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Thursday, June 16, 2022

Glyphosate-based Herbicides causes Breast Cancr

Glyphosate-based Herbicides - Breast Cancer Prevention Partners (BCPP)

In 2015 the International Agency for Research on Cancer (IARC) classified glyphosate as a ‘probable human carcinogen’.[7] However, in 2016 the U.S. EPA concluded that glyphosate is ‘not likely to be carcinogenic to humans’, based primarily on studies of non-occupational exposures.[8],[9]

In addition to containing high proportions of the active herbicidal ingredient glyphosate, GBHs also contain numerous other ingredients which may interact with glyphosate or have physiological effects of their own.

A 2021 study examined urinary AMPA levels and later development of breast cancer in Hawaiian women participating in the Multiethnic Cohort Study. AMPA was detected in most urine samples tested, although it was found in significantly more samples from women who went on to develop breast cancer in the next 10-15 years than in long-term healthy women. After adjusting for factors including race/ethnicity, age, and body mass index (BMI; a measure of relative obesity), there was a 4.5-fold increase in risk for developing breast cancer in women with the highest, vs the lowest, concentrations of urinary AMPA.[10]

In animal studies, exposure of young, postnatal male rats to low doses of GBHs led to changes in the mammary gland at the time of weaning. By early adulthood, these exposures were associated with further changes indicating an increased risk for developing mammary tumors.[11]  Low dose exposure of GBH to postnatal female rats led to long term changes in mammary gland structure in adulthood. These changes included an increase in the percent of mammary ductal cells with hyperplasia (increased proliferation) as well as morphological changes indicative of a pre-cancer state.[12]

While unfortunately this study did not look at mammary gland outcomes, the exposure of pregnant rats to GBH led to reproductive problems in the daughter pups of those pregnant dams, and structural congenital anomalies, delayed fetal growth and increased placental weight in the granddaughters (F2 generation) of the dams, even though the daughters were only exposed to GBHs during gestation.[13] Whether these transgenerational effects would be found in altered mammary gland structure and function, as well as risk for tumor development, remains to be studied.

Exposure of hormone receptor positive (ER+) human breast cells (MCF-7) in culture to commercial GBHs led to an increase in estrogen-induced cell proliferation. On the other hand, additives found in addition to glyphosate in commercial GBH formulations, did not activate the estrogen pathways in the MCF-7 cells.[14]

In another series of studies using cultured breast cancer cells, short term exposures of very low doses of GBH (Roundup) led to disruption of the cell cycle and DNA repair mechanisms in both estrogen receptor positive (MCF-7) and estrogen receptor negative (MDA-MB-468) cells.[15] Thus while glyphosate, alone, leads to increases in cell proliferation in this laboratory model, use of GBHs containing both the glyphosate and the additives found in Roundup, leads to cell death.

Who is most likely to be exposed to GBHs?

There are relatively few studies documenting glyphosate and GBH levels in people, and the National Health and Nutrition Examination Survey (NHANES) does not include glyphosate or its commercial products in the library of chemicals it tests for in human urine and serum. Those studies that have been conducted indicate that agricultural workers who are exposed to GBHs, and their family members have significant body burdens of the chemicals, as do people who live in the general area where crops are sprayed. For people living in comparable areas, children have higher levels than do adults.[16]

Since there is not regular NHANES or other large-scale measurement of glyphosate and GBH levels, less is known about levels in the general population although a few studies have found measurable levels in urine sample from non-occupationally exposed people, including pregnant women.[17]

Who is most vulnerable to the health effects of GBHs?

Anyone exposed to glyphosate-based herbicides is susceptible to the endocrine-disrupting effects of the chemical. Glyphosate acts through estrogenic pathways suggesting that exposures during critical periods of breast development (e.g., gestation, early childhood, adolescence, pregnancy) may lead to deleterious effects on later risk for developing breast cancer.

What are the top tips to avoid exposure to glyphosate-based herbicides?

  • If outside in agricultural areas, wear fitted protective clothing including long sleeves, pants, boots, gloves and masks when exposed to pesticides containing toxic chemicals. Clothing made of synthetic material is more resistant to penetration by herbicides, and non-organic cotton may be contaminated by glyphosate.[18],[19]
  • Wash produce well before eating. Where possible, buy USDA certified organic produce, which has not been treated with pesticides or herbicides. This includes oats, soy and other beans, in addition to fruits and vegetables.

 

Updated 2021

[1] Thongprakasiang, Siriporn et al. “Glyphosate induces human breast cancer cells growth via estrogen receptors.” Food and Chemical Toxicology 59 (2013): 129-136. doi:10.1016/j.fct.2013.05.057.

[2] Zanardi, María V et al. “Glyphosate-based herbicide induces hyperplastic ducts in the mammary gland of aging Wistar rats.” Molecular and Cellular Endocrinology 501 (2020): 110658. doi:10.1016/j.mce.2019.110658.

[3] Benbrook, Charles M. “Trends in glyphosate herbicide use in the United States and globally.” Environmental Sciences Europe 28,1 (2016): 3. doi:10.1186/s12302-016-0070-0.

[4] Benbrook, Charles M. “Trends in glyphosate herbicide use in the United States and globally.” Environmental Sciences Europe 28,1 (2016): 3. doi:10.1186/s12302-016-0070-0.

[5] Gillezeau, Christina et al. “The evidence of human exposure to glyphosate: a review.” Environmental Health: A Global Access Science Source 18,1 (2019): 2. doi:10.1186/s12940-018-0435-5.

[6] Parvez, S et al. “Glyphosate exposure in pregnancy and shortened gestational length: a prospective Indiana birth cohort study.” Environmental Health: A Global Access Science Source 17,1 (2018): 23. doi:10.1186/s12940-018-0367-0.

[7] IARC Monographs on the Evaluation of Carcinogenic Risks to Humans Volume 112. “Some Organophosphate Insecticides and Herbicides.” 2017. http://monographs.iarc.fr/ENG/Monographs/vol112/mono112-10.pdf. Accessed 18 Nov 2020.

[8] Benbrook, Charles M. “Trends in glyphosate herbicide use in the United States and globally.” Environmental Sciences Europe 28,1 (2016): 3. doi:10.1186/s12302-016-0070-0.

[9] Zanardi, María V et al. “Glyphosate-based herbicide induces hyperplastic ducts in the mammary gland of aging Wistar rats.” Molecular and Cellular Endocrinology 501 (2020): 110658. doi:10.1016/j.mce.2019.110658.

[10] Franke, Adrian A et al. “Pilot study on the urinary excretion of the glyphosate metabolite aminomethylphosphonic acid and breast cancer risk: The Multiethnic Cohort study.” Environmental Pollution 277 (2021): 116848. doi:10.1016/j.envpol.2021.116848.

[11] Altamirano, Gabriela A. et al. “Postnatal exposure to a glyphosate-based herbicide modifies mammary gland growth and development in Wistar male rats.” Food and Chemical Toxicology 118 (2018): 111-118. doi:10.1016/j.fct.2018.05.011.

[12] Zanardi, María V et al. “Glyphosate-based herbicide induces hyperplastic ducts in the mammary gland of aging Wistar rats.” Molecular and Cellular Endocrinology 501 (2020): 110658. doi:10.1016/j.mce.2019.110658.

[13] Milesi et al. “Perinatal exposure to a gylphosate-based herbicide impairs female reproductive outcomes and induces second-generation adverse effects in Wistar rats.” Reproductive Toxicology 92 (2018): 2629-2643. doi:10.1007/s00204-018-2236-6.

[14] Mesnage, Robin, et al. “Evaluation of estrogen receptor alpha activation by glyphosate-based herbicide constituents.” Food and Chemical Toxicology 108 (2017): 30-42. doi:10.1016/j.fct.2017.07.025.

[15] Stur, Elaine, et al. “Glyphosate-based herbicides at low doses affect canonical pathways in estrogen positive and negative breast cancer cell lines.” PLOS One 14:7 (2019): e0219610. doi:/10.1371/journal.pone.0219610.

[16] Gillezeau, Christina, et al. “The evidence of human exposure to glysphosate: a review.”  Environmental Health 18 (2019): 2. doi:10.1186/s12940-018-0435-5.

[17] Parvez, S et al. “Glyphosate exposure in pregnancy and shortened gestational length: a prospective Indiana birth cohort study.” Environmental Health: A Global Access Science Source 17,1 (2018): 23. doi:10.1186/s12940-018-0367-0.

[18] Damalas, Christos A, and Spyridon D Koutroubas. “Farmers’ Exposure to Pesticides: Toxicity Types and Ways of Prevention.” Toxics 4,1 (2016): 1. doi:10.3390/toxics4010001.

[19] Alexander, Bruce H et al. “Biomonitoring of 2,4-dichlorophenoxyacetic acid exposure and dose in farm families.” Environmental Health Perspectives 115, 3 (2007): 370-6. doi:10.1289/ehp.8869.

Monday, June 06, 2022

The War Will Not Be Forgotten

this is the fundamental patriachry paradigm of divide and conquer. . . 
The War Against the Unvaxxed Will Not Be Forgotten

Fomenting hatred is a tool of tyrants, and over the past two years, political leaders, agency heads, academics, medical professionals and media personalities alike have publicly encouraged hatred and violence and wished painful death upon anyone who didn’t want to be part of the medical experiment that is the COVID jabs.

In an eloquent Medium post, journalist Susan Dunham summarizes the lessons (hopefully) learned from hating and attacking the unvaccinated:1

“The mandates have let up, and both sides stumble back into something that looks like the old normal — except that there is a fresh and present injury done to the people we tried to break. And no one wants to talk about it.

Only weeks ago, it was the admitted goal of our own leaders to make life unlivable for the unvaccinated. And as a deputized collective, we force-multiplied that pain, taking the fight into our families, friendships, and workplaces. Today, we face the hard truth that none of it was justified — and, in doing that, uncover a precious lesson.

It was a quick slide from righteousness to cruelty, and however much we might blame our leaders for the push, we’re accountable for stepping into the trap despite better judgement.

We knew that waning immunity put vast numbers of the fully vaccinated on par with the shrinking minority of unvaccinated, yet we marked them for special persecution. We said they hadn’t ‘done the right thing’ by turning their bodies over to state care — even though we knew that principled opposition to such a thing is priceless in any circumstance ...

And so it was by the willful ignorance of science, civics, and politics that we squeezed the unvaccinated to the degree that we did ... [W]e cannot hold our heads high, as if believing we had logic, love, or truth on our side while we viciously wished death upon the unvaccinated. The best we can do is sit in the awareness of our rabid inhumanity for having cast so many aside ...

[B]etting against them has been a scathing embarrassment for many of us who’ve now learned that the mandates only had the power we gave them. It was not through quiet compliance that we avoided endless domination by pharmaceutical companies and medical checkpoints at every doorway.

It was thanks to the people we tried to tear down ... We took the bait by hating them, but their perseverance bought us the time to see we were wrong. It seems right now like the mandates will return, but this time there’s hope that more of us will see them for what they are: a rising authoritarianism that has no concern for our wellbeing.”