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Tag: "these" at biology news

Plants defy Mendel's inheritance laws, may prompt textbook changes

...mal or mutant copies of the genes. "It seems that these hothead-containing plants keep a cryptic copy of everything that was in the previous generation, even though it doesn't show up in the DNA, it's not in the chromosome," Pruitt said. "Some other type of gene sequence information that we don't really u...

UCSD discovery may help extend life of natural pesticide

...Raffi Aroian. "This latest paper demonstrates what these sugars actually do. They provide a receptor for th...rom the conceptual realm to the chemical nature of these sugar structures--how their atoms are arranged, and how the toxin binds to them." "Bt toxin, which ...

Scientists identify new model Of NK cell development

...logist and co-author of the study, discovered that these novel NK precursor cells are not randomly strewn t...etty interesting because we know that in order for these NK precursor cells to grow and differentiate, they need one of two cytokines, interleukin-2 or inter...

Study of genomic DNA leads to new advances in cancer diagnostics

...arcoma cells) and diagnostic biopsy samples. Will these methods help clinicians in diagnosing cancer? Beca...ed to determine the specificity and sensitivity of these methods before they are used in the clinical setting. Physicians and researchers alike know that ho...

White blood cell waste disposal system plays critical regulatory role

...or conditions characterized by abnormal numbers of these critical immune cells. Human neutrophils are whit...es exhibited elevated IL-23 and IL-17 levels. When these mice received an infusion of normal neutrophils that were capable of migration, the levels of IL-23 ...

New RNA polymerase discovered in plants

...d Pikaard. " We thought: 'What happens if we knock these genes out?' So, we knocked out the genes responsible for these subunits and there were no huge consequences. The plants survived, but there were slight delays in f...

Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer

...s that result in the initiation and progression of these tumors. It has been established that interfering w... of a protein called beta-catenin in the nuclei of these cells. Kaestner's group had earlier published research on a transcription factor called Foxl1 that ...

Agilent Technologies releases automated literature search tool for biology researchers

...ation (PubMed). The plug-in pulls information from these sources and represents it within Cytoscape as a ma...rs are focusing on proteomics and metabolomics for these diseases as a complement to Labs collaborators' work in genomics. Using Labs' systems biology inform...

The Bacteria's guide to survival

...anical strain on the membrane. Also, a majority of these genes were known to be induced by a family of proteins called mitogen-activated protein kinases, or MAPKs. The researchers showed that blocking MAPKs reduced the activity of several of the genes that are usually enhanced by infection with the normal ...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

... size and structure. One important application of these nanoporous nanoparticles lies in the production of...which are mirror images of each other. Only one of these molecules provides the therapeutic effect. In the production process, catalysts are used to selectiv...

Boosting HIV screening can increase survival and is cost effective

...roughly the same conclusions. "The publication of these papers represents a golden opportunity to jump-sta...ent approaches to HIV testing are still focused on these sub-populations. The result is that 280,000 Americans with HIV remain unaware of their infection. Ef...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

...ll occur in precancerous B lymphocytes, permitting these cells to become cancerous. This mutation inactivat...is abnormal behavior then triggers p53 to instruct these overzealous cells to undergo apoptosis. However, such rogue cells can still become fully cancerous ...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...gy we have to date, so when we open up the hood of these three organisms we actually have selective and poor vision," said Ideker. "Nevertheless, when we found protein interactions and communication pathways conserved across all three species we were more confident that we are seeing something real." Biol...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...cularly rainfall and temperature. Today, however, these services are compromised by the global problem of ...rce." "The release, maintenance or enhancement of these stores under a changing climate will in turn potentially affect future climate change." As temperat...

Falling ants glide back to trunk to avoid dangers of forest floor

...monkeys. There is some evidence, Dudley said, that these ants sometimes purposely drop off the tree to avoid predators, evidently secure in the fact that they can glide back to the same tree. "To me, one of the most intriguing elements of the story is that so many ants jump voluntarily," Kaspari said. "Th...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...“We biologists have always been amazed by how hard these muscles work. Now we have taken advantage of the f... and contract. The results suggest a model for how these powerful biological motors turn “on?and “off?during the wingbeat. “Small flying insects face an eno...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

...the pufferfish. Since the last common ancestor of these two species existed 450 million years ago, the aut...ions without any known genes—the identification of these clusters might lead to the discovery of new developmentally significant genes. While “in silico?dis...

Scientists discover that host cell lipids facilitate bacterial movement

...o form filaments at one end of the bacterium. "As these filaments lengthen, they drive the bacterium throu...ck and his colleagues decided to explore the roles these lipids play in Listeria infection. "We had expected to see PIP2 and PIP3 only at the very back of L...

UCSD team discovers specialized, rare heart stem cells in newborns

...to fully mature heart tissue. Called isl1+ cells, these cardiac progenitor cells are stem cells that have ...sure to other neighboring heart cells. And, since these rare cardiac progenitor cells are found in regions of the atrium that are normally discarded during ...

Scientists solve structure of key protein in innate immune response

...pocket are important in LPS transfer. Not only do these findings shed light on how cells recognize pathogens, they also may also lead to the development of drugs to help treat septic shock, an often fatal systemic bacterial infection that is triggered by LPS. "Pharmaceutical companies have tried to devel...

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