A recent study by a U.S. scientist showed that bisphenol A, a chemical raw material, showed more harm in animal experiments. Male rats who had been exposed to bisphenol A in childhood had poor spatial navigation ability and were relatively free from adulthood. Rats welcome. Earlier, the European Union, Canada, China and other countries and regions have banned the use of bisphenol A in baby bottles.

Researchers at the University of Missouri-Columbia in the United States believe that hormone-regulated features may be particularly sensitive to endocrine disruptors such as BPA. For this hypothesis, researchers set up validation experiments.

The experimental results show that pregnant females fed with foods rich in bisphenol A, the male offspring looks normal, the level of male hormones in the body is normal, but the spatial navigation ability is poor, and it is difficult to learn to quickly pass through the maze in design experiments. The way. Space navigation ability is very important for male rats to expand territory and courtship in the wild.

In addition, the results showed that male mice that had been exposed to bisphenol A in childhood were relatively unwelcome to adult females, and the success rate of mate selection was about half that of normal male rats. The report said that the researchers said it is not yet clear whether bisphenol A has a similar effect on the human body, but apparently must attract attention. This research result was published in the "Journal of the National Academy of Sciences" published by the United States.

Bisphenol A is a chemical substance that is widely used in the production of plastic products and is widely used in plastic containers and packaging such as baby bottles and beverage bottles. The safety of bisphenol A is controversial, and many scientists believe that it may play a role similar to estrogen in the body and disrupt the metabolic processes in the body.

Bisphenol A has been banned from use in baby bottles in the EU, parts of the United States, China, and Canada. According to the notice of the Chinese Ministry of Health, since June 1st, bisphenol A milk bottles have been banned, and imports and sales have been banned since September 1.