Maria Cristina Ferrara, Lucía Lozano-Vicario, Beatrice Arosio, Cristina D'Orlando, Lara De Luca, Alice Margherita Ornago, Elena Pinardi, Paolo Mazzola, Chukwuma Okoye, Riccardo Gamberale, Francesca Remelli, Massimiliano Castellazzi, Giovanni Zatti, Giuseppe Foti, Ángel Javier Muñoz-Vázquez, Nicolás Martínez-Velilla, Stefano Volpato, Giuseppe Bellelli
{"title":"Neurofilament-Light Chain and Glial Fibrillary Acidic Protein as Blood-Based Delirium Risk Markers: A Multicohort Study.","authors":"Maria Cristina Ferrara, Lucía Lozano-Vicario, Beatrice Arosio, Cristina D'Orlando, Lara De Luca, Alice Margherita Ornago, Elena Pinardi, Paolo Mazzola, Chukwuma Okoye, Riccardo Gamberale, Francesca Remelli, Massimiliano Castellazzi, Giovanni Zatti, Giuseppe Foti, Ángel Javier Muñoz-Vázquez, Nicolás Martínez-Velilla, Stefano Volpato, Giuseppe Bellelli","doi":"10.14336/AD.2025.0107","DOIUrl":"https://doi.org/10.14336/AD.2025.0107","url":null,"abstract":"<p><p>Postoperative delirium (POD) is often under-recognized in clinical practice. Blood-based markers could facilitate delirium detection and risk stratification. Neurofilament-Light chain (NfL) and Glial Fibrillary Acidic Protein (GFAP) are promising blood-based markers for neurodegenerative diseases and potential candidates for delirium. This study explored their role as blood-based risk markers for POD in older patients undergoing hip fracture surgery. In this prospective multicohort study, preoperative blood and intraoperative cerebrospinal fluid (CSF) samples were collected from patients aged ≥65 years with hip fractures. POD was assessed daily using the 4AT scale. NfL and GFAP concentrations in both blood and CSF were compared between POD and Non-POD groups, further stratifying by dementia status. Logistic regression models adjusted for covariates were used to assess associations. A total of 143 patients (median age, 85 years; 76.9% female) were included, with POD occurring in 38 patients (26.6%). Blood NfL and GFAP concentrations were significantly higher in the POD group than in Non-POD (64.55 vs. 44.6 pg/mL and 22 vs. 14.8 pg/mL, P&;lt0.001). CSF NfL levels were also elevated in POD (2154 vs. 1565 pg/mL, P=0.007), but no significant difference was observed for CSF GFAP levels. Higher preoperative blood NfL and GFAP levels independently predicted POD after adjusting for age, sex, dementia, frailty, and Interleukin-6 (Odds Ratio, OR: 3.21, 95% Confidence Interval, CI: 1.26-8.21, and OR: 3.66, 95% CI: 1.38-9.68, respectively). Although further research is needed, our findings support the role of NfL and GFAP as blood-based risk markers for POD in older patients undergoing hip fracture surgery.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Decoding Aging through iPSC Reprogramming: Advances and Challenges.","authors":"Rui-Lin Li, Yun-Zeng Zou, Sheng Kang","doi":"10.14336/AD.2025.0438","DOIUrl":"https://doi.org/10.14336/AD.2025.0438","url":null,"abstract":"<p><p>Aging is characterized by cellular senescence and increased susceptibility to age-related diseases. Induced pluripotent stem cell (iPSC) technology demonstrates the potential to reverse aging hallmarks, including telomere attrition, mitochondrial dysfunction, and oxidative stress. Reprogramming somatic cells using factors such as Oct4, Sox2, Klf4, and c-Myc (OSKM) restores pluripotency and reverses aging markers. Partial reprogramming, involving transient OSKM expression, rejuvenates cells by resetting epigenetic clocks, reducing senescence-associated secretory phenotypes (SASPs), and improving mitochondrial function, as evidenced by lifespan extension in progeroid mouse models. These advancements facilitate disease modeling and autologous therapies for neurodegeneration, etc. Critical challenges, including tumorigenicity risks associated with oncogenic reprogramming factors, have been mitigated through non-integrative delivery systems (e.g., mRNA, small molecules) and suicide genes. Persistent epigenetic memory and incomplete reprogramming impede iPSC differentiation, but CRISPR-based tools (e.g., dCas9-DNMT3A, CRISPRoff) allow precise epigenetic editing to erase residual somatic signatures. Variability in iPSC quality, influenced by cell source and culture conditions, necessitates standardized protocols and CRISPR-enhanced quality control. Ethical considerations, such as informed consent and genetic discrimination, highlight the need for governance frameworks that align innovation with societal values. Subsequent priorities include optimizing reprogramming efficiency, validating safety in preclinical models, and translating findings into therapies for age-related disorders. In conclusion, iPSC and CRISPR technologies collectively present transformative strategies to delay aging and restore cellular vitality, paving the way for rejuvenation therapies. Future studies should focus on improving the reprogramming efficiency, minimizing the risk of tumorigenicity, and exploring the optimized CRISPR-based epigenetic editing technique.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"What do You Need to Know after Diabetes and before Diabetic Retinopathy?","authors":"Shiyu Zhang, Jia Liu, Heng Zhao, Yuan Gao, Changhong Ren, Xuxiang Zhang","doi":"10.14336/AD.2025.0289","DOIUrl":"https://doi.org/10.14336/AD.2025.0289","url":null,"abstract":"<p><p>Diabetic retinopathy (DR) is a leading cause of vision impairment and blindness among individuals with diabetes mellitus. Current clinical diagnostic criteria mainly base on visible vascular structure changes, which are insufficient to identify diabetic patients without clinical DR (NDR) but with dysfunctional retinopathy. This review focuses on retinal endothelial cells (RECs), the first cells to sense and respond to elevated blood glucose. As blood glucose rises, RECs undergo compensatory and transitional phases, and the correspondingly altered molecules are likely to become biomarkers and targets for early prediction and treatment of NDR with dysfunctional retinopathy. This article elaborated the possible pathophysiological processes focusing on RECs and summarized recently published and reliable biomarkers for early screening and emerging intervention strategies for NDR patients with dysfunctional retinopathy. Additionally, references for clinical medication selection and lifestyle recommendations for this population are provided. This review aims to deepen the understanding of REC biology and NDR pathophysiology, emphasizes the importance of early detection and intervention, and points out future directions to improve the diagnosis and treatment of NDR with dysfunctional retinopathy and to reduce the occurrence of DR.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pericytes in the Development and Progression of Brain Diseases.","authors":"Qingbin Wu, Xinyi Cui, Xiaochen Yuan, Jianqun Han, Hongwei Li, Ruijuan Xiu","doi":"10.14336/AD.2025.0028","DOIUrl":"https://doi.org/10.14336/AD.2025.0028","url":null,"abstract":"<p><p>Pericytes are microvascular cells surrounding the endothelial cells on the outside of the capillaries in the body. They are crucial cells in the formation and ensure the integrity of vascular walls in the microcirculation. The pericytes enable that by regulating blood flow, maintaining the stability of the vascular wall, and ensuring the integrity of the blood-brain barrier (BBB). It has been confirmed that pericytes are involved in many brain diseases, including Alzheimer's disease, stroke, traumatic brain injury, epilepsy, brain tumors, brain tissue infection, and hypertension. These diseases are a huge burden on global health, and they exert significant strain on healthcare systems and society because of morbidity, mortality, and their impact on the overall quality of life of the affected population. This review study summarizes and evaluates the role of pericytes in the development and progression of many brain diseases and their role in disease progression regulation mechanisms, thereby providing new insights into the potential of pericytes in treating brain diseases.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eok-Cheon Kim, Youlim Son, Seon-Hui Kim, Soo-Ji Kim, So-Young Park, Jae-Ryong Kim
{"title":"Lanatoside C, a Novel Senolytic, Ameliorates Atherosclerosis in Mice.","authors":"Eok-Cheon Kim, Youlim Son, Seon-Hui Kim, Soo-Ji Kim, So-Young Park, Jae-Ryong Kim","doi":"10.14336/AD.2025.1219","DOIUrl":"https://doi.org/10.14336/AD.2025.1219","url":null,"abstract":"<p><p>Cellular senescence, a state of irreversible cell cycle arrest, contributes to aging and age-related diseases. Senolytics targeting cellular senescence could be applied to the prevention and treatment of age-related diseases. In this study, we identified lanatoside C (Lana C) as a senolytic compound. Lana C, a cardiac glycoside used for the treatment of cardiovascular diseases, is known to inhibit the transmembrane protein sodium-potassium adenosine triphosphatase (Na<sup>+</sup>/K<sup>+</sup>-ATPase). We found that Lana C depolarized and acidified senescent human umbilical vein endothelial cells (HUVECs), making them susceptible to apoptosis. The senolytic activity of Lana C was inhibited by potassium chloride (KCl) and Z-VAD-FMK (ZVF), a widely used pan-caspase inhibitor. Additionally, Lana C significantly ameliorated the senescence burden and the formation of atherosclerotic lesions in apolipoprotein E (ApoE<sup>-/-</sup>) or low-density lipoprotein receptor (Ldlr<sup>-/-</sup>) knockout mice. These results suggest that Lana C could be a promising senolytic for age-related diseases.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optic Atrophy 1: The Conductor of Cellular Harmony and Age-Related Pathologies.","authors":"Ye Xu, Jingwen Zhu, Qixiang Shao, Hui Wang","doi":"10.14336/AD.2025.0017","DOIUrl":"https://doi.org/10.14336/AD.2025.0017","url":null,"abstract":"<p><p>As the population aging, the prevalence of age-related diseases is also rising. Mitochondrial malfunction is one of the hallmarks of aging, and optic atrophy type 1 (OPA1), a protein found in the inner membrane (IM) of mitochondrial, is essential to this process. OPA1 regulates the fusion of IM and cristae structure, hence maintaining cellular energy metabolism and function. Its abnormalities may impair the multiple functions of tissues and are also closely related to various diseases. OPA1 is highly expressed in metabolically active organs, such as the brain, skeletal muscle, and heart, ensuring the normal metabolism and function of these organs. This review summarizes the physiological functions of OPA1 in these organs, along with the effect of aberrant OPA1 expression on aging related disorders. By deeply studying the mechanisms of OPA1's function in these diseases, we might achieve a more profound comprehension of the pathological processes of age-related diseases and explore potential therapeutic strategies.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lysosomes as Dynamic Regulators of Metabolic Signaling and Organ Physiology in Aging: From Mechanism to Therapy.","authors":"Yu Sun, Jin Wei, Shiyin Ma, Chang He, Liutao Sui, Xudong Pan, Xiaoyan Zhu","doi":"10.14336/AD.2025.0275","DOIUrl":"https://doi.org/10.14336/AD.2025.0275","url":null,"abstract":"<p><p>Lysosomes are degradation centers and signaling hubs that in cells and play important roles in cellular homeostasis, development, and aging. Growing evidence has also implicated the role of lysosome-related mechanisms in the aging process. Meanwhile, the potential impact of lysosomal dysfunction on the production of inflammatory molecules, cellular metabolic status, and mitochondrial function is becoming increasingly significant. In this review, we provide a comprehensive overview of the physiological roles of lysosomes and their association with aging. At the cellular level, lysosomal dysfunction and cellular senescence show strong correlations. Herein, we elucidated the precise mechanisms by which lysosomal dysfunction contributes to various cellular physiological processes, as well as its potential implications in age-related hallmarks. More importantly, we discuss how lysosomal homeostasis is disrupted in several age-related diseases, including atherosclerosis, heart diseases, cancer, neurodegenerative diseases, metabolic disorders, and motor system diseases. Thus, a deeper understanding of lysosomal function may provide fundamental insights into human physiology and age-related diseases. Furthermore, these discoveries emphasize the role of the lysosome in the development of novel therapeutic strategies.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hypoxic Preconditioning Mitigates Acute Hypoxia Induced MS/VDB Cholinergic Cell Loss and Memory Impairments.","authors":"Linhui Qin, Yong Yang, Houdi Zhang, Sijie Li, Xi Wu, Minjie Wang, Simeng Liu, Heguan Fu, Xunming Ji, Cong Han, Changhong Ren","doi":"10.14336/AD.2025.0175","DOIUrl":"https://doi.org/10.14336/AD.2025.0175","url":null,"abstract":"<p><p>Cholinergic cells originating from the medial septal nucleus (MS) and the vertical and horizontal limbs of the diagonal band of Broca (VDB and HDB, respectively) are critical for supporting a variety of memory and cognitive functions. However, the viability of cholinergic cells has not been explored in the context of acute hypoxia (AH). This study aimed to investigate the effects of AH on cholinergic cells in these nuclei and to test whether hypoxic preconditioning (HPC)-a previously established neuroprotective therapy-could prevent cholinergic cell loss, cognitive dysfunction, and hippocampal synaptic dysfunction in mice exposed to AH. We found that cholinergic cell loss occurred in the MS/DB after AH. HPC prevented this effect and also improved AH-induced cognitive dysfunction and hippocampal synaptic dysfunction. Overall, our findings highlight the significant role of cholinergic cells in AH-induced memory impairments and suggest that the preservation of cholinergic cell viability may provide a mechanism by which HPC improves memory impairments and preserves the function of memory-processing brain structures after AH.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qing Wang, Mengqi Dong, Xue Xia, Xinyu Bao, Mengsha Hu, Lei Ye, Yun Xu
{"title":"OPA1 Enhances Microglial Amyloid-β Clearance and Alleviates Cognitive Impairments in an Alzheimer's Disease Model.","authors":"Qing Wang, Mengqi Dong, Xue Xia, Xinyu Bao, Mengsha Hu, Lei Ye, Yun Xu","doi":"10.14336/AD.2025.0082","DOIUrl":"https://doi.org/10.14336/AD.2025.0082","url":null,"abstract":"<p><p>Amyloid deposition is thought to be a pathologic hallmark of Alzheimer disease (AD), which is associated with cognitive decline. Microglia play a crucial role in the pathology of AD, especially in the clearance of Aβ. Optic atrophy 1 (OPA1) is a GTPase primarily on the inner mitochondrial membrane, related to mitochondrial dynamics and cellular energy metabolism. Here, we found that decreased OPA1 expression and defective mitochondrial morphology in microglia during AD. Next, we utilized an OPA1 activator BGP-15, an OPA1 inhibitor myls22 and an OPA1 overexpression virus to investigate the role of OPA1 in AD. Our findings demonstrate that OPA1 promotes ATP production and Aβ clearance by microglia, leading to improved cognitive function. This may relate to down-regulation of hexokinase-2 (HK2) expression. These results suggest a critical role for OPA1 in Aβ clearance by microglia and a promising new direction for therapeutic approaches in AD.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong Tan, Xin Yang, Jing Yang, Gang Fan, Guozuo Xiong
{"title":"PCSK9 in Vascular Aging and Age-Related Diseases.","authors":"Dong Tan, Xin Yang, Jing Yang, Gang Fan, Guozuo Xiong","doi":"10.14336/AD.2024.1713","DOIUrl":"https://doi.org/10.14336/AD.2024.1713","url":null,"abstract":"<p><p>The aging process significantly contributes to human disease, and as worldwide life expectancy increases, addressing the challenges of aging and age-related cardiovascular diseases is becoming increasingly urgent. Vascular aging is a key link between aging and the development of age-related diseases. Recent studies indicate that proprotein convertase subtilisin/kexin type 9 (PCSK9), a type of protein involved in the metabolism of lipids, is crucial in modulating vascular aging by affecting the physiological functioning of vascular cells. PCSK9 is linked to lipid metabolism and chronic inflammation and is involved in regulating senescence-related activities, including migration, proliferation, apoptosis, and differentiation. These factors contribute to the aging of vascular cells and age-related vascular diseases, including atherosclerosis, hypertension, coronary artery disease, and cerebrovascular diseases. Given its involvement in these processes, this article provides a comprehensive summary of PCSK9's regulatory functions in vascular aging, highlighting potential therapeutic targets for combating age-related cardiovascular diseases.</p>","PeriodicalId":7434,"journal":{"name":"Aging and Disease","volume":" ","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}