1.Signal mining for bleeding risk associated with the concomitant use of direct oral anticoagulants and triazole antifungals
Ziyang WU ; Ying ZHU ; Menghua ZHANG ; Na HE ; Qiong QIN ; Cheng XIE
China Pharmacy 2026;37(9):1185-1189
OBJECTIVE To assess the bleeding risk signals associated with the concomitant use of direct oral anticoagulants (DOACs) and triazole antifungals, and to provide pharmacovigilance evidence for the safety evaluation and monitoring of combined clinical use. METHODS Adverse event reports involving the concomitant use of DOACs and triazole antifungals were extracted from the US FDA Adverse Event Reporting System (FAERS) from the first quarter of 2004 to the third quarter of 2025. Nine bleeding-related preferred terms (PTs) were selected. The Ω shrinkage measure, additive model, multiplicative model, and combined risk ratio method were employed to detect drug-drug interaction signals. The strength of positive signals was further analyzed based on the Ω shrinkage measure. RESULTS A total of 790 adverse event reports involving the concomitant use of DOACs and triazole antifungals were included, among which 229 reports involved nine bleeding-related PTs. A total of 13 signals were consistently identified as posit ive by all four methods. These signals involved six drug combinations: apixaban-fluconazole, apixaban-posaconazole, rivaroxaban-itraconazole, dabigatran etexilate-fluconazole, apixaban-voriconazole, and dabigatran etexilate-itraconazole. The Ω shrinkage measure showed that the apixaban-posaconazole combination exhibited stronger signals for bleeding ( Ω =2.73, Ω 025 =2.05) and hemoptysis ( Ω =2.17, Ω 025 =0.83); the apixaban-fluconazole combination exhibited stronger signals for hematoma ( Ω =2.30, Ω 025 =1.47) and hematuria ( Ω =1.71, Ω 025 =0.74); the rivaroxaban-itraconazole combination exhibited stronger signals for epistaxis ( Ω =2.01, Ω 025 =0.90) and hematoma ( Ω =1.93, Ω 025 =0.42); no positive Ω signals were observed for intracranial hemorrhage or upper gastrointestinal hemorrhage. CONCLUSION S This study suggests that the concomitant use of DOACs and triazole antifungals may increase the risk of bleeding-related events, with differences in signal strength and signal distribution across various drug combinations. In clinical practice, particular attention should be paid to the concomitant use of apixaban or rivaroxaban with strong cytochrome P450 3A4 or P-glycoprotein inhibitors such as posaconazole and itraconazole. For other DOAC-triazole antifungal combinations, close monitoring for bleeding-related manifestations and timely adjustment of anticoagulation or antifungal regimens are also warranted.
2.Genetic analysis of two cases of submicroscopic chromosomal structural variants leading to abnormal pregnancies.
Chengxiu XIE ; Xiong ZHU ; Yacong WANG ; Qingsong LIU
Chinese Journal of Medical Genetics 2026;43(2):143-150
OBJECTIVE:
To investigate the genetic mechanism for adverse pregnancies due to submicroscopic chromosomal structural variants in two cases, and to provide a precise guidance for preimplantation genetic testing.
METHODS:
Two families who had visited Chengdu Women's and Children's Central Hospital for reproduction guidance due to recurrent miscarriages, adverse pregnancy history and abnormal genetic testing of the offspring in June and December 2023 were selected as the study subjects. Chromosomal karyotyping and optical genome mapping (OGM) were carried out on peripheral blood samples from the two couples, and preimplantation genetic testing for structural rearrangement (PGT-SR) were performed on the blastocyst trophoblasts. This study was approved by the Medical Ethics Committee of the Hospital (Ethic No.: 2023-23).
RESULTS:
No abnormality was found on the G-banded karyotyping analysis for both couples. The OGM results revealed that the female partner of couple 1 had a translocation between 4pter-p16.3 (3.99 Mb) and 11pter-p15.4 (2.66 Mb), whilst no abnormality was found in the male partner. Similarly, the male partner of couple 2 had a translocation between 19q13.43-qter (1.90 Mb) and 22q13.31-qter (3.34 Mb). No abnormality was found in the female partner of couple 2. Neither breakpoints nor the adjacent region had involved an OMIM gene, except the formation of a fusion gene ZIM2-AS1-Z82186.1 (Both genes are non-coding, and the fusion gene was deemed as variant of unknown significance). PGT-SR of 11 blastocysts derived from couple 1 revealed that one embryo was suitable for priority transfer, three embryos were suitable for transfer, one embryo was recommended for genetic counselling, and six embryos were unsuitable for the transfer. For couple 2, six blastocysts were tested, of which only one embryo was deemed suitable for transfer.
CONCLUSION
When genetic testing of offspring indicates copy number variations such as deletions, duplications or mosaicism, the high-resolution OGM technique can be selected to screen parents for submicroscopic chromosomal structural variations. The result can facilitate accurate assessment for the risk of recurrence in offspring, selection of suitable method for reproduction, and identifying targets for PGT.
Humans
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Female
;
Pregnancy
;
Adult
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Male
;
Karyotyping
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Chromosome Aberrations
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Abortion, Habitual/genetics*
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Preimplantation Diagnosis
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Genetic Testing
3.Diagnostic value of serum Mac-2 binding protein for the severity of schistosomiasis-induced liver fibrosis
Jun WU ; Meiqun LUO ; Shuying XIE ; Ronghua ZHU ; Hui XU ; Long TANG ; Fei HU ; Sheng DING
Chinese Journal of Schistosomiasis Control 2026;38(1):38-43
Objective To evaluate the value of serum Mac-2 binding protein (M2BP) for assessment of the severity of schisto somiasis-induced liver fibrosis, so as to provide insights into non-invasive diagnosis and disease surveillance of liver fibrosis caused by schistosomiasis. Methods A total of 234 individuals with a history of Schistosoma japonicum infection were sampled from Xinhua Village, Lushan City, Jiangxi Province from 2019 to 2020, and 234 serum samples were collected from all participants. All participants received B-ultrasound examinations of the liver. Serum samples were categorized into four groups (grades 0, Ⅰ, Ⅱ and Ⅲ schistosomiasis-induced liver fibrosis groups) according to B-ultrasound examination results, and then, each group was randomly divided into a receiver operating characteristic (ROC) curve group and an efficacy assessment group at a ratio of 7∶3. Serum M2BP concentration was measured in four groups using the enzyme-linked immunosorbent assay (ELISA), and differences in serum M2BP concentrations were compared with analysis of variance and Spearman correlation analysis. Serum M2BP concentration was subjected to ROC curve analysis among individuals with different grades of schistosomiasis-induced liver fibrosis in the ROC curve group to determine the optimal diagnostic threshold of M2BP concentration at different fibrosis grades, and the area under the ROC curve (AUC) was calculated to evaluate the diagnostic performance. The diagnostic accuracy was verified by comparing the accordance rate and Kappa consistency test in the efficacy assessment group. Results Among 234 serum samples, there were 79 samples with grade 0 schistosomiasis-induced liver fibrosis, 87 samples with Grade Ⅰ, 46 samples with Grade Ⅱ and 22 samples with Grade Ⅲ according to the B-ultrasound examinations. The mean serum M2BP concentrations were (0.40 ± 0.31) [95% confidence interval (CI): (0.33, 0.47)], (0.64 ± 0.48) [95% CI: (0.53, 0.74)], (1.76 ± 0.58) [95% CI: (1.59, 1.93)] μg/mL and (2.56 ± 0.93) [95% CI: (2.14, 2.97)] μg/mL in the four groups, respectively (F = 150.796, P < 0.001), and the severity of schistosomiasis-induced liver fibrosis significantly positively correlated with serum M2BP concentration (rs = 0.715, P < 0. 001). The sample sizes of grades 0, Ⅰ, Ⅱ and Ⅲ schistosomiasis-induced liver fibrosis sera were randomly allocated as follows: 55 versus 24, 61 versus 26, 32 versus 14, and 15 versus 7 in the ROC curve and efficacy assessment groups, respectively, and the serum M2BP concentrations were (0.39 ± 0.29) μg/mL and (0.42 ± 0.36) μg/mL (F = 0.196, P > 0.05), (0.59 ± 0.47) μg/mL and (0.75 ± 0.51) μg/mL (F = 1.967, P > 0.05), (1.73 ± 0.59) μg/mL and (1.85 ± 0.57) μg/mL (F = 0.417, P > 0.05), and (2.46 ± 0.64) μg/mL and (2.76 ± 1.41) μg/mL (F = 0.491, P > 0.05), respectively. ROC curve analysis showed that the optimal diagnostic thresholds of serum M2BP concentration were 0.347 86 μg/mL (AUC = 0.635, P < 0.05), 1.188 83 μg/mL (AUC = 0.938, P < 0.000 1) and 2.021 21 μg/mL (AUC = 0.821, P < 0.000 1) for grade Ⅰ, Ⅱ and Ⅲ schistosomiasis-induced liver fibrosis. In addition, the accordance rates between the optimal diagnostic threshold of serum M2BP and B-ultrasound examinations for predicting grade Ⅰ, Ⅱ and Ⅲ schistosomiasis-induceed liver fibrosis were 69.23%, 85.71% and 71.43% (χ2 = 1.340, P > 0.05), and the overall Kappa consistency test showed moderate consistency [Kappa = 0.608, 95% CI: (0.428, 0.788); Z = 6.609, P < 0.000 1]. Conclusions Serum M2BP may serve as a potential biomarker for assessing moderate to advanced schistosomiasis-induced liver fibrosis; however, its diagnostic value for early-stage schistosomiasis-induced liver fibrosis remains limited.
4.Expert Consensus on Clinical Application of Qidong Yixin Oral Liquid
Changkuan FU ; Xiaochang MA ; Mingjun ZHU ; Yue DENG ; Hongxu LIU ; Mingxue ZHANG ; Ying CHEN ; Yan ZHOU ; Ling ZHANG ; Jianhua FU ; Wei YANG ; Yu'er HU ; Ming CHEN ; Yanming XIE ; Yuanyuan LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):147-158
The prescription of Qidong Yixin oral liquid is derived from the experience of national medical master Ren Jixue in treating viral myocarditis (VMC). It has the functions of tonifying Qi, nourishing the heart,calming the mind, and relieving palpitations. It is used to treat VMC and angina pectoris of coronary heart disease caused by deficiency of both Qi and Yin. However,the understanding of its efficacy evidence, advantageous aspects, dosage and administration, and medication safety remains insufficient in clinical practice. Therefore,the development of the Expert Consensus on the Clinical Application of Qidong Yixin Oral Liquid (hereinafter referred to as consensus) was initiated. Consensus strictly followed the process and methods of the expert consensus on the clinical application of Chinese patent medicines of the China Association of Chinese Medicine,successively completing multiple tasks such as the consensus project initiation,determination of clinical problems,evidence search and evaluation,formation of recommendation opinions and consensus suggestions,solicitation of opinions,peer review, submission for review and release, and so on. Consensus formed a total of 10 recommendation opinions and 12 consensus suggestions,clarifying the clinical positioning,efficacy advantages,syndrome differentiation,dosage and administration,combination therapy,timing of medication,adverse reactions,contraindications, and precautions of Qidong Yixin oral liquid,indicating that it has good clinical advantages and safety in the treatment of VMC and angina pectoris of coronary heart disease,providing norms and references for physicians to safely and rationally apply Qidong Yixin oral liquid. Consensus was reviewed and approved for release by the Standardization Office of the China Association of Chinese Medicine on December 23, 2024. Standard number:GSCACM-376-2024.
5.Ameliorative effect and mechanism of Forsythia suspensa-Lonicera japonica herb pair on acute lung injury via regulating serum exosomal miRNA
Zhaohua CHEN ; Shumin XIE ; Wanshun CHANG ; Yuqing HAN ; Yanwen CHEN ; Yanhui ZHU ; Mingzhuo CAO ; Haiying HUANG
China Pharmacy 2026;37(3):305-310
OBJECTIVE To study the ameliorative effect and mechanism of Forsythia suspensa-Lonicera japonica herb pair on acute lung injury (ALI) based on serum exosomal microRNA (miRNA). METHODS The rats were randomly divided into a blank group (normal saline), model group (nomal saline), and F. suspensa-L. japonica herb pair group (2.55 g/kg), with 10 rats in each group. Except for the blank group, the other groups were used to establish an ALI model by intratracheal dripping of 5 mg/ mL lipopolysaccharides. After modeling, each group was given relevant medicine/normal saline intragastrically, once a day, for 3 consecutive days. After the last medication, the pathological status of lung tissue was observed; lung wet-to-dry weight ratio and leukocyte counts in bronchoalveolar lavage fluid (BALF) were determined. The levels of inflammatory factors [tumor necrosis factor-α(TNF-α), interleukin-1β (IL-1β), IL-10] in BALF were determined. Exosomes were isolated from rat serum, and high- throughput sequencing technology was employed to screen differentially expressed miRNA within the exosomes, followed by Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Based on the screened differentially expressed miRNA and the enriched KEGG pathways, in vitro cellular experiments were conducted for validation. RESULTS The animal experimental results demonstrated that after intervention with the F. suspensa-L. japonica herb pair, the wet-to-dry weight ratio, the number of leukocytes in BALF, as well as the levels of TNF-α and IL-1β in BALF of ALI rats were all significantly reduced (P<0.01), while the level of IL-10 was significantly increased (P<0.01). The results of high-throughput sequencing experiments revealed that the F. suspensa-L. japonica herb pair could significantly up-regulate the expressions of miR-345-3p, miR-194-5p, miR-653-5p, and others in exosomes. Among them, the KEGG pathways involved in the target genes of differentially expressed miRNA included the hypoxia-inducible factor-1(HIF-1) signaling pathway, among others. The results of cellular E-mail:huang.haiying@126.com validation experiments showed that overexpressed miR-345-3p could significantly elevate the level of IL-10 in the cell supernatant (P<0.01), while significantly reducing the levels of TNF-α and IL-1β in the cell supernatant, as well as the mRNA and protein expression levels of protein kinase B1, phosphatidylinositol 3- kinase, and HIF-1α (P<0.01). CONCLUSIONS F. suspensa-L. japonica herb pair can alleviate inflammatory responses and thereby exert a therapeutic effect in improving ALI by up-regulating the expression of miR-345-3p in serum exosomes and inhibiting the activity of the HIF-1 signaling pathway.
6.Mechanisms of Qiaobai cold compress solution in improving acne vulgaris based on transcriptomics and experiment
Zhenjiang XIE ; Weina ZHU ; Liangliang CAO ; Fuqiong ZHOU ; Shupan ZHANG ; Bingwen ZHOU ; Yinsheng CHEN ; Wen LI ; Ying ZHAO
China Pharmacy 2026;37(4):425-430
OBJECTIVE To investigate the mechanism by which Qiaobai cold compress solution (QBCS) improves acne vulgaris (AV) based on transcriptomics and animal experiments. METHODS Rats were randomly divided into a blank control group ( n =6) and a modeling group ( n =30). AV models were established in the modeling group by topical application of oleic acid to the inner surface of both ears, combined with subcutaneous injection of Cutibacterium acnes suspension into the auricle. Successfully modeled rats were further divided into the model group, positive control group (Tretinoin cream, 0.045 g/kg), and QBCS low-, medium-, high-dose groups [3.55, 7.11, 14.22 g/kg (calculated by the amount of crude drug) ] , with 6 rats in each group. Rats in each d rug group were treated with the corresponding drugs once daily for 14 consecutive days. After the final administration, changes in the appearance of the ears and histopathological changes in the ear tissues were observed, and serum levels of inflammatory factors, including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β, were measured. Auricular tissues from the blank control group, model group and QBCS medium-dose group were collected for transcriptome sequencing. Differential expressed genes (DEGs) were screened and subjected to Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis, followed by validation using real-time quantitative polymerase chain reaction and Western blot assay. RESULTS Compared with the model group, rats in all QBCS groups showed alleviated auricular acne symptoms, with reduced epidermal thickening, sebaceous gland hyperplasia, and inflammatory cell infiltration. Serum levels of TNF-α (except for the QBCS low-dose group), IL-6 (except for the QBCS low-dose group) and IL-1β were significantly decreased ( P <0.05). A total of 590 DEGs were identified (blank control group vs. model group), and 596 DEGs were identified (model group vs. QBCS medium-dose group). Above DEGs (blank control group vs. model group) were mainly enriched in Toll-like receptor (TLR) and nuclear factor-kappa B (NF-κB) signaling pathways, etc. Validation experiments showed that, compared with model group, low-, medium- and high-dose of QBCS reduced, to varying degrees, the mRNA expression of TNF-α, TLR2, interferon-γ and CXC chemokine ligand 8 in the auricular tissues of AV rats, increased the mRNA expression of peroxisome-proliferator-activated receptor gamma and tumor protein 53, and inhibited the phosphorylation of NF-κB p65 protein as well as the expressions of TLR2 and myeloid differentiation primary response protein 88(MyD88) ( P <0.05). CONCLUSIONS QBCS can alleviate auricular inflammation and skin lesions in AV rats. This effect may be related to inhibition of the TLR/MyD88/NF-κB signaling pathway, thereby suppressing the expression of downstream inflammatory factors such as TNF-α.
7.Mechanism of action of Qingre huatan huoxue decoction against atherosclerosis based on macrophage polarization
Huaping ZHONG ; Qicheng ZHU ; Zhengwei ZOU ; Zhengyi HE ; Heping XIE ; Xu CHEN ; Zhisheng DUAN ; Tian XIAO
China Pharmacy 2026;37(4):438-443
OBJECTIVE To explore the mechanism of action of Qingre huatan huoxue decoction against atherosclerosis (AS)based on macrophage polarization. METHODS Using atorvastatin served as the positive control, the drug-containing serum of the Qingre huatan huoxue decoction was prepared to treat RAW264.7 macrophages. Macrophage viability, apoptosis rate, and the fluorescence intensities of CD86 and CD206 were measured, along with the levels of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β). Apolipoprotei n E-deficient (ApoE -/- ) mice (AS model mice) fed with a high-fat diet were randomly assigned to model group, atorvastatin group (2.6 mg/kg), and low-, medium- and high-dose groups of Qingre huatan huoxue decoction (90, 180, 360 mg/kg), respectively. C57BL/6J mice fed with a standard diet served as the normal control group, with 10 mice per group. The treatment group mice were administered the corresponding drugs intragastrically, once daily, for 8 consecutive weeks. Serum levels of TNF-α and IL-1β were measured in all groups. Lipid deposition in the aorta (assessed by the percentage of plaque in the entire aorta and aortic root) and morphological changes in the aortic root were observed. Expression levels of CD86 and CD206 in aortic tissue, as well as the protein expression levels of inducible nitric oxide synthase (iNOS), arginase-1 (Arg-1), AMP-activated protein kinase (AMPK), phosphorylated AMPK (p-AMPK), and peroxisome proliferator-activated receptor γ (PPAR-γ) in aortic tissues were all detected. RESULTS Cell experiment results showed that, at concentrations of 5-100 μg/mL, the drug-containing serum of the Qingre huatan huoxue decoction significantly increased RAW264.7 cell viability ( P <0.05). The drug-containing serum of the Qingre huatan huoxue decoction at concentrations of 10, 50, and 100 μg/mL, along with atorvastatin, significantly reduced apoptosis rates, CD86 fluorescence intensity, and TNF-α and IL-1β levels in RAW264.7 cells, while markedly enhancing CD206 fluorescence intensity ( P <0.05). Animal experiment results showed that, compared with the model group, all dosage groups of Qingre huatan huoxue decoction and the atorvastatin group showed significantly reduced/down-regulated levels of TNF-α and IL-1β in serum, along with decreased aortic total and root plaque percentages, CD86 expression, and iNOS protein expression. CD206 expression and Arg-1, p-AMPK/AMPK, PPAR-γ protein expression were significantly up-regulated ( P <0.05). Pathological morphology of the aorta showed varying degrees of improvement. CONCLUSIONS The formula of Qingre huatan huoxue decoction exerts its anti-AS effects by regulating macrophage polarization, increasing the proportion of M2 macrophages, thereby effectively inhibiting AS plaque formation and reducing inflammatory responses.
8.Research progress on scleral remodeling in the prevention and control of myopia
Ruoshan GAO ; Yue ZHU ; Yueyao TANG ; Xue LIU ; Ruiping XIE
International Eye Science 2026;26(4):594-599
Myopia is a highly prevalent refractive error worldwide, with scleral remodeling accompanying excessive axial elongation being one of its core pathological features. As the crucial outer layer responsible for maintaining eyeball morphology and biomechanical stability, the sclera plays a decisive role in the pathogenesis and progression of myopia through abnormal alterations in its cellular components, extracellular matrix(ECM)metabolism, and regulatory networks. This review systematically summarizes recent research advances in scleral remodeling. It focuses on elucidating, from cellular and molecular perspectives, the mechanisms by which dysfunction of scleral fibroblasts, dysregulation of ECM metabolism(e.g., decreased collagen content, disrupted MMP-2/TIMP-2 balance), and complex regulatory networks involving multiple signaling pathways such as TGF-β, Wnt/β-catenin, and MAPK drive scleral thinning and reduced mechanical strength. Concurrently, the review provides a comprehensive analysis of the potential roles and existing controversies regarding factors like inflammatory responses and novel regulatory axes(e.g., FOXM1/METTL3/APOA1)in scleral remodeling. Furthermore, it discusses the current research status and application prospects of sclera-targeted intervention strategies(e.g., modulating specific pathways, supplementing exogenous factors), aiming to provide a theoretical basis and directional reference for a deeper understanding of myopia pathogenesis and the development of new prevention and treatment approaches.
9.Chinese expert consensus on the diagnosis and treatment of chronic pain after lung surgery with integrated Traditional Chinese and Western medicine (2026 edition)
Jichen QU ; Wentian ZHANG ; Jianqiao CAI ; Zhigang CHEN ; Bin LI ; Wei DAI ; Xiangwu WANG ; Yan LI ; Xiang LÜ ; ; Yongfu ZHU ; Mingran XIE ; Sufang ZHANG ; Lei JIANG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(04):522-534
Chronic post-surgical pain (CPSP) is a common long-term complication following lung surgery. Its high incidence significantly impacts patients’ quality of life and functional recovery, and imposes a substantial socioeconomic burden. This consensus aims to systematically establish a standardized integrated Chinese and Western medicine diagnostic and treatment framework for chronic post-lung surgery pain (CPLSP). Based on the latest domestic and international evidence-based medical research and multidisciplinary clinical experience, the working group comprehensively elaborates on core issues regarding CPLSP, including its definition, epidemiology, pathogenesis, clinical assessment, Western medical treatment, traditional Chinese medicine (TCM) treatment, and integrated strategies. The consensus emphasizes a patient-centered approach, adhering to the principles of multimodality, individualization, and stepwise management, highlighting the synergistic advantages of integrating Chinese and Western medicine throughout the entire perioperative management cycle encompassing "perioperative anti-inflammation, acute analgesia, and chronic rehabilitation." Through systematic literature retrieval and evidence integration, a total of 9 core recommendations were established to provide scientifically sound and clinically practical guidance.
10.Safety of using glucagon-like peptide-1 receptor agonists before gastrointestinal endoscopy:an overview of systematic reviews
Yuzhou LI ; Shuying ZOU ; Xiangnan ZHU ; Li TANG ; Peng LI ; Caixia XIE
China Pharmacy 2026;37(6):806-811
OBJECTIVE To conduct a systematic review concerning the safety of using glucagon-like peptide-1 receptor agonists (GLP-1RA) before gastrointestinal endoscopy. METHODS Chinese and English databases including CNKI, Wanfang Data, VIP, CBM, and PubMed were searched to collect systematic reviews and meta-analyses on the safety of using GLP-1RA before gastrointestinal endoscopy, with a search period from the inception to September 30, 2025. Report quality, methodological quality, risk of bias, and evidence quality were assessed using the PRISMA 2020 statement, AMSTAR 2 scale, ROBIS tool, and GRADE tool, respectively. Corrected covered area (CCA) was used to quantitatively evaluate the degree of outcome overlap, and a comprehensive quality analysis was performed on the quantitative results of systematic reviews/meta-analyses. RESULTS Ten studies were included. All 10 stu dies had some information deficiencies (15.5-19.5 points), and were at high risk of bias; 9 studies were extremely low methodological quality, while 1 study was low. In terms of evidence quality, among 88 outcome indexes, there was 1 moderate-level index, 28 low-level indexes, and 59 extremely low-level indexes. The CCA values of the incidence of residual gastric contents, aspiration, endoscopy interruption, repeated endoscopy, inadequate bowel preparation and Boston Bowel Preparation Scale scores were 37.30%, 35.00%, 35.00%, 50.00%, 29.60% and 20.00%, respectively. Results of comprehensive quality analysis showed that compared with the control group, the incidence of residual gastric contents, endoscopy interruption and repeated endoscopy were increased significantly in the intervention group, along with a notably prolonged gastric emptying time and a significantly lower score of Boston Bowel Preparation Scale ( P <0.05). However, the study results regarding the effects of GLP-1RA on the incidence of aspiration and inadequate bowel preparation were inconsistent. CONCLUSIONS The use of GLP-1RA before gastrointestinal endoscopy can increase certain safety risks, including residual gastric contents, endoscopy interruption and repeated endoscopy, prolong gastric emptying time, and reduce the quality of bowel preparation. However, the effects on aspiration and inadequate bowel preparation remain controversial. The reports included in systematic reviews/meta-analyses exhibited low quality in reporting, methodology and evidence, with high risk of bias. Therefore, conclusions should be interpreted with caution.

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