Vitamin D Deficiency and Ovarian Reserve Among Infertile Patients
Vitamin D Deficiency and Ovarian Reserve Among Infertile Patients. A Cross-sectional Analysis
The role of vitamin D deficiency in female reproduction remains controversial. Early retrospective studies were inconsistent regarding the effect of serum 25-OH vitamin D levels on pregnancy rates in women undergoing in vitro fertilization (IVF), whereas two retrospective studies postulated that vitamin D deficiency may negatively affect pregnancy rates with an effect mediated through the endometrium.
Taking into account that knock-out experiments have shown that vitamin D receptor null mice not only experience uterine hypoplasia but also impaired folliculogenesis, it might be hypothesized that vitamin D deficiency may have a detrimental effect on female ovarian reserve. This may be further supported by previous reports demonstrating that serum 25-OH Vitamin D levels correlates with antimullerian hormone (AMH) levels in women of advanced reproductive age.
The aim of this study is to examine through a large set of prospectively recruited infertile women whether serum 25-OH-Vitamin D levels is related with the 2 most widely accepted biomarkers of ovarian reserve: serum AMH levels and antral follicle count (AFC).
研究概览
地位
条件
研究类型
注册 (实际的)
联系人和位置
学习地点
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Brussels、比利时、1090
- Centre for Reproductive Medicine UZ Brussel
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
infertile women less than 42 years old, undergoing their first treatment cycle in our institution
Exclusion Criteria:
vitamin D supplements, taking medication for systematic disease or having potential iatrogenic (e.g. ovarian surgery, gonadotoxic therapy) or known genetic cause of ovarian loss
学习计划
研究是如何设计的？
设计细节
- 时间观点：预期
队列和干预
团体/队列 |
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Vitamin D deficient patients
Serum 25-OH Vitamin D levels <20ng/L
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Vitamin D sufficient patients
Serum 25-OH Vitamin D levels ≥20ng/L
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Antimullerian hormone values in relation to vitamin D status
大体时间：Between 0-28 days prior to having their 1st ultrasound scan for the determination of antral follicle count (AFC)
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On the day of the preliminary testing (irrespective of the day of the menstrual cycle) patients will have their serum 25-OH-vitamin D and antimullerian hormone levels determined.
25-OH-vitamin D and antimullerian hormone levels will be measured in samples retrieved on the same day
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Between 0-28 days prior to having their 1st ultrasound scan for the determination of antral follicle count (AFC)
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Antral follicle count in relation to vitamin D status
大体时间：2nd-3rd day of the menstrual cycle following the determination of vitamin D levels
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On the following cycle of the measurement of serum 25-OH-Vitamin D and AMH levels patient will have a transvaginal ultrasound to determine the antral follicle count (AFC)
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2nd-3rd day of the menstrual cycle following the determination of vitamin D levels
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合作者和调查者
调查人员
- 首席研究员：Nikolaos P. Polyzos, MD PhD、Universitair Ziekenhuis Brussel
- 首席研究员：Arne Van de Vijver, MD、UZBrussel
出版物和有用的链接
一般刊物
- Ozkan S, Jindal S, Greenseid K, Shu J, Zeitlian G, Hickmon C, Pal L. Replete vitamin D stores predict reproductive success following in vitro fertilization. Fertil Steril. 2010 Sep;94(4):1314-1319. doi: 10.1016/j.fertnstert.2009.05.019. Epub 2009 Jul 8.
- Anifandis GM, Dafopoulos K, Messini CI, Chalvatzas N, Liakos N, Pournaras S, Messinis IE. Prognostic value of follicular fluid 25-OH vitamin D and glucose levels in the IVF outcome. Reprod Biol Endocrinol. 2010 Jul 28;8:91. doi: 10.1186/1477-7827-8-91.
- Aleyasin A, Hosseini MA, Mahdavi A, Safdarian L, Fallahi P, Mohajeri MR, Abbasi M, Esfahani F. Predictive value of the level of vitamin D in follicular fluid on the outcome of assisted reproductive technology. Eur J Obstet Gynecol Reprod Biol. 2011 Nov;159(1):132-7. doi: 10.1016/j.ejogrb.2011.07.006. Epub 2011 Aug 10.
- Rudick B, Ingles S, Chung K, Stanczyk F, Paulson R, Bendikson K. Characterizing the influence of vitamin D levels on IVF outcomes. Hum Reprod. 2012 Nov;27(11):3321-7. doi: 10.1093/humrep/des280. Epub 2012 Aug 21.
- Rudick BJ, Ingles SA, Chung K, Stanczyk FZ, Paulson RJ, Bendikson KA. Influence of vitamin D levels on in vitro fertilization outcomes in donor-recipient cycles. Fertil Steril. 2014 Feb;101(2):447-52. doi: 10.1016/j.fertnstert.2013.10.008. Epub 2013 Nov 5.
- Dennis NA, Houghton LA, Jones GT, van Rij AM, Morgan K, McLennan IS. The level of serum anti-Mullerian hormone correlates with vitamin D status in men and women but not in boys. J Clin Endocrinol Metab. 2012 Jul;97(7):2450-5. doi: 10.1210/jc.2012-1213. Epub 2012 Apr 16.
- Merhi ZO, Seifer DB, Weedon J, Adeyemi O, Holman S, Anastos K, Golub ET, Young M, Karim R, Greenblatt R, Minkoff H. Circulating vitamin D correlates with serum antimullerian hormone levels in late-reproductive-aged women: Women's Interagency HIV Study. Fertil Steril. 2012 Jul;98(1):228-34. doi: 10.1016/j.fertnstert.2012.03.029. Epub 2012 Apr 10.
- Yoshizawa T, Handa Y, Uematsu Y, Takeda S, Sekine K, Yoshihara Y, Kawakami T, Arioka K, Sato H, Uchiyama Y, Masushige S, Fukamizu A, Matsumoto T, Kato S. Mice lacking the vitamin D receptor exhibit impaired bone formation, uterine hypoplasia and growth retardation after weaning. Nat Genet. 1997 Aug;16(4):391-6. doi: 10.1038/ng0897-391.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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