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Kazumi Nakazawa

Keio University

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Featured researches published by Kazumi Nakazawa.

Placenta | 1999

Study on melatonin in human and rat placental tissue

Kazumi Nakazawa; Yoichi Kanakura; Kunio Kometani; Shinya Iwasaki; Yasunori Yosimura

Summary Human and rat placental tissues contain high levels of melatonin even during daytime. The alteration of placental melatonin suggests that the role of melatonin in the placenta differs from that in the pineal gland. Expression of the gene encoding AA-NAT strongly suggests that placental melatonin was synthesized in the placenta. However, the precise mechanism by which placental melatonin is regulated remains to be elucidated.

American Journal of Reproductive Immunology | 1996

Effects of Gonadotropin‐Releasing Hormone Agonist (GnRHa) and Ovariectomy on Leukocyte Subpopulations in Rats With Autotransplanted Endometrium

Hidehiko Matsubayashi; Ken-ichi Iwasaki; Tetsuo Maruyama; Nobuaki Ozawa; Taiko Nemoto; Shinya Iwasaki; Wen Shu Sun; Kazumi Nakazawa; Shiro Nozawa; Tsunehisa Makino

PROBLEM: To determine the effect of estrogen deficiency on populations of immune cells in rats with autotransplanted endometrium.

Endocrinologia Japonica | 1984

Immunohistochemical study on oxytocin-like substance in the human placenta.

Kazumi Nakazawa; Tsunehisa Makino; Rihachi Iizuka; Shinichi Kohsaka; Yasuzo Tsukada

Endocrinologia Japonica | 1983

Detection of immunoreactive human placental oxytocin and its contractile effect on the uterine muscle

Tsunehisa Makino; Kazumi Nakazawa; Kunio Ishii; Ichigen Haginiwa; Akihiko Nakayama; Rihachi Iizuka

Asia-Oceania journal of obstetrics and gynaecology | 2010

A Study on blood levels of Oxytocin and Neurophysins during labor and lactation

Kazumi Nakazawa; Tsunehisa Makino; Akihiko Nakayama; Takashi Nagai; Hideaki Suzuki; Rihachi Iizuka

Asia-Oceania journal of obstetrics and gynaecology | 2010

Uterine Contractile Effect of an Oxytocin-like Substance in the Human Placenta

Kazumi Nakazawa; Tsunehisa Makino; Takashi Nagai; Rihachi Lizuka; Kunio Lshii

Asia-Oceania journal of obstetrics and gynaecology | 2010

Study on Role of Oxytocin in Lactating Rats by Passive Immunization

Takashi Nagai; Tsunehisa Makino; Akihiko Nakayama; Kazumi Nakazawa; Hideaki Suzuki; Rihachi Iizuka

The Keio Journal of Medicine | 1980

HUMAN NEUROPHYSINS DURING PREGNANCY, PUERPERIUM AND MENSTRUAL CYCLES

Akihiko Nakayama; Tsunehisa Makino; Takashi Nagai; Kazumi Nakazawa; Hideaki Suzuki; Mitsutoshi Iwashita; Tsuneo Yokokura; Toranoshin Ohno; Rihachi Iizuka

Asia-Oceania journal of obstetrics and gynaecology | 2010

The Development of a Fetoscope and its Clinical Application

Tsunehisa Makino; Nobuhiro Uchida; Kazumi Nakazawa; Masaki Shiina; Toranoshin Ohno; Rihachi Lizuka

Placenta | 1998

Study on melatonin like substance in both human and rat placental tissue

Kazumi Nakazawa; Y. Kanakura; K. Kometanil; Shinya Iwasaki; Yasunori Yoshimura

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Tsunehisa Makino

Keio University

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Rihachi Iizuka

Keio University

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Akihiko Nakayama

Keio University

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Takashi Nagai

Keio University

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Hideaki Suzuki

Keio University

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Shinya Iwasaki

Keio University

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Rihachi Lizuka

Keio University

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Toranoshin Ohno

Keio University

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Atsushi Sakai

Keio University

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Hidehiko Matsubayashi

Keio University

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