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1

Morphometric changes in the corpus luteum of pregnant hypokinetic rats

100%
Kujawa M., Ziemba H., Baran W.
Folia Morphologica
|
2004
|
tom 63
|
nr 4
The aim of this work was to study the influence of hypokinetic conditions on the ovary and corpus luteum of pregnant rats. The rats were kept in hypokinetic conditions for 5 days in the period between the 13th and 18th days of pregnancy. A three-dimensional reconstruction of the ovary and corpora lutea and also a stereological evaluation of the luteal cells and their nuclei were performed using serially cut material. Hypokinesia caused a decrease in the mean volume of the ovary and individual corpus luteum and in the total volume of corpora lutea per ovary in immobilised animals as compared to the control. Moreover, a decrease was observed in the mean number of luteal cells and an increase in the size of these cells, as well as in the mean volume fraction of their nuclei. These results indicate that immobilisation of pregnant rats for 5 days considerably influences the morphology of the corpus luteum and luteal cells.
2

Morphometric changes of the central nervous system of oligomelic Tegenaria atrica spiders

84%
Napiorkowska T., Napiorkowski P., Templin J.
Folia Biologica
|
2016
|
tom 64
|
nr 2
3
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Morphometric and performance changes in catchment of mesotrophic lake Piaseczno in 1839-1977 on the basis of historical and current topographic cartographic materials

84%
Serafin A.
Acta Agrophysica
|
2008
|
tom 11
|
nr 1[156]
4

A histological and immunohistochemical study of beta cells in streptozotocin diabetic rats treated with caffeine

67%
Abunasef S. K., Amin H. A., Abdel-Hamid G. A.
Folia Histochemica et Cytobiologica
|
2014
|
tom 52
|
nr 1
5

Formaldehyde exposure induces histopathological and morphometric changes in the rat testis

67%
Golalipour M. J., Azarhoush R., Ghafari S., Gharravi A. M., Fazeli S. A., Davarian A.
Folia Morphologica
|
2007
|
tom 66
|
nr 3
Formaldehyde is a chemical which is traditionally used for fixing cadavers and routine histopathology techniques. It is vaporised during the dissection and practical study of a cadaver. Previous studies have shown that this vapour may cause clinical symptoms such as throat, eye, skin and nasal irritation. This study was designed to determine the histopathology and morphometrics of the rat testis when all the experimental animals were exposed to formaldehyde for 18 weeks. The study was performed in 2004 on 28 albino Wistar rats of 6–7 postnatal weeks. The rats were divided into three case groups (E1: 4 h/d, 4 d/w; E2: 2 h/d, 4 d/w; E3: 2 h/d, 2 d/w) and one control group. The testes specimens were sectioned at 5 µm and stained with the haematoxylin and eosin staining technique for histological and morphometrical studies. We found a severe decrease in germ cells associated with spermatogenesis arrest in the E1 group. A decrease in germ cells and a thickening of the basal membrane of the seminiferous tubules were seen in E2. Displacement of Sertoli and germinal cells were also found in the E3 group. The mean seminiferous tubular diameter and seminiferous epithelial height in the experimental groups were decreased in comparison with the control group and the differences were statistically significant (p < 0.05). The findings of this study revealed that chronic formaldehyde exposure can cause histopathological and morphometric changes to the seminiferous epithelium in rats and that these changes depend on the duration of the formaldehyde exposure.
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