96 research outputs found

    Tubulopathy in nephrolithiasis: Consequence rather than cause

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    Tubulopathy in nephrolithiasis: Consequence rather than cause. To address whether a renal tubular dysfunction is encountered in a particular patient subgroup with urolithiasis, the following parameters of tubular function were measured in urine taken in the morning from 214 stone formers after fasting: pH, excretion of lysozyme and Îł-glutamyl transferase (Îł-GT); fractional excretion (FE) of glucose, insulin, Mg, K, and HCO3 after an alkali loading; and the renal threshold for phosphate (TmP/GFR). The following diagnoses were made in the patient group: primary hyperparathyroidism (N = 8), medullary sponge kidneys (N = 21), hyperuricemia (N = 10), cystinuria (N = 2), struvite stone disease (N = 6), idiopathic hypercalciuria of the absorptive (N = 25), dietary (N = 69) or renal (N = 7) type, and normocalciuric idiopathic urolithiasis (N = 66). In 31% of the patients TmP/GFR was below 0.80 mmole/liter and in 13% of the patients, FE HCO3 after alkali loading was above normal. Urinary excretion of lysozyme and that of Îł-GT both were elevated in 17% of the patients. FE glucose, FE insulin, FE Mg, and FE K were elevated in 8, 9, 3, and 7% of the patients, respectively. This study demonstrates that a significant number of stone formers present with signs of renal tubular dysfunction, primarily involving the proximal tubule since apparent leaks of phosphate and of bicarbonate were most frequently encountered. The defects were not specific for a given etiologic group of patients; on the other hand, occurrence was related to the presence of large stones in the pyelocaliceal system at the time data were gathered. Taken together these data suggest that the tubulopathy in nephrolithiasis is the consequence rather than the cause of the stone

    Effect of diets containing a purified soybean trypsin inhibitor on growth performance, digestive proteases and intestinal histology in juvenile sea bream (Sparus aurata L.)

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    Juvenile sea bream were fed on diets containing 0.0, 2.0 or 4.0 g/kg of a soybean trypsin inhibitor (SBTI) for 30 days. The growth performance, total protease activity and intestinal histology were studied after 0,15 and 30 days of dietary treatment. No signiÂącant diÂĄerences were found in the weight gain, speciÂąc growth rate (SGR) and feed conversion rate in fish fed on inhibitor-supplemented diets when compared with those fed on an inhibitor-free diet. Only the SGR at day 15 decreased signiÂącantly with protease inhibitor inclusion, although this effect was not observed at day 30. In relation to proteolytic activity at day 15, the total protease activity in the distal intestine decreased in Âąsh fed on inhibitor-supplemented diets. Zymograms of these extracts showed that the SBTI reduced the intensity of some proteolytic fractions in the distal intestine. A noticeable reduction in the protease activity of the intestinal content in fish fed onthe highest level of soybean inhibitor (4.0 g/kg) was also observed. However, at day 30, the inhibition eÂĄect on these active bands was not detected, and the total protease activity was similar to that in Âąsh fed on an inhibitor-free diet. Histological examination revealed no perceptible differences in the intestinal structure between any of the diet groups. In addition, all Âąshweremaintained under experimentation for 10 more days and fed on an inhibitor-free diet to determine whether the possible effects caused by the protease inhibitor could be reverted.The administration of SBTI-supplemented diets did not affect sea bream growth performance or intestine histology after 30 days, and only a decrease in the total alkaline protease activity was found at day 15

    De uteri putrescentia : dissertatio inauguralis medica

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    http://tartu.ester.ee/record=b1920922~S1*es

    Kan professionell skepticism anvÀndas för att förutse revisorers beteende?

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    Auditors have a big role in society. The question of auditor independence has been debated frequently after the financial crisis. Long auditor tenure with clients has both advantages and disadvantages so the question is hard to solve. One of the traits that are encouraged with auditors is professional skepticism. An important part of professional skepticism is the personal skepticism of the auditor. The purpose of this dissertation is to investigate if a high professional skepticism can increase auditor independence by increasing profession identification and decreasing client identification. Earlier research in Social Identity Theory has shown that client identification is negatively related to auditor independence and that profession identification is positively related to auditor independence. A quantitative method is used in this dissertation. A survey was sent to 1000 qualified Swedish auditor. 273 of those replied. The material was statistically analyzed to test the different hypothesis in the dissertation. Our survey showed that professional skepticism has no relation to client- and profession identification. There is however a weak positive relation between professional skepticism and auditor independence. The conclusion is that more research is needed to investigate if auditor independence really is affected by the auditor ’s professional skepticism.Revisorer har en stor roll i dagens samhĂ€lle. Efter finanskrisen har frĂ„gan om revisorns oberoende diskuterats flitigt. Det finns bĂ„de för- och nackdelar med att en revisor varit lĂ€nge pĂ„ ett företag och dĂ€rför Ă€r frĂ„gan svĂ„rlöst. En av egenskaperna som uppmuntras hos en revisor Ă€r professionell skepticism. En viktig del av den professionella skepticismen Ă€r revisorns personliga skepticism. Syftet med den hĂ€r uppsatsen Ă€r att pĂ„visa att en hög professionell skepticism hos revisorer kan motverka vissa oberoenderelaterade problem. Mer specifikt undersöks den professionella skepticismens pĂ„verkan pĂ„ revisorns identifikation med klienten och med den egna professionen. Tidigare forskning inom Social Identity Theory har visat att identifikation med klienten Ă€r negativt relaterat till oberoende och att identifikation med den egna professionen Ă€r positivt relaterat till oberoende. I uppsatsen anvĂ€nds en kvantitativ metod. En enkĂ€t skickades till 1000 kvalificerade svenska revisorer varav 273 svarade. Detta material analyserades statistiskt för att pröva hypoteserna i uppsatsen. Undersökning visar att professionell skepticism inte har nĂ„gon pĂ„verkan pĂ„ klient- och professionsidentifikation hos revisorn. Det finns dĂ€remot en svag positiv relation mellan professionell skepticism och revisorns oberoende. Slutsatsen blir dĂ€rför att mer forskning behövs för att undersöka om revisorns oberoende faktiskt pĂ„verkas av revisorns professionella skepticism

    Kan professionell skepticism anvÀndas för att förutse revisorers beteende?

    No full text
    Auditors have a big role in society. The question of auditor independence has been debated frequently after the financial crisis. Long auditor tenure with clients has both advantages and disadvantages so the question is hard to solve. One of the traits that are encouraged with auditors is professional skepticism. An important part of professional skepticism is the personal skepticism of the auditor. The purpose of this dissertation is to investigate if a high professional skepticism can increase auditor independence by increasing profession identification and decreasing client identification. Earlier research in Social Identity Theory has shown that client identification is negatively related to auditor independence and that profession identification is positively related to auditor independence. A quantitative method is used in this dissertation. A survey was sent to 1000 qualified Swedish auditor. 273 of those replied. The material was statistically analyzed to test the different hypothesis in the dissertation. Our survey showed that professional skepticism has no relation to client- and profession identification. There is however a weak positive relation between professional skepticism and auditor independence. The conclusion is that more research is needed to investigate if auditor independence really is affected by the auditor ’s professional skepticism.Revisorer har en stor roll i dagens samhĂ€lle. Efter finanskrisen har frĂ„gan om revisorns oberoende diskuterats flitigt. Det finns bĂ„de för- och nackdelar med att en revisor varit lĂ€nge pĂ„ ett företag och dĂ€rför Ă€r frĂ„gan svĂ„rlöst. En av egenskaperna som uppmuntras hos en revisor Ă€r professionell skepticism. En viktig del av den professionella skepticismen Ă€r revisorns personliga skepticism. Syftet med den hĂ€r uppsatsen Ă€r att pĂ„visa att en hög professionell skepticism hos revisorer kan motverka vissa oberoenderelaterade problem. Mer specifikt undersöks den professionella skepticismens pĂ„verkan pĂ„ revisorns identifikation med klienten och med den egna professionen. Tidigare forskning inom Social Identity Theory har visat att identifikation med klienten Ă€r negativt relaterat till oberoende och att identifikation med den egna professionen Ă€r positivt relaterat till oberoende. I uppsatsen anvĂ€nds en kvantitativ metod. En enkĂ€t skickades till 1000 kvalificerade svenska revisorer varav 273 svarade. Detta material analyserades statistiskt för att pröva hypoteserna i uppsatsen. Undersökning visar att professionell skepticism inte har nĂ„gon pĂ„verkan pĂ„ klient- och professionsidentifikation hos revisorn. Det finns dĂ€remot en svag positiv relation mellan professionell skepticism och revisorns oberoende. Slutsatsen blir dĂ€rför att mer forskning behövs för att undersöka om revisorns oberoende faktiskt pĂ„verkas av revisorns professionella skepticism

    Plasma IGF-1 binding proteins in lean and obese non-diabetic subjects

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    Obese patients have markedly increased plasma insulin concentrations indicating insulin resistance. In contrast, plasma IGF-1 concentrations are little affected. Since the biological effects of IGF-1, including several insulin-like actions, appear to be modulated by serum carrier proteins, alterations of IGF-1 binding proteins were investigated in the serum of lean healthy individuals, and of obese patients with normal glucose tolerance. Obese patients had increased fasting plasma insulin and decreased plasma h-GH concentrations, compared to lean controls. IGF-1 concentrations were similar in both groups. Serum IGF-1 binding proteins were separated by polyacrylamide gel electrophoresis under non-reducing conditions, electroblotted onto a nitrocellulose sheet, and quantified by ligand blot with 125I IGF-1 and autoradiography. IGF-1 binding proteins of apparent molecular weight 42 kDa, 39 kDa, 35 kDa, 30 kDa and 24 kDa were observed. Obese patients had a level of IGF-1 binding proteins of 35 kDa which was decreased to 40 +/- 25% (s.d.) of control values. This 35 kDa protein corresponds to IGF-BP2, which may be involved in glucose homeostasis. It is concluded that alterations of IGF-1 binding proteins are present in obesity and may have consequences for glucose metabolism

    Autobiographical memory variability: individual and social factors

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    Theoretical thesis.Bibliography: pages [277]-306.Chapter 1. Introduction -- Chapter 2. Autobiographical memory variability in the absence of contagion : written, spoken and typed accounts -- Chapter 3. Social context and personality impact memory recall of unshared personal events over repeated retellings -- Chapter 4. Intrinsic variation and contagion across repeated memory retellings -- Chapter 5. Your words or mine : social contagion changes details in retellings of memories of unshared autobiographical events -- Chapter 6. General discussion.In the forensic setting police, lawyers and juries often assume that true memories of the past should not change over time. Contradictions, as well as omissions or new additions, across retellings are often seen as either contamination from others or a sign of deception. In my project I examined how memory accounts change across retellings under a range of conditions. Across a series of four chapters and five experiments I examined and compared the role of social and individual factors in autobiographical memory variation in the absence and presence of contagion. I manipulated aspects of the social interaction and measured different personality and other individual characteristics. I was specifically interested in whether influences from the "self" differed to influences from "others". I aimed to discern baselines and variation thresholds for changes across autobiographical memory retelling among individuals across different social settings. My goal was to better understand the pattern and nature of autobiographical memory variability across retellings and determine how many changes matter. I drew from multidisciplinary research in an attempt to clarify both conceptual and methodological issues about the meaning and the measurement of "contradictions" and other changes in forensic, cognitive and social psychology. This project is significant because it draws on and broadens current theoretical perspectives on memory, as well as considers side by side changes in retellings due to intrinsic variability and changes in retellings due to social contagion.Mode of access: World wide web1 online resource (vii, 361 pages
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