1.Pharmacoeconomic evaluation of finerenone combined with standard treatment regimen in the treatment of diabetic nephropathy
Hai LIANG ; Runan XIA ; Panpan DI ; Mengmeng ZHAO ; Pengcheng ZHANG ; Yashen HOU ; Hong ZHANG ; Wei WU ; Miao YANG
China Pharmacy 2025;36(1):86-90
OBJECTIVE To evaluate the cost-effectiveness of finerenone combined with standard treatment regimen in the treatment of diabetic nephropathy (DN). METHODS From the perspective of healthcare service providers, a Markov model was established to simulate the dynamic changes of each stage in DN patients who received finerenone combined with the standard treatment regimen or the standard treatment regimen alone based on the phase Ⅲ clinical trial study of finerenone for DN. Markov model was used to perform the cost-effectiveness of long-term effects and the costs of the two therapies with a simulation cycle of 4 months, a simulation period of 15 years and an annual discount rate of 5%. At the same time, one-way sensitivity analysis and probability sensitivity analysis were performed, and the stability of the results was validated. RESULTS Accumulative cost of the standard treatment regimen was 579 329.54 yuan, and the accumulative utility was 8.052 4 quality-adjusted life year (QALYs); the accumulative cost of finerenone combined with the standard treatment regimen was 332 520.61 yuan, and the accumulative utility was 8.187 4 QALYs. Finerenone combined with the standard treatment regimen was more cost-effective. The results of one-way sensitivity analysis showed that dialysis status utility value, DN stage 3 utility value and DN stage 4 utility value had a great influence on the incremental cost-effectiveness ratio, but did not affect the robustness of the model. The results of probability sensitivity analysis showed that finerenone combined with the standard treatment regimen was more cost-effective with 100% probability. CONCLUSIONS For DN patients, finerenone combined with the standard treatment regimen is more cost-effective as an absolute advantage option.
2.Fufang Kangjiaolv Capsules Treat Anxiety in Rat Model of Chronic Restraint Stress via Microbiota-gut-brain Axis
Wenxin FAN ; Tingyue JIANG ; Yu WANG ; Ge ZHANG ; Yifan LU ; Mengmeng LIU ; Jiayuan LI ; Renzhi MA ; Jinli SHI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):95-107
ObjectiveTo observe the intervention effect of Fufang Kangjiaolv capsules on anxiety-like behaviors in the rat model of chronic restraint stress (CRS) and explore the mechanism underlying the anti-anxiety effect via the microbiota-gut-brain axis. MethodsRats were assigned into blank, model, positive drug (diazepam, 1 mg·kg-1), and low-, medium-, and high-dose (0.75, 1.5, 3 g·kg-1, respectively) Fufang Kangjiaolv capsules groups. After 14 days of administration, the elevated plus maze test, open field test, light and dark box test, and marble burying test were performed. Hematoxylin-eosin staining was employed to observe the pathological changes in the hippocampus and colon of rats, and Nissl staining was conducted to observe the damage of hippocampal neurons. The gut microbiota was analyzed by 16S rRNA gene sequencing. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was employed to determine the mRNA levels of zonula occludens-1 (ZO-1) and occludin in the colon of rats. The levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in the colon, serum, and hippocampus were determined by enzyme-linked immunosorbent assay. Western blot was employed to determine the protein levels of ZO-1, occludin, nuclear factor-κB p65 (NF-κB p65) in the colon tissue and NF-κB p65 and brain-derived neurotrophic factor (BDNF) in the hippocampal tissue. ResultsCompared with the blank group, the model group showed reductions in the time and frequency ratio of rats entering the elevated plus maze, the time and frequency of rats entering the central area of the open field, the time of entering the open box, the times of passing through the light and dark box, and the number of unburied beads (P<0.05, P<0.01). Compared with the model group, Fufang Kangjiaolv capsules ameliorated the anxiety of the model rats to varying degrees, and the high-dose group had the best effect, with increases in the proportions of time and frequency of rats entering the open arm in the elevated plus maze (P<0.05), the number of rats entering the central area in the open field (P<0.05), the time of entering the open box, the times of passing through the light and dark boxes, and the number of unburied beads (P<0.01). Moreover, the high-dose group showed alleviated pathological damage of hippocampal neurons and colon. The results of 16S rRNA gene sequencing showed that the model group had increased relative abundance of Firmicutes, Deferribacterota, Romboutsia, and Phascolarctobacterium, while it had decreased relative abundance of Bavcteroidota and Lactobacillus. The drug administration groups showed increased relative abundance of Bavcteroidota, Bacteroides, norank f norank o Clostridia UCG-014, and Blautia and decreased relative abundance of Firmicutes and Deferribacterota. Compared with the blank group, the model group showed down-regulated protein and mRNA levels of ZO-1 and occludin in the colon (P<0.01), elevated levels of TNF-α, IL-6, and IL-β in the colon, serum, and hippocampus (P<0.01), up-regulated protein level of NF-κB p65 in the colon and hippocampus (P<0.01), and down-regulated protein level of BDNF in the hippocampus (P<0.05). Compared with the model group, high-dose Fufang Kangjiaolv capsules up-regulated the mRNA levels of ZO-1 and occludin in the colon (P<0.01), lowered the levels of TNF-α, IL-6, and IL-β in the colon, serum, and hippocampus (P<0.01), up-regulated the protein levels of ZO-1 (P<0.01) and occludin (P<0.05) in the colon, down-regulated the protein level of NF-κB p65 in the colon and hippocampus (P<0.05), and up-regulated the protein level of BDNF in the hippocampus. ConclusionFufang Kangjiaolv capsules can reduce the anxiety-like behaviors in the rat model of CRS by regulating the gut microbiota disturbance, up-regulating the expression of tight junction proteins in the colon, repairing intestinal mucosal mechanical barrier, and down-regulating NF-κB/BDNF signaling pathway, thereby reducing peripheral and central inflammation. This study proves the hypothesis that Fufang Kangjiaolv capsules play an anti-anxiety role via the microbiota-gut-brain axis, providing a new idea for further research.
3.Dipsacus asper Treats Alzheimer's Disease in Caenorhabditis elegans by Regulating PPARα/TFEB Pathway
Mengmeng WANG ; Jianping ZHAO ; Limin WU ; Shuang CHU ; Yanli HUANG ; Zhenghao CUI ; Yiran SUN ; Pan WANG ; Hui WANG ; Zhenqiang ZHANG ; Zhishen XIE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):104-114
ObjectiveTo investigate the anti-Alzheimer's disease (AD) effect of Dipsacus asper(DA) in the Caenorhabditis elegans model, and decipher the underlying mechanism via the peroxisome proliferator-activated receptor α (PPARα)/transcription factor EB (TFEB) pathway. MethodsFirst, transgenic AD C. elegans individuals were assigned into the blank control, model, positive control (WY14643, 20 µmol·L-1), and low-, medium-, and high-dose (100, 200, and 400 mg·L-1, respectively) DA groups. The amyloid β-42 (Aβ42) formation in the muscle cells, the paralysis time, and the deposition of amyloid β-protein (Aβ) in the head were detected. The lysosomal autophagy in the BV2 cell model was examined by Rluc-LC3wt/G120A. The expression levels of lysosomal autophagy-related proteins LC3Ⅱ, LC3I, LAMP2, and TFEB were detected by Western blot. Real-time quantitative polymerase chain reaction (Real-time PCR) was employed to determine the mRNA levels of autophagy-related genes beclin1 and Atg5 and lysosome-related genes LAMP2 and CLN2 downstream of PPARα/TFEB. A reporter gene assay was used to detect the transcriptional activities of PPARα and TFEB. Immunofluorescence was used to detect the fluorescence intensity of PPARα, and the active components of the ethanol extract of DA were identified by UPLC-MS. RCSB PDB, Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), and Autodock were used to analyze the binding between the active components and PPARα-ligand-binding domain (LBD). ResultsCompared with the model group, the positive control group and 200 and 400 mg·L-1 DA groups showed prolonged paralysis time (P<0.05), and all the treatment groups showed decreased Aβ deposition in the head (P<0.01). DA within the concentration range of 50-500 mg·L-1 did not affect the viability of BV2 cells. In addition, DA enhanced the autophagy flux (P<0.05), up-regulated the mRNA levels of beclin1, Atg5, LAMP2, and CLN2 (P<0.05, P<0.01), promoted the nuclear translocation of TFEB (P<0.05), increased LAMP2 expression and autophagy flux (P<0.05, P<0.01), and enhanced the transcriptional activities of PPARα and TFEB (P<0.01). The positive control group and 200 and 400 mg·L-1 DA groups showed enhanced fluorescence intensity of PPARα in the BV2 nucleus (P<0.01). UPLC-MS detected nine known compounds of DA, from which 8 active components of DA were screened out. The docking results suggested that a variety of components in DA could bind to PPARα-LBD and form stable hydrogen bonds. ConclusionDA may reduce the pathological changes in AD by regulating the PPARα-TFEB pathway.
4.Analysis of Dynamic Change Patterns of Color and Composition During Fermentation of Myristicae Semen Koji
Zhenxing WANG ; Mengmeng FAN ; Le NIU ; Suqin CAO ; Hongwei LI ; Zhenling ZHANG ; Hanwei LI ; Jianguang ZHU ; Kai LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):222-229
ObjectiveTo explore the changes in volatile components, total polysaccharides, enzyme activity, and chromaticity value of Myristicae Semen Koji(MSK) during the fermentation process, and conduct correlation analysis. MethodsBased on gas chromatography-mass spectrometry(GC-MS), the changes of volatile components in MSK at different fermentation times were identified. The phenol sulfuric acid method, dinitrosalicylic acid method(DNS), and carboxymethyl cellulose sodium salt method(CMC-Na) were used to investigate the total polysaccharide content, amylase activity, and cellulase activity during the fermentation process. Visual analysis technology was used to explore the changes in chromaticity values, revealing the fermentation process of MSK and the dynamic changes of various measurement indicators, partial least squares-discriminant analysis(PLS-DA) was used to explore the differential compounds of MSK at different fermentation degrees, and Pearson correlation analysis was used to explore the correlation between volatile components of MSK and total polysaccharides, enzyme activity, and chromaticity values. ResultsA total of 60 volatile compounds were identified from MSK, the relative contents of components such as (+)-α-pinene, β-phellandrene, β-pinene, (+)-limonene, and p-cymene obviously increased, while the relative contents of components such as safrole, methyl isoeugenol, methyleugenol, myristicin, and elemicin significantly decreased. During the fermentation process, the total polysaccharide content showed an upward trend, while the activities of amylase and cellulase showed an initial increase followed by a decrease, and reached their maximum value at 40 h. the overall brightness(L*) and total color difference(ΔE*) gradually increased, while the changes in red-green value(a*) and yellow-blue value(b*) were not obvious. PLS-DA results showed that MSK could be clearly distinguished at different fermentation times, and 13 differential biomarkers were screened out. Pearson correlation analysis results showed that the contents of α-terpinene, β-phellandrene, methyleugenol, β-cubebene and myristic acid had an obvious correlation with chromaticity values. ConclusionAfter fermentation, the volatile components, total polysaccharides, amylase activity, and cellulase activity of MSK undergo significant changes, and there is a clear correlation between them and chromaticity values, which reveals the dynamic changes in the fermentation process and related indicators of MSK, laying a foundation for the quality control.
5.The clinical value of artificial intelligence quantitative parameters in distinguishing pathological grades of stage Ⅰ invasive pulmonary adenocarcinoma
Yun LIANG ; Mengmeng REN ; Delong HUANG ; Jingyan DIAO ; Xuri MU ; Guowei ZHANG ; Shuliang LIU ; Xiuqu FEI ; Dongmei DI ; Ning XIE
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(05):598-607
Objective To explore the clinical value of artificial intelligence (AI) quantitative parameters in distinguishing pathological grades of stageⅠ invasive adenocarcinoma (IAC). Methods Clinical data of patients with clinical stageⅠ IAC admitted to Yantaishan Hospital Affiliated to Binzhou Medical University from October 2018 to May 2023 were retrospectively analyzed. Based on the 2021 WHO pathological grading criteria for lung adenocarcinoma, IAC was divided into gradeⅠ, grade Ⅱ, and grade Ⅲ. The differences in parameters among the groups were compared, and logistic regression analysis was used to evaluate the predictive efficacy of AI quantitative parameters for grade Ⅲ IAC patients. Parameters were screened using least absolute shrinkage and selection operator (LASSO) regression analysis. Three machine learning models were constructed based on these parameters to predict grade Ⅲ IAC and were internally validated to assess their efficacy. Nomograms were used for visualization. Results A total of 261 IAC patients were included, including 101 males and 160 females, with an average age of 27-88 (61.96±9.17) years. Six patients had dual primary lesions, and different lesions from the same patient were analyzed as independent samples. There were 48 patients of gradeⅠ IAC, 89 patients of grade Ⅱ IAC, and 130 patients of grade Ⅲ IAC. There were statitical differences in the AI quantitive parameters such as consolidation/tumor ratio (CTR), ect among the three goups. (P<0.05). Univariate analysis showed that the differences in all variables except age were statistically significant (P<0.05) between the group gradeⅠ+grade Ⅱand the group grade Ⅲ . Multivariate analysis suggested that CTR and CT standard deviation were independent risk factors for identifying grade Ⅲ IAC, and the two were negatively correlated. Grade Ⅲ IAC exhibited advanced TNM staging, more pathological high-risk factors, higher lymph node metastasis rate, and higher proportion of advanced structure. CTR was positively correlated with the proportion of advanced structures in all patients. This correlation was also observed in grade Ⅲ but not in gradeⅠand grade ⅡIAC. CTR and CT median value were selected by using LASSO regression. Logistic regression, random forest, and XGBoost models were constructed and validated, among which, the XGBoost model demonstrated the best predictive performance. Conclusion Cautious consideration should be given to grade Ⅲ IAC when CTR is higher than 39.48% and CT standard deviation is less than 122.75 HU. The XGBoost model based on combined CTR and CT median value has good predictive efficacy for grade Ⅲ IAC, aiding clinicians in making personalized clinical decisions.
6.Investigation on the gross α and gross β activity levels of drinking water around Zhangzhou Nuclear Power Plant
Mengmeng LIU ; Jianxi ZHA ; Jia LIU ; Qishan ZHENG ; Senxing ZHENG ; Dan LIN ; Yunhua QING ; Yan ZHANG ; Jianbo CHEN ; Lihua HUANG
Chinese Journal of Radiological Health 2025;34(5):648-653
Objective To investigate the levels of gross α and gross β activities in different water types within a 40-kilometer radius around the Zhangzhou Nuclear Power Plant prior to its operation. Methods In 2018, drinking water samples were collected from the area surrounding the nuclear power plant during both the wet and dry seasons, including source water, treated water, tap water, and well water. The gross α and gross β activity concentrations were measured using a low-background α/β counter, followed by statistical analysis. Results A total of 80 water samples from different sources around the Zhangzhou Nuclear Power Plant were collected. The average gross α and gross β activity concentrations during the wet season were (0.110 ± 0.036) Bq/L and (0.643 ± 0.028) Bq/L, respectively, while those during the dry season were (0.124 ± 0.032) Bq/L and (0.624 ± 0.026) Bq/L, respectively. There were no significant differences in the gross α and gross β activity concentrations between the wet and dry seasons for the overall sample set (P > 0.05). However, there were statistically significant differences in the gross α and gross β activity concentrations between the wet and dry seasons for source water and well water (Zwet = −2.005, −2.123; Zdry = −1.943, −3.090; P < 0.05). Conclusion The radioactivity levels in different water types within various ranges around the Zhangzhou Nuclear Power Plant before its operation were determined. The measured activity concentrations were at the same level as those from previous investigations in other regions of Fujian Province.
7.Ancient and Modern Literature Analysis and Key Information Research of Classic Formula Qingfeitang
Lyuyuan LIANG ; Jinyan ZHANG ; Jialei CAO ; Jing TANG ; Mengmeng GENG ; Yiqing ZHAO ; Hejia WAN ; Yiping WANG ; Bingqi WEI ; Bingxiang MA ; Wenli SHI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):179-189
Qingfeitang, specialized in resolving phlegm to stop cough and producing fluid to moisten dryness, is a classic prescription inherited and developed by physicians of successive generations and has been included in the Catalogue of Ancient Classic Prescriptions (First Batch) published by the National Administration of Traditional Chinese Medicine (TCM) in 2018. Relevant ancient books data and modern literature were collected by bibliometrics to analyze the historic origin, formula composition, herb origin, preparation methods, processing methods, clinical effect, and indications of Qingfeitang. The key information of Qingfeitang was summarized to provide reference for the clinical application of the decoction. In this study, a total of 43 pieces of effective data on relevant ancient literature, including 35 ancient TCM books, were collected based on a systematic collation of relevant historic and modern literature. Results showed that "Qingfeitang" was originated from the "Renshen Qingfeitang" recorded in the Taiping Holy Prescriptions for Universal Relief from the Qing dynasty. The name of "Qinfeitang" was first recorded in the Yeshi Luyanfang written by YE Dalian in the Song dynasty. We suggested the modern dosage and usage of Qingfeitang as follows: "Scutellariae Radix of 5.60 g, Platycodon grandiflora, Poria, Tangerine, Fritillaria, and Cortex Mori of 3.73 g respectively, Angelicae Sinensis Radix, Asparagi Radix, Gardeniae Fructus, Armeniacae Semen Amarum, and Ophiopogonis Radix of 2.61 g respectively, Schisandra of 1 g, and Glycyrrhizae Radix et Rhizoma of 1.12 g, and they were taken 3 times daily. The above formula is recommended to be decocted with 400 mL of water, with 3.37 g ginger and 6 g jujubae fructus, to 320 mL, and taken after a meal, three times per day". Qingfeitang has the effect of resolving phlegm to stop cough and producing fluid to moisten dryness, specialized in treating cough, asthma, rash, and other symptoms in ancient times. Modern applications are mainly focused on the respiratory system, used for treating diseases such as bronchopneumonia and cough. The above research results provide a reference basis for the later development and research of Qingfeitang.
8.Clinical Efficacy Evaluation of Tanreqing Injection Combined with Ceftazidime in Treatment of Phlegm Heat Obstructing Lung Syndrome in Acute Exacerbation of Chronic Obstructive Pulmonary Disease
Mengmeng ZHANG ; Qiao LI ; Qingyong XIONG ; Jiayao LI ; Linna XIE ; Jiasheng LU ; Zegeng LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(1):170-175
ObjectiveTo explore the effect of Tanreqing injection combined with Ceftazide on the clinical efficacy, lung function, and laboratory inflammatory index of patients suffering from phlegm heat obstructing lung syndrome in acute exacerbation of chronic obstructive pulmonary disease (AECOPD). MethodFrom June 2021 to June 2023, 76 patients diagnosed with phlegm heat obstructing lung syndrome in AECOPD were enrolled in the respiratory and critical medical department of Jieshou Hospital of Traditional Chinese Medicine. They were randomly divided into a control group and an observation group with 38 cases each. The control group used Ceftazidime intravenous drip and other conventional oxygen inhalation and antispasmodic treatment measures of western medicine. The observation group received Tanreqing injection intravenous drip based on the treatment of the control group, with a course of 10 days. The changes of laboratory indicators such as hs-CRP, calcitonin (PCT), and interleukin-6 (IL-6) before and after treatment were analyzed, and the improvement of forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), one second rate (FEV1/FVC), assessment and improvement of the British Medical Research Society’s dyspnea index (mMRC), self-evaluation test of chronic obstructive pulmonary disease patients (CAT), and traditional Chinese medicine syndrome score was compared. In addition, the total effective rate between the two groups after treatment was compared. ResultAfter treatment, the hs-CRP, PCT, IL-6, FEV1, FVC, FEV1/FVC, mMRC, CAT scores, and traditional Chinese medicine syndrome evaluation of both groups improved (P<0.01). After treatment, compared with the control group, the observation group showed more significant improvements in hs-CRP, PCT, IL-6, FEV1, FVC, FEV1/FVC, mMRC, CAT scores, and traditional Chinese medicine syndrome evaluation, and the difference was statistically significant (P<0.05,P<0.01). The total clinical effective rate of the control group was 86.84% (33/38), while that of the observation group was 94.74% (36/38). The therapeutic effect of the observation group was better than that of the control group (χ2=8.471, P<0.05). ConclusionTanreqing injection combined with Ceftazidime has obvious efficacy in the treatment of phlegm heat obstructing lung syndrome in AECOPD, which is better than the treatment of Ceftazidime antibiotics alone. It can reduce the risk of acute exacerbation, alleviate clinical symptoms, and delay the decline of lung function.
9.Mechanism of Yishen Tongluo Prescription in Inhibiting Endoplasmic Reticulum Stress and Improving Apoptosis of Renal Tubular Epithelial Cells Based on PERK/ATF4/CHOP
Xuan SU ; Liang ZHAO ; Mengmeng WANG ; Jing DING ; Zhenqiang ZHANG ; Xiaowei ZHANG ; Jiangyan XU ; Zhishen XIE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):26-36
ObjectiveTo investigate the effect of Yishen Tongluo prescription (YSTLP) on apoptosis of renal tubular epithelial cells and explore the mechanism based on endoplasmic reticulum stress pathway of protein kinase R-like endoplasmic reticulum kinase (PERK)/activating transcription factor 4 (ATF4)/transcription factor C/EBP homologous protein (CHOP). MethodThe db/db mice were randomly divided into model group, valsartan group (10 mg·kg-1), and low, middle, high-dose YSTLP groups (1, 2.5, 5 g·kg-1). Samples were collected after eight weeks of drug intervention. In addition, db/m mice in the same litter served as the control group. Human renal tubular epithelial cells (HK-2) were cultured in vitro and divided into the control group, advanced glycated end-product (AGE) group, and AGE + low, middle, and high-dose YSTLP groups (100, 200, 400 mg·L-1). TdT-mediated dUTP nick end labeling (TUNEL) staining was used to detect the apoptosis rate of HK-2 cells. Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay was conducted to detect the viability of HK-2 cells. Calcium fluorescence probe staining and luciferase reporter gene method were adopted to detect the luciferase activity of folded protein response element (UPRE) and endoplasmic reticulum stress. Immunohistochemical (IHC) analysis was carried out to measure the protein expressions of phosphorylated PKR (p-PERK), CHOP, and ATF4. Real-time polymerase chain reaction (Real-time PCR) was used to measure the mRNA expression levels of CHOP and X-box binding protein 1 (XBP1) in mouse kidney and HK-2 cells. Western blot was used to detect the protein expression level of p-PERK, PERK, CHOP, ATF4, B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), and cleaved Caspase-3 in mouse kidney and HK-2 cells. ResultIn the cellular assay, HK-2 cell viability was significantly reduced, and the apoptosis rate was elevated in the AGE group compared with the control group (P<0.01). The mRNA and protein expression levels of apoptosis-related factor Bcl-2 were significantly reduced (P<0.01), and those of Bax were significantly increased (P<0.01). The protein expression level of cleaved Caspase-3 was significantly increased (P<0.01). Compared with the AGE group, YSTLP administration treatment resulted in elevated cell viability and reduced apoptosis rate (P<0.01). The mRNA and protein expression levels of Bcl-2 were significantly elevated in a time- and dose-dependent manner (P<0.01), and those of Bax were significantly reduced in a time- and dose-dependent manner. The protein expression level of cleaved Caspase-3 was significantly reduced in a time- and dose-dependent manner (P<0.01). The intracellular Ca2+ imbalance and UPRE luciferase fluorescence intensity were increased in the AGE group compared with the control group (P<0.01). The mRNA levels of endoplasmic reticulum stress-related factors CHOP and XBP1 were significantly increased (P<0.01), and the protein expression levels of p-PERK, CHOP, and ATF4 were significantly increased (P<0.05). Compared with the AGE group, YSTLP effectively improved intracellular Ca2+ imbalance in HK-2 cells and decreased UPRE luciferase fluorescence intensity in a dose-dependent manner (P<0.01). It reduced the mRNA levels of endoplasmic reticulum stress-related factors CHOP and XBP1 (P<0.01) and the protein expression levels of intracellular p-PERK, CHOP, and ATF4 in a dose- and time-dependent manner (P<0.01). In animal experiments, the protein expression level of Bcl-2 was significantly reduced(P<0.01), and that of cleaved Caspase-3 and Bax was significantly increased in the model group compared with the control group (P<0.05). The protein expression level of Bcl-2 was dose-dependently elevated, and that of cleaved Caspase-3 and Bax was dose-dependently decreased in the YSTLP groups compared with the model group (P<0.01). Compared with the control group, the mRNA expression levels of CHOP and XBP1 were significantly elevated in the model group (P<0.05, P<0.01), and the protein expression levels of p-PERK, CHOP, and ATF4 were significantly increased (P<0.05). Compared with the model group, YSTLP significantly decreased the mRNA expression levels of CHOP and XBP1 (P<0.01) and the protein expression levels of p-PERK, CHOP, and ATF4 (P<0.01). ConclusionYSTLP can effectively inhibit endoplasmic reticulum stress and improve apoptosis of renal tubular epithelial cells, and its mechanism may be related to the regulation of the PERK/AFT4/CHOP pathway.
10.Repair effect of ephedrine on lipopolysaccharide-induced microglia function injury and its mechanism
Tao YIN ; Lizhen JIANG ; Mengmeng ZHANG ; Ruijian WANG ; Wenchao ZHANG
China Pharmacy 2024;35(1):33-37
OBJECTIVE To study the repair effect of ephedrine on lipopolysaccharide (LPS)-induced microglia function injury and its mechanism. METHODS Human microglia cells (HMC3) were used as research objects to investigate the effects of different concentrations of ephedrine (75, 150, 300, 600 μg/mL) on the viability and apoptosis of HMC3 cells. HMC3 cells were divided into control group (without drug intervention), LPS group (1 μg/mL), ephedrine group (1 μg/mL LPS+300 μg/mL ephedrine), BAY11-7082 group [1 μg/mL LPS+5 μmol/L nuclear factor-κB (NF-κB) pathway inhibitor BAY11-7082], inhibitor group (1 μg/mL LPS+300 μg/mL ephedrine+5 μmol/L BAY11-7082) and activator group (1 μg/mL LPS+300 μg/mL ephedrine+1 μmol/L NF-κB pathway activator Prostratin). After 24 hours of drug treatment, cell migration, the levels of soluble interleukin-6(sIL-6), interleukin-10(IL-10), superoxide dismutase(SOD)and malondialdehyde(MDA), and the expressions of NF-κB pathway-related proteins were all detected. RESULTS The viability of HMC3 cells could be increased significantly by 300 μg/mL ephedrine, while the apoptotic rate was decreased significantly (P<0.05). Compared with the control group, the number of migrating cells was increased significantly in the LPS group; the levels of sIL-6 and MDA, the phosphorylation of NF-κB protein were increased significantly, while the levels of IL-10 and SOD were decreased significantly (P<0.05). Compared with the LPS group, the above indexes were reversed significantly in the ephedrine group and BAY11-7082 group (P<0.05). Compared with the ephedrine group, the number of migrating cells was decreased significantly in the inhibitor group; the levels of sIL-6 and MDA, the phosphorylation of NF-κB protein were decreased significantly, while the levels of IL-10 and SOD were increased significantly (P<0.05). The above indexes were reversed significantly in the activator group (P<0.05)can repair cell injury by inhibiting LPS induced apoptosis, migration, inflammation and oxidant stress of HMC3 cells, the mechanism of which may be associated with inhibiting the activity of the NF-κB signaling pathway.

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