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Radan Elvis Matias de Oliveira Giovanna Almeida Santoro Augusto Carlos da Bôaviagem Freire Fernanda Löffler Niemeyer Attademo Stella Almeida Lima Aline da Costa Bomfim Ana Bernadete Lima Fragoso Flávio José de Lima Silva Simone Almeida Gavilan Moacir Franco de Oliveira 《Anatomia, histologia, embryologia》2020,49(1):25-30
The aortic arrangement is an important structure associated with the maintenance of homeostasis. Based on this information, this study was conducted to describe the collateral arteries of the aortic arch of Antillean manatee and define the standard model for the species. Three specimens, an adult male, adult female and a male neonate, all strandings on the coast of the state of Rio Grande do Norte, Brazil, were used. The study was performed in the Laboratory of Morphophysiology of Vertebrates of the Federal University of Rio Grande do Norte, where in situ photographs were taken to demonstrate their topography. Subsequently, their hearts were removed and fixed in 10% formaldehyde and after 72 hr were dissected and analysed, obtaining schematic drawings and photographs of the vascular arrangement. The aortic arch was represented by three collateral arteries identified as the brachiocephalic trunk, left common carotid artery and left subclavian artery. This arrangement was similar to that found for other sirenians, and yet, for other mammals like hooded seal, murine, margarita island capuchin, black-handed tamarin, Mongolian gerbil and human. The morphological similarity presented in this study with different species of mammals, including humans, may contribute valuable information from an evolutionary point of view. 相似文献
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Attademo Andrés M. Peltzer Paola M. Lajmanovich Rafael C. Basso Agustín Junges Celina 《Water, air, and soil pollution》2014,225(3):1-9
Water, Air, &; Soil Pollution - We determined basal levels of cholinesterase (ChE) and carboxylesterase (CbEs; two substrates: α-naphthyl acetate and 4-nitrophenylvalerate) in different... 相似文献
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Andrés M. Attademo Rafael C. Lajmanovich Paola M. Peltzer Agustín Bassó Celina Junges Mariana Cabagna-Zenklusen 《Water, air, and soil pollution》2012,223(6):3321-3331
We determined normal plasma butyrylcholinesterase (BChE), carboxylesterase (CbE using ??-NA substrate), and glutathione S-transferase (GST) activities in Caiman latirostris and Phrynops hilarii to obtain reference values for organophosphorus (OP) pesticide monitoring. BChE and CbE sensitivity to malaoxon was also evaluated. C. latirostris (N?=?12; six males and six females) and P. hilarii (N?=?12; seven males and five females) were obtained from the programs Yacaré (Entre Ríos Province, Argentina) and Zoo of Córdoba (Córdoba Province, Argentina). Mean total (female and male) plasma BChE activity was significantly different between reptile species, ranging between 0.337?±?0.085???mol?min?1?ml?1 of plasma for C. latirostris and 0.251?±?0.070???mol?min?1?ml?1 of plasma for P. hilarii. However, plasma CbE (??-NA) and GST activities were significantly higher in P. hilarii (4.81?±?1.00 and 0.145?±?0.045???mol?min?1?ml?1 of plasma, respectively) than in C. latirostris (0.57?±?0.20 and 0.059?±?0.013???mol?min?1?ml?1 of plasma, respectively). No significant differences in B-esterase and GST activities were detected between sexes, except CbE (??-NA) for C. latirostris. IC50 values for BChE and CbE (??-NA) suggested different sensitivity levels between species and between sexes. The results demonstrate that plasma esterase activity varied between species, but not between sexes (except CbE for C. latirostris). The in vitro inhibition tests indicated that CbE (??-NA) is more sensitive to inhibition than BChE. C. latirostris may be the reptile species most vulnerable to field pesticide exposure because this reptile presents the lowest CbE activity levels and its B-esterase levels seem more sensitive to OP. 相似文献
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