Tag: "exposure" at biology news

Time running out for South Asian vultures, ecologists warn

...shed in the Journal of Applied Ecology, shows that exposure of vulture populations to a surprisingly small proportion of livestock carcasses contaminated with the drug - less than 1% - is sufficient to cause the rapid declines in vulture populations observed in India, Pakistan and Nepal over the past ten year...

Offspring at risk from maternal occupational exposure to solvents

...niversity of Toronto (U of T) have linked maternal exposure to organic solvents in the workplace with poorer p...ng operations, and medical laboratories. "Reducing exposure to organic solvents during pregnancy is warranted until a more refined risk assessment is possible,"...

A treatment, not a cure: Calcium silicate neutralizes an acidic stream

...cid precipitation, into the atmosphere. Persistent exposure to these pollutants, which return to Earth in rain, snow, sleet, hail and fog, can compromise the health of aquatic ecosystems. In a recent Restoration Ecology paper, Institute of Ecosystem Studies President and Director Dr. Gene E. Likens, with col...

Researchers find chemosignal that encourages women's sexual desire

...ed a 17 percent increase in sexual fantasies after exposure for the period. Women in the control group with partners who were exposed to a neutral substance reported an insignificant decrease in sexual desire, while women without partners in the control group experienced a 28 percent decrease in fantasies....

Toward a better understanding of taste and smell impairments

...ton, PhD, will evaluate the impact of occupational exposure to various inhaled substances on nasal chemosensor...d alleviating the effects of occupational chemical exposure on sensory function related to taste and smell. Related studies will track chemosensory performance ...

New risks for bladder cancer identified by MIT team

...okers. Although second-hand smoke is one source of exposure for non-smokers, the researchers say that it is very important to identify the other sources of exposure for nonsmokers. "Identifying the non-smoking related sources of these [carcinogens] should beco...

Environmental exposures before and after birth can harm children's lungs

.... "This study indicates that the combination of exposure to combustion by-products in the womb and to secon...ignificantly more respiratory problems than either exposure on its own," added Dr. Frederica Perera, the study's Principal Investigator and Director of the Cent...

Faces age due to fat loss, skin changes - not gravity

...e surprise of many people, the loss of fat and sun exposure play a bigger role than gravity in aging the face, according to a study presented today at the American Society of Plastic Surgeons (ASPS) Plastic Surgery 2004 conference in Philadelphia. "People make assumptions about how the face ages because when...

Experimental drug prevents vaginal simian HIV transmission in monkeys Science study says

...onkeys with an experimental drug 15 minutes before exposure to the immunodeficiency virus SHIV and report that the drug protected the animals from infection. SHIV provides a monkey model for HIV; it contains the inner parts of the simian immunodeficiency virus (SIV) and the outer parts of HIV. This study is ...

Using fruitflies to examine alcohol tolerance

...ective effects of alcohol that occur with repeated exposure to the drug. A study in the October issue of Alc...c tolerance' is produced by repeated or continuous exposure to alcohol over longer periods of time." "Theories about the root causes of alcoholism often invoke ...

Normal cells in tumors may aid cancer growth

...al cells isn't yet known, but it might result from exposure to carcinogens, Eng says. It's also too soon to say how genetic damage to stromal cells might influence tumor growth. However, stromal cells can produce growth factors and other substances that can influence the behavior of cancer cells. The l...

Study confirms link between head and neck cancer and common Asian nut

...t effect indicates factors that may have different exposure levels in different birth cohorts and require prolonged time to manifest their effects on the body. Period effects, on the other hand, usually reflect factors that affect all age groups equally at a given period of time, such as introduction of new ...

Excess dietary fat accelerates breast cancer by altering the activity of a group of genes

...e particularly important, given people's continual exposure through dietary habits. Among them, dietary fats are the main element involved in breast cancer. Fats do not cause cancer, however some of them, such as animal fats or certain vegetable fats, accelerate the clinical development of the disease, while ...

ASPB opposes proposed ban of GMOs in Humboldt county ballot measure M

...akes, rivers and streams, cut down dramatically on exposure to harsh chemical pesticides by farm workers and millions of Americans. Genetically engineered plants that more effectively resist pests have also led to improved crop yields. Furthermore, there are instances in which genetic engineeri...

Passage of GMO ban in San Luis Obispo would encourage use of harsh pesticides

...kes, rivers and streams, cuts down dramatically on exposure to harsh chemical pesticides by farm workers and millions of Americans. Genetically engineered plants that more effectively resist pests have also led to improved crop yields. Measure Q encourages the current widespread use of toxic chemical pesticid...

New method studies living bacterial cells

...s of elements in individual cells before and after exposure to the heavy metal. The results indicated that X-ray fluorescence analysis had distinguished living bacterial cells from dead cells for the first time. The analysis also showed that a bone-like mineral deposit had formed around the surface of the adh...

Early life stress harms mental function and immune system in later years

...re tested as adults several weeks after fluoxetine exposure was stopped. Further embargoed details on this research may be obtained from Jessica Lawrence-Hurt, AAAS Office of Public Programs, 202-326-7088, scipak@aaas.org . In another report, Martha Farah, PhD, and her colleagues a...

Pesticides may promote Parkinson's disease and exercise may offer protection

...r. They have shown for the first time that chronic exposure to the "organic" pesticide rotenone can cause Park...pport our previous findings that chronic pesticide exposure may be capable of causing parkinsonian pathology in humans." The results also support epidemiologica...

New center to map DNA of key lab mice

...we can determine which diseases develop because of exposure to factors in the environment." Almost all human g... humans. Almost 200 human diseases are affected by exposure to environmental substances. For most diseases, more than one gene is involved and researchers must ...

Passage of Marin County GMO ban would encourage widespread use of harsh pesticides

...re that will subject county residents to increased exposure from chemical pesticides. Measure B's exemption fr...kes, rivers and streams, cuts down dramatically on exposure to harsh chemical pesticides by farm workers and millions of Americans. Genetically engineered plant...

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(Date:10/30/2014)... Bacteria in the gastrointestinal tract fulfill many vital ... same bacteria can induce strong inflammatory responses by ... and enter the bloodstream. , Although acute inflammation ... chronic or systemic inflammation is linked to numerous ... involvement of inflammatory processes in the development of ...
(Date:10/30/2014)... 30 October 2014 Biological membranes are mainly composed ... adsorption of solution ions onto lipid membranes helps ... new study provides a quantitative description of the ... Joanna Kotyńska and Zbigniew Figaszewski from the University ... study describing these findings, just published in ...
(Date:10/29/2014)... and gas production are well over recommended levels in ... journal Environmental Health . High levels of benzene, ... the first to be based on community sampling by ... used to supplement official air-quality monitoring programs. , Unconventional ... readily flow to the surface. This is because they ...
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