This immunohistochemical study describes the localization of progesterone receptors (PR) in the bovine ovary of 23 cows at different stages of the oestrous cycle. In primordial, primary and secondary follicles the score for PR in the follicle cells increased progressively with the maturation of the follicle. In vital tertiary follicles and cystic atretic follicles a moderate score for PR was found, while in obliterative atretic follicles the score was much lower. Scores were high in corpora hemorrhagica, low in corpora lutea and still lower in corpora albicantia. Low PR scores were also found in the tunica albuginea and surface epithelium. Cyclic variations of PR immunoreactivity were manifest in most ovarian tissues. Follicular scores for PR were high in oestrus and decreased during the following stages, whereas scores in corpora lutea cells varied according to a characteristic pattern with high levels during oestrus and metoestrus. The variations in the scores for PR in the different ovarian cell types suggest a cell-specific and cycle-dependent influence of progesterone. A negative correlation was found between the PR scores and the plasma progesterone concentration. (c) 2006 Elsevier B.V. All rights reserved.
机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Cong, B
Li, SJH
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机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Li, SJH
Ling, YL
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Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R ChinaHebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Ling, YL
Yao, YX
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机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Yao, YX
Gu, ZY
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机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Gu, ZY
Wang, JX
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机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
Wang, JX
You, HY
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机构:Hebei Med Univ, Dept Pathophysiol, Shijiazhuang 050017, Hebei Province, Peoples R China
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Northwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R China
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Luo, Yuru
Zhang, Ruiqi
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Northwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R China
Zhang, Ruiqi
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Northwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R ChinaNorthwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R China
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Cai, Yong
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Northwest Univ Nationalities, Expt Ctr, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
Cai, Yong
Huo, Shengdong
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Northwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
Huo, Shengdong
Ren, Rui
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Northwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
Ren, Rui
Zang, Rongxin
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Northwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
Zang, Rongxin
Yang, Jutian
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Northwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
Yang, Jutian
Ma, Zhongren
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Northwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R ChinaNorthwest Univ Nationalities, Life Sci & Engn Coll, Lanzhou, Gansu, Peoples R China
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Univ Sarajevo, Vet Fac, Dept Clin Sci, Sarajevo, Bosnia & HercegUniv Sarajevo, Vet Fac, Dept Clin Sci, Sarajevo, Bosnia & Herceg
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Nurkic, M.
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Vet practice Ferdinand Niessen, Dusseldorf, GermanyUniv Sarajevo, Vet Fac, Dept Clin Sci, Sarajevo, Bosnia & Herceg
Nurkic, M.
Maksimovic, Z.
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Univ Sarajevo, Vet Fac, Dept Pathobiol & Epidemiol, Sarajevo, Bosnia & Herceg
Univ Sarajevo, Vet Fac, Dept Pathobiol & Epidemiol, Zmaja Od Bosne 90, Sarajevo 71000, Bosnia & HercegUniv Sarajevo, Vet Fac, Dept Clin Sci, Sarajevo, Bosnia & Herceg
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JOURNAL OF THE HELLENIC VETERINARY MEDICAL SOCIETY,
2023,
74
(02):
: 5793
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