자료유형
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전체 선택해제
총 118건 검색
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The expression and localization of inhibin isotypes in mouse testis during postnatal development
Yujin Kim, Joong-Sun Kim, Myoung-Sub Song, Heung-Sik Seo, Jong Choon Kim, Chun-Sik Bae, Seungjoon Kim, Taekyun Shin, Sung-Ho Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 2 345-350 (6 pages)
Inhibin, which is important for normal gonadal function, acts on the pituitary gonadotropins to suppress follicle- stimulating hormone (FSH) secretion. The level and cellular localization of the inhibin isotypes, α, βA and βB, in the testis of mice were examined during postnatal development in order to determine if inhibin expression is related to testicular maturation. Mouse testes were sampled on postnatal days (PNDs) 1, 3, 6, 18, 48 and 120, and analyzed by Western blotting and... -
Immunohistochemical study of galectin-3 in mature and immature bull testis and epididymis
Hwanglyong Kim, Meejung Ahn, Changjong Moon, Seungjoon Kim, Youngheun Jee, Hong-Gu Joo, Taekyun Shin* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 1 339-344 (6 pages)
in mammalian sperm maturation. We examined galectin-3 expression in the testis and epididymis of sexually mature and immature bulls. Western blot analysis showed varying levels of galectin-3 in the bull testis and epididymis, and galectin-3 immunoreactivity was higher in the mature testis and epididymis than in immature organs. Galectin-3 was primarily localized in interstitial cells of the immature bull testis and in the peritubular myoid and interstitial cells of the mature testis. In the... -
Sertoli cell proliferation during the post hatching period in domestic fowl
H. Hakan Bozkurt, Abit Aktas, M. Basak Ulkay, Umay B. Firat 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 3 219-222 (4 pages)
There has been no study aimed at directly determining of the periods of Sertoli cell proliferation in birds even domestic fowl. The aims of this study were to observe the cessation of post-hatching mitotic proliferation of Sertoli cells in domestic fowl, and to determine the volume density of Sertoli and germ cells during this period. A total of 50 Leghorn chicks were used in this study. The testes sections of the animals were immunostained with BrdU to observe the proliferation of cells from... -
Effects of endocrine disrupting chemicals on expression of phospholipid hydroperoxide glutathione peroxidase mRNA in rat testes
In-Jeoung Baek, Jung-Min Yon, Se-Ra Lee, Yan Jin, Mi-Ra Kim, Byeongwoo Ahn, Jin Tae Hong, Young-Kug Choo, Beom Jun Lee, Young Wo 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 2 213-218 (6 pages)
Phospholipid hydroperoxide glutathione peroxidase (PHGPx), an antioxidative selenoprotein, is modulated by estrogen in the testis and oviduct. To examine whether potential endocrine disrupting chemicals (EDCs) affect the microenvironment of the testes, the expression patterns of PHGPx mRNA and histological changes were analyzed in 5-week-old Sprague-Dawley male rats exposed to several EDCs such as an androgenic compound [testosterone (50, 200, and 1,000 ?g/kg)], anti-androgenic compounds... -
Modification of maturation condition improves oocyte maturation and in vitro development of somatic cell nuclear transfer pig embryos
Kilyoung Song, Eunsong Lee 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 1호 12 81-87 (7 pages)
This study examined effects on the developmental competence of pig oocytes after somatic cell nuclear transfer (SCNT) or parthenogenetic activation (PA) of : 1) co-culturing of oocytes with follicular shell pieces (FSP) during in vitro maturation (IVM); 2) different durations of maturation; and 3) defined maturation medium supplemented with polyvinyl alcohol (PVA; control), pig follicular fluid (pFF), cysteamine (CYS), or β-mercaptoethanol (β-ME). The proportion of metaphase II oocytes was... -
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... -
Transactivation of peroxisome proliferator-activated receptor alpha by green tea extracts
Kookkyung Lee 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 4호 7 325-330 (6 pages)
be mediated through the transactivation of PPARalpha and that epigallocatechin gallate may be an effective component of green tea leaves. This would account for the increase in the number of peroxisomes and the activity of peroxisomal enzymes previously reported. However, black tea, a fully fermented product, had a stronger effect than oolong tea extract. These results also suggest, that in addition to epigallocatechin gallate, green tea leaves may possess some active chemicals newly produced as... -
Thickness of cumulus cell layer is a significant factor in meiotic competence of buffalo oocytes
Hassan M. Warriach, Kazim R. Chohan 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 10 247-251 (5 pages)
This study evaluated the meiotic competence of buffalo oocytes with different layers of cumulus cells. A total of 588 oocytes were collected from 775 ovaries averaging 0.78 oocytes per ovary. Oocytes with homogenous cytoplasm (n = 441) were selected for in vitro maturation (IVM) and divided into four groups based on their cumulus morphology: a) oocytes with ≥= 3 layers of cumulus cells, b) 1-2 layers of cumulus cells and oocytes with partial remnants or no cumulus cells to be cocultured c) with... -
Exposure to genistein does not adversely affect the reproductive system in adult male mice adapted to a soy-based commercial diet
Beom Jun Lee, Jong-Koo Kang, Eun-Yong Jung, Young Won Yun, In-Jeoung Baek, Jung-Min Yon, Yoon-Bok Lee, Heon-Soo Sohn, Jae-Yong L 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 7 227-234 (8 pages)
for putative beneficial health effects but its estrogenic activity may affect adversely the development of male reproductive system. Five-week-old ICR mice were purchased and fed with a soybean-based Purina Chow diet until 6 months of age. The animals were exposed by gavage to genistein (2.5 mg/kg/day) or 17β-estradiol (7.5μg/kg/day) for five weeks. Corn oil was used for the negative control. The animals were fed the casein-based AIN-76A diet throughout the experimental periods. There were no... -
B6C3F1 mice exposed to ozone with 4-(N-methyl-Nnitrosamino)-1-(3-pyridyl)-1-butanone and/or dibutyl phthalate showed toxicities through alterations of NF-κB, AP-1, Nrf2, and osteopontin
Min Young Kim, Kyung Suk Song, Gun Ho Park, Seung Hee Chang, Hyun Woo Kim, Jin Hong Park, Hwa Jin, Kook Jong Eu, Hyun Sun Cho, G 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 2호 7 131-137 (7 pages)
all treated mice, whereas IkB activity was inhibited in NNK-, DBP-, and combination-treated ones. All treated mice except ozone-treated one showed high AP-1 binding activities. Expression levels of c-fos, c-jun, junB, jun D, Nrf2, and OPN proteins increased in all treated mice. Additive interactions were frequently noted from two-toxicant combination mice compared to ozone-treated one. These results indicate treatment of mixture of toxicants increased toxicity through NF-kB, AP-1, Nrf2, and OPN....
