Table 3.
Laboratory data.
| 24 °C | 19 °C | P | |
|---|---|---|---|
| Catecholamines | |||
| Plasma norepinephrine AUC (×105 pg min/ml) | 2.74±1.11 | 4.68±2.27 | <0.0001 |
| Plasma norepinephrine 420′ (pg/ml) | 464.0±264.7 | 895.7±565.9 | <0.001 |
| Urine epinephrine (μg/12 h) | 5.10±2.415 | 6.41±3.636 | 0.05 |
| Urine norepinephrine (μg/12 h) | 20.70±8.659 | 29.44±11.29 | <0.001 |
| Urinary DOPAC (μg/12 h) | 118.1±47.80 | 136.3±42.08 | 0.03 |
| DOPAC AUC (×106 pg min/ml) | 0.97±0.45 | 1.14±0.69 | 0.04 |
| DHPG AUC (×105 pg min/ml) | 8.12±3.59 | 9.35±4.25 | <0.01 |
| Glucocorticoid axis | |||
| ACTH AUC (×104 pg min/ml) | 1.25±0.42 | 1.29±0.54 | 0.49 |
| Serum cortisol AUC (×103 μg min/dl) | 6.69±1.26 | 7.03±1.26 | 0.21 |
| Urinary cortisol (μg/g creatinine) | 28.5±17.4 | 38.5±33.2 | <0.02 |
| Thyroid hormone axis | |||
| TSH AUC (×103 μUI min/ml) | 0.98±0.57 | 1.04±0.53 | 0.22 |
| T3 AUC (×104 ng min/dl) | 7.02±1.14 | 7.22±1.31 | 0.07 |
| Free T4 AUC (×103 ng min/dl) | 0.98±0.13 | 1.02±0.15 | 0.02 |
| Serum glucose and insulin | |||
| Glucose AUC (×103 mg min/dl) | 65.90±4.32 | 65.03±4.20 | 0.29 |
| Fasting glucose AUC (−15′ to 300′) (×103 mg min/dl) | 26.63±1.95 | 26.62±2.04 | 0.99 |
| Postmeal glucose AUC (360′–540′) (×103 mg min/dl) | 19.71±2.55 | 18.69±2.61 | 0.04 |
| Insulin AUC (×103 mIU min/ml) | 8.53±3.44 | 10.77±6.34 | 0.07 |
| Fasting insulin AUC (−15′ to 300′) (×103 mIU min/ml) | 0.65±0.86 | 0.83±0.98 | 0.04 |
| Postmeal insulin AUC (360′–540′) (×103 mIU min/ml) | 5.78±2.19 | 7.39±5.11 | 0.13 |
| Microdialysis of subcutaneous adipose tissue | |||
| Glycerol AUC (×105 μmol min/ml) | 1.12±0.50 | 1.35±0.62 | 0.07 |
| Glucose AUC (×103 mmol min/ml) | 2.84±0.60 | 2.56±0.60 | 0.07 |
| Other measurements | |||
| Free fatty acids AUC (×105 μEq min/l) | 2.88±0.93 | 3.24±1.14 | <0.01 |
| β-Hydroxybutyrate AUC (×104 μmol min/l) | 7.70±4.27 | 9.58±6.95 | 0.50 |
| Creatinine kinase AUC (×105 U min/l) | 1.02±0.77 | 1.08±0.82 | 0.62 |
| Urinary myoglobin | Not detected | Not detected |