Welcome

Website counter
website hit counter
website hit counters

Tuesday, July 13, 2010

Fwd: [MedicalConspiracies] Weed killer kills human cells. Study intensifies debate over 'inert' ingredients.



---------- Forwarded message ----------
From: Grannie <granniefox@gmail.com>
Date: Tue, Jul 13, 2010 at 12:47 PM
Subject: [MedicalConspiracies] Weed killer kills human cells. Study intensifies debate over 'inert' ingredients.
To:


Sun Jul 11, 2010 10:49 pm (PDT)



Weed killer kills human cells. Study intensifies debate over 'inert' ingredients.
http://www.environmentalhealthnews.org/ehs/news/roundup-weed-killer-is-toxic-to-human-cells.-study-intensifies-debate-over-inert-ingredients

Used in yards, farms and parks throughout the world, Roundup has long been a top-selling weed killer. But now researchers have found that one of Roundup’s inert ingredients can kill human cells, particularly embryonic, placental and umbilical cord cells. The new findings intensify a debate about so-called “inerts†â€" the solvents, preservatives, surfactants and other substances that manufacturers add to pesticides. Nearly 4,000 inert ingredients are approved for use by the U.S. Environmental Protection Agency.

By Crystal Gammon
Environmental Health News

June 22, 2009

Used in yards, farms and parks throughout the world, Roundup has long been a top-selling weed killer. But now researchers have found that one of Roundup’s inert ingredients can kill human cells, particularly embryonic, placental and umbilical cord cells.

The new findings intensify a debate about so-called “inerts†â€" the solvents, preservatives, surfactants and other substances that manufacturers add to pesticides. Nearly 4,000 inert ingredients are approved for use by the U.S. Environmental Protection Agency.

Glyphosate, Roundup’s active ingredient, is the most widely used herbicide in the United States. About 100 million pounds are applied to U.S. farms and lawns every year, according to the EPA.

Until now, most health studies have focused on the safety of glyphosate, rather than the mixture of ingredients found in Roundup. But in the new study, scientists found that Roundup’s inert ingredients amplified the toxic effect on human cellsâ€"even at concentrations much more diluted than those used on farms and lawns.

One specific inert ingredient, polyethoxylated tallowamine, or POEA, was more deadly to human embryonic, placental and umbilical cord cells than the herbicide itself â€" a finding the researchers call “astonishing.â€

“This clearly confirms that the [inert ingredients] in Roundup formulations are not inert,†wrote the study authors from France’s University of Caen. “Moreover, the proprietary mixtures available on the market could cause cell damage and even death [at the] residual levels†found on Roundup-treated crops, such as soybeans, alfalfa and corn, or lawns and gardens.

The research team suspects that Roundup might cause pregnancy problems by interfering with hormone production, possibly leading to abnormal fetal development, low birth weights or miscarriages.

Monsanto, Roundup’s manufacturer, contends that the methods used in the study don’t reflect realistic conditions and that their product, which has been sold since the 1970s, is safe when used as directed. Hundreds of studies over the past 35 years have addressed the safety of glyphosate.

“Roundup has one of the most extensive human health safety and environmental data packages of any pesticide that's out there,†said Monsanto spokesman John Combest. “It's used in public parks, it's used to protect schools. There's been a great deal of study on Roundup, and we're very proud of its performance.â€

The EPA considers glyphosate to have low toxicity when used at the recommended doses.

“Risk estimates for glyphosate were well below the level of concern,†said EPA spokesman Dale Kemery. The EPA classifies glyphosate as a Group E chemical, which means there is strong evidence that it does not cause cancer in humans.

In addition, the EPA and the U.S. Department of Agriculture both recognize POEA as an inert ingredient. Derived from animal fat, POEA is allowed in products certified organic by the USDA. The EPA has concluded that it is not dangerous to public health or the environment.

The French team, led by Gilles-Eric Seralini, a University of Caen molecular biologist, said its results highlight the need for health agencies to reconsider the safety of Roundup.

“The authorizations for using these Roundup herbicides must now clearly be revised since their toxic effects depend on, and are multiplied by, other compounds used in the mixtures,†Seralini’s team wrote.

Controversy about the safety of the weed killer recently erupted in Argentina, one of the world’s largest exporters of soy.

Last month, an environmental group petitioned Argentina’s Supreme Court, seeking a temporary ban on glyphosate use after an Argentine scientist and local activists reported a high incidence of birth defects and cancers in people living near crop-spraying areas. Scientists there also linked genetic malformations in amphibians to glysophate. In addition, last year in Sweden, a scientific team found that exposure is a risk factor for people developing non-Hodgkin lymphoma.

Inert ingredients are often less scrutinized than active pest-killing ingredients. Since specific herbicide formulations are protected as trade secrets, manufacturers aren’t required to publicly disclose them. Although Monsanto is the largest manufacturer of glyphosate-based herbicides, several other manufacturers sell similar herbicides with different inert ingredients.

The term “inert ingredient†is often misleading, according to Caroline Cox, research director of the Center for Environmental Health, an Oakland-based environmental organization. Federal law classifies all pesticide ingredients that don’t harm pests as “inert,†she said. Inert compounds, therefore, aren’t necessarily biologically or toxicologically harmless â€" they simply don’t kill insects or weeds.

Kemery said the EPA takes into account the inert ingredients and how the product is used, whenever a pesticide is approved for use. The aim, he said, is to ensure that “if the product is used according to labeled directions, both people’s health and the environment will not be harmed.†One label requirement for Roundup is that it should not be used in or near freshwater to protect amphibians and other wildlife.

But some inert ingredients have been found to potentially affect human health. Many amplify the effects of active ingredients by helping them penetrate clothing, protective equipment and cell membranes, or by increasing their toxicity. For example, a Croatian team recently found that an herbicide formulation containing atrazine caused DNA damage, which can lead to cancer, while atrazine alone did not.

POEA was recognized as a common inert ingredient in herbicides in the 1980s, when researchers linked it to a group of poisonings in Japan. Doctors there examined patients who drank Roundup, either intentionally or accidentally, and determined that their sicknesses and deaths were due to POEA, not glyphosate.

POEA is a surfactant, or detergent, derived from animal fat. It is added to Roundup and other herbicides to help them penetrate plants' surfaces, making the weed killer more effective.

"POEA helps glyphosate interact with the surfaces of plant cells," explained Negin Martin, a scientist at the National Institute of Environmental Health Sciences in North Carolina, who was not involved in the study. POEA lowers water's surface tension--the property that makes water form droplets on most surfaces--which helps glyphosate disperse and penetrate the waxy surface of a plant.

In the French study, researchers tested four different Roundup formulations, all containing POEA and glyphosate at concentrations below the recommended lawn and agricultural dose. They also tested POEA and glyphosate separately to determine which caused more damage to embryonic, placental and umbilical cord cells.

Glyphosate, POEA and all four Roundup formulations damaged all three cell types. Umbilical cord cells were especially sensitive to POEA. Glyphosate became more harmful when combined with POEA, and POEA alone was more deadly to cells than glyphosate. The research appears in the January issue of the journal Chemical Research in Toxicology.

By using embryonic and placental cell lines, which multiply and respond to chemicals rapidly, and fresh umbilical cord cells, Seralini’s team was able to determine how the chemicals combine to damage cells.

The two ingredients work together to “limit breathing of the cells, stress them and drive them towards a suicide,†Seralini said.

The research was funded in part by France’s Committee for Research and Independent Information on Genetic Engineering, a scientific committee that investigates risks associated with genetically modified organisms. One of Roundup’s primary uses is on crops that are genetically engineered to be resistant to glyphosate.

Monsanto scientists argue that cells in Seralini’s study were exposed to unnaturally high levels of the chemicals. “It's very unlike anything you'd see in real-world exposure. People's cells are not bathed in these things,†said Donna Farmer, another toxicologist at Monsanto.

Seralini’s team, however, did study multiple concentrations of Roundup. These ranged from the typical agricultural or lawn dose down to concentrations 100,000 times more dilute than the products sold on shelves. The researchers saw cell damage at all concentrations.

Monsanto scientists also question the French team’s use of laboratory cell lines.

“These are just not very good models of a whole organism, like a human being,†said Dan Goldstein, a toxicologist with Monsanto.

Goldstein said humans have protective mechanisms that resist substances in the environment, such as skin and the lining of the gastrointestinal tract, which constantly renew themselves. “Those phenomena just don't happen with isolated cells in a Petri dish.â€

But Cox, who studies pesticides and their inert ingredients at the Oakland environmental group, says lab experiments like these are important in determining whether a chemical is safe.

“We would never consider it ethical to test these products on people, so we're obliged to look at their effects on other species and in other systems,†she said. “There's really no way around that.â€

Seralini said the cells used in the study are widely accepted in toxicology as good models for studying the toxicity of chemicals.

“The fact is that 90 percent of labs studying mechanisms of toxicity or physiology use cell lines,†he said.

Most research has examined glyphosate alone, rather than combined with Roundup’s inert ingredients. Researchers who have studied Roundup formulations have drawn conclusions similar to the Seralini group’s. For example, in 2005, University of Pittsburg ecologists added Roundup at the manufacturer’s recommended dose to ponds filled with frog and toad tadpoles. When they returned two weeks later, they found that 50 to 100 percent of the populations of several species of tadpoles had been killed.

A group of over 250 environmental, health and labor organizations has petitioned the EPA to change requirements for identifying pesticides’ inert ingredients. The agency’s decision is due this fall.

“It would be a big step for the agency to take,†said Cox. “But it’s one they definitely should.â€

The groups claim that the laws allowing manufacturers to keep inert ingredients secret from competitors are essentially unnecessary. Companies can determine a competitor’s inert ingredients through routine lab analyses, said Cox.

"The proprietary protection laws really only keep information from the public," she said.

 

--
To subscribe: MedicalConspiracies-subscribe@googlegroups.com
 
DETOX WITH All NATURAL PURE GREEN CALCIUM BENTONITE CLAY USED INTERNAL/EXTERNAL http://clayadvantage.com/
 
Information here in is for educational purpose only; it may be news related, purely
speculation or SOMEONE'S OPINION. Consult with a qualified MD before deciding on any course of treatment, especially for serious or life-threatening illnesses.
By becoming a member of this group you AGREE to hold this group its members, list owners, moderators and affiliates harmless of any liability for any direct, or indirect consequential, incidental, damage incurred.
 
http://www.law.cornell.edu/uscode/17/107.shtml
In accordance with Title 17 U.S.C. Section 107,
**COPYRIGHT NOTICE



--
Palash Biswas
Pl Read:
http://nandigramunited-banga.blogspot.com/

No comments:

मैं नास्तिक क्यों हूं# Necessity of Atheism#!Genetics Bharat Teertha

হে মোর চিত্ত, Prey for Humanity!

मनुस्मृति नस्ली राजकाज राजनीति में OBC Trump Card और जयभीम कामरेड

Gorkhaland again?আত্মঘাতী বাঙালি আবার বিভাজন বিপর্যয়ের মুখোমুখি!

हिंदुत्व की राजनीति का मुकाबला हिंदुत्व की राजनीति से नहीं किया जा सकता।

In conversation with Palash Biswas

Palash Biswas On Unique Identity No1.mpg

Save the Universities!

RSS might replace Gandhi with Ambedkar on currency notes!

जैसे जर्मनी में सिर्फ हिटलर को बोलने की आजादी थी,आज सिर्फ मंकी बातों की आजादी है।

#BEEFGATEঅন্ধকার বৃত্তান্তঃ হত্যার রাজনীতি

अलविदा पत्रकारिता,अब कोई प्रतिक्रिया नहीं! पलाश विश्वास

ভালোবাসার মুখ,প্রতিবাদের মুখ মন্দাক্রান্তার পাশে আছি,যে মেয়েটি আজও লিখতে পারছেঃ আমাক ধর্ষণ করবে?

Palash Biswas on BAMCEF UNIFICATION!

THE HIMALAYAN TALK: PALASH BISWAS ON NEPALI SENTIMENT, GORKHALAND, KUMAON AND GARHWAL ETC.and BAMCEF UNIFICATION! Published on Mar 19, 2013 The Himalayan Voice Cambridge, Massachusetts United States of America

BAMCEF UNIFICATION CONFERENCE 7

Published on 10 Mar 2013 ALL INDIA BAMCEF UNIFICATION CONFERENCE HELD AT Dr.B. R. AMBEDKAR BHAVAN,DADAR,MUMBAI ON 2ND AND 3RD MARCH 2013. Mr.PALASH BISWAS (JOURNALIST -KOLKATA) DELIVERING HER SPEECH. http://www.youtube.com/watch?v=oLL-n6MrcoM http://youtu.be/oLL-n6MrcoM

Imminent Massive earthquake in the Himalayas

Palash Biswas on Citizenship Amendment Act

Mr. PALASH BISWAS DELIVERING SPEECH AT BAMCEF PROGRAM AT NAGPUR ON 17 & 18 SEPTEMBER 2003 Sub:- CITIZENSHIP AMENDMENT ACT 2003 http://youtu.be/zGDfsLzxTXo

Tweet Please

Related Posts Plugin for WordPress, Blogger...

THE HIMALAYAN TALK: PALASH BISWAS BLASTS INDIANS THAT CLAIM BUDDHA WAS BORN IN INDIA

THE HIMALAYAN TALK: INDIAN GOVERNMENT FOOD SECURITY PROGRAM RISKIER

http://youtu.be/NrcmNEjaN8c The government of India has announced food security program ahead of elections in 2014. We discussed the issue with Palash Biswas in Kolkata today. http://youtu.be/NrcmNEjaN8c Ahead of Elections, India's Cabinet Approves Food Security Program ______________________________________________________ By JIM YARDLEY http://india.blogs.nytimes.com/2013/07/04/indias-cabinet-passes-food-security-law/

THE HIMALAYAN TALK: PALASH BISWAS TALKS AGAINST CASTEIST HEGEMONY IN SOUTH ASIA

THE HIMALAYAN VOICE: PALASH BISWAS DISCUSSES RAM MANDIR

Published on 10 Apr 2013 Palash Biswas spoke to us from Kolkota and shared his views on Visho Hindu Parashid's programme from tomorrow ( April 11, 2013) to build Ram Mandir in disputed Ayodhya. http://www.youtube.com/watch?v=77cZuBunAGk

THE HIMALAYAN TALK: PALASH BISWAS LASHES OUT KATHMANDU INT'L 'MULVASI' CONFERENCE

अहिले भर्खर कोलकता भारतमा हामीले पलाश विश्वाससंग काठमाडौँमा आज भै रहेको अन्तर्राष्ट्रिय मूलवासी सम्मेलनको बारेमा कुराकानी गर्यौ । उहाले भन्नु भयो सो सम्मेलन 'नेपालको आदिवासी जनजातिहरुको आन्दोलनलाई कम्जोर बनाउने षडयन्त्र हो।' http://youtu.be/j8GXlmSBbbk

THE HIMALAYAN DISASTER: TRANSNATIONAL DISASTER MANAGEMENT MECHANISM A MUST

We talked with Palash Biswas, an editor for Indian Express in Kolkata today also. He urged that there must a transnational disaster management mechanism to avert such scale disaster in the Himalayas. http://youtu.be/7IzWUpRECJM

THE HIMALAYAN TALK: PALASH BISWAS CRITICAL OF BAMCEF LEADERSHIP

[Palash Biswas, one of the BAMCEF leaders and editors for Indian Express spoke to us from Kolkata today and criticized BAMCEF leadership in New Delhi, which according to him, is messing up with Nepalese indigenous peoples also. He also flayed MP Jay Narayan Prasad Nishad, who recently offered a Puja in his New Delhi home for Narendra Modi's victory in 2014.]

THE HIMALAYAN TALK: PALASH BISWAS CRITICIZES GOVT FOR WORLD`S BIGGEST BLACK OUT

THE HIMALAYAN TALK: PALASH BISWAS CRITICIZES GOVT FOR WORLD`S BIGGEST BLACK OUT

THE HIMALAYAN TALK: PALSH BISWAS FLAYS SOUTH ASIAN GOVERNM

Palash Biswas, lashed out those 1% people in the government in New Delhi for failure of delivery and creating hosts of problems everywhere in South Asia. http://youtu.be/lD2_V7CB2Is

THE HIMALAYAN TALK: PALASH BISWAS LASHES OUT KATHMANDU INT'L 'MULVASI' CONFERENCE

अहिले भर्खर कोलकता भारतमा हामीले पलाश विश्वाससंग काठमाडौँमा आज भै रहेको अन्तर्राष्ट्रिय मूलवासी सम्मेलनको बारेमा कुराकानी गर्यौ । उहाले भन्नु भयो सो सम्मेलन 'नेपालको आदिवासी जनजातिहरुको आन्दोलनलाई कम्जोर बनाउने षडयन्त्र हो।' http://youtu.be/j8GXlmSBbbk