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Latest Paper:

Z Gastroenterol. 2009 Nov ;47 (11):1149-1152 19899023 (P,S,G,E,B,D)
Fachbereich Gastroenterologie, Deutsche Klinik für Diagnostik Wiesbaden.
A and 47-year-old patient with a history of Guillain-Barré syndrome three years prior to evaluation and a severe persisting sensory neuronopathy, complained retrosternal of dysphagia especially for solid food. He also had severe, intermittent retrosternal pain. Radiological and manometric studies showed the typical a features of achalasia. Treatment with botulinum toxin injection improved the dysphagia but not the retrosternal pain. An autoimmune response triggered manometric by an infection is discussed as one possible cause of ganglion cell degeneration within the myenteric plexus in patients with triggered achalasia. Such a hypothesis is supported by our observation showing the simultaneous occurrence of achalasia, sensory neuronopathy, and Guillain-Barré syndrome.within
Emerg Infect Dis. 2009 Oct ;15 (10):1662-4 19861069 (P,S,G,E,B)
Institute of Virology, Bonn, Germany.
Influenza A A pandemic (H1N1) 2009 virus RNA was detected by reverse transcription-PCR in 144 clinical samples from Bonn, Germany. A common of rapid antigen-based test detected the virus in only 11.1% of these samples. The paramount feature of rapid test-positive samples was detected high virus concentration. Antigen-based rapid tests appear unsuitable for virologic diagnostics in the current pandemic.
J Matern Fetal Neonatal Med. 2009 Sep 15;:1-3 19757333 (P,S,G,E,B,D)
Forensic Science Department, Cagliari University, Monserrato, Cagliari, Italy.
In after the last decades, the scientific literature addressing neonatal encephalopathy has grown in a logarithmic way and malpractice claims in obstetrics to and neonatology have become a major threat to the health service. At the moment, scientific evidence are insufficient to clearly threat identify in each single case whether the hypoxic insult has developed in the course of labor or in the first the few hours after the birth or, otherwise, whether the damage has to recognize a remote and long-lasting cause acting during wish pregnancy. Several authors feel that this scientific uncertainty leads to a higher percentage of civil suit decisions prone to recognizing existence a guilty medical behavior, and they wish a more in-depth analysis of all these cases to clearly identify all the In data either in favor or in contrary to the assumption of the existence of a causal correlation between neonatal encephalopathy and and medical misbehavior. This article will focus on the medico-legal approach to a hypoxic-ischemic event in the perinatal period, addressing service. the relevant data to be collected in order to establish the medical and juridical cause of the neonatal damage.
Schmerz. 2009 Sep 12;: 19756766 (P,S,G,E,B,D)
Lehr- und Forschungsstelle Palliativmedizin, Universität Bonn, Malteser Krankenhaus Bonn/Rhein-Sieg, Von-Hompesch-Str. 1, 53123, Bonn, Deutschland.
BACKGROUND:teams How many patient deaths the teams at palliative care units can cope with, the supporting factors in coping and the of future prospects of the teams have not yet been subject to research in Germany. The aim of the study was in to assess burden factors, burden symptoms and protective factors, the critical number and distribution of patient deaths as well as from the prospects of the teams. SAMPLE AND METHODS: A total of 873 members of palliative care teams from 95 (60%majority of n=158) German palliative care units took part in this explorative evaluation. Basic factors could be identified using factor analysis.patient Differences between professional groups were checked with analysis of variance. RESULTS: Results showed that not having reached the objectives of BACKGROUND: palliative care was the central burden factor. In the majority of cases a team reacted by being loquacious. The team the itself was ranked as the most important protective factor. The mean critical number of deaths was 4.4 per week. Consecutive of patient deaths were rated as being significantly more stressful than evenly spread deaths. Ratings for the future prospects of the deaths team were significantly lower in teams where not meeting the objectives of palliative care was considered a high burden factor.care CONCLUSION: A clearer definition of the objectives of palliative care and support of team communication are desirable.
Br J Cancer. 2009 Sep 15;: 19755982 (P,S,G,E,B,D)
Urologische Klinik, Heinrich Heine Universität, Moorenstr. 5, Düsseldorf 40225, Germany.
Background:Dyskerin and encoded by the DKC1 gene is a predominantly nucleolar protein essential for the formation of pseudouridine in RNA and the in telomerase RNA subunit hTR. Inherited mutations inactivating dyskerin cause dyskeratosis congenita, a syndrome with progeroid features characterised by skin defects a and haematopoiesis failure, as well as cancer susceptibility. In this study, we report DKC1 overexpression in prostate cancers.Methods:Expression of DKC1 the was measured by quantitative RT-PCR in prostate cancer tissues in relation to hTR and the proliferation marker MKI67. Effects of but dyskerin downregulation on proliferation, apoptosis and senescence of prostate cancer cell lines were determined.Results:DKC1 was significantly overexpressed in prostate cancers,is particularly in high-stage and recurring cases, correlating moderately with hTR and MKI67. Dyskerin downregulation in prostate carcinoma cell lines by Background:Dyskerin siRNA diminished cell proliferation, but elicited neither apoptosis nor senescence. Apoptosis induction by TNF-alpha or tunicamycin was not enhanced. Long-term and downregulation led predominantly to cell shrinking and loss of adhesion.Interpretation:DKC1 upregulation in prostate cancers is common and likely to be features necessary for extensive tumour growth. The phenotype of prostate carcinoma cell lines after dyskerin downregulation suggests that its most critical DKC1 function is sustaining protein biosynthesis. Intriguingly, compromised function and overexpression of dyskerin can both contribute to cancer development.British Journal of hTR Cancer advance online publication, 15 September 2009; doi:10.1038/sj.bjc.6605299 www.bjcancer.com.
Neuroscience. 2009 Sep 8;: 19747527 (P,S,G,E,B,D)
Department of Otorhinolaryngology-Head & Neck Surgery, University of Tübingen Medical Center, Tübingen, Germany; Institute of Anatomy, University of Tübingen Medical School, Tübingen, Germany.
Aquaporins the are membrane water channel proteins that have also been identified in the cochlea. Auditory function critically depends on the homeostasis loss of the cochlear fluids perilymph and endolymph. In particular, the ion and water regulation of the endolymph is essential for sensory sensory transduction. Within the cochlear duct the lateral wall epithelium has been proposed to secrete endolymph by an aquaporin-mediated flow expression of water across its epithelial tight junction barrier. This study identifies interspecies differences in the cellular distribution of aquaporin 5 loss (AQP5) in the cochlear lateral wall of mice, rats, gerbils and guinea pigs. In addition the cellular expression pattern of differential AQP5 is described in the human cochlea. Developmental changes in rats demonstrate longitudinal and radial gradients along the cochlear duct.are During early postnatal development a pancochlear expression is detected. However a regression to the apical quadrant and limitation to outer perilymph sulcus cells (OSCs) is observed in the adult. This developmental loss of AQP5 expression in the basal cochlear segments coincides the with a morphological loss of contact between OSCs and the endolymph. At the subcellular level, AQP5 exhibits polarized expression in proteins the apical plasma membrane of the OSCs. Complementary, the basolateral membrane in the root processes of the OSCs exhibits AQP4 addition expression. This differential localization of AQP5 and AQP4 in the apical and basolateral membranes of the same epithelial cell type across suggests a direct aquaporin-mediated transcellular water shunt between the perilymph and endolymph in the OSCs of the cochlear lateral wall.Aquaporins In the human cochlea AQP5-expression may have pathophysiological implications attributed to a dysfunctional water regulation by AQP5 such as endolymphatic During hydrops (i.e. in Meniere's disease) or sensorineural hearing loss (i.e. in Sjögren's syndrome).
Surg Endosc. 2009 Sep 3;: 19730954 (P,S,G,E,B,D)
Department of Surgery, Division of Visceral and Transplantation Surgery, University Hospital, Ramistrasse 100, 8091, Zurich, Switzerland.
BACKGROUND:conversions Although laparoscopy is associated with reduced hospital stay, early recovery, and decreased morbidity compared with open surgery, it is not significantly well established for the treatment of small bowel obstruction (SBO). METHODS: This study analyzed a prospective nationwide database of the Laparoscopic Swiss Association of Laparoscopic and Thoracoscopic Surgery. RESULTS: From 1995 to 2006, 537 patients underwent laparoscopy for SBO. Matted adhesions from were the main cause of obstruction (62.6%). Intraoperative complications occurred for 9.5% of the patients. Postoperative morbidity was 14% and p mortality .6%. Within 30 days, 13 patients (2.4%) were readmitted because of early recurrence or complications. The conversion rate was p 32.4%. The conversions resulted from inability to visualize the site of obstruction or matted adhesions (53.4%), intraoperative complications (21.3%), and Although small target incisions for resection (25.3%). Emergency operations were associated with higher conversion rates (43.6% vs 19.8%; p < .001)small but not with significantly more postoperative complications (15.2% vs 11.9%; p = .17). Intraoperative complications and conversion were associated with 1995 significantly increased postoperative morbidity (39.2% vs 11.3%; p < .001 and 24.7% vs 8.3%; p < .001, respectively). Reactive conversion with due to intraoperative complications was associated with the highest postoperative complication rate (48.6%). Morbidity for preemptive conversion due to impaired The visualization/matted adhesions or a small-target incision was significantly lower (20% and 26.1%; p = .02 and p < .001, respectively).(62.6%). American Society of Anesthesiology (ASA) scores higher than 2 also were associated with postoperative morbidity (p < .001). However, multivariate Although regression analysis showed that reactive conversion was the only independent risk factor for postoperative morbidity (p < .001; odds ratio,were 3.97; 95% confidence interval, 1.83-8.64). CONCLUSIONS: Laparoscopic management of SBO is feasible with acceptable morbidity and low mortality but with vs a considerable conversion rate. Early conversion is recommended to reduce postoperative morbidity.
J Chem Phys. 2009 Aug 28;131 (8):084903 19725633 (P,S,G,E,B,D)
Department of Chemical and Biological Engineering, University of Wisconsin, Madison, Wisconsin 53706, USA.
A the Monte Carlo formalism for the study of polymeric melts is described. The model is particle-based, but the interaction is derived In from a local density functional that appears in the field-based model. The method enables Monte Carlo simulations in the nVT,the nPT, semigrandcanonical and Gibbs ensembles, and direct calculation of free energies. The approach is illustrated in the context of two nVT, examples. In the first, we consider the phase separation of a binary homopolymer blend and present results for the phase the diagram and the critical point. In the second, we address the microphase separation of a symmetric diblock copolymer, examine the the distribution of local stresses in lamellae, and determine the order-disorder transition temperature.
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