Tiancheng Wang, Chuanyu Peng, Dong Gao, Chuanying Zhang, Feng Hao, Lu He
{"title":"Moxibustion's Impact on Ferroptosis Regulation: A Key to Relieving Inflammatory Injury in Rheumatoid Arthritis.","authors":"Tiancheng Wang, Chuanyu Peng, Dong Gao, Chuanying Zhang, Feng Hao, Lu He","doi":"10.1089/rej.2024.0110","DOIUrl":"https://doi.org/10.1089/rej.2024.0110","url":null,"abstract":"<p><p>To study the mechanism through which moxibustion alleviates inflammatory injury of synovial tissue in rheumatoid arthritis (RA) rats model by determining moxibustion's effect on ferroptosis regulation by the tumor suppressor protein p53 and solute carrier family 7 member 11 (SLC7A11). Rats were developed as RA models by the administration of Freund's complete adjuvant. In the corresponding groups, moxibustion treatment was carried out using cigarette-like moxa strips that were suspended near \"Shenshu\" (BL23) and \"Zusanli\" (ST36) once daily for 15 days, and the p53 agonist NSC59984 was administered intraperitoneally. After 15 days of treatment, histomorphological changes were noted by transmission electron microscopy; p53, glutathione peroxidase 4 (GPX4), and SLC7A11 expression were detected by Western blot; serum levels of reactive oxygen species (ROS), glutathione (GSH), and Fe<sup>2+</sup> were estimated with the colorimetric and fluorescent probe methods; and serum levels of tumor necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β) were quantified by enzyme linked immunosorbent assay. Compared with the model group and agonist group, the mitochondrial damage in the moxibustion and moxibustion + agonist groups were showed varying degrees of reduction. The levels of p53, ROS, Fe<sup>2+</sup>, TNF-α, and IL-1β in the model group were significantly higher than those in the normal group, the agonist group was significantly higher than the model group, and the moxibustion and moxibustion + agonists groups were lower than the model and agonist groups. The levels of SLC7A11, GPX4, and GSH were the opposite. Moxibustion can improve RA synovial inflammatory injury by regulating ferroptosis through inhibition of p53 protein expression.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rejuvenation researchPub Date : 2025-04-01Epub Date: 2025-03-11DOI: 10.1089/rej.2025.0012
Irina Conboy
{"title":"Continuing the Legacy: Understanding and Reducing Tissue Aging to Prevent Many Currently Incurable Diseases.","authors":"Irina Conboy","doi":"10.1089/rej.2025.0012","DOIUrl":"10.1089/rej.2025.0012","url":null,"abstract":"","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"35-36"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143598465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rejuvenation researchPub Date : 2025-04-01Epub Date: 2024-12-26DOI: 10.1089/rej.2024.0070
Hengjun Liu, Tianwei Meng, Rui Qie
{"title":"Causal Associations with Arterial Stiffness and Sarcopenia: A Mendelian Randomization Analysis.","authors":"Hengjun Liu, Tianwei Meng, Rui Qie","doi":"10.1089/rej.2024.0070","DOIUrl":"10.1089/rej.2024.0070","url":null,"abstract":"<p><p>Observational studies and clinical trials indicate a link between arterial stiffness (AS) and sarcopenia (SAR), yet the causal relationship between these remains unclear. The study aims to investigate the causal connection from AS to SAR by Mendelian randomization (MR). We analyzed Genome-Wide Association Studies data for AS indicators: pulse wave arterial stiffness index (PWASI) and pulse wave peak-to-peak time (PPT), and SAR indicators: low hand grip strength (LHGS), usual walking pace (UWP), moderate-to-vigorous physical activity levels (MVPA), and walk or cycle unassisted for 10 minutes. The inverse variance-weighted, MR-Egger, weighted mode, and weighted median were applied to MR. There is a bidirectional causal relationship between the AS and SAR. The PWASI has a causation with UWP (odds ratio [OR] = 0.97, 95% confidence interval [CI] = 0.94-0.99). The PPT has a causal association with MVPA (OR = 1.08, 95% CI = 1.002-1.144) and UWP (OR = 1.05, 95% CI = 1.017-1.096). The LHGS is causally associated with PPT (OR = 0.95, 95% CI = 0.91-0.98) and UWP has a causal association with PWASI (OR = 0.77, 95% CI = 0.65-0.90) and PPT (OR = 1.37, 95% CI = 1.17-1.60). The increased AS could reduce the motor ability slightly and the lower upper and lower limb strength could lead to the higher AS. This bidirectional causal relationship of the two may offer novel perspectives for advancing the understanding of the underlying mechanisms related to AS and muscle pathophysiology.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"83-91"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Luteolin Exhibits Anxiolytic and Antidepressant Potential in Parkinson's Disease Rat: Antioxidant and Anti-Inflammatory Effects.","authors":"Ruifang She, Zhaoting Zhang, Miaomiao Han, Dapeng Zhao, Xiangting Li, Jian Zhou, Yanyan Chang, Xinping Zhang, Xiaohong Li","doi":"10.1089/rej.2024.0045","DOIUrl":"10.1089/rej.2024.0045","url":null,"abstract":"<p><p>Parkinson's disease (PD) is accompanied by a complex array of nonmotor and motor manifestations. The exploration of anti-inflammatory and antioxidant active ingredient as potential therapeutic interventions in PD-associated mood alterations has gained significant attention. This study aimed to assess the antidepressant and anxiolytic properties of luteolin (LTN), a potent antioxidant and anti-inflammatory component, using a 6-hydroxydopamine (6-OHDA)-induced animal model of PD. Rats were administered LTN (10, 25, and 50 mg/kg, per oral) and fluoxetine (10 mg/kg/per oral) over a 28-day period. Behavioral tests were employed to estimate the depression- and anxiety-like behaviors. Rats treated with LTN exhibited significant improvement in 6-OHDA-induced mood alterations, as per behavioral tests. Additionally, LTN treatment led to increased hippocampal levels of catalase and superoxide dismutase, and a reduction in malondialdehyde. LTN downregulated the gene expression of nuclear factor kappa B (NF-κB)/nod-like receptor (NLR) pyrin domain-containing 3 (NLRP3) axis components, including NF-κB, NLRP3, ASC, and Caspase1 and reduced the protein level of pro-inflammatory cytokines, including interleukin (IL)-6, interleukin (IL)-1β, and tumor necrosis factor alpha (TNF-α), in addition to augmenting the protein levels of TNF-α, IL-1β, and IL-6. Furthermore, LTN exhibited an upregulatory effect on the anti-inflammatory cytokine IL-10 within the hippocampus of 6-OHDA-induced PD rats. Also, molecular docking showed higher affinity between LTN and NF-κB/NLRP3 axis components. These findings highlight the potential anxiolytic and antidepressant impacts of LTN through its antioxidant and anti-inflammatory mechanisms against 6-OHDA-induced alterations in a rat PD model.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"67-82"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rejuvenation researchPub Date : 2025-04-01Epub Date: 2024-11-06DOI: 10.1089/rej.2024.0051
Kai Gao, Dong Xu, Fei Mu, Meina Zhao, Wei Zhang, Xingru Tao, Chao Guo, Jingwen Wang
{"title":"Systems Pharmacology to Explore the Potential Mechanism of Ginseng Against Heart Failure.","authors":"Kai Gao, Dong Xu, Fei Mu, Meina Zhao, Wei Zhang, Xingru Tao, Chao Guo, Jingwen Wang","doi":"10.1089/rej.2024.0051","DOIUrl":"10.1089/rej.2024.0051","url":null,"abstract":"<p><p>The aim of this study is to elucidate the pharmacological mechanism underlying the effects of Ginseng Radix et Rhizoma (ginseng) in heart failure (HF), providing a theoretical foundation for its clinical application. The potential mechanism of ginseng in the context of HF was investigated using systems pharmacology that combined network pharmacology, Gene Expression Omnibus (GEO) analysis, molecular docking, and experimental verification. Network pharmacology was employed to identify drug-disease targets. Core gene targets were subsequently subjected to enrichment analysis by integrating network pharmacology with GEO. Molecular docking was utilized to predict the binding affinities between identified targets and ginseng compounds. Furthermore, the therapeutic efficacy of ginseng was validated in an isoproterenol (ISO)-induced rat model of HF. The modulation of key signaling pathways by ginseng was confirmed through Western blot analysis. A total of 154 potential targets of ginseng in the treatment of HF were identified through network pharmacology analysis. The analysis of GSE71613 revealed that the PI3K-Akt pathway, reactive oxygen species, oxidative phosphorylation, MAPK signaling, and Ras signaling pathways are predominantly associated with patients with HF. By integrating the findings from network pharmacology and GEO analysis, ginsenoside Rg1 and ginsenoside Rb3 were identified as the potential components in ginseng, while <i>FN1</i> and <i>PRKAA2</i> were recognized as key targets involved in the PI3K-AKT and AMPK pathways, respectively. Molecular docking analysis revealed a strong affinity between the potential components and the identified core targets. <i>In vivo</i> experiments indicated that the extract of ginseng (EPG) significantly ameliorated ISO-induced cardiac dysfunction by improving cardiac parameters such as cardiac left ventricular internal systolic diameter, left ventricular end-diastolic volume, left ventricular end systolic volume, and left ventricular ejection fraction, while also reducing malondialdehyde production. In addition, EPG was found to enhance superoxide dismutase activity and ATP levels, while concurrently reducing the levels of interleukin (IL)-1β, IL-6, and TNF-α. The extract also reduced myocardial oxygen consumption, inflammatory cell infiltration, and the number of damaged myocardial fibers. Moreover, EPG was observed to upregulate the expression of p-PI3K, p-AKT, p-AMPK, and Bcl-2, while downregulating the expression of p-NFκB, TGF-β, and Bax. The therapeutic effects of ginseng on HF are primarily mediated through the PI3K-Akt and AMPK pathways. Ginsenoside Rg1 and ginsenoside Rb3 have been identified as potential therapeutic agents for HF.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"54-66"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rejuvenation researchPub Date : 2025-04-01Epub Date: 2024-11-08DOI: 10.1089/rej.2024.0064
Rong-Rong Qiu, Lu Li
{"title":"Relationship of Serum Fibroblast Growth Factor 23, Hypoxia-Inducible Factor-1α, and Klotho with In-Stent Restenosis in Elderly Patients with Coronary Artery Disease after the Treatment of Percutaneous Coronary Intervention.","authors":"Rong-Rong Qiu, Lu Li","doi":"10.1089/rej.2024.0064","DOIUrl":"10.1089/rej.2024.0064","url":null,"abstract":"<p><p>In-stent restenosis (ISR) commonly occurs in elderly patients with coronary artery disease (CAD) after percutaneous coronary intervention. Atherosclerosis in elderly patients may be the leading cause of ISR. Therefore, we aim to explore the relationship between vascular calcification-associated factors and ISR occurrence. Elderly patients were enrolled according to standard inclusion and exclusion criteria. The serum fibroblast growth factor 23 (FGF23), hypoxia-inducible factor-1α (HIF-1α), and Klotho levels were determined using an enzyme-linked immunosorbent assay. The degree of coronary artery stenosis of the patients with CAD before operation was assessed using the Gensini score. The correlation was analyzed using Pearson analysis. The prediction value was evaluated using receiver operating characteristic (ROC) curve analysis. The patients with CAD were classified into the ISR group with 97 cases and the non-ISR (NISR) group with 349 cases. The Gensini score, serum FGF23, and HIF-1α levels increased while Klotho levels decreased in patients with CAD of the ISR group compared with those of the NISR group. Pearson analysis showed that FGF23 and HIF-1α positively correlated while Klotho negatively correlated to the Gensini score. ROC analysis showed all three factors could effectively predict the occurrence of ISR. Furthermore, the joint had a more effective prediction value for ISR occurrence. The dynamic analysis presented that the serum FGF23 and HIF-1α levels dramatically increased while Klotho levels decreased in patients with CAD after 1-year follow-up. Serum FGF23 and HIF-1α positively correlated while serum Klotho negatively correlated to ISR. Conclusively, these three factors effectively predicted the occurrence of ISR.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"45-53"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rejuvenation researchPub Date : 2025-04-01Epub Date: 2024-11-08DOI: 10.1089/rej.2024.0059
Jianyu Guo, Zhong Zhang
{"title":"Effects of Predictive Nursing Process on Elderly Patients with Total Hip Arthroplasty.","authors":"Jianyu Guo, Zhong Zhang","doi":"10.1089/rej.2024.0059","DOIUrl":"10.1089/rej.2024.0059","url":null,"abstract":"<p><p>Elderly individuals represent a significant demographic undergoing total hip arthroplasty, with distinct risks and complications. The study aimed to determine whether predictive nursing, guided by risk assessment, could reduce these risks and improve patient outcomes. A total of 191 elderly patients undergoing total hip arthroplasty were included in the study, with 142 patients randomly assigned to either the control or observation groups. The control group received routine care, while the observation group received predictive nursing based on comprehensive risk assessment. Various assessment tools were employed to evaluate risks such as venous thrombosis, pressure injuries, falls, joint dislocation, infections, and psychological factors. The primary outcomes included functional improvement measured by the Harris Hip Score, Activities of Daily Living (ADL), anxiety levels, and patient satisfaction. Our study demonstrated that predictive nursing interventions, guided by comprehensive risk assessment, yielded significant reductions in postoperative complications, particularly deep vein thrombosis, in elderly patients undergoing total hip arthroplasty. In addition, patients who received predictive nursing care experienced notable benefits, including shorter hospital stays, heightened satisfaction levels, enhanced hip function, improved ADL scores, and reduced anxiety levels compared with those receiving standard care. The study underscores the substantial benefits of predictive nursing interventions guided by risk assessment in improving outcomes for elderly patients undergoing total hip arthroplasty, highlighting the potential of individualized nursing care to optimize postoperative recovery and enhance patient well-being.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":"37-44"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rachel Evangelina, Subhashree Ganesan, Melvin George
{"title":"The Epigenetic Landscape: From Molecular Mechanisms to Biological Aging.","authors":"Rachel Evangelina, Subhashree Ganesan, Melvin George","doi":"10.1089/rej.2024.0102","DOIUrl":"https://doi.org/10.1089/rej.2024.0102","url":null,"abstract":"<p><p>Epigenetics, the study of heritable changes in gene expression that do not involve alterations to the deoxyribonucleic acid (DNA) sequence, plays a pivotal role in cellular function, development, and aging. This review explores key epigenetic mechanisms, including DNA methylation (DNAm), histone modifications, chromatin remodeling, RNA-based regulation, and long-distance chromosomal interactions. These modifications contribute to cellular differentiation and function, mediating the dynamic interplay between the genome and environmental factors. Epigenetic clocks, biomarkers based on DNAm patterns, have emerged as powerful tools to measure biological age and predict health span. This article highlights the evolution of epigenetic clocks, from first-generation models such as Horvath's multi-tissue clock to advanced second- and third-generation clocks such as DNAGrimAge and DunedinPACE, which incorporate biological parameters and clinical biomarkers for precise age estimation. Moreover, the role of epigenetics in aging and age-related diseases is discussed, emphasizing its impact on genomic stability, transcriptional regulation, and cellular senescence. Epigenetic dysregulation is implicated in cancer, genetic disorders, and neurodegenerative diseases, making it a promising target for therapeutic interventions. The reversibility of epigenetic modifications offers hope for mitigating age acceleration and enhancing health span through lifestyle changes and pharmacological approaches.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Molecular Mechanisms of Dietary Bioactive Peptides in Treating Alzheimer's Disease and Mild Cognitive Impairment by Network Pharmacology and Molecular Docking Analysis.","authors":"Ruirui Li, Jing Zi, Yifan Hu, Xinlong Li, Qianqian Cao, Yanliu Li, Xiaoyu Wang, Jingyuan Xiong, Guo Cheng","doi":"10.1089/rej.2024.0092","DOIUrl":"https://doi.org/10.1089/rej.2024.0092","url":null,"abstract":"<p><p>Emerging evidence suggests that bioactive peptides from various foods have therapeutic potentials in improving cognitive function in Alzheimer's disease (AD) and mild cognitive impairment (MCI). We aimed to explore the characteristics of these peptides and their mechanisms on AD/MCI using a network pharmacology approach. We compiled a dataset of cognition-enhancing peptides from literatures and identified shared targets between these peptides and AD/MCI using Swiss Target Predication, PharmMapper, OMIM, GeneCards, TTD, and Drugbank databases. We then performed functional enrichment analysis and constructed a gene-gene interaction network to identify key hub targets. Additionally, we investigated the transcription factors (TFs) and microRNAs (miRNAs) regulating these hub genes. Molecular docking and dynamic simulations were performed using AutoDock Vina and GROMACS. We identified 59 cognition-enhancing oligopeptides, typically short and rich in arginine. These peptides were predicted to interact with 222 potential targets relevant to AD/MCI, with functional pathways mainly involving neuroactive ligand-receptor interactions and inflammation. We identified 15 hub targets, regulated by 144 TFs and 95 miRNAs. Notably, peptides containing the \"Trp-Tyr\" sequence demonstrated strong binding affinities to many hub targets, especially matrix metalloproteinase-9. The findings provided valuable insights into the molecular mechanisms through which bioactive peptides may act against AD/MCI and highlight the potential of network pharmacology for future exploration of bioactive peptides from natural foods.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship of α-Klotho with Frailty Index and Sarcopenia: A Bidirectional Mendelian Randomization Study.","authors":"Yue Zhu, Guo-Jun Hong, Yong Hu, Rui Wu","doi":"10.1089/rej.2024.0057","DOIUrl":"https://doi.org/10.1089/rej.2024.0057","url":null,"abstract":"<p><p>Previous studies have established associations between α-Klotho and frailty or sarcopenia; however, the causal nature of these relationships remains unclear. This study investigates the causal effects of α-Klotho on frailty and sarcopenia-related traits using Mendelian randomization (MR). Genetic instruments for circulating α-Klotho concentrations, frailty index (FI), low grip strength (LGS), appendicular lean mass (ALM), and walking pace were developed based on data from large genome-wide association studies. Two-sample MR analyses were performed, supplemented by sensitivity analyses to ensure the robustness of the findings. Reverse MR analyses were also conducted to explore potential reverse causation. The findings demonstrated an inverse causal relationship of circulating α-Klotho levels with FI (<i>β</i> = -0.020, 95% confidence interval [95% CI] = -0.036 to -0.004; <i>p</i> = 0.017) and LGS (<i>β</i> = -0.033, 95% CI = -0.061 to -0.004; <i>p</i> = 0.023). However, no causal relationship was observed between circulating α-Klotho levels and ALM or walking pace. Additionally, no evidence of reverse causation was identified between FI or sarcopenia-related traits and circulating α-Klotho levels. In conclusion, this MR analysis establishes an inverse causal relationship of circulating α-Klotho levels with both FI and LGS.</p>","PeriodicalId":94189,"journal":{"name":"Rejuvenation research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}