Tag: "looked" at biology news

Newly created cancer stem cells could aid breast cancer research

...ed from normal breast cells for laboratory studies looked different. Ince suspected that researchers were transforming the wrong type of cells. Now an independent investigator at Brigham and Womens Hospital and an instructor at Harvard Medical School, Ince developed a recipe for a new chemically defined c...

Gene regulation, not just genes, is what sets humans apart

...e research journal Nature Genetics. His group looked at the regulatory sequences immediately adjacent t...es in the human brain. Though many studies have looked for significant differences in the coding regions of genes relating to neural system development and...

New, more direct pathways from outside the cell-to-cell nuclei discovered

...t way," Gavin said. Thereafter, Gavin periodically looked for this intriguing behavior again, and occasionally glimpsed it again. But Gavin remained unable to systematically search for phagosome clusters around nuclei until he received NSF funding in 2006 to purchase a confocal microscope, which provides ...

Conventional plowing is 'skinning our agricultural fields'

...lanced with soil creation," he said. Montgomery looked at data from more than 1,650 measurements published in more than 200 studies examining various aspects of farming practices, soil creation and erosion. His findings are being published this week in the online edition of the Proceedings of the Nationa...

In limiting life span, study finds booming bacteria innocent

...cteria with age in greater detail, the researchers looked to flies. Drosophila flies are emerging as an ideal model system in which to study most aspects of immunity, including innate immune pathwayswhich represent the bodys first line of defensecellular immunity, and the metabolic effects of infection, Tow...

Macho men are seen as bad choice for long-term love

...ms of all personality traits compared to those who looked unhealthy. Similarly, older faces were generally viewed more positively compared to younger ones. Professor David Perrett from St Andrews University adds: Our research also found that it is mens health that conveys all round good qualities for part...

Study: Sticking to the sand might not be such good, clean fun for beachgoers

...indicator bacteria. Moreover, when the researchers looked closely at the sand quality at a popular beach in ...to fecal input," Boehm said. "But in this case, we looked closely at Lovers Point, and there were actually signatures of human waste." In fact, Boehm recall...

Anthrax bacterium's deadly secrets probed

... to explain its inability to grow in soil. When we looked at the secreted proteins, we found that theyre not adapted to utilise molecules in the soil, says Professor Harwood. However, they do enable Bacillus anthracis to grow in an animal host. Some breakdown animal protein such as muscle fibres, others a...

New mechanism links smoking to lung damage

...growth and differentiation. In this study, they looked at the effects of oxidative stress on unpaired (or non-junctional) hemichannels found in the membrane of cells from the lungs and the heart--the primary targets of cigarette smoke. When they exposed these cells to low levels of an extract made fro...

Disabling a sensory organ prompts female mice to act like male mice

...behavior. To try and ferret out its cause, they've looked at everything from the influences of hormones such as testosterone to anatomy, positing that there may be a region of the brain that organizes gender-based behavior. The sensory-controlled neural switch that governs the circuit is most likely diffe...

How cells change the pace of their steps

...trate. In videos recorded as the cells moved, each looked like an irregularly shaped water balloon attached firmly on two sticky sections while periodically protruding in the forward direction and withdrawing from the trailing end. In humans and other mammals, cell motility is essential for many physiolog...

Coelacanth fossil sheds light on fin-to-limb evolution

...nd very diverse. Until now, many biologists have looked at lungfish as a primitive model of the evolution of tetrapods. Our fossil shows that what weve been using to define a primitive state is actually very specialized, Friedman said, which means it might give a deceptive view of what evolution was like ...

Handicapping tuberculosis may be the way to a better vaccine

...d with the mutant strain and then infected with TB looked like theyd never had TB at all. The pathologist we sent these lung sections to was amazed, said Jacobs. He said hed never seen anything like it. A year after infection with TB, less than 25 percent of the BCG-vaccinated mice had survived. In contras...

U-M researchers find family of 'on switches' that cause prostate cancer

... of the prostate cancer cell lines the researchers looked at. The genes involved are all controlled by a different mechanism. For example, four of the genes are regulated by androgen, a male sex hormone known to fuel prostate cancer. Androgen deprivation is a common therapy for prostate cancer. Knowing wh...

Molecule blocks gene, sheds light on liver cancer

...gh levels in many kinds of cancer cells. The study looked at a gene called PTEN (pronounced P-TEN), which normally protects cells from becoming cancerous. Researchers know that the abnormal silencing of this tumor-suppressor gene contributes to the development of liver cancer and other malignancies. The ...

Stem cell therapy rescues motor neurons in ALS model

...study at UW-Madison's Waisman Center. "But when we looked at the function of these animals, we saw no improvement. The muscles aren't responding." At present, there are no effective treatments for ALS, which afflicts roughly 40,000 people in the United States and which is almost always fatal within three ...

Research teams uncover risk genes for multiple sclerosis

...n genetic variations between individuals. The team looked for variations that were more commonly inherited by people with MS compared to samples from people without the disease. Until now, the only genetic link identified with MS was in the major histocompatibility complex (MHC), a large cluster of genes...

Caffeine and exercise can team up to prevent skin cancer

... four groups of UVB-treated mice, the Rutgers team looked at physical changes in the cells. The scientists also relied on chemical markers, such as caspase-3 an enzyme that is involved in killing DNA-damaged cells and p53, a tumor suppressor. The differences between the groups in the formation of UVB-in...

Risk genes for multiple sclerosis uncovered

...common genetic variations between individuals, and looked for variations that were more commonly inherited by people with MS compared to samples from people without the disease. To double-check the findings, they performed a second analysis of other sets of families, individual cases of MS, and a control gr...

New research identifies anti-viral protein that may predict who might be at risk to develop lupus

...ecial Surgery. But otherwise, those family members looked and felt perfectly fine. All of their diagnostics were normal. Our immune system works by distinguishing self from non-self, so that it preferentially attacks foreign microbes. Interferon-alpha is normally a helpful molecule in this regard, leading...

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(Date:10/16/2014)... tract infections and worldwide claims the lives of ... Ghent University have succeeded in developing a promising ... , Xavier Saelens (VIB/UGent): "We discovered a ... the development of a novel approach to vaccination ... numerous small children and elderly people." , ...
(Date:10/15/2014)... ,Models of Life, is a non-traditional biophysics textbook and ... book is a journey of discovery into biological systems ... and biological regulation. It is about how our genes ... between the billions of cells in an organism. It ... between principles, which can be found on both large ...
(Date:10/15/2014)... will be awarded the 44th Rosenstiel Award for Distinguished ... pioneering research exploring the mechanisms of genomic instability and ... Alt is the second alumnus to win the Rosenstiel ... in 2003. , Alt is the Charles A. Janeway ... Medical School and an investigator at the Howard Hughes ...
Breaking Biology News(10 mins):New perspectives for development of an RSV vaccine 2New book about life as seen from physics 2Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2
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