Clinical, biomechanical and histological study on oophorectomy induced menopause

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

A castor oil-containing dental luting agent: effects of cyclic loading and storage time on flexural strength

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

Scientific collaboration network among Brazilian universities: an analysis in Dentistry area

This paper analyses the scientific collaboration network formed by the Brazilian universities that investigate in dentistry area. The constructed network is based on the published documents in the Scopus (Elsevier) database covering a period of 10 (ten) years. It is used social network analysis as the best methodological approach to visualize the capacity for collaboration, dissemination and transmission of new knowledge among universities. Cohesion and density of the collaboration network is analyzed, as well as the centrality of the universities as key-actors and the occurrence of subgroups within the network. Data were analyzed using the software UCINET and NetDraw. The number of documents published by each university was used as an indicator of its scientific production.

Declínio cognitivo e depressão em idosos institucionalizados e não institucionalizados: possibilidades de correlação

With aging, naturally occurs the decline of several functions. The depression (DP), pointed to be a risk factor for cognitive decline (DC), is frequent amongst elders. Activities aimed at cognitive rehabilitation (RC) can be protective for DP and DC. Objectives: Analyze the association between DC and DP on institutionalized elders (IDI) and non-institutionalized elders (IDNI) and verify the protective function (regarding DP and DC) of RC activities. Design and Method: For the analysis were selected 48 elders, from both genders, from where 24 were institutionalized and 24 were not. The subjects were distributed in four subgroups: 1) IDI participating RC (n=12); 2) non participant IDI on RC (n=12); 3) IDNI participating UNATI (“Open College for the Elderly”) and attendees of Memory Workshop (MW) (n=12) and; 4) IDNI participating UNATI, not attending MW (n=12). The data were gathered from the instruments: Mini Mental State Exam (MEEM) to determine the degree of DC and Beck Depression Inventory (BDI) to verify the symptomatology of DP. Results: From the general sample, 8,3% of the subjects presented indicatives of DC and 52,1% traces of DP. Lesser educated elders showed more incidence of DC and DP. There was no meaningful related to the DC prevalence and DP related to gender. Among the IDI there were more incidence of DC and DP than the IDNI. There were no meaningful differences in terms of scores acquired by MEEM and BDI for the subjects participating and not participating RC activities or MW. Conclusion: Therefore, it is necessary the development and application of curative and preventive strategies for depressive disorder. Special attention must be given for INI, more vulnerable to DP and DC.

Effect of delayed start of light-curing on microtensile bond strengths of two adhesives bonded to dentin

The aim of the present study was to evaluate the microtensile bond strength to dentin (ATBS) of two total-etching adhesives applied with delays of 1-30 s for curing. Fifty extracted molar teeth were used. Occlusal enamel was sectioned to expose flat dentin surface, which was further polished with 600-grit paper for smear layer standardization. The specimens were divided into two groups, G1: Single Bond total-etching adhesive (SB), and G2: Prime & Bond NT total-etching adhesive (PB). Each group was further divided into 5 subgroups according to the delayed light-cure initiation after the adhesive systems application (n=5): Subgroup 1s - 1 s; Subgroup 5s -5 s; Subgroup 10s - 10 s; Subgroup 20s - 20 s; Subgroup 30s - 30 s. Composite resin cones 5 mm height and 10 mm in diameter were fabricated. Specimens were stored in distilled water at 37 degrees C for 24 h and sectioned to obtain 1 x 1 mm(2) transversal specimens. Specimens were thermocycled and mu TBS was measured. Data were submitted to two-way ANOVA (AdhesiveXDelay time) and Tukey's test. The level of significance was set at 5%. The results in mean MPa(+/- SD) for interaction between adhesive and delay time were: PB/1s - 23.82 +/- 2.54a; SB/5s - 19.52 +/- 2.67b; PB/5s - 18.56 +/- 3.06bc; SB/1s - 15.49 +/- 2.69cd; SB/20s - 16.33 +/- 2.55d; SB/10s - 13.88 +/- 1.67d; PB/10s - 11.04 +/- 1.28e; PB/30s - 10.89 +/- 1.31e; PB/20s - 10.24 +/- 2.33e; SB/30s - 9.19 +/- 1.91e. It was concluded that light-cure initiation timing of total-etching adhesives interferes negatively with mu TBS to dentin. (C) 2014 Elsevier Ltd. All rights reserved.

Bonding of facial silicon with nanoparticles to an acrylic resin substrate

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

Continuous Electrical Current and Zinc Sulphate Administered by Transdermal Iontophoresis Improves Skin Healing in Diabetic Rats Induced by Alloxan: Morphological and Ultrastructural Analysis

Purpose. Evaluated the effects of continuous electrical current (CEC) or zinc administrated by transdermal iontophoresis (Zn+TDI). Methods. 120 male Wistar rats were submitted to an incision surgery at the anterior region of abdomen and distributed into 6 experimental groups with 40 animals: 3 diabetic groups and 3 normal groups, untreated and treated with CEC alone or with Zn+TDI. Each group was further divided into 4 subgroups with 10 rats each to be evaluated on the 4th, 7th, 14th, and 21st day after surgery. In each period, clinical and laboratory parameters from the animals were analyzed. Results. The analysis by optical and scanning electron microscopy showed a delay in the phases of wound healing in diabetic rats without treatment in all periods of the experiment; breaking strength (BS) was significantly reduced in skin scars of untreated diabetic rats when compared to other groups. In contrast, BS in skin scars of nondiabetic groups and diabetic rats treated with Zn+TDI showed significant increase in those, besides not presenting delayed healing. Conclusion. Electrical stimulation of surgical wounds used alone or in association with zinc by TDI is able to consistently improve the morphological and ultrastructural changes observed in the healing of diabetic animals.

Scanning Electron Microscopy of Male Terminalia and Its Application to Species Recognition and Phylogenetic Reconstruction in the Drosophila saltans Group

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

Proteomic Analysis of Gastrocnemius Muscle in Rats with Streptozotocin-Induced Diabetes and Chronically Exposed to Fluoride

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

Comparative study of ultrasonographic methods for assessment of pregnancy age in bitches

Compared with human beings, the application of ultrasound in estimating fetal age in bitches is limited due to the large variation of breed and size in this species. Several formulas were developed to calculate the gestational age and to provide the date of birth in dogs, but the efficacy of these formulas on the different gestational stages and dog breeds is unknown. The aim of this study was to compare sonographic methods for assessment of gestational age and days before parturition in dogs with different body weights and pregnancy stages. Twenty seven bitches of several sizes were examined and divided into three groups according to the initial body weight (A: <10kg; B: 10.1 - 20kg; C: >20.1kg); then each group was divided into three subgroups according to pregnancy stage (1st: 18 to 30 days; 2nd: 31 to 40 days; 3rd: >40 days) estimated according to the first day of copulation. Ultrasonography was performed weekly from the first stage of pregnancy. In the first and second stage the following formulas were applied: GA = (6XGSD) + 20; DBP = 65 - IG; by Nyland & Matton (2002); GA: gestational age; DBP: days before parturition; DSG: gestational sac diameter; in the third stage: DBP = 61,2 - (24,6 X BD); DBP = 43,5 - (10,9 X CD); by Burk & Ackerman (1996); BD: biparietal diameter; CD: body diameter, and: GA = (15 X BD) + 20; GA = (7 X CD) + 29; GA = (6 X BD) + (3 X CD) + 30; DBP = 65 - GA; by Nyland & Matton (2002). Results were compared statistically. The equations proposed by Nyland & Matton (2002), were more accurate in all pregnancy stages, with a margin of error of only three days, regardless of the size of the animal; therefore these methods are the best option in veterinary practice.

Depressão e apoio social percebido por mães de crianças hospitalizadas

This study was performed as a requirement of the final course in Nursing. The study is cross-cutting, in order to identify associations between socioeconomic factors, education, child hospitalization in the ICU or not, degree of depression and level of social support (material, affective, emotional, informational and positive social interaction) and how to identify subgroups of mother - child vulnerable. Constitute themselves as subjects, mothers of children 0 to 17 years, 11 months and 29 days in hospital after the second day of hospitalization in the pediatric unit of a State Hospital Interior Paulista. Data collection was initiated after obtaining the assent of the Research Ethics Committee, as well as signing the consent form. We used the following instruments to collect data: the data form for socioeconomic and hospitalization; Beck Depression Inventory and Medical Outcomes Study (MOS). We obtained the result that there is a strong association between availability and social support and income per capita and the degree of depression, but did not find an association between time and hospital stay and whether the child was admitted to the ICU or not. We conclude that it is necessary to establish treatment services from the patient’s family, plus an appropriate social service support to meet this big demand for mothers who need support

Efeito do tratamento da superfície dental com os lasers Nd:YAG e Er: Yag na adesão da resina composta à dentina recém clareada

To evaluate the effect of surface treatment with Er:YAG and Nd:YAG laser on resin composite bond strength to recently bleached dentin. Material and Methods: In this study 120 bovine incisors were used and distributed into two groups: Group C: without bleaching treatment; Group B: with bleaching treatment (35% hydrogen peroxide). Each group was divided into three subgroups: Subgroup N: without laser treatment; Subgroup Nd: irradiation with Nd:YAG laser; Subgroup Er: irradiation with Er:YAG laser. Next, the adhesive system (Adper Single Bond 2) was applied and composite buildups were constructed with Z350 composite. The teeth were sectioned to obtain dentin-resin sticks (1x1mm) and analyzed by microtensile bond testing. The data were statistically analyzed by the ANOVA and Tukey tests. Results: The results showed that the bond strength values in the bleached control group (16.17 MPa) presented no significant difference in comparison with the group bleached and irradiated with Er:YAG laser (14.69 MPa). The non bleached control group (26.79 MPa) presented significant difference in bond strength when compared with the non bleached group irradiated with Er:YAG laser (22.82 MPa) and with the group treated by bleaching and irradiation with Nd:YAG laser (28,792 MPa). The group without bleaching treatment and irradiated with Nd:YAG (36.1 MPa) presented a significant increase in bond strength in comparison with the other groups. Conclusion: The use of Nd:YAG laser on bleached specimens was able of completely reversing the immediate effects of bleaching, obtaining bond strength values similar to those of the control group

Exercício físico, marcadores inflamatórios e genótipo da APOE em idosos com comprometimento cognitivo leve e idosos cognitivamente preservados

Pós-graduação em Ciências da Motricidade - IBRC

Exercício físico e funções cognitivas em pacientes com doença de Alzheimer: associação com BDNF e APOE

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Some considerations about cohomology of finite groups

In this work we present some considerations about cohomology of finite groups. In the first part we use the restriction map in cohomology to obtain some results about subgroups of finite index in a group. In the second part, we use Tate cohomology to present an application of the theory of groups with periodic cohomology in topology.