Heterogeneity in the columnar number of neurons in different neocortical areas in the rat.

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Fältnamn	Indikatorer	Metadata
000		02871naa a2200421 4500
001		oai:gup.ub.gu.se/248478
003		SwePub
008		240528s1996 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://gup.ub.gu.se/publication/2484782 URI
040		a (SwePub)gu
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Skoglund, Thomas,d 1969u Gothenburg University,Göteborgs universitet,Institutionen för anatomi och cellbiologi,Institute of Anatomy and Cell Biology4 aut0 (Swepub:gu)xskoth
245	1 0	a Heterogeneity in the columnar number of neurons in different neocortical areas in the rat.
264	1	c 1996
520		a We have investigated the number of neurons in three neocortical areas of the rat brain. Our results challenge the uniformity concept proposed by Rockel et al. [Brain, 103 (1980) 221-244]. Area Fr1, HL and Oc2 (primary motor, primary somatosensory and secondary visual cortex) from Sprague-Dawley rats were examined. The brains were glutaraldehyde fixed, sectioned in 50 mu m thick sagittal slices and stained in Richardson's solution. The counting was carried out using a computerized system based on the optical disector. The cortical thickness was measured to be 1.9 mm, 1.9 mm, and 1.4 mm in area Fr1, HL, and Oc2, respectively. The number of neurons under 1 mm2 cortical surface was calculated to be 91 100 in Fr1, 133 500 in HL and 106 100 in Oc2. The number of neurons in a volume of tissue 30 x 25 mu m through the depth of the cortex was calculated to be 68 in Fr1, 100 in HL and 80 in Oc2. The density of neurons was calculated to be 48 500 neurons/mm3 in Fr1, 69 400 neurons/mm3 in HL and 76,900 neurons/mm3 in Oc2. There were significant (P < 0.01) differences between all areas regarding both the number of neurons under a certain area of surface as well as the neuron density. The results indicate that there is no basic uniformity in the number of neurons under a certain area of cortical surface.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Neurovetenskaper0 (SwePub)301052 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Neurosciences0 (SwePub)301052 hsv//eng
653		a Animals
653		a Cell Count
653		a Cell Size
653		a Cerebral Cortex
653		a cytology
653		a Image Processing
653		a Computer-Assisted
653		a Neurons
653		a cytology
653		a Population
653		a Rats
653		a Rats
653		a Sprague-Dawley
700	1	a Pascher, R4 aut
700	1	a Berthold, C H4 aut
710	2	a Göteborgs universitetb Institutionen för anatomi och cellbiologi4 org
773	0	t Neuroscience lettersg 208:2, s. 97-100q 208:2<97-100x 0304-3940
856	4 8	u https://gup.ub.gu.se/publication/248478

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Av författaren/redakt...: Skoglund, Thomas ...; Pascher, R; Berthold, C H

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