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1

Estimation of Purkinje cell quantification and volumetry in the cerebellum using a stereological technique

100%
Akosman M. S., Gocmen-Mas N., Karabekir H. S.
Folia Morphologica
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2011
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tom 70
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nr 4
Systematic sampling using the Cavalier’s principle provides accurate, efficient, cheap, and simple quantitative estimates of objects within neuroanatomical structures like the cerebellum. We identified and isolated the Purkinje cell layer and used this information to extrapolate the stereological technique to estimate the total number of Purkinje cells and volume on light microscope in rabbits’ cerebella. Volumes of the cell populations in the cerebellum have not been estimated previously. Using this method, we counted the Purkinje cells in the two right and three left hemicerebella of five male healthy rabbits and found the total number of Purkinje cells to have a mean of 671,597. The mean volume of the Purkinje cell was estimated at 2207 µm³ for the entire cerebella. The contribution of the stereological method to cell quantification and volumetry was emphasised by the neuroanatomical experimental animal study. The method proved to be an excellent tool for evaluating the Purkinje cell numbers and volumes in the rabbits. The data may also support the significance of considering anatomical data when evaluating pathological changes in cerebella. (Folia Morphol 2011; 70, 4: 240–244)
2

Volumetric evaluation of hemicerebellar changes in migraine patients without aura

76%
Gocmen-Mas N., Kusbeci O. Y., Karabekir H. S., Ertekin T., Yucel A., Yazici A. C.
Folia Morphologica
|
2011
|
tom 70
|
nr 4
Brain balance changes have been recognised in migraine, but cerebellar function between or during attacks has been assessed only in a few studies. Previous studies have indicated that migraine affects cerebellar function. In the present study we aimed to evaluate the hemicerebellar volume changes of patients with migraine without aura (MWoA). Volumetric changes of cerebellar hemispheres were evaluated in terms of asymmetry using stereological methods on magnetic resonance images (MRI) retrospectively. Nineteen patients with MWoA and 18 age- and gender-matched control subjects were included in the study. MRIs were analysed by using the point-counting approach of stereological methods by Cavalier’s principle. There was no statistically significant cerebellar atrophy or hemicerebellar asymmetry between the MWoA and control subjects. There was no cerebellar atrophy or asymmetry between the MWoA and age-matched control group. The stereological evaluation of cerebellar asymmetry and atrophy in humans is important for both clinicians and anatomists. The technique is simple, inexpensive, and reliable. (Folia Morphol 2011; 70, 4: 235–239)
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