Table 3. Significant dose-responses of PCB 180 based on adipose tissue concentration.
Parameter | CES 5% | CES 10% | |||||||
Sex | Model | CED (µg/g lipid) | CED-L (µg/g lipid) | Ratio CED/CED-L | CED (µg/g lipid) | CED-L (µg/g lipid) | Ratio CED/CED-L | Maximum responseb (%) | |
Open field behavior | |||||||||
Percent time in inner zone, day 24 | F | E4 | 1.55 | 0.525 | 2.95 | 3.17 | 1.07 | 2.96 | 111 |
Percent distance in inner zone, day 24 | F | E4 | 4.12 | 1.16 | 3.54 | 8.69 | 2.423 | 3.59 | 53.0 |
Habituation, time | F | E2 | 1130 | 739 | 1.53 | 2320 | 1518 | 1.53 | −40.1 |
Habituation, distance | F | E2 | 1340 | 865 | 1.55 | 2740 | 1777 | 1.54 | −35.2 |
Hematology | |||||||||
Red blood cell count | M | E4 | 598 | 337 | 1.77 | 1890 | NAa | NA | −12.4 |
Red blood cell count | F | E2 | 4170 | 3327 | 1.25 | 8560 | 6834 | 1.25 | −13.0 |
Hematocrit | M | E4 | 601 | 247 | 2.43 | 2090 | NA | NA | −11.7 |
Hematocrit | F | E2 | 5430 | 4178 | 1.30 | 11100 | 8582 | 1.29 | −10.1 |
Hemoglobin | M | E4 | 872 | 227 | 3.84 | NA | NA | NA | −8.59 |
Hemoglobin | F | E2 | 4840 | 3889 | 1.24 | 9930 | 7989 | 1.24 | −11.3 |
Platelet count | M | E4 | 156 | 36.4 | 4.29 | 539 | NA | NA | 12.0 |
Red cell distribution width - SD | F | E3 | 8370 | 5756 | 1.45 | 10700 | 9281 | 1.15 | 11.1 |
Clinical chemistry | |||||||||
Chlolesterol | M | E4 | 177 | 91.4 | 1.94 | 365 | 189 | 1.93 | 81.7 |
Chlolesterol | F | E4 | 640 | 387 | 1.65 | 1330 | 813 | 1.64 | 53.8 |
Triglycerides | M | E4 | 12.5 | 7.26 | 1.72 | 26.2 | 15.2 | 1.73 | −62.5 |
Total protein | M | E4 | 1080 | 575 | 1.88 | 2970 | 1629 | 1.82 | 14.2 |
Glucose | M | E2 | 866 | 632 | 1.37 | 1780 | 1297 | 1.37 | −35.4 |
Glucose | F | E2 | 4450 | 2648 | 1.68 | 9140 | 5440 | 1.68 | −12.2 |
Alkaline phosphatase | M | E2 | 2300 | 1393 | 1.65 | 4730 | 2861 | 1.65 | −15.4 |
Alkaline phosphatase | F | E4 | 308 | 136 | 2.27 | 701 | 309 | 2.27 | −25.7 |
Albumin | M | E2 | 6750 | 4696 | 1.44 | 13200 | 9174 | 1.44 | 5.49 |
Potassium | F | E2 | 7900 | 5086 | 1.55 | 16200 | 10450 | 1.55 | −7.07 |
Total Bilirubin | F | E4 | 19.4 | 3.77 | 5.14 | 48.2 | 8.98 | 5.37 | −18.2 |
Thyroid | |||||||||
Thyroid gland weight | M | E2 | 1030 | 720 | 1.43 | 2010 | 1407 | 1.43 | 41.9 |
Thyroid gland weight | F | E2 | 3010 | 1698 | 1.77 | 6190 | 3488 | 1.77 | −17.6 |
Relative thyroid gland weight | M | E2 | 958 | 710 | 1.35 | 1870 | 1388 | 1.35 | 45.7 |
Relative thyroid gland weight | F | E2 | 3220 | 1759 | 1.83 | 6610 | 3614 | 1.83 | −16.5 |
Serum free T4 (S-fT4) | M | E4 | 158 | 117 | 1.35 | 328 | 243 | 1.35 | −67.2 |
Serum free T4 (S-fT4) | F | E2 | 821 | 683 | 1.20 | 1690 | 1402 | 1.21 | −50.7 |
Serum free T3 (S-fT3) | M | E4 | 428 | 196 | 2.18 | 976 | 449 | 2.18 | −25.0 |
Serum free T3 (S-fT3) | F | E2 | 2280 | 1496 | 1.52 | 4680 | 3072 | 1.52 | −22.5 |
Serum TSHc | M | E4 | 0.29 | 0.04 | 6.50 | 0.58 | 0.09 | 6.50 | 5450 |
Serum TSHc | F | E2 | 206 | 126 | 1.63 | 402 | 246 | 1.63 | 1355 |
Large thyroid follicles (%) | F | E4 | 105 | 52.7 | 1.99 | 218 | 110 | 1.99 | −70.9 |
Gonadotropins | |||||||||
Serum LH | M | E2 | 1160 | 648 | 1.79 | 2390 | 1331 | 1.80 | −27.8 |
Serum FSH | M | E2 | 1600 | 1116 | 1.43 | 3290 | 2292 | 1.44 | −21.1 |
Retinoids | |||||||||
Liver retinol concentration | M | E4 | 31.2 | 18.8 | 1.66 | 66.6 | 40.0 | 1.66 | −44.6 |
Liver retinol concentration | F | E2 | 1000 | 762 | 1.31 | 2060 | 1565 | 1.32 | −43.9 |
Liver retinyl esters concentration | M | E4 | 108 | 60.1 | 1.80 | 225 | 126 | 1.79 | −63.4 |
Liver retinyl esters concentration | F | E2 | 793 | 670 | 1.18 | 1630 | 1375 | 1.19 | −51.9 |
Liver all-trans RA concentration | M | E2 | 1920 | 1143 | 1.68 | 3750 | 2233 | 1.68 | 20.7 |
Liver 9c-4o-13,14-dh-RA concentration | F | E4 | 55.5 | 39.6 | 1.40 | 115 | 82.1 | 1.40 | −78.2 |
Liver retinol amount | M | E2 | 1860 | 1111 | 1.67 | 3820 | 2282 | 1.67 | −18.5 |
Liver retinol amount | F | E2 | 2840 | 1476 | 1.92 | 5820 | 3032 | 1.92 | −18.5 |
Liver retinyl esters amount | M | E2 | 620 | 525 | 1.18 | 1270 | 1078 | 1.18 | −45.7 |
Liver retinyl esters amount | F | E2 | 1620 | 1206 | 1.34 | 3300 | 2477 | 1.33 | −30.1 |
Liver all-trans RA amount | M | E2 | 95.1 | 36.8 | 2.58 | 196 | 76 | 2.58 | 92.7 |
Liver 9c-4o-13,14-dh-RA amount | F | E4 | 59.6 | 37.4 | 1.59 | 124 | 77.9 | 1.59 | −70.3 |
Kidney retinol concentration | M | E2 | 863 | 640 | 1.35 | 1690 | 1250 | 1.35 | 51.9 |
Kidney retinol concentration | F | E2 | 2060 | 1346 | 1.53 | 4030 | 2630 | 1.53 | 30.7 |
Kidney retinyl esters concentration | M | E4 | 42.2 | 13.6 | 3.10 | 85.2 | 27.5 | 3.10 | 256 |
Kidney all-trans RA concentration | F | E2 | 2930 | 2052 | 1.43 | 5720 | 4009 | 1.43 | 20.7 |
Kidney retinol amount | M | E2 | 897 | 638 | 1.41 | 1750 | 1244 | 1.41 | 49.0 |
Kidney retinol amount | F | E2 | 2240 | 1398 | 1.60 | 4370 | 2731 | 1.60 | 28.0 |
Kidney retinyl esters amount | M | E4 | 38.8 | 12.5 | 3.11 | 78.3 | 25.2 | 3.11 | 253 |
Kidney all-trans RA amount | F | E2 | 3290 | 2092 | 1.57 | 6430 | 4088 | 1.57 | 18.2 |
Serum retinol concentration | F | E2 | 2470 | 1521 | 1.62 | 4820 | 2970 | 1.62 | 25.0 |
Bone densitometry | |||||||||
Cortical area of diaphysis | M | E2 | 5930 | 3506 | 1.69 | 12200 | 7202 | 1.69 | −6.19 |
Trabecular area of metaphysis | F | E2 | 6230 | 3714 | 1.68 | 12200 | 7255 | 1.68 | 9.25 |
Bone biomechanics | |||||||||
F yield | F | E2 | 2860 | 1647 | 1.74 | 5880 | 3384 | 1.74 | −18.3 |
Organ weights | |||||||||
Liver weight | M | E4 | 42.3 | 19.8 | 2.13 | 88.4 | 41.3 | 2.14 | 65.0 |
Liver weight | F | E4 | 512 | 263 | 1.95 | 1090 | 565 | 1.93 | 43.1 |
Relative liver weight | M | E4 | 61.0 | 34.8 | 1.75 | 127 | 72.4 | 1.75 | 66.0 |
Relative liver weight | F | E4 | 552 | 359 | 1.54 | 1170 | 766 | 1.53 | 44.8 |
Relative thymus weight | M | E2 | 2230 | 1270 | 1.76 | 4350 | 2480 | 1.75 | 17.6 |
Ovaries weight | F | E4 | 201 | 31.7 | 6.34 | 510 | 79.6 | 6.41 | 17.0 |
Relative ovaries weight | F | E5 | 661 | 67.5 | 9.79 | 826 | 164 | 5.04 | 16.0 |
DNA damage markers | CES 100% | ||||||||
Liver p53 | F | E4 | 65.2 | 30.0 | 2.18 | 2240 | 1053 | 2.13 | 141 |
Liver p53 Ser15 | F | E5 | 361 | 124 | 2.91 | 438 | 411 | 1.07 | 181 |
Liver pChk2 Thr68 | F | E5 | 337 | 98.2 | 3.43 | 382 | 165 | 2.31 | 185 |
Liver enzymesd | |||||||||
EROD activity | M | E4 | 1.41 | 0.850 | 1.66 | 2.82 | 1.71 | 1.65 | |
EROD activity | F | E5 | 33.6 | 15.8 | 2.13 | 57.0 | 29.6 | 1.93 | |
PROD activity | M | E5 | 3.87 | 2.74 | 1.41 | 5.49 | 4.04 | 1.36 | |
PROD activity | F | E5 | 26.4 | 13.5 | 1.96 | 36.5 | 20.2 | 1.81 | |
CYP2B1 mRNA | M | E5 | 1.52 | 0.584 | 2.60 | 2.15 | 0.895 | 2.40 | |
CYP2B1 mRNA | F | E5 | 12.4 | 5.74 | 2.16 | 15.5 | 7.76 | 2.00 | |
CYP3A1 mRNA | M | E4 | 5.88 | 3.63 | 1.62 | 11.8 | 7.26 | 1.63 | |
CYP3A1 mRNA | F | E4 | 6.75 | 3.19 | 2.12 | 13.5 | 6.39 | 2.11 | |
UGT1A1 mRNA | M | E2 | 175 | 134 | 1.30 | 342 | 262 | 1.31 | |
UGT1A1 mRNA | F | E2 | 423 | 305 | 1.30 | 826 | 596 | 1.39 | |
UGT1A6 mRNA | M | E4 | 15.6 | 8.99 | 1.74 | 31.3 | 18.0 | 1.74 | |
UGT1A6 mRNA | F | E4 | 73.8 | 37.8 | 1.95 | 149 | 76.42 | 1.95 |
Not available.
Calculated as the percent difference between controls and high dose according to the fitted model.
Half min value added to zeros.
Enzyme induction data from Roos et al., 2011.