The ovarian and uterine arteries in the chinchilla (Chinchilla lanigera)

Cevik-Demirkana, A.; Ozdemira, V.; Demirkan, İbrahim

doi:10.4102/jsava.v81i1.97

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…The rabbit ovary was compact and elliptical in its outline, which hung laterally by the mesovarium, as previously described [ 42 ]. The right OA emanated before the left one from the abdominal aorta, which was verified in rabbits [ 43 ], and chinchilla [ 44 ]. Our finding asserted that the OA releases uterine, tubal, and ovarian branches, which was confirmed by Kigata and Shibata [ 45 ]; however, this is inconsistent with the finding of Milanović et al [ 43 ].…”

Section: Discussionmentioning

confidence: 98%

Ovarian, uterine, and luteal vascular perfusions during follicular and luteal phases in the adult cyclic female rabbits with special orientation to their histological detection of hormone receptor

et al. 2022

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Understanding the does reproductive hemodynamic changes during the estrous cycle is crucial for improving reproductive competence and fertility potential in this species. The objective of this study is to investigate the hemodynamic variations in ovarian (OA) and uterine (UA) arteries, histological and morphometric changes in ovarian and uterine tissues throughout the follicular (FP) and luteal (LP) phases in rabbits and determine estrogen (ER), progesterone (PR) receptors, and vascular endothelial growth factor (VEGF) distributions using immunohistochemistry.Fourteen adults pluriparous New Zealand rabbits were divided into rabbits at the FP (Day − 1; n = 7) and those at the LP (Day 9; n = 7). Animals were subjected to Doppler, hormonal (estrogen [E2], progesterone [P4], insulin-like growth factor [ILGF], and VEGF), histological, and immunohistochemical analyses. In LP, OA Doppler indices were significantly increased, whereas peak systolic velocity (PSV) was decreased compared with that in FP. UA Doppler indices were significantly decreased in the LP, whereas PSV was increased (P < 0.05). E2 levels were increased in the FP, whereas P4 levels were increased in the LP. The morphometric analysis of uterine tissues during the LP revealed an increase in the mean uterine endometrium length, endometrial connective tissue area percentage (%), endometrial glands number, myometrial area (%) and thickness. Furthermore, ovarian follicles and corpus luteum (CL) displayed strong positive immunoreactivity for ER, PR, and VEGF-A during both phases. The ovarian sections displayed a substantial (P < 0.05) increase in the area % of VEGF-A in the ovarian follicles during FP while in the CL during LP. Conversely, area percentage of VEGF-A immunoreactivity in the uterine luminal and glandular epithelia during the FP and LP revealed no differences. However, the number of VEGF-A–stained blood capillaries revealed an increase during LP than FP. In conclusion, this study demonstrated for the first time the changes in both ovarian and uterine arteries during two different phases of the rabbit cycle in relation to the histo-morphometric analysis and distribution of ER, PR, and VEGF-A, which regulate uterine functions that play a role in reproduction.

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Section: Discussionmentioning

confidence: 98%

Ovarian, uterine, and luteal vascular perfusions during follicular and luteal phases in the adult cyclic female rabbits with special orientation to their histological detection of hormone receptor

et al. 2022

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Nutritional deficiency and placenta calcification underlie constitutive, selective embryo loss in pregnant South American plains vizcacha, Lagostomus maximus (Rodentia, Caviomorpha)

et al. 2020

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Representation by Percentage of the Tunicae of the Large Arteries in Chinchillas

Martonos¹,

Dezdrobitu²,

Rus³

et al. 2015

BUASVMCN-VM

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Chinchilla, a small sized rodent, is taxonomically placed in the Mamalia class, Theria subclass, Eutheria clade, Rodentia order, Hystricomorpha suborder, Chinchilidae family, Chinchilla species. The arterial system of this species has few macroscopical descriptions and very fiew microscopical ones. AIMS AND OBJECTIVESThe present study proposed a representation by percentage of the tunics composing the arterial wall in the large arteries of the chinchilla. AbstractChinchilla, a small sized rodent, is taxonomically placed in the Mamalia class, Theria subclass, Eutheria clade, Rodentia order, Hystricomorpha suborder, Chinchilidae family, Chinchilla species. In the wild, it occupies a territory covering the states of Chile, Peru and Argentina, as well as the south region of Bolivia. The biologic material for out study consisted of 5 Chinchilla specimens processed to obtain histological samples.The staining protocol has very well underlined the trilamelar structure of the layers composing the arterial wall. The tunica intima comprises an endothelium, a basement membrane and a subendothelial layer. This tunic outlines the lumen of the arteries. The tunica media is formed by elastic fibers disposed on several circular layers and a certain number of smooth muscle cells in-between them. The external tunic or the tunica adventitia is made up of lax conjunctive tissue. The ratio between tunics of the arterial wall of the great arteries in Chinchillas changes according to the distance from the heart. While the aorta has a very poorly developed tunica adventitia, this layer represents 50% of the arterial wall in the subclavian and external iliac arteries.

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The ovarian and uterine arteries in the chinchilla (Chinchilla lanigera)

Cited by 4 publications

References 12 publications

Ovarian, uterine, and luteal vascular perfusions during follicular and luteal phases in the adult cyclic female rabbits with special orientation to their histological detection of hormone receptor

Ovarian, uterine, and luteal vascular perfusions during follicular and luteal phases in the adult cyclic female rabbits with special orientation to their histological detection of hormone receptor

Nutritional deficiency and placenta calcification underlie constitutive, selective embryo loss in pregnant South American plains vizcacha, Lagostomus maximus (Rodentia, Caviomorpha)

Representation by Percentage of the Tunicae of the Large Arteries in Chinchillas

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