Antibiotic resistance

advantage. The present study was conducted in order to transform E.coli into an antibiotic-resistant bacteria by introducing a plasmid, lux and pUC18, containing a gene for the resistance to Ampicillin. The procedure had four basic steps: treating bacterial cells with CaCl2 solution in…

In the 1940s, antibiotics were widely introduced as a cure for common types of diseases. However, some microbes were able to resist the impacts of these drugs, in other words, the pathogen remained alive. In order to help resolve the crisis, antibiotics were found through screenings of soil microorganisms. However, soil microorganism’s antibiotics were depleted by the 1960s and their antibiotic effects were unable to be replicated through synthesis. In this experiment, the researchers developed…

are considered to be plants which have been modified using genetic engineering to alter their DNA. This is used to introduce a new trait to the plant which doesn’t occur naturally such as resistance to certain diseases, insects, environmental conditions, decreases the likelihood of spoiling, increases resistance to herbicides and/or pesticides, or improve the overall crop. Unlike cross fertilization process, genes that have been genetically modified are inserted directly into the DNA of the…

crucial in the host innate immune system. S. aureus has the ability to evade these systems and cause infections in the host and the processes involve many secreted and cell-surface-associated proteins [7]. The ability of the organism to resist antibiotics is another mechanism…

strains of e.coli.1 These special strains possess an inherent tetracycline resistance from the insertion of a “marker” 2’ upstream or downstream from a targeted gene. These tetracycline marked strains possess the same genome as wild type strains, and thus through conjugation can transfer a tetracycline resistance. The particular strain used in this experiment was the wild-type CV1437 non-pathogenic E.Coli that has an innate resistance to…

So how exactly does antibiotic-resistant strain get transmitted to human? According to one of the study conducted recently, there are at least three mechanisms in which antibiotic-resistant strain can get transmitted to humans (Lipsitch, Singer & Levin, 2002, p.5753). Out of the all possible transmission methods, ingestion of bacteria from contaminated…

The 5 modes of action for antimicrobial drugs can affect the cell wall. It affects the peptidoglycan layer on the cell wall. It does this by breaking the peptidoglycan chains apart. An example of a drug is penicillin, methicillin and ampicillin. The second thing they can do is affect the plasma membrane. They do this by breaking up the lipids o the plasma membrane. Some drugs that do this are polymyxin, bacitracin. Most are antibacterial and anti-fungal drugs. The third thing they can do I s…

become a reality for anyone that eats meat? Antibiotics are known as a miracle cure. The definition of antibiotics from South Dakota State University is; Antibiotics are medicines that are given to people or animals to treat or prevent certain illnesses caused by bacteria. Antibiotics either kill or hinder the growth of harmful bacteria in animals and people. At one point or another everyone has had an antibiotic. One worry scientists have about antibiotics is that they may be losing their…

of nosocomial infection in ICUs is much greater than in the general in-patient population of hospital. The rates and types of hospital acquired infection, the distribution of microorganism that cause the infection and the pattern of antimicrobial resistance vary across geographic regions in different hospitals also in different ICUs of the same hospital. Nosocomial infections affect patient morbidity and mortality. Health care works especially those with poor hand hygiene…

INTRODUCTION This paper looks at the difference between gram negative and gram positive bacterium. This is important when doing gram staining experiments. It also looks at the importance of microbiology. DIFFERENCES OF GRAM NEGATIVE AND GRAM POSITIVE BACTERIUM There are notable differences between the gram negative and gram positive bacterium. Gram negative bacterium is surrounded by a thin peptidoglycan cell wall while Gram positive has a thick layer of peptidoglycan. The peptidoglycan around…