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https://www.readbyqxmd.com/read/28210887/drug-resistant-neisseria-gonorrhoeae-latest-developments
#1
REVIEW
B Suay-García, M T Pérez-Gracia
Gonorrhea is the second most frequently reported notifiable disease in the United States and is becoming increasingly common in Europe. The purpose of this review was to assess the current state of drug-resistant Neisseria gonorrhoeae in order to evaluate future prospects for its treatment. An exhaustive literature search was conducted to include the latest research regarding drug resistance and treatment guidelines for gonorrhea. Gonococci have acquired all known resistance mechanisms to all antimicrobials used for treatment...
February 16, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28210461/the-epidemiology-and-antimicrobial-resistance-of-cholera-cases-in-iran-during-2013
#2
Hossein Masoumi-Asl, Mohammad Mehdi Gouya, Mohammad Rahbar, Roghieh Sabourian
BACKGROUND AND OBJECTIVES: Cholera is an endemic diarrheal disease in Iran, caused by Vibrio Cholerae. The epidemiology, transmission route, environmental determinants and antimicrobial resistant pattern of cholera have been changed during recent years. In this study the epidemiology and antimicrobial resistance of cholera in Iran during 2013 outbreak was investigated. MATERIALS AND METHODS: A retrospective, cross-sectional study was carried out using cholera national surveillance system collected data in 2013...
August 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28178112/antimicrobial-susceptibility-of-neisseria-gonorrhoeae-in-japan-from-2000-to-2015
#3
Mitsuru Yasuda, Kyoko Hatazaki, Shin Ito, Masataka Kitanohara, Mutsumasa Yoh, Munekado Kojima, Harunori Narita, Akira Kido, Kazutoyo Miyata, Takashi Deguch
BACKGROUND: Gonococcal infections are difficult to treat because of their multidrug antimicrobial resistance. The outbreak of antimicrobial-resistant Neisseria gonorrhoeae has begun in Asia and particularly in Japan. Therefore, it is very important that we understand the trend of antimicrobial resistance of N. gonorrhoeae in Asia including Japan. Our surveillance of the antimicrobial susceptibility of N. gonorrhoeae began in 2000 under the guidance of the Department of Urology, Gifu University...
March 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28167857/high-frequency-of-vancomycin-resistant-enterococcus-faecalis-in-children-an-alarming-concern
#4
F Sabouni, Z Movahedi, S Mahmoudi, B Pourakbari, S Keshavarz Valian, S Mamishi
INTRODUCTION: Enterococcus spp. is considered as important etiological agents of nosocomial infections. However, a little is known about the epidemiology of vancomycin resistant Enterococcus faecalis (VREF). The aim of this study was to investigate the frequency of VREF and detecting of two prevalent resistance genes (vanA, vanB) at Children Medical Center Hospital, an Iranian referral pediatric Hospital. MATERIALS AND METHODS: During January 2013 to December 2013, 180 E...
December 2016: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28145684/alanine-501-mutations-in-penicillin-binding-protein-2-from-neisseria-gonorrhoeae-structure-mechanism-and-effects-on-cephalosporin-resistance-and-biological-fitness
#5
Joshua Tomberg, Alena Fedarovich, Leah R Vincent, Ann E Jerse, Magnus Unemo, Christopher Davies, Robert A Nicholas
Resistance of Neisseria gonorrhoeae to expanded-spectrum cephalosporins such as ceftriaxone and cefixime has increased markedly in the past decade. The primary cephalosporin resistance determinant is a mutated penA gene, which encodes the essential peptidoglycan transpeptidase, penicillin-binding protein 2 (PBP2). Decreased susceptibility and resistance can be conferred by mosaic penA alleles containing upward of 60 amino acid changes relative to wild-type PBP2, or by nonmosaic alleles with relatively few mutations, the most important of which occurs at Ala501 located near the active site of PBP2...
February 16, 2017: Biochemistry
https://www.readbyqxmd.com/read/28131557/-profile-of-bacterial-resistance-in-pediatric-urinary-tract-infections-in-2014
#6
A Flammang, R Morello, M Vergnaud, J Brouard, P Eckart
In pediatric units, bacteria-producing extended-spectrum-betalactamase (ESBL) have an increasing prevalence among bacteria causing febrile urinary tract infections (UTIs). The purpose of this study was to evaluate the epidemiology of bacteria resistance patterns observed in UTIs, in order to assess the current antibiotic treatment protocols. This study is based upon a single-center retrospective chart review of the cytobacteriological urine cultures performed in UTIs between 1 January and 31 December 2014, in the medical pediatric unit of the Caen University Hospital...
January 25, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28130505/a-national-evaluation-using-standardised-patient-actors-to-assess-sti-services-in-public-sector-clinical-sentinel-surveillance-facilities-in-south-africa
#7
Pamela K Kohler, Eva Marumo, Suzanne L Jed, Gladys Mema, Sean Galagan, Kenneth Tapia, Erushka Pillay, Julia DeKadt, Evasen Naidoo, Julia C Dombrowski, King K Holmes
OBJECTIVES: Quality concerns in STI service delivery and missed opportunities for integration with HIV testing and prevention services in South Africa have been well documented. This national evaluation aimed to evaluate current utilisation and adherence to national STI guidelines, including partner notification and integration with HIV services, for diagnosis and management of STIs. METHODS: Facility surveys assessed infrastructure and resource availability, and standardised patient (SP) assessments evaluated quality of STI care in 50 public clinics in nine provinces in South Africa...
January 27, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28078632/fluorescent-carbon-dot-as-nanosensor-for-sensitive-and-selective-detection-of-cefixime-based-on-inner-filter-effect
#8
Farhad Akhgari, Naser Samadi, Khalil Farhadi
Here a simple and sensitive fluorescent assay for detecting Cefixime based on inner filter effect (IFE) has been proven, which is conceptually different from the previously reported CEF fluorescent assays. In this sensing platform, fluorescent carbon dots (CDs) were prepared by one-pot synthesis and was directly used as fluorophore in IFE. The method is based on the complexation reaction between cefixime and palladium ion in the presence of acidic buffer solution (pH 4). The Pd(II)-CEFcomplex was capable of functioning as a powerful absorber in IFE to influence the excitation of fluorophore (CDs)...
January 11, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/27956766/enterohemorrhagic-escherichia-coli-o157-in-milk-and-dairy-products-from-libya-isolation-and-molecular-identification-by-partial-sequencing-of-16s-rdna
#9
Aboubaker M Garbaj, Enas M Awad, Salah M Azwai, Said K Abolghait, Hesham T Naas, Ashraf A Moawad, Fatim T Gammoudi, Ilaria Barbieri, Ibrahim M Eldaghayes
AIM: The aim of this work was to isolate and molecularly identify enterohemorrhagic Escherichia coli (EHEC) O157 in milk and dairy products in Libya, in addition; to clear the accuracy of cultural and biochemical identification as compared with molecular identification by partial sequencing of 16S rDNA for the existing isolates. MATERIALS AND METHODS: A total of 108 samples of raw milk (cow, she-camel, and goat) and locally made dairy products (fermented cow's milk, Maasora, Ricotta and ice cream) were collected from some regions (Janzour, Tripoli, Kremiya, Tajoura and Tobruk) in Libya...
November 2016: Veterinary World
https://www.readbyqxmd.com/read/27915986/molecular-analysis-of-pseudomonas-aeruginosa-metallo-beta-lactamase-a-first-report-of-an-iranian-referral-pediatric-hospital
#10
Shima Mahmoudi, Babak Pourakbari, Mansoure Hosseini, Amir Esmaeil Alyari, Mohammad Taghi Haghi Ashtiani, Setareh Mamishi
INTRODUCTION: Pseudomonas aerouginosa is an important opportunistic pathogen causes clinical infections among ill patients. Metallo- Beta- lactamases (MBLs) are important mechanisms of carbapenem (drug of choice) resistance among Pseudomonas aerouginosa isolates. The aim of this study was to determine B- lactamases genes (bla-genes) in P. aerouginosa isolates and to detect percentage of MBLs among P. aerouginosa isolates in different wards. MATERIAL AND METHODS: Clinical isolates of P...
December 2, 2016: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/27904747/comparing-the-disk-diffusion-and-agar-dilution-tests-for-neisseria-gonorrhoeae-antimicrobial-susceptibility-testing
#11
Hsi Liu, Thomas H Taylor, Kevin Pettus, Steve Johnson, John R Papp, David Trees
BACKGROUND: We assessed the validity of testing for antimicrobial susceptibility of clinical and mutant Neisseria gonorrhoeae (GC) isolates by disk diffusion in comparison to agar dilution, and Etest® (bioMerieux, France), respectively, for three third generation extended spectrum cephalosporins (ESC): ceftriaxone (CRO), cefixime (CFX), and cefpodoxime (CPD). METHODS: One hundred and five clinical isolates and ten laboratory-mutants were tested following Clinical Laboratory Standard Institute (CLSI) and manufacturer's standards for each of the three methods...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27898572/sexually-transmitted-infections-and-associated-risk-factors-among-street-based-and-residence-based-female-sex-workers-in-dhaka-bangladesh
#12
Rasheda Khanam, Masud Reza, Dilruba Ahmed, Mustafizur Rahman, M Shah Alam, Salima Sultana, Anadil Alam, Sharful I Khan, Kenneth H Mayer, Tasnim Azim
BACKGROUND: Female sex workers (FSWs) in Bangladesh remain at elevated risk of sexually transmitted infections (STIs) although the human immunodeficiency virus (HIV) prevalence among them is low. Recent information on the burden and etiological diagnosis of STIs among them has been lacking. This study examines prevalence and risk behaviors of selected STIs among FSWs in Dhaka in 2014. METHODS: Between August and October 2014, a cross-sectional study was conducted among street-based and residence-based FSWs receiving HIV prevention services at 24 drop in centers in Dhaka...
January 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27890419/in-vitro-activity-of-tigecycline-alone-and-antimicrobial-combinations-against-clinical-neisseria-gonorrhoeae-isolates
#13
Hyukmin Lee, Hyunsoo Kim, Young Hee Seo, Dongeun Yong, Seok Hoon Jeong, Kyungwon Lee, Younsop Chong
In this study, we determined the in vitro activity of various combinations of antimicrobial agents against 54 Neisseria gonorrhoeae isolates. The combined activity of ceftriaxone (CRO) and azithromycin (AZM), CRO and doxycycline (DOX), CRO and spectinomycin (SPT), cefixime (CFX) and AZM, CFX and DOX, and CFX and SPT was determined using a checkerboard method. The fractional inhibitory concentration index (FICI) values for all combinations were either additive or indifferent, and no synergistic or antagonistic effects were found...
February 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27887651/studies-on-the-therapeutic-effect-of-propolis-along-with-standard-antibacterial-drug-in-salmonella-enterica-serovar-typhimurium-infected-balb-c-mice
#14
Preeti Kalia, Neelima R Kumar, Kusum Harjai
BACKGROUND: Antibiotic resistance is an emerging public health problem. Centers for Disease Control and Prevention (CDC) has described antibiotic resistance as one of the world's most pressing health problems in 21(st) century. WHO rated antibiotic resistance as "one of the three greatest threats to human health". One important strategy employed to overcome this resistance is the use of combination of drugs. Many plants, natural extracts have been shown to exhibit synergistic response with standard drugs against microorganisms...
November 25, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27822958/double-tailed-acyl-glycoside-niosomal-nanocarrier-for-enhanced-oral-bioavailability-of-cefixime
#15
Muhammad Imran, Muhammad Raza Shah, Farhat Ullah, Shafi Ullah, Abdul Sadiq, Imdad Ali, Farid Ahmed, Waqas Nawaz
Novel, safe, efficient, and cost effective surfactants from renewable resources has attracted attention for enhancing solubility and bioavailability of hydrophobic dugs. We report the synthesis, characterization, and biocompatibility of a novel non-ionic acyl glycoside double-tailed surfactant for niosomal drug delivery system. Structure of the surfactant was confirmed by (1)H NMR and mass spectroscopy. Applications of surfactant in niosomal drug delivery were explored using Cefixime as model. The shape, size, and polydispersity index (PDI) of drug loaded vesicles were investigated with atomic force microscope (AFM) and dynamic light scattering (DLS)...
November 8, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27803470/synthesis-and-in-vitro-antibacterial-evaluation-of-novel-4-substituted-1-menthyl-1-2-3-triazoles
#16
Pooneh Khaligh, Peyman Salehi, Morteza Bararjanian, Atousa Aliahmadi, Hamid Reza Khavasi, Samad Nejad-Ebrahimi
Menthyl 1,4-disubstituted 1,2,3-triazole derivatives of hydroxybenzaldehydes, phenols and bile acids were synthesized via click chemistry. The novel synthesized compounds were evaluated for their in vitro antibacterial activity against Enterococcus faecium, and Staphylococcus aureus as Gram-positive bacteria. Some derivatives illustrated strong inhibitory effect against E. faecium with the minimum inhibitory concentration (MIC) values ranged from 1-3 µM, where cefixime as a positive control revealed MIC value of 35 µM...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27758727/differences-in-neisseria-gonorrhoeae-population-structure-and-antimicrobial-resistance-pattern-between-men-who-have-sex-with-men-and-heterosexuals
#17
J Serra-Pladevall, M J Barberá, A E Callarisa, R Bartolomé-Comas, A Andreu
This study compared the antimicrobial susceptibility and genotypes of strains of Neisseria gonorrhoeae isolated from men who have sex with men (MSM) and from heterosexuals. One hundred and eleven strains were characterized from 107 patients, comprising 57 strains from 54 heterosexuals and 54 strains from 53 MSM. Antimicrobial resistance rates were higher in strains from heterosexual patients, with resistance to cefixime (P = 0·0159) and ciprofloxacin (P = 0·002) being significantly higher. Typing by N. gonorrhoeae multi-antigen sequence typing (NG-MAST) showed that the most prevalent sequence types (ST) and genogroups (G) respectively were ST2400, ST2992, and ST5793, and G1407, G2992, and G2400...
January 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/27733802/occurrence-and-characteristics-of-extended-spectrum-%C3%AE-lactamases-producing-escherichia-coli-in-foods-of-animal-origin-and-human-clinical-samples-in-chhattisgarh-india
#18
Bhoomika, Sanjay Shakya, Anil Patyal, Nitin Eknath Gade
AIM: To assess the prevalence of antimicrobial resistance producing extended-spectrum β-lactamases (ESBL) (blaTEM, blaSHV, and blaCTX-M) genes in Escherichia coli isolated from chicken meat, chevon meat, raw milk, and human urine and stool samples collected from tribal districts of Chhattisgarh, viz., Jagdalpur, Dantewada, Kondagaon, and Kanker. MATERIALS AND METHODS: A total of 330 samples, comprising 98 chicken meat, 82 chevon meat, 90 raw milk, and 60 human urine and stool samples, were processed for isolation of E...
September 2016: Veterinary World
https://www.readbyqxmd.com/read/27668907/recurrent-complicated-urinary-tract-infection-due-to-rare-pathogen-sphingomonas-paucimobilis-contamination-or-real-deal
#19
Tulin Demir, Mumtaz Dadali
Sphingomonas paucimobilis is an aerobic, oxidase-positive, yellow-pigmented, non-fermentative, Gram-negative opportunistic pathogen that rarely causes infections in humans. It is commonly found in nosocomial environments and, despite its low clinical virulence, it can be responsible for several different infections especially among patients with underlying disease. Here we describe a clinical case of a 46-year-old male paraplegic patient with a history of neurogenic bladder due to insulin-dependent diabetes mellitus and renal failure who was admitted to the urology clinic of a university hospital in Kirsehir, Turkey, with the complaints of urinary tract infection (UTI) including fever, chills, dysuria, abdominal and back pain...
September 1, 2016: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/27646968/emerging-azithromycin-resistance-among-the-neisseria-gonorrhoeae-strains-isolated-in-hungary
#20
Alexandra Brunner, Eva Nemes-Nikodem, Csaba Jeney, Dora Szabo, Marta Marschalko, Sarolta Karpati, Eszter Ostorhazi
BACKGROUND: In the 1990s, azithromycin became the drug of choice for many infectious diseases but emerging resistance to the drug has only been reported in the last decade. In the last 5 years, the National Neisseria gonorrhoeae Reference Laboratory of Hungary (NNGRLH) has also observed an increased number of N. gonorrhoeae strains resistant to azithromycin. The aim of this study was to determine the most frequent sequence types (ST) of N. gonorrhoeae related to elevated levels of azithromycin MIC (minimal inhibitory concentration)...
September 20, 2016: Annals of Clinical Microbiology and Antimicrobials
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