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Search Results: 1 - 10 of 717155 matches for " M. A.; Abidu-Figueiredo "
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Histochemical Features of the Extracellular Matrix in Rattus rattus norvegicus Otic Ganglion
Chagas,M. A.; Babinski,M. A.; Abidu-Figueiredo,M.; Costa,W. S.;
International Journal of Morphology , 2006, DOI: 10.4067/S0717-95022006000100015
Abstract: the otic ganglion is a cranial component of the parasympathetic division of the autonomic nervous system (ans). similar to other parasympathetic ganglia, otic ganglion presents multipolar neurons that are completely surrounded by satellite cells and intercellular substance as well, which allow us to use this ganglion as a good experimental model for studying the relationship neuron / extracellular matrix. we have studied rat otic ganglion in 10 animals through light microscopy. after routine histological methods, 5 μm sections were obtained and coloured by gomori`s trichrome, periodic acid-schiff (pas), alcian blue ph 2.5 and ph1.0, acetylation + pas, acetylation + deacetylation + pas, acid hydrolysis + pas, phenylhydrazine + pas and thiosemicarbazide + pas. the presence of neutral glycoproteins was demonstrated by pas reactivity. pas inhibition following alcian blue staining in ph 2.5 and 1.0 showed the presence of a small quantity of acid glycoprotein. the extracellular matrix analysis showed the presence of neutral and acid glycoconjugates. these findings suggests a mutual interaction and a complex role in ganglionic physiology
Histochemical Features of the Extracellular Matrix in Rattus rattus norvegicus Otic Ganglion Características Histoquímicas de la Matriz Extracelular en el Ganglio ótico de Rattus rattus norvegicus
M. A. Chagas,M. A. Babinski,M. Abidu-Figueiredo,W. S. Costa
International Journal of Morphology , 2006,
Abstract: The otic ganglion is a cranial component of the parasympathetic division of the autonomic nervous system (ANS). Similar to other parasympathetic ganglia, otic ganglion presents multipolar neurons that are completely surrounded by satellite cells and intercellular substance as well, which allow us to use this ganglion as a good experimental model for studying the relationship neuron / extracellular matrix. We have studied rat otic ganglion in 10 animals through light microscopy. After routine histological methods, 5 μm sections were obtained and coloured by Gomori`s trichrome, periodic acid-Schiff (PAS), Alcian Blue pH 2.5 and pH1.0, acetylation + PAS, acetylation + deacetylation + PAS, acid hydrolysis + PAS, phenylhydrazine + PAS and thiosemicarbazide + PAS. The presence of neutral glycoproteins was demonstrated by PAS reactivity. PAS inhibition following Alcian Blue staining in pH 2.5 and 1.0 showed the presence of a small quantity of acid glycoprotein. The extracellular matrix analysis showed the presence of neutral and acid glycoconjugates. These findings suggests a mutual interaction and a complex role in ganglionic physiology El ganglio ótico es un componente craneal de la división parasimpática del sistema nervioso autónomo (SNA). Similar al otro ganglio parasimpático, el ganglio ótico presenta neuronas multipolares que están rodeadas totalmente por las células satélites y la sustancia intercelular, lo cual permite la utilización de este ganglio como un buen modelo experimental para estudiar las relaciones matriz extracelular/neurona. Examinamos, con microscopio de luz, el ganglio ótico 10 ratones. Con los métodos histológicos rutinarios fueron obtenidas 5 secciones y coloreadas con tricrómico de Gomori, PAS, Azul de Alcián pH 2.5 y pH1.0, acetilación + PAS, acetilación + desacetilación + PAS, hidrólisis de ácido + PAS, fenilhidrazina + PAS y tiosemicarbacida + PAS. La presencia de glicoproteínas neutras fue demostrada por la reactividad de PAS. La inhibición de PAS y la posterior tinción con Azul de Alcian en pH 2.5 y 1.0, demostró la presencia de una cantidad peque a de glicoproteínas ácidas. El análisis extracelular de la matriz demostró la presencia de glicoconjugados neutros y ácidos. Estos resultados sugieren una interacción mutua y un papel complejo en la fisiología ganglionar
Triple Right Renal Vein: An Uncommon Variation Vena Renal Derecha Triple: Una Variación Rara
R. M. P. Fernandes,F. H. P. Conte,L. A. Favorito,M. Abidu-Figueiredo
International Journal of Morphology , 2005,
Abstract: We report an unilateral three renal veins the right kidney in an elderly male cadaver. They were three calibrous veins having independent courses up to the inferior vena cava. No other vascular anomalies were noted in this specimen. This anatomical curiosity should be kept in mind by clinicians and academics that may manipulate this anatomical area Presentamos una variación anatómica consistente en tres venas renales unilaterales presentes en el ri ón derecho de un cadáver de un individuo adulto de sexo masculino. Las tres venas eran de calibre considerable, las cuales tenían cursos independientes hasta la vena cava inferior. No se observó ninguna otra variación vascular en este individuo. Tanto los clínicos como los académicos deben tener presente esta variación anatómica cuando se acceda a esta área anatómica
LA RELACIóN DE LOS ESTUDIANTES CON EL CADáVER EN EL ESTUDIO PRáCTICO DE ANATOMíA: LA REACCIóN E INFLUENCIA EN EL APRENDIZAJE
Babinski,M. A.; Sgrott,E. A.; Luz,H. P.; Brasil,F. B.; Chagas,M. A.; Abidu-Figueiredo,M.;
International Journal of Morphology , 2003, DOI: 10.4067/S0717-95022003000200007
Abstract: theviewandhandlingofcorpseinanatomy′sclassesarestillmethodsthatcontributeinanaffecientway totheform,espaceanddistancecomprehensionofanatomic′sestructure. nevertheless,thecontactwith corpse seemsto provokedistinctstypesofreactionsinstudents. purpose:identifythehealthstudernt′sreactionfacetoafirstcorpsecontactinanatomy′spracticeclasses. the application analyze theinfluenceofapracticeclassinanatomy′s"teaching and learning"too. 395healthstudents,whomtakepartinto teoricand practiceanatomy′sclasses, wereinterviewedby theendofthesemester. the instrumentofresearchissettleofaquestionnairewithclosedandfree inquiries puttinginto verse sex,age,course, interesting indisciplineandreactionsfacetoacorpsecontact.thestatistictreatment ofdatawasdonehelppedbygraph padinstat software, whereinthechoosentestwasqi2 withap<0.05likesignificative. mostofthemwereyoung,being themajorityfeminine.92,2%ofthestudents consider"important" andarereallyinterestedin takenoticeabouthumanbody independentofcurricular exigence. thereactionfacetoafirstcorpsecontact,40,8% reported nonefear.somereactionswereidentifiedin16%asfear,nausea,shockand recallto memoryfromdeceasedrelatives."familiarity" with the corpse,thestudents revealed anacademical relation,respectingyourstudy instrumentandshowedthatthey don′tsuffer any quotidian variation innourishment,slee,etc. consideringthepractice studyincorpse, itwas"very important"whereas itshandling influencein apprenticeship. seemstooccuran"disfigured"ofthecorpseafterdissection,becausethe reactionsfacetoafirst contactwerenot expressives. thepracticestudyin corpseisindispensablesinceit materializesandcorrects wrong teorics conceitsand/orvariations upontopographicsaspects.
VARIACIONES ANATóMICAS ENTRE EL NERVIO ISQUIáTICO Y EL MúSCULO PIRIFORME DURANTE EL PERíODO FETAL HUMANO
Machado,F. A.; Babinski,M. A.; Brasil,F. B.; Favorito,L. A.; Abidu-Figueiredo,M.; Costa,M. G.;
International Journal of Morphology , 2003, DOI: 10.4067/S0717-95022003000100005
Abstract: the sciatic nerve, branch of the sacral plexus, leaves the pelvis and passes usually below of the piriform muscle. the sciatic nerve also comes from this plexus and can have distinct relationships with the mentioned muscle, as the high division of the nerve. however, there are few studies that correlate that division with the course of the sciatic nerve and its relationship with the piriform muscle, as well as, variations of that muscle in human fetuse. in order to verify a possible association between those anatomical structures, we dissected 100 gluteal regions of human fetuses. three types of variations were found between the sciatic nerve and the piriform muscle. the common fibular nerve pierced the muscle and the tibial nerve passed below of its inferior margin in 8 cases (16,0 %), corresponding to the type i. in these cases, we found 62,5% in right side and 37,5% in left side. the type ii was observed in 1 case (2,0 %), the common fibular nerve passed over the superior margin and the tibial nerve below of the inferior margin of the piriform muscle. in the type iii the sciatic nerve passed into piriform muscle, without any division. the piriform muscle presented variations of fusion with the medium gluteal muscle (right side =2,0%) and with the higher gemeo muscle (right side =24,0% and left side =32,0%). these data show that there is equivalence between the sciatic nerve course and the piriform muscle in fetuses and adults and that the variations of the piriform muscle are not associated with alterations in the pelvis byomechanics.
Triple Right Renal Vein: An Uncommon Variation
Fernandes,R. M. P.; Conte,F. H. P.; Favorito,L. A.; Abidu-Figueiredo,M.; Babinski,M. A.;
International Journal of Morphology , 2005, DOI: 10.4067/S0717-95022005000300007
Abstract: we report an unilateral three renal veins the right kidney in an elderly male cadaver. they were three calibrous veins having independent courses up to the inferior vena cava. no other vascular anomalies were noted in this specimen. this anatomical curiosity should be kept in mind by clinicians and academics that may manipulate this anatomical area
Celiac artery in New Zealand rabbit: anatomical study of its origin and arrangement for experimental research and surgical practice
Abidu-Figueiredo, Marcelo;Xavier-Silva, Bárbara;Cardinot, Themis M.;Babinski, Márcio A.;Chagas, Maurício A.;
Pesquisa Veterinária Brasileira , 2008, DOI: 10.1590/S0100-736X2008000500002
Abstract: rabbits have been used as an experimental model in many diseases and for the study of toxicology, pharmacology and surgery in many universities. however, some aspects of their macro anatomy need a more detailed description, especially the abdominal and pelvic arterial vascular system, which has a huge variability in distribution and trajectory. thirty cadaveric adult new zealand rabbits, 13 male and 17 female, with an average weight and rostrum-sacral length of 2.5 kg and 40cm, respectively, were used. the thoracic aorta was cannulated and the vascular system was filled with stained latex s-65. the celiac artery and its proximal branches were dissected and lengthened in order to evidence origin and proximal ramifications. the celiac artery emerged between the 12th and 13th thoracic vertebra in 11 (36.7%) rabbits; at the level of the 13th thoracic vertebra in 6 (20%) rabbits; between the 13th thoracic vertebra and the 1st lumbar vertebra in 12 (40%) rabbits; and at the level of the 1st lumbar vertebra in only one (3.3%) rabbit. the mean length of the celiac artery was 0.5cm. the celiac artery first branch was the lienal artery, the second branch was the left gastric artery and the hepatic artery arose from the left gastric artery in all the dissected rabbits. no relation was observed between the celiac artery length and the rostrum-sacral length in rabbits. the number of left gastric and lienal artery branches and the distribution of celiac artery origin are not gender dependent.
High Incidence of Complete Ossification of the Superior Transverse Scapular Ligament in Brazilians and its Clinical Implications
Silva,J. G; Abidu-Figueiredo,M; Fernandes,R. M. P; Aureliano-Rafael,F; Sgrott,E. A; Silva,S. F; Babinski,M. A;
International Journal of Morphology , 2007, DOI: 10.4067/S0717-95022007000400028
Abstract: 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
Variations of Celiac Artery in Dogs: Anatomic Study for Experimental, Surgical and Radiological Practice
Abidu-Figueiredo,M; Dias,G. P.; Cerutti,S; Carvalho-De-Souza,B; Maia,R. S.; Babinski,M. A.;
International Journal of Morphology , 2005, DOI: 10.4067/S0717-95022005000100007
Abstract: the purpose of this study is gain a better understanding of the anatomical variations of celiac artery and its branches in dogs. the celiac artery supply was analyzed in thirty dogs.the animals were injected with solution of petrolatex s65 and dissected to evidence the celiac artery origin and its proximal ramifications. the celiac artery and its proximal branches were dissected and lengthen. the celiac artery more frequently emerged ahead of the first lumbar vertebra in one way form. the medium length of the celiac artery was of 0.98 cm. the gastrolienal trunk was the predominant morphological arrangement with medium length of 0.19 cm. the lienal artery emerged in one way form emitting more frequently 2 main branches. a branch emerging of the celiac artery irrigating the left adrenal occurred in 4 animals. the left gastric artery presented 1 branch in 17 animals (56.7%), 2 branches in 11 animals (36.6%) and 3 branches in 3 animals (10%). the left pancreatic lobe received a main branch from the lienal artery in 24 animals (80.0%), two branches in 4 animals (13.4%), and a branch emerging of the gastrolienal trunk in 2 animals (6.6%). the present data should therefore provide important information for devising experiments and interpreting results when using the mongred dogs as a model for experimental surgery and radiolocal practice of the celiac artery specially when making comparisons to human anatomy
Maternal Food Restriction During Lactation Reduces Mandible Growth of the Female Offspring in Adulthood: Experimental and Morphometric Analysis
Degani Junior,Hugo V. M; Nunes,Viviane A; Bezerra,Ewerton C; Ramos,Cristiane F; Rodrigues,Mauro R; Abidu-Figueiredo,Marcelo; Cardoso,Gilberto P; Babinski,Marcio A;
International Journal of Morphology , 2011, DOI: 10.4067/S0717-95022011000200050
Abstract: the aim of this study was to evaluate the effects of maternal protein and energy restriction during lactation on mandible dimensions of pups (female) at aging. at parturition, wistar rat dams were randomly assigned to the following groups: 1) control group (c) - free access to a standard laboratory diet containing 23% protein, 2) protein-energy restricted group (per) - free access to an isoenergetic, protein-restricted diet containing 8% protein, and 3) energy-restricted group (er) - fed with restricted amounts of a standard laboratory diet. at weaning (d21), all pups were separated of dams and received free access to a standard laboratory diet containing 23% protein until 90 days (d90), when the rats were anesthetized and sacrificed. the dimensions of excised pup mandible were measured directly using pre-established 3 anatomical points. morphometric analysis showed that most of the measurements in the er and per groups were significantly lower than in the control group, with the greatest reductions occurring in the per group. these results show that protein and energy restriction during lactation have an important influence on pup mandible development and continue through the aging process.
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