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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M, Kaempf R. Improved method robustness and ruggedness in liquid chromatography-mass spectrometry by increasing the acid content of the mobile phase. J Chromatogr A 2024; 1717:464694. [PMID: 38306921 DOI: 10.1016/j.chroma.2024.464694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/04/2024]
Abstract
A routine multiresidue method developed for the detection and quantification of veterinary drug residues in animal-based food was used to analyze sheep (ovine) liver. Unlike when working with previously validated matrices (e.g., bovine liver), some of the analytes of interest chromatographed in the form of split- or even fully baseline separated peaks. In other cases a significantly longer retention times (tR) was observed. A detailed investigation led to the elucidation of taurocholic acid as the causative agent. This compound is present in sheep liver at significantly higher concentrations than in most other animal tissues. Taurocholic acid is a zwitterionic compound and likely acts as an ion pairing agent, which modifies the selectivity of the stationary phase in a highly spatial and dynamic way. Injecting smaller volumes of matrix extract or the use of a significantly higher formic acid concentration in the mobile phase reduced or even completely eliminated the peak splitting. A more detailed examination led to the observation that the problem is not restricted to this particular matrix and extraction procedure or the used stationary phase. In fact, a higher formic acid concentration (e.g., 1.0 % versus 0.1 %) significantly improves the peak shape of many analytes present in fortified matrix samples as well as in pure standard solutions. In addition, analytical column aging was observed as being slower with a higher formic acid concentration. Finally the peak shape of analytes interacting with the metallic parts along the flow path of the liquid chromatograph was also significantly improved. Use of 0.1 % acid in mobile phases is often taken for granted in LC-MS. Regardless of the stationary phase, a higher ionic strength better stabilizes the pH and reduces unwanted interactions, which ultimately improves the method robustness. Flow injection experiments often show that 0.1 % acid concentrations produce the highest analyte signals. Yet, the use of 1 % acid in the mobile phase often leads to narrower and therefore taller chromatographic peaks, which may lead to lower detection limits for many analytes and to an improved separation efficiency.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - R Kaempf
- Official Food Control Authority of the Canton of Zurich, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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Welponer T, Weber DD, Trattner L, Tockner B, Aminzadeh-Gohari S, Leb-Reichl V, Kaufmann A, Zauner R, Wimmer M, Wally V, Felder TK, Strunk D, Koller U, Bauer JW, Kofler B, Guttmann-Gruber C, Piñon Hofbauer J. Metformin shows anti-neoplastic properties by inhibition of oxidative phosphorylation and glycolysis in epidermolysis bullosa-associated aggressive cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2024; 38:112-123. [PMID: 37669776 DOI: 10.1111/jdv.19488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/18/2023] [Indexed: 09/07/2023]
Abstract
BACKGROUND While most cutaneous squamous cell carcinomas (cSCCs) are treatable, certain high-risk cSCCs, such as those in recessive dystrophic epidermolysis bullosa (RDEB) patients, are particularly aggressive. Owing to repeated wounding, inflammation and unproductive healing, RDEB patients have a 68% cumulative risk of developing life-threatening cSCCs by the age of 35, and a 70% risk of death by the age of 45. Despite aggressive treatment, cSCC represents the leading cause of premature mortality in these patients, highlighting an unmet clinical need. Increasing evidence points to a role of altered metabolism in the initiation and maintenance of cSCC, making metabolism a potential therapeutic target. OBJECTIVES We sought to determine the feasibility of targeting tumour cell energetics as a strategy to selectively hinder the growth advantage of aggressive cSCC. METHODS We evaluated the cell energetics profiles of RDEB-SCC cells by analysing available gene expression data against multiple gene signatures and single-gene targets linked to metabolic reprogramming. Additionally, we employed real-time metabolic profiling to measure glycolysis and respiration in these cells. Furthermore, we investigated the anti-neoplastic properties of the metformin against human and murine high-risk cSCCs in vitro and in vivo. RESULTS Gene expression analyses highlighted a divergence in cell energetics profiles between RDEB-SCC and non-malignant RDEB keratinocytes, with tumour cells demonstrating enhanced respiration and glycolysis scores. Real-time metabolic profiling supported these data and additionally highlighted a metabolic plasticity of RDEB-SCC cells. Against this background, metformin exerted an anti-neoplastic potential by hampering both respiration and glycolysis, and by inhibiting proliferation in vitro. Metformin treatment in an analogous model of fast-growing murine cSCC resulted in delayed tumour onset and slower tumour growth, translating to a 29% increase in median overall survival. CONCLUSIONS Our data indicate that metformin exerts anti-neoplastic properties in aggressive cSCCs that exhibit high-risk features by interfering with respiration and glycolytic processes.
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Affiliation(s)
- T Welponer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - D D Weber
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - L Trattner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - B Tockner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - S Aminzadeh-Gohari
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - V Leb-Reichl
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - A Kaufmann
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - R Zauner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - M Wimmer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - V Wally
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - T K Felder
- Department of Laboratory Medicine, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - D Strunk
- Cell Therapy Institute, Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - U Koller
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - J W Bauer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - B Kofler
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - C Guttmann-Gruber
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - J Piñon Hofbauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
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Hofer A, Biedermann F, Kaufmann A, Kemmler G, Pfaffenberger NM, Yalcin-Siedentopf N. Self-esteem in stabilized individuals with chronic schizophrenia: association with residual symptoms and cognitive functioning. Eur Arch Psychiatry Clin Neurosci 2023; 273:1737-1746. [PMID: 36602648 PMCID: PMC10713693 DOI: 10.1007/s00406-022-01538-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023]
Abstract
Low self-esteem is regarded as a barrier to recovery from schizophrenia and the identification of factors affecting this psychological characteristic may help to implement effective therapeutic interventions. To this end, the present study aimed to assess whether residual symptoms of the disorder and performance on a comprehensive neuropsychological test battery might differently impact self-esteem among 70 stabilized outpatients with chronic schizophrenia from public outpatient mental health services. Self-esteem inter-correlated with the severity of overall symptomatology, affective and negative symptoms, with premorbid intelligence, and with performance in the domains of verbal learning and memory, visual memory, working memory, and verbal fluency. Residual affective symptoms, premorbid intelligence, and female sex predicted poorer self-esteem in multiple linear regression analysis. The findings of this study implicate that next to psychological interventions therapeutic strategies that specifically target affective symptoms of schizophrenia may have a beneficial impact on patients' self-esteem.
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Affiliation(s)
- Alex Hofer
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria.
| | - Falko Biedermann
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Alexandra Kaufmann
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Georg Kemmler
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Nicole M Pfaffenberger
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Nursen Yalcin-Siedentopf
- Division of Psychiatry I, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Medical University Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
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Kaufmann A, Arrizabalaga-Larrañaga A, Blokland M, Sterk S. Potential and limitation of retrospective HRMS based data analysis: “Have meat-producing animals been exposed to illegal growth promotors such as SARMs?”. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Abdunnur R, Kaufmann A. [Künstliche Harnsphincter zur Behandlung von Stress-Harninkontinenz - eine oft nicht ausgelastete Behandlungsoption in Deutschland]. Urologe A 2021; 60:696-705. [PMID: 34097109 DOI: 10.1007/s00120-021-01544-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Abstract
ABSTRAKT Harninkontinenz ist in Deutschland weit verbreitet und betrifft Millionen von Frauen und Männern. Vor allem Männer, die postoperativ dauerhaft inkontinent sind, werden hierzulande trotz der ausreichenden Verfügbarkeit chirurgischer Optionen unterbehandelt. Der künstliche Schließmuskel wird seit Jahrzehnten erfolgreich zur Behandlung angeborener und erworbener Stress-Harninkontinenz bei Männern und Frauen sowie neurogener Harninkontinenz eingesetzt und wird in Form neuer Modelle weiterentwickelt. Aufgrund der guten Ergebnisse, Es gilt jetzt als Standardtherapie für Männer mit anhaltender, mittelschwerer bis schwerer Harninkontinenz. Die operationstechnische Technik ist anspruchsvoll, kann aber erlernt werden. Die meisten Komplikationen können in erfahrenen Händen deutlich reduziert werden. Patientenzufriedenheit mit künstlichen Harnsphinctern (AUS) ist hoch und korreliert mit der Kontinenzrate und nicht mit der relativ hohen Revisionsrate, weshalb diese Behandlungsoption in Deutschland zunehmend mehr Patienten mit mittelschwerer bis schwerer Harninkontinenz angeboten werden sollte. Urologen in der allgemeinen Praxis spielen in diesem Zusammenhang eine zentrale Rolle.
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Affiliation(s)
- R Abdunnur
- Klinik für Urologie und Kinderurologie, Helios-Klinikum Schwelm, Dr. Moeller-Str. 15, 58332, Schwelm, Deutschland.
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Straße 450, 41063, Mönchengladbach, Deutschland.
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Optimized multimatrix calibration concept for liquid chromatography mass spectrometry-based bioanalysis methods. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1159:122393. [PMID: 33137679 DOI: 10.1016/j.jchromb.2020.122393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/05/2020] [Accepted: 09/19/2020] [Indexed: 10/23/2022]
Abstract
In this paper, a calibration procedure for LC/MS-based bioanalysis methods, termed "A/B fortification", is proposed. The concept relies on the post-extraction fortification (B-spike) of an aliquot of the injection-ready sample extract for the determination and compensation of specific signal suppression or enhancement effects compared to matrix-free extract prepared in buffer or mobile phase. Conventional analyte recovery, observed due to the incomplete extraction of analytes from the sample or losses during a cleanup, is determined by the conventional pre-extraction fortification (A-spike) of a blank sample that belongs to the same type of matrix as the sample with the unknown analyte concentration. This approach permits a higher throughput than conventional sample fortification strategies. The results obtained by utilizing the A/B fortification concept were extensively compared against conventional methods (representative bank matrix fortification, sample fortification and internal standard). The proposed concept (based on the pre-fortification of a reference matrix and post-fortification of the sample) was found to be significantly less biased than internal standard-based techniques. The A/B fortification indicated a better accuracy than the sample fortification or representative blank matrix fortification approach and, most importantly, produced significantly fewer outliers. This was linked to the fact that in the case of the A/B fortification, the uncertainty of the subtraction of two peak areas (fortified minus unfortified sample) is reduced, because fortifications are not made prior to the extraction step but are made into the final injection-ready sample extract. Fortification into an injection-ready aliquot eliminates all sample processing-related differences (procedural errors), which can affect conventional sample fortification-based quantifications.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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Böthig R, Schöps W, Zellner M, Fiebag K, Kowald B, Hirschfeld S, Thietje R, Kurze I, Böhme H, Kaufmann A, Jungmann O, Zumbé J, Porres D, Lümmen G, Nehiba M, Kadhum T, Forchert M, Golka K. [Urinary bladder cancer as a late sequela of spinal cord injury : Decision-making aids for assessment of this causal association]. Urologe A 2020; 59:700-709. [PMID: 32020241 DOI: 10.1007/s00120-020-01124-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND There is to date no convincing literature that has assessed the association between traumatic spinal cord injury (SCI) and the later development of urinary bladder cancer. The aim of this work is to present medical experts as well as the national accident insurance and the social courts decision-making aids based on the latest medical scientific knowledge, for assessment of this causal association. MATERIALS AND METHODS A study conducted between April 1998 and March 2017 in the BG Trauma Hospital Hamburg forms the basis for the decision-making aids. Urinary bladder cancer was diagnosed in 32 out of 6432 treated outpatient and inpatient SCI patients. Furthermore, relevant published literature was taken into consideration for the decision-making aids. RESULTS It was found that urinary bladder cancer in SCI patients occurs at a considerably younger age as compared to the general population, more frequently shows muscle invasive carcinoma with a higher grade at first diagnosis and a higher proportion of the more aggressive squamous cell carcinoma than that of the general population. Correspondingly, the survival time is extremely unfavorable. For medical experts a matrix was compiled where the various influencing factors, either for or against the recognition of an association between SCI and urinary bladder cancer, were weighted according to their relevance. CONCLUSION The results showed that urinary bladder cancer in SCI patients differs considerably from that of able-bodied patients. These differences drastically shorten the survival time. A study on patients with spina bifida, i.e., a congenital spinal cord disorder, corroborates these observations. They indicate histopathological differences that have so far been intangible.
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Affiliation(s)
- R Böthig
- Abteilung Neuro-Urologie, Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | | | - M Zellner
- Abteilung für Urologie und Neuro-Urologie, Johannesbad Fachklinik, Bad Füssing, Deutschland
| | - K Fiebag
- Abteilung Neuro-Urologie, Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland
| | - B Kowald
- Biomechanisches Labor, BG Klinikum Hamburg, Hamburg, Deutschland
| | - S Hirschfeld
- Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Hamburg, Deutschland
| | - R Thietje
- Querschnittgelähmten-Zentrum, BG Klinikum Hamburg, Hamburg, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka, Bad Berka, Deutschland
| | - H Böhme
- Klinik für Urologie, Asklepios Klinik Barmbek, Hamburg, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Krankenhaus St. Franziskus, Kliniken Maria Hilf GmbH, Mönchengladbach, Deutschland
| | - O Jungmann
- Urologische Klinik Lindenthal, Malteser Krankenhaus St. Hildegardis, Köln, Deutschland
| | - J Zumbé
- Klinik für Urologie, Klinikum Leverkusen, Leverkusen, Deutschland
| | - D Porres
- Klinik für Urologie, Klinikum Leverkusen, Leverkusen, Deutschland
| | - G Lümmen
- Urologische Abteilung, St. Josef Hospital, Betriebsstätte St. Josef Troisdorf, GFO Kliniken Troisdorf, Troisdorf, Deutschland
| | - M Nehiba
- Abteilung Neuro-Urologie, Werner-Wicker-Klinik, Bad Wildungen, Deutschland
| | - T Kadhum
- Zentrale Einrichtung Klinische Arbeitsmedizin, Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo), Dortmund, Deutschland
- Mittelrhein-Klinik Fachklinik für psychosomatische Rehabilitation, Boppard, Bad Salzig, Deutschland
| | - M Forchert
- Berufsgenossenschaft Holz und Metall, Stabsstelle UV-Recht, Bielefeld, Deutschland
| | - K Golka
- Zentrale Einrichtung Klinische Arbeitsmedizin, Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo), Dortmund, Deutschland
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Does the ion mobility resolving power as provided by commercially available ion mobility quadrupole time-of-flight mass spectrometry instruments permit the unambiguous identification of small molecules in complex matrices? Anal Chim Acta 2020; 1107:113-126. [DOI: 10.1016/j.aca.2020.02.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 12/17/2022]
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Kaufmann A, Post F, Yalcin-Siedentopf N, Baumgartner S, Biedermann F, Edlinger M, Kemmler G, Rettenbacher MA, Widschwendter CG, Zernig G, Fleischhacker WW, Hofer A. Corrigendum to "Changes in psychopathology in schizophrenia patients starting treatment with new-generation antipsychotics: therapeutic drug monitoring in a naturalistic treatment setting" [Eur. Neuropsychopharmacol. 26 (2016) 717-728]. Eur Neuropsychopharmacol 2020; 31:162-163. [PMID: 31924492 DOI: 10.1016/j.euroneuro.2019.12.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/08/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Alexandra Kaufmann
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria.
| | - Fabienne Post
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Nursen Yalcin-Siedentopf
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Susanne Baumgartner
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria; Center for Psychosocial Health, Sonnenpark Lans, Lans, Austria
| | - Falko Biedermann
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Monika Edlinger
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Georg Kemmler
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Maria A Rettenbacher
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Christian G Widschwendter
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Gerald Zernig
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - W Wolfgang Fleischhacker
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
| | - Alex Hofer
- Medical University Innsbruck, Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Innsbruck, Austria
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Höfner K, Hampel C, Kirschner-Hermanns R, Alloussi SH, Bauer RM, Bross S, Bschleipfer T, Goepel M, Haferkamp A, Hüsch T, Kaufmann A, Kiss G, Kranz J, Oelke M, Pannek J, Reitz A, Rutkowski M, Schäfer W, Schulte-Baukloh H, Schumacher S, Seif C, Schultz-Lampel D. [Use of synthetic slings and mesh implants in the treatment of female stress urinary incontinence and prolapse : Statement of the Working Group on Urological Functional Diagnostics and Female Urology of the Academy of the German Society of Urology]. Urologe A 2020; 59:65-71. [PMID: 31741004 DOI: 10.1007/s00120-019-01074-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to a safety alert issued by the US Food and Drug Administration (FDA) in 2011 for transvaginal mesh implants to treat female prolapse as a result of numerous reports of complications such as infection, chronic pain, dyspareunia, vaginal erosion, shrinkage and erosion into other organs nearly all industrial products have been withdrawn from the market in the meantime. The United Kingdom, Australia, and New Zealand extended warnings and prohibitions even on the implantation of midurethral slings (TVT, TOT). In view of these current international controversies regarding the use of implanted materials for the treatment of stress incontinence and prolapse and the lack of clear guidelines for the use of biomaterials, the opinion of the Working Group on Urological Functional Diagnostics and Female Urology should provide clarity. The Opinion is based on the SCENIHR Report of the "European Commission's Scientific Committee on Emerging and Newly Identified Health Risks", the "Consensus Statement of the European Urology Association and the European Urogynaecological Association on the Use of Implanted Materials for Treating Pelvic Organ Prolapse and Stress Urinary Incontinence" and in compliance with relevant EAU and national guidelines and the opinion of the Association for Urogynaecology and Plastic Pelvic Floor Reconstruction (AGUB eV). In addition, recommendations are given for the future handling of implants of slings and meshes for the treatment of stress incontinence and prolapse from a urologic viewpoint.
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Affiliation(s)
- K Höfner
- Urologische Klinik, Evangelisches Krankenhaus Oberhausen, Virchowstr. 20, 46047, Oberhausen, Deutschland.
| | - C Hampel
- Urologische Abteilung, Marien-Hospital Erwitte, Erwitte, Deutschland
| | - R Kirschner-Hermanns
- Neuro-Urologie/Urologie Universitätsklinikum Bonn und Neuro-Urologie, Neurologisches Rehabilitationszentrum der Godeshöhe e. V., Bonn, Deutschland
| | - S H Alloussi
- Abteilung Urologie, Universitätsspital Basel, Basel, Schweiz
| | - R M Bauer
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, Campus Großhadern, München, Deutschland
| | - S Bross
- Urologische Klinik, Fürst-Stirum-Klinik Bruchsal, Bruchsal, Deutschland
| | - T Bschleipfer
- Klinik für Urologie, Andrologie und Kinderurologie, Klinikum Weiden/Kliniken Nordoberpfalz AG, Weiden i. d. Oberpfalz, Deutschland
| | - M Goepel
- Klinik für Urologie und Nephrologie, Helios Klinikum Niederberg, Velbert, Deutschland
| | - A Haferkamp
- Urologische Klinik und Poliklinik, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Deutschland
| | - T Hüsch
- Urologische Klinik und Poliklinik, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH Mönchengladbach, Mönchengladbach, Deutschland
| | - G Kiss
- Institution Neuro-Urologische Ambulanz, Univ. Klinik f. Urologie Innsbruck, Innsbruck, Österreich
| | - J Kranz
- St.-Antonius Hospital, Klinik für Urologie und Kinderurologie Eschweiler, Eschweiler, Deutschland
- Universitätsklinik und Poliklinik für Urologie, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
| | - M Oelke
- Klinik für Urologie, Kinderurologie und Urologische Onkologie, St. Antonius-Hospital Gronau, Gronau, Deutschland
| | - J Pannek
- Neuro-Urologie, Schweizer Paraplegiker-Zentrum Nottwil, Nottwil, Schweiz
- Urologische Klinik, Inselspital, Universitätsspital, Universität Bern, Bern, Schweiz
| | - A Reitz
- KontinenzZentrum Hirslanden Zürich, Zürich, Schweiz
| | - M Rutkowski
- Urologische Klinik, Landesklinikum Korneuburg, Korneuburg, Österreich
| | | | - H Schulte-Baukloh
- Urologie Turmstraße (Gemeinschaftspraxis), Berlin Mitte/Moabit, Deutschland
| | - S Schumacher
- Urology Department, Healthpoint Hospital, Abu Dhabi, Vereinigte Arabische Emirate
| | - C Seif
- Urologiezentrum Alter Markt, Kiel, Deutschland
| | - D Schultz-Lampel
- Kontinenzzentrum Südwest, Schwarzwald-Baar Klinikum Villingen-Schwenningen, Villingen-Schwenningen, Deutschland
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Hoertnagl CM, Kaufmann A, Yalcin-Siedentopf N, Pfaffenberger NM, Frajo-Apor B, Pardeller S, Kemmler G, Hofer A. Premorbid Social Functioning and Affective Symptoms Predict Subjective Outcome Among Outpatients With Schizophrenia. Front Psychiatry 2020; 11:570857. [PMID: 33192696 PMCID: PMC7554309 DOI: 10.3389/fpsyt.2020.570857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022] Open
Abstract
Improving the subjective outcome of patients is an important target in the treatment of schizophrenia. Accordingly, the aim of the present study was to examine the association of factors deemed relevant in this context, i.e., premorbid functioning, residual symptoms, and side effects of antipsychotic medication, with subjective outcome. To this end, 70 clinically stable outpatients with schizophrenia were included into a cross-sectional study. Premorbid functioning, psychopathology, and side effects were assessed by using the Premorbid Adjustment Scale, the Positive and Negative Syndrome Scale, and the Udvalg for Kliniske Undersogelser Side Effect Rating Scale, respectively. Subjective outcome was measured in terms of life satisfaction (Life Satisfaction Questionnaire), self-esteem (Index of Self-Esteem), and needs for care (Berliner Bedürfnisinventar). Both premorbid social functioning and affective symptoms predicted life satisfaction, self-esteem, and patients' basic needs, whereas positive and negative symptoms predicted needs in the health, social, and functional domains. Concerning side effects, parkinsonism and akathisia showed a significant negative correlation with self-esteem. These findings highlight the complex nature of subjective outcome in patients suffering from schizophrenia. Evidently, premorbid social functioning plays a prominent role in the experienced subjective outcome during the course of the illness. Furthermore, these preliminary findings underscore that constant efforts are essential to treat residual symptoms of the disorder and to avoid extrapyramidal motor side effects of antipsychotic medication. Longitudinal studies are needed to investigate this latter point in more detail.
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Affiliation(s)
- Christine M Hoertnagl
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Alexandra Kaufmann
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Nursen Yalcin-Siedentopf
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Nicole M Pfaffenberger
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Beatrice Frajo-Apor
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Silvia Pardeller
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Georg Kemmler
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
| | - Alex Hofer
- Department of Psychiatry, Psychotherapy and Psychosomatics, Division of Psychiatry I, Medical University Innsbruck, Innsbruck, Austria
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Farbmacher E, Bregolin T, Friedrich LM, Mechtcheriakov S, Kaufmann A, Hausmann A, Weiner R, Hofer A, Zernig G. Optimization of a combined therapeutic drug monitoring – pharmacogenetic (TDMPG) approach to explain subtherapeutic, therapeutic and supratherapeutic concentrations of neuropsychopharmacologic medications. PHARMACOPSYCHIATRY 2018. [DOI: 10.1055/s-0038-1649530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - T Bregolin
- Abteilung für Experimentelle Psychiatrie
| | - LM Friedrich
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - S Mechtcheriakov
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - A Kaufmann
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - A Hausmann
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - R Weiner
- humatrix AG, Pfungstadt, Germany
| | - A Hofer
- Universitätsklinik für Psychiatrie 1, Medizinische Universität Innsbruck, Innsbruck, Austria
| | - G Zernig
- Abteilung für Experimentelle Psychiatrie
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13
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Kaufmann A. [Urodynamic studies prior to urinary incontinence surgery : What is useful?]. Urologe A 2017; 56:1539-1547. [PMID: 29079907 DOI: 10.1007/s00120-017-0530-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Surgery is often necessary after failure of conservative therapy for urinary incontinence. Guidelines recommend urodynamic studies before surgery. A distinction is made between non-invasive (uroflowmetry) and invasive methods (cystometry and pressure-flow study, if necessary as combined videourodynamics, as well as urethral pressure profile). All examinations serve to objectify and quantify the symptoms, to correctly assign symptoms to the pathophysiology and anatomy as well as to identify risk factors, which often have a significant influence on the success of surgical therapy. Given appropriate experience, complications and often significant sequelae of bladder dysfunction affecting the patient's quality of life and life expectancy can be recognized. Urodynamic studies are performed to help narrow down potential diagnoses, to develop therapeutic strategies, and to obtain prognostic parameters. The following article is intended to provide some support.
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Affiliation(s)
- A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Akademisches Lehrkrankenhaus der Uniklinik RWTH Aachen, Viersener Straße 450, 41063, Mönchengladbach, Deutschland.
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14
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Edmondson R, Crosbie E, Nickkho-Amiry M, Kaufmann A, Stelloo E, Nijman H, Leary A, Auguste A, Mileshkin L, Pollock P, MacKay H, Powell M, Bosse T, Creutzberg C, Kitchener H. Markers of the p53 pathway further refine molecular profiling in high-risk endometrial cancer: A Trans PORTEC initiative. Gynecol Oncol 2017; 146:327-333. [DOI: 10.1016/j.ygyno.2017.05.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
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Bremer J, Domurath B, Böthig R, Kaufmann A, Geng V. [Medical quality standards for selected urological aids and devices : Consensus for patients with neurogenic urinary bladder dysfunction]. Urologe A 2017; 57:155-163. [PMID: 28707096 DOI: 10.1007/s00120-017-0457-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Using the CE mark of therapeutic appliances is, on its own, not sufficient enough for their appropriate and effective application. In order to treat the patient successfully, not jeopardizing the success of the treatment, medical quality criteria for therapeutic appliances care are necessary to acceptably compensate for a patient's disabilities. OBJECTIVES Medical quality criteria are formulated for the most frequently used urological aids and devices, considering hygienic requirements, international literature and the practical experience of physicians and nurses with regard to the care of patients with neurogenic urinary bladder dysfunction. METHODS An expert group of urologists, surgeons, rehabilitation physicians and nurses has developed medical quality criteria via a structured consensus procedure. Developing these criteria, the group has taken into account current jurisprudence, the current resource directory of neurourological relevant aids, data from international literature and hygiene requirements. RESULTS Medical quality requirements are discussed and defined for selected groups of urological devices (single use catheters, indwelling catheters, external catheters, urine bags, templates and diapers as well as devices for the electrostimulation of nerves). CONCLUSION The presented quality requirements offer the possibility to stabilize quality of care with neurourological relevant therapeutic appliances. The catalogue of therapeutic appliances must be urgently updated. Urinal catheters for single use must be classified as an individual product group. Devices for anterior root stimulation and neuromodulation must be included in the resource directory. The incontinence severity classification needs to be reviewed.
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Affiliation(s)
- J Bremer
- BDH-Klinik Greifswald, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - B Domurath
- Kliniken Beelitz GmbH, Paracelsus-Ring 6A, 14547, Beelitz, Deutschland.
| | - R Böthig
- BG Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland
| | - A Kaufmann
- Krankenhaus St. Franziskus, Viersener Str. 450, 41063, Mönchengladbach, Deutschland
| | - V Geng
- Manfred Sauer Stiftung, Neurott 20, 74931, Lobbach, Deutschland
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Böthig R, Domurath B, Kaufmann A, Bremer J, Vance W, Kurze I. [Neuro-urological diagnosis and therapy of lower urinary tract dysfunction in patients with spinal cord injury : S2k Guideline of the German-Speaking Medical Society of Paraplegia (DMGP), AWMF register no. 179/001]. Urologe A 2017; 56:785-792. [PMID: 28314966 DOI: 10.1007/s00120-017-0354-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Most patients with spinal cord injury (SCI) suffer from neurogenic lower urinary tract dysfunction (NLUTD), bowel dysfunction and sexual dysfunction. If these remain untreated, severe medical complications and serious limitations (restrictions) in quality of life are imminent. OBJECTIVES In the long term, there are considerable differences in the treatment results of highly specialized centers versus other treatment facilities. MATERIALS AND METHODS Against this background, a consensus-based guideline, according to the AWMF (Association of the Scientific Medical Societies in Germany) criteria (S2k), was developed by the neuro-urology working group of the DMPG (German-Speaking Medical Society of Paraplegia). RESULTS The guideline defines the principles and objectives of the neuro-urological care of patients with SCI and discusses in detail the principles of diagnosis and therapy of NLUTD. The need for video-urodynamic studies as a basis for the classification of the NLUTD and as a foundation for the development of a treatment strategy is emphasized. Both conservative and surgical therapy options and their indications are explained in detail. Possible complications and their prevention in the long-term course of SCI are presented with a particular consideration of the specific features of urinary tract infections and autonomic dysreflexia. Finally, the principles of the provision of urological appliances are discussed. CONCLUSIONS The presented S2k guideline provides the current standards in the neuro-urological care of patients with NLUTD due to SCI. Their consistent implementation both in the acute and chronic phase as well as in the context of lifelong surveillance of SCI patients should prevent the impending complications of NLUTD.
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Affiliation(s)
- R Böthig
- Abt. Neuro-Urologie, Querschnittgelähmtenzentrum, BG-Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | - B Domurath
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Str. 450, 41063, Mönchengladbach, Deutschland
| | - J Bremer
- Zentrum für Neuro-Rehabilitation, Querschnittgelähmten-Zentrum, BDH-Klinik Greifswald gGmbH, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - W Vance
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka, Robert-Koch-Allee 9, 99437, Bad Berka, Deutschland
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17
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Bremer J, Böthig R, Domurath B, Kutzenberger J, Kaufmann A, Pretzer J, Klask JP, Geng V, Vance W, Kurze I. [Objective and subjective requirement of aids and appliances in patients with neurogenic lower urinary tract dysfunction : Multicenter study to determinate the daily necessity of urological aids and appliances]. Urologe A 2016; 55:1553-1563. [PMID: 27725995 DOI: 10.1007/s00120-016-0250-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The provision of urological appliances for patients with neurogenic lower urinary tract dysfunction (NLUTD) is essential. Hitherto existing standard guidelines for the estimation of monthly material requirements are based solely on estimates. OBJECTIVE The goal of this work was to define the objective and subsequently subjective requirements for urological appliances on a scientifically validated basis. MATERIALS AND METHODS Data concerning bladder management and daily consumption of urological appliances for patients with NLUTD were collected through a standardized survey at six different centers in Germany during the period of October to December 2014 and statistically evaluated. RESULTS In all, 767 patient records were analyzed: 543 men and 221 woman (N/A = 3). The daily disposable catheter consumption of 577 patients who exclusively used intermittent catheterization was 5.13. Patients who used other means of bladder emptying (n = 31) in addition to catheterization consumed on average 3.17 catheters. The margin of deviation was larger for children. Of the 608 patients with intermittent catheterization, 94 (15.5 %) required additional paddings as absorbent aids (on average 2.29 paddings per day), 34 patients (5.6 %) additionally used pants (2.55 per day) and 46 patients (7.6 %) utilized condom catheters (3.81 per day) between catheterization. Among all surveyed patients, 126 (16.4 %) used paddings (5.03 per day) and 51 patients (6.6 %) pants (3.03 per day). Of all male respondents 82 (15.1 %) used condom catheters (2.80 urinary sheaths per day). CONCLUSION Applying twice the standard deviation of the mean as a measure of assessing the objective requirement of urological appliances and aids for adult patients with NLUTD allows the following daily thresholds to be defined: 1-9 disposable catheters, 0-7 urinary sheaths, 1-9 paddings and 0-7 pants. These thresholds can serve as a basis for estimating the subjective need. They allow for a scientifically validated benchmark for an economically feasible and patient-tailored supply with urological aids and appliances. Individually required appliances and aids have to be recognized. Verifiable quality standards need to be developed.
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Affiliation(s)
- J Bremer
- Neurologisches Rehabilitationszentrum und Querschnittgelähmtenzentrum, BDH-Klinik Greifswald GmbH, Karl-Liebknecht-Ring 26a, 17491, Greifswald, Deutschland
| | - R Böthig
- Abt. Neuro-Urologie, Querschnittgelähmtenzentrum, BG-Klinikum Hamburg, Bergedorfer Str. 10, 21033, Hamburg, Deutschland.
| | - B Domurath
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - J Kutzenberger
- Abteilung für Neuro-Urologie, Werner Wicker KG, Im Kreuzfeld 4, 34537, Bad Wildungen-Reinhardshausen, Deutschland
| | - A Kaufmann
- Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Viersener Straße 450, 41063, Mönchengladbach, Deutschland
| | - J Pretzer
- Klinik für Urologie und Neuro-Urologie, Unfallkrankenhaus Berlin, Warener Str. 7, 12683, Berlin, Deutschland
| | - J P Klask
- Urologie, BG Klinikum Duisburg, Großenbaumer Allee 250, 47249, Duisburg, Deutschland
| | - V Geng
- Manfred-Sauer-Stiftung, Neurott 20, 74931, Lobbach, Deutschland
| | - W Vance
- Neurologische Rehabilitationsklinik, Neuro-Urologisches Zentrum, Kliniken Beelitz GmbH, Paracelsusring 6a, 14547, Beelitz-Heilstätten, Deutschland
| | - I Kurze
- Querschnittgelähmten-Zentrum, Klinik für Paraplegiologie und Neuro-Urologie, Zentralklinik Bad Berka GmbH, Robert-Koch-Allee 9, 99437, Bad Berka, Deutschland
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Abstract
The syndrome of overactive bladder (OAB) with the symptoms of frequency, urgency and nocturia is often seen. After the diagnosis has been made by careful exclusion of other conditions, there are different symptomatic treatment strategies available. These include drug treatment as well as minimally invasive local surgical treatments and treatments which intervene with the control of the bladder by modulating central nervous areas. Alternative methods such as acupuncture may help in individual cases; the placebo effect is high and there is a lack of controlled studies.
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Affiliation(s)
- A. Kaufmann
- Albert Kaufmann, Zentrum für Kontinenz und Neuro-Urologie, Kliniken Maria Hilf GmbH, Mönchengladbach
| | - R. Kirschner-Hermanns
- Urologische Klinik, Zentrum für Kontinenz und Neuro-Urologie, Rheinische Friedrich-Wilhelms Universität und neurologisches Rehabilitationszentrum Godeshöhe, Universitätsklinikum Bonn
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Kaufmann A, Walker S. Extension of the Q Orbitrap intrascan dynamic range by using a dedicated customized scan. Rapid Commun Mass Spectrom 2016; 30:1087-1095. [PMID: 27003046 DOI: 10.1002/rcm.7530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
RATIONALE The intrascan dynamic range of modern Orbitrap instrumentation is specified to reach 1:5000, while the interscan dynamic range is significantly larger due to the utilization of the automatic gain control feature. There are some applications (e.g. residue analysis in complex matrices, metabolomics or structural elucidation) where a wider intrascan dynamic range is desirable. METHODS The Application Programming Interface (API) of the Q Exactive Orbitrap mass spectrometer has been used to program a customized scan in order to cover a larger intrascan dynamic range. Different approaches were used, which were all based on the variation of the isolation time of low-abundance versus high-abundance mass range segments. The differently attenuated mass range segments isolated by the quadrupole were sequentially forwarded to the C-trap. Finally, the accumulated mass segments were measured within the Orbitrap analyzer. RESULTS The spectra obtained by the customized scans show an enlarged dynamic range. This has been demonstrated by monitoring the higher isotope mass peaks (first and second isotope) of a low intensity analyte. Furthermore, a practical application (veterinary drugs in bovine kidney) has been investigated with the proposed customized scan. Analytes eluting within the retention time region of very intense matrix peaks (e.g. peptides) showed improved detectability when utilizing the customized scan. CONCLUSIONS The extension of the intrascan dynamic range by a customized scan is helpful when analyzing residues which happen to elute together with a dominating matrix peak or within a high ion abundance region (e.g. dead volume). Furthermore, this feature helps in the process of determining the elemental composition of compounds by permitting the investigation of low-abundance ions (e.g. belonging to the isotopic fine structure of the investigated compound).
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Kontales Labor Zürich, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - S Walker
- Official Food Control Authority, Kontales Labor Zürich, Fehrenstrasse 15, 8032, Zürich, Switzerland
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Kaufmann A, Walker S, Mol G. Product ion isotopologue pattern: A tool to improve the reliability of elemental composition elucidations of unknown compounds in complex matrices. Rapid Commun Mass Spectrom 2016; 30:791-799. [PMID: 26969920 DOI: 10.1002/rcm.7476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/19/2015] [Accepted: 12/06/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Elucidation of the elemental compositions of unknown compounds (e.g., in metabolomics) generally relies on the availability of accurate masses and isotopic ratios. This study focuses on the information provided by the abundance ratio within a product ion pair (monoisotopic versus the first isotopic peak) when isolating and fragmenting the first isotopic ion (first isotopic mass spectrum) of the precursor. METHODS This process relies on the capability of the quadrupole within the Q Orbitrap instrument to isolate a very narrow mass window. Selecting only the first isotopic peak (first isotopic mass spectrum) leads to the observation of a unique product ion pair. The lighter ion within such an isotopologue pair is monoisotopic, while the heavier ion contains a single carbon isotope. The observed abundance ratio is governed by the percentage of carbon atoms lost during the fragmentation and can be described by a hypergeometric distribution. RESULTS The observed carbon isotopologue abundance ratio (product ion isotopologue pattern) gives reliable information regarding the percentage of carbon atoms lost in the fragmentation process. It therefore facilitates the elucidation of the involved precursor and product ions. Unlike conventional isotopic abundances, the product ion isotopologue pattern is hardly affected by isobaric interferences. Furthermore, the appearance of these pairs greatly aids in cleaning up a 'matrix-contaminated' product ion spectrum. CONCLUSIONS The product ion isotopologue pattern is a valuable tool for structural elucidation. It increases confidence in results and permits structural elucidations for heavier ions. This tool is also very useful in elucidating the elemental composition of product ions. Such information is highly valued in the field of multi-residue analysis, where the accurate mass of product ions is required for the confirmation process. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - S Walker
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - G Mol
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland
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Kaufmann A, Wartelsteiner F, Yalcin-Siedentopf N, Baumgartner S, Biedermann F, Edlinger M, Kemmler G, Rettenbacher MA, Rissanen TT, Widschwendter CG, Zernig G, Fleischhacker WW, Hofer A. Changes in psychopathology in schizophrenia patients starting treatment with new-generation antipsychotics: therapeutic drug monitoring in a naturalistic treatment setting. Eur Neuropsychopharmacol 2016; 26:717-28. [PMID: 26879690 DOI: 10.1016/j.euroneuro.2016.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/03/2015] [Accepted: 02/01/2016] [Indexed: 11/24/2022]
Abstract
Previous studies on the relationship between plasma levels of new-generation antipsychotics (NGAs) and clinical response did not account for inter- and intra-individual variability in drug levels. Therefore, the present study calculated the ratio of observed versus expected NGA plasma levels and investigated its relationship with changes in the Positive and Negative Syndrome Scale (PANSS). Data of patients starting monotherapy with a NGA were collected 2, 4, 8, and 12 weeks after initiation of treatment. Next to the assessment of changes in psychopathology (PANSS) the ratio of observed versus expected plasma level was calculated. A total number of 221 ratios were eligible for analysis. About half of them ranged from 0.5-2 and were considered "normal", whereas the others were considered either "too low" or "too high". Psychopathological symptoms improved over the course of treatment, but changes in PANSS from baseline did not correlate significantly with the ratios of observed versus expected plasma levels at any assessment. The lack of linear correlation can be explained by the fact that 92% of the observed NGA plasma levels were at ≥ 50% of the lower limit of the therapeutic reference range, i.e., within the asymptote of the logistic plasma level-effect relationship. Accordingly, our findings indicate that the great majority of patients were treated with NGA doses that led to optimal plasma levels, based on the clinical impression of the treating psychiatrist only. Thus, calculating the ratio of observed versus expected plasma level may not be necessary in a routine clinical setting.
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Affiliation(s)
- Alexandra Kaufmann
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Fabienne Wartelsteiner
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Nursen Yalcin-Siedentopf
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Susanne Baumgartner
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Falko Biedermann
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Monika Edlinger
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Georg Kemmler
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Austria
| | - Maria A Rettenbacher
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Tanja T Rissanen
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Christian G Widschwendter
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Gerald Zernig
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Austria
| | - W Wolfgang Fleischhacker
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria
| | - Alex Hofer
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Austria.
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Eich-Krohm A, Kaufmann A, Winkler-Stuck K, Werwick K, Spura A, Robra BP. First Contact: interprofessional education based on medical students' experiences from their nursing internship. GMS J Med Educ 2016; 33:Doc20. [PMID: 27280131 PMCID: PMC4895841 DOI: 10.3205/zma001019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 10/26/2015] [Accepted: 11/16/2015] [Indexed: 05/13/2023]
Abstract
GOAL The aim of the course "interprofessional communication and nursing" is to reflect medical students' experiences from the nursing internship. The content of the course focuses on barriers and support of interprofessional communication as a foundation for teamwork between nursing professionals and physicians. The nursing internship is for most medical students the first contact with nursing professionals and can lead to perceptions about the other group that might hinder interprofessional teamwork and consequently harm patients. To meet the demographic challenges ahead it is important to emphasize interprofessional education in the study of medicine and better prepare future physicians for interprofessional collaboration. METHOD The design of the course includes an assessment of a change in the students' perceptions about nursing and interprofessional communication. The first class meeting presents the starting point of the assessment and visualizes students' perceptions of nursing and medicine. The content of the following class meetings serve to enhance the students' knowledge about nursing as a profession with its own theories, science and scholarship. In addition, all students have to write a research paper that entails to interview one nursing professional and one physician about their ideas of interprofessional communication and to compare the interviews with their own experiences from the nursing internship. To access what students learned during the course a reflective discussion takes place at the last meeting combined with an analysis of the students' research papers. RESULTS The assessment of the students' perceptions about the nursing profession and the importance of successful interprofessional communication showed a new and deeper understanding of the topic. They were able to identify barriers and support measures of interprofessional communication and their own responsibilities as part of a team. CONCLUSION Interprofessional education is an important part of medical education and should be a topic from the beginning. The assessment of the course shows that it is possible and important to integrate the topic early in the curriculum.
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Affiliation(s)
- Astrid Eich-Krohm
- Otto-von- Guericke-Universität Magdeburg, Medizinische Fakultät, Institut für Sozialmedizin und Gesundheitsökonomie, Magdeburg, Germany
- *To whom correspondence should be addressed: Astrid Eich-Krohm, Otto-von- Guericke-Universität Magdeburg, Medizinische Fakultät, Institut für Sozialmedizin und Gesundheitsökonomie, Leipziger Straße 44, D-39120 Magdeburg, Germany, E-mail:
| | | | - Kirstin Winkler-Stuck
- Otto-von-Guericke-Universität Magdeburg, Medizinische Fakultät, Studiendekanat, Magdeburg, Germany
| | - Katrin Werwick
- Otto-von-Guericke-Universität Magdeburg, Medizinische Fakultät, Studiendekanat, Magdeburg, Germany
| | - Anke Spura
- Otto-von- Guericke-Universität Magdeburg, Medizinische Fakultät, Institut für Sozialmedizin und Gesundheitsökonomie, Magdeburg, Germany
| | - Bernt-Peter Robra
- Otto-von- Guericke-Universität Magdeburg, Medizinische Fakultät, Institut für Sozialmedizin und Gesundheitsökonomie, Magdeburg, Germany
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Hoertnagl CM, Biedermann F, Yalcin-Siedentopf N, Muehlbacher M, Rauch AS, Baumgartner S, Kaufmann A, Kemmler G, Deisenhammer EA, Hausmann A, Hofer A. Prosodic and semantic affect perception in remitted patients with bipolar I disorder. J Clin Psychiatry 2015; 76:e779-86. [PMID: 26132686 DOI: 10.4088/jcp.14m08990] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 07/30/2014] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Bipolar disorder is associated with impairments in emotion processing that are present during both mood episodes and periods of remission. In this context, most previous studies have investigated facial emotion recognition abilities. In contrast, the current study focused on the perception of prosodic and semantic affect. METHOD The present study directly contrasted the perception of prosodic and semantic affect in 58 remitted patients meeting DSM-IV criteria for bipolar I disorder and 45 healthy volunteers by using 2 subtests of the Comprehensive Affective Testing System (CATS) and investigated the relationship of prosodic and semantic affect perception with patients' outcomes. Participants were investigated from June 2011 until May 2013. RESULTS Patients and controls did not differ regarding the recognition of the vocal emotion while ignoring the affective meaning of test trials (CATS 1), but patients significantly more often misinterpreted sad as happy prosody (P = .039). In addition, patients were impaired in recognizing the affective meaning of test trials while ignoring the vocal emotion (CATS 2; P = .052). Again, they significantly more often misinterpreted a sad affective meaning as a happy one (P = .025). However, the findings on misinterpretations did not withstand Bonferroni correction for multiple testing. CATS 1 test performance was negatively correlated with depression scores, whereas a positive association was found between performance on both tests and patients' functioning. Patients indicated a significantly lower quality of life (P < .001); however, multiple mediation analysis revealed that this finding was not mediated by differences in prosodic and/or semantic affect perception between the 2 groups. CONCLUSIONS Even during periods of remission, patients with bipolar disorder may be impaired in semantic but not prosodic affect perception. Notably, they may frequently misinterpret sadly expressed emotions as happy ones. Our findings underscore the relevance of these deficits in the psychosocial context.
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Affiliation(s)
- Christine M Hoertnagl
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
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Tinhofer I, Jöhrens K, Keilholz U, Kaufmann A, Lehmann A, Weichert W, Stenzinger A, Stromberger C, Klinghammer K, Becker ET, Dommerich S, Stölzel K, Hofmann V, Hildebrandt B, Moser L, Ervens J, Böttcher A, Albers A, Stabenow R, Reinecke A, Budach V, Hoffmeister B, Raguse J. Contribution of human papilloma virus to the incidence of squamous cell carcinoma of the head and neck in a European population with high smoking prevalence. Eur J Cancer 2015; 51:514-521. [DOI: 10.1016/j.ejca.2014.12.018] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 12/20/2014] [Indexed: 11/24/2022]
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Determination of nitrofuran and chloramphenicol residues by high resolution mass spectrometry versus tandem quadrupole mass spectrometry. Anal Chim Acta 2015; 862:41-52. [DOI: 10.1016/j.aca.2014.12.036] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/16/2014] [Accepted: 12/17/2014] [Indexed: 10/24/2022]
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Yalcin-Siedentopf N, Wartelsteiner F, Kaufmann A, Biedermann F, Edlinger M, Kemmler G, Rettenbacher MA, Widschwendter CG, Zernig G, Fleischhacker WW, Hofer A. Measuring adherence to medication in schizophrenia: the relationship between attitudes toward drug therapy and plasma levels of new-generation antipsychotics. Int J Neuropsychopharmacol 2015; 18:pyu091. [PMID: 25522423 PMCID: PMC4376546 DOI: 10.1093/ijnp/pyu091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Nonadherence to medication is still a major problem in the treatment of schizophrenia. The current longitudinal study investigated whether the patients' attitudes toward treatment correlated with the ratio of observed vs expected plasma levels of antipsychotic drugs as an objective measurement of adherence. METHODS Data of patients starting monotherapy with a new-generation antipsychotic were collected 2, 4, and 12 weeks after the initiation of treatment. Next to the assessment of patients' attitudes toward medication by means of the Drug Attitude Inventory, the ratio of the observed vs expected plasma level was calculated. Antipsychotic-induced side effects were evaluated by means of the Udvalg for Kliniske Undersogelser Side Effect Rating Scale. RESULTS A total of 93 patients were eligible for statistical analysis. About one-half of the ratios of observed vs expected plasma levels ranged from 0.5 to 2 and were considered normal, whereas the other ratios were considered either too low (<0.5) or too high (>2). No consistent correlation between patients' attitude toward drug therapy and the individual ratios of observed vs expected plasma levels of medication was detected. This finding was not affected by side effects. CONCLUSIONS Our results highlight the importance of recognizing the complex nature of adherence to medication in schizophrenia patients. Importantly, we found no consistent correlation between subjective and objective measures of medication adherence. Therefore, monitoring adherence to medication remains a challenge in clinical practice.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Alex Hofer
- Biological Psychiatry Division (Drs Yalcin-Siedentopf, Wartelsteiner, Kaufmann, Biedermann, Edlinger, Rettenbacher, Widschwendter, Fleischhacker, and Hofer), and General and Social Psychiatry Division (Drs Kemmler and Zernig), Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Innsbruck, Austria
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Gross G, Becker N, Brockmeyer N, Esser S, Freitag U, Gebhardt M, Gissmann L, Hillemanns P, Grundhewer H, Ikenberg H, Jessen H, Kaufmann A, Klug S, Klussmann J, Nast A, Pathirana D, Petry K, Pfister H, Röllinghof U, Schneede P, Schneider A, Selka E, Singer S, Smola S, Sporbeck B, von Knebel Doeberitz M, Wutzler P. Impfprävention HPV-assoziierter Neoplasien. Laryngorhinootologie 2014; 93:848-56. [DOI: 10.1055/s-0034-1382013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- G. Gross
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsmedizin, Universität Rostock, Rostock
| | - N. Becker
- Deutsches Krebsforschungszentrum (DKFZ), Epidemiologie von Krebserkrankungen (C020), Heidelberg
| | - N. Brockmeyer
- Klinik für Dermatologie und Allergologie der Ruhr-Universität, Bochum
| | - S. Esser
- Klinik für Dermatologie und Venerologie, Universitätsklinikum Essen, Essen
| | | | | | - L. Gissmann
- Deutsches Krebsforschungszentrum (DKFZ), FS Infektion und Krebs, Heidelberg
| | - P. Hillemanns
- Medizinische Hochschule Hannover (MHH), Frauenklinik, Abt. I für Frauenheilkunde und Geburtshilfe, Hannover
| | - H. Grundhewer
- Ausschuss Prävention des Berufsverbandes der Kinder- und Jugendärzte (BVKJ), Berlin
| | - H. Ikenberg
- MVZ für Zytologie und Molekularbiologie (CytoMol), Frankfurt/M
| | | | - A. Kaufmann
- Gynäkologische Tumorimmunologie, Gynäkologie mit Hochschulambulanz, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - S. Klug
- Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden
| | - J. Klussmann
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität Gießen, Gießen
| | - A. Nast
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - D. Pathirana
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - K. Petry
- Klinikum Wolfsburg, Abteilung Gynäkologische Onkologie, Wolfsburg
| | - H. Pfister
- Institut für Virologie der Universität zu Köln
| | | | - P. Schneede
- Klinikum Memmingen, Klinik für Urologie, Memmingen
| | - A. Schneider
- Klinik und Poliklinik für Gynäkologie, Charité – Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - E. Selka
- VulvaKarzinom-SHG e. V., Wilhelmshaven
| | - S. Singer
- Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Institut für Medizinische Biometrie, Epidemiologie und Informatik, Abt. Epidemiologie und Versorgungsforschung, Mainz
| | - S. Smola
- Institut für Virologie, Institut für Infektionsmedizin, Universität des Saarlandes, Homburg/Saar
| | - B. Sporbeck
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité – Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - M. von Knebel Doeberitz
- Abteilung für Molekulare Pathologie, Pathologisches Institut des Universitätsklinikum Heidelberg, Heidelberg
| | - P. Wutzler
- Universitätsklinikum Jena (Friedrich-Schiller-Universität), Institut für Virologie und Antivirale Therapie, Beutenberg Campus, Jena
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Reliability of veterinary drug residue confirmation: high resolution mass spectrometry versus tandem mass spectrometry. Anal Chim Acta 2014; 856:54-67. [PMID: 25542358 DOI: 10.1016/j.aca.2014.11.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/10/2014] [Accepted: 11/25/2014] [Indexed: 11/19/2022]
Abstract
Confirmation of suspected residues has been a long time domain of tandem triple quadrupole mass spectrometry (QqQ). The currently most widely used confirmation strategy relies on the use of two selected reaction monitoring signals (SRM). The details of this confirmation procedure are described in detail in the Commission Decision 93/256/EC (CD). On the other hand, high resolution mass spectrometry (HRMS) is nowadays increasingly used for trace analysis. Yet its utility for confirmatory purposes has not been well explored and utilized, since established confirmation strategies like the CD do not yet include rules for modern HRMS technologies. It is the focus of this paper to evaluate the likelihood of false positive and false negative confirmation results, when using a variety of HRMS based measurement modes as compared to conventional QqQ mass spectrometry. The experimental strategy relies on the chromatographic separation of a complex blank sample (bovine liver extract) and the subsequent monitoring of a number of dummy transitions respectively dummy accurate masses. The term "dummy" refers to precursor and derived product ions (based on a realistic neutral loss) whose elemental compositions (CxHyNzOdCle) were produced by a random number generator. Monitoring a large number of such hypothetical SRM's, or accurate masses inevitably produces a number of mass traces containing chromatographic peaks (false detects) which are caused by eluting matrix compounds. The number and intensity of these peaks were recorded and standardized to permit a comparison among the two employed MS technologies. QqQ performance (compounds which happen to produce a response in two SRM traces at identical retention time) was compared with a number of different HRMS(1) and HRMS(2) detection based modes. A HRMS confirmation criterion based on two full scans (an unfragmented and an all ion fragmented) was proposed. Compared to the CD criteria, a significantly lower probability of false positive and false negative findings is obtained by utilizing this criterion.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
| | - P Butcher
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - K Maden
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - S Walker
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
| | - M Widmer
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032 Zürich, Switzerland
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Schwarz T, Spaczynski M, Kaufmann A, Wysocki J, Gałaj A, Schulze K, Suryakiran P, Thomas F, Descamps D. Persistence of immune responses to the HPV-16/18 AS04-adjuvanted vaccine in women aged 15-55 years and first-time modelling of antibody responses in mature women: results from an open-label 6-year follow-up study. BJOG 2014; 122:107-18. [PMID: 25208608 PMCID: PMC4489326 DOI: 10.1111/1471-0528.13070] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Evaluation of the long-term HPV-16/18 AS04-adjuvanted vaccine immunogenicity persistence in women. DESIGN Multicentre, open-label, long-term follow-up (NCT00947115) of a primary phase-III study (NCT00196937). SETTING Six centres in Germany and Poland. POPULATION 488 healthy women (aged 15-55 years, age-stratified into groups: 15-25, 26-45, and 46-55 years) who received three vaccine doses in the primary study. METHODS Immune responses were evaluated in serum and cervicovaginal secretion (CVS) samples 6 years after dose 1. Anti-HPV-16/18 geometric mean titres (GMTs) were measured by enzyme-linked immunosorbent assay (ELISA), and were used to fit the modified power-law and piecewise models, predicting long-term immunogenicity. Serious adverse events (SAEs) were recorded. MAIN OUTCOME MEASURES Anti-HPV-16/18 seropositivity rates and GMTs 6 years after dose 1. RESULTS At 6 years after dose 1, all women were seropositive for anti-HPV-16 and ≥97% were seropositive for anti-HPV-18 antibodies. GMTs ranged from 277.7 to 1344.6 EU/ml, and from 97.6 to 438.2 EU/ml, for anti-HPV-16 and anti-HPV-18, respectively. In all age groups, GMTs were higher (anti-HPV-16, 9.3-45.1-fold; anti-HPV-18, 4.3-19.4-fold) than levels associated with natural infection (29.8 EU/ml). A strong correlation between serum and CVS anti-HPV-16/18 levels was observed, with correlation coefficients of 0.81-0.96 (anti-HPV-16) and 0.69-0.84 (anti-HPV-18). Exploratory modelling based on the 6-year data predicted vaccine-induced anti-HPV-16/18 levels above natural infection levels for at least 20 years, except for anti-HPV-18 in the older age group (piecewise model). One vaccine-related and two fatal SAEs were reported. CONCLUSIONS At 6 years after vaccination, immune responses induced by the HPV-16/18 AS04-adjuvanted vaccine were sustained in all age groups.
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Affiliation(s)
- T Schwarz
- Central Laboratory and Vaccination Centre, Stiftung Juliusspital, Würzburg, Germany
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Hoertnagl CM, Yalcin-Siedentopf N, Baumgartner S, Biedermann F, Deisenhammer EA, Hausmann A, Kaufmann A, Kemmler G, Mühlbacher M, Rauch AS, Fleischhacker WW, Hofer A. Affective prosody perception in symptomatically remitted patients with schizophrenia and bipolar disorder. Schizophr Res 2014; 158:100-4. [PMID: 25096540 DOI: 10.1016/j.schres.2014.07.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 07/14/2014] [Accepted: 07/15/2014] [Indexed: 10/24/2022]
Abstract
Affect perception has frequently been shown to be impaired in patients suffering from schizophrenia or bipolar disorder (BD), but it remains unclear whether these impairments exist during symptomatic remission and whether the two disorders differ from each other in this regard. Most previous studies have investigated facial affect recognition, but not the ability to decode mental states from emotional tone of voice, i.e. affective prosody perception (APP). Accordingly, the present study directly compared APP in symptomatically remitted patients with schizophrenia or BD and healthy control subjects and investigated its relationship with residual symptomatology in patients. Patients with schizophrenia and BD showed comparable APP impairments despite being symptomatically remitted. In comparison to healthy control subjects, overall APP deficits were found in BD but not in schizophrenia patients. Both patient groups were particularly impaired in the identification of anger and confounded it with neutral prosody. In addition, schizophrenia patients frequently confused sadness with happiness, anger, or fright. There was an inverse association between the degree of residual positive symptoms and the ability to correctly recognize happiness in schizophrenia patients. Overall, these data indicate that impairments in APP represent an enduring deficit and a trait marker of both schizophrenia and BD and that the level of impairment is comparable between disorders.
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Affiliation(s)
- Christine M Hoertnagl
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Nursen Yalcin-Siedentopf
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Susanne Baumgartner
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Falko Biedermann
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Eberhard A Deisenhammer
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Armand Hausmann
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Alexandra Kaufmann
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Georg Kemmler
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Moritz Mühlbacher
- Private Medical University of Salzburg, Department of Psychiatry and Psychotherapy, Ignaz Harrerstrasse 79, 5020 Salzburg, Austria
| | - Anna-Sophia Rauch
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Wolfgang W Fleischhacker
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria; Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Alex Hofer
- Innsbruck Medical University, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, 6020 Innsbruck, Austria.
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Karsenty G, Baverstock R, Carlson K, Diaz DC, Cruz F, Dmochowski R, Fulford S, Giannantoni A, Heesakkers J, Kaufmann A, Peyrat L, Thavaseelan J, Dasgupta P. Technical aspects of botulinum toxin type A injection in the bladder to treat urinary incontinence: reviewing the procedure. Int J Clin Pract 2014; 68:731-42. [PMID: 24472109 DOI: 10.1111/ijcp.12360] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
AIMS Standardise the injection technique with botulinum toxin type A (BoNT A) in the bladder of patients with overactive bladder (OAB) [idiopathic overactive bladder (iOAB) or neurogenic overactive bladder (nOAB) with urinary incontinence], using a literature review and a survey of an International expert panel. METHODS PubMed literature searches of BoNT A in adults with iOAB/nOAB together with a survey of 13 experts from 10 countries. RESULTS Data from 21 articles and completed questionnaires were collated. The procedure can be carried out in an out-/inpatient setting. Dose used in clinical studies vs. clinical practice was 300 and 200 U for nOAB and 200 and 100 U for iOAB. Recent studies have also demonstrated that there are no clinically relevant benefits between 100 and 150 U in iOAB or between 300 and 200 U in nOAB, though adverse effects are increased with higher doses. Usually, 30 sites for nOAB (range: 6.7-10 U/ml) and 20-30 sites for iOAB (range: 5-10 U/ml) are injected in clinical studies vs. 20-30 sites of 1 ml/injection for 200 U in nOAB and 10-20 sites of 0.5-1 ml/injection for 100 U in iOAB in clinical practice. BoNT A is usually injected directly into the detrusor, sparing the trigone. Flexible or rigid cystoscopes are used. The needle should be typically 22-27 gauge and 4 mm in length and should have a stopper to avoid any leakage or perforation of the bladder wall while ensuring a targeted injection. CONCLUSION Based on the literature and survey analysis, recommendations are proposed for the standardisation of the injection procedure.
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Affiliation(s)
- G Karsenty
- Urology and Kidney Transplantation, Aix Marseille University, Marseille, France
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Patterson MJ, Sutton RE, Forrest I, Sharrock R, Lane M, Kaufmann A, O'Donnell R, Edmondson RJ, Wilson BT, Curtin NJ. Assessing the function of homologous recombination DNA repair in malignant pleural effusion (MPE) samples. Br J Cancer 2014; 111:94-100. [PMID: 24867690 PMCID: PMC4090730 DOI: 10.1038/bjc.2014.261] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/20/2014] [Accepted: 04/23/2014] [Indexed: 12/02/2022] Open
Abstract
Background: Patients with malignant pleural effusions (MPEs) generally have advanced disease with poor survival and few therapeutic options. Cells within MPEs may be used to stratify patients for targeted therapy. Targeted therapy with poly(ADP ribose) polymerase inhibitors (PARPi) depends on identifying homologous recombination DNA repair (HRR)-defective cancer cells. We aimed to determine the feasibility of assaying HRR status in MPE cells. Methods: A total of 15 MPE samples were collected from consenting patients with non-small-cell lung cancer (NSCLC), mesothelioma and ovarian and breast cancer. Primary cultures were confirmed as epithelial by pancytokeratin, and HRR status was determined by the detection of γH2AX and RAD51 foci following a 24-h exposure to rucaparib, by immunofluorescence microscopy. Massively parallel next-generation sequencing of DNA repair genes was performed on cultured MPE cells. Results: From 15 MPE samples, 13 cultures were successfully established, with HRR function successfully determined in 12 cultures. Four samples – three NSCLC and one mesothelioma – were HRR defective and eight samples – one NSCLC, one mesothelioma, one sarcomatoid, one breast and four ovarian cancers – were HRR functional. No mutations in DNA repair genes were associated with HRR status, but there was probable loss of heterozygosity of FANCG, RPA1 and PARP1. Conclusions: HRR function can be successfully detected in MPE cells demonstrating the potential to stratify patients for targeted therapy with PARPi.
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Affiliation(s)
- M J Patterson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - R E Sutton
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - I Forrest
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - R Sharrock
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - M Lane
- Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 4LP, UK
| | - A Kaufmann
- 1] Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK [2] The Northern Gynaecological Oncology Centre, Queen Elizabeth Hospital, Gateshead Foundation Trust, Gateshead NE9 6SX, UK
| | - R O'Donnell
- 1] Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK [2] The Northern Gynaecological Oncology Centre, Queen Elizabeth Hospital, Gateshead Foundation Trust, Gateshead NE9 6SX, UK
| | - R J Edmondson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - B T Wilson
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - N J Curtin
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Multi-residue quantification of veterinary drugs in milk with a novel extraction and cleanup technique: Salting out supported liquid extraction (SOSLE). Anal Chim Acta 2014; 820:56-68. [DOI: 10.1016/j.aca.2014.02.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 02/20/2014] [Accepted: 02/22/2014] [Indexed: 11/26/2022]
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Gross G, Becker N, Brockmeyer NH, Esser S, Freitag U, Gebhardt M, Gissmann L, Hillemanns P, Grundhewer H, Ikenberg H, Jessen H, Kaufmann A, Klug S, Klußmann JP, Nast A, Pathirana D, Petry KU, Pfister H, Röllinghof U, Schneede P, Schneider A, Selka E, Singer S, Smola S, Sporbeck B, von Knebel Doeberitz M, Wutzler P. Vaccination against HPV-Associated Neoplasias: Recommendations from the Current S3 Guideline of the HPV Management Forum of the Paul-Ehrlich Society - AWMF Guidelines, Registry No. 082-002 (short version), valid until Dec. 31st, 2018. Geburtshilfe Frauenheilkd 2014; 74:233-241. [PMID: 27064858 DOI: 10.1055/s-0033-1360170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- G Gross
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsmedizin, Universität Rostock, Rostock
| | - N Becker
- Deutsches Krebsforschungszentrum (DKFZ), Epidemiologie von Krebserkrankungen (C020), Heidelberg
| | - N H Brockmeyer
- Klinik für Dermatologie und Allergologie der Ruhr-Universität, Bochum
| | - S Esser
- Klinik für Dermatologie und Venerologie, Universitätsklinikum Essen, Essen
| | | | | | - L Gissmann
- Deutsches Krebsforschungszentrum (DKFZ), FS Infektion und Krebs, Heidelberg
| | - P Hillemanns
- Medizinische Hochschule Hannover (MHH), Frauenklinik, Abt. I für Frauenheilkunde und Geburtshilfe, Hannover
| | - H Grundhewer
- Ausschuss Prävention des Berufsverbandes der Kinder- und Jugendärzte (BVKJ), Berlin
| | - H Ikenberg
- MVZ für Zytologie und Molekularbiologie (CytoMol), Frankfurt/M
| | - H Jessen
- Praxis Jessen + Kollegen, Berlin
| | - A Kaufmann
- Gynäkologische Tumorimmunologie, Gynäkologie mit Hochschulambulanz, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - S Klug
- Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden
| | - J P Klußmann
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität Gießen, Gießen
| | - A Nast
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - D Pathirana
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - K U Petry
- Klinikum Wolfsburg, Abteilung Gynäkologische Onkologie, Wolfsburg
| | - H Pfister
- Institut für Virologie der Universität zu Köln
| | | | - P Schneede
- Klinikum Memmingen, Klinik für Urologie, Memmingen
| | - A Schneider
- Klinik und Poliklinik für Gynäkologie, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin
| | - E Selka
- VulvaKarzinom-SHG e. V., Wilhelmshaven
| | - S Singer
- Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Institut für Medizinische Biometrie, Epidemiologie und Informatik, Abt. Epidemiologie und Versorgungsforschung, Mainz
| | - S Smola
- Institut für Virologie, Institut für Infektionsmedizin, Universität des Saarlandes, Homburg/Saar
| | - B Sporbeck
- Division of Evidence Based Medicine (dEBM), Klinik für Dermatologie, Allergologie und Venerologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin
| | - M von Knebel Doeberitz
- Abteilung für Molekulare Pathologie, Pathologisches Institut des Universitätsklinikum Heidelberg, Heidelberg
| | - P Wutzler
- Universitätsklinikum Jena (Friedrich-Schiller-Universität), Institut für Virologie und Antivirale Therapie, Beutenberg Campus, Jena
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Yalcin-Siedentopf N, Hoertnagl CM, Biedermann F, Baumgartner S, Deisenhammer EA, Hausmann A, Kaufmann A, Kemmler G, Mühlbacher M, Rauch AS, Fleischhacker WW, Hofer A. Facial affect recognition in symptomatically remitted patients with schizophrenia and bipolar disorder. Schizophr Res 2014; 152:440-5. [PMID: 24361305 DOI: 10.1016/j.schres.2013.11.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 11/05/2013] [Accepted: 11/12/2013] [Indexed: 10/25/2022]
Abstract
Both schizophrenia and bipolar disorder (BD) have consistently been associated with deficits in facial affect recognition (FAR). These impairments have been related to various aspects of social competence and functioning and are relatively stable over time. However, individuals in remission may outperform patients experiencing an acute phase of the disorders. The present study directly contrasted FAR in symptomatically remitted patients with schizophrenia or BD and healthy volunteers and investigated its relationship with patients' outcomes. Compared to healthy control subjects, schizophrenia patients were impaired in the recognition of angry, disgusted, sad and happy facial expressions, while BD patients showed deficits only in the recognition of disgusted and happy facial expressions. When directly comparing the two patient groups individuals suffering from BD outperformed those with schizophrenia in the recognition of expressions depicting anger. There was no significant association between affect recognition abilities and symptomatic or psychosocial outcomes in schizophrenia patients. Among BD patients, relatively higher depression scores were associated with impairments in both the identification of happy faces and psychosocial functioning. Overall, our findings indicate that during periods of symptomatic remission the recognition of facial affect may be less impaired in patients with BD than in those suffering from schizophrenia. However, in the psychosocial context BD patients seem to be more sensitive to residual symptomatology.
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Affiliation(s)
- Nursen Yalcin-Siedentopf
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria.
| | - Christine M Hoertnagl
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Falko Biedermann
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Susanne Baumgartner
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Eberhard A Deisenhammer
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Armand Hausmann
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Alexandra Kaufmann
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Georg Kemmler
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Moritz Mühlbacher
- Private Medical University Salzburg, Department of Psychiatry and Psychotherapy, Ignaz Harrerstrasse 79, A-5020 Salzburg, Austria
| | - Anna-Sophia Rauch
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - W Wolfgang Fleischhacker
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria; Medical University Innsbruck, Department of Psychiatry and Psychotherapy, General and Social Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Alex Hofer
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Anichstrasse 35, A-6020 Innsbruck, Austria
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Vordermark D, Kaufmann A, Schmidt H, Ostheimer C, Ullrich J, Landenberger M. OC-0568: Quality of life in very elderly radiotherapy patients: prospective study using the new EORTC QLQ-ELD14 module. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30674-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Kaufmann A, Widmer M. Quantitative analysis of polypeptide antibiotic residues in a variety of food matrices by liquid chromatography coupled to tandem mass spectrometry. Anal Chim Acta 2013; 797:81-8. [DOI: 10.1016/j.aca.2013.08.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/15/2013] [Accepted: 08/18/2013] [Indexed: 10/26/2022]
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39
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Kaufmann A, Walker S. Post-run target screening strategy for ultra high performance liquid chromatography coupled to Orbitrap based veterinary drug residue analysis in animal urine. J Chromatogr A 2013; 1292:104-10. [DOI: 10.1016/j.chroma.2012.09.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 08/20/2012] [Accepted: 09/04/2012] [Indexed: 10/27/2022]
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40
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Borràs S, Kaufmann A, Companyó R. Correlation of precursor and product ions in single-stage high resolution mass spectrometry. A tool for detecting diagnostic ions and improving the precursor elemental composition elucidation. Anal Chim Acta 2013; 772:47-58. [DOI: 10.1016/j.aca.2013.02.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/30/2013] [Accepted: 02/08/2013] [Indexed: 10/27/2022]
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41
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Kaufmann A, Walker S. Evaluation of the interrelationship between mass resolving power and mass error tolerances for targeted bioanalysis using liquid chromatography coupled to high-resolution mass spectrometry. Rapid Commun Mass Spectrom 2013; 27:347-356. [PMID: 23239383 DOI: 10.1002/rcm.6454] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/24/2012] [Accepted: 10/25/2012] [Indexed: 06/01/2023]
Abstract
The determination of acceptable mass error tolerances for high-resolution mass spectrometry based signals has been evaluated in a comprehensive way. This was achieved by using a technical approach which is based on the post-column infusion of an analyte containing solution. This well-known experimental setup was not used to spot signal suppression regions of a particular analyte, but to spot regions of the chromatogram where a systematic mass drift of the analyte ion can be observed (isobaric interference plot). Not the changing signal intensity but the stability of the measured analyte mass was observed. A wide range of different analytes in combinations with potentially interfering matrices has been evaluated. Furthermore, different mass resolving power settings were evaluated. Isobaric interferences between matrix compounds and analytes were common at mass resolving powers <50,000 full width at half maximum. The proposed post-column infusion technique is a useful tool for the determination of the assay and matrix-specific mass error tolerances. It aims to ensure the highest possible selectivity, at the same time preventing the encounter of detrimental mass error related peak deformations as well as false negative findings. Unlike conventional matrix spiking approaches, isobaric interference plots provide information of potential interferences across the whole chromatographic time range. This becomes relevant when there is a relative retention time shift between the analyte and potential interfering matrix compounds. Furthermore, the described setup can be used to study how the mass accuracy of any mass spectrometer is affected by a widely varying total ion current.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Kantonales Labor Zürich, Fehrenstrasse 15, 8032 Zürich, Switzerland.
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42
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Kaufmann A, Khazaie K, Wiedemuth M, Rohdeschulz B, Ullrich A, Schirrmacher V, Lichtner R. Expression of epidermal growth-factor receptor correlates with metastatic potential of 13762nf rat mammary adenocarcinoma cells. Int J Oncol 2012; 4:1149-55. [PMID: 21567031 DOI: 10.3892/ijo.4.6.1149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Increased expression of EGFR in metastases of human mammary carcinoma as compared to cells of the primary cancer suggests a contribution of EGFR to mammary carcinoma metastasis. To test for a positive correlation, we investigated 13762NF rat mammary adenocarcinoma cloned tumor cell lines of high (MTLn3) or low (MTC) metastatic potential. While MTC cells expressed barely detectable amounts of EGFR, MTLn3 cells expressed readily detectable levels of receptor. This was demonstrated in Northern blot analysis, in immunoprecipitation studies using metabolically labeled whole cell lysates and in Western blot analysis of membrane fractions. Cross-linking of radiolabeled ligand to intact cells identified on both cell types specific binding to a 170 kd protein, however, at much lower levels on low-metastatic MTC cells and not in sufficient amounts to estimate receptor numbers by Scatchard analysis. In contrast, Scatchard plot analysis of I-125-EGF binding to MTLn3 cells revealed the expression of about 10,000 high and 46,000 low affinity sites. Both cell lines expressed the ligand in comparable amounts as was demonstrated by using a specific rat TGFalpha cDNA probe in Northern blot and an antibody recognising membrane bound TGF in FACS analysis. Adhesion of MTC cells to immobilized collagen or fibronectin was rapid reaching 50% after 30 min while control MTLn3 cells demonstrated lower adhesion to collagen. Addition of 10 ng/ml EGF increased the rate and the maximal adhesion of MTLn3 cells to collagen G, while the adhesion kinetics of MTC cells to collagen G or fibronectin were unaffected.
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Affiliation(s)
- A Kaufmann
- SCHERING AG,RES LABS,D-13342 BERLIN,GERMANY. GERMAN CANC RES CTR,DIV CELLULAR IMMUNOL,D-69120 HEIDELBERG,GERMANY. MAX PLANCK INST BIOCHEM,DEPT MOLEC BIOL,D-82152 MARTINSRIED,GERMANY
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Kaufmann A, Köppel R, Widmer M. Determination of microbial transglutaminase in meat and meat products. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:1364-73. [PMID: 22747363 DOI: 10.1080/19440049.2012.691557] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Transglutaminase is an enzyme that can be used to cross-link pieces of meat, fish or meat products. The resulting product gives the optical impression of an intact chunk of meat. The usage of transglutaminase as a food additive is permitted in some countries. However, its utilisation has to be declared to ensure transparency for consumers. This paper describes two orthogonal analytical methods suited for the detection of technological relevant transglutaminase concentrations (around 25 mg pure enzyme in 1 kg of product) in meat and meat products. The mass spectrometry-based approach relies on a previous digestion with Achromobacter lyticus protease and LC-MS/MS separation and detection. Sufficient selectivity was obtained by monitoring four different peptides. The orthogonal (complementary and independent), ELISA-based approach relies on two commercially available bacterial transglutaminase-specific antibodies, combined to a sandwich ELISA. The two methods were tested by analysing some 60 samples obtained from the market.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority of the Canton of Zurich (Kantonales Laboratorium Zürich), Zurich, Switzerland.
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Kaufmann A, Walker S. Accuracy of relative isotopic abundance and mass measurements in a single-stage orbitrap mass spectrometer. Rapid Commun Mass Spectrom 2012; 26:1081-1090. [PMID: 22467458 DOI: 10.1002/rcm.6195] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Orbitrap technology offers a combination of different technical specifications which have not yet been achieved by other high-resolution mass spectrometry instrumentation. This refers to the combination of sensitivity, dynamic range, mass accuracy, resolution and speed. The high stability of the mass axis and the general ease of use made the orbitrap instrumentation attractive for routine laboratories. However, there are circumstances where significantly deviating relative isotopic abundance (RIA) and shifting accurate masses can be observed. RIA becomes biased at low ion counts. Furthermore, two adjacent, only partially resolved near-isobaric ions are detected with a deviating RIA. The presence of a very intensive mass peak does not only induce Fourier transformation related artefacts (side-lobes) but can cause mass shifts of small adjacent near-isobaric mass peaks. These effects are not as drastic as known for Fourier transform ion cyclotron resonance instruments. Still, users trying to identify or quantify trace level compounds should be aware about such limitations in order to avoid possible pitfalls.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Fehrenstrasse 15, 8032, Zürich, Switzerland.
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Ruf J, Walter P, Kandler H, Kaufmann A. Discovery and structural elucidation of the illegal azo dye Basic Red 46 in sumac spice. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:897-907. [DOI: 10.1080/19440049.2012.667442] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- J. Ruf
- a Official Food Control Authority of the Canton of Thurgau (Kantonales Laboratorium Thurgau) , Spannerstrasse 20 , CH-8510 Frauenfeld , Switzerland
| | - P. Walter
- a Official Food Control Authority of the Canton of Thurgau (Kantonales Laboratorium Thurgau) , Spannerstrasse 20 , CH-8510 Frauenfeld , Switzerland
| | - H. Kandler
- b Official Food Control Authority of the Canton of Zurich (Kantonales Laboratorium Zürich) , PO Box, CH-8030 Zurich , Switzerland
| | - A. Kaufmann
- b Official Food Control Authority of the Canton of Zurich (Kantonales Laboratorium Zürich) , PO Box, CH-8030 Zurich , Switzerland
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Kaufmann A, Butcher P, Maden K. Determination of aminoglycoside residues by liquid chromatography and tandem mass spectrometry in a variety of matrices. Anal Chim Acta 2012; 711:46-53. [DOI: 10.1016/j.aca.2011.10.042] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 10/18/2011] [Accepted: 10/21/2011] [Indexed: 10/15/2022]
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Hofer A, Bodner T, Kaufmann A, Kemmler G, Mattarei U, Pfaffenberger NM, Rettenbacher MA, Trebo E, Yalcin N, Fleischhacker WW. Symptomatic remission and neurocognitive functioning in patients with schizophrenia. Psychol Med 2011; 41:2131-2139. [PMID: 21426601 DOI: 10.1017/s0033291711000353] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND A cross-sectional study was conducted in participants with schizophrenia to explore a potential association between the patients' remission status and neurocognitive functioning and to examine whether these factors have an impact on functional outcome. METHOD Psychopathological symptoms were rated by means of the Positive and Negative Syndrome Scale with symptom remission being assessed by applying the severity component of the recently proposed remission criteria. Tests for the cognitive battery were selected to cover domains known to be impaired in patients with schizophrenia. Next to pre-morbid intelligence, attention performance, executive functioning, verbal fluency, verbal learning and memory, working memory and visual memory were assessed. The joint effect of remission status and neurocognitive functioning on treatment outcome was investigated by logistic regression analysis. RESULTS Out of 140 patients included in the study, 62 were symptomatically remitted. Mean age, education and sex distribution were comparable in remitted and non-remitted patients. Remitted patients showed significantly higher values on tests of verbal fluency, alertness and optical vigilance. Both symptomatic remission as well as performance on tests of working memory and verbal memory had a significant effect on the patients' employment status. CONCLUSIONS In the present study neuropsychological measures of frontal lobe functioning were associated with symptomatic remission from schizophrenia. In addition, both symptomatic remission and performance on tests of working memory and verbal memory had a significant effect on the patients' employment status. Longitudinal follow-up data are needed to determine how the associations of these determinants of functional outcome interact and change over time.
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Affiliation(s)
- A Hofer
- Medical University Innsbruck, Department of Psychiatry and Psychotherapy, Biological Psychiatry Division, Innsbruck, Austria.
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Kaufmann A. Urologische Diagnostik neurogener Blasenfunktionsstörungen. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1275653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Development of an improved high resolution mass spectrometry based multi-residue method for veterinary drugs in various food matrices. Anal Chim Acta 2010; 700:86-94. [PMID: 21742121 DOI: 10.1016/j.aca.2010.11.034] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 11/15/2010] [Accepted: 11/18/2010] [Indexed: 11/17/2022]
Abstract
Multi-residue methods for veterinary drugs or pesticides in food are increasingly often based on ultra performance liquid chromatography (UPLC) coupled to high resolution mass spectrometry (HRMS). Previous available time of flight (TOF) technologies, showing resolutions up to 15,000 full width at half maximum (FWHM), were not sufficiently selective for monitoring low residue concentrations in difficult matrices (e.g. hormones in tissue or antibiotics in honey). The approach proposed in this paper is based on a single stage Orbitrap mass spectrometer operated at 50,000 FWHM. Extracts (liver and kidney) which were produced according to a validated multi-residue method (time of flight detection based) could not be analyzed by Orbitrap because of extensive signal suppression. This required the improvement of established extraction and clean-up procedures. The introduced, more extensive deproteinzation steps and dedicated instrumental settings successfully eliminated these detrimental suppression effects. The reported method, covering more than 100 different veterinary dugs, was validated according to the EU Commission Decision 2002/657/EEC. Validated matrices include muscle, kidney, liver, fish and honey. Significantly better performance parameters (e.g. linearity, reproducibility and detection limits) were obtained when comparing the new method with the older, TOF based method. These improvements are attributed to the higher resolution (50,000 versus 12,000 FWHM) and the superior mass stability of the of the Orbitrap over the previously utilized TOF instrument.
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Affiliation(s)
- A Kaufmann
- Official Food Control Authority, Zürich, Switzerland.
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Rasskazoff S, Silvaggio J, Brouwer PA, Kaufmann A, Nistor A, Iancu D. Endovascular treatment of a ruptured blood blister-like aneurysm with a flow-diverting stent. Interv Neuroradiol 2010; 16:255-8. [PMID: 20977856 DOI: 10.1177/159101991001600304] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Accepted: 06/07/2010] [Indexed: 11/17/2022] Open
Abstract
Treatment of BBAs is currently challenging and remains difficult despite improvement of microsurgical technique and advancement in endovascular technologies. Therapeutic options are reconstructive and deconstructive open surgeries or endovascular procedures. However, there is a lack of consensus about optimal treatment. We report a case of 38-year old woman with subarachnoid hemorrhage due to a ruptured BBA successfully treated with placement of an endovascular flow-diverting stent.
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Affiliation(s)
- S Rasskazoff
- Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
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