Publications by authors named "Ichimura Y"

Reflecting the experiences of the COVID-19 pandemic, the global response was reviewed by the Independent Review Panel for Pandemic Preparedness and Response. Based on the panel reports, the World Health Organization (WHO) member states decided to establish the intergovernmental negotiating body for drafting a WHO convention, agreement or other international instrument on pandemic prevention, preparedness and response, aiming for approval at the 77 World Health Assembly in 2024 (May 27- June 1). Amidst this process, the National Center for Global Health and Medicine, Japan (NCGM), as a global health organization focusing on health system strengthening in low- and middle-income countries, from the perspective of Universal Health Coverage (UHC), provided technical inputs to the representatives of the Japanese government.

View Article and Find Full Text PDF
Article Synopsis
  • - This study compared juvenile idiopathic inflammatory myopathy (IIM) and adult-IIM by analyzing autoantibodies, clinical characteristics, and drug-free conditions in 320 patients over 20 years.
  • - Juvenile-IIM showed a higher rate of achieving drug-free conditions (34%) compared to adult-IIM (18%), with specific autoantibodies like anti-TIF1-γ linked to fewer muscle symptoms and lower malignancy rates in juveniles.
  • - Both groups had overlapping features with certain autoantibodies (like anti-MDA-5 and anti-ARS) associated with severe symptoms and a low likelihood of drug-free conditions, while treatment patterns differed notably between the two age groups.
View Article and Find Full Text PDF

Basidiomycetes with a wide variety of skeletons of secondary metabolites can be expected to be the source of new interesting biological compounds. During our research on basidiomycetes, two new C-29 oxygenated oleanane-type triterpenes (1 and 2) and torulosacid (3), a muurolene type sesquiterpenoid with a five-membered ether ring along with nine known compounds (4-12), were isolated from the MeOH extract of the fruiting bodies of Fuscoporia torulosa. The structures of 1-3 were determined by NMR and HREIMS analysis.

View Article and Find Full Text PDF

Vesiculobullous dermatomyositis (VD) is a rare manifestation of dermatomyositis (DM) and has been suggested to be associated with malignancy. Although the myositis-specific autoantibodies are associated with distinct clinical presentations of DM, those associated with VD remain unclear. Here, we present the case of a 54-year-old man with VD who tested positive for antinuclear matrix protein 2 (NXP-2) antibodies, one of the DM-specific autoantibodies.

View Article and Find Full Text PDF

Aim: To evaluate whether seasonal changes influence fluctuations in serum Krebs von den Lungen-6 (KL-6) levels in systemic sclerosis-related interstitial lung disease (SSc-ILD).

Methods: Summer was defined as the period between July and September, and winter as between December and February. The study was conducted between 2015 and 2016, with a focus on these two seasons.

View Article and Find Full Text PDF

Background: Vietnam continues to have measles and rubella outbreaks following supplementary immunization activities (SIA) and routine immunization despite both having high reported coverage. To evaluate immunization activities, age-specific immunity against measles and rubella, and the number of averted Congenital Rubella Syndrome (CRS) cases, must be estimated.

Methods: Dried blood spots were collected from 2091 randomly selected individuals aged 1-39 years.

View Article and Find Full Text PDF

Anti-melanoma differentiation-associated gene 5 (MDA5) antibody-positive dermatomyositis (DM) is characterized by amyopathic DM with interstitial lung disease (ILD). Patients with anti-MDA5 antibody-associated ILD frequently develop rapidly progression and present high mortality rate in the acute phase. Here, we established a murine model of ILD mediated by autoimmunity against MDA5.

View Article and Find Full Text PDF

Meropenem (MEPM) is used for the treatment of serious infectious diseases solely as. INJECTABLE: Therefore, the development of an oral formulation would expand its clinical utility. To this end, an exact understanding of the absorption characteristics of MEPM is essential.

View Article and Find Full Text PDF

Idiopathic inflammatory myopathies (IIMs) are divided into polymyositis and dermatomyositis (DM) with specific cutaneous manifestation. Several myositis-specific autoantibodies (MSAs) have been identified in IIMs and were found to be associated with distinct clinical features, including anti-synthetase syndrome (ASyS) and immune-mediated necrotizing myopathy (IMNM). Moreover, MSA-related clinical features have been identified even within DM.

View Article and Find Full Text PDF

Anti-nuclear matrix protein 2 (NXP2) antibody-positive dermatomyositis (DM) is characterized by extensive and severe myositis. In this study, we evaluated which cytokines/chemokines involved with the activity of the myositis. We performed quantitative immunoassays using the MILLIPLEX Multiplex Assays Using Luminex to evaluate serum levels of interferon-γ, interleukin (IL)-1β, IL-6, IL-8, IL-12p40, and tumor necrosis factor-α in samples collected over time from a 9-year-old female with anti-NXP2 antibody-positive DM.

View Article and Find Full Text PDF

Aim: To assess the usefulness of carbohydrate antigen 19-9 (CA19-9) as a biomarker for systemic sclerosis-associated interstitial lung disease (SSc-ILD), using serum samples and clinical parameters of patients with SSc.

Methods: Patients with SSc admitted to Tokyo Women's Medical University Hospital between 2010 and 2021 and those who underwent chest computed tomography (CT) were included. Patients were diagnosed with ILD based on chest CT findings, and SSc-ILD was categorized as either a limited or extensive disease based on chest CT and pulmonary function test findings.

View Article and Find Full Text PDF
Article Synopsis
  • * Experiments reveal that apremilast lowers levels of specific mRNA and proteins that contribute to fibrosis, such as type I collagen and CCN2, especially in fibroblasts from SSc patients compared to healthy individuals.
  • * In a mouse model, apremilast was effective in reducing dermal fibrosis progression and potentially works by influencing T cells, suggesting it could be a viable treatment for SSc-related skin fibrosis.
View Article and Find Full Text PDF

Introduction: Urethral hemangioma is an extremely rare occurrence and is not typically considered a common cause of hematuria. Since 2000, only 22 male cases have been reported.

Case Presentation: A 45-year-old man presented with recurrent painless gross hematuria and the passage of blood clots after ejaculation.

View Article and Find Full Text PDF

Case 1 involved a 68-year-old woman who was admitted to our hospital because of muscle weakness, diffuse subcutaneous edema, dysphagia, and an elevated serum creatine kinase level that had worsened within the previous month. Case 2 involved a 78-year-old woman who was admitted to our hospital because of muscle weakness, bilateral shoulder pain, diffuse subcutaneous edema, and dysphagia that had gradually worsened during the past 5 months. Both patients showed severe diffuse subcutaneous edema and dysphagia and underwent enteral tube feeding.

View Article and Find Full Text PDF

Dermatomyositis constitutes a heterogeneous group of autoimmune inflammatory conditions with a wide variety of clinical outcomes. The symptomatic heterogeneity carries skin, muscle, and joint manifestations; pulmonary and cardiac involvements; and concomitant malignancy. Any of these symptoms often appear at different combinations and time courses, thus posing difficulty in early diagnosis and appropriate treatment choice.

View Article and Find Full Text PDF

NRF2 is a transcription factor responsible for antioxidant stress responses that is usually regulated in a redox-dependent manner. p62 bodies formed by liquid-liquid phase separation contain Ser349-phosphorylated p62, which participates in the redox-independent activation of NRF2. However, the regulatory mechanism and physiological significance of p62 phosphorylation remain unclear.

View Article and Find Full Text PDF

Eribulin mesylate (ERB) is a synthetic analog of halichondrin B, inhibiting tumor cell growth by disrupting microtubule function. Recently, anticancer drugs have been shown to not only act directly on tumor cells but also to exert antitumor effects by modifying the tumor environment. Although ERB has also been speculated to modify the tumor microenvironment including the immune response to tumors, the precise mechanism remains unclear.

View Article and Find Full Text PDF

Background: Antigen-stimulated naïve T cells differentiate into effector and memory T cells, of which resident memory T (T) cells reside permanently in organ tissues. Involvement of T cells has been indicated in pathological conditions of various skin diseases. CD122, which is the β chain subunit of interleukin (IL)- 2 and IL-15 receptors, is expressed on immune cells including T cells.

View Article and Find Full Text PDF
Article Synopsis
  • This study assessed the effectiveness of the measles-rubella vaccination program in Laos by comparing seroprevalence data from surveys conducted in 2014 and 2019.
  • A significant increase in immunity levels was observed, with measles seroprevalence rising from 83.9% to 98.3% and rubella from 75.4% to 87.8%.
  • The findings indicate that the vaccination program likely eliminated the rubella infection's average force and prevented around 78 cases of congenital rubella syndrome by 2019, showcasing successful immunization efforts in a developing country context.
View Article and Find Full Text PDF

Introduction: We report a case of abdominal compartment syndrome due to hydroperitoneum after endoscopic combined intrarenal surgery.

Case Presentation: A 56-year-old woman with a left staghorn calculus underwent endoscopic combined intrarenal surgery as a two-staged procedure and developed a distended abdomen, cyanosis of both legs, and hypotension immediately after the second operation. A computed tomography scan showed hydroperitoneum.

View Article and Find Full Text PDF
Article Synopsis
  • This study is the first to examine the population-based seroprevalence of chronic hepatitis B and C infections in Lao PDR, providing important data on these infections.
  • A nationwide survey in June 2019 collected blood samples and found a prevalence rate of 4.2% for hepatitis B and 1.6% for hepatitis C.
  • The analysis revealed higher odds of hepatitis B infection among younger individuals, particularly those aged 20-29, and indicated variations based on region and ethnicity, suggesting the need for further confirmation in future research.
View Article and Find Full Text PDF
Article Synopsis
  • Vietnam's 3-dose hepatitis B immunization program shows positive effects on reducing chronic HBV prevalence, particularly in the age group of 20-39 compared to younger populations.
  • The study utilized a four-stage cluster sampling method and rapid testing to assess HBsAg positivity, finding significant decreases in prevalence post-vaccine implementation, except for a notable increase in certain birth cohorts during vaccine shortages.
  • Overall, the evaluation highlights the effectiveness of the HBV vaccination policy in Vietnam, emphasizing the need for monitoring birth dosing and immunization coverage to maintain progress.
View Article and Find Full Text PDF

Theobromine (TB) has been reported to promote tooth remineralization, strengthen tooth substance, and relieve dentin hypersensitivity. This study aimed to evaluate experimental tooth coating materials containing TB and surface pre-reacted glass-ionomer (S-PRG) fillers by examining the effects on bacterial adhesion and antibacterial properties. In addition, the amount of TB eluted from the coating material was measured.

View Article and Find Full Text PDF
Article Synopsis
  • Immunization is crucial for child health in Lao PDR, yet low coverage rates persist, prompting this study to identify factors influencing full immunization in children aged 12 to 35 months.
  • Researchers analyzed data from a nationwide survey, classifying children into "fully immunized" and "partially immunized" groups to assess demographics and health service usage affecting vaccination rates.
  • The findings showed that 67.6% of children were fully immunized, with hospital births significantly linked to higher immunization rates, while gaps in vaccinations primarily involved Hep B, PCV, and MCV doses.
View Article and Find Full Text PDF