Learning & education: Calcium
“Powerhouse of the cell” and “battery of a car” are some common analogies you may have heard used to describe the mitochondria [1]. These analogies oversimplify the functions and role of mitochondria in cell physiology. In contrast to powerhouses with a single energy transformation purpose, mitochondria are multifaceted and multifunctional [1].
Vitamin D is a steroid hormone and micronutrient that has many biological functions. It occurs mainly in two forms, D3 (cholecalciferol) and D2 (ergocalciferol), but also as the vitamin D metabolite 25-hydroxyvitamin D (25(OH)D) [1].