PMID: 19915336Nov 17, 2009Paper

Serum levels of reproductive hormones and ultrasonographic monitoring of ovarian follicles in female cloned dogs

The Journal of Veterinary Medical Science
So Gun HongB C Lee

Abstract

This study investigated the reproductive characteristics in 2 cloned female beagle dogs (Clones A and B) during proestrus and early estrus. The pre-ovulatory estradiol peak occurred 2 days before the pre-ovulatory luteinizing hormone (LH) surge, while the follicle stimulating hormone surge started concomitantly with the LH surge in both cloned dogs. Serum progesterone levels increased during proestrus and estrus and its concentration on the day of the LH surge was 3.59 and 2.71 ng/ml in Clones A and B, respectively. Gradual follicular growth was observed by ultrasonography during proestrus. Although the numbers are limited, these cloned female dogs showed normal ranges of reproductive hormone levels and follicular changes during proestrous and early estrous stages of the cycle.

References

Sep 28, 2000·Journal of Reproduction and Fertility·S D JohnstonV Nicolson
Jan 24, 2002·Biology of Reproduction·B P EnrightX Yang
Mar 5, 2002·Nature Medicine·Kellie L K TamashiroRandall R Sakai
Apr 23, 2002·Biology of Reproduction·Kristen E GovoniSteven A Zinn
Aug 5, 2005·Nature·Byeong Chun LeeWoo Suk Hwang
Mar 28, 2007·Cloning and Stem Cells·Min Kyu KimByeong Chun Lee
Jun 16, 2007·Birth Defects Research. Part B, Developmental and Reproductive Toxicology·Sabine RehmAnn M Williams
Jun 21, 2007·Cloning and Stem Cells·Eu-Gene ChoiIl-Keun Kong
Mar 24, 2010·Zygote : the Biology of Gametes and Early Embryos·S KimW S Hwang

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Citations

Aug 7, 2010·Theriogenology·Goo JangByeong Chun Lee
Aug 1, 2012·Reproduction in Domestic Animals = Zuchthygiene·M J KimB C Lee
Sep 9, 2015·Cellular Reprogramming·Goo Jang, ByeongChun Lee
Nov 27, 2018·Reproduction in Domestic Animals = Zuchthygiene·Seok Hee LeeByeong Chun Lee
Oct 6, 2015·Journal of Veterinary Science·Ji Hyun LeeByeong Chun Lee

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