Inside our body cells are many mitochondria, the so-called energy factories. They ensure that cells get the energy they need to function properly. This energy is released via a complex process that also produces harmful substances. Normally, damaged mitochondria are cleared away and replaced. As people age, this process becomes less efficient, meaning the mitochondria produce less energy and make more harmful substances.
A major cause of this decline is a reduction in the production of phosphatidylcholine. This is a fat-like compound that is essential for the structure and function of mitochondria. In ageing cells, the body produces less and less of this substance. As a result, the mitochondria function less and less effectively, which contributes to a reduced energy metabolism in the body.
This discovery provides new insights into how signs of ageing develop at the cellular level. It also shows that nutrition and biological processes that contribute to phosphatidylcholine production may play a role in healthy ageing. Choline, a nutrient the body uses to make phosphatidylcholine, may therefore potentially have a supporting role in mitochondrial health.
Although it is not the only cause of mitochondrial decline, this research highlights the importance of good cellular health in ageing. By understanding which processes in the body diminish, targeted strategies can help to maintain vitality for longer.
This is relevant because a well-functioning little energy factory in every cell helps to make ageing healthier.
Source: Reason
