Publications by authors named "Ryo Obara"

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Risk of Major Congenital Malformations Associated With First-Trimester Exposure to Topical Antifungal Medications: A Large Claims Database Study.
Tadaharu Kunitoki, Takamasa Sakai, Tomofumi Ishikawa, Ryo Obara, Kei Morishita, Taku Obara

Pharmacoepidemiol Drug Saf· December 2025

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Perinatal Outcomes After the Use of Kampo Medicines Containing Ephedra During Pregnancy.
Aoi Noda, Ryutaro Arita, Taku Obara, Minoru Ohsawa, Satoko Suzuki, Ryo Obara

Pharmacoepidemiol Drug Saf· November 2025

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Association of Quinolone Exposure in the First-Trimester of Pregnancy and the Risk of Major Congenital Malformations: A Health Administrative Database Study in Japan.
Kei Morishita, Taku Obara, Tomofumi Ishikawa, Ryo Obara, Takamasa Sakai

Pharmacoepidemiol Drug Saf· September 2025

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Association between exposure to atypical antipsychotics during pregnancy and risk of miscarriage.
Tomofumi Ishikawa, Takamasa Sakai, Noriyuki Iwama, Ryo Obara, Kei Morishita, Taku Obara

Acta Psychiatr Scand· December 2024

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The Use of Japanese Traditional (Kampo) Medicines Before and During Pregnancy in Japan: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.
Aoi Noda, Ryutaro Arita, Taku Obara, Satoko Suzuki, Minoru Ohsawa, Ryo Obara

Pharmacoepidemiol Drug Saf· October 2024

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Combination of taking neuropsychiatric medications and psychological distress in pregnant women, with behavioral problems in children at 2 years of age: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.
Ippei Takahashi, Taku Obara, Saya Kikuchi, Natsuko Kobayashi, Ryo Obara

PCN Rep· September 2024

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Medication use before and during pregnancy in Japan: the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.
Aoi Noda, Taku Obara, Matsuyuki Shirota, Fumihiko Ueno, Fumiko Matsuzaki, Ryo Obara

Eur J Clin Pharmacol· August 2024

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Polyorchidism in a young Sprague-Dawley rat.
Ryo D Obara, Yuki Kato, Yoshiji Asaoka, Kae Fujisawa, Emi Kashiwagi

J Toxicol Pathol· July 2024

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Risk of Major Congenital Malformations Associated with the Use of Japanese Traditional (Kampo) Medicine Containing Ephedra During the First Trimester of Pregnancy.
Aoi Noda, Taku Obara, Fumiko Matsuzaki, Satoko Suzuki, Ryutaro Arita, Ryo Obara

Drugs Real World Outcomes· June 2024

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FOUR-WEEK ORAL ADMINISTRATION OF BALOXAVIR MARBOXIL AS AN ANTI-INFLUENZA VIRUS DRUG SHOWS NO TOXICITY IN CHICKENS.
Mariko Miki, Ryo Daniel Obara, Kyohei Nishimura, Takao Shishido, Yoshinori Ikenaka

J Zoo Wildl Med· June 2024

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Reducing the use of psychotropics in a convalescent rehabilitation ward.
Takuya Uematsu, Takashi Tomita, Ryo Obara, Takuya Gonai, Koshi Hattori

Neuropsychopharmacol Rep· March 2024

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Temporal trends in antipsychotic prescriptions for pediatric patients using an administrative hospital database in Japan: a retrospective study.
Daisuke Kikuchi, Taku Obara, Ryo Obara, Hiroaki Hino, Naoto Suzuki

J Pharm Health Care Sci· January 2024

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Effect of antipsychotics on serum lithium levels and white blood cell counts.
Ryo Obara, Takashi Tomita, Hidekazu Goto, Yukinao Kohda, Tadashi Yoshida

Neuropsychopharmacol Rep· December 2021

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Suspected spontaneous hyperadrenocorticism in a young experimental beagle dog.
Ryo D Obara, Yuki Kato, Yoshiji Asaoka, Miho Mukai, Keigo Matsuyama

J Toxicol Pathol· July 2021

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Functional alteration of canine isocitrate dehydrogenase 2 (IDH2) via an R174K mutation.
Shota Kawakami, Kazuhiko Ochiai, Yuiko Kato, Masaki Michishita, Hinako Hirama, Ryo Obara

J Vet Med Sci· January 2018

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