1.Effect of transcranial magneto-acousto-electrical stimulation on the plasticity of the prefrontal cortex network in mice
Shuai ZHANG ; Zichun LI ; Yihao XU ; Xiaofeng XIE ; Zhongsheng GUO ; Qingyang ZHAO
Chinese Journal of Tissue Engineering Research 2025;29(6):1108-1117
BACKGROUND:Transcranial magneto-acoustic-electrical stimulation is a novel non-invasive neural regulation technique that utilizes the induced electric field generated by the coupling effect of ultrasound and static magnetic field to regulate the discharge activity of the nervous system.However,the mechanism by which it affects synaptic plasticity in the brain is still not enough. OBJECTIVE:To explore the effect of transcranial magneto-acoustic-electrical stimulation intensity on synaptic plasticity of the prefrontal cortex neural network in mice. METHODS:(1)Animal experiment:Twenty-four C57 mice were equally and randomly divided into four groups:the control group receiving pseudo-stimulation,the 6.35 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,6.35 W/cm2,the 17.36 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,17.36 W/cm2,and the 56.25 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,56.25 W/cm2.The local field potential signals and behavioral correctness were recorded during the execution of T-maze in mice.(2)Modeling and simulation experiments:A neural network model of the prefrontal cortex in mice stimulated by transcranial magneto-acoustic-electrical stimulation was constructed to compare the structural connectivity characteristics of the neural network under different stimulation intensities. RESULTS AND CONCLUSION:Transcranial magneto-acoustic-electrical stimulation could effectively shorten the behavior learning time,improve the working memory ability of mice(P<0.05),and continue to stimulate the frontal lobe of mice after learning behavior.There was no significant difference in the accuracy of the T-maze behavioral experiment among the experimental groups(P>0.1).Analysis of local field potential signals in the frontal lobe of mice revealed that transcranial magneto-acoustic-electrical stimulation promoted energy enhancement of β and γ rhythms.As the stimulation intensity increased,there was an asynchronous decrease in β and γ rhythms.Through β-γ phase amplitude coupling,it was found that stimuli could enhance the neural network's ability to adapt to new information and task requirements.Modeling and simulation experiments found that stimulation could enhance the discharge level of the neural network,increase the long-term synaptic weight level,and decrease the short-term synaptic weight level only when the stimulation intensity was high.To conclude,there is a complex nonlinear relationship between different stimulus intensities and the functional structure of neural networks.This neural regulation technique may provide new possibilities for the treatment of related neurological diseases such as synaptic dysfunction and neural network abnormalities.
2.The role of DNA methylation detection in the early diagnosis and prognosis of lung cancer
Xinwen ZHANG ; Shixuan PENG ; Qing YANG ; Jiating ZHOU ; Xuan ZHANG ; Zilan XIE ; Mengle LONG ; Qingyang WEN ; Yi HE ; Zhi LI ; Yongjun WU
Chinese Journal of Laboratory Medicine 2024;47(4):371-378
Lung cancer is the leading type of cancer death, and most patients with lung cancer are diagnosed at an advanced stage and have a very poor prognosis. Although low-dose computed tomography (LDCT) has entered the clinic as a screening tool for lung cancer, its false-positive rate is more than 90%. As one of the epigenetic modifications of research hotspots, DNA methylation plays a key role in a variety of diseases, including cancer.Hypermethylation of tumor suppressor genes and hypomethylation of proto-oncogenes are important events in tumorigenesis and development. Therefore, DNA methylation analysis can provide some useful information for the early screening, diagnosis, treatment and prognosis of lung cancer. Although invasive methods such as tissue biopsy remain the gold standard for tumor diagnosis and monitoring, they also have limitations such as inconvenience in sampling. In recent years, there has been a rapid development of liquid biopsy, which can detect primary or metastatic malignancies and reflect the heterogeneity of tumors. In addition, the blood sample can be collected in a minimally invasive or non-invasive format and is well tolerated in older and frail patients. This article explores some of the emerging technologies for DNA methylation analysis and provides an overview of the application of DNA methylation in the diagnosis and treatment of lung cancer.
3.Curative Effect Observation of Burosumab for Children and Adults with X-Linked Hypophosphatemicrickets
Qingyang LIU ; Zijing HOU ; Zixia YANG ; Xin LIU ; Bo ZHANG ; Yan TANG
JOURNAL OF RARE DISEASES 2024;3(1):108-113
We studied the patients diagnosed with X-linked hypophosphatemicrickets(XLH) and treated with burosumab in Peking Union Medical College Hospital from January 2021 to December 2022. In addition, we described the clinical characteristics of the patients, the changes of clinical indexes before and after burosumab treatment, and the adverse drug reactions during treatment. We also evaluated the efficacy and safety of burosumab for XLH. The results showed that three children XLH patients and one adult XLH patients received burosumab treatment. After treatment, the serum phosphorus level of all patients increased; the serum phosphorus of 3 children patients increased above the lower limit of the reference value range; the serum alkaline phosphatase(ALP) of all patients was lower than that of before treatment; the serum ALP of one adult patient was close to the normal range after 2.5 years of treatment. One child patient showed small crystals in kidney through ultrasound 48 weeks after treatment; one child and one adult showed increased serum parathyroid hormone(PTH)level before treatment and serum PTH continued increasing after treatment. Finally, it may be concluded that burosumab increased serum phosphorus levels in XLH patients, kept the level relatively stable, and reduced serum ALP levels. No serious adverse reactions occurred during treatment, in order to provide reference for the use of burosumab in patients with XLH.
4.Effects of ligustilide on chemotherapy resistance of cervical cancer cells
Wenyuan ZHANG ; Qian WANG ; Lihong ZHANG ; Haiyan ZHOU ; Ni ZHANG
China Pharmacy 2024;35(13):1582-1587
OBJECTIVE To investigate the effects of ligustilide on chemotherapy resistance of cervical cancer cells based on Hippo-Yes-associated protein (YAP) signaling pathway. METHODS Human cervical cancer cisplatin-resistant cells HeLa/DDP were divided into control group, cisplatin group (10 μmol/L cisplatin), cisplatin+ligustilide low-, medium- and high-concentration groups (10 μmol/L cisplatin+25, 50, 100 μmol/L ligustilide). The proliferation, apoptosis, migration and invasion of HeLa/DDP cells were all detected in each group. The mRNA expressions of YAP and transcriptional coactivator with PDZ binding motif (TAZ) as well as the protein expressions of YAP, TAZ, matrix metalloproteinase 2 (MMP2), Ki67, cleaved-caspase-3 and caspase-3 were determined in HeLa/DDP cells. RESULTS Compared with control group, the inhibitory rate, apoptotic rate and cleaved- caspase-3/caspase-3 of cisplatin group were increased significantly; scratch healing rate, the number of invasive cells, the mRNA expressions of YAP and TAZ, and the protein expressions of YAP, TAZ, MMP2 and Ki67 were decreased significantly in cisplatin group (P<0.05). Compared with cisplatin group, the inhibitory rate of cell proliferation, apoptotic rate and cleaved-caspase-3/ caspase-3 were further increased in cisplatin+ligustilide low-, medium- and high-concentration groups, while scratch healing rate, the number of invasive cells, the mRNA expressions of YAP and TAZ, and the protein expressions of YAP, TAZ, MMP2 and Ki67 were further decreased, in a dose-dependent manner (P<0.05). CONCLUSIONS Ligustilide can increase the sensitivity of drug-resistant cervical cancer cells to cisplatin by inhibiting Hippo-YAP signaling pathway.
5.Study on Drug List and Accessibility of Rare Diseases Based on the China's Second List of Rare Diseases
Qingyang LIU ; Xin LIU ; Wei ZUO ; Shaohong WANG ; Bo ZHANG ; Shuyang ZHANG
JOURNAL OF RARE DISEASES 2024;3(2):195-201
Objective This study aims to sort out the rare disease drugs in the China's Second List of Rare Diseases,to provide reference for the management of rare disease drug treatment.Methods Up to December 31,2023,based on the China's Second List of Rare Diseases,we sorted out the drugs approved in China with the drug label,or approved by the U.S.Food and Drug Administration(FDA)and the European Medicines Agency(EMA)for the treatment of the above diseases,and developed the second batch of rare dis-ease drug catalog in China.The accessibility,localization and coverage of the national medical insurance were also analyzed.Results From the point of view of diseases,a total of 37 diseases in the China's Second List of Rare Diseases have drug indications approved in China,and 10 diseases have drugs listed by the U.S.FDA/EMA and approved in China,but for off-label use.From the point of view of drugs,there are 55 drug indications ap-proved for the treatment of the China's Second List of Rare Diseases,and 22 drugs listed in the U.S.FDA/EMA and approved in the China,but for off-label use.Among the above-mentioned drugs with domestic approved rare disease indications or approved numbers,39 drugs have at least one domestic approval number for a dosage form,covering 30 rare diseases;37 drugs used for at least one rare disease are included in the national medical insur-ance catalog and are covered by reimbursement,covering 29 rare diseases.Conclusions The list of rare disease drugs in the China's Second List of Rare Diseases was established.The number of rare disease drugs and covered diseases approved by China and the U.S.FDA/EMA has increased,and the number of rare disease drugs and covered diseases that are localized and included in the medical insurance catalog has also continued to increase.
6.Overview and Analysis of Rare Disease Drugs Approved for Market in China,the United States,the European Union,and Japan in 2023
Shaohong WANG ; Xin LIU ; Qingyang LIU ; Yan TANG ; Bo ZHANG
JOURNAL OF RARE DISEASES 2024;3(2):202-213
Objective To summarize and analyze what the listing in market of orphan drugs in China,the United States,the European Union,and Japan in 2023,and to provide empirical reference to Chinese phar-maceutical enterprises,pharmaceutical management,and new drug research and development departments.Methods Collect the 2023 drug market data released by official drug regulatory agencies in four countries and international organization-China,the United States,the European Union,and Japan categorize the market of rare disease drugs and and their indications,approval dates,R&D status in China,component therapeutic are-as,and special review and approval pathways were analyzed.Results Findings in 2023,28 orphan drugs were listed in the United States,mostly anti-tumor related,accounting for 32.1%(9 out of 28);17 orphan drugs were listed in the European Union,anti-tumor related accounting for 47.0%(8 of 17);22 listed in Japan;and 45 listed in China.In 2023,over 70%orphan drugs listed in the European Union and Japan entered the phase of clinical trials/marketing and applications/approved clinical applications in China(86.4%from Japan and 70.6%from European Union).Conclusions Currently,there is no qualification accreditation mechanism for orphan drugs in China.However,in 2023,the number of rare disease drugs listed in China was the greatest among the four countries/international organization.It reflects that China's Catalog for Rare Diseases played a guiding role in drug research and development.Meanwhile,the reform of drug approval and review in China and the issue of rare disease catalogs took place in a short period of time,so the review and approval,as well as re-search and development of rare disease drugs are still in the catching up stage.
7.Best evidence summary of cognitive training in breast cancer patients with chemotherapy-related cognitive impairment
Huaiyu BAI ; Qingyang LI ; Ru BAI ; Lingjie XU ; Ping YE ; Shuoshuo LI ; Jing ZHANG
Chinese Journal of Practical Nursing 2024;40(16):1236-1243
Objective:To summarize the evidence of cognitive training in breast cancer patients with chemotherapy-related cognitive impairment, so as to provide evidence-based evidence for clinical decision-making and practice.Methods:The literature about the relevant cognitive training in breast cancer patients with chemotherapy-related cognitive impairment were searched for CNKI, VIP database, Wanfang, SinoMed, PubMed, Web of Science, CINAHL, Embase, Cochrane Library, JBI as well as home and abroad official website of relevant professional institutes, including clinical decisions, guidelines, evidence summaries, systematic reviews, best practice information manuals, expert consensuses, and high-quality original studies. The literature retrieval period was from the database construction to March 1, 2023. Two researchers screened and evaluated the quality of the included literature, and extracted, generalized and summarized evidence according to the topic.Results:A total of 17 articles were involved, including 3 clinical decisions, 4 guidelines, 2 evidence summaries, and 8 systematic reviews. Finally, 6 evidence topics and 25 pieces of best evidences were formed, including screening and evaluation, training principles, training time, training place, training content, training effect.Conclusions:Cognitive training can effectively improve cognitive function in breast cancer patients with chemotherapy-related cognitive impairment. Medical staff should carefully select the best evidence, early screen and dynamically evaluate the cognitive changes of patients, follow the principle of step by step and dynamic adjustment, and carry out individualized cognitive training as soon as possible according to the treatment cycle and patients wishes, so as to prevent or delay chemotherapy-related cognitive impairment and improve the quality of life of patients.
8.Exploration of the Application of Blockchain Technology in the Future Medical Service System
Huan WANG ; Tao LIU ; Jing WANG ; Yanan GAO ; Xin LI ; Liyuan HU ; Zihang FENG ; Zhiyong ZHAO ; Qingyang HUANG ; Quanyu MENG ; Xiaojuan ZHANG ; Hexuan CUI ; Tianming CHEN
Journal of Medical Informatics 2024;45(11):91-94,103
Purpose/Significance To explore the feasibility of applying blockchain technology to the current healthcare system of hos-pitals,and to achieve the purpose of protecting patients'privacy to the greatest extent possible at a lower cost.Method/Process 505 questionnaires are randomly distributed and collected from people of different age groups in Beijing,Tianjin,Shanghai and Shenzhen who have a certain degree of understanding of blockchain technology,and the results are analyzed.Result/Conclusion Different age groups are highly concerned about personal privacy and privacy protection,and are willing to accept blockchain as an emerging technology.There is a greater demand and acceptance for the application of blockchain technology in the primary health care systems.
9.Co-word cluster analysis of research hotspots at home and abroad on self-management of patients with chronic obstructive pulmonary disease from 2013 to 2023
Zhongtao ZHOU ; Qingyang LI ; Shuoshuo LI ; Runqiu WANG ; Huaiyu BAI ; Ao JIANG ; Jing ZHANG
Chinese Journal of Modern Nursing 2024;30(1):77-82
Objective:To analyze the research hotspots of self-management in patients with chronic obstructive pulmonary disease (COPD) at home and abroad.Methods:Related literature on self-management of COPD patients were searched in China National Knowledge Infrastructure and Web of Science databases, and the searched period was from January 1, 2013 to June 30, 2023. CiteSpace 5.8 software was used for keyword cluster analysis.Results:A total of 641 articles in Chinese and 1 192 in English were obtained. Domestic research hotspots about self-management of COPD patients mainly focused on health education, continuing care, rehabilitation care, etc. Foreign research hotspots about self-management of COPD patients mainly focused on mobile health, telemedicine and so on.Conclusions:This paper analyzes the research hotspots of self-management of COPD patients at home and abroad and provides reference for future research on self-management of COPD patients.
10.Best evidence summary for non-pharmacological management of sleep disorders in breast cancer patients undergoing chemotherapy
Qingyang LI ; Huaiyu BAI ; Zhongtao ZHOU ; Shuoshuo LI ; Ru BAI ; Jing ZHANG
Chinese Journal of Modern Nursing 2024;30(5):561-568
Objective:To retrieve, evaluate, and summarize the best domestic and international evidence on non-pharmacological management of sleep disorders in breast cancer patients undergoing chemotherapy, providing evidence-based guidance for healthcare professionals to conduct standardized assessment and management of sleep disorders in these patients.Methods:Clinical questions were translated into evidence-based questions using the PIPOST model. A systematic search of domestic and international databases and professional association websites was conducted for literature related to non-pharmacological management of sleep disorders in breast cancer patients undergoing chemotherapy, including clinical decisions, evidence summaries, guidelines, and systematic reviews. The search covered publications up to December 17, 2022. Two researchers trained in evidence-based nursing independently completed the quality assessment, evidence extraction, and summary of the included literature.Results:A total of 16 publications were included, comprising two clinical decisions, one evidence summary, five guidelines, six systematic reviews, and two randomized controlled studies. The best evidence was summarized from seven aspects: multidisciplinary collaboration, identification of risk factors, assessment and monitoring, referral, psychological behavioral interventions, exercise management, and complementary therapies, resulting in 25 key recommendations.Conclusions:This study summarizes the current best evidence for non-pharmacological management of sleep disorders in breast cancer patients undergoing chemotherapy. Healthcare professionals can follow these best evidence practices to standardize the assessment of patient sleep disorder symptoms and choose appropriate intervention plans based on clinical context and patient preferences, thereby improving patient sleep quality.

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