Full Text Journal Articles by
Author Ludwig E Hoelzle

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Symposium report: emerging threats for human health - impact of socioeconomic and climate change on zooanthroponosis in the Republic of Sakha (Yakutia), Russia.

Irene Huber, Katerina Potapova, Elena Ammosova, Wolfgang Beyer, Sergey Blagodatskiy, Roman Desyatkin, Ludwig E Hoelzle, Margarita Ignateva, Ludmila Kokolova, Stefanie Lemke, Mikhail Neustroev, Ayan Nyukkanov, Galina Protodyakonova, Alexander Reshetnikov, Thomas Romig, Vyacheslav Shadrin, Izabella Samoilova, Sergey Semenov, Konstantin Stepanov, Nadezhda Tarabukina, Liliia Vinokurova, Raisa Zakharova, Konstantin Nifontov,

Population growth, socio-cultural and economic changes as well as technological progress have an immediate impact on the environment and human health in particular. Our steadily rising needs of resources increase the pressure on the environment and narrow down untainted habitats for plants and wild animals. Balance and resilience of ecosystems ... Read more >>

Int J Circumpolar Health (International journal of circumpolar health)
[2020, 79(1):1715698]

Cited: 0 times

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Detection of a novel haemoplasma species in fattening pigs with skin alterations, fever and anaemia.

Julia Stadler, Julia Ade, Mathias Ritzmann, Katharina Hoelzle, Ludwig E Hoelzle,

BACKGROUND:In a fattening farm in Southern Germany, skin alterations (urticaria, haemorrhagic diathesis) and high fever were observed in 30% of the pigs 2 weeks after arrival. Feed intake was severely compromised in affected pigs. METHODS:After detailed clinical observation, blood samples from affected pigs were collected for haematological, PCR and serological ... Read more >>

Vet. Rec. (The Veterinary record)
[2020, :]

Cited: 0 times

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Detection of Mycoplasma suis in pre-suckling piglets indicates a vertical transmission.

Julia Stadler, Stephan Willi, Mathias Ritzmann, Matthias Eddicks, Julia Ade, Katharina Hoelzle, Ludwig E Hoelzle,

BACKGROUND:Transmission of Mycoplasma (M.) suis mainly occurs via iatrogenic or zootechnical manipulations or due to ranking fights. Other transmission routes including ingestion of secretes/excretes; blood-sucking arthropods and intra-uterine transmission have thought to play an epidemiological role without being experimentally proven. To investigate a vertical transmission of M. suis under field ... Read more >>

BMC Vet. Res. (BMC veterinary research)
[2019, 15(1):252]

Cited: 0 times

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Quantitative analysis of Mycoplasma wenyonii and 'Candidatus Mycoplasma haemobos" infections in cattle using novel gapN-based realtime PCR assays.

Julia Ade, Florian Niethammer, Benjamin Schade, Thorben Schilling, Katharina Hoelzle, Ludwig E Hoelzle,

Hemotrophic mycoplasmas (HMs) are associated with anemia and other disease complexes in a wide range of livestock and wild animals. Two bovine HM species have been identified to date, i.e. Mycoplasma wenyonii and 'Candidatus Mycoplasma haemobos'. The study aim was to develop quantitative real-time PCR assays (qPCRs) to detect and ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2018, 220:1-6]

Cited: 2 times

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Dietary changes in nutritional studies shape the structural and functional composition of the pigs' fecal microbiome-from days to weeks.

Bruno Tilocca, Katharina Burbach, Charlotte M E Heyer, Ludwig E Hoelzle, Rainer Mosenthin, Volker Stefanski, Amélia Camarinha-Silva, Jana Seifert,

The possible impact of changes in diet composition on the intestinal microbiome is mostly studied after some days of adaptation to the diet of interest. The question arises if a few days are enough to reflect the microbial response to the diet by changing the community composition and function. The ... Read more >>

Microbiome (Microbiome)
[2017, 5(1):144]

Cited: 8 times

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The Priority position paper: Protecting Europe's food chain from prions.

Jesús R Requena, Krister Kristensson, Carsten Korth, Chiara Zurzolo, Marion Simmons, Patricia Aguilar-Calvo, Adriano Aguzzi, Olivier Andreoletti, Sylvie L Benestad, Reinhard Böhm, Karen Brown, Byron Calgua, José Antonio Del Río, Juan Carlos Espinosa, Rosina Girones, Sue Godsave, Ludwig E Hoelzle, Michael R Knittler, Franziska Kuhn, Giuseppe Legname, Paul Laeven, Neil Mabbott, Eva Mitrova, Andreas Müller-Schiffmann, Mario Nuvolone, Peter J Peters, Alex Raeber, Klaus Roth, Matthias Schmitz, Björn Schroeder, Tiziana Sonati, Lothar Stitz, Albert Taraboulos, Juan María Torres, Zheng-Xin Yan, Inga Zerr,

Bovine spongiform encephalopathy (BSE) created a global European crisis in the 1980s and 90s, with very serious health and economic implications. Classical BSE now appears to be under control, to a great extent as a result of a global research effort that identified the sources of prions in meat and ... Read more >>

Prion (Prion)
[2016, 10(3):165-181]

Cited: 3 times

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Updating the proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs.

Stefanie Dietz, Christian Lassek, Sarah-Lena Mack, Mathias Ritzmann, Julia Stadler, Dörte Becher, Katharina Hoelzle, Katharina Riedel, Ludwig E Hoelzle,

Mycoplasma suis belongs to the hemotrophic mycoplasmas that are associated with acute and chronic anemia in a wide range of livestock and wild animals. The inability to culture M. suis in vitro has hindered its characterization at the molecular level. Since the publication of M. suis genome sequences in 2011 ... Read more >>

Proteomics (Proteomics)
[2016, 16(4):609-613]

Cited: 0 times

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Correction: Spatial Variation of the Gut Microbiota in Broiler Chickens as Affected by Dietary Available Phosphorus and Assessed by T-RFLP Analysis and 454 Pyrosequencing.

Maren Witzig, Amelia Camarinha-Silva, Rebecca Green-Engert, Katharina Hoelzle, Ellen Zeller, Jana Seifert, Ludwig E Hoelzle, Markus Rodehutscord,

PLoS ONE (PloS one)
[2015, 10(12):e0145588]

Cited: 2 times

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Spatial Variation of the Gut Microbiota in Broiler Chickens as Affected by Dietary Available Phosphorus and Assessed by T-RFLP Analysis and 454 Pyrosequencing.

Maren Witzig, Amelia Carminha-Silva, Rebecca Green-Engert, Katharina Hoelzle, Ellen Zeller, Jana Seifert, Ludwig E Hoelzle, Markus Rodehutscord,

Molecular fingerprinting and sequencing based techniques have been widely used to characterize microbial communities. Terminal restriction fragment length polymorphism (T-RFLP) and 454-pyrosequencing were used to determine the microorganisms present in the different sections of the chicken gastrointestinal tract (GIT) (crop, jejunum, ileum and caeca). Broilers fed with diets differing in ... Read more >>

PLoS ONE (PloS one)
[2015, 10(11):e0143442]

Cited: 14 times

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The impact of phosphorus on the immune system and the intestinal microbiota with special focus on the pig.

Charlotte M E Heyer, Eva Weiss, Sonja Schmucker, Markus Rodehutscord, Ludwig E Hoelzle, Rainer Mosenthin, Volker Stefanski,

There is increasing interest in dietary ingredients that are appropriate to support digestive and immune functions, but also maintain a stable microbial ecosystem in the gastrointestinal tract (GIT), particularly in weaned pigs. P is an essential nutrient for both microbes and their host, as it is involved, for example, in ... Read more >>

Nutr Res Rev (Nutrition research reviews)
[2015, 28(1):67-82]

Cited: 6 times

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Interactions between supplemented mineral phosphorus and phytase on phytate hydrolysis and inositol phosphates in the small intestine of broilers1,2.

Ellen Zeller, Margit Schollenberger, Maren Witzig, Yauheni Shastak, Imke Kühn, Ludwig E Hoelzle, Markus Rodehutscord,

Phytate breakdown in the digestive tract of broilers is affected by supplements of mineral phosphorus (P) and phytase with unknown interactions between the 2 factors. It was the objective to study phytate hydrolysis and the presence of inositol phosphate isomers (InsPs) as affected by supplements of mineral P and phytase ... Read more >>

Poult. Sci. (Poultry science)
[2015, 94(5):1018-1029]

Cited: 23 times

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Pathobiology of Mycoplasma suis.

Ludwig E Hoelzle, Michael Zeder, Kathrin M Felder, Katharina Hoelzle,

Mycoplasma suis is an uncultivable bacterium lacking a cell wall that attaches to and may invade the red blood cells of pigs. M. suis infections occur worldwide and cause the pig industry serious economic losses due to the disease known as infectious anaemia of pigs or, historically, porcine eperythrozoonosis. Infectious ... Read more >>

Vet. J. (Veterinary journal (London, England : 1997))
[2014, 202(1):20-25]

Cited: 7 times

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Quantitative PCR analysis of Mycoplasma suis shedding patterns during experimental infection.

Stefanie Dietz, Sarah-Lena Mack, Katharina Hoelzle, Katja Becker, Carolin Jannasch, Julia Stadler, Mathias Ritzmann, Ludwig E Hoelzle,

The uncultivable hemotrophic bacterium Mycoplasma suis causes infectious anemia in pigs worldwide. The mechanisms by which M. suis is transmitted from pig to pig are largely unknown. Thus, the present study aimed at investigating urine, feces, saliva, nasal and vaginal secrets as well as environmental samples for the presence of ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2014, 172(3-4):581-585]

Cited: 4 times

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Differences in the antigen structures of Corynebacterium pseudotuberculosis and the induced humoral immune response in sheep and goats.

Ludwig E Hoelzle, Tanja Scherrer, Jeanette Muntwyler, Max M Wittenbrink, Werner Philipp, Katharina Hoelzle,

Caseous lymphadenitis (CLA), a disease affecting sheep and goats, is caused by Corynebacterium pseudotuberculosis (Cp). Eradication programs are based on the serological identification of Cp infected animals. However, available diagnostic ELISAs are not similarly suitable for sheep and goats. In the present study the comparison of antigens revealed major species ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2013, 164(3-4):359-365]

Cited: 3 times

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Nanotransformation of the haemotrophic Mycoplasma suis during in vitro cultivation attempts using modified cell free Mycoplasma media.

Sabrina A Schreiner, Katharina Hoelzle, Regina Hofmann-Lehmann, Anja Hamburger, Max M Wittenbrink, Manuela M Kramer, Albina Sokoli, Kathrin M Felder, Katrin Groebel, Ludwig E Hoelzle,

Mycoplasma suis belongs to haemotrophic mycoplasmas (HMs) which cause infectious anaemia in a large variety of mammals. To date, no in vitro cultivation system for M. suis or other HMs has been established. We hypothesised that M. suis could grow in classical Mycoplasma media supplemented with nutrients (e.g. glucose, iron-binding ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2012, 160(1-2):227-232]

Cited: 4 times

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Occurrence of hemotrophic mycoplasmas in horses with correlation to hematological findings.

Sarah M Dieckmann, Katharina Hoelzle, Michael P Dieckmann, Iris Straube, Regina Hofmann-Lehmann, Ludwig E Hoelzle,

Hemotrophic mycoplasmas (HM) are small, cell wall-less bacteria and infections are known for a wide range of animals. One possible indication of equine HM infection was given in 1978, when a 'haemobartonellosis' outbreak was diagnosed in Nigerian horses by microscopy. However the first molecular proof of HM in horses was ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2012, 160(1-2):43-52]

Cited: 3 times

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The surface-localised α-enolase of Mycoplasma suis is an adhesion protein.

Sabrina A Schreiner, Albina Sokoli, Kathrin M Felder, Max M Wittenbrink, Sarah Schwarzenbach, Bruno Guhl, Katharina Hoelzle, Ludwig E Hoelzle,

Mycoplasma suis belongs to the haemotrophic mycoplasmas which colonise red blood cells of a wide range of vertebrates. Adhesion to red blood cells is the crucial step in the unique lifecycle of M. suis. Due to the lack of a cultivation system, identification of adhesion structures has been difficult. So ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2012, 156(1-2):88-95]

Cited: 22 times

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Epizootiologic investigations of selected abortive agents in free-ranging Alpine ibex (Capra ibex ibex) in Switzerland.

Nelson Marreros, Daniela Hüssy, Sarah Albini, Caroline F Frey, Carlos Abril, Hans-Rudolf Vogt, Nathalie Holzwarth, Sophie Wirz-Dittus, Martina Friess, Monika Engels, Nicole Borel, Christian S Willisch, Claudio Signer, Ludwig E Hoelzle, Marie-Pierre Ryser-Degiorgis,

In the early 2000s, several colonies of Alpine ibex (Capra ibex ibex) in Switzerland ceased growing or began to decrease. Reproductive problems due to infections with abortive agents might have negatively affected recruitment. We assessed the presence of selected agents of abortion in Alpine ibex by serologic, molecular, and culture ... Read more >>

J. Wildl. Dis. (Journal of wildlife diseases)
[2011, 47(3):530-543]

Cited: 10 times

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Hemotrophic mycoplasmas induce programmed cell death in red blood cells.

Kathrin M Felder, Katharina Hoelzle, Mathias Ritzmann, Tim Kilchling, Daniela Schiele, Karl Heinritzi, Katrin Groebel, Ludwig E Hoelzle,

Hemotrophic mycoplasmas (HM) are uncultivable bacteria found on and in the red blood cells (RBCs). The main clinical sign of HM infections is the hemolytic anemia. However, anemia-inducing pathogenesis has not been totally clarified. In this work we used the splenectomized pig as animal model and Mycoplasma suis as a ... Read more >>

Cell. Physiol. Biochem. (Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology)
[2011, 27(5):557-564]

Cited: 47 times

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Complete genome sequence of the hemotrophic Mycoplasma suis strain KI3806.

Joern Oehlerking, Michael Kube, Kathrin M Felder, Denise Matter, Max M Wittenbrink, Sarah Schwarzenbach, Manuela M Kramer, Katharina Hoelzle, Ludwig E Hoelzle,

Mycoplasma suis, a member of the hemotrophic mycoplasma (HM) group, parasitize erythrocytes of pigs. Increasing evidence suggests that M. suis is also a zoonotic agent. Highly pathogenic strains of M. suis (e.g., M. suis KI3806) have been demonstrated to invade erythrocytes. This complete sequenced and manually annotated genome of M. ... Read more >>

J. Bacteriol. (Journal of bacteriology)
[2011, 193(9):2369-2370]

Cited: 22 times

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A gel-free quantitative proteomics approach to investigate temperature adaptation of the food-borne pathogen Cronobacter turicensis 3032.

Paula Carranza, Alexander Grunau, Thomas Schneider, Isabel Hartmann, Angelika Lehner, Roger Stephan, Peter Gehrig, Jonas Grossmann, Katrin Groebel, Ludwig E Hoelzle, Leo Eberl, Kathrin Riedel,

The opportunistic food-borne pathogen Cronobacter sp. causes rare but significant illness in neonates and is capable to grow at a remarkably wide range of temperatures from 5.5 to 47 degrees C. A gel-free quantitative proteomics approach was employed to investigate the molecular basis of the Cronobacter sp. adaptation to heat ... Read more >>

Proteomics (Proteomics)
[2010, 10(18):3248-3261]

Cited: 11 times

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'Candidatus Mycoplasma haemobos', a new bovine haemotrophic Mycoplasma species?

Katharina Hoelzle, Regina Hofmann-Lehmann, Ludwig E Hoelzle,

Vet. Microbiol. (Veterinary microbiology)
[2010, 144(3-4):525-526]

Cited: 5 times

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Inorganic pyrophosphatase in uncultivable hemotrophic mycoplasmas: identification and properties of the enzyme from Mycoplasma suis.

Katharina Hoelzle, Simone Peter, Michele Sidler, Manuela M Kramer, Max M Wittenbrink, Kathrin M Felder, Ludwig E Hoelzle,

BACKGROUND: Mycoplasma suis belongs to a group of highly specialized hemotrophic bacteria that attach to the surface of host erythrocytes. Hemotrophic mycoplasmas are uncultivable and the genomes are not sequenced so far. Therefore, there is a need for the clarification of essential metabolic pathways which could be crucial barriers for ... Read more >>

BMC Microbiol. (BMC microbiology)
[2010, 10:194]

Cited: 8 times

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Haemotrophic Mycoplasma infection in horses.

Sarah M Dieckmann, Margit Winkler, Katrin Groebel, Michael P Dieckmann, Regina Hofmann-Lehmann, Katharina Hoelzle, Max M Wittenbrink, Ludwig E Hoelzle,

Haemotrophic mycoplasmas (HM) are parasites on the surface of red blood cells and known to infect a wide range of animals. However, there are no previous evidences of HM infections in horses. In this study HM were detected for the first time in the blood of two horses suffering from ... Read more >>

Vet. Microbiol. (Veterinary microbiology)
[2010, 145(3-4):351-353]

Cited: 9 times

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Antibodies to actin in autoimmune haemolytic anaemia.

Kathrin M Felder, Katharina Hoelzle, Karl Heinritzi, Mathias Ritzmann, Ludwig E Hoelzle,

BACKGROUND: In autoimmune haemolytic anaemia (AIHA), autoreactive antibodies directed against red blood cells are up-regulated, leading to erythrocyte death. Mycoplasma suis infections in pigs induce AIHA of both the warm and cold types. The aim of this study was to identify the target autoantigens of warm autoreactive IgG antibodies. Sera ... Read more >>

BMC Vet. Res. (BMC veterinary research)
[2010, 6:18]

Cited: 10 times

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