Talk:Human chimera

Rarity and identification of human chimera

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

See Talk:Human–animal hybrid#Scope of articles — Omegatron (talk) 18:24, 20 January 2024 (UTC)