After Bone Marrow Transplant, Man's Semen Contains Only Donor's DNA
Chris Long is an IT worker in the Washoe County Sheriff's Department in Reno, Nevada. But all the DNA in his semen belongs to a German man he's never met.
That's because Long received a bone marrow transplant from the European stranger four years ago [...] Following the procedure, the healthy blood-forming cells from the donor replaced Long's unhealthy cells, allowing his body to resume normal blood production. It makes sense, then, for Long's blood to contain the DNA of his donor.
[...] Sometimes, they find both Long's DNA and his donor's [...] when they test swabs from his lip, cheek, and tongue. Samples of his chest and head hair, meanwhile, show only Long's DNA.
But perhaps most surprisingly, four years after the procedure, samples of Long's semen show only his donor's DNA.
[...] Three bone marrow transplant experts consulted by the NYT all agreed that it would be impossible for the procedure to result in a recipient producing sperm containing their donor's DNA.
Mehrdad Abedi, the doctor who treated Long at the University of California, Davis, meanwhile, told the newspaper that his patient's surprising semen is likely due to the fact that Long had a vasectomy after his second child was born.Forensic scientists already have to grapple with the issue of DNA from innocent people occasionally showing up at crime scenes due to bone marrow transplants. But at least in those cases, they have the "right" DNA to trace, too.
If someone in Long's situation committed a sex crime and investigators collected semen samples, though, could their blood marrow donor be charged with the crime given the lack of any other DNA at the scene?
Hopefully investigators understand that sperm and semen are different things. Blood marrow donors should have adequate records of their donor status.
(Score: 0) by Anonymous Coward on Wednesday December 11 2019, @05:23PM (5 children)
So, basically all of his spermen was replaced by the donors? There must have been contamination of the transplant fluid.
(Score: 2) by DannyB on Wednesday December 11 2019, @06:13PM (4 children)
You must have not checked the SPOILER.
The server will be down for replacement of vacuum tubes, belts, worn parts and lubrication of gears and bearings.
(Score: 0) by Anonymous Coward on Wednesday December 11 2019, @06:30PM (3 children)
I read it, it says he had a vasectomy. That is like bombing all the bridges to enemy territory in order to deny access to your own spermen troops, meanwhile the transplanted spermen are like paratroops airdropping in through the bloodstream.
(Score: 2) by DannyB on Wednesday December 11 2019, @06:46PM (2 children)
From TFA . . .
The reason his semen (not sperm) has only donor DNA is because there are no sperm in the semen. If there were sperm in the semen, the sperm would have his own DNA while the semen would have the donor's DNA. Thus two sets of DNA would be detected in the semen.
The server will be down for replacement of vacuum tubes, belts, worn parts and lubrication of gears and bearings.
(Score: 0) by Anonymous Coward on Wednesday December 11 2019, @07:55PM
So they didn't check for donor spermen?
(Score: 0) by Anonymous Coward on Wednesday December 11 2019, @10:25PM
Geez, that explanation was very good. It would have really helped if that was in the summary and not hidden in a SPOILER tag. What's up with that?
(Score: 2, Funny) by nitehawk214 on Wednesday December 11 2019, @05:34PM (1 child)
Uh, he said "bone". Heh heh.
"Don't you ever miss the days when you used to be nostalgic?" -Loiosh
(Score: 1, Touché) by Anonymous Coward on Wednesday December 11 2019, @05:52PM
"Chris Long Bone"
(Score: 2) by Pslytely Psycho on Wednesday December 11 2019, @06:06PM
Oh they will, and it will directly correlate to how good an attorney you can afford.
Alex Jones lawyer inspires new TV series: CSI Moron Division.
(Score: 2) by jasassin on Wednesday December 11 2019, @06:35PM (4 children)
You are NOT the father!
On a more serious note, this guy might have the golden ticket for child support claims. He can go hog wild!
jasassin@gmail.com GPG Key ID: 0xE6462C68A9A3DB5A
(Score: 3, Funny) by DannyB on Wednesday December 11 2019, @06:48PM
Luke, I am your father.
The server will be down for replacement of vacuum tubes, belts, worn parts and lubrication of gears and bearings.
(Score: 2) by Immerman on Wednesday December 11 2019, @07:52PM (2 children)
Yes. Vasectomies do that.
(Score: 2) by jasassin on Wednesday December 11 2019, @08:16PM (1 child)
I heard they don't always take.
jasassin@gmail.com GPG Key ID: 0xE6462C68A9A3DB5A
(Score: 2, Informative) by Anonymous Coward on Wednesday December 11 2019, @08:28PM
In which case the paternity test would show it was his child. because the sperm would be his, carried by the doner's semen
(Score: 2) by Immerman on Wednesday December 11 2019, @06:44PM (1 child)
>Hopefully investigators understand that sperm and semen are different things.
Since sperm is a component of semen, and sperm contains DNA, I'm not sure what the point of this comment is.
Also, why the heck is the arguably most important detail from the click-bait headline hidden behind a spoiler? Long has had a vasectomy, so unlike most men his semen no longer contains sperm.
(Score: 2) by DannyB on Wednesday December 11 2019, @06:48PM
I thought it amusing to put the crucial detail, which solves the puzzle, in a spoiler. The editors didn't change it.
The server will be down for replacement of vacuum tubes, belts, worn parts and lubrication of gears and bearings.
(Score: 1, Offtopic) by Mykl on Wednesday December 11 2019, @08:21PM (2 children)
The art world is one big scam. I wouldn't be so mad about it if it weren't for the tax breaks that the rich manage to get out of it. This video is instructional [youtube.com]
(Score: 2) by Mykl on Wednesday December 11 2019, @08:26PM (1 child)
Sorry, posted to the wrong topic! Please downmod appropriately
(Score: 3, Funny) by mhajicek on Thursday December 12 2019, @07:31AM
We'll, they are talking about the guys banana.
The spacelike surfaces of time foliations can have a cusp at the surface of discontinuity. - P. Hajicek
(Score: 2) by Rupert Pupnick on Thursday December 12 2019, @12:17AM
“Mehrdad Abedi, the doctor who treated Long at the University of California, Davis, meanwhile, told the newspaper that his patient’s surprising semen is likely due to the fact that Long had a vasectomy after his second child was born.”
What does the timing of the vasectomy relative to the birth of his second child have to do with anything? Isn’t it the timing of vasectomy relative to the transplant that would be of interest?
(Score: 2) by jmichaelhudsondotnet on Thursday December 12 2019, @02:48PM
Men having other men's sperm, moon gel, undersea coral talking with the moon, navy claims doesnt know wtf ufos are and nobody believes them, trees with socialists medicine....
2019 will be one for the books.
Oh, hot off the presses, epstein lives, or come get your cow vr!
https://archive.is/QBVQJ [archive.is]
https://archive.is/kJKap [archive.is]
https://archive.is/OPkTH [archive.is]
https://archive.is/x5dMp [archive.is]
https://archive.is/5LJ82 [archive.is]
https://archive.is/FMvgZ [archive.is]
https://archive.is/HTALt [archive.is]
And somehow, my awesome cow vr meme does not show up in the queue at reddit proving the zionist censorship even in investigations of child abuse and human trafficking:
https://archive.is/Wuvnk [archive.is]
Asking reddit mod to define zionism, I got no response from the person who censored me, but another mod confirmed that even seeming kindof antisemitic in any way is immediate censorship, which should not surprise anyone reading the news about every epstein connection but israel.