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Sternes PR, Brett L, Phipps J, Ciccia F, Kenna T, de Guzman E, Zimmermann K, Morrison M, Holtmann G, Klingberg E, Mauro D, McIvor C, Forsblad-d'Elia H, Brown MA. Distinctive gut microbiomes of ankylosing spondylitis and inflammatory bowel disease patients suggest differing roles in pathogenesis and correlate with disease activity. Arthritis Res Ther 2022; 24:163. [PMID: 35794662 PMCID: PMC9261041 DOI: 10.1186/s13075-022-02853-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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] [Received: 02/21/2022] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Multiple studies have confirmed dysbiosis in ankylosing spondylitis (AS) and inflammatory bowel disease (IBD); however, due to methodological differences across studies, it has not been possible to determine if these diseases have similar or different gut microbiomes. RESULTS In this study, faecal and intestinal biopsies were obtained from 33 Australian AS patients (including 5 with concomitant IBD, 'AS-IBD'), 59 IBD patients and 105 healthy controls. Stool samples were also obtained from 16 Italian AS patients and 136 Swedish AS patients. Focusing on the Australian cohort, AS, AS-IBD and IBD patients differed from one another and from healthy controls in both alpha and beta diversity. AS patients with and without clinical IBD could be distinguished from one another with moderate accuracy using stool microbiome (AUC=0.754). Stool microbiome also accurately distinguished IBD patients from healthy controls (AUC=0.757). Microbiome composition was correlated with disease activity measured by BASDAI and faecal calprotectin (FCP) levels. Enrichment of potentially pathogenic Streptococcus was noted in AS, AS-IBD and IBD patients. Furthermore, enrichment of another potentially pathogenic genus, Haemophilus, was observed in AS, AS-IBD, IBD, AS patients with increased BASDAI, and IBD patients with faecal calprotectin >100 μg/mg. Apart from these genera, no other taxa were shared between AS and IBD patients. CONCLUSIONS In conclusion, the distinct gut microbiome of AS and AS-IBD patients compared to IBD patients and healthy controls is consistent with immunological and genetic evidence suggesting that the gut plays a different role in driving AS compared with IBD. However, enrichment of two potentially pathogenic genera in both diseases suggests that the presence of a shared/common microbial trigger of disease cannot be discounted.
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Affiliation(s)
- P R Sternes
- Centre for Microbiome Research, Queensland University of Technology, Brisbane, Australia.
| | - L Brett
- Department of Gastroenterology, Logan Hospital, Logan, Australia
| | - J Phipps
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - F Ciccia
- Department of Precision Medicine, Università della Campania L. Vanvitelli, Naples, Italy
| | - T Kenna
- Centre for Microbiome Research, Queensland University of Technology, Brisbane, Australia.,Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane, Australia
| | - E de Guzman
- Centre for Microbiome Research, Queensland University of Technology, Brisbane, Australia.,School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - K Zimmermann
- Centre for Immunology and Infection Control, Queensland University of Technology, Brisbane, Australia
| | - M Morrison
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Australia
| | - G Holtmann
- Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, Australia
| | - E Klingberg
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - D Mauro
- Department of Precision Medicine, Università della Campania L. Vanvitelli, Naples, Italy
| | - C McIvor
- Department of Gastroenterology, Logan Hospital, Logan, Australia
| | - H Forsblad-d'Elia
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - M A Brown
- Genomics England, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
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Laukhtina E, Schuettfort V, D`Andrea D, Pradere B, Mori K, Quhal F, Sari Motlagh R, Mostafaei H, Katayama S, Grossmann N, Rajwa P, Abufaraj M, Moschini M, Zimmermann K, Karakiewicz P, Fajkovic H, Scherr D, Compérat E, Nyirady P, Rink M, Enikeev D, Shariat S. Preoperative plasma level of endoglin as a predictor for disease outcomes after radical cystectomy for non-metastatic urothelial carcinoma of the bladder. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03225-0] [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: 11/30/2022] Open
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3
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Timotijevic L, Astley S, Bogaardt M, Bucher T, Carr I, Copani G, de la Cueva J, Eftimov T, Finglas P, Hieke S, Hodgkins C, Koroušić Seljak B, Klepacz N, Pasch K, Maringer M, Mikkelsen B, Normann A, Ofei K, Poppe K, Pourabdollahian G, Raats M, Roe M, Sadler C, Selnes T, van der Veen H, van’t Veer P, Zimmermann K. Designing a research infrastructure (RI) on food behaviour and health: Balancing user needs, business model, governance mechanisms and technology. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.022] [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: 10/20/2022]
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Rajwa P, Schuettfort V, Quhal F, Mori K, Katayama S, Laukhtina E, Motlagh R, Mostafaei H, Pradere B, Grossmann N, Aulitzky A, Paradysz A, Karakiewicz P, Fajkovic H, Zimmermann K, Heidenreich A, Gontero P, Shariat S. Role of systemic immune-inflammation index in patients treated with salvage radical prostatectomy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01558-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schwarze M, Zimmermann K, Hollo DF, Schiltenwolf M. [Incorrect occupancy in (partial) inpatient pain treatment-a frequent reason for assessment]. Orthopade 2021; 50:70-74. [PMID: 33270139 DOI: 10.1007/s00132-020-04046-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- M Schwarze
- Klinik für Orthopädie und Unfallchirurgie, Zentrum für Orthopädie, Unfallchirurgie und Paraplegiologie, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland.
| | - K Zimmermann
- Klinik für Orthopädie und Unfallchirurgie, Zentrum für Orthopädie, Unfallchirurgie und Paraplegiologie, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
| | | | - M Schiltenwolf
- Klinik für Orthopädie und Unfallchirurgie, Zentrum für Orthopädie, Unfallchirurgie und Paraplegiologie, Universitätsklinikum Heidelberg, Schlierbacher Landstraße 200a, 69118, Heidelberg, Deutschland
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Hammermüller C, Hinz A, Dietz A, Wichmann G, Pirlich M, Berger T, Zimmermann K, Neumuth T, Mehnert-Theuerkauf A, Wiegand S, Zebralla V. Depression, anxiety, fatigue, and quality of life in a large sample of patients suffering from head and neck cancer in comparison with the general population. BMC Cancer 2021; 21:94. [PMID: 33482771 PMCID: PMC7825198 DOI: 10.1186/s12885-020-07773-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [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] [Received: 09/02/2020] [Accepted: 12/26/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Treatment of head and neck cancer (HNC) often leads to visible and severe functional impairments. In addition, patients often suffer from a variety of psychosocial problems, significantly associated with a decreased quality of life. We aimed to compare depression, anxiety, fatigue and quality of life (QoL) between HNC patients and a large sample of the general population in Germany and to examine the impact of sociodemographic, behavioral and clinical factors on these symptoms. METHODS We assessed data of HNC patients during the aftercare consultation at the Leipzig University Medical Center with a patient reported outcome (PRO) tool named "OncoFunction". Depression, anxiety, fatigue and QoL were assessed using validated outcome measures including the PHQ-9, the GAD-2, and the EORTC QLQ-C30 questionnaire. RESULTS A total of 817 HNC patients were included in our study and compared to a sample of 5018 individuals of the general German population. HNC patients showed significantly higher levels of impairment in all dimensions assessed. Examination of association between depression, anxiety, fatigue and QoL and clinical as well as sociodemographic variables showed significant relationships between occupational status, ECOG-state, body mass index and time since diagnosis. CONCLUSIONS HNC patients suffer significantly from psychological distress. The used questionnaires are suitable for the use in daily routine practice and can be helpful to increase the detection of depression, anxiety and fatigue and therefore can improve HNC aftercare.
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Affiliation(s)
- C Hammermüller
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - A Hinz
- Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany
| | - A Dietz
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - G Wichmann
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - M Pirlich
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - T Berger
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - K Zimmermann
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - T Neumuth
- Innovation Center Computer Assisted Surgery (ICCAS), University of Leipzig, Leipzig, Germany
| | - A Mehnert-Theuerkauf
- Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany
| | - S Wiegand
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany
| | - V Zebralla
- Clinic of Otolaryngology, Head and Neck Surgery, University of Leipzig, Leipzig, Germany.
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Mellert K, Benckendorff J, Leithäuser F, Zimmermann K, Wiegand P, Frascaroli G, Buck M, Malaise M, Hartmann G, Barchet W, Fürst D, Mytilineos J, Mayer-Steinacker R, Viardot A, Möller P. U-DCS: characterization of the first permanent human dendritic sarcoma cell line. Sci Rep 2020; 10:21221. [PMID: 33277516 PMCID: PMC7718904 DOI: 10.1038/s41598-020-77471-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/21/2020] [Indexed: 11/09/2022] Open
Abstract
A dendritic cell sarcoma cell line, U-DCS, was established from a dendritic cell sarcoma in a 53-year-old Caucasian male patient. Since its establishment, U-DCS has maintained stable phenotypic characteristics in vitro and has a doubling time of approximately 2 days under standard culture conditions. U-DCS is growing with typical dendritic cell morphology in tissue and expresses the dendritic cell sarcoma immunophenotypic markers S100 protein, MHCI, MHCII, and vimentin. Expression analysis revealed transcripts for the toll-like receptors TLR3, -4, -9 and DDX58 (RIG-I), but not for TLR2. U-DCS shows functional features of dendritic cells with the ability of phagocytosis and antigen-specific T cell stimulation. Karyotype-, CGH-, and mFISH analysis point to a chromosomal instability and a hypotetraploid karyotype with approximately 130 chromosomes. U-DCS is the first immortalized human dendritic cell sarcoma cell line and has some morphological and functional features of dendritic cells without dependency on growth factors.
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Affiliation(s)
- Kevin Mellert
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Julian Benckendorff
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Frank Leithäuser
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Katarzyna Zimmermann
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Peter Wiegand
- Institute for Forensic Medicine, University Hospital Ulm, Ulm, Germany
| | | | - Michaela Buck
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Muriel Malaise
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University of Regensburg, Regensburg, Germany
| | - Gunther Hartmann
- Institute for Clinical Chemistry and Pharmacology, University of Bonn, Bonn, Germany
| | - Winfried Barchet
- Institute for Clinical Chemistry and Pharmacology, University of Bonn, Bonn, Germany
| | - Daniel Fürst
- Institute of Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service, Baden Württemberg-Hessen, Ulm, Germany
| | - Joannis Mytilineos
- Institute of Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service, Baden Württemberg-Hessen, Ulm, Germany
| | | | - Andreas Viardot
- Department of Internal Medicine 3, University Hospital Ulm, Ulm, Germany
| | - Peter Möller
- Institute of Pathology, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
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8
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Wassenaar TM, Zimmermann K. How industrial bacterial cultures can be kept stable over time. Lett Appl Microbiol 2020; 71:220-228. [PMID: 32379347 PMCID: PMC7496531 DOI: 10.1111/lam.13309] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 12/22/2022]
Abstract
The tremendous variation that exists between bacterial species illustrates the power of evolution, which is the continuous process of mutation and selection over time. Even within a bacterial species, individual members can harbour an impressive degree of genetic variation, depending on the species. The question then arises how similar the offspring of a given bacterial cell over time is, and how long it takes before differences are noticeable? Here we show that on the one hand one can expect random mutations to arise, as a result of various mechanisms. On the other hand, there are forces at play that keep the offspring of a cell genetically relatively constant, unless there is selection for a particular characteristic. The most common mechanisms behind mutations that can appear in a bacterial population are briefly introduced. Next, it is explained why nevertheless such mutations are rarely observed, as long as single colonies are randomly selected, unless selective pressures apply. Since quality control of industrial bacterial cultures is likely to depend heavily on genome sequencing in the near future, the accuracy of whole‐genomic sequencing technologies is also discussed. It can be concluded that the bacteriologists who started picking single colonies from agar plates more than hundred years ago were unknowingly ingeneous, as their practice maintains a bacterial culture stable over time. Significance and Impact of Study The questions addressed here are relevant for industries that depend on live bacteria for (manufacturing of) their products, as they have to guard their bacterial cultures that remain unchanged over time. The explanation why randomly selection of single colonies keeps a population stable can be of use in bacteriology courses. The limitations of whole‐genome sequencing are relevant to legislators to avoid overinterpretation of those data.
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Affiliation(s)
- T M Wassenaar
- Molecular Microbiology and Genomics Consultants, Zotzenheim, Germany
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9
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Fussbroich D, Colas RA, Eickmeier O, Trischler J, Jerkic SP, Zimmermann K, Göpel A, Schwenger T, Schaible A, Henrich D, Baer P, Zielen S, Dalli J, Beermann C, Schubert R. A combination of LCPUFA ameliorates airway inflammation in asthmatic mice by promoting pro-resolving effects and reducing adverse effects of EPA. Mucosal Immunol 2020; 13:481-492. [PMID: 31907365 PMCID: PMC7181394 DOI: 10.1038/s41385-019-0245-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 09/28/2018] [Revised: 11/24/2019] [Accepted: 12/02/2019] [Indexed: 02/04/2023]
Abstract
Lipid mediators derived from omega (n)-3 and n-6 long-chain polyunsaturated fatty acids (LCPUFA) play key roles in bronchoconstriction, airway inflammation, and resolution processes in asthma. This study compared the effects of dietary supplementation with either a combination of LCPUFAs or eicosapentaenoic acid (EPA) alone to investigate whether the combination has superior beneficial effects on the outcome of asthmatic mice. Mice were sensitized with house dust mite (HDM) extract, and subsequently supplemented with either a combination of LCPUFAs or EPA alone in a recall asthma model. After the final HDM and LCPUFA administration, airway hyperresponsiveness (AHR), bronchoalveolar lavages, and lung histochemistry were examined. Lipid mediator profiles were determined by liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS). The LCPUFA combination reduced AHR, eosinophilic inflammation, and inflammatory cytokines (IL-5, IFN-γ, and IL-6) in asthmatic mice, whereas EPA enhanced inflammation. The combination of LCPUFAs was more potent in downregulating EPA-derived LTB5 and LTC5 and in supporting DHA-derived RvD1 and RvD4 (2.22-fold and 2.58-fold higher levels) than EPA alone. Ex vivo experiments showed that LTB5 contributes to granulocytes' migration and M1-polarization in monocytes. Consequently, the LCPUFA combination ameliorated airway inflammation by inhibiting adverse effects of EPA and promoting pro-resolving effects supporting the lipid mediator-dependent resolution program.
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Affiliation(s)
- D. Fussbroich
- grid.430588.2Department of Food Technology, University of Applied Sciences Fulda, Fulda, Germany ,0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany ,0000 0004 1936 9721grid.7839.5Faculty of Biological Sciences, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - R. A. Colas
- 0000 0001 2171 1133grid.4868.2Lipid Mediator Unit, William Harvey Research Institute, Bart’s and the London School of Medicine, Queen Mary University of London, London, UK
| | - O. Eickmeier
- 0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany
| | - J. Trischler
- 0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany
| | - S. P. Jerkic
- 0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany
| | - K. Zimmermann
- grid.430588.2Department of Food Technology, University of Applied Sciences Fulda, Fulda, Germany
| | - A. Göpel
- grid.430588.2Department of Food Technology, University of Applied Sciences Fulda, Fulda, Germany
| | - T. Schwenger
- grid.430588.2Department of Food Technology, University of Applied Sciences Fulda, Fulda, Germany
| | - A. Schaible
- 0000 0004 1936 9721grid.7839.5Department of Trauma, Hand & Reconstructive Surgery, Goethe-University, Frankfurt/Main, Germany
| | - D. Henrich
- 0000 0004 1936 9721grid.7839.5Department of Trauma, Hand & Reconstructive Surgery, Goethe-University, Frankfurt/Main, Germany
| | - P. Baer
- 0000 0004 1936 9721grid.7839.5Division of Nephrology, Department of Internal Medicine III, Goethe-University, Frankfurt/Main, Germany
| | - S. Zielen
- 0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany
| | - J. Dalli
- 0000 0001 2171 1133grid.4868.2Lipid Mediator Unit, William Harvey Research Institute, Bart’s and the London School of Medicine, Queen Mary University of London, London, UK ,0000 0001 2171 1133grid.4868.2Centre for inflammation and Therapeutic Innovation, Queen Mary University of London, London, UK
| | - C. Beermann
- grid.430588.2Department of Food Technology, University of Applied Sciences Fulda, Fulda, Germany
| | - R. Schubert
- 0000 0004 1936 9721grid.7839.5Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe-University, Frankfurt/Main, Germany
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Gavalec M, Ponce D, Zimmermann K. Steady states in the scheduling of discrete-time systems. Inf Sci (N Y) 2019. [DOI: 10.1016/j.ins.2018.12.067] [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: 11/16/2022]
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Fussbroich D, Zimmermann K, Göpel A, Eickmeier O, Trischler J, Zielen S, Schubert R, Beermann C. A specific combined long-chain polyunsaturated fatty acid supplementation reverses fatty acid profile alterations in a mouse model of chronic asthma. Lipids Health Dis 2019; 18:16. [PMID: 30658644 PMCID: PMC6339374 DOI: 10.1186/s12944-018-0947-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 12/17/2018] [Indexed: 12/31/2022] Open
Abstract
Background The immune-modulating potential of long-chain polyunsaturated fatty acids (LCPUFAs) based on their conversion into lipid mediators in inflammatory situations has been proven by several studies. Respecting the immune-modulative role of lipid mediators in bronchoconstriction, airway inflammation and resolution of inflammatory processes, LCPUFAs play an important role in asthma. To design a disease-specific and most beneficial LCPUFA supplementation strategy, it is essential to understand how asthma alters LCPUFA profiles. Therefore, this study characterizes the alterations of LCPUFA profiles induced by allergic asthma. In addition, this study explores whether a simple eicosapentaenoic acid (EPA) alone or a specific combined LCPUFA supplementation could restore imbalanced LCPUFA profiles. Methods Mice were sensitized with a daily dose of 40 μg house dust mite (HDM)-extract in a recall model and fed with either normal diet, EPA or a specific combined (sc)-LCPUFA supplementation containing EPA, docosahexaenoic acid (DHA), γ -linolenic acid (GLA) and stearidonic acid (SDA) for 24 days. After recall with HDM, mice were sacrificed and blood and lung tissue were collected. Fatty acid profiles were determined in plasma, blood cells and lung cells of asthmatic mice by capillary gas-chromatography. Results In lung cells of asthmatic mice, arachidonic acid (AA, p < 0.001) and DHA (p < 0.01) were increased while dihomo-γ-linolenic acid (DGLA, p < 0.05) was decreased. EPA supplementation increased only EPA (p < 0.001) and docosapentaenoic acid (DPA, p < 0.001), but neither DGLA nor DHA in lung cells of asthmatic mice. In contrast, a specific combined dietary supplementation containing n-3 and n-6 LCPUFAs could decrease AA (p < 0.001), increase EPA (p < 0.001), DPA (p < 0.001) and DHA (p < 0.01) and could reverse the lack of DGLA (p < 0.05). Conclusions In summary, allergic asthma alters LCPUFA profiles in blood and lung tissue. In contrast to the EPA supplementation, the distinct combination of n-3 and n-6 LCPUFAs restored the LCPUFA profiles in lung tissue of asthmatic mice completely. Subsequently, sc-LCPUFA supplementation is likely to be highly supportive in limiting and resolving the inflammatory process in asthma. Electronic supplementary material The online version of this article (10.1186/s12944-018-0947-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- D Fussbroich
- Department of Food Technology, University of Applied Science Fulda, Leipziger Str. 123, 36039, Fulda, Germany. .,Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe University, Theodor-Stern-Kai 7, Frankfurt/Main, Germany. .,Faculty of Biological Sciences, Goethe University, Max-von-Laue-Straße 13, Frankfurt/Main, Germany.
| | - K Zimmermann
- Department of Food Technology, University of Applied Science Fulda, Leipziger Str. 123, 36039, Fulda, Germany
| | - A Göpel
- Department of Food Technology, University of Applied Science Fulda, Leipziger Str. 123, 36039, Fulda, Germany
| | - O Eickmeier
- Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe University, Theodor-Stern-Kai 7, Frankfurt/Main, Germany
| | - J Trischler
- Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe University, Theodor-Stern-Kai 7, Frankfurt/Main, Germany
| | - S Zielen
- Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe University, Theodor-Stern-Kai 7, Frankfurt/Main, Germany
| | - R Schubert
- Division for Allergy, Pneumology and Cystic Fibrosis, Department for Children and Adolescence, Goethe University, Theodor-Stern-Kai 7, Frankfurt/Main, Germany
| | - C Beermann
- Department of Food Technology, University of Applied Science Fulda, Leipziger Str. 123, 36039, Fulda, Germany
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Bogaardt MJ, Geelen A, Zimmermann K, Finglas P, Raats MM, Mikkelsen BE, Poppe KJ, van't Veer P. Designing a research infrastructure on dietary intake and its determinants. NUTR BULL 2018. [DOI: 10.1111/nbu.12342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - A. Geelen
- Wageningen University; Wageningen The Netherlands
| | - K. Zimmermann
- Wageningen Economic Research; The Hague The Netherlands
| | - P. Finglas
- Quadram Institute Bioscience; Norwich UK
| | | | | | - K. J. Poppe
- Wageningen Economic Research; The Hague The Netherlands
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Scheer CS, Fuchs C, Gründling M, Vollmer M, Bast J, Bohnert JA, Zimmermann K, Hahnenkamp K, Rehberg S, Kuhn SO. Impact of antibiotic administration on blood culture positivity at the beginning of sepsis: a prospective clinical cohort study. Clin Microbiol Infect 2018; 25:326-331. [PMID: 29879482 DOI: 10.1016/j.cmi.2018.05.016] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [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: 03/15/2018] [Revised: 05/09/2018] [Accepted: 05/12/2018] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Sepsis guidelines recommend obtaining blood cultures before starting anti-infective therapy in patients with sepsis. However, little is known of how antibiotic treatment before sampling affects bacterial growth. The aim of this study was to compare the results of blood cultures drawn before and during antibiotic therapy. METHODS Prospective clinical cohort study of septic patients. Adult intensive care unit patients with two or three blood culture sets at the beginning of sepsis between 2010 and 2017 were included. Patients with blood culture samples obtained before antibiotic therapy were compared with patients with samples taken during antibiotic therapy. Blood culture positivity, defined as presence of a microbiological pathogen, was compared between the groups. Logistic regression was performed to adjust the impact of different factors with respect to blood culture positivity. RESULTS In total, 559 patients with 1364 blood culture sets at the beginning of sepsis were analysed. Blood culture positivity was 50.6% (78/154) among patients with sepsis who did not receive antibiotics and only 27.7% (112/405) in those who were already receiving antibiotics (p <0.001). Logistic regression revealed antibiotic therapy as an independent factor for less pathogen identification (odds ratio 0.4; 95% CI 0.3-0.6). Gram-positive pathogens (28.3% (111/392) versus 11.9% (116/972); p <0.001) and also Gram-negative pathogens (16.3% (64/392) versus 9.3% (90/972); p <0.001) were more frequent in blood culture sets drawn before antibiotic therapy compared with sets obtained during antibiotic therapy. CONCLUSIONS Obtaining blood cultures during antibiotic therapy is associated with a significant loss of pathogen detection. This strongly emphasizes the current recommendation to obtain blood cultures before antibiotic administration in patients with sepsis.
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Affiliation(s)
- C S Scheer
- Department of Anesthesiology, University Hospital Greifswald, Germany.
| | - C Fuchs
- Department of Anesthesiology, University Hospital Greifswald, Germany
| | - M Gründling
- Department of Anesthesiology, University Hospital Greifswald, Germany
| | - M Vollmer
- Institute of Bioinformatics, University Hospital Greifswald, Germany
| | - J Bast
- Medical Faculty, University of Greifswald, Germany
| | - J A Bohnert
- Friedrich Loeffler Institute of Medical Microbiology, University Hospital Greifswald, Germany
| | - K Zimmermann
- Friedrich Loeffler Institute of Medical Microbiology, University Hospital Greifswald, Germany
| | - K Hahnenkamp
- Department of Anesthesiology, University Hospital Greifswald, Germany
| | - S Rehberg
- Department of Anesthesiology, University Hospital Greifswald, Germany
| | - S-O Kuhn
- Department of Anesthesiology, University Hospital Greifswald, Germany.
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Muchitsch EM, Turecek PL, Zimmermann K, Pichler L, Auer W, Richter G, Gritsch H, Schwarz HP. Phenotypic Expression of Murine Hemophilia. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614401] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kadala A, Sotelo-Hitschfeld P, Ahmad Z, Tripal P, Schmid B, Mueller A, Bernal L, Winter Z, Brauchi S, Lohbauer U, Messlinger K, Lennerz JK, Zimmermann K. Fluorescent Labeling and 2-Photon Imaging of Mouse Tooth Pulp Nociceptors. J Dent Res 2017; 97:460-466. [PMID: 29130364 DOI: 10.1177/0022034517740577] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 11/15/2022] Open
Abstract
Retrograde fluorescent labeling of dental primary afferent neurons (DPANs) has been described in rats through crystalline fluorescent DiI, while in the mouse, this technique was achieved with only Fluoro-Gold, a neurotoxic fluorescent dye with membrane penetration characteristics superior to the carbocyanine dyes. We reevaluated this technique in the rat with the aim to transfer it to the mouse because comprehensive physiologic studies require access to the mouse as a model organism. Using conventional immunohistochemistry, we assessed in rats and mice the speed of axonal dye transport from the application site to the trigeminal ganglion, the numbers of stained DPANs, and the fluorescence intensity via 1) conventional crystalline DiI and 2) a novel DiI formulation with improved penetration properties and staining efficiency. A 3-dimensional reconstruction of an entire trigeminal ganglion with 2-photon laser scanning fluorescence microscopy permitted visualization of DPANs in all 3 divisions of the trigeminal nerve. We quantified DPANs in mice expressing the farnesylated enhanced green fluorescent protein (EGFPf) from the transient receptor potential cation channel subfamily M member 8 (TRPM8EGFPf/+) locus in the 3 branches. We also evaluated the viability of the labeled DPANs in dissociated trigeminal ganglion cultures using calcium microfluorometry, and we assessed the sensitivity to capsaicin, an agonist of the TRPV1 receptor. Reproducible DiI labeling of DPANs in the mouse is an important tool 1) to investigate the molecular and functional specialization of DPANs within the trigeminal nociceptive system and 2) to recognize exclusive molecular characteristics that differentiate nociception in the trigeminal system from that in the somatic system. A versatile tool to enhance our understanding of the molecular composition and characteristics of DPANs will be essential for the development of mechanism-based therapeutic approaches for dentine hypersensitivity and inflammatory tooth pain.
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Affiliation(s)
- A Kadala
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - P Sotelo-Hitschfeld
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
- 2 Instituto de Fisiología, Facultad de Medicina, Escuela de Graduados, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Z Ahmad
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - P Tripal
- 3 Optical Imaging Centre Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - B Schmid
- 3 Optical Imaging Centre Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - A Mueller
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - L Bernal
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Z Winter
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - S Brauchi
- 2 Instituto de Fisiología, Facultad de Medicina, Escuela de Graduados, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - U Lohbauer
- 4 Klinik für Zahnerhaltung und Parodontologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - K Messlinger
- 5 Institut für Physiologie und Pathophysiologie, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - J K Lennerz
- 6 Center for Integrated Diagnostics, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - K Zimmermann
- 1 Klinik für Anästhesiologie, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
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Belle F, Wenke-Zobler J, Cignacco E, Ammann R, Kuehni C, Zimmermann K. OR50: Overweight in Childhood Cancer Patients at Diagnosis and Throughout Therapy: A Multicentre Cohort Study. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30737-9] [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: 11/28/2022]
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17
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Noyan F, Zimmermann K, Hardtke-Wolenski M, Knoefel A, Schulde E, Geffers R, Hust M, Huehn J, Galla M, Morgan M, Jokuszies A, Manns MP, Jaeckel E. Prevention of Allograft Rejection by Use of Regulatory T Cells With an MHC-Specific Chimeric Antigen Receptor. Am J Transplant 2017; 17:917-930. [PMID: 27997080 DOI: 10.1111/ajt.14175] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [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: 10/16/2016] [Revised: 12/02/2016] [Accepted: 12/07/2016] [Indexed: 01/25/2023]
Abstract
CD4+ CD25high FOXP3+ regulatory T cells (Tregs) are involved in graft-specific tolerance after solid organ transplantation. However, adoptive transfer of polyspecific Tregs alone is insufficient to prevent graft rejection even in rodent models, indicating that graft-specific Tregs are required. We developed a highly specific chimeric antigen receptor that recognizes the HLA molecule A*02 (referred to as A2-CAR). Transduction into natural regulatory T cells (nTregs) changes the specificity of the nTregs without alteration of their regulatory phenotype and epigenetic stability. Activation of nTregs via the A2-CAR induced proliferation and enhanced the suppressor function of modified nTregs. Compared with nTregs, A2-CAR Tregs exhibited superior control of strong allospecific immune responses in vitro and in humanized mouse models. A2-CAR Tregs completely prevented rejection of allogeneic target cells and tissues in immune reconstituted humanized mice in the absence of any immunosuppression. Therefore, these modified cells have great potential for incorporation into clinical trials of Treg-supported weaning after allogeneic transplantation.
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Affiliation(s)
- F Noyan
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Center, Transplantation (IFB-Tx), Hannover Medical School, Hannover, Germany
| | - K Zimmermann
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - M Hardtke-Wolenski
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - A Knoefel
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - E Schulde
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - R Geffers
- RG of Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - M Hust
- Department of Biotechnology, Institute for Biochemistry, Biotechnology and Bioinformatics, Technische Universität Braunschweig, Braunschweig, Germany
| | - J Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - M Galla
- Institute of Experimental Haematology, Hannover Medical School, Hannover, Germany
| | - M Morgan
- Institute of Experimental Haematology, Hannover Medical School, Hannover, Germany
| | - A Jokuszies
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Hannover, Germany
| | - M P Manns
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - E Jaeckel
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Center, Transplantation (IFB-Tx), Hannover Medical School, Hannover, Germany
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Kaden H, Zimmermann K, Hofmann H. Zur Charakterisierung des Porenaufbaus von Asbestfilterschichten durch elektrische Leitfähigkeitsmessungen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1981-26265] [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: 11/15/2022]
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Belle F, Schindler M, Sommer G, Kasteler R, Kuonen R, Bochud M, Zimmermann K, Ammann R, Kuehni C. SUN-P215: Overweight and Obesity in Swiss Childhood Leukaemia Survivors. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30558-1] [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: 10/21/2022]
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Landerer J, Damm M, Caca K, Zimmermann K, Merk T. Fallbericht: Vom metastasierten Tumor zur isolierten Tuberkulose. Pneumologie 2016. [DOI: 10.1055/s-0036-1572219] [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: 10/22/2022]
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Engelbrecht B, Klein A, Breitbach M, Parikh A, Lee J, Zimmermann K, Ottersbach A, Dürr D, Welz A, Pfeifer A, Salama G, Kotlikoff M, Fleischmann B, Röll W. Long-term Reduction of Post-infarct Ventricular Tachycardia by Direct Lentiviral Connexin 43 Gene Transfer. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571559] [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: 10/22/2022]
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Mayer P, Zilleßen P, Harst A, Celner J, Zimmermann K, Pfeifer A, Racké K. Expression und Freisetzung von DPP4 in humanen subkutanen Präadipozyten und Adipozyten. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549597] [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: 10/23/2022]
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Kaspar F, Zimmermann K, Polte-Rudolf C. An overview of the phenological observation network and the phenological database of Germany's national meteorological service (Deutscher Wetterdienst). Adv Sci Res 2015. [DOI: 10.5194/asr-11-93-2014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. First phenological observations have been performed in Germany already in the 18th century. The onset dates of characteristic phases of plant development (phenological phases) are observed and recorded. Today, Germany's national meteorological service (Deutscher Wetterdienst, DWD) maintains a dense phenological observation network and a database with phenological observations. The data are used in many applications, esp. for advisory activities to agriculture or pollen dispersion information.
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Kruijff G, Kruijff-Korbayová I, Keshavdas S, Larochelle B, Janíček M, Colas F, Liu M, Pomerleau F, Siegwart R, Neerincx M, Looije R, Smets N, Mioch T, van Diggelen J, Pirri F, Gianni M, Ferri F, Menna M, Worst R, Linder T, Tretyakov V, Surmann H, Svoboda T, Reinštein M, Zimmermann K, Petříček T, Hlaváč V. Designing, developing, and deploying systems to support human–robot teams in disaster response. Adv Robot 2014. [DOI: 10.1080/01691864.2014.985335] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Zimmermann K. 16. How sodium channel activator ciguatoxins cause burning pain from cooling. Toxicon 2014. [DOI: 10.1016/j.toxicon.2014.08.024] [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: 11/29/2022]
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Wassenaar T, Beimfohr C, Geske T, Zimmermann K. Voluntarily exposure to a single, high dose of probiotic Escherichia coli results in prolonged colonisation. Benef Microbes 2014; 5:367-75. [DOI: 10.3920/bm2013.0087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The ability of probiotic Escherichia coli to colonise the human gut was determined in a volunteer study following national (German) regulations. Five persons voluntarily took a single, high dose of Symbioflor®2, which contains 6 different probiotic E. coli genotypes, to assess tolerance of the product, after which presence of E. coli in their faeces was tested for a follow-up period of 30 weeks. Intake of the product did not result in severe side effect in any of the individuals, though mild side effects were observed. Stool analysis showed that the probiotic E. coli had colonised all five persons for a period of 10 to 30 weeks (mean: 18.7 weeks, median: 25.7 weeks). In two individuals there was evidence of competition between host E. coli and probiotic E. coli, while in two others total E. coli levels increased persistently with at least a factor of 10 as a result of the received dose. In one individual, who had lacked detectable levels of faecal E. coli at the start of the post-authorisation safety study, long-term colonisation was established, first by probiotic E. coli exclusively, which were later replaced by host E. coli strains. In four out of five individuals, total E. coli faecal counts were higher on average than at the start of the experiment, while in none total levels exceeded 5×107 cfu/g. When the specific genotypes of the 6 probiotic E. coli were analysed, it was found that one and the same common genotype was responsible for prolonged colonisation in all five individuals.
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Affiliation(s)
- T.M. Wassenaar
- Molecular Microbiology and Genomics Consultants, Tannenstrasse 7, 55576 Zotzenheim, Germany
| | - C. Beimfohr
- Vermicon AG, Emmy-Noether-Straße 2, 80992 München, Germany
| | - T. Geske
- Medical Services, Hennigsdorfer Str. 141S, 13503 Berlin, Germany
| | - K. Zimmermann
- SymbioPharm GmbH, Auf den Lüppen 8, 35745 Herborn, Germany
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Enck P, Zimmermann K, Menke G, Klosterhalfen S. Randomized Controlled Treatment Trial of Irritable Bowel Syndrome with a Probiotic E.-coli Preparation (DSM17252) Compared to Placebo. Z Gastroenterol 2014; 52:64. [PMID: 24964039 DOI: 10.1055/s-0034-1366796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- P Enck
- Internal Medicine VI, University Medical Hospital, Tübingen
| | | | - G Menke
- PAZ Arzneimittel-Entwicklungsgesellschaft mbH, Frankfurt/M
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Pullwitt A, Leichsenring G, Zimmermann K, Schnabel J. Systemische Methotrexat Therapie bei intramuraler Schwangerschaft – Fallbericht. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1376466] [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: 10/25/2022] Open
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Zilleßen P, Harst A, Celner J, Zimmermann K, Pfeifer A, Racké K, Mayer P. Die Rolle der Dipeptidyl-Peptidase 4 in humanen weißen subkutanen Präadipozyten. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1374885] [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: 10/25/2022]
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Ottersbach A, Zimmermann K, Mykhaylyk O, Gleich B, Plank C, Bloch W, Pfeifer A, Welz A, Fleischmann B, Röll W. Site-specific positioning of magnetic nanoparticle (MNP) loaded progenitors improves survival of the grafted cells and long-term myocardial function upon myocardial infarction. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367202] [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: 10/25/2022]
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Kruijff GJM, Janíček M, Keshavdas S, Larochelle B, Zender H, Smets NJJM, Mioch T, Neerincx MA, Diggelen JV, Colas F, Liu M, Pomerleau F, Siegwart R, Hlaváč V, Svoboda T, Petříček T, Reinstein M, Zimmermann K, Pirri F, Gianni M, Papadakis P, Sinha A, Balmer P, Tomatis N, Worst R, Linder T, Surmann H, Tretyakov V, Corrao S, Pratzler-Wanczura S, Sulk M. Experience in System Design for Human-Robot Teaming in Urban Search and Rescue. Springer Tracts in Advanced Robotics 2014. [DOI: 10.1007/978-3-642-40686-7_8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Hill M, Hirschberger J, Zimmermann K, Dörfelt R, Reese S, Wergin M. [Quality of life in primary and adjuvant veterinary radiation therapy. An owner survey]. Tierarztl Prax Ausg K Kleintiere Heimtiere 2014; 42:157-165. [PMID: 24920142] [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] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 02/05/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE External radiation therapy has been available since 2011 for small animals at the University of Munich. The aim of the study was to evaluate the quality of life of treated pets and the satisfaction of their owners. MATERIAL AND METHODS The questionnaire was sent to the owners of all the pets (n = 91) that had undergone primary or adjuvant radiotherapy at the Clinic of Small Animal Medicine, University of Munich, since April 2011. RESULTS The questionnaire was returned by 68 (74.7%) owners. According to their assessment, the quality of life improved in 41 cases (60.3%) after treatment where- as in 13 patients (19.1%) a decline was described. The majority of owners (88.2%) would have decided for repeated radiation therapy. CONCLUSION Improvement of the animals' quality of life is related to a high satisfaction (83.8%) of the owners (p = 0.003) and their positive attitude towards radiotherapy (p = 0.027). CLINICAL RELEVANCE Analyses showed that for these owners, the treatment was a worthwhile therapy despite it requiring much time and money.
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Affiliation(s)
- M Hill
- Melanie Hill, Medizinische Kleintierklinik, der Ludwig-Maximilians-Universität München, Veterinärstraße 13, 80539 München, E-Mail:
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Skarzynski H, van de Heyning P, Agrawal S, Arauz SL, Atlas M, Baumgartner W, Caversaccio M, de Bodt M, Gavilan J, Godey B, Green K, Gstoettner W, Hagen R, Han DM, Kameswaran M, Karltorp E, Kompis M, Kuzovkov V, Lassaletta L, Levevre F, Li Y, Manikoth M, Martin J, Mlynski R, Mueller J, O'Driscoll M, Parnes L, Prentiss S, Pulibalathingal S, Raine CH, Rajan G, Rajeswaran R, Rivas JA, Rivas A, Skarzynski PH, Sprinzl G, Staecker H, Stephan K, Usami S, Yanov Y, Zernotti ME, Zimmermann K, Lorens A, Mertens G. Towards a consensus on a hearing preservation classification system. Acta Otolaryngol 2013:3-13. [PMID: 24328756 DOI: 10.3109/00016489.2013.869059] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION The comprehensive Hearing Preservation classification system presented in this paper is suitable for use for all cochlear implant users with measurable pre-operative residual hearing. If adopted as a universal reporting standard, as it was designed to be, it should prove highly beneficial by enabling future studies to quickly and easily compare the results of previous studies and meta-analyze their data. OBJECTIVES To develop a comprehensive Hearing Preservation classification system suitable for use for all cochlear implant users with measurable pre-operative residual hearing. METHODS The HEARRING group discussed and reviewed a number of different propositions of a HP classification systems and reviewed critical appraisals to develop a qualitative system in accordance with the prerequisites. RESULTS The Hearing Preservation Classification System proposed herein fulfills the following necessary criteria: 1) classification is independent from users' initial hearing, 2) it is appropriate for all cochlear implant users with measurable pre-operative residual hearing, 3) it covers the whole range of pure tone average from 0 to 120 dB; 4) it is easy to use and easy to understand.
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Kaspar F, Müller-Westermeier G, Penda E, Mächel H, Zimmermann K, Kaiser-Weiss A, Deutschländer T. Monitoring of climate change in Germany – data, products and services of Germany's National Climate Data Centre. Adv Sci Res 2013. [DOI: 10.5194/asr-10-99-2013] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Germany's national meteorological service (Deutscher Wetterdienst, DWD) is the responsible authority for monitoring climate change in Germany. To fulfill this task it operates the National Climate Data Centre ("Nationales KlimaDatenZentrum, NKDZ"). The historical and current instrumental measurements and visual observations of DWD's station network are archived, quality-controlled and used to provide aggregated products, as for example daily and monthly means or climate normals. Gridded data are generated and used to derive time series of national and regional averages. Phenological observations and radiosonde data are also part of the data base. In recent years, additional historical data have been digitized to expand the data base. The products are used for informing the public, e.g. as an element of the German climate atlas (http://www.deutscher-klimaatlas.de). One major recent activity was the provision of information for the new climatological reference interval 1981–2010 and an updated climatological analysis based on the newly digitized data.
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Friese A, Schulz J, Zimmermann K, Tenhagen BA, Fetsch A, Hartung J, Rösler U. Occurrence of livestock-associated methicillin-resistant Staphylococcus aureus in Turkey and broiler barns and contamination of air and soil surfaces in their vicinity. Appl Environ Microbiol 2013. [PMID: 23417001 DOI: 10.1128/aem.03939-1] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
The emission of microorganisms, especially resistant bacteria such as methicillin-resistant Staphylococcus aureus (MRSA), from poultry farms is of public interest, and its occurrence and relevance are controversially discussed. So far, there are limited data on this issue. In this study, we investigated the occurrence of livestock-associated (LA)-MRSA inside and outside previously tested MRSA-positive poultry barns in Germany. In total, five turkey and two broiler fattening farms were investigated four and three times, respectively. In a longitudinal study during one fattening period, samples were collected from animals, the animals' environment inside the barn, including the air, and the barns' surroundings, such as ambient air and boot swabs of ground surfaces at different distances from the barn. Moreover, a cross-sectional study was carried out once inside the barns on five turkey and four broiler farms during the last third of the fatting period. In the cross-sectional study, LA-MRSA was detected in the air of most barns (7 of 9, 77.8%), as well as in many samples originating from animals, with detections levels of 50 to 54% in broiler and 62 to 77% in turkey farms. In the longitudinal study, LA-MRSA was found in the ambient air outside two turkey barns and on the ground surface on the downwind side of many (44.4%) turkey and broiler farms. The same spa types of isolates were observed inside and outside the barns. Transmission of MRSA within poultry farms, as well as emission via the airborne route, seems to be possible.
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Affiliation(s)
- A Friese
- Institute for Animal Hygiene and Environmental Health, Free University Berlin, Berlin, Germany.
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Ottersbach A, Kilgus C, Heidsieck A, Zimmermann K, Mykhaylyk O, Gleich B, Plank C, Pfeifer A, Sasse P, Fleischmann BK, Welz A, Roell W. Site specific positioning of magnetic nanoparticle (MNP) loaded cells improves cell homing and cardiac function. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332326] [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: 10/27/2022]
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Roell W, Klein AM, Ottersbach A, Zimmermann K, Sasse P, Pfeifer A, Welz A, Fleischmann BK. Local lentiviral Connexin 43 (Cx43) transduction reduces incidence of post-infarct ventricular tachycardias (VT's) in mouse. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332322] [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: 10/27/2022]
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Schwarzbach R, Zimmermann K, Novak-Hofer I, Schubiger PA. A comparison of 67CU production by proton (67 TO 12 MEV) induced reactions on NATZN and on enriched 68ZN/70ZN. J Labelled Comp Radiopharm 2012. [DOI: 10.1002/jlcr.25804401284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zimmer J, Lange B, Frick JS, Sauer H, Zimmermann K, Schwiertz A, Rusch K, Klosterhalfen S, Enck P. A vegan or vegetarian diet substantially alters the human colonic faecal microbiota. Eur J Clin Nutr 2011. [PMID: 21811294 DOI: 10.1038/ejcn] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND/OBJECTIVES Consisting of ≈10(14) microbial cells, the intestinal microbiota represents the largest and the most complex microbial community inhabiting the human body. However, the influence of regular diets on the microbiota is widely unknown. SUBJECTS/METHODS We examined faecal samples of vegetarians (n=144), vegans (n=105) and an equal number of control subjects consuming ordinary omnivorous diet who were matched for age and gender. We used classical bacteriological isolation, identification and enumeration of the main anaerobic and aerobic bacterial genera and computed absolute and relative numbers that were compared between groups. RESULTS Total counts of Bacteroides spp., Bifidobacterium spp., Escherichia coli and Enterobacteriaceae spp. were significantly lower (P=0.001, P=0.002, P=0.006 and P=0.008, respectively) in vegan samples than in controls, whereas others (E. coli biovars, Klebsiella spp., Enterobacter spp., other Enterobacteriaceae, Enterococcus spp., Lactobacillus spp., Citrobacter spp. and Clostridium spp.) were not. Subjects on a vegetarian diet ranked between vegans and controls. The total microbial count did not differ between the groups. In addition, subjects on a vegan or vegetarian diet showed significantly (P=0.0001) lower stool pH than did controls, and stool pH and counts of E. coli and Enterobacteriaceae were significantly correlated across all subgroups. CONCLUSIONS Maintaining a strict vegan or vegetarian diet results in a significant shift in the microbiota while total cell numbers remain unaltered.
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Affiliation(s)
- J Zimmer
- Department of Internal Medicine VI, University Hospital, Tübingen, Germany
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Zimmer J, Lange B, Frick JS, Sauer H, Zimmermann K, Schwiertz A, Rusch K, Klosterhalfen S, Enck P. A vegan or vegetarian diet substantially alters the human colonic faecal microbiota. Eur J Clin Nutr 2011; 66:53-60. [PMID: 21811294 DOI: 10.1038/ejcn.2011.141] [Citation(s) in RCA: 282] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND/OBJECTIVES Consisting of ≈10(14) microbial cells, the intestinal microbiota represents the largest and the most complex microbial community inhabiting the human body. However, the influence of regular diets on the microbiota is widely unknown. SUBJECTS/METHODS We examined faecal samples of vegetarians (n=144), vegans (n=105) and an equal number of control subjects consuming ordinary omnivorous diet who were matched for age and gender. We used classical bacteriological isolation, identification and enumeration of the main anaerobic and aerobic bacterial genera and computed absolute and relative numbers that were compared between groups. RESULTS Total counts of Bacteroides spp., Bifidobacterium spp., Escherichia coli and Enterobacteriaceae spp. were significantly lower (P=0.001, P=0.002, P=0.006 and P=0.008, respectively) in vegan samples than in controls, whereas others (E. coli biovars, Klebsiella spp., Enterobacter spp., other Enterobacteriaceae, Enterococcus spp., Lactobacillus spp., Citrobacter spp. and Clostridium spp.) were not. Subjects on a vegetarian diet ranked between vegans and controls. The total microbial count did not differ between the groups. In addition, subjects on a vegan or vegetarian diet showed significantly (P=0.0001) lower stool pH than did controls, and stool pH and counts of E. coli and Enterobacteriaceae were significantly correlated across all subgroups. CONCLUSIONS Maintaining a strict vegan or vegetarian diet results in a significant shift in the microbiota while total cell numbers remain unaltered.
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Affiliation(s)
- J Zimmer
- Department of Internal Medicine VI, University Hospital, Tübingen, Germany
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Letsch A, Scheibenbogen C, Asemissen AM, Zimmermann K, Bauer S, Voelker-Call M, Stather D, Thiel E, Keilholz U. Clinical effects of Wilms tumor protein (WT) 1 peptide vaccination in patients with WT1-expressing solid tumors as compared to patients with AML/MDS. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2560] [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: 11/20/2022] Open
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Soltow M, Zimmermann K, Pavlovic D, Zhou J, Whynot S, Hung O, Murphy M, Johnston B, Lehmann C. The TLR4 antagonist CRX-526 reduces LPS-induced leukocyte activation and improves capillary perfusion of the rat intestine. Crit Care 2010. [PMCID: PMC2934229 DOI: 10.1186/cc8240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zimmermann K, Krieg T, Soltow M, Pavlovic D, Zhou J, Whynot S, Hung O, Murphy M, Lehmann C. Adenosine signalling has a protective role in intestinal ischemia and reperfusion injury. Crit Care 2010. [PMCID: PMC2934396 DOI: 10.1186/cc8326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Eggert-Kruse W, Zimmermann K, Geißler W, Ehrmann A, Boit R, Strowitzki T. Clinical relevance of polymorphonuclear (PMN-) elastase determination in semen and serum during infertility investigation. ACTA ACUST UNITED AC 2009; 32:317-29. [DOI: 10.1111/j.1365-2605.2007.00852.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Enck P, Zimmermann K, Rusch K, Schwiertz A, Klosterhalfen S, Frick JS. The effects of ageing on the colonic bacterial microflora in adults. Z Gastroenterol 2009; 47:653-8. [PMID: 19606407 DOI: 10.1055/s-0028-1109055] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The composition of the fecal mircoflora and its changes on ageing have rarely been investigated in large samples of both patients and volunteers. METHODS We analysed the fecal flora by conventional microbiological testing (Kyberstatus, Institute of Microecology, Herborn, Germany) of stool samples from 35 292 adults (age: 46.3 +/- 0.08 [18 to 96] years, 9564 males, 24 784 females; remaining = missing data) with different intestinal and non-intestinal diagnoses for total colony-forming units (CFU) (per g stool) as well as relative abundance of Bifidobacteria, Bacteroides spp., Escherichia coli, Enterococcus spp., and Lactobacillus spp. with respect to age, gender, and clinical data available (e. g., stool consistency and pH). RESULTS The total CFU was stable and showed no age- or gender-related changes. Individual bacterial species constantly and significantly increased with age (E. coli, Enterococci spp.), or decreased at higher age (Bacteroides spp.), or were stable throughout the life span (Lactobacilli, Bifidobacteria). Gastrointestinal diagnoses (Crohn's disease, n = 198; ulcerative colitis, n = 515; irritable bowel syndrome, n = 7765; other GI diagnoses, n = 10 478) tended to exhibit some specificity of the bacterial profile, and when GI diagnoses were excluded, the age-related bacterial profile of the remaining group (n = 15 619, m:f = 4197:11 422) was not different. CONCLUSION Conventional microbiological investigations of the fecal microbiota showed both bacteria-specific as well as a general pattern of ageing of the colonic microbiota, with the last decades (more than 60 years) demonstrating the most profound changes. It remains to be shown whether these changes reflect direct changes of the gut microbiota, the mucosal innate immunity, or indirect consequences of age-related altered nutrition.
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Affiliation(s)
- P Enck
- Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Frondsbergstr. 23, 72076 Tübingen.
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Busse A, Asemissen A, Schmittel A, Zimmermann K, Miller K, Rietz A, Ochsenreither S, Fusi A, Thiel E, Keilholz U. Immune self-tuning in renal cell carcinoma patients. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e22069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e22069 Background: Renal cell carcinoma (RCC) cells can inhibit protective antitumor immunity by secretion of immunosuppressive factors leading to the induction of regulatory T cells. The objective of this study was to investigate the prognostic impact of mRNA expression levels of IL10, TGFβ and forkhead box transcription factor (FoxP3) mRNA in peripheral blood mononuclear cells (PBMCs) of metastatic RCC patients before receiving treatment with sorafenib. Methods: PBMCs of 46 patients were assessed for their expression levels of TGFβ, IL10 and FoxP3 by quantitative RT-PCR. Clinical features considered included ECOG performance status, hemoglobin, alkaline phosphatase, and calcium concentrations. Disease evaluation was performed every 8 weeks following RECIST criteria. Relationship between pre-treatment factors and survival were examined in univariate analyses and subsequently by multivariate analysis using a stepwise Cox regression model. Results: In contrast to FoxP3, mRNA expression levels of IL10 and TGFβ were significantly higher in the 46 RCC patients compared to healthy volunteers: Median expression levels [ratio marker /housekeeping gene PBGD] were 5.56E-05 vs 2.05E-04 (P=0.034) for IL10 and 7.38E-02 vs 3.04E- 01 (P=0.023) for TGFβ. Univariate analysis revealed a negative prognostic influence of IL10 on progression free survival (p=0.04) and on overall survival, although not significant (P= 0.063). Surprisingly, high TGFβ and FoxP3 expression levels had a positive influence on progression free (P<0.001 and P=0.047, respectively) and overall survival (P<0.001 and P= 0.031, respectively). In the multivariate analysis low ECOG performance status and high TGFβ mRNA expression levels were independently associated with worse progression free (P=0.001 and P=0.054,) and worse overall survival (P=0. 006 and P< 0.001, respectively). Conclusions: RCC caused an immune-suppressive phenotype in PBMC characterized by increased mRNA expression levels of IL10 and TGFβ. Surprisingly, in contrast to IL10, a high TGFβ mRNA expression level was an independent good prognostic factor. Whether this observation can be attributed to recently described immune promoting functions of TGFβ needs to be determined. No significant financial relationships to disclose.
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Affiliation(s)
- A. Busse
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - A. Asemissen
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - A. Schmittel
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - K. Zimmermann
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - K. Miller
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - A. Rietz
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | | | - A. Fusi
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - E. Thiel
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
| | - U. Keilholz
- Charité-CBF, Berlin, Germany; Charité-CBF/CCM, Berlin, Germany
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Ottendorfer D, Zimmermann K, Taborski B, Thoma W, Thoma H, Schade I. Immunologische Ex-vivo-Untersuchungen zum Wirkmechanismus von humanen Enterococcus-faecalis-Bakterien (Symbioflor 1 ®) an Miniaturschweinen. Complement Med Res 2009. [DOI: 10.1159/000210172] [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: 11/19/2022]
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Möndel M, Schroeder BO, Zimmermann K, Huber H, Nuding S, Beisner J, Fellermann K, Stange EF, Wehkamp J. Probiotic E. coli treatment mediates antimicrobial human beta-defensin synthesis and fecal excretion in humans. Mucosal Immunol 2009; 2:166-72. [PMID: 19129752 PMCID: PMC10026704 DOI: 10.1038/mi.2008.77] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Inducible epithelial human beta-defensins (hBD) play an important role in intestinal barrier function. In vitro studies showed that clinically effective probiotics induce antimicrobial hBD-2. Here, we aimed to assess the in vivo effect in healthy volunteers and also addressed how defensins affect probiotic survival. Symbioflor 2 containing one strain of several viable genotypes of Escherichia coli was administered to 23 healthy individuals. After 3 weeks, fecal hBD-2 peptide was increased in 78% (mean 3.7-fold; P<0.0001). Interestingly, the fecal hBD-2 peptide was still elevated 9 weeks after treatment (P=0.008). In vitro studies revealed that this effect was mediated by only one out of three tested E. coli genotypes and comparable to probiotic E. coli Nissle 1917 (10- to 15-fold). Functional assays showed that all tested bacteria were similarly killed by defensins allowing to speculate about a suicidal character of this effect. Defensin induction seems to be a common and important mechanism of probiotic treatment.
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Affiliation(s)
- M Möndel
- Dr Margarete Fischer-Bosch-Institute of Clinical Pharmacology and University of Tübingen, Stuttgart, Germany
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Zimmermann K, Pasel C, Luckas M, Herbell JD. Löslichkeit von Schwefeldioxid in wässrigen Systemen bei höheren Elektrolytkonzentrationen II. Bromidhaltige Systeme. CHEM-ING-TECH 2009. [DOI: 10.1002/cite.200800104] [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: 11/07/2022]
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Enck P, Zimmermann K, Menke G, Klosterhalfen S. Randomized controlled treatment trial of irritable bowel syndrome with a probiotic E.-coli preparation (DSM17252) compared to placebo. Z Gastroenterol 2009; 47:209-14. [PMID: 19197823 DOI: 10.1055/s-2008-1027702] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Therapy trials with bacterial compounds in irritable bowel syndrome (IBS) have produced conflicting results and, so far, an E.-coli preparation has not been used. METHODS Two hundred and ninety-eight patients with lower abdominal symptoms diagnosed as IBS were treated for 8 weeks by the compound Symbioflor-2 (Symbiopharm GmbH, Herborn, Germany), an Escherichia coli product (N = 148), or placebo (n = 150) in a double-blinded, randomized fashion. Patients were seen weekly by the physician, who assessed the presence of core IBS symptoms. Both an abdominal pain score (APS) as well as a general symptom score (GSS) were used as primary endpoints. Responders had to have complete absence of IBS core symptoms at > or = 1 visit during treatment. RESULTS The responder rate in GSS to the drug was 27 / 148 (18.2 %) in comparison to placebo with 7 / 150 (4.67 %) (p = 0.000397). The improvement in APS was 28 / 148 (18.9 %) and 10 / 150 (6.67 %) for placebo (p = 0.001649). The response was reached from visit 3 onwards with both medication and placebo. Post-hoc analysis revealed no significant differences in efficacy of the drug between the gender and different age groups. CONCLUSION Treatment of IBS with the probiotic Symbioflor-2 is effective and superior to placebo in reducing typical symptoms of IBS patients seen by general practitioners and by gastroenterologists.
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Affiliation(s)
- P Enck
- Internal Medicine VI, University Medical Hospital, Tübingen, Germany.
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