1.Research on cardiometabolic risk factors of workers in new forms of employment
Siyuan WANG ; Xiaoshun WANG ; Rui GUAN ; Hong YU ; Xin SONG ; Binshuo HU ; Zhihui WANG ; Xiaowen DING ; Dongsheng NIU ; Tenglong YAN ; Huadong XU
China Occupational Medicine 2025;52(2):150-154
Objective To analyze the prevalence status of cardiometabolic risk factor (CMRF) and its aggregation among workers engaged in new forms of employment. Methods A total of 5 429 new employment workers (including couriers, online food delivery workers, and ride hailing drivers) who underwent health medical examinations at a tertiary hospital in Beijing City were selected as the research subjects using the judgment sampling method. Data on waist circumference, blood pressure, blood glucose, and blood lipid levels were collected to analyze their CMRF [central obesity, elevated blood pressure, elevated blood glucose, elevated triglycerides, and reduced high-density lipoprotein cholesterol (HDL-C)] and their aggregation (with ≥ 2 of the above 5 risk factors) status. Results The detection rates of central obesity, elevated blood pressure, elevated blood glucose, elevated triglycerides, and reduced HDL-C were 61.2%, 38.2%, 29.5%, 40.9% and 22.6%, respectively. The detection rates of CMRF aggregation was 57.8%. The result of multivariable logistic regression analysis showed that male, age ≥45 years, smoking, overweight, and obesity were risk factors for CMRF aggregation (all P<0.05). Conclusion The detection rate of CMRF and its aggregation among workers with new forms of employment in Beijing City is relatively high. Targeted prevention and control efforts should be strengthened for high-risk populations, especially males, workers aged ≥45 years, smokers, and those who are overweight or obese.
2.Mechanism of HMGB1 in scarring after glaucoma drainage valve implantation
Siyuan LIU ; Fan CAO ; Jingjing DING ; Chuanxi WANG ; Biqing DING ; Kun LIANG ; Zhengxuan JIANG ; Ning BAO
International Eye Science 2024;24(1):18-23
AIM: To explore the dynamic expression of high mobility group box 1(HMGB1)in scar tissues after glaucoma drainage valve implantation, and to further reveal the role and possible mechanism of HMGB1 in scarring after glaucoma surgery.METHODS: A total of 60 New Zealand white rabbits were randomly divided into control group(n=20), model group(n=20, silicone implantation under conjunctival sac)and model with drug administration group(n=20, silicone implantation under conjunctival sac combined with 5-fluorouracil injection). The conjunctival tissues were collected at 4 and 8 wk after surgery. HE staining and Masson staining were used to detect the proliferation and distribution of fibroblasts and collagen fibers in conjunctival tissues. Immunohistochemistry was utilized to detect the distribution and changes of HMGB1, transforming growth factor(TGF)-β1, Smad3 and α-smooth muscle actin(SMA)in conjunctival tissues. RT-PCR and Western blot were adopted to detect the mRNA and protein expression of HMGB1, TGF-β1, Smad3 and α-SMA in conjunctival tissues.RESULTS: HE staining and Masson staining showed that the proliferation of inflammatory cells, fibroblasts and collagen fibers in the model group was significantly higher than that in the control group at both 4 and 8 wk. Meanwhile, the proliferation of fibroblasts and collagen fibers in the model with drug administration group was significantly lower than that in the model group. Immunohistochemical staining showed that the expression of HMGB1, TGF-β1, Smad3 and α-SMA protein was observed in the conjunctival tissues of the model group both 4 and 8 wk, with brown and significantly deeper staining of the model group at 8 wk. Meanwhile, the positive staining in the model with drug administration group at both 4 and 8 wk was significantly lower than that in the model group. There was positive correlations between the number of fibroblasts stained with HE and the expression of HMGB1 in the conjunctival tissue of the model group at both 4 and 8 wk(r=0.602, 0.703, all P<0.05). RT-PCR and Western blot revealed that the mRNA and protein expression levels of HMGB1, TGF-β1, Smad3 and α-SMA in the model group were significantly higher than those in the control group at both 4 and 8 wk(all P<0.05). Meanwhile, the mRNA and protein expression levels of HMGB1, TGF-β1, Smad3 and α-SMA in the model with drug administration group were significantly lower than those in the model group(all P<0.05). There was positive correlations between mRNA expressions of HMGB1 and TGF-β1, Smad3 in the model group and the model with drug administration group(all P<0.05).CONCLUSION: The expression of HMGB1 increased at a time-dependent manner after glaucoma valve implantation. HMGB1 acts an indispensable role in the initiation and progression of scar formation after glaucoma surgery, which may be involved in the regulation of TGF-β/Smad signaling pathway.
3.Summary of evidence to facilitate the implementation of advance care planning among advanced cancer patients
Minghui TAN ; Siyuan TANG ; Chongmei HUANG ; Jinnan XIAO ; Jinfeng DING
Journal of Central South University(Medical Sciences) 2024;49(1):135-144
Advance care planning(ACP)is designed to ensure that patients lacking autonomous decision-making capacity receive medical services in accordance with their expectations and preferences.Individuals with advanced cancer are a crucial target for ACP implementation.However,the current practice of ACP in this group in China is suboptimal,demanding high-quality implementation evidence to strengthen ACP in the clinical practice of patients with advanced cancer.The existing literature can be summarized into 27 pieces of evidence across 7 dimensions,including initiation time,intervention content,intervention providers,intervention modalities,communication skills,outcome indicators,and environmental support.The aforementioned evidence could provide crucial support for improving ACP implementation for patients with advanced cancer.Subsequent research efforts should integrate patient preferences and explore the most suitable implementation strategies for ACP in the Chinese population with advanced cancer,considering diverse aspects such as traditional culture,ACP education and training,legislative support,and healthcare system refinement.
4.Discussion on the Scientific Connotation of Fortifying Spleen, Resolving Phlegm and Dispelling Stasis in the Treatment of Coronary Heart Disease under the Guidance of Dysfunctional High-Density Lipoprotein
Lianqun JIA ; Qige WANG ; Guoyuan SUI ; Nan SONG ; Huimin CAO ; Liang KONG ; Meijun LV ; Yuan CAO ; Ning YU ; Siyuan DING ; Guanlin YANG
Journal of Traditional Chinese Medicine 2024;65(2):128-133
The key pathogenesis of coronary heart disease (CHD) is spleen deficiency and phlegm stasis, and dysfunctional high-density lipoprotein (dys-HDL) may be the biological basis for the occurrence of CHD due to spleen deficiency and phlegm stasis. Considering the biological properties and effects of high-density lipoprotein (HDL), it is believed that the structure and components of HDL are abnormal in the state of spleen deficiency which led to dys-HDL; and dys-HDL contributes to the formation of atherosclerotic plaques through two major pathways, namely, mediating the dysfunction of endothelial cells and mediating the foaminess of macrophages and smooth muscle cells, thus triggering the development of CHD. It is also believed that dys-HDL is a microcosmic manifestation and a pathological product of spleen deficiency, and spleen deficiency makes foundation for the production of dys-HDL; dys-HDL is also an important biological basis for the phlegm-stasis interactions in CHD. The method of fortifying spleen, resolving phlegm, and dispelling stasis, is proposed as an important principle in the treatment of CHD by traditional Chinese medicine, which can achieve the therapeutic purpose by affecting the changes in the structure and components of dys-HDL, thus revealing the scientific connotation of this method, and providing ideas for the diagnosis and treatment of CHD by traditional Chinese medicine.
5.The value of CT radiomics of the primary gastric cancer and the adipose tissue outside the gastric wall beside cancer in evaluating T staging of gastric cancer
Zhixuan WANG ; Xiaoxiao WANG ; Chao LU ; Siyuan LU ; Yi DING ; Donggang PAN ; Yueyuan ZHOU ; Jun YAO ; Jiulou ZHANG ; Pengcheng JIANG ; Xiuhong SHAN
Chinese Journal of Radiology 2024;58(1):57-63
Objective:To investigate the value of CT radiomic model based on analysis of primary gastric cancer and the adipose tissue outside the gastric wall beside cancer in differentiating stage T1-2 from stage T3-4 gastric cancer.Methods:This study was a case-control study. Totally 465 patients with gastric cancer treated in Affiliated People′s Hospital of Jiangsu University from December 2011 to December 2019 were retrospectively collected. According to postoperative pathology, they were divided into 2 groups, one with 150 cases of T1-2 tumors and another with 315 cases of T3-4 tumors. The cases were divided into a training set (326 cases) and a test set (139 cases) by stratified sampling method at 7∶3. There were 104 cases of T1-2 stage and 222 cases of T3-4 stage in the training set, 46 cases of T1-2 stage and 93 cases of T3-4 stage in the test set. The axial CT images in the venous phase during one week before surgery were selected to delineate the region of interest (ROI) at the primary lesion and the extramural gastric adipose tissue adjacent to the cancer areas. The radiomic features of the ROIs were extracted by Pyradiomics software. The least absolute shrinkage and selection operator was used to screen features related to T stage to establish the radiomic models of primary gastric cancer and the adipose tissue outside the gastric wall beside cancer. Independent sample t test or χ2 test were used to compare the differences in clinical features between T1-2 and T3-4 patients in the training set, and the features with statistical significance were combined to establish a clinical model. Two radiomic signatures and clinical features were combined to construct a clinical-radiomics model and generate a nomogram. The area under the receiver operating characteristic curve (AUC) was used to evaluate the efficacy of each model in differentiating stage T1-2 from stage T3-4 gastric cancer. The calibration curve was used to evaluate the consistency between the T stage predicted by the nomogram and the actual T stage of gastric cancer. And the decision curve analysis was used to evaluate the clinical net benefit of treatment guided by the nomogram and by the clinical model. Results:There were significant differences in CT-T stage and CT-N stage between T1-2 and T3-4 patients in the training set ( χ2=10.59, 15.92, P=0.014, 0.001) and the clinical model was established. After screening and dimensionality reduction, the 5 features from primary gastric cancer and the 6 features from the adipose tissue outside the gastric wall beside cancer established the radiomic models respectively. In the training set and the test set, the AUC values of the primary gastric cancer radiomic model were 0.864 (95% CI 0.820-0.908) and 0.836 (95% CI 0.762-0.910), and the adipose tissue outside the gastric wall beside cancer radiomic model were 0.782 (95% CI 0.731-0.833) and 0.784 (95% CI 0.702-0.866). The AUC values of the clinical model were 0.761 (95% CI 0.705-0.817) and 0.758 (95% CI 0.671-0.845), and the nomogram were 0.876 (95% CI 0.835-0.917) and 0.851 (95% CI 0.781-0.921). The calibration curve reflected that there was a high consistency between the T stage predicted by the nomogram and the actual T stage in the training set ( χ2=1.70, P=0.989). And the decision curve showed that at the risk threshold 0.01-0.74, a higher clinical net benefit could be obtained by using a nomogram to guide treatment. Conclusions:The CT radiomics features of primary gastric cancer lesions and the adipose tissue outside the gastric wall beside cancer can effectively distinguish T1-2 from T3-4 gastric cancer, and the combination of CT radiomic features and clinical features can further improve the prediction accuracy.
6.Protective effect of Qideng Mingmu capsule on retinal vessels in mice with oxygen-induced retinopathy
Chunmeng LIU ; Shan DING ; Xuewen DONG ; Dandan ZHAO ; Siyuan PU ; Li PEI ; Fuwen ZHANG
Chinese Journal of Experimental Ophthalmology 2024;42(5):428-435
Objective:To investigate the effect of Qideng Mingmu capsule on the formation and remodeling of retinal neovascularization in mice with oxygen-induced retinopathy (OIR).Methods:Thirty-six postnatal day 7 (P7)SPF grade C57BL/6J pups were divided into normal group, OIR group, Qideng Mingmu capsule group and apatinib group by random number table method, with 9 mice in each group.The mice in the normal group were raised in normal environment.The mice in the other three groups were fed in hyperoxic environment of (75±2)% oxygen concentration for 5 days from P7 to P12 and then were fed in normal environment for 5 days from P12 to P17 to establish the OIR model.From P12, mice in Qideng Mingmu capsule group and apatinib group were given intragastric administration of Qideng Mingmu capsule (900 mg/kg) and vascular endothelial growth factor receptor 2 inhibitor apatinib (70 mg/kg) respectively, once a day for 5 consecutive days.On P17, paraffin sections of mouse eyeballs were made and stained with hematoxylin-eosin to count the number of vascular endothelial cells that broke through the internal limiting membrane.The retinal slices were prepared and stained with FITC-dextran to quantify the retinal non-perfusion area, neovascularization density and total vascular density.The distribution and fluorescence intensity of retinal vascular endothelial cell marker CD31 and pericyte marker α-smooth muscle actin (α-SMA) were observed by double immunofluorescence staining.Immunohistochemical staining was used to detect the expression and distribution of retinal hypoxia inducible factor-1α (HIF-1α) and vascular endothelial cadherin (VE-cadherin).The use and care of animals were in accordance with the Regulations on the Management of Laboratory Animals issued by the Ministry of Science and Technology.This study was approved by the Animal Ethics Committee of Chengdu University of Traditional Chinese Medicine (No.2019-30).Results:The number of vascular endothelial cells breaking through the internal limiting membrane in normal group, OIR group, Qideng Mingmu capsule group and apatinib group were (2.83±4.40), (37.33±5.43), (23.83±6.79) and (14.00±9.34), respectively, with a statistically significant overall difference ( F=28.313, P<0.001).There were more vascular endothelial cells breaking through internal limiting membrane in OIR group than in normal group, Qideng Mingmu capsule group and apatinib group, showing statistically significant differences (all at P<0.05).In the observation of mouse retinal slices, there were large non-perfusion areas, neovascularization buds and disordered distribution of blood vessels in OIR group.The distribution of blood vessels was more uniform and the areas of non-perfusion and neovascularization were smaller in Qideng Mingmu capsule group and apatinib group than in OIR group.The relative area of central retinal non-perfusion area and neovascularization density were significantly lower in normal group, Qideng Mingmu capsule group and apatinib group than in OIR group (all at P<0.05).The immunofluorescence intensity of CD31 and the absorbance value of HIF-1α were significantly lower, and the immunofluorescence intensity of α-SMA and the absorbance value of VE-cadherin were significantly higher in normal group, Qideng Mingmu capsule group and apatinib group than in OIR group (all at P<0.05). Conclusions:Qideng Mingmu capsule can inhibit retinal neovascularization formation, increase vascular pericyte coverage, relieve retinal hypoxia and increase vascular integrity in OIR mice.It can protect the retinal vessels of OIR mice.
7.Curcumin promotes HeLa cell apoptosis by inhibiting expression of acetyl-transferase P300
Xingyu ZHAO ; Siyuan DING ; Qi HE ; Wei ZHANG
Chinese Journal of Pathophysiology 2024;40(7):1197-1204
AIM:To investigate the effect of curcumin on the viability and apoptosis of human papillomavirus(HPV)-positive cervical cancer cells via down-regulating the expression of adenovirus E1A-associated 300 kD protein(P300).METHODS:HeLa cells in logarithmic phase were divided into four experimental groups(20,40,60 and 80 μmol/L Cur treatment groups),and the untreated group was used as control.Cell apoptosis was detected by flow cytome-try,and the expression of E6 gene was detected by RT-qPCR and Western blot.Silencing plasmid(shE6)and negative control shRNA(shNC)were constructed and transfected into HeLa cells,the cells were randomly divided into four groups including shNC,shNC+Cur(40 μmol/L),shE6 and shE6+Cur(40 μmol/L).The cell viability,apoptosis and expression of apoptosis-related proteins were detected by CCK-8,flow cytometry and Western blot,respectively.Then silencing plas-mid(siP300)and negative control siRNA(siNC)were constructed and transfected into HeLa cells.The mRNA and pro-tein expression of P300 was detected by RT-qPCR and Western blot.The protein expression of E6 and P300 and histone was detected by Western blot after treated with 20 and 40 μmol/L curcumin.RESULTS:Compared with the untreated group,the HeLa cells treated with different concentrations of curcumin could significantly inhibit the viability and increase the early apoptosis rate(P<0.05).The results showed that the mRNA and protein expression of E6 were down-regulated in HeLa cells after treated with different concentration curcumin,while the early apoptosis and the expression of pro-apop-tosis-related proteins in the shE6 group were lower than those in the non-knockdown group after treated with 40 μmol/L cur-cumin(P<0.05).And the expression of E6 protein was decreased after knockdown of P300,while the expression of P300 and histone was down-regulated after treatment with 20 and 40 μmol/L curcumin.CONCLUSION:Curcumin can inhibit the viability and promote the apoptosis of HPV18 positive cervical cancer cells,and the mechanism may be that it can in-hibit E6 acetylation by down-regulating P300 expression.
8.Exploraion of the Pathogenesis Evolution and Treatment Rules of Obese Type 2 Diabetes Mellitus Based on the Theory of"Deficient Qi Leads to Stagnation"
Qige WANG ; Siyuan DING ; Libin ZHAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(8):2089-2094
Based on the theory of"deficient Qi leads to stagnation",this paper discusses the pathogenesis evolution and treatment of obese type 2 diabetes.The occurrence and development of obese type 2 diabetes mellitus has obvious stages,which often begins with spleen deficiency obesity,changes in qi full spleen dan,becomes dry retention diabetes,and appears toxic stagnation syndrome.According to the stage development characteristics of the pathogenesis,it can be summarized as"deficiency","Qi","retention"and"stagnation",which is in line with the overall theoretical connotation of"deficient Qi leads to stagnation".On this basis,according to the different periods of the disease,the treatment methods of"warm medicine treatment","orchid grass treatment","Yiyin treatment"and"Gongbu treatment"were summarized,which provided reference for guiding the accurate syndrome differentiation and treatment of obese type 2 diabetes in clinical practice.
9.Vitamin D receptor (VDR) mediates the quiescence of activated hepatic stellate cells (aHSCs) by regulating M2 macrophage exosomal smooth muscle cell-associated protein 5 (SMAP-5).
Xuwentai LIU ; Yue WU ; Yanyi LI ; Kaiming LI ; Siyuan HOU ; Ming DING ; Jingmin TAN ; Zijing ZHU ; Yingqi TANG ; Yuming LIU ; Qianhui SUN ; Cong WANG ; Can ZHANG
Journal of Zhejiang University. Science. B 2023;24(3):248-261
An effective therapeutic regimen for hepatic fibrosis requires a deep understanding of the pathogenesis mechanism. Hepatic fibrosis is characterized by activated hepatic stellate cells (aHSCs) with an excessive production of extracellular matrix. Although promoted activation of HSCs by M2 macrophages has been demonstrated, the molecular mechanism involved remains ambiguous. Herein, we propose that the vitamin D receptor (VDR) involved in macrophage polarization may regulate the communication between macrophages and HSCs by changing the functions of exosomes. We confirm that activating the VDR can inhibit the effect of M2 macrophages on HSC activation. The exosomes derived from M2 macrophages can promote HSC activation, while stimulating VDR alters the protein profiles and reverses their roles in M2 macrophage exosomes. Smooth muscle cell-associated protein 5 (SMAP-5) was found to be the key effector protein in promoting HSC activation by regulating autophagy flux. Building on these results, we show that a combined treatment of a VDR agonist and a macrophage-targeted exosomal secretion inhibitor achieves an excellent anti-hepatic fibrosis effect. In this study, we aim to elucidate the association between VDR and macrophages in HSC activation. The results contribute to our understanding of the pathogenesis mechanism of hepatic fibrosis, and provide potential therapeutic targets for its treatment.
Humans
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Hepatic Stellate Cells/pathology*
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Receptors, Calcitriol
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Liver Cirrhosis/pathology*
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Macrophages/metabolism*
10.Open surgery in the treatment of patients with hilar cholangiocarcinoma: a study on curative efficacy and prognostic factors
Mengkui HAN ; Ping LI ; Mingmin ZHANG ; Wei HUANG ; Siyuan CHANG ; Jin LI ; Ding SUN ; Lei QIN ; Xiaohua YANG
Chinese Journal of Hepatobiliary Surgery 2022;28(11):831-837
Objective:To study the efficacy of different surgical methods in treatment of hilar cholangiocarcinoma (HCCA), and to analyze the factors affecting long-term prognosis of HCCA patients after surgical treatment.Methods:The clinical data of 105 patients who underwent surgical treatment for HCCA at the First Affiliated Hospital of Soochow University from April 2010 to October 2021 were retrospectively analysed. There were 58 males and 47 females, with age (64.2±10.6) years old. Data analysed included surgical treatments, postoperative pathological data, perioperative complications and survival on follow-up. The Kaplan Meier survival curve was plotted, and the log-rank test and Cox proportional hazard model were performed to analyze the key factors affecting long-term prognosis.Results:Of 105 patients, 4 (3.8%) patients died during the perioperative period, and 58 patients (55.2%) developed complications with included 32 (30.5%) patients with pleural effusion and 12 (11.4%) patients with biliary leakage. The follow-up data was available in 85 patients with the overall median survival time of 19 months, and the 1-, 3-, 5-year cumulative survival rates of 58.1%, 27.0% and 24.8% respectively. The 1-, 3-, and 5-year cumulative survival rates for the R 0 resection patients ( n=59) were 69.4%, 36.2%, 27.4%, respectively, which were significantly better than 49.4%, 12.3%, 0% for the R 1/2 resection patients ( n=20), and 0% for the palliative drainage patients ( n=6) (all P<0.05). Univariate analysis and Cox multivariate analysis showed that age ≥70 years ( HR=2.158, 95% CI: 1.175-3.965), preoperative CA19-9 level ≥1 015 U/ml ( HR=1.981, 95% CI: 1.009-3.894), resection margin ( HR=2.587, 95% CI: 1.371-4.881), and lymph node metastasis ( HR=2.308, 95% CI: 1.167-4.567) were independent risk factors for long-term prognosis of HCCA patients (all P<0.05). Conclusions:R 0 resection was an effective way to prolong survival of patients with HCCA. Age, preoperative CA19-9 level, resection margin and lymph node metastasis were related to long-term survival of HCCA patients.

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