1.Joint Relation Extraction of Famous Medical Cases with CasRel Model Combining Entity Mapping and Data Augmentation
Yuxin LI ; Xinghua XIANG ; Hang YANG ; Dasheng LIU ; Jiaheng WANG ; Zhiwei ZHAO ; Jiaxu HAN ; Mengjie WU ; Qianzi CHE ; Wei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):218-225
ObjectiveTo address the challenges of unstructured classical Chinese expressions, nested entity relationships, and limited annotated data in famous traditional Chinese medicine(TCM) case records, this study proposes a joint relation extraction framework that integrates data augmentation and entity mapping, aiming to support the construction of TCM diagnostic knowledge graphs and clinical pattern mining. MethodsWe developed an annotation structure for entities and their relationships in TCM case texts and applied a data augmentation strategy by incorporating multiple ancient texts to expand the relation extraction dataset. A cascade binary tagging framework for relation triple extraction(CasRel) model for TCM semantics was designed, integrating a pre-trained bidirectional encoder representations from transformers(BERT) layer for classical TCM texts to enhance semantic representation, and using a head entity-relation-tail entity mapping mechanism to address entity nesting and relation overlapping issues. ResultsExperimental results showed that the CasRel model, combining data augmentation and entity mapping, outperformed the pipeline-based Bert-Radical-Lexicon(BRL)-bidirectional long short-term memory(BiLSTM)-Attention model. The overall precision, recall, and F1-score across 12 relation types reached 65.73%, 64.03%, and 64.87%, which represent improvements of 14.26%, 7.98%, and 11.21% compared to the BRL-BiLSTM-Attention model, respectively. Notably, the F1-score for tongue syndrome relations increased by 22.68%(69.32%), and the prescription-syndrome relations performed the best with the F1-score of 70.10%. ConclusionThe proposed framework significantly improves the semantic representation and complex dependencies in TCM texts, offering a reusable technical framework for structured mining of TCM case records. The constructed knowledge graph can support clinical syndrome differentiation, prescription optimization, and drug compatibility, providing a methodological reference for TCM artificial intelligence research.
2.Syndrome Differentiation and Treatment Mechanisms of Inflammatory Injury in Diabetic Cardiomypathy from Theory of "Gaozhuo"
Xiaoyue WANG ; Yunfeng YU ; Xiangning HUANG ; Yixin XIANG ; Sihao ZHANG ; Qin XIANG ; Rong YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):235-244
Diabetic cardiomyopathy (DCM) is one of the most common complications of diabetes mellitus and is a major threat to global health. As a key mechanism in the occurrence and progression of DCM, the inflammatory response persists throughout the entire course of the DCM. The Gaozhuo theory suggests that the basic pathogenesis of inflammatory injury in DCM is the Qi deficiency of spleen and kidney and Gaozhuo invasion, and divides the pathological process into three phases: Gaozhuo invasion, turbid heat damage to the channels, and turbid blood stasis and heat junction. Among them, the Qi deficiency of spleen and kidney and the endogenous formation of Gaozhuo represent the process of inflammatory factor formation induced by glucose metabolism disorders. Turbid heat damage to the channels refers to the process of myocardial inflammatory injury mediated by inflammatory factors, and turbid blood stasis and heat junction are the process of myocardial injury developing toward myocardial fibrosis and ventricular remodeling. As the disease continues to progress, it eventually develops into a depletion of the heart Yang, leading to the ultimate regression of heart failure. According to the theory of Gaozhuo, traditional Chinese medicine (TCM) should regulate inflammatory injury in DCM by strengthening the spleen and tonifying the kidney to address the root cause, and resolving dampness and lowering turbidity to treat the symptoms. If the turbidity has been stored for a long time and turns into heat, strengthening the spleen and tonifying the kidney, and clearing heat and resolving turbidity should be the therapy. If the turbidity, stasis, and heat are knotted in the heart and collaterals, strengthening the spleen and tonifying the kidney, and resolving stasis and lowering turbidity should be the therapy. TCM compounds and monomers can regulate the inflammatory response in DCM. TCM compounds can be divided into the categories for benefiting Qi to resolve turbidity, benefiting Qi and clearing heat to resolve turbidity, and benefiting Qi and activating blood to reduce turbidity. The compounds can inhibit upstream signals of inflammation and expression of inflammatory factors, improve the inflammatory damage to myocardium and blood vessels, myocardial fibrosis, and cardiac systole and diastole, and thus slow down the onset and progression of DCM.
3.Syndrome Differentiation and Treatment Mechanisms of Hepatic Stellate Cell Activation in Type 2 Diabetes Mellitus Combined with Non-alcoholic Fatty Liver Disease Based on Theory of "Gaozhuo"
Yixin XIANG ; Yunfeng YU ; Xiaoyue WANG ; Xiangning HUANG ; Qin XIANG ; Rong YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):253-260
Non-alcoholic fatty liver disease (NAFLD) is one of the most common complications of type 2 diabetes mellitus (T2DM), and hepatic stellate cell (HSC) activation is the key link in the progression of NAFLD to liver fibrosis. According to the theory of "Gaozhuo", spleen deficiency and Qi stagnation, along with Gaozhuo invasion, are the causes of NAFLD progression to liver fibrosis, which reveals the pathogenesis essence of HSC activation in traditional Chinese medicine (TCM). Among them, spleen deficiency and Qi stagnation are the root causes of the endogenous formation of Gaozhuo. Spleen deficiency indicates the insulin sensitivity decrease and glucose metabolism disorders, and Qi stagnation means the dysregulation of hepatic glucose and lipid metabolism, which creates the preconditions for HSC activation. Gaozhuo invasion is the direct cause of HSC activation, including three stages: Internal retention of Gaozhuo, turbidity and stasis stagnation, and toxic stasis and consolidation. Internal retention of Gaozhuo refers to the abnormal metabolism and deposition of hepatic lipids, as well as the microcirculatory disorders. Turbidity and stasis stagnation is the process by which lipotoxicity stimulates the transformation of HSC into myofibroblast (MFB), and toxic stasis and consolidation represent the secretion of a large amount of extracellular matrix (ECM) by MFB to promote the fibrosis. According to the theory of Gaozhuo and the activation process of HSC, syndromes for T2DM combined with NAFLD can be classified into spleen deficiency and Qi stagnation with internal retention of Gaozhuo, spleen Qi deficiency with turbidity and stasis stagnation, and spleen Qi deficiency with toxic stasis and consolidation. Clinically, the treatment principle is to strengthen the spleen and promote Qi, resolve turbidity, and eliminate blood stasis. Both TCM compounds and monomers can effectively inhibit the HSC activation. TCM compounds can be classified into categories for regulating spleen and harmonizing liver, resolving turbidity and removing stasis, and detoxifying and removing stasis. They mainly work by improving lipid metabolism, reducing lipid accumulation in the liver, alleviating inflammatory and oxidative stress responses, inhibiting the activation and proliferation of HSC, and reducing ECM deposition, thereby delaying the progression of liver fibrosis.
4.Clinical Application and Pharmacological Effects of Guizhi Fulingwan in Treatment of Uterine Fibroids: A Review
Xiang ZHANG ; Xiaoli WEN ; Biting CHENG ; Hongning LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):299-307
Uterine fibroids are a common benign tumor of the female reproductive system, characterized by increased menstrual flow, lower abdominal pain, and prolonged menstrual periods. Modern medicine believes that the onset of this disease is related to genetic factors, environmental factors, hormone levels, et al, while the specific mechanism remains unclear, and the prevention and treatment of uterine fibroids has become a hot topic of concern for many experts and scholars in the medical field. At present, the treatment of uterine fibroids in clinical practice is mainly based on hormone drugs and uterine artery embolization, and severe cases require hysterectomy. However, the use of hormone drugs for treatment has serious side effects and is prone to recurrence after surgery. Since hysterectomy can cause severe harm to women, it is necessary to explore safer and more effective treatment methods. Traditional Chinese medicine (TCM) has rich clinical experience in the treatment of uterine fibroids, advocating for syndrome differentiation and treatment. The TCM methods that regulate Qi and blood and balance Yin and Yang have been commonly adopted, with significant efficacy and minimal side effects, being more conducive to the recovery. Guizhi Fulingwan are first recorded in the Synopsis of the Golden Chamber written by the famous medical expert ZHANG Zhongjing during the Eastern Han dynasty. This prescription has the effects of activating blood, resolving stasis, and eliminating mass, and it is thus mainly used for treating abdominal mass in women. In recent years, Guizhi Fulingwan has also been applied in the clinical treatment of tumors and has demonstrated definite efficacy in the treatment of uterine fibroids. Studies have shown that the therapeutic mechanisms of Guizhi Fulingwan for uterine fibroids involve regulating cell proliferation and apoptosis, improving immune function, reducing inflammation, improving hemorheological indicators, inhibiting tumor angiogenesis, and regulating sex hormone levels. This article mainly reviews the treatment of uterine fibroids with Guizhi Fulingwan from three aspects: theoretical basis, clinical application, and pharmacological mechanism. It is expected to provide scientific research ideas and guidance for exploring the clinical treatment of uterine fibroids.
5.Visual function training combined with surgical intervention for the treatment of intermittent exotropia
International Eye Science 2026;26(1):29-34
AIM: To observe clinical outcomes of visual function training combined with surgical intervention in children with intermittent exotropia.METHODS: Retrospective study. A total of 100 pediatric patients with intermittent exotropia admitted to the Children's Hospital of Soochow University from January 2022 to December 2024 were selected and divided into two groups based on treatment modality. Both groups underwent intermittent exotropia correction surgery. The control group did not follow a visual rehabilitation program postoperatively, while the visual rehabilitation group did. The differences were compared between the two groups in preoperative and postoperative 12 wk results of perceptual eye position examinations, visual perception stereopsis function tests, multifocal visual evoked potential outcomes, Chinese version of the Child-International Quality of Life for Children with Strabismus(Child-IXTQ)scores, and strabismus angle.RESULTS: The baseline data of the two groups were comparable. Both groups showed reduced horizontal and vertical perceptual eye position deviation at 12 wk postoperatively compared to preoperative levels, with the visual group exhibiting lower values than the control group(all P<0.01). At 12 wk postoperatively, the number of children in the visual group who recovered fine and dynamic stereopsis increased compared to preoperative levels, and this number was higher than that in the control group(all P<0.05). There was no significant difference between the two groups in the number of children who recovered coarse stereopsis preoperatively and 12 wk postoperatively(all P>0.05). Both groups showed reduced latency for the first and second rings at 12 wk postoperatively compared to pre-surgery, with the visual group exhibiting lower latency than the control group(all P<0.01). There was no significant difference in latency for the third and fourth rings between pre-surgery and 12 wk postoperatively in either group(all P>0.05). Both groups showed increased Child-IXTQ scores at 12 wk postoperatively compared to preoperatively, with the visual group scoring higher than the control group(all P<0.05). Both groups exhibited reduced strabismus angles at 33 cm and 6 m at 12 wk postoperatively compared to preoperatively(all P<0.01), but the visual group showed no difference compared to the baseline group(all P>0.05).CONCLUSION: Combining visual function training with surgical intervention for intermittent exotropia can improve multifocal visual evoked potentials, promote visual function recovery, and enhance quality of life.
6.LU Fang's Clinical Experience in Differentiation and Treatment of Systemic Lupus Erythematosus from the Perspective of Heat-Toxin and Blood-Stasis in the Collaterals
Yingchao NIU ; Yongzhu PIAO ; Xiang GENG ; Zhihui GAO ; Yan ZHANG ; Huibin WU ; Zhilong WANG ; Shuangshuang GE ;
Journal of Traditional Chinese Medicine 2026;67(1):16-20
This paper summarizes Professor LU Fang's clinical experience in treating systemic lupus erythematosus (SLE) based on the differentiation and treatment of heat-toxin and blood-stasis in the collaterals. SLE is generally characterized by deficiency in origin with excess in manifestation. The core pathogenesis is heat-toxin obstructing the collaterals. During the acute active stage, the predominant pattern is blazing heat-toxin causing blood stasis, while in the chronic remitting stage, the main pattern is toxic stasis blocking the collaterals with qi and yin deficiency. Clinical treatment follows the basic principle that treat with salty-cold herbs, when heat invades internally and that assist with acrid-dispersing herbs when stasis obstructs the collaterals. The self-formulated Yimian Decoction (抑免汤) serves as the base formula and is applied in stages. During the acute active stage, it is often combined with herbs for clearing heat and detoxifying, cooling blood and resolving stasis, and unblocking the collaterals. In the chronic remitting stage, it is often combined with herbs for activating blood circulation and unblocking the collaterals, as well as tonifying qi and nourishing yin.
7.Mechanism study of SIRT3 alleviating oxidative-stress injury in renal tubular cells by promoting mitochondrial biogenesis via regulating mitochondrial redox balance
Yaojun LIU ; Jun ZHOU ; Jing LIU ; Yunfei SHAN ; Huhai ZHANG ; Pan XIE ; Liying ZOU ; Lingyu RAN ; Huanping LONG ; Lunli XIANG ; Hong HUANG ; Hongwen ZHAO
Organ Transplantation 2026;17(1):86-94
Objective To elucidate the molecular mechanism of sirtuin-3 (SIRT3) in regulating mitochondrial biogenesis in human renal tubular epithelial cells. Methods Cells were stimulated with different concentrations of H2O2 and divided into four groups: control (NC), 50 μmol/L H2O2, 110 μmol/L H2O2 and 150 μmol/L H2O2. SIRT3 protein expression was then measured. SIRT3 was knocked down with siRNA, and cells were further assigned to five groups: control (NC), negative-control siRNA (NCsi), SIRT3-siRNA (siSIRT3), NCsi+H2O2, and siSIRT3+H2O2. After 24 h, cellular adenosine triphosphate (ATP) and mitochondrial superoxide anion (O2•−) levels were determined, together with mitochondrial expression of SIRT3, peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), nuclear respiratory factor 1 (NRF1), mitochondrial transcription factor A (TFAM), superoxide dismutase 2 (SOD2), acetylated-SOD2 and adenosine monophosphate activated protein kinase α1 (AMPKα1). Results The 110 and 150 μmol/L H2O2 decreased SIRT3 protein (both P<0.05). ATP and mitochondrial O2•− did not differ between NC and NCsi groups (both P>0.05). Compared to the NCsi group, the siSIRT3 group exhibited elevated O2•− level, decreased SIRT3 protein and increased expression levels of SOD2 and acetylated SOD2 protein (all P<0.05). Compared to the NCsi group, the NCsi+H2O2 group exhibited decreased cellular ATP levels, elevated mitochondrial O2•− levels, and reduced protein expression levels of SIRT3, SOD2, TFAM, AMPKα1, PGC-1α and NRF1 (all P<0.05). Compared with the siSIRT3 group, the siSIRT3+H2O2 group showed a decrease in cellular ATP levels, an increase in mitochondrial O2•− levels, a decrease in SIRT3, SOD2, TFAM, AMPKα1, PGC-1α and NRF1 protein expression levels and a decrease in acetylated SOD2 protein expression levels (all P<0.05). Compared with the NCsi+H2O2 group, the siSIRT3+H2O2 group showed a decrease in cellular ATP levels, an increase in mitochondrial O2•− levels, a decrease in SIRT3, AMPKα1, PGC-1α and NRF1, TFAM protein expression levels, and an increase in SOD2 and acetylated SOD2 protein expression levels (all P<0.05). Conclusions SIRT3 promotes mitochondrial biogenesis in tubular epithelial cells via the AMPK/PGC-1α/NRF1/TFAM axis, representing a key mechanism through which SIRT3 ameliorates oxidative stress-induced mitochondrial dysfunction.
8.Study on the effects and mechanisms of Lycium ruthenicum Murr. in improving sleep
Ming QIAO ; Yao ZHAO ; Yi ZHU ; Yexia CAO ; Limei WEN ; Yuehong GONG ; Xiang LI ; Juanchen WANG ; Tao WANG ; Jianhua YANG ; Junping HU
China Pharmacy 2026;37(1):24-29
OBJECTIVE To investigate the effects and mechanisms of Lycium ruthenicum Murr. in improving sleep. METHODS Network pharmacology was employed to identify the active components of L. ruthenicum and their associated disease targets, followed by enrichment analysis. A caffeine‑induced zebrafish model of sleep deprivation was established , and the zebrafish were treated with L. ruthenicum Murr. extract (LRME) at concentrations of 0.1, 0.2 and 0.4 mg/mL, respectively; 24 h later, behavioral changes of zebrafish and pathological alterations in brain neurons were subsequently observed. The levels of inflammatory factors [interleukin-6 (IL-6), IL-1β, IL-10, tumor necrosis factor-α (TNF-α)], oxidative stress markers [superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), catalase (CAT)], and neurotransmitters [5- hydroxytryptamine (5-HT), γ-aminobutyric acid (GABA), glutamic acid (Glu), dopamine (DA), and norepinephrine (NE)] were measured. The protein expression levels of protein kinase B1 (AKT1), phosphorylated AKT1 (p-AKT1), epidermal growth factor receptor (EGFR), B-cell lymphoma 2 (Bcl-2), sarcoma proto-oncogene,non-receptor tyrosine kinase (SRC), and heat shock protein 90α family class A member 1 (HSP90AA1) in the zebrafish were also determined. RESULTS A total of 12 active components and 176 intersecting disease targets were identified through network pharmacology analysis. Among these, apigenin, naringenin and others were recognized as core active compounds, while AKT1, EGFR and others served as key targets; EGFR tyrosine kinase inhibitor resistance signaling pathway was identified as the critical pathway. The sleep improvement rates in zebrafish of LRME low-, medium-, and high-dose groups were 54.60%, 69.03% and 77.97%, 开发。E-mail:hjp_yft@163.com respectively, while the inhibition ratios of locomotor distance were 0.57, 0.83 and 0.95, respectively. Compared with the model group, the number of resting counts, resting time and resting distance were significantly increased/extended in LRME medium- and high-dose groups (P<0.05). Neuronal damage in the brain was alleviated. Additionally, the levels of IL-6, IL-1β, TNF-α, MDA, Glu, DA and NE, as well as the protein expression levels of AKT1, p-AKT1, EGFR, SRC and HSP90AA1, were markedly reduced (P<0.05), while the levels of IL-10, SOD, GSH-Px, CAT, 5-HT and GABA, as well as Bcl-2 protein expression, were significantly elevated (P<0.05). CONCLUSIONS L. ruthenicum Murr. demonstrates sleep-improving effects, and its specific mechanism may be related to the regulation of inflammatory responses, oxidative stress, neurotransmitter balance, and the EGFR tyrosine kinase inhibitor resistance signaling pathway.
9.Study on the apoptosis-inducing effect of esculetin on acute myeloid leukemia HL-60 cells via regulating the AKT/SKP2/MTH1 pathway
Weihua SONG ; Fuying CHU ; Wei XIE ; Jinliang CHEN ; Ping ZHAO ; Hong QIU ; Jian TAO ; Xiang CHEN
China Pharmacy 2026;37(1):36-41
OBJECTIVE To investigate the apoptosis-inducing effect of esculetin (Esc) on acute myeloid leukemia (AML) HL-60 cells by regulating the protein kinase B (AKT)/S-phase kinase-associated protein 2 (SKP2)/MutT homolog 1 (MTH1) pathway. METHODS AML HL-60 cells were randomly divided into control group (routine culture), Esc low-concentration group (L-Esc group, 25 μmol/L Esc), Esc medium-concentration group (M-Esc group, 50 μmol/L Esc), Esc high-concentration group (H-Esc group, 100 μmol/L Esc), and high-concentration of Esc+ SC79 (AKT agonist) group (100 μmol/L Esc+5 μmol/L SC79). Cell proliferation in each group was detected by MTT assay and colony formation assay. The level of reactive oxygen species (ROS) in cells was measured by using the CM-H2DCFDA fluorescent probe. Cell apoptosis was analyzed by flow cytometry. Western blot assay was performed to detect the expression levels of apoptosis-related proteins [B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), cleaved caspase-3], AKT/SKP2/MTH1 pathway-related proteins (p-AKT, AKT, SKP2, MTH1), along with the upstream and downstream proteins of AKT phosphatidylinositol 3-kinase (PI3K), cyclin-dependent kinase inhibitor 1 (P21) and cyclin-dependent kinase inhibitor 1B (P27). RESULTS Compared with control group, the cell viability, colony number, and the phosphorylation levels of AKT and PI3K proteins as well as protein expressions of SKP2, MTH1 and Bcl-2 were significantly decreased (P<0.05), while ROS level, apoptosis rate, and the expression levels of Bax, cleaved caspase-3, P21 and P27 proteins were significantly increased (P<0.05). Moreover, the effects of Esc exhibited concentration-dependence (P<0.05). Compared with H-Esc group, above indexes of high-concentration of Esc+ SC79 group were reversed significantly (P<0.05). CONCLUSIONS Esc may promote massive ROS production and induce activation of apoptosis in HL-60 cells by inhibiting the AKT/SKP2/MTH1 pathway, thus inhibiting the proliferation of HL-60 cells.
10.Exploration on Mechanism of Topical Treatment of Allergic Contact Dermatitis in Mice with Portulacae Herba Based on Nrf2/HO-1/NF-κB Signaling Pathway
Xiaoxue WANG ; Guanwei FAN ; Xiang PU ; Zhongzhao ZHANG ; Xia CHEN ; Ying TANG ; Nana WU ; Jiangli LUO ; Xiangyan KONG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):115-123
ObjectiveTo investigate the mechanism of topical treatment of allergic contact dermatitis (ACD) mice with Portulacae Herba based on the nuclear factor E2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1)/nuclear factor-κB (NF-κB) signaling pathway. MethodsA total of 70 6-week-old specific pathogen free (SPF) female Kunming mice were adaptively fed for 1 week and randomly divided into blank group, model group, compound dexamethasone acetate cream group (2.075×10-2 g·g-1), blank matrix cream group, low-dose Portulacae Herba cream group (0.1 g·g-1), high-dose Portulacae Herba cream group (0.2 g·g-1), and Portulacae Herba + inhibitor group (0.2 g·g-1 + 30 mg·kg-1 ML385), with 10 mice in each group. One day before the experiment, the mice were shaved on the neck and back. Except for the blank group, the mice in the other groups were treated with 2,4-dinitrochlorobenzene (DNCB) to establish an ACD model. After respective administration, the skin lesion of the mice was scored, and the histopathological changes of the skin were stained with hematoxylin-eosin (HE). Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of interleukin-6 (IL-6), interleukin-1β (IL-1β), reactive oxygen species (ROS), superoxide dismutase (SOD) activity, and malondialdehyde (MDA) in serum of mice. The expression of Nrf2/HO-1/NF-κB signaling pathway-related proteins in mouse skin tissue was detected by immunohistochemistry (IHC), Western blot, and real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). ResultsCompared with the blank group, the mice in the model group had an increased skin lesion score (P<0.01), severe pathological damage to skin tissue, increased content of IL-1β, IL-6, ROS, and MDA in their serum (P<0.01), and decreased content of SOD (P<0.01). In addition, the mRNA and protein expression levels of Nrf2, HO-1, and nuclear factor-κB inhibitor α (IκBα) in skin tissue were up-regulated (P<0.01), while the protein expression levels of phosphorylated (p)-IκBα and p-NF-κB p65 and the mRNA expression of NF-κB p65 were down-regulated (P<0.01). Compared with the model group and the blank matrix cream group, the mice treated with Portulacae Herba had a decreased skin lesion score (P<0.01), reduced pathological damage to skin tissue, decreased content of IL-1β, IL-6, ROS, and MDA in their serum (P<0.01), and increased content of SOD (P<0.01). Additionally, the mRNA and protein expression levels of Nrf2, HO-1, and IκBα in skin tissue were down-regulated (P<0.05,P<0.01), and the protein expression levels of p-IκBα and p-NF-κB p65 and the mRNA expression of NF-κB p65 were up-regulated (P<0.05,P<0.01). Compared with the Portulacae Herba + inhibitor group, the high-dose Portulacae Herba cream group had a decreased skin lesion score (P<0.01), alleviated pathological damage to skin tissue, decreased content of IL-1β, IL-6, ROS, and MDA in the serum of mice (P<0.05,P<0.01), and increased content of SOD (P<0.01). The protein expression levels of Nrf2, HO-1, and IκBα and the mRNA expression of Nrf2 and HO-1 in skin tissue were up-regulated (P<0.05,P<0.01), and the protein expression levels of p-IκBα and p-NF-κB p65 and the mRNA expression of NF-κB p65 were down-regulated (P<0.05). ConclusionPortulacae Herba can improve DNCB-induced ACD skin damage in mice by regulating the Nrf2/HO-1/NF-κB signaling pathway.

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