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Schmidt AR, Inserra PIF, Giacchino M, Ferraris S, Lange F, Figueredo RV, Halperin J, Vitullo AD, Dorfman VB. Neurovascular description in the South American plains vizcacha, Lagostomus maximus (Chinchilloidea, Caviomorpha). A study involving evolutionarily related species of Caviomorpha and Muroidea. Anat Rec (Hoboken) 2024; 307:658-668. [PMID: 38328879 DOI: 10.1002/ar.25318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 02/09/2024]
Abstract
Oxygenated blood is required for the adequate metabolic activity of the brain. This is supplied by the circle of Willis (CoW) and the vertebrobasilar and carotid systems. The CoW ensures blood flow in case of arterial stenosis or occlusion. Different animal models have been explored for the CoW morphological and functional study. This work aims to characterize the vascular architecture of the CoW of the plains vizcacha, Lagostomus maximus (Suborder: Hystricomorpha), and to compare it with evolutionarily related species of Caviomorpha and Muroidea. The blood supply in adult plains vizcachas was studied using latex cerebrovascular casts and angiography. A caudo-rostral flow direction was determined, beginning in the spinal and vertebral arteries and converging in the basilar artery which bifurcates in the carotid-basilar communication in the caudal communicating arteries. In the first third of its course, the caudal cerebral arteries project laterally, and the middle and rostral cerebral arteries bifurcate from their rostral terminal segment, supplying the temporo-parietal and frontal cortex. The CoW architecture is mainly conserved between rodent species. Likewise, the small neurovascular variations observed could be considered phylogenetic morphological variations more than evolutionary adaptations. The absence of the rostral communicating artery that generates the rostral open architecture of the CoW in the vizcacha as in the other analyzed species, supports the need for a revision of the CoW classical function as a security system. Finally, this work supports the importance of expanding our understanding of brain anatomy among species, which may contribute to a better understanding of functional neuroanatomy.
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Affiliation(s)
- Alejandro Raúl Schmidt
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Pablo Ignacio Felipe Inserra
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Mariela Giacchino
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
| | - Sergio Ferraris
- Centro de Ciencias Veterinarias (CCV), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernando Lange
- Centro de Ciencias Veterinarias (CCV), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ramiro Vidal Figueredo
- Facultad de ciencias veterinarias, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Julia Halperin
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Alfredo Daniel Vitullo
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Verónica Berta Dorfman
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
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Kuchinka J. Morphometry and Variability of the Brain Arterial Circle in Chinchilla (Chinchilla laniger, Molina). Anat Rec (Hoboken) 2017; 300:1472-1480. [PMID: 28181413 DOI: 10.1002/ar.23566] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 04/02/2016] [Accepted: 04/26/2016] [Indexed: 11/09/2022]
Abstract
Arterial circles of brains from 70 adult chinchillas were filled with synthetic latex. The arterial circle of the brain is formed as the result of vertebral arteries being merged into the basilar artery. Caudally, both vertebral arteries gave rise to the ventral spinal artery. The ventral spinal artery splits into tiny cerebellar vessels, the pontine and cochlear branches. Distally, the basilar artery ramified into two terminal branches that formed the arterial circle of brain, rostrally open in most cases (75%). The observed variability of the arterial circle of brain of chinchillas pertained to all elements of that circle. The greatest variability within the vessels of the circle of Willis in chinchillas was observed in 22 cases (31.4%) of internal ophthalmic arteries. In chinchillas, a trend toward slight variability within the arteries comprising the arterial circle of the brain was observed in 44 animals. This accounted for 62.8% of all cases. Only in three cases was the arterial circle of brain clearly symmetrical. At the same time, 23 animals (32.8%) revealed features of significant vascular variability within the brain base region. These consisted of disturbed geometry of the entire arterial circle, different levels of ramifications into individual arteries, as well as the number and diameter of arteries. No internal carotid arteries were observed in chinchillas apart from one atypical case in which the carotid artery extended unilaterally into the basilar artery. These investigations indicate on the significant variability of arterial circle in rodents. Anat Rec, 300:1472-1480, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Jacek Kuchinka
- Department of Comparative Anatomy, Institute of Biology, Jan Kochanowski University in Kielce, Kielce, Poland
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Brudnicki W, Kirkiłło-Stacewicz K, Skoczylas B, Nowicki W, Jabłoński R, Brudnicki A, Wach J. The Arteries of the Brain in Hare (Lepus europaeusPallas, 1778). Anat Rec (Hoboken) 2015; 298:1774-9. [DOI: 10.1002/ar.23176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 03/25/2015] [Accepted: 04/07/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Witold Brudnicki
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Krzysztof Kirkiłło-Stacewicz
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Benedykt Skoczylas
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Włodzimierz Nowicki
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Ryszard Jabłoński
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Adam Brudnicki
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
| | - Jan Wach
- Faculty of Animal Breeding and Biology, Department of Animal Morphology and Hunting; UTP University of Science and Technology; Bydgoszcz Poland
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Brudnicki W. Brain base arteries: pattern and variation in the European otter (Lutra lutra). Anat Histol Embryol 2012; 41:358-61. [PMID: 22414248 DOI: 10.1111/j.1439-0264.2012.01145.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 02/01/2012] [Indexed: 11/30/2022]
Abstract
The pattern and variation of the brain base arteries were investigated in 30 specimens of European otter. It was found that the vascular pattern in this species is similar to the vascular pattern found in other Carnivora. A very well-developed basilar artery, which was formed as a result of the anastomosis of equally well-developed vertebral arteries and the ventral spinal artery, was demonstrated to be characteristic of the species. Most of the variation in the pattern of origin concerned the origin of the middle cerebral arteries and labyrinthine arteries. In a single individual, a double middle cerebral artery was observed. Overall, the specimens demonstrated a clear regularity in the pattern of vessels in the base of the brain and a small range of variation.
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Affiliation(s)
- W Brudnicki
- Department of Animal Morphology and Hunting, Faculty of Animal Breeding and Biology, University of Technology and Life Sciences, ul. Bernardyńska 6, 85-029, Bydgoszcz, Poland.
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Szczurkowski A, Kuchinka J, Nowak E, Kuder T. Topography of arterial circle of the brain in Egyptian spiny mouse (Acomys cahirinus, Desmarest). Anat Histol Embryol 2007; 36:147-50. [PMID: 17371389 DOI: 10.1111/j.1439-0264.2006.00747.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Using stained acryl latex-injected techniques, the arterial circle of the brain in Acomys cahirinus Desmarest was studied. Results revealed an important individual variability of investigated structure. Three morphological variants were found: (1) the lack of typical arterial circle--opened in front and the back side, (2) partial opened at the back side, (3) completely closed arterial circle. This finding is opposed to many species of mammals, including rodents, and especially laboratory mouse. In our point of view, it seems to be a specific character.
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Affiliation(s)
- A Szczurkowski
- Department of Comparative Anatomy, Institute of Biology, Swietokrzyski University, 15 Swietokrzyska St., 25-406 Kielce, Poland.
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