GeroScience

Genetic study finds tentative longevity links in Calabria

An exploratory genetic study of 705 Calabrians identified 22 suggestive longevity-linked regions, with one meeting the genome-wide threshold for statistical significance.

Our read

Mechanisms
Studied:
Genetic association study of 705 Calabrian individuals, against younger controls (Independent replication)
What changed:
Comparing long-lived participants with younger controls identified 22 suggestive longevity-linked regions; one met the genome-wide threshold
The catch:
Most genetic signals failed to replicate in external datasets
In the record:
The 912th paper on APOE with results in people; 3,837 on record in all.

Editor of record: Boris Djordjevic · AgingResearch.News

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Among 705 people from Calabria in southern Italy, an exploratory observational study compared long-lived participants with younger controls. It searched across their DNA for variants linked to longevity, while accounting for relatedness and genetic differences within the population.

The study identified 22 suggestive genetic regions; one met the threshold for genome-wide statistical significance. Most signals did not replicate in external datasets. A combined analysis of datasets supported one variant that regulated the activity of genes related to the proteasome, the cell’s protein-disposal machinery. Some established longevity-linked regions showed no association here. The authors suggested that protein upkeep, DNA maintenance, programmed cell death, and processes involving the hormone insulin and inflammation might affect longevity in this population.

Why it matters

Extreme survival in Calabria offers a way to explore how population-specific genetic influences intersect with shared aging-related processes.

Caveats

Most genetic signals did not replicate in external datasets, and the proposed biological pathways remained hypotheses. These preliminary findings from a relatively genetically isolated Calabrian population may not apply elsewhere.

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