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Table 1 Thyroid and total antioxidant activity responses to potassium iodide treatment in heat-stressed rats

From: The Wolff–Chaikoff effect ameliorates heat stress in rats

Parameter Treatmentc  
  CN KI SE
Free thyroxine (ng/dL) 1.10a 0.95a 0.15
Free triiodothyronine (pg/mL) 1.91a 1.66a 0.08
Total antioxidant capacity (µM CRE)b 198.80a 238.30a 9.10
  1. aRow means with different superscripts differ significantly (P < 0.05)
  2. bCopper reducing equivalent
  3. cTreatment groups received either 0 (control; CN) or 0.5% potassium iodide (KI) in drinking water; 3 h prior to the heat stress challenge (ambient temperature—Ta = 33.22 ± 0.25 °C; RH% = 31.62 ± 1.03%) from 09:00 to 13:00 h on Day 4. Climatic conditions during the 10-day experimental duration were set to 4 days at thermoneutrality (TN; Ta = 23.60 ± 0.05 °C; RH% = 44.70 ± 0.21%), then HS for 4 h, and finally back to TN until the end of trial