PMID- 11502354 OWN - NLM STAT- MEDLINE DCOM- 20011011 LR - 20190701 IS - 0304-3940 (Print) IS - 0304-3940 (Linking) VI - 309 IP - 2 DP - 2001 Aug 24 TI - The spindle neurons are present in the cingulate cortex of chimpanzee fetus. PG - 97-100 AB - We report the existence of the spindle neurons in layer Vb of the anterior cingulate cortex (Brodman's area 24b) in a chimpanzee fetus (embryonic day 224), which was stillborn. About 5.3% of neuronal cells in layer Vb were the spindle neurons at this stage. The width of the spindle neurons was 10-15 microm. In layer V of the prefrontal cortex (Brodman's area 46) in the chimpanzee fetus, and in layer Vb of the cingulate cortex in adult macaque monkeys, no spindle neurons were observed. The immunoreactivity against brain-derived neurotrophic factor (BDNF) was detected only in the pyramidal neurons at this stage. These findings suggest that the existence of the spindle neurons in layer Vb of the anterior cingulate cortex and the presence of BDNF in the pyramidal neurons are intrinsically characterized during the embryonic stage of the chimpanzee. FAU - Hayashi, M AU - Hayashi M AD - Department of Cellular and Molecular Biology, Primate Research Institute, Kyoto University, Kanrin, Inuyama, Aichi 484-8506, Japan. hayashi@pri.kyoto-u.ac.jp FAU - Ito, M AU - Ito M FAU - Shimizu, K AU - Shimizu K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/analysis MH - Fetus/cytology MH - Gyrus Cinguli/*cytology/*embryology MH - Male MH - Neurons/chemistry/*cytology MH - Pan troglodytes EDAT- 2001/08/15 10:00 MHDA- 2001/10/12 10:01 CRDT- 2001/08/15 10:00 PHST- 2001/08/15 10:00 [pubmed] PHST- 2001/10/12 10:01 [medline] PHST- 2001/08/15 10:00 [entrez] AID - S0304-3940(01)02039-0 [pii] AID - 10.1016/s0304-3940(01)02039-0 [doi] PST - ppublish SO - Neurosci Lett. 2001 Aug 24;309(2):97-100. doi: 10.1016/s0304-3940(01)02039-0.