Current Review on Molecular and Phenotypic Mechanism of Bacterial Resistance to Antibiotic
Issue:
Volume 7, Issue 2, March 2018
Pages:
13-19
Received:
9 March 2018
Accepted:
2 April 2018
Published:
8 May 2018
Abstract: Antibiotic-resistant bacteria that are difficult to treat are becoming increasingly common and are causing a global health crisis. molecular mechanism bacterial resistance of antibiotic is, necessary in order to find ways to avoid conditions that promote disobedient pathogens. The objectives of this seminar paper are to review the genetics of molecular mechanism of antibiotic resistance and to describe different molecular intrinsic, acquired, circumstantial resistance; genetics of antibiotic resistance and phenotypic drug resistance those specified by mechanisms confer antibiotic resistance. These drug resistance mechanisms allow bacteria that harbor these mechanisms to survive, or even to actively grow, in the presence of a given anti-microbial agent. Furthermore, certain bacterial variants have evolved mechanisms to resist multiple drugs, making such variants recalcitrant to chemotherapy against such bacterial strains that are the causative agents of infection in patients. Knowing the molecular mechanisms of antibiotic resistance is essential for developing new approaches to overcome and prevent drug resistance problems. Studding of development and mechanisms of resistance should be known at an early stage of drug development and strategies to improve the delivery or to enhancing the accessibility of antibiotics to their sites of action should be known.
Abstract: Antibiotic-resistant bacteria that are difficult to treat are becoming increasingly common and are causing a global health crisis. molecular mechanism bacterial resistance of antibiotic is, necessary in order to find ways to avoid conditions that promote disobedient pathogens. The objectives of this seminar paper are to review the genetics of molec...
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Isolation, Identification and Antibiotic Susceptibility Pattern of Bacteria Isolated from Wounds of Patients Attending at Arsho Advanced Medical Laboratory
Messele Admassie,
Estifanos Tsige,
Meseret Chanie
Issue:
Volume 7, Issue 2, March 2018
Pages:
20-24
Received:
9 March 2018
Accepted:
2 April 2018
Published:
11 May 2018
Abstract: Wound infections cause clinical and societal consequences on the patients, but its bacteriological characteristicvaries with different factors. Therefore, effective treatment and management of wound infections in hospital and communitysetting will require detailed epidemiological knowledge of the infecting bacterial pathogens and their antibiogramunusual to theenvironment. Based on this information, we examined the frequency and antibiogram of bacterial pathogens isolated from woundinfection cases seen at ArshoAdvancedmedical laboratory over the study period. A total of 259 wound swabs/ and pus of different types of woundinfections from different anatomical sites were analyzed by standard bacteriological methods. Of the 259 clinical specimens analyzed, 177 (68.4%) yielded at least one bacterial pathogens, 6(2.3%) were polymicrobial, and 82(31.6%) yielded no bacterial growth. Overall, 20 different bacterial pathogens were identified 15 (75%) gram-negative bacteria isolates and 5(25%) gram-positive bacterial isolated. Staphylococcus aureus accounted formajority of the bacterial pathogens isolated, 86 (48.6% followed by E.coli20 (11.3%, and Citrobacterspp. 17(9.6%). The bacterial pathogens demonstrated high resistance to amoxicillin (79.7 %%), ampicillin (78.3%), and tetracycline (73.1%), in contrastto high sensitivity pattern observed with Meropinem (94.5%), Levofloxacin (87%), Amikacin (82.4%), and Ceftazidime (72.7%). Amikacin, meropenem and levofloxacin were the most effective drugs against the tested gram- positive and -negative bacteria and should be considered in empirical antibiotic selection.
Abstract: Wound infections cause clinical and societal consequences on the patients, but its bacteriological characteristicvaries with different factors. Therefore, effective treatment and management of wound infections in hospital and communitysetting will require detailed epidemiological knowledge of the infecting bacterial pathogens and their antibiogramu...
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