Table 2.

Comparison of Bcl-2, Bax, and p53 expression in biopsy samples of TBPI patients based on time to surgery.

Protein marker	Mean ± SD of positive cells*		p-value
	Group A(≤ 6 months)	Group B(> 6 months)
Bcl-2	4.39 + 4.48	2.04 + 2.27	0.038
Bax	1.83 + 1.91	7.83 + 3.66	0.000
p53	2.68 + 3.20	7.57 + 5.08	0.004

Note:

^*positive cells: motorneuron cell with brownish cytoplasm, indicating the cell is positively stained by the immunohistochemistry marker.