what type of chemicals are dhea and androstenedione
Dehydroepiandrosterone Dehydroepiandrosterone (DHEA), also known as androstenolone, is an endogenous steroid hormone.[2][5] It is one of the most abundant circulating steroids in humans,[6] in whom it is produced in the adrenal glands,[7] the gonads, and the brain,[8] where it functions as a metabolic intermediate in the biosynthesis of the androgen and estrogen sex steroids.[5][9] However, DHEA also has a variety of potential biological effects in its own right, binding to an array of nuclear and cell surface receptors,[10] and acting as a neurosteroid and neurotrophin.[11]
Babylon Babylon (
Montreal Protocol "Recognizing that worldwide emissions of certain substances can significantly deplete and otherwise modify the ozone layer in a manner that is likely to result in adverse effects on human health and the environment. Determined to protect the ozone layer by taking precautionary measures to control equitably total global emissions of substances that deplete it with the ultimate objective of their elimination on the basis of developments in scientific knowledge"
Paris Peace Accords