Page 291 - Color Atlas Of Pathophysiology (S Silbernagl Et Al, Thieme 2000)
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A.  Causes of  Hypothyroidism, Hyperthyroidism and Goitre
                                                       Hypothalamic
              1  Iodine        Stress           TRH    lesion
                 deficiency
                Food
                                Catecholamines
                                                     Dopamine
              Iodine excess,   Estrogens             Somatostatin
              rhodanide, etc.
                                                     Glucocorticoids
                       2    Carrier defect  TSH                        Hypo-/Hyperthyroidism, Goitre: Causes
                            Na +
                                             Pituitary
                                             insufficiency
                                                Autoimmune disease
                     J –
                                           TSI
                   Peroxidase
         J –
                3                                                      Plate 9.13

               °
              J 2   Peroxidase
                    deficiency      Cell proliferation
                          Thyroglobulin
          OH               4
        J     J    5         OH    Cell damage
                                   by tumor,
                OH                 inflammation etc.
          TG        J
           ~DJT              TG
                                                     Goitre
                TG
                  ~MJT         Proteolysis
          Coupling
             6                                   Defective
          OH                                     conversion
        J     J  OH                     7
                     J
                                            T 4
           O                                      8
        J     J   O
               J     J         Genetic defect,     T 3
                               iodine excess,
                               lithium
          TG
            ~T 4  TG      Follicle epithelial cell
           Storage  ~T 3  of the thyroid  Receptor defect
                                                 Target organs,
             Colloid                                e.g. heart        281

       Silbernagl/Lang, Color Atlas of Pathophysiology © 2000 Thieme
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