1.Pathogenesis and treatment progress of flap ischemia-reperfusion injury
Bo HE ; Wen CHEN ; Suilu MA ; Zhijun HE ; Yuan SONG ; Jinpeng LI ; Tao LIU ; Xiaotao WEI ; Weiwei WANG ; Jing XIE
Chinese Journal of Tissue Engineering Research 2025;29(6):1230-1238
BACKGROUND:Flap transplantation technique is a commonly used surgical procedure for the treatment of severe tissue defects,but postoperative flap necrosis is easily triggered by ischemia-reperfusion injury.Therefore,it is still an important research topic to improve the survival rate of transplanted flaps. OBJECTIVE:To review the pathogenesis and latest treatment progress of flap ischemia-reperfusion injury. METHODS:CNKI,WanFang Database and PubMed database were searched for relevant literature published from 2014 to 2024.The search terms used were"flap,ischemia-reperfusion injury,inflammatory response,oxidative stress,Ca2+overload,apoptosis,mesenchymal stem cells,platelet-rich plasma,signaling pathways,shock wave,pretreatment"in Chinese and English.After elimination of irrelevant literature,poor quality and obsolete literature,77 documents were finally included for review. RESULTS AND CONCLUSION:Flap ischemia/reperfusion injury may be related to pathological factors such as inflammatory response,oxidative stress response,Ca2+overload,and apoptosis,which can cause apoptosis of vascular endothelial cells,vascular damage and microcirculation disorders in the flap,and eventually lead to flap necrosis.Studies have found that mesenchymal stem cell transplantation,platelet-rich plasma,signaling pathway modulators,shock waves,and pretreatment can alleviate flap ischemia/reperfusion injuries from different aspects and to varying degrees,and reduce the necrosis rate and necrosis area of the grafted flap.Although there are many therapeutic methods for skin flap ischemia/reperfusion injury,a unified and effective therapeutic method has not yet been developed in the clinic,and the advantages and disadvantages of various therapeutic methods have not yet been compared.Most of the studies remain in the stage of animal experiments,rarely involving clinical observations.Therefore,a lot of research is required in the future to gradually move from animal experiments to the clinic in order to better serve the clinic.
2.Prognosis of deep lamellar keratoplasty versus penetrating keratoplasty in the treatment of stromal corneal dystrophy
Ruyi JING ; Yingxin CHEN ; Lei CAO
Chinese Journal of Tissue Engineering Research 2025;29(8):1626-1633
BACKGROUND:The traditional surgical treatment for stromal corneal dystrophy is penetrating keratoplasty.In recent years,more and more doctors are considering using deep lamellar keratoplasty to treat stromal corneal dystrophy.Few studies comparing penetrating keratoplasty and deep lamellar keratoplasty for stromal corneal dystrophy have been reported in China. OBJECTIVE:To compare the clinical efficacy of deep lamellar keratoplasty and penetrating keratoplasty in the treatment of stromal corneal dystrophy. METHODS:Fifty-seven patients(57 eyes)diagnosed with stromal corneal dystrophy and admitted at the General Hospital of Northern Theater Command from January 2000 to January 2018 were selected,including 18 males and 39 females,aged(52.9±20.0)years.They were divided into two groups based on the surgical procedure:21 cases(21 eyes)in the deep lamellar keratoplasty group and 36 cases(36 eyes)in the penetrating keratoplasty group.A 12-month follow-up was conducted to observe the best-corrected visual acuity,corneal endothelial cell density,corneal grafttransparency,intraoperative and postoperative complications,and recurrence of the original disease. RESULTS AND CONCLUSION:Visual acuity at 1,3,6,and 12 months postoperatively was higher than preoperatively in both groups(P<0.05).The postoperative best-corrected visual acuity between the two groups showed no significant difference(P>0.05).With the prolongation of postoperative time,the corneal endothelial cell density gradually decreased in the two groups,and the annual loss rate of corneal endothelial cell density in the penetrating keratoplasty group was higher than that of the deep lamellar keratoplasty group at 6 and 12 months postoperatively(P<0.05),while there was no significant difference in corneal grafttransparency between the two groups at 12 months postoperatively(P>0.05).There were six cases of complications in the deep lamellar keratoplasty group and 14 cases of complications in the penetrating keratoplasty group.There was no recurrence in 57 cases within 12 months after surgery,and the difference in recurrence rates between the two groups at 5 years after surgery was not significant(P>0.05).The graftsurvival rates at 5 years after surgery in the penetrating keratoplasty group and the deep lamellar keratoplasty group were 83%and 86%,respectively,and there was no significant difference between the two groups(P>0.05).To conclude,deep lamellar keratoplasty could be considered as an alternative to penetrating keratoplasty in the treatment of stromal corneal dystrophy.
3.Component Analysis of Anmeidan and Its Mechanism in Regulating ERK1/2/MNK/ELF4E Signaling Pathway to Improve Circadian Rhythm in Insomnia Rats
Yi GAO ; Bo XU ; Jing XIA ; Linlin CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):44-53
ObjectiveTo identify the main chemical constituents of Anmeidan (AMD) and to explore the mechanism of AMD in regulating the extracellular signal-regulated kinase 1/2 (ERK1/2)/mitogen-activated protein kinase (MAPK)-interacting serine/threonine-protein kinase (MNK)/eukaryotic translation initiation factor 4E (eIF4E) signaling pathway to improve circadian rhythm disturbances in insomnia rats. MethodsThe main chemical constituents of AMD were identified using ultra-high-performance liquid chromatography-linear ion trap-electrostatic orbital trap mass spectrometry (UPLC-LTQ/Orbitrap/MS) in combination with reference standards. Sixty male Sprague-Dawley (SD) rats were randomly divided into control, model, melatonin, and AMD low-, medium-, and high-dose groups, with 10 rats in each group. Except for the control group, all rats were administered p-chlorophenylalanine via intraperitoneal injection to establish an insomnia model. The activity-rest rhythm of rats was assessed using the open field test and circadian rhythm test. Hematoxylin-eosin (HE) staining and Nissl staining were used to observe structural changes in hypothalamic neurons. Immunofluorescence, real-time quantitative polymerase chain reaction (Real-time PCR), and Western blot analysis were employed to detect mRNA and protein expression levels of ERK1/2, MNK, and eIF4E in the hypothalamus. ResultsA total of 50 chemical components, including flavonoids, phenylpropanoids, triterpenoid saponins, alkaloids, and lignans, were identified in AMD. Compared with the control group, the model group exhibited significantly increased total distance traveled, average speed, central area residence time, and cumulative rearing time (P<0.01), as well as prolonged cumulative activity time and total activity time in both light and dark phases (P<0.01). Hypothalamic neurons in the model group were sparsely arranged, reduced in number, and exhibited nuclear disappearance or nucleolar rupture, with a significantly increased apoptosis index (P<0.01). The cytoplasm appeared turbid, Nissl body staining was lighter, and the Nissl body apoptosis index was significantly increased (P<0.01). The mRNA expression levels of ERK1/2, MNK, and eIF4E were significantly decreased (P<0.01), along with a significant reduction in protein expression levels of ERK1/2, phosphorylated ERK1/2 (p-ERK1/2), MNK, phosphorylated MNK (p-MNK), eIF4E, and phosphorylated eIF4E (p-eIF4E) (P<0.01). Compared with the model group, the total distance, average speed, central area residence time and body upright cumulative time of the AMD high-dose group were significantly reduced (P<0.01). The total distance, average speed and body upright cumulative time of the AMD medium-dose group were significantly reduced (P<0.01). The cumulative time of light activity and total time of activity in each dose group of AMD were significantly shortened (P<0.01). The cumulative time of dark activity in the high-dose group of AMD was prolonged (P<0.01). The neurons in the middle and high dose groups of AMD were closely arranged, the number of neurons increased, and the apoptosis index of hypothalamic cells decreased significantly (P<0.05, P<0.01). The cytoplasm of the low, middle and high dose groups of AMD was clear, the color of Nissl body became darker, and the apoptosis index of Nissl body decreased significantly (P<0.01). The expression of ERK1/2, MNK and eIF4E mRNA and protein in the hypothalamus of the middle and high dose groups of AMD increased significantly (P<0.05, P<0.01). ConclusionAMD primarily contains 50 chemical constituents, including flavonoids, phenylpropanoids, and triterpenoid saponins. It exhibits a "synergistic enhancement" effect through multiple components and multiple pathways to improve insomnia. AMD ameliorates circadian rhythm disturbances in p-chlorophenylalanine-induced insomnia rats by upregulating ERK1/2/MNK/eIF4E signaling pathway-related proteins.
4.Research on The Construction and Application of Multiple Fluorescence Amplification System for Three Kinds of Stains
Yi-Fan BAI ; He-Miao ZHAO ; Jing CHEN ; Hong-Di LIU ; Rui-Qin YANG ; Chong WANG
Progress in Biochemistry and Biophysics 2025;52(4):982-994
ObjectiveA multiplex amplification system was constructed based on the capillary electrophoresis platform for simultaneous detection of saliva, semen, and vaginal secretions using tissue-specific RNA markers. The aim of this study is to identify the tissue origin of suspicious body fluid stains found at crime scenes and determine whether the body fluid stains at the crime scene are one or several types among saliva, semen, and vaginal secretions. MethodsThirty saliva samples, forty semen samples, and forty vaginal secretion samples (half from 2015 and half from 2024) were collected from healthy adult volunteers. Through primer designing, system formulation, and PCR condition optimization, a multiplex fluorescent amplification system was constructed. The specificity, sensitivity, and detection ability for mixed samples of this system were investigated, and it was tested using real crime scene materials. In the primer design stage, to reduce the requirements for RNA template quality, the amplification products were set within 80-300 bp. In the system formulation stage, dominant and subordinate primers were mainly considered. By reducing the concentration of dominant primers and increasing that of subordinate primers, a capillary electrophoresis spectrum with an appropriate peak height ratio was finally obtained. Additionally, gradient experiments were designed to adjust the concentrations of PCR reagents and PCR amplification conditions, and multiple versions of DNA amplification enzymes were optimized to achieve the best experimental results. ResultsThrough statistical analysis, there was no significant difference in the capillary electrophoresis of the 3 types of body fluid samples from the two years (2015 and 2024), demonstrating that the sample preservation method in this study can preserve samples for a relatively long time. The composite amplification system constructed in this study exhibited high specificity for all 3 types of body fluid, with no cross-reactions between the markers of each type of body fluid. The minimum detection thresholds for the 3 types of body fluid reached 0.002 9, 0.001 5, and 0.42 mg/L, respectively. This system also had a high degree of discrimination for mixed samples, especially for semen-saliva mixtures, where each body fluid marker could still be successfully detected when the concentration ratio of semen to saliva was 100:1. Meanwhile, in the two actual cases presented in this article, the application of this composite amplification system performed outstandingly. ConclusionThe composite amplification detection system constructed in this study can achieve the correct screening of saliva, semen, and vaginal secretions, overcoming the problems such as low specificity and sensitivity of marker tests and unbalanced RFU values of each marker in previous studies. The specificity and sensitivity meet the practical work requirements, and the operation is simple. It provides an analytical and identification method for body fluid stains in actual case and is applicable to the identification of the tissue origin of biological evidence at crime scenes involving sexual assault, indecent assault, and other criminal acts. In the future, more types of body fluid markers will be screened to expand the types of body fluids detected by the system, and body fluid-specific cSNP and cInDel genetic markers will be introduced to infer the sources (individuals and types) of mixed and complex stains more accurately.
5.Improvement effects and mechanism of urinastatin on cisplatin-induced myocardial injury
Jiafu REN ; Pengfei CHEN ; Rong A ; Jing LI
China Pharmacy 2025;36(8):920-925
OBJECTIVE To investigate the improvement effects and potential mechanism of ulinastatin (UTI) on cisplatin (CP)-induced myocardial injury. METHODS Rabbits were used as study subjects and randomly divided into blank group (normal saline 2 mL/d, for consecutive 7 d), CP group (150 mg/m2, on the 1st and 4th day), UTI low-dose/high-dose group (UTIL/UTIH group, UTL 25 000 or 50 000 IU/kg, once a day, for consecutive 7 d), c-Jun N-terminal kinase (JNK) inhibitor group (JNKi group, SP600125 15 mg/kg, on the 1st and 4th day+CP 150 mg/m2, on the 1st and 4th day+normal saline 2 mL/d, on the other 5 days). Except for the blank group, rabbits in the other groups were injected with relevant medicine and/or normal saline via a marginal ear vein on one side. The serum level of cardiac troponin Ⅰ (cTnⅠ) in rabbits on the 1st and 8th days of the detection experiment, as well as the levels of superoxide dismutase (SOD), glutathione (GSH) and malondialdehyde (MDA) in myocardial tissue on the 8th day of the experiment, were all measured in each group. The pathological changes and myocardial cell apoptosis in myocardial tissue were observed, and the protein expressions of B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), JNK, phosphorylated JNK (P-JNK), mitochondrial fission factor (Mff), and dynamin-related protein 1 (Drp1) in myocardial tissue were all determined. RESULTS Compared with the blank group, the CP group showed significant myocardial injury. The cell apoptotic rate, the levels of cTnⅠ in serum and MDA in myocardial tissue, as well as protein expressions of Bax, JNK, p-JNK, Mff, and Drp1, were all significantly increased or up-regulated, SOD level and protein expression of Bcl-2 significantly reduced or down+regulated(P<0.05). Compared with the CP group, the myocardial injury in rabbits from each drug treatment group showed improvement. The cell apoptosis index, the levels of cTnⅠ in serum and MDA in myocardial tissue, as well as protein expressions of Bax, JNK, p-JNK, Mff (except for UTIL group), and Drp1, were all significantly reduced or down-regulated, while SOD, GSH level and protein expression of Bcl-2 significantly increased or up-regulated (P<0.05); moreover, the improvement in some indicators was significantly better in the UTIH group and the JNKi group compared to the UTIL group (P<0.05). CONCLUSIONS UTI may ameliorate CP-induced myocardial injury, the potential mechanism of which may be associated with antagonizing oxidative stress and inhibiting the JNK/Mff signaling pathway.
6.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.
7.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.
8.Correlation between the health literacy of reducing salt,oil and sugar on overweight and obesity among fourthgrade elementary school students and their parents
HAO Ying, LIU Danru, CHEN Xianxian, REN Jie, XU Cong, DU Fengjun, GUO Xiaolei, DONG Jing, MA Jixiang
Chinese Journal of School Health 2025;46(4):489-493
Objective:
To analyze the effects of health literacy on overweight and obesity among primary school students and their parents in terms of salt, oil and sugar reduction (referred to as the "three reductions"), so as to provide a theoretical basis for the development of obesity control measures.
Methods:
From March to April 2024, a total of 1 022 fourthgrade primary school students and 913 parents were surveyed in 24 classes in six counties in Shandong Province using multistage cluster random sampling, and physical measurements of primary school students were conducted. Pearsons correlation analysis and ordered multivariate Logistic regression were used to investigate the associations between health literacy of primary school students and their parents with overweight and obesity among children.
Results:
The detection rates of overweight and obesity primary school students in Shandong Province were 14.87% and 24.66%, respectively, with significant sex difference in obesity rate (29.46% for boys and 19.76% for girls) (χ2=12.93, P<0.01). In addition to students reducing oil scores, parental reducing salt,reducing oil,reducing sugar, comprehensive health literacy scores and students reducing salt,reducing sugar and comprehensive health literacy scores showed a negative relationship with students overweight and obesity (r=-0.10, -0.08, -0.07, -0.10, -0.04, -0.07, -0.03, P<0.05). The overweight and obesity rates among primary school students with high parental reducing salt,reducing oil,reducing sugar and composite health literacy scores were lower (OR=0.69, 0.69, 0.71, 0.63, P<0.05); and the overweight and obesity rate among students with high parental and low parental and high and low parental health literacy scores were lower (OR=0.68, 0.57, P<0.05).
Conclusion
Improving health literacy regarding "three reductions" for parents and children, especially parents, can effectively reduce the risk of childhood overweight and obesity.
9.Preliminary exploration of differentiating and treating multiple system atrophy from the perspective of the eight extraordinary meridians
Di ZHAO ; Zhigang CHEN ; Nannan LI ; Lu CHEN ; Yao WANG ; Jing XUE ; Xinning ZHANG ; Chengru JIA ; Xuan XU ; Kaige ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):392-397
Multiple system atrophy (MSA) is a rare neurodegenerative disease with complex clinical manifestations, presenting substantial challenges in clinical diagnosis and treatment. Its symptoms and the eight extraordinary meridians are potentially correlated; therefore, this article explores the association between MSA symptom clusters and the eight extraordinary meridians based on their circulation and physiological functions, as well as their treatment strategies. The progression from deficiency to damage in the eight extraordinary meridians aligns with the core pathogenesis of MSA, which is characterized by "the continuous accumulation of impacts from the vital qi deficiency leading to eventual damage". Liver and kidney deficiency and the emptiness of the eight extraordinary meridians are required for the onset of MSA; the stagnation of qi deficiency and the gradual damage to the eight extraordinary meridians are the key stages in the prolonged progression of MSA. The disease often begins with the involvement of the yin and yang qiao mai, governor vessel, thoroughfare vessel, and conception vessel before progressing to multiple meridian involvements, ultimately affecting all eight extraordinary meridians simultaneously. The treatment approach emphasizes that "the direct method may be used for joining battle, but indirect method will be needed in order to secure victory" and focuses on "eliminate pathogenic factors and reinforce healthy qi". Distinguishing the extraordinary meridians and focusing on the primary symptoms are pivotal to improving efficacy. Clinical treatment is aimed at the target, and tailored treatment based on careful clinical observation ensures precision in targeting the disease using the eight extraordinary meridians as the framework and core symptoms as the specific focus. Additionally, combining acupuncture, daoyin therapy, and other method may help prolong survival. This article classifies clinical manifestations based on the theory of the eight extraordinary meridians and explores treatment.
10.Analysis of Potential Active Components and Molecular Mechanism of Baoxin Granules Regulating Ferroptosis in Treatment of Heart Failure
Yu CHEN ; Maolin WANG ; Yun WANG ; Yifan ZHAO ; Jing XU ; Hongwei WU ; Fang WANG ; Xiaoang ZHAO ; Youming LI ; Jixiang TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):202-209
ObjectiveBased on ultra performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS), network pharmacology, molecular docking and cell experiments, the active ingredients, possible targets and molecular mechanisms of Baoxin granules(BXG) regulating ferroptosis in the treatment of heart failure(HF) were explored. MethodsBXG intestinal absorption fluid was prepared by everted gut sac and the chemical composition contained therein were identified by UPLC-Q-TOF-MS. According to the obtained components, the potential targets of BXG were predicted, and the HF-related targets and related genes of ferroptosis were retrieved at the same time, and the intersecting targets were obtained by Venn diagram. In addition, the protein-protein interaction(PPI) network and the component-target network were constructed, and the core components and core targets were obtained by topological analysis. Then Gene Ontology(GO) function and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis were performed on the core targets, and molecular docking validation of the key targets and main components was carried out by AutoDockTools 1.5.7. H9c2 cells were used to establish a oxygen-glucose deprivation model, and the protective effect of BXG on cells was investigated by detecting cell viability, cell survival rate and reactive oxygen species(ROS) level. The protein expression levels of signal transducer and activator of transcription 3(STAT3), phosphorylation(p)-STAT3 and glutathione peroxidase 4(GPX4) were detected by Western blot to clarify the regulatory effect of BXG on ferroptosis. ResultsA total of 61 chemical components in BXG intestinal absorption fluid were identified, and network pharmacology obtained 27 potential targets of BXG for the treatment of HF, as well as 139 signaling pathways. BXG may act on core targets such as STAT3, tumor protein p53(TP53), epidermal growth factor receptor(EGFR), JUN and prostaglandin-endoperoxide synthase 2(PTGS2) through core components such as glabrolide and limonin, which in turn intervene in lipid and atherosclerosis, phosphatidylinositol 3-kinase/protein kinase B(PI3K/Akt), endocrine resistance and other signaling pathways to exert therapeutic effects on HF. Molecular docking showed that the docking results of multiple groups of targets and compounds were good. In vitro cell experiments showed that compared with the blank group, the cell viability and survival rate of the model group were significantly decreased, the level of ROS was significantly increased(P<0.01), the expression levels of STAT3, p-STAT3, p-STAT3/STAT3 and GPX4 proteins were significantly decreased(P<0.05, P<0.01). Compared with the model group, the cell viability and survival rate of the BXG group were significantly increased, the ROS level was significantly decreased(P<0.01), the STAT3, p-STAT3, p-STAT3/STAT3 and GPX4 protein levels were significantly increased(P<0.05, P<0.01). ConclusionBXG may inhibit the occurrence of ferroptosis by up-regulating the expression of STAT3 and GPX4, thus exerting a therapeutic effect on HF, and flavonoids may be the key components of this role.


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