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Gastrointestinal infectious diseases are attracting greater attention because of issues of resistance, rising comorbidity, the susceptibility to infection of an aging population, and the problem of infectious diseases associated with migration. High-level medicine places strong requirements on managing complications and preventing infections. Microbiome research promises new approaches to the treatment of gastrointestinal infections. Infektionskrankheiten sind ein stetig wichtiger werdender Bestandteil der Gastroenterologie, werden in der Fort- und Weiterbildung aber bislang noch häufig vernachlässigt. Die gastroenterologische Infektiologie erfährt derzeit einen rasanten Bedeutungszuwachs durch die weitreichenden Resistenzprobleme infolge des häufig ungezielten Einsatzes von Antibiotika (insbesondere MRGN), der zunehmenden Herausforderung einer alternden Bevölkerung mit steigender Komorbidität und Infektionsanfälligkeit sowie durch die besonderen Herausforderungen von migrationsassoziierten Infektionskrankheiten. Komplexe Interventionen in der Hochleistungsmedizin mit ihren spezifischen Infektionsrisiken stellen besondere Anforderungen an das Komplikationsmanagement und die Infektionsprävention. Nicht zuletzt dürfte auch die Mikrobiomforschung neue Ansätze für das Krankheitsverständnis und die Therapiemöglichkeiten von gastrointestinalen Infektionen generieren, wie der bereits als Behandlungsoption bei rezidivierender Clostridium difficile-Infektion etablierte fäkale Mikrobiomtransfer zeigt.

Gastroenteritis. --- Viral gastroenteritis --- Intestines --- Enteric infections --- Intestinal infections --- Virus gastroenteris --- Gastroenteritis --- Virus diseases --- Noroviruses --- Cholera morbus --- Enterogastritis --- Flu, Intestinal --- Flu, Stomach --- Gastrointestinal system --- Intestinal flu --- Stomach flu --- Alimentary canal --- Prevention. --- Infections. --- Inflammation --- Diseases

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The marine environment is considered one of the most important sources of natural bioactive compounds with extremely rich biodiversity. Marine glycans are remarkable molecules, playing a determinant role in biological processes. Marine сarbohydrate-containing substances have drawn increasing attention in the field of biomedicine for their various biological activities, such as antitumor, antivirus, hypoglycemic, immunomodulatory, and anticoagulant. These compounds obtained from marine sources, such as algae, microbes, and animals, are usually biodegradable and biocompatible, and exhibit biological properties that contribute to the discovery of a wide range of new bioactive substances with special pharmacological properties of interest to medicine. Carbohydrate-based compounds include glycans, glycoproteins, proteoglycans, glycolipids, and low-molecular and complex glycosides of differential origin. Many of the polysaccharides allow for loading lower drug dosages, which may lead to a drastic reduction of the side effects caused by the drugs. In addition, the structure of polysaccharides can be relatively easily modified in order to synthesize derivatives with desirable characteristics for drug delivery. Complexes on the basis of carbohydrates are often prepared to improve their functional properties. In this Special Issue, we seek to contribute to the discussion of various aspects of marine carbohydrate-containing compounds and provide a unique platform for a new concept for their use in medicine in order to continue to facilitate further research in this area.

Medicine --- chitosan-gentamicin conjugate --- antimicrobial --- anti-inflammatory --- scald repair --- sulfated polysaccharides --- galactans --- green seaweed --- NMR --- immunostimulation --- inflammatory mediators --- carrageenan --- lipopolysaccharide --- macromolecular structure --- nonspecific resistance to lipopolysaccharide --- cytokines --- enteric infections --- salmonellosis --- glyceroglycolipid metabolism --- phosphate starvation --- transcriptome --- glyceroglycolipid homeostasis --- chitosan --- polyelectrolyte complex --- cytokine --- nitric oxide --- anti-inflammatory activity --- Ulva pertusa --- polysaccharides --- colitis --- antioxidant --- exopolysaccharide --- structure --- Vibrio alginolyticus --- Epidermist --- chitosan oligosaccharides --- inflammation cytokines --- intestine --- oxidative status --- oxidative stress --- Porphyridium marinum --- high pressure homogenizer --- antibacterial activity --- anti-biofilm activity --- anti-cancer activity --- alginate lyase --- cold-adapted --- exo/endo-type --- Alteromonas portus --- oligosaccharide --- antioxidant activity --- exopolysaccharides --- scandium --- theranostic --- cancer cell lines --- proliferation --- laminarin --- fucoidan --- gastrointestinal tract --- microbiome --- swine --- post-weaning --- antibiotic alternatives