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Pesticides and other common chemical pollutants are toxic to ‘good’ gut bacteria, lab-based screening indicates

A large-scale laboratory screening of human-made chemicals has identified 168 chemicals that are toxic to bacteria found in the healthy human gut. These chemicals stifle the growth of gut bacteria thought to be vital for health. The research, including the new machine learning model, is published in the journal Nature Microbiology.

Most of these chemicals, likely to enter our bodies through food, water, and environmental exposure, were not previously thought to have any effect on bacteria.

As the bacteria alter their function to try and resist the chemical pollutants, some also become resistant to antibiotics such as ciprofloxacin. If this happens in the human gut, it could make infections harder to treat.

Innovative materials boost stretchable digital displays’ performance

Organic light-emitting diodes (OLEDs) power the high-end screens of our digital world, from TVs and phones to laptops and game consoles.

If those displays could stretch to cover any 3D or irregular surfaces, the doors would be open for technologies like wearable electronics, medical implants and humanoid robots that integrate better with or mimic the soft human body.

“Displays are the intuitive application, but a stretchable OLED can also be used as the light source for monitoring, detection and diagnosis devices for diabetes, cancers, heart conditions and other major health problems,” said Wei Liu, a former postdoctoral researcher in the lab of University of Chicago Pritzker School of Molecular Engineering (UChicago PME) Assoc. Prof. Sihong Wang.

Eye washing may ease hay fever ocular symptoms and improve quality of life

Hay fever, also known as allergic rhinitis, is the condition responsible for seasonal allergies or allergic reactions to other environmental allergens, like dust mites and animal dander. Estimates vary, but somewhere around 10–30% of the population worldwide experiences hay fever at least occasionally. Symptoms include nasal congestion, headaches, itchy throat and ocular symptoms, like itchy eyes, tearing and redness. Ultimately, these symptoms disrupt daily activities and affect quality of life for hay fever sufferers.

While many medications are available to reduce symptoms, many people prefer to include preventative measures. A new study from Japan, published in Scientific Reports, describes a large-scale survey of hay fever sufferers, comparing those who use eye washing as a preventative measure. The study reports that those using eyewash experience improved symptoms.

Hidden household toxin triples liver disease risk, study finds

PCE, a dry-cleaning chemical found in many everyday products, has been linked to tripled risk of serious liver damage. Scientists have uncovered a new environmental culprit behind liver disease: tetrachloroethylene (PCE), a chemical used in dry cleaning and household products. The study found that people with PCE exposure were three times more likely to develop severe liver scarring, even when traditional risk factors like alcohol or obesity were absent. The chemical is widespread in air, water, and consumer goods, making it a stealthy threat to public health.

Liver disease most often develops due to one of three major causes: excessive alcohol use, the buildup of fat in the liver associated with obesity, diabetes, and high cholesterol, or viral infections such as hepatitis B and C.

Researchers from Keck Medicine of USC have identified another potential cause of liver damage. A new study published in Liver International links tetrachloroethylene (PCE), a chemical widely used in dry cleaning and found in household products like adhesive glues, spot removers, and stainless steel polish, to serious liver harm.

Function of the Spine

Your spine is an important bone structure that supports your body and helps you walk, twist and move. Your spine is made up of vertebrae (bones), disks, joints, soft tissues, nerves and your spinal cord. Exercises can strengthen the core muscles that support your spine and prevent back injuries and pain.


Learn more about what your spine does and how this bone structure is important for your health.

How T cells transform to defend our organs

We owe a lot to tissue resident memory T cells (TRM). These specialized immune cells are among the body’s first responders to disease.

Rather than coursing through the bloodstream—as many T cells do—our TRM cells specialize in defending specific organs. They battle viruses, , , melanomas, and many other health threats.

Pandurangan Vijayanand, M.D., Ph.D., William K. Bowes Distinguished Professor at La Jolla Institute for Immunology (LJI), has even shown that a greater density of TRM cells is linked to better survival outcomes in lung cancer patients.

An Autism Epidemic?

The CDC website now says: “The claim ‘vaccines do not cause autism’ is not an evidence-based claim…” Psychologist David Myers from Hope College summarizes the relevant evidence.


You are an educated reader, so I know that you know that vaccines do not cause autism. However, you probably have also read headlines such as the recent U.S. Health and Human Services release, “Autism Epidemic Runs Rampant.”

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