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Weissbuch Gastroenterologie 2020/2021. Erkrankungen des Magen-Darm-Traktes, der Leber und der Bauchspeicheldrüse – Gegenwart und Zukunft

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ISBN: 9783110642513 Year: Pages: 312 DOI: 10.1515/9783110642513 Language: German
Publisher: De Gruyter
Subject: Medicine (General)
Added to DOAB on : 2019-11-06 16:06:17
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After cardiovascular illnesses, non-malignant diseases of the digestive tract are the most common illnesses affecting Germans, resulting in around 2 million hospitalizations every year. With the updated White Paper, the German Society for Digestive and Metabolic Diseases (DGVS) offers a validated scientific and statistical foundation to underpin the discussion of the present and future status of gastrointestinal diseases in Germany.

Effects of Mycotoxins on the Intestine

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ISBN: 9783038977827 9783038977834 Year: Pages: 262 DOI: 10.3390/books978-3-03897-783-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Public Health
Added to DOAB on : 2019-05-09 17:16:14
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Mycotoxins are secondary metabolites produced by several fungal species. They can contaminate human food and animal feed, and have been a threat for thousands of years. The gastrointestinal tract is the first target when ingesting mycotoxin-contaminated food or feed. As unlikely as it sounds, the investigations concerning the effects of mycotoxins on the intestine are still in their early stages. This book gathers the most recent advances related to the characterization of the intestinal toxicity of mycotoxins. Substantial data assembled on the damage caused to a number of histological structures and functions of the intestine remove any remaining doubt about this organ being a primary target for the toxicity of mycotoxins. An interesting overview of the detrimental effects of mycotoxins on the gut-hosted microbiota—now regarded as a fully-fledged organ associated with the gut—is also given. Finally, outstanding contributions in this book address questions relating to the suitability of current regulations to protect against alterations of the intestine, and to the efficacy assessment of new detoxification strategies using the intestinal toxicity of mycotoxins as a relevant endpoint.

Keywords

mice --- aflatoxin B1 --- intestinal bacterial flora --- response --- Clostridium sp. WJ06 --- deoxynivalenol --- pig --- intestinal morphology --- microbial diversity --- aflatoxin M1 --- ochratoxin A --- intestinal epithelial cells --- tight junction --- permeability --- ileum --- jejunum --- deoxynivalenol --- piglet --- contaminated feed --- tight junction --- aflatoxin B1 --- small intestine --- histopathological lesions --- ultrastructural changes --- toll-like receptors --- T-2 toxin --- enteric nervous system --- pig --- vasoactive intestinal polypeptide --- mycotoxins --- zearalenone --- deoxynivalenol --- histology --- ultrastructure --- large intestine --- pig --- Claviceps --- liver --- digestive tract --- mycotoxin --- sclerotia --- ergot alkaloids --- toxicity --- deoxynivalenol --- Saccharomyces cerevisiae boulardii CNCM I-1079 --- intestine --- transcriptome --- inflammation --- oxidative stress --- lipid metabolism --- fumonisin --- microbiota --- pigs --- MiSeq 16S rDNA sequencing --- intestinal microbiota --- hydrogen-rich water --- lactulose --- Fusarium mycotoxins --- piglets --- functional oligosaccharides --- mycotoxins --- swine --- explant technique --- intestinal morphology --- goblet cells --- deoxynivalenol --- zearalenone --- pig --- colon microbiota --- Lactobacillus --- detoxification --- zearalenone --- doses --- caecal water --- genotoxicity --- pre-pubertal gilts --- atlantic salmon --- deoxynivalenol --- feed --- intestine --- PCR --- proliferating cell nuclear antigen --- suppressor of cytokine signaling --- tight junctions --- Zearalenone --- N-acetylcysteine --- SIEC02 cells --- Mitochondrial apoptosis --- n/a

Gastrointestinal Variables and Drug Absorption: Experimental, Computational and In Vitro Predictive Approaches

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ISBN: 9783039284924 9783039284931 Year: Pages: 206 DOI: 10.3390/books978-3-03928-493-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Therapeutics
Added to DOAB on : 2020-04-07 23:07:09
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This book presents some of the state-of-the-art methods for the study of the gastrointestinal variables affecting oral drug absorption. Practical applications of new in vitro release/dissolution methods are presented, as well as in vitro permeability studies to explore segmental differences. The application of MRI methods for the study of colon physiology is presented to illustrate its potential applications in controlled release dosage form design. Some examples of successful in vitro–in vivo correlations show how implementing the gastrointestinal physiological variables in the new in vitro methods can improve the predictions of in vivo drug product performance. The book contains an updated review of the experimental, computational, and in vivo approaches for measuring intestinal permeability.

Carotenoids and Human Health

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ISBN: 9783039218325 9783039218332 Year: Pages: 308 DOI: 10.3390/books978-3-03921-833-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2020-01-07 09:08:26
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Carotenoids are a group of approximately 600 compounds synthesized by photosynthetic organisms. These pigments are abundant in fruits and vegetables, as well as in certain animal products such as eggs and salmon, being responsible for their colorful appearance. The bioactive properties of certain carotenoids in human health are clear, as some of these compounds have antioxidant properties and serve as the only precursors of vitamin A in nature. The aim of this Special Issue entitled “Carotenoids and Human Health” is to provide the scientific community with an updated perspective of this exciting and growing research area. We compiled 19 papers from some of the most prominent scientists in the carotenoid field, including seven literature reviews and 12 original publication, covering topics such as cancer, obesity, vision, cognitive function, and skin health.

Keywords

carotenoids --- lycopene --- gastric cancer --- H. pylori --- smoking --- case-control study --- Korea --- cancer-related cognitive impairment --- cognition --- carotenoid --- memory --- inflammation --- mango by-products --- lutein --- ?-carotene --- ?-tocopherol --- mangiferin --- food ingredients --- astaxanthin --- Akkermansia --- alcoholic fatty liver disease --- inflammation --- gut microbiota --- lycopene --- carotene --- retinoic acid --- retinoid --- vitamin A --- RAR --- RXR --- ?-carotene --- ?-carotene --- ?-cryptoxanthin --- carotenoids --- lutein --- provitamin A --- retinol --- vitamin A --- breastfeeding --- new-born --- full-term mothers --- preterm mothers --- xanthophylls --- carotenes --- lutein --- colostrum --- mature milk --- ?-Cryptoxanthin --- carotenoids --- Caenorhabditis elegans --- fat reduction --- oxidative stress --- transcriptomic analysis --- metabolic syndrome --- aging --- prostate cancer --- tomato --- lycopene --- androgen --- cell culture --- animal --- obesity --- hippocampus --- nutrition --- overweight --- carotenoids --- Phaeodactylum tricornutum --- microalgae --- fucoxanthin --- eicosapentanoic acid --- obesity --- browning --- brown adipose tissue --- carotenes --- xanthophylls --- bioavailability --- intestine --- membrane transporters --- Vitamin A --- adipocyte --- ?-carotene oxygenase 1 --- hypertension --- carotenoids --- tomato extract --- lycopene --- phytoene --- phytofluene --- bioavailability --- glaucoma --- antioxidants --- oxidative stress --- macular pigment --- lutein --- colourless carotenoids --- cosmeceuticals --- functional foods --- nutraceuticals --- nutricosmetics --- photoprotection --- phytoene --- phytofluene --- public health --- nutrition --- chronic disease --- lutein --- zeaxanthin --- lycopene --- beta-carotene --- alpha-carotene --- beta-cryptoxanthin --- adipocytes --- adipose tissue --- brain --- carotenoids --- obesity --- retinoids --- carotenoids --- bioactive compounds

Transmucosal Absorption Enhancers in the Drug Delivery Field

Authors: --- ---
ISBN: 9783039218486 9783039218493 Year: Pages: 406 DOI: 10.3390/books978-3-03921-849-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Therapeutics --- Medicine (General)
Added to DOAB on : 2020-01-30 16:39:46
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Development of strategies to assist the movement of poorly permeable molecules across biological barriers has long been the goal of drug delivery science. In the last three decades, there has been an exponential increase in advanced drug delivery systems that aim to address this issue. However, most proprietary delivery technologies that have progressed to clinical development are based on permeation enhancers (PEs) that have a history of safe use in man. This Special Issue entitled “Transmucosal Absorption Enhancers in the Drug Delivery Field” aims to present the current state-of-the-art in the application of PEs to improve drug absorption. Emphasis is placed on identification of novel permeation enhancers, mechanisms of barrier alteration, physicochemical properties of PEs that contribute to optimal enhancement action, new delivery models to assess PEs, studies assessing safety of PEs, approaches to assist translation of PEs into effective oral, nasal, ocular and vaginal dosage forms and combining PEs with other delivery strategies.

Keywords

absorption enhancers --- sugar-based surfactants --- biocompatibility studies --- transmucosal drug delivery --- intestinal permeation enhancers --- sodium cholate (NaC) --- N-dodecyl-?-D-maltoside (DDM) --- small intestine --- enterocyte --- brush border --- tryptophan --- oral delivery --- insulin --- GLP-1 --- intestinal absorption --- amino acid --- cell-penetrating peptide --- combined microsphere --- chitosan --- cyclodextrin --- nasal delivery --- nose to brain transport --- penetration enhancer --- nasal formulation --- in vivo studies --- nose to brain delivery --- antiepileptic drug --- drug delivery --- block copolymers --- thermogel system --- chitosan derivatives --- amphiphilic polymers --- polymeric micelles --- quaternization --- curcumin --- intestinal delivery --- mucoadhesiveness --- cervicovaginal tumors --- cationic functionalization --- imatinib --- nanocrystals --- in situ hydrogel --- bioenhancer --- cytochrome P450 --- drug absorption enhancer --- efflux --- metabolism --- P-glycoprotein --- pharmacokinetic interaction --- tight junction --- Aloe vera --- gel --- whole leaf --- absorption enhancement --- Caco-2 --- confocal laser scanning microscopy --- F-actin --- FITC-dextran --- tight junctions --- transepithelial electrical resistance --- permeation enhancer --- oral delivery --- formulation --- permeability --- safety --- simulated intestinal fluid --- hydrophobization --- epithelium --- compound 48/80 --- chitosan --- nanoparticles --- mast cell activator --- vaccine adjuvant --- nasal vaccination --- absorption enhancer --- antimicrobial peptide --- Caco-2 --- claudin --- cell-penetrating peptide (CPP) --- drug delivery --- intestinal epithelial cells --- KLAL --- PN159 --- tight junction modulator --- oral macromolecule delivery --- oral peptides --- sodium caprate --- salcaprozate sodium --- epithelial permeability --- epithelial transport --- nasal permeability --- nose-to-brain --- simvastatin --- nanocapsules --- mucoadhesion --- CNS disorders --- chitosan --- nasal --- pulmonary --- drug administration --- absorption enhancers --- nanoparticle --- and liposome --- absorption enhancer --- gemini surfactant --- intestinal absorption --- poorly absorbed drug --- Caco-2 cells --- PTH 1-34 --- teriparatide --- nasal delivery --- pharmacokinetics --- osteoporosis --- man --- sheep --- clinical trial --- preclinical --- Caco-2 --- intestinal absorption --- nanomedicine --- nanoparticle --- oral delivery --- transferrin --- ocular drug delivery --- cornea --- penetration enhancers --- ocular conditions --- ophthalmology --- permeation enhancers --- absorption modifying excipients --- oral delivery --- nasal delivery --- ocular delivery --- vaginal delivery --- transmucosal permeation

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