Source https://www.fightaging.org/archives/2019/10/a-deeper-delve-into-the-mechanisms-of-thymic-atrophy/
The faltering quality of the immune system in later life is driven by several quite different factors, but the one that is perhaps most evident in the immune declines of middle age is the atrophy of the thymus. The thymus is a small organ located under the sternum and over the heart; it is where thymocytes produced in the bone marrow mature into T cells. As ever more of the active tissue of the thymus is replaced with fat, the ongoing supply of new T cells diminishes. The adaptive immune system becomes ever more a closed system and its cells b…
Source https://www.fightaging.org/archives/2019/10/a-deeper-delve-into-the-mechanisms-of-thymic-atrophy/
The faltering quality of the immune system in later life is driven by several quite different factors, but the one that is perhaps most evident in the immune declines of middle age is the atrophy of the thymus. The thymus is a small organ located under the sternum and over the heart; it is where thymocytes produced in the bone marrow mature into T cells. As ever more of the active tissue of the thymus is replaced with fat, the ongoing supply of new T cells diminishes. The adaptive immune system becomes ever more a closed system and its cells b…
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