Chemicals in detergents, shampoos, hand wipes linked to birth defects

A study, conducted on mice and rats, found that chemicals commonly used in disinfectants, food preservatives, shampoos and other personal care products can lead to birth defects of the brain, spine or spinal cord.

The parent’s exposure to chemicals often used as disinfectants and preservatives in household and personal products such as detergents, shampoos and conditioners may be associated with birth defects in children, researchers have warned.

The study, conducted on both mice and rats, showed that the chemicals – known as quaternary ammonium compounds or “quats” – can lead to birth defects of the brain, spine or spinal cord. “These chemicals are regularly used in the home, hospitals, public spaces and swimming pools,” said Terry Hrubec, associate professor at the Edward Via College of Osteopathic Medicine (VCOM) in Virginia, US.

“Birth defects were seen when both males and females were exposed, as well as when only one parent was exposed,” Hrubec added. For the study, detailed in the journal Birth Defects Research, the team investigated the effect of two commonly used quats – alkyl dimethyl benzyl ammonium chloride and didecyl dimethyl ammonium chloride.

These are often listed on ingredient lists as ADBAC and DDAC respectively, and are valued for their antimicrobial and antistatic properties, as well as their ability to lower surface tension.

In addition, mice and rats did not even need to be dosed with the chemicals to see the effect, but simply using quat-based cleaners in the same room as the mice was enough to cause birth defects. “We also observed increased birth defects in rodents for two generations after stopping exposure,” Hrubec noted.

Although the study was conducted on mice and rats, these chemicals may be toxic to humans as well, the researchers said.

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