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Effects of zearalenone-diet on expression of ghrelin and PCNA genes in ovaries of post-weaning piglets.
- Source :
-
Animal reproduction science [Anim Reprod Sci] 2016 May; Vol. 168, pp. 126-137. Date of Electronic Publication: 2016 Mar 17. - Publication Year :
- 2016
-
Abstract
- Numerous reports have provided evidence that zearalenone (ZEN) can increase the weight of genital organs. These findings have been confirmed by many studies in which the ghrelin gene was expressed in the ovary and was implicated in the control of cells in reproductive tissues. The proliferating cell nuclear antigen (PCNA) is an important marker of cell proliferation. The present study investigates the effects of a ZEN-treated diet on the development of ovaries in post-weaning piglets by the detection of ghrelin and PCNA protein and relative abundance of mRNA using optical microscopy, immunohistochemistry and quantitative real-time (qRT-PCR). A total of 20 piglets (Duroc × Landrace × Yorkshire) weaned at 28 d, with an average body weight of 8.74 ± 0.26 kg (P=0.919) were used in this study. Piglets in the control group (n=10) were fed a normal basal diet, and those in the treatment group (n=10) were fed a diet containing ZEN (1.04 mg/kg), for 35 d. The proportion of growing follicles and diameter of the largest growing follicle in ovaries were greater in piglets fed the diet with ZEN. The total integrated optical densities of protein and mRNA of ghrelin and PCNA were greater with the feeding of the ZEN-treatment diet. The results suggested that 1.04 mg/kg ZEN could promote the autocrine action or expression of the ghrelin gene in piglet ovary, and further accelerate the development of ovaries (follicles).<br /> (Copyright © 2016 Elsevier B.V. All rights reserved.)
- Subjects :
- Animals
Diet veterinary
Female
Gene Expression Regulation, Developmental drug effects
Ovarian Follicle drug effects
Ovarian Follicle physiology
Ovary metabolism
Swine
Estrogens, Non-Steroidal pharmacology
Ghrelin biosynthesis
Ovary drug effects
Proliferating Cell Nuclear Antigen biosynthesis
Zearalenone pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2232
- Volume :
- 168
- Database :
- MEDLINE
- Journal :
- Animal reproduction science
- Publication Type :
- Academic Journal
- Accession number :
- 27020865
- Full Text :
- https://doi.org/10.1016/j.anireprosci.2016.03.006