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Lipopolysaccharides (LPSs)

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ISBN: 9783039282562 9783039282579 Year: Pages: 390 DOI: 10.3390/books978-3-03928-257-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Allergy and Immunology
Added to DOAB on : 2020-04-07 23:07:08
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Abstract

The cytoplasm of Gram-negative bacteria is bound by three layers: an inner membrane, a layer of peptidoglycan, and an outer membrane. The outer membrane is an asymmetric lipidic bilayer, with phospholipids on its inner surface and lipopolysaccharides (LPSs) on the outside, with the latter being the major component of the outer leaflet and covering nearly three-quarters of the total outer cell surface. All LPSs possess the same general chemical architecture independently of bacterial activity (pathogenic, symbiotic, commensal), ecological niche (human, animal, soil, plant, water), or growth conditions. Endotoxins are large amphiphilic molecules consisting of a hydrophilic polysaccharide component and a covalently bound hydrophobic and highly conserved lipid component, termed lipid A (the endotoxin subunit). The polysaccharide component can be divided into two subdomains: the internal and conserved core region as well as the more external and highly variable O-specific chain, also referred to as the O-antigen due to its immunogenic properties. LPSs are endotoxins, one of the most potent class of activators of the mammalian immune system; they can be released from cell surfaces of bacteria during multiplication, lysis, and death. LPS can act through its biological center (lipid A component) on various cell types, of which macrophages and monocytes are the most important.

Keywords

aspirin --- hepcidin --- P65 (nuclear factor-?B) --- IL-6/JAK2/STAT3 pathway --- lipopolysaccharide (LPS) --- nitric oxide (NO) --- iron regulatory protein 1 (IRP1) --- Megalobrama amblycephala --- lipopolysaccharide induced TNF? factor --- lipopolysaccharide stimulation --- innate immune --- Aeromonas --- genomics --- inner core oligosaccharide --- outer core oligosaccharide --- lipopolysaccharide --- lipopolysaccharide --- Erwinia amylovora --- NMR --- ESI FT-ICR --- structural determination --- Bordetellae --- Bordetella holmesii --- endotoxin --- lipid A --- structure --- mass spectrometry --- genomic --- Edwardsiella tarda --- core oligosaccharide --- MALDI-TOF MS --- ESI MSn --- NMR --- genomic --- LPS tolerance --- hypothalamic inflammation --- insulin resistance --- pJNK --- fibroblast --- keratocyte --- cornea --- lipopolysaccharide --- bacteria --- chemokine --- adhesion molecule --- collagen --- tear fluid --- serum resistance --- complement --- Salmonella --- lipopolysaccharide --- sialic acid --- reptile-associated salmonellosis --- sepsis --- time response --- inflammation --- oxidative stress --- endotoxaemia --- mouse --- rat --- lipopolysaccharide --- double-stranded RNA --- epithelial cell --- dendritic cell --- allergic respiratory disorder --- hygiene hypothesis --- rhinovirus --- respiratory syncytial virus --- toll-like receptor --- LPS --- lipopolysaccharide --- heptosyltransferase --- protein dynamics --- glycosyltransferase --- GT-B --- inhibitor design --- lipopolysaccharide --- Coxiella burnetii --- Q fever --- phagosome --- virenose --- Plesiomonas shigelloides --- O-antigen --- lipopolysaccharide --- O-acetylation --- d-galactan I --- HR-MAS --- NMR spectroscopy --- endotoxin --- lipopolysaccharide --- Low Endotoxin Recovery --- phase transitions --- polysorbate --- LPS aggregates --- Small Angle X-ray Scattering --- MAT --- LAL and LER --- anti-conjugate serum --- core oligosaccharide --- lipopolysaccharide --- NMR spectroscopy --- ESI MS --- Proteus penneri

Biomaterials and Implant Biocompatibility

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ISBN: 9783039282166 9783039282173 Year: Pages: 420 DOI: 10.3390/books978-3-03928-217-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Science (General)
Added to DOAB on : 2020-04-07 23:07:09
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The scientific advances in life sciences and engineering are constantly challenging, expanding, and redefining concepts related to the biocompatibility and safety of medical devices. New biomaterials, new products, and new testing regimes are being introduced to

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carbonate apatite --- hydroxyapatite --- ?-tricalcium phosphate --- artificial bone substitute --- crystallite size --- dissolution rate --- hybrid dog --- bone levels --- dental implants --- neck design --- soft tissue dimensions --- peri-implantitis --- biofilm --- dental implants --- in vitro model --- MSN --- biopolymer --- drug delivery system --- in vitro kinetic studies --- articular cartilage defect --- bioplolymers --- C-reactive protein --- haptoglobin --- in vivo testing --- serum amyloid A --- serum protein fractions --- sheep --- contact lens --- materials --- biomedical implant --- smart dentin grinder --- autogenous particulate dentin graft --- tooth graft --- ground teeth --- human teeth --- bone grafts --- autologous graft --- dolomitic marble --- seashell --- CaCO3 derived-calcium phosphates --- modulated synthesis set-up --- SEM --- image analysis --- pre-osteoblasts --- titanium implants --- dental implants --- antibacterial coating --- gentamicin --- silver --- zinc --- cytotoxicity --- MC3T3-E1 --- Staphylococcus aureus --- plasma chemical oxidation --- bone infection --- local drug delivery --- bone graft --- demineralized bone matrix --- gentamicin --- regeneration --- colon cancer cells --- copper ions --- hydrogel sphere --- sodium alginate --- polyethyleneimine --- surface modification --- biocompatible metals --- coating techniques --- hydroxyapatite --- real-time live-cell imaging technology --- in vitro study --- biocompatibility --- 3D printing --- flow cytometry --- adipogenic mesenchymal stem cells --- porous SHS TiNi --- biocompatibility --- rheological similarity --- corrosion resistance --- bone substitution --- superparamagnetic scaffold --- composite --- laser direct writing --- static magnetic field --- extracellular matrix mineralization --- bone tissue engineering --- three-dimensional co-culture --- osteoblast --- endothelial cell --- microfiber scaffold --- osteogenesis --- angiogenesis --- tissue engineering --- diamond nanoparticles --- fish gelatin --- adipose-derived stem cells --- biocompatibility --- spaced TiO2 nanotubes --- osteoblast --- cell adhesion and morphology --- cell proliferation --- osteogenic differentiation --- protein–polymer matrices --- nanowelding --- single-walled carbon nanotubes --- point defects --- absorption --- laser radiation --- cell membrane --- mesenchymal stem cells --- osteogenic differentiation --- lactoferrin --- polymer composite --- bioceramics --- in vitro testing --- hydroxyapatite --- angiogenesis --- osteogenesis --- signaling pathways --- microRNA --- bioceramics --- bioactive glass --- hydroxyapatite --- root canal sealer --- bioactive glass --- mechanism --- caries --- review

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MDPI - Multidisciplinary Digital Publishing Institute (2)


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english (2)


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2020 (2)