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991.
Rollinger JM Steindl TM Schuster D Kirchmair J Anrain K Ellmerer EP Langer T Stuppner H Wutzler P Schmidtke M 《Journal of medicinal chemistry》2008,51(4):842-851
Inhibitors of the human rhinovirus (HRV) coat protein are promising candidates to treat and prevent a number of upper respiratory diseases. The aim of this study was to find antiviral compounds from nature, focusing on the HRV coat protein. Through computational structure-based screening of an in-house 3D database containing 9676 individual plant metabolites from ancient herbal medicines, combined with knowledge from traditional use, we selected sesquiterpene coumarins from the gum resin asafetida as promising natural products. Chromatographic separation steps resulted in the isolation of microlobidene (1), farnesiferol C (2), farnesiferol B (3), and kellerin (4). Determination of the inhibition of the HRV-induced cytopathic effect for serotypes 1A, 2, 14, and 16 revealed a dose-dependent and selective antirhinoviral activity against serotype 2 for asafetida (IC50 = 11.0 microg/mL) and its virtually predicted constituents 2 (IC50 = 2.5 microM) and 3 (IC50 = 2.6 microM). Modeling studies helped to rationalize the retrieved results. 相似文献
992.
Christiansen E Urban C Merten N Liebscher K Karlsen KK Hamacher A Spinrath A Bond AD Drewke C Ullrich S Kassack MU Kostenis E Ulven T 《Journal of medicinal chemistry》2008,51(22):7061-7064
A series of 4-phenethynyldihydrocinnamic acid agonists of the free fatty acid receptor 1 (FFA(1)) has been discovered and explored. The preferred compound 20 (TUG-424, EC(50) = 32 nM) significantly increased glucose-stimulated insulin secretion at 100 nM and may serve to explore the role of FFA(1) in metabolic diseases such as diabetes or obesity. 相似文献
993.
The seasonal fluctuation of glucosinolates in five defined Isatis tinctoria and one Isatis indigotica accessions (first year, rosette stage), grown on field plots under identical conditions, was investigated. Analysis of the intact glucosinolates was carried out with shock frozen, freeze dried leaf samples using a recently developed and validated PLE (pressurized liquid extraction) protocol and ion-pair HPLC coupled with ESI-MS in the negative mode. When comparing the two Isatis species, significant qualitative and quantitative differences in the glucosinolate patterns were observed. Differences among the various Isatis tinctoria accessions were much smaller. We studied the effects of repeated harvesting during the growth season on glucosinolate concentrations and found that repeated harvest did not have a major effect on glucosinolate concentrations of newly grown leaves. Glucosinolates could not be detected in woad leaves submitted to conventional drying. 相似文献
994.
Ariane Bialojan Julian Sohl Johanna Rausch Pamela Aranda Lopez Mark Denny Peter Langguth Ann‐Kathrin Hartmann Hideo Yagita Hans Christian Probst Hansjrg Schild Markus P. Radsak 《European journal of immunology》2019,49(11):2083-2094
Transcutaneous immunization (TCI) is a novel vaccination strategy that utilizes skin‐associated lymphatic tissue to induce immune responses. Employing T‐cell epitopes and the TLR7 agonist imiquimod onto intact skin mounts strong primary, but limited memory CTL responses. To overcome this limitation, we developed a novel imiquimod‐containing vaccination platform (IMI‐Sol) rendering superior primary CD8+ and CD4+ T‐cell responses. However, it has been unclear whether IMI‐Sol per se is restricted in terms of memory formation and tumor protection. In our present work, we demonstrate that the combined administration of IMI‐Sol and CD40 ligation unleashes fullblown specific T‐cell responses in the priming and memory phase, strongly enhancing antitumor protection in mice. Interestingly, these effects were entirely CD4+ T cell independent, bypassing the necessity of helper T cells. Moreover, blockade of CD70 in vivo abrogated the boosting effect of CD40 ligation, indicating that the adjuvant effect of CD40 in TCI is mediated via CD70 on professional APCs. Furthermore, this work highlights the so far underappreciated importance of the CD70/CD27 interaction as a promising adjuvant target in TCI. Summing up, we demonstrate that the novel formulation IMI‐Sol represents a powerful vaccination platform when applied in combination with sufficient adjuvant thereby overcoming current limitations of TCI. 相似文献
995.
Sabracos L Romanou S Dontas I Coulocheri S Ploumidou K Perrea D 《Medical hypotheses》2007,68(2):272-274
The use of povidone-iodine (PVP-I) is well known in clinical medical practice. In vitro studies of cell cultures infected by HIV and H5N1 virus have shown that PVP-I has an antiviral action, while the cell hosts were not affected and survived. It is therefore worth investigating whether PVP-I, diluted with Ringer's solution, may have a therapeutic effect by parenteral administration. Specifically, the question is whether small concentrations of intravenous PVP-I could be well tolerated by the human organism, and in addition, if it would be possible to detect a beneficial activity. Its intravenous use may have a potential value against infections (by microbes, viruses, fungi and parasites), as well as an anti-inflammatory activity, especially in cases where antibiotics are ineffective. It could be used as a blood disinfectant, for treating burns, for the prevention of cancer, for the therapy of H5N1 influenza after its mutation, and other potential applications. 相似文献
996.
Prevalence and course of sleep problems in childhood 总被引:1,自引:0,他引:1
Fricke-Oerkermann L Plück J Schredl M Heinz K Mitschke A Wiater A Lehmkuhl G 《Sleep》2007,30(10):1371-1377
STUDY OBJECTIVES: The Cologne Children's Sleep Study intended to provide information on prevalence and course of difficulties of initiating and maintaining sleep in childhood. DESIGN: Longitudinal study. SETTING: Children of the fourth grade of elementary schools in Cologne. PARTICIPANTS: 832 children and their parents; the mean age of the children was 9.4, 10.7, and 11.7 years at the 3 assessments. MEASUREMENTS AND RESULTS: Children and parents were surveyed using questionnaires 3 times on an annual basis. In self- and parental reports, about 30%-40% of the children of the longitudinal sample had problems falling asleep at the first assessment. One year later, about 30% to 40% of these children did not describe any difficulties initiating sleep, whereas about 60% did report continuing difficulties initiating sleep. Difficulties maintaining sleep are less common in childhood. The analysis of self- and parental reports revealed that in general children described significantly more difficulties initiating and maintaining sleep than their parents report. CONCLUSIONS: Difficulties initiating and maintaining sleep may be transient or persistent. In practice, children and adolescents should be included in the diagnostic and therapeutic process. 相似文献
997.
Spinal muscular atrophy: SMN2 pre-mRNA splicing corrected by a U7 snRNA derivative carrying a splicing enhancer sequence. 总被引:1,自引:0,他引:1
Julien Marquis Kathrin Meyer Larissa Angehrn Sacha S K?mpfer Barbara Rothen-Rutishauser Daniel Schümperli 《Molecular therapy》2007,15(8):1479-1486
Spinal muscular atrophy (SMA) is a lethal hereditary disease caused by homozygous deletion/inactivation of the survival of motoneuron 1 (SMN1) gene. The nearby SMN2 gene, despite its identical coding capacity, is only an incomplete substitute, because a single nucleotide difference impairs the inclusion of its seventh exon in the messenger RNA (mRNA). This splicing defect can be corrected (transiently) by specially designed oligonucleotides. Here we have developed a more permanent correction strategy based on bifunctional U7 small nuclear RNAs (snRNAs). These carry both an antisense sequence that allows specific binding to exon 7 and a splicing enhancer sequence that will improve the recognition of the targeted exon. When expression cassettes for these RNAs are stably introduced into cells, the U7 snRNAs become incorporated into small nuclear ribonucleoprotein (snRNP) particles that will induce a durable splicing correction. We have optimized this strategy to the point that virtually all SMN2 pre-mRNA becomes correctly spliced. In fibroblasts from an SMA patient, this approach induces a prolonged restoration of SMN protein and ensures its correct localization to discrete nuclear foci (gems). 相似文献
998.
Louise Kenny Karen Booth Kathrin Freystaetter Greta Wood Gary Reynolds Sridhar Rathinam Narain Moorjani 《The Journal of thoracic and cardiovascular surgery》2018,155(6):2526-2538.e2
Objective
The study aimed to assess targeted simulation courses, including live animal operating, as complementary training tools with regard to 2 key surgical skills in early cardiothoracic surgeon training.Methods
Twenty UK surgical trainees (equivalent to cardiothoracic surgery resident physicians in the United States) in their first year of residency training were evaluated. Assessment of skills in pulmonary wedge resection and cardiopulmonary bypass were undertaken before and after 2 boot camp-style courses, including live animal operating (boot camp 1 and boot camp 2). Resident performance was evaluated by surgical trainers using objective structured assessment of technical skills matrices. Trainers completed a survey on skill development and trainer confidence in the trainee precourse and postcourse.Results
Trainee assessment scores pre- and postcourses were analyzed using a 2-tailed Wilcoxon signed-rank test demonstrating a significant improvement in trainee performance in boot camp 1 in performing cardiopulmonary bypass (median score, 21 precourse and 28 postcourse; P = .001) and pulmonary wedge resection (median score, 25 precourse and 32 postcourse; P = .012), and in boot camp 2, in performing cardiopulmonary bypass (median score, 28 precourse and 30.5 postcourse; P = .018) and pulmonary wedge resection (median score, 31.5 precourse and 37 postcourse; P = .018). Trainers reported increased confidence and decision-making competency of residents and increased confidence of trainers to allow more participation in management. It was found that 83.3% of trainers would support trainee attendance in subsequent years.Conclusions
Live animal operating as a component of targeted cardiothoracic surgery skill training courses significantly improves technical skills, builds confidence of surgical trainers in resident physicians’ practice, and should be supported by the surgery community. 相似文献999.
Roger von Moos Florian Strasser Silke Gillessen Kathrin Zaugg 《Supportive care in cancer》2008,16(10):1105-1115
INTRODUCTION: One of the key targets for metastatic cancer cells is the skeleton. Once metastatic cells are established within the bone matrix, skeletal integrity becomes increasingly compromised. Bone lesions lead to various complications, including bone pain, fractures and spinal cord compression. MECHANISMS OF BONE PAIN: Bone pain is debilitating and affects quality of life of the patient. In addition, it increases the use of health care resources. Many patients with metastatic bone disease experience substantial bone pain despite state-of-the-art systemic analgesic treatment. Incident pain is the predominant pain syndrome. TREATMENT OPTIONS FOR BONE PAIN: Typically, this syndrome requires moderate baseline analgesia with increased on-demand doses. Other techniques for treating bone pain, including radiation therapy, neuraxial application of analgesics, nerve blocks and local stabilisation procedures, should be considered. In addition, therapy with bisphosphonates targeting bone-specific pain is an important strategy. This review discusses the various management options for bone pain arising from metastatic bone disease. 相似文献
1000.