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Journal of Chemotherapy

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https://www.readbyqxmd.com/read/27905262/should-the-patients-colonized-with-extended-spectrum-beta-lactamase-producing-gram-negative-bacilli-e-gnb-coming-to-hospital-from-the-community-with-pneumonia-get-anti-e-gnb-active-empirical-treatment
#1
Lara Peterlin, Mateja Žagar, Tatjana Lejko Zupanc, Marija Paladin, Bojana Beović
Extended-spectrum beta-lactamases are responsible for resistance of Gram-negative bacilli to several beta-lactam antibiotics, including those prescribed for treatment pneumonia. To evaluate the importance of colonization with E-GNB for the choice of empirical treatment we performed a retrospective case-control study including 156 patients, hospitalized for treatment of pneumonia from 2009 through 2013. Empirical treatment success and in-hospital survival were significantly lower in patients colonized with E-GNB compared to non-colonized (p = 0...
December 1, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27866454/the-role-of-thymidylate-synthase-in-non-small-cell-lung-cancer-treated-with-pemetrexed-continuation-maintenance-therapy
#2
Min Yang, Wei-Fei Fan, Xiao-Lin Pu, Li-Juan Meng, Jun Wang
Pemetrexed continuation maintenance therapy has been proven to be beneficial for patients with advanced non-squamous non-small cell lung cancer (NSCLC). However, the eligibility criteria for maintenance treatment are too simple. This study sought to evaluate thymidylate synthase (TS) as a predicting biomarker for pemetrexed continuation maintenance treatment in NSCLC. Specimens were collected from 87 patients treated with pemetrexed continuation maintenance therapy before and after four-cycle induction chemotherapy...
November 21, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27774857/in-vitro-activity-of-ceftriaxone-combined-with-newer-agents-against-mrsa
#3
Gulseren Aktas
In this study, in vitro synergism in combinations of agents as ceftriaxone/dalbavancin, ceftriaxone/linezolid and ceftriaxone/daptomycin against MRSA strains were investigated. Thirty clinical MRSA strains were tested. The minimum inhibitory concentrations of all antibiotics were determined using reference broth microdilution method. In-vitro activities of antibiotics combined against the strains were tested using two-dimensional checkerboard microdilution method. Results were interpreted as follows: synergy = FICI ≤0...
October 24, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27748167/pharmacokinetically-based-prediction-of-the-effects-of-antibiotic-combinations-on-resistant-staphylococcus-aureus-mutants-in-vitro-model-studies-with-linezolid-and-rifampicin
#4
Alexander A Firsov, Maria V Golikova, Elena N Strukova, Yury A Portnoy, Svetlana A Dovzhenko, Mikhail B Kobrin, Stephen H Zinner
To explore if combinations of linezolid (L) with rifampicin (R) are able to restrict Staphylococcus aureus resistance, the enrichment of L- and R-resistant mutants was studied in an in vitro dynamic model. L- and R-resistant mutants were enriched in all single drug treatments. In contrast, L-resistant mutants were not enriched and R-resistant mutants were similar to baseline amounts with only minimal regrowth at the end of the combination treatments. These effects appear to be explained by lowering the mutant prevention concentration (MPC) for L+R combinations (MPCL+R) compared to the MPCs of L and R alone (MPCL and MPCR) and thereby the longer times above MPCL+R (73-100% of the dosing interval for L and 42-58% for R) compared to the times above MPCL (0-44%) and MPCR (0%)...
October 17, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27741937/alopecia-universalis-as-a-side-effect-of-pegylated-interferon-%C3%AE-ribavirin-combination-therapy-for-hepatitis-c-a-rare-case-report
#5
Poonam Verma, Surabhi Dayal, V K Jain, Ashish Amrani
Pegylated interferon α and ribavirin therapy is associated with increased incidence of various systemic and cutaneous side effects. Among the side effects of this therapy, alopecia universalis is a rarely reported side effect which causes significant cosmetic concern to the patient. We report a rare case of alopecia universalis which developed eight weeks after discontinuation of this antiviral combination therapy. This gains importance because it is essential to sensitize the treating gastroenterologist and the dermatologist regarding this rare side effect...
October 14, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27623477/corrigendum
#6
(no author information available yet)
No abstract text is available yet for this article.
September 13, 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27545330/an-outline-of-main-factors-of-drug-resistance-influencing-cancer-therapy
#7
Natalia Frączek, Iwona Bronisz, Magdalena Pietryka, Dorota Kępińska, Patrycja Strzała, Kamila Mielnicka, Agnieszka Korga, Jaroslaw Dudka
Drug resistance in cancer therapy is a multifactorial phenomenon that determines remission or progression. It is known that resistance to used anticancer drugs may be the consequence of drug transport to the cell or intracellular distribution. It may also be the result of its molecular target structural change, apoptosis inhibition or increase in some enzymes activity, e.g. pentose phosphate pathway enzymes. Intrinsic (pre-existed) drug resistance is related to the phenotype of cancer as well as normal cells...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27535294/trabectedin-for-sarcomas-in-daily-clinical-practice-analysis-of-45-patients-treated-in-a-french-institution
#8
Johanne Daupin, Pascal Paubel, Julie Fillon, Isabelle Debrix, Daniele G Soares, Jean-Pierre Lotz
INTRODUCTION: The active clinical research programme of trabectedin continues to improve knowledge on the therapeutic activity and toxicity of the drug in the treatment of soft tissue sarcomas (STS). In contrast, limited number of data is available on its use outside of clinical trials. PATIENTS AND METHODS: We retrospectively analysed efficacy and safety of trabectedin when given in daily practice to patients with advanced/recurrent STS. Outcomes were compared with previously published works including clinical and retrospective studies...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27315156/rituximab-plus-reduced-dose-cyclophosphamide-doxorubicin-vincristine-and-prednisone-rd-r-chop-chemotherapy-is-feasible-for-very-elderly-patients-%C3%A2-80-years-with-b-cell-lymphoma-analysis-of-treatment-outcome
#9
Zhan Shi, Xi Tang, Jingwen Wang, Qianwen Shen, Xi Chen, Jiayan Chen, Jie Zhuang
OBJECTIVE: The aim of this trial was to evaluate the treatment outcome of reduced-dose (RD)R-CHOP treatment in very elderly patients with B-cell lymphoma. METHODS: This trial comprised 40 patients, aged ≥80 years, who were diagnosed with B-cell lymphoma and recruited at a single centre from 2007 to 2013. They received four to eight cycles of reduced-dose R-CHOP (rituximab 375 mg/m(2) Day 0, cyclophosphamide 400 mg/m(2) Day 1, epirubicin 35 mg/m(2) Day 1, vincristine 1 mg Day 1 and prednisone 50 mg/m(2) Days 1-5)...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27077932/the-resistance-and-transmission-mechanism-of-acinetobacter-baumannii-isolates-in-a-tertiary-care-hospital-china
#10
Fengjun Sun, Qianyi Ou, Qian Wang, Wei Feng, Xuewen Qiu, Jianhong Chen, Yao Liu, Peiyuan Xia
The aim of this study was to analyse the resistance and epidemiological data of 117 Acinetobacter baumannii isolates from Southwest Hospital, Chongqing, China. Except for polymyxin B, tigecycline, minocycline, cefoperazone/sulbactam, amikacin and levofloxacin, the resistance rates of other antimicrobial agents were above 90%. All the clinical isolates had the blaOXA-51 gene and 114 isolates had the blaOXA-23 gene. Forty-nine isolates were found to contain the blaIMP-4 gene. PFGE data showed that 117 isolates were divided into 25 groups...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27077930/accumulation-of-multiple-mutations-in-linezolid-resistant-staphylococcus-epidermidis-causing-bloodstream-infections-in-silico-analysis-of-l3-amino-acid-substitutions-that-might-confer-high-level-linezolid-resistance
#11
Alexandros Ikonomidis, Anastasia Grapsa, Charikleia Pavlioglou, Antonia Demiri, Alexandra Batarli, Maria Panopoulou
Fifty-six Staphylococcus epidermidis clinical isolates, showing high-level linezolid resistance and causing bacteremia in critically ill patients, were studied. All isolates belonged to ST22 clone and carried the T2504A and C2534T mutations in gene coding for 23SrRNA as well as the C189A, G208A, C209T and G384C missense mutations in L3 protein which resulted in Asp159Tyr, Gly152Asp and Leu94Val substitutions. Other silent mutations were also detected in genes coding for ribosomal proteins L3 and L22. In silico analysis of missense mutations showed that although L3 protein retained the sequence of secondary motifs, the tertiary structure was influenced...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27077928/molecular-characterization-of-ambler-class-a-to-d-%C3%AE-lactamases-isaba1-and-integrons-reveals-multidrug-resistant-acinetobacter-spp-isolates-in-northeastern-china
#12
Xiaoyu Sun, Bin Liu, Yan Chen, Honglan Huang, Guoqing Wang, Fan Li, Zhaohui Ni
The prevalence of various Ambler class A to D β-lactamases, ISAba1, and class 1 and 2 integrons as well as the clonal relatedness in 105 Acinetobacter spp. isolates found in northeastern China was investigated. All 105 Acinetobacter spp. isolates were determined to be multidrug resistant (MDR), and the resistance rates to carbapenem agents were approximately 50%. PER, IMP, AmpC, and OXA-23 were found to be dominant β-lactamases belonging to different classes, respectively. This is the first report of the coexistence of blaPER, blaIMP, blaAmpC, and blaOXA-23-like genes in Acinetobacter spp...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/26900802/lopinavir-ritonavir-enhanced-the-antimalarial-activity-of-amodiaquine-and-artesunate-in-a-mouse-model-of-plasmodium-berghei
#13
Oyindamola Olajumoke Abiodun, Nekabari Gbimadee, Grace Olushola Gbotosho
Treatment of malaria and HIV in co-infected patients remains a challenge due to the limited information on interaction between drugs used for the treatment of the two infections. Thus, this study evaluated the interaction between lopinavir/ritonavir (LR) and artesunate (AS), amodiaquine (AQ) or a fixed dose of AS/AQ in a mouse model of chloroquine-resistant Plasmodium berghei. Combination of LR with graded doses of AS or AQ resulted in a significant reduced ED50. In addition, parasites cleared completely from day 3 till day 21 post-infection in animals infected, treated with AS/AQ alone or AS/AQ with LR and all the animals survived till day 21 post-infection...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/26431268/role-of-linezolid-therapeutic-drug-monitoring-in-the-treatment-of-mrsa-tracheo-pulmonary-infection-in-a-10-month-old-infant
#14
Elio Castagnola, Giuliana Cangemi, Roberto Bandettini, Michele Torre, Lucio Zannini, Pietro Tuo, Andrea Moscatelli
The paper reports on the use of therapeutic drug monitoring for linezolid in the decision-making process to continue or not its administration in an infant. Linezolid is effective against methicillin-resistant Staphylococcus aureus but is off-label in pediatrics. The use of therapeutic drug monitoring, as in our case, allows an informed decision on administration of the drug (in this case on withdrawal) increasing patients safety.
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/26191982/prophylactic-efficacy-of-cephamycin-plus-fluoroquinolones-in-high-risk-patients-on-inhibiting-infectious-complications-after-transrectal-prostate-biopsy
#15
Katsumi Shigemura, Kazushi Tanaka, Fukashi Yamamichi, Soichi Arakawa, Masato Fujisawa
No abstract text is available yet for this article.
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/26042586/hypersensitivity-reaction-caused-by-folinic-acid-administration-a-case-report-and-literature-review
#16
Marta Florit-Sureda, David Conde-Estévez, Joana Vidal, Clara Montagut
5-Fluorouracil (5-FU) is combined with folinic acid (FA) for enhancing its cytotoxic effects in the colon cancer chemotherapy treatment. Folinic acid has rarely been involved in hypersensitivity reactions. Here, we report a case of FA hypersensitivity in an adult patient initially attributed to oxaliplatin administered concurrently. A 56-year-old male patient diagnosed with colon cancer received twelve cycles of FOLFOX4, one cycle of FOLFIRI plus cetuximab and nine cycles of FOLFOX6 uneventful. At the tenth cycle of FOLFOX6 chemotherapy, after 15 minutes of starting the infusion of oxaliplatin and FA, the patient reported flushing, pruritus and abdominal pain and erythema and oedema developed over the face and thorax...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/25979273/high-prevalence-of-cross-resistance-to-fluoroquinolone-and-cotrimoxazole-in-tetracycline-resistant-escherichia-coli-human-clinical-isolates
#17
Eric Batard, Mathilde Lefebvre, Guillaume Ghislain Aubin, Nathalie Caroff, Stéphane Corvec
No abstract text is available yet for this article.
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/25968356/environmental-staphylococcus-aureus-contamination-in-a-tunisian-hospital
#18
Haythem Gharsa, Raoudha Dziri, Naouel Klibi, Sarra Chairat, Carmen Lozano, Carmen Torres, Ridha Bellaaj, Karim Ben Slama
One hundred hospital environment samples were obtained in 2012 in a Tunisian hospital and tested for Staphylococcus aureus recovery. Antimicrobial resistance profile and virulence gene content were determined. Multilocus-sequence-typing (MLST), spa-typing, agr-typing and SmaI-pulsed-field gel electrophoresis (PFGE) were performed. Two methicillin-resistant S. aureus (MRSA) isolates typed as: ST247-t052-SCCmecI-agrI were recovered from the intensive care unit (ICU). Ten samples contained methicillin-susceptible S...
December 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27447444/non-invasive-endotracheal-delivery-of-paclitaxel-loaded-alginate-microparticles
#19
Shohreh Alipour, Hashem Montaseri, Azadeh Khalili, Mohsen Tafaghodi
Aerosolized chemotherapeutics leads to higher, localized and continuous concentrations of active agents in lung tissue with lower side effects for other organs. The present study was performed on jugular vein cannulated rats which endothracheally received 4 mg/kg of free paclitaxel powder (Free-PTX), paclitaxel-loaded alginate microparticles (PTX-ALG-MPs) and i.v. paclitaxel (Anzatax(®)). Pharmacokinetic parameters for Free-PTX and PTX-ALG-MPs contain higher AUC, mean residence time (MRT),half-life and bioavailability, with lower elimination constant (ke)...
October 2016: Journal of Chemotherapy
https://www.readbyqxmd.com/read/27376403/complete-response-in-metastatic-renal-cell-carcinoma-after-radiotherapy-and-everolimus-a-clinical-case-and-review-of-the-literature
#20
Beatrice Detti, Giulio Francolini, Carlotta Becherini, Emanuela Olmetto, Irene Giacomelli, Daniele Scartoni, Daniela Greto, Valentina Baldazzi, Gabriele Simontacchi, Icro Meattini, Lorenzo Livi
We report the case of a man affected by renal cell carcinoma with vertebral metastases, who presented a radiological complete response after systemic treatment with everolimus.
October 2016: Journal of Chemotherapy
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