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Kiyotake Ichizuka

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Parathyroid Hormone-Related Protein

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Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Shoko Hamada; Akihiko Sekizawa; Takashi Okai
Distribution of nuchal translucency thickness in Japanese fetuses.
Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Vasa previa is not infrequent.
Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Ayumi Okuyama; Akihiko Sekizawa; Shoko Hamada; Takashi Okai
Gestational weight loss has adverse effects on placental development.

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2013: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Shoko Hamada; Akihiko Sekizawa; Takashi Okai
Distribution of nuchal translucency thickness in Japanese fetuses.
The journal of obstetrics and gynaecology research 2013;39(4):766-9.
2012: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Vasa previa is not infrequent.
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2012;25(12):2795-6.
2012: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Ayumi Okuyama; Akihiko Sekizawa; Shoko Hamada; Takashi Okai
Gestational weight loss has adverse effects on placental development.
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2012;25(10):1909-12.
2012: Kiyotake Ichizuka; Ryu Matsuoka; M Nakamura; Takashi Okai; Akihiko Sekizawa; Junichi Hasegawa; S Umemura
High-intensity focused ultrasound treatment for twin reversed arterial perfusion sequence.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2012;40(4):476-8.
2012: Masamitsu Nakamura; Akihiko Sekizawa; Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuaka; Takashi Mimura; Takashi Okai
Amount of hemorrhage during vaginal delivery correlates with length from placental edge to external os in cases with low-lying placenta whose length between placental edge and internal os was 1-2 cm.
The journal of obstetrics and gynaecology research 2012;38(8):1041-5.
2012: Junko Yotsumoto; Yuditiya Purwosunu; Akihiko Sekizawa; Kiyotake Ichizuka; Hiroshi Kawame; Keiko Koide; Ryu Matsuoka; Takashi Okai
Attitudes toward non-invasive prenatal diagnosis among pregnant women and health professionals in Japan.
Prenatal diagnosis 2012;32(7):674-9.
2012: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Shoko Hamada; Akihiko Sekizawa; Takashi Okai
Prediction of hemorrhage in placenta previa.
Taiwanese journal of obstetrics & gynecology 2012;51(1):3-6.
2011: Shoko Hamada; Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Ultrasonographic findings of placenta lacunae and a lack of a clear zone in cases with placenta previa and normal placenta.
Prenatal diagnosis 2011;31(11):1062-5.
2011: Junichi Hasegawa; Kiyotake Ichizuka; Otsuki Katsufumi; Ryu Matsuoka; Masamitsu Nakamura; Kaori Arakawa; Akihiko Sekizawa; Takashi Okai
Analysis of placental weight centiles is useful to estimate cause of fetal growth restriction.
The journal of obstetrics and gynaecology research 2011;37(11):1658-65.
2011: J Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; M Nakamura; Antonio Farina; Akihiko Sekizawa; Takashi Okai
Location of the placenta or the umbilical cord insertion site in the lowest uterine segment is associated with low maternal blood pressure.
BJOG : an international journal of obstetrics and gynaecology 2011;118(12):1464-9.
2011: Junichi Hasegawa; Kiyotake Ichizuka; Shinji Iwasaki; Ryu Matsuoka; Akihiko Sekizawa; Takashi Okai
Velamentous cord insertion caused by oblique implantation after in vitro fertilization and embryo transfer.
The journal of obstetrics and gynaecology research 2011;37(11):1698-701.
2011: Junichi Hasegawa; Miwa Higashi; Kiyotake Ichizuka; Ryu Matsuoka; Takashi Mimura; Masamitsu Nakamura; Akihiko Sekizawa; Shoko Takahashi; Takashi Okai
Can ultrasonography of the placenta previa predict antenatal bleeding?
Journal of clinical ultrasound : JCU 2011;39(8):458-62.
2011: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Prediction of risk for vasa previa at 9-13 weeks' gestation.
The journal of obstetrics and gynaecology research 2011;37(10):1346-51.
2011: Takashi Mimura; Masamitsu Nakamura; Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Akihiko Sekizawa; Takashi Okai
Correlation between the cervical length and the amount of bleeding during cesarean section in placenta previa.
The journal of obstetrics and gynaecology research 2011;37(7):830-5.
2011: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; Takashi Mimura; Masamitsu Nakamura; Shoko Hamada; Akihiko Sekizawa; Takashi Okai
Localization of the embryo in the lower part of the gestational sac at 6-7 weeks' gestation is associated with placenta previa.
Fetal diagnosis and therapy 2011;30(3):203-6.
2010: Junichi Hasegawa; Antonio Farina; Masamitsu Nakamura; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Analysis of the ultrasonographic findings predictive of vasa previa.
Prenatal diagnosis 2010;30(12-13):1121-5.
2010: Junichi Hasegawa; T Mimura; T Morimoto; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Detection of umbilical venous constriction by Doppler flow measurement at midgestation.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2010;36(2):196-201.
2010: Junichi Hasegawa; Masamitsu Nakamura; Ryu Matsuoka; Takashi Mimura; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Evaluation of placental function using near infrared spectroscopy during fetal growth restriction.
Journal of perinatal medicine 2010;38(1):29-32.
2009: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; T Mimura; Akihiko Sekizawa; Antonio Farina; Takashi Okai
Predisposing factors for massive hemorrhage during Cesarean section in patients with placenta previa.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2009;34(1):80-4.
2009: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Ultrasound diagnosis and management of umbilical cord abnormalities.
Taiwanese journal of obstetrics & gynecology 2009;48(1):23-7.
2009: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Mihoko Kotani; Masamitsu Nakamura; Takao Mikoshiba; Akihiko Sekizawa; Takashi Okai
Atypical variable deceleration in the first stage of labor is a characteristic fetal heart-rate pattern for velamentous cord insertion and hypercoiled cord.
The journal of obstetrics and gynaecology research 2009;35(1):35-9.
2009: Minoru Kurita; Junichi Hasegawa; Takao Mikoshiba; Yuditiya Purwosunu; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Ultrasound evaluation of the amount of Wharton's jelly and the umbilical coiling index.
Fetal diagnosis and therapy 2009;26(2):85-9.
2009: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Umbilical cord insertion site in early gestation and development of placenta.
Journal of perinatal medicine 2009;37(5):481-5.
2009: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Do fetal heart rate deceleration patterns during labor differ between various umbilical cord abnormalities?
Journal of perinatal medicine 2009;37(3):276-80.
2008: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Mihoko Kotani; Azumi Ohmori; Masamitsu Nakamura; Akihiko Sekizawa; Takashi Okai
Intrapartum fetal heart rate pattern in oligohydramnios.
Fetal diagnosis and therapy 2008;24(3):267-70.
2007: Kiyotake Ichizuka; S Ando; Mitsuyoshi Ichihara; T Ishikawa; N Uchiyama; Kazuaki Sasaki; Shin-ichiro Umemura; Ryu Matsuoka; Akihiko Sekizawa; Takashi Okai; Tomoko Akabane; Miki Kushima
Application of high-intensity focused ultrasound for umbilical artery occlusion in a rabbit model.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2007;30(1):47-51.
2007: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Hiroshi Fujikawa; Akihiko Sekizawa; Takashi Okai
Umbilical cord insertion to the lower uterine segment is a risk factor for vasa previa.
Fetal diagnosis and therapy 2007;22(5):358-60.
2006: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; K Otsuki; Akihiko Sekizawa; Antonio Farina; Takashi Okai
Cord insertion into the lower third of the uterus in the first trimester is associated with placental and umbilical cord abnormalities.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2006;28(2):183-6.
2006: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Antonio Farina; Takashi Okai
Velamentous cord insertion into the lower third of the uterus is associated with intrapartum fetal heart rate abnormalities.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2006;27(4):425-9.
2006: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Takashi Okai
Velamentous cord insertion: significance of prenatal detection to predict perinatal complications.
Taiwanese journal of obstetrics & gynecology 2006;45(1):21-5.
2005: Junichi Hasegawa; Ryu Matsuoka; Kiyotake Ichizuka; Akihiko Sekizawa; Antonio Farina; Takashi Okai
Velamentous cord insertion and atypical variable decelerations with no accelerations.
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics 2005;90(1):26-30.
2005: Kiyotake Ichizuka; Ryu Matsuoka; Junichi Hasegawa; Nahoko Shirato; Masatoshi Jimbo; Katsufumi Otsuki; Akihiko Sekizawa; Antonio Farina; Takashi Okai
The Tei index for evaluation of fetal myocardial performance in sick fetuses.
Early human development 2005;81(3):273-9.
2005: Junichi Hasegawa; Kiyotake Ichizuka; Ryu Matsuoka; K Otsuki; Akihiko Sekizawa; Takashi Okai
Limitations of conservative treatment for repeat Cesarean scar pregnancy.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2005;25(3):310-1.
2004: Akihiko Sekizawa; Antonio Farina; Keiko Koide; Mariko Iwasaki; Susumu Honma; Kiyotake Ichizuka; Hiroshi Saito; Takashi Okai
beta-globin DNA in maternal plasma as a molecular marker of pre-eclampsia.
Prenatal diagnosis 2004;24(9):697-700.
2004: Antonio Farina; Akihiko Sekizawa; Mariko Iwasaki; Ryu Matsuoka; Kiyotake Ichizuka; Takashi Okai
Total cell-free DNA (beta-globin gene) distribution in maternal plasma at the second trimester: a new prospective for preeclampsia screening.
Prenatal diagnosis 2004;24(9):722-6.
2003: Tetsuya Ishikawa; Takashi Okai; Kazuaki Sasaki; Shin-ichiro Umemura; Rei Fujiwara; Miki Kushima; Mitsuyoshi Ichihara; Kiyotake Ichizuka
Functional and histological changes in rat femoral arteries by HIFU exposure.
Ultrasound in medicine & biology 2003;29(10):1471-7.
2003: Masatoshi Jimbo; Akihiko Sekizawa; Yumi Sugito; Ryu Matsuoka; Kiyotake Ichizuka; Hiroshi Saito; Takashi Okai
Placenta increta: Postpartum monitoring of plasma cell-free fetal DNA.
Clinical chemistry 2003;49(9):1540-1.
2003: Akihiko Sekizawa; Kaori Yokokawa; Yumi Sugito; Mariko Iwasaki; Yasuo Yukimoto; Kiyotake Ichizuka; Hiroshi Saito; Takashi Okai
Evaluation of bidirectional transfer of plasma DNA through placenta.
Human genetics 2003;113(4):307-10.
2001: S Hoshi; T Morimoto; Hiroshi Saito; Kiyotake Ichizuka; Ryu Matsuoka; Atsushi Yanaihara; M Suzuki; Takumi Yanaihara; Takashi Okai
PTHrP and PTH/PTHrP receptor expressions in human endometrium.
Endocrine journal 2001;48(2):219-25.
2000: Y Sasaki; T Morimoto; Hiroshi Saito; M Suzuki; Kiyotake Ichizuka; Takumi Yanaihara
The role of parathyroid hormone-related protein in intra-tracheal fluid.
Endocrine journal 2000;47(2):169-75.
1999: Kiyotake Ichizuka; T Morimoto; M Suzuki; Y Sasaki; H Kurihara; Hiroshi Saito; Takumi Yanaihara
The effect of cytokines on parathyroid hormone-related protein (PTH-rP) production in human amnion cells.
Endocrine journal 1999;46(4):479-86.