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Tomczyk-Warunek A, Turżańska K, Posturzyńska A, Kowal F, Blicharski T, Pano IT, Winiarska-Mieczan A, Nikodem A, Dresler S, Sowa I, Wójciak M, Dobrowolski P. Influence of Various Strontium Formulations (Ranelate, Citrate, and Chloride) on Bone Mineral Density, Morphology, and Microarchitecture: A Comparative Study in an Ovariectomized Female Mouse Model of Osteoporosis. Int J Mol Sci 2024; 25:4075. [PMID: 38612883 PMCID: PMC11012416 DOI: 10.3390/ijms25074075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Osteoporosis stands out as a prevalent skeletal ailment, prompting exploration into potential treatments, including dietary strontium ion supplements. This study assessed the efficacy of supplementation of three strontium forms-strontium citrate (SrC), strontium ranelate (SrR), and strontium chloride (SrCl)-for enhancing bone structure in 50 female SWISS mice, aged seven weeks. In total, 40 mice underwent ovariectomy, while 10 underwent sham ovariectomy. Ovariectomized (OVX) mice were randomly assigned to the following groups: OVX (no supplementation), OVX + SrR, OVX + SrC, and OVX + SrCl, at concentrations equivalent to the molar amount of strontium. After 16 weeks, micro-CT examined trabeculae and cortical bones, and whole-bone strontium content was determined. Results confirm strontium administration increased bone tissue mineral density (TMD) and Sr content, with SrC exhibiting the weakest effect. Femur morphometry showed limited Sr impact, especially in the OVX + SrC group. This research highlights strontium's potential in bone health, emphasizing variations in efficacy among its forms.
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Affiliation(s)
- Agnieszka Tomczyk-Warunek
- Laboratory of Locomotor Systems Research, Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-954 Lublin, Poland;
| | - Karolina Turżańska
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Agnieszka Posturzyńska
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Filip Kowal
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Tomasz Blicharski
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Inés Torné Pano
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Anna Winiarska-Mieczan
- Department of Bromatology and Nutrition Physiology, Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland;
| | - Anna Nikodem
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego, 50-370 Wrocław, Poland;
| | - Sławomir Dresler
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
- Department of Plant Physiology and Biophysics, Institute of Biological Science, Maria Curie-Skłodowska University, 20-033 Lublin, Poland
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Maria Curie-Skłodowska University, 20-033 Lublin, Poland;
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Supplemental mineral ions for bone regeneration and osteoporosis treatment. ENGINEERED REGENERATION 2023. [DOI: 10.1016/j.engreg.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
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SABIR PAYAMSADQ, ABBAS KAMARANA. Effect of strontium ranelate and cerium oxide addition in the diet on egg production and eggshell quality in laying hen. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2023. [DOI: 10.56093/ijans.v93i1.128219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Minerals are used widely as feed additives in the diets of poultry to enhance bone and egg quality and productivity. Therefore, the current study aimed to evaluate the impact of strontium ranelate and cerium oxide addition in the diet on egg production and eggshell quality in laying hens. In this experiment, a total of 240 laying hens at the age of 44 weeks old, were divided into six treatments, with four replicates per treatment (10 hens per replicate). The hens were fed a standard diet for five weeks as an introductory period of preparation. The design of the dietary treatments was formulated as: control (T1) basal diet, Strontium ranelate (SrR) 400 and 800 mg/kg in basal diet (T2 and T3), Cerium oxide (CeO) 250 and 500 mg/kg in basal diet (T4 and T5) and their combination 400 mg/kg of Strontium ranelate + 250 mg/kg of Cerium oxide (T6) in the basal diet. Laying hen’s performance and, egg quality (eggshell strength, eggshell thickness, eggshell percentage, minerals in eggshell, yolk index and Haugh unit), were analyzed. The results showed that the addition of SrR and CeO did not affect performance, yolk index, Haugh unit, ratio of Ca, P, and Ce in the eggshell. However, supplementing 800 mg/kg SrR significantly increased eggshell strength, thickness, percentage, Sr in the eggshell compared to the control, while supplementing 250 or 500 mg/kg CeO significantly increased eggshell strength and thickness. The combination of SrR and CeO significantly increased eggshell strength compared to the control group. In conclusion, supplementing SrR (800 mg/kg) and CeO significantly improved the quality of the eggshell.
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Lese I, Tsai C, Matter M, Wüthrich T, Scheer HS, Taddeo A, Constantinescu MA, Herrmann IK, Olariu R. Mixed Metal Oxide Nanoparticle Formulations for the Treatment of Seroma. ACS Biomater Sci Eng 2021; 7:2676-2686. [PMID: 33890779 DOI: 10.1021/acsbiomaterials.1c00283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seroma formation is a well-recognized postoperative complication for many plastic and general surgical procedures. Although various tissue adhesives and substances have been used in an effort to treat seroma formation, no therapies have been established clinically. Recently, the nano-bridging phenomenon has been introduced as a promising approach to achieve tissue adhesion and strong closure of deep skin wounds in rats. The present study seeks to assess the potential of nano-bridging beyond skin wounds in a rat model of seroma. Seromas were induced in 20 Lewis rats through bilateral axillary lymphadenectomy, excision of the latissimus dorsi and cutaneous maximus muscles, and disruption of dermal lymphatics. On postoperative day (POD) 7, the seroma was aspirated on both sides. A bioactive nanoparticle (NP) suspension based on zinc-doped strontium-substituted bioglass/ceria nanoparticles (NP group) or fibrin glue (fibrin group) was injected into the right seroma cavity, while the left side was left untreated. On POD 14, the NP group showed complete remission (no seromas at all), while the fibrin group recorded a reduction of only 63% in the seroma fluid volume. The NPs exerted local anti-inflammatory and neo-angiogenic effects, without any detectable systemic changes. Moreover, the ceria levels recorded in the organs did not surpass the background level, indicating that the nanoparticles stayed at the site of application. This study is a promising first example demonstrating the ability of inorganic nanoparticle formulations to reduce seroma formation in a rat model, without any detectable systemic adverse effects. These results emphasize the potential of nanotechnological solutions in the therapeutic management of seroma in the clinical setting.
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Affiliation(s)
- Ioana Lese
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Freiburgstrasse 4, 3010 Bern, Switzerland
| | - Catherine Tsai
- Department for Biomedical Research, University of Bern, Murtenstrasse 50, 3008 Bern, Switzerland
| | - Martin Matter
- Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.,Nanoparticle Systems Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Tsering Wüthrich
- Department for Biomedical Research, University of Bern, Murtenstrasse 50, 3008 Bern, Switzerland
| | - Helene Sophie Scheer
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Freiburgstrasse 4, 3010 Bern, Switzerland
| | - Adriano Taddeo
- Department for Biomedical Research, University of Bern, Murtenstrasse 50, 3008 Bern, Switzerland
| | - Mihai Adrian Constantinescu
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Freiburgstrasse 4, 3010 Bern, Switzerland
| | - Inge Katrin Herrmann
- Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.,Nanoparticle Systems Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Radu Olariu
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Freiburgstrasse 4, 3010 Bern, Switzerland
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Effect of Diabetes on Rotary Instrumentation of Dentin. J Endod 2021; 47:1301-1307. [DOI: 10.1016/j.joen.2021.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/16/2021] [Accepted: 03/31/2021] [Indexed: 12/18/2022]
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Fernández-Villa D, Asensio G, Silva M, Ramírez-Jiménez RA, Saldaña L, Vilaboa N, Leite-Oliveira A, San Román J, Vázquez-Lasa B, Rojo L. Vitamin B9 derivatives as carriers of bioactive cations for musculoskeletal regeneration applications: Synthesis, characterization and biological evaluation. Eur J Med Chem 2021; 212:113152. [PMID: 33453601 DOI: 10.1016/j.ejmech.2021.113152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 01/06/2023]
Abstract
The development of new drugs for musculoskeletal regeneration purposes has attracted much attention in the last decades. In this work, we present three novel vitamin B9 (folic acid)-derivatives bearing divalent cations (ZnFO, MgFO and MnFO), providing their synthesis mechanism and physicochemical characterization. In addition, a strong emphasis has been placed on evaluating their biological properties (along with our previously reported SrFO) using human mesenchymal stem cells (hMSC). In all the cases, pure folate derivatives (MFOs) with a bidentate coordination mode between the metal and the folate anion, and a 1:1 stoichiometry, were obtained in high yields. A non-cytotoxic dose of all the MFOs (50 μg/mL) was demonstrated to modulate by their own the mRNA profiles towards osteogenic-like or fibrocartilaginous-like phenotypes in basal conditions. Moreover, ZnFO increased the alkaline phosphatase activity in basal conditions, while both ZnFO and MnFO increased the matrix mineralization degree in osteoinductive conditions. Thus, we have demonstrated the bioactivity of these novel compounds and the suitability to further studied them in vivo for musculoskeletal regeneration applications.
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Affiliation(s)
- Daniel Fernández-Villa
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain
| | - Gerardo Asensio
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain
| | - Manuel Silva
- Universidade Católica Portuguesa - Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, 4169-005, Porto, Portugal
| | - Rosa Ana Ramírez-Jiménez
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain
| | - Laura Saldaña
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, 28029, Madrid, Spain
| | - Nuria Vilaboa
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, 28029, Madrid, Spain
| | - Ana Leite-Oliveira
- Universidade Católica Portuguesa - Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, 4169-005, Porto, Portugal
| | - Julio San Román
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain
| | - Blanca Vázquez-Lasa
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain
| | - Luis Rojo
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), 28006, Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029, Madrid, Spain.
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Matter MT, Probst S, Läuchli S, Herrmann IK. Uniting Drug and Delivery: Metal Oxide Hybrid Nanotherapeutics for Skin Wound Care. Pharmaceutics 2020; 12:E780. [PMID: 32824470 PMCID: PMC7465174 DOI: 10.3390/pharmaceutics12080780] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023] Open
Abstract
Wound care and soft tissue repair have been a major human concern for millennia. Despite considerable advancements in standards of living and medical abilities, difficult-to-heal wounds remain a major burden for patients, clinicians and the healthcare system alike. Due to an aging population, the rise in chronic diseases such as vascular disease and diabetes, and the increased incidence of antibiotic resistance, the problem is set to worsen. The global wound care market is constantly evolving and expanding, and has yielded a plethora of potential solutions to treat poorly healing wounds. In ancient times, before such a market existed, metals and their ions were frequently used in wound care. In combination with plant extracts, they were used to accelerate the healing of burns, cuts and combat wounds. With the rise of organic chemistry and small molecule drugs and ointments, researchers lost their interest in inorganic materials. Only recently, the advent of nano-engineering has given us a toolbox to develop inorganic materials on a length-scale that is relevant to wound healing processes. The robustness of synthesis, as well as the stability and versatility of inorganic nanotherapeutics gives them potential advantages over small molecule drugs. Both bottom-up and top-down approaches have yielded functional inorganic nanomaterials, some of which unite the wound healing properties of two or more materials. Furthermore, these nanomaterials do not only serve as the active agent, but also as the delivery vehicle, and sometimes as a scaffold. This review article provides an overview of inorganic hybrid nanotherapeutics with promising properties for the wound care field. These therapeutics include combinations of different metals, metal oxides and metal ions. Their production, mechanism of action and applicability will be discussed in comparison to conventional wound healing products.
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Affiliation(s)
- Martin T. Matter
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland;
- Laboratory for Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Sebastian Probst
- School of Health Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland, Avenue de Champel 47, 1206 Geneva, Switzerland;
| | - Severin Läuchli
- Department of Dermatology, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland;
| | - Inge K. Herrmann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland;
- Laboratory for Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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Bello A, Dersjant-Li Y, Korver DR. Effects of dietary calcium and available phosphorus levels and phytase supplementation on performance, bone mineral density, and serum biochemical bone markers in aged white egg-laying hens. Poult Sci 2020; 99:5792-5801. [PMID: 33142497 PMCID: PMC7647793 DOI: 10.1016/j.psj.2020.06.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/13/2020] [Accepted: 06/19/2020] [Indexed: 11/01/2022] Open
Abstract
Exogenous phytase supplementation increases P and Ca availability to allow for the dietary reductions without negative consequences on productivity or skeletal health. Effects of a Buttiauxella sp. phytase (BSP) supplemented in available P (avP)-reduced and Ca-reduced diets on performance, BW, eggshell quality, serum biochemical bone markers, and bone densitometry were evaluated in egg-laying hens from 68 to 78 wk of age. One hundred hens were fed 1 of 5 diets (n = 20/treatment), including a positive control (PC) with 0.35% avP and 3.5% Ca, and the PC moderately reduced in avP and Ca levels by 0.187 and 0.159% of the diet (by 53 and 4.5%), respectively, (NC1) or severely reduced by 0.231 and 0.275% of the diet (by 66 and 7.9%), respectively, (NC2). Other diets were the NC1 or NC2 supplemented with BSP at 600 FTU/kg (NC1 + BSP or NC2 + BSP, respectively). Egg production and feed conversion ratio were maintained by NC1 but were 11.9% lower and 12.3% higher, respectively, with the NC2 than the PC, which was alleviated by supplemental BSP. Diet effects on FI and eggshell quality followed a similar pattern. Body weight was 2.9% lower for NC1, and 6.1% for NC2 than the PC; BSP alleviated the decreased BW. Serum pyridinoline (bone resorption marker) was 20 to 27% higher in NC2 hens than in the other groups, with no effects on other bone markers. Total and trabecular space bone mineral density in the proximal metaphysis were 8.4 and 15.2% lower for NC1, respectively, and 12.1 and 26.7% lower for NC2, respectively, than PC. Supplemental BSP completely alleviated the decreased bone densitometry measures in NC1, but only partially in NC2. The NC1 hens maintained performance but had decreased BW and bone quality; phytase supplementation restored productivity, BW, and bone quality. The Ca and avP deficiencies in the NC2 hens relative to other groups were partially alleviated by the 600 FTU/kg BSP.
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Affiliation(s)
- A Bello
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Y Dersjant-Li
- DuPont Animal Nutrition, Nutrition & Biosciences, CN Leiden 2333, Netherlands
| | - D R Korver
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
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Adhikari R, White D, House JD, Kim WK. Effects of additional dosage of vitamin D 3, vitamin D 2, and 25-hydroxyvitamin D 3 on calcium and phosphorus utilization, egg quality and bone mineralization in laying hens. Poult Sci 2019; 99:364-373. [PMID: 32416821 PMCID: PMC7587905 DOI: 10.3382/ps/pez502] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 09/24/2019] [Indexed: 12/26/2022] Open
Abstract
Vitamin D is essential for the metabolism of calcium (Ca) and phosphorus (P) in birds. The objective of the study was to evaluate the effect of different isoforms of dietary vitamin D on Ca and P utilization, egg quality, and bone mineralization of laying hens. A total of 42 Lohmann white laying hens at 57 wk of age were randomly assigned to 7 dietary treatments for 6 wk. Dietary treatments were: 3,000 IU/kg Vit D3 as control, and control with additional 3,000 IU/kg 25-hydroxyvitamin D3 (T1), 9,000 IU/kg 25-hydroxyvitamin D3 (T2), 3,000 IU/kg vitamin D3 (T3), 9,000 IU/kg vitamin D3 (T4), 3,000 IU/kg of vitamin D2 (T5), or 9,000 IU/kg of vitamin D2 (T6). Egg production and egg quality were measured weekly. Fecal samples were collected at weeks 2 and 6 to measure Ca and P utilization. After 6 wk, the left tibia and femurs were collected to measure bone mineral density (BMD) and bone mineral content (BMC). A 1-way ANOVA with Tukey HSD means separation test was used for statistical analysis. There were no significant differences in egg production, egg quality, BMD, or BMC of tibia and femurs among the treatments (P > 0.05). T6 significantly reduced feed intake (P < 0.05). The apparent total tract digestibility (ATTD) of Ca was higher (P < 0.012) in treatments supplemented with additional vitamin D, irrespective of forms. The ATTD of P was higher (P < 0.0001) in T5 compared to the other treatments at both time points. The utilization of Ca and P by laying hens can be improved through the addition of different isoforms of vitamin D in diets. However, additional vitamin D supplementation to laying hens, regardless of forms, had no effect on either bone mineralization or measures of egg quality.
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Affiliation(s)
- R Adhikari
- Department of Poultry Science, University of Georgia, Athens, GA 30602
| | - D White
- Department of Poultry Science, University of Georgia, Athens, GA 30602
| | - J D House
- Department of Animal Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - W K Kim
- Department of Poultry Science, University of Georgia, Athens, GA 30602.
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McLaren JS, Macri-Pellizzeri L, Hossain KMZ, Patel U, Grant DM, Scammell BE, Ahmed I, Sottile V. Porous Phosphate-Based Glass Microspheres Show Biocompatibility, Tissue Infiltration, and Osteogenic Onset in an Ovine Bone Defect Model. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15436-15446. [PMID: 30990301 DOI: 10.1021/acsami.9b04603] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phosphate-based glasses (PBGs) are bioactive and fully degradable materials with tailorable degradation rates. PBGs can be produced as porous microspheres through a single-step process, using changes in their formulation and geometry to produce varying pore sizes and interconnectivity for use in a range of applications, including biomedical use. Calcium phosphate PBGs have recently been proposed as orthobiologics, based on their in vitro cytocompatibility and ion release profile. In this study, porous microspheres made of two PBG formulations either containing TiO2 (P40Ti) or without (P40) were implanted in vivo in a large animal model of bone defect. The biocompatibility and osteogenic potential of these porous materials were assessed 13 weeks postimplantation in sheep and compared to empty defects and autologous bone grafts used as negative and positive controls. Histological analysis showed marked differences between the two formulations, as lower trabeculae-like interconnection and higher fatty bone marrow content were observed in the faster degrading P40-implanted defects, while the slower degrading P40Ti material promoted dense interconnected tissue. Autologous bone marrow concentrate (BMC) was also incorporated within the P40 and P40Ti microspheres in some defects; however, no significant differences were observed in comparison to microspheres implanted alone. Both formulations induced the formation of a collagen-enriched matrix, from 20 to 40% for P40 and P40Ti2.5 groups, suggesting commitment toward the bone lineage. With the faster degrading P40 formulation, mineralization of the tissue matrix was observed both with and without BMC. Some lymphocyte-like cells and foreign body multinucleated giant cells were observed with P40Ti2.5, suggesting that this more durable formulation might be linked to an inflammatory response. In conclusion, these first in vivo results indicate that PBG microspheres could be useful candidates for bone repair and regenerative medicine strategies and highlight the role of material degradation in the process of tissue formation and maturation.
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Fernandes HR, Gaddam A, Rebelo A, Brazete D, Stan GE, Ferreira JMF. Bioactive Glasses and Glass-Ceramics for Healthcare Applications in Bone Regeneration and Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2530. [PMID: 30545136 PMCID: PMC6316906 DOI: 10.3390/ma11122530] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 12/12/2022]
Abstract
The discovery of bioactive glasses (BGs) in the late 1960s by Larry Hench et al. was driven by the need for implant materials with an ability to bond to living tissues, which were intended to replace inert metal and plastic implants that were not well tolerated by the body. Among a number of tested compositions, the one that later became designated by the well-known trademark of 45S5 Bioglass® excelled in its ability to bond to bone and soft tissues. Bonding to living tissues was mediated through the formation of an interfacial bone-like hydroxyapatite layer when the bioglass was put in contact with biological fluids in vivo. This feature represented a remarkable milestone, and has inspired many other investigations aiming at further exploring the in vitro and in vivo performances of this and other related BG compositions. This paradigmatic example of a target-oriented research is certainly one of the most valuable contributions that one can learn from Larry Hench. Such a goal-oriented approach needs to be continuously stimulated, aiming at finding out better performing materials to overcome the limitations of the existing ones, including the 45S5 Bioglass®. Its well-known that its main limitations include: (i) the high pH environment that is created by its high sodium content could turn it cytotoxic; (ii) and the poor sintering ability makes the fabrication of porous three-dimensional (3D) scaffolds difficult. All of these relevant features strongly depend on a number of interrelated factors that need to be well compromised. The selected chemical composition strongly determines the glass structure, the biocompatibility, the degradation rate, and the ease of processing (scaffolds fabrication and sintering). This manuscript presents a first general appraisal of the scientific output in the interrelated areas of bioactive glasses and glass-ceramics, scaffolds, implant coatings, and tissue engineering. Then, it gives an overview of the critical issues that need to be considered when developing bioactive glasses for healthcare applications. The aim is to provide knowledge-based tools towards guiding young researchers in the design of new bioactive glass compositions, taking into account the desired functional properties.
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Affiliation(s)
- Hugo R Fernandes
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Anuraag Gaddam
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Avito Rebelo
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Daniela Brazete
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - George E Stan
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
| | - José M F Ferreira
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
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Lese I, Graf DA, Tsai C, Taddeo A, Matter MT, Constantinescu MA, Herrmann IK, Olariu R. Bioactive nanoparticle-based formulations increase survival area of perforator flaps in a rat model. PLoS One 2018; 13:e0207802. [PMID: 30475867 PMCID: PMC6258121 DOI: 10.1371/journal.pone.0207802] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/06/2018] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Distal flap necrosis is a frequent complication of perforator flaps. Advances in nanotechnology offer exciting new therapeutic approaches. Anti-inflammatory and neo-angiogenic properties of certain metal oxides within the nanoparticles, including bioglass and ceria, may promote flap survival. Here, we explore the ability of various nanoparticle formulations to increase flap survival in a rat model. MATERIALS AND METHODS A 9 x 3 cm dorsal flap based on the posterior thigh perforator was raised in 32 Lewis rats. They were divided in 4 groups and treated with different nanoparticle suspensions: I-saline (control), II-Bioglass, III-Bioglass/ceria and IV-Zinc-doped strontium-substituted bioglass/ceria. On post-operative day 7, planimetry and laser Doppler analysis were performed to assess flap survival and various samples were collected to investigate angiogenesis, inflammation and toxicity. RESULTS All nanoparticle-treated groups showed a larger flap survival area as compared to the control group (69.9%), with groups IV (77,3%) and II (76%) achieving statistical significance. Blood flow measurements by laser Doppler analysis showed higher perfusion in the nanoparticle-treated flaps. Tissue analysis revealed higher number of blood vessels and increased VEGF expression in groups II and III. The cytokines CD31 and MCP-1 were decreased in groups II and IV. CONCLUSIONS Bioglass-based nanoparticles exert local anti-inflammatory and neo-angiogenic effects on the distal part of a perforator flap, increasing therefore its survival. Substitutions in the bioglass matrix and trace metal doping allow for further tuning of regenerative activity. These results showcase the potential utility of these nanoparticles in the clinical setting.
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Affiliation(s)
- Ioana Lese
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Bern, Switzerland.,Department for Biomedical Research, University of Bern, Bern, Switzerland
| | | | - Catherine Tsai
- Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Adriano Taddeo
- Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Martin Tobias Matter
- Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Mihai A Constantinescu
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Bern, Switzerland.,Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Inge Katrin Herrmann
- Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Radu Olariu
- Department of Plastic and Hand Surgery, Inselspital, Bern University Hospital, Bern, Switzerland.,Department for Biomedical Research, University of Bern, Bern, Switzerland
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Chen Y, Gao A, Bai L, Wang Y, Wang X, Zhang X, Huang X, Hang R, Tang B, Chu PK. Antibacterial, osteogenic, and angiogenic activities of SrTiO 3 nanotubes embedded with Ag 2 O nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1049-1058. [DOI: 10.1016/j.msec.2017.03.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 02/27/2017] [Accepted: 03/02/2017] [Indexed: 01/01/2023]
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Cheng H, Xiong W, Fang Z, Guan H, Wu W, Li Y, Zhang Y, Alvarez MM, Gao B, Huo K, Xu J, Xu N, Zhang C, Fu J, Khademhosseini A, Li F. Strontium (Sr) and silver (Ag) loaded nanotubular structures with combined osteoinductive and antimicrobial activities. Acta Biomater 2016; 31:388-400. [PMID: 26612413 DOI: 10.1016/j.actbio.2015.11.046] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 11/16/2015] [Accepted: 11/19/2015] [Indexed: 01/06/2023]
Abstract
Two frequent problems are associated with the titanium surfaces of bone/dental implants: lack of native tissue integration and associated infection. These problems have prompted a significant body of research regarding the modification of these surfaces. The present study describes a hydrothermal treatment for the fabrication of strontium (Sr) and silver (Ag) loaded nanotubular structures with different tube diameters on titanium surfaces. The Sr loading from a Sr(OH)2 solution was regulated by the size of the inner diameter of the titanium nanotubes (NT) (30nm or 80nm, formed at 10V or 40V, respectively). The quantity of Ag was adjusted by immersing the samples in 1.5 or 2.0M AgNO3 solutions. Sr and Ag were released in a controllable and prolonged matter from the NT-Ag.Sr samples, with negligible cytotoxicity. Prominent antibacterial activity was observed due to the release of Ag. Sr incorporation enhanced the initial cell adhesion, migration, and proliferation of preosteoblast MC3T3-E1 cells. Sr release also up-regulated the expression of osteogenic genes and induced mineralization, as suggested by the presence of more mineralized calcium nodules in cells cultured on NT-Ag.Sr surfaces. In vivo experiments showed that the Sr-loaded samples accelerated the formation of new bone in both osteoporosis and bone defect models, as confirmed by X-ray, Micro-CT evaluation, and histomorphometric analysis of rats implanted with NT-Ag.Sr samples. The antibacterial activity and outstanding osteogenic properties of NT-Ag.Sr samples highlight their excellent potential for use in clinical applications. STATEMENT OF SIGNIFICANCE Two frequent problems associated with Ti surfaces, widely used in orthopedic and dental arenas, are their lack of native tissue integration and risk of infection. We describe a novel approach for the fabrication of strontium (Sr) and silver (Ag) loaded nanotubular structures on titanium surfaces. A relevant aspect of this work is the demonstration of long-lasting and controllable Ag release, leading to excellent antibacterial and anti-adherent properties against methicillin-resistant Staphylococcus aureus (MRSA), and Gram-negative bacteria such as Escherichia coli. The extended release of Sr accelerates the filling of bone defects by improving the repair of damaged cortical bone and increasing trabecular bone microarchitecture. Our results highlight the potential of Sr and Ag loaded nanotubular structures for use in clinical applications.
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Browning LC, Cowieson AJ. Interactive effects of vitamin D3 and strontium on performance, nutrient retention and bone mineral composition in laying hens. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1080-1087. [PMID: 24961676 DOI: 10.1002/jsfa.6801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Strontium is currently prescribed for patients with osteoporosis to increase bone density and reduce bone fractures but its relevance in animal nutrition is obscure. In order to investigate the effect of supplemental strontium and vitamin D3 on performance, egg quality and skeletal integrity in poultry a total of 108 laying hens, 99 weeks of age, were fed three levels of strontium (0, 500, 1000 mg kg(-1) ) and two levels of vitamin D3 (2500, 5,000 iu kg(-1)) over a 12-week period. RESULTS There was an improvement (P < 0.05) in egg production and feed conversion efficiency with strontium at 500 mg kg(-1) and a significant increase in egg weight in those hens fed additional vitamin D3 . Supplemental strontium increased phosphorus, sodium and strontium retention in birds fed 2500 iu D3 kg(-1) but reduced phosphorus, sodium and strontium retention in birds fed 5000 iu D3 kg(-1), resulting in an interaction (P < 0.01) between strontium and vitamin D3 . Addition of 5000 iu D3 kg(-1) increased egg weight (P < 0.05); predominantly by increased albumen content (P < 0.05), whereas strontium supplementation reduced egg weight (P < 0.001). Similarly, 5000 iu kg(-1) D3 increased apparent metabolizable energy (P < 0.05); in contrast, strontium supplementation reduced (P < 0.05) apparent metabolizable energy. CONCLUSION The addition of 500 mg kg(-1) strontium significantly improved egg production and feed efficiency; however, further investigation needs to be undertaken to refine the optimum level of strontium required to maximize hen performance. The interrelationship between strontium and vitamin D3 requires further exploratory study.
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Affiliation(s)
- Linda C Browning
- Poultry Research Foundation, University of Sydney, Camden, NSW, 2570, Australia; Poultry CRC, PO Box U242, University of New England, Armidale, NSW, 2351, Australia
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Exposure to Selected Geogenic Trace Elements (I, Li, and Sr) from Drinking Water in Denmark. GEOSCIENCES 2015. [DOI: 10.3390/geosciences5010045] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu X, Zhu S, Cui J, Shao H, Zhang W, Yang H, Xu Y, Geng D, Yu L. Strontium ranelate inhibits titanium-particle-induced osteolysis by restraining inflammatory osteoclastogenesis in vivo. Acta Biomater 2014; 10:4912-4918. [PMID: 25078426 DOI: 10.1016/j.actbio.2014.07.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 07/14/2014] [Accepted: 07/21/2014] [Indexed: 12/19/2022]
Abstract
Wear-particle-induced osteolysis is considered to be the main reason for revision after arthroplasty. Although the exact mechanism remains unclear, inflammatory osteoclastogenesis plays an important role in this process. Strontium ranelate (SR) was found to have a therapeutic effect on osteoporosis in postmenopausal women. Based on prior studies, the present authors hypothesized that SR prevents wear-particle-induced osteolysis through restraining inflammatory osteoclastogenesis. The present study used 80 male C57BL/J6 mice to test this hypothesis in a murine osteolysis model. All experimental animals were randomly divided into four groups: a control group; a SR group; a titanium group; and a titanium+SR group. Once titanium particles had been implanted in mice, the mice were administered SR (900 mg kg(-1) day(-1)) by gavage for 14 days. After 14 days, the calvaria were collected for micro-computed tomography (μCT), histological and molecular analysis. The results of μCT and histomorphometric analysis demonstrated that SR markedly inhibited bone resorption and the generation of tartrate-resistant acid-phosphatase-positive cells in vivo, compared with titanium-stimulated calvaria. Reverse transcription polymerase chain reaction and ELISAs showed that SR stimulated the mRNA and protein expression of osteoprotegerin, and inhibited gene and protein expression of receptor activators of nuclear factor-kappa B ligand in titanium-particle-charged calvaria. In addition, SR obviously reduced the secretion of tumor necrosis factor-α and interleukin-1β in the calvaria of the titanium group. It was concluded that SR inhibits titanium-induced osteolysis by restraining inflammatory osteoclastogenesis, and that it could be developed as a new drug to prevent and treat aseptic loosening.
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The concentration of strontium and other minerals in animal feed ingredients. JOURNAL OF APPLIED ANIMAL NUTRITION 2014. [DOI: 10.1017/jan.2013.9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryVariance in macro- and micro-mineral concentration in feed ingredients for farmed livestock contributes to sub-optimal performance and may compromise health and welfare. Although routine quality assurance and quality control procedures in feed mills or integrated poultry or swine businesses may track variance in the concentration of minerals of immediate nutritional importance, such as phosphorus (P), calcium (Ca) and sodium (Na), micro-minerals such as strontium (Sr) attract less attention. In order to create a framework for further study, the mineral concentration in more than 130 animal feed ingredients commonly used in Australia were analysed by inductively coupled plasma optical emission spectroscopy (ICP-OES). Due to a dearth of information, the principal focus of the survey was Sr, but the concentration of Ca, P, magnesium (Mg), manganese (Mn), potassium (K), iron (Fe), copper (Cu), zinc (Zn), sulphur (S) and Na were analysed concurrently. Generally the minerals present at the highest concentrations in the various feed ingredients examined were Ca, P and Mg. As anticipated, the ingredients with the highest concentrations of Ca and P were inorganic phosphates, limestone and meat and bone meal. The average Ca concentration in limestone was 393 g/kg but a range of 376–415 g/kg was observed which may be nutritionally important. Furthermore, the Mg concentration in limestone ranged from 7–535 mg/kg suggesting some contamination by dolomite lime sources. A total of 24 meat and bone meal samples were included in the analysis and mean Ca and P concentrations were 109 and 54 g/kg respectively. However, the range of Ca and P in meat and bone meal was considerable with Ca concentrations from 51–148 g/kg and P concentrations from 26–66 g/kg. A total of 81 cereal, grain legume and cereal by-product samples were included as part of the survey and these vegetable feed ingredients contained relatively low concentrations of most minerals with Ca, P, Mg and K dominating. The K concentration of soybean meal was found to be around 23 g/kg and ranged from approximately 22–27 g/kg. In comparison, the Sr concentration in the feed ingredients was low relative to other minerals, with limestone having the highest level of strontium at 329 mg/kg. Overall those feed ingredients from a mineral origin had the highest level of Sr. In addition, meat and bone meal had a relatively high concentration of Sr (around 159 mg/kg).
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Microchemical investigation of bone derived from mice treated with strontium in different chemical forms using scanning electron microscopy and micro-Raman spectroscopy. Microchem J 2013. [DOI: 10.1016/j.microc.2012.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Taylor AC, Horvat-Gordon M, Moore A, Bartell PA. The effects of melatonin on the physical properties of bones and egg shells in the laying hen. PLoS One 2013; 8:e55663. [PMID: 23468846 PMCID: PMC3585294 DOI: 10.1371/journal.pone.0055663] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 12/29/2012] [Indexed: 11/18/2022] Open
Abstract
Laying hens often experience unbalanced calcium utilization which can cause deficiencies in bone and egg mineralization. Because melatonin has been shown to affect bone mineralization in other animals, we examined whether treating hens with melatonin would affect eggshell thickness and improve skeletal performance, thereby reducing skeletal and egg shell defects. Birds were given a diet containing either low (30 µg/kg), medium (300 µg/kg), or high (3 mg/kg) concentrations of melatonin, or control feed through approximately one laying cycle. We examined the weight, length, and strength of egg, femur, tibia, and keel. Hens treated with a high concentration of melatonin showed significant strengthening in their femur and tibia, as measured by maximum force sustained and breaking force, compared to controls. Egg weights from hens treated with melatonin were significantly greater than those from hens that were not treated with melatonin. Conversely, egg shell mass of hens treated with melatonin was significantly lower than those of hens not treated with melatonin. Our data suggest that melatonin may affect the allocation of calcium to bone at the expense of egg shell mineralization.
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Affiliation(s)
- Alexander C. Taylor
- Department of Animal Science, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Intercollege Graduate Degree Program in Physiology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Maria Horvat-Gordon
- Department of Animal Science, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Ashli Moore
- Department of Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Paul A. Bartell
- Department of Animal Science, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Intercollege Graduate Degree Program in Physiology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- * E-mail:
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Mohan BG, Shenoy SJ, Babu SS, Varma HK, John A. Strontium calcium phosphate for the repair of leporine (Oryctolagus cuniculus) ulna segmental defect. J Biomed Mater Res A 2012; 101:261-71. [DOI: 10.1002/jbm.a.34324] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/19/2012] [Accepted: 06/20/2012] [Indexed: 11/11/2022]
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Li Z, Peng S, Pan H, Tang B, Lam RWM, Lu WW. Microarchitecture and nanomechanical properties of trabecular bone after strontium administration in osteoporotic goats. Biol Trace Elem Res 2012; 145:39-46. [PMID: 21814830 PMCID: PMC3256317 DOI: 10.1007/s12011-011-9158-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 07/19/2011] [Indexed: 12/04/2022]
Abstract
Strontium (Sr) ralenate is a new agent used for the prevention and treatment of osteoporosis. As a bone-seeking element, 98% of Sr is deposited in the bone and teeth after oral ingestion. However, the effect of Sr treatment on bone microarchitecture and bone nanomechanical properties remains unclear. In this study, 18 osteoporotic goats were divided into four groups according to the treatment regimen: control, calcium alone (Ca), calcium and Sr at 24 mg/kg (Ca + 24Sr), and calcium and Sr at 40 mg/kg (Ca + 40Sr). The effects of Sr administration on bone microarchitecture and nanomechanical properties of trabecular bones were analyzed with micro-CT and nanoindentation test, respectively. Serum Sr levels increased six- and tenfold in the Ca + 24Sr and Ca + 40Sr groups, respectively. Similarly, Sr in the bone increased four- and sixfold in these two groups. Sr administration significantly increased trabecular bone volume fraction, trabecular thickness, and double-labeled new bone area. Sr administration, however, did not significantly change the nanomechanical properties of trabecular bone (elastic modulus and hardness). The data suggested that Sr administration increased trabecular bone volume and improved the microarchitecture while maintaining the intrinsic tissue properties in the osteoporotic goat model.
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Affiliation(s)
- Zhaoyang Li
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong China
| | - Songlin Peng
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong China
| | - Haobo Pan
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong China
| | - Bin Tang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, Hong Kong China
| | - Raymond W. M. Lam
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong China
| | - William W. Lu
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong China
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Room 907, Lab Block, 21 Sassoon Road, Hong Kong, China
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Peng S, Liu XS, Zhou G, Li Z, Luk KDK, Guo XE, Lu WW. Osteoprotegerin deficiency attenuates strontium-mediated inhibition of osteoclastogenesis and bone resorption. J Bone Miner Res 2011; 26:1272-82. [PMID: 21611968 DOI: 10.1002/jbmr.325] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Strontium (Sr) exerts an anabolic and antiresorptive effect on bone, but the mechanism remains unknown. Osteoprotegerin (OPG) expressed by osteoblasts plays an important role in regulating bone homeostasis by inhibiting osteoclastogenesis and bone resorption. This study aims at evaluating the role of OPG in Sr-mediated inhibition of osteoclastogenesis and bone resorption. Six-week-old Opg knockout (KO) male mice and their wild-type (WT) littermates were treated orally with vehicle (Veh) or Sr compound (4 mmol/kg) daily for 8 weeks. Bone mass and microstructure in the lumbar spine (L(4)) and proximal tibia were analyzed with micro-computed tomography (µCT). Bone remodeling was evaluated with serum biochemical analysis and static and dynamic bone histomorphometry. Osteoclast differentiation potential and gene expression were analyzed in bone marrow cells. The findings demonstrate that Sr compound treatment results in greater bone volume and trabecular number than Veh treatment in WT mice. The anabolic response of trabecular bone to Sr treatment is attenuated in KO mice. Although Sr treatment significantly decreases in vitro osteoclastogenesis and bone resorption in WT mice, these effects are attenuated in KO mice. Furthermore, Sr treatment profoundly increases Opg gene expression in the tibias and OPG protein levels in the sera of WT mice. This study concludes that the inhibition of osteoclastogenesis and bone resorption is possibly associated with OPG upregulation by Sr treatment.
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Affiliation(s)
- Songlin Peng
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong
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Hoppe A, Güldal NS, Boccaccini AR. A review of the biological response to ionic dissolution products from bioactive glasses and glass-ceramics. Biomaterials 2011; 32:2757-74. [PMID: 21292319 DOI: 10.1016/j.biomaterials.2011.01.004] [Citation(s) in RCA: 1278] [Impact Index Per Article: 98.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Accepted: 01/04/2011] [Indexed: 01/08/2023]
Abstract
Several inorganic materials such as special compositions of silicate glasses, glass-ceramics and calcium phosphates have been shown to be bioactive and resorbable and to exhibit appropriate mechanical properties which make them suitable for bone tissue engineering applications. However, the exact mechanism of interaction between the ionic dissolution products of such inorganic materials and human cells are not fully understood, which has prompted considerable research work in the biomaterials community during the last decade. This review comprehensively covers literature reports which have investigated specifically the effect of dissolution products of silicate bioactive glasses and glass-ceramics in relation to osteogenesis and angiogenesis. Particularly, recent advances made in fabricating dense biomaterials and scaffolds doped with trace elements (e.g. Zn, Sr, Mg, and Cu) and investigations on the effect of these elements on the scaffold biological performance are summarized and discussed in detail. Clearly, the biological response to artificial materials depends on many parameters such as chemical composition, topography, porosity and grain size. This review, however, focuses only on the ion release kinetics of the materials and the specific effect of the released ionic dissolution products on human cell behaviour, providing also a scope for future investigations and identifying specific research needs to advance the field. The biological performance of pure and doped silicate glasses, phosphate based glasses with novel specific compositions as well as several other silicate based compounds are discussed in detail. Cells investigated in the reviewed articles include human osteoblastic and osteoclastic cells as well as endothelial cells and stem cells.
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Affiliation(s)
- Alexander Hoppe
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
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Römer P, Behr M, Proff P, Faltermeier A, Reicheneder C. Effect of strontium on human Runx2+/- osteoblasts from a patient with cleidocranial dysplasia. Eur J Pharmacol 2011; 654:195-9. [PMID: 21236248 DOI: 10.1016/j.ejphar.2010.12.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 11/25/2010] [Accepted: 12/19/2010] [Indexed: 11/15/2022]
Abstract
Strontium represents a new generation of anti-osteoporotic agents that exert anti-catabolic and anabolic effects on bone cells at once. We used strontium in vitro in order to examine its potential to stimulate bone marker transcription and hydroxyapatite formation on isolated Runx2(+/-) osteoblasts from a patient with cleidocranial dysplasia. This disease is evoked by heterozygous mutations of Runx2, an important transcription factor for osteoblast maturing and transcription of osteogenic genes, which results in insufficient gene dosage of Runx2. This genetic defect is responsible, for example, for patent fontanels, sometimes throughout the life, supernumerary teeth, and aplasia or hypoplasia of clavicles and mimics symptoms of hypophosphatasia. In this trial, we investigated the effect of strontium on gene expression of bone marker proteins, the formation of hydroxyapatite and the cell proliferation of strontium-treated Runx2(+/-)-osteoblasts. Unlike normal osteoblasts, gene expression of bone marker proteins was not affected in strontium-treated Runx2(+/-) osteoblasts, while improved hydroxyapatite formation was noted in the extracellular matrix. A WST-1 cell proliferation assay with strontium-treated Runx2(+/-)-osteoblasts showed that strontium induces cell proliferation and growth. This effect might be responsible for the improved mineralisation of the extracellular matrix of strontium-treated Runx2(+/-)-osteoblasts observed.
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Affiliation(s)
- Piero Römer
- Department of Orthodontics, University Medical Centre Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany.
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The effect of strontium-substituted hydroxyapatite coating on implant fixation in ovariectomized rats. Biomaterials 2010; 31:9006-14. [DOI: 10.1016/j.biomaterials.2010.07.112] [Citation(s) in RCA: 219] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 07/31/2010] [Indexed: 11/17/2022]
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Li Z, Lu WW, Deng L, Chiu PKY, Fang D, Lam RWM, Leong JCY, Luk KDK. The morphology and lattice structure of bone crystal after strontium treatment in goats. J Bone Miner Metab 2010; 28:25-34. [PMID: 19603246 DOI: 10.1007/s00774-009-0109-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Accepted: 06/03/2009] [Indexed: 10/20/2022]
Abstract
Strontium (Sr) compounds have become increasingly popular in osteoporosis treatment. As a bone seeking element, 98% of Sr deposits in bone and teeth after oral ingestion. However, the quality of new bone after Sr deposition is yet to be extensively investigated. In this study, eight osteopenic goats were divided into two groups: Ca + 40Sr (five goats) and controls (three goats). Controls were fed with low calcium feeds. Ca phosphate was supplied at 100 mg/(kg day), and Sr phosphate at 40 mg/(kg day) in the Ca + 40Sr group. The newly formed bone at the outer cortical area of the femur with Sr deposition was identified from tetracycline labels, and the morphology and lattice structure of the crystals in these regions were investigated. Results showed that Sr concentrations of bone tissue significantly increased 144.37% for Sr administration without significant change in Ca concentration, and the ingested Sr mainly deposited in new bone. The crystal isolated from new bone exhibited the typical character of biological apatite as determined by Fourier transform infrared spectroscopy and selected-area electron diffraction. Transmission electron microscopy examination showed that a crystal with width of 8-10 nm grew along with the (002) lattice and aligned with the same direction in both groups. The elemental analysis of crystals showed that the ingested Sr deposited mainly in the bone matrix or was absorbed on the bone crystal surface, while only a limited amount of Sr replaced Ca in apatite crystals. Our findings showed that Sr administration at current dosages for prevention and treatment of osteoporosis might not change the bone crystal morphology and structure.
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Affiliation(s)
- Zhaoyang Li
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Room 907, Lab Block, 21 Sassoon Road, Pokfulam, Hong Kong, China
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Rodrigues JL, Batista BL, Fillion M, Passos CJS, Mergler D, Barbosa F. Trace element levels in whole blood of riparian villagers of the Brazilian Amazon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:4168-4173. [PMID: 19329141 DOI: 10.1016/j.scitotenv.2009.02.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/14/2009] [Accepted: 02/26/2009] [Indexed: 05/27/2023]
Abstract
Monitoring the nutritional status of essential elements is of critical importance in human health. However, trace element concentrations in biological fluids are affected by environmental and physiological parameters, and therefore considerable variations can occur between specific population subgroups. Brazil is a large country with much food diversity. Moreover, dietary habits differ from north to south. As an example, the traditional populations of the Brazilian Amazon basin are heavily dependent on fish, fruits, vegetables and manioc for their daily sustenance. However, very few studies have examined to what extent these diets reflect adequate nutritional status for essential elements. Then, in the present study we have evaluated the levels of some trace elements (Cu, Co, Zn Sr, and Rb) in the whole blood of a riparian Brazilian Amazonian population and estimated the influence of age and gender on levels and inter-element interactions in the same population. For this, 253 subjects, aged 15 to 87, from 13 communities situated on the banks of the Tapajós, one of the major tributaries of the Amazon, were randomly selected. The values found for cobalt, copper and strontium in whole blood are in the same range as in other populations. On the other hand, the levels of rubidium and zinc may be considered higher. Moreover, gender was shown to influence Zn and Cu levels while age influenced the concentrations of Sr and Rb in men and Cu in women. Given the scarcity of studies examining nutritional status in traditional communities of the Amazon, our study is the first to provide relevant insight into trace element values in this region and inter-element interactions. This paper is also of particular importance for future studies looking at the possible protective effects of traditional Amazon riparian diets against mercury intake from fish consumption.
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Affiliation(s)
- Jairo Lisboa Rodrigues
- Laboratório de Toxicologia e Essencialidade de Metais, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-USP, Avenida do Café s/n, Monte Alegre, Ribeirão Preto-SP, Brazil
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Li Z, Lu WW, Chiu PKY, Lam RWM, Xu B, Cheung KMC, Leong JCY, Luk KDK. Strontium-calcium coadministration stimulates bone matrix osteogenic factor expression and new bone formation in a large animal model. J Orthop Res 2009; 27:758-62. [PMID: 19025756 DOI: 10.1002/jor.20818] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Strontium (Sr) has become increasingly attractive for use in the prevention and treatment of osteoporosis by concomitantly inhibiting bone resorption and enhancing bone formation. Strontium shares similar chemical, physical, and biological characteristics with calcium (Ca), which has been widely used as a dietary supplement in osteoporosis. However, the effects of Sr-Ca coadministration on bone growth and remodeling are yet to be extensively reported. In this study, 18 ovariectomized goats were divided into four groups: three groups of five goats each treated with 100 mg/kg/day Ca, Ca plus 24 mg/kg/day Sr (Ca + 24Sr), or Ca plus 40 mg/kg/day Sr (Ca + 40Sr), and three untreated goats fed low calcium feed. Serum Sr levels increased 6- and 10-fold in the Ca + 24Sr and Ca + 40Sr groups, respectively. Similarly, Sr in the bone increased four- and sixfold in these two groups. Sr-Ca coadministration considerably increased bone mineral apposition rate (MAR). The expression of insulin-like growth factor (IGF)-1 and runt-related transcription factor 2 (Runx2) was significantly upregulated within the Ca + 40Sr treatment group; tumor necrosis factor (TNF)-agr; expression was significantly downregulated in the Ca and Ca + 40Sr groups. The results indicate that Sr-Ca coadministration increases osteogenic gene expression and stimulates new bone formation.
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Affiliation(s)
- Zhaoyang Li
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong, China
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Vasquez SX, Hansen MS, Bahadur AN, Hockin MF, Kindlmann GL, Nevell L, Wu IQ, Grunwald DJ, Weinstein DM, Jones GM, Johnson CR, Vandeberg JL, Capecchi MR, Keller C. Optimization of volumetric computed tomography for skeletal analysis of model genetic organisms. Anat Rec (Hoboken) 2008; 291:475-87. [PMID: 18286615 DOI: 10.1002/ar.20670] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Forward and reverse genetics now allow researchers to understand embryonic and postnatal gene function in a broad range of species. Although some genetic mutations cause obvious morphological change, other mutations can be more subtle and, without adequate observation and quantification, might be overlooked. For the increasing number of genetic model organisms examined by the growing field of phenomics, standardized but sensitive methods for quantitative analysis need to be incorporated into routine practice to effectively acquire and analyze ever-increasing quantities of phenotypic data. In this study, we present platform-independent parameters for the use of microscopic x-ray computed tomography (microCT) for phenotyping species-specific skeletal morphology of a variety of different genetic model organisms. We show that microCT is suitable for phenotypic characterization for prenatal and postnatal specimens across multiple species.
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Affiliation(s)
- Sergio X Vasquez
- Greehey Children's Cancer Research Institute, The University of Texas Health Science Center San Antonio, San Antonio, Texas 78229, USA
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Bibliography. Current world literature. Parathyroids, bone and mineral metabolism. Curr Opin Endocrinol Diabetes Obes 2007; 14:494-501. [PMID: 17982358 DOI: 10.1097/med.0b013e3282f315ef] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Shahnazari M, Lang DH, Fosmire GJ, Sharkey NA, Mitchell AD, Leach RM. Strontium administration in young chickens improves bone volume and architecture but does not enhance bone structural and material strength. Calcif Tissue Int 2007; 80:160-6. [PMID: 17340224 DOI: 10.1007/s00223-006-0176-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2006] [Accepted: 11/12/2006] [Indexed: 10/23/2022]
Abstract
Genetic selection for rapid body growth in broiler chickens has resulted in adverse effects on the skeletal system exemplified by a higher rate of cortical fractures in leg bones. Strontium (Sr) has been reported to have beneficial effects on bone formation and strength. We supplemented the diet of 300-day-old chicks with increasing dosages of Sr (0%, 0.12%, or 0.24%) to study the capacity of the element to improve bone quality and mechanical integrity. Treatment with Sr increased cortical bone volume and reduced bone porosity as measured by micro-computed tomography. The higher level of Sr significantly reduced bone Ca content (34.7%) relative to controls (37.2%), suggesting that Sr replaced some of the Ca in bone. Material properties determined by the three-point bending test showed that bone in the Sr-treated groups withstood greater deformation prior to fracture. Load to failure and ultimate stress were similar across groups. Our results indicate that Sr treatment in rapidly growing chickens induced positive effects on bone volume but did not improve the breaking strength of long bones.
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Affiliation(s)
- M Shahnazari
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA
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