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Can formaldehyde exposure induce histopathologic and morphometric changes on rat kidney? / ¿La exposición al formaldehído puede inducir cambios histopatológicos y morfométricos sobre el riñón de rata?
Golalipour, Mohammad Jafar; Azarhoush, Ramin; Ghafari, Soraya; Davarian, Ali; Fazeli, Sayyed Amir hossien.
  • Golalipour, Mohammad Jafar; University of Medical Sciences. Department of Histology and Embryology. Gorgan. IR
  • Azarhoush, Ramin; Gorgan University of Medical Sciences. Department of Pathology. Gorgan. IR
  • Ghafari, Soraya; University of Medical Sciences. Department of Histology and Embryology. Gorgan. IR
  • Davarian, Ali; University of Medical Sciences. Department of Histology and Embryology. Gorgan. IR
  • Fazeli, Sayyed Amir hossien; University of Medical Sciences. Department of Histology and Embryology. Gorgan. IR
Int. j. morphol ; 27(4): 1195-1200, dic. 2009. ilus
Article in English | LILACS | ID: lil-582072
ABSTRACT
Formaldehyde is used traditionally for fixing the cadaver, and vaporized during dissection and practical studying on cadaver. This study was designed to determine the histopathologic and morphometric changes of rat kidney while all of the experiments were exposed to formaldehyde for 18 weeks. 28 male albino Wistar rats were divided into the following three experimental groups (E1 2hrs/d, 2d/w; E2 2hrs/d, 4d/w; E3 4hrs/d, 4d/w) and one control group (C). when the exposure period was expired the animals were anaesthetized with chloroform. After cervical dislocation, the abdomen was dissected and the kidneys were taken. The kidney specimens were sectioned and stained with Haematoxylin and Eosin technique for histologic and morphometric study. Data were obtained from an Olympus light microscope and the analyzed with spss (version 11.5) and ANOVA test. In all histopathology sections of groups E1, E2 and E3, these similar changes were seen mild glumerolar congestion, focal congestion, and vacuolar degeneration of tubular cells. There were no evidences of inflammatory cells infiltration or fibrotic changes of interstitial tissue. Only mild, non-specific congestion was seen in cortical vessels. Also there were not any abnormalities in the staining of nucleus and cytoplasm. According to Morphometric study, Mean +/- SD of glomerulus's area in control, E1, E2 and E3 group were 10802.66 +/- 1038.18, 10759.50 +/- 1971.88, 10434.73 +/- 1763.76 and 10077.64 +/- 2068.78 micrometer, respectively. Mean +/- SD inner proximal tubule diameter in control, E1, E2 and E3 group were 16.16 +/- 2.49, 16.92 +/- 2.90, 16.31 +/-2.79 and15.66 +/-4.11 µm, respectively. Mean +/- SD of inner distal tubule diameter in control, E1, E2 and E3 group were 15.96 +/- 4.47, 16.20 +/- 1.66, 16.96 +/- 1.63 and17.45 +/- 3.26 µm, respectively. These differences were not significant between cases and control. This study showed that formaldehyde inhalation in 1.5 ppm can not make specific...
RESUMEN
El formaldehído se utiliza tradicionalmente para la fijación de cadáveres y vaporiza durante la disección y los estudios prácticos en el cadáver. Este estudio fue diseñado para determinar los cambios histopatológicos y morfométricos de riñones de ratas expuestos al formaldehído, durante 18 semanas. 28 ratas albinas Wistar se dividieron en tres grupos experimentales (E1 2 h/d, 2d/s, E2 2 h/d, 4d/s; E3 4 h/d, 4d/s) y un grupo control (C). Cuando el período de exposición se cumplió los animales fueron anestesiados con cloroformo. Después de la dislocación cervical, el abdomen fue disecado y se obtuvieron los riñones. Los especímenes de riñon fueron seccionados y teñidos con técnica hematoxilina y eosina para el estudio histológico y morfométrico. Los datos fueron obtenidos con un microscopio óptico Olympus, el análisis con el software SPSS (versión 11.5) y la prueba de ANOVA. En todas las secciones histopatológicas de los grupos E1, E2 y E3, se observaron cambios similares congestión glumerular leve, congestión focal y degeneración vacuolar de las células tubulares. No hubo evidencias de la infiltración de células inflamatorias o cambios de tejido fibrótico intersticial. Sólo una leve congestión no específica fue observada en vasos corticales. Además no hubo anormalidad en la tinción del núcleo y el citoplasma. De acuerdo al estudio morfométrico, la Media +/- DS del área glomerular en los grupos control, E1, E2 y E3 fue 10802,66 +/- 1038,18, 10759,50 +/- 1971,88, 10434,73 +/-1763,76 y 10077,64 +/- 2068,78 µm, respectivamente. La Media +/- DS del diámetro interno del túbulo proximal en los grupos control, E1, E2 y E3 fueron 16,16 +/- 2,49, 16,92 +/- 2,90, 16,31 +/- 2,79 y 15,66 +/- 4,11 µm, respectivamente. La Media +/- SD del diámetro interno de los túbulos distales en los grupos control, E1, E2 y E3 fueron 15,96 +/- 4,47, 16,20 +/- 1,66, 16,96 +/- 1,63 y 17,45 +/- 3,26 µm, respectivamente. Estas diferencias no fueron significativas entre los casos...
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Full text: Available Index: LILACS (Americas) Main subject: Fixatives / Formaldehyde / Kidney Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2009 Type: Article Affiliation country: Argentina / Iran Institution/Affiliation country: Gorgan University of Medical Sciences/IR / University of Medical Sciences/IR

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Full text: Available Index: LILACS (Americas) Main subject: Fixatives / Formaldehyde / Kidney Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2009 Type: Article Affiliation country: Argentina / Iran Institution/Affiliation country: Gorgan University of Medical Sciences/IR / University of Medical Sciences/IR