Jerzy Jarosz

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The interest of marine invertebrates as food resources provides a major interest to study molluscan immunity for better understanding of the host response to pathogens. Molluscs possess a natural immunity formed by anatomical and chemical protective barriers that prevent damage of the underlying tissues, body fluid losses and the infections of pathogenic(More)
Based on the ability of bacterial associates of entomopathogenic nematodes to produce antibiotic compounds on artificial media, it has been commonly accepted that Xenorhabdus sp. and Photorhabdus sp. inhibit a wide range of invading microorganisms in insects infected with Steinernema spp. or Heterorhabditis spp. Therefore, the question of whether antibiotic(More)
Insect-pathogenic strains of Pseudomonas aeruginosa produce specific proteinase which selectively degrades the cecropin-based defence system of insects. This was demonstrated by the disappearance of the Galleria cecropin and purified Hyalophora cecropin B peptide PAGE bands, but not the lysozyme band, upon exposure to infected extracts and a similar(More)
Advances in biochemistry and molecular biology have made it possible to identify a number of mechanisms active in the immune phenomena of echinoderms. It is obvious that echinoderms have the ability to distinguish between different foreign objects (pathologically changed tissues, microorganisms, parasites, grafts) and to express variable effector mechanisms(More)
  • J Jarosz
  • 1993
1. Pupae of Galleria mellonella and Pieris brassicae given an injection with live, non-pathogenic Enterobacter cloacae or abiotic foreign molecules induce an acquired immunity that corresponds with the synthesis of haemolymph proteins of antibacterial activity. 2. This humoral defensive response which persists for several days, differs quantitatively(More)
Bioassays of American foulbrood larval scale filtrates have shown the presence of an immune inhibitor with a specific activity of proteases that selectively destroy cecropin-like activity in insect immune hemolymphs. It was an unexpected phenomenon to find that Bacillus larvae protease(s), even at trace concentrations, totally inhibits bactericidal activity(More)
Muscular ventricular septal defects (VSD) located below the trabecula saepto-marginalis are difficult to approach for surgical closure through the tricuspid valve. We present the hybrid technique of perventricular closure of VSD in 2- and 5-year old children with complex congenital heart defects, employing an Amplatzer septal occluder, dedicated to(More)
A specific extracellular proteinase, degrading selectively the cecropin-based defence system of insects, is secreted into the larval body during parasitism of the greater wax moth by the Heterorhabditis bacteriophora/Photorhabdus luminescens complex and by phase 1 of P. luminescens. The proteolytic digestion of insect inducible cecropin-like immune(More)
Extracorporeal membrane oxygenation (ECMO) is an established method of treatment for extremely severe respiratory failure (ARDS, acute respiratory distress syndrome), for mechanical circulatory support after cardiac surgery as well as advanced resuscitation technique in specific cases. Severe multidrug poisoning causing an acute cardiovascular insufficiency(More)