Christoph Hogenauer

Summary

Affiliation: Medical University of Graz
Country: Austria

Publications

  1. ncbi Klebsiella oxytoca as a causative organism of antibiotic-associated hemorrhagic colitis
    Christoph Hogenauer
    Department of Internal Medicine, Medical University of Graz, Graz, Austria
    N Engl J Med 355:2418-26. 2006
  2. ncbi Evaluation of a new DNA test compared with the lactose hydrogen breath test for the diagnosis of lactase non-persistence
    Christoph Hogenauer
    Department of Internal Medicine, Medical University of Graz, Austria
    Eur J Gastroenterol Hepatol 17:371-6. 2005
  3. doi Alteration of intestinal dysbiosis by fecal microbiota transplantation does not induce remission in patients with chronic active ulcerative colitis
    Patrizia K Kump
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    Inflamm Bowel Dis 19:2155-65. 2013
  4. pmc Cytotoxic effects of Klebsiella oxytoca strains isolated from patients with antibiotic-associated hemorrhagic colitis or other diseases caused by infections and from healthy subjects
    Martina M Joainig
    Institute of Molecular Biosciences, University of Graz, Graz, Austria
    J Clin Microbiol 48:817-24. 2010
  5. doi Role of Klebsiella oxytoca in antibiotic-associated diarrhea
    Ines Zollner-Schwetz
    Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    Clin Infect Dis 47:e74-8. 2008
  6. pmc Genotypes of Klebsiella oxytoca isolates from patients with nosocomial pneumonia are distinct from those of isolates from patients with antibiotic-associated hemorrhagic colitis
    Kathrin A T Herzog
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    J Clin Microbiol 52:1607-16. 2014
  7. pmc Alterations in the colonic microbiota in response to osmotic diarrhea
    Gregor Gorkiewicz
    Institute of Pathology, Medical University of Graz, Graz, Austria
    PLoS ONE 8:e55817. 2013
  8. doi Manifestations of juvenile polyposis syndrome in SMAD4 mutation carriers of a kindred
    Verena Schwetz
    Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, Graz, Austria
    Eur J Gastroenterol Hepatol 24:988-94. 2012
  9. doi Antibiotic-associated hemorrhagic colitis caused by cytotoxin-producing Klebsiella oxytoca
    K Martin Hoffmann
    Department of Pediatrics and Adolescent Medicine, Medical University Graz, Austria, Auenbruggerplatz 30, A 8036 Graz, Austria
    Pediatrics 125:e960-3. 2010
  10. ncbi Opposing roles of prostaglandin d2 receptors in ulcerative colitis
    Eva M Sturm
    Institute of Experimental and Clinical Pharmacology, Medical University of Graz, 8010 Graz, Austria
    J Immunol 193:827-39. 2014

Collaborators

Detail Information

Publications20

  1. ncbi Klebsiella oxytoca as a causative organism of antibiotic-associated hemorrhagic colitis
    Christoph Hogenauer
    Department of Internal Medicine, Medical University of Graz, Graz, Austria
    N Engl J Med 355:2418-26. 2006
    ..Antibiotic-associated hemorrhagic colitis is a distinct form of antibiotic-associated colitis in which Clostridium difficile is absent. Although the cause is not known, previous reports have suggested a role of Klebsiella oxytoca...
  2. ncbi Evaluation of a new DNA test compared with the lactose hydrogen breath test for the diagnosis of lactase non-persistence
    Christoph Hogenauer
    Department of Internal Medicine, Medical University of Graz, Austria
    Eur J Gastroenterol Hepatol 17:371-6. 2005
    ..We therefore compared the value of DNA testing for this variant (DNA test) with the lactose hydrogen breath test (H2 test), which is the clinical standard for the diagnosis of lactase non-persistence...
  3. doi Alteration of intestinal dysbiosis by fecal microbiota transplantation does not induce remission in patients with chronic active ulcerative colitis
    Patrizia K Kump
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    Inflamm Bowel Dis 19:2155-65. 2013
    ..The aims of the present study were to investigate if patients with UC benefit from FMT and if dysbiosis can be reversed...
  4. pmc Cytotoxic effects of Klebsiella oxytoca strains isolated from patients with antibiotic-associated hemorrhagic colitis or other diseases caused by infections and from healthy subjects
    Martina M Joainig
    Institute of Molecular Biosciences, University of Graz, Graz, Austria
    J Clin Microbiol 48:817-24. 2010
    ..The ability to induce disease after antibiotic treatment most likely represents an overgrowth of the toxin-producing bacterium due to an alteration of the normal colonic microflora...
  5. doi Role of Klebsiella oxytoca in antibiotic-associated diarrhea
    Ines Zollner-Schwetz
    Section of Infectious Diseases, Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    Clin Infect Dis 47:e74-8. 2008
    ..Because it is unclear whether K. oxytoca also causes nonhemorrhagic antibiotic-associated diarrhea, our study investigated a possible association between K. oxytoca and that disorder...
  6. pmc Genotypes of Klebsiella oxytoca isolates from patients with nosocomial pneumonia are distinct from those of isolates from patients with antibiotic-associated hemorrhagic colitis
    Kathrin A T Herzog
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    J Clin Microbiol 52:1607-16. 2014
    ..Applications of this MLST analysis should help clarify the sources of nosocomial infections. ..
  7. pmc Alterations in the colonic microbiota in response to osmotic diarrhea
    Gregor Gorkiewicz
    Institute of Pathology, Medical University of Graz, Graz, Austria
    PLoS ONE 8:e55817. 2013
    ..Whether dysbiosis is due to the disease itself or to the accompanying diarrhea remains elusive. With this study we characterized the net effects of osmotic diarrhea on the composition of the GI microbiota in the absence of disease...
  8. doi Manifestations of juvenile polyposis syndrome in SMAD4 mutation carriers of a kindred
    Verena Schwetz
    Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, Graz, Austria
    Eur J Gastroenterol Hepatol 24:988-94. 2012
    ..Interestingly, the manifestations and their severity differed considerably between the patients, suggesting secondary factors influencing JPS manifestations such as Helicobacter pylori infection...
  9. doi Antibiotic-associated hemorrhagic colitis caused by cytotoxin-producing Klebsiella oxytoca
    K Martin Hoffmann
    Department of Pediatrics and Adolescent Medicine, Medical University Graz, Austria, Auenbruggerplatz 30, A 8036 Graz, Austria
    Pediatrics 125:e960-3. 2010
    ..Establishing the diagnosis of AAHC by culturing K oxytoca and demonstrating right-sided colitis with noninvasive imaging studies might prevent unnecessary invasive procedures in children with bloody diarrhea...
  10. ncbi Opposing roles of prostaglandin d2 receptors in ulcerative colitis
    Eva M Sturm
    Institute of Experimental and Clinical Pharmacology, Medical University of Graz, 8010 Graz, Austria
    J Immunol 193:827-39. 2014
    ..Although expression of CRTH2 on blood leukocytes is downregulated in UC, CRTH2 is present in colon tissue, where it may contribute to inflammation, whereas DP most likely promotes anti-inflammatory actions. ..
  11. doi Pneumatosis coli--an underrecognized lesion mimicking neoplastic disease
    Karin Amrein
    Department of Internal Medicine, Medical University Graz, Graz, Austria
    Wien Klin Wochenschr 123:515-8. 2011
    ..Accurate diagnosis, which is mainly based upon endoscopy, computed tomography and histology, is crucial for optimal patient management thus avoiding unnecessary surgical procedures...
  12. ncbi Complete remission of a metastatic gastrointestinal stromal tumour with the tyrosine kinase inhibitor imatinib (STI 571): effect of low dosage in an advanced tumour with exon 11 mutation
    Christoph Hogenauer
    Department of Internal Medicine, Karl Franzens University, Graz, Austria
    Eur J Gastroenterol Hepatol 15:323-7. 2003
    ..No serious side effects were seen with imatinib. A 21 bp, exon 11, in-frame mutation of the c-kit gene was found by DNA sequence analysis of tumour tissue...
  13. ncbi Juvenile polyposis of the stomach causing recurrent upper gastrointestinal bleeding
    Alexandra Winkler
    Institute of Pathology, Medical University Graz, Graz, Austria
    Eur J Gastroenterol Hepatol 19:87-90. 2007
    ..Thus, although rare, the disease has to be considered in the differential diagnosis of patients with acute upper gastrointestinal tract bleeding...
  14. pmc Multiplex genetic cancer testing identifies pathogenic mutations in TP53 and CDH1 in a patient with bilateral breast and endometrial adenocarcinoma
    Ellen Heitzer
    Institute of Human Genetics, Medical University of Graz, Harrachgasse 21 8, A 8010 Graz, Austria
    BMC Med Genet 14:129. 2013
    ..In recent years the way genetic testing carried out has changed, as next generation sequencing now allows the simultaneous testing of multiple susceptibility genes at low costs...
  15. pmc A physicians' wish list for the clinical application of intestinal metagenomics
    Ingeborg Klymiuk
    Core Facility Molecular Biology, Center for Medical Research, Medical University of Graz, Graz, Austria
    PLoS Med 11:e1001627. 2014
    ..Please see later in the article for the Editors' Summary. ..
  16. pmc Distribution of CD4(pos) -, CD8(pos) - and regulatory T cells in the upper and lower gastrointestinal tract in healthy young subjects
    Martin Tauschmann
    Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    PLoS ONE 8:e80362. 2013
    ....
  17. pmc The ignored diversity: complex bacterial communities in intensive care units revealed by 16S pyrosequencing
    Lisa Oberauner
    Austrian Centre of Industrial Biotechnology ACIB GmbH, Graz, Austria
    Sci Rep 3:1413. 2013
    ..This information will allow for new assessment of public health risks in ICUs, help create new sanitation protocols, and further our understanding of the development of hospital-acquired infections...
  18. doi A case of opportunistic skin infection with Mycobacterium marinum during adalimumab treatment in a patient with Crohn's disease
    Patrizia K Kump
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Austria
    J Crohns Colitis 7:e15-8. 2013
    ..In this patient anti-TNF therapy had to be reintroduced because of increasing activity with no relapse of M. marinum after a follow-up of 12 months...
  19. doi Diarrhea in the immunocompromised patient
    Elisabeth Krones
    Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
    Gastroenterol Clin North Am 41:677-701. 2012
    ..It also deals with diarrhea in specific situations, eg, after hematopoietic stem cell or solid organ transplantation, diarrhea induced by immunosuppressive drugs, and diarrhea in congenital immunodeficiency syndromes...
  20. doi Impact of experimental colitis on hepatobiliary transporter expression and bile duct injury in mice
    Jörg Jahnel
    Laboratory of Experimental and Molecular Hepatology, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Medical University Graz, Auenbruggerplatz 15, Graz, Austria
    Liver Int 29:1316-25. 2009
    ..We hypothesized that colitis induces changes in bile composition via inflammation-induced reduction of hepatobiliary transporter gene expression, ultimately resulting in cholestasis and bile duct injury...