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Atila D, Dalgic AD, Krzemińska A, Pietrasik J, Gendaszewska-Darmach E, Bociaga D, Lipinska M, Laoutid F, Passion J, Kumaravel V. Injectable Liposome-Loaded Hydrogel Formulations with Controlled Release of Curcumin and α-Tocopherol for Dental Tissue Engineering. Adv Healthc Mater 2024:e2400966. [PMID: 38847504 DOI: 10.1002/adhm.202400966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/27/2024] [Indexed: 06/19/2024]
Abstract
An injectable hydrogel formulation is developed utilizing low- and high-molecular-weight chitosan (LCH and HCH) incorporated with curcumin and α-tocopherol-loaded liposomes (Lip/Cur+Toc). Cur and Toc releases are delayed within the hydrogels. The injectability of hydrogels is proved via rheological analyses. In vitro studies are conducted using human dental pulp stem cells (hDPSCs) and human gingival fibroblasts (hGFs) to examine the biological performance of the hydrogels toward endodontics and periodontics, respectively. The viability of hDPSCs treated with the hydrogels with Lip/Cur+Toc is the highest till day 14, compared to the neat hydrogels. During odontogenic differentiation tests, alkaline phosphatase (ALP) enzyme activity of hDPSCs is induced in the Cur-containing groups. Biomineralization is enhanced mostly with Lip/Cur+Toc incorporation. The viability of hGFs is the highest in HCH combined with Lip/Cur+Toc while wound healing occurs almost 100% in both (Lip/Cur+Toc@LCH and Lip/Cur+Toc@HCH) after 2 days. Antioxidant activity of Lip/Cur+Toc@LCH on hGFs is significantly the highest among the groups. Antimicrobial tests demonstrate that Lip/Cur+Toc@LCH is more effective against Escherichia coli whereas so is Lip/Cur+Toc@HCH against Staphylococcus aureus. The antimicrobial mechanism of the hydrogels is investigated for the first time through various computational models. LCH and HCH loaded with Lip/Cur+Toc are promising candidates with multi-functional features for endodontics and periodontics.
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Affiliation(s)
- Deniz Atila
- International Centre for Research on Innovative Bio-based Materials (ICRI-BioM) - International Research Agenda, Lodz University of Technology, Lodz, 90-924, Poland
| | - Ali Deniz Dalgic
- Department of Genetics and Bioengineering, Istanbul Bilgi University, Istanbul, 34060, Turkey
| | - Agnieszka Krzemińska
- International Centre for Research on Innovative Bio-based Materials (ICRI-BioM) - International Research Agenda, Lodz University of Technology, Lodz, 90-924, Poland
| | - Joanna Pietrasik
- Faculty of Chemistry, Institute of Polymer and Dye Technology, Lodz University of Technology, Lodz, 90-924, Poland
| | - Edyta Gendaszewska-Darmach
- Institute of Molecular and Industrial Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Lodz, 90-924, Poland
| | - Dorota Bociaga
- Division of Biomedical Engineering and Functional Materials, Institute of Materials Science and Engineering, Lodz University of Technology, Lodz, 90-924, Poland
| | - Magdalena Lipinska
- Faculty of Chemistry, Institute of Polymer and Dye Technology, Lodz University of Technology, Lodz, 90-924, Poland
| | - Fouad Laoutid
- Polymeric and Composite Materials Unit, Materia Nova Research Center, University of Mons Innovation Center, Mons, B-7000, Belgium
| | - Julie Passion
- Polymeric and Composite Materials Unit, Materia Nova Research Center, University of Mons Innovation Center, Mons, B-7000, Belgium
| | - Vignesh Kumaravel
- International Centre for Research on Innovative Bio-based Materials (ICRI-BioM) - International Research Agenda, Lodz University of Technology, Lodz, 90-924, Poland
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Majumdar U, Bose S. Curcumin and Vitamin C dual release from Hydroxyapatite coated Ti6Al4V discs enhances in vitro biological properties. MATERIALS CHEMISTRY AND PHYSICS 2024; 313:128622. [PMID: 38863477 PMCID: PMC11164290 DOI: 10.1016/j.matchemphys.2023.128622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Titanium alloys are widely used as implant materials due to their biocompatibility and superior mechanical properties for high-load-bearing applications. However, one of the major challenges is their inferior bioactivity and osseoconductivity. Hydroxyapatite is widely used as an alternative material for bone implants due to its compositional similarity to natural bone. In this study, hydroxyapatite is coated on Ti6Al4V discs to enhance its bioactivity. The coated discs are drop-casted with curcumin in the lower layer and vitamin C in the upper layer. This study aims to evaluate the effects of this dual drug delivery system on osteoblast cell proliferation, inhibition of osteoclastogenesis, chemo-preventive and infection control properties. The coating strength obtained is 22 ± 2 MPa. The release from the dual delivery system shows a 1.5-fold increase in osteoblast cell viability, a 1.5-fold reduction in osteoclast cell differentiation, a 2-fold decrease in osteosarcoma growth. The release of curcumin demonstrates a 94% antibacterial efficacy, while the release of vitamin C exhibits an efficacy of 98.6% aganist Staphylococcus aureus. This multifunctional system can be used as a potential implant for load-bearing applications.
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Affiliation(s)
- Ujjayan Majumdar
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, 99164-2920, USA
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Blouin S, Khani F, Messmer P, Roschger P, Hartmann MA, van Wijnen AJ, Thaler R, Misof BM. Vitamin C Deficiency Deteriorates Bone Microarchitecture and Mineralization in a Sex-Specific Manner in Adult Mice. J Bone Miner Res 2023; 38:1509-1520. [PMID: 37493605 PMCID: PMC10636228 DOI: 10.1002/jbmr.4889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/30/2023] [Accepted: 07/21/2023] [Indexed: 07/27/2023]
Abstract
Vitamin C (VitC) is essential for bone health, and low VitC serum levels increase the risk for skeletal fractures. If and how VitC affects bone mineralization is unclear. Using micro-computed tomography (μCT), histologic staining, as well as quantitative backscattered electron imaging (qBEI), we assessed the effects of VitC on femoral structure and microarchitecture, bone formation, and bone mineralization density distribution (BMDD) in the VitC incompetent Gulo-/- mouse model and wild-type mice. In particular, VitC-supplemented, 20-week-old mice were compared with age-matched counterparts where dietary VitC intake was excluded from week 15. VitC depletion in Gulo-/- mice severely reduced cortical thickness of the diaphyseal shaft and bone volume around the growth plate (eg, bone volume of the primary spongiosa -43%, p < 0.001). Loss of VitC also diminished the amount of newly formed bone tissue as visualized by histology and calcein labeling of the active mineralization front. BMDD analysis revealed a shift to higher calcium concentrations upon VitC supplementation, including higher average (~10% increase in female VitC deficient mice, p < 0.001) and peak calcium concentrations in the epiphyseal and metaphyseal spongiosa. These findings suggest higher bone tissue age. Importantly, loss of VitC had significantly more pronounced effects in female mice, indicating a higher sensitivity of their skeleton to VitC deficiency. Our results reveal that VitC plays a key role in bone formation rate, which directly affects mineralization. We propose that low VitC levels may contribute to the higher prevalence of bone-degenerative diseases in females and suggest leveraging this vitamin against these conditions. © 2023 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Stéphane Blouin
- Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Med. Dept. Hanusch Hospital, Vienna, Austria
| | - Farzaneh Khani
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
- Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Phaedra Messmer
- Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Med. Dept. Hanusch Hospital, Vienna, Austria
| | - Paul Roschger
- Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Med. Dept. Hanusch Hospital, Vienna, Austria
| | - Markus A Hartmann
- Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Med. Dept. Hanusch Hospital, Vienna, Austria
| | | | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
- Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Barbara M Misof
- Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Med. Dept. Hanusch Hospital, Vienna, Austria
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Kim JH, Kim M, Hwa S, Ko Y, Park JB. Vitamin E Enhances Cell Viability and the Osteogenic Differentiation of Cell Spheroids Made of Gingiva-Derived Stem Cells. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59040736. [PMID: 37109694 PMCID: PMC10143862 DOI: 10.3390/medicina59040736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023]
Abstract
Background and Objectives: Vitamin E is reported to expedite new bone formation in animal models, and this has led to a decrease in the time needed for treatment. In this study, human gingiva-derived stem cell-derived spheroids were examined to determine the effects of vitamin E on cell survival, osteogenic differentiation, and mineralization. Materials and Methods: Human gingiva-derived stem cells were used to create spheroids, which were then cultivated with vitamin E at doses of 0, 0.1, 1, 10, and 100 ng/mL. The morphological examination and the qualitative and quantitative vitality of the cells were assessed. Alizarin Red S staining and alkaline phosphatase activity assays were performed on days 7 and 14 to evaluate the osteogenic differentiation. The expression levels of RUNX2 and COL1A1 were assessed using a real-time polymerase chain reaction. Results: The addition of vitamin E did not appear to alter the spheroid's shape at the measured quantities without altering the diameter. During the culture time, the majority of the cells in the spheroids fluoresced green. Regardless of concentration, there were substantial increases in cell viability in the vitamin E-loaded groups on day 7 (p < 0.05). On day 14, the Alizarin Red S staining was statistically higher in the 1 ng/mL group compared to the unloaded control (p < 0.05). The addition of vitamin E to the culture enhanced the mRNA expression levels of RUNX2, OCN, and COL1A1 based on the real-time polymerase chain reaction data. Conclusions: We draw the conclusion that vitamin E may be used to promote the osteogenic differentiation of stem cell spheroids in light of these data.
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Affiliation(s)
- Jin-Hyeong Kim
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Minji Kim
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Somyeong Hwa
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Dental Implantology, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Youngkyung Ko
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Dental Implantology, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Dental Implantology, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Zhang R, Huang Q, Su G, Wei M, Cui Y, Zhou H, Song W, Di D, Liu J, Wang Q. Association between multiple vitamins and bone mineral density: a cross-sectional and population-based study in the NHANES from 2005 to 2006. BMC Musculoskelet Disord 2023; 24:113. [PMID: 36765290 PMCID: PMC9912521 DOI: 10.1186/s12891-023-06202-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/27/2023] [Indexed: 02/12/2023] Open
Abstract
BACKGROUND Bone mineral density (BMD) alterations in response to multivitamin exposure were rarely studied. Our study assessed the association of coexposure to six types of vitamins (i.e., vitamins B12, B9, C, D, A and E) with BMD measurements in adults in the US. METHODS Data were collected from participants aged ≥ 20 years (n = 2757) in the U.S. National Health and Nutrition Examination Surveys (NHANES) from 2005 to 2006. Multiple linear regression, restricted cubic splines, principal component analysis (PCA) and weighted quantile sum (WQS) regression were performed for statistical analysis. RESULTS The circulating levels of vitamins B12 and C were positively associated with BMDs, and an inverted L-shaped exposure relationship was observed between serum vitamin C and BMDs. PCA identified two principal components: one for 'water-soluble vitamins', including vitamins B12, B9 and C, and one for 'fat-soluble vitamins', including vitamins A, D and E. The former was positively associated with total femur (β = 0.009, 95%CI: 0.004, 0.015) and femoral neck (β = 0.007, 95%CI: 0.002, 0.013) BMDs, and the latter was negatively associated with BMDs with non-statistical significance. The WQS index constructed for the six vitamins was significantly related to total femur (β = 0.010, 95%CI: 0.001, 0.018) and femoral neck (β = 0.008, 95%CI: 0.001, 0.015) BMDs, and vitamins B12 and C weighted the most. The WQS index was inversely related to BMDs with non-statistical significance, and vitamins E and A weighted the most. CONCLUSION Our findings suggested a positive association between water-soluble vitamin coexposure and BMD, and the association was mainly driven by vitamins B12 and C. Negative association between fat-soluble vitamin coexposure and BMD was indicated, mainly driven by vitamins E and A. An inverted L-shaped exposure relationship was found between vitamin C and BMD.
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Affiliation(s)
- Ruyi Zhang
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Qin Huang
- grid.33199.310000 0004 0368 7223Department of Rehabilitation Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Guanhua Su
- grid.33199.310000 0004 0368 7223Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Muhong Wei
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Yuan Cui
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Haolong Zhou
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Wenjing Song
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Dongsheng Di
- grid.33199.310000 0004 0368 7223MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Junan Liu
- grid.33199.310000 0004 0368 7223Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Qi Wang
- MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Cui A, Xiao P, Fan Z, Zeng Y, Wang H, Zhuang Y. Associations between vitamin E status and bone mineral density in children and adolescents aged 8-19 years: Evidence based on NHANES 2005-2006, 2017-2018. PLoS One 2023; 18:e0283127. [PMID: 36928218 PMCID: PMC10019693 DOI: 10.1371/journal.pone.0283127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
INTRODUCTION Bone mineral density (BMD) in adolescence is a crucial determinant in osteoporosis and fragility fractures in older age. Vitamin E is the most abundant lipid-soluble antioxidant present in the blood. However, the association of vitamin E status with BMD in children and adolescents remains unclear. METHODS We first measured the association of vitamin E status (serum α- and γ tocopherol) with BMD in children and adolescents with the National Health and Nutrition Examination Survey (NHANES). Multiple linear regression models were performed to evaluate their relationship after adjusting for a large range of covariates. Stratified analyses and interaction tests were used to explore their effects on different genders, ages, and races/ethnicities. RESULTS 13,606 children and adolescents from NHANES (2005-2006, 2017-2018) were included in our analysis. Compared with the lowest α-tocopherol quartile, individuals in the highest α-tocopherol quartile are likelier to be Non-Hispanic White and have a higher value of poverty income ratio (PIR). They have a lower value of serum phosphorus and lumbar spine BMD. Every 1umol/L increase in serum α- and γ- tocopherol, the lumbar spine BMD decreased by -0.0016 and -0.0068 g/cm2. Compared with the lowest quartile serum α- and γ- tocopherol concentration, individuals in the highest quartile have a -0.0223 and -0.0329 g/cm2 lower mean BMD, respectively. Interaction effects suggest that the negative effect is more prominent among female youth, individuals aged 8-13 years, non-Hispanic whites, Mexican Americans, and non-Hispanic blacks. CONCLUSIONS Our study indicates serum α- and γ-tocopherol are negatively correlated with lumbar BMD. Age, gender, and race may have a modifying effect on this relationship. Our study has an important clinical implication. A higher vitamin E status for children and adolescents could not improve BMD, even decrease BMD. More prospective research with stronger evidence is needed to verify our findings and their underlying mechanisms.
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Affiliation(s)
- Aiyong Cui
- Department of Orthopaedics, Honghui Hospital, Xi’an Jiao Tong University, Xi’an, China
| | - Peilun Xiao
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Zhiqiang Fan
- Department of Orthopaedics, Honghui Hospital, Xi’an Jiao Tong University, Xi’an, China
| | - Yuan Zeng
- Department of Orthopaedics, Honghui Hospital, Xi’an Jiao Tong University, Xi’an, China
| | - Hu Wang
- Department of Orthopaedics, Honghui Hospital, Xi’an Jiao Tong University, Xi’an, China
- * E-mail: (HW); (YZ)
| | - Yan Zhuang
- Department of Orthopaedics, Honghui Hospital, Xi’an Jiao Tong University, Xi’an, China
- * E-mail: (HW); (YZ)
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Domínguez-Hernández VM, Hernández-Flores C, Delgado A, Valdez-Mijares R, Araujo-Monsalvo VM, Hernández-González O. Effect of ascorbic acid and epidermal growth factor in a rat tibia defect. Acta Cir Bras 2023; 38:e381623. [PMID: 37132758 PMCID: PMC10159014 DOI: 10.1590/acb381623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 02/28/2023] [Indexed: 05/04/2023] Open
Abstract
PURPOSE Bone repair aims to restore the anatomical, biomechanical, and functional integrity of the affected structure. Here we study the effects of ascorbic acid (AA) and epidermal growth factor (EGF) applied in a single dose and in combination on the repair of a noncritical bone defect model. METHODS Twenty-four rats were divided into four groups: an intact G-1 control group, and three groups that underwent a noncritical bone defect in the right tibia: G-2 treated with AA, G-3 treated with EGF, and G-4 treated with AA in combination with EGF. After 21 days of treatment, rats were sacrificed, the tibias were dissected and a destructive biomechanical analysis of three-point flexion test was performed in a universal testing machine; the values of stiffness, resistance, maximum energy, and energy at maximum load were statistically compared. RESULTS G-3 and G-4 recovered the biomechanical properties of strength and stiffness of an intact tibia 3 weeks after their application. Not so the energy and energy at maximum load. For G-2, only the stiffness of an intact tibia was recovered. CONCLUSIONS EGF and AA-EGF applied to a noncritical bone defect in the rat tibia favors the recovery of bone resistance and stiffness.
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Affiliation(s)
| | - Cecília Hernández-Flores
- Instituto Nacional de Rehabilitación LGII - Laboratorio de Bioquímica - Ciudad de México, México
| | - Alfonso Delgado
- Universidad Autónoma de Chihuahua - Facultad de Medicina y Ciencias Biomédicas - Departamento de Fisiología - Chihuahua, México
| | - Rene Valdez-Mijares
- Instituto Nacional de Rehabilitación LGII - Laboratorio de Bioquímica - Ciudad de México, México
| | - Victor M Araujo-Monsalvo
- Instituto Nacional de Rehabilitación LGII - Laboratorio de Biomecánica - Ciudad de México, México
| | - Olivia Hernández-González
- Instituto Nacional de Rehabilitación LGII - Laboratorio de Microscopía Electrónica - Ciudad de México, México
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Arnold M, Rajagukguk YV, Gramza-Michałowska A. Functional Food for Elderly High in Antioxidant and Chicken Eggshell Calcium to Reduce the Risk of Osteoporosis-A Narrative Review. Foods 2021; 10:656. [PMID: 33808726 PMCID: PMC8003428 DOI: 10.3390/foods10030656] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/08/2021] [Accepted: 03/15/2021] [Indexed: 02/07/2023] Open
Abstract
The elderly population is increasing globally and is predicted to reach 1.5 billion in 2050. The quality of life of the elderly must be concerned, for example, with developing functional food for the elderly. In this article, the development of functional food to reduce the risk of osteoporosis in the elderly is reviewed. Oxidative stress is one of the factors which accelerates osteoporosis. Various antioxidants, including vitamin C, vitamin E, polyphenols, or lycopene, have been proven by former studies to have antioxidant activity, therefore, could reduce the risk of osteoporosis. Additionally, the application of eggshell powder in various food products has been reported to improve calcium intake, and its usage is environmentally sustainable as this could contribute to reducing food waste. The application of both antioxidants and calcium could be a good combination, but the amount of some antioxidants must be concerned so it would not interfere with the bioavailability of calcium. Therefore, this review aims to explore the functional food for the elderly to reduce the risk of osteoporosis, particularly with antioxidants and calcium from chicken eggshells. The eating preference and dietary pattern of the elderly are also considered to determine the suitable form of functional food for the elderly. The results presented in the study may be the basis for the development of new calcium-enriched food products for the elderly.
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Affiliation(s)
| | | | - Anna Gramza-Michałowska
- Department of Gastronomy Science and Functional Foods, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, 60624 Poznań, Poland; (M.A.); (Y.V.R.)
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Bellissimo MP, Roberts JL, Jones DP, Liu KH, Taibl KR, Uppal K, Weitzmann MN, Pacifici R, Drissi H, Ziegler TR, Alvarez JA. Metabolomic Associations with Serum Bone Turnover Markers. Nutrients 2020; 12:nu12103161. [PMID: 33081124 PMCID: PMC7602719 DOI: 10.3390/nu12103161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 12/21/2022] Open
Abstract
Bone is a dynamic tissue that is in a constant state of remodeling. Bone turnover markers (BTMs), procollagen type I N-terminal propeptide (P1NP) and C-terminal telopeptides of type I collagen (CTX), provide sensitive measures of bone formation and resorption, respectively. This study used ultra-high-resolution metabolomics (HRM) to determine plasma metabolic pathways and targeted metabolites related to the markers of bone resorption and formation in adults. This cross-sectional clinical study included 34 adults (19 females, mean 27.8 years), without reported illnesses, recruited from a US metropolitan area. Serum BTM levels were quantified by an ELISA. Plasma HRM utilized dual-column liquid chromatography and mass spectrometry to identify metabolites and metabolic pathways associated with BTMs. Metabolites significantly associated with P1NP (p < 0.05) were significantly enriched in pathways linked to the TCA cycle, pyruvate metabolism, and metabolism of B vitamins important for energy production (e.g., niacin, thiamin). Other nutrition-related metabolic pathways associated with P1NP were amino acid (proline, arginine, glutamate) and vitamin C metabolism, which are important for collagen formation. Metabolites associated with CTX levels (p < 0.05) were enriched within lipid and fatty acid beta-oxidation metabolic pathways, as well as fat-soluble micronutrient pathways including, vitamin D metabolism, vitamin E metabolism, and bile acid biosynthesis. P1NP and CTX were significantly related to microbiome-related metabolites (p < 0.05). Macronutrient-related pathways including lipid, carbohydrate, and amino acid metabolism, as well as several gut microbiome-derived metabolites were significantly related to BTMs. Future research should compare metabolism BTMs relationships reported here to aging and clinical populations to inform targeted therapeutic interventions.
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Affiliation(s)
- Moriah P. Bellissimo
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
- Emory Center for Clinical and Molecular Nutrition, Emory University, Atlanta, GA 30322, USA;
- Correspondence:
| | - Joseph L. Roberts
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30322, USA; (J.L.R.); (H.D.)
- Atlanta Department of Veterans Affairs Medical Center, Decatur, GA 30033, USA
| | - Dean P. Jones
- Emory Center for Clinical and Molecular Nutrition, Emory University, Atlanta, GA 30322, USA;
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.H.L.); (K.U.)
| | - Ken H. Liu
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.H.L.); (K.U.)
| | - Kaitlin R. Taibl
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
| | - Karan Uppal
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.H.L.); (K.U.)
| | - M. Neale Weitzmann
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
- Atlanta Department of Veterans Affairs Medical Center, Decatur, GA 30033, USA
- Emory Microbiome Research Center, Emory University, Atlanta, GA 30322, USA
| | - Roberto Pacifici
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
- Emory Microbiome Research Center, Emory University, Atlanta, GA 30322, USA
| | - Hicham Drissi
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30322, USA; (J.L.R.); (H.D.)
- Atlanta Department of Veterans Affairs Medical Center, Decatur, GA 30033, USA
| | - Thomas R. Ziegler
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
- Emory Center for Clinical and Molecular Nutrition, Emory University, Atlanta, GA 30322, USA;
- Atlanta Department of Veterans Affairs Medical Center, Decatur, GA 30033, USA
- Emory Microbiome Research Center, Emory University, Atlanta, GA 30322, USA
| | - Jessica A. Alvarez
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; (K.R.T.); (M.N.W.); (R.P.); (T.R.Z.); (J.A.A.)
- Emory Center for Clinical and Molecular Nutrition, Emory University, Atlanta, GA 30322, USA;
- Emory Microbiome Research Center, Emory University, Atlanta, GA 30322, USA
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Sanadi RM, Deshmukh RS. The effect of Vitamin C on melanin pigmentation - A systematic review. J Oral Maxillofac Pathol 2020; 24:374-382. [PMID: 33456250 PMCID: PMC7802860 DOI: 10.4103/jomfp.jomfp_207_20] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/30/2020] [Accepted: 07/04/2020] [Indexed: 11/04/2022] Open
Abstract
Vitamin C, also known as ascorbic acid, is used as a treatment modality in depigmentation of hyperpigmented spots on the skin and gingiva. This systematic review discusses the studies conducted to assess the effect of Vitamin C on melanin pigmentation. The primary objective was to evaluate the effect of Vitamin C on melanin pigmentation. The secondary objective was to analyze the effect of Vitamin C administration on melanin pigmentation. An electronic database search was conducted from the following databases: PubMed, EBSCOhost, ScienceOpen, EMBASE and Google Scholar. Randomized controlled trials, experimental studies, case-control studies and cohort studies published in peer-reviewed journals in English language were included. Case reports, case series, animal model studies, in vitro studies, studies where Vitamin C was used along with other agents and unpublished research were excluded. Out of 22,580 studies, only 7 studies satisfied the selection criteria. Data extraction sheet was prepared, and the studies were analyzed. Out of the 7 studies analyzed, 1 was a randomized controlled trial and 6 were experimental studies. Vitamin C has been used widely as a depigmenting agent in dermatology. However, there are limited studies conducted on the use of Vitamin C for gingival depigmentation.
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Affiliation(s)
- Rizwan M Sanadi
- Department of Periodontics, Dr GD Pol Foundation's YMT Dental College, Kharghar, Sector - 4, Navi Mumbai and PhD Student, Pune, Maharashtra, India
| | - Revati S Deshmukh
- Department of Oral Pathology and Microbiology, Bharati Vidyapeeth Deemed to be University, Dental College and Hospital, Satara Road, Katraj, Dhankawadi, Pune, Maharashtra, India
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Role of Vitamin C in Osteoporosis Development and Treatment-A Literature Review. Nutrients 2020; 12:nu12082394. [PMID: 32785080 PMCID: PMC7469000 DOI: 10.3390/nu12082394] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/02/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis and associated low energy fractures are a significant clinical problem, especially in the elderly population. The occurrence of a hip fracture is associated with significant mortality and a high risk of disability. For this, apart from the treatment of osteoporosis, effective prevention of both the development of the disease and related fractures is extremely important. One aspect of osteoporosis prevention is proper dietary calcium intake and normal vitamin D3 levels. However, there is some evidence for a potential role of vitamin C in osteoporosis and fracture prevention, too. This review aims to summarize the current knowledge about the role of vitamin C in osteoporosis development, prevention and treatment. The PubMed/Medline search on the role of vitamin C in bone metabolism database was performed for articles between 2000 and May 2020. Reports from in vitro and animal studies seem promising. Epidemiological studies also indicate the positive effect of high vitamin C content in the daily diet on bone mineral density. Despite promising observations, there are still few observational and intervention studies and their results do not allow for unequivocal determination of the benefits of high daily intake of vitamin C or its long-term supplementation.
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Effect of Vitamins D and E on the Proliferation, Viability, and Differentiation of Human Dental Pulp Stem Cells: An In Vitro Study. Int J Dent 2020; 2020:8860840. [PMID: 32676112 PMCID: PMC7350167 DOI: 10.1155/2020/8860840] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/29/2022] Open
Abstract
Introduction The aim of the present study was to determine the effects of vitamins D and E on the proliferation, morphology, and differentiation of human dental pulp stem cells (hDPSCs). Methods In this in vitro experimental study, hDPSCs were isolated, characterized, and treated with vitamins D and E, individually and in combination, utilizing different doses and treatment periods. Changes in morphology and cell proliferation were evaluated using light microscopy and the resazurin assay, respectively. Osteoblast differentiation was evaluated with alizarin red S staining and expression of RUNX2, Osterix, and Osteocalcin genes using real-time RT-PCR. Results Compared with untreated cells, the number of cells significantly reduced following treatment with vitamin D (49%), vitamin E (35%), and vitamins D + E (61%) after 144 h. Compared with cell cultures treated with individual vitamins, cells treated with vitamins D + E demonstrated decreased cell confluence, with more extensive and flatter cytoplasm that initiated the formation of a significantly large number of calcified nodules after 7 days of treatment. After 14 days, treatment with vitamins D, E, and D + E increased the transcription of RUNX2, Osterix, and Osteocalcin genes. Conclusions Vitamins D and E induced osteoblastic differentiation of hDPSCs, as evidenced by the decrease in cell proliferation, morphological changes, and the formation of calcified nodules, increasing the expression of differentiation genes. Concurrent treatment with vitamins D + E induces a synergistic effect in differentiation toward an osteoblastic lineage.
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Hill-Mündel K, Schlegl J, Biesalski HK, Ehnert S, Schröter S, Bahrs C, Nohr D, Nüssler AK, Ihle C. Preoperative Ascorbic Acid Levels in Proximal Femur Fracture Patients Have No Postoperative Clinical Impact, While Ascorbic Acid Levels upon Discharge Have a Major Effect on Postoperative Outcome. J Clin Med 2019; 9:jcm9010066. [PMID: 31888071 PMCID: PMC7019571 DOI: 10.3390/jcm9010066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 12/24/2019] [Indexed: 12/17/2022] Open
Abstract
Proximal femur fractures show a high prevalence in elderly patients and are associated with an elevated risk of multimorbidity and early mortality. Recovery is impaired by malnutrition and oxidative stress, which is affected by antioxidants such as ascorbic acid (AA). This study monitored AA levels during hospitalization of patients with a proximal femur to investigate the influence of AA status to the clinical outcome. AA levels of 25 elderly patients with a proximal femur fracture were measured during hospitalization using high performance liquid chromatography. Plasma samples were collected preoperatively, on the first day after surgery, on the third day after surgery and on the day of discharge. Nutritional Risk Screening 2002 (NRS) and Mini Nutritional Assessment (MNA) were assessed to evaluate the nutritional status. In patients with proximal femoral fractures, preoperative AA concentrations were significantly lower compared to elderly patients without an acute fracture. A significant decrease of 33.8% in AA plasma level was measured on the day after surgery with a significant recovery up to the time of discharge. The preoperative AA status did not have any significant effect on clinical outcome. However, inadequate AA levels (<50 µmol/L) upon discharge significantly increased the incidence and the severity of postoperative complications. These results indicate that the AA status upon discharge has a greater impact on clinical outcome than assumed, and therefore, AA supplementation during hospitalization should be considered.
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Affiliation(s)
- Katharina Hill-Mündel
- Institute of Nutritional Science, University of Hohenheim, 70599 Stuttgart, Germany; (K.H.-M.); (H.K.B.); (D.N.)
| | - Johannes Schlegl
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
| | - Hans Konrad Biesalski
- Institute of Nutritional Science, University of Hohenheim, 70599 Stuttgart, Germany; (K.H.-M.); (H.K.B.); (D.N.)
| | - Sabrina Ehnert
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
| | - Steffen Schröter
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
| | - Christian Bahrs
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
| | - Donatus Nohr
- Institute of Nutritional Science, University of Hohenheim, 70599 Stuttgart, Germany; (K.H.-M.); (H.K.B.); (D.N.)
| | - Andreas K. Nüssler
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
| | - Christoph Ihle
- Siegfried Weller Research Institute, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tuebingen, BG Trauma Center Tuebingen, 72076 Tuebingen, Germany; (J.S.); (S.E.); (S.S.); (C.B.); (A.K.N.)
- Correspondence: ; Tel.: +49-7071-606-1065
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Wang J, Liu S, Li J, Zhao S, Yi Z. Roles for miRNAs in osteogenic differentiation of bone marrow mesenchymal stem cells. Stem Cell Res Ther 2019; 10:197. [PMID: 31253175 PMCID: PMC6599379 DOI: 10.1186/s13287-019-1309-7] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs), which were first discovered in bone marrow, are capable of differentiating into osteoblasts, chondrocytes, fat cells, and even myoblasts, and are considered multipotent cells. As a result of their potential for multipotential differentiation, self-renewal, immune regulation, and other effects, BMSCs have become an important source of seed cells for gene therapy, tissue engineering, cell replacement therapy, and regenerative medicine. MicroRNA (miRNA) is a highly conserved type of endogenous non-protein-encoding RNA of about 19-25 nucleotides in length, whose transcription process is independent of other genes. Generally, miRNA plays roles in regulating cell proliferation, differentiation, apoptosis, and development by binding to the 3' untranslated region of target mRNAs, whereby they can degrade or induce translational silencing. Although miRNAs play a regulatory role in various metabolic processes, they are not translated into proteins. Several studies have shown that miRNAs play an important role in the osteogenic differentiation of BMSCs. Herein, we describe in-depth studies of roles for miRNAs during the osteogenic differentiation of BMSCs, as they provide new theoretical and experimental rationales for bone tissue engineering and clinical treatment.
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Affiliation(s)
- Jicheng Wang
- Shaanxi Provincial People's Hospital, 256 Youyi West Road, Beilin, Xi'an, 710068, China.,Xi'an Medical University, Xi'an, 710068, China
| | - Shizhang Liu
- Shaanxi Provincial People's Hospital, 256 Youyi West Road, Beilin, Xi'an, 710068, China
| | - Jingyuan Li
- Shaanxi Provincial People's Hospital, 256 Youyi West Road, Beilin, Xi'an, 710068, China
| | - Song Zhao
- Shaanxi Provincial People's Hospital, 256 Youyi West Road, Beilin, Xi'an, 710068, China.,Xi'an Medical University, Xi'an, 710068, China
| | - Zhi Yi
- Shaanxi Provincial People's Hospital, 256 Youyi West Road, Beilin, Xi'an, 710068, China.
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The Molecular Mechanism of Vitamin E as a Bone-Protecting Agent: A Review on Current Evidence. Int J Mol Sci 2019; 20:ijms20061453. [PMID: 30909398 PMCID: PMC6471965 DOI: 10.3390/ijms20061453] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 01/16/2023] Open
Abstract
Bone remodelling is a tightly-coordinated and lifelong process of replacing old damaged bone with newly-synthesized healthy bone. In the bone remodelling cycle, bone resorption is coupled with bone formation to maintain the bone volume and microarchitecture. This process is a result of communication between bone cells (osteoclasts, osteoblasts, and osteocytes) with paracrine and endocrine regulators, such as cytokines, reactive oxygen species, growth factors, and hormones. The essential signalling pathways responsible for osteoclastic bone resorption and osteoblastic bone formation include the receptor activator of nuclear factor kappa-B (RANK)/receptor activator of nuclear factor kappa-B ligand (RANKL)/osteoprotegerin (OPG), Wnt/β-catenin, and oxidative stress signalling. The imbalance between bone formation and degradation, in favour of resorption, leads to the occurrence of osteoporosis. Intriguingly, vitamin E has been extensively reported for its anti-osteoporotic properties using various male and female animal models. Thus, understanding the underlying cellular and molecular mechanisms contributing to the skeletal action of vitamin E is vital to promote its use as a potential bone-protecting agent. This review aims to summarize the current evidence elucidating the molecular actions of vitamin E in regulating the bone remodelling cycle.
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Falchetti A, Cosso R. The interaction between vitamin C and bone health: a narrative review. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2018. [DOI: 10.1080/23808993.2018.1482211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alberto Falchetti
- Hercolani Center, Bologna, Italy
- EndOsmet, Villa Donatello Private Hospital, Firenze, Italy
- Villa Alba Clinic, Villa Maria Group, Bologna, Italy
| | - Roberta Cosso
- Hercolani Center, Bologna, Italy
- EndOsmet, Villa Donatello Private Hospital, Firenze, Italy
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Development of gelatin/ascorbic acid cryogels for potential use in corneal stromal tissue engineering. Acta Biomater 2018; 65:123-136. [PMID: 29128534 DOI: 10.1016/j.actbio.2017.11.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 10/15/2017] [Accepted: 11/07/2017] [Indexed: 01/25/2023]
Abstract
To offer an ideal hospitable environment for corneal keratocyte growth, the carrier materials can be functionalized with incorporation of signaling molecules to regulate cell biological events. This study reports, for the first time, the development of gelatin/ascorbic acid (AA) cryogels for keratocyte carriers in vitro and in vivo. The cryogel samples were fabricated by blending of gelatin with varying amounts of AA (0-300 mg) and carbodiimide cross-linking via cryogelation technique. Hydrophilic AA content in the carriers was found to significantly affect cross-linking degree and pore dimension of cryogels, thereby dictating their mechanical and biological stability and AA release profile. The cryogel carriers with low-to-moderate AA loadings were well tolerated by rabbit keratocyte cultures and anterior segment eye tissues, demonstrating good ocular biocompatibility. Although higher incorporated AA level contributed to enhanced metabolic activity and biosynthetic capacity of keratocytes grown on cryogel matrices, the presence of excessive amounts of AA molecules could lead to toxic effect and limit cell proliferation and matrix production. The cytoprotective activity against oxidative stress was shown to be strongly dependent on AA release, which further determined cell culture performance and tissue reconstruction efficiency. With the optimum AA content in carrier materials, intrastromally implanted cell/cryogel constructs exhibited better capability to enhance tissue matrix regeneration and transparency maintenance as well as to mitigate corneal damage in an alkali burn-induced animal model. It is concluded that understanding of antioxidant molecule-mediated structure-property-function interrelationships in gelatin/AA cryogels is critical to designing carrier materials for potential use in corneal stromal tissue engineering. STATEMENT OF SIGNIFICANCE Multifunctional cryogel material can offer an ideal hospitable environment for cell-mediated tissue reconstruction. To our knowledge, this is the first report describing the use of gelatin/ascorbic acid (AA) cryogels as keratocyte carriers for corneal stromal tissue engineering. The AA loading during cryogel fabrication is found to have a significant effect on cross-linking degree and pore dimension, mechanical and biological stability, ocular biocompatibility, cell culture performance, and cytoprotective activity, giving comprehensive insight into fine-tuning the structure-property-function interrelationships of keratocyte carrier material. Using an alkali burn-induced animal model, we present evidence that with the optimum AA loading into cryogel materials, intrastromally implanted cell/carrier constructs exhibited better capability to enhance tissue matrix regeneration and transparency maintenance as well as to mitigate corneal damage.
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18
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Sun Y, Liu C, Bo Y, You J, Zhu Y, Duan D, Cui H, Lu Q. Dietary vitamin C intake and the risk of hip fracture: a dose-response meta-analysis. Osteoporos Int 2018; 29:79-87. [PMID: 29101410 DOI: 10.1007/s00198-017-4284-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 10/20/2017] [Indexed: 12/31/2022]
Abstract
UNLABELLED The meta-analysis suggested that dietary vitamin C was statistically inversely associated with the risk of hip fracture (overall OR = 0.73, 95% CI = 0.55-0.97, I 2 = 69.1%) and with the increase of 50 mg/day vitamin C intake, the risk of hip fracture will reduce by 5% (OR = 0.95, 95% CI 0.91-1.00, P = 0.05). INTRODUCTION Previous studies had inconsistent findings regarding the association between vitamin C intake and the risk of hip fracture. Therefore, we conducted a meta-analysis to evaluate the association of dietary vitamin C intake and the risk of hip fracture. METHODS Relevant studies were identified by searching PubMed, Embase, and Web of Science up to December 2016. Additional articles were identified from reviewing the reference lists of relevant articles. The summary relative risks (RRs) or odds ratios (ORs) and 95% confidence intervals (CIs) were estimated by random effects model. Funnel plot and Egger's test were used to test publication bias. RESULTS The total six articles containing 7908 controls and 2899 cases of hip fracture were included in this meta-analysis. By comparing the highest versus the lowest categories of vitamin C intake, we found that dietary vitamin C was statistically correlated with the risk of hip fracture [overall OR = 0.73, 95% CI = 0.55-0.97, I 2 = 69.1%]. A linear dose-response association showed that the increase with vitamin C intake of 50 mg/day statistically reduced by 5% (OR = 0.95, 95% CI 0.91-1.00, P = 0.05) the risk of hip fracture. CONCLUSIONS In conclusion, the results of current meta-analysis strongly support that increasing dietary vitamin C intake can decrease the risk of hip fracture. In order to verify the association of vitamin C intake and hip fracture risk, further well-designed largely randomized controlled trials (RCTs) are needed.
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Affiliation(s)
- Y Sun
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - C Liu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Y Bo
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - J You
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Y Zhu
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - D Duan
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - H Cui
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Q Lu
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou, China.
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Torshabi M, Rezaei Esfahrood Z, Jamshidi M, Mansuri Torshizi A, Sotoudeh S. Efficacy of vitamins E and C for reversing the cytotoxic effects of nicotine and cotinine. Eur J Oral Sci 2017; 125:426-437. [DOI: 10.1111/eos.12375] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Maryam Torshabi
- Department of Dental Biomaterials; School of Dentistry; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Zeinab Rezaei Esfahrood
- Department of Periodontics; School of Dentistry; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Mahshid Jamshidi
- School of Dentistry; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | | | - Samira Sotoudeh
- School of Dentistry; Shahid Beheshti University of Medical Sciences; Tehran Iran
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Cecoltan S, Stancu IC, Drăguşin DM, Serafim A, Lungu A, Ţucureanu C, Caraş I, Tofan VC, Sălăgeanu A, Vasile E, Mallet R, Chappard D, Coman C, Istodorescu M, Iovu H. Nanocomposite particles with improved microstructure for 3D culture systems and bone regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:153. [PMID: 28861646 DOI: 10.1007/s10856-017-5966-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Nano-apatite and gelatin-alginate hydrogel microparticles have been prepared by a one-step synthesis combined with electrostatic bead generation, for the reconstruction of bone defects. Based on the analysis of bone composition, architecture and embryonic intramembranous ossification, a bio-inspired fabrication has been developed. Accordingly, the mineral phase has been in situ synthesized, calcifying the hydrogel matrix while the latter was crosslinked, finally generating microparticles that can assemble into a bone defect to ensure interconnected pores. Although nano-apatite-biopolymer composites have been widely investigated, microstructural optimization to provide improved distribution and stability of the mineral is rarely achieved. The optimization of the developed method progressively resulted in two types of formulations (15P and 7.5P), with 15 and 7.5 (wt%) phosphate content in the initial precursor. The osteolytic potential was investigated using differentiated macrophages. A commercially available calcium phosphate bone graft substitute (Eurocer 400) was incorporated into the hydrogel, and the obtained composites were in vitro tested for comparison. The cytocompatibility of the microparticles was studied with mouse osteoblast-like cell line MC3T3-E1. Results indicated the best in vitro performance have been obtained for the sample loaded with 7.5P. Preliminary evaluation of biocompatibility into a critical size (3 mm) defect in rabbits showed that 7.5P nanocomposite is associated with newly formed bone in the proximity of the microparticles, after 28 days.
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Affiliation(s)
- Sergiu Cecoltan
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Izabela-Cristina Stancu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania.
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania.
| | - Diana Maria Drăguşin
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Andrada Serafim
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Adriana Lungu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Faculty of Medical Engineering, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Cătălin Ţucureanu
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Iuliana Caraş
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Vlad Constantin Tofan
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Aurora Sălăgeanu
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Eugeniu Vasile
- Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
| | - Romain Mallet
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LabCom NextBone, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
| | - Daniel Chappard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LabCom NextBone, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
- SCIAM, Service Commun d'Imagerie et Analyses Microscopiques, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933 ANGERS, Cedex, France
| | - Cristin Coman
- "Cantacuzino" National Institute for Research, Cantacuzino" National Institute for Research, 103 Splaiul Independentei, 050096, Bucharest, Romania
| | - Mircea Istodorescu
- S.C. Medical Ortovit S.R.L., 8 Miron Costin, Sector 1, Bucharest, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, 1-7 Gheorghe Polizu Street, Sector 1, 011061, Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, Bucharest, 050094, Romania
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Torbergsen AC, Watne LO, Wyller TB, Frihagen F, Strømsøe K, Bøhmer T, Mowe M. Micronutrients and the risk of hip fracture: Case–control study. Clin Nutr 2017; 36:438-443. [DOI: 10.1016/j.clnu.2015.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 11/16/2015] [Accepted: 12/16/2015] [Indexed: 11/30/2022]
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22
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Yang TC, Duthie GG, Aucott LS, Macdonald HM. Vitamin E homologues α- and γ-tocopherol are not associated with bone turnover markers or bone mineral density in peri-menopausal and post-menopausal women. Osteoporos Int 2016; 27:2281-2290. [PMID: 27139906 DOI: 10.1007/s00198-015-3470-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 12/17/2015] [Indexed: 12/19/2022]
Abstract
UNLABELLED In a large cohort of older women, we investigated the relationships that different forms of vitamin E may have with bone turnover markers and bone mineral density (BMD). We found a suggestive positive association between serum alpha-tocopherol and BMD at the femoral neck, but no other clinically relevant observations. INTRODUCTION Vitamin E has anti-oxidant and anti-inflammatory properties hypothesized to benefit bone, but limited studies exist regarding its homologues. We examined circulating and dietary α- and γ-tocopherols with bone turnover markers (BTMs) and bone mineral density (BMD), and the role of inflammation in this relationship. METHODS We performed two cross-sectional analyses from two visits (V2, 1997-1999, n = 3883; V3, 2007-2011, n = 2130) of the Aberdeen Prospective Osteoporosis Screening Study. Dietary and supplement intakes by food frequency questionnaire were assessed at both visits. V2 BTMs (urinary free pyridinoline and deoxypyridinoline, serum N-terminal propeptide of type 1 collagen) and V3 serum α- and γ-tocopherols, inflammatory markers (interleukin-6 [IL-6], serum amyloid A [SAA], high-sensitivity C-reactive protein [hs-CRP], E-selectin) and dual X-ray absorptiometry BMD at the femoral neck and lumbar spine were collected. Food sources of tocopherol homologues and diet-serum correlations were determined. The relationships between dietary tocopherols and BTMs (V2), and dietary and serum tocopherols with BMD (V3) were examined by multivariable regression (adjusting for age, cholesterol, inflammatory markers, carotenoids, body mass index, physical activity level, alcohol intake, smoking status and national deprivation category). RESULTS Serum γ-tocopherol was associated with increasing concentrations of hs-CRP, SAA and E-selectin (P-trend all <0.0001), while α-tocopherol was associated with decreasing concentrations of IL-6 and hs-CRP (P-trend all <0.001). Controlling for covariates, serum α-tocopherol was positively associated with BMD at the femoral neck (β = 0.002, P = 0.04) among those not reporting vitamin E supplementation. CONCLUSION We did not find biologically meaningful results between dietary and tocopherol homologues with BTMs or BMD.
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Affiliation(s)
- T C Yang
- Natural Products Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, AB21 9SB, UK.
- School of Medicine and Dentistry, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, UK.
| | - G G Duthie
- Natural Products Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, AB21 9SB, UK
| | - L S Aucott
- School of Medicine and Dentistry, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - H M Macdonald
- School of Medicine and Dentistry, University of Aberdeen, Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, UK
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Muthusami S, Gopalakrishnan V, Stanley JA, Krishnamoorthy S, Ilangovan R, Gopalakrishnan VK, Srinivasan N. Cissus quadrangularis prevented the ovariectomy induced oxidative stress in the femur of adult albino rats. Biomed Pharmacother 2016; 81:416-423. [PMID: 27261621 DOI: 10.1016/j.biopha.2016.04.021] [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: 11/07/2015] [Revised: 04/08/2016] [Accepted: 04/08/2016] [Indexed: 11/25/2022] Open
Abstract
UNLABELLED The increasing evidence suggesting the role of free radicals in bone resorption and bone loss prompted us to explore whether the consumption of antioxidant rich medicinal plant C. quadrangularis modifies antioxidant status in ovariectomized rats. METHODS Twenty four female adult rats, 90days old showing regular estrous cycles were used for the present study. The animals were divided into two groups. The Group-1 rats (n=6) were sham operated and Group-II rats were bilaterally ovariectomized (n=18) and treated with C. quadrangularis for sixty days (100mg/kg body weight and 250mg/kg body weight). After sixty days, the rats were killed, femora were dissected out, minced and homogenized in Tris-HCl buffer (pH 7.4) and the supernatant was collected and used for biochemical assays. RESULTS Ovariectomy registered a decrease (p<0.05) in the activities of SOD, GPx, GST, ALP, collagen content and increased (p<0.05) the activities of TRAP and lipid peroxidation. Simultaneous administration of C. quadrangularis maintained the enzyme activities in ovariectomized rats. CONCLUSION C. quadrangularis, a natural herb may be used to treat the estrogen deficiency/menopause onset and ovariectomy induced oxidative stress.
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Affiliation(s)
- Sridhar Muthusami
- Department of Biochemistry, Karpagam University, Eachanari, Coimbatore, Tamilnadu 641021, India; Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India.
| | - Vasudevan Gopalakrishnan
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India
| | - Jone A Stanley
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India; Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Senthilkumar Krishnamoorthy
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India
| | - Ramachandran Ilangovan
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India
| | | | - Narasimhan Srinivasan
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani campus, Chennai, 600113, India; Faculty of Allied Health Sciences, Chettinad University, Kelambakkam, Chennai 603103, India.
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24
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Hampson G, Edwards S, Sankaralingam A, Harrington DJ, Voong K, Fogelman I, Frost ML. Circulating concentrations of vitamin E isomers: Association with bone turnover and arterial stiffness in post-menopausal women. Bone 2015; 81:407-412. [PMID: 26271527 DOI: 10.1016/j.bone.2015.08.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 08/06/2015] [Accepted: 08/08/2015] [Indexed: 10/23/2022]
Abstract
The effects of vitamin E on cardiovascular and bone health are conflicting with beneficial and detrimental findings reported. To investigate this further, we carried out a cross-sectional study to determine the relationship between circulating concentrations of the 2 vitamin E isomers, α- and γ-tocopherol (TP) with bone turnover and arterial stiffness. Two hundred and seventy eight post-menopausal women with mean age [SD] 60.9 [6.0] years were studied. Fasting serum α-TP and γ-TP, bone turnover markers; procollagen type 1 amino-terminal propeptide (P1NP) and C-terminal telopeptide of type 1 collagen (CTX), parathyroid hormone (PTH), total cholesterol (TC) and triglycerides (TG) were measured. Pulse wave velocity (PWV) and central augmentation index (AI) as markers of arterial stiffness were also determined. A positive correlation was observed between α-TP and γ-TP (r=0.14, p=0.022). A significant negative association between α-TP and P1NP only was seen in multiple linear regression analysis following adjustment for serum TC and TG (p=0.016). In a full multi-linear regression model, following correction for age, years since menopause, smoking habits, alcohol intake, use of calcium supplements, BMI, PTH, serum calcium, and estimated glomerular filtration rate (eGFR), the association between α-TP and P1NP remained significant (p=0.011). We did not observe any significant association between γ-TP or α-TP/γ-TP ratio with P1NP or CTX. P1NP was significantly lower in subjects with α-TP concentrations of >30 μmol/L (α-TP >30 μmol/L; P1NP: 57.5 [20.7], α-TP<30 μmol/L; P1NP: 65.7 [24.9] μg/L, p=0.005). PWV was significantly associated with α-TP/γ-TP ratio (p=0.04) but not with serum α-TP or γ-TP in a full multi-linear regression model adjusting for serum lipids, age, and blood pressure. The data suggest that high serum concentrations of α-TP may have a negative effect on bone formation. The balance of α-TP and γ-TP may be important in maintaining arterial compliance. Longitudinal studies are needed to investigate the impact of the vitamin E isomers on bone and cardiovascular health.
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Affiliation(s)
- G Hampson
- Department of Clinical Chemistry, Viapath, St Thomas' Hospital, London SE1 7 EH, UK; Osteoporosis Unit, King's College London, Division of Imaging Sciences and Biomedical Engineering, Guy's Campus, London SE1 9RT, UK.
| | - S Edwards
- Osteoporosis Unit, King's College London, Division of Imaging Sciences and Biomedical Engineering, Guy's Campus, London SE1 9RT, UK
| | - A Sankaralingam
- Department of Clinical Chemistry, Viapath, St Thomas' Hospital, London SE1 7 EH, UK
| | - D J Harrington
- Nutristasis Laboratory, Viapath, St Thomas' Hospital, London SE1 7EH, UK
| | - K Voong
- Nutristasis Laboratory, Viapath, St Thomas' Hospital, London SE1 7EH, UK
| | - I Fogelman
- Osteoporosis Unit, King's College London, Division of Imaging Sciences and Biomedical Engineering, Guy's Campus, London SE1 9RT, UK
| | - M L Frost
- Osteoporosis Unit, King's College London, Division of Imaging Sciences and Biomedical Engineering, Guy's Campus, London SE1 9RT, UK
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Finck H, Hart AR, Lentjes MAH, Jennings A, Luben RN, Khaw KT, Welch AA. Cross-sectional and prospective associations between dietary and plasma vitamin C, heel bone ultrasound, and fracture risk in men and women in the European Prospective Investigation into Cancer in Norfolk cohort. Am J Clin Nutr 2015; 102:1416-24. [PMID: 26537939 DOI: 10.3945/ajcn.115.111971] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 09/23/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Vitamin C sufficiency may help prevent osteoporosis and fractures by mediating osteoclastogenesis, osteoblastogenesis, and bone collagen synthesis. OBJECTIVE We determined whether dietary intakes and plasma concentrations of vitamin C were associated with a heel ultrasound and hip and spine fracture risks in older men and women. DESIGN Participants were recruited from the European Prospective Investigation into Cancer in Norfolk study with 7-d diet diary estimates of vitamin C intake and plasma concentrations. A random subset (4000 of 25,639 subjects) was available for the cross-sectional (ultrasound) study of broadband ultrasound attenuation (BUA) and velocity of sound (VOS), which were determined during the second health examination. The prospective (fracture) study was a case-cohort sample of all participants with a fracture up to March 2009 and the random subset (n = 5319). ANCOVA-determined associations between quintiles of vitamin C intake and plasma status with adjusted BUA and VOS and adjusted Prentice-weighted Cox proportional HRs were calculated for fracture risk. RESULTS Women were 58% of the population (39-79 y old), and the median follow-up was 12.6 y (range: 0-16 y). Positive associations across all quintiles of vitamin C intake but not plasma status were significant for VOS in men (β = 2.47 m/s, P = 0.008) and BUA in women (β = 0.82 dB/MHz, P = 0.004). Vitamin C intake was not associated with fracture risk, but there was an inverse association with plasma concentrations in men, with quintile 4 having significantly lower risks of hip fractures (HR: 0.35; 95% CI: 0.16, 0.80) and spine fractures (HR: 0.26; 95% CI: 0.10, 0.69) than quintile 1. CONCLUSIONS Higher vitamin C intake was significantly associated with higher heel ultrasound measures in men and women, and higher plasma vitamin C concentrations were significantly associated with reduced fracture risk in men only. Our findings that vitamin C intake and status were inconsistently associated with bone health variables suggest that additional research is warranted.
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Affiliation(s)
| | | | - Marleen A H Lentjes
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratories, Cambridge, United Kingdom
| | - Amy Jennings
- Nutrition, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, United Kingdom; and
| | - Robert N Luben
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratories, Cambridge, United Kingdom
| | - Kay-Tee Khaw
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratories, Cambridge, United Kingdom
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26
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Sangani R, Periyasamy-Thandavan S, Kolhe R, Bhattacharyya MH, Chutkan N, Hunter M, Isales C, Hamrick M, Hill WD, Fulzele S. MicroRNAs-141 and 200a regulate the SVCT2 transporter in bone marrow stromal cells. Mol Cell Endocrinol 2015; 410:19-26. [PMID: 25617715 PMCID: PMC4824062 DOI: 10.1016/j.mce.2015.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/07/2015] [Accepted: 01/07/2015] [Indexed: 12/16/2022]
Abstract
Vitamin C is a micro-nutrient which plays an important role in bone marrow stromal cell (BMSCs) differentiation to osteogenesis. This vitamin is transported into the BMSCs through the sodium dependent vitamin C transporter 2 (SVCT2). We previously reported that knockdown of the SVCT2 transporter decreases osteogenic differentiation. However, our understanding of the post-transcriptional regulatory mechanism of the SVCT2 transporter remains poor. MicroRNAs (miRNAs) are small non-coding RNAs that post-transcriptionally regulate the messenger RNAs of protein-coding genes. In this study, we aimed to investigate the impact of miR-141 and miR-200a on SVCT2 expression. We found that mouse BMSCs expressed miR-141 and miR-200a and repressed SVCT2 expression at the functional level by targeting the 3'-untranslated region of mRNA. We also found that miR-141 and miR-200a decreased osteogenic differentiation. Furthermore, miRNA inhibitors increased SVCT2 and osteogenic gene expression in BMSCs. Taken together, these results indicate that both miRNAs are novel regulators of the SVCT2 transporter and play an important role in the osteogenic differentiation of BMSCs.
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Affiliation(s)
- Rajnikumar Sangani
- Department of Orthopaedic Surgery, Georgia Regents University, Augusta, GA 30912, USA
| | | | - Ravindra Kolhe
- Department of Pathology, Georgia Regents University, Augusta, GA 30912, USA
| | - Maryka H Bhattacharyya
- Department of Orthopaedic Surgery, Georgia Regents University, Augusta, GA 30912, USA; Institute of Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA 30912, USA
| | | | - Monte Hunter
- Department of Orthopaedic Surgery, Georgia Regents University, Augusta, GA 30912, USA
| | - Carlos Isales
- Department of Orthopaedic Surgery, Georgia Regents University, Augusta, GA 30912, USA; Institute of Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA 30912, USA
| | - Mark Hamrick
- Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA 30912, USA; Institute of Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA 30912, USA
| | - William D Hill
- Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA 30912, USA; Institute of Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA 30912, USA; Charlie Norwood VA Medical Center, Augusta, GA 30904, USA
| | - Sadanand Fulzele
- Department of Orthopaedic Surgery, Georgia Regents University, Augusta, GA 30912, USA; Institute of Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA 30912, USA.
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27
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Ochi H, Takeda S. The Two Sides of Vitamin E Supplementation. Gerontology 2014; 61:319-26. [PMID: 25428288 DOI: 10.1159/000366419] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 08/05/2014] [Indexed: 11/19/2022] Open
Abstract
Vitamin E is a lipid-soluble antioxidant that inhibits lipid peroxidation by scavenging reactive oxygen species, and it is thought to protect against the aging process. Indeed, it is one of the most popular supplements in the US. However, recent studies have revealed that vitamin E has dual effects on the aging process. We discovered that α-tocopherol, the major form of vitamin E in the body, stimulates osteoclast fusion and bone resorption as well as induces an osteoporosis-like phenotype in rodents. Clinical intervention trials have also demonstrated that supplementation with vitamin E is neutral or even harmful for preventing age-related diseases in humans. Therefore, the role of vitamin E as an 'anti-ager' has been called into question. This review outlines the present understanding of the role of vitamin E in age-related disease prevention.
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Affiliation(s)
- Hiroki Ochi
- Department of Physiology and Cell Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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28
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Is there a role for vitamin C in preventing osteoporosis and fractures? A review of the potential underlying mechanisms and current epidemiological evidence. Nutr Res Rev 2014; 27:268-83. [PMID: 25412684 DOI: 10.1017/s0954422414000195] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Osteoporosis and related fractures are a major global health issue, but there are few preventative strategies. Previously reported associations between higher intakes of fruits and vegetables and skeletal health have been suggested to be partly attributable to vitamin C. To date, there is some evidence for a potential role of vitamin C in osteoporosis and fracture prevention but an overall consensus of published studies has not yet been drawn. The present review aims to provide a summary of the proposed underlying mechanisms of vitamin C on bone and reviews the current evidence in the literature, examining a potential link between vitamin C intake and status with osteoporosis and fractures. The Bradford Hill criteria were used to assess reported associations. Recent animal studies have provided insights into the involvement of vitamin C in osteoclastogenesis and osteoblastogenesis, and its role as a mediator of bone matrix deposition, affecting both the quantity and quality of bone collagen. Observational studies have provided some evidence for this in the general population, showing positive associations between dietary vitamin C intake and supplements and higher bone mineral density or reduced fracture risk. However, previous intervention studies were not sufficiently well designed to evaluate these associations. Epidemiological data are particularly limited for vitamin C status and for fracture risk and good-quality randomised controlled trials are needed to confirm previous epidemiological findings. The present review also highlights that associations between vitamin C and bone health may be non-linear and further research is needed to ascertain optimal intakes for osteoporosis and fracture prevention.
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29
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Chin KY, Ima-Nirwana S. The effects of α-tocopherol on bone: a double-edged sword? Nutrients 2014; 6:1424-41. [PMID: 24727433 PMCID: PMC4011043 DOI: 10.3390/nu6041424] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/22/2014] [Accepted: 02/28/2014] [Indexed: 12/18/2022] Open
Abstract
Recent studies have found conflicting evidence on the role of α-tocopherol (αTF) on bone health. This nonsystematic review aimed to summarize the current evidence on the effects of αTF on bone health from cell culture, animal, and human studies in order to clarify the role of αTF on bone health. Our review found that αTF exerted beneficial, harmful or null effects on bone formation cells. Animal studies generally showed positive effects of αTF supplementation on bone in various models of osteoporosis. However, high-dose αTF was possibly detrimental to bone in normal animals. Human studies mostly demonstrated a positive relationship between αTF, as assessed using high performance liquid chromatography and/or dietary questionnaire, and bone health, as assessed using bone mineral density and/or fracture incidence. Three possible reasons high dosage of αTF can be detrimental to bone include its interference with Vitamin K function on bone, the blocking of the entry of other Vitamin E isomers beneficial to bone, and the role of αTF as a prooxidant. However, these adverse effects have not been shown in human studies. In conclusion, αTF may have a dual role in bone health, whereby in the appropriate doses it is beneficial but in high doses it may be harmful to bone.
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Affiliation(s)
- Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia.
| | - Soelaiman Ima-Nirwana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia.
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Marycz K, Śmieszek A, Grzesiak J, Donesz-Sikorska A, Krzak-Roś J. Application of bone marrow and adipose-derived mesenchymal stem cells for testing the biocompatibility of metal-based biomaterials functionalized with ascorbic acid. Biomed Mater 2013; 8:065004. [PMID: 24280658 DOI: 10.1088/1748-6041/8/6/065004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, metal-based biomaterials were functionalized with ascorbic acid (LAA). Two types of substrates were used: austenitic steel 316L and titanium Ti6Al4V. Coatings were prepared with the sol-gel method and applied on metal surfaces using the dip-coating technique. Ascorbic acid was delivered with SiO2-coating at concentrations of 0.1 and 0.4 M. The morphology of the surfaces and coatings was determined using scanning electron microscope (SEM), whereas their elemental composition by SEM-EDX. Immobilization of ascorbic acid in the coatings was confirmed with Raman spectroscopy. The biocompatibility of the materials obtained was tested in vitro using both bone marrow- and adipose-derived mesenchymal stem cells (BMMSC and ADMSC, respectively). Proliferation rate and morphology of cells cultured in the presence of designed biomaterials were monitored after 24, 48, 120 and 168 h of propagation. The results obtained indicated that silica coatings doped with 0.4 M LAA had a positive effect on the proliferation rate of investigated cells, and in some cases on the growth pattern of culture.
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Affiliation(s)
- Krzysztof Marycz
- Electron Microscopy Laboratory, University of Environmental and Life Sciences, Kożuchowska 5b St, 50-631 Wroclaw, Poland. Wrocławskie Centrum Badań EIT+, Stablowicka 147 St, 54-066 Wroclaw, Poland
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Pittarella P, Antonioli D, Rizzi M, Laus M, Renò F. Vitamin E acetate addition to poly(d,l)lactic acid modifies its mechanical behavior without affecting biocompatibility. J Appl Polym Sci 2013. [DOI: 10.1002/app.39970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pamela Pittarella
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
| | - Diego Antonioli
- Department of Sciences and Technological Innovation; University of Eastern Piedmont “A. Avogadro,” V. Teresa Michel 11; 15121 Alessandria Italy
| | - Manuela Rizzi
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
| | - Michele Laus
- Department of Sciences and Technological Innovation; University of Eastern Piedmont “A. Avogadro,” V. Teresa Michel 11; 15121 Alessandria Italy
| | - Filippo Renò
- Innovative Research Laboratory for Wound Healing, Health Sciences Department; University of Eastern Piedmont “A. Avogadro,” Via Solaroli 17; 28100 Novara Italy
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32
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Dietary vitamin C is positively associated with heel bone density but not with fracture risk in men and women in the EPIC-Norfolk study. Proc Nutr Soc 2013. [DOI: 10.1017/s0029665113002796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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