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Chen L, Wang X, Tian S, Zhou L, Wang L, Liu X, Yang Z, Fu G, Liu X, Ding C, Zou D. Integrin-linked kinase control dental pulp stem cell senescence via the mTOR signaling pathway. Stem Cells 2024; 42:861-873. [PMID: 39169713 PMCID: PMC11464141 DOI: 10.1093/stmcls/sxae047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 06/25/2024] [Indexed: 08/23/2024]
Abstract
Human dental pulp stem cells (HDPSCs) showed an age-dependent decline in proliferation and differentiation capacity. Decline in proliferation and differentiation capacity affects the dental stromal tissue homeostasis and impairs the regenerative capability of HDPSCs. However, which age-correlated proteins regulate the senescence of HDPSCs remain unknown. Our study investigated the proteomic characteristics of HDPSCs isolated from subjects of different ages and explored the molecular mechanism of age-related changes in HDPSCs. Our study showed that the proliferation and osteogenic differentiation of HDPSCs were decreased, while the expression of aging-related genes (p21, p53) and proportion of senescence-associated β-galactosidase (SA-β-gal)-positive cells were increased with aging. The bioinformatic analysis identified that significant proteins positively correlated with age were enriched in response to the mammalian target of rapamycin (mTOR) signaling pathway (ILK, MAPK3, mTOR, STAT1, and STAT3). We demonstrated that OSU-T315, an inhibitor of integrin-linked kinase (ILK), rejuvenated aged HDPSCs, similar to rapamycin (an inhibitor of mTOR). Treatment with OSU-T315 decreased the expression of aging-related genes (p21, p53) and proportion of SA-β-gal-positive cells in HDPSCs isolated from old (O-HDPSCs). Additionally, OSU-T315 promoted the osteoblastic differentiation capacity of O-HDPSCs in vitro and bone regeneration of O-HDPSCs in rat calvarial bone defects model. Our study indicated that the proliferation and osteoblastic differentiation of HDPSCs were impaired with aging. Notably, the ILK/AKT/mTOR/STAT1 signaling pathway may be a major factor in the regulation of HDPSC senescence, which help to provide interventions for HDPSC senescence.
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Affiliation(s)
- Lu Chen
- Department of Oral Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, People’s Republic of China
| | - Xiping Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, People’s Republic of China
| | - Sha Tian
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai 200433, People’s Republic of China
| | - Linxi Zhou
- Department of Orthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Li Wang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, People’s Republic of China
| | - Xiaohan Liu
- Department of Oral Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, People’s Republic of China
| | - Zihan Yang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, People’s Republic of China
| | - Guiqiang Fu
- Stomatology Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, People’s Republic of China
| | - Xingguang Liu
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai 200433, People’s Republic of China
| | - Chen Ding
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Fudan University, Shanghai 200433, People’s Republic of China
| | - Duohong Zou
- Department of Oral Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, People’s Republic of China
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, People’s Republic of China
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Horoz L, Cakmak MF, Cici H. Efficacy of poller screw in addition to lag screw in the treatment of intertrochanteric fractures with proximal femoral nail: a biomechanical evaluation. Eur J Trauma Emerg Surg 2024; 50:1591-1598. [PMID: 38480566 DOI: 10.1007/s00068-024-02477-z] [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: 11/06/2023] [Accepted: 02/19/2024] [Indexed: 10/08/2024]
Abstract
PURPOSE The most common type of failure in treating intertrochanteric fractures with proximal femoral nails is cut-out due to varus collapse. We aim to evaluate the effect of the poller screw applied to the proximal fragment and the lag screw on varus collapse and stability in intertrochanteric fractures. METHODS An unstable intertrochanteric fracture model without medial support was simulated in 20 synthetic femur models. In the poller screw group, in addition to the lag screw, pole screws were applied to the proximal fragment superior and inferior to the lag screw. In the progressive cyclic loading test, starting from 100 N, the loading was increased by 50 N in each cycle, and the test was continued until the maximum load at which failure occurred as a result of conditioning cycles and progressive cyclic loading tests, stiffness, type of failure, force at failure, lag screw displacement, and varus collapse were recorded. RESULT The average stiffness was found to be 124.705 N/mm in the poller screw group and 102.77 N/mm in the control group (P < 0.001). The maximum load to failure was 1897.10 N in the poller screw group and 1475.20 N in the control group (P < 0.001). The average displacement of the lag screw within the femoral head was 0.85 mm in the poller screw group and 3.60 mm in the control group (P < 0.001). CONCLUSION As a result, it has been shown that poller screws applied around the lag screw increase fixation stiffness and reduce varus collapse.
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Affiliation(s)
- Levent Horoz
- Kirsehir Ahi Evran University, Kırşehir, Turkey.
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Zeng G, Lin Y, Xie P, Lin J, He Y, Wei J. Relationship of the Neutrophil-Lymphocyte Ratio with All-Cause and Cardiovascular Mortality in Patients with Diabetic Kidney Disease: A Prospective Cohort Study of NHANES Study. J Multidiscip Healthc 2024; 17:2461-2473. [PMID: 38799017 PMCID: PMC11127657 DOI: 10.2147/jmdh.s465317] [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: 02/22/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
Background To investigate the association between the NLR and the risk of all-cause and cardiovascular mortality in US adults with diabetic kidney disease (DKD). Methods The data utilized for this analysis were sourced from ten National Health and Nutrition Examination Survey cycles (1999-2018) with mortality data (up to 31 December 2019) via linkage to the National Death Index. The optimum NLR threshold for predicting survival outcomes was determined through the maximally selected rank statistics. Restricted cubic spline (RCS), weighted Cox proportional hazard regression, stratified analyses, and time-dependent receiver-operating characteristic curve (ROC) were employed to delineate the prospective correlations of the NLR with both all-cause and cardiovascular mortality. Results In this investigation, a cohort comprising 2581 patients diagnosed with DKD was examined, encompassing 624 individuals with a higher NLR (≥3.07) and 1957 subjects with a lower NLR (<3.07). Over a median follow-up of 79 months (interquartile range, 44-128 months), 1103 deaths occurred, including 397 from cardiovascular causes and 706 from non-cardiovascular causes. The RCS analysis elucidated the positive linear correlation (both nonlinear P > 0.05). In the multivariable analyses, each one-unit increase in the NLR value was correlated with a 51% increased risk of all-cause mortality (1.51(1.28, 1.77)) and a 71% increased risk of cardiovascular mortality (1.71(1.32, 2.21)). The results were largely consistent across stratified analyses encompassing variables such as age, sex, race/ethnicity, marital status, family income, education levels, BMI, drinking status, smoking status, hypertension, CVD, and anti-infective drugs (P for interaction >0.05 for all). Time-dependent ROC analyses underscored the NLR's credible predictive efficacy for both short-term and extended durations in forecasting both all-cause and cardiovascular mortality. Conclusion The findings emphasize the promising use of the NLR in stratifying and prognosticating the risk of mortality in DKD in clinical practice.
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Affiliation(s)
- Guixing Zeng
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Yujie Lin
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Peirui Xie
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Jiarong Lin
- Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, People’s Republic of China
| | - Yaxing He
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, People’s Republic of China
| | - Junping Wei
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
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Li Q, Peng L, Wang Y, Yang Y, Wang Z. Risk factors for low back pain in the Chinese population: a systematic review and meta-analysis. BMC Public Health 2024; 24:1181. [PMID: 38671417 PMCID: PMC11055313 DOI: 10.1186/s12889-024-18510-0] [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: 11/29/2023] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND In China, the world's largest developing country, low back pain (LBP) is a common public health issue affecting workability. This meta-analysis aimed to systematically assess the risk factors of LBP in the Chinese population. METHODS Four English language and four Chinese databases were searched, and cross-sectional studies on the risk factors for LBP in Chinese populations were identified and collected. The search timeframe covered the period from the establishment of the database to November 2023. Two researchers independently reviewed the literature, extracted the data, and evaluated the risk of bias. Begg's and Egger's tests were used to evaluate publication bias. RESULTS Fifteen cross-sectional studies involving 86,575 people were included. Seven risk factors for LBP were identified. Six risk factors were statistically significant: Cigarette smoking (odds ratio [OR] = 1.55; 95% confidence interval [CI]: 1.15, 2.08, P = 0.004, I2 = 72%), body mass index (BMI) ≥ 28 kg/m² (OR = 4.51; 95% CI: 3.36, 6.07, P < 0.00001, I2 = 8%), female sex (OR = 1.54; 95% CI: 1.25, 1.90, P < 0.0001, I2 = 63%), vibration exposure at work (OR = 1.65; 95% CI: 1.16, 2.34, P = 0.006, I2 = 84%), working overtime (OR = 2.57; 95% CI: 1.12, 5.91, P = 0.03, I2 = 85%), and lack of exercise (OR = 2.48; 95% CI: 1.62, 3.78, P < 0.0001, I2 = 0%). One risk factor that was not statistically significant was standing for long periods (OR = 1.02; 95% CI: 0.82, 1.26, P = 0.88, I2 = 73%). CONCLUSIONS This study found that smoking, a BMI ≥ 28 kg/m², female sex, vibration exposure at work, working overtime, and lack of exercise may be risk factors for LBP in the Chinese population. Because the included studies were cross-sectional and the certainty of the evidence was very low, the results need to be interpreted cautiously. Multicentre, high-quality studies should be conducted in the future. To reduce the prevalence of LBP, the Chinese government and hospitals must develop early screening programs and implement effective preventive and interventional measures. TRIAL REGISTRATION This study is registered in the PROSPERO database (No. CRD42023447857).
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Affiliation(s)
- Qiang Li
- Shuguang-Anhui Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Anhui University of Chinese Medicine, No. 45 Shihe Road, Shushan District, 230000, Hefei, Anhui, People's Republic of China
| | - Leyun Peng
- Shuguang-Anhui Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Anhui University of Chinese Medicine, No. 45 Shihe Road, Shushan District, 230000, Hefei, Anhui, People's Republic of China
| | - Yiding Wang
- School of Medicine, Shandong Xiandai University, No. 20288 Jingshi East Road, Licheng District, 250104, Jinan, Shandong, People's Republic of China
| | - Yonghui Yang
- Shuguang-Anhui Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Anhui University of Chinese Medicine, No. 45 Shihe Road, Shushan District, 230000, Hefei, Anhui, People's Republic of China
- The Second Affiliated Hospital of Anhui University of Chinese Medicine, No. 300 Shouchun Road, Luyang District, 230000, Hefei, Anhui, People's Republic of China
| | - Zongbao Wang
- Shuguang-Anhui Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Anhui University of Chinese Medicine, No. 45 Shihe Road, Shushan District, 230000, Hefei, Anhui, People's Republic of China.
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Mete M, Ojha A, Dhar P, Das D. Deciphering Ferroptosis: From Molecular Pathways to Machine Learning-Guided Therapeutic Innovation. Mol Biotechnol 2024:10.1007/s12033-024-01139-0. [PMID: 38613722 DOI: 10.1007/s12033-024-01139-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/11/2024] [Indexed: 04/15/2024]
Abstract
Ferroptosis is a unique form of cell death reliant on iron and lipid peroxidation. It disrupts redox balance, causing cell death by damaging the plasma membrane, with inducers acting through enzymatic pathways or transport systems. In cancer treatment, suppressing ferroptosis or circumventing it holds significant promise. Beyond cancer, ferroptosis affects aging, organs, metabolism, and nervous system. Understanding ferroptosis mechanisms holds promise for uncovering novel therapeutic strategies across a spectrum of diseases. However, detection and regulation of this regulated cell death are still mired with challenges. The dearth of cell, tissue, or organ-specific biomarkers muted the pharmacological use of ferroptosis. This review covers recent studies on ferroptosis, detailing its properties, key genes, metabolic pathways, and regulatory networks, emphasizing the interaction between cellular signaling and ferroptotic cell death. It also summarizes recent findings on ferroptosis inducers, inhibitors, and regulators, highlighting their potential therapeutic applications across diseases. The review addresses challenges in utilizing ferroptosis therapeutically and explores the use of machine learning to uncover complex patterns in ferroptosis-related data, aiding in the discovery of biomarkers, predictive models, and therapeutic targets. Finally, it discusses emerging research areas and the importance of continued investigation to harness the full therapeutic potential of targeting ferroptosis.
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Affiliation(s)
- Megha Mete
- Department of Bioengineering, National Institute of Technology Agartala, Agartala, Tripura, 799046, India
| | - Amiya Ojha
- Department of Bioengineering, National Institute of Technology Agartala, Agartala, Tripura, 799046, India
| | - Priyanka Dhar
- CSIR-Indian Institute of Chemical Biology, Kolkata, 700032, India
| | - Deeplina Das
- Department of Bioengineering, National Institute of Technology Agartala, Agartala, Tripura, 799046, India.
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Zheng B, Xu S, Lu T, Wu Y, Li H, Guo C, Haiying L. Sagittal sequence and clinical efficacy of cervical disc replacement and hybrid surgery in the treatment of cervical spondylotic myelopathy: a retrospective study. Front Surg 2024; 10:1265349. [PMID: 38249309 PMCID: PMC10797051 DOI: 10.3389/fsurg.2023.1265349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 11/13/2023] [Indexed: 01/23/2024] Open
Abstract
Background Hybrid surgery (HS) combines anterior cervical discectomy and fusion (ACDF) with cervical disc replacement (CDR) is gradually being more frequently implemented, but there are few studies reporting the safety and effectiveness of hybrid surgery in three levels cervical spondylotic myelopathy. Methods The clinical and radiographic data of patients with three-segment cervical spondylosis, who underwent CDR, ACDF and HS in our hospital from February 2007 to February 2013 were analyzed. The Visual Analog Scale (VAS), Japanese Orthopedic Association (JOA) and Neck Disability Index (NDI) were used to evaluate the clinical efficacy post surgery. Cervical spine x-rays were conducted to assess ROM, CL, T1S and relevant outcomes. Results A total of 94 patients were included in the study: 26 in the CDR group, 13 in the HS1 group, 31 in the HS2 group, and 24 in the ACDF group. Most patients in the CDR group were younger. There was no difference in the follow-up duration, blood loss volume or surgery time (P > 0.05). Four groups reported improvements in JOA and NDI scores compared to baseline. There was no significant difference in the final JOA, final NDI or recovery rate among the 4 groups. The final ROM was smaller in the ACDF group than in the other 3 groups. There was no difference among the four groups in the final UROM, final LROM or their changes. There was no difference in the final T1S, final SVA or their change among the four groups. All groups showed similar changes in CL and T1S-CL. Conclusions There was no difference in the clinical outcomes of ACDF, CDR, or hybrid surgery. CDR can better preserve the mobility of the cervical spine. Neither CDR nor hybrid surgery was significantly advantageous over ACDF in restoring the sagittal sequence in patients with three-level CSM.
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Affiliation(s)
- Bin Zheng
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
| | - Shuai Xu
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
| | - Tianliang Lu
- Orthopedics Department, The Coal Central Hospital of Shanxi Province, Taiyuan, Shanxi, China
| | - Yonghao Wu
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
| | - Haoyuan Li
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
| | - Chen Guo
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
| | - Liu Haiying
- Spine Surgery Department, Peking University People's Hospital, Beijing, China
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