Scientific illustration depicting mitochondrial 'pearling' process evenly spacing mtDNA nucleoids via calcium influx.
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EPFL study links mitochondrial “pearling” to the even spacing of mtDNA nucleoids

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Scientists at EPFL report that a transient shape change in mitochondria—known as “pearling,” in which the organelle briefly forms bead-like constrictions—can redistribute clusters of mitochondrial DNA (mtDNA) into more evenly spaced nucleoids. The work, published April 2, 2026 in Science, suggests the process is triggered by calcium influx into mitochondria and may help explain how cells maintain robust mtDNA organization, a feature implicated in a range of mitochondrial-related disorders.

Weekly roundup Apr 09

  • Kenyan leaders intervene in hospital bills, union elections, and health insurance debate
  • South African health updates include twin's death, alcohol warnings, and Basson ruling
  • German health officials debate reforms, appointments, and Long Covid drug coverage
  • Indian police dismantle illegal IVF and counterfeit medicine networks
  • UCSF studies link aging mechanisms to severe respiratory and cognitive decline
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