{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T10:56:19Z","timestamp":1768560979182,"version":"3.49.0"},"reference-count":42,"publisher":"The Korean Society for Reproductive Medicine","issue":"4","license":[{"start":{"date-parts":[[2023,11,21]],"date-time":"2023-11-21T00:00:00Z","timestamp":1700524800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Korea Health Technology R&D Project"},{"DOI":"10.13039\/501100003710","name":"Korea Health Industry Development Institute","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003710","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ministry of Health & Welfare of the Republic of Korea","award":["HI21C135003"],"award-info":[{"award-number":["HI21C135003"]}]},{"name":"Ministry of Health & Welfare of the Republic of Korea","award":["HI21C1639"],"award-info":[{"award-number":["HI21C1639"]}]}],"content-domain":{"domain":["ecerm.org"],"crossmark-restriction":true},"short-container-title":["Clin Exp Reprod Med"],"published-print":{"date-parts":[[2023,12,1]]},"abstract":"<jats:p>Objective: We evaluated the efficacy of the newly developed optimized &lt;i&gt;in vitro&lt;\/i&gt; culture (OIVC) dish for cultivating preimplantation mouse embryos. This dish minimizes the need for mineral oil and incorporates microwells, providing a stable culture environment and enabling independent monitoring of individual embryos.Methods: Mouse pronuclear (PN) zygotes and two-cell-stage embryos were collected at 18 and 46 hours after human chorionic gonadotropin injection, respectively. These were cultured for 120 hours using potassium simplex optimized medium (KSOM) to reach the blastocyst stage. The embryos were randomly allocated into three groups, each cultured in one of three dishes: a 60-mm culture dish, a microdrop dish, and an OIVC dish that we developed.Results: The OIVC dish effectively maintained the osmolarity of the KSOM culture medium over a 5-day period using only 2 mL of mineral oil. This contrasts with the significant osmolarity increase observed in the 60-mm culture dish. Additionally, the OIVC dish exhibited higher blastulation rates from two-cell embryos (100%) relative to the other dish types. Moreover, blastocysts derived from both PN zygotes and two-cell embryos in the OIVC dish group demonstrated significantly elevated mean cell numbers.Conclusion: Use of the OIVC dish markedly increased the number of cells in blastocysts derived from the &lt;i&gt;in vitro&lt;\/i&gt; culture of preimplantation mouse embryos. The capacity of this dish to maintain medium osmolarity with minimal mineral oil usage represents a breakthrough that may advance embryo culture techniques for various mammals, including human &lt;i&gt;in vitro&lt;\/i&gt; fertilization and embryo transfer programs.<\/jats:p>","DOI":"10.5653\/cerm.2023.06436","type":"journal-article","created":{"date-parts":[[2023,11,21]],"date-time":"2023-11-21T02:04:14Z","timestamp":1700532254000},"page":"244-252","update-policy":"https:\/\/doi.org\/10.5653\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Enhancement of preimplantation mouse embryo development with optimized in vitro culture dish via stabilization of medium 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