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Endocrine System. Alterations. Homeostatic Controls. Endocrine Glands & Hormones. Endocrine Problem Overview. Hypothalamic Regulation Hyper- / Hypo- secretion of hormones Antibodies against hormone Receptor changes or blockage Signal Transduction problems. Cell Signaling.
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Endocrine System Alterations
Endocrine Problem Overview • Hypothalamic Regulation • Hyper- / Hypo- secretion of hormones • Antibodies against hormone • Receptor changes or blockage • Signal Transduction problems
Receptor Location Summary
Cellular Actions • Synthesis • Contraction and Relaxation of muscles • Secretion • Cell permeability changes • DNA transcription • Phosphorylate to activate enzymes • Protein synthesis
Feed Back Loops • Ultra Short • Short • Long
Fate of Hormones • Deactivated • Secreted
Hypothalamic Nuclei • Supraoptic • Preoptic • Paraventricular • Ventromedial • Dorsomedial • Mammillary • Arcuate (Infundibular)
Direct Neural Regulation of PP Store Release
Posterior Pituitary: ADH problems • DI • Decrease ADH • Central Diabetes • ISADH • Increase ADH • Tumor
Brain Sand in Pineal Gland Brain Sand: Calcium, Magnesium, Silicon
Dwarfism Three Types
Achondrodysplasia • Autosomal dominant (primarily from older men > 35 years old) • Two copies are fatal • Gene 3 Fibroblast Growth Factor point mutation • Abnormal Cartilage production • Short Bones • Skeletal radiograph to confirm
MOPD: Primordial Dwarfism • Microcephalic • Osteodysplasia • Fetal Development • Maximum: 3 ft tall • Proportional dwarf • Brain Aneurysms occur
Thyroid Hormone Control and Problems • Thyrotoxicosis • Hyperthyroidism • Hypothyroidism • Graves Disease • Autoimmune • Tumors • Carcinoma • Adenoma