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Chen DQ, Que ZQ, Xu WB, Xiao KY, Sun NK, Song HY, Feng JY, Lin GX, Rui G. Nucleotide polymorphism-based study utilizes human plasma liposomes to discover potential therapeutic targets for intervertebral disc disease. Front Endocrinol (Lausanne) 2024; 15:1403523. [PMID: 39211445 PMCID: PMC11357925 DOI: 10.3389/fendo.2024.1403523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 07/24/2024] [Indexed: 09/04/2024] Open
Abstract
Background While intervertebral disc degeneration (IVDD) is crucial in numerous spinally related illnesses and is common among the elderly, the complete understanding of its pathogenic mechanisms is still an area of ongoing study. In recent years, it has revealed that liposomes are crucial in the initiation and progression of IVDD. However, their intrinsic mediators and related mechanisms remain unclear. With the development of genomics, an increasing amount of data points to the contribution of genetics in the etiology of disease. Accordingly, this study explored the causality between liposomes and IVDD by Mendelian randomization (MR) analysis and deeply investigated the intermediary roles of undetected metabolites. Methods According to MR analysis, 179 liposomes and 1400 metabolites were evaluated for their causal association with IVDD. Single nucleotide polymorphisms (SNPs) are strongly associated with the concentrations of liposomes and metabolites. Consequently, they were employed as instrumental variables (IVs) to deduce if they constituted risk elements or protective elements for IVDD. Furthermore, mediation analysis was conducted to pinpoint possible metabolic mediators that link liposomes to IVDD. The inverse variance weighting (IVW) was the main analytical technique. Various confidence tests in the causality estimates were performed, including consistency, heterogeneity, pleiotropy, and sensitivity analyses. Inverse MR analysis was also utilized to estimate potential reverse causality. Results MR analysis identified 13 liposomes and 79 metabolites markedly relevant to IVDD. Moreover, the mediation analysis was carried out by choosing the liposome, specifically the triacylglycerol (48:2) levels, which were found to be most notably associated with an increased risk of IVDD. In all, three metabolite-associated mediators were identified (3-methylcytidine levels, inosine 5'-monophosphate (IMP) to phosphate ratio, and adenosine 5'-diphosphate (ADP) to glycine ratio). Conclusion The analysis's findings suggested possible causal connections between liposomes, metabolites, and IVDD, which could act as both forecast and prognosis clinical indicators, thereby aiding in the exploration of the pathogenesis behind IVDD.
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Affiliation(s)
- Ding-Qiang Chen
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Zhi-Qiang Que
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wen-Bin Xu
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Ke-Yi Xiao
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Nai-Kun Sun
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Hong-Yu Song
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Jin-Yi Feng
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Guang-Xun Lin
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Gang Rui
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
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Xia Q, Zhao Y, Dong H, Mao Q, Zhu L, Xia J, Weng Z, Liao W, Hu Z, Yi J, Feng S, Jiang Y, Xin Z. Progress in the study of molecular mechanisms of intervertebral disc degeneration. Biomed Pharmacother 2024; 174:116593. [PMID: 38626521 DOI: 10.1016/j.biopha.2024.116593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 04/18/2024] Open
Abstract
Degenerative intervertebral disc disease (IVDD) is one of the main spinal surgery, conditions, which markedly increases the incidence of low back pain and deteriorates the patient's quality of life, and it imposes significant social and economic burdens. The molecular pathology of IVDD is highly complex and multilateral however still not ompletely understood. New findings indicate that IVDD is closely associated with inflammation, oxidative stress, cell injury and extracellular matrix metabolismdysregulation. Symptomatic management is the main therapeutic approach adopted for IVDD, but it fails to address the basic pathological changes and the causes of the disease. However, research is still focusing on molecular aspects in terms of gene expression, growth factors and cell signaling pathways in an attempt to identify specific molecular targets for IVDD treatment. The paper summarizes the most recent achievements in molecularunderstanding of the pathogenesis of IVDD and gives evidence-based recommendations for clinical practice.
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Affiliation(s)
- Qiuqiu Xia
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Yan Zhao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Huaize Dong
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Qiming Mao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Lu Zhu
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Jiyue Xia
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Zijing Weng
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Wenbo Liao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China
| | - Zongyue Hu
- Department of Pain Rehabilitation, Affiliated Sinopharm Gezhouba Central Hospital, Third Clinical Medical College of Three Gorges University, Yichang, Hubei Province 443003, China
| | - Jiangbi Yi
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Shuai Feng
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Youhong Jiang
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; First School of Clinical Medicine, Zun yi Medical University, Zunyi 563000, China
| | - Zhijun Xin
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou 563000, China; Institut Curie, PSL Research University, CNRS UMR3244, Dynamics of Genetic Information, Sorbonne Université, Paris 75005, France.
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Segar AH, Baroncini A, Urban JPG, Fairbank J, Judge A, McCall I. Obesity increases the odds of intervertebral disc herniation and spinal stenosis; an MRI study of 1634 low back pain patients. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024; 33:915-923. [PMID: 38363366 DOI: 10.1007/s00586-024-08154-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/13/2023] [Accepted: 01/20/2024] [Indexed: 02/17/2024]
Abstract
PURPOSE The objective of this study was to examine the relationships between BMI and intervertebral disc degeneration (DD), disc herniation (DH) and spinal stenosis (SS) using a large, prospectively recruited and heterogeneous patient population. METHODS Patients were recruited through the European Genodisc Study. An experienced radiologist scored MRI images for DD, DH and SS. Multivariate linear and logistic regression analyses were used to model the relationship between these variables and BMI with adjustment for patient and MRI confounders. RESULTS We analysed 1684 patients with a mean age of 51 years and BMI of 27.2 kg/m2.
The mean DD score was 2.6 (out of 5) with greater DD severity with increasing age (R2 = 0.44). In the fully adjusted model, a 10-year increase in age and a 5 kg/m2 increase in BMI were associated, respectively, with a 0.31-unit [95% CI 0.29,0.34] and 0.04-unit [CI 0.01,0.07] increase in degeneration. Age (OR 1.23 [CI 1.06,1.43]) and BMI (OR 2.60 [CI 2.28,2.96]) were positively associated with SS. For DH, age was a negative predictor (OR 0.70 [CI 0.64,0.76]) but for BMI (OR 1.19 [CI 1.07,1.33]), the association was positive. BMI was the strongest predictor of all three features in the upper lumbar spine. CONCLUSIONS While an increase in BMI was associated with only a slight increase in DD, it was a stronger predictor for DH and SS, particularly in the upper lumbar discs, suggesting weight loss could be a useful strategy for helping prevent disorders associated with these pathologies.
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Affiliation(s)
- Anand H Segar
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK
- Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | | | - Jocelyn P G Urban
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Jeremy Fairbank
- Botnar Institute of Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK
- Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andrew Judge
- Centre for Statistics in Medicine, Nuffield, Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Nuffield Orthopaedic Centre, University of Oxford, Oxford, UK
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building, Level 1, Southmead Hospital, Bristol, UK
| | - Iain McCall
- Department of Radiology, Robert Jones and Agnes Hunt Hospital, Oswestry, UK
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Yi J, Zhou Q, Huang J, Niu S, Ji G, Zheng T. Lipid metabolism disorder promotes the development of intervertebral disc degeneration. Biomed Pharmacother 2023; 166:115401. [PMID: 37651799 DOI: 10.1016/j.biopha.2023.115401] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/22/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023] Open
Abstract
Lipid metabolism is a complex process that maintains the normal physiological function of the human body. The disorder of lipid metabolism has been implicated in various human diseases, such as cardiovascular diseases and bone diseases. Intervertebral disc degeneration (IDD), an age-related degenerative disease in the musculoskeletal system, is characterized by high morbidity, high treatment cost, and chronic recurrence. Lipid metabolism disorder may promote the pathogenesis of IDD, and the potential mechanisms are complex. Leptin, resistin, nicotinamide phosphoribosyltransferase (NAMPT), fatty acids, and cholesterol may promote the pathogenesis of IDD, while lipocalin, adiponectin, and progranulin (PGRN) exhibit protective activity against IDD development. Lipid metabolism disorder contributes to extracellular matrix (ECM) degradation, cell apoptosis, and cartilage calcification in the intervertebral discs (IVDs) by activating inflammatory responses, endoplasmic reticulum (ER) stress, and oxidative stress and inhibiting autophagy. Several lines of agents have been developed to target lipid metabolism disorder. Inhibition of lipid metabolism disorder may be an effective strategy for the therapeutic management of IDD. However, an in-depth understanding of the molecular mechanism of lipid metabolism disorder in promoting IDD development is still needed.
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Affiliation(s)
- Jun Yi
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Qingluo Zhou
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Jishang Huang
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Shuo Niu
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Guanglin Ji
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Tiansheng Zheng
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China.
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Chen HH, Hsu HT, Liao MH, Teng MS. Effects of Sex and Obesity on LEP Variant and Leptin Level Associations in Intervertebral Disc Degeneration. Int J Mol Sci 2022; 23:ijms232012275. [PMID: 36293132 PMCID: PMC9603873 DOI: 10.3390/ijms232012275] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/03/2022] [Accepted: 10/11/2022] [Indexed: 12/04/2022] Open
Abstract
Intervertebral disc degeneration (IVDD), for which obesity and genetics are known risk factors, is a chronic process that alters the structure and function of the intervertebral discs (IVD). Circulating leptin is positively correlated with body weight and is often measured to elucidate the pathogenesis of IVD degeneration. In this study, we examined the associations of LEP single nucleotide polymorphisms (SNPs) genetic and environmental effects with IVDD. A total of 303 Taiwanese patients with IVDD (mean age, 58.6 ± 12.7 years) undergoing cervical discectomy for neck pain or lumbar discectomy for back pain were enrolled. Commercially available enzyme-linked immunosorbent assay (ELISA) kits measured the circulating plasma leptin levels. TaqMan SNP genotyping assays genotyped the LEP SNPs rs2167270 and rs7799039. Leptin levels were significantly increased in obese individuals (p < 0.001) and non-obese or obese women (p < 0.001). In the dominant model, recoded minor alleles of rs2167270 and rs7799039 were associated with higher leptin levels in all individuals (p = 0.011, p = 0.012). Further, the association between these LEP SNPs and leptin levels was significant only in obese women (p = 0.025 and p = 0.008, respectively). There was an interaction effect between sex and obesity, particularly among obese women (interaction p = 0.04 and 0.02, respectively). Our findings demonstrate that these SNPs have sex-specific associations with BMI in IVDD patients, and that obesity and sex, particularly among obese women, may modify the LEP transcription effect.
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Affiliation(s)
- Hsing-Hong Chen
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 97004, Taiwan
| | - Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 97004, Taiwan
| | - Mei-Hsiu Liao
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan
| | - Ming-Sheng Teng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan
- Correspondence: ; Tel.: +886-2-6628-9779 (ext. 5790); Fax: +886-2-6628-9009
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Guo Y, Zhao H, Lu J, Xu H, Hu T, Wu D. Preoperative Lymphocyte to Monocyte Ratio as a Predictive Biomarker for Disease Severity and Spinal Fusion Failure in Lumbar Degenerative Diseases Patients Undergoing Lumbar Fusion. J Pain Res 2022; 15:2879-2891. [PMID: 36124035 PMCID: PMC9482412 DOI: 10.2147/jpr.s379453] [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: 06/28/2022] [Accepted: 09/06/2022] [Indexed: 11/23/2022] Open
Abstract
Objective This study was designed to determine whether lymphocyte to monocyte ratio (LMR) correlated with the intervertebral disc degeneration (IDD) severity and the postoperative spinal fusion rate in patients with lumbar disc disease. Methods 303 patients undergoing posterior lumbar decompression and fusion were retrospectively analyzed. An examination of the blood count was performed before surgery. The cumulative grade was calculated by summing the pfirrmann grades of all lumbar discs. Grouping was based on the 50th percentile of cumulative grade and spinal fusion. The relationship between LMR and IDD severity and spinal fusion was explored using correlation analyses and logistic regression models. The receiver operating characteristic (ROC) curve was performed to measure model discrimination, and Hosmer-Lemeshow (H-L) test was used to measure calibration. Meanwhile, the ROC curve evaluated the discrimination ability of LMR in predicting severe degeneration and fusion failure. Results LMR was significantly lower in the severe degeneration group (cumulative grade > 18) than in the mild to moderate degeneration group (cumulative grade ≤ 18). Furthermore, the LMR of the fusion group was significantly higher than that of the non-fusion group. The multivariate binary logistic models revealed that LMR was an independently influencing factor of the severe degeneration and fusion failure (OR: 0.793, 95% CI: 0.638–0.987, p = 0.038; OR: 0.371, 95% CI: 0.258–0.532, p < 0.001). The models showed excellent discrimination and calibration. The area under the curve (AUC) of severe degeneration and fusion failure identified by LMR were 0.635 and 0.643, respectively, and the corresponding cut-off values were 3.16 and 3.90. Conclusion LMR is significantly associated with the risk of severe disc degeneration and spinal fusion failure.
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Affiliation(s)
- Youfeng Guo
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
| | - Haihong Zhao
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
| | - Jiawei Lu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
| | - Haowei Xu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
| | - Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, People's Republic of China
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