1.Efficacy comparison of goniosynechialysis versus trabeculectomy combined with phacoemulsification in the treatment of glaucoma complicated with cataract
Zhentong LIU ; Nannan TIAN ; Xiangci MENG ; Yan ZHANG
International Eye Science 2026;26(3):405-409
AIM: To compare the clinical efficacy of goniosynechialysis versus trabeculectomy combined with cataract phacoemulsification in treating glaucoma complicated with cataract.METHODS:From January 2019 to January 2024, patients with glaucoma complicated with cataract diagnosed in our hospital were included as the study subjects. They were assigned into trabeculectomy group and goniosynechialysis group based on different surgical methods. The trabeculectomy group was treated with cataract phacoemulsification combined with trabeculectomy, while the goniosynechialysis group was treated with cataract phacoemulsification combined with goniosynechialysis. The improvement of visual acuity, anterior chamber depth, chamber angle width, intraocular pressure, whole en face vessel density within the optic disc head and in the peripapillary region, and complications were compared between two groups.RESULTS: A total of 120 patients(120 eyes)with glaucoma combined with cataract were included in this study, among which 60 eyes were in the trabeculectomy group and 60 eyes in the goniosynechialysis group. The age of the trabeculectomy group was 60.72±6.16 years, including 28 males and 32 females. The age of the goniosynechialysis group was 61.04±6.24 years, including 31 males and 29 females. At 3 mo after surgery, the visual acuity of patients in both groups improved significantly, and the improvement of visual acuity in the goniosynechialysis group was significantly better than that in the trabeculectomy group(all P<0.01). At 3 mo after surgery, the anterior chamber depth and chamber angle width of patients in both groups were higher than those before surgery, and with the goniosynechialysis group being higher than the trabeculectomy group(all P<0.01), while the intraocular pressure was lower than that before surgery, and with the goniosynechialysis group being lower than the trabeculectomy group(all P<0.01). Before surgery, there was no significant difference in the whole en face vessel density within the optic disc head between the two groups(P>0.05), however, the whole en face vessel density within the optic disc head in both groups on 1 d after surgery were significantly lower than before surgery(all P<0.05); and compared with 1 d after surgery, there was a significant increase at 1 wk, 1, and 3 mo after surgery(all P<0.05); the whole en face vessel density within the optic disc head in the goniosynechialysis group was significantly higher than that in the trabeculectomy group at various time points after surgery(all P<0.05). However, there was no significant difference in the whole en face vessel density in the peripapillary region between the two groups before surgery and various time points after surgery(all P>0.05). Within 3 mo after surgery, the incidence of complications in the goniosynechialysis group(8.3%)was significantly lower than that in the trabeculectomy group(21.7%; P<0.05).CONCLUSION:Goniosynechialysis combined with phacoemulsification is more effective than trabeculectomy combined with phacoemulsification in the treatment of patients with glaucoma complicated with cataract in improving the visual acuity and whole en face vessel density within the optic disc head of patients, increasing the anterior chamber depth and chamber angle width, reducing intraocular pressure and the risk of complications. It has high safety and ideal short-term efficacy.
2.A systematic review on the integrated application of evidence-based narrative education and undergraduate nursing teaching
Nannan BAI ; Meng LI ; Qian LIANG ; Chou YAO ; Yan WANG ; Ju HAN ; Chenyang HOU ; Nana XING
Chinese Medical Ethics 2026;39(2):229-237
ObjectiveTo systematically evaluate the application of narrative education in undergraduate nursing teaching, to understand the current application status of narrative education, and to provide a theoretical basis for the subsequent establishment of a sound narrative education system. MethodsA systematic search was conducted for studies published in Chinese and English databases on applying narrative education to undergraduate nursing teaching, with the search period ranging from database inception to February 23, 2025. Literature was screened, and relevant information was extracted. A rigorous quality evaluation was conducted on the included studies, and a descriptive analysis was performed on their content. ResultsA total of 20 papers were included, involving 3,180 research subjects, all of whom were undergraduate nursing students. The results of descriptive analysis showed that the teaching model of narrative education primarily encompassed reading narrative works, watching films and videos, performing narrative scenarios, and writing reflective journals. The course setting and content covered pre-teaching preparation and in-teaching implementation. The evaluation of teaching effectiveness included the evaluation of teachers’ teaching methods (student evaluation/self-evaluation) and the evaluation of students’ learning effectiveness (course grade evaluation/humanistic care scale/empathy scale assessment, and others). ConclusionNarrative education combines abstract concepts with concrete clinical situations, which not only enriches students’ learning experiences but also enhances their humanistic literacy. Meanwhile, it provides teachers with opportunities to develop their narrative teaching skills, which requires them to possess profound professional knowledge and employ narrative techniques to guide students in reflection and critical thinking, thereby improving teaching quality and learning outcomes. Future efforts should consistently deepen the connotation research of narrative education and build a systematic nursing education system.
3.Ethical examination of artificial intelligence application in Alzheimer’s disease imaging diagnosis
Chinese Medical Ethics 2025;38(2):179-186
Alzheimer’s disease is a progressive, fatal, and neurodegenerative disease, clinically characterized by gradually developed cognitive and memory function decline, language and visuospatial disorders, and other aspects. It remains incurable and irreversible to date. In clinical settings, Alzheimer’s disease usually faces the possibility of untimely diagnosis, causing difficulties in the early intervention of the disease. Thus, it is essential to improve diagnostic efficiency and help patients diagnose Alzheimer’s disease as early as possible. With the continuous development of artificial intelligence (AI) technology, its application in Alzheimer’s disease imaging diagnosis has shown great potential. Meanwhile, it is also accompanied by many ethical issues. By exploring the ethical challenges brought by AI in the research and application of Alzheimer’s disease imaging diagnosis, such as data security, interpretability, algorithmic discrimination, and disclosure of incidental findings, the paper proposed the corresponding countermeasures, with a view to providing certain ethical guidance for the AI application in medical imaging diagnosis, protecting the rights and interests of subjects/patients, and promoting the healthy development of technology.
4.Astrocytes promote oligodendrocyte precursor cell proliferation via Cx47-mediated regulation of exosome-derived CHI3L1 secretion.
Xiaoyan ZHANG ; Nannan CHENG ; Yan PENG
Journal of Central South University(Medical Sciences) 2025;50(4):573-585
OBJECTIVES:
Neurodegenerative diseases are closely associated with myelin loss, and the proliferation and differentiation of oligodendrocyte precursor cells (OPCs) are crucial to remyelination. However, the regulatory mechanisms involved remain incompletely understood. This study aims to investigate how astrocytes (ASTs) regulate the secretion of chitinase-3-like protein 1 (CHI3L1) via connexin 47 (Cx47)-mediated exosome signaling, and its subsequent effect on OPC proliferation.
METHODS:
Primary cells were isolated from postnatal day 1 Sprague-Dawley (P1SD) rats to establish 3 culture conditions: OPCs alone (Group O), OPCs in direct contact with ASTs (Group C), and OPCs cultured with AST-conditioned medium (Group A). Cellular morphology and proliferation were assessed using optical microscopy, 5-ethynyl-2'- deoxyuridine (EdU) incorporation, and flow cytometry. RNA sequencing (RNA-Seq) and bioinformatics analysis (BA) were conducted to identify differentially expressed genes (DEGs) among groups. Protein expression and cell cycle distribution were analyzed by Western blotting (WB) and flow cytometry. Exosomes were isolated and purified via differential centrifugation, characterized by nanoparticle tracking analysis (NTA) and transmission electron microscopy (TEM), and CHI3L1 expression in exosomes was verified via WB. Cx47 was silenced using small interfering RNA (siRNA) to evaluate its effect on OPC proliferation and exosome secretion. Artificial exosomes were constructed by encapsulating CHI3L1 in single unilamellar vesicles (SUVs), whose structure and size were validated by NTA and TEM. Following Cx47 knockdown, artificial exosomes were added back, and OPC proliferation was assessed via flow cytometry and EdU assay.
RESULTS:
Direct co-cultured with ASTs (Group C) resulted in significantly enhanced OPC proliferation compared to the Group O and Group A (P<0.05). RNA-Seq and WB analyses revealed that ASTs promote OPC proliferation and exosome secretion enriched in CHI3L1 through Cx47. Cx47 knockdown by siRNA led to significant decreases in OPC proliferation and exosome release (P<0.05). The inhibitory effect of Cx47 silencing on OPC proliferation was partially reversed by supplementation with either isolated exosomes or exogenous CHI3L1.
CONCLUSIONS
This study reveals a novel mechanism by which ASTs regulate OPC proliferation: Through direct contact, ASTs enhance the secretion of CHI3L1-rich exosomes via Cx47, thereby converting intercellular contact signals into secretory signals that promote OPC proliferation. As a key exosomal molecule, CHI3L1 may play an important role in neural function and remyelination and warrants further investigation.
Animals
;
Exosomes/metabolism*
;
Cell Proliferation
;
Rats, Sprague-Dawley
;
Rats
;
Connexins/genetics*
;
Oligodendrocyte Precursor Cells/metabolism*
;
Astrocytes/metabolism*
;
Chitinase-3-Like Protein 1/metabolism*
;
Cells, Cultured
;
Cell Differentiation
5.Progress in clinical studies of delayed othostatic hypotension
Yun YAN ; Nannan LI ; Yongkui CHEN
Journal of Clinical Neurology 2024;37(5):372-374
Recently,increasing attention has been paid to the study of orthostatic hypotension.Othostatic hypotension is a common systemic multisystem disease,with many clinical symptoms such as dizziness,headache,and blurred vision,which have a great impact on the quality of life of patients.Othostatic hypotension is divided into initial upright hypotension,delayed blood pressure recovery,classical orthostatic hypotension and delayed orthostatic hypotension.This paper aims to explore the research progress and clinical application value of delayed othostatic hypotension,and provide some reference for clinical diagnosis and treatment.
6.Characteristics of Emergency Health Systems Guidance Based on AGREE-HS
Danping ZHENG ; Wei YANG ; Nannan SHI ; Dongfeng WEI ; An LI ; Gezhi ZHANG ; Xue CHEN ; Fangqi LIU ; Zhaoshuai YAN ; Weixuan BAI ; Xinghua XIANG ; Yaxin TIAN ; Mengyu LIU ; Huamin ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):137-148
This study used the Appraisal of Guidelines Research & Evaluation-Health Systems (AGREE-HS) to demonstratively compare 34 global coronavirus disease-2019 (COVID-19) health systems guidance documents (HSGs) and 6 World Health Organization (WHO) standard HSGs. The comparison involved topic, participants, methods, recommendations, and implementability, with the aim of exploring the characteristics of emergency HSGs. The results showed that the emergency HSGs had an overall average score of 49%, with topic having the highest score, recommendations having the second highest score, and participants having the lowest score. The standard HSGs had an overall average score of 79%, with high scores in all items. The emergency HSGs had lower scores in participants, methods, recommendations, and implementability than the standard HSGs (P<0.001), while the COVID-19 emergency HSGs developed by the WHO had higher score in topic than the standard HSGs (P<0.05). Compared with those released by countries, the COVID-19 emergency HSG developed by the WHO showed superiority in all items and overall scores (P=0.000 2). This indicates that emergency HSGs, represented by the COVID-19 emergency HSG, place equal emphasis on topic and recommendations as standard HSGs but have low requirements in terms of expert participation, evidence support, and comprehensive consideration in the time- and resource-limited context. They have the characteristics of prominent topics, clear purposes, orientation to demand, keeping up with the latest evidence, flexible adjustment, and timeliness, emphasizing immediate implementation effects, weakening long-term effects, and focusing on comprehensive benefits. Additionally, developers, types, and report completeness are important influencing factors.
7.Characteristics of gut microbiota determine effects of specific probiotics strains in patients with functional constipation.
Haohao ZHANG ; Lijuan SUN ; Zhixin ZHAO ; Yao ZHOU ; Yuyao LIU ; Nannan ZHANG ; Junya YAN ; Shibo WANG ; Renlong LI ; Jing ZHANG ; Xueying WANG ; Wenjiao LI ; Yan PAN ; Meixia WANG ; Bing LUO ; Mengbin LI ; Zhihong SUN ; Yongxiang ZHAO ; Yongzhan NIE
Chinese Medical Journal 2024;137(1):120-122
8.Methodology for Developing Patient Guideline (3):Reporting Frameworks and Presentation
Lijiao YAN ; Ning LIANG ; Haili ZHANG ; Nannan SHI ; Ziyu TIAN ; Ruixiang WANG ; Xiaojia NI ; Yufang HAO ; Wei CHEN ; Yingfeng ZHOU ; Dan YANG ; Shuyu YANG ; Yujing ZHANG ; Ziteng HU ; Jianping LIU
Journal of Traditional Chinese Medicine 2024;65(22):2304-2309
Standardized reporting is a crucial factor affecting the use of patient guidelines (PGs), particularly in the reporting and presentation of recommendations. This paper introduced the current status of PG reporting, including the research on PG content and presentation formats, and provided comprehensive recommendations for PG reporting from aspects such as overall framework, recommendations, presentation format, and readability. First, the presentation of PG recommendations should include clearly defined clinical questions, recommendations and their rationale, and guidance on how patients should implement the interventions; for specific content in the PG, such as level of evidence, level of recommendation, it is recommended to explain in text the reasons for giving different levels of recommendation, i.e., to present the logic behind giving the level of recommendation to the patient; additional information needed in the recommendation framework should be supplemented by tracing references or authoritative textbooks and literature that support the recommendations. Subsequently, the PG text should be written based on the Reporting Checklist for Public Versions of Guidelines (RIGHT-PVG) reporting framework. Finally, to enhance readability and comprehension, it is recommended to refer to the Patient Education Materials Assessment Tool (PEMAT) for translating PG content. To enhance the readability of PGs, it is suggested to present the PG content in a persona-lized and layered manner.
9.Methodology for Developing Patient Guideline(1):The Concept of Patient Guideline
Lijiao YAN ; Ning LIANG ; Ziyu TIAN ; Nannan SHI ; Sihong YANG ; Yufang HAO ; Wei CHEN ; Xiaojia NI ; Yingfeng ZHOU ; Ruixiang WANG ; Zeyu YU ; Shuyu YANG ; Yujing ZHANG ; Ziteng HU ; Jianping LIU
Journal of Traditional Chinese Medicine 2024;65(20):2086-2091
Since the concept of patient versions of guidelines (PVGs) was introduced into China, several PVGs have been published in China, but we found that there is a big difference between the concept of PVG at home and abroad, and the reason for this difference has not been reasonably explained, which has led to ambiguity and even misapplication of the PVG concept by guideline developers. By analyzing the background and purpose of PVGs, and the understanding of the PVG concept by domestic scholars, we proposed the term patient guidelines (PGs). This refers to guidelines developed under the principles of evidence-based medicine, centered on health issues that concern patients, and based on the best available evidence, intended for patient use. Except for the general attribute of providing information or education, which is typical of common health education materials, PGs also provide recommendations and assist in decision-making, so PGs include both the patient versions of guidelines (PVG) as defined by the Guidelines International Network (GIN) and "patient-directed guidelines", i.e. clinical practice guidelines resulting from the adaptation or reformulation of recommendations through clinical practice guidelines.
10.Methodology for Developing Patient Guideline (2):Process and Methodology
Lijiao YAN ; Ning LIANG ; Nannan SHI ; Sihong YANG ; Ziyu TIAN ; Dan YANG ; Xiaojia NI ; Yufang HAO ; Wei CHEN ; Ruixiang WANG ; Yingfeng ZHOU ; Shibing LIANG ; Shuyu YANG ; Yujing ZHANG ; Ziteng HU ; Jianping LIU
Journal of Traditional Chinese Medicine 2024;65(21):2194-2198
At present, the process and methodology of patient guidelines (PGs) development varies greatly and lacks systematic and standardised guidance. In addition to the interviews with PG developers, we have sorted out the relevant methodology for the adaptation and development of existing clinical practice guideline recommendations and facilitated expert deliberations to achieve a consensus, so as to finally put forward a proposal for guidance on the process and methodology for the development of PGs. The development of PGs can be divided into the preparation stage, the construction stage, and the completion stage in general, but the specific steps vary according to the different modes of development of PGs. The development process of Model 1 is basically the same as the patient version of the guideline development process provided by the International Guidelines Network, i.e., team formation, screening of recommendations, guideline drafing, user testing and feedback, approval and dissemination. The developer should also first determine the need for and scope of translating the clinical practice guideline into a patient version during the preparation phase. Model 2 adds user experience and feedback to the conventional clinical practice guideline development process (forming a team, determining the scope of the PG, searching, evaluating and integrating evidence, forming recommendations, writing the guideline, and expert review). Based on the different models, we sort out the process and methods of PG development and introduce the specific methods of PG development, including how to identify the clinical problem and how to form recommendations based on the existing clinical practice guidelines, with a view to providing reference for guideline developers and related researchers.

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