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KMID : 0311119740150010011
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Yonsei Medical Journal
1974 Volume.15 No. 1 p.11 ~ p.16
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The Maturation in Vitro of The Rabbit Oocytes I. Amino Acids Support the Maturation In Vitro of the Rabbit Oocytes
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Chung, Soon O
Bae, In-Ha/Cho, Wan Kyoo
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Abstract
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Rabbit follicular oocytes were cultured in a medium supplemented with various elements such as bovine serum(BS), bovine serum albumin(BSA), amino acids and chorionic gonadotrophic hormone(HCG) in order to find which factors among them were most effective for oocyte maturation.
The presence of BSA in the basic medium (modified Krebs-Ringer bicarbonate) did not elevate the proportion of oocyte maturation. When BS alone was added to the medium, only a few oocytes could reach to metaphase I and most of them were in degeneration. This implies that BS may act as an inhibitory or a toxic agent to the rabbit oocytes.
It was found that the medium supplemented with 0.4% BSA and amino acids together raised the proportion of the oocyte maturation (54-62%). Especially the presence of proline, or of both proline and glutamine, gave a more favourable condition for the initiation of meiotic division than other amino acids. Addition of HCG to the medium did not promote the proportion of the oocyte maturation.
As a consequence, it is apparent that amino acids in the medium are the most essential-factors in inducing oocyte meiotic division.
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