1
|
Mehl C, Mätz-Rensing K, Linde J, Struve B, Ismer G, van Hümmel C, Ulrich RG, Tomaso H. Case report: tularaemia in a white-handed gibbon ( Hylobates lar), Germany. Int J Vet Sci Med 2023; 11:121-125. [PMID: 38125824 PMCID: PMC10732199 DOI: 10.1080/23144599.2023.2264084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/05/2023] [Indexed: 12/23/2023] Open
Abstract
In 2021, a white-handed gibbon (Hylobates lar) succumbed to illness shortly after transfer from one zoo to another in Germany, due to Francisella tularensis subsp. holarctica infection. To determine the source of infection, whole genome sequencing of the gibbon-derived isolate was performed and wild pest rodents (and captive squirrels) from both zoos were screened for F. tularensis. The F. tularensis whole genome sequence obtained from the gibbon was closely related to previous subclade B.281 sequences obtained from hares from Baden-Wuerttemberg, the same region where the gibbon was first housed. However, F. tularensis DNA was detected in one Norway rat from the receiving zoo. Therefore, neither zoo can be excluded as the source of infection.
Collapse
Affiliation(s)
- Calvin Mehl
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases (INNT), Greifswald, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel- Riems, Greifswald, Germany
| | - Kerstin Mätz-Rensing
- German Primate Center GmbH (DPZ), Leibniz Institute for Primate Research, Göttingen, Germany
| | - Jörg Linde
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute for Bacterial Infections and Zoonoses (IBIZ), Jena, Germany
| | | | | | | | - Rainer G. Ulrich
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases (INNT), Greifswald, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel- Riems, Greifswald, Germany
| | - Herbert Tomaso
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Institute for Bacterial Infections and Zoonoses (IBIZ), Jena, Germany
| |
Collapse
|
2
|
Thingholm LB, Bang C, Rühlemann MC, Starke A, Sicks F, Kaspari V, Jandowsky A, Frölich K, Ismer G, Bernhard A, Bombis C, Struve B, Rausch P, Franke A. Ecology impacts the decrease of Spirochaetes and Prevotella in the fecal gut microbiota of urban humans. BMC Microbiol 2021; 21:276. [PMID: 34635060 PMCID: PMC8504008 DOI: 10.1186/s12866-021-02337-5] [Citation(s) in RCA: 9] [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: 06/16/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023] Open
Abstract
Compared to the huge microbial diversity in most mammals, human gut microbiomes have lost diversity while becoming specialized for animal-based diets – especially compared to chimps, their genetically closest ancestors. The lowered microbial diversity within the gut of westernized populations has also been associated with different kinds of chronic inflammatory diseases in humans. To further deepen our knowledge on phylogenetic and ecologic impacts on human health and fitness, we established the herein presented biobank as well as its comprehensive microbiota analysis. In total, 368 stool samples from 38 different animal species, including Homo sapiens, belonging to four diverse mammalian orders were collected at seven different locations and analyzed by 16S rRNA gene amplicon sequencing. Comprehensive data analysis was performed to (i) determine the overall impact of host phylogeny vs. diet, location, and ecology and to (ii) examine the general pattern of fecal bacterial diversity across captive mammals and humans. By using a controlled study design with captive mammals we could verify that host phylogeny is the most dominant driver of mammalian gut microbiota composition. However, the effect of ecology appears to be able to overcome host phylogeny and should therefore be studied in more detail in future studies. Most importantly, our study could observe a remarkable decrease of Spirochaetes and Prevotella in westernized humans and platyrrhines, which is probably not only due to diet, but also to the social behavior and structure in these communities. Our study highlights the importance of phylogenetic relationship and ecology within the evolution of mammalian fecal microbiota composition. Particularly, the observed decrease of Spirochaetes and Prevotella in westernized communities might be associated to lifestyle dependent rapid evolutionary changes, potentially involved in the establishment of dysbiotic microbiomes, which promote the etiology of chronic diseases.
Collapse
Affiliation(s)
- Louise B Thingholm
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany
| | - Corinna Bang
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany
| | - Malte C Rühlemann
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany
| | - Annika Starke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany
| | - Florian Sicks
- Tierpark Berlin-Friedrichsfelde GmbH, Berlin, Germany
| | - Verena Kaspari
- Tierparkvereinigung Neumuenster e.V, Neumuenster, Germany
| | | | | | | | | | - Claudia Bombis
- Tierpark Hagenbeck Gemeinnützige Gesellschaft mbH, Hamburg, Germany
| | - Barbara Struve
- Leintalzoo Schwaigern, Freudenmühle 1, 74193, Schwaigern, Germany
| | - Philipp Rausch
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Campus Kiel, Rosalind-Franklin-Str, 12, 24105, Kiel, Germany. .,University Hospital Schleswig Holstein (UKSH), Campus Kiel, Kiel, Germany.
| |
Collapse
|
3
|
Jahn R, Bleckmann A, Duczynski E, Huber G, Lierse W, Struve B, Jungbluth KH. [Thermal side effects after use of the pulsed IR laser on meniscus and bone tissue]. Unfallchirurgie 1994; 20:1-10. [PMID: 8154053 DOI: 10.1007/bf02588133] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Thermal effects on meniscus and bone tissue after application of 314 boreholes using five different infrared (IR) lasers: Nd:YAG, Tm:YAG, Ho:YAG, Er:YAG, Cr,Er:YSGG (application energy 200 mJ, 400 mJ, 600 mJ, 800 mJ, 1000 mJ; repetition rate 2 Hz, 5 Hz; medium air, water rinse) were analyzed. The experimental set-up comprised for the beam guiding a focussing lens (f = 100 mm) or a flexible fiber (Ho:YAG). Damaged tissue was investigated macroscopically, histologically, and by scanning electron microscopy. Application in air caused carbonisation in all cases. Application in water showed thermal brown discoloring using Tm:YAG, Ho:YAG laser on meniscus tissue. The Nd:YAG did not ablate. The Er:YAG laser showed macroscopically precise boreholes without any discoloring of the adjacent tissue as well in meniscus as in bone. Cr:ErYSGG laser results were comparable with the results using an Er:YAG laser although ablation on bone tissue created higher thermal effects. For the aim of developing minimal invasive operating techniques the Er:YAG laser showed best results.
Collapse
Affiliation(s)
- R Jahn
- Abteilung Unfallchirurgie, Universitätskrankenhaus Hamburg-Eppendorf
| | | | | | | | | | | | | |
Collapse
|