Comparative histomorphological study of adrenal gland in different age of sheep and goat

Editorial

Authors

1 Associated Professor of Veterinary Faculty of Ferdowsi University of Mashhad

2 Associated Professor of Veterinary Faculty of Shahrekord University

3 Graduated from the Faculty of Veterinary Medicine,Shahrekord University

Abstract

Ninety six pairs of adrenal glands from Lori – Bakhtiari sheep and goat, aged 6 month to 1 year and 1 – 1.5 year from borujen abattoir were collected. After collecting the glands and weighting them, some parameters such as: length, wide and thickness of left and right side by caliper device were measured. In histological studies, after tissue preparation and staining with H&E, cortical zones and medullae of glands were recognized and the size of zones with micrometry method were determined. At result, data between left and right adrenal glands and two ages were analyzed and compared by tstudent test. There was a significant difference between dimensions of left and right adrenal glands. The mean weight and length of left adrenal gland was greater than right in two animals. Also in aged 6 month to 1 year there was a significant difference between mean length and width of right adrenal glands in two animals. The thickness two and width of left adrenal gland in sheep were larger than goat and the difference was significant (P<0.05).Histological studies revealed that, there was a significant difference in size of capsule, medulla and these parameters in sheep were greater than goat. By comparing the other parameters between two aged in two animals, there was a significant difference in cortex of left adrenal gland and zona fasiculata in aged 1- 1.5 years in sheep was larger than aged 6month to 1 years in goat.

1- Bacha, W and Bacha, L. (2000) Color Atlas of Veterinary Histology. Second edition. Blackwell Publishing. PP:177 – 180.##
2- Banks, W.J. (1993) Applied veterinary histology. 3rd edition .Mosby – Year Book. Inc. Missouri. PP:416- 428.##
3- Bragulla, H., Hirschberg, R. M., Schlotfeldt, U., Stede, M. and Budras, K.D.  (2004) On the structure of the adrenal gland of the common seal (Phoca vitulina vitulina). Anat. Histol. Embryol. 33, 263–272.##
4- Clark, L. S., Pfeiffer, D. C. and Cowan, D. F. (2005) Morphology and histology of the Atlantic bottlenose dolphin (Tursiops truncatus) adrenal gland with emphasis on the medulla. Anat. Histol. Embryol. 34, 132–140.##
5- Clark, L. S., Cowan, D. F. and Pfeiffer, D. C. (2008) A morphological and histological examination of the pan-tropical spotted dolphin (Stenella attenuata) and the spinner dolphin (Stenella longirostris) adrenal gland. Anat. Histol. Embryol. 37, 153–159.##
6- Cunninghum, J.G and Bradley, G.K. (2007) Textbook of Veterinary Physiology, 4th edn. W.B. Saunders Co.##
7- Dellmann, H.D. (1993) Endocrine system. In: Textbook of Veterinary Histology, 4th edn (H.-D. Dellmann ed). Philadelphia: Lea and Fabiger, pp. 270–284.##
8- Eurell, J.A. and  Frappier, B.L. (2006) Dellman’s Textbook of Veterinary Histology. 6th edn, Blackwell Publishing Ltd. PP: 280 282.##
9 -  Hoerauf.A.and Reusch. C. (1999) Ultrasonographic evaluation of the adrenal glands in six dogs with hypoadrenocorticism. J Am Anim Hosp Assoc. 35(3): 214-218. ##
10-  Konig, H. E., and Liebich, H. G (2004) Veterinary Anatomy of Domestic Animals: Textbook and Color Atlas,  1st edn, Schattauer Company, Stuttgart, Germany.##
11- Lam. K. Y., Chan, A. C. (2001) Morphological analysis of adrenal glands: a prospective analysis. Endocr Pathol. 12(1) : 33- 38.##
12- LeCouter, J, Kowalski J, Foster J, Hass P, Zhang Z, Dillard-Telm L, Frantz G, Rangell L, DeGuzman L, Keller GA, Peale F, Gurney A, Hillan KJ, and Ferrara N. (2001); Identification of an angiogenic mitogen selective for endocrine gland endothelium. Nature 412: 877-884. ##
13- Lesson , T.S., Lesson , C.R and Paparo , A.A. (1988) Text and atlas of histology .W . B. Saunders Company London.##
14- Neuwirth, L., Collins, B., Calderwood-mays, M. and Tran, T. (1997) Adrenal ultrasonography correlated with histopathology in ferrets. Vet Radiol Ultrasound. 38: 69 – 74.##
15- Raviola, E. (1994) Adrenal gland. In: Bloom and Fawcett, a Textbook of Histology (D. W. Fawcett ed). New York, London: Chapman & Hall, pp. 503–515.##
16- Simpson, J. G. and Gardner, M. B. (1972) Comparative microscopic anatomy of selected marine mammals. In: Mammals of the Sea – Biology and Medicine (S. H. Ridgway ed). Springfield: Charles C. Thomas Publisher, pp. 298–413.##
17- Vittet, D., Ciais, D., Keramidas, M., De Fraipont, F and Feige, J.J. (2000) Paracrine control of the adult adrenal cortex vasculature by vascular endothelial growth factor. Endocr Res. 26: 843-852 . ##
18- Vuković, S.,  Lucić, H., Živković, A., Đuras Gomerčić, M., Gomerčić, T. and Galov, A.(2010) Histological structure of the adrenal gland of the bottlenose dolphin (Tursiops truncatus) and the striped dolphin (Stenella coeruleoalba) from the Adriatic Sea. Anat. Histol. Embryol.39,  59–66.##