1.Analysis of concurrent symptom networks and identification of symptom clusters in kidney transplant recipients
Minghuan ZHONG ; Weiwei CAO ; Jingjing YANG ; Chao LIU ; Shuai TANG ; Li MA ; Bei DING ; Yulin NIU
Journal of Clinical Medicine in Practice 2025;29(20):60-66
Objective To explore the symptom clusters in renal transplant recipients and con-struct a concurrent symptom network to identify core symptoms.Methods A total of 343 patients with followed up after renal transplantation were selected as the study subjects.A general information questionnaire and the Chinese version of the Modified Transplant Symptom Occurrence and Symptom Distress Scale were employed to analyze the occurrence of symptoms in patients.In this study,only symptoms with an incidence rate greater than 20%and Spearman correlation coefficient greater than 0.40 between symptom severity and total score were retained.Exploratory factor analysis was used to extract symptom clusters with a factor loading of ≥0.45 as the criterion.The R language was utilized to construct symptom network,based on which core symptoms and bridge symptoms were identified.Results A total of 5 symptom clusters were extracted in this study:the neuro-gastrointestinal symp-tom cluster,the mood-related symptom cluster,the hormone-related symptom cluster,the energy de-ficiency symptom cluster and the vision-related symptom cluster.The core symptoms were anxiety(rs=1.75),mood swings(rs=1.50)and muscle weakness(rs=1.27).The top three symptoms in terms of bridge strength were muscle weakness(rb=0.87),lack of vitality(rb=0.66)and fa-tigue(rb=0.65).Conclusion Multiple symptoms are presented in patients after renal transplanta-tion.Based on the results of symptom network analysis,clinicians can strengthen the assessment of core symptoms and bridge symptoms to develop precise intervention strategies and improve the effectiveness of symptom management.
2.Correlation between metabolic markers and blood lipid levels in kidney transplant recipients
Yuan XU ; Shuang HOU ; Qian CHEN ; Yulin NIU ; Haiyang LI
Organ Transplantation 2024;15(4):599-606
Objective To analyze the co-expressed genes in blood lipid metabolism,hyperlipidemia and tacrolimus metabolism and their correlation with blood lipid levels in kidney transplant recipients.Methods Co-expressed genes were screened from Comparative Toxicogenomic Database(CTD).Baseline data of 25 kidney transplant recipients were collected.The expression levels of ATP binding cassette subfamily A member 1(ABCA1),peroxisome proliferator activated receptor γ(PPAR-γ)and glycosylphosphatidylinositol anchored high density lipoprotein binding protein 1(GPIHBP1)were measured.All recipients were followed up.The concentrations of fasting blood glucose,glycosylated hemoglobin,triglyceride,total protein,albumin,globulin,cholesterol,high-density lipoprotein,low-density lipoprotein and tacrolimus blood concentration were collected at postoperative 1,3,6 and 12 months,and the incidence of hyperlipidemia in the recipients was analyzed.The correlation between ABCA1,GPIHBP1,PPAR-γ and clinical indexes was assessed.The diagnostic effiiciency of related indexes for hyperlipidemia after kidney transplantation was evaluated.Results Three co-expressed genes including ABCA1,PPAR-γ and GPIHBP1 were screened.ABC Al was positively correlated with cholesterol level at postoperative 6 months and tacrolimus blood concentration at postoperative 3 months,whereas negatively correlated with fasting blood glucose level at postoperative 3 months(all P<0.05).GPIHBP1 was negatively correlated with preoperative cholesterol and triglyceride levels,whereas positively correlated with tacrolimus blood concentration at postoperative 3 months(all P<0.05).PPAR-γ was negatively correlated with preoperative globulin and low-density lipoprotein levels(both P<0.05).ABCA1,GPIHBP1 and PPAR-γ combined with preoperative globulin and blood glucose level at postoperative 1 and 6 months after operation yielded high diagnostic effiiciency for hypertriglyceridemia after kidney transplantation(AUC=0.900).ABCA1,GPIHBP1 and PPAR-γ combined with tacrolimus blood concentrations at postoperative 1 and 6 months and blood glucose level at postoperative 6 months had high diagnostic effiiciency for hypercholesterolemia after kidney transplantation(AUC=0.931).Conclusions ABCA1,GPIHBP1 and PPAR-γ are correlated with blood lipid level and tacrolimus blood concentration after kidney transplantation to different degrees.No definite evidence has been supported for predicting hyperlipidemia after kidney transplantation.Immunity improvement and rational blood glucose management may be beneficial factors for hyperlipidemia control.
3.Establishment of an Engineered Bacterial Membrane Biomimetic Nanodrug Delivery System and Its Role in the Treatment of Glioma
Yinzhen ZHAO ; Yulin LI ; Jiao LI ; Mingli NI ; Jichuang WANG ; Xiaojun WANG ; Lei CHENG ; Wenge NIU ; Yingfu ZHANG ; Yunlong WANG
Journal of Sichuan University (Medical Sciences) 2024;55(4):861-871
Objective To develop engineered bacterial membrane biomimetic nanoparticles,Angiopep-2 E.coli membrane(ANG-2 EM)@PDA-PEI-CpG(ANG-2 EM@PPC),for efficient targeted drug delivery in the treatment of glioma,and to provide theoretical and technical support for targeted glioma therapy.Methods The expression of inaX-N-angiopep-2 engineered bacteria was constructed in the laboratory,and ANG-2 EM was obtained through lysozyme treatment and ultrafiltration centrifugation.ANG-2 EM@PPC was prepared by ultrasonication of bacterial membranes.Western blotting,agarose gel electrophoresis,and transmission electron microscopy(TEM)were used to verify the preparation.Particle size and Zeta potential were measured to investigate the stability of ANG-2 EM@PPC.Regarding cell experiments,CCK-8 assay was performed to determine the effect of ANG-2 EM@PPC on the survival rate of neutrophils.A flow chamber model was designed and constructed,and the uptake efficiency of neutrophils was measured by flow cytometry to investigate the hitchhiking efficiency of ANG 2 EM@PPC on neutrophils in inflammatory environment.Neutrophil death patterns were characterized by fluorescence microscopy,and flow cytometry and Western blotting were performed to examine neutrophil apoptotic bodies and the proportion of apoptotic bodies produced.Regarding animal experiments,a mouse model of in situ glioma was established and the inflammatory environment of tumor tissue was verified.The tumor model mice were divided into three groups,including DiR group,EM@PPC group,and ANG-2 EM@PPC group(all n=3),which were injected with DiR,ANG-2 EM@PDA-PEI-CpG,and EM@PDA-PEI-CpG via the tail vein,respectively(all at 10 mg/kg).Fluorescence images of organs and the brain were used to examine the distribution of the three formulations in vivo and in the brain.The tumor model mice were further divided into PBS group,PDA group,PC group,PPC group,EM@PPC group,and ANG-2 EM@PPC group(all n=4),which were injected with PBS,PDA,PC,PPC,EM@PPC,and ANG-2 EM@PPC injected via the tail vein,respectively(all at 10 mg/kg).Imaging was performed in vivo to observe tumor regression,and the survival rate and body mass of mice were measured to evaluate in vivo pharmacodynamics.TUNEL staining(brain tissue)and HE staining(brain,heart,liver,spleen,lung and kidney tissues)were performed to evaluate the therapeutic effect.Results The results of TEM showed successful preparation of engineered bacterial membrane biomimetic nanoparticles,with PPC exhibiting a distinct shell-core structure and a shell thickness of about 8.2 nm.Due to the coating of ANG-2 EM,the shell thickness of ANG-2 EM@PPC increased to about 9.6 nm,with a clear bacterial membrane layer on the surface.Stability was maintained for at least one week.ANG-2 EM@PPC had no significant effect on the activity of neutrophils according to the findings from the CCK-8 assay.Flow cytometry showed that ANG-2 EM@PPC uptake is enhanced in activated neutrophils and hitchhiking on neutrophils was more efficient in the stationary state than that in the flowing condition.Compared with the EM@PPC group,the neutrophil hitchhiking ability of the ANG-2 EM@PPC group was enhanced(uptake efficiency 24.9%vs.31.1%).Fluorescence microscopy showed that ANG-2 EM@PPC changed the death pathway of neutrophils from neutrophil extracellular traps-osis(NETosis)to apoptosis.Western blot confirmed the production of neutrophil apoptotic bodies,and flow cytometry showed that the production rate was as high as 77.7%.Animal experiments showed that there was no significant difference in the distribution of engineered bacterial membrane biomimetic nanoparticles in the organs(heart,liver,spleen,lungs,and kidney)in the DiR group,the EM@PPC gropu,and the ANG-2 EM@PPC group(P>0.05),but there was higher distribution in the brain tissue in EM@PPC and ANG-2 EM@PPC groups compared to the DiR group(P<0.05).Engineered bacterial membrane biomimetic nanoparticles crossed the blood-brain barrier(BBB),and exhibited high affinity to and internalization by neutrophils located in brain tumors.Compared with PBS,PDA,PC,and PPC groups,the survival rate and body mass of mice in the EM@PPC group were improved,tumor fluorescence intensity was weakened,and apoptotic cells were increased.These trends were even more prominent in the ANG-2 EM@PPC group.No abnormality was found in the HE staining of any group.Conclusion An ANG-2 EM@PPC nanodelivery system with inflammation response characteristics was successfully prepared,capable of crossing BBB and targeting the tumor inflammatory microenvironment to improve the anti-glioma efficacy.This study provides a new drug delivery strategy for glioma treatment and offers a new idea for targeted drug delivery in the non-invasive inflammatory microenvironments in other central nervous system diseases.
4.Current status and prospects of tertiary lymphatic structures in organ transplant rejection reactions
Qizhen YANG ; Ying WANG ; Qian CHEN ; Yulin NIU
Journal of Clinical Medicine in Practice 2024;28(5):144-148
After organ transplantation, graft rejection is one of the most common complications, which will cause adverse injuries to grafts regardless of etiology. Tertiary lymphoid structures (TLS) occur in non-lymphoid tissues under pathological conditions. Identification and characterization of mechanisms regulating graft rejection can not only promote understanding of the survival and prognosis of organ grafts, but also provide ideas for treating graft rejection reaction.
5.Influencing factors of medication adherence among adult renal transplant recipients
Yanyan XU ; Qian CHEN ; Yulin NIU ; Bei DING
Journal of Clinical Medicine in Practice 2024;28(18):90-94
Objective To investigate the influencing factors of medication adherence among renal transplant recipients taking immunosuppressive drugs. Methods In this study, 377 kidney transplant recipients who received follow-up care in the kidney transplant follow-up center of the Affiliated Hospital of Guizhou Medical University from October 2021 to July 2022 was selected by convenience sampling method. General data questionnaire and Basel Assessment Scale of immunosuppressive drug compliance were used for questionnaire analysis. Results A total of 377 renal transplant recipients were included in this study, including 236 males and 141 females. The overall adherence score was (4.90±1.55), indicating poor adherence. Multivariate Logistic regression analysis revealed that medication adherence among renal transplant recipients taking immunosuppressive drugs was correlated with marital status and postoperative time of renal transplantation. Conclusion Medication adherence among renal transplant recipients taking immunosuppressive drugs needs to be improved, with marital status and postoperative time of renal transplantation being the primary influencing factors.
6.Influencing factors for unplanned re-hospitalization in adult renal transplant recipients after surgery
Weiwei CAO ; Minghuan ZHONG ; Zhou SUN ; Guofu LIANG ; Fu YAN ; Chao LIU ; Li MA ; Kejing ZHU ; Yanyan XU ; Bei DING ; Yulin NIU
Journal of Clinical Medicine in Practice 2024;28(18):117-122
Objective To investigate the influencing factors of unplanned rehospitalization within one year after surgery among adult renal transplant recipients. Methods The clinical data of 299 recipients who underwent renal transplant surgery in the Department of Organ Transplantation of the Affiliated Hospital of Guizhou Medical University from January 2020 to December 2022 were retrospectively analyzed. The recipients were divided into unplanned rehospitalization group and non-rehospitalization group based on whether they experienced unplanned rehospitalization within one year after surgery. Univariate analysis and binary Logistic regression analysis were performed to explore the influencing factors of unplanned rehospitalization within one year after renal transplantation. Results Among the 299 recipients, 102 experienced unplanned rehospitalization, with an incidence rate of 34.11%. Univariate analysis revealedstatistically significant differences were noted between the two groups in terms of gender, occupational status, preoperative underlying disease, rejection reactions, nosocomial infections, immunosuppressive medication regimens, serum creatinine, cystatin C, serum phosphorus, serum potassium, and initial hospitalization duration (
7.Practice and benefit of national standardized management of type 2 diabetes in Yulin City
Jie HU ; Feng ZHANG ; Xingmei LI ; Yanni WANG ; Fuxiang SHI ; Shaojuan FENG ; Puliufang HE ; Xiumei ZHANG ; Hui ZHAO ; Qiaofen YANG ; Rui SONG ; Xiuxiu FENG ; Jiansheng NIU
Journal of Xi'an Jiaotong University(Medical Sciences) 2023;44(5):836-840
【Objective】 To investigate the practice and benefit of national standardized management of type 2 diabetes in Yulin City. 【Methods】 We recruited the adult type 2 diabetes patients who sought medical help at our hospital from May 2020 to October 2022 as subjects. We collected their basic information (sex and age); measured height, weight, waist and hip circumference, and blood pressure; calculated body mass index (BMI); and detected blood glucose, c-peptide, HbA1c, biomarkers, urinary microalbumin, sensory nerve conduction velocity of lower limbs, ABI, and subcutaneous and visceral fat at the time of MMC recruited and the end of six months. T test and Mann-Whitney U rank sum test were used for measurement data and χ2 test or Fisher’s exact probability method for counting data to analyze the data. 【Results】 After 6 months, the levels of fasting blood glucose, postprandial blood glucose, HbA1c, and visceral and subcutaneous fat in all the patients decreased, but the level of fasting c-peptide increased compared with the baseline (all P<0.05). Secondly, compared with the baseline, the control rate of HbA1c (35.21% vs. 13.71% ) and the comprehensive control rate (13.97% vs. 7.26% ) were both significantly increased at six months (P<0.05). Thirdly, after 6 months, the levels of fasting blood glucose, postprandial blood glucose, HbA1c, TG, TC, and UA were decreased more, while the fasting c-peptide and postprandial c-peptide were increased more in the patients of the HbA1c standard group (HbA1c<7% ) than those of the non-standard group. 【Conclusion】 The multiple benefits of blood glucose, blood lipid, uric acid and islet function can be achieved by taking type 2 diabetes patients into MMC. Meanwhile, the rates of HbA1c control and comprehensively reaching the standard are significantly increased. Therefore, MMC can explore a new way for the management of type 2 diabetic patients in this area.
8.Risk factors of new-onset hypertriglyceridemia in kidney transplant recipients: a single-center analysis
Yuan XU ; Bo YANG ; Chengxin CHEN ; Kejing ZHU ; Yulin NIU ; Haiyang LI
Organ Transplantation 2023;14(5):691-699
Objective To identify the risk factors of new-onset hypertriglyceridemia (HTG) in kidney transplant recipients. Methods Clinical data of 149 kidney transplant recipients were retrospectively analyzed. According to serum triglyceride (TG) level after operation, they were divided into the non-HTG group (TG≤1.7 mmol/L, n=60) and new-onset HTG group (TG>1.7 mmol/L, n=89). Baseline data of all recipients were compared between two groups. The risk factors of HTG in kidney transplant recipients were analyzed by generalized estimating equation (GEE), and validated by multiple regression equations. Results No significant differences were observed in baseline data between two groups (all P>0.05). Multivariate analysis showed that the incidence of HTG in the middle and high tacrolimus (Tac) concentration groups was higher than that in the low Tac concentration group [odds ratio (OR) 3.11, 95% confidence interval (CI) 1.22-7.93, P=0.018 in the middle Tac concentration group; OR 5.11, 95%CI 1.31-19.98, P=0.019 in the high Tac concentration group]. Compared with type-A blood recipients, the risk of new-onset HTG was significantly increased in type-O blood counterparts (OR 2.77, 95%CI 1.14-6.71, P=0.024). The risk of new-onset HTG was decreased along with the increase of preoperative globulin level (OR 0.93, 95%CI 0.87-0.99, P=0.043). At postoperative 3 months, Tac blood concentration in the new-onset HTG group was significantly higher compared with that in the non-HTG group, and significant difference was observed (P<0.05). Multiple regression equations confirmed that the risk of new-onset HTG in type-O blood kidney transplant recipients was higher than that in type-A blood counterparts, and the risk of new-onset HTG in the middle and high Tac concentration groups was higher than that in the low Tac concentration group (all P<0.05). Conclusions Type-O blood kidney transplant recipients are more prone to HTG. It is necessary to strengthen postoperative monitoring and control of blood lipids. The blood concentration of Tac probably affects the new-onset HTG in kidney transplant recipients. Maintaining an appropriate blood concentration of Tac may be beneficial to lowering the risk of HTG.
9.Control rate of blood glucose and its influencing factors in type 2 diabetes mellitus patients in Yulin City
Jie HU ; Ling ZHANG ; Feng ZHANG ; Yao HAO ; Wanxia HE ; Xiumei ZHANG ; Fuxiang SHI ; Shaojuan FENG ; Jiansheng NIU
Journal of Xi'an Jiaotong University(Medical Sciences) 2022;43(6):901-904
【Objective】 To investigate the control rate of blood glucose and its influencing factors in type 2 diabetes mellitus patients in Yulin area. 【Methods】 We selected the adult type 2 diabetes patients who visited our hospital from May 2020 to December 2021 as the subjects. Then we collected their basic information (gender, age, household income, type of medical insurance payment, education level, and duration of disease), measured their height and weight, calculated their body mass index (BMI), detected HbA1c, and measured their subcutaneous and visceral fat. The Chi-square test and multivariate Logistic regression methods were used to analyze the influencing factors. 【Results】 The total attainment rate of HbA1c (HbA1c<7%) among 877 adults with type 2 diabetes was 13.34%. The Chi-square test showed that statistical differences in the attainment rate of HbA1c among different ages, family annual income, type of medical insurance, and duration of disease. Further unconditional multivariate Logistic regression analysis model results showed that the HbA1c attainment rate in 18-44 years old group was 0.418 times higher than that in ≥60 years old group (95% CI=0.219-0.799, P=0.008). The HbA1c compliance rate of patients with employees’ medical insurance was 1.744 times that those with residents’ medical insurance (95% CI=1.131-2.782, P=0.013). The HbA1c attainment rate of diabetic patients with an annual family income of 30 000 yuan to 100 000 yuan was 1.873 times (95% CI=1.074-3.266, P=0.027), and with an annual family income of more than 100 000 yuan was 2.649 (95% CI=1.299-5.404, P=0.007) times than that of diabetic patients with less than 30 000 yuan. 【Conclusion】 The blood glucose control rate in adults with type 2 diabetes mellitus in Yulin area is lower compared with the level of the nation and other regions. Age, annual household income, and type of medical insurance payment are independent influencing factors.
10.Study of left atrial volume and function by real-time three-dimensional echocardiography between hyperthyroidism and hyperthyroid heart disease
Fan GAO ; Jianjun YUAN ; Yulin NIU ; Xijun ZHANG ; Jing TIAN ; Limin ZHU ; Haohui ZHU
Chinese Journal of Ultrasonography 2021;30(9):764-771
Objective:To explore the application value of real-time three-dimensional echocardiography (RT-3DE) in evaluating the characteristics and regularities of left atrial volume and function changes in patients with hyperthyroidism and hyperthyroid heart disease.Methods:Fifty-six patients who were diagnosed with hyperthyroidism and hyperthyroid heart disease without treatments in Henan Provincial People′s Hospital from March 2020 to September 2020 were selected. They were divided into hyperthyroidism group(30 patients) and hyperthyroid heart disease group (26 patients). Another 30 healthy volunteers were selected as the control group. The following parameters were obtained by RT-3DE left atrial automatic quantification technology, left atrial minimum, maximum, presystolic volume index(LAVImin, LAVImax, LAVIpreA), left atrial passive, active emptying volume index and stroke volume index (LAVIp, LAVIa, LAVIEV), left atrial passive, active, total ejection fraction(LApEF, LAaEF, LAEF), during left ventricular systole, early diastole, late diastole left atrial longitudinal strain (LASr, LAScd, LASct) and circumferential strain (LASr-c, LAScd-c, LASct-c). The differences of the above parameters between the two groups were compared.Results:Compared with the control group, LAVImax, LAVIpreA, LAaEF, LAVIEV, LAVIa, LASr, LASct-c increased and LApEF decreased in the hyperthyroidism group (all P<0.05). While, LAVImin, LAVImax, LAVIpreA and LAVIEV increased, and LAaEF, LApEF, LAEF, LASct, LAScd-c and LASr-c decreased in hyperthyroid heart disease group(all P<0.05). Compared with the hyperthyroidism group, LAVImin, LAVImax and LAVIpreA in hyperthyroid heart disease group were further increased, while LAEF, LAaEF, LASr, LASr-c, LASct, LASct-c and LAScd-c were decreased (all P<0.05). LAEF were positively correlated with LASr and LASr-c ( r=0.617, 0.837; all P<0.01), LApEF were positively correlated with LAScd and LAScd-c ( r=0.620, 0.800, all P<0.01), LAaEF were positively correlated with LASct and LASct-c ( r=0.680, 0.727; all P<0.01). Conclusions:In the patients with hyperthyroidism, the left atrial reserve and systolic function are increased, which are still in the compensation stage, and the pipeline function is decreased. The left atrial reserve, pipeline and systolic function in the hyperthyroid heart disease patients are all decreased, and the pipeline function may be impaired earlier than the systolic and reserve function.


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