Effectiveness of intraoral suction systems and aspirating tips for evacuation of aluminum oxide particles during use of air-abrasion

Aim: The purpose of this study was to compare the effectiveness of a high-volume evacuation and a conventional intraoral suction system and aspirating tips for capturing aluminum oxide particles during use of an air-abrasion device. Methods: A phantom head was fixed at the dental chair head with secured a metallic device with 5 horizontal shafts, corresponding to operator's clockrelated working positions, and one vertical shaft to simulate the operator's nasal cavity. Petri plates were fixed to the shafts at distances of 20, 40 and 60 cm from the center of the oral cavity of the phantom head to collect the aluminum oxide particles spread over during air abrasion. The dust was aspirated with two types of suction tips used with both suction systems: a conventional saliva ejector and a saliva ejector customized by the adaptation of a 55-mm-diameter funnel. Results: The amount of particles showed that the greatest abrasive particle deposition occurred at a distance of 20 cm from the center of the oral cavity of the phantom head at 9 o'clock operatory position with the conventional saliva ejector attached to high-volume evacuation system. Conclusions: The greatest deposition of aluminum oxide particles occurred at the shortest distance between the operator and the center of the oral cavity, while using the high-volume evacuation system associated to the conventional suction tip.

Efeitos do manejo comportamental de incontinência fecal em adolescente

A incontinência fecal, também conhecida como encoprese, é um transtorno de evacuação que acarreta prejuízos ao desenvolvimento psicossocial e orgânico da criança e do adolescente, e que demanda atenção e cuidado de pais e profissionais de saúde. No amplo contexto de tratamento da encoprese, a psicoterapia constitui importante recurso, sendo a terapia comportamental apontada como uma das modalidades mais promissoras e eficazes para o tratamento dessa dificuldade de eliminação. Este artigo apresenta o estudo dos efeitos do manejo comportamental de quadro de incontinência fecal em um adolescente de 14 anos, atendido em clínica-escola de Psicologia do interior do Estado de São Paulo durante 14 meses. A partir do referencial teórico da análise do comportamento, foi desenvolvido, em contexto psicoterápico, um conjunto de estratégias comportamentais com o cliente, bem como orientações aos pais, visando à gradativa extinção encoprética. No decorrer desse processo, o cliente apresentou significativas aquisições comportamentais de uso regular do banheiro e adequado controle esfincteriano, monitoradas semanalmente, que possibilitaram a plena extinção das ocorrências de sujidade, sendo avaliado o efeito em follow-up realizado três meses após o encerramento dessa intervenção.

Mola hidatiforme completa e eclâmpsia: relato de caso

O desenvolvimento de pré-eclâmpsia ou eclâmpsia antes da 20ª semana deve levar à suspeita de mola hidatiforme. Descrevemos um caso de mola hidatiforme completa (MHC) e eclâmpsia concomitante em paciente com 20 anos que apresentava sangramento genital, anemia, tamanho uterino excessivo e cistos de ovário, associados a hipertensão arterial e proteinúria. Os níveis de b-hCG estavam elevados e a função tiroidiana, alterada. A ultra-sonografia mostrou-se compatível com MHC. Após o esvaziamento uterino apresentou cefaléia e alterações visuais, seguidas por convulsões tônico-clônicas que cessaram com sulfato de magnésio hepta-hidratado a 50%. No seguimento pós-molar foi diagnosticado tumor trofoblástico gestacional (TTG) prontamente tratado com quimioterapia. A associação de MHC e eclâmpsia determina esvaziamento uterino imediato e seguimento pós-molar rigoroso, pelo risco aumentado de desenvolvimento de TTG.

Influence of Hydatidiform Mole Follow-Up Setting on Postmolar Gestational Trophoblastic Neoplasia Outcomes A Cohort Study

OBJECTIVE: To assess the influence of hydatidiform mole (HM) management setting (reference center versus other institutions) on gestational trophoblastic neoplasia (GTN) outcomes. METHODS: This cohort study included 270 HM patients attending Botucatu Trophoblastic Diseases Center (BTDC, São Paulo State University, Brazil) between January 1.990 and December 2009 (204 undergoing evacuation and entire postmolar follow-up at BTDC and 66 from other institutions [OIs]). GTN characteristics and outcomes were analyzed and compared according to HM management setting. The confounding variables assessed included age, gravidity, parity, number of abortions and HM type (complete or partial). Postmolar GTN outcomes were compared using Mann-Whitney's test, chi(2) test or Fisher's exact test.RESULTS: Postmolar GTN occurred in 34 (34/204= 16.7%) BTDC patients and in 27 (27/66=40.9%) of those initially treated in other institutions. BTDC patients showed lower metastasis rate (5.8% vs. 48%, p = 0.003) and lower median FIGO (2002) score (2.00 0.00, 3.001 vs. 4.00 [2.00, 7.00], p = 0.003]. Multiagent chemotherapy to treat postmolar GTN was required in 2 BTDC cases (5.9%) and in 8 OI cases (29.6%) (p = 0.017). Median time interval between molar evacuation and chemotherapy onset was shorter among BTDC patients (7.0 [6.0, 10.0] vs. 10.0[7.0, 16.0], p = 0.040). CONCLUSION: BTDC patients showed GTN characteristics indicative of better prognosis. This underscores the importance of GTD specialist centers. (J Reprod Med 2012;57:305-309)

Pb-210 and composition data of near-surface sediments and interstitial waters evidencing anthropogenic inputs in Amazon River mouth, Macapa, Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Protocol to refine intestinal motility test in mice

We propose a new protocol intended to conform to the 3Rs (replacement, reduction, and refinement) principle, using animals fasted for 3 h to control intestinal motility, which reduced stress in the animals. In this new protocol, mice are deprived of food for a short time (3 h) and are not killed. The mice are observed until evacuation containing charcoal is observed, and the experimental results are based on the charcoal evacuation time. The present study may aid the formulation of recommendations that can be included in revised guidelines relating to the fasting time of mice. This new concept of an intestinal motility test conforms with respectful science.

Consumo de capim-elefante com diferentes idades fornecido para vacas leiteiras

The 30, 45 and 60 day-old elephant grasses were evaluated by monitoring their nutritional profile and DM (DMI) and NDF (NDFI) intake by crossbred lactating cows in a 3 × 3 Latin square trial, where the split-plots were the rumen evacuation times: 0, 2, 4 and 6 h after meal. Chemical composition, in vitro dry matter digestibility and ruminal content ranged with grass age. Means (in kg/cow/day) of DMI and NDFI of 30 day-old grass (8.0 and 5.3) were lower than those of grasses with 45 days (10.0 and 6.6) and 60 days (11.0 and 7.3). The maximum of rumen fill was observed at 4:22, 3:55 and 3:49 hours after feeding for treatments with 30, 45 and 60 day-old elephant grass, respectively. Rumen fill did not limit the DMI and NDFI of elephant grass, but the dry matter intake of 30 day-old grass may be affected by the wet content.

Mare's folliculogenesis: Assessment of ovarian and perifollicular vascular perfusion by doppler ultrasound

Background: Ultrasound Doppler is a new technology that has recently been used in large animal reproduction. As the conventional ultrasound (B-mode) it is a noninvasive technique, but with the advantage of allows the assessment of the hemodynamic of reproductive tract in real time. The observation of important features of the vascularization and changes that occur during physiological processes that were not previously seen on B-mode encourage a reassessment of the concepts already established on the events of the reproductive physiology of animals and their applications. Review: In attempt to re-understand the equine reproductive physiology and finding practical uses to this new technique, authors showed that, during the follicular deviation, features are observed by Doppler before being observed under B-mode ultrasound like changes in the speed of the blood flow two days before deviation of the follicle size and one day before the increase in blood flow area of the follicular wall. According to another study ovulation is characterized by a decreased blood flow of the follicular wall in the last four hours preceding it, as well as the serration of the granulosa layer and formation of a non vascularized apex, but in our ongoing study, the ability to decrease the vascularity was not found. Very vascularized follicles are associated with higher rates of oocyte maturation and pregnant that does less vascularized follicles in the preovulatory phase. Those follicles that have septated evacuation (or prolonged) showed more vascularization and serration of the granulosa one hour before ovulation than follicles that ovulate normally, and this vascularization includes the apex of the follicle, the follicular wall portion that is not vascularized in normal ovulation. Another study reported that hemorrhagic follicles have better vascularization of the follicular wall on the days preceding ovulation than follicles destined to ovulate. Some authors also showed that anovulatory follicles grow in size at the same rate as ovulatory follicles, but the percentage of vascularization of its wall is much smaller at 35 mm. Another study characterized that the vascular wall of the follicle that results in the first ovulation of the year is much smaller on the day before ovulation than the number of vessels present in a follicle that will ovulate in the middle of the breeding season. In these cases, the use of Doppler ultrasound can help to prevent economic losses as insemination of mares in cycles that are not able of resulting in pregnancy. This review aims to gather the information found in the literature about the characteristics of follicular hemodynamic of mares taking into account moments of deviation in follicle size, ovulation, ovulation failure and follicular viability. Conclusion: The Doppler technology has the potential to provide important information about the follicular environment and thus be used in practice in search of the perfect equine reproductive management, achieving better utilization of genetic material and increasing the financial return. The use of this new tool opens a large area for several interesting studies that will contribute to the knowledge of the physiological events of the mare for that this technique can soon be effectively applied.

Morphology and initial growth in the germination of dictyosperma album (bory) h. wendl. & drude ex scheffer (Arecaceae) seeds

Dictyosperma album, commonly known as Princess Palm, due to its graceful appearance and its ability to withstand strong hurricane force winds is largely used in landscaping areas. The aim of this work was to describe the diaspores (seeds with the stuck endocarp) morphology and the stages of the D. album germination process. Therefore we concluded that the species germination is of the tubular remote type and begins with the opening of a circular operculum in the fruit endocarp, through which emerges a bulbous and hollow structure, named cotyledonal petiole or embryophore. With the embryo growth, the endosperm is being gradually consumed. The embryo grows approximately up to 10 cm, when the dilation begins in its extremity. Starting from this extensive area, it begins the growth of the primary root and the opening of a longitudinal rift, through which emerges the aerial part that is composed by two sheaths that cover the first juvenile leaf. In this phase, the emergence of secondary roots is observed. The first leaves are simple and lance-shaped.

Avaliações clínicas e laboratoriais da intoxicação experimental por veneno de sapo em cães

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Intoxicação experimental por veneno de sapo em cães anestesiados: estudo clínico e laboratorial

Pós-graduação em Medicina Veterinária - FMVZ

A comunicação da informação em sites noticiosos regionais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da influência do sistema predominante e do somátorio de sintomas de constipação funcional sobre a terapêutica com fibra dietética

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Identificação precoce de neoplasia trofoblástica pós-molar pela curva de regressão normal da gonadotrofina coriônica humana

Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB

Análise quantitativa das partículas de óxido de alumínio geradas na abrasão a ar em consultório odontológico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)