Bayer AG Weed killer Roundup exposure could be to cause for prostate cancer

A gardener pours weed killer from a bottle into a cap.

Four of the 22 pesticides, were linked to an increased likelihood of death by prostate cancer. Pixavril – stock.adobe.com

Weed killing chemical could be to blame for new crop of cancer

Summary

I'll provide guidance based on both medical and legal considerations:

Medical Steps:

1. Immediate Medical Priority:
- Focus first on your prostate cancer treatment plan with your doctors
- Don't delay recommended medical treatments while pursuing other actions
- Early detection and treatment are critical for prostate cancer outcomes
- The article notes that prostate cancer has many treatment options including:
  - Surgery
  - Chemotherapy
  - Immunotherapy
  - Radiation
  - Targeted drug therapy

2. Medical Documentation:
- Document your Roundup exposure history in detail:
  - How long you used it
  - How frequently
  - In what contexts (work, home gardening, etc.)
- Share this exposure history with your medical team
- Keep copies of all medical records and test results

Legal Options:

1. Legal Consultation:
- Consider consulting with an attorney who specializes in Roundup cases
- There is legal precedent for successful cases:
  - The article mentions a recent $2.25 billion verdict in Pennsylvania
  - The jury found Monsanto negligent in warning about dangers

2. Documentation to Gather:
- Proof of Roundup use (receipts, photos, work records)
- Medical diagnosis documentation
- Timeline of exposure and symptoms
- Any witnesses to your Roundup use

Ongoing Health Monitoring:

1. Know the Symptoms to Monitor:
The article mentions several important symptoms to watch for:
- Urinary symptoms (urgent need, difficulty starting, weak flow)
- Blood in urine or semen
- Bone and back pain
- Weight loss
- Loss of appetite
- Testicular pain

2. Prevention:
- Immediately stop any further exposure to Roundup or similar pesticides
- Follow your doctor's recommendations for screening and monitoring
- Keep all follow-up appointments

Support Resources:

1. Consider joining:
- Prostate cancer support groups
- Legal support groups for those affected by Roundup
- Online communities for information sharing

2. Statistics for Context:
The article notes that:
- 1 in 8 men will be diagnosed with prostate cancer
- Only 1 in 39 (2.6%) will die from it
- It's usually slow-growing with many treatment options

Remember that your immediate health and medical treatment should be your primary focus. Legal actions can be pursued in parallel but shouldn't delay or interfere with your medical care.


This common lawn care staple may increase prostate cancer risk — after company was ordered to pay $2.25 billion

Reda Wigle

More than a dozen chemicals used in popular weed killers like Roundup could be raising the risk of prostate cancer, shocking new research has revealed.

In a report published in the journal Cancer, researchers analyzed 300 pesticides and found that 22 were directly linked to the development of prostate cancer, and four were shown to increase the probability of death.

The study comes after Bayer AG was ordered to pay $2.25 billion in January after a Pennsylvania jury unanimously ruled that its Roundup weed killer gave a man cancer.

In the new study, researchers assessed data related to the annual usage of pesticides between 1997 and 2001 as well as between 2003 and 2006. Taking into account the slow-growing disposition of prostate cancer, they then compared those figures against diagnoses made between 2011 and 2015 and between 2016 and 2020, respectively.

The team said that 19 of the 22 pesticides linked to an increased risk of prostate cancer have not previously been associated with the disease.

Four of the 22 pesticides — trifluralin, cloransulam-methyl, thiamethoxam and diflufenzopyr — were linked to an increased likelihood of death by prostate cancer.

Dr. Simon John Christoph Soerensen, study lead author and prostate cancer expert at Stanford University, noted that his team’s observational research cannot prove causality. However, he is hopeful that the results could “potentially explain” some of the “geographic variation” in prostate cancer diagnoses and deaths across the US.

“By building on these findings, we can work towards reducing the number of men affected by this disease,” he said.

Young man holding a model of the human body after being diagnosed with prostate cancer

Prostate cancer is fueling a cancer epidemic, with 10% of new diagnoses in the U.S. occurring in men under 55. thatinchan – stock.adobe.com

Prostate cancer is fueling a cancer epidemic, with 10% of new diagnoses in the US occurring in men under 55, and deaths from prostate cancer are expected to jump 136% from 2022 to 2050.

Prostate cancer is the second most common form of male cancer after skin cancer. According to the American Cancer Society, prostate cancer is not typically fatal — in part because it is usually slow-growing, is often low-grade, and it has many treatment options are available.

An estimated one in eight men will be diagnosed with prostate cancer, but only one in 39 (or 2.6%) will die from it, according to the National Institutes of Health

As with all cancers, early detection and early-stage treatment are critical to survival.

Treatment for prostate cancer includes surgery, chemotherapy, immunotherapy, radiation, or targeted drug therapy.

Situated below the bladder, the prostate gland’s primary function is semen production and ejaculation.

Prostate problems can manifest as urinary symptoms, including an urgent need to pee and/or difficulty starting the steam, weak flow, or straining.

A white bottle of Roundup weed killer next to a white container.

The manufacturers of Roundup have repeatedly denied that the product is dangerous to human health. MOURAD ALLILI MOURAD/SIPA / Shutterstock

In addition to urinary symptoms, the presence of blood in the urine or semen should be addressed with a doctor immediately. Indicators that advanced prostate cancer has spread include bone and back pain, weight loss, testicular pain and loss of appetite.

Pesticides like the ones observed in this latest study are used as agricultural support to maintain crops, kill weeds and manage insect and vermin infestations.

According to the Daily Mail, pesticide consumption has grown nearly 60 percent since 1990, reaching 5.86 billion pounds by 2020. Pesticides are a blanket term for chemicals that include herbicides, which are specifically used to kill weeds.

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Roundup — the most widely used weed killer in the US — reportedly contains 41% of the herbicide glyphosate, a known endocrine disruptor.

Endocine disruptors interfere with hormone systems, causing side effects like infertility, birth defects, developmental disorders and increased cancer risk.

Roundup also includes 2,4-dichloroacetic acid, also known as 2,4-D. Animal studies have linked exposure to 2,4-D during pregnancy with lower body weight and behavioral issues in offspring. Separate research has established a link between exposure to 2,4-D and an increased risk of lymphoma, as well as kidney and liver damage. 

Person spraying dandelions with a green and yellow atomizer in the garden

The main ingredient in Roundup is a known endocrine disruptor. Getty Images

Monsanto and its owner Bayer AG, the manufacturers of Roundup, have repeatedly denied these dangers and assured the public that thier products pose no threat to human health.

Yet, earlier this year, Bayer AG was ordered to pay $2.25 billion after a Pennsylvania jury unanimously ruled that its Roundup weed killer gave a man cancer.

John McKivinson, 49, who was diagnosed with non-Hodgkin’s lymphoma, sued Roundup maker Monsanto and its corporate parent, Bayer, saying he developed the cancer after using the herbicide on his property for two decades.

McKivinson’s attorneys at Kline & Specter previously told The Post that the massive payout includes $2 billion in punitive damages.

Jury members also found that Monsanto was negligent in warning customers about the dangers of Roundup,

The jury’s ruling is “a declaration that its misconduct was in reckless disregard of human safety and a substantial cause of John McKivison’s cancer.”

 

 


Pesticides and prostate cancer incidence and mortality: An environment‐wide association study

Simon John Christoph Soerensen MD

Cancer

ORIGINAL ARTICLE


Corresponding Author

Simon John Christoph Soerensen MD

Department of Urology, Stanford University School of Medicine, Stanford, California, USA

Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA

Correspondence

Simon John Christoph Soerensen, Center for Academic Medicine, 453 Quarry Road, Urology 5656, Palo Alto, CA 94304, USA.

Email: simonjcs@stanford.edu

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David S. Lim MS

David S. Lim MS

Department of Computer Science, Stanford University School of Engineering, Stanford, California, USA

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Maria E. Montez-Rath PhD

Maria E. Montez-Rath PhD

Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA

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Glenn M. Chertow MD, MPH

Glenn M. Chertow MD, MPH

Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA

Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA

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Benjamin I. Chung MD, MS

Benjamin I. Chung MD, MS

Department of Urology, Stanford University School of Medicine, Stanford, California, USA

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David H. Rehkopf ScD, MPH

David H. Rehkopf ScD, MPH

Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA

Department of Medicine, Stanford University School of Medicine, Stanford, California, USA

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John T. Leppert MD, MS

John T. Leppert MD, MS

Department of Urology, Stanford University School of Medicine, Stanford, California, USA

Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA

Division of Urology, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA

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First published: 04 November 2024

David H. Rehkopf and John T. Leppert contributed equally to this work as senior authors.

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Abstract

Background

Prostate cancer is the most common cancer among men in the United States, yet modifiable risk factors remain elusive. In this study, the authors investigated the potential role of agricultural pesticide exposure in prostate cancer incidence and mortality.

Methods

For this environment-wide association study (EWAS), linear regression was used to analyze county-level associations between the annual use of 295 distinct pesticides (measured in kg per county) and prostate cancer incidence and mortality rates in the contiguous United States. Data were analyzed in two cohorts: 1997–2001 pesticide use with 2011–2015 outcomes (discovery) and 2002–2006 use with 2016–2020 outcomes (replication). The reported effect sizes highlight how a 1-standard-deviation increase in log-transformed pesticide use (kg per county) corresponds to changes in incidence. Analyses were adjusted for county-level demographics, agricultural data, and multiple testing.

Results

Twenty-two pesticides showed consistent, direct associations with prostate cancer incidence across both cohorts. Of these, four pesticides were also associated with prostate cancer mortality. In the replication cohort, each 1-standard-deviation increase in log-transformed pesticide use corresponded to incidence increases per 100,000 individuals (trifluralin, 6.56 [95% confidence interval (CI), 5.04–8.07]; cloransulam-methyl, 6.18 [95% CI, 4.06–8.31]; diflufenzopyr, 3.20 [95% CI, 1.09–5.31]; and thiamethoxam, 2.82 [95% CI, 1.14–4.50]). Limitations included ecological study design, potential unmeasured confounding, and lack of individual-level exposure data.

Conclusions

The results of this study suggest a potential link between certain pesticides and increased prostate cancer incidence and mortality. These findings warrant further investigation of these specific pesticides to confirm their role in prostate cancer risk and to develop potential public health interventions.

CONFLICT OF INTEREST STATEMENT

Benjamin I. Chung reports personal/consulting fees from Johnson & Johnson Health Care Systems Inc. and VPIX and travel support from Intuitive Surgical, Inc., outside the submitted work. John T. Leppert reports personal/consulting fees from Telix outside the submitted work. The remaining authors declared no conflicts of interest.

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