1.Therapeutic effect and mechanism of hordenine on ovalbumin-induced allergic rhinitis in rats
Junyan LI ; Tao LIU ; Fang SUN ; Jiahui HUANG ; Shuzhen MAO ; Jing YAO
Journal of China Pharmaceutical University 2025;56(1):80-90
To investigate the therapeutic effect and related mechanisms of hordenine on ovalbumin (OVA)-induced allergic rhinitis (AR) in rats, HE and AB-PAS staining were used to detect the improvement of pathological damage to the nasal mucosa induced by hordenine. ELISA was employed to detect the effect of hordenine on OVA-sIgE in serum and IL-4 in the nasal mucosa supernatant of rats. IHC and Western blot experiments were undertaken to examine the effect of hordenine on Th1/Th2 cell balance. Bioinformatics analysis was performed to predict pathways, which were verified by in vivo and in vitro experiments. The experimental results showed that hordenine could alleviate the behavioral manifestations of OVA-induced AR rats, alleviate nasal mucosal pathological damage caused by AR, and reduce the secretion of OVA-sIgE and IL-4. In addition, hordenine could regulate the Th1/Th2 balance. Bioinformatics analysis results showed that the potential pathway of action of hordenine on AR was the phosphoinositide 3 kinase (PI3K)/protein kinase B (Akt) signaling pathway. The in vivo experimental results showed that the expression of PI3K and p-Akt proteins in the nasal mucosa of the model group rats was significantly increased (P < 0.01), and that the protein expression level was significantly decreased after the administration of hordenine, which was also confirmed by an in vitro experiment. This study suggests that hordenine may regulate Th1/Th2 cell balance through the PI3K/Akt signaling pathway, thereby exerting an alleviating effect on OVA-induced AR.
2.Clinical Classification Model for Human Adenovirus Infection in the Respiratory Tract of Children Based on Complete Blood Cell Count
Junyan ZHONG ; Junxiang LI ; Mei HUANG ; Yuejuan WANG ; Luohui LIU ; Xiaohui CHEN ; Min CAO
Journal of Sun Yat-sen University(Medical Sciences) 2025;46(5):889-898
ObjectiveTo develop a classification model based on complete blood count (CBC) parameters combined with clinical factors to predict severe respiratory infections caused by Human adenovirus (HAdV) in pediatric patients. MethodsFrom September 2023 to September 2024, the CBC parameters and related clinical data from pediatric patients diagnosed with HAdV infection were collected. Principal component analysis and random forest models were used to identify potential predictors of severe cases. ResultsA total of 668 pediatric patients were included, with 564 cases assigned to the training cohort and 104 cases to the validation cohort. Severe cases were defined as pneumonia and/or fever lasting ≥5 days (pneumonia or prolonged fever, PorPF). Principal component analysis and feature importance analysis (Mean Decrease Gini value) identified the monocytosis ratio (PMono), red blood cell count (RBC), and platelet count (PLT) as the most critical CBC parameters. Logistic regression analysis revealed that oxygen therapy (OR = 4.367, 95% CI: 1.568–12.161) and increased work of breathing (OR = 3.904, 95% CI: 2.146–7.101) were relative risk factors for PorPF. Meanwhile, higher PMono (OR = 0.696, 95% CI: 0.640–0.757), RBC (OR = 0.201, 95% CI: 0.124–0.325), and PLT (OR = 0.990, 95% CI: 0.987–0.994) were protective factors. When PMono was used as a predictive marker for PorPF, the area under the receiver operating characteristic curve (AUC) was 0.648 and 0.705, respectively. A random forest model incorporating four risk factors [PMono, RBC, PLT, and hematocrit (HCT)] was constructed to classify PorPF and general cases, achieving AUCs of 0.688 and 0.768, respectively. ConclusionsPMono, RBC, and PLT may serve as characteristic CBC indicators for predicting pneumonia or prolonged fever in children with HAdV infection. A risk factor model built using PMono, RBC, PLT, and HCT offers a relatively simple and accurate approach to predicting severe cases in pediatric HAdV infections.
3.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
4.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
5.Mental health disparities in people living with human immunodeficiency virus: A cross-sectional study on physician-patient concordance and treatment regimens
Jinchuan SHI ; Zhongdong ZHANG ; Junyan ZHANG ; Yishu ZHANG ; Jiating QIU ; Fang LIU ; Daoyuan SONG ; Yanfang MA ; Lianmei ZHONG ; Hongxing WANG ; Xiaolei LIU
Chinese Medical Journal 2024;137(18):2223-2232
Background::Human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) can profoundly affect the mental health of the people living with HIV (PLWH), with higher rates of anxiety, depression, and sleep disturbances. The disparities in neuropsychological problems evaluated by physicians and self-assessed by patients are still unknown.Methods::A total of 5000 PLWH and 500 physicians from 167 hospitals were enrolled in this cross-sectional study from September 2022 to February 2023. 4-Item Patient Health Questionnaire (PHQ-4) was used for the evaluation of depressive issues and anxiety issues by PLWH. Each physician assessed 10 PLWH under their care for the presence of depressive or anxiety issues. The primary outcomes of this study are the concordance rates on the depressive issues and anxiety issues evaluation between physicians and PLWH. The Cohen’s kappa test was used to assess the agreement between physicians and PLWH.Results::The concordance rate for the evaluation of depressive issues is 73.84% (95% confidence interval [CI]: 72.60-75.04%), and it is significantly different from the expected rate of 80% ( P <0.001). Similarly, the concordance rate for the evaluation of anxiety issues is 71.74% (95% CI: 70.47-72.97%), which is significantly different from the expected rate of 80% as per the null hypothesis ( P <0.001). The overestimation rate by physicians on depressive issues is 12.20% (95% CI: 11.32-13.14%), and for anxiety issues is 12.76% (95% CI: 11.86-13.71%). The mismatch rate for depressive issues is 26.16% (95% CI: 24.96-27.40%), and for anxiety issues is 28.26% (95% CI: 27.02-29.53%). The underestimation rate by physicians on depressive issues is 13.96% (95% CI: 13.03-14.95%), and for anxiety issues is 15.50% (95% CI: 14.52-16.53%). For the treatment regiments, PLWH sustained on innovative treatment regimen (IR) related to a lower prevalence of depressive issues (odds ratio [OR] = 0.71, 95% CI: 0.59-0.87, P = 0.003) and a lower prevalence of anxiety issues (OR = 0.63, 95% CI: 0.52-0.76, P <0.001). PLWH switch from conventional treatment regimen (CR) to IR also related to a lower prevalence of depressive issues (OR = 0.79, 95% CI: 0.64-0.98) and a lower prevalence of anxiety issues (OR = 0.81, 95% CI: 0.67-0.99). Conclusion::Nearly one in three PLWH had their condition misjudged by their physicians. The findings underscore the need for improved communication and standardized assessment protocols in the care of PLWH, especially during the acute phase of HIV infection.
6.Achievements of thyroid surgery in China in recent ten years
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(1):1-8
In the past decade,thyroid surgery in China has developed rapidly.With the improvement of thyroid diagnosis technology,the standardization of thyroid surgery,the clinical application of systematic therapy,and the progress in fundamental research,thyroid surgery has achieved all-round development.Patients with thyroid disease have benefited significantly from safer,more standardized,more effective,and more diverse treatments,which results in the remarkable increase in the 5-year survival rate.Moreover,Chinese experts have published a number of guidelines and expert consensus related to thyroid surgery,which promotes the standardization of the diagnosis and treatment of thyroid disease.Additionally,the specialized multidisciplinary teams in cancer centers allow patients to receive more standardized diagnosis and treatment of complex thyroid diseases.In the present article,we summarize the important developments of China's thyroid surgery in the past decade,including preoperative diagnosis technology,surgical methods,operation safety,application of minimally invasive techniques,diagnosis and treatment of special thyroid cancers,multidisciplinary diagnosis and treatment models,and standardized postoperative managements.We expect to popularize the concept of standardized diagnosis and treatment of thyroid diseases,and improve the level of standardized diagnosis and treatment in thyroid surgery.
7.Comparison of efficacy and safety of direct thrombectomy and bridging thrombectomy in the treat-ment of acute anterior circulation large vessel occlusion stroke under different collateral circulation statuses
Yu GAO ; Zi'ang LI ; Jian ZHANG ; Hanpeng LIU ; Ping ZHANG ; Ruifang YAN ; Junyan YUE ; Hongkai CUI
Journal of Xinxiang Medical College 2024;41(2):169-174,179
Objective To compare the safety and efficacy of direct thrombectomy versus bridging thrombectomy in the treatment of acute anterior circulation large vessel occlusion stroke under different collateral circulation statuses.Methods Totally 93 patients with acute anterior circulation ischemic stroke admitted to the First Affiliated Hospital of Xinxiang Medical University from September 2020 to March 2023 were selected as the research subjects.Patients were divided into direct throm-bectomy group(n=47)and bridging thrombectomy group(n=46)based on the type of thrombectomy.Patients in the direct thrombectomy group received direct intravascular thrombectomy,while patients in the bridging thrombectomy group received intravenous thrombolysis with alteplase combined with mechanical thrombectomy.According computed tomography angiography,the collateral circulation Tan classification was applied to divide the patients into good collateral circulation sub-group and poor collateral circulation sub-group.The modified thrombolysis in cerebral infarction grading(mTICI)was used to evaluate vessel recanalization.Head computed tomography plain scan was performed at 24-48 hours postoperatively to assess if there was hemorrhagic transformation,and modified Rankin Scale score was performed at 90 days postoperatively.Information such as imaging examination time,femoral artery puncture time,vessel recanalization time after thrombectomy,prognosis and spontaneous non-traumatic symptomatic intracerebral hemorrhage(SICH)were collected.Results The age,gender,baseline Alberta stroke program early computed tomography score,baseline national institutes of health stroke scale score,proportions of hypertension,diabetes and atrial fibrillation,baseline systolic pressure,creatinine,baseline blood glucose,platelet count,occlusion site,stroke etiologies and collateral circulation status of patients in the two groups were not statistically significantly different(P>0.05).There were no significant differences in the post-admission imaging examination time,femoral artery puncture time,vessel recanalization time after thrombectomy,successful vascular reperfusion rate,good prognosis rate,mortality rate,and SICH incidence between the two groups(P>0.05).The hemorrhagic transformation rate of patients in the direct thrombectomy group was significantly lower than that in the bridging thrombectomy group(P<0.05).There were no significant differences in the post-admission imaging examination time,femoral artery puncture time,vessel recanalization time after thrombectomy,successful vascular reperfusion rate,good prognosis rate,mortality rate,and SICH incidence between patients with good collateral circulation and patients with poor collateral circulation in the two groups(P>0.05).The hemorrhagic transformation rate of patients with good and poor collateral circulation in the direct thrombectomy group was significantly lower than that in the bridging thrombectomy group(P<0.05).Conclusion Under different collateral circulation conditions,the safety and efficacy of direct thrombectomy and bridging thrombectomy in the treatment of acute anterior circulation large vessel occlusion stroke are similar,but bridging thrombectomy is more likely to result in cerebral hemorrhage transformation compared with direct thrombectomy.
8.Current and predicted disease burden in middle aged and elderly population aged 55 years and above in Shenzhen, 2016-2030
Junyan XI ; Ruiqi MING ; Yijing WANG ; Yingbin FU ; Zhen ZHANG ; Jia ZHANG ; Jianjun BAI ; Yining XIANG ; Xiao LIN ; Jing GU ; Yuantao HAO ; Gang LIU
Chinese Journal of Epidemiology 2024;45(11):1550-1558
Objective:To analyze the disease burden in middle-aged and elderly population aged ≥55 in Shenzhen from 2016 to 2030 and provide evidence for the development of healthy aging strategies.Methods:The years of life lost (YLL), years lost due to disability (YLD), and the disability-adjusted life year (DALY) in this population from 2016 to 2022 were calculated. Joinpoint log-linear regression model was used to analyze the time trend. Bayesian age-period-cohort model and grey system model were used to predict YLL, YLD, and DALY in this population in 2030.Results:From 2016 to 2022, the crude DALY rate showed a transient fluctuation in age group 55-74 years, but a pronounced increase in age group ≥85 years. The proportions of YLL and YLD due to non-communicable diseases in all age groups was considerably higher than those due to communicable and nutritional diseases and injuries. In 2022, in all age groups, the YLL due to neoplasms (55-74 years old) and cardiovascular disease (≥75 years old) ranked first, and the YLD due to musculoskeletal disorder ranked first. By 2030, the causes of YLL and YLD ranking first in each age group would be remained, while the ranks of some causes would increase.Conclusions:The age specific characteristics of current and predicted disease burden differed in individuals aged ≥55 years. Therefore, it is necessary to allocate social and medical resources according to the disease burden pattern.
9.Problems and suggestions in the implementation of drug centralized volume-based procurement policies in the hospitals
Weihua KONG ; Qi QIAO ; Guoqiang LIU ; Nan CHEN ; Chengwu SHEN ; Qi CHEN ; Feng QIU ; Jianhua WANG ; Ling JIANG ; Qinghong LU ; Junyan WU ; Yafeng WANG ; Likai LIN ; Jiajia FENG ; Hong CHENG
Chinese Journal of Hospital Administration 2024;40(7):535-540
Objective:To explore the challenges in the implementation of drug centralized volume-based procurement policies in hospitals and propose corresponding optimization suggestions.Methods:From August to December 2023, a purposive sampling was conducted to select 11 pharmaceutical experts from tertiary hospitals in China for Delphi method. The survey content included " policy recommendations for promoting the acceleration and expansion of national drug centralized procurement and retaining surplus medical insurance funds for centralized procurement" .Results:Survey participants gave feedback on a set of existing problems found in the implementation of drug centralized procurement policies and proposed corresponding optimization methods. Kendall′s W coefficient of the specialist consultation was 0.332( P<0.05), demonstrating good consistency and concentration of the expert opinions. Among the problems, the score of drug supply guarantee was the highest(mean value of importance was 4.45). At the same time, the recommendation of strengthening monitoring and early warning, coordination and dispatch, and effectively ensuring the supply of centralized drug procurement had the highest score and concentration(mean value of importance was 4.91, coefficient of variation was 0.06). Conclusions:Through Delphi method, this study revealed issues and optimization methods in the implementation of drug centralized procurement policies in hospitals. The findings could provide valuable insights for improvements in the pharmaceutical sector and future policy adjustments.
10.Effects of long non-coding RNA H19 regulating miRNA-675 and PTEN on the cell proliferation of glioma
Ping LIU ; Ningning ZHANG ; Ying ZHANG ; Ranxin HUANG ; Yuexiang ZHANG ; Lulu LI ; Zemin QIN ; Xiuling WANG ; Sulan WANG ; Jianlan CHANG ; Junyan YU
Cancer Research and Clinic 2024;36(11):863-868
Objective:To investigate the effect of long non-coding RNA (lncRNA) H19 regulating miRNA-675 (miR-675) and phosphatase and tensin homologue-deleted chromosome ten gene (PTEN) on the cell proliferation of glioma.Methods:Glioma cell lines U87-MG and U251 were chosen. The siRNA online design tool wad used to design small interfering RNA (siRNA) targeting H19. U87-MG and U251 cell lines with the stable knockdown of H19 were constructed (the stable knockdown of H19 group), and the cells randomly transfected with siRNA plasmid were taken as the control group, and normal cultured cells were treated as the blank group. Additionally, miR-675 and control microRNA were transfected into U87-MG and U251 with the stable knockdown of H19 (the overexpressing miR-675 group and the corresponding control group). Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the relative expression levels of miR-675 and H19 in each group; the methyl thiazolyl tetrazolium (MTT) assay was used to detect the cell proliferation ability; the dual luciferase reporter gene assay was used to verify the targeting relationship between miR-675 and PTEN; Western blot was used to detect the relative expression level of PTEN protein.Results:The MTT assay results showed that the proliferation ability of U87-MG and U251 cells in the stable knockdown of H19 group was lower than that of the corresponding control group; and the differences in cell proliferation ability of all the groups after 48 h of culture were statistically significant (all P < 0.05). qRT-PCR detection results showed that the relative expression level of miR-675 in U251 cells in the stable knockdown of H19 group and the corresponding control group was 0.329±0.009 and 1.043±0.087, respectively, and the difference was statistically significant ( t = 14.15, P < 0.001); the relative expression level of miR-675 in U87-MG cells in the stable knockdown of H19 group and the corresponding control group was 0.299±0.009 and 1.027±0.106, respectively, and the difference was statistically significant ( t = 11.85, P < 0.001); the relative expression level of miR-675 in U87-MG and U251 cells in the stable knockdown of H19 group was lower than that of the corresponding control group. The dual luciferase reporter gene assay verified that miR-675 could bind to the 3'-UTR of PTEN. Western blot detection results showed that the relative expression level of PTEN protein in U87-MG and U251 cells in the stable knockdown of H19 group was higher than that of the corresponding control group and the blank group; in the U87-MG and U251 cells in the stable knockdown of H19 group, the relative expression level of PTEN in the overexpressing miR-675 group was lower than that of the corresponding blank group and the control group. In the U87-MG and U251 cells in the stable knockdown of H19 group, the cell proliferation ability of the overexpressing miR-675 group was higher than that of the corresponding blank group and the control group; the differences in cell proliferation ability of all the groups after 48 h of culture were statistically significant (all P < 0.05). Conclusions:lncRNA H19 may regulate the cell proliferation of glioma cells through the miR-675-PTEN signaling pathway.

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