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Published on Leave a comment on Garlic Extract Mouthwash Appears Promising

There has been discussion over the years regarding mouthwash - what are the harms and benefits? Does using mouthwash regularly disrupt the oral (mouth) microbiome? Chlorhexidine mouthwash is generally considered the best for treating gingivitis and killing bacteria.

Researchers at the College of Dental Medicine, Univ. of Sharjah in the UAE, recently published a review of studies comparing garlic extract mouthwash vs chlorhexidine mouthwash. They found that garlic mouthwash can be as effective as chlorhexidine mouthwash.

Garlic (Allium sativum) has natural antimicrobial properties. The researchers found that among the studies there were some differences in effectiveness for both types of mouthwash depending on the concentration used and duration of application.

However, one negative they found is that garlic mouthwash can be more uncomfortable to use - it can cause a burning sensation and unpleasant taste.

Excerpts from Science Daily: Garlic mouthwash shows shockingly strong germ-fighting power

Garlic extract has been found to offer antimicrobial effects that are on par with commonly used antiseptics and disinfectants such as chlorhexidine, according to medical researchers at the University of Sharjah.

The study, published in the Journal of Herbal Medicine, reports that garlic-based mouthwash may produce more discomfort than chlorhexidine but appears to provide longer-lasting residual activity.

...continue reading "Garlic Extract Mouthwash Appears Promising"

Published on Leave a comment on Coffee and Liver Health

The health benefits of regularly drinking coffee keep increasing. A recent study confirmed that consuming coffee on a regular basis reduces the incidence of liver disease and slows the progression of several liver diseases.

The study authors write that coffee contains a number of bioactive compounds (e.g., caffeine, polyphenols, diterpenes) which have "anti-inflammatory, antioxidant, antifibrotic, and anticancer properties".

In other words, enjoy your daily coffee. It's good for you!

Excerpts from Medscape: Regular Coffee Drinking Can Protect and Restore Liver Health

TOPLINE: Several bioactive compounds in coffee exert antioxidant, anti-inflammatory, antifibrotic, and metabolic effects that reduce the incidence and progression of liver diseases. ...continue reading "Coffee and Liver Health"

Published on Leave a comment on Hair Straighteners Continue to Cause Kidney Harm
Natural hair, not straightened Credit: Wikipedia

For a few years there have been reports and research of hair straightening chemicals causing health harms, specifically kidney damage. Even kidney failure. Yet the use of these dangerous products continues in a number of countries, including the US, France, and Israel.

The problem appears to be the glyoxylic acid in some hair-straightening products. Bottom line: Read the ingredient lists on hair straightening products and avoid those with glyoxylic acid.

Excerpts from The Times of Israel: 17-year-old girl hospitalized for kidney failure after hair-straightening treatment

A 17-year-old girl who underwent a hair-straightening treatment was hospitalized with severe kidney failure at Shaare Zedek Medical Center, the hospital reports.

Another woman, 25, also suffered from kidney failure caused by hair straightening a little over a month ago. ...continue reading "Hair Straighteners Continue to Cause Kidney Harm"

Published on Leave a comment on Another Widely Used Pesticide Is Linked to Parkinson’s Disease

Yikes! While writing the last post, I came across a recent study of another pesticide linked with the development of Parkinson's disease. While the weed killer paraquat has long been linked to Parkinson's disease, certain other pesticides are also linked - such as chlorpyrifos.

Chlorpyrifos is a widely used insecticide in agriculture. While now banned for household use, homeowners used to use it (e.g., in the product Raid) for insect control for many years.

The study researchers (at the medical school at UCLA) found that long-term residential exposure to chlorpyrifos is associated with more than a 2.5 times increased risk of developing Parkinson's disease. They studied humans, mice, and zebrafish to reach their conclusions. They found that chlorpyrifos damages dopamine-producing brain cells - which are the same cells damaged in Parkinson's disease.

From Medical Xpress: Widely used pesticide linked to more than doubled Parkinson's risk

A new study from UCLA Health has found that long-term residential exposure to the pesticide chlorpyrifos is associated with more than a 2.5-fold increased risk of developing Parkinson's disease. ...continue reading "Another Widely Used Pesticide Is Linked to Parkinson’s Disease"

Published on Leave a comment on The Link Between Parkinson’s Disease and the Pesticide Paraquat

Once again, a pesticide banned in many other countries due to its harmful effects on humans and the environment, is allowed to be used in the US. The incredibly dangerous pesticide paraquat is banned in more than 70 countries, including China (where it is made), but not the US. Paraquat (paraquat dichloride) is a highly toxic weed killer used by farmers.

Many studies and farmers themselves report that paraquat causes Parkinson's disease. Currently there are thousands of lawsuits against Syngenta, the manufacturer, and Chevron USA (the seller). [NOTE: Of course Syngenta denies any link between paraquat exposure and Parkinson's disease.] The US Geological Survey reports that between 11 million and 17 million pounds of paraquat are sprayed annually on American farms. But here's the crazy part: use of the pesticide in the US is increasing annually. WTH?

By the way, Parkinson’s disease is the fastest growing neurological disorder in the world, with about 90,000 new cases diagnosed each year in the US. A number of pesticides are linked with the increase, with the link between paraquat and Parkinson's disease known since the 1980s (by research done by independent researchers). Evidence is growing that it's not just direct exposure (contact with it), but also chronic low level exposure that is linked to Parkinson's disease (e.g., living near a farm - thus inhalation of low levels in the air).

What will it take to ban the use of paraquat in the US? (Yes, there are alternatives to paraquat.) Doesn't look likely in the near future. In fact, the chemical/pesticide industry is trying to pass state and federal laws that would protect pesticide manufacturers from liability.

Excerpts from an investigative piece. From nj.com news: Thousands of U.S. farmers have Parkinson’s. They blame a deadly pesticide.

Paul Friday remembers when his hand started flopping in the cold weather – the first sign nerve cells in his brain were dying.

He was eventually diagnosed with Parkinson’s, a brain disease that gets worse over time. His limbs got stiffer. He struggled to walk. He couldn’t keep living on his family farm. Shortly afterward, Friday came to believe that decades of spraying a pesticide called paraquat at his peach orchard in southwestern Michigan may be the culprit.

...continue reading "The Link Between Parkinson’s Disease and the Pesticide Paraquat"

Published on Leave a comment on High Fat Cheese and Lower Risk of Dementia

Great news for cheese lovers! A recent study found regularly eating full-fat (high-fat) cheese and cream was associated with a lower risk of developing dementia. Some examples of full-fat cheese include cheddar, Swiss, Parmesan, Brie, Gouda, Provolone, Colby, Havarti, Mozzarella (full-fat), and cream cheese.

This was a long-running study (27,670 persons for 25 years) conducted in Sweden. High-fat cream and cheese consumption was inversely associated with dementia, Alzheimer's disease, and vascular dementia. Eating more than 50 grams (about 1/3 cup or 2 slices) of full-fat cheese per day was associated with a 13% to 17% lower risk of Alzheimer's, and more than 20 grams (about 1 1/2 tablespoons) of full-fat cream was linked to a 16% lower risk of dementia overall.

However, consumption of low-fat cheese, low-fat cream, milk (low or high fat), and butter showed no association with dementia.

From Science Daily: Study links full-fat cheese to lower dementia risk

...continue reading "High Fat Cheese and Lower Risk of Dementia"

Published on Leave a comment on Pesticide Exposure Greater In Conventional Farmers Than Organic Farmers

It turns out that wearing silicone wristbands is a great way to measure a person's exposure to pesticides that are inhaled or absorbed in the skin - whether you are  farmer, living near pesticide treated farm fields, a pet owner, or a member of the general population (consumer). Another source of pesticides is food and water, but the silicone wristbands don't measure that.

A recent European study, using the silicone wristbands, found that conventional (non-organic) farmers are exposed to the greatest number and concentration of pesticides, followed by organic farmers and farm neighbors, and the fewest in ordinary consumers (the general population). The wristbands revealed that pesticide use, whether as a farmer or in the home, and having pets predicted greater pesticide exposure.

The researchers looked for the presence of 193 pesticides and found 172 of them. People are typically exposed to mixtures of pesticides. Keep in mind that many pesticides banned in the European Union are not banned in the US, and are routinely used in the US.

Pesticide use, whether as a conventional farmer or in the home, and having pets predicted a greater pesticide exposure. Organic farmers had  lower levels of pesticides, and were exposed to fewer pesticides than conventional (non-organic) farmers. This is because organic farmers are not allowed to use the many pesticides that are routinely used by conventional (non-organic) farmers.

A nice summary of the research from Beyond Pesticides: Lower Pesticide Exposure Documented For Organic Farmers, Elevated For Others

Published in Environment International, a study utilizing silicone wristbands provides a snapshot of chemical exposure in over 600 participants across 10 European countries. Using the wristbands as passive and noninvasive samplers, the researchers find that organic farmers’ wristbands contain lower pesticide levels than other groups, offering insight into the benefits of organic and disproportionate risks to farmers using chemical-intensive methods. The results further reveal prevalent environmental pesticide mixtures, in addition to highlighting exposure to current-use pesticides (CUPs) and legacy (banned) pesticides that occurs through multiple exposure routes to workers, residents, and consumers. ...continue reading "Pesticide Exposure Greater In Conventional Farmers Than Organic Farmers"

Published on Leave a comment on Flame Retardant Levels In the Body Go Down When Old Sofas Are Replaced
Upholstered sofa Credit: Wikimedia Commons

Worried about being exposed for years to sofas filled with flame retardants? The dust from the foam in these sofas release flame retardants into the air, which then get into people's bodies. Flame retardants are linked to all sorts of health problems (cancer risk, hormone disruption, and neurodevelopmental effects). But finally, there is some good news.

A recent study found that just one year after getting rid of old flame retardant filled sofas and chairs (and replacing them with flame retardant-free furniture) resulted in a huge decline in flame retardant polybrominated diphenyl ethers (PBDEs) in the body. The levels of PBDEs declined in half in 1.4 years.

The use of use of organophosphate flame retardants (OPFRs) in foam products (e.g., the foam in upholstered furniture) is also declining in upholstered furniture, but the levels in the study participants didn't decline as much. This is perhaps because OPFRs are still used today in many other products (e.g., as a plasticizer, a coating for electronic devices, in car furnishings).

Bottom line: When buying new sofas and upholstered chairs, look for flame-retardant free furniture. A label commonly on the bottom of the furniture will tell you if they contain flame retardant chemicals or not. [NOTE: Upholstered furniture made between 1970 and 2014 probably contains flame retardants.] Also, wash hands before eating. Vacuum with a HEPA filter.

From Medical Xpress: Swapping old sofas and chairs reduces body levels of harmful flame retardants

New research led by the California Department of Public Health and partners has found that replacing foam-containing furniture made before 2014 would cut in half levels of certain harmful flame retardants in people's bodies in just over a year.

Published in Environmental Pollution, the study is the first to show measurable health benefits from California's 2014 furniture flammability standard update, which made it possible for manufacturers to comply without adding chemical flame retardants. ...continue reading "Flame Retardant Levels In the Body Go Down When Old Sofas Are Replaced"

Published on Leave a comment on Pesticides and Breast Cancer
Normal (left) vs cancerous breast (right), mammography image
Credit: National Cancer Institute

Many studies link pesticide exposure to the development of various cancers, including breast cancer. We tend to think of pesticide exposure as occurring when there is direct contact with the pesticide - for example during application, or when walking on lawns or areas with freshly applied pesticides. Yet... there are other routes that have been neglected in studies, such as washing pesticide contaminated clothes. 

At a recent webinar (42nd National Forum Series - The Pesticide Threat to Environmental Health), Carolina Panis, PhD, (Ass. Professor of Medicine at Western Paraná State University in Brazil, and Visiting Researcher at Harvard University and the University of Arizona) spoke about pesticide exposure in women and breast cancer.  She discussed her recent research showing that women occupationally exposed to pesticides (e.g., as farm workers) and diagnosed with breast cancer seem to have more aggressive disease, also at younger ages, than unexposed women. An increased mortality rate went along with this.

She also discussed an interesting finding regarding women living in farm areas (with heavy pesticide use) in Brazil. Not only is occupational exposure to pesticides linked to breast cancer, but additionally - women having chronic (daily) exposure are also exposed to pesticide residues when washing clothing used by someone who had applied pesticides. Laundry exposure! Women absorb pesticide residues (e.g., glyphosate, atrazine) from the pesticide contaminated clothing, which increases the amount of pesticides in their bodies and this is also linked to breast cancer.

The women she looked at lived in farming areas, and additionally many had their residences frequently sprayed for insects. Ultimately, women exposed to high levels of pesticides tend to develop metastatic untreatable breast cancer, and at a younger age (unlike other areas where breast cancer is highly treatable). She pointed out that pesticides also have a negative effect on the immune system.

From the article by C. Pannis and B. Lemos: Pesticide Exposure and Increased Breast Cancer Risk In Women Population Studies

Women in rural regions are at risk for exposure to pesticides by equipment decontamination, unprotected clothes washing, pesticide drift, chemical spraying in the field, and other routes of exposure in the household. Pesticides can act on mammary gland cells in direct and indirect ways, augmenting the risk for breast cancer development. ...continue reading "Pesticides and Breast Cancer"