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pregnenolone

biochemistry

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endocrine system

  • The principal glands of the female and male human endocrine systems.
    In human endocrine system: Hormone synthesis

    …the conversion of cholesterol into pregnenolone, which occurs in mitochondria (organelles that produce most of the energy used for cellular processes). This conversion is mediated by a cleavage enzyme, the synthesis of which is stimulated in the adrenal glands by corticotropin (adrenocorticotropin, or ACTH) or angiotensin and in the ovaries…

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