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Sense in Biological News

Penn State entomologists seek fungus to blunt mosquitoes' sense of smell

Sick people often lose their sense of smell and their appetite. If this happened to mosquitoes, they would not be able to feed on humans and spread malaria. A team of Penn State entomologists is looking for an insect disease that will infect mosquitoes and impair their sense of smell. Supported ...

Liking sweets makes sense for kids

Philadelphia (March 18, 2009) As any parent knows, children love sweet-tasting foods. Now, new research from the University of Washington and the Monell Center indicates that this heightened liking for sweetness has a biological basis and is related to children's high growth rate. "The relati...

Girls have superior sense of taste to boys

New knowledge: Girls have a better sense of taste than boys. Every third child of school age prefers soft drinks which are not sweet. Children and young people love fish and do not think of themselves as being fussy eaters. Boys have a sweeter tooth than girls. And teenagers taste differently. Th...

Deprived of a sense of smell, worms live longer

Many animals live longer when raised on low calorie diets. But now researchers at Washington University School of Medicine in St. Louis have shown that they can extend the life spans of roundworms even when the worms are well fed it just takes a chemical that blocks their sense of smell. Three...

Do birds have a good sense of smell?

This press release is available in German . The sense of smell might indeed be as important to birds as it is to fish or even mammals. This is the main conclusion of a study by Silke Steiger (Max Planck Institute for Ornithology) and her colleagues. The sense of smell in birds was, until q...

For some who have lost their sense of smell, a once popular asthma drug could help

SAN DIEGO, CA -- Despite the fact that millions of Americans are believed to have lost their sense of smell (hyposmia), no effective method exists to treat many of these people. That is due in part to the fact that the causes of smell loss are varied and complex, ranging from chronic allergies, vi...

Making sense of antisense microRNAs

Three independent papers in the January 1st issue of G&D report on the discovery of a bidirectionally transcribed microRNA (miRNA) locus in Drosophila. The studies from Drs. Alexander Stark and Manolis Kellis (MIT) and colleagues, and from Dr. Eric Lai (MSKCC) and colleagues, both reveal that anti...

Advance in effort to fight malaria by tricking the mosquito's sense of smell

By mapping a specialized sensory organ that the malaria mosquito uses to zero in on its human prey, an international team of researchers has taken an important step toward developing new and improved repellants and attractants that can be used to reduce the threat of malaria, generally considered ...

Rainforest rehab in every sense

Sophisticated sensors that measure leaf wetness, soil moisture and temperature are helping rehabilitate rainforest in the Springbrook World Heritage precinct in south-east Queensland. The CSIRO sensors are being used to uncover the microclimatic conditions favourable for rapid natural regenera...

Robotic whiskers can sense three-dimensional environment

Many mammals use their whiskers to explore their environment and to construct a three-dimensional image of their world. Rodents, for example, use their whiskers to determine the size, shape and texture of objects, and seals use their whiskers to track the fluid wakes of their prey. Two Northwest...

Researchers discover how bacteria sense their environments

When humans taste or smell, receptors unique to each nerve cell detect the chemical and send signals to the brain, where many cells process the message to understand what we are smelling or tasting. But a bacterium is just a single cell, and it must use many different receptors to sense and interpr...

Evolutionary scrap-heap challenge: Antifreeze fish make sense out of junk DNA

Scientists at the University of Illinois have discovered an antifreeze-protein gene in cod that has evolved from non-coding or 'junk' DNA. Since the creation of these antifreeze proteins is directly driven by polar glaciation, by studying their evolutionary history the scientists hope to pinpoint t...

Duck-billed dino crests not linked to sense of smell

After decades of debate, a U of T researcher has finally determined that duck-billed dinosaurs' massive but hollow crests had nothing to do with what many scientists suspected -- the sense of smell. Speculation about their function has led to theories that the crests functioned as everything from...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

No matter how healthy a life one leads, no person has managed to live much longer than a century. Even though the advances of the modern age may have extended the average human life span, it is clear there are genetic limits to longevity. One prominent theory of aging lays the blame on the accumula...

New study examines how sense of smell affects mating and aggression in mice

New research by scientists at UCSF sheds light on how the odor detecting system in mice sends signals that affect their social behavior. "Understanding how mice process cues from the olfactory system--which regulates the sense of smell--should provide insight into the fundamental principles that...

Bacteria which sense the Earth's magnetic field

Max Planck researchers uncover how a nanoscale 'compass' inside bacteria orients them to the Earth's magnetic field. The entire bacterium is oriented like a compass needle inside the magnetic field. Until now, it was not clear how the cells organise magnetosomes into a stable chain, against their...

Fighting malaria by manipulating mosquitoes' sense of smell

Combating the spread of malaria by manipulating the mosquitoes' sense of smell is the object of an ambitious research project, led by Vanderbilt University, that has been selected to receive $8.5 million as part of the Grand Challenges to Global Health. The initiative, which was launched by the B...

To translate touch, the brain can quickly rearrange its sense of the body

The brain is bombarded by information about the physical proportions of our bodies. The most familiar sensations, such as a puff of wind or the brush of our own shirt sleeve, serve to constantly remind the brain of the body's outer bounds, creating a sense of what is known as proprioception. In a n...

'Bionic' arm gives amputee sense of touch

Impressive impact factors prove that BioMed Central's Open Access journals are high quality and widely read and cited. Journals published by BioMed Central have again received impact factors that compare well with equivalent subscription titles, it was announced today, with five titles in the top f...

Bladder cells feel stretch

...9. Bladder is known to release ATP that activates micturition reflex pathway during urine storage. However, it has been unknown how urothelial cells sense bladder distension. The research group examined the function of 'TRPV4' protein abundantly expressed in urothelial cells. The group developed a specia...

Carnegie donates landmark clones to biology

...with each other and the protective membrane that surrounds a cell. These interactive, so-called membrane proteins regulate nutrients and water fluxes, sense environmental threats, and are the communications interface with neighboring cells and within the cell. Now with National Science Foundation funding, ...

AGU journal highlights -- Aug. 6, 2009

... Ponte and Quinn analyze data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission (which measures Earth's gravity field and can sense mass movement) and estimates of winds and currents produced by the Estimating the Circulation and Climate of the Ocean (ECCO) project. The results ind...

Argonne to showcase science and technology at community open house

... Strap on special 3-D glasses to explore the outer edges of the universe Race the robot in a molecular biology speed challenge Test your sense of smell against an electronic nose View a chain reaction Calculate your environmental footprint Have fun with extreme cold and cryogen...

New hope for fisheries

...hat paper led to a public disagreement between Worm and Hilborn. Through their subsequent discussions, however, the two scientists recognized a shared sense of purpose. They decided to collaborate on a more detailed assessment of the world's fisheries, and brought together many of the world's most talented...

A crystal ball for brain cancer?

...nt. "We theorized that tumors with more water motion would also have higher VEGF levels," explained Pope. "Because Avastin targets VEGF, it made sense that the drug would work better in tumors with high levels of the growth factor." By measuring the amount of water motion within the tumor, the r...

1 in 6 health workers won't report in flu pandemic -- study by Ben-Gurion U. researchers

...heir duty, and perceive it as important.aa Downplaying the threat of the scenario to calm the fears of the workers is not an advisable approach. A sense of threat is an important component in the workers' motivation to prepare for the event and to respond to it. Personal safety assurances of worker...

Common allergy drug reduces obesity and diabetes in mice

... and diabetic humans and mice. Their numbers were inversely correlated with the numbers of a class of inflammatory immune cells, macrophages, in a sense creating parallel universes of fat. While obese and diabetic fat tissue was full of inflammatory macrophages and nearly absent of Tregs, normal-weight...

URI researcher sheds light on 'man-eating' squid; finds them timid, nonthreatening

...em to be very aggressive, so I was surprised at how timid they were. As soon as we turned on the lights, they were gone," he said. "I didn't get the sense that they saw the entire diver as a food item, but they were definitely going after pieces of our equipment." According to Seibel, there have been...

URI researcher sheds light on 'man-eating' squid; finds them timid, non-threatening

...em to be very aggressive, so I was surprised at how timid they were. As soon as we turned on the lights, they were gone," he said. "I didn't get the sense that they saw the entire diver as a food item, but they were definitely going after pieces of our equipment." According to Seibel, there have been...

Our brain looks at eyes first to identify a face

...hat artificial face identification systems obtain better results when they process small pictures of faces, which means that they could behave in this sense like humans. ...

Reviews of microbial gene language published in special issue of Trends in Microbiology

...d Coordination Center for the HMP. The application of standards such as the Gene Ontology, and particularly the PAMGO terms, will be essential to make sense of the massive amounts of metagenomic annotation that will be collected during this project." Another paper in the series looks at how the Gene On...

UAB students' Nintendo Wii CPR earns American Heart Association support

... January, and that is when we initially contacted the American Heart Association about the idea," Walcott said. "The Heart Association wanted a better sense of how it might work, so we assigned the research to our senior year biomedical engineering students this past spring semester for their senior projec...

Forest fire prevention efforts will lessen carbon sequestration, add to greenhouse warming

...OSU Department of Forest Ecosystems and Society. "That seems to make common sense and sounds great in theory, but when you actually go through the data it do.... The study authors concluded that fuel reduction may still make more sense in east-side Cascade Range and other similar forests, but that the west-sid...

Plant protein 'doorkeepers' block invading microbes, study finds

... last 20 years, scientists have identified a number of proteins that are important for regulating the plant immune system but still do not have a good sense of what protein complexes these proteins belong to and how they signal to confer disease resistance. "Our ability to purify an immune protein compl...

Finding the constant in bacterial communication

...ing abilities, with tremendous variations, the researchers said. "Quorum sensing is a cell-to-cell communication mechanism that enables bacteria to sense and respond to changes in the density of the bacteria in a given environment," said Anand Pai, graduate student in bioengineering at Duke's Pratt Scho...

Plant protein 'doorkeepers' block invading microbes, study finds

... last 20 years, scientists have identified a number of proteins that are important for regulating the plant immune system but still do not have a good sense of what protein complexes these proteins belong to and how they signal to confer disease resistance. "Our ability to purify an immune protein compl...

Researchers see evidence of memory in the songbird brain

...d of another bird of its species singing," Clayton said. "And what we found is that 24 hours after the experience its brain is still trying to make sense of what it heard." The new study took a broad snapshot of gene activity in the brain. Using DNA microarray analysis, the researchers measured chang...

NYC science symposium marks Gruber Prize program 10th anniversary

...rector of Basic Sciences at the Fred Hutchinson Cancer Research Center, whose research has provided key insights into the mechanisms that underlie the sense of smell in mammals and earned her the Nobel Prize in Physiology or Medicine, will speak on "Deconstructing Smell." Dr. Fred Gage, professor in th...

High carbon dioxide levels cause abnormally large fish ear bones

... levels of carbon dioxide experienced abnormally large growth in their otoliths, or ear bones. Otoliths serve a vital function in fish by helping them sense orientation and acceleration. The researchers had hypothesized that otoliths in young white seabass growing in waters with elevated carbon dioxide ...

The battle for CRTC2: How obesity increases the risk for diabetes

...ndividuals, leading Montminy and his colleagues to suspect that fasting-induced glucose production was only half the story. "When a cell starts to sense stress a red light goes on, which slows down the production of proteins," explains Montminy. "This process, which is known as ER stress response, is a...
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