1.Liuwei Dihuang Wan inhibits oxidative stress in premature ovarian failure mice by regulating intestinal microbiota
Jiawen ZHONG ; Bo JIANG ; Wenyan ZHANG ; Xiaorong LI ; Ling QIN ; Ting GAO
Chinese Journal of Tissue Engineering Research 2025;29(11):2285-2293
BACKGROUND:Studies have shown that patients with premature ovarian failure have changes in the structure of intestinal flora and that imbalance of intestinal microbiota may be one of the important mechanisms in the development of premature ovarian failure. OBJECTIVE:To investigate the effect of Liuwei Dihuang Wan on oxidative stress and intestinal microbiota in premature ovarian failure mice induced by cyclophosphamide. METHODS:Forty-five female ICR mice were randomized into three groups:blank group(normal mice),model group(premature ovarian failure mice),and Liuwei Dihuang Wan group.A mouse model of premature ovarian failure was prepared by one-time intraperitoneal injection of cyclophosphamide(120 mg/kg)in the latter two groups.After successful modeling,the Liuwei Dihuang Wan group was intragastrically administered for 28 continuous days,and the other two groups were intragastrically administered with the same amount of normal saline for 28 days.Mouse body mass was recorded weekly and ovarian index was calculated.The development of mouse follicles was observed using hematoxylin-eosin staining.ELISA method was used to detect serum levels of anti-Mullerian hormone,estradiol,follicle stimulating hormone,superoxide dismutase,glutathione peroxidase,and malondialdehyde.Meanwhile,the gut microbiome of all mice was detected through 16S rDNA sequencing. RESULTS AND CONCLUSION:The mice in the model group had loose hair,decreased vigor and grip strength,almost no increase in body mass,and decreased ovarian index.Whereas,the mouse body mass and ovarian index were increased after treatment with Liuwei Dihuang Wan(P<0.05).The estrous cycle of mice in the model group was disorganized;Liuwei Dihuang Wan could restore the estrous cycle and reduce the number of atretic follicles in mice with premature ovarian failure.The serum levels of follicle stimulating hormone and malondialdehyde in the model group significantly increased(P<0.01),while the levels of estradiol,anti-Mullerian hormone,superoxide dismutase,and glutathione peroxidase significantly decreased(P<0.01).Liuwei Dihuang Wan could significantly decrease the serum levels of follicle stimulating hormone and malondialdehyde(P<0.01),and increase the levels of estradiol,anti-Mullerian hormone,superoxide dismutase,and glutathione peroxidase.According to the 16S rDNA sequencing results,Liuwei Dihuang Wan could regulate the abundance and diversity of intestinal microbiota,and increase the relative abundance of beneficial bacteria.KEGG pathway analysis showed that the intestinal microbiota and metabolic pathways,biosynthesis of secondary metabolites,microbial metabolism in different environments,and biosynthesis of amino acids were regulated by Liuwei Dihuang Wan.To conclude,the changes in the structure of intestinal microbiome may be one of the potential mechanisms of Liuwei Dihuang Wan in treating premature ovarian failure.Liuwei Dihuang Wan can regulate the structure of intestinal microbiome,increase the number of beneficial bacteria,reduce the number of harmful bacteria,and thus improve the balance of intestinal microbiota.This regulatory effect helps to reduce oxidative stress levels and further inhibit ovarian oxidative stress in mice with premature ovarian failure.
2.Study on the modeling method of general model of Yaobitong capsule intermediates quality analysis based on near infrared spectroscopy
Le-ting SI ; Xin ZHANG ; Yong-chao ZHANG ; Jiang-yan ZHANG ; Jun WANG ; Yong CHEN ; Xue-song LIU ; Yong-jiang WU
Acta Pharmaceutica Sinica 2025;60(2):471-478
The general models for intermediates quality analysis in the production process of Yaobitong capsule were established by near infrared spectroscopy (NIRS) combined with chemometrics, realizing the rapid determination of notoginsenoside R1, ginsenoside Rg1, ginsenoside Re, ginsenoside Rb1, ginsenoside Rd and moisture. The spray-dried fine powder and total mixed granule were selected as research objects. The contents of five saponins were determined by high performance liquid chromatography and the moisture content was determined by drying method. The measured contents were used as reference values. Meanwhile, NIR spectra were collected. After removing abnormal samples by Monte Carlo cross validation (MCCV), Monte Carlo uninformative variables elimination (MC-UVE) and competitive adaptive reweighted sampling (CARS) were used to select feature variables respectively. Based on the feature variables, quantitative models were established by partial least squares regression (PLSR), extreme learning machine (ELM) and ant lion optimization least squares support vector machine (ALO-LSSVM). The results showed that CARS-ALO-LSSVM model had the optimum effect. The correlation coefficients of the six index components were greater than 0.93, and the relative standard errors were controlled within 6%. ALO-LSSVM was more suitable for a large number of samples with rich information, and the prediction effect and stability of the model were significantly improved. The general models with good predicting effect can be used for the rapid quality determination of Yaobitong capsule intermediates.
3.Buzhong Yiqitang Regulates Mitochondrial Homeostasis of Skeletal Muscle via PINK1 Pathways to Resist Exercise-induced Fatigue
Huani WEI ; Ting JIANG ; Juan PENG ; Chunxiang JING ; Wei LIU ; Huashan PAN ; Daorui CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):31-39
ObjectiveTo explore the effect of Buzhong Yiqitang on exercise-induced fatigue and its potential mechanism. MethodsSixty male SPF-grade C57BL/6J mice were randomized into blank, model, low-, medium-, high-dose (4.1, 8.2, 16.4 g·kg-1, respectively) Buzhong Yiqitang, and vitamin C (0.04 g·kg-1) groups. The blank and model groups were administrated with normal saline. Each group was administrated with corresponding agents by gavage at a dose of 0.2 mL once a day. Except the blank group, other groups underwent a 6-weeks exhaustive swimming test under negative gravity. At the end of the experiment, blood was collected, and the thymus, spleen, liver, and kidney weights were measured. Serum levels of lactic acid (LD), blood urea nitrogen (BUN), creatine kinase (CK), and malondialdehyde (MDA) were assessed by kits to evaluate fatigue. Hematoxylin-eosin staining was performed to observe pathological changes in the skeletal muscle. Electron microscopy was used to examine the skeletal muscle cell ultrastructure, with a focus on mitochondrial morphological changes. The adenosine triphosphate (ATP) content and activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ in skeletal muscle were determined by kits. The expression levels of key genes and proteins in the PTEN-induced putative kinase 1 (PINK1)-mediated mitochondrial homeostasis pathways in the skeletal muscle were evaluated via Real-time PCR and Western blot, respectively. ResultsCompared with the blank group, the model group showed reductions in weight gain rate (P<0.01) and thymus index (P<0.01), rises in serum levels of LD, BUN, MDA, and CK (P<0.01), disarrangement of skeletal muscle, broken muscle fibers, inflammatory cell infiltration in muscle fiber gaps, abnormal morphological changes (increased vacuolated mitochondria and disappearance of cristae) of mitochondria in skeletal muscle cells, and decreased mitochondria. In addition, the skeletal muscle in the model group showed reduced content of ATP, weakened activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ (P<0.05), up-regulated mRNA levels of PINK1, E3 ubiquitin-protein ligase (Parkin), hairy/enhancer-of-split related with YRPW motif 1 (HEY1), dynamin-related protein 1 (Drp1), sequestosome 1 (p62), and hypoxia-inducible factor 1 alpha (HIF-1α) (P<0.05), and down-regulated protein level of microtubule-associated protein 1-light chain 3B (LC3B) (P<0.01). Compared with the model group, Buzhong Yiqitang prolonged the swimming exhaustion time (P<0.01), increased the weight gain rate (P<0.01) and thymus index (P<0.01), lowered the serum levels of LD, BUN, MDA, and CK (P<0.05, P<0.01). The skeletal muscle in the Buzhong Yiqitang groups showed neat arrangement, reduced inflammatory cells, intact mitochondria with dense cristae, and increased mitochondria. In addition, the skeletal muscle in the Buzhong Yiqitang groups showcased increased ATP content, enhanced activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ (P<0.05, P<0.01), up-regulated protein levels of PINK1, Parkin, HEY1, LC3B, and Drp1 and mRNA level of HIF-1α (P<0.05, P<0.01), and down-regulated expression level of p62 (P<0.05, P<0.01). ConclusionBuzhong Yiqitang can prevent and treat exercise-induced fatigue by regulating the mitochondrial homeostasis of skeletal muscle via the HIF-1α/PINK1/Parkin and HIF-1α/HEY1/PINK1 signaling pathways.
4.Buzhong Yiqitang Regulates Mitochondrial Homeostasis of Skeletal Muscle via PINK1 Pathways to Resist Exercise-induced Fatigue
Huani WEI ; Ting JIANG ; Juan PENG ; Chunxiang JING ; Wei LIU ; Huashan PAN ; Daorui CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):31-39
ObjectiveTo explore the effect of Buzhong Yiqitang on exercise-induced fatigue and its potential mechanism. MethodsSixty male SPF-grade C57BL/6J mice were randomized into blank, model, low-, medium-, high-dose (4.1, 8.2, 16.4 g·kg-1, respectively) Buzhong Yiqitang, and vitamin C (0.04 g·kg-1) groups. The blank and model groups were administrated with normal saline. Each group was administrated with corresponding agents by gavage at a dose of 0.2 mL once a day. Except the blank group, other groups underwent a 6-weeks exhaustive swimming test under negative gravity. At the end of the experiment, blood was collected, and the thymus, spleen, liver, and kidney weights were measured. Serum levels of lactic acid (LD), blood urea nitrogen (BUN), creatine kinase (CK), and malondialdehyde (MDA) were assessed by kits to evaluate fatigue. Hematoxylin-eosin staining was performed to observe pathological changes in the skeletal muscle. Electron microscopy was used to examine the skeletal muscle cell ultrastructure, with a focus on mitochondrial morphological changes. The adenosine triphosphate (ATP) content and activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ in skeletal muscle were determined by kits. The expression levels of key genes and proteins in the PTEN-induced putative kinase 1 (PINK1)-mediated mitochondrial homeostasis pathways in the skeletal muscle were evaluated via Real-time PCR and Western blot, respectively. ResultsCompared with the blank group, the model group showed reductions in weight gain rate (P<0.01) and thymus index (P<0.01), rises in serum levels of LD, BUN, MDA, and CK (P<0.01), disarrangement of skeletal muscle, broken muscle fibers, inflammatory cell infiltration in muscle fiber gaps, abnormal morphological changes (increased vacuolated mitochondria and disappearance of cristae) of mitochondria in skeletal muscle cells, and decreased mitochondria. In addition, the skeletal muscle in the model group showed reduced content of ATP, weakened activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ (P<0.05), up-regulated mRNA levels of PINK1, E3 ubiquitin-protein ligase (Parkin), hairy/enhancer-of-split related with YRPW motif 1 (HEY1), dynamin-related protein 1 (Drp1), sequestosome 1 (p62), and hypoxia-inducible factor 1 alpha (HIF-1α) (P<0.05), and down-regulated protein level of microtubule-associated protein 1-light chain 3B (LC3B) (P<0.01). Compared with the model group, Buzhong Yiqitang prolonged the swimming exhaustion time (P<0.01), increased the weight gain rate (P<0.01) and thymus index (P<0.01), lowered the serum levels of LD, BUN, MDA, and CK (P<0.05, P<0.01). The skeletal muscle in the Buzhong Yiqitang groups showed neat arrangement, reduced inflammatory cells, intact mitochondria with dense cristae, and increased mitochondria. In addition, the skeletal muscle in the Buzhong Yiqitang groups showcased increased ATP content, enhanced activities of mitochondrial respiratory chain complexes Ⅰ, Ⅱ, and Ⅴ (P<0.05, P<0.01), up-regulated protein levels of PINK1, Parkin, HEY1, LC3B, and Drp1 and mRNA level of HIF-1α (P<0.05, P<0.01), and down-regulated expression level of p62 (P<0.05, P<0.01). ConclusionBuzhong Yiqitang can prevent and treat exercise-induced fatigue by regulating the mitochondrial homeostasis of skeletal muscle via the HIF-1α/PINK1/Parkin and HIF-1α/HEY1/PINK1 signaling pathways.
5.Pharmacodynamic study of Tianjiang xueshuantong pills in the treatment of coronary heart disease
Wenjie LI ; Yingying LI ; Jiang BIAN ; Ting LIU ; Yunxuan GUAN ; Xibiao ZHANG ; Shiliang ZHOU ; Li SUN ; Xi JIANG
China Pharmacy 2025;36(11):1358-1363
OBJECTIVE To study the efficacy of Tianjiang xueshuantong pills in the treatment of coronary heart disease. METHODS In accordance with the common pathogenesis of coronary heart disease, acute myocardial ischemia model, hyperlipidemia model, blood stasis model, and carotid artery thrombosis model were established using Wistar rats or SD rats as the experimental subjects. The effects of Tianjiang xueshuantong pills administered at high, medium, and low doses (0.6, 1.2 and 2.4 g/kg) on hemodynamic parameters and myocardial enzyme markers [lactate dehydrogenase (LDH), creatine kinase-MB (CK- MB)], oxidative stress factors [superoxide dismutase (SOD), malondialdehyde (MDA), glutathione (GSH)], inflammatory cytokines [tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-1β, monocyte chemotactic protein-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1)], myocardial infarction percentage, serum lipid indexes [total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL)], platelet aggregation function 话:022-84845240。E-mail:jiangx@tjipr.com [maximum aggregation rate (MAR)], and thrombus formation indexes [thrombosis time, thrombus mass, thrombus protein content, plasminogen activator inhibitor-1 (PAI-1), and tissue-type plasminogen activator (t-PA)] were evaluated in the rat models. RESULTS In myocardial ischemia tests, Tianjiang xueshuantong pills significantly reduced the percentage of myocardial infarction and the levels of CK-MB, LDH, MDA, GSH, IL-6, TNF-α, IL- 1β, and MCP-1 in serum (P<0.05 or P<0.01). In hyperlipidemia tests, high dose of Tianjiang xueshuantong pills significantly reduced the serum levels of TC, LDL and significantly increased the level of HDL in rats after 2 weeks and 4 weeks of administration. In blood stasis tests, different doses of Tianjiang xueshuantong pills significantly reduced MAR of rats (P<0.01). In artery thrombosis tests, high dose of Tianjiang xueshuantong pills significantly prolonged the time of thrombosis formation (P< 0.01), significantly reduced the weight and protein content of thrombus and the level of PAI-1 in serum (P<0.01). CONCLUSIONS Tianjiang xueshuantong pills exert therapeutic effects on coronary heart disease through multi-dimensional synergistic actions, including anti-myocardial ischemia, lipid-lowering, and anti-thrombotic effects.
6.Mechanism of Huangqi Guizhi Wuwutang in Treatment of Sarcopenia Associated with Rheumatoid Arthritis by Improving Skeletal Muscle Homeostasis Through Regulation of Autophagy
Yakun WAN ; Yuan LIU ; Yuan QU ; Jingyu GUO ; Ting LIU ; Zhihui BAI ; Di ZHANG ; Ping JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(16):12-23
ObjectiveThis study aims to explore the mechanism of action of Huangqi Guizhi Wuwutang in treating rheumatoid arthritis (RA)-associated sarcopenia by regulating autophagy and improving skeletal muscle homeostasis based on network pharmacology,bioinformatics,machine learning,and animal experiments. MethodsActive ingredients and targets of Huangqi Guizhi Wuwutang were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP),PubChem,and SwissTargetPrediction databases. RA-related datasets were retrieved from the GEO database,and differential genes were screened. Sarcopenia-related targets were searched through GeneCards and the Comparative Toxicology Database (CTD),and autophagy-related gene sets were downloaded from the Human Autophagy Database (HADb). Their intersection was analyzed to identify autophagy-related therapeutic targets,followed by enrichment analysis. A protein-protein interaction (PPI) network was constructed using the STRING database,and key targets were selected using multiple methods. Machine learning was applied to predict models based on the expression profiles of intersecting targets,and nomogram models were constructed based on key targets. Molecular docking of the top four active ingredients with key targets was performed using AutoDockVina. A collagen-induced arthritis (CIA) rat model was established using bovine type Ⅱ collagen,with SD rats divided into groups including a blank group,a model group,and low-,medium-,and high-dose groups of Huangqi Guizhi Wuwutang (2.44,4.88,and 9.76 g·kg-1) and administered for five consecutive weeks. Joint scores and gastrocnemius muscle mass were recorded and analyzed after modeling. Hematoxylin and eosin (HE) staining and Masson's staining were used to observe pathological changes in muscle tissue. Immunofluorescence staining was applied to observe the protein expression levels of myosin heavy chain (MYHC) and insulin-like growth factor-1 (IGF-1) in skeletal muscle. Western blot was used to detect the protein expression levels of autophagy-related proteins ATG5,Beclin1,LC3B,muscle-specific proteins (MuRF1),MaFbx,and MYHC. Real-time quantitative reverse transcription PCR (Real-time PCR) was performed to measure the mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,MaFbx,and MYHC in muscle tissue. ResultsNetwork pharmacology revealed that Huangqi Guizhi Wuwutang shared 25 common targets with autophagy genes related to RA-associated sarcopenia. The PPI network and machine learning identified six key targets,which were primarily involved in autophagy and inflammatory pathways. Animal experiments showed that compared to the blank group,the model group had significantly higher joint scores (P<0.01) and lower gastrocnemius muscle index (P<0.01). HE staining indicated a significant reduction in the cross-sectional area of gastrocnemius muscle fibers,with notable inflammatory cell infiltration and muscle atrophy in the model group. Masson's staining revealed obvious collagen fiber proliferation and deposition,with significant muscle fibrosis in the model group. The protein and mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,and MaFbx were significantly increased (P<0.01),while the protein expression of MYHC and IGF1 was significantly downregulated (P<0.01). Compared with the model group,the high-dose group of Huangqi Guizhi Wuwutang showed significantly reduced protein and mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,and MaFbx (P<0.01) and increased protein expression levels of MYHC and IGF1 (P<0.01). The cross-sectional area of muscle fibers increased,and the muscle cell morphology approached normal. Moreover,pathological abnormalities in the gastrocnemius muscle were significantly improved,with reduced collagen fiber proliferation (P<0.01). ConclusionHuangqi Guizhi Wuwutang can mediate autophagy by regulating the expression of ATG5,Beclin1,LC3B,and IGF1,thereby reducing skeletal muscle catabolism and improving skeletal muscle homeostasis,which contributes to the treatment of RA-associated sarcopenia. The findings provide insight into the mechanisms underlying the effects of Huangqi Guizhi Wuwutang in the treatment of RA-related sarcopenia and offer a reference for its enhanced clinical application.
7.Effectiveness of autologous platelet-rich plasma for blood conservation and its prognostic impact in patients with type A aortic dissection
Qian ZHENG ; Shoumei CHEN ; Ming XIE ; Shenshen ZHI ; Kun LIU ; Ting JIANG
Chinese Journal of Blood Transfusion 2025;38(8):1035-1042
Objective: To investigate the effects of autologous platelet-rich plasma (aPRP) collected using a continuous blood cell separator on blood conservation and prognosis in patients with type A aortic dissection. Methods: The clinical data of patients who underwent emergency aortic replacement for acute type A aortic dissection at our hospital from January 2020 to December 2023 were respectively analyzed. Patients were divided into two groups based on whether they received aPRP collection before surgery for subsequent reinfusion: the aPRP group (n=32) and the control group (n=35). The volume of aPRP collected and the platelet concentration in the aPRP were recorded. The volumes of allogeneic blood and blood products transfused, and the associated costs during hospitalization were compared between two groups. Intraoperative blood loss, perioperative laboratory parameter changes, 24-hour postoperative drainage volume, duration of ICU stay and mechanical ventilation, length of hospital stay, and mortality rate of the two groups were also compared. Results: The platelet concentration in aPRP was (491.5±85.4)×10
/L, accounting for (24.1±9.6)% of the patient's total platelet count. The volume of aPRP collected accounted for (23.0±6.3)% of the patient's total plasma volume. Compared with the control group, the aPRP group demonstrated significantly reduced transfusion volumes of allogeneic red blood cells, plasma, and platelets (P<0.05), along with significantly lower blood-related costs during hospitalization (P<0.05). Postoperative coagulation parameters (APTT, PT, INR, and TEG) were significantly improved (P<0.05), and platelet counts were markedly increased (P<0.05) in aPRP group as compared with the control group. No statistically significant differences were observed in postoperative use of prothrombin complex concentrate and fibrinogen between the two groups. Similarly, there were no significant differences in postoperative 24-hour drainage volume, 24-hour extubation rate, ICU length of stay, duration of mechanical ventilation, or total hospital length of stay. The incidence of complications and mortality did not differ significantly between the two groups. Conclusion: The administration of aPRP significantly reduces the requirement for perioperative allogeneic blood transfusion in patients undergoing surgery for type A aortic dissection. Furthermore, it enhances coagulation function and reduces associated transfusion costs, thereby establishing itself as an effective and safe strategy for blood conservation.
8.Status of health communication of medical institutions using new media platforms in Shanghai
Zongmin JIANG ; Huilin LIU ; Wei JIN ; Jingfeng ZHOU ; Quqing WANG ; Ting WANG ; Jiwei WANG ; Xiaomin WEI
Shanghai Journal of Preventive Medicine 2024;36(3):269-273
ObjectiveTo investigate the current situation of health communication carried out by medical institutions in Shanghai through new media platforms such as WeChat, Weibo, Toutiao, Douyin, Kuaishou, Bilibili and WeChat Videos, and to propose targeted measures. MethodsBased on the systematic collection of new media accounts of medical institutions in Shanghai, and through the combination of keyword screening and manual audit, health communication data of medical institutions on new media platforms were determined. ResultsData from 1 117 new media accounts of 162 medical institutions in Shanghai were collected, including 610 WeChat official accounts, 105 WeChat video accounts, 89 Weibo accounts, 18 Bilibili accounts, 198 Douyin accounts, 37 Toutiao accounts, and 60 Kuaishou accounts, totaling 111 853 posts. After keyword sorting and manual screening, a total of 66 761 health science posts were collected, with WeChat Official Accounts, Douyin, and Weibo having the top three highest number of posts. Video-based new media such as Douyin, WeChat Videos, Kuaishou, and Bilibili had a better communication impact than text and image-based new media like WeChat Official Accounts, Weibo, and Toutiao. Among them, Douyin and Toutiao were the best platforms for video and text-image-based new media, respectively. ConclusionMedical institutions in Shanghai recognize the importance of new media in health communication and have made full use of various media platforms to carry out health communication,having a certain impact on health education. In the future, medical institutions should choose appropriate platforms based on target audiences and content characteristics, fully leverage the advantages of various platforms, explore innovative communication strategies, promote the dissemination of health knowledge, and enhance the health literacy of the public.
9.TMZ@ZIF-8 nanoparticles:preparation,characterization,and in vivo and in vitro anti-tumor studies
Ting LIU ; Yi WANG ; Binghui LI ; Shuo HE ; Jiang XIA ; Ting ZHU
China Pharmacy 2024;35(9):1100-1107
OBJECTIVE To prepare zeolite imidazole framework (ZIF)-8 nanoparticles (NPs) loaded with temozolomide (TMZ) (abbreviated as TMZ@ZIF-8 NPs) drug delivery system, thus increasing drug enrichment and anti-glioma effects in lesions. METHODS After preparing ZIF-8 NPs using the room temperature solution reaction method, the impregnation method was used to prepare TMZ@ZIF-8 NPs drug delivery system. Characterization was carried out using transmission electron microscopy, laser particle size, and Fourier transform infrared spectroscopy, and dissolution and anti-tumor activity experiments in vitro and in vivo were conducted. RESULTS TMZ@ZIF-8 NPs were successfully prepared with the particle size of (126.23±7.92) nm, drug loading amount of (28.79±1.26)%, and 72 h cumulative dissolution rate of (72.36±3.62)%. The results of in vitro anti-tumor activity experiments showed that the relative cell survival rate of ZIF-8 NPs remained above 90%; the prepared TMZ@ZIF-8 NPs delivery system exhibited superior inhibition, higher uptake capacity, and better promoting apoptosis effects on the growth and proliferation of C6 cells as compared with the free TMZ. The results of in vivo anti-tumor activity experiments showed that ZIF-8 NPs were not enriched in the brain of rats, and the enrichment effect of TMZ in the brain was not significant, while TMZ@ZIF-8 NPs had a significant enrichment effect in the brain. CONCLUSIONS ZIF-8 NPs can effectively load TMZ, and successfully prepared TMZ@ZIF-8 NPs can improve TMZ uptake ability and anti-glioma effect.
10.Treatment of Exercise-induced Fatigue with Buzhong Yiqitang Through Adipor1/AMPK/PGC-1α to Regualte Lipid Metabolism
Juan PENG ; Huani WEI ; Ting JIANG ; Wei LIU ; Huashan PAN ; Daorui CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(12):24-30
ObjectiveTo discuss the impact of Buzhong Yiqitang on lipid metabolism in skeletal muscle of exercise-induced fatigue (EIF) mice through adiponectin receptor 1 (Adipor1)/adenosine 5'-monophosphate(AMP)-activated protein kinase (AMPK)/peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α). MethodC57BL6J mice were randomly divided into the control group, model group, low, middle, and high dose groups of Buzhong Yiqitang, and vitamin C group. No intervention was given to the control group, while the other groups were subjected to exhaustive swimming training to establish the EIF model. One hour before exhaustion, 0.2 mL distilled water was given to the control group and the model group, while the mice in the low, middle, and high dose groups of Buzhong Yiqitang were given intragastrically Buzhong Yiqitang of 4.1, 8.2, and 16.4 g·kg-1, respectively, and the vitamin C group was given vitamin C of 0.04 g·kg-1 via gavage for a duration of six weeks. After six weeks of the experiment, the growth rate of body weight, organ index, and exhaustive swimming time were calculated. Enzyme colorimetry was utilized to detect the levels of blood urea nitrogen (BUN), creatine kinase acid (CK), lactate dehydrogenase acid (LDH), and lactic acid (LD). The pathological changes of skeletal muscle were observed using hematoxylin -eosin (HE) staining, while the ultrastructure of skeletal muscle was observed with transmission electron microscope (TEM). The contents of free fatty acids (NEFA) and triglyceride acid (TG) in serum were also examined by microplate method. The protein expressions of Adipor1, p-AMPK/AMPK, PGC-1α, and HK2 in the skeletal muscle were measured by Western blot. ResultCompared with those of the control group, the growth rate of body weight and thymus index of the model group were decreased, and the serum levels of BUN, CK, LD, and LDH were increased (P<0.01). The contents of NEFA and TG were decreased (P<0.01), and the protein expression of Adipor1, p-AMPK/AMPK, PGC-1 α, and HK2 in the skeletal muscle decreased (P<0.05, P<0.01). Compared with those in the model group, the growth rate of body weight, thymus index, and exhaustive swimming time were significantly increased (P<0.01), and the levels of BUN, CK, LD, and LDH dropped in the high dose group of Buzhong Yiqitang (P<0.01). The levels of NEFA and TG were greatly improved (P<0.01). The protein expressions of Adipor1, p-AMPK/AMPK, PGC-1α, and HK2 in the skeletal muscle were significantly increased (P<0.05, P<0.01). Compared with those in the model group, the thymus index and exhaustive swimming time were significantly increased in the vitamin C group, and the levels of BUN, CK, and LD dropped (P<0.05, P<0.01). The levels of NEFA and TG were improved significantly (P<0.01), and the protein expression of Adipor1 in skeletal muscle was increased greatly (P<0.01). ConclusionBuzhong Yiqitang can delay the development of EIF, which may be connected with the regulation of the Adipor1/AMPK/PGC-1α signaling pathway and the improvement of the utilization rate of skeletal muscle to fat.

Result Analysis
Print
Save
E-mail