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Changes of Hypothalamic GnRH-I, POMC and NPY mRNA Expression and Serum IGF-I and Leptin Concentrations during Maturation of Shaoxing Ducks (Anas platyrhynchos)
Ni. Y., Lu. L., Chen. J., Zhao. Ruqian 아세아태평양축산학회 Asian-Australasian journal of animal sciences 6 Pages
아세아태평양축산학회 Asian-Australasian journal of animal sciences 2011, Vol.24 No.9 1211-1216 (6 pages)
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Induction of castration by immunization of male dogs with recombinant gonadotropin-releasing hormone (GnRH)-canine distemper virus (CDV) T helper cell epitope p35
Mi-Jeong Jung, Young-Chan Moon, Ik-Hyun Cho, Jung-Yong Yeh, Sun-Eui Kim, Wha-Seok Chang, Seung-Young Park, Chang-Seon Song, Hwi- 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2005, 제 6권 제 1호 3 21-24 (4 pages)
Immunocastration is a considerable alternative to a surgical castration method especially in male animal species for alleviating unwanted male behaviors and characteristics. Induction of high titer of antibody specific for gonadotropin-releasing hormone (GnRH) correlates with the regression of testes. Fusion proteins composed of canine GnRH and T helper (Th) cell epitope p35 originated from canine distemper virus (CDV) F protein and goat rotavirus VP6 protein were produced in E. coli. When these... -
Evaluation of immunocontraceptive vaccine composed of gonadotropin-releasing hormone conjugated with granulocyte-macrophage colony-stimulating factor in male rats
Byung-joo Park , Yong-hyun Kim , Hee-seop Ahn , Sang-hoon Han , Hyeon-jeong Go , Joong-bok Lee , Seung-yong Park , Chang 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 4 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2017, 제 57권 제 3호 2 155-158 (4 pages)
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Development of a new immunocastration vaccine composed of GnRH inserted at the head site of Salmonella flagellin
Byung Joo Park, Hee Seop Ahn, Sang Hoon Han, Yong Hyun Kim, Joong Bok Lee, Seung Yong Park, Chang Seon Song, Sang Won Lee, In Soo Choi 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 181 289-290 (2 pages)
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Effects of gonadotropin-releasing hormone administration or a controlled internal drug-releasing insert after timed artificial insemination on pregnancy rates of dairy cows
Jae Kwan Jeong, In Soo Choi, Hyun Gu Kang, Tai Young Hur, Ill Hwa Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 4호 18 577-582 (6 pages)
This study investigated the effects of gonadotrophin-releasing hormone (GnRH) administration (Experiment 1) and a controlled internal drug-releasing (CIDR) insert (Experiment 2) after timed artificial insemination (TAI) on the pregnancy rates of dairy cows. In Experiment 1, 569 dairy cows that underwent TAI (day 0) following short-term synchronization with prostaglandin F2α were randomly allocated into two groups: no further treatment (control, n = 307) or injection of 100 μg of gonadorelin on... -
Evaluation of the effect of a 3rd GnRH injection administered six days after the 2nd GnRH injection of Ovsynch on the reproductive performance of Japanese black cows
Abdurraouf Omar Gaja, Katsumi Hamana, Chikara Kubota, Toshiyuki Kojima 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 3호 7 273-280 (8 pages)
This study was designed to evaluate the reproductive performance of Japanese black cows following the 3rd injection of gonadotropin releasing hormone (GnRH) analogue administered concurrently with Ovsynch-based treatment on day 6 (day 1 = the day of ovulation). In Experiment 1, 12 cows were allocated into three groups: a control group that was subjected to Ovsynch treatment and then injected with a placebo on day 6; group 1 (Ovsynch + GnRH), which was subjected to Ovsynch treatment and was... -
Gonadotropin-releasing hormone immunization and castration in male pigs: effects on growth, hormonal levels, antibody titer response, testicular function, back fat, and consumers` sensory perceptions
Panuwat Yamsakul , Prapas Patchanee , Terdsak Yano , Thanawish Boonma , Chalermchart Somkert , Anucha Sathanawongs 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 7 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2017, 제 57권 제 1호 4 23-29 (7 pages)
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흰쥐 뇌하수체전엽 배양세포에서 GnRH 및 난소호르몬에 의한 LHβ subunit 유전자 발현 조절에 관한 연구
김창미(Chang-mee Kim), 박일선(Il Sun Park), 유경자(Kyung-za Ryu) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 1호 3 19-28 (10 pages)
흰쥐의 뇌하수체 전엽배양세포에 gonadotropin-releasing hormone (GnRH)을 처리하였을 때 시간이 경과함에 따라 GnRH농도에 비례하여 luteinizing hormone(LH)의 분비가 증가하였으며, 2시간까지 급격하게 증가하였다. 또한 GnRH를 처리하였을때 α subunit mRNA의 농도는 증가하지 않았으나 LHβ subunit mRNA의 농도는 GnRH 농도에 비례하여 증가하였으며, GnRH 처리후 6시간 이후부터 유의하게 증가하였다. 특히 최종농도가 2 × 10-10M이 되도록 GnRH를 처리하였을 때 LHβ subunit mRNA 농도가 2.7배 정도 최대로 증가하였다. 또한... -
Influence of category−heifers, primiparous and multiparous lactating cows−in a large-scale resynchronization fixed-time artificial insemination program
Márcio de Oliveira Marques, Fábio Morotti, Camila Bizarro da Silva, Mario Ribeiro Júnior, Rubens C&am 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 3호 15 367-371 (5 pages)
This study was conducted to evaluate the influence of category (heifers, primiparous or multiparous cows) on pregnancy rates in a large scale resynchronization ovulation program. Nelore heifers (n = 903), primiparous lactating cows (n = 338) and multiparous lactating cows (n = 1,223) were synchronized using a conventional protocol of estradiol/P4-based fixed-time artificial insemination (FTAI). Thirty days after ultrasonography, females who failed the first FTAI were resynchronized with the same... -
Use of hydrophilic extra-viral domain of canine distemper virus H protein for enzyme-linked immunosorbent assay development
Ki-hyun Cho, Jeongmi Kim, Hyun-ah Yoo, Dae-hee Kim, Seung-yong Park, Chang-seon Song, In-soo Choi, Joong-bok Lee, 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 6 503-509 (7 pages)
Simple methods for measuring the levels of serum antibody against canine distemper virus (CDV) would assist in the effective vaccination of dogs. To develop an enzyme-linked immunosorbent assay (ELISA) specific for CDV, we expressed hydrophilic extra-viral domain (HEVD) protein of the A75/17-CDV H gene in a pET 28a plasmid-based Escherichia (E.) coli vector system. Expression was confirmed by dot and Western blotting. We proposed that detection of E. coli-expressed H protein might be... -
SRY-positive 78, XY ovotesticular disorder of sex development in a wolf cloned by nuclear transfer
Jung Taek Kang, Hyung Jin Kim, Hyun Ju Oh, So Gun Hong, Jung Eun Park, Min Jung Kim, Min Kyu Kim, Goo Jang, Dae Yong Kim, Byeong 대한수의학회 Journal of Veterinary Science 3 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 15 211-213 (3 pages)
Recently, we reported the three wolves cloning with normal karyotype from somatic cells of endangered male gray wolves (Canis lupus), but one wolf had female external genitalia. In this study, we conducted further clinical, histological, and genetic analyses. This cloned wolf had a normal uterus but developed ovotestis. Through molecular analysis of the SRY gene, a mutation in the coding sequence of SRY gene could be excluded as a cause of intersexuality. This is the first report of a cloned... -
The Effect of Carbon Monoxide on L-type Calcium Channel Currents in Human Intestinal Smooth Muscle Cells
InjaLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.6 10 357-362 (6 pages)
Carbon monoxide (CO) is low molecular weight oxide gas that is endogenously produced under physiological conditions and interacts with another gas, nitric oxide (NO), to act as a gastrointestinal messenger. The aim of this study was to determine the effects of exogenous CO on L-type calcium channel currents of human jejunal circular smooth muscle cells. Cells were voltage clamped with 10 mM barium (Ba2) as the charge carrier, and CO was directly applied into the bath to avoid perfusion... -
Effects of Extracellular Ca++on PKC or cAMP-stimulated Increases in LH Release and LHβSubunit mRNA Levels in Rat Anterior Pituitary Cells
박덕배(Deok-bae Park), 김창미(Chang-mee Kim), 천민석(Min-seok Cheon), 유경자(Kyung-za Ryu) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1996, 제 32권 제 3호 6 347-356 (10 pages)
We examined the effects of EGTA and verapamil on phorbol ester-and forskolin-stimulated LH releases and LHβ subunit mRNA levels in order to verify the role of extracellular Ca++ on PKC- or cAMP-induced increases in LH release and LHβ subunit mRNA levels in cultured anterior pituitary cells of rat. Forskolin-stimulated LHβ subunit mRNA levels as well as LH release were all suppressed by prevention of Ca++ mobilization from extracellular environment, after the treatment of EGTA as a Ca++... -
수컷 흰쥐 뇌하수체의 생식소자극호르몬 발현에 미치는 Ethane 1,2-Dimethane Sulfonate(EDS)의 효과
손혁준, 김수웅, 백재승, 이성호, Son. Hyeok-Joon, Kim. Soo-Woong, Paick. Jae-Seung, Lee. Sung-Ho 한국발생생물학회 발생과 생식 6 Pages
한국발생생물학회 발생과 생식 2007, Vol.11 No.1 49-54 (6 pages)
Ethane 1,2-dimethane sulfonate(EDS)은 Leydig cells(LC)만을 선별적 사멸을 유도하는 약물로서 가역적인 테스토스테론(testosterone, T) 결핍 흰쥐 모델을 만드는데 널리 사용된다. 본 연구에서는 수컷 흰쥐 뇌하수체의 생식소자극호르몬인 LH와 FSH의 발현에 미치는 EDS 투여 효과를 조사하였다. 성숙한 수컷 흰쥐(SD strain, $300{sim}350;g$ B.W.)에 EDS(75 mg/kg, i.p.)를 1회 복강주사하고 주사 후 0, 1, 2, 3, 4, 5, 6 그리고 7주가 경과한 날 희생시켰다. 뇌하수체로부터 total RNA를 추출한 후 뇌하수체 glycoprotein hormone... -
19-Norandrostenedione이 흰쥐 정소내 정자형성에 미치는 영향
윤용달, 전은현, 양현원, 김종민, Yoon. Yong-Dal, Chun. Eun-Hyun, Yang. Hyun-Won, Kim. Jong-Min 대한생식의학회 大韓不妊學會雜誌 8 Pages
대한생식의학회 大韓不妊學會雜誌 1990, Vol.17 No.1 21-28 (8 pages)
19-nortestosterone(NORA)와 19-norandrostenedione(NT)는 정소내 aromatization과정중 중간 대사물로 검출된다. 본 연구는 이들을 장기간 투여하여 정소 및 부속기관의 무게, 혈청내 testosterone(T)의 농도, 정자형성에 미치는 영향을 조사하였다. NORA, NT 및 TE를 $300/50{mu}l$농도로 주당 3회씩 12주간 정소에 직접 주사(intratesticular injection, i.t.)하였다. 또한 GnRH antagonist(RS68439)를 처리하여 혈청내 생식소자극호르몬 (GTH)을 감소시킨후 위 호르몬들을 동일방법으로 처리하여 이들의 보상작용을 조사하였다. NORA는...
