1.Analysis of Toxicity Characteristics and Rational Drug Use of Polygoni Multiflori Radix
Qiongyi FU ; Yupu QI ; Yu HUAN ; Yagang SONG ; Xiangxiang WU ; Mingsan MIAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):222-231
ObjectivePolygoni Multiflori Radix is a commonly used tonic traditional Chinese medicine (TCM) in clinical practice, but liver injury has often been reported in recent years. Some related preparations containing Polygoni Multiflori Radix have been reported by the National Medical Products Administration many times for the risk of liver injury. This has caused extensive discussion on the potential toxicity of TCM in China and abroad, which has limited the clinical use of Polygoni Multiflori Radix to some extent. To understand the adverse reactions of Polygoni Multiflori Radix, the safe and rational use of Polygoni Multiflori Radix in clinical practice was discussed. MethodsThe pharmacovigilance thought of modern Chinese medicine and the TCM pharmacovigilance system framework of ''identification of poison, use of poison, anti-poison, and detoxification'' were employed to mine the relevant toxicity records, usage and dosage, processing compatibility, and contraindication of taking Polygoni Multiflori Radix in ancient books. The drug safety information of Polygoni Multiflori Radix was summarized by comparing with modern reports. ResultsA total of 74 ancient books related to Polygoni Multiflori Radix were included, suggesting that the toxicity of Polygoni Multiflori Radix was recognized in ancient times. The main chemical components of Polygoni Multiflori Radix had both efficacy and toxicity, and the adverse reactions may be related to long-term use, excessive use, and individual differences. The results showed that the toxic components of Polygoni Multiflori Radix could be reduced by peeling, steaming with black beans, and processing without iron tools. The toxic effects of Polygoni Multiflori Radix could be reduced by the compatibility of Polygoni Multiflori Radix with Poria, Psoraleae Fructus, and Cistanches Herba. ConclusionReasonable dosage, standard processing, correct compatibility, and syndrome differentiation are the key points to standardize the use of Polygoni Multiflori Radix and reduce the incidence of adverse reactions. Clinically, the toxicity classification of TCM should be strengthened, and the susceptible population should be prioritized. The detection indicators and early warning mechanisms should be improved, and precise drug dosage and course of treatment should be guaranteed. These measures can ensure the safe use of Polygoni Multiflori Radix.
2.Analysis of Toxicity Characteristics and Rational Drug Use of Polygoni Multiflori Radix
Qiongyi FU ; Yupu QI ; Yu HUAN ; Yagang SONG ; Xiangxiang WU ; Mingsan MIAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):222-231
ObjectivePolygoni Multiflori Radix is a commonly used tonic traditional Chinese medicine (TCM) in clinical practice, but liver injury has often been reported in recent years. Some related preparations containing Polygoni Multiflori Radix have been reported by the National Medical Products Administration many times for the risk of liver injury. This has caused extensive discussion on the potential toxicity of TCM in China and abroad, which has limited the clinical use of Polygoni Multiflori Radix to some extent. To understand the adverse reactions of Polygoni Multiflori Radix, the safe and rational use of Polygoni Multiflori Radix in clinical practice was discussed. MethodsThe pharmacovigilance thought of modern Chinese medicine and the TCM pharmacovigilance system framework of ''identification of poison, use of poison, anti-poison, and detoxification'' were employed to mine the relevant toxicity records, usage and dosage, processing compatibility, and contraindication of taking Polygoni Multiflori Radix in ancient books. The drug safety information of Polygoni Multiflori Radix was summarized by comparing with modern reports. ResultsA total of 74 ancient books related to Polygoni Multiflori Radix were included, suggesting that the toxicity of Polygoni Multiflori Radix was recognized in ancient times. The main chemical components of Polygoni Multiflori Radix had both efficacy and toxicity, and the adverse reactions may be related to long-term use, excessive use, and individual differences. The results showed that the toxic components of Polygoni Multiflori Radix could be reduced by peeling, steaming with black beans, and processing without iron tools. The toxic effects of Polygoni Multiflori Radix could be reduced by the compatibility of Polygoni Multiflori Radix with Poria, Psoraleae Fructus, and Cistanches Herba. ConclusionReasonable dosage, standard processing, correct compatibility, and syndrome differentiation are the key points to standardize the use of Polygoni Multiflori Radix and reduce the incidence of adverse reactions. Clinically, the toxicity classification of TCM should be strengthened, and the susceptible population should be prioritized. The detection indicators and early warning mechanisms should be improved, and precise drug dosage and course of treatment should be guaranteed. These measures can ensure the safe use of Polygoni Multiflori Radix.
3.Impact of smartphone games on cognitive function in patients with chronic schizophrenia and gender differences
Shipan MIAO ; Jun LI ; Qianqian WANG ; Suqi SONG ; Kai ZHANG
Sichuan Mental Health 2026;39(1):44-49
BackgroundPatients with chronic schizophrenia often suffer from cognitive impairment. Traditional cognitive rehabilitation training has problems such as a single form and poor compliance, making it urgent to develop new cognitive intervention methods. ObjectiveTo explore the intervention effect of smartphone games on the cognitive function of patients with chronic schizophrenia, and to analyze the differences in cognitive function improvement between patients of different genders, in order to provide references for the cognitive function intervention of these patients. MethodsThis study was a prospective cohort study. A total of 30 patients who were hospitalized in the Psychiatry Department of Chaohu Hospital Affiliated to Anhui Medical University from March to October 2021, met the diagnostic criteria for schizophrenia as defined in the International Classification of Diseases, tenth edition (ICD-10), and had a disease duration of above 5 years, were selected as the research subjects. All patients received smartphone game intervention for 12 weeks, 5 times a week, each session lasting 1 hour, in addition to conventional antipsychotic drug treatment. At the baseline and at 3, 6, 9, and 12 weeks of the intervention, the cognitive function was evaluated using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), the Positive and Negative Syndrome Scale (PANSS) was used to assess mental symptoms, and the Problematic Mobile Gaming Questionnaire (PMGQ) was used to assess addiction symptoms. ResultsA total of 26 patients (86.67%) completed the study, including 13 females and 13 males. The time effects, group effects, and interaction effect between time and group for the immediate memory factor score of RBANS in the female group and the male group were all statistically significant (F=36.682, 5.712, 3.090, P<0.05 or 0.01), and the time effects and group effects for the verbal and delayed memory factors as well as the total score in both groups were also statistically significant (F=3.841, 6.149, 15.372, P<0.05 or 0.01). The time effects and group effects of the total score of PANSS in both groups had no statistical significance (F=2.041, 0.623, P>0.05 for both), and the interaction effect between time and group was statistically significant (F=5.728, P<0.01). The time effects, group effects, and interaction effect of the total score of PMGQ in both groups were all without statistical significance (F=2.672, 0.166, 0.642, P>0.05 for both). ConclusionSmartphone game intervention may help improve the cognitive function of patients with chronic schizophrenia (especially immediate memory, verbal function, and delayed memory), and the benefits are greater for female patients. The smartphone game intervention did not induce game addiction, but no significant improvement in psychotic symptoms was observed. [Funded by Excellent Young Talents Support Program of Anhui Provincial Department of Education (number, gxyqZD2022022); www.chictr.org.cn number, ChiCTR2100044113]
4.Epidemiological characteristics of herpes zoster outpatient cases in Jinshan District, Shanghai,2024
Jingjing WANG ; Jie ZHOU ; Miao MA ; Yueyue LIU ; Canlei SONG
Journal of Public Health and Preventive Medicine 2026;37(3):44-47
Objective To investigate the incidence and epidemiological characteristics of herpes zoster in Jinshan District, Shanghai, in 2024, and to provide a scientific basis for the development of prevention and control measures. Methods The visit information of herpes zoster cases in 2024 was collected through the outpatient diagnosis and treatment system of medical institutions in Jinshan District. Descriptive epidemiological methods were used for statistical analysis. Results In 2024, there were a total of 7 270 cases of herpes zoster in Jinshan District, including 3 398 male cases and 3 872 female cases. The incidence rate among females was higher than that among males (χ2 =125.25, P< 0.001). Cases occurred in all age groups, with an average age of 59.58 ± 15.28 years. The highest proportion of cases was in the 50-year-old group (21.99%) and the 60-year-old group (25.45%). The incidence rate increased with age (χ2 = 4 505.99, P< 0.001). The main departments for consultation were dermatology, pain clinics, and neurology. The main clinical diagnoses were herpes zoster without complications, postherpetic neuralgia, and incomplete herpes zoster. Among the cases, 3,102 patients had follow-up visits, and the number of follow-up visits increased with age. From 2020 to 2024, a total of 2,032 doses of herpes zoster vaccine were administered in the district, with the highest vaccination rate in the 50-year-old group (54.48%). Conclusion The majority of herpes zoster cases in Jinshan District are concentrated in the 50- and 60-year-old groups. The main complication is postherpetic neuralgia. The incidence rate and number of follow-up visits increase with age. The vaccination rate of herpes zoster vaccine in the entire district is relatively low. It is recommended to enhance monitoring and analysis, carry out health education for key populations (aged 50 years old and above), and promote vaccination and other preventive and control measures.
5.Mediating role of organizational silence between change fatigue and job crafting among clinical nurses
Geli JIANG ; Yuanyuan SONG ; Jing WANG ; Miao MA
China Occupational Medicine 2026;53(2):186-191
Objective To investigate the status of job crafting, change fatigue, and organizational silence among clinical nurses, and to examine the mediating role of organizational silence in the relationship between change fatigue and job crafting. Methods A total of 500 clinical nurses from a tertiary grade A hospital in Shaanxi Province were selected as study participants using the convenience sampling method. The level of job crafting, change fatigue, and organizational silence was assessed using the Job Crafting Scale, Change Fatigue Scale, and Organizational Silence Scale, and the mediating effect of organizational silence between change fatigue and job crafting was examined by the Bootstrap method among clinical nurses. Results The mean scores of job crafting, change fatigue, and organizational silence among clinical nurses were (59.0±11.7), (22.9±5.6), and (81.3±8.5), respectively. Multiple linear regression analysis showed that higher education level, longer working years, and more severe change fatigue were associated with higher job crafting scores among clinical nurses (all P<0.05). A higher level of organizational silence was related to lower job crafting scores (P<0.01). Mediation analysis showed that organizational silence was negatively associated with both change fatigue and job crafting among clinical nurses (all P<0.01), while change fatigue was positively associated with job crafting (P<0.01). Organizational silence partially mediated the relationship between change fatigue and job crafting. The direct effect of change fatigue on job crafting was 0.26, and the indirect effect of organizational silence was 0.70, accounting for 72.8% of the total effect. Conclusion Organizational silence mediates the relationship between change fatigue and job crafting. Reducing organizational silence may help enhance the level of job crafting among nurses.
6.Immune checkpoint inhibitor-associated encephalitis in a small-cell lung cancer patient
Miao LI ; Qunying HONG ; Yuanlin SONG ; Sulan WEI ; Nuo XU
Chinese Journal of Clinical Medicine 2026;33(4):729-735
The neurotoxicity related to immune checkpoint inhibitors (ICI) is rare, and the clinical experience remains limited. This paper reported an elderly male patient with advanced small cell lung cancer (SCLC). Following two circles of chemotherapy combined with immunotherapy (serplulimab, 200 mg), the patient developed fatigue, cognitive impairment, motor apraxia, and ataxia. Based on the examination of blood neurotransmitters and brain magnetic resonance imaging, the patient was diagnosed with ICI-associated encephalitis, and his symptoms improved after hormone treatment.
7.Distribution and epidemiological characteristics of single and mixed viral infections in patients with acute respiratory tract infection
Langlang LIU ; Tiao BAI ; Yanhu WEI ; Hao WANG ; Shaoting SONG ; Chanchan MIAO
Journal of Public Health and Preventive Medicine 2026;37(5):77-81
Objective To explore the distribution and epidemiological characteristics of single virus infection and mixed virus infection in patients with acute respiratory tract infection. Methods A retrospective study was conducted on 320 patients with acute respiratory tract infections who visited sentinel hospitals from January 2022 to January 2025. All patients underwent common virus detection and atypical pathogen human rhinovirus (HRV) detection. Results In this study, there were 204 patients (71.83%) with single virus infection, including 87 cases (42.65%) of atypical pathogen human rhinovirus (HRV) infection, 28 cases (13.73%) of influenza A virus infection, 35 cases (17.16%) of influenza B virus infection, 21 cases (10.29%) of respiratory syncytial virus (RSV) infection, 17 cases (8.33%) of adenovirus (ADV) infection, and 16 cases (7.84%) of parainfluenza virus (PIV) infection. There were 80 patients (28.17%) with mixed virus infection, including 57 cases (71.25%) of influenza virus+RSV mixed infection and 23 cases (28.75%) of ADV+PIV mixed infection. There were significant differences in the detection rates of HRV, RSV, influenza virus+RSV, and ADV+PIV among different age groups (P<0.05). The detection rates of HRV, RSV single and mixed virus were high in age of 0-5 years old, while the detection rate of ADV was high in age of ≥60 years old. Statistical differences were found in the detection rates of HRV, influenza A virus, influenza B virus, ADV, influenza virus+RSV, and ADV+PIV among different seasons (P<0.05). The detection rates of HRV, influenza A virus, influenza B virus, and RSV were high in spring and winter, the detection rates of ADV and ADV+PIV were high in summer, the detection rate of PIV was high in spring and autumn, and the detection rate of influenza virus+RSV was high in winter. There were no statistical differences in the detection rates of viral pathogens among patients with different genders (P>0.05). Conclusion Acute respiratory tract infection is mainly caused by single virus infection (HRV is the most common). Mixed infection is more common in influenza virus with RSV. Children aged 0-5 years old and elderly people over 60 years old are susceptible populations. Children have a higher risk of mixed infection, and the epidemic peak is concentrated in winter and spring.
8.Effects of Electrothermal Acupuncture on the HIF-1α/S1P/S1PR3 Pathway and Macrophage Polarization in Epididymal White Adipose Tissue of Obese Model Mice
Xiaobo GE ; Yuanyuan LI ; Jiangyan WEI ; Limin NIE ; Xin YANG ; Quan MIAO ; Mina WANG ; Yawei XI ; Luopeng ZHAO ; Yine SONG ; Xinru SUN ; Lu LIU ; Bin LI
Journal of Traditional Chinese Medicine 2026;67(20):2227-2235
ObjectiveTo investigate the mechanism underlying the weight loss effect of electrothermal acupuncture (ETA) in diet-induced obese (DIO) model mice based on the hypoxia-inducible factor-1α (HIF-1α)/sphingosine-1-phosphate (S1P)sphingosine-1-phosphate receptor 3 (S1PR3) signaling pathway-mediated macrophage polarization. MethodsAn obesity mouse model was established by continuously feeding at a high-fat diet (HFD) for 8 weeks. Twenty successfully modeled obese mice were randomly divided into a model group and an electrothermal acupuncture (ETA) group with 10 mice per group, both of which continued to receive the HFD till week 12. Another 10 mice were assigned to the normal group and fed a standard chow diet continuously for 12 weeks. Starting from week 9 of the experiment, mice in the ETA group received electrothermal acupuncture stimulation at Zhongwan (CV12), bilateral Tianshu (ST25), and bilateral Zusanli (ST36) for 30 minutes per session, with the instrument current set at (40±0.5)mA and a constant temperature of (40±0.5)℃. Mice in the normal group and the model group were restrained in the same manner for 30 minutes without acupuncture. All interventions were performed once every other day for a total of 4 weeks. Ten hours after the final intervention, the body weight, waist circumference, and body length of mice in each group were measured, and Lee's index was calculated. Serum biochemical analysis was performed to assess fasting blood glucose (FBG), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), and creatinine (Cr). Serum leptin (LEP) and adiponectin (ADPN) levels, as well as sphingosine-1-phosphate (S1P) levels in epididymal white adipose tissue (eWAT), were detected by ELISA. Histomorphological changes in eWAT were monitored via HE staining. Flow cytometry was used to analyze macrophage subtype-related indexes in eWAT, including the total proportion of macrophages, the proportion of M1 macrophages, the proportion of M2 macrophages, and the M1/M2 ratio. Antibody array technology was used to determine the levels of differentially expressed inflammatory factors in eWAT between the model and blank groups, as well as between the ETA and model groups. Western blot and qPCR were used to detect the protein and mRNA expression levels of HIF-1α and S1PR3 in the eWAT, respectively. ResultsCompared to the normal group, the model group showed significantly increased body weight, Lee's index, waist circumference, and FBG, TC, TG, HDL-C, LDL-C, AST, and ALT levels, upgraded LEP and S1P levels, decreased ADPN level and ADPN/LEP ratio, elevated proportion of M1 macrophages and the M1/M2 ratio, reduced proportion of M2 macrophages, and upregulated protein and mRNA expression levels of HIF-1α and S1PR3 (P<0.05 or P<0.01). With the exception of HDL-C, all the abovementioned indicators in the ETA group were significantly improved compared to the model group (P<0.05 or P<0.01). Analysis of differentially expressed inflammatory cytokines revealed that, compared to the normal group, the levels of interleukin-1β (IL-1β), interferon-γ (IFN-γ), interleukin-6 (IL-6), and interleukin-12p70 (IL-12p70) in the eWAT of the model group were elevated; conversely, the levels of interleukin-17 (IL-17), interleukin-5 (IL-5), IL-6, and interleukin-23 (IL-23) in the eWAT of the ETA group decreased compared to the model group (P<0.05 or P<0.01). ConclusionETA exerts a weight-reducing effect in obese model mice, and the mechanism may involve inhibition of the HIF-1α/S1P/S1PR3 signaling pathway activation, which shifts macrophage polarization from the M1 to M2 phenotype, thereby alleviating chronic inflammation.
9.Effect of Schisanlactone E on Neuroinflammation and Synaptic Damage in APP/PS1 Mice and Their Relationship with Th17/Treg Immune Balance
Wenjing YU ; Miao YANG ; Chunxiang HE ; Jiawei HE ; Zhenyan SONG ; Ping LI ; Shaowu CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(22):112-123
ObjectiveTo investigate the effect of schisanlactone E in ameliorating neuroinflammation and synaptic injury in APP/PS1 mice and to elucidate whether its mechanism is related to the regulation of helper T cell 17 (Th17)/regulatory T cell (Treg) immune balance. MethodsAPP/PS1 transgenic mice were assigned into model, low- and high-dose (2 mg·kg-1·d-1 and 4 mg·kg-1·d-1, respectively) schisanlactone E, and donepezil (1 mg·kg-1·d-1) groups. C57BL/6J mice were used as the control group. Each group received the corresponding drug by gavage for 30 days. Learning and memory abilities were assessed by the Morris water maze and novel object recognition tests. The percentages of Th17 and Treg cells in the peripheral blood were analyzed by flow cytometry. The mRNA levels of retinoid-related orphan receptor γt (RORγt), interleukin (IL)-17A, forkhead box protein 3 (FoxP3), and IL-4 in the hippocampus were determined by Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). The synaptic ultrastructure in the hippocampus was observed by transmission electron microscopy. The protein levels of synapsin Ⅰ and postsynaptic density protein 95 (PSD95) in the hippocampus were measured by Western blot. Aβ aggregation and microglial activation in the hippocampus were observed by immunofluorescence staining. The mRNA levels of tumor necrosis factor (TNF)-α, IL-6, and IL-1β in the hippocampus were determined by Real-time PCR. ResultsCompared with the control group, the model group showed prolonged escape latency (P<0.05), decreased time spent in the target quadrant, platform crossings, novel object exploration time, and percentage of novel object contact frequency (P<0.05, P<0.01), increased Aβ aggregation in the hippocampal tissue (P<0.01), an increased proportion of Th17 cells (P<0.05), a decreased proportion of Treg cells (P<0.05), and an increased Th17/Treg ratio (P<0.01) in the peripheral blood. Furthermore, the hippocampal tissue in the model group exhibited upregulated mRNA levels of RORγt and IL-17A (P<0.05, P<0.01), downregulated mRNA levels of FoxP3 and IL-4 (P<0.01), decreased synapses (P<0.05), decreased PSD density, synaptic interface curvature, and active zone length (P<0.05, P<0.01), and increased synaptic cleft width (P<0.05), downregulated protein levels of Synapsin Ⅰ and PSD95 (P<0.01), increased microglial activation (P<0.01), and upregulated mRNA levels of TNF-α, IL-6, and IL-1β (P<0.05). Compared with the model group, the high-dose schisanlactone E group and the donepezil group exhibited shortened escape latency and increased time in the target quadrant and platform crossings (P<0.05, P<0.01). The schisanlactone E groups and the donepezil group showed increased novel object exploration time (P<0.05, P<0.01) and percentage of novel object contact frequency (P<0.05, P<0.01), and reduced hippocampal Aβ aggregation (P<0.05, P<0.01). The schisanlactone E groups showed a decreased proportion of Th17 cells (P<0.05) and an increased proportion of Treg cells (P<0.05) in the peripheral blood, and all treatment groups showed a decreased Th17/Treg ratio (P<0.05, P<0.01). The high-dose schisanlactone E group showed a downregulated mRNA level of RORγt in the hippocampal tissue (P<0.05), and all treatment groups showed a downregulated mRNA level of IL-17A (P<0.05, P<0.01), and upregulated mRNA levels of FoxP3 and IL-4 (P<0.05, P<0.01). The schisanlactone E groups and the donepezil group showed increased synapses, active zone length, synaptic interface curvature, and PSD density, decreased synaptic cleft width (P<0.05, P<0.01), and upregulated protein levels of synapsin Ⅰ and PSD95 (P<0.05, P<0.01). The high-dose schisanlactone E group and the donepezil group showed decreased microglial activation in the hippocampus (P<0.01). The schisanlactone E groups and the donepezil group showed downregulated mRNA levels of TNF-α, IL-6, and IL-1β in the hippocampal tissue (P<0.05, P<0.01). ConclusionSchisanlactone E significantly improves the cognitive function in APP/PS1 mice by regulating the Th17/Treg immune balance, inhibiting neuroinflammation, and ameliorating synaptic injury.
10.Aspirin Curcumin Ester Inhibits High Glucose/Aβ1-42-induced Microglial Inflammatory Response by Regulating Glucose Metabolism Reprogramming
Wenjing YU ; Miao YANG ; Chunxiang HE ; Ze LI ; Jiawei HE ; Ping LI ; Zhenyan SONG ; Shaowu CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(22):124-137
ObjectiveTo observe the effect of aspirin curcumin ester (CA) on the activation and glucose metabolism reprogramming of the mouse microglia (BV2) model of inflammation induced by high glucose/β-amyloid (Aβ)1-42, and to explore the potential mechanism of CA in reducing neuroinflammatory response in the brain. MethodsThe BV2 activation model was constructed by high glucose combined with Aβ1-42 oligomers. BV2 cells were treated with Aβ1-42 oligomers (10 μmol·L-1) in a high glucose (50 mmol·L-1) environment and allocated into normal, high glucose, Aβ, and high glucose + Aβ groups. The cell morphology of each group was observed under a bright field. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was adopted to assess the mRNA levels of inflammatory factors including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) as well as glycolysis-related glucose transporter type 1 (GLUT1), hexokinase 2 (HK2), phospofructokinase-2/fructose-2,6-bisphosphatase 3 (PFKFB3), and pyruvate kinase M2 (PKM2). To reveal the effects of CA on inflammatory response and glucose metabolism in BV2 cells exposed to high glucose/Aβ1-42, this study established the BV2 cell model of inflammatory activation by high glucose and Aβ1-42 oligomer intervention. The cells were allocated into normal, model (50 mmol·L-1 glucose + 10 μmol·L-1 Aβ1-42), CA (10 μmol·L-1), 2DG (0.2 mmol·L-1), and DADA (1 mmol·L-1) groups. Cell counting kit-8 (CCK-8) was used to detect cell survival rate. The cell morphology of each group was observed under a bright field. The expression of inflammatory factors TNF-α, IL-6, and IL-1β and glycolysis-related key enzymes GLUT1, HK2, PFKFB3, and PKM2 at the mRNA level in each group was measured by real-time PCR. The protein levels of GLUT1, HK2, PFKFB3, and PKM2 were determined by Western blot. The glycolysis rate in each group was measured by seahorse. LC-MS was employed to identify the glucose metabolism intermediates. The morphology of mitochondria in cells was observed by electron microscopy. ResultsConstruction of the BV2 cell model: Compared with the normal group, the Aβ group and the high glucose + Aβ group showed more amoeboid-shaped cells and cell aggregation. The high glucose + Aβ group exhibited increased the mRNA levels of TNF-α, IL-1β, and IL-6 (P<0.05, P<0.01), as well as those of key glycolytic enzymes GLUT1, HK2, PFKFB3, and PKM2 (P<0.01). The Aβ group also showed significantly increased mRNA levels of PKM2 and PFKFB3 (P<0.01). Effects of CA on the inflammatory response and glucose metabolism in BV2 cells exposed to high glucose/Aβ1-42: Compared with the normal group, the model group exhibited amoeboid-shaped cells and cell aggregation, upregulated mRNA levels of TNF-α, IL-1β, IL-6, iNOS, GLUT1, HK2, PFKFB3, and PKM2 (P<0.01) and protein levels of GLUT1, HK2, and PFKFB3 (P<0.05, P<0.01), an increased basal glycolysis rate (P<0.01), a decreased compensatory glycolysis rate (P<0.01), increased glycolytic intermediates and reduced TCA cycle intermediates. In addition, the mitochondria in the model group exhibited a decreased number (P<0.05), impaired crista integrity (P<0.01), an increased proportion of vacuolization (P<0.01), and abnormal mitochondrial morphology. Compared with those in the model group, the number of amoeboid-shaped BV2 cells reduced in the CA and 2DG groups, while most BV2 cells in the DADA group became elongated spindle-shaped. All the three treatment groups showed downregulated mRNA levels of TNF-α, IL-1β, IL-6, GLUT1, HK2, PFKFB3, and PKM2 (P<0.05, P<0.01), downregulated protein levels of GLUT1, HK2, and PFKFB3 (P<0.05, P<0.01), and slow compensatory glycolysis and basal glycolysis (P<0.05, P<0.01). Glycolytic intermediates were decreased and TCA cycle intermediates were increased in the CA and 2DG groups. Mitochondrial morphology largely returned to the normal level in all the three treatment groups, with an increase in mitochondrial number (P<0.05), improved crista integrity (P<0.05, P<0.01), and a decreased proportion of vacuolization (P<0.05). ConclusionAβ1-42 oligomers can activate BV2 cells and enhance glycolytic activity in the high glucose environment. CA can reduce the expression of inflammatory factors and inhibit the activation of BV2 cells by regulating the glucose metabolism reprogramming in BV2 cells.


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