scholarly journals Anti-plasmid activity of Chlorpromazine in types of antibiotics resistant pathogenic bacteria

2021 ◽  
Vol 26 (4) ◽  
Author(s):  
Alaa Qasim ◽  
Muhsin Ayoub Essa
Keyword(s):  
Antibiotic Resistance ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Antibiotics Resistance ◽  
Bacterial Strains ◽  
Before And After ◽  
Bacteria Resistance ◽  
New Strategies

This study was performed to evaluate the ability of chlorpromazine compound to cure the plasmids and remove the antibiotic resistance character of multidrug resistance Gram-negative pathogenic bacteria. The curing experiment was done by incubating bacterial strains in nutrient broth with sub MIC concentration of chlorpromazine, and the disc diffusion method was used before and after curing to evaluate antibiotic resistance pattern of bacteria. Synergetic test of chlorpromazine with antibiotics that the studied bacteria showed resistance toward also done. The results showed the ability of chlorpromazine to remove the plasmids from four bacterial genera out of five genera, where the most plasmid removal cases was with E.cloacae, P.aeruginosa, and P.merabilis, and the loss of antibiotics resistance was observed in the same bacterial genera, but P.merabilis showed the most antibiotics resistance losing by three antibiotics out of nine antibiotics that the bacteria were resistant to them before curing. As for the synergistic effect, the compound showed a synergism with only two antibiotic and with the three aforementioned bacterial genera. From results of this study we concluded the possibility of removing bacteria resistance to antibiotics by eliminating plasmids through using chlorpromazine, and the possibility of using this compound in synergism with antibiotics, this will open the way to find new strategies  to treat many diseases caused by resistant bacteria.

scholarly journals The Antibacterial Activities of NiO Nanoparticles Against Some Gram-Positive and Gram-Negative Bacterial Strains

2019 ◽  
Vol 4 (2) ◽  
pp. 69-74
Author(s):  
Ghazaleh Ilbeigi ◽  
Ashraf Kariminik ◽  
Mohammad Hasan Moshafi
Keyword(s):  
Antibiotic Resistance ◽  
Antibacterial Properties ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Gram Negative Bacteria ◽  
Nio Nanoparticles ◽  
Bacterial Strains ◽  
Gram Positive ◽  
Gram Negative

Introduction: Given the increasing rate of antibiotic resistance among bacterial strains, many researchers have been working to produce new and efficient and inexpensive antibacterial agents. It has been reported that some nanoparticles may be used as novel antimicrobial agents.Here, we evaluated antibacterial properties of nickel oxide (NiO) nanoparticles. Methods: NiO nanoparticles were synthesized using microwave method. In order to control the quality and morphology of nanoparticles, XRD (X-ray diffraction) and SEM (scanning electronmicroscope) were utilized. The antibacterial properties of the nanoparticles were assessed against eight common bacterial strains using agar well diffusion assay. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were measured. Antibiotic resistance pattern of the bacteria to nine antibiotics was obtained by Kirby-Bauer disk diffusion method. Results: The crystalline size and diameter (Dc) of NiO nanoparticles were obtained 40-60 nm. The nanoparticles were found to inhibit the growth of both gram-positive and gram-negative bacteria with higher activity against gram-positive organisms. Among bacterial strains, maximum sensitivity was observed in Staphylococcus epidermidis with MIC and MBC of 0.39 and 0.78 mg/mL, respectively. The bacteria had high resistance to cefazolin, erythromycin, rifampicin,ampicillin, penicillin and streptomycin.Conclusion: NiO nanoparticles exhibited remarkable antibacterial properties against gram positive and gram-negative bacteria and can be a new treatment for human pathogenic and antibiotic-resistant bacteria.

scholarly journals Presence of blaCTX-M antibiotic resistance gene in Lactobacillus spp. isolated from Hirschsprung diseased infants with stoma

2019 ◽  
Vol 13 (05) ◽  
pp. 426-433 ◽  
Author(s):  
Umama Khan ◽  
Sadia Afsana ◽  
Maria Kibtia ◽  
Mahboob Hossain ◽  
Naiyyum Choudhury ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Gene ◽  
Resistance Genes ◽  
Pathogenic Bacteria ◽  
Antibiotic Resistance Gene ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Antibiotic Resistance Pattern ◽  
Lactobacillus Spp

Introduction: Although antibiotics have revolutionized health care by saving lives, the evolution of both pathogenic and commensal antibiotic-resistant bacteria are emerging as a threat in the health sector. As for Lactobacillus spp., it is usually a non-pathogenic bacteria. However, it can cause infection in immunocompromised condition. In this study, Lactobacillus spp. has been isolated from the faeces of infants with Hirschsprung disease (HD), which is congenital aganglionosis of intestine, where surgical approach and antibiotics are frequently used as medical intervention. The aim of this study is to assess the antibiotic resistance pattern and determine the presence of resistance genes, if any, in Lactobacillus spp. isolated from HD infants with ileostomy. Methodology: Six Lactobacillus spp. were isolated from faeces of six HD infants and confirmed using both conventional and molecular methods. Antibiotic resistance pattern was checked through disc diffusion method and was further investigated for the presence of antibiotic resistance genes (blaTEM, blaCTX-M, blaOXA-2, blaIMP, blaVIM-2, blaNDM-1 and mcr-1). Results: Antibiotic susceptibility of the isolates showed high level of resistance towards cephalosporins, oxacillin, aztreonam, meropenem and polymyxin group. However, four of the isolates showed the presence of blaCTX-M gene after PCR amplification. Conclusions: To our knowledge, this is the first report on the presence of antibiotic resistance gene blaCTX-M in Lactobacillus spp. and this presence may pose a serious threat in treatment regimen. As not much is known regarding the presence of blaCTX-M in Lactobacillus spp., this finding may provide new light to research on antibiotic resistance in gut microflora.

scholarly journals Isolation and selection of bacteria against shrimp pathogenic Vibrio parahaemolyticus from shrimp pond water on Duyen Hai district, Tra Vinh province

2020 ◽  
Vol 10 (1) ◽  
pp. 43-52
Author(s):  
Tran Vu Phuong ◽  
Dang Thi Ngoc Thanh ◽  
Cao Ngoc Diep
Keyword(s):  
Vibrio Parahaemolyticus ◽  
Pathogenic Bacteria ◽  
Pond Water ◽  
Shrimp Farming ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Bacterial Strains ◽  
Shrimp Pond ◽  
Pathogenic Vibrio ◽  
The Status

Antibiotic has frequently been used in the shrimp-farming process in Vietnam. This leads to the status that antibiotic-resistant bacteria and products do not receive in the market. Bacteria had the resistant ability to pathogenic bacteria in water, and they have an important role in sustainable aquaculture. This study aimed to isolate and select good bacterial strains against Vibrio parahaemolyticus, pathogenic bacteria, on shrimp from 8 samples of shrimp pond water at 3 villages Ngu Lac, Phuoc An and Long Toan of Duyen Hai district, Tra Vinh province on NB agar medium. As a result, fifty-nine bacterial isolates were isolated and 10/59 isolates (16.95%) were identified as resistant to Vibrio parahaemolyticus by the well diffusion method. In 10 isolates, there were 7 isolates had good resistance to select for PCR technique and sequencing. The result indicated that these seven strains, including DH1m, DH2f, DH4d, DH8i, DH8m, DH8n, belonged to Bacilli and DH1n strain belonged to Streptomyces sp.

scholarly journals Antibiotics Resistance Pattern of Staphylococcus aureus Isolated From In-patients of an Orthopaedic Hospital in North-Western Nigeria

2021 ◽  
Vol 8 (4) ◽  
pp. 160-166
Author(s):  
Dominic Agbo Oche ◽  
Paul Ifeleke Oyegoke ◽  
Maryloveth Oluchukwu Akpudo ◽  
Busayo Olalekan Olayinka
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Bone Diseases ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Antibiotics Resistance ◽  
Drug Resistant ◽  
Disk Diffusion Method ◽  
Cross Sectional ◽  
Orthopaedic Hospital

Background and aims: Staphylococcus aureus, an important pathogen in bone diseases, is a highly multi-drug resistant (MDR) bacterium. This study aimed to investigate the antibiotic resistance among S. aureus isolated from patients on admission in an orthopaedic hospital. Methods: In this cross-sectional research, 140 samples comprising urine samples, wound swabs, and nasal swabs were collected from 49 patients on admission. Samples were cultured and screened for S. aureus following standard procedures. Using the agar-disk diffusion method, the isolates were subjected to antibiotics susceptibility tests. Results: S. aureus were isolated from 26 (18.6%) samples, and wound swabs were found to have the highest number of the S. aureus isolates with 12 (46.2%). Among the 26 S. aureus isolated, 25 (96.2%) isolates were resistant to at least four or more of the tested antibiotics. There were 23 (88.5%) MDR isolates, while there were only 2 (7.6%) extensively drug resistant ones. The number of methicillin-resistant S. aureus were 17 (65.4% of the isolates), while the number of methicillin-susceptible S. aureus were 9 (34.6% of the isolates). A total of 22 (84.6%) isolates had multi-antibiotic resistance (MAR) index greater than 0.2. Inducible clindamycin resistance of 2 (7.6%) was observed. Conclusion: This study showed that the S. aureus isolated from the patients were resistant to multiple antibiotics. Regular surveillance of antibiotic resistance is of utmost importance, since it facilitates the design or development of the treatment regimens that could check the spread of antimicrobial resistance.

scholarly journals Antibiotic resistance pattern of uropathogens in urinary tract infections in children at State Referral Hospital, Falkawn, Mizoram, India

2018 ◽  
Vol 5 (6) ◽  
pp. 2108
Author(s):  
F. Elizabeth Lalhmangaihzuali ◽  
Zarzoliana . ◽  
Zorinsangi Varte ◽  
Gracy Laldinmawii
Keyword(s):  
Antibiotic Resistance ◽  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Referral Hospital ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Antibiotics Resistance ◽  
Biochemical Tests ◽  
High Level ◽  
Tract Infections

Background: Analysing antibiotic susceptibility pattern of uropathogens help to overcome the therapeutic difficulties created by the rising anti-microbial resistant bacteria and guides in choosing appropriate antibiotics. Hence, we aimed at evaluating the uropathogens causing urinary tract infections and study their antibiograms.Methods: Midstream urine samples were collected, cultured and appropriate biochemical tests were performed for proper identification of urinary tract pathogens in State Referral Hospital Falkawn, Mizoram, India from 1st January to 30th June 2018.Results: The most common isolated gram-negative uropathogens were Escherichia coli (40.9%), followed by Klebsiella spp. (17.6%), Proteus spp. (10.7%) and Pseudomonas spp. (3.1%). Among gram-positive organisms Enterococcus spp. (20.1%) and Staphylococcus spp. (7.6%) were grown. Urinary tract infections were more prevalent in girls (64.8%) than boys (35.2%). High level of resistance was found to amoxycillin/ampicillin by all the organisms isolated.Conclusions: Almost all the test organisms exhibited multiple antibiotic resistance. The study identified multiple antibiotics resistance by uropathogens which were earlier used as first line of treatment of UTI in children.

scholarly journals Antibiotics Susceptibility Pattern of Bacteria Isolated from Ready-To-Eat Vegetables Sold in Mohammadu Gumi Market, Kaduna, Nigeria

2021 ◽  
Vol 16 (2) ◽  
pp. 131-137
Author(s):  
A.F. Obajuluwa ◽  
A. Kefas ◽  
S.K. Parom
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Susceptibility ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Antibiotics Resistance ◽  
Salmonella Spp ◽  
Methicillin Resistant ◽  
Agar Disc

Background: Freshly consumed vegetables are considered to have more nutritional value than cooked ones. However, they are a potential source of foodborne illnesses due to possible microbial contamination, this poses safety threat.Objectives: This study was carried out to determine the bacteriological quality of ready-to-eat vegetables sold in Mohammadu Gumi market, Kaduna and to determine the antibiotics resistance pattern of the bacteria isolates.Methods: A total of 40 samples of cabbage were collected. Gram staining, growth on selective media and biochemical tests were carried out to identify the isolates. Antimicrobial susceptibility testing was done using the Kirby-Bauer agar disc diffusion method. Methicillin resistant Staphylococcus aureus isolates were detected with the use of cefoxitin disc agar diffusion test.Results: A total of 46 bacteria isolates were obtained with a total colony count range from 4 – 9 x 106CFU/ml. The following bacteria were isolated:   aureus (41.3%), Escherichia coli (28.3%), Salmonella spp (19.6%),  Pseudomonas aeruginosa (8.7%) and Serratia spp (2.2%). The result of antimicrobial susceptibility test showed thatthe isolates were highly susceptible to ofloxacin: Staphylococcus aureus, Pseudomonas aeruginosa, Serratia spp (100%), E. coli (92.3%) and Salmonella spp (87.5%). The isolates were all resistant to penicillin and ampicillin while 89.5% of the Staphylococcus aureus isolates were phenotypically methicillin resistant Staphylococcus aureus.Conclusion: This study showed that the vegetables (cabbage) were highly contaminated with antibiotic resistant bacteria, this can be a source of infection to the consumers and a potential means of transmitting multidrug resistant bacteria strains in the community.

scholarly journals Antimicrobial Activity of Kalanchoe blossfeldiana and Paederia foetida Plant Leaves’ Extracts Against Some Selected Bacterial Strains

2020 ◽  
Vol 6 (3) ◽  
pp. 1-7
Author(s):  
Arnaba S Chaity ◽  
Tamanna Nasrin ◽  
Khandker J Ferdouse ◽  
Md. Fazlul Haque ◽  
Md. Asadul Islam ◽  
...  
Keyword(s):  
Xanthomonas Campestris ◽  
Pathogenic Bacteria ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Dilution Method ◽  
Bacterial Strains ◽  
Kalanchoe Blossfeldiana ◽  
Paederia Foetida ◽  
Kalanchoë Blossfeldiana

There is an alternative approach to control the infectious diseases caused by pathogenic bacteria, especially resistant bacteria. This study was designed to determine the antimicrobial activities of Kalanchoe blossfeldiana and Paederia foetida plants’ extracts against some selected bacterial strains. K. blossfeldiana and P. foetida leaves were extracted in methanol. In vitro antibacterial activities were evaluated against 12 bacterial strains including, Staphylococcus gallinarum, Staphylococcus sciuri, Streptococcus constellatus, Streptococcus iniae, Aeromonas diversa, Xanthomonas campestris, Xanthomonas axonopodis, Siccibacter colletis, Edwardsiella anguillarum, Aeromonas cavernicola, Enterobacter xiangfangensis, and Vibrio rotiferianus. Antimicrobial activities were screened by the disk diffusion method. In addition, minimum inhibitory concentration (MIC) was determined using broth dilution method. Data were analyzed using SPSS 16 statistical software. In antimicrobial screening, both the plant extracts showed highest inhibition (15 mm zone diameter) against S. gallinarum at the concentration of 20 μg/disk and 15 μg/disk, respectively. In the MIC test, both K. blossfeldiana and P. foetida leaves’ extracts showed the lowest MIC value of 100 μg/ml on V. rotiferianus and S. iniae, respectively. From the above findings, it can be concluded that the extracts may be used as a natural antibacterial agent for the treatment of some bacterial diseases. Further investigations on the chemical composition and possible isolation of active ingredients are warranted.

scholarly journals Antibiotics resistance in pathogenic bacteria isolated from water and sediment around the floating fish farms in the Nha Trang bay

2021 ◽  
Vol 20 (4A) ◽  
pp. 199-209
Author(s):  
Nguyen Kim Hanh ◽  
Nguyen Trinh Duc Hieu ◽  
Nguyen Minh Hieu ◽  
Vo Hai Thi ◽  
Pham Thi Mien ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Pathogenic Bacteria ◽  
Water Environment ◽  
Resistant Bacteria ◽  
Antibiotics Resistance ◽  
Antibiotic Resistant Bacteria ◽  
Antibiotic Resistant ◽  
Water And Sediment ◽  
Nha Trang Bay ◽  
The Impact

To assess the impact of antibiotic use in aquaculture in Nha Trang bay, we conducted this study with the aim of assessing antibiotic resistance of opportunistic pathogenic bacteria isolated from water and sediment around shrimp/fish cages in the Nha Trang bay. 109 strains of Vibrio, Salmonella-Shigella and Aeromonas groups were isolated in the surrounding environment of farming areas in Dam Bay and Hon Mieu. Antimicrobial resistance test of these 109 strains showed that in the water environment in Dam Bay, TET (96.6%) and NIT (92.5%) were the two antibiotics with the highest rates of resistant bacteria while no bacteria were resistant to RIF. All 5 types of antibiotics had a statistically insignificant percentage of antibiotic-resistant bacteria in water samples at Hon Mieu, ranging from 33.3% to 68.9%. Also in the water environment, the rate of antibiotic-resistant bacteria in Dam Bay was not influenced by the distance to the cages (42.5–66.6%). Meanwhile, in Hon Mieu, the highest rate of resistant bacteria was observed at the distance of 200 m (100%) away from cages and the lowest rate at the distance of 100 m (20%). In the sediment environment around the cages, both the Dam Bay and Hon Mieu farming areas showed the highest rates of antibiotic-resistant bacteria against TET, NIF and RIF had the lowest rate of resistant bacteria. Among the total of 109 strains tested for antibiotic resistance, 2 strains labeled TCBS_HM200 m and SS_HM200 m were found to be resistant to all 5 tested antibiotics. These two strains were respectively identified as Vibrio harveyi and Oceanimonas sp.

scholarly journals Occurrence of Multi-drug Resistant Bacteria in Some Selected Street Food Samples

2019 ◽  
pp. 1-8
Author(s):  
Mohamed H. El-Sayed
Keyword(s):  
Public Health ◽  
Antibiotic Resistance ◽  
Bacterial Species ◽  
Food Samples ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Drug Resistant ◽  
Bacterial Strains ◽  
Gram Negative ◽  
Drug Resistant Bacteria

Antimicrobial resistance is a subject of great concern in the public health. The prevalence of antimicrobial resistance among food pathogens has increased during recent decades. Studying the incidence and antibiotic resistance pattern of bacterial species isolated from fish and vended street fruits.   Eleven fish swabs and thirteen sliced fruit samples were collected and prepared for isolation of bacterial species through inoculation onto selective and non-selective nutrient media. The grown colonies were purified through subculturing on nutrient agar plates then identified by morphological and biochemical methods. The obtained pure cultures were then kept on nutrient agar slants. Testing antibiotic resistance of the isolated bacterial strains was studied by Kirby-Bauer disk diffusion method on Mueller Hinton agar using ten antibiotics belonging to different classes. The resultant inhibition zone was interpreted according to Clinical Laboratory Standard Institute. Twenty-eight bacterial cultures were isolated from the collected food samples. The conventional identification using morphological and biochemical methods of these cultures revealed presence of three Gram positive species; Staphylococcus aureus, Streptococcus sp. and Bacillus subtilis in addition to four Gram negative; Escherichia coli, Brucella sp., Enterococcus faecalis and Proteus mirabilis. The incidence of the obtained bacterial species was arranged as 29.16% for both S. aureus and E. faecalis followed by Brucella sp. 16.66%; B. subtilis & E. coli 12.5% then Streptococcus sp. and P. mirabilis with an incidence of 8.33% each. Testing antibiotic resistance pattern of seven bacterial species against ten antibiotics showed that, among three Gram positive bacterial species, only one (33.33%) strain S. aureus exhibited resistance to six antibiotics; amoxicillin, erythromycin, ciprofloxacin, ceftriaxone, fluconazole and dicloxacillin. Among four Gram negative bacterial strains only one (25.0%) strain Enterococcus faecalis exhibited resistance to eight antibiotics; amoxicillin, streptomycin, chloramphenicol, cotrimoxazole, ciprofloxacin, ofloxacin, sparfloxacin and cloxacillin. Occurrence of multi-drug resistant bacteria in fish and vended street fruits poses not only risk of disease to the foods but public health hazard to food handlers and consumers in general. Also the result of this study recommended augmentin and cephazolin as good choice antibiotics for treatment of infection in the study area. 

scholarly journals Determination of antibiotic resistance patterns of Vibrio parahaemolyticus from shrimp and shellfish in Selangor, Malaysia

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Vengadesh Letchumanan ◽  
Nurul-Syakima Ab Mutalib ◽  
Sunny Hei Wong ◽  
Kok-Gan Chan ◽  
Learn-Han Lee
Keyword(s):  
Antibiotic Resistance ◽  
Vibrio Parahaemolyticus ◽  
Bacterial Infections ◽  
Pathogenic Bacteria ◽  
Large Scale ◽  
Health Concern ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Resistance Patterns ◽  
Plasmid Profiling

High consumer demand for seafood has led to the need for large-scale, reliable supply through aquaculture farming. However, bacterial infections - which can spread rapidly among the dense farming area pose a major threat to this industry. The farmers therefore often resort to extensive use of antibiotics, both prophylactically and therapeutically, in order to protect their stocks. The extensive use of antibiotics in aquaculture has been postulated to represent a major contributing factor in the rising incidence of antimicrobial resistant pathogenic bacteria in seafood; which may then lead to the spread of antimicrobial resistant bacteria in the environment as well as posing a significant threat to human health. This study aimed to characterize antibiotic resistance of Vibrio parahaemolyticus from shrimp and shellfish in Selangor, Malaysia. The antibiotic susceptibility of 385 V. parahaemolyticus isolates was investigated against 14 antibiotics followed by plasmid profiling and plasmid curing to determine the antibiotic mediation. A large number of isolates showed resistance to ampicillin (85%), amikacin (66.8%), and kanamycin (50.1%). A notable resistance pattern was also observed to the third generation cephalosporins (cefotaxime 55.8% and ceftazidime 34%). Only 338 V. parahaemolyticus isolates had 1-7 different plasmids and could be categorized into 27 patterns based on the number and pattern of plasmid present. Interestingly, there was no correlation between the number of plasmids and antibiotic resistant patterns seen in the isolates. The antibiotic resistance was mediated by both chromosomal and plasmid mediation among the resistant isolates. In summary, our results demonstrate that incidence of pathogenic V. parahaemolyticus in seafood in Selangor remains in relatively assuring levels, however the identification of antibiotic resistance among the isolates does rises a public health concern and warrants for continuous surveillance.

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