1.Sesquiterpene ZH-13 from Aquilariae Lignum Resinatum Improves Neuroinflammation by Regulating JNK Phosphorylation
Ziyu YIN ; Yun GAO ; Junjiao WANG ; Weigang XUE ; Xueping PANG ; Huiting LIU ; Yunfang ZHAO ; Huixia HUO ; Jun LI ; Jiao ZHENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):139-145
ObjectiveTo study the pharmacological substances and mechanisms through which sesquiterpene ZH-13 from Aquilariae Lignum Resinatum improves neuroinflammation. MethodsBV-2 microglial cells were stimulated with lipopolysaccharide (LPS) to induce neuroinflammation. The cells were divided into the normal group, the model group, and the ZH-13 low- and high-dose treatment groups (10, 20 μmol·L-1). The model group was treated with 1 μmol·L-1 LPS. Cell viability was assessed using the cell proliferation and activity assay (CCK-8 kit). Nitric oxide (NO) release in the cell supernatant was measured using a nitric oxide kit (Griess method). The mRNA expression levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), inducible nitric oxide synthase (iNOS), and interleukin-6 (IL-6) were detected by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). The phosphorylation of mitogen-activated protein kinase (MAPK) pathway proteins was assessed by Western blot. ResultsCompared with the model group, ZH-13 dose-dependently reduced NO release from BV-2 cells under LPS stimulation (P<0.05, P<0.01). In the 20 μmol·L-1 ZH-13 treatment group, the mRNA expression levels of IL-1β, TNF-α, iNOS, and IL-6 were significantly reduced compared to the model group (P<0.05, P<0.01). In both the low- and high-dose ZH-13 groups, the expression of the inflammatory factor TNF-α and the phosphorylation of c-Jun N-terminal kinase (JNK) in the upstream MAPK pathway were significantly reduced (P<0.05). After stimulation with the JNK agonist anisomycin (Ani), both low- and high-dose ZH-13 treatment groups showed reduced phosphorylation of JNK proteins compared to the Ani-treated group (P<0.01). ConclusionThe sesquiterpene compound ZH-13 from Aquilariae Lignum Resinatum significantly ameliorates LPS-induced neuroinflammatory responses in BV-2 cells by inhibiting excessive JNK phosphorylation and reducing TNF-α expression. These findings elucidate the pharmacological substances and mechanisms underlying the sedative and calming effects of Aquilariae Lignum Resinatum.
2.Clinical Observation of Guben Quyu Jiedu Prescription in Treating Nocturnal Hypoxemia of COPD Combined with OSAHS
Yi HE ; Ziyu LI ; Wenjiang ZHANG ; Jinzhu GAO ; Changzheng FAN ; Beibei WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):146-153
ObjectiveTo observe the clinical efficacy and safety of Guben Quyu Jiedu prescription in treating nocturnal hypoxemia of chronic obstructive pulmonary disease (COPD) combined with Obstructive sleep apnea hypopnea syndrome ( OSAHS ) (deficiency of lung, spleen and kidney with blood stasis and toxicity). MethodsThe paper used a forward-looking, random double-blind, placebo-controlled design method to select 96 patients with COPD combined with OSAHS, and their traditional Chinese medicines (TCM) syndrome differentiation was deficiency of lung, spleen and kidney with blood stasis and toxicity. These patients were randomly divided into the observation group and the control group, with 48 cases in each group. Based on conventional Western medicine treatment, the observation group was treated with Guben Quyu Jiedu prescription and the control group was treated with traditional Chinese medicine placebo. Both courses of treatment were 90 days. Then the paper compared the changes in minimum pulse oxygen saturation (SpO2) during the night, apnea index (AHI), OSAHS efficacy evaluation, TCM syndrome efficacy evaluation, and TCM symptom score before and after treatment between the two groups. ResultsThere were 5 withdrawals in the observation group and 8 withdrawals in the control group, so 43 cases in the observation group and 40 cases in the control group completed the trial. Compared with the condition before treatment, the minimum SpO2 during the night and AHI in the observation group were significantly improved at night (P<0.01) and were better than those in the control group (P<0.01). OSAHS efficacy in the observation group was better than in the control group (χ2=7.085, P<0.05). In terms of TCM syndrome efficacy, the total effective rate was 81.40% (35/43) in the observation group, significantly higher than that in the control group, which was 15.00% (6/40) (χ2=36.78, P<0.01). The TCM symptom scores of the two groups were improved compared with the condition before treatment, and the effect of the two groups was similar in the four main symptoms of snoring, choking, lethargy, and cough. However, the observation group was better than the control group in 10 details such as dizziness, headache, chest tightness, chest pain, wheezing, dry mouth, and thirst (P<0.05). ConclusionUsing Guben Quyu Jiedu prescription combined with conventional Western medicine can treat COPD combined with OSAHS hypoxemia at night (deficiency of lung, spleen and kidney with blood stasis and toxicity). In this way, the minimum pulse oxygen saturation (SpO2) of patients, the level of disease control, and the quality of life of patients can be improved, and the clinical symptoms can be relieved.
3.A Case Report of Jansen-de Vries Syndrome Caused by PPM1D Gene Mutation and Literature Review
Mei XUE ; Bo PANG ; Xiaoqian ZHANG ; Ziyu GAO ; Bo ZHOU ; Zhixin ZHANG
JOURNAL OF RARE DISEASES 2025;4(3):355-360
Jansen-de Vries syndrome, also known as intellectual developmental disorder with gastrointestinal difficulties and high pain threshold, is a rare autosomal dominant disorder characterized by multisystem involvement. This article reports the case of a young child who presented with global developmental delay, gastrointestinal dysfunction, intellectual disability, and short stature. Distinct facial features included a broad forehead, low nasal bridge, thin upper lip, and widely spaced and misaligned teeth. Additional phenotypic findings involved small hands and feet, as well as digital anomalies. Through whole-exome sequencing (WES) and copy number variation (CNV) analysis, a pathogenic variant was identified in the
4.Effect of Buzhong Yiqitang on Th17/Treg Immune Imbalance and Notch1 Signaling Pathway in AIT Mice
Zhuo ZHAO ; Nan SONG ; Ziyu LIU ; Pin LI ; Yue LUO ; Pengkun ZHANG ; Zhimin WANG ; Yuanping YIN ; Tianshu GAO ; Zhe JIN ; Xiao YANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(5):19-27
ObjectiveTo explore the effect of Buzhong Yiqitang on the immune imbalance of helper T cell 17 (Th17)/regulatory T cell (Treg) and Notch1 signaling pathway in mice with autoimmune thyroiditis (AIT). MethodA total of 60 8-week-old NOD.H-2h4 mice were randomly divided into the normal group, model group, western medicine group (selenium yeast tablet, 32.5 mg·kg-1), and low-dose (4.78 g·kg-1·d-1), middle-dose (9.56 g·kg-1·d-1), and high-dose (19 g·kg-1·d-1) Buzhong Yiqitang groups, with 10 mice in each group. The normal group was fed with distilled water, and the other groups were fed with water containing 0.05% sodium iodide for eight weeks. After the animal model of AIT was formed spontaneously, the mice were killed under anesthesia after intragastric administration for eight weeks. Serum anti-thyroglobulin antibodies (TGAb), thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroid hormone (FT4) were detected by enzyme-linked immunosorbent assay (ELISA), and thyroid tissue changes were observed by hematoxylin-eosin (HE) staining. The mRNA and protein expressions of retinoid-related orphan receptor-γt (RORγt), interleukin (IL)-17, forkhead box P3 (FoxP3), IL-10, Notch1, and hair division-related enhancer 1 (Hes1) in thyroid tissue were detected by Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot, respectively. ResultCompared with the normal group, the thyroid structure of the model group was severely damaged, and lymphocytes were infiltrated obviously. The levels of serum TGAb, FT3, and FT4 contents were significantly increased, and TSH content was significantly decreased (P<0.01). The mRNA and protein expression levels of RORγt, IL-17, Notch1, and Hes1 were significantly increased, while those of FoxP3 and IL10 were significantly decreased in the model group (P<0.01). Compared with the model group, thyroid structural damage and lymphocyte infiltration were improved in the treatment groups, and serum TGAb, FT3, and FT4 contents were significantly decreased. TSH content was increased, and mRNA and protein expression levels of RORγt, IL-17, Notch1, and Hes1 were decreased. mRNA and protein expression levels of FoxP3 and IL-10 were increased to different degrees (P<0.05, P<0.01), and the middle-dose Buzhong Yiqitang group had the most significant intervention effect. ConclusionBuzhong Yiqitang can alleviate the thyroid structural damage in AIT mice, and its mechanism may be related to improving the abnormal differentiation of Th17/Treg immune cells and inhibiting the activation of the Notch1 signaling pathway.
5.Temporal trend of tuberculosis burden among children under 5 years old in China from 1990 to 2021
TAO Luqiu, ZHANG Ziyu, TAN Gao, ZOU Yanzheng, PAN Li, ZHU Hongru, QIAN Yili, LIU Xiaoli, WANG Wei
Chinese Journal of School Health 2024;45(12):1792-1797
Objective:
To analyze the trends in disease burden of tuberculosis among children under 5 years of age in China from 1990 to 2021, so as to provide insights for future tuberculosis control measures among children in China.
Methods:
Based on the Global Burden of Disease (GBD) 2021 datasets, the incidence, prevalence, mortality and disability adjusted life year(DALY) of tuberculosis of children under 5 years of age in China and globally were collected from 1990 to 2021. The incidence, prevalence, mortality and DALY rate of tuberculosis were compared by genders and types. In addition,the annual percent change(APC) and the average annual percent change(AAPC) of children s tuberculosis burden in China and globally from 1990 to 2021 were calculated by using the Joinpoint regression model, and the changing trends were analyzed.
Results:
The numbers of incident, prevalent and dead tuberculosis cases were 9 700, 8 477 800 and 200 among children under 5 years of age in China in 2021, and the DALY due to tuberculosis were 27 100 person years. There were significant reductions in incidence, prevalence, mortality and DALY rate of tuberculosis among children under 5 years of age in China ( AAPC =-5.45%, -1.14%, -12.37%, -11.34 %) and globally( AAPC =-2.38%, -1.41%, -4.66%, -4.56%), and the reductions in the incidence, mortality and DALY rate were more significant in China than globally ( P <0.05).In 1992 and later, the numbers of incident, prevalent and dead tuberculosis cases and the DALY of tuberculosis were higher among male than among female. In addition, the disease burden of drug susceptible tuberculosis appeared a tendency of downward in China from 1990 to 2021, while the incidence and prevalence of extensively drug resistant tuberculosis rose since 2015.
Conclusions
The disease burden of tuberculosis remarkably reduced among children under 5 years of age in China from 1990 to 2021. However, the burden of disease due to multidrug resistant tuberculosis appeared an upward trend recently. Increased attention is required to be paid to the prevention and control of tuberculosis among children and improved diagnosis and treatment of drug resistant tuberculosis are recommended.
6.Analysis of Traditional Chinese Medicine Syndrome Characteristics and Related Factors of Yang Deficiency Syndrome in Postoperative Gastric Cancer Patients: A Multicenter Cross-Sectional Study
Yuansha GE ; Ruike GAO ; Jie LI ; Bowen XU ; Jingyuan WU ; Luchang CAO ; Ziyu KUANG
Journal of Traditional Chinese Medicine 2024;65(24):2565-2571
ObjectiveTo explore the distribution characteristics of traditional Chinese medicine (TCM) syndromes in postoperative gastric cancer patients, and to analyse the factors associated with yang deficiency syndrome and its severity. MethodsTotally, 173 patients who underwent postoperative gastric cancer surgery and were treated in four centers nationwide from February 22, 2022 to March 21, 2023, were enrolled. General information and TCM syndromes were collected, and Diagnostic Scale for Yang Deficiency Syndrome in Gastric Malignancies was filled in. The frequency of TCM syndromes after gastric cancer surgery was analyzed, and univariate analysis and multivariate logistic regression analysis were performed on the related factors of yang deficiency syndrome versus non-yang deficiency syndrome and between different severity of yang deficiency syndrome. ResultsThe most common syndrome after gastric cancer surgery was qi deficiency (95 cases, 54.91%), followed by yang deficiency (87 cases, 50.29%). Patients with yang deficiency syndrome were often suffered from qi deficiency, qi stagnation, and phlegm dampness syndrome. Comparing yang deficiency syndrome with non-yang deficiency syndrome, univariate analysis showed that history of alcohol consumption, pathological stage, degree of differentiation, Lauren grade, signet ring cell carcinoma, vascular cancer thrombus, and nerve invasion were statistically significant (P<0.05); and multivariate logistic regression analysis showed that history of alcohol consumption, signet ring cell carcinoma, pathological stage Ⅲ, Ⅳ, and vascular cancer thrombus may be correlated with yang deficiency syndrome in postoperative gastric cancer patients (P<0.05). The univariate analysis showed that age, pathological stage, precancerous lesions, and body mass index grade were significantly different when compared between mild and severe yang deficiency syndrome (P<0.05); multivariate logistic regression analysis showed that age, low body weight, and pathological stage Ⅲ and Ⅳ might be correlated with severe yang deficiency syndrome after gastric cancer surgery (P<0.05). ConclusionQi deficiency and yang deficiency are common TCM syndromes in postoperative patients with gastric cancer. Alcohol consumption history, pathological staging (stage Ⅲ and Ⅳ), signet ring cell carcinoma, and the presence of vascular cancer thrombus may be correlated with the occurrence of yang deficiency syndrome, and higher age, low body weight, and pathological staging (stage Ⅲ and Ⅳ) may be the correlates of severe yang deficiency syndrome.
7.Mechanism of Buzhong Yiqitang Intervening in Pyroptosis of AIT in NOD.H-2h4 Mice Based on NLRP3/Caspase-1/GSDMD Pathway
Zhimin WANG ; Xiao YANG ; Yiran CHEN ; Ziyu LIU ; Qingyang LIU ; Chenghan GAO ; Chen WANG ; Tianshu GAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(12):8-15
ObjectiveTo explore the mechanism of Buzhong Yiqitang on pyroptosis in autoimmune thyroiditis (AIT) mice based on the NOD-like receptor hot protein domain related protein 3 (NLRP3)/cysteinyl aspartate specific proteinase-1(Caspase-1)/Gasdermin D (GSDMD) pathway. MethodSixty NOD.H-2h4 mice were divided into normal group, model group, low, medium, and high dose groups (4.10, 8.19, 16.38 g·kg-1)of Buzhong Yiqitang, and selenium yeast tablet group (0.26 mg·kg-1), with 10 mice in each group. Except for the normal group, all other groups were given 0.05% NaI by gavage for eight weeks to establish a model and then received the drug treatment for eight weeks. The serum levels of thyroid peroxidase antibody (TPO-Ab) and thyroglobulin antibody (TgAb) were detected using enzyme-linked immunosorbent assay (ELISA) method. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in mouse thyroid tissue. The immunohistochemical method was used to detect the protein expression of NLRP3, Caspase-1, interleukin-1β (IL-1β), and interleukin-18 (IL-18). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of NLRP3, Caspase-1, IL-1β, and IL-18. Western blot was used to detect the levels of pyroptosis-related proteins in thyroid tissue. ResultCompared with the normal group, the serum levels of TPO-Ab and TgAb in the model group were significantly increased (P<0.01). Thyroid follicles either increased in a cubic shape or were damaged and atrophied, with a large number of lymphocytes infiltrating around the follicles. Compared with the model group, the levels of TPO-Ab and TgAb in other groups were significantly reduced (P<0.01), and the morphology and structure of follicles were improved. The degree of lymphocyte infiltration was reduced. Among them, the medium dose group of Buzhong Yiqitang had the most significant reduction and improvement effect. Compared with the normal group, the positive products and mRNA expression of NLRP3, Caspase-1, IL-1β, and IL-18 proteins in the thyroid tissue of the model group significantly increased (P<0.01), and the protein expression levels of NLRP3, cleaved Caspase-1, IL-1β, IL-18, and GSDMD-N were significantly increased (P<0.05, P<0.01). Compared with the model group, the positive products and mRNA expression of NLRP3, Caspase-1, IL-1β, and IL-18 proteins in other groups were significantly reduced (P<0.05, P<0.01), with the most significant reduction effect in the medium dose group of Buzhong Yiqitang. The protein expression levels of NLRP3, cleaved Caspase-1, IL-1β, IL-18, and GSDMD-N were significantly reduced (P<0.05, P<0.01). ConclusionBuzhong Yiqitang can improve AIT, and its mechanism may be achieved by regulating the NLRP3/Caspase-1/GSDMD signaling pathway to inhibit pyroptosis.
8.Effect of "Internet plus" exercise prescription intervention on upper limb function and quality of life of breast cancer patients at home after surgery
Yang JIANG ; Weiting ZHAO ; Qing CHU ; Ziyu LU ; Yujie GAO ; Wenxia YAN ; Yaoyao JIANG
Chinese Journal of Practical Nursing 2024;40(11):809-816
Objective:To explore the effect of "Internet plus" exercise prescription intervention on upper limb dysfunction and quality of life of breast cancer patients at home after surgery, so as to provide reference for health management of breast cancer patients after surgery.Methods:Adopting a prospective randomized controlled trial research method. From November 2021 to January 2023, 124 breast cancer patients in the breast and thyroid surgery department of Xiang′an Hospital Affiliated to Xiamen University were selected for the study. According to the random number table method, they were randomly divided into an intervention group (62 cases) and a control group (62 cases). The control group patients were given routine training, and the intervention group patients received routine training in the first four weeks after operation, and "Internet plus" exercise prescription intervention in the fifth week after operation. The upper limb dysfunction, quality of life before and after the intervention and motor compliance after the intervention between the two groups were compared.Results:A total of 117 patients were ultimately included, and they were all female, with 58 patients in the intervention group aged (51.01 ± 9.77) years old and 59 patients in the control group aged (51.47 ± 9.85) years old. There was no statistically significant difference in upper limb dysfunction and quality of life between the two groups of patients before intervention ( P>0.05). After the intervention, the degree of upper limb dysfunction in the intervention group was (63.55 ± 7.02) points, which were lower than that in the control group (67.13 ± 7.25) points, and the difference was statistically significant ( t = 2.71, P<0.01). After the intervention, the total score of quality of life and the scores of physiological status, social/family status, emotional status, functional status and additional attention of breast cancer patients in the intervention group were (115.27 ± 17.35), (22.65 ± 4.53), (22.79 ± 4.36), (20.96 ± 3.95), (19.56 ± 4.22), (29.31 ± 5.24) points, which were higher than those in the control group (104.28 ± 17.04), (20.57 ± 4.48), (20.85 ± 4.23), (18.75 ± 4.04), (17.18 ± 4.06), (26.93 ± 5.21) points, the differences were statistically significant ( t values were 2.44-3.46, all P<0.05). In terms of exercise compliance of breast cancer patients in the intervention group, the aerobic exercise completion rate was 91.38% (53/58), muscle strength training completion rate was 77.59% (45/58), stretching exercise completion rate was 86.21% (50/58), exercise frequency was (3.96 ± 1.13) times/week, exercise duration was (29.51 ± 7.64) min/time, which was superior to 77.97% (46/59), 57.63% (34/59), 69.49% (41/59), (3.38 ± 0.94) times/week, (23.96 ± 7.33) min/time in the control group, the differences were statistically significant ( χ2 = 4.04, 5.31, 4.73, t = 3.02, 4.01, all P<0.05). Conclusions:"Internet plus" exercise prescription intervention has the characteristics of convenience, intuition and strong operability, which is conducive to improving the upper limb dysfunction, quality of life and exercise compliance of breast cancer patients at home after surgery. It is recommended to be popularized and applied clinically.
9.Mechanism of Buzhong Yiqitang in Ameliorating Thyroiditis Damage in AIT Mice by Modulating TLR4/NF-κB/AIM2 Signaling Pathway
Zhuo ZHAO ; Zhe JIN ; Zhengzheng LI ; Xuanlin GUO ; Jiayun LI ; Tongran GAO ; Pin LI ; Zhimin WANG ; Yuanping YIN ; Ziyu LIU ; Xiao YANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):1-9
ObjectiveTo explore the mechanism of Buzhong Yiqitang in ameliorating inflammatory injury in autoimmune thyroiditis (AIT) mice based on the Toll-like receptor 4(TLR4)/nuclear transcription factor-kappa B(NF-κB)/absent in melanoma 2(AIM2)inflammasome signaling pathway. MethodThe 120 genetically susceptible 8-week-old NOD.H-2h4 mice were selected and randomly divided into control group, model group, low, medium and high dose groups of Buzhong Yiqitang (4.78, 9.56, 19.12 g·kg-1), and western medicine group (selenium yeast tablets, 3.033×10-5 g·kg-1). The AIT model mice in each group drank ad libitum 0.05% sodium iodide aqueous solution for 8 weeks to establish the AIT model, and the control group drank ad libitum distilled water. Eight weeks later, the mice in each dosing group were divided into groups and gavage. The swelling of thyroid tissue was observed with the naked eye, and the weight of spleen was weighed. The content of serum inflammatory factors interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) was measured by enzyme-linked immunosorbent assay (ELISA), and Real-time PCR was used to detect the expression of HMGB1, TLR4, AIM2, NF-κB p65,apoptosis-associated speck-like protein(ASC),cysteinyl aspartate-specific protease-1(Caspase-1), IL-1β mRNA. Western blot was used to detect the expression of high motility group protein 1 (HMGB1), TLR4, AIM2, NF-κB p65, phosphorylation(p)-NF-κB p65, ASC, Caspase-1, and IL-1β proteins in thyroid tissue, and immunofluorescence staining was used to observe the protein expression of HMGB1, AIM2, and NF-κB p65 in thyroid tissue of mice. ResultCompared with the control group, the thyroid tissue of mice in the model group was significantly swollen, the spleen quality was significantly increased, and the expression of HMGB1, TLR4, NF-κB p65, AIM2, ASC, Caspase-1, IL-1β in thyroid tissue was significantly increased (P<0.01). Compared with the model group, the swelling of thyroid tissue in mice in each dose group of Buzhong Yiqitang was improved, the quality of spleen was significantly reduced, and the expression of HMGB1, TLR4, AIM2, NF-κB p65, p-NF-κB p65, ASC, Caspase-1, IL-1β in thyroid tissue was significantly reduced (P<0.05, P<0.01). ConclusionBuzhong Yiqitang can effectively improve the inflammatory injury of AIT, and regulating the abnormal activation of the TLR4/NF-κB/AIM2 inflammasome signal pathway may be one of its intervention mechanisms.
10.Improvement of Thyroid Injury in AIT Mice by Inhibiting Ferroptosis Through Regulation of Nrf2/PPARγ/GPX4 Pathway by Buzhong Yiqitang
Ziyu LIU ; Zhuo ZHAO ; Yiran CHEN ; Huimin CAO ; Si CHEN ; Zhimin WANG ; Tianshu GAO ; Xiao YANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):10-18
ObjectiveTo investigate the mechanism of Buzhong Yiqitang in ameliorating ferroptosis in autoimmune thyroiditis (AIT) mice based on the nuclear factor erythroid 2-related factor 2 (Nrf2)/peroxisome proliferator-activated receptor γ (PPARγ)/glutathione peroxidase 4 (GPX4) pathway. Method120 SPF-grade 7-8-week-old NOD.H-2h4 mice were randomly divided into control group, model group, low-, medium-, and high-dose Buzhong Yiqitang groups, and western medicine group, with 20 mice in each group. Except for the control group, all mice were fed with classic high-iodine water (0.05% NaI) to induce AIT models after 8 weeks. The low-, medium-, and high-dose Buzhong Yiqitang groups were administered 4.78, 9.56, 19.12 g·kg-1 of Buzhong Yiqitang, respectively, via gavage. The western medicine group was given 3.033×10-5 g·kg-1 selenium yeast tablet suspension via gavage, while the control and model groups were given an equal volume of distilled water via gavage. After 8 weeks of continuous treatment, samples were collected. The pathological morphology of mouse thyroid tissue was observed through hematoxylin-eosin (HE) staining,the content of serumantithyroid peroxidase autoantibody(TPOAb)and anti-thyroglobulin antibodies(TGAb)was measured by enzyme-linked immunosorbent assay (ELISA),the kit was used to detect the levels of superoxide dismutase (SOD), and malondialdehyde (MDA) in mouse serum. Immunofluorescence was used to detect the localized expression of GPX4 in thyroid tissue. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the expression of Nrf2, PPARγ, solute carrier family 7 member 11 (SLC7A11), solute carrier family 3 member 2 (SLC3A2), lysolipid lecithin acyltransferase 3 (LPCAT3), and GPX4 mRNA in thyroid tissue. Western blot was used to detect the expression of Nrf2, PPARγ, SLC7A11, SLC3A2, LPCAT3, and GPX4 proteins in thyroid tissue. ResultCompared with control group, model group under light microscopy showed significant lymphocyte infiltration in the thyroid tissue, significantly increased levels of TGAb and TPOAb in serum (P<0.01), significantly increased MDA levels and decreased SOD levels in serum (P<0.01), significantly decreased expression of Nrf2, PPARγ, SLC7A11, SLC3A2, and GPX4 (P<0.01) in thyroid tissue, while the expression of LPCAT3 was significantly increased (P<0.01). Compared with model group, the Buzhong Yiqitang groups and the western medication group under light microscopy showed lymphocyte infiltration in the thyroid tissue of was decreased, significantly decreased levels of TPOAb and TGAb in serum (P<0.05,P<0.01), decreased MDA levels and increased SOD levels in serum(P<0.05,P<0.01),significantly increased expression of Nrf2, PPARγ, SLC7A11, SLC3A2, and GPX4, while the expression of LPCAT3 was significantly decreased (P<0.05,P<0.01) in the thyroid tissue. Compared with western medication group, Buzhong Yiqitang groups showed significant overall trends in the expression of Nrf2, PPARγ, SLC7A11, SLC3A2, GPX4, and LPCAT3 (P<0.05,P<0.01). ConclusionBuzhong Yiqitang can effectively improve the inflammatory injury of AIT, and its mechanism of action may be related to the regulation of Nrf2/PPARγ/GPX4 to inhibit ferroptosis.


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