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Dragomir RE, Toader OD, Gheoca Mutu DE, Stănculescu RV. The Key Role of Vitamin D in Female Reproductive Health: A Narrative Review. Cureus 2024; 16:e65560. [PMID: 39071069 PMCID: PMC11283644 DOI: 10.7759/cureus.65560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2024] [Indexed: 07/30/2024] Open
Abstract
Vitamin D, besides its crucial role in bone health and immune function, has received increased attention in recent years due to its possible impact on many processes related to female reproductive health. Recent research has tried to explain the role played by vitamin D in maintaining adequate hormonal status, fertility, and pregnancy outcomes. Our aim for this narrative literature review was to highlight and explain the mechanisms through which vitamin D status impacts female reproductive health. We believe this represents a very important subject of research, especially due to the increased incidence of infertility nowadays. Further studies are necessary on the association between vitamin D status and female reproductive health in order to fully understand its effects and to reach a consensus regarding vitamin D supplementation as a method to improve fertility status.
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Affiliation(s)
- Ramona E Dragomir
- Doctoral School, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Oana D Toader
- Obstetrics and Gynecology, Alessandrescu-Rusescu National Institute for Mother and Child Health, Polizu Hospital, Bucharest, ROU
- Obstetrics and Gynecology, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Daniela E Gheoca Mutu
- Anatomy and Plastic Surgery, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
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Ursache A, Lozneanu L, Bujor IE, Mandici CE, Boiculese LV, Bausic AIG, Grigore M, Socolov D, Matasariu DR. Vitamin D-The Iceberg in Endometriosis-Review and Meta-Analysis. J Pers Med 2024; 14:119. [PMID: 38276241 PMCID: PMC10821152 DOI: 10.3390/jpm14010119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
(1) Background: Although vitamin D has many known biological effects, very little research has been conducted on how vitamin D may be related or play a role in endometriosis. The aim of our study was to perform an evaluation regarding vitamin D levels and possible implications in endometriosis through a statistical analysis of the data collected from the included studies. (2) Methods: For this review, we searched the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and PubMed/Internet portal of the National Library of Medicine databases using several keywords related to our topic. (3) Results: Only nine articles were identified as complete or possessing the capacity to compute all available data. We totalized a number of 976 patients with endometriosis and 674 controls. From the nine studies included in our analysis, three of them claim there is no difference between women with and without endometriosis concerning 25(OH) vitamin D levels; however, the other six studies found significant differences regarding this aspect. (4) Conclusions: Our results underscored the complexity of analyzing the role of the vitamin D complex in a challenging condition like endometriosis and suggest that focusing on the tissue level might be essential to obtain accurate answers to our inquiries.
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Affiliation(s)
- Alexandra Ursache
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
- Department of Obstetrics and Gynecology, Cuza Vodă Hospital, 700038 Iasi, Romania
| | - Ludmila Lozneanu
- Department of Morpho-Functional Sciences I—Histology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania;
| | - Iuliana Elena Bujor
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
| | - Cristina Elena Mandici
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
| | - Lucian Vasile Boiculese
- Biostatistics, Department of Preventive Medicine and Interdisciplinarity, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania;
| | | | - Mihaela Grigore
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
- Department of Obstetrics and Gynecology, Cuza Vodă Hospital, 700038 Iasi, Romania
| | - Demetra Socolov
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
- Department of Obstetrics and Gynecology, Cuza Vodă Hospital, 700038 Iasi, Romania
| | - Daniela Roxana Matasariu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy ‘Gr. T. Popa’, 700115 Iasi, Romania; (A.U.); (M.G.); (D.S.); (D.R.M.)
- Department of Obstetrics and Gynecology, Cuza Vodă Hospital, 700038 Iasi, Romania
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Amzajerdi A, Keshavarz M, Ghorbali E, Pezaro S, Sarvi F. The effect of vitamin D on the severity of dysmenorrhea and menstrual blood loss: a randomized clinical trial. BMC Womens Health 2023; 23:138. [PMID: 36973702 PMCID: PMC10045437 DOI: 10.1186/s12905-023-02284-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Primary dysmenorrhea is considered as one of the women's main problems during reproductive age. The present study aimed to investigate the effect of vitamin D on the severity of dysmenorrhea and menstrual blood loss. METHODS This double-blind, randomized, placebo-controlled trial, was performed on 84 single female college students between 18 and 25 years old who living in dormitories. Students with primary dysmenorrhea and vitamin D deficiency were divided into experimental (n = 42) and control (n = 42) groups. Five days before the putative beginning of their next menstrual cycle, the experimental group received 300,000 IU vitamin D (50,000 IU, two tablets every 8 h), and the control group received a placebo (oral paraffin). The effects of the supplement on the severity of dysmenorrhea and menstrual blood loss were evaluated one cycle before and during two successive cycles. Using the visual analog scale (VAS), verbal multidimensional scoring system (VMS), and pictorial blood assessment chart (PBLAC) questionnaires. Fisher's exact, Chi-square, independent sample t-test and repeated measurements were used. RESULTS In total, 78 of the 84 students completed the study (39 students per group). The intervention resulted in a significant reduction in the mean scores of both the VAS and VMS in the experimental group, in the first and second menstrual cycles (p < 0.001, p < 0.001, respectively), but not in the means score of PBLAC. Mefenamic acid consumption at the first and second menstruation period, in the experimental group was lower than the control group (p = 0.009, p < 0.001, respectively). CONCLUSIONS The results indicate that vitamin D supplementation could decrease the severity of primary dysmenorrhea and the need to consume pain-relief medications. Contrariwise vitamin D supplementation had no significant effect on menstrual blood loss. TRIAL REGISTRATION This trial was registered in the Iranian Registry of Clinical Trials with code IRCT201305212324N on 18/1/2014. URL of registry: https://en.irct.ir/trial/1964 .
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Affiliation(s)
- Azam Amzajerdi
- School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Keshavarz
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Reproductive Sciences and Technology Research Center, Department of Midwifery and Reproductive Health, Iran University of Medical Sciences, Rashid Yasemi St., Valiasr St, Tehran, 1996713883, Iran.
| | - Elham Ghorbali
- School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Sally Pezaro
- Centre for Healthcare Research, Coventry University, Coventry, UK
- The University of Notre Dame, Fremantle, Australia
| | - Fatemeh Sarvi
- Department of Public Health, School of Health, Larestan University of Medical Sciences, Shiraz, Fars, Iran
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Jarosz AC, Noori D, Zeitoun T, Garcia-Bailo B, El-Sohemy A. Variation in the vitamin D receptor gene, plasma 25-hydroxyvitamin D, and risk of premenstrual symptoms. GENES & NUTRITION 2021; 16:15. [PMID: 34551710 PMCID: PMC8459465 DOI: 10.1186/s12263-021-00696-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/06/2021] [Indexed: 11/10/2022]
Abstract
Background Vitamin D status has been associated with the presence and severity of several premenstrual symptoms (PMSx) in some, but not all studies. Inconsistencies among findings may be explained by unaccounted genetic variation in the vitamin D receptor (VDR). Objective To determine whether associations between vitamin D status and individual PMSx are influenced by VDR genotype. Methods Seven hundred sixteen women aged 20-29 years old from the Toronto Nutrigenomics and Health study provided plasma samples and completed a questionnaire on the presence and severity of 15 common PMSx. Plasma 25-hydroxyvitamin D (25(OH)D) concentration was measured and participants were categorized into sufficient (≥ 50 nmol/L) and insufficient (< 50 nmol/L) vitamin D status groups. DNA was obtained from blood samples to genotype for a common VDR single nucleotide variant, rs796858. Using logistic regression, odds of experiencing PMSx were compared between vitamin D-sufficient and insufficient women, stratified by genotype. Results Among CC homozygotes, insufficient vitamin D status was associated with higher odds of experiencing premenstrual fatigue (OR, 2.53; 95% CI, 1.40, 4.56) and nausea (OR, 2.44; 95% CI, 1.00, 5.95). Among TT homozygotes, insufficient vitamin D status was associated with lower odds of experiencing fatigue (OR, 0.44; 95% CI, 0.20, 0.97) and increased appetite (OR, 0.48; 95% CI, 0.22, 1.04). Insufficient vitamin D status was associated with higher odds of increased appetite in women with the CT genotype (OR, 1.78; 95% CI, 1.03, 3.07). VDR genotype modified the association between vitamin D status and the following PMSx: increased appetite (interaction p = 0.027), fatigue (interaction p = 0.016), and nausea (interaction p = 0.039). Conclusion We found evidence that VDR genotype may modify the association between 25(OH)D and some PMSx. Insufficient 25(OH)D was associated with a higher risk of premenstrual fatigue in those with the CC genotype, but lower risk in those with the TT genotype. Supplementary Information The online version contains supplementary material available at 10.1186/s12263-021-00696-2.
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Delbandi AA, Torab M, Abdollahi E, Khodaverdi S, Rokhgireh S, Moradi Z, Heidari S, Mohammadi T. Vitamin D deficiency as a risk factor for endometriosis in Iranian women. J Reprod Immunol 2020; 143:103266. [PMID: 33385732 DOI: 10.1016/j.jri.2020.103266] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 12/03/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Vitamin D (Vit D), as an immunomodulator, has been hypothesized to play a critical role in the pathogenesis of endometriosis. Thus, in this study, we evaluated whether there is an association between 25-hydroxyvitamin D [25(OH)D] and susceptibility to endometriosis in Iranian women. METHODS Women at reproductive age, including 56 healthy women and 54 patients with endometriosis, were enrolled in the study. Serum levels of 25(OH)D, calcium, parathyroid hormone (PTH), and peritoneal fluid (PF) levels of 25(OH)D were assessed. RESULTS The serum and PF levels of 25(OH)D in the patients with endometriosis were significantly lower than the control group (P = 0.001 and P = 0.03, respectively). Subjects with serum levels of 25(OH)D lower than 20 ng/mL had a 2.7 times higher risk of endometriosis than people with 25(OH)D serum levels higher than 20 ng/mL (non-deficient) (OR = 2.7, 95 % confidence interval: 1.24-5.80, P = 0.01). The serum levels of calcium and PTH were significantly lower and higher in patients with endometriosis compared with controls, respectively (P < 0.001, P = 0.02, respectively). Also, the serum levels of 25(OH)D were lower in stages I-II endometriosis than stage III-IV; however, no significant difference was observed. CONCLUSION Our findings showed that people with Vit D deficiency are at higher risk of endometriosis.
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Affiliation(s)
- Ali-Akbar Delbandi
- Immunology Research Center, Immunology and Infectious Disease Institute, Iran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mansour Torab
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Elaheh Abdollahi
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sepideh Khodaverdi
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Samaneh Rokhgireh
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Zahra Moradi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sahel Heidari
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Tahereh Mohammadi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Effects of dairy products, calcium and vitamin D on ovarian cancer risk: a meta-analysis of twenty-nine epidemiological studies. Br J Nutr 2020; 124:1001-1012. [DOI: 10.1017/s0007114520001075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractFindings for the roles of dairy products, Ca and vitamin D on ovarian cancer risk remain controversial. We aimed to assess these associations by using an updated meta-analysis. Five electronic databases (e.g. PubMed and Embase) were searched from inception to 24 December 2019. Pooled relative risks (RR) with 95 % CI were calculated. A total of twenty-nine case–control or cohort studies were included. For comparisons of the highest v. lowest intakes, higher whole milk intake was associated with increased ovarian cancer risk (RR 1·35; 95 % CI 1·15, 1·59), whereas decreased risks were observed for higher intakes of low-fat milk (RR 0·84; 95 % CI 0·73, 0·96), dietary Ca (RR 0·71; 95 % CI 0·60, 0·84) and dietary vitamin D (RR 0·80; 95 % CI 0·67, 0·95). Additionally, for every 100 g/d increment, increased ovarian cancer risks were found for total dairy products (RR 1·03; 95 % CI 1·01, 1·04) and for whole milk (RR 1·07; 95 % CI 1·03, 1·11); however, decreased risks were found for 100 g/d increased intakes of low-fat milk (RR 0·95; 95 % CI 0·91, 0·99), cheese (RR 0·87; 95 % CI 0·76, 0·98), dietary Ca (RR 0·96; 95 % CI 0·95, 0·98), total Ca (RR 0·98; 95 % CI 0·97, 0·99), dietary vitamin D (RR 0·92; 95 % CI 0·87, 0·97) and increased levels of circulating vitamin D (RR 0·84; 95 % CI 0·72, 0·97). These results show that whole milk intake might contribute to a higher ovarian cancer risk, whereas low-fat milk, dietary Ca and dietary vitamin D might reduce the risk.
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