FUJINOKI MASAKATSU

Profiles

Profiles

• 氏名

  FUJINOKI MASAKATSU

Affiliation

• Laboratory for Reproductive Medicine, Associate Professor

Profile and Settings

Research Areas

• Life Science, Developmental biology

Research achievements

Published Papers

Original paper
• Tryptophan promotes sperm hyperactivation in hamsters via 5-hydroxytryptamine biosynthesis within sperm, Issei Suzuki, Masakatsu Fujinoki, Takao Kamai, The Journal of reproduction and development, 71(5), 256-265, 09 Oct. 2025

  DOI
• Influences of 5-hydroxytriptamine on sperm hyperactivation and in vitro fertility in rats, Yuki KOYANO, Masakatsu FUJINOKI, Journal of Reproduction and Development, 71(2), 85-92, 14 Apr. 2025

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• Progesterone and estradiol regulate sperm hyperactivation and in vitro fertilization success in mice., Miyu Fujikura, Masakatsu Fujinoki, The Journal of reproduction and development, 70(2), 96-103, 04 Apr. 2024

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• Reactive blue 2 labels protamine in late-haploid spermatids and spermatozoa and can be used for toxicity evaluation., Yokota S, Wakayama T, Miyaso H, Suga K, Fujinoki M, Kaneko S and Kitajima S, Andrologia, 2023, 7364862, 11 Nov. 2023

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• Enhancement of rat spermatozoal hyperactivation by progesterone, Miyazawa Y, Fujinoki M, Journal of Reproduction and Development, 69(5), 279-290, 20 Oct. 2023

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• Progesterone increases the success of in vitro fertilization via enhanced sperm hyperactivation in mice, Suzuki R, Fujinoki M, Journal of Reproduction and Developement, 69(3), 147-153, 06 Jun. 2023

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• Vasopressin V1a receptor and oxytocin receptor regulate murine sperm motility differently., Tsuchiya H, Fujinoki M, Azuma M, Koshimizu T, Life Science Alliance, 6(4), e202201488, 17 Jan. 2023

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• Effects of aging and oviductal hormones on testes, epididymides, and sperm of hamster, Miyashita M, Fujinoki M, Reproductive Medicine and Biology, 21, e12474, 03 Jul. 2022

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• Serotonergic signals enhanced hamster sperm hyperactivation, Sakamoto C, Fujinoki M, Kitazawa M, Obayashi S, Journal of Reproduction and Development, 67(4), 241-250, Aug. 2021

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• Effects of 5-hydroxytryptamine on spermatozoal hyperactivation and in vitro fertilization in mice, Sugiyama Y, Fujinoki MShibahara H, Journal of Reproduction and Development, 65(6), 541-550, Dec. 2019

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• Regulatory mechanisms of sperm flagellar motility by metachronal and synchronous sliding of doublet microtubules, Takei GL, Fujinoki M, Yoshida K, Ishijima S, Molecular Human Reproduction, 23(12), 817-826, Dec. 2017

  DOI
• gamma-Aminobutyric acid suppresses enhancement of hamster sperm hyperactivation by 5-hydroxytryptamine, Fujinoki M, Takei GL, Journal of Reproduction and Development, 63(1), 67-74, Feb. 2017

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• Regulation of sperm capacitation by molecules present in the female oviduct., Fujinoki M, Proceeding of The 17 Asian-Australasian Association of Animal Production Societies Animal Science Congress, 1274-1277, Aug. 2016
• Regulation of hamster sperm hyperactivation by extracellular Na+, Takei GL, Fujinoki M, Reproduction, 151(6), 589-603, Jun. 2016

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• Estrogen suppresses melatonin-enhanced hyperactivation, Fujinoki M, Takei GL, Journal of Reproduction and Developement, 61(4), 287-295, Aug. 2015

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• Regulation and disruption of hamster sperm hyperactivation by progesterone, 17beta-estradiol and diethylstilbestrol, Fujinoki M, Reproductive Medicine and Biology, 13(3), 143-152, Jul. 2014

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• Suppression of Progesterone-enhanced Hyperactivation in Hamster Spermatozoa by gamma-aminobutyric Acid, Kon H, Takei GL, Fujinoki M, Shinoda M, Journal of Reproduction and Development, 60(3), 202-209, Jul. 2014

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• Progesterone-enhanced sperm hyperactivation through IP3-PKC and PKA signals, Fujinoki M, Reproductive Medicine and Biology, 12(1), 27-33, Jan. 2013

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• Serotonin-enhanced hyperactivation of hamster sperm, Fujinoki M, Reproduction, 142(2), 255-266, Aug. 2011

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• Characterization of an alternative chromatin remodeling to parasperm in a cottid fish, Hemilepidotus gilberti, Nakauchi Y, Hayakawa Y, Fujinoki M, Yamamura O, Kobayashi M, Watanabe A, Zoolog Sci, 28(6), 438-443, Jun. 2011

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• Suppression of progesterone-enhanced hyperactivation in hamster spermatozoa by estrogen, Fujinoki M, Reproduction, 140(3), 453-464, Sep. 2010

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• Regulation of hyperactivation by PPP2 in hamster spermatozoa, Suzuki T, Fujinoki M, Shibahara H, Suzuki M, Reproduction, 139(5), 847-856, May 2010

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• Melatonin-enhanced hyperactivation of hamster sperm, Fujinoki M, Reproduction, 136(5), 533-541, Nov. 2008

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• Tissue specificity of tropomyosin isoform in the mussel, Mytilus galloprovincialis, Itoh A, Fujinoki M, Journal of Electrophoresis, 52(3), 47-52, Sep. 2008
• Regulation of hyperactivation of hamster spermatozoa by progesterone, Noguchi T, Fujinoki M, Kitazawa M, Inaba N, Reproductive Medicine and Biology, 7(2), 63-74, Jun. 2008

  DOI
• Alteration of cystatin C in the cerebrospinal fluid of multiple sclerosis, Nakashima I, Fujinoki M, Fujihara K, Kawamura T, Nishimura T, Nakamura M, Itoyama Y, Ann Neurol, 62(2), 197-200; discussion 205, Aug. 2007

  DOI
• Profiling of proteins phosphorylated or dephosphorylated during hyperactivation via activation on hamster spermatozoa, Fujinoki M, Suzuki T, Takayama T, Shibahara H, Ohtake H, Reproductive Medicine and Biology, 5(2), 123-135, Jun. 2006

  DOI
• Heterogeneity and tissue specificity of tropomyosin isoforms from four species of bivalves, Fujinoki M, Ueda M, Inoue T, Yasukawa N, Inoue R, Ishimoda-Takagi T, Comp Biochem Physiol B Biochem Mol Biol, 143(4), 500-506, Apr. 2006

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• K+-independent initiation of motility in chum salmon sperm treated with an organic alcohol, glycerol, Morita M, Fujinoki M, Okuno M, J Exp Biol, 208(Pt 23), 4549-4556, Dec. 2005

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• Profiling of proteins associated with cisplatin resistance in ovarian cancer cells, Zhu K, Fukasawa I, Fujinoki M, Furuno M, Inaba F, Yamazaki T, Kamemori T, Kousaka N, Ota Y, Hayashi M, Maehama T, Inaba N, Int J Gynecol Cancer, 15(5), 747-754, Sep. 2005

  DOI
• Serine/threonine phosphorylation associated with hamster sperm hyperactivation, Fujinoki M, Ishimoda-Takagi T, Ohtake H, Reproductive Medicine and Biology, 3(4), 223-230, Dec. 2004
• Identification of 66 kDa phosphoprotein associated with motility initiation of hamster spermatozoa, Fujinoki M, Kawamura T, Toda T, Ishimoda-Takagi T, Ohtake H, Shimizu N, Okuno M, Reproductive Medicine and Biology, 3(3), 133-139, Sep. 2004
• Effects of dibromoacetic add on murine spermatozoa and testis, Fujinoki Masakatsu, Imaizumi Yoshie, Ohtake Hideki, Yamaoka Sadao, Reproductive Medicine and Biology, 3(2), 85-93, Jun. 2004
• Identification of 36 kDa phosphoprotein in fibrous sheath of hamster spermatozoa, Fujinoki M, Kawamura T, Toda T, Ohtake H, Ishimoda-Takagi T, Shimizu N, Yamaoka S, Okuno M, Comp Biochem Physiol B Biochem Mol Biol, 137(4), 509-520, Apr. 2004

  DOI
• Identification of the 58-kDa phosphoprotein associated with motility initiation of hamster spermatozoa, Fujinoki M, Kawamura T, Toda T, Ohtake H, Shimizu N, Yamaoka S, Okuno M, J Biochem, 134(4), 559-565, Oct. 2003
• Purification and characterization of the 15-kDa protein from the sperm flagella of salmonid fishes, Itoh A, Fujinoki M, Kawamura T, Inaba K, Ohtake H, Shimizu N, Morisawa M, Biomedical Research, 24(4), 153-164, Aug. 2003
• Characterization of a cAMP-dependent protein kinase catalytic subunit from rainbow trout spermatozoa, Itoh A, Inaba K, Ohtake H, Fujinoki M, Morisawa M, Biochem Biophys Res Commun, 305(4), 855-861, Jun. 2003
• Identification of 36-kDa flagellar phosphoproteins associated with hamster sperm motility, Fujinoki M, Kawamura T, Toda T, Ohtake H, Ishimoda-Takagi T, Shimizu N, Yamaoka S, Okuno M, J Biochem, 133(3), 361-369, Mar. 2003
• Tropomyosin isoforms present in the sea anemone, Anthopleura japonica (Anthozoa, Cnidaria), Fujinoki M, Tomiyama T, Ishimoda-Takagi T, J Exp Zool, 293(7), 649-663, Dec. 2002

  DOI
• Motility-associated and cyclic AMP-dependent protein phosphorylation in the sperm of the chum salmon, Oncorhynchus keta, Itoh A, Inaba K, Fujinoki M, Morisawa M, Biomedical Research, 22(5), 241-248, Oct. 2001
• Tyrosine phosphorylation and dephosphorylation associated with motility of hamster spermatozoa, Fujinoki M, Ohtake H, Okuno M, Biomedical Research, 22(3), 147-155, Jun. 2001
• Serine phosphorylation of flagellar proteins associated with the motility activation of hamster spermatozoa, Fujinoki M, Ohtake H, Okuno M, Biomedical Research, 22(1), 45-58, Feb. 2001

Review paper
• Fujinoki M, Takei GL, Kon H, Journal of Physiological Sciences, 66(3), 207-212, May 2016

  DOI
• Non-genomic regulation of mammalian sperm hyperactivation, Fujinoki M, Reproductive Medicine and Biology, 8(2), 47-52, Jun. 2009

  DOI

Books etc

• Contributor, 30 Mar. 2024, 314, Refereed, Japanese, Dictionary or encycropedia, 978-4-621-30908-7
• Contributor, 10 Nov. 2023, 202, 7-11, Japanese, Textbook, 978-4-498-16048-4
• Contributor, 25 Nov. 2022, 153, 16-21, Japanese, Textbook, 978-4-498-16042-2
• The Prime Book to Improve Your ART Skills, Contributor, Masakatsu Fujinoki, 15 Apr. 2022, 477, 121-124, Japanese, Textbook, 978-4-498-16026-2

Educational activity

FD活動

• 2013
• 2012
• 2011

Social contributions

Academic Contribution

• Apr. 2008, Not contributing to international academic