Table 5.

Effects of pyridoxine on the growth of free hair follicles in vitro¹.

Item	Pyridoxine concentration, μmol/L						RMSE	P-value
	0	10	20	40	80	160
0 to 24 h, μm	7.20b	7.14b	7.11b	7.30b	9.13a	5.67c	0.693	<0.001
24 to 48 h, μm	5.78d	6.52bc	6.74b	7.19b	9.08a	6.00cd	0.743	<0.001
48 to 72 h, μm	3.38c	2.85c	3.23c	4.69a	5.08a	4.11b	0.625	<0.001
72 to 96 h, μm	2.53c	2.68c	3.08c	3.79b	4.38a	3.02c	0.590	<0.001
96 to 120 h, μm	2.35d	2.71cd	3.15bc	3.89a	4.18a	3.72ab	0.639	<0.001
120 to 144 h, μm	2.10c	2.50c	3.05b	4.03a	4.29a	3.21b	0.517	<0.001
Total length, μm	23.33d	24.39cd	26.37c	30.88b	36.15a	25.72c	2.203	<0.001
Growth ratio, μm/d	3.89d	4.07cd	4.40c	5.15b	6.03a	4.29c	0.367	<0.001

^{a, b, c} Within a row, means with different superscript letters are significantly different (P < 0.05).

¹Data represent means and root mean error (RMSE), n = 10 for per group.