Publications by authors named "Tohru Nagano"

Article Synopsis
  • The study examined whether a standard dose of bilastine (20 mg) is as effective as a double dose of second-generation H1-antihistamines for treating patients with refractory chronic spontaneous urticaria (CSU).
  • Conducted as a phase IV, multicenter trial, it involved 128 patients and measured treatment efficacy through the mean total symptom score (TSS) after 5-7 days of administration.
  • Results showed that bilastine was non-inferior in effectiveness to double-dose H1AH and had a similar safety profile, with no serious adverse effects reported in either treatment group.
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Article Synopsis
  • The study highlights the global trend of an aging population and the increasing need for innovative, non-invasive health indicators for disease prevention and health promotion.
  • Researchers analyzed hair shaft minerals and free amino acids to create a new health index and diagnostic method, comparing these components in healthy individuals to those with various diseases.
  • They found that using effect size analysis, rather than just a t test, was more effective in identifying key minerals and amino acids related to specific diseases, narrowing down the focus considerably.
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Background: Junctional epidermolysis bullosa is a rare skin and mucosal disorder characterized by blister formation in response to minor trauma and extracutaneous manifestations. There have been no reports of cardiac surgery and prognostication in patients with epidermolysis bullosa due to skin and mucosal fragility.

Case Presentation: A 55-year-old man presented with congenital junctional epidermolysis bullosa, hypertension, and vasospastic angina.

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Article Synopsis
  • Treatment options for extramammary Paget's disease (EMPD) vary based on disease stage, with distinct survival rates observed among different stages.
  • A study of 643 EMPD cases in Japan revealed that curative surgery was the most common treatment for early stages, while chemotherapy was primarily used for more advanced stages.
  • Female sex was linked to a higher risk of local relapse in early stages, while initial curative surgery significantly improved survival rates in mid to advanced stages, indicating a need for further research.*
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Varicella zoster virus (VZV) infection may cause large or medium vessel vasculitis, including granulomatous arteritis of the nervous system and central nervous system vasculitis. However, small vessel vasculitis, such as cutaneous leukocytoclastic vasculitis (LCV) associated with localized cutaneous VZV infection, herpes zoster, is uncommon. Herein, we present the case of a 75- year-old man with segmental leukocytoclastic vasculitis associated with herpes zoster on the leg.

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Bowen's disease (BD) is a form of intraepidermal squamous cell carcinoma (SCC), and it occasionally occurs on the perianal site. BD is often treated with surgical excision; however, sometimes surgical excision for perianal BD cannot preserve anal function. We report the case of a 72-year-old man presenting with perianal pain and BD.

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Article Synopsis
  • Schnitzler syndrome is a rare disorder characterized by chronic urticaria, and a nationwide survey in Japan revealed 36 clinically diagnosed cases from 1994 to 2022.
  • The median age of onset was 56.5 years, and it took an average of 3.3 years for patients to receive a final diagnosis after experiencing initial symptoms.
  • Treatments like high doses of corticosteroids were effective, with some patients also responding to agents like colchicine and IL-1 targeting therapies, but continued monitoring and research are necessary for better understanding and management of the disease.
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Praziquantel is widely used for treating parasitic infections globally, especially in countries with endemic schistosomiasis. However, severe hypersensitivity to praziquantel has rarely been reported. We report the case of a 30-year-old Japanese man who developed acute generalized exanthematous pustulosis (AGEP), which is a rare and severe cutaneous reaction usually triggered by drugs, after taking praziquantel.

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Although substantial progress has been made in the treatment of non-small-cell lung cancer (NSCLC) patients with immune checkpoint inhibitors (ICIs), severe immune-related adverse events (irAEs) sometimes occur. Here, we report a case of severe refractory pruritus after Stevens-Johnson syndrome (SJS) in a patient with NSCLC treated with nivolumab. The patient was a 76-year-old Japanese woman with advanced NSCLC treated with nivolumab.

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Toxic epidermal necrolysis (TEN) is a severe adverse drug reaction, which is characterized by erythema, blisters, and/or erosions of the mucous membranes and skin, but intestinal involvement is rare. In contrast, pneumatosis cystoides intestinalis (PCI) is a rare condition associated with a wide variety of underlying diseases, but to date no patient has presented with PCI associated with TEN. A 55-year-old man was admitted to intensive care unit for treatment of TEN caused by phenobarbital.

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Background: A prior phase I/IIa clinical trial provided evidence for safety, feasibility and potential efficacy of i.m. injection of granulocyte colony-stimulating factor (G-CSF)-mobilized CD34+ cells in patients with critical limb ischemia (CLI).

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Background: Our phase I/IIa clinical trial revealed that intramuscular transplantation of autologous, GCSF-mobilized CD34+ cells was safe, feasible and potentially effective at week 4 and 12 post cellular therapy in 17 patients with chronic critical limb ischemia (CLI) (5 patients with atherosclerotic peripheral arterial disease (PAD) and 12 with Buerger's disease). However, long-term outcome of the cell therapy has yet to be reported.

Methods And Results: Incidence of major clinical events and physiological parameters of limb ischemia were evaluated at week 52, 104, 156 and 208 post CD34+ cell therapy.

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The X-ray repair cross-complementing groups 1 gene plays an important role in base excision repair. At least three common single nucleotide polymorphisms frequently occur in this gene (Arg399Gln, Arg194Trp and Arg280His). Recent studies reported that these polymorphisms were associated with not only risk of visceral malignancy but also that of skin cancer such as basal cell carcinoma and squamous cell carcinoma, whereas the results of previous study vary among races.

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Variations in the Glutathione S-transferase (GST) supergene family have been reported to influence cancer susceptibility in Caucasian. However the genetic backgrounds and skin types are quite different between Caucasian and non-Caucasian. We therefore investigated the distribution of GST gene polymorphism in non-Caucasian population to ascertain the role of this polymorphism in skin carcinogenesis.

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Background: The majority of patients with cholinergic urticaria presents with strong hypersensitivity to autologous sweat. Patients with severe cholinergic urticaria are frequently resistant to H(1) antagonists which are used in conventional therapies for various types of urticaria. It has been reported that desensitization using partially purified sweat antigen was effective in a patient with cholinergic urticaria.

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We present herein a case of right axillary accessory breast associated with galactorrhea in an adolescent girl. A 14-year-old Japanese girl presented with an 11-month history of a tender, subcutaneous lesion in the right axillary fossa. Seven months later, she experienced menarche.

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