Results 131 to 140 of about 3,916 (148)

Nuclear organization of the serotonergic system in the brain of the rock cavy (Kerodon rupestris)

Journal of Chemical Neuroanatomy, 2012
Serotonin, or 5-hydroxytryptamine (5-HT), is a substance found in many tissues of the body, including as a neurotransmitter in the nervous system, where it can exert different post-synaptic actions. Inside the neuro-axis, 5-HT neurons are almost entirely restricted to the raphe nuclei of the brainstem. As such, 5-HT-immunoreactivity has been considered
Joacil G, Soares, José R L P, Cavalcanti, Francisco G, Oliveira, André L B, Pontes, Twyla B, Sousa, Leandro M, Freitas, Jeferson S, Cavalcante, Expedito S, Nascimento, Judney C, Cavalcante, Miriam S M O, Costa   +9 more
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Bearded capuchin (Sapajus libidinosus) predation on a rock cavy (Kerodon rupestris) followed by prey sharing

Primates, 2021
We describe predation on an adult rodent rock cavy and sharing of the carcass by a group of male bearded capuchins. Despite many studies, such an interaction has never been observed in bearded capuchins. Rock cavies are large rodents weighing around 25% of the weight of an adult male bearded capuchin.
Robério Freire Filho, Sanjay Veiga, Bruna Bezerra   +2 more
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Retinal projections into the Zona Incerta of the rock cavy (Kerodon rupestris): A CTb study

Neuroscience Research, 2014
The Zona Incerta is a key neural substrate of higher brain functions. A neural population in the caudal ZI projects into the superior colliculus. This recently has been identified as an important structure for the saccades. Applying CTb, we describe a retinal projection into the caudal ZI and the distribution of its terminal varicosities in the rock ...
Paulo Leonardo Araújo, de Góis Morais, Melquisedec Abiaré Dantas, de Santana, Judney Cley, Cavalcante, Miriam Stela Maris, de Oliveira Costa, Jeferson, Sousa Cavalcante, Expedito Silva, do Nascimento   +5 more
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Morphological tools to evaluate the digestory apparatus in rocky cavy (Kerodon rupestris)

Microscopy Research and Technique, 2019
AbstractThis research describes for the first time the complete morphology of the digestive apparatus of rock cavies. Dissection, light microscopy, and scanning electron microscopy were performed. The oral cavity has: the hard palate without palatine wrinkles and the soft palate; the tongue composed by striated musculature, with presence of vallate ...
Marian Mazeto de Aro, Amilton Cesar dos Santos, Erick Eduardo da Silveira, Antônio Francisco da Silva Lisboa Neto, Moacir Franco de Oliveira, Antônio Chaves de Assis Neto   +5 more
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Distribution of nitric oxide synthase in the rock cavy (Kerodon rupestris) brain I: The diencephalon

Brain Research, 2018
Nitric oxide (NO) is a highly soluble and membrane-permeable neurotransmitter, so it does not need to be packed in vesicles or have a membrane receptor. In the nervous system, NO is synthesized by the neuronal form of the nitric oxide synthase (NOS) enzyme and has been considered as a local neurotransmitter.
Maria Emanuela Martins Dos, Reis, Lucimário Thiago Félix de, Araújo, Wylqui Mikael Gomes, de Andrade, Nayra da Silva, Resende, Ruthnaldo Rodrigues Melo de, Lima, Expedito Silva do, Nascimento, Miriam Stela Maris de Oliveira, Costa, Judney Cley, Cavalcante   +7 more
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Population density and use of space by Kerodon rupestris: An endemic and threatened rodent in the semiarid areas of Brazil

Journal of Arid Environments, 2021
Abstract Population density and use of space by the rodent, Kerodon rupestris, were investigated in a semiarid area in Brazil. Distance sampling was used along line transects to estimate population density. Observations of K. rupestris were recorded on rocks, open ground, and in vegetation.
Anderson Mendonça Conceição, Adriana Bocchiglieri   +1 more
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Temporal variation in the diet of the endemic and threatened rodent Kerodon rupestris in the semiarid area of Brazil

Mammalia, 2021
Abstract We investigated the diet and trophic niche of Kerodon rupestris in Northeastern Brazil for 12 months. The influence of precipitation was evaluated by simple logistic regression. This rodent consumed 23 plant species, mainly the leaves, resulting a low niche breadth.
Anderson Mendonça Conceição, Adriana Bocchiglieri   +1 more
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Nuclear organization and morphology of cholinergic neurons in the brain of the rock cavy (Kerodon rupestris) (Wied, 1820)

Journal of Chemical Neuroanatomy, 2018
The aim of this study was to conduct cytoarchitectonic studies and choline acetyltransferase (ChAT) immunohistochemical analysis to delimit the cholinergic groups in the encephalon of the rock cavy (Kerodon rupestris), a crepuscular Caviidae rodent native to the Brazilian Northeast.
N.R. Resende, P.L. Soares Filho, P.P.A. Peixoto, A.M. Silva, S.F. Silva, J.G. Soares, E.S. do Nascimento, J.C. Cavalcante, J.S. Cavalcante, M.S.M.O. Costa   +9 more
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Microscopy of the umbilical cord of rock cavies—Kerodon rupestris Wied, 1820 (Rodenta, Caviidae)

Microscopy Research and Technique, 2013
ABSTRACTThe rock cavies (Kerodon rupestris) are rodents belonging to family Caviidae, with habitat restricted to northeastern Brazil. Current studies have shown that blood cord has stem and hematopoietic cells both with a high regenerative potential, microscopic studies about the description in rodents and other mammals are scarce.
Marcio Nogueira, Rodrigues, Gleidson Benevides, De Oliveira, Valéria Veras, De Paula, Alexandre, Rodrigues Silva, Antonio Chaves, De Assis Neto, Maria Angelica, Miglino, Moacir Franco, De Oliveira   +6 more
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Verhalten, soziale Beziehungen und Belastungen in Gehegegruppen von Felsenmeerschweinchen: (Kerodon rupestris CUVIER 1825)

, 2001
Mikes U. Verhalten, soziale Beziehungen und Belastungen in Gehegegruppen von Felsenmeerschweinchen: (Kerodon rupestris CUVIER 1825).
Mikes, Uwe
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