نتایج جستجو برای: aerobe
تعداد نتایج: 192 فیلتر نتایج به سال:
A study was performed to evaluate the effect of initial and/or repeated scaling with or without controlled oral hygiene on the level of periodontal attachment and pocket depth in beagle dogs. The clinical results of this three-year longitudinal study have been reported previously (Morrison et al. 1979). The purpose of the present report is to present the microbiological results of subgingival p...
Budding yeast is a preeminent model organism in studies of cellular aging pathways that are conserved in eukaryotes, including humans. There are two primary ways to query the lifespan of this organism.1 if one asks how many times a cell can divide, the answer will be its replicative lifespan (RLS). if, on the other hand, one asks how long a cell can stay alive without dividing, the answer will ...
UNLABELLED 1. Barrier effect. Relevant models should include an anaerobic dominant flora that antagonizes minor bacterial populations such as drug resistant E. coli. 2. Anaerobes vs. aerobes. Aerobe counts are more precise and much less time consuming than anaerobe counts. Minor populations of drug resistant aerobes are sensitive markers of the ecosystem balance, and are directly relevant to th...
The microbiota of the gut has many crucial functions in human health. Dysbiosis of the microbiota has been correlated to a large and still increasing number of diseases. Recent studies have mostly focused on analyzing the associations between disease and an aberrant microbiota composition. Functional studies using (in vitro) gut models are required to investigate the precise interactions that o...
6 João C. Setubal, Patricia dos Santos, Barry S. Goldman, Helga Ertesvåg, 7 Guadelupe Espin, Luis M. Rubio, Svein Valla, Nalvo F. Almeida, Divya 8 Balasubramanian, Lindsey Cromes, Leonardo Curatti, Zijin Du, Eric Godsy, Brad 9 Goodner, Kaitlyn Hellner-Burris, José A. Hernandez, Katherine Houmiel, Juan 10 Imperial, Christina Kennedy, Timothy J. Larson, Phil Latreille, Lauren S. Ligon, 11 Jing Lu...
The isolation of a new thermophilic bacterium, Thermus aquaticus gen. n. and sp. n., is described. Successful enrichment requires incubation at 70 to 75 C, and the use of nutrient media relatively dilute with respect to the organic components. Strains of T. aquaticus have been isolated from a variety of thermal springs in Yellowstone National Park and from a thermal spring in California. The or...
BACKGROUND Bacterial contamination of anesthesia breathing machines and their potential hazard for pulmonary infection and cross-infection among anesthetized patients has been an infection control issue since the 1950s. Disposable equipment and bacterial filters have been introduced to minimize this risk. However, the machines' internal breathing-circuit-system has been considered to be free of...
Staphylococcus aureus is a gram-positive facultative aerobe that can grow in the absence of oxygen by fermentation or by using an alternative electron acceptor. To investigate the mechanism by which S. aureus is able to adapt to changes in oxygen concentration, we analyzed the transcriptional regulation of genes that encode the aerobic class Ib and anaerobic class III ribonucleotide reductase (...
Budding yeast is a preeminent model organism in studies of cellular aging pathways that are conserved in eukaryotes, including humans. There are two primary ways to query the lifespan of this organism.1 if one asks how many times a cell can divide, the answer will be its replicative lifespan (RLS). if, on the other hand, one asks how long a cell can stay alive without dividing, the answer will ...
BACKGROUND Much remains to be known about the mechanisms by which O(2)-dependent host defenses mediate broad antimicrobial activity. METHODOLOGY/PRINCIPAL FINDINGS We show herein that reactive nitrogen species (RNS) generated by inducible nitric oxide (NO) synthase (iNOS) account for the anti-Burkholderia mallei activity of IFNgamma-primed macrophages. Inducible NOS-mediated intracellular kil...
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