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Bad in Biological News

A bad performance is better than no performance at all

The learning of birdsong resembles the learning of speech in humans. Crucial for the process are acoustic perception and the ability to produce sound. Social isolation leads to a disturbed vocal development both in humans and in birds. When children grow up without contact to other humans they ei...

Good liquid, bad liquid

Immediately after the liquid explosive bomb plot was uncovered in London in August 2006, the Department of Homeland Security's Science & Technology Directorate (S&T) looked to to find ways to not only detect liquids in baggage and on passengers, but also to figure out what those liquids are. Now, ...

A scientific breakthrough on the control of the bad cholesterol

Montral, November 24, 2008 A study performed by the team of Dr. Nabil G. Seidah, Director of the Biochemical Neuroendocrinology Research Unit at the IRCM, shows for the very first time that the degradation by PCSK9 of the LDLR receptor, which is responsible for removing the bad cholesterol (LDL-c...

Stomach ulcer bug causes bad breath

Bacteria that cause stomach ulcers and cancer could also be giving us bad breath, according to research published in the December issue of the Journal of Medical Microbiology . For the first time, scientists have found Helicobacter pylori living in the mouths of people who are not showing signs...

Flu shot protects kids -- even during years with a bad vaccine match

Children who receive all recommended flu vaccine appear to be less likely to catch the respiratory virus that the CDC estimates hospitalizes 20,000 children every year. This is according to new research published in Pediatrics by the University of Rochester Medical Center. The study looked at...

Why binge drinking is bad for your bones

MAYWOOD, Il. -- Studies in recent years have demonstrated that binge drinking can decrease bone mass and bone strength, increasing the risk of osteoporosis. Now a Loyola University Stritch School of Medicine study has found a possible mechanism: Alcohol disturbs genes necessary for maintaining ...

Swamping bad cells with good in ALS animal models helps sustain breathing

In a disease like ALS - one that's always fatal and that has a long history of research-resistant biology - finding a proof of principle in animal models is significant. This week, Johns Hopkins researchers report that transplanting a new line of stem cell-like cells into rat models of the dise...

OSU study shows exposure to bad air raises blood pressure

COLUMBUS, Ohio The air people breathe while walking in the park, working in the garden or shopping downtown may be unhealthy enough to seriously spike their blood pressure, a new study suggests. Cardiovascular researchers at The Ohio State University Medical Center are the first to report a di...

The good, the bad and the smelly: USGS at the 2008 Coral Reef Symposium

USGS scientists will present major research findings at the 11th International Coral Reef Symposium in Fort Lauderdale, Fla. from July 7-11, 2008. African Dust Poses Threat to Coral Reefs and Human Health: Contaminants carried with African dust to the Caribbean and the Americas may be a thr...

The good and the bad of a potential Alzheimer's target

Research in fruit flies has shown that enhancing the production of a protein called neprilysin can reduce the formation of plaques and neuron death associated with Alzheimer's, at the expense of reducing the flies' lifespan. The buildup of amyloid-beta protein plaques within the brain is a maj...

Study locates cholesterol genes; finds surprises about good, bad cholesterol

ANN ARBOR, Mich.---An international study of 20,000 people found seven new genes that influence blood cholesterol levels, a major factor in heart disease, and confirmed 11 other genes previously thought to influence cholesterol. The international study led by researchers from the University o...

University of Alberta researchers report breakthrough in lowering bad cholesterol, fatty acid levels

There is heartening news out of the University of Alberta for those who may have overindulged during the recent holidays. U of A medical researchers have found a way to reduce the amount of bad cholesterol and fatty acids that end up in the blood from food the body metabolizes, a key discover...

Testosterone turns male juncos into blustery hunks -- and bad dads

BLOOMINGTON, Ind. -- The ability to ramp up testosterone production appears to drive male dark-eyed juncos to find and win mates, but it comes with an evolutionary cost. Big fluctuations in testosterone may also cause males to lose interest in parenting their own young, scientists have learned. ...

Immune police recognize good and bad guys in the body

Immune system police are as good at recognizing bad guys, such as bacteria and viruses, as they are our own tissue, researchers say. The finding may cause a stir in the scientific community, which has long held that regulatory T cells or Tregs, preferentially respond to body proteins, or self a...

Who's afraid of the big, bad wolf? Coyotes

NEW YORK (September 11, 2007)While the wily coyote reigns as top dog in much of the country, it leads a nervous existence wherever it coexists with its larger relative, the wolf, according to a new study from the Wildlife Conservation Society. In fact, coyote densities are more than 30 percent low...

Separating the good from the bad

Scientists at MIT and Brown University studying how marine bacteria move recently discovered that a sharp variation in water current segregates right-handed bacteria from their left-handed brethren, impelling the microbes in opposite directions. This finding and the possibility of quickly and c...

When a good nanoparticle goes bad

Researchers at Cornell University recently made a major breakthrough when they invented a method to test and demonstrate a long-held hypothesis that some very, very small metal particles work much better than others in various chemical processes such as converting chemical energy to electricity in...

When cells go bad

SALT LAKE CITY -- When a cell's chromosomes lose their ends, the cell usually kills itself to stem the genetic damage. But University of Utah biologists discovered how those cells can evade suicide and start down the path to cancer. Details of how the process works someday may provide new wa...

How the brain handles surprise, good and bad

Whether its a mugger or a friend who jumps out of the bushes, youre still surprised. But your responseto flee or to hugmust be very different. Now, researchers have begun to distinguish the circuitry in the brains emotion center that processes surprise from the circuitry that processes the aversiv...

New research shows why too much memory may be a bad thing

New research from Columbia University Medical Center may explain why people who are able to easily and accurately recall historical dates or long-ago events, may have a harder time with word recall or remembering the day’s current events. They may have too much memory ?making it harder to filter ou...

Researchers examine why food tastes bad to chemotherapy recipients

About two million cancer patients currently receiving certain drug therapies and chemotherapy find foods and beverages to have a foul metallic flavor, according to a medical study. In general, more than 40 percent of hospitalized patients suffer from malnutrition due to taste and smell dysfunction....

How bad is malaria anemia? It may depend on your genes

Cell and animal studies conducted jointly by scientists at Johns Hopkins, Yale and other institutions have uncovered at least one important contributor to the severe anemia that kills almost half of the 2 million people worldwide who die each year of malaria. The culprit is a protein cells make in ...

Global study shows all tobacco bad for the heart

A major Canadian-led global study has found all forms of tobacco exposure, whether that be smoking, chewing or inhaling second hand smoke, increase the risk of heart attack. The study by professors Salim Yusuf and Koon Teo of the Michael G. DeGroote School of Medicine at McMaster University and ...

Finding a virus is not all bad news

Questions around the movement and population size changes of Kiwis, Tuatara and other New Zealand wildlife over the past hundred years have been continually studied by conservationists and scientists. It now seems the answers might all be found in the viruses that infect them. Dr Alexei Drummond...

Worms know bad food when they smell it

For most people, just a whiff of food that has made them sick in the past is enough to trigger a wave of nausea ?and to prevent them from eating that food again. It's a response that's instantaneous, involuntary, and so fundamental to basic biology that it occurs in a broad range of species. Even w...

What comes first…the chicken, the egg, or the bad attitude?

Researchers at the University of Alberta have discovered that chickens raised for meat can choose whether or not they'll funnel the nutrients they eat towards themselves or their eggs. That phenomenon of 'reproductive attitude' is a headache for producers who must figure out how to deal with les...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

Call it a chemical crystal ball. A new approach to predict whether a drug in development is likely to work and which dose is best could get antibiotics to market faster and more cheaply, say University of Florida researchers. In recent years, scientists worldwide have sounded the alarm: There sim...

New computer simulation helps explain folding in important cellular protein

...proteinschains of amino acids that must fold into three-dimensional structures to work properly. But when for any reason the ribbons fold incorrectly, bad things can happen, and in humans misfolded-protein disorders include Alzheimer's and Parkinson's diseases. Scientists have for the past three deca...

New research finds possible genetic link to cause of pregnancy loss and disorders

...he issue to females by mating both a male with one bad copy of the gene with a normal female and a female with a bad copy of the gene with a normal male. When the female carried the bad copy, there were fewer births. Further researc...

Sex involved in plant defense

...ant-eaters are attracted to them. Johnson says the nuanced results make sense. "Sex shuffles up genes and allows individual plants to get rid of bad genes and keep good ones," he said. "That helps them evolve defenses against generalist herbivores. Though there are short-term benefits to asexual re...

Probiotics help gastric-bypass patients lose weight more quickly, Stanford study shows

...r blockages, he hypothesized that a build-up of bacteria in the intestine bacterial overgrowth might be the culprit. "Bacterial overgrowth can be bad in that it changes your motility, how you empty," Morton said. "A lot of people aren't aware that we all carry about a lot of bacteria in our intestin...

Environmental cues control reproductive timing and longevity, University of Minnesota study shows

...ausing them to delay reproduction until the decline has occurred, when each offspring will make a bigger contribution to the gene pool. Conversely, if bad times turn to good times and the population is on the verge of a boom, reproducing sooner rather than later will help their genes thrive. "If the p...

A breath mint made from... coffee?

...ffee extract can inhibit the bacteria that lead to bad breath. New laboratory tests have shown that the e...or smelt. "Everybody thinks that coffee causes bad breath," says Prof. Rosenberg, "and it's often tru...nd some components in coffee that actually inhibit bad breath," explains Prof. Rosenberg. The findings we...

How to text message and avoid pain

...l, effective and independent with almost unlimited possibilities. But there are also risks. Those interviewed related health risks to long-term usage, bad work posture and reduced physical activity', says Gustafsson. ERGONOMICALLY CORRECT TEXT MESSAGING Don't sit in the same position for a long ti...

Targeting helpers of heat shock proteins could help treat cancer, cardiovascular disease

...ering them where needed. During stress, heat shock proteins, such as Hsp90, work to help proteins keep proper conformation and function. It can be bad news when they don't. When proteins start unfolding, amino acids that shouldn't get exposed can interact with other proteins to form unhealthy aggrega...

3 to 6 months to lose weight gained in pregnancy is normal

...xtra exercise. Very strenuous exercise programmes soon after childbirth did not lead to extra weight loss. This means that women do not need to have a bad conscience if they take it easy in the busy weeks after giving birth. However, Professor Sawicki stresses that even though the birth of a baby can thr...

Cancer-causing protein can also help fight the tumors it causes

... learn, the more they can exploit these cells to keep the human body healthy but Rechavi warns that not all the news may be good. "It could be that a bad protein is able to transfer from cancer cells to immune cells as well, upon acquiring such protein the immune system will be less active," says Rechav...

Infant formula adulteration with melamine underscores need for better detection methods

...ely, be compelling. Rigorously defined quality standards and test methods can give manufacturers and regulators powerful tools to catch and discourage bad actorshelping to restore a shaken public confidence." Some have separated considerations of "quality" from those of "safety." However, at a time ...

Huntington's disease deciphered

...velop these debilitating symptoms? We need to understand why the protein is bad at 40 but it wasn't bad at 4." The second problem, according to Brady, is that the gene is expre...

Gene activity reveals dynamic stroma microenvironment in prostate cancer

...e of the stroma. Dr. Ayala has shown previously that this correlates with a bad prognosis. We know the stroma are doing something to promote bad behavior in cancer cells." "These findings are very important as this is...
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