1.Effects of resveratrol on cGAS-STING signaling pathway in fibroblast-like synoviocytes of patients with rheumatoid arthritis
Taorong Wang ; Yubao Shao ; Nannan Liu ; Wenhao Li ; Meng Li ; Xiaoyu Chen
Acta Universitatis Medicinalis Anhui 2025;60(1):73-78
Objective :
To investigate the effects of resveratrol(Res) on fibroblast-like synoviocytes(FLS) in patients with rheumatoid arthritis(RA), and to explore the possible mechanism of Res inhibiting the release of inflammatory factors from FLS.
Methods :
FLS from RA patients were culturedin vitroand treated with different concentrations of Res(0, 20, 40, 80, 160, 320 μmol/L). The viability of FLS cells was detected by CCK-8 assay after 12 and 24 h. The contents of inflammatory factor interleukin-6(IL-6) and tumor necrosis factor-α(TNF-α) in cell supernatant were detected by ELISA. The expression levels of cyclic guanosine monophosphate-adenosine monophosphate synthase(cGAS) and stimulator of interferon gene(STING) were measured by Western blot; After lentivirus infection with FLS caused the cells to overexpress cGAS, the cells were divided into Control group(blank control), cGAS group(cGAS overexpression), Res+cGAS group(Res 160 μmol/L+cGAS overexpression) and Res group(Res 160 μmol/L). The expression level of STING protein in cells of each group was determined by Western blot, the viability of FLS cells in each group was detected by CCK-8, and the contents of inflammatory factor IL-6 and TNF-α in the supernatant of cells of each group were detected by ELISA method.
Results :
The results of CCK-8 experiment showed that under 40, 80, 160 μmol/L Res treatment, FLS viability decreased significantly after 24 h compared with blank control group(P<0.01). ELISA results showed that the contents of IL-6 and TNF-α in cell supernatant were also significantly decreased after treatment with Res of 40, 80 and 160 μmol/L(P<0.01). Meanwhile, Western blot results showed that Res could significantly decrease the protein expression levels of STING and cGAS in FLS cells after treatment of 40, 80 and 160 μmol/L(P<0.05,P<0.01). Compared with the Control group, the expression level of STING protein in FLS increased after overexpression of cGAS(P<0.05); compared with the Res group, the content of inflammatory factors in the supernatant of FLS and the expression level of STING protein in FLS significantly increased after overexpression of cGAS(P<0.01,P<0.05).
Conclusion
The appropriate concentration of Res can inhibit the release of inflammatory cytokines in FLS cells, which may be related to the blocking of cGAS-STING signaling pathway.
2.Application value of blue-on-yellow perimetry combined with detection of macular ganglion cells inner plexiform layer in early diagnosis of open angle glaucoma
Leilei LIN ; Yu CHEN ; Nannan DONG
International Eye Science 2025;25(4):544-550
AIM: To analyze the value of blue-on-yellow perimetry(B/Y)combined with macular ganglion cells inner plexiform layer(GCIPL)detection in the early diagnosis of open angle glaucoma.METHODS: A prospective case-control study was conducted to collect 100 patients(174 eyes)from May 2023 to May 2024 in Eye Hospital of Wenzhou Medical University as the case group, and 20 healthy volunteers(40 eyes)as the control group. The case group was divided into high intraocular pressure group, suspected glaucoma group, and early glaucoma group based on the examination results. All study subjects underwent comprehensive ophthalmic examination, white-on-white perimetry(W/W)and B/Y examination, and swept source optical coherence tomography(SS-OCT)was used to scan the optic disc and macula to obtain relevant parameters. The value of B/Y combined with macular GCIPL in the diagnosis of open angle glaucoma was analyzed.RESULTS: In the case group, 30 cases(52 eyes)were diagnosed with early primary open angle glaucoma, 46 cases(82 eyes)were suspected of open angle glaucoma, and 24 cases(40 eyes)were diagnosed with high intraocular pressure. The W/W mean defect(MD)and B/Y-MD values in the early glaucoma group were lower than those in the control group, high intraocular pressure group, and suspected glaucoma group. The W/W pattern standard deviation(PSD)and B/Y-PSD values were higher than those in the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The W/W-MD and B/Y-MD values in the suspected glaucoma group were lower than those in the control group and the high intraocular pressure group(all P<0.05). The B/Y-MD values in the high intraocular pressure group were lower than those in the control group(P<0.05). The parameters of GCIPL in the macular area of the early glaucoma group were lower than those of the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The minimum GCIPL in the macular area of the suspected glaucoma group, as well as the upper and lower temporal areas, were lower than those of the control group and the high intraocular pressure group(all P<0.05). The average, upper, lower, temporal, 5:00, 6:00, and 12:00 positions of the retinal nerve fiber layer(RNFL)parameters around the optic disc in the early glaucoma group were lower than those in the control group, high intraocular pressure group, and suspected glaucoma group(all P<0.05). The average and upper RNFL parameters in the suspected glaucoma group were lower than those in the control group and high intraocular pressure group. The rim area of the optic nerve head(ONH)parameters in the early glaucoma group was smaller than that in the control group, high intraocular pressure group, and suspected glaucoma group, while the horizontal and vertical cup-to-disc ratio was higher than those in the control group, high intraocular pressure group, and suspected glaucoma group; the rim area of the suspected glaucoma group was smaller than that of the control group and high intraocular pressure group, and the horizontal and vertical cup-to-disc ratio were higher than those of the control group and high intraocular pressure group(all P<0.05). Receiver operating characteristic(ROC)curve was drawn, and the results showed that visual field parameters, macular GCIPL parameters, and RNFL parameters had certain diagnosibility for early open angle glaucoma and suspected glaucoma. Decision curve was drawn, and the results showed that when the threshold was between 0 and 1.0, the net return rate of diagnosing early open angle glaucoma with the combination of B/Y and macular GCIPL parameters was higher than the individual diagnostic efficacy of each indicator.CONCLUSION: The combination of B/Y and macular GCIPL detection can be an important means for the early diagnosis of glaucoma.
3.Changes of retinal structure and function before and after panretinal photocoagulation in patients with proliferative diabetic retinopathy
Nannan DONG ; Liqing WEI ; Yu CHEN ; Jiapeng WANG ; Leilei LIN
International Eye Science 2025;25(5):718-724
AIM: To analyze the changes of retinal structure and function before and after panretinal photocoagulation(PRP)in patients with proliferative diabetic retinopathy(PDR).METHODS: Prospective study. Totally 98 cases(98 eyes)of PDR patients who underwent PRP in Eye Hospital of Wenzhou Medical University from January 2022 to May 2023 were included. Optical coherence tomography angiography(OCTA)was used to detect central retinal thickness(CRT), central macular thickness(CMT), subfoveal choroidal thickness(SFCT), foveal avascular zone(FAZ), deep vascular complex(DVC)blood flow density, superficial vascular complex(SVC)blood flow density before and at 1 wk, 1 and 3 mo after PRP. During the follow-up, 1 eye underwent vitrectomy, 2 eyes were lost to follow-up, and finally 95 eyes completed 1 a follow-up, with a loss rate of 3%. According to the visual prognosis at 1 a after treatment, the patients were divided into two groups: 73 eyes in good prognosis group and 22 eyes in poor prognosis group(including 9 eyes of visual disability and 13 eyes of visual regression). The changes in retinal structure and function before and after PRP treatment were compared between the two groups of patients, and the receiver operating characteristic(ROC)curve and decision curve were used to analyze the predictive value of retinal structure and function for PDR treatment.RESULTS: There were statistical significant differences in PDR staging, CRT, CMT, SFCT, DVC blood flow density, and SVC blood flow density between the two groups of patients before treatment(all P<0.05). At 1 wk, 1 and 3 mo after treatment, the FAZ area of both groups decreased compared to before treatment, while the blood flow density of DVC and SVC increased compared to before treatment(both P<0.05). However, there was no significant difference in the blood flow density of FAZ, DVC, and SVC between the two groups at 1 wk, 1 and 3 mo after treatment(all P>0.05). The CRT, CMT and SFCT of the two groups at 1 wk after treatment were higher than those before treatment(all P<0.05), but there were no significant differences between the two groups(all P>0.05). The CRT, CMT and SFCT at 1 and 3 mo after treatment were lower than those at 1 wk after treatment and before treatment in both groups. The CRT, CMT and SFCT in the poor prognosis group at 3 mo after treatment were higher than those at 1 mo after treatment, and were higher than those in the good prognosis group(all P<0.05). ROC analysis showed that, at 3 mo after laser treatment in PDR patients, the area under the curve of the CRT, CMT, and SFCT alone or in combination after treatment for 1 a was 0.788, 0.781, 0.783, and 0.902, respectively, and the combined prediction value was better(P<0.05). Decision curve analysis showed that the combined detection of CRT, CMT, and SFCT in PDR patients at 3 mo after treatment can improve the predictive value of visual prognosis.CONCLUSION: The optimal time for retinal structure and function recovery in PDR patients after PRP treatment is between 1 wk and 1 mo. OCTA measurement of CRT, CMT, and SFCT at 3 mo after treatment can predict the visual prognosis during the 1 a treatment period.
4.Preliminary exploration of differentiating and treating multiple system atrophy from the perspective of the eight extraordinary meridians
Di ZHAO ; Zhigang CHEN ; Nannan LI ; Lu CHEN ; Yao WANG ; Jing XUE ; Xinning ZHANG ; Chengru JIA ; Xuan XU ; Kaige ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):392-397
Multiple system atrophy (MSA) is a rare neurodegenerative disease with complex clinical manifestations, presenting substantial challenges in clinical diagnosis and treatment. Its symptoms and the eight extraordinary meridians are potentially correlated; therefore, this article explores the association between MSA symptom clusters and the eight extraordinary meridians based on their circulation and physiological functions, as well as their treatment strategies. The progression from deficiency to damage in the eight extraordinary meridians aligns with the core pathogenesis of MSA, which is characterized by "the continuous accumulation of impacts from the vital qi deficiency leading to eventual damage". Liver and kidney deficiency and the emptiness of the eight extraordinary meridians are required for the onset of MSA; the stagnation of qi deficiency and the gradual damage to the eight extraordinary meridians are the key stages in the prolonged progression of MSA. The disease often begins with the involvement of the yin and yang qiao mai, governor vessel, thoroughfare vessel, and conception vessel before progressing to multiple meridian involvements, ultimately affecting all eight extraordinary meridians simultaneously. The treatment approach emphasizes that "the direct method may be used for joining battle, but indirect method will be needed in order to secure victory" and focuses on "eliminate pathogenic factors and reinforce healthy qi". Distinguishing the extraordinary meridians and focusing on the primary symptoms are pivotal to improving efficacy. Clinical treatment is aimed at the target, and tailored treatment based on careful clinical observation ensures precision in targeting the disease using the eight extraordinary meridians as the framework and core symptoms as the specific focus. Additionally, combining acupuncture, daoyin therapy, and other method may help prolong survival. This article classifies clinical manifestations based on the theory of the eight extraordinary meridians and explores treatment.
5.Effectiveness of the integrated schistosomiasis control programme in Sichuan Province from 2015 to 2023
Chen PU ; Yu ZHANG ; Jiajia WAN ; Nannan WANG ; Jingye SHANG ; Liang XU ; Ling CHEN ; Lin CHEN ; Zisong WU ; Bo ZHONG ; Yang LIU
Chinese Journal of Schistosomiasis Control 2025;37(3):284-288
Objective To investigate the effectiveness of the integrated schistosomiasis control programme in Sichuan Province during the stage moving from transmission interruption to elimination (2015—2023), so as to provide insights into formulation of the schistosomiasis control measures during the post-elimination stage. Methods Schistosomiasis control data were retrospectively collected from departments of health, agriculture and rural affairs, forestry and grassland, water resources, and natural resources in Sichuan Province from 2015 to 2023, and a database was created to document examinations and treatments of human and livestock schistosomiasis, and snail survey and control, conversion of paddy fields to dry fields, ditch hardening, rivers and lakes management and building of forests for snail control and schistosomiasis prevention. The completion of schistosomiasis control measures was investigated, and the effectiveness was evaluated. Results A total of 20 545 155 person-times received human schistosomiasis examinations in Sichuan Province during the period from 2015 to 2023, and 232 157 person-times were seropositive, with a reduction in the seroprevalence from 2.10% (44 299/2 107 003) in 2015 to 1.12% (9 361/837 896) in 2023 (χ2 = 7.68, P < 0.001). The seroprevalence of human schistosomiasis appeared a tendency towards a decline in Sichuan Province over years from 2015 to 2023 (b = −8.375, t = −10.052, P < 0.001); however, no egg positive individuals were identified during the period from 2018 to 2023, with the prevalence of human Schistosoma japonicum infections maintained at 0. Expanded chemotherapy was administered to 2 754 515 person-times, and medical assistance of advanced schistosomiasis was given to 6 436 persontimes, with the treatment coverage increasing from 46.80% (827/1 767) in 2015 to 64.87% (868/1 338) in 2023. Parasitological tests for livestock schistosomiasis were performed in 35 113 herd-times, and expanded chemotherapy was administered to 513 043 herd-times, while the number of fenced livestock decreased from 121 631 in 2015 to 103 489 in 2023, with a reduction of 14.92%. Snail survey covered 433 621.80 hm2 in Sichuan Province from 2015 to 2023, with 204 602.81 hm2 treated by chemical control and 4 637.74 hm2 by environmental modifications. The area of snail habitats decreased from the peak of 5 029.80 hm2 in 2016 to 3 709.72 hm2 in 2023, and the actual area of snail habitats decreased from the peak of 8 585.48 hm2 in 2016 to 473.09 hm2 in 2023. The mean density of living snails remained low across the study period except in 2017 (0.62 snails/0.1 m2). Schistosomiasis control efforts by departments of agriculture and rural affairs in Sichuan Province included conversion of paddy fields to dry fields covering 153 346.93 hm2, hardening of 6 110.31 km ditches, building of 70 356 biogas digesters, replacement of cattle with 227 161 sets of machines, and captive breeding of 21 161 070 livestock from 2015 to 2023, and the control efforts by departments of water resources included rivers and lakes management measuring 5 676.92 km and renovation of 2 331 irrigation areas, while the control efforts by departments of forestry and grassland included building of forests for snail control and schistosomiasis prevention covering 23 913.33 hm2, renovation of snail control forests covering 8 720 hm2 and newly building of shelterbelts covering 764 686.67 hm2. All 63 endemic counties (cities and districts) had achieved the criterion for schistosomiasis elimination criteria in Sichuan Province by the end of 2023. Conclusion Following the integrated control efforts from 2015 to 2023, remarkable achievements have been obtained in the schistosomiasis control programme in Sichuan Province, with all endemic counties successfully attaining the schistosomiasis elimination target at the county level.
6.Exploration of an Intelligent Evidence Achieve Mode of Evidence-Based Chinese Medicine:Take Systematic Review of Coronary Heart Disease Syndrome Research as an Example
Qianzi CHE ; Qingyang ZENG ; Tian SONG ; Lin CHEN ; Jing WAN ; Nannan SHI
Journal of Traditional Chinese Medicine 2025;66(15):1597-1603
ObjectiveTo construct an intelligent model for literature screening, retrieval, and data extraction with a systematic review of coronary heart disease syndromes as an example, so as to improve the efficiency of evidence-based Chinese medicine research. MethodsBased on China National Knowledge Infrastructure (CNKI), VIP and Wanfang Data Resource System, the articles related to coronary heart disease syndrome research published from January 1, 2000 to December 31, 2023 were retrieved. Automated tools were used to batch retrieve paper metadata. Using text similarity algorithms, papers were merged, deduplicated, and subjected to preliminary screening based on titles and abstracts. Further screening was performed using object detection and image processing technologies on the full texts and statistical tables. Natural language processing (NLP) techniques and pre-trained models were applied to extract information. ResultsThe initial search retrieved 56 255 coronary heart disease syndrome-related articles. By artificial intelligence-assisted preliminary and secondary screening, the manual verification scope was narrowed to 1075 articles. Ultimately, 646 coronary heart disease syndrome related studies were included manually. With accuracy verification showing over 90% consistency in semantic recognition and element decomposition processes, we achieved data extraction and standardization processing for both basic literature information and 38 syndrome element statistics. ConclusionBy incorporating natural language processing, pre-trained models, artificial intelligence image processing and other technologies, this study enabled efficient retrieval, screening and standardized data extraction of Chinese medicine research literature.
7.Epidemiological analyses of 125 cases of paragonimiasis in Sichuan Province from 2020 to 2023
Yu ZHANG ; Yang LIU ; Liang XU ; Xiaohong WU ; Nannan WANG ; Lin CHEN
Shanghai Journal of Preventive Medicine 2025;37(6):511-514
ObjectiveTo analyze the epidemiological and clinical characteristics of paragonimiasis cases in Sichuan Province, and to provide an evidence for the prevention, diagnosis and treatment of paragonimiasis in medical institutions. MethodsData were collected from case reports submitted by cities (prefectures) from 2020 to 2023, including demographic information, epidemiological features, clinical symptoms, laboratory testing indicators, and awareness of paragonimiasis. Epidemiological descriptions and statistical analyses were performed on these variables. ResultsA total of 125 paragonimiasis cases were reported in Sichuan Province from 2020 to 2023, including 53 thoracic/pulmonary cases and 72 extrapulmonary cases. Geographically, cases were distributed in Dazhou City (63 cases, 50.40%), Yibin City (61 cases, 48.80%), and Deyang City(1 case, 0.80%). The male-to-female ratio was 1.66∶1, with 77.60% (97 cases) aged 0‒18 years. Students accounted for the majority of cases (67 cases, 53.60%). Among the patients, 67 cases (53.60%) had a history of consuming raw or undercooked crabs, and 94 cases (75.20%) reported drinking untreated water. The predominant symptoms included migratory subcutaneous nodules (26.40%), cough (24.80%), and abdominal pain/diarrhea (21.60%). Younger patients exhibited a higher proportion of migratory subcutaneous nodules, while older patients more frequently presented with cough and chest pain (χ2=4.060, P=0.044; χ2=9.235, P=0.002). Elevated eosinophil percentages and absolute counts were observed in 99.20% (124 cases) and 93.60% (117 cases) of patients, respectively. Peripheral white blood cell counts were higher in thoracic/pulmonary cases than that in extrapulmonary cases (Z=2.398, P=0.016), but no statistically significant differences were found in eosinophil absolute counts or percentages between the two types (Z=0.609, P=0.542; Z=0.732, P=0.464). In terms of treatment courses, 28 cases had 1 course, 31 cases had 2 courses, 43 cases had 3 courses, 11 cases had 4 courses, and 10 cases had 5 courses or more. Extrapulmonary cases required significantly longer treatment durations than thoracic/pulmonary cases (t=2.299, P=0.023). Only 12.80% (16 cases) of patients were aware of paragonimiasis. ConclusionParagonimiasis in Sichuan Province occurred sporadically, and the patients were mainly children and adolescents. The clinical manifestations of the patients lacked specificity, making it easy to lead to misdiagnosis. During the diagnosis, epidemiological history, migratory subcutaneous nodules and other main symptoms should be fully considered. An increase of the absolute count and proportion of eosinophils served as significant warning indicators for paragonimiasis infection.
8.Interpretation of the Guideline for Multi-dimensional and Multi-criteria Comprehensive Evaluation of Chinese Patent Medicine:weighting of evaluation indicators
Haili ZHANG ; Bin LIU ; Weili WANG ; Wenjie CAO ; Yijiu YANG ; Ziteng HU ; Yaxin CHEN ; Ning LIANG ; Huizhen LI ; Qianzi CHE ; Xingyu ZONG ; Zhao CHEN ; Yanping WANG ; Nannan SHI
China Pharmacy 2024;35(7):773-777
OBJECTIVE To provide a detailed report and interpretation of the method and results for determining the weights of the technical indicators from the “multi-dimensional and multi-criteria comprehensive evaluation index system (first edition)” stated in Guideline for Multi-dimensional and Multi-criteria Comprehensive Evaluation of Chinese Patent Medicine. METHODS Normalization calculations were performed on the comprehensive weight values calculated by the analytic hierarchy process and expert weighting method to obtain the objective weights of the indicators. RESULTS The weight results of the six primary dimensions in the current comprehensive evaluation indicator system of Chinese patent medicine showed effectiveness dimension> safety dimension>standard dimension>application dimension>scientific dimension>economic dimension, with weight values of 0.281 0, 0.268 5, 0.195 8, 0.107 3, 0.096 1 and 0.051 3 respectively, consistent with the results of most researches currently. CONCLUSIONS The process of weight determination in this indicator system is scientifically reasonable, with clear methods and clear interpretations, and is worthy of further optimization and widespread application.
9.Research progress on regulation of gut microbiota abundance induced by ambient particulate matter exposure
Yaohan WANG ; Nannan HUANG ; Bin LI ; Hanqing CHEN ; Xiaobo LI ; Rui CHEN
Journal of Environmental and Occupational Medicine 2024;41(4):451-456
Particulate matter (PM) is the main air pollutant in China. Due to its wide distribution and difficulties in control, PM has been widely concerned. PM mainly enters human body through respiratory exposure and can cause a variety of health problems. Recent studies have shown that PM exposure is also associated with the occurrence and development of digestive system diseases, as it can enter human body indirectly through the respiratory tract or directly through the digestive tract. Gut microbiota (GM) is a group of microorganisms located in the intestinal epithelium mucosa and intestinal lumen. GM is large in number and rich in functions, and its homeostasis plays an important role in the intestinal health of individuals and even the health of the body. Because GM may mediate the health effects induced by environmental factors, more and more studies have focused on the effects of ambient PM on GM. In this review, we summarized the effects of a variety of ambient PM on GM homeostasis, focusing on five major phyla including Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria, and Verrucomicrobia, and discussed their main functions and the effects of PM on their homeostasis and abundance.
10.Combination of diffusion weighted imaging and dynamic contrast-enhanced MRI for predicting recurrence of hepatocellular carcinoma after TACE combined with radiofrequency ablation
Zhouchao HU ; Xiaodong ZHANG ; Nannan YU ; Benbao CHEN
Chinese Journal of Interventional Imaging and Therapy 2024;21(1):17-21
Objective To explore the value of combination of diffusion weighted imaging(DWI)and dynamic contrast-enhanced MRI(DCE-MRI)for predicting recurrence of hepatocellular carcinoma(HCC)after TACE combined with radiofrequency ablation.Methods Date of 80 HCC patients who underwent TACE combined with radiofrequency ablation were retrospectively analyzed.Abdominal DWI and DCE-MRI were performed 10 days before as well as 20,60 and 90 days after treatment.The sensitivity,specificity and accuracy of combination of DWI and DCE-MRI for predicting recurrence of HCC 20 days after TACE combined with radiofrequency ablation were calculated,and receiver operating characteristic(ROC)curve was drawn to evaluate the efficacy of apparent diffusion coefficient(ADC)value for predicting recurrence of HCC 20 days after treatment.Results Patients with HCC were divided into stable group(n=47)and progressive group(n=33)according to modified response evaluation criteria in solid tumors.Twenty days after TACE combined with radiofrequency ablation,most HCC lesions in stable group presented as uneven DWI signals and high ADC signals without enhancement,while those in progressive group mainly presented as high DWI signals and low ADC signals with mild enhancement.The sensitivity,specificity and accuracy of combination of DWI and DCE-MRI for predicting recurrence of HCC 20 days after TACE combined with radiofrequency ablation was 97.75%(87/89),92.31%(24/26)and 96.52%(111/115),respectively,and the AUC of ADC value was 0.82.Taken 1.42X10-3 mm2/s as the cutoff value of ADC,the sensitivity and specificity of ADC value for predicting recurrence of HCC 20 days after TACE combined with radiofrequency ablation was 72.13%and 82.25%,respectively.Conclusion Combination of DWI and DCE-MRI had certain value for predicting recurrence of HCC after TACE combined with radiofrequency ablation,and ADC could be used as an effective predicting index.


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