Sciaenidae fish of the Caeté River estuary, Northern Brazil: mitochondrial DNA suggests explosive radiation for the Western Atlantic assemblage

Sciaenids are fish which are normally abundant in tropical estuaries of the western Atlantic. Studies on the Caeté river estuary in the northern Brazilian state of Pará have revealed that in this area Sciaenidae is the dominant family, comprising almost 50% of all teleosts sampled. In this paper we present the results of the first phylogenetic study on South American estuarine sciaenids, during which we obtained mitochondrial gene 16S sequences from 15 species belonging to eight genera occurring in the Caeté estuary. Intergeneric nucleotide divergences varied from 5 to 15%, Lonchurus and Menticirrhus being the most divergent lineages. Nucleotide divergences were quite variable amongst species of the same genus, ranging from 1.2% (Stellifer microps x Stellifer naso) to 8.4% (Menticirrhus americanus x Menticirrhus littoralis). Cladograms based on maximum parsimony, minimum evolution and maximum likelihood depicted an explosive diversification pattern for the western Atlantic sciaenid assemblage. Our analysis further reveals a very close relationship between Bairdiella and Stellifer, a monophyletic clade which emerged during the more recent diversification events of the Sciaenidae family. The phylogenetic reconstruction suggests the need for a revision of the taxonomy and nomenclature of the Bairdiella/Stellifer group.

Reconstruction of molecular networks involved in citokine-induced myotubes atrophy integrating microRNA and mRNA expression

Pós-graduação em Ciências Biológicas (Genética) - IBB

Comparison of the hemolytic activity between C. albicans and non-albicans Candida species

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Alterations of the gastric stump and not resected stomach mucosa after truncal vagotomy in rats

PURPOSE:To evaluate morphological changes of the gastric stump and not resected stomach mucosa after the completion of truncal vagotomy.METHODS:Eighty male Wistar rats were divided into four groups: CT, TV, RY and RYTV. In CT group, abdominal viscera were manipulated and the abdominal cavity was closed, in TV vagal trunks were isolated and sectioned, in RY a partial Roux-en-Y gastrectomy was performed and in RYTV the vagal trunks were sectioned and a partial Roux-en-Y gastrectomy was performed. At the 54th week after surgery, the rats were euthanized. The findings were submitted to histological analyses.RESULTS:None macroscopic or histological alterations in groups TV and CT was observed. Specimens from RY and RYTV groups did not show alterations in the gastric stump mucosa. At the jejunal side of the gastroenterostomy we found shallow ulcerative lesions always single, well-defined and with variable diameter 3 to 6 mm, six times in the RY group and none in the RYTV group (RY>RYTV, p=0.008). Neoplastic or preneoplastic lesions were not diagnosed in all groups.CONCLUSION:Truncal vagotomy is a safe and non-carcinogenic method in not resected and partially resected stomach.

The Primary Closure Approach of Dog Bite Injuries of the Nose

The nose holds an outstanding position on the face, acquiring great importance within the context of facial aesthetics. Because of the functional, psychological, and social aspects of trauma in a society increasingly demanding about aesthetics, treatment institution must reduce, as accurate as possible, the sequelae that hinder social integration. This clinical report relates an immediate nasal reconstruction of a complex animal bite wound. A 7-year-old patient was victim of a dog bite with avulsion of the left nasal ala and part of the ipsilateral nasal tip. The treatment was immediate nasal reconstruction with auricular composite graft. After 1 year of follow-up, the shape of nasal ala was stable, and the color was consistent with the surrounding tissue. The 2 nasal sides exhibited satisfactory symmetry when evaluated. It can be concluded that the composite graft derived from the auricular helix is a safe option for reconstruction of nasal ala defects with compromised margins in pediatric patients when conditions of reimplantation do not exist.

Cryptic Genetic Diversity Is Paramount in Small-Bodied Amphibians of the Genus Euparkerella (Anura: Craugastoridae) Endemic to the Brazilian Atlantic Forest

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Using Conservative Condylectomy for Management of a Large Osteochondroma of the Mandibular Condyle With 6-Year Follow- up

Osteochondroma is a hamartomatous proliferation of cartilaginous tissue, which is the most common benign tumor of the long bones, but is relatively rare in the maxillofacial region. Most cases of mandibular condylar osteochondroma manifest with facial asymmetry or malocclusion with limited temporomandibular joint movements. Several approaches for management of this lesion have been proposed, as conservative condylectomy technique. This procedure has been suggested a valid approach to minimize facial asymmetry, contributing to the recovery of occlusion associated with no local tumor recurrence, and without condylar reconstruction procedure. Therefore, this article aims to describe a clinical report of a true osteochondroma of the mandibular condyle in a 35-year-old patient who was successfully treated using conservative condylectomy procedure.

Comparative morphology of pond, stream and phytotelm-dwelling tadpoles of the South American Redbelly Toads (Anura: Bufonidae: Melanophryniscus)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Budding Process During the Organogenesis of the Ventral Prostatic Lobe in Mongolian Gerbil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

CT study of the performance of reciprocating and oscillatory motions in flattened root canal areas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação da integração de esferas de hidroxiapatita sintética e de polietileno poroso em cavidades evisceradas de coelhos

Para a recuperação da estética facial,há necessidade de reposição do volume orbitário perdido em decorrência de eviscerações ou enucleações. Este estudo foi realizado com os objetivos de avaliar comparativamente a biocompatibilidade e a manutenção do volume orbitário com o uso de esferas de hidroxiapatita sintética e de polietileno poroso, na reconstrução de cavidades evisceradas de coelhos. Métodos: Para isso foram utilizados 56 coelhos albinos, submetidos à evisceração do olho direito, com colocação de esferas de hidroxiapatita sintética (G1 – 28 animais) ou polietileno poroso (G2 – 28 animais).Quatro coelhos de cada grupo foram sacrificados em 7 momentos experimentais: 7, 15, 30, 60, 90, 120 e 180 dias após a evisceração. Após o sacrifício, o conteúdo da cavidade orbitária direita foi removido e seccionado na porção central em duas hemi-metades,uma das quais foi preparada para exame histopatológico; exame ultra-estrutural em microscópio eletrônico de varredura foi feito em dois animais de 7, 60 e 180 dias, de ambos os grupos experimentais. Resumo 118 Resultados: Observou-se aos 7 dias, tecido conjuntivo frouxo, constituído de células inflamatórias e hemáceas, em meio à rede de fibrina, principalmente na periferia da esfera de hidroxiapatita e chegando até ao centro da esfera de polietileno; a reação tecidual tornou-se mais densa com o passar do tempo. Decorridos 60 dias, observou-se em G1, início de metaplasia óssea que se acentuou ao longo do experimento. Em todos os momentos experimentais, a inflamação,predominantemente macrofágica, foi muito mais acentuada em G1.O volume da cavidade esclero-corneana foi melhor mantido em G2. Conclusão: a esfera de hidroxiapatita sintética provoca mais inflamação que a de polietileno poroso e é menos eficiente na manutenção do volume orbitário... (Resumo completo, clicar acesso eletrônico abaixo)

Measurement of the inclusive Z cross section via decays to tau pairs in pp collisions at root s=7 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

MODIFIED INDEXING TECHNIQUE FOR THE IMMEDIATE INTERIM RESTORATION OF A DENTAL IMPLANT

Because of the functional and esthetic requirements of patients, different techniques have been proposed to reduce the time between dental implant placement and interim restoration fabrication. This article describes a modified indexing technique by using a surgical template for open-tray impression and definitive cast development during immediate loading procedures. This technique does not use a complete impression of the oral cavity and, therefore, is more comfortable, less time consuming, and less expensive. It also allows the fabrication of interim restorations with the optimal shape for developing an adequate emergence profile.

Missing transverse energy performance of the CMS detector

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Isolated Bilateral Blowout Fracture With Extensive Pneumatization of the Maxillary Sinuses

The blowout fracture injuries are often associated with fractures of the zygomatic complex and other facial structures but can also occur in an isolated fashion. Isolated bilateral blowout fractures are uncommon and constitute a challenge with regard to both assessment and reconstruction. This article describes an uncommon case of isolated bilateral blowout fracture in a patient with extensive pneumatization of the maxillary sinuses.