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JRD Vol. 71 (6) 2025–Vol. 72 (1) 2026の発刊のお知らせ
SRD会員の皆様へ
平素からThe Journal of Reproduction and Development (JRD) の刊行にご協力を頂き有難うございます。
Vol. 71 (6) および Vol. 72 (1) が発刊となりました。ご一読いただき，論文執筆の際には活用いただけますようお願いいたします。
またJRDでは皆様からの論文の投稿をお待ちしています。
JRD編集委員長 原山 洋
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JRD Vol. 72 (1)
Original Article
Effects of timing and morphology of blastomere cleavage on gene expression profiles of bovine in vitro fertilized embryos
Shunki ONO, Hinano KOZUKA, Kota OKUBO, Takashi FUJII, Ken SAWAI
Volume 72, Issue 1, Pages 1-7
Cover Story:
Although the in vitro production (IVP) of bovine embryos makes a particularly important contribution to promoting sire and calf production, the low rates of conception after embryo transfer (ET) using in vitro-fertilized (IVF) embryos, along with the large-offspring syndrome, are serious problems constraining the efficacy of bovine IVP systems. In this regard, Sawai et al. have demonstrated the feasibility of evaluating the functionality and viability of bovine IVF embryos based on the expression patterns of 11 key genes at the blastocyst stage. In the present study, we examined the effects of timing and morphology of blastomere cleavage on pre-implantation development and the expression of these genes in IVF bovine embryos (Ono et al. Effects of timing and morphology of blastomere cleavage on gene expression profiles of bovine in vitro fertilized embryos. p. 1–7). Our findings in this study indicate the potential applicability of multifaceted evaluation techniques for bovine IVF embryos and the selection of the most suitable candidates for ET.
Optimization of a comprehensive metabolomic analysis system for characterizing metabolic alterations in the cauda epididymis of mature and juvenile mice
Ryusei MAEDA, Satohiro NAKAO, Yuichiro ARIMA, Ayana SHITASHIMIZU, Keisuke MASUDA,
Naomi NAKAGATA, Toru TAKEO
Volume 72, Issue 1, Pages 8-15
Transgenic Bax gene efficiently induces lethality in mouse early embryos
Yuzuki GOTO, Takuto YAMAMOTO, Masahiro SAKATA, Satoshi MASHIKO, Daiki SHIKATA,
Shinnosuke HONDA, Naojiro MINAMI, Shuntaro IKEDA
Volume 72, Issue 1, Pages 16-23
ATAD2 deficiency leads to subfertility by impairing spermatogenesis in mice
Rui WU, Shuyun ZHAO, Qi YU, Yili ZHAO, Yan HAN, Rong LIU, ChaoQun DUAN
Volume 72, Issue 1, Pages 24-33
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JRD Vol. 71 (6)
Original Article
Effect of bovine oocyte transportation system on embryonic quality
Shunsuke HARA, Minori SHIDA, Kanami ABE, Koumei SHIRASUNA, Hisataka IWATA
Volume 71, Issue 6, Pages 301-309
DOI Cover Story:
Ovum pick-up (OPU) is widely used technique in livestock production. In general, OPU is performed to collect oocytes, which are then transported to the laboratory. During transportation, the oocytes are cultured in air atmosphere. Hara et al. examined the effects of oocyte transportation (conventional and modified methods) on embryonic quality (Hara S, et al. The effect of oocyte transportation on embryonic quality. p. 301–309). The conventional method induced mitochondrial dysfunction in oocytes and high DNA methylation in early embryos. However, the modified method, which uses a polysaccharide gel substrate, improved these effects. These results indicate that the modified method is a useful approach for oocyte transportation.
Technology Report
Evaluation of tubal patency with hysterosalpingo-contrast sonography using sodium alginate solution and the subsequent fertility outcomes in repeat breeder cattle
Kazuki ITO, Ryuji HASHIMOTO, Natsumi ENDO, Tomomi TANAKA
Volume 71, Issue 6, Pages 310-314
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