Total number of neural cells in brain

Range at 20 weeks of intrauterine life ∼13×10^9: in adult 19–23×10^9 neurons
Organism Human Homo sapiens
Reference Malik S et al., Neurogenesis continues in the third trimester of pregnancy and is suppressed by premature birth. J Neurosci. 2013 Jan 9 33(2):411-23. doi: 10.1523/JNEUROSCI.4445-12.2013 p.421 right column 2nd paragraphPubMed ID23303921
Primary Source Samuelsen GB et al., The changing number of cells in the human fetal forebrain and its subdivisions: a stereological analysis. Cereb Cortex. 2003 Feb13(2):115-22 DOI: 10.1093/cercor/13.2.115PubMed ID12507942
Comments P.421 right column 2nd paragraph: "[Investigators'] findings are consistent with the data that the total number of neural cells in the human brain increases from ∼13×10^9 at 20 weeks of intrauterine life to 19–23×10^9 in the adult brain (primary source), indicating persistence of neurogenesis beyond 20 gw (gestational weeks)."
Entered by Uri M
ID 117218