The equine stomach consists of two separate non-glandular and glandular sections. Despite the incidence of most lesions in the non-glandular region, both stomach parts are prone to lesions. In this study, 41 hybrid-native horses, including 24 stallions and 17 mares, were examined over five years. In total, 27 horses (65.85%) that were sampled had lesions, including erosion, granuloma, or both on the glandular region of the stomach. Occurrence of gastric erosive and granulomatous lesions had no significant relationship with the age and gender of horses or the sampling season (P>0.05). Moreover, parasites Gastrophilus and Habronema were mainly the primary cause of gastric erosive and granulomatous lesions respectively. In Periodic Acid Schiff (PAS) stained tissue sections, the inflammation severity in granulomatous lesions was higher and statistically significant, compared to erosive lesions (P<0.05). Immunohistochemistry revealed negative expression of glial cell line-derived neurotrophic factor in gastric lesions, while its expression was relatively positive in normal stomachs. Interestingly, based on counting cells and evaluation of expression intensity, Chromogranin A expression in neuroendocrine glandular cells had a significant relationship with the increase of severity and depth of the lesions (P<0.05). The results indicated that the glial cell line-derived neurotrophic factor does not affect the pathogenesis of equine gastric lesions while confirming the role of increment of gastric neuroendocrine cells in lesion progress. Furthermore, the increased expression of Ki67 and p53 proteins in granulomatous lesions, compared to other groups, may be associated with the proliferation and control process of the cells in measures regarding the formation and healing of the lesion. |
- Martineau H, Thompson H, Taylor D. Pathology of gastritis and gastric ulceration in the horse. Part 2: a scoring system. Equine Vet J. 2009;41(7):646-51.
- Ali MA, Nyberg F, Chandranath SI, Dhanasekaran S, Tariq S, Petroianu G, et al. Distribution of neuroendocrine cells in the small and large intestines of the one-humped camel (Camelus dromedarius). Neuropeptides. 2007;41(5):293-9.
- Maruccio L, D'Angelo L, de Girolamo P, Lucini C, Castaldo L. GDNF and GFRalpha co-receptor family in the developing feline gut. Ann Anat. 2014;196(5):296-302.
- Glinicki P, Jeske W. Chromogranin A (CgA)—the influence of various factors in vivo and in vitro, and existing disorders on it’s concentration in blood. Endokrynologia Polska. 2011;62(I):25-8.
- Morales-Fuentes GA, Zarate-Osorno A, Quinonez-Urrego EE, Antonio-Manrique M, Martinez-Garcia CL, Figueroa-Barojas P, et al. [p53 expression in the gastric mucosa of patients infected with Helicobacter pylori]. Rev Gastroenterol Mex. 2013;78(1):12-20.
- Ohkura Y, Furihata T, Kawamata H, Tabuchi M, Kubota K, Terano A, et al. Evaluation of cell proliferation and apoptosis in Helicobacter pylori gastritis using an image analysis processor. Gastric Cancer. 2003;6(1):49-54.
- Cooney KA, Chappell JR, Callan RJ, Connally BA. Euthanasia Techniques. Veterinary Euthanasia Techniques. 2012. p. 73-168.
- Leary S, Underwood W, Anthony R, Cartner S, Grandin T. AVMA guidelines for the euthanasia of animals: American Veterinary Medical Association. 2020.
- Amniattalab A, Rezazadeh A. Multiple omental hemangiomas in a Himalayan cat: Incidental finding in a laparotomy. Vet Glas. 2022;76(1):65-75.
- Rodrigues NL, Dore M, Doucet MY. Expression of cyclooxygenase isoforms in ulcerated tissues of the nonglandular portion of the stomach in horses. Am J Vet Res. 2010;71(5):592-6.
- Rezazadeh F, Gharehaghajlou Y. Endoscopic finding of gastric ulcer in rural horse and relation with Gasterophilus spp. Iran J Vet Med. 2020;14(1).
- Mokhber Dezfouli M, Hassanpour A, Nadalian MG, Seifi H. Gastric ulceration in Persian Arab horses in Iran: frequency, haematology and biochemistry. Iran J Vet Res. 2009;10(2):146-51.
- Hassanpour A, Nadalian M, Mokhber-Dezfoli M, Frotan H. Study on the prevalence of gastric ulcer diagnosis in the Caspian Miniature Horse by endoscopy. J Vet Res. 2007;62(5):227-33.
- Andrews FM, Reinemeyer CR, McCracken MD, Blackford JT, Nadeau JA, Saabye L, et al. Comparison of endoscopic, necropsy and histology scoring of equine gastric ulcers. Equine Vet J. 2002;34(5):475-8.
- Amininajafi F, Mehrara MR, Hosseini A, Fattahi R, Taghizadeh M, Hasanzadeh S. Histopathological features of cutaneous and gastric habronemiasis in horse. J Parasit Dis. 2016;40(3):945-7.
- Nosrat CA, Tomac A, Lindqvist E, Lindskog S, Humpel C, Stromberg I, et al. Cellular expression of GDNF mRNA suggests multiple functions inside and outside the nervous system. Cell Tissue Res. 1996;286(2):191-207.
- Sariola H, Saarma M. Novel functions and signalling pathways for GDNF. J Cell Sci. 2003;116(19):3855-62.
- Kitamura N, Yamada J, Calingasan NY, Yamashita T. Immunocytochemical distribution of endocrine cells in the gastrointestinal tract of the horse. Equine Vet J. 1984;16(2):103-7.
- Janardhan KS, Rebolloso Y, Hurlburt G, Olson D, Lyght O, Clayton NP, et al. Histopathological and Immunohistochemical Characterization of Methyl Eugenol-induced Nonneoplastic and Neoplastic Neuroendocrine Cell Lesions in Glandular Stomach of Rats. Toxicol Pathol. 2015;43(5):681-93.
- Kazumori H, Ishihara S, Fukuda R, Kinoshita Y. Time-course changes of ECL cell markers in acetic acid-induced gastric ulcers in rats. Aliment Pharmacol Ther. 2002;16(2):10-9.
- Tropea F, Baldari S, Restifo G, Fiorillo MT, Surace P, Herberg A. Evaluation of chromogranin A expression in patients with non-neuroendocrine tumours. Clin Drug Investig. 2006;26(12):715-22.
- Jian H, Huaide H, Qingbi P, Zhijian Z, Xinru Y. Immunohistochemical study on S100 protein-positive dendritic cells in patients with gastric carcinoma. Chin J Cancer Res. 1990;2(2):54-8.
- Berloco P, Russo F, Cariola F, Gentile M, Giorgio P, Caruso ML, et al. Low presence of p53 abnormalities in H pylori-infected gastric mucosa and in gastric adenocarcinoma. J Gastroenterol. 2003;38(1):28-36.
- Antoniades HN, Galanopoulos T, Neville-Golden J, Kiritsy CP, Lynch SE. p53 expression during normal tissue regeneration in response to acute cutaneous injury in swine. J Clin Invest. 1994;93(5):2206-14.
- Shiotani A, Iishi H, Ishiguro S, Tatsuta M, Nakae Y, Merchant JL. Epithelial cell turnover in relation to ongoing damage of the gastric mucosa in patients with early gastric cancer: increase of cell proliferation in paramalignant lesions. J Gastroenterol. 2005;40(4):337-44.
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