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Tag: "explains" at biology news

Ancient immune defense mechanism is no match for HIV-1

...s and invertebrates to higher vertebrate animals," explains Dr. Jeang. "Our finding that Tat is an SRS also he...not elude by using the point mutation mechanism, " explains Dr. Jeang. The researchers include Yamina Bennasser and Kuan-Teh Jeang of the National Institute of...

Alcohol consumption disrupts breastfeeding hormones

...pino, PhD, a Monell developmental psychobiologist, explains the implications, "Under normal breastfeeding conditions, oxytocin and prolactin usually behave in tandem, such that sucking-induced breast stimulation results in transient release of both. However, following alcohol consumption we saw divergent resp...

An (ecological) origin of species for tropical reef fish

...no longer interbreed and become new species. What explains the evolution of a huge number of closely related fish species on reefs in an open undersea world where currents constantly stir the waters, washing in fish or their larvae from afar, a world without well-defined geographical barriers? Rocha et al. t...

A probe, not an echo

...monly used echo mode, to create the 3-D image. He explains that in traditional hand-held ultrasound systems, sound waves are broadcast into the tissue, and the echoes produce an image of the reflecting interfaces ?that is, the sound transmitter and the receiver are both on the same side of the sample. Howev...

B cells are required for development of epithelial cancer associated with chronic inflammation

...matory states that potentiate cancer development," explains Dr. Coussens. "Pharmacological interventions attenuating B cell activation or blocking B cell-mediated recruitment of innate immune cells may be effective in preventing premalignant progression." ### The researchers include Karin E. de Visser, Lidi...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

... to control pests, he said. In the book, Waldbauer explains many historic and recent examples of how people control pests without insecticides. For example, in 1886, the cottony cushion scale (Icerya purchasi), accidentally imported from Australia, threatened California's early citrus industry. At times thes...

Active Vaccine Prevents Mice From Developing Prion Disease

...animals from developing symptoms of prion disease, explains Thomas Wisniewski, M.D., Professor of Neurology, P... animals and are thought to be transmitted orally, explains Dr. Wisniewski. The version of prion disease that affects humans usually occurs spontaneously, and o...

Scientists find viruses can't stick to sea bugs in the dark

...cyanobacteria must take light into consideration," explains Ying Jia. Algal blooms can use up the oxygen in water and block out the sunlight that other organisms need to live. "If there is not sufficient light, the spread of the phage might be decreased, which could undermine the efficiency of phage treatment...

Lipids get new comprehensive classification system

...patible with modern-day informatics requirements," explains the paper's first author Dr. Eoin Fahy, of the San...categories, classes and subclasses in the future," explains Dr. Fahy. "The first two characters (1-2) of the ID contain the database identifier (e.g. LM for LIP...

High fidelity keeps human DNA assembly line humming

...ttention has been given to how RNA is made. Burton explains that it is similar to an industrial assembly line,...is. "This is a tried and true design and our study explains why this is an enduring design." The paper, "Dynamic Error Correction and Regulation of Downstream ...

Scientists map the world for nature conservation

...n accordance with a common geographical standard," explains Gerold Kier, head of the project at Bonn University's Nees Institute for Plant Biodiversity. This work, says Kier, represents a significant advance because the results are needed both for nature conservation planners and those engaged in basic resear...

Community MRSA is re-emergence of 1950s pandemic, study suggests

... descendent share many of the same features, which explains why 1950s pandemic was so successful, but also shows why community acquired MRSA could pose such a serious public health challenge in coming years. "The community acquired MRSA clone has a toxin and other traits with a proven track record for causin...

U of T researchers map role of Epstein-Barr virus in cancer

...reasing the risk of becoming cancerous." Frappier explains that all cells contain the two proteins ?p53 and USP7 ?that work together to regulate cell growth. P53 is an important protein whose level in the cell determines whether cells will continue to proliferate or stop dividing and die. USP7 is a protein t...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...in a living organism, but they are not essential," explains lead investigator professor Geoffrey M. Wahl. "Thi...udy caused a big shift in how we think about p53," explains Salk scientist and first author Kurt Krummel. "You have to look at all interacting partners because ...

Moffitt-USF head toward first human trials of anti-cancer drug that targets protein AKT

...to hyperactive Akt and cannot survive without it," explains Saïd Sebti, Ph.D., Moffitt's Manuel and Adeline Garcia Professor, Leader of the Drug Discovery Program and Associate Director of Moffitt Research Institute. "What we discovered is a tailored therapy for tumors with a specific molecular signature." R...

MIT engineers an anti-cancer smart bomb

...loon within a balloon, resembling an actual cell," explains Shiladitya Sengupta, a postdoctoral associate in Sasisekharan's laboratory. In addition to Sasisekharan and Sengupta, the co-authors are David Eavarone, Ishan Capila and Ganlin Zhao of MIT's Biological Engineering Division; Nicki Watson of the White...

Newest HIV drugs should be used with FUZEON(R)

...pranavir and has remained undetectable ever since, explains "This new combination of treatments has really improved my quality of life. Getting back to undetectable and seeing my CD4 count increase from 20 to 268 has changed my outlook on life. I believe I can plan for the future, which I didn't even consider...

Certain fish have a special mating preference

...ological trait," he said. "This at least partially explains the variability in male genital morphology." Using this study as a springboard, Langerhans is exploring the role of genital divergence in the process of speciation. Divergence in a copulatory organ might be especially important in speciation -- owin...

IMF Launches World’s First DNA Database for Myeloma Patients

...ological trait," he said. "This at least partially explains the variability in male genital morphology." Using this study as a springboard, Langerhans is exploring the role of genital divergence in the process of speciation. Divergence in a copulatory organ might be especially important in speciation -- owin...

Scientists inhibit cancer gene

...ol of Medicine and lead investigator on the study, explains that the research team had originally been testing a group of enzymes that regulate the function of the Ras gene. These enzymes, called diacylglycerol kinases (DGKs), are implicated in tumor growth. "When we began our investigation using a type of D...

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