Caregivers' evaluation of an educational material targeted to children with hydrocephalus.

PURPOSE: Modern pediatric neurosurgery succeeded in reducing ventricle-peritoneal shunt malfunctions and shunt revisions. However, some children may be submitted to many surgeries, posing burden to their caregivers. And most of caregiver assume responsibility for care without emotional preparation. It is up to health professionals to carry out the educational process. The aim of this study was to evaluate the knowledge, attitude, and practice of informal caregivers of children with hydrocephalus before and after intervention with previously developed educational material. METHODS: This is a quasi-experimental, before-and-after study conducted with 32 informal caregivers of children with hydrocephalus. Data collection occurred in three stages: pre-test, educational intervention through educational material, and post-test. The knowledge, attitude, and practice survey was used as a pre-test and post-test assessment tool. RESULTS: The mean score in the three domains (knowledge, attitude, and practice) was lower in the pre-test compared to the post-test. After caregivers read the educational material, the correct answer rate increased by 17% in the knowledge domain and 21.4% in the practice domain, with p values of < 0.01. In the attitude domain, there was a non-significant increase of 0.06 (2.0%, p = 0.161) points in the mean score between the pre-test and the post-test. CONCLUSION: The educational material enables the acquisition of knowledge of informal caregivers of children with hydrocephalus. This can be used by health professionals to strengthen the bond between professional care staff and family, and to facilitate the educational process.

S-adenosyl-L-methionine (SAMe) halts the autoimmune response in patients with primary biliary cholangitis (PBC) via antioxidant and S-glutathionylation processes in cholangiocytes.

S-adenosyl-L-methionine is an endogenous molecule with hepato-protective properties linked to redox regulation and methylation. Here, the potential therapeutic value of SAMe was tested in 17 patients with PBC, a cholestatic disease with autoimmune phenomena targeting small bile ducts. Nine patients responded to SAMe (SAMe responders) with increased serum protein S-glutathionylation. That posttranslational protein modification was associated with reduction of serum anti-mitochondrial autoantibodies (AMA-M2) titers and improvement of liver biochemistry. Clinically, SAMe responders were younger at diagnosis, had longer duration of the disease and lower level of serum S-glutathionylated proteins at entry. SAMe treatment was associated with negative correlation between protein S-glutathionylation and TNFα. Furthermore, AMA-M2 titers correlated positively with INFγ and FGF-19 while negatively with TGFß. Additionally, cirrhotic PBC livers showed reduced levels of glutathionylated proteins, glutaredoxine-1 (Grx-1) and GSH synthase (GS). The effect of SAMe was also analyzed in vitro. In human cholangiocytes overexpressing miR-506, which induces PBC-like features, SAMe increased total protein S-glutathionylation and the level of γ-glutamylcysteine ligase (GCLC), whereas reduced Grx-1 level. Moreover, SAMe protected primary human cholangiocytes against mitochondrial oxidative stress induced by tBHQ (tert-Butylhydroquinone) via raising the level of Nrf2 and HO-1. Finally, SAMe reduced apoptosis (cleaved-caspase3) and PDC-E2 (antigen responsible of the AMA-M2) induced experimentally by glycochenodeoxycholic acid (GCDC). These data suggest that SAMe may inhibit autoimmune events in patients with PBC via its antioxidant and S-glutathionylation properties. These findings provide new insights into the molecular events promoting progression of PBC and suggest potential therapeutic application of SAMe in PBC.

Measurement of percentage dose at the surface for a 6 MV photon beam.

AIM: To evaluate if a radiochromic film (RF) Gafchromic EBT3 is suitable for surface dose measurements of radiotherapy treatments performed with a 6 MV linear accelerator. Two aspects of RF were analyzed, beam energy dependence and surface dose determination. BACKGROUND: The measurements done at the surface or near the radiation source are done without charged electronic equilibrium and also have contribution of electron contamination. The detectors used for these measurements should not alter the dose to the target. To counteract these dosimetric problems it is proposed to do the measurements with radiochromic films which are thin detectors and have tissue equivalent properties. MATERIALS AND METHODS: The measurements were done using a Novalis linear accelerator (LINAC) with nominal energy of 6 MV. To determine the surface dose, the total scatter factors (TSF) of three different field sizes were measured in a water phantom at 5 cm depth. Energy dependence of EBT3 was studied at three different depths, using a solid water phantom. The surface measurements were done with the RF for the same field sizes of the TSF measurements. The value of the percentage depth dose was calculated normalizing the doses measured in the RF with the LINAC output, at 5 cm depth, and the TSF. RESULTS: The radiochromic films showed almost energy independence, the differences between the curves are 1.7% and 1.8% for the 1.5 cm and 10 cm depth, respectively. The percentage depth doses values at the surface measured for the 10 cm × 10 cm, 5 cm × 5 cm and 1 cm × 1 cm were 26.1 ± 1.3%, 21.3 ± 2.4% and 20.2 ± 2.6%, respectively. CONCLUSIONS: The RF-EBT3 seems to be a detector suitable for measurements of the dose at the surface. This suggests that RF-EBT3 films might be good candidates as detectors for in vivo dosimetry.

Osteogenic potential of human dental pulp stem cells cultured onto poly-ε-caprolactone/poly (rotaxane) scaffolds.

BACKGROUND: Bioengineering aims to develop innovative scaffolds to improve cellular activities for tissue regeneration. OBJECTIVES: To evaluate the biological behavior of human dental pulp stem cells (hDPSCs) seeded onto an experimental polymeric-based scaffold comprising poly-ε-caprolactone/poly (rotaxane). MATERIAL AND METHODS: Adhesion, viability, and proliferation as well as alkaline phosphatase (ALP) activity, mineralized nodule formation (alizarin red assay), and expression of genes related to osteogenic differentiation, including ALP, type 1 collagen alpha 1 (COL1A1), Runt-related transcription factor (Runx-2), and osteocalcin (BGLAP/OCN), were evaluated in hDPSCs seeded onto polymeric scaffolds. RESULTS: hDPSCs expressed typical levels of mesenchymal stem cell surface markers. Cell growth increased upon cultivation on polymeric blend scaffold and the cells gained osteoblast-like appearance. Fourteen days after seeding hDPSCs on the scaffolds, irrespective to the culture medium used (clonogenic or mineralization medium), the cells presented ALP activity higher than that of control cells grown in clonogenic medium. The cells cultivated in mineralization medium on the scaffold showed significantly higher expression of all genes than the control cells, except for BGLAP gene expression. At 21 days, the group cultivated on the scaffold and mineralization medium showed maximum level of mineralization. SIGNIFICANCE: Poly-ε-caprolactone/poly (rotaxane) blend is noncytotoxic to hDPSCs and improved genomic and functional osteogenic differentiation. Thus, poly-ε-caprolactone/poly (rotaxane) blend may serve as a promising bioactive biomaterial for bone tissue bioengineering.

Pelvic floor muscle function and EMG in nulliparous women of different ages: a cross-sectional study.

BACKGROUND: Although aging is considered a risk factor for pelvic floor muscle dysfunction (PFMD), the effect of aging on the function of the pelvic floor muscles (PFM) remains unclear. OBJECTIVE: To compare PFM function and activity in nulliparous women in different age groups. METHODS: This was a cross-sectional study in which 70 women with ages between 18 and 69 years were divided into five age groups for evaluation. Initially, medical histories were taken, and then the PFM function was assessed using digital palpation (Modified Oxford Scale), manometry and surface electromyography (sEMG). The Kruskal-Wallis test was applied to check the differences between the groups. The Spearman correlation coefficient was used to verify the correlations between age and PFM function, manometry values and sEMG. A significance level of 5% was adopted. RESULTS: No significant differences were observed between the different age groups in PFM digital palpation, manometry values and sEMG. There was a low negative correlation between age root mean square and peak of sEMG signals. CONCLUSION: This study found no difference in PFM function and activity between nulliparous women in the five different age groups. Future long-term large prospective studies are required to confirm these findings.

Physiological and enzymatic alterations in sesame seeds submitted to different osmotic potentials.

With the imminence of global climate changes that affect the temperature and the rainfall uniformity, it is growing the concern about the adaptation of crops to the water deficit. Thus, the objective of this study was to evaluate alterations in physiological and enzymatic mechanisms during the germination process of sesame seeds under different water availability. To simulate the water restriction we used PEG6000, a high molecular weight molecule that does not penetrate the seed structure but allows different osmotic potentials. The treatments were -0.1, -0.2, and -0.3 MPa, and the control. Germination, first-count germination, germination velocity index, and length and dry mass of the hypocotyl and radicle were performed. The seeds were weighed before and after treatments every 3 h. After each weighing, 100 seeds were taken for analysis of the enzymes alcohol dehydrogenase (ADH), malate dehydrogenase, esterase, catalase (CAT), superoxide dismutase (SOD), isocitrate lyase (ICL), and glutamate dehydrogenase (GTDH). The statistical design was completely randomized with five replications. PEG6000 prolonged ADH activity during the beginning of germination, maintaining the anaerobic metabolism for longer. Subsequently, their activity was reduced, as well as ICL, favoring the deterioration of the seeds that take the time to germinate. Behavior was evidenced by the appearance of SOD, CAT, and GTDH isoforms after 24 h of imbibition when water restriction was imposed. Therefore, the PEG600 is efficient in simulating water deficit conditions in future scenarios of climate change, offering impotent information regarding the germination behavior of the plants under these conditions.

Changes in the membrane carbohydrates from sperm cryopreserved with dimethylsulfoxide or polyvinylpyrrolidone of red-tailed hawk (Buteo jamaicencis).

BACKGROUND: That cryopreservation can induce alterations in sperm. OBJECTIVE: The goal of this study was to evaluate sperm quality and distribution of N-acetylglucosamine, sialic acid and mannose residues in sperm cryopreserved of red-tailed hawk (Buteo jamaicensis). MATERIALS AND METHODS: We studied twenty samples of ejaculated semen for each cryoprotectant dimethylsulfoxide or polyvinylpyrrolidone. Carbohydrate identification was carried out with lectins Triticum vulgaris agglutinin to N-acetylglucosamine and sialic acid and Concanavalia ensiformis for mannose residues. Sperm viability was not altered but motility decreased significantly with both crioprotectants compared with fresh sperm. RESULTS: Neither the number of WGA positive sperm nor the distribution of N-acetylglucosamine and/or sialic acid residues were affected by the cryopreservation procedure. The sperm proportion with fluorescence associated with the presence of mannose residues was higher in thawed sperm. CONCLUSION: Values obtained with the cryopreservation technique proposed in this study by freezing drops in liquid nitrogen, were within normal parameters established for good quality fresh semen. We can say that it can be used for assisted reproduction of Buteo jamaicensis.

Tuning the electronic hybridization in the heavy fermion cage compound YbFe2Zn20 with Cd doping.

The tuning of the electronic properties of heavy fermion compounds by chemical substitution provides excellent opportunities for further understanding the physics of hybridized ions in crystal lattices. Here we present an investigation on the effects of Cd doping in flux-grown single crystals of the complex intermetallic cage compound YbFe2Zn20, which has been described as a heavy fermion with a Sommerfeld coefficient of 535 mJ mol(-1) · K(-2). The substitution of Cd for Zn disturbs the system by expanding the unit cell and, in this case, the size of the Zn cages that surround the Yb and Fe. With an increasing amount of Cd, the hybridization between the Yb 4f electrons and the conduction electrons is weakened, as shown by a decrease in the Sommerfeld coefficient, which should be accompanied by a valence shift of the Yb(3+) due to the negative chemical pressure effect. This scenario is also supported by the low temperature DC magnetic susceptibility, which is gradually suppressed and shows an increment of the Kondo temperature, based on a shift to higher temperatures of the characteristic broad susceptibility peak. Furthermore, the DC resistivity decreases with the isoelectronic substitution of Cd for Zn, contrary to expectations in an increasingly disordered system, and implying that the valence shift is not related to charge carrier doping. The combined results demonstrate the excellent complementarity between positive physical pressure and negative chemical pressure, and point to a rich playground for exploring the physics and chemistry of strongly correlated electron systems in the general family of Zn20 compounds, despite their structural complexity.

Splicing regulator SLU7 preserves survival of hepatocellular carcinoma cells and other solid tumors via oncogenic miR-17-92 cluster expression.

Resisting death is a central hallmark of cancer cells. Tumors rely on a number of genetic mechanisms to avoid apoptosis, and alterations in mRNA alternative splicing are increasingly recognized to have a role in tumorigenesis. In this study, we identify the splicing regulator SLU7 as an essential factor for the preservation of hepatocellular carcinoma (HCC) cells viability. Compared with hepatocytes, SLU7 expression is reduced in HCC cells; however, further SLU7 depletion triggered autophagy-related cellular apoptosis in association with the overproduction of reactive oxygen species. Remarkably, these responses were not observed in primary human hepatocytes or in the well-differentiated HepaRG cell line. Mechanistically, we demonstrate that SLU7 binds the C13orf25 primary transcript in which the polycistronic oncomir miR-17-92 cluster is encompassed, and is necessary for its processing and expression. SLU7 knockdown altered the splicing of the C13orf25 primary transcript, and markedly reduced the expression of its miR-17, miR-20 and miR-92a constituents. This led to the upregulation of CDKN1A (P21) and BCL2L11 (BIM) expression, two bona fide targets of the miR-17-92 cluster and recognized mediators of its pro-survival and tumorigenic activity. Interestingly, altered splicing of miR-17-92 and downregulation of miR-17 and miR-20 were not observed upon SLU7 knockdown in non-transformed hepatocytes, but was found in other (HeLa, H358) but not in all (Caco2) non-hepatic tumor cells. The functional relevance of miR-17-92 dysregulation upon SLU7 knockdown was established when oxidative stress, autophagy and apoptosis were reversed by co-transfection of HCC cells with a miR-17 mimic. Together, these findings indicate that SLU7 is co-opted by HCC cells and other tumor cell types to maintain survival, and identify this splicing regulator as a new determinant for the expression of the oncogenic miR-17-92 cluster. This novel mechanism may be exploited for the development of antitumoral strategies in cancers displaying such SLU7-miR-17-92 crosstalk.

In vivo biocompatibility of nanostructured Chitosan/Peo membranes / Biocompatibilidade in vivo de membranas nanoestruturadas de Quitosana/Peo

Electrospinning is a technique that allows the preparation of nanofibers from various materials. Chitosan is a natural and abundant easily obtained polymer, which, in addition to those features, proved to be biocompatible. This work used nanostructured chitosan and polyoxyethylene membranes as subcutaneous implants in Wistar rats to evaluate the biocompatibility of the material. Samples of the material and tissues adjacent to the implant were collected 7, 15, 30, 45 and 60 days post-implantation. Macroscopic integration of the material to the tissues was observed in the samples and slides for histopathological examination that were prepared. It was noticed that the material does not stimulate the formation of adherences to the surrounding tissues and that there is initial predominance of neutrophilia and lymphocytosis, with a declining trend according to the increase of time, featuring a non-persistent acute inflammatory process. However, the material showed fast degradation, impairing the macroscopic observation after fifteen days of implantation. It was concluded that the material is biocompatible and that new studies should be conducted, modifying the time of degradation by changes in obtaining methods and verifying the biocompatibility in specific tissues for biomedical applications.

A eletrofiação é uma técnica que permite a preparação de nanofibras mediante o uso de diversos materiais. A quitosana é um polímero natural, abundante e de fácil obtenção, que, além dessas características, demonstrou ser biocompatível. Este trabalho utilizou membranas nanoestruturadas de quitosana e polióxido de etileno como implantes subcutâneos em ratos Wistar para avaliar a biocompatibilidade do biomaterial. As amostras do material e de tecidos adjacentes ao implante foram retiradas sete, 15, 30, 45 e 60 dias pós-implantação para a observação da integração macroscópica do material aos tecidos e para a preparação de lâminas para exame histopatológico. Verificou-se que o material não estimula a formação de aderências com os tecidos circunvizinhos e que há predominância inicial de neutrofilia e linfocitose, que tendem a decrescer em razão do aumento do tempo, caracterizando um processo inflamatório agudo não persistente. No entanto, o material apresentou degradação rápida, não sendo possível observá-lo macroscopicamente após 15 dias de implantação. Concluiu-se que o material é biocompatível, o que indica que novos estudos devem ser conduzidos, com modificação do tempo de degradação por alterações nos métodos de obtenção e verificação da biocompatibilidade em tecidos específicos para aplicações biomédicas.

Gd3+ spin-lattice relaxation via multi-band conduction electrons in Y(1-x)Gd(x)In3: an electron spin resonance study.

Interest in the electronic structure of the intermetallic compound YIn3 has been renewed with the recent discovery of superconductivity at T ∼ 1 K, which may be filamentary in nature. In this work we perform electron spin resonance (ESR) experiments on Gd(3+) doped YIn3 (Y1-xGdxIn3; 0.001 ⪅ x ⩽̸ 0.08), showing that the spin-lattice relaxation of the Gd(3+) ions, due to the exchange interaction between the Gd(3+) localized magnetic moment and the conduction electrons (ce), is processed via the presence of s-, p- and d-type ce at the YIn3 Fermi level. These findings are revealed by the Gd(3+) concentration dependence of the Korringa-like relaxation rate d(ΔH)/dT and g-shift (Δg = g - 1.993), that display bottleneck relaxation behavior for the s-electrons and unbottleneck behavior for the p- and d-electrons. The Korringa-like relaxation rates vary from 22(2) Oe/K for x ⪅ 0.001 to 8(2) Oe/K for x = 0.08 and the g-shift values change, respectively, from a positive Δg = +0.047(10) to a negative Δg = -0.008(4). Analysis in terms of a three-band ce model allows the extraction of the corresponding exchange interaction parameters Jfs, Jfp and Jfd.

Electrospun membranes of poly(lactic acid) (PLA) used as scaffold in drug delivery of extract of Sedum dendroideum.

Biomaterials nanofibrous electrospun with biodegradable polymers have the advantage of the similarity to natural extracellular matrices, showing promising as scaffolds for application in tissue engineering. Sedum dendroideum is a phytotherapic drug that stands out for its healing properties and anti-inflammatory. This study presents the efficacy of PLA electrospun membranes used as support S. dendroideum extract releasing on excisional skin lesions of Wistar rats. The PLA porous membranes, which are nonwoven fibrous mats, were obtained by electrospinning using a conventional apparatus with a flat collector. The animals were randomly divided into nine groups: control (C), animals treated with electrospun membranes of PLA (M), animals treated with extract of S. dendroideum dissolved in saline (F), animals treated with membranes of PLA with 10% S. dendroideum (MF10), animals treated with membranes of PLA with 25% S. dendroideum (MF25). Tissue samples were taken after 2, 6 and 10 days after surgery and were subjected to structural analysis and morphology. The experimental observations showed the application of the phytotherapic incorporated in the membrane promoted a significant response regarding the number of inflammatory cells, percentage of mature collagen fibers and epithelium birrefringent in thickness excisional skin lesions in Wistar rats. It was also demonstrated that the application of the PLA membranes without the extract promoted similar responses tissues.

Patterns of GABA and GABA Transporter-1 immunoreactivities in the developing and adult mouse brain amygdala.

We used immunohistochemistry to analyze the spatiotemporal patterns of GABA and GABA Transporter-1 (GAT1) immunoreactivities in the developing and adult mouse amygdala. GABA-immunoreactive(ir) neurons were first observed in the mouse amygdala at the embryonic day 15.5 (E15.5), and they became abundant throughout the amygdala perinatally. GAT1 immunoreactivity started to be observed in the mouse amygdala at E18.5. As development proceeds, GAT1 immunoreactivity was more intense, reaching a high density in some amygdalar nuclei at the second postnatal week. In general, GAT1-ir terminals were denser in pallial amygdalar derivatives, such as the basolateral complex than in subpallial derivatives, such as the central nucleus. Distinctive patterns of GABA and GAT1 immunoreactivities distinguish the basolateral complex and the central nucleus during postnatal development and in the adult. GAT1 immunoreactivity appears earlier in the basolateral complex than in the central nucleus. Moreover, the distribution of GAT1-ir fibers and terminals in the basolateral complex parallels the distribution of GABA-ir neurons whereas in the central nucleus the distribution of GAT1-ir terminals was not related with the amount of GABA-ir neurons, especially during development. Another major difference between the basolateral complex and the central nucleus was related to axonal specializations termed here as GAT1 cartridges. Our results indicate that GAT1-ir cartridges were numerous in the basolateral complex but they were completely absent in the central amygdala. Finally, we discuss the patterns of GABA and GAT1 immunoreactivities in relation with the different origin or cellular composition of the basolateral complex and central nucleus.

Optical conductivity spectral anomalies in the off-center rattling system ß-Ba8Ga16Sn30.

We present optical conductivity studies of the type-I clathrate Ba8Ga16Sn30, using a terahertz time-domain spectrometer (0.3-3.0 THz). The lowest-lying spectral peak at 0.72 THz due to the Ba(2) ion's off-center vibration in the oversized cage shows a drastic and anomalous temperature dependence. Below about 100 K, the single broad peak splits into two subpeaks, and with further lowering of the temperature, the spectral shape of this so-called rattling phonon shows non-Boltzmann broadening to the point that the linewidth becomes comparable to the peak frequency. Whereas the initial splitting can be understood by assuming a multiwell anharmonic potential, the strong linewidth broadening toward low temperature cannot, since the Boltzmann factor generally sharpens the low-temperature spectra. The observed behavior suggests strong interaction between the local anharmonic phonons and other excitations.

Asociación entre los niveles de ácido fólico con biomarcadores de riesgo cardiovascular en atletas de alto rendimiento / Association beetwen folic acid levels with cardiovascular risk biomarkers in high performance athletes

INTRODUCCIÓN: La deficiencia de ácido fólico y de vitamina B12 disminuye el rendimiento físico. Los atletas de alto rendimiento podrían tener una ingesta insuficiente de vitaminas del grupo B si se alimentan con dietas monótonas o de bajo consumo energético. Se ha demostrado que niveles bajos de homocisteína (Hcy) en sangre están normalmente asociados con la vitamina B12 y fólico, y con un menor riesgo cardiovascular, mostrándose el entrenamiento relacionado intenso con la hiperhomocisteinemia (HHcy) (> 12 mg / mL). OBJETIVO: Valorar el estado nutricional en B12 y fólico, y la situación cardiovascular en una muestra de deportistas de élite y estudiar el efecto de una suplementación en la población, donde el riesgo cardiovascular está presente. METODOLOGÍA: El estudio se ha llevado a cabo con 14 jugadores profesionales de balonmano > 18años, llevando un seguimiento durante dos meses de entrenamiento intermitente intenso y suplementado con 200 mg/d de ácido fólico y 2,5μg/d de vitamina B12. Tanto al inicio como a los dos meses y a los cuatro meses se valoró la ingesta de ácido fólico y vitamina B12 (mediante recordatorio de 72h y el software Nutriber®), y se determinaron los niveles de B12, fólico y Hcy mediante enzimoinmunoensayo(AU)

CONCLUSIÓN /DISCUSIÓN: Tanto la ingesta de vitamina B12 como su nivel plasmático fueron adecuados. La ingesta de fólico estaba de acuerdo con las RDIs en humanos sanos, pero por debajo de la ingesta diaria recomendada para deportistas (300μg/d) en el 14,3% de los sujetos al comienzo del estudio; ninguno se mostró deficiente después de la suplementación. Otros autores recomiendan un consumo más alto de ácido fólico para entrenamiento intermitente intenso (400- 500 mg/d), y teniendo en cuenta estas recomendaciones, nuestros resultados muestran un 50-85,5%, respectivamente, de deportistas con una ingesta deficiente de ácido fólico. Aun así, los niveles de ácido fólico en plasma se encuentran dentro de los niveles de referencia (ref. 4,2-19,9 ng/ml), aunque se encuentra una asociación negativa significativa entre los niveles plasmáticos de fólico y Hcy (p <0,05). ¿Cuál es la ingesta real recomendada de fólico y vitamina B12 en deportistas con entrenamiento intermitente intenso? Los atletas de élite deben ser controlados mediante un exhaustivo asesoramiento y seguimiento nutricional y clínico. Es necesario el ajuste de las recomendaciones de vitamina B12 y ácido fólico para optimizar el rendimiento deportivo y prevenir problemas cardiovasculares comunes asociados(AU)

INTRODUCTION: The deficiency of folic acid and vitamin B12 reduced physical performance. High performance athletes may have an insufficient intake of vitamins of group B if they are fedmonotonous diets with low energy consumption. It has been shown that low levels of homocysteine (Hcy) levels are usually associated with vitamin B12 and folic acid, and reduced cardiovascular risk, showing the intense training associated with hyperhomocysteinemia (HHcy) (> 12 mg / mL). OBJECTIVE: To assess the nutritional status of B12 and folate, and cardiovascular status in a sample of elite athletes and to study the effect of supplementation in the population where cardiovascular risk is present. METHODS: The study was conducted with 14 professional handball players > 18 years, followed for two months of intense intermittent training and supplemented with 200 mg / d of folic acid and 2.5μg /d of vitamin B12. At baseline and at two months and four months we evaluated the intake of folic acid and vitamin B12 (72h-recall and Nutriber ® software), and determined the levels of B12, folate and Hcy by enzyme immunoassay(AU)

CONCLUSION / DISCUSSION: Both the intake of vitamin B12 and its plasma level was adequate. Folate intake was according to the RDIs in healthy humans, but below the recommended daily intake for athletes (300μg / d) in 14.3% of subjects at baseline, none were poor after the supplementation. Other authors recommend a higher intake of folic acid to intense intermittent training (400 - 500 mg /d), and taking into account these recommendations, our results showed a 50-85.5%, respectively, Athletes with an inadequate intake of folic acid. Still, folic acid levels in plasma are within the reference levels (ref. 4.2 to 19.9 ng / ml), although there is a significant negative association between plasma levels of folate and Hcy (p <0.05). What is the recommended intake of folic real and vitamin B12 in intense intermittent training athletes? Elite athletes should be monitored by a comprehensive nutritional counseling and clinical monitoring. Adjustment is needed on the recommendations of vitamin B12 and folic acid to optimize athletic performance and prevent cardiovascular problems commonly associated(AU)

El farmacéutico en la administración de la comunidad autónoma de Andalucía / The pharmacist in the administration of the autonomous community of Andalusia

Objetivo: En primer lugar determinar las condiciones de acceso al Cuerpo de Farmacéuticos adscrito a la Administración Sanitaria de la Junta de Andalucía y en segundo lugar, conocer las distintas modalidades, cómo se han organizado los distintos cuerpos y cómo se estructuran en sus diferentes subgrupos. Además se analiza y define su régimen laboral. En tercer lugar, determinar la estructura orgánica y funciones de los distintos Cuerpos a los que tiene acceso el farmacéutico en la Administración de la Comunidad Autónoma Andaluza. Metodología: Revisión de la normativa, vigente y derogada, que regula los cuerpos y el sistema de acceso para Farmacéutico en la Comunidad Autónoma Andaluza. Conclusión: La figura del farmacéutico como agente sanitario en la legislación autonómica andaluza, se encuentra regulada en distintas normas que exigen una interpretación de acuerdo a los criterios de la Ley 6/185 de Ordenación de la Función Pública de la Junta de Andalucía. Las distintas modalidades de ejercicio profesional, ya sea como agente sanitario de la autoridad autonómica o como profesional especializado se definen en distintos estatutos orgánicos necesarios para definir claramente sus funciones y responsabilidades(AU)

Objetive: First to determine the conditions of access to the Pharmacists' Body assigned to the Sanitary Administration of the Meeting of Andalusia and secondly, to know the different modalities, how the different bodies have been organized and how they are structured in his different subgroups. In addition his labor regime is analyzed and defines. Thirdly, to determine the organic structure and functions of the different Bodies to which the pharmacist has access in the Administration of the Autonomous Andalusian Community. Methodology: Review of the regulation, in force and repealed, that regulates the bodies and the system of access for Pharmacist in the Autonomous Andalusian Community. Conclusion / discussion: The figure of the pharmacist like sanitary agent in the autonomous Andalusian legislation, is regulated in different procedure that demand an interpretation of agreement to the criteria of the Law 6/185 of Arrangement of the Public Function of the Meeting of Andalusia. The different modalities of professional exercise, already be like a sanitary agent of the autonomous authority or as specialized professional they are defined in different organic necessary by laws to define clearly his functions and responsibilities(AU)

Effect of clay content and speed screw rotation on the crystallization and thermal behaviors of recycled PET/clay nanocomposites.

Nanocomposites of recycled poly(ethylene terephthalate) (rPET) containing 2.5 wt% and 5.0 wt% of montmorillonite modified with organophilic quaternary ammonium salt (DELLITE 67G) were prepared by melt compounding using a co-rotating twin-screw type extruder with two organoclay contents were used: 2.5 wt% and 5.0 wt% and were prepared using two different rotation speeds: 150 and 250 rpm. Thermal characterization (analysis) of the nanocomposites was performed using differential scanning calorimetry (DSC) analysis. The results from DSC measurements showed that the addition of organoclay affects recycled PET's crystallization for two screw rotation speeds studies. The nucleating effect of organoclay was investigated. Morphological analysis using Transmission Electron Microscopy (TEM) revealed the presence of fully exfoliated clay platelets in samples prepared at 150 rpm.

Epidermal growth factor receptor ligands in murine models for erythropoietic protoporphyria: potential novel players in the progression of liver injury.

Activation of the epidermal growth factor receptor (EGFR) plays an important role in liver regeneration and resistance to acute injury. However its chronic activation participates in the progression of liver disease, including fibrogenesis and malignant transformation. Hepatobiliary disease represents a constant feature in the clinically relevant Fechm1pas/Fechm1pas genetic model of erythropoietic protoporphyria (EPP). Similarly, chronic administration of griseofulvin to mice induces pathological changes similar to those found in patients with EPP-associated liver injury. We investigated the hepatic expression of the EGFR and its seven most relevant ligands in Fechm1pas/Fechm1pas mice bred in three different backgrounds, and in griseofulvin-induced protoporphyria. We observed that the expression of amphiregulin, betacellulin and epiregulin was significantly increased in young EPP mice when compared to aged-matched controls in all genetic backgrounds. The expression of these ligands was also tested in older (11 months) BALB/cJ EPP mice, and it was found to remain induced, while that of the EGFR was downregulated. Griseofulvin feeding also increased the expression of amphiregulin, betacellulin and epiregulin. Interestingly, protoporphyrin accumulation in cultured hepatic AML-12 cells readily elicited the expression of these three EGFR ligands. Our findings suggest that protoporphyrin could directly induce the hepatic expression of EGFR ligands, and that their chronic upregulation might participate in the pathogenesis of EPP-associated liver disease.