Plasma catecholamine response to orthostasis in longstanding hypothyroidism.
In seven normotensive women affected by long-standing hypothyroidism norepinephrine peripheral levels were found significantly higher than after replacement therapy and than normal controls. After standing norepinephrine peripheral concentrations increased further; such an increase, although percentually lower than after therapy was sufficient to assure an adequate clinical response to orthostasis.
D000328:Adult; D000368:Aged; D004837:Epinephrine / Q000097:blood*; D005260:Female; D006339:Heart Rate; D006801:Humans; D007037:Hypothyroidism / Q000097:blood* / Q000188:drug therapy; D008875:Middle Aged; D009638:Norepinephrine / Q000097:blood*; D011187:Posture; D013974:Thyroxine / Q000627:therapeutic use
D013974:Thyroxine; D009638:Norepinephrine; D004837:Epinephrine