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Mohanad M, Mohamed SK, Aboulhoda BE, Ahmed MAE. Neuroprotective effects of vitamin D in an Alzheimer's disease rat model: Improvement of mitochondrial dysfunction via calcium/calmodulin-dependent protein kinase kinase 2 activation of Sirtuin1 phosphorylation. Biofactors 2024; 50:371-391. [PMID: 37801071 DOI: 10.1002/biof.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/17/2023] [Indexed: 10/07/2023]
Abstract
Mitochondrial dysfunction is an early event in Alzheimer's disease (AD) pathogenesis. To assess the impact of vitamin D3 (Vit.D) on neurogenesis, we investigated its role in mitigating cognitive impairment and mitochondrial dysfunction through calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2)-mediated phosphorylation of Sirtuin1 (SIRT1) in an aluminum-chloride-D-galactose (AlCl3-D-gal)-induced AD rat model. Rats were distributed into four groups: control, AlCl3 + D-gal (10 + 60 mg/kg, ip), Vit.D (500 IU/kg, po), and AlCl3 + D-gal+Vit.D. Novel object recognition (NOR), Morris Water Maze, and passive avoidance (PA) tests were used to measure memory abilities. The hippocampal tissue was used to assess vitamin D3 receptor (VDR) and peroxisome-proliferator-activated-receptor-γ-coactivator-1α (PGC-1α) expression by quantitative real-time polymerase chain reaction (qRT-PCR), CAMKK2, p-SIRT1, phosphorylated-AMP-activated protein kinase (p-AMPK), dynamin-related-protein-1 (Drp1), and mitofusin-1 (Mnf1) proteins by western blot and Ca2+ levels, endothelial nitic oxide synthase (eNOS), superoxide dismutase (SOD), amyloid beta (Aβ), and phospho tau (p-Tau) via enzyme-linked immunosorbent assay(ELISA) in addition to histological and ultrastructural examination of rat's brain tissue. Vit.D-attenuated hippocampal injury reversed the cognitive decline and Aβ aggregation, and elevated p-Tau levels in the AlCl3 + D-gal-induced AD rat model. In AlCl3 + D-gal-exposed rats, Vit.D induced VDR expression, normalized Ca2+ levels, elevated CAMKK2, p-AMPK, p-SIRT1, and PGC-1α expression. Vit.D reduced Drp1, induced Mnf1, increased mitochondrial membrane potential, preserved mitochondrial structure, restored normal mitochondrial function, and retained normal eNOS level and SOD activity in AlCl3 + D-gal rats. In conclusion, our findings proved that Vit.D may ameliorate cognitive deficits in AlCl3 + D-gal-induced AD by restoring normal mitochondrial function and reducing inflammatory and oxidative stress via CAMKK2-AMPK/SIRT1 pathway upregulation.
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Affiliation(s)
- Marwa Mohanad
- Department of Biochemistry, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
| | - Shimaa K Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Basma E Aboulhoda
- Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Maha A E Ahmed
- Department of Pharmacology and Toxicology, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
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Hori M, Takahashi H, Kondo C, Hayashi F, Tokoroyama S, Mori Y, Tsujita M, Shirasawa Y, Takeda A, Morozumi K, Maruyama S. Association between Serum 25-Hydroxyvitamin D Levels and Sarcopenia in Patients Undergoing Chronic Haemodialysis. Am J Nephrol 2024; 55:399-405. [PMID: 38310857 DOI: 10.1159/000536582] [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: 12/05/2023] [Accepted: 01/31/2024] [Indexed: 02/06/2024]
Abstract
INTRODUCTION Sarcopenia and vitamin D deficiency are highly prevalent among patients undergoing haemodialysis. Although vitamin D deficiency, assessed using serum 25-hydroxyvitamin D (25(OH)D) levels, is known to be associated with sarcopenia in the general population, whether serum 25(OH)D levels are associated with sarcopenia in patients undergoing haemodialysis with suppressed renal activation of 25(OH)D remains unclear. This study aimed to examine the association between serum 25(OH)D levels and sarcopenia in patients undergoing haemodialysis. METHODS Serum 25(OH)D level measurements and assessment of sarcopenia using the Asian Working Group for Sarcopenia criteria were conducted in 95 stable outpatients undergoing maintenance haemodialysis therapy. RESULTS Sarcopenia was observed in 22 (23.1%) patients. In multiple logistic regression analysis, serum 25(OH)D levels were associated with sarcopenia (odds ratio [OR] 0.87, 95% confidence interval [CI] 0.77-0.99, p = 0.039) independent of traditional risk factors for sarcopenia. In multiple linear regression analyses, serum 25(OH)D levels were associated with parameters of skeletal muscle mass and strength (β = 0.145, p = 0.046, and β = 0.194, p = 0.020, respectively). The adjusted OR for sarcopenia was 5.60 (95% CI 1.52-20.57, p = 0.009) in the vitamin D deficiency group categorized based on the cut-off serum 25(OH)D level of 10 ng/mL. Regarding model discrimination, adding vitamin D deficiency to the traditional risk factors significantly improved the integrated discrimination improvement score (0.093, p = 0.007). CONCLUSION Lower serum 25(OH)D levels were associated with sarcopenia independent of traditional risk factors in patients undergoing haemodialysis with suppressed vitamin D activation in the kidney. This finding implies that circulating 25(OH)D may have an important relationship with the skeletal muscle function of patients undergoing haemodialysis, and its measurement may be recommended to identify patients at high risk for sarcopenia among those undergoing haemodialysis.
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Affiliation(s)
- Mayuko Hori
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Hiroshi Takahashi
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Chika Kondo
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Fumihito Hayashi
- Department of Rehabilitation, Masuko Memorial Hospital, Nagoya, Japan
| | | | - Yoshiko Mori
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Makoto Tsujita
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Yuichi Shirasawa
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Asami Takeda
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Kunio Morozumi
- Department of Nephrology, Masuko Memorial Hospital, Nagoya, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Naser IA, Abutair AS, Zourob RJ, Qeshta RI, Tawil RL, Lafi AH, Bardwil RW, Tabasi FM. Nutritional Assessment of Adult Patients Undergoing Maintenance Hemodialysis in the Gaza Strip. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2023; 34:1-12. [PMID: 38092711 DOI: 10.4103/1319-2442.390997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
Malnutrition is a common condition in patients undergoing hemodialysis (HD), and it is associated with increased morbidity and mortality. The main objective of the study was to evaluate the nutritional status of patients on maintenance HD. After applying eligibility criteria, 141 HD patients attending major governmental dialysis centers were randomly recruited in this cross-sectional study and assessed for nutritional status using the Patient-Generated Subjective Global Assessment (PG-SGA) tool. The PG-SGA categorizes patients as well-nourished, moderately malnourished, and severely malnourished. Different anthropometric measurements, laboratory investigations, blood pressure measurements, and 24-h dietary recall were collected from each patient. According to PG- SGA results, 78% of patients were moderately malnourished and 22% of patients were severely malnourished. The mean body mass index was 27.8 kg/m2, and 5.7% of patients were underweight. There were significant differences in the mid-upper arm muscle circumference (P = 0.020) between the PG-SGA groups. The total energy and protein intake were significantly (P <0.001) less than the recommended dietary intake by 1268.9 kcal and 41.4 g, respectively. The albumin level in 37.6% of patients was less than the normal level, and the results indicated that there were significant differences in serum iron (P = 0.022) between the moderately and severely malnourished patients. The results of this study indicated that all HD patients were suffering from different degrees of malnutrition and, unfortunately, most of their energy and nutrient intake was far less than the requirements, which might be the reason why they face nutritional and health risks.
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Affiliation(s)
- Ihab A Naser
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Al-Azhar University, Gaza, Palestine
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4
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Asghari A, Jafari F, Jameshorani M, Chiti H, Naseri M, Ghafourirankouhi A, Kooshkaki O, Abdshah A, Parsamanesh N. Vitamin D role in hepatitis B: focus on immune system and genetics mechanism. Heliyon 2022; 8:e11569. [DOI: 10.1016/j.heliyon.2022.e11569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/01/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
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Henn M, Martin-Gorgojo V, Martin-Moreno JM. Vitamin D in Cancer Prevention: Gaps in Current Knowledge and Room for Hope. Nutrients 2022; 14:4512. [PMID: 36364774 PMCID: PMC9657468 DOI: 10.3390/nu14214512] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 08/03/2023] Open
Abstract
Intensive epigenome and transcriptome analyses have unveiled numerous biological mechanisms, including the regulation of cell differentiation, proliferation, and induced apoptosis in neoplastic cells, as well as the modulation of the antineoplastic action of the immune system, which plausibly explains the observed population-based relationship between low vitamin D status and increased cancer risk. However, large randomized clinical trials involving cholecalciferol supplementation have so far failed to show the potential of such interventions in cancer prevention. In this article, we attempt to reconcile the supposed contradiction of these findings by undertaking a thorough review of the literature, including an assessment of the limitations in the design, conduct, and analysis of the studies conducted thus far. We examine the long-standing dilemma of whether the beneficial effects of vitamin D levels increase significantly above a critical threshold or if the conjecture is valid that an increase in available cholecalciferol translates directly into an increase in calcitriol activity. In addition, we try to shed light on the high interindividual epigenetic and transcriptomic variability in response to cholecalciferol supplementation. Moreover, we critically review the standards of interpretation of the available study results and propose criteria that could allow us to reach sound conclusions in this field. Finally, we advocate for options tailored to individual vitamin D needs, combined with a comprehensive intervention that favors prevention through a healthy environment and responsible health behaviors.
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Affiliation(s)
- Matthias Henn
- Department of Preventive Medicine and Public Health, University of Navarra-IdiSNA (Instituto de Investigación Sanitaria de Navarra), 31008 Pamplona, Spain
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Victor Martin-Gorgojo
- Biomedical Research Institute INCLIVA, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
- Orthopedic Surgery and Traumatology Department, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
| | - Jose M. Martin-Moreno
- Biomedical Research Institute INCLIVA, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
- Department of Preventive Medicine and Public Health, Universitat de Valencia, 46010 Valencia, Spain
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Bajbouj K, Al-Ali A, Shafarin J, Sahnoon L, Sawan A, Shehada A, Elkhalifa W, Saber-Ayad M, Muhammad J, Elmoselhi AB, Guraya S, Hamad M. Vitamin D Exerts Significant Antitumor Effects by Suppressing Vasculogenic Mimicry in Breast Cancer Cells. Front Oncol 2022; 12:918340. [PMID: 35747793 PMCID: PMC9210804 DOI: 10.3389/fonc.2022.918340] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/09/2022] [Indexed: 12/24/2022] Open
Abstract
BackgroundNumerous clinical and experimental observations have alluded to the substantial anti-neoplastic role of vitamin D in breast cancer (BC), primarily by inducing apoptosis and affecting metastasis. Tumor progression and resistance to chemotherapy have been linked to vasculogenic mimicry (VM), which represents the endothelial-independent formation of microvascular channels by cancer cells. However, the effect of vitamin D on VM formation in BC has not been thoroughly investigated. This study examined the impact of 1α,25-dihydroxyvitamin D3 (calcitriol), the active form of vitamin D, on the expression of major factors involved in BC migration, invasion, and VM formation.Experimental MethodsPublicly available transcriptomic datasets were used to profile the expression status of the key VM markers in vitamin D-treated BC cells. The in silico data were validated by examining the expression and activity of the key factors that are involved in tumor progression and MV formation in hormone-positive MCF-7 and aggressive triple‐negative MDA-MB-231 BC cells after treatment with calcitriol.Results and DiscussionsThe bioinformatics analysis showed that tumor VM formation-enriched pathways were differentially downregulated in vitamin D-treated cells when compared with control counterparts. Treatment of BC cells with calcitriol resulted in increased expression of tissue inhibitors of metalloproteinases (TIMPs 1 and 2) and decreased content and gelatinolytic activity of matrix metalloproteinases (MMPs 2 and 9). Furthermore, calcitriol treatment reduced the expression of several pro-MV formation regulators including vascular endothelial growth factor (VEGF), tumor growth factor (TGF-β1), and amphiregulin. Eventually, this process resulted in a profound reduction in cell migration and invasion following the treatment of BC cells with calcitriol when compared to the controls. Finally, the formation of VM was diminished in the aggressive triple‐negative MDA-MB-231 cancer cell line after calcitriol treatment.ConclusionOur findings demonstrate that vitamin D mediates its antitumor effects in BC cells by inhibiting and curtailing their potential for VM formation.
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Affiliation(s)
- Khuloud Bajbouj
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- *Correspondence: Khuloud Bajbouj,
| | - Abeer Al-Ali
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Jasmin Shafarin
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Lina Sahnoon
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmad Sawan
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed Shehada
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Maha Saber-Ayad
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Medical Pharmacology Department, Cairo University, Cairo, Egypt
| | - Jibran Sualeh Muhammad
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Adel B. Elmoselhi
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Salman Y. Guraya
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Mawieh Hamad
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
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7
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Lovell P, Bullen K. Vitamin D levels in hospice in-patients. BMJ Support Palliat Care 2021; 13:244-246. [PMID: 34782345 DOI: 10.1136/bmjspcare-2021-003113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 10/12/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Serum 25-hydroxyvitamin D was obtained alongside routine blood tests in all suitable patients admitted to the St Cuthbert's Hospice Inpatient Unit for a period of 12 months. Supplementation was offered to exclude vitamin D insufficiency or deficiency as a contributor to the complex pain and symptom profile of our patients. METHODS During admission, and alongside routine blood tests, a serum 25-hydroxyvitamin D test was requested for suitable patients. Supplementation was offered to patients with serum 25-hydroxyvitamin D less than 50 nmol/L. RESULTS This audit identified that 79.73% of patients assessed had a 25-hydroxyvitamin D level less than 50 nmol/L and were therefore insufficient or deficient in vitamin D. The results of the audit were discussed within the clinical team at the hospice and guidance changed to obtain serum 25-hydroxyvitamin D levels in all suitable patients. A reaudit highlighted that some patients were missed from testing and therefore reminders were sent to the clinical team. CONCLUSIONS Most patients admitted to St Cuthbert's Hospice had either insufficient or deficient levels of vitamin D. It seems reasonable for all suitable palliative care patients to have their vitamin D level checked and to be started on a suitable dose of vitamin D replacement therapy.
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Affiliation(s)
| | - Kathryn Bullen
- St Cuthbert's Hospice, Durham, UK .,Faculty of Health Sciences and Wellbeing, University of Sunderland, Sunderland, UK
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Getachew B, Tizabi Y. Vitamin D and COVID-19: Role of ACE2, age, gender, and ethnicity. J Med Virol 2021; 93:5285-5294. [PMID: 33990955 PMCID: PMC8242434 DOI: 10.1002/jmv.27075] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 01/08/2023]
Abstract
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, disproportionally targets older people, particularly men, ethnic minorities, and individuals with underlying diseases such as compromised immune system, cardiovascular disease, and diabetes. The discrepancy in COVID-19 incidence and severity is multifaceted and likely involves biological, social, as well as nutritional status. Vitamin D deficiency, notably common in Black and Brown people and elderly, is associated with an increased susceptibility to many of the diseases comorbid with COVID-19. Vitamin D deficiency can cause over-activation of the pulmonary renin-angiotensin system (RAS) leading to the respiratory syndrome. RAS is regulated in part at least by angiotensin-converting enzyme 2 (ACE2), which also acts as a primary receptor for SARS-CoV-2 entry into the cells. Hence, vitamin D deficiency can exacerbate COVID-19, via its effects on ACE2. In this review we focus on influence of age, gender, and ethnicity on vitamin D-ACE2 interaction and susceptibility to COVID-19.
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Affiliation(s)
- Bruk Getachew
- Department of PharmacologyCollege of Medicine, Howard UniversityWashington DCUSA
| | - Yousef Tizabi
- Department of PharmacologyCollege of Medicine, Howard UniversityWashington DCUSA
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Ni M, Zhang Q, Zhao J, Shen Q, Yao D, Wang T, Liu Z. Relationship between maternal vitamin D status in the first trimester of pregnancy and maternal and neonatal outcomes: a retrospective single center study. BMC Pediatr 2021; 21:330. [PMID: 34325665 PMCID: PMC8320191 DOI: 10.1186/s12887-021-02730-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 05/17/2021] [Indexed: 12/28/2022] Open
Abstract
Background This study aimed to investigate the relationship between maternal serum vitamin D status in the first trimester of pregnancy and maternal as well as neonatal outcomes, considered the prevalence of vitamin D deficiency (serum 25(OH)D < 50 nmol/L) around the world, especially in the pregnant women. Methods From January 2015 to December 2016, in this cross-sectional retrospective study, we enrolled women receiving regular prenatal examinations and giving birth in the International Peace Maternity and Child Health Hospital. Cases confirmed as multiple pregnancy, incomplete medical records, and vitamin D level recorded after 13 weeks of gestation were excluded. A total of 23,394 mother-infant pairs were included ultimately. Obstetric and neonatal information were extracted from the database. Maternal serum vitamin D concentration was measured by chemiluminescence microparticle immunoassay. Logistic regression analysis (unadjusted and adjusted models) was used to analyze the association between vitamin D and maternal and neonatal outcomes. Results The average 25(OH) D concentration was 43.20 ± 0.10 nmol/L; 67.09% of patients were vitamin D deficient(25(OH) D < 50.00 nmol/L), 29.84% were vitamin D insufficient (50 nmol/L ≤ 25(OH)D < 75 nmol/L), 3.07% were sufficient (25(OH)D ≥ 75 nmol/L). The maternal 25(OH)D levels varied with age, pre-pregnancy BMI, season when blood sample was collected, number of previous-pregnancy. Notably, newborns delivered by women with deficient vitamin D status had a higher incidence rate of admission to NICU (Deficiency: 12.20% vs Insufficiency: 10.90% vs Sufficiency: 11.70%, Pbonferroni = .002) and a longer stay (deficiency: 6.2 ± 4.1 days vs insufficiency: 5.9 ± 3.1 days vs sufficiency: 5.1 ± 2.1 days, Pbonferroni = .010). Moreover, maternal vitamin D deficiency was a dependent risk factor for admission to NICU (unadjusted OR = 1.35, 95% CI,1.05–1.74 Pbonferroni = .022; adjusted OR = 1.31, 95% CI,1.010–1.687 Pbonferroni = .042). Conclusions Maternal vitamin D deficiency (25(OH) D < 50 nmol/L) was prevalent in eastern coastal China. The incidence rate of GDM as well as preeclampsia was higher in vitamin D insufficient group while vitamin D deficiency group was liable to intrauterine infection when compared with the other two groups. Most importantly, low vitamin D status in the first trimester of pregnancy was a dependent risk factor for admission to NICU. More well-designed perspective researches are necessary to clarify the role of vitamin D in the early stage of pregnancy.
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Affiliation(s)
- Meng Ni
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Qianqian Zhang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Jiuru Zhao
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Qianwen Shen
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Dongting Yao
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Tao Wang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China.,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China
| | - Zhiwei Liu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910# Hengshan Road, Shanghai, 20030, China. .,International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. .,Shanghai Key Laboratory of Embryo Original Disease, Shanghai, China.
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10
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Meléndez-Flores JD, Estrada-Bellmann I. Linking chronic kidney disease and Parkinson's disease: a literature review. Metab Brain Dis 2021; 36:1-12. [PMID: 32990929 DOI: 10.1007/s11011-020-00623-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
Abstract
Chronic kidney disease (CKD) has been typically implicated in cardiovascular risk, considering the function the kidney has related to blood pressure, vitamin D, red blood cell metabolism, and electrolyte and acid-base regulation. However, neurological consequences are also attributed to this disease. Among these, recent large epidemiological studies have demonstrated an increased risk for Parkinson's disease (PD) in patients with CKD. Multiple studies have evaluated individually the association of blood pressure, vitamin D, and red blood cell dysmetabolism with PD, however, no study has reviewed the potential mechanisms related to these components in context of CKD and PD. In this review, we explored the association of CKD and PD and linked the components of the former to propose potential pathways explaining a future increased risk for PD, where renin-angiotensin system, oxidative stress, and inflammation have a main role. Potential preventive and therapeutic interventions based on these associations are also explored. More preclinical studies are needed to confirm the potential link of CKD conditions and future PD risk, whereas more interventional studies targeting this association are warranted to confirm their potential benefit in PD.
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Affiliation(s)
- Jesús D Meléndez-Flores
- Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos S/N, 64700, Monterrey, NL, Mexico
- Faculty of Medicine, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Ingrid Estrada-Bellmann
- Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos S/N, 64700, Monterrey, NL, Mexico.
- Movement Disorders Clinic, Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Monterrey, Mexico.
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Hoong CWS, Huilin K, Cho S, Aravamudan VM, Lin JHX. Are Adequate Vitamin D Levels Helpful in Fighting COVID-19? A Look at the Evidence. Horm Metab Res 2020; 52:775-783. [PMID: 32942311 DOI: 10.1055/a-1243-5462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
COVID-19 is a global pandemic with high mortality in vulnerable groups. Given the current lack of definitive treatment or vaccine that significantly reduces mortality rate, governments, researchers and healthcare providers are racing to find possible solutions to the crisis. Vitamin D and its analogues have been previously studied for their non-skeletal benefits. In particular, questions regarding their role in the modulation of immunity have re-surfaced, in view of possible epidemiological links observed between COVID-19 and vitamin D levels in selected populations. In this review, we highlight potential mechanisms and summarise the evidence for and against the potential role of vitamin D supplementation in our fight against COVID-19.
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Affiliation(s)
| | - Koh Huilin
- Woodlands Health Campus, National Healthcare Group, Singapore
| | - Sanda Cho
- Warrington and Halton Hospitals NHS Foundation Trust, Warrington, United Kingdom
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12
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Chen NC, Hsu CY, Mao PCM, Dreyer G, Wu FZ, Chen CL. The effects of correction of vitamin D deficiency on arterial stiffness: A systematic review and updated meta-analysis of randomized controlled trials. J Steroid Biochem Mol Biol 2020; 198:105561. [PMID: 31809869 DOI: 10.1016/j.jsbmb.2019.105561] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 10/23/2019] [Accepted: 12/02/2019] [Indexed: 12/31/2022]
Abstract
It is unclear whether nutritional vitamin D supplementation in vitamin d-deficient persons improves arterial stiffness. To conduct a meta-analysis of the effects of the nutritional vitamin D therapy on arterial stiffness in adults with vitamin D deficiency, the Scopus, PUBMED, EMBASE, and Cochrane databases were searched for systematic reviews conducted up to October 5, 2018. Randomized clinical trials that compared nutritional vitamin D therapy with placebo in adults with vitamin D deficiency were eligible. Two reviewers independently evaluated eligibility of all retrieved studies based on titles and abstracts. Meta-analysis was performed using random effect or fixed effects model and inverse variance method was used to calculate the effect using standardized mean difference (SMD) and weighted mean difference. A leave-one-out method was used for sensitivity analysis. The main outcome was arterial stiffness, indicated by the carotid-femoral pulse wave velocity (PWV). We identified 237 records, of which 9 satisfied the inclusion criteria of the study. Our meta-analysis included relatively high-quality placebo-controlled randomized trials. In a random-effects model, nutritional vitamin D was associated with significant reductions in the pooled difference of PWV [(SMD: -0.29; 95 % CI: -0.51 to -0.06), p = 0.01; Cochran's Q test: chi2 = 21.85; df = 9; p = 0.009; I2 = 59 %; n = 909 from 9 studies]. All sensitivity analyses yielded similar results. Nutritional vitamin D supplementation significantly improved arterial stiffness (PWV) in several subgroups by correcting vitamin D deficiency, for a study duration of ≥4 months and a daily dose of vitamin D3 ≥ 2000 IU. The study indicated that the correction of vitamin D deficiency by nutritional vitamin D supplementation may improve arterial stiffness in vitamin d-deficient persons, especially by the correction of vitamin D deficiency with a daily dose of vitamin D3 ≥ 2000 IU. However, further studies are required to confirm this.
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Affiliation(s)
- Nai-Ching Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Yang Hsu
- Division of Nephrology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Pili Chi-Ming Mao
- Department of Pharmacology, Kaohsiung Veterans General Hospital, Taiwan
| | - Gavin Dreyer
- Department of Translational Medicine and Therapeutics, Queen Mary University of London, United Kingdom
| | - Fu-Zong Wu
- Department of Radiology, Kaohsiung Veterans General Hospital, Taiwan; Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chien-Liang Chen
- Division of Nephrology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.
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13
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Filipović N, Bočina I, Restović I, Grobe M, Kretzschmar G, Kević N, Mašek T, Vitlov Uljević M, Jurić M, Vukojević K, Saraga-Babić M, Vuica A. Ultrastructural characterization of vitamin D receptors and metabolizing enzymes in the lipid droplets of the fatty liver in rat. Acta Histochem 2020; 122:151502. [PMID: 31932064 DOI: 10.1016/j.acthis.2020.151502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/11/2019] [Accepted: 11/11/2019] [Indexed: 01/10/2023]
Abstract
Vitamin D is a steroid hormone with numerous actions in the organism. There are strong evidences that relate vitamin D deficiency with liver lipid metabolism disturbances, but the mechanism of this action is still unknown. In our previous work we postulated the localization and accumulation of vitamin D receptor (VDR) in membrane of the lipid droplets (LDs) in hepatocytes. In this study, we applied the transmission electron microscopy (TEM) to confirm this hypothesis by using a long-term (6 months) high sucrose intake rat model that was previously found to be appropriate for research of the hepatic lipid accumulation. In addition to the VDR, we also found key vitamin D metabolizing enzymes, 1α-hydroxylase and CYP 24 associated with the membrane of the LDs. A light-microscopy data revealed significant increase in expression of VDR and CYP 24 in liver of high-sucrose treated rats, in comparison to controlones. According to the best of our knowledge, this is a first study confirming the presence of the VDR in the membrane of the LDs in general and also in particular in LDs of the hepatocytes that were accumulated as a consequence of the prolonged high sucrose intake. Moreover, we found association of main vitamin D metabolizing enzymes with LD membrane. These results provide a new insight in the possible relation of vitamin D signalling system with LD morphology and function and with the lipid metabolism in general.
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14
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Native Hypovitaminosis D in CKD Patients: From Experimental Evidence to Clinical Practice. Nutrients 2019; 11:nu11081918. [PMID: 31443249 PMCID: PMC6723756 DOI: 10.3390/nu11081918] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 12/12/2022] Open
Abstract
Native hypovitaminosis D (n-hVITD) is frequently found from the early stages of chronic kidney disease (CKD) and its prevalence increases with CKD progression. Even if the implications of n-hVITD in chronic kidney disease-mineral bone disorder (CKD-MBD) have been extensively characterized in the literature, there is a lot of debate nowadays about the so called “unconventional effects” of native vitamin D (25(OH)VitD) supplementation in CKD patients. In this review, highlights of the dimension of the problem of n-hVITD in CKD stages 2–5 ND patients will be presented. In addition, it will focus on the “unconventional effects” of 25(OH)VitD supplementation, the clinical impact of n-hVITD and the most significant interventional studies regarding 25(OH)VitD supplementation in CKD stages 2–5 ND.
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15
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Batool S, Almaghasla D, Motaal AA, Alsayari A, Khaled A, Dirki Z, Attique S. Association of Autoimmune Hypothyroid Disease and Obesity with Vitamin D Deficiency in Female Patients. INT J PHARMACOL 2019. [DOI: 10.3923/ijp.2019.636.641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Heath AK, Hodge AM, Ebeling PR, Eyles DW, Kvaskoff D, Buchanan DD, Giles GG, Williamson EJ, English DR. Circulating 25-Hydroxyvitamin D Concentration and Risk of Breast, Prostate, and Colorectal Cancers: The Melbourne Collaborative Cohort Study. Cancer Epidemiol Biomarkers Prev 2019; 28:900-908. [DOI: 10.1158/1055-9965.epi-18-1155] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/19/2018] [Accepted: 02/26/2019] [Indexed: 11/16/2022] Open
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17
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Ideraabdullah FY, Belenchia AM, Rosenfeld CS, Kullman SW, Knuth M, Mahapatra D, Bereman M, Levin ED, Peterson CA. Maternal vitamin D deficiency and developmental origins of health and disease (DOHaD). J Endocrinol 2019; 241:JOE-18-0541.R2. [PMID: 30909167 PMCID: PMC6717694 DOI: 10.1530/joe-18-0541] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Vitamin D is an essential nutrient that is metabolized in the body to generate an active metabolite (1,25(OH)2D) with hormone-like activity and highly diverse roles in cellular function. Vitamin D deficiency (VDD) is a prevalent but easily preventable nutritional disturbance. Emerging evidence demonstrates the importance of sufficient vitamin D concentrations during fetal life with deficiencies leading to long-term effects into adulthood. Here, we provide a detailed review and perspective of evidence for the role of maternal VDD in offspring long term health, particularly as it relates to Developmental Origins of Health and Disease (DOHaD). We focus on roles in neurobehavioral and cardiometabolic disorders in humans and highlight recent findings from zebrafish and rodent models that probe potential mechanisms linking early life VDD to later life health outcomes. Moreover, we explore evidence implicating epigenetic mechanisms as a mediator of this link. Gaps in our current understanding of how maternal VDD might result in deleterious offspring outcomes later in life are also addressed.
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Affiliation(s)
- Folami Y. Ideraabdullah
- Department of Genetics, University of North Carolina School of Medicine, Chapel Hill, NC 27599
- Department of Nutrition, University of North Carolina School of Medicine, Chapel Hill, NC 27599
- Nutrition Research Institute, University of North Carolina School of Medicine, Chapel Hill, NC 27599
| | - Anthony M. Belenchia
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211
| | - Cheryl S. Rosenfeld
- Department of Biomedical Sciences, University of Missouri, Columbia 65211
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211
| | - Seth W. Kullman
- Toxicology Program, Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC 27695
| | - Megan Knuth
- Toxicology Program, Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695
| | - Debabrata Mahapatra
- Toxicology Program, Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695
| | - Michael Bereman
- Toxicology Program, Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC 27695
| | - Edward D. Levin
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27710
| | - Catherine A. Peterson
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211
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18
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Franca Gois PH, Wolley M, Ranganathan D, Seguro AC. Vitamin D Deficiency in Chronic Kidney Disease: Recent Evidence and Controversies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1773. [PMID: 30126163 PMCID: PMC6121405 DOI: 10.3390/ijerph15081773] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 12/16/2022]
Abstract
Vitamin D (VD) is a pro-hormone essential for life in higher animals. It is present in few types of foods and is produced endogenously in the skin by a photochemical reaction. The final step of VD activation occurs in the kidneys involving a second hydroxylation reaction to generate the biologically active metabolite 1,25(OH)₂-VD. Extrarenal 1α-hydroxylation has also been described to have an important role in autocrine and paracrine signaling. Vitamin D deficiency (VDD) has been in the spotlight as a major public healthcare issue with an estimated prevalence of more than a billion people worldwide. Among individuals with chronic kidney disease (CKD), VDD prevalence has been reported to be as high as 80%. Classically, VD plays a pivotal role in calcium and phosphorus homeostasis. Nevertheless, there is a growing body of evidence supporting the importance of VD in many vital non-skeletal biological processes such as endothelial function, renin-angiotensin-aldosterone system modulation, redox balance and innate and adaptive immunity. In individuals with CKD, VDD has been associated with albuminuria, faster progression of kidney disease and increased all-cause mortality. Recent guidelines support VD supplementation in CKD based on extrapolation from cohorts conducted in the general population. In this review, we discuss new insights on the multifactorial pathophysiology of VDD in CKD as well as how it may negatively modulate different organs and systems. We also critically review the latest evidence and controversies of VD monitoring and supplementation in CKD patients.
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Affiliation(s)
- Pedro Henrique Franca Gois
- Kidney Health Service, Royal Brisbane and Women's Hospital, Herston QLD 4029, Australia.
- Medical School, University of Queensland, Herston QLD 4029, Australia.
| | - Martin Wolley
- Kidney Health Service, Royal Brisbane and Women's Hospital, Herston QLD 4029, Australia.
- Medical School, University of Queensland, Herston QLD 4029, Australia.
| | - Dwarakanathan Ranganathan
- Kidney Health Service, Royal Brisbane and Women's Hospital, Herston QLD 4029, Australia.
- Medical School, University of Queensland, Herston QLD 4029, Australia.
| | - Antonio Carlos Seguro
- Laboratory of Medical Research-LIM12, Nephrology Department, University of São Paulo School of Medicine, São Paulo, CEP 01246-903, Brazil.
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19
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Ganguly A, Tamblyn JA, Finn-Sell S, Chan SY, Westwood M, Gupta J, Kilby MD, Gross SR, Hewison M. Vitamin D, the placenta and early pregnancy: effects on trophoblast function. J Endocrinol 2018; 236:R93-R103. [PMID: 29109081 DOI: 10.1530/joe-17-0491] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 11/06/2017] [Indexed: 01/01/2023]
Abstract
Pregnancy is associated with significant changes in vitamin D metabolism, notably increased maternal serum levels of active vitamin D, 1,25-dihydroxyvitamin (1,25(OH)2D). This appears to be due primarily to increased renal activity of the enzyme 25-hydroxyvitamin D-1α-hydroxylase (CYP27B1) that catalyzes synthesis of 1,25(OH)2D, but CYP27B1 expression is also prominent in both the maternal decidua and fetal trophoblast components of the placenta. The precise function of placental synthesis of 1,25(OH)2D remains unclear, but is likely to involve localized tissue-specific responses with both decidua and trophoblast also expressing the vitamin D receptor (VDR) for 1,25(OH)2D. We have previously described immunomodulatory responses to 1,25(OH)2D by diverse populations of VDR-expressing cells within the decidua. The aim of the current review is to detail the role of vitamin D in pregnancy from a trophoblast perspective, with particular emphasis on the potential role of 1,25(OH)2D as a regulator of trophoblast invasion in early pregnancy. Vitamin D deficiency is common in pregnant women, and a wide range of studies have linked low vitamin D status to adverse events in pregnancy. To date, most of these studies have focused on adverse events later in pregnancy, but the current review will explore the potential impact of vitamin D on early pregnancy, and how this may influence implantation and miscarriage.
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Affiliation(s)
- Ankana Ganguly
- Institute of Metabolism and Systems ResearchThe University of Birmingham, Birmingham, UK
| | - Jennifer A Tamblyn
- Institute of Metabolism and Systems ResearchThe University of Birmingham, Birmingham, UK
- Fetal Medicine CentreBirmingham Women's NHS Foundation Trust, Birmingham, UK
- CEDAMBirmingham Health Partners, The University of Birmingham, Birmingham, UK
| | - Sarah Finn-Sell
- Division of Developmental Biology and MedicineMaternal and Fetal Health Research Centre, School of Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Shiao-Y Chan
- Department of Obstetrics and GynaecologyYong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Melissa Westwood
- Division of Developmental Biology and MedicineMaternal and Fetal Health Research Centre, School of Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Janesh Gupta
- Institute of Metabolism and Systems ResearchThe University of Birmingham, Birmingham, UK
- Fetal Medicine CentreBirmingham Women's NHS Foundation Trust, Birmingham, UK
| | - Mark D Kilby
- Institute of Metabolism and Systems ResearchThe University of Birmingham, Birmingham, UK
- Fetal Medicine CentreBirmingham Women's NHS Foundation Trust, Birmingham, UK
| | - Stephane R Gross
- School of Life and Health SciencesAston University, Birmingham, UK
| | - Martin Hewison
- Institute of Metabolism and Systems ResearchThe University of Birmingham, Birmingham, UK
- CEDAMBirmingham Health Partners, The University of Birmingham, Birmingham, UK
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20
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Sajjadi SF, Mirzaei K, Khorrami-Nezhad L, Maghbooli Z, Keshavarz SA. Vitamin D Status and Resting Metabolic Rate May Modify through Expression of Vitamin D Receptor and Peroxisome Proliferator-Activated Receptor Gamma Coactivator-1 Alpha Gene in Overweight and Obese Adults. ANNALS OF NUTRITION AND METABOLISM 2017; 72:43-49. [PMID: 29258108 DOI: 10.1159/000485662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 11/24/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND Resting metabolic rate (RMR) used to prognosticate and measure the amount of energy required. Vitamin D is known as a new predictor of RMR. The aim of this study is to investigate the relationship between vitamin D effects on RMR in connection with the vitamin D receptor (VDR) and peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) gene expression. METHODS We enrolled 298 overweight and obese adults in this cross-sectional study. Body mass index (BMI), fat mass, fat-free mass, insulin level, visceral fat, and vitamin D status were assessed. RMR was measured by means of indirect calorimetry. The real-time polymerase chain reaction using specific primer pairs for VDR and PGC-1α was performed. RESULTS There were significant differences in terms of fat free mass, fat percentage, insulin levels, RMR/kg body weight, and RMR/BMI, VDR, and PGC-1α among participants were categorized based on the vitamin D status. But after using general linear model for adjusting, all significant results missed their effectiveness except RMR/kg body weight and VDR. Linear regression analysis used to show the mediatory role of VDR and PGC-1α on the RMR/kg body weight and vitamin D status relationship. Our results showed that VDR had a mediatory effect on the relationship between RMR/kg body weight and vitamin D status (β = 0.38, 95% CI -0.48 to 1.60; β = -1.24, 95% CI -5.36 to 1.70). However, PGC-1α did not affect the relationship between RMR/kg body weight and vitamin D status (β = 0.50, 95% CI = -0.02 to 3.42; β = 0.59, 95% CI 0.14-3.90). CONCLUSION Our study showed the mediatory effect of VDR gene expression in the association of 25(OH)2D plasma levels and resting metabolic rate among obese individuals.
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Affiliation(s)
- Seyedeh Forough Sajjadi
- Osteoporosis Research Center, Endocrine Diseases and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Leila Khorrami-Nezhad
- Osteoporosis Research Center, Endocrine Diseases and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zhila Maghbooli
- Osteoporosis Research Center, Endocrine Diseases and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Keshavarz
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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21
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Sánchez-Céspedes R, Fernández-Martínez MD, Raya A, Pineda C, López I, Millán Y. Vitamin D receptor expression in canine mammary gland and relationship with clinicopathological parameters and progesterone/oestrogen receptors. Vet Comp Oncol 2017; 16:E185-E193. [PMID: 29178579 DOI: 10.1111/vco.12371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/10/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023]
Abstract
The vitamin D receptor (VDR) belongs to the nuclear class II receptor family. VDR is a ligand transcription factor and mediates the actions of calcitriol, the active product of vitamin D synthesis. Nowadays, it is known that the biological actions of calcitriol include the capacity to modulate cancer features, such as proliferation and differentiation, apoptosis, angiogenesis, invasion and metastasis. VDR expression has been demonstrated in human breast cancer and vitamin D has emerged as a promising targeted therapy. We analyse the VDR expression in normal and neoplastic canine mammary tissue samples and its relationship with clinicopathological parameters and progesterone/oestrogens receptors (PR/ER). Expression of VDR, Ki67 (to evaluate the proliferation index, PI), PR and ER was assessed in 50 mammary gland tissue samples from 41 female dogs by immunohistochemistry. VDR-positive staining was found in the nuclei of both myoepithelial and luminal epithelial cell layers. VDR expression was higher in normal mammary tissue (37/37 cases, 100%) then followed by benign tumours (6/15 cases, 40%) and malignant tumours (9/34 cases, 26.5%) (P = .001). Female dogs aged ≥10 years had lower VDR expression compared with dogs younger (P = .017). Relationship between VDR and breed, number of tumours, tumour size, histologic subtype, histologic grade of malignancy, PI and PR and ER expression was not observed. Studies with more samples are necessary to further evaluate the possible role of VDR in the biological behaviour of canine mammary tumours, and to corroborate the possibility to use the dog as model for human breast cancer.
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Affiliation(s)
- R Sánchez-Céspedes
- Department of Comparative Pathology, University of Córdoba, Córdoba, Spain
| | | | - A Raya
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - C Pineda
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - I López
- Department of Medicine and Animal Surgery, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - Y Millán
- Department of Comparative Pathology, University of Córdoba, Córdoba, Spain
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22
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Welsh J. Function of the vitamin D endocrine system in mammary gland and breast cancer. Mol Cell Endocrinol 2017; 453:88-95. [PMID: 28579119 PMCID: PMC5538720 DOI: 10.1016/j.mce.2017.04.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 12/24/2022]
Abstract
The nuclear receptor for 1α,25-dihydroxycholecalciferol (1,25D), the active form of vitamin D, has anti-tumor actions in many tissues. The vitamin D receptor (VDR) is expressed in normal mammary gland and in many human breast cancers suggesting it may represent an important tumor suppressor gene in this tissue. When activated by 1,25D, VDR modulates multiple cellular pathways including those related to energy metabolism, terminal differentiation and inflammation. There is compelling pre-clinical evidence that alterations in vitamin D status affect breast cancer development and progression, while clinical and epidemiological data are suggestive but not entirely consistent. The demonstration that breast cells express CYP27B1 (which converts the precursor vitamin D metabolite 25D to the active metabolite 1,25D) and CYP24A1 (which degrades both 25D and 1,25D) provides insight into the difficulties inherent in using dietary vitamin D, sun exposure and/or serum biomarkers of vitamin D status to predict disease outcomes. Emerging evidence suggests that the normally tight balance between CYP27B1 and CYP24A1 becomes deregulated during cancer development, leading to abrogation of the tumor suppressive effects triggered by VDR. Research aimed at understanding the mechanisms that govern uptake, storage, metabolism and actions of vitamin D steroids in normal and neoplastic breast tissue remain an urgent priority.
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Affiliation(s)
- JoEllen Welsh
- University at Albany Cancer Research Center, 1 Discovery Drive, Rensselaer, NY 12144, United States.
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23
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Dimitrov V, White JH. Vitamin D signaling in intestinal innate immunity and homeostasis. Mol Cell Endocrinol 2017; 453:68-78. [PMID: 28412519 DOI: 10.1016/j.mce.2017.04.010] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/10/2017] [Accepted: 04/10/2017] [Indexed: 12/14/2022]
Abstract
The lumen of the gut hosts a plethora of microorganisms that participate in food assimilation, inactivation of harmful particles and in vitamin synthesis. On the other hand, enteric flora, a number of food antigens, and toxins are capable of triggering immune responses causing inflammation, which, when unresolved, may lead to chronic conditions such as inflammatory bowel disease (IBD). It is important, therefore, to contain the gut bacteria within the lumen, control microbial load and composition, as well as ensure adequate innate and adaptive immune responses to pathogenic threats. There is growing evidence that vitamin D signaling has impacts on all these aspects of intestinal physiology, contributing to healthy enteric homeostasis. VD was first discovered as the curative agent for nutritional rickets, and its classical actions are associated with calcium absorption and bone health. However, vitamin D exhibits a number of extra-skeletal effects, particularly in innate immunity. Notably, it stimulates production of pattern recognition receptors, anti-microbial peptides, and cytokines, which are at the forefront of innate immune responses. They play a role in sensing the microbiota, in preventing excessive bacterial overgrowth, and complement the actions of vitamin D signaling in enhancing intestinal barrier function. Vitamin D also favours tolerogenic rather than inflammogenic T cell differentiation and function. Compromised innate immune function and overactive adaptive immunity, as well as defective intestinal barrier function, have been associated with IBD. Importantly, observational and intervention studies support a beneficial role of vitamin D supplementation in patients with Crohn's disease, a form of IBD. This review summarizes the effects of vitamin D signaling on barrier integrity and innate and adaptive immunity in the gut, as well as on microbial load and composition. Collectively, studies to date reveal that vitamin D signaling has widespread effects on gut homeostasis, and provide a mechanistic basis for potential therapeutic benefit of vitamin D supplementation in IBD.
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Affiliation(s)
- Vassil Dimitrov
- Department of Physiology, McGill University, Montreal, Quebec, Canada
| | - John H White
- Department of Physiology, McGill University, Montreal, Quebec, Canada; Department of Medicine, McGill University, Montreal, Quebec, Canada.
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24
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The role of vitamin D in hepatic metastases from colorectal cancer. Clin Transl Oncol 2017; 20:259-273. [PMID: 28801869 DOI: 10.1007/s12094-017-1735-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/30/2017] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) represents a significant health burden worldwide, comprising approximately 10% of annual cancer cases globally. Hepatic metastases are the most common site of CRC metastasis, and are the leading cause of death in CRC patients. There is strong epidemiologic evidence for an inverse association between vitamin D status and risk of CRC; however, the role of vitamin D in the natural history of liver metastases has not yet been investigated. Several researchers have proposed hallmarks of metastases; crucially, metastases can be blocked by interrupting just one rate-limiting step. Vitamin D status has been implicated in each proposed hallmark of metastasis. The aim of this review is to examine the potential role for vitamin D in reducing the development of hepatic metastases from CRC and outline the candidate mechanisms by which vitamin D may mediate these effects. The results of ongoing randomised intervention trials are eagerly awaited to determine whether addressing vitamin D insufficiency in CRC patients could reduce the occurrence of liver metastases, and the consequent morbidity and mortality.
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25
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The relationship between maternal 25-hydroxyvitamin D status in pregnancy and childhood adiposity and allergy: an observational study. Int J Obes (Lond) 2017; 41:1755-1760. [PMID: 28775375 DOI: 10.1038/ijo.2017.182] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 04/11/2017] [Accepted: 05/16/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Vitamin D insufficiency (defined as <75 nmol l-1) is widespread among pregnant women around the world and has been proposed to influence offspring outcomes in childhood and into adult life, including adiposity and allergy. Disorders, including asthma and eczema, are on the rise among children. Our aim was to investigate the relationship between maternal 25-hydroxyvitamin D status in pregnancy and offspring adiposity, asthma and eczema in childhood. SUBJECTS AND METHODS Maternal 25-hydroxyvitamin D concentrations were analysed in serum samples collected at 15 weeks' gestation from 1710 participants of the prospective Screening for Pregnancy Endpoints cohort study. The offspring of 1208 mothers were followed up at age 5-6 years. Data collected included height, weight, percentage body fat (PBF, measured by bioimpedance) and history of asthma and eczema. Multivariable analysis controlled for maternal body mass index (BMI), age and sex of the child and season of serum sampling. RESULTS Complete data were available for 922 mother-child pairs. Each 10 nmol l-1 increase in maternal 25-hydroxyvitamin D concentration at 15 weeks' gestation was associated with a decrease in offspring PBF of 0.2% (95% confidence interval 0.04-0.36%, P=0.01) after adjustment for confounders but was not related to child BMI z-score. Maternal mean (±s.d.) 25-hydroxyvitamin D concentration was similar in children who did and did not have asthma (71.7±26.1 vs 73.3±27.1 nmol l-1, P=0.5), severe asthma (68.6±28.6 vs 73.3±26.8 nmol l-1, P=0.2) and eczema (71.9±27.0 vs 73.2±27.0 nmol l-1, P=0.5). CONCLUSIONS The finding of a relationship between maternal vitamin D status and adiposity in childhood is important, particularly because vitamin D insufficiency in pregnancy is highly prevalent. The association between maternal vitamin D supplementation in pregnancy and adiposity in the offspring merits examination in randomised controlled trials.
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Stenehjem JS, Grimsrud TK, Rees JR, Vos L, Babigumira R, Veierød MB, Robsahm TE. A protocol for prospective studies of 25-hydroxyvitamin D, leptin and body mass index in relation to cutaneous melanoma incidence and survival. BMJ Open 2017; 7:e014829. [PMID: 28637727 PMCID: PMC5623373 DOI: 10.1136/bmjopen-2016-014829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 03/22/2017] [Accepted: 03/31/2017] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION The incidence and mortality rates of cutaneous melanoma (CM) are increasing among fair-skinned populations worldwide. Ultraviolet radiation (UVR) is the principal risk factor for CM, but is also the main source of 25-hydroxyvitamin D (25(OH)D), which has been associated with reduced risk and better prognosis of some cancer types. However, both low and high 25(OH)D levels have been associated with increased risk of CM. Obesity as measured by body mass index (BMI) is associated with risk of several cancers and has also been suggested as a risk factor for CM, and may also be related to insufficient 25(OH)D and/or high leptin levels. Moreover, contracting a CM diagnosis has been associated with increased risk of developing second cancer. We aim to study whether low prediagnostic serum levels of 25(OH)D, high prediagnostic levels of BMI and high serum leptin levels influence CM incidence, Breslow thickness and CM mortality, and risk of second cancer and survival after a CM diagnosis. METHODS AND ANALYSIS Cohort and nested case-control studies will be carried out using the population-based Janus Serum Bank Cohort (archival prediagnostic sera, BMI, smoking and physical activity), with follow-up from 1972 to 2014. Additional data will be received from the Cancer Registry of Norway, the national Cause of Death Registry, Statistics Norway (education and occupation) and exposure matrices of UVR. Time-to-event regression models will be used to analyse the cohort data, while the nested case-control studies will be analysed by conditional logistic regression. A multilevel approach will be applied when incorporating group-level data. ETHICS AND DISSEMINATION The project is approved by the Regional Committee for Medical Research Ethics and is funded by the Norwegian Cancer Society. Results will be published in peer-reviewed journals, at scientific conferences and in the news media.
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Affiliation(s)
| | - Tom K Grimsrud
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | - Judith R Rees
- New Hampshire State Cancer Registry, Lebanon, New Hampshire, USA
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
| | - Linda Vos
- Department of Research, Cancer Registry of Norway, Oslo, Norway
| | | | - Marit B Veierød
- Oslo Center for Biostatistics and Epidemiology, Department of Biostatistics, University of Oslo, Oslo, Norway
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Jean G, Souberbielle JC, Chazot C. Vitamin D in Chronic Kidney Disease and Dialysis Patients. Nutrients 2017; 9:nu9040328. [PMID: 28346348 PMCID: PMC5409667 DOI: 10.3390/nu9040328] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/15/2017] [Accepted: 03/20/2017] [Indexed: 12/17/2022] Open
Abstract
Vitamin D deficiency (<20 ng/mL) and insufficiency (20–29 ng/mL) are common among patients with chronic kidney disease (CKD) or undergoing dialysis. In addition to nutritional and sunlight exposure deficits, factors that affect vitamin D deficiency include race, sex, age, obesity and impaired vitamin D synthesis and metabolism. Serum 1,25(OH)2D levels also decrease progressively because of 25(OH)D deficiency, together with impaired availability of 25(OH)D by renal proximal tubular cells, high fibroblast growth factor (FGF)-23 and decreased functional renal tissue. As in the general population, this condition is associated with increased morbidity and poor outcomes. Together with the progressive decline of serum calcitriol, vitamin D deficiency leads to secondary hyperparathyroidism (SHPT) and its complications, tertiary hyperparathyroidism and hypercalcemia, which require surgical parathyroidectomy or calcimimetics. Kidney Disease Outcomes Quality Initiative (KDOQI) and Kidney Disease Improving Global Outcomes (KDIGO) experts have recognized that vitamin D insufficiency and deficiency should be avoided in CKD and dialysis patients by using supplementation to prevent SHPT. Many vitamin D supplementation regimens using either ergocalciferol or cholecalciferol daily, weekly or monthly have been reported. The benefit of native vitamin D supplementation remains debatable because observational studies suggest that vitamin D receptor activator (VDRA) use is associated with better outcomes and it is more efficient for decreasing the serum parathormone (PTH) levels. Vitamin D has pleiotropic effects on the immune, cardiovascular and neurological systems and on antineoplastic activity. Extra-renal organs possess the enzymatic capacity to convert 25(OH)D to 1,25(OH)2D. Despite many unanswered questions, much data support vitamin D use in renal patients. This article emphasizes the role of native vitamin D replacement during all-phases of CKD together with VDRA when SHPT persists.
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Affiliation(s)
- Guillaume Jean
- NephroCare Tassin Charcot, Sainte Foy les Lyon, 69110, France.
| | - Jean Claude Souberbielle
- Service d'explorations fonctionnelles, Hôpital Necker-Enfants malades, AP-HP, Paris 75015, France.
| | - Charles Chazot
- NephroCare Tassin Charcot, Sainte Foy les Lyon, 69110, France.
- F-CRIN, Investigation Network Initiative-Cardiovascular and Renal Clinical Trialist, Vandoeuvre-lès-Nancy 54500, France.
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Vuica A, Vukojević K, Ferhatović Hamzić L, Jerić M, Puljak L, Grković I, Filipović N. Expression pattern of CYP24 in liver during ageing in long-term diabetes. Acta Histochem 2016; 118:486-95. [PMID: 27173620 DOI: 10.1016/j.acthis.2016.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 05/01/2016] [Accepted: 05/03/2016] [Indexed: 01/09/2023]
Abstract
Association of liver calcitriol (active vitamin D metabolite) catabolism with osteomalacia during prolonged use of certain drugs was reported in several recent studies. To examine whether the increased calcitriol catabolism could be a potential link between ageing/diabetes mellitus (DM) and bone loss, we studied the dynamic of expression of CYP24, the main calcitriol catabolising enzyme in the liver of rats during ageing and a long-term experimental DM1. DM1 model was induced with intraperitoneally injected streptozotocin (STZ) (55mg/kg). Sprague-Dawley rats were sacrificed 6 and 12 months after the DM1 induction. The immunohistochemical analyses of CYP24 and transforming growth factor β 1 (TGF-β1) expression in the liver were performed. We found that ageing and long-term DM1 resulted in a significantly increased expression of CYP24 in hepatocytes, as well as in non-hepatocyte liver cells (Kupffer cells, hepatic stellate cells and sinusoidal endothelial cells). Ageing and long-term DM1 resulted in an increased expression of TGF-β1 as well. Expression of CYP24 coexisted with the expression of TGF-β1 in all types of hepatic cells. We concluded that liver has the capacity for an active vitamin D catabolism in different populations of liver cells, especially in sinusoidal endothelial cells, through an expression of CYP24. That capacity is substantially increased during ageing and long-term diabetes mellitus. Increased liver calcitriol catabolism could be one of the mechanisms of the bone metabolism impairment related to ageing and diabetes.
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Luo W, Johnson CS, Trump DL. Vitamin D Signaling Modulators in Cancer Therapy. VITAMINS AND HORMONES 2016; 100:433-72. [PMID: 26827962 DOI: 10.1016/bs.vh.2015.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The antiproliferative and pro-apoptotic effects of 1α,25-dihydroxycholecalciferol (1,25(OH)2D3, 1,25D3, calcitriol) have been demonstrated in various tumor model systems in vitro and in vivo. However, limited antitumor effects of 1,25D3 have been observed in clinical trials. This may be attributed to a variety of factors including overexpression of the primary 1,25D3 degrading enzyme, CYP24A1, in tumors, which would lead to rapid local inactivation of 1,25D3. An alternative strategy for improving the antitumor activity of 1,25D3 involves the combination with a selective CYP24A1 inhibitor. The validity of this approach is supported by numerous preclinical investigations, which demonstrate that CYP24A1 inhibitors suppress 1,25D3 catabolism in tumor cells and increase the effects of 1,25D3 on gene expression and cell growth. Studies are now required to determine whether selective CYP24A1 inhibitors+1,25D3 can be used safely and effectively in patients. CYP24A1 inhibitors plus 1,25D3 can cause dose-limiting toxicity of vitamin D (hypercalcemia) in some patients. Dexamethasone significantly reduces 1,25D3-mediated hypercalcemia and enhances the antitumor activity of 1,25D3, increases VDR-ligand binding, and increases VDR protein expression. Efforts to dissect the mechanisms responsible for CYP24A1 overexpression and combinational effect of 1,25D3/dexamethasone in tumors are underway. Understanding the cross talk between vitamin D receptor (VDR) and glucocorticoid receptor (GR) signaling axes is of crucial importance to the design of new therapies that include 1,25D3 and dexamethasone. Insights gained from these studies are expected to yield novel strategies to improve the efficacy of 1,25D3 treatment.
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Affiliation(s)
- Wei Luo
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Candace S Johnson
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Donald L Trump
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, New York, USA; Inova Dwight and Martha Schar Cancer Institute, Falls Church, Virginia, USA.
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Vuica A, Ferhatović Hamzić L, Vukojević K, Jerić M, Puljak L, Grković I, Filipović N. Aging and a long-term diabetes mellitus increase expression of 1 α-hydroxylase and vitamin D receptors in the rat liver. Exp Gerontol 2015; 72:167-76. [PMID: 26471398 DOI: 10.1016/j.exger.2015.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 02/06/2023]
Abstract
Diabetes mellitus (DM) is a metabolic disorder associated with serious liver complications. As a metabolic chronic disease, DM is very common in the elderly. Recent studies suggest ameliorating effects of vitamin D on metabolic and oxidative stress in the liver tissue in an experimental model of DM. The aim of this study was to investigate the expression of vitamin D receptors (VDRs) and 1α-hydroxylase, the key enzyme for the production of active vitamin D form (calcitriol) in the liver during long-term diabetes mellitus type 1 (DM1) in aging rats. We performed immunohistochemical analysis of liver expression of 1α-hydroxylase and VDRs during aging in long-term streptozotocin-induced DM1. 1α-Hydroxylase was identified in the monocyte/macrophage system of the liver. In addition to the nuclear expression, we also observed the expression of VDR in membranes of lipid droplets within hepatocytes. Aging and long-term DM1 resulted in significant increases in the number of 1α-hydroxylase immunoreactive cells, as well as the percentage of strongly positive VDR hepatocytes. In conclusion, the liver has the capacity for active vitamin D synthesis in its monocyte/macrophage system that is substantially increased in aging and long-term diabetes mellitus. These conditions are also characterized by significant increases in vitamin D receptor expression in hepatocytes. The present study suggests that VDR signaling system could be a potential target in prevention of liver complications caused by diabetes and aging.
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Affiliation(s)
- Ana Vuica
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Lejla Ferhatović Hamzić
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Katarina Vukojević
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Milka Jerić
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Livia Puljak
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Ivica Grković
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Natalija Filipović
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia.
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[Vitamin D deficiency in childhood: an opportunity for prevention]. BOLETIN MEDICO DEL HOSPITAL INFANTIL DE MEXICO 2015; 72:225-234. [PMID: 29421141 DOI: 10.1016/j.bmhimx.2015.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 01/27/2015] [Indexed: 01/12/2023] Open
Abstract
The prevalence of vitamin D deficiency in the pediatric population has increased in recent years and continues to be underdiagnosed and undertreated. According to data from the "ENSANUT 2006" (National Health and Nutrition Survey), the prevalence of vitamin D deficiency in Mexico was 16% in children aged 2-12 years. Vitamin D plays a critical role in the formation and bone homeostasis and consequently on growth. Its deficiency is clearly associated with diseases such as rickets and osteomalacia, and it has been linked to other diseases such as obesity, metabolic syndrome, diabetes, cancer, respiratory infections and immune system disease. Specific risk groups have been described in the medical literature for vitamin D deficiency in which supplementation may offer a benefit. Currently, there is still controversy in defining the serum levels of proficiency and dose supplementation. In Mexico, the daily suggested intake of vitamin D is 5.6μg (224 IU), which is significantly lower than the recommendations in the U.S. and Europe (i.e., between 400 and 1000 IU/day). An increase in vitamin D deficiency has been reported in recent years. There is no consensus regarding the sufficiency levels of vitamin D. Cut-off values vary from 20 to 30ng/ml. Therefore, the objective of this review was to provide an overview of the problem in the pediatric population and to describe the groups at risk, as well as to analyze the current recommendations for vitamin D supplementation. Vitamin D deficiency was considered rare in Mexico according to the National Institute of Medical Science and Nutrition Salvador Zubirán. Lack of evidence did not help to establish the international recommended daily intake. Currently, vitamin D deficiency must be recognized as a health problem, worthy of attention and action. We suggest that prospective studies are carried out in our country where the relationship between serum vitamin D deficiency and poor bone mineralization will be established.
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The pleiotropic effects of vitamin D in gynaecological and obstetric diseases: an overview on a hot topic. BIOMED RESEARCH INTERNATIONAL 2015; 2015:986281. [PMID: 26000308 PMCID: PMC4426767 DOI: 10.1155/2015/986281] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/17/2015] [Accepted: 01/20/2015] [Indexed: 12/31/2022]
Abstract
The traditionally recognized role of vitamin D consists in the regulation of bone metabolism and calcium-phosphorus homeostasis but recently a lot of in vitro and in vivo studies recognized several “noncalcemic” effects of vitamin D metabolites. Accumulating evidence suggests that the metabolic pathways of this vitamin may play a key role in the developing of gynaecological/obstetric diseases. VDR-mediated signalling pathways and vitamin D levels seem to (deeply) affect the risk of several gynaecological diseases, such as polycystic ovary syndrome (PCOS), endometriosis, and ovarian and even breast cancer. On the other hand, since also the maternal-fetal unit is under the influence of vitamin D, a breakdown in its homeostasis may underlie infertility, preeclampsia, and gestational diabetes mellitus (GDM). According to our literature review, the relationship between vitamin D and gynaecological/obstetric diseases must be replicated in future studies which could clarify the molecular machineries behind their development. We suggest that further investigation should take into account the different serum levels of this vitamin, the several actions which arise from the binding between it and its receptor (taking into account its possible polymorphism), and finally the interplay between vitamin D metabolism and other hormonal and metabolic pathways.
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Prevalence and prognostic implications of vitamin D deficiency in chronic kidney disease. DISEASE MARKERS 2015; 2015:868961. [PMID: 25883412 PMCID: PMC4391696 DOI: 10.1155/2015/868961] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/11/2015] [Indexed: 01/06/2023]
Abstract
Vitamin D is an important nutrient involved in bone mineral metabolism, and vitamin D status is reflected by serum total 25-hydroxyvitamin D (25[OH]D) concentrations. Vitamin D deficiency is highly prevalent in patients with chronic kidney disease (CKD), and nutritional vitamin D supplementation decreases elevated parathyroid hormone concentrations in subgroups of these patients. Furthermore, vitamin D is supposed to have pleiotropic effects on various diseases such as cardiovascular diseases, malignancies, infectious diseases, diabetes, and autoimmune diseases. Indeed, there is cumulative evidence showing the associations of low vitamin D with the development and progression of CKD, cardiovascular complication, and high mortality. Recently, genetic polymorphisms in vitamin D-binding protein have received great attention because they largely affect bioavailable 25(OH)D concentrations. This finding suggests that the serum total 25(OH)D concentrations would not be comparable among different gene polymorphisms and thus may be inappropriate as an index of vitamin D status. This finding may refute the conventional definition of vitamin D status based solely on serum total 25(OH)D concentrations.
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Rossdeutscher L, Li J, Luco AL, Fadhil I, Ochietti B, Camirand A, Huang DC, Reinhardt TA, Muller W, Kremer R. Chemoprevention activity of 25-hydroxyvitamin D in the MMTV-PyMT mouse model of breast cancer. Cancer Prev Res (Phila) 2014; 8:120-8. [PMID: 25468832 DOI: 10.1158/1940-6207.capr-14-0110] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Development of oncologic conditions is often accompanied by inadequate vitamin D status. The chemoprevention ability of this molecule is of high interest for breast cancer, the most common malignancy in women worldwide. Because current effective vitamin D analogues, including the naturally occurring active metabolite 1,25-dihydroxycholecalciferol (1,25(OH)2D), frequently cause hypercalcemia at pharmacologic doses, the development of safer molecules for clinical chemopreventive use is essential. This study examines whether exogenously supplied prohormone 25-hydroxycholecalciferol (25(OH)D) can delay tumor progression in vivo without hypercalcemic effects. A low vitamin D diet (25 IU/kg) in the non-immunodeficient MMTV-PyMT mouse model of metastatic breast cancer revealed a significant acceleration of mammary neoplasia compared with normal diet (1,000 IU/kg). Systemic perfusion of MMTV-PyMT mice with 25(OH)D or 1,25(OH)2D delayed tumor appearance and significantly decreased lung metastasis, and both metabolites reduced Ki-67, cyclin D1, and ErbB2 levels in tumors. Perfusion with 25(OH)D caused a 50% raise in tumor 1,25(OH)2D levels, indicating good tumor penetration and effective activation. Importantly, in contrast with 1,25(OH)2D, perfusion with 25(OH)D did not cause hypercalcemia. In vitro treatment of cultured MMTV-PyMT mammary tumor cells with 25(OH)D inhibited proliferation, confirming local activation of the prohormone in this system. This study provides an in vivo demonstration in a non-immunodeficient model of spontaneous breast cancer that exogenous 25(OH)D delays neoplasia, tumor growth, and metastasis, and that its chemoprevention efficacy is not accompanied by hypercalcemia.
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Affiliation(s)
- Lionel Rossdeutscher
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Jiarong Li
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Aimée-Lee Luco
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Ibtihal Fadhil
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Benoit Ochietti
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Anne Camirand
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Dao Chao Huang
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Timothy A Reinhardt
- United States Dept of Agriculture (ARS), National Animal Disease Center, Ames, Iowa
| | - William Muller
- Goodman Cancer Research Centre, McGill University, Montréal, Quebec, Canada
| | - Richard Kremer
- Department of Medicine, McGill University Health Centre, Montréal, Quebec, Canada.
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Chun RF, Blatter E, Elliott S, Fitz-Gibbon S, Rieger S, Sagasti A, Adams JS, Hewison M. Cloning of a functional 25-hydroxyvitamin D-1α-hydroxylase in zebrafish (Danio rerio). Cell Biochem Funct 2014; 32:675-82. [PMID: 25290078 DOI: 10.1002/cbf.3071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 12/14/2022]
Abstract
Activation of precursor 25-hydroxyvitamin D3 (25D) to hormonal 1,25-dihydroxyvitamin D3 (1,25D) is a pivotal step in vitamin D physiology, catalysed by the enzyme 25-hydroxyvitamin D-1α-hydroxylase (1α-hydroxylase). To establish new models for assessing the physiological importance of the 1α-hydroxylase-25D-axis, we used Danio rerio (zebrafish) to characterize expression and biological activity of the gene for 1α-hydroxylase (cyp27b1). Treatment of day 5 zebrafish larvae with inactive 25D (5-150 nM) or active 1,25D (0.1-10 nM) induced dose responsive expression (15-95-fold) of the vitamin D-target gene cyp24a1 relative to larvae treated with vehicle, suggesting the presence of Cyp27b1 activity. A full-length zebrafish cyp27b1 cDNA was then generated using RACE and RT-PCR methods. Sequencing of the resulting clone revealed an open reading frame encoding a protein of 505 amino acids with 54% identity to human CYP27B1. Transfection of a cyp27b1 expression vector into HKC-8, a human kidney proximal tubular epithelial cell line, enhanced intracrine metabolism of 25D to 1,25D resulting in greater than twofold induction of CYP24A1 mRNA expression and a 25-fold increase in 1,25D production compared to empty vector. These data indicate that we have cloned a functional zebrafish CYP27B1, representing a phylogenetically distant branch from mammals of this key enzyme in vitamin D metabolism. Further analysis of cyp27b1 expression and activity in zebrafish may provide new perspectives on the biological importance of 25D metabolism.
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Affiliation(s)
- Rene F Chun
- Department of Orthopaedic Surgery, UCLA-Orthopaedic Hospital, Los Angeles, CA, 90095, United States
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Hummel D, Aggarwal A, Borka K, Bajna E, Kállay E, Horváth HC. The vitamin D system is deregulated in pancreatic diseases. J Steroid Biochem Mol Biol 2014; 144 Pt B:402-9. [PMID: 25090635 PMCID: PMC4217145 DOI: 10.1016/j.jsbmb.2014.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 07/23/2014] [Accepted: 07/25/2014] [Indexed: 12/19/2022]
Abstract
The vitamin D system is deregulated during development and progression of several cancer types. Data on the expression of the vitamin D system in the diseased pancreas are missing. The aim of this study was to investigate the expression of the vitamin D receptor (VDR), 1,25-dihydroxyvitamin D3 24-hydroxylase (CYP24A1), and the calcium-sensing receptor (CaSR), a vitamin D target gene, in the different regions of the pancreas in patients with chronic pancreatitis (n=6) and pancreatic ductal adenocarcinomas (PDAC) (n=17). We analyzed the expression of these genes at mRNA and protein level with quantitative real-time RT-PCR and immunostaining. mRNA expression of CYP24A1 and VDR was significantly increased in tumors compared with the adjacent non-tumorous tissue (p<0.01), while CaSR mRNA expression decreased. Both the VDR and the CaSR protein were highly expressed in the endocrine compared with the exocrine pancreas. In CP the CYP24A1 expression was highest in the endocrine pancreas, while in PDACs in the transformed ducts. In the PDAC patients CYP24A1 expression in the islets was significantly lower than in CP patients. Our data suggest that during ductal adenocarcinoma development the vitamin D system in the pancreas becomes deregulated on two levels: in the islets CYP24A1 expression decreases weakening the negative feedback regulation of the vitamin D-dependent insulin synthesis/secretion. In the transformed ducts CYP24A1 expression increases, impairing the antiproliferative effect of vitamin D in these cells.
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Affiliation(s)
- Doris Hummel
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Währinger Gürtel 18-20, Leitstelle 3Q, 1090 Vienna, Austria
| | - Abhishek Aggarwal
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Währinger Gürtel 18-20, Leitstelle 3Q, 1090 Vienna, Austria
| | - Katalin Borka
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, 1091 Budapest, Hungary
| | - Erika Bajna
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Währinger Gürtel 18-20, Leitstelle 3Q, 1090 Vienna, Austria
| | - Enikö Kállay
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Währinger Gürtel 18-20, Leitstelle 3Q, 1090 Vienna, Austria.
| | - Henrik Csaba Horváth
- University Clinic of Visceral Surgery and Medicine, Inselspital University Hospital, 3010 Bern, Switzerland
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Mapes B, Chase M, Hong E, Ludvik A, Ceryes K, Huang Y, Kupfer SS. Ex vivo culture of primary human colonic tissue for studying transcriptional responses to 1α,25(OH)2 and 25(OH) vitamin D. Physiol Genomics 2014; 46:302-8. [PMID: 24550213 DOI: 10.1152/physiolgenomics.00194.2013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
1α,25-Dihydroxyvitamin D3 [1α,25(OH)2D3] is a steroid hormone derived from circulating 25(OH) vitamin D [25(OH)D] with chemopreventive effects in colorectal cancer. 1α,25(OH)2D3 acts through transcriptional mechanisms; however, our understanding of vitamin D transcriptional responses in the colon is derived from studies in transformed cancer cell lines which may not represent responses in normal healthy tissue. Here, we describe the optimization of an ex vivo culture model using primary colonic biopsy samples for studying short-term transcriptional response induced by 1α,25(OH)2D3 and 25(OH)D treatment. Colon biopsy samples from healthy subjects were maintained in primary culture and treated in parallel with 100 nM 1α,25(OH)2D3 or 62.5 nM 25(OH)D and vehicle control (ethanol). Viability was assessed using histology and enzymatic assays. Genome-wide transcriptional responses to 1α,25(OH)2D3 were assessed and expression of 25(OH)D targets CYP27B1 and CYP24A1 were measured by real time PCR. We show that ex vivo culture of colonic tissue remains viable for up to 8 h. The largest number of differentially expressed genes in response to 1α,25(OH)2D3 was noted after 6 h (n = 120). As proof of concept, the top upregulated gene was CYP24A1, a well-established vitamin D-responsive gene. With 25(OH)D treatment, mRNA expression of CYP27B1 was significantly increased after 1 h, while expression of CYP24A1 was greatest at 8 h. Ex vivo culture can be used to assess short-term transcriptional responses to 1α,25(OH)2D3 and 25(OH)D in primary tissue from human colon. Future studies will address interindividual differences in transcriptional responses.
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Affiliation(s)
- Brandon Mapes
- Section of Gastroenterology, Department of Medicine, University of Chicago Medical Center, Chicago, Illinois
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Carbone F, Montecucco F. The role of the intraplaque vitamin d system in atherogenesis. SCIENTIFICA 2013; 2013:620504. [PMID: 24459602 PMCID: PMC3888771 DOI: 10.1155/2013/620504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 12/10/2013] [Indexed: 06/03/2023]
Abstract
Vitamin D has been shown to play critical activities in several physiological pathways not involving the calcium/phosphorus homeostasis. The ubiquitous distribution of the vitamin D receptor that is expressed in a variety of human and mouse tissues has strongly supported research on these "nonclassical" activities of vitamin D. On the other hand, the recent discovery of the expression also for vitamin D-related enzymes (such as 25-hydroxyvitamin D-1 α -hydroxylase and the catabolic enzyme 1,25-dihydroxyvitamin D-24-hydroxylase) in several tissues suggested that the vitamin D system is more complex than previously shown and it may act within tissues through autocrine and paracrine pathways. This updated model of vitamin D axis within peripheral tissues has been particularly investigated in atherosclerotic pathophysiology. This review aims at updating the role of the local vitamin D within atherosclerotic plaques, providing an overview of both intracellular mechanisms and cell-to-cell interactions. In addition, clinical findings about the potential causal relationship between vitamin D deficiency and atherogenesis will be analysed and discussed.
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Affiliation(s)
- Federico Carbone
- Department of Internal Medicine, University of Genoa School of Medicine, IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, 6 Viale Benedetto XV, 16132 Genoa, Italy
- Cardiology Division, Foundation for Medical Researches, Department of Internal Medicine, University of Geneva, 64, Avenue de la Roseraie, 1211 Geneva, Switzerland
| | - Fabrizio Montecucco
- Department of Internal Medicine, University of Genoa School of Medicine, IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, 6 Viale Benedetto XV, 16132 Genoa, Italy
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland
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Robsahm TE, Schwartz GG, Tretli S. The Inverse Relationship between 25-Hydroxyvitamin D and Cancer Survival: Discussion of Causation. Cancers (Basel) 2013; 5:1439-55. [PMID: 24202453 PMCID: PMC3875947 DOI: 10.3390/cancers5041439] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 10/22/2013] [Accepted: 10/24/2013] [Indexed: 01/08/2023] Open
Abstract
Cancer mortality rates vary inversely with geographic latitude and solar ultraviolet-B doses. This relationship may be due to an inhibitory role of vitamin D on cancer development. The relationship between vitamin D and cancer appears to be stronger for studies of cancer mortality than incidence. Because cancer mortality reflects both cancer incidence and survival, the difference may be due to effects of vitamin D on cancer survival. Here we review analytic epidemiologic studies investigating the relation between vitamin D, measured by circulating levels of 25-hydroxyvitamin D (25-OHD), and cancer survival. A relationship between low 25-OHD levels and poor survival is shown by most of the reviewed studies. This relationship is likely to be causal when viewed in light of most criteria for assessing causality (temporality, strength, exposure-response, biological plausibility and consistency). A serum level of 25-OHD around 50 nmol/L appears to be a threshold level. Conversely, there are several mechanisms whereby cancer could lower serum levels of 25-OHD. The severity of disease at the time of diagnosis and time of serum sampling are key factors to clarify the temporal aspect of these relationships. Evidence that vitamin D supplementation could retard the disease process or prolong survival time would be key evidence, but is difficult to generate. However, recent clinical trial results in prostate cancer support a role for vitamin D in this regard.
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Affiliation(s)
- Trude E Robsahm
- The Cancer Registry of Norway, Institute of Population-based Cancer Research, Oslo 0304, Norway.
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Luo W, Hershberger PA, Trump DL, Johnson CS. 24-Hydroxylase in cancer: impact on vitamin D-based anticancer therapeutics. J Steroid Biochem Mol Biol 2013; 136:252-7. [PMID: 23059474 PMCID: PMC3686893 DOI: 10.1016/j.jsbmb.2012.09.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 09/30/2012] [Indexed: 12/15/2022]
Abstract
The active vitamin D hormone 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) plays a major role in regulating calcium homeostasis and bone mineralization. 1,25(OH)2D3 also modulates cellular proliferation and differentiation in a variety of cell types. 24-Hydroxylase, encoded by the CYP24A1 gene, is the key enzyme which converts 1,25(OH)2D3 to less active calcitroic acid. Nearly all cell types express 24-hydroxylase, the highest activity being observed in the kidney. There is increasing evidence linking the incidence and prognosis of certain cancers to low serum 25(OH)D3 levels and high expression of vitamin D 24-hydroxylase, supporting the idea that elevated CYP24A1 expression may stimulate degradation of vitamin D metabolites including 25(OH)D3 and 1,25(OH)2D3. The over expression of CYP24A1 in cancer cells may be a factor affecting 1,25(OH)2D3 bioavailability and anti-proliferative activity pre-clinically and clinically. The combination of 1,25(OH)2D3 with CYP24A1 inhibitors enhances 1,25(OH)2D3 mediated signaling and anti-proliferative effects and may be useful in overcoming effects of aberrant CYP24A1 expression. This article is part of a Special Issue entitled 'Vitamin D Workshop'.
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Affiliation(s)
- Wei Luo
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Pamela A. Hershberger
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Donald L. Trump
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Candace S. Johnson
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263
- Corresponding author: Candace S. Johnson, PhD, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263. Tel: 716-845-8300; fax: 716-845-1258.
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Stoll F, Akladios CY, Mathelin C. [Vitamin D and breast cancer: is there a link?]. ACTA ACUST UNITED AC 2013; 41:242-50. [PMID: 23562418 DOI: 10.1016/j.gyobfe.2013.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 02/22/2013] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The aim of this review is to know the relationship between breast cancer and vitamin D, synthesised by skin or brought by food or supplementation. MATERIAL AND METHODS The selected articles were extracted from the Pubmed database between 1998 and 2012. The keywords used were: "25-hydroxyvitamin D", "breast cancer recurrence", "breast cancer risk", "serum levels of vitamin D", "vitamin D intake". A total of 37 articles were selected. RESULTS The sun exposure, via the skin vitamin D synthesis, is associated with a decreased risk of breast cancer. This decrease seems also likely for food contributions and an over 400IU per day vitamin D supplementation. An inverse relationship between plasma 25-hydroxyvitamin D (25-OH-D) level and breast cancer risk has been suggested. An increased 25-OH-D level seems associated with a decreased risk of breast cancer recurrence. CONCLUSION Recommendations concerning a vitamin D supplementation could be established, but should be supported by additional studies.
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Affiliation(s)
- F Stoll
- Pôle de gynécologie-obstétrique, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, avenue Molière, 67200 Strasbourg cedex, France.
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Nano-encapsulation of vitamin D3 active metabolites for application in chemotherapy: formulation study and in vitro evaluation. Pharm Res 2012; 30:1137-46. [PMID: 23225028 DOI: 10.1007/s11095-012-0949-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 11/27/2012] [Indexed: 12/21/2022]
Abstract
PURPOSE Calcitriol (1,25-dihydroxyvitamin D3), the active metabolite of vitamin D3, is a potential anticancer agent but with high risk of hypercalcemia which limits the achievement of effective serum concentrations. Thus, calcitriol targeting delivery by nanoparticles may present a good solution. METHODS Vitamin D3 active metabolites were encapsulated into polymeric nanoparticles and different formulation parameters were tested. The growth inhibitory efficiency of these nanoparticles was carried out in vitro on human breast adenocarinoma cells (MCF-7). RESULTS Using cholecalciferol (the inactive metabolite), different polymer and oil ratios were compared to select nanoparticles presenting high encapsulation efficiency and sustained release profile. Calcidiol/calcitriol loaded nanoparticles had good encapsulation efficiencies (around 90%) associated with sustained releases over 7 days and enhanced stability. Moreover, loaded nanoparticles showed similar growth inhibition to non-encapsulated metabolites of vitamin D3 on day 4 and higher activities on days 7 and 10 after treatment initiation. CONCLUSION The nano-encapsulation of vitamin D3 active metabolites may offer a new and potentially effective strategy for vitamin D3-based chemotherapy overcoming its actual limitations. The targeting delivery of vitamin D3 metabolites should be encouraged.
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Liu JJ, Bertrand KA, Karageorgi S, Giovannucci E, Hankinson SE, Rosner B, Maxwell L, Rodriguez G, De Vivo I. Prospective analysis of vitamin D and endometrial cancer risk. ANNALS OF ONCOLOGY : OFFICIAL JOURNAL OF THE EUROPEAN SOCIETY FOR MEDICAL ONCOLOGY 2012. [PMID: 23136228 DOI: 10.1093/annonc/mds509.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND This is the first prospective cohort analysis on the association between vitamin D and endometrial cancer incorporating time-varying predicted plasma 25-hydroxyvitamin D [25(OH)D]. METHODS The prospective cohort analysis of predicted 25(OH)D and total dietary vitamin D intake used the Cox proportional hazards model, and involved 644 incident endometrial cancer events from 1986 to 2006 in the Nurses' Health Study. Genotyping and unconditional logistic regression were carried out on 572 endometrial cancer cases and their matched controls on 12 single nucleotide polymorphisms (SNPs) in vitamin D-related genes. RESULTS There was no significant association between predicted 25(OH)D and endometrial cancer incidence, with the hazard ratio for the highest (versus the lowest) quintile of predicted 25(OH)D as 1.00 (95% CI 0.73-1.36) (p-trend = 0.33). There was also no significant association involving total dietary vitamin D. No significant associations between any of the vitamin D-related SNPs and endometrial cancer were observed. CONCLUSION Both predicted 25(OH)D and total dietary vitamin D intake were not associated with endometrial cancer incidence. These results suggest that vitamin D may not protect against the development of endometrial cancer. However, the low and narrow vitamin D exposure range in the cohort may limit generalizability of the results.
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Affiliation(s)
- J J Liu
- Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA.
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Liu JJ, Bertrand KA, Karageorgi S, Giovannucci E, Hankinson SE, Rosner B, Maxwell L, Rodriguez G, De Vivo I. Prospective analysis of vitamin D and endometrial cancer risk. Ann Oncol 2012; 24:687-92. [PMID: 23136228 DOI: 10.1093/annonc/mds509] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND This is the first prospective cohort analysis on the association between vitamin D and endometrial cancer incorporating time-varying predicted plasma 25-hydroxyvitamin D [25(OH)D]. METHODS The prospective cohort analysis of predicted 25(OH)D and total dietary vitamin D intake used the Cox proportional hazards model, and involved 644 incident endometrial cancer events from 1986 to 2006 in the Nurses' Health Study. Genotyping and unconditional logistic regression were carried out on 572 endometrial cancer cases and their matched controls on 12 single nucleotide polymorphisms (SNPs) in vitamin D-related genes. RESULTS There was no significant association between predicted 25(OH)D and endometrial cancer incidence, with the hazard ratio for the highest (versus the lowest) quintile of predicted 25(OH)D as 1.00 (95% CI 0.73-1.36) (p-trend = 0.33). There was also no significant association involving total dietary vitamin D. No significant associations between any of the vitamin D-related SNPs and endometrial cancer were observed. CONCLUSION Both predicted 25(OH)D and total dietary vitamin D intake were not associated with endometrial cancer incidence. These results suggest that vitamin D may not protect against the development of endometrial cancer. However, the low and narrow vitamin D exposure range in the cohort may limit generalizability of the results.
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Affiliation(s)
- J J Liu
- Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA.
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Cheung FSG, Lovicu FJ, Reichardt JKV. Current progress in using vitamin D and its analogs for cancer prevention and treatment. Expert Rev Anticancer Ther 2012; 12:811-37. [PMID: 22716497 DOI: 10.1586/era.12.53] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Vitamin D has long been known for its physiological role in mineral homeostasis through its actions on the intestines, kidneys, parathyroid glands and bone. However, recent observations of antiproliferative, prodifferentiating and antiangiogenic effects elicited by the bioactive form of vitamin D (1,25[OH](2)D(3)) in a broad range of cancers is less well understood. Here, we review the increasing epidemiological and experimental evidence that supports the development of 1,25(OH)(2)D(3) and vitamin D analogs as preventative and therapeutic anticancer agents. Furthermore, this review summarizes the preclinical and clinical studies of vitamin D and its analogs over the past decade, indicating the current problems of dose-limiting toxicity from hypercalcemia and large interpatient variability in pharmacokinetics. A better understanding of how genetic variants influence vitamin D status should not only improve cancer risk predictions, but also promote the development of vitamin D analogs with more specific actions to improve therapeutic outcomes.
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Antico A, Tozzoli R, Giavarina D, Tonutti E, Bizzaro N. Hypovitaminosis D as predisposing factor for atrophic type A gastritis: a case-control study and review of the literature on the interaction of Vitamin D with the immune system. Clin Rev Allergy Immunol 2012; 42:355-64. [PMID: 21286859 DOI: 10.1007/s12016-011-8255-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,25-Dihydroxyvitamin D displays immunoregulatory and anti-inflammatory properties, and the cells involved in innate and adaptive immune response express the vitamin D receptor and can both produce and respond to this hormone. This article aims at describing the complex immune regulatory role of vitamin D and depicting whether a correlation exists between atrophic type A gastritis and hypovitaminosis. We studied 62 autoimmune gastritis (AIG) patients and compared them to 54 lymphocytic gastritis patients, 21 Helicobacter pylori gastritis patients and 212 healthy subjects. We also statistically analyzed vitamin D concentration in 36,384 outpatients referred to our clinical laboratories. 25-Hydroxyvitamin D levels, the measurable metabolite used to determine vitamin D status in plasma, were measured by a chemiluminescent method. Average level of 25-OHD in AIG subjects was 9.8 ± 5.6 ng/mL (95% confidence interval (CI) 8.4-11.2), 11.1 ± 8.4 (CI 7.5-14.7) in H. pylori gastritis patients, 22.2 ± 13.5 (CI 18.6-25.8) in nonspecific lymphocytic gastritis patients, 21.3 ± 12.2 (CI 19.7-22.9) in healthy subjects, and 21.8 ± 13.1 (CI 21.7-21.9) in the 36,384 outpatients. Vitamin D levels in AIG patients were significantly lower than in patients with nonspecific gastritis or in the general population, supporting the hypothesis that hypovitaminosis D might be a risk factor for the development of autoimmune diseases. The low vitamin D concentration in H. pylori gastritis patients might act as predisposing factor for a more severe Th1-type aggression to the stomach epithelium.
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Affiliation(s)
- Antonio Antico
- Department of Clinical Pathology, Cittadella General Hospital, Cittadella, Italy
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Obi Y, Ichimaru N, Hamano T, Tomida K, Matsui I, Fujii N, Okumi M, Kaimori JY, Yazawa K, Kokado Y, Tsubakihara Y, Nonomura N, Rakugi H, Takahara S, Isaka Y. Orally active vitamin d for potential chemoprevention of posttransplant malignancy. Cancer Prev Res (Phila) 2012; 5:1229-35. [PMID: 22926340 DOI: 10.1158/1940-6207.capr-12-0218] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Posttransplant malignancy (PTM) is a limiting factor both for patient and allograft survival in kidney transplant recipients (KTRs). We hypothesized that active vitamin D compounds (AVD) could reduce PTM development in KTRs. Ambulatory KTRs in a Japanese prospective cohort were followed from August 2007 to November 2010. The outcome of interest was newly diagnosed PTM. A propensity score (PS) of having received AVDs was estimated using 26 clinically relevant factors. We used the Cox proportional hazards model with stratification by PS tertiles on the assumption that baseline hazard functions differ among tertiles. As sensitivity analyses, we used inverse probability weighting and PS matching. Among 218 participants, the median age was 50 (interquartile range [IQR], 40 to 59) years, 63.3% were male, median time since transplantation was 11.2 (IQR, 5.2 to 17.1) years, and mean estimated GFR was 41.3 (SD, 15.6) mL/min per 1.73 m(2). At baseline, 42.2% had been treated with AVDs mainly for glucocorticoid-induced osteoporosis. AVDs used were calcitriol (58.7%) and alfacalcidol (41.3%). During follow-up, PTM developed in 5.4% of 92 AVD users and 8.7% of 126 nonusers. Poor vitamin D status was common in the participants, but the serum 25-hydroxyvitamin D level was not significantly associated with PTM in Cox regression analysis. After stratifying patients by PS tertiles, we found that AVDs were significantly associated with a lower risk of PTM (HR 0.25 [0.07 to 0.82]). Sensitivity analyses yielded similar results. AVDs are potential chemopreventive agents against PTM in KTRs.
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Affiliation(s)
- Yoshitsugu Obi
- Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Abstract
The most active vitamin D metabolite, 1α,25-dihydroxyvitamin D(3) (1,25(OH)(2)D(3)), is a pleiotropic hormone with wide regulatory actions. Classically, vitamin D deficiency was known to alter calcium and phosphate metabolism and bone biology. In addition, recent epidemiological and experimental studies support the association of vitamin D deficiency with a large variety of human diseases, and particularly with the high risk of colorectal cancer. By regulating the expression of many genes via several mechanisms, 1,25(OH)(2)D(3) induces differentiation, controls the detoxification metabolism and cell phenotype, sensitises cells to apoptosis and inhibits the proliferation of cultured human colon carcinoma cells. Consistently, 1,25(OH)(2)D(3) and several of its analogues decrease intestinal tumourigenesis in animal models. Molecular, genetic and clinical data in humans are scarce but they suggest that vitamin D is protective against colon cancer. Clearly, the available evidence warrants new, well-designed, large-scale trials to clarify the role of vitamin D in the prevention and/or therapy of this important neoplasia.
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Affiliation(s)
- Fábio Pereira
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid, Arturo Duperier 4, 28029 Madrid, Spain
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Putz-Bankuti C, Pilz S, Stojakovic T, Scharnagl H, Pieber TR, Trauner M, Obermayer-Pietsch B, Stauber RE. Association of 25-hydroxyvitamin D levels with liver dysfunction and mortality in chronic liver disease. Liver Int 2012; 32:845-51. [PMID: 22222013 DOI: 10.1111/j.1478-3231.2011.02735.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 12/01/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND Previous studies suggest that chronic liver disease may be related to vitamin D deficiency. It is, however, not known whether 25(OH)D levels are associated with incident hepatic decompensation and mortality in chronic liver failure. AIMS We aimed to evaluate whether 25(OH)D serum levels are associated with Child-Pugh (CP) score, model for end-stage liver disease (MELD) score, occurrence of hepatic decompensation, and survival in patients with cirrhosis. METHODS We enrolled 75 consecutive cirrhotic patients admitted to our outpatient liver clinic (32% females; age: 58 ± 11 years; aetiology alcohol in 61%). At baseline, 25(OH)D was determined and the degree of liver dysfunction was estimated by CP and MELD score. Thereafter patients were followed-up with respect to hepatic decompensation and mortality. RESULTS 25(OH)D levels averaged 16.0 ± 9.2 ng/ml and were inversely correlated with MELD score (r = -0.34, P = 0.003) and CP score (r = -0.21, P = 0.080). Thirty-seven patients developed hepatic decompensation and 24 patients died during a median follow-up of 3.6 years. Age- and gender-adjusted relative risk (with 95% confidence interval) was 6.37 (1.75-23.2; P = 0.005) for hepatic decompensation and 4.31 (1.38-13.5; P = 0.012) for mortality within the first vs the third 25(OH)D tertile but these associations were largely attenuated towards non-significant trends after additional adjustments for CP or MELD score. CONCLUSIONS Our findings show a significant association of 25(OH)D with the degree of liver dysfunction and suggest that low 25(OH)D levels may predict hepatic decompensation and mortality in patients with chronic liver failure.
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Affiliation(s)
- Csilla Putz-Bankuti
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Medical University of Graz,, Graz, Austria
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Abstract
Vitamin D system is a complex pathway that includes precursors, active metabolites, enzymes, and receptors. This complex system actives several molecular pathways and mediates a multitude of functions. In addition to the classical role in calcium and bone homeostasis, vitamin D plays "non-calcemic" effects in host defense, inflammation, immunity, and cancer processes as recognized in vitro and in vivo studies. The aim of this review is to highlight the relationship between vitamin D and cancer, summarizing several mechanisms proposed to explain the potential protective effect of vitamin D against the development and progression of cancer. Vitamin D acts like a transcription factor that influences central mechanisms of tumorigenesis: growth, cell differentiation, and apoptosis. In addition to cellular and molecular studies, epidemiological surveys have shown that sunlight exposure and consequent increased circulating levels of vitamin D are associated with reduced reduced occurrence and a reduced mortality in different histological types of cancer. Another recent field of interest concerns polymorphisms of vitamin D receptor (VDR); in this context, preliminary data suggest that VDR polymorphisms more frequently associated with tumorigenesis are Fok1, Bsm1, Taq1, Apa1, EcoRV, Cdx2; although further studies are needed to clarify their role in the cancer. In this review, the relationship between vitamin D and cancer is discussed.
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Affiliation(s)
- Laura Vuolo
- Department of Molecular and Clinical Endocrinology and Oncology, "Federico II" University of Naples Naples, Italy.
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