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Fekete S, Egberts K, Preissler T, Wewetzer C, Mehler-Wex C, Romanos M, Gerlach M. Therapeutic Drug Monitoring (TDM) of children and adolescents with tic disorders treated with tiapride. PHARMACOPSYCHIATRY 2017. [DOI: 10.1055/s-0037-1606421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gerlach M, Sanner B. [Guidelines in Practice: The New S3 Guideline "Sleeping Disorders - Sleep-Related Abnormal Breathing"]. Pneumologie 2017; 71:508-513. [PMID: 28558398 DOI: 10.1055/s-0043-106349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Sleep related breathing disorders include central sleep apnea (CSA), obstructive sleep apnea (OSA), sleep-related hypoventilation, and sleep-related hypoxia. These disorders are frequent and growing in clinical relevance. The related chapter of the S3 guideline "Non-restorative sleep/Sleep disorders", published by the German Sleep Society (DGSM), has recently been updated in November 2016. Epidemiology, diagnostics, therapeutic procedures, and classification of sleep related disorders have been revised. Concerning epidemiology, a considerably higher mortality rate among pregnant women with OSA has been emphasized. With regards to diagnostics, the authors point out that respiratory polygraphy may be sufficient in diagnosing OSA, if a typical clinical condition is given. For CSA, recommendations were changed to diagnose CSA with low apnea rates present. Significant changes for treating CSA in patients with left ventricular dysfunction have been introduced. In addition, there is now to be differentiated between sleep-related hypoventilation and sleep-related hypoxaemia. Obesity hypoventilation syndrome is discussed in more detail. This article sums up and comments on the published changes.
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Gerlach M, Proksch AL, Unterer S, Speck S, Truyen U, Hartmann K. Efficacy of feline anti-parvovirus antibodies in the treatment of canine parvovirus infection. J Small Anim Pract 2017; 58:408-415. [PMID: 28369886 DOI: 10.1111/jsap.12676] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 01/17/2017] [Accepted: 01/20/2017] [Indexed: 12/01/2022]
Abstract
OBJECTIVE This prospective, randomised, placebo-controlled, double-blinded study aimed to evaluate efficacy of commercially available feline anti-parvovirus antibodies in dogs with canine parvovirus infection. METHODS First, cross-protection of feline panleukopenia virus antibodies against canine parvovirus was evaluated in vitro. In the subsequent prospective clinical trial, 31 dogs with clinical signs of canine parvovirus infection and a positive faecal canine parvovirus polymerase chain reaction were randomly assigned to a group receiving feline panleukopenia virus antibodies (n=15) or placebo (n=16). All dogs received additional routine treatment. Clinical signs, blood parameters, time to clinical recovery and mortality were compared between the groups. Serum antibody titres and quantitative faecal polymerase chain reaction were compared on days 0, 3, 7, and 14. RESULTS In vitro, canine parvovirus was fully neutralised by feline panleukopenia virus antibodies. There were no detected significant differences in clinical signs, time to clinical recovery, blood parameters, mortality, faecal virus load, or viral shedding between groups. Dogs in the placebo group showed a significant increase of serum antibody titres and a significant decrease of faecal virus load between day 14 and day 0, which was not detectable in dogs treated with feline panleukopenia virus antibodies. CLINICAL SIGNIFICANCE No significant beneficial effect of passively transferred feline anti-parvovirus antibodies in the used dosage regimen on the treatment of canine parvovirus infection was demonstrated.
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Gerlach M, Abdul Wajid D, Hilfert L, Edelmann FT, Seidel-Morgenstern A, Hamel C. Impact of minor amounts of hydroperoxides on rhodium-catalyzed hydroformylation of long-chain olefins. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00244k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The influence of varying hydroperoxide concentrations in olefin feeds was systematically investigated in rhodium-catalyzed hydroformylation using a diphosphite ligand.
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Gerlach M, Kohls E, Lemberg M, Hamel C, Sadowski G, Seidel-Morgenstern A, Stein M. Vorhersage des Lösungsmitteleinflusses auf das Reaktionsgleichgewicht der Hydroformylierung von 1-Dodecen. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Romanos M, Coghill D, Gerlach M, Becker K, Holtmann M, Döpfner M, Banaschewski T. Check and Double Check – the Cochrane review by Storebo et al. (2015) is indeed flawed. ZEITSCHRIFT FUR KINDER-UND JUGENDPSYCHIATRIE UND PSYCHOTHERAPIE 2016; 44:336-337. [DOI: 10.1024/1422-4917/a000473] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Leitão JC, Miotto JM, Gerlach M, Altmann EG. Is this scaling nonlinear? ROYAL SOCIETY OPEN SCIENCE 2016; 3:150649. [PMID: 27493764 PMCID: PMC4968456 DOI: 10.1098/rsos.150649] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 06/15/2016] [Indexed: 05/12/2023]
Abstract
One of the most celebrated findings in complex systems in the last decade is that different indexes y (e.g. patents) scale nonlinearly with the population x of the cities in which they appear, i.e. y∼x (β) ,β≠1. More recently, the generality of this finding has been questioned in studies that used new databases and different definitions of city boundaries. In this paper, we investigate the existence of nonlinear scaling, using a probabilistic framework in which fluctuations are accounted for explicitly. In particular, we show that this allows not only to (i) estimate β and confidence intervals, but also to (ii) quantify the evidence in favour of β≠1 and (iii) test the hypothesis that the observations are compatible with the nonlinear scaling. We employ this framework to compare five different models to 15 different datasets and we find that the answers to points (i)-(iii) crucially depend on the fluctuations contained in the data, on how they are modelled, and on the fact that the city sizes are heavy-tailed distributed.
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Banaschewski T, Gerlach M, Becker K, Holtmann M, Döpfner M, Romanos M. Trust, but verify. The errors and misinterpretations in the Cochrane analysis by O. J. Storebo and colleagues on the efficacy and safety of methylphenidate for the treatment of children and adolescents with ADHD. ZEITSCHRIFT FUR KINDER-UND JUGENDPSYCHIATRIE UND PSYCHOTHERAPIE 2016; 44:307-14. [PMID: 27270192 DOI: 10.1024/1422-4917/a000433] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Objective A recent Cochrane review published by O. J. Storebo and colleagues (2015) raised substantial doubts about the benefit from stimulant medication with methylphenidate in the treatment of childhood ADHD due to the overall poor quality of studies. The systematic review thus contradicts all previous reviews and meta-analyses. Method We here detail various examples of errors, inconsistencies, and misinterpretations in the review which led to false results and inadequate conclusions. Results We demonstrate that the study selection is flawed and undertaken without sufficient scientific justification resulting in an underestimation of effect sizes, which, furthermore, are inadmissibly clinically interpreted. The methodology of the assessment of bias and quality is not objective and cannot be substantiated by the data. Conclusions Cochrane reviews lay claim to a high scientific quality and substantial relevance for evidence-based clinical decisions. The systematic review by Storebo and colleagues (2015) illustrates that, despite adhering to strict standards and high-quality protocols, even Cochrane works should be critically read and verified, sometimes with surprising results.
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Egberts K, Dang SY, Fekete S, Wohkittel C, Albantakis L, Mehler-Wex M, Plener P, Wewetzer C, Romanos M, Gerlach M. Therapeutic Drug Monitoring in Children and Adolescents Treated with Second-Generation Antipsychotics in Daily Clinical Practice. PHARMACOPSYCHIATRY 2016. [DOI: 10.1055/s-0036-1582027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Huschmann FU, Gerlach M, Foerster R, Heine A, Hellmig M, Klebe G, Linnik J, Malecki PH, Metz A, Radeva N, Schiebel J, Sparta K, Steffien M, Uehlein M, Wilk P, Weiss MS, Mueller U. Crystallographic fragment-screening – results from the HZB-Marburg collaboration. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315099386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Egberts K, Dang SY, Plener P, Romanos M, Gerlach M. Pharmacovigilance in children and adolescents with psychiatric disorders. PHARMACOPSYCHIATRY 2014. [DOI: 10.1055/s-0034-1386812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gerlach M. News from the field of pharmacovigilance. PHARMACOPSYCHIATRY 2014. [DOI: 10.1055/s-0034-1386810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Egberts K, Preuss A, Wewetzer C, Unterecker S, Plener P, Gerlach M. Relation between dosage, serum concentration and therapeutic response of risperidone in children and adolescents with schizophrenic psychosis: data from a routine TDM-Service. PHARMACOPSYCHIATRY 2014. [DOI: 10.1055/s-0034-1386832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Dang SY, Jeutter V, Gerlach M, Romanos M, Taurines R, Egberts K. Aripiprazole induced extrapyramidal symptoms in two adolescents. PHARMACOPSYCHIATRY 2014. [DOI: 10.1055/s-0034-1386833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Plum S, Helling S, Theiss C, Leite REP, May C, Jacob-Filho W, Eisenacher M, Kuhlmann K, Meyer HE, Riederer P, Grinberg LT, Gerlach M, Marcus K. Combined enrichment of neuromelanin granules and synaptosomes from human substantia nigra pars compacta tissue for proteomic analysis. J Proteomics 2013; 94:202-206. [PMID: 23917253 DOI: 10.1016/j.jprot.2013.07.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 06/26/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
Abstract
UNLABELLED This article gives a detailed description of a protocol using density gradient centrifugation for the enrichment of neuromelanin granules and synaptosomes from low amounts (≥0.15g) of human substantia nigra pars compacta tissue. This has a great advantage compared to already existing methods as it allows for the first time (i) a combined enrichment of neuromelanin granules and synaptosomes and (ii) just minimal amounts of tissue necessary to enable donor specific analysis. Individual specimens were classified as control or diseased according to clinical evaluation and neuropathological examination. For the enrichment of synaptosomes and neuromelanin granules from the same tissue sample density gradient centrifugations using Percoll® and Iodixanol were performed. The purity of resulting fractions was checked by transmission electron microscopy. We were able to establish a reproducible and easy to handle protocol combining two different density gradient centrifugations: using an Iodixanol gradient neuromelanin granules were enriched and in parallel, from the same sample, a fraction of synaptosomes with high purity using a Percoll® gradient was obtained. Our subfractionation strategy will enable a subsequent in depth proteomic characterization of neurodegenerative processes in the substantia nigra pars compacta in patients with Parkinson's disease and dementia with Lewy bodies compared to appropriate controls. BIOLOGICAL SIGNIFICANCE Key features of Parkinson's disease are the degeneration of dopaminergic neurons in the substantia nigra pars compacta, an associated loss of the brain pigment neuromelanin and a resulting impairment of the neuronal network. The accumulation of iron binding neuromelanin granules is age- and disease-dependent and disease specific alterations could affect the neuronal iron homeostasis leading to oxidative stress induced cell death. The focus of the described method is the analysis of neuromelanin granules as well as axonal cell-endings of nerve cells (synaptosomes) of individual donors (control and diseased). It is the basis for the identification of disease-relevant changes in the iron homeostasis and the generation of new insight into altered protein compositions or regulations which might lead to disturbed communications between nerve cells resulting in pathogenic processes.
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Buhr H, Büermann L, Gerlach M, Krumrey M, Rabus H. Measurement of the mass energy-absorption coefficient of air for x-rays in the range from 3 to 60 keV. Phys Med Biol 2012. [DOI: 10.1088/0031-9155/57/24/8231] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Aicher B, Schuster T, Blumenstein L, Schmidt P, Irschik H, Jansen R, Mueller R, Guenther E, Gerlach M, Teifel M. 330 Highly Potent Cytotoxic Conjugates of Disorazol Z Linked to a LHRH Receptor Targeting Peptide Interfere with Cell Cycle Progression in Human Cancer Cell Lines and Suppress Tumor Growth in a LHRH Receptor Positive Ovarian Cancer Xenograft Model. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72128-7] [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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Kuhn W, Müller T, Büttner T, Gerlach M. Antioxidative properties of aspirin: dose dependence and clinical implications. Eur J Neurol 2012; 3:275-7. [PMID: 21284783 DOI: 10.1111/j.1468-1331.1996.tb00436.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Foley P, Gerlach M, Youdim MB, Riederer P. MAO-B inhibitors: multiple roles in the therapy of neurodegenerative disorders? Parkinsonism Relat Disord 2012; 6:25-47. [PMID: 18591148 DOI: 10.1016/s1353-8020(99)00043-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/1998] [Revised: 06/29/1999] [Accepted: 06/29/1999] [Indexed: 11/16/2022]
Abstract
Monoamine oxidases play a central role in catecholamine catabolism in the central nervous system. The biochemical and pharmacological properties of inhibitors of the monoamine oxidase type B are reviewed. The evidence for biochemical activities distinct from their ability to inhibit MAO-B is discussed, including possible antioxidative and antiapoptotic activities of these agents. The significance of these properties for the pharmacological management of Parkinson's disease and the evidence for a neuroprotective effect of one such agent (selegiline) is also discussed.
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Hansen D, Taurines R, Wewetzer C, Pfuhlmann B, Plener P, Mehler-Wex C, Gerlach M, Egberts K. Therapeutic drug monitoring (TDM) in children and adolescents treated with aripiprazole. PHARMACOPSYCHIATRY 2012. [DOI: 10.1055/s-0032-1326751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kulpok C, Taurines R, Wewetzer C, Pfuhlmann B, Plener P, Mehler-Wex C, Gerlach M, Egberts K. Relation between dosage, serum concentration and therapeutic response of quetiapine in children and adolescents with different psychiatric disorders in clinical practice. PHARMACOPSYCHIATRY 2012. [DOI: 10.1055/s-0032-1326756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gerlach M, Baas H, Jost W, Klucken J, Riederer P. Nutzen von Pharmakokinetik- und Pharmakogenetik-Wissen für die Parkinson-Therapie. AKTUELLE NEUROLOGIE 2011. [DOI: 10.1055/s-0032-1304733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Koelch M, Pfalzer AK, Kliegl K, Rothenhöfer S, Ludolph AG, Fegert JM, Burger R, Mehler-Wex C, Stingl J, Taurines R, Egberts K, Gerlach M. Therapeutic drug monitoring of children and adolescents treated with fluoxetine. PHARMACOPSYCHIATRY 2011; 45:72-6. [PMID: 22086744 DOI: 10.1055/s-0031-1291294] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
INTRODUCTION Information about therapeutic serum levels of fluoxetine (FLX) and its major metabolite norfluoxetine (NORFLX) in children and adolescents is scarce. METHODS Therapeutic drug monitoring (TDM) of FLX was routinely performed in 71 subjects treated for a major depressive disorder (MDD) (10-60 mg/d FLX, median: 20 mg/d). Correlations between serum concentration and dosage, age, gender, smoking habits and adverse events were analysed. RESULTS Serum concentrations of the active moiety (FLX + NORFLX) ranged from 21 to 613 ng/mL (mean concentration of 213 ± 118 ng/mL, median: 185 ng/mL). High inter-individual variability in serum concentrations of the active moiety of FLX at each dosage level was observed and no relationship between serum concentration and clinical outcome was found. Apart from smoking, none of the factors tested had a significant eff ect on the serum concentration. DISCUSSION It was shown that serum concentrations of the active moiety of FLX in children and adolescents seem to be similar to those in adults, with a high level of inter-individual variation. The proportion of patients who showed benefits from treatment with a dose of 20 mg/d FLX was high.
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Romanos M, Buske-Kirschbaum A, Fölster-Holst R, Gerlach M, Weidinger S, Schmitt J. Itches and scratches – is there a link between eczema, ADHD, sleep disruption and food hypersensitivity? Allergy 2011; 66:1407-9. [PMID: 21895691 DOI: 10.1111/j.1398-9995.2011.02705.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Guenther M, Rauwolf T, Brüggemann B, Gerlach M, Wässnig NK, Christoph M, Braun MU, Strasser RH, Wunderlich C. Pre-hospital discharge testing after implantable cardioverter defibrillator implantation: A measure of safety or out of date? A retrospective analysis of 975 patients. Europace 2011; 14:217-23. [PMID: 21969525 DOI: 10.1093/europace/eur306] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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