Cholesterol Synthesis in Goldfish Gonads Affected by Phytosterol
Author Information
Author(s): Rainie L. Sharpe, Melissa Drolet, Deborah L. MacLatchy
Primary Institution: University of New Brunswick
Hypothesis
Does exposure to beta-sitosterol disrupt de novo cholesterol synthesis in the gonads of goldfish?
Conclusion
The study found that neither beta-sitosterol nor 17beta-estradiol treatment disrupts gonadal cholesterol biosynthesis in goldfish.
Supporting Evidence
- Plasma testosterone was significantly reduced in male beta-sit-treated fish compared to control and E2-treated fish.
- Plasma cholesterol concentration was significantly increased in the male beta-sit treatment group compared to controls.
- De novo cholesterol synthesis was not disrupted by beta-sit or E2 treatment in goldfish.
Takeaway
Goldfish can make cholesterol in their bodies, and giving them a plant compound called beta-sitosterol doesn't stop this process.
Methodology
Goldfish were exposed to beta-sitosterol and 17beta-estradiol via Silastic implants for 21 days, and cholesterol synthesis was measured using 14C-acetate incorporation.
Limitations
The study did not measure the effects of beta-sitosterol on cholesterol synthesis at different reproductive stages.
Participant Demographics
Male and female goldfish (Carassius auratus) were used in the study.
Statistical Information
P-Value
p < 0.001; p = 0.005; p = 0.027
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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