Sentences with phrase «human lead exposure»

Not exact matches

areas of higher sun exposure lead to humans having higher melonin levels as humans migrated following their food they moved into europe and asia where lower exposure to sun caused a lose in melonin content.

[T] he exposure of persistent human rights violations by the contras has led the Administration not to pressure contra leaders to enforce international codes of conduct,» the Americas Watch Report cited earlier states, «but to drown U.S. public opinion with praise for the «freedom fighters,» and to attempt to discredit all reports of their violations as inspired by communist or Sandinista propaganda.

Studies show that dioxins collect in the fatty tissues of animals and humans, and even low levels of exposure can lead to cancer, endometriosis, birth defects, and reproductive disorders.

Occupational exposure to human breast milk has not been shown to lead to transmission of HIV or HBV infection.

While tougher regulations have driven lead levels down globally since the 1990s, mercury levels in the North Pacific Ocean have increased 30 percent over the last 20 years, potentially putting humans at higher risk of exposure from seafood (See «Made in China: Our Toxic, Imported Air Pollution»).

«These chemicals are just about everywhere, from the blood in polar bears to eagles to humans on every continent,» said Joseph Allen, assistant professor of exposure assessment science at Harvard Chan School and the study's lead author.

«The lead levels in the mouse mothers were carefully designed to be within human population exposure levels.

Exposure to verbal and physical aggression between parents may hurt a child's ability to identify and control emotions, according to a longitudinal study led by NYU's Steinhardt School of Culture, Education, and Human Development.

However, numerous human studies showing a causal association between TCE exposure and an increased risk for kidney cancer have led NTP to reevaluate and reclassify TCE as known to be a human carcinogen.

«At least a dozen studies have shown the effects of phthalates on human reproduction,» says University of Rochester epidemiologist and biostatistician Shanna Swan, the lead author of a much - cited study that showed higher exposure to some phthalates in mothers correlates with reduced «anogenital distance» in newborn boys.

The U.S. Environmental Protection Agency (EPA) is planning to shut down a grant - making center that supports leading - edge research on human exposure to pollution and its effects.

«Of course, the long - term exposure to these levels of PCBs could lead to adverse effects to human health; however, a detailed toxicological study is needed in order to determine the effects.»

Because of the growing concerns about mercury exposure, Fernandez is leading a project at Wake Forest University in Winston - Salem, North Carolina, to study the metal's effects on human and environmental health in the Amazon.

«We have animal literature, which shows direct links between exposure and adverse health outcomes, the limited human studies, and the fact that 90 to 100 percent of the population has measurable levels of these compounds in their bodies,» said John Meeker, an assistant professor of environmental health sciences at the University of Michigan School of Public Health and a lead author.

Exposure in humans can lead to heart disease, stroke, lung cancer and other health problems.

We have known about this human and animal pathogen, TB, since ancient times, and it has always been considered something that is transmitted either through oral or aerosol exposure,» said lead study author Kathleen Alexander, DVM, PhD, professor, Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia.

«Inorganic arsenic is considered a first level carcinogen and its long - term exposure has negative effects on human health,» comments Dr Iva Hojsak of University Children's Hospital Zagreb, Croatia, lead author of the Committee report.

Deth reported last year, for example, that in human nerve cells thimerosal blocks a chemical reaction called methylation that is critical to gene activity and that is also disabled by exposure to lead.

«This finding leads to a larger question about how social exposure might shape gender - typical behavior in humans as well.»

This exposure to water, according to the theory, led to the development of human traits like walking upright.

They point out that poor semen quality «is the leading cause of unsuccessful attempts to achieve pregnancy and one of the most common medical problems among young men... it has been suggested as an important marker of male health, predicting both morbidity and mortality... it is sensitive to environmental exposures, including endocrine disrupting chemicals, heat and life - style factors, such as diet... Therefore, it can provide a sensitive marker of the impacts of modern environment on human health.»

The current study, and studies like it that use animal models, could contribute to determining human health risks and developing policies leading to a reduction in both exposure to THS and disease.

«If confirmed in humans, our study could greatly impact how people view exposure to environmental tobacco toxins,» said Manuela Martins - Green, a professor of cell biology and neuroscience at UC Riverside and the lead author of the study.

«Cadmium is a very important industrial metal, but exposure to it results in accumulation in the food chain, leading to toxicity in animals and humans,» says project leader Dr Christopher McDevitt, Senior Research Fellow and Deputy Director of the University's Research Centre for Infectious Diseases.

The interaction between the human host and microbes reflects a unique exposure that not only can lead directly to disease expression, but also can lead to changes in human host phenotype that is not directly pathogenic.

Trasande - led human health impact and cost estimates attributed to endocrine disrupting chemical exposure completely unfounded, researchers show

Three recent experimental studies focused on low consumption / exposure.949596 In one study, 29 smokers each consumed a single cigarette, immediately after which they had a significant decrease in blood vessel output power and significant increase in blood vessel ageing level and remaining blood volume 25 minutes later, as markers of atherosclerosis.94 In another study, human coronary artery endothelial cells were exposed to the smoke equivalent to one cigarette, which led to activation of oxidant stress sensing transcription factor NFR2 and up - regulation of cytochrome p450, considered to have a role in the development of heart disease.95 These effects were not seen when heart cells were exposed to the vapour from one e - cigarette.95 A study exposed adult mice to low intensity tobacco smoke (two cigarettes) for one to two months and found adverse histopathological effects on brain cells.96

Prolonged exposure to silica dust can pose severe health risks to both animals and humans causing irritation and in some cases, permanent damage of the mucous membranes of the lungs and upper respiratory tract as well as leading to silicosis and lung cancer.

Exposure to common food additive carrageenan leads to reduced sulfatase activity and increase in sulfated glycosaminoglycans in human epithelial cells Check out this book: Excitotoxins: The Taste That Kills

We know that the lemony aura of limonene is more than just a scent, as it can be found in our blood after exposure.8 Furthermore, several anticancer cellular pathways appear to be affected by the terpene limonene, leading some to suggest it has anticancer, or chemopreventative, benefits.9 While feeding it to rats in studies has revealed some efficacy against breast tumors, 10 we have a ways to go before we can make such bold claims in humans.

Exposure to low levels of Bisphenol A during foetal development has also been shown to lead to a variety of reproductive problems in humans, including a lowered sperm count and infertile sperm.

Research into the fertility of sheep exposed to endocrine disruptors in the environment by Dr. Michelle Bellingham of the University of Glasgow found that abnormalities that could result in low sperm counts were found in the testes of 42 % of the animals, which led her to suggest that the rise in the use of in - vitro fertilization in humans, particularly as a result of low sperm counts, is due to exposure to these chemicals in the environment.

Conversely, the person who grows up to engage in the forms of violence that endanger others suffered from the alienation, marginalization and exposure to violence and indoctrination that led them to believe their rights to their beliefs are superior to those of others, to see others as less than human, and to see the lives of others as not worthy of value, to not trust others, the rule of law, institutions or governments, which leads to the use of violence as legitimate to advance their means.

Loose teeth are usually pulled, cracks and holes will be evaluated for caries / cavities like in humans and root exposure may lead to tooth extraction or other prophylactic treatment to preserve the tooth.

The rabies vaccine is important because this increasing threat can lead to human exposure if not controlled.

Radical changes in ecology can lead to unexpected viral proliferation and infection via a number of routes — greater human exposure, changes in wildlife populations, changes in environmental factors that encourage viral proliferation.

It will reduce exposure to the many toxins in plastic that pose a risk to human health, such as bisphenol A, styrene, lead, and phthalates, and you will have less plastic waste to send to landfill or recycling.

Potential impacts of climate change on the transmission of Lyme disease include: 1) changes in the geographic distribution of the disease due to the increase in favorable habitat for ticks to survive off their hosts; 85 2) a lengthened transmission season due to earlier onset of higher temperatures in the spring and later onset of cold and frost; 3) higher tick densities leading to greater risk in areas where the disease is currently observed, due to milder winters and potentially larger rodent host populations; and 4) changes in human behaviors, including increased time outdoors, which may increase the risk of exposure to infected ticks.

Vegetarians with a desire to reduce their exposure to neurotoxic substances (eg, PLOP, MMHg, and lead) should be aware of farming practices that introduce these pollutants into the human diet.

Their green - above - all approach makes lots of sense for children's furniture, from both a planetary and human health perspective: youngsters spend tons of time in their cribs, on a changing table, and surrounded by stuff in their nurseries; exposure to VOCs and other harmful pollutants that are off - gassing from their surroundings can lead to both short and long - term health problems, especially if they're living with poor indoor air quality during their busiest developmental years.

Alternatively, employers may react inappropriately to suspicious absences, which could lead to exposures to liability, such as in cases where the absence is related to illness and the employee alleges that the employer's reaction is in violation of the Human Rights Code.

An employer's failure to have an EPL policy in place can lead to exposure to a variety of applications from employees, including damages for discrimination and other violation of the Human Rights Code.

The shift from living in jungle huts to cities has dramatically changed human exposure to certain microbes, which could have implications for healthy immune function, according to a study led by researchers from NYU Langone Medical Center and published online February 12 in Science Advances.