Publications by authors named "Nishi J"

Background/aim: The use of hypnotic drugs can lead to accidents and injuries. However, few reports have shown their association with these events after adjusting for many concomitant medications. This study aimed to determine whether the use of hypnotic drugs was associated with accidents and injuries.

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Background: It is reasonable to introduce a microaxial flow pump (Impella) before coronary angiography and left ventriculography (LVG) to prioritize treating tissue hypoperfusion in patients with takotsubo syndrome (TTS) and refractory cardiogenic shock. However, left ventricular (LV) unloading by an Impella device might prevent contrast media from filling the left ventricle, making it difficult to evaluate LV wall motion abnormalities during LVG.

Case Summary: A 76-year-old female with ST elevations in I, II, aVL, and V1-6 on electrocardiography and severe LV dysfunction on echocardiography immediately received circulatory support with Impella CP to treat refractory cardiogenic shock.

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This research aimed to assess consumers' knowledge, perception, and practical understanding of food labels. A validated, structured questionnaire was employed for data collection. Data were collected from 1238 respondents covering all eight administrative divisions of Bangladesh using a nonrandomized convenience sampling method.

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Aim: The optimal timing of adrenaline administration after defibrillation in patients with out-of-hospital cardiac arrest (OHCA) and an initial shockable rhythm is unknown. We investigated the association between the defibrillation-to-adrenaline interval and clinical outcomes.

Methods: Between 2011 and 2020, we enrolled 1,259,960 patients with OHCA into a nationwide prospective population-based registry in Japan.

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  • The study investigated how seasonal influenza affects adults with invasive pneumococcal disease (IPD) in Japan, analyzing data from 1722 patients before and during the COVID-19 pandemic.
  • It found that the seasonal influenza epidemic declined with the pandemic, and there was a notable decrease in bacteremic pneumonia cases during this time.
  • Additionally, patients with a history of seasonal influenza had a higher rate of bacteremic pneumonia and a greater risk of death, especially among older males, prior to the pandemic.
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Background: Tsukamurella spp. are obligate aerobic, gram-positive, non-motile, and slightly acid-fast bacilli belonging to the Actinomycetes family. They share many characteristics with Nocardia, Rhodococcus, Gordonia, and the rapidly growing Mycobacterium species.

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  • * The outbreak analysis identified 30 positive SARS-CoV-2 cases, with no new infections occurring within eight days after implementing the new preventive strategies.
  • * Findings suggest that these additional measures are effective for early intervention and understanding transmission routes of the Omicron variant within healthcare settings.
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The members of the Japanese Society for Pediatric Infectious Diseases and the Japanese Society of Pediatric Pulmonology have developed Guidelines for the Management of Respiratory Infectious Diseases in Children with the objective of facilitating appropriate diagnosis, treatment and prevention of respiratory infections in children. The first edition was published in 2004 and the fifth edition was published in 2022. The Guideline 2022 consists of 2 parts, clinical questions and commentary, and includes general respiratory infections and specific infections in children with underlying diseases and severe infections.

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Background: Meticillin-resistant Staphylococcus aureus (MRSA) is the most common pathogen in orthopaedic surgical site infections (SSIs). However, few studies have investigated the transmission process of orthopaedic MRSA SSI.

Aim: To investigate the transmission process of orthopaedic MRSA SSI using epidemiological and molecular analyses and to determine a method to prevent MRSA SSI in nosocomial orthopaedic surgery.

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Background: The ESSENCE on Health Research initiative established a Working Group on Review of Investments in 2018 to improve coordination and collaboration among funders of health research capacity strengthening. The Working Group comprises more than a dozen ESSENCE members, including diverse representation by geography, country income level, the public sector, and philanthropy.

Objective: The overall goal of the Working Group is increased research on national health priorities as well as improved pandemic preparedness, and, ultimately, fewer countries with very limited research capacity.

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  • Subspecies serovar Oranienburg (SO) is typically a foodborne pathogen that rarely leads to serious infections like bacteremia; however, in 2018, 12 cases were reported in healthy individuals in southern Kyushu, Japan.
  • A study using Randomly Amplified Polymorphic DNA (RAPD) analysis and whole-genome sequencing (WGS) aimed to explore the genetic similarities of the bacteremia strains and other SO isolates, revealing the bacteremia strains formed a distinct cluster.
  • Findings indicate that the 12 cases resulted from a single SO clone, which may have a propensity for causing bacteremia, highlighting the need for increased surveillance on this clone and its relatives in future studies.
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Objective: Elizabethkingia anophelis causes meningitis, bloodstream infections, and respiratory infections in immunocompromised individuals. We examined two E. anophelis strains isolated from the first life-threatening cases caused by this species in Japan to determine the phylogenetic origin and genomic features of them.

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The transmissible capacity and toxicity of SARS-CoV-2 variants are continually changing. We report here the follow-up study of hospitalized COVID-19 patients from 2020 to 2022. It is known that the PCR diagnosis for hospitalized patients sometimes causes confusion because of the incompatibility between their diagnosis and symptoms.

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  • The study focused on the epidemiology of invasive Haemophilus influenzae disease (IHD) in adults in Japan, analyzing data from 200 patients during 2014-2018.
  • In 2018, the incidence rates were 0.12 cases per 100,000 for ages 15-64 and 0.88 for those aged ≥65, with a median patient age of 77; patients aged ≥65 also showed a higher case fatality rate of 26.1%.
  • Most cases were caused by non-typeable H. influenzae, with significant antibiotic resistance observed; the data highlights the need for preventive strategies, especially the development of vaccines for older adults.*
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Identification of viruses that infects animals or plants, and determination of their quantity are essential for the diagnosis of infectious disease and for the determination of a strategy in the treatment of virus-derived diseases. However, the concentration of viruses existing in a living body (in bodily fluid), food, drinking water, river water, and so on. is not high enough to be detected using conventional diagnostic methods.

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  • A population-based study in Japan analyzed invasive pneumococcal disease (IPD) among adults from 2013 to 2019, focusing on clinical characteristics and serotype distribution following the introduction of the pediatric 13-valent pneumococcal conjugate vaccine (PCV13).
  • The study found a reduction in fatal outcomes and a significant decrease in infections from serotypes covered by PCV13 among adults aged 15-64, while nonvaccine serotypes increased in those aged ≥ 65.
  • The findings suggest that the pediatric PCV13 vaccination has a positive indirect effect on reducing IPD incidence in adults, which supports future vaccination strategies for older populations in
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  • The study examined the effects of the PCV13 vaccine on pneumococcal meningitis among adults in Japan from 2014 to 2018, comparing those with and without the disease.
  • Annual incidence rates of meningitis were low, and younger patients with meningitis had a lower case fatality rate than those without it.
  • The vaccine showed limited direct impact on meningitis cases, as many meningitis-causing strains were not covered by PCV13, with significant resistance observed in some isolates.
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is a recently recognized human enteropathogen that is closely related to . As sometimes causes outbreaks of gastroenteritis, rapid strain typing systems, such as the O- and H-serotyping systems widely used for , will be useful for outbreak investigation and surveillance. Although an O-genotyping system has recently been developed, the diversity of H-antigens (flagellins) encoded by genes remains to be systematically investigated, and no H-serotyping or genotyping system is currently available.

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  • - Recurrent tonsillitis is primarily caused by bacteria like Streptococcus pyogenes and Haemophilus influenzae, prompting research on effective antibacterial treatments.
  • - The study tested five antibiotics on Detroit 562 cells invaded by multiple strains of these bacteria, revealing various levels of effectiveness.
  • - Garenoxacin was found to be the most effective antibiotic against the intracellular invasion of both NTHi and S. pyogenes, while amoxicillin and cefditoren pivoxil showed no effectiveness.
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  • Pneumococcal surface protein A (PspA) is a potential target for new vaccines against pneumococcal diseases, specifically adult invasive pneumococcal disease (IPD) in Japan.
  • A study analyzed 1,939 strains from IPD cases between 2014 and 2019, identifying PspA clades in 99.6% of them, revealing a significant presence of clades 1-6 with varying distributions.
  • Results indicate that PspA clades are mostly linked to specific serotypes found in existing vaccines, highlighting the prevalence of clades 1-4 in pneumococcal strains, particularly for non-vaccine serotypes, which could guide future vaccine development
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Bacillus Calmette-Guérin (BCG)-associated osteomyelitis is a rare adverse event following BCG vaccination, and there have been no previous reports of BCG-associated cervical spondylitis. Here, we describe the case of a 3-year-old immunocompetent girl who developed BCG-associated cervical spondylitis and was successfully treated by prompt surgical drainage of the abscess and administration of isoniazid and rifampicin for 9 months without sequelae.

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  • The study assesses how the decline in vaccine-covered serotypes affects the effectiveness of the 23-valent pneumococcal polysaccharide vaccine (PPSV23) against invasive pneumococcal disease (IPD) in adults.
  • Conducted in Japan from April 2013 to December 2017, the research shows that the overall effectiveness of PPSV23 against IPD was 42.2%, with only a marginal decline among the elderly.
  • The findings suggest that the national pediatric pneumococcal conjugate vaccine program had a limited impact on the effectiveness of PPSV23 in preventing IPD in adults.
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Bacteria use flagella as propellers to move to favorable environments. Escherichia albertii, a growing cause of foodborne illness and diarrhea, is reportedly non-motile and lacks flagella on its surface. Here, we report that 27 out of 59 E.

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