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Published on Leave a comment on Sometimes Getting A Tattoo Can Result in Eye Problems
Tattoo Credit: Wikipedia

Tattoos are incredibly popular throughout the world. One rare, but very concerning result from getting a tattoo is tattoo-associated uveitis. This is an inflammation of the eye, which can even cause permanent vision loss.

The most common health complications of tattoos are local inflammations, infections, allergic reactions at the site of the tattoo, and other inflammatory immune responses. Uveitis is a rare inflammatory response, which is consistently  associated with long-term inflammation at the tattoo site (meaning that the inflammation has spread to the eye).

A recent review of studies found that tattoo-associated uveitis was associated with black ink and larger tattoos. Uveitis treatments included: 70.5% of individuals were treated with corticosteroids (with 50% needing long-term treatment), immunosuppressants (38.6%), and 16% had removal of the tattoo by excision. 16% also needed intraocular pressure management.

Different countries have different regulations regarding tattoo inks, with the European Union having stricter regulations than other countries. While the following article discusses tattoo-associated uveitis cases in Australia, it also occurs in the United States.

Bottom line: Monitor tattoos to see if there is long-term inflammation (swelling, redness).

Excerpts from The Conversation: What’s the link between tattoos and vision loss? 2 optometrists explain

Getting a tattoo can be a thrilling, albeit painful, experience.

About one-third of Australians have a tattoo, with many getting inked as a rite of passage. However, a small but increasing number of Australians are being diagnosed with a rare tattoo-related eye condition. It’s known as tattoo-associated uveitis and can cause permanent vision loss. ...continue reading "Sometimes Getting A Tattoo Can Result in Eye Problems"

Published on Leave a comment on Fixing Indoor Mold Problems Results In Fewer Asthma ER Visits
Indoor mold Credit: Wikipedia

Mold exposure can be a trigger for respiratory ailments, including sinusitis and asthma. A recent study conducted in New York City's public housing found that fixing mold problems in apartments led to a big decrease in emergency visits for severe asthma attacks. Duh!...of course...

They found an average of nine fewer asthma-related emergency department visits per 1000 residents per year, or nearly 2800 fewer emergency department visits per year overall. Residents in nearby housing (apartments) not part of NY City's Housing Authority was the comparison group.

It makes sense that when the trigger for an asthma attack is removed, that there are fewer asthma attacks resulting in emergency room visits. But at least now the results have been quantified in a study. (NOTE: the study did not look at incidence of sinusitis, but one would expect the same type of results - if prolonged mold exposure triggers sinusitis, then cleaning it up prevents sinusitis).

From Medscape: Fix Mold, Reduce Asthma ED Visits?

An effort to remediate mold in public housing in New York City (NYC) was associated with thousands fewer emergency department visits for asthma per year, according to research presented at the American Academy of Allergy, Asthma & Immunology (AAAAI)2026 Annual Meeting. ...continue reading "Fixing Indoor Mold Problems Results In Fewer Asthma ER Visits"

Published on Leave a comment on Carrageenan May Be A Problem In Those With Red Meat Allergies Caused By Tick Bites
Lone star tick Credit: Wikipedia

Tick bites from the lone star tick are increasingly resulting in the alpha-gal syndrome in the United States. This syndrome results in an intense delayed allergic response to red meat (beef, pork, and lamb), dairy products, and gelatin. Researchers have now found another common food ingredient that may cause an allergic response in those with the syndrome: carrageenan.

Carrageenan is derived from seaweed and is a commonly used emulsifier in foods and an ingredient in medications. A recent study of 562 individuals with self-reported alpha-gal syndrome found that about 11% reported an allergic response to carrageenan.

Following up on this in larger groups of people (how pervasive is carrageenan allergy in alpha-gal syndrome?) will be interesting. Many drugs don't report ingredient lists, and how many people actually read food ingredient lists? Unfortunately, someone trying to avoid dairy products due to alpha-gal syndrome may instead eat non-dairy ice cream - which contains carrageenan (as a thickener)!

From Medscape: Carrageenan: A Potential Allergen for Patients With Alpha-Gal Syndrome

 Carrageenan is the second most commonly self-reported allergy by individuals with alpha-gal syndrome, surpassing nearly all other alpha-gal-containing food allergens, according to a research poster presented at the American Academy of Allergy, Asthma & Immunology (AAAAI) 2026 Annual Meeting. ...continue reading "Carrageenan May Be A Problem In Those With Red Meat Allergies Caused By Tick Bites"

Published on Leave a comment on Chemical Exposure Linked to Liver Scarring
Human liver Credit: Wikipedia

Not all cleaning products or chemicals used in dry cleaning are safe to use. A recent study found that the chemical tetrachloroethylene (PERC or PCE) can cause serious liver harm in the form of liver fibrosis, and that the effects are dose dependent for liver fibrosis. The more a person is exposed, the greater the risk of developing liver fibrosis.

PERC is a chemical that used to be found in household products, such as spot removers, furniture stripper, adhesive glues, suede protectors, spray-on water repellents, but is being phased out. It is also commonly used in dry cleaning of clothing, and it has 10 years to phase out. It will continue to be used in a number of industrial settings, for example, as a degreaser. Tetrachloroethylene (PERC) is a volatile organic compound (VOC).

Liver fibrosis is the buildup of tough scar tissue in the liver resulting from chronic inflammation and persistent damage. Unfortunately, over time this scarring can progress to liver failure or liver cancer.

Bottom line: Avoid products with PERC. The danger is in inhaling the chemical's fumes or getting it on your skin (contact with the chemical). Nowadays PERC is mainly used in industrial settings (resulting in occupational exposure). It is being phased out in consumer products and dry cleaning because it is a carcinogen (cancer causing).

From Science Daily: Hidden household toxin triples liver disease risk, study finds

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. ...continue reading "Chemical Exposure Linked to Liver Scarring"

Published on Leave a comment on Microplastics Found In Higher Levels In Prostate Cancer Tumors
Credit: Wikipedia

Microplastics are turning up everywhere in our environment, including us. A recent small study found microplastics in 90% of human prostate cancer tumors, and at much higher levels than in nearby healthy tissue.

The tumor samples contained about 2.5 times more plastic than nearby healthy prostate tissue. This led the researchers to suggest that microplastic exposure may be a risk factor for prostate cancer. This is because chronic inflammation is considered a risk factor for the development of cancer.

Microplastics are tiny plastic particles (smaller than 5 millimeters) that occur as plastics get worn down, degrade, or get heated. They get into the air, water, soil, and throughout the environment. The particles are so small that after they are inhaled or ingested (in our food and water), they travel to the lungs, blood, and organs. The health effects of plastic particles in our bodies are still mainly unknown, but so far studies are finding oxidative stress and chronic inflammation.

From Science Daily: Microplastics found in 90% of prostate cancer tumors, study reveals

A new study has found tiny plastic particles in nine out of 10 men diagnosed with prostate cancer. Researchers also discovered that these microplastics were present at higher concentrations in cancerous tumors than in nearby noncancerous prostate tissue. ...continue reading "Microplastics Found In Higher Levels In Prostate Cancer Tumors"

Published on Leave a comment on Tires Are A Source Of Microplastics In Urban Air

There is much concern over the amounts of microplastics and nanoplastics in the environment, especially since they are turning up wherever we look. Including inside human bodies (e.g., the brain, blood, lungs, our bones), with mainly unknown health effects. A recent study found that an important source of microplastics and nanoplastics in urban air (in heavy traffic areas) comes from vehicle tires.

This occurs from tire abrasion - tires get worn down when vehicles are driven and also when braking occurs, and the tire abrasion particles get released into the air. In this study, they accounted for about 65% of the total plastic particles in the air in a heavy traffic area in Leipzig, Germany. Microplastics are smaller than 5 mm, and nanoparticles are even smaller (smaller than 1 micrometer).

According to the researchers, residents spending 24 hours a day in the high traffic area would inhale approximately 2.1 micrograms of plastic particulates per day, which is about 0.7 milligrams per year. So far it other studies find that this can result in oxidative stress and chronic inflammatory reactions in the lungs.

From Phys.org: Microplastics and nanoplastics in urban air originate mainly from tire abrasion, research reveals

Although plastic particles in the air are increasingly coming into focus, knowledge about their distribution and effects is still limited. Chemical analyses from Leipzig now provide details from Germany for the first time: Around 4% of the particulate matter consists of plastic. Around two-thirds of this comes from tire abrasion. ...continue reading "Tires Are A Source Of Microplastics In Urban Air"

Published on Leave a comment on Spring Is Here!
Winter aconite flowers

March 1 is the first meteorological day of spring.

There were cold temperatures, strong winds, and deep snow (up to 2 feet in the NYC metro area) earlier this week. But as soon as the temperatures warmed a few days later - the first spring flowers made their appearance next to the melting snow.

Published on Leave a comment on Consuming Coffee Or Tea Daily Associated With Lower Risk of Dementia
Cup of coffee Credit: Wikipedia

Once again, a recent study found that daily consumption of coffee has health benefits.

Recent research found that drinking a moderate amount of coffee (2 to 3 cups of daily) or 1 to 2 cups of tea daily was associated with a lower risk of dementia and better cognitive function. Decaf coffee appeared to have no effect on risk of dementia or cognitive functioning.

Persons with the highest intake (2 to 3 cups or more daily) of caffeinated coffee had an 18% lower risk of dementia compared with those who drank little or no caffeinated coffee. The large study followed people for as long as 43 years.

From Medical Xpress: Consuming 2–3 cups of coffee daily associated with lower dementia risk, better cognitive function

A new prospective cohort study by investigators from Mass General Brigham, Harvard T.H. Chan School of Public Health, and the Broad Institute of MIT and Harvard analyzed 131,821 participants from the Nurses' Health Study (NHS) and Health Professionals Follow-Up Study (HPFS), finding that moderate consumption of caffeinated coffee (two to three cups a day) or tea (one to two cups a day) reduced dementia risk, slowed cognitive decline, and preserved cognitive function. ...continue reading "Consuming Coffee Or Tea Daily Associated With Lower Risk of Dementia"

Published on Leave a comment on Elderberries Have Health Benefits
Elderberries Credit: Wikipedia

People are always looking for foods that seem especially beneficial for health. Colorful vegetables and fruits fall into this category, especially berries, because of the polyphenols they contain. Recent research found that elderberries may help with insulin control, reduce fat production, and improve metabolic health - at least in this study using mice.

Interestingly, the researchers found that the microbes in the gut break down the polyphenols in foods. The researchers pointed out that other fruits and berries have similar effects to elderberries. But be careful - don't eat large amounts of raw elderberries by the fistful, because unripe elderberries also contain cyanide, which can cause nausea and vomiting.

Excerpts from Food and Wine: This Antioxidant-Rich Berry Could Be a Big Deal for Blood Sugar Control, Researchers Say

    • Researchers at the Cleveland Clinic found that a compound in elderberries, cinnamic acid, may help improve insulin control and reduce fat production in mice with a healthy gut microbiome.
    • The study shows that gut bacteria can transform elderberry compounds into metabolites that support improved metabolic health, potentially informing treatments for insulin resistance and fatty liver disease.
    • While promising, scientists caution that more research is needed before recommending elderberry supplements — and remind readers that raw elderberries can be toxic if eaten unripe.

...continue reading "Elderberries Have Health Benefits"