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Tag: "relationship" at biology news

Quick -- what’s that smell?

...ugust issue of Neuron. By demonstrating a clear relationship between odor sampling time and accurate odor identification, the Monell researchers solved a controversy centering on whether the brain processes olfactory information in a similar manner to how it processes visual and auditory stimuli. "Previous ...

Corals switch skeleton material as seawater changes

...nges only over millions of years and has no direct relationship to recent global warming and ocean acidification, which are believed to be at least partly human caused." His team's experiments do, however, have significance with respect to global warming and ocean acidification, Ries said, because they reveal t...

Scientists describe new African monkey genus ?first in 83 years

... Kipunji with baboons or failed to support a close relationship between Kipunji and other mangabeys." Meanwhile, Sargis flew to Chicago with only a week's notice to work with Stanley on the skull of the only specimen of Kipunji. They used the Field Museum's extensive primate collection to compare Kipunji with o...

Higher levels of obesity associated with greater health risks

...h, and colleagues conducted a study to examine the relationship between weight category and risk of death and coronary heart disease (CHD) in a large population-based sample of U.S. women, focusing on risk across degree of obesity. The researchers analyzed data on incident death and cardiovascular outcomes by we...

Research offers new hope for preterm babies

... (MIMR) are carrying out studies to understand the relationship between blood pressure and the amount of oxygen in a preterm baby's brain. "Many preterm babies suffer from low blood pressure, which reduces the oxygen supply to their brain," said neonataologist and MIMR PhD student, Dr Flora Wong. "This makes the...

Diabetes research takes wing thanks to long-lived fruit fly

...1.4 million in a new five-year study exploring the relationship between JNK and the insulin receptor, while Jasper will use $1.1 million in a four-year study investigating just how much control JNK seems to wield over insulin production. It's likely, for instance, that JNK counters the effects of the insulin rec...

Blood-compatible nanoscale materials possible using heparin

...gical activities to establish a structure-activity relationship that may reveal lead compounds for new drug development. Recent discoveries include a synthetic method for preparation of heparin in quantities large enough for use in medical treatment. ...

Expanding waistlines triggered by your genes

...nsion underneath the skin. The study illustrates a relationship between the gene and obesity and metabolism. The MT1-MMP gene is specifically important in regulation of fat cell size and metabolic gene expression. When the gene function was deleted, mice became skinny. The fat tissues around their bellies were v...

Acid rain causing decline in sugar maples, say researchers

...the treated plot. Future research will explore the relationship between mycorrhizae and acid rain. Though pollution-control legislation has helped reduce sulphuric acid by one-third since its high point in the 1960s, nitric acid from automobiles has not significantly declined. This research was supported by ...

Gene therapy prevents the onset of diabetic symptoms in mice

...the treated plot. Future research will explore the relationship between mycorrhizae and acid rain. Though pollution-control legislation has helped reduce sulphuric acid by one-third since its high point in the 1960s, nitric acid from automobiles has not significantly declined. This research was supported by ...

MRSA vaccine shows promise in mouse study

..." Schneewind and colleagues are now exploring the relationship between antibodies that fight S. aureus infection and surface proteins of the bacterium that facilitate the spread of the infection. S. aureus, often referred to simply as "Staph," is common, found on the skin and in the noses of an estimated 30 pe...

ABCB6 is key to production of heme in hemoglobin

...ling them in. "We showed that there is a dynamic relationship between ABCB6 and the levels of heme and porphyrin...he building block of heme. "Any disruption of this relationship can cause serious problems in the cell by altering levels of heme or porphyrins," Schuetz said. Arm...

Fire ant-attacking fly spreading rapidly in Texas

...and his colleagues are looking at the fire ant-fly relationship in parts of Argentina that are similar to habitats in Texas. "It is rewarding to see the first species expanding over more than four million acres of Texas," says Gilbert, "but we've failed miserably in parts of Texas, like South Texas, to which th...

Beauty and the brain

...peed was factored out of the equation ?much of the relationship between closeness to prototype and attractiveness disappeared. A third experiment ?again with abstract, random-dot images ?was performed with electrode measurements at cheek and brow muscles (to detect the formation of incipient smiles or frowns) ...

Minorities, uninsured less likely to receive care at high-volume hospitals

...f studies have reported of a direct volume-outcome relationship for certain procedures, with patients at high-volume hospitals consistently having better outcomes. It appears there are important differences in the racial and socioeconomic status of patients who receive care at high- and low-volume hospitals, acco...

Smoking changes brain chemistry

... "This is the first imaging study to focus on the relationship between brain metabolites and nicotine dependence," said Okan Gür, M.D., from the Department of Radiology at the University of Bonn in Germany. Dr. Gür and colleagues used proton magnetic resonance spectroscopy (MRS) to study 21 men and 22 women,...

New path from estrogen to survival in breast cancer cells described

...how that this protein, by itself, doesn't have any relationship to the cancer, but when modified by the protein NEDD8, can act like a tumor suppressor. The researchers also found that SIRT1, a key protein involved in this molecular pathway, is a member of a family of proteins responsible for prolonging life spa...

Study suggests evolutionary link between diet, brain size in orangutans

...dge, this is the first such study to demonstrate a relationship between relative brain size and resource quality at this microevolutionary level in primates," they said. Such a change would provide support for what Taylor called the "expensive tissue" hypothesis. "Compared to other tissues, brain tissue is meta...

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

...re than 39-fold. The researchers then took the relationship observed in 1918 between per capita income and mortality and extrapolated it to 2004 population data. After adjusting for global income and population changes, as well as changes in age structures within different populations, the research team estim...

How blood flow dictates gene expression

...of rapid blood flow through the main vessels. This relationship between atherosclerosis and flow has been known for decades. More recently, tissue- culture studies have shown that Klf2 is activated by increased blood flow, or "fluid sheer stress." Indeed, in this study Kahn; first author John S. Lee, MD, ...

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