Plasma concentration and uterine and ovarian expressions of insulin-like growth factor-2 in dogs with cystic endometrial hyperplasia-pyometra

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Gültiken N., Yarım M., Yarım G. F., Sözmen M., ANADOL E., FINDIK M.

Acta Veterinaria Hungarica, vol.69, no.1, pp.73-79, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 69 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.1556/004.2021.00013
  • Journal Name: Acta Veterinaria Hungarica
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.73-79
  • Keywords: Cystic endometrial hyperplasia-pyometra, Dog, Insulin-like growth factor-2, Ovary, Uterus
  • Ondokuz Mayıs University Affiliated: Yes


The objective of this study was to investigate the plasma concentrations of insulin-like growth factor-2 (IGF-2) as well as its expression in the uterus and ovary of healthy dogs and those with cystic endometrial hyperplasia (CEH)-pyometra complex. Group 1 (n 5 10) included bitches with open cervix pyometra, while Group 2 (n 5 7) consisted of clinically healthy bitches in dioestrus. The number of IGF-2 immunopositive interstitial cells was significantly higher in Group 1, whereas in Group 2 there were only two cases in which a few cells were IGF-2 immunopositive. IGF-2 immunopositivity was observed in the endometrial glandular epithelium in both groups. Additionally, interstitial fibroblasts and macrophages in the endometrium were also positive in Group 1. The concentration of plasma IGF-2 was higher in Group 1 than in Group 2 (P < 0.05). The concentration was positively correlated with IGF-2 expression in the endometrial glands (r 5 0.926; P < 0.001) in Group 1. However, a negative correlation was present between plasma IGF-2 concentration and IGF-2 expression in the interstitial endocrine cells of the ovary in Group 1 (r 5 -0.652; P < 0.05). The results suggest that IGF-2 plays an important role during the inflammatory process occurring in bitches with CEH-pyometra complex as well as in the endometrium of healthy bitches in dioestrus.