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Full-Text Articles in Biology
Antimicrobial Resistance Of Channel Catfish Intestinal Microflora In The Arkansas And Ninnescah Rivers In Kansas, Jordan R. Hofmeier
Antimicrobial Resistance Of Channel Catfish Intestinal Microflora In The Arkansas And Ninnescah Rivers In Kansas, Jordan R. Hofmeier
Master's Theses
Antimicrobial compounds have been used by humans to counteract bacterial infections since 1910. Overuse of these compounds in clinical and agricultural applications has led to rapid evolution and global spread of antimicrobial resistance and rivers are the main receiving body for antimicrobials and resistant bacteria from urban effluents and agricultural runoff. When antimicrobial-resistant bacteria enter the aquatic environment, water acts as a physical pathway for their distribution. Subsequently, resistance genes become established in natural systems and pose threats to human health and ecological processes. Due to these potential threats, antimicrobial resistance in the aquatic environment should be closely monitored. To …
Dispersal Of Antibiotic-Resistant Bacteria Near Central Great Plains Feedlots, Jennifer R. Pfannenstiel-Klaus
Dispersal Of Antibiotic-Resistant Bacteria Near Central Great Plains Feedlots, Jennifer R. Pfannenstiel-Klaus
Master's Theses
Antibiotic resistance is a growing concern in medical and veterinary settings. Resistance can be worsened by misuse and overuse of antibiotics. Such situations can give rise to highly resistant organisms. Ciprofloxacin, a synthetic, broad-spectrum antibiotic used to treat gram-positive and gram-negative infections in humans, has similar chemical structure to enrofloxacin, which is used to treat animals. Cross-resistance might arise because of that similarity. This research describes the dispersal and prevalence of bacteria that exhibit ciprofloxacin resistance in relation to feedlots in the central Great Plains region. Six times in 2013, six feedlots were sampled for airborne bacterial communities at, upwind …
Genetic Analysis Of Vancomycin-Resistant Gram-Positive Cocci Isolated From Wild Songbirds, Shingo Ishihara
Genetic Analysis Of Vancomycin-Resistant Gram-Positive Cocci Isolated From Wild Songbirds, Shingo Ishihara
Master's Theses
The antibiotic vancomycin was developed by Eli Lilly in the 1950s in response to the growing number of Staphylococcus aureus infections that were resistant to penicillin. Vancomycin was not widely used at the time because of its high toxicity. However, use of vancomycin in the United States has increased dramatically since the 1980s because of the emergence of methicillin resistant Staphylococcus aureus (MRSA) and Enterococcus species. There are three known mechanisms for vancomycin resistance: 1) target site modification by van genes, 2) biofilm formation, and 3) bacterial cell wall thickening. Of these mechanisms, target site modification is the most common. …