Displaying publications 61 - 80 of 244 in total

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  1. Tanil GB, Radu S, Nishibuchi M, Rahim RA, Napis S, Maurice L, et al.
    PMID: 16295549
    Twenty-one Vibrio parahaemolyticus isolates representing 21 samples of coastal seawater from three beaches in peninsular Malaysia were found to be sensitive to streptomycin, norfloxacin and chloramphenicol. Resistance was observed to penicillin (100%), ampicillin (95.2%), carbenicilin (95.2%), erythromycin (95.2%), bacitracin (71.4%), cephalothin (28.6%), moxalactam (28.6%), kanamycin (19.1%), tetracycline (14.3%), nalidixic acid (9.5%) and gentamicin (9.5%). Plasmids of 2.6 to 35.8 mDa were detected among plasmid-containing isolates. All isolates carried the Vp-toxR gene specific to V. parahaemolyticus and were negative for the tdh gene, but only one isolate was positive for the trh gene. DNA fingerprinting of the isolates using ERIC-PCR and PFGE showed that the isolates belong to two major clonal groups, with several isolates from different locations in the same group, indicating the presence of similar strains in the different locations.
    Matched MeSH terms: Drug Resistance, Microbial
  2. Lim VKE, Halijah MY
    Med J Malaysia, 2001 Sep;56(3):365-9.
    PMID: 11732084
    The in vitro activity of sulperazon (cefoperazone/sulbactam) was tested against 94 ceftazidime-resistant strains of bacteria isolated from mostly seriously ill patients in critical care units. Acinetobacter baumanii, Pseudomonas aeruginosa and Klebsiella pneumoniae made up 80% of the pathogens studied; 90% of the Klebsiella strains were producers of extended-spectrum beta-lactamases (ESBL). The MIC90 of sulperazon for Klebsiella was 12 mg/l (range 1.5-16 mg/l), indicating that this drug may be a useful alternative for the treatment of ceftazidime-resistant, ESBL-producing Klebsiella.
    Matched MeSH terms: Drug Resistance, Microbial
  3. Sharma HS, Kurl DN, Hamzah M
    Auris Nasus Larynx, 1998 Dec;25(4):403-6.
    PMID: 9853664
    Retropharyngeal abscess (RPA) is relatively rare today. A study of 17 cases of RPA treated at our hospital in the past 10 years showed a shift in the disease from children below 6 years of age (41%) to older children and adults (58%). Upper respiratory tract infection (URTI) was found to be the commonest (52%) aetiological predisposing factor in all age groups. Other aetiological factors were septicaemia (11%) in children below the age of 6 years and trauma due to foreign body (35%) in the older children and adult age groups. Klebsiella, Staphylococcus and Streptococcus were the commonest species of microorganisms grown from pus. The changing clinical trends, microbiology, choice of antibiotics, usefulness of radiology, and complications of this potentially fatal illness are discussed.
    Matched MeSH terms: Drug Resistance, Microbial
  4. Majumder MAA, Singh K, Hilaire MG, Rahman S, Sa B, Haque M
    Expert Rev Anti Infect Ther, 2020 12;18(12):1245-1258.
    PMID: 32684048 DOI: 10.1080/14787210.2020.1796638
    INTRODUCTION: Antimicrobial resistance poses a serious threat to global health with significantly higher morbidity, mortality, and economic burden. This review aims to discuss the importance of the promotion of antimicrobial stewardship in medical and allied health professional curricula and training/educating tomorrow's doctors in combatting antimicrobial resistance. A narrative literature review was conducted to retrieve relevant information related to antimicrobial resistance and stewardship and their implications on medical and allied health professional education and training from searches of computerized databases, hand searches, and authoritative texts.

    AREAS COVERED: Antimicrobial stewardship programs improve rational antibiotic use, reduce antimicrobial resistance, decrease complications of antibiotic use, and improve patient outcomes. Though health professional students recognize the importance and impact of antibiotic prescribing knowledge, many studies have consistently demonstrated low levels of confidence and competencies amongst students, highlighting that health professional schools failed to prepare them to prescribe antibiotics accurately.

    EXPERT OPINION: There is an urgent call for the integration of antimicrobial stewardship teaching at the undergraduate level of medical education to train future prescribers on this critical aspect of public health. Proper undergraduate education on rational antibiotics use would enable health professional graduates to enter clinical practice with adequate competencies to become rational prescribers.

    Matched MeSH terms: Drug Resistance, Microbial
  5. Nusrat T, Akter N, Rahman NAA, Godman B, D Rozario DT, Haque M
    Hosp Pract (1995), 2020 Aug;48(3):128-136.
    PMID: 32271642 DOI: 10.1080/21548331.2020.1754687
    BACKGROUND: Ventilator-associated pneumonia (VAP) is the most common nosocomial infection in intensive care units (ICU), accounting for 25% of all ICU infections. Antimicrobial resistance is increasing and becoming a significant health problem worldwide, increasing hospital length of stay, mortality and costs. Identifying antibiotic resistance patterns in VAP is important as this can cause outbreaks in ICUs. To date, there have been limited studies assessing this in Bangladesh. Consequently, the primary objective of this research was to study the species of bacterial growth and to determine the antibiotic resistance patterns of Metallo-β-Lactamase (MBL) producing gram-negative bacilli among ICU patients with VAP in a public medical school hospital, Bangladesh. In addition, identify the factors associated with a positive culture to provide future guidance.

    METHOD: Cross-sectional study performed in the Chattogram Medical College Hospital, Bangladesh. Mueller Hinton agar plates were used for antibiotic sensitivity testing by the Kirby-Buer disc diffusion test.

    RESULTS: Among 105 clinically suspected VAP cases, qualitative cultures were positive in 95 (90%) of them. The most common bacteria identified were Acinetobacter spp. (43.2%), Klebsiella spp. (20%) and Pseudomonas spp. (18.9%). A positive culture was not associated with patients' age or gender. Among 41 isolated Acinetobacter spp., 38 (92.7%) were resistant to gentamicin followed by 36 (87.8%) to ceftriaxone. Among 24 isolated Klebsiella spp., 22 (83.3%) were resistant to ceftriaxone. Among 18 isolated Pseudomonas spp., 16 (88.8%) were resistant to ciprofloxacin, and 13 (72.2%) were resistant to ceftriaxone. Among nine isolated E.coli, all were resistant to ceftriaxone and ciprofloxacin. All four Proteus spp. (100%) isolated were resistant to ciprofloxacin. Additionally, phenotype MBL producing was 65.22% and genotype was 45.65% among imipenem resistant pathogens. Imipenem resistant pathogens were sensitive to amoxyclav, amikacin¸ azithromycin, ceftazidime, ceftriaxone, colistin and gentamycin.

    CONCLUSION: A positive culture was detected in 90% of VAP patients, but it was not associated with the patients' age and gender. The most common bacteria identified were Acinetobacter spp., Klebsiella spp. and Pseudomonas spp., where the majority of these were resistant to ceftriaxone. The results are being used to provide future guidance on the empiric management of VAP in this hospital.

    Matched MeSH terms: Drug Resistance, Microbial*
  6. Mirza S, Kariuki S, Mamun KZ, Beeching NJ, Hart CA
    J Clin Microbiol, 2000 Apr;38(4):1449-52.
    PMID: 10747124
    Molecular analysis of chromosomal DNA from 193 multidrug-resistant (MDR) Salmonella enterica serovar Typhi isolates from 1990 to 1995 from Pakistan, Kuwait, Malaysia, Bangladesh, and India produced a total of five major different pulsed-field gel electrophoresis (PFGE) patterns. Even within a particular country MDR S. enterica serovar Typhi DNA was found to be in different PFGE groups. Similar self-transferable 98-MDa plasmids belonging to either incompatibility group incHI1 or incHI1/FIIA were implicated in the MDR phenotype in S. enterica serovar Typhi isolates from all the locations except Quetta, Pakistan, where the majority were of incFIA. A total of five different PFGE genotypes with six different plasmids, based on incompatibility and restriction endonuclease analysis groups, were found among these MDR S. enterica serovar Typhi isolates.
    Matched MeSH terms: Drug Resistance, Microbial/genetics*
  7. Saleem Z, Hassali MA, Hashmi FK
    Lancet Infect Dis, 2018 10;18(10):1066-1067.
    PMID: 30303099 DOI: 10.1016/S1473-3099(18)30516-4
    Matched MeSH terms: Drug Resistance, Microbial*
  8. Jairoun A, Hassan N, Ali A, Jairoun O, Shahwan M, Hassali M
    Int J Gen Med, 2019;12:235-246.
    PMID: 31388309 DOI: 10.2147/IJGM.S200641
    Purpose: Antibiotic resistance is one of the world's most fatal health crises. Medical students are the antibiotic prescribers of tomorrow, so better understanding of their knowledge, attitudes, and practice (KAP) pertaining to antibiotic use is crucial. Objectives: This study aimed to assess the KAP of antibiotics and associated factors among university students in the United Arab Emirates (UAE). Methods: This was a descriptive cross-sectional study conducted among a random sample of undergraduate students from Ajman University in the UAE. A self-administered pretested questionnaire was used to collect data on students' demographics and their KAP regarding antibiotic use. Data were analysed using STATA version 14.2. P<0.05 was considered statistically significant. Results: This study showed that university students have a high rate of antibiotic self-medication. The average KAP score was 56% (95% CI 55%-57%). Statistical modeling showed that major, study year, age, and sex were strong determinants of KAP regarding antibiotic use. Conclusion: There is a need to develop an effective and comprehensive antibiotic-stewardship program as part of undergraduate education. Moreover, reinforcing antibiotic-use policies, involving pharmacies, drug supply, distribution, and sale, are also urgently needed.
    Matched MeSH terms: Drug Resistance, Microbial
  9. Alkadhimi A, Dawood OT, Hassali MA
    Pharm Pract (Granada), 2020 12 12;18(4):2095.
    PMID: 33343772 DOI: 10.18549/PharmPract.2020.4.2095
    Objective: This study aimed to understand the dispensing practice of antibiotics in community pharmacy in Iraq, in addition to explore the community pharmacists' perception about dispensing antibiotics without prescription.

    Methods: A qualitative design was conducted on community pharmacists in Baghdad, Iraq. Pharmacists were selected conveniently from different gender, age group, pharmacy type and years of experience. Face-to-face semi-structure interview was used with all the pharmacists to get in-depth understanding about their dispensing practice of antibiotics without prescription in community pharmacy. The data was coded and classified for thematic analysis.

    Results: This study found that dispensing of antibiotics without prescription was a common practice in community pharmacy. Pharmacists' perception towards dispensing antibiotics without prescription was associated with the medical condition, safety and efficacy of antibiotics, patients request antibiotics by name, emergency cases, regular customer, promotions from pharmaceutical companies, saving time and cost, brand medications, and poor healthcare services. In addition, there were inadequate knowledge about antibiotic resistance and lack of awareness about antibiotic stewardship leading to inappropriate dispensing practice.

    Conclusions: Community pharmacists have poor perception towards dispensing antibiotics without prescription. Educational interventions about antibiotics use focusing on community pharmacists are needed. This will help to optimize the practice of dispensing of antibiotics in the community. In addition, training programs about antibiotic resistance are important to enhance pharmacists' understanding about antibiotic stewardship.

    Matched MeSH terms: Drug Resistance, Microbial
  10. Wan Mat Khalir WKA, Shameli K, Jazayeri SD, Othman NA, Che Jusoh NW, Hassan NM
    Front Chem, 2020;8:620.
    PMID: 32974269 DOI: 10.3389/fchem.2020.00620
    Silver nanoparticles (Ag-NPs) have been established as antibacterial nanoparticles and have been innovatively developed to overcome the occurrence of antibiotic resistance in the environment. In this study, an environmentally friendly and easy method of the biosynthesis of Ag-NPs plants, mediated by aqueous extract stem extract of Entada spiralis (E. spiralis), was successfully developed. The E. spiralis/Ag-NPs samples were characterized using spectroscopy and the microscopic technique of UV-visible (UV-vis), X-ray Diffraction (XRD), Field Emission Transmission Electron Microscope (FETEM), zeta potential, and Fourier Transform Infrared (FTIR) analyses. Surface Plasmon Resonance (SPR) absorption at 400-450 nm in the UV-vis spectra established the formation of E. spiralis/Ag-NPs. The crystalline structure of E. spiralis/Ag-NPs was displayed in the XRD analysis. The small size, around 18.49 ± 4.23 nm, and spherical shape of Ag-NPs with good distribution was observed in the FETEM image. The best physicochemical parameters on Ag-NPs biosynthesis using E. spiralis extract occurred at a moderate temperature (~52.0°C), 0.100 M of silver nitrate, 2.50 g of E. spiralis dosage and 600 min of stirring reaction time. The antibacterial activity was tested against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, and Proteus vulgaris using an antibacterial disk diffusion assay. Based on the results, it is evident that E. spiralis/Ag-NPs are susceptible to all the bacteria and has promising potential to be applied in both the industry and medical fields.
    Matched MeSH terms: Drug Resistance, Microbial
  11. Jamal F, Pit S, Isahak I, Abdullah N, Zainal Z, Abdullah R, et al.
    PMID: 3660072
    A total of 90 cases of pneumococcal infections were identified at a major referral hospital in Kuala Lumpur, Malaysia during a study period of four years. Pneumonia was the most common clinical presentation (41 cases) followed by meningitis (19 cases). Of 48 patients who were followed-up during the microbiology consultation round, 11 died, 9 were children below two years old. Capsular typing was carried out on 57 strains of Streptococcus pneumoniae isolated from blood and body fluids of 43 children and 14 adults. 38 strains isolated from pharyngeal specimens were also typed. Types 6A (11 strains), 6B (7 strains), 14 (8 strains) and 19A (8 strains) predominated in children. The strains from older patients comprised 3 isolates from cerebrospinal fluid (types 18B, 6B and 14), five from blood (4 strains, type 1 and 1 strain, type 4) and six from pus (1 strain, type 14, 3 strains type 23F and 2 strains type 34). The isolates from pharyngeal specimens belonged to capsular type similar to those implicated in infections. 90% of the types reported in this study are included in the 23 valent pneumococcal vaccines. Minimum inhibitory concentrations of penicillin, cefuroxime, chloramphenicol and rifampicin were determined for selected strains. 4.1% of isolates were resistant to penicillin (3/74), 4.5% to cefuroxime (2/44), 6.5% to chloramphenicol (3/46) and 14.6% to rifampicin (6/41).
    Matched MeSH terms: Drug Resistance, Microbial
  12. Heymann DL
    J Public Health Policy, 2005 Apr;26(1):133-9.
    PMID: 15906882
    The microbes that cause infectious diseases are complex, dynamic, and constantly evolving. They reproduce rapidly, mutate frequently, breach species barriers, adapt with relative ease to new hosts and new environments, and develop resistance to the drugs used to treat them. In their article "Meeting the challenge of epidemic infectious diseases outbreaks: an agenda for research", Kai-Lit Phua and Lai Kah Lee clearly demonstrate how social, behavioural and environmental factors, linked to a host of human activities, have accelerated and amplified these natural phenomena. By reviewing published and non-published information about outbreaks of Nipah virus in Malaysia, severe acute respiratory syndrome (SARS) and avian influenza in Asia, and the HIV pandemic, they provide a series of examples that demonstrate the various social, behavioural and environmental factors of these recent infectious disease outbreaks. They then analyse some of these same determinants in important historical epidemics and pandemics such as plague in medieval Europe, and conclude that it is important to better understand the social conditions that facilitate the appearance of diseases outbreaks in order to determine why and how societies react to outbreaks and their impact on different population groups.
    Matched MeSH terms: Drug Resistance, Microbial
  13. Intan Azura Shahdan, Fatimah Zahrah Mohd Sobr, Mohammad Faiz Hizzuan Hanap, Hanani Ahmad Yusof, How, Fiona N.F.
    MyJurnal
    Dental plaque is a structurally and functionally organized biofilm. Modern molecular
    biological techniques have identified about 1000 different bacterial species in the dental biofilm,
    twice as many as can be cultured. Inherent resistance of biofilm bacteria to conventional
    antibiotics is alarming. It induces antibiotic resistance to an order of three or more in magnitude
    greater than those displayed by planktonic bacteria. Staphylococcus aureus is the most dominant
    bacterial species isolated from the saliva and dental plaques. One of the reasons for its
    pathogenicity is its ability to form biofilms. In this study, the resistance of S. aureus biofilms
    against a eries of metal-antibiotics, an alternative to the conventional antibiotics, was
    investigated. (Copied from article).
    Matched MeSH terms: Drug Resistance, Microbial
  14. Bujanda L, Nyssen OP, Ramos J, Bordin DS, Tepes B, Perez-Aisa A, et al.
    Am J Gastroenterol, 2024 Apr 01;119(4):646-654.
    PMID: 37983769 DOI: 10.14309/ajg.0000000000002600
    INTRODUCTION: Antibiotic resistance is one of the main factors that determine the efficacy of treatments to eradicate Helicobacter pylori infection. Our aim was to evaluate the effectiveness of first-line and rescue treatments against H. pylori in Europe according to antibiotics resistance.

    METHODS: Prospective, multicenter, international registry on the management of H. pylori (European Registry on H. pylori Management). All infected and culture-diagnosed adult patients registered in the Spanish Association of Gastroenterology-Research Electronic Data Capture from 2013 to 2021 were included.

    RESULTS: A total of 2,852 naive patients with culture results were analyzed. Resistance to clarithromycin, metronidazole, and quinolones was 22%, 27%, and 18%, respectively. The most effective treatment, regardless of resistance, were the 3-in-1 single capsule with bismuth, metronidazole, and tetracycline (91%) and the quadruple with bismuth, offering optimal cure rates even in the presence of bacterial resistance to clarithromycin or metronidazole. The concomitant regimen with tinidazole achieved an eradication rate of 99% (90/91) vs 84% (90/107) with metronidazole. Triple schedules, sequential, or concomitant regimen with metronidazole did not achieve optimal results. A total of 1,118 non-naive patients were analyzed. Resistance to clarithromycin, metronidazole, and quinolones was 49%, 41%, and 24%, respectively. The 3-in-1 single capsule (87%) and the triple therapy with levofloxacin (85%) were the only ones that provided encouraging results.

    DISCUSSION: In regions where the antibiotic resistance rate of H. pylori is high, eradication treatment with the 3-in-1 single capsule, the quadruple with bismuth, and concomitant with tinidazole are the best options in naive patients. In non-naive patients, the 3-in-1 single capsule and the triple therapy with levofloxacin provided encouraging results.

    Matched MeSH terms: Drug Resistance, Microbial
  15. Clyde DF, Han CM, Huang YS
    Trans R Soc Trop Med Hyg, 1973;67(1):146.
    PMID: 4591211
    Matched MeSH terms: Drug Resistance, Microbial*
  16. Sui, Sien Leong, Lihan, Samuel, Hwa, Chuan Chia
    MyJurnal
    The abuse of antibiotics usage in bird industry has resulted in the emerging antibiotic resistant Enterococci worldwide which has posed a threat clinically to human health. The present study was to screen and identify the potential virulence agents in antibiotic resistance E. faecalis in bird industry in Borneo. Enterococcus bacteria collected from the birds’ faeces and indoor air inside ten birdhouses were identified to species level and their antibiotic resistance was checked using antibiotic susceptibility discs. Specific primers using PCR assay were intended for the detection of four potential virulence genes (ace, AS, efaA, gelE). Out of the thirty-seven Enterococci faecal bacteria, the prevailing bacteria found were Enterococcus qallinacum (51%), Enterococcus faecalis (35%) and Enterococcus harae (8%). The airborne bacteria were reported as Enterococcus faecalis (5%) and Enterococcus qallinacum (1%). Twenty-seven percent of isolates were reported to have Multiple Antibiotic Resistance (MAR) index ≥ 0.2 with 9 distinct resistance patterns formed. E. faecalis showed higher resistance to vancomycin. Virulence genes were successfully reported in the 15 E. faecalis isolates. Sixty-seven percent of isolates were detected positive for four virulence genes, 27% possessed three (AS, efaA, gelE) genes and 6% possessed two (ace, AS) genes. Antibiotic resistance and virulence genes detection were significantly correlated. These virulence genes or antibiotic resistance genes were important in the pathogenesis of E. faecalis infections.
    Matched MeSH terms: Drug Resistance, Microbial
  17. Al-Taiar A, Hammoud MS, Cuiqing L, Lee JK, Lui KM, Nakwan N, et al.
    Arch. Dis. Child. Fetal Neonatal Ed., 2013 May;98(3):F249-55.
    PMID: 22942104 DOI: 10.1136/archdischild-2012-301767
    Neonatal sepsis is a major cause of neonatal deaths in Asia but data remain scarce. We aimed to investigate the causative organisms and antibiotic resistance in neonatal care units in China, Malaysia, Hong Kong and Thailand.
    Matched MeSH terms: Drug Resistance, Microbial
  18. Marzan M, Islam DZ, Lugova H, Krishnapillai A, Haque M, Islam S
    Infect Drug Resist, 2021;14:519-533.
    PMID: 33603416 DOI: 10.2147/IDR.S289964
    Background: Antibiotics are lifesaving drugs, and inappropriate uses lead to the resistance that renders them ineffective. This study aims to understand knowledge, attitude, and practice (KAP) concerning antibiotic use and resistance among university students in Bangladesh.

    Methods: A cross-sectional study was performed from January to April 2020 among students at Jahangirnagar University (JU), Bangladesh. Purposive sampling was conducted through an in-person interview using a structured questionnaire. Students from the faculties of biological sciences and non-biology background were included. The univariate ordinal regression technique was used to analyze the relationship between predictors and good knowledge about the antibiotics. A two-tailed p-value was calculated to determine statistical association.

    Results: Out of 205 study participants, 92 and 113 responders were from biological science faculty and non-biology disciplines, respectively. Less than half of the students (42.4%) showed a good knowledge level (scores higher than 80%). Biology-background students possess better knowledge than non-biology students [odds ratio (OR) = 4.44, 95% confidence level (CL) (2.56, 7.70), p < 0.001]. A better attitude was noticed among all students. The self-medication rate was quite low, and more than 90% of students were found to consume antibiotics according to the physician's prescription. Lack of treatment adherence was recorded, and students admitted to stop-taking antibiotics when symptoms disappeared (48.67% biology and 36.26% non-biology). Multivariate regression analysis was unable to detect any significant association between self-medication and gender, student category or the level of knowledge about antibiotics.

    Conclusion: Students of biological science background possessed better knowledge indicating the importance of appropriate curriculum imparted in knowledge buildup. Introducing a short course about the risk and development of antibiotic resistance will grow the students' awareness to avoid the resistance phenomenon.

    Matched MeSH terms: Drug Resistance, Microbial
  19. Tan HS, Ngeow YF, Jamal F
    Med J Malaysia, 1986 Mar;41(1):24-9.
    PMID: 3796343
    55% of a sample of patients in a rural
    community, and 76% of a sample of patients and
    staff in the local district hospital were found to
    be nasal carriers for Staphylococcus aureus. The
    in vitro antibiotic susceptibility patterns of 46
    strains of S. aureus isolated in nasal carriers as
    well as of 43 strains in community-acquired skin
    infections were characterised. High levels of
    resistance were expressed to penicillin (73%),
    cephalexin (64%) and tetracycline (46%).
    Resistance to erythromycin (18%) was moderate.
    A few strains showed resistance to methicillin
    (5 isolates), vancomycin (4), [usidic acid (3),
    cotrimoxazole (1), and none to gentamicin.
    Penicillin can no longer be recommended for
    treating community-acquired S. aureus infections.
    Matched MeSH terms: Drug Resistance, Microbial
  20. Williams JD, Moosdeen F, Teoh-Chan CH, Lim VK, Jayanetra P
    Eur J Epidemiol, 1989 Jun;5(2):207-13.
    PMID: 2504618
    Antibiotic resistance in Gram-negative bacteria, particularly Salmonella and Shigella, requires surveillance worldwide. This study describes results of surveys in Hong Kong, Bangkok and Kuala Lumpur. All strains were isolated in hospitals which have large community catchment areas in addition to specialised hospital units. The prevalence of resistant strains was high in all areas. Gram-negative bacteria such as Enterobacter associated with hospital infections were resistant to penicillins and cephalosporins, with gentamicin resistance ranging from about 20% in Kuala Lumpur and Hong Kong, to 35% in Bangkok. Ninety-seven percent of Shigella isolated in Thailand were resistant to ampicillin. About 10% of Salmonella were resistant to chloramphenicol in all three centres.
    Matched MeSH terms: Drug Resistance, Microbial
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