Zautner, Andreas Erich

[["dc.bibliographiccitation.artnumber","1"],["dc.bibliographiccitation.journal","Otolaryngology"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Frickmann, Hagen"],["dc.contributor.author","Zautner, Andreas Erich"],["dc.contributor.other","Ulualp, Seckin O."],["dc.date.accessioned","2013-01-04T13:06:45Z"],["dc.date.accessioned","2021-10-27T13:19:58Z"],["dc.date.available","2013-01-04T13:06:45Z"],["dc.date.available","2021-10-27T13:19:58Z"],["dc.date.issued","2012"],["dc.description.abstract","The article provides an overview on the current state-of-science of middle ear cholesteatoma, a non-neoplastic, keratinizing lesion that is characterized by the proliferation of epithelium with aberrant micro-architecture. Pathogenetic mechanisms including morphological, immunological, epidemiological and microbiological aspects of the disease are summarized. The importance of penicillinase-expressing anaerobic bacteria and biofilm formation for maintaining the chronic middle ear inflammation is stressed. Nevertheless, the role of the isolated pathogens in the primarily non-sterile compartiment of the middle ear cavity is so far not completely understood and data on the isolated species are contradictious. Heredity was demonstated for some variants of the disease. Therefore, further studies on the etiological role of microbial agents and potential benefits of resistance-adapted antimicrobial therapy seem advisable. Local and systemic complications of the potentially life-threatening disease like conductive and sensorineural hearing loss and cranial abscesses are reported. The prognosis is limited due to frequent recurrence in spite of surgical therapy. Further research is necessary for a better understanding of the pathogenetic mechanisms and to expand the sectrum of therapeutic options."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2012"],["dc.identifier.doi","10.4172/2161-119X.S5-001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8474"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91926"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.issn","2161-119X"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.relation.orgunit","Institut für Medizinische Mikrobiologie"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","610"],["dc.title","Cholesteatoma – A Potential Consequence of Chronic Middle Ear Inflammation"],["dc.title.alternative","Otilis Media"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","European Journal of Microbiology and Immunology"],["dc.bibliographiccitation.lastpage","3"],["dc.contributor.author","Ogbor, Oreva"],["dc.contributor.author","Ajayi, Abraham"],["dc.contributor.author","Zautner, Andreas E."],["dc.contributor.author","Smith, Stella I."],["dc.date.accessioned","2019-07-09T11:51:44Z"],["dc.date.available","2019-07-09T11:51:44Z"],["dc.date.issued","2019"],["dc.description.abstract","Campylobacter jejuni and Campylobacter coli are among the leading causes of gastroenteritis in humans worldwide, particularly in Africa. Poultry remains a major source of Campylobacter species and a vector of transmission to humans. This pilot study was aimed at isolating and determining the antibiotic susceptibility profiles of Campylobacter spp. from fresh poultry droppings collected from poultry farms in Lagos State, Nigeria. Susceptibility was assessed using the CLSI standards. Standard microbiological methods were used in isolation, identification, and characterization of Campylobacter spp. Isolates were subjected to antibiotic susceptibility testing by the disk diffusion method. Of the 150 poultry droppings analyzed, 8 (5.3%) harbored Campylobacter spp. All isolates proved to be C. coli since they were all negative for the hip gene. A percentage of 100% showed resistance to nalidixic acid, chloramphenicol, cloxacillin, and streptomycin. While 87.5% were susceptible to amoxicillin and amoxicillin/clavulanic acid, 62.5% were susceptible to tetracycline. Surprisingly, 62.5% of C. coli had decreased (intermediate) susceptibility to erythromycin. Although there was a low prevalence of C. coli from poultry in this study, the presence of antibiotic resistant strains circulating the food chain could result in treatment failures and difficulty in case management if involved in infections of humans."],["dc.identifier.doi","10.1556/1886.2019.00007"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16176"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59995"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2062-8633"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.subject.ddc","610"],["dc.title","Antibiotic susceptibility profiles of Campylobacter coli isolated from poultry farms in Lagos Nigeria – A pilot study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","European Journal of Microbiology and Immunology"],["dc.bibliographiccitation.lastpage","10"],["dc.contributor.author","Emele, Matthias F."],["dc.contributor.author","Karg, Matti"],["dc.contributor.author","Hotzel, Helmut"],["dc.contributor.author","Graaf-van Bloois, Linda"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Bader, Oliver"],["dc.contributor.author","Zautner, Andreas E."],["dc.date.accessioned","2019-07-09T11:51:43Z"],["dc.date.available","2019-07-09T11:51:43Z"],["dc.date.issued","2019"],["dc.description.abstract","ampylobacter fetus is a causative agent of intestinal illness and, occasionally, severe systemic infections and meningitis. C. fetus currently comprises three subspecies: C. fetus subspecies fetus (Cff), C. fetus subspecies venerealis (Cfv), and C. fetus subspecies testudinum (Cft). Cff and Cfv are primarily associated with mammals whereas Cft is associated with reptiles. To offer an alternative to laborious sequence-based techniques such as multilocus sequence typing (MLST) and polymerase chain reaction (PCR)-ribotyping for this species, the purpose of the study was to develop a typing scheme based on proteotyping. In total, 41 representative C. fetus strains were analyzed by intact cell mass spectrometry and compared to MLST results. Biomarkers detected in the mass spectrum of C. fetus subsp. fetus reference strain LMG 6442 (NCTC 10842) as well as corresponding isoforms were associated with the respective amino acid sequences and added to the C. fetus proteotyping scheme. In combination, the 9 identified biomarkers allow the differentiation of Cft subspecies strains from Cff and Cfv subspecies strains. Biomarkers to distinguish between Cff and Cfv were not found. The results of the study show the potential of proteotyping to differentiate different subspecies, but also the limitations of the method."],["dc.identifier.doi","10.1556/1886.2019.00006"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16175"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59994"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2062-8633"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.subject.ddc","610"],["dc.title","Differentiation of Campylobacter fetus subspecies by proteotyping"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","4244"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Emele, Matthias Frederik"],["dc.contributor.author","Možina, Sonja Smole"],["dc.contributor.author","Lugert, Raimond"],["dc.contributor.author","Bohne, Wolfgang"],["dc.contributor.author","Masanta, Wycliffe Omurwa"],["dc.contributor.author","Riedel, Thomas"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Bader, Oliver"],["dc.contributor.author","Zautner, Andreas Erich"],["dc.date.accessioned","2019-07-09T11:50:14Z"],["dc.date.available","2019-07-09T11:50:14Z"],["dc.date.issued","2019"],["dc.description.abstract","Besides Campylobacter jejuni, Campylobacter coli is the most common bacterial cause of gastroenteritis worldwide. C. coli is subdivided into three clades, which are associated with sample source. Clade 1 isolates are associated with acute diarrhea in humans whereas clade 2 and 3 isolates are more commonly obtained from environmental waters. The phylogenetic classification of an isolate is commonly done using laborious multilocus sequence typing (MLST). The aim of this study was to establish a proteotyping scheme using MALDI-TOF MS to offer an alternative to sequence-based methods. A total of 97 clade-representative C. coli isolates were analyzed by MALDI-TOF-based intact cell mass spectrometry (ICMS) and evaluated to establish a C. coli proteotyping scheme. MLST was used as reference method. Different isoforms of the detectable biomarkers, resulting in biomarker mass shifts, were associated with their amino acid sequences and included into the C. coli proteotyping scheme. In total, we identified 16 biomarkers to differentiate C. coli into the three clades and three additional sub-clades of clade 1. In this study, proteotyping has been successfully adapted to C. coli. The established C. coli clades and sub-clades can be discriminated using this method. Especially the clinically relevant clade 1 isolates can be differentiated clearly."],["dc.identifier.doi","10.1038/s41598-019-40842-w"],["dc.identifier.pmid","30862911"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15886"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59727"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2045-2322"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","Proteotyping as alternate typing method to differentiate Campylobacter coli clades"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","1800083"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","PROTEOMICS – Clinical Applications"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Masanta, Wycliffe O."],["dc.contributor.author","Zautner, Andreas E."],["dc.contributor.author","Lugert, Raimond"],["dc.contributor.author","Bohne, Wolfgang"],["dc.contributor.author","Gross, Uwe"],["dc.contributor.author","Leha, Andreas"],["dc.contributor.author","Dakna, Mohammed"],["dc.contributor.author","Lenz, Christof"],["dc.date.accessioned","2019-07-09T11:51:53Z"],["dc.date.available","2019-07-09T11:51:53Z"],["dc.date.issued","2018"],["dc.description.abstract","PURPOSE: Bile acids are crucial components of the intestinal antimicrobial defense and represent a significant stress factor for enteric pathogens. Adaptation processes of Campylobacter jejuni to this hostile environment are analyzed in this study by a proteomic approach. EXPERIMENTAL DESIGN: Proteome profiling by label-free mass spectrometry (SWATH-MS) has been used to characterize the adaptation of C. jejuni to sublethal concentrations of seven bile acids. RESULTS: The bile acids with the lowest inhibitory concentration (IC50 ), deoxycholic and chenodeoxycholic acid, induce the most significant proteome changes. Overall a downregulation of all basic biosynthetic pathways and a general decrease in the transcription machinery are found. Concurrently, an induction of factors involved in detoxification of reactive oxygen species, protein folding, and bile acid exporting efflux pumps is detected. Exposure to deoxycholic and chenodeoxycholic acid results in an increased expression of components of the more energy-efficient aerobic respiration pathway, while the anaerobic branches of the electron transport chain are down-expressed. CONCLUSIONS AND CLINICAL RELEVANCE: The results show that C. jejuni has a differentiated system of adaptation to bile acid stresses. The findings enhance the understanding of the pathogenesis of campylobacteriosis, especially for survival of C. jejuni in the human intestine, and may provide clues to future medical treatment."],["dc.identifier.doi","10.1002/prca.201800083"],["dc.identifier.pmid","30246935"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16217"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/60032"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","Proteome Profiling by Label‐Free Mass Spectrometry Reveals Differentiated Response of Campylobacter jejuni 81–176 to Sublethal Concentrations of Bile Acids"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]