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Estradiol, vitamin D, Omega-3 – RCT Feb 2019

Assessing the effect of omega-3 fatty acid combined with vitamin D3 versus vitamin D3 alone on estradiol levels: a randomized, placebo-controlled trial in females with vitamin D deficiency

Clinical Pharmacology: Advances and Applications » Vol 11 DOI https://doi.org/10.2147/CPAA.S182927
Amani H Al-Shaer,1 Mahmoud S Abu-Samak,1 Luai Z Hasoun,1 Beisan A Mohammad,1,2 Iman A Basheti1
1 Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan;
2 Department of Physiological Sciences, Fakeeh College for Medical Sciences, Jeddah, Kingdom of Saudi Arabia

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Purpose: Outcomes investigating the effect of vitamin D3 (VD3) and omega-3 fatty acids (Omega-3FA) on serum estradiol (E2) are scarce and conflicting. No previous study has investigated the effect of VD3 combination with Omega-3FA on E2 levels. This study was designed to investigate the effect of VD3, Omega-3FA and VD3 plus Omega-3FA on serum E2 levels in premenopausal females diagnosed with vitamin D deficiency (VDD).

Subjects and methods: This randomized, placebo-controlled clinical trial was designed to evaluate the effects of 50,000 IU VD3 taken weekly, 300 mg Omega-3FA taken daily and their combination by the study participants for 8 weeks. The mid-follicular serum levels of E2 and 25-hydroxy vitamin D (25OHD) were assessed at 8 weeks. The study was conducted during winter on a convenience sample of healthy premenopausal Jordanian females with diagnosed VDD. Fasting serum levels for 25OHD and E2 were assessed at baseline and the end of the trial (after 8 weeks). Data were entered into SPSS and analyzed.

Results: Healthy premenopausal Jordanian females (N=86) with diagnosed VDD, mean age 32.8±8.9 years, were recruited into the study. Supplementation of VD3 alone resulted in a significant increase in serum 25OHD (13.4±7.9–28.2±7.1 ng/mL, P<0.001) and a significant decrease in E2 levels (85.7±16.5–60.3±20.6 pg/mL, P=0.001). Omega-3FA intake led to a significant decrease in serum 25OHD levels (21.2±12.8–13.6±9.2 ng/mL, P=0.001) and a significant increase in E2 levels (56.3±19.2–78.4±23.7 pg/mL, P=0.006). Combination therapy (VD3 plus Omega-3FA) resulted in a significant increase in both 25OHD (12.0±4.7–35.1±9.5 ng/mL, P<0.001) and E2 (43.0±23.4–57.3±31.5 pg/mL, P=0.028) levels.

Conclusion: Results of this study provide vital insight into the effects of D3, Omega-3FA and a combination of their supplementation on premenopausal Jordanian females with diagnosed VDD. Eight weeks of therapy led to decreased E2 level by VD3 and increased level by Omega-3FA supplementation. With regard to 25OHD, its level was increased by VD3 and decreased by Omega-3FA supplementation. Combination of VD3 plus Omega-3FA increased the levels of both E2 and 25OHD.
Trial registration: This trial was registered at clinicaltrials.gov as NCT03333564.

Created by admin. Last Modification: Wednesday February 6, 2019 16:38:50 GMT-0000 by admin. (Version 2)

Estradiol, vitamin D, Omega-3 – RCT Feb 2019        

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ID Name Comment Uploaded Size Downloads
11339 E2.jpg admin 05 Feb, 2019 01:08 36.59 Kb 54
11338 25OHD.jpg admin 05 Feb, 2019 01:07 30.44 Kb 61
11337 estradiol.pdf PDF 2019 admin 05 Feb, 2019 01:03 284.72 Kb 26
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