Tag: "spread" at biology news
Gene regulation, not just genes, is what sets humans apart
...genetic changes that aid survival and reproduction spread
throughout a species, has targeted the regulation of many genes known to be involved in the brain and nervous system and in nutrition, said Ralph Haygood, a post-doctoral fellow in the laboratory of Duke biology professor Gregory Wray. Haygood is l...
Weizmann Institute scientists discover a control mechanism for metastasis
...he first station of migrating cancer cells as they spread
to other parts of the body. In another experiment, the scientists examined the effects of drugs that block the growth factor receptors on the cell walls. In patients who received these drugs, the harmful 'plug' proteins had disappeared from the ca...
Weed gave up sex long ago
...y of plants to self-pollinate a big factor in the spread
ofweeds is much older than previously thought in one widely studied species,leading biologists say. The findings show that at least in plant evolution, sex with others may bemore trouble than its worth. The mustard-like plant Arabidopsis thalian...
High-intensity ultrasound may launch attack on cancer, wherever it lurks
...nd destroy cancer cells, including those that have spread
through the bloodstream to lurk in other parts of ...th primary tumors and metastatic cancers that have spread
to other organs -- all without the need for surgery, the research team reported in the Journal of Tr...
Genetic analysis finds greater threat in frog-killing fungus
...ow-legged frogs in the Sierra Nevada can likely be spread
by sexual reproduction, seriously complicating eff...frog's demise because of the pathogen's ability to spread
over long distances and possibly persist in the environment as a consequence of sexual reproduction,...
Multicenter study nets new lung tumor-suppressor gene
.... The LKB1-deficient tumors grew more rapidly and spread
more frequently than the others, and comprised all three types of non-small cell lung cancer -- squamous cell carcinoma, large-cell carcinoma, and adenocarcinoma -- rather than just one or two, Wong says. "This suggests that LKB1 plays a role at majo...
Defects in critical gene lead to accelerated lung tumor growth
...tumors that are more aggressive and more likely to spread
throughout the body. Defects in this gene appear..., these cancers are more likely to metastasize, or spread
to other organs. Clearly mice with lung cancers harboring LKB1 mutations do much worse than those...
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
... the Danish island of Anholt in 1928 as enthusiasm spread
quickly through the U.K., Norway and elsewhere. Abundant fish allowed recreational fishermen to establish the Scandinavian Tuna Club, which arranged bluefin tournaments in the straits between Denmark and Sweden until the early 1960s. The authors ...
Taming the anthrax threat
..., germinated, killed its host, and then escaped to spread
further. They identified several pathways and functions that helped the microbe survive and thrive, which could be targets for future drugs. Among a large number of genes shown to be highly active, the scientists picked one to study further, a prev...
'The Man Who Saved The Sea Turtles'
...uite successful among general audiences and helped spread
the message of conservation to the masses. For all of his many accomplishments, Archie Carrs greatest talent may have been his ability to build consensus, Davis said. He conveyed a folksy, non-threatening demeanor that enabled him to interact with ...
High rates of HIV infection documented among young Nepalese girls sex-trafficked to India
...e seen as a critical aspect of preventing both the spread
of HIV/AIDS and reducing a widespread and violent human rights violation. The authors assert that few resources have been devoted to the prevention of sex trafficking, particularly in relation to the large estimated numbers of affected individuals ...
Discovery in plant virus may help prevent HIV and similar viruses
...me process to multiply in their victims' cells and spread
disease. "After HIV infects a person, it must re...ruit the host's proteins in order to reproduce and spread
infection. Transcription in cells is the process in which a gene's DNA code is copied into RNA, whic...
Can the tonsils influence oral HIV transmission?
...sary factors to act as a transmission site for the spread
of HIV. The related report by Moutsopoulos et al, Tonsil Epithelial Factors May Influence Oropharyngeal Human Immunodeficiency Virus Transmission, appears in the August issue of The American Journal of Pathology. Human immunodeficiency virus (HIV) ...
Detecting transmissibility of avian influenza virus in human households
...t that animal pathogens may acquire the ability to spread
efficiently in humans but as yet have not. Monitoring the transmissibility of pathogens from animals in humans is therefore key for early detection of epidemic spread, and for effective control. In a study published in PLoS Computational Biology, th...
CTRC enrolls first patients in novel phase II study for sarcoma -- living virus destroys cancer cell
...se who have a bone or soft tissue sarcoma that has spread
to the lung and who are deemed by their physician to be unresponsive to or untreatable by standard therapies. These include patients with osteosarcoma, Ewing sarcoma family tumors, malignant fibrous histiocytoma, synovial sarcoma, fibrosarcoma and l...
Mucins stand guard against gut infections
... the authors determined that the prevention of the spread
of infection was exclusively due to Muc1 on the surface of gut epithelial cells. This is believed to be the first study in animals to demonstrate that cell surface mucins are a critical component of mucosal defense, and the role of these proteins in ...
JCI table of contents: July 19, 2007
... the authors determined that the prevention of the spread
of infection was exclusively due to Muc1 on the su... growth factor BB) contributes to tumor growth and spread
by enhancing the envelopment of newly formed vessels with stabilizing pericytes, and rendering new v...
Expert to provide update after 'worst tomato virus' hits California
...Extension office for testing. If the virus were to spread
and become established within the state, management strategies such as planting resistant varieties and implementing tomato-free periods can be implemented to minimize the virus' impact....
Study explains how pathogens evolve to escape detection
...ace' theory" that as pathogens develop new ways to spread
and attack organisms, the organisms in turn create novel defenses, each in a continuous battle to outdo the other, said Rosebrock....
Species detectives track unseen evolution
...rankfurt found evidence for cryptic species evenly spread
among all major branches of the animal kingdom. They also found that cryptic species were just as likely to be found in all biogeographical regions. The findings go against received wisdom that the insect or reptile branches of the animal kingdom a...
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