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Beware! Harmful Chemicals In Sunscreen Kills Sperm Cells, Causes Infertility In Men

Daily Health News

Beware! Harmful Chemicals In Sunscreen Kills Sperm Cells, Causes Infertility In Men

sunscreen infertility in men

April 4, 2016 – Beware! Harmful Chemicals In Sunscreen Can Kill Sperm Cells, Causes Infertility In Men – Researchers

UV filtering chemicals used in sunscreens have harmful effect on human sperm cells.

This new information is contained in the results of the Danish study that was presented last Friday at the Endocrine Society’s 98th annual meeting in Boston in the United States (U.S).

“These results are of concern and might explain in part why unexplained infertility is so prevalent,” said the study’s senior investigator, Niels Skakkebaek, a professor at the University of Copenhagen and a researcher at the Copenhagen University Hospital, Rigshospitalet in Denmark.

Although the purpose of the chemical, UV filters is to reduce the amount of the sun’s UV rays getting through the skin by absorbing UV, some UV filters are rapidly absorbed through the skin, Skakkebaek said. UV filter chemicals reportedly have been found in human blood samples and in 95 per cent of urine samples in the United States (U.S), Denmark and other countries. Skakkebaek and his colleagues tested 29 of the 31 UV filters allowed in sunscreens in the U.S. or the European Union (EU) on live, healthy human sperm cells, from fresh semen samples obtained from several healthy donors.

The sperm cells underwent testing in a buffer solution that resembled the conditions in female fallopian tubes. Specifically, the investigators evaluated calcium signalling, which signal inside the cell brought on by changes in the concentration of calcium ions. Movement of calcium ions within sperm cells, through calcium ion channels, plays a major role on sperm cell function, according to Skakkebaek. CatSper is a sperm-specific calcium ion channel that he said is essential for male fertility.

This channel is the main sperm receptor for progesterone, a potent hormone attractable for human sperm cells. Binding of progesterone to CatSper causes a temporary influx, or surge, of calcium ions into the sperm cell, controlling several sperm functions necessary for fertilisation. The researchers found that 13, or 45 per cent, of the 29 UV filters tested induced calcium ion influxes in the sperm cells, thus interfering with normal sperm cell function.

“This effect began at very low doses of the chemicals, below the levels of some UV filters found in people after whole-body application of sunscreens,” Skakkebaek said. Furthermore, nine of the 13 UV filters seem to induce this calcium ion influx by directly activating the CatSper channel, thereby mimicking the effect of progesterone.

This finding suggests that these UV filters are endocrine disruptors, Skakkebaek said. In addition, several of the UV filters affected important sperm functions normally controlled via CatSper, such as sperm motility.

9 Comments

9 Comments

  1. D Hunter

    April 4, 2016 at 5:07 AM

    Well, long story cut short is that, I dont even use any sunscreen. Therefore, I shall remain potent till death.

    My strolling continues….

  2. Maryf

    April 4, 2016 at 5:28 AM

    That means this world has come to an end. Since everything one does or touches is dangerous to the health. Before, people live up to 130/140, now scientist have put fear in everybody because of their I TOO KNOW PROFESSION. I could remember that before, people were drinking from streams, lakes, even rained water, etc. but now, people drink sachet water, bottle water, treated water, etc and people are dying every minute because of all those fake things. For me, I have started living like my great grand fathers by going green, drinking natural water, taking herbal medicines, cooking with fire wood, etc. because I too wants to live long.

  3. Big Aunty Koks

    April 4, 2016 at 6:10 AM

    Perhaps this article should be pasted at beaches and swimming pools to enable the users of sunscreen read it and avid stories that touch.

  4. Metu Nyetu

    April 4, 2016 at 7:14 AM

    It is always adviced to know whatever cream you apply on your skin. Many creams have harmful active ingredients with a long term effect. Some of then could even dispose the skin to cancer. The people who are most prone are women who keep changing creams just to look beautiful.

  5. fifelomo

    April 4, 2016 at 8:28 AM

    Butter no be monkey food, am blessed with a beautiful dark skin. Anyway, thanks for the advice.

  6. Olanrewaju

    April 4, 2016 at 9:46 AM

    Thanks for sharing the information

  7. sola olaniyi

    April 4, 2016 at 10:37 AM

    what an informative piece

  8. Amazon

    April 4, 2016 at 8:37 PM

    Men hope una don hear, just be careful

  9. sharon stone

    April 5, 2016 at 1:24 PM

    for those men that like to breach their skin,these information is for u oooooo.

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