1.Perioperative immune dynamics and clinical outcomes in patients undergoing on-pump cardiac surgery
Zhiyuan CHENG ; Xinyi LIAO ; Juan WU ; Ping YANG ; Tingting WANG ; Qinjuan WU ; Wentong MENG ; Zongcheng TANG ; Jiayi SUN ; Jia TAN ; Jing LIN ; Dan LUO ; Hao WANG ; Chaonan LIU ; Jiyue XIONG ; Liqin LING ; Jing ZHOU ; Lei DU
Chinese Journal of Blood Transfusion 2026;39(1):31-43
Objective: To characterize perioperative dynamic changes in immune-cell phenotypes and inflammatory cytokines in patients undergoing CPB (cardiopulmonary bypass) cardiac surgery, and to explore their associations with postoperative outcomes. Methods: In this prospective cohort study, 120 adult patients who underwent elective cardiac surgery under CPB at West China Hospital from May 2022 to March 2023 were enrolled. Perioperative immune-cell phenotypes and concentrations of 40 inflammation-related cytokines were measured. The primary outcomes were the sequential organ failure assessment (SOFA) score at 24 h after surgery and ΔSOFA (the peak SOFA score within 48 h after surgery minus the preoperative SOFA score). Secondary outcomes included major adverse cardiovascular events (MACE), acute kidney injury (AKI), respiratory failure, severe liver injury, and infection. Results: The mean age of enrolled patients was 57±10 years. Of these, 52% (62/120) were male and 90% (108/120) underwent valve surgery. During the rewarming to the end of CPB, neutrophil counts rapidly increased (7.39×10
/L vs preoperative 3.07×10
/L, P<0.001), with significant upregulation of CD11b (7.30×10
/L vs preoperative 3.05×10
/L, P<0.001) and CD54 (7.15×10
/L vs preoperative 2.99×10
/L, P<0.001). Lymphocyte counts increased at the end of CPB (1.75×10
/L vs preoperative 1.12×10
/L, P<0.001) but decreased significantly at 24 h after surgery (0.59×10
/L vs preoperative 1.12×10
/L, P<0.001). Plasma analysis showed that multiple pro-inflammatory cytokines increased during CPB and remained elevated up to 24 h after surgery; five chemokines and the anti-inflammatory cytokine IL-10 peaked at the end of CPB. The SOFA score increased from 1 (1, 2) preoperatively to 7 (5, 10) at 24 h after surgery, with a ΔSOFA of 6 (4, 8). Within 30 days after surgery, 48 patients (40.0%) developed AKI, 17 (14.2%) developed infection, 4 (3.3%) developed severe liver injury, 3 (2.5%) developed respiratory failure, and 3 (2.5%) experienced MACE. During the 2-year follow-up, 8 patients (6.7%) experienced MACE and 5 (4.2%) died. Conclusion: Multi-organ dysfunction is common after cardiac surgery under CPB (median ΔSOFA, 6), accompanied by perioperative activation of multiple immune-cell subsets and upregulation of pro-inflammatory, anti-inflammatory, and chemotactic mediators. This study provides data-driven evidence and research clues for further investigation of the associations between CPB-related immune perturbations and postoperative organ dysfunction and clinical outcomes.
2.Key points of the International consensus guidelines on the implementation and monitoring of vosoritide therapy in individuals with Achondroplasia.
Hangyu PING ; Ran DING ; Cheng HUANG ; Yue PENG ; Zikang ZHONG ; Weiguo WANG
Chinese Journal of Medical Genetics 2026;43(1):5-12
Achondroplasia (ACH) is a common inherited skeletal dysplasia (inherited dwarfism) that compromises quality of life across the lifespan. In 2021, vosoritide became the first approved precision therapy for ACH and is now available in more than 40 countries. Compared with prior symptomatic measures, vosoritide has demonstrated favorable efficacy and a reassuring safety profile. Nevertheless, existing international ACH guidelines largely emphasize complication management and symptomatic care, and there is no unified consensus on pharmacologic therapy. To address this gap, an international expert group developed the International Consensus Guidelines for the Implementation and Monitoring of Vosoritide Therapy in Patients with Achondroplasia providing systematic recommendations that span the continuum of care - from initial patient contact and pre-treatment assessment to medication counseling, injection training, and long-term outcome monitoring. These recommendations complement and refine current management and nursing protocols for individuals with ACH and offer practical guidance for clinicians across diverse regions. This article highlights key elements of the guideline to provide evidence-based support and clinical direction for healthcare professionals in China treating children with ACH using vosoritide.
Humans
;
Achondroplasia/drug therapy*
;
Consensus
;
Practice Guidelines as Topic
;
Child
3.Value of demographic factors in early identification of pediatric malignant vasovagal syncope in head-up tilt test
Shuo WANG ; Yuwen WANG ; Hong CAI ; Ping LIU ; Fang LI ; Chuan WEN ; Liqun LIU ; Runmei ZOU ; Cheng WANG
Clinical and Experimental Pediatrics 2026;69(4):353-361
Background:
Malignant vasovagal syncope (VVS) is characterized by cardiac arrest lasting more than 3 seconds during a syncope episode or head-up tilt test (HUTT). We aim to conduct a risk assessment for potential malignant VVS before the HUTT by using economic, simple and convenient demographic data, in order to prevent adverse outcomes for pediatric VVS.Purpose: To explore the correlation between demographic factors and pediatric malignant VVS, and verify the value of these factors in early risk assessment for malignant VVS before HUTT, so as to optimize test safety and reduce adverse events.
Methods:
We conducted a retrospective analysis of the clinical data of 3,734 children who were initially diagnosed with VVS due to unexplained syncope and presyncope. Finally, 122 children who met the diagnostic criteria for malignant VVS were included in the malignant VVS group, and 661 children who did not meet the criteria during the same period were matched as the control group. By analyzing demographic data and other factors, we attempted to clarify the association between these factors and malignant VVS.
Results:
Linear relationship: age and body mass index (BMI) have independent protective effects on malignant VVS. For every 1-year increase in age and every 1 kg/m2 increase in BMI, the risk of malignant VVS decreases by 12% and 9%, respectively. Nonlinear relationship: When the age is <12.9 years old, for every additional year of age, the risk of malignant VVS decreases by 20%. For ages 12.9 years and above, the efficacy is not significant. There is no significant nonlinear relationship between BMI and malignant VVS.
Conclusion
Age and BMI are independent protective factors for pediatric malignant VVS. Before the age of 12.9 years, the incidence of malignant VVS gradually decreases with the increase in age, and thereafter there is no significant impact.
4.Transforaminal “in-out-in” screw technique for posterior C2 fixation in cases with a narrow C2 pedicle: anatomical considerations, technical notes, and preliminary clinical results
Jun YAN ; Cheng QIU ; Lei QI ; Lei CHENG ; Yan-ping ZHENG ; Xin-yu LIU
Asian Spine Journal 2026;20(1):134-142
Numerous techniques for C2 screw fixation have been recently reported. However, concerns remain regarding the risk of spinal cord or vertebral artery injury and inadequate biomechanical stability. To our knowledge, the specific transforaminal “in-out-in” screw fixation technique has not been previously reported. This study aimed to investigate the feasibility and preliminary clinical outcomes of a transforaminal “in-out-in” multi-cortical purchase screw for posterior C2 screw fixation. Between October 2022 and March 2023, 10 patients underwent posterior atlantoaxial internal fixation. All patients had severe hypoplasia of the C2 pedicle on at least one side, precluding the use of standard C2 pedicle screws. A transforaminal “in-out-in” screw was used as an alternative. No spinal cord injury, vascular injury, or other major complications were observed. No implant failure was noted at the final follow-up. In conclusion, the transforaminal “in-out-in” screw may achieve rigid three-column fixation with multiple cortical purchases. It represents a safe and effective alternative for posterior C2 fixation in patients with severely narrow C2 pedicles where traditional pedicle screw placement is not feasible.
5.Epidemiological characteristics of poisonous mushroom-related foodborne disease incidents in Chongqing in 2010-2024
Qing LUO ; Shuquan LUO ; Ping FENG ; Rongsheng FU ; Longfeng CHENG ; Ya WU ; Jingrong CHEN
Journal of Public Health and Preventive Medicine 2026;37(4):36-40
Objective To analyze the epidemiological characteristics of poisonous mushroom-related foodborne disease incidents in Chongqing from 2010 to 2024, and to provide a scientific basis for effective prevention and control of mushroom-related foodborne diseases. Methods Data of poisonous mushroom related foodborne disease incidents reported by the CDCs of 39 districts and counties in Chongqing from 2010 to 2024 were collected, and their epidemic characteristics were analyzed. Results A total of 264 poisonous mushroom poisoning outbreaks were reported in Chongqing from 2010 to 2024, resulting in 1 046 cases of illness, 543 hospitalizations, and 15 deaths, with a mortality rate of 1.43%. The peak of poisoning incidents was from June to October, accounting for 89.02% of the total number of incidents. The top three high-incidence areas were Pengshui Miao Tujia Autonomous County, Dianjiang County, and Nanchuan District. Poisonous mushroom poisoning incidents occurring in household settings, accidental picking and ingestion, and cases involving unidentified mushroom species accounted for 89.02%, 83.33%, and 90.15% of all foodborne disease outbreak incidents, respectively. Conclusion Foodborne disease incidents related to poisonous mushrooms in Chongqing City show an upward trend, and the effectiveness of prevention and control needs to be improved. Based on their seasonal, regional and household clustering characteristics, efforts should be made before the peak season of mushroom poisoning in high-risk areas, targeting key populations with health education, monitoring and early warning, food safety supervision, and medical treatment.
6.Differences in arousal threshold among obstructive sleep apnea patients of different genetic backgrounds and influencing factors
Rui ZHAO ; Ping YAO ; Zhiqiang ZHANG ; Zhiguo GUO ; Minqi XIE ; Hui DANG ; Yanrong JIA ; Jing CHENG ; Dongsheng LYU
Sichuan Mental Health 2026;39(3):240-245
BackgroundObstructive sleep apnea (OSA) represents a prevalent sleep disordered breathing condition characterized by complex pathophysiology. The arousal threshold (ArTH), a core non-anatomical contributor to OSA pathogenesis, is intimately tied to the disease severity and clinical phenotypes. To date, research regarding factors associated with ArTH has yielded inconsistent findings, and ArTH profiles and disparities across populations with different genetic backgrounds are not fully elucidated. ObjectiveTo explore the differences of ArTH in OSA patients with different genetic backgrounds and analyze the key factors affecting ArTH, thereby providing evidence for understanding OSA pathophysiology and formulating targeted treatment regimens. MethodsA total of 285 patients who met the diagnostic criteria for OSA, as defined by the Multidisciplinary Diagnosis and Treatment Guidelines for Adult Obstructive Sleep Apnea, were retrospectively enrolled in this study. All participants underwent overnight polysomnography (PSG) at the Sleep Medicine Center of Inner Mongolia Mental Health Center from December 2022 to May 2024. Based on the study design, the cohort was stratified into two distinct genetic background subgroups (group A and group B). Demographic and clinical characteristics, the Epworth Sleepiness Scale (ESS) score, and overnight PSG data were collected. The apnea hypopnea index (AHI), the lowest pulse oxygen saturation (LSpO2), and fraction of hypopneas (FHypopneas) were utilized as surrogate indicators to estimate ArTH in OSA patients. The influencing factors of low ArTH were tested by binary Logistic regression analysis. ResultsAmong the 285 OSA patients, there were 227 cases (79.65%) in group A and 58 cases (20.35%) in group B. Comparisons between the two genetic background subgroups revealed no statistically significant differences in the proportion of low ArTH, ESS score, PSG parameters, and the three markers for low ArTH (AHI<30 events/h, LSpO2>82.5%, FHypopneas>58.3%) (P>0.05). Binary Logistic regression analysis identified sex (OR=2.421, 95% CI: 1.070–5.478), BMI (OR=0.847, 95% CI: 0.770–0.932), N1 sleep duration (OR=0.974, 95% CI: 0.963–0.985), and hypertension (OR=0.348, 95% CI: 0.143–0.848) as independent factors associated with low ArTH in the total cohort. Stratified analysis by genetic backgrounds revealed that sex(OR=3.799, 95% CI: 1.389–10.392), BMI(OR=0.819, 95% CI:0.723–0.929), and N1 sleep duration(OR=0.973, 95% CI: 0.961–0.986) were independent factors of low ArTH in group A. In contrast, only N1 sleep duration (OR=0.951, 95% CI: 0.911–0.993) remained a significant factor in group B. ConclusionArthur may have conservative characteristics in patients with OSA with different genetic backgrounds, but the pathophysiological mechanism of OSA may have population heterogeneity. [Funded by Inner Mongolia Autonomous Region Natural Science Fundation Project (number, 2024QN08050); Intra-institutional Scientific Research Project of Inner Mongolia Mental Health Center (number, 2022QNWN0010)]
7.Analysis of sarcopenia prevalence and related factors in community-dwelling older adults based on C-MSRA-7 combined with Ishii score
Lijun WANG ; Ping WU ; Haimin XU ; Kewen CHENG ; Fen RAO ; Miaomiao YAO ; Yu ZHANG
Chinese Journal of Clinical Medicine 2026;33(4):643-650
Objective To investigate the prevalence and related factors of sarcopenia among non–bedridden older adults in the community of Baoshan District using the China mini sarcopenia risk assessment 7 (C-MSRA-7) combined with Ishii scoring system. Methods The older individuals consulting at 20 community health stations in Baoshan District between April 2025 and June 2025 were enrolled. Data were collected using a general information questionnaire, a dietary and lifestyle habits survey, the C-MSRA-7, and the mini nutritional assessment-short form (MNA-SF). Handgrip strength and anthropometric measurements were also obtained. Individuals with both Ishii score and C-MSRA-7 results positive were classified into the sarcopenia risk group, while the remaining participants were assigned to the non–sarcopenia risk group. Differences in lifestyle habits, dietary patterns, and nutritional status between the two groups were compared. Results A total of 2 611 valid questionnaires were retrieved. Univariate analysis showed statistically significant differences in alcohol consumption, physical activity frequency, body mass index (BMI), nutritional status, activities of daily living, and regularity of three meals in sarcopenia risk group (n=486) and non–sarcopenia risk group (n=2 125, P<0.05). Logistic regression analysis showed that advanced age (75–84 years: OR=2.55, 95%CI 2.03–3.21; ≥85 years: OR=3.98, 95%CI 2.24–7.07), underweight status (OR=2.19, 95%CI 1.50–3.19), weight loss>2 kg (OR=4.52, 95%CI 2.68–7.64) past 3 months, lack of regular physical activity (OR=1.77, 95%CI 1.24–2.52) , and alcohol consumption (OR=1.48, 95%CI 1.07–2.05) were independent risk factors for sarcopenia (P<0.05). Behaviors related to healthy diet, including daily milk consumption (OR=0.40, 95%CI 0.30–0.52), regular three meals (OR=0.56, 95%CI 0.41–0.78), and high-quality protein intake (OR=0.70, 95%CI 0.52–0.94), were protective factors (P<0.05). Conclusions Sarcopenia among community–dwelling, non–bedridden older adults is closely associated with physical activity levels, dietary habits, and nutritional status. Early identification of individuals at risk, enhanced nutritional education, and timely implementation of nutritional interventions and exercise programs are recommended for this population.
8.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.
9.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.
10.Paeoniflorin Ameliorates Neuroinflammation and Cognitive Impairment in Rat Model of Alzheimer's Disease via JAK2/STAT3 Signaling Pathway
Mengfen ZHOU ; Shuyao TANG ; Xin SUN ; Gangying FU ; Xinxing ZHOU ; Jiawei HE ; Wenjing YU ; Ping LI ; Shaowu CHENG ; Zhenyan SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(22):138-147
ObjectiveTo investigate the effects of paeoniflorin (PF) on neuroinflammation and cognitive impairment in the rat model of Alzheimer's disease (AD) and to clarify whether its mechanism is associated with regulation of the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling pathway. MethodsGlycosides related to AD-associated neuroinflammation were screened through bibliometric analysis, and the potential targets of PF were predicted through network pharmacology and molecular docking. A rat model of AD was established by intraperitoneal injection of D-galactose (100 mg·kg-1·d-1). Rats were assigned into a control group, a model group, a PF (200 mg·kg-1) group, and a donepezil (0.5 mg·kg-1·d-1) group, and drugs were administered by gavage for 21 days. The learning and memory abilities were evaluated by the Morris water maze (MWM). Hematoxylin-eosin (HE) staining and Nissl staining were performed to observe hippocampal neuronal morphology. The mRNA levels of inflammatory factors were determined by Real-time quantitative polymerase chain reaction (Real-time PCR), and the protein levels of molecules in the JAK2/STAT3 signaling pathway were determined by Western blot. ResultsCompared with the control group, the model group showed prolonged escape latency and decreased platform crossings and time spent in the target quadrant (P<0.05, P<0.01), accompanied by increased expression of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), as well as elevated ratios of phosphorylated (p)-JAK2/JAK2 and p-STAT3/STAT3 (P<0.01). Compared with the model group, the PF group and donepezil group exhibited shortened escape latency and increased platform crossings and time spent in the target quadrant (P<0.05, P<0.01), decreased expression levels of IL-1β and TNF-α, upregulated mRNA levels of interleukin-4 (IL-4) and interleukin-10 (IL-10), and reduced ratios of p-JAK2/JAK2 and p-STAT3/STAT3 (P<0.05, P<0.01). ConclusionPaeoniflorin can alleviate cognitive impairment and neuroinflammation in the rat model of AD by inhibiting the JAK2/STAT3 signaling pathway.


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