title: A volumetric screening procedure for the Göttingen minipig brain.
abstract: A screening procedure was developed to provide quantitative estimates of structural parameters, regional volumes and neuron number, in a neurotoxicologic study of the Göttingen minipig brain. The study material consisted of normal controls and brains collected from young minipigs which had been exposed in utero to the mitotic inhibitor methylazoxymethanol acetate (MAM). Based on stereological principles and systematic sampling techniques, volumetric data from pre-selected regions of the pig brain was obtained using Cavalieri's principles and point-counting. Secondarily, estimates of total hemispheric neocortical cell numbers were obtained from pre-selected groups to test the potential effect of MAM on neuron number. No significant differences were observed in volume of the pre-selected regions of MAM intoxicated pigs nor in estimates of total neocortical neuron number.
authors.affiliation: Research Laboratory for Stereology and Neuroscience, University Hospital Copenhagen, Bispebjerg, Denmark. forsklab@bbh.hosp.dk
authors.forename: J
authors.initials: J
authors.lastname: Jelsing
authors.forename: A K
authors.initials: AK
authors.lastname: Olsen
authors.forename: P
authors.initials: P
authors.lastname: Cumming
authors.forename: A
authors.initials: A
authors.lastname: Gjedde
authors.forename: A K
authors.initials: AK
authors.lastname: Hansen
authors.forename: S
authors.initials: S
authors.lastname: Arnfred
authors.forename: R
authors.initials: R
authors.lastname: Hemmingsen
authors.forename: B
authors.initials: B
authors.lastname: Pakkenberg
mesh_terms: D000465:Algorithms; D019412:Anatomy, Cross-Sectional / Q000379:methods*; D000818:Animals; D001921:Brain / Q000002:abnormalities* / Q000187:drug effects / Q000473:pathology*; D002452:Cell Count / Q000379:methods; D004195:Disease Models, Animal; D005260:Female; D008746:Methylazoxymethanol Acetate / Q000031:analogs & derivatives*; D009421:Nervous System Malformations / Q000139:chemically induced / Q000175:diagnosis*; D010865:Pilot Projects; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D013552:Swine; D013556:Swine, Miniature; D013723:Teratogens
chemical_list: D013723:Teratogens; D008746:Methylazoxymethanol Acetate; C030667:methylazoxymethanol