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Search Results: 1 - 10 of 273063 matches for " Jo?o de Jesus Viana Pinheiro "
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Pathophysiological mechanisms of blindness in facial trauma: A review  [PDF]
André Luis Ribeiro Ribeiro, Adriana Maria Melo dos Reis, Driene Góes Ramalho, Sérgio de Melo Alves Júnior, Joo de Jesus Viana Pinheiro
Open Journal of Stomatology (OJST) , 2013, DOI: 10.4236/ojst.2013.32032

Blindness is a serious complication that can occur after facial trauma and may represent the loss of one of the most useful senses in the human relationship with the world—the sight. This study aims to review the pathophysiology of blindness related to facial trauma in order to identify the mechanisms by which it develops and to recognize the signs and symptoms required to establish proper diagnosis and treatment. Blindness following facial trauma may occur due to mechanisms that involve injury to the eyeball, optic nerve and eyelids. The leading causes of blindness resulting from facial trauma, and which may be altered by medical interference, are related to retrobulbar hemorrhage and traumatic optic neuropathy, which require extremely rapid diagnosis and can be accomplished with the resources available in most trauma-based emergency services. The authors conclude that loss of vision tends to be irreversible in direct eyeball and optic nerve lesions, but can be prevented in retrobulbar hemorrhage and traumatic optic neuropathy. Eyeball and, especially, sight accuracy evaluation should be included in the initial care of trauma patients, so that the lesions that might lead to loss of vision are diagnosed and treated early.

Treatment of central giant cell lesions using bisphosphonates with intralesional corticosteroid injections
Newton da Silva, Aline Semblano Carreira, Erick Pedreira, Fabrício Tuji, Karem Ortega, Joo de Jesus Viana Pinheiro
Head & Face Medicine , 2012, DOI: 10.1186/1746-160x-8-23
Abstract: Central giant cell lesions (CGCLs) are benign intraosseous proliferative lesions that occur in the maxilla and mandible primarily during the first to third decades of life [1]. Histologically, multinucleated giant cells are prominent throughout the fibroblastic stroma and are often clustered around areas of haemorrhage [2].CGCLs represent a treatment challenge. The clinical behaviour is extremely variable in that certain lesions are completely silent and grow very slowly whereas others behave more aggressively [3]. In recurrent or aggressive lesions, en bloc resection is a treatment option, but this procedure results in large surgical defects [4,5]. Nonsurgical treatment methods, such as intralesional corticosteroid injections and systemic calcitonin or interferon-α, are increasingly being used [4,6-11].Steroids appear to inhibit the production of extracellular lysosomal proteases in multinucleated giant cells. In addition, steroids reduce bone resorption and induce the apoptosis of osteoclastic cells [5].Bisphosphonates are widely used to inhibit osteolysis in conditions such as osteoporosis, Paget’s disease and bone destruction through metastatic cancer. Landesberg et al. [1] reported three cases of CGCLs treated with bisphosphonates. The first case showed the successful treatment with a single administration of intravenous bisphosphonates, the second resulted in a 30% reduction of the lesion, and the last case showed stabilisation but no regression of the lesion.Based on such evidence, the purpose of this study was to report a case of CGCL that had been treated with intralesional corticosteroids and oral bisphosphonates.A 36-year-old male with no relevant medical history was referred for the evaluation of swelling on the left side of his jaw, which had been associated with paraesthesia for the previous 5 months. On extra-oral examination, a slight swelling in the chin region was noted. Intraorally, the examination revealed swelling of the mouth vestibule and high
Primary leiomyosarcoma of the mandible: A case report
Viana Pinheiro,Joo de Jesus; Melo Alves,Sérgio de; Okuda,Edson; Antonio Jorge,Waldir; Gastaldoni Jaeger,Ruy; Soares de Araújo,Ney;
Medicina Oral, Patología Oral y Cirugía Bucal (Internet) , 2007,
Abstract: the aim of this article is to describe a case of leiomyosarcoma of the mandible with immunohistochemical analysis that was useful in making the final diagnosis. a 40-year-old woman was referred to the stomatology clinic of s?o paulo tatuapé hospital, , for evaluation of a lesion on the left side of the mandible. this lesion presented a fast growth in the last 6 months. intraoral examination showed a firm, fixed, red colored mass measuring, approximately 60-mm in diameter. no lymph nodes involvement was found. the radiographic examination showed a lytic lesion showed ill-demarcated radiolucent with facial and lingual cortical bone destruction. microscopic examination of the mandibular lesion showed a neoplasm composed by interlacing fascicles of spindle-shaped cells. most of the cells presented a blut-ended elongated shape. a marked cellular pleomorphism was observed, represented by cells with irregular shape and abundant eosinophilic cytoplasm. nuclei were large, hyperchromatic, either vacuoled or cigar-shape. the cytoplasm of the cells stained red with masson?s trichrome stain. neoplastic cells expressed vimentin, smooth-muscle actin, hhf-35 and desmin. these findings were consistent with the diagnosis of leiomyosarcoma.
Progressive hemifacial atrophy: Case report
da Silva Pinheiro,Thiago Pastor; Camarinha da Silva,Camila; Limeira da Silveira,Carolina Souza; Ereno Botelho,Patrícia Cristina; Rodrigues Pinheiro,Maria das Gra?as; Viana Pinheiro,Joo de Jesus;
Medicina Oral, Patología Oral y Cirugía Bucal (Internet) , 2006,
Abstract: progressive hemifacial atrophy, also known as parry-romberg syndrome, is an uncommon degenerative and poorly understood condition. it is characterized by a slow and progressive atrophy affecting one side of the face. the incidence and the cause of this alteration is unknown. a cerebral disturbance of fat metabolism has been proposed as a primary cause. this can be the result of a trophic malformation of cervical sympathetic nervous system. possible factors that are involved in the pathogenesis include trauma, viral infections, heredity, endocrine disturbances and auto-immunity, among others. the most common complications that appear in association to this health disorder are: trigeminal neuritis, facial paresthesia, severe headache and epilepsy, being this last one the most frequent complication of the central nervous system. characteristically, the atrophy progresses slowly for several years and, soon after, it become stable. now, plastic surgery with graft of autogenous fat can be performed, after stabilization of the disease, to correct the deformity. orthodontic treatment can help in the correction of any associated malformation. the objective of this work is, through the presentation of a clinical case, to accomplish a literature review concerning general characteristics, etiology, physiopathology, differential diagnosis and treatment of progressive hemifacial atrophy.
The importance of early diagnosis and an accurate tumoral evaluation in the treatment of mandibular osteossarcoma
Ribeiro, André Luis Ribeiro;Nobre, Rafaela Moutinho;Alves Junior, Sérgio de Melo;Souza, Patricia de A. R. da Silva e;Silva Júnior, Newton Guerreiro da;Pinheiro, Joo de Jesus Viana;
Revista Odonto Ciência , 2010, DOI: 10.1590/S1980-65232010000300020
Abstract: purpose: osteosarcoma is a malignant bone neoplasm with aggressive clinical evolution which is usually diagnosed in late stages of the disease, when primary tumor reaches significant dimensions. in many cases, an aggressive surgical treatment, which includes major bone resection and is sometimes associated with radiotherapy and chemotherapy, is required for better control of local recurrence and metastasis in such lesions. case description: this paper reports an early-diagnosed case of osteosarcoma in the left side of the mandible and an accurate evaluation of the tumor involvement by means of cone beam computerized tomography. conclusion: the early diagnosis of osteosarcoma is an uncommon condition that has good influence both on the treatment and prognosis of such tumor. this early diagnosis and an accurate evaluation of the tumor involvement were determining factors for conservative, curative surgical procedure with minimum sequelae. the pericementary space should be especially observed, since its thickness is a much more common feature in osteosarcomas. studies that allow for identifying osteosarcomas in earlier stages should be conducted in order to enable longer survival and better quality of life.
Seed Priming and Tolerance to Salt and Water Stress in Divergent Grain Sorghum Genotypes  [PDF]
Charles Lobo Pinheiro, Hellen Thayse Nascimento Araújo, Selma Freire de Brito, Marcos da Silva Maia, Jesimiel da Silva Viana, Sebasti?o Medeiros Filho
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.94047
Abstract: Tolerance to water and salt stress during germination and growth of agricultural species might have superior results when seeds are submitted to priming processes. The objective of the present study was to evaluate the use of hydropriming and hormonal priming with gibberellic acid (GA3) on the tolerance of divergent genotypes of sorghum to salt and water stress during germination and seedling growth. The genotypes analyzed were cultivar BRS 330 and lineage 201420, which are the most and least tolerant to water and salt stress, respectively. Sowing was undertaken under control (no stress), water stress (-0.6 MPa), and salt stress (20 dS·m-1) conditions, and the seeds were subjected to the following treatments: control-no immersion; hydropriming-immersion for 2 hours in distilled water; and hormonal priming-immersion in GA3 solutions, at concentrations of 50, 75, and 100 ppm, for 2 hours. After soaking, the seeds were dried for 24 hours at a temperature of 30°C ± 2°C. The variables analyzed were percentage and germination speed index, root and shoot lengths, and root/shoot ratio. The stress conditions analyzed negatively affected the two genotypes; however, the seeds that underwent priming processes improved the performance of the genotypes under salt and water stress conditions, especially when using seeds of the more tolerant genotype (BRS 330) subjected to hormonal priming at 100 ppm GA3 concentration.
Dental Caries Prevalence in the Children of the District of Mosqueiro in the City of Belém, State of Pará, Brazil
Helder Henrique Costa PINHEIRO,Izamir Carnevali de ARAUJO,Marizeli Viana de Arag?o ARAúJO,Alda Fran?a COSTA
Pesquisa Brasileira em Odontopediatria e Clínica Integrada , 2006,
Abstract: Objective: The study had the objective to check the dental caries prevalence in the children attend by the communitarian agents of health of the Program Health of the Family of the District of Mosqueiro, City of Belém, State of Pará, Brazil, with the purpose of subsidizing the projection of the actions of promotion, prevention and treatment of the staff of oral health. Method: 887 children were examined in the age groups from 18 to 36 months, 5 years and 12 years of age in accordance with the standards recommended by the WHO, checking the events of the caries in the studied population. Results: The caries prevalence in the population of the district of Mosqueiro to 18-36 months of age was 31.68%, progressing in spite of passing the ages, brought near attacking 63.69% of the 12-year-old children. The decayed, to be extracted, filled index (DEF index) to five years found in Mosqueiro went of 3.57 and the decayed, missing, filled index (DMF index) to 12 years went of 1,80. Regarding the marks proposed by the World Health Organization for the year of 2000, the reached only one was in the age of 12-year-old children, in which the DMF index of 1,80 was less than three. Conclusion: The caries prevalence in the population of Mosqueiro is due to implement effective actions for the control of the disease in this territory.
Correlation between body mass index and anthropometric indexes of abdominal obesity in patients with type 2 diabetes mellitus
Soraia Pinheiro Machado,Daniele Gomes Cassias Rodrigues,Kátia Danielle Araújo Louren?o Viana,Helena Alves de Carvalho Sampaio
Revista Brasileira em Promo??o da Saúde , 2012,
Abstract: Objective: To investigate the correlation between body mass index and anthropometric indicators of abdominal obesity in a group of patients with type 2 diabetes. Methods: A cross sectional study was conducted with 130 type 2 diabetic patients followed in a reference institution in Fortaleza, Ceará. Patients answered a semi-structured formcontaining demographic and socioeconomic data, with the measures of weight, height and waist circumference (WC). We calculated the body mass index (BMI) to identify general obesity, according to parameters of the World Health Organization. Abdominal obesity was identified based on the indicators CC, waist / height (WH) and conicity index (CI). We used the Student t test and Mann-Whitney test for comparison of averages and chi-square test for proportions. The correlation between BMI and other indicators was evaluated by Spearman coefficient. We adopted a significance level of 5%. Results: The study group was predominantly female 72 (55.4%) with a mean age of 60.8 ± 10.0 years. The overall obesity was present in 42 (32.3%) subjects, while abdominal obesity appeared in 110 (84.6%), 112 (86.2%) and 119 (91.5%), according to the CI, the CC and WH, respectively. The CC (p <0.001) and WH (p <0.001) were presented correlated with BMI, but not the CI (p = 0.084) in men (p <0.001, p <0.001 and p = 0.378 for CC, WH and CI, respectively) and females (p <0.001, p <0.001 and p = 0.090). Conclusion: The BMI showed positively correlated with waist circumference and waist / height, but not with the conicity index
Ground penetrating radar digital imaging of a collapsed paleocaves
Thales Eduardo Silva de Jesus,Joo Andrade dos Reis Júnior,David Lopes de Castro,Francisco Pinheiro Lima-Filho
Geologia USP : Série Científica , 2012, DOI: 10.5327/z1519-874x2012000300005
Abstract: In this paper we present the methodological procedures for digital imaging of collapsed paleocaves in carbonate tufas using ground penetrating radar (GPR). These carbonate deposits occur in the Quixer region, Cear State (NE Brazil), on the western border of the Potiguar Basin. Collapsed paleocaves are exposed along a state road, which were selected to this study. We chose a portion of the called Quixer outcrop for making a photomosaic and caring out a GPR test section to compare and parameterize the karst geometries on the geophysics line. The results were satisfactory and led to the adoption of criteria for the interpretation of others GPR sections acquired in the region of the Quixer outcrop. Two grids of GPR lines were acquired; the first one was wider and more spaced and guided the location of the second grid, denser and located in the southern part of the outcrop. The radargrams of the second grid reveal satisfactorily the collapsed paleocaves geometries. For each grid has been developed a digital solid model of the Quixer outcrop. The first model allows the recognition of the general distribution and location of collapsed paleocaves in tufa deposits, while the second more detailed digital model provides not only the 3D individualization of the major paleocaves, but also the estimation of their respective volumes. The digital solid models are presented here as a new frontier in the study of analog outcrops to reservoirs (for groundwater and hydrocarbon), in which the volumetric parameterization and characterization of geological bodies become essential for composing the databases, which together with petrophysical properties information, are used in more realistic computer simulations for sedimentary reservoirs.
Public Administration, NGOs and Private University in Teaching in Professional Master’s Courses  [PDF]
Diego Santos Vieira de Jesus, Joo Luiz de Figueiredo
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.911125
Abstract: The aim is to examine the relations between public administration, NGOs and private universities in teaching in professional master’s courses, taking as a case study the relationship between the Municipal Secretary of Culture of Rio de Janeiro, the NGOs managers of cultural equipments in the city and ESPM-Rio in proposing tasks and activities for students for the Professional Master’s Program in Creative Economy Management. The central argument points out that the interaction between the public administration, the market and the university favors the exchange of knowledge and creates practical learning situations for students.
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