1.Prediction of suitable habitats of Phlebotomus chinensis in Gansu Province based on the Biomod2 ensemble model
Dawei YU ; Yandong HOU ; Aiwei HE ; Yu FENG ; Guobing YANG ; Chengming YANG ; Hong LIANG ; Hailiang ZHANG ; Fan LI
Chinese Journal of Schistosomiasis Control 2025;37(3):276-283
Objective To investigate the suitable habitats of Phlebotomus chinensis in Gansu Province, so as provide insights into effective management of mountain-type zoonotic visceral leishmaniasis (MT-ZVL). Methods The geographical coordinates of locations where MT-ZVL cases were reported were retrieved in Gansu Province from 2015 to 2023, and data pertaining to 26 environmental variables were captured, including 19 climatic variables (annual mean temperature, mean diurnal range, isothermality, temperature seasonality, maximum temperature of the warmest month, minimum temperature of the coldest month, temperature annual range, mean temperature of the wettest quarter, mean temperature of the driest quarter, mean temperature of the warmest quarter, mean temperature of the coldest quarter, annual precipitation, precipitation of the wettest month, precipitation of the driest month, precipitation seasonality, precipitation of the wettest quarter, precipitation of the driest quarter, precipitation of the warmest quarter, and precipitation of the coldest quarter), five geographical variables (elevation, annual normalized difference vegetation index, vegetation type, landform type and land use type), and two population and economic variables (population distribution and gross domestic product). Twelve species distribution models were built using the biomod2 package in R project, including surface range envelope (SRE) model, generalized linear model (GLM), generalized additive model (GAM), multivariate adaptive regression splines (MARS) model, generalized boosted model (GBM), classification tree analysis (CTA) model, flexible discriminant analysis (FDA) model, maximum entropy (MaxEnt) model, optimized maximum entropy (MAXNET) model, artificial neural network (ANN) model, random forest (RF) model, and extreme gradient boosting (XGBOOST) model. The performance of 12 models was evaluated using the area under the receiver operating characteristic curve (AUC), true skill statistics (TSS), and Kappa coefficient, and single models with high performance was selected to build the optimal ensemble models. Factors affecting the survival of Ph. chinensis were identified based on climatic, geographical, population and economic variables. In addition, the suitable distribution areas of Ph. chinensis were predicted in Gansu Province under shared socioeconomic pathway 126 (SSP126), SSP370 and SSP585 scenarios based on climatic data during the period from 1991 to 2020, from 2041 to 2060 (2050s), and from 2081 to 2100 (2090s) . Results A total of 11 species distribution models were successfully built for prediction of potential distribution areas of Ph. chinensis in Gansu Province, and the RF model had the highest predictive accuracy (AUC = 0.998). The ensemble model built based on the RF model, XGBOOST model, GLM, and MARS model had an increased predictive accuracy (AUC = 0.999) relative to single models. Among the 26 environmental factors, precipitation of the wettest quarter (12.00%), maximum temperature of the warmest month (11.58%), and annual normalized difference vegetation index (11.29%) had the greatest contributions to suitable habitats distribution of Ph. sinensis. Under the climatic conditions from 1991 to 2020, the potential suitable habitat area for Ph. chinensis in Gansu Province was approximately 5.80 × 104 km2, of which the highly suitable area was 1.42 × 104 km2, and primarily concentrated in the southernmost region of Gansu Province. By the 2050s, the unsuitable and lowly suitable areas for Ph. chinensis in Gansu Province had decreased by varying degrees compared to that of 1991 to 2020 period, while the moderately and highly suitable areas exhibited expansion and migration. By the 2090s, under the SSP126 scenario, the suitable habitat area for Ph. chinensis increased significantly, and under the SSP585 scenario, the highly suitable areas transformed into extremely suitable areas, also showing substantial growth. Future global warming is conducive to the survival and reproduction of Ph. chinensis. From the 2050s to the 2090s, the highly suitable areas for Ph. chinensis in Gansu Province will be projected to expand northward. Under the SSP126 scenario, the suitable habitat area for Ph. chinensis in Gansu Province is expected to increase by 194.75% and 204.79% in the 2050s and 2090s, respectively, compared to that of the 1991 to 2020 period. Under the SSP370 scenario, the moderately and highly suitable areas will be projected to increase by 164.40% and 209.03% in the 2050s and 2090s, respectively, while under the SSP585 scenario, they are expected to increase by 195.98% and 211.66%, respectively. Conclusions The distribution of potential suitable habitats of Ph. sinensis gradually shifts with climatic changes. Intensified surveillance and management of Ph. sinensis is recommended in central and eastern parts of Gansu Province to support early warning of MT-ZVL.
3.Exploration and Challenge of Whole Course Follow-up Management Model for Small Cell Lung Cancer.
Chengming HUANG ; Yongzhao ZHOU ; Jing XU ; Wenting LU ; Li TU ; Yalun LI ; Panwen TIAN
Chinese Journal of Lung Cancer 2025;28(1):47-54
Small cell lung cancer (SCLC) is a highly malignant disease that has garnered significant attention in terms of treatment modalities and course management. Gaining an understanding of the clinical characteristics of SCLC, acquiring proficiency in screening, diagnosis, and treatment methods for this condition, as well as promptly addressing any adverse reactions to treatment are essential foundations for developing a scientific and rational pathological management plan for SCLC. By utilizing an intelligent whole course follow-up management platform, dynamic follow-up, timely warnings, and early interventions can enable high-quality whole life cycle management. This article aims to review the current treatment landscape of SCLC while exploring the challenges associated with implementing a comprehensive process-oriented management approach. The goal is to provide valuable insights for better managing SCLC patients and ultimately improving their quality of life and prognosis.
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Humans
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Small Cell Lung Carcinoma/diagnosis*
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Lung Neoplasms/diagnosis*
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Quality of Life
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Follow-Up Studies
4.Spatiotemporal clustering and hot spot analysis of visceral leishmaniasis in Gansu Province from 1993 to 2023
Dawei YU ; Aiwei HE ; Yu FENG ; Guobing YANG ; Chengming YANG ; Fan LI
Chinese Journal of Schistosomiasis Control 2024;36(4):334-338
Objective To investigate the spatiotemporal clustering characteristics of the reported incidence of visceral leishmaniasis (VL) in Gansu Province from 1993 to 2023, so as to provide insights into the containment of VL and prevention of VL recurrence. Methods County (district)-level epidemical data of VL in Gansu Province from 1993 to 2023 were collected, and the geographical information database of reported VL incidence in Gansu Province was created according to the county-level administrative code and electronic maps in Gansu Province. In addition, the spatial autocorrelation analysis and hot spot analysis of the reported VL incidence were performed in Gansu Province using the software ArcGIS 10.8. Results A total of 2 597 VL cases were reported in Gansu Province from 1993 to 2023, with an annual average incidence rate of 3.036/105. Spatial autocorrelation analysis showed spatial clustering of the reported VL incidence in Gansu Province (Moran’s I = 0.605, Z = 5.240, P < 0.001), appearing high-high clustering features (Getis-Ord G = 0.080, Z = 4.137, P < 0.001), and high-high clustering of the reported incidence of VL was identified in Diebu County, Tanchang County, Zhouqu County and Wenxian County. Hot spot analysis showed hot-spot areas of the reported VL incidence in Tanchang County, Zhouqu County, Wudu District and Wenxian County along the Bailong River basins and cold-spot areas in Qin’an County and Gangu County. Conclusions There was spatial clustering and hot spots of the reported VL incidence in Gansu Province from 1993 to 2023. Intensified surveillance and control is required to prevent the spread of VL.
5.Epidemiological characteristics of visceral leishmaniasis in Gansu Province from 2017 to 2023
Fan LI ; Dawei YU ; Hong LIANG ; Chengming YANG ; Guobing YANG ; Junke YANG
Chinese Journal of Schistosomiasis Control 2024;36(4):339-345
Objective To analyze the epidemiological characteristics of visceral leishmaniasis in Gansu Province from 2017 to 2023, so as to provide insights into formulation of the visceral leishmaniasis control strategy in the province. Methods All epidemiological features of confirmed and clinically diagnosed cases of visceral leishmaniasis reported in Gansu Province from January 1, 2017 to December 31, 2023 were retrieved from the Chinese Disease Prevention and Control Information System, and the epidemiological characteristics of visceral leishmaniasis cases were analyzed descriptively. Results A total of 280 visceral leishmaniasis cases were reported in 39 counties (cities and districts) of Gansu Province from 2017 to 2023, including 258 local cases reported in 21 endemic counties (districts) and 22 imported cases reported in 18 non-endemic areas. Of the 280 cases, there were 262 cases with mountain type zoonotic visceral leishmaniasis (MT-ZVL), 12 cases with desert-type zoonotic visceral leishmaniasis (DT-ZVL), and 6 cases with unknown type. Re-emerging MT-ZVL occurred in Maiji District, Qinzhou District, Lixian County, Kangxian County, Zhenyuan County, Qin’an County and Yongjing County, and re-emerging DT-ZVL occurred in Dunhuang City, while emerging DT-ZVL occurred in Yumen City. The five counties (districts) reporting the highest number of visceral leishmaniasis cases included Wudu District, Wenxian County, Tanchang County, Zhouqu County and Diebu County, and a total of 220 cases were reported in these five counties, accounting for 78.57% of all visceral leishmaniasis cases in the province. Visceral leishmaniasis cases were reported each month throughout the year, with the peak in July. All reported visceral leishmaniasis cases had ages of 6 months to 81 years, including 50.71% (142/280) under 15 years of age, 49.29% (138/280) at ages of 15 years and older, and of all cases under 15 years of age, children at ages of 0 to 3 years were the most commonly affected (27.14%, 76/280). Among 280 visceral leishmaniasis cases, there were 173 males and 107 females with a male to female ratio of 1.62∶1, and farmer was the most common occupation (40.36%), followed by diaspora children (37.86%). Conclusions The prevalence of visceral leishmaniasis appeared an overall tendency towards a decline in Gansu Province from 2017 to 2023; however, there are still multiple challenges for visceral leishmaniasis control in the province. Reinforced dog monitoring and management, intensified human health education and improved capability building among professionals are recommended to manage the rebounding and spread of visceral leishmaniasis.
6."Medicinal Part-Habitat-Nature, Taste, and Effect" Correlations of Pteridophyte-derived Chinese Medicinal Materials
Wange WU ; Baoyu JI ; Jianglong HE ; Xiuqing LI ; Panpan LI ; Suiqing CHEN ; Chengming DONG ; Hongxin CUI ; Lixin PEI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):204-211
ObjectiveTo explore the correlations between botanical characteristics, biological characteristics, growth environment, and medicinal properties of common pteridophyte-derived Chinese medicinal materials, thus providing evidence for the theory of quality evaluation through morphological identification and giving insights into the extensive and reasonable application of pteridophytes in traditional Chinese medicine (TCM). MethodThe medicine parts, habitats, natures, tastes, and effects of the commonly used pteridophyte-derived Chinese medicinal materials were summarized. The commonly used pteridophyte-derived Chinese medicinal materials were retrieved from the Pharmacopoeia of China, Dictionary of Chinese Materia Medica, and related literature. Excel 2016, ChiPlot, Cytoscape 3.7.1, SPSS 21.0, and weiciyun software were used for statistical analysis. ResultThe frequency of the habitats followed the trend of streamside wetland>tree trunk and rock crevices>sunslope>water surface. The frequency of medicinal parts presented the trend of whole plant>rhizome>leaf>dried aboveground part>spore. The frequency of natures was in the order of cool>cold>plain>warm>hot, and that of tastes was in an order of bitter>pungent>sweet>bland>salty. The frequency of meridian tropism followed the trend of liver meridian>stomach meridian>lung meridian>kidney meridian>bladder meridian>heart meridian>large intestine meridian>spleen meridian>small intestine meridian. The effects of the pteridophyte-derived Chinese medicinal materials followed a frequency trend of clearing heat and detoxifying>promoting urination and relieving stranguria>cooling blood and stopping bleeding>activating blood and resolving stasis>dispelling wind and eliminating dampness. ConclusionThe pteridophyte-derived Chinese medicinal materials mainly have a cool nature, a bitter taste, and tropism to the liver meridian. Whole plants and roots are mainly used for medicinal purposes, and most of these plants grow in the wetlands near rivers, under trees, and in tree trunk and rock crevices. The main effects of these medicinal materials are clearing heat and detoxifying, dispelling wind and removing dampness, cooling blood and stopping bleeding, activating blood and resolving stasis, and soothing meridians and dredging collaterals. There are certain correlations between the structures, habitats, medicinal parts, and effects of pteridophyte-derived Chinese medicinal materials, which provide reference for the development and utilization of pteridophyte-derived Chinese medicinal material resources.
7."Medicinal Part-Habitat-Tissue-Component" Correlations of Aquatic Chinese Medicinal Plants
Lin CHEN ; Baoyu JI ; Lixin PEI ; Shuangquan XU ; Tangshuai LI ; Suiqing CHEN ; Chengming DONG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):212-221
ObjectiveTo explore the correlations between the medicinal parts, habitats, tissue, components, and medicinal properties (natures, tastes, and effects) of 100 aquatic Chinese medicinal plants, thus providing evidence for the relationship between image and analogy and laying a theoretical foundation for the clinical use and development of aquatic Chinese medicinal plant resources. MethodThe Aquatic Plants of China, Flora of China, and related literature were searched, and a total of 100 aquatic Chinese medicinal plants included in the Chinese Pharmacopoeia (2020 edition), Chinese Materia Medica, National Compilation of Chinese Herbal Medicines, Dictionary of Chinese Materia Medica, and local standards were screened out. The medicine-taxonomic status-life habit associations and nature-component-traditional Chinese medicine classification-pharmacological effect associations were analyzed respectively. ResultThe aquatic Chinese medicinal plants mostly had a cold nature, bitter, pungent, and sweet tastes, and tropism to the liver meridian. The whole plant or aerial part was mainly used for medicinal purposes, and these plants generally had well developed aerenchyma. These plants mainly contained flavonoids, alkaloids, and volatile oils and had the effects of clearing heat, detoxifying, and promoting urination. ConclusionThere are correlations between the medicinal parts, habitats, tissue, components, medicinal properties, and effects of aquatic Chinese medicinal plants, which provide reference for the development and utilization of aquatic Chinese medicinal plant resources.
8.Based on "Medicinal Part-Chemical Component-Pharmacological Activity-Nature, Taste, and Effect" Correlations of Thorny Medicinal Plants
Tangshuai LI ; Baoyu JI ; Lin CHEN ; Shuangquan XU ; Jianglong HE ; Suiqing CHEN ; Chengming DONG ; Lixin PEI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):222-230
ObjectiveTo make statistics on the biological characteristics, medicinal parts, chemical components, and other aspects of thorny medicinal plants and systematically analyze the correlations between their natures, tastes, and meridian tropism, so as to provide a theoretical basis for the clinical application and resource development of these plants. MethodThe Chinese Pharmacopoeia (2020 edition) and the processing standards of various provinces and cities and other related documents were reviewed, on the basis of which 46 species of thorny medicinal plants were selected. The natures, tastes, meridian tropism, medicinal parts, chemical components, pharmacological activities, and geographical distribution of these plants were summarized and analyzed in Excel 2013 and SPSS Statistics 26.0. ResultThe 46 species of thorny medicinal plants belonged to 25 families, 1 class, 1 phylum of 1 kingdom. In terms of the location of thorns, the frequency of these medicinal plants followed the trend of leaf thorns>peel thorns>branch thorns>fruit thorns. In terms of the nature, taste, and meridian tropism, the frequency of these plants was in the orders of warm>plain>cold>cool>hot, bitter>sweet>pungent>sour>salty, and liver>lung>spleen=large intestine>heart>kidney, respectively. In terms of the medicinal parts, the frequency followed the trend of roots and rhizomes>fruits>whole plants>flowers>leaves. The thorny medicinal plants were mainly distributed in north and southwest China. The thorny medicinal plants mainly contained flavonoids, alkaloids, and saponins and had the effects of clearing heat and detoxifying, resolving stasis and eliminating carbuncle, moving Qi and relieving pain, and alleviating edema and expelling pus. Moreover, 24 of them had anti-tumor activity. ConclusionMost of the thorny medicinal plants belong to Compositae, Leguminosae, and Rosaceae, have leaf thorns, a warm nature, a bitter taste, tropism to the liver meridian, and roots as the medicinal part. These plants are mainly distributed in north China, with the effects of clearing heat and detoxifying, resolving stasis and eliminating carbuncle. In summary, the thorn location, distribution, and medicinal parts of thorny medicinal plants are correlated with the natures, tastes, and meridian tropism. The findings provide clues for the development and utilization of these plants.
9.Hepatocellular carcinoma cells promote angiogenesis of HUVEC via the eNAMPT-INSR axis
Junjie Wu ; Shizhou Li ; Chengming Gao ; Pengbo Cao ; Gangqiao Zhou
Acta Universitatis Medicinalis Anhui 2024;59(12):2141-2149
Objective:
To investigate the function and potential mechanism of hepatocellular carcinoma(HCC) cells-derived extracellular nicotinamide phosphoribosyl transferase(eNAMPT) in the angiogenesis of human umbilical vein endothelial cells(HUVEC).
Methods:
The eNAMPT secretion of HCC cells were stimulated by hypoxia treatment and investigated the angiogenesis of HUVEC was investigated by tube formation assays. Transcriptomic RNA sequencing(RNA-seq) analyses of HUVEC under eNAMPT treatment were used to explore the mechanism of the effect of eNAMPT-insulin receptor(INSR) axis on angiogenesis. Western blot was used to detect the effects of eNAMPT-INSR axis on protein expression of HUVEC cells. qRT-PCR was used to detect the influence of eNAMPT-INSR axis on the expression of HUVEC intracellular related target genes.
Results:
ELISA and Western blot results showed that the protein level of eNAMPT in the culture supernatant of HCC cells increased significantly after hypoxia stimulation.In vitroangiogenesis assay results showed that eNAMPT significantly increased the nodules number and total length of tubes in HUVEC. The transcriptome sequencing results of HUVEC showed that eNAMPT, as an insulin analogue, participated in the regulation of biological processes such as cell migration and angiogenesis in HUVEC, and might promote angiogenesis by activating insulin-like signaling pathways. Western blot results showed that the eNAMPT-INSR axis affected p-AKT and p-ERK1/2 protein levels in PI3K-AKT and MAPK-ERK1/2 signaling pathways in HUVEC. qRT-PCR results showed that the eNAMPT-INSR axis affected the expression of angiogenesis related target genes MMP2, MMP9 and VEGF in HUVEC.
Conclusion
eNAMPT secreted by HCC cells promotes angiogenesis by binding INSR to activate the PI3K-AKT and MAPK-ERK1/2 signaling pathways.
10.Research Progress of Comprehensive Follow-up Management Strategy on the Natural History of Simultaneous,Persistent Multiple Pulmonary Ground-glass Nodules
HUANG CHENGMING ; ZHOU YONGZHAO ; FANG YUJIN ; LIU YANYANG ; WANG LI ; ZHUO YU ; ZHU DAXING
Chinese Journal of Lung Cancer 2024;27(9):691-696
The development and change patterns as well as the disease course management of multiple ground-glass nodules(GGNs)in the lungs are currently hotspots and difficulties in clinical lung cancer research.Understanding the latest advancements in the natural history of multiple GGNs is crucial for grasping the disease variation patterns and formulat-ing management strategies.Meanwhile,utilizing advanced methods such as intelligent follow-up management platforms makes the long-term standardized management of GGNs possible.Therefore,this article provides an overview of the latest research advancements on the natural history of multiple GGNs and new experience in GGNs management.


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