1.Fangji Fulingtang Attenuates Myocardial Fibrosis by Regulating Mitochondrial Function Through AMPK/PGC-1α/MFN2-PKM2 Signaling Pathway
Xuqin DU ; Yixuan LI ; Yuxia JIN ; Hongding LI ; Ruogu YANG ; Lipeng SHI ; Yi REN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):1-10
ObjectiveTo investigate the effects and mechanisms of Fangji Fulingtang (FFD) on mitochondrial function in the mouse model of myocardial fibrosis (MF). MethodsSixty SPF-grade male C57BL/6J mice were randomly allocated into six groups (n=10 per group): control, model, low-dose, medium-dose, and high-dose (3.315, 6.63, and 13.26 g·kg-1, respectively) FFD, and captopril (20 mg·kg-1). MF was induced by subcutaneous injection of isoproterenol (10 mg·kg-1·d-1) in other groups except the control group for 14 consecutive days, with simultaneous gavage of corresponding drugs. Left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) were measured by echocardiography. Serum levels of creatine kinase-MB (CK-MB), cardiac troponin I (cTnI), N-terminal pro-brain natriuretic peptide (NT-pro BNP), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) were determined by enzyme-linked immunosorbent assay (ELISA). Malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) levels were measured by biochemical assays. Reactive oxygen species (ROS) were detected by dihydroethidium (DHE) fluorescence staining. Hematoxylin-eosin (HE), Masson's trichrome, and wheat germ agglutinin (WGA) staining were performed to evaluate myocardial structure and fibrosis. Mitochondrial ultrastructure and function were assessed by transmission electron microscopy, adenosine triphosphate (ATP) colorimetric assay, and JC-1 fluorescence staining. The protein levels of phosphorylated adenosine monophosphate-activated protein kinase α subunit (p-AMPKα), AMPKα, peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α), mitofusin 2 (MFN2), pyruvate kinase M2 isoform (PKM2), lactate dehydrogenase A (LDHA), and hypoxia-inducible factor 1 alpha (HIF-1α) were analyzed by Western blot. ResultsCompared with the control group, the model group exhibited decreased LVEF and LVFS, increased heart weight index and heart weight-to-tibia length ratio (P<0.01), elevated levels of myocardial injury markers (CK-MB, cTnI, and NT-pro BNP), inflammatory cytokines (TNF-α, IL-1β, and IL-6), and MDA, along with reduced SOD and GSH levels (P<0.01). Enhanced interstitial collagen deposition and cardiomyocyte hypertrophy were observed in the model group (P<0.01). Transmission electron microscopy and JC-1 staining revealed mitochondrial swelling, crista disruption, decreased ATP content, and reduced red/green fluorescence ratio in the model group (P<0.01). Western blot analysis demonstrated downregulation of p-AMPKα, PGC-1α, and MFN2 and upregulation of PKM2, LDHA, and HIF-1α in the model group (P<0.01). Compared with the model group, treatment with FFD or captopril improved LVEF and LVFS, reduced heart weight index and heart weight-to-tibia length ratio (P<0.05, P<0.01), lowered the serum levels of CK-MB, cTnI, NT-pro BNP, TNF-α, IL-1β, IL-6, and MDA, increased the SOD and GSH levels (P<0.05, P<0.01), attenuated the myocardial fibrosis and cardiomyocyte hypertrophy (P<0.01), and restored the mitochondrial ultrastructure. The medium and high-dose FFD groups as well as the captopril group showed increased ATP production and red/green fluorescence ratio (P<0.05, P<0.01). Furthermore, FFD upregulated the expression of p-AMPKα and PGC-1α while downregulating the expression of LDHA and HIF-1α (P<0.05, P<0.01). ConclusionFFD activates the AMPK/PGC-1α/MFN2 signaling pathway and inhibits the PKM2/LDHA/HIF-1α axis to restore mitochondrial function and energy metabolic homeostasis, thereby attenuating isoproterenol-induced myocardial fibrosis.
2.Fangji Fulingtang Attenuates Myocardial Fibrosis by Regulating Mitochondrial Function Through AMPK/PGC-1α/MFN2-PKM2 Signaling Pathway
Xuqin DU ; Yixuan LI ; Yuxia JIN ; Hongding LI ; Ruogu YANG ; Lipeng SHI ; Yi REN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):1-10
ObjectiveTo investigate the effects and mechanisms of Fangji Fulingtang (FFD) on mitochondrial function in the mouse model of myocardial fibrosis (MF). MethodsSixty SPF-grade male C57BL/6J mice were randomly allocated into six groups (n=10 per group): control, model, low-dose, medium-dose, and high-dose (3.315, 6.63, and 13.26 g·kg-1, respectively) FFD, and captopril (20 mg·kg-1). MF was induced by subcutaneous injection of isoproterenol (10 mg·kg-1·d-1) in other groups except the control group for 14 consecutive days, with simultaneous gavage of corresponding drugs. Left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) were measured by echocardiography. Serum levels of creatine kinase-MB (CK-MB), cardiac troponin I (cTnI), N-terminal pro-brain natriuretic peptide (NT-pro BNP), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) were determined by enzyme-linked immunosorbent assay (ELISA). Malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) levels were measured by biochemical assays. Reactive oxygen species (ROS) were detected by dihydroethidium (DHE) fluorescence staining. Hematoxylin-eosin (HE), Masson's trichrome, and wheat germ agglutinin (WGA) staining were performed to evaluate myocardial structure and fibrosis. Mitochondrial ultrastructure and function were assessed by transmission electron microscopy, adenosine triphosphate (ATP) colorimetric assay, and JC-1 fluorescence staining. The protein levels of phosphorylated adenosine monophosphate-activated protein kinase α subunit (p-AMPKα), AMPKα, peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α), mitofusin 2 (MFN2), pyruvate kinase M2 isoform (PKM2), lactate dehydrogenase A (LDHA), and hypoxia-inducible factor 1 alpha (HIF-1α) were analyzed by Western blot. ResultsCompared with the control group, the model group exhibited decreased LVEF and LVFS, increased heart weight index and heart weight-to-tibia length ratio (P<0.01), elevated levels of myocardial injury markers (CK-MB, cTnI, and NT-pro BNP), inflammatory cytokines (TNF-α, IL-1β, and IL-6), and MDA, along with reduced SOD and GSH levels (P<0.01). Enhanced interstitial collagen deposition and cardiomyocyte hypertrophy were observed in the model group (P<0.01). Transmission electron microscopy and JC-1 staining revealed mitochondrial swelling, crista disruption, decreased ATP content, and reduced red/green fluorescence ratio in the model group (P<0.01). Western blot analysis demonstrated downregulation of p-AMPKα, PGC-1α, and MFN2 and upregulation of PKM2, LDHA, and HIF-1α in the model group (P<0.01). Compared with the model group, treatment with FFD or captopril improved LVEF and LVFS, reduced heart weight index and heart weight-to-tibia length ratio (P<0.05, P<0.01), lowered the serum levels of CK-MB, cTnI, NT-pro BNP, TNF-α, IL-1β, IL-6, and MDA, increased the SOD and GSH levels (P<0.05, P<0.01), attenuated the myocardial fibrosis and cardiomyocyte hypertrophy (P<0.01), and restored the mitochondrial ultrastructure. The medium and high-dose FFD groups as well as the captopril group showed increased ATP production and red/green fluorescence ratio (P<0.05, P<0.01). Furthermore, FFD upregulated the expression of p-AMPKα and PGC-1α while downregulating the expression of LDHA and HIF-1α (P<0.05, P<0.01). ConclusionFFD activates the AMPK/PGC-1α/MFN2 signaling pathway and inhibits the PKM2/LDHA/HIF-1α axis to restore mitochondrial function and energy metabolic homeostasis, thereby attenuating isoproterenol-induced myocardial fibrosis.
3.Quality evaluation of Zhachong-13 pills based on the content determination of 12 components combined with multivariate statistical analysis
Wei ZHANG ; Qian ZHANG ; Tuya BAI ; Xinkui LI ; Yuxia HU ; Mengdi ZHANG ; Jing LIU ; Fang WANG ; Jun LI
China Pharmacy 2026;37(19):2509-2515
OBJECTIVE To evaluate the quality of Zhachong-13 pills.METHODS The contents of agarotetrol, costunolide, hypaconitine, dehydrocostus lactone, mesaconitine, aconitine, liquiritigenin, glycyrrhizic acid, ellagic acid, liquiritin, corilagin, and gallic acid in 18 batches of samples were determined by high-performance liquid chromatography-tandem triple quadrupole mass spectrometry (HPLC-MS/MS) method. Cluster analysis (CA) was performed using the Microbioinformatics online analysis platform. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were performed using SIMCA 14.1 software. Random forest, extremely randomized trees, and extreme gradient boosting machine learning models were constructed using the SPSSAU online analysis platform. The comprehensive quality of the samples was evaluated by the entropy weight-technique for order preference by similarity to ideal solution (TOPSIS) method.RESULTS The contents of the above 12 components were 104.331-694.382, 652.217-1 085.075, 6.051-130.980, 612.174-1 417.179, 1.018-32.239, 0.953-24.967, 65.552-652.239, 2 019.412-5 385.807, 52.867-4 990.450, 156.307-883.180, 10.142-475.722, and 1 102.863-4 826.396 μg/g, respectively. The results of CA and PCA showed that the 18 batches of samples were divided into two categories: S1-S6, S10-S15 were grouped into one category, while S7-S9 and S16-S18 were grouped into another category. The OPLS-DA results showed that the variable importance in projection values of mesaconitine, glycyrrhizic acid, liquiritin, ellagic acid, hypaconitine, liquiritigenin, agarotetrol, gallic acid, and dehydrocostus lactone were greater than 1. The results of the three machine learning models showed that ellagic acid and hypaconitine had relatively large differential contributions. The entropy weight-TOPSIS results showed that the overall quality of samples from manufacturer B was superior to that of the other four manufacturers.CONCLUSIONS The established method is stable and feasible, and can be used to evaluate the quality of Zhachong-13 pills, in combination with multivariate statistical analysis. Ellagic acid and hypaconitine are differential markers that affect its quality.
4.GAO Shuzhong's Experience in Treating Idiopathic Tinnitus with Combination of Acupuncture and Chinese Materia Medica
Pengfei WANG ; Yiyang SUN ; Xiaoyan LI ; Wenli YAN ; Ningning MENG ; Guirong YANG ; Yuxia MA
Journal of Traditional Chinese Medicine 2025;66(3):233-237
To summarize Professor GAO Shuzhong's clinical experience in treating idiopathic tinnitus with a combination of acupuncture and Chinese meteria medica. It is believed that idiopathic tinnitus is mostly caused by weak lungs and spleen, kidney essence deficiency, liver constraint transforming into fire, and binding constraint of heart qi. Treatment advocates the combination of acupuncture and Chinese meteria medica in clinical practice. Acupuncture treatment mainly focus on the method of opening the orifices by syndrome identification in combination with Ermen (TE 21), Tinggong (SI 19), Tinghui (GB 2), Shenmai (BL 62) to regulate qi and blood, and supporting with Baihui (GV 20), Yintang (EX-HN 3), Taichong (LR 3), and Yanglingquan (GB 34) to soothe the liver, resolve constraint, and calm the mind. Oral administration of Chinese medicinal prescription usually includes modified Yiqi Congming Decoction (益气聪明汤) and Tongqi Powder (通气散), and the external administration of Chinese medicinal prescription can apply self-prescribed Wenqing Powder (温清散) to navel moxibustion.
5.Expert consensus on clinical protocol for treating herpes zoster with fire needling.
Xiaodong WU ; Bin LI ; Baoyan LIU ; Lin HE ; Zhishun LIU ; Shixi HUANG ; Keyi HUI ; Hongxia LIU ; Yuxia CAO ; Shuxin WANG ; Zhe XU ; Cang ZHANG ; Jingsheng ZHAO ; Yali LIU ; Nanqi ZHAO ; Nan DING ; Jing HU
Chinese Acupuncture & Moxibustion 2025;45(12):1825-1832
The expert consensus on the clinical treatment of herpes zoster with fire needling was developed, and the commonly used fire needling treatment scheme verified by clinical research was selected to form a standardized diagnosis and treatment scheme for acute herpes zoster and postherpetic neuralgia (PHN), so as to answer the core problems in clinical application. The consensus focuses on patients with herpes zoster, and forms recommendations for 9 key clinical issues, covering simple fire needling and TCM comprehensive therapy based on fire needling, including fire needling combined with cupping, fire needling combined with Chinese herb, fire needling combined with cupping and Chinese herb, fire needling combined with filiform needling, fire needling combined with moxibustion, and provides specific recommendations and operational guidelines for various therapies.
Humans
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Herpes Zoster/therapy*
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Acupuncture Therapy/instrumentation*
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Consensus
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Clinical Protocols
6.Role of sphingolipid metabolism signaling in a novel mouse model of renal osteodystrophy based on transcriptomic approach.
Yujia WANG ; Yan DI ; Yongqi LI ; Jing LU ; Bofan JI ; Yuxia ZHANG ; Zhiqing CHEN ; Sijie CHEN ; Bicheng LIU ; Rining TANG
Chinese Medical Journal 2025;138(1):68-78
BACKGROUND:
Renal osteodystrophy (ROD) is a skeletal pathology associated with chronic kidney disease-mineral and bone disorder (CKD-MBD) that is characterized by aberrant bone mineralization and remodeling. ROD increases the risk of fracture and mortality in CKD patients. The underlying mechanisms of ROD remain elusive, partially due to the absence of an appropriate animal model. To address this gap, we established a stable mouse model of ROD using an optimized adenine-enriched diet and conducted exploratory analyses through ribonucleic acid sequencing (RNA-seq).
METHODS:
Eight-week-old male C57BL/6J mice were randomly allocated into three groups: control group ( n = 5), adenine and high-phosphate (HP) diet group ( n = 20), and the optimized adenine-containing diet group ( n = 20) for 12 weeks. We assessed the skeletal characteristics of model mice through blood biochemistry, microcomputed tomography (micro-CT), and bone histomorphometry. RNA-seq was utilized to profile gene expression changes of ROD. We elucidated the functions of differentially expressed genes (DEGs) using gene ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, and gene set enrichment analysis (GSEA). DEGs were validated via quantitative real-time polymerase chain reaction (qRT-PCR).
RESULTS:
By the fifth week, adenine followed by an HP diet induced rapid weight loss and high mortality rates in the mouse group, precluding further model development. Mice with optimized adenine diet-induced ROD displayed significant abnormalities in serum creatinine and blood urea nitrogen levels, accompanied by pronounced hyperparathyroidism and hyperphosphatemia. The femur bone mineral density (BMD) of the model mice was lower than that of control mice, with substantial bone loss and cortical porosity. ROD mice exhibited substantial bone turnover with an increase in osteoblast and osteoclast markers. Transcriptomic profiling revealed 1907 genes with upregulated expression and 723 genes with downregulated expression in the femurs of ROD mice relative to those of control mice. Pathway analyses indicated significant enrichment of upregulated genes in the sphingolipid metabolism pathway. The significant upregulation of alkaline ceramidase 1 ( Acer1 ), alkaline ceramidase 2 ( Acer2 ), prosaposin-like 1 ( Psapl1 ), adenosine A1 receptor ( Adora1 ), and sphingosine-1-phosphate receptor 5 ( S1pr5 ) were successfully validated in mouse femurs by qRT-PCR.
CONCLUSIONS
Optimized adenine diet mouse model may be a valuable proxy for studying ROD. RNA-seq analysis revealed that the sphingolipid metabolism pathway is likely a key player in ROD pathogenesis, thereby providing new avenues for therapeutic intervention.
Animals
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Mice
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Chronic Kidney Disease-Mineral and Bone Disorder/genetics*
;
Male
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Disease Models, Animal
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Mice, Inbred C57BL
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Sphingolipids/metabolism*
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Transcriptome/genetics*
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Signal Transduction/genetics*
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X-Ray Microtomography
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Adenine
7.Expert consensus on nasogastric tube and intestinal tube placement in children
Yu ZOU ; Ying GU ; Zhuowen YU ; Yan HUANG ; Yuxia YANG ; Suyun LI ; Yingwen WANG
Chinese Journal of Nursing 2025;60(14):1700-1704
Objective To form an expert consensus on nasogastric tube and intestinal tube placement in children(hereinafter referred to as the"consensus"),and provide a reference for pediatric medical workers regarding the operation of gastrointestinal tube placement in children.Methods A"consensus"formulation group was established.The"5.0"EBHC Pyramid Model was employed to systematically search,evaluate,summarize and extract relevant evidence to form the initial draft of the"consensus".The RAND-UCLA expert consensus method was utilized.Through a round of expert inquiries by correspondence and a round of face-to-face expert discussions,the data were collated,analyzed,refined,and modified to form the final version of the"consensus".Results The effective recovery rate of the expert inquiry questionnaire was 100%.The coefficient of expert authority(Cr)was 0.891.The Kendall's concordance coefficient of the inquiries was 0.692(P<0.01),which was statistically significant.The median of the"RAND-UCLA"suitability score were 7-9 points,and the disagreement index(DI)value was<1.00.The final"consensus"encompasses 9 aspects,including qualification requirements for the tube placement personnel,indications and contraindications,preoperative assessment,preoperative preparation,measurement of tube length,key points of tube placement,methods for confirming the position,tube flushing,fixation,and recording,with 47 recommendations.Conclusion This"consensus"is scientific,rigorous,and practical,covering all links of the gastrointestinal tube placement process in children,providing reference and guidance for the safe and standardized implementation of gastrointestinal tube placement in children.
8.Expert consensus on orthodontic treatment of protrusive facial deformities.
Jie PAN ; Yun LU ; Anqi LIU ; Xuedong WANG ; Yu WANG ; Shiqiang GONG ; Bing FANG ; Hong HE ; Yuxing BAI ; Lin WANG ; Zuolin JIN ; Weiran LI ; Lili CHEN ; Min HU ; Jinlin SONG ; Yang CAO ; Jun WANG ; Jin FANG ; Jiejun SHI ; Yuxia HOU ; Xudong WANG ; Jing MAO ; Chenchen ZHOU ; Yan LIU ; Yuehua LIU
International Journal of Oral Science 2025;17(1):5-5
Protrusive facial deformities, characterized by the forward displacement of the teeth and/or jaws beyond the normal range, affect a considerable portion of the population. The manifestations and morphological mechanisms of protrusive facial deformities are complex and diverse, requiring orthodontists to possess a high level of theoretical knowledge and practical experience in the relevant orthodontic field. To further optimize the correction of protrusive facial deformities, this consensus proposes that the morphological mechanisms and diagnosis of protrusive facial deformities should be analyzed and judged from multiple dimensions and factors to accurately formulate treatment plans. It emphasizes the use of orthodontic strategies, including jaw growth modification, tooth extraction or non-extraction for anterior teeth retraction, and maxillofacial vertical control. These strategies aim to reduce anterior teeth and lip protrusion, increase chin prominence, harmonize nasolabial and chin-lip relationships, and improve the facial profile of patients with protrusive facial deformities. For severe skeletal protrusive facial deformities, orthodontic-orthognathic combined treatment may be suggested. This consensus summarizes the theoretical knowledge and clinical experience of numerous renowned oral experts nationwide, offering reference strategies for the correction of protrusive facial deformities.
Humans
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Orthodontics, Corrective/methods*
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Consensus
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Malocclusion/therapy*
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Patient Care Planning
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Cephalometry
9.Clinical Observation on Yang-Warming and Tendons-Soothing Acupuncture Method in the Treatment of Post-stroke Upper Limb Motor Dysfunction
Fang CAI ; Yan ZHU ; Yuxia LI ; Sifang CHEN
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(4):886-892
Objective To observe the clinical efficacy of yang-warming and tendons-soothing acupuncture method in the treatment of post-stroke upper limb motor dysfunction,and to explore its effect on coagulation function.Methods Totally 90 patients with a definitive diagnosis of post-stroke upper limb motor dysfunction admitted to the wards and outpatient clinics of Lujiang County Hospital of Traditional Chinese Medicine from January 2022 to December 2023 were selected for the study.The patients were randomly divided into the observation group and the control group according to the random number table method,with 45 cases in each group.The control group was given conventional rehabilitation training,and the observation group was treated with yang-warming and tendons-soothing acupuncture method on the basis of the treatment of the control group,the course of treatment covered four consecutive weeks.After one month of treatment,the clinical efficacy of the two groups was evaluated,and the changes of the National Institutes of Health Stroke Scale(NIHSS)and Fugl-Meyer Assessment Scale(FMA)scores,as well as the Modified Ashworth Spasticity Scale(MAS)score,the Barthel Index(MBI)score,and Stroke-Specific Quality of Life Scale(SS-QOL)score were observed in the patients of the two groups.Changes in the activated partial thromboplastin time(APTT),prothrombin time(PT),fibrinogen(Fib),and tumor necrosis factor α(TNF-α),interleukin 6(IL-6),and C-reactive protein(CRP)before and after treatment were compared between patients of the two groups.Results(1)The total effective rate of the observation group was 93.33%(42/45),and that of the control group was 68.89%(31/45),and the efficacy of the observation group was superior to that of the control group,the difference being statistically significant(P<0.05).(2)After treatment,the NIHSS scores and FMA scores of the patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(3)After treatment,MAS scores and MBI scores of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(4)After treatment,the APTT,PT,and Fib levels of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(5)After treatment,the serum levels of TNF-α,IL-6,and CRP of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(6)After treatment,the SS-QOL scores of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).Conclusion Yang-warming and tendons-soothing acupuncture method in the treatment of post-stroke upper limb motor dysfunction can effectively improve the patient's limb motor function and coagulation function,reduce the degree of neurological impairment and inflammatory response,improve the patient's activity of daily living,thereby improving the patient's quality of life.
10.A prediction model of thoracic aortic calcification in chronic kidney disease based on serum nidogen-2
Yongqi LI ; Jing LU ; Yan DI ; Yinan ZHAO ; Yuxia ZHANG ; Yujia WANG ; Ziyu LIANG ; Rining TANG ; Bicheng LIU
Chinese Journal of Nephrology 2025;41(8):605-614
Objective:To explore the correlation between serum nidogen-2 (NID-2) and thoracic aortic calcification in patients with chronic kidney disease (CKD), and construct a risk prediction model based on NID-2 to evaluate its value in predicting the risk of the severe thoracic aortic calcification and cardiovascular and cerebrovascular events in CKD patients.Methods:It was a prospective cohort study. Patients with CKD at stage 3 to 5D in the Zhongda Hospital Affiliated to Southeast University from January 2022 to January 2023 were enrolled. Syngo.via software was used to evaluate the volume of thoracic aortic calcification, and enzyme-linked immunosorbent assay was employed to determine the level of serum NID-2. According to the volume of thoracic aortic calcification, the patients were divided into three groups: no calcification group, mild calcification group and severe calcification group. The top 25% of the patients were defined as no or mild calcification group, and the latter 75% were defined as severe calcification group. The follow-up period was one year. During the follow-up period, cardiovascular and cerebrovascular events, as well as all-cause death among the enrolled patients were recorded. Logistic regression analysis was used to screen the influencing factors of thoracic aortic calcification. Based on the results of logistic regression analysis, a nomogram prediction model was constructed. The receiver operating characteristic curve (ROC curve), calibration curve, and decision curve were employed to evaluate the discrimination, calibration and clinical practicality of the nomogram model.Results:A total of 132 patients were included, with 91 males (68.94%) and age of (56.51±16.37) years. There were 60 CKD 3-5 stage patients (non-dialysis, 45.45%) and 72 CKD 5D patients (dialysis, 54.55%). Serum ND-2 levels differed significantly among healthy individuals, dialysis patients and non-dialysis patients ( H=70.651, P<0.001). There was no statistically significant difference in serum NID-2 level between the no or mild calcification group and the severe calcification group in dialysis patients ( Z=350.00, P=0.426). The serum NID-2 level in the severe calcification group was significantly higher than that in the no or mild calcification group in non-dialysis patients ( Z=242.00, P=0.019). In non-dialysis patients, there was a statistically significant correlation between serum NID-2 level and volume of thoracic aortic calcification ( r=0.40, P<0.001). In dialysis patients, there was no statistically significant correlation between serum NID-2 level and volume of each segment of thoracic aortic calcification (all P>0.05). The univariate logistic regression analysis showed that, age, hemoglobin, serum albumin, estimated glomerular filtration rate, NID-2, hypertension, type 2 diabetes mellitus and cerebral infarction were correlated factors of thoracic aortic calcification in non-dialysis patients (all P<0.05). Multivariate logistic regression analysis showed that age ( OR=1.22, 95% CI 1.08-1.50, P=0.010) was an independent correlated factor of thoracic aortic calcification in non-dialysis patients. The above related variables of univariate logistic regression analysis were incorporated into a nomogram to construct a predictive model for severe vascular calcification in non-dialysis patients, yielding an AUC of 0.94 (95% CI 0.89-0.99) in ROC curve, with a sensitivity of 83% and a specificity of 95%. A nomogram model based on above variables for predicting cardiovascular and cerebrovascular events in non-dialysis patients demonstrated an AUC of 0.95 (95% CI 0.90-1.00) in ROC curve, with a sensitivity of 95% and a specificity of 87%. Conclusions:In non-dialysis patients, serum NID-2 level in the severe calcification group is significantly higher than that in the no or mild calcification group. The serum NID-2 is a related factor of thoracic aortic calcification and cardiovascular and cerebrovascular events in non-dialysis patients. The nomogram prediction model constructed by combining NID-2 with age, hemoglobin, serum albumin, estimated glomerular filtration rate, hypertension, type 2 diabetes mellitus and cerebral infarction has a high predictive value for the risk of thoracic aortic calcification as well as cardiovascular and cerebrovascular events in non-dialysis patients.

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