home
RSS
Common chemicals challenge sperm
Endocrine disruptors can can impact sperm's motility, or swimming behavior.
May 12th, 2014
01:43 PM ET

Common chemicals challenge sperm

Chemicals known as endocrine disruptors, commonly found in our food and products such as makeup, sunscreen and toothpaste, have been shown to cause fertility problems. Now scientists have a better understanding of why.

Researchers found endocrine disruptors can interfere with human sperm's ability to move, navigate and/or penetrate an egg. Their study results were published Monday in EMBO reports.

Wait, what's an endocrine disruptor?

Endocrine disruptors are chemicals that interfere with your endocrine system - the system in your body that regulates hormones. These hormones control everything from your metabolism to your sleep cycle to your reproductive system, so messing with them can cause serious issues.

Scientists have a long list of potential endocrine disruptors, including bisphenol-A (BPA), phthalates, dioxin, mercury and perfluorinated chemicals (PFCs). They can be natural or man-made and are virtually "omnipresent," the study authors write, in our food and in common household and personal care products.

This isn't the first time scientists have linked these chemicals with fertility issues in humans.  For example, in 2010, a study of Chinese factory workers found exposure to BPA can reduce sperm counts. More recent studies have shown BPA and chemicals called phthalates can hinder a couple's ability to conceive and carry a healthy baby to full term.

The study

Scientists in Germany and Denmark tested 96 endocrine disrupting chemicals on human sperm - both individually and in various combinations.  Around one-third of the chemicals had a negative effect.

The researchers found these endocrine disruptors increased the amount of calcium found in sperm cells - although BPA was found to have no effect. Calcium ions control many of the essential functions of sperm, study author Dr. Timo Strunker explains, including the flagellum - the tail that propels sperm forward. So changing the calcium level in a sperm cell can impact its motility, or swimming ability.

The researchers also found that some endocrine disruptors make sperm less sensitive to two hormones, progesterone and prostaglandins, that help a sperm cell navigate toward a woman's egg.

"Compare it with your GPS receiving abnormal signals," study author Dr. Niels E. Skakkebaek told CNN in an e-mail. "This may result in a wrong destination - read: the sperm may not reach the egg and fertilization may not occur."

One other factor may prevent conception: The study authors concluded some endocrine disruptors can trigger the release of enzymes designed to help sperm break the protective coating on an egg. While this is a good thing if it happens near the egg, the chemicals often cause a premature reaction, wasting the enzymes, Strunker says.

The takeaway

Avoiding endocrine disruptors altogether could prove difficult, as "we become exposed without knowing it from food, clothes, cosmetics, air, water, dust..." said Skakkebaek. "In my opinion, the take-home message to readers is to elect politicians who will work for a cleaner environment in a broad sense."

Many countries around the world are taking a look at these chemicals and evaluating their safety. For the most recent news, check out the National Institute of Environmental Health Science's website.


soundoff (604 Responses)
  1. Social Media Marketing Firm

    It’s difficult to find educated people for this subject, however, you sound like you know what you’re talking about! Thanks

    http://www.ie-university.net/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 08:22 | Report abuse | Reply
  2. Used Forklift Parts California

    http://yamato4u.cside.com/ys4/rank.cgi?mode=link&id=1809&url=https://forkliftswildwestlifttrucks.com/all-terrain-forklift-repair-orange-county-californa

    May 25, 2021 at 08:52 | Report abuse | Reply
  3. Used Forklift Extensions California

    http://www.cssdrive.com/?URL=forkliftswildwestlifttrucks.com/cypress-forklifts

    May 25, 2021 at 09:04 | Report abuse | Reply
  4. Local Marketing Consultant

    https://www.wxnnetwork.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 09:15 | Report abuse | Reply
  5. Internet Marketing Services Near Me

    http://www.dli.accurategraphics.net/__media__/js/netsoltrademark.php?d=https://affordableranking.com

    May 25, 2021 at 10:31 | Report abuse | Reply
  6. Internet Marketing Consultants

    The very next time I read a blog, Hopefully it does not fail me just as much as this particular one. I mean, Yes, it was my choice to read through, however I genuinely thought you would have something useful to talk about. All I hear is a bunch of complaining about something you could possibly fix if you were not too busy looking for attention.

    https://www.cgi1.bellacoola.com/adios.cgi/630?http://www.affordableranking.com

    May 25, 2021 at 13:42 | Report abuse | Reply
  7. Digital Marketing Near Me

    I blog frequently and I truly appreciate your information. This great article has really peaked my interest. I will book mark your blog and keep checking for new information about once per week. I opted in for your RSS feed too.

    https://donaldmac.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 14:17 | Report abuse | Reply
  8. Social Media Marketing Consultants

    http://www.pauker.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 15:37 | Report abuse | Reply
  9. Social Media Marketing Agency

    http://www.bjornjakt.blijagare.nu/?wptouch_switch=desktop&redirect=http://affordableranking.com

    May 25, 2021 at 16:19 | Report abuse | Reply
  10. Social Media Marketing Firms

    https://www.stenaline.co.uk/affiliate_redirect.aspx?affiliate=tradedoubler&tduid=177548f583af6747db6e7f60b75df204&url=http3A2F2Faffordableranking.com

    May 25, 2021 at 19:57 | Report abuse | Reply
  11. trailer body repair

    &lang=en

    May 25, 2021 at 23:09 | Report abuse | Reply
  12. rv appliance repair near me

    /

    May 26, 2021 at 00:25 | Report abuse | Reply
  13. RV Entertainment System California

    /

    May 26, 2021 at 01:02 | Report abuse | Reply
  14. rv restoration parts

    https://cloudsso.hikvision.com/logout?service=https://photosbyjfo.com/2018/07/09/english-is-a-weird-language/

    May 26, 2021 at 06:10 | Report abuse | Reply
  15. orange county rv

    An impressive share! I've just forwarded this onto a friend who was conducting a little research on this. And he in fact ordered me breakfast because I found it for him... lol. So allow me to reword this.... Thank YOU for the meal!! But yeah, thanks for spending some time to discuss this topic here on your web site.

    /

    May 26, 2021 at 09:35 | Report abuse | Reply
  16. Dodge Sprinter 3500 2006 Window Repair

    https://moshtix.com.au/v2/ForceDesktopView?callingUrl=https://fleetvehiclerepairshop.com/high-top-van-repair-shop-near-me

    May 26, 2021 at 12:31 | Report abuse | Reply
  17. RV Flooring Riverside

    It’s hard to find educated people for this subject, however, you seem like you know what you’re talking about! Thanks

    http://2ch-ranking.net/redirect.php?url=https://ocrvcenter.info/rv-service-near-me

    May 26, 2021 at 14:29 | Report abuse | Reply
  18. Mercedes Sprinter Start Error Fault Repair

    http://www.aaronsw.com/2002/display.cgi?t=<a+href=https://commercialvanrepairshop.com/van-collision-repair-shop-near-me

    May 26, 2021 at 19:43 | Report abuse | Reply
  19. rv air conditioner service near me

    http://digital.fijitimes.com/api/gateway.aspx?f=https://ocrv.guru/rv-repair-shop-lakewood-california

    May 26, 2021 at 23:02 | Report abuse | Reply
  20. Alina Mallas

    An outstanding share! I have just forwarded this onto a friend who has been doing a little research on this. And he actually ordered me breakfast due to the fact that I stumbled upon it for him... lol. So allow me to reword this.... Thank YOU for the meal!! But yeah, thanks for spending some time to talk about this topic here on your internet site.

    http://www.fireprotection.org.nz/redirect.aspx?destination=https://www.bonus-books.com

    May 27, 2021 at 00:01 | Report abuse | Reply
  21. RV Camera California

    This is the perfect website for everyone who would like to understand this topic. You know a whole lot its almost tough to argue with you (not that I actually will need to…HaHa). You certainly put a fresh spin on a topic which has been discussed for decades. Great stuff, just excellent!

    http://www.interempresas.net/estadisticas/r.asp?idsector=129&e=221083&c=195&d=https://ocrvcenter.biz/tractor-truck-collision-repair-paint-shop-near-me-orange-county

    May 27, 2021 at 03:35 | Report abuse | Reply
  22. RV Storage California

    I must thank you for the efforts you have put in writing this blog. I'm hoping to see the same high-grade blog posts from you in the future as well. In fact, your creative writing abilities has encouraged me to get my own, personal website now 😉

    holostyak-stb-2021

    May 27, 2021 at 06:17 | Report abuse | Reply
  23. RV Awning Riverside

    Pretty! This was an incredibly wonderful post. Thanks for providing these details.

    https://press.husqvarna-motorcycles.com/Mailing_Redirect.aspx?mailingid=37014&email=tomwebb@me.com&checkid=3ce553ad-a4c8-4cff-8157-9d296087b89f&redirect=https://ocrv.info/semi-truck-collision-repair-paint-shop-near-me-orange-county

    May 27, 2021 at 12:24 | Report abuse | Reply
  24. RV Fabrication Los Angeles

    That is a very good tip especially to those fresh to the blogosphere. Brief but very precise information… Thank you for sharing this one. A must read post!

    http://webourgeon.com/__media__/js/netsoltrademark.php?d=ocrv.me/class-8-truck-collision-repair-shop-near-me

    May 27, 2021 at 14:07 | Report abuse | Reply
  25. RV Remodel Los Angeles

    Your style is unique in comparison to other people I have read stuff from. Thank you for posting when you've got the opportunity, Guess I'll just bookmark this site.

    http://www.canada.com/scripts/go.aspx?g=vancouversun&n=subscribe_link_relatedlinks&u=https://ocrvandtrucks.com/emergency-truck-collision-repair-shop-near-me

    May 27, 2021 at 14:56 | Report abuse | Reply
  26. Forklift Cylinders Los Angeles

    Very good info. Lucky me I found your website by chance (stumbleupon). I have book-marked it for later!

    https://ad.sxp.smartclip.net/optout?url=http://forkliftswildwestlifttrucks.com/used-forklifts-for-sale-orange-county-california

    May 27, 2021 at 15:17 | Report abuse | Reply
  27. Social Media Marketing Company

    You are so interesting! I don't think I've truly read through anything like this before. So good to find another person with a few genuine thoughts on this subject matter. Really.. many thanks for starting this up. This site is something that is required on the internet, someone with a bit of originality!

    https://www.westernalliancebancorporation.com/WALSpeedBump_All_Others?target=https://internetmarketingnevada.com/

    May 27, 2021 at 16:46 | Report abuse | Reply
  28. motorhome service near me

    Everything is very open with a precise explanation of the challenges. It was really informative. Your website is very helpful. Thank you for sharing!

    https://sc.hkex.com.hk/gb/ocrvluxurycoaches.com/tank-truck-collision-repair-shop-near-me

    May 27, 2021 at 17:17 | Report abuse | Reply
  29. Used Forklift Repair Shop California

    https://www.banan.cz/goto.php?url=https://forkliftswildwestlifttrucks.com/forklift-maintenance-orange-county-california

    May 27, 2021 at 18:43 | Report abuse | Reply
  30. RV Upgrades Orange County

    https://router.usconcealedcarry.com/auth/invalidate?redirectTo=https://ocrvcenter.biz/box-truck-collision-repair-paint-shop-near-me-orange-county

    May 27, 2021 at 19:06 | Report abuse | Reply
  31. RV Roof Riverside

    Right here is the perfect website for everyone who wants to understand this topic. You realize a whole lot its almost hard to argue with you (not that I actually will need to…HaHa). You definitely put a brand new spin on a topic that's been discussed for decades. Great stuff, just wonderful!

    http://ad.yp.com.hk/adserver/api/click.asp?b=763&r=2477&u=https://ocrvmotorcoaches.com/motorhome-service-near-me

    May 27, 2021 at 19:59 | Report abuse | Reply
  32. New Forklift For Sale California

    I blog often and I really thank you for your information. This great article has truly peaked my interest. I will bookmark your site and keep checking for new details about once per week. I subscribed to your RSS feed as well.

    http://find.cambridgesoft.com/help/cs.html?url=https://forkliftswildwestlifttrucks.com/narrow-aisle-forklift-repair-orange-county-california/

    May 27, 2021 at 20:14 | Report abuse | Reply
  33. Tiera Alvernaz

    http://howard.edu/asp/linkcounter/resourcesondemand.asp?url=http://bonus-books.com/rv-tires-near-me

    May 27, 2021 at 22:53 | Report abuse | Reply
  34. RV Blinds Orange County

    /

    May 28, 2021 at 02:42 | Report abuse | Reply
  35. Dick Constante

    Have you ever heard of second life (sl for short). It is basically a game where you can do anything you want. SL is literally my second life (pun intended lol). If you would like to see more you can see these second life articles and blogs

    http://middleschoolmatters.com/?pu003d2564&paged=51

    May 28, 2021 at 04:50 | Report abuse | Reply
  36. Social Media Marketing Market

    Hello there! This article couldn’t be written much better! Looking at this post reminds me of my previous roommate! He constantly kept talking about this. I most certainly will forward this post to him. Fairly certain he'll have a great read. Thanks for sharing!

    http://web.sjps.ptc.edu.tw/sjpsweb/online_tool/dyna/webs/gotourl.php?url=https://cdaseo.com

    May 28, 2021 at 08:27 | Report abuse | Reply
  37. Video Marketing Services

    http://kyoto-osaka.com/search/rank.cgi?mode=link&id=9143&url=http://cdaseo.com

    May 28, 2021 at 09:32 | Report abuse | Reply
  38. repair rv slide out

    https://mobile.vhda.com/director.aspx?target=https://soulcentre.org/blog/life-coaching-how-does-it-help-me/

    May 28, 2021 at 10:53 | Report abuse | Reply
  39. RV Steps Riverside

    Good day! I could have sworn I’ve been to your blog before but after going through some of the articles I realized it’s new to me. Anyways, I’m certainly delighted I stumbled upon it and I’ll be bookmarking it and checking back often!

    /

    May 28, 2021 at 14:13 | Report abuse | Reply
  40. RV Camera Near Me

    http://www.netmile.co.jp/click/access?mcpId=defaultCoin&lk=http://volareturismo.com.br/?p=1853

    May 28, 2021 at 16:27 | Report abuse | Reply
  41. RV Washing California

    /

    May 28, 2021 at 23:17 | Report abuse | Reply
  42. RV Dent Repair Riverside

    /

    May 29, 2021 at 01:53 | Report abuse | Reply
  43. Conrad Luger

    Have you ever heard of second life (sl for short). It is essentially a video game where you can do anything you want. sl is literally my second life (pun intended lol). If you would like to see more you can see these second life websites and blogs

    http://myvedana.blogspot.com/2010/06/researching-virtual-worlds.html?m=0

    May 29, 2021 at 05:21 | Report abuse | Reply
  44. Van Alignment Shop Near Me

    It’s hard to find knowledgeable people on this subject, however, you sound like you know what you’re talking about! Thanks

    http://www.howard.edu/asp/linkcounter/resourcesondemand.asp?url=http://www.commercialrepairshop.com/sprinter-van-mechanic-shop-near-me

    May 29, 2021 at 07:06 | Report abuse | Reply
  45. Internet Marketing Near Me

    http://10lowkey.us/UCH/link.php?url=https://internetmarketingmontana.com

    May 29, 2021 at 19:13 | Report abuse | Reply
  46. Video Marketing Agencies

    Everything is very open with a very clear clarification of the issues. It was truly informative. Your website is extremely helpful. Thank you for sharing!

    http://yellowpages.hillsdale.net/__media__/js/netsoltrademark.php?d=lifebusinessfitness.com

    May 30, 2021 at 01:38 | Report abuse | Reply
  47. Esther Kishi

    Have you ever heard of second life (sl for short). It is essentially a video game where you can do anything you want. sl is literally my second life (pun intended lol). If you want to see more you can see these sl authors and blogs

    http://razakam.blogspot.com/2009/05/too-many-thoughts.html

    May 30, 2021 at 06:11 | Report abuse | Reply
  48. Mack Truck Repair Repair Shop

    https://www.yourareacode.com/redirect.php?destination=http://fleetautorepairshop.com/mack-truck-repair-repair-shop-near-me

    May 30, 2021 at 22:57 | Report abuse | Reply
  49. RV Repair Near Here

    I’m amazed, I must say. Seldom do I come across a blog that’s both educative and interesting, and let me tell you, you've hit the nail on the head. The issue is something not enough folks are speaking intelligently about. Now i'm very happy I came across this during my search for something concerning this.

    https://router.usconcealedcarry.com/auth/invalidate?redirectTo=https://ocrv.art/

    May 30, 2021 at 23:37 | Report abuse | Reply
  50. Passenger Van Repair

    http://kreepost.com/go/?https://commercialrepairshop.com/chevrolet-luxury-van-repair-shop-near-me/

    May 31, 2021 at 00:45 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13

Post a comment


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.