Toxic in Biological News

Carbon nanoparticles toxic to adult fruit flies but benign to young

... "The point is these same compounds that were not toxic to the (fruit fly) larvae were toxic to the adults in some cases, so there may be analogies to other toxic effects from fine particles," Rand, a ...

New way to make sensors that detect toxic chemicals

... to make materials for gas sensors that detect toxic industrial chemicals (TICs) and biological ... who develop solid materials that can detect toxic chemicals. The challenge, she said, is to ... oxide's electrical conductance changes when toxic chemicals in the air settle on its surface. Beach ...

New crops needed for new climate

... in Victoria, Australia have found an increase in toxic compounds, a decrease in protein content and a ... glycosides, which break down to release toxic hydrogen cyanide, increased in plants in elevated ... content decreased, making the plants overall more toxic as the ability of herbivores to break down ...

A thirst for blood sparks toxic algal blooms

... The blooming of toxic algae that occurs during the summer conceal a ... Department of Marine Ecology. The blooming of toxic algae in the oceans and lakes is a familiar ... of a considerably more aggressive behaviour: toxic algae injure or kill competing algae in order to ...

New crops needed for new climate

... in Victoria, Australia have found an increase in toxic compounds, a decrease in protein content and a ... glycosides, which break down to release toxic hydrogen cyanide, increased in plants in elevated ... content decreased, making the plants overall more toxic as the ability of herbivores to break down ...

Brain protein central to both Parkinson's, drug addiction identified

... and out of cells, plays a critical role, bringing toxic chemicals to the doorstep of the brain cells that ... finger oct3 as the shepherd that escorts toxic MPP+ out of the astrocytes and into the space ... that the team used to block oct3 in mice would be toxic in people, and there is no drug available for ...

Researchers report 'moderately large' potential for red tide outbreak in Gulf of Maine region

... to indicate where and in what abundance the toxic cells might be expected in 2009. The ... the resulting growth and transport of the toxic cells using computer models. Working together ... the intensity and location of blooms of the toxic algae in the Gulf of Maine. With data from ...

Poison: It's what's for dinner

... for detoxification genes that let the rodents eat toxic creosote bushes that replaced juniper. "It ... bushes," she says. "The leaves are coated with a toxic resin that can comprise up to 24 percent of the ... diets, and how herbivores can feed on really toxic diets. If we can understand it, we may be able to ...

Desert woodrats switch one dietary poison for another

... detoxification genes that let the rodents eat the toxic creosote bushes that replaced junipers. "It ... Dearing says. "The leaves are coated with a toxic resin that can comprise up to 24 percent of the ... "we don't really know how herbivores can feed on toxic diets. If we can understand it, we may be able to ...

Singapore scientists synthesize gold to shed light on cells' inner workings

... use within the body because they do not contain toxic metals such as cadmium and lead. This ... in vivo. Our materials are smaller, less toxic and more biocompatible than the existing ... of the gold nanoclusters does not involve toxic chemicals or high temperatures. A single reaction ...

Desert woodrats switch one dietary poison for another

... detoxification genes that let the rodents eat the toxic creosote bushes that replaced junipers. "It ... Dearing says. "The leaves are coated with a toxic resin that can comprise up to 24 percent of the ... "we don't really know how herbivores can feed on toxic diets. If we can understand it, we may be able to ...

Poison: It's what's for dinner

... for detoxification genes that let the rodents eat toxic creosote bushes that replaced juniper. "It ... bushes," she says. "The leaves are coated with a toxic resin that can comprise up to 24 percent of the ... diets, and how herbivores can feed on really toxic diets. If we can understand it, we may be able to ...

Microscope reveals how bacteria 'breathe' toxic metals

... studying some common soil bacteria that "inhale" toxic metals and "exhale" them in a non-toxic form. The bacteria might one day be used to clean up toxic chemicals left over from nuclear weapons ... The danger at such waste sites is that the toxic metals are soluble, and so can leak into the ...

A sticky business -- how cancer cells become more 'gloopy' as they die

... to activate a drug that creates a short-lived toxic type of oxygen, called singlet oxygen, which ... this increasing 'gloopiness' is caused by the toxic oxygen molecules released into the cell. They ... as viscosity in the cancerous cell increases, the toxic oxygen molecule's mission to kill the cell is ...

Iron is involved in prion disease-associated neuronal demise

... the prion protein. Aggregates of PrP-scrapie are toxic to brain cells and cause a spongy-like appearance ... of end-stage disease. Since iron is highly toxic when mismanaged, this condition is likely to ... by Singh and colleagues, combined with gain of toxic function by the redox-active PrP-scrapie complex ...

Dust deposited in oceans may carry elements toxic to marine algae

... show that some sources of dust also carry toxic elements that can kill marine phytoplankton. Researchers discovered the toxic effects during a study of how phytoplankton ... in atmospheric aerosols that could also have toxic effects on marine phytoplankton. The modeling ...

Montana State team finds Yellowstone alga that detoxifies arsenic

... called Cyanidioschyzon -- thrives in extremely toxic conditions and chemically modifies arsenic that ... State University. Arsenic is the most common toxic substance in the environment, ranking first on ... live in areas of Yellowstone that are extremely toxic with respect to arsenic," McDermott said. "You ...

Rett Syndrome Research Trust advisor makes significant discovery

... suggest that MeCP2-deficient astrocytes secrete a toxic factor that impacts the entire neighborhood of ... growth; in ALS glia appear to release a toxic factor that kills motor neurons." Maniatis stated ... where halting the secretion of this potential toxic factor could restore health, in particular to the ...

Scientists discover 'hot spot' for toxic HABS off Washington coastline

... British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and ... concluded that under certain conditions, toxic algal cells from this offshore "initiation site" ... that initiate and sustain the growth of this toxic alga and determine why it produces a deadly ...

American Chemical Society's Weekly PressPac -- Jan. 28, 2009

... effect" can turn normal drug doses into toxic overdoses. Researchers have tried to remove FCs ... #4 FOR IMMEDIATE RELEASE Quantum dots may be toxic to cells, environment under certain conditions ... solar cells, and medical imaging devices may be toxic to cells under acidic or alkaline conditions. ...

'Hot spot' for toxic harmful algal blooms discovered off Washington coast

... British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and ... scientists found that under certain conditions, toxic algal cells from an offshore "initiation site" ... significant populations of the microscopic toxic alga, Pseudo-nitzschia. Over the course of ...

NYU scientists discover dangerous new method for bacterial toxin transfer

... discovered a new way for bacteria to transfer toxic genes to unrelated bacterial species, a finding ... aureus, a notorious bacterium that causes toxic shock syndrome and many other types of infections ... showed that Staph could transfer genes for deadly toxic shock to Listeria monocytogenes, which is already ...

American Chemical Society's Weekly PressPac -- Dec. 3, 2008

... decontamination of chemical warfare agents and toxic chemicals Industrial & Engineering Chemistry ... personal decontamination system for nearly any toxic or hazardous chemical, could help save the lives ... new fabric to absorb and adsorb sulfur mustard, a toxic liquid that causes skin blistering, and compared ...

Cleaning heavily polluted water at a fraction of the cost

... industries is heavily contaminated with toxic compounds. Stringent EU regulations apply to its ... bacteria and problems with the waste disposal of toxic sludge produced in the process, if it isn't ... to measure the system's efficiency in treating toxic compounds. It carried out full-scale tests on the ...

Toxic bile damages the liver

... is missing, the liver cells are exposed to the toxic components of the bile, resulting in cirrhosis of ... Defective transporter protein makes the bile toxic The Heidelberg University Hospital team, ... bile. Phosphatidylcholine protects the liver from toxic substances in the bile; a low concentration can ...

What causes cell defenses to crumble?

... cells. Even chemicals that are not regarded as toxic by conventional standards can enhance toxicity of ... that act as molecular 'pumps', preventing toxic compounds from accumulating in the cell. This defence mechanism against toxic chemicals is called multi-xenobiotic resistance ...

American Chemical Society's Weekly PressPac

... ARTICLE #3 FOR IMMEDIATE RELEASE Potentially toxic flame retardants highest in California households ... of California have blood levels of potentially toxic flame retardants called PBDEs at levels nearly ... use of chemical flame retardants, which are toxic or whose safety is uncharacterized," the article ...

How to build crops that can beat aluminum's toxic effects

... capable of thriving in environments laden with toxic aluminum, according to a report published online ... in a mutant root that can now thrive in an Al toxic environment," Larsen said. The critical factor, ... Rather than suffering from the metal's cumulative toxic effects as had been believed, it appears Al ...

UI researchers find potentially toxic substance present in Chicago air

... manufacture of paint pigments and a potentially toxic substance, present throughout the city. "To ... but there are very few published studies of its toxic properties," she said. To conduct the test, UI ... for human exposure to this potentially toxic compound, according to the study. "While ...

Advance offers revolution in food safety testing

... specific environmental conditions, and it's that toxic behavior that we need to detect, Trempy said. ... alive or dead, they can't directly assess their toxic potential and sometimes don't detect newly ... Siamese fighting fish, whose response to specific toxic chemicals have been studied in detail by Trempy's ...

'Buckyballs' have high potential to accumulate in living tissue

... the banned pesticide DDT. However, while DDT is toxic to wildlife, buckyballs currently have no documented toxic effects, Jafvert said. "This work points out ... taken up by fish and other organisms, possibly to toxic levels. This, however, indicates only the ...

Dartmouth workshop sets research agenda for environmental mercury

... into the fish we eat. Members of Dartmouth's toxic Metals Research Program convened the group of 43 ... For example, one unanswered question: does the toxic form of mercury produced and bioaccumulated in ... that link mercury in the atmosphere to the toxic form found in seafood." Many of the 43 ...

Greenland ice core reveals history of pollution in the Arctic

... The study, titled "Coal Burning Leaves toxic Heavy Metal Legacy in the Arctic," was conducted ... ice core showed pollutants from burning coal--the toxic heavy metals cadmium, thallium and lead--were ... expected peaks. "Conventional wisdom held that toxic heavy metals were higher in the 1960s and '70s, ...

NYU Langone Medical Center's tip sheet to the International Conference on Alzheimer's Disease 2008

... have found that the peptide not only plays a toxic role in the neurodegenerative disease but also is ... NYU researchers bolstered immunity against a toxic and infectious version of the prion protein, ... treats Alzheimer's disease by directly targeting toxic forms of the tau protein. Presentation # ...

UCLA researchers locate and image prostate cancer as it spreads to lymph nodes

... advance with a treatment component, activating a toxic agent in the genetic payload to kill the ... Now we will find out how effective this genetic toxic payload is in preventing further spread of the ... isn't working, the patient is exposed to a toxic therapy that isn't helping them. If Wu is ...

Can tomatoes carry the cure for Alzheimer's?

... by the accumulation of human beta-amyloid, a toxic insoluble fibrous protein in the brain, which ... Alzheimer's disease, since beta-amyloid is toxic to animal cells. Tomatoes are an attractive ... the immune responses to the tomato-derived toxic protein in a group of 15-month-old mice. They ...

American Chemical Society's Weekly PressPac -- June 25, 2008

... malondialdehyde and hydroperoxide, which are toxic to cells. The researchers say the stomach acts as ... barium and copper, which have also been linked to toxic effects. Researchers recently developed new ... heavy metals used and lowering their potentially toxic effects. Some of these fireworks are already ...

UNH researchers test sediment-scrubbing technology in NH river

... based on a natural form of phosphorus treats toxic heavy metals associated with industrial pollution ... filter," he says), which adhere to and treat toxic chemicals such as polychlorinated biphenyls ... of how to move and where to put all that toxic sediment. Sand caps have questionable long-term ...

Arsenic and new rice

... a protein in plants that could help to reduce the toxic content of crops grown in environments with high ... in and out of cells. Arsenic is acutely toxic and a highly potent carcinogen, but is widespread ... given the right conditions, can clear cells of toxic arsenite as well as accumulate it. This striking ...

Building on pyramids of trash

... if a plan to dispose of solid domestic and even toxic industrial waste by building solid monuments to ... and unsustainable" to simply bury solid toxic waste in lined deposits underground, which is ... additives to reduce the possibility of toxic materials leaching into the earth and ground ...