Histological evaluation of rat larynx in experimental polycystic ovary syndrome model

Abstract

This study aimed at studying the histopathological effects of hyperandrogenemia and estrogen deficiency on larynx mucosa in experimentally designed polycystic ovary syndrome of female rats. Two groups of experimental polycystic ovary syndrome model were composed in healthy female rats by per oral letrozole administration of for 21 and 42 days. Also a control group which only took vehicle (saline) for 42 days was designed. Laryngeal mucosa and ovaries of all animals were examined histopathologically by light microscopy and the serum hormone levels were analyzed using a solid-phase, two-site chemiluminescent enzyme immunometric assay. Statistically significant edema, vascular engorgement, inflammation, cilia loss and differentiation of goblet cell distribution were observed when the control group and study groups were compared (p < 0.01). In serum hormonal analysis there was a significant increase in levels of androgens and decrease in levels of estrogens. In addition, polycystic appearance of ovaries in letrozole-administered groups and normal appearance of ovaries in control group have been proven histopathologically. Polycystic ovary syndrome which causes estrogen deficiency and hyperandrogenemia in fertile ages resulted in histopathological changes in laryngeal mucosa.

Pathological study of otitis media with effusion after treatment with intranasal pulmonary surfactant

“…The pathologist ranked the morphology of cilia in the ET specimens to create a semiquantitative histology scoring: grade 0 indicates cilia are completely normal; grade 1, cilia are arranged mildly irregularly; grade 2, cilia are coalescing and swelling or partly lost; grade 3, cilia are largely or totally missing …”