1.Treatment of Renal Injury in Wilson Disease Based on Pathogenesis of Latent Toxin in Kidney Collaterals
Ke DIAO ; Wenming YANG ; Xiang LI ; Yue YANG ; Yulong YANG ; Zhihong RAO ; Shuzhen FANG ; Yufeng DING
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):132-139
Hepatolenticular degeneration, also known as Wilson disease (WD), is a hereditary disease caused by mutations in the ATP7B gene, leading to copper metabolism disorders. Gene mutations result in impaired synthesis of copper-binding protein, and abnormal excretion of copper through bile leads to pathological deposition of copper in various organs, ultimately causing multi-organ damage. The insidious onset and low specificity of symptoms make it difficult to diagnose this disease. On the basis of existing studies and the theory of latent toxin, this paper proposes that latent toxin in kidney collaterals is the main pathogenesis of renal injury in WD. It is pointed out that health Qi deficiency and latent pathogen are the premises for the occurrence of this disease, and the transformation of latent pathogen into toxin is the ley pathological process. Toxin damaging kidney collaterals is the ultimate result. According to the pathogenesis, this paper proposes the treatment principle of reinforcing healthy Qi and resolving toxin and treatment based on syndrome differentiation. This review provides new ideas for the diagnosis and treatment of renal injury in WD with traditional Chinese medicine.
2.Clinical Efficacy of Gandouling Decoction Combined with Neuromuscular Electrical Stimulation on Dysphagia in Wilson Disease with Combined Phlegm and Stasis
Zhihong RAO ; Wenming YANG ; Yue YANG ; Xiang LI ; Peng HUANG ; Yulong YANG ; Ke DIAO ; Shuzhen FANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):155-162
ObjectiveTo observe the clinical efficacy of Gandouling decoction combined with neuromuscular electrical stimulation (NMES) in the treatment of dysphagia in Wilson disease (WD) with combined phlegm and stasis. MethodsA total of 80 WD patients with dysphagia due to combined phlegm and stasis treated in the Department of Encephalopathy, the First Affiliated Hospital of Anhui University of Chinese Medicine were randomized into a control group and an observation group, with 40 patients in each group. In addition, 40 healthy volunteers were recruited as the normal group. The control group was treated with basic copper drainage combined with NMES. The observation group was treated with Gandouling Decoction on the basis of the therapy in the control group. Each course of treatment lasted for 8 days, and the patients were treated for a total of 4 courses. All subjects underwent video fluoroscopic swallowing study (VFSS) before and after treatment. During the examination, contrast agents with 4 different characters were used for the swallowing action, and the passing time was recorded. The TCM syndrome score, water swallow test score, standard swallowing assessment (SSA) score, and 24-h urinary copper level before and after treatment were analyzed. ResultsWhen performing VFSS, the passing time of contrast agents of different characters in the oral stage was longer in the WD group than in the normal group (P<0.01), while it had no significant difference in the pharyngeal stage. After treatment, the passing time in the oral stage shortened in the control and observation groups (P<0.01), and the observation group outperformed the control group (P<0.01). After treatment, both the control and observation groups showed declines in TCM syndrome score and SSA score (P<0.01) and an increase in water swallow test score (P<0.01), and the changes were more obvious in the observation group than in the control group (P<0.01). In addition, the treatment in the control and observation groups elevated the 24-h urinary copper level (P<0.01), and the elevation in the observation group was more obvious than that in the control group (P<0.01). Neither group showed obvious adverse reaction. ConclusionGandouling decoction combined with NMES can significantly ameliorate dysphagia in WD patients with the syndrome of combined phlegm and stasis regarding the TCM syndrome score, water swallow test score, and SSA score, demonstrating definite clinical efficacy and high safety.
3.Interpretation of Chinese Expert Consensus on Integrated Chinese and Western Medicine Management of Wilson Disease-related Renal Damage
Wenming YANG ; Ke DIAO ; Hu XI ; Zhihong RAO ; Taohua WEI ; Yulong YANG ; Shuzhen FANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):168-176
Wilson disease is a copper metabolism disorder caused by mutations in the ATP7B gene, which encodes a copper-transporting ATPase β, and can result in multisystem damage. The kidneys are the third most commonly affected organs after the liver and brain. In recent years, numerous diagnostic and treatment guidelines for Wilson disease have emerged. However, most of these focus primarily on hepatic and neurological manifestations and their management, with limited coverage of renal involvement. The high incidence, low awareness, and lack of clinical specificity of Wilson disease-related renal damage (WDRD) have made early detection and intervention particularly challenging in clinical practice. To further optimize the treatment of patients with WDRD, improve clinical diagnosis and management, and enhance patients' quality of life, the Neurology Committee of the Chinese Association of Integrative Medicine, in April 2024, initiated a revision of the first expert consensus on the integrated diagnosis, treatment, and management of WDRD. This effort brought together experts in hepatology, encephalopathy (neurology), and nephrology from many tertiary-level grade A hospitals and research institutions across China. Through comprehensive literature review and integration of frontline clinical experience, the expert group jointly developed Chinese Expert Consensus on Integrated Chinese and Western Medicine Management of Wilson Disease-related Renal Damage (hereinafter referred to as the "Consensus"). This article provides a detailed interpretation of the Consensus in terms of diagnostic criteria, traditional Chinese medicine (TCM) syndrome differentiation and treatment classification, and comprehensive disease management, aiming to better guide clinical application. Regarding diagnostic criteria, the Consensus integrates the latest standards in China and abroad, highlights the importance of biochemical diagnosis, and compensates for the limitations of genetic testing. In the area of TCM syndrome differentiation and treatment, the Consensus refines four major syndrome types, introduces a newly defined syndrome, i.e., phlegm, blood stasis, and heat accumulation, and elaborates on treatment principles, prescriptions, and clinical modification rules for each syndrome. For comprehensive disease management, the Consensus emphasizes multi-dimensional intervention strategies, including diet, exercise, emotional regulation, medication, and medical care, with the goal of maximally controlling the progression of renal dysfunction and helping patients achieve a better quality of life.
4.Epigenetic changes and exercise regulation:mechanisms underlying skeletal muscle aging and improvement
Rao FAN ; Jianda KONG ; Lin LI ; Teng ZHAI ; Zirou YANG ; Lei ZHU
Chinese Journal of Tissue Engineering Research 2025;29(2):419-429
BACKGROUND:Muscle aging is closely related to various epigenetic changes,and exercise has a certain regulatory effect on these epigenetic changes.However,the specific mechanism is not fully understood. OBJECTIVE:To review the epigenetic mechanisms of skeletal muscle and how exercise can improve skeletal muscle aging and promote adaptive changes in muscle through these epigenetic mechanisms,aiming to provide a more comprehensive understanding of skeletal muscle aging and disease mechanisms. METHODS:During the period from June 1st to August 1st,2023,literature searches were conducted for relevant literature published from database inception to August 2023 in databases including Web of Science,PubMed,CNKI,WanFang,and VIP.The search terms used included"skeletal muscle,""muscle,""aging,""older adult,""aging,""exercise,""physical exercise,""epigenetic,"and"epigenetics"in Chinese as well as"skeletal muscle,muscle,aging,older adult,senescence,age,exercise,sports,physical activity,epigenetic,epigenetics"in English.Boolean logic operators were used to connect the search terms for retrieval,and corresponding strategies were developed.According to the predetermined inclusion and exclusion criteria,70 eligible articles were selected. RESULTS AND CONCLUSION:Epigenetics refers to the phenomenon where gene expression and function are regulated without changes in gene sequence,and epigenetic changes in skeletal muscle are an important field.The epigenetic mechanisms of skeletal muscle play an important role in muscle aging,mainly involving DNA methylation,histone modification,regulation of non-coding RNAs,chromatin remodeling,changes in mitochondrial function and expression changes of aging-related genes.Exercise significantly regulates the epigenetics of skeletal muscle,including promoting DNA methylation,muscle histone modification,regulating miRNA expression,and regulating lncRNA expression,regulating muscle factors(such as interleukin-6),regulating mitochondrial function(such as peroxisome proliferators-activated receptors γ co-activator 1α).Future studies are recommended for long-term,cross-diverse population-based exercise interventions;the application of multi-omics techniques such as proteomics and metabolomics;strengthening the understanding of epigenetic changes at the single-cell level;cross-species comparative studies as well as human clinical trials for the translation of animal model findings to humans;strategies for combining exercise and pharmacological interventions to assess their synergistic effects;and epigenetic studies of crosstalk interactions between skeletal muscle and different organs.
5.Construction of a Disease-Syndrome Integrated Diagnosis and Treatment System for Gastric "Inflammation-Cancer" Transformation Based on Multi-Modal Phenotypic Modeling
Hao LI ; Huiyao ZHANG ; Wei BAI ; Tingting ZHOU ; Guodong HUANG ; Xianjun RAO ; Yang YANG ; Lijun BAI ; Wei WEI
Journal of Traditional Chinese Medicine 2025;66(5):458-463
By analyzing the current application of multi-modal data in the diagnosis of gastric "inflammation-cancer" transformation, this study explored the feasibility and strategies for constructing a disease-syndrome integrated diagnosis and treatment system. Based on traditional Chinese medicine (TCM) phenomics, we proposed utilizing multi-modal data from literature research, cross-sectional studies, and cohort follow-ups, combined with artificial intelligence technology, to establish a multi-dimensional diagnostic and treatment index system. This approach aims to uncover the complex pathogenesis and transformation patterns of gastric "inflammation-cancer" progression. Additionally, by dynamically collecting TCM four-diagnostic information and modern medical diagnostic information through a long-term follow-up system, we developed three major modules including information extraction, multi-modal phenotypic modeling, and information output, to make it enable real-world clinical data-driven long-term follow-up and treatment of chronic atrophic gastritis. This system can provide technical support for clinical diagnosis, treatment evaluation, and research, while also offering insights and methods for intelligent TCM diagnosis.
6.Identification of a natural PLA2 inhibitor from the marine fungus Aspergillus sp. c1 for MAFLD treatment that suppressed lipotoxicity by inhibiting the IRE-1α/XBP-1s axis and JNK signaling.
Yong RAO ; Rui SU ; Chenyan WU ; Xingxing CHAI ; Jinjian LI ; Guanyu YANG ; Junjie WU ; Tingting FU ; Zhongping JIANG ; Zhikai GUO ; Congjun XU ; Ling HUANG
Acta Pharmaceutica Sinica B 2024;14(1):304-318
Lipotoxicity is a pivotal factor that initiates and exacerbates liver injury and is involved in the development of metabolic-associated fatty liver disease (MAFLD). However, there are few reported lipotoxicity inhibitors. Here, we identified a natural anti-lipotoxicity candidate, HN-001, from the marine fungus Aspergillus sp. C1. HN-001 dose- and time- dependently reversed palmitic acid (PA)-induced hepatocyte death. This protection was associated with IRE-1α-mediated XBP-1 splicing inhibition, which resulted in suppression of XBP-1s nuclear translocation and transcriptional regulation. Knockdown of XBP-1s attenuated lipotoxicity, but no additional ameliorative effect of HN-001 on lipotoxicity was observed in XBP-1s knockdown hepatocytes. Notably, the ER stress and lipotoxicity amelioration was associated with PLA2. Both HN-001 and the PLA2 inhibitor MAFP inhibited PLA2 activity, reduced lysophosphatidylcholine (LPC) level, subsequently ameliorated lipotoxicity. In contrast, overexpression of PLA2 caused exacerbation of lipotoxicity and weakened the anti-lipotoxic effects of HN-001. Additionally, HN-001 treatment suppressed the downstream pro-apoptotic JNK pathway. In vivo, chronic administration of HN-001 (i.p.) in mice alleviated all manifestations of MAFLD, including hepatic steatosis, liver injury, inflammation, and fibrogenesis. These effects were correlated with PLA2/IRE-1α/XBP-1s axis and JNK signaling suppression. These data indicate that HN-001 has therapeutic potential for MAFLD because it suppresses lipotoxicity, and provide a natural structural basis for developing anti-MAFLD candidates.
7.Mechanism of Piezo1 channel activation promoting increase in intracellu-lar calcium concentration of rat coronary smooth muscle cells
Yongjiang CAI ; Yanxiang ZHENG ; Zifan WANG ; Sujuan KUANG ; Hui YANG ; Fang RAO ; Chunyu DENG
Chinese Journal of Pathophysiology 2024;40(1):9-17
AIM:To investigate the mechanism of Piezo1 channel activation promoting the increase in intra-cellular Ca2+ concentration([Ca2+]i)of rat coronary artery smooth muscle cells(CASMCs).METHODS:The primary CASMCs of SD rats were cultured,and the expression and subcellular localization of Piezo1 in the cells were observed by immunofluorescence staining.The Piezo1 and stromal interaction molecule 1(STIM1)in CASMCs were knocked down by siRNA transfection,and the expression levels of the proteins were detected by Western blot.Utilizing laser confocal mi-croscopy,the change of[Ca2+]i in CASMCs was detected by Fluo-4 AM fluorescent probes.RESULTS:It was confirmed by immunofluorescence staining that the expression of Piezo1 existed in primary rat CASMCs.Immunofluorescence staining also showed that Piezo1 was co-located with sarco-/endoplasmic reticulum Ca2+-ATPase 2(SERCA2),mitochondrial outer membrane protein TOM20 and nuclear membrane protein lamin B1.Western blot results showed that the protein expres-sion levels of STIM1 and Piezo1 were significantly down-regulated by siRNA transfection(P<0.05).Compared with con-trol group,Yoda1,the agonist of Piezo1,could increase the extracellular Ca2+ influx of CASMCs(P<0.01).However,the Ca2+ influx mediated by Yoda1 was not affected by the inhibition of L-type calcium channels.Treatment with Yoda1 in-creased the intracellular Ca2+ release of CASMCs(P<0.01).However,inhibition of calcium channels on endoplasmic re-ticulum,ryanodine receptor and inositol 1,4,5-triphosphate receptor,did not affect intracellular Ca2+ release mediated by Yoda1.After the Ca2+ in endoplasmic reticulum was emptied using thapsigargin(TG),Yoda1 also mediated the Ca2+ re-lease of other organelles in CASMCs(P<0.01).After inhibition of L-type calcium channels,treatment with store-operated calcium channel(SOCC)inhibitor BTP2 or knockdown of STIM1 led to the decrease in extracellular Ca2+ influx of CASMCs mediated by Yoda1(P<0.01).Treatment with TG increased the release of Ca2+ from the endoplasmic reticulum of CASMCs after knockdown of Piezo1(P<0.05),but the extracellular Ca2+ influx mediated by TG was not affected.After inhibition of L-type calcium channels and SOCC,knockdown of Piezo1 led to the decreases in intracellular Ca2+ release and extracellular Ca2+ influx induced by Yoda1(P<0.01).CONCLUSION:The Piezo1 agonist orchestrates the influx of extracellular Ca2+ by activating Piezo1 channels on the cell membrane and inducing the indirect activation of SOCC.More-over,it facilitates the release of Ca2+ from organelles.Consequently,these pathways synergistically elevate the[Ca2+]i of rat CASMCs.
8.Effect of Fto gene knockout on calcium regulation and aortic smooth muscle contraction in diabetic mice
Yanxiang ZHENG ; Yongjiang CAI ; Zifan WANG ; Sujuan KUANG ; Hui YANG ; Fang RAO ; Chunyu DENG
Chinese Journal of Pathophysiology 2024;40(2):204-212
AIM:To investigate the influence of fat mass and obesity-associated(Fto)gene on the aberrant contraction of aortic smooth muscle in diabetes mellitus(DM)mice,and to explore the mechanism of Fto gene underlying the calcium regulation.METHODS:Smooth muscle-specific Fto gene knockout(FtoSMKO)mice were generated using Cre-loxP technology.The experiment involved 3 groups of mice:wild-type(WT)group,DM model group and FtoSMKO-DM group,with 15 mice in each group.In DM group and FtoSMKO-DM group,type 1 DM was induced by intraperitoneal injec-tion of streptozotocin.The mice in WT group were injected with equal volume of citric acid-sodium citrate buffer solution.The influences of different drugs on the contraction responses of aortic smooth muscle in mice were analyzed using a multi-myograph system.The expression level of FTO protein in the aortic tissues was detected by Western blot.RESULTS:(1)Compared with WT mice,the expression levels of FTO protein in the aortic tissues of DM mice were significantly in-creased(P<0.01).(2)The expression level of FTO protein in smooth muscle was significantly decreased after knockout of Fto gene(P<0.01).Compared with WT group,the mice in DM group exhibited a significant decrease in body weight and a marked increase in fasting blood glucose level(P<0.05).There were no noticeable differences in body weight or fasting blood glucose level between FtoSMKO-DM group and DM group(P>0.05).(3)The contraction responses of aortic smooth muscle in DM group were substantially increased by phenylephrine compared with WT group.Specifically,vaso-constriction responses mediated by non-L-type calcium channels and store-operated calcium channels(SOCC)were signifi-cantly enhanced in DM group.In addition,the responses mediated by inositol 1,4,5-trisphosphate receptors(IP3R),which facilitate calcium release from the sarcoplasmic reticulum,were significantly enhanced.However,the responses mediated by caffeine-activated ryanodine receptors(RyR),which also facilitate calcium release from the sarcoplasmic re-ticulum,were significantly inhibited(P<0.05).(4)Compared with DM group,the phenylephrine-induced contraction re-sponses of aortic smooth muscle in FtoSMKO-DM group were greatly weakened(P<0.05).In particular,the vasoconstriction responses mediated by non-L-type calcium channels and SOCC in FtoSMKO-DM group were greatly suppressed(P<0.05),while those mediated by caffeine-activated RyR were dramatically boosted(P<0.05).However,IP3R-mediated responses were not affected(P>0.05).CONCLUSION:Smooth muscle-specific Fto gene knockout suppresses contractile hyperre-sponsiveness in the aortic smooth muscle of DM mice,which may be attributed to involvement of FTO protein in calcium regulation in the vascular smooth muscle.
9.Value of 18F-FAPI PET/CT in evaluating early-stage of liver graft fibrosis in adult liver transplantation recipients
Youwei ZHAO ; Xiaohan FANG ; Qiuju TIAN ; Qun ZHANG ; Man XIE ; Guangjie YANG ; Jinzhen CAI ; Zhenguang WANG ; Wei RAO
Chinese Journal of Nuclear Medicine and Molecular Imaging 2024;44(7):385-389
Objective:To explore the value of 18F-fibroblast activation protein inhibitor (FAPI) PET/CT in the assessment of early-stage graft fibrosis (S1-S2) after liver transplantation (LT). Methods:From November 2021 to April 2022, 17 adult liver transplant recipients (12 males and 5 females; age (52.6±7.9) years) in the Affiliated Hospital of Qingdao University were enrolled retrospectively in this study. All 17 patients received laboratory examinations, FibroScan, 18F-FAPI PET/CT and liver biopsy. According to the Scheuer scoring system, hepatic tissue was divided into no fibrosis (S0) and early fibrosis (S1-S2). Independent-sample t test was used to compare SUV max between two groups, and Mann-Whitney U test was used to compare liver stiffness measurement (LSM). ROC curve analysis was used to evaluate the diagnostic efficacy of LSM and SUV max in the early fibrosis of liver grafts. Delong test was used to compare the difference of AUCs. Results:Among 17 adult LT recipients, 11 were in stage S0, 5 were in stage S1, and 1 was in stage S2. There were significant differences in LSM and SUV max between no fibrosis group and early fibrosis group (LSM: 5.4(4.7, 6.6) vs 12.9(5.6, 19.9) kPa, z=-2.01, P=0.044; SUV max: 1.7±0.8 vs 3.9±1.6, t=-3.14, P=0.019). The threshold value of LSM in predicting early-stage graft fibrosis was 8.2 kPa and the AUC was 0.80 (95% CI: 0.54-0.95), which was 2.0 and 0.92 (95% CI: 0.78-1.00) for SUV max respectively. There was no significant difference in AUC between the two tools ( z=0.80, P=0.421). Conclusion:18F-FAPI PET/CT can precisely evaluate the early fibrosis of allografts, with the similar diagnostic efficacy with FibroScan (LSM), which is expected to be a new non-invasive diagnostic tool for predicting the early-stage of graft liver fibrosis.
10.Pharmacokinetic study of the complication of Ephedra sinica and Prunus armeniaca in bronchial asthma model rats
Linlin CHEN ; Jingen XIE ; Xuecheng FAN ; Qian RAO ; Tianyi YANG ; Jiayu TIAN ; Xiong XIAO ; Wenjun GAO ; Wenhong LI
China Pharmacy 2024;35(13):1588-1593
OBJECTIVE To study the pharmacokinetic changes in the plasma and cerebrospinal fluid of bronchial asthma model rats after the complication of Ephedra sinica and Prunus armeniaca. METHODS SD male rats were randomly divided into blank group, model group, E. sinica group (12 g/kg, calculated by raw drug, similarly hereinafter), P. armeniaca group (6 g/kg) and E. sinica-P. armeniaca drug-pair group (12 g/kg of E. sinica+6 g/kg of P. armeniaca), with 6 rats in each group. Except for the blank group, the bronchial asthma model was induced by spraying rats in each group with an equal volume mixture of 2% acetylcholine chloride and 0.4% histamine phosphate, once a day, for 7 d. One hour before modeling every time, rats in each group were gavaged with the corresponding drug/normal saline, once a day, for 7 d. After the final administration and provocation of asthma, blood and cerebrospinal fluid collection were performed at different time points. The plasma and cerebrospinal fluid samples were pre-treated (with geranylgeranyl as the internal standard), and the mass concentrations of ephedrine/pseudoephedrine, methyl ephedrine and amygdalin in both samples were determined by liquid chromatography-tandem mass spectrometry. DAS 2.0 pharmacokinetic software was used to determine the main pharmacokinetic parameters through the non-atrial chamber model and to compare the changes of the pharmacokinetic parameters before and after the combination of the two drugs. RESULTS Compared with E. sinica group, cmax and AUC0-21.33 h (or AUC0-10.67 h) of ephedrine/pseudoephedrine and methyl ephedrine in the plasma and cerebrospinal fluid of rats were significantly reduced in E. sinica-P. armeniaca drug-pair group, while CLZ/F and VZ/F were significantly increased (P<0.05 or P<0.01); tmax of methyl ephedrine in the cerebrospinal fluid was significantly shortened (P< 0.05).Compared with P. armeniaca group, the t1/2 of amygdalin in the plasma of rats in E. sinica-P. armeniaca drug-pair group was significantly shortened, and CLZ/F was significantly increased (P<0.01); the tmax of bitter amygdalin in the cerebrospinal fluid was significantly shortened, and the AUC0-10.67 h, CLZ/F, and VZ/F were significantly increased (P<0.01). CONCLUSIONS The combination of E. sinica and P. armeniaca accelerates the absorption and elimination of ephedra alkaloids, thus reducing the accumulation of ephedra alkaloids in the bronchial asthma model rats.

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