1.Mitochondrial Quality Control Regulating Pathogenesis of Sarcopenia and Its Intervention by Traditional Chinese Medicine: A Review
Ting DAI ; Yan CHEN ; Changsheng GUO ; Jing GAO ; Xiaodong FENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(8):279-286
Sarcopenia is a clinical syndrome characterized by a decrease in skeletal muscle strength and quality, often accompanied by adverse outcomes such as falls, loss of function and weakness. The pathogenesis of sarcopenia is complex, and studies have shown that dysfunction due to impaired mitochondrial quality control is an important pathological factor in the occurrence and development. Traditional Chinese medicine(TCM) has been widely favoured for regulating mitochondrial homeostasis and preventing sarcopenia by virtue of its multi-target and multi-pathway advantages. They can play a role in the prevention and treatment of sarcopenia by regulating the mitochondrial quality control system to inhibit the occurrence of mitochondrial oxidative stress, regulate the balance of mitochondrial dynamics, inhibit mitochondrial autophagy, promote mitochondrial biosynthesis, resist the occurrence of mitochondrial apoptosis, and maintain the mitochondrial calcium and protein homeostasis. Based on this, the paper reviewed the relationship between mitochondrial quality control and sarcopenia, as well as the mechanism of TCM in intervening the mitochondrial quality control system to treat sarcopenia, in order to provide a new idea for the prevention and treatment of sarcopenia by TCM and to a theoretical basis for the clinical research on TCM intervention in sarcopenia.
2.Regulation of Immune Function by Exercise-induced Metabolic Remodeling
Hui-Guo WANG ; Gao-Yuan YANG ; Xian-Yan XIE ; Yu WANG ; Zi-Yan LI ; Lin ZHU
Progress in Biochemistry and Biophysics 2025;52(6):1574-1586
Exercise-induced metabolic remodeling is a fundamental adaptive process whereby the body reorganizes systemic and cellular metabolism to meet the dynamic energy demands posed by physical activity. Emerging evidence reveals that such remodeling not only enhances energy homeostasis but also profoundly influences immune function through complex molecular interactions involving glucose, lipid, and protein metabolism. This review presents an in-depth synthesis of recent advances, elucidating how exercise modulates immune regulation via metabolic reprogramming, highlighting key molecular mechanisms, immune-metabolic signaling axes, and the authors’ academic perspective on the integrated “exercise-metabolism-immunity” network. In the domain of glucose metabolism, regular exercise improves insulin sensitivity and reduces hyperglycemia, thereby attenuating glucose toxicity-induced immune dysfunction. It suppresses the formation of advanced glycation end-products (AGEs) and interrupts the AGEs-RAGE-inflammation positive feedback loop in innate and adaptive immune cells. Importantly, exercise-induced lactate, traditionally viewed as a metabolic byproduct, is now recognized as an active immunomodulatory molecule. At high concentrations, lactate can suppress immune function through pH-mediated effects and GPR81 receptor activation. At physiological levels, it supports regulatory T cell survival, promotes macrophage M2 polarization, and modulates gene expression via histone lactylation. Additionally, key metabolic regulators such as AMPK and mTOR coordinate immune cell energy balance and phenotype; exercise activates the AMPK-mTOR axis to favor anti-inflammatory immune cell profiles. Simultaneously, hypoxia-inducible factor-1α (HIF-1α) is transiently activated during exercise, driving glycolytic reprogramming in T cells and macrophages, and shaping the immune landscape. In lipid metabolism, exercise alleviates adipose tissue inflammation by reducing fat mass and reshaping the immune microenvironment. It promotes the polarization of adipose tissue macrophages from a pro-inflammatory M1 phenotype to an anti-inflammatory M2 phenotype. Moreover, exercise alters the secretion profile of adipokines—raising adiponectin levels while reducing leptin and resistin—thereby influencing systemic immune balance. At the circulatory level, exercise improves lipid profiles by lowering pro-inflammatory free fatty acids (particularly saturated fatty acids) and triglycerides, while enhancing high-density lipoprotein (HDL) function, which has immunoregulatory properties such as endotoxin neutralization and macrophage cholesterol efflux. Regarding protein metabolism, exercise triggers the expression of heat shock proteins (HSPs) that act as intracellular chaperones and extracellular immune signals. Exercise also promotes the secretion of myokines (e.g., IL-6, IL-15, irisin, FGF21) from skeletal muscle, which modulate immune responses, facilitate T cell and macrophage function, and support immunological memory. Furthermore, exercise reshapes amino acid metabolism, particularly of glutamine, arginine, and branched-chain amino acids (BCAAs), thereby influencing immune cell proliferation, biosynthesis, and signaling. Leucine-mTORC1 signaling plays a key role in T cell fate, while arginine metabolism governs macrophage polarization and T cell activation. In summary, this review underscores the complex, bidirectional relationship between exercise and immune function, orchestrated through metabolic remodeling. Future research should focus on causative links among specific metabolites, signaling pathways, and immune phenotypes, as well as explore the epigenetic consequences of exercise-induced metabolic shifts. This integrated perspective advances understanding of exercise as a non-pharmacological intervention for immune regulation and offers theoretical foundations for individualized exercise prescriptions in health and disease contexts.
3.The Regulatory Role of Glucose Transporter 1 on the Function of Human Umbilical Vein Endothelial Cells Under Ischemia-hypoxic Conditions
Meiling LI ; Siqi GAO ; Zhefu LIU ; Huanyan LIAO ; Fanmao LIU ; Wenhao XIA ; Jun GUO ; Yan LI
Journal of Sun Yat-sen University(Medical Sciences) 2025;46(3):444-455
Abstract: ObjectiveThe study aims to explore the effects and regulatory roles of glucose transporter 1 (GLUT1) on the proliferation, migration, adhesion, and angiogenesis of human umbilical vein endothelial cells (HUVECs) under ischemia-hypoxic conditions. MethodsIn vitro experiments were conducted to subject HUVECs to an ischemia-hypoxic-mimicking environment (1% O2, 5% CO2, 94% N2). The biological characteristics of HUVECs under normoxic and ischemia-hypoxic conditions were compared by assessing cell viability, proliferation capacity, and examining the expression changes of GLUT1, HIF-1α, and VEGFA proteins under ischemia-hypoxia using Western blot technology. Further, GLUT1 was overexpressed using plasmid transfection and the proliferation, migration, adhesion, and angiogenic capabilities of HUVECs were evaluated through scratch assays, cell adhesion assays, and tube formation assays. Mitochondrial morphological changes were observed by transmission electron microscopy,and oxygen consumption rate (OCR) was detected by Seahorse metabolic analyzer to evaluate mitochondrial function. ResultsCompared with normoxic conditions, the ischemia-hypoxic environment significantly inhibited the proliferation, cell viability, migration, and adhesion capabilities of HUVECs and impaired their angiogenic potential. The expression levels of GLUT1, HIF-1α and VEGFA proteins were also markedly reduced. However, when GLUT1 expression was upregulated, the migration, adhesion, and angiogenic capabilities of HUVECs were significantly improved, and the protein expression levels of HIF-1α, VEGFA and VEGFR were increased. Transmission electron microscopy revealed that ischemic-hypoxia leads to mitochondrial swelling and matrix damage, while GLUT1 overexpression significantly alleviates mitochondrial morphology abnormalities. OCR results suggest that GLUT1 overexpression may enhance oxidative phosphorylation of endothelial cells in ischemic-hypoxic environments to improve energy metabolism. These results suggest that GLUT1 may influence the function and angiogenic potential of HUVECs by regulating glucose metabolism and energy supply. ConclusionsThis study reveals the significant regulatory role of GLUT1 in the function of HUVECs under ischemia-hypoxic conditions, potentially through modulating cellular energy metabolism and signal transduction pathways, thereby affecting cell proliferation, migration, adhesion, and angiogenesis. These findings provide a new perspective on the role of GLUT1 in cardiovascular diseases and may offer potential targets for the development of new therapeutic strategies.
4.Construction of a key technical indicator system for in-hospital treatment and nursing of patients with nuclear radiation injury
Liu LIU ; Bei HOU ; Yanan ZHU ; Lei ZHU ; Yan GAO ; Yingfeng LIANG ; Shanshan GUO
Chinese Journal of Radiological Health 2025;34(4):595-601
Objective To construct a key technical indicator system for in-hospital treatment and nursing of patients with nuclear radiation injury, and provide a basis for the implementation of such treatment and nursing. Methods The draft of the key technical indicator system for in-hospital treatment and nursing of patients with nuclear radiation injury was determined by literature review, case study, and field investigation. The indicators of the system were determined through two rounds of Delphi consultation and using the precedence chart method. According to the criteria of indicator evaluation, the reliability of expert opinions, and the opinions of the research group, the indicators were refined and evaluated. Results Twenty experts were included for two rounds of consultation via mailed inquiries, with a 100% effective response rate in both rounds. The expert authority coefficients were both 0.945, and the Kendall’s W values were 0.347 and 0.448, respectively (P < 0.05). Following the expert consultations, 1 indicator was deleted, 12 indicators were added, and 6 indicators were modified. The key technical indicator system for in-hospital treatment and nursing of patients with nuclear radiation injury established in this study included 4 first-level indicators, 17 second-level indicators, and 73 third-level indicators. The means of importance assignment for all indicators were > 4.00, and the coefficients of variation were < 0.25. Conclusion The key technical indicator system for in-hospital treatment and nursing of patients with nuclear radiation injury established in this study is scientifically rigorous and practically grounded. The indicators demonstrate strong professional relevance and provide important guidance for in-hospital treatment and nursing of patients with nuclear radiation injury.
5.Application of a digital chylous plasma assessment device in the determination of chylous plasma
Lingyue GUO ; Caina LI ; Hongyan GAO ; Wei WEI ; Ping ZHANG ; Yan LIU ; Yajie WANG ; Weidong HE
Chinese Journal of Blood Transfusion 2025;38(9):1236-1241
Objective: To develop a simple digital chylous plasma device and validate its ability to accurately, standardly, and non-destructively determine chylous plasma in blood banks and clinical transfusions in hospitals. Methods: A digital chylous plasma assessment device was designed and manufactured. This device was used to measure the chylous degrees of chylous plasma samples before freezing, after freeze-thawing, before viral inactivation, and after viral inactivation. The measured chylosity index values were categorized according to the requirements specified in Appendix A of the Chinese national standard GB 18469-2001 "Quality Requirements for Whole Blood and Blood Components". This process established a digital standard for chylous plasma, enabling the identification of severe, moderate and mild chylous plasma, and non-chylous plasma. Results: The initial simple product of the digital chylous assessment device was successfully designed and manufactured. There was no significant difference in the degree of chylous plasma between pre-freezing 468.11±217.73 lux and post-thawing 538.91±273.39 lux of chylous plasma (P>0.05), or between pre-viral inactivation 858.33±387.79 lux and post-viral inactivation 928.33±166.51 lux of chylous plasma (P>0.05). The median of chylous degree values for plasma chylous index grades 0 to 6 were 45 lux, 250 lux, 620 lux, 835 lux, 1 130 lux, 1 390 lux, and 1 700 lux, respectively. The defined cutoff values/ranges for the chylous degree values corresponding to plasma chylous index grade 0 to 6 were ≤125 lux, 126-465 lux, 466-740 lux, 741-1 000 lux, 1 001-1 233 lux, 1 234-1 560 lux, and ≥1 561 lux. Conclusion: This study successfully developed the initial product of the digital chylous device and established digital standards for classifying chylous plasma. The device demonstrates the potential to meet the needs for assessment of chylous plasma in both blood banks and clinical transfusions in hospitals, thereby promoting the development and application of standardized, non-destructive chylous plasma assessment technology.
6.Nutritional status and its related factors among primary and secondary school students in Beijing City
WANG Yan, SUN Bingjie, ZHAO Hai, XU Huiyu, GAO Ruoyi, LUO Huijuan, GUO Xin
Chinese Journal of School Health 2024;45(2):188-192
Objective:
To assess the nutritional status of primary and secondary school students in Beijing City and to analyze the related factors, so as to provide a scientific basis for improving the nutritional status of primary and secondary school students in a targeted manner.
Methods:
Based on the 2021 Beijing Student Common Diseases and Health Influencing Factors Surveillance Project, a stratified random cluster sampling method was used to conduct a physical examination and questionnaire survey on 25 487 primary and secondary school students from September to November 2021. The Chi square test was used for comparison of nutritional status detection rates, and disordered multi classification Logistic regression analysis was used to explore the factors associated with students nutritional status.
Results:
The detection rates of malnutrition, overweight and obesity among primary and secondary school students in Beijing City were 4.7%, 18.0% and 23.8% respectively. The detection rates of malnutrition, overweight and obesity were higher among male students (5.1%, 20.4%, 29.7%) than female students (4.2%, 15.5%, 17.4%) ( χ 2= 12.23, 101.71, 526.99, P <0.01). The detection rate of obesity was higher in the suburbs than urban areas(26.6%, 19.8%), and the detection rate of malnutrition was lower in the suburbs than urban areas (4.2%,5.5%)( χ 2=157.25, 23.61, P <0.01). The results of disordered multi classification Logistic regression showed that the related factors for malnutrition, overweight and obesity were gender, residence, moderate to vigorous exercise ≥60 min per day and lack of sleep( OR =1.70, 1.88,2.48; 1.14, 0.87, 0.67; 0.85, 0.92, 0.81 ; 0.83, 1.08, 1.07); frequency of fried food intake daily was a related factor for overweight ( OR =0.70); whether eating breakfast daily or not was a related factor for overweight and obesity ( OR =0.91, 0.84); academic level (middle and high school) was a related factor for malnutrition and obesity ( OR =1.38, 1.37; 0.77, 1.40)( P <0.05).
Conclusions
The problem of overweight and obesity among primary and secondary school students in Beijing City continues to be serious, especially among boys and suburban areas. It is recommended that society, schools, families and individuals should work together to improve the nutritional status of primary and secondary school students by adopting a graded and classified approach.
7.Wenxiao Powder Alleviates Depression by Promoting Neurogenesis via BDNF/TrkB/ERK/CREB Signaling Pathway
Duo ZHANG ; Xiuhui GUO ; Yucheng LI ; Yunli GAO ; Ming BAI ; Xiangli YAN ; Erping XU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(8):100-108
ObjectiveTo decipher the mechanism of Wenxiao powder in alleviating corticosterone-induced depression-like behaviors in mice. MethodMale ICR mice were randomized into normal, model, paroxetine (20 mg·kg-1), and low- and high-dose (3.27, 6.54 g·kg-1, respectively) Wenxiao powder groups. The mice in normal and model groups received equal volume of saline. Other groups except the normal group were injected with corticosterone subcutaneously 0.5 h after gavage to induce depression. Mice were tested for depression-like behaviors after drug administration. Enzyme-linked immunosorbent assay (ELISA) was performed to measure the corticosterone content in the serum. Nissl staining was performed to observe the damage of hippocampal neurons. Immunofluorescence staining was employed to observe the expression of double cortin (DCX) in the dentate gyrus (DG) of the hippocampus. Western blot was employed to determine the expression of proteins in the brain-derived neurotrophic factor (BDNF)/tyrosine kinase receptor B (TrkB)/extracellular signal-regulated kinase (ERK)/cAMP-response element-binding protein (CREB) pathway in the hippocampus. ResultCompared with the normal group, the model group showed decreased sucrose preference rate, increased immobility time in the tail suspension test (P<0.01), and reduced residence time in the central area of the open field and the total movement distance (P<0.05, P<0.01). In addition, the modeling elevated the corticosterone level in the serum (P<0.01), decreased the volume and intensified the nuclear staining of hippocampal neurons in the DG area, reduced the expression of DCX in the DG area, and down-regulated the protein levels of BDNF, phosphorylated (p)-TrkB, p-ERK, and p-CREB in the hippocampus (P<0.05, P<0.01). Compared with the model group, low-dose Wenxiao powder improved the mouse behavivors in the sucrose preference, open field, and tail suspension tests (P<0.05, P<0.01), and high-dose Wenxiao powder improved the behaviors in the sucrose preference and open field tests (P<0.05, P<0.01). In addition, Wenxiao powder lowered the serum corticosterone level (P<0.01) and recovered the structure and morphology of neurons with obvious nuclei and presence of Nissl bodies in the DG area of the hippocampus. Moreover, Wenxiao powder at both doses promoted the expression of DCX in the DG area, and high-dose Wenxiao powder up-regulated the protein levels of BDNF, p-TrkB, p-ERK, and p-CREB in the hippocampus (P<0.05, P<0.01). ConclusionWenxiao powder can alleviate corticosterone-induced depression-like behaviors and promote neurogenesis in mice possibly by activating the BDNF/TrkB/ERK/CREB signaling pathway.
9.Herbal Textual Research on Euryales Semen in Famous Classical Formulas
Zixuan GAO ; Cheng QU ; Hui YAN ; Ling XIA ; Sheng GUO ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):210-217
This paper systematically combed and verified the name, origin, producing area, quality evaluation, harvesting, processing of Euryales Semen in famous classical formulas by consulting relevant ancient materia medica, medical books, prescription books and modern literature. The results showed that Euryales Semen was first collected by materia medica under the name of Jitoushi, and since the Ming dynasty, Qianshi has been used as a proper name and continues to this day, with other aliases such as Yanhuishi. Euryale ferox, a plant of the Nymphaeaceae family, is the same as that used in the past dynasties. However, due to long-term artificial domestication, the varieties vary with the origin, including Beiqian and Suqian. The medicinal part of Euryales Semen is mature seed kernel, its origin of ancient records mainly includes Shandong, Jiangsu, Henan and other places, since the Ming and Qing dynasties, Euryales Semen produced in Suzhou has been highly praised. Since modern times, it has gradually summarized and formed the best quality evaluation method of Euryales Semen with full grains, white cross-section, powdery enough and no broken powder. The harvesting time in the past dynasties was mainly August or in autumn. The main processing methods in the past dynasties included peeling for powder, pounding powder after steaming, drying and frying. Up to now, two mainstream processing methods of cleansing and stir-frying have been formed. Based on the research results, it is recommended that the mature seed kernel of E. ferox be used in famous classical formula Yihuangtang. Combined with the processing requirements of the original formula, it is suggested to refer to the stir-frying method in the general principles of processing of the current edition of Chinese Pharmacopoeia.
10.Active monitoring study of central nervous system adverse drug reactions due to commonly used carbapenems
Jing XIAO ; Hai-Yan LI ; Dai-Hong GUO ; Man ZHU ; Ao GAO ; Peng LI ; Li-Qiang CUI
The Chinese Journal of Clinical Pharmacology 2024;40(17):2562-2566
Objective To obtain the occurrence and clinical characteristics of central nervous system adverse drug reactions(CNS-ADR)associated with three kinds of carbapenems,and to provide reference for clinical drug safety.Methods Based on adverse drug event active surveillance and assessment system-Ⅱ(ADE-ASAS-Ⅱ),retrospective automated monitoring of inpatients using imipenem,meropenem,and biapenem in a tertiary hospital from January 2022 to December 2022 was conducted.The incidence of carbapenem related CNS-ADR was calculated,and the basic conditions,disease conditions,drug use,occurrence time of ADR and symptoms of patients with CNS-ADR were analyzed by descriptive statistics.Results A total of 2 482 patients with 2 709 times of medication were included in this study,and a total of 93 positive cases of CNS-ADR occurred,with an overall incidence of 3.43%for all three medications,3.98%for imipenem,3.51%for meropenem,and 2.78%for biapenem.The indications for the 93 positive cases of CNS-ADR were mainly pulmonary infections(59.13%)and abdominal infections(25.80%);they occurred mostly within 7 days of the administration of the medication;with a variety of clinical manifestations,with anxiety/irritability being the most common,and epilepsy appearing most frequently in severe cases.Co-administration of proton pump inhibitors and cephalosporins accounted for a greater proportion of positive cases,50.54%of positive cases had a history of surgery,and 69.89%of positive cases were associated with electrolyte disturbances.Conclusion Clinical use of carbapenems should be based on the actual situation of the patient to develop an individualised drug regimen,and special attention should be paid to patients with comorbidities of renal disease,electrolyte disorders,and a history of previous surgery and neurological disorders,in order to reduce the risk of the occurrence of CNS-ADR.


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