Tag: "enters" at biology news

Research out this week helps us understand basics of how neurons communicate

...munication between nerve cells occurs when calcium enters a nerve cell and causes the cell to release a chemical called a neurotransmitter that then carries a signal to other nerve cells. Calcium cannot freely enter cells, and must wait for an opening of a molecular gate, which is called a calcium channel. ...

UT Southwestern researchers uncover process for sugar-induced fat formation

...hydrates are broken down during digestion. Glucose enters the bloodstream and, through transport molecules, enters cells where it is broken down into even smaller pieces. These smaller pieces are diverted from the e...

Hurricane Ivan helps student study sinkholes

...s in through a fissure or cave opening and rapidly enters the aquifer. "People up and down the Shenandoah Valley get their water from aquifers," Schwartz said. "Often, these aquifers are contaminated. Sources of contamination include runoff from paved surfaces or because a good portion of Virginia's agricu...

New findings may redirect strategies for treatment of prostate cancer

...ent may work for some time, the disease eventually enters an androgen-refractory period where the signaling molecules downstream of the AR are active even with very low levels of androgen. A considerable amount of effort has gone into dissecting the signaling pathways that regulate the AR to look for pharm...

New HIV co-factor found

... to new approaches for inhibiting infection as HIV enters the body. Nearly a decade ago, this group of NIH s...ly provide a way to inhibit infection as the virus enters the body....

US trees affected by growing number of health concerns

...eas and finding new hosts. White pine blister rust enters through needles and bark and forms cankers on the branches and trunks, eventually causing death. Rare pines in fragile ecosystems are now threatened by this disease. Plant pathologists use a variety of methods to manage these and other tr...

Less fat makes better process for designing new drugs

...s, and they are the gatekeepers that regulate what enters and leaves a cell, explained Martin Caffrey, professor of chemistry at Ohio State. To design a drug that will target a particular protein, scientists need to view the protein's structure in detail, and that involves removing the protein from the cell...

Scientists reveal molecular secrets of the malaria parasite

...ates proteins that are switched on as the parasite enters the mosquito. Hall's group identified the gene regulation by comparing the genes expressed in the sexual stage transcriptome with the proteomes of both the sexual stage and a developmental stage in the mosquito. Several genes were identified for wh...

Columbia research lifts major hurdle to gene therapy for cancer

...at will only kill cancer cells even if the therapy enters normal cells. As an example, the researchers constructed an adenovirus that carries the PEG switch and a toxic protein. The switch and the protein were connected to each other so that the deadly protein is only unleashed inside cancer cells when the ...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...he metabolic byproducts that retain the carbon-11) enters and clears the various organs. The radiotracer decays and completely clears from the animal's body in about two hours. After the procedure, the animals were returned to their social colony to deliver their offspring. The combined images show that co...

Falling canopy ants glide home

...ing 3.5 miles. An ant falling to the forest floor enters a dark world of mold and decomposition, of predators and scavengers, where the return trip is through a convoluted jungle of dead, accumulated leaves. Gliding is definitely the way to go, and we won't be surprised if we find more examples of this beh...

The oldest Homo sapiens

...ana. Lake levels now are much lower, and the river enters the lake about 60 miles (100 kilometers) south of Kibish. The 330-foot-thick (100-meter-thick) formation is divided into at least four members, with each of the four sets of layers separated from the other by an "unconformity," which represents a p...

Antibody that neutralizes most HIV strains described by scientists at The Scripps Research Institute

...neutralizing antibodies attack the virus before it enters cells, they can prevent HIV infection if they are present prior to exposure to the virus. An HIV vaccine would seek to elicit these neutralizing antibodies -- just as existing vaccines against diseases such as measles, polio, hepatitis B, and hepatit...

Tailing the cause of a rare heart disease

...t enter the cell nucleus. Only if the eya4 protein enters the nucleus can it play the appropriate role in gene regulation, said Seidman. "That finding suggests that this mutation causes a dramatic reduction in the amount of eya4 within the nucleus, and we presume that is what accounts for heart disease," sa...

Researchers investigate 'whole farm' approach to reduce dairy pollution

..."(We will be) tracking phosphorus from the time it enters the farm until it leaves it."...

Wetlands clean water and may control neighborhood flood problems

... at the golf course's east end where surface water enters the course. The fourth monitor was at the northwest end where water leaves the course and enters the celery bog. The scientists also measured how much water entered and how fast it flowed through t...

Study: Turkey hunting most dangerous, deer hunting most deadly

...sion. The commission investigates the incident and enters data such as species being hunted, topography and distance from shooter to victim into the Hunting-Related Shooting Incidents (HRSI) database. To assess the impact of a change in regulations for fluorescent orange clothing, the pre-change to post-cha...

VUMC researchers find drug-resistant bacteria MRSA a growing threat

...the skin and infiltrate the bloodstream. Once MRSA enters the bloodstream the bacteria can cause devastating staph infections. The organism can be difficult to control because its early symptoms are so benign, and because those who are infected frequently delay seeking medical intervention until the organi...

Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals

...ed a replication-defective adenovirus that readily enters cells but doesn't reproduce itself. Ahrens injected the vector carrying the MRI reporter gene into brains of living mice and imaged the MRI reporter expression periodically for over a month in the same cohort of animals. The research showed no overt ...

DFG awards 2005 Heinz Maier-Leibnitz Prize

...ibit an allergic reaction. If, for example, pollen enters an allergic person's body, it immediately triggers the creation of a large number of antibodies. It is, however, only the so-called IgE receptors that connect the antibodies to the reactive cells and send the signals that cause reactions like itching...

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Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
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