Whole-Cell Bacterial Biosensors and the Detection of - CLU-IN
... 1993). Current risk assessments for arsenic are calculated based upon the total arsenic present. However, toxicity, solubility, and mobility can all vary depending upon which species of arsenic is present, thus affecting the bioavailability of the arsenic contamination. The bioavailable fraction is ...
... 1993). Current risk assessments for arsenic are calculated based upon the total arsenic present. However, toxicity, solubility, and mobility can all vary depending upon which species of arsenic is present, thus affecting the bioavailability of the arsenic contamination. The bioavailable fraction is ...
MICROBIAL CR(VI) REDUCTION IN INDIGENOUS CULTURES OF BACTERIA: CHARACTERIZATION AND MODELLING
... performed best as a consortium with the different species operating cooperatively. The bacteria were acclimated to Cr(VI) toxicity through the long period of contact during the activated sludge treatment process at the source. A Monod like model was used to evaluate the rate of Cr(VI) reduction over ...
... performed best as a consortium with the different species operating cooperatively. The bacteria were acclimated to Cr(VI) toxicity through the long period of contact during the activated sludge treatment process at the source. A Monod like model was used to evaluate the rate of Cr(VI) reduction over ...
Life at High Salt Concentrations
... Microorganisms A survey of the halophilic microorganisms for metabolic diversity shows that many, but not all types of dissimilatory metabolism known within the prokaryotic world, can function in hypersaline environments as well. Figure 7 presents an overview of the functional diversity of halophili ...
... Microorganisms A survey of the halophilic microorganisms for metabolic diversity shows that many, but not all types of dissimilatory metabolism known within the prokaryotic world, can function in hypersaline environments as well. Figure 7 presents an overview of the functional diversity of halophili ...
Purpose
... kingdom as roses and pine trees. Oh, and of course the simple nucleated cells (such as Euglena and Amoeba) were categorized based on their degree of resemblance to plants or animals. Then came a big revolution based on information revealed by the electron microscope. It was found that some cells (su ...
... kingdom as roses and pine trees. Oh, and of course the simple nucleated cells (such as Euglena and Amoeba) were categorized based on their degree of resemblance to plants or animals. Then came a big revolution based on information revealed by the electron microscope. It was found that some cells (su ...
Alternative therapies in Staphylococcus aureus diseases
... by MRSA with reduced sensitivity to this antibiotic, the development of resistance towards glycopeptides, which are an important group of antibacterial drugs against multidrug resistant (MDR) HA-MRSA has become a threat (Hiramatsu et al., 1997). This is the reason for the continuing research regardi ...
... by MRSA with reduced sensitivity to this antibiotic, the development of resistance towards glycopeptides, which are an important group of antibacterial drugs against multidrug resistant (MDR) HA-MRSA has become a threat (Hiramatsu et al., 1997). This is the reason for the continuing research regardi ...
Disinfection and Sterilization: What`s New
... PRECLEAN- point-of-use (bedside) remove debris by wiping exterior and aspiration of detergent through air/water and biopsy channels; leak testing CLEAN- mechanically cleaned with water and enzymatic cleaner HLD/STERILIZE- immerse scope and perfuse HLD/sterilant through all channels for exposure time ...
... PRECLEAN- point-of-use (bedside) remove debris by wiping exterior and aspiration of detergent through air/water and biopsy channels; leak testing CLEAN- mechanically cleaned with water and enzymatic cleaner HLD/STERILIZE- immerse scope and perfuse HLD/sterilant through all channels for exposure time ...
Lorena Patricia Montero Toro Ph.D. Gabriel Trueba Director de
... L.pneumophila in amoeba (A.polyphaga, a strain associated with an outbreak in UK), which affected the surface properties of the bacteria by altering proteins, lipopolysaccharides, and fatty acid content; these changes limit the action of antibacterial molecules to cross the cell envelope. Consequent ...
... L.pneumophila in amoeba (A.polyphaga, a strain associated with an outbreak in UK), which affected the surface properties of the bacteria by altering proteins, lipopolysaccharides, and fatty acid content; these changes limit the action of antibacterial molecules to cross the cell envelope. Consequent ...
View PDF - OMICS International
... Kumazasa bamboo leaf. The cytoplasmic extract displays potent bactericidal action against Gram-positive bacteria such as Staphylococcus aureus, Enterococci and Streptococcus pneumoniae and also multi-antibiotic resistant MRSA (methicillin-resistant Staphylococcus aureus) and VRE (vancomycin-resistan ...
... Kumazasa bamboo leaf. The cytoplasmic extract displays potent bactericidal action against Gram-positive bacteria such as Staphylococcus aureus, Enterococci and Streptococcus pneumoniae and also multi-antibiotic resistant MRSA (methicillin-resistant Staphylococcus aureus) and VRE (vancomycin-resistan ...
Helicobacter pylori
... H. pylori infects more than half of the world's population, and can be found almost everywhere Habitat The natural habitat of H. pylori is the gastric mucosa of the human. It is microaerophilic, and grows well under conditions of reduced oxygen tension found in the stomach Nutrition H. pylori is a h ...
... H. pylori infects more than half of the world's population, and can be found almost everywhere Habitat The natural habitat of H. pylori is the gastric mucosa of the human. It is microaerophilic, and grows well under conditions of reduced oxygen tension found in the stomach Nutrition H. pylori is a h ...
International Agency for Research on Cancer (IARC)
... high among those excreting aflatoxin B1-guanine adducts; however, there was no association between dietary and urinary aflatoxin levels among subjects in whom both were detected. Of three hospital-based case-control studies in which an attempt was made to evaluate exposure to aflatoxin B1, one (in t ...
... high among those excreting aflatoxin B1-guanine adducts; however, there was no association between dietary and urinary aflatoxin levels among subjects in whom both were detected. Of three hospital-based case-control studies in which an attempt was made to evaluate exposure to aflatoxin B1, one (in t ...
Effect of energy metabolism and membrane structure on single l
... The main purpose of this thesis has been to study the motility of the outer membrane protein, the λ-receptor, in Escherichia coli and its dependence on energy metabolism and membrane structure. E. coli is a gram negative bacterium having three membranes; an inner membrane, the peptidoglycan layer an ...
... The main purpose of this thesis has been to study the motility of the outer membrane protein, the λ-receptor, in Escherichia coli and its dependence on energy metabolism and membrane structure. E. coli is a gram negative bacterium having three membranes; an inner membrane, the peptidoglycan layer an ...
Attachment mechanisms and properties of bacterial - E
... on the machine surfaces that are mostly made of stainless steel (Fig 1). The paper-machine biofilms are usually composed of bacteria, EPS produced by the bacteria, wood fibers, and miscellaneous paper making additives from the process. When the slimes grow thick they can reduce water flow in pipelin ...
... on the machine surfaces that are mostly made of stainless steel (Fig 1). The paper-machine biofilms are usually composed of bacteria, EPS produced by the bacteria, wood fibers, and miscellaneous paper making additives from the process. When the slimes grow thick they can reduce water flow in pipelin ...
Lec.9 Thursday 21 Apr. 16 Dr.baybeen Al
... the vitamins and fluid..Absorption due to presence of villi and microvilli in intestinal mucosal cells that serve to increase the surface area of absorption. ...
... the vitamins and fluid..Absorption due to presence of villi and microvilli in intestinal mucosal cells that serve to increase the surface area of absorption. ...
Photosynthetic electron transport and anaerobic
... of nif genes. RegA has extensive sequence homology in its amino terminal sequence with two component response regulators (Stock et al. 1989). It would be expected that in common with other systems, a sensor kinase would phosphorylate RegA in response to an environmental signal such as a change in ox ...
... of nif genes. RegA has extensive sequence homology in its amino terminal sequence with two component response regulators (Stock et al. 1989). It would be expected that in common with other systems, a sensor kinase would phosphorylate RegA in response to an environmental signal such as a change in ox ...
Role of bacteria in amoebic gill disease - UTas ePrints
... following challenge with Neoparamoeba spp. compared to the group that was exposed to Neoparamoeba spp. alone (16% in chapter 5 and 8% in chapter 6). Furthermore, this study also confirmed that Neoparamoeba spp. are able to infect salmonid gills and cause AGD with very low levels of culturable bacter ...
... following challenge with Neoparamoeba spp. compared to the group that was exposed to Neoparamoeba spp. alone (16% in chapter 5 and 8% in chapter 6). Furthermore, this study also confirmed that Neoparamoeba spp. are able to infect salmonid gills and cause AGD with very low levels of culturable bacter ...
The Human Cell as an Environment for Horizontal Gene Transfer
... every biological kingdom. As such, conjugative mechanisms of DNA transfer are necessary for a host of spectacular phenotypes such as symbiosis, virulence and antibiotic resistance. The conjugative mechanism is also related to the means of translocating and transferring proteins from bacteria to othe ...
... every biological kingdom. As such, conjugative mechanisms of DNA transfer are necessary for a host of spectacular phenotypes such as symbiosis, virulence and antibiotic resistance. The conjugative mechanism is also related to the means of translocating and transferring proteins from bacteria to othe ...
PVP-Iodine Brochure
... PVP-Iodine (Povidone-iodine), was introduced to the pharmaceutical market as an antiseptic agent in the 1950’s and is as effective as iodine itself against a broad spectrum of disease-causing microorganisms.1,2 It differs from iodine, in that it is less irritating to the skin and does not require io ...
... PVP-Iodine (Povidone-iodine), was introduced to the pharmaceutical market as an antiseptic agent in the 1950’s and is as effective as iodine itself against a broad spectrum of disease-causing microorganisms.1,2 It differs from iodine, in that it is less irritating to the skin and does not require io ...
DOCTORAL THESIS
... concentrations in the plasma and other body fluids, good tissue penetration and a long halflife (10–12 h), allowing for once-a-day administration. However, the incidence of side effects reported with fleroxacin, including severe phototoxic reactions, limited the clinical utility of this drug [23]. B ...
... concentrations in the plasma and other body fluids, good tissue penetration and a long halflife (10–12 h), allowing for once-a-day administration. However, the incidence of side effects reported with fleroxacin, including severe phototoxic reactions, limited the clinical utility of this drug [23]. B ...
View online - Ghent University Library
... This topic would never have come to fruition without the help of other people. First and foremost, let me express my gratitude to Prof. Boon, Prof. Waegeman, Michiel and Ramiro for figuring out a topic between both research groups. Several discussions were necessary to delineate the subject and set ...
... This topic would never have come to fruition without the help of other people. First and foremost, let me express my gratitude to Prof. Boon, Prof. Waegeman, Michiel and Ramiro for figuring out a topic between both research groups. Several discussions were necessary to delineate the subject and set ...
Infections, Infertility, and Assisted Reproduction
... Unfortunately, and usually without advance warning, microbes occasionally enter the clinical laboratory through infected semen or vaginal tissue. When this occurs, a patient’s treatment outcome may be seriously compromised because microbes can quickly deplete nutrients in culture media and alter the ...
... Unfortunately, and usually without advance warning, microbes occasionally enter the clinical laboratory through infected semen or vaginal tissue. When this occurs, a patient’s treatment outcome may be seriously compromised because microbes can quickly deplete nutrients in culture media and alter the ...
Infections, Infertility, and Assisted Reproduction
... Unfortunately, and usually without advance warning, microbes occasionally enter the clinical laboratory through infected semen or vaginal tissue. When this occurs, a patient’s treatment outcome may be seriously compromised because microbes can quickly deplete nutrients in culture media and alter the ...
... Unfortunately, and usually without advance warning, microbes occasionally enter the clinical laboratory through infected semen or vaginal tissue. When this occurs, a patient’s treatment outcome may be seriously compromised because microbes can quickly deplete nutrients in culture media and alter the ...
Bile Acids - Biocrates
... dietary of fat, bile acids exert regulatory effects on glucose and lipid metabolism via activation of FXR and TGR5 mediated signaling. The nuclear receptor FXR and membrane bound receptor TGR5 are the best studied bile acid receptors and targets for drug development concerning diabetes and cardiovas ...
... dietary of fat, bile acids exert regulatory effects on glucose and lipid metabolism via activation of FXR and TGR5 mediated signaling. The nuclear receptor FXR and membrane bound receptor TGR5 are the best studied bile acid receptors and targets for drug development concerning diabetes and cardiovas ...
Chapter 7 Body Systems
... Salivary glands—three pairs of compound tubuloalveolar glands (Figure 25-6) secrete approximately 1 liter of saliva each day; buccal glands contribute less than 5% of total salivary volume but provide for hygiene and comfort of oral tissues ...
... Salivary glands—three pairs of compound tubuloalveolar glands (Figure 25-6) secrete approximately 1 liter of saliva each day; buccal glands contribute less than 5% of total salivary volume but provide for hygiene and comfort of oral tissues ...
Special, clinical and ecological microbiology
... C. hide bacterial antigens from the host immune tissues D. *survive as intracellular parasites E. alter or change their surface antigens within the course of an infection 39. Leukocidins are A. enzymes contained in the lysosomes of phagocytes to kill ingested bacteria B. proteins produced by bacteri ...
... C. hide bacterial antigens from the host immune tissues D. *survive as intracellular parasites E. alter or change their surface antigens within the course of an infection 39. Leukocidins are A. enzymes contained in the lysosomes of phagocytes to kill ingested bacteria B. proteins produced by bacteri ...
Human microbiota
The human microbiota is the aggregate of microorganisms, a microbiome that resides on the surface and in deep layers of skin (including in mammary glands), in the saliva and oral mucosa, in the conjunctiva, and in the gastrointestinal tracts. They include bacteria, fungi, and archaea. Micro-animals which live on the human body are excluded. The human microbiome refer to their genomes.One study indicated they outnumber human cells 10 to 1. Some of these organisms perform tasks that are useful for the human host. However, the majority have been too poorly researched for us to understand the role they play, however communities of microflora have been shown to change their behavior in diseased individuals. Those that are expected to be present, and that under normal circumstances do not cause disease, but instead participate in maintaining health, are deemed members of the normal flora. Though widely known as microflora, this is a misnomer in technical terms, since the word root flora pertains to plants, and biota refers to the total collection of organisms in a particular ecosystem. Recently, the more appropriate term microbiota is applied, though its use has not eclipsed the entrenched use and recognition of flora with regard to bacteria and other microorganisms. Both terms are being used in different literature.Studies in 2009 questioned whether the decline in biota (including microfauna) as a result of human intervention might impede human health.Most of the microbes associated with humans appear to be not harmful at all, but rather assist in maintaining processes necessary for a healthy body. A surprising finding was that at specific sites on the body, a different set of microbes may perform the same function for different people. For example, on the tongues of two people, two entirely different sets of organisms will break down sugars in the same way. This suggests that medical science may be forced to abandon the ""one only"" microbe model of infectious disease, and rather pay attention to functions of groups of microbes that have somehow gone awry.