Tag: "stop" at biology news

MGH-Led Team Finds Gene For Crippling Neurologic Disorder

...clue to help us find that trigger and, we hope, to stop it." The members of this research team have been searching for the DYT1 gene since the early 1980s, when many of them worked together at Yale University. In 1989, they discovered the first marker for the gene, which localized it to a segment of chr...

Discovery Of Genetic Pathways May Provide New Ways To Combat Candida Infections

...and that inactivating one pathway is not enough to stop filamentation. Inactivating both pathways, on the other hand, renders Candida harmless to both macrophages and mice. Background Fungal infections in hospitalized patients have almost doubled throughout the 1980s, often with life-threatening result...

Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues

...facing low-oxygen conditions, ovarian cancer cells stop proliferating butstill invade healthy tissue. ...ents.It bodes poorly when cancer cells in patients stop proliferatingunder low-oxygen conditions, like those found deep inside a largetumor, because radiati...

UF Researcher Designs Pill To Control Mosquitoes

... the diet pill could save lives. "We hope this can stop the advance of malaria and other mosquito-borne diseases," said Borovsky, an insect biochemical and molecular biologist at the Florida Medical Entomology Laboratory, a part of UF's Institute of Food and Agricultural Sciences. "It works on all mosquit...

Banning Chemicals To Protect Ozone May Aggravate Global Warming

...d a professor ofatmospheric sciences. "We need to stop looking at these issues asthough they are separate from one another, and start considering them togetherwhen we determine environmental policy." In the Nov. 7 issue of the journal Science, Wuebbles and colleague JamesCalm, an engineering consultant ...

Genetic "Short Circuit" Leads To Cleft Palate

...is altered so much that palate tissues practically stop growing and a cleft forms in the roof of the mouth. The three key components of the circuit are the growth factor receptor IGF-IIR (hyperactive gene), the growth factor TGF-2, and Cdk4, a protein that drives cell division. Equivalent molecules are...

Cellular Engineers Design Custom Cell Surfaces Able To Adhere To Synthetic Materials

...he interestsof Bertozzi's cell-surface group don't stop there. "We're investigating thecells of other organisms, such as plants and microbes. We're looking intobiosensors, in which cells designed to lock onto specific compounds can becombined with an electronic, transducing substrate to signal changes in ...

3-D Structure Of HIV Components May Pave The Way For New Anti-AIDS Drugs

...icatesthat such custom-designed drugs may not only stop viral spread, but also couldbe safe for patients. The Summers and Borer groups also have determined the structures of the isolatedprotein and RNA components. Because HIV and other retroviruses require anucleocapsid protein to package viral RNA, th...

Careful Honeybee Breeding Combats Tracheal Mite Pests

...cause they’velost their ability to fly. They stop foraging and feeding their young sothe population dwindles. They also develop secondary infections causedby bacteria or fungi. In that condition, they can’t defend their hivefrom invaders. The mites continue to spread because healthy bees fro...

Good Ergonomics Is Good Economics

...mmunication). Center high-mounted automobile rear stop lamp. The center high-mounted stop lamp (CHML) is perhaps the best-known ergonomic improvement to a widely used consumer product. In th...

Biologist Experiments With His Own Front Yard

...re going on right underneath our nosesand we never stop to see them and think... People are overlooking some really intriguing aspects of theworld they live in when they do that." And with insects, one of the intriguing things is sex. In species after species, Alcock shows howdifferent and complicat...

Salve From Serpents? UD Studies May Explain Why Viper-Venom Protein Stops Tumor Spread In Mice

...h Miele, she will focus on whether eristostatincan stop cancer cell growth. McLane's work, funded by the ...though she suspects that eristostatin's ability to stop thespread of tumors in mice may be mediated by an integrin receptor, which cancercells have in commo...

Engineering Our Arteries: Replacements And Assisted Healing

... including assisted healing that will stop clotting and allow healthy cells to grow. She is working to grow arteries by developing scaffolding materials on which genetically engineered cells can be planted. Like surgical sutures, the scaffold dissovles a...

Researchers Take Major Step Toward Cracking Ebola Code

... hinders an early inflammatory response that might stop the virusfrom replicating. The second part of the glycoprotein 1-2 punch comes from the transmembraneversion of GP. This version attaches to endothelial cells, possibly clearingthe way for the Ebola virus to enter into the cell where it begins itsde...

Scientists Invent Faster Gene Function Identification System

...demy of Sciences. "Our system allows us to stop gene expression long enough to study thegene, then...il now, studies using ribozymes as the catalyst to stop proteinproduction have worked only in cells. Wagner's research is the first to work inanimals. The s...

Discovery By Fertility Specialist Offers Promise Of Reducing Multiple BirthsTied To Fertility Treatment

... the cycle, estrogen signals the pituitary to stop producing FSH, a signal that at least one egg follicle is well and being nurtured. The drop in FSH stops more follicles from developing, all immature follicles die, but the "recruited" follicle lives. ...

Allergies To Rubber Affect 12.5 Percent Of Health Care Workers

...lton. "By stopping exposure, we should beable to stop the sensitized but asymptomatic group from developing symptoms." Examination and surgical gloves are believed to be the main risk factorsfor health care workers, but other stretchable rubber objects, such as balloonsor condoms, can cause a r...

UNC-CH Researchers Discover Key Cancer Control Mechanism

...pens in about 40 percent ofhuman cancers, it can't stop the MDM2 from degrading P53. Then there's notenough P53 to fight tumors." On a one-to-10 scale, Yarbrough said he thought the new finding rated a10. He is interested in the research because he performs surgery on head- andneck-cancer patien...

Using PET Scans To Monitor Cancer Cells' Activity And Predict Who Will Develop Alzheimer's, Other Diseases

...ssess therapeutic interventions that would seek to stop or reverse themetabolic alterations on these degenerative diseases, according to Phelps. On January 1, he said, the federal government began reimbursingphysicians who used PET scans for diagnosing a...

Shuttle Mission's "Neurolab" To Study Nervous System

...ally signals developing statoliths and otoliths to stop growing. "Inspace, however," says Wiederhold, "without this signal, they should develop to alarger size than they do on Earth. And if indeed they increase in size, howwill that affect these animals?" Scientist Steven Highstein of the Wash...

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