በተጨማሪም thyrotropin-በመልቀቅ ሆርሞን (TRH) በመባል የሚታወቅ Protirelin, የታይሮይድ ሆርሞኖች መካከል secretion ያስከትላል (እንዲመረቱ)
Protirelin, amatchedwanso thyrotropin-kumasuka timadzi (TRH), amachititsa katulutsidwe a chithokomiro-zolimbikitsa timadzi (TSH)