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Tschiche A, Thota BNS, Neumann F, Schäfer A, Ma N, Haag R. Crosslinked Redox-Responsive Micelles Based on Lipoic Acid-Derived Amphiphiles for Enhanced siRNA Delivery. Macromol Biosci 2016; 16:811-23. [DOI: 10.1002/mabi.201500363] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/02/2015] [Indexed: 01/29/2023]
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Wagner O, Thota BNS, Schade B, Neumann F, Cuellar JL, Böttcher C, Haag R. Perfluoroalkylated linear polyglycerols and their supramolecular assemblies in aqueous solution. Polym Chem 2016. [DOI: 10.1039/c5py01928a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In this study, amphiphiles composed of linear polyglycerols (LPGs) with hydroxyl, methoxy, and ethoxy side groups and end capped with one or two perfluorooctyl chains (Rf8) have been designed to form supramolecular architectures.
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San Miguel J, Moreau P, Rajkumar V, Palumbo A, Facon T, Morgan G, Orlowski R, Cavo M, Einsele H, Neumann F, Labotka R, Lonial S, Richardson P. Four phase 3 studies of the oral proteasome inhibitor (PI) ixazomib for multiple myeloma in the newly-diagnosed, relapsed/refractory, and maintenance settings: TOURMALINE-MM1, -MM2, -MM3, and -MM4. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2015. [DOI: 10.1016/j.clml.2015.07.397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Huggins C, Pierce S, Neumann F, Peri F, Cockerill G, Pirianov G. A novel small mimetic molecule TLR4 antagonist (IAXO-102) modulates TLR4 proinflammatory signalling and inhibits aortic aneurysms development. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hellmund M, Achazi K, Neumann F, Thota BNS, Ma N, Haag R. Systematic adjustment of charge densities and size of polyglycerol amines reduces cytotoxic effects and enhances cellular uptake. Biomater Sci 2015; 3:1459-65. [DOI: 10.1039/c5bm00187k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Excessive cationic charge density of polyplexes during cellular uptake is still a major hurdle for gene delivery. A systematic study on cytotoxic effects caused by effective charge density related to size showed moderate loaded hPG amines to be higher potential as low/high ones.
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Kang Y, Ryoo B, Kim T, Lee K, Lim H, Lee S, Ikeda M, Okusaka T, Nadano S, Lin C, Poon T, Yen C, McCoon P, Neumann F, Vishwantahan K, DuPont R, Lyne P. 217 Results of a phase I, open-label, multicentre study to assess the safety, tolerability, pharmacokinetics and preliminary anti-tumour activity of AZD9150 in patients with advanced/metastatic hepatocellular carcinoma. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70343-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Stermann T, Neumann F, Osthold S, de Wendt C, Pujol A, Bosch F, Kragl M, Lammert E, Chadt A, Al-Hasani H. Funktionelle Analyse zur Rolle von Tbc1d1 in Langerhans'schen Inseln von Mäusen. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1374875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Goffeney J, Dumont P, Neumann F, Chelabi R, Comte A, Amsallem D, Altuzarra C. SFP P-072 – Encéphalopathie épileptique précoce: à propos de 3 cas. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)72042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Doležalová L, Volšanský P, Neumann F, Denemark L. [Severe acute pancreatitis - managing complications using a combination of minimally invasive approaches]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 2014; 93:216-219. [PMID: 24881479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this case report, we describe the case of a 30-year-old obese patient with severe acute pancreatitis complicated during hospitalization by the development of infected necrosis, a pseudocyst and an abscess. We demonstrate a possible solution to these complications using a combination of minimally invasive approaches. The contribution of this case report resides in that it presents a combination of the percutaneous approach and the endosonographic approach in the treatment of pancreatic necrosis. We believe that in such an extensive necrosis of the pancreas as is described in our case, this combined approach is optimal. The condition for implementing such a procedure is a well-staffed and technically equipped workplace.
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Madej T, Szlapka M, Neumann F, Plötze K, Matschke K, Waldow T. Retrosternal gentamicin-collagen sponge does not reduce the incidence of mediastinitis in cardiac surgery. J Cardiothorac Surg 2013. [PMCID: PMC3844596 DOI: 10.1186/1749-8090-8-s1-o116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Assmann G, Zinke S, Ney JT, Ong MF, Neumann F, Nold S, Pfreundschuh M. SAT0286 Serum Immunoglobulin Free Light Chain Assessment in Psoriatic Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Waldow T, Madej T, Neumann F, Plötze K, Matschke K. Retrosternal gentamicin-collagen sponge does not reduce the incidence of mediastinitis in cardiac surgery. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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van Diepen S, Newby L, Lopes R, Stebbins A, Hasselblad V, James S, Roe M, Ezekowitz J, Moliterno D, Neumann F, Reist C, Hochman J, Mahaffey K, Hamm C, Armstrong P, Granger C, Theroux P. 726 Acute Phase Inflammatory Biomarkers Add Little Predictive Value to Clinical Factors Plus NT-proBNP Among Patients With ST-Segment Elevation Myocardial Infarction: An Apex AMI Trial Substudy. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Dokas J, Chadt A, Neumann F, Joost HG, Al-Hasani H. Analyse von TBC1D1 im Substrat- und Energiestoffwechsel anhand eines adipösen Mausmodells. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Neumann F, Gompert M, Klein HW, Dokas J, Chadt A, Joost HG, Al-Hasani H. In vitro Charakterisierung des Rab-GTPase-aktivierenden Proteins TBC1D1. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Neumann F, Kramer M, Junkmann K. Tierexperimentelle Untersuchungen mit 17α-Aethinyl-19-nor-Testosteronacetat. Pharmacology 2010. [DOI: 10.1159/000135513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Michael M, Bruns I, Bölke E, Zohren F, Czibere A, Safaian NN, Neumann F, Haas R, Kobbe G, Fenk R. Bendamustine in patients with relapsed or refractory multiple myeloma. Eur J Med Res 2010; 15:13-9. [PMID: 20159666 PMCID: PMC3351842 DOI: 10.1186/2047-783x-15-1-13] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Objective In patients with multiple myeloma, bendamustine monotherapy is effective as 1st and 2nd line therapy. However, data for patients with advanced multiple myeloma is rare. Methods In this retrospective analysis we have identified 39 patients with relapsed or refractory multiple myeloma by means of case research, who have been treated at our institution with bendamustine as salvage therapy. After in median 2 lines of prior therapy (range:1-5) patients received in median 3 (range: 1-10) cycles of bendamustine. Bendamustine dosage was 80-150 mg on day 1+2 of a monthly cycle. Bendamustine was administered as monotherapy in 39% of patients, whereas 61% received concomitant steroids. Results Toxicity was mild to moderate. Response rates were as follows: 3% vgPR, 33% PR, 18% MR, 26% SD and 20% PD. The median event-free and overall survival were 7 and 17 months, respectively. Conclusions In conclusion, in patients with advanced multiple myeloma bendamustine is effective and associated with mild toxicity. Therefore, the role of bendamustine in patients with multiple myeloma should be investigated in further clinical trials.
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Dokas J, Chadt A, Neumann F, Joost HG, Al-Hasani H. Funktion von TBC1D1 im Substrat- und Energiestoffwechsel. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Neumann F, Kern J, Gompert M, Klein HW, Leicht K, De Simone A, Dokas J, Chadt A, Al-Hasani H. Ein in vitro Testverfahren zur Charakterisierung von TBC1D1. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mayinger B, Neumann F, Kastner C, Haider T, Schwab D. Hexaminolevulinate-induced fluorescence colonoscopy versus white light endoscopy for diagnosis of neoplastic lesions in the colon. Endoscopy 2010; 42:28-33. [PMID: 20066590 DOI: 10.1055/s-0029-1243804] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND STUDY AIMS To compare the rate of detection of colorectal neoplastic lesions using the selective photosensitizer precursor hexaminolevulinate (HAL) combined with a new fluorescence video endoscope system against that of standard white light endoscopy, and secondarily, to evaluate the safety profile of HAL-induced fluorescence colonoscopy. PATIENTS AND METHODS This prospective phase II clinical pilot study from two hospital study centers included 25 patients with known or highly suspected colorectal neoplasia. They underwent sensitization with locally applied 500 ml HAL enemas at a concentration of 1.6 mmol/L. At 60 minutes after enteral HAL administration, fluorescence imaging was done using a special light source capable of delivering either white light or blue excitation light. Red fluorescence induced by illumination with blue light was detected via a prototype fluorescence video colonoscope. Biopsies were taken from suspicious areas found with white or blue light. RESULTS Using histology as the gold standard, 55 / 93 of neoplastic lesions were detected with white light endoscopy, 53 / 93 with both white and blue light, 38 / 93 with blue light and second-pass white light, and 27/93 with blue light only. Of all neoplastic lesions, 91 / 93 revealed red fluorescence under fluorescence imaging ( P < 0.0001). Fluorescence mode showed 38.7 % (36 / 93) more neoplasms than did white light endoscopy. An isolated slight elevation of bilirubin, by a factor of 1.5, was noted after the administration of HAL. CONCLUSIONS Administration of HAL as enema induces selective lesion fluorescence and increases lesion detection rate in patients with colorectal neoplasia, especially of flat, nonvisible adenomas.
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Latzke D, Marhofer P, Zeitlinger M, Machata A, Neumann F, Lackner E, Kettner SC. Minimal local anaesthetic volumes for sciatic nerve block: evaluation of ED 99 in volunteers. Br J Anaesth 2009; 104:239-44. [PMID: 20034967 DOI: 10.1093/bja/aep368] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND This randomized, double-blinded volunteer study was designed to evaluate the ED(99) volume of local anaesthetic for sciatic nerve blocks using a step-up/step-down methodology. METHODS A maximum of 20 volunteers were included to receive an ultrasound-guided sciatic nerve block with mepivacaine 1.5% and a starting volume of 0.2 ml mm(-2) cross-sectional nerve area. In cases of a complete sensory block, the volume was reduced by 0.02 ml mm(-2) cross-sectional nerve area until the first block failed. Thereafter, the volume of local anaesthetic was increased by 0.02 ml mm(-2) cross-sectional nerve area. After three cycles of successful/failed blocks, the ED(99) volume of local anaesthetic could be calculated by a probability function. The influence of the volumes of local anaesthetics on sensory onset times and duration of sensory block was evaluated by linear regression. RESULTS The ED(99) volume of local anaesthetic for sciatic nerve block was calculated with 0.10 ml mm(-2) cross-sectional nerve area. The correlation between the volume of local anaesthetic and the sensory onset time was weak (r=0.14), whereas the correlation between the volume of local anaesthetic and the duration of sensory block was moderate (r=0.65). CONCLUSIONS This is the first study where an ED(99) volume of local anaesthetic for sciatic nerve block has been evaluated. The resulting local anaesthetic volume of 0.10 ml mm(-2) cross-sectional nerve area seems to have no impact on sensory onset time, whereas the duration of sensory block is shorter.
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Neumann F, Kalmus J. Cyproterone acetate in the treatment of sexual disorders: pharmacological base and clinical experience. EXPERIMENTAL AND CLINICAL ENDOCRINOLOGY 2009; 98:71-80. [PMID: 1838080 DOI: 10.1055/s-0029-1211103] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cyproterone acetate (CPA) has been discovered more than 25 years ago and it was the first antiandrogen suitable for clinical use. CPA inhibits the action of endogenous and exogenous androgens at all androgen target organs; these include the prostate, seminal vesicles, testes, and the vas deferens. However, this antiandrogen also antagonizes less sex-specific effects of androgens, for example ossification of the epiphyseal cartilage, sebaceous gland function and skin thickness. Indications for CPA: Prostate cancer, androgen induced disorders of the skin (acne, seborrhoea, hirsutism, alopecia), precocious puberty and sexual disorders in men. Concerning sexual deviations clinical trials started in 1966. CPA leads to loss of libido and the ability to achieve erection, followed by the inability to achieve orgasm, after about 14 days of treatment (100-200 mg daily orally or 300 mg weekly i.m.). These effects are reversed in the same order as the onset. About 75 to 80% of patients respond to this therapy. CPA is generally well tolerated. Tiredness, lack of drive, listlessness and depressive moods have been reported as non-specific side-effects. Slight gynecomastia occurs in about 20% of patients. There are no good alternatives in this indication. Pure antiandrogens are unsuitable, because these are unable to inhibit libido sufficiently. Tranquilizers are not very effective, high doses of estrogens are associated with severe (cardiovascular) side effects. Orchidectomy is an irreversible intervention, LHRH analogues are associated with hot flushes and the initial increase in testosterone (flare phenomenon).
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Neumann F. The antiandrogen cyproterone acetate: discovery, chemistry, basic pharmacology, clinical use and tool in basic research. EXPERIMENTAL AND CLINICAL ENDOCRINOLOGY 2009; 102:1-32. [PMID: 8005205 DOI: 10.1055/s-0029-1211261] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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