An azoospermic factor gene, Ddx3y and its paralog, Ddx3x are dispensable in germ cells for male fertility by Takafumi MATSUMURA, Tsutomu ENDO, Ayako ISOTANI, Masaki OGAWA, Masahito IKAWA

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Paracrine regulation of granulosa cell development in the antral follicles in mammals by Koji Sugiura, Natsumi Maruyama, Yuki Akimoto, Kodai Matsushita, Tsutomu Endo

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Age-related decline in spermatogenic activity accompanied with endothelial cell senescence in male mice by Manabu Ozawa, Hideto Mori, Tsutomu Endo, Yu Ishikawa-Yamauchi, Daisuke Motooka, Chihiro Emori, Masahiro Ikawa

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Accumulation of senescent cells in the stroma of aged mouse ovary by Natsumi MARUYAMA, Isuzu FUKUNAGA, Tomoaki KOGO, Tsutomu ENDO, Wataru FUJII, Masami KANAI-AZUMA, Kunihiko NAITO, Koji SUGIURA

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Low-Grade Inflammation in the Pathogenesis of Osteoarthritis: Cellular and Molecular Mechanisms and Strategies for Future Therapeutic Intervention by M Alaa Terkawi, Taku Ebata, Shunichi Yokota, Daisuke Takahashi, Tsutomu Endo, Gen Matsumae, Tomohiro Shimizu, Ken Kadoya, Norimasa Iwasaki

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Characteristics of older patients with postmenopausal osteoporosis who developed loss of muscle mass during the COVID-19 pandemic – a case–control study by Masaru Tanaka, Masahiro Kanayama, Tomoyuki Hashimoto, Fumihiro Oha, Yukitoshi Shimamura, Takeru Tsujimoto, Yuichi Hasegawa, Tsutomu Endo, Hidetoshi Nojiri, Muneaki Ishijima

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Four-dimensional anatomical spinal reconstruction using pre-bent rods in thoracic adolescent idiopathic scoliosis by Akira Fukushima, Takashi Ohnishi, Terufumi Kokabu, Yuichiro Abe, Hiroyuki Tachi, Tsutomu Endo, Daisuke Ukeba, Norimasa Iwasaki, Katsuhisa Yamada, Hideki Sudo

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Posterior lumbar fusion surgery doesn’t change sexual activities in patients with lumbar degenerative disease: an observational study by Yukitoshi Shimamura, Masahiro Kanayama, Michiko Horio, Ai Yamaguchi, Fumihiro Oha, Takeru Tsujimoto, Masaru Tanaka, Yuichi Hasegawa, Tsutomu Endo, Tomoyuki Hashimoto

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Strong relationship between dyslipidemia and the ectopic ossification of the spinal ligaments by Tsutomu Endo, Masahiko Takahata, Ryo Fujita, Yoshinao Koike, Ryota Suzuki, Yuichi Hasegawa, Toshifumi Murakami, Misaki Ishii, Katsuhisa Yamada, Hideki Sudo, Norimasa Iwasaki

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Evaluation of Surgical Indications for Full Endoscopic Discectomy at Lumbosacral Disc Levels Using Three-Dimensional Magnetic Resonance/Computed Tomography Fusion Images Created wi... by Katsuhisa Yamada, Ken Nagahama, Yuichiro Abe, Yoshinori Hyugaji, Daisuke Ukeba, Tsutomu Endo, Takashi Ohnishi, Katsuro Ura, Hideki Sudo, Norimasa Iwasaki, Masahiko Takahata

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A small secreted protein NICOL regulates lumicrine-mediated sperm maturation and male fertility by Daiji Kiyozumi, Kentaro Shimada, Michael Chalick, Chihiro Emori, Mayo Kodani, Seiya Oura, Taichi Noda, Tsutomu Endo, Martin M. Matzuk, Daniel H. Wreschner, Masahito Ikawa

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A possible function of Nik-related kinase in the labyrinth layer of delayed delivery mouse placentas by Hiroshi YOMOGITA, Hikaru ITO, Kento HASHIMOTO, Akihiko KUDO, Toshiaki FUKUSHIMA, Tsutomu ENDO, Yoshikazu HIRATE, Yoshihiro AKIMOTO, Masayuki KOMADA, Yoshiakira KANAI, Naoyuki MIYASAKA, Masami KANAI-AZUMA

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Age-associated aberrations of the cumulus-oocyte interaction and in the zona pellucida structure reduce fertility in female mice by Yu Ishikawa-Yamauchi, Chihiro Emori, Hideto Mori, Tsutomu Endo, Kiyonori Kobayashi, Yuji Watanabe, Hiroshi Sagara, Takeshi Nagata, Daisuke Motooka, Akinori Ninomiya, Manabu Ozawa, Masahito Ikawa

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Targeting of retrovirus-derived Rtl8a/8b causes late-onset obesity, reduced social response and increased apathy-like behaviour by Yoshifumi Fujioka, Hirosuke Shiura, Masayuki Ishii, Ryuichi Ono, Tsutomu Endo, Hiroshi Kiyonari, Yoshikazu Hirate, Hikaru Ito, Masami Kanai-Azuma, Takashi Kohda, Tomoko Kaneko-Ishino, Fumitoshi Ishino

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Lumbar ossification of the ligamentum flavum reflects a strong ossification tendency of the entire spinal ligament by Kazuha Nakabachi, Tsutomu Endo, Masahiko Takahata, Ryo Fujita, Yoshinao Koike, Ryota Suzuki, Yuichi Hasegawa, Toshifumi Murakami, Katsuhisa Yamada, Hideki Sudo, Mohamad Alaa Terkawi, Ken Kadoya, Norimasa Iwasaki

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Multiple ageing effects on testicular/epididymal germ cells lead to decreased male fertility in mice by Tsutomu Endo, Kiyonori Kobayashi, Takafumi Matsumura, Chihiro Emori, Manabu Ozawa, Shimpei Kawamoto, Daisuke Okuzaki, Keisuke Shimada, Haruhiko Miyata, Kentaro Shimada, Mayo Kodani, Yu Ishikawa-Yamauchi, Daisuke Motooka, Eiji Hara, Masahito Ikawa

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Therapeutic Potential of Targeting Ferroptosis in Periprosthetic Osteolysis Induced by Ultra-High-Molecular-Weight Polyethylene Wear Debris by Takuya Ogawa, Shunichi Yokota, Liyile Chen, Yuki Ogawa, Yoshio Nishida, Taiki Tokuhiro, Hend Alhasan, Tomoyo Yutani, Tomohiro Shimizu, Daisuke Takahashi, Takuji Miyazaki, Tsutomu Endo, Ken Kadoya, Mohamad Alaa Terkawi, Norimasa Iwasaki

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Chondroprotective functions of neutrophil-derived extracellular vesicles by promoting the production of secreted frizzled-related protein 5 in cartilage by Keita Kitahara, Taku Ebata, Chen Liyile, Yoshio Nishida, Yuki Ogawa, Taiki Tokuhiro, Junki Shiota, Tatsuya Nagano, Taichi E. Takasuka, Tsutomu Endo, Tomohiro Shimizu, Hend Alhasan, Tsuyoshi Asano, Daisuke Takahashi, Kentaro Homan, Tomohiro Onodera, Ken Kadoya, M. Alaa Terkawi, Norimasa Iwasaki

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Genetic insights into ossification of the posterior longitudinal ligament of the spine by Yoshinao Koike, Masahiko Takahata, Masahiro Nakajima, Nao Otomo, Hiroyuki Suetsugu, Xiaoxi Liu, Tsutomu Endo, Shiro Imagama, Kazuyoshi Kobayashi, Takashi Kaito, Satoshi Kato, Yoshiharu Kawaguchi, Masahiro Kanayama, Hiroaki Sakai, Takashi Tsuji, Takeshi Miyamoto, Hiroyuki Inose, Toshitaka Yoshii, Masafumi Kashii, Hiroaki Nakashima, Kei Ando, Yuki Taniguchi, Kazuhiro Takeuchi, Shuji Ito, Kohei Tomizuka, Keiko Hikino, Yusuke Iwasaki, Yoichiro Kamatani, Shingo Maeda, Hideaki Nakajima, Kanji Mori, Atsushi Seichi, Shunsuke Fujibayashi, Tsukasa Kanchiku, Kei Watanabe, Toshihiro Tanaka, Kazunobu Kida, Sho Kobayashi, Masahito Takahashi, Kei Yamada, Hiroshi Takuwa, Hsing-Fang Lu, Shumpei Niida, Kouichi Ozaki, Yukihide Momozawa, Genetic Study Group of Investigation Committee on Ossification of the Spinal Ligaments, Masashi Yamazaki, Atsushi Okawa, Morio Matsumoto, Norimasa Iwasaki, Chikashi Terao, Shiro Ikegawa

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