Epigenetic Information Loss and Chronosenescence in Liver Aging: From Molecular Mechanisms to Therapeutic Interventions Xu Xu, Hui Li, Jiling Li, Min Huang The FASEB Journal.2026;[Epub] CrossRef
Correspondence to editorial on “DNA methylome analysis reveals epigenetic alteration of complement genes in advanced metabolic dysfunction-associated steatotic liver disease” Amal Magdy, Hee-Jin Kim, Won Kim, Mirang Kim Clinical and Molecular Hepatology.2025; 31(1): e70. CrossRef
Amal Magdy, Hee-Jin Kim, Hanyong Go, Jun Min Lee, Hyun Ahm Sohn, Keeok Haam, Hyo-Jung Jung, Jong-Lyul Park, Taekyeong Yoo, Eun-Soo Kwon, Dong Hyeon Lee, Murim Choi, Keon Wook Kang, Won Kim, Mirang Kim, on behalf of the Innovative Target Exploration of NAFLD (ITEN) Consortium
Clin Mol Hepatol 2024;30(4):824-844. Published online July 25, 2024
Background/Aims Blocking the complement system is a promising strategy to impede the progression of metabolic dysfunction–associated steatotic liver disease (MASLD). However, the interplay between complement and MASLD remains to be elucidated. This comprehensive approach aimed to investigate the potential association between complement dysregulation and the histological severity of MASLD.
Methods Liver biopsy specimens were procured from a cohort comprising 106 Korean individuals, which included 31 controls, 17 with isolated steatosis, and 58 with metabolic dysfunction–associated steatohepatitis (MASH). Utilizing the Infinium Methylation EPIC array, thorough analysis of methylation alterations in 61 complement genes was conducted. The expression and methylation of nine complement genes in a murine MASH model were examined using quantitative RT-PCR and pyrosequencing.
Results Methylome and transcriptome analyses of liver biopsies revealed significant (P<0.05) hypermethylation and downregulation of C1R, C1S, C3, C6, C4BPA, and SERPING1, as well as hypomethylation (P<0.0005) and upregulation (P<0.05) of C5AR1, C7, and CD59, in association with the histological severity of MASLD. Furthermore, DNA methylation and the relative expression of nine complement genes in a MASH diet mouse model aligned with human data.
Conclusions Our research provides compelling evidence that epigenetic alterations in complement genes correlate with MASLD severity, offering valuable insights into the mechanisms driving MASLD progression, and suggests that inhibiting the function of certain complement proteins may be a promising strategy for managing MASLD.
Proteomics Insight into the Pathogenic Evolution of Chronic Hepatitis B across Distinct Clinical Stages Junhua Xie, Jun Lai, Yanzhe Zhang, Ye Liu, Zhixiang Yan Journal of Proteome Research.2026; 25(2): 936. CrossRef
Transcriptional and epigenetic regulation of Ca2+-signaling genes in hepatitis B-derived hepatocellular carcinoma and their association with the cancer hallmarks Guadalupe Hernández-Martínez, Andrés Hernández-Oliveras, Ángel Zarain-Herzberg, Juan Santiago-García, Kieran Campbell Bioinformatics Advances.2026;[Epub] CrossRef
Editorial: Residual HCC Risk After Hepatitis C Cure—Can Polygenic Risk Scores Refine Surveillance? Heechul Nam, Sung Won Lee Alimentary Pharmacology & Therapeutics.2026; 63(10): 1427. CrossRef
Diagnostic innovation and models of care to improve fibrosis detection and risk stratification in steatotic liver disease Nicola Pugliese, Trenton M. White, Paul N. Brennan, Silvana Pannain, Hannes Hagström, Maurice Michel, Lisa Rice-Duek, Giovanni Targher, Cyrielle Caussy, John F. Dillon, Frank Tacke, Christopher J. Kopka, Giada Sebastiani, Jerome Boursier, Emmanuel A. Tsoc The Lancet Regional Health - Europe.2026; 65: 101722. CrossRef
Role of genetic variants and DNA methylation of lipid metabolism-related genes in metabolic dysfunction-associated steatotic liver disease Jun-Jie Wang, Xiao-Yuan Chen, Yi-Rong Zhang, Yan Shen, Meng-Lin Zhu, Jun Zhang, Jun-Jie Zhang Frontiers in Physiology.2025;[Epub] CrossRef
Uncovering hepatic transcriptomic and circulating proteomic signatures in MASH: A meta-analysis and machine learning-based biomarker discovery Elena Cristina Rusu, Helena Clavero-Mestres, Mario Sánchez-Álvarez, Marina Veciana-Molins, Laia Bertran, Pablo Monfort-Lanzas, Carmen Aguilar, Javier Camaron, Teresa Auguet Computers in Biology and Medicine.2025; 191: 110170. CrossRef
Sepsis-related immune signature C3 in endometrial carcinoma: implications for prognosis, tumor progression through bioinformatics and experimental validation Kulsoom, Wajahat Ali, Saleem Ahmad, Irfan Ali Khan, Tanveen Kaur Soni, Asia Masood, Muhammad Omer Iqbal, Valisher Sapayev Odilbek uglu, Mukhayya Xusinovna Djumaniyazova, Anas Sameed Cholavaram, Mubaraq Arisekola Abdulrahmon Molecular Biology Reports.2025;[Epub] CrossRef
Gradual DNA methylation changes reveal transcription factors implicated in metabolic dysfunction-associated steatotic liver disease progression and epigenetic age acceleration Evelien Van Dijck, Steven Van Laere, Emilie Logie, Steven Timmermans, Erik Fransen, Joe Ibrahim, Timothy J. Kendall, Jonathan A. Fallowfield, Ligia M. Mateiu, Claude Libert, Guy Van Camp, An Verrijken, Luc Van Gaal, Sven Francque, Wim Van Hul, Wim Vanden Clinical Epigenetics.2025;[Epub] CrossRef
Recent progress in histone post-translational modifications as regulators of metabolic diseases: A review Aiqiang Zhu, Tong Ye, Minjia Tan, Jun-Yu Xu International Journal of Biological Macromolecules.2025; 330: 147964. CrossRef
Causal relationship and mediating role between depression and cognitive performance Xinyu Hao, Fuyang Cao, Ziyao Xu, Shaohua You, Tianyue Mi, Lei Wang, Yongxin Guo, Zhuoning Zhang, Jiangbei Cao, Jingsheng Lou, Yanhong Liu, Xianyang Chen, Zhikang Zhou, Weidong Mi, Li Tong The Journal of Prevention of Alzheimer's Disease.2025; 12(8): 100196. CrossRef
Prospects of Mendelian randomization in hepatology: a comprehensive literature review with practice guidance Lanlan Chen, Qi Rao, Menghan Gao, Guoyue Lv, Frank Tacke Clinical and Molecular Hepatology.2025; 31(4): 1115. CrossRef
Serum complement C3 as a diagnostic biomarker for metabolic dysfunction -associated steatotic liver disease in middle-aged and elderly adults: a cross-sectional study Dan Ye, Haifen Ma, Jingjing Zhou, Jiaofeng Wang, Jiaheng Shi, Jie Chen, Zhijun Bao, Xiaona Hu BMC Gastroenterology.2025;[Epub] CrossRef
Reassessing the Impact of Coffee Consumption on Liver Disease: Insights from a Large-Scale Cohort Study with IPTW Adjustment Keungmo Yang, Young Chang, Soung Won Jeong, Jae Young Jang, Tom Ryu Nutrients.2024; 16(13): 2020. CrossRef
Impact of Physical Activity on Overall Survival and Liver Cirrhosis Incidence in Steatotic Liver Disease: Insights from a Large Cohort Study Using Inverse Probability of Treatment Weighting Keungmo Yang, Beom Sun Chung, Tom Ryu Nutrients.2024; 16(15): 2532. CrossRef
Reply to correspondence on “Protein-centric omics analysis reveals circulating complements linked to non-viral liver diseases as potential therapeutic targets” Mohammad Saeid Rezaee-Zavareh, Naomy Kim, Ju Dong Yang Clinical and Molecular Hepatology.2024; 30(4): 1037. CrossRef
Correspondence to editorial on “Protein-centric omics analysis reveals circulating complements linked to non-viral liver diseases as potential therapeutic targets” Yingzhou Shi, Guandou Yuan, Xiude Fan, Chao Xu Clinical and Molecular Hepatology.2024; 30(4): 987. CrossRef
Background/Aims To evaluate the causal correlation between complement components and non-viral liver diseases and their potential use as druggable targets.
Methods We conducted Mendelian randomization (MR) to assess the causal role of circulating complements in the risk of non-viral liver diseases. A complement-centric protein interaction network was constructed to explore biological functions and identify potential therapeutic options.
Results In the MR analysis, genetically predicted levels of complement C1q C chain (C1QC) were positively associated with the risk of autoimmune hepatitis (odds ratio 1.125, 95% confidence interval 1.018–1.244), while complement factor H-related protein 5 (CFHR5) was positively associated with the risk of primary sclerosing cholangitis (PSC;1.193, 1.048– 1.357). On the other hand, CFHR1 (0.621, 0.497–0.776) and CFHR2 (0.824, 0.703–0.965) were inversely associated with the risk of alcohol-related cirrhosis. There were also significant inverse associations between C8 gamma chain (C8G) and PSC (0.832, 0.707–0.979), as well as the risk of metabolic dysfunction-associated steatotic liver disease (1.167, 1.036–1.314). Additionally, C1S (0.111, 0.018–0.672), C7 (1.631, 1.190–2.236), and CFHR2 (1.279, 1.059–1.546) were significantly associated with the risk of hepatocellular carcinoma. Proteins from the complement regulatory networks and various liver diseaserelated proteins share common biological processes. Furthermore, potential therapeutic drugs for various liver diseases were identified through drug repurposing based on the complement regulatory network.
Conclusions Our study suggests that certain complement components, including C1S, C1QC, CFHR1, CFHR2, CFHR5, C7, and C8G, might play a role in non-viral liver diseases and could be potential targets for drug development.
Citations
Citations to this article as recorded by
Untargeted Proteomics Profiling of Liver and Plasma in Fed and Fasted Liver‐Specific Glycogen Storage Disease Type Ia (GSD Ia) Mice: Toward Potential Protein Biomarkers Ruiqi Xiao, Hilda I. de Vries, Candelas Gross‐Valle, Aycha Bleeker, Terry G. J. Derks, Barbara M. Bakker, Maaike H. Oosterveer, Justina C. Wolters Journal of Inherited Metabolic Disease.2026;[Epub] CrossRef
КЛІНІКО-МОРФОЛОГІЧНІ АСПЕКТИ ПЕРВИННОГО НЕАЛКОГОЛЬНОГО СТЕАТОГЕПАТИТУ ЗА НАЯВНОСТІ КОМОРБІДНОЇ ПАТОЛОГІЇ ЖОВЧНОГО МІХУРА О. Ю. Фофанова, В. В. Феденько, З. Я. Гурик, Е. О. Кіндратів, І. Г. Лаб'як Art of Medicine.2025; : 113. CrossRef
Immune activation contributes recovery following pulmonary impairments by silica nanoparticles Caixia Guo, Xinying Zhao, Yan Li, Donglei Wang, Hailin Xu, Songqing Lv, Xueyan Li, Yanbo Li Journal of Hazardous Materials.2025; 496: 139403. CrossRef
Plasma complement proteins as biomarkers and therapeutic targets in chronic kidney disease: a Mendelian randomization analysis Yu-Peng Xu, Zheng-Qi Song, Ming-Li Chen, Yang-Li Fang, Hui-Di Zhang Renal Failure.2025;[Epub] CrossRef
Tissue-specific isoform usage and gene expression revealed through RNA-seq and ATAC-seq in developing cattle Sarem F. Khilji, Shangqian Xie, Gabrielle M. Becker, Katie A. Shira, Morgan R. Stegemiller, Julia L. Woods, Janet E. Williams, Lauren E. Christensen, Denise E. Konetchy, Darren E. Hagen,, Gordon K. Murdoch, Stephanie D. McKay, Brenda M. Murdoch BMC Genomics.2025;[Epub] CrossRef
Starting the journey: Understanding the roles of complement proteins in liver diseases through mendelian randomization Mohammad Saeid Rezaee-Zavareh, Naomy Kim, Ju Dong Yang Clinical and Molecular Hepatology.2024; 30(2): 150. CrossRef
Constructing a disulfidptosis-related prognostic signature of hepatocellular carcinoma based on single-cell sequencing and weighted co-expression network analysis Zelin Tian, Junbo Song, Jiang She, Weixiang He, Shanshan Guo, Bingchen Dong Apoptosis.2024; 29(9-10): 1632. CrossRef
Hepatocyte nuclear factor 4α is a critical factor for the production of complement components in the liver Carlos Ichiro Kasano-Camones, Satomi Yokota, Maiko Ohashi, Noriaki Sakamoto, Daichi Ito, Yoshifumi Saito, Ryo Uchida, Kazumi Ninomiya, Yusuke Inoue In Vitro Cellular & Developmental Biology - Animal.2024; 60(10): 1174. CrossRef
Alcohol-induced liver disease (ALD) is a complex disorder, with a disease spectrum ranging from steatosis to steatohepatitis, cirrhosis, and hepatocellular carcinoma. Although the pathogenesis of ALD is incompletely understood and currently no effective drugs are available for ALD, several lines of evidence suggest that complement activation and oxidative stress play crucial roles in the pathogenesis of ALD. Complement activation can regulate the production of ROS and influence oxidative stress in ALD. Precise regulation of the complement system in ALD may be a rational and novel avenue to postpone and even reverse the progression of disease and simultaneously promote the repair of liver injury. In this mini-review, we briefly summarize the recent research progress, especially focusing on the role of complement and oxidative stress-induced transfer RNA-derived fragments, which might help us to better understand the pathogenesis of ALD and provide aid in the development of novel therapeutic strategies for ALD.
Citations
Citations to this article as recorded by
Cynara cardunculus subsp. cardunculus (Wild Artichoke) Extract: Antimicrobial Activity and Cytotoxicity, Apoptosis Induction, and Chemosensitization in Colon Cancer Cells Simone Bianchi, Rosaria Acquaviva, Claudia Di Giacomo, Barbara Tomasello, Francesco Pappalardo, Alessandra Pino, Irina Naletova, Donata Condorelli, Alfonsina La Mantia, Ignazio Barbagallo, Cinzia Randazzo, Giuseppe Antonio Malfa Biology.2026; 15(6): 475. CrossRef
Inflammatory Microenvironment Reshapes the Protein Corona of Polystyrene Nanoplastics to Exacerbate Periodontitis Progression Can Chen, Qi Yang, Weidong Wang, Shijun Lu, Minxuan Han, Miaomiao He, Ruixi Yang, Wei Shao, Chunhua Zhang, Weijian Song, Meilin Wang Advanced Healthcare Materials.2026;[Epub] CrossRef
Rheumatoid Factor Beyond Rheumatoid Arthritis: A Potential Marker of Cardiometabolic and Hepatic Risk Simeon Egba, Innocent Orhonigbe, Ngozi Achi, Gavin Ikechukwu, Charles Chukwu, Chukwudi Omeoga Biologics: Targets and Therapy.2026; Volume 20: 1. CrossRef
Modulation of the Gut–Liver Axis and Nrf2/HO-1-Mediated Antioxidant Defense by Styela plicata Extract Against Alcoholic Liver Injury Qiuzhe Li, Yuanyuan Liu, Shuo Shan, Yuxi Wen, Xue Wu, Siquan Xie, Bin Liu, Chao Zhao, Weichao Chen Antioxidants.2026; 15(4): 480. CrossRef
The activation of microglia by the complement system in neurodegenerative diseases He Zhao, Yayun Lv, Jiasen Xu, Xiaoyu Song, Qi Wang, Xiaoyu Zhai, Xiaohui Ma, Jingjing Qiu, Limei Cui, Yan Sun Ageing Research Reviews.2025; 104: 102636. CrossRef
Novel insights into cuproptosis in alcoholic liver disease using bioinformatics analysis and experimental validation Tongtong Pan, Shijia Wu, Shouhao Wang, Xiaodong Wang, Dazhi Chen, Yongping Chen International Immunopharmacology.2025; 146: 113828. CrossRef
Can serum C3/C4 complement ratio be used in the differential diagnosis of central nervous system demyelinating diseases? Melike Cakan, Bariscan Cimen, Nazire Pınar Acar-Ozen, Yildirim Sara, Rana Karabudak, Aslı Tuncer Multiple Sclerosis and Related Disorders.2025; 95: 106312. CrossRef
Research progress on the roles of complement in liver injury Li-Li Ou, Jin-Lian Jiang, Man-Lu Guo, Jin-Hua Wu, Wei-Wei Zhong, Yi-Huai He World Journal of Hepatology.2025;[Epub] CrossRef
Gardenin A alleviates alcohol-induced oxidative stress and inflammation in HepG2 and Caco2 cells via AMPK/Nrf2 pathway Prashsti Chadha, Hiral Aghara, Delna Johnson, Dhrubjyoti Sharma, Mitalben Odedara, Manali Patel, Hemant Kumar, Vijay Thiruvenkatam, Palash Mandal Bioorganic Chemistry.2025; 161: 108543. CrossRef
Flavonoid Polyphenols as Therapeutic Agents for Fatty Liver Disease: Mechanisms, Microbiome Interactions, and Metabolic Insights Lei Li, Yanling Jin, Tiangang Li, Bijun Lv, Difen Yuan, Xiaoya Li, Jiali Yuan Molecular Nutrition & Food Research.2025;[Epub] CrossRef
Reactive Oxygen Species as Key Molecules in the Pathogenesis of Alcoholic Fatty Liver Disease and Nonalcoholic Fatty Liver Disease: Future Perspectives Zhiqing Zhang, Hong Yang, Fei Han, Peng Guo Current Issues in Molecular Biology.2025; 47(6): 464. CrossRef
Comparative mRNA profile analysis from NAc of adolescent male mice after binge-like alcohol exposure eliciting deficits in context fear extinction learning Mario E. Lloret Torres, Arelys Rivas Jiménez, Eduardo L. Tosado Rodríguez, Kiara Cardona Jordan, Xiany X. Lay Rivera, Yaren L. Peña Señeriz, Joseph L. Capella Muñiz, Marieliz Dieppa Rodríguez, Daniel F. Ruiz Bolívar, Jovangelis González Del Toro, John A. PLOS One.2025; 20(6): e0322576. CrossRef
Discovering Heterogeneous Leukocytes Subsets Associated With Alcoholic Steatohepatitis by scRNAseq Analysis Haribalan Perumalsamy, Sehee Park, Ji Eun Kim, Xiao Xiao, Hye Young Kim, Dae Won Jun, Tae‐Hyun Yoon MedComm.2025;[Epub] CrossRef
Inflammatory liver diseases and susceptibility to sepsis Hong Lu Clinical Science.2024; 138(7): 435. CrossRef
Water decoction of Pericarpium citri reticulatae and Amomi fructus ameliorates alcohol-induced liver disease involved in the modulation of gut microbiota and TLR4/NF-κB pathway Xing-Min Zhang, Yue-Chang Huang, Bai-Zhong Chen, Qian Li, Pan-Pan Wu, Wen-Hua Chen, Ri-Hui Wu, Chen Li Frontiers in Pharmacology.2024;[Epub] CrossRef
Alcohol and Periodontal Disease: A Narrative Review Utsav H Gandhi, Amit Benjamin, Shreya Gajjar, Tanvi Hirani, Khushboo Desai, Bansariben B Suhagia, Rahnuma Ahmad, Susmita Sinha, Mainul Haque, Santosh Kumar Cureus.2024;[Epub] CrossRef
Hepatocyte-derived Fetuin-A promotes alcohol-associated liver disease in mice by inhibiting autophagy-lysosome degradation of TLR and M2 macrophage polarization Shibang Lu, Hu Jin, Tiantian Nong, Dongxiao Li, Kang Long, Yanjun Chen, Yan Li, Hao Xing, Tingcai Pan, Songqing He, Keqing Jiang, Fudi Zhong Free Radical Biology and Medicine.2024; 224: 506. CrossRef
DNA methylome analysis reveals epigenetic alteration of complement genes in advanced metabolic dysfunction-associated steatotic liver disease Amal Magdy, Hee-Jin Kim, Hanyong Go, Jun Min Lee, Hyun Ahm Sohn, Keeok Haam, Hyo-Jung Jung, Jong-Lyul Park, Taekyeong Yoo, Eun-Soo Kwon, Dong Hyeon Lee, Murim Choi, Keon Wook Kang, Won Kim, Mirang Kim Clinical and Molecular Hepatology.2024; 30(4): 824. CrossRef
Shear Wave Dispersion Elastography in ALD and MASLD: Comparative Pathophysiology and Clinical Potential—A Narrative Review Tommaso Dionisi, Linda Galasso, Luigiandrea Antuofermo, Francesco Antonio Mancarella, Giorgio Esposto, Irene Mignini, Maria Elena Ainora, Antonio Gasbarrini, Giovanni Addolorato, Maria Assunta Zocco Journal of Clinical Medicine.2024; 13(24): 7799. CrossRef
Compound Probiotic Ameliorates Acute Alcoholic Liver Disease in Mice by Modulating Gut Microbiota and Maintaining Intestinal Barrier Haixia Liu, Xing Kang, Xiaodan Yang, Hao Yang, Xiaoyu Kuang, Peng Ren, Huan Yan, Xiaorong Shen, Yongbo Kang, Lin Li, Xiaohui Wang, Linzhi Guo, Mingwei Tong, Weiping Fan Probiotics and Antimicrobial Proteins.2023; 15(1): 185. CrossRef
Hepatoprotective Effect of Kaempferol: A Review of the Dietary Sources, Bioavailability, Mechanisms of Action, and Safety Maulana Yusuf Alkandahri, Barolym Tri Pamungkas, Zulpakor Oktoba, Mareetha Zahra Shafirany, Lela Sulastri, Maya Arfania, Ebta Narasukma Anggraeny, Ade Pratiwi, Fitri Dwi Astuti, Indriyani, Siti Yuliani Dewi, Salsa Zulfa Hamidah, Srinivas Mutalik Advances in Pharmacological and Pharmaceutical Sciences.2023; 2023: 1. CrossRef
Antioxidant and hepatoprotective activities of methanolic extract of Fimbristylis miliacea (L.) Vahl Roni Roy, Jony Roy, Israt Jahan Liya, Jamiuddin Ahmed, Afroza Akter, Mohammad Anwarul Basher Phytomedicine Plus.2023; 3(2): 100449. CrossRef
Hydrogen gas ameliorates acute alcoholic liver injury via anti-inflammatory and antioxidant effects and regulation of intestinal microbiota Haixia Liu, Xing Kang, Peng Ren, Xiaoyu Kuang, Xiaodan Yang, Hao Yang, Xiaorong Shen, Huan Yan, Yongbo Kang, Fan Zhang, Xiaohui Wang, Linzhi Guo, Weiping Fan International Immunopharmacology.2023; 120: 110252. CrossRef
RNA alternative splicing impacts the risk for alcohol use disorder Rudong Li, Jill L. Reiter, Andy B. Chen, Steven X. Chen, Tatiana Foroud, Howard J. Edenberg, Dongbing Lai, Yunlong Liu Molecular Psychiatry.2023; 28(7): 2922. CrossRef
Interorgan communication with the liver: novel mechanisms and therapeutic targets Jiulu Zhao, Xi Zhang, Yuan Li, Jizhang Yu, Zhang Chen, Yuqing Niu, Shuan Ran, Song Wang, Weicong Ye, Zilong Luo, Xiaohan Li, Yanglin Hao, Junjie Zong, Chengkun Xia, Jiahong Xia, Jie Wu Frontiers in Immunology.2023;[Epub] CrossRef
Métabolisme de l’alcool N. Dali-Youcef, J.-L. Schlienger EMC - Pathologie professionnelle et de l 'environnement.2023; 42(3): 1. CrossRef
Métabolisme de l’alcool N. Dali-Youcef, J.-L. Schlienger EMC - Hépatologie.2023; 38(2): 1. CrossRef
Immune cells in alcohol-related liver disease Honghai Xu, Hua Wang Liver Research.2022; 6(1): 1. CrossRef
Complement in Acute Liver Failure: The Right Timing to Give a Sincere Compliment Susanne N. Weber, Frank Lammert Cellular and Molecular Gastroenterology and Hepatology.2021; 11(5): 1546. CrossRef
Complement System in Alcohol-Associated Liver Disease Lazara Elena Santiesteban-Lores, Milena Carvalho Carneiro, Lourdes Isaac, Lorena Bavia Immunology Letters.2021; 236: 37. CrossRef
Roles of Adipokines in Digestive Diseases: Markers of Inflammation, Metabolic Alteration and Disease Progression Ming-Ling Chang, Zinger Yang, Sien-Sing Yang International Journal of Molecular Sciences.2020; 21(21): 8308. CrossRef