Antimicrobial natural products
... penicillin in the laboratory by exposing them to concentrations not sufficient to kill them and the same thing has occasionally happened in the body’ [26]. A few decades after his speech, the issue of antimicrobial resistance became widespread and a major issue in medicine. The first case of antimic ...
... penicillin in the laboratory by exposing them to concentrations not sufficient to kill them and the same thing has occasionally happened in the body’ [26]. A few decades after his speech, the issue of antimicrobial resistance became widespread and a major issue in medicine. The first case of antimic ...
concepts-of-biology
... organisms would have flourished where they were more protected, such as in ocean depths or beneath the surface of Earth. At this time, too, strong volcanic activity was common on Earth, so it is likely that these first organisms—the first prokaryotes—were adapted to very high temperatures. These are ...
... organisms would have flourished where they were more protected, such as in ocean depths or beneath the surface of Earth. At this time, too, strong volcanic activity was common on Earth, so it is likely that these first organisms—the first prokaryotes—were adapted to very high temperatures. These are ...
STUDIES ON THE IDENTITY AND ... BACTERIA ON STORED BARLEY
... the rate of increase was inversely proportional to the humidity, the maximum population attained was the same in each case, and once attained it was immediately followed by a drop in numberso These results were interpreted as indicating that in a physiological sense, xerophytic bacteria do occur on ...
... the rate of increase was inversely proportional to the humidity, the maximum population attained was the same in each case, and once attained it was immediately followed by a drop in numberso These results were interpreted as indicating that in a physiological sense, xerophytic bacteria do occur on ...
51 MORPHOLOGY AND GENERAL PROPERTIES OF FUNGI
... (c) Those fungi infecting the outer layers of the skin are rarely severe and are usually transmitted by contact with infected animals or humans. The agents of subcutaneous and systemic mycoses, however, are normally saprophytic fungi growing in the soil. Humans generally acquire these mycoses only w ...
... (c) Those fungi infecting the outer layers of the skin are rarely severe and are usually transmitted by contact with infected animals or humans. The agents of subcutaneous and systemic mycoses, however, are normally saprophytic fungi growing in the soil. Humans generally acquire these mycoses only w ...
Foodborne Illness
... Once a person is infected, the symptoms are fever, diarrhea, and abdominal cramps. Other common foodborne illnesses caused by bacteria include Salmonella and E. coli O157:H7. The bacterium that causes Salmonella is generally found in the intestines of reptiles, poultry and other mammals. The symptom ...
... Once a person is infected, the symptoms are fever, diarrhea, and abdominal cramps. Other common foodborne illnesses caused by bacteria include Salmonella and E. coli O157:H7. The bacterium that causes Salmonella is generally found in the intestines of reptiles, poultry and other mammals. The symptom ...
PVP-Iodine Brochure
... 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 iodides or alcohol to dissolve. Additionally, P ...
... 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 iodides or alcohol to dissolve. Additionally, P ...
Phenol coefficient - Fakultas Farmasi Unand
... A series of a dilutions of phenol and the disinfectant being tested are prepared. A standard amount of Salmonella tyhpii and Staphylococcus aureus are added to each dilution; the dilutions are then placed in a 20 to ...
... A series of a dilutions of phenol and the disinfectant being tested are prepared. A standard amount of Salmonella tyhpii and Staphylococcus aureus are added to each dilution; the dilutions are then placed in a 20 to ...
The Mechanics of Antimicrobial Resistance
... From a microbiological point of view, resistance is defined as a state in which an isolate has a resistance mechanism rendering it less susceptible than other members of the same species lacking any resistance mechanism. This definition is valid irrespective of the level of resistance (i.e. low or h ...
... From a microbiological point of view, resistance is defined as a state in which an isolate has a resistance mechanism rendering it less susceptible than other members of the same species lacking any resistance mechanism. This definition is valid irrespective of the level of resistance (i.e. low or h ...
Psudomonas putida and fluorecences Prepared by: Ghada Rayyan D
... Strains of p.fluorescens have been frequently identified as contaminant on the skin of humans and as agent causing pseudobacteremia and procedure- related infection in hospitalized patients and infections resulting from transfusion with contaminated blood components. ...
... Strains of p.fluorescens have been frequently identified as contaminant on the skin of humans and as agent causing pseudobacteremia and procedure- related infection in hospitalized patients and infections resulting from transfusion with contaminated blood components. ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... been implicated as a key molecule responsible for inflammation, obesity and diabetes mellitus linked to high fat diet [32]. It has been shown in a mice model that mice fed on high fat diet had elevation in serum LPS levels [33]. Further, these perturbations including endotoxemia and metabolic dysfun ...
... been implicated as a key molecule responsible for inflammation, obesity and diabetes mellitus linked to high fat diet [32]. It has been shown in a mice model that mice fed on high fat diet had elevation in serum LPS levels [33]. Further, these perturbations including endotoxemia and metabolic dysfun ...
ANOPHELES GUT MICROBIOTA PROVIDE POSSIBILITIES
... Some transgenic mosquitoes have been shown to prevent pathogen development by expression of molecules that impair the survival of the pathogens (Coutinho-Abreu et al. 2010). To begin with, proof-of-principle laboratory experiments showing anti-Plasmodium resistance in transgenic Anopheles were perfo ...
... Some transgenic mosquitoes have been shown to prevent pathogen development by expression of molecules that impair the survival of the pathogens (Coutinho-Abreu et al. 2010). To begin with, proof-of-principle laboratory experiments showing anti-Plasmodium resistance in transgenic Anopheles were perfo ...
Features of biofilms
... Quorum-sensing-interfering compounds either produced naturally by certain eukaryotic hosts, synthesized by chemical methods, or produced by creating transgenic plants all have either a positive or a negative effect on the expression of bacterial phenotypes regulated by quorum sensing. It is also pos ...
... Quorum-sensing-interfering compounds either produced naturally by certain eukaryotic hosts, synthesized by chemical methods, or produced by creating transgenic plants all have either a positive or a negative effect on the expression of bacterial phenotypes regulated by quorum sensing. It is also pos ...
Entamoeba histolytica
... Life cycle of E. histolytica (Noninvasive form) Intestinal infection occur through the ingestion of a mature quadrinucleate infective cyst which contaminated food, drinks and also by hand to mouth contact. Then pass through the stomach , as the cyst wall is resistant to gastric juice. - In the intes ...
... Life cycle of E. histolytica (Noninvasive form) Intestinal infection occur through the ingestion of a mature quadrinucleate infective cyst which contaminated food, drinks and also by hand to mouth contact. Then pass through the stomach , as the cyst wall is resistant to gastric juice. - In the intes ...
Bacteria and Viruses
... A typical bacterium, such as the one shown in Figure 1, consists of cytoplasm and DNA surrounded by a cell membrane and a cell wall. The cytoplasm also contains ribosomes. Most bacteria have DNA that is one coiled, circular chromosome. Many bacteria also have one or more small circular pieces of DNA ...
... A typical bacterium, such as the one shown in Figure 1, consists of cytoplasm and DNA surrounded by a cell membrane and a cell wall. The cytoplasm also contains ribosomes. Most bacteria have DNA that is one coiled, circular chromosome. Many bacteria also have one or more small circular pieces of DNA ...
Document
... Disorders, Head-Ache, Joint-Pain and Sinus Trouble/ Cold were selected for the trials • The patients were instructed to carry out the washing of the curative garments with natural mild detergents • Detailed feed back from the patients and the Doctor were collected every week regarding the performanc ...
... Disorders, Head-Ache, Joint-Pain and Sinus Trouble/ Cold were selected for the trials • The patients were instructed to carry out the washing of the curative garments with natural mild detergents • Detailed feed back from the patients and the Doctor were collected every week regarding the performanc ...
Bacterial Profile Associated with Appendicitis
... all isolates followed by Bacteroides spp. 21 (18.9%), Klebsiella pneumoniae 18 (16.2 % ), Pseudomonas aeruginosa 11 (9.9%), Citrobacter freundii 7 (6.3%), Salmonella typhi 5 (4.5%), Proteus mirabilis 5 (4.5%), Enterobacter aerogenesa 4 (3.6%), Peptodtreptococcus 2 (1.8%), Staphylococcus aureus 1 (0. ...
... all isolates followed by Bacteroides spp. 21 (18.9%), Klebsiella pneumoniae 18 (16.2 % ), Pseudomonas aeruginosa 11 (9.9%), Citrobacter freundii 7 (6.3%), Salmonella typhi 5 (4.5%), Proteus mirabilis 5 (4.5%), Enterobacter aerogenesa 4 (3.6%), Peptodtreptococcus 2 (1.8%), Staphylococcus aureus 1 (0. ...
LACTIC ACID BACTERIA AS BIOPROTECTIVE AGENTS AGAINST FOODBORNE PATHOGENS AND SPOILAGE
... the most common inhibition mechanism. Bacteriocins were produced by Leuconstoc mesenteroides strains CM160 and CM135, and a preliminary classification suggested that they were Class IIa bacteriocins. Lactic acid bacteria strains were tested at ex vivo level using two different assays. First, efficac ...
... the most common inhibition mechanism. Bacteriocins were produced by Leuconstoc mesenteroides strains CM160 and CM135, and a preliminary classification suggested that they were Class IIa bacteriocins. Lactic acid bacteria strains were tested at ex vivo level using two different assays. First, efficac ...
Rapid Chromatic Detection of Bacteria by Use of a New Biomimetic
... detection methods is the detailed understanding of the biochemical and structural properties of the bacterial species sought, limiting applications in the case of unknown pathogens or variants (9, 31). Various membrane-active compounds are released by bacteria to their environments (2, 30), a proces ...
... detection methods is the detailed understanding of the biochemical and structural properties of the bacterial species sought, limiting applications in the case of unknown pathogens or variants (9, 31). Various membrane-active compounds are released by bacteria to their environments (2, 30), a proces ...
Bacterial rheotaxis
... fastidiosa (24), all of which require the presence of a solid surface. In contrast, little is known about the effect of shear on bacteria freely swimming in the bulk fluid. Using Bacillus subtilis as a model organism, we here report that bacteria exhibit rheotaxis that is not conditional to the prese ...
... fastidiosa (24), all of which require the presence of a solid surface. In contrast, little is known about the effect of shear on bacteria freely swimming in the bulk fluid. Using Bacillus subtilis as a model organism, we here report that bacteria exhibit rheotaxis that is not conditional to the prese ...
Microspectrometric insights on the uptake of antibiotics
... of bacteria leads also to a convoluted signal due to emission of bacterial fluorophores such as tryptophan, tyrosine or NAD, together usually referred to as autofluorescence, which can interfere with the signal from the antibiotic. This label-free approach is sensitive and can be performed not only ...
... of bacteria leads also to a convoluted signal due to emission of bacterial fluorophores such as tryptophan, tyrosine or NAD, together usually referred to as autofluorescence, which can interfere with the signal from the antibiotic. This label-free approach is sensitive and can be performed not only ...
On the antibacterial action of cultures of a Penicillium, with special
... variants a number of culture-plates were set aside on the laboratory bench and examined from time to time. In the examinations these plates were necessarily exposed to the air and they became contaminated with various micro-organisms. It was noticed that around a large colony of a contaminating ...
... variants a number of culture-plates were set aside on the laboratory bench and examined from time to time. In the examinations these plates were necessarily exposed to the air and they became contaminated with various micro-organisms. It was noticed that around a large colony of a contaminating ...
2nd Term 10th Lecture F
... Cephalosporins are similar to penicillins chemically, in mechanism of action and in toxicity Cephalosporins are affected by the same resistance mechanisms as penicillins. However, they tend to be more resistant than the penicillins to bacterial b-lactamases, and therefore usually have a broader ...
... Cephalosporins are similar to penicillins chemically, in mechanism of action and in toxicity Cephalosporins are affected by the same resistance mechanisms as penicillins. However, they tend to be more resistant than the penicillins to bacterial b-lactamases, and therefore usually have a broader ...
The Functional Resistance of Bacterial Biofi lms Chapter 11 1 Pathogenic Bacterial Communities
... reflects an expressed phenotype rather than individual resistant clones, and that this phenotype can be overcome by nutritional stimulation and dilution. Interestingly, bacteria in high density (109–1011 CFU/mL as compared to 105 CFU/mL) remained tolerant to antibiotics despite transfer to fresh med ...
... reflects an expressed phenotype rather than individual resistant clones, and that this phenotype can be overcome by nutritional stimulation and dilution. Interestingly, bacteria in high density (109–1011 CFU/mL as compared to 105 CFU/mL) remained tolerant to antibiotics despite transfer to fresh med ...
Changes in Microbial (Bacteria and Archaea) Plankton
... under investigated. A reason for this is the conceptual challenges associated to the study. The main approach followed so far is “transplant experiments” [11,12] in which, water from a particular source (e.g., saline/freshwater, epilimnion/hypolimnion) is incubated in an adjacent area with different ...
... under investigated. A reason for this is the conceptual challenges associated to the study. The main approach followed so far is “transplant experiments” [11,12] in which, water from a particular source (e.g., saline/freshwater, epilimnion/hypolimnion) is incubated in an adjacent area with different ...
Skin flora
The skin flora, more properly referred to as the skin microbiota, are the microorganisms which reside on the skin. Most research has been upon those that reside upon the 2 square metres of human skin, cf. the human microbiome. The skin microbiome refer to their genomes.Many of them are bacteria of which there are around 1000 species upon human skin from 19 phyla. The total number of bacteria on an average human has been estimated at 1012 (1 trillion). Most are found in the superficial layers of the epidermis and the upper parts of hair follicles.Skin flora is usually non-pathogenic, and either commensal (are not harmful to their host) or mutualistic (offer a benefit). The benefits bacteria can offer include preventing transient pathogenic organisms from colonizing the skin surface, either by competing for nutrients, secreting chemicals against them, or stimulating the skin's immune system. However, resident microbes can cause skin diseases and enter the blood system creating life-threatening diseases particularly in immunosuppressed people.A major nonhuman skin flora is Batrachochytrium dendrobatidis, a chytrid and non-hyphal zoosporic fungus that causes chytridiomycosis, an infectious disease thought to be responsible for the decline in amphibian populations.