[Individual variability and structural asymmetry of the dorsal medial nucleus of the thalamus in men and women].
Using quantitative neurohistological indices, a structure of the dorsal medial nucleus of the thalamus has been studied in 10 cases from the collection of the Institute of Brain, Russian Academy of Medical Sciences. The sample included 7 men and 3 women aged from 19 to 59 years, right-handed, who died suddenly and did not suffer lifetime neurological or mental disorders. The following indices have been determined: neuronal density, density of total and satellite glia, density of neurons surrounded by the satellite glia as well as portion of the satellite glia to the total one and portion of satellite-surrounded neurons to their total amount. Some sex and hemisphere differences were found against the background of individual variability of the indices studied. No asymmetry was observed for neuronal density both in men and women, individual variability in women being less expressed. The density of glial cells was dominated on the right side in men and on the left side in women and that of satellite ones, on the contrary, was higher on the left side in men and more variable in women. There was a significant asymmetry of the density of neurons surrounded by the satellite glia with higher indices on the left side in men and higher variability in women. However the portion of neurons with satellite glia to their total amount as well as the portion of the satellite glia to the total one was larger on the left side both in men and women. In total, there was a trend to a larger asymmetry of the dorsal medial nucleus structure in men and to individual variability in women.
Amunts
V V
VV
D000328:Adult; D002452:Cell Count; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D020645:Mediodorsal Thalamic Nucleus / Q000033:anatomy & histology* / Q000166:cytology; D008875:Middle Aged; D009474:Neurons / Q000166:cytology; D012737:Sex Factors