IMMUNOLOCALIZATION OF INSULIN-LIKE GROWTH FACTOR-I AND ITS IMMUNOREACTIVITY DURING OVARY DEVELOPMENTAL STAGES OF PERSIAN STURGEON, ACIPENSER PERSICUS

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BAHRAMI KAMANGAR B.; MAJAZI AMIRI B.; RASAEI MOHAMMAD JAVAD; ABTAHI BEHROUZ; BAHMANI MAHMOUD

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Journal: Cell Journal (Yakhteh) Year:2010 | Volume:11 | Issue:4 (44) Page(s): 432-441

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Title

IMMUNOLOCALIZATION OF INSULIN-LIKE GROWTH FACTOR-I AND ITS IMMUNOREACTIVITY DURING OVARY DEVELOPMENTAL STAGES OF PERSIAN STURGEON, ACIPENSER PERSICUS

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Keywords

ACIPENSER PERSICUSQ1

INSULIN-LIKE GROWTH FACTOR-IQ1

OVARYQ2

IMMUNOHISTOCHEMISTRYQ2

Abstract

Objective: Immunohistochemical localization and immunoreactivity of INSULIN-LIKE GROWTH FACTOR-I (IGF-I) were investigated during the ovarian developmental stages in Persian sturgeon. In addition, the effects of growth hormone and thyroxine were investigated on IGF-I immunoreactivity in vitro. Materials and Methods: Ovarian samples were taken from two brood stocks (caught from the sea and from a river) during their reproductive migration and at three different developmental stages based on their polarization index (PI). The effects of two hormones on IGF-I immunoreactivity were studied at two ovarian developmental stages (PI>0.1 and PI<0.07). In both experiments the immunoperoxidase method was performed in order to detect immunohistochemical localization and immunoreactivity of IGF-I.Results: Immunohistochemical localizations of IGFI were detected in the follicular layers. There was no significant immunoreactivity difference between the two brood stocks, however in the river brood stock IGF-I immunoreactivity was more intense in the ovaries with PI<0.07 than of PI>0.1 (p<0.05). Growth hormone (10 ng/ml) increased IGF-I immunoreactivity in ovarian samples from the river brood stock when their PI was less than 0.07, however thyroxine had not such effect (p<0.05).Conclusion: Our results showed that IGF-I is present in the ovaries of Persian sturgeon and its reactivity is different among their gonadal development stages. This may support a role for IGF-I during reproductive physiology in female brood stocks of the Persian sturgeon. Moreover, growth hormone is a potential hormone to increase IGF-I immunoreactivity in the ovaries of this species.

Cites

تغییرات سرمی فاکتور رشد شبه انسولین-یک، تیروکسین و کورتیزول در دو گروه از مولدین تاس ماهی ایرانی Acipenser persicus در طی مراحل انتهایی رسیدگی جنسی

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APA: Copy

BAHRAMI KAMANGAR, B., MAJAZI AMIRI, B., RASAEI, MOHAMMAD JAVAD, ABTAHI, BEHROUZ, & BAHMANI, MAHMOUD. (2010). IMMUNOLOCALIZATION OF INSULIN-LIKE GROWTH FACTOR-I AND ITS IMMUNOREACTIVITY DURING OVARY DEVELOPMENTAL STAGES OF PERSIAN STURGEON, ACIPENSER PERSICUS. CELL JOURNAL (YAKHTEH), 11(4 (44)), 432-441. SID. https://sid.ir/paper/16228/en

Vancouver: Copy

BAHRAMI KAMANGAR B., MAJAZI AMIRI B., RASAEI MOHAMMAD JAVAD, ABTAHI BEHROUZ, BAHMANI MAHMOUD. IMMUNOLOCALIZATION OF INSULIN-LIKE GROWTH FACTOR-I AND ITS IMMUNOREACTIVITY DURING OVARY DEVELOPMENTAL STAGES OF PERSIAN STURGEON, ACIPENSER PERSICUS. CELL JOURNAL (YAKHTEH)[Internet]. 2010;11(4 (44)):432-441. Available from: https://sid.ir/paper/16228/en

IEEE: Copy

B. BAHRAMI KAMANGAR, B. MAJAZI AMIRI, MOHAMMAD JAVAD RASAEI, BEHROUZ ABTAHI, and MAHMOUD BAHMANI, “IMMUNOLOCALIZATION OF INSULIN-LIKE GROWTH FACTOR-I AND ITS IMMUNOREACTIVITY DURING OVARY DEVELOPMENTAL STAGES OF PERSIAN STURGEON, ACIPENSER PERSICUS,” CELL JOURNAL (YAKHTEH), vol. 11, no. 4 (44), pp. 432–441, 2010, [Online]. Available: https://sid.ir/paper/16228/en

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