1.Effect of Yang-Reinforcing and Blood-Activating Therapy on the Long-Term Prognosis for Dilated Cardio-myopathy Patients with Yang Deficiency and Blood Stasis Syndrome:A Retrospective Cohort Study
Shiyi TAO ; Jun LI ; Lintong YU ; Ji WU ; Yuqing TAN ; Xiao XIA ; Fuyuan ZHANG ; Tiantian XUE ; Xuanchun HUANG
Journal of Traditional Chinese Medicine 2026;67(1):53-59
ObjectiveTo evaluate the impact of yang-reinforcing and blood-activating therapy on the long-term prognosis for patients with dilated cardiomyopathy (DCM) of yang deficiency and blood stasis syndrome. MethodsA retrospective cohort study was conducted involving 371 DCM patients with yang deficiency and blood stasis syndrome. The yang-reinforcing and blood-activating therapy was defined as the exposure factor. Patients were categorized into exposure group (186 cases) and non-exposure group (185 cases) according to whether they received yang-reinforcing and blood-activating therapy combined with conventional western medicine for 6 months or longer. The follow-up period was set at 48 months, and the Kaplan-Meier survival analysis was used to assess the cumulative incidence of major adverse cardiovascular events (MACE) in both groups. Cox regression analysis was used to explore the impact of yang-reinforcing and blood-activating therapy on the risk of MACE, and subgroup analysis was performed. Changes in traditional Chinese medicine (TCM) syndrome score, left ventricular ejection fraction (LVEF), left ventricular fractional shortening (LVFS), left ventricular end-diastolic diameter (LVEDD), and Minnesota Living with Heart Failure Questionnaire (MLHFQ) score were compared between groups at the time of first combined use of yang-reinforcing and blood-activating therapy (before treatment) and 1 year after receiving the therapy (after treatment). ResultsMACE occurred in 31 cases (16.67%) in the exposure group and 47 cases (25.41%) in the non-exposure group. The cumulative incidence of MACE in the exposure group was significantly lower than that in the non-exposure group [HR=0.559, 95%CI(0.361,0.895), P=0.014]. Cox regression analysis showed that yang-reinforcing and blood-activating therapy was an independent factor for reducing the risk of MACE in DCM patients [HR=0.623, 95%CI(0.396,0.980), P=0.041], and consistent results were observed in different subgroups. Compared with pre-treatment, the exposure group showed decreased TCM syndrome score and MLHFQ score, reduced LVEDD, and increased LVEF and LVFS after treatment (P<0.05); in the non-exposure group, TCM syndrome score decreased, LVEF and LVFS increased, and LVEDD reduced after treatment (P<0.05). After treatment, the exposure group had higher LVEF and LVFS, smaller LVEDD, and lower TCM syndrome score and MLHFQ score compared with the non-exposure group (P<0.05). ConclusionCombining yang-reinforcing and blood-activating therapy with conventional western medicine can reduce the risk of MACE in DCM patients with yang deficiency and blood stasis syndrome, meanwhile improving their clinical symptoms, cardiac function, and quality of life.
2.Structural and Functional Abnormalities of White-matter Tracts in Male College Smokers
Xiao-Jiao LI ; Da-Hua YU ; Ting XUE ; Kai YUAN ; Zhen-Zhen MAI ; Xu-Wen WANG ; Fang DONG ; Juan WANG ; Yu-Xin MA
Progress in Biochemistry and Biophysics 2026;53(6):1770-1779
ObjectiveThe present study aimed to investigate alterations in white matter microstructure and spontaneous neural activity in male college smokers, and to further explore their associations with nicotine dependence. Given that adolescence and early adulthood represent critical periods for brain maturation, particularly for white matter development, understanding the neural correlates of smoking behavior during this stage is of substantial importance for both neuroscience and public health. MethodsA total of 115 male undergraduate students were initially recruited for this study. After quality control and exclusion procedures, 52 male college smokers and 42 demographically matched healthy non-smokers were included in the final analysis. All participants underwent multimodal magnetic resonance imaging (MRI), including diffusion tensor imaging (DTI) and resting-state functional MRI (rs-fMRI). White matter fiber tracts were reconstructed using the automated fiber quantification (AFQ) method, which enables precise identification and quantification of major fiber bundles. Eighteen major white matter tracts were segmented for each participant. Along the core trajectory of each tract, 100 equidistant nodes were sampled. Fractional anisotropy (FA) was calculated at each node to assess white matter microstructural integrity, while amplitude of low-frequency fluctuation (ALFF) was computed to evaluate spontaneous neural activity within white matter tracts. Between-group differences in FA and ALFF were assessed using two-sample t-tests, with appropriate corrections applied for multiple comparisons. Furthermore, Pearson correlation analyses were conducted to examine the relationships between imaging-derived metrics (FA and ALFF values in regions showing significant group differences) and nicotine dependence severity, as measured by the Fagerström test for nicotine dependence (FTND). ResultsCompared with healthy non-smokers, male college smokers exhibited significantly increased FA values in several white matter tracts, including the left thalamic radiation, right corticospinal tract, forceps major of the corpus callosum, left uncinate fasciculus, and right arcuate fasciculus. These findings suggest altered microstructural organization or increased directional coherence within these pathways. In addition, smokers demonstrated significantly elevated ALFF values in the forceps major, right uncinate fasciculus, and left arcuate fasciculus, indicating enhanced spontaneous neural activity in these white matter regions. Correlation analyses revealed that FA values in the left thalamic radiation and right corticospinal tract were negatively correlated with FTND scores, suggesting that higher levels of nicotine dependence were associated with reduced microstructural integrity or altered fiber organization in these regions. In contrast, ALFF values in the forceps major and right uncinate fasciculus were positively correlated with FTND scores, indicating that greater nicotine dependence was associated with increased spontaneous neural activity in specific white matter pathways. ConclusionThe present study provides evidence that male college smokers exhibit distinct alterations in both white matter microstructure and functional activity. These abnormalities are not uniformly distributed but rather localized to specific fiber tracts implicated in sensorimotor processing, interhemispheric communication, and higher-order cognitive and emotional regulation. Importantly, the observed associations between imaging metrics and nicotine dependence severity suggest that these structural and functional alterations may reflect neurobiological mechanisms underlying addiction. The combination of AFQ-based tract profiling and multimodal MRI offers a sensitive approach for detecting subtle changes along white matter pathways, highlighting its potential utility in identifying neuroimaging biomarkers of nicotine dependence. Overall, these findings indicate that smoking during early adulthood may disrupt ongoing white matter maturation, potentially leading to long-term consequences for brain function. This study provides novel insights into the neural basis of nicotine dependence and underscores the importance of early intervention and prevention strategies targeting young smokers.
3.Analysis of the incidence and associated factors of cyclosporine-associated acute kidney injury in hospitalized patients based on real-world data
Yaqing DOU ; Jiahui LAO ; Xue WANG ; Yanying SUN ; Xin HUANG ; Hanbing LI ; Xiao LI
China Pharmacy 2026;37(12):1584-1589
OBJECTIVE To analyze the incidence of cyclosporine (CsA)-associated acute kidney injury (AKI) in hospitalized patients, identify influencing factors, and construct a risk prediction model. METHODS A single-center retrospective study was conducted, enrolling clinical data from hospitalized patients treated with CsA at the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital from January 2018 to July 2024. The patients were classified into AKI group and non-AKI group based on the occurrence of CsA-related AKI. Univariate analysis and multivariate Logistic regression analysis were used to identify independent risk factors for CsA-related AKI, and a risk prediction model was constructed and its performance was evaluated. RESULTS A total of 439 patients were included, of whom 54 developed CsA-related AKI, with an incidence rate of 12.30%. The occurrence of CsA-associated AKI was positively correlated with concurrent bacterial pulmonary infection, cytomegalovirus viremia, respiratory failure, renal insufficiency, gastrointestinal bleeding, and peripheral central venous catheterization (odds ratios of 763.750, 16.944, 41.933, 236.806, 17.537 and 212.789, respectively; P <0.05); while uric acid, prealbumin, and calcium levels were negatively associated with it (odds ratios of 0.983, 0.967 and 0.058, respectively; P <0.05). The prediction model constructed based on the above factors yielded a χ 2 value of 10.254 ( P >0.05) in the Hosmer-Lemeshow test. The average area under the curve (AUC) from 10-fold cross-validation was 0.885. The AUC of the receiver operating characteristic curve was 0.883, with a sensitivity of 84.3% and a specificity of 80.4%, respectively, at the optimal cutoff value of 0.1. CONCLUSIONS Six factors, including concurrent bacterial pulmonary infection and cytomegalovirus viremia, are positively associated with the occurrence of CsA-related AKI; while uric acid, prealbumin, and calcium levels are negatively associated. The Logistic regression model constructed based on these factors demonstrates good predictive performance and can assist clinic in conducting early risk assessment and personalized interventions.
4.Comparative analysis of the characteristics of imported malaria cases in Nanning City in 2024 and the same period of the previous year
Shu-lin WEI ; Zhi-qiang QU ; Yuan-yuan LUO ; Yan-cui HUANG ; Shu-qin DIAO ; Xue LI ; Sheng-long YANG ; Xiao-yu HUANG ; Mi-fang LUO
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):81-84
Objective To investigate the epidemiological characteristics of malaria and provide a basis for developing improved prevention and control measures. Methods Data were obtained from the Chinese Disease Prevention and Control Information System. Malaria surveillance data for Nanning City from January 1,2023, to December 31,2024, were exported from the Infectious Disease Reporting Information Management Subsystem. The characteristics of the two groups of malaria cases were compared. Results A total of 103 imported malaria cases were reported in Nanning City in 2024, representing a 38.32% decrease compared with the same period of the previous year. No statistically significant difference were observed between cases reported in 2023 and 2024 in terms of average age, gender ratio, proportion of parasite species, and monthly reporting distribution;however, statistically significant differences were found in the proportion of reporting areas and current residence areas(χ2= 13.572 and 10.355, respectively; P = 0.001 and 0.035, respectively). The proportion of cases reported in Shanglin County and the proportion of cases residing in Shanglin County were both lower than those during the same period of the previous year. Conclusions The high aggregation of imported malaria cases in Nanning City has decreased. Medical institutions in areas other than Shanglin County should strengthen their vigilance against malaria.
5.The first record of Anopheles messeae (Diptera: Culicidae) parasitized by water mites in China
Xue-ru CHEN ; Wen-zhen YAO ; Yu-hao LI ; Gui-chang LI ; Tao MENG ; Qun-ling FENG ; Xin-hui LIU ; Li-hong QIAO ; Xiang-ting WU ; Xue-feng ZHANG ; Cheng-lin LI ; Xue-cheng DONG ; Da-wei WANG ; Xiao-yan SI ; Yu-hong GUO
Acta Parasitologica et Medica Entomologica Sinica 2026;33(1):53-57
Objective This study reports on the obligatory parasitism of water mites Arrenurus sp. on Anopheles messeae at the Manzhouli Port, Inner Mongolia, China. Methods Duing July 2024, a survey on the mosquito diversity was conducted at the Manzhouli Port. Captured mosquitoes and their ectoparasites were identified to species level. Results A total of 1840 adult mosquitoes were collected, representing species from three genera: Culex(Cx. modestus, Cx. pipiens pallens), Aedes(Ae. dorsalis, Ae. flavidorsalis, Ae. flavescens), and Anopheles (An. messeae). Among all the mosqutioes specimens,3 out of 150 captured An. messeae were found to carry ectoparasitic mites, with number of 2,4,27 mites separately. Morphological and molecular identification reached the same result as water mites(Hydrachnidiae, Hydracrina). COI gene sequence showed 94% similarity with the closest species Arrenurus truncatellus. Conlusions Literature review suggests water mites are host-specific parasitism of mosquito species and herein with the first record of Arrenurus sp. parasiting on An. Messeae in the most high-latitude region globally.
6.Kaixuan Jiedu Core Prescription Ameliorates Psoriasis Induced by IMQ Combined with Restraint Stress in Mice by Regulating Neuro-immune Axis and Inhibiting Skin Homing of Th17 Cells
Haoruo YANG ; Ningxin ZHANG ; Qiubai JIN ; Jiaqi LI ; Xue XIAO ; Meiqi SUN ; Bin YANG ; Ping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):55-68
ObjectiveTo observe the effect and therapeutic effect of Kaixuan Jiedu core prescription (KXJD) on skin homing of Th17 cells in the mouse model of imiquimod (IMQ) combined with restraint stress-induced psoriasis-like skin damage, and to explore its potential mechanism from the perspective of neuro-immune axis. MethodsThirty male C57BL/6J mice were randomly allocated into five groups (n=6): Control, model (IMQ), restraint stress model (IMQ+RS), KXJD, and methotrexate (MTX). The mouse model of psoriasis-like skin damage was established by 5% IMQ combined with restraint stress. At the same time of modeling, each treatment group was treated with corresponding doses of drugs, and the control, IMQ, and IMQ+RS groups were treated with the same amount of normal saline by gavage once a day for 5 days. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in the skin tissue and Baker scoring was performed. Serum levels of interleukin-1β (IL-1β) and angiopoietin-2 (Ang-2) were measured by enzyme-linked immunosorbent assay (ELISA). The levels of matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1), C-C motif chemokine ligand 20 (CCL20), and C-C motif chemokine receptor 6 (CCR6) in the skin tissue were determined. Immunohistochemistry (IHC) was employed to determine the protein expression of cutaneous lymphocyte-associated antigen (CLA), integrin αE (CD103), cytokeratin 10 (CK10), and nuclear factor-kappa B (NF-κB) in the skin. Immunofluorescence double staining (DIF) was adopted to detect the expression and co-localization of vascular endothelial cadherin (VE-cadherin) and platelet-endothelial cell adhesion molecule (CD31), CCR6, CD103, substance P (SP), calcitonin gene-related peptide (CGRP), and protein gene product 9.5 (PGP9.5) in the skin tissue. Real-time PCR was employed to quantify the mRNA levels of IL-10, IL-17A, and IL-23. ResultsCompared with the control group, the IMQ group and IMQ+RS group showed significant inflammatory cell infiltration, abnormal proliferation of epidermal cells, keratinization and other pathological changes in the skin tissue, and a significant increase in Baker score, elevated levels of IL-1β and Ang-2 in the serum and MMP-9, CCL20 and CCR6 in the skin lesions, upregulated expression of CLA, CD103, CK10, NF-κB, IL-17A mRNA, and IL-23 mRNA in the skin lesions, and downregulated expression of TIMP-1 and IL-10 mRNA. In addition, the fluorescence intensities of VE-cadherin and CD31 co-localization, CCR6 and CD103 co-localization, SP and PGP9.5 co-localization, and CGRP and PGP9.5 co-localization were increased (P<0.05). Compared with the IMQ group, the above indicators in the IMQ+RS group were further aggravated. Compared with the IMQ group, the above indicators in the IMQ+RS group were further aggravated. Compared with the IMQ+RS group, KXJD and MTX significantly alleviated the pathological damage of skin lesions, significantly decreased the Baker score, lowered the levels of IL-1β and Ang-2 in the serum and MMP-9, CCL20 and CCR6 in skin lesions, downregulated the expression of CLA, CD103, CK10, NF-κB, IL-17A mRNA and IL-23 mRNA in skin lesions, and upregulated the expression of TIMP-1 and IL-10 mRNA. Furthermore, KXJD and MTX reduced the fluorescence intensities of VE-cadherin and CD31 co-localization, CCR6 and CD103 co-localization, CGRP and PGP9.5 co-localization, and SP and PGP9.5 co-localization (P<0.05). ConclusionKXJD can significantly ameliorate the psoriasis-like skin damage induced by IMQ combined with restraint stress in mice by regulating the neural-immune axis and inhibiting the skin homing of Th17 cells.
7.Construction of Mouse Models of Psoriasis-like Lesions Induced by Cold Exposure Combined with Imiquimod and Evaluation of Therapeutic Efficacy of Kaixuan Jiedu Core Prescription
Meiqi SUN ; Xue XIAO ; Jiarong WU ; Jiaqi LI ; Ningxin ZHANG ; Mengyao JIANG ; Huan LIU ; Bin YANG ; Ping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):69-78
ObjectiveTo establish the mouse models of psoriasis-like lesions induced by continuous cold exposure or intermittent cold exposure combined with imiquimod (IMQ), and to evaluate the interventional effects of Kaixuan Jiedu core prescription (KXJD) on the two models. MethodsMale C57BL/6J mice were selected and classified into two experimental batches. The first batch of 36 mice was randomized into a room temperature group, a continuous cold exposure (10 ℃/24 h) group, and an intermittent cold exposure (10 ℃/6 h) group. Each group was further divided into a normal subgroup and a model subgroup (topical application of IMQ to induce skin lesions), with 6 mice in each subgroup, for modeling and evaluation. The second batch of 54 mice, with 6 in each group, were subjected to the same temperature grouping with an additional KXJD (30.42 g·kg-1, continuous gavage for 5 days) group. Comprehensive evaluation of model characteristics and KXJD efficacy was conducted through Psoriasis Area and Severity Index (PASI) scoring, skin temperature measurement by infrared thermography, histopathological observation by hematoxylin-eosin (HE) staining, detection of vascular endothelial growth factor (VEGF) and platelet endothelial cell adhesion molecule 1 (CD31) by immunohistochemistry, detection of Claudin-1 and Occludin by immunofluorescence assay, determination of serum levels of tumor necrosis factor-α (TNF-α) and interleukin (IL)-10 by enzyme-linked immunosorbent assay (ELISA), and quantification of mRNA levels of IL-17A, IL-23, IL-6, and chemokine ligand 20 (CCL20) in skin lesions by quantitative Real-time polymerase chain reaction (Real-time PCR). ResultsModel mice in all temperature groups exhibited typical psoriasis-like skin lesions. Compared with the normal groups, the model groups showed increased PASI scores, decreased skin temperatures (P<0.05), obvious epidermal thickening, parakeratosis, and dermal inflammatory cell infiltration, as well as elevated mRNA levels of IL-17A, IL-23, IL-6, and CCL20 (P<0.05). Cold exposure further aggravated psoriasis. The total PASI score of the intermittent cold exposure model group was higher than that of the room temperature model group (P<0.05). The serum IL-10 did not show a compensatory elevation, and the blood vessels presented a characteristic of elevated CD31 expression (P<0.05) without a synchronous increase in VEGF. The continuous cold exposure model group exhibited more significant dermal capillary tortuosity and dilation, with the highest mRNA levels of IL-17A, IL-23, IL-6, and CCL20 among all groups. Compared with the respective model groups, KXJD intervention alleviated skin lesions, reduced epidermal thickness and inflammatory cell infiltration, and increased skin temperature, with the temperature increase being particularly significant in the intermittent cold exposure+KXJD group (P<0.05). Furthermore, KXJD down-regulated the expression of VEGF and CD31, restored the expression of Claudin-1 and Occludin, decreased the mRNA levels of IL-17A and IL-23 (P<0.05), and reduced the serum TNF-α level. ConclusionThis study successfully established compound psoriasis-like mouse models induced by cold exposure combined with IMQ. It confirms that cold aggravates the severity of psoriasis by exacerbating the closure of Xuanfu (sweat pores), microcirculation disorders, and immune imbalance. Moreover, different cold exposure patterns have distinct mechanism differences. Continuous cold exposure focuses on enhancing the inflammatory response via the IL-23/IL-17 axis and angiogenesis, simulating chronic aggravation under a long-term cold environment. Intermittent cold exposure tends to impair immune regulation and induce microvascular endothelial stress, corresponding to acute exacerbations caused by sudden temperature drops. KXJD can effectively alleviate psoriasis-like skin lesions under cold conditions by unblocking Xuanfu, regulating vasomotor function, and correcting abnormal immune-inflammatory responses.
8.Kaixuan Jiedu Core Prescription Alleviates Psoriatic Skin Lesions in Mice by Modulating Cold-sensitive TRPM8 Neuron-derived Signaling
Xue XIAO ; Bin YANG ; Meiqi SUN ; Haoruo YANG ; Ningxin ZHANG ; Jiaqi LI ; Huan LIU ; Mengyao JIANG ; Yuanyao SHE ; Ping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):89-101
ObjectiveTo investigate the ameliorative effects of Kaixuan Jiedu core prescription (KXJD) on skin lesions in psoriasis-like mouse models under cold environment exposure, and to analyze its influences on transient receptor potential (TRP) channels and related neuroimmune regulatory factors. MethodsThirty-six C57BL/6J mice were randomized into 6 groups, with 6 mice in each group. Two feeding conditions were set: Normal temperature and cold [simulating a cold environment at (10±0.5) ℃, for 6 h daily]. Mice were induced to develop psoriasis-like lesions by applying imiquimod externally. The model mice were allocated into model groups and KXJD (30.42 g·kg-1, continuous gavage for 5 days) groups. Normal mice were used as the control group. Specifically, mice were allocated into normal temperature, normal temperature model, normal temperature+KXJD, cold exposure control, cold exposure model, and cold exposure+KXJD groups. The pathological changes in skin lesions were observed by hematoxylin-eosin (HE) staining. The expression of cluster of differentiation (CD) 3+ T lymphocytes, CD11c+ dendritic cells (DCs), phosphorylated extracellular signal-regulated kinase (p-ERK), and substance P (SP) were detected by immunofluorescence assay. The protein level of transient receptor potential cation channel subfamily M member 8 (TRPM8) in the skin tissue was determined by Western blot. The expression of TRPM8, transient receptor potential cation channel subfamily V member 1 (TRPV1), transient receptor potential cation channel subfamily A member 1 (TRPA1), and transient receptor potential cation channel subfamily V member 2 (TRPV2) at the protein and mRNA levels was determined by immunohistochemistry and Real-time PCR, respectively. The levels of calcitonin gene-related peptide (CGRP) and neuropeptide Y (NPY) in the serum were analyzed by enzyme-linked immunosorbent assay (ELISA). The enrichment analysis of differentially expressed genes (DEGs) and TRP pathway network construction were conducted based on the GEO database. The co-expression of TRPM8 and CGRP in the skin lesions was verified by immunofluorescence double labeling. ResultsBoth the normal temperature and cold exposure model groups showed typical psoriasis-like skin lesions. Compared with the normal temperature and cold exposure control groups, the model groups had excessive epidermal keratinization, thickened spinous layer, and inflammatory infiltration in the dermis, with increased pathological scores (P<0.05), increased infiltration of CD3+ and CD11c+ cells and expression of p-ERK and SP, upregulated mRNA levels of TRPM8, TRPA1, and TRPV2, downregulated mRNA level of TRPV1 (P<0.05), and reduced content of CGRP and increased content of NPY in the serum. Compared with the normal temperature and cold exposure model groups, KXJD reduced the pathological manifestations and pathological scores of psoriasis-like skin lesions (P<0.05), and inhibited the infiltration of CD3+ and CD11c+ cells and the expression of p-ERK and SP. Gene enrichment analysis suggested that the DEGs of psoriasis were significantly enriched in the interleukin (IL)-17 signaling pathway and TRP channel inflammatory regulation. Compared with the normal temperature and cold exposure model groups, KXJD reversed the abnormal mRNA levels of genes related to the TRP channel subfamilies (P<0.05), increased the CGRP level, and decreased the NPY level. Immunofluorescence double labeling further confirmed that compared with the model groups, KXJD down-regulated the co-expression of TRPM8 and CGRP in the skin lesions. ConclusionKXJD may ameliorate psoriasis-like skin lesions by downregulating the overexpressed cold-sensitive receptor TRPM8 in skin lesions and correcting the disorder of neuropeptide (such as SP and CGRP) release mediated by it, thereby inhibiting the IL-23/helper T cell 17 (Th17) core inflammatory pathway, suppressing the infiltration of inflammatory cells and the activation of the ERK signaling pathway, and regulating the Xuanfu (sweat pore)-TRPM8-neuroimmune response axis.
9.Mechanism of Kaixuan Jiedu Core Prescription in Ameliorating Psoriasis-like Inflammation via TrkA Receptor-mediated Regulation of CGRP Expression and Dendritic Cell Activation
Huan LIU ; Mengyao JIANG ; Jiaqi LI ; Meiqi SUN ; Xue XIAO ; Ningxin ZHANG ; Bin YANG ; Ping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):102-110
ObjectiveTo investigate the ameliorative effects and mechanisms of Kaixuan Jiedu core prescription (KXJD) on neuroimmunological inflammation in imiquimod (IMQ)-induced psoriasis-like mice. MethodsA total of 24 C57BL/6J mice were randomly divided into four groups (n=6): Normal, model, KXJD, and tropomyosin receptor kinase A (TrkA) inhibitor GW441756 groups. The mice in the model, KXJD, and GW441756 groups were topically treated with 5% IMQ cream (62.5 mg·d-1) on the back to induce psoriasis-like inflammation. The KXJD group received KXJD by gavage (30.42 g·kg-1), the GW441756 group received intraperitoneal injection of GW441756 (10 mg·kg-1), and the normal and model groups received an equal volume of normal saline by gavage, with continuous intervention for 5 days. The severity of skin lesions was evaluated using the psoriasis area and severity index (PASI). Hematoxylin-eosin (HE) staining was used to measure epidermal thickness and observe pathological changes in the lesioned skin. Immunohistochemistry was employed to detect the expression of proliferating cell nuclear antigen (Ki67) and interleukin-17A (IL-17A) in the lesioned skin. Enzyme-linked immunosorbent assay (ELISA) was used to quantify the levels of interleukin-23 (IL-23) and calcitonin gene-related peptide (CGRP) in the lesioned tissues. Western blot was used to detect the expression of TrkA and phosphorylated TrkA (p-TrkA). Immunofluorescence assay was performed to detect the expression of TrkA receptor, protein gene product 9.5 (PGP9.5), cluster of differentiation 11c (CD11c), and CGRP in the lesions. Flow cytometry was used to detect the activation of splenic dendritic cells (DCs). ResultsCompared with the normal group, the model group exhibited typical psoriasis-like inflammation, characterized by erythema, infiltration and scaling, with histopathological findings of epidermal hyperkeratosis and acanthosis. The model group showed significantly increased expression of Ki67, IL-17A, IL-23 and p-TrkA (P<0.05, P<0.01), increased fluorescence intensity of CD11c, and significantly decreased CGRP expression (P<0.05). The splenic DC activation was significantly enhanced, as indicated by the increased mean fluorescence intensity (MFI) of CD86 (P<0.05). Compared with the model group, both the KXJD and GW441756 groups showed amelioration of the psoriasis-like skin inflammation, with significantly down-regulated expression of IL-17A, IL-23 and p-TrkA (P<0.05, P<0.01), significantly up-regulated expression of CGRP (P<0.01), reduced CD11c+ DC infiltration, and restored splenic DC activation balance (down-regulated CD86 MFI and up-regulated CD80 and CD40 MFI). Furthermore, the inhibitory effect of KXJD on Ki67 was significantly superior to that of the GW441756 group (P<0.01). ConclusionKXJD may alleviate IMQ-induced psoriasis-like inflammation in mice by targeting and inhibiting TrkA receptor phosphorylation, regulating CGRP expression in the lesions, and ameliorating aberrant activation of dendritic cells, while also significantly inhibiting keratinocyte proliferation.
10.Kaixuan Jiedu Core Prescription Ameliorates Imiquimod-induced Psoriasis-like Skin Lesions in Mice by Inhibiting Neuroinflammation Mediated by NGF-TrkA/TRPV1-PAR-2 Signaling Pathway
Mengyao JIANG ; Jiaqi LI ; Huan LIU ; Xue XIAO ; Ningxin ZHANG ; Bin YANG ; Ping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):111-119
ObjectiveTo investigate the effects and molecular mechanisms of Kaixuan Jiedu core prescription (KXJD) on neuroinflammation and immuno-inflammation in the mouse model of imiquimod (IMQ)-induced psoriasis-like skin lesions by regulating the nerve growth factor (NGF)-tropomyosin receptor kinase A (TrkA)/transient receptor potential vanilloid 1 (TRPV1)-protease-activated receptor-2 (PAR-2) signaling pathway. MethodsA psoriasis-like skin lesion model was established in male C57BL/6J mice with IMQ. A total of 24 mice were randomized into four groups (n=6 per group): Blank control, model, methotrexate (MTX, 1 mg·kg-1), and KXJD (30.42 g·kg-1). Immunohistochemistry was employed to detect the expression of cluster of differentiation 3 (CD3), EGF-like module-containing mucin-like hormone receptor-like 1 (F4/80), lymphocyte antigen 6 complex locus G (Ly-6G), substance P (SP), calcitonin gene-related peptide (CGRP), NGF, phosphorylated TrkA (p-TrkA), phosphorylated TRPV1 (p-TRPV1), and PAR-2 in skin lesions. Serum levels of interleukin-17A (IL-17A) and interleukin-23 (IL-23) were measured by enzyme-linked immunosorbent assay (ELISA). Immunofluorescence assay and Western blot were employed to determine the expression of phosphorylated p38 mitogen-activated protein kinase (p-p38 MAPK) and phosphorylated nuclear factor-κB p65 (p-NF-κB p65). Reverse transcription quantitative polymerase chain reaction (Real-time PCR) was used to measure the mRNA levels of interleukin-1β (IL-1β), tumor necrosis factor (TNF), interleukin-6 (IL-6), and C-X-C motif chemokine ligand 1 (CXCL1) in skin lesions. Correlation analysis was performed. ResultsCompared with the blank control group, the model group showed increased positive areas of CD3+, F4/80+, and Ly-6G+ in skin lesions (P<0.05), elevated serum levels of IL-17A and IL-23 (P<0.05), increased positive areas of SP and CGRP in skin lesions (P<0.05), increased positive areas of NGF, p-TrkA, p-TRPV1, and PAR-2 (P<0.05), elevated ratios of p-p38 MAPK/p38 MAPK and p-NF-κB p65/NF-κB p65 (P<0.05), and upregulated mRNA levels of IL-1β, TNF, IL-6, and CXCL1 (P<0.05). Compared with those in the model group, all the above indicators were reversed in the KXJD group (P<0.05). MTX only downregulated the expression of p-TRPV1 and PAR-2 (P<0.05), with no significant effects on the expression of NGF, p-TrkA, or CGRP. ConclusionKXJD inhibits the NGF-TrkA/TRPV1-PAR-2 signaling pathway to reduce neuropeptide release and simultaneously downregulates the p38 MAPK/NF-κB signaling pathway and the expression of downstream pro-inflammatory factors to ameliorate psoriasis-like neuroinflammation and immuno-inflammation. The therapeutic effect of KXJD on psoriasis-like inflammation is closely associated with the inhibition of the NGF-TrkA/TRPV1-PAR-2 signaling pathway. This study provides experimental evidence for the modern interpretation of the Xuanfu theory.


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