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Dive into the research topics where Hironori Nakamura is active.

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Featured researches published by Hironori Nakamura.


Journal of The Autonomic Nervous System | 1998

Alteration of the properties of gastric smooth muscle in the genetically hyperglycemic OLETF rat

Hiromichi Takano; Kenro Imaeda; Makoto Koshita; Lin Xue; Hironori Nakamura; Yoshiyuki Kawase; Shigeru Hori; Tatsuyo Ishigami; Yasuzo Kurono; Hikaru Suzuki

Membrane responses were recorded from isolated gastric smooth muscle of Otsuka Long-Evans Tokushima Fatty (OLETF) and Long-Evans Tokushima Otsuka (LETO) rats, using microelectrode techniques. At the age of 68-76 weeks, the blood sugar level was 181 mg/dl in LETO rats and 350 mg/dL in OLETF rats. In both rats, the membrane potential was stable in fundus muscle and spontaneously active with generation of slow waves in antrum muscle. The resting membrane potential was about - 46 mV in fundus and - 55 mV in antrum muscles of LETO rats, and the values were 3-7 mV lower in OLETF rats. The slow waves were generated regularly in LETO rats, while they were irregular and of small amplitude in OLETF rats. Transmural nerve stimulation evoked a cholinergic excitatory junction potential and following inhibitory junction potential in LETO rats, and only an inhibitory junction potential of smaller size was generated in most of OLETF rats. The acetylcholine-induced depolarization was greater in OLETF than in LETO rats. The level of hyperpolarization produced by noradrenaline was similar between OLETF and LETO rats. Thus, the reduction of the resting membrane potential, weakening of spontaneous activity, impairment of cholinergic transmission and cholinergic supersensitivity were associated with hyperglycemia. These alterations were considered due to the development of diabetes mellitus.


Medical science monitor basic research | 2014

Effects of acupuncture stimulation on blood glucose concentration in the Otsuka Long-Evans Tokushima Fatty (OLETF) rat, an animal model for type-2 diabetes mellitus

Hironori Nakamura; Tatsuyo Ishigami; Yoshiyuki Kawase; Atsushi Yamada; Munenori Minagawa; Hiroyasu Fukuta; Yasuzo Kurono; Hikaru Suzuki

Background Effects of acupuncture stimulation on blood glucose concentration and body weight were investigated in the Otsuka Long-Evans Tokushima Fatty (OLETF) rat, a model for type-2 diabetes. Material/Methods Three groups of rats were used: OLETF, acupuncture-treated OLETF (AcOLETF), and Long-Evans Tokushima Otsuka (LETO) rats (as control for the OLETF rats). In AcOLETF rats, acupuncture stimulation was applied twice a week to 6 points (zhongwan, tianshu, qihai, ganshu, pishu, shenshu) and changes in blood glucose concentration and body weight were measured. Results Initially, at 6 weeks old, there was no significant difference in blood glucose levels between groups. Blood glucose levels increased with age in each group, reaching a maximum of about 430 mg/dl at 37 weeks in OLETF rats. In AcOLETF rats, blood glucose levels increased at a slower rate than in OLETF rats, reaching a maximum concentration of about 280 mg/dl at 37 weeks of age, significantly lower than that in OLETF rats. The concentration of blood glucose in LETO rats had stabilized at a maximum value of 120~140 mg/dl by 16 weeks, remaining at this level for up to 39 weeks. In each group, body weight increased with age and was not affected by acupuncture treatment. Conclusions In OLETF rats, acupuncture treatment significantly reduced blood glucose levels, but not their body weight, suggesting that acupuncture therapy was effective in preventing the development of type-2 diabetes mellitus.


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 2001

Objectification of Diagnosis in Acupuncture and Moxibustion; Increased Fluctuation of Meridian Functions Measured by AMI after Acupuncture Treatment According to the Low of the Five Elements.

Munenori Minagawa; Tatsuyo Ishigami; Shigeru Hori; Hironori Nakamura; Ko Yamada; Yoshiyuki Kawase; Teruo Hattori; Akira Kinuta; Yoshihiro Karino; Yoshimi Maruyama; Yasuzo Kurono

過去、腺診に関する研究として黒野らは、豚診と六祖脈との研究とAMI (経絡機能測定器) と豚診との対応の研究を行っている。今回は、AMIのBP値を指標として本治法による経絡機能の変動を客観的に検討した。コントロール (AMI10回連続測定) でのBP値の変動は、各経絡とも平均4%以内で推移し安定していた。本治法による経絡機能の変動を検討した結果、被験者6名の証の経絡のBP値の変動は本治法を行うことによって全例において増加した。今回の研究結果から、経絡機能の変動の客観化にAMIを使用することができる一証拠を提出できたものと思われる。今後、さらにAMIを使用し診断と鍼治療の関係を多面的に検討して行きたい。


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 1992

Defense mechanism of a living body and needle moxibustion medicine.

Yasuzo Kurono; Tatsuyo Ishigami; Sigeru Hori; Hironori Nakamura; Ko Yamada; Yoshiyuki Kawase; Yoshihiro Karino; Yosio Mabuchi; Nakazo Watari

古来より鍼灸治療の有効性については経験的によく知られている。近年, 鍼灸治療の有効性のメカニズムの研究が盛んに行われ, 実証医学的に明らかになってきつつある。我々も, 鍼灸の効果について多角的に研究し, 多くの研究成果を報告してきた。ここでは, 古典でいう「未だ病ざる病を医す」の理論と, 臨床の現場において得られる, 多くの現象から鍼灸治療が生体恒常性維持機構の活性や生体防御機構の増強に大いに関わりがあることに着目し, それを実証医学的に証明する目的でマウスに2年間刺鍼し, その有効性を超微形態変化によって検討した。対照群では死亡率が33%であったが刺鍼群では25%の死亡率であった。今回実験に供したマウスの各臓器において老化の遅延と生体防御機構の増強と生体恒常性維持機構の活性化に種々の影響が与えられていることが示唆された。この結果から, 古典でいう「未だ病ざる病を医す」と臨床鍼灸が, 生体恒常性維持機構と生体防御機構との相関を有していることの一証拠を提出したと言える。


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 1985

A case report concerning acupuncture therapy on diabetic patients (II)

Hironori Nakamura; Yasuzo Kurono; Nakazo Watari

糖尿病患者における合併症の進行程度が異なった3例に対して鍼治療を施し, その比較を観察した。対象患者は糖尿病と診断された3名で, 約3ヶ月から1年間にわたり, 毎日または週2回以上の鍼治療を施し, 自覚症状とFBS (Fasting blood sugar) を指標に糖尿病のコントロール状態を観察した。鍼治療開始後より, 自覚症状が徐々に軽減し, FBSについても改善がみられた。しかし, 鍼治療の間隔が長くなったり中止したりすると, 血糖値が不安定になる傾向がみられた。そのため, 糖尿病に対しては鍼治療の頻度を高くし, 長期にわたる治療が必要であると思われた。


Journal of Smooth Muscle Research | 2009

Acupuncture modulates mechanical responses of smooth muscle produced by transmural nerve stimulation in gastric antrum of genetically hyperglycemic rats

Hiroyasu Fukuta; Makoto Koshita; Eri Nakamura; Hironori Nakamura; Atsushi Yamada; Yoshiyuki Kawase; Tatsuyo Ishigami; Yasuzo Kurono; Satoshi Iino; Hikaru Suzuki


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 2000

Effectiveness of the Zusanli (ST36) Point for Hypertension in acupuncture. Controlled clinical trials using the Envelope Method.

Yoshiyuki Kawase; Tatsuyo Ishigami; Shigeru Hori; Hironori Nakamura; Teruo Hattori; Norikazu Tanaka; Akira Kinuta; Hideyuki Hiramatsu; Munenori Minagawa; Yasuzo Kurono


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 1999

Controlled Clinical Trials Using the Envelope Method for Urinary Dysfunction. The Effectiveness of the zhongji (cv-3).

Munenori Minagawa; Tatsuyo Ishigami; Shigeru Hori; Norikazu Tanaka; Hironori Nakamura; Yoshiyuki Kawase; Teruo Hattori; Akira Kinuta; Hidetaka Hiramatu; Hisashi Kouda; Yoshikazu Tanaka; Hiroyasu Fukuda; Ako Nakamura; Tomoyuki Izawa; Haruhiko Ijima; Takayuki Nakamura; Yasuzo Kurono


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 1999

A Case of Acupuncture Therapy for Diabetes. A Patient with Hypoglycemia due to Insulin Treatment.

Hironori Nakamura; Akira Kinuta; Yasuzo Kurono


Zen Nihon Shinkyu Gakkai Zasshi (journal of The Japan Society of Acupuncture and Moxibustion) | 2009

Validity of the acupuncture to prevention of a cold syndrome-The questionnaire by many institutions-

Kouji Kadomura; Tatsuyo Ishigami; Haruhiko Izima; Hironori Nakamura; Yoshiyuki Kawase; Hisashi Kouda; Yoshihiro Karino; Munenori Minagawa; Yasuzou Kurono

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