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  1. Article

    Open Access

    Characterization of the fatty acid profile in the ventral midbrain of mice exposed to dietary imbalance between omega-6 and omega-3 fatty acids during specific life stages

    Omega-6 (n-6) and omega-3 (n-3) polyunsaturated fatty acids (PUFAs) are essential nutrients. Dietary imbalance between these PUFAs, in particular high in n-6 PUFAs and low in n-3 PUFAs (n-6high/n-3low), is common...

    Nobuyuki Sakayori, Masanori Katakura, Susumu Setogawa, Makoto Sugita in BMC Research Notes (2022)

  2. No Access

    Article

    Antifungal activity of dehydrocurvularin for Candida spp. through the inhibition of adhesion to human adenocarcinoma cells

    Cell adhesion plays a crucial role in candidiasis through invasion of the human body and obtaining resistance to drugs by forming biofilms. Cell adhesion thus is a critical target for combating candidiasis by ...

    Hitoshi Kamauchi, Miho Furukawa, Yuka Kiba, Masashi Kitamura in The Journal of Antibiotics (2022)

  3. No Access

    Article

    Chronic Administration of Thymoquinone Enhances Adult Hippocampal Neurogenesis and Improves Memory in Rats Via Regulating the BDNF Signaling Pathway

    Thymoquinone is a pharmacologically active component of Nigella sativa Linn. seeds. Despite the diverse neuropharmacological attributes of TQ, limited reports related to adult neurogenesis and memory research are...

    Abdullah Al Mamun, Kentaro Matsuzaki, Rafiad Islam in Neurochemical Research (2022)

  4. Article

    Open Access

    Omega-3 fatty acid prevents the development of heart failure by changing fatty acid composition in the heart

    Some clinical trials showed that omega-3 fatty acid (FA) reduced cardiovascular events, but it remains unknown whether omega-3 FA supplementation changes the composition of FAs and their metabolites in the hea...

    Haruhiro Toko, Hiroyuki Morita, Masanori Katakura, Michio Hashimoto in Scientific Reports (2020)

  5. Article

    Open Access

    Maternal dietary imbalance between omega-6 and omega-3 fatty acids triggers the offspring’s overeating in mice

    The increasing prevalence of obesity and its effects on our society warrant intensifying basic animal research for understanding why habitual intake of highly palatable foods has increased due to recent global...

    Nobuyuki Sakayori, Masanori Katakura, Kei Hamazaki, Oki Higuchi in Communications Biology (2020)

  6. No Access

    Article

    Capsaicin partially mimics heat in mouse fibroblast cells in vitro

    Capsaicin activates transient receptor potential vanilloid 1 (TRPV1), a cation channel in the transient receptor potential family, resulting in the transient entry of Ca2+ and Mg2+ and a warm sensation. However, ...

    Naotoshi Sugimoto, Masanori Katakura in Naunyn-Schmiedeberg's Archives of Pharmaco… (2017)

  7. No Access

    Article

    Differential effects of docoosahexaenoic and arachidonic acid on fatty acid composition and myosin heavy chain-related genes of slow- and fast-twitch skeletal muscle tissues

    Myosin heavy chain (MHC) mediates the metabolic and contractile responses of skeletal muscles. MHC displays different isoforms, each of which has different characteristics. To better understand the effect of p...

    Michio Hashimoto, Takayuki Inoue, Masanori Katakura in Molecular and Cellular Biochemistry (2016)

  8. No Access

    Article

    Oral intake of encapsulated dried ginger root powder hardly affects human thermoregulatory function, but appears to facilitate fat utilization

    The present study investigated the impact of a single oral ingestion of ginger on thermoregulatory function and fat oxidation in humans. Morning and afternoon oral intake of 1.0 g dried ginger root powder did ...

    Mayumi Miyamoto, Kentaro Matsuzaki in International Journal of Biometeorology (2015)

  9. Article

    Open Access

    Medicinal value of asiaticoside for Alzheimer’s disease as assessed using single-molecule-detection fluorescence correlation spectroscopy, laser-scanning microscopy, transmission electron microscopy, and in silico docking

    Identifying agents that inhibit amyloid beta peptide (Aβ) aggregation is the ultimate goal for slowing Alzheimer’s disease (AD) progression. This study investigated whether the glycoside asiaticoside inhibits Aβ1...

    Shahdat Hossain, Michio Hashimoto in BMC Complementary and Alternative Medicine (2015)

  10. No Access

    Article

    Long-term Heat Exposure Prevents Hypoxia-Induced Apoptosis in Mouse Fibroblast Cells

    Long-term continuous exposure to high ambient temperatures induces complete heat acclimation in humans and animals. However, to date, the effects of long-term exposure to heat stress on cells have not been ful...

    Naotoshi Sugimoto, Osamu Shido, Kentaro Matsuzaki in Cell Biochemistry and Biophysics (2014)

  11. Article

    Open Access

    Prescription n-3 Fatty Acids, But Not Eicosapentaenoic Acid Alone, Improve Reference Memory-Related Learning Ability by Increasing Brain-Derived Neurotrophic Factor Levels in SHR.Cg-Lepr cp /NDmcr rats, A Metabolic Syndrome Model

    Metabolic syndrome is implicated in the decline of cognitive ability. We investigated whether the prescription n-3 fatty acid administration improves cognitive learning ability in SHR.Cg-Lepr ...

    Michio Hashimoto, Takayuki Inoue, Masanori Katakura, Yoko Tanabe in Neurochemical Research (2013)

  12. Article

    Open Access

    Hydrogen-rich water inhibits glucose and α,β -dicarbonyl compound-induced reactive oxygen species production in the SHR.Cg-Lepr cp /NDmcr rat kidney

    Reactive oxygen species (ROS) production induced by α,β-dicarbonyl compounds and advanced glycation end products causes renal dysfunction in patients with type 2 diabetes and metabolic syndrome. Hydrogen-rich ...

    Masanori Katakura, Michio Hashimoto, Yoko Tanabe, Osamu Shido in Medical Gas Research (2012)

  13. Article

    Open Access

    Effects of hydrogen-rich water on abnormalities in a SHR.Cg-Lepr cp /NDmcr rat - a metabolic syndrome rat model

    Hydrogen (H2), a potent free radical scavenger, selectively reduces the hydroxyl radical, which is the most cytotoxic of the reactive oxygen species (ROS). An increase in oxygen free radicals induces oxidative st...

    Michio Hashimoto, Masanori Katakura, Toru Nabika, Yoko Tanabe in Medical Gas Research (2011)

  14. No Access

    Chapter

    Docosahexaenoic Acid and Cognitive Dysfunction

    Docosahexaenoic acid (DHA, C22:6n-3), one of the essential n-3 polyunsaturated fatty acids (n-3 PUFAs) in the brain, exerts a markedly beneficial effect on neuronal cell functions. A reduction in brain DHA conten...

    Michio Hashimoto, Hossain Md Shahdat in Handbook of Behavior, Food and Nutrition (2011)

  15. No Access

    Article

    Proliferation of neuronal progenitor cells and neuronal differentiation in the hypothalamus are enhanced in heat-acclimated rats

    Male Wistar rats, initially maintained at an ambient temperature (T a) of 24°C, were subjected to a constant high T a of 32°C (HE) or were constantly kept at 24°C (...

    Kentaro Matsuzaki, Masanori Katakura in Pflügers Archiv - European Journal of Phys… (2009)

  16. No Access

    Article

    Changes of noradrenaline-induced contractility and gene expression in aorta of rats acclimated to heat in two different modes

    We investigated changes in responsiveness to noradrenaline (NA) and gene expression in aorta, and plasma nitrite/nitrate (NOx) levels in heat-acclimated rats. Male rats were exposed for 10 consecutive days to ...

    Guang Hua Li, Masanori Katakura, Megumi Maruyama in European Journal of Applied Physiology (2008)