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Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy

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https://www.readbyqxmd.com/read/27919693/performance-evaluation-of-xpert-mtb-rif-in-a-moderate-tuberculosis-incidence-compared-with-taqman-mtb-and-trcrapid-m-tb
#1
Kazunari Tsuyuguchi, Hideaki Nagai, Kenji Ogawa, Tomoshige Matsumoto, Kozo Morimoto, Akiko Takaki, Satoshi Mitarai
Xpert MTB/RIF is an automated nucleic acid amplification test (NAT) that can detect the presence of Mycobacterium tuberculosis complex (MTC) in clinical specimens as well as rifampicin (RIF) resistance resulting from rpoB mutation. Despite its high sensitivity and specificity for diagnosing tuberculosis (TB) with or without RIF resistance, the clinical performance of the test is variable. In this study, we evaluated the performance of Xpert MTB/RIF in a setting of moderate TB burden and high medical resources...
December 2, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27916471/the-efficacy-of-faropenem-for-patients-with-acute-cystitis-caused-by%C3%A2-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli
#2
Keiko Fujino, Yoshiki Hiyama, Teruhisa Uehara, Koji Ichihara, Jiro Hashimoto, Satoshi Fujii, Masaaki Shinagawa, Satoshi Takahashi, Naoya Masumori
The number of patients with acute cystitis caused by extended spectrum β lactamase (ESBL)-producing Escherichia coli (E. coli) is increasing gradually. Although it is reported that ESBL-producing E. coli are sensitive to faropenem (FRPM), there are few clinical studies on the efficiency of FRPM against acute cystitis caused by the bacteria. Therefore, we retrospectively reviewed the medical charts of patients with acute cystitis caused by ESBL-producing E. coli who were treated with the oral antimicrobial agent faropenem (FRPM) in our institution from June 2011 to May 2015...
December 2, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27894820/quantitative-detection-of-periodontopathic-bacteria-in-lower-respiratory-tract-specimens-by-real-time-pcr
#3
Kentaro Nagaoka, Katsunori Yanagihara, Yosuke Harada, Koichi Yamada, Yohei Migiyama, Yoshitomo Morinaga, Koichi Izumikawa, Shigeru Kohno
The presence of common periodontopathic bacteria, the Fusobacterium nucleatum-periodonticum-simiae group, Prevotella intermedia, and Porphyromonas gingivalis was determined from respiratory tract specimens of bacterial pneumonia by real-time PCR using universal and species-specific TaqMan probe/primer sets. 42 patients with infectious pneumonia and 45 patients without infectious pneumonia were retrospectively enrolled in clinical studies. Periodontopathic bacterial DNA was found in 57.1% cases of infectious pneumonia and 31...
November 26, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27894819/new-possible-biomarkers-for-diagnosis-of-infections-and-diagnostic-distinction-between-bacterial-and-viral-infections-in-children
#4
Takashi Yusa, Kazuhiro Tateda, Akira Ohara, Shuichi Miyazaki
Detailed information about patients with infections is required to ensure appropriate choice of treatment. Although white blood cell (WBC) counts, and C-reactive protein (CRP) levels are useful diagnostic indicators of infections, more rapid and easily assayed indicator(s) could improve diagnosis. Moreover, it is of pivotal importance to distinguish bacteria or viruses as causative pathogens. Overall, TLR2 and TLR4 expression levels in neutrophils derived from individuals (n = 118) with bacterial (n = 37) and viral (n = 34) infections were higher than those in control samples (n = 47)...
November 25, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27890417/mycobacterium-fortuitum-empyema-associated-with-an-indwelling-pleural-catheter-case-report-and-review-of-the-literature
#5
Paul Blair, Mahdi Moshgriz, Marc Siegel
Mycobacterium fortuitum is a rapidly growing mycobacterium (RGM) that is an uncommon cause of healthcare-associated infections. The most common infections caused by M. fortuitum include skin, soft tissue, and catheter-related infections. Although occasionally cultured from sputum samples, M. fortuitum is a rare cause of pulmonary disease. We report a case of M. fortuitum empyema associated with an infected pleural catheter and review M. fortuitum pulmonary infections.
November 24, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27889249/analysis-of-streptococcus-pneumoniae-and-haemophilus-influenzae-isolated-from-middle-ear-fluid-before-and-after-the-introduction-of-government-subsidies-for-pneumococcal-and-h-%C3%A2-influenzae-type-b-vaccines-in-japan
#6
Tadashi Hoshino, Noriko Takeuchi, Chie Fukasawa, Shoko Hirose, Hideyuki Okui, Hiroko Sato, Mari Sato, Yukiko Arimoto, Atsuko Nakano, Naruhiko Ishiwada
This study aimed to identify trends in frequency, serotype, and antimicrobial susceptibility of Streptococcus pneumoniae and Haemophilus influenzae isolated from middle ear fluid specimens of children aged≤15 years (mean, 2 years), before and after the introduction of the 7-valent pneumococcal conjugate vaccine (PCV7) and the H. influenzae type b vaccine, at a pediatric facility in Japan. Sixty-six S. pneumoniae and 88 H. influenzae strains were isolated from 820 middle ear fluid samples. Serotyping and antimicrobial susceptibility testing were performed...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27889248/comprehensive-study-to-investigate-the-role-of-various-aminoglycoside-resistance-mechanisms-in-clinical-isolates-of-acinetobacter-baumannii
#7
Vajihe Sheikhalizadeh, Alka Hasani, Mohammad Ahangarzadeh Rezaee, Mohammad Rahmati-Yamchi, Akbar Hasani, Reza Ghotaslou, Hamid Reza Goli
Therapeutic resistance towards most of the current treatment regime by Acinetobacter baumannii has reduced the prescribing antibiotic pattern and option is being re-shifted towards more toxic agents including aminoglycosides. The present investigation aimed at to study various mechanisms towards aminoglycoside non-susceptibility in clinical isolates of A. baumannii. The bacteria were subjected to genetic basis assessment for the presence of aminoglycoside modifying enzymes (AME), 16S rRNA methylase encoding genes and relative expression of AdeABC and AbeM efflux pumps in relation to their susceptibility to five aminoglycosides...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27889247/cutaneous-invasive-aspergillosis-in-a-patient-with-glioblastoma-receiving-long-term-temozolomide-and-corticosteroid-therapy
#8
Takashi Ikeda, Jun Suzuki, Masataro Norizuki, Taro Okabe, Tsubasa Onishi, Teppei Sasahara, Masaki Toshima, Hidenori Yokota, Shuji Hatakeyama, Yuji Morisawa
Glioblastoma is an aggressive brain tumor that requires multidisciplinary treatment including adjuvant radiotherapy, chemotherapy, and adjunct corticosteroids. Temozolomide is a commonly used chemotherapy drug and frequently causes lymphocytopenia. We describe the case of a 67-year-old woman with cutaneous invasive aspergillosis who had received long-term temozolomide and corticosteroid therapy for glioblastoma. She presented with multiple indurations, erythema, and purpura, some of which produced purulent discharge, in the anterior abdomen...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27889246/risk-factors-for-propionibacterium-acnes-infection-after-neurosurgery-a-case-control-study
#9
Yuto Haruki, Hideharu Hagiya, Yu Takahashi, Hideyuki Yoshida, Kazuki Kobayashi, Tadato Yukiue, Nobushige Tsuboi, Tetsuhiro Sugiyama
Propionibacterium acnes is increasingly known as a causative organism for post-neurosurgical infection; however, no clinical studies have examined the risk factors associated with P. acnes infections. Clinical data obtained from 14 cases of P. acnes infection and 28 controls infected with other pathogens were analyzed. Craniotomy, malignancy, and prolonged duration of operation were significantly associated with the onset of P. acnes infection. No fatal cases were reported.
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27887787/vascular-endothelial-growth-factor-vegf-and-platelet-derived-growth-factor-pdgf-levels-in-the-cerebrospinal-fluid-of-children-with-influenza-associated-encephalopathy
#10
Shinichiro Morichi, Natsumi Morishita, Mika Takeshita, Yu Ishida, Shingo Oana, Gaku Yamanaka, Yasuyo Kashiwagi, Hisashi Kawashima
INTRODUCTION: To search for an index of neurologic prognosis of children with influenza-associated encephalopathy (IAE), involvement of angiogenesis-related growth factors in the pathology was investigated. PATIENTS AND METHODS: The subjects were 11 IAE patients, 6 patients with bacterial meningitis (BM), and 24 patients with non-central nervous system infection as a control group admitted to our hospital. The correlation between the vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) levels in cerebrospinal fluid and the relationship with an index of inflammatory marker, interleukin (IL)-6, were investigated...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27865699/tnf-%C3%AE-inhibits-the-growth-of-legionella-pneumophila-in-airway-epithelial-cells-by-inducing-apoptosis
#11
Yasuhide Kawamoto, Yoshitomo Morinaga, Yumiko Kimura, Norihito Kaku, Kosuke Kosai, Naoki Uno, Hiroo Hasegawa, Katsunori Yanagihara
BACKGROUND: TNF-α plays an important role in the pathogenesis of Legionella pneumophila (Lp)-induced pneumonia. Patients undergoing anti-TNF-α therapy are at an increased risk of Lp infection. Lp infects both phagocytic and non-phagocytic cells such as airway epithelial cells; however, the role of TNF-α in airway epithelial cells is unknown. METHODS: Human airway epithelial cell line NCI-H292 was infected with Lp NUL1 strain. After infection, both intracellular growth of Lp and cell death were evaluated after treating the cells with or without TNF-α...
November 16, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27856109/colistin-loading-dose-enhanced-antimicrobial-activity-for-in%C3%A2-vivo-mouse-thigh-infection-model-with-pseudomonas-aeruginosa-with-highly-antimicrobial-resistant
#12
Mao Hagihara, Hideo Kato, Jun Hirai, Naoya Nishiyama, Yusuke Koizumi, Daisuke Sakanashi, Hiroyuki Suematsu, Yuka Yamagishi, Hiroshige Mikamo
This is the first report to test the loading dosage of colistin against Pseudomonas aeruginosa, including MDRP. Using in vivo murine thigh infection model, in the loading dosage regimen (Day 1:50 mg/kg q12 h, Day 2-3: 25 mg/kg q12 h) group, 5 to 6 log10 CFU/ml reduction compared with control were observed for both strains of P. aeruginosa with colistin MIC 0.5 and 1 μg/mL at 72 h. But, similar reduction was observed for the strains with colistin MIC 0.5 μg/mL only in normal dosage regimen (Day 1-3: 25 mg/kg q12 h) group...
November 15, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27847295/pyomyositis-caused-by-streptococcus-pneumoniae-after-allogeneic-hematopoietic-stem-cell-transplantation
#13
Shuhei Kurosawa, Noriko Doki, Noritaka Sekiya, Yasushi Senoo, Syuzo Ikuta, Yasunobu Takaki, Kazuteru Ohashi
Pyomyositis is classified into two main types: tropical and non-tropical. Non-tropical pyomyositis occurs among various immunocompromised patients, and Staphylococcus aureus has been reported as the most common pathogen. Pyomyositis caused by Streptococcus pneumoniae is uncommon, and has not been previously reported after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Here, we report a unique case with pyomyositis caused by S. pneumoniae in the bilateral erector spinae muscles 34 months after allo-HSCT...
November 12, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27825722/current-status-of-hiv-aids-in-the-art-era
#14
REVIEW
Kazuhisa Yoshimura
Human immunodeficiency virus (HIV) spread to humans from chimpanzees (HIV-1 groups M and N), gorillas (HIV-1 groups P and O), and sooty mangabeys (HIV-2). HIV is spread mainly through blood or body fluids. Subjects can become infected with HIV by sexual contact, needle sharing, blood transfusions, or maternal transmissions as a blood-borne virus or via breast-milk. The incubation period of HIV-1 from infection to the development of AIDS ranges from 8 to 11 years. In the past 3 decades, HIV has caused a great burden to global wealth and health...
November 5, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27780680/diseases-affecting-patients-returning-from-abroad-experience-of-a-travel-clinic-in-japan-from-2004-to-2014
#15
Yukihiro Yoshimura, Nobuyuki Miyata, Makiko Miyajima, Yohei Sakamoto, Yuichiro Amano, Natsuo Tachikawa
The number of patients returning from or staying abroad is likely to increase in the future. We performed a retrospective study of patients returning from abroad in our travel clinic in Japan. All patients presenting within 6 months of traveling abroad between 2004 and 2014 were included in the present study. A total of 2374 (mean age, 35 years) patients were seen by doctors specializing in treating infectious diseases. Of these, 918 were females and 87 of them lived abroad. Diagnoses and exposure regions were recorded for all patients...
October 22, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27771157/the-diagnostic-value-of-soluble-urokinase-plasminogen-activator-receptor-supar-compared-to-c-reactive-protein-crp-and-procalcitonin-pct-in-children-with-systemic-inflammatory-response-syndrome-sirs
#16
Melis Şirinoğlu, Ahmet Soysal, Ayşe Karaaslan, Eda Kepenekli Kadayifci, Nilüfer Yalındağ-Öztürk, İsmail Cinel, Ali Yaman, Goncagül Haklar, Önder Şirikci, Serap Turan, Gülşen Altınkanat Gelmez, Güner Söyletir, Mustafa Bakır
BACKGROUND: The aim of the present study was to determine the diagnostic and prognostic values of suPAR and to compare them to CRP and PCT in pediatric patients with systemic inflammatory response syndrome (SIRS). MATERIAL-METHODS: A prospective case-control study was performed.The study was performed in a tertiary university hospital which has a 649-bed capacity. Patients included 27 children with SIRS and 27 control subjects without any infection or immunosuppressive condition...
October 19, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27769646/non-molecular-detection-of-carbapenemases-in-enterobacteriaceae-clinical-isolates
#17
A Aguirre-Quiñonero, L Martínez-Martínez
Infections caused by carbapenemase-producing bacteria are becoming a major clinical and public health concern. Detection of carbapenemase producing strains is often challenging, since susceptibility to carbapenems may vary significantly among carbapenemase producers. Some carbapenemases have shown to exhibit weak activity against carbapenems leading to minimum inhibitory concentrations of carbapenems below the breakpoint for defining clinical resistance and even below the proposed screening breakpoint. Thus, reliable and rapid detection of carbapenemase-activity is needed for an appropriate patient management and a rapid implementation of infection prevention and control measures...
October 18, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27769645/nosocomial-spread-of-klebsiella-pneumoniae-isolates-producing-blages-4-carbapenemase-at-a-japanese-hospital
#18
Katsutoshi Yamasaki, Masaru Komatsu, Tamotsu Ono, Hisaaki Nishio, Noriyuki Sueyoshi, Kaneyuki Kida, Kaori Satoh, Hirofumi Toda, Isao Nishi, Masahiro Akagi, Tetsu Mizutani, Isako Nakai, Tomomi Kofuku, Tamaki Orita, Takuya Zikimoto, Tatsuya Nakamura, Yasunao Wada
Six Klebsiella pneumoniae clinical isolates resistant to various cephalosporins and cephamycins were identified in a Japanese general hospital, a tertiary care hospital, between November 2009 and April 2010. All K. pneumoniae isolates carried blaGES-4 and blaSHV-1, while 2 K. pneumoniae isolates also harbored blaCTX-M-15. The pulsed-field gel electrophoresis patterns revealed that these 6 K. pneumoniae isolates were almost identical, suggesting their clonal relatedness. Plasmid profiles and conjugation assays revealed that these blaGES-4 genes were located on similar conjugative plasmids...
October 18, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27729193/addition-of-maraviroc-to-antiretroviral-therapy-decreased-interferon-%C3%AE-mrna-in-the-cd4-t-cells-of-patients-with-suboptimal-cd4-t-cell-recovery
#19
Rumi Minami, Soichiro Takahama, Yu Kaku, Masahiro Yamamoto
The CCR5 antagonist, maraviroc (MVC), is associated with an enhanced CD4+ T-cell response independent of virological suppression; however, its mechanism of action has not been elucidated. In this study, we confirmed the effect of MVC on CD4+ T-cell count recovery in immunological non-responders, and compared the conventional combination antiretroviral therapy (cART) with MVC-intensified cART. We also investigated the effect of MVC on interferon-γ (IFN-γ) production in CD4+ T cells in vitro and in vivo, and evaluated the relationship between the mRNA level of IFN-γ and the degree of CD4+ T-cell count recovery...
October 8, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27729192/risk-factors-for-drug-resistant-pathogens-in-immunocompetent-patients-with-pneumonia-evaluation-of-pes-pathogens
#20
Tadashi Ishida, Akihiro Ito, Yasuyoshi Washio, Akio Yamazaki, Maki Noyama, Fumiaki Tokioka, Machiko Arita
RATIONALE: The new acronym, PES pathogens (Pseudomonas aeruginosa, Enterobacteriaceae extended-spectrum beta-lactamase-positive, and methicillin-resistant Staphylococcus aureus), was recently proposed to identify drug-resistant pathogens associated with community-acquired pneumonia. OBJECTIVES: To evaluate the risk factors for antimicrobial-resistant pathogens in immunocompetent patients with pneumonia and to validate the role of PES pathogens. METHODS: A retrospective analysis of a prospective observational study of immunocompetent patients with pneumonia between March 2009 and June 2015 was conducted...
October 8, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
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