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1.
J AAPOS ; 28(2): 103859, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38438072

RESUMO

We describe 3 infants with congenital dacryocystocele resistant to conservative treatment who were treated with a novel, simple intranasal cyst marsupialization (ICM) technique. Otoscopy-guided ICM was performed by an otolaryngologist in the manner of otoscopic myringotomy for cases with nasal cyst distension. All 3 infants were treated successfully by a single surgical procedure under topical anesthesia in an office setting.


Assuntos
Cistos , Dacriocistorinostomia , Obstrução dos Ductos Lacrimais , Lactente , Humanos , Otoscopia , Endoscopia/métodos , Obstrução dos Ductos Lacrimais/congênito , Cistos/cirurgia , Cistos/congênito
2.
Br J Ophthalmol ; 2024 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-38242699

RESUMO

AIM: Congenital nasolacrimal duct obstruction (CNLDO) is the most common cause of epiphora and mucous discharge in the newborn. We conducted a multicentre randomised controlled trial to determine whether Crigler massage promotes the resolution of CNLDO in infants under 1 year of age. METHODS: A total of 102 infants aged 3-11 months with unilateral CNLDO were enrolled in the study. Patients were randomly assigned to the massage and non-massage groups (n=51/group). As an allocation adjustment factor, the patients were divided into age groups of 3-5, 6-8 and 9-11 months. In the massage group, the guardian performed 10 strokes two times per day for each day until resolution or 1 month. The primary endpoint was a comparison of the 1-month resolution rate in the massage and non-massage groups. RESULTS: This study included 49 male and 53 female patients with a mean age of 6.4±2.4 months. Overall, in this study, the resolution rate was not significantly different between the massage and non-massage groups (31.4% and 33.3%, respectively). However, the resolution rate was higher in the massage group in the 3-5 months age group among the protocol-compliant patients after excluding those with insufficient massage frequency (the massage group, 68.8% and the non-massage group, 28.6%, p=0.022). CONCLUSIONS: There was no increase in the resolution rate after 1 month of lacrimal sac massage in patients 3-11 months old with unilateral CNLDO. However, in protocol-compliant younger age groups, Crigler massage may be effective. TRIAL REGISTRATION NUMBER: UMIN Clinical Trial Registry (UMIN000032840; www.umin.ac.jp/).

3.
Eur J Clin Microbiol Infect Dis ; 43(3): 423-433, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38112966

RESUMO

PURPOSE: Anaerobic bacteria, existing on human skin and mucous membranes, can cause severe infections with complications or mortality. We examined the clinical characteristics of patients infected with Fusobacterium spp. and assessed their antibiotic susceptibility. METHODS: Clinical data were collated from patients diagnosed with Fusobacterium infections in a Japanese university hospital between 2014 and 2023. Antibiotic susceptibility tests were conducted following the Clinical and Laboratory Standards Institute guidelines. RESULTS: We identified 299 Fusobacterium isolates. The median age was 61 years (range, 14-95 years), with females constituting 43.1% of the patients. Most infections were community-acquired (84.6%, 253/299). Multiple bacterial strains were isolated simultaneously in 74.6% of cases. One-fourth of the patients had solid organ malignancies (25.4%, 76/299), and 14.5% (11/76) of those had colorectal cancer. The 30-day mortality rate was 1.3%. Fusobacterium species were isolated from blood cultures in 6% (18/299) of the patients. Patients, aged 75 years or older, with cerebrovascular disease or hematologic malignancy exhibited significantly higher prevalence of blood culture isolates in univariate analysis. Each Fusobacterium species had its characteristic infection site. Approximately 5% F. nucleatum and F. necrophorum isolates showed penicillin G resistance. Moxifloxacin resistance was observed in varying degrees across strains, ranging from 4.6 to 100% of isolates. All isolates were sensitive to ß-lactam/ß-lactamase inhibitors, carbapenems, and metronidazole. CONCLUSION: We show a link between Fusobacterium species and solid organ malignancies. We observed resistance to penicillin, cefmetazole, clindamycin, and moxifloxacin, warranting caution in their clinical use. This study offers valuable insights for managing Fusobacterium infections and guiding empirical treatments.


Assuntos
Infecções por Fusobacterium , Neoplasias , Feminino , Humanos , Pessoa de Meia-Idade , Fusobacterium , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Moxifloxacina , Japão/epidemiologia , Testes de Sensibilidade Microbiana , Infecções por Fusobacterium/epidemiologia , Infecções por Fusobacterium/microbiologia , Hospitais
4.
Microorganisms ; 11(4)2023 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-37110499

RESUMO

Fungemia is a fatal systemic infection that can occur in immunocompromised patients. Despite that, antifungal stewardship is spreading widely, but the mortality rate is extremely high, showing 40-60%. Loderomyces elongiporus is a newly morphologically detected pathogen, first described in 1994, followed by isolation in humans in 2008. It has been misrecognized as Candida parapsilosis. Recently, fever attributable to L. elongisporus fungemia cases has been reported, and the etiology and clinical features are still unknown. Here, we present three successfully treated L. elongisporus fungemia cases by echinocandin. In total, 11 cases were reviewed, including ours. Six of the eleven cases (55%) had external devices. All cases had some immunocompromised conditions or underlying diseases, such as diabetes mellitus, lung cancer, etc. Six patients survived, and the remaining five died. Seven patients who had received echinocandin initially survived. Risk factors for L. elongiporus fungemia overlap with those of candidemia. Even though there is no breakpoint for L. elongiporus, echinocandin can be a helpful treatment regimen for L. elongiporus fungemia.

5.
Sci Rep ; 13(1): 5857, 2023 04 11.
Artigo em Inglês | MEDLINE | ID: mdl-37041260

RESUMO

A multicenter randomized controlled trial was conducted to compare the effectiveness of incisional and nonincisional surgical techniques for treating lower lid epiblepharon in children. The study included 89 eyes from 50 children aged 3-15 years (mean, 7.5 ± 2.4 years) with moderate lower lid epiblepharon. Patients were randomly assigned to either incisional (modified Hotz procedure with lid margin splitting; 45 eyes of 25 patients) or nonincisional (44 eyes of 25 patients) surgery groups. Treatment outcomes and changes in astigmatism were evaluated 6 months after surgery. Incisional surgery provided a significantly higher percentage (77.8%) of well-corrected treatment results (P = 0.026; odds ratio, 2.88; 95% confidence interval, 1.07-8.22) than nonincisional surgery (55.4%). The mean change in astigmatism 6 months after surgery was - 0.24 ± 0.42 and - 0.01 ± 0.47 D in the incisional and nonincisional surgery groups, respectively. The improvement in astigmatism was significantly higher in the incisional surgery group than in the nonincisional surgery group (P = 0.008). The incisional surgical treatment for moderate epiblepharon in children resulted in a higher number of well-corrected patients, indicating an absence of both ciliary touch and superficial keratitis as well as statistically significant improvements in astigmatism correction.


Assuntos
Astigmatismo , Pestanas , Ferida Cirúrgica , Humanos , Criança , Estudos Retrospectivos , Resultado do Tratamento , Córnea
6.
Artigo em Japonês | MEDLINE | ID: mdl-38229457

RESUMO

Yersinia enterocolitica is a causative agent of food poisoning and has been isolated from pork and stream water, causing Yersinia enterocolitica in humans. The bacterium is divided into multiple serotypes and biotypes, among which serotypes O3 and O8 and biotypes 1B, 3, and 4 are frequently isolated in Japan. Biotype 3 can be classified as [VP+, Suc+], [VP-, Suc+], [VP-, Suc-] based on the biochemical properties. Among them, [O3, 3, VP-, Suc-] has been reported to be identified as Yersinia kristensenii in a simple identification kit. An increasing number of facilities in the field of microbiological testing are currently using mass spectrometers to identify species of microorganisms. However, there are many facilities where mass spectrometers have not yet been installed and microbial identification and susceptibility testing devices are used to identify bacterial species. No reports have described how the [O3, 3, VP-, Suc-] type, which is identified as Y. kristensenii in the simple identification kit, is identified by the microbial identification and susceptibility testing devices. In this study, 15 strains of Y. enterocolitica, which were previously isolated, serotyped, and biotyped from fecal culture tests at our hospital, were analyzed to see how these strains were identified in RAISUS S4, Microscan WalkAway, VITEK2 Blue, and BD Phoenix. [O3, 3, VP-, Suc-] was identified as Y. kristensenii in RAISUS S4, Microscan WalkAway, and VITEK2 Blue and as Y. enterocolitica in BD Phoenix. [O3, 3, VP-, Suc+], [O3, 4] and [O8, 1B] were identified as Y. enterocolitica. Therefore, when a sample was identified as Y. kristensenii by RAISUS S4, Microscan WalkAway, or VITEK2 Blue, the possibility that it was actually [O3, 3, VP-, Suc-] could not be ruled out. The possibility of Y. enterocolitica should be informed to attending physicians.


Assuntos
Yersiniose , Yersinia enterocolitica , Humanos , Sorogrupo , Yersiniose/microbiologia , Japão
7.
J Infect Chemother ; 28(1): 120-123, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34580006

RESUMO

INTRODUCTION: The pandemic of a novel coronavirus disease 2019 (COVID-19) caused by a severe acute respiratory coronavirus 2 (SARS-CoV-2) infection has been problematic worldwide. A new SARS-CoV-2 diagnostic test (SmartAmp) was licensed in Japan in July 2021. This method, which enables us to diagnose COVID-19 as well as a gene mutation on the virus, is promising to reduce medical costs and staff labor. PATIENTS AND METHODS: To analyze the diagnostic accuracy of the SmartAmp assay for diagnosing COVID-19, we performed this retrospective study at our institute during April and May 2021. We compared the results of the SmartAmp assay and real-time reverse transcription-polymerase chain reaction (rRT-PCR) using a saliva sample from individuals suspected as having COVID-19. RESULTS: Out of 70 samples tested, the SmartAmp assay had 50 (71%) positive and 20 (29%) negative results. Using rRT-PCR as a reference, the diagnostic accuracy displayed a sensitivity of 84%, a specificity of 95%, a positive predictive value of 97.7%, and a negative predictive value of 70.4%. On the other hand, false-negative cases were found in 7 (10%), and there was no significant difference of Ct-value between true positive and false negative cases (Mean Ct-value 25.2 vs. 27.5 cycles, p = 0.226 by Mann-Whitney U test). CONCLUSION: The SmartAmp assay is a valuable method to diagnose COVID-19 rapidly. However, the negative predictive value is not high enough to diagnose the disease, so that negative results should be considered for rRT-PCR testing if patients are suspected of having COVID-19.


Assuntos
COVID-19 , Saliva , Humanos , Estudos Retrospectivos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Transcrição Reversa , SARS-CoV-2 , Sensibilidade e Especificidade
8.
J Infect Chemother ; 27(7): 1039-1042, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33840598

RESUMO

INTRODUCTION: The pandemic of a novel coronavirus disease 2019 (COVID-19) caused by a severe acute respiratory coronavirus 2 (SARS-CoV-2) infection has been problematic worldwide. A new SARS-CoV-2 antigen test (LUMIPULSEⓇ) was licensed and widely used in Japan since May 2020. We conducted this study intending to whether the automated quantitative CLEIA antigen test using a saliva sample is effective and valid for the diagnosis of COVID-19. PATIENTS AND METHODS: We analyzed and compared the diagnostic accuracy of both the automated quantitative CLEIA antigen test and real-time RT-PCR (rRT-PCR) using a saliva sample from individuals suspected as having COVID-19. RESULTS: A total of 305 samples were collected and tested in Aichi Medical University Hospital and affiliated facilities from December 2020 until January 2021 at our institute. Using reverse-transcription PCR as a reference, the AUROC of the automated quantitative CLEIA antigen test was 0.903 (95% confidential interval 0.845-0.962, p < 0.001). The appropriate cut-off antigen level was 4.0 pg/mL and had a sensitivity of 77.8%, a specificity of 99.6%, a positive predictive value of 98%, and a negative predictive value of 94.5%. On the other hand, the diagnostic accuracy of the antigen test decreased among patients among patients with COVID-19 with threshold cycle (Ct-value)≥27, which shows the AUROC was 0.795 (95%CI 0.687-0.907, p < 0.001). CONCLUSION: While the automated quantitative CLEIA antigen test from saliva specimen could be one of the most useful diagnostic tests for the diagnosis of COVID-19 in general practice, clinicians should know the limitations of the antigen test.


Assuntos
COVID-19 , Saliva , Humanos , Técnicas Imunoenzimáticas , Japão , SARS-CoV-2 , Sensibilidade e Especificidade
9.
J Infect Chemother ; 27(5): 747-750, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33402300

RESUMO

We report a case of prosthetic arthritis caused by Cardiobacterium valvarum, which has been exclusively reported to cause intravascular infections. A 81-year-old Japanese female complained prosthetic knee joint pain. Arthrocentesis cultured no pathogen, and surgical replacement of the implant surface was performed. Modified Levinthal medium culture and 16S rRNA sequencing has finally led to diagnosis of C. valvarum prosthetic knee arthritis without cardiac lesions. Fastidious bacteria such as C. valvarum can be candidate pathogens of orthopedic infections whose causative agents are sometimes unidentified. Further development of molecular diagnostics is expected, but also the importance of conventional methods should be noted.


Assuntos
Artrite , Cardiobacterium , Endocardite Bacteriana , Idoso de 80 Anos ou mais , Endocardite Bacteriana/diagnóstico , Endocardite Bacteriana/tratamento farmacológico , Feminino , Humanos , RNA Ribossômico 16S/genética
10.
J Infect Chemother ; 27(1): 126-129, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33060046

RESUMO

Considering the issues of shortage of medical resources and the invasiveness and infection risk involved in the collection of nasopharyngeal swab specimens, there is a need for an effective alternative test specimen for SARS-CoV-2 RNA detection. Here, we investigated suitability of saliva as a non-invasively obtained specimen for molecular detection of SARS-CoV-2 RNA in Japanese patients with COVID-19. In total, 28 paired clinical specimens of saliva and nasopharyngeal swabs were collected from 12 patients at various time points after symptom onset. Each specimen was assayed using reverse transcription real-time polymerase chain reaction (rRT-PCR) on the BD MAX open system using primers and probes targeting the N-gene. The saliva and nasopharyngeal swab specimens showed 19 and 15 positive results, respectively. No invalid (PCR inhibition) result was observed for any specimen. The qualitative results of each specimen obtained in the period immediately after symptom onset were similar. Three convalescent patients presented saliva-positive results, whereas their nasopharyngeal swabs were negative at four different time points, suggesting that saliva may be superior to nasopharyngeal swabs in terms of obtaining stable assay result of SARS-CoV-2. In conclusion, our results suggest that saliva can potentially serve as an alternative to nasopharyngeal swabs as a specimen for SARS-CoV-2 rRT-PCR. As saliva can be collected by patients themselves, it may be an effective way to overcome the shortage of personal protective equipment and specimen sampling tools.


Assuntos
Betacoronavirus/isolamento & purificação , Infecções por Coronavirus/diagnóstico , Nasofaringe/virologia , Pneumonia Viral/diagnóstico , RNA Viral/isolamento & purificação , Saliva/virologia , COVID-19 , Teste para COVID-19 , Técnicas de Laboratório Clínico , Humanos , Japão , Pandemias , Reação em Cadeia da Polimerase Via Transcriptase Reversa , SARS-CoV-2 , Manejo de Espécimes/métodos
11.
J Infect Chemother ; 27(1): 117-119, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32994136

RESUMO

The novel coronavirus disease 2019 (COVID-19) is diagnosed by positive result of reverse transcription polymerase chain reaction (RT-PCR) for the novel coronavirus. We concluded that cycle threshold value (Ct-value) of real-time RT-PCR (rRT-PCR) assay could decrease as patients recover. Results of rRT-PCR assay could remain positive among asymptomatic patients for longer than 2 weeks. The discharge criteria of COVID-19 patients using a negative result of rRT-PCR should be reconsidered.


Assuntos
Infecções por Coronavirus/diagnóstico , Pneumonia Viral/diagnóstico , Reação em Cadeia da Polimerase Via Transcriptase Reversa/métodos , Adolescente , Adulto , Idoso de 80 Anos ou mais , Doenças Assintomáticas , Betacoronavirus/isolamento & purificação , COVID-19 , Teste para COVID-19 , Vacinas contra COVID-19 , Técnicas de Laboratório Clínico/métodos , Infecções por Coronavirus/virologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nasofaringe/virologia , Pandemias , Alta do Paciente , Pneumonia Viral/virologia , SARS-CoV-2 , Índice de Gravidade de Doença , Carga Viral , Adulto Jovem
12.
J Microbiol Immunol Infect ; 54(6): 1028-1037, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32893142

RESUMO

OBJECTIVES: Procalcitonin (PCT) is an early diagnosis marker of sepsis/bacteremia. However, some reports refer to its lower responsiveness to gram-positive bacteremia. We retrospectively evaluated the PCT values at the onset of bacteremia in relation to severity index. METHODS: Patients with bacteremia caused by two gram-negative bacteria (46 E. coli and 50 Klebsiella pneumoniae) and three gram-positive bacteria (45 S. aureus, 56 S. epidermidis, and 10 S. mitis) were studied. The plasma PCT and C-reactive protein (CRP) levels were compared between species and different Sequential Organ Failure Assessment (SOFA) score groups. RESULTS: The median PCT level was higher in gram-negative than in gram-positive bacteremia in overall (13.09 vs. 0.50 ng/mL, p < 0.0001), in SOFA score≥4 group (28.85 vs.1.72 ng/mL, p < 0.0001) and in SOFA<4 group (2.64 vs. 0.42 ng/mL, p < 0.0001). Only 46%, and 11% of patients showed PCT ≥0.5 ng/mL in S. epidermidis, and S. mitis bacteremia, respectively. PCT was significantly better than CRP in discriminating gram-negative from gram-positive bacteremia (AUCROC; 0.828 and 0.634, p < 0.001), but it was low in Staphylococcus epidermidis bacteremia regardless of SOFA scores. CONCLUSIONS: PCT levels are lower in gram-positive bacteremia regardless of SOFA scores or the presence of shock. The conventional sepsis cutoff of 0.5 ng/mL may overlook certain proportions of gram-positive bacteremia.


Assuntos
Bacteriemia/diagnóstico , Bactérias Gram-Positivas/isolamento & purificação , Pró-Calcitonina/sangue , Idoso , Idoso de 80 Anos ou mais , Bacteriemia/sangue , Bacteriemia/microbiologia , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Feminino , Bactérias Gram-Negativas/isolamento & purificação , Humanos , Masculino , Pessoa de Meia-Idade , Escores de Disfunção Orgânica , Curva ROC , Estudos Retrospectivos , Choque/sangue , Choque/diagnóstico
13.
J Microbiol Immunol Infect ; 52(6): 966-972, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31813733

RESUMO

BACKGROUND/PURPOSE: Acinetobacter is an aerobic, gram-negative coccobacillus, which causes nosocomial infections including bacteremia. Recent development of molecular techniques has made classification of the Acinetobacter genomospecies possible, but there are still only a few studies comparing clinical features of the subspecies. We investigated bacteremia caused by Acinetobacter, isolated subspecies, and compared clinical features for each group. METHODS: A retrospective analysis of Acinetobacter bacteremia cases was made in a 900-bed hospital in Japan. In addition to conventional procedures, subspecies identification based on rpoB sequence was made, and comparison of clinical characteristics between each subspecies were analyzed. RESULTS: We collected 35 cases (Acinetobacter baumannii 14, A. nosocomialis 12, Acinetobacter ursingii 6, and A. seifertii 3). All of the A. seifertii bacteremia cases were blood stream infection occurring in cerebrovascular disease patients, showing particularly higher incidence of shock (100%) and high Pitt bacteremia score (PBS) (6.33 ± 2.52) in comparison to A. baumannii (43% and 2.86 ± 2.25, respectively). Sequential Organ Failure Assessment (SOFA) score and the PBS were slightly higher in A. nosocomialis in comparison to A. baumannii, and the 7 day mortality rate was higher in A. nosocomialis (25%) than in A. baumannii (7%), though this difference was not found to be significant. CONCLUSIONS: A.seifertii, the recently defined novel species, showed distinctive clinical features of bacteremia. And, in contrast to previous studies, the severity of A. nosocomialis infection was not lower than that of A. baumannii, which might suggest the influence of local epidemiology. Further characterization of these subspecies should be continued.


Assuntos
Infecções por Acinetobacter/microbiologia , Acinetobacter/classificação , Bacteriemia/microbiologia , Hospitais , Acinetobacter/efeitos dos fármacos , Acinetobacter/genética , Infecções por Acinetobacter/tratamento farmacológico , Acinetobacter baumannii/efeitos dos fármacos , Acinetobacter baumannii/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/uso terapêutico , Proteínas de Bactérias/genética , Infecção Hospitalar/microbiologia , Feminino , Genótipo , Humanos , Japão , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
14.
Artigo em Japonês | MEDLINE | ID: mdl-31856573

RESUMO

Streptococcus pneumoniae is one of the major bacterial pathogens of community-acquired pneumonia. Immunochromatographic assay tests are used to detect pneumococcal capsular antigen. In many cases, They can be read visually. The Alere™ reader (Reader), which was developed in October 2018 by Alere Medical Co., Ltd. (currently, Abbott Diagnostics Medical Co., Ltd.) for interpreting BinaxNOW™ Streptococcus pneumoniae test (BinaxNOW™), quickly displays the results of the immunochromatographic tests, objectively and accurately, as it was launched for the purpose of streamlining laboratory workflow. The performance of the reader was evaluated by using urine samples from 100 patients, who were ordered pneumococcal urine antigen test from September 2018 to February 2019 at our hospital. Of the 100 samples, 14 were visually positive and 19 were reader positive. All visually positive samples generated reader positive result. Because 1 of the 5 cases which indicated a negative visual determination and positive reader determination was a sample with strong viscosity and turbidity, it was retested after centrifugation at 3,000×g for 10 min, resulting in negative reader determination. In 2 cases, S. pneumoniae were detected in sputum gram stains and culture tests. 5 discrepant samples were all visually and reader positive after concentration by centrifugal ultrafiltration. A questionnaire about visual interpretation was conducted among 31 individuals, by using urine from day 0 to day 4 collected from the patients whose test result was visually negative, reader positive and sputum culture positive at day 0. As a result, the number of operators who determined visually positive was 0 on day 0 (0%), 16 on day 1 (51.6%), 13 on day 2 (41.9%), 2 on day 3 (6.5%), and 0 on day 4 (0%). There were individual differences in ability to interpret low level positive result visually. On the other hand, reader can remove individual differences among operators from the interpretation of BinaxNOW™ and interpret positive result earlier than visual interpretation. Therefore reader was considered to be useful tool in clinical settings.


Assuntos
Infecções Comunitárias Adquiridas , Pneumonia Pneumocócica , Streptococcus pneumoniae , Antígenos de Bactérias , Testes Diagnósticos de Rotina , Humanos , Pneumonia Pneumocócica/diagnóstico , Streptococcus pneumoniae/isolamento & purificação
15.
J Infect Chemother ; 25(5): 330-336, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30797690

RESUMO

OBJECTIVE: Current phenotypic methods for extended-spectrum ß-lactamase (ESBL), AmpC ß-lactamase (AmpC), and carbapenemases fail to detect isolates that co-produce other classes of ß-lactamases. In this study, we have developed a novel assay (Applied Multiplex Disk Method: AMU-DM) for the phenotypic detection and identification of ß-lactamases produced by Enterobacteriaceae. METHODS: We evaluated the performance of the method by comparison with PCR results for 78 Enterobacteriaceae clinical isolates that were positive by the ESBL screening test and negative by the ESBL confirmation test. Additionally, one NCTC strain and four ATCC strains were also included in the test population for the study as reference. RESULTS: For 79/83 (95%) isolates tested, the AMU-DM results matched those obtained by PCR. The concordance rates were 31/31 (100%), 11/11 (100%), 3/3 (100%), 0/1 (0%), 15/15 (100%), 16/19 (84%), and 3/3 (100%) for AmpC, ESBL and AmpC co-production, Klebsiella pneumoniae carbapenemase (KPC), KPC and ESBL co-production, metallo ß-lactamase (MBL), MBL and ESBL co-production, and MBL and AmpC co-production, respectively. CONCLUSION: The AMU-DM is convenient to perform, economical, and highly sensitive in identifying ESBLs, AmpCs, and carbapenemases. Our method may be useful in clinical settings for the implementation of relevant infection control measures and for surveillance purposes.


Assuntos
Antibacterianos/farmacologia , Proteínas de Bactérias/análise , Infecções por Enterobacteriaceae/tratamento farmacológico , Enterobacteriaceae/fisiologia , beta-Lactamases/análise , Antibacterianos/uso terapêutico , Proteínas de Bactérias/metabolismo , Cefalosporinas/farmacologia , Cefalosporinas/uso terapêutico , Enterobacteriaceae/efeitos dos fármacos , Infecções por Enterobacteriaceae/microbiologia , Humanos , Testes de Sensibilidade Microbiana/economia , Testes de Sensibilidade Microbiana/métodos , Sensibilidade e Especificidade , Resistência beta-Lactâmica , beta-Lactamases/metabolismo
16.
Ocul Immunol Inflamm ; 27(5): 699-705, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30395750

RESUMO

Purpose: To investigate whether variants in the ARMC9 gene encoding KU-MEL-1 are associated with Vogt-Koyanagi-Harada (VKH) disease in a Japanese population. Methods: We recruited 380 Japanese patients with VKH disease and 744 Japanese healthy controls to genotype seven single-nucleotide polymorphisms (SNPs) in ARMC9. We also performed imputation analysis of the ARMC9 region and 195 imputed SNPs were included in the statistical analysis. Results: We observed an increased frequency of the A allele of rs28690417 in patients compared with controls (P = 0.0097, odds ratio (OR) = 1.46). The A allele had a dominant effect on VKH disease risk (P = 0.011, OR = 1.51). However, these significant differences disappeared after Bonferroni correction (corrected P > 0.05). The remaining 201 SNPs did not show any significant association with disease risk. Conclusions: Our study suggests that ARMC9 variants do not play a critical role in the development of VKH disease.


Assuntos
Proteínas do Domínio Armadillo/genética , Predisposição Genética para Doença , Síndrome Uveomeningoencefálica/genética , Adulto , Povo Asiático/genética , Estudos de Casos e Controles , Feminino , Frequência do Gene , Genótipo , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Razão de Chances , Polimorfismo de Nucleotídeo Único
17.
J Infect Chemother ; 25(1): 75-77, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30100401

RESUMO

We determined the optimal antimicrobial in the sodium mercaptoacetic acid double disk synergy test (SMA-DDST) for the detection of IMP-1-producing Pseudomonas aeruginosa isolates in Japan and evaluated the performance of the test. Fifty-four P. aeruginosa clinical isolates were tested, including 39 IMP-1 producers and 15 non-metallo-ß-lactamase (MBL)-producing carbapenem- and ceftazidime (CAZ)-resistant isolates. The SMA-DDST was performed with CAZ, cefepime (CFPM), imipenem (IPM), meropenem (MEPM), doripenem (DRPM), or biapenem (BIPM)-containing disks. The sensitivity of the SMA-DDST with CAZ, CFPM, IPM, MEPM, DRPM, and BIPM was 39/39 (100%), 36/39 (92%), 18/39 (46%), 8/39 (21%), 19/39 (49%), and 36/39 (92%), respectively. The specificity was 15/15 (100%) for all SMA-DDSTs. This suggests that the isolates may have a resistance mechanism other than MBL production for IPM, MEPM, or DRPM. Since the CAZ resistance mechanism in P. aeruginosa is the same as that of CFPM, but differs from that of carbapenems, we conclude that combining CAZ with BIPM SMA-DDSTs can prevent any failure in the detection of IMP-1-producing P. aeruginosa.


Assuntos
Antibacterianos/farmacologia , Ceftazidima/farmacologia , Pseudomonas aeruginosa/efeitos dos fármacos , Pseudomonas aeruginosa/isolamento & purificação , Tienamicinas/farmacologia , Tioglicolatos/farmacologia , beta-Lactamases/metabolismo , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Sinergismo Farmacológico , Humanos , Japão , Sensibilidade e Especificidade
18.
J Med Case Rep ; 12(1): 307, 2018 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-30348212

RESUMO

BACKGROUND: Neurosarcoidosis is a rare complication, and cranial neuropathy is the most frequent manifestation of this disease. However, few cohesive reports have discussed multiple cranial neuropathies in Japanese patients with sarcoidosis. The present report discusses the case of a patient with sarcoid uveitis and multiple neurological findings. We further review relevant literature regarding Japanese patients with multiple cranial nerve palsies published within the past 34 years (from January 1982 to December 2016). CASE PRESENTATION: We report findings associated with the case of a 56-year-old Japanese woman with granulomatous pan-uveitis who was later diagnosed as having sarcoidosis by skin and transbronchial lung biopsies. She presented right-sided Bell's palsy and was treated with orally administered prednisolone. However, while prednisolone was tapered, she developed facial (VII) and vagus (X) nerve palsies, followed by brain parenchyma lesions, which were not associated with any additional neurological symptoms. Furthermore, she exhibited increased intraocular pressure in her right eye, and she underwent trabeculectomy. Our review of the literature revealed that 64 Japanese patients with sarcoidosis experienced multiple cranial nerve palsies between 1982 and 2016. The most commonly affected cranial nerves were the facial (VII) (73.4%) and glossopharyngeal/vagus (IX/X) nerves (48.4%). Palsies of two distinct cranial nerves were found in 40.6% of the patients, followed by palsies of three (23.4%) and four (18.8%) nerves. Almost all patients (98.3%) received systemic steroid therapy, and total or partial remission was achieved in almost all patients (96.5%). CONCLUSIONS: According to the literature, patients with multiple cranial nerve palsies associated with sarcoidosis respond well to orally administered steroid therapy. However, our findings suggest that careful follow-up is necessary for patients with neurosarcoidosis due to potential aggravation of neuropathy.


Assuntos
Granuloma/patologia , Pan-Uveíte/patologia , Sarcoidose Pulmonar/patologia , Dermatopatias/patologia , Feminino , Humanos
19.
Artigo em Japonês | MEDLINE | ID: mdl-30630335

RESUMO

As the reagent that can simultaneously detect bacterial nucleic acid/drug-resistant genes from the culture-positive liquid of blood cultures, Verigene® system includes the Verigene® Gram-Positive Blood Culture test (BC-GP) and the Verigene® Gram Negative Blood Culture test (BC-GN). This study used BC-GN to identify the names of bacteria from stock strains, urine samples, and sputum specimens and detect drug-resistant genes. The stock strains included 28 clinical isolates, 9 urine samples in which the target bacterial strain grew to 106CFU/ml or more in culture, and 9 sputum specimens in which the target bacterial strain grew to 105CFU/ml or more in culture. The bacterial identification and detection of drug-resistant genes used quality Matrix Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) analysis and conventional PCR method, respectively, followed in comparison with the results of Verigene®. As a result, the measurement results of Verigene® for the stock strains and urine samples had a high concordance rate with MALDI-TOF MS analysis and PCR method. On the other hand, the concordance rate of the sputum specimens with the Verigene® measurement results was only 40% (4 out of 10 specimens). These results suggest that BC‒GN can be an effective tool for AMR rapid diagnosis if the measurement target includes not only bacterial strains in the culture-positive liquid of blood cultures, but also other bacterial strains and urine.


Assuntos
Bacteriemia , Hemocultura , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz , Bacteriemia/diagnóstico , Hemocultura/métodos , Bactérias Gram-Negativas/isolamento & purificação , Humanos , Escarro/microbiologia , Urina/microbiologia
20.
Jpn J Antibiot ; 67(2): 123-32, 2014 Apr.
Artigo em Japonês | MEDLINE | ID: mdl-24956911

RESUMO

We investigated vancomycin-resistant genes for clinical isolates of 353 vancomycin-resistant enterococci in the Aichi Medical University hospital and 120 vancomycin-resistant enterococci from the 8 facilities in Aichi prefecture between April 2008 and January 2013. We detected 8, 105, 21 and 4 strains of enterococci with vanA, vanB, vanC1 and vanC2/C3, respectively. Among enterococci with vancomycin-resistant genes, we detected 4, 3 and 2 enterococci of vancomycin MIC level 4 microg/mL with vanB, vanC1 and vanC2/C3, respectively. According to molecular analysis using repetitive-sequence-based PCR (rep-PCR) for enterococci with vanA or vanB genes, although there have been no similarity for Enterococcus faecium with vanA and Enterococcus faecalis with vanB, high similarity was shown among E. faecium with vanB, which might be nosocomial spread in each hospital. These results showed that molecular analysis for vancomycin-resistant genes would be useful for the management of healthcare-associated infections.


Assuntos
Enterococcus/efeitos dos fármacos , Resistência a Vancomicina/genética , Enterococcus/genética , Enterococcus/isolamento & purificação , Testes de Sensibilidade Microbiana
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