Table 2.

Subregional analysis of neuromelanin and tyrosine hydroxylase-immunoreactive neurons as a function of disease duration

		DM		DL		VM		VL		PL
No.	Disease durations	NM	TH	NM	TH	NM	TH	NM	TH	NM	TH
1	Controls (n = 8)	984 ± 95.40	748 ± 71.51	813 ± 70.02	688 ± 67.33	1368 ± 87.68	1115 ± 93.49	1879 ± 167.87	1499 ± 207.70	1645 ± 383.42	932 ± 341.97
	Cells/mm3 ± SEM
2	1	1292	386	1104	431	1463	484	828	291	598	322
3	3	1065	1022	962	612	2323	1971	1267	1145	408	272
4	4	703	595	696	562	1261	705	746	361	263	n/a
5	5	946	398	510	185	2109	465	1439	428	607	303
6	7	602	212	277	126	586	247	657	143	318	n/a
7	11	974	299	799	439	1321	237	1031	356	578	n/a
8	13	269	134	642	84	371	50	232	46	603	133
9	14	435	14	423	13	801	59	659	98	513	125
10	14	434	334	474	297	502	188	497	213	379	n/a
11	15	640	471	490	453	1294	388	1160	394	333	190
12	18	601	95	337	61	437	26	372	106	169	84
13	18	885	531	545	385	1148	395	1775	596	439	293
14	19	713	475	832	185	422	162	283	40	628	523
15	21	516	196	370	148	614	116	255	108	681	143
16	21	677	150	489	139	777	104	1062	354	495	123
17	22	454	319	248	198	619	364	592	269	305	85

DM = dorsomedial; DL = dorsolateral; VM = ventromedial; VL = ventrolateral; PL = pars lateralis.