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  1. Article

    Open Access

    Shoot gravitropism and organ straightening cooperate to arrive at a mechanically favorable shape in Arabidopsis

    Gravitropism is the plant organ bending in response to gravity, while a straightening mechanism prevents bending beyond the gravitropic set-point angle. The promotion and prevention of bending occur simultaneo...

    Satoru Tsugawa, Yuzuki Miyake, Keishi Okamoto, Masatsugu Toyota in Scientific Reports (2023)

  2. Article

    Open Access

    Cough-Inducing Method Using a Tartaric Acid Nebulizer for Patients with Silent Aspiration

    The tartaric acid nebulizer is a well-known cough test to evaluate cough function. This study aimed to evaluate the effectiveness of a cough-inducing method using tartaric acid (CiTA). Patients with dysphagia ...

    Tomohisa Ohno, Naomi Tanaka, Mariko Fujimori, Keishi Okamoto, Satoe Hagiwara in Dysphagia (2022)

  3. No Access

    Article

    Gross anatomical investigation of the muscular head between the vastus lateralis and intermedius in the Japanese population: a cadaver study

    Unlike the general understanding of the quadriceps femoris, the existence of a new muscular head between the vastus lateralis and the vastus intermedius was reported, and named the tensor of the vastus interme...

    Keiko Ogami-Takamura, Kazunobu Saiki, Daisuke Endo in Anatomical Science International (2021)

  4. No Access

    Article

    Sex-based differences in human sacroiliac joint shape: a three-dimensional morphological analysis of the iliac auricular surface of modern Japanese macerated bones

    The human pelvis is one of the skeletons where sex differences are expressed, but few detailed studies have been conducted on sex-related differences in the sacroiliac joint morphology. Therefore, we conducted...

    Keita Nishi, Kazunobu Saiki, Joichi Oyamada in Anatomical Science International (2020)

  5. Article

    Open Access

    Investigating interindividual variations in cortical bone quality: analysis of the morphotypes of secondary osteons and their population densities in the human femoral diaphysis

    Osteons are the primary sites of cortical bone lesions. However, many aspects of osteon microstructure remain poorly understood. This study aimed to explores interindividual differences in the osteon morphotyp...

    Hiroaki Matsuo, Toshiyuki Tsurumoto, Junichiro Maeda in Anatomical Science International (2019)

  6. No Access

    Article

    Degenerative changes of the sacroiliac auricular joint surface—validation of influential factors

    The purpose of this study was to clarify the relevance of degenerative changes in the sacroiliac joint (SIJ) and the joints in the lower limb and lumbar spine using age estimation methods. We also examined the...

    Keita Nishi, Kazunobu Saiki, Takeshi Imamura in Anatomical Science International (2017)

  7. No Access

    Chapter and Conference Paper

    Balancing Between Cognitive and Semantic Acceptability of Arguments

    This paper addresses the problem concerning approximating human cognitions and semantic extensions regarding acceptability status of arguments. We introduce three types of logical equilibriums in terms of sati...

    Hiroyuki Kido, Keishi Okamoto in Knowledge Science, Engineering and Management (2017)

  8. Article

    Erratum: Regulation of organ straightening and plant posture by an actin–myosin XI cytoskeleton

    Nature Plants 1, 15031 (2015); published online 23 March 2015; corrected 14 April 2015. In the version of the Supplementary Information originally published several characters in Fig. 4 were rendered incorrect...

    Keishi Okamoto, Haruko Ueda, Tomoo Shimada, Kentaro Tamura, Takehide Kato in Nature Plants (2015)

  9. No Access

    Article

    Regulation of organ straightening and plant posture by an actin–myosin XI cytoskeleton

    Plants are able to bend nearly every organ in response to environmental stimuli such as gravity and light1,2. After this first phase, the responses to stimuli are restrained by an independent mechanism, or even r...

    Keishi Okamoto, Haruko Ueda, Tomoo Shimada, Kentaro Tamura, Takehide Kato in Nature Plants (2015)

  10. No Access

    Article

    A case of retroesophageal right subclavian artery, with special reference to the second intercostal artery, retroesophageal right vertebral artery, and thoracic duct

    We report a case of retroesophageal right subclavian artery identified in a 59-year-old Japanese female during routine dissection in Nagasaki University School of Medicine. This kind of variation is relatively...

    Keishi Okamoto, Tetsuaki Wakebe, Kazunobu Saiki in Anatomical Science International (2013)

  11. Article

    Open Access

    Relation between bilateral differences in internal jugular vein caliber and flow patterns of dural venous sinuses

    We measured the calibers of the left and right internal jugular veins (IJV) and sizes of the left and right transverse sinuses (TS) in 91 cadavers, compared them between the left and right sides, and also eval...

    Kazunobu Saiki, Toshiyuki Tsurumoto, Keishi Okamoto in Anatomical Science International (2013)

  12. No Access

    Article

    The nerves to the plantaris muscle and a bipennate part of the soleus muscle

    We performed nerve fiber analysis of the nerve to the plantaris muscle in ten cases. Macroscopically, the nerve to the plantaris muscle has a tendency to branch off from the tibial nerve itself independent of ...

    Keishi Okamoto, Tetsuaki Wakebe, Kazunobu Saiki in Anatomical Science International (2013)

  13. No Access

    Article

    Evaluation of trabecular bone formation in a canine model surrounding a dental implant fixture immobilized with an antimicrobial peptide derived from histatin

    JH8194 induces osteoblast differentiation, although it was originally designed to improve antifungal activity. This suggests that JH8194 is useful for implant treatment. Therefore, the aim of this study was to...

    Seicho Makihira, Hiroki Nikawa in Journal of Materials Science: Materials in… (2011)

  14. Article

    Response to Dr. Netanel Berko’s letter entitled “Partial anomalous pulmonary venous return: more common from the left or right lung?”

    Keishi Okamoto, Tetsuaki Wakebe, Kazunobu Saiki in Anatomical Science International (2009)

  15. No Access

    Article

    Anatomical study of partial anomalous pulmonary venous return with special references to the bronchial vein: supplementary report

    After the authors’ previous report an additional case of partial anomalous pulmonary venous return was encountered during dissection practice for medical students. In an 87-year-old Japanese male cadaver, the ...

    Keishi Okamoto, Tetsuaki Wakebe, Kazunobu Saiki in Anatomical Science International (2008)

  16. No Access

    Article

    Consideration of the potential courses of the common iliac artery

    We encountered a rare case of the left common iliac artery in a 92-year-old Japanese female cadaver during dissection practice for medical students. The artery entered into the small pelvis without branching t...

    Keishi Okamoto, Tetsuaki Wakebe, Kazunobu Saiki in Anatomical Science International (2005)

  17. No Access

    Article

    An anatomical study of the partial anomalous pulmonary venous return with special references to the bronchial vein

    Two examples of partial anomalous drainage of the pulmonary vein were detected at dissection. The first case was found in a 70-year-old female Japanese. An aberrant vein, approximately 6 mm in diameter, that d...

    Keishi Okamoto, Kodo Kodama, Katsushi Kawai in Anatomical Science International (2004)