摘要
Pulmonary hypertension(PH)is the pulmonary vascular remodeling caused by endothe-lial dysfunction and other factors,which leads to the increase of pulmonary artery pressure and finally right heart failure and patient death.Medications can significantly improve the symptoms of patients with pulmonary hypertension,but drugs can't cure vascular remodeling and right heart failure once for all,so it is urgent to find new treatments.Endothelial cells can obtain mesenchymal phenotypes after hypoxia stimulation,that is,endothelial-to-mesenchymal transition(EndMT).Increasing studies have shown that EndMT plays an important role in pulmonary vascular remodeling of PH.In this review,three signaling pathways related to induction of endothelial-to-mesenchymal transition under hypoxic conditions and research progress in related drugs are elaborated:① Transforming growth factor-β/bone morphogenetic protein(TGF-β/BMP)signaling pathway.The TGF-β/BMP pathway is mediated by Smad,and hypoxia regulates the expressions of EndMT-related genes by inhibiting or inducing the phosphorylation level of Smad in the downstream medium.② Notch signaling pathway.Hypoxia can enhance Jagged/Notch signaling pathway and promote the EndMT process.③Wnt/β-catenin signaling pathway.Hypoxia increases the expression of β-catenin,activates the Wnt signaling pathway,and regulates the expressions of EndMT regulatory genes.The significance of hypoxia-induced EndMT as an impor-tant pathogenic factor in PH is clarified in order to provide new ideas for the improvement of pulmonary vascular remodeling and recommend new effective strategies for the prevention and treatment of PH.
摘要
Objective To understand the research status,hotspots and trends of Wuzhuyu Decoction;To provide reference for relevant research.Methods The literature related to Wuzhuyu Decoction was retrieved from CNKI,VIP,Wanfang Data and CBM databases from the establishment to February 28,2023.NoteExpress 3.6 was used to merge and deduplicate,and the author,organization and keywords were mapped and interpreted by CiteSpace 6.1.R6 software.Results A total of 822 articles were included,and the number of publications showed a wave upward trend;the top journals were New Chinese Medicine,Henan Traditional Chinese Medicine and Sichuan Traditional Chinese Medicine;the main research institutions were Beijing University of Chinese Medicine,China Academy of Chinese Medical Sciences and Shandong University of Traditional Chinese Medicine;a total of 566 authors were involved,and the authors with more publications included Wang Zhimin(12),Gong Muxin(9)and Bi Kaishun(5);high-frequency keywords included"headache","Shang Han Lun","TCM therapy"and so on.Conclusion Wuzhuyu Decoction is effective in treating chronic gastritis,hypertension and other primary diseases,which is a research hotspot in this field.It is a research trend in this field to explore its active components by high performance liquid chromatography and explain its action mechanism and target at the molecular level.
摘要
Objective To understand the research status,hotspots and trends of animal medicinal materials;To provide reference for future research.Methods The literature related to animal medicinal materials was retrieved from CNKI,VIP,Wanfang Data and CBM from January 1,2000 to April 30,2023.NoteExpress 3.6 was used to merge and deduplicate,and the author,institution and keywords were mapped and interpreted by CiteSpace 6.1.R6 software.Results A total of 1 169 articles were included,and the overall publication quantity in this field showed a stable fluctuation trend;the top journals were Lishizhen Medicine and Materia Medica Research,China Journal of Chinese Materia Medica and Modern Chinese Medicine;the main research institutions were China Academy of Chinese Medical Sciences,Changchun University of Chinese Medicine and Chinese Academy of Medical Sciences;a total of 676 authors were involved,and the authors with more publications included Zhang Hui(22),Liu Rui(15),Lin Zhe and Ma Shuangcheng(14);high-frequency keywords included"identification","TCM resources","clinical application"and so on.Conclusion Resource survey of animal medicinal materials,standardized breeding of medicinal animals,development of alternatives to rare medicinal animal resources,and construction of quality standard system for animal medicinal materials are the research hotspots in this field.The basic research of pharmacodynamic substances of animal medicinal materials based on the integrated analysis strategies of proteomics,peptideomics and transcriptomics,and the revelation of the signaling pathways and targets of animal medicinal materials from the molecular biology level are the research trends in this field.
摘要
Objective:To understand the cognition and attitude of medical staff towards medical ethics review, analyze possible influencing factors, to put forward relevant suggestions for strengthening ethical management in the future.Methods:From November 2021 to May 2022, a self-designed questionnaire and general data questionnaire on the cognition and attitude of medical staff to ethical issues in clinical research were used to investigate 408 medical staff from two first-class ternary hospitals in Hunan Province, data was analyzed to explore the respondents′ cognition and attitude, as well as related influence factors.Results:The average cognitive score of medical staff was 65.41, and the average attitude score was 91.83. Many possible influence actors regarding the cognition were identified, including degree, technical title, professional field, number of clinical research projects engaged as investigators, number of clinical research projects conducted as principle investigators, whether the hospital has established an ethics committee, and research ethics training experiences. While the influence factors of attitude were experiences of conducting and engaging in clinical research, the construction of hospital ethics committee and research ethics trainings.Conclusions:Medical staffs have the willingness to explore more research ethics knowledge, while their cognition of research ethics should be improved. Root-cause analysis should be conducted to identify influencing factors for improvement. The research management department should strengthen the publicity and training of clinical research ethics of medical staff, to improve their clinical research ethics knowledge literacy, and ensure the well-functioning of clinical research ethics review.
摘要
In recent years, the continuous updating of medical means and the rapid development of assisted reproductive technology provide an effective way for cancer patients to preserve and restore fertility, but it still face many challenges in the specific application process. In view of the status quo of fertility preservation of cancer patients at home and abroad, factors affecting fertility of cancer patients such as radiotherapy, chemotherapy and surgery, and common fertility preservation methods of cancer patients such as embryos, oocytes, sperm cryopreservation, ovarian transplantation and other technologies, this paper considered related ethical issues from the following aspects: following the informed consent of cancer patients, executing the relevant laws and regulations on fertility preservation of cancer patients, and implementing the whole process supervision of the ethics committee, so as to provide ideas for the follow-up research on fertility preservation of cancer patients.