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Zhou R, Xue S, Cheng Y, Chen Y, Wang Y, Xing J, Liu H, Xu Y, Lin Y, Pei Z, Wei X, Ding J, Li S, Wang K, Yao F, Zhao Y, Ding C, Hu W. Macrophage membrane-camouflaged biomimetic nanoparticles for rheumatoid arthritis treatment via modulating macrophage polarization. J Nanobiotechnology 2024; 22:578. [PMID: 39300463 DOI: 10.1186/s12951-024-02822-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Accepted: 08/30/2024] [Indexed: 09/22/2024] Open
Abstract
Rheumatoid arthritis (RA) is a debilitating autoimmune disease characterized by chronic joint inflammation and cartilage damage. Current therapeutic strategies often result in side effects, necessitating the development of targeted and safer treatment options. This study introduces a novel nanotherapeutic system, 2-APB@DGP-MM, which utilizes macrophage membrane (MM)-encapsulated nanoparticles (NPs) for the targeted delivery of 2-Aminoethyl diphenylborinate (2-APB) to inflamed joints more effectively. The NPs are designed with a matrix metalloproteinase (MMP)-cleavable peptide, allowing for MMP-responsive drug release within RA microenvironment. Comprehensive in vitro and in vivo assays confirmed the successful synthesis and loading of 2-APB into the DSPE-GPLGVRGC-PEG (DGP) NPs, as well as their ability to repolarize macrophages from a pro-inflammatory M1 to an anti-inflammatory M2 phenotype. The NPs demonstrated high biocompatibility, low cytotoxicity, and enhanced cellular uptake. In a collagen-induced arthritis (CIA) mouse model, intra-articular injection of 2-APB@DGP-MM significantly reduced synovial inflammation and cartilage destruction. Histological analysis corroborated these findings, demonstrating marked improvements in joint structure and delayed disease progression. Above all, the 2-APB@DGP-MM nanotherapeutic system offers a promising and safe approach for RA treatment by modulating macrophage polarization and delivering effective agents to inflamed joints.
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Affiliation(s)
- Renpeng Zhou
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei, 230032, China
| | - Song Xue
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, 518036, China
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510200, China
| | - Yuanzhi Cheng
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Yong Chen
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yan Wang
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Jing Xing
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Hao Liu
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Yucai Xu
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Yi Lin
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Zejun Pei
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Xin Wei
- Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, People's Republic of China
| | - Jie Ding
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China
| | - Shufang Li
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Ke Wang
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Feng Yao
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yingjie Zhao
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China.
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei, 230032, China.
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510200, China.
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.
| | - Wei Hu
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
- The Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, 230032, China.
- The Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei, 230032, China.
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Ozer H, Hekimoglu M, Kulac I, Eren OC, Arici YK, Celik HS, Ozer AF, Hekimoğlu M. Osseointegration potential of boron-coated titanium alloy pedicle screw in rabbit spine model. BMC Musculoskelet Disord 2024; 25:737. [PMID: 39277741 PMCID: PMC11401436 DOI: 10.1186/s12891-024-07864-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 09/09/2024] [Indexed: 09/17/2024] Open
Abstract
BACKGROUND Spinal implants' longevity is crucial, but titanium alloys, while advantageous, lack strong bone integration. This study aimed to achieve better osseointegration rates by utilizing the ability of boron compounds to transform stem cells in the vertebra into osteoblasts. METHOD Twenty male albino rabbits were divided into control (n = 10) and experimental (n = 10) groups. Control group received titanium alloy pedicle screws, while experimental group received boron-coated titanium alloy screws. Under general anesthesia, screws were inserted into the L6 and L7 lumbar spines. After 16 weeks, all animals were euthanized for histological examination. Vertebra samples underwent decalcification and H&E staining. Microscopic examination assessed osseointegration, necrosis, fibrosis, and vascularization using a triple scoring system by two blinded observers. RESULT In the boron-coated titanium alloy group, all subjects exhibited osseointegration, with 50% showing focal, 40% moderate, and 10% complete osseointegration. In the titanium alloy group, 90% showed osseointegration (70% focal, 10% moderate, and 10% complete).The differences between the groups were not statistically significant (p = 0.302). Focal necrosis rates were similar between groups, with 50.0% in the titanium alloy and 60.0% in the boron-coated group (p = 0.653).Fibrosis was absent in the titanium alloy group but present in the boron-coated group, albeit with lower rates of focal fibrosis (20.0%). However, the difference was not statistically significant (p = 0.086).Vascularization patterns showed no significant difference between groups. CONCLUSION Boron-coated titanium alloy pedicle screws provided osseointegration rates comparable to standard titanium screws and exhibited acceptable levels of necrosis and fibrosis. With stronger biomechanical properties, they could be a better alternative to currently used titanium screws.
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Affiliation(s)
- Hidir Ozer
- Neurosurgery Department, Ordu University Hospital, Ordu, Turkey
| | - Mehdi Hekimoglu
- Neurosurgery Department, American Hospital, Istanbul, Turkey
| | - Ibrahim Kulac
- Pathology Department, Koc University Hospital, Istanbul, Turkey
| | - Ozgur Can Eren
- Pathology Department, Koc University Hospital, Istanbul, Turkey
| | - Yeliz Kasko Arici
- Faculty of Medicine, Biostatics and Medical Informatics Department, Ordu University, Ordu, Turkey
| | - Haydar Sahin Celik
- Ankara Research and Training Hospital, Neurosurgery Department, Ankara, Turkey
| | - Ali Fahir Ozer
- Neurosurgery Department, American Hospital, Istanbul, Turkey
- Neurosurgery Department, Koc University HAospital, Istanbul, Turkey
| | - Mehdi Hekimoğlu
- Neurosurgery Department, American Hospital, Istanbul, Turkey.
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Chen S, Fan H, Pei Y, Zhang K, Zhang F, Hu Q, Jin E, Li S. MAPK Signaling Pathway Plays Different Regulatory Roles in the Effects of Boric Acid on Proliferation, Apoptosis, and Immune Function of Splenic Lymphocytes in Rats. Biol Trace Elem Res 2024; 202:2688-2701. [PMID: 37737440 DOI: 10.1007/s12011-023-03862-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023]
Abstract
Boron is one of the essential trace elements in animals. Although boron supplementation can enhance immune function and promote cell proliferation, high-dose boron supplementation can negatively affect immune function and inhibit cell proliferation. Furthermore, its action pathway is unknown. In this study, ERK1/2, JNK, and p38MAPK signaling pathways were blocked using specific blockers to investigate the impact of low-dose and high-dose boron on proliferation, apoptosis, and immune function of lymphocytes, and the expression of genes related to cell proliferation and apoptosis in rats. The addition of 0.4 mmol/L boron did not affect the ratio of CD4+/CD8+ T cells (P>0.05), IgG and IFN-γ contents (P>0.05), the proliferation rate of lymphocytes (P>0.05), and mRNA and protein expressions of PCNA (P>0.05) in the spleen after ERK1/2 signal pathway was selectively inhibited. Moreover, the addition of 40 mmol/L boron did not affect the proportion of CD4+ T cells, contents of IgG and cytokines (IL-2 and IL-4), proliferation and apoptosis rates of lymphocytes, and expression of proliferation- and apoptosis-related genes in the spleen. Meanwhile, the addition of 0.4 mmol/l boron increased the ratio of CD4+/CD8+ T cells (P<0.05 or P<0.01), IFN-γ or IgG contents (P<0.05), and the proliferation rate of lymphocytes (P<0.05) in spleen after selective inhibition of JNK or p38MAPK signaling pathways, while the protein expression of Caspase-3 decreased (P<0.05 or P<0.01). Furthermore, 40 mmol/L boron decreased the proportion of lymphocyte subsets, cytokine contents, proliferation rate of lymphocytes, and mRNA and protein expressions of PCNA. In contrast, the mRNA and protein expressions of Caspase-3 and protein expression of Bax were increased. These results indicate that ERK1/2 signaling pathway mainly regulates the effects of low-dose and high-dose boron on proliferation, apoptosis, and immune function of splenic lymphocytes.
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Affiliation(s)
- Shuqin Chen
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Haoran Fan
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Yaqiong Pei
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Kaihuan Zhang
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Feng Zhang
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Qianqian Hu
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
| | - Erhui Jin
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China.
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China.
| | - Shenghe Li
- College of Animal Science, Anhui Science and Technology University, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, No.9 Donghua Road, Fengyang County, Chuzhou, Anhui Province, 233100, People's Republic of China
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Grams RJ, Santos WL, Scorei IR, Abad-García A, Rosenblum CA, Bita A, Cerecetto H, Viñas C, Soriano-Ursúa MA. The Rise of Boron-Containing Compounds: Advancements in Synthesis, Medicinal Chemistry, and Emerging Pharmacology. Chem Rev 2024; 124:2441-2511. [PMID: 38382032 DOI: 10.1021/acs.chemrev.3c00663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Boron-containing compounds (BCC) have emerged as important pharmacophores. To date, five BCC drugs (including boronic acids and boroles) have been approved by the FDA for the treatment of cancer, infections, and atopic dermatitis, while some natural BCC are included in dietary supplements. Boron's Lewis acidity facilitates a mechanism of action via formation of reversible covalent bonds within the active site of target proteins. Boron has also been employed in the development of fluorophores, such as BODIPY for imaging, and in carboranes that are potential neutron capture therapy agents as well as novel agents in diagnostics and therapy. The utility of natural and synthetic BCC has become multifaceted, and the breadth of their applications continues to expand. This review covers the many uses and targets of boron in medicinal chemistry.
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Affiliation(s)
- R Justin Grams
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | | | - Antonio Abad-García
- Academia de Fisiología y Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, 11340 Mexico City, Mexico
| | - Carol Ann Rosenblum
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Andrei Bita
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 2 Petru Rareş Street, 200349 Craiova, Romania
| | - Hugo Cerecetto
- Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, 11400 Montevideo, Uruguay
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Marvin A Soriano-Ursúa
- Academia de Fisiología y Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, 11340 Mexico City, Mexico
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Abdel-Haffiez SH, Khalil NM. Effect of platelet rich plasma injection on bone formation in the expanded mid-palatal suture in rabbits: a randomized controlled animal study. BMC Oral Health 2024; 24:167. [PMID: 38308245 PMCID: PMC10835953 DOI: 10.1186/s12903-024-03922-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Mid-Palatal suture expansion needs long retention period due to delayed bone formation in the expanded suture. Platelet-rich plasma (PRP) is a concentrated source of growth factors which increase bone formation. The aim of this study was to evaluate the effect of PRP injection on bone formation in expanded mid palatal suture in rabbits. METHODS In this prospective randomized controlled animal study, Twenty male rabbits (8-weeks-old) were subjected to mid-palatal expansion for 5 days. Animals were afterwards randomly divided into control group A & study group B. PRP was prepared and injected in the mid-palatal suture in animals belonging to group B only. After 6 weeks of retention, all animals were euthanized, and premaxillae were prepared for histological, histomorphometric and immunohistochemical analysis. Student t-test and paired t-test were used to compare the means of the two groups and within the same group respectively. Significance level set at p ≤ 0.05. RESULTS Histomorphometric analysis revealed a significant increase (p < 0.001) in the mean percentage of new bone in the study group (14.4%) compared to the control (1.4%). Suture width in study group was significantly wider than the control group (278.8 ± 9μms and 120.4 ± 3.4μms, p < 0.001). There was a significant increase in vascular density in study group than control group (309 ± 65.34 and 243.86 ± 48.1, p = 0.021). Osteopontin immuno-expression revealed a significant increase in optical density in study group than control group (0.21 ± 0.02 & 0.12 ± 0.01, p < 0.001). CONCLUSIONS In rabbit model, PRP injection can accelerate new bone formation in the expanded mid-palatal suture when compared to the control. This could hopefully result in a more stable midpalatal expansion and a reduced retention period.
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Erbasar GNH, Kaplan V, Cigerim L, Konarili FN, Sahin M. Effect of combined boric acid and chlorhexidine mouthwashes on postoperative complications and periodontal healing after impacted third molar surgery: a-double blind randomized study. Clin Oral Investig 2023:10.1007/s00784-023-04999-z. [PMID: 37010641 DOI: 10.1007/s00784-023-04999-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 03/28/2023] [Indexed: 04/04/2023]
Abstract
OBJECTIVES This study aimed to evaluate the effects of different concentrations of boric acid (BA) combined with chlorhexidine (CHX) mouthwash on postoperative complications and periodontal healing following impacted third molar surgery. MATERIALS AND METHODS A total of 80 patients were randomly divided into eight groups. The patients in the study groups received different concentrations of BA ranging from 0.1% to 2.5% combined with CHX or 2% BA mouthwash alone. The control group received CHX mouthwash alone. The scores of self-reported pain and jaw dysfunction, trismus, edema, number of analgesics used, and periodontal parameters were compared between the groups. RESULTS 2.5% BA + CHX group had significantly lower pain and facial swelling values during the follow-up period. 2% BA + CHX group reported significantly lower jaw dysfunction scores on the fourth and fifth postoperative days. The control group showed significantly higher values for pain, jaw dysfunction, and facial swelling than other groups. No significant differences were found between the groups regarding trismus, analgesic use, and periodontal variables. CONCLUSIONS The combination of higher concentrations of BA with CHX was more effective in reducing pain, jaw dysfunction, and swelling following impacted third molar surgery than CHX mouthwash alone. CLINICAL RELEVANCE The combination of BA and CHX showed better results than the gold standard CHX mouthwash in reducing postoperative complications related to surgical removal of impacted third molars without any adverse effects. This new combination can be an effective alternative to traditional mouthwashes after impacted third molar surgery to ensure oral hygiene.
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Affiliation(s)
- Guzin Neda Hasanoglu Erbasar
- Ankara Yıldırım Beyazıt University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Ankara, Turkey
| | - Volkan Kaplan
- Tekirdag Namik Kemal University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Tekirdag, Turkey.
| | - Levent Cigerim
- Van Yuzuncu Yil University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Van, Turkey
| | - Fatma Nur Konarili
- Ankara Yıldırım Beyazıt University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Ankara, Turkey
| | - Mukerrem Sahin
- Ankara Yıldırım Beyazıt University, Faculty of Engineering and Natural Sciences, Department of Energy Systems Engineering, Ankara, Turkey
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The Localized Ionic Microenvironment in Bone Modelling/Remodelling: A Potential Guide for the Design of Biomaterials for Bone Tissue Engineering. J Funct Biomater 2023; 14:jfb14020056. [PMID: 36826855 PMCID: PMC9959312 DOI: 10.3390/jfb14020056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/11/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Bone is capable of adjusting size, shape, and quality to maintain its strength, toughness, and stiffness and to meet different needs of the body through continuous remodeling. The balance of bone homeostasis is orchestrated by interactions among different types of cells (mainly osteoblasts and osteoclasts), extracellular matrix, the surrounding biological milieus, and waste products from cell metabolisms. Inorganic ions liberated into the localized microenvironment during bone matrix degradation not only form apatite crystals as components or enter blood circulation to meet other bodily needs but also alter cellular activities as molecular modulators. The osteoinductive potential of inorganic motifs of bone has been gradually understood since the last century. Still, few have considered the naturally generated ionic microenvironment's biological roles in bone remodeling. It is believed that a better understanding of the naturally balanced ionic microenvironment during bone remodeling can facilitate future biomaterial design for bone tissue engineering in terms of the modulatory roles of the ionic environment in the regenerative process.
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Hakki SS, Kayis SA, Dundar N, Hamurcu M, Basoglu A, Nielsen FH. Nail Mineral Composition Changes Do Not Reflect Bone Mineral Changes Caused by Boron Supplementation. Biol Trace Elem Res 2023; 201:215-219. [PMID: 35157231 DOI: 10.1007/s12011-022-03151-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/04/2022] [Indexed: 01/11/2023]
Abstract
Nails have been found to be a non-invasive and readily available tissue whose mineral content can change because of a change in dietary mineral intake. Thus, this study was undertaken to determine whether boron (B) supplementation would change the concentrations of some mineral elements in nails and whether these changes correlated with changes induced in bone. Female New Zealand White rabbits (aged 8 months, 2-2.5 kg weight) were fed a grain-based, high-energy diet containing 3.88 mg B/kg. The rabbits were divided into four treatment groups: controls receiving no supplemental B (N: 7; C) and three groups supplemented with 30 mg B/L in drinking water as borax decahydrate (Na2B4O7∙10H2O, N: 10; BD), borax anhydrous (Na2B4O7, N: 7; Bah), and boric acid (H3BO3, N: 7; BA). Boron, calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), phosphorus (P), potassium (K), sodium (Na), sulfur (S), and zinc (Zn) concentrations in nails were determined by inductively coupled plasma atomic emission spectroscopy. Parametric and non-parametric multiple group comparisons and post hoc tests were performed and whether a correlation between nail and tibia and femur mineral elements concentrations were determined. A p-value of < 0.05 was considered statistically significant. Boron was not detectable in control nails but was found in the nails of the three B supplemented groups. Boron supplementation markedly increased the Ca concentration in nails with the effect greatest in the BA and BD groups. The P and Mg concentrations also were increased by B supplementation with the effect most marked in the BA group. In contrast, B supplementation decreased the Na concentration with the effect most noticeable in the BD and Bah groups. The Zn concentration in nails was not affected by BA and BD supplementation but was decreased by Bah supplementation. Boron supplementation did not significantly affect the concentrations of Cu, Fe, Mo, K, and S in nails. No meaningful significant correlations were found between nail mineral elements and tibia and femur mineral elements found previously. Nails can be an indicator of the response to boron supplementation but are not useful to indicate changes in mineral elements in bone in response to B supplementation.
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Affiliation(s)
- Sema S Hakki
- Department of Periodontology, Faculty of Dentistry, Selcuk University, Konya, 42079, Turkey.
- Research Center of Faculty of Dentistry, Selcuk University, Konya, Turkey.
| | - Seyit Ali Kayis
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Niyazi Dundar
- Research Center of Faculty of Dentistry, Selcuk University, Konya, Turkey
| | - Mehmet Hamurcu
- Faculty of Agriculture, Soil Science and Plant Nutrition, Selcuk University, Konya, Turkey
| | - Abdullah Basoglu
- Department of Internal Medicine, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
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Christopher M, Fazal A, Mehdi MM, Anthoney D, Idrees QTA, Javaid R. Histological evaluation of wound healing by topical phenytoin application on extraction socket: an in vivo study in albino Wistar rats. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2023. [DOI: 10.1051/mbcb/2023004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
Objective: To investigate the effects of topical phenytoin application on wound healing of extraction socket of albino Wistar rats. Materials and methods: Thirty-six albino Wistar rats were randomly divided into Group A (control), B (1% phenytoin mucoadhesive paste), and C (mucoadhesive paste without phenytoin). All animals were anesthetized followed by first molar extraction. Group A did not receive any agent, whereas, Group B and C received daily application of their respective pastes. Four animals from each group were sacrificed on day 7, 14, and 21 and analyzed histologically. Results: No significant difference was found in blood vessel count among the groups. Statistical increase in percentage of fibroblast in Group B was found as compared with other groups at day 7, whereas, no significant difference was found among groups at day 14. Day 21 showed significant decrease in percentage of fibroblasts in Group B (p-value < 0.001) as compared with Group A and C. Increase in percentage of bone trabeculae in Group B was observed on day 7, 14, and 21 with a significant difference (p-value < 0.05) as compared to Group A and C. Conclusion: Topical application of phenytoin promoted fibroblast proliferation and bone trabeculae formation during healing of extraction socket in rats.
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Ayşeşek N, Arısan V, Balcıoğlu NB, Erol A, Kuruoğlu F, Tekkeşin MS, Ersanlı S. Boron- and Boric Acid-Treated Titanium Implant Surfaces in Sheep Tibia: A Histologic, Histomorphometric and Mechanical Study. Bioengineering (Basel) 2022; 9:bioengineering9110705. [PMID: 36421106 PMCID: PMC9687523 DOI: 10.3390/bioengineering9110705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/17/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to compare the topographical, chemical and osseointegration characteristics of sandblasting and acid-etching (SLA) surfaces and dental implants treated by boron compounds. Titanium (Ti) disks (n = 20) were modified using boron (B) and boric acid (H3BO3) and then compared with the conventional SLA surface via surface topographic characterizations. Dental implants (3.5 mm in diameter and 8 mm in length) with the experimental surfaces (n = 96) were inserted into the tibias of six sheep, which were left to heal for 3 and 7 weeks. Histologic, histomorphometric (bone−implant contact (BIC%)) and mechanical tests (removal torque value (RTV)) were performed. The boron-coated surface (BC group) was smoother (Rz: 4.51 μm ± 0.13) than the SLA (5.86 μm ± 0.80) and the SLA-B (5.75 μm ± 0.64) groups (p = 0.033). After 3 weeks, the highest mean RTV was found in the SLA group (37 N/cm ± 2.87), and the difference compared with the BC group (30 N/cm ± 2.60) was statistically significant (p = 0.004). After 7 weeks, the mean RTV was >80 N/cm in all groups; the highest was measured in the H3BO3-treated (BS) group (89 N/cm ± 1.53) (p < 0.0001). No statistically significant differences were found in the BIC%s during both healing periods between the groups. H3BO3 seems to be a promising medium for dental implant osseointegration.
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Affiliation(s)
- Nazlı Ayşeşek
- Department of Oral Implantology, Faculty of Dentistry, İstanbul University, Fatih, 34452 İstanbul, Türkiye
| | - Volkan Arısan
- Department of Oral Implantology, Faculty of Dentistry, İstanbul University, Fatih, 34452 İstanbul, Türkiye
- Correspondence:
| | | | - Ayşe Erol
- Department of Physics, Faculty of Science, İstanbul University, Fatih, 34452 İstanbul, Türkiye
| | - Furkan Kuruoğlu
- Department of Physics, Faculty of Science, İstanbul University, Fatih, 34452 İstanbul, Türkiye
| | - Merva Soluk Tekkeşin
- Department of Tumor Pathology, Institute of Oncology, İstanbul University, Fatih, 34452 İstanbul, Türkiye
| | - Selim Ersanlı
- Department of Oral Implantology, Faculty of Dentistry, İstanbul University, Fatih, 34452 İstanbul, Türkiye
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Çiftci Dede E, Korkusuz P, Bilgiç E, Çetinkaya MA, Korkusuz F. Boron Nano-hydroxyapatite Composite Increases the Bone Regeneration of Ovariectomized Rabbit Femurs. Biol Trace Elem Res 2022; 200:183-196. [PMID: 33715074 DOI: 10.1007/s12011-021-02626-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/03/2021] [Indexed: 10/21/2022]
Abstract
Osteoporosis is a systemic metabolic disease defined by a decreased bone mineral density, microarchitectural deterioration, and an increased incidence of fragility fractures that may lead to morbidity and mortality. Boron may stimulate new bone formation and regeneration, when combined with nano-hydroxyapatite. We questioned whether injecting boron-containing nano-hydroxyapatite composites with hyaluronan increased the bone mineral density and new bone formation in osteoporotic rabbit femurs. The regenerative effects of injectable boron-containing nano-hydroxyapatite composites from 6 to 12 weeks, which may prevent osteoporotic femoral fractures, were assessed. Boron-containing (10 μg/ml) nano-hydroxyapatite composites were injected into the intramedullary femoral cavity with hyaluronan. These significantly increased the histomorphometric new bone surface to the total bone surface ratio at 6 and 9 weeks. The micro-tomographic bone volume to the total volume ratio and bone mineral density in osteoporotic rabbit femurs increased when compared to the hyaluronan (p = 0.004, p = 0.004, p = 0.004, p = 0.01, respectively) and the sham-control (p = 0.01, p = 0.004, p = 0.01, p = 0.037, respectively) groups. The boron-containing group had a higher bone mineralization and new bone formation compared to the nano-hydroxyapatite group, although the difference was not statistically significant. These findings reveal that intramedullary injection of boron-containing nano-hydroxyapatite with hyaluronan increases new bone formation and mineralization in ovariectomized rabbit femurs. Boron-containing nano-hydroxyapatite composites are promising tissue engineering biomaterials that may have regenerative potential in preventing primary and/or secondary femoral fractures in osteoporosis patients.
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Affiliation(s)
- Eda Çiftci Dede
- Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara, 06810, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, 06100, Türkiye
| | - Elif Bilgiç
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, 06100, Türkiye
| | - Mehmet Alper Çetinkaya
- Animal Research Center, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, 06100, Turkey
| | - Feza Korkusuz
- Department of Sport Medicine, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, 06100, Türkiye.
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Hakki SS, Götz W, Dundar N, Kayis SA, Malkoc S, Hamurcu M, Basoglu A, Nielsen FH. Borate and boric acid supplementation of drinking water alters teeth and bone mineral density and composition differently in rabbits fed a high protein and energy diet. J Trace Elem Med Biol 2021; 67:126799. [PMID: 34082267 DOI: 10.1016/j.jtemb.2021.126799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/16/2021] [Accepted: 05/26/2021] [Indexed: 11/30/2022]
Abstract
The reported beneficial effects of boron on mineralized tissues in animals and humans vary. Thus, a study was performed to assess whether the variability was the result of different forms of boron supplementation, method of supplementation, and increased adiposity of the rabbit experimental model. Thirty-one female New Zealand White rabbits, (aged 8 months, 2-2.5 kg weight) were fed a grain-based high energy diet containing 11.76 MJ/kg (2850 kcal/kg) and 3.88 mg boron/kg. The rabbits were randomly divided into four treatment groups: Control group was not supplemented with boron (n:7; C), and three groups supplemented with 30 mg boron/L in drinking water in the forms of borax decahydrate (Na2O4B7 10H2O, n:10; BD), borax anhydrous (Na2O4B7, n:7; Bah) or boric acid (H2BO3, n:7; BA). Cone beam micro computed tomographic (micro-CT), histological and elemental analysis was used to evaluate the bones/teeth. Results of the experiments demonstrated that boron supplementation had beneficial effects on mineralized tissue but varied with the type of treatment. Mineral density of the femur was increased by the Bah and BA treatments (p < 0.001), but only BA increased mineral density in the tibia (p = 0.015). In incisor teeth, mineral density of dentin was increased by all boron treatments (p < 0.001), and mineral density of enamel was increased by the BD and Bah treatments. Mineral analysis found that all boron treatments increased the boron concentration in tibia and femur. In the tibia, both the BD and Bah treatments decreased the iron concentration, and the BD treatment decreased the magnesium concentration. Sodium and zinc concentrations in the tibia were decreased by the Bah and BA treatments. The boron treatments did not significantly affect the calcium, copper, molybdenum, potassium phosphorus, and sulfur concentrations. The findings show that boron supplementation can have beneficial effects on mineralized tissues in an animal model with increased adiposity, which is a model of increased inflammatory stress. However, this effect varies with the form of boron supplemented, the method of supplementation, and the mineralized tissue examined.
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Affiliation(s)
- Sema S Hakki
- Selcuk University, Faculty of Dentistry, Department of Periodontology, Konya, 42079, Turkey; Selcuk University, Research Center of Faculty of Dentistry, Konya, Turkey.
| | - Werner Götz
- Bonn University, Medical Faculty, Department of Orthodontics, Oral Biology Lab, Bonn, Germany
| | - Niyazi Dundar
- Selcuk University, Research Center of Faculty of Dentistry, Konya, Turkey
| | - Seyit Ali Kayis
- Bolu Abant İzzet Baysal University, Faculty of Medicine, Department of Biostatistics and Medical İnformatics, Bolu, Turkey
| | - Siddik Malkoc
- Private Practice, Sancakdent Oral Health Center, Istanbul, Turkey
| | - Mehmet Hamurcu
- Selcuk University, Faculty of Agriculture, Soil Science and Plant Nutrition, Konya, Turkey
| | - Abdullah Basoglu
- Selcuk University, Faculty of Veterinary Medicine, Department of Internal Medicine, Konya, Turkey
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Hakki SS, Bozkurt SB, Hakki EE, Nielsen FH. Boron as Boric Acid Induces mRNA Expression of the Differentiation Factor Tuftelin in Pre-Osteoblastic MC3T3-E1 Cells. Biol Trace Elem Res 2021; 199:1534-1543. [PMID: 32594357 DOI: 10.1007/s12011-020-02257-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/15/2020] [Indexed: 01/28/2023]
Abstract
The effects of boron on the formation and maintenance of mineralized structures at the molecular level are still not clearly defined. Thus, a study was conducted using MC3T3-E1 cells to determine whether boron affected mRNA expressions of genes associated with bone/alveolar bone formation around the teethMC3T3-E1 (clone 4) cells were cultured in media treated with boric acid at concentrations of 0, 0.1, 10, 100, or 1000 ng/ml. Total RNAs of each group were isolated on day 3. Gene expression profiles were determined by using RT2 Profiler PCR micro-array that included 84 genes associated with osteogenic differentiation. Tuftelin1 mRNA expression was upregulated by all boron treatments. The upregulation was confirmed by quantitative RT-PCR using the tuftelin probe. While 100 ng/ml had no effect on the integrin-α2 (Itga2) transcript and 1 ng/ml boric acid induced Itga2 mRNA expression (2.1-fold), 0.1, 10, and 1000 ng/ml boric acid downregulated the integrin-α2 gene transcript 2.2-, 1.5-, and 2.1-fold respectively. While 0.1 ng/ml boric acid induced BMP6, increased BMP1r mRNA expression (1.5 fold) was observed in 1000 ng/ml boric acid treatment. The findings suggest that boron affects the regulation of the tuftelin1 gene in osteoblastic cells. Further studies are needed to establish that the beneficial actions of boron on alveolar bone and tooth formation and maintenance include an effect on the expression of the tuftelin1 gene.
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Affiliation(s)
- Sema S Hakki
- Department of Periodontology, Faculty of Dentistry, Selcuk University, 42079, Konya, Turkey.
- Faculty of Dentistry, Research Center, Selcuk University, Konya, Turkey.
| | - Serife Buket Bozkurt
- Faculty of Dentistry, Research Center, Selcuk University, Konya, Turkey
- Faculty of Dentistry, Research Lab of Dental Faculty, Hacettepe University, Ankara, Turkey
| | - Erdogan E Hakki
- Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Molecular Genetics & Biotechnology Laboratories, Selcuk University, Konya, Turkey
| | - Forrest H Nielsen
- Research Nutritionist Consultant, 3000 Belmont Road, Grand Forks, ND, USA
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Rondanelli M, Faliva MA, Peroni G, Infantino V, Gasparri C, Iannello G, Perna S, Riva A, Petrangolini G, Tartara A. Pivotal role of boron supplementation on bone health: A narrative review. J Trace Elem Med Biol 2020; 62:126577. [PMID: 32540741 DOI: 10.1016/j.jtemb.2020.126577] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/26/2020] [Accepted: 06/04/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Boron is a trace element that plays an important role in numerous biological functions, including calcium metabolism, growth and maintenance of bone tissue. However, there are still no precise indications regarding a possible role of boron supplementation, and its amount of supplementation, to maintain bone health. So the aim of this narrative review was to consider the state of the art on the effectiveness of boron supplementation (alone or with other micronutrients) on growth and maintenance of bone in humans through control of calcium, vitamin D and sex steroid hormone metabolism in order to suggest a daily dosage of boron supplementation. MAIN FINDINGS This review included 11 eligible studies: 7 regarding the supplementation with boron alone and 4 regarding supplementation with boron and other nutrients. Despite the number of studies considered being low, the number of subjects studied is high (594) and the results are interesting. CONCLUSIONS The studies considered in this narrative review have evaluated the positive effectiveness on bone, in humans, through control of calcium, vitamin D and sex steroid hormone metabolism, considering a dietary supplementation of 3 mg/day of boron (alone or with other nutrients); this supplementation is demonstrably useful to support bone health (in order to prevent and maintain adequate bone mineral density), also considering the daily dose of 3 mg is much lower than the Upper Level indicated by EFSA in the daily dose of 10 mg.
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Affiliation(s)
- Mariangela Rondanelli
- IRCCS Mondino Foundation, Pavia, 27100, Italy; Department of Public Health, Experimental and Forensic Medicine, Unit of Human and Clinical Nutrition, University of Pavia, Pavia, 27100, Italy.
| | - Milena Anna Faliva
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita'', University of Pavia, Pavia, 27100, Italy.
| | - Gabriella Peroni
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita'', University of Pavia, Pavia, 27100, Italy.
| | - Vittoria Infantino
- Department of Public Health, Experimental and Forensic Medicine, Unit of Human and Clinical Nutrition, University of Pavia, Pavia, 27100, Italy.
| | - Clara Gasparri
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita'', University of Pavia, Pavia, 27100, Italy.
| | - Giancarlo Iannello
- General Management, Azienda di Servizi alla Persona "Istituto Santa Margherita'', Pavia, 27100, Italy.
| | - Simone Perna
- Department of Biology, College of Science, University of Bahrain, 32038 Sakhir, Bahrain.
| | | | | | - Alice Tartara
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita'', University of Pavia, Pavia, 27100, Italy.
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15
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Xiong B, Shirai K, Matsumoto K, Abiko Y, Furuichi Y. The potential of a surface pre-reacted glass root canal dressing for treating apical periodontitis in rats. Int Endod J 2020; 54:255-267. [PMID: 32961600 DOI: 10.1111/iej.13414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 09/14/2020] [Indexed: 12/27/2022]
Abstract
AIM To evaluate the efficacy of a prototype root canal dressing containing surface pre-reacted glass-ionomer (S-PRG) fillers on repairing induced periapical lesions in a rat model. Calcium hydroxide [Ca(OH)2 ] was applied as a comparison in the healing process. METHODOLOGY The pulp chambers of the maxillary first molars in 64 male Wistar rats aged 16 weeks were opened to induce periapical lesions. After 28 days, the mesial canal of each tooth was prepared, irrigated with 2.5% sodium hypochlorite only (control group: irrigation) or followed by the respective dressing [Ca(OH)2 group, irrigation + Ca(OH)2 ; S-PRG group, irrigation + S-PRG] and restored with composite resin for 3 or 7 days (10/group). Four rats with healthy molars were used as blank controls. Descriptive analysis of the periapical radiographs, haematoxylin and eosin staining and immunohistochemical observation was performed 3 and 7 days after treatment. The periapical grey value, CD68 macrophages and osteoclasts (cathepsin-K) were quantified and statistically analysed with Tukey's honest significant difference test. A significant difference was achieved when P values were <0.05. RESULTS S-PRG and Ca(OH)2 dressings were associated with increased periapical grey values and inhibited osteoclast activity at 3 and 7 days; a significant difference in radiographic results and the number of osteoclasts was obtained at 3 and 7 days compared with the control group (P < 0.05). Reparative tissue was observed histologically in the space of the periapical resorbed necrotic area after S-PRG and Ca(OH)2 treatment for 3 and 7 days. The number of macrophages was significantly decreased at 3 and 7 days in the S-PRG and Ca(OH)2 specimens when compared with the controls (P < 0.05). CONCLUSIONS In a rat experimental model, the S-PRG root canal dressing was comparable to Ca(OH)2 in promoting the healing of experimentally induced periapical lesions. S-PRG paste has the potential to be used as an alternative intracanal dressing in teeth with apical periodontitis.
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Affiliation(s)
- B Xiong
- Division of Periodontology and Endodontology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - K Shirai
- Division of Periodontology and Endodontology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - K Matsumoto
- Division of Periodontology and Endodontology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Y Abiko
- Division of Oral Medicine and Pathology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Y Furuichi
- Division of Periodontology and Endodontology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
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16
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Khalil NM, Noureldin MG. Comparison of Single Versus Multiple Low-Level Laser Applications on Bone Formation in Extraction Socket Healing in Rabbits (Histologic and Histomorphometric Study). J Oral Maxillofac Surg 2019; 77:1760-1768. [DOI: 10.1016/j.joms.2019.03.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 01/04/2023]
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Zhang K, Alaohali A, Sawangboon N, Sharpe PT, Brauer DS, Gentleman E. A comparison of lithium-substituted phosphate and borate bioactive glasses for mineralised tissue repair. Dent Mater 2019; 35:919-927. [PMID: 30975482 PMCID: PMC6559152 DOI: 10.1016/j.dental.2019.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/02/2019] [Accepted: 03/18/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Wnt/β-catenin signalling plays important roles in regeneration, particularly in hard tissues such as bone and teeth, and can be regulated by small molecule antagonists of glycogen synthase kinase 3 (GSK3); however, small molecules can be difficult to deliver clinically. Lithium (Li) is also a GSK3 antagonist and can be incorporated into bioactive glasses (BG), which can be used clinically in dental and bone repair applications and tuned to quickly release their constituent ions. METHODS Here, we created phosphate (P)- and borate (B)-based BG that also contained Li (LiPBG and LiBBG) and examined their ion release kinetics and the toxicity of their dissolution ions on mouse 17IA4 dental pulp cells. RESULTS We found that although LiPBG and LiBBG can both quickly release Li at concentrations known to regulate Wnt/β-catenin signalling, the P and B ions they concomitantly release are highly toxic to cells. Only when relatively low concentrations of LiPBG and LiBBG were placed in cell culture medium were their dissolution products non-toxic. However, at these concentrations, LiPBG and LiBBG's ability to regulate Wnt/β-catenin signalling was limited. SIGNIFICANCE These data suggest that identifying a BG composition that can both quickly deliver high concentrations of Li and is non-toxic remains a challenge.
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Affiliation(s)
- Ke Zhang
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Abeer Alaohali
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Nuttawan Sawangboon
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Fraunhoferstr. 6, 07743 Jena, Germany
| | - Paul T Sharpe
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Delia S Brauer
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Fraunhoferstr. 6, 07743 Jena, Germany
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK.
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Gorustovich AA, Nielsen FH. Effects of Nutritional Deficiency of Boron on the Bones of the Appendicular Skeleton of Mice. Biol Trace Elem Res 2019; 188:221-229. [PMID: 30182352 DOI: 10.1007/s12011-018-1499-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 08/28/2018] [Indexed: 01/20/2023]
Abstract
Scientific evidence has shown the nutritional importance of boron (B) in the remodeling and repair of cancellous bone tissue. However, the effects of the nutritional deficiency of B on the cortical bone tissue of the appendicular skeleton have not yet been described. Thus, a study was performed to histomorphometrically evaluate the density of osteocyte lacunae of cortical bone of mouse femora under conditions of nutritional deficiency of B and to analyze the effects of the deficiency on the biomechanical properties of mouse tibiae. Weaning, 21-day-old male Swiss mice were assigned to the following two groups: controls (B+; n = 10) and experimental (B-; n = 10). Control mice were fed a basal diet containing 3 mg B/kg, whereas experimental mice were fed a B-deficient diet containing 0.07 mg B/kg for 9 weeks. The histological and histomorphometric evaluations of the mice fed a B-deficient diet showed a decrease in the density of osteocyte lacunae in the femoral cortical bone tissue and the evaluation of biomechanical properties showed lower bone rigidity in the tibia.
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Affiliation(s)
- Alejandro A Gorustovich
- Interdisciplinary Materials Group-IESIING-UCASAL, INTECIN UBA-CONICET, A4400EDD, Salta, Argentina.
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Gomes KDN, Alves APNN, Dutra PGP, Viana GSDB. Doxycycline induces bone repair and changes in Wnt signalling. Int J Oral Sci 2018; 9:158-166. [PMID: 28960195 PMCID: PMC5709545 DOI: 10.1038/ijos.2017.28] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2017] [Indexed: 12/31/2022] Open
Abstract
Doxycycline (DOX) exhibits anti-inflammatory and MMP inhibitory properties. The objectives of this study were to evaluate the effects of DOX on alveolar bone repair. Controls (CTL) and DOX-treated (10 and 25 mg·kg-1) molars were extracted, and rats were killed 7 or 14 days later. The maxillae were processed and subjected to histological and immunohistochemical assays. Hematoxylin-eosin staining (7th day) revealed inflammation in the CTL group that was partly reversed after DOX treatment. On the 14th day, the CTL group exhibited bone neoformation, conjunctive tissue, re-epithelization and the absence of inflammatory infiltrate. DOX-treated groups exhibited complete re-epithelization, tissue remodelling and almost no inflammation. Picrosirius red staining in the DOX10 group (7th and 14th days) revealed an increased percentage of type I and III collagen fibres compared with the CTL and DOX25 groups. The DOX10 and DOX25 groups exhibited increases in osteoblasts on the 7th and 14th days. However, there were fewer osteoclasts in the DOX10 and DOX25 groups on the 7th and 14th days. Wnt-10b-immunopositive cells increased by 130% and 150% on the 7th and 14th days, respectively, in DOX-treated groups compared with the CTL group. On the 7th day, Dickkopf (Dkk)-1 immunostaining was decreased by 63% and 46% in the DOX10 and DOX25 groups, respectively. On the 14th day, 69% and 42% decreases in immunopositive cells were observed in the DOX10 and DOX25 groups, respectively, compared with the CTL group. By increasing osteoblasts, decreasing osteoclasts, activating Wnt 10b and neutralising Dkk, DOX is a potential candidate for bone repair in periodontal diseases.
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21
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Uluisik I, Karakaya HC, Koc A. The importance of boron in biological systems. J Trace Elem Med Biol 2018; 45:156-162. [PMID: 29173473 DOI: 10.1016/j.jtemb.2017.10.008] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 03/13/2017] [Accepted: 10/17/2017] [Indexed: 12/18/2022]
Abstract
Boron is an essential element for plants and probably essential for human and animal health. Boron has a broad range of physiological effects on biological systems at low concentrations, whereas it is toxic to at high concentrations. Eventhough there are many studies on boron's biological effects and toxicity, more information is needed to understand the mechanisms of its action. The aim of the current work is to review boron's function, transport and toxicity in different biological systems.
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Affiliation(s)
- Irem Uluisik
- Izmir Institute of Technology, Department of Molecular Biology and Genetics, 35430 Urla, Izmir, Turkey
| | - Huseyin Caglar Karakaya
- Izmir Institute of Technology, Department of Molecular Biology and Genetics, 35430 Urla, Izmir, Turkey
| | - Ahmet Koc
- Inonu University, Medical School, Department of Medical Biology and Genetics, Battalgazi, Malatya, Turkey.
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Kanoriya D, Singhal S, Garg V, Pradeep AR, Garg S, Kumar A. Clinical efficacy of subgingivally‐delivered 0.75% boric acid gel as an adjunct to mechanotherapy in chronic periodontitis: A randomized, controlled clinical trial. ACTA ACUST UNITED AC 2017; 9. [DOI: 10.1111/jicd.12271] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 03/07/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Dharmendra Kanoriya
- Department of PeriodontologyGovernment Dental College and Research Institute Bangalore Karnataka India
| | - Sandeep Singhal
- Department of PeriodontologyGovernment Dental College and Research Institute Bangalore Karnataka India
| | - Vibhuti Garg
- Department of PeriodontologyGovernment Dental College and Research Institute Bangalore Karnataka India
| | - Avani R. Pradeep
- Department of PeriodontologyGovernment Dental College and Research Institute Bangalore Karnataka India
| | - Shruti Garg
- Department of PeriodontologyGovernment Dental College and Research Institute Bangalore Karnataka India
| | - Amit Kumar
- Department of Public Health DentistryGovernment Dental College and Research Institute Bangalore Karnataka India
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Ocampo-Néstor AL, Trujillo-Ferrara JG, Abad-García A, Reyes-López C, Geninatti-Crich S, Soriano-Ursúa MA. Boron's journey: advances in the study and application of pharmacokinetics. Expert Opin Ther Pat 2017; 27:203-215. [PMID: 27788608 DOI: 10.1080/13543776.2017.1252750] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Boron-containing compounds (BCCs) are attractive chemical entities in drug development. Some of these compounds have been used in the treatment of human disease, and studies on their pharmacodynamics suggest that they employ multiple forms of activity. However, less is known about the pharmacokinetic profile of these molecules. Areas covered: The herein compiled reported data is presented in accordance with the classical 'ADME' system for identifying the scope of BCCs in the respective fields. Our analysis suggests that these compounds have several distinct ways to move within the human body, and that the specific structural features of each molecule account for its distinct pharmacokinetic profile. These insights should be useful for designing BCCs with a desired effect. Expert opinion: Increasing knowledge about the pharmacokinetics of BCCs is providing a broader understanding about the design of new release systems and potential drugs, as well as probable protein transporters that could be related to key roles in physiological processes. These transporters may be involved in sodium transport, hormone release and regulation of the cell cycle. The shared features among groups of BCCs are being identified in order to apply these insights to the design of advantageous compounds.
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Affiliation(s)
- Ana L Ocampo-Néstor
- a Departamentos de Fisiología y Bioquímica , Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n , México City , Del. Miguel Hidalgo , México
| | - José G Trujillo-Ferrara
- a Departamentos de Fisiología y Bioquímica , Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n , México City , Del. Miguel Hidalgo , México
| | - Antonio Abad-García
- a Departamentos de Fisiología y Bioquímica , Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n , México City , Del. Miguel Hidalgo , México
| | - Cynthia Reyes-López
- a Departamentos de Fisiología y Bioquímica , Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n , México City , Del. Miguel Hidalgo , México
| | - Simonetta Geninatti-Crich
- b Dipartimento di Biotecnologie Molecolari e Scienze per la Salute , Centro Imaging Molecolare. Università di Torino , Torino , Italy
| | - Marvin A Soriano-Ursúa
- a Departamentos de Fisiología y Bioquímica , Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional. Plan de San Luis y Díaz Mirón s/n , México City , Del. Miguel Hidalgo , México
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Atila A, Halici Z, Cadirci E, Karakus E, Palabiyik SS, Ay N, Bakan F, Yilmaz S. Study of the boron levels in serum after implantation of different ratios nano-hexagonal boron nitride–hydroxy apatite in rat femurs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:1082-9. [DOI: 10.1016/j.msec.2015.09.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/29/2015] [Accepted: 09/08/2015] [Indexed: 12/24/2022]
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Demirci S, Doğan A, Karakuş E, Halıcı Z, Topçu A, Demirci E, Sahin F. Boron and Poloxamer (F68 and F127) Containing Hydrogel Formulation for Burn Wound Healing. Biol Trace Elem Res 2015; 168:169-80. [PMID: 25893366 DOI: 10.1007/s12011-015-0338-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/08/2015] [Indexed: 01/04/2023]
Abstract
Burn injuries, the most common and destructive forms of wounds, are generally accompanied with life-threatening infections, inflammation, reduced angiogenesis, inadequate extracellular matrix production, and lack of growth factor stimulation. In the current study, a new antimicrobial carbopol-based hydrogel formulated with boron and pluronic block copolymers was evaluated for its healing activity using in vitro cell culture techniques and an experimental burn model. Cell viability, gene expression, and wound healing assays showed that gel formulation increased wound healing potential. In vitro tube-like structure formation and histopathological examinations revealed that gel not only increased wound closure by fibroblastic cell activity, but also induced vascularization process. Moreover, gel formulation exerted remarkable antimicrobial effects against bacteria, yeast, and fungi. Migration, angiogenesis, and contraction-related protein expressions including collagen, α-smooth muscle actin, transforming growth factor-β1, vimentin, and vascular endothelial growth factor were considerably enhanced in gel-treated groups. Macrophage-specific antigen showed an oscillating expression at the burn wounds, indicating the role of initial macrophage migration to the wound site and reduced inflammation phase. This is the first study indicating that boron containing hydrogel is able to heal burn wounds effectively. The formulation promoted burn wound healing via complex mechanisms including stimulation of cell migration, growth factor expression, inflammatory response, and vascularization.
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Affiliation(s)
- Selami Demirci
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi, Istanbul, Turkey
| | - Ayşegül Doğan
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi, Istanbul, Turkey
| | - Emre Karakuş
- Department of Pharmacology and Toxicology, Ataturk University School of Veterinary Medicine, Erzurum, Turkey
| | - Zekai Halıcı
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Atila Topçu
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Elif Demirci
- Department of Pathology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Fikrettin Sahin
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi, Istanbul, Turkey.
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Gölge UH, Kaymaz B, Arpaci R, Kömürcü E, Göksel F, Güven M, Güzel Y, Cevizci S. Effects of Boric Acid on Fracture Healing: An Experimental Study. Biol Trace Elem Res 2015; 167:264-71. [PMID: 25846213 DOI: 10.1007/s12011-015-0326-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 03/25/2015] [Indexed: 10/23/2022]
Abstract
Boric acid (BA) has positive effects on bone tissue. In this study, the effects of BA on fracture healing were evaluated in an animal model. Standard closed femoral shaft fractures were created in 40 male Sprague-Dawley rats under general anesthesia. The rats were allocated into five groups (n = 8 each): group 1, control with no BA; groups 2 and 3, oral BA at doses of 4 and 8 mg/kg/day, respectively; group 4, local BA (8 mg/kg); and group 5, both oral and local BA (8 mg/kg/day orally and 8 mg/kg locally). After closed fracture creation, the fracture line was opened with a mini-incision, and BA was locally administered to the fracture area in groups 4 and 5. In groups 2, 3, and 5, BA was administered by gastric gavage daily until sacrifice. The rats were evaluated by clinical, radiological, and histological examinations. The control group (group 1) significantly differed from the local BA-exposed groups (groups 4 and 5) in the clinical evaluation. Front-rear and lateral radiographs revealed significant differences between the local BA-exposed groups and the control and other groups (p < 0.05). Clinical and radiological evaluations demonstrated adequate agreement between observers. The average histological scores significantly differed across groups (p = 0.007) and were significantly higher in groups 4 and 5 which were the local BA (8 mg/kg) and both oral and local BA (8 mg/kg/day orally and 8 mg/kg locally), respectively, compared to the controls. This study suggests that BA may be useful in fracture healing. Further research is required to demonstrate the most effective local dosage and possible use of BA-coated implants.
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Affiliation(s)
- Umut Hatay Gölge
- Department of Orthopaedics and Traumatology, School of Medicine, Çanakkale Onsekiz Mart University, 17000, Çanakkale, Turkey,
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Dermience M, Lognay G, Mathieu F, Goyens P. Effects of thirty elements on bone metabolism. J Trace Elem Med Biol 2015; 32:86-106. [PMID: 26302917 DOI: 10.1016/j.jtemb.2015.06.005] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 05/07/2015] [Accepted: 06/19/2015] [Indexed: 01/19/2023]
Abstract
The human skeleton, made of 206 bones, plays vital roles including supporting the body, protecting organs, enabling movement, and storing minerals. Bones are made of organic structures, intimately connected with an inorganic matrix produced by bone cells. Many elements are ubiquitous in our environment, and many impact bone metabolism. Most elements have antagonistic actions depending on concentration. Indeed, some elements are essential, others are deleterious, and many can be both. Several pathways mediate effects of element deficiencies or excesses on bone metabolism. This paper aims to identify all elements that impact bone health and explore the mechanisms by which they act. To date, this is the first time that the effects of thirty minerals on bone metabolism have been summarized.
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Affiliation(s)
- Michael Dermience
- University of Liège - Gembloux Agro Bio Tech, Unit Analyzes, Quality, Risks, Laboratory of Analytical Chemistry, Passage des Déportés, 2, B-5030 Gembloux, Belgium.
| | - Georges Lognay
- University of Liège - Gembloux Agro Bio Tech, Unit Analyzes, Quality, Risks, Laboratory of Analytical Chemistry, Passage des Déportés, 2, B-5030 Gembloux, Belgium.
| | - Françoise Mathieu
- Kashin-Beck Disease Fund asbl-vzw, Rue de l'Aunee, 6, B-6953 Forrieres, Belgium.
| | - Philippe Goyens
- Kashin-Beck Disease Fund asbl-vzw, Rue de l'Aunee, 6, B-6953 Forrieres, Belgium; Department and Laboratory of Pediatric, Free Universities of Brussels, Brussels, Belgium.
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Mohn CE, Steimetz T, Surkin PN, Fernandez-Solari J, Elverdin JC, Guglielmotti MB. Effects of saliva on early post-tooth extraction tissue repair in rats. Wound Repair Regen 2015; 23:241-50. [DOI: 10.1111/wrr.12271] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Claudia E. Mohn
- Department of Physiology; School of Dentistry, University of Buenos Aires; Argentina
- National Council for Scientific and Technological Research; Argentina
| | - Tammy Steimetz
- Department of Oral Pathology, School of Dentistry; University of Buenos Aires; Buenos Aires Argentina
| | - Pablo N. Surkin
- Department of Physiology; School of Dentistry, University of Buenos Aires; Argentina
| | - Javier Fernandez-Solari
- Department of Physiology; School of Dentistry, University of Buenos Aires; Argentina
- National Council for Scientific and Technological Research; Argentina
| | - Juan C. Elverdin
- Department of Physiology; School of Dentistry, University of Buenos Aires; Argentina
| | - María B. Guglielmotti
- National Council for Scientific and Technological Research; Argentina
- Department of Oral Pathology, School of Dentistry; University of Buenos Aires; Buenos Aires Argentina
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Apdik H, Doğan A, Demirci S, Aydın S, Şahin F. Dose-dependent Effect of Boric Acid on Myogenic Differentiation of Human Adipose-derived Stem Cells (hADSCs). Biol Trace Elem Res 2015; 165:123-30. [PMID: 25637568 DOI: 10.1007/s12011-015-0253-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/22/2015] [Indexed: 01/19/2023]
Abstract
Boron, a vital micronutrient for plant metabolism, is not fully elucidated for embryonic and adult body development, and tissue regeneration. Although optimized amount of boron supplement has been shown to be essential for normal gestational development in zebrafish and frog and beneficial for bone regeneration in higher animals, effects of boron on myogenesis and myo-regeneration remains to be solved. In the current study, we investigated dose-dependent activity of boric acid on myogenic differentiation of human adipose-derived stem cells (hADSCs) using immunocytochemical, gene, and protein expression analysis. The results revealed that while low- (81.9 μM) and high-dose (819.6 μM) boron treatment increased myogenic gene expression levels such as myosin heavy chain (MYH), MyoD, myogenin, and desmin at day 4 of differentiation, high-dose treatment decreased myogenic-related gene and protein levels at day 21 of differentiation, confirmed by immunocytochemical analysis. The findings of the study present not only an understanding of boron's effect on myogenic differentiation but also an opportunity for the development of scaffolds to be used in skeletal tissue engineering and supplements for embryonic muscle growth. However, fine dose tuning and treatment period arranging are highly warranted as boron treatment over required concentrations and time might result in detrimental outcomes to myogenesis and myo-regeneration.
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Affiliation(s)
- Hüseyin Apdik
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 34755, Kayışdağı, Istanbul, Turkey
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Gümüşderelioğlu M, Tunçay EÖ, Kaynak G, Demirtaş TT, Aydın ST, Hakkı SS. Encapsulated boron as an osteoinductive agent for bone scaffolds. J Trace Elem Med Biol 2015; 31:120-8. [PMID: 26004902 DOI: 10.1016/j.jtemb.2015.03.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/17/2015] [Accepted: 03/26/2015] [Indexed: 11/17/2022]
Abstract
The aim of this study was to develop boron (B)-releasing polymeric scaffold to promote regeneration of bone tissue. Boric acid-doped chitosan nanoparticles with a diameter of approx. 175 nm were produced by tripolyphosphate (TPP)-initiated ionic gelation process. The nanoparticles strongly attached via electrostatic interactions into chitosan scaffolds produced by freeze-drying with approx. 100 μm pore diameter. According to the ICP-OES results, following first 5h initial burst release, fast release of B from scaffolds was observed for 24h incubation period in conditioned medium. Then, slow release of B was performed over 120 h. The results of the cell culture studies proved that the encapsulated boron within the scaffolds can be used as an osteoinductive agent by showing its positive effects on the proliferation and differentiation of MC3T3-E1 preosteoblastic cells.
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Affiliation(s)
| | - Ekin Ö Tunçay
- Hacettepe University, Department of Bioengineering, Ankara, Turkey
| | - Gökçe Kaynak
- Hacettepe University, Department of Bioengineering, Ankara, Turkey
| | - Tolga T Demirtaş
- Hacettepe University, Department of Bioengineering, Ankara, Turkey
| | - Seda Tığlı Aydın
- Bülent Ecevit University, Department of Biomedical Engineering, Zonguldak, Turkey
| | - Sema S Hakkı
- Selcuk University, Faculty of Dentistry, Department of Periodontology, Konya, Turkey
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Hakki SS, Dundar N, Kayis SA, Hakki EE, Hamurcu M, Baspinar N, Basoglu A, Nielsen FH, Götz W. Dietary boron does not affect tooth strength, micro-hardness, and density, but affects tooth mineral composition and alveolar bone mineral density in rabbits fed a high-energy diet. J Trace Elem Med Biol 2015; 29:208-15. [PMID: 25468191 DOI: 10.1016/j.jtemb.2014.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/10/2014] [Accepted: 10/15/2014] [Indexed: 01/15/2023]
Abstract
The objective of this study was to determine whether dietary boron (B) affects the strength, density and mineral composition of teeth and mineral density of alveolar bone in rabbits with apparent obesity induced by a high-energy diet. Sixty female, 8-month-old, New Zealand rabbits were randomly assigned for 7 months into five groups as follows: (1) control 1, fed alfalfa hay only (5.91 MJ/kg and 57.5 mg B/kg); (2) control 2, high energy diet (11.76 MJ and 3.88 mg B/kg); (3) B10, high energy diet + 10 mg B gavage/kg body weight/96 h; (4) B30, high energy diet + 30 mg B gavage/kg body weight/96 h; (5) B50, high energy diet + 50 mg B gavage/kg body weight/96 h. Maxillary incisor teeth of the rabbits were evaluated for compression strength, mineral composition, and micro-hardness. Enamel, dentin, cementum and pulp tissue were examined histologically. Mineral densities of the incisor teeth and surrounding alveolar bone were determined by using micro-CT. When compared to controls, the different boron treatments did not significantly affect compression strength, and micro-hardness of the teeth, although the B content of teeth increased in a dose-dependent manner. Compared to control 1, B50 teeth had decreased phosphorus (P) concentrations. Histological examination revealed that teeth structure (shape and thickness of the enamel, dentin, cementum and pulp) was similar in the B-treated and control rabbits. Micro CT evaluation revealed greater alveolar bone mineral density in B10 and B30 groups than in controls. Alveolar bone density of the B50 group was not different than the controls. Although the B treatments did not affect teeth structure, strength, mineral density and micro-hardness, increasing B intake altered the mineral composition of teeth, and, in moderate amounts, had beneficial effects on surrounding alveolar bone.
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Haro Durand LA, Vargas GE, Romero NM, Vera-Mesones R, Porto-López JM, Boccaccini AR, Zago MP, Baldi A, Gorustovich A. Angiogenic effects of ionic dissolution products released from a boron-doped 45S5 bioactive glass. J Mater Chem B 2014; 3:1142-1148. [PMID: 32261993 DOI: 10.1039/c4tb01840k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In regenerative medicine of vascularized tissues, there is a great interest in the use of biomaterials that are able to stimulate angiogenesis, a process necessary for rapid revascularization to allow the transport and exchange of oxygen, nutrients, growth factors and cells that take part in tissue repair and/or regeneration. An increasing number of publications have shown that bioactive glasses stimulate angiogenesis. Because it has been established that boron (B) may play a role in angiogenesis, the aim of this study was to assess the in vivo angiogenic effects of the ionic dissolution products that from a bioactive glass (BG) in the 45S5 system doped with 2 wt% B2O3 (45S5.2B). The pro-angiogenic capacity of 45S5.2B BG was assessed on the vasculature of the embryonic quail chorioallantoic membrane (CAM). Ionic dissolution products from 45S5.2B BG increased angiogenesis. This is quantitatively evidenced by the greater expression of integrin αvβ3 and higher vascular density in the embryonic quail CAM. The response observed at 2 and 5 days post-treatment was equivalent to that achieved by applying 10 µg mL-1 of basic fibroblast growth factor. These results show that the ionic dissolution products released from the bioactive glass 45S5.2B stimulate angiogenesis in vivo. The effects observed are attributed to the presence the ionic dissolution products, which contained 160 ± 10 µM borate.
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Affiliation(s)
- Luis A Haro Durand
- Interdisciplinary Materials Group-IESIING-UCASAL, INTECIN UBA-CONICET, Campus Castañares, A4400EDD, Salta, Argentina.
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Boron containing poly-(lactide-co-glycolide) (PLGA) scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:246-53. [DOI: 10.1016/j.msec.2014.08.035] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/24/2014] [Accepted: 08/08/2014] [Indexed: 12/29/2022]
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Abstract
In vitro, animal, and human experiments have shown that boron is a bioactive element in nutritional amounts that beneficially affects bone growth and central nervous system function, alleviates arthritic symptoms, facilitates hormone action and is associated with a reduced risk for some types of cancer. The diverse effects of boron suggest that it influences the formation and/or activity of substances that are involved in numerous biochemical processes. Several findings suggest that this influence is through the formation of boroesters in biomolecules containing cis-hydroxyl groups. These biomolecules include those that contain ribose (e.g., S-adenosylmethionine, diadenosine phosphates, and nicotinamide adenine dinucleotide). In addition, boron may form boroester complexes with phosphoinositides, glycoproteins, and glycolipids that affect cell membrane integrity and function. Both animal and human data indicate that an intake of less than 1.0mg/day inhibits the health benefits of boron. Dietary surveys indicate such an intake is not rare. Thus, increasing boron intake by consuming a diet rich in fruits, vegetables, nuts and pulses should be recognized as a reasonable dietary recommendation to enhance health and well-being.
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Affiliation(s)
- Forrest H Nielsen
- U.S. Department of Agriculture, Agricultural Research Service,(1) Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA.
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Aras MH, Sezer U, Erkilic S, Demir T, Dagli SN. Effect of dietary boron on 5-fluorouracil induced oral mucositis in rats. Eur J Dent 2014; 7:310-314. [PMID: 24926211 PMCID: PMC4053620 DOI: 10.4103/1305-7456.115415] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Objective: The aim of this study was to evaluate the effect of boron on 5-fluorouracil (5-FU)–induced oral mucositis in rats. Materials and Methods: Sixty-four male Wistar albino rats were injected with 5-FU on days 1 and 3. The right cheek pouch mucosa was scratched with the tip of an 18-G needle, dragged twice in a linear movement, on days 3 and 5. The animals were randomly divided into two groups of 32: boron group (BG) and control group (CG). Rats in the CG did not receive any treatment, whereas the others were fed boron (3 mg·kg-1·day-1) by gavage. The animals were sacrificed on day 3 (n = 8), 6 (n = 8), 9 (n = 8), and 12 (n = 8), and the cheek pouch was removed for histopathological analysis. Results: On day 3, both groups showed necrosis and active inflammation, but the inflammation was mild in CG and moderate in BG. On day 6, both BG and CG showed necrosis; in the CG, there was moderate inflammation, and in the BG, there was severe inflammation and granulation tissue around the necrotic area. On day 9, re-epithelization began in both groups, and there were no differences between groups. Re-epithelization was complete in both groups on day 12. Conclusion: We found no beneficial effect of boron in healing oral mucositis. Additional research is warranted to elucidate the pathogenic inflammatory mechanisms involved in mucositis and the prophylactic and therapeutic roles of antioxidants.
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Affiliation(s)
- Mutan Hamdi Aras
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkiye
| | - Ufuk Sezer
- Department of Periodontology, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkiye
| | - Suna Erkilic
- Department of Pathology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkiye
| | - Tuncer Demir
- Department of Physiology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkiye
| | - Seyda Nur Dagli
- Department of Physiology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkiye
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Haro Durand LA, Góngora A, Porto López JM, Boccaccini AR, Zago MP, Baldi A, Gorustovich A. In vitro endothelial cell response to ionic dissolution products from boron-doped bioactive glass in the SiO2–CaO–P2O5–Na2O system. J Mater Chem B 2014; 2:7620-7630. [DOI: 10.1039/c4tb01043d] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
As it has been established that boron (B) may perform functions in angiogenesis and osteogenesis, the controlled and localized release of B ions from bioactive glasses (BGs) is expected to provide a promising therapeutic alternative for regenerative medicine of vascularized tissues, such as bone.
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Affiliation(s)
- Luis A. Haro Durand
- Interdisciplinary Materials Group-IESIING-UCASAL
- INTECIN UBA-CONICET
- Salta, Argentina
- Department of Pathology and Molecular Pharmacology
- IByME-CONICET
| | - Adrián Góngora
- Department of Pathology and Molecular Pharmacology
- IByME-CONICET
- Buenos Aires, Argentina
| | - José M. Porto López
- Research Institute for Materials Science and Technology
- INTEMA-CONICET
- Mar del Plata, Argentina
| | - Aldo R. Boccaccini
- Institute of Biomaterials
- Department of Materials Science and Engineering
- University of Erlangen-Nuremberg
- 91058 Erlangen, Germany
| | - M. Paola Zago
- Institute of Experimental Pathology
- IPE-CONICET
- Salta, Argentina
| | - Alberto Baldi
- Department of Pathology and Molecular Pharmacology
- IByME-CONICET
- Buenos Aires, Argentina
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Martín AE, del R Pani M, Holgado NR, López Miranda LI, Meheris HE, Garat JA. Facial development disorders due to inhibition to endochondral ossification of mandibular condyle process caused by malnutrition. Angle Orthod 2013; 84:473-8. [PMID: 24160994 DOI: 10.2319/042013-307.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To analyze the effect of protein restriction on histomorphometric parameters of bone remodeling in mandibular condyle process and its possible influence in facial development in growing rats. MATERIALS AND METHODS Wistar rats weaned at the age of 21 days were assigned to one of the following groups: control (fed a regular hard diet ad libitum) and protein restricted (PR) (fed a hard diet lacking in protein ad libitum). The animals were euthanized on day 35 after the onset of the experiment. Mandibles were resected, fixed in 10% formalin, hemisected at the symphysis, and then radiographed in order to perform cephalometric studies of the condylar process length and the height of the lower alveolar process. Mandibles were then processed for light microscopy, and histomorphometric determinations were performed on histologic sections of the condylar process subchondral bone. RESULTS The PR group showed a significantly lower body weight than control group at the end of the experiment. The length of the condylar process was lower in the PR group; however, the diet used in this study did not affect the height of the lower alveolar process. The histomorphometric analysis showed that the PR group exhibited a statistically significant decrease in bone formation and bone volume in condylar process subchondral bone. CONCLUSION Protein restriction inhibits bone formation and longitudinal growth in the mandibular condylar process. This result suggest that protein restriction can alter normal facial development.
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Affiliation(s)
- Adrián E Martín
- a Assistant Professor, Department of Histology, School of Dentistry, National University of Tucumán, Tucumán, Argentina
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Sağlam M, Hatipoğlu M, Köseoğlu S, Esen HH, Kelebek S. Boric acid inhibits alveolar bone loss in rats by affecting RANKL and osteoprotegerin expression. J Periodontal Res 2013; 49:472-9. [PMID: 24033134 DOI: 10.1111/jre.12126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE The goal of the present study was to evaluate the effects of systemic boric acid on the levels of expression of RANKL and osteoprotegerin (OPG) and on histopathologic and histometric changes in a rat periodontitis model. MATERIAL AND METHODS Twenty-four Wistar rats were divided into three groups of eight animals each: nonligated (NL); ligature only (LO); and ligature plus treatment with boric acid (BA) (3 mg/kg per day for 11 d). A 4/0 silk suture was placed in a subgingival position around the mandibular right first molars; after 11 d the rats were killed, and alveolar bone loss in the first molars was histometrically determined. Periodontal tissues were examined histopathologically to assess the differences among the study groups. RANKL and OPG were detected immunohistochemically. RESULTS Alveolar bone loss was significantly higher in the LO group than in the BA and NL groups (p < 0.05). The number of inflammatory infiltrate and osteoclasts in the LO group was significantly higher than that in the NL and BA groups (p < 0.05). The numbers of osteoblasts in LO and BA groups were significantly higher compared with NL group (p < 0.05). There were significantly more RANKL-positive cells in the LO group than in the BA and NL groups (p < 0.05). There was a higher number of OPG-positive cells in the BA group than in the LO and NL groups (p < 0.05). CONCLUSION The present study shows that systemic administration of boric acid may reduce alveolar bone loss by affecting the RANKL/OPG balance in periodontal disease in rats.
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Affiliation(s)
- M Sağlam
- Department of Periodontology, School of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
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Hakki SS, Dundar N, Kayis SA, Hakki EE, Hamurcu M, Kerimoglu U, Baspinar N, Basoglu A, Nielsen FH. Boron enhances strength and alters mineral composition of bone in rabbits fed a high energy diet. J Trace Elem Med Biol 2013; 27:148-53. [PMID: 22944583 DOI: 10.1016/j.jtemb.2012.07.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 05/02/2012] [Accepted: 07/02/2012] [Indexed: 11/19/2022]
Abstract
An experiment was performed to determine whether boron had a beneficial effect on bone strength and composition in rabbits with apparent adiposity induced by a high energy diet. Sixty female New Zealand rabbits, aged 8 months, were randomly divided into five groups with the following treatments for seven months: control 1, fed alfalfa hay only (5.91 MJ/kg); control 2, high energy diet (11.76 MJ and 3.88 mg boron/kg); B10, high energy diet+10 mg/kg body weight boron gavage/96 h; B30, high energy diet+30 mg/kg body weight boron gavage/96 h; B50, high energy diet+50mg/kg body weight boron gavage/96 h. Bone boron concentrations were lowest in rabbits fed the high energy diet without boron supplementation, which suggested an inferior boron status. Femur maximum breaking force was highest in the B50 rabbits. Tibia compression strength was highest in B30 and B50 rabbits. All boron treatments significantly increased calcium and magnesium concentrations, and the B30 and B50 treatments increased the phosphorus concentration in tibia of rabbits fed the high energy diet. The B30 treatment significantly increased calcium, phosphorus and magnesium concentrations in femur of rabbits fed the high energy diet. Principal component analysis of the tibia minerals showed that the three boron treatments formed a separate cluster from controls. Discriminant analysis suggested that the concentrations of the minerals in femur could predict boron treatment. The findings indicate boron has beneficial effects on bone strength and mineral composition in rabbits fed a high energy diet.
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Affiliation(s)
- Sema S Hakki
- Selcuk University, Faculty of Dentistry, Department of Periodontology, Konya, Turkey.
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Manrique N, Pereira CCS, Garcia LMG, Micaroni S, Carvalho AAFD, Perri SHV, Okamoto R, Sumida DH, Antoniali C. Alveolar bone healing process in spontaneously hypertensive rats (SHR). A radiographic densitometry study. J Appl Oral Sci 2012; 20:222-7. [PMID: 22666841 PMCID: PMC3894767 DOI: 10.1590/s1678-77572012000200017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Accepted: 01/18/2011] [Indexed: 11/22/2022] Open
Abstract
UNLABELLED Hypertension is one of the most important public health problems worldwide. If undiagnosed or untreated, this pathology represents a systemic risk factor and offers unfavorable conditions for dental treatments, especially those requiring bone healing. OBJECTIVES The purpose of this study was to demonstrate, by analysis of bone mineral density (BMD), that the alveolar bone healing process is altered in spontaneously hypertensive rats (SHRs). MATERIAL AND METHODS Wistar rats and SHRs were submitted to extraction of the upper right incisor and were euthanized 7, 14, 21, 28 and 42 days after surgery. Right maxillae were collected, radiographed and analyzed using Digora software. BMD was expressed as minimum (min), middle (med) and maximum (max) in the medium (MT) and apical (AT) thirds of the dental alveolus. RESULTS The results were compared across days and groups. Wistar showed difference in med and max BMD in the MT between 7 and 28 and also between 14 and 28 days. The AT exhibited significant difference in med and min BMD between 7 and 28 days, as well as difference in min BMD between 28 and 42 days. SHRs showed lower med BMD in the MT at 28 days when compared to 21 and 42 days. Differences were observed across groups in med and min BMD at day 28 in the MT and AT; and in max BMD at 14, 21 and 42 days in the MT. CONCLUSIONS These results suggest that the alveolar bone healing process is delayed in SHRs comparing with Wistar rats.
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Affiliation(s)
- Natalia Manrique
- Department of Pediatric and Community Dentistry, School of Dentistry of Araçatuba, Univ. Estadual Paulista, Araçatuba, SP, Brazil
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Ghanizadeh G, Babaei M, Naghii MR, Mofid M, Torkaman G, Hedayati M. The effect of supplementation of calcium, vitamin D, boron, and increased fluoride intake on bone mechanical properties and metabolic hormones in rat. Toxicol Ind Health 2012; 30:211-7. [DOI: 10.1177/0748233712452775] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Evidence indicates that optimal nutrition plays a role in bone formation and maintenance. Besides major components of mineralization such as calcium, phosphorus, and vitamin D, other nutrients like boron and fluoride have beneficial role, too. In this study, 34 male Wistar rats were divided into five groups: control diet, fluoride, fluoride + boron, fluoride + calcium + vitamin D, and flouride + boron + calcium + vitamin D. Boron equal to 1.23 mg, calcium and vitamin D equal to 210 mg + 55 IU and fluoride equal to 0.7 mg/rat/day was added to their drinking water for 8 weeks. Plasma blood samples and bones were collected. Findings are evidence that fluoride + boron intake revealed significant positive effects on bone mechanical properties and bone metabolic hormones. These findings suggest that combined intake of these two elements has beneficial effects on bone stiffness and breaking strength comparing to even calcium + vitamin D supplementation. This evidence dealing with health problems related to bone and skeletal system in humans should justify further investigation of the role of boron and fluoride with other elements in relation to bone.
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Affiliation(s)
- G Ghanizadeh
- Environmental Health Group, Baqiyatallah University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Babaei
- Nutrition Group, Health School, Baqiyatallah University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Mohammad Reza Naghii
- Nutrition Group, Health School, Baqiyatallah University of Medical Sciences, Tehran, Islamic Republic of Iran
- Exercise Physiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Mofid
- Department of Anatomy, Baqiyatallah University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - G Torkaman
- Department of Physical Therapy, Biomechanical Research Laboratory, Tarbiat Modares University, Tehran, Islamic Republic of Iran
| | - M Hedayati
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
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Hunt CD. Dietary boron: progress in establishing essential roles in human physiology. J Trace Elem Med Biol 2012; 26:157-60. [PMID: 22658717 DOI: 10.1016/j.jtemb.2012.03.014] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 03/11/2012] [Indexed: 11/20/2022]
Abstract
This review summarizes the progress made in establishing essential roles for boron in human physiology and assesses that progress in view of criteria for essentiality of elements. The evidence to date suggests that humans and at least some higher animals may use boron to support normal biological functions. These include roles in calcium metabolism, bone growth and maintenance, insulin metabolism, and completion of the life cycle. The biochemical mechanisms responsible for these effects are poorly understood but the nature of boron biochemistry suggests further characterization of the cell signaling molecules capable of complexing with boron. Such characterization may provide insights into the biochemical function(s) of boron in humans.
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Effects of boric acid on experimental periodontitis and alveolar bone loss in rats. Arch Oral Biol 2012; 57:60-5. [DOI: 10.1016/j.archoralbio.2011.07.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 06/06/2011] [Accepted: 07/28/2011] [Indexed: 11/24/2022]
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Nielsen FH, Meacham SL. Growing Evidence for Human Health Benefits of Boron. J Evid Based Complementary Altern Med 2011. [DOI: 10.1177/2156587211407638] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Growing evidence from a variety of experimental models shows that boron is a bioactive and beneficial (perhaps essential) element for humans. Reported beneficial actions of boron include arthritis alleviation or risk reduction, bone growth and maintenance, central nervous system function, cancer risk reduction, hormone facilitation, and immune response, inflammation, and oxidative stress modulation. The diverse effects of boron indicate that it influences the formation and/or activity of an entity that is involved in many biochemical processes. Formation of boroesters with the ribose moiety of compounds involved in numerous reactions, such as S-adenosylmethionine and oxidized nicotinamide adenine dinucleotide (NAD+) might be the reason for boron bioactivity. Both animal and human data suggest that boron intakes should be >1.0 mg/d. Many people consume less than this amount. Thus, a low boron intake should be considered a health concern, which can be prevented by diets rich in fruits, vegetables, nuts, and pulses.
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Affiliation(s)
- Forrest H. Nielsen
- USDA, ARS, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA
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Hakki SS, Bozkurt BS, Hakki EE. Boron regulates mineralized tissue-associated proteins in osteoblasts (MC3T3-E1). J Trace Elem Med Biol 2010; 24:243-50. [PMID: 20685097 DOI: 10.1016/j.jtemb.2010.03.003] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2009] [Revised: 03/31/2010] [Accepted: 03/31/2010] [Indexed: 12/31/2022]
Abstract
The aim of this study was to determine the effects of boron (B) on the cell-survival, proliferation, mineralization and mRNA expression of mineralized tissue-associated proteins. Additionally, determination of the effects of B on the BMP-4, -6 and -7 protein levels of pre-osteoblastic cells (MC3T3-E1) was also intended. The effects of B (pH 7.0) concentrations (0, 0.1, 1, 10, 100, 1000, 2000, 4000, 8000 and 10,000 ng/ml) on the survival of the cells were evaluated at 24 and 96 hrs with MTT assay. To evaluate the proliferation in long term, MC3T3-E1 cells were treated with different concentrations of B (0, 0.1, 1, 10, 100 and 1000 ng/ml) and were counted on days 2, 5, and 14. While in short term, decreased cell survival rate was observed at 1000 ng/ml and above, at long term no statistically significant difference was detected in different B concentrations applied. Slight decreases at the proliferation of the B-treated groups were determined on days 5 and 14 but one-way analysis of variance revealed that the difference was statistically insignificant. In mineralization assay, increased mineralized nodules were apparently observed in B treatment (1 and 10 ng/ml concentrations) groups. Based on quantitative RT-PCR results, remarkable regulation in favor of osteoblastic function for Collagen type I (COL I), Osteopontin (OPN), Bone Sialoprotein (BSP), Osteocalcin (OCN) and RunX2 mRNA expressions were observed in B treatment groups in comparison with untreated control groups. Increased BMP-4, -6 and -7 protein levels were detected at 0.1, 1, 10 and 100 ng/ml B concentrations. Results of the study suggest that at the molecular level B displays important roles on bone metabolism and may find novel usages at the regenerative medicine.
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Affiliation(s)
- Sema S Hakki
- Selcuk University, Faculty of Dentistry, Department of Periodontology, Konya, Turkey.
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Haro Durand LA, Mesones RV, Nielsen FH, Gorustovich AA. Histomorphometric and microchemical characterization of maturing dental enamel in rats fed a boron-deficient diet. Biol Trace Elem Res 2010; 135:242-52. [PMID: 19756402 DOI: 10.1007/s12011-009-8512-9] [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: 07/28/2009] [Accepted: 08/25/2009] [Indexed: 10/20/2022]
Abstract
Few reports are available in the literature on enamel formation under nutritional deficiencies. Thus, we performed a study to determine the effects of boron (B) deficiency on the maturing dental enamel, employing the rat continuously erupting incisor as the experimental model. Male Wistar rats, 21 days old, were used throughout. They were divided into two groups, each containing ten animals: +B (adequate; 3-mg B/kg diet) and -B (boron deficient; 0.07-mg B/kg diet). The animals were maintained on their respective diets for 14 days and then euthanized. The mandibles were resected, fixed, and processed for embedding in paraffin and/or methyl methacrylate. Oriented histological sections of the continuously erupting incisor were obtained at the level of the mesial root of the first molar, allowing access to the maturation zone of the developing enamel. Dietary treatment did not affect food intake and body weight. Histomorphometric evaluation using undecalcified sections showed a reduction in enamel thickness (hypoplasia), whereas microchemical characterization by energy-dispersive X-ray spectrometry did not reveal alterations in enamel mineralization.
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Affiliation(s)
- Luis A Haro Durand
- Research Laboratory, National Atomic Energy Commission CNEA-Regional Noroeste, Argentina National Research Council CONICET, A4408FTV, Salta C1033AAJ, Argentina
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Lacerda SA, Matuoka RI, Macedo RM, Petenusci SO, Campos AA, Brentegani LG. Bone quality associated with daily intake of coffee: a biochemical, radiographic and histometric study. Braz Dent J 2010; 21:199-204. [DOI: 10.1590/s0103-64402010000300004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Accepted: 06/22/2010] [Indexed: 11/21/2022] Open
Abstract
Caffeine induces loss of calcium and influences the normal development of bone. This study investigated the effects of coffee on bone metabolism in rats by biochemical measurement of calcium, bone densitometry and histometry. Male rats, born of female treated daily with coffee and with coffee intake since born, were anesthetized, subjected to extraction of the upper right incisor, and sacrificed 7, 21 and 42 days after surgery. Blood and urine samples were taken, and their maxilla radiographed and processed to obtain 5-µm-thick semi-serial sections stained with hematoxylin and eosin. The volume and bone quality were estimated using an image-analysis software. The results showed significantly greater amount of calcium in the plasma (9.40 ± 1.73 versus 9.80 ± 2.05 mg%) and urine (1.00 ± 0.50 versus 1.25 ± 0.70 mg/24 h) and significantly less amount in bone (90.0 ± 1.94 versus 86.0 ± 2.12 mg/mg bone), reduced bone mineral density (1.05 ± 0.11 versus 0.65 ± 0.15 mmAL), and lower amount of bone (76.19 ± 1.6 versus 53.41 ± 2.1 %) (ANOVA; p≤0.01) in animals treated with coffee sacrificed after 42 days. It may be concluded that coffee/caffeine intake caused serious adverse effects on calcium metabolism in rats, including increased levels of calcium in the urine and plasma, decreased bone mineral density and lower volume of bone, thus delaying the bone repair process.
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Miljkovic D, Scorei RI, Cimpoiaşu VM, Scorei ID. Calcium Fructoborate: Plant-Based Dietary Boron for Human Nutrition. J Diet Suppl 2009; 6:211-26. [DOI: 10.1080/19390210903070772] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Nielsen FH, Stoecker BJ. Boron and fish oil have different beneficial effects on strength and trabecular microarchitecture of bone. J Trace Elem Med Biol 2009; 23:195-203. [PMID: 19486829 DOI: 10.1016/j.jtemb.2009.03.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 03/05/2009] [Accepted: 03/18/2009] [Indexed: 12/27/2022]
Abstract
An experiment was performed to determine whether boron deprivation would adversely affect vertebra (trabecular) bone microarchitecture, and whether any adverse effect would be modified by dietary fatty acid composition. Female rats were fed diets containing 0.1mg (9 micromol) boron/kg in a factorial arrangement with variables of supplemental boron at 0 (boron-deprived) or 3 (boron-adequate) mg (278 micromol)/kg and fat sources of 75 g safflower oil/kg or 65 g fish (menhaden)oil/kg plus 10 g linoleic acid/kg. After 6 weeks, six females per treatment were bred. Dams and pups continued on their respective diets through gestation, lactation, and after weaning. At age 21 weeks, the microarchitecture of the fourth lumbar vertebrae from 12 randomly selected pups from each treatment was determined by microcomputed tomography. Boron deprivation decreased bone volume fraction and increased trabecular separation and structural model index. Boron deprivation decreased trabecular thickness when the dietary oil was safflower. A three-point bending test for bone strength found that boron deprivation decreased the maximum force needed to break the femur. Feeding fish oil instead of safflower oil decreased connectivity density in vertebrae of boron-deficient but not in boron-adequate rats. Fish oil instead of safflower oil increased the maximum force to break and the bending moment of the femur, especially in rats fed adequate boron. The findings confirm that boron and fish oil are beneficial to cortical bone strength, and show that nutritional intakes of boron are beneficial for trabecular bone microarchitecture and influence the beneficial effects of fish oil on bone.
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Affiliation(s)
- Forrest H Nielsen
- US Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, 2420 2nd Avenue North, Stop 9034, Grand Forks, ND 58202-9034, USA.
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