Knowledge on the precise effects of surplus glucose supply in dairy cows is limited by the lack of information on how intermediary metabolism adapts at different levels of glucose availability. Therefore, a gradual increase of glucose supply via intravenous glucose infusion was used in the present study to test the dose effect of surplus provision of glucose on the metabolic status and milk production of dairy cows. Furthermore, the effects of increasing levels of surplus glucose on mRNA expressions and activities of rate-limiting enzymes involved in hepatic gluconeogenesis were investigated. Based on a previous finding that a positive energy balance may decrease hepatic carnitine palmitoyltransferase (CPT) enzyme activity, it was also of interest whether skeletal muscle CPT activity is downregulated in a similar manner during positive energy balance. Twelve midlactating Holstein-Friesian dairy cows were continuously infused over a 28-d experimental period with either saline (SI group, six cows) or 40% glucose solutions (GI group, six cows). The infusion dose was calculated as a percentage of the daily energy (NEL) requirements by the animal, starting at 0% on d 0 and increasing gradually by 1.25%/d until a maximum dose of 30% was reached by d 24. Dose was then maintained at 30% NEL requirement for 5 d. No infusions were made between d 29-32. Liver and skeletal muscle biopsies were taken on d 0, 8, 16, 24, and 32. Body weight (BW) and back fat thickness (BFT) were recorded on biopsies days. Blood samples were taken every 2 d. In addition, blood samples over 24 h (6-h intervals) were taken the days before each biopsy. Milk and urine samples were taken on biopsies days. BW and BFT increased linearly with increasing glucose dose for GI cows. No differences were observed in the dry matter intake, milk energy output, and energy corrected milk yield between groups. However, milk protein percentage and yield increased linearly in the GI group. Only occasional increases in blood glucose and insulin concentrations were observed in blood samples taken at 1000 h every 2 d. However, during infusion dose of 30% NEL requirements on d 24, GI cows developed postprandial hyperglycemia associated with hyperinsulinemia, coinciding with glucosuria. The revised quantitative insulin sensitivity check index (RQUIKI) indicated linear development of insulin resistance for the GI treatment. GI decreased serum concentrations of beta-hydroxybutyrate (BHBA) and blood urea nitrogen and tended to decrease the serum concentration of non-esterified fatty acids (NEFA). Liver glycogen content increased, while glycogen content in skeletal muscle only tended to increase by GI. No significant changes were observed in the activities and relative mRNA expression levels of hepatic phosphoenolpyruvate carboxykinase and glucose 6-phospatase. The activity of fructose 1,6-bisphosphatase (FBPase) and relative mRNA expression levels of pyruvate carboxylase (PC) were decreased in the GI group but only during the high dose of glucose infusion. Hepatic CPT activity decreased with GI and remained decreased on d 32. The hepatic expression levels of CPT-1A and CPT-2 mRNA were not significantly altered but tended to reflect the changes in enzyme activity. No effect of glucose infusion was observed on skeletal muscle CPT activity. The aforementioned adaptations were reversed four days after the end of glucose infusions except for those of BW, BFT, and lipid metabolism (i.e. serum BHBA and NEFA concentrations, hepatic CPT activity). It is concluded that mid-lactation dairy cows on an energy-balanced diet direct intravenously infused glucose predominantly to body fat reserves but not to increased lactation performance. Cows rapidly adapted to increasing glucose supply but experienced dose-dependent development of insulin resistance corresponding with postprandial hyperglycemia/hyperinsulinemia and glucosuria at dosages equivalent to 30% NEL requirements. The catalytic capacity of key hepatic gluconeogenesis enzymes in mid-lactating dairy cows is not significantly affected by nutritionally relevant increases of glucose supply. Only very high dosages selectively suppress PC transcription and FBPase activity. Finally, it can be concluded that suppression of CPT activity by positive energy balance appears to be specific for the liver in midlactating dairy cows.

The purpose of this research study was to improve the nursing care of intravenous catheters by providing evidence on the effects of prolonged duration of intravenous administration set use. Intravenous therapy is a vital part of modern health care. However, its invasive nature can result in infection, with high associated morbidity and mortality. The highest infection rates are displayed in intensive care patients with central venous catheters. The duration of intravenous administration set use may have an impact on infection rates,however the current practice usage and the optimum duration of use is unknown. Previous studies of central venous catheters have reported equal infection rates with 1 to 4 days of administration set use; however few patients have been evaluated with administration sets used beyond this time. Previous research has been limited by the inadequacy of available definitions for Catheter-Related Infection. A prospective, randomised, controlled clinical trial was performed to assess the infection risk of using administration sets for prolonged periods. In the developmental phase prior to the clinical trial; definitions of Catheter-Related Bloodstream Infection (CRBSI) were developed; a nursing practice survey was undertaken to establish the current duration of administration set use; and laboratory experiments were executed to assess the impact of prolonged use on administration set physical integrity and performance. Central venous catheters were randomised to have their administration sets used for 4 days (n = 203) or 7 days (n = 201). Percutaneous central venous catheters were enrolled into the study from two adult intensive care units at a metropolitan, tertiary-referral, teaching hospital. Catheters were multiple-lumen, chlorhexidine-gluconate and silver-sulphadiazine coated lines, both inserted and removed in the intensive care unit. Catheters were cultured for microbial colonisation on removal using the Maki roll-plate technique. Patients were assessed for CRBSI using the developed definitions consisting of categories: definite, probable (type I and II), possible and absent. Prior to the clinical trial, a practice survey questionnaire was administered, and laboratory experimentation was performed. Normality of distribution for continuous variables was assessed using the Kolmogorov- Smirnov statistic. The distribution between groups of variables considered risk factors for Catheter-Related Infection were tested to assess for bias using Chi-square and T-test. Logistic regression modelling was performed to analyse the influence of potentially confounding variables. The incidence of catheter colonisation and CRBSI was tested between groups using Kaplan-Meier survival curve with Log-rank test. Paired T-tests were performed to test for difference in programmed and delivered volumes of administration sets. A general linear model (ANOVA)± a Scheffe post hoc test to isolate difference was fitted to the standardised values of delivered volumes to determine the effects of day of measurement and volume delivery rate on the accuracy of volume delivery. There were 10 colonised tips in the intervention group and 19 in the control group. This difference was not statistically significant (Kaplan Meier survival analysis, Log Rank = 0.87, df = 1, p = 0.35). There were 3 cases of CRBSI per group and the difference in survival from CRBSI was not statistically significant (Kaplan Meier with Log Rank test, p = 0.86). The pre-clinical trial phases of the research programme established that current clinical practice was 3 to 7-day use of administration sets; that administration sets were physically intact and delivered clinically accurate volumes after 7 days of use; and developed useful definitions of CRBSI. Prolonged intravenous administration set use of 7 days was found to have no significant impact on patient infection indicators or physical performance of the sets. This finding is congruent with previous research and trends in current clinical practice. In conclusion, the research findings support the use of intravenous administration sets for 7 days.

Diss. (sammanfattning) Stockholm : Karol. inst., 2006. / Härtill 4 uppsatser.

There are currently two types of intra-arterial drug-delivery system (DDS) in clinical use in the palliative treatment of primary liver cancer. The chemotherapeutic drug doxorubicin (DOX) can be formulated into a drug-in-lipiodol emulsion (LIPDOX) or a microparticulate drug-eluting bead system (DEBDOX). To facilitate development of future DDSs, we need to understand the release and local distribution of drug from these DDSs into the complex, in vivo, pathological environment. The overall aim of this project was to assess and improve understanding of the in vivo release of DOX from LIPDOX and DEBDOX and its local disposition in the liver. These processes were investigated in detail in a multisampling-site, healthy pig model and in human patients with liver cancer. The mechanisms involved in DOX disposition were studied by examining potential interactions between DOX and lipiodol and/or cyclosporine A (CsA) in pigs.   In this project, the main elimination pathway for DOX and its primary metabolite doxorubicinol (DOXol) was via bile; their extensive canalicular carrier-mediated transport (e.g. ATP-binding cassette transporters ABCB1, ABCC1, ABCC2 and ABCG2) was inhibited by CsA. CsA had no effect on the carbonyl and aldo-keto reductases responsible for the metabolism of DOX into DOXol. LIPDOX released DOX more rapidly and to a greater extent into the circulation than DEBDOX, which had only released 15% of the dose in patients after 24 hrs. The systemic exposure to DOX was lower for DEBDOX than for LIPDOX. Greater fractions of DOXol were formed in blood and bile with LIPDOX than with DEBDOX. This may have been because DOX was more widely distributed into regions with increased metabolic capacity or because of increased intracellular uptake when DOX was delivered in LIPDOX. The excipient lipiodol in the LIPDOX formulation did not interact with transporters, enzymes or membranes that would explain the increased cellular uptake of DOX. In conclusion, the release of DOX from DEBDOX is more controlled in vivo than that from LIPDOX, indicating that DEBDOX is a more robust pharmaceutical product. The formulations for future optimized DDSs should therefore be more similar to DEBDOX than to LIPDOX.

Submitted by Claudia Rocha (claudia.rocha@udesc.br) on 2018-02-16T11:12:33Z No. of bitstreams: 1 PGCA16MA187.pdf: 1684727 bytes, checksum: 5568c061fa23561e4110c551eb567400 (MD5) / Made available in DSpace on 2018-02-16T11:12:33Z (GMT). No. of bitstreams: 1 PGCA16MA187.pdf: 1684727 bytes, checksum: 5568c061fa23561e4110c551eb567400 (MD5) Previous issue date: 2016-02-19 / Capes / Chapter I: The aim of this study was to evaluate the analgesic effect of intraoperative and postoperative continuous infusion of ketamine in addition to their cardiovascular, blood gas and respiratory changes. 24 dogs were used, adult, with average weight and age of 19,2±10,1 kg and 8,5± 1,7 years, respectively. All animals were premedicated with 0,5 mg/kg of morphine and 0,02 mg/kg acepromazine by the IM route. Anesthesia was induced with propofol 4 mg/kg and maintenance of anesthesia with isoflurane 1 MAC, diluted in 100% oxygen, undergoing mechanical ventilation. Regarding analgesia during surgery the animals received after the induction, an initial bolus of fentanyl in a dose of 2,5 μg/kg by the IM route, followed by continuous infusion at the rate of 10 μg/Kg/h and then were divided into three groups: CP; received bonuses of ketamine at a dose of 2,5 mg/kg in the immediate postoperative and IC ketamine 10 μg/ kg/min in six hours postoperatively. The CTP; received bolus ketamine at a dose of 2,5 mg/kg after induction of anesthesia and IC ketamine 10 μg/ kg/min intraoperatively and ketamine 10 μg/ kg/min in six hours postoperative. And the SP; They received saline bolus after induction and in the immediate postoperative period, followed by saline IC in six hours postoperatively. Redemptions for analgesia, bradycardia and hypotension were performed with fentanyl, atropine and dobutamine, respectively. The surgical procedure was complete unilateral mastectomy, performed always by the same surgeon. Upon completion of the surgical procedure, all animals received meloxicam and morphine at a dose of 0,2 mg/kg and 0,5 mg/kg for IV and IM, respectively. The parameters were evaluated 10 minutes after induction of anesthesia (T0); 5 minutes after bolus injection of ketamine and / or fentanyl (T1); 15 minutes after bolus injection of ketamine and/or fentanyl (T2); After the skin incision (T3) and 30, 45, 60, 75 and 90 minutes after the start of the continuous infusion treatments (T4; T5; T6, T7 and T8). Yet they were recorded the total time of surgery and time to extubation in minutes. For algic animals were evaluated by an evaluator, prior to surgery (M0), 1 (M1), 2 (M2), 4 (M4), 6 (M6), 8 (M8), 12 (M12) and 24 ( M24) hours postoperatively. Morphine dose 0,5 mg/kg by the IM route, was standardized for painkillers redemptions when a score higher or equal to six points was observed, with the help of Pain Scale Composed of Glasgow. The incidence of sedation was evaluated in the same moments of pain assessment through the Adapted Sedation Scale Saponaro, 2014. There was a decrease of FC in T8 in the CP and SP in relation to the CTP. The PAS increased in CTP T3 to T8 and SP from T3 to T7 when compared to the time T0. The CTP decreased in PaCO2 between T2 and T8, relative to T0. The Cl- was higher in the T2 CTP when compared to the SP and the SP greater compared to CTP. Regarding the used sedation scale, there was no statistical difference for the sub item appearance. As for the sub item behavioral interaction significant differences were observed in M0 to M1, M2 and M4 in CP in M1 for CTP and M1 and M2 for the SP. The strength of the analysis, statistical differences were observed from M1 to M24 to the CP, M1 and M2 for the CTP and between M1 and M24 for the SP in relation to the M0 moment. And the answer to palm the M8 time, the SP and CP differed from the CTP showed values similar to those seen in CP and SP. In relation to the total sum of points for GCMPS significant differences were observed in relation to M0 between M1 and M24 to the CP, from M1 to M12 in CTP and M1 to M6 for the SP, and the M24 when the CP showed values different to those observed in SP. The survival curve analysis showed no statistical difference for the perioperative rescue with dobutamine and postoperative morphine between groups, with only difference to the rescue with intraoperative fentanyl, where the CTP group did not need any rescue. Chapter II: The experimental design was carefully similar to Chapter I, but after surgery there was no groups of division or distribution of treatments and the animals were placed in a single group. Thus aimed to evaluate the application of postoperative analgesic redemptions through the correlation of the Visual Analogue Scale (VAS) Glasgow Composite Measure Pain Scale (GCMPS), Acute Pain Scale at the University of Colorado (EDAUC) and University of Melbourne Pain Scale (UMPS) in bitches submitted to unilateral mastectomy full. The algic of the animals was performed with the aid of VAS, EDAUC, UMPS and GCMPS by two assessors, experienced and not experienced before surgery (M0), 1 (M1), 2 (M2), 4 (M4) 6 (M6), 8 (M8), 12 (M12) and 24 (M24) hours postoperatively. The analgesic rescue were performed with morphine 0,5 mg/kg by the IM route, when at least two of scale present a score greater than or equal to 50, 2, 9 and 6 respectively, and when the score was observed only by experienced assessor. There was an increase in the total sum of points for M1 to M12 pain score for the experienced assessor (E) and for non-experienced (NE) for the VAS. In the analysis of EDAUC higher values compared to M0 were observed between M2 to M8 for E and M1 to M12 to the NE. In GCMPS, higher pain scores were observed between M1 to M24 for E and M1 to M12 to the NE. In the analysis of UMPS the increase in the total sum of points for pain scores were evident from M1 to M24 for E and NE. The best overall correlation was 0,775 between GCMPS and EDAUC and among evaluators was 0,925 for GCMPS. Chapter I: We conclude that continuous infusion of ketamine promotes adequate cardiorespiratory stability and hemogasometric provides excellent additional analgesia in the perioperative period, but the administration of meloxicam and morphine in the immediate postoperative masked postoperative analgesic effects of ketamine, did there were differences in the application of analgesic rescues with morphine, will be shown between groups. Chapter II: We conclude that the pain scale Consisting of Glasgow, was more sensitive to detect the need for postoperative analgesic rescue bitches submitted to unilateral mastectomy full, requiring no prior experience by the evaluators to painful assessment / Capitulo I: O objetivo deste estudo foi avaliar o efeito analgésico transoperatório e pós-operatório da infusão contínua de cetamina, além de suas alterações cardiovasculares, hemogasométricas e respiratórias. Foram utilizadas 24 cadelas, adultas, com peso e idade médio de 19,2±10,1 Kg e 8,5±1,7 anos, respectivamente. Todos os animais foram pré-medicados com 0,5 mg/Kg de morfina e 0,02 mg/Kg de acepromazina pela via IM. A indução foi realizada com propofol 4 mg/Kg e a manutenção da anestesia com isoflurano 1 CAM, diluído em 100% de oxigênio, submetidos a ventilação mecânica. Quanto à analgesia transoperatória os animais receberam após a indução, um bolus inicial de fentanil na dose de 2,5 μg/Kg, pela via IV seguido da infusão contínua na taxa de 10μg/Kg/h e em seguida foram alocados em três grupos: o CP; receberam bolus de cetamina na dose de 2,5 mg/Kg no pós operatório imediato e IC de cetamina 10μg/Kg/min em seis horas de pós-operatório. O CTP; receberam bolus de cetamina na dose de 2,5 mg/Kg após a indução da anestesia e IC de cetamina 10μg/Kg/min no transoperatório e cetamina 10μg/Kg/min em seis horas de pós-operatório. E o SP; receberam bolus de salina após a indução e no pós-operatório imediato, seguido da IC de salina em seis horas de pós-operatório. Os resgates para analgesia, bradicardia e hipotensão foram realizados com fentanil, atropina e dobutamina, respectivamente. O procedimento cirúrgico foi de mastectomia total unilateral, realizado sempre pelo mesmo cirurgião. Ao término do procedimento cirúrgico, todos os animais receberam meloxicam e morfina na dose de 0,2 mg/Kg e 0,5 mg/Kg pela via IV e IM, respectivamente. Os parâmetros foram avaliados 10 minutos após a indução anestésica (T0); 5 minutos após o bolus de cetamina e/ou fentanil (T1); 15 minutos após o bolus de cetamina e/ou fentanil (T2); após a incisão de pele (T3) e 30, 45, 60, 75 e 90 minutos após o início da infusão contínua dos tratamentos (T4; T5; T6; T7 e T8). Ainda foram contabilizados o tempo total do procedimento cirúrgico e o tempo para extubação em minutos. Para avalição álgica os animais foram avaliados por um avaliador, antes da cirurgia (M0), 1 (M1), 2 (M2), 4 (M4), 6 (M6), 8 (M8), 12 (M12) e 24 (M24) horas de pós-operatório. A morfina na dose 0,5 mg/Kg, pela via IM, foi padronizada para os resgates analgésicos quando uma pontuação maior ou igual a seis pontos fosse observada, com o auxílio da Escala de dor Composta de Glasgow. A ocorrência de sedação também foi avaliada, nos mesmos momentos da avaliação da dor, por meio da Escala de Sedação Adaptada de Saponaro, 2014. Houve diminuição da FC em T8 no CP e no SP em relação ao CTP. A PAS aumentou no CTP de T3 a T8 e no SP de T3 a T7 quando comparados ao momento T0. A PaCO2 diminuiu no CTP entre T2 e T8, em relação ao T0. O Cl- foi maior no T2 em CTP quando comparado ao SP e maior no SP em relação ao CTP. Em relação a escala de sedação utilizada, não houve diferença estatística para o sub item aparência. Já para o sub item interação comportamental diferenças significativas em relação a M0 foram observadas em M1, M2 e M4 no CP, em M1 para o CTP e em M1 e M2 para o SP. Na análise da resistência, diferenças estatísticas foram observadas de M1 a M24 para o CP, M1 e M2 para o CTP e entre M1 e M24 para o SP em relação ao momento M0. E para a resposta à palma no momento M8, o CP diferiu do SP e o CTP apresentou valores semelhantes aos observados em CP e SP. Em relação ao somatório total de pontos pela GCMPS foram observadas diferenças significativas em relação ao momento M0 entre M1 e M24 para o CP, de M1 a M12 no CTP e de M1 a M6 para o SP, sendo que no momento M24 o CP apresentou valores diferentes aos observados em SP. Na análise da curva de sobrevivência não houve diferença estatística para o resgate transoperatório com dobutamina e pós-operatório com morfina entre os grupos, havendo apenas diferença para o resgate transoperatório com fentanil, onde o grupo CTP não necessitou de nenhum resgate. Capítulo II: O delineamento experimental foi criteriosamente semelhante ao do capítulo I, porém no pós operatório não houve divisão de grupos ou distribuição de tratamentos e os animais foram alocados em um único grupo. Desta forma, objetivou-se avaliar o requerimento de resgates analgésicos pós-operatórios por meio da correlação das Escala Analógica Visual (EVA), Escala de dor Composta de Glasgow (GCMPS), Escala de dor Aguda da Universidade do Colorado (EDAUC) e Escala de dor da Universidade de Melbourne (UMPS) em cadelas submetidas à mastectomia total unilateral. A avaliação álgica dos animais foi realizada com o auxílio da EVA, EDAUC, UMPS e GCMPS por meio de dois avaliadores, experiente e não experiente antes da cirurgia (M0), 1 (M1), 2 (M2), 4 (M4), 6 (M6), 8 (M8), 12 (M12) e 24 (M24) horas de pós-operatório. Os resgates analgésicos foram realizados com morfina 0,5 mg/Kg, pela via IM, quando ao menos duas das escalas apresentassem uma pontuação maior ou igual a 50, 2, 9 e 6 pontos respectivamente, e quando esta pontuação fosse observada apenas pelo avaliador experiente. Houve aumento no somatório total de pontos para o escore de dor de M1 a M12 para o avaliador experiente (E) e para o não experiente (NE) para a EVA. Na análise da EDAUC valores maiores em relação a M0 foram observados entre M2 a M8 para o E e de M1 a M12 para o NE. Na GCMPS, maiores escores de dor foram observados entre M1 a M24 para o E e de M1 a M12 para o NE. Já na análise da UMPS o aumento do somatório total de pontos para os escores de dor foram evidenciados entre M1 a M24 para o E e NE. A melhor correlação geral foi de 0,775 entre a GCMPS e a EDAUC e entre os avaliadores foi de 0,925 para a GCMPS. Capítulo I: Conclui-se que a infusão contínua de cetamina promove adequada estabilidade cardiorrespiratória e hemogasométrica, proporciona excelente analgesia adicional no período transoperatório, porém a administração do meloxicam e da morfina no pós-operatório imediato mascarou os efeitos analgésicos pós-operatórios da cetamina, pois não houve diferença no requerimento de resgates analgésicos com morfina, neste período entre os grupos. Capítulo II: Conclui-se que a Escala de dor Composta de Glasgow, foi mais sensível para detectar a necessidade de resgate analgésico pós-operatório em cadelas submetidas à mastectomia total unilateral, não exigindo experiência prévia pelos avaliadores para avaliação dolorosa

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-04-21T13:58:34Z No. of bitstreams: 1 SIDNEY ACIOLE RODRIGUES - DISSERTAÇÃO PPGEE 2014..pdf: 10747994 bytes, checksum: a201eceb35c011516f93accef0c024f9 (MD5) / Made available in DSpace on 2018-04-21T13:58:34Z (GMT). No. of bitstreams: 1 SIDNEY ACIOLE RODRIGUES - DISSERTAÇÃO PPGEE 2014..pdf: 10747994 bytes, checksum: a201eceb35c011516f93accef0c024f9 (MD5) Previous issue date: 2014-09 / De acordo com a Administração Federal de Alimentos e Medicamentos estadunidense (Food and Drug Administration – FDA), bombas de infusão são consideradas atualmente os dispositivos médicos cuja segurança é a mais crítica, devido à natureza de suas operações e os riscos a elas associados. O projeto destes dispositivos ainda é uma questão em aberto e várias iniciativas de melhoria estão sob investigação. No entanto, as especificações de tais sistemas ainda não estão adaptadas ao estado-da-arte do desenvolvimento de sistemas arquiteturais. Por exemplo, nesta pesquisa não foi possível identificar qualquer projeto que atenda aos padrões, considerando as especificação e documentação de arquiteturas de sistemas e de software durante o processo de engenharia. Em face desta situação, nesta dissertação é apresentada a especificação funcional de uma arquitetura para bombas de infusão que pode ser realizada mediante o emprego de várias tendências tecnológicas para esses produtos, a fim de melhorar a segurança. A especificação arquitetural apresentada foi validada pelo desenvolvimento de um protótipo multicanal de uma bomba de infusão que pode ser programada utilizando dados obtidos a partir de um serviço web, usando um aplicativo de celular, como controle remoto, que permita mudar os parâmetros de infusão de acordo com dados da prescrição médica. Assim, a principal contribuição deste trabalho pode ser apresentada como uma arquitetura distribuída para esse tipo de dispositivo, permitindo a integração com registros eletrônicos de saúde para o domínio de sistemas embarcados que implicam em redução de erros durante a atividade de programação. / According to the Food and Drug Administration - FDA, infusion pumps are currently considered the most safety-critical medical device due to the nature of their operations and associated risks. Design of these devices is still an open question and several improvement initiatives are under research. However, the released specifications of such systems are not yet adapted to the current state-of-art systems architectural developments. For example, in this work, we could not identify any project meeting the patterns of views and viewpoints for specification and documentation of system and software architectures during the engineering process. Due to this, this dissertation proposes a functional specification of an architecture for infusion pumps that can be realized through several technological trends for these products in order to improve safety. The presented architectural specification was validated by the development of a multichannel prototype of an infusion pump that can be programmed through data retrieved from a web service using a mobile application as a remote control and changing the infusion parameters according to medical prescription. Thus, the main contribution of this paper can be presented as a distributed architecture for this sort of device, allowing early integration with Electronic Health Records for the embedded systems domain implying in risk reductions during the programming activity.

Bakgrund: Diabetes mellitus typ 1 är en autoimmun sjukdom som kräver daglig insulinadministrering. När ett barn behandlas med insulinpump ställs höga egenvårdskrav och föräldrarnas involvering är stor. Sjuksköterskan ansvarar för att utbilda och stötta föräldrarna i egenvård och behandling. Syfte: Syftet var att belysa föräldrars upplevelser av insulinpumpsbehandling hos barn med diabetes mellitus typ 1. Metod: En litteraturöversikt baserad på fyra kvalitativa artiklar, två kvantitativa artiklar och fyra artiklar med mixad metodansats vilka analyserades med hjälp av Fribergs analysmodell. Resultat: Resultatet belyser den förändrade vardagen och dess utmaningar som uppstår vid ett liv med ett barn som behandlas med insulinpump. Dessutom påvisas föräldrarnas transition från oro till ett accepterande av livssituationen. Föräldrarnas önskan om att få vardagen att likna den som tidigare varit, och deras upplevda förhoppningar om att förenkla vardagen illustreras. Det påvisades även prövningar i föräldrarollen och svårigheter i att hitta balans mellan ansvar och kontroll barnets självständighet. Diskussion: Resultatet diskuterades mot Orems egenvårdsteori. Teorin är generellt implementerbar vid insulinpumpsbehandling då egenvården är viktig för den metabola kontrollen. Arbetets primära resultat påvisade föräldrarnas behov av stöttning både gällande sig själva och sitt barn. Sjuksköterskan ska skapa omvårdnadsåtgärder anpassade till familjen för en ökad egenvårdsbalans, och möjliggöra att föräldrarna kan överföra egenvårdskapaciteten till barnet. / Background: Diabetes mellitus type 1 is an autoimmune disease which requires daily insulin administration. When a child is treated with insulin pump, the demands on self-care is high and the parents’ spend a lot of time to support their child. Nurses are responsible for the education and support related to self-care. Aim: The aim of the study was to highlight parents’ experiences of a child treated with insulin pump therapy. Method: A literature review based on four qualitative articles, two quantitative articles and four articles with mixed methods. These were analyzed by a model by Friberg.  Results: The result highlights the changing everyday-life and its challenges which arise in life with a child treated with an insulin pump, as well as the parents’ transition from concern to acceptance of their life situation. The parents’ wishes to normalize their life, as well as their hopes of simplifying their everyday-life was desired. The result also showed the difficulties of the parenting role and finding the balance between responsibility and control related to the child’s independence. Discussion: The result was discussed in the light of Orem’s self-care theory. The theory is generally implementable to insulin pump therapy since self-care is important for metabolic control. The primary result of the review demonstrated the parents’ need for support both for themselves and for their child. The nurse shall make self-care actions adapted to the family for an increased self-care balance and enable parents’ to transfer self-care capacity to the child.

As células-tronco adultas possuem capacidade de se transformar em certos tipos de tecidos. Surge desta forma, uma nova modalidade de tratamento para doenças cardíacas, assim, uma avaliação na distribuição e quantificação do número de células por diferentes vias de infusão tornam-se importantes, pois o microambiente e interação célula/célula interferem no processo de transdiferenciação e/ou fusão. Foram utilizados nove cães, com peso entre 25 e 30kg e hígidos, no qual foi realizada punção, separação, marcação e infusão de células mononucleares da medula óssea pelas vias intracoronariana, transendocárdica e venosa retrógrada. Pôde-se observar a presença de células por todo tecido cardíaco em todas as vias, contudo o padrão de distribuição das mesmas difere, no qual há um predomínio de células em tecido conjuntivo, principalmente em epicárdio nas vias transendocárdica e venosa retrógrada e um padrão intersticial muscular intracoronariana. Há diferenças significativas na quantidade de células nas regiões apical, basal, medial e apical quando relacionada à via de infusão (P<0,01). / The adult stem cells have a capacity to transform in different kinds of tissue. It is emerges like a new treatment modality of cardiac diseases, so, an evaluation in cell distribution and quantification by different routes of infusion in heart are necessary, because the microenvironment and the interaction cell/cell age in the transdifferentiation and fusion process. It was used 09 healthy mongrel dogs, with 25 -30kg of weight, which was performed a punction of iliacal crest, bone marrow mononuclear cells separation by Ficoll density, stained with Hoechst and infusion by intracoronary, transendocardial and retrograde routes. The marked cells was observed in all cardiac tissue, however, the pattern of distribution of the same ones differs, however in the transendocardial and retrograde route the cells could be founded mainly into the connective tissue - epicardium and sub-epicardic connective tissue and in the intracoronary route, the cells was observed mainly in the muscular interstice. It was observed a significant number of cells in the atrial, basal, medium and apical cardiac region when related with the route of infusion.

Há um aumento da demanda mundial por materiais de alto desempenho, e os compósitos encaixam-se perfeitamente nesse nicho por serem resistentes e leves. Os compósitos poliméricos são feitos a partir da mistura de resina e reforço, no entanto, existem diversas metodologias para fazê-la. O presente trabalho compara em amplo aspecto, três desses métodos: laminação manual, infusão de resina e pré-impregnado. O primeiro é o método mais simples, o segundo é utilizado principalmente pela indústria náutica, e o terceiro pela indústria aeroespacial. Foram realizados diversos ensaios mecânicos como tração, flexão, cisalhamento, impacto, entre outros, e os resultados foram comparados entre si para demonstrar qualitativamente e quantitativamente as diferenças entre eles. Este trabalho demonstrou que o processo de pré-impregnado produz peças com propriedades cerca de 30% melhores que a infusão de resina, que por sua vez, possui um acréscimo de 25% sobre as propriedades da laminação manual. / There is an increasing worldwide demand for high performance materials, and therefore the composites reach a prominent position for being resistant and light weighted. Polymeric composites are made from mixing a given resin and the fibre; however, there are several different methodologies to do so. This work intends to compare, in a wide array, three of those methods: hand lay-up, resin infusion under flexible tooling and pre-pregs. The first is the simplest of all, the second is mainly used by the marine industry, and the third by the aerospace industry. Several mechanical tests such as tension, flexural, shear, impact, among others, were performed and their results were compared to infer their qualitatively and quantitatively differences. This study shows evidence that pre-preg properties are about 30% better than resin infusion, and the last has 25% better properties than hand lay-up.

Introdução. Apesar das evidências dos efeitos imunomodulatórios da morfina, não há na literatura estudos que tenham comparado a interação entre citocinas, imunidade celular (linfócitos T, B e NK) e a administração prolongada de morfina administrada pelas vias oral ou intratecal em doentes com dor crônica neuropática não relacionada ao câncer. Foram avaliados de forma transversal e comparativa 50 doentes com diagnóstico de dor lombar crônica e com presença de radiculopatia (dor neuropática) previamente operados para tratar hérnia discal lombar (Síndrome Dolorosa Pós- Laminectomia), sendo 18 doentes tratados prolongadamente com infusão de morfina pela via intratecal com uso de sistema implantável no compartimento subaracnóideo (grupo intratecal); 17 doentes tratados prolongadamente com morfina pela via oral (n=17) e 15 doentes tratados com fármacos mas sem opióides (grupo sem opioide). Foram analisadas as concentração das citocinas IL-2, IL-4, IL-8, TNFalfa, IFNy, IL-5, GM-CSF, IL-6, IL-10 e IL-1beta no plasma e no líquido cefalorraquidiano; imunofenotipagem de linfócitos T, B e células NK e avaliados os Índice de Escalonamento de Opióide (em percentagem de opióide utilizada e em mg), dose cumulativa de morfina (mg), duração do tratamento em meses, dose final de morfina utilizada (em mg), e equivalente de morfina por via oral (em mg). Resultados. Não houve diferença estatisticamente significativa entre o número de linfócitos T, B e NK nos doentes com morfina administrada pelas vias IT, VO e os não usuários de morfina. Houve correlação positiva entre as concentrações de linfócitos T CD4 e o Índice de Escalonamento de Opióide (em % e mg) nos doentes tratados com morfina por via intratecal. Houve correlação negativa entre as concentrações de células NK (CD56+) e o Índice de Escalonamento de Opióide (em % e mg) nos doentes tratados com morfina por via intratecal. Houve correlação positiva entre o número de células NK (CD56+) e a dose cumulativa de morfina (em mg) administrada pelas vias intratecal e oral. Houve correlação positiva entre as concentrações de linfócitos T CD8 e a duração do tratamento em meses nos doentes tratados com morfina pela via oral. As concentrações de IL-8 e IL-1beta foram maiores no LCR do que no plasma em todos os doentes da amostra analisada. As concentrações de IFNy no LCR foram maiores nos doentes que utilizavam morfina pela via oral e nos não usuários de morfina do que nos que a utilizavam pela via intratecal. As concentrações de plasmáticas de IL-5 foram maiores nos doentes utilizavam morfina pela via oral ou intratecal do que nos que não a utilizavam. A concentração de IL-5 no LCR correlacionou-se negativamente com a magnitude da dor de acordo com a EVA nos doentes tratados com morfina pelas via oral ou intratecal. Nos doentes tratados com morfina pelas via oral ou intratecal, a concentração de IL-2 no LCR correlacionou-se positivamente com a magnitude da dor de acordo com a EVA e negativamente com o Índice de Escalonamento de Opióide (em % e mg) e a dose cumulativa de morfina (em mg). As concentrações plasmáticas de GMCSF foram maiores nos doentes utilizavam morfina pela via oral ou intratecal do que nos não a utilizavam. A concentração de TNFalfa no LCR nos doentes tratados com morfina pela via intratecal correlacionou-se negativamente com o Índice de Escalonamento de Opióide (em % e mg), a dose cumulativa de morfina (em mg) e dose equivalente por via oral (em mg) de morfina. A concentração plasmática das citocinas IL-6 e IL-10 correlacionou-se negativamente com a duração do tratamento (em meses) nos doentes tratados com morfina administrada pela via oral. O Índice de Escalonamento de Opióide (em mg e %) correlacionou-se negativamente com as concentrações no LCR de IL-2 e TNFalfa nos doentes tratados com morfina administrada pela via intratecal. O Índice de Escalonamento de Opióide (em mg e %) correlacionou-se negativamente com as concentrações no LCR de IL-2 e IL-5 nos doentes tratados com morfina administrada pela via oral. Houve correlação negativa entre a intensidade da dor de acordo com a EVA e as concentrações de IL-5 e IL-2 no LCR nos doentes tratados com morfina administrada pelas vias oral e intratecal. Houve correlação negativa entre a intensidade da dor de acordo com a EVA e as concentrações plasmáticas de IL-4 nos doentes tratados com morfina administrada pela via intratecal. Houve correlação negativa entre a intensidade da dor de acordo com a EVA e as concentrações plasmáticas de IL-1beta nos doentes tratados com morfina administrada pela via intratecal. Conclusões: Os resultados sugerem associações entre citocinas e imunidade celular (células T , B e NK) e o tratamento prolongado com morfina administrada pela via oral ou intratecal. Estes resultados podem contribuir para a compreensão da imunomodulação da morfina administrada por diferentes vias em doentes com dor neuropática crônica não oncológica . São necessários mais estudos sobre os efeitos da morfina sobre o sistema imunológico / Objective: To analyze plasma and cerebrospinal fluid (CSF) cytokine levels and cell-mediated immunity (T, B and NK cells) of chronic neuropathic pain patients under long-term morphine treatment administered through the oral or spinal routes. Design: Cross- sectional clinical and laboratory analysis. Subjects:Fifty ambulatory patients with diagnosis of chronic low back pain and presence of radiculopathy (neuropathic pain) previously operated to treat lumbar disc hernia (failed back surgery syndrome) receiving long term morphine treatment (minimum 180 days); 18 patients receiving long term morphine into the intrathecal space through a implanted pump (\"spinal group\"); 17 patients treated with long-term oral morphine (\"oral group\") and 15 patients treated with non-opioid analgesics (\"without opioid group\"). Methods: Were analyzed plasma and cerebrospinal fluid concentrations of 10 cytokines using a multiplex system (Luminex®) for the following cytokines: IL- 2, IL-4, IL-8, TNFalfa, IFNy, IL-5, GM-CSF, IL-6, IL-10 and IL-1beta; immunophenotyping of lymphocytes T, B and NK cells. Results: There were no significant group demographic differences. No significant T, B and NK cells differences were observed between the 3 groups. CD4 levels and Opioid Escalation Index (OEI) were positively correlated in spninal group. NK cells levels and OEI were negatively correlated in spinal group. NK cells levels and cumulative morphine dose were positively correlated in spninal and oral groups. CSF concentrations of IL-8 and IL-1beta were higher than plasma concentrations in all groups. CSF concentration of FNg were higher in oral and without opioid group. Plasma IL-5 concentrations were higher in the oral and spinal groups compared to without opioid group. CSF concentration of IL-5 was negatively correlated with pain intensity in the oral and spinal groups. CSF concentrations of IL-2 was positively correlated with pain intensity and negatively correlated with OEI and cumulative morphine dose in the oral and spinal groups. GM-CSF plasma concentrations were higher in oral and spinal group compared to without opioid group. TNFa CSF concentrations was negatively correlated with OEI, cumulative morphine dose and equivalent oral morphine dose in the spinal group. IL-6 and IL-10 plasma concentrations were negatively correlated with treatment duration in the oral group. OEI The significant inverse correlations observed between pain intensity and the plasma IL-6 and IL-10 concentrations in patients receiving longterm i.t. opioids for chronic pain management, suggests that these cytokines are worthy of further investigation as possible biomarkers of persistent pain. CSF concentrations of IL-2 and TNFa were negatively correlated with OEI in spinal group. CSF concentrations of IL-2 and IL-5 were negatively correlated with OEI in oral group and with pain intensity in the oral and spinal group. Plasma concentrations of IL-4 was negatively correlated with pain intensity in spinal group. Plasma concentrations of IL-1beta were negatively correlated with pain intensity in spinal group. Conclusions: The results suggest associations between long term morphine treatment administered by oral or spinal routes and cytokines concentrations and cellmediated immunity (T, B and NK cells). These results can contribute to the understanding of immunomodulation by morphine administered through diferent routes in patients with chronic neuropathic non-cancer pain. Further studies on the effects of morphine on the immune system are needed