1.Study on the mechanism of Huatan qushi huoxue formula in improving metabolic dysfunction-associated steatohepatitis by inhibiting macrophage pyroptosis
Yajie GUAN ; Qizhen ZHANG ; Junjiao XU ; Yijia SONG ; Dongfang SHANG ; Wenxia ZHAO ; Minghao LIU
China Pharmacy 2026;37(7):864-869
OBJECTIVE To focus on the classic NOD-like receptor protein 3 (NLRP3)/Caspase-1/gasdermin D (GSDMD) pyroptosis pathway and explore the mechanism by which Huatan qushi huoxue formula (HQHF) inhibits macrophage pyroptosis to ameliorate metabolic dysfunction-associated steatohepatitis (MASH). METHODS RAW264.7 cells were divided into 5 groups: Control group (10% blank serum), Model group [10% blank serum+5 μg/mL lipopolysaccharide (LPS)], HQHF-L group (2.5% drug-containing serum+7.5% blank serum+5 μg/mL LPS), HQHF-M group (5% drug-containing serum+5% blank serum+5 μg/mL LPS), and HQHF-H group (10% drug-containing serum+5 μg/mL LPS). After 24 h of routine culture post-administration, cells and supernatants were collected for assays. Cell morphology was observed via scanning electron microscopy and phase-contrast microscopy; localization and expression of gasdermin D-N (GSDMD-N) were observed by immunofluorescence. Interleukin-1β (IL-1β) and IL-18 contents in supernatants were detected by ELISA; mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD were measured using real-time PCR and Western blot. RESULTS Compared with the Control group, the Model group showed typical pyroptotic morphology (cell membrane bulging and pore formation), increased aggregation and fluorescence intensity of GSDMD-N on the cell membrane ( P <0.05), significantly increased the contents of IL-1β and IL-18 in cell supernatants ( P <0.05), and significantly up-regulated mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD in cells ( P <0.05). Compared with the Model group, the HQHF-L, HQHF-M and HQHF-H groups showed improved pyroptotic morphology, reduced membrane localization and significantly weakened fluorescence intensity of GSDMD-N ( P <0.05), significantly decreased the contents of IL-1β and IL-18 in cell supernatants ( P <0.05), and significantly down-regulated mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD in cells ( P <0.05). CONCLUSIONS HQHF inhibits LPS-induced macrophage pyroptosis, and its mechanism of improving MASH may be associated with the suppression of the activation of the classical NLRP3/Caspase-1/GSDMD pyroptosis pathway.
2.Effects of Xiebai San on the Morphological Structures of Lung and Intestinal Tissues and Expression Levels of PI3K and Akt in Rats with Allergic Asthma
Jing SONG ; Zongtong YANG ; Xiaojing LI ; Zifa LI ; Fengyun SU ; Dongchuan XU ; Zaiyun SUI
Laboratory Animal and Comparative Medicine 2026;46(2):191-204
ObjectiveTo investigate the mechanism by which Xiebai San regulates respiratory tract and intestinal mucosal immunity in rats with allergic asthma. MethodsForty male SD rats were randomly divided into four groups based on body weight: control group, model group, positive control group, and Xiebai San group. The model group, positive control group, and Xiebai San group were sensitized with ovalbumin to establish a rat model of allergic asthma. From day 21 (the aerosol challenge phase), each group received daily gavage interventions simultaneously: the positive control group was administered dexamethasone (0.068 mg/kg), the Xiebai San group received Xiebai San solution (2 g/mL, 11.3 mL/kg), while the control and model groups were given an equal volume of normal saline, once daily for 14 consecutive days. After euthanasia, lung and intestinal tissues were collected. Hematoxylin and eosin staining was used to observe histopathological changes. Transmission electron microscopy was employed to examine tissue ultrastructure. Immunohistochemistry was applied to detect the positive reaction areas of phosphatidyl-inositol 3-kinase (PI3K) and protein kinase B (Akt) proteins. Total protein and total RNA were extracted from lung and intestinal tissues, then the protein and mRNA expression levels of PI3K and Akt genes were detected by Western blotting and real-time quantitative PCR, respectively. ResultsHistopathological results showed alveolar emphysema accompanied by inflammatory cell infiltration, and intestinal mucosal injury with inflammatory cell infiltration in the model group as compared with the control group; the cellular structure of lung tissues was disrupted in the model group, with reduced organelles, while the ultrastructural lesions in the intestine were relatively mild. Compared with the model group, Xiebai San group exhibited milder pathological changes in lung tissues, with occasional alveolar wall damage and a small amount of inflammatory cell infiltration; the intestinal mucosal structure was improved, glands were arranged regularly, and pathological changes such as tissue loosening and inflammatory infiltration were alleviated; the cellular structure of lung tissues was relatively intact with reduced severity of lesions, and no ultrastructural pathological changes were observed in intestinal tissues. Immunohistochemistry and Western blotting results showed that compared with the control group, the specific positive reaction areas of PI3K and Akt in lung and intestinal tissues were significantly increased in the model group (all P<0.001); meanwhile, the protein expression levels of PI3K and Akt were significantly upregulated (all P<0.05). Compared with the model group, the positive area of Akt protein in lung tissue was significantly reduced in the Xiebai San group (P<0.001), and the positive area of PI3K in intestinal tissue was also significantly decreased (P<0.000 1). Additionally, the protein expression levels of PI3K and Akt in lung and intestinal tissues were significantly downregulated (all P<0.01). Real-time quantitative PCR results showed that compared with the control group, the mRNA expression levels of PI3K and Akt genes in lung and intestinal tissues were significantly elevated in the model group (all P<0.05). Compared with the model group, the mRNA expression levels of PI3K and Akt genes in lung and intestinal tissues were significantly reduced in the Xiebai San group (all P<0.05). ConclusionXiebai San exerts protective effects on rats with allergic asthma by inhibiting the expression of key nucleic acids and proteins in the PI3K-Akt signaling pathway in lung and intestinal tissues, improving the morphological structure of lung tissue, and maintaining intestinal mucosal integrity, and regulating intestinal mucosal immune function.
3.Heat-clearing and Toxin-removing Method Reduces Ischemic Stroke Injury by Protecting Endothelial-pericyte and Inhibiting Macrophage Migration
Zijin SUN ; Haojia ZHANG ; Kai WANG ; Zhaoyi WANG ; Linjing SONG ; Wenxiu XU ; Jing JI ; Changxiang LI ; Qingguo WANG ; Xueqian WANG ; Fafeng CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):56-67
ObjectiveTo investigate the regulatory effects of Huanglian Jiedutang (HLJDT) on immune cell migration, blood-brain barrier protection, and cellular functional recovery in a model of ischemic stroke. MethodsA transient middle cerebral artery occlusion (tMCAO) model was established in mice to induce ischemic stroke. Cerebral blood flow and neurological function were evaluated using laser speckle imaging and neurological deficit scoring. Histopathological damage in brain tissues was assessed by hematoxylin-eosin (HE) and Nissl staining. Mice were divided into a sham group, a model group, an HLJDT group, and a Ginkgo biloba extract (GBE) group. After one week of acclimatization, intragastric administration was initiated. The sham and model groups received normal saline, the HLJDT group received HLJDT at 1.82 g·kg-¹, and the GBE group received GBE at 0.432 g·kg-¹. Administration was continued for 5 consecutive days, and the tMCAO model was established after the final dose on day 6. Single-cell RNA sequencing was performed on brain tissues and peripheral immune cells. UMAP and odds ratio (OR) indices were used to analyze cell distribution. Differential expression analysis was conducted to evaluate the effects of HLJDT on endothelial cells, pericytes, and macrophages, combined with CellChat and decoupler to analyze cell-cell communication and transcription factor regulation. Finally, PCR and ELISA were used to validate the mRNA and protein expression of relevant genes. ResultsCompared with the sham group, the model group showed significantly increased neurological deficit scores (P<0.01) and significantly decreased cerebral blood flow (P<0.01), accompanied by cortical structural disorder, aggravated cytoplasmic vacuolization, and increased numbers of Nissl bodies. Compared with the model group, both the HLJDT and GBE groups exhibited significantly reduced neurological deficit scores (P<0.01) and markedly improved cerebral blood flow (P<0.01), along with amelioration of cortical structural disorder, alleviated cytoplasmic vacuolization, and reduced numbers of Nissl bodies. Single-cell analysis showed that HLJDT protected endothelial cells and pericytes by preventing their reduction, restored the expression of functional genes in these cells (e.g., PECAM1 and NOS3), and downregulated the expression of chemokines and adhesion-related factors (e.g., CCL2 and CXCL2). In macrophages, HLJDT reduced their recruitment to the central nervous system and downregulated the expression of chemokine receptors and inflammatory factors (e.g., IL-6, CCR2, and CXCR2). Cell-cell communication analysis further indicated that HLJDT, through the above mechanisms, alleviated damage to pericytes and endothelial cells, reduced their recruitment of macrophages, and decreased ligand-receptor interactions in chemokine signaling pathways (including CCL, CXCL, and CSF3) between pericytes/endothelial cells and macrophages, thereby preventing secondary injury. Compared with the sham group, the model group showed significantly upregulated mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), while mRNA expression levels of endothelial- and pericyte function-related genes (RGS5, PECAM1, VEGFB, and NOS3) were significantly downregulated (P<0.01). In contrast, compared with the model group, the HLJDT and GBE groups exhibited significantly decreased mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), and significantly increased expression of RGS5, PECAM1, VEGFB, and NOS3 (P<0.01). At the protein level, compared with the sham group, the model group showed significantly increased expression of IL-1β, IL-6, and TNF-α (P<0.01), whereas these protein levels were significantly reduced in the HLJDT and GBE groups compared with the model group (P<0.01). ConclusionHLJDT reduces neuronal damage in ischemic stroke by protecting endothelial cells and pericytes, while inhibiting their interaction with macrophages, thereby mitigating secondary injury in the central nervous system.
4.Exploring Mechanism of Chaihu Jia Longgu Mulitang in Depressive-like Rats via AMPK/SIRT1/NF-κB/NLRP3 Signaling Pathway
Guang WANG ; Xinhua SONG ; Jie YANG ; Jinyao XU ; Junhua MEI ; Chao CHEN ; Guohua CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):144-152
ObjectiveTo investigate the effects of Chaihu Jia Longgu Mulitang(CJLM) on depression-like behaviors and neuroinflammation in rats subjected to social isolation combined with chronic unpredictable mild stress(CUMS), and to explore the potential underlying mechanisms. MethodsSixty male SD rats were randomly divided into a normal group, a model group, and low-, medium-, and high-dose CJLM groups(2.89, 5.78, 11.56 g·kg-1), as well as a fluoxetine group(10 mg·kg-1). Except for the normal group, all other groups were subjected to social isolation combined with CUMS for 63 d. During the first 35 d, depression models were established only, and from day 36 onward, modeling and drug administration were conducted simultaneously for a total intervention period of 28 d. Depression-like behaviors were evaluated using the sucrose preference test, open-field test, and forced swimming test. Hematoxylin-eosin(HE) staining was performed to observe hippocampal histomorphology. Immunohistochemistry(IHC) was used to detect the expression levels of ionized calcium-binding adapter molecule 1(Iba1) and gasdermin D(GSDMD) proteins in the hippocampus. Western blot analysis was employed to determine the protein expression levels of adenosine 5′-monophosphate(AMP)-activated protein kinase(AMPK) and phosphorylated(p)-AMPK, silent information regulator 1(SIRT1), nuclear factor-κB(NF-κB) and p-NF-κB, NOD-like receptor protein 3(NLRP3), and Caspase-1 in the hippocampus. Real-time quantitative polymerase chain reaction(Real-time PCR) was used to detect the mRNA expression levels of tumor necrosis factor-α(TNF-α), interleukin(IL)-6, and IL-1β in the hippocampus. ResultsCompared with the normal group, the model group showed a decreased sucrose preference rate(P<0.01), reduced total movement distance(P<0.01), prolonged immobility time(P<0.01), and decreased central zone residence time(P<0.01) in the open-field test, and increased immobility time in the forced swimming test(P<0.01). Hippocampal neuronal structure was damaged. The contents of Iba1 and GSDMD in the hippocampus were significantly increased(P<0.01). The protein expression levels of p-AMPK and SIRT1 in the hippocampus were significantly decreased(P<0.01), whereas the protein expression levels of p-NF-κB, NLRP3, and Caspase-1 were significantly increased(P<0.01). The mRNA expression levels of IL-1β, IL-6, and TNF-α in the hippocampus were significantly upregulated(P<0.01). Compared with the model group, the low-, medium-, and high-dose CJLM groups and the fluoxetine group all were able to reverse depression-like behavioral changes, as evidenced by increased sucrose preference rate, increased total movement distance with shortened immobility time in the open-field test, prolonged central zone residence time, and reduced immobility time in the forced swimming test(P<0.05, P<0.01). Meanwhile, hippocampal neuronal structural damage was alleviated. In the hippocampus, the expression levels of Iba1 and GSDMD were downregulated, the expression levels of p-AMPK and SIRT1 were upregulated, and the abnormal elevations of p-NF-κB, NLRP3, Caspase-1, as well as IL-1β, IL-6, and TNF-α mRNA were suppressed(P<0.05, P<0.01). ConclusionCJLM can ameliorate depression-like behaviors in rats subjected to social isolation combined with CUMS and attenuate hippocampal neuroinflammation and pyroptosis, suggesting that its effects may be associated with the regulation of AMPK/SIRT1/NF-κB/NLRP3 signaling pathway.
5.Correlation of social anxiety and emotion regulation strategy with short video addiction in college students
WANG Wenting, ZHANG Zhonglou, SONG Jinqiu, XU Haipeng, RUAN Jie
Chinese Journal of School Health 2026;47(4):548-552
Objective:
To explore the relationship of social anxiety and emotion regulation strategy with short video addiction among college students, so as to provide reference for alleviating social anxiety, improving the level of emotion regulation and preventing short video addiction.
Methods:
From May to June 2024, 2 172 college students from a university in Guangzhou were selected by multistage random cluster sampling method. The Interaction Anxiousness Scale, Emotion Regulation Questionnaire and Short Video Addiction Scale were used as the measurement tools. The potential profile was used to analyze the potential categories of social anxiety and emotion regulation strategy. The Chi square test was used to analyze the characteristics of the distribution of potential profile categories of college students with different demographic characteristics. Multiple linear regression analysis was used to analyze the relationship between social anxiety, emotion regulation strategy and short video addiction.
Results:
The potential categories of social anxiety and emotion regulation strategy in college students were divided into adaptive regulation type (784 cases, 36.10 %), low anxiety-expression type (623 cases, 28.68%), inhibition-anxiety type (478 cases, 22.01%), high anxiety-disorder type (287 cases, 13.21%). There were statistically significant differences in the distribution of various potential categories of social anxiety and emotion regulation strategy among cadres of different gender, family residence, class cadres or not ( χ 2=42.55, 17.86 , 39.05, all P <0.01). Multiple linear regression analysis showed that after controlling the confounding factors such as demographic variables, the potential categories of social anxiety and emotion regulation strategy of college students (low anxiety-expression type, inhibition-anxiety type, high anxiety-disorder type) were the important related factors of short video addiction ( β =0.15,0.25,0.35, all P <0.05).
Conclusions
Social anxiety and emotion regulation strategy of college students exhibit distinct categorical characteristics, and its varying latent categories are associated with short video addiction. Schools should implement targeted intervention measures for different categories of college students to promote their comprehensive mental health development.
6.Effects of prostaglandin E2 injection into the median preoptic nucleus on body temperature in female mice and its mechanisms
Ya LI ; Yi’an SONG ; Qiaofeng JI ; Lei XU ; Jie ZHANG ; Jianhui XU ; Xiaoyu HOU
Acta Universitatis Medicinalis Anhui 2026;61(2):250-257
ObjectiveTo investigate the effects of prostaglandin E2 (PGE2) microinjection into the median preoptic nucleus (MnPO) on core body temperature in female mice, and to clarify its underlying mechanism. MethodsMicroinjection cannula were implanted into the MnPO of female mice using stereotaxic surgery.Subsequently, a multi-channel temperature acquisition system was used to simultaneously monitor rectal and brown adipose tissue (BAT) temperatures before and after intra-MnPO injections of different reagents.To investigate the thermoregulatory effects of the microinjection of PGE2 into the MnPO, 12 female C57BL/6 mice were randomly divided into a saline group (n=6) and a PGE2 group (n=6), which were injected with 0.1 μL saline and PGE2 (2.8 mmol/L), respectively.To determine whether E-series prostaglandin receptor (EP)1, EP3, and EP4 receptors mediate the thermoregulatory effects of PGE2, 15 female C57BL/6 mice were randomly divided into 3 groups (n=5 per group).Mice in each group first received an injection of 0.1 μL PGE2 (2.8 mmol/L) into the MnPO. After their body temperature returned to baseline levels, they were subsequently injected with a mixture of either EP1, EP3 or EP4 antagonist (ant) (20 mmol/L) + PGE2 (2.8 mmol/L). ResultsCompared with baseline level, the rectal temperature (P<0.01) and BAT temperature (P<0.001) of female mice both increased significantly after microinjection of PGE2 into the MnPO.Compared with the saline group, the increases in rectal temperature (P<0.001) and BAT temperature (P<0.000 1) were significantly greater in the PGE2 group of mice.Furthermore, following the injection of PGE2 into MnPO, the increase in BAT temperature was found to be significantly greater than that in rectal temperature in mice (P<0.001).Compared to the administration of PGE2 alone, co-injection of an EP3 ant + PGE2 into the MnPO of mice resulted in a significantly smaller increase in both rectal temperature (P<0.001) and BAT temperature (P<0.001).In contrast, the increases in rectal and BAT temperatures following MnPO injection of either EP1 ant + PGE2 or EP4 ant + PGE2 were not statistically significant (P>0.05). ConclusionInjection of PGE2 into the MnPO elevates BAT and core body temperature in female mice via the EP3 receptor.
7.Study on the safety and efficacy of micro-perfusion device for preserving isolated porcine limbs
Pengkai LI ; Zhaodi MI ; Shen LI ; Man YUAN ; Xiwei PENG ; Jia LÜ ; Sice WANG ; Zhibo JIA ; Xiangyu SONG ; Yixuan ZHU ; Chonghui LI ; Moling XIAO ; Wenjing XU ; Jiang PENG
Organ Transplantation 2026;17(3):422-431
Objective To evaluate the safety and efficacy of a self-developed micro-normothermic machine perfusion (NMP) system (micro-perfusion device) for preserving isolated porcine limbs. Methods Five healthy Landrace pigs were selected, and their left and right forelimbs were randomly divided into the NMP group and static cold storage (SCS) group. The NMP group was perfused with the self-developed micro-perfusion device and polymerized hemoglobin perfusate for 32 hours at normothermia, while the SCS group was preserved at 4 ℃. Hemodynamic parameters such as perfusion pressure and flow were monitored. The pH value, partial pressure of oxygen (PO2), lactic acid (Lac), creatine kinase (CK) and lactate dehydrogenase (LDH) in the perfusate were measured. Hematoxylin-eosin staining was used to assess the muscle tissue structure, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling was employed to evaluate muscle cell apoptosis, and immunohistochemistry staining was applied to detect the expressions of tumor necrosis factor (TNF)-α and interleukin (IL)-6. A mixed-effects model was used to analyze the effects of time and treatment methods on tissue structure, cell apoptosis and inflammatory factors. Results The device could stably maintain a perfusion pressure of (69±15) mmHg and a flow rate of (117±42) mL/min. The pH value and electrolytes of the perfusate were generally stable, with PO2 maintained at a high level. Lac was maintained at 5.38(3.81, 6.45) mmol/L, while CK and LDH increased over time. After 32 hours of perfusion in the NMP group, both the myocyte spacing and apoptosis rate were better than those in the SCS group. Mixed-effects model analysis showed that there were statistically significant differences in the effects of NMP treatment and SCS treatment on myocyte spacing and apoptosis rate per unit time (both P < 0.05). There were no statistically significant differences in TNF-α and IL-6 between the two groups, and mixed-effects model analysis showed no statistically significant differences in the effects of NMP treatment and SCS treatment on TNF-α and IL-6 per unit time (both P > 0.05). Conclusions The micro-perfusion device used in this study may achieve 32-hour normothermic preservation in a porcine limb amputation model, maintain basic metabolism and ionic homeostasis, reduce muscle structural damage and cell apoptosis without inducing additional inflammatory responses. This technology is expected to significantly extend the time window for replantation of amputated limbs in disaster rescue and long-distance transportation, providing an important technical basis for clinical translation and subsequent replantation research.
8.Study on the effect and mechanism of processed Oxytropis falcata in improving renal fibrosis in rats
Qing ZHANG ; Xinhuan MA ; Mingjing YANG ; Zhiwei XU ; Wenjing WANG ; Hui SONG
China Pharmacy 2026;37(9):1167-1172
OBJECTIVE To investigate the improvement effect and mechanism of processed Oxytropis falcata on renal fibrosis (RF) in rats. METHODS RF model was induced by adenine. After modeling, the rats were divided into the model group, positive control group (colchicine, 0.45 mg/kg), and processed O. falcata low-, medium- and high-dose groups (0.5, 1, 2 g/kg), respectively. Additionally, a blank group without modeling was set up, with 8 rats in each group. The positive control group and the various dosage groups of processed O. falcata were given the corresponding medicinal solutions intragastrically, while the blank group and model group were given equal volume of normal saline intragastrically, once daily for 28 consecutive days. The appearance and histopathological morphology of the rats’ kidneys were observed. Serum levels of renal function indexes [bl ood urea nitrogen (BUN), creatinine (Cr) ] and inflammatory factors [interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) ] in rats were detected. Protein expressions of fibronectin (FN), α -smooth muscle actin ( α -SMA) and collagen type Ⅰ (Col-Ⅰ) in renal tissue of rats were determined. mRNA expressions of transforming growth factor-β 1 (TGF-β 1 ), Smad3 and extracellular signal-regulated kinase 1/2 (ERK1/2) in renal tissues were measured. Protein expression of TGF-β 1 and phosphorylation levels of Smad3 and ERK1/2 in renal tissues were detected. RESULTS Compared with the blank group, the rats in the model group exhibited enlarged kidneys with pale color, rough and uneven surface. There was a significant infiltration of inflammatory cells and vacuolated cells in the renal tubules, along with marked proliferation of collagen fibers. Serum levels of BUN, Cr, IL-6 and TNF-α, protein expressions of α -SMA, Col-Ⅰ and FN in renal tissues, mRNA expressions of TGF-β 1 , Smad3, ERK1 and ERK2 and protein expression of TGF-β 1 as well as phosphorylation levels of Smad3 and ERK1/2 in renal tissues were increased significantly ( P <0.05). Compared with the model group, renal pathological changes of rats were alleviated in processed O. falcata groups, with reduced infiltration of inflammatory cells and proliferation of collagen fibers. The levels of the aforementioned quantitative indicators were all significantly reversed ( P <0.05). CONCLUSIONS Processed O. falcata can improve renal function in RF rats, alleviate inflammatory responses, and reduce abnormal collagen fiber deposition. Its mechanism of action may be related to the inhibition of the activity of the TGF-β 1 /Smad signaling pathway.
9.Exploring Chemical Constituent Distribution in Blood/Brain(Hippocampus) and Emotional Regulatory Effect of Raw and Vinegar-processed Products of Citri Reticulatae Pericarpium Viride
Yi BAO ; Yonggui SONG ; Qianmin LI ; Zhifu AI ; Genhua ZHU ; Ming YANG ; Huanhua XU ; Qin ZHENG ; Yiting HUANG ; Zihan GAO ; Dan SU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):189-197
ObjectiveTo investigate the migration and distribution characteristics of chemical constituents in blood and hippocampal tissues before and after vinegar processing of Citri Reticulatae Pericarpium Viride(CRPV), and to explore the potential material basis and mechanisms underlying their regulatory effects on emotional disorders by comparing the effects of raw and vinegar-processed products of CRPV. MethodsUltra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS/MS) was employed to characterize and identify the chemical constituents of raw and vinegar-processed products of CRPV extracts, as well as their migrating components in blood and hippocampal tissues after oral administration. Reference standards, databases, and relevant literature were utilized for compound annotation, with data processing performed using PeakView 1.2 software. Seventy male C57BL/6 mice were randomly divided into seven groups, including the blank group, model group, diazepam group(2.5 mg·kg-1), raw CRPV low/high dose groups(0.6, 1.2 g·kg-1), and vinegar-processed CRPV low/high dose groups(0.6, 1.2 g·kg-1), with 10 mice per group. Except for the blank group, all other groups underwent chronic restraint stress(2 h·d-1) for 20 d. Each drug-treated group received oral administration at the predetermined dose starting 10 d after modeling, with a total treatment duration of 10 d. Following model-based drug administration, mice underwent open-field, forced swimming, and elevated plus maze tests. After anesthesia with isoflurane, whole brains were collected from each group of mice, and hippocampi were dissected. Reactive oxygen species(ROS) level in hippocampal tissues was quantified by enzyme-linked immunosorbent assay(ELISA). Hematoxylin-eosin(HE) staining was used to observe hippocampal tissue morphology. Immunofluorescence was performed to detect neuronal nuclei(NeuN) and peroxisome proliferator-activated receptor alpha(PPARα) expressions in hippocampal tissue. Then, pharmacodynamic evaluations were conducted to assess the effects of raw and vinegar-processed CRPV on mood disorders, exploring the potential mechanisms. ResultsVinegar processing caused significant changes in the chemical composition of CRPV, with 18 components showing increased relative content and 35 components showing decreased relative content. The primary changes occurred in flavonoid compounds, including 20 flavonoids, 20 flavonoid glycosides, 3 triterpenes, 3 phenolic acids, 1 alkaloid, and 6 other compounds. Twenty-one components were detected in blood(15 methoxyflavones, 4 flavonoid glycosides, and 2 phenolic acids), with 17 shared between raw and vinegar-processed CRPV. Seven components reached hippocampal tissues(all common to both forms). In regulating emotional disorders, Vinegar-processed CRPV exhibited superior antidepressant-like effects compared to raw products. HE staining revealed that both treatments improved hippocampal neuronal morphology, particularly in the damaged CA1 and CA3 regions. Immunofluorescence and ELISA analyses demonstrated that both raw and vinegar-processed CRPV significantly modulated NeuN and PPARα expressions in hippocampal tissue while alleviating oxidative stress induced by excessive ROS(P<0.05). ConclusionThe chemical composition of CRPV undergoes changes after vinegar processing, but the migrating components in blood and hippocampus are primarily methoxyflavonoids. These components may serve as the potential material basis for activating the PPARα pathway, thereby negatively regulating ROS generation in the hippocampus, reducing oxidative stress, and promoting the development of NeuN-positive neurons. These findings provide experimental evidence for enhancing quality standards, pharmacodynamic material research, and active drug development of raw and vinegar-processed CRPV.
10.Advances in the application of machine learning in the prediction of adverse drug reactions
Mengjia XU ; Lin SONG ; Tingting YANG ; Chenrong HUANG
China Pharmacy 2026;37(1):105-110
Adverse drug reactions (ADRs) refer to harmful or unintended reactions unrelated to the intended purpose of medication administration, which can lead to various issues such as accelerated disease progression and prolonged hospitalization. Traditional ADRs monitoring systems (such as spontaneous reporting systems) suffer from limitations such as low reporting rates and inconsistent data quality, which hinder the early prevention and control of ADRs. With the rapid development of information technology, machine learning has emerged as a powerful tool for management and decision-making of ADRs by leveraging its strengths in feature extraction and dynamic temporal pattern analysis. By reviewing relevant literature at home and abroad in recent years, this paper summarizes the progress in the application of machine learning for ADRs prediction. It is found that machine learning has gradually been applied to the early warning and risk prediction of ADRs in target organs such as the kidneys, liver, heart and bone marrow (such as acute kidney injury, drug-induced liver injury, and so on). Although machine learning demonstrates significant application potential in the field of ADRs prediction, it still faces limitations such as inadequate quality control of clinical data, lack of standardized criteria for model performance evaluation, insufficient model interpretability and difficulties in clinical translation. In the future, the development trend of machine learning in the field of ADRs prediction should follow a “technology-validation-integration” pathway to systematically promote the practical implementation of models.


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