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Tag: "analyses" at biology news

UF scientists discover new genus of frogmouth bird in Solomon Islands

... combination of detailed morphological and genetic analyses reveal that this frogmouth ?formerly dismissed as just a race of an existing species ?actually cannot be placed confidently in any existing genus, and so the data demand naming a new one." Storrs Olson, a senior zoologist with the Smithsonian Inst...

Uganda's mountain gorillas increase in number

...truct a nest each night), researchers used genetic analyses as well, specifically because many of the groups were clustered in the same area of the park, which presented survey teams with the risk of double-counting the same individuals or groups. DNA analysis, however, allowed individuals to be identified an...

Scientists discover new species of distinctive cloud-forest rodent

...andsome novelty," Patterson said. "Preliminary DNA analyses suggest that its nearest relatives, all restricted to the lowlands, may have arisen from Andean ancestors. The newly discovered species casts a striking new light on the evolution of an entire group of arboreal rodents." ...

US conservation efforts bring more marine turtles to UK

...ublished this week in Marine Biology (3 May 2007), analyses 100 years of data. It shows an increase in the number of loggerhead and Kemp’s ridley turtles in UK and French waters in the last twenty years. The research team believes this is most likely the result of protective measures put in place in the Unite...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...eal challenge will be to move beyond retrospective analyses and instead prevent ecosystem-wide changes from happening in the first place." "Our study provides evidence that the loss of great sharks triggers changes that cascade throughout coastal food webs," says Baum. "Solutions include enhancing protec...

Investment level in HIV prevention programs related to HIV incidence in the United States

...ant to lower infections further in the U.S., these analyses suggest we should consider increasing our national investment. Yes, that may seem expensive, but HIV medical care easily tops $20,000 per patient per year. Therefore, funding of effective, scientifically sound HIV prevention services are likely to ha...

Proteins may predict lung transplant rejection

...ose who later suffered chronic rejection. Later analyses identified 265 proteins that were upregulated in lung rejection up to 20 months before it happened. With yet more research, they found the following became elevated with chronic rejection: matrix metalloprotein-9 (66 times more likely to suf...

More species in the tropics because species have been there longer

...s richness in treefrogs in the Americas. Combining analyses of evolutionary trees based on DNA sequences with GIS-based methods for analyzing the effects of climate on species distributions, the researchers found no relationship between how quickly species originate within a group and whether that group is tr...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...s of walking sticks to get enough secretions to do analyses and, no, it's not easy to do," Meinwald said. "When we started you could hardly work with natural materials in terms of milligrams. Now you can do chemistry on the microgram scale. NMR has made enormous progress - it has thousands of times the sensit...

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

...n other animals, the researchers performed similar analyses on the chimpanzee and mouse genomes. They examined 1,050 accelerated chimpanzee CNSs and 4,707 accelerated mouse CNSs. Said Noonan, "While the accelerated chimpanzee CNSs were also significantly enriched near neuronal cell adhesion genes, there w...

Newly identified biomarker detects and regulates spread of brain tumors

... tumor responds to treatment. "Using proteomic analyses of the CSF of patients with brain tumors, we have identified for the first time that attractin levels are elevated in patients with high-grade astrocytoma," says Erwin Van Meir, PhD, professor of neurosurgery and hematology/oncology and lead author o...

Small, smaller, smallest -- The plight of the vaquita

...ulprits. It is also not a genetic problem. Genetic analyses and population simulations suggested that the vaquita has always been rare and that its extreme loss of genomic variability occurred over evolutionary time rather than recently owing to human-caused mortality. Instead of those factors, the “smoking g...

Muscle and bone from an ink-jet printer

...s (e.g., bone- or muscle-like). Immunocytochemical analyses confirmed that the bio-ink patterns successfully directed differentiation of the MDSCs toward a myogenic or an osteogenic lineage in direct registration to patterns. The proof-of-concept experiment led to the formation of muscle- and bone-like tis...

Amateur boxing linked to brain cell injury

...xtensive follow-up regarding the clinical outcome, analyses of cerebrospinal fluid may provide a scientific basis for medical counseling of athletes after boxing or head injury." ...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

...nalysis, and complex computational and statistical analyses to simultaneously compare 2,000 cerebrospinal fluid proteins from 34 patients with autopsy-proven Alzheimer's disease to those of 34 age-matched controls without the disease. "Just as the human genome reflects the array of genes a person possesses,...

High HPV concentrations combined with smoking significantly raise risks of cervical cancer

...ompared to HPV-negative nonsmokers. "Our initial analyses centered on whether smoking was an independent risk factor for cervical cancer," said Gunnell. "Clearly, both exposures need to be present at the same time for there to be interaction. "Our study would imply a synergistic action between HPV and sm...

Genomic comparison of lactic acid bacteria published

...dustrial applications. The extensive bioinformatic analyses by world experts adds to the impact of the genomic data and provides new hypotheses on how microbial genomes evolve by mechanisms of genomic loss and horizontal gene acquisitions." ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...FMRIB Centre, and LCModel (a computer program that analyses spectroscopy data) to give estimates of changes to brain volume, form (morphology), metabolism and function. The technology enabled the researchers to superimpose the images of the patients?brains upon follow-up on to the images of the brains at ...

Otherworldly bacteria discovered two miles down

...ional Taiwan University, who performed many of the analyses as a doctoral student at Princeton and as a postdo...ow how isolated the bacteria have been because our analyses show that the water they live in is very old and hasn't been diluted by surface water. In addition, ...

Researchers map spread of pathogens in the human body

...in the November issue of PLoS Biology. The work analyses the spread and distribution of Salmonella in the body, which is a bacterium that causes typhoid fever and food borne gastroenteritis in humans and animals, with severe medical and veterinary consequences and threats for the food industry. The work i...

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