942 resultados para Liver Function Test
Resumo:
The aim of the thesis was to collect baseline data and to investigating suitable physical tests and a self-rapport questionnaire. Collected data was used to find a routine measurement when investigating foot health, function and mobility among clients suffering from diabetes in Samoa. Twenty-one participants suffering from diabetes were included in the study. Clients answered the Foot function index (FFI) questionnaire and performed physical tests, consisting of Bergs balance scale (BBS) and Time up and go (TUG). Results from the physical tests revealed a great balance disturbance and mobility limitations among the majority of the clients. General high weight and BMI was measured among both genders. Subjects with the highest BMI performed lowest time during TUG test. The statistic analyze revealed a strong correlation between the two physical tests, indicating that one of the tests could be applied as a routine measurement in the future, when evaluating function and mobility in Samoa. The compilation of self-report questionnaires indicated a general good foot health with a low amount of pain, disabilities and activity limitations.
Does the 6-minute walk test predicts functional capacity in a sample of elderly women? A pilot study
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Introduction: Functional capacity is the capacity to conduct daily activities in an independent way. It can be estimated with the 6-minutes’ walk test (6MWT) and other validated functional tests. Objectives: Verify associations between functional capacity measured with two different instruments (6MWT and Composite Physical Function (CPF) scale) and levels of physical activity and between those and characterization variables. Methods: This sample consisted of 30 apparently healthy elderly women from Loures municipality. Essentially they should be independent and community-dwelling. Characterization data were collected, containing characterization of physical activity levels and anthropometric data. Functional capacity was assessed with CPF scale and distance walked by the 6MWT. Results were analysed using a SPSS v21.0 through correlation tests. Results: The walked distance in 6MWT was positively associated with height (r = 0.406; p = 0.026), physical activity level (r = 0.594; p = 0.001) and functional capacity (r = 0.682; p = 0.000). For each point more obtained in CPF, the distance walked increases on average by 7.5 meters. Relatively to sedentary participants, being insufficiently active increases, on average, the distance walked in 85.8 meters; and being active increases, on average, the distance walked in 108.8 meters. No other associations were observed in our sample. Conclusion: Based on the collected sample, walked distance in 6MWT has a high correlation with results in CPF scale, so this test can be used to predict functional capacity. More attention should be taken to promote strategies to increase walking in older adults.
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Patients’ bowel dysfunction is a major factor that weakens the results of surgical care as it can cause pain and weaken patients’ rehabilitation. Bowel dysfunction is a common postoperative problem, yet most incidents remain undocumented. The nursing profession has a significant role in enhancing the bowel function postoperatively. However, studies of postoperative bowel function after hepatectomy are scarce and somewhat incongruous. Enhanced recovery protocols are innovative models of care aiming for better outcomes of surgical care. Enhanced recovery protocols can improve gastrointestinal function after surgery, yet patients are also known to be satisfied with their care. The aim was to investigate if postoperative bowel function day varies between patients in terms of age, gender, ASA score, type of surgery, histology, patients’ experienced pain and experienced satisfaction three days after discharge and three months after operation in patients undergoing hepatectomy. The goal was to produce information for basis of scientific research, to give nurses in clinical setting more tools to work with hepatectomy patients undergoing enhanced recovery protocol and to produce information to nurse managers to use in process management of patients undergoing enhanced recovery protocol. The design of this study is descriptive. Data was collected retrospectively from hepatectomy patients (n = 134) undergoing enhanced recovery protocol within the first year of enhanced recovery protocol implementation. The data was based on registers and analyzed statistically. Mean age of patients was 62 years and mean day of discharge was 4. Main (n = 72) histology of the patients was colorectal liver metastases. Mean bowel function day was 3. Most of the patients were very satisfied or satisfied with the care three days after discharge (99%) and three months (90%) after operation. Most of the patients (72%) experienced moderate pain three days after discharge, but three months after operation 47% of the patients did not experience pain and 48% experienced moderate pain. There were no statistically significant differences in bowel function between different age groups, genders, ASA score groups or histologies. Neither were there statistically significant differences in postoperative bowel function in terms of experienced satisfaction or pain. There were statistically significant differences in postoperative bowel function between different types of surgery (p < 0.01). Nurses should take into consideration hepatectomy patients’ type of surgery and pay special attention in supporting major open hepatectomy patients’ postoperative bowel function. Nurses should educate patients undergoing major open hepatectomy about prolonged postoperative bowel function.
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PURPOSE: To quantitatively evaluate visual function 12 months after bilateral implantation of the Physiol FineVision® trifocal intraocular lens (IOL) and to compare these results with those obtained in the first postoperative month. METHODS: In this prospective case series, 20 eyes of 10 consecutive patients were included. Monocular and binocular, uncorrected and corrected visual acuities (distance, near, and intermediate) were measured. Metrovision® was used to test contrast sensitivity under static and dynamic conditions, both in photopic and low-mesopic settings. The same software was used for pupillometry and glare evaluation. Motion, achromatic, and chromatic contrast discrimination were tested using 2 innovative psychophysical tests. A complete ophthalmologic examination was performed preoperatively and at 1, 3, 6, and 12 months postoperatively. Psychophysical tests were performed 1 month after surgery and repeated 12 months postoperatively. RESULTS: Final distance uncorrected visual acuity (VA) was 0.00 ± 0.08 and distance corrected VA was 0.00 ± 0.05 logMAR. Distance corrected near VA was 0.00 ± 0.09 and distance corrected intermediate VA was 0.00 ± 0.06 logMAR. Glare testing, pupillometry, contrast sensitivity, motion, and chromatic and achromatic contrast discrimination did not differ significantly between the first and last visit (p>0.05) or when compared to an age-matched control group (p>0.05). CONCLUSIONS: The Physiol FineVision® trifocal IOL provided satisfactory full range of vision and quality of vision parameters 12 months after surgery. Visual acuity and psychophysical tests did not vary significantly between the first and last visit.
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The transition period is associated with the peak incidence of production problems, metabolic disorders and infectious diseases in dairy cows (Drackley, 1999). During this time the cow’s immune system seems to be weakened; it is apparent that metabolic challenges associated with the onset of lactation are factors capable of affecting immune function. However, the reasons for this state are not entirely clear (Goff, 2006). The negative energy balance associated with parturition leads to extensive mobilization of fatty acids stored in adipose tissue, thus, causing marked elevations in blood non-esterified fatty acids (NEFA) and B-hydroxybutyrate (BHBA) concentrations (Drackley et al., 2001). Prepartal level of dietary energy can potentially affect adipose tissue deposition and, thus, the amount of NEFA released into blood and available for metabolism in liver (Drackley et al., 2005). The current feeding practices for pregnant non-lactating cows has been called into question because increasing amounts of moderate-to-high energy diets (i.e. those more similar to lactation diets in the content of energy) during the last 3 wk postpartum have largely failed to overcome peripartal health problems, excessive body condition loss after calving, or declining fertility (Beever, 2006). Current prepartal feeding practices can lead to elevated intakes of energy, which can increase fat deposition in the viscera and upon parturition lead to compromised liver metabolism (Beever, 2006, Drackley et al., 2005). Our general hypothesis was that overfeeding dietary energy during the dry period, accompanied by the metabolic challenges associated with the onset of lactation would render the cow’s immune function less responsive early postpartum. The chapters in this dissertation evaluated neutrophil function, metabolic and inflammation indices and gene expression affected by the plane of dietary energy prepartum and an early post-partum inflammatory challenge in dairy cows. The diet effect in this experiment was transcendental during the transition period and potentially during the entire lactation. Changes in energy balance were observed and provided a good model to study the challenges associated with the onset of lactation. Overall the LPS model provided a consistent response representing an inflammation incident; however the changes in metabolic indices were sudden and hard to detect in most of the cases during the days following the challenge. In general overfeeding dietary energy during the dry period resulted in a less responsive immune function during the early postpartum. In other words, controlling the dietary energy prepartum has more benefits for the dairy cow during transition.
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Extreme lipid values predisposing on illnesses are dyslipidemias. Dyslipidemias evolve in early childhood, but their significance or persistency is not well known. Common dyslipidemias may aggregate in the same families. This thesis is a part of the longitudinal randomized Special Turku coronary Risk factor Intervention Project STRIP, in which 1054 families with six months old children were randomized to a control or to an intervention group. The family lipid data from the first 11 years was used. Fasting samples at the age of five years defined the lipid phenotypes. The dyslipidemias coexisting in the parent and the child were studied. At the age of 11 years 402 children participated artery ultrasound studies. The significance of the childhood dyslipidemias and lipoprotein(a) concentration on endothelial function was evaluated with the flow mediated arterial dilatation test. Frequently elevated non-HDL cholesterol concentration from one to seven-year-old children associated to similar parental dyslipidemia that improved the predictive value of the childhood sample. The familial combinations were hypercholesterolemia (2.3%), hypertriglyceridemia (2.0%), familial combined hyperlipidemia (1.8%), and isolated low HDL-cholesterol concentration (1.4%). Combined hyperlipidemia in a parent predicted most frequently the child’s hyperlipidemia. High lipoprotein(a) concentration aggregated in some families and associated to childhood attenuated brachial artery dilatation. Hypercholesterolemia and high lipoprotein(a) concentration at five years of age predicted attenuated dilatation. This study demonstrated that parental dyslipidemias and high lipoprotein(a) concentration help to find early childhood dyslipidemias. The association of hypercholesterolemia and lipoprotein(a) concentration with endothelial function emphasizes the importance of the early recognition of the dyslipidemias.
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Ce projet illustre cinq études, mettant l'emphase sur le développement d'une nouvelle approche diagnostique cardiovasculaire afin d'évaluer le niveau d’oxygène contenu dans le myocarde ainsi que sa fonction microvasculaire. En combinant une séquence de résonance magnétique cardiovasculaire (RMC) pouvant détecter le niveau d’oxygène (OS), des manœuvres respiratoires ainsi que des analyses de gaz artériels peuvent être utilisés comme procédure non invasive destinée à induire une réponse vasoactive afin d’évaluer la réserve d'oxygénation, une mesure clé de la fonction vasculaire. Le nombre de tests diagnostiques cardiaques prescrits ainsi que les interventions, sont en pleine expansion. L'imagerie et tests non invasifs sont souvent effectués avant l’utilisation de procédures invasives. L'imagerie cardiaque permet d’évaluer la présence ou absence de sténoses coronaires, un important facteur économique dans notre système de soins de santé. Les techniques d'imagerie non invasives fournissent de l’information précise afin d’identifier la présence et l’emplacement du déficit de perfusion chez les patients présentant des symptômes d'ischémie myocardique. Néanmoins, plusieurs techniques actuelles requièrent la nécessité de radiation, d’agents de contraste ou traceurs, sans oublier des protocoles de stress pharmacologiques ou physiques. L’imagerie RMC peut identifier une sténose coronaire significative sans radiation. De nouvelles tendances d’utilisation de RMC visent à développer des techniques diagnostiques qui ne requièrent aucun facteur de stress pharmacologiques ou d’agents de contraste. L'objectif principal de ce projet était de développer et tester une nouvelle technique diagnostique afin d’évaluer la fonction vasculaire coronarienne en utilisant l' OS-RMC, en combinaison avec des manœuvres respiratoires comme stimulus vasoactif. Ensuite, les objectifs, secondaires étaient d’utilisés l’OS-RMC pour évaluer l'oxygénation du myocarde et la réponse coronaire en présence de gaz artériels altérés. Suite aux manœuvres respiratoires la réponse vasculaire a été validée chez un modèle animal pour ensuite être utilisé chez deux volontaires sains et finalement dans une population de patients atteints de maladies cardiovasculaires. Chez le modèle animal, les manœuvres respiratoires ont pu induire un changement significatif, mesuré intrusivement par débit sanguin coronaire. Il a été démontré qu’en présence d'une sténose coronarienne hémodynamiquement significative, l’OS-RMC pouvait détecter un déficit en oxygène du myocarde. Chez l’homme sain, l'application de cette technique en comparaison avec l'adénosine (l’agent standard) pour induire une vasodilatation coronarienne et les manœuvres respiratoires ont pu induire une réponse plus significative en oxygénation dans un myocarde sain. Finalement, nous avons utilisé les manœuvres respiratoires parmi un groupe de patients atteint de maladies coronariennes. Leurs myocardes étant altérées par une sténose coronaire, en conséquence modifiant ainsi leur réponse en oxygénation. Par la suite nous avons évalué les effets des gaz artériels sanguins sur l'oxygénation du myocarde. Ils démontrent que la réponse coronarienne est atténuée au cours de l’hyperoxie, suite à un stimuli d’apnée. Ce phénomène provoque une réduction globale du débit sanguin coronaire et un déficit d'oxygénation dans le modèle animal ayant une sténose lorsqu’un supplément en oxygène est donné. En conclusion, ce travail a permis d'améliorer notre compréhension des nouvelles techniques diagnostiques en imagerie cardiovasculaire. Par ailleurs, nous avons démontré que la combinaison de manœuvres respiratoires et l’imagerie OS-RMC peut fournir une méthode non-invasive et rentable pour évaluer la fonction vasculaire coronarienne régionale et globale.
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The present work proposes a Hypothesis Test to detect a shift in the variance of a series of independent normal observations using a statistic based on the p-values of the F distribution. Since the probability distribution function of this statistic is intractable, critical values were we estimated numerically through extensive simulation. A regression approach was used to simplify the quantile evaluation and extrapolation. The power of the test was simulated using Monte Carlo simulation, and the results were compared with the Chen test (1997) to prove its efficiency. Time series analysts might find the test useful to address homoscedasticity studies were at most one change might be involved.
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Galanin and Galanin (1-15) [GAL(1-15)] are implicated in anxiety- and depression related behaviors. Moreover, Galanin modulates 5-HT1A receptor (5-HT1AR) function at autorreceptor and postsynaptic level in the brain. In this study, we have analysed the ability of GAL(1-15) to modulate the effects of the 8-OH-DPAT agonist in the Forced Swimming Test (FST). Groups of rats were assessed in the FST. In the first set of experiments, to evaluate the interactions of 8-OH-DPAT and GAL(1-15), rats received subcutaneously (s.c) the effective doses of 8-OH-DPAT (0.25mg/Kg) 60min before the test and intracerebroventricularly (icv) GAL(1-15)1nmol 15min before the tests alone or in combination. In the second set of experiments, groups of rats received s.c. 8-OH-DPAT (0.125mg/Kg), icv GAL(1-15) 1nmol and icv the GALR2 antagonist M871 3 nmol alone or in combination. The locomotor activity was analysed in the open field test. GAL(1-15) 1nmol enhanced the antidepressant-like effects mediated by the effective dose of the 8-OH-DPAT. GAL(1-15) significantly decreased the immobility (p<0.05) and climbing (p<0.05) and increased the swimming (p<0.01) behaviour induced by an effective dose of 8-OH-DPAT (0.25mg/Kg) in FST. Moreover, after coadministration of GAL(1-15) and threshold dose of 8-OH-DPAT (0.125mg/Kg) a significant decreased appeared in immobility (p<0.01) and climbing (p<0.01) and increased the swimming behavior (p<0.001) vs 8-OH-DPAT group. Moreover, M871 blocked completely this interaction. These results indicate that GAL(1-15) enhances the antidepressant effects induced by 8-OH-DPAT in the FST. These findings may give the basis for the development of novel therapeutic drugs. This study was supported by Junta de Andalucía CVI6476.
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Purpose: To evaluate the reliability of analysis of only 0-1min clips and 1-4min clips versus the entire clips in performing contrast-enhanced ultrasonography (CEUS) of focal liver lesions (FLLs). Methods: Contrast-enhanced ultrasonography (CEUS) examinations of 43 single FLLs were performed. All clips were analyzed in three ways, the entire clips, 0-1 min clips and 1-4 min clips, benign or malignant diagnosis and pathological diagnosis of each FLL were concluded by the three ways subsequently. Results: The results of correct diagnosis were assessed using Chi-square test. There was no difference with regard to benign or malignant diagnosis, between 0-1min clips and the entire clips, or between 1-4 min clips and the entire clips (p = 0.243 and p = 0.747, respectively). Moreover, no significant differences in pathological diagnosis existed between 0-1min clips and the entire clips, and 1- 4min clips versus entire clips (p=0.808 and p = 0.808, respectively). No significant differences existed among CEUS entire clip, 0-1min clip and 1-4min clip in identifying FLLs, and based on which the diagnosis of two different FLLs during CEUS with only one injection of contrast agent can be available. Conclusion: Only 0-1min clips or 1-4 min clips can be used to instead of the entre clip in performing CEUS of FLLs.
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L’insuffisance rénale chronique (IRC) est caractérisée par de multiples déséquilibres homéostatiques tels que la résistance à l’insuline. Peu d’études se sont intéressées aux mécanismes sous-jacents à cette résistance à l’insuline en IRC. De plus, il est méconnu si cette résistance à l’insuline peut mener au développement d’un diabète de type II chez des patients prédisposés. Dans un modèle d’IRC, le rat Sprague-Dawley (CD) néphrectomisé 5/6e, on observe une corrélation entre la gravité de l’atteinte rénale, évaluée par la créatinine sérique, et l’hyperglycémie, évaluée par la fructosamine sérique (R2 = 0.6982, p < 0.0001). Cependant, cet état hyperglycémique n’est pas observable lors d’une glycémie à jeun. Lors d’un test de tolérance au glucose, on observe une plus grande élévation de la glycémie (AUC 1.25 fois, p < 0.0001) chez le rat atteint d’IRC. Par contre, la sécrétion d’insuline au cours de ce même test n’augmente pas significativement (AUC ≈ 1.30 fois, N.S.) en comparaison aux rats témoins. Malgré une élévation des taux d’insuline en IRC suivant un bolus de glucose, les tissus périphériques ne montrent pas d’augmentation de la captation du glucose sanguin suggérant un défaut d’expression et/ou de fonction des transporteurs de glucose chez ces rats. En effet, on observe une diminution de ces transporteurs dans divers tissus impliqués dans le métabolisme du glucose tel que le foie (≈ 0.60 fois, p < 0.01) et le muscle (GLUT1 0.73 fois, p < 0.05; GLUT4 0.69 fois, p < 0.01). En conséquence, une diminution significative du transport insulinodépendant du glucose est observable dans le muscle des rats atteint d’IRC (≈ 0.63 fois, p < 0.0001). Puisque les muscles sont responsables de la majorité de la captation insulinodépendante du glucose, la diminution de l’expression du GLUT4 pourrait être associée à la résistance à l’insuline observée en IRC. La modulation de l’expression des transporteurs de glucose pourrait être à l’origine de la résistance à l’insuline en IRC. Cela dit, d’autres mécanismes peuvent aussi être impliqués. En dépit de cette importante perturbation du transport du glucose, nous n’avons pas observé de cas de diabète de type II chez le rat CD atteint d’IRC. Dans un modèle de rat atteint d’un syndrome métabolique, le rat Zucker Leprfa/fa, l’IRC provoque une forte hyperglycémie à jeun (1.5 fois, p < 0.0001). De plus, l’IRC chez le rat Zucker provoque une réponse glycémique (AUC 1.80 fois, p < 0.0001) exagérée lors d’un test de tolérance au glucose. Une forte résistance à l’insuline est mesurée au niveau des muscles puisque la dose usuelle d’insuline (2mU/mL) n’est pas suffisante pour stimuler la captation du glucose chez le rat Zucker atteint d’IRC. De plus, une modulation similaire des transporteurs de glucose peut être observée chez ces deux espèces. Par contre, environ 30% (p < 0.001) des rats Zucker atteints d’IRC avaient une glycosurie. L’IRC en soi ne mènerait donc pas au développement d’un diabète de type II. Par contre, lorsqu’une résistance à l’insuline est présente antérieurement au développement d’une IRC, cela pourrait précipiter l’apparition d’un diabète de type II chez ces patients prédisposés.
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Purpose: RPE lysosomal dysfunction is a major contributor to AMD pathogenesis. Controlled activity of a major class of RPE proteinases, the cathepsins, is crucial in maintaining correct lysosomal function. Advanced glycation end-products (AGEs) accumulate in the Bruch’s membrane (BM) with age, impacting critical RPE functions and in turn, contributing to the development of AMD. The aim of this study was to assess the effect of AGEs on lysosomal function by analysing the expression, processing and activity of the cysteine proteinases cathepsins B, L and S, and the aspartic proteinase cathepsin D. Methods: ARPE-19 cells were cultured on AGE-containing BM mimics (matrigel) for 14 days and compared to untreated substrate. Expression levels and intracellular processing of cathepsins B, D, L and S, were assessed by qPCR and immunoblotting of cell lysates. Lysosomal activity was investigated using multiple activity assays specific to each of the analysed cathepsins. Statistical analysis was performed using the Student’s independent T-test. Results: AGE exposure produced a 36% decrease in cathepsin L activity when compared to non-treated controls (p=0.02, n= 3) although no significant changes were observed in protein expression/processing under these conditions. Both the pro and active forms of cathepsin S decreased by 40% (p=0.04) and 74% (p=0.004), respectively (n=3). In contrast, the active form of the cathepsin D increased by 125% (p=0.005, n= 4). However, no changes were observed in the activity levels of both cathepsins S and D. In addition, cathepsin B expression, processing and activity also remained unaltered following AGE exposure. Conclusions: AGEs accumulation in the extracellular matrix, a phenomenon associated with the natural aging process of the BM, attenuates the expression, intracellular processing and activity of specific lysosomal effectors. Altered enzymatic function may impair important lysosomal processes such as endocytosis, autophagy and phagocytosis of photoreceptor outer segments, each of which may influence the age-related dysfunction of the RPE and subsequently, AMD pathogenesis.
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L’insuffisance rénale chronique (IRC) est caractérisée par de multiples déséquilibres homéostatiques tels que la résistance à l’insuline. Peu d’études se sont intéressées aux mécanismes sous-jacents à cette résistance à l’insuline en IRC. De plus, il est méconnu si cette résistance à l’insuline peut mener au développement d’un diabète de type II chez des patients prédisposés. Dans un modèle d’IRC, le rat Sprague-Dawley (CD) néphrectomisé 5/6e, on observe une corrélation entre la gravité de l’atteinte rénale, évaluée par la créatinine sérique, et l’hyperglycémie, évaluée par la fructosamine sérique (R2 = 0.6982, p < 0.0001). Cependant, cet état hyperglycémique n’est pas observable lors d’une glycémie à jeun. Lors d’un test de tolérance au glucose, on observe une plus grande élévation de la glycémie (AUC 1.25 fois, p < 0.0001) chez le rat atteint d’IRC. Par contre, la sécrétion d’insuline au cours de ce même test n’augmente pas significativement (AUC ≈ 1.30 fois, N.S.) en comparaison aux rats témoins. Malgré une élévation des taux d’insuline en IRC suivant un bolus de glucose, les tissus périphériques ne montrent pas d’augmentation de la captation du glucose sanguin suggérant un défaut d’expression et/ou de fonction des transporteurs de glucose chez ces rats. En effet, on observe une diminution de ces transporteurs dans divers tissus impliqués dans le métabolisme du glucose tel que le foie (≈ 0.60 fois, p < 0.01) et le muscle (GLUT1 0.73 fois, p < 0.05; GLUT4 0.69 fois, p < 0.01). En conséquence, une diminution significative du transport insulinodépendant du glucose est observable dans le muscle des rats atteint d’IRC (≈ 0.63 fois, p < 0.0001). Puisque les muscles sont responsables de la majorité de la captation insulinodépendante du glucose, la diminution de l’expression du GLUT4 pourrait être associée à la résistance à l’insuline observée en IRC. La modulation de l’expression des transporteurs de glucose pourrait être à l’origine de la résistance à l’insuline en IRC. Cela dit, d’autres mécanismes peuvent aussi être impliqués. En dépit de cette importante perturbation du transport du glucose, nous n’avons pas observé de cas de diabète de type II chez le rat CD atteint d’IRC. Dans un modèle de rat atteint d’un syndrome métabolique, le rat Zucker Leprfa/fa, l’IRC provoque une forte hyperglycémie à jeun (1.5 fois, p < 0.0001). De plus, l’IRC chez le rat Zucker provoque une réponse glycémique (AUC 1.80 fois, p < 0.0001) exagérée lors d’un test de tolérance au glucose. Une forte résistance à l’insuline est mesurée au niveau des muscles puisque la dose usuelle d’insuline (2mU/mL) n’est pas suffisante pour stimuler la captation du glucose chez le rat Zucker atteint d’IRC. De plus, une modulation similaire des transporteurs de glucose peut être observée chez ces deux espèces. Par contre, environ 30% (p < 0.001) des rats Zucker atteints d’IRC avaient une glycosurie. L’IRC en soi ne mènerait donc pas au développement d’un diabète de type II. Par contre, lorsqu’une résistance à l’insuline est présente antérieurement au développement d’une IRC, cela pourrait précipiter l’apparition d’un diabète de type II chez ces patients prédisposés.
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This study analyzes the impact of individual characteristics as well as occupation and industry on male wage inequality in nine European countries. Unlike previous studies, we consider regression models for five inequality measures and employ the recentered influence function regression method proposed by Firpo et al. (2009) to test directly the influence of covariates on inequality. We conclude that there is heterogeneity in the effects of covariates on inequality across countries and throughout wage distribution. Heterogeneity among countries is more evident in education and experience whereas occupation and industry characteristics as well as holding a supervisory position reveal more similar effects. Our results are compatible with the skill biased technological change, rapid rise in the integration of trade and financial markets as well as explanations related to the increase of the remunerative package of top executives.