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91.
92.
Zoé Rheinsberg Ramin Parsa-Parsi Otmar Kloiber Urban Wiesing 《Medicine, health care, and philosophy》2018,21(2):189-196
The Declaration of Geneva is one of the core documents of medical ethics. A revision process was started by the World Medical Association (WMA) in 2016. The WMA has also used this occasion to examine how the Declaration of Geneva is used in countries throughout the world by conducting a survey of all WMA constituent members. The findings are highly important and raise urgent questions for the World Medical Association and its National Medical Associations (NMA): The Declaration of Geneva is only rarely used as an oath text despite the fact that physicians’ oaths are generally widespread. This is not consistent with the intention and claim of the Declaration of Geneva. The article then discusses three questions. Should there be one single binding oath? Which organization should be responsible for such an oath? Which oath is the most obvious candidate? In a globalized world and despite all cultural diversity, the medical profession should have one core moral basis which is binding for physicians all over the world. The most obvious candidate for an oath incorporating this moral basis is the Declaration of Geneva. 相似文献
93.
P. Urban 《Der Nervenarzt》2017,88(12):1439-1459
Cranial nerve lesions require a thorough diagnostic work-up and known etiologies have to be excluded before the term idiopathic can be considered. The focus of the present review is on idiopathic peripheral facial nerve paralysis (Bell’s palsy) for which this terminology has been established. For all other cranial nerve lesions the typical clinical signs, established etiologies and possible diagnostic pitfalls are discussed. 相似文献
94.
Charlotte M Höög Olle Broström Tomas L Lindahl Andreas Hillarp Gerd Lärfars Urban Sjöqvist 《BMC gastroenterology》2010,10(1):113
Background
Angioectasias in the gastrointestinal tract can be found in up to 3% of the population. They are typically asymptomatic but may sometimes result in severe bleeding. The reasons for why some patients bleed from their angioectasias are not fully understood but it has been reported that it may be explained by an acquired von Willebrand syndrome (AVWS). This condition has similar laboratory findings to congenital von Willebrand disease with selective loss of large von Willebrand multimers. The aim of this study was to find out if AVWS or any other bleeding disorder was more common in patients with bleeding from angioectasias than in a control group. 相似文献95.
Zeitschrift für Herz-,Thorax- und Gefäßchirurgie - Abhängig vom Ausmaß der vorliegenden Erkrankung und des chirurgischen Eingriffs erfordern Operationen an der thorakalen... 相似文献
96.
97.
Effect of small bowel resection on the intestinal surface acid microclimate in the rat 总被引:1,自引:0,他引:1
The effect of extensive (65%) proximal and middle small bowel resection on the intestinal surface acid microclimate (ISAM) of the remaining ileum in the rat was examined and the results were compared to those of sham-operated rats. ISAM pH measurements were performed in vivo using a pH microelectrode; incubation was performed in Krebs-Ringer phosphate buffer (pH 7.40 +/- 0.02). In the resected rats, ISAM pH of 6.03 +/- 0.07 and 7.22 +/- 0.03 were recorded in the proximal and distal part of the remaining ileum, respectively. In the sham-operated rats, ISAM pH of 6.04 +/- 0.07, 6.98 +/- 0.03 and 7.28 +/- 0.02 were recorded in the proximal jejunum and in the proximal and distal part of the corresponding ileal segment. ISAM pH was significantly lower (p less than 0.01) in the proximal part of the remaining ileum of the resected rats as compared to the corresponding part in the sham-operated rats but was similar in distal ileum. In fact, the ISAM pH of the proximal part of the remaining ileum of resected rats was as acidic as that of the jejunum of the sham-operated rats. These results clearly demonstrate that adaptation in the ISAM occurs in the remaining ileum following extensive resection of proximal and middle small intestine. 相似文献
98.
Mapping of the hepatitis B virus attachment site by use of infection-inhibiting preS1 lipopeptides and tupaia hepatocytes 总被引:16,自引:0,他引:16
Glebe D Urban S Knoop EV Cag N Krass P Grün S Bulavaite A Sasnauskas K Gerlich WH 《Gastroenterology》2005,129(1):234-245
BACKGROUND & AIMS: Studies on the early steps in the life cycle of hepatitis B virus have been hampered by the lack of readily available target cells. In this study, we mapped a defined virus attachment site to primary hepatocytes that is essential for infection. METHODS: We used purified virus particles from human carrier plasma as an inoculum and primary cultures of tupaia hepatocytes as susceptible target cells and studied the inhibitory effect of amino-terminally acylated preS1-derived lipopeptides on infection interference. RESULTS: Infectivity of virus could be blocked efficiently in this system by amino-terminally acylated peptides containing amino acids 2-18 from the preS1 domain. The addition of amino acids 28-48 enhanced the inhibitory capacity, whereas amino acids 49-78 did not contribute to inhibition. Myristoylated preS1 peptides 2-48 bound strongly to tupaia hepatocytes but not to nonhepatic cells or rodent hepatocytes and thereby inhibited infection even at concentrations of 1 nmol/L completely. Particles consisting only of the small hepatitis B surface protein-the active component of current hepatitis B vaccines-did not bind at all to tupaia hepatocytes, but the addition of the preS1 domain to the particles allowed binding. CONCLUSIONS: The preS1 sequence 2-48 mediates attachment of the virus to its target cells, whereas the small surface protein seems to be involved in other steps. These findings indicate that the current subunit hepatitis B vaccines may be improved by the addition of distinct preS1 epitopes. Moreover, preS1 lipopeptides are promising candidates for specific antiviral therapy against hepatitis B infections. 相似文献
99.
Endocrine regulation of the balance between skeletal muscle anabolism and catabolism has been investigated extensively. Factors determining whether hormones exert anabolic or catabolic influences are multifaceted and often unclear. Testosterone, growth hormone, insulin and insulin-like growth factor-I have complex anabolic effects, some of which have only recently been elucidated, and are important regulators of muscle remodeling, whereas glucocorticoids have direct catabolic effects and induce muscle protein loss. The effects of estrogen are poorly understood and warrant further study. We review recent literature and evaluate the hormones driving skeletal muscle anabolism and catabolism, which ultimately dictate the endocrinology and metabolism of skeletal muscle in humans. Understanding hormonal regulation of skeletal muscle remodeling might facilitate development of improved hormone-mediated therapies for muscle wasting conditions. 相似文献
100.
The effect of vagotomy on gallbladder function was investigated in a clinical and experimental study. In the clinical study both the size of the gallbladder and its capacity to respond to cholecystokinin were evaluated radiologically before and after vagotomy. In studies in the rabbit, both the immediate effect of vagotomy on the gallbladder and the effect of varying doses of cholecystokinin on gallbladder pressure were studied before and after vagotomy. In studies in the cat the long-term effect of vagotomy was studied with respect to the histology of the gallbladder and the composition of bile.The clinical investigation showed that vagotomy was followed by a significant increase in the volume of the gallbladder and that the effect of the cholecystokinin on the gallbladder remained unchanged after vagotomy. In experiments in the rabbit it was found that cholecystokinin in a dose of 1 unit/kg body weight exerted a somewhat lesser effect on gallbladder pressure after vagotomy than before, while after vagotomy a dose, approximately four times greater, resulted in a stronger gallbladder response. Further, the experiments showed that the chemical composition of the bile seemed to be altered after vagotomy, while the gallbladder remained histologically essentially unchanged. 相似文献