Publications by authors named "Toru Kikuchi"

A questionnaire survey on severe hypoglycemia (SH) in pediatric patients with diabetes was distributed to pediatric diabetes specialists and members of the Committee of Pediatric Diabetes in the Japan Diabetes Society. Thirty-three hospitals answered the questionnaire survey, and 17 had treated the eligible patients under 15 years of age, including 506 with type 1 diabetes and 302 with type 2 diabetes. Of these patients, 25 experienced SH from January 2017 to December 2021.

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: One of the important postoperative complications of endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA) is type 2 endoleak (T2EL). However, there is no well-established biomarker. We aimed to evaluate the validity of the neutrophil-lymphocyte ratio (NLR) as a predictor of T2EL.

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Purpose: To report the outcomes of below-the-knee (BK) bypass surgery using heparin-bonded expanded polytetrafluoroethylene (ePTFE) grafts, performed in two centers since its launch in Japan.

Methods: We conducted a retrospective analysis of databases from two medical centers, evaluating 51 limbs in 42 consecutive patients with peripheral arterial disease (PAD), who underwent BK bypass surgery using heparin-bonded ePTFE grafts between October, 2013 and April, 2023.

Results: Thirty-three limbs (64.

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Article Synopsis
  • G-CSF-producing lung tumors are rare and their imaging characteristics and effective treatments are not well understood; one case showed them mimicking a lung abscess.
  • In this case, a 61-year-old man with cough and fever was initially treated for a lung abscess but was later diagnosed with lung adenocarcinoma that had a MET exon 14 skipping mutation.
  • Treatment with tepotinib resulted in a reduction of the tumor size and G-CSF levels, indicating that tepotinib could be effective for patients with this specific mutation, even in G-CSF-producing lung cancers.
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Prevention of hypoglycemia is an important strategy for glycemic management in patients with type 1 diabetes mellitus (T1D). Hypoglycemia is difficult to recognize at night while sleeping, particularly when using multiple daily injection (MDI) insulin therapy rather than sensor-augmented insulin-pump therapy. Therefore, it is possible that patients with T1D are at higher risk of nocturnal hypoglycemia when insulin is administered using an MDI regimen.

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Blood pressure (BP) in children and adolescents is associated with their growth. BP is most strongly associated with height during height gain and with degree of obesity after reaching final height. BP in childhood and adolescence is correlated with BP in adulthood.

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  • A patient with autoantibody-negative type 1 diabetes was found to have a specific mutation (p.Leu168Pro) in the HNF1B gene, which contributed to their diabetic condition and kidney issues.
  • The study utilized various methods, like three-dimensional modeling and Western blotting, to analyze the mutation's effects, revealing that the mutated protein (Leu168Pro-HNF1B) had reduced expression compared to the normal version.
  • Ultimately, it was concluded that the Leu168Pro mutation leads to protein destabilization and loss of function, but does not exert a dominant-negative effect on the normal protein.
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The aim of this post-hoc subgroup analysis, which was based on data from the treat-to-target, 26-week, onset 7 trial, was to confirm the efficacy and safety of fast-acting insulin aspart (faster aspart) versus insulin aspart (IAsp), both in combination with basal insulin degludec, in children and adolescents from Japan with type 1 diabetes (T1D). Of the onset 7 trial population (1 to <18 years; N = 777), 66 participants from Japan (65 Asian and one non-Asian) were randomized to mealtime faster aspart (n = 24), post-meal faster aspart (n = 19), or IAsp (n = 23). Data for the subgroup from Japan were analysed descriptively.

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We investigated serum C-peptide immunoreactivity (CPR) levels in registered data from a multi-center collaborative nationwide type 1 diabetes study. The CPR levels were obtained from 576 and 409 children during the early registration (2013/2014) and late observation (2016/2017) periods, respectively. The percentages of children with a CPR < 0.

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Background: Recently, anthropometric indices in children with type 1 diabetes mellitus (T1DM) have begun to change.

Objective: To examine secular trends in patients' anthropometric indices.

Subjects: Japanese children with T1DM from the 1995, 2000, 2008 and 2013 cohorts of The Japanese Study Group of Insulin Therapy for Childhood and Adolescent Diabetes.

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In Japan, carnitine palmitoyltransferase II (CPTII) deficiency has been included as one of the primary target diseases in the expanded newborn mass screening program since 2018. However, many cases of the severe infantile hepatocardiomuscular form of CPTII deficiency showed severe neurodevelopmental delay or sudden death, which indicated that management of CPTII deficiency in the acute phase remains to be studied in detail. Herein, we discuss two cases diagnosed by newborn mass screening.

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A 63-year-old man was diagnosed with advanced sigmoid cancer of pT3, pN0, sM1c, sP3, fStage Ⅳ post-operation. After CAPOX plus Bmab as the first-line chemotherapy, he underwent IRIS plus Bmab as the second-line chemotherapy. After 1 course of IRIS plus Bmab, he was admitted to the hospital for fever, dyspnea, and general fatigue.

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A 74-year-old man with anemia visited our department. Esophagogastroduodenoscopy showed a type 2 lesion from the angulus to the antrum. Histopathological findings indicated gastric neuroendocrine carcinoma.

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For preterm and very low birthweight infants, the mother's own milk is the best nutrition. Based on the latest information for mothers who give birth to preterm and very low birthweight infants, medical staff should encourage and assist mothers to pump or express and provide their own milk whenever possible. If the supply of maternal milk is insufficient even though they receive adequate support, or the mother's own milk cannot be given to her infant for any reason, donor human milk should be used.

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Article Synopsis
  • Secretory breast carcinoma is the most common type of breast cancer found in children under 20, emphasizing the need for careful noninvasive diagnostic methods.
  • A case study of a 6-year-old girl revealed an invasive secretory breast carcinoma detected through a palpable mass, which led to a successful excision biopsy.
  • The study highlights the use of elastography as a noninvasive tool to assess tumor stiffness, suggesting that a high stiffness score (above 4) warrants further invasive diagnostic procedures to ensure accurate diagnosis of breast tumors in pediatric patients.
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Aims/introduction: We compared the results of testing for glutamic acid decarboxylase antibodies (GADAb) using a radioimmunoassay (RIA) and an enzyme-linked immunosorbent assay (ELISA) in individuals with childhood-onset type 1 diabetes mellitus.

Materials And Methods: Serum specimens were collected from 1,024 Japanese children (426 boys and 598 girls) in 2013. The median age at diagnosis was 7 years (0-18 years).

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The Dzyaloshinskii-Moriya (DM) interaction is an antisymmetric exchange interaction that is responsible for the emergence of chiral magnetism. The origin of the DM interaction, however, remains to be identified albeit the large number of studies reported on related effects. It has been recently suggested that the DM interaction is equivalent to an equilibrium spin current density originating from spin-orbit coupling, an effect referred to as the spin Doppler effect.

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Background Treatment for type 1 diabetes mellitus (T1DM) has greatly changed by the general use of insulin analogs and continuous subcutaneous insulin infusion (CSII). To investigate whether these advances have been translated into continued improvement in glycemic control in Japanese children and adolescents, we analyzed the registration data of the two consecutive recent cohorts of Japanese childhood-onset T1DM patients. Methods The registration data including hemoglobin A1c (HbA1c), hypoglycemia and insulin regimen were compared between the two cohorts (862 patients in the 2008 cohort and 1090 in the 2013 cohort).

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Omodysplasia-2 (OMOD2; OMIM%16475) is a rare autosomal dominant (AD) skeletal dysplasia characterized by shortened humeri, short first metacarpal, craniofacial dysmorphism (frontal bossing, depressed nasal bridge, bifid nasal tip, and long philtrum), and variable degrees of genitourinary anomalies. This clinical phenotype overlaps with that of AD type Robinow syndrome. Recently, a mutation in FZD2 encoding a Frizzled Class Receptor 2 has been identified in a family with AD omodysplasia (an affected girl and her affected mother).

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Background: Rising prevalence of childhood obesity and type 2 diabetes mellitus (T2DM) is an emerging public health issue.

Objectives: To investigate the association of maternal hyperglycemia exposure during pregnancy with obesity and abnormal glucose tolerance in offspring, and the age at occurrence.

Methods: We searched MEDLINE and EMBASE for observational studies on obesity and diabetes in offspring of diabetic mothers (gestational diabetes mellitus (GDM), type 1 diabetes mellitus (T1DM) and T2DM), and those on non-diabetic mothers.

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Article Synopsis
  • Mutations in genes associated with neonatal diabetes and maturity-onset diabetes have been found in children with autoantibody-negative type 1 diabetes (T1D).
  • In a study of 89 children, researchers identified 11 cases with significant genetic mutations and confirmed the absence of copy-number abnormalities.
  • The findings suggest a genetic overlap between autoantibody-negative T1D and monogenic diabetes, highlighting that mutation carriers generally have comparable health profiles to non-carriers, except for having a normal BMI at diagnosis.
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Objective: Hypophosphatasia (HPP) is a rare skeletal disease characterized by hypomineralization and low alkaline phosphatase activity. Asfotase alfa (AA) has been recently developed to treat HPP complications. This study evaluated its safety and efficacy in Japan.

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Aims/introduction: Although genome-wide association studies have identified more than 50 susceptibility genes for type 1 diabetes, low-frequency risk variants could remain unrecognized. The present study aimed to identify novel type 1 diabetes susceptibility genes by newly established methods.

Materials And Methods: We carried out whole-exome sequencing and genome-wide copy-number analysis for a Japanese family consisting of two patients with type 1 diabetes and three unaffected relatives.

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