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Substance in Biological News

Society for Prevention Research Meeting in Washington, D.C., May 27-29, 2009

... with adolescent and young adult onset of substance use and disorders, but little is known about why ... number of African-American adults develop substance abuse problems and start heroin after age 32. Can this be prevented? Does unemployment affect substance abuse later in life? The European Drinking ...

American Chemical Society's Weekly PressPac -- May 13, 2009

... more sensitive tests for detecting melamine, the substance that killed at least 6 children and sickened ... analytical techniques that identify a substance based on its chemical fingerprint when exposed to ... found that these methods accurately detected the substance at levels as low as 1 ppm, meeting the new FDA ...

Case Western Reserve University engineers hit pay dirt with clay mixture

... A watery, mud-like substance has hit pay dirt for Case Western Reserve ... making cheese. This milk protein is the same substance farmers once used to produce durable white milk ... But milk is not the only bio-based substance the group has used. He has also experimented with ...

Study suggests salt might be 'nature's antidepressant'

... they normally enjoy, like drinking a sugary substance or pressing a bar that stimulates a pleasant ... the idea that salt is a natural mood-elevating substance could help explain why we're so tempted to ... finding evidence that it's an abused, addictive substance -- almost like a drug. One sign of addiction ...

Life Sciences Discovery Fund awards health research program grants

... improving the delivery of mental health and substance abuse services in rural communities, and ... populations to improve mental health and substance abuse services. We are proud to award the LSDF ... Program of Excellence in Rural Mental Health and substance Abuse Program focus: To improve the delivery ...

New and revised limits ensure safety in the workplace

... health (MAK Values), and the concentration of a substance in the body that a human being can be exposed to ... also include the so-called Biological substance Reference Values (Biologische ... but they define the "background exposure" of a substance in the body as measurable in the blood, for ...

Cognitive, genetic clues identified in imaging study of alcohol addiction

... effective; many either mimic the addictive substance to help people get through withdrawal periods or block the substance to prevent its effects. For stimulants, such as ... alcoholics in abstinence and 10 had no history of substance abuse. Another five were included in the ...

In the laboratory, green tea proves a powerful medicine against severe sepsis

... a late mediator of sepsis called HMGB1, a substance expressed in the late stages of lethal sepsis. ... In the latest study, Dr. Wangs group gave a substance in green tea called EGCG to mice in the throes of ... percent in those who didnt receive the green tea substance to 82 percent in those who did. Clinically, even ...

Scientists find predisposition to bronchiolitis in some babies

... had lower levels of interferon-gamma and substance P in their airway secretions. Gamma interferon is an important substance made in the body which is used to fight viral infections. The role of substance P is less understood but is thought to be ...

Sweet smell

... odious? Is there something in the chemistry of a substance that can serve to predict how we will perceive ... a link, and knowing the molecular structure of a substance can help predict whether we will find its smell ... in chemical and physical properties from one substance to another. From this, the researchers found they ...

Good earth: Brown chemists show origin of soil-scented geosmin

... off taste in some drinking water. That is why the substance is of interest to water purification experts and ... vintners, who want to keep the benign but pungent substance out of their wine. Until recently, scientists ... of geosmin. By understanding precisely how the substance is synthesized, Jiang said, these experts may ...

Restoring a natural root signal helps to fight a major corn pest

... of maize plants resulted in the release of the naturally active substance (E)-beta-caryophyllene from their roots. The substance attracts nematodes that attack and kill larvae of the Western corn ...

Lice can be nice to us

... asthma, diabetes or multiple sclerosis. Or the body can mistake a harmless substance as a threat causing an allergic response. The authors say some ... kind of immuno-suppressive effect, possibly directly by secreting some substance into the mice from its saliva, or indirectly by transmitting bacteria or ...

Fluorescent cancer cells to guide brain surgeons

... of the blood protein albumin. The researchers attached a fluorescent substance (5-aminofluorescein) to albumin, which is distributed throughout the body ... and eventually accumulates in the brain tumor. Laser light causes the substance to glow and makes the fine extensions of the tumor visible. "Other ...

Common fragrance ingredients in shampoos and conditioners are frequent causes of eczema

... Sweden has some form of contact allergy. Nickel is by far the most common substance that causes eczema, but the thesis shows that oxidized linalool occupies ... allergy, but we know that the risk increases as the exposure to t! he substance increases", says Johanna Brred Christensson. Linalool is a fragrance ...

Landscape-scale treatment promising for slowing beetle spread

... be kept in check with aerial application of flakes containing a natural substance used in herbal teas that the insects release to avoid overcrowding host ... and Idaho, and showed how applications of laminated flakes containing a substance called verbenone resulted in a three-fold reduction in insect attack ...

Natural brain substance blocks weight gain in mice, UT Southwestern researchers discover

... to normal mice given leptin. The researchers also administered a substance that activates only OX2R to separate out orexin's possible double action. The mice given this substance showed the same beneficial response to high-fat diets and leptin, ...

American Chemical Society's Weekly PressPac -- Jan. 7, 2009

... that this endogenous SA came from the diet, since SA is a natural substance found in fruits and vegetables. Now the group reports on studies of changes in SA levels in volunteers who took benzoic acid, a substance also found naturally in fruits and vegetables that the body could ...

Biomedical researchers create artificial human bone marrow in a test tube

... system defects and a continuous supply of blood for transfusions. The substance grows on a 3-D scaffold that mimics the tissues supporting bone marrow in ... flu virus. This is believed to be a first. To determine whether the substance behaves like real bone marrow, the scientists implanted it in mice with ...

New evidence that people make aspirin's active principle -- salicylic acid

... that this endogenous SA came from the diet, since SA is a natural substance found in fruits and vegetables. Now the group reports on studies of changes in SA levels in volunteers who took benzoic acid, a substance also found naturally in fruits and vegetables that the body could ...

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

... From Chemical Abstracts Service (CAS) CAS Registers 40 Millionth substance On November 21, On November 21, CAS Registry Number 1073662-18-6 was ... REGISTRY , the world's most authoritative collection of disclosed chemical substance information, now includes 40 million organic and inorganic substances . ...

Superglue from the sea

... Scientists already knew sandcastle worm glue contained proteins and a substance named dopa, which also is present in glue mussels used to glom onto rocks ... glue," Stewart says. When the polymers are mixed, they form an unusual substance known as a "coacervate," which condenses out of the polymer solution and ...

UNC, Yale partner to study effects of cocaine use on mother-infant relationships

... cues. "Understanding, for example, how genes and experiences such as substance use come together to influence how a mother responds to her baby's cry or ... are struggling to care for their children under the burden of their own substance use," Mayes said. All studies will also focus on the role of the ...

A card-swipe for medical tests

... GMR's capability to detect a single particle of a biological substance "is just over the horizon," which could be used to test blood or other ... to test which size of addresses could be "read" most accurately. A substance named biotin or vitamin B-7 was bound chemically to the gold spots on the ...

American Chemical Society's Weekly PressPac -- Sept. 10, 2008

... Chemists are reporting development of what they term the most powerful substance ever discovered for eliminating cocaine from the body, an advance that ... of the drug in the blood is a key to fighting overdose in humans. The substance also prevented convulsions and death when injected into mice that were ...

New method identifies meth hot spots

... officials to more effectively allocate funds and other resources for substance abuse treatment and prevention to areas of the state that need them most. ... part of the state. When a meth-related spill, leak or other hazardous substance release was reported, it was 8.3 times more likely to be in Umatilla ...

American Chemical Society's Weekly PressPac -- July 16, 2008

... Streptomyces coelicolor, a common soil bacterium. They found that that the substance is formed in an assembly line process directed by two recently discovered ... could lead to new ways to prevent the formation of the odor-causing substance and may lead to consumer products with improved taste and smells, the ...

Argyrin: Natural substance raises hope for new cancer therapies

... in Hanover have now discovered a chemical mechanism with which a natural substance - argyrin - destroys tumours. Today, the researchers publish their ... significantly lower risk of suffering from intestinal cancer. "I needed a substance that would prevent the breakdown of the protein that I was investigating ...

Research measures movement of nanomaterials in simple model food chain

... significant amount of bioaccumulation (the increase in concentration of a substance in an organism over time) and biomagnification (the progressive buildup of a substance in a predator organism after ingesting contaminated prey). In their ...

Nitrates in vegetables protect against gastric ulcers

... acid gastric juice, and are then converted into the biologically active substance nitric oxide. This results in our developing high levels of nitric oxide ... acid gastric juice, and are then converted into the biologically active substance nitric oxide. This results in our developing high levels of nitric oxide ...

Study shows mercury levels from products decreasing, though still at dangerous levels

... study, published in Journal of Industrial Ecology, uses a method called substance flow analysis to develop improved estimates of the environmental releases ... lead author of the study and an environmental scientist with the EPA. substance flow analysis can be used to estimate the mercury releases to air, land ...

A step forward in virology

... virus itself also car-ries this official waste tag on its surface. The substance accumulates on the shell of vaccinia viruses, Jason Mercer explained. The ... is the trigger for the formation of the evagination. Using a messenger substance to knock on the door, the virus triggers a signaling chain reaction inside ...

Weird water: Discovery challenges long-held beliefs about water's special properties

... pairs of particles start to repel each other. Like water, their simulated substance expanded when cooled and became more slippery when pressurized. That ... of temperatures. They also simulated dissolving oily polymers into their substance and, again, found water-like behavior. In particular, the polymers swelled ...

New research to decode the genetic secrets of prolific potato pest

... attack. The worm invades the roots of the potato plant and injects a substance causing the plant to create a unique cell from which it feeds via a ... more fully through this research. We have no idea what this injected substance is or how it manages to persuade the plant to create the feeding cell. In ...

NARSAD presents 2007 prizes for outstanding achievement in neuroscience and psychiatric research

... of the neurobiology of emotions, including pain, anxiety, depression and substance abuse. Early on, she and her colleagues provided the first physiological ... of the neurobiology of emotions including pain, anxiety, depression and substance abuse. Through her own work and her efforts with colleagues, including her ...

Amber specimen captures ancient chemical battle

... to defend themselves. This beetle was able to exude a sticky chemical substance that was irritating to potential predators, and caused them to go away or ... and control the direction of the defense; in other words, produce the substance only on its left rear side if that was where the attack was coming from. ...

Experimental treatment halts hypoxic-ischemic brain injury in newborns

... brain damage triggered by the lack of oxygen and blood supply. The experimental pre-clinical treatment involved putting a naturally occurring substance called plasminogen activator inhibitor-1 (PAI-1) into the brains of newborn rats, said Chia-Yi Kuan, M.D. PhD, senior investigator on the study and a ...

Organic food not nutritionally better than conventionally-produced food

... scheme from which the foodstuffs were derived, the cultivar of crop or breed of livestock analysed, the nutrient or other nutritionally relevant substance assessed, the laboratory analytical methods used, and the methods used for statistical analysis. 55 of the identified papers were of satisfactory ...

UCLA researchers discover new molecular pathway for targeting cancer, disease

... in cancer development, noted the importance of the UCLA study and its significance for the next stages of research finding a pharmaceutical drug or substance molecule to act as an agonist, which would stimulate LXR activity to inhibit aberrant Hh signaling. "The hedgehog Hh signaling pathway is an ...

Medical use for waste television screens

... incinerated or buried in landfill sites. Researchers have now found a way of recovering PVA from television screens and transforming it into a substance suitable for use in tissue scaffolds which help parts of the body regenerate. It can also be used in pills and dressings that are designed to deliver ...
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