Human Eggs Seem to Exhibit Preferences For Particular People's Sperm, Study Shows:
After all that time and effort agonising over whether a potential partner even likes you, then trying to decide if they're the right person to take on the massive endeavour of parenthood with, your eggs can basically turn around and say "yeah, nah".
"The idea that eggs are choosing sperm is really novel in human fertility," said clinical embryologist Daniel Brison from Manchester University in the UK.
[...] Human eggs release compounds called chemoattractants into this fluid, which chemically communicates with sperm. While the exact chemicals are yet to be identified (some researchers suspect progesterone is involved), whatever it is can trigger sperm to change swimming directions.
The researchers exposed sperm to follicular fluid from two females (a partner and a non-partner) and observed where the sperm accumulated.
[...] "Follicular fluid from different females consistently and differentially attracts sperm from specific males," the team wrote in their paper, finding that eggs attracted between 18 to 40 percent more sperm from their preferred males.
[...] The team cautions that some of the experiment's conditions could affect the accuracy of the results. For example, the IVF eggs they used had been through treatments that may have changed some biological processes.
Also, the concentrations of sperm were much higher than natural (20,000 sperm per egg instead of the average of around 250) and they were placed quite close to the egg - which may minimise differences in the effects of chemoattractants.
Journal Reference:
Chemical signals from eggs facilitate cryptic female choice in humans, Proceedings of the Royal Society B (DOI: 10.1098/rspb.2020.0805)
(Score: 1, Touché) by Anonymous Coward on Sunday June 14 2020, @09:05PM (2 children)
Even if you get lucky, their eggs will reject you.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @05:56PM (1 child)
i wouldn't be the least bit surprised to learn women are unconsciously turning this off and on based on the wealth of the sperm donor.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @07:50PM
Doesn't this go against your narrative? Oh right, incels and alt-right switch their viewpoints to match any given scenario.
(Score: 0, Offtopic) by Anonymous Coward on Sunday June 14 2020, @09:19PM (11 children)
What the fuck does that mean?
(Score: 2, Insightful) by Anonymous Coward on Sunday June 14 2020, @09:35PM
Yes means no.
(Score: 2, Informative) by Anonymous Coward on Sunday June 14 2020, @09:39PM (3 children)
It means you should have paid attention in school.
(Score: 1, Informative) by Anonymous Coward on Monday June 15 2020, @12:37AM (2 children)
LOL
getting downmodded for admonishing an ignorant fool
Here, I'll finish the answer since they couldn't bother to ask the person who knows and instead lashed out with anger.
[...] means there was content between the last quote and the current one. That is how you responsibly quote sections when omitting content. It lets the reader know there is context that could be missing. Responsible reporting must be new to you!
(Score: 0, Flamebait) by Anonymous Coward on Monday June 15 2020, @02:51AM (1 child)
Is there any fucking [...] point doing [...] this in a fucking [...] summary?
(Score: 1, Informative) by Anonymous Coward on Monday June 15 2020, @04:13AM
>> Is there any fucking [...] point doing [...] this in a fucking [...] summary?
Maybe if the original thing you wrote was something like this--
> Is there any fucking reason that an idiot would miss the point doing the ellipsis dance like this in a fucking /. (oops, SN) summary?
When I submit a story I always add "..." when I leave out some of a quote from the original source. Don't usually add the braces "[...]" since they look cluttered to me. But, I wouldn't mind if an editor added the braces.
While the parts I leave out may not change my understanding of the source article, others may not agree on my choice--so readers know there is more in the original and can check the link if you like.
Without the ellipsis I could easily skew the summary to mean something different than the original author intended. Since some of the the readers here are sharp enough to check sources, I'd likely be called out in the comments if I did this.
(Score: 0) by Anonymous Coward on Sunday June 14 2020, @10:01PM (1 child)
Morse code? dash dot dot dot dash? Could be... LOL?
(Score: 0) by Anonymous Coward on Monday June 15 2020, @03:07AM
h t t p [colon] [slash] [slash] w w w [dot] slash dot [dot] com [slash] fuck beta
(Score: 1, Insightful) by Anonymous Coward on Monday June 15 2020, @02:46AM (1 child)
It sounds like research meant to establish that a woman's body just shuts the whole thing down when she's rape-raped. Where does the money lead?
(Score: 0) by Anonymous Coward on Tuesday June 16 2020, @02:02AM
That's not what it said at all. This is about attraction at the genetic level.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @04:03AM
Some women have an inbuilt defense against rapist sperm
(Score: 0) by Anonymous Coward on Monday June 15 2020, @09:50PM
I read [...] of the replies to this [...], and it's hard to think with [...] large whooshing sound surrounding [...].
Well done. Well posted!
[...]
(Score: 0) by Anonymous Coward on Sunday June 14 2020, @10:10PM (1 child)
No mention at all of the same with parents of twins being a better match? Shit research.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @07:51PM
Good research doesn't generate clicks.
(Score: 0) by Anonymous Coward on Sunday June 14 2020, @10:26PM (4 children)
Those mechanisms had millions of years to evolve, overriding them, sounds like a bad plan. Please don't pollutes the germline.
(Score: 2) by linkdude64 on Sunday June 14 2020, @11:37PM (3 children)
Too late - modern medicine already exists and saves thousands of lives a day.
(Score: 2) by c0lo on Monday June 15 2020, @02:23AM (2 children)
Sex reassignment age pushed to pre-conception time? (grin)
https://www.youtube.com/watch?v=aoFiw2jMy-0
(Score: 1, Insightful) by Anonymous Coward on Monday June 15 2020, @02:42AM
That would be best. Early treatment gives better outcomes.
(Score: 2) by DannyB on Monday June 15 2020, @04:14PM
As long as they don't limit the reassignment choices to only two genders.
What about the other 89 (minus two) genders?
Is there a chemotherapy treatment for excessively low blood alcohol level?
(Score: 2) by Snotnose on Sunday June 14 2020, @11:17PM (9 children)
I feel so much better now.
I came. I saw. I forgot why I came.
(Score: 2) by inertnet on Sunday June 14 2020, @11:54PM (6 children)
Relax, we all started out as winners. Our parents were winners. Their parents too.
(Score: 0, Offtopic) by Anonymous Coward on Sunday June 14 2020, @11:57PM
A fine theory but one that fails to explain aristrachus.
(Score: 2, Funny) by Anonymous Coward on Monday June 15 2020, @12:11AM (3 children)
If I'm such a winner, why did I only get a participation medal?
(Score: 2, Funny) by Anonymous Coward on Monday June 15 2020, @12:38AM
You won last place!
(Score: 0) by Anonymous Coward on Monday June 15 2020, @12:47AM (1 child)
Some losers get lucky, even when they are treated as winners for their accomplishments they maintain their loser identity.
Sorry pal, I hope you get over that weird complex you've got going on.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @02:56AM
Hey at least I participated asshole! Where MY medal? Oh there it is I'm good.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @04:08AM
The first step for winning the genetic lottery is to win a swimming race.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @03:02AM (1 child)
My boys can swim!
(Score: 0) by Anonymous Coward on Monday June 15 2020, @04:17AM
> My boys can swim!
My gametes can swim!
ftfy
(Score: -1, Troll) by Anonymous Coward on Monday June 15 2020, @04:17AM (1 child)
The latest in Halal certificates to ensure your journey to Paradise is assured.
For a modest fee your wife's eggs will be tested against premium quality Muslim sperm to provide assurance that her eggs are Halal.
If her eggs repell decent Muslim sperm then a certificate cannot be issued.
Of course you will have to wait several years until she begins ovulating to undergo this. Bring her in when menses starts with your payment and marriage certificate. Discount for non-muslim females held by the right hand.
(Score: 0) by Anonymous Coward on Monday June 15 2020, @08:02PM
Sounds more like your target demographic would be the KKK. I bet they'd even work with loan sharks to buy your service.
(Score: 3, Interesting) by maxwell demon on Monday June 15 2020, @02:29PM
They observed that the sperm accumulated at different places. But how does this tell that the egg made the decision? Maybe it was the sperm that liked or disliked those eggs?
The Tao of math: The numbers you can count are not the real numbers.