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Tag: "fighting" at biology news

New bacterium discovered -- related to cause of trench fever

...e species that caused trench fever in WWI soldiers fighting in Europe 80 years before. The work was published in “The New England Journal of Medicine” in 1992. Several years later, her team discovered that the Bartonella henselae bacterium causes cat scratch disease, an infection that causes swollen lymph...

Study shows big power of small RNAs, not just proteins, in halting cancer

... completely new dimension of this critical cancer fighting pathway and its ability to trigger the genetic death of cancer cells. “Our findings certainly lead to a deeper understanding of a critical tumor suppression mechanism but also may provide insight into how to best engage the p53 pathway to treat canc...

Massive herds of animals found to still exist in Southern Sudan

... U.S. Fish & Wildlife Service. After years of fighting northern Sudan, Southern Sudan formed an autonomous region as part of a 2005 peace agreement, and will hold a referendum on independence in 2011. “I have never seen wildlife like that, in such numbers, not even when flying over the mass migrations...

Study shows lizard moms dress their children for success

..., the aggressive orange-throated males are so busy fighting with other lizards that they are especially vulnerable to predators. As a result, the predators are likely to focus on them, giving a survival advantage to lizards with different patterns. After Lancaster released the lizards from her breeding exp...

Ancient retrovirus sheds light on modern pandemic

...ound that changes in TRIM5a that make it better at fighting HIV actually inhibit its ability to stop PtERV1 an...cates that this antiviral gene may only be good at fighting off one virus at a time. Uncovering the story of TRIM5a's role in battling one ancient retrovirus ...

Mule deer moms rescue other fawns

... effective aggressive defence because they rely on fighting to protect themselves against predators year-round, while whitetails and many other species restrict aggressive defence to just the youngest fawns. Whitetails rely on flight rather than fight for most of their lives, so this may affect their ability ...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

...essful vaccination, the body experiences a quicker fighting response to the infection, which lessens or completely avoids the symptoms of illness." Unlike some other diseases, getting vaccinated following exposure to smallpox could provide protective effects. For example, for the flu vaccine to work, peopl...

Mice with a migraine show signs of brain damage

... diminished supply. It’s like a pride of lion cubs fighting for their mother’s milk ?a few may get nudged away, go without, and will eventually die. In a brain in the midst of cortical spreading depression, brain cells closest to oxygen-rich blood vessels survive, while cells further away don’t get access to ...

Alien plants attack using 'resource conservation' as weapon, researchers say

...ive species," Funk said. Current techniques for fighting invasive species typically involve early detection followed by a variety of removal methods, such as weed-whacking or introducing natural predators of the invasive plants, said study co-author Peter Vitousek, professor of biological sciences at Stanf...

Molecule that destroys bone also protects it, new research shows

... system called neutrophils play a critical role in fighting infections. In fact, humans with neutrophil defects usually lose all their teeth by the time they are 20 due to severe periodontal disease. "It turns out that IL-17 is really important in regulating neutrophils by causing other cells in the vicin...

Gene thought to assist chemo may help cancer thrive

...ndings raise the possibility of a new strategy for fighting cancer - namely, developing drugs to disable the functioning of this gene in the tumors of patients undergoing chemotherapy. The results appear in the May 16 edition of the open access journal PLoS ONE. “P53 has long been recognized as a key playe...

Natural antibiotics yield secrets to atom-level imaging technique

... response to invading pathogens. In addition to fighting bacteria, AMPs attack viruses, fungi and even cancer cells, so drugs designed to mimic them could have widespread medical applications, said Ramamoorthy, who is an associate professor of chemistry and an associate research scientist in the Biophysics...

UCSD researchers discover variants of natural tumor suppressor

... pathway in diabetes and PHLPP2 could be useful in fighting heart and neurological disease. "We first discovered that PHLPP controls Akt, which is the driver on the pathway to tumor growth," said Newton. "PHLPP is like a brake that, when on, slows the driver but when 'off' allows the driver to move. In ...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...immune reaction generally considered effective for fighting off the flu, with the larger dose creating a stronger immune response. The side effects of the vaccine were the same as those usually reported from a typical flu shot ?mainly mild arm pain. Then, in the months that followed, there were seven cases...

Female Antarctic seals give cold shoulder to local males

...e traditionally viewed as being dominated by males fighting with each other for the right to mate with passive females. So it's not only remarkable to uncover active female choice in such a system, but this also suggests that female choice may be more widespread in nature than we previously thought." Studi...

Male reindeer inflate a large air sac in the neck region to emit their hoarse rutting calls

...ood by rival males as an indicator of the caller's fighting ability. By contrast to male red deer, who are renowned for roaring with the head elevated, male reindeer emit a hoarse rattling with the head kept low. In this posture the inflated air sac expands the neck region. Both acoustic and optical displa...

Hybrid molecule causes cancer cells to self-destruct

...believe it represents a promising new strategy for fighting the deadly disease. "For a long time, cancer re...did not pay much attention to the use of sugars in fighting cancer," said Gopalan Sampathkumar, a postdoctoral fellow in the university's Department of Biomedic...

A rarity among arachnids, whip spiders have a sociable family life

...cused mainly on the adult's dramatic courtship and fighting behaviors. Rayor believes that because young amblypygids slip easily into tight crevasses and their coloring matches their backgrounds, the social behavior of the youngsters has been missed in the wild. Rayor's research on two species in captivity ...

Technology reveals 'lock and key' proteins behind diseases

...rters function and help researchers gain clues for fighting disease and drug resistance." Using iMYTH, the Stagljar lab identified six proteins that interact with and presumably communicate with the ABC transporter Ycf1p, a yeast version of the human proteins CFTR and MRP. These newly discovered protein ...

Turning green gunk to gold, anti-cancer gold

...trick to turning the green gunk into gold---cancer fighting gold. "It was simply too difficult to use the native blue-green algae for high-level production using traditional fermentation approaches," said Sherman. But the compound, called cryptophycin 1, held so much promise as an anti-cancer drug that or...

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