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Li Y, Tan J, Tian J, Xu J, Shao H, Zhang J, Zhao T, Huang Y. Cross-sectional analysis of the correlation between serum uric acid and trabecular bone score: NHANES 2005-2008. Sci Rep 2023; 13:21546. [PMID: 38057416 PMCID: PMC10700542 DOI: 10.1038/s41598-023-48739-5] [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: 05/12/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023] Open
Abstract
Serum uric acid (SUA) has been discovered to be associated with bone mineral density (BMD), but its relationship with trabecular bone score (TBS) remains unclear. Thus, the aim of our study was to investigate the association between SUA levels and TBS. Our study included 5895 individuals over 20 years old (3061 men and 2834 women) from NHANES 2005-2008. To analyze the association between SUA and TBS, multivariate linear regression models with covariate adjustments were applied. Furthermore, population description, stratified analysis, single factor analysis, smooth curve fitting, interaction analysis, and threshold effect and saturation effect analysis were also conducted. After adjusting for covariates, SUA showed a strong negative relationship with total TBS (β = 0.319; 95% CI 0.145-0.494; P < 0.001). The relationship between SUA levels and total TBS was found to be nonlinear, with inflection points at 4.8 mg/dL for the overall population, 4.2 mg/dL for women, and 5.7 mg/dL for non-Hispanic whites, indicating a saturation effect. Additionally, no interactions were found in any of the subgroups. Our study found a negative association between SUA and total TBS in adults. Maintaining SUA at a saturated level can benefit in preventing osteoporosis and fractures.
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Affiliation(s)
- Yanlei Li
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China
| | - Jinxin Tan
- Department of Orthopedics, Zhejiang Medical & Health Group Hangzhou Hospital, Hangzhou, Zhejiang, China
| | - Jinlong Tian
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China
| | - Jiongnan Xu
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China
| | - Haiyu Shao
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China
| | - Jun Zhang
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China
| | - Tingxiao Zhao
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China.
| | - Yazeng Huang
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Shangtang Road 158#, Hangzhou, 310014, Zhejiang, China.
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Li H, Sun T, Han D, Gong W, Mao W, Gan X, Shu D, Zhou Q, Xu L, Hou L, Zhou M, Cai M, Lai X. Risk factors of osteoporosis in elderly inpatients: A cross-sectional single-centre study. FRONTIERS IN AGING 2023; 4:1126172. [PMID: 37229241 PMCID: PMC10204113 DOI: 10.3389/fragi.2023.1126172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 03/28/2023] [Indexed: 05/27/2023]
Abstract
Objective: This study aimed to identify factors significantly associated with the occurrence of osteoporosis in elderly and very elderly patients. Methods: Elderly hospitalized patients who were older than 60 years old, from the Rehabilitation Hospital from December 2019 to December 2020 were selected. Barthel index (BI), nutritional assessment, the causes of bone mineral density (BMD) reductions in elderly and elderly patients were analysed. Results: A total of 94 patients (83.56 ± 8.37 years old) were enrolled. With increasing age, the BMD of the lumbar spine, femoral neck, and femoral shaft of elderly patients significantly decreased, and the incidence of osteoporosis (OP) significantly increased. The BMD of the lumbar spine was negatively correlated with female and positively correlated with serum 25-hydroxyvitamin D levels, the difference between actual body weight and ideal body weight, and blood uric acid levels; The BMD of the femoral neck was negatively correlated with age and female, and positively correlated with height and geriatric nutrition risk index score. The BMD of the femoral shaft was negatively correlated with female and positively correlated with BI. Conclusion: With increasing age, the BMD of the lumbar spine and the femoral shaft significantly decreased, and the incidence of OP significantly increased in elderly and very elderly patients. Aric acid may protect bone health in elderly patients. Early attention to the nutritional status, exercise capacity, 25-hydroxyvitamin D level, and blood uric acid level in the elderly population can help identify high-risk elderly patients with OP.
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Affiliation(s)
- Han Li
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
- School of Medicine, Tongji University, Shanghai, China
| | - Tianbao Sun
- The Rehabilitation Department, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Dongmei Han
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Weiwei Gong
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Weiwei Mao
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Xianze Gan
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Dan Shu
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Qian Zhou
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Lei Xu
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Liufang Hou
- The Rehabilitation Department of Nephrology, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | | | - Mingwei Cai
- The Rehabilitation Department of Orthopedics, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Xueli Lai
- Department of Nephrology, Shanghai Changhai Hospital, Shanghai, China
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Dong WC, Guo JL, Jiang XH, Xu L, Wang H, Ni XY, Zhang YZ, Zhang ZQ, Jiang Y. A more accurate indicator to evaluate oxidative stress in rat plasma with osteoporosis. RSC Adv 2023; 13:1267-1277. [PMID: 36686958 PMCID: PMC9813688 DOI: 10.1039/d2ra05572d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/08/2022] [Indexed: 01/06/2023] Open
Abstract
Background: oxidative stress is linked to various human diseases which developed into the idea of "disrupted redox signaling". Osteoporosis (OP) is a chronic skeletal disorder characterized by low bone mineral density and deterioration of bone microarchitecture among which estrogen deficiency is the main cause. Lack of estrogen leads to the imbalance between oxidation and anti-oxidation in patients, and oxidative stress is an important link in the pathogenesis of OP. The ratio of the reduced to the oxidized thiols can characterize the redox status. However, few methods have been reported for the simultaneous determination of reduced forms and their oxidized forms of thiols in plasma. Methods: we developed a hollow fiber centrifugal ultrafiltration (HFCF-UF) method for sample preparation and validated a high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method to determine two reduced forms of thiols-homocysteine (Hcy), cysteine (Cys) levels and their respective oxidized compounds, homocystine (HHcy) and cystine (Cyss) in rat plasma simultaneously for the first time. Thirty-six female rats were randomly divided into three groups: normal control (NC), oxidative stress (ovariectomy, OVX) and ovariectomy with hydrogen-rich saline administration (OVX + HRS). Results: the validation parameters for the methodological results were within the acceptance criteria. There were both significant differences of Hcy/HHcy (Hcy reduced/oxidized) and Cys/Cyss (Cys reduced/oxidized) in rat plasma between three groups with both p < 0.05 and meanwhile, the p values of malondialdehyde, superoxide dismutase and glutathione peroxidase were all less than 0.01. The value of both Hcy/HHcy and Cys/Cyss were significantly decreased with the change of Micro-CT scan result of femoral neck in OVX group (both the trabecular thickness and trabecular number significantly decreased with a significant increase of trabecular separation) which demonstrate OP occurs. The change of Hcy/HHcy is more obvious and prominent than Cys/Cyss. Conclusions: the Hcy/HHcy and Cys/Cyss could be suitable biomarkers for oxidative stress and especially Hcy/HHcy is more sensitive. The developed method is simple and accurate. It can be easily applied in clinical research to further evaluate the oxidative stress indicator for disease risk factors.
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Affiliation(s)
- Wei-Chong Dong
- Department of Pharmacy, The Second Hospital of Hebei Medical University215# Heping West RoadShijiazhuangHebei Province 050051China,Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University361# East Zhongshan RoadShijiazhuangHebei Province 050017China
| | - Jia-Liang Guo
- Department of Orthopaedics, The Third Hospital of Hebei Medical University139# Ziqiang RoadShijiazhuangHebei Province 050000China
| | - Xin-Hui Jiang
- Department of Obstetrics and Gynecology, Aerospace Central HospitalBeijing 100049China
| | - Lei Xu
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuangHebei Province 050051China
| | - Huan Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University361# East Zhongshan RoadShijiazhuangHebei Province 050017China
| | - Xiao-yu Ni
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University361# East Zhongshan RoadShijiazhuangHebei Province 050017China
| | - Ying-Ze Zhang
- Department of Orthopaedics, The Third Hospital of Hebei Medical University139# Ziqiang RoadShijiazhuangHebei Province 050000China
| | - Zhi-Qing Zhang
- Department of Pharmacy, The Second Hospital of Hebei Medical University215# Heping West RoadShijiazhuangHebei Province 050051China
| | - Ye Jiang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University361# East Zhongshan RoadShijiazhuangHebei Province 050017China
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Zhang Y, Tan M, Liu B, Zeng M, Zhou Y, Zhang M, Wang Y, Wu J, Wang M. Relationship between bone mineral density and hyperuricemia in obesity: A cross-sectional study. Front Endocrinol (Lausanne) 2023; 14:1108475. [PMID: 37065741 PMCID: PMC10092361 DOI: 10.3389/fendo.2023.1108475] [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: 11/26/2022] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Obesity is an increasingly severe global public health issue. This study aims to estimate the cross-sectional association between bone mineral density (BMD) and hyperuricemia (HU) in obesity. METHOD A total of 275 obese subjects (126 men and 149 women) participated in this cross-sectional study. Obesity was diagnosed as body mass index (BMI) ≥28 kg/m2, whereas HU was defined as the blood uric acid level of 416 μmol/L in men and 360 μmol/L in women. The BMD of the lumbar spine and right hip was measured by dual-energy X-ray absorptiometry (DXA). The multivariable logistic regressions were employed to examine the relationship between BMD and HU in obesity, with the adjustment of gender, age, fasting blood glucose, fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR), cholesterol, triglycerides, low-density lipoprotein, high-density lipoprotein, creatinine, blood urea nitrogen, high-sensitivity C-reactive protein (hs-CRP), cigarette smoking, and alcohol drinking status. RESULT The overall prevalence of HU was 66.9% in this obese population. The mean age and BMI of this population were 27.9 ± 9.9 years and 35.2 ± 5.2 kg/m2, respectively. The multivariable-adjusted OR (the highest vs. lowest BMD quartile) demonstrated a negative relationship between BMD and HU in total (OR = 0.415, 95%CI: 0.182-0.946; p = 0.036), L1 (OR = 0.305, 95%CI: 0.127-0.730; p = 0.008), L2 (OR = 0.405, 95%CI: 0.177-0.925; p = 0.032), and L3 (OR = 0.368, 95%CI: 0.159-0.851; p = 0.020) lumbar vertebrae. In the subgroup analysis for the male population, the BMD was also negatively associated with HU in total (OR = 0.077, 95%CI: 0.014-0.427; p = 0.003), L1 (OR = 0.019, 95%CI: 0.002-0.206; p = 0.001), L2 (OR = 0.161, 95%CI: 0.034-0.767; p = 0.022), L3 (OR = 0.186, 95%CI: 0.041-0.858; p = 0.031), and L4 (OR = 0.231, 95%CI: 0.056-0.948; p = 0.042) lumbar vertebrae. However, such findings did not exist in women. In addition, there was no significant relationship between hip BMD and HU in obesity. CONCLUSION Our results showed that the lumbar BMD was negatively associated with HU in obesity. However, such findings only existed in men, rather than women. In addition, no significant relationship between hip BMD and HU existed in obesity. Due to the limited sample size and nature of the cross-sectional design, further large prospective studies are still needed to clarify the issues.
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Affiliation(s)
- Yi Zhang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Min Tan
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Hyperbaric Oxygen, People’s Hospital of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Boyu Liu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Endocrinology, Yiyang Central Hospital, Yiyang, Hunan, China
| | - Manxia Zeng
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - You Zhou
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengru Zhang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yikai Wang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing Wu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center for Obesity and its Metabolic Complications, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Min Wang, ; Jing Wu,
| | - Min Wang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center for Obesity and its Metabolic Complications, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Min Wang, ; Jing Wu,
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Chin KY, Ng BN, Rostam MKI, Muhammad Fadzil NFD, Raman V, Mohamed Yunus F, Syed Hashim SA, Ekeuku SO. A Mini Review on Osteoporosis: From Biology to Pharmacological Management of Bone Loss. J Clin Med 2022; 11:6434. [PMID: 36362662 PMCID: PMC9657533 DOI: 10.3390/jcm11216434] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 07/25/2023] Open
Abstract
Osteoporosis refers to excessive bone loss as reflected by the deterioration of bone mass and microarchitecture, which compromises bone strength. It is a complex multifactorial endocrine disease. Its pathogenesis relies on the presence of several endogenous and exogenous risk factors, which skew the physiological bone remodelling to a more catabolic process that results in net bone loss. This review aims to provide an overview of osteoporosis from its biology, epidemiology and clinical aspects (detection and pharmacological management). The review will serve as an updated reference for readers to understand the basics of osteoporosis and take action to prevent and manage this disease.
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Robles-Rivera K, Argoty-Pantoja AD, Hidalgo-Bravo A, Quezada-Sánchez AD, León-Reyes G, Flores YN, Salmerón J, Velázquez-Cruz R, Rivera-Paredez B. Uric Acid Levels Are Associated with Bone Mineral Density in Mexican Populations: A Longitudinal Study. Nutrients 2022; 14:nu14204245. [PMID: 36296929 PMCID: PMC9612067 DOI: 10.3390/nu14204245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/05/2022] [Accepted: 10/09/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Inconsistent epidemiological evidence between uric acid (UA) and bone mineral density (BMD) has been observed. Therefore, we evaluated the association between UA and BMD in Mexican adults. Methods: This analysis was conducted on 1423 participants from the Health Workers Cohort Study. We explored cross-sectional associations using linear regression and longitudinal associations using fixed-effects linear regression by sex and age groups (<45 and ≥45 years). Results: In females <45 years old, the cross-sectional analysis showed that UA levels were positively associated with total hip BMD. However, in the longitudinal analysis, we observed a negative association with the femoral neck and lumbar spine BMD. In contrast, in males <45 years old, we found an increase in total hip and femoral neck BMD in the groups with high levels of UA in the longitudinal association. On the other hand, in females ≥45 years old, we observed a longitudinal association between UA and loss of BMD at different sites. We did not observe an association between UA levels and BMD in males ≥45 years old. Conclusions: Our results suggest higher serum UA levels are associated with low BMD at different skeletal sites in Mexican females. Further studies are needed to delineate the underlying mechanisms behind this observation.
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Affiliation(s)
- Karina Robles-Rivera
- Research Center in Policies, Population and Health, School of Medicine, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Anna D. Argoty-Pantoja
- Research Center in Policies, Population and Health, School of Medicine, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Alberto Hidalgo-Bravo
- Department of Genetics, National Institute of Rehabilitation (INR), Mexico City 014389, Mexico
| | - Amado D. Quezada-Sánchez
- Center for Evaluation and Surveys Research, National Institute of Public Health (INSP), Cuernavaca 62100, Mexico
| | - Guadalupe León-Reyes
- Genomics of Bone Metabolism Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico
| | - Yvonne N. Flores
- Epidemiological and Health Services Research Unit, Morelos Delegation, Mexican Institute of Social Security, Cuernavaca 62000, Mexico
- Department of Health Policy and Management and UCLA-Kaiser Permanente Center for Health Equity, Fielding School of Public Health, University of California, Los Angeles, CA 90095, USA
- UCLA Center for Cancer Prevention and Control Research, Fielding School of Public Health, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095, USA
| | - Jorge Salmerón
- Research Center in Policies, Population and Health, School of Medicine, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Rafael Velázquez-Cruz
- Genomics of Bone Metabolism Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico
| | - Berenice Rivera-Paredez
- Research Center in Policies, Population and Health, School of Medicine, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
- Correspondence: ; Tel.: +52-55-56-22-66-66 (ext. 82355)
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Quah Y, Yi-Le JC, Park NH, Lee YY, Lee EB, Jang SH, Kim MJ, Rhee MH, Lee SJ, Park SC. Serum biomarker-based osteoporosis risk prediction and the systemic effects of Trifolium pratense ethanolic extract in a postmenopausal model. Chin Med 2022; 17:70. [PMID: 35701790 PMCID: PMC9199188 DOI: 10.1186/s13020-022-00622-7] [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: 03/21/2022] [Accepted: 05/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Recent years, a soaring number of marketed Trifolium pratense (red clover) extract products have denoted that a rising number of consumers are turning to natural alternatives to manage postmenopausal symptoms. T. pratense ethanolic extract (TPEE) showed immense potential for their uses in the treatment of menopause complications including osteoporosis and hormone dependent diseases. Early diagnosis of osteoporosis can increase the chance of efficient treatment and reduce fracture risks. Currently, the most common diagnosis of osteoporosis is performed by using dual-energy x-ray absorptiometry (DXA). However, the major limitation of DXA is that it is inaccessible and expensive in rural areas to be used for primary care inspection. Hence, serum biomarkers can serve as a meaningful and accessible data for osteoporosis diagnosis. Methods The present study systematically elucidated the anti-osteoporosis and estrogenic activities of TPEE in ovariectomized (OVX) rats by evaluating the bone microstructure, uterus index, serum and bone biomarkers, and osteoblastic and osteoclastic gene expression. Leverage on a pool of serum biomarkers obtained from this study, recursive feature elimination with a cross-validation method (RFECV) was used to select useful biomarkers for osteoporosis prediction. Then, using the key features extracted, we employed five classification algorithms: extreme gradient boosting (XGBoost), random forest, support vector machine, artificial neural network, and decision tree to predict the bone quality in terms of T-score. Results TPEE treatments down-regulated nuclear factor kappa-B ligand, alkaline phosphatase, and up-regulated estrogen receptor β gene expression. Additionally, reduced serum C-terminal telopeptides of type 1 collagen level and improvement in the estrogen dependent characteristics of the uterus on the lining of the lumen were observed in the TPEE intervention group. Among the tested classifiers, XGBoost stood out as the best performing classification model with the highest F1-score and lowest standard deviation. Conclusions The present study demonstrates that TPEE treatment showed therapeutic benefits in the prevention of osteoporosis at the transcriptional level and maintained the estrogen dependent characteristics of the uterus. Our study revealed that, in the case of limited number of features, RFECV paired with XGBoost model could serve as a powerful tool to readily evaluate and diagnose postmenopausal osteoporosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-022-00622-7.
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Affiliation(s)
- Yixian Quah
- College of Veterinary Medicine and Cardiovascular Research Institute, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea.,Reproductive and Development Toxicology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Jireh Chan Yi-Le
- Centre of IoT and Big Data, Universiti Tunku Abdul Rahman, 31900, Kampar, Perak, Malaysia
| | - Na-Hye Park
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Yuan Yee Lee
- College of Veterinary Medicine and Cardiovascular Research Institute, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Eon-Bee Lee
- College of Veterinary Medicine and Cardiovascular Research Institute, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Seung-Hee Jang
- Teazen Co. Ltd., Gyegok-myeon, Haenam-gun, Jeollanam-do, 59017, Republic of Korea
| | - Min-Jeong Kim
- Teazen Co. Ltd., Gyegok-myeon, Haenam-gun, Jeollanam-do, 59017, Republic of Korea
| | - Man Hee Rhee
- College of Veterinary Medicine and Cardiovascular Research Institute, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Seung-Jin Lee
- Reproductive and Development Toxicology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea.
| | - Seung-Chun Park
- College of Veterinary Medicine and Cardiovascular Research Institute, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea.
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Bone mineral density and oxidative stress in adolescent girls with anorexia nervosa. Eur J Pediatr 2022; 181:311-321. [PMID: 34292351 DOI: 10.1007/s00431-021-04199-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/01/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
Oxidative stress appears to be involved in the pathogenesis of osteoporosis-a serious complication of anorexia nervosa (AN). We evaluated the oxidative status in adolescent girls with AN and its potential relationship with bone mineral density (BMD). Girls with AN (n = 43) and age-matched healthy controls (n = 20) underwent anthropometric and BMD examination. Markers of bone turnover, oxidative stress, and antioxidant status were measured. Participants with AN and controls did not differ in BMD at the lumbar spine (p = 0.17) and total body less head BMD (p = 0.08). BMD at the total hip was lower (p < 0.001) in the AN group compared with the controls. Levels of antioxidant status markers-ferric reduction antioxidant power, total antioxidant capacity, and reduced and oxidized glutathione ratio (all p < 0.001)-were significantly lower, whereas those of advanced oxidation protein products (AOPP), fructosamines, and advanced glycation end products (AGEs) (all p < 0.001) were higher in AN patients than in healthy controls. BMD and bone turnover markers were positively correlated with antioxidant status markers, while they were negatively correlated with AOPP, fructosamines, and AGEs levels. Conclusion: This is the first study to assess a potential association between oxidative status and BMD in adolescents with AN. We demonstrated that in young girls, the imbalance of oxidative status and reduced BMD are concurrently manifested at the time of the diagnosis of AN. Disturbance of oxidative status could play a pathogenetic role in AN-associated decreased BMD. What is Known: • Osteoporosis is a serious complication of AN, and in affected adolescents may result in a permanent deficit in bone mass. • Oxidative and carbonyl stress may be involved in the development of bone loss. What is New: • Adolescents girls with AN have impaired antioxidant defense and increased oxidative damage to biomolecules. • Disturbance of oxidative status could affect bone loss and could contribute to decreased BMD in adolescent females with AN.
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Kang S, Kwon D, Lee J, Chung YJ, Kim MR, Namkung J, Jeung IC. Association between Serum Uric Acid Levels and Bone Mineral Density in Postmenopausal Women: A Cross-Sectional and Longitudinal Study. Healthcare (Basel) 2021; 9:healthcare9121681. [PMID: 34946407 PMCID: PMC8701215 DOI: 10.3390/healthcare9121681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 02/04/2023] Open
Abstract
Background: Uric acid is one of natural antioxidants in human body. There have been several studies on the correlation between uric acid with oxidative stress and osteoporosis. However, the data are insufficient and results are controversial. In this regard, we determined the association between uric acid levels and bone mineral density (BMD) during the postmenopausal period. Methods: We analyzed data from 328 postmenopausal women (mean age, 57.3 ± 6.5 years; mean serum uric acid level, 4.6 ± 1.0 mg/dL). The participants were divided into three groups based on tertiles of the serum uric acid level. The participants receiving hormone replacement therapy (HRT), bisphosphonates, or lipid-lowering agents were included. Results: Blood urea nitrogen, serum creatinine, and serum triglyceride levels were significantly higher in the upper tertiles of uric acid levels. No significant difference was found in the mean uric acid levels between medication users and non-users. Each HRT regimen had a different mean serum uric acid level. A cross-sectional analysis showed no significant correlation between the serum uric acid levels and BMD in the spine and femoral neck (spine BMD: 1.050 ± 0.131, 1.060 ± 0.160, 1.084 ± 0.140, p = 0.22; femoral neck BMD: 0.837 ± 0.110, 0.849 ± 0.096, 0.863 ± 0.115, p = 0.28 for each tertile of uric acid). Longitudinal analysis of data from 186 women with follow-up examinations at a mean interval of 14.6 months also revealed no difference in reduction in both spine and femoral neck BMD between tertile groups of serum uric acid (the median BMD reduction for spine: −0.02, 0.01, −0.04, p = 0.95; the median BMD reduction for femoral neck: 0.008, 0.005, −0.003, p = 0.34). Conclusions: Serum uric acid level is not associated with BMD in postmenopausal women.
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Affiliation(s)
- Soyeon Kang
- St. Vincent’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (S.K.); (D.K.); (J.L.)
| | - Dongjin Kwon
- St. Vincent’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (S.K.); (D.K.); (J.L.)
| | - Jiwoo Lee
- St. Vincent’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (S.K.); (D.K.); (J.L.)
| | - Youn-Jee Chung
- Seoul St. Mary’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-J.C.); (M.-R.K.)
| | - Mee-Ran Kim
- Seoul St. Mary’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-J.C.); (M.-R.K.)
| | - Jeong Namkung
- Eunpyeong St. Mary’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - In Cheul Jeung
- Daejeon St. Mary’s Hospital, Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-42-220-9272
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Samsulrizal N, Goh YM, Ahmad H, Md Dom S, Azmi NS, NoorMohamad Zin NS, Ebrahimi M. Ficus deltoidea promotes bone formation in streptozotocin-induced diabetic rats. PHARMACEUTICAL BIOLOGY 2021; 59:66-73. [PMID: 33399485 PMCID: PMC7801090 DOI: 10.1080/13880209.2020.1865411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/10/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
CONTEXT Diabetes mellitus increases the risk of bone diseases including osteoporosis and osteoarthritis. We have previously demonstrated that Ficus deltoidea Jack (Moraceae) is capable of reducing hyperglycaemia. However, whether F. deltoidea could protect against diabetic osteoporosis remains to be determined. OBJECTIVE The study examines the effect of F. deltoidea on bone histomorphometric parameters, oxidative stress, and turnover markers in diabetic rats. MATERIALS AND METHODS Streptozotocin (STZ)-induced diabetic Sprague-Dawley rats (n = 6 animals per group) received one of the following treatments via gavage for 8 weeks: saline (diabetic control), metformin (1000 mg/kg bwt), and methanol leaves extract of F. deltoidea (1000 mg/kg bwt). A group of healthy rats served as normal control. The femoral bones were excised and scanned ex vivo using micro-computed tomography (micro-CT) for histomorphometric analysis. The serum levels of insulin, oxidative stress, and bone turnover markers were determined by ELISA assays. RESULTS Treatment of diabetic rats with F. deltoidea could significantly increase bone mineral density (BMD) (from 526.98 ± 11.87 to 637.74 ± 3.90). Higher levels of insulin (2.41 ± 0.08 vs. 1.58 ± 0.16), osteocalcin (155.66 ± 4.11 vs. 14.35 ± 0.97), and total bone n-3 PUFA (2.34 ± 0.47 vs. 1.44 ± 0.18) in parallel with the presence of chondrocyte hypertrophy were also observed following F. deltoidea treatment compared to diabetic control. CONCLUSIONS F. deltoidea could prevent diabetic osteoporosis by enhancing osteogenesis and inhibiting bone oxidative stress. These findings support the potential use of F. deltoidea for osteoporosis therapy in diabetes.
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Affiliation(s)
| | - Yong-Meng Goh
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Hafandi Ahmad
- Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Sulaiman Md Dom
- Medical Imaging Department, Faculty of Health Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia
| | | | | | - Mahdi Ebrahimi
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University G.C, Evin, Tehran, Iran
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Elesawy BH, F. Sakr H, M. Abbas A. Synergistic Protective Effects of Resveratrol and Estradiol on Estrogen Deficiency-Induced Osteoporosis Through Attenuating RANK Pathway. INT J PHARMACOL 2021. [DOI: 10.3923/ijp.2021.217.228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Li X, Li L, Yang L, Yang J, Lu H. No association between serum uric acid and lumbar spine bone mineral density in US adult males: a cross sectional study. Sci Rep 2021; 11:15588. [PMID: 34341438 PMCID: PMC8329127 DOI: 10.1038/s41598-021-95207-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 07/20/2021] [Indexed: 12/17/2022] Open
Abstract
Available evidence linking serum uric acid (SUA) and bone mineral density (BMD) remains controversial, and data on this association are limited among adult men in the general population. Thus, the aim of this study was to evaluate the association of SUA with lumbar spine BMD in US adult males. A cross-sectional study was conducted based on the National Health and Nutrition Examination Survey (NHANES, 1999–2006) database. Multivariate linear regression analyses were employed to assess the association of SUA with lumbar spine BMD, considering complex survey design and sampling weights. Through rigorous eligibility criteria, a total of 6704 individuals were yielded for final data analysis (average age, 40.5 years; 70.6% white). After fully adjusting potential confounders, no associations were detected between SUA and lumbar spine BMD [β (95% confidence interval, CI), − 0.003 (− 0.007, 0.002)]. Additionally, similar results were observed in all stratification analyses, and no interactions were found based on all priori specifications. In brief, our findings did not provide an inspiring clue for the hypothesis that SUA may be beneficial to lumbar spine BMD. Future more prospective studies are needed to further explore the causal relationship of SUA with lumbar spine BMD.
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Affiliation(s)
- Xiaoli Li
- Department of Rheumatology, Xingtai People's Hospital, Xingtai, 054001, Hebei, China. .,Department of Internal Medicine, Hebei Medical University, Shijiazhuang, 050017, Hebei, China.
| | - Lianju Li
- Department of Rheumatology, Xingtai People's Hospital, Xingtai, 054001, Hebei, China
| | - Lixian Yang
- Department of Breast Surgery, Xingtai People's Hospital, Xingtai, 054001, Hebei, China
| | - Jiaxun Yang
- Department of Information Center, Xingtai People's Hospital, Xingtai, 054001, Hebei, China
| | - Hua Lu
- Department of Nephrology, Xingtai People's Hospital, Xingtai, 054001, Hebei, China
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Association between higher serum uric acid levels within the normal physiological range and changes of lumbar spine bone mineral density in healthy Chinese postmenopausal women: a longitudinal follow-up study. ACTA ACUST UNITED AC 2021; 28:1157-1165. [PMID: 34342286 DOI: 10.1097/gme.0000000000001821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The aim of this study was to investigate whether higher serum uric acid (SUA) levels within the physiological range were associated with changes in lumbar spine bone mineral density (LBMD) in postmenopausal women without existing lumbar spine osteoporosis after a longitudinal follow-up of 3.09 years, and to further confirm the relationship between SUA and bone mineral density (BMD) in other sites such as femoral neck, total hip, and trochanter at follow-up. METHODS A longitudinal study of 175 healthy postmenopausal women without osteoporosis was conducted in Shenyang, China. BMD of the lumbar spine, femoral neck, total hip, and trochanter were measured using dual-energy x-ray absorptiometry at each visit. Pearson's correlation analysis and regression analyses were performed to determine any associations. RESULTS There were positive correlations between baseline SUA and BMD of the lumbar spine (P = 0.03), total hip (P = 0.04), and trochanter (P = 0.04). Moreover, higher baseline SUA levels were independently associated with LBMD decline and the odds ratio of the baseline SUA of the third quartile group was 0.12 (95% confidence interval, 0.02-0.70, P < 0.05), with P = 0.23 for the trend in baseline SUA when compared with participants in the lowest, first quartile group after adjustment for many potential confounding variables. CONCLUSIONS Higher SUA levels within the normal physiological range were independently associated with decreased LBMD, and SUA levels were positively related to the BMD of the lumbar spine, total hip, and trochanter in healthy Chinese postmenopausal women.
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Wang P, Liu L, Lei SF. Causal effects of homocysteine levels on the changes of bone mineral density and risk for bone fracture: A two-sample mendelian randomization study. Clin Nutr 2021; 40:1588-1595. [PMID: 33744603 DOI: 10.1016/j.clnu.2021.02.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/30/2021] [Accepted: 02/27/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND & AIMS Observational studies have demonstrated the relations of homocysteine (HCY) with bone mineral density (BMD) and bone fracture risk, but yielding contradictory results. The present study was conducted to evaluate whether the genetically predicted plasma HCY levels were causally associated with the change of BMD and the risk of bone fracture. METHODS Genetic summary statistics were extracted from genome-wide association study (GWAS) meta-analysis of plasma HCY levels (n = 44,147), GWAS meta-analyses of measured forearm (FA), femoral neck (FN) and lumbar spine (LS) BMD (n = up to 32,735), UK Biobank estimated heel BMD (eBMD) (n = 426,824) and fracture (n = 426,795) GWAS data. Two Sample Mendelian Randomization (TSMR) analysis was performed to assess the causal effects of genetically determined plasma HCY on the BMD and bone fractures. RESULTS The MR analysis indicated that, genetically decreased plasma HCY was associated with the increased FA-BMD based on the inverse variance weighting (IVW) method (standard deviation [SD] = 0.348, 95% CI: 0.146 to 0.550, P = 7 × 10-4). However, there were no significant associations of genetically decreased plasma HCY with FN-BMD, LS-BMD, eBMD and the risk for bone fracture (SD = -0.041, 95% CI: -0.189 to 0.106, P = 0.582; SD = -0.053, 95% CI: -0.238 to 0.131, P = 0.572; SD = -0.030, 95% CI: -0.090 to 0.030, P = 0.328, odds ratio [OR]: 1.03, 95% CI: 0.94 to 1.13, P = 0.562, respectively). Moreover, the results also found that genetically determined HCY increase was not correlated with the changes of BMD and the risk for bone fracture. CONCLUSION Our study revealed that genetically decreased plasma HCY was associated with increase of FA-BMD.
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Affiliation(s)
- Peng Wang
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University Medical College, 199 Renai Road, Suzhou, Jiangsu, 215123, China; Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University Medical College, Suzhou, Jiangsu 215123, China
| | - Lei Liu
- Department of Parasitology, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Shu-Feng Lei
- Center for Genetic Epidemiology and Genomics, School of Public Health, Soochow University Medical College, 199 Renai Road, Suzhou, Jiangsu, 215123, China; Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University Medical College, Suzhou, Jiangsu 215123, China.
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Nrf2 epigenetic derepression induced by running exercise protects against osteoporosis. Bone Res 2021; 9:15. [PMID: 33637693 PMCID: PMC7910611 DOI: 10.1038/s41413-020-00128-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/06/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022] Open
Abstract
Osteoporosis (OP) is a common skeletal disease involving low bone mineral density (BMD) that often leads to fragility fracture, and its development is affected by multiple cellular pathologies and associated with marked epigenetic alterations of osteogenic genes. Proper physical exercise is beneficial for bone health and OP and reportedly possesses epigenetic modulating capacities; however, whether the protective effects of exercise on OP involve epigenetic mechanisms is unclear. Here, we report that epigenetic derepression of nuclear factor erythroid derived 2-related factor-2 (Nrf2), a master regulator of oxidative stress critically involved in the pathogenesis of OP, mediates the significant osteoprotective effects of running exercise (RE) in a mouse model of OP induced by ovariectomy. We showed that Nrf2 gene knockout (Nfe2l2-/-) ovariectomized mice displayed a worse BMD reduction than the controls, identifying Nrf2 as a critical antiosteoporotic factor. Further, femoral Nrf2 was markedly repressed with concomitant DNA methyltransferase (Dnmt) 1/Dnmt3a/Dnmt3b elevations and Nrf2 promoter hypermethylation in both patients with OP and ovariectomized mice. However, daily 1-h treadmill RE significantly corrected epigenetic alterations, recovered Nrf2 loss and improved the femur bone mass and trabecular microstructure. Consistently, RE also normalized the adverse expression of major osteogenic factors, including osteoblast/osteoclast markers, Nrf2 downstream antioxidant enzymes and proinflammatory cytokines. More importantly, the RE-conferred osteoprotective effects observed in the wild-type control mice were largely abolished in the Nfe2l2-/- mice. Thus, Nrf2 repression due to aberrant Dnmt elevation and subsequent Nrf2 promoter hypermethylation is likely an important epigenetic feature of the pathogenesis of OP, and Nrf2 derepression is essential for the antiosteoporotic effects of RE.
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16
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Pan K, Yao X, Liu M, Zhu Z. Association of Serum Uric Acid Status With Bone Mineral Density in Adolescents Aged 12-19 Years. Front Med (Lausanne) 2020; 7:255. [PMID: 32582737 PMCID: PMC7296087 DOI: 10.3389/fmed.2020.00255] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/12/2020] [Indexed: 01/31/2023] Open
Abstract
Aims: Evidence linking serum uric acid (sUA) and bone mineral density (BMD) in adolescents is very limited. To the best of our knowledge, only one report has focused on the relationship between sUA and BMD in adolescents. Thus, this study aimed to determine the association between sUA and total BMD in adolescents aged 12-19 years. Methods: A cross-sectional study was conducted on a sample composed of non-institutionalized US population from the National Health and Nutrition Examination Survey. Weighted multivariate linear regression models were used to evaluate the association between sUA and total BMD. Subgroup analyses were further performed. Results: sUA positively correlated with total BMD in the multiple regression model after adjusting for potential confounders. However, in the subgroup analyses stratified by sex, age, or race/ethnicity, the association between sUA and total BMD followed an inverted U-shaped curve in female adolescents, adolescents aged 16-19 years, and other race/ethnicity. Conclusions: Our results suggested that the correlation between sUA level and total BMD differed by sex. The increased sUA level would be beneficial to bone health in adolescents with low sUA levels, but for female adolescents, a higher sUA level (turning point, 3.9 mg/dL) may have an adverse effect on bone health.
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Affiliation(s)
- Kaiyu Pan
- Department of Paediatrics, The First People's Hospital of Xiaoshan District, Hangzhou, China
| | - Xiaocong Yao
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Hangzhou, China
| | - Minbo Liu
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Hangzhou, China
| | - Zhongxin Zhu
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Hangzhou, China.,Institute of Orthopaedics and Traumatology, Zhejiang Chinese Medical University, Hangzhou, China
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Yao X, Chen L, Xu H, Zhu Z. The Association between Serum Uric Acid and Bone Mineral Density in Older Adults. Int J Endocrinol 2020; 2020:3082318. [PMID: 32676109 PMCID: PMC7341403 DOI: 10.1155/2020/3082318] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/04/2020] [Accepted: 06/12/2020] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES Uric acid has been found to be potentially protective in bone metabolism. We investigated the relationship between serum uric acid (sUA) and lumbar bone mineral density (BMD) among 4156 participants aged 60 years and over from the National Health and Nutrition Examination Survey (NHANES). METHODS To estimate the association between sUA and lumbar BMD, multivariate logistic regression analyses were conducted. Fitted smoothing curves and generalized additive models were also performed. RESULTS We found sUA positively correlated with lumbar BMD after adjusting for other confounders. On subgroup analyses, stratified by sex and race/ethnicity, the positive correlation of sUA with lumbar BMD remained in both men and women, as well as in whites and Mexican Americans, but not in blacks. In blacks, the association of sUA with lumbar BMD was an inverted U-shaped curve (inflection point: 7.5 mg/dL). CONCLUSIONS Our study revealed a positive relationship between sUA and lumbar BMD among most old adults. This association followed an inverted U-shaped curve among blacks.
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Affiliation(s)
- Xiaocong Yao
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Hangzhou, Zhejiang 311200, China
| | - Lin Chen
- Department of Immune and Rheumatology, The First People's Hospital of Xiaoshan District, Hangzhou, Zhejiang 311200, China
| | - Huihui Xu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
- Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang 310053, China
| | - Zhongxin Zhu
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Hangzhou, Zhejiang 311200, China
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
- Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang 310053, China
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Bonaccorsi G, Trentini A, Greco P, Tisato V, Gemmati D, Bianchi N, Giganti M, Rossini M, Guglielmi G, Cervellati C. Changes in Adipose Tissue Distribution and Association between Uric Acid and Bone Health during Menopause Transition. Int J Mol Sci 2019; 20:ijms20246321. [PMID: 31847375 PMCID: PMC6941025 DOI: 10.3390/ijms20246321] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/01/2019] [Accepted: 12/10/2019] [Indexed: 01/14/2023] Open
Abstract
Despite convincing experimental evidence, epidemiological studies on the effects of serum uric acid (SUA) on bone health are still conflicting since factors influencing SUA bioavailability have not been adequately considered. To shed some light on this issue, we investigated the impact of adiposity and menopause status on the relationship between SUA and bone health. We examined SUA in relation to bone mineral density (BMD) at different skeletal sites and with markers of bone metabolism in 124 pre-menopausal and 234 post-menopausal women and assessed whether adiposity, evaluated by anthropometry and dual x-ray absorptiometry (DXA), might have a discriminant role. After conservative adjustment (covariates: age, hormones treatment, smoking and time since menopause), SUA showed a significant and positive association with total hip BMD (β = 0.220, p < 0.01) among postmenopausal women, maintained also after adjustment for legs adiposity. Notably, stratification for waist circumference quartiles revealed that the correlation between SUA and total hip BMD was significant (r = 0.444, p = 0.001) in the highest quartile (91–100 cm). Our results suggest that SUA might be beneficial for bone health in postmenopausal women being characterized by a more android fat distribution, ascribing to SUA a discriminant role during menopause transition, potentially relevant also for men.
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Affiliation(s)
- Gloria Bonaccorsi
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, 44124 Ferrara, Italy; (G.B.); (P.G.); (M.G.)
- Menopause and Osteoporosis Centre, University of Ferrara, 44124 Ferrara, Italy
- Center of Gender Medicine, University of Ferrara, 44121 Ferrara, Italy;
| | - Alessandro Trentini
- Department of Biomedical and Specialist Surgical Sciences, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, 44121 Ferrara, Italy; (A.T.); (N.B.)
| | - Pantaleo Greco
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, 44124 Ferrara, Italy; (G.B.); (P.G.); (M.G.)
- Menopause and Osteoporosis Centre, University of Ferrara, 44124 Ferrara, Italy
| | - Veronica Tisato
- Department of Morphology, Surgery and Experimental Medicine, and LTTA Centre, University of Ferrara, 44121 Ferrara, Italy;
| | - Donato Gemmati
- Center of Gender Medicine, University of Ferrara, 44121 Ferrara, Italy;
- Department of Biomedical and Specialist Surgical Sciences, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, 44121 Ferrara, Italy; (A.T.); (N.B.)
| | - Nicoletta Bianchi
- Department of Biomedical and Specialist Surgical Sciences, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, 44121 Ferrara, Italy; (A.T.); (N.B.)
| | - Melchiore Giganti
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, 44124 Ferrara, Italy; (G.B.); (P.G.); (M.G.)
- Department of Morphology, Laboratory of Nuclear Medicine, Surgery and Experimental Medicine, University of Ferrara, 44124 Ferrara, Italy
| | - Maurizio Rossini
- Rheumatology Unit, Department of Medicine, University of Verona, 37134 Verona, Italy;
| | - Giuseppe Guglielmi
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, 71121 Foggia, Italy;
| | - Carlo Cervellati
- Menopause and Osteoporosis Centre, University of Ferrara, 44124 Ferrara, Italy
- Department of Biomedical and Specialist Surgical Sciences, Section of Medical Biochemistry, Molecular Biology and Genetics, University of Ferrara, 44121 Ferrara, Italy; (A.T.); (N.B.)
- Correspondence: ; Tel.: +39-3480399087
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Karimi F, Dabbaghmanesh MH, Omrani GR. Association between serum uric acid and bone health in adolescents. Osteoporos Int 2019; 30:2057-2064. [PMID: 31278471 DOI: 10.1007/s00198-019-05072-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/25/2019] [Indexed: 01/03/2023]
Abstract
UNLABELLED Previous studies are suggestive of the protective role of uric acid on bone in the middle-aged and elderly. Whether this association exists in younger individuals has not been examined. This investigation showed a significant positive association between serum uric acid and bone parameters among Iranian adolescents. INTRODUCTION Uric acid (UA) might be linked to bone health, but it is unclear whether its effects on bone are limited to certain population subgroups. This study is aimed at investigating the correlation between serum uric acid levels and bone mineral density (BMD) in Iranian adolescents. METHODS This cross-sectional study was conducted on 413 (221 girls and 192 boys) Iranian adolescents aged 9-19 years. An analysis of anthropometric, biochemical parameters and bone density was performed on the participants. Measurements included serum uric acid, calcium, phosphorus, alkaline phosphatase, albumin, and vitamin D. They were divided according to their serum UA into the low UA group who had UA ≤ 6 mg/dL and the high UA group with UA > 6 mg/dL. BMD and bone mineral content (BMC) were measured in the total body, lumbar spine, and left femoral neck, using dual energy X-ray absorptiometry (DXA), and bone mineral apparent density (BMAD) was calculated. RESULTS A Pearson correlation analysis revealed a significant correlation between UA and bone parameters. In multiple regression analyses adjusted for potential confounders, serum UA was proven to be associated with BMD and BMC at all sites. There was no association between UA, serum calcium, and vitamin D concentrations. CONCLUSION Our study, as the first research on adolescents, demonstrated a higher bone density in those who had higher UA levels.
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Affiliation(s)
- F Karimi
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M H Dabbaghmanesh
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - G R Omrani
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Lee YH, Song GG. Uric acid level, gout and bone mineral density: A Mendelian randomization study. Eur J Clin Invest 2019; 49:e13156. [PMID: 31294819 DOI: 10.1111/eci.13156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/28/2019] [Accepted: 07/08/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This study aimed to examine whether the uric acid level or gout is causally associated with bone mineral density (BMD). METHOD We performed a two-sample Mendelian randomization (MR) analysis. The statistics dataset, we used was from a meta-analysis of genome-wide association studies (GWASs) on uric acid levels from 14 studies with a total of 28 141 participants of European descent, and the dataset for gout from the United Kingdom (UK) Biobank (4807 cases and 3 32 352 controls). We further used the summary statistics dataset of a GWAS on lumbar spine and femur neck (FN) BMDs of individuals of European ancestry (up to 32 735). RESULTS The instrumental variables (IVs) selected were six single nucleotide polymorphisms (SNPs) from the uric acid level GWAS data and 19 SNPs from the gout GWAS data. The inverse-variance weighted (IVW) method yielded no evidence to support a causal association between the uric acid level or gout and lumbar spine BMD (β = -.002, standard error (SE) = 0.035, P = .951; β = -.700, SE = 0.672, P = .297). MR-Egger regression revealed no causality between uric acid level, gout and lumbar spine. Similarly, the weighted median approach provided no evidence of causality between uric acid level, gout and lumbar spine BMD. The MR results on FN BMD showed similar patterns with those of the lumbar spine BMD. CONCLUSIONS Mendelian randomization analysis did not support a causal association between uric acid level, gout and lumbar spine or FN BMD.
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Affiliation(s)
- Young Ho Lee
- Department of Rheumatology, Korea University College of Medicine, Seoul, Korea
| | - Gwan Gyu Song
- Department of Rheumatology, Korea University College of Medicine, Seoul, Korea
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Kaushal N, Vohora D, Jalali RK, Jha S. Review of the Literature Examining the Association of Serum Uric Acid with Osteoporosis and Mechanistic Insights into Its Effect on Bone Metabolism. Endocr Metab Immune Disord Drug Targets 2019; 19:259-273. [DOI: 10.2174/1871530318666181102115106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 10/22/2018] [Accepted: 10/26/2018] [Indexed: 12/11/2022]
Abstract
Background And Objective:Osteoporosis is a common bone disorder that increases susceptibility to fragility bone fractures. The clinical and public health repercussions of osteoporosis are huge due to the morbidity, mortality, and cost of medical care linked with fragility fractures. Clinical assessment of osteoporotic risk factors can help to identify candidates at an early stage that will benefit from medical intervention and potentially lowering the morbidity and mortality seen with fractures and complications. Given this, research is ongoing to evaluate the association of osteoporosis with some novel or less well-studied risk factors/bio-markers such as uric acid (UA).Discussion:Uric acid’s antioxidant activity has been proposed to be one of the factors responsible for increasing longevity and lowering rates of age-related cancers during primate evolution, the level of which increased markedly due to loss of uricase enzyme activity (mutational silencing). Accumulated evidence shows that oxidative stress is the fundamental mechanism of age-related bone loss and acts via enhancing osteoclastic activity and increasing bone resorption. Antioxidant substances such as ascorbic acid scavenge free radicals are positively related to bone health. Thus, it is hypothesized that uric acid holds bone-protective potential owing to its potent antioxidative property. Several correlation studies have been conducted globally to investigate the relationship between serum uric acid with bone mineral density and osteoporosis. Few pre-clinical studies have tried to investigate the interaction between uric acid and bone mineral density and reported important role played via Runt-related transcription factor 2 (RUNX2)/core-binding factor subunit alpha-1 (CBF-alpha-1), Wingless-related integration site (Wnt)-3a/β-catenin signaling pathway and 11β Hydroxysteroid Dehydrogenase type 1.Conclusion:In this review, the authors provided a comprehensive summary of the literature related to association studies reported in humans as well work done until date to understand the potential cellular and molecular mechanisms that interplay between uric acid and bone metabolism.
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Affiliation(s)
- Neelam Kaushal
- Pharmaceutical Medicine, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Divya Vohora
- Pharmaceutical Medicine, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Rajinder K Jalali
- Medical Affairs & Clinical Research, Sun Pharmaceutical Industries Limited, Gurgaon, India
| | - Sujeet Jha
- Institute of Endocrinology, Diabetes and Metabolism, Max Healthcare Inst. Ltd, India
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Luo Q, Liu S, Xie L, Yu Y, Zhou L, Feng Y, Cai D. Resveratrol Ameliorates Glucocorticoid-Induced Bone Damage in a Zebrafish Model. Front Pharmacol 2019; 10:195. [PMID: 30971915 PMCID: PMC6444061 DOI: 10.3389/fphar.2019.00195] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 02/15/2019] [Indexed: 12/11/2022] Open
Abstract
Resveratrol (Res) is a multi-functional polyphenol compound that has protective functions in cardiovascular and neurodegenerative diseases. This study aimed to determine the effect of Res on osteogenic differentiation and bone mineralization in zebrafish (Danio rerio) with dexamethasone (Dex)-induced bone damage. Our results showed that Dex exposure (15 μmol/l) decreased the green fluorescence areas and the integrated optic density (IOD) values in the skull bones of zebrafish larvae of the TG(SP7:EGFP) strain in a dose-dependent manner (p < 0.01). Furthermore, Dex exposure decreased the alizarin red S-stained areas (bone mineralization area) in the skeleton and spinal bones of zebrafish larvae of the AB strain in a dose-dependent manner (p < 0.01). By contrast, Res treatment (150 μmol/l) significantly increased both the green fluorescence and bone mineralization area in Dex-exposed zebrafish larvae. Thus, our data show that Res improves bone mineralization after glucocorticoid-induced bone damage in a zebrafish model. Res may be a candidate drug for the prevention of osteoporosis.
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Affiliation(s)
- Qun Luo
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Pharmacy, The Central People's Hospital of Zhanjiang, Zhanjiang, China
| | - Shengbo Liu
- First Clinical Medical College, Guangdong Medical University, Zhanjiang, China
| | - Liming Xie
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yongjie Yu
- School of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Limin Zhou
- School of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Yuzhen Feng
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - De Cai
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Bone Marrow Derived Extracellular Vesicles Activate Osteoclast Differentiation in Traumatic Brain Injury Induced Bone Loss. Cells 2019; 8:cells8010063. [PMID: 30658394 PMCID: PMC6356398 DOI: 10.3390/cells8010063] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/21/2018] [Accepted: 01/11/2019] [Indexed: 01/08/2023] Open
Abstract
Traumatic brain injury (TBI) is a major source of worldwide morbidity and mortality. Patients suffering from TBI exhibit a higher susceptibility to bone loss and an increased rate of bone fractures; however, the underlying mechanisms remain poorly defined. Herein, we observed significantly lower bone quality and elevated levels of inflammation in bone and bone marrow niche after controlled cortical impact-induced TBI in in vivo CD-1 mice. Further, we identified dysregulated NF-κB signaling, an established mediator of osteoclast differentiation and bone loss, within the bone marrow niche of TBI mice. Ex vivo studies revealed increased osteoclast differentiation in bone marrow-derived cells from TBI mice, as compared to sham injured mice. We also found bone marrow derived extracellular vesicles (EVs) from TBI mice enhanced the colony forming ability and osteoclast differentiation efficacy and activated NF-κB signaling genes in bone marrow-derived cells. Additionally, we showed that miRNA-1224 up-regulated in bone marrow-derived EVs cargo of TBI. Taken together, we provide evidence that TBI-induced inflammatory stress on bone and the bone marrow niche may activate NF-κB leading to accelerated bone loss. Targeted inhibition of these signaling pathways may reverse TBI-induced bone loss and reduce fracture rates.
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Luo Q, Liu S, Xie L, Yu Y, Zhou L, Feng Y, Cai D. Resveratrol Ameliorates Glucocorticoid-Induced Bone Damage in a Zebrafish Model. Front Pharmacol 2019. [PMID: 30971915 DOI: 10.3389/fphar.2019.00195.ecollection2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023] Open
Abstract
Resveratrol (Res) is a multi-functional polyphenol compound that has protective functions in cardiovascular and neurodegenerative diseases. This study aimed to determine the effect of Res on osteogenic differentiation and bone mineralization in zebrafish (Danio rerio) with dexamethasone (Dex)-induced bone damage. Our results showed that Dex exposure (15 μmol/l) decreased the green fluorescence areas and the integrated optic density (IOD) values in the skull bones of zebrafish larvae of the TG(SP7:EGFP) strain in a dose-dependent manner (p < 0.01). Furthermore, Dex exposure decreased the alizarin red S-stained areas (bone mineralization area) in the skeleton and spinal bones of zebrafish larvae of the AB strain in a dose-dependent manner (p < 0.01). By contrast, Res treatment (150 μmol/l) significantly increased both the green fluorescence and bone mineralization area in Dex-exposed zebrafish larvae. Thus, our data show that Res improves bone mineralization after glucocorticoid-induced bone damage in a zebrafish model. Res may be a candidate drug for the prevention of osteoporosis.
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Affiliation(s)
- Qun Luo
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Department of Pharmacy, The Central People's Hospital of Zhanjiang, Zhanjiang, China
| | - Shengbo Liu
- First Clinical Medical College, Guangdong Medical University, Zhanjiang, China
| | - Liming Xie
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yongjie Yu
- School of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Limin Zhou
- School of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Yuzhen Feng
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - De Cai
- Department of Pharmacy, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Dong XL, Yu WX, Li CM, He S, Zhou LP, Poon CW, Wong MS. Danshen (Salvia miltiorrhiza) protects ovariectomized rats fed with high-saturated fat-sucrose diet from bone loss. Osteoporos Int 2018; 29:223-235. [PMID: 29058051 DOI: 10.1007/s00198-017-4254-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 10/04/2017] [Indexed: 12/15/2022]
Abstract
UNLABELLED Dietary patterns may interfere with the efficacy of herbal intervention. Our results demonstrated the protective effects of Salvia miltiorrhiza aqueous extract (SMA) on bone metabolism were influenced by levels of dietary fat and sucrose in ovariectomized (OVX) rats through its actions on attenuating lipid deposition and oxidative stress in rats. INTRODUCTION Salvia miltiorrhiza (SM), also known as Danshen, has been tested as an osteoporosis treatment in a series of small, short human trials that generally report improvements in bone property. However, dietary patterns may interfere with the effects of herbal intervention. We hypothesized that dietary fat and sucrose levels could influence the effects of SM supplementation on bone in estrogen-deficient animals. METHODS Six-month-old Sprague-Dawley sham or OVX rats were fed either a low-saturated fat-sucrose (LFS, a diet that was similar in composition to normal rat chow) or a high-fat-sucrose (HFS) diet and OVX rats were treated (8 rats/group) with SM aqueous extract (SMA, 600 mg/kg/day), 17β-estradiol (1 mg/kg/day), or vehicle for 12 weeks. RESULTS SMA significantly improved bone properties as revealed by the increase in trabecular bone mineral density and decrease in trabecular separation at proximal metaphysis of the tibia (PT) in HFS-fed OVX rats, but not in LFS-fed OVX rats. SMA greatly reduced lipid deposition and malondialdehyde levels, improved the activities of superoxide dismutase, catalase, and glutathione peroxidase in the livers of HFS-fed OVX rats. SMA could directly improve the proliferation and differentiation in vitro in an H2O2-induced preosteoblast cell model by attenuating cellular reactive oxygen species levels. CONCLUSIONS The protective effects of SMA on bone metabolism were influenced by dietary fat and sucrose levels in OVX rats. The ability of SMA to reduce bone loss in HFS-fed OVX rats was associated with the attenuation of lipid deposition and oxidative stress levels.
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Affiliation(s)
- X L Dong
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, People's Republic of China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - W X Yu
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, People's Republic of China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - C M Li
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, People's Republic of China
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical College, Guangzhou, People's Republic of China
| | - S He
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - L P Zhou
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - C W Poon
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China
| | - M S Wong
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, People's Republic of China.
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Y806, Hung Hom, Kowloon, Hong Kong, People's Republic of China.
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Han W, Bai X, Wang N, Han L, Sun X, Chen X. Association between lumbar bone mineral density and serum uric acid in postmenopausal women: a cross-sectional study of healthy Chinese population. Arch Osteoporos 2017; 12:50. [PMID: 28527105 DOI: 10.1007/s11657-017-0345-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 05/04/2017] [Indexed: 02/03/2023]
Abstract
UNLABELLED Partial correlation and regression analyses were used in this study. We showed that there is a linear relationship between bone mineral density and serum uric acid within the normal physiologic range, and higher serum uric acid levels had a protective effect on bone loss in postmenopausal osteoporosis. PURPOSE The significance of the relationship between lumbar bone mineral density (BMD) and serum uric acid (SUA) levels is unclear. The aims of this study were to investigate on a population-level the association between lumbar BMD and SUA within the normal physiologic range and to determine whether SUA plays a protective role in bone loss in healthy postmenopausal Chinese women. METHODS This was a community-based cross-sectional study involving 390 healthy postmenopausal women, 47-89 years of age, conducted in Shenyang, China. The BMD was measured at the lumbar spine using dual-energy X-ray absorptiometry (DXA). The SUA levels were obtained at each DXA visit. Partial correlation and regression analyses were applied to determine the associations. RESULTS The SUA levels were significantly different between the normal BMD, osteopenia, and osteoporosis groups. The lumbar BMD was positively correlated with SUA in postmenopausal women after adjustment for age (r = 0.212). After adjustment for age, body mass index, systolic blood pressure, diastolic blood pressure, hip circumference, cigarette smoking, alcohol consumption, milk intake, physical exercise, fracture history, total protein, total bilirubin, triglycerides, total cholesterol, high-density lipoprotein cholesterol, fasting blood glucose, serum calcium, and estimated glomerular filtration rate, the lumbar BMD was associated with SUA and the odds ratio of the third SUA quartile was 0.408 (95%CI, 0.198-0.841, P = 0.015), compared to the first quartile of SUA levels. CONCLUSION The lumbar BMD was linearly associated with SUA levels within the normal physiologic range of postmenopausal women. Higher SUA levels had a protective effect on bone loss in postmenopausal osteoporosis.
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Affiliation(s)
- Wen Han
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, China
| | - Xiaojuan Bai
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, China.
| | - Nan Wang
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, China
| | - Lulu Han
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, China
| | - Xuefeng Sun
- Department of Kidney, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Xiangmei Chen
- Department of Kidney, General Hospital of Chinese People's Liberation Army, Beijing, China
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27
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Pirro M, Mannarino MR, Bianconi V, De Vuono S, Sahebkar A, Bagaglia F, Franceschini L, Scarponi AM, Mannarino E, Merriman T. Uric acid and bone mineral density in postmenopausal osteoporotic women: the link lies within the fat. Osteoporos Int 2017; 28:973-981. [PMID: 27725998 DOI: 10.1007/s00198-016-3792-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/26/2016] [Indexed: 12/14/2022]
Abstract
UNLABELLED The association between serum uric acid (SUA) levels and bone mineral density (BMD) is controversial. Fat accumulation is linked to SUA and BMD, thus possibly explaining the mixed results. We found that adiposity drives part of the association between SUA and BMD in women with postmenopausal osteoporosis. INTRODUCTION Both positive and negative associations between SUA and BMD have been reported. SUA levels and BMD increase with higher body weight and other indices of adiposity; hence, the association between SUA and BMD might be a consequence of the confounding effect of adiposity. We investigated in this cross-sectional study whether the association between SUA and BMD is independent of measures of fat accumulation and other potential confounders. METHODS SUA levels, femur BMD, markers of bone metabolism, body mass index (BMI), fat mass (FM), waist circumference (WC), and abdominal visceral fat area were measured in 180 treatment-naive postmenopausal osteoporotic women (mean age 66.3 ± 8.5 years, age range 48-81 years). RESULTS Women with higher SUA levels (third tertile) had significantly higher femur BMD and lower cross-linked C-terminal telopeptide of type I collagen (CTX) and bone alkaline phosphatase (bALP) levels. SUA levels were positively associated with all indices of adiposity. In multivariable analysis with femur BMD as dependent variable, the association between logarithmic (LG)-transformed SUA levels and BMD (beta = 0.42, p < 0.001) was lessened progressively by the different indices of adiposity, like LG-BMI (beta = 0.22, p = 0.007), LG-WC (beta = 0.21, p = 0.01), LG-FM (beta = 0.18, p = 0.01), and LG-abdominal visceral fat area (beta = 0.12, p = 0.05). The association between SUA levels and markers of bone metabolism was dependent on the effect of confounders. CONCLUSION In postmenopausal osteoporotic women, the strong univariable association between SUA levels and femur BMD is partly explained by the confounding effect of indices of adiposity.
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Affiliation(s)
- M Pirro
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy.
- Hospital "Santa Maria della Misericordia", Piazzale Menghini, 1, 06129, Perugia, Italy.
| | - M R Mannarino
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - V Bianconi
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - S De Vuono
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - A Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran
- Metabolic Research Centre, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - F Bagaglia
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - L Franceschini
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - A M Scarponi
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - E Mannarino
- Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine, University of Perugia, Perugia, Italy
| | - T Merriman
- Department of Biochemistry, University of Otago, Otago, New Zealand
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Cervellati C, Bergamini CM. Oxidative damage and the pathogenesis of menopause related disturbances and diseases. Clin Chem Lab Med 2017; 54:739-53. [PMID: 26544103 DOI: 10.1515/cclm-2015-0807] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/18/2015] [Indexed: 12/24/2022]
Abstract
The postmenopausal phase of life is frequently associated in women with subjective symptoms (e.g. vasomotor) and real diseases (atherosclerosis with coronary ischemia, osteoporosis, Alzheimer-type neurodegeneration, urogenital dystrophy), which together determine the post-menopausal syndrome. Observations that oxidative damage by reactive oxygen/nitrogen species in experimental models can contribute to the pathogenesis of these disturbances stimulated research on the relationships between menopause, its endocrine deficiency, oxidative balance and the "wellness" in postmenopausal life. The connection among these events is probably due to the loss of protective actions exerted by estrogens during the fertile life. Most recent studies have revealed that estrogens exert an antioxidant action not by direct chemical neutralization of reactants as it was expected until recently but by modulating the expression of antioxidant enzymes that control levels of biological reducing agents. Also nutritional antioxidants apparently act by a similar mechanism. From this perspective it is conceivable that a cumulative control of body oxidant challenges and biological defenses could help in monitoring between "normal" and "pathological" menopause. However, as clinical studies failed to confirm this scenario in vivo, we have decided to review the existing literature to understand the causes of this discrepancy and whether this was due to methodologic reasons or to real failure of the basic hypothesis.
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Veronese N, Carraro S, Bano G, Trevisan C, Solmi M, Luchini C, Manzato E, Caccialanza R, Sergi G, Nicetto D, Cereda E. Hyperuricemia protects against low bone mineral density, osteoporosis and fractures: a systematic review and meta-analysis. Eur J Clin Invest 2016; 46:920-930. [PMID: 27636234 DOI: 10.1111/eci.12677] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Serum uric acid (SUA) accounts for about 50% of extracellular antioxidant activity, suggesting that hyperuricemia may have a protective role in diseases characterized by high levels of oxidative stress, such as osteoporosis. We aimed to meta-analyse data regarding bone mineral density (BMD), osteoporosis and fractures in people with higher SUA vs. lower SUA concentrations. MATERIALS AND METHODS Two investigators conducted a literature search using PubMed and Scopus, without language restrictions. Standardized mean differences (SMDs) and 95% confidence intervals (CIs) were used for BMD; risk ratios (RRs) and adjusted odds ratios (ORs) for cross-sectional data. Most possible adjusted hazard ratios (HRs) were used to assess the association between baseline SUA and incident fractures. RESULTS Of 1405 initial hits, 19 studies were eligible including a total of 55 859 participants. Subjects with higher SUA levels had significantly higher BMD values for the spine (six studies; SMD = 0·29; 95% CI: 0·22-0·35; I2 = 47%), total hip (seven studies; SMD = 0·29; 95% CI: 0·24-0·34; I2 = 33%) and femoral neck (six studies; SMD = 0·25; 95% CI: 0·16-0·34; I2 = 71%). Simple correlation analyses substantially confirmed these findings. An increase of one standard deviation in SUA levels reduced the number of new fractures at follow-up (three studies; HR = 0·83; 95% CI: 0·74-0·92; I2 = 0%). No significant differences between men and women emerged, although data about women were limited. CONCLUSIONS Hyperuricemia was found independently associated with BMD and fractures, supporting a protective role for uric acid in bone metabolism disorders.
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Affiliation(s)
- Nicola Veronese
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy. .,Institute for Clinical Research and Education in Medicine (IREM), Padova, Italy.
| | - Sara Carraro
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy
| | - Giulia Bano
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy
| | - Caterina Trevisan
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy
| | - Marco Solmi
- Institute for Clinical Research and Education in Medicine (IREM), Padova, Italy.,Department of Neurosciences, University of Padova, Padova, Italy
| | - Claudio Luchini
- Department of Neurosciences, University of Padova, Padova, Italy.,Department of Pathology and Diagnostics, Verona University and Hospital Trust, Verona, Italy
| | - Enzo Manzato
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy.,National Research Council, Aging Branch, Institute of Neuroscience, Padova, Italy
| | - Riccardo Caccialanza
- Nutrition and Dietetics Service, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giuseppe Sergi
- Geriatrics Section, Department of Medicine, University of Padova, Padova, Italy
| | - Davide Nicetto
- Azienda Provinciale per i Servizi Sanitari (APSS) Trento, Trento, Italy
| | - Emanuele Cereda
- Nutrition and Dietetics Service, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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Zhu FB, Wang JY, Zhang YL, Hu YG, Yue ZS, Zeng LR, Zheng WJ, Hou Q, Yan SG, Quan RF. Mechanisms underlying the antiapoptotic and anti-inflammatory effects of monotropein in hydrogen peroxide-treated osteoblasts. Mol Med Rep 2016; 14:5377-5384. [PMID: 27840925 DOI: 10.3892/mmr.2016.5908] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/17/2016] [Indexed: 11/05/2022] Open
Abstract
Monotropein, the primary iridoid glycoside isolated from Morindacitrifolia, has been previously reported to possess potent antioxidant and antiosteoporotic properties. However, there is no direct evidence correlating the antiosteoporotic effect of monotropein with its observed antioxidant capacity, and the molecular mechanisms involved in mediating these processes remain unclear. Therefore, the aim of the present study was to investigate the protective effects of monotropein against oxidative stress in osteoblasts and the mechanisms involved in mediating this process. Osteoblast viability was evaluated using the MTT assay. The mitochondrial membrane potential and reactive oxygen species were detected by flow cytometry analyses. Western blotting and enzyme‑linked immunosorbent assays were performed to detect protein expression levels. A significant reduction in osteoblast viability was observed at 24 h following exposure to various concentrations (100‑1,000 µM) of H2O2 compared with untreated osteoblasts. The cytotoxic effect of H2O2 was notably reversed when osteoblasts were pretreated with 1‑10 µg/ml monotropein. Pretreatment with 1-10 µg/ml monotropein increased the mitochondrial membrane potential and reduced the generation of reactive oxygen species in osteoblasts following exposure to H2O2. In addition, the H2O2‑induced increase in apoptotic markers (caspase-3 and caspase-9) and H2O2-induced reduction in sirtuin 1 levels were significantly reversed following pretreatment of cells with monotropein. Furthermore, monotropein significantly reduced H2O2‑induced stimulation of NF‑κB expression, in addition to the expression of a number of proinflammatory mediators. These results indicate that monotropein suppresses apoptosis and the inflammatory response in H2O2‑induced osteoblasts through the activation of the mitochondrial apoptotic signaling pathway and inhibition of the NF‑κB signaling pathway.
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Affiliation(s)
- Fang-Bing Zhu
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Jian-Yue Wang
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Ying-Liang Zhang
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Yun-Gen Hu
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Zhen-Shuang Yue
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Lin-Ru Zeng
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Wen-Jie Zheng
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Qiao Hou
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
| | - Shi-Gui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Ren-Fu Quan
- Department of Orthopedic Surgery, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou, Zhejiang 311200, P.R. China
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Xiong A, Yao Q, He J, Fu W, Yu J, Zhang Z. No causal effect of serum urate on bone-related outcomes among a population of postmenopausal women and elderly men of Chinese Han ethnicity--a Mendelian randomization study. Osteoporos Int 2016; 27:1031-1039. [PMID: 26588908 DOI: 10.1007/s00198-015-3341-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/24/2015] [Indexed: 02/04/2023]
Abstract
SUMMARY We conducted a Mendelian randomization analysis to assess the effect of serum uric acid on bone-related outcomes using a weighted urate transporter genetic risk score as the instrumental variable. The results showed no significance. Our study identified no evidence of a causal role between uric acid and bone-related outcomes. INTRODUCTION Observational studies have associated elevated levels of serum uric acid (SUA) with increasing bone mineral density (BMD) and a lowered prevalence of osteoporotic fractures (OFs) in postmenopausal women and elderly men. However, due to unmeasured confounding variables, these observational studies have not provided insight into the causal relationship between SUA and bone-related outcomes. Our aim was to evaluate the effect of SUA on bone-related outcomes using Mendelian randomization. METHODS We recruited 1322 Chinese Han individuals (214 elderly men and 1108 postmenopausal women) from the Shanghai area in China. Mendelian randomization using a two-stage least-squares regression method was conducted with SUA as the exposure variable, a weighted urate transporter genetic risk score as the instrumental variable, and all-site BMD, bone turnover markers, and levels of 25-hydroxyvitamin D3 [25(OH)D], serum calcium (Ca), serum phosphorus (P), and parathyroid hormone (PTH) as outcome variables. RESULTS Strong associations between SUA and bone-related outcomes were observed in an ordinary observational analysis (lumbar spine: beta = 0.122, p < 0.0001; hip: beta = 0.104, p < 0.0001; femoral neck: beta = 0.108, p < 0.0001). However, the Mendelian randomization analysis showed no evidence for a causal association of SUA with BMD (lumbar spine: beta = 0.385, p = 0.257; hip: beta = 0.191, p = 0.499; femoral neck: beta = 0.194, p = 0.533). Similar results were found between SUA and other bone-related phenotypes. CONCLUSIONS Our study identified no evidence of a causal role between SUA and bone-related outcomes, although strong associations in an observational analysis were observed in a population of postmenopausal women and elderly men.
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Affiliation(s)
- A Xiong
- Geriatric Department of Ningbo First Hospital, 59 Liu-Ting St, Ningbo, 315010, China
| | - Q Yao
- Geriatric Department of Ningbo First Hospital, 59 Liu-Ting St, Ningbo, 315010, China
| | - J He
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Diseases, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yi-Shan Rd, Shanghai, 200233, China
| | - W Fu
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Diseases, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yi-Shan Rd, Shanghai, 200233, China
| | - J Yu
- Geriatric Department of Ningbo First Hospital, 59 Liu-Ting St, Ningbo, 315010, China.
| | - Z Zhang
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Diseases, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yi-Shan Rd, Shanghai, 200233, China.
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Ragab SM, Badr EA, Ibrahim AS. Evaluation of Glutathione-S-Transferase P1 Polymorphism and its Relation to Bone Mineral Density in Egyptian Children and Adolescents with Beta-Thalassemia Major. Mediterr J Hematol Infect Dis 2016; 8:e2016004. [PMID: 26740865 PMCID: PMC4696466 DOI: 10.4084/mjhid.2016.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 12/01/2015] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Osteoporosis is a major complication of beta thalassemia major (TM). Increased oxidative stress and its controlling genes were linked to osteoporosis. Ile105 Val variant is a functional polymorphism of Glutathione S-transferase P1 (GSTP1), with reduced anti-oxidative property. No data are available about this variant or its association with osteoporosis among thalassemia patients yet. OBJECTIVES To investigate Ile105Val polymorphism and its possible association with bone mineral density (BMD) values in a group of TM children. METHODS Thirty five TM children and 30 age and sex matched healthy controls were included. Liver and renal functions, serum ferritin, calcium, phosphorous, alkaline phosphatase and osteocalcin were assayed. BMD was determined by DXA with calculation of Z-scores at lumbar spine (LS) and femoral neck (FN). Height for age Z- score (HAZ) adjusted BMD Z-scores were calculated. GSTP1 Ile105Val polymorphism was studied by polymerase chain reaction-restriction fragment length polymorphism. RESULTS The relative frequency of 105 Val allele was significantly higher in TM patients than the controls (p<0.0001). Significant association between genotype subgroups and BMD parameters was detected. Compared to wild homozygotes, polymorphic homozygotes had lower LS-BMD (p =0.029), LS-BMD Z -score (p=0.008 ), LS- BMD haz - Z-score (p=0.011), FN- BMD (p= 0.001), FN- BMD Z -score (p=0.02) and FN-BMD haz - Z-score (p=0.001). They exhibited higher osteocalcin levels compared to heterozygotes and wild homozygotes (p=0.012, p=0.013, respectively). CONCLUSION Ile105Val polymorphism was frequent among TM patients and could increase their susceptibility to reduced BMD. Large sample studies are required to confirm these findings.
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Affiliation(s)
- Seham M. Ragab
- Departments of Pediatrics, Faculty of Medicine, Menoufia University, NaserStreet, Shebeen El-koom, Menoufia, Egypt
| | - Eman A. Badr
- Medical Biochemistry, Faculty of Medicine, Menoufia University, NaserStreet, Shebeen El-koom, Menoufia, Egypt
| | - Ahmed S. Ibrahim
- Departments of Pediatrics, Faculty of Medicine, Menoufia University, NaserStreet, Shebeen El-koom, Menoufia, Egypt
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Ansar S, Alhefdhi T, Aleem AM. Status of trace elements and antioxidants in premenopausal and postmenopausal phase of life: a comparative study. Int J Clin Exp Med 2015; 8:19486-19490. [PMID: 26770597 PMCID: PMC4694497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
The aim of the study was to determine the extent of free radical damage in the form of oxidative stress, the antioxidant status and correlate with trace element levels in postmenopausal females as compared to premenopausal females. Participants between the ages of 30-60 years were recruited for the study and status of antioxidant enzymes and trace metals level was determined. The serum Calcium (Ca) levels after menopause was higher than that of the premenopausal group (P<0.001). The changes in copper (Cu) and Zinc (Zn) between the groups were not significant (p>0.05). In postmenopausal women, antioxidant enzymes like superoxide dismutase (SOD) and glutathione peroxidase (GPX), catalase (CAT) significantly decreased (P<0.001) in postmenopausal women showing oxidative stress in the cells. Concentrations of vitamin-C pointed out a significant decrease (P<0.05) in postmenopausal women when compared with premenopausal women.
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Affiliation(s)
- Sabah Ansar
- Clinical Laboratory Sciences, College of Applied Medical Science, King Saud UniversityRiyadh, Saudi Arabia
| | - Tayef Alhefdhi
- Clinical Laboratory Sciences, College of Applied Medical Science, King Saud UniversityRiyadh, Saudi Arabia
| | - Ansari M Aleem
- Department of Chemistry and Biochemistry, University of CaliforniaSanta Cruz, CA, USA
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