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A study finds SIRT6 decline with age harms brain health by disrupting tryptophan metabolism, but blocking TDO2 may reduce damage.
A multinational study published in Nature Communications reveals that the enzyme SIRT6 helps protect the brain from aging by regulating tryptophan metabolism, which affects energy production, serotonin, and melatonin.
As SIRT6 declines with age, tryptophan shifts toward a pathway producing toxic byproducts, contributing to cognitive decline, sleep issues, and mood disorders.
In fruit flies lacking SIRT6, inhibiting the enzyme TDO2 reduced brain damage and improved mobility, suggesting that targeting SIRT6 or TDO2 could offer new treatments for age-related brain health problems.
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Un estudio encuentra que la disminución de SIRT6 con la edad perjudica la salud cerebral al interrumpir el metabolismo del triptófano, pero el bloqueo de TDO2 puede reducir el daño.