1.Trends and sex disparities in the burden of urolithiasis in 204 countries and territories, 1990-2021.
Junjiong ZHENG ; Qihang ZHANG ; Jie ZHANG ; Yuhui YAO ; Li CHEN ; Yunfei LIU ; Yi SONG ; Tianxin LIN ; Guohua HE
Chinese Medical Journal 2025;138(16):1973-1983
BACKGROUND:
Urolithiasis is a widespread disease with a high prevalence worldwide. This study aims to evaluate the disease burden of urolithiasis and its trends from 1990 to 2021 globally, based on the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 database.
METHODS:
The numbers and age-standardized rates (ASRs) of incidence, disability-adjusted life years (DALYs), and mortality of urolithiasis were extracted from GBD 2021 to represent the disease burden. Joinpoint regression analyses were conducted to assess the temporal trends in the burden of urolithiasis. The male-to-female ASR ratio indices were used to evaluate sex disparities. Additionally, we explored the relationship between the ASR ratio and the sociodemographic index (SDI).
RESULTS:
The total numbers of incidence, DALY, and mortality of urolithiasis were 105,983,780 cases (95% uncertainty interval [UI] = 88,349,356-128,645,155 cases), 693,444 cases (95% UI = 567,765-850,490 cases), and 17,672 cases (95% UI = 13,932-21,241 cases), respectively, in 2021. There is an increasing trend in the number of these measures globally, whereas the ASRs have decreased over the past 30 years. The age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR) were significantly higher in males than in females in 2021. The sex disparities in the age-standardized DALY rate (ASDR) and ASMR of urolithiasis were negatively correlated with the SDI. In 2021, the ASIR of urolithiasis was 964.70 (95% UI = 801.26-1175.09) per 100,000 people in China, which is much lower than the global average (1242.84 [95% UI = 1034.94-1506.99] per 100,000 people). Compared with the global average, a more pronounced decline in ASIR was observed in China from 1793.16 (1446.0-2235.14) in 1990 to 964.70 (801.26-1175.09) per 100,000 people in 2021.
CONCLUSIONS
Urolithiasis poses a significant healthcare burden worldwide. More robust global and national strategies are warranted to address the prevention and treatment, especially in low SDI countries and regions.
Humans
;
Urolithiasis/mortality*
;
Male
;
Female
;
Incidence
;
Global Burden of Disease
;
Disability-Adjusted Life Years
;
Adult
;
Middle Aged
;
Risk Factors
;
Sex Factors
2.Tetrahydropalmatine acts on α7nAChR to regulate inflammation and polarization of BV2 microglia.
Yan-Jun WANG ; Guo-Liang DAI ; Pei-Yao CHEN ; Hua-Xi HANG ; Xin-Fang BIAN ; Yu-Jie CHEN ; Wen-Zheng JU
China Journal of Chinese Materia Medica 2025;50(11):3117-3126
Based on the α7 nicotinic acetylcholine receptor(α7nAChR), this study examined how tetrahydropalmatine(THP) affected BV2 microglia exposed to lipopolysaccharide(LPS), aiming to clarify the possible mechanism underlying the anti-depression effect of THP from the perspectives of preventing inflammation and regulating polarization. First, after molecular docking and determination of the content of Corydalis saxicola Bunting total alkaloids, THP was initially identified as a possible anti-depression component. The BV2 microglia model of inflammation was established with LPS. BV2 microglia were allocated into a normal group, a model group, low-and high-dose(20 and 40 μmol·L~(-1), respectively) THP groups, and a THP(20 μmol·L~(-1))+α7nAChR-specific antagonist MLA(1 μmol·L~(-1)) group. The CCK-8 assay was used to screen the safe concentration of THP. A light microscope was used to examine the morphology of the cells. Western blot and immunofluorescence were used to determine the expression of α7nAChR. qRT-PCR was performed to determine the mRNA levels of inducible nitric oxide synthase(iNOS), cluster of differentiation 86(CD86), suppressor of cytokine signaling 3(SOCS3), arginase-1(Arg-1), cluster of differentiation 206(CD206), tumor necrosis factor(TNF)-α, interleukin(IL)-6, and IL-1β. Enzyme-linked immunosorbent assay(ELISA) was employed to measure the levels of TNF-α, IL-6, and IL-1β in the cell supernatant. The experimental results showed that THP at concentrations of 40 μmol·L~(-1) and below had no effect on BV2 microglia. THP improved the morphology of BV2 microglia, significantly up-regulated the protein level of α7nAChR, significantly down-regulated the mRNA levels of iNOS, CD86, SOCS3, TNF-α, IL-6, and IL-1β, significantly up-regulated the mRNA levels of Arg-1 and CD206, and dramatically lowered the levels of TNF-α, IL-6, and IL-1β in the cell supernatant. However, the antagonist MLA abolished the above-mentioned ameliorative effects of THP on LPS-treated BV2 microglia. As demonstrated by the aforementioned findings, THP protected LPS-treated BV2 microglia by regulating the M1/M2 polarization and preventing inflammation, which might be connected to the regulation of α7nAChR on BV2 microglia.
Berberine Alkaloids/chemistry*
;
alpha7 Nicotinic Acetylcholine Receptor/chemistry*
;
Microglia/metabolism*
;
Mice
;
Animals
;
Cell Line
;
Corydalis/chemistry*
;
Humans
;
Molecular Docking Simulation
;
Inflammation/drug therapy*
;
Nitric Oxide Synthase Type II/immunology*
;
Tumor Necrosis Factor-alpha/immunology*
3.Bioinformatics analysis of efferocytosis-related genes in diabetic kidney disease and screening of targeted traditional Chinese medicine.
Yi KANG ; Qian JIN ; Xue-Zhe WANG ; Meng-Qi ZHOU ; Hui-Juan ZHENG ; Dan-Wen LI ; Jie LYU ; Yao-Xian WANG
China Journal of Chinese Materia Medica 2025;50(14):4037-4052
This study employed bioinformatics to screen the feature genes related to efferocytosis in diabetic kidney disease(DKD) and explores traditional Chinese medicine(TCM) regulating these feature genes. The GSE96804 and GSE30528 datasets were integrated as the training set, and the intersection of differentially expressed genes and efferocytosis-related genes(ERGs) was identified as DKD-ERGs. Subsequently, correlation analysis, protein-protein interaction(PPI) network construction, enrichment analysis, and immune infiltration analysis were performed. Consensus clustering was conducted on DKD patients based on the expression levels of DKD-ERGs, and the expression levels, immune infiltration characteristics, and gene set variations between different subtypes were explored. Eight machine learning models were constructed and their prediction performance was evaluated. The best-performing model was evaluated by nomograms, calibration curves, and external datasets, followed by the identification of efferocytosis-related feature genes associated with DKD. Finally, potential TCMs that can regulate these feature genes were predicted. The results showed that the training set contained 640 differentially expressed genes, and after intersecting with ERGs, 12 DKD-ERGs were obtained, which demonstrated mutual regulation and immune modulation effects. Consensus clustering divided DKD into two subtypes, C1 and C2. The support vector machine(SVM) model had the best performance, predicting that growth arrest-specific protein 6(GAS6), S100 calcium-binding protein A9(S100A9), C-X3-C motif chemokine ligand 1(CX3CL1), 5'-nucleotidase(NT5E), and interleukin 33(IL33) were the feature genes of DKD. Potential TCMs with therapeutic effects included Astragali Radix, Trionycis Carapax, Sargassum, Rhei Radix et Rhizoma, Curcumae Radix, and Alismatis Rhizoma, which mainly function to clear heat, replenish deficiency, activate blood, resolve stasis, and promote urination and drain dampness. Molecular docking revealed that the key components of these TCMs, including β-sitosterol, quercetin, and sitosterol, exhibited good binding activity with the five target genes. These results indicated that efferocytosis played a crucial role in the development and progression of DKD. The feature genes closely related to both DKD and efferocytosis, such as GAS6, S100A9, CX3CL1, NT5E, and IL33, were identified. TCMs such as Astragali Radix, Trionycis Carapa, Sargassum, Rhei Radix et Rhizoma, Curcumae Radix, and Alismatis Rhizoma may provide a new therapeutic strategy for DKD by regulating efferocytosis.
Humans
;
Computational Biology
;
Diabetic Nephropathies/physiopathology*
;
Protein Interaction Maps
;
Medicine, Chinese Traditional
;
Drugs, Chinese Herbal
;
Phagocytosis/genetics*
;
Efferocytosis
4.A novel homozygous mutation of CFAP300 identified in a Chinese patient with primary ciliary dyskinesia and infertility.
Zheng ZHOU ; Qi QI ; Wen-Hua WANG ; Jie DONG ; Juan-Juan XU ; Yu-Ming FENG ; Zhi-Chuan ZOU ; Li CHEN ; Jin-Zhao MA ; Bing YAO
Asian Journal of Andrology 2025;27(1):113-119
Primary ciliary dyskinesia (PCD) is a clinically rare, genetically and phenotypically heterogeneous condition characterized by chronic respiratory tract infections, male infertility, tympanitis, and laterality abnormalities. PCD is typically resulted from variants in genes encoding assembly or structural proteins that are indispensable for the movement of motile cilia. Here, we identified a novel nonsense mutation, c.466G>T, in cilia- and flagella-associated protein 300 ( CFAP300 ) resulting in a stop codon (p.Glu156*) through whole-exome sequencing (WES). The proband had a PCD phenotype with laterality defects and immotile sperm flagella displaying a combined loss of the inner dynein arm (IDA) and outer dynein arm (ODA). Bioinformatic programs predicted that the mutation is deleterious. Successful pregnancy was achieved through intracytoplasmic sperm injection (ICSI). Our results expand the spectrum of CFAP300 variants in PCD and provide reproductive guidance for infertile couples suffering from PCD caused by them.
Adult
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Female
;
Humans
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Male
;
Pregnancy
;
China
;
Ciliary Motility Disorders/genetics*
;
Codon, Nonsense
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East Asian People/genetics*
;
Exome Sequencing
;
Homozygote
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Infertility, Male/genetics*
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Kartagener Syndrome/genetics*
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Pedigree
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Sperm Injections, Intracytoplasmic
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Cytoskeletal Proteins/genetics*
5.The causal association between circulating zinc, magnesium, and other minerals with autism spectrum disorder: a Mendelian randomization study.
Bing-Quan ZHU ; Sai-Jing CHEN ; Tian-Miao GU ; Si-Run JIN ; Dan YAO ; Shuang-Shuang ZHENG ; Jie SHAO
Chinese Journal of Contemporary Pediatrics 2025;27(9):1098-1104
OBJECTIVES:
To evaluate the causal association between circulating levels of zinc, magnesium, and other minerals and autism spectrum disorder (ASD).
METHODS:
A two-sample Mendelian randomization (MR) analysis was performed using summary statistics from large-scale genome-wide association studies of European populations, including 18 382 ASD cases and 27 969 controls. Genetic data for iron, calcium, and magnesium were obtained from the UK Biobank, and data for zinc and selenium were sourced from an Australian-British cohort. A total of 351 genetic instrumental variables were selected. Causal inference was performed using inverse-variance weighting as the primary analysis method. Sensitivity analyses were performed by Cochran's Q test and MR-PRESSO global test to assess the robustness of the findings.
RESULTS:
No statistically significant causal effect was observed for circulating zinc, magnesium, calcium, selenium, or iron levels on ASD risk (all P>0.05). The odds ratios and 95% confidence intervals from the inverse-variance weighting analysis were 0.934 (0.869-1.003) for zinc, 1.315 (0.971-1.850) for magnesium, 1.055 (0.960-1.159) for calcium, 1.015 (0.953-1.080) for selenium, and 0.946 (0.687-1.303) for iron. Sensitivity analysis revealed significant heterogeneity in the causal association between circulating calcium and ASD (P=0.006), while the effect estimate remained stable after MR-PRESSO correction (P=0.487). The causal effect estimates for the remaining minerals demonstrated good robustness.
CONCLUSIONS
This study did not find significant evidence supporting a causal association between circulating zinc, magnesium, calcium, selenium, or iron levels and ASD risk, providing important clues for the etiology of ASD and precision nutritional interventions.
Humans
;
Mendelian Randomization Analysis
;
Autism Spectrum Disorder/genetics*
;
Magnesium/blood*
;
Zinc/blood*
;
Minerals/blood*
;
Genome-Wide Association Study
;
Selenium/blood*
6.Effect of Hesperidin on Chronic Unpredictable Mild Stress-Related Depression in Rats through Gut-Brain Axis Pathway.
Hui-Qing LIANG ; Shao-Dong CHEN ; Yu-Jie WANG ; Xiao-Ting ZHENG ; Yao-Yu LIU ; Zhen-Ying GUO ; Chun-Fang ZHANG ; Hong-Li ZHUANG ; Si-Jie CHENG ; Xiao-Hong GU
Chinese journal of integrative medicine 2025;31(10):908-917
OBJECTIVES:
To determine the pharmacological impact of hesperidin, the main component of Citri Reticulatae Pericarpium, on depressive behavior and elucidate the mechanism by which hesperidin treats depression, focusing on the gut-brain axis.
METHODS:
Fifty-four Sprague Dawley male rats were randomly allocated to 6 groups using a random number table, including control, model, hesperidin, probiotics, fluoxetine, and Citri Reticulatae Pericarpium groups. Except for the control group, rats in the remaining 5 groups were challenged with chronic unpredictable mild stress (CUMS) for 21 days and housed in single cages. The sucrose preference test (SPT), immobility time in the forced swim test (FST), and number in the open field test (OFT) were performed to measure the behavioral changes in the rats. Enzyme-linked immunosorbent assay was used to determine the levels of 5-hydroxytryptamine (5-HT) and brain-derived neurotrophic factor (BDNF) in brain tissue, and the histopathology was performed to evaluate the changes of colon tissue, together with sequencing of the V3-V4 regions of 16S rRNA gene on feces to explore the changes of intestinal flora in the rats.
RESULTS:
Compared to the control group, the rats in the model group showed notable reductions in body weight, SPF, and number in OFT (P<0.01). Hesperidin was found to ameliorate depression induced by CUMS, as seen by improvements in body weight, SPT, immobility time in FST, and number in OFT (P<0.05 or P<0.01). Regarding neurotransmitters, it was found that at a dose of 50 mg/kg hesperidin treatment upregulated the levels of 5-HT and BDNF in depressed rats (P<0.05). Compared to the control group, the colon tissue of the model group exhibited greater inflammatory cell infiltration, with markedly reduced numbers of goblet cells and crypts and were significantly improved following treatment with hesperidin. Simultaneously, the administration of hesperidin demonstrated a positive impact on the gut microbiome of rats treated with CUMS, such as Shannon index increased and Simpson index decreased (P<0.01), while the abundance of Pseudomonadota and Bacteroidota increased in the hesperidin-treated group (P<0.05).
CONCLUSION
The mechanism responsible for the beneficial effects of hesperidin on depressive behavior in rats may be related to inhibition of the expressions of BDNF and 5-HT and preservation of the gut microbiota.
Animals
;
Hesperidin/therapeutic use*
;
Rats, Sprague-Dawley
;
Depression/drug therapy*
;
Male
;
Stress, Psychological/drug therapy*
;
Brain/metabolism*
;
Brain-Derived Neurotrophic Factor/metabolism*
;
Serotonin/metabolism*
;
Gastrointestinal Microbiome/drug effects*
;
Behavior, Animal/drug effects*
;
Rats
;
Brain-Gut Axis/drug effects*
;
Chronic Disease
;
Colon/drug effects*
7.Construction and validation of a risk prediction model for postoperative delirium in primary liver cancer patients aged 60 years or older
Yao MA ; Ting LI ; Qiushi ZHANG ; Ling HU ; Jie ZHENG
Journal of Clinical Hepatology 2024;40(9):1816-1821
Objective To construct a risk prediction model for postoperative delirium in elderly patients with primary liver cancer,and to validate its application value.Methods A retrospective analysis was performed for 175 elderly patients with primary liver cancer who were admitted to Tianyou Hospital Affiliated to Wuhan University of Science and Technology from March 2020 to January 2023.The incidence rate of postoperative delirium was recorded,and the univariate and multivariate regression analyses was performed for factors that may affect the onset of delirium.A prediction model was constructed,and the clinical application value of the prediction model was analyzed and validated.The independent-samples t test was used for comparison of continuous data between two groups,and the chi-square test was used for comparison of categorical data between two groups.The univariate and multivariate logistic regression analyses were performed for factors that may affect the onset of delirium in elderly patients with primary liver cancer,and the receiver operating characteristic(ROC)curve was used to investigate the value of the model in predicting the onset of delirium.Results Among the 175 elderly patients with primary liver cancer,41 experienced postoperative delirium,with an incidence rate of 23.43%.The univariate analysis showed that age,presence of more than two underlying diseases,Child-Pugh class of liver function,preoperative blood lactate,time of operation,preoperative hemoglobin,and preoperative serum albumin were associated with the onset of postoperative delirium(t=3.534,χ2=12.000,χ2=4.938,t=7.561,t=5.768,t=5.141,t=6.148,P<0.05).The multivariate logistic regression analysis of the factors with statistical significance in the univariate analysis showed that time of operation,preoperative hemoglobin,preoperative serum albumin,and age were included in the regression model(P<0.05),and they were independent risk factors for the onset of postoperative delirium in elderly patients with primary liver cancer.According to the results of the multivariate logistic regression analysis,a prediction model for postoperative delirium in elderly patients with primary liver cancer was constructed as follows:-2.222+3.678×time of operation-2.441×preoperative hemoglobin-3.904×preoperative serum albumin+1.807×age.The prediction performance of this model was analyzed,with an area under the ROC curve of 0.931(95%confidence interval:0.890-0.971,P<0.001)and an optimal cut-off value of-1.604(with a sensitivity of 87.80%and a specificity of 87.30%).A total of 56 elderly patients with primary liver cancer who underwent radical surgery in Tianyou Hospital Affiliated to Wuhan University of Science and Technology from February 2023 to June 2023 were enrolled in a prospective study for model validation.According to the above risk prediction model,there were 14 patients in the high-risk group and 42 patients in the low-risk group,and the high-risk group had a significantly higher incidence rate of postoperative delirium than the low-risk group(71.43%vs 11.90%,χ2=16.056,P<0.05).Conclusion Age,time of operation,preoperative serum albumin,and preoperative hemoglobin are important influencing factors for the onset of postoperative delirium in elderly patients with primary liver cancer.The risk prediction model based on these factors has a good prediction performance,which holds promise for further in-depth research.
8.A Prognostic Model Based on Colony Stimulating Factors-related Genes in Triple-negative Breast Cancer
Yu-Xuan GUO ; Zhi-Yu WANG ; Pei-Yao XIAO ; Chan-Juan ZHENG ; Shu-Jun FU ; Guang-Chun HE ; Jun LONG ; Jie WANG ; Xi-Yun DENG ; Yi-An WANG
Progress in Biochemistry and Biophysics 2024;51(10):2741-2756
ObjectiveTriple-negative breast cancer (TNBC) is the breast cancer subtype with the worst prognosis, and lacks effective therapeutic targets. Colony stimulating factors (CSFs) are cytokines that can regulate the production of blood cells and stimulate the growth and development of immune cells, playing an important role in the malignant progression of TNBC. This article aims to construct a novel prognostic model based on the expression of colony stimulating factors-related genes (CRGs), and analyze the sensitivity of TNBC patients to immunotherapy and drug therapy. MethodsWe downloaded CRGs from public databases and screened for differentially expressed CRGs between normal and TNBC tissues in the TCGA-BRCA database. Through LASSO Cox regression analysis, we constructed a prognostic model and stratified TNBC patients into high-risk and low-risk groups based on the colony stimulating factors-related genes risk score (CRRS). We further analyzed the correlation between CRRS and patient prognosis, clinical features, tumor microenvironment (TME) in both high-risk and low-risk groups, and evaluated the relationship between CRRS and sensitivity to immunotherapy and drug therapy. ResultsWe identified 842 differentially expressed CRGs in breast cancer tissues of TNBC patients and selected 13 CRGs for constructing the prognostic model. Kaplan-Meier survival curves, time-dependent receiver operating characteristic curves, and other analyses confirmed that TNBC patients with high CRRS had shorter overall survival, and the predictive ability of CRRS prognostic model was further validated using the GEO dataset. Nomogram combining clinical features confirmed that CRRS was an independent factor for the prognosis of TNBC patients. Moreover, patients in the high-risk group had lower levels of immune infiltration in the TME and were sensitive to chemotherapeutic drugs such as 5-fluorouracil, ipatasertib, and paclitaxel. ConclusionWe have developed a CRRS-based prognostic model composed of 13 differentially expressed CRGs, which may serve as a useful tool for predicting the prognosis of TNBC patients and guiding clinical treatment. Moreover, the key genes within this model may represent potential molecular targets for future therapies of TNBC.
9.Experts consensus on standard items of the cohort construction and quality control of temporomandibular joint diseases (2024)
Min HU ; Chi YANG ; Huawei LIU ; Haixia LU ; Chen YAO ; Qiufei XIE ; Yongjin CHEN ; Kaiyuan FU ; Bing FANG ; Songsong ZHU ; Qing ZHOU ; Zhiye CHEN ; Yaomin ZHU ; Qingbin ZHANG ; Ying YAN ; Xing LONG ; Zhiyong LI ; Yehua GAN ; Shibin YU ; Yuxing BAI ; Yi ZHANG ; Yanyi WANG ; Jie LEI ; Yong CHENG ; Changkui LIU ; Ye CAO ; Dongmei HE ; Ning WEN ; Shanyong ZHANG ; Minjie CHEN ; Guoliang JIAO ; Xinhua LIU ; Hua JIANG ; Yang HE ; Pei SHEN ; Haitao HUANG ; Yongfeng LI ; Jisi ZHENG ; Jing GUO ; Lisheng ZHAO ; Laiqing XU
Chinese Journal of Stomatology 2024;59(10):977-987
Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.
10.Cell membrane-penetrating capacity of hPP10-Cu,Zn-SOD fusion protein and its antioxidant and anti-inflammatory activity
Jie ZHANG ; Junyan YAO ; Yinggui YANG ; Fei WANG ; Qingyou ZHENG ; Xin LI ; Changbai LIU
Journal of Southern Medical University 2024;44(6):1059-1069
Objective To investigate the cell membrane-penetrating capacity of human cell-penetrating peptide hPP10 carrying human antioxidant protein Cu-Zn superoxide dismutase(Cu,Zn-SOD)and assess the antioxidant and anti-inflammatory activity of these fusion proteins.Methods The fusion protein hPP10-Cu,Zn-SOD was obtained by genetic engineering and identified by Western blotting.The membrane-penetrating ability of the fusion protein was evaluated by immunofluorescence assay,fluorescence colocalization assay and Western blotting,its SOD enzyme activity was detected using a commercial kit,and its effect on cell viability was assessed with MTT assay.In a HEK293 cell model of H2O2-induced oxidative stress,the effect of hPP10-Cu,Zn-SOD on cell apoptosis was analyzed with flow cytometry and RT-qPCR,and its antioxidant effect was assessed using reactive oxygen species(ROS)assay;its anti-inflammatory effect was evaluated in mouse model of TPA-induced ear inflammation by detecting expression of the inflammatory factors using RT-qPCR,Western blotting and immunohistochemistry.Results The fusion protein hPP10-Cu,Zn-SOD was successfully obtained.Immunofluorescence assay confirmed obvious membrane penetration of this fusion protein in HEK293 cells,localized both in the cell membrane and the cell nuclei after cell entry.hPP10-Cu,Zn-SOD at the concentration of 5 μmol/L exhibited strong antioxidant activity with minimal impact on cell viability at the concentration up to 10 μmol/L.The fusion protein obviously inhibited apoptosis and decreased intracellular ROS level in the oxidative stress cell model and significantly reduced mRNA and protein expression of the inflammatory factors in the mouse model of ear inflammation.Conclusion The fusion protein hPP10-Cu,Zn-SOD capable of penetrating the cell membrane possesses strong antioxidant and anti-inflammatory activities with only minimal cytotoxicity,demonstrating the value of hPP10 as an efficient drug delivery vector and the potential of hPP10-Cu,Zn-SOD in the development of skincare products

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