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383385 occurrences (No.47 in the rank) during 5 years in the PubMed. [no cache] 500 found

323) Serum supplementation during bovine embryo culture has been demonstrated to promote cell proliferation and preimplantation embryo development.

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PMID:34882691 DOI:10.1371/journal.pone.0260123

2021 PloS one

* Serum supplementation during bovine embryo culture affects their development and proliferation through macroautophagy and endoplasmic reticulum stress regulation.

- Serum supplementation during bovine embryo culture has been demonstrated to promote cell proliferation and preimplantation embryo development. However, these desirable outcomes, have been associated with gene expression alterations of pathways involved in macroautophagy, growth, and development at the blastocyst stage, as well as with developmental anomalies such as fetal overgrowth and placental malformations. In order to start dissecting the molecular pathways by which serum supplementation of the culture medium during the preimplantation stage promotes developmental abnormalities, we examined blastocyst morphometry, inner cell mass and trophectoderm cell allocations, macroautophagy, and endoplasmic reticulum stress. On day 5 post-insemination, > 16 cells embryos were selected and cultured in medium containing 10% serum or left as controls. Embryo diameter, inner cell mass and trophectoderm cell number, and macroautophagy were measured on day 8 blastocysts (BL) and expanded blastocysts (XBL). On day 5 and day 8, we assessed transcript level of the ER stress markers HSPA5, ATF4, MTHFD2, and SHMT2 as well as XBP1 splicing (a marker of the unfolded protein response). Serum increased diameter and proliferation of embryos when compared to the no-serum group. In addition, serum increased macroautophagy of BL when compared to controls, while the opposite was true for XBL. None of the genes analyzed was differentially expressed at any stage, except that serum decreased HSPA5 in day 5 > 16 cells stage embryos. XBP1 splicing was decreased in BL when compared to XBL, but only in the serum group. Our data suggest that serum rescues delayed embryos by alleviating endoplasmic reticulum stress and promotes development of advanced embryos by decreasing macroautophagy.

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(1)207 of	(6)5 is	(11)3 process	(16)2 process,
(2)74 and	(7)5 to	(12)2 aid	(17)2 programmes
(3)68 null	(8)4 has	(13)2 but	(18)2 programs
(4)13 in	(9)4 the	(14)2 for	(19)2 research
(5)5 Goals	(10)3 are	(15)2 implementation	(20)2 studies

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--- WordNet output for development --- =>発達, 開発, 産物, 進展 Overview of noun development The noun development has 9 senses (first 7 from tagged texts) 1. (52) development -- (act of improving by expanding or enlarging or refining; "he congratulated them on their development of a plan to meet the emergency"; "they funded research and development") 2. (46) development, evolution -- (a process in which something passes by degrees to a different stage (especially a more advanced or mature stage); "the development of his ideas took many years"; "the evolution of Greek civilization"; "the slow development of her skill as a writer") 3. (11) growth, growing, maturation, development, ontogeny, ontogenesis -- ((biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children") 4. (9) development -- (a recent event that has some relevance for the present situation; "recent developments in Iraq"; "what a revolting development!") 5. (7) exploitation, development -- (the act of making some area of land or water more profitable or productive or useful; "the development of Alaskan resources"; "the exploitation of copper deposits") 6. (6) development -- (a district that has been developed to serve some purpose; "such land is practical for small park developments") 7. (4) development -- (a state in which things are improving; the result of developing (as in the early part of a game of chess); "after he saw the latest development he changed his mind and became a supporter"; "in chess your should take care of your development before moving your queen") 8. development, developing -- (processing a photosensitive material in order to make an image visible; "the development and printing of his pictures took only two hours") 9. development -- ((music) the section of a composition or movement (especially in sonata form) where the major musical themes are developed and elaborated) --- WordNet end ---