Tag: "formation" at biology news

Report assesses health implications of perchlorate ingestion

...s susceptible to disruption of thyroid function or formation of thyroid tumors than rats, and therefore the way rats responded to perchlorate exposure is not a good indicator of how humans would react. In the past, high doses of perchlorate were used to treat patients with hyperthyroidism, or excessive thyroid...

Study in Royal Society journal on sense of fairness in chimpanzees

... larger ones, bringing about an explanation to the formation of the transcription bubbles. Contact: Dr Juan Archilla, Departamento de Fisica Aplicada I, University of Sevilla, Avda Reina Mercedes s/n, SEVILLA 41012, Spain Proceedings of The Royal Society A: Mathe...

Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer

... contributions of the two types of damage to tumor formation is critical for the development of therapies that could help prevent skin cancer. Moreover, CPDs and 6-4PPs have particular potential to cause lasting damage to mammalian cells because photolyases a class of enzymes capable of efficiently repairing ...

Celebrex prevents adhesions after surgery

...ritis. However, they also inhibit angiogenesis, or formation of blood vessels, and Celebrex also inhibits fibroblast activity, important in scar formation. These three properties make Celebrex a particularly good candidate for testing, Puder says, since adhesions are made up of inflammatory cells, blood vesse...

Columbia researcher identifies cellular defect that may contribute to autism

...rs found that the loss of neuroligins perturbs the formation of neuronal connections and results in an imbalance of neuronal function. This imbalance provides an explanation for the neurodevelopmental defects in autistic children. "Understanding the cellular defects that may underlie autism-spectrum disorder...

New insight into regulation of blood stem cells

..., c-Myb is critical for very distinct steps in the formation of specific types of blood cells. Most surprisingly, the c-Myb mutants also had a dramatic increase in the total number of HSCs, suggesting that part of the normal function of c-Myb is to hold HSC multiplication in check. These data suggest that c-...

JCI table of contents

...pacity to induce generation of new heart cells and formation of new blood vessels two key components of successful myocardial repair. The results provide a foundation on which new approaches to repair the damaged heart can be based. TITLE: A clonally expanded novel population of multipotent stem cells derive...

Multi-purpose protein regulates new protein synthesis and immune cell development

...at this same signaling protein is required for the formation of immune cells called B lymphocytes. "This is a unique signaling pathway," says Randal Kaufman, Ph.D., a professor of biological chemistry in the U-M Medical School and an HHMI investigator. "In most pathways, there are multiple components and cross...

Single stem cells from bone heal a broken heart

...pacity to induce generation of new heart cells and formation of new blood vessels two key components of successful myocardial repair. The results provide a foundation on which new approaches to repair the damaged heart can be based....

Key mechanism in genetic inheritance during cell division identified

...s form rings around the microtubules and this ring formation promotes microtubule assembly, stabilizes against ... Howard Hughes Medical Institute (HHMI). "If ring formation takes place in vivo, it could be the mechanism by which chromosomes are kept segregated during mitos...

Progress toward a more targeted treatment of Alzheimer's disease

... try to find substances that are able to block the formation of plaques. A thorough understanding of γ-secretase is therefore critical. Diverse tissue-specific activity γ-secretase is divided into several entities, but until now scientists have assumed that the complex acts as a homogeneous unit. H...

Cell research signals cancer hope

...signals are 'mis-activated' they can result in the formation of tumours. Now, a team of researchers at The University of Manchester has discovered that the way cells communicate with each other is often more complicated than previously thought. The breakthrough should help in the fight against cancer as unders...

Cricket's finicky mating behavior boosts biodiversity

...te with males of other species, thus promoting the formation of new species. The scientists say their findings shed light on the role of individual choices in the evolution of species and the growth of biodiversity. "Animals with nervous systems and brains have preferences and can make choices," says Tamra Men...

Clues on cancer from a zebrafish model of melanoma

...shows that human BRAF mutations are sufficient for formation of large ectopic nevi that are highly melanoma-prone and provides a new tool for the exploration of melanoma genetics and drug development....

UCSD team discovers specialized, rare heart stem cells in newborns

...losure of any existing small heart defects and the formation of a completely mature heart in newborns." The UCSD team noted in the Nature paper that the next research steps with the isl1+ cells will be cellular transplantation in living animals to study their role in endogenous repair after cardiac injury. In ...

New system can measure productivity of oceans

...tudes, and illustrate important differences in the formation and demise of regional algal blooms. Researchers anticipate a fundamental change in how they can model and observe carbon cycling in the global oceans....

Scientists document complex genomic events leading to the birth of new genes

...onstruct the genomic rearrangements leading to the formation of the ancestral RGP locus. These events included a combination of duplication, inversion, partial deletion, and domain acquisition, and this was followed by a series of duplications that gave rise to each RGP family member. A total of eight RGP-fa...

Wnt signalling protein Dishevelled acts in the nucleus, not just in the cytoplasm

...may cause nuclear translocation of Dsh followed by formation of a stable beta-catenin/Tcf3 complex and transcriptional activation of target genes", explain the authors. Dsh's exact role in the nucleus, however, is still unclear. Dsh is also important in non-canonical Wnt signaling pathways, which involve prot...

Alcohol's effects on gene expression in the central nervous system

...ed synaptic function is characterized by increased formation of synaptic proteins. The stimulation of VTA dopamine neurons by alcohol increases the expression of genes involved in the synthesis of synaptic proteins in target regions of the VTA. In short, these results suggest that alcohol can produce changes...

Experiments provide proof of how traveling in groups protects insects

...d Darryl T. Gwynne showed experimentally that band formation indeed boosted insect survival. Sword is a research ecologist with the U.S. Department of Agriculture's Agricultural Research Service, Lorch is a postdoctoral fellow in biology at the University of North Carolina at Chapel Hill and Gwynne is a biolog...

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(Date:7/28/2014)... TEMPE, Ariz. - Reactions among minerals and organic compounds ... deep carbon cycle, they provide energy for the deep ... life. However, very little is known about how minerals ... Arizona State University have demonstrated how a common mineral ... negating the need for toxic solvents or expensive ...
(Date:7/28/2014)... Solanum pennellii , a wild relative of the domestic ... researchers including the labs headed by Professors Neelima Sinha ... Plant Biology. The new genome information may help breeders ... July 27 in the journal Nature Genetics , ... University in Germany. The UC Davis labs carried out ...
(Date:7/28/2014)... research has identified areas of the Earth that are ... change. , Europe is particularly vulnerable, as it has ... per cent, of any continent in ,refugia, areas ... environmental conditions remain relatively constant during times of great ... are mostly in Scandinavia and Scotland. , The ...
Breaking Biology News(10 mins):Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3Study finds Europe's habitat and wildlife is vulnerable to climate change 2
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