Untitled
... by themselves. However, in conjunction with cholesterol sulfate and free fatty acids, which are ionized at physiological pH, they form ordered structures. These arrays of hydrophobic chains construct lipid bilayers with closely packed interiors which dramatically reduce their permeability to water a ...
... by themselves. However, in conjunction with cholesterol sulfate and free fatty acids, which are ionized at physiological pH, they form ordered structures. These arrays of hydrophobic chains construct lipid bilayers with closely packed interiors which dramatically reduce their permeability to water a ...
The ultrastructure of a doliolid and a copepod
... analyses, pellets of gonozooids of Dolioletta gegenbauri and females of the copepod Eucalanus pileatus were produced in feeding experiments at close to environmental food concentrations. Thin sections of a representative doliolid pellet revealed that these pellets were mainly composed of intact diat ...
... analyses, pellets of gonozooids of Dolioletta gegenbauri and females of the copepod Eucalanus pileatus were produced in feeding experiments at close to environmental food concentrations. Thin sections of a representative doliolid pellet revealed that these pellets were mainly composed of intact diat ...
Biofilm formation and the food industry, a focus on the bacterial outer
... embedded in the outer membrane lipid bilayer. The LPS layer not only affects the bacterium’s susceptibility to disinfectants, antibiotics and other toxic molecules (Russell and Furr 1986), it also plays a role in biofilm formation. For example, O-antigen mutants of Salmonella enterica serovar Typhim ...
... embedded in the outer membrane lipid bilayer. The LPS layer not only affects the bacterium’s susceptibility to disinfectants, antibiotics and other toxic molecules (Russell and Furr 1986), it also plays a role in biofilm formation. For example, O-antigen mutants of Salmonella enterica serovar Typhim ...
View Full Text-PDF
... E. coli is one of the most common pathogen that could be isolated from intestinal and from many extra intestinal infections. They can cause extra intestinal infections in both community and hospitalised patients. These extra intestinal pathogenic Escherichia coli strains exhibit certain virulence fa ...
... E. coli is one of the most common pathogen that could be isolated from intestinal and from many extra intestinal infections. They can cause extra intestinal infections in both community and hospitalised patients. These extra intestinal pathogenic Escherichia coli strains exhibit certain virulence fa ...
Response to Bacteria Excess Production of IL-12 and IL
... Disorders in enteric bacteria recognition by intestinal macrophages (M) are strongly correlated with the pathogenesis of chronic colitis; however the precise mechanisms remain unclear. The aim of the current study was to elucidate the roles of M in intestinal inflammation by using an IL-10-deficie ...
... Disorders in enteric bacteria recognition by intestinal macrophages (M) are strongly correlated with the pathogenesis of chronic colitis; however the precise mechanisms remain unclear. The aim of the current study was to elucidate the roles of M in intestinal inflammation by using an IL-10-deficie ...
Encapsulation of Plasmid DNA in Stabilized Plasmid – Lipid
... plasmid DNA can be entrapped in "stabilized plasmid-lipid particles" (SPLP) using low levels (5- 10 mol%) of cationic lipid, the fusogenic lipid dioleoylphosphatidylethanolamine (DOPE), and a polyethyleneglycol (PEG) coating for stabilization. The PEG moieties are attached to a ceramide anchor conta ...
... plasmid DNA can be entrapped in "stabilized plasmid-lipid particles" (SPLP) using low levels (5- 10 mol%) of cationic lipid, the fusogenic lipid dioleoylphosphatidylethanolamine (DOPE), and a polyethyleneglycol (PEG) coating for stabilization. The PEG moieties are attached to a ceramide anchor conta ...
Mechanisms of Early Microbial Establishment on Growing Root
... Microbial processes within the rhizosphere are important to plant growth but also contribute to soil biodiversity and soil quality (Banfield et al., 1999; Wardle, 2006), yet the formation of microbial communities within the rhizosphere, from the time a root tip penetrates the bulk soil until maturit ...
... Microbial processes within the rhizosphere are important to plant growth but also contribute to soil biodiversity and soil quality (Banfield et al., 1999; Wardle, 2006), yet the formation of microbial communities within the rhizosphere, from the time a root tip penetrates the bulk soil until maturit ...
Chapter 1: Overview - Worcester Polytechnic Institute
... brothers Eduardo and Hernán, although you two were far away from home during the last few years, our phone conversations kept me going. Gracias mariscos! ...
... brothers Eduardo and Hernán, although you two were far away from home during the last few years, our phone conversations kept me going. Gracias mariscos! ...
No Slide Title
... Neutrophil Chemotaxis • C5a also acts directly on neutrophils to increase their adherence to vessel walls, their migration toward sites of antigen deposition, and their ability to ingest particles. ...
... Neutrophil Chemotaxis • C5a also acts directly on neutrophils to increase their adherence to vessel walls, their migration toward sites of antigen deposition, and their ability to ingest particles. ...
PD-1 Pathway, Flyer - Bio
... announce the release of its products and services portfolio for research of the PD-1 pathway. ...
... announce the release of its products and services portfolio for research of the PD-1 pathway. ...
Multiple Roles of the Cytoskeleton in Bacterial Autophagy
... mediates closure of the autophagosomal membrane (Figure 1B). In humans there are six ATG8 orthologues belonging to the light chain 3 (LC3) or c-aminobutyric acid receptor-associated protein (GABARAP) subfamilies, and by interacting with an extensive repertoire of proteins, they have important roles ...
... mediates closure of the autophagosomal membrane (Figure 1B). In humans there are six ATG8 orthologues belonging to the light chain 3 (LC3) or c-aminobutyric acid receptor-associated protein (GABARAP) subfamilies, and by interacting with an extensive repertoire of proteins, they have important roles ...
Role of adaptor protein Toll-Like Interleukin domain containing
... The goal of this investigation was to determine the role of TRIF in TLR4 and TLR3mediated down-regulation of DMETs (Schematic 1). We observed that LPS administration led to significant down-regulation (~40-60%) of gene expression of key DMEs including Cyp3a11, Cyp2a4, Ugt1a1 and Mrp2 in TRIF+/+ as w ...
... The goal of this investigation was to determine the role of TRIF in TLR4 and TLR3mediated down-regulation of DMETs (Schematic 1). We observed that LPS administration led to significant down-regulation (~40-60%) of gene expression of key DMEs including Cyp3a11, Cyp2a4, Ugt1a1 and Mrp2 in TRIF+/+ as w ...
Separation of Bacteria, Protozoa and Carbon Nanotubes by Density
... nanomaterials, for example, repetitive washing and centrifugation to isolate the alga Chlorella vulgaris from single-wall carbon nanotubes (SWCNTs) and graphene oxide [9], and filtration to remove CdSe quantum dots from bacteria such as Pseudomonas aeruginosa [10]. Recently, a differential centrifug ...
... nanomaterials, for example, repetitive washing and centrifugation to isolate the alga Chlorella vulgaris from single-wall carbon nanotubes (SWCNTs) and graphene oxide [9], and filtration to remove CdSe quantum dots from bacteria such as Pseudomonas aeruginosa [10]. Recently, a differential centrifug ...
View Full Text-PDF
... Polyhydroxyalkanoates (PHAs) are polyesters of hydroxyalkanoates synthesized by various bacteria as intracellular carbon and energy storage compounds and accumulated as granules in the cytoplasm of cells. PHA producing bacteria from activated sludge and soil were isolated, characterized and screened ...
... Polyhydroxyalkanoates (PHAs) are polyesters of hydroxyalkanoates synthesized by various bacteria as intracellular carbon and energy storage compounds and accumulated as granules in the cytoplasm of cells. PHA producing bacteria from activated sludge and soil were isolated, characterized and screened ...
Biogenesis and multifaceted roles of outer membrane
... In other secretion systems, soluble proteins are secreted into the medium and so are exposed to the potentially harsh conditions of the extracellular environment. OMVs may be a means by which soluble proteins and nucleic acids can be encapsulated in a bilayer membrane and released in a protective st ...
... In other secretion systems, soluble proteins are secreted into the medium and so are exposed to the potentially harsh conditions of the extracellular environment. OMVs may be a means by which soluble proteins and nucleic acids can be encapsulated in a bilayer membrane and released in a protective st ...
Bacillus anthracis produces membrane-derived vesicles containing biologically active toxins
... revealed values of −65.67 ± 4.71 mV and −7.94 ± 4.71 mV, respectively (P < 0.05). The large difference in ζ potential for vesicles produced by toxin-producing and deficient B. anthracis strains strongly argues against a random assembly of phospholipids or cell membrane fragments into vesicles. B. an ...
... revealed values of −65.67 ± 4.71 mV and −7.94 ± 4.71 mV, respectively (P < 0.05). The large difference in ζ potential for vesicles produced by toxin-producing and deficient B. anthracis strains strongly argues against a random assembly of phospholipids or cell membrane fragments into vesicles. B. an ...
Virulence factors and their mechanisms of action: ABSTRACT
... limitations to this concept, which are rooted in the inability to define virulence and virulence factors in the absence of host factors and the host response. In fact, this concept appears to work best for certain types of bacterial pathogens, being less well suited for viruses and commensal organis ...
... limitations to this concept, which are rooted in the inability to define virulence and virulence factors in the absence of host factors and the host response. In fact, this concept appears to work best for certain types of bacterial pathogens, being less well suited for viruses and commensal organis ...
Study of reactive oxygen species (ROS) and nitric oxide (NO) as
... Division of the Royal Victoria Hospital. I would like to thank the Meakins-Christie Laboratories for accepting me as a research fellow and for the intellectual feed-back provided by all the research ...
... Division of the Royal Victoria Hospital. I would like to thank the Meakins-Christie Laboratories for accepting me as a research fellow and for the intellectual feed-back provided by all the research ...
Full-Text PDF
... not as well as one might hope, e.g., [20]. This, in combination with concerns over growing resistance to antibiotics [21,22], the impact of antibiotics on non-target normal-microbiota bacteria (which can lead to short-term as well as long-term health issues [23,24]), and the problem of release of an ...
... not as well as one might hope, e.g., [20]. This, in combination with concerns over growing resistance to antibiotics [21,22], the impact of antibiotics on non-target normal-microbiota bacteria (which can lead to short-term as well as long-term health issues [23,24]), and the problem of release of an ...
Transcriptional Regulation of the Human Toll
... al. (17). All buffers used contained 1 mM Na3VO4 and a mixture of protease inhibitors (2 g/ml aprotinin, 0.5 g/ml leupeptin, 1 g/ml pepstatin, 20 g/ml bestatin, 5 g/ml E46, 50 g/ml antipain, 100 g/ml chymostatin). Double-stranded oligonucleotides were labeled with [␣-32P]deoxycytidine 5⬘-trip ...
... al. (17). All buffers used contained 1 mM Na3VO4 and a mixture of protease inhibitors (2 g/ml aprotinin, 0.5 g/ml leupeptin, 1 g/ml pepstatin, 20 g/ml bestatin, 5 g/ml E46, 50 g/ml antipain, 100 g/ml chymostatin). Double-stranded oligonucleotides were labeled with [␣-32P]deoxycytidine 5⬘-trip ...
Marine
... of successful contacts between the surface divided by the total number of contacts. The definition of IX is borrowed from models used to describe particle removal in filters (Yao et a!. 1971, O'Melia 1980). We have adopted it for use here because it is analogous to the Michaelis-Menten description o ...
... of successful contacts between the surface divided by the total number of contacts. The definition of IX is borrowed from models used to describe particle removal in filters (Yao et a!. 1971, O'Melia 1980). We have adopted it for use here because it is analogous to the Michaelis-Menten description o ...
Лекция 3. Биологические мембраны. Обмен
... over polysaccharides such as glycogen and starch. The carbon atoms of fatty acids are more reduced than those of sugars, and oxidation of triacylglycerols yields more than twice as much energy, gram for gram, as that of carbohydrates. Furthermore, because triacylglycerols are hydrophobic and therefo ...
... over polysaccharides such as glycogen and starch. The carbon atoms of fatty acids are more reduced than those of sugars, and oxidation of triacylglycerols yields more than twice as much energy, gram for gram, as that of carbohydrates. Furthermore, because triacylglycerols are hydrophobic and therefo ...
Biochemical Aspects of Lipid Storage and
... and glycolipids serve principally as structural components of membranes rather than as energy reserves and will not be discussed further. The structures of lipids of proven or possible significance in energy metabolism are summarized in Table 1. The long-chain fatty acids of animal lipids have predo ...
... and glycolipids serve principally as structural components of membranes rather than as energy reserves and will not be discussed further. The structures of lipids of proven or possible significance in energy metabolism are summarized in Table 1. The long-chain fatty acids of animal lipids have predo ...
Supplementary Data - Institute of Cancer Research
... To study the function of the new rLC isoforms in more detail, we first made use of available mutants, ΔLCE12 flies lacking the entire PGRP-LC locus, and ΔLCird7(1) flies with an insertion in exon 4 which consequently express only the rLC isoforms (Fig. 1c and Fig. 2c) 29, 30. Both mutants are unabl ...
... To study the function of the new rLC isoforms in more detail, we first made use of available mutants, ΔLCE12 flies lacking the entire PGRP-LC locus, and ΔLCird7(1) flies with an insertion in exon 4 which consequently express only the rLC isoforms (Fig. 1c and Fig. 2c) 29, 30. Both mutants are unabl ...
docx Helicobacter Infection
... supplements may act as nutritional substrates to the microorganism, detoxification may be their other function. It Is due to this reason that the supplementation with cyclodextrins promotes proper growth of H. pylori. Under microaerobic conditions, fresh isolates of the bacteria grow well. Some stra ...
... supplements may act as nutritional substrates to the microorganism, detoxification may be their other function. It Is due to this reason that the supplementation with cyclodextrins promotes proper growth of H. pylori. Under microaerobic conditions, fresh isolates of the bacteria grow well. Some stra ...
Lipopolysaccharide
Lipopolysaccharides (LPS), also known as lipoglycans and endotoxin, are large molecules consisting of a lipid and a polysaccharide composed of O-antigen, outer core and inner core joined by a covalent bond; they are found in the outer membrane of Gram-negative bacteria, and elicit strong immune responses in animals.The term lipooligosaccharide (""LOS"") is used to refer to a low molecular weight form of bacterial lipopolysaccharides.