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Hormones
BLurgh
29
Biology
Undergraduate 2
12/18/2012

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Term
Endocrine system
Definition
Composed of ductless glands that secrete hormones through the circulatory system
Term
Hormones of anterior pituitary gland
Definition
Thyroid stimulating hormone, follicle stimulating hormone, lutenizing hormone, Growth hormone, prolactin, adrenocorticotropic hormone, endorphins
Term
Hormones of the posterior pituitary gland
Definition
Oxytocin and vasopressin (ADH)
Term
Clasically described endocrine glands include...
Definition
Hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenals, pancreatic islets, gonads
Term
Hormone
Definition
"to excite". Is a signalling molecule. Distant targets
Term
Amines
Definition
One class of hormone, derived from tyrosine or tryptophan
Term
Proteins/peptides
Definition
one class of hormone, hormones solutle in water
Term
Steroids
Definition
one class of hormone, cholestrol derivatives that must use carriers b/c less osluble
Term
Melatonin
Definition
Amine hormone derived from tryptophan
Term
Thyroid stimulating hormone
Definition
Glycoprotein secreted from pituitary
Term
Gonadotropins FSH and LH
Definition
Glycoprotein secreted from pituitary
Term
Placental gonadotropins, human chorionic gonadotropin (hCG) and Equine chorionic gonadotropin (eCG)
Definition
Glycoproteins secreted from placenta
Term
hCG
Definition
Produced by the developing embryo after conception. Excreted in the kidneys and can be detected in urine. Pregnancy tests
Term
Growth hormone, Prolactin, Adrenocorticotropic hormone, parathormone, calcitonin, insulin and glucagon, hypothalamic hormones
Definition
All peptide and protein hormones
Term
Steroids with intact sterol nucleus
Definition
Gonadal androgens, estrogens and progestins as well as adrenal steroids icluding glucocorticoids, mineralocorticoids and sexual steroids
Term
Steroids with broken steroid nucleus
Definition
Vitamin D2 derivatives cholecalciferol and ergocalciferol
Term
Inappropriate use of steroids can lead to..
Definition
Hormonal imbalances such as gynecomastia and testicular atrophy as well as virilization
Term
Inapporpriate use of anabolic steroids
Definition
Harmful changes in cholesterol levels (increase LDL, decrease HDL), acne, high BP, liver damage, changes in heart structure (left ventricle)
Term
Eicosanoids
Definition
Derivatives of long chain polyunsaturated fatty acids (prostaglandins, thromboxanes, leukotrienes)
Term
Growth factors
Definition
Hormone-like peptides that stimulate or inhibit cell division. Do not originate in classically defined endocrine glands
Term
Stimulation of cell growth
Definition
induce differentiation
Term
Inhibit cell growth
Definition
induce cellular hypertrophy
Term
Specific growth factors
Definition
Somatomedins (IGF-1 or somatomedinC) and IGF-II, Epidermal growth factor (EGF), Transforming growth factors (TGF-beta1,2,3; activins; inhibin'mullerian-inhibiting substance (MIS) also known as antimullerian hormone (AMH)).
Term
Cytokines
Definition
small cell-signalling protein molecules secreted by numerous cells. Proteins, peptides and glycoproteins. Term originally used for immunomodulatory cells.
Term
Specific cytokines
Definition
IL-1, Il-6, TNF-alpha
Term
Action of cytokines
Definition
may be autocrine/paracrine in chemotaxis and endocrine as pyrogen. Not limited to immunomodulatory role. Also involved in several developmental processes during embryogenesis
Term
Regulation of hormone levels in blood
Definition
Change rate of synthesis, change rate of removal, degrade by lysosomal enzymes
Term
Synthesis of protein and peptide hormones
Definition
steady rate in unstimulated cell. Can change based on transcription rates, but reservoir of stored hormone in secretory vesicles.
Term
Synthesis of steroid hormones
Definition
Made on demand with no significant storage
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