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Layne TM, Rothstein JH, Song X, Andersen SW, Benn EKT, Sieh W, Klein RJ. Variants in Vitamin D-related Genes and Prostate Cancer Risk in Black Men. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.29.24309698. [PMID: 38978663 PMCID: PMC11230321 DOI: 10.1101/2024.06.29.24309698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
BACKGROUND The relationship between vitamin D and prostate cancer has primarily been characterized among White men. However, Black men have higher prostate cancer incidence and mortality rates, chronically low circulating vitamin D levels, and ancestry-specific genetic variants in vitamin D-related genes. Here, we examine six critical genes in the vitamin D pathway and prostate cancer risk in Black men. METHODS We assessed a total of 69 candidate variants in six genes ( GC, CYP27A1, CYP27B1, CYP24A1, VDR , and RXRA ) including functional variants previously associated with prostate cancer and circulating 25(OHD) in White men. Associations with prostate cancer risk were examined using genome-wide association study data for approximately 10,000 prostate cancer cases and 10,000 controls among Black men and over 85,000 cases and 91,000 controls among White men. A statistical significance threshold of 0.000724 was used to account for the 69 variants tested. RESULTS None of the variants examined were significantly associated with prostate cancer risk among Black men after multiple comparison adjustment. Four variants tested P<0.05 in Black men, including two in RXRA (rs41400444 OR=1.09, 95% CI: 1.01-1.17, P = 0.024 and rs10881574 OR = 0.93, 0.87-1.00, P = 0.046) and two in VDR (rs2853563 OR = 1.07, 1.01-1.13, P = 0.017 and rs1156882 OR = 1.06, 1.00-1.12, P = 0.045). Two variants in VDR were also positively associated with risk in White men (rs11568820 OR = 1.04, 1.02-1.06, P = 0.00024 and rs4516035 OR = 1.03, 1.01-1.04, P = 0.00055). CONCLUSION We observed suggestive non-significant associations between genetic variants in RXRA and VDR and prostate cancer risk in Black men. Future research exploring the relationship of vitamin D with cancer risk in Black men will need larger sample sizes to identify ancestry-specific variants relevant to risk in this population.
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Shi JW, Wu JN, Zhu XY, Zhou WH, Yang JY, Li MQ. Association of serum 25-hydroxyvitamin D levels with all-cause and cause-specific mortality among postmenopausal females: results from NHANES. J Transl Med 2023; 21:629. [PMID: 37715212 PMCID: PMC10504740 DOI: 10.1186/s12967-023-04413-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/02/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND Vitamin D deficiency is common among the population, but its relationship with mortality of postmenopausal females is unclear. The aim of this study is to explore the association between serum 25-Hydroxyvitamin D (25(OH)D) and all-cause and cause-specific mortality among postmenopausal women in the United States. METHODS 6812 participants of postmenopausal females from the National Health and Nutrition Examination Survey (2001-2018) were included in this study. The mortality status of the follow-up was ascertained by linkage to National Death Index (NDI) records through 31 December 2019. We used cox proportional hazards models to estimate the association of serum 25(OH)D concentrations and mortality of postmenopausal females. RESULTS The mean level of serum 25(OH)D was 72.57 ± 29.93 nmol/L, and 65.34% had insufficient vitamin D. In postmenopausal females, low serum 25(OH)D concentrations were significantly associated with higher levels of glycohemoglobin, glucose, and lower levels of HDL. During follow-up, 1448 all-cause deaths occurred, including 393 cardiovascular disease (CVD)-related deaths and 263 cancer deaths. After multivariate adjustment, higher serum 25(OH)D levels were significantly related with lower all-cause and CVD mortality. In addition, serum 25(OH)D presented a L-shaped relationship with all-cause mortality, while appeared a U-shaped with CVD mortality, and the cut-off value is 73.89 nmol/L and 46.75 nmol/L respectively. CONCLUSIONS Low serum 25(OH)D levels are associated with the higher risk of all-cause and CVD mortality in postmenopausal females. These findings provide new ideas and targets for the health management of postmenopausal women.
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Affiliation(s)
- Jia-Wei Shi
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200080, People's Republic of China
- Longgang District Maternity &, Child Healthcare Hospital of Shenzhen City, Longgang Maternity and Child Institute of Shantou University Medical College, Shenzhen, 518172, People's Republic of China
| | - Jiang-Nan Wu
- Clinical Epidemiology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200011, People's Republic of China
| | - Xiao-Yong Zhu
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200080, People's Republic of China.
| | - Wen-Hui Zhou
- Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100043, People's Republic of China.
| | - Jin-Ying Yang
- Longgang District Maternity &, Child Healthcare Hospital of Shenzhen City, Longgang Maternity and Child Institute of Shantou University Medical College, Shenzhen, 518172, People's Republic of China.
- Longgang Maternity and Child Clinical Institute of Shantou University Medical College, Shenzhen, Guangdong, 518172, People's Republic of China.
| | - Ming-Qing Li
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200080, People's Republic of China.
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200080, People's Republic of China.
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Gök F, Ekin S, Karaman E, Erten R, Yıldız D, Bakır A. Total Sialic Acid, Antioxidant Enzyme Activities, Trace Elements, and Vitamin Status Before and After Surgery in Women with Uterine Myoma and Endometrial Cancer. Reprod Sci 2023; 30:2743-2757. [PMID: 37069473 DOI: 10.1007/s43032-023-01241-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/06/2023] [Indexed: 04/19/2023]
Abstract
The objective of present study was to examine endometrial tissue Be, As, Cr, Mo, Sr, Ti, Tl, Cu, Co, Se, Zn, Mn, Fe, Cd, Pb, Mg, P, erythrocytes CAT, SOD, GSH-Px, GSH, MDA, serum retinol, cholecalciferol, phylloquinone, TSA, LSA, TOS, and TAS status and to evaluate the relationships between the variables. The study had 110 participants; of these, 50 were women with uterine myoma (UM), 10 were women with endometrial cancer (EC), and 50 were healthy female subjects. In the study, vitamin analyses by HPLC and element analyses were determined using ICP-OES method. It was observed that EC group was significantly lower than healthy group in terms of levels of cholecalciferol (p < 0.05), phylloquinone (p < 0.01), GSH (p < 0.05), Fe (p < 0.05), and had a significant rise in Mg/Fe (p < 0.01) and Zn/Fe (p < 0.05) in preoperative period. UM group had significantly lower retinol (p < 0.05), phylloquinone (p < 0.001), GSH-Px (p < 0.01), GSH (p < 0.01), Cr (p < 0.01), Cu (p < 0.05), Mg (p < 0.01), and Zn (p < 0.01) levels than control group in preoperative period and significantly higher levels of MDA (p < 0.01), TSA (p < 0.01), and LSA (p < 0.01) than control group. It was found that significant associations were observed between Cu-CA 15-3 (r = 0.558, p = 0.016), Mn-CA 15-3 (r = 0.511, p = 0.030), P-CA 15-3(r = - 0.502, p = 0.034) and with UM, also between GSH-CA-125 (r = - 0.825, p = 0.022) and with EC group. The results of correlation analysis observed that concentrations of Cu, Mn, P, and GSH together with CA 15-3 and CA-125 levels might be important for monitoring patients with UM and EC before surgery.
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Affiliation(s)
- Fazilet Gök
- Department of Chemistry, Division of Biochemistry, Institute of Natural and Applied Sciences, Van Yuzuncu Yil University, Van, Turkey
| | - Suat Ekin
- Department of Chemistry, Division of Biochemistry, Science Faculty, Van Yuzuncu Yil University, Van, Turkey.
| | - Erbil Karaman
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, Van Yuzuncu Yil University, Van, Turkey
| | - Remzi Erten
- Department of Medical Pathology, Van Yuzuncu Yil University, Van, Turkey
| | - Damla Yıldız
- Department of Chemistry, Division of Biochemistry, Institute of Natural and Applied Sciences, Van Yuzuncu Yil University, Van, Turkey
| | - Ahmet Bakır
- Department of Chemistry, Division of Biochemistry, Institute of Natural and Applied Sciences, Van Yuzuncu Yil University, Van, Turkey
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Anagnostis P, Livadas S, Goulis DG, Bretz S, Ceausu I, Durmusoglu F, Erkkola R, Fistonic I, Gambacciani M, Geukes M, Hamoda H, Hartley C, Hirschberg AL, Meczekalski B, Mendoza N, Mueck A, Smetnik A, Stute P, van Trotsenburg M, Rees M, Lambrinoudaki I. EMAS position statement: Vitamin D and menopausal health. Maturitas 2023; 169:2-9. [PMID: 36566517 DOI: 10.1016/j.maturitas.2022.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION There is increasing evidence that vitamin D has widespread tissue effects. In addition to osteoporosis, vitamin D deficiency has been associated with cardiovascular disease, diabetes, cancer, infections and neurodegenerative disease. However, the effect of vitamin D supplementation on non-skeletal outcomes requires clarification, especially in postmenopausal women. AIM This position statement provides an evidence-based overview of the role of vitamin D in the health of postmenopausal women based on observational and interventional studies. MATERIALS AND METHODS Literature review and consensus of expert opinion. RESULTS AND CONCLUSIONS Vitamin D status is determined by measuring serum 25-hydroxyvitamin D levels. Concentrations <20 ng/ml (<50 nmol/l) and <10 ng/ml (<25 nmol/l) are considered to constitute vitamin D deficiency and severe deficiency, respectively. Observational data suggest an association between vitamin D deficiency and adverse health outcomes in postmenopausal women, although they cannot establish causality. The evidence from randomized controlled trials concerning vitamin D supplementation is not robust, since many studies did not consider whether people were deficient at baseline. Moreover, high heterogeneity exists in terms of the population studied, vitamin D dosage, calcium co-administration and duration of intervention. Concerning skeletal health, vitamin D deficiency is associated with low bone mass and an increased risk of fractures. Vitamin D supplementation at maintenance doses of 800-2000 IU/day (20-50 μg/day), after repletion of vitamin D status with higher weekly or daily doses, may be of benefit only when co-administered with calcium (1000-1200 mg/day), especially in the elderly populations and those with severe vitamin D deficiency. Concerning cardiovascular disease, vitamin D deficiency is associated with an increased prevalence of cardiovascular risk factors, mainly metabolic syndrome, type 2 diabetes mellitus and dyslipidemia. Vitamin D deficiency, especially its severe form, is associated with an increased risk of cardiovascular events (coronary heart disease, stroke, mortality), independently of traditional risk factors. Vitamin D supplementation may have a modestly beneficial effect on lipid profile and glucose homeostasis, especially in obese individuals or those ≥60 years old and at doses of ≥2000 IU/day (≥50 μg/day). However, it has no effect on the incidence of cardiovascular events. Concerning cancer, vitamin D deficiency is associated with increased incidence of and mortality from several types of cancer, such as colorectal, lung and breast cancer. However, the data on other types of gynecological cancer are inconsistent. Vitamin D supplementation has no effect on cancer incidence, although a modest reduction in cancer-related mortality has been observed. Concerning infections, vitamin D deficiency has been associated with acute respiratory tract infections, including coronavirus disease 2019 (COVID-19). Vitamin D supplementation may decrease the risk of acute respiratory tract infections and the severity of COVID-19 (not the risk of infection). Concerning menopausal symptomatology, vitamin D deficiency may have a negative impact on some aspects, such as sleep disturbances, depression, sexual function and joint pains. However, vitamin D supplementation has no effect on these, except for vulvovaginal atrophy, at relatively high doses, i.e., 40,000-60,000 IU/week (1000-1500 IU/week) orally or 1000 IU/day (25 μg/day) as a vaginal suppository.
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Affiliation(s)
- Panagiotis Anagnostis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece.
| | | | - Dimitrios G Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Greece
| | | | - Iuliana Ceausu
- Department of Obstetrics and Gynecology I, "Carol Davila" University of Medicine and Pharmacy, "Dr. I. Cantacuzino" Clinical Hospital, Bucharest, Romania
| | - Fatih Durmusoglu
- Istanbul Medipol International School of Medicine, Istanbul, Turkey
| | - Risto Erkkola
- Department of Obstetrics and Gynecology, University Central Hospital, Turku, Finland
| | | | - Marco Gambacciani
- Menopause and Osteoporosis Unit, San Rossore Clinical Center, Pisa, Italy
| | - Marije Geukes
- Department of Obstetrics and Gynecology, Ziekenhuisgroep Twente (Hospital Group Twente), Post box 7600, 7600 SZ Almelo, the Netherlands
| | - Haitham Hamoda
- Department Gynaecology, King's College Hospital, Denmark Hill, London SE5 9RS, UK
| | - Caoimhe Hartley
- Menopause Health Clinic and The Rotunda Hospital, Dublin, Ireland
| | - Angelica Lindén Hirschberg
- Department of Women's and Children's Health, Karolinska Institutet and Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Blazej Meczekalski
- Department of Gynecological Endocrinology, Poznan University of Medical Sciences, Poznan, Poland
| | - Nicolas Mendoza
- Department of Obstetrics and Gynecology, University of Granada, Spain
| | - Alfred Mueck
- Department of Women's Health, University Hospital Tuebingen, Germany; Beijing OB/GYN Hospital, Capital Medical University, China
| | - Antonina Smetnik
- Department of Gynecological Endocrinology, National Medical Research Centre for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of the Russian Federation, Moscow, Russia
| | - Petra Stute
- Department of Obstetrics and Gynecology, University Clinic Inselspital, Bern, Switzerland
| | - Mick van Trotsenburg
- Sigmund Freud University, Vienna, Austria and Consultancy genderPRO, Vienna, Austria
| | - Margaret Rees
- Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Irene Lambrinoudaki
- Second Department of Obstetrics and Gynecology, Aretaieio Hospital, Medical School, National and Kapodistrian University of Athens, Greece
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Anagnostis P, Livadas S, Goulis DG, Rees M, Lambrinoudaki I. Vitamin D, Menopausal Health and COVID-19: Critical Appraisal of Current Data. J Clin Med 2023; 12:jcm12030916. [PMID: 36769563 PMCID: PMC9917790 DOI: 10.3390/jcm12030916] [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: 12/18/2022] [Revised: 01/15/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Inconsistency exists across studies conducted in postmenopausal women regarding the effect of vitamin D deficiency (VDD) and supplementation on several aspects of menopausal health, such as fractures, vasomotor symptomatology, cardiovascular disease (CVD), cancer and infections, including coronavirus disease 2019 (COVID-19). The aim of this review is to critically summarize the evidence provided by observational studies and randomized controlled trials (RCTs) of vitamin D supplementation in postmenopausal women with VDD. Observational studies have found that VDD is associated with an increased risk of falls and fractures after the menopause. VDD also has a negative effect on menopausal symptomatology. VDD, especially its severe form, is associated with an increased risk of CVD risk factors and CVD events. VDD is associated with increased risk and mortality from several cancer types and risk of infections. The evidence from RCTs regarding the effect of vitamin D supplementation on falls, fractures, menopausal symptoms, cardiovascular disease, cancer and infections is not robust. Thus, skeletal health may benefit only when vitamin D is co-administered with calcium, especially in those ≥70 years old and with severe VDD. There is no evidence of a favorable effect on menopausal symptoms or risk of CVD or cancer, except for a modest reduction in cancer-related mortality. Inconsistency still exists regarding its effect on infection risk, disease severity and mortality due to COVID-19.
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Affiliation(s)
- Panagiotis Anagnostis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 564 29 Thesssaloniki, Greece
- Correspondence: ; Tel.: +30-2310-257-150; Fax: +30-2310-281-179
| | | | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 564 29 Thesssaloniki, Greece
| | - Margaret Rees
- Women’s Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Irene Lambrinoudaki
- Second Department of Obstetrics and Gynecology, Aretaieio Hospital, Medical School, National and Kapodistrian University of Athens, 115 28 Athens, Greece
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Role of vitamin D 3 in selected malignant neoplasms. Nutrition 2020; 79-80:110964. [PMID: 32877827 DOI: 10.1016/j.nut.2020.110964] [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: 05/02/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
Vitamin D3 is a fat-soluble essential nutrient that affects multiple biologic functions in the organism through calcitriol and the vitamin D3 receptor. This review article focuses on the results of studies on the relationship between the level of vitamin D3 and cancer incidence or mortality, but also on the anticancer properties of vitamin D3 that support its significant role in the prevention, clinical course, and overall survival rates of selected cancers (colorectal, prostate, breast, ovarian, endometrial, bladder, and malignant melanoma). The mechanisms of vitamin D3 action involve, among others, polymorphism of vitamin D3 receptor, cell cycle, caspases, and cancer stem cells. The level of vitamin D3 has been also demonstrated to serve as a biomarker in some cancers, and high levels of vitamin D3 can be conducive to successful cancer therapy.
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Djurovic J, Stamenkovic G, Todorovic J, Aleksic N, Stojkovic O. Polymorphisms and haplotypes in VDR gene are associated with female idiopathic infertility. HUM FERTIL 2018; 23:101-110. [PMID: 30221569 DOI: 10.1080/14647273.2018.1515503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Unexplained infertility refers to the absence of a definable cause of reproductive failure. Vitamin D receptor (VDR) acts as a transcription factor and regulates a number of vitamin D-responsive genes, including those involved in the immune system. Recent finding that VDR is expressed in reproductive tissues suggests a possible importance of vitamin D in pregnancy. We conducted a case-control study to examine the association of polymorphisms in VDR gene with reproductive success. DNA from 117 female patients with unexplained infertility and 130 fertile controls was isolated from peripheral blood and VDR genotypes (FokI, BsmI, ApaI and TaqI) were detected by PCR-RFLP. Haplotypes were determined using Haploview software. Our results show significant association of FokI and BsmI polymorphisms with infertility (p < 0.05). The haplotype analysis confirmed strong linkage disequilibrium between closely positioned BsmI, ApaI and TaqI polymorphisms. Two haplotypes were associated with infertility: (i) haplotype bAT was increasing the risk for secondary infertility; while (ii) haplotype BAT had a protective role against primary infertility (p < 0.05). By changing the expression and the activity of VDR gene, which leads to the change in expression of vitamin D-responsive genes, these polymorphisms and haplotypes could possibly have an effect on immune system in the female reproductive tract.
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Affiliation(s)
- Jelena Djurovic
- Faculty of Medicine, Institute of Forensic Medicine, University of Belgrade, Belgrade, Serbia
| | - Gorana Stamenkovic
- Institute of Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Jelena Todorovic
- Specialized Medical Practice in the Field of Internal Medicine "Teamed", Belgrade, Serbia
| | - Natasa Aleksic
- Faculty of Medicine, Institute of Forensic Medicine, University of Belgrade, Belgrade, Serbia
| | - Oliver Stojkovic
- Faculty of Medicine, Institute of Forensic Medicine, University of Belgrade, Belgrade, Serbia
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Deuster E, Jeschke U, Ye Y, Mahner S, Czogalla B. Vitamin D and VDR in Gynecological Cancers-A Systematic Review. Int J Mol Sci 2017; 18:ijms18112328. [PMID: 29113037 PMCID: PMC5713297 DOI: 10.3390/ijms18112328] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 12/26/2022] Open
Abstract
In recent years, a vast amount of studies have centered on the role of vitamin D in the pathogenesis of certain types of cancers such as breast, colorectal and lung cancer. Increasing evidence suggests that vitamin D and its receptor play a crucial role in the development of gynecological cancers. In this review, we systematically analyzed the effect of vitamin D and the vitamin D receptor on endometrial, ovarian, cervical, vulvar and vaginal cancer. Our literature research shows that vitamin D levels and vitamin-D-related pathways affect the risk of gynecological cancers. Numerous ecological studies give evidence on the inverse relationship between UVB exposure and gynecological cancer risk. However, epidemiologic research is still inconclusive for endometrial and ovarian cancer and insufficient for rarer types of gynecological cancers. The vitamin D receptor (VDR) is upregulated in all gynecological cancers, indicating its influence on cancer etiology. The VDR polymorphism FokI (rs2228570) seems to increase the risk of ovarian cancer. Other nuclear receptors, such as the RXR, also influence gynecological cancers. Although there is limited knowledge on the role of the VDR/RXR on the survival of endometrial, cervical, vulvar or vaginal cancer patients, some studies showed that both receptors influence survival. Therefore, we suggest that further studies should focus on the vitamin D- and its hetero dimer receptor RXR in gynecological cancers.
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Affiliation(s)
- Eileen Deuster
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr 15, Munich 81377, Germany.
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr 15, Munich 81377, Germany.
| | - Yao Ye
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr 15, Munich 81377, Germany.
| | - Sven Mahner
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr 15, Munich 81377, Germany.
| | - Bastian Czogalla
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr 15, Munich 81377, Germany.
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Kitson SJ, Evans DG, Crosbie EJ. Identifying High-Risk Women for Endometrial Cancer Prevention Strategies: Proposal of an Endometrial Cancer Risk Prediction Model. Cancer Prev Res (Phila) 2016; 10:1-13. [DOI: 10.1158/1940-6207.capr-16-0224] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/20/2016] [Accepted: 11/21/2016] [Indexed: 11/16/2022]
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Jolfaie NR, Rouhani MH, Onvani S, Azadbakht L. The association between Vitamin D and health outcomes in women: A review on the related evidence. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2016; 21:76. [PMID: 27904621 PMCID: PMC5122178 DOI: 10.4103/1735-1995.189693] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/08/2016] [Accepted: 05/25/2016] [Indexed: 12/18/2022]
Abstract
Background: Vitamin D has a wide range of physiological functions in skeletal and nonskeletal tissues which may play a role in many diseases. The aim of this study was to evaluate the recent evidence regarding the effects of Vitamin D on several health outcomes in women including breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis. Materials and Methods: We searched PubMed and Google Scholar databases through March 2016. We included the most current systematic reviews and meta-analyses assessing the associations of Vitamin D intake and/or serum 25-hydroxyvitamin D (25(OH)D) levels with the risk of incidence of breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis. Results: Many studies have represented that Vitamin D supplementation and high 25(OH)D levels can decrease the risk of breast cancer occurrence or mortality. However, there is no strong evidence to support the existence of a relationship between Vitamin D and ovarian or endometrial cancers. Furthermore, the results regarding the effects of Vitamin D on hypertension were inconsistent. Although observational studies have shown an association between Vitamin D and hypertension, there is no evidence regarding effectiveness of Vitamin D in lowering blood pressure in several clinical trials. On the other hand, the findings associating the impact of Vitamin D on osteoporosis were more definitive and most studies have represented that Vitamin D may have beneficial effects on osteoporosis. Conclusion: Although the adequate Vitamin D level can play a protective role in the incidence and development of breast cancer, hypertension, and osteoporosis, there is limited evidence regarding ovarian and endometrial cancers.
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Affiliation(s)
- Nahid Ramezani Jolfaie
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Hossein Rouhani
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shokouh Onvani
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutrition and Food Sciences, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Isfahan, Iran; Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Tagliabue E, Raimondi S, Gandini S. Meta-analysis of vitamin D-binding protein and cancer risk. Cancer Epidemiol Biomarkers Prev 2015; 24:1758-65. [PMID: 26364161 DOI: 10.1158/1055-9965.epi-15-0262] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 08/17/2015] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Epidemiologic evidence supported a role for vitamin D and vitamin D receptor (VDR) polymorphisms in cancer risk. Beyond VDR, the biologic effects of vitamin D are mediated by the vitamin D-binding protein (DBP), a key protein in vitamin D metabolism. Furthermore, the gene encoding the DBP (GC, group-specific component) has an important role in the vitamin D pathway. Several studies investigated DBP serologic levels and GC polymorphisms in association with cancer risk with controversial results. Thus, we carried out a meta-analysis to investigate these associations. METHODS We included 28 independent studies concerning the following tumors: basal cell carcinoma, bladder, breast, colon-rectum, endometrium, liver, esophagus, stomach, melanoma, pancreas, prostate, and kidney. Through random-effect models, we calculated the summary odds ratios (SOR) for serum DBP and the GC polymorphisms rs2282679, rs12512631, rs7041, rs4588, rs17467825, rs1155563, and rs1352844. RESULTS We found a borderline decrease in cancer risk for subjects with high compared with low levels of DBP [SOR, 0.75; 95% confidence interval (CI), 0.56-1.00]. Dose-response meta-analysis indicates a nonsignificant decrease risk for an increase of 1,000 nmol/L of DBP (SOR, 0.96; 95% CI, 0.91-1.01). We found no significant alterations in cancer risk for subjects carrying any of the studied GC polymorphisms compared with wild-type subjects both in the main analysis and in analyses stratified by cancer type and ethnicity. CONCLUSIONS We found trends toward significance, suggesting a role of DBP in cancer etiology, which should be confirmed in further studies. IMPACT To our knowledge, this is the first study to investigate GC polymorphisms and DBP serologic levels in association with any type of cancer.
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Affiliation(s)
- Elena Tagliabue
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Sara Raimondi
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Sara Gandini
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy.
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Tagliabue E, Raimondi S, Gandini S. Vitamin D, Cancer Risk, and Mortality. ADVANCES IN FOOD AND NUTRITION RESEARCH 2015; 75:1-52. [PMID: 26319903 DOI: 10.1016/bs.afnr.2015.06.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Antiproliferative effects of 1,25-dihydroxyvitamin D, the biologically active form of vitamin D, are well established in various cell types by influencing cell differentiation and decreasing cell proliferation, growth, invasion, angiogenesis, and metastasis. Several meta-analyses showed that low serum levels of 25(OH)D was associated with colorectal cancer and overall mortality, while the association with cancer mortality was less consistent. VDR is a crucial mediator for the cellular effects of vitamin D and conflicting data have been reported for most malignancies. Beyond VDR, the biological effects of vitamin D are mediated by the vitamin D-binding protein. The GC (group-specific component) gene, encoding DBP, is highly polymorphic and several polymorphisms were investigated in association with cancer development with controversial results. Vitamin D supplementation was found to be associated with a reduced risk of overall mortality, reviewing all published trials on healthy subjects, whereas the evidence of an effect on cancer risk and mortality is less clear. Furthermore, long-term health effects of high doses of vitamin D, extended duration of supplementation, and the association with different baseline vitamin D levels remain to be investigated. In summary, epidemiological and preclinical studies support the development of vitamin D as preventative and therapeutic anticancer agents, with significant associations especially found for low vitamin D status with overall mortality and cancer outcome, more than cancer incidence. However, a definitive conclusion cannot be drawn and only large randomized clinical trials, both in healthy subjects and in cancer patients, will allow to draw definitive conclusions on the effect of vitamin D supplementation on cancer risk, prognosis, and mortality.
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Affiliation(s)
- Elena Tagliabue
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Sara Raimondi
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Sara Gandini
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy.
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Ding N, Dear K, Guo S, Xiang F, Lucas R. Tightrope Walking: Using Predictors of 25(OH)D Concentration Based on Multivariable Linear Regression to Infer Associations with Health Risks. PLoS One 2015; 10:e0125551. [PMID: 26017695 PMCID: PMC4445919 DOI: 10.1371/journal.pone.0125551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 03/24/2015] [Indexed: 11/19/2022] Open
Abstract
The debate on the causal association between vitamin D status, measured as serum concentration of 25-hydroxyvitamin D (25[OH]D), and various health outcomes warrants investigation in large-scale health surveys. Measuring the 25(OH)D concentration for each participant is not always feasible, because of the logistics of blood collection and the costs of vitamin D testing. To address this problem, past research has used predicted 25(OH)D concentration, based on multivariable linear regression, as a proxy for unmeasured vitamin D status. We restate this approach in a mathematical framework, to deduce its possible pitfalls. Monte Carlo simulation and real data from the National Health and Nutrition Examination Survey 2005-06 are used to confirm the deductions. The results indicate that variables that are used in the prediction model (for 25[OH]D concentration) but not in the model for the health outcome (called instrumental variables), play an essential role in the identification of an effect. Such variables should be unrelated to the health outcome other than through vitamin D; otherwise the estimate of interest will be biased. The approach of predicted 25(OH)D concentration derived from multivariable linear regression may be valid. However, careful verification that the instrumental variables are unrelated to the health outcome is required.
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Affiliation(s)
- Ning Ding
- Faculty of Health, University of Canberra, Canberra, ACT, 2601, Australia
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, 2600, Australia
- * E-mail:
| | - Keith Dear
- Duke Global Health Institute, Duke Kunshan University, Kunshan, Jiangsu, 215316, China
| | - Shuyu Guo
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, 2600, Australia
| | - Fan Xiang
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, 2600, Australia
| | - Robyn Lucas
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, 2600, Australia
- Telethon Kids Institute, University of Western Australia, Perth, WA, 6009, Australia
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