"Neanderthals may have had a lower threshold for pain" Topic
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| Tango01 | 06 Aug 2020 7:45 p.m. PST |
"As several Neanderthal genomes of high quality are now available researchers can identify genetic changes that were present in many or all Neanderthals, 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 Neanderthal 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 Neanderthal variant of the ion channel experience more pain. "The biggest factor for how much pain people report is their age. But carrying the Neanderthal 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 Neanderthal 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 Neanderthal variant carrying three amino acid substitutions leads to heightened pain sensitivity in present-day people."…"
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