Publications by authors named "Nojima J"

222 nm far-ultraviolet (F-UV) light has a bactericidal effect similar to deep-ultraviolet (D-UV) light of about a 260 nm wavelength. The cytotoxic effect of 222 nm F-UV has not been fully investigated. DLD-1 cells were cultured in a monolayer and irradiated with 222 nm F-UV or 254 nm D-UV.

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Background: Thrombosis is a unique complication of coronavirus disease 2019 (COVID-19). Although antiphospholipid antibodies (aPL) are detected in COVID-19 patients, their clinical significance remains elusive. We evaluated the prevalence of aPL and serum concentrations of beta-2 glycoprotein I (β2GPI), a major self-antigen for aPL, in Japanese COVID-19 patients with and without thrombosis.

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Chronic oxidative stress induces deterioration of health and a risk for the onset of various diseases. Previous clinical studies revealed that electrolyzed hydrogen water (EHW) is effective to reduce oxidative stress during hemodialysis in patients with chronic dialysis. In the present observational study, we investigated the antioxidant effects of a daily continuous intake of EHW in healthy adults.

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  • A study evaluated the use of IgA class antibodies for diagnosing cat scratch disease (CSD) by developing an indirect immunofluorescent assay (IFA) with Bartonella henselae.
  • The sensitivity of the IgA-IFA was found to be 57.4% for confirmed CSD cases and improved to 75.0% when combined with IgM-IFA.
  • For clinically suspected, but not confirmed, cases, IgA-IFA identified 12 additional early-stage CSD cases, suggesting that using IgA-IFA alongside traditional tests could enhance early diagnosis rates.
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DNA methylation of both viral and host DNA is one of the major mechanisms involved in the development of Epstein-Barr virus-associated gastric carcinoma (EBVaGC); thus, epigenetic treatment using demethylating agents would seem to be promising. We have verified the effect of MC180295, which was discovered by screening for demethylating agents. MC180295 inhibited cell growth of the EBVaGC cell lines YCCEL1 and SNU719 in a dose-dependent manner.

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Background: Anticardiolipin antibodies (aCL) and anti-β -glycoprotein I antibodies (aβ GPI) are essential in diagnosing antiphospholipid syndrome (APS) according to the international APS guideline. Five commercial assays for aCL and aβ GPI are available in Japan, but their test results are quite discordant. For harmonization of diagnosing APS, upper reference limit (URL) and diagnostic accuracy of each assay were evaluated and compared by testing common sets of specimens across all assays.

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Objectives: This study aimed to explore the seasonal and regional features of cat-scratch disease (CSD) based on 15-years of test results for anti-Bartonella henselae IgG and IgM by immunofluorescence assay (IFA) performed as a laboratory specialized in diagnostic testing of CSD in Japan. A literature search was performed to put our findings in perspective.

Methods: A total of 956 sera from patients suspected of CSD were submitted to our laboratory from nationwide.

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Background: , which is associated with periodontitis and gingivitis, has been detected in colorectal cancer (CRC).

Methods: We evaluated the bactericidal effect of deep ultraviolet (DUV) light-emitting diode (LED) light therapy on both qualitatively and quantitatively. Two DUV-LEDs with peak wavelengths of 265 and 280-nm were used.

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Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a serious, debilitating disorder with a wide spectrum of symptoms, including pain, depression, and neurocognitive deterioration. Over 17 million people around the world have ME/CFS, predominantly women with peak onset at 30-50 years. Given the wide spectrum of symptoms and unclear etiology, specific biomarkers for diagnosis and stratification of ME/CFS are lacking.

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Introduction: Patients with systemic lupus erythematosus (SLE) possessing anti-phospholipid antibodies (aPLs) are often complicated by thrombotic vascular events. aPLs commonly associated with the complications are anti-cardiolipin/β-glycoprotein I antibodies (aCL/βGPI) and anti-phosphatidylserine/prothrombin antibodies (aPS/PT). However, the pathological mechanisms leading to thrombosis remain unclear.

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d-dimer is a potential biomarker for the detection of traumatic brain injury (TBI). However, the mechanisms that trigger elevation of d-dimer in TBI remain unclear. The purpose of this study was to evaluate the reliability of d-dimer in blood as a biomarker for TBI and to determine the mechanisms involved in regulating its blood levels.

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  • Flash glucose monitoring (FGM) is a sensor system for tracking blood glucose in diabetic patients, and this study analyzed its correlation with traditional self-monitoring of blood glucose (SMBG) methods.
  • In a study with 30 insulin-treated diabetes patients over two weeks, the results showed a high correlation (r = 0.8413) between FGM sensor glucose (SG) and SMBG values, although SG values were on average 7.9 mg/dL lower.
  • The research identified four distinct correlation patterns between SG and SMBG measurements, which can help diabetes educators provide better treatment guidance to patients.
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We used real-time PCR to detect Bartonella henselae DNA in 7.9% (5/63) of blood specimens from seronegative patients in Japan suspected of having cat-scratch disease. The combined use of serologic tests and real-time PCR to analyze blood specimens is recommended for the prompt, noninvasive laboratory diagnosis of cat-scratch disease.

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Health and a vibrant life are sought by everyone. To improve quality of life (QOL), maintain a healthy state, and prevent various diseases, evaluations of the effects of potentially QOL-increasing factors are important. Chronic oxidative stress and inflammation cause deteriorations in central nervous system function, leading to low QOL.

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It is difficult to distinguish the onset of renal function decline from the typical variation in estimated glomerular filtration rate (eGFR) measurements in clinical practice. In this study, we used data analysis incorporating smoothing techniques to identify significant trends despite large amounts of noise. We identified the starting points of meaningful eGFR decline based on eGFR trajectories.

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We evaluated the utility of Western blot (WB) bands of e in detecting anti- immunoglobulin M (IgM) for serodiagnosis of cat scratch disease (CSD). IgM band patterns were examined using sera from 92 patients clinically suspected of having CSD and from 130 healthy individuals. Positive WB bands were observed in 49 (53.

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Bartonella henselae strains genetically differ among nations. The utility of Japanese-specific YH-01 strain was investigated in developing indirect fluorescence antibody assay (IFA) for IgM in comparison with conventional IFA employing Houston-1 strain by testing 100 Japanese patients suspected of cat scratch disease. The country-specific IFA greatly improved the accuracy of diagnosis.

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  • The study focuses on the connection between antiphospholipid syndrome and systemic lupus erythematosus (SLE), highlighting its association with increased risk of thrombosis and fetal loss.
  • A novel enzyme immunoassay system was developed to measure six subclasses of antiphospholipid antibodies in patients and healthy individuals to better understand their relation to thromboembolic events.
  • Results showed that IgG aCL, IgA aCL, and IgG aβ2GPI are strongly linked to thromboembolic complications, indicating that this new testing method can improve early diagnosis of antiphospholipid syndrome.
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We sought to determine whether oxidative stress and anti-oxidative activity could act as biomarkers that discriminate patients with chronic fatigue syndrome (CFS) from healthy volunteers at acute and sub-acute fatigue and resting conditions. We calculated the oxidative stress index (OSI) from reactive oxygen metabolites-derived compounds (d-ROMs) and the biological antioxidant potential (BAP). We determined changes in d-ROMs, BAP, and OSI in acute and sub-acute fatigue in two healthy groups, and compared their values at rest between patients with CFS (diagnosed by Fukuda 1994 criteria) and another group of healthy controls.

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The aim of this study was to evaluate the benefit of oral ubiquinol-10 supplementation in CFS patients using an open-label study and a randomized, double-blinded, placebo-controlled (RCT) study. Twenty patients with CFS were randomly enrolled in an 8-week open-label oral ubiquinol-10 (150 mg ubiquinol-10/day) study. The patients and the attending physicians were not blinded to the supplementation.

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Low-grade cribriform cystadenocarcinoma (LGCCC) is a malignant salivary gland tumor. LGCCC occurs rarely, with the parotid gland being the most commonly afflicted site. Few cases arise in other sites.

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