👉 Cystoidean refers to a type of hormone produced by the prostate gland in men and is believed to have a significant role in regulating the body's normal function. It is produced by the gland when it produces testosterone, which is a key hormone responsible for muscle growth and development. In men, cysteine is a key component of proteins that are involved in protein synthesis and repair processes in the body. It also plays a role in the regulation of blood sugar levels, as it has been