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Portal latinoamericano de toxicología


Alert by the growing threat of abrupt and irreversible climate changes


Climate tipping points — too risky to bet against. The growing threat of abrupt and irreversible climate changes must compel political and economic action on emissions. Timothy M. Lenton, Johan Rockström, Owen Gaffney, Stefan Rahmstorf, Katherine Richardson, Will Steffen & Hans Joachim Schellnhuber. nature.com. November 27, 2019. Politicians, economists and even some natural scientists have […]

Mercury trade in Indonesia, a business intertwined with the lucrative and illegal production of gold


The hidden cost of gold: Birth defects and brain damage. By Richard C. Paddock. nytimes.com. November 09, 2019. Thousands of children with crippling birth defects. Half a million people poisoned. A toxic chemical found in the food supply. Accusations of a government cover-up and police officers on the take. La balsa en el Museo del […]

E-cigarettes are not safe


E-cigarettes: Smoking Cessation Aid or Dangerous Addiction? By Anna Sayburn. medscape.com. September 10, 2019. Recent reports of a death in the US linked to vaping, and of almost 200 cases of lung disease, have caused alarm about the widespread use of e-cigarettes. Cigarrillo electrónico en uso (elmundo.es) Director of the US Centers for Disease Control […]

Association between exposure to air pollution and emphysema


Air pollution can accelerate lung disease as much as a pack a day of cigarettes. sciencedaily.com. August 13, 2019. Summary: Air pollution — especially ozone air pollution which is increasing with climate change — accelerates the progression of emphysema of the lung, according to a new study. Pulmones (SerTox) Air pollution — especially ozone air […]

A global review of shark and ray entanglement in anthropogenic marine debris, study


Hundreds of sharks and rays tangled in plastic. eurekalert.org. July 04, 2019. Hundreds of sharks and rays have become tangled in plastic waste in the world’s oceans, new research shows. University of Exeter scientists scoured existing published studies and Twitter for shark and ray entanglements, and found reports of more than 1,000 entangled individuals. And […]

Chemical residue evidence from the first millennium BCE in the Pamirs & the origins of cannabis use


Origins of cannabis smoking. Evidence from ancient burials at high elevations. sciencedaily.com. June 12, 2019. Summary: A chemical residue study of incense burners from ancient burials at high elevations in western China has revealed psychoactive cannabinoids. The finding provides some of the earliest evidence for the use of cannabis for its psychoactive compounds. Cannabis, tan […]

Impact of high volume energy drink consumption on electrocardiographic and blood pressure parameters


Energy drinks may increase risk of heart function abnormalities and blood pressure changes. sciencedaily.com. May 29, 2019.Summary: Three to four hours after drinking 32 ounces of energy drinks, the heart’s electrical activity was abnormal compared to drinking a placebo drink. Two different commercially available energy drinks produced the same results, suggesting that energy drinks as […]

Canadian neuroscientists offer insights into the long-term effects of adolescent cannabis use


Growing up high: Neurobiological consequences of adolescent cannabis use. eurekalert.org. May 25, 2019. Canadian neuroscientists offer insights into the long-term effects of adolescent cannabis use. About one in five Canadian adolescents uses cannabis (19% of Canadians aged 15-19), and its recent legalization across the country warrants investigation into the consequence of this use on the […]

Significant plastic accumulation on the Cocos (Keeling) Islands, Australia, study


Australian islands home to 414 million pieces of plastic pollution. sciencedaily.com. May 16, 2019. Summary: A survey of plastic pollution on Australia’s Cocos (Keeling) Islands has revealed the territory’s beaches are littered with an estimated 414 million pieces of plastic debris. The study estimated beaches on the Indian Ocean islands are littered with 238 tons […]

Increases in suicide attempts by Self-poisoning in the US among youth and young adults from 2000 to


Suicide attempts by self-poisoning have more than doubled in teens, young adults. sciencedaily.com. May 2, 2019. Summary: A new study found rates of suicide attempts by self-poisoning among adolescents have more than doubled in the last decade in the United States, and more than tripled for girls and young women.A new study from Nationwide Children’s […]

Arsenic level of 17 ppb like in Peñafiel brand is a clear violation of the US bottled water standard


Arsenic in Some Bottled Water Brands at Unsafe Levels, Consumer Reports Says. By Ryan Felton*. consumerreports.org. April 18, 2019. Keurig Dr Pepper suspends production of its Peñafiel brand, as CR urges a full recall and tougher federal standards. What you need to know. Natural foods grocery chain Whole Foods introduced its new brand of bottled […]

Enzyme MHETase decoded: A long-term solution to the plastic waste problem?


‘Molecular scissors’ for plastic waste. Enzyme MHETase decoded. eurekalert.org. April 12, 2019. Plastics are excellent materials: extremely versatile and almost eternally durable. But this is also exactly the problem, because after only about 100 years of producing plastics, plastic particles are now found everywhere – in groundwater, in the oceans, in the air, and in […]

Long-term fate of Agent Orange and dioxin TCDD contaminated soils and sediments in Vietnam hotspots


Toxic byproducts of Agent Orange continue to pollute Vietnam environment, study says. eurekalert.org. February 27, 2019. During the Vietnam War, United States aircraft sprayed more than 20 million gallons of herbicides, including dioxin-contaminated Agent Orange, on the country’s rain forests, wetlands, and croplands. Agent Orange defoliated the thick jungle vegetation concealing Viet Cong fighters and destroyed […]

Cannabis use in adolescence linked to risk of depression, anxiety and suicidality in young adulthood


Cannabis use in teens raises risk of depression in young adults. eurekalert.org. February 13, 2019. Cannabis use among adolescents is found to be associated with increased risk of depression and anxiety in adulthood.  While there has been a lot of focus on the role of cannabis use in psychosis, there has been less attention on […]

Open-source discovery of chemical leads for next-generation chemoprotective antimalarials, study


Half a million tests and many mosquitoes later, new buzz about a malaria prevention drug. eurekalert.org. December 06, 2018. Researchers tested chemical compounds for their ability to inhibit the malaria parasite at an earlier lifecycle stage than most current drugs, revealing chemical starting points for new malaria preventatives.  Plasmodium falciparum en la sangre (WP) Extracting […]

Prospective biomonitor and sentinel bivalve species in mangrove-lined Nicaraguan coasts


Clams and cockles, sentinels of the environmental status of Nicaraguan coasts. eurekalert.org. Novemver 15, 2018. Researchers from the UPV/EHU-University of the Basque Country are seeking the best bivalves in the Nicaraguan mangroves for the purpose of monitoring pollution.  Manglares en Galápagos (SerTox) Collecting samples of bivalves in the Nicaraguan mangroves.CREDITIonan Marigómez / UPV/EHUThe Cell Biology […]

Recommendations for essential policy reforms about organophosphate exposures during pregnancy


Leading researchers call for a ban on widely used insecticides. eurekalert.org. November 09, 2018. Use of organophosphates has lessened, but risks to early brain development still too high.Public health experts have found there is sufficient evidence that prenatal exposure to widely used insecticides known as organophosphates puts children at risk for neurodevelopmental disorders. Exposición prenatal […]

Biomolecular archaeology reveals ancient origins of indigenous tobacco smoking in North American


Interior northwest Nez Perce used tobacco long before European contact. sciencedaily.com. October 29, 2018. Molecular analysis of pipes uncovers longest record of use. Summary: Researchers have determined that the Nez Perce grew and smoked tobacco at least 1,200 years ago, long before the arrival of traders and settlers from the eastern United States. Their finding […]

Estimates of pollutants on asthma incidence and emergency room visits, study


Air pollution leads to millions of ER visits for asthma attacks worldwide. eurekalert.org. Octuber 24, 2018. First study to quantify global burden of asthma linked to dirty air. Nine to 33 million visits to the emergency room (ER) for asthma worldwide may be triggered by breathing in air polluted by ozone or fine particulate matter–pollutants […]

Hierarchical spidroin micellar nanoparticles as the fundamental precursors of spider silks


Mystery of how black widow spiders create steel-strength silk webs further unravelled. sciencedaily.com. October 22, 2018. ‘Modified micelle theory’ may allow scientists to create equally strong synthetic materials. Summary: Researchers have better unraveled the complex process of how black widow spiders transform proteins into steel-strength fibers. This knowledge promises to aid scientists in creating equally […]


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