1.Effect of Yangjing Tongluo Prescription on Oxidative Damage of Endometrium in Rats with Intrauterine Adhesion Based on Keap1/Nrf2/HO-1 Signaling Pathway
Jiaying CHEN ; Jing ZENG ; Zhaoling YOU ; Yonglian WANG ; Muya LIU ; Fang ZHOU ; Li TANG ; Sainan TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):100-108
ObjectiveTo explore the mechanisms of Yangjing Tongluo prescription (YJTL) in the treatment of intrauterine adhesion (IUA) from the perspective of oxidative stress mediated by the Kelch-like ECH-associated protein 1/nuclear factor erythroid 2-related factor 2/heme oxygenase-1 (Keap1/Nrf2/HO-1) signaling pathway. MethodsA total of 48 rats with normal estrous cycles were selected and randomly divided into a normal group (n=8) and a modeling group (n=40). An IUA rat model was established using a dual-injury method combining surgical curettage and infection. Eight rats were randomly selected from the modeling group for a pilot experiment to confirm successful model establishment. After successful modeling, the remaining 32 rats were randomly divided into a model group, a low-dose YJTL group (YJTL-L), a high-dose YJTL group (YJTL-H), and a Progynova group. Rats in the normal and model groups were administered purified water (15 mL·kg-1) by gavage daily, while rats in the YJTL-L, YJTL-H, and Progynova groups received YJTL at doses of 6.43 and 12.86 g·kg-1 and Progynova at 2.06 × 10-4 g·kg-1, respectively, for 14 consecutive days. The general condition, uterine morphology, and uterine index of the rats were monitored. Histopathological changes in uterine tissue were observed using hematoxylin-eosin (HE) staining. Serum levels of reactive oxygen species (ROS) and glutathione peroxidase (GSH-Px) were measured by enzyme-linked immunosorbent assay (ELISA). Protein expression levels of Keap1, Nrf2, and HO-1 in endometrial tissue were detected by Western blot. Immunofluorescence (IF) was used to assess the distribution of Nrf2 and HO-1, as well as the expression of Nrf2 in the cytoplasm and nucleus. ResultsCompared with the normal group, rats in the model group exhibited poor mental status and reduced mobility, markedly edematous and tortuous uterine morphology, decreased gland number, and inflammatory reactions in the endometrium, along with an increased uterine organ index (P<0.05). Serum ROS levels were significantly increased (P<0.05), while serum GSH-Px levels were significantly decreased (P<0.05). In endometrial tissue, Keap1 protein expression was increased (P<0.05), whereas Nrf2 and HO-1 protein expression was decreased. Mild nuclear translocation of Nrf2 was observed, accompanied by increased relative fluorescence intensity of nuclear Nrf2 and decreased relative fluorescence intensity of cytoplasmic HO-1. Compared with the model group, all treatment groups showed varying degrees of improvement in the above symptoms and pathological changes. Serum ROS levels were reduced (P<0.05), serum GSH-Px levels were increased (P<0.05), Keap1 protein expression in endometrial tissue was decreased, and Nrf2 and HO-1 protein expression was increased in a dose-dependent manner (P<0.05). Notably, significant nuclear translocation of Nrf2 was observed, with correspondingly increased relative fluorescence intensity of nuclear Nrf2 and enhanced relative fluorescence intensity of cytoplasmic HO-1. ConclusionYJTL may enhance antioxidant capacity and repair oxidative damage to the endometrial basal layer by regulating the Keap1/Nrf2/HO-1 signaling pathway.
2.Exploring on Quality Evaluation Methods of Clinical Case Reports in Traditional Chinese Medicine Based on China Clinical Cases Library of Traditional Chinese Medicine
Kaige ZHANG ; Feng ZHANG ; Bo ZHOU ; Haimin CHEN ; Yong ZHU ; Changcheng HOU ; Liangzhen YOU ; Weijun HUANG ; Jie YANG ; Guoshuang ZHU ; Shukun GONG ; Jianwen HE ; Yang YE ; Yuqiu AN ; Chunquan SUN ; Qingjie YUAN ; Buman LI ; Xingzhong FENG ; Kegang CAO ; Hongcai SHANG ; Jihua GUO ; Xiaoxiao ZHANG ; Zhining TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):271-276
As the core vehicle for preserving and transmitting traditional Chinese medicine(TCM) academic thought and clinical experience, the establishment of a robust quality evaluation system for TCM clinical case reports is a crucial component in the current standardization and modernization of TCM. Based on the practical experience of constructing the China Clinical Cases Library of Traditional Chinese Medicine by the China Association of Chinese Medicine, this study conducted a comprehensive analysis of critical challenges, including insufficient authenticity and unfocused evaluation criteria. It proposed a three-dimensional evaluation framework grounded in the structure-process-outcome logic, encompassing three dimensions of authenticity and standardization, characteristics and advantages, application and translational impact. This framework integrated 12 key evaluation indicators in a systematic manner. The model preserved the academic characteristics of TCM syndrome differentiation and treatment, while aligning with modern scientific research standards, achieving a balance between individualized TCM experience and standardized evaluation. Concurrently, this study provided theoretical foundations and methodological guidance for evaluating the quality of TCM clinical cases, contributing significantly to the inheritance of TCM knowledge, evidence-based practice, and the reform of talent evaluation mechanisms.
3.Preoperative prehabilitation strategies and clinical application in liver transplant recipients
Peiyue CHEN ; Yun DONG ; Jingdong LI ; Chuan YOU
Organ Transplantation 2026;17(2):319-324
Liver transplantation is the most effective treatment for end-stage liver disease and can significantly prolong patient survival. However, patients usually have poor physiological and psychological conditions before and after undergoing liver transplantation surgery, which affects prognosis and reduces quality of life. Preoperative prehabilitation, through intervention modes such as exercise, nutrition and psychology, can improve patients' preoperative functional reserve, alleviate perioperative stress reactions, reduce postoperative infection risks and be beneficial for postoperative recovery after liver transplantation. Therefore, this article reviews the latest research progress on the timing and location of prehabilitation, the necessity of prehabilitation and intervention models for preoperative prehabilitation of liver transplant patients. The aim is to deepen the understanding and application of preoperative prehabilitation for liver transplant patients in clinical practice, in order to provide theoretical and practical basis for preoperative prehabilitation of liver transplant patients and improve their prognosis.
4.Research on erythrocyte-liposome drug delivery system for targeted therapy of lung metastatic triple-negative breast cancer
Xiang LI ; Xunyi YOU ; Xiaocheng LI ; Hong WANG ; Rui ZHONG ; Jiaxin LIU ; Limin CHEN ; Ye CAO
Chinese Journal of Blood Transfusion 2026;39(2):180-187
Objective: To prepare the erythrocyte-liposome drug delivery system to enhance the therapeutic effect of drugs on tumors and inhibit tumor metastasis. Methods: This study prepared and characterized paclitaxel (PTX)-plerixafor (AMD3100) liposomes (Lips), developed the erythrocyte-liposome drug delivery system, and evaluated its targeting efficiency and therapeutic efficacy through a series of in vitro cellular and in vivo animal experiments. Results: The particle size of PTX-AMD-Lips was (186.4±0.83) nm. Drug encapsulation efficiency of PTX-AMD-Lips was (75.50±5.27)% for PTX and (88.31±2.45)% for AMD. The Binding efficiency between RBC and liposomes in the drug delivery system was (69.93±2.55)%. Vitro cellular experiments revealed that PTX-AMD-Lips significantly inhibited tumor cell migration. In vivo animal experiments, the erythrocyte-liposome drug delivery system significantly increased drug accumulation in the lungs. At the experimental endpoint, the quantitative fluorescence signal of tumor size measured (4.04±0.44)×10
for the PTX-Lips group, and (5.14±3.40)×10
for the RBC-PTX-AMD-Lips group. Conclusion: The erythrocyte-liposome drug delivery system could enhance the lung-specific targeting capability of liposomes, kill tumor cells and suppress further metastasis effectively.
5.Protective effect of the active component DMDD from Averrhoa carambola root on myocardial injury in diabetic mice and its correlation with the NCOA4/FTH1/ATG8 axis
Yongxin CHEN ; Yuxuan LI ; Kailei GU ; Jiajun YOU ; Xiaohan SUN ; Jing MA ; Yanping ZHOU ; Xiaojie WEI
China Pharmacy 2026;37(9):1141-1147
OBJECTIVE To investigate the protective effect of 2-dodecyl-6-methoxy-2,5-diene-1,4-cyclohexanedione (DMDD), an active component from Averrhoa carambola root, on myocardial injury in diabetic mice based on the nuclear receptor coactivator 4/ferritin heavy chain 1/autophagy-related protein 8 (NCOA4/FTH1/ATG8) axis. METHODS The successfully modeled diabetic mice were randomly divided into model group and DMDD low-, medium-, and high-dose (12.5, 25, 50 mg/kg) groups, while an additional non-modeled control group was established, with 6 mice in each group. Each group received the corresponding drug solution or an equal volume of normal saline intragastically once daily for 21 consecutive days. After the administration, the levels of fasting blood glucose (FBG), serum lactate dehydrogenase (LDH), and creatine kinase isoenzyme MB (CK-MB) were measured. Myocardial pathological changes, degree of fibrosis, and myocardial cell ultrastructure were observed. Myocardial cell death index and NCOA4 protein positive index were detected. The protein expression levels of NCOA4, FTH1, ATG8, solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4) in cardiac tissue were measured. RESULTS Compared with model group, each DMDD group showed significant alleviation of cardiac pathological injury and varying degrees of improvement in the myocardial cell ultrastructure. The FBG and serum LDH and CK-MB levels, the myocardial cell death index and NCOA4 protein positive index,the protein expression levels of NCOA4, FTH1, and ATG8 in cardiac tissue were significantly decreased ( P <0.001), while the protein expression levels of SLC7A11 and GPX4 were significantly increased ( P <0.001). CONCLUSIONS DMDD can reduce blood glucose levels, alleviate myocardial histopathological injury, and inhibit cell death in diabetic mice. The mechanism is associated with inhibiting excessive activation of the NCOA4/FTH1/ATG8 axis and reducing ferritinophagy.
6.Traditional Chinese Medicine Regulates AMPK Signaling Pathway to Prevent and Treat Non-alcoholic Fatty Liver Disease: A Review
Lijuan DAN ; Shuanglan CHEN ; Tianyuan WANG ; Xiaojie YOU ; Xiuyan LI ; Hongfei SONG ; Dong WANG ; Jie MU ; Qiao LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(14):133-143
Non-alcoholic fatty liver disease (NAFLD) is one of the most prevalent forms of liver diseases globally. Its progression can lead to cirrhosis and end-stage liver disease, and there is currently a lack of effective pharmacological treatments. Adenosine monophosphate-activated protein kinase (AMPK), as a regulatory hub for maintaining cellular energy homeostasis, can coordinate key cellular processes such as adipogenesis, glucose metabolism, and mitochondrial functions. Its activation exerts metabolic regulatory effects through pathways including inhibiting lipogenesis, enhancing mitochondrial β-oxidation, regulating inflammation and oxidative stress, and promoting autophagy. Accordingly, AMPK emerges as a potential target for the prevention and treatment of NAFLD. Traditional Chinese Medicine (TCM), with low toxicity, high accessibility, and multi-component, multi-target synergistic effects, has demonstrated unique value in NAFLD treatment, particularly showing notable advantages in regulating the AMPK signaling pathway. Sichuan is known as the treasure house of TCM, and the active components of its authentic medicinal materials such as Coptidis Rhizoma not only reflect regional characteristics in AMPK signaling regulation but also form a multi-level metabolic regulatory network through crosstalk with pathways such as sirtuin 1 (SIRT1) and peroxisome proliferator-activated receptor α (PPARα). They can achieve specific regulation by directly activating AMPK and modulating upstream and downstream targets, exerting prominent effects in ameliorating hepatic steatosis and inflammation. This study systematically reviews the research findings on TCM for the prevention and treatment of NAFLD over the past five years, elaborating the mechanisms by which TCM treats NAFLD through regulating the AMPK signaling pathway. It aims to provide new perspectives and references for clinical diagnosis and treatment, basic research, and drug development.
7.Characteristics of hearing loss among noise-exposed workers in the lithium battery manufacturing industry
Yunqiang XU ; Chunnian YOU ; Rongguang LI ; Huandi CHEN ; Yongxiang TANG ; Jijun GUO ; Huanwen TANG
China Occupational Medicine 2026;53(2):223-226
Objective To analyze the characteristics of hearing loss at different frequencies among noise-exposed workers in a lithium battery manufacturing enterprise. Methods A total of 1 954 noise-exposed workers from a large lithium battery manufacturing enterprise were selected as the study subjects using the judgmental sampling method. Pure-tone audiometry, individual noise exposure level monitoring, and workplace noise intensity measurement were conducted. Results The overall detection rate of hearing loss among the study subjects was 39.0%. The detection rates of unilateral and bilateral hearing loss were 21.0% (410/1 954) and 18.0% (352/1 954), respectively. The detection rate of hearing loss in the right ear was higher than that in the left ear (30.1% vs 26.9%, P<0.05). The detection rates of elevated hearing thresholds at high frequencies and speech frequencies were 38.8% and 1.1%, respectively. Comparisons of the detection rates of elevated hearing thresholds across different frequencies between the left and right ears showed significant differences (all P<0.01); specifically, the detection rate at 4.0 kHz in the right ear was higher than that in the left ear (P<0.01). The detection rates of elevated hearing thresholds at 2.0, 4.0, and 6.0 kHz increased with longer duration of noise exposure (all P<0.05). Except at 1.0 kHz, the detection rates of elevated hearing thresholds at 0.5, 2.0, 3.0, 4.0, and 6.0 kHz showed increasing trends with age (all P<0.05). Conclusion Hearing loss among noise-exposed workers in the lithium battery manufacturing industry is predominant in the high-frequency type, with the highest sensitivity at 4.0 kHz and greater susceptibility in the right ear. The detection rate of high frequency hearing loss increases with longer noise exposure duration and advacing age. Health surveillance should focus on workers with longer noise exposure duration and older age. Noise control measures should be strengthened.
8.Zishen Tiaogan Prescription Treats Diminished Ovarian Reserve in Rats via Keap1/Nrf2/HO-1 Signaling Pathway
Zhongtong LI ; Yaping ZHANG ; Chen YOU ; Qingqing LI ; Yingjie WANG ; Siwen OU ; Taomei XUE ; Chuqi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):72-80
ObjectiveTo observe the effect of Zishen Tiaogan prescription on the oxidative stress injury in the rat model of diminished ovarian reserve (DOR) and explore the role of the Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor E2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway. MethodsForty-eight female SD rats were randomly assigned into a normal group (n=12) and a modeling group (n=36). The rats in the modeling group received subcutaneous injection of galactose (350 mg·kg-1) combined with immobilization stress daily. After 28 days of modeling, 6 rats in the normal group and 6 rats in the modeling group were sacrificed to examine the modeling results. The successfully modeled rats were assigned into model, estradiol valerate (0.09 mg·kg-1), and low-, medium-, and high-dose (6.39, 12.78, 25.56 g·kg-1, respectively) Zishen Tiaogan prescription groups. The intervention lasted for 4 weeks with 6 animals per group. Hematoxylin-eosin staining was used to observe the estrous cycle and the pathological changes in the ovarian tissue. The ovarian index was calculated. Enzyme-linked immunosorbent assay was employed to measure the serum levels of sex hormones and oxidative stress-related indexes. Western blot and real-time PCR were employed to determine the protein and mRNA levels, respectively, of Nrf2, Keap1 and HO-1 in the ovarian tissue. The positive expression of superoxide dismutase 2 (SOD2) in the ovarian tissue was detected by immunohistochemistry (IHC). ResultsCompared with the normal group, the model group showed reduced follicles in the ovary, loose arrangement of the follicle granule layer, declined levels of anti-Mullerian hormone (AMH) and estradiol (E2) in the serum, elevated levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) (P<0.01), lowered levels of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) (P<0.01), and increased accumulation of malondialdehyde (MDA) (P<0.01). In addition, the modeling led to up-regulated protein and mRNA levels of Keap1 (P<0.01), the expression of Nrf2 and HO-1 protein was significantly decreased (P<0.01), the mRNA expression of Nrf2 was significantly decreased (P<0.05), the mRNA expression of HO-1 was significantly decreased (P<0.01), in the ovarian tissue. Compared with model group, the estradiol valerate and low-, medium-, and high-dose Zishen Tiaogan prescription groups showed increases in the ovarian index (P<0.01) and serum E2 and AMH levels (P<0.01), declined levels of FSH and LH (P<0.01), increased follicles in the ovary, elevated levels of SOD, CAT, and GSH, and reduced accumulation of MDA (P<0.05, P<0.01). Furthermore, these groups showcased down-regulated protein and mRNA levels of Keap1 (P<0.01), the expression of Nrf2 protein was significantly increased (P<0.01), the expression level of HO-1 protein was increased (P<0.05,P<0.01), and increased positive expression of SOD2 (P<0.01). ConclusionZishen Tiaogan prescription can regulate the serum levels of hormones, down-regulate the expression of Keap1, up-regulate the expression of Nrf2, HO-1, and SOD2, enhance the antioxidant capacity, and reduce the peroxidation damage in the ovarian tissue to improve the ovarian reserve function in the rat model of DOR. High-dose Zishen Tiaogan prescription demonstrated the best effect and the mechanism is associated with the regulation of the Keap1/Nrf2/HO-1 pathway.
9.Zishen Tiaogan Prescription Treats Diminished Ovarian Reserve in Rats via Keap1/Nrf2/HO-1 Signaling Pathway
Zhongtong LI ; Yaping ZHANG ; Chen YOU ; Qingqing LI ; Yingjie WANG ; Siwen OU ; Taomei XUE ; Chuqi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):72-80
ObjectiveTo observe the effect of Zishen Tiaogan prescription on the oxidative stress injury in the rat model of diminished ovarian reserve (DOR) and explore the role of the Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor E2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway. MethodsForty-eight female SD rats were randomly assigned into a normal group (n=12) and a modeling group (n=36). The rats in the modeling group received subcutaneous injection of galactose (350 mg·kg-1) combined with immobilization stress daily. After 28 days of modeling, 6 rats in the normal group and 6 rats in the modeling group were sacrificed to examine the modeling results. The successfully modeled rats were assigned into model, estradiol valerate (0.09 mg·kg-1), and low-, medium-, and high-dose (6.39, 12.78, 25.56 g·kg-1, respectively) Zishen Tiaogan prescription groups. The intervention lasted for 4 weeks with 6 animals per group. Hematoxylin-eosin staining was used to observe the estrous cycle and the pathological changes in the ovarian tissue. The ovarian index was calculated. Enzyme-linked immunosorbent assay was employed to measure the serum levels of sex hormones and oxidative stress-related indexes. Western blot and real-time PCR were employed to determine the protein and mRNA levels, respectively, of Nrf2, Keap1 and HO-1 in the ovarian tissue. The positive expression of superoxide dismutase 2 (SOD2) in the ovarian tissue was detected by immunohistochemistry (IHC). ResultsCompared with the normal group, the model group showed reduced follicles in the ovary, loose arrangement of the follicle granule layer, declined levels of anti-Mullerian hormone (AMH) and estradiol (E2) in the serum, elevated levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) (P<0.01), lowered levels of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) (P<0.01), and increased accumulation of malondialdehyde (MDA) (P<0.01). In addition, the modeling led to up-regulated protein and mRNA levels of Keap1 (P<0.01), the expression of Nrf2 and HO-1 protein was significantly decreased (P<0.01), the mRNA expression of Nrf2 was significantly decreased (P<0.05), the mRNA expression of HO-1 was significantly decreased (P<0.01), in the ovarian tissue. Compared with model group, the estradiol valerate and low-, medium-, and high-dose Zishen Tiaogan prescription groups showed increases in the ovarian index (P<0.01) and serum E2 and AMH levels (P<0.01), declined levels of FSH and LH (P<0.01), increased follicles in the ovary, elevated levels of SOD, CAT, and GSH, and reduced accumulation of MDA (P<0.05, P<0.01). Furthermore, these groups showcased down-regulated protein and mRNA levels of Keap1 (P<0.01), the expression of Nrf2 protein was significantly increased (P<0.01), the expression level of HO-1 protein was increased (P<0.05,P<0.01), and increased positive expression of SOD2 (P<0.01). ConclusionZishen Tiaogan prescription can regulate the serum levels of hormones, down-regulate the expression of Keap1, up-regulate the expression of Nrf2, HO-1, and SOD2, enhance the antioxidant capacity, and reduce the peroxidation damage in the ovarian tissue to improve the ovarian reserve function in the rat model of DOR. High-dose Zishen Tiaogan prescription demonstrated the best effect and the mechanism is associated with the regulation of the Keap1/Nrf2/HO-1 pathway.
10.Quality assessment of guidelines/consensuses on traditional Chinese medicine/integrated traditional Chinese and Western medicine diagnosis and treatment of nonalcoholic fatty liver disease
Ruimin JIAO ; Jingjie ZHAO ; Juanjuan LI ; Wei CHEN ; Chaoru HAN ; Li LI ; Chunjun XU ; Hong YOU
Journal of Clinical Hepatology 2025;41(3):446-452
ObjectiveTo evaluate the methodological quality and reporting quality of published guidelines/consensuses on traditional Chinese medicine (TCM)/integrated traditional Chinese and Western medicine diagnosis and treatment of nonalcoholic fatty liver disease (NAFLD), and to provide a basis for formulating guidelines/consensuses on TCM/integrated traditional Chinese and Western medicine diagnosis and treatment of NAFLD in the future. MethodsDatabases including PubMed, Embase, Web of Science, CNKI, Wanfang Data, and CBM and the websites of China Association of Chinese Medicine and China Association of Integrative Medicine were searched for related articles published up to September 1, 2024. Two clinical researchers independently assessed the methodological quality and reporting quality of the guidelines/consensuses on TCM/integrated traditional Chinese and Western medicine diagnosis and treatment of NAFLD by using Appraisal of Guidelines for Research and Evaluation Ⅱ (AGREE Ⅱ) and Reporting Items for Practice Guidelines in Healthcare (RIGHT). ResultsA total of nine guidelines/consensuses were included after literature screening, with four guidelines and five expert consensuses. The scores of different domains assessed by AGREE Ⅱ for the nine guidelines/consensuses were as follows: scope and purpose (47.1%), stakeholder involvement (41.0%), rigor of development (21.6%), clarity of presentation (40.2%), applicability (19.0%), and editorial independence (19.6%). The recommendation level of the articles was B level (recommended after revision) for four articles and C level (not recommended) for five articles. The RIGHT assessment showed high reporting rates for “Basic Information” and “Background”, while other areas needed to be improved. Currently, there was no international standard for the guidelines/consensuses on TCM/integrated traditional Chinese and Western medicine diagnosis and treatment of NAFLD, and the quality of these guidelines/consensuses needed to be enhanced to ensure comprehensiveness and credibility. ConclusionThere is still potential for improving the quality of guidelines/consensuses on TCM/integrated traditional Chinese and Western medicine diagnosis and treatment of NAFLD, and AGREE Ⅱ and RIGHT checklists should be strictly followed to ensure the fairness, scientific rigor, and transparency of these guidelines/consensuses.

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