Masayuki Hayashi

ORCID: 0000-0003-1711-076X
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About
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Research Areas
  • Biochemical Analysis and Sensing Techniques
  • Regulation of Appetite and Obesity
  • Advanced biosensing and bioanalysis techniques
  • DNA and Nucleic Acid Chemistry
  • Diet, Metabolism, and Disease
  • Neuroendocrine regulation and behavior
  • Immune Cell Function and Interaction
  • Neuropeptides and Animal Physiology
  • Glioma Diagnosis and Treatment
  • Genetics, Aging, and Longevity in Model Organisms
  • Cancer, Hypoxia, and Metabolism
  • Acute Ischemic Stroke Management
  • Endoplasmic Reticulum Stress and Disease
  • Dermatological diseases and infestations
  • Urticaria and Related Conditions
  • Electrolyte and hormonal disorders
  • Immune Response and Inflammation
  • RNA Interference and Gene Delivery
  • Sarcoma Diagnosis and Treatment
  • Cerebrovascular and Carotid Artery Diseases
  • Spinal Hematomas and Complications
  • Case Reports on Hematomas
  • Analytical Chemistry and Chromatography
  • Hedgehog Signaling Pathway Studies
  • Peroxisome Proliferator-Activated Receptors

Hamanomachi Hospital
2025

Osaka University
1989-2021

Institute of Livestock and Grassland Science
2003-2017

National Agriculture and Food Research Organization
2017

Mitsubishi Tanabe Pharma Corporation
2010-2016

National Institute of Biomedical Innovation, Health and Nutrition
2014-2016

Nagoya University
1964-2015

Mitsubishi Chemical (Japan)
2010-2015

Institut de Recherche Vaccinale
2014

Kyushu University
2008-2013

Significance CpG oligodeoxynucleotide (ODN), a Toll-like receptor 9 ligand, is promising immunotherapeutic agent; however, developing an IFN-inducing ODN forming stable nanoparticle without aggregation has been unsuccessful. Here we generated nanoparticulate (K3) wrapped by the nonagonistic Dectin-1 ligand schizophyllan (SPG), K3-SPG. K3-SPG stimulates human peripheral blood mononuclear cells to produce large amounts of both type I and II IFN. thus became potent adjuvant, especially for...

10.1073/pnas.1319268111 article EN Proceedings of the National Academy of Sciences 2014-02-10

Neuropeptide Y (NPY) in the arcuate nucleus is an orexigenic hormone of which levels are regulated by humoral as well neural signals. In this study, we examined regulation NPY gene expression hypothalamic organotypic cultures. Dexamethasone (DEX) (10 –9 to 10 –7 m ) significantly increased mRNA expression, and effects were not influenced coincubation with sodium channel blocker tetrodotoxin (TTX), indicating that action DEX independent potentials. Conversely, insulin –11 inhibited stimulated...

10.1523/jneurosci.2739-05.2005 article EN cc-by-nc-sa Journal of Neuroscience 2005-09-21

Ghrelin, which was identified from the rat stomach, is a potent stimulant for food intake. Several lines of evidence suggest that orexigenic action ghrelin mediated via neuropeptide Y (NPY) neurons in arcuate nucleus, although detailed mechanisms by stimulates NPY are not clear. In this study, we examined gene regulation and agouti-related peptide (AGRP), another synthesized neurons, nucleus hypothalamic organotypic cultures. Incubation explants with significantly increased AGRP mRNA...

10.1210/en.2006-0104 article EN Endocrinology 2006-08-04

Advax, a delta inulin-derived microparticle, has been developed as an adjuvant for several vaccines. However, its immunological characteristics and potential mechanism of action are yet to be elucidated. Here, we show that Advax behaves type-2 when combined with influenza split vaccine, T helper (Th)2-type antigen, but type-1 inactivated whole virion (WV), Th1-type antigen. In addition, effect was not observed Advax-adjuvanted WV vaccine used immunize toll-like receptor (TLR) 7 knockout mice...

10.1016/j.ebiom.2016.11.015 article EN cc-by-nc-nd EBioMedicine 2016-12-01

Familial neurohypophysial diabetes insipidus (FNDI), an autosomal dominant disorder, is mostly caused by mutations in the gene of neurophysin II (NPII), carrier protein arginine vasopressin (AVP). Previous studies suggest that loss AVP neurons might be cause polyuria FNDI. Here we analyzed knockin mice expressing mutant NPII causes FNDI humans. The heterozygous manifested progressive as do patients with Immunohistochemical analyses revealed inclusion bodies were not immunostained antibodies...

10.1152/ajpregu.00034.2009 article EN AJP Regulatory Integrative and Comparative Physiology 2009-03-19

Abstract Umbilical cord blood transplantation (CBT) is accepted as an effective treatment for acute myeloid leukemia (AML), and reduced-intensity conditioning (RIC), rather than myeloablative (MAC) regimens allowed elderly patients to be treated safely. However, appropriate intensities of are still unclear, especially middle-aged patients. To compare outcomes after RIC MAC regimens, we analyzed AML aged 16 years or older in the Japanese registry database, who underwent single unit CBT...

10.1038/s41409-025-02508-2 article EN cc-by Bone Marrow Transplantation 2025-01-21

We aimed to understand the roles of miRNAs in muscle tissue maturation and those circulating microRNAs (c-miRNAs) beef production Japanese Black (JB) cattle (Wagyu), a breed with genetically background superior intermuscular fat depot, by comparing different feeding conditions (indoor grain-feeding vs. grazing on pasture). The at 18 months old were assigned pasture or conventional indoor grain for 5 months. Microarray analysis c-miRNAs from plasma extracellular vesicles led detection total...

10.1371/journal.pone.0162496 article EN cc-by PLoS ONE 2016-09-09

// Yuji Kitahata 1,2 , Tomohiro Kanuma 1,3 Masayuki Hayashi 1 Nobuyoshi Kobayashi Koji Ozasa 1,5 Takato Kusakabe Burcu Temizoz 3 Etsushi Kuroda Hiroki Yamaue 2 Cevayir Coban 4 Takuya Yamamoto Kouji Kobiyama Taiki Aoshi and Ken J. Ishii Labotatory of Adjuvant Innovation, National Institutes Biomedical Health Nutrition (NIBIOHN), Osaka, Japan 2nd Department Surgery, Wakayama Medical University, Wakayama, Laboratory Vaccine Science, WPI Immunology Frontier Research Center (IFReC), Osaka Malaria...

10.18632/oncotarget.10379 article EN Oncotarget 2016-07-01

Abstract Altered contractility of airway smooth muscle (SM) is one the main causes allergic asthma, in which predominance Th2 over Th1 cytokines plays a central role. In present study, we examine effects on SM contraction. Treatment with low concentration IL-4 (0.2 ng/ml) for 6 h augmented, whereas higher concentrations (2–20 inhibited, agonist-induced contractions collagen gels containing bovine tracheal cells. Another cytokine (IL-13) showed an augmentation gel contraction range 20–200...

10.4049/jimmunol.180.6.4191 article EN The Journal of Immunology 2008-03-15

Peripheral administration of baclofen significantly reduced food intake and body weight increase in both diabetic (db/db) diet-induced obese mice for 5 weeks, whereas it had no significant effects on energy balance their lean control mice. Despite the decreased weight, neuropeptide Y expression arcuate nucleus was decreased, pro-opiomelanocortin increased by treatment. These data demonstrate that inhibitory were mediated via at least partially, suggest GABA(B) agonists could be a new...

10.1016/j.febslet.2007.09.011 article EN FEBS Letters 2007-09-17

Familial neurohypophysial diabetes insipidus (FNDI) is caused by mutations in the gene locus of arginine vasopressin (AVP), an antidiuretic hormone. Although carriers are normal at birth, polyuria and polydipsia appear several months or years later. Previously, we made mice possessing a mutation causing FNDI reported that manifested progressive as do patients with FNDI. Here, report decreases AVP mRNA expression supraoptic nucleus were accompanied shortening poly(A) tail length mice, case...

10.1210/en.2011-1415 article EN Endocrinology 2011-10-04

A simple surgical technique for correcting posttraumatic enophthalmos is described. The steps are as follows: (1) a plaster mold obtained of the patient's face, (2) wax added to enophthalmic eye until it becomes symmetrical, (3) quantity measured, and (4) same amount sliced costal cartilage implanted beneath periosteum extended orbital wall behind vertical axis globe. Using this technique, we have successfully treated six patients with traumatic floor defects without complication. This...

10.1097/00006534-198903000-00003 article EN Plastic & Reconstructive Surgery 1989-03-01

In this study, we examined the effects of intracerebroventricular administration melanotan II (MTII), a melanocortin agonist, on insulin sensitivity in diet-induced obese (DIO) rats. Although MTII treatment significantly decreased food intake and body weight for 10 days, there was no significant difference between pair-fed groups. The tolerance test showed that improved group compared to group. Furthermore, increased number small-sized adipocytes epididymal white adipose tissues, suggesting...

10.1016/j.febslet.2007.02.019 article EN FEBS Letters 2007-02-16

Familial neurohypophysial diabetes insipidus (FNDI) is a rare disease that inherited in an autosomal dominant manner. In previous study, we made mouse model for FNDI, which showed progressive polyuria accompanied by inclusion bodies the arginine vasopressin (AVP) neurons formed aggregates endoplasmic reticulum. The present study was conducted to determine whether activities of AVP are related phenotype progression FNDI model. first experiment, female heterozygous mice were administered...

10.1152/ajpregu.00529.2009 article EN AJP Regulatory Integrative and Comparative Physiology 2009-12-03

A modified oligodeoxynucleotide (ODN) containing N(3)-methyl-5-cyanovinyl-2'-deoxyuridine reacts by photoirradiation at 366 nm with an adenine residue of a complementary template ODN to yield end-capped in 87% yield.

10.1039/b504162g article EN Chemical Communications 2005-01-01
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