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1.
Article in Chinese | WPRIM | ID: wpr-940346

ABSTRACT

ObjectiveTo study the effect and mechanism of Wuwei Xiaoduyin in treating rat renal mesangial cells (HBZY-1) induced by lipopolysaccharide (LPS) through the nuclear factor-κB (NF-κB) signaling pathway. MethodRat HBZY-1 cells were randomly assigned into the normal group, model group, benazepril (50 μmol·L-1) group, and high- and low-dose (2.75 and 0.69 g·kg-1) Wuwei Xiaoduyin groups. The normal group, model group, and benazepril group were treated with 10% normal rat serum, and the Wuwei Xiaoduyin groups with 10% medicated serum. Except the normal group, the other four groups were treated with LPS (100 ng·mL-1) for modeling in vitro. The changes of cell morphology were observed under optical microscope. The expression of NF-κB p65 was detected by immunofluorescence (IF) method. Methyl thiazolyl tetrazolium (MTT) colorimetry was employed to detect cytotoxicity and cell proliferation. The levels of interleukin-1β (IL-1β), intercellular adhesion molecule-1 (ICAM-1), laminin (LN), and fibronectin (FN) in cell supernatant were determined by enzyme-linked immunosorbent assay (ELISA). The mRNA levels of IL-1β, FN, and NF-κB p65 were measured by real-time fluorescence quantitative PCR. The protein levels of phosphorylated inhibitor of NF-κB kinase β (p-IKKβ), phosphorylated NF-κB inhibitor (p-IκBα), and NF-κB p65 were determined by Western blot. ResultCompared with the normal group, the modeling increased cell proliferation (P<0.01), elevated the levels of IL-1β, ICAM-1, LN, and FN in cell supernatant (P<0.01), and up-regulated the mRNA levels of IL-1β, FN, and NF-κB p65 (P<0.01) and the protein levels of p-IKKβ, p-IκBα, and NF-κB p65 (P<0.01). Such changes were recovered by benazepril and Wuwei Xiaoduyin (P<0.05, P<0.01). ConclusionWuwei Xiaoduyin can mitigate the inflammatory injury of renal mesangial cells induced by LPS by inhibiting the NF-κB signaling pathway.

2.
Article in Chinese | WPRIM | ID: wpr-940433

ABSTRACT

ObjectiveTo preliminarily predict the active components, targets, and signaling pathways of modified Shengjiangsan in the treatment of immunoglobulin A nephropathy (IgAN) based on network pharmacology, and to explore its underlying mechanism through molecular docking and experimental verification on animals. MethodThe active ingredients and related targets of modified Shengjiangsan were obtained from Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP), UniProt, SwissTargetPrediction, and literature review. IgAN-related targets were obtained from GeneCards and Online Mendelian Inheritance in Man (OMIM). Cytoscape 3.9.0 was used to construct the regulation network of the related targets of Shengjiangsan and IgAN, and the protein-protein interaction (PPI) network was plotted by STRING. The common genes were analyzed for gene ontology (GO) functional annotation and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment by Metascape. Key targets and main active ingredients were selected for molecular docking by AutoDockTools 1.5.6. The experimental model of IgAN was induced by bovine serum albumin(BSA, ig) combined with lipopolysaccharide (LPS, iv) and the complex of CCl4 and castor oil (sc) in rats. The model rats were treated with modified Shengjiangsan and benazepril hydrochloride for four weeks. The rats were sacrificed after drug administration. The levels of transforming growth factor-β1 (TGF-β1) and interleukin-6 (IL-6) in the serum and kidney tissues were detected by enzyme-linked immunosorbent assay(ELISA), immunohistochemistry, Real-time quantitative polymerase chain reaction (Real-time PCR), and Western blot. ResultA total of 105 active ingredients were obtained according to oral bioavailability(OB), drug-likeness(DL), and literature screening. There were 124 common genes and 59 core targets. Neurotrophic tyrosine receptor kinase 1 (NTRK1), cullin-3 (CUL3), tumor protein 53 (TP53), epidermal growth factor receptor (EGFR), exportin 1 (XPO1), and other targets might be closely related to IgAN. As predicted by KEGG enrichment analysis, the treatment of IgAN with modified Shengjiangsan mainly involved the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway, nuclear transcription factor-kappa B (NF-κB) signaling pathway, and cytokine-cytokine receptor interaction signaling pathway. As revealed by molecular docking, the main active ingredients in modified Shengjiangsan showed stable binding activities with NTRK1, CUL3, TP53, EGFR, and XPO1 in the core targets, indicating that it presumedly regulated inflammatory responses by affecting NTRK1, CUL3, TP53, EGFR, and XPO1 target proteins. The results of experimental verification on animals showed that the expression levels of cytokines TGF-β1 and IL-6 in the serum and kidney tissues of IgAN rats were significantly decreased by modified Shengjiangsan, suggesting that Shengjiangsan might inhibit excessive fibrosis, and inflammatory and immune responses by regulating signaling pathways such as cytokine-cytokine receptor interaction, PI3K/Akt, and NF-κB. ConclusionModified Shengjiangsan may treat IgAN through multiple targets and pathways. Its mechanism may be related to the inhibition of excessive fibrosis, and inflammatory and immune responses by affecting the expression of NTRK1, CUL3, TP53, EGFR, and XPO1 and the regulation of the cytokine-cytokine receptor interaction, PI3K/Akt, NF-κB, and other signaling pathways.

3.
Article in Chinese | WPRIM | ID: wpr-940483

ABSTRACT

ObjectiveTo observe the intervention of modified Sanrentang on the lipopolysaccharide-induced proliferation of rat glomerular mesangial cells, the phosphatidylinositol-3 kinase(PI3K)/protein kinase B(PKB/Akt)/nuclear factor kappa B(NF-κB) signaling pathway, and to investigate its mechanism in improving kidney inflammation in rats with immunoglobulin A nephropathy(IgAN). MethodThe 18 rats were divided into 3 groups by serum pharmacology method: normal group, high-dose and low-dose (20.70,10.35 g·kg-1·d-1) groups with 6 rats in each group. Modified Sanrentang high- and low-dose groups were intragastric with the corresponding solution of modified Sanrentang, and normal group was intragastric with equal volume of distilled water. After 5 days of intragastric administration, blood samples were collected to prepare drug-containing serum. Rat mesangial (HBZY-1) were divided into five groups of normal group, LPS 10 mg·L-1 in the model group, benazepril(50 μmol·L-1), modified Sanrentang high- and low-dose group. Preclude the use of methyl thiazolyl tetrazolium(MTT) method detect the proliferation activity of HBZY-1 cells, enzyme-linked immunosorbent assay(ELISA) was used to determine the content of each group type Ⅳ collagen(ColⅣ),Western blot and Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) were used to detect protein and mRNA expression levels of PI3K/Akt/NF-κB signaling pathway. ResultAs compared with the normal group, MTT assay showed that exposure to LPS significantly enhanced the proliferative activity, the ColⅣ was increased significantly of HBZY-1 cells(P<0.01), p-Akt, p-p65 was increased significantly (P<0.01). Compared with the model group, the proliferation and ColⅣ of rat chronic glomerulonephritis cells induced by LPS by inhibiting PI3K/Akt/NF-κB signaling pathway(P<0.01), and the phosphorylation of Akt was significantly inhibited(P<0.01), the expression levels of NF-κB p65 was reduced in modified Sanrentang high-dose group(P<0.01). ConclusionModified Sanrentang could inhibit cell proliferation and the content of ColⅣ in rat mesangial cells induced by LPS, and its mechanism might be related to suppression of PI3K/Akt signaling pathway.

4.
Article in Chinese | WPRIM | ID: wpr-940549

ABSTRACT

ObjectiveTo investigate the intervention effect of Danggui Buxuetang on oxidative stress and inflammatory response in diabetic kidney disease (DKD) rats from its improvement of podocyte mitochondrial dysfunction. MethodSD rats were randomly divided into the control group and modeling group, and the ones in the latter group rats were fed a high-glucose and high-fat diet and then intraperitoneally injected with a small dose of streptozotocin (STZ) for inducing type 2 diabetes. The successfully modeled rats were randomized into the model group, high- and low-dose (1.44 and 0.72 g·kg-1) Danggui Buxuetang groups, and irbesartan (0.017 g·kg-1)group and gavaged with the corresponding drugs, while those in the normal and model groups with an equal volume of normal saline. After 20 weeks of drug intervention, the urinary microalbumin-to-urine creatinine ratio (UACR) and serum malondialdehyde (MDA) content and manganese superoxide dismutase (MnSOD) activity in each group were measured. The pathological changes in renal tissue were observed by Masson trichrome staining, and periodic acid-silver metheramine (PASM) staining, followed by the observation of ultrastructural changes in podocytes under the transmission electron microscope (TEM). The expression level of reactive oxygen species (ROS) in rat kidney tissue was detected using a fluorescent probe dihydroethidium (DHE). The protein expression levels of peroxisome proliferator-activated receptor γ -coactivator -1α (PGC-1α), nucleotide-binding domain like receptor protein 3 (NLRP3), and Wilms tumor protein-1 (WT-1) were measured by immunohistochemistry (IHC), and the expression levels of NLRP3, interleukin-1β (IL-1β),and WT-1 in podocytes by immunofluorescence (IF) assay. The mRNA expression levels of PGC-1α and NLRP3 in the renal tissues were determined by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), and the protein expression levels of PGC-1α, MnSOD, NLRP3, and IL-1β were assayed by Western blot. ResultCompared with the normal group, the model group exhibited elevated UACR and MDA content, weakened MnSOD activity (P<0.01), glomerular hypertrophy, thickened basement membrane, mesangial hyperplasia, increased extracellular matrix, K-W nodules, podocyte mitochondrial swelling, disordered mitochondrial cristae, foot process fusion or loss, vacuolization, increased ROS (P<0.01), enhanced NLRP3 and IL-1β but diminished WT-1 expression in podocytes, down-regulated PGC-1α mRNA expression (P<0.01) and PGC-1α and MnSOD protein expression (P<0.01), and up-regulated NLRP3 mRNA expression and NLRP3 and IL-1β protein expression (P<0.01). Compared with the model group, Danggui Buxuetang high-dose group significantly decreased UACR and MDA, enhanced MnSOD activity (P<0.05, P<0.01), improved renal histopathology and podocyte mitochondrial ultrastructure, decreased ROS (P<0.05, P<0.01) and NLRP3 and IL-1β expression in podocytes, enhanced WT-1 expression in podocytes, up-regulated the mRNA and protein levels of PGC-1α and MnSOD, and down-regulated the mRNA and protein levels of NLRP3 and IL-1β (P<0.05, P<0.01). ConclusionDanggui Buxuetang alleviates oxidative stress, reduces inflammatory response, protects kidney, and delays the progression of DKD possibly by improving the mitochondrial dysfunction in podocytes of DKD rats.

5.
Article in Chinese | WPRIM | ID: wpr-940550

ABSTRACT

ObjectiveTo observe the effect of Danggui Buxuetang on the podocyte injury and receptor-interacting protein kinase 1/receptor-interacting protein kinase3/mixed lineage kinase domain-like protein (RIPK1/RIPK3/MLKL) signaling pathway in diabetic kidney disease (DKD) ratsand to explore its possible mechanism against DKD. MethodEight of the 50 SD rats were randomly classified intoa normal group, and the remaining were fed a high-glucose and high-fat diet for six weeks and then intraperitoneally injected with 0.035 g·kg-1streptozotocin (STZ) for inducing type 2 diabetes. After successful modeling,they were randomized into the model group,high- and low-dose (1.44,0.72 g·kg-1) Danggui Buxuetang groups, and irbesartan (0.017 g·kg-1)group. After 20 weeks of drug intervention, the fasting blood glucose (FBG), kidney index (KI),and urinary microalbumin-to-urine creatinine ratio (UACR)were detected in each group. The pathological changes in renal tissue were observed by hematoxylin-eosin (HE) staining, followed by the observation of ultrastructural changes in podocytes under the transmission electron microscope. The levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in renal tissue of rats were determined by enzyme-linked immunosorbent assay (ELISA), and the protein expression levels of RIPK1, RIPK3, and MLKL in rat kidney tissue by immunohistochemistry. The apoptosis rate of podocytes was detected by in situ nick end-labeling (TUNEL) assay. The mRNA expression levels of RIPK1, RIPK3, and MLKL in kidney tissue of rats were measured by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), and the protein expression levels of RIPK, RIPK3, and MLKL and podocyte marker Wilms tumor protein-1 (WT-1) in rat kidney tissue were assayed by Western blot. ResultCompared with the normal group, the model group exhibited elevated FBG, UACR, and KI (P<0.01), glomerular hypertrophy, thickened basement membrane, increased extracellular matrix, mesangial hyperplasia, foot process fusion or loss, enhanced apoptosis in renal tissue, up-regulated TNF-α and IL-6 levels (P<0.01) and RIPK1/RIPK3/MLKL mRNA and protein expression (P<0.01), and down-regulated WT-1 protein expression. Compared with the model group, Danggui Buxuetang high-dose group significantly reduced the levels of FBG, UACR, and KI, improved renal histopathology, podocyte loss, and apoptosis in renal tissue, down-regulated TNF-α and IL-6 levels and RIPK1/RIPK3/MLKL mRNA and protein expression (P<0.05, P<0.01), and up-regulated WT-1 protein expression. ConclusionDanggui Buxuetang alleviates podocyte injury and delays the development of DKD possibly by regulating the RIPK1/RIPK3/MLKL signaling pathway.

6.
Article in Chinese | WPRIM | ID: wpr-940551

ABSTRACT

ObjectiveTo observe the effect of Danggui Buxuetang on podocyte pyroptosis in diabetic kidney disease (DKD) rats and to explore the possible mechanism of its prevention and treatment of DKD and podocyte pyroptosis. MethodEight of the 50 male SD rats were randomly classified into a normal group, and the remaining 42 were fed a high-glucose and high-fat diet for six weeks and then intraperitoneally injected with 35 mg·kg-1 streptozotocin (STZ) for inducing type 2 diabetes. After successful modeling, they were randomized into the model group, low- (0.72 g·kg-1) and high-dose (1.44 g·kg-1) Danggui Buxuetang group, and irbesartan (0.017 g·kg-1) group and gavaged with the corresponding drugs, while those in the normal group and model group with an equal volume of normal saline, once per day, for 20 weeks. During the medication, the fasting blood glucose (FBG) and 24 h urine protein (24 h-UTP) were measured regularly. After administration, the pathological changes in renal tissues were observed by periodic acid-silver metheramine (PASM) staining, followed by the observation of ultrastructural changes in podocytes under the transmission electron microscope (TEM). Serum levels of interleukin-1β (IL-1β) and interleukin-18 (IL-18) were determined by enzyme-linked immunosorbent assay (ELISA). The DNA damage in renal tissue cells of rats was detected by in situ nick end-labeling (TUNEL) assay. The protein expression levels of thioredoxin interacting protein (TXNIP), cysteine-dependent aspartate-directed protease-1 (Caspase-1), and gasdermin D (GSDMD) in renal tissues of rats were detected by immunohistochemistry (IHC), the expression levels of nucleotide binding domain like receptor protein 3 (NLRP3) and Wilms tumor protein-1 (WT-1) in podocytes by immunofluorescent (IF) staining, and the expression levels of TXNIP/NLRP3/Caspase-1/GSDMD pathway proteins and Synaptopodin in renal podocytes by Western blot. ResultCompared with the normal group, the model group exhibited increased FBG and 24 h UTP, glomerular hypertrophy, mesangial hyperplasia, increased extracellular matrix, thickened basement membrane, K-W nodules, vacuolar degeneration in renal tubular epithelial cells, foot process fusion or loss, elevated serum IL-1β and IL-18 levels and TUNEL-positive cells in renal tissue, enhanced NLRP3 but diminished WT-1 expression in podocytes, down-regulated Synaptopodin protein expression, and up-regulated TXNIP/NLRP3/Caspase-1/GSDMD protein expression (P<0.01). Compared with the model group, Danggui Buxuetang high-dose group remarkably lowered FBG, 24-h UTP, and TUNEL-positive cells in renal tissue, improved renal histopathology and podocyte injury and loss, down-regulated NLRP3 expression in podocytes and TXNIP/NLRP3/Caspase-1/GSDMD protein expression levels, and up-regulated WT-1 expression in podocytes and Synaptopodin protein expression (P<0.05, P<0.01). ConclusionDanggui Buxuetang inhibits podocyte pyroptosis to reduce proteinuria and delays the development of DKD possibly by regulating the TXNIP/NLRP3/GSDMD signaling pathway.

7.
Article in Chinese | WPRIM | ID: wpr-940552

ABSTRACT

The increasing incidence of obesity and diabetes has made diabetic kidney disease (DKD) the main cause of chronic kidney disease and end-stage renal disease. Despite current pharmacological interventions for blood glucose control and renin-angiotensin system inhibition, the risk of kidney disease progression and complications remains high. At present, the pathogenesis of DKD has been clarified to be related to chronic inflammatory response, oxidative stress, glucose and lipid metabolism disorders, and hemodynamic abnormalities. According to recent studies, the programmed cell deaths (PCD) of renal intrinsic cells such as pyroptosis and necroptosis play a key role in the occurrence and development of DKD. Pyroptosis and necroptosis, the two newly discovered routes of PCD, can protect the hosts from being invaded by microbial pathogens, but their dysregulation is associated with multiple autoimmunity and autoinflammatory responses. Pyroptosis and necroptosis are closely interlinked and cross-regulated. Different from apoptosis, these two cellular suicide mechanisms cause membrane rupture and release of cell contents through their respective gasdermin D (GSDMD) and mixed lineage kinase domain-like protein (MLKL), with damage-associated molecular patterns (DAMPs) and inflammatory cytokines like interleukin-1β (IL-1β) involved to trigger inflammation, and chronic inflammatory responses are key factors leading to the progression of DKD. Traditional Chinese medicine (TCM) has long been employed for the prevention and treatment of DKD and the resulting clinical outcomes are remarkable. TCM has been proved to exert a protective effect against DKD by affecting the expression of nucleotide oligomerization domain-like receptor protein 3 (NLRP3) inflammasome, receptor-interacting protein kinase 3 (RIPK3), and MLKL. This paper reviewed the relationship of pyroptosis and necroptosis with DKD and its intervention with TCM.

8.
Article in Chinese | WPRIM | ID: wpr-906480

ABSTRACT

Objective:To observe the effect of Wuwei Xiaoduyin on the nuclear factor-<italic>κ</italic>B (NF-<italic>κ</italic>B) signaling pathway in immunoglobulinA nephropathy(IgAN) rats, and to explore its mechanism of action in the treatment of IgA nephropathy. Method:The 40 SD rats were randomly divided into control group, model group, benazepril group (10 mg·kg·d<sup>-1</sup>) and Wuwei Xiaoduyin group (2.75 g·kg·d<sup>-1</sup>), with 10 rats in each group. The IgA nephropathy rat model was established by intragastric administration of bovine serum albumin (BSA), subcutaneous injection of carbon tetrachloride (CCl<sub>4</sub>) and tail vein injection of lipopolysaccharide (LPS) for 9 weeks. The rats in each group were given corresponding doses of drugs by gavage, while the rats in the control group and model group were given the same amount of normal saline for successive 28 days. The levels of 24-hour urinary protein (UTP), serum creatinine (SCr), blood urea nitrogen (BUN) and serum albumin (ALB) were detected. The contents of tumor necrosis factor-<italic>α</italic> (TNF-<italic>α</italic>), interleukin-1<italic>β</italic> (IL-1<italic>β</italic>) and interleukin-6 (IL-6) in serum were detected by enzyme-linked immunosorbent assay (ELISA), the hematoxylineosin staining (HE), immunofluorescence and transmission electron microscopy were used to observe the renal pathological changes, the expressions of IL-6, I<italic>κ</italic>B kinase <italic>β</italic> (IKK<italic>β</italic>), phosphorylated I<italic>κ</italic>B kinase <italic>β</italic> (p-IKK<italic>β</italic>), NF-<italic>κ</italic>B inhibitor protein <italic>α</italic> (I<italic>κ</italic>B<italic>α</italic>), phosphorylated NF-<italic>κ</italic>B inhibitor protein <italic>α</italic> (p-I<italic>κ</italic>B<italic>α</italic>), NF-<italic>κ</italic>B p65 and p-NF-<italic>κ</italic>B p65 were detected by immunohistochemistry (IHC), real-time PCR (RT-PCR) and Western blot, respectively. Result:Compared with the control group, the level of UTP in the model group significantly increased (<italic>P</italic><0.01), cultured glomerular mesangial cells proliferated, mesangial matrix and electronic dense deposit increased, mesentery thickened. A large amount of IgA was deposited in the glomerular mesangial area and showed irregular particles and mass distribution, the levels of TNF-<italic>α</italic>, IL-1<italic>β</italic>, IL-6 in serum significantly increased (<italic>P</italic><0.01), the expression levels of IL-6, IKK<italic>β</italic>, p-IKK<italic>β, </italic>NF-<italic>κ</italic>B p65 and p-NF-<italic>κ</italic>B p65 in renal tissue significantly increased (<italic>P</italic><0.01).Compared with the model group, the levels of UTP in each administration group significantly decreased (<italic>P</italic><0.01), and the renal tissue injury alleviated, the levels of TNF-<italic>α</italic>, IL-1<italic>β</italic>, IL-6 in serum significantly decreased (<italic>P</italic><0.01), the expressions of IL-6, IKK<italic>β</italic>, p-IKK<italic>β</italic>, I<italic>κ</italic>B<italic>α</italic>, p-I<italic>κ</italic>B<italic>α</italic>, NF-<italic>κ</italic>B p65 and p-NF-<italic>κ</italic>B p65 in the renal tissue significantly decreased (<italic>P</italic><0.01). There were no significant differences in serum creatinine, blood urea nitrogen and serum albumin among the groups. Conclusion:Wuwei Xiaoduyin can reduce proteinuria in IgA nephropathy rats, and its mechanism may be related to the inhibition of NF-<italic>κ</italic>B signaling pathway and the over expression of related inflammatory factors.

9.
Article in Chinese | WPRIM | ID: wpr-313183

ABSTRACT

<p><b>OBJECTIVE</b>To observe the curative effect of Shenyanning (SYN) on non-nephrotic syndrome IgA nephropathy (IgAN).</p><p><b>METHODS</b>Seventy primary IgAN patients were equally randomized into two groups, the treatment group and the control group, they were orally treated with SYN Decoction (one dose per day) and Losartan (50 mg per day) respectively for 1 year. Efficacy of treatment, Chinese medicine syndrome scores, end-point events occurrence as well as changes of related laboratory indices were observed.</p><p><b>RESULTS</b>The total effective rate in the treatment group was obviously higher than that in the control group (77.1% vs. 54.3%, P < 0.05). After treatment, the Chinese medicine syndrome scores, urinary protein and urinary red-cell count reduced significantly in the treatment group (P < 0.05 or P < 0.01) and showed significant difference as compared with those in the control group (P < 0.05 or P < 0.01); while the endogenous creatinine clearance was changed insignificantly in both groups. Beside, the occurrence of end-point events in the treatment group was slightly lower than that in the control group, though showed no statistical difference between them.</p><p><b>CONCLUSION</b>The curative effect of SYN in treating IgAN was obviously better than that of simple Western medicine.</p>


Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Diagnosis, Differential , Drugs, Chinese Herbal , Therapeutic Uses , Glomerulonephritis, IGA , Drug Therapy , Hematuria , Urine , Losartan , Therapeutic Uses , Medicine, Chinese Traditional , Phytotherapy , Proteinuria , Urine
10.
Article in Chinese | WPRIM | ID: wpr-344001

ABSTRACT

<p><b>OBJECTIVE</b>To observe the clinical effect of combined treatment with safflor yellow powder injection and benazepril in treating patients with diabetic nephropathy (DN).</p><p><b>METHODS</b>Seventy-six patients with DN were randomly assigned to the treatment group (39 cases) and the control group (37 cases). Conventional treatment for lowering blood glucose was given to both groups, but to the control group 10 mg benazepril was given orally once a day additionally, while to those in the treatment group the same dosage of benazepril po. and 150 mg/d of safflor yellow powder injection by adding in 250 mL 0.9% normal saline for intravenous dripping. The therapeutic course for them all was 15 days, and all patients received two courses with an interval of 5 days. Changes of clinical symptoms, urinary albumin excretion rate (UAER), blood and urinary levels of beta2 -microglobulin (beta2 -MG), urinary level of alpha1-microglobulin (alpha1 -MG), D-dimer (D-D) and plasma fibrinogen (FIB) were observed.</p><p><b>RESULTS</b>The total effective rate in the treatment group was higher than that in the control group (84.62% vs 59.45 %, P < 0.05). The total score of syndrome in the treatment group was lower than that in the control group (P < 0.05). Levels of UAER, 132-MG in serum and in urine, alpha1-MG in urine were decreased significantly after after 2 courses of treatment in both groups, showing significant difference as compared with before treatment (P < 0.05 or P <0.01), and the decrements were more significant in the treatment group than those in the control group (P <0.05); while decrease of FIB, D-D only happened in the treatment group (P <0.01), so the post-treatment data in the treatment group were significantly lower as compared with those in the control group (P <0.01).</p><p><b>CONCLUSION</b>Combined therapy with safflor yellow injection and benazepril is superior to benazepril alone in reducing urinary albumin, improving renal function and blood hyperviscosity manner for patients with DN, suggesting the combination of the two could play their respective superiorities and act in cooperation for retarding the progression of DN.</p>


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Albumins , Benzazepines , Blood Glucose , Diabetic Nephropathies , Drug Therapy , Metabolism , Urine , Drug Therapy, Combination , Drugs, Chinese Herbal , Kidney Function Tests
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