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Parveen B, Penumallu NR, Shaik AR, Parveen A, Parveen R, Vohora D. The impact of antiseizure medication on bone heath: A systematic review of animal studies. Epilepsy Res 2024; 200:107302. [PMID: 38280331 DOI: 10.1016/j.eplepsyres.2024.107302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/01/2023] [Accepted: 01/11/2024] [Indexed: 01/29/2024]
Abstract
BACKGROUND Antiseizure medications (ASMs) are known to potentially impact bone health, but existing literature presents conflicting results regarding their specific effects on bone mineralization, metabolism, and quality. OBJECTIVE This systematic review aims to establish a consensus regarding the influence of ASMs on bone health based on existing preclinical studies. METHODS Following SYRCLE and PRISMA guidelines, we conducted a systematic search in PubMed, Science Direct, and Google Scholar to identify relevant studies. Ultimately, 21 articles were selected for inclusion in this review. RESULTS Among the chosen studies, approximately half involved Wistar rats as experimental subjects. Levetiracetam and sodium valproate were the most frequently investigated drugs, with a typical treatment duration of 10-12 weeks. These studies exhibited a low risk of bias in aspects like sequence generation, random housing, random outcome assessment, and reporting bias. However, blinding in performance, allocation concealment, and detection were often rated as having a high risk of bias. The collective findings suggest that prolonged ASM use leads to reduced bone mineral density, altered bone turnover marker levels (including hypovitaminosis D, hypocalcemia, and secondary hyperparathyroidism), deterioration of bone microarchitecture, and decreased mechanical strength. CONCLUSION The adverse effects on bone associated with ASMs are not limited to enzyme-inducing drugs, as newer generation ASMs may also contribute to these effects. Hypovitaminosis D alone may not be solely responsible for ASM-induced bone issues, suggesting the involvement of other mechanisms. Furthermore, substantial variations were observed in the results of different preclinical studies on individual ASMs, highlighting the need to standardize animal study methodologies to enhance reproducibility and reduce variation.
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Affiliation(s)
- Bushra Parveen
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India; Centre of Excellence in Unani Medicine (Pharmacognosy & Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India.
| | - Naveen Reddy Penumallu
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India; Centre of Excellence in Unani Medicine (Pharmacognosy & Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Abdul Rahaman Shaik
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Abida Parveen
- Centre of Excellence in Unani Medicine (Pharmacognosy & Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Rabea Parveen
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Divya Vohora
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India.
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Shi XY, Ju J, Lu Q, Hu LY, Tian YP, Guo GH, Liu ZS, Wu GF, Zhu HM, Zhang YQ, Li D, Gao L, Yang L, Wang CY, Liao JX, Wang JW, Zhou SZ, Wang H, Li XJ, Gao JY, Zhang L, Shu XM, Li D, Li Y, Chen CH, Zhang XJ, Zhong JM, Zhai QX, Sun YH, Lin XF, Ren RN, Yin F, Chen YH, Jia FY, Yang ZX, Wang JL, Xia ZZ, Wang LW, Luo R, Zou LP. Both epilepsy and anti-seizure medications affect bone metabolism in children with self-limited epilepsy with centrotemporal spikes. Epilepsia 2023; 64:2667-2678. [PMID: 37522416 DOI: 10.1111/epi.17733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE Bone metabolism can be influenced by a range of factors. We selected children with self-limited epilepsy with centrotemporal spikes (SeLECTS) and lifestyles similar to those of healthy children to control for the confounding factors that may influence bone metabolism. We aimed to identify the specific effects of epilepsy and/or anti-seizure medications (ASMs) on bone metabolism. METHODS Patients with SeLECTS were divided into an untreated group and a monotherapy group, and the third group was a healthy control group. We determined the levels of various biochemical markers of bone metabolism, including procollagen type I nitrogenous propeptide (PINP), alkaline phosphatase (ALP), osteocalcin (OC), collagen type I cross-linked C-telopeptide (CTX), calcium, magnesium, phosphorus, parathyroid hormone (PTH), and vitamin D3 (VD3 ). RESULTS A total of 1487 patients (from 19 centers) were diagnosed with SeLECTS; 1032 were analyzed, including 117 patients who did not receive any ASMs (untreated group), 643 patients who received only one ASM (monotherapy group), and 272 children in the healthy control group. Except for VD3 , other bone metabolism of the three groups were different (p < .001). Bone metabolism was significantly lower in the untreated group than the healthy control group (p < .05). There were significant differences between the monotherapy and healthy control group in the level of many markers. However, when comparing the monotherapy and untreated groups, the results were different; oxcarbazepine, levetiracetam, and topiramate had no significant effect on bone metabolism. Phosphorus and magnesium were significantly lower in the valproic acid group than the untreated group (adjusted p < .05, Cliff's delta .282-.768). CTX was significantly higher in the lamotrigine group than in the untreated group (adjusted p = .012, Cliff's delta = .316). SIGNIFICANCE Epilepsy can affect many aspects of bone metabolism. After controlling epilepsy and other confounders that affect bone metabolism, we found that the effects of ASMs on bone metabolism differed. Oxcarbazepine, levetiracetam, and topiramate did not affect bone metabolism, and lamotrigine corrected some of the abnormal markers of bone metabolism in patients with epilepsy.
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Affiliation(s)
- Xiu-Yu Shi
- Department of Pediatrics, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jun Ju
- Department of Pediatrics, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Qian Lu
- Department of Pediatrics, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Lin-Yan Hu
- Department of Pediatrics, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ya-Ping Tian
- Research Center of Birth Defect Prevention Technology, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Guang-Hong Guo
- Department of Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhi-Sheng Liu
- Department of Neurology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Ge-Fei Wu
- Department of Neurology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Hong-Min Zhu
- Department of Neurology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yu-Qin Zhang
- Department of Neurology, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, China
| | - Dong Li
- Department of Neurology, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, China
| | - Li Gao
- Department of Pediatrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Liu Yang
- Department of Pediatrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, China
| | - Chun-Yu Wang
- Department of Neurology, Harbin Children's Hospital, Harbin, China
| | - Jian-Xiang Liao
- Department of Neurology, Shenzhen Children's Hospital, Shenzhen, China
| | - Ji-Wen Wang
- Department of Neurology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shui-Zhen Zhou
- Department of Neurology, Children's Hospital of Fudan University, Shanghai, China
| | - Hua Wang
- Department of Pediatric Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiao-Jing Li
- Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Jing-Yun Gao
- Department of Pediatric Neurology, Hebei Tangshan City Maternal and Child Health Care Hospital, Tangshan, China
| | - Li Zhang
- Department of Pediatrics, Linyi People's Hospital, Linyi, China
| | - Xiao-Mei Shu
- Department of Pediatrics, Zunyi Medical College, Zunyi, China
| | - Dan Li
- Department of Pediatrics, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Li
- Department of Neurology, Children's Hospital Affiliated to Soochow University, Suzhou, China
| | - Chun-Hong Chen
- Department of Neurology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Xiu-Ju Zhang
- Department of Pediatrics, Xingtai People's Hospital, Xingtai, China
| | - Jian-Min Zhong
- Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Qiong-Xiang Zhai
- Department of Pediatrics, Guangdong General Hospital, Guangzhou, China
| | - Yan-Hong Sun
- Department of Pediatrics, Cangzhou Central Hospital, Cangzhou, China
| | - Xue-Feng Lin
- Department of Neurology, Quanzhou Children's Hospital, Quanzhou, China
| | - Rong-Na Ren
- Department of Pediatrics, 900 Hospital of the Joint Logistics Team, Fuzhou, China
| | - Fei Yin
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Yan-Hui Chen
- Department of Pediatrics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Fei-Yong Jia
- Department of Development and Behavioral Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Zhi-Xian Yang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Ju-Li Wang
- Department of Epilepsy, The Central Hospital of Jiamusi City, Jiamusi, China
| | - Zhe-Zhi Xia
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Li-Wen Wang
- Department of Neurology, Capital Institute of Pediatrics, Beijing, China
| | - Rong Luo
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Li-Ping Zou
- Department of Pediatrics, the First Medical Center, Chinese PLA General Hospital, Beijing, China
- Center for Brain Disorders Research, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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Ahmed H, Khan MA, Ali Zaidi SA, Muhammad S. In Silico and In Vivo: Evaluating the Therapeutic Potential of Kaempferol, Quercetin, and Catechin to Treat Chronic Epilepsy in a Rat Model. Front Bioeng Biotechnol 2021; 9:754952. [PMID: 34805114 PMCID: PMC8599161 DOI: 10.3389/fbioe.2021.754952] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/24/2021] [Indexed: 11/29/2022] Open
Abstract
Recently, alternative therapies are gaining popularity in the treatment of epilepsy. The present study aimed to find out the antiepileptic potential of quercetin, catechin, and kaempferol. In vivo and in silico experiments were conducted to investigate their therapeutic potential. 25 mg/kg/day of pentylenetetrazole was administered for 4 weeks after epilepsy was induced in the rats; this was followed by the behavioral studies and histological analysis of rat brain slices. Binding affinities of kaempferol, quercetin, and catechin were assessed by performing in silico studies. Kaempferol, quercetin, and catechin were found to have the highest binding affinity with the synaptic vesicle 2A (SV2A) protein, comparable to standard levetiracetam (LEV). The mRNA levels of SV2A, as well as the expression of TNF, IL 6, IL 1 beta, NFkB, IL 1Ra, IL 4, and IL 10, were investigated using qPCR. Our results indicate for the first time that SV2A is also a transporter of understudied phytoflavonoids, due to which a significant improvement was observed in epileptic parameters. The mRNA levels of SV2A were found to be significantly elevated in the PF-treated rats when compared with those of the control rats with epilepsy. Additionally, downregulation of the pro-inflammatory cytokines and upregulation of the anti-inflammatory cytokines were also noted in the PF-treated groups. It is concluded that kaempferol, quercetin, and catechin can effectively decrease the epileptic seizures in our chronic epilepsy rat model to a level that is comparable to the antiepileptic effects induced by levetiracetam drug.
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Affiliation(s)
- Hammad Ahmed
- Faculty of Pharmacy, The University of Lahore, Defence Road Campus, Lahore, Pakistan.,Imran Idrees College of Pharmacy, Sialkot, Pakistan
| | | | | | - Sajjad Muhammad
- Department of Neurosurgery, Medical Faculty, Heinrich-Heine University of Düsseldorf, Düsseldorf, Germany.,Department of Neurosurgery, University of Helsinki and University Hospital, Helsinki, Finland
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4
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Fourier Transform Infrared Imaging-A Novel Approach to Monitor Bio Molecular Changes in Subacute Mild Traumatic Brain Injury. Brain Sci 2021; 11:brainsci11070918. [PMID: 34356152 PMCID: PMC8307811 DOI: 10.3390/brainsci11070918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 06/28/2021] [Accepted: 07/02/2021] [Indexed: 11/26/2022] Open
Abstract
Traumatic brain injury (TBI) can be defined as a disorder in the function of the brain after a bump, blow, or jolt to the head, or penetrating head injury. Mild traumatic brain injury (mTBI) can cause devastating effects, such as the initiation of long-term neurodegeneration in brain tissue. In the current study, the effects of mTBI were investigated on rat brain regions; cortex (Co) and corpus callosum (CC) after 24 h (subacute trauma) by Fourier transform infrared (FTIR) imaging and immunohistochemistry (IHC). IHC studies showed the formation of amyloid-β (Aβ) plaques in the cortex brain region of mTBI rats. Moreover, staining of myelin basic protein presented the shearing of axons in CC region in the same group of animals. According to FTIR imaging results, total protein and lipid content significantly decreased in both Co and CC regions in mTBI group compared to the control. Due to this significant decrease in both lipid and protein content, remarkable consistency in lipid/protein band ratio in mTBI and control group, was observed. Significant decrease in methyl content and a significant increase in olefinic content were observed in Co and CC regions of mTBI rat brain tissues. Classification amongst distinguishable groups was performed using principal component analysis (PCA) and hierarchical clustering (HCA). This study established the prospective of FTIR imaging for assessing biochemical changes due to mTBI with high sensitivity, precision and high-resolution.
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5
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Ustaoglu SG, Ali MHM, Rakib F, Blezer ELA, Van Heijningen CL, Dijkhuizen RM, Severcan F. Biomolecular changes and subsequent time-dependent recovery in hippocampal tissue after experimental mild traumatic brain injury. Sci Rep 2021; 11:12468. [PMID: 34127773 PMCID: PMC8203626 DOI: 10.1038/s41598-021-92015-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/27/2021] [Indexed: 12/25/2022] Open
Abstract
Traumatic brain injury (TBI) is the main cause of disability and mortality in individuals under the age of 45 years. Elucidation of the molecular and structural alterations in brain tissue due to TBI is crucial to understand secondary and long-term effects after traumatic brain injury, and to develop and apply the correct therapies. In the current study, the molecular effects of TBI were investigated in rat brain at 24 h and 1 month after the injury to determine acute and chronic effects, respectively by Fourier transform infrared imaging. This study reports the time-dependent contextual and structural effects of TBI on hippocampal brain tissue. A mild form of TBI was induced in 11-week old male Sprague Dawley rats by weight drop. Band area and intensity ratios, band frequency and bandwidth values of specific spectral bands showed that TBI causes significant structural and contextual global changes including decrease in carbonyl content, unsaturated lipid content, lipid acyl chain length, membrane lipid order, total protein content, lipid/protein ratio, besides increase in membrane fluidity with an altered protein secondary structure and metabolic activity in hippocampus 24 h after injury. However, improvement and/or recovery effects in these parameters were observed at one month after TBI.
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Affiliation(s)
- Sebnem Garip Ustaoglu
- Department of Medical Biochemistry, Faculty of Medicine, Altinbas University, Bakirkoy, Istanbul, Turkey.
| | - Mohamed H M Ali
- Diabetes Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), P.O. Box 34110, Doha, Qatar.
| | - Fazle Rakib
- Department of Chemistry and Earth Sciences, Qatar University, Doha, Qatar
| | - Erwin L A Blezer
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Caroline L Van Heijningen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rick M Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Feride Severcan
- Department of Biophysics, Faculty of Medicine, Altinbas University, Bakirkoy, Istanbul, Turkey.,Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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6
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Guo Y, Lin Z, Huang Y, Yu L. Effects of valproate, lamotrigine, and levetiracetam monotherapy on bone health in newly diagnosed adult patients with epilepsy. Epilepsy Behav 2020; 113:107489. [PMID: 33220583 DOI: 10.1016/j.yebeh.2020.107489] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effects of valproate (VPA), lamotrigine (LTG), and levetiracetam (LEV) on bone turnover and bone mineral density (BMD) in newly diagnosed adult patients with epilepsy. METHODS Eligible adult patients who were newly diagnosed with epilepsy were treated with VPA, LTG, and LEV. The chemical indicators of bone metabolism and BMD were measured before treatment and 2 years after treatment with different antiseizure medication (ASM) monotherapies. Then, the differences in these parameters before and after treatment were analyzed. RESULTS One hundred twenty-four patients completed the 2 years follow-up; 43 received monotherapy with VPA, 32 received LTG, and 49 received LEV. Serum parathyroid hormone (PTH), bone alkaline phosphatase (B-ALP), and β-cross-linked C-telopeptide of type I collagen (β-CTX) levels were elevated in adult patients after 2 years of VPA administration; the serum procollagen I intact N-terminal peptide (PINP) level was noticeably higher in patients after LEV treatment than before treatment. Meanwhile, the BMD of the lumbar spine and femoral neck did not change in patients treated with VPA, LTG, and LEV. CONCLUSIONS Valproate altered bone turnover in adult patients with epilepsy, while LTG and LEV did not exert harmful effects on bone health in adult patients.
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Affiliation(s)
- Yi Guo
- Department of Neurology, The Sixth People's Hospital of Chengdu, No. 16 South Jianshe Road, Chengdu, Sichuan 610051, People's Republic of China
| | - Zhonghua Lin
- Sichuan Provincial Center for Mental Health, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, 32# W. Sec 2, 1st Ring Rd, Chengdu, Sichuan 610072, People's Republic of China
| | - Yulan Huang
- Sichuan Provincial Center for Mental Health, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, 32# W. Sec 2, 1st Ring Rd, Chengdu, Sichuan 610072, People's Republic of China.
| | - Liang Yu
- Department of Neurology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, 32# W. Sec 2, 1st Ring Rd, Chengdu, Sichuan 610072, People's Republic of China.
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7
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Kelly RR, Sidles SJ, LaRue AC. Effects of Neurological Disorders on Bone Health. Front Psychol 2020; 11:612366. [PMID: 33424724 PMCID: PMC7793932 DOI: 10.3389/fpsyg.2020.612366] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/11/2020] [Indexed: 01/10/2023] Open
Abstract
Neurological diseases, particularly in the context of aging, have serious impacts on quality of life and can negatively affect bone health. The brain-bone axis is critically important for skeletal metabolism, sensory innervation, and endocrine cross-talk between these organs. This review discusses current evidence for the cellular and molecular mechanisms by which various neurological disease categories, including autoimmune, developmental, dementia-related, movement, neuromuscular, stroke, trauma, and psychological, impart changes in bone homeostasis and mass, as well as fracture risk. Likewise, how bone may affect neurological function is discussed. Gaining a better understanding of brain-bone interactions, particularly in patients with underlying neurological disorders, may lead to development of novel therapies and discovery of shared risk factors, as well as highlight the need for broad, whole-health clinical approaches toward treatment.
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Affiliation(s)
- Ryan R. Kelly
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Sara J. Sidles
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Amanda C. LaRue
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
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8
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Zhang X, Zhong R, Chen Q, Li M, Lin W, Cui L. Effect of carbamazepine on the bone health of people with epilepsy: a systematic review and meta-analysis. J Int Med Res 2020; 48:300060520902608. [PMID: 32228127 PMCID: PMC7133082 DOI: 10.1177/0300060520902608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Importance Objective Methods Results
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Affiliation(s)
- Xinyue Zhang
- Department of Neurology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
| | - Rui Zhong
- Department of Neurology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
| | - Qingling Chen
- Department of Hepatology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
| | - Mengmeng Li
- Department of Neurology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
| | - Weihong Lin
- Department of Neurology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
| | - Li Cui
- Department of Neurology, The First Hospital of Jilin University, Chang Chun, Ji Lin Provence, China
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9
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Brady RD, Wong KR, Robinson DL, Mychasiuk R, McDonald SJ, D'Cunha RA, Yamakawa GR, Sun M, Wark JD, Lee PVS, O'Brien TJ, Casillas-Espinosa PM, Shultz SR. Bone Health in Rats With Temporal Lobe Epilepsy in the Absence of Anti-Epileptic Drugs. Front Pharmacol 2019; 10:1278. [PMID: 31749702 PMCID: PMC6842946 DOI: 10.3389/fphar.2019.01278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/07/2019] [Indexed: 01/18/2023] Open
Abstract
Rationale: Epilepsy patients often exhibit reduced bone mineral density and are at an increased risk of bone fracture. Whether these bone abnormalities are due to the use of anti-epileptic drugs (AED’s) or the disease itself is unknown. For example, although decreased bone health in epilepsy patients is generally attributed to the use of AED’s, seizures can also trigger a number of physiological processes that have the potential to affect bone. Therefore, to assess whether bone abnormalities occur in epilepsy in the absence of AED’s, the current study investigated mechanical characteristics and trabecular bone morphology in rats with chronic temporal lobe epilepsy. Methods: Ten-week old male Wistar rats underwent kainic acid-induced status epilepticus (SE; n = 7) or a sham procedure (n = 9). Rats were implanted with EEG recording electrodes at nine weeks post-SE, and video-EEG was continuously recorded for one week at 10- and 22-weeks post-SE to confirm that SE rats had spontaneous seizures. Open-field testing to assess locomotion was conducted at 23-weeks post-SE. At 24-weeks post-SE, rats were euthanized and tibia were extracted to determine trabecular morphology by micro-computed tomography (µCT), while femurs were used to investigate mechanical properties via 3-point bending. Results: All post-SE rats had spontaneous seizures at 10- and 22-weeks post-SE, while none of the sham rats had seizures. µCT trabecular analysis of tibia revealed no differences in total volume, bone volume, bone volume fraction, trabecular number, or trabecular separation between post-SE or sham rats, although post-SE rats did have increased trabecular thickness. There were also no group differences in total distance travelled in the open field suggesting that activity levels did not account for the increased trabecular thickness. In addition, no differences in mechanical properties of femurs were observed between the two groups. Conclusion: There was a lack of overt bone abnormalities in rats with chronic temporal lobe epilepsy in the absence of AED treatment. Although further studies are still needed, these findings may have important implications towards understanding the source (e.g., AED treatments) of bone abnormalities in epilepsy patients.
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Affiliation(s)
- Rhys D Brady
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Ker Rui Wong
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Dale L Robinson
- Department of Biomedical Engineering, University of Melbourne, Parkville, VIC, Australia
| | - Richelle Mychasiuk
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Stuart J McDonald
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Physiology, Anatomy, and Microbiology, La Trobe University, Bundoora, VIC, Australia
| | - Ryan A D'Cunha
- School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Glenn R Yamakawa
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Mujun Sun
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - John D Wark
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Peter Vee Sin Lee
- Department of Biomedical Engineering, University of Melbourne, Parkville, VIC, Australia
| | - Terence J O'Brien
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Pablo M Casillas-Espinosa
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Sandy R Shultz
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
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10
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Saad FA. Novel insights into the complex architecture of osteoporosis molecular genetics. Ann N Y Acad Sci 2019; 1462:37-52. [PMID: 31556133 DOI: 10.1111/nyas.14231] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/22/2019] [Accepted: 08/14/2019] [Indexed: 12/19/2022]
Abstract
Osteoporosis is a prevalent osteodegenerative disease and silent killer linked to a decrease in bone mass and decline of bone microarchitecture, due to impaired bone matrix mineralization, raising the risk of fracture. Nevertheless, the process of bone matrix mineralization is still an unsolved mystery. Osteoporosis is a polygenic disorder associated with genetic and environmental risk factors; however, the majority of genes associated with osteoporosis remain largely unknown. Several signaling pathways regulate bone mass; therefore, dysregulation of a single signaling pathway leads to metabolic bone disease owing to high or low bone mass. Parathyroid hormone, core-binding factor α-1 (Cbfa1), Wnt/β-catenin, the receptor activator of the nuclear factor kappa-B (NF-κB) ligand (RANKL), myostatin, and osteogenic exercise signaling pathways play pivotal roles in the regulation of bone mass. The myostatin signaling pathway increases bone resorption by activating the RANKL signaling pathway, whereas osteogenic exercise inhibits myostatin and sclerostin while inducing irisin that consequentially activates the Cbfa1 and Wnt/β-catenin bone formation pathways. The aims of this review are to summarize what is known about osteoporosis-related signaling pathways; define the role of these pathways in osteoporosis drug discovery; focus light on the link between bone, muscle, pancreas, and adipose integrative physiology and osteoporosis; and underline the emerging role of osteogenic exercise in the prevention of, and care for, osteoporosis, obesity, and diabetes.
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Affiliation(s)
- Fawzy Ali Saad
- Department of Orthopaedic Surgery, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts
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