27 research outputs found
Optical properties of the human round window membrane
Optical techniques are effective tools for diagnostic applications in medicine and are particularly attractive for the noninvasive analysis of biological tissues and fluids in vivo. Noninvasive examinations of substances via a fiber optic probe need to consider the optical properties of biological tissues obstructing the optical path. This applies to the analysis of the human perilymph, which is located behind the round window membrane. The composition of this inner ear liquid is directly correlated to inner ear hearing loss. In this work, experimental methods for studying the optical properties of the human round window membrane ex vivo are presented. For the first time, a comprehensive investigation of this tissue is performed, including optical transmission, forward scattering, and Raman scattering. The results obtained suggest the application of visible wavelengths (>400nm) for investigating the perilymph behind the round window membrane in future. © 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Development of early gastric cancer 4 and 5 years after complete remission of Helicobacter pylori associated gastric low grade marginal zone B cell lymphoma of MALT type
Visualization of Lymphoepithelial Lesions in Gastric Mucosa-Associated Lymphoid Tissue–Type Lymphoma by Miniprobe Confocal Laser Microscopy
Su1692 Metaanalysis: Moxifloxacin Triple Therapy for First-Line and Rescue Treatment of Helicobacter pylori Infection
Sa1149 - Efficacy of Topical Corticosteroids in Different Formulations for Eosinophilic Esophagitis: A Meta-Analysis of Randomized Placebo-Controlled Trials
T1171 Miniprobe Confocal Laser Microscopy Imaging in Gastrointestinal Graft-Versus-Host Disease
T1123 Oral Budesonide for Maintenance Treatment of Collagenous Colitis: A Randomised, Placebo-Controlled, Double-Blind Trial
Bedeutung der Helicobacter-pylori-Infektion fĂĽr die Pathogenese und Therapie von MALT-Lymphomen des Magens
Seit 1983 ist das Konzept des Mukosa-assoziierten lymphatischen Gewebes (MALT) im Magen auf dem Boden einer chronischen Helicobacter(H.)-pylori-Infektion bekannt. Viele epidemiologische, biologische und molekulargenetische Studien haben die Rolle von H. pylori in der Lymphomgenese unterstützt. Bis heute wurden weltweit mehr als 650 Patienten mit gastralem MALT-Lymphom und H.-pylori-Infektion antibiotisch behandelt. Bei etwa 75% der Fälle kann mit Hilfe dieser Therapie eine komplette Lymphomremission induziert werden. Klinische prädiktive Faktoren helfen dabei, Patienten bezüglich ihres Risikos besser zu stratifizieren und damit die Probabilität des Ansprechens zu verbessern. Neue zytogenetische Erkenntnisse haben zudem dazu beigetragen, ein besseres Verständnis der Lymphomgenese zu erlangen. Mit der kürzlich beschrieben Translokation t(11;18) (q21;q21) könnte in Zukunft ein prädiktiver genetischer Faktor verfügbar sein.The Role of Helicobacter pylori Infection for the Development and Treatment of Gastric MALT Lymphomas Since 1983, it is well known that mucosa-associated lymphoid tissue (MALT)-type lymphoma of the stomach is due to chronic Helicobacter pylori (H. pylori) infection. Many epidemiological, biological, and moleculargenetic studies have implicated the role of H. pylori in lymphomagenesis. Nowadays, more than 650 patients with gastric MALT lymphoma worldwide have been treated with antibiotics for H. pylori infection, achieving a complete remission in about 75% of cases. Clinical predictive factors help to stratify patients into risk groups, and help to predict the probability of lymphoma remission. New insights into cytogenetics have also contributed to the understanding of lymphomagenesis, and with the newly identified translocation t(11;18)(q21;q21) we might have also a genetic factor at hand to predict treatment response.Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich