| Hormone | Structure (1) | Principal Source Link to diagram showing locations of the endocrine glands |
|---|---|---|
| Thyroid-stimulating hormone (TSH) | protein (201) | Anterior lobe of pituitary |
| Follicle-stimulating hormone (FSH) | protein (204) | |
| Luteinizing hormone (LH) | protein (204) | |
| Prolactin (PRL) | protein (198) | |
| Growth hormone (GH) | protein (191) | |
| Adrenocorticotropic hormone (ACTH) | peptide (39) | |
| Antidiuretic hormone (ADH)(vasopressin) | peptide (9) | Posterior lobe of pituitary |
| Oxytocin | peptide (9) | |
| Thyrotropin-releasing hormone (TRH) | peptide (3) | Hypothalamus |
| Gonadotropin-releasing hormone (GnRH) | peptide (10) | |
| Growth hormone-releasing hormone (GHRH) | peptides (40) | |
| Corticotropin-releasing hormone (CRH) | peptide (41) | |
| Somatostatin | peptides (14, 28) | |
| Dopamine | Tyrosine derivative | |
| Melatonin | Tryptophan derivative | Pineal gland |
| Thyroxine (T4) | Tyrosine derivative | Thyroid Gland |
| Triiodothyronine T3 | Tyrosine derivative | |
| Calcitonin | peptide (32) | |
| Parathyroid hormone (PTH) | protein (84) | Parathyroid glands |
| Glucocorticoids (e.g., cortisol) | steroids | Adrenal cortex |
| Mineralocorticoids (e.g., aldosterone) | steroids | |
| Androgens (e.g., testosterone) | steroids | |
| Adrenaline (epinephrine) | Tyrosine derivative | Adrenal medulla |
| Noradrenaline (norepinephrine) | Tyrosine derivative | |
| Estrogens (e.g., estradiol) | steroid | Ovarian follicle |
| Progesterone | steroid | Corpus luteum and placenta |
| Human chorionic gonadotropin (HCG) | protein (237) | Trophoblast and placenta |
| Androgens (e.g., testosterone | steroid | Testes |
| Insulin | protein (51) | Pancreas (Islets of Langerhans) |
| Glucagon | peptide (29) | |
| Somatostatin | peptides (14, 28) | |
| Renin | protein | Kidney |
| Erythropoietin (EPO) | protein (166) | |
| Calcitriol | steroid derivative | |
| Calciferol (vitamin D3) | steroid derivative | Skin |
| Atrial-natriuretic peptide (ANP) | peptides (28,32) | Heart |
| Gastrin | peptides (14) | Stomach and intestine |
| Secretin | peptide (27) | |
| Cholecystokinin (CCK) | peptides (8) | |
| Somatostatin | peptides (14,28) | |
| Neuropeptide Y | peptide (36) | |
| Insulin-like growth factor-1 (IGF-1) | protein (70) | Liver |
| Angiotensinogen | protein | |
| Thrombopoietin | protein (332) | |
| Leptin | protein | Fat cells |
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