Antibiotic

  • A new study shows how dangerous germs travel as stowaways from one continent to another

    Using a special culture, germs from smears can be recognized and identified. Photo: WWU/H. Dornhege

    As scientists from Münster University, in collaboration with the Robert Koch Institute in Berlin, have now demonstrated, toilets at airports are also a “transfer point” for germs. These include germs against which traditional antibiotics for the treatment of bacterial infections are not, or only partially, effective.
    Münster (mfm/sm) – Everyday life at an airport: there’s still time before the jet taking passengers to faraway countries takes off – time enough for a quick visit to the toilet. What awaits passengers there is not always a pleasant sight. However, what they don’t see can be much worse. As scientists from Münster University, in collaboration with the Robert Koch Institute in Berlin, have now demonstrated, toilets at airports are also a “transfer point” for germs.

  • Antibiotika-resistentes mcr-1-Gen erstmals bei Patientenprobe aus 2012 nachgewiesen

    Die Mikrobiologen Dr. Jörg Wüllenweber und Dr. Franziska Schuler konnten in aufbewahrten Isolaten nun erstmals das Colistin-resistente mcr-1-Gen bei einer Patientenprobe aus dem Jahr 2012 nachweisen.   UKM

    Keim ist gegen das Reserve- und Notfall-Antibiotikum Colistin resistent / Mikrobiologen des UKM gelingt einer der ersten Nachweise beim Menschen in Deutschland

  • Bakterien aus dem Blut «ziehen»

    Bakterien können mit magnetischer Blutreinigung entfernt werden (links). Eine Lösung mit magnetischen Eisenpartikeln (oben rechts), kann mitt einem Magneten "gereinigt" werden (unten rechts). Empa

    Magnete statt Antibiotika, das könnte eine mögliche neue Behandlungsmethode bei Blutvergiftungen sein. Dazu wird das Blut der Patienten mit magnetischen Eisenpartikeln versetzt, die die Bakterien an sich binden, ehe sie durch Magnete aus dem Blut entfernt werden. Erste Laborversuche sind an der Empa in St. Gallen gelungen – und erfolgversprechend. Blutvergiftungen enden auch heutzutage noch in über 50% der Fälle tödlich, lassen sich aber im Anfangsstadium durchaus kurieren. Daher ist oberstes Gebot, schnell zu handeln. Aus diesem Grund verabreichen Ärzte meist schon bei einem Verdacht auf Blutvergiftung Antibiotika, ohne vorher abzuklären, ob es sich tatsächlich um eine bakterielle Sepsis handelt, was wiederum die Gefahr für Resistenzen massiv erhöht. Es gilt also, eine schnelle und effektive Therapie zu finden, möglichst ohne auf Antibiotika zurückgreifen zu müssen.

  • Constricting without a string: Bacteria gone to the worms divide differently

    The rod-shaped bacteria densely populating the surface of the worm belong to the Gammaproteobacteria. These comprise members of our gut microbiome but also some serious pathogens. Nikolaus Leisch

    A new study provides fascinating insights into how bacteria divide. This shows not only how little we know about bacteria outside of the lab, but might also bring us one step closer towards the development of new antibiotics.

  • Körpereigene Nanopartikel als Transporter für Antibiotika

    Dr. Gregor Fuhrmann vom Helmholtz-Institut für Pharmazeutische Forschung Saarland (HIPS). G. Fuhrmann

    Neue BMBF-Nachwuchsgruppe um Gregor Fuhrmann erforscht, wie Medikamente gezielt zu Krankheitserregern im Körper geschleust werden können. Bakterien entwickeln zunehmend Resistenzen gegen die gängig eingesetzten Antibiotika – unter anderem als Folge der übermäßigen und zum Teil falschen Anwendung der Medikamente. Zudem haben Antibiotika häufig unangenehme Nebenwirkungen, da sie auch nützliche Bakterien abtöten. Der Pharmazeut Dr. Gregor Fuhrmann, Wissenschaftler am Helmholtz-Institut für Pharmazeutische Forschung Saarland (HIPS), möchte eine Technologie entwickeln, mit der Antibiotika im Körper gezielt zu den krankmachenden Bakterien transportiert werden.

  • Peptides vs. superbugs

    An X-ray capillary that is being filled in order to analyze the nanostructure of the shuttle system. Empa

    Several peptides have an antibacterial effect - but they are broken down in the human body too quickly to exert this effect. Empa (Swiss Federal Laboratories for Materials Science and Technology) researchers have now succeeded in encasing peptides in a protective coat, which could prolong their life in the human body. This is an important breakthrough because peptides are considered to be a possible solution in the fight against antibiotic-resistant bacteria. They occur in many organisms and constitute natural weapons against bacteria in the body, being known as antimicrobial peptides.

  • Personalized antibiotic treatment

    The electrochemical biosensor system for point-of-care testing. Photo: Andreas Weltin

    Researchers from Freiburg have developed a sensor platform that quantifies antibiotics in human blood within minutes. A team of researchers from the University of Freiburg has developed a system inspired by biology that can detect several different antibiotics in human blood or other fluids at the same time. This biosensor system could be used for medical diagnostics in the future, especially for point-of-care testing in doctors’ practices, on house calls and in pharmacies, as well as in environmental and food safety testing. The researchers focused their study on the antibiotics tetracycline and streptogramin in human blood.

  • Research against antibiotic resistance

    The paper disks have different antibiotics: Antibiotics in the discs in the culture on the left prevent bacteria from proliferating. Bacteria in the culture on the right are resistant to most of the antibiotics.

    The Swiss National Science Foundation is launching the National Research Programme “Antimicrobial Resistance”, which aims to develop new solutions to ensure that antibiotics remain effective. Worldwide, more and more pathogens are becoming resistant to today’s antibiotics. The aim of European Antibiotic Awareness Day on 18 November 2016 is to highlight the fact that medicines are losing their effectiveness as a result and that once easy-to-treat infections are turning into deadly diseases. To counteract this development, the Swiss National Science Foundation (SNSF) is launching the National Research Programme “Antimicrobial Resistance” (NRP 72).

  • Worrying traces of resistant bacteria in air

    Two photos taken in the same location in Beijing in August 2005. The photograph on the left was taken after it had rained for two days. The right photograph shows smog covering Beijing in what would otherwise be a sunny day.

    Polluted city air has now been identified as a possible means of transmission for resistant bacteria. Researchers in Gothenburg have shown that air samples from Beijing contain DNA from genes that make bacteria resistant to the most powerful antibiotics we have. “This may be a more important means of transmission than previously thought,” says Joakim Larsson, a professor at Sahlgrenska Academy and director of the Centre for Antibiotic Resistance Research at the University of Gothenburg.