Tag: "show" at biology news

Stem cell therapy shows promise for rescuing deteriorating vision

...tive brain cells that arise in early development - show "some of the best rescue, functionally and anatomi...ls can be tested in humans: "The first thing is to show that something works, which we have done," says Lund. "Now we need to find out why, but this is a go...

Cryoablation -- A new treatment option for some kidney tumor patients

...raphy (CT) or ultrasound. The Mayo study findings show that cryoablation can be used for some larger tumors with simultaneous operation of multiple cryoprobes guided by ultrasound. The ablation margin (the edge of the frozen tissue) can be accurately monitored with CT, to ensure that the total tumor mas...

Dinosaur extinction didn't cause the rise of present-day mammals, claim researchers

...ng fossil records and new molecular analyses. They show that many of the genetic 'ancestors' of the mammal...ciety of London adds: "Not only does this research show that the extinction of the dinosaurs did not cause the evolution of modern-day mammals, it also prov...

UCLA: How does your brain respond when you think about gambling or taking risks?

...associate professor of psychology. "The people who show much more neural sensitivity to losses relative to gains are the same people who are very reluctant to gamble unless they are offered extremely favorable gambles. The people who are about as sensitive to losses as gains neurologically are the ones wh...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...the inner reef corals. Images captured by CSIRO show large plumes of terrestrial material following unconventional patterns and travelling quite fast as far as 65 to 130km, to the outer reef and, in some instances, travelling along the outer reef and re-entering the reef. The plumes are the result ...

Clues to gene expression in cystic fibrosis will guide research

...nch clinical trial published today in BMC Medicine show how a small percentage of CF sufferers with a rare genetic stop mutation responded positively to gentamicin treatment. Aleksander Edelman and Isabelle Sermet-Gaudelus of Faculté de Médicine Necker in Paris led collaborators from several French insti...

Reversing cancer cells to normal cells

...ular biology in recent years, the team was able to show that the aggressive melanoma cells secrete Nodal, a critical component underling the two-way communication between tumor cells and the embryonic microenvironment. Nodal is an embryonic factor (also called a morphogen) responsible for maintaining the ...

Biologists call for better choice of model organisms in 'evo-devo'

...ganisms to maximise phylogenetic spread is nice to show diversity, but it doesn’t necessarily lead to new general insights about evolution. "Choosing new models in this way leaves it entirely a matter of chance whether a new model will illuminate a particular evo-devo theme. "Instead, we urge worke...

Major link in brain-obesity puzzle found

...ic, diet and hormone techniques, they were able to show that the action of SH2B1 regulates body weight, the action of the metabolic signaling molecules leptin and insulin, and the use of energy from food. It even moderated the impact of a high-fat diet on body weight. The experiments were performed in...

'Exercise pill' switches on gene that tells cells to burn fat

...mal mice that receive the drug to switch on PPAR-d show increased fat burning and resistance to weight gain, but they do not show increased endurance. Dr. Evans says this suggests the delta switch can operate in different modes, a...

Chromosomal microarray analysis proves accurate

...e, there are portions of the genetic material that show imbalances because they are duplicated or deleted abnormally with gains and losses of genetic information. "If these changes are big enough, they can cause significant disabilities," said Beaudet. The technique used is also much more efficient,...

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

...of Nottingham. Dr Back said: "Previous findings show that children and adolescents with autism may have difficulty reading mental states from facial expressions but our results suggest that this is not due to an inability to interpret information from the eyes. "Surprisingly, autistic children seeme...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...2003, which used data from commercial fisheries to show rapid declines in the great sharks of the northwest Atlantic since the mid-1980s. Now, by examining a dozen different research surveys from 1970-2005 along the eastern U.S. coast, the research team has found that their original study underestimated t...

New study is first to link romantic relationships to genes

... basis for romantic chemistry, and is the first to show that compatible genes can influence the sexual relationships of romantic couples. ...

NYU scientists identify how development of different species uses same genes with distinct features

...st in wasps or other species: The study’s findings show that it takes several mRNAs localized in the egg to achieve the same functions in wasps as bicoid does in flies. Two of these genes, which are found in most species of insects, are orthodenticle. Orthodenticle performs the anterior promoting function...

Widely used hepatitis B drug spurs HIV drug resistance

... drugs used to treat the AIDS virus. "Our results show that entecavir is no different from any other that has been shown to be active against HIV - it breeds resistance rapidly, despite its ability to reduce the amount of HIV in the body," says senior study author and infectious disease specialist Chloe ...

The great escape -- fleeing fish fall in line

...r Paolo Domenici stated, “Our work is the first to show that fish maintained under the same conditions, with no differential treatment, show a tendency for keeping a relatively fixed chronological order of escape. This implies that in a giv...

Light wine intake is associated with longer life expectancy in men

...ectancy. Studies such as this cannot definitively show whether the agent being studied has a causal effect on health. The Netherlands study ?called the Zutphen Study ?involved a cohort of 1,373 men born between 1900 and 1920 who were surveyed in detail about alcohol consumption seven times over 40 year...

How does your brain tell time?

...ver time in response to stimuli, they were able to show that the network could tell time. Their simulations indicated that a specific event is encoded within the context of events that precede it. In other words, if one could measure the response of many neurons in the brain to a tone or a flash of li...

Single molecule extends fat mice lives by reversing gene pathways associated with disease in obese

...ecules throughout cells. Indicators in this study show that resveratrol might also be activating SIRT1 in...active, better lives. Their motor skills actually show improvement as they grow older. " Reversing Genetic Pathways Triggered by High Calorie Diet Th...

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