Talk:Human chimera
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Rarity and identification of human chimera[edit]
I am NOT an expert, so do not wish to edit the actual article.
This statement is almost certainly incorrect "Non-artificial chimerism is so rare that there have only been 100 confirmed cases in humans.[citation needed]"
Various levels of human chimera have been found.
1) Human mothers get stem cells from their children
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2633676/
2) Twins exchange cells
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902707/
3) Children gets cells from their mothers
https://www.nature.com/articles/s41467-021-24719-z
4) Children even get cells from their grandmothers.
https://www.thelancet.com/journals/ebiom/article/PIIS2352-3964(21)00537-5/fulltext
The conclusion is that almost every human is a chimera at least at a very low level.
Also this statement is probably not correct. "By simply undergoing a DNA test, which usually consists of either a swift cheek swab or a blood test, the discovery of the once unknown second genome is made, therefore identifying that individual as a chimera."
If the chimeric cells involve the blood or immune system, perhaps. But that's a tiny fraction of your body cells. For example, see what level of testing was needed in this case.
https://embryo.asu.edu/pages/case-lydia-fairchild-and-her-chimerism-2002
Cheek, blood, hair all didn't show any sign of her chimerism. Only a sample from the cervex did. WetEV (talk) 22:32, 5 August 2023 (UTC)
Scope of articles[edit]
See Talk:Human–animal hybrid#Scope of articles — Omegatron (talk) 18:24, 20 January 2024 (UTC)