TABLE 4.

Comparison of log SD₅₀/g of brain homogenate, determined by RT-QuIC end-point dilutions, of the effects of soil on HY dilution seeding capabilities

Mineral	Soil concn (mg/mL)	HY	1	2	3	Avg± SD
Kaolinite		HY without soil	9.93	10.03	10.90	10.29 ± 0.44
	100	HY with soil	MPR< 2	MPR< 2	MPR< 2	MPR< 2
		HY without soil	10.20	11.70	10.93	10.94 ± 0.61
	10	HY with soil	8.37	10.31	9.96	9.55 ± 0.84
		HY without soil	10.70	12.25	10.37	11.11 ± 0.82
	1	HY with soil	11.52	12.25	10.70	11.49 ± 0.63
		HY without soil	10.70	10.93	10.93	10.85 ± 0.11
	0.1	HY with soil	11.82	10.37	11.31	11.17 ± 0.60
Montmorillonite		HY without soil	10.70	10.03	10.20	10.31 ± 0.28
	10	HY with soil	MPR< 2	MPR< 2	MPR< 2	MPR< 2
		HY without soil	10.20	12.08	10.47	10.92 ± 0.83
	1	HY with soil	11.70	11.70	12.14	11.85 ± 0.21a
		HY without soil	10.47	11.03	10.03	10.51 ± 0.41
	0.1	HY with soil	11.70	11.47	10.20	11.12 ± 0.66
Hectorite		HY without soil	9.92	10.37	9.37	9.89 ± 0.41
	10	HY with soil	MPR< 2	MPR< 2	MPR< 2	MPR< 2
		HY without soil	9.37	10.03	10.46	9.95 ± 0.45
	1	HY with soil	9.93	10.20	11.03	10.39 ± 0.47
		HY without soil	10.47	10.03	10.70	10.40 ± 0.28
	0.1	HY with soil	10.20	10.70	11.44	10.78 ± 0.51

^a p<0.05.