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Articles on Toxicity

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Chemotherapy is used to treat all lung cancer patients. Yet many would not need such invasive treatment if diagnosis of the risk of recurrence were more refined. A new technology could change all that. (Shutterstock)

Lung cancer: Predicting which patients are at high risk of recurrence to improve outcomes

Treatment for lung cancer patients is the same for everyone, regardless of the risk of recurrence. The use of a new technology could refine diagnosis.
Quaternary ammonium compounds can linger on surfaces and in indoor air and dust long after the disinfectant has dried. Guido Mieth/DigitalVision via Getty Images

Disinfectants and cleaning products harboring toxic chemicals are widely used despite lack of screening for potential health hazards

Quaternary ammonium compounds, also known as QACs or quats, are commonly used antimicrobials also found in many household products. Soap and water may be a safer bet when cleaning surfaces.
This image shows pancreatic cancer cells (blue) growing, encased within membranes (red). Min Yu/Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC via NIH/Flickr

Triggering cancer cells to become normal cells – how stem cell therapies can provide new ways to stop tumors from spreading or growing back

Many tumors have cancer stem cells that help them grow and evade treatments. Differentiation therapy forces these cells to mature, stopping growth with less toxicity than traditional treatments.
Herbal remedies are commonplace in Uganda; testing these scientifically is a good way to ensure they’re safe and effective. Ava Peattie/Shutterstock

Herbal skin treatments in Uganda get an important scientific boost

It is important that herbal medicine be checked for its safety, its potential to treat particular ailments, and to ascertain its chemical components.
Annie Storey holds a cross with a photo of her late son Alex Storey, before a march to mark the five-year anniversary of British Columbia declaring a public health emergency in the overdose crisis, in Vancouver, on April 14, 2021. CANADIAN PRESS/Darryl Dyck

Overdose crisis: The COVID-19 pandemic has laid bare decades of drug policy failures

Across the country, overdose deaths have spiked during the COVID-19 pandemic.
Breathing pure oxygen would be like fireworks exploding in your body. And that’s not always a good thing. Shutterstock

Curious Kids: what happens if you breathe pure oxygen?

You might think the more oxygen you breathe in the better. But too much oxygen can make you sick.
When people went to their GP asking for painkillers, they weren’t prescribed higher doses of codeine or stronger opioids, as some feared. from www.shutterstock.com

Here’s what happened when codeine was made prescription only. No, the sky didn’t fall in

When codeine became a prescription only drug in 2018, the number of overdoses dropped, our new research shows. But restricting sales of codeine is only one way to reduce harm from opioids.

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