Ryosuke Miyaji

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OBJECTIVE To assess the feasibility of T-cell receptor excision circles (TRECs) quantification for neonatal mass screening of severe combined immunodeficiency (SCID). STUDY DESIGN Real-time PCR based quantification of TRECs for 471 healthy control patients and 18 patients with SCID with various genetic abnormalities (IL2RG, JAK3, ADA, LIG4, RAG1) were(More)
BACKGROUND Several studies have suggested that Langerhans cell histiocytosis (LCH) is responsive to treatment with bisphosphonates (BPs). However the efficacy and safety of BPs therapy for childhood LCH is unknown. PROCEDURE Data on children with LCH who had received BPs therapy were collected retrospectively from hospitals participating in the Japanese(More)
BACKGROUND Children with acute lymphoblastic leukemia (ALL) who fail to achieve complete remission (CR) after induction therapy (induction failure: IF) have a poor prognosis; however, there have been few prospective studies in patients with IF. PATIENTS AND METHODS Between April 1997 and March 2005, 27 of 1,237 leukemic patients (2.2%) failed to achieve(More)
BACKGROUND Previous reports have shown that storage decrease the ability of PLTs to aggregate in the form of PLT concentrate (PC). Nevertheless, there are few reports that have studied the PLT function in blood samples obtained from recipients after PLT transfusion. In this study, this issue was addressed by examining the ability of PLTs to aggregate after(More)
This paper presents a new method for evaluating tooth brushing performance using audio collected from a smartphone. To do this, we use hidden Markov models (HMMs) to recognize audio data that include various types of tooth brushing actions, such as <i>brushing the outer surface of the front teeth</i> and <i>brushing the inner surface of the back teeth</i>.(More)
A 13-year-old boy with T lymphoblastic leukemia underwent allogeneic bone marrow transplantation from an HLA-matched sibling in the second remission phase. After the dose of cyclosporine (CyA) was reduced, dyspnea appeared on Day 117. CT revealed diffuse interstitial shadows on the bilateral lungs. The results of broncho-alveolar lavage suggested(More)
BACKGROUND In recent years the blood lactate level can be easily and quickly measured with a small amount of blood, and the availability of an arterial blood lactate level has been reported as an indicator of oxygen deficit in adults. To determine whether venous blood lactate level can serve as such a marker for determining the indications for transfusion,(More)
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