Antimicrobial

Throughout all of history humans have been trying to find new and more efficient cures. Often times these cures are based on observations of natural elements. I choose the article, Researchers Find Antimicrobial Substances in Komodo Dragon Blood from the George Mason University, because I was interested by what made their blood special compared to other creatures. The article analyzed why Komodo dragons are resistant to the bacteria found in their saliva, which is used to kill prey. Researchers…

This paper will discuss two different issues disinfectants and antimicrobial agent susceptibility testing/resistance. To better understand disinfectants we will further explore topics such as: the meaning of bactericidal, bacteriostatic, virucidal, and fungistatic; the importance of using a control culture when evaluating disinfectants; factors that can impact the activity of disinfectants; microorganism having different responses to disinfectants; and identifying the microorganism susceptible…

ASSIGNMENT # 3: ANTIMICROBIAL ACTION AND ANTIMICROBIAL RESISTANCE 1. Antimicrobial resistance is MAINTAINED in the environment by Selective Pressure. Discuss 3 types of selective pressure and how each could be avoided. One type of selective pressure is the use of antibiotics to treat viral infections. This could be avoided by educating the public that antibiotics do nothing for a viral infection. Doctors should also stop giving into patient’s demand for antibiotics for a viral infection.…

The scientific context of the Antimicrobial Susceptibility test is to gauge the viability of antimicrobials and other chemotherapeutic agents on pathogenic organisms in recommending a suitable treatment. The scientific context of the the API 20E test is clinically used in quickly identifying enterobacteriaceae bacteria and gram-negative rods. In the Antimicrobial Susceptibility experiment, three microorganisms which were Staphylococcus aureus, Escherichia coli, and the unknown were put into…

vitro. The need for antibiotic sensitivity testing is urgent due to the surge of antimicrobial resistant pathogens in recent years. Antimicrobial resistance hinders the prevention and treatment of the infections caused by parasites, bacteria, fungi and viruses. Antimicrobial resistance is the resistance of a pathogen to an antimicrobial that was used to treat any infections caused by that particular pathogen. Antimicrobial resistance is a global problem. Antibiotic resistance hampers the…

design small compounds with drug like properties [1]. Quinoxaline is well known for its broad coverage in the field of medicine as well as for its application in the pharmaceuticals as they have shown wide range of biological properties such as antimicrobial [2], antibacterial [3], antitubercular [2, 4], antiprotozoal [5] , anti-candida [2, 6], anti-cancer [7], anti-AIDS [8] and anti-inflammatory [9] activities. Many scientists report quinoxalinone derivatives as non-classical analogues of the…

The heretical concept of antimicrobial resistance: In mid 1950 which is known to be one of the most significant year of Medical science when genetically transferred antibiotic resistance was identified in Japan and a theory has established on the basis of scientific data is that during Bacterial conjugation resistance genes or r genes are propagated from one strain to an entire population. Therefore Bacterial Genome evolution has started taking place as one of the major fields in Microbiology,…

Results: This study compared the antimicrobial effect of two herbal oils (Coconut and Nigella sativa oil) versus Chlorhexidine gluconate 0.2 % as gold standard on 3 types of oral cariogenic microorganisms (Streptococcus mutans, Lactobacilli and Candida albicans) 1- Streptococcus mutans: The results of this study showed that coconut oil had a statistically significant higher inhibitory effect on SM with decrease in number of CFU from 500 to 40 and 53.7 and percentage of reduction 92%…

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…

1.2.2 Mechanism of antibiotic resistance Bacteria may become resistant to various antimicrobial agents through several mechanisms. Major mechanisms of antibiotic resistance in bacteria includes : (1) modification in target site so the antibiotic cannot recognise the target; (2) enzyme production that will inactivate or modify the drug before its effect; (3) expelling or extruding the antibiotic outside the cell by one or more efflux pumps so the drug is unable to reach the target site to exert…