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Wang YJ, Zheng Y, Cong L, Wang P, Zhao L, Xing L, Liu J, Xu H, Li N, Zhao Y, Shi Q, Liang Q. Lymphatic platelet thrombosis limits bone repair by precluding lymphatic transporting DAMPs. RESEARCH SQUARE 2023:rs.3.rs-3474507. [PMID: 38014223 PMCID: PMC10680927 DOI: 10.21203/rs.3.rs-3474507/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Lymphatic vessels (LVs) interdigitated with blood vessels, travel and form an extensive transport network in the musculoskeletal system. Blood vessels in bone regulate osteogenesis and hematopoiesis, however, whether LVs in bone affect fracture healing is unclear. Here, by near infrared indocyanine green lymphatic imaging (NIR-ICG), we examined lymphatic draining function at the tibial fracture sites and found lymphatic drainage insufficiency (LDI) occurred as early as two weeks after fracture. Sufficient lymphatic drainage facilitates fracture healing. In addition, we identified that lymphatic platelet thrombosis (LPT) blocks the draining lymphoid sinus and LVs, caused LDI and then inhibited fracture healing, which can be rescued by a pharmacological approach. Moreover, unblocked lymphatic drainage decreased neutrophils and increased M2-like macrophages of hematoma niche to support osteoblast (OB) survival and bone marrow-derived mesenchymal stem cell (BMSC) proliferation via transporting damage-associated molecular patterns (DAMPs). These findings demonstrate that LPT limits bone regeneration by blocking lymphatic drainage from transporting DAMPs. Together, these findings represent a novel way forward in the treatment of bone repair.
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Kyriakaki I, Karanikola T, Lillis T, Kontonasaki E, Dabarakis N. Effect of direct oral anticoagulant dabigatran on early bone healing: An experimental study in rats. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2023; 15:86-92. [PMID: 38357331 PMCID: PMC10862050 DOI: 10.34172/japid.2023.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/30/2023] [Indexed: 02/16/2024]
Abstract
Background Dabigatran belongs to the new generation of direct oral anticoagulants (DOACs). Its advantages are oral administration and no need for international normalized ratio (INR) monitoring. Although its use has increased, its potential side effects on bone healing and remodeling have not been fully investigated. The present study aimed to evaluate the possible effects of dabigatran on early bone healing. Methods Sixteen male Wistar rats were divided into two groups; in group A, 20-mg/kg dabigatran dose was administered orally daily for 15 days, while group B served as a control. Two circular bone defects (d=6 mm) were created on either side of the parietal bones. Two weeks after surgery and euthanasia of the animals, tissue samples (parietal bones that contained the defects) were harvested for histological and histomorphometric analysis. Statistical analysis was performed with a significance level of α=0.5. Results No statistically significant differences were found between the two groups regarding the regenerated bone (21.9% vs. 16.3%, P=0.172) or the percentage of bone bridging (63.3% vs. 53.5%, P=0.401). Conclusion Dabigatran did not affect bone regeneration, suggesting that it might be a safer drug compared to older anticoagulants known to lead to bone healing delay.
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Affiliation(s)
- Ioanna Kyriakaki
- Department of Dentoalveolar Surgery, Surgical Implantology and Roentgenology, Aristotle University, Thessaloniki, Greece
| | - Theodora Karanikola
- Private Practice, Clinical Instructor, Department of Oral Surgery, Implantology and Dental Radiology, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodoros Lillis
- Department of Dentoalveolar Surgery, Surgical Implantology and Roentgenology, Aristotle University, Thessaloniki, Greece
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Aristotle University of Thessaloniki, Greece
| | - Nikolaos Dabarakis
- Department of Dentoalveolar Surgery, Surgical Implantology and Roentgenology, Aristotle University, Thessaloniki, Greece
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Anti-Platelet and Anticoagulation Medications. Regen Med 2023. [DOI: 10.1007/978-3-030-75517-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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How Do Drugs Affect the Skeleton? Implications for Forensic Anthropology. BIOLOGY 2022; 11:biology11040524. [PMID: 35453723 PMCID: PMC9030599 DOI: 10.3390/biology11040524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/21/2022] [Accepted: 03/18/2022] [Indexed: 01/10/2023]
Abstract
Simple Summary Forensic anthropologists analyze human remains to assist in the identification of the deceased, predominantly by assessing age-at-death, sex, stature, ancestry and any unique identifying features. Whilst methods have been established to create this biological profile of the skeleton, these may be influenced by a number of factors. This paper, for the first time, provides an overview from a reading of the clinical and pharmacological literature to explore whether the intake of drugs can affect the skeleton and whether these may have implications for forensic anthropology casework. In effect, drugs such as tobacco, heroin, and prescription medications can alter bone mineral density, can increase the risk of fractures, destroy bone and changes to the dentition. By considering how drugs can affect the skeleton, forensic anthropologists can be aware of this when attempting to identify the deceased. Abstract Forensic anthropologists rely on a number of parameters when analyzing human skeletal remains to assist in the identification of the deceased, predominantly age-at-death, sex, stature, ancestry or population affinity, and any unique identifying features. During the examination of human remains, it is important to be aware that the skeletal features considered when applying anthropological methods may be influenced and modified by a number of factors, and particular to this article, prescription drugs (including medical and non-medical use) and other commonly used drugs. In view of this, this paper aims to review the medical, clinical and pharmacological literature to enable an assessment of those drug groups that as side effects have the potential to have an adverse effect on the skeleton, and explore whether or not they can influence the estimation of age-at-death, sex and other indicators of the biological profile. Moreover, it may be that the observation of certain alterations or inconsistencies in the skeleton may relate to the use of drugs or medication, and this in turn may help narrow down the list of missing persons to which a set of human remains could belong. The information gathered from the clinical and medical literature has been extracted with a forensic anthropological perspective and provides an awareness on how several drugs, such as opioids, cocaine, corticosteroids, non-steroidal anti-inflammatory drugs, alcohol, tobacco and others have notable effects on bone. Through different mechanisms, drugs can alter bone mineral density, causing osteopenia, osteoporosis, increase the risk of fractures, osteonecrosis, and oral changes. Not much has been written on the influence of drugs on the skeleton from the forensic anthropological practitioner perspective; and this review, in spite of its limitations and the requirement of further research, aims to investigate the current knowledge of the possible effects of both prescription and recreational drugs on bones, contributing to providing a better awareness in forensic anthropological practice and assisting in the identification process of the deceased.
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Bone Microthrombus Promotes Bone Loss in Iron Accumulation Rats. Curr Med Sci 2020; 40:943-950. [PMID: 32980898 DOI: 10.1007/s11596-020-2251-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 06/10/2020] [Indexed: 10/23/2022]
Abstract
In the present study, we investigated the changes of the coagulation state, bone microthrombus, microvascular bed and bone density levels in iron accumulation rats. Meanwhile,the effect of anticoagulation therapy on bone mineral density was further investigated. We established two groups: a control (Ctrl) group and an iron intervention (FAC) group. Changes in coagulation function, peripheral blood cell counts, bone microthrombus, bone vessels and bone mineral density were compared between the two groups. We designed the non-treatment group and treatment group to study the changes of bone mineral density by preventing microthrombus formation with the anticoagulant fondaparinux. We found that the fibrinogen and D-dimer contents were significantly higher, whereas the thrombin time (TT) and prothrombin time (PT) were significantly shorter in the FAC group. After ink staining, the microvascular bed in the FAC group was significantly reduced compared with that in the Ctrl group. HE and Martius Scarlet Blue (MSB) staining showed microthrombus in the bone marrow of the iron accumulation rats. Following anticoagulation therapy, the bone microcirculation vascular bed areas in the treatment group rats were significantly increased. Furthermore, the bone mineral density was increased in the treatment group compared with that in the non-treatment group. Through experiments, we found that the blood in iron accumulation rat was relatively hypercoagulable; moreover, there was microthrombus in the bone marrow, and the bone vascular bed was reduced. Additionally, anticoagulation was helpful for improving bone microcirculation, reducing microthrombus and decreasing bone loss.
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Dadwal G, Schulte-Huxel T, Kolb G. Effect of antithrombotic drugs on bone health. Z Gerontol Geriatr 2019; 53:457-462. [PMID: 31414167 DOI: 10.1007/s00391-019-01590-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 07/16/2019] [Indexed: 12/21/2022]
Abstract
With the increasing consumption of antithrombotic drugs among old people, expected as well as unexpected side effects on bone health are considerable, e.g. osteoporosis, fragility fractures, etc. This review focuses on antithrombotic drugs and their effects on bone health. The following groups were reviewed: parenteral long-term use of unfractionated heparin (UFH) is associated with osteopenia. The oral intake of vitamin K antagonists (VKA) makes them more convenient than UFH but chronic use also results in osteopenia. Limited reports of bone loss have been associated with low molecular weight heparins (LMWH) and indirect factor Xa inhibitors but in contrast to VKA and UFH they are less associated with osteopenia. There have been limited studies evaluating the effect of new oral anticoagulants (NOACs) on bones. Overall, they are considered safer than other drugs. There have been no reports about acetylsalicylic acid (ASA) and clopidogrel causing osteopenia but their metabolism by the kidneys and liver can cause reduced 25-hydroxy-vitamin D levels and can theoretically contribute to osteoporosis. Some reports suggested that high dosage clopidogrel can also negatively affect bones. After a detailed literature review long-term use of antithrombotic drugs can negatively affect the bones. Their role in bone health needs to be studied in detail and the clinical use in geriatric patients should be prudent.
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Affiliation(s)
- G Dadwal
- Department of Traumatology, Bonifatius Hospital Lingen, Wilhelmstraße 13, 49808, Lingen (Ems), Germany.
| | - T Schulte-Huxel
- Department of Traumatology, Bonifatius Hospital Lingen, Wilhelmstraße 13, 49808, Lingen (Ems), Germany
| | - G Kolb
- Department of Geriatrics and Physical Rehabilitation, Clinic of Internal Medicine, Bonifatius Hospital Lingen, Wilhelmstraße 13, 49808, Lingen (Ems), Germany
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Ante-mortem and Post-mortem Signs of Anticoagulant Rodenticide Toxicosis in Birds of Prey. EMERGING TOPICS IN ECOTOXICOLOGY 2018. [DOI: 10.1007/978-3-319-64377-9_5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Marković A, Đinić A, Calvo Guirado JL, Tahmaseb A, Šćepanović M, Janjić B. Randomized clinical study of the peri-implant healing to hydrophilic and hydrophobic implant surfaces in patients receiving anticoagulants. Clin Oral Implants Res 2016; 28:1241-1247. [DOI: 10.1111/clr.12948] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Aleksa Marković
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Ana Đinić
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - José Luis Calvo Guirado
- Department of Research; International Dentistry Research Cathedra; UCAM Universidad Catolica San Antonio de Murcia; Murcia Spain
| | - Ali Tahmaseb
- Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); Move Research Institute; Amsterdam The Netherlands
| | - Miodrag Šćepanović
- Department of Prosthodontics; School of Dental Medicine; University of Belgrade; Belgrade Serbia
| | - Bojan Janjić
- Department of Oral Surgery; School of Dental Medicine; University of Belgrade; Belgrade Serbia
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Wang X, Friis T, Glatt V, Crawford R, Xiao Y. Structural properties of fracture haematoma: current status and future clinical implications. J Tissue Eng Regen Med 2016; 11:2864-2875. [PMID: 27401283 DOI: 10.1002/term.2190] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/12/2016] [Accepted: 03/14/2016] [Indexed: 12/24/2022]
Abstract
Blood clots (haematomas) that form immediately following a bone fracture have been shown to be vital for the subsequent healing process. During the clotting process, a number of factors can influence the fibrin clot structure, such as fibrin polymerization, growth factor binding, cellular infiltration (including platelet retraction), protein concentrations and cytokines. The modulation of the fibrin clot structure within the fracture site has important clinical implications and could result in the development of multifunctional scaffolds that mimic the natural structure of a haematoma. Artificial haematoma structures such as these can be created from the patient's own blood and can therefore act as an ideal bone defect filling material for potential clinical application to accelerate bone regeneration. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xin Wang
- Department of Spine, Affiliated Hospital of Zunyi Medical College, Zunyi, People's Republic of China.,Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Thor Friis
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Vaida Glatt
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Ross Crawford
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Yin Xiao
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
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Abstract
BACKGROUND Recognizing the existence of adverse drug effects of frequently prescribed drugs can empower a clinician with knowledge to avoid dangerous adverse effects that may result in hazardous, negative patient outcomes on either fracture healing or bone health. Pharmacovigilance reports have described the influence of medications, allowing for bone health to be quite unpredictable. METHODS First, mechanisms found in the medical literature of potential drug adverse effects regarding fracture healing are presented. Second, the 100 most frequently prescribed medications in 2010 are reviewed regarding adverse effects on fracture healing. These reported adverse effects are evaluated for medical causation. Last, a data table describing the 100 reviewed medications and their reported effects on fracture healing is provided. RESULTS The actual number of different medications in the review was 72. Reported drug adverse effects on bone and fracture healing occurred with 59 of the 72 drugs (81.9%). These adverse effects are either described as a definitive statement or represented by postmarketing case reports. Thirteen of the 72 review drugs (18.1%) did not have any description of the possible effects on bone health. A total of 301 cases reports describing delayed union, malunion, and nonunion of fractures represent 31 of the 72 medications reviewed (43.1%). CONCLUSIONS This review offers the health-care provider information regarding potential adverse drug effects on bone health. Empowered with this information, clinicians may assist their patients in maximizing pharmacologic outcomes by avoiding these reported harmful adverse effects.
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Affiliation(s)
- Robert G. Smith
- Shoe String Podiatry, 723 Lucerne Cir, Ormond Beach, FL 32174. (E-mail: )
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Shimizu T, Takahata M, Kameda Y, Hamano H, Ito T, Kimura-Suda H, Todoh M, Tadano S, Iwasaki N. Vitamin K-dependent carboxylation of osteocalcin affects the efficacy of teriparatide (PTH(1-34)) for skeletal repair. Bone 2014; 64:95-101. [PMID: 24731926 DOI: 10.1016/j.bone.2014.04.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 03/16/2014] [Accepted: 04/04/2014] [Indexed: 01/02/2023]
Abstract
Teriparatide (PTH1-34) promotes skeletal repair and increases bone mass. Vitamin K is involved in bone mineralization as a coenzyme of γ-carboxylase for Gla proteins, and therefore vitamin K insufficiency caused by malnutrition or therapeutic intake of the vitamin K antagonist warfarin could affect the efficacy of PTH1-34 therapy for bone repair. In the present study, we investigated whether vitamin K influences the efficacy of PTH1-34 therapy for bone repair in a rat osteotomy model. Female 12-week-old Sprague-Dawley rats were subjected to a closed midshaft osteotomy of the femur and randomized into four groups (n=10 per group): vehicle, PTH1-34 (daily 30 μg/kg/day subcutaneous injection)+solvent (orally, three times a week), PTH1-34+warfarin (0.4 mg/kg/day orally, three times a week), and PTH1-34+vitamin K2 (menatetrenone, 30 mg/kg/day orally, three times a week). Serum γ-carboxylated and uncarboxylated osteocalcin (Gla-OC and Glu-OC) levels and radiographic healing were monitored every 2 weeks. Skeletal repair was assessed by micro-computed tomography, mechanical testing, and histology at 8weeks after surgery. PTH1-34 amplified the osteotomy-induced increase in Gla-OC and improved the mechanical properties as well as the volumetric bone mineral tissue density of the fracture callus. Concurrent use of warfarin decreased the response to PTH1-34 therapy in terms of mechanical recovery, probably by impairing mineralization due to the lack of Gla-OC. Although the effects of combination therapy with PTH1-34 and vitamin K2 on bone repair did not significantly exceed those of PTH1-34 monotherapy in rats fed sufficient dietary vitamin K, postoperative Gla-OC levels were correlated with the mechanical properties of the osteotomized femur in PTH1-34-treated rats regardless of the use of warfarin or vitamin K2. These findings suggest the importance of vitamin K dependent γ-carboxylation of OC for realizing the full effects of PTH1-34 on skeletal repair.
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Affiliation(s)
- Tomohiro Shimizu
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Masahiko Takahata
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan.
| | - Yusuke Kameda
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Hiroki Hamano
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
| | - Teppei Ito
- Chitose Institute of Science of Technology, Chitose, Japan
| | | | - Masahiro Todoh
- Division of Human Mechanical Systems and Design, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Shigeru Tadano
- Division of Human Mechanical Systems and Design, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Norimasa Iwasaki
- Hokkaido University, Department of Orthopedic Surgery, School of Medicine, Sapporo, Japan
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The Effect of Various Types Low Molecular Weight Heparins on Fracture Healing. Thromb Res 2013; 131:e114-9. [DOI: 10.1016/j.thromres.2013.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 06/07/2012] [Accepted: 01/02/2013] [Indexed: 11/19/2022]
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Abstract
All the adverse effects of heparins are related to their wide variety of biological activities, with bleeding being the most important safety issue, resulting directly from the potency of heparin as an anticoagulant. However, it is hard to define the bleeding risk, since it depends on numerous parameters including the indication, dosage, method, and duration of heparin application, the clinical study design and definition of bleeding as well as patient characteristics and determinants of bleeding such as type of surgery and co-medication. Nonbleeding complications of heparins are caused by binding of heparin molecules to proteins other than antithrombin and to cells, which is generally more pronounced with unfractionated heparin than with low-molecular-weight heparins. Accordingly, heparin-induced thrombocytopenia, the most severe nonbleeding adverse reaction, occurs about 10 times less with low-molecular-weight heparins than with unfractionated heparin. Frequent and therefore important adverse reactions of heparins are skin lesions resulting from delayed-type hypersensitivity reactions. All the other undesirable effects are discussed as well, but they are mostly clinically irrelevant.
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Affiliation(s)
- S Alban
- Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany.
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