1.Research hotspots and frontiers of stem cells for Alzheimer's disease
Liugang XIE ; Shuke CUI ; Nannan GUO ; Aoyu LI ; Jingrui ZHANG
Chinese Journal of Tissue Engineering Research 2025;29(7):1475-1485
BACKGROUND:Stem cells can promote nerve regeneration,repair damaged nerves,inhibit inflammation and apoptosis of nerve cells,and provide a new way for the treatment of Alzheimer's disease. OBJECTIVE:To make a bibliometrical analysis of the articles on stem cell therapy for Alzheimer's disease published internationally from 2004 to 2023,in order to reveal the research hotspot and trend of stem cell therapy for Alzheimer's disease. METHODS:From the Web of Science Core Collection database,by using Excel,VOSviewer,and Citespace software,the annual number of publications,countries,institutions,journals/co-cited journals,authors,and keywords of articles related to stem cells and Alzheimer's disease published from January 1,2004 to October 31,2023 were visually analyzed. RESULTS AND CONCLUSION:A total of 3 521 core papers were included,and the number of published papers increased year by year.The United States is the country with the most papers.Harvard Medical School is the most prolific institution.Maiese kenneth is the author with the most papers.International Journal of Molecular Sciences has the most papers in this field.The journal PLoS One published the most citations.At present,the field of stem cell therapy for Alzheimer's disease focuses on pathophysiological mechanism and animal experimental research,and"neurogenesis","oxidative stress","extracellular vesicles",and"mesenchymal stem cells"are the research trends in this field.Stem cell therapy for Alzheimer's disease has broad prospects.In the future,exchanges and cooperation between institutions and authors should be strengthened to further explore the main mechanism of stem cell therapy for Alzheimer's disease,solve possible clinical problems such as immune rejection,effectiveness,and safety,and further tap the potential of stem cells in the treatment of Alzheimer's disease.
2.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.
3.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.
4.Exploratory Study on the Theory of the Spatiotemporal Structure of Visceral Manifestation
Houfang MA ; Xiaoying XU ; Linghao MENG ; Haili ZHANG ; Nannan SHI
Journal of Traditional Chinese Medicine 2025;66(16):1629-1634
The "integrated time-space" perspective of life in traditional Chinese medicine holds that structure and function respectively belong to the realms of space and time. The orderly integration of time and space not only supports the existence and development of life, but also serves as the foundation for biological evolution. Based on this standpoint, this paper proposes the spatiotemporal structural theory of visceral manifestation, characterized by the fusion of time and space, the integration of internal and external dimensions, and the absence of primary or secondary distinctions. Using the individual human body as the boundary, it delineates the man and nature spatiotemporal structure, based on the theory of the "correspondence between man and nature", and the internal spatiotemporal structure of the living body. The man and nature spatiotemporal structure, with yin-yang and the five phases as its core, reveals the correspondence and connectivity between the external environment and the internal zang-fu organs within the spatiotemporal dimension. The internal temporal structure of the body refers to the collective physiological rhythms related to the zang-fu organs, while the spatial structure refers to the tangible forms, spatial positions, and connective structures of the zang-fu organs. The proposal of the spatiotemporal structural theory of visceral manifestation represents a rational reconstruction and practical exploration of the essential connotations of visceral manifestation, aiming to provide new perspectives for subsequent theoretical research and clinical applications.
5.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.
6.Correlation between depressive symptom and traditional Chinese medicine constitution among school aged children and adolescents
Chinese Journal of School Health 2025;46(9):1222-1225
Objective:
To explore the correlation between traditional Chinese medicine (TCM) constitution and depressive symptom among school aged children and adolescents, so as to provide evidences for informing constitution based regulation and prevention of depressive symptom.
Methods:
From June to December 2024, a total of 4 729 students aged 6-14 were recruited by cluster random sampling from 10 primary schools in Baoding (Hebei Province), Heze and Liaocheng (Shandong Province). General information, TCM constitution and depressive symptom were collected. Restricted cubic spline (RCS) models were used to analyze related factors and threshold effects of depressive symptom. Binary Logistic regression was applied to examine the association between depressive symptom and TCM constitution, with subgroup analyses conducted.
Results:
The detection rate of depressive symptom among the included children and adolescents was 25.82%. RCS analyses indicated non linear associations between depressive symptom and age (inflection point at 10 years old), bedtime (inflection point at 22:00), and wake up time (inflection point at 6:30 ) (all P non linearity <0.01). Linear associations were observed with body mass index (BMI) and sleep duration (all P non linearity > 0.05 ). After adjusting for covariates such as age, BMI and sleep status, binary Logistic regression analyses showed that Yin deficient constitution ( OR =1.26, 95% CI =1.09-1.45) and Phlegm-dampness constitution ( OR =1.42, 95% CI =1.11-1.82) were significantly associated with depressive symptom among children and adolescents (all P <0.05).
Conclusions
Depressive symptom among school aged children and adolescents is primarily associated with Yin deficiency and Phlegm dampness constitutions in TCM constitution. Active attention should be paid to susceptible TCM constitution among children and adolescents. Targeted health guidance and interventions should be implemented to improve TCM constitution health status for preventing the occurrence of depressive symptom.
7.Effects of peripheral blood-derived exosomes intervened by Naozhenning on injury of neuron induced by microglia
Li GAO ; Le ZHAO ; Liya WU ; Weiyi ZHANG ; Nan LI ; Nannan WEI ; Yonghui WANG
China Pharmacy 2025;36(19):2393-2398
OBJECTIVE To study the effects of peripheral blood-derived exosomes (Exo) intervened by Naozhenning (NZN) on injury of neuron cells HT22 induced by microglia BV-2 cells. METHODS Wistar rats were selected to prepare peripheral blood- derived Exo intervened by NZN (66.83 g/kg), referred to as NZN-Exo; peripheral blood-derived Exo intervened by normal saline and piracetam (PLXT, 1.62 g/kg) were prepared using the same method, denoted as KB-Exo and PLXT-Exo respectively, and all Exo were subsequently identified. Meanwhile, BV-2 cells were stimulated with 1 μg/mL lipopolysaccharide (LPS) to prepare LPS- stimulated supernatant, and non-LPS-stimulated supernatant was prepared following the same protocol. HT22 cells were divided into four groups: KB-Exo group (treated with non-LPS-stimulated supernatant+KB-Exo), model group (treated with LPS-stimulated supernatant+KB-Exo), PLXT-Exo group (treated with LPS-stimulated supernatant+PLXT-Exo), and NZN-Exo group (treated with LPS-stimulated supernatant+NZN-Exo), with the concentration of the corresponding Exo in all groups being 50 μg/mL. After 24 hours of culture, the proliferation of HT22 cells was detected by the CCK-8 assay and EdU assay; the apoptosis of HT22 cells was detected; the microstructure of HT22 cells was observed; the contents of interleukin-1β (IL-1β), IL-10, nuclear factor-κB (NF- κB), and tumor necrosis factor-α (TNF-α) in HT22 cells were measured, as well as the expression levels of TNF-α, NOD-like receptor thermal protein domain associated protein 3 (NLRP3), Caspase-1, B-cell lymphoma-2( Bcl-2), and Bcl-2-associated X protein (Bax). RESULTS KB-Exo, PLXT-Exo and NZN-Exo were successfully prepared, and all Exo exhibited typical cup-shaped contours and membrane-enclosed characteristics. Compared with KB-Exo group, model group showed significantly decreased cell proliferation rates (detected by CCK-8 and EdU), intracellular IL-10 levels, and Bcl-2 protein expression levels (P<0.05); while the cell apoptosis rate, intracellular levels of IL-1β, TNF-α, and NF-κB, as well as the expression levels of NLRP3, TNF-α, Caspase-1, and Bax proteins were significantly increased (P<0.05). Additionally, in the model group, the cells showed volume swelling, incomplete cell membrane, nucleolar rupture, significant swelling and deformation of mitochondria, and severe vacuolization. Compared with model group, the above quantitative indicators in the PLXT-Exo group and NZN-Exo group were significantly reversed (P<0.05), with large and round cell nuclei, intact nuclear membranes, and reduced mitochondrial vacuolization. CONCLUSIONS Peripheral blood-derived Exo intervened by naozhenning can alleviate the injury of neuronal cells HT22 by inhibiting inflammatory responses and cell apoptosis.
8.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.
9.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.
10.Methodology for the Development of Clinical Practice Guideline for Chinese Patent Medicine(Part 1): Development Status and Characteristics
Ning LIANG ; Lijiao YAN ; Yujing ZHANG ; Fuqiang ZHANG ; Ziteng HU ; Yaxin CHEN ; Huizhen LI ; Haili ZHANG ; Zhao CHEN ; Yin JIANG ; Bin LIU ; Nannan SHI ; Yanping WANG
Journal of Traditional Chinese Medicine 2024;65(1):44-49
The irrational use of Chinese patent medicines (CPM) is becoming more and more prominent, which makes the demand for clinical practice guidelines of CPM gradually increase. In order to make domestic scholars understand the latest developments and existing problems of the CPM guidelines, and promote its development, this paper introduced the concept of CPM guidelines, summarized the characteristics of the two development modes, namely “taking CPM as the key” and “taking disease/syndrome as the key”, and analyzed the current methodological status of developing and reporting CPM guidelines. Based on the existed problems, three suggestions have been put forward to optimize the quality of CPM guidelines, which were clarifying the target users and scope of CPM guidelines, establishing an open and transparent mechanism of the personnel involvement and process steps, and formulating implementable and operable recommendations for the use of CPM.


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