Marcelo Abidu-Figueiredo | Universidade Federal Rural do Rio de Janeiro (original) (raw)

Papers by Marcelo Abidu-Figueiredo

Intellectual and scientific content of the study, statistical analysis, technical procedures, cri... more Intellectual and scientific content of the study, statistical analysis, technical procedures, critical revision.

Revista de Medicina Veterinaria

El hormiguero menor (Tamandua tetradactyla) es un mamífero de la familia Myrmecophagidae, que for... more El hormiguero menor (Tamandua tetradactyla) es un mamífero de la familia Myrmecophagidae, que forma parte del superorden Xenarthra. Se encuentra en América del Sur y se distribuye en todos los biomas brasileños. Los aspectos ecológicos de la morfología del hormiguero menor aún son poco conocidos. Este estudio utilizó doce especímenes de Tamandua tetradactyla de género no identificado; un espécimen de perro macho (Canis lupus familiaris); un espécimen de gata (Felis catus); y un espécimen de oveja (Ovis aries), los cuales fueron disecados para evidenciar el origen e inserción del músculo gracilis. El objetivo de este trabajo es describir el origen y la inserción del músculo gracilis en el hormiguero menor. El conocimiento sobre los aspectos biomecánicos de las especies terrestres y arbóreas es importante en los estudios ecomorfológicos. En ese contexto, el Tamandua tetradactyla es trepador y utiliza activamente sus extremidades posteriores en aducción cuando trepa por troncos y árboles.

DOAJ (DOAJ: Directory of Open Access Journals), Aug 1, 2013

Acta Scientiarum. Biological Sciences, Dec 1, 2013

The broad-snouted caiman, Caiman latirostris, is widely distributed in countries of South America... more The broad-snouted caiman, Caiman latirostris, is widely distributed in countries of South America. In Brazil it is considered an endangered species because of natural habitat destruction and illegal hunting. In reptiles, the thyroid gland plays an integral part in ecdysis, reproduction, tail regeneration, growth, endocrine function and metabolism rate. The aim of the present study was to characterize the thyroid gland morphology of C. latirostris, based on histochemical and immunohistochemical techniques. The thyroid glands were fixed in Bouin's fluid and serial cross sections were stained with hematoxylin-eosin, Mallory’s trichrome, periodic acid-Schiff (PAS) and Alcian blue (AB pH 1.5 and 2.5). The immunohistochemical technique for 5-HT-IR cells was used. The thyroid gland has a dense irregular connective tissue forms a capsule enveloping the gland. There are several follicular acini of varying size lined by simple cuboidal or columnar epithelium in the thyroid gland. The follicles are connected by interfollicular connective tissue which contains blood vessels. We observed the presence of lymph nodes around the entire gland. There was a positive PAS reaction and negative AB reaction in the colloid. 5-HT-IR cells were detected around the follicle cells. No striking morphological differences were observed between C. latirostris and other domesticated mammals.

DOAJ (DOAJ: Directory of Open Access Journals), Aug 1, 2008

The presence of the multiple renal artery in dogs, supplying the left kidney, has been reported i... more The presence of the multiple renal artery in dogs, supplying the left kidney, has been reported in 12-15%. New surgery technics in the urogenital tract and the utilization of model for renal transplantation are of clinical significance when considering surgery of that kidney. Courses of anatomy directed veterinary medicine and animal anatomy for students of courses of graduation in the areas of agrarian and biological sciences, use anatomical material proceeding from domestic animals in considerable volume. The use of the material of the laboratories of anatomy for studies of frequency of anatomical variations constitutes way of together contribution to the applied areas, such as the surgery and the clinic. The objective of this report is to presentation of the left multiple renal artery case, originating from the ventral portion of the aorta, in female dog cadaver, with two months, formalin-preserved at 10% and with latex colored vascular injected.

Revista Brasileira De Medicina Veterinaria, 2022

Revista Acadêmica: Ciência Animal, 2015

Ciência Animal Brasileira, 2019

Braz. j. morphol. sci, 2013

Brazilian Journal of Veterinary Medicine, 2015

ABSTRACT. Grillo G.F., Guimarães A.L.L., Soares J.R., Mello M.R.B., Alonso L.S., Abidú-Figueiredo... more ABSTRACT. Grillo G.F., Guimarães A.L.L., Soares J.R., Mello M.R.B., Alonso L.S., Abidú-Figueiredo M. & Palhano H.B. [Effect of gynecological screening on rates of conception and gestation total of Nellore cows submitted to three protocols for fixed-time artificial insemination (TAI).] Efeito da triagem ginecológica sobre as taxas de concepção e gestação total de vacas Nelore submetidas a três protocolos de inseminação artificial em tempo fixo (IATF). Revista Brasileira de Medicina Veterinária, 37(3):250-254, 2015. Área de Anatomia, Departamento de Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Campus Seropédica, BR 465 km 7, Seropédica, RJ 23890-000, Brasil. Email: helcimarpalhano@gmail.com The aim of this study was to assess the rates of total conception and gestation of Nellore cows total, commercial herd in the region of the coastal plains of the state of RJ, subjected to three hormonal protocols for synchronization of ovulation with screeni...

ABSTRACT. Estruc M.T., Gomes M.S., Palhano H.B. & Abidu-Figueiredo M. [Caudal mesenteric artery a... more ABSTRACT. Estruc M.T., Gomes M.S., Palhano H.B. & Abidu-Figueiredo M. [Caudal mesenteric artery agenesis in a cat - Case report]. Agenesia da arteria mesente- rica caudal em um gato - Relato de caso. Revista Brasileira de Medicina Veterinaria 34(2):83-85, 2012.Area de Anatomia Animal, Departamento de Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, BR 465 km 7, Seropedica, 23890-000, RJ, Brasil. E-mail: marceloabidu@gmail.com Considering that the anatomical knowledge is necessary to understand biological functions, enabling clinical and surgical procedures this macroscopic study of the caudal mesenteric artery was carried out, with the aim of increasing knowledge of comparative anatomy for the implementation of the respective procedures. Data from specialized literature on cat vascular anatomy are scarce and they are always related to dogs. With the intention to report a vascular variation not previously described in cat this paper describes the ...

Veterinaria E Zootecnia, Nov 5, 2012

O diagnostico de doenca ureteral primaria e relativamente raro em pequenos animais, porem existe ... more O diagnostico de doenca ureteral primaria e relativamente raro em pequenos animais, porem existe um numero consideravel de anomalias congenitas e adquiridas que afetam o ureter e que podem gerar danos a funcao renal (1,2). As anomalias congenitas sao as causas mais comuns de incontinencia urinaria de caes jovens (3). Ureteroceles sao anomalias congenitas que se caracterizam por dilatacoes cisticas da regiao submucosa que acometem o segmento distal do ureter. Sao frequentemente observadas em seres humanos, mas sao raros os achados em caes. Ureterocele intravesical em caes normalmente e assintomatica e, apesar de poucos diagnosticos, sao causas importantes de obstrucao (1,2,4,5). A ultrassonografia tem se mostrado um importante meio de diagnostico pre-natal de processos patologicos do sistema urinario. E um metodo rapido, seguro e nao invasivo de visualizacao das estruturas do sistema urinario para a avaliacao da arquitetura interna e da topografia (2,5). Este relato descreve um achado raro de uma anomalia congenita do ureter fetal em uma avaliacao pre-natal, atraves do exame ultrassonografico.

The aim of this study was to verify the prevalence of the ossified superior transverse scapular l... more The aim of this study was to verify the prevalence of the ossified superior transverse scapular ligament (STSL) on dry bones of scapulae. 221 dry bones were analyzed, (111 rights and 110 lefts), proceeding from Rio de Janeiro and of Santa Catarina, Brazil. As exclusion criterion, were not analyzed bones of children or damaged. For the quantitative analysis of the data, the software Graphad Instat was used. Fisher exact test was used considering the p≤ 0,05 as significant. After analysis of the scapulae, 30,76% (68/ 221) presented the ossified STSL (p≤ 0,0001) of which, 52,94% (36/68) were ossified on the right side and 47,05% (32/68) on the left one. The 153 scapulae that did not present the ossified STSL, it was observed in 19,6 % (30/153) of these bones, the superior edge varying in the transverse plan, increasing superior angulation and, modified the width and depth of the scapular incisure. This anatomical curiosity should be kept in mind by clinicians that approaches painful syndrome of the shoulder, as well as, this anatomical curiosity should be kept in mind by students that may manipulate this anatomical area.

International Journal of Medical and Health Research, 2016

The ureters are conduit for urine as they leave the kidney and enter the urinary bladder. Megaure... more The ureters are conduit for urine as they leave the kidney and enter the urinary bladder. Megaureter, ureterocele, and H shaped ureter are diseases that involve this particular structure. Furthermore, these pathologies are often associated with other conditions, such as horse shoe kidney and ectopic kidney. Bifid ureter is one of the malformations of the kidney collecting system-the minor and major calyces. It can be complete, when the division is total and the supernumerary ureter joins the bladder through another orifice, or incomplete, where the ureters merge together. The incidence of this condition is 0.8% in the overall population, although it is more common in women. It is also more commonly found as a unilateral condition. We report a case of bilateral bifid ureter on a male cadaver, discussing the many forms of variation and their clinical significance.

The respiratory system of the turtle is formed by specific organs that convey air from environmen... more The respiratory system of the turtle is formed by specific organs that convey air from environment to small air sacs used for gas exchange called alveoli. In Podocnemis expansa, the trachea bifurcates into two primary extrapulmonary bronchi that, at the hilum, enters each lung of a spongy appearance, and are located just beneath the carapace. Four tissue layer structure the trachea: mucosa, submucosa, cartilage and serosa. The mucosa is lined by typical respiratory epithelium, resting on lamina propria of loose connective tissue. Just beneath, the submucosa is poorly developed and continuous to the perichondrium of the hyaline cartilage piece. The serosa is constituted by connective tissue with elastic fibers. The intrapulmonary bronchus exhibits similar trachea morphology but the cartilage pieces are fragmented. Inside the lung, projections depart from the pulmonary wall and project into the lumen, forming cup-like chambers named alveoli. Considering the projection size and the type of the lining epithelium, they are classified as primary, secondary and tertiary trabeculae. Two types of pneumocytes lined the lateral surface of trabeculae: lining pneumocyte type I and pneumocyte type II, which is also responsible for surfactant production. The trabeculae is supported by loose connective tissue rich in blood vessels, containing collagenous fibers, scarce elastic fibers as well as smooth muscles cells. The morphological analysis revealed that the trachea and the lung of Brazilian Amazon turtle possess similarities with other chelonian species with phylogenetic proximity.

Acta Veterinaria Brasilica, 2009

The Journal of Sexual Medicine, Apr 1, 2017

Results: No difference was observed in sperm parameters in the prepubertal group when compared to... more Results: No difference was observed in sperm parameters in the prepubertal group when compared to controls. However, the sperm motility decreased by 19% (p¼0.012) and viability by 46% (p¼0.0002) in the adult group of immediate effects analysis. The sperm viability decreased by 24% (p¼0.0049) in the adult group of late effects analysis. Seminiferous tubule diameter of the prepubertal and adult groups of immediate analysis showed a reduction of 4% (p¼0.0254) and 6% (p¼0.013), respectively. In the prepubertal group of late effects analysis, the density of tubular and intertubular compartments showed a decrease of 2% (p¼0.0027) and increase of 18% (p¼0.0027), respectively. Conclusion: Chronic stress caused morphological changes in testicles during prepubertal and adult age, nevertheless, spermatozoid alterations were observed only when it occurred during the adulthood. Hence, alterations promoted by chronic stress stimuli are more important in adult rats than in prepubertal animals. Source of Funding: Capes, CNPq and Faperj.

Arquivos de Ciências Veterinárias e Zoologia da UNIPAR

Relatos de ingestão de corpos estranhos dos mais diferentes materiais são comuns em aves, especia... more Relatos de ingestão de corpos estranhos dos mais diferentes materiais são comuns em aves, especialmente nas mais jovens. Os corpos estranhos podem causar intoxicação (dependendo da composição do material) ou mesmo perfuração do canal alimentar ou obstrução gastrintestinal. Quando há suspeita de ingestão de corpos estranhos, exames de imagem como a radiologia, ultrassonografia e endoscopia são ferramentas valiosas para o diagnóstico. Objetivou-se relatar um caso de uma ave da espécie Gallus gallus domesticus, raça Brahma, sete meses de idade, macho, pesando 4,3 Kg com quadro de sensibilidade na cavidade corporal e histórico de regurgitação, hiporexia e prostração há cinco dias. As radiografias simples indicaram a presença de corpo estranho radiopaco (parafuso) alojado na região do ventrículo (moela). Após tratamento clínico com lavagens gástricas por cinco dias sem êxito, optou-se por realizar uma endoscopia digestiva alta sob anestesia geral com quetamina e isoflurano. O corpo estra...

Revista de Medicina Veterinaria

DOAJ (DOAJ: Directory of Open Access Journals), Aug 1, 2013

Acta Scientiarum. Biological Sciences, Dec 1, 2013

DOAJ (DOAJ: Directory of Open Access Journals), Aug 1, 2008

Revista Brasileira De Medicina Veterinaria, 2022

Revista Acadêmica: Ciência Animal, 2015

Ciência Animal Brasileira, 2019

Braz. j. morphol. sci, 2013

Brazilian Journal of Veterinary Medicine, 2015

Veterinaria E Zootecnia, Nov 5, 2012

International Journal of Medical and Health Research, 2016

Acta Veterinaria Brasilica, 2009

The Journal of Sexual Medicine, Apr 1, 2017

Arquivos de Ciências Veterinárias e Zoologia da UNIPAR

Journal MVZ Cordoba, 2020

Objective. The aim of this study was explored the duplicity of renal artery in a specimen of Cerd... more Objective. The aim of this study was explored the duplicity of renal artery in a specimen of Cerdocyon thous, focusing on the possibilities of clinical-surgical implication of this anatomical variation. Materials and methods. Were dissected 32 specimens of Cerdocyon thous, obtained from the collections of the Laboratório de Ensino e Pesquisa em Morfologia dos Animais Domésticos e Selvagens do Departamento de Anatomia Animal e Humana, da Universidade Federal Rural do Rio
de Janeiro e Laboratório de Anatomia Animal da Universidade Federal do Pampa. Results. Were observed a numerical variation in the left renal artery in an adult female cadaver. The left kidney had two renal arteries, one cranial and another caudal. The first renal artery of the left kidney, measuring 2.25 cm in length, originated laterally from the abdominal aorta at the level of the third lumbar
vertebra. Moreover, it emanated two pre-hilar branches, one dorsal and one ventral, with the ventral branch supplying also to the adrenal gland. The second renal artery also originated laterally from the abdominal aorta at the level of the third lumbar vertebra and measured 2.36 cm in length. It also emitted two pre-hilar branches, one cranial and another caudal, which emitted the ureteral branch. Conclusions. Numerical variations of the renal arteries should be considered in the execution of surgical, radiological and experimental procedures in order to avoid mistakes made due to lack of knowledge of the possibility these variations both in domestic and wild animals.