1.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.
2.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.
3.Preliminary Construction of Comprehensive Evaluation System for TCM Clinical Practice Guidelines Based on Bibliometric Analysis and Core Element Extraction
Xue CHEN ; Gezhi ZHANG ; Danping ZHENG ; Fangqi LIU ; An LI ; Junjie JIANG ; Nannan SHI ; Wei YANG ; Xinghua XIANG ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):209-219
ObjectiveTo construct a comprehensive evaluation indicator system for clinical practice guidelines of traditional Chinese medicine (TCM) that is scientific, systematic, and reflects the characteristics of TCM. MethodsA systematic search was conducted in Chinese and English databases, including CNKI, Wanfang, VIP, SinoMed, PubMed, Embase, and Cochrane Library, to include literature on domestic and international guideline evaluation tools and TCM-related research. Document analysis and CiteSpace were utilized for keyword co-occurrence and clustering analysis. ResultsA total of 65 relevant studies were included, from which seven core thematic domains were identified. Based on the research objectives, a two-step construction strategy was adopted: first, an external evaluation framework was established by referencing international tools to cover methodological rigor and procedural standardization; second, an internal evaluation framework was developed to reflect the distinctive features of TCM clinical practice, including syndrome differentiation and efficacy feedback. Through expert consensus, the indicator system was refined, resulting in a dual-layered structure comprising 8 primary indicators, 22 secondary indicators, and 62 evaluation criteria. ConclusionThe comprehensive evaluation system for TCM clinical practice guidelines, based on bibliometric analysis and core element extraction, integrates both theoretical integrity and practical applicability. This study provides a preliminary research foundation for further optimization, validation, and development of a refined comprehensive evaluation system.
4.Effect of Gandou Fumu Decoction on Autophagy in Mice with Liver Fibrosis in Wilson's Disease by Regulating Expression of miR-29b-3p/ULK1
Nannan QIAN ; Wenming YANG ; Taohua WEI ; Lulu TANG ; Hailin JIANG ; Wenjie HAO ; Yulong YANG ; Shuaishuai ZHANG ; Sheng HU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):17-25
ObjectiveTo explore the mechanism and pathway of Gandou Fumu decoction (GDFMD) in the development of liver fibrosis in Wilson's disease (WD). MethodFirst, 30 TX-j mice were randomly divided into the model group, high-dose, medium-dose, and low-dose GDFMD groups, and penicillamine group, with six mice in each group, and another six wild-type mice were used as the normal group. The high-dose, medium-dose, and low-dose GDFMD groups were intragastrically administered drugs of 13.92, 6.96, 3.48 g·kg-1. In the penicillamine group, 0.1 g·kg-1 of penicillamine was given by intragastric administration. The model group and the normal group were given equal volume of normal saline, once a day, for four consecutive weeks. Samples were collected four weeks after gavage, and enzyme-linked immunosorbent assay (ELISA) was used to detect type Ⅲ procollagen peptide (PCⅢ), collagen type Ⅳ (Col Ⅳ), hyaluronic acid (HA), and laminin (LN). Hematoxylin-eosin (HE), Masson, and picric acid-Sirus red collagen (Sirus Red) staining were used to observe the histopathological changes of liver fibrosis. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), immunohistochemistry, and Western blot were used to observe the expressions of α-smooth muscle actin (α-SMA) and collagen type Ⅰ (Col Ⅰ), which were related to the activation of hepatic stellate cells (HSCs). The expression of miR-29b-3p was observed by Real-time PCR. The expression of Unc-51-like kinase 1 (ULK1) and its downstream-related factors were observed by Western blot. The downstream genes of miR-29b-3p were verified by the dual luciferase reporter gene detection method. ResultCompared with the normal group, the four items of liver fibrosis (PCⅢ, Col Ⅳ, HA, and LN) in the model group were significantly abnormal (P<0.01), and the pathology was significantly abnormal. The expression of HSC activation-related indicators including α-SMA and Col Ⅰ, as well as α-SMA mRNA and Col Ⅰ mRNA was up-regulated (P<0.05, P<0.01), and miR-29b-3p expression was down-regulated (P<0.01). ULK1, p-ULK1, autophagy-related gene 13 (Atg13), p-Atg13, Beclin-1, FAK family kinase-interacting protein of 200 kDa (FIP200), activating molecule in BECN1-regulated autophagy protein 1 (AMBKA1), and microtubule-associated protein 1 light chain 3Ⅱ/Ⅰ(LC3Ⅱ/Ⅰ) were up-regulated (P<0.05, P<0.01). p62 protein expression was down-regulated (P<0.01). Compared with the model group, the four items of liver fibrosis in the high-dose, medium-dose, and low-dose GDFMD groups and the penicillamine group were significantly improve (P<0.01), and the pathological conditions were improved. The expression of HSC activation-related indicators including α-SMA and Col Ⅰ, as well as α-SMA mRNA and Col Ⅰ mRNA was down-regulated (P<0.05, P<0.01), and the expression of miR-29b-3p was up-regulated (P<0.01). ULK1, p-ULK1, Atg13, p-Atg13, Beclin-1, FIP200, AMBKA1, and LC3Ⅱ/Ⅰ were down-regulated (P<0.05, P<0.01), and p62 protein expression was up-regulated (P<0.01). The prediction software predicted that there was a binding site between miR-29b-3p and ULK1. The dual-luciferase reporter gene detection method indicated that the luciferase activity of the ULK1-WT plasmid-transfected cell group was reduced when miR-29b-3p mimics were co-cultured (P<0.01). ConclusionGDFMD can regulate ULK1-mediated autophagy by up-regulating miR-29b-3p and further exert its anti-hepatic fibrosis effect in Wilson's disease.
5.Methodology for the Development of Clinical Practice Guidelines for Chinese Patent Medicine: 2.Establishment of Guideline Working Group and Management of Conflict of Interests
Yaxin CHEN ; Ning LIANG ; Lijiao YAN ; Ziteng HU ; Yujing ZHANG ; Fuqiang ZHANG ; Haili ZHANG ; Huizhen LI ; Yijiu YANG ; Jing GUO ; Nannan SHI ; Yanping WANG
Journal of Traditional Chinese Medicine 2024;65(1):50-54
This paper summarized the key points and methods in terms of the establishment of the guideline working group and the management of conflict of interests, trying to provide reference for the development of clinical practice guidelines for Chinese patent medicine (CPM). The establishment of the working group is the first important step for developing CPM guidelines. Considering the characteristics of the clinical practice guidelines for CPM, this study suggests that the three key elements of ‘multidisciplinarity’, ‘clinical relevance’ and ‘geographical representativeness’ should be put focus on when forming the working group. The guideline advisory committee, clinical expert group, evidence systematic evaluation group, secretary group and the external review group should be established. All group members should clarify the conflict of interest, and the process and management method of the conflict of interest should be clearly reported.
6.Characteristics of Emergency Health Systems Guidance Based on AGREE-HS
Danping ZHENG ; Wei YANG ; Nannan SHI ; Dongfeng WEI ; An LI ; Gezhi ZHANG ; Xue CHEN ; Fangqi LIU ; Zhaoshuai YAN ; Weixuan BAI ; Xinghua XIANG ; Yaxin TIAN ; Mengyu LIU ; Huamin ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):137-148
This study used the Appraisal of Guidelines Research & Evaluation-Health Systems (AGREE-HS) to demonstratively compare 34 global coronavirus disease-2019 (COVID-19) health systems guidance documents (HSGs) and 6 World Health Organization (WHO) standard HSGs. The comparison involved topic, participants, methods, recommendations, and implementability, with the aim of exploring the characteristics of emergency HSGs. The results showed that the emergency HSGs had an overall average score of 49%, with topic having the highest score, recommendations having the second highest score, and participants having the lowest score. The standard HSGs had an overall average score of 79%, with high scores in all items. The emergency HSGs had lower scores in participants, methods, recommendations, and implementability than the standard HSGs (P<0.001), while the COVID-19 emergency HSGs developed by the WHO had higher score in topic than the standard HSGs (P<0.05). Compared with those released by countries, the COVID-19 emergency HSG developed by the WHO showed superiority in all items and overall scores (P=0.000 2). This indicates that emergency HSGs, represented by the COVID-19 emergency HSG, place equal emphasis on topic and recommendations as standard HSGs but have low requirements in terms of expert participation, evidence support, and comprehensive consideration in the time- and resource-limited context. They have the characteristics of prominent topics, clear purposes, orientation to demand, keeping up with the latest evidence, flexible adjustment, and timeliness, emphasizing immediate implementation effects, weakening long-term effects, and focusing on comprehensive benefits. Additionally, developers, types, and report completeness are important influencing factors.
7.Characteristics of Developing Methods for Emergency Health Systems Guidance Based on AGREE-HS
Danping ZHENG ; Wei YANG ; Dongfeng WEI ; Nannan SHI ; Lin TONG ; An LI ; Gezhi ZHANG ; Xue CHEN ; Fangqi LIU ; Weixuan BAI ; Xinghua XIANG ; Mengyu LIU ; Huamin ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):149-156
The scientific rigor and efficacy of methodologies employed in drafting emergency health systems guidance documents (HSGs) are paramount in guaranteeing the quality, reliability, and applicability of HSGs. According to the Appraisal of Guidelines for Research and Evaluation- Health Systems (AGREE-HS), we demonstratively assessed both global coronavirus disease-2019 (COVID-19) emergency HSGs and World Health Organization (WHO) standard HSGs to uncover the core attributes of methods employed in the development of emergency HSGs. Our evaluation findings revealed that across the five assessment items of AGREE-HS, methods in the 34 emergency HSGs evaluated ranked third, trailing behind topic and recommendations. Notably, criterion 2 (the best available and most contextually relevant evidence is considered) received the highest score, whereas criterion 5 (evidence of cost and cost-effectiveness of the potential options is described) scored the lowest. Compared with the WHO standard HSGs, the COVID-19 emergency HSGs exhibited low scores in methods (P<0.05), which was reflected in nine criteria (P<0.05), especially in criteria 1 (systematic and transparent methods are used to identify and review the evidence) and 9 (systematic and transparent methods are used to agree upon the final recommendations). Among the COVID-19 emergency HSGs, that developed by the WHO achieved higher scores in eight out of all nine criteria, excluding criterion 8 (P<0.05). The clinically relevant emergency HSGs had higher scores in the criteria 3 (the evidence base is current) and 8 (the rationale behind the recommendations is clear) than other types of emergency HSGs. Collectively, the methodology for developing emergency HSGs, represented by the COVID-19 emergency HSG, underscores evidence orientation and integrates expert consensus. It is characterized by adaptable evidence synthesis strategies, streamlined evidence review protocols, and contextual relevance, all of which are influenced by external, internal, and implementation-specific factors.
8.Characteristics of Participants for Developing Emergency Health Systems Guidance Based on AGREE-HS
An LI ; Gezhi ZHANG ; Xue CHEN ; Fangqi LIU ; Danping ZHENG ; Weixuan BAI ; Wei YANG ; Dongfeng WEI ; Nannan SHI ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):157-163
The formulation method of emergency health systems guidance (HSG) is crucial, directly impacting the efficiency and effectiveness of responses in emergencies. A scientifically sound, systematic, and easily executable guidance document can assist health institutions at all levels in quickly coordinating resources, standardizing emergency response processes, and safeguarding public health. This study employed the Appraisal of Guidelines for Research and Evaluation for Health Systems (AGREE-HS) to analyze the characteristics of participants in developing emergency HSGs represented by the COVID-19 emergency HSG. The results showed that in the 34 HSGs included in this study, the item participants received the lowest score. Within this item, criterion 1 (diversity of development group) scored the highest (3.13±1.55), while criterion 5 (prevention of funding agency influence) scored the lowest (1.21±0.47). There were differences (P<0.05) in measures taken to mitigate funding agency influence between the six standard HSGs developed by the World Health Organization (WHO) and the four emergency HSGs. Additionally, differences (P<0.05) existed in the development group members, background, conflicts of interest, and preventive measures between the six WHO standard HSGs and the 34 emergency HSGs, as well as between the HSGs developed by the WHO and those developed by countries. The participants in developing emergency HSGs were influenced by various factors, including limited time for guideline development, modes of participation, scarce evidence, and uncertainties in expected outcomes. There is a need to downplay extensive requirements concerning the composition of group members, institutional diversity, and conflicts of interest, emphasizing the roles of key participants like government officials and professionals who can provide rapid, practical guidance in emergency situations.
9.Characteristics of Recommendations for Emergency Health Systems Guidance Based on AGREE-HS
Gezhi ZHANG ; Cuifang LIU ; Danping ZHENG ; Xue CHEN ; An LI ; Fangqi LIU ; Dongfeng WEI ; Wei YANG ; Nannan SHI ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):164-170
Recommendations, consensus-based syntheses of the best available evidence, constitute the core content of a guideline. This paper analyzes the characteristics of emergency health systems guidance documents (HSGs), represented by the coronavirus disease-2019 (COVID-19) emergency HSG, regarding the item "recommendations" and its eight evaluation criteria in the Appraisal of Guidelines for Research and Evaluation for Health Systems (AGREE-HS). The World Health Organization (WHO) standard HSGs were used as reference to explore the characteristics of emergency HSGs that are different from non-emergency HSGs. The results showed that the “recommendations” scored second after “topic” among the five items. Criterion 7 relating to operability scored higher than others among the eight criteria, and criterion 3 dealing with ethical principles scored lower than other criteria. Compared with the standard HSGs, the emergency HSGs showed decreased scores (P<0.05) of the item recommendations and the criteria of this item except criterion 4 concerning equity promotion. Among the HSGs with different developers, those developed by the WHO had higher (P<0.05) scores of recommendations than nationally developed HSGs, as evidenced by criterion 4, criterion 5 involving acceptability to and alignment with sociocultural and political interests, and criterion 8 for updating plans. The HSGs regarding global or country strategy scored higher (P<0.05) on criterion 2 relating to comprehensiveness than those involving specific guidance on clinical or material issues. Overall, the emergency HSGs, represented by the COVID-19 emergency HSGs, differ from the standard HSGs in a number of ways in terms of their recommendations. Emergency HSGs have more condensed content and weaker articulation of expected outcomes. They incline to put more emphasis on updating plans, rather than comprehensiveness or integrative requirements in terms of ethics, equity, and sociocultural and political interests.
10.Characteristics of Topic for Emergency Health Systems Guidance Based on AGREE-HS
Xue CHEN ; An LI ; Fangqi LIU ; Danping ZHENG ; Gezhi ZHANG ; Nannan SHI ; Wei YANG ; Dongfeng WEI ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):171-177
The clear definition of the topic in emergency health systems guidance (HSG) ensures the relevance, scientific rigor, and practicality of the guidance, providing a clear direction and a framework for a rapid and effective public health response. This study used the Appraisal of Guidelines for Research & Evaluation-Health Systems (AGREE-HS) to demonstratively evaluate the global COVID-19 emergency HSGs and World Health Organization (WHO) standard HSGs, aiming to explore the characteristics of topic in emergency HSGs. The results showed that in the 34 HSGs included, the item topic received the highest score. Specifically, criterion 4 relating to relevant and applicable factors scored the highest (5.59), while criterion 3 concerning the prioritization of health system challenges scored the lowest (2.76). There were differences (P<0.05) in criterion 1 between standard HSGs and overall emergency HSGs, as well as between WHO and national emergency HSGs. Criterion 3 also showed differences (P<0.05) between standard HSGs and emergency HSGs, as well as between WHO and national emergency HSGs. Criterion 4 displayed differences (P<0.000 1) between WHO and national emergency HSGs. No differences were observed in intra-group or inter-group comparisons of different emergency HSG subcategories (P<0.05). Overall, emergency HSGs represented by the COVID-19 emergency HSG focus on detailing the challenges faced by the health system, including the natures of challenges, affected populations, and other relevant and applicable factors, while aligning with stakeholder concerns. The prioritization is downplayed, with emphasis placed on rapid responses to and flexible handling of urgent issues. Influenced by factors such as the evidence base, phase timing, and effectiveness, the topic setting shows variations.

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