Vila Velha, Brazil
Vila Velha, Brazil

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Marcato D.G.,University Of Vila Velha Uvv | Sampaio J.D.,University Of Vila Velha Uvv | Alves E.R.B.,University Of Vila Velha Uvv | de Jesus J.S.A.,University Of Vila Velha Uvv | And 3 more authors.
Arquivos Brasileiros de Endocrinologia e Metabologia | Year: 2014

Objective: Sitting height (SH) is an important parameter in the evaluation of children with growth and pubertal disorders. Besides this, it has been viewed as a biomarker of cardiovascular risk, which is increased in adults with relatively short legs. So, the aim of this study was to evaluate the relationship between body proportions and cardiovascular risk markers in children. Subjects and methods: Eight hundred and seventeen children aged 6-13 years were evaluated. Weight, height, sitting-height (SH), sitting-height/height (SH/H), body mass index (BMI) and blood pressure (BP) were assessed and converted to standard deviation scores (SDS) for age and sex. Statistical analyses were performed. Results: There was a positive association of BMI SDS with SH and SH/H SDS (p < 0.001). Overweight children showed SH 0.8 SDS superior to eutrophic children (p < 0.001). SH SDS was also directly related to BP SDS, but this association was not independent of the association between obesity and BP when assessed by multiple regression analyzes. Conclusion: Measures of SH are strongly associated with BMI and BP in children, although the association between SH and BP is probably dependent on the association of both those variables with BMI. This is (an) important information for correct interpretation of SH values in children. © ABE&M todos os direitos reservados.

Wen Z.,Pharmacy School | Li G.,Yantai University | Lin D.-H.,Pharmacy School | Wang J.-T.,Pharmacy School | And 2 more authors.
Yaoxue Xuebao | Year: 2013

The present study is to establish Caco-2/HT29-MTX co-cultured cells and investigate the transport capability of PLGA nanoparticles with different surface chemical properties across Caco-2/HT29-MTX co-cultured cells. PLGA-NPs, mPEG-PLGA-NPs and chitosan coated PLGA-NPs were prepared by nanoprecipitation method using poly(lactic-co-glycolic acid) as carrier material with surface modified by methoxy polyethylene glycol) and chitosan. The particle size and zeta potential of nanoparticles were measured by dynamic light scattering. Coumarin 6 was used as a fluorescent marker in the transport of nanoparticles investigated by confocal laser scanning microscopy. The transport of furanodiene FDE loaded nanoparticles was quantitively determined by high performance liquid chromatography. Colchicine and nocodazole were used in the transport study to explore the involved endocytosis mechanisms of nanoparticles. Distribution of the tight junction proteins ZO-1 was also analyzed by immunofluorescence staining. The results showed that the nanoparticles dispersed uniformly. The zeta potential of PLGA-NPs was negative, the mPEG-PLGA-NPs was close to neutral and the CS-PLGA-NPs was positive. The entrapment efficiency of FDE in all nanoparticles was higher than 75%. The transport capability of mPEG-PLGA-NPs across Caco-2/HT29-MTX co-cultured cells was higher than that of PLGA-NPs and CS-PLGA-NPs. Colchicine and nocodazole could significantly decrease the transport amount of nanoparticles. mPEG-PLGA-NPs could obviously reduce the distribution of ZO-1 protein than PLGA-NPs and CS-PLGA-NPs. The transport mechanism of PLGA-NPs and mPEG-PLGA-NPs were indicated to be a combination of endocytosis and paracellular way, while CS-PLGA-NPs mainly relied on the endocytosis way. PEG coating could shield the surface charge and enhance the hydrophilicity of PLGA nanoparticles, which leads mPEG-PLGA-NPs to possess higher anti-adhesion activity. As a result, mPEG-PLGA-NPs could penetrate the mucus layer rapidly and transport across Caco-2/HT29-MTX co-cultured cells.

Tacon K.C.B.,Federal University of Goais | Santos H.C.O.,Federal University of Goais | Parente L.M.L.,Federal University of Goais | da Cunha L.C.,Federal University of Goais | And 4 more authors.
Acta Cirurgica Brasileira | Year: 2011

Purpose: To evaluate the effect the healing activity of diode laser Indium Gallium Aluminum Phosphorus (InGaAlP) ë660nm on healing of surgical wounds in rats. Methods: Fifty-four female Wistar rats were used, divided into three groups (n=18) and subdivided into three subgroups (n=6) to be studied in 5, 10 and 15 th days after surgical procedures. The wound was induced in the dorsal-cervical using punch. The lesions were irradiated on alternate days with InGaAlP laser, the energy densities of 3J/cm 2 (L3) or 6J/cm 2 (L6). The control group received no irradiation. At 5, 10 and 15 th days after surgery the animals were euthanized and the repair area was removed and histological sections were stained with hematoxylin-eosin and picrossírius. We evaluated macroscopic and histological lesions in the times cited, as well as morphometric analysis of angiogenesis and collagen content. Results: The wound healing activity InGaAlP laser was evidenced by increased angiogenesis group L3 and L6 in relation to control group (CG) at the 5 th day (p=0.0001) and decreased polymorphonuclear infiltrate and hemorrhage (p=0.045 and p=0.07 respectively) in the groups L3 and L6 in relation to control group (GC). On the 10 and 15 th days was also observed in groups treated with laser L3 and L6 stimulation was pronounced fibroplasia (p=0.0003 and p=0.034 respectively) when compared with the control group (CG). Conclusion: The InGaAlP laser acted positively on the healing of skin wounds in rats.

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