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Tag: "invasive" at biology news

Small, self-controlled planes combine plant pathology and engineering

...has important implications for the rapid spread of invasive plant and animal pathogens in the United States.” Schmale’s research is not limited to the study of Fusarium, however. He has expanded his interests to explore entire microbial populations in the atmosphere—a type of research he calls “aerogenomic...

Researchers demonstrate way to control tree height

... help control the spread of exotic and potentially invasive trees that are commonly sold by nurseries. The initial studies were done with poplar, Strauss said. Similar results should be possible in any tree species, but are limited by the lack of research into gene transfer methods for most ornamental and ...

Blood-brain barrier breached by new therapeutic strategy

...ugs directly into the brain. These methods involve invasive procedures that result in only localized delivery around the site of injection. The new research provides a safe and non-invasive method for delivering therapeutic molecules across the blood-brain barrier. It has the potential to be applied to the tr...

3-D ultrasound scanner provides in-depth view of the brain

...onal ultrasound scanner that might guide minimally invasive brain surgeries and provide better detection of a brain tumor’s location. The “brain scope,” which is inserted into a dime-sized hole in the skull, may be particularly useful for the bedside evaluation of critically ill patients when computed tomog...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...therapy has been attempted in the past, but older, invasive techniques required that therapeutic genes be injected directly into nerve cells. Strong pain relief resulted, but in some cases the injections caused nerve damage. "Our publication represents the first proof that gene therapy can work in a way th...

Catching cancer's spread by watching hemoglobin

... below the surface or through the use of minimally invasive probes, being developed in various labs, that can be inserted in the body. Meeting Paper: CTuF1, "Two-Photon Absorption Imaging of Hemoglobin," to be presented on Tuesday, May 8, 8 a.m. ?8:30 a.m. ...

Ecology in an era of globalization

...mpacts of human migration, production systems, and invasive species on ecosystems and people throughout North,...ustaining these services. Exploring the role of invasive organisms, Laura Meyerson (University of Rhode Island, US) and Harold Mooney (Stanford University, C...

Alien plants attack using 'resource conservation' as weapon, researchers say

...hreats to the world's ecosystems is the problem of invasive species-exotic plants, animals and other organisms...tudy by Stanford University researchers finds that invasive plants can flourish in low-resource environments by adopting efficient ways to use available resourc...

8 plants from South Africa may hold potential for treating high blood pressure

...own as the balsam apple Oxygonum sinuatum, an invasive weed with no common name Physalis viscosa, known as starhair ground cherry Senna occidentalis, a very leafy tropical shrub whose seeds have been used in coffee; called septic weed Solanum nodiflorum, also known as white nightshade ...

Scientists: As rainfall changes, tropical plants may acclimate

...at hold sway over pollinators, insect predators or invasive plants. "These plants should be able to do OK in terms of their nitrogen nutrition, even with the climate changing," said Ted Schuur, a UF assistant professor of ecology and one of four authors of the paper. "But of course, we only studied one gro...

Students invent protective pouch to enhance cell therapy

...ional radiologist can view and guide the minimally invasive procedure as it takes place. First, the doctor would insert the stainless steel outer stent, which would push out harmlessly on the elastic interior of the vein. Next, the doctor would insert the inner stent, surrounded by the porous nylon mesh. The ...

Whiteflies and plant viruses can help each other to speed up biological invasion

An invasive whitefly has developed mutualistic relationships w...survival, fecundity and population increase of the invasive B whitefly and an indigenous whitefly (called ZHJ1) on both virus-infected and healthy tobacco plant...

Scripps research study shows humans and plants share common regulatory pathway

...of these proteins." The Nod proteins recognize invasive bacteria, specifically distinct substructures found in Gram-negative and Gram-positive organisms. Once activated, Nod1 produces a number of responses that include activation of intracellular signaling pathways, cytokine production and apoptosis or pr...

Farmed salmon could become an invasive species in forest streams

...re is concern that farmed fish may become the next invasive species. "Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter Bisson. "Net ...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

... constellation of genetic events, and culminate in invasive and metastatic disease that can ultimately kill patients, one route is 100 percent fatal while the other is 50 percent curable," Hingorani said. "Until now we didn't understand why. What these studies suggest is that it's not just the total complemen...

Molecular differences between early and advanced melanomas could provide new drug targets

...g vertically beneath the skin and turn into deadly invasive cancers, scientists have found. Understanding thi...transform radial growth melanoma cells into highly invasive tumors via reactive oxygen pathways," says Dr. Arbiser. "This could provide us with promising targe...

Why doesn't the immune system attack the small intestine?

...nts from food and drink and protects the body from invasive microbes, is literally teeming with bacteria, which help break down waste. The presence of so many bacteria is a potential trigger for an immune system response. Why do T cells almost always ignore the small intestine, leaving this vital tissue unhar...

Whitefly spreads emerging plant viruses

... obscure whitefly, B. tabaci is now among the most invasive and economically damaging insects to agriculture, spanning food and fiber crops, and certain nursery grown ornamentals, with the ability to infest more than 500 plant species," she said. This whitefly and the plant viruses it transmits are no long...

New measure of sexual arousal found for both men and women

... Journal of Sexual Medicine. "Previous testing was invasive and involved placement of measuring instruments in various locations in the genital region and this interfered with the arousal itself. Thermography does not have any such requirements and is very user-friendly. This may be the first test to diagnose...

Cryoablation -- A new treatment option for some kidney tumor patients

... returning home. Surgeons continue to seek less invasive methods than the traditional radical nephrectomy (removal of cancerous kidney) for the treatment of small tumors, and percutaneous cryoablation is now on the list. With the incidence of kidney cancer steadily increasing over the last 20 years, and t...

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