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Home NEWS Science News Chemistry

Neandertals may have had a lower threshold for pain

Bioengineer by Bioengineer
July 23, 2020
in Chemistry
Reading Time: 2 mins read
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People who inherited a special ion channel from Neandertals experience more pain

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Credit: © Science Photo Library / Daynes, Elisabeth

As several Neandertal genomes of high quality are now available researchers can identify genetic changes that were present in many or all Neandertals, investigate their physiological effects and look into their consequences when they occur in people today. Looking into one gene that carries such changes, Hugo Zeberg, Svante Pääbo and colleagues found that some people, especially from central and south America but also in Europe, have inherited a Neandertal variant of a gene that encodes an ion channel that initiates the sensation of pain.

By using data from a huge population study in the UK, the authors show that people in the UK who carry the Neandertal variant of the ion channel experience more pain. “The biggest factor for how much pain people report is their age. But carrying the Neandertal variant of the ion channel makes you experience more pain similar to if you were eight years older”, says lead author Hugo Zeberg, a researcher at the Max Planck Institute for Evolutionary Anthropology and Karolinska Institutet. “The Neandertal variant of the ion channel carries three amino acid differences to the common, ‘modern’ variant”, explains Zeberg. “While single amino acid substitutions do not affect the function of the ion channel, the full Neandertal variant carrying three amino acid substitutions leads to heightened pain sensitivity in present-day people.”

On a molecular level, the Neandertal ion channel is more easily activated which may explain why people who inherited it have a lowered pain threshold. “Whether Neandertals experienced more pain is difficult to say because pain is also modulated both in the spinal cord and in the brain”, says Pääbo. “But this work shows that their threshold for initiating pain impulses was lower than in most present-day humans.”

###

Contact:

Dr. Hugo Zeberg

Max Planck Institute for Evolutionary Anthropology, Leipzig &

Karolinska Institutet, Sweden

+46 730 6160-69

[email protected]

Prof. Dr. Svante Pääbo

Max Planck Institute for Evolutionary Anthropology, Leipzig

+49 341 3550-500

[email protected]

Media Contact
Sandra Jacob
[email protected]

Related Journal Article

http://dx.doi.org/10.1016/j.cub.2020.06.045

Tags: BiochemistryBioinformaticsBiologyEvolutionGeneticsMedicine/HealthPain
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