1.Effect of Berberine-Baicalin Combination on Fecal Microbiota Transplantation-induced Type 2 Diabetes Mellitus Due to Internal Accumulation of Dampness-heat in Mice from Perspectives of Gut Microbiota and Metabolomics
Mengjie CHEN ; Yimin LIU ; Yun ZHOU ; Keming YU ; Min XIA ; Hongning LIU ; Yanhua JI ; Zhijun ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):52-64
ObjectiveTo investigate the mechanisms by which the combination of berberine (BBR) and baicalin (BAI) ameliorates type 2 diabetes mellitus (T2DM) due to internal accumulation of dampness-heat from the perspectives of gut microbiota and metabolomics. MethodsAntibiotics were used to induce pseudo-sterile mice. Thirty pseudo-sterile mice were randomized into a normal fecal microbiota transplantation group (n=10) and a T2DM (syndrome of internal accumulation of dampness-heat) fecal microbiota transplantation group (n=20). The mice were then administrated with suspensions of fecal microbiota from healthy volunteers and a patient with T2DM due to internal accumulation of dampness-heat by gavage, respectively. Each mouse received 200 µL suspension every other day for a total of 15 times to reshape the gut microbiota. The T2DM model mice were then assigned into a model group (n=8) and a BBR-BAI group (n=11). BBR was administrated at a dose of 200 mg·kg-1, and BAI was administrated in a ratio of BBR-BAI 10∶1 based on preliminary research findings. The administration lasted for 8 consecutive weeks. Fasting blood glucose (FBG), glycated hemoglobin (HbA1c), insulin (INS), triglycerides (TG), total cholesterol (CHOL), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels were measured to evaluate the effects of the BBR-BAI combination on glucose and lipid metabolism and liver function in T2DM mice. Hematoxylin-eosin staining was employed to observe pathological changes in the colon tissue. The expression of claudin-1, zonula occludens-1 (ZO-1), and occludin in the colon tissue was determined by Western blot. Real-time quantitative polymerase chain reaction(Real-time PCR) was employed to assess the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) in the colon tissue. The fecal microbiota composition and differential metabolites were analyzed by 16S rRNA sequencing and ultra-high performance liquid chromatography-quadrupole-time of flight tandem mass spectrometry (UPLC-Q-TOF-MS), respectively. ResultsThe BBR-BAI combination lowered the FBG, HbA1c, and INS levels (P<0.05, P<0.01) and alleviated insulin resistance (P<0.01) in T2DM mice. Additionally, BBR-BAI elevated the levels of ZO-1, occludin, and claudin-1 (P<0.05, P<0.01) and down-regulated the expression levels of TNF-α, IL-1β, and IL-6 in the colon (P<0.05, P<0.01). The results of 16S rRNA sequencing showed that BBR-BAI increased the relative abundance of Ligilactobacillus, Phascolarctobacterium, and Akkermansia (P<0.05), while significantly decreasing the relative abundance of Alistipes, Odoribacter, and Colidextribacter (P<0.05). UPLC-Q-TOF-MS identified 28 differential metabolites, which were primarily involved in arachidonic acid metabolism and α-linolenic acid metabolism. ConclusionBBR-BAI can ameliorate T2DM due to internal accumulation of dampness-heat by modulating the relative abundance of various bacterial genera in the gut microbiota and the expression of fecal metabolites.
2.Mechanism of Wendantang in Intervention of ApoE-/- Hyperlipidemic Mice Based on Liver Metabolomics
Yun ZHOU ; Songren YU ; Lu ZHANG ; Wenting LIN ; Keming YU ; Min XIA ; Zhijun ZENG ; Yanhua JI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):1-9
ObjectiveTo explore the mechanism of action of Wendantang on ApoE-/- hyperlipidemic mice using non-targeted metabolomics technology. MethodsMale C57BL/6J mice served as the normal control group (n=6), and they were fed with regular chow, while male ApoE-/- mice constituted the high-fat group (n=30), and they were fed with a 60% high-fat diet. After 11 weeks of model establishment, the mice in the high-fat group were randomly divided into the model group, simvastatin group (3.3 mg·kg-1), and high-dose, medium-dose, and low-dose groups of Wendantang (26, 13, 6.5 g·kg-1, respectively, in terms of crude drug amount), with six mice in each group. The normal control group and the model group were gavaged with an equivalent volume of normal saline, and all groups continued to be fed their respective diets, receiving daily medication for 10 weeks with weekly body weight measurements. Serum levels of total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), free fatty acids (NEFA), blood glucose (GLU), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) were detected in the mice. Pathological changes in liver tissue were observed using hematoxylin-eosin (HE) staining, and ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) was employed for metabolomic analysis of mouse liver tissue. ResultsCompared to the normal control group, the model group exhibited significantly increased body weight, blood lipid levels, and liver function (P<0.05, P<0.01), with disordered liver tissue structure, swollen hepatocytes, and accompanying vacuolar fatty degeneration and inflammatory cell infiltration. Compared to the model group, the simvastatin group and Wendantang groups showed significantly reduced body weight, TG, NEFA, GLU, ALT, and AST levels (P<0.05, P<0.01), with a significant increase in HDL-C levels (P<0.05, P<0.01), demonstrating a dose-dependent effect. The lesion of the liver tissue section was obviously improved after administration, tending towards a normal liver tissue morphology. Analysis of liver metabolites revealed 86 differential metabolites between the normal control group and the model group, with the high-dose group of Wendantang able to regulate 56 of these metabolites. Twenty-two differential metabolites associated with hyperlipidemia were identified, mainly including chenodeoxycholic acid, hyocholic acid, taurine, glycocholic acid, dihydroceramide, hydroxy sphingomyelin C14∶1, arachidonic acid, and linoleic acid, enriching 22 metabolic pathways, with 4 being the most significant (P<0.05), namely primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways. ConclusionWendantang can improve blood lipid levels and liver function in ApoE-/- hyperlipidemic mice, which may be related to the regulation of primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways.
3.Investigation of Effect of Different Drying Conditions on Appearance Characteristics and Internal Indicators of Pinelliae Rhizoma Based on Standardization
Suqing LIU ; Xueli ZHANG ; Jing ZHANG ; Cong YANG ; Changfu YANG ; Jun YU ; Bingpeng ZHENG ; Huiwu LI ; Yanhua JIANG ; Chang LIN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(16):208-215
ObjectiveTo explore the effect of different drying conditions on the appearance and intrinsic quality indicators of Pinelliae Rhizoma for screening suitable drying conditions, so as to provide reference for its standardized production and quality evaluation. MethodsDifferent dried samples of Pinelliae Rhizoma were prepared by lime-assisted sweating method and intermittent drying method. Visual analysis was employed to measure the color brightness values(L*) of the surface, cross-section and powder of the samples, texture analyzer was used to determine the hardness of the samples under different drying conditions. The total starch content was calculated by measuring the contents of amylose and amylopectin in the samples with ultraviolet-visible spectroscopy. High performance liquid chromatography(HPLC) was used to determine the contents of seven nucleoside components(uracil, hypoxanthine, uridine, inosine, guanosine, β-thymidine and adenosine) in the samples. Pearson correlation analysis was conducted to explore the correlation between the external characteristics and intrinsic indicators of the different dried samples. Principal component analysis(PCA) was used to comprehensively rank the data of various indicators, and partial least squares-discriminant analysis(PLS-DA) was used to screen differential components with variable importance in the projection(VIP) value>1. Furthermore, the difference between the optimal drying condition for Pinelliae Rhizoma and the traditional sun-drying method was explored by independent samples t-test. ResultsWith the increase of temperature, the color of the intermittently dried samples gradually deepened, while their hardness gradually decreased. Concurrently, the contents of extract, total starch, uridine and adenosine exhibited an upward trend, whereas the contents of uracil, hypoxanthine and inosine displayed a downward trajectory. Compared with the intermittent drying group, the content of extract in the samples subjected to lime-assisted sweating increased. With the increase of lime dose, the hardness and the total content of nucleoside components in the samples showed a downward trend, while the total starch content showed an upward trend. Correlation analysis showed that the comprehensive score of L* was negatively correlated with the contents of uracil, hypoxanthine and inosine, and positively correlated with the contents of uridine, guanosine and adenosine. Hardness was negatively correlated with adenosine content, and positively correlated with the contents of inosine, uracil and hypoxanthine. Through comprehensive consideration and comprehensive score of principal components, the method of 5% lime-mixed sweating for 6 days emerged as the top-ranking approach. Except for the extract, the results of independent samples t-test showed that there was no significant difference between the 5% lime-mixed sweating for 6 days and the traditional sun-drying in terms of other content indicators. ConclusionThe whiteness and firmness of Pinelliae Rhizoma exhibit significant correlations with its chemical composition, while uridine, uracil, guanosine, adenosine and inosine are the key constituents responsible for the quality difference of Pinelliae Rhizoma under different drying conditions. The lime-assisted sweating method optimized in this study can be proposed as a viable alternative to the traditional sun-drying method. This method not only ensures the quality of the medicinal material but also effectively reduces the drying time and prevents mold contamination, which provides a valuable reference for the standardization of drying conditions and the establishment of quality evaluation criteria for Pinelliae Rhizoma.
4.The application of family empowerment model on the primary caregivers of first-episode stroke dysphagia patients
Hong YU ; Jing DU ; Qian XU ; Mingming XU ; Xiangge FAN ; Fan ZHANG ; Xueyun WENG ; Xiaoming MA ; Yanhua HOU ; Linqing LI
Chinese Journal of Practical Nursing 2024;40(4):263-271
Objective:To explore the effect of family empowerment model on the improvement of swallowing care ability and care preparedness of primary caregivers of first-episode stroke dysphagia patients, further to explore its impact on patients′s wallowing function and life quality.Methods:This study was a randomized controlled study. From January 2021 to December 2022, 80 main caregivers of patients with dysphagia caused by manual stroke admitted to the Department of Acupuncture and Moxibustion, Shenzhen Hospital of Traditional Chinese Medicine were selected as the research objects, and 40 cases in the control group and 40 cases in the observation group were selected by random number table method. The control group were treated with conventional nursing care of first-episode stroke dysphagia patients in the acupuncture and moxibustion Department. On the basis of the conventional care in the control group, the observation group were treated with family empowerment model intervention for 14 days and was followed up for 28 days. Primary caregivers′ swallowing care ability, Caregiver Preparedness Scale (CPS), patients′ swallowing function rate, Swallowing Related Quality of Life (SWALQOL) were used to evaluate the effects before intervention and at the end of intervention.Results:There were 18 males and 19 females primary caregivers in the control group, aged (55.61 ± 7.43) years old. There were 18 males and 21 females primary caregivers in the observation group, aged (58.23 ± 8.22) years old. The swallowing care ability score showed a statistically significant difference between the observation group (143.47 ± 3.96) and the control group (107.74 ± 1.43) ( t=-26.76, P<0.05). After intervention, the caregiver preparedness scale was (26.11 ± 3.81) in the observation group, and (18.35 ± 4.54) in the control group, and the difference was statistically significant ( t=-4.11, P<0.05).The patients′ swallowing function rate and SWALQOL score were respectively 97.44% (38/39) and (91.41 ± 8.08) points in the observation group, and 72.97% (27/37) and (80.33 ± 4.21) points in the control group, and the difference was both statistically significant ( χ2=10.76, t=-2.54, both P<0.05). Conclusions:The implementation of family empowerment model could enhance the swallowing care ability and care preparedness of primary caregivers of the first-episode stroke dysphagia patients, which could further improve patients′ swallowing function and life quality.
5.Mdivi-1 protects oligodendrocytes through inhibiting apoptotic signaling pathway
Yanhua LI ; Xiaojuan ZHANG ; Siyu ZHANG ; Xiyuan HOU ; Ziyi LIU ; Xiao-Jing YU ; Nianping ZHANG
Chinese Journal of Pathophysiology 2024;40(3):527-534
AIM:To investigate the therapeutic effect of mitochondrial fission inhibitor-1(Mdivi-1)on experi-mental autoimmune encephalomyelitis(EAE)in mice,and to explore its mechanism.METHODS:The mice immunized with myelin oligodendrocyte glycoprotein peptide fragment 35-55(MOG35-55)were randomly divided into DMSO model group and Mdivi-1 intervention group.All mice were sacrificed on the 28th day after the first immunization.The demyelination was analyzed by Luxol fast blue staining.The protective mechanism of Mdivi-1 in the spinal cord tissue was investigated by immunofluorescence staining,TUNEL staining and the in vitro experiment with MO3.13 oligodendrocytes treated with staurosporine.The mitochondrial depolarization was detected by JC-1 staining,the cell injury was checked by LDH leakage,and the viability of MO3.13 oligodendrocytes was determined by MTT assay.RESULTS:Compared with DMSO model group,the demyelinating injury was alleviated and the proportion of apoptotic CC1+ oligodendrocytes in Mdivi-1 group was decreased.The cleaved caspase-3,caspase-9,cytochrome C and Bax protein expression levels in the spinal cord of Mdivi-1-treated mice was also attenuated.The in vitro MO3.13 cell experiments suggested that Mdivi-1 inhibited MO3.13 cell mitochondrial depolarization,attenuated the cell damage and increased the cell viability.CONCLUSION:Mdivi-1 pro-tects against the myelin injury in EAE mice,which may be related to the suppression of oligodendrocyte apoptosis.
6.Anxiety and depression in primary and middle school students quarantined in hotels during the COVID-19 epidemic
Min CHEN ; Lu TONG ; Guohua LI ; Yanhua YU ; Lihui GAO ; Yunhe ZHANG ; Zhanzhou YU ; Yanyan CHEN ; Xiaojie SUI ; Yinxia BAI
Chinese Mental Health Journal 2024;38(3):260-264
Objective:To investigate symptoms of anxiety and depression among primary and middle school students quarantined in hotels during the COVID-19 epidemic.Methods:Anxiety and depression symptoms among 726 primary and middle school students quarantined in hotels were investigated with The Screen for Child Anxiety Related Emotional Disorders(SCARED)and Depression Self-rating Scale for Children(DSRSC)from September to October 2022 in Chifeng City,Inner Mongolia Autonomous Region.There were 624 students completed investi-gation with response rate of 86%.The positive score of SCARED was ≥23 and DSRSC was ≥ 15.Results:The detection rates of anxiety and depression were 17.9%and 15.4%respectively.The detection rates of anxiety and depression were higherin middle school students than inprimary school students(Ps<0.05).The scores of general-ized anxiety and social phobia factors were higher in female students than in male students(Ps<0.05).The scores of dissociative anxiety factor and depression were higher in middle school students than in primary school students(Ps<0.05).Conclusion:During the COVID-19 epidemic,middle school students quarantined in hotels are more likely to have anxiety and depression symptoms than primary school students,and female students are more likely to have anxiety symptoms than male students.
7.Clinical features and initial outcomes in elderly patients with idiopathic membranous nephropathy
Jinxiu LIANG ; Fangxiao XIA ; Wenke HAO ; Wenxue HU ; Yanhua WU ; Feng YU ; Zhi ZHAO ; Wei LIU
Chinese Journal of Geriatrics 2024;43(2):168-174
Objective:The purpose of this study was to examine the clinical features and initial treatment outcomes of elderly individuals with idiopathic membranous nephropathy.Methods:This study retrospectively analyzed the clinical characteristics and therapeutic effect of hospitalized patients aged 60 years or older with renal-biopsy-proven idiopathic membranous nephropathy for at least one year.Results:This study enrolled a total of 91 elderly patients with IMN, consisting of 51 males(56.0%)and 40 females(44.0%). The median age of the patients was 67 years.The urinary protein creatinine ratio(uPCR)and urinary albumin creatinine ratio(uACR)of the patients were 4 454.3 mg/g and 2 258.5 mg/g, respectively.The median 24-hour urinary protein and urinary albumin levels were 5 098.2 mg/24 h and 2 800.6 mg/24 h, respectively.The average estimated glomerular filtration rate(eGFR)was(60.5±20.4)ml·min -1·1.73 m -2.Out of the total of 61 patients, 67.0% achieved remission, including complete and partial remission, within a year of renal biopsy.The levels of uPCR and uACR were significantly higher in the non-remission group compared to the remission group(5 462.5 vs.2 271.1 mg/g, P<0.001; 2 774.4 vs.1 320.0 mg/g, P=0.001). Additionally, the levels of 24h urinary protein and urinary albumin were significantly higher in the non-remission group compared to the remission group(6 526.4 vs.3 210.4 mg/g, P=0.002; 3 067.7 vs.2 102.4 mg/g, P=0.007). The remission group had a higher proportion of patients receiving immunosuppressive therapy(85.2% vs.33.3%, P<0.001). The remission rates were higher in patients treated with glucocorticoid combined with cyclophosphamide, glucocorticoid combined with calcineurin inhibitors, or glucocorticoid combined with mycophenolate mofetil compared to those receiving conservative treatment(88.2% vs.31.0%, P=0.001; 80.0% vs.31.0%, P<0.001; 100.0% vs.31.0%, P=0.007). There was no significant difference in remission rate between the three immunosuppressive therapy groups( P>0.05). However, upon further analysis, it was found that the levels of uPCR, uACR, and serum cystatin C(CysC)were higher in the immunosuppressive therapy groups compared to conservative treatment.Additionally, serum total protein and albumin were lower in the immunosuppressive therapy groups, and these differences were statistically significant( P<0.05). Conclusions:The majority of elderly patients diagnosed with IMN have multiple comorbidities.For those at high risk with elevated urinary protein levels, early initiation of immunosuppressive therapy may lead to a higher initial urinary protein remission rate.Therefore, it is advisable to develop individualized treatment plans for elderly patients with IMN based on their clinical characteristics, as well as the risks and benefits associated with immunosuppressive therapy.
8.Effects of Yiqi tongmai formula on atherosclerosis in ApoE-/- mice and its mechanism
Quanna REN ; Yuhan CHEN ; Kun WANG ; Ming MA ; Yanhua YANG ; Yu ZHANG ; Xu ZHAO
China Pharmacy 2024;35(18):2232-2237
OBJECTIVE To investigate the effects of Yiqi tongmai formula on atherosclerosis (AS) in ApoE-/- mice and its mechanism. METHODS Forty ApoE-/- mice were randomly divided into model group, positive control group [atorvastatin calcium, 2.6 mg/(kg·d)], and low-dose, medium-dose and high-dose groups of Yiqi tongmai formula [0.46, 0.91, 1.82 g/(kg·d), by raw material], with 8 mice in each group. Eight C57BL/6J mice were selected as the normal group. Except for the normal group, the other groups were given a high-lipid diet and relevant drug or normal saline intragastrically, once a day, for 12 consecutive weeks. After the last medication, the serum levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) as well as the contents of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and monocyte chemoattractant protein-1 (MCP-1) were measured in mice. The proportion of aortic plaque area in each group of mice was detected and calculated, and the pathological morphological changes of the aortic sinus were observed; the protein phosphorylation levels of aortic phosphoinositide 3-kinase (PI3K), protein kinase B (aka Akt) and mammalian target of rapamycin (mTOR) were examined. RESULTS Compared with the model group, the serum levels of TC, TG and LDL-C and the contents of TNF-α, IL-1β and MCP-1 (including low-dose group) were decreased significantly in medium-dose and high-dose groups of Yiqi tongmai formula, while the content of HDL-C in high-dose group was increased significantly (P<0.05 or P<0.01); aortic plaques of the mice were reduced in Yiqi tongmai formula groups to different extents, and pathological changes such as lipid deposition and inflammatory cell infiltration were relieved to different extents; the proportion of aortic plaque area, the protein phosphorylation levels of PI3K, Akt and mTOR in aortic tissue were significantly reduced in medium-dose and high-dose groups of Yiqi tongmai formula (P<0.05 or P<0.01). CONCLUSIONS Yiqi tongmai formula can improve lipid metabolism, reduce inflammatory response, and delay plaque development in AS mice. Its effect may be related to the inhibition of PI3K/Akt/mTOR signaling pathway activation.
9.Stewed Polygoni Multiflori Radix Treats Androgenic Alopecia in Mice by Activating Wnt/β-catenin Signaling Pathway
Fuzhu PAN ; Mingxia CHEN ; Bin YI ; Yanhua XUE ; Qiuping YU ; Fayun WU ; Enhui JI ; Hongwei WU ; Jing XU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):246-253
ObjectiveTo evaluate the therapeutic effect of stewed Polygoni Multiflori Radix on androgenic alopecia (AGA) and study the treatment mechanism. MethodNinety-nine SPF-grade male C57BL/6J mice were randomized into control, model, positive drug (finasteride, 0.65 mg·kg-1), low (0.78 g·kg-1), medium (1.56 g·kg-1), and high (3.12 g·kg-1)-dose stewed Polygoni Multiflori Radix, and Polygoni Multiflori Radix Praeparata groups by the random number table method. The mouse model of AGA was constructed by subcutaneous multi-point injection of testosterone propionate diluent for 60 days, and the mice were administrated with corresponding drugs by gavage from day 11. The therapeutic effects of stewed Polygoni Multiflori Radix and Polygoni Multiflori Radix Praeparata on AGA were evaluated by newly hair area, hair length, hair weight in the hair removal area, and hematoxylin-eosin staining. Enzyme-linked immunosorbent assay was employed to determine the levels of testosterone (T), dihydrotestosterone (DHT), and 5α-reductase (5-AR) in the skin tissue of mice. Western blot was employed to determine the expression levels of key proteins in the Wnt/β-catenin signaling pathway. ResultCompared with the control group, the model group (after 60 days of modeling) showed reductions in the newly hair area, hair length and weight in the back hair removal area, and ratio of hair follicles containing melanin to total hair follicles (P<0.05, P<0.01), elevated levels of T, DHT, and 5-AR, up-regulated expression level of glycogen synthase kinase-3β (GSK-3β) (P<0.05, P<0.01), and down-regulated expression levels of β-catenin, phospho-glycogen synthase kinase-3β (p-GSK-3β), and p-GSK-3β/GSK-3β (P<0.05, P<0.01) in the skin tissue. Compared with the model group, the positive drug, low-, medium-, and high-dose stewed Polygoni Multiflori Radix, and low-, medium-, and high-dose Polygoni Multiflori Radix Praeparata improved the newly hair area and hair length of mice (P<0.01), and stewed Polygoni Multiflori Radix and Polygoni Multiflori Radix Praeparata at low and medium doses improved the weight of newly formed hair in mice (P<0.05, P<0.01). The positive drug, low-, medium-, and high-dose stewed Polygoni Multiflori Radix, and low- and high-dose Polygoni Multiflori Radix Praeparata increased the ratio of hair follicles containing melanin to total hair follicles in the skin tissue (P<0.05, P<0.01). Compared with Polygoni Multiflori Radix Praeparata at the same doses, the medium and high doses of stewed Polygoni Multiflori Radix increased the ratio of melanin-containing hair follicles to total hair follicles (P<0.05). Compared with the model group, stewed Polygoni Multiflori Radix lowered the levels of T and DHT, down-regulated the expression level of GSK-3β (P<0.01), and up-regulated the expression levels of β-catenin, p-GSK-3β, and p-GSK-3β/GSK-3β (P<0.05, P<0.01) in the skin tissue of the mice. ConclusionStewed Polygoni Multiflori Radix can ameliorate androgenic alopecia in mice by reducing the androgen level and promoting Wnt/β-catenin signaling.
10.Effect of Yiqi Tongmai Formula in Intervening in Liver Inflammation and Lipidosis in ApoE-∕- Mice Based on NF-κB/NLRP3 Signaling Pathway
Yuhan CHEN ; Quanna REN ; Kun WANG ; Tingting SU ; Yanhua YANG ; Ming MA ; Yu ZHANG ; Xu ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):64-72
ObjectiveTo investigate the effect of Yiqi Tongxin formula (YQTM) on liver inflammation in apolipoprotein E-∕- (ApoE-∕-) mice by regulating the nuclear transcription factor-κB (NF-κB)/NOD-like receptor protein 3 (NLRP3) signaling pathway. MethodForty ApoE-∕- mice were randomly divided into a model group, an atorvastatin group (positive drug group), and low-, medium-, and high-dose YQTM groups (0.39, 0.78, 1.56 g·kg-1). Each drug administration group was given the corresponding concentration of the drug by gavage on the basis of high-fat feeding for 12 consecutive weeks. Eight C57BL/6J mice were used as a blank group and fed with normal chow. After 12 weeks, oil red O staining and Masson staining were used to observe the aortic lesions in mice and to determine whether the modeling was successful. Oil red O staining was used to observe the lipidosis in the livers of mice. Hematoxylin-eosin (HE) staining was used to observe the tissue lesions in the livers of mice. Masson staining was used to observe the distribution of collagen fibers in the livers of mice. Enzyme markers were used to detect the total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) in mouse serum, as well as total cholesterol (TC) and triglyceride (TG) in the liver. Interleukin-1β (IL-1β) and IL-18 were detected in mouse liver by enzyme-linked immunosorbent assay (ELISA). Immunohistochemistry (IHC) was utilized to observe the expression regions of NF-κB and NLRP3 in the livers of mice. Western blot was employed to detect the protein expression levels of NF-κB, NF-κB inhibitory protein (IκB), IκB kinase β (IKKβ), phosphorylated NF-κB (p-NF-κB), phosphorylated IκB (p-IκB), phosphorylated IKK β (p-IKKβ), NLRP3, and Caspase-1 in the livers of mice. ResultCompared with the blank group, the model group showed severe aortic lipidosis, and the intracellular fat droplets in the livers aggregated in large quantities. The cytoplasm was filled with fat vacuoles(P<0.01). The serum levels of TG, TC, LDL-C, AST, and ALT were significantly elevated in the mice(P<0.01). TG and TC levels were elevated in the liver(P<0.01). The levels of IL-1β and IL-18 in liver tissue, as well as the protein expression levels of NF-κB, IκB, IKKβ, p-NF-κB, p-IκB, p-IKKβ, NLRP3, and Caspase-1 in the liver were significantly elevated(P<0.01). Compared with the model group, the aortic arch plaques of mice in each YQTM group were attenuated, and the fat aggregation in the liver was reduced. The inflammatory cell infiltration was alleviated(P<0.05,P<0.01). The serum levels of TG, TC, LDL-C, AST, and ALT were significantly reduced(P<0.05,P<0.01). TG and TC levels in the liver were reduced. The IL-1β and IL-18 levels in liver tissue, as well as protein expression levels of NF-κB, IκB, IKKβ, p-NF-κB, p-IκB, p-IKKβ, NLRP3, and Caspase-1 in the liver were significantly reduced(P<0.05,P<0.01). ConclusionThe intervention mechanism of YQTM on liver inflammation in ApoE-∕- mice may be related to the down-regulation of the NF-κB/NLRP3 signaling pathway.

Result Analysis
Print
Save
E-mail