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排序方式: 共有46条查询结果,搜索用时 15 毫秒
1.
Prof. Dr. R. Rosenbrock 《Pr?vention und Gesundheitsf?rderung》2006,1(1):6-11
In 2005 an attempt to pass a federal law for strengthening primary prevention in Germany failed. State regulations to strengthen primary prevention have to be measured by their ability to advance the quality and quantity of primary prevention and to promote strategies and activities which meet the challenge of predominant chronic degenerative diseases and inequalities in health. This contribution analyzes strengths and weaknesses of the failed bill and lists criteria to assess the quality of the new draft. 相似文献
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Hagemeyer CE Rosenbrock H Singec I Knoth R Volk B 《Journal of neuroscience research》2000,60(1):106-115
Steroid hormones influence the development of undifferentiated brain during ontogenesis. In the present study we investigated the metabolic pathway of testosterone in immortalized embryonic and postnatal hippocampal neurons from C57BL/6 mice. Both cell lines are capable of metabolizing testosterone to 6alpha-hydroxytestosterone, 6beta-hydroxytestosterone and androstenedione. The formation was found to correlate with protein concentration and time of incubation. These linearities were significant for all metabolites except androstenedione that was the main metabolite in embryonic hippocampal neurons and nearly absent in postnatal neurons. Moreover, only embryonic cells react to testosterone with a decrease of beta-tubulin expression, that was a typical effect indicating induced neuronal maturation. Application of androstenedione caused the same decrease of beta-tubulin expression as testosterone did before. Our results of hippocampal testosterone metabolism in vitro confirm that not only estradiol and 5alpha-dihydrotestosterone could impact neural tissue but also androstenedione is a powerful metabolite involved in prenatal neuronal differentiation. 相似文献
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C.?BauesEmail author R.?Semrau U.?S.?Gaipl P.?J.?Br?ckelmann J.?Rosenbrock A.?Engert S.?Marnitz 《Strahlentherapie und Onkologie》2017,193(2):95-99
Background
Patients with classical Hodgkin’s lymphoma (cHL) have a good prognosis even in advanced stages. However, combined chemo- and radiotherapy, as the standard of care, is also associated with treatment-related toxicities such as organ damage, secondary neoplasias, infertility, or fatigue and long-term fatigue. Many patients suffer from this burden although their cHL was cured. Therefore, the efficacy of immune checkpoint inhibitors like anti-PD1/PD-L1 antibodies in the treatment of solid cancers and also in HL offers new options. A remarkable and durable response rate with a favorable toxicity profile was observed in heavily pretreated cHL patients.Methods
Planning to perform prospective randomized clinical trials in the content of radio-immune treatment in patients with Hodgkin’s lymphoma (HL), we transferred the results of preliminary clinical studies and basic research in clinical relevant study concepts.Results
Based on these promising early phase trial data, the German Hodgkin Study Group (GHSG) will investigate innovative treatment regimens in upcoming phase II trials.Conclusion
The therapeutic efficacy and potential synergies of anti-PD1 antibodies in combination with chemo- or radiotherapy will be investigated in various settings of HL.7.
Prophylaxis of contrast material-induced nephropathy in patients in intensive care: acetylcysteine, theophylline, or both? A randomized study 总被引:4,自引:0,他引:4
Huber W Eckel F Hennig M Rosenbrock H Wacker A Saur D Sennefelder A Hennico R Schenk C Meining A Schmelz R Fritsch R Weiss W Hamar P Heemann U Schmid RM 《Radiology》2006,239(3):793-804
PURPOSE: To prospectively compare the protective effect of acetylcysteine, theophylline, and both agents combined in patients who are admitted to the intensive care unit with at least one risk factor for contrast material-induced nephropathy and who receive at least 100 mL of iodinated contrast medium. MATERIALS AND METHODS: Institutional ethics review board approval and informed consent were obtained. A total of 91 patients (mean age, 58.5 years+/-14.8 [standard deviation]; 31 women, 60 men; 150 examinations) were admitted to the intensive care unit with at least one risk factor for contrast-induced nephropathy and received either (a) 200 mg theophylline 30 minutes before contrast medium administration (group T), (b) 600 mg acetylcysteine twice daily on the day of and (if possible) the day before the examination (group A), or (c) both agents combined (group AT). The primary endpoint for this study was the incidence of contrast-induced nephropathy (chi2 test). RESULTS: Groups T, A, and AT were comparable with regard to baseline creatinine levels and the amount of contrast medium administered. The incidence of contrast-induced nephropathy in groups T, A, and AT was 2%, 12%, and 4%, respectively, and was significantly lower in group T than in group A (P=.047). There was no significant difference in the incidence of contrast-induced nephropathy between groups A and AT (P=.148) or between groups T and AT (P=.53). For group A, serum creatinine did not change after 12, 24, or 48 hours compared with baseline. Creatinine levels in group T decreased 12 hours (1.19 mg/dL+/-0.58; P=.008) and 48 hours (1.16 mg/dL+/-0.55; P=.034) after contrast material injection compared with baseline (1.25 mg/dL+/-0.61). In group AT, creatinine significantly decreased 24 hours (1.21 mg/dL+/-0.74; P=.003) and 48 hours (1.17 mg/dL+/-0.69; P<.001) after contrast material injection compared with baseline (1.28 mg/dL+/-0.74). Group A had significantly higher maximal increases in creatinine than groups T and AT (P=.014). CONCLUSION: For prophylaxis of contrast-induced nephropathy in patients who are admitted to the intensive care unit and who receive 100 mL or more of contrast medium, theophylline is superior to acetylcysteine. 相似文献
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Inhibition of PDE2A,but not PDE9A,modulates presynaptic short‐term plasticity measured by paired‐pulse facilitation in the CA1 region of the hippocampus
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Diego Fernández‐Fernández Holger Rosenbrock Katja S. Kroker 《Synapse (New York, N.Y.)》2015,69(10):484-496
Phosphodiesterase (PDE) inhibitors are currently considered promising therapeutic targets for treatment of cognitive impairment in diseases such as Schizophrenia and Alzheimer's disease. Inhibitors of PDE2A and PDE9A have emerged as potential candidates shown to improve synaptic plasticity and memory function in animals. However, the functional relevance of their putative different localization in the neuron is not understood. Thus, this study aims at elucidating potential presynaptic effects of PDE2A inhibition in comparison to the inhibition of PDE9A. For this purpose, we used paired‐pulse facilitation (PPF), a model of short‐term synaptic plasticity related to presynaptic function. First, we performed a series of experiments to validate the model in acute rat hippocampal slices using several reference substances including calcium channel blockers, glutamatergic receptor antagonists, and GPCR agonists. Second, we analysed the effect of PDE2A and PDE9A inhibition and their role regulating the influence that the second messengers cAMP and cGMP exert on basal transmission. Our results show that the interplay between the adenylyl cyclase activator forskolin, the soluble guanylyl cyclase activator BAY 41‐8543 and the PDE2A inhibitor PF‐999 reveals a primarily presynaptic mechanism of action of PDE2A inhibition. On the contrary, inhibition of PDE9A did not alter PPF under similar conditions. In conclusion, these data provide new evidence supporting a role of PDE2A modulating short‐term synaptic plasticity. Moreover, this function of PDE2A is suggested to rely on an active modulation of the cAMP hydrolysis as a response to changes in cGMP levels at the presynaptic level. Synapse 69:484–496, 2015 . © 2015 Wiley Periodicals, Inc. 相似文献
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Rolf Rosenbrock 《Zeitschrift fur Gesundheitswissenschaften》1994,2(3):233-244
Policy-deficits are the most important factor contributing to the ongoing spread, and associated dynamics, of the HIV/AIDS pandemic and its numerous sub-epidemics around the world. Drawing upon ten years experience, observation, and evaluation of AIDS policies, both the general design and core elements of an effective AIDS policy, as well as typical policy impediments, are outlined. Successful AIDS policies follow a strategy of social learning by inclusion and cooperation, are decentralized, and incorporate the motivation and competencies of those affected. Key elements of such a strategy are timely risk perception and assessment; priority to primary prevention; and the formulation of a coherent policy which is integrated into the more general public health programs 相似文献
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Predominantly neuronal expression of cytochrome P450 isoforms CYP3A11 and CYP3A13 in mouse brain 总被引:2,自引:0,他引:2
Despite the very small amounts of cytochrome P450 enzymes expressed in different areas and cell populations of the brain as compared with the liver, there is significant evidence for their specific involvement in brain development, function, and plasticity. Nevertheless, the current discussion about occurrence and importance of cerebral cytochrome P450 isoforms is determined by controversial interpretations of their function in general and with respect to single isoforms. Continuing a series of publications about brain P450 isoforms, we now present evidence for the expression of cytochrome P450 3A11 and 3A13 in mouse brain. Immunocytochemical and non-radioactive in situ hybridization studies revealed identical distribution of their proteins and mRNAs throughout the brain especially in neuronal populations, and to some extent in astrocytes. The cerebral expression of these P450 isoforms was confirmed by Western blot and RNAse protection assay analysis. The well-known testosterone-metabolizing capacity and the inducibility of cytochrome P450 3a isoforms by xenobiotics as well as their presence in steroid hormone-sensitive areas and neurons (e.g. hippocampus) clarify the significance of these isoforms for impairment of steroid hormone actions by P450-inducing environmental substances. Therefore, investigation of inducible cerebral P450 isoforms which are able to metabolize xenobiotics as well as steroid hormones might help us to understand neuroendocrine regulation of brain's plasticity. 相似文献