1.YOD1 regulates microglial homeostasis by deubiquitinating MYH9 to promote the pathogenesis of Alzheimer's disease.
Jinfeng SUN ; Fan CHEN ; Lingyu SHE ; Yuqing ZENG ; Hao TANG ; Bozhi YE ; Wenhua ZHENG ; Li XIONG ; Liwei LI ; Luyao LI ; Qin YU ; Linjie CHEN ; Wei WANG ; Guang LIANG ; Xia ZHAO
Acta Pharmaceutica Sinica B 2025;15(1):331-348
Alzheimer's disease (AD) is the major form of dementia in the elderly and is closely related to the toxic effects of microglia sustained activation. In AD, sustained microglial activation triggers impaired synaptic pruning, neuroinflammation, neurotoxicity, and cognitive deficits. Accumulating evidence has demonstrated that aberrant expression of deubiquitinating enzymes is associated with regulating microglia function. Here, we use RNA sequencing to identify a deubiquitinase YOD1 as a regulator of microglial function and AD pathology. Further study showed that YOD1 knockout significantly improved the migration, phagocytosis, and inflammatory response of microglia, thereby improving the cognitive impairment of AD model mice. Through LC-MS/MS analysis combined with Co-IP, we found that Myosin heavy chain 9 (MYH9), a key regulator maintaining microglia homeostasis, is an interacting protein of YOD1. Mechanistically, YOD1 binds to MYH9 and maintains its stability by removing the K48 ubiquitin chain from MYH9, thereby mediating the microglia polarization signaling pathway to mediate microglia homeostasis. Taken together, our study reveals a specific role of microglial YOD1 in mediating microglia homeostasis and AD pathology, which provides a potential strategy for targeting microglia to treat AD.
2.Phenomics of traditional Chinese medicine 2.0: the integration with digital medicine
Min Xu ; Xinyi Shao ; Donggeng Guo ; Xiaojing Yan ; Lei Wang ; Tao Yang ; Hao LIANG ; Qinghua PENG ; Lingyu Linda Ye ; Haibo Cheng ; Dayue Darrel Duan
Digital Chinese Medicine 2025;8(3):282-299
Abstract
Modern western medicine typically focuses on treating specific symptoms or diseases, and traditional Chinese medicine (TCM) emphasizes the interconnections of the body’s various systems under external environment and takes a holistic approach to preventing and treating diseases. Phenomics was initially introduced to the field of TCM in 2008 as a new discipline that studies the laws of integrated and dynamic changes of human clinical phenomes under the scope of the theories and practices of TCM based on phenomics. While TCM Phenomics 1.0 has initially established a clinical phenomic system centered on Zhenghou (a TCM definition of clinical phenome), bottlenecks remain in data standardization, mechanistic interpretation, and precision intervention. Here, we systematically elaborates on the theoretical foundations, technical pathways, and future challenges of integrating digital medicine with TCM phenomics under the framework of “TCM phenomics 2.0”, which is supported by digital medicine technologies such as artificial intelligence, wearable devices, medical digital twins, and multi-omics integration. This framework aims to construct a closed-loop system of “Zhenghou–Phenome–Mechanism–Intervention” and to enable the digitization, standardization, and precision of disease diagnosis and treatment. The integration of digital medicine and TCM phenomics not only promotes the modernization and scientific transformation of TCM theory and practice but also offers new paradigms for precision medicine. In practice, digital tools facilitate multi-source clinical data acquisition and standardization, while AI and big data algorithms help reveal the correlations between clinical Zhenghou phenomes and molecular mechanisms, thereby improving scientific rigor in diagnosis, efficacy evaluation, and personalized intervention. Nevertheless, challenges persist, including data quality and standardization issues, shortage of interdisciplinary talents, and insufficiency of ethical and legal regulations. Future development requires establishing national data-sharing platforms, strengthening international collaboration, fostering interdisciplinary professionals, and improving ethical and legal frameworks. Ultimately, this approach seeks to build a new disease identification and classification system centered on phenomes and to achieve the inheritance, innovation, and modernization of TCM diagnostic and therapeutic patterns.
3.Latent profile analysis of hospice care attitudes among nurses in a geriatric hospital
Lingyu WANG ; Liang BI ; Xuejing WANG ; Changchun LUO ; Zongjuan MA
Chinese Journal of Modern Nursing 2025;31(20):2679-2685
Objective:To explore the latent categories of hospice care attitudes among nurses in a geriatric hospital and to analyze the characteristic differences among these categories.Methods:A total of 434 in-service nurses from Beijing Geriatric Hospital were selected by convenience sampling from April to May 2024. Data were collected using the general information questionnaire, the Chinese version of the Frommelt Attitude Toward Care of the Dying Scale Form B, the Self-Efficacy in Coping with Death Scale, and the General Well Being Schedule. Latent profile analysis was used to identify potential categories of hospice care attitudes, and Logistic regression analysis was conducted to examine influencing factors.Results:A total of 434 questionnaires were distributed, and 431 valid responses were received, with a valid response rate of 99.31% (431/434). The hospice care attitudes of the 431 nurses were categorized into two latent profiles: "negative attitude-low communication willingness type" (55.45%, 239/431) and "positive attitude-high caring type" (44.55%, 192/431). Logistic regression analysis showed that participating in palliative care continuing education within the past year, having discussed death with patients, perceiving difficulties in caring for dying patients, self-efficacy in coping with death, and subjective well-being were statistically significant influencing factors of the latent categories of hospice care attitudes ( P<0.05) . Conclusions:Hospice care attitudes among nurses in geriatric hospitals can be classified into two latent categories: "negative attitude-low communication willingness type" and "positive attitude-high caring type". These are influenced by many factors. Nursing administrators should develop targeted interventions to support nurses in coping with stressors effectively and improving the quality of life of terminally ill patients.
4.Latent profile analysis of hospice care attitudes among nurses in a geriatric hospital
Lingyu WANG ; Liang BI ; Xuejing WANG ; Changchun LUO ; Zongjuan MA
Chinese Journal of Modern Nursing 2025;31(20):2679-2685
Objective:To explore the latent categories of hospice care attitudes among nurses in a geriatric hospital and to analyze the characteristic differences among these categories.Methods:A total of 434 in-service nurses from Beijing Geriatric Hospital were selected by convenience sampling from April to May 2024. Data were collected using the general information questionnaire, the Chinese version of the Frommelt Attitude Toward Care of the Dying Scale Form B, the Self-Efficacy in Coping with Death Scale, and the General Well Being Schedule. Latent profile analysis was used to identify potential categories of hospice care attitudes, and Logistic regression analysis was conducted to examine influencing factors.Results:A total of 434 questionnaires were distributed, and 431 valid responses were received, with a valid response rate of 99.31% (431/434). The hospice care attitudes of the 431 nurses were categorized into two latent profiles: "negative attitude-low communication willingness type" (55.45%, 239/431) and "positive attitude-high caring type" (44.55%, 192/431). Logistic regression analysis showed that participating in palliative care continuing education within the past year, having discussed death with patients, perceiving difficulties in caring for dying patients, self-efficacy in coping with death, and subjective well-being were statistically significant influencing factors of the latent categories of hospice care attitudes ( P<0.05) . Conclusions:Hospice care attitudes among nurses in geriatric hospitals can be classified into two latent categories: "negative attitude-low communication willingness type" and "positive attitude-high caring type". These are influenced by many factors. Nursing administrators should develop targeted interventions to support nurses in coping with stressors effectively and improving the quality of life of terminally ill patients.
5.Research on short-term effects of brace mask on controlling facial hypertrophic scars
Jingbo LI ; Haiyan CAO ; Lingyu LIANG
Chinese Journal of Rehabilitation Medicine 2024;39(10):1456-1461
Objective:To investigate the effects of brace masks on controlling facial hypertrophic scars. Method:Totally 63 patients with 286 post-bum facial hypertrophic scars samples were recruited for the study.And they were divided into the brace mask group with 28 cases(152 scars),cloth mask group with 26 cases(100 scars),and control group with 9 cases(34 scars).Patients in the brace mask group and cloth mask group received eight weeks of pressure therapy,while the control group did not receive pressure therapy interven-tion.Pre-and post-treatment,chromatography was used to evaluate the scar color(lightness,redness and yel-lowness).An ultrasonic measuring instrument was used to evaluate the scar thickness.The Vancouver scar scale(VSS)was used.Patient satisfaction with eight weeks of treatment was evaluated with satisfaction scale. Result:①Pre-and post-treatment comparison:The brightness decreased in control group and increased in mask group(P<0.001).The redness increased in control group and decreased in mask group(P<0.001).The thick-ness and VSS score increased in three groups bu more in control group(P=0.001).There was no change in yel-lowness for all the three groups(P=0.981).②compared the two mask groups,there was no significant differ-ence for all parameters(P>0.05).③satisfaction:the overall satisfaction of the brace mask group and the cloth mask group are 75%and 69.2%respectively.The comfort and appearance satisfaction of the brace mask group is better than the cloth mask group.The price satisfaction of the mask group is lower. Conclusion:For the facial hypertrophic scars,this short-term efficacy study showed that the brace mask and cloth mask could improve the lightness and redness and inhibit the thickness of it.The overall satisfaction of patients is high after using brace masks and cloth masks.
6.Identification of efficacy predictive genes long-term responding to anti-α4β7 integrins in ulcerative colitis patients
Yonghao CHEN ; Baizhou PAN ; Xi CHENG ; Shichu LIANG ; Lingyu CHANG ; Qiao MEI
Chinese Journal of Inflammatory Bowel Diseases 2021;05(4):314-320
Objective:To identify the co-expressed different expressed genes (DEGs) related to long-term responding in patients receiving vedolizumab or etrolizumab, whose expression could be tested to indicate the treatment efficacy when taking anti-α4β7 integrins.Methods:Two datasets were downloaded from Gene Expression Omnibus (GEO) to be analyzed. Limma, Gene Ontology (GO) and KEGG analysis were used to screen DEGs and possible pathways. The most significant module in the PPI networks was analyzed by Cytoscape. ROC curves were built to indicate the predictive potential.Results:A total of 433 DEGs were found between patients′ response and non-response to vedolizumab, and 15 DEGs between patients received vedolizumab and etrolizumab. The GO and KEGG analyses showed overlaps were enriched to some immune-related pathways closely matched to the mechanism of anti-integrins. Eight hub genes were distinguished from the PPI network: MNDA, AQP9, FPR1, FCGR3B, VNN2, TREM1, MYO1F and GAS2L3 (5 of them had been identified to be related to IBD in labs) . Conclusions:Efficacy of anti-α4β7 intergins is closely associated with inflammation-related and adhesion-related genes. The possible hub genes and related pathways are distinguished, which can be used as potential long-term response indicators towards suitable patients receiving anti-integrins.
7.Identification of efficacy predictive genes long-term responding to anti-α4β7 integrins in ulcerative colitis patients
Yonghao CHEN ; Baizhou PAN ; Xi CHENG ; Shichu LIANG ; Lingyu CHANG ; Qiao MEI
Chinese Journal of Inflammatory Bowel Diseases 2021;05(4):314-320
Objective:To identify the co-expressed different expressed genes (DEGs) related to long-term responding in patients receiving vedolizumab or etrolizumab, whose expression could be tested to indicate the treatment efficacy when taking anti-α4β7 integrins.Methods:Two datasets were downloaded from Gene Expression Omnibus (GEO) to be analyzed. Limma, Gene Ontology (GO) and KEGG analysis were used to screen DEGs and possible pathways. The most significant module in the PPI networks was analyzed by Cytoscape. ROC curves were built to indicate the predictive potential.Results:A total of 433 DEGs were found between patients′ response and non-response to vedolizumab, and 15 DEGs between patients received vedolizumab and etrolizumab. The GO and KEGG analyses showed overlaps were enriched to some immune-related pathways closely matched to the mechanism of anti-integrins. Eight hub genes were distinguished from the PPI network: MNDA, AQP9, FPR1, FCGR3B, VNN2, TREM1, MYO1F and GAS2L3 (5 of them had been identified to be related to IBD in labs) . Conclusions:Efficacy of anti-α4β7 intergins is closely associated with inflammation-related and adhesion-related genes. The possible hub genes and related pathways are distinguished, which can be used as potential long-term response indicators towards suitable patients receiving anti-integrins.
8.Exploration of the meridian differentiation law in polycystic ovarian syndrome of hirsutism based on data mining technology.
Lingyu SHEN ; Yu XING ; Qiudan LU ; Cuimei LIANG ; Wenjin YANG ; Hui HU
Chinese Acupuncture & Moxibustion 2018;38(2):165-173
OBJECTIVETo analyze the distribution characteristics of hirsutism and the law of meridian differentiation in polycystic ovarian syndrome (PCOS).
METHODSFor the patients of PCOS, the modified Ferriman-Gallwey score (mF-G score) was adopted to evaluate the hirsutism distribution. The clementine data mining software was used to analyze the distribution region of hirsutism and the correlation with meridian.
RESULTSA total of 141 patients of PCOS participated in the study. The most common regions of hirsutism were in the upper lip (50.35%) and the lower abdomen (34.04%). The higher frequencies of hirsutism at two regions were at the upper lip and lower abdomen (24.82%), the upper lip and chest (12.06%) and the upper lip and thigh (11.35%). In the analysis on the correlation of the upper lip, lower abdomen and chest with other regions, hirsutism was more common in the nearby regions. In reference to the running course of meridian, the frequencies of hirsutism from high to low were the conception vessel (63.12%), the thoroughfare vessel (61.70%), the liver meridian of foot-(58.16%) and the stomach meridian of foot-(57.45%). According to:-, the high incidence of hirsutism (59.57%) resulted from the change ofand blood inmeridian. .
CONCLUSIONBlood plays the important role in the growth of body hair. Regarding theattribution, the incidence of hirsutism at theregions is higher than theregions. The occurrence of hirsutism is closely related toand blood changes in meridians. The conception vessel, the thoroughfare vessel, the liver meridian of foot-andmeridian act highly on the disease.
9.Study on Quality Standard of Leaf of Chinese Holly from Different Habitats
Lingyu ZHANG ; Liang CHEN ; Feicui ZHAO ; Lin JIANG
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(5):96-99
Objective To set up the quality control standard for Leaf of Chinese Holly; To provide basis for the utilization and development of Leaf of Chinese Holly.Methods Ten batches of Leaf of Chinese Holly samples from different habitats were collected, and the properties were described. The crosscutting and powder of leaf was under microscopic identification. Chlorogenic acid was set as reference substance to conduct thin-layer identification. Moisture, total ash, and acid-insoluble ash of the 10 batches were detected. HPLC was used to detect chlorogenic acid in Leaf of Chinese Holly.Results The properties and microscopic identification were described. Thin-layer chromatography method for chlorogenic acid in Leaf of Chinese Holly was formulated. Check items temporarily required that the moisture in Leaf of Chinese Holly should be less than 13%, total ash less than 13%, and acid-insoluble ash less than 5%. Content determination method for chlorogenic acid in Leaf of Chinese Holly was confirmed. It temporarily required that the content of chlorogenic acid should be more than 0.60%.Conclusion The established method can be used for the formulation of quality control of Leaf of Chinese Holly.
10.Effects of insulin on osteoblast and its post-receptor mechanism
Liyang LIANG ; Minlian DU ; Yan XIA ; Zhe MENG ; Yong LIU ; Lingyu HOU ; Zhaofan LUO ; Shengneng XUE
Chinese Journal of Pathophysiology 2000;0(11):-
AIM: To study the effects of insulin on the proliferation and function of osteoblasts and the relationship between insulin post-receptor change in osteoblasts and osteoblastic cell growth.METHODS: The effects of different levels of insulin on osteoblasts were assessed by MTT colorimetry.Osteocalcin in medium was measured by RIM.IGF-1 mRNA expression levels were determined by RT-PCR.The concentrations of free IGF-1 protein in serum-free medium were measured by ELISA.In addition,the protein level and phosphorylated protein of P~(44/42)MAPK were determined by Western blotting analysis.RESULTS: Insulin enhanced the proliferation of osteoblasts,depending on its dose and exposure time.Insulin at concentration of 10~(-7) mol/L showed the strongest effect,and the action attained the plateau phase beyond 96 h.The best concentration that stimulated synthesis of osteocalcin by insulin was 10~(-7) mol/L.When the insulin concentration beyond 10~(-7) mol/L,the osteocalcin concentration was decreased.Exposure time had no effect on insulin-stimulated synthesis of osteocalcin of osteoblastic cells.When the concentration of insulin reaches 10~(-6) mol/L,the IGF-1 mRNA expression stimulated by insulin was also decreased.The concentrations of free IGF-1 protein in insulin-stimulated groups were all higher than that in control group(P0.05).Insulin acute stimulation rapidly induced the activity of tyrosine phosphorylation of P~(44/42)MAPK.The degree of tyrosine phosphorylation of P~(44/42)MAPK was increased step by step along with the increasing doses of insulin from 0 to 10~(-7) mol/L(P

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