1.Patterns of renal injury in type 2 diabetic patients with macroalbuminuria
Pengjie XU ; Hang LI ; Yalan XU ; Yubing WEN ; Xuewang LI
Chinese Journal of Nephrology 2009;25(4):255-260
Objective To find out a more rational pathological classification criteria for renal injury in patients with type 2 diabetes mellitus. Methods The renal clinicopathological features of forty-nine type 2 diabetic patients with maeroalbuminuria were collected and were compared retrospectively. The patients without diabetic renal disease were excluded. According to the pathological features, the patients were divided into two groups: typical diabetic glomerulopathy (DG) and atypical diabetes-related renal disease (ADRD). Results The renal biopsy revealed DG accounted for 59.2% of the patients, while the remaining 40.8% presented atypical renal injury defined as ADRD. In DG group, volume fraction of mesangium per glomerulus, glomerular basement membrane width, atrophic tubules index, intersititium injury index and prevalence of hyalinization of renal arteriole were higher; podocyte density per glomerulus was lower; duration of type 2 diabetes was longer; the level of fast blood glucose, systolic blood pressure, mean arterial pressure, proteinuria and prevalence of diabetic retinopathy (DR) were higher; glomerular filtration rate (GFR) was lower. In ADRD group, body mass index and prevalence of obesity were higher; dyslipidemia was more severe. GFR was negatively correlated with glomerular global sclerosis rate in both DG and ADRD group. Proteinuria was positively correlated with volume fraction of mesangium per glomerulus in DG. No correlation between proteinuria and pathological features was found in ADRD. DR (94.8%) and duration of type 2 diabetes over five years (90.7%) had high negative predictive value for DG. Conclusions Renal injuries in type 2 diabetes patients are heterogeneous. ADRD is an atypical renal injury in type 2 diabetes patients whieh is different from DG. DR and duration of diabetes are more helpful in predicting DG separating from ADRD.
2.Analysis of clinicopathological features in type 2 diabetes mellitus complicated with chronic kidney diseases
Pengjie XU ; Hang LI ; Yalan XU ; Yubing WEN ; Xuewang LI
Chinese Journal of Nephrology 2010;26(10):731-735
Objective To study the pathologic pattern and clinical feature of type 2 diabetes mellitus complicated with chronic kidney diseases (CKD). Methods Clinicopathological features of 155 type 2 diabetic patients complicated with CKD were collected and analyzed retrospectively. The patients were divided into four groups: typical diabetic glomerulopathy (DG),atypical diabetes-related renal disease (ADRD), non-diabetic renal diseases (NDRD) and DG complicated with NDRD. Results Renal biopsies revealed DG accounted for 18.7% of the patients, ADRD accounted for 12.9%, NDRD accounted for 60.0%, and DG complicated with NDRD accounted for 8.4%. In DG group, duration of type 2 diabetes was longer;the level of fast blood glucose, systolic blood pressure, mean arterial pressure and prevalence of diabetic retinopathy (DR) were higher;proteinuria was heavier and evaluated glomerular filtration rate (eGFR) was lower. In ADRD group, body mass index and prevalence of obesity were higher;dyslipidemia was more severe. Gross hematuria and acute renal insufficiency could be only found in NDRD group.Without DR, duration of diabetes under 5 years, gross hematuria, acute renal insufficiency,evidences of autoimmune diseases and proteinuria≥3.5 g/24 h but eGFR ≥60 ml/min were specific valuable predictors for NDRD. Conclusions Renal injuries in type 2 diabetic patients are structural heterogeneous, in which NDRD is more common and is different from ADRD and DG.Renal biopsy should be considered when type 2 diabetic patients complicated with CKD present at least one characteristic as follows: duration of diabetes under 5 years, without DR, history of gross hematuria, acute decrease of renal function, evidences of autoimmune diseases and proteinuria ≥ 3.5 g/24 h but eGFR ≥ 60 ml/min.
3.Study of analgesia and anti-inflammatory effect of Shui ethnic medicine Maguangwa*
Yalan XIA ; Xinkai YAO ; Yihong XU ; Yuesheng YU
Chongqing Medicine 2013;(23):2762-2764
Objective To investigate the analgesic and anti-inflammatory effects of Shui ethnic medicine Maguangwa .Methods Acetic acid-provoked writhing and hot plate provocation of pain were adopted to observe the analgesic effect of Shui ethnic medicine Maguangwa ,and xylene-induced ear swelling was used to observe the anti-inflammatory effect of Shui ethnic medicine Maguangwa There were five experimental groups ,i .e .,the blank control group ,the aspirin group(positive control) ,the 0 .84 g/kg Shui ethnic medicine Maguangwa group(group Ⅰ) ,the 0 .42 g/kg Shui ethnic medicine Maguangwa group(group Ⅱ ) ,and the 0 .21 g/kg Shui ethnic medicine Maguangwa group(group Ⅲ) .Results The writhing latency increased significantly and the writhing frequency de-creased significantly in the positive control group ,group Ⅰ and group Ⅱ ,when compared with the blank control group(P<0 .05) . The writhing latency and frequency differed insignificantly between group Ⅲ and the blank control group(P>0 .05) .Before medica-tion the pain threshold of mice in each group differed insignificantly (P>0 .05) .At 30 min ,60 min ,90 min and 120 min after medi-cation ,the pain threshold increased significantly in the positive control group ,group Ⅰ ,and group Ⅱ ,when compared to the blank control group(P<0 .05) .Meanwhile ,the pain threshold differed insignificantly between group Ⅰ and the positive control group(P>0 .05) ,or between group Ⅲ and the blank control group(P>0 .05) .When compared with the blank control group ,the right ear mass and degree of swelling decreased significantly in the positive control group ,group I and group Ⅱ (P<0 .05) .However ,the right ear mass and degree of swelling differed insignificantly between group Ⅰ and the positive control group(P>0 .05) ,or between group Ⅲ and the blank control group(P>0 .05) .Conclusion Shui ethnic medicine Maguangwa exhibits potent analgesic and anti-inflammatory effects in a dose-dependent manner .
4.Transplantation of bone-marrow derived mesenchymal stem cells to treat rat retinal degeneration
Yuan GUAN ; Lu CUI ; Yalan WU ; Weiya LI ; Guotong XU
Chinese Journal of Ocular Fundus Diseases 2009;25(4):249-253
Objective To observe the effects of subretinal transplantation of rat mesenchymal stem cells (rMSCs) on Sodium Iodate (SI)-induced retinal degeneration.Methods One hundred and twenty Brown-Norway (BN) rats were divided into three groups including SI injection group,rMSCs transplantation group and normal control group,each with 40 rats.The retinal degeneration was induced by caudal vein injection of SI.The retinal pigment epithelium(RPE)and neural retinal were evaluated by ocular fundus photograph,fluorescein fundus angiography (FFA),electroretinogram (ERG) and histological approach,and TUNEL(terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling).CM-Dilprelabeled primary rMSCs were transplanted into the subretinal space of Sl-induced rats.The survival,integration,and differentiation of rMSCs were observed between 14 day to 60 day after the transplantation.Results The rat retinal function was gradually reduced afterl4 days of SI injection,with a time-dependent manner.After the RPE cells were damaged,the outer segments of photoreceptors became disrupted and shortened until karyopyknosis.The nuclear morphology and positive TUNEL labeling indicated that the death of photoreceptor cells was apoptosis.After rMSCs transplantation,CM-DiI labeled donor cells were observed to be scattered in the subretinal space and expressed RPE cell markers.Average amplitude of bwave and Ops (oscillation potential) in ERG improved 27.80%,59.38% respectively after rMSCs transplantation.Conclusions Transplanted rMSCs can survive in subretinal space and differentiate into RPE cells,thus cure SI- induced retinal degeneration.
5.Information Controlling Evaluation of Concentration Exceeding Standard of Positive Ions in Parenteral Nutrition Orders
Yuanqing XU ; Jiayi GUO ; Yalan ZHU ; Xianghong YE
China Pharmacist 2017;20(5):933-935
Objective: To evaluate the self-developed intelligent assist order system for parenteral nutrition on the control of concentration exceeding standard of positive ions.Methods: The special comments, pharmacist audit and information control were used to intervene the concentration exceeding standard of positive ions in parenteral nutrition orders and the effect of the three intervention methods were evaluated.Results: For the intervention of concentration exceeding standard of positive ions in parenteral nutrition orders, the information control was better than the special comments and pharmacists audit.Conclusion: The intelligent assist order system for parenteral nutrition can solve the problem of concentration exceeding standard and promote the rational application of parenteral nutrition in hospitals.
6.Early esophageal cancer or precancerous lesions treated by endoscopic resection: a single-center retrospective study of 368 cases
Yalan LIU ; Dongxian JIANG ; Yingyong HOU ; Jieakesu SU ; Haiying ZENG ; Jie HUANG ; Yifan XU ; Chen XU
Chinese Journal of Clinical and Experimental Pathology 2017;33(6):606-612
To investigate the clinicopathological features as well as prognosis of early esophageal squamous cell neoplasm (ESCN) treated with endoscopic resection (ER).Methods 368 patients were collected from 2007 to 2013.Clinicopathological features including invasion depth and margin were evaluated.Survival curves were constructed by using the Kaplan-Meier method.Univariate and multivariate Cox proportional hazard regression models were performed to identify associations with outcome variables.Results There were 252 males and 116 females with a median age of 61 (16-84) years.Patient numbers of hyperplasia,low grade intraepithelial neoplasia,high grade intraepithelial neoplasia,m1,m2,m3,sm1 and sm2 were 47(12.8%),61 (16.6%),61 (16.6%),54(14.7%),38(10.3%),63(17.1%),12(3.3%) and 32(8.7%),respectively.The cumulative overall 1-year,3-year,and 5-year rates of survival in the metachronous esophageal lesions were 4.1%,12.9% and 32.6%,respectively.The incidence of lymph node/distant metastasis was 1.54% in m3,6.25% in sm2,and 0 in other subgroups.The overall 1-year,3-year,and 5-year survival rates were 99.5%,97.3%,and 87.5%,respectively.Significant difference was identified between sm2 and non-sm2 patients in metastatic rate (P =0.021),however,no significant difference existed between m3 patients and sm2 patients (P =0.252).Metachronous esophageal lesion and survival between sm2 and non-sm2 patients demonstrated no statistical difference (P =0.401 and P =0.634).Conclusion ER is an effective and relatively safe treatment for superficial ESCN.The procedure is still appropriate in selecting sin2 patients.It is necessary to monitor the second primary cancer in sm2 patients during follow-up.
7.Serpins as important protective factors in the pathogenesis of acute lung injury/acute respiratory distress syndrome
Jinquan ZHANG ; Caiming XU ; Guixin ZHANG ; Yalan LUO ; Peng GE ; Hailong CHEN
Chinese Critical Care Medicine 2021;33(3):368-372
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common respiratory disease in clinic, and with a pathological manifestation of pulmonary edema, decreased pulmonary compliance as well as pulmonary epithelial/endothelial cells injury. At present, it was suggested that systemic inflammatory response syndrome (SIRS) caused by various causes which play an important role in the occurrence and development of ALI/ARDS. Widely activated neutrophils can migrate to lung tissue and release plenty of proteases in the procedure of SIRS, including neutrophil serine proteases (NSPs), lysozyme, myeloperoxidase and collagenase, which can induce severe lung injury. Meanwhile, NSPs, such as neutrophil elastase (NE), cathepsin G (CG), proteinase 3 (PR3) and neutrophil serine proteinase 4 (NSP4), are important in the pathogenesis of ALI/ARDS. Therefore, Serpins may protect lung tissue by inhibiting NSPs. However, the specific mechanism of Serpins is not totally clear. In this article, we will discuss the mechanism of action of NSPs in the inflammatory response of ALI/ARDS, the structural overview of Serpins, the primary role of Serpins in ALI/ARDS,such as the inhibition of NSPs activity, other roles of Serpins in ALI/ARDS, such as the inhibition of inflammatory factor release, regulation of apoptosis and protection of vascular endothelial cells and pulmonary surfactant-associated glycoprotein D (SP-D), and the clinical application of exogenous Serpins in ALI/ARDS to explore the role of Serpins in the pathogenesis of ALI/ARDS. The aim is to provide new ideas and strategies for the clinical treatment of ALI/ARDS.
8.Effects of Zuogui Jiangtang Jieyu Formula on Hippocampal Neuronal Apoptosis in Diabetic ;Rats with Depression
Pan MENG ; Hongqing ZHAO ; Qing DU ; Yuhong WANG ; Hui YANG ; Xuli ZHANG ; Yalan XU
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(9):78-81
Objective To observe the effects of Zuogui Jiangtang Jieyu Formula (ZJJF) on the ability of learning and memory and the expressions of JNK, Bcl-2 and Bax in hippocampus in diabetic rats with depression; To explore the protective mechanism of hippocampal damage in diabetic rats with depression. Methods High-fat gavage combined with intravenous injection of STZ was used to establish the model of diabetic rats. 28 days of chronic stress was given continuously and diabetic rats complicated with depression were built successfully. Then rats were randomly divided into 6 groups, including normal, model, positive medicine, high-, medium-, and low-dose of ZJJF groups. After the last administration, Morris water maze was used to detect escape latency time;Western blot was used to disclose the protein expressions of JNK, Bcl-2 and Bax in rat hippocampaus;RT-PCR was used to test the gene expressions of JNK and Bcl-2 and Bax. Results Compared with the normal group, escape latency time in model rats was significant longer (P<0.01), the protein and gene expression of JNK and Bax in rat hippocampaus significantly increased, Bcl-2 was markedly decreased (P<0.05, P<0.01);Compared with the model group, escape latency time in positive medicine group and high-dose of ZJJF group was significant shorter (P<0.01), the protein and gene expressions of JNK and Bax significantly decreased, and Bcl-2 markedly increased (P<0.05, P<0.01). Conclusion ZJJF can significantly improve the ability of learning and memory in diabetic rats with depression, which might be associated with preventing neuronal apoptosis in hippocampus.
9.Effect of somatostatin analogue octreotide on metabolism of LPS-induced A549 cells
Luoyang RUAN ; Xiaohong XU ; Fengjuan PAN ; Cuiming ZHONG ; Xiaohua TIAN ; Cailan YANG ; Yalan LI
Chinese Journal of Pathophysiology 2016;32(9):1694-1699
AIM: To investigate the effects of octreotide on metabolism in the A549 cells treated with lipopo-lysaccharides ( LPS).METHODS: The technologies of gas chromatography/mass spectrometry (GC/MS) and liquid chromatography/mass spectrometry (LC/MS) were used to test the metabolism of lung A549 cells subject to different treat-ment with LPS and/or octreotide.The results were visualized and checked by chromatogram, and the corresponding intensi-ty data were analyzed by the principal component analysis(PCA)method.The metabolites with different expression and the underlying interaction network were resolved.RESULTS: The metabolism analysis by LC/MS method indicated that there were different expression levels between different treated groups.Further analysis was carried out by orthogonal projections to latent structures-discriminant analysis (OPLS-DA) and the different expressed metabolites were obtained, which were mainly amino acids and phospholipids.By analyzing with GC/MS method and t-test, the different expressed metabolites were mainly organic acid, saccharides and amino acid metabolite.The interaction network diagram was constructed about the response of A549 cells induced by LPS and/or octreotide, including glycolysis/gluconenogenesis, tryptophan metabo-lism, galactose metabolism, urine cycle and citrate cycle.Fourteen key components were found such as serotonin, indole, threonine, serine, glucose, phenylalanine, lactose, fumarate, 4-hydroxyphenyllactate, aspartate, asparagine, putrescine, proline and succinate.CONCLUSION: In octreotide treated LPS-induced A549 cells, the main metabolites are organic acid, saccharides, amino acids and phospholipids.The interaction network is constructed, including 5 metabolic pathways
and 14 key components.
10.Effects of Zuogui Jiangtang Jieyu Formula on Hippocampus Neuron Apoptosis Related Proteins under Diabetes Mellitus with Depression States
Jia LING ; Qin YANG ; Jian LIU ; Yuhong WANG ; Yalan XU ; Yuanshan HAN ; Hui YANG ; Pan MENG
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):35-39
Objective To investigate the regulating effects of Zuogui Jiangtang Jieyu Formula (ZJJF) on Bcl-2, Bax and Caspase-8 in hippocampus neuron damage in diabetes mellitus with depression (DD). Methods Hippocampal neurons from 18 d pregnant rats were primitively cultivated, and then combination of glucose and corticosterone was used to construct DD simulation environment. Cultivated hippocampal neurons were randomly divided into normal group, blank serum group, model group, positive medicine (metformin+fluoxetine) serum group and to-be-tested medicine (ZJJF) serum group. Normal group and model group were given same amount culture medium, while other group were given relevant amont of 10% medicine serum or blank serum. After modeling intervention for 18 h,Hoechst staining was used to detect the apoptosis of hippocampal neurons. The expression of Bcl-2, Bax and Caspase-8 was detected by high content analysis. Results Compared with the control group, hippocampal neuron dendrites ruptured or decreased, neural network connection decreased, cells showed significant staining, broken, uneven distribution of light spots, the expression of Bcl-2 protein decreased significantly (P<0.05), but Bax and Caspase-8 were increased (P<0.05, P<0.01). Compared with the model group, hippocampal neurons in both positive medicine serum group and ZJJF serum group gradually recovered. Hoechst staining showed that the nuclei were significantly homogenized, local highlights were significantly reduced, Bcl-2 protein expression levels were significantly increased (P<0.05, P<0.01), while Bax and Caspase-8 were obviously down-regulated (P<0.05, P<0.01). Conclusion ZJJF has protective effects on hippocampal neurons in DD of model rats, and its mechanism is related to regulating the expression of Bcl-2, Bax and Caspase-8 in hippocampus neuron.