Table 2.

Telomerase activity of 50 brain tumors and age of patients

No.	Ref.	Telomerase activity	Pathology	Age	No.	Ref.	Telomerase activity	Pathology	Age
1	63	++	M-II	70	26	27	+	M-I	82
2	64	+	M-I	37	27	28	−	M-I	56
3	65	+	M-I	66	28	30	+	M-I	68
4	76	−	A-IV	35	29	37	+	M-I	53
5	78	++	M-I	69	30	53	+	M-I	47
6	80	+	M-I	43	31	55	++	M-I	80
7	50	++	M-I	65	32	66	+	M-I	56
8	39	−	M-I	55	33	77	+	M-I	50
9	34	+	M-I	53	34	45	−	M-II	34
10	29	+	M-II	77	35	74	+	M-II	58
11	26	++	A-IV	7	36	31	−	A-I	28
12	20	++	M-I	62	37	22	−	A-II	30
13	13	++	M-II	36	38	70	+	A-II	32
14	11	++	A-II	41	39	16	+	A-III	45
15	82	−	A-II	20	40	40	+	A-III	23
16	75	++	A-II	46	41	84	−	A-III	42
17	67	−	A-IV	22	42	17	+	A-IV	42
18	14	++	A-III	43	43	33	+	A-IV	50
19	60	++	A-IV	50	44	35	++	A-IV	50
20	56	++	A-III	34	45	41	+	A-IV	66
21	71	++	A-I	8	46	54	+	A-IV	31
22	7	+	M-I	65	47	47	+	M-II	37
23	8	+	M-I	52	48	57	+	A-IV	25
24	12	−	M-I	37	49	72	++	A-IV	49
25	23	++	M-I	57	50	89	−	A-IV	68

+ Positive, ++ Highly positive, − Negative, M–I, and M–II grade I and grade II of meningiomas, A–H High grades (III and IV) of astrocytomas, A–L Low grades (I and II) of astrocytomas