1.Mechanism of Wogonin in Alleviating LPS-Induced Inflammation in BV-2 Cells and Protecting SH-SY5Y Cells
Mengfei SUN ; Jingfeng OUYANG ; Chunyang WU ; Jiaojiao CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(20):62-69
ObjectiveTo examine the protective mechanism of wogonin in SH-SY5Y cells cultured in the conditioned media with lipopolysaccharide (LPS)-induced BV-2 microglia. MethodBV-2 microglia were divided into the blank group, LPS group, low concentration group of wogonin (4 μmol∙L-1), medium concentration group of wogonin (8 μmol∙L-1), and high concentration group of wogonin (16 μmol∙L-1). The LPS group was given 1 mg·L-1 LPS, and the other three groups were treated with the corresponding concentration of wogonin for 4 h and then given 1 mg·L-1 LPS. The conditioned media from these groups were used to cultivate SH-SY5Y cells. Cell counting kit-8 (CCK-8) was used to assess the vitality of BV-2 cells in the above groups. The contents of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) in the supernatant of BV-2 cells were determined by enzyme-linked immunosorbent assay (ELISA). The expression of tyrosine hydroxylase (TH) and α-Synuclein (α-Syn) in SH-SY5Y cells was detected by immunohistochemical staining (IHC). The nuclear transfer and fluorescence expression intensity of nuclear transcription factor-κB p65 (NF-κB p65) protein in SH-SY5Y cells were detected by immunofluorescence staining (IF). Western blot was used to detect the expression of Toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/NF-κB pathway-related proteins in SH-SY5Y cells. ResultThe levels of IL-6 and TNF-α in the supernatant of BV-2 cells in the LPS group were significantly higher than those in the blank group (P<0.01). Compared with those in the LPS group, the IL-6 content of BV-2 cells in the low concentration group of wogonin was statistically significantly lower (P<0.05), whereas the IL-6 and TNF-α contents of the medium and high concentration groups of wogonin were statistically lower (P<0.05,P<0.01). The IL-6 and TNF-α contents in the high concentration group of wogonin decreased most significantly (P<0.01), and the intervention effect was the best. Compared with that in the blank group, the expression of α-Syn protein in SH-SY5Y cells cultured with conditioned media in the LPS group was significantly increased, and the expression of TH protein was significantly decreased (P<0.05). Compared with that in the LPS group, α-Syn protein expression in the medium and high concentration groups of wogonin showed a decreasing trend (P<0.05, P<0.01). TH protein expression was increased in the low, medium, and high concentration groups of wogonin (P<0.05, P<0.01). Compared with the blank group, NF-κB p65 protein gradually accumulated into the nucleus, and the fluorescence expression intensity was significantly enhanced (P<0.01). Compared with the LPS group, the NF-κB p65 protein was gradually dispersed outside the nucleus, and the fluorescence expression intensity was gradually weakened in all concentration groups of wogonin. The fluorescence intensity in the high concentration group of wogonin was significantly reduced (P<0.01). Compared with those in the blank group, the expression levels of TLR4 protein, phosphorylated(p)-NF-κB p65 protein, and MyD88 protein in the LPS group were significantly increased (P<0.05, P<0.01). Compared with those in the LPS group, the expressions of TLR4 protein, p-NF-κB p65 protein, and MyD88 protein in the medium concentration group of wogonin were all significantly decreased (P<0.05, P<0.01). The expressions of TLR4 protein, and MyD88 protein in the high concentration group of wogonin were significantly decreased (P<0.05, P<0.01). ConclusionWogonin may regulate the TLR4/MyD88/NF-κB signaling pathway to inhibit the release of LPS-induced inflammatory factors in BV-2 microglia and protect SH-SY5Y cells, thereby reducing inflammation and achieving neuroprotective effects.
2.Effects of heat waves on heat stroke in Shanghai, 2013—2023
Fei’er CHEN ; Chunyang DONG ; Jianghua ZHANG ; Hailei QIAN ; Zheng WU ; Yewen SHI ; Xiaodong SUN
Journal of Environmental and Occupational Medicine 2024;41(6):610-616
Background The substantial health damage attributed to heat waves, along with their increasing intensity and frequency in the context of global warming, highlights the importance of exploring the health effects of heat waves. Objective To calculate the excess heat stroke cases during heat waves in the summer of 2013—2023 in Shanghai, analyze the association between heat waves and heat stroke, and to further explore the modifying effects of heat wave characteristics on heat stroke. Methods Using a retrospective ecological study design, data on heat stroke cases were collected from the heat stroke case reporting system of the Chinese Center for Disease Control and Prevention, and concurrent meteorological data from Xujiahui Meteorological Station. A heat wave was defined as at least 3 consecutive days with daily maximum temperature meeting or exceeding 35 ℃ in this study, excess heat stroke cases related to heat waves were assessed as the difference between the numbers of heat stroke cases observed on a given day and the corresponding 31 d (15 d before and after that day) moving average, and statistical analyses using generalized linear model based on time series study were performed to assess the impact of heat waves on heat stroke. Results Overall 25 heat waves during the study period were observed, leading to a total of estimated 792.6 extra heat stroke cases. The risk of heat stroke significantly increased during heat waves (RR=2.60, 95%CI: 2.08, 3.26), but no statistically significant differences in heat wave effects were observed among different genders, ages, or regions. In terms of the timing of heat waves, the risk of heat stroke was highest during the first heat wave (RR=3.58, 95%CI: 2.82, 4.55), which was significantly higher than that during the second heat wave (RR=2.19, 95%CI: 1.66, 2.90), and no significant effect was observed during the third or subsequent heat waves. The impact of heat waves on heat stroke persisted for more than 4 d, with the risk higher on the fourth day and beyond (RR=2.95, 95%CI: 2.28, 3.83), significantly higher than on the first day of heat wave (RR=1.74, 95%CI: 1.18, 2.56). Conclusion Heat waves had a substantial effect on heat stroke in Shanghai from 2013 to 2023, and special attention need to be paid to heat waves with early onset and long duration.
3.Research progress on diabetes and human papilloma virus infection and vaccination
Wenjie MIN ; Chunyang GAO ; Lei FENG ; Huijie DENG ; Meng WU ; Yuean CAO ; Lichun ZOU ; Fangyun LIU
Journal of Public Health and Preventive Medicine 2024;35(1):125-128
Diabetes is a common chronic non-infectious disease. Diabetic patients not only suffer from metabolic disorders, but are also prone to immune deficiencies and are at a higher risk of being infected with human papillomavirus (HPV). Many studies at home and abroad have shown that the HPV infection rate of patients with diabetes is higher than that of non-diabetic patients. Patients with diabetes can benefit from HPV vaccination, and the tolerance is good. HPV vaccination is recommended for diabetic patients. This article reviews the research on diabetes, HPV infection, and HPV vaccine, which will provide references for HPV vaccination in diabetic patients.
4.A-485 alleviates tubular lipid accumulation by inhibiting H3K18ac/H3K27ac induced by P300/CBP in diabetic mice
Li MENG ; Yan ZHU ; Yan YANG ; Ting WU ; Yunzhuo REN ; Linshan DU ; Shijie ZENG ; Chunyang DU
Chinese Journal of Clinical and Experimental Pathology 2024;40(5):509-514
Purpose To investigate the protective effect and mechanism of A-485 on renal tubular injury in diabetic mice.Methods Eighteen male C57BL/6J mice were randomly divided into three groups:Control group,diabetic kidney dis-ease(DKD)group and A-485 treatment group.The DKD mice model was established by feeding high-fat diet for 8 weeks and intraperitoneal injection of streptozotocin for 5 days.Subsequent-ly,the A-485 treatment group was given A-485(10 mg/kg/day)by intraperitoneal injection every other day for 4 weeks.After treatment,the renal function,P300 enzyme activity and lipid deposition in renal tissue were measured.Western blot a-nalysis was performed to detect SREBP-1,FASN,ACC,ChREBP,P300,CBP,H3K18ac and H3K27ac protein levels.Results Compared with control mice,the levels of FBG,BUN,Scr and UAE were significantly increased in diabetic mice(FBG:2.52 times,BUN:2.89 times,Scr:2.13 times,UAE:4.21 times),while diabetic mice treatment with A-485 exhibi-ted a remarkable decrease on BUN,Scr and UAE(BUN:0.511 times,Scr:0.636 times,UAE:0.574 times,P<0.01).The results of the transmission electron microscopy and oil red O stai-ning showed that A-485 treatment prevents lipid droplets forma-tion and up-regulation of SREBP-1,FASN,ACC and ChREBP in renal tubular cells of diabetic mice(SREBP-1:0.544 times,FASN:0.449 times,ACC:0.306 times,ChREBP:0.317 times,P<0.01).Furthermore,A-485 intervention downregu-lated the enzyme activity of P300(0.546 times)and suppressed the expression of H3K18ac(0.337 times)and H3K27ac(0.308 times,P<0.01).Conclusion A-485 can significant-ly improve renal lipid metabolic disorder in diabetic mice,which may be achieved by inhibiting p300-induced H3K18ac and H3K27ac.
5.Molecular epidemiological characteristics of newly diagnosed HIV-1 cases in Fujian Province in 2020
Meirong XIE ; Liying LIN ; Zhenghua WANG ; Yuefeng QIU ; Xiaoli LU ; Chunyang ZHANG ; Shouli WU
Chinese Journal of Schistosomiasis Control 2023;35(6):583-589
Objective To investigate the HIV-1 genotype and distribution of newly diagnosed HIV-1 cases in Fujian Province in 2020, so as to provide insights into formulation of the precise AIDS control strategy in the province. Methods Newly diagnosed HIV-1 cases without antiretroviral therapy (excluding AIDS patients) were randomly sampled from each city of Fujian Province in 2020 at a proportion of 50% of the mean number of HIV-infected cases reported across 9 cities of Fujian Province during the past three years. Subjects’ demographic and epidemiological data were collected and blood samples were collected. The HIV-1 pol gene was amplified using nested reverse-transcription PCR assay, and the gene sequences were used for HIV-1 genotyping and phylogenetic analysis. The gene sequences were uploaded to the HIV Drug Resistance Database (http://hivdb.stanford.edu) for genotypic drug resistance assays, and the scores and level of HIV drug resistance were estimated using the HIVDB Algorithm version 9.5. Results A total of 1 043 newly diagnosed HIV-1 cases were reported in Fujian Province in 2020, and 936 gene sequences were successfully obtained following sequencing of blood samples. There were 9 HIV-1 genotypes characterized in blood samples from 936 newly diagnosed HIV-1 cases, with CRF07_BC (52.1%) and CRF01_AE (30.4%) as predominant subtypes, followed by CRF08_BC (4.9%), CRF55_01B (3.0%), subtype C (2.5%), subtype B (2.1%), CRF85_BC (1.7%), CRF59_01B (0.3%) and CRF65_CPX (0.1%), and unidentified subtypes were found in 26 blood samples. HIV-1 drug resistance was detected in 43 out of the 936 newly diagnosed HIV-1 cases, with 4.6% prevalence of HIV-1 drug resistance prior to therapy, and the highest drug resistance was found in the HIV CRF59_01B subtype, followed by in CRF08_BC, B, C, CRF01_AE, CRF07_BC and other subtypes, with a significant difference in the genotype-specific prevalence of HIV-1 drug resistance (χ2 = 45.002, P < 0.05). Conclusions There was a HIV-1 genotype diversity in Fujian Province in 2020, and emerging recombinant and drug-resistant HIV-1 strains were detected and spread across patients and regions. Monitoring of HIV-1 genotypes is recommended to be reinforced for timely understanding of the transmission and spread of novel recombinant and drug-resistant HIV-1 strains.
6.Construction and Validation of A Predictive Model Including TCM Pathogenic Syndrome for Short-term Efficacy of PD-1 Inhibitors in Advanced Non-small Cell Lung Cancer
Junyan MA ; Qiong WU ; Liang DONG ; Chunyang LI ; Zhiwu WANG
Cancer Research on Prevention and Treatment 2023;50(10):960-967
Objective To evaluate predictive factors affecting the short-term efficacy of PD-1 inhibitors in non-small cell lung cancer (NSCLC) and to construct a prediction model. Methods From October 2019 to November 2021, 221 patients with advanced NSCLC who met the inclusion criteria and were treated with PD-1 inhibitors were prospectively enrolled. Patients who were enrolled before May 1st, 2021 were included inthe modeling group (
7.Prediction Model of Treatment Effect of Anlotinib on Extensive-stage Small Cell Lung Cancer Based on Combination of Disease and Syndrome Information
Qiong WU ; Junyan MA ; Liang DONG ; Chunyang LI ; Zhiwu WANG
Cancer Research on Prevention and Treatment 2023;50(5):483-489
Objective To construct a nomogram prediction model for the treatment effect of anlotinib with the participation of traditional Chinese medicine syndrome elements on the patients with extensive-stage small cell lung cancer (ES-SCLC) who previously received multiple lines of chemotherapy. Methods The clinical data of 127 patients with ES-SCLC who received at least two cycles of anlotinib treatment were retrospectively studied. Kaplan-Meier method was used to analyze the relationship between each factor and the overall survival time. Cox regression analysis was applied to screen the independent influencing factors of the prognosis of patients with ES-SCLC. R language was employed to build a nomogram prediction model, C-index was used to evaluate the model, and calibration curve was adopted to verify the accuracy of the model. Results Age, PS score, brain metastases, qi deficiency syndrome, yin deficiency syndrome, and blood stasis syndrome were related risk factors for ES-SCLC treated with anlotinib. PS score, brain metastasis, and blood stasis syndrome were independent prognostic factors. On the basis of these three independent influencing factors, a nomogram model was established to predict the prognosis of patients with ES-SCLC treated with anlotinib. The predicted risk was close to the actual risk, showing a high degree of coincidence. Conclusion The nomogram model established with PS score, blood stasis syndrome elements, and brain metastasis as independent factors can predict the prognosis of patients with ES-SCLC receiving second- and third-line treatment of anlotinib.
8.Propensity score matching method evaluate the clinical efficacy of comprehensive treatment for synchronous pri-mary advanced gastric and esophageal cancer
Peichan ZHANG ; Chunyang LUO ; Wenya WU ; Zhenfeng WU ; Qinhong CAO ; Che CHEN ; Xiaoyu WU ; Xuequan YAO ; Fukun LIU
Journal of Surgery Concepts & Practice 2023;28(6):551-555
Objective To evaluate the clinical efficacy of comprehensive treatment for synchronous primary advanced gastric and esophageal cancer by propensity score matching(PSM).Methods A total of 2 551 patients with advanced gastric cancer admitted to Jiangsu Province Hospital of Chinese Medicine from January 2013 to December 2022 were retrospectively analyzed.Among them,45 patients with synchronous primary esophageal cancer were distributed to the observation group,and 2 506 patients without esophageal cancer were distributed to the control group.Through the PSM method,the control group was matched with the observation group and the equilibrium samples of covariates between two groups were obtained.The overall survival(OS)between the two groups were compared.Results Both observation and control group contained 45 patients in this study.According to the treatment regimen,the patients in the observation group was divided into radical resection treatment subgroup(n=22)and chemoradiotherapy(CRT)subgroup(n=23).In the radical resection subgroup,4 patients underwent the simultaneous surgical resection of gastric and esophageal tumors through proximal gastrectomy with the Ivor Lewis operation.Eighteen patients underwent endoscopic submucosal dissection(ESD)of their esophageal tumors and gastric cancer radical resection.Radical resection of gastric cancer combined with preoperative chemoradiotherapy of esophageal cancer was performed in the CRT subgroup.Survival analysis showed that OS in the observation group was significantly shorter than that in the control group(P=0.042)and there was no significant difference in OS between the radical resection subgroup and the control group(P=0.799).The 1-,3-,and 5-year survival rates of the patients in the CRT subgroup were significantly lower than those of the control group(P=0.003).While the 1-,3-,and 5-year survival rates of the patients in the radical resection subgroup were not statistically significant,compared to those of the CRT subgroup(P=0.071).Conclusions Multidisciplinary and comprehensive treatment can significantly improve the prognosis of patients with synchronous primary advanced gastric and esophageal cancer.Radical resection of gastric cancer combined with ESD of esophageal cancer is an optional treatment for patients with gastric cancer complicated with early esophageal cancer.Radical resection of gastric cancer combined with CRT of esophageal cancer can improve the prognosis of patients with advanced gastric cancer complicated with unresectable esophageal cancer.
9.A novel PI3K inhibitor XH30 suppresses orthotopic glioblastoma and brain metastasis in mice models.
Ming JI ; Dongjie WANG ; Songwen LIN ; Chunyang WANG ; Ling LI ; Zhihui ZHANG ; Jing JIN ; Deyu WU ; Yi DONG ; Heng XU ; Duo LU ; Xiaoguang CHEN
Acta Pharmaceutica Sinica B 2022;12(2):774-786
Glioblastoma is carcinogenesis of glial cells in central nervous system and has the highest incidence among primary brain tumors. Brain metastasis, such as breast cancer and lung cancer, also leads to high mortality. The available medicines are limited due to blood-brain barrier. Abnormal activation of phosphatidylinositol 3-kinases (PI3K) signaling pathway is prevalent in glioblastoma and metastatic tumors. Here, we characterized a 2-amino-4-methylquinazoline derivative XH30 as a potent PI3K inhibitor with excellent anti-tumor activity against human glioblastoma. XH30 significantly repressed the proliferation of various brain cancer cells and decreased the phosphorylation of key proteins of PI3K signaling pathway, induced cell cycle arrest in G1 phase as well. Additionally, XH30 inhibited the migration of glioma cells and blocked the activation of PI3K pathway by interleukin-17A (IL-17A), which increased the migration of U87MG. Oral administration of XH30 significantly suppressed the tumor growth in both subcutaneous and orthotopic tumor models. XH30 also repressed tumor growth in brain metastasis models of lung cancers. Moreover, XH30 reduced IL-17A and its receptor IL-17RA in vivo. These results indicate that XH30 might be a potential therapeutic drug candidate for glioblastoma migration and brain metastasis.
10.Epidemiological characteristics and influencing factor of non-occupational carbon monoxide poisoning during 2007—2018 in Shanghai
Fei’er CHEN ; Meizhu PAN ; Huihui XU ; Chunyang DONG ; Qing GU ; Qi’ang JIN ; Jianghua ZHANG ; Yewen SHI ; Hailei QIAN ; Chen WU
Journal of Environmental and Occupational Medicine 2022;39(8):878-882
Background Non-occupational carbon monoxide (CO) poisoning is a public health problem that seriously affect people’s health and lives. Objective To describe the prevalence of non-occupational CO poisoning during 2007—2018 in Shanghai, analyze its epidemiological characteristics and potential influencing factors, and explore effective prevention and control measures. Methods Daily reported non-occupational CO poisoning cases and meteorological factors from 2007 to 2018 were collected in Shanghai, epidemiological characteristics were analyzed by descriptive epidemiology methods, and a distributed lag nonlinear model was used to assess the association between temperature and non-occupational CO poisoning. Results A total of 2264 non-occupational CO poisoning events and 3866 cases from 2007 to 2018 were reported in Shanghai, including 59 death cases. More than half of the poisoning cases were female (56.3%), and young adults accounted for more cases than any other age group (54.8%). The poisoning events mainly occurred in winter (from December to next February); however, cases reported in summer increased in recent years. The peak period of the events was from 20:00 to 24:00. Households (85.2%) and restaurants (8.0%) were the common places of non-occupational CO poisoning events, and the main cause was improper use of gas water heater (36.9%). A nonlinear curve was found between daily average temperature of current day and the occurrence of non-occupational CO poisoning. Temperature was negatively associated with the risk of non-occupational CO poisoning when the temperature was lower than 9.6 ℃, while a positive association was found during 9.7-26.0 ℃. Conclusion Winter is a high season for non-occupational CO poisoning in Shanghai, rising cases reported in summer is also worthy of attention. Supervision should be strengthened to ban sales of unqualified gas water heaters, and health education on CO poisoning prevention and control should be conducted through multiple channels, in order to reduce the incidence of CO poisoning.


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