1.Prediction of the Potential Geographic Distribution of Tibetan Medicine Lamiophlomis rotata(Benth.)Kudo in the Qinghai-Xizang Plateau Based on Integrating Multiple Models
Guangzhen WAN ; Baoqiong WANG ; Lin JIN ; Juan CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(3):12-16
Objective To predict the potential geographical distribution of Lamiophlomis rotata(Benth.)Kudo,a unique Tibetan medicinal plant endemic to the Tibetan Plateau,using a multi-model ensemble strategy;To analyze the key environmental driving factors of its suitable habitat.Methods Based on 163 distribution records of L.rotata collected through field surveys and database resources,and incorporating multi-dimensional environmental factors,including bioclimatic and topographic variables,an efficient ensemble prediction model was developed using the Biomod2 platform.The potential distribution of L.rotata on the Tibetan Plateau was simulated and predicted.Habitat suitability maps were generated using ArcGIS 10.3,and the main environmental factors influencing the distribution of L.rotata were analyzed.Results The ensemble model demonstrated outstanding predictive performance,with TSS and AUC values of 0.916 and 0.992,respectively,significantly outperforming all individual models included in the ensemble.Further analysis revealed that elevation,annual precipitation and temperature seasonality were the primary environmental factors influencing the distribution of L.rotata.The primary areas of high habitat suitability for L.rotata on the Tibetan Plateau are located at the borders of Qinghai,Tibet,Sichuan and Gansu provinces,covering an area of approximately 72.92×104 km2.Conclusion L.rotata exhibits unique adaptations to high-altitude and specific climatic conditions.The results of this study can provide valuable insights for the ecological conservation and rational utilization of its medicinal resources.The multi-model ensemble approach demonstrates significant advantages in improving the accuracy of species distribution predictions.
2.Prediction of the Potential Geographic Distribution of Tibetan Medicine Lamiophlomis rotata(Benth.)Kudo in the Qinghai-Xizang Plateau Based on Integrating Multiple Models
Guangzhen WAN ; Baoqiong WANG ; Lin JIN ; Juan CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(3):12-16
Objective To predict the potential geographical distribution of Lamiophlomis rotata(Benth.)Kudo,a unique Tibetan medicinal plant endemic to the Tibetan Plateau,using a multi-model ensemble strategy;To analyze the key environmental driving factors of its suitable habitat.Methods Based on 163 distribution records of L.rotata collected through field surveys and database resources,and incorporating multi-dimensional environmental factors,including bioclimatic and topographic variables,an efficient ensemble prediction model was developed using the Biomod2 platform.The potential distribution of L.rotata on the Tibetan Plateau was simulated and predicted.Habitat suitability maps were generated using ArcGIS 10.3,and the main environmental factors influencing the distribution of L.rotata were analyzed.Results The ensemble model demonstrated outstanding predictive performance,with TSS and AUC values of 0.916 and 0.992,respectively,significantly outperforming all individual models included in the ensemble.Further analysis revealed that elevation,annual precipitation and temperature seasonality were the primary environmental factors influencing the distribution of L.rotata.The primary areas of high habitat suitability for L.rotata on the Tibetan Plateau are located at the borders of Qinghai,Tibet,Sichuan and Gansu provinces,covering an area of approximately 72.92×104 km2.Conclusion L.rotata exhibits unique adaptations to high-altitude and specific climatic conditions.The results of this study can provide valuable insights for the ecological conservation and rational utilization of its medicinal resources.The multi-model ensemble approach demonstrates significant advantages in improving the accuracy of species distribution predictions.
3.Expert consensus on the deployment of DeepSeek in medical institutions
Yanlin CAO ; Jing WANG ; Yuxi LI ; Yi ZHANG ; Guangzhen ZHONG ; Ping SONG
Chinese Medical Ethics 2025;38(5):674-678
The Expert Consensus on the Deployment of DeepSeek in Medical Institutions serves as a detailed guideline for the deployment of DeepSeek in medical institutions. It was developed by experts in the fields of healthcare, hospital management, medical information, health policy, law, and medical ethics from nearly 30 leading domestic medical and academic research institutions, based on relevant domestic and international laws and regulations as well as the practices of medical institutions. It aims to provide medical institutions with a scientific, standardized, and secure deployment guideline to ensure that the application of artificial intelligence (AI) technologies in healthcare, including but not limited to DeepSeek, conforms to the unique characteristics of the healthcare industry and effectively promotes the improvement of medical service levels. From the three aspects of pre-deployment evaluation, deployment implementation, and post-deployment management and monitoring, the key factors that medical institutions should consider when introducing DeepSeek were elaborated in detail, including medical demand compatibility, technical capabilities and infrastructure, legal and ethical risks, data preparation and management, model selection and optimization, system integration and training, performance monitoring and continuous optimization, risk management and emergency response, as well as compliance review and evaluation. This provides a comprehensive deployment framework for medical institutions to ensure the safety and effectiveness of technology applications.
4.Advances in mechanisms of damage to cardiovascular system by exposure to micro-nano plastics
Guangzhen LU ; Xiaoting WANG ; Xinye WANG ; Hong ZHUANG ; Mengmeng CUI ; Gang ZHAO
Journal of Environmental and Occupational Medicine 2025;42(10):1260-1267
This review described the potential health threats to the cardiovascular system from micro-nano plastics (MNPs) and their multifaceted toxicity mechanisms. The article reviewed the environmental distribution of MNPs, exposure pathways, and their toxic effects on the cardiovascular system, and summarized the specific mechanisms of MNPs involving oxidative stress, inflammatory response, mitochondrial damage, apoptosis, pyroptosis, and autophagy dysregulation. Meanwhile, the combined toxic effects of MNPs with other environmental pollutants (e.g., heavy metals and polycyclic aromatic hydrocarbons), including synergistic, antagonistic, and dual effects, were analyzed, and the potential risks of MNPs as carriers of microorganisms and toxic chemicals were pointed out. The widespread presence of MNPs and their complex toxicity mechanisms may make them important triggers for cardiovascular diseases, but current research still suffers from unbalanced studies across environmental systems, incomplete understanding of plastic properties, and limited knowledge of long-term biological effects. Future research should focus on the long-term effects of MNPs, the joint toxicity mechanisms with other pollutants, and the differential effects across population subgroups. It is suggested to accelerate plastic recycling technology innovation, promote biodegradable materials, and optimize waste treatment process to mitigate the potential threat of MNPs pollution to human health. Through multidisciplinary collaboration and in-depth research, combining innovative concepts from toxicology, public health policy, and environmental science, it is expected to provide new methods and approaches for the prevention and treatment of cardiovascular diseases associated with MNPs.
5.Predictive Study on Suitable Habitats for Tibetan Medicinal Herb Aconiti Flavi et Penduli Radix in China Under Climate Change Based on the Biomod2 Ensemble Model
Guangzhen WAN ; Juan CHEN ; Congqing WANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(12):7-14
Objective To analyze the impact of climate change on the potential distribution patterns of the Tibetan medicinal resources Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.;To provide a scientific basis for the sustainable utilization of related medicinal plants on the Qinghai-Tibet Plateau.Methods Based on the Biomod2 ensemble model,integrating distribution data and multi-dimensional environmental factors for the Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.,the spatiotemporal dynamics and centroid migration trends of their potential suitable areas under current and four future shared socioeconomic pathways(SSP126,SSP245,SSP370,SSP585)were simulated.Results The ensemble model exhibited good prediction accuracy.The coefficient of variation of temperature seasonality(bio4)was identified as the dominant environmental factor influencing the distribution of both species.Aconitum pendulum Busch.demonstrated stronger dependence on the mean temperature of the coldest quarter(bio11),while Aconitum flavum Hand.-Mazz.was more influenced by the mean diurnal range(bio2)and precipitation of the driest month(bio14).Currently,the high suitable area for Aconitum pendulum Busch.is primarily located on the eastern edge of the Qinghai-Tibet Plateau,covering approximately 35.88×104 km2.The high suitable area for Aconitum flavum Hand.-Mazz.is centered in the eastern part of the plateau,spanning approximately 56.49×104 km2.Under future climate scenarios,significant changes in suitable area extent and centroid location were observed for both species.The high suitable area for Aconitum pendulum Busch.generally shrank,with its centroid migrating southeastward,whereas the high suitable area for Aconitum flavum Hand.-Mazz.showed an expanding trend,and its centroid shifted northwestward.Conclusion The findings reveal the key impact of climate change on the distribution evolution,migration and influencing factors of Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.,providing theoretical reference for the conservation planning,adaptive management,and sustainable utilization of medicinal plant resources in the Qinghai-Tibet Plateau region.
6.Studies on the role of iron death in paraquat-induced mesenchymalization of alveolar epithelial cells
Yiwei SU ; Wenxin FANG ; Shihao TANG ; Guangzhen LI ; Zhi WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(2):110-116
Objective:To investigate the role of iron death in paraquat (PQ) -induced alveolar epithelial mesangialization (EMT) .Methods:In August 2023, the appropriate PQ staining concentration as well as the intervention concentration of lipoinhibitor-1 (Lip-1) were screened by CCK8 method. The RLE-6TN cells were divided into three groups, which were control group, PQ group and iron death inhibition group, 200 μmol/L PQ solution was given to the PQ group, and PQ 200 μmol/L and 0.1 μmol/L Lip-1 solution was given to the iron death inhibition group, the control group was added the same amount of cell medium. morphological changes and migratory viability of the cells in each group were observed at 12 h, 24 h and 48 h after the poisoning, and the contents of ferrous ions (Fe 2+), reactive oxygen radicals (ROS), glutathione (GSH), superoxide dismutase (SOD), and malondialdehyde (MDA) were detected in each group; meanwhile, qRT-PCR and western-blot were used to determine the molecular expression of E-cadherin, α-smooth muscle actin (α-SMA), and Collagen I in the cells in each group. The difference between group was compared by ANOVA, and the further pairwise comparison was conducted by Bonferroni method. Results:Cell viability was detected using CCK8, and the results showed that the cell survival rate of RLE-6TN cells treated with 200 μmol/L PQ+0.1 μmol/L Lip-1 solution was 56.6%. The migration activity of RLE-6TN cells in the iron death inhibition group was weaker than that in the PQ group after 24 and 48 hours of exposure, and the degree of EMT changes in the cells was reduced compared to the PQ group. After 12, 24, and 48 hours of exposure, the Fe 2+ concentration, ROS fluorescence intensity, and MDA content in the iron death inhibition group decreased compared to the corresponding time points in the PQ group ( P<0.05/3), while compared with PQ group, the GSH concentration and SOD concentration increased compared to the corresponding time points in the PQ group ( P<0.05/3). The results showed that compared with the control group, the expression levels of E-cadherin mRNA and protein in PQ group and iron death inhibition group were both decreased ( P<0.05/3), while compared with PQ group, the expression levels of E-cadherin mRNA and protein in iron death inhibition group were increased ( P<0.05/3) ; Compared with the control group, the expression levels of α-SMA, Collagen I mRNA and protein in PQ group and iron death inhibition group cells increased ( P<0.05/3), while compared with PQ group, the expression levels of α-SMA, Collagen I mRNA and protein in iron death inhibition group cells decreased ( P<0.05/3) . Conclusion:Ferroptosis is involved in the EMT process of alveolar epithelial cells induced by PQ. Inhibiting ferroptosis can reduce cellular oxidative damage and alleviate the degree of cellular EMT.
7.Predictive Study on Suitable Habitats for Tibetan Medicinal Herb Aconiti Flavi et Penduli Radix in China Under Climate Change Based on the Biomod2 Ensemble Model
Guangzhen WAN ; Juan CHEN ; Congqing WANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(12):7-14
Objective To analyze the impact of climate change on the potential distribution patterns of the Tibetan medicinal resources Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.;To provide a scientific basis for the sustainable utilization of related medicinal plants on the Qinghai-Tibet Plateau.Methods Based on the Biomod2 ensemble model,integrating distribution data and multi-dimensional environmental factors for the Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.,the spatiotemporal dynamics and centroid migration trends of their potential suitable areas under current and four future shared socioeconomic pathways(SSP126,SSP245,SSP370,SSP585)were simulated.Results The ensemble model exhibited good prediction accuracy.The coefficient of variation of temperature seasonality(bio4)was identified as the dominant environmental factor influencing the distribution of both species.Aconitum pendulum Busch.demonstrated stronger dependence on the mean temperature of the coldest quarter(bio11),while Aconitum flavum Hand.-Mazz.was more influenced by the mean diurnal range(bio2)and precipitation of the driest month(bio14).Currently,the high suitable area for Aconitum pendulum Busch.is primarily located on the eastern edge of the Qinghai-Tibet Plateau,covering approximately 35.88×104 km2.The high suitable area for Aconitum flavum Hand.-Mazz.is centered in the eastern part of the plateau,spanning approximately 56.49×104 km2.Under future climate scenarios,significant changes in suitable area extent and centroid location were observed for both species.The high suitable area for Aconitum pendulum Busch.generally shrank,with its centroid migrating southeastward,whereas the high suitable area for Aconitum flavum Hand.-Mazz.showed an expanding trend,and its centroid shifted northwestward.Conclusion The findings reveal the key impact of climate change on the distribution evolution,migration and influencing factors of Aconitum pendulum Busch.and Aconitum flavum Hand.-Mazz.,providing theoretical reference for the conservation planning,adaptive management,and sustainable utilization of medicinal plant resources in the Qinghai-Tibet Plateau region.
8.Studies on the role of iron death in paraquat-induced mesenchymalization of alveolar epithelial cells
Yiwei SU ; Wenxin FANG ; Shihao TANG ; Guangzhen LI ; Zhi WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(2):110-116
Objective:To investigate the role of iron death in paraquat (PQ) -induced alveolar epithelial mesangialization (EMT) .Methods:In August 2023, the appropriate PQ staining concentration as well as the intervention concentration of lipoinhibitor-1 (Lip-1) were screened by CCK8 method. The RLE-6TN cells were divided into three groups, which were control group, PQ group and iron death inhibition group, 200 μmol/L PQ solution was given to the PQ group, and PQ 200 μmol/L and 0.1 μmol/L Lip-1 solution was given to the iron death inhibition group, the control group was added the same amount of cell medium. morphological changes and migratory viability of the cells in each group were observed at 12 h, 24 h and 48 h after the poisoning, and the contents of ferrous ions (Fe 2+), reactive oxygen radicals (ROS), glutathione (GSH), superoxide dismutase (SOD), and malondialdehyde (MDA) were detected in each group; meanwhile, qRT-PCR and western-blot were used to determine the molecular expression of E-cadherin, α-smooth muscle actin (α-SMA), and Collagen I in the cells in each group. The difference between group was compared by ANOVA, and the further pairwise comparison was conducted by Bonferroni method. Results:Cell viability was detected using CCK8, and the results showed that the cell survival rate of RLE-6TN cells treated with 200 μmol/L PQ+0.1 μmol/L Lip-1 solution was 56.6%. The migration activity of RLE-6TN cells in the iron death inhibition group was weaker than that in the PQ group after 24 and 48 hours of exposure, and the degree of EMT changes in the cells was reduced compared to the PQ group. After 12, 24, and 48 hours of exposure, the Fe 2+ concentration, ROS fluorescence intensity, and MDA content in the iron death inhibition group decreased compared to the corresponding time points in the PQ group ( P<0.05/3), while compared with PQ group, the GSH concentration and SOD concentration increased compared to the corresponding time points in the PQ group ( P<0.05/3). The results showed that compared with the control group, the expression levels of E-cadherin mRNA and protein in PQ group and iron death inhibition group were both decreased ( P<0.05/3), while compared with PQ group, the expression levels of E-cadherin mRNA and protein in iron death inhibition group were increased ( P<0.05/3) ; Compared with the control group, the expression levels of α-SMA, Collagen I mRNA and protein in PQ group and iron death inhibition group cells increased ( P<0.05/3), while compared with PQ group, the expression levels of α-SMA, Collagen I mRNA and protein in iron death inhibition group cells decreased ( P<0.05/3) . Conclusion:Ferroptosis is involved in the EMT process of alveolar epithelial cells induced by PQ. Inhibiting ferroptosis can reduce cellular oxidative damage and alleviate the degree of cellular EMT.
9.The effects of emotion management training on cognitive coping strategies, mental health, and social support among patients with coronary heart disease
Mengyin CHENG ; Guangzhen HU ; Ruixing ZHANG ; Mengjia WANG ; Mingyu CHANG
Chinese Journal of Behavioral Medicine and Brain Science 2024;33(2):140-146
Objective:To design a systematic emotion management training (EMT) targeted the characteristics of coping strategies based on rehabilitation assistant and explore the feasibility of online EMT in improving cognitive coping strategies, mental health, and social support of patients with coronary heart disease(CHD).Methods:From June 2021 to December 2022, a total of 106 CHD patients were screened from cardiovascular units of a hospital in Zhengzhou. All participants were divided into the intervention group ( n=53) and control group ( n=53) using the coin toss method. The patients in intervention group received 7 weeks emotion management training on the basis of routine health education, the patients in control group received 7 weeks routine health education. The scores of cognitive coping strategies, anxiety, depression, and social support were measured at baseline and post-intervention. Statistical analysis was conducted using SPSS 24.0 software.The cognitive coping strategies, mental health and social support scores between two groups were compared using independent sample t-tests or paired t-test. Pearson analysis was used to examine the correlation between cognitive coping strategies, mental health and social support. Results:The scores of adaptive coping strategies, maladaptive coping strategies, depression, anxiety, insomnia and social support in patients with CHD were (69.52±7.60), (35.22±6.15), (8.82±2.66), (8.78±1.99), (10.97±2.86), and (57.48±9.79), respectively. After intervention, the scores of maladaptive coping strategies, self-blame, rumination, catastrophizing, blaming others, putting into perspective, insomnia, anxiety, and depression in the intervention group were significantly lower than those in the control group( t=-7.742, -4.395, -4.781, -6.105, -6.256, -5.327, -6.017, -7.288, -7.749, all P<0.05). The scores of adaptive coping strategies, positive reappraisal, refocusing on planning and social support were significantly higher than those of the control group( t=7.314, 6.733, 5.874, 3.562, all P<0.05). In the intervention group, there were statistically significant differences in cognitive coping strategies, anxiety, depression, insomnia and social support scores before and after the test(all P<0.05) and they were not statistically significantly different in the control group(all P>0.05). Correlation analysis showed that maladaptive coping strategies were positively correlated with depression and anxiety scores ( r=0.421, 0.408, both P<0.05). Adaptive coping strategies were negatively correlated with depression and insomnia scores ( r=-0.225, -0.240, both P<0.05), and positively correlated with social support ( r=0.219, P=0.034) among patients with CHD. Conclusion:The online EMT based on rehabilitation assistant may be a useful intervention for patients with CHD which can promote psychological health, social support as well as positively transforming maladaptive coping strategies into adaptive coping strategies.
10.Role of CTGF and PI3K/Akt signaling pathway in paraquat-induced mesenchymal changes in alveolar epithelial cells
Yiwei SU ; Guangzhen LI ; Wenxin FANG ; Jinwei ZHANG ; Yimin LIU ; Zhi WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(6):401-407
Objective:To investigate the role of connective tissue growth factor (CTGF) and PI3K/Akt signaling pathways in paraquat (PQ) -induced alterations in alveolar epithelial cell mesenchymalization (EMT) .Methods:In February 2023, RLE-6TN cells were divided into 2 groups, which were set as uncontaminated group and contaminated group (200 μmol/L PQ), and cellular EMT alteration, CTGF and PI3K/Akt signaling pathway related molecules expression were detected by cell scratch assay, qRT-PCR and western-blot assay. Using shRNA interference technology to specifically inhibit the expression of CTGF, RLE-6TN cells were divided into four groups: control group, PQ group (200 μmol/L PQ), interference group (transfected with a plasmid with shRNA-CTGF+200 μmol/L PQ), and null-loaded group (transfected with a plasmid with scramble- CTGF+200 μmol/L PQ), qRT-PCR and western blot were used to examine the alteration of the cellular EMT and the expression of molecules related to the activity of PI3K/Akt pathway. The PI3K/Akt signaling pathway was blocked by the PI3K inhibitor LY294002, and the expression of EMT-related molecules in cells of the control group, PQ group (200 μmol/L PQ), and inhibitor group (200 μmol/L PQ+20 μmol/L LY294002) was examined by qRT-PCR and western blot.The t-test was used to compare the differences between the two groups, while the analysis of variance (ANOVA) was applied to compare the differences among multiple groups. For further pairwise comparisons, the Bonferroni method was adopted.Results:The results of cell scratch test showed that compared with the uncontaminated group, RLE-6TN cells in the contaminated group had faster migration rate, lower mRNA and protein expression levels of E-Cadherin, and higher mRNA and protein expression levels of α-SMA, CTGF, PI3K and Akt, with statistical significance ( P<0.05). After specific inhibition of CTGF expression, the mRNA and protein expression of CTGF, PI3K, Akt, and α-SMA in the cells of the interference group were significantly lower than that of the PQ group and the null-loaded group ( P<0.05/6), whereas that of E-Cadherin was higher than that of the PQ group and the null-loaded group ( P<0.05/6). Specifically blocking the PI3K/Akt signaling pathway, the mRNA and protein expression of PI3K, Akt and α-SMA in the cells of the inhibitor group was decreased compared with that of the PQ group ( P<0.05/3), while the expression of E-Cadherin was elevated compared with that of the PQ group ( P<0.05/3) . Conclusion:CTGF may promote PQ-induced alveolar epithelial cell EMT through activation of the PI3K/Akt signaling pathway. Inhibition of CTGF expression or blockade of PI3K/Akt signaling pathway activity can alleviate the extent of PQ-induced alveolar epithelial cell EMT.

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