14 research outputs found
An Interesting Case of Recurrent Small Bowel Obstruction
Sclerosing mesenteritis is associated with a spectrum of diseases which include mesenteric lipodystrophy and mesenteric panniculitis. This inflammatory and fibrosing disorder can affect the small and large bowel wall and mesenteric vessels by exerting a mass effect. The following case highlights the difficulties with diagnosing and managing this unusual disease. A 64-year-old man presented with acute central abdominal pain, radiating to his back, and profuse vomiting. He was diagnosed clinically with small bowel obstruction. He had had an episode of small bowel obstruction 6 years earlier. At this time, he underwent an exploratory laparotomy, and a mass was identified in the small bowel mesentery. The features were thought to be in keeping with sclerosing mesenteritis. He had a dramatically favourable response to the initiation of prednisolone. He continued to be well and asymptomatic for a further 5 years on long-term maintenance low-dose steroids and 6-mercaptopurine. He re-presented in 2009 (six years after initial presentation) with very severe acute abdominal pain and vomiting. He had no recent change in weight or appetite, and had not had time off work. He underwent a second laparotomy and the tissue diagnosis was of metastatic carcinoid tumour involving the small bowel mesentery. This is the first case to our knowledge where sclerosing mesenteritis has been confirmed histologically on biopsy and then subsequently diagnosed with histologically proven carcinoid tumour. For this particular reason it must be always remembered that sclerosing mesenteritis is a ‘pathological’ and not a radiological diagnosis and that a large proportion of cases are associated with neoplasia
Land cover, land use and malaria in the Amazon: a systematic literature review of studies using remotely sensed data
The nine countries sharing the Amazon forest accounted for 89% of all malaria cases reported in the Americas in 2008. Remote sensing can help identify the environmental determinants of malaria transmission and their temporo-spatial evolution. Seventeen studies characterizing land cover or land use features, and relating them to malaria in the Amazon subregion, were identified. These were reviewed in order to improve the understanding of the land cover/use class roles in malaria transmission. The indicators affecting the transmission risk were summarized in terms of temporal components, landscape fragmentation and anthropic pressure. This review helps to define a framework for future studies aiming to characterize and monitor malaria
Comparação de métodos diretos de extração e quantificação dos teores de clorofilas em folhas do capim-Tifton 85
MATURATION STAGES OF FRUITS AND PHYSIOLOGICAL SEED QUALITY OF Physalis ixocarpa BROT. EX HORMEN
Probiótico na ração ou inoculado em ovos embrionados: 1. desempenho de pintos de corte desafiados com Salmonella Enteritidis
Eficácia do florfenicol e da oxitetraciclina no controle de Aeromonas hydrophila em pacu (Piaractus mesopotamicus)
Determinou-se a concentração eficaz de oxitetraciclina (OTC) e florfenicol (FFC) no tratamento de Aeromonas hydrophila em pacu (Piaractus. mesopotamicus). Os pacus foram submetidos à captura duas vezes ao dia por quatro dias e em seguida foram infectados com A. hydrophila (2,4x10(7) bactéria mL-1). Os tratamentos utilizados foram: controle sem infecção (CSI), controle com infecção (CCI) e tratados com 110,0; 140,0 e 170,0mgOTC.kg-1, e 5,0; 10,0 e 15,0mgFFC.kg-1. As variáveis de qualidade da água foram monitoradas diariamente. Após o tratamento, no CSI dos dois testes, ocorreu 100% de sobrevivência. Nos testes com OTC, no CCI, a sobrevivência foi de 29,2%; em 110,0mg.kg-1, 37,5%; em 140,0mg.kg-1, 29,2%; e em 170,0mg.kg-1, 50,0%. Nos testes com FFC, foi eficaz com 10,0mg.kg-1, e no CCI a sobrevivência foi de 76,9%; em 5,0mg.kg-1, 81,81%; em 10,0mg/L.kg-1, 100% e em 15,0mg.kg-1, 87,5%. A OTC, em concentrações de até 170,0mg.kg-1 de ração, não é eficaz para o controle de A. hydrophila em pacu, e o FFC é eficaz na concentração de 10,0mg.kg-1 e ambos não alteram as variáveis de qualidade de água
Histopathological changes in avian kidney caused by Bothrops insularis (jararaca ilhoa) venom and a phospholipase A2-containing fraction
The histopathological changes induced in
avian kidney by the intramuscular injection of Bothrops
insularis (jararaca ilhda) venom and its phospholipase
A2 (PLA2)-containing fraction were examined. Acute
experiments (3 h and 24 h) with B. insularis crude
venom (20 pg and 80 pg) or its PLA2-contaning fraction
(10 pg and 40 pg) resulted in significant structural
damage to the kidneys of 5-12-day-old chicks.
Histopathological analysis indicated that the venom and
its fraction acted on the renal tubules and glomeruli. The
morphological changes, although widespread, varied in
intensity from cell to cell, and from tubule to tubule in
venom-injected chicks. The tubular and glomerular
changes produced by the venom and its PLA2-containing
fraction may be the result of a direct cytotoxic effect
potentiated by ischemia-related disturbances in the
regional hemodynamics. The venom and its fraction
affected more segments along reptilian-type nephrons
than along mammalian ones. This divergent sensitivity to
the venom and its fraction may reflect the speciesspecific
characteristics of B. insularis snake, an example
of geographical isolation influencing its diet which is
almost exclusively avian
Ecotoxicological assessment of sediments from an urban marine protected area (Xixová-Japuí State Park, SP, Brazil)
Assessing the sediment quality of the Laje de Santos marine state park and other marine protected areas of the central coast of São Paulo (Brazil)
Objetivos de organizações culturais sem fins lucrativos e suas fontes financiadoras
A fim de compreender as mudanças no contexto das organizações culturais, apresenta-se uma reflexão sobre as transformações nos objetivos de dois grupos teatrais sem fins lucrativos de Florianópolis-SC e sobre a influência que os critérios requeridos pelas fontes financiadoras podem ter exercido neste processo. Quatro importantes categorias de análise guiaram a pesquisa: grupo teatral, objetivos, fontes de financiamento e critérios de avaliação de desempenho, orientando as entrevistas semi-estruturadas realizadas com os responsáveis pelas respectivas organizações e a observação constante das pesquisadoras em encontros, reuniões, ensaios e apresentações de espetáculos envolvendo as organizações pesquisadas. A pesquisa, predominantemente qualitativa e longitudinal gerou reflexões ante os dados coletados, com destaque para a história do Erro Grupo, que apresentou um forte distanciamento de seus propósitos iniciais ao longo de sua trajetória, por direcionar suas ações à captação de recursos junto às fontes financiadoras em detrimento de sua dedicação às atividades teatrais