Topography of Arterial Circle of the Brain in Egyptian Spiny Mouse (<i>Acomys cahirinus</i>, Desmarest)

Szczurkowski, Aleksander; Kuchinka, Jacek; Nowak, E.; Kuder, T

doi:10.1111/j.1439-0264.2006.00747.x

Cited by 20 publications

(18 citation statements)

References 11 publications

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“…Studies have been carried out in rats (Brown, 1966;Green, 1968), rats and mice (Firbas et al, 1973), mouse (Cook, 1965;Wiland, 1974;Szczurkowski et al, 2007), Guinea pigs (Ocal and Ozer, 1992), Guinea pigs and rabbits (Popesko et al, 1990), rabbits (Brehmer and Beleites, 1988), dogs (Miller et al, 1964), cats (McClure et al, 1973), porcupine (Aydin et al, 2005), Red squirrels (Aydin, 2008), Mongolian gerbils (Klachinka et al, 2008) and mole-rats . According to our knowledge there are no investigations on the circulus arteriosus cerebri of the ground squirrel (Spermophilus citellus) and this is the first study on this subject in ground squirrels.…”

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confidence: 99%

The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)

Aydin¹,

Yi̇lmaz²,

Özkan³

et al. 2009

Vet. Med. - Czech

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ABSTRACT:In this study, the circulus arteriosus cerebri of the ground squirrel (Spermophilus citellus) was investigated. Five ground squirrels were used as subjects. Coloured latex was injected from the left ventriculi of the hearts of all the squirrels. When the vertebral arteries of two of the animals were ligatured, it was found that there was no internal carotid artery. After careful dissection, the circulus arteriosus cerebri (the circle of Willis) was investigated. The right and left vertebral arteries gave rise to the caudal cerebellar artery before forming the basilar artery. The basilar artery formed the caudal communicans artery that was the caudal part of the circulus arteriosus cerebri on the pontocrural groove (sulcus pontocruralis). The caudal, medial, rostral cerebellar, the common root formed by the caudal cerebral and choroid arteries, the rostral choroid, the rostral and medial cerebral arteries arose from the vertebral, basilar and caudal communicans arteries and dispersed to the cerebrum and cerebellum from caudal to cranial. The termination and the branches of the rostral cerebral artery in ground squirrels varied. It was observed that the internal carotid artery does not supply the circulus arteriosus cerebri in ground squirrels. Keywords: morphology; circulus arteriosus cerebri; brain; ground squirrel (Spermophilus citellus)The rodents (Rodentia) which are the widest order of placental mammals, comprise more than half of all described mammals. The ground squirrels (Spermophilus citellus) are representatives of the Sciuridae family that constitutes a group of the order Rodentia (Karol, 1963;Weichert, 1970;Kuru, 1987;Demirsoy, 1992).There have been many investigations on the vascularisation of the arteries which supply blood to the brain. Studies have been carried out in rats (Brown, 1966;Green, 1968), rats and mice (Firbas et al., 1973), mouse (Cook, 1965;Wiland, 1974;Szczurkowski et al., 2007), Guinea pigs (Ocal and Ozer, 1992), Guinea pigs and rabbits (Popesko et al., 1990), rabbits (Brehmer and Beleites, 1988), dogs (Miller et al., 1964), cats (McClure et al., 1973), porcupine (Aydin et al., 2005), Red squirrels (Aydin, 2008), Mongolian gerbils (Klachinka et al., 2008) and mole-rats . According to our knowledge there are no investigations on the circulus arteriosus cerebri of the ground squirrel (Spermophilus citellus) and this is the first study on this subject in ground squirrels.The purpose of this study was to document arteries that constitute the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus). MATERIAL AND METHODSFive adult ground squirrels, trapped by farmers, were used. After they were anaesthetized with penthathol (6 ml/kg), the cavum thoracis of all animals were opened and a 5 mm diameter, 7 cm long plastic pipe was placed into the left cardiac ventricle. The arterial blood was drained and red coloured latex was injected into the left ventriculi through this pipe. To see whether the internal carotid artery existed, the right and left vertebral arter...

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confidence: 99%

The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)

Aydin¹,

Yi̇lmaz²,

Özkan³

et al. 2009

Vet. Med. - Czech

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“…The first form represents the single, closed agglomeration of neurocytes observed in man (Żabotyński 1953), monkeys (Ruskell 1970, Sadowski et al 1970, rodents (Kuder 1983, 1985, 1990a, 1990b, Kuder and Szczurkowski 1996, Szczurkowski et al 2002 and hedgehog (Gienc et al 1990). The second form found in ruminants and boar represents the ganglion consisting of some small cell aggregations connected with nerve fibres (Godinho 1968, Petela 1979.…”

Section: Discussionmentioning

confidence: 99%

Morphology and immunohistochemical characteristics of the pterygopalatine ganglion in the chinchilla (Chinchilla laniger, Molina)

Szczurkowski¹,

Sienkiewicz²,

Kuchinka³

et al. 2013

Polish Journal of Veterinary Sciences

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Histological and histochemical investigations revealed that the pterygopalatine ganglion (PPG) in the chinchilla is a structure closely connected with the maxillary nerve. Macro-morphological observations disclosed two different forms of the ganglion: an elongated stripe representing single agglomeration of nerve cells, and a ganglionated plexus comprising smaller aggregations of neurocytes connected with nerve fibres. Immunohistochemistry revealed that nearly 80% of neuronal cell bodies in PPG stained for acetylcholine transferase (CHAT) but only about 50% contained immunoreactivity to vesicular acetylcholine transporter (VACHT). Many neurons (40%) were vasoactive intestinal polypeptide (VIP)-positive. Double-staining demonstrated that approximately 20% of the VIP-immunoreactive neurons were VACHT-negative. Some neurons (10%) in PPG were simultaneously VACHT/nitric oxide synthase (NOS)-or Met-enkephaline (Met-ENK)/CHAT-positive, respectively. A small number of the perikarya stained for somatostatin (SOM) and solitary nerve cell bodies expressed Leu-ENK-and galanin-immunoreactivity. Interestingly about 5-8% of PPG neurons exhibited immunoreactivity to tyrosine hydroxylase (TH). Intraganglionic nerve fibres containing immunoreactivity to VACHT-, VIP-and Met-ENK-were numerous, those stained for calcitonin gene related peptide (CGRP)-and substance P (SP)-were scarce, and single nerve terminals were TH-, GAL-, VIP-and NOS-positive.

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“…[21][22][23] In this study, structure of both sympathetic and parasympathetic autonomic ganglia and orientation of nerve fibers in both control and experimental groups were, in general, found to be similar to those reported earlier. [10,[24][25][26] Each neuron in ClG is anatomically and functionally independent. In the present study, a couple of neurons appeared to share a common sheath formed by satellite glial cells and the interneuronal sheath connective tissue was not visible.…”

Section: Discussionmentioning

confidence: 99%

Effect of streptozotocin-induced diabetes on the autonomic ganglia of albino rats

Faizal¹,

Khan²

2017

Anatomy

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Objectives: One of the common clinical observations regarding long-standing hyperglycemia is autonomic neuropathy, probably due to its unfavorable destructive effects on the neurons of the autonomic ganglia. Accordingly, the current study was aimed to analyze the effect of experimental hyperglycemia on parasympathetic pterygopalatine ganglion (PtG) and sympathetic coeliac ganglion (ClG) of albino rats.Methods: Thirty-six albino rats were divided into six groups (n=6, each) and were designated as control, two weeks, one month, two months, four months and six months groups. Diabetes was induced with a single dose of streptozotocin (STZ, 60 mg/kg, i.p.). Body weight and blood sugar were monitored at biweekly intervals. At the end of each experimental period, animals were euthanized by deep ether anesthesia and blood samples were collected by direct puncture of heart for biochemical analysis. Animals were perfused with Karnovsky fixative. After 48 hours, tissue samples were collected and processed for light microscopy.Results: Biochemical analysis of serum revealed increased serum creatinine and reduced serum total protein. Histopathology and histomorphometry of ganglia revealed that the progressively increasing duration of hyperglycemia was associated with decreased proportion of small-sized neurons, increased proportion of large-sized neurons, dark and dead neurons, and thickening of capsular and endoneurial collagen. Conclusion:The association of the long-standing hyperglycemia with increased neuronal death, altered proportion of neurons and deposition of collagen fibers in autonomic ganglia appear to be important contributing factors likely to be responsible for diabetic autonomic neuropathy.

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Topography of Arterial Circle of the Brain in Egyptian Spiny Mouse (Acomys cahirinus, Desmarest)

Cited by 20 publications

References 11 publications

The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)

The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)

Morphology and immunohistochemical characteristics of the pterygopalatine ganglion in the chinchilla (Chinchilla laniger, Molina)

Effect of streptozotocin-induced diabetes on the autonomic ganglia of albino rats

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