PubHawk
Cell July 2005 PMID 16009139

Retrospective birth dating of cells in humans.

Kirsty L Spalding, Ratan D Bhardwaj, Bruce A Buchholz, Henrik Druid, Jonas Frisén

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Mentions

16
Peak: 6 in May 2021
across 5 sources since Jan 2021

Extended reach

149,846
potential audience

Total likes

84

Video views

243

Mentions per month

Jan 2021 – Dec 2025

Where it's discussed

  • X / Twitter6 posts
  • Reddit6 posts
  • YouTube2 videos
  • Instagram1 posts
  • News1 articles

AI synopsis

What people are saying

Discussions reflect high engagement with the article, utilizing technical terms like 'bomb pulse' and examples such as studying cell turnover in humans and the longevity of Greenland sharks; tone varies from curiosity to admiration, emphasizing the transformative potential of this cell dating method in understanding human biology.

AgreementModerate agreement

Most discussions express support or curiosity about the methods and findings, indicating general agreement with the study's significance.

InterestHigh interest

Several posts highlight fascination with the use of atmospheric isotope data and its implications, reflecting high interest.

EngagementModerate engagement

Participants reference specific concepts like the 'bomb pulse' and the longevity of sharks, showing they are engaging with technical details and implications.

ImpactHigh impact

Comments suggest the research could significantly influence tissue and cell studies, underlining a high perceived impact.

Abstract in brief

  • The study uses the levels of the isotope 14C, which spiked in the atmosphere due to nuclear testing and then decreased, to determine when human cells were formed by analyzing the DNA.
  • This method revealed that non-neuronal cells in the adult human brain are regularly replaced, while neurons in the occipital cortex are as old as the individual, indicating that new neurons are not generated there after birth.
  • Retrospective birth dating with 14C provides a valuable tool for studying cell turnover in humans, helping us understand both normal and disease-related tissue changes.
Read the full abstract

Top posts

Most liked on X and Bluesky
Rock Mada
@RackMada · X

2/2 שנפטרו, בכדי לנסות לזהות תוך כמה זמן מתחלפות לנו רקמות הגוף. ע״י מעקב אחר פחמן 14 בדנא שלנו,המחקר מצא שתאי המוח שלנו כמעט ואינם מתחלקים לאחר הבגרות, ואילו תאי הדם מתחלקים כל הזמן. שיטה מרתקת שניתן להשתמש בה בכדי להעריך קצבי חלוקה של תאים בגופנו. למאמר: https://t.co/lOU9mVRf6g https://t.co/YWGgZHrMU7

Jan 2, 2021 · 57 likes · 36,615 followers View post →
Kresten Lindorff-Larsen
@LindorffLarsen · X

@wellingmax Interesting. The so-called “bomb pulse” of increased 14C in the atmosphere due nuclear bombs tests has for example been used to date cells in humans (https://t.co/056okkEJLz) and reveal the extraordinary longevity of Greenland sharks (https://t.co/dGASUAKh4s)

Sep 2, 2022 · 12 likes · 14,697 followers View post →
Josch. feat. Frank.
@chefofmembers · X

@NarfGb @rosenbusch_ @SHomburg @punktpreradovic @docbrandenburg Retrospective Birth Dating of Cells in Humans https://t.co/PRkRNqqq4K

Mar 4, 2024 · 1 like · 20,835 followers View post →
Oswaldo Zapata-Mazo
@OswaldoZapataM1 · X

@DavidCPuentes @pecasinsoladas Me pusiste a buscar esa belleza, y de paso a darme cuenta de los tremendos descubrimientos que han hecho a propósito del trabajo con células madre y cardiomiocitos.

Jul 10, 2023 · 1 like · 192 followers View post →
♀️Ana -XX
@ana_iamhuman · X

RT @ana_iamhuman: Por supuesto para ver la duración de la sanción hay estudios donde se ha calculado que en humanos que el promedio de la…

Jul 23, 2021 · 1 share · 38,590 followers View post →
♀️Ana -XX
@ana_iamhuman · X

Por supuesto para ver la duración de la sanción hay estudios donde se ha calculado que en humanos que el promedio de la duración de los mionúcleos es de 15.1 años. Y se sabe desde el año 2005 @ContraBorrado https://t.co/b9dMXwpKfI

Jul 22, 2021 · 1 share · 38,590 followers View post →

All mentions

Using Carbon Dating to Determine Human Cell Age

This video explains how atmospheric 14C levels from nuclear testing are used to date the formation of human cells, revealing that non-neuronal cells are regularly replaced while neurons in the occipital cortex remain as…

n800 · Dec 4, 2025 108 views
Josch. feat. Frank.
@chefofmembers · X

@NarfGb @rosenbusch_ @SHomburg @punktpreradovic @docbrandenburg Retrospective Birth Dating of Cells in Humans https://t.co/PRkRNqqq4K

Mar 4, 2024 · 1 like · 20,835 followers View post →
Oswaldo Zapata-Mazo
@OswaldoZapataM1 · X

@DavidCPuentes @pecasinsoladas Me pusiste a buscar esa belleza, y de paso a darme cuenta de los tremendos descubrimientos que han hecho a propósito del trabajo con células madre y cardiomiocitos.

Jul 10, 2023 · 1 like · 192 followers View post →
Kresten Lindorff-Larsen
@LindorffLarsen · X

@wellingmax Interesting. The so-called “bomb pulse” of increased 14C in the atmosphere due nuclear bombs tests has for example been used to date cells in humans (https://t.co/056okkEJLz) and reveal the extraordinary longevity of Greenland sharks (https://t.co/dGASUAKh4s)

Sep 2, 2022 · 12 likes · 14,697 followers View post →
♀️Ana -XX
@ana_iamhuman · X

RT @ana_iamhuman: Por supuesto para ver la duración de la sanción hay estudios donde se ha calculado que en humanos que el promedio de la…

Jul 23, 2021 · 1 share · 38,590 followers View post →
♀️Ana -XX
@ana_iamhuman · X

Por supuesto para ver la duración de la sanción hay estudios donde se ha calculado que en humanos que el promedio de la duración de los mionúcleos es de 15.1 años. Y se sabe desde el año 2005 @ContraBorrado https://t.co/b9dMXwpKfI

Jul 22, 2021 · 1 share · 38,590 followers View post →
Rock Mada
@RackMada · X

2/2 שנפטרו, בכדי לנסות לזהות תוך כמה זמן מתחלפות לנו רקמות הגוף. ע״י מעקב אחר פחמן 14 בדנא שלנו,המחקר מצא שתאי המוח שלנו כמעט ואינם מתחלקים לאחר הבגרות, ואילו תאי הדם מתחלקים כל הזמן. שיטה מרתקת שניתן להשתמש בה בכדי להעריך קצבי חלוקה של תאים בגופנו. למאמר: https://t.co/lOU9mVRf6g https://t.co/YWGgZHrMU7

Jan 2, 2021 · 57 likes · 36,615 followers View post →
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