Publications by authors named "Okamoto Yoshitaka"

Article Synopsis
  • The 300IR house dust mite (HDM) sublingual immunotherapy (SLIT) tablet is approved for treating allergic rhinitis caused by dust mites, and a comprehensive review was conducted on its safety based on clinical trial and post-marketing data.
  • In randomized controlled trials (RCTs), 1,853 subjects received the 300IR HDM-SLIT tablet, showing mainly mild to moderate adverse events, particularly at the beginning of treatment, with no reported cases of anaphylaxis.
  • Over 7 years of real-world data corroborated the favorable safety profile of the 300IR HDM-SLIT tablet across various age groups and asthma statuses, with rare severe reactions noted.
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Article Synopsis
  • - The traditional healthcare approach often overlooks patients' personal experiences and strengths, focusing mainly on disease treatment. Person-centered care aims to align medical decisions with individual values and preferences, particularly for those with chronic conditions.
  • - This paper seeks to enhance care for rhinitis and asthma by developing digital care pathways and incorporating real-world evidence to create a more patient-centered approach.
  • - Key components of the review include advancements in mHealth, the integration of artificial intelligence, a novel classification system for airway diseases, and proposals for the ARIA 2024 guidelines, all targeting a sustainable and applicable healthcare model.
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Background: The symptoms of house dust mite (HDM)-induced allergic rhinitis (AR) vary with changes in exposure related to the weather or the domestic environment. In allergen immunotherapy (AIT) studies, a certain level of AR disease activity is necessary to demonstrate treatment efficacy; the latter can be underestimated if a substantial proportion of the patient population is weakly symptomatic.

Objective: To better estimate the real treatment effect of a HDM sublingual AIT (SLIT) tablet, we analysed the results of natural field studies in detail by applying a tertile approach.

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Background: This study aimed to clarify the diagnostic and predictive factors for perennial allergic rhinitis (PAR) onset in children by analyzing the results of the Chiba High-risk Birth Cohort for Allergy study, which examined newborns with a family history of allergies.

Methods: Overall, 306 pregnant women were recruited. Their newborns were examined by otolaryngologists and pediatric allergists at 1, 2, and 5 years of age.

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Background: We previously demonstrated the efficacy of Japanese cedar (JC) pollen sublingual immunotherapy (SLIT) tablets for treating seasonal allergic rhinitis in a clinical trial (trial no. 206-2-1) that covered 5 pollen dispersal seasons from 2015 to 2019.

Objective: Our aim was to perform analysis of the 206-2-1 trial data to evaluate the efficacy of JC pollen SLIT tablets for patients with rhinitis induced by pollen from Japanese cypress (JCY), a related Cupressaceae species that has a pollen dispersal season overlapping with that of JC.

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Data are limited for clinical outcomes with house dust mite (HDM) allergen immunotherapy beyond 2 years' observation. A post-marketing drug-use survey assessed the safety and effectiveness of the 300 index of reactivity (IR) HDM tablet during use for up to 4 years in Japan. 538 patients were evaluable for safety and 383 for effectiveness.

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Article Synopsis
  • The EQ-5D-5L is a health-related quality-of-life tool with five domains, and this study investigates how rhinitis and asthma control affect these domains.
  • Data from the MASK-air mHealth app (2015-2021) was used to evaluate the relationship between rhinitis/asthma control and EQ-5D-5L levels through visual analog scales and a symptom-medication score.
  • Findings reveal that poor control of rhinitis and asthma worsens quality of life, particularly in pain/discomfort, activity levels, anxiety/depression, and mobility.
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Background: Diagnosis, classification, and treatment of allergic rhinitis (AR) varies considerably despite the availability of treatment guidelines.

Objectives: We aimed to carry out a two-part modified Delphi panel study to elucidate global expert management of AR in real life.

Methods: The modified Delphi panel study was composed of two ten-minute online questionnaires sent to global AR experts, aiming to identify areas of consensus (defined as >75% respondent agreement) on aspects of their real-world daily practice related to AR diagnosis, classification, and pharmacotherapy.

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Background: Chronic rhinosinusitis is a common disease of the nasal cavity and is classified into two major endotypes, which are neutrophilic and eosinophilic. Some patients with neutrophilic and eosinophilic chronic rhinosinusitis are refractory to treatment, and the mechanism of drug resistance is not completely understood.

Methods: Nasal polyp samples were collected from patients with non-eosinophilic chronic rhinosinusitis (nECRS) and eosinophilic chronic rhinosinusitis (ECRS).

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Background: Early identification of infants at high risk of allergies can improve the efficacy of preventive interventions. However, an established quantifiable risk assessment method in the early postnatal period does not exist. TARC (or CCL17) is a Th2 chemokine used as an activity marker for atopic dermatitis (AD).

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Biomarkers for the diagnosis, treatment and follow-up of patients with rhinitis and/or asthma are urgently needed. Although some biologic biomarkers exist in specialist care for asthma, they cannot be largely used in primary care. There are no validated biomarkers in rhinitis or allergen immunotherapy (AIT) that can be used in clinical practice.

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Upper extremity dysfunction after stroke affects quality of life. Focusing on the shoulder joint, we investigated the safety and effectiveness of rehabilitation using a shoulder joint hybrid assistive limb (HAL). Eight patients with chronic stroke and upper extremity functional disability were enrolled and used a shoulder joint HAL, which assisted shoulder movement based on the user's intention, through myoelectric activation of the shoulder flexor.

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MASK-air , a validated mHealth app (Medical Device regulation Class IIa) has enabled large observational implementation studies in over 58,000 people with allergic rhinitis and/or asthma. It can help to address unmet patient needs in rhinitis and asthma care. MASK-air is a Good Practice of DG Santé on digitally-enabled, patient-centred care.

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Background: Anaphylaxis is a potentially fatal severe systemic hypersensitivity reaction that causes symptoms in multiple organs such as the skin, respiratory tract, and gastrointestinal tract; however, no nationwide epidemiological survey on anaphylaxis has been conducted in Japan. This survey aimed to elucidate the triggers and treatment of anaphylaxis in Japan.

Methods: Between February 2015 and October 2017, we prospectively collected clinical data on the triggers and treatment of patients who developed anaphylaxis or were admitted to the emergency room with anaphylaxis in the training and teaching facilities of the Japanese Society of Allergology.

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Article Synopsis
  • The study aimed to establish cutoff values for visual analog scales (VAS) related to global, nasal, ocular, and asthma symptoms in allergic rhinitis patients using MASK-air data.
  • The researchers compared methods based on percentiles and data-driven clusters, analyzing data from over 23,000 users and assessing the relevance of these cutoffs.
  • Results indicated that the data-driven approach provided more precise cutoff values for classifying patients' control levels, aiding in better management of allergic rhinitis and asthma.
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Digital health is an umbrella term which encompasses eHealth and benefits from areas such as advanced computer sciences. eHealth includes mHealth apps, which offer the potential to redesign aspects of healthcare delivery. The capacity of apps to collect large amounts of longitudinal, real-time, real-world data enables the progression of biomedical knowledge.

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Purpose: Our study compared knowledge of, and attitudes towards, allergic rhinitis (AR) among patients and physicians in: Brazil, Japan, Korea, Mexico, Saudi Arabia, Spain, United Arab Emirates, and the United Kingdom.

Patients And Methods: Patients with AR were recruited via probability-based sampling. Data were captured via telephone interview, personal interview, or self-administered online survey.

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Sublingual immunotherapy for Japanese cedar pollinosis can improve the symptoms of allergic rhinitis and modify its natural course. However, sublingual immunotherapy requires a long treatment period and some patients do not respond to treatment. In this study, we aimed to identify biomarkers that could predict the efficacy of sublingual immunotherapy at an early stage.

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Introduction: Data from mHealth apps can provide valuable information on rhinitis control and treatment patterns. However, in MASK-air®, these data have only been analyzed cross-sectionally, without considering the changes of symptoms over time. We analyzed data from MASK-air® longitudinally, clustering weeks according to reported rhinitis symptoms.

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Background: Several studies have suggested an impact of allergic rhinitis on academic productivity. However, large studies with real-world data (RWD) are not available.

Objective: To use RWD to assess the impact of allergic rhinitis on academic performance (measured through a visual analog scale [VAS] education and the Work Productivity and Activity Impairment Questionnaire plus Classroom Impairment Questions: Allergy Specific [WPAI+CIQ:AS] questionnaire), and to identify factors associated with the impact of allergic rhinitis on academic performance.

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Background: Eosinophils are major effector cells of allergic disease and excellent markers of eosinophilic inflammation. Accurate and reliable biomarkers are helpful in the diagnosis, treatment, and control of allergic disease.

Objective: This study aimed to investigate an alternate marker of eosinophilic inflammation, eosinophil-derived neurotoxin (EDN), in a number of allergic diseases.

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Background: Allergic rhinitis is a growing problem worldwide. Currently the only treatment that can modify the disease is antigen-specific immunotherapy, but its mechanism of action is not fully understood.

Objective: We comprehensively investigated the role and changes of antigen-specific T cells before and after sublingual immunotherapy (SLIT) for Japanese cedar pollinosis.

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Several studies have reported the effects of short-term immobilization of the upper limb on the excitability of the primary motor cortex. In a report examining the effects of upper limb immobilization on somatosensory information processing using somatosensory-evoked potentials (SEPs), short-term upper limb immobilization reduced the amplitude and increased the latency of the P45 component recorded over the contralateral sensorimotor cortex of SEPs. However, the effects of upper limb immobilization on other regions involved in somatosensory information processing are unknown.

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