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EnglishAloes are now considered a very interesting source of bioactive compounds among which phytosterols should play a major role. The present study is an attempt to investigate the hypocholesterolemic activity of Aloe vera associated with its impact on the reproductive status of juvenile goldfish. Therefore, the short- and long-term effects of feeding supplementary diet containing aloe components (20 mg aloe/g diet; 2 %) on plasma lipids, plasma vitellogenin, and hepatic estrogen receptor a/b1 mRNA levels in goldfish were examined. Results of GC–MS for phytosterols show high abundance of b-sitosterol in freeze-dried powder of Aloe vera whole leaves. Moreover, a 2 % aloe powder dietary supplement was not found estrogenic in juvenile goldfish after either 7- or 30-day treatment, but was consistent in plasma hypocholesterolemic effects following longterm exposure. The present data further support that plasma cholesterol modulation induced by phytosterols may not be related to estrogen-like activity.
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| Titolo: | Dietary Aloe vera components’ effects on cholesterol lowering and estrogenic responses in juvenile goldfish, Carassius auratus |
| Autori: | |
| Data di pubblicazione: | 2013 |
| Rivista: | |
| Abstract: | Aloes are now considered a very interesting source of bioactive compounds among which phytosterols should play a major role. The present study is an attempt to investigate the hypocholesterolemic activity of Aloe vera associated with its impact on the reproductive status of juvenile goldfish. Therefore, the short- and long-term effects of feeding supplementary diet containing aloe components (20 mg aloe/g diet; 2 %) on plasma lipids, plasma vitellogenin, and hepatic estrogen receptor a/b1 mRNA levels in goldfish were examined. Results of GC–MS for phytosterols show high abundance of b-sitosterol in freeze-dried powder of Aloe vera whole leaves. Moreover, a 2 % aloe powder dietary supplement was not found estrogenic in juvenile goldfish after either 7- or 30-day treatment, but was consistent in plasma hypocholesterolemic effects following longterm exposure. The present data further support that plasma cholesterol modulation induced by phytosterols may not be related to estrogen-like activity. |
| Handle: | http://hdl.handle.net/11581/250485 |
| Appare nelle tipologie: | Articolo |
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