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菅原 健二医学部附属病院 臨床研究推進センター助教
研究活動情報
■ 受賞- 2026年04月 医学生・研修医・専攻医の日本内科学会ことはじめ 2026東京, 優秀指導教官賞
- 2025年04月 医学生・研修医・専攻医の日本内科学会ことはじめ 2025大阪, 優秀指導教官賞(プレナリーセッション選出)
- 2010年05月 アジア糖尿病学会, 第2回アジア糖尿病学会 Travel Grant賞
- 2003年03月 北海道大学, 北海道大学クラーク賞
- Impaired glucose-dependent insulinotropic polypeptide (GIP)-induced insulin secretion is a characteristic feature of type 2 diabetes, whereas glucagon-like peptide-1 (GLP-1) responsiveness is relatively preserved. Our previous study proposed that chronic β-cell depolarization alters G protein signaling and contributes to this differential incretin responsiveness, but whether glucose lowering by sodium-glucose cotransporter 2 inhibition restores incretin responsiveness remains unclear. We investigated the effects of chronic luseogliflozin treatment on incretin responsiveness in two diabetic mouse models, KK-Ay mice with preserved residual β-cell function and streptozotocin/high-fat diet-induced diabetic mice with severe β-cell impairment. Luseogliflozin improved glycemic control in both models without marked changes in body weight or plasma insulin levels. In KK-Ay mice, luseogliflozin restored the glucose-lowering effect of GIP during GIP-preload glucose tolerance test. In contrast, this effect was not observed in streptozotocin/high-fat diet-induced diabetic mice, suggesting that preserved residual β-cell function is required for recovery of GIP responsiveness. Ex vivo analyses using isolated islets further showed that chronic luseogliflozin treatment altered incretin-stimulated insulin secretion, including attenuation of enhanced GLP-1 responsiveness under diabetic conditions. These findings suggest that luseogliflozin may partially normalize aberrant β-cell incretin signaling and restore GIP responsiveness when sufficient β-cell function remains.2026年07月, Physiological reports, 14(13) (13), e71016, 英語, 国際誌研究論文(学術雑誌)
- Insulinoma is a functional pancreatic neuroendocrine tumor that usually causes fasting hypoglycemia through inappropriate autonomous insulin secretion. However, some insulinomas show postprandial or stimulus-induced hypoglycemia, suggesting that some tumors retain the ability to respond to physiological stimuli. We examined four patients with confirmed insulinoma who showed different clinical patterns of hypoglycemia and integrated clinical stimulation tests with DNA microarray analysis. Insulin secretory dynamics were assessed using an oral glucose tolerance test, meal tolerance test, and glucagon stimulation test, as clinically indicated. Among the four cases, Case 1 showed no clear fasting hypoglycemia but developed hypoglycemia after meals and oral glucose loading, accompanied by marked insulin secretion. In this case, insulin or C-peptide increased markedly after glucose, meal, and glucagon stimulation. In contrast, the other three cases showed relatively weak insulin secretory responses to stimulation. During the fasting test, Cases 3 and 4 developed hypoglycemia early, whereas Case 2 showed a prolonged time to hypoglycemia. Transcriptomic analysis showed that, by hierarchical clustering, Case 1 was clearly separated from Cases 3 and 4, whereas Case 2 was relatively close to Case 1. Case 1 showed relatively preserved expression of genes involved in glucose sensing, ATP-sensitive potassium channel function, incretin/cAMP signaling, exocytosis, and β-cell differentiation. In contrast, cases with predominant fasting hypoglycemia showed higher expression of hexokinase 1 and stress-response genes. These findings suggest that clinical heterogeneity in insulinoma may reflect differences in β-cell-like stimulus-response mechanisms, glucose sensing, stress responses, and differentiation status.2026年06月, Endocrine connections, 英語, 国際誌研究論文(学術雑誌)
- AIMS/INTRODUCTION: Maturity-onset diabetes of the young (MODY) accounts for at least 1%-5% of diabetes cases and is usually caused by single gene variants. Accurate diagnosis of MODY is important for effective management, especially in young individuals who are lean and lack islet autoantibodies. Only a few MODY cases associated with multiple gene variants have been reported. We here describe a rare case of MODY with a pathogenic HNF1A variant and a coexisting NEUROD1 variant. MATERIALS AND METHODS: We conducted an extensive clinical analysis and explored the complex genetic architecture of the case in order to provide insight into the etiology of MODY. The candidate variants were identified by comprehensive whole-exome and Sanger sequencing, and their functional impact was assessed by analysis of their effects on the surface charge or structural stability of HNF1A and NEUROD1. RESULTS: The proband, a 21-year-old woman with early-onset diabetes, was found to harbor a pathogenic HNF1A p.Arg159Trp variant and a coexisting NEUROD1 p.Arg98Ser variant of uncertain significance. The NEUROD1 variant was also present in her mother and sister, both of whom manifested impaired glucose tolerance, but was absent in her father and brother. Structural analyses suggested that the HNF1A variant alters the surface charge of the protein, whereas the NEUROD1 variant may affect protein structural stability. CONCLUSION: We have identified an unusual case of MODY with a pathogenic HNF1A variant and a coexisting NEUROD1 variant of uncertain significance, and structural analyses suggested that the NEUROD1 variant may affect protein structure.2026年06月, Journal of diabetes investigation, 英語, 国内誌研究論文(学術雑誌)
- Insulin secretion from pancreatic β-cells is controlled by multiple mechanisms, including metabolic, electrophysiological, and second-messenger pathways. To identify insulinotropic small molecules, we performed in silico similarity screening using zatebradine, an HCN-channel ligand, as a structural query and functionally evaluated 26 hit compounds. Compound 2 showed the strongest insulinotropic activity and was used to synthesize the novel compound MDC134. MDC134 enhanced insulin secretion in MIN6-K8 cells and isolated mouse islets under stimulatory glucose conditions. MDC134 enhanced insulin secretion in isolated mouse islets and showed a tendency to increase insulin secretion in isolated non-diabetic human islets. Under high-glucose conditions, MDC134 increased intracellular Ca2+ levels, and nifedipine abolished its insulinotropic effect, indicating the involvement of voltage-dependent L-type Ca2+ channel-mediated Ca2+ influx. MDC134 also increased cellular cAMP content, although less potently than GLP-1. MDC134 treatment did not clearly affect glucose tolerance in C57BL/6J or ob/ob mice but significantly suppressed glucose elevation in β-cell-specific Kcnj11 knockout mice. These findings identify MDC134 as a novel glucose-dependent insulinotropic small molecule that enhances β-cell insulin secretion through Ca2+ influx and cAMP-associated amplification, and suggest that it may be useful for therapeutic strategies for diabetes characterized by impaired insulin secretion.2026年05月, Biochemical and biophysical research communications, 823, 153962 - 153962, 英語, 国際誌研究論文(学術雑誌)
- Insulin secretion from pancreatic β-cells is primarily regulated by glucose stimulation, while cAMP-mediated amplifying pathways also play an important role. In this study, we identified compound 42 (C42) as an insulinotropic hit compound through an in silico similarity search using the cAMP analog Sp-cAMPS as a query. Further structural development by chemical synthesis yielded CMR12, a novel derivative with enhanced insulinotropic activity. This class of compounds enhances insulin secretion in MIN6-K8 cells in a glucose concentration-dependent and compound concentration-dependent manner, and shows a modest suppression of glucose excursion during oral glucose tolerance testing in mice. CMR12 also exhibited strong insulinotropic activity in isolated mouse islets and preferentially enhanced the sustained second phase of glucose-stimulated insulin secretion in perfused mouse pancreas. These compounds did not clearly increase Epac2-related FRET responses, intracellular cAMP, or cytosolic Ca2+ levels. CE-MS-based metabolomic analysis of C42-treated MIN6-K8 cells revealed selective metabolic alterations, including increased levels of 2-oxoglutarate and multiple amino acids, without a detectable increase in ATP levels. These findings suggest that CMR12 enhances glucose-stimulated insulin secretion, particularly second-phase secretion, through a mechanism that is not primarily dependent on canonical cAMP- or Ca2+-mediated pathways. CMR12 may serve as a seed compound for developing new therapeutic strategies targeting impaired insulin secretion.2026年05月, Biochemical and biophysical research communications, 824, 153961 - 153961, 英語, 国際誌研究論文(学術雑誌)
- Background Metformin is associated with vitamin B12 deficiency, and we recently reported latent iron and copper deficiency among metformin users, suggesting a potential contribution to anemia risk. However, real-world evidence on hemoglobin trajectories after metformin initiation remains limited. We evaluated short- and long-term hemoglobin changes after metformin initiation compared with dipeptidyl peptidase-4 (DPP-4) inhibitors in Japanese patients with type 2 diabetes. Methods This single-center retrospective cohort study used electronic medical record data from Kobe University Hospital from January 2014 to June 2025. Short-term hemoglobin changes were defined as changes from Day 0 to Day 180, and long-term trajectories were evaluated from Day 0 to Day 1,826 (five years). Patients initiating metformin or a DPP-4 inhibitor were selected using predefined eligibility and exclusion criteria and matched by propensity scores. Hemoglobin changes over 180 days and up to five years were analyzed using multiple regression and mixed-effects models. Results The short-term cohort included 72 matched pairs, and the long-term cohort included 182 matched pairs. Hemoglobin decreased from 14.74 ± 0.22 to 14.39 ± 0.23 g/dL (mean ± SEM) from Day 0 to Day 180 in the metformin group, whereas no significant change was observed in the DPP-4 inhibitor group. Pre-initiation hemoglobin change, but not metformin dose, was independently associated with subsequent hemoglobin change. Over five years, annual hemoglobin slopes did not differ significantly between groups (-0.0572 vs. -0.0725 g/dL/year, p = 0.31). Older patients showed more negative annual hemoglobin slopes in both groups. Conclusions Metformin initiation was associated with a short-term hemoglobin decrease, whereas excess long-term decline was not observed in this cohort. Long-term changes were modest and age-related, supporting continued monitoring in older patients.2026年05月, Cureus, 18(5) (5), e109639, 英語, 国際誌研究論文(学術雑誌)
- AIMS/INTRODUCTION: Obesity is often accompanied by skeletal muscle atrophy, which aggravates insulin resistance and metabolic dysfunction. Chronic inflammation is implicated in this process, but the molecular mediators linking obesity-induced inflammation to muscle wasting have remained unclear. We investigated the role of the chemokine CXCL10 in skeletal muscle inflammation and atrophy induced by a high-fat diet (HFD). MATERIALS AND METHODS: Male C57BL/6J mice were fed an HFD or normal diet for 2 weeks and received either neutralizing antibodies to CXCL10 or control immunoglobulin G. Muscle morphology, macrophage infiltration, and gene expression were examined by histology, immunohistochemistry, reverse transcription-quantitative polymerase chain reaction analysis, and RNA sequencing. Cultured C2C12 myotubes were also treated with recombinant CXCL10 or lipopolysaccharide (LPS), with or without antibodies to CXCL10, for assessment of direct effects on myotube atrophy. RESULTS: HFD feeding upregulated Cxcl10 expression in skeletal muscle. It also induced fiber atrophy, macrophage infiltration, and increased expression of individual inflammation- or proteolysis-related genes in muscle, with these effects being attenuated by CXCL10 neutralization. Transcriptomic analysis further revealed a broad reversal of HFD-induced changes in gene expression related to protein catabolism and myofiber structure by anti-CXCL10 administration. Both CXCL10 and LPS reduced myotube diameter and increased expression of catabolism- or inflammation-related genes in cultured C2C12 myotubes, whereas CXCL10 blockade prevented these effects of LPS. CONCLUSIONS: CXCL10 mediates HFD-induced skeletal muscle atrophy by promoting inflammation and proteolysis. CXCL10 neutralization mitigates such muscle loss and may represent a novel therapeutic strategy to preserve skeletal muscle mass under metabolic stress.2026年02月, Journal of diabetes investigation, 英語, 国内誌研究論文(学術雑誌)
- 2025年09月, Diabetes, Obesity and Metabolism[査読有り]
- INTRODUCTION: The metal-chelating activity of metformin, which has long been known but of unclear clinical relevance, has recently been implicated in the pleiotropic effects, including antitumorigenic and anti-inflammatory actions, of the drug. However, whether metformin actually influences metal dynamics in humans has remained unknown. We here investigate whether metformin influences serum metal levels in individuals with type 2 diabetes. RESEARCH DESIGN AND METHODS: In this cross-sectional study, individuals with type 2 diabetes treated or not treated with metformin for at least 6 months were recruited. The primary outcome was the difference in serum copper concentration between metformin users and non-users. Secondary outcomes included differences in serum levels of iron, zinc, and vitamin B12 as well as in copper-related and iron-related parameters between the two groups. RESULTS: A total of 189 individuals (93 metformin users and 96 non-users) were analyzed. Metformin users showed significantly lower serum copper (16.0 vs 17.8 µmol/L, p<0.001) and iron levels (16.3 vs 17.3 µmol/L, p=0.02) and higher zinc levels (13.3 vs 12.5 µmol/L, p=0.01) compared with non-users. Copper-related and iron-related parameters for metformin users were consistent with latent deficiencies of these metals. Serum homocysteine levels (12.2 vs 11.2 µmol/L, p=0.03) were significantly higher, whereas vitamin B12 levels (338.7 vs 412.8 pmol/L, p<0.001) were significantly lower, in metformin users. Multiple regression analysis including variables that potentially influence metal dynamics identified metformin use as an independent predictor of serum copper (B = -1.54 µmol/L, p<0.001) and iron levels (B = -2.49 µmol/L, p=0.004). CONCLUSIONS: Metformin use was associated with reduced serum levels of copper and iron, as well as with increased serum zinc levels. These changes in metal dynamics may be related to the pharmacological effects of this widely administered drug.2025年08月, BMJ open diabetes research & care, 13(5) (5), 英語, 国際誌研究論文(学術雑誌)
- Cases of hypercortisolemia without physical signs of Cushing's syndrome (CS), suggestive of nonneoplastic hypercortisolism (NNH), often remain partially unexplained. We present a unique case that was initially misdiagnosed as ACTH-dependent CS due to abnormal laboratory findings, despite the absence of Cushingoid features. Molecular and functional analyses ultimately led to a diagnosis of glucocorticoid resistance syndrome (GRS). A 54-year-old female patient underwent endocrinological evaluation for an adrenal incidentaloma associated with hypokalemia, which revealed hypercortisolemia. Subsequent endocrinological testing was consistent with ACTH-dependent CS; however, no Cushingoid features were observed on physical examination, suggesting NNH. As no apparent cause of NNH was identified, we hypothesized a functional disorder of the glucocorticoid receptor (GR) and performed a genetic analysis of NR3C1, which encodes GR. This revealed a novel germline heterozygous variant, p.L670P, located in the ligand-binding domain of the GR. Structural analyses revealed that Leu670 forms a hydrophobic core near the ligand-binding pocket. The p.L670P variant disrupted the secondary structure, suggesting a potential compromise in the structural stability of the ligand-binding site. In vitro experiments showed that this GR variant failed to suppress the transcriptional activity of the proopiomelanocortin promoter following dexamethasone administration. These findings confirmed that the patient had a loss-of-function variant in GR, leading to a diagnosis of GRS and ruling out ACTH-dependent CS. This case highlights that GRS may underline cases of NNH without a clear etiology, and genetic testing for GR can aid in its diagnosis.2025年07月, Journal of the Endocrine Society, 9(7) (7), bvaf097, 英語, 国際誌研究論文(学術雑誌)
- AIMS/INTRODUCTION: Phosphatidylinositol 3-kinase (PI3K) plays a key role in insulin signaling, and mutations in PIK3R1, which encodes a regulatory subunit (p85α) of this enzyme, are responsible for SHORT syndrome, which is associated with insulin-resistant diabetes. We here describe four Japanese individuals from three families with SHORT syndrome who harbor either a common or a previously unknown mutation in PIK3R1 as well as provide an in silico functional analysis of the mutant proteins. MATERIALS AND METHODS: Gene sequencing was performed to identify PIK3R1 mutations. 3D structural analysis of wild-type and mutant p85α proteins was performed by homology modeling, and structural optimization and molecular dynamics simulations confirmed stable trajectories. Docking simulations of p85α with a phosphopeptide were also conducted. RESULTS: We identified two families with a common mutation (c.1945C>T, p.R649W) and one family with a previously unidentified mutation (c.1957A>T, p.K653*) of PIK3R1. In silico modeling revealed that both mutations impaired binding of p85α to phosphopeptide, with K653* resulting in the loss of amino acids that contribute to such binding. Docking simulations showed a significant loss of docking energy for the R649W mutant compared with the wild-type protein (P = 0.00329). CONCLUSIONS: The four cases of SHORT syndrome were associated with early-onset diabetes and intrauterine growth retardation, with the identified mutations likely disrupting the binding of p85α to phosphopeptide and thereby impairing insulin signaling. One case uniquely manifested diabetes without insulin resistance, emphasizing the need for further study of the clinical variability of SHORT syndrome, especially with regard to its associated diabetes.2025年05月, Journal of diabetes investigation, 英語, 国内誌研究論文(学術雑誌)
- Piezo1, a mechanosensitive ion channel that opens in response to mechanical stimuli, is widely expressed among mammalian cell types, and regulates a diverse range of physiological processes. Although evidence has suggested potential clinical benefit of Piezo1 activation for various conditions, the safety and efficacy of such activation in living animals have remained unclear. To investigate the therapeutic potential of Piezo1 activation, we here generated genetically modified mouse models in which Piezo1 is overexpressed either specifically in skeletal muscle or systemically in response to tamoxifen treatment in adult animals. Cast immobilization induced a reduction in both muscle mass and the abundance of Piezo1 mRNA in skeletal muscle of the affected limbs in control mice. Overexpression of Piezo1 in skeletal muscle prevented the immobilization-induced reduction both in soleus muscle mass and in the corresponding cross-sectional area of myofibers, suggesting the potential benefit of Piezo1 activation for prevention of immobilization-induced muscle atrophy. Furthermore, mice with systemic overexpression of Piezo1 showed no apparent abnormalities in growth or general activity. Red blood cells from these mice manifested slight resistance to hypoosmolarity-induced hemolysis, and the animals did not develop apparent hemolytic anemia. Our findings demonstrate promising efficacy and safety of Piezo1 activation in living animals and thereby highlight the therapeutic potential of targeting the Piezo1 signaling pathway.2025年05月, The Kobe journal of medical sciences, 71(1) (1), E31-E40, 英語, 国内誌研究論文(学術雑誌)
- BACKGROUND: Through a retrospective analysis of existing FDG PET-MRI images, we recently demonstrated that metformin increases the accumulation of FDG in the intestinal lumen, suggesting that metformin stimulates glucose excretion into the intestine. However, the details of this phenomenon remain unclear. We here investigate the detailed dynamics of intestinal glucose excretion, including the rate of excretion and the metabolism of excreted glucose, in both the presence and absence of metformin. METHODS: We quantified intestinal glucose excretion using newly developed FDG PET-MRI-based bioimaging in individuals with type 2 diabetes, both treated and untreated with metformin. The metabolism of excreted glucose was analyzed through mass spectrometry of fecal samples from mice intravenously injected with 13C-labeled glucose. RESULTS: Continuous FDG PET/MRI image taking reveals that FDG is initially observed in the jejunum, suggesting its involvement in FDG excretion. Metformin-treated individuals excrete a significant amount of glucose (~1.65 g h-1 per body) into the intestinal lumen. In individuals not receiving metformin, a certain amount of glucose (~0.41 g h-1per body) is also excreted into the intestinal lumen, indicating its physiological importance. Intravenous injection of 13C-labeled glucose in mice increases the content of 13C in short-chain fatty acids (SCFAs) extracted from feces, and metformin increased the incorporation of 13C into SCFAs. CONCLUSIONS: A previously unrecognized, substantial flux of glucose from the circulation to the intestinal lumen exists, which likely contributes to the symbiosis between gut microbiota and the host. This flux represents a potential target of metformin's action in humans.2025年03月, Communications medicine, 5(1) (1), 44 - 44, 英語, 国際誌研究論文(学術雑誌)
- Japan Endocrine Society, 2025年, Endocrine Journal研究論文(学術雑誌)
- AIMS/INTRODUCTION: Imeglimin is a new antidiabetic drug structurally related to metformin. Despite this structural similarity, only imeglimin augments glucose-stimulated insulin secretion (GSIS), with the mechanism underlying this effect remaining unclear. Given that glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) also enhance GSIS, we examined whether these incretin hormones might contribute to the pharmacological actions of imeglimin. MATERIALS AND METHODS: Blood glucose and plasma insulin, GIP, and GLP-1 concentrations were measured during an oral glucose tolerance test (OGTT) performed in C57BL/6JJcl (C57BL/6) or KK-Ay/TaJcl (KK-Ay) mice after administration of a single dose of imeglimin with or without the dipeptidyl peptidase-4 inhibitor sitagliptin or the GLP-1 receptor antagonist exendin-9. The effects of imeglimin, with or without GIP or GLP-1, on GSIS were examined in C57BL/6 mouse islets. RESULTS: Imeglimin lowered blood glucose and increased plasma insulin levels during an OGTT in both C57BL/6 and KK-Ay mice, whereas it also increased the plasma levels of GIP and GLP-1 in KK-Ay mice and the GLP-1 levels in C57BL/6 mice. The combination of imeglimin and sitagliptin increased plasma insulin and GLP-1 levels during the OGTT in KK-Ay mice to a markedly greater extent than did either drug alone. Imeglimin enhanced GSIS in an additive manner with GLP-1, but not with GIP, in mouse islets. Exendin-9 had only a minor inhibitory effect on the glucose-lowering action of imeglimin during the OGTT in KK-Ay mice. CONCLUSIONS: Our data suggest that the imeglimin-induced increase in plasma GLP-1 levels likely contributes at least in part to its stimulatory effect on insulin secretion.2023年06月, Journal of diabetes investigation, 14(6) (6), 746 - 755, 英語, 国内誌[査読有り]研究論文(学術雑誌)
- The predicted structures of major proteins involved in the insulin signaling pathway obtained from the AlphaFold Protein Structure Database.2023年02月, Journal of diabetes investigation, 英語, 国内誌[査読有り][招待有り]
- Imeglimin is a recently launched antidiabetic drug structurally related to metformin. To provide insight into the pharmacological properties of imeglimin, we investigated its effects on hepatocytes and compared them with those of metformin. The effects of imeglimin on mitochondrial function in HepG2 cells or mouse primary hepatocytes were examined with an extracellular flux analyzer and on gene expression in HepG2 cells by comprehensive RNA-sequencing analysis. The effects of the drug on AMPK activity in HepG2 cells, mouse primary hepatocytes, and mouse liver were also examined. Treatment of HepG2 cells or mouse primary hepatocytes with imeglimin reduced the oxygen consumption rate coupled to ATP production. Imeglimin activated AMPK in these cells whereas the potency was smaller than metformin. Bolus administration of imeglimin in mice also activated AMPK in the liver. Whereas the effects of imeglimin and metformin on gene expression in HepG2 cells were similar overall, the expression of genes encoding proteins of mitochondrial respiratory complex III and complex I was upregulated by imeglimin but not by metformin. Our results suggest that imeglimin and metformin exert similar pharmacological effects on mitochondrial respiration, AMPK activity, and gene expression in cultured hepatocytes, whereas the two drugs differ in their effects on the expression of certain genes related to mitochondrial function.2023年01月, Scientific reports, 13(1) (1), 746 - 746, 英語, 国際誌[査読有り]研究論文(学術雑誌)
- Formation of the PEN2-ATP6AP1 complex induced by the binding of metformin to PEN2 results in the inhibition of v-ATPase activity and in the recruitment of AXIN/LKB1 to lysosomes, which in turn results in the phosphorylation and activation of AMPK.2022年10月, Journal of diabetes investigation, 英語, 国内誌[査読有り][招待有り]研究論文(学術雑誌)
- Variant hemoglobin is often detected during the diagnosis and treatment of diabetes mellitus. We here describe a case of α2-chain variant hemoglobin (Hb Chad) that was identified as a result of differences in HbA1cs values determined by different assays. HbA1c measured by immunoassay was thus falsely high, whereas that measured by high-performance liquid chromatography (HPLC) was slightly low. Sequencing analysis revealed a heterozygous GAG (glutamic acid) → AAG (lysine) mutation at amino acid position 23 of the α2-globin gene. This residue is located at the surface of the α-chain in the crystal structure of hemoglobin. The high HbA1c value determined by immunoassay might have been the result of increased antigenicity of the variant hemoglobin, whereas the low value measured by HPLC reflected differential fractionation of the variant relative to the wild-type protein. Hb Chad has been reported in only three cases to date, and HbA1c was measured for the first time. This is the first case where falsely high HbA1c measured by immunoassay due to increased antigenicity in α-chain variant hemoglobin. This case highlights the importance of comparison with other parameters related to plasma glucose such as glycated albumin if an HbA1c abnormality is suspected. Supplementary Information: The online version contains supplementary material available at 10.1007/s13340-021-00529-y.Springer Science and Business Media LLC, 2022年01月, Diabetology international, 13(1) (1), 330 - 335, 英語, 国内誌[査読有り]研究論文(学術雑誌)
- Imidazole propionate inhibits metformin action in a manner dependent on a p38γ-Akt-AMPK axis.2021年05月, Journal of diabetes investigation, 12(8) (8), 1319 - 1321, 英語, 国内誌[査読有り][招待有り]研究論文(学術雑誌)
- AIM: To investigate the relationships between various clinical variables and the metformin-induced accumulation of fluorodeoxyglucose (FDG) in the intestine, with distinction between the intestinal wall and lumen, in individuals with type 2 diabetes who were receiving metformin treatment and underwent 18 F-labelled FDG ([18 F]FDG) positron emission tomography (PET)-MRI. MATERIALS AND METHODS: We evaluated intestinal accumulation of [18 F]FDG with both subjective (a five-point visual scale determined by two experienced radiologists) and objective analyses (measurement of the maximum standardized uptake value [SUVmax ]) in 26 individuals with type 2 diabetes who were receiving metformin and underwent [18 F]FDG PET-MRI. [18 F]FDG accumulation within the intestinal wall was discriminated from that in the lumen on the basis of SUVmax . RESULTS: SUVmax for the large intestine was correlated with blood glucose level (BG) and metformin dose, but not with age, body mass index, HbA1c level or estimated glomerular filtration rate (eGFR). SUVmax for the small intestine was not correlated with any of these variables. Visual scale analysis yielded essentially similar results. Metformin dose and eGFR were correlated with SUVmax for the wall and lumen of the large intestine, whereas BG was correlated with that for the wall. Multivariable analysis identified metformin dose as an explanatory factor for SUVmax in the wall and lumen of the large intestine after adjustment for potential confounders including BG and eGFR. CONCLUSIONS: Metformin dose is an independent determinant of [18 F]FDG accumulation in the wall and lumen of the large intestine in individuals treated with this drug.2021年03月, Diabetes, obesity & metabolism, 23(3) (3), 692 - 699, 英語, 国際誌[査読有り]研究論文(学術雑誌)
- OBJECTIVE: Positron emission tomography (PET)-computed tomography has revealed that metformin promotes the intestinal accumulation of [18F]fluorodeoxyglucose (FDG), a nonmetabolizable glucose derivative. It has remained unknown, however, whether this accumulation occurs in the wall or intraluminal space of the intestine. We here addressed this question with the use of [18F]FDG PET-MRI, a recently developed imaging method with increased accuracy of registration and high soft-tissue contrast. RESEARCH DESIGN AND METHODS: Among 244 individuals with type 2 diabetes who underwent PET-MRI, we extracted 24 pairs of subjects matched for age, BMI, and HbA1c level who were receiving treatment with metformin (metformin group) or were not (control group). We evaluated accumulation of [18F]FDG in different portions of the intestine with both a visual scale and measurement of maximum standardized uptake value (SUVmax), and such accumulation within the intestinal wall or lumen was discriminated on the basis of SUVmax. RESULTS: SUVmax of the jejunum, ileum, and right or left hemicolon was greater in the metformin group than in the control group. [18F]FDG accumulation in the ileum and right or left hemicolon, as assessed with the visual scale, was also greater in the metformin group. SUVmax for the intraluminal space of the ileum and right or left hemicolon, but not that for the intestinal wall, was greater in the metformin group than in the control group. CONCLUSIONS: Metformin treatment was associated with increased accumulation of [18F]FDG in the intraluminal space of the intestine, suggesting that this drug promotes the transport of glucose from the circulation into stool.2020年07月, Diabetes Care, 43(7) (7), 1 - 7, 英語, 国際誌[査読有り]研究論文(学術雑誌)
- 2019年12月, Journal of Diabetes InvestigationRelation between metformin use and vitamin B12 status in patients with type 2 diabetes in Japan[査読有り]
- Here, we report phenotypic differences and similarities of monozygotic twins with maturity-onset diabetes of the young type 5 harboring a partial deletion of chromosome 17q12. The proband and her twin sister manifested complete aplasia and marked hypoplasia, respectively, of the body and tail of the pancreas. Whereas both twins showed marked hypoplasia of the right kidney and multiple cysts in both kidneys, only the proband's sister showed hydronephrosis in the left kidney. The proband had profound defects in insulin and glucagon secretion, as well as mild renal dysfunction, whereas her sister had pronounced renal dysfunction accompanied by mild defects in insulin and glucagon secretion. Both twins manifested hypomagnesemia and hyperuricemia, but no apparent liver dysfunction or intellectual disability. The severity of renal and pancreatic defects differed between monozygotic twins with maturity-onset diabetes of the young type 5, suggesting that the phenotypes of this condition are determined not solely by genetic factors.2019年07月, Journal of diabetes investigation, 10(4) (4), 1112 - 1115, 英語, 国内誌[査読有り]研究論文(学術雑誌)
- Mutations of the hepatocyte nuclear factor 4α (HNF4α) gene give rise to maturity-onset diabetes of the young type 1. Although many such mutations have been identified in affected individuals, part of these mutations has been characterized with regard to their pathological relevance. We here identified a missense mutation (c.773G>A, p.R258H) of HNF4A in a mother and daughter with early-onset diabetes and impaired insulin secretion. In silico simulation and in vitro luciferase reporter analyses showed that the mutation impairs the stability of self-dimerization and the transactivation activity of HNF4α. Although arginine-258 does not appear to participate directly in dimerization, its mutation alters the electrostatic surface potential of the dimer interface. Our results thus suggest that this mutation impairs the function of HNF4α and thereby contributes to the pathogenesis of maturity-onset diabetes of the young type 1.2018年10月, Journal of Diabetes Investigation, 10(3) (3), 680 - 684, 英語, 国内誌[査読有り]研究論文(学術雑誌)
- 2017年09月, Diabetes, obesity & metabolism, 19, 22 - 29, 英語[査読有り]
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- 2013年10月, SCIENCE SIGNALING, 6(298) (298), ra94, 英語[査読有り]研究論文(学術雑誌)
- 2012年10月, JOURNAL OF DIABETES INVESTIGATION, 3(5) (5), 464 - 467, 英語[査読有り]研究論文(学術雑誌)
- 2012年02月, JOURNAL OF DIABETES INVESTIGATION, 3(1) (1), 70 - 79, 英語[査読有り]研究論文(学術雑誌)
- THE JAPAN DIABETES SOCIETY, 2012年, Journal of the Japan Diabetes Society, 55(7) (7), 477 - 482, 日本語[査読有り]
- 2009年04月, GENES TO CELLS, 14(4) (4), 445 - 456, 英語[査読有り]研究論文(学術雑誌)
- 2005年12月, JOURNAL OF BIOLOGICAL CHEMISTRY, 280(48) (48), 40058 - 40065, 英語[査読有り]研究論文(学術雑誌)
- 2004年07月, GENES TO CELLS, 9(7) (7), 611 - 618, 英語[査読有り]研究論文(学術雑誌)
- 2003年08月, ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY, 59(Pt 8) (Pt 8), 1464 - 1465, 英語[査読有り]研究論文(学術雑誌)
- 83 (増刊号3), 136-140,, 2025年各種血糖降下薬 (インスリン以外) の作用, 使用上の注意など (7) イメグリミン
- 分担執筆, ビグアナイド薬, 南江堂, 2019年糖尿病最新の治療2019-2021
- 分担執筆, 最新論文レビューメトホルミンは未治療2型糖尿病患者の腸内細菌叢を変化させ、治療効果に寄与する。, メディカルレビュー社, 2018年05月DIABETES UPDATE 7巻2号
- 分担執筆, インスリン分泌, 西村書店, 2015年05月糖尿病学
- 分担執筆, インスリン分泌促進薬の作用メカニズム, メディカルレビュー社, 2014年10月Diabetes Frontier 25巻5号
- 分担執筆, インスリン分泌の生理学、インスリン分泌のStimulatorとAmplifier, 東京医学社, 2012年12月成人病と生活習慣病 42巻12号
- 分担執筆, インクレチン時代の糖尿病学, 南江堂, 2011年10月臨床雑誌『内科』108巻4号
- 第39回日本糖尿病・肥満動物学会年次学術集会, 2026年02月, 日本語, 名古屋, 日本国, 国内会議運動による筋量増加における機械刺激感受性イオンチャネルPiezo1の機能解析
- 日本臨床試験学会第17回学術集会総会 ランチョンセミナー6, 2026年02月, 日本語, 神戸, 日本国, 国内会議SIMPRESEARCH®を用いたReal World Data研究フィージビリティ評価の実践と研究DX基盤としての展開[招待有り]口頭発表(招待・特別)
- 第62回日本糖尿病学会近畿地方会, 2025年11月, 日本語, 大阪, 日本国, 国内会議肥満症を伴う2型糖尿病合併妊娠における妊娠初期から産後までの当院でのマネジメントについて
- 第40回日本糖尿病合併症学会, 2025年11月, 日本語, 東京, 日本国, 国内会議モデル動物・培養細胞1 膵β細胞からのインスリン分泌におけるMyocyte-specific enhancer factor 2Dの役割口頭発表(一般)
- 第46回日本肥満学会・第43回日本肥満症治療学会学術集会, 2025年10月, 日本語, 岡山, 日本国, 国内会議肝細胞のPiezo1活性化によるMASLD進展抑制効果の解析口頭発表(一般)
- 第25回日本糖尿病インフォマティクス学会年次学術集会, 2025年08月, 日本語, 佐賀, 日本国, 国内会議公開RNA-seqデータのメタ解析およびメンデルランダム化解析による健康アウトカムに関連する運動依存性遺伝子の探索口頭発表(一般)
- 第11回日本筋学会学術総会, 2025年08月, 日本語, 宮城, 日本国, 国内会議運動による筋量増加における機械刺激感受性イオンチャネルPiezo1の機能解析
- 2025 Symposium on Adipose Regulation and Metabolism (Hohhot, China), 2025年07月Similarities and Differences in the Intestinal Actions of Metformin and Imeglimin[招待有り]
- 第30回日本小児・思春期糖尿病学会年次学術集会, 2025年07月, 日本語, 東京, 日本国, 国内会議イメグリミンとDPP-4阻害薬の併用が血糖マネジメントの改善につながったMODY3の一例口頭発表(一般)
- 第98回日本内分泌学会学術総会, 2025年06月, 日本語, 千葉, 日本国, 国内会議運動による筋量増加における機械刺激感受性イオンチャネルPiezo1の機能解析
- 第68回日本糖尿病学会年次学術集会, 2025年05月, 日本語, 岡山, 日本国, 国内会議インスリンアナログ製剤の違いによるアミロイド形成の要因と特性解析口頭発表(一般)
- 第68回日本糖尿病学会年次学術集会, 2025年05月, 日本語, 岡山, 日本国, 国内会議膵β細胞からのインスリン分泌におけるMyocyte-specific enhancer factor 2Dの役割口頭発表(一般)
- 第68回日本糖尿病学会年次学術集会, 2025年05月, 日本語, 岡山, 日本国, 国内会議1細胞RNA-Seq解析によるメトホルミンとイメグリミンの腸管作用の検討口頭発表(一般)
- 第68回日本糖尿病学会年次学術集会, 2025年05月, 日本語, 岡山, 日本国, 国内会議メトホルミンが遷移金属の生体動態に及ぼす検討口頭発表(一般)
- 第68回日本糖尿病学会年次学術集会, 2025年05月, 日本語, 岡山, 日本国, 国内会議公開データベースを用いたin silico解析による運動依存性新規経路探索の試み口頭発表(一般)
- 第68回日本糖尿病学会年次学術集会 シンポジウム15, 2025年05月イメグリミンの膵外作用の基礎的検討~肝・腸管作用を中心に~[招待有り]
- 医学生・研修医・専攻医の日本内科学会ことはじめ2025大阪, 2025年04月, 日本語, 大阪, 日本国, 国内会議若年発症糖尿病におけるHNF1A新規変異の同定と変異体3次元構造からの発症機序の解析口頭発表(一般)
- 第60回日本臨床分子医学会学術集会, 2025年04月, 日本語, 大阪, 日本国, 国内会議運動による筋量増加における機械刺激感受性イオンチャネルPiezo1の機能解析口頭発表(一般)
- AASD2025, 2025年03月, 英語, Taiwan, 台湾, 国際会議Metformin Treatment Is Associated with a Decrease in Serum Copper and Iron Levels in Individuals with Type 2 Diabetesポスター発表
- 17th Scientific Meeting of the Asian Association for the Study of Diabetes, 2025年03月, 英語, Taiwan, 台湾, 国際会議Myofiber Piezo1 regulates muscle hypertrophy and metabolism in response to exercise口頭発表(一般)
- 第35回分子糖尿病学シンポジウム, 2024年12月, 日本語, 熊本, 日本国, 国内会議運動における機械刺激感受性イオンチャネルPiezo1を介した筋肥大、代謝制御機構の解明口頭発表(一般)
- 第61回日本糖尿病学会近畿地方会, 2024年10月, 日本語, 大阪, 日本国, 国内会議免疫チェックポイント阻害薬による1型糖尿病に対する当院での取り組み口頭発表(一般)
- 60th EASD Annual Meeting of the European Association for the Study of Diabetes (Madrid, Spain), 2024年09月Myofiber Piezo1 regulates muscle hypertrophy and metabolism in response to exercise
- 第67回日本糖尿病学会年次学術集会, 2024年05月, 日本語, 東京, 日本国, 国内会議糖代謝制御機構における消化管グルコース排泄の意義についての解析
- 第67回日本糖尿病学会年次学術集会, 2024年05月, 英語, 東京, 日本国, 国内会議The role of gut-muscle interaction in muscle mass regulationシンポジウム・ワークショップパネル(指名)
- Cell Symposia: Exercise Metabolism, 2024年05月, 英語, Lisbon, ポルトガル共和国, 国際会議Metformin prevents immobilization-induced muscle atrophy via intestinal actionsポスター発表
- Seoul Symposium on Obesity and Diabetes, 2024年04月, 英語, Seoul, 大韓民国, 国際会議The role of gut-muscle interaction in muscle mass regulation口頭発表(一般)
- 第67回日本糖尿病学会年次学術集会, 2024年04月, 日本語, 日本国, 国内会議メトホルミンに調節される腸管腔へのグルコース排泄
- 59th EASD Annual Meeting (Hamburg, Germany)Similarity and difference of intestinal actions of metformin and imeglimin
- The 50th European Muscle Conference, 2023年09月, 英語, Florence, イタリア共和国, 国際会議Effects of Imeglimin on Mitochondrial Function, AMPK Activation, and Gene Expression in Hepatocytes and Myocytesポスター発表
- The 83rd American Diabetes Association Scientific Sessions, 2023年06月, 英語, San Diego, アメリカ合衆国, 国際会議Quantitative analysis of metformin-induced glucose excretion in the intestineポスター発表
- 第66回日本糖尿病学会年次学術集会, 2023年05月, 英語, 鹿児島, 日本国, 国内会議The effects of imeglimin on incretin secretion口頭発表(一般)
- 第66回日本糖尿病学会年次学術集会, 2023年05月, 日本語, 鹿児島, 日本国, 国内会議肥満は腸管内腔グルコース排泄を増強する口頭発表(一般)
- 第58回日本臨床分子医学会学術集会, 2023年04月, 日本語, 東京, 日本国, 国内会議肝細胞におけるイメグリミンのミトコンドリア機能、AMPK活性化、遺伝子発現における効果ポスター発表
- 第95回日本内分泌学会学術総会, 2022年06月, 日本語, 別府, 日本国, 国内会議新規FDG-PET/MRI撮像法の開発によるメトホルミンの消化管ブドウ糖排泄作用の定量的分析口頭発表(一般)
- 第95回日本内分泌学学会学術総会, 2022年06月, 日本語, 別府, 日本国, 国内会議肝臓におけるイメグリミンとメトホルミンの作用の類似性と相違性口頭発表(一般)
- 第65回日本糖尿病学会年次学術集会, 2022年05月, 日本語, 神戸, 日本国, 国内会議新規FDG-PET/MRI撮像法の開発によるメトホルミン服用者における腸管ブドウ糖排泄の定量的解析口頭発表(一般)
- 第65回日本糖尿病学会年次学術集会, 2022年05月, 日本語, 神戸, 日本国, 国内会議耐糖能の変遷を長期間観察し得た反応性低血糖を呈するA型インスリン抵抗症の1例口頭発表(一般)
- 第65回日本糖尿病学会年次学術集会, 2022年05月, 日本語, 神戸, 日本国, 国内会議PET-MRI連続撮像法によるメトホルミン依存性腸管FDG排泄動態の解析口頭発表(一般)
- 第65回日本糖尿病学会年次学術集会, 2022年05月, 日本語, 神戸, 日本国, 国内会議肝臓におけるイメグリミンとメトホルミンの作用の類似性と相違性口頭発表(一般)
- 第65回日本糖尿病学会年次学術集会, 2022年05月, 日本語, 神戸, 日本国, 国内会議HNF1AとNEUROD1の変異を認めた若年発症糖尿病の1例口頭発表(一般)
- 第42回日本肥満学会・第39回日本肥満症治療学会学術集会, 2022年03月, 日本語, 横浜, 日本国, 国内会議PET-MRI連続撮像法によるメトホルミン依存性腸管FDG排泄動態の解析シンポジウム・ワークショップパネル(指名)
- 第42回日本肥満学会, 2022年03月, 日本語, 日本国, 国内会議新規PET-MRI撮像法の開発によるメトホルミンによる腸管FDG集積の解析
- American Diabetes Association -80th Scientific Sessions, 2020年06月, 英語, Chicago (Online), アメリカ合衆国, 国際会議Enhanced Release of Glucose into the Intraluminal Space of the Intestine Associated with Metformin Treatment as Revealed by 18F FDG-Based PET-MRIポスター発表
- 第61回日本糖尿病学会年次学術集会, 2018年05月, 日本語, 日本国, 国内会議メトホルミン内服患者におけるビタミンB12欠乏の実態調査
- 第27回臨床内分泌代謝Update, 2017年11月, 日本語, 神戸, 日本国, 国内会議手術によって寛解後30年目に再発を認めた Cushing病の一例ポスター発表
- 第34回日本糖尿病・妊娠学会年次学術集会, 2017年11月, 日本語, 横浜, 日本国, 国内会議1型糖尿病合併妊娠におけるCSIIとSensor Augmented Pump(SAP)療法のインスリン必要量の変化についての検討
- Society of Environmental Toxicology and Chemistry Conference (Brussel, Belgium), 2017年11月Chronic arsenic exposure impairs pancreatic beta cell function.
- 第54回日本糖尿病学会近畿地方会, 2017年11月, 日本語, 大阪, 日本国, 国内会議持効型インスリンが不要となったインスリン抗体陽性1型糖尿病の1例
- 第54回日本糖尿病学会近畿地方会, 2017年11月, 日本語, 大阪, 日本国, 国内会議インスリン分泌不全を基盤としてケトーシス発症し、MODY5の診断に至った一卵性双生児の例
- 第54回日本糖尿病学会近畿地方会, 2017年11月, 日本語, 日本国, 国内会議新規変異型HNF4AによるMODY1の症例
- 第15回1型糖尿病研究会, 2017年11月, 日本語, 岩手, 日本国, 国内会議持効型インスリンが不要となった1型糖尿病の一例
- 第60回日本糖尿病学会年次学術集会, 2017年05月, 日本語, 名古屋, 日本国, 国内会議1型糖尿病合併妊娠におけるCSIIとSensor Augmented Pump(SAP)療法のインスリン必要量の変化についての検討口頭発表(一般)
- 第60回日本糖尿病学会年次学術集会, 2017年05月, 日本語, 名古屋, 日本国, 国内会議インスリン治療中の2型糖尿病患者におけるSGLT2阻害薬投与によるインスリン減量効果についての検討ポスター発表
- The 9th Scientific Meeting of Asian Association for the Study of Diabetes (Nagoya, Japan), 2017年05月Chronic arsenic exposure impairs pancreatic beta cell function.
- 第60回日本糖尿病学会年次学術集会, 2017年05月, 日本語, 日本国, 国内会議マイクロアレイ解析による、インスリノーマの分泌特性を規定する遺伝子発現量の検討
- 2nd Joint Meeting of the EASD Islet Study Group & Beta Cell Workshop, 2017年05月Approaches to identification of novel small molecules that can be insulin secretagogues.[招待有り]
- 第90回日本内分泌学会学術総会, 2017年04月, 日本語, 京都, 日本国, 国内会議周期性が疑われた嗅神経芽細胞腫による異所性ACTH症候群の一例口頭発表(一般)
- 第26回臨床内分泌代謝Update, 2016年11月, 日本語, 大宮, 日本国, 国内会議低K、低アルドステロン血症、低身長を呈した 若年性高血圧の一例ポスター発表
- 第26回臨床内分泌代謝Update, 2016年11月, 日本語, 大宮, 日本国, 国内会議性同一性障害を伴うコルチゾール、アンドロゲン産生腫瘍の1例ポスター発表
- 第53回日本糖尿病学会近畿地方会, 2016年11月, 日本語, 大阪, 日本国, 国内会議デュラグルチド導入後の血糖変動に与える短期効果についての検討口頭発表(一般)
- 第53回日本糖尿病学会近畿地方会, 2016年11月, 日本語, 大阪, 日本国, 国内会議SGLT2阻害薬導入後に著明な高グルカゴン血症を呈した一例口頭発表(一般)
- The 11th IDF-WPR Congress and 8th AASD Scientific Meeting (Taipei, Taiwan), 2016年10月Trans-S-1-propenyl-l-cysteine sulfoxide from Allium cepa (onions) has appreciable antidiabetic potential in streptozotocin-induced diabetic mice
- The 76th scientific sessions of the American Diabetes Association (New Orleans, USA), 2016年06月Antidiabetic effect of trans-S-1-propenyl-L-cysteine sulfoxide from Allium cepa.
- The 64th ASMS Conference on Mass Spectrometry and Allied Topics (San Antonio, USA), 2016年06月Evaluation of the pharmacokinetics of a novel anti-diabetic agent using conventional LC/MS/MS.
- 第59回日本糖尿病学会年次学術集会, 2016年05月, 日本語, 日本国, 国内会議KATPチャネルを標的とした新規低分子化合物の同定とその特性解析
- 17th International Group on Insulin Secretion Conference (Nice, France), 2016年04月Chronic Arsenic Exposure Impairs Pancreatic Function.
- 16th International Group on Insulin Secretion (Nice, France), 2015年04月Identification of a novel small molecule targeting KATP channels to stimulate insulin secretion.[招待有り]
- The 73th scientific sessions of the American Diabetes Association (Chicago, USA)., 2013年06月Sulfonylurea act as an enhancer of Epac2 activation in cAMP-induced insulin secretion.
- Beta Cell Workshop 2013 (Kyoto, Japan), 2013年04月Identification and characterization of the binding site and properties of antidiabetic sulfonylurea drugs in the cAMP sensor Epac2A.[招待有り]
- 8th Beta Cell Workshop, 2013年, 英語, Kyoto, 日本国, 国際会議Metformin enhances secretion of GLP-1 but not GIP and improves beta-cell function in Japanese patients with type 2 diabetes
- 第6回糖尿病臨床フォーラム, 2012年03月, 日本語, 大阪, 日本国, 国内会議GAD抗体高値を示しながらインスリン分泌能の保持が継続されている橋本病合併の1型糖尿病の1例
- 第6回糖尿病臨床フォーラム, 2012年03月, 日本語, 大阪, 日本国, 国内会議意識障害で救急搬送された1型糖尿病ケトアシドーシスの1例
- 第6回糖尿病臨床フォーラム, 2012年03月, 日本語, 大阪, 日本国, 国内会議ステロイド治療中にケトーシスを発症した多発性硬化症患者の一例
- 47th EASD2012, Poster, 2012年, 英語, Berlin, Germany, ドイツ連邦共和国, 国際会議Dietary intake and serum level of n-3 polyunsaturated fatty acids as predictors of DPP-4 inhibitor efficacy in patients with type 2 diabetesポスター発表
- 9th IDF-WPR Congress / 4th AASD Scientific Meeting, Oral, 2012年, 英語, Kyoto, Japan, 日本国, 国際会議Early detection of diabetic vascular complication using flow-mediated dilation (FMD) in patients with diabetes mellitus口頭発表(一般)
- 9th IDF-WPR Congress / 4th AASD Scientific Meeting, Oral, 2012年, 英語, Kyoto, Japan, 日本国, 国際会議Metformin Enhances Secretion of GLP-1 but not GIP and Ameliorates Postprandial Hyperglycemia in Japanese Type 2 Diabetes口頭発表(一般)
- 47th EASD2012, Oral, 2012年, 英語, Berlin, Germany, ドイツ連邦共和国, 国際会議Metformin enhances secretion of GLP-1 but not GIP and improves postprandial glucose excursion in Japanese patients with type 2 diabetes口頭発表(一般)
- 9th IDF-WPR Congress / 4th AASD Scientific Meeting, Poster, 2012年, 英語, Kyoto, Japan, 日本国, 国際会議Effects of Sitaglipptin, Acarbose and Sulfonylureas on Postprandial Levels of GLP-1 and GIP in Japanese Patients with Type 2 Diabetesポスター発表
- 第55回日本糖尿病学会年次学術集会, 2012年, 日本語, 横浜, 日本国, 国内会議瞳孔反応を用いた糖尿病神経障害の評価:糖尿病自律神経障害早期検出のためのカットオフ値の検討
- 第55回日本糖尿病学会年次学術集会, 2012年, 日本語, 横浜, 日本国, 国内会議インスリンからリラグルチドへの変更時の効果および注意点に関する検討
- 第55回日本糖尿病学会年次学術集会, 2012年, 日本語, 横浜, 日本国, 国内会議2型糖尿病患者におけるFMD値の検討について
- 第55回日本糖尿病学会年次学術集会, 2012年, 日本語, 横浜, 日本国, 国内会議シタグリプチン投与時のSU薬とメトホルミンの影響
- 第55回日本糖尿病学会年次学術集会, 2012年, 日本語, 横浜, 日本国, 国内会議DPP-4阻害薬の血糖改善効果に影響する摂取および血中栄養素
- 第15回日本病態栄養学会年次学術集会, 2012年01月, 日本語, 京都, 日本国, 国内会議膵頭十二指腸切除術後の低栄養に消化酵素配合剤の投与が奏効した一例
- 第54回日本糖尿病学会年次学術集会, 2011年05月, 日本語, 日本国, 国内会議インスリン開口分泌におけるRab11およびそのエフェクターRip11の役割
- 16th Japan-Korea Joint Symposium on Diabetes Mellitus, 2011年, 英語, Tokyo, Japan, 大韓民国, 国際会議Efficacy and Safety of Insulin-to-Liraglutide Switch in Management of Type 2 Diabetes in Japaneseシンポジウム・ワークショップパネル(指名)
- 16th Japan-Korea Joint Symposium on Diabetes Mellitus, 2011年, 英語, Tokyo, Japan, 大韓民国, 国際会議Incretin Secretion in Japanese Patients with Type 2 Diabetes: Association with Clinical Parameters and Effects of Sulfonylureasシンポジウム・ワークショップパネル(指名)
- 3rd AASD Poster, 2011年, 英語, Beijing, China, 中華人民共和国, 国際会議Incretin Secretion in Japanese Patients with Type 2 Diabetes: Association with Clinical Parameters and Effects of Sulfonylureasポスター発表
- 47th EASD, 2011年, 英語, Lisbon, Portugal, ポルトガル共和国, 国際会議Effects of sitagliptin, acarbose and sulfonylureas on postprandial levels of GLP-1 and GIP in Japanese patients with type 2 diabetes
- 3rd AASD Late Breaking Poster, 2011年, 英語, Beijing, China, 中華人民共和国, 国際会議GIP Receptor Polymorphism rs10423928 and Glucagon Response after Glucose or Meal Ingestionsポスター発表
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議糖尿病患者におけるFMD測定値に関与する因子の検討
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議糖尿病を伴う胃癌患者における外科手術再建法の違いによる血糖コントロールへの影響についての検討
- 第196回日本内科学会近畿地方会, 2011年, 日本語, 京都, 日本国, 国内会議糖尿病ケトアシドーシス昏睡で発症した脳膿瘍の一例
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議糖尿病ケトアシドーシス昏睡で発症した脳膿瘍の一例
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議瞳孔反射を用いた糖尿病神経障害の評価:既存神経障害関連検査との相関とカットオフ値の検討
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議インスリンからリラグルチドへの変更時の効果及び注意点に関する検討
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議インスリンからリラグルチドへの治療変更に関する適応と有効性の検討
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議薬物未治療もしくは経口糖尿病薬治療中の2型糖尿病患者へのリラグルチド導入効果
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議シタグリプチン服用中に自己免疫性膵炎を発症した高齢2型糖尿病患者の1例
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議当院における糖尿病地域連携パスを用いた患者の血糖コントロールの特徴について
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議SU薬の併用がシタグリプチンの効果に変化を与えるか否かの検討
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議日本人2型糖尿病患者のインクレチン分泌パターンの特徴と分泌に影響を与える因子の検索
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議糖尿病治療法選択時点における治療法と細小血管障害重症度との関連
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議リラグルチド導入による血糖日内変動の改善:持続血糖測定(CGM)と1,5-AGによる評価
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議DPP-4阻害薬の血糖改善効果をより効果的にする食事療法
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議リラグルチド使用中の2型糖尿病患者の食事調査―リラグルチド開始前後の比較検討―
- 第48回日本糖尿病学会近畿地方会, 2011年, 日本語, 大阪, 日本国, 国内会議ペグインターフェロンによる慢性C型肝炎治療後に発症した1型糖尿病の一例
- 第54回日本糖尿病学会年次学術集会, 2011年, 日本語, 札幌, 日本国, 国内会議睡眠時無呼吸障害に関与する因子:肥満度及び血糖コントロールについて
- The 2nd Scientific Meeting of the Asian Association for the Study of Diabetes (Okayama, Japan), 2010年05月Little enhancement of meal-induced GLP-1 secretion in Japanese: Comparison of type 2 diabetes and healthy controls.
- Asia Islet Biology & Incretin Symposium, AIBIS 2010, 2010年, 英語, Kyoto, 日本国, 国際会議Impaired Super Early Insulin Phase Insulin Secretion and Its Genetic Restriction in Japaneseシンポジウム・ワークショップパネル(指名)
- 8th IDF-WPR Congress Oral Presentation, 2010年, 英語, Busan, Korea, 大韓民国, 国際会議No Enhancement of Meal-Induced GLP-1 Secretion and Reduced Intact GLP-1 Levels in Japanese: Comparison of Type 2 Diabetes and Healthy Controls口頭発表(一般)
- 2nd AASD Poster Session, 2010年, 英語, Okayama, 日本国, 国際会議Impaired super early phase insulin secretion and its genetic restriction in Japanese type 2 diabetes and controlsポスター発表
- 8th IDF-WPR Congress Oral Presentation, 2010年, 英語, Busan, Korea, 大韓民国, 国際会議Impaired Super Early Phase Insulin Secretion and Its Genetic Restriction in Japanese口頭発表(一般)
- 8th IDF-WPR Congress Oral Presentation, 2010年, 英語, Busan, Korea, 大韓民国, 国際会議Evaluation of Plasma Thioredoxin and Glutathione Levels in Patients with Diabetes Mellitus口頭発表(一般)
- 46th EASD, 2010年, 英語, Stockholm, スウェーデン王国, 国際会議GIP receptor polymorphism rs10423928 affects body mass index and insulin and glucagon response after ingestion of glucose or mixed meals in Japanese
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議GAD抗体高値を示しながらインスリン分泌が保持された橋本病合併の1型糖尿病の一例
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議シタグリプチン投与によりインスリン離脱が出来た糖尿病患者11例の検討
- 第53回日本糖尿病学会年次学術集会, 2010年, 日本語, 岡山, 日本国, 国内会議ヒト血漿中の活性型GLP-1濃度の測定法に関する検討
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議自己中断歴を有し糖尿病ケトアシドーシス(DKA)と肺炎球菌肺炎を合併した一例
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議糖尿病患者におけるシタグリプチン併用時の薬物減量の影響について
- 第25回日本糖尿病合併症学会, 2010年, 日本語, 滋賀, 日本国, 国内会議糖尿病治療法選択時点における治療法と細小血管障害重傷度との関連
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議浮腫・貧血を契機に、低栄養を伴う著明な膵萎縮・慢性膵炎が判明した糖尿病の一例
- 第53回日本糖尿病学会年次学術集会, 2010年, 日本語, 岡山, 日本国, 国内会議日本人超早期インスリン分泌を規定する遺伝学的因子の検討
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議口腔内感染症が敗血症の原因と考えられる2型糖尿病の一例
- 第47回日本糖尿病学会近畿地方会, 2010年, 日本語, 大阪, 日本国, 国内会議繰り返す事故中断によりインスリン依存状態に至った2型糖尿病患者の一例
- 15th Korea-Japan Symposium on Diabetes Mellitus Symposium 9, 2009年, 英語, Jeju, Korea, 大韓民国, 国際会議Evaluation of Oxidative Stress Biomarkers in Patients with Diabetes Mellitusシンポジウム・ワークショップパネル(指名)
- 第46回日本糖尿病学会近畿地方会, 2009年, 日本語, 京都, 日本国, 国内会議グルカゴンの奇異性分泌亢進を認めた劇症1型糖尿病の一例
- 第46回日本糖尿病学会近畿地方会, 2009年, 日本語, 京都, 日本国, 国内会議糖尿病地域連携パス:関西電力病院における取り組みと今後の課題
- 第189回日本内科学会近畿地方会, 2009年, 日本語, 大阪, 日本国, 国内会議日本人2型糖尿病における超早期インスリン分泌障害とグルカゴン分泌亢進
- 第46回日本糖尿病学会近畿地方会, 2009年, 日本語, 京都, 日本国, 国内会議血中C-ペプチドと糖尿病細小血管障害との関連について
- 第46回日本糖尿病学会近畿地方会, 2009年, 日本語, 京都, 日本国, 国内会議ミトコンドリアDNA3243変異を有するミトコンドリア糖尿病の一例
- 第3回日本蛋白質科学会年会, 2003年06月, 日本語, 日本国, 国内会議オートファジーに関する蛋白質LC3-Iの立体構造解析
■ 共同研究・競争的資金等の研究課題
- 日本学術振興会, 科学研究費助成事業, 基盤研究(A), 神戸大学, 2024年04月01日 - 2027年03月31日腸管グルコース排泄の分子メカニズムとその生理的意義の解析
- 公益財団法人木下記念事業団, 木下基礎科学研究基金助成事業, 2025年06月 - 2026年05月, 研究代表者消化管における逆行性グルコース輸送機構の包括的解析
- 日本学術振興会, 科学研究費助成事業, 基盤研究(C), 神戸大学, 2023年04月01日 - 2026年03月31日消化管における逆行性グルコース輸送機構の分子機構および生理的意義の解明
- 鈴木万平糖尿病財団, 令和4年度 若手研究者調査研究助成, 2022年10月 - 2024年09月メトホルミンが生体内の金属動態に与える影響およびその意義の解明
- 細胞科学研究財団, 令和3年度 研究助成, 2021年04月 - 2024年03月, 研究代表者メトホルミンによる腸管腔内へのグルコース排泄機構の解明
- 第9回(2022年度)日本糖尿病財団・ベーリンガーインゲルハイム研究助成金, 2022年12月 - 2023年11月消化管における逆行性グルコース輸送機構の包括的解析
- 日本学術振興会, 科学研究費助成事業 基盤研究(C), 基盤研究(C), 神戸大学, 2020年04月01日 - 2023年03月31日鉄キレート作用を介したメトホルミンによる新規耐糖能改善メカニズムの解明
- 鈴木謙三記念医科学応用研究財団, 令和3年度調査研究助成, 2021年12月 - 2022年12月, 研究代表者腸管へのグルコース排泄による新規糖代謝制御機構の解明
- 神戸医療産業都市研究開発助成金 若手支援枠, 2020年09月 - 2022年03月, 研究代表者金属キレート作用を活用した抗糖尿病治療薬開発
- MSD生命科学財団, 研究助成-生活習慣病領域-【若手研究者】, 2019年12月, 研究代表者鉄キレート作用を介したメトホルミンの新規作用機序の解明競争的資金
- 武田科学振興財団, 医学系研究助成, 2019年08月, 研究代表者鉄キレート作用を介したメトホルミンによる新規耐糖能改善メカニズムの解明競争的資金
- 文部科学省, 科学研究費補助金(若手研究(B)), 2016年04月 - 2019年03月, 研究代表者ケミカルプロテオミクスによる新規インスリン分泌増強メカニズムの解明競争的資金
- 日本糖尿病協会, 日本糖尿病協会若手研究者助成, 2015年04月 - 2016年03月, 研究代表者新規糖尿病治療薬としてのEpac2A活性化化合物の同定競争的資金
- 文部科学省, 科学研究費補助金(若手研究(B)), 2013年04月 - 2016年03月, 研究代表者新規糖尿病治療薬としてのEpac2A活性化化合物の同定競争的資金
- 日本糖尿病協会, 日本糖尿病協会若手研究者助成, 2014年04月 - 2015年03月, 研究代表者新規糖尿病治療薬としてのEpac2A活性化化合物の同定競争的資金
