Person:
Barja De Quiroga Losada, Gustavo

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First Name
Gustavo
Last Name
Barja De Quiroga Losada
URI
https://hdl.handle.net/20.500.14352/81126
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Biológicas
Department
Genética, Fisiología y Microbiología
Area
Fisiología
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Item Type: Publication × Subject: 576.3 ×

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    Mitochondrial ROS production, oxidative stress and aging within and between species: Evidences and recent advances on this aging effector
    (Experimental Gerontology, 2023) Gómez, José; Mota Martorell, Natalia; Jové, Mariona; Pamplona, Reinald; Barja De Quiroga Losada, Gustavo
    Mitochondria play a wide diversity of roles in cell physiology and have a key functional implication in cell bioenergetics and biology of free radicals. As the main cellular source of oxygen radicals, mitochondria have been postulated as the mediators of the cellular decline associated with the biological aging. Recent evidences have shown that mitochondrial free radical production is a highly regulated mechanism contributing to the biological determination of longevity which is species-specific. This mitochondrial free radical generation rate induces a diversity of adaptive responses and derived molecular damage to cell components, highlighting mitochondrial DNA damage, with biological consequences that influence the rate of aging of a given animal species. In this review, we explore the idea that mitochondria play a fundamental role in the determination of animal longevity. Once the basic mechanisms are discerned, molecular approaches to counter aging may be designed and developed to prevent or reverse functional decline, and to modify longevity.