Table 1.

Age-related decrease in the number of proliferating cells (NPC) and average volume number density (AVND) of proliferating cells located in the mouse brain and its compartments.

Mouse	Mouse Age	Mouse Brain		Mouse Brain						MPZ						CMS
				MPZ		SGZ		Other		CMS		RMS		Midlayer		Lateral Walls (SEZ)		Other Parts of CMS
		NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND	NPC	AVND
2M-A	2 Months	68,010	193.3	45,524	283.7	2732	45.5	19,754	6.4	30,607	357.3	3559	323.9	11,358	72.7	14,087	272.2	16,520	429.9
2M-B	2 Months	67,636	173.7	44,505	259.5	2570	40.5	20,561	6.1	29,571	330.0	3234	287.5	11,700	73.5	13,343	270.5	16,228	378.8
4M-A	4 Months	52,489	127.4	32,030	205.3	1554	23.7	18,905	3.9	23,019	241.9	3366	239.4	5645	36.1	11,729	196.8	11,290	288.6
4M-B	4 Months	49,359	137.5	30,425	219.6	1581	25.6	17,353	4.8	22,012	254.9	3115	283.5	5298	35.3	10,184	193.6	11,828	307.7
8M-A	8 Months	42,711	82.5	19,376	176.6	625	12.2	22,710	4.9	14,881	184.1	3021	220.0	1474	11.1	8010	159.1	6871	210.7
8M-B	8 Months	40,904	76.4	18,901	160.7	613	12.8	21,390	4.4	14,969	170.5	2433	191.8	1499	11.4	7662	145.5	7307	196.7
12M-A	12 Months	33,200	48.4	12,869	119.8	325	6.7	20,006	3.8	10,057	120.2	2136	153.5	676	6.3	5926	107.2	4131	139.0
12M-B	12 Months	30,453	45.2	11,632	112.3	314	8.6	18,507	3.8	9974	118.4	1067	113.8	591	6.3	6255	106.7	3719	138.1
30M-A	30 Months	20,269	18.5	4877	64.9	70	2.7	15,322	4.2	3970	74.4	446	42.8	461	3.6	3337	76.4	633	63.9
30M-B	30 Months	20,215	13.9	4289	51.1	69	2.1	15,857	4.0	3592	58.5	306	25.8	391	3.4	2644	57.9	948	60.0