Suzuki Hiroshi, Ishijima Takako, Maruyama Saori, Yanagimoto Ueta Yoshiko, Abe Yasuyuki, Saitoh Hideki
National Research Center of Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, 080-8555, Japan.
J Assist Reprod Genet. 2008 Nov-Dec;25(11-12):571-5. doi: 10.1007/s10815-008-9271-9. Epub 2008 Oct 30.
The main drawback of ovarian cryopreservation followed by transplantation is that a large proportion of follicles are lost after transplantation. Thus, effects of erythropoietin (EPO) and desialylated EPO administration on the frozen-thawed canine ovarian xenotransplantation were examined.
The protective and survival-promoting effects of EPO and desialylated EPO on the follicles of frozen-thawed canine ovaries after transplantation were examined using NOD-SCID mice. Frozen-thawed dog ovarian tissue with 400 U/kg of EPO or asialo EPO was placed into the ovarian bursa.
At 4 weeks after the transplantation, the ovaries were removed and subjected to histological examination. The survival rate of early primary follicles was 15.2% in the EPO group and 157.6% in the asialo EPO group, in contrast to 10.1% in the untreated group.
These results demonstrate that administration of asialo EPO could be effectively used to enhance the survival of the follicles of transplanted cryopreserved ovaries.
卵巢冷冻保存后再移植的主要缺点是移植后很大一部分卵泡会丢失。因此,研究了促红细胞生成素(EPO)和去唾液酸化EPO给药对冻融犬卵巢异种移植的影响。
使用NOD-SCID小鼠研究EPO和去唾液酸化EPO对移植后冻融犬卵巢卵泡的保护和促存活作用。将含有400 U/kg EPO或去唾液酸EPO的冻融犬卵巢组织置于卵巢囊内。
移植后4周,取出卵巢进行组织学检查。EPO组早期初级卵泡存活率为15.2%,去唾液酸EPO组为157.6%,未处理组为10.1%。
这些结果表明,给予去唾液酸EPO可有效提高移植的冷冻保存卵巢卵泡的存活率。