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F Belal, F Ibrahim, Z A Sheribah, H Alaa
In this paper, novel univariate and multivariate regression methods along with model-updating technique were developed and validated for the simultaneous determination of quaternary mixture of imatinib (IMB), gemifloxacin (GMI), nalbuphine (NLP) and naproxen (NAP). The univariate method is extended derivative ratio (EDR) which depends on measuring every drug in the quaternary mixture by using a ternary mixture of the other three drugs as divisor. Peak amplitudes were measured at 294nm, 250nm, 283nm and 239nm within linear concentration ranges of 4...
February 21, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
T O Ajiboye
The influence of 2-(2-nitrovinyl) furan on the antibiotic activities of selected bacteriostatic and bactericidal antibiotics was investigated. Minimum inhibitory concentration and fractional inhibitory concentration index were determined to evaluate the interaction between 2-(2-nitrovinyl) furan and the antibiotics. 2-(2-nitrovinyl) furan exhibited additive interactions with chloramphenicol, erythromycin, lincomycin and gemifloxacin. However, synergistic interaction was observed with amoxicillin, ampicillin and ciprofloxacin...
January 8, 2018: Microbial Pathogenesis
Zumrut Dogan, Aymelek Cetin, Ebru Elibol, Nigar Vardi, Yusuf Turkoz
PURPOSE: Teratogens cause birth defects and malformations while human development is being completed. In pregnancy, urinary tract infection (UTI) is a common health problem caused by bacteria. The fluoroquinolones such as ciprofloxacin, levofloxacin, moxifloxacin, and gemifloxacin can treat various types of bacterial infections successfully. The aim of this study is to determine whether the use of ciprofloxacin during pregnancy causes oxidative stress on brain tissues of the fetus, and whether quercetin contributes to prevent this damage if stress has already occurred...
January 10, 2018: Journal of Maternal-fetal & Neonatal Medicine
Dae-Wi Kim, Cung Nawl Thawng, Jung-Hye Choi, Kihyun Lee, Chang-Jun Cha
The environmental resistome has been recognized as the origin and reservoir of antibiotic resistance genes and considered to be dynamic and ever expanding. In this study, a targeted gene sequencing approach revealed that the polymorphic diversity of the aminoglycoside-inactivating enzyme AAC(6')-Ib was ecological niche-specific. AAC(6')-Ib-cr, previously known as a clinical variant, was prevalent in various soils and the intestines of chickens and humans, suggesting that this variant might not have arisen from adaptive mutations in the clinic but instead originated from the environment...
October 13, 2017: ISME Journal
Seyed Javad Khoramrouz, Mostafa Erfani, Mitra Athari Allaf
Nuclear medicine imaging has been used to localize infection sites, and efforts have been continued to develop modified infection specific radiopharmaceuticals. In this study gemifloxacin as a broad-spectrum quinolone has been labeled with [(99m)Tc (CO)3 (H2O)3](+) core in order to evaluate its feasibility as an infection imaging agent for in-vivo use. The stability of radioconjugate was checked in human serum at 37 °C and biodistribution was studied in mice. Labeling yield of > 95% was obtained corresponding to a specific activity of 0...
2017: Iranian Journal of Pharmaceutical Research: IJPR
Md Shamshir Alam, Krishna Kolappa Pillai, Syed Aliul Hasan Abdi, Prem Kapur, Paru Kutty Pillai, Kandasamy Nagarajan
Background/Aims: Adverse drug reaction (ADR) is an appreciably harmful or unpleasant reaction, resulting from an intervention related to the use of a medicinal product. The present study was conducted in order to monitor the frequency and severity of ADR during antimicrobial therapy of septicemia. Methods: A prospective, observational, and noncomparative study was conducted over a period of 6 months on patients of septicemia admitted at a university hospital. Naranjo algorithm scale was used for causality assessment...
September 6, 2017: Korean Journal of Internal Medicine
Fawzia A Ibrahim, Medhat A Al-Ghobashy, Mohamed K Abd El-Rahman, Ibrahim F Abo-Elmagd
Gemifloxacin (GEM) is a broad-spectrum quinolone antibiotic. The presence of GEM residuals in industrial and hospital wastewater has been associated with genotoxicity and antibiotic resistance. In this contribution, the photodegradation of GEM using titanium dioxide nanoparticles (TiO2NPs)/H2O2 as a catalyst was optimized to eliminate residual drug and its photodegradates with antibacterial activity. A half-factorial design was implemented, investigating the effects of pH, initial concentration, H2O2 concentration, TiO2NP loading, and irradiation time...
October 2017: Environmental Science and Pollution Research International
D W Sim, J E Yu, J Jeong, Y-I Koh
WHAT IS KNOWN AND OBJECTIVE: Fluoroquinolone-induced immune-mediated thrombocytopenia is uncommon, and no reports of cross-reactivity among fluoroquinolones exist. Here, we describe a case of ciprofloxacin-induced immune thrombocytopenia with no cross-reactivity with gemifloxacin. CASE DESCRIPTION: A 77-year-old woman showed profound thrombocytopenia immediately after two ciprofloxacin injections for pneumonia. Platelet counts recovered rapidly after ciprofloxacin discontinuation...
August 8, 2017: Journal of Clinical Pharmacy and Therapeutics
Fariborz Mansour-Ghanaei, Zahra Pedarpour, Afshin Shafaghi, Farahnaz Joukar
BACKGROUND Helicobacter pylori (H. pylori) infection is a major casual factor in any peptic diseases. Clarithromycin as one of the drugs recommended for the infection eradication regimen has shown different levels of resistance. The present study is comparing the effectiveness of clarithromycin- and gemifloxacin - based quadruple regimens in H. pylori eradication. METHODS This was a prospective double blind randomized clinical trial on patients with clear indication of H. pylori eradication. The patients were randomly divided into two groups: "BPAC group" treated with bismuth subcitrate (240 mg), pantoprazole (20 mg), amoxicillin (1 gr), and clarithromycin (500 mg), all twice daily, and the "BPAG group" treated with bismuth subcitrate, pantoprazole, and amoxicillin with same doses as "BPAC group" and gemifloxacin (320 mg daily) all for 10 days...
April 2017: Middle East Journal of Digestive Diseases
Semra Demir, Asli Gelincik, Nilgun Akdeniz, Esin Aktas-Cetin, Muge Olgac, Derya Unal, Belkis Ertek, Raif Coskun, Bahattin Colakoğlu, Gunnur Deniz, Suna Buyukozturk
PURPOSE: Reports evaluating diagnosis and cross reactivity of quinolone hypersensitivity have revealed contradictory results. Furthermore, there are no reports investigating the cross-reactivity between gemifloxacin (GFX) and the others. We aimed to detect the usefulness of diagnostic tests of hypersensitivity reactions to quinolones and to evaluate the cross reactivity between different quinolones including the latest quinolone GFX. METHODS: We studied 54 patients (mean age 42...
July 2017: Allergy, Asthma & Immunology Research
Jinghua Wang, Haiyang Xu, Dunwei Wang, Mingxian Li
A large number of population in both developing and developed countries are affected by bronchitis, among all the factors, bacterial infection was considered as a critical cause of acute exacerbations of chronic bronchitis. Although several anti-bacterial agents were proved to have the effect of alleviating bronchitis, their relative efficacies and potential side effects remained not clear. We are keen to compare the pathogen eradication rate and safety of anti-bacterial agents for bronchitis. Relevant studies were searched in multiple sources and data were extracted from eligible studies...
February 23, 2017: Journal of Cellular Biochemistry
Hee-Soo Park, Sang-Hun Oh, Hye-Shin Kim, Dong-Rack Choi, Jin-Hwan Kwak
Zabofloxacin is a novel fluoroquinolone agent that has potent activity against gram-positive pathogens. In this study, we confirmed that zabofloxacin showed the most potent in vitro and in vivo activities against drug-resistant Streptococcus pneumoniae. Among the fluoroquinolone compounds, zabofloxacin showed the most potent in vitro activity against clinical isolates of penicillin-sensitive S. pneumoniae (minimum inhibitory concentration, MIC90: 0.03 mg/L) and penicillin-resistant S. pneumoniae (MIC90: 0.03 mg/L)...
November 17, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Muhammad Ashfaq, Khujasta Nawaz Khan, Muhammad Saif Ur Rehman, Ghulam Mustafa, Muhammad Faizan Nazar, Qian Sun, Javed Iqbal, Sikandar I Mulla, Chang-Ping Yu
The pharmaceutical industry of Pakistan is growing with an annual growth rate of 10%. Besides this growth, this industry is not complying with environmental standards, and discharging its effluent into domestic wastewater network. Only limited information is available about the occurrence of pharmaceutical compounds (PCs) in the environmental matrices of Pakistan that has motivated us to aim at the occurrence and ecological risk assessment of 11 PCs of different therapeutic classes in the wastewater of pharmaceutical industry and in its receiving environmental matrices such as sludge, solid waste and soil samples near the pharmaceutical formulation units along Shiekhupura road, Lahore, Pakistan...
February 2017: Ecotoxicology and Environmental Safety
Muhammad Umair, Aqeel Javeed, Aamir Ghafoor, Muhammad Ashraf
OBJECTIVES: Gemifloxacin is a broad spectrum antibiotic and has shown excellent coverage against a wide variety of microorganisms. In this study, an attempt was made to evaluate the immunomodulatory potential of gemifloxacin in male swiss albino mice in vivo. MATERIALS AND METHODS: Three doses of gemifloxacin 25 mg/kg, 50 mg/kg and 75 mg/kg were used intraperitoneally (IP) for the evaluation of immune responses in mice. Delayed type hypersensitivity (DTH), heamagglutination assay, jerne hemolytic plaque formation assay and cyclophosphamide induced neutropenia assay were performed to evaluate the effect of gemifloxacin on immune responses...
September 2016: Iranian Journal of Basic Medical Sciences
Laleh Mahmoudi, Shohreh Farshad, Mehrdad Seddigh, Paria Mahmoudi, Fardad Ejtehadi, Ramin Niknam
BACKGROUND: Helicobacter pylori (H pylori) is a common gastric pathogen which is associated with chronic gastritis, peptic ulcer, and gastric cancer. It has worldwide distribution with higher incidence in developing countries. Gemifloxacin is a fluoroquinolone antibiotic with documented in vitro activity against H pylori. Considering that there is no clinical data to verify gemifloxacin efficacy in H pylori eradication, this pilot clinical trial was designed. METHODS: This prospective pilot study was performed during February 2014 to February 2015...
October 2016: Medicine (Baltimore)
Meltem Erdem, Ceyhun Küçük, Ender Büyükgüzel, Kemal Büyükgüzel
Gemifloxacin mesylate (GEM) is a synthetic, fourth-generation fluoroquinolone antibacterial antibiotic that has a broad spectrum of activity against bacteria. GEM inhibits DNA synthesis by inhibiting DNA gyrase and topoisomerase IV activities. Recent research into insect nutrition and mass-rearing programs, in which antibiotics are incorporated into the culture media to maintain diet quality, raised a question of whether clinical antibiotics influence the health or biological performance of the insects that ingest these compounds...
December 2016: Archives of Insect Biochemistry and Physiology
Andreana Marino, Anna Rita Blanco, Giovanna Ginestra, Antonia Nostro, Giuseppe Bisignano
In recent years, the emergence of methicillin-resistant Staphylococcus aureus (MRSA) strains has been observed in ocular infections. Resistance of MRSA to second- and third-generation fluoroquinolones has increased interest in the fourth-generation fluoroquinolones. In this study, the antibacterial activity of gemifloxacin against MRSA ocular isolates in vitro and in a modified ex vivo rabbit keratitis model was investigated. In vitro susceptibility test results indicated that the minimum inhibitory concentrations (MICs) of gemifloxacin were lower than the MICs of other fluoroquinolones, including moxifloxacin (MIC50 range, 0...
October 2016: International Journal of Antimicrobial Agents
Muhammad Ashfaq, Khujasta Nawaz Khan, Sana Rasool, Ghulam Mustafa, Muhammad Saif-Ur-Rehman, Muhammad Faizan Nazar, Qian Sun, Chang-Ping Yu
In the present study, wastewater and sludge samples of two major hospitals of Lahore, Pakistan were analyzed by developing an HPLC-UV method for the possible occurrence of five frequently used fluoroquinolone antibiotics i.e. ofloxacin, ciprofloxacin, sparfloxacin, moxifloxacin and gemifloxacin. The highest detected concentration was for moxifloxacin in both wastewater (224 μg/L) and sludge samples (219 μg/kg. The highest concentration of ofloxacin, ciprofloxacin, sparfloxacin and gemifloxacin were found to be 66, 18, 58 and 0...
March 2016: Environmental Toxicology and Pharmacology
Rasha M Arabyat, Dennis W Raisch, June M McKoy, Charles L Bennett
OBJECTIVE: To review and summarize reports of tendon rupture associated with each fluoroquinolone (FQ) currently marketed in the United States (US), as reported to the FDA's Adverse Event Reporting System (FAERS). METHODS: FAERS data were reviewed for reports of tendon rupture associated with each FQ from their respective approval date through September 2012. Disproportional reporting signal detection was estimated using empirical Bayes geometric mean (EBGM) with 95% confidence intervals (CI)...
2015: Expert Opinion on Drug Safety
Clésio Soldateli Paim, Fernanda Führ, Magda Targa Martins, Simone Gnoatto, Lisiane Bajerski, Cássia Virginia Garcia, Martin Steppe, Elfrides Eva Scherman Schapoval
Gemifloxacin mesylate (GFM), chemically (R,S)-7-[(4Z)-3-(aminomethyl)-4-(methoxyimino)-1-pyrrolidinyl]-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid methanesulfonate, is a synthetic broad-spectrum antibacterial agent. Although many papers have been published in the literature describing the stability of fluorquinolones, little is known about the degradation products of GFM. Forced degradation studies of GFM were performed using radiation (UV-A), acid (1 mol L(-1) HCl) and alkaline conditions (0...
March 2016: Biomedical Chromatography: BMC
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