1.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.
2.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.
3.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.
4.Association of sleep duration and physical exercise with dyslipidemia in older adults aged 80 years and over in China
Bing WU ; Yang LI ; Lanjing XU ; Zheng ZHANG ; Jinhui ZHOU ; Yuan WEI ; Chen CHEN ; Jun WANG ; Changzi WU ; Zheng LI ; Ziyu HU ; Fanye LONG ; Yudong WU ; Xuehua HU ; Kexin LI ; Fangyu LI ; Yufei LUO ; Yingchun LIU ; Yuebin LYU ; Xiaoming SHI
Chinese Journal of Epidemiology 2024;45(1):48-55
Objective:To explore the impact of sleep duration, physical exercise, and their interactions on the risk of dyslipidemia in older adults aged ≥80 (the oldest old) in China.Methods:The study subjects were the oldest old from four rounds of Healthy Aging and Biomarkers Cohort Study (2008-2009, 2011-2012, 2014 and 2017-2018). The information about their demographic characteristics, lifestyles, physical examination results and others were collected, and fasting venous blood samples were collected from them for blood lipid testing. Competing risk model was used to analyze the causal associations of sleep duration and physical exercise with the risk for dyslipidemia. Restricted cubic spline (RCS) function was used to explore the dose-response relationship between sleep duration and the risk for dyslipidemia. Additive and multiplicative interaction model were used to explore the interaction of sleep duration and physical exercise on the risk for dyslipidemia.Results:The average age of 1 809 subjects was (93.1±7.7) years, 65.1% of them were women. The average sleep duration of the subjects was (8.0±2.5) hours/day, 28.1% of them had sleep duration for less than 7 hours/day, and 27.2% had sleep for duration more than 9 hours/day at baseline survey. During the 9-year cumulative follow-up of 6 150.6 person years (follow-up of average 3.4 years for one person), there were 304 new cases of dyslipidemia, with an incidence density of 4 942.6/100 000 person years. The results of competitive risk model analysis showed that compared with those who slept for 7-9 hours/day, the risk for dyslipidemia in oldest old with sleep duration >9 hours/day increased by 22% ( HR=1.22, 95% CI: 1.07-1.39). Compared with the oldest old having no physical exercise, the risk for dyslipidemia in the oldest old having physical exercise decreased by 33% ( HR=0.67, 95% CI: 0.57-0.78). The RCS function showed a linear positive dose-response relationship between sleep duration and the risk for hyperlipidemia. The interaction analysis showed that physical exercise and sleep duration had an antagonistic effect on the risk for hyperlipidemia. Conclusion:Physical exercise could reduce the adverse effects of prolonged sleep on blood lipids in the oldest old.
5.Amide proton transfer weighted imaging in assessment of acid-base metabolism in chronic ischemic brain tissue
Hongxia LI ; Chao XIA ; Jiaxin ZENG ; Zhiqin LIU ; Xia WEI ; Yuan SUN ; Xing LI ; Ziyu LI ; Yue LI ; Anqi XIAO ; Yi LIU ; Kai AI ; Su LYU ; Na HU
Chinese Journal of Radiology 2024;58(8):807-812
Objective:To explore changes of acid-base metabolism in the brain tissue of patients with chronic ischemic cerebrovascular disease (CICVD) using MRI amide proton transfer-weighted (APTw) imaging.Methods:This was a cross-sectional study. From January 2021 to July 2022, thirty-nine patients with CICVD at West China Hospital, Sichuan University were retrospectively included. All patients received CT perfusion (CTP) and APTw imaging. NeuBrainCARE brain perfusion software was used to analyze the impaired perfusion sites and measure the mean transit time (MTT) and time to peak (TTP). Standard spatial matching between CTP and APTw images was performed to measure the APTw values of the same sites. For comparison with normal tissue, APTw values were measured for normal-appearing white matter (NAWM) in the ipsilateral cerebral hemisphere, the contralateral cerebral hemisphere, and the ipsilateral cerebellar hemisphere in areas of impaired perfusion. ANOVA was used to compare the APTw values of impaired perfusion brain tissue, ipsilateral cerebral NAWM, contralateral cerebral NAWM, and ipsilateral cerebellar NAWM. The Bonferroni method was used to correct for multiple comparisons. Pearson correlation coefficient was used to analyze the correlation between APTw values and MTT and TTP in the cerebral tissue with impaired perfusion.Results:In 39 patients with CICVD, both the mean and minimum APTw values of cerebral tissue with impaired perfusion were significantly lower than those in the NAWM of the ipsilateral cerebral hemisphere, the contralateral cerebral hemisphere, and the ipsilateral cerebellar hemisphere ( P<0.001). In the NAWM of the cerebellar hemispheres with unimpaired perfusion, both the mean and minimum APTw values were significantly higher than those in the ipsilateral cerebral hemispheres and the contralateral cerebral hemisphere ( P<0.001). Correlation analysis showed that MTT was significantly negatively correlated with both the mean APTw and the minimum APTw ( r values were -0.90 and -0.82, P<0.001). TTP was significantly negatively correlated with both the mean APTw and the minimum APTw ( r values were -0.86 and -0.78, P<0.001). Conclusion:APTw value can reflect acidosis in cerebral tissue with impaired perfusion in patients with CICVD.
6.Improving Granulosa Cell Function in Premature Ovarian Failure with Umbilical Cord Mesenchymal Stromal Cell ExosomeDerived hsa_circ_0002021
Ge YANG ; Bo ZHANG ; Mei XU ; MingJun WU ; Jie LIN ; ZiYu LUO ; YueHua CHEN ; Qin HU ; GuoPing HUANG ; HaiYan HU
Tissue Engineering and Regenerative Medicine 2024;21(6):897-914
BACKGROUND:
The therapeutic potential of exosomes from human umbilical cord mesenchymal stem cells (HUMSCsExo) for delivering specific circular RNAs (circRNAs) in treating premature ovarian failure (POF) is not well understood.This study aimed to explore the efficacy of HUMSCs-Exo in delivering hsa_circ_0002021 for POF treatment, focusing on its effects on granulosa cell (GC) senescence and ovarian function.
METHODS:
Bioinformatic analysis was conducted on circRNA profiles using the GSE97193 dataset from GEO, targeting granulosa cells from varied age groups. To simulate granulosa cell senescence, KGN cells were treated with cyclophosphamide (CTX). HUMSCs were transfected with pcDNA 3.1 vectors to overexpress hsa_circ_0002021, and the HUMSCsExo secreted were isolated. These exosomes were characterized by transmission electron microscopy (TEM) and Western blotting to confirm exosomal markers CD9 and CD63. Co-culture of these exosomes with CTX-treated KGN cells was performed to assess b-galactosidase activity, oxidative stress markers, ROS levels, and apoptosis via flow cytometry.Interaction between hsa_circ_0002021, microRNA-125a-5p (miR-125a-5p), and cyclin-dependent kinase 6 (CDK6) was investigated using dual-luciferase assays and RNA immunoprecipitation (RIP). A POF mouse model was induced with CTX, treated with HUMSCs-Exo, and analyzed histologically and via immunofluorescence staining. Gene expression was quantified using RT-qPCR and Western blot.
RESULTS:
hsa_circ_0002021 was under expressed in both in vivo and in vitro POF models and was effectively delivered by HUMSCs-Exo to KGN cells, showing a capability to reduce GC senescence. Overexpression of hsa_circ_0002021 in HUMSCs-Exo significantly enhanced these anti-senescence effects. This circRNA acts as a competitive adsorbent of miR-125a-5p, regulating CDK6 expression, which is crucial in modulating cell cycle and apoptosis. Enhanced expression of hsa_circ_0002021 in HUMSCs-Exo ameliorated GC senescence in vitro and improved ovarian function in POF models by modulating oxidative stress and cellular senescence markers.
CONCLUSION
This study confirms that hsa_circ_0002021, when delivered through HUMSCs-Exo, can significantly mitigate GC senescence and restore ovarian function in POF models. These findings provide new insights into the molecular mechanisms of POF and highlight the therapeutic potential of circRNA-enriched exosomes in treating ovarian aging and dysfunction.
7.A consensus on the management of allergy in kindergartens and primary schools
Chinese Journal of School Health 2023;44(2):167-172
Abstract
Allergic diseases can occur in all systems of the body, covering the whole life cycle, from children to adults and to old age, can be lifelong onset and even fatal in severe cases. Children account for the largest proportion of the victims of allergic disease, Children s allergies start from scratch, ranging from mild to severe, from less to more, from single to multiple systems and systemic performance, so the prevention and treatment of allergic diseases in children is of great importance, which can not only prevent high risk allergic conditions from developing into allergic diseases, but also further block the process of allergy. At present, there is no consensus on the management system of allergic children in kindergartens and primary schools. The "Consensus on Allergy Management and Prevention in Kindergartens and Primary Schools", which includes the organizational structure, system construction and management of allergic children, provides evidence informed recommendations for the long term comprehensive management of allergic children in kindergartens and primary schools, and provides a basis for the establishment of the prevention system for allergic children.
8.Correlation between hand-arm vibration disease and vasoactive factors
Xiuwen HU ; Ziyu CHEN ; Jiajie LI ; Yuan WEI ; Yun XIA ; Qingsong CHEN ; Hongyu YANG
Journal of Environmental and Occupational Medicine 2022;39(11):1204-1208
Background Hand-arm vibration disease (HAVD) is a chronic progressive disease caused by long-term exposure to hand-transmitted vibration, but the mechanism by which vibration affects peripheral vascular function of fingers is not completely clear. Objective To study the association between vasoactive factors and HAVD, and to screen specific indicators for its early diagnosis and prevention. Methods Judgmental sampling method was used to select workers with (HAVD group) and without HAVD (vibration contact group), and non-hand-transmitted vibration operation workers (control group), with 60 workers in each group. The levels of leukotriene B4 (LTB4), vascular endothelial growth factor (VEGF), 5-hydroxy tryptamine (5-HT), interleukin-1β (IL-1β), and calcitonin gene-related peptide (CGRP) in plasma of the three groups were measured by enzyme-linked immunosorbent assay. The association between vasoactive factors and HAVD was analyzed using logistic regression, and the diagnostic HAVD indicators were screened by receiver operator characteristic (ROC) curve of a multivariate model indicator
9.Effects of vibration on expressions of vascular endothelial inflammatory factors and IncRNA MEG3 in vitro
Hongyu YANG ; Qingsong CHEN ; Zheng LI ; Ziyu CHEN ; Bingqian DU ; Xi ZHANG ; Xiuwen HU ; Yun XIA
Journal of Environmental and Occupational Medicine 2022;39(11):1209-1213
Background Prolonged exposure to vibration can cause vascular endothelial injury, and inflammatory response plays an important role in vascular endothelial injury. Studies have shown that long non-coding RNA (lncRNA) maternally expressed gene 3 (MEG3) is involved in regulating the expression of inflammatory injury of endothelial cells. Objective To investigate the effects of vibration on the secretion of inflammatory factors and the expression of IncRNA MEG3 by vascular endothelial cells in vitro. Methods Human umbilical vein endothelial cells (HUVEC) were divided into two categories: vibration and control. The vibration exposure included 63 Hz (6.76 m·s−2), 200 Hz (5.08 m·s−2), and 250 Hz (4.56 m·s−2) frequency bands, and 1 and 2 d exposure time with 1 to 4 h of daily vibration. The control treatment was the same as the vibration category except that they were not exposed to vibration. CCK-8 was used to detect the effects of different vibration frequencies and time on the viability of HUVEC. The expression levels of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8), interleukin-4 (IL-4), and interleukin-10 (IL-10) in the cells and supernatants were detected by enzyme-linked immunosorbent assay. The expression levels of IncRNA MEG3 were detected by real-time fluorescence quantitative PCR. Results Compared with the cells with the control treatment, the cell viability of the 1-day exposure group increased after 1.5 h and 3 h of vibration at 63 Hz, while decreased after 2 h and 2.5 h; the cell viability of the 2-day exposure group increased at the frequency of 63 Hz for 1.5 h, but decreased at 2 h and 2.5 h. At the frequency of 200 Hz, the cell viability of the 1-day exposure group increased at 2 h and 4 h, but decreased at 2.5 h and 3 h; the cell viability of the 2-day exposure group increased at 1.5 h and decreased at 2.5 h. For the vibration exposure at frequency of 250 Hz, the cell viability of the 1-day exposure group increased at 1.5 h and 2.5 h, but decreased at 3 h; of the 2-day exposure group, the cell viability increased at 1.5 h and decreased at 3 h. For the exposure settings of 63 and 200 Hz vibration for 2.5 h and 250 Hz vibration for 3 h, and with the control treatment as reference, the expression levels of TNF-α, IL-8, IL-4, and IL-10 in cells and supernatants were increased in the 1 d and 2 d exposures; the expression level of lncRNA MEG3 decreased in the 1 d exposure group; however, for the 2 d exposure, the expression level of lncRNA MEG3 decreased only in the 63 Hz vibration exposure. All of these results were statistically significant (P<0.05). Conclusion Vibration could induce an increase in the levels of inflammatory factors TNF-α, IL-8, IL-4, and IL-10 and a decrease in the expression level of lncRNA MEG3 in vascular endothelial cells in vitro.
10.Expression changes of prostacyclin and thromboxane in blood of rats with tail vibration
Ziyu CHEN ; Nuoyan WEI ; Zhishan LIANG ; Huimin HUANG ; Xiuwen HU ; Junyi WANG ; Qingsong CHEN ; Hongyu YANG
Journal of Environmental and Occupational Medicine 2022;39(11):1226-1230
Background Long-term exposure to hand-transmitted vibration can lead to hand-arm vibration syndrome, one manifestation of which is impaired peripheral blood circulation in the arms. Altered expressions of prostacyclin I2 (PGI2) and thromboxane A2 (TXA2) in blood may be one of the important mechanisms of vibration-induced hand-arm vibration syndrome. Objective To reveal the effects of rat tail vibration on the expressions of PGI2 and TXA2 in plasma, and to establish the correlation between the change of rat plasma PGI2 to TXA2 ratio and rat tail vibration. Methods Fifty SPF-grade male SD rats were randomly divided into five groups: control group, 1 d exposure group, 3 d exposure group, 7 d exposure group, and 14 d exposure group, with 10 rats in each group. The rats were placed in rat immobilizes on a immobilization table, and the rats' tails were connected to a shaker and fixed with medical tape. There was no overlap between the immobilizes and between the rats' tails by no contact between the immobilization table and the shaker. The exposure dose was 125 Hz, 5.9 m·s−2, 4 h·d−1, and the vibration direction was linear vertical vibration. Abdominal aortic blood was taken at the end of vibration exposure, and the expressions of PGI2, TXA2, and their hydrolysates 6-keto-prostaglandin F1α (6-keto-PGF1α) and thromboxane B2 (TXB2) were measured by enzyme-linked immunosorbent assay, and the 6-keto-PGF1α/TXB2 values were calculated. Spearman rank correlation was used to analyze whether the expression of vascular factors correlated with the accumulated time of vibration. Results The expression levels of plasma 6-keto-PGF1α were (896.12±124.37), (1068.13±119.41), (1215.26±122.64), and (1317.94±106.54) ng·L−1 in the 1 d, 3 d, 7 d, and 14 d groups of rats, respectively, which were higher than that in the control group, (830.60±109.47) ng·L−1 (P<0.001). The PGI2 expression levels were (86.49±2.40), (107.90±2.65), (114.02±2.16), and (126.95±1.94) ng·L−1 in the 1 d, 3 d, 7 d, and 14 d groups of rats, respectively, all higher than (60.09±2.11) ng·L−1 in the control group (P<0.001). The expression levels of TXB2 were (132.14±4.10), (145.52±4.09), (179.91±4.98), and (204.10±3.22) ng·L−1 in the 1 d, 3 d, 7 d, and 14 d groups of rats, respectively, which were higher than that in the control group, (106.08±3.26) ng·L−1 (P<0.001). The expression levels of plasma TXA2 were (211.99±3.24), (236.33±3.88), and (245.45±4.23) ng·L−1 in rats in the 3 d, 7 d, and 14 d groups, respectively, which were all elevated compared with (174.79±4.19) ng·L−1 in the control group (P<0.001). Compared with the control group, the 6-keto-PGF1α/TXB2 values were decreased in the 7 d and 14 d groups (P<0.05). The 6-keto-PGF1α, PGI2, TXB2, and TXA2 expressions were positively correlated with vibration accumulation time (r=0.84, 0.84, 0.80, 0.84, P<0.001) and the 6-keto-PGF1α/TXB2 values were negatively correlated with vibration accumulation time (r=-0.24, P=0.003). Conclusion Local exposure of rat tail to vibration could increase the expressions of PGI2 and TXA2 in blood, and the elevated expressions show a dose-effect relationship with the duration of vibration exposure, but the PGI2/TXA2 tends to decrease with the accumulation of vibration exposure.


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