Publications by authors named "Fujieda S"

Fetal cardiac tumors are often the first clinical manifestation of tuberous sclerosis (TS) when fetal ultrasound screening is performed. TS is an autosomal dominant disorder caused by the mutations in or genes. Here we report a case of a patient with a fetal and neonatal cardiac tumor who underwent a genetic analysis for TS after birth.

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Background And Objective: The aim of this study was to evaluate the basic performance and accuracy as a screening test by comparing SiLIS Allergy 45+1 with View Allergy 39.

Methods: Measurements were performed with reagents and measuring instruments for View Allergy 39 and SiLIS Allergy 45+1 using blood samples of individuals with a previous history of IgE sensitizations. We compared the results between SiLIS Allergy 45+1 with View Allergy 39.

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Dectin-1, a C-type lectin, plays important roles in the induction of antifungal immunity. Caspase recruitment domain-containing protein 9 (CARD9) is essential for the dectin-1-induced production of cytokines through the activation of NF-κB. However, the molecular mechanisms underlying the dectin-1-mediated activation of CARD9 have not been fully elucidated.

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Objective: Eosinophilic otitis media (EOM) is a chronic eosinophilic inflammatory disease linked to bronchial asthma and nasal polyps. EOM is often accompanied by tympanic membrane perforation. Although the primary treatment, steroid therapy, is generally effective, its efficacy may be limited in advanced cases, particularly those involving significant thickening of the middle ear mucosa.

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Article Synopsis
  • Allergic fungal rhinosinusitis (AFRS) and eosinophilic chronic rhinosinusitis (ECRS) both involve nasal polyps but differ primarily in the presence of fungal infections in AFRS.
  • A study analyzed nasal polyps from patients with AFRS, ECRS, and non-ECRS to assess immune cell types, revealing that AFRS had more M2 macrophages compared to ECRS, which is linked to the fungal infection.
  • The findings underline the unique immune responses in AFRS versus ECRS, particularly the role of M2 macrophages in AFRS's development.
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Pollen-food allergy syndrome (PFAS) is caused by cross-reaction of a specific pollen antigen with the corresponding food allergen in sensitized individuals. The manifestations are usually limited to oral symptoms; however, sometimes, rhinitis, respiratory and skin symptoms, and anaphylactic shock may occur. In PFAS pathogenesis, when food containing protein antigens (pan-allergens) with high homology to pollen antigens is ingested, mast cells bound to pollen antigen-specific IgE distributed in the oral mucosa cross-react with the food antigen, causing a local type I allergic reaction.

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  • Allergic rhinitis (AR) caused by house dust mites (AR-HDM) is a common issue in children, and this study investigates its prevalence and characteristics in elementary students in Japan after the COVID-19 pandemic.
  • A survey of 41,000 students revealed an AR-HDM prevalence of 18.8%, with many affected kids showing symptoms before starting school, and a significant number receiving treatment.
  • Factors linked to a higher risk of developing AR-HDM include being male, being the first-born child, and having other allergic conditions like asthma and food allergies.
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  • The MERIT study was a 52-week Phase III clinical trial that evaluated the efficacy and safety of mepolizumab for treating patients with chronic rhinosinusitis with nasal polyps (CRSwNP) in Japan, Russia, and China.
  • Mepolizumab significantly improved nasal obstruction scores in patients compared to placebo, with some improvement seen in nasal polyp scores, and had a manageable safety profile with few serious adverse events.
  • The findings suggest that mepolizumab is an effective treatment option for patients suffering from CRSwNP/ECRS in these regions.
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Austocystin D is a natural compound that induces cytochrome P450 (CYP) monooxygenase-dependent DNA damage and growth inhibition in certain cancer cell lines. Cancer cells exhibiting higher sensitivity to austocystin D often display elevated CYP2J2 expression. However, the essentiality and the role of CYP2J2 for the cytotoxicity of this compound remain unclear.

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  • There is a growing need for allergy care education that caters to both specialists and non-specialists in the medical field, as existing research on this topic is limited.
  • The ENGAGE-TF developed a virtual educational program called 'Outreach Lectures,' with support from the Japanese Society of Allergology, which was promoted widely and included a survey for feedback.
  • Results showed strong satisfaction among participants, especially non-specialist physicians, indicating a significant demand for allergy education in primary care, highlighting the importance of ongoing evaluation of educational effectiveness.
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Olfactory dysfunctions decrease daily quality of life (QOL) in part by reducing the pleasure of eating. Olfaction plays an essential role in flavor sensation and palatability. The decreased QOL due to olfactory dysfunction is speculated to result from abnormal neural activities in the olfactory and limbic areas of the brain, as well as peripheral odorant receptor dysfunctions.

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Objective: Primary ciliary dyskinesia (PCD) is a relatively rare genetic disorder that affects approximately 1 in 20,000 people. Approximately 50 genes are currently known to cause PCD. In light of differences in causative genes and the medical system in Japan compared with other countries, a practical guide was needed for the diagnosis and management of Japanese PCD patients.

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  • Chronic rhinosinusitis (CRS) is an inflammatory disease with eosinophilic and noneosinophilic types, and the study aims to explore how variations in the nasal microbiome may relate to these forms.
  • Factors such as the eosinophilic nature of CRS significantly affect microbiome diversity and composition, leading to notable differences in bacterial species and functions between patient groups.
  • The study found that eosinophilic CRS patients had distinct microbiomes, with specific bacteria like Fusobacterium nucleatum linked to suppressed immune responses in airway epithelial cells, suggesting a crucial role of the nasal microbiome in CRS pathophysiology.
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Head and neck squamous cell carcinoma (HNSCC) has a poor prognosis. Each year, approximately 880,000 patients are newly diagnosed with HNSCC worldwide, and 450,000 patients with HNSCC die. Risk factors for developing HNSCC have been identified, with cigarette smoking, alcohol consumption, and viral infections being the major factors.

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Chronic rhinosinusitis (CRS) is a persistent inflammatory disease of the nasal cavity and paranasal sinuses. Traditional classification is denoted by the presence (CRSwNP) or absence of nasal polyps (CRSsNP). Particularly, CRSwNP is distinguished by the presence of infiltrating cells and inflammatory markers in the nasal mucosa.

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Background: Liquid-based cytology (LBC), now used globally for the head and neck region, has been used at our hospital since 2011. This study was designed to analyze the efficacy of LBC with immunocytochemical staining on preoperative diagnosis of salivary gland tumors.

Methods: This retrospective analysis of fine-needle aspiration (FNA) performance for salivary gland tumors was conducted at Fukui University Hospital.

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Introduction: Epidemiological studies demonstrated that cleaning work and frequent use of cleaning products are risk factors for asthma. Laundry detergents have been reported to have epithelial barrier-opening effects. However, whether laundry detergents directly induce airway inflammation and its mechanisms in vivo remain to be elucidated.

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Article Synopsis
  • - Chronic rhinosinusitis (CRS) is categorized more by endotypes than phenotypes, with periostin being highlighted as a potential biomarker, particularly for type 2 CRS.
  • - The text explores the significance of both tissue and serum periostin in CRS patients, especially considering the influence of comorbid asthma on these levels and detailing the functional role of periostin in the disease's development.
  • - Periostin has proven valuable in classifying CRS patients and assessing factors like disease severity and prognosis, but more research is needed to determine its role as a therapeutic target and its application in treatment with biologics.
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The Practical Guideline for the Management of Allergic Rhinitis, the fist guideline for allergic rhinitis in Japan, was prepared after a symposium held by the Japanese Society of Allergology in 1993. The current 9th edition was published in 2020 and is widely used today. The most recent collection of evidence from the literature was supplemented to the revised guideline to incorporate evidence-based medicine.

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Dysphagia diets are recommended to prevent choking and aspiration in people with dysphagia; however, rice-porridge and mashed rice-porridge, which are used as staple foods for people with dysphagia in Japan, are time-consuming to prepare. The National Agriculture and Food Research Organization has found jelly-like food products made from high-amylose rice-flour (rice-flour jelly) to be easy to prepare with a texture suitable for dysphagia diets. To investigate the potential of rice-flour jelly for the dysphagia diet, we evaluated the amount of pharyngeal residue after swallowing rice-flour jelly using fiberoptic endoscopic evaluation of swallowing and compared it with those of rice-porridge, mashed rice-porridge, and fruit jelly.

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Background: Eosinophilic chronic rhinosinusitis (ECRS) is a chronic inflammatory condition of the paranasal sinuses characterized by intractable nasal polyps with prominent eosinophil infiltration. These eosinophils are presumably recruited from peripheral blood via vessels expressing peripheral lymph node addressin (PNAd), a set of glycoproteins decorated with 6-sulfo sialyl Lewis x (sLe) glycans that serve as L-selectin ligands. Based on the severity classification algorithm proposed by the Japanese Epidemiological Survey of Refractory Eosinophilic Chronic Rhinosinusitis (JESREC) study group, ECRS is divided into mild, moderate and severe groups; however, as yet there are few reports comparing the clinicopathological differences among these groups.

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The olfactory tubercle (OT) is a striatal region that receives olfactory inputs. mRNAs of prodynorphin (Pdyn) and preproenkephalin (Penk), precursors of dynorphins and enkephalins, respectively, are strongly expressed in the striatum. Both produce opioid peptides with various physiological effects such as pain relief and euphoria.

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Background: The advance of endoscopic surgery has enabled selective section of the postganglionic nerve branches from pterygopalatine ganglion (PPG) as a modification of the vidian neurectomy. Recent microanatomic studies have suggested that the nasal mucosa is also innervated by multiple efferent rami associated with the sphenopalatine artery (SPA) in the procedure "posterior nasal neurectomy." This anatomic cadaveric study aims to identify all postganglionic nerve fibers in the lateral nasal wall which should inform future surgical procedures aimed at interrupting these nerve fibers.

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Background: Patients with aspirin-exacerbated respiratory disease (AERD) regularly exhibit severe nasal polyposis. Studies suggest that chronic rhinosinusitis with nasal polyps (CRSwNP) is characterized by excessive fibrin deposition associated with a profound decrease in epithelial tissue plasminogen activator (tPA). Retinoids, including vitamin A and its active metabolite retinoic acid (RA), are necessary for maintaining epithelial function and well-known inducers of tPA in endothelial cells.

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