population, a method possible only with small animal populations in a relatively small area; Bwindi Impenetrable National P...

Gene expression test reveals ER and HER-2 status of breast tumors

...etermine the ER and HER2 receptor status, and also gauge the sensitivity of the tumor to hormone therapy and chemotherapy," says Lajos Pusztai, M.D., Ph.D., associate professor in the M. D. Anderson Department of Breast Medical Oncology, and team leader with Symmans. ER-positive tumors are treated with...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

...cture of a protein that serves as a central energy gauge for cells, providing crucial details about the molecule necessary for developing useful new therapies for diabetes and possibly obesity. A paper published online today in the journal Science details this structure, helping to explain one of the cell...

Prehistoric origins of stomach ulcers uncovered

... use our understanding of the bacteria's spread to gauge poorly understood human population shifts in Europe, Africa and Asia." ...

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