1.Studies on glycosides from the n-butanol fraction of Aconitum tanguticum
Mengyuan ZHAO ; Siyang FANG ; anting LI ; Qien LI ; Ke PAN ; Zhiqi YIN
Journal of China Pharmaceutical University 2026;57(2):189-195
In order to investigate the chemical constituents of glycosides in Aconitum tanguticum (Maxim.) Stapf, column chromatographic techniques such as silica gel, ODS, Sephadex LH-20, and semi-preparative high performance liquid chromatography were used to afford eight glycosides from the n-butanol fraction of the 85% ethanol extract of Aconitum tanguticum. Based on the physicochemical properties and spectral data, these compounds were identified as N-4-O-(β-D-glucopyranosyl)-phenethylbenzamide (1), N-(2'-β-D-glucopyranosyl-5'-methoxysalicyl)-4-hydroxy-3-methoxyanthranilic acid methyl ester (2), N-(2'-β-D-glucopyranosyl-5'-hydroxysalicyl)-4-hydroxy-3-methoxyanthranilic acid methyl ester (3), salidroside (4), benzyl primeveroside (5), phenethanol-β-D-xylose-(1''→6')-β-D-glucopyranoside (6), 4-dihydroxyphenethoxy-8-O-β-D-[6-O-(4-O-β-D-glucopyranosyl)-feruloyl]-glucopyranoside (7), phenethanol-α-L-arabinopyranosyl-(1''→6')-β-D-glucopyranoside (8). Among them, compounds 1 and 2 were new compounds, and compounds 5,6,8 were isolated from Aconitum tanguticum for the first time.
2.Gender-specific patterns of external occipital protuberance hyperplasia: associations with nuchal ligament ossification and cervical sagittal imbalance in myelopathy patients
Zhaoyang GONG ; Hanqiu SUN ; Dachuan LI ; Xiao LU ; Siyang LIU ; Ximeng WANG ; Xinlei XIA ; Feizhou LYU ; Jianyuan JIANG ; Fei ZOU ; Hongli WANG ; Xiaosheng MA
Asian Spine Journal 2026;20(1):10-19
Methods:
Cervical radiographs were analyzed. EOP hyperplasia was classified into three subtypes with standardized length measurements. Variables encompassed demographics, ONL-related indices, and sagittal parameters. Subtype comparisons and multivariate regression analyses (with EOP length as dependent variable) were conducted.
Results:
Analysis of 187 CSM patients (64.2% male) identified gender-specific patterns: males exhibited greater EOP length (9.4±6.8 mm vs. 4.6±3.4 mm, p<0.001). Type III EOP demonstrated male predominance (82.4% vs. type I 31.8%, type II 51.4%; p<0.001), with associated longer hyperplasia length (11.6±6.6 mm vs. type II 5.1±1.9 mm, p<0.001). Type III EOP was associated with higher ONL prevalence (type III 64.8% vs. type I 45.5%, type II 41.9%; p=0.010) and longer ONL osteophyte length (type III 18.8±9.8 mm vs. type I 14.2±8.1 mm, type II 14.2±9.4 mm; p=0.046). Multivariate regression confirmed male sex (β=–3.82, p=0.009), ONL osteophyte length (β=0.16, p=0.017), T1 slope (β=0.27, p=0.041), and spino-cranial angle (β=–0.19, p=0.009) as factors independently associated with EOP length (adjusted R²=0.382).
Conclusions
Severe EOP hyperplasia exhibits a male-predominant distribution pattern and demonstrates significant radiological associations with ONL and cervical sagittal imbalance in CSM patients. These findings advocate for EOP evaluation in clinical evaluations to identify high-risk biomechanical profiles.
3.Inverse Association Between Alcohol Consumption and Parkinson’s Disease Risk and Identification of RIT2 as a Linked Biomarker
Wei LU ; Xiu-Li CHENG ; Xiao-Yun PAN ; Dan-Dan YANG ; Hui-Ling ZOU ; Li-Guo DONG ; Yi-Liang WEI ; Gui-Yun CUI
Progress in Biochemistry and Biophysics 2026;53(6):1723-1733
ObjectiveAs a common lifestyle habit, alcohol consumption has a controversial association with the onset of Parkinson’s disease (PD). To demonstrate the correlation between alcohol consumption and PD and to identify associated genes, we integrated findings from clinical surveys, genomics, transcriptomics, and animal experiments. MethodsWe investigated the alcohol consumption rates (including both before and after disease onset) among 244 PD patients in China and 177 PD patients from the U.S. NHANES database. Mendelian randomization (MR) analysis was performed using genome-wide association study (GWAS) data for three alcohol-related traits and seven PD-related datasets from the MRC IEU OpenGWAS database. Transcriptomic data from the substantia nigra of PD patients were obtained from three GEO datasets (GSE7621, GSE20141, and GSE49036) to analyze RIT2 gene transcription. Finally, three groups of animal experiments (water/20% ethanol/20% liquor, with 4 C57BL/6J mice per group) were conducted to examine changes in brain RIT2 gene expression and transcriptomic profiles following alcohol consumption. ResultsThe alcohol consumption rates among PD patients in China and the U.S. (9%-18.87%) were significantly lower than the general population rates of 15%-45% in their respective regions (P<0.001), suggesting a possible negative association between alcohol consumption and PD. Subsequently, in 21 bidirectional MR analyses using 3 alcohol-related GWAS datasets and 7 PD-related GWAS datasets, the forward MR analyses (alcohol intake as exposure, PD as outcome) yielded 12 negative associations (ORIVW<1) and 9 positive associations (ORIVW>1). Among these, only two negative associations reached statistical significance: alcohol intake frequency (ORIVW=0.75, 95% CI: 0.60-0.93, P=0.010) and alcohol consumption (ORIVW=0.20, 95% CI: 0.05-0.83, P=0.026). The forward MR analysis (alcohol intake→PD) identified 235 SNPs, annotated to 316 genes, while the reverse MR analyses (PD→alcohol intake) identified 37 SNPs, annotated to 53 genes. Notably, only the RIT2 gene appeared in both the forward and reverse MR analyses (alcohol intake→PD: rs28597806, rs8083110; PD→alcohol intake: rs4588066). RIT2 is selectively expressed in the human brain (FPKM: 5.259±2.103), with low or no expression in peripheral tissues (FPKM: <1). Analysis of three human substantia nigra transcriptomic datasets revealed a decreasing trend in RIT2 gene expression in PD patients (GSE20141 array signal: 3.49±1.23 vs. 2.33±0.87, P=0.044). Animal experiments demonstrated that administration of 20% ethanol or 20% liquor (approximately 8% ethanol) stimulated a >2-fold upregulation of RIT2 gene expression in the mouse brain. Furthermore, transcriptomic sequencing revealed that the two alcohol-treated groups exhibited 96 (20% ethanol vs. water control) and 4 (20% liquor vs. water control) differentially expressed genes, respectively, indicating that low-dose alcohol consumption can achieve RIT2 upregulation while minimizing impact on other brain genes. In addition to its anti-infective effects, low-dose alcohol consumption primarily influences signaling pathways related to neurodegenerative diseases such as PD and Prion diseases. ConclusionAlcohol consumption is generally considered as a harmful lifestyle habit. However, some studies have also shown a lower risk of mortality among individuals who consume low doses of alcohol (100 g/week of ethanol) or drink occasionally. Currently, one of the research focuses on alcohol consumption is whether the human body can benefit from low-dose alcohol intake. This study provides new evidence supporting a negative association between alcohol consumption and PD, and for the first time, through MR analysis, identifies the RIT2 gene as a potential mediator of the effect of alcohol consumption on PD. RIT2 is selectively expressed in the human brain. Building upon existing evidence indicating downregulated RIT2 gene expression in PD pathogenesis, our experiments confirm that low-dose alcohol consumption can upregulate RIT2 expression in the brain. In brief, alcohol consumption may suppress the pathogenesis of PD by upregulating RIT2 expression in the substantia nigra. China is facing a serious problem of population aging. This study offers important insights for long-term PD prevention and treatment strategies, with the aim of benefiting more potential PD patients through lifestyle modifications, thereby improving the quality of life of the aging population and reducing the economic burden on healthcare.
4.Extraction of tetralones and quinic acids from Cyclocarya paliurus
Yu YE ; Siyang FANG ; Xiao LI ; Lei WANG ; Jian ZHANG ; Ke PAN ; Zhiqi YIN
Journal of China Pharmaceutical University 2026;57(3):314-321
Chemical constituents of n-butanol fraction of ethanol extract from the leaves of Cyclocarya paliurus (Batalin) Iljinskaja were studied. Ten compounds were purified by silica gel, MCI, ODS, Sephadex LH-20 column chromatography and semi-preparative high-performance liquid chromatography. Based on the physicochemical properties and spectroscopic data, these compounds were identified as (4S)-4,8-dihydroxy-α-tetralone-5-[6′-(3′′,5′′-dimethoxy-(E)-p-coumaroyl)]-β-D-glucopyranoside (1), (4S)-4,8-dihydroxy-α-tetralone-5-[6′-(E)-feruloyl]-β-D-glucopyranoside (2), (1S,3R,4S,5R)-4,5-di-O-caffeoyl quinic acid methyl ester (3), (1R,3R,4S,5R)-3,4-di-O-caffeoyl quinic acid methyl ester (4), (3R,5R)-3,4,5-tri-O-caffeoylquinic acid methyl ester (5), (1R,3R,4S,5R)-3-O-caffeoyl-5-O-p-coumaroyl quinic acid methyl ester (6), (1R,3R,4S,5R)-3-O-p-coumaroy-4-O-caffeoyl quinic acid methyl ester (7), (1R,3R,4S,5R)-3-O-caffeoyl-4-O-p-coumaroy quinic acid methyl ester (8), (3R,5R)-3,5-di-O-caffeoyl quinic acid methyl ester (9) and (1S,3R,4R,5R)-4-O-caffeoyl-5-O-feruloyl quinic acid methyl ester (10). Among them, compound 1 was a new compound, and compounds 3–10 were isolated from the genus Cyclocarya for the first time.
5.Diabetic vascular calcification inhibited by soluble epoxide hydrolase gene deletion via regressing NID2-mediated IGF2-ERK1/2 signaling pathway.
Yueting CAI ; Shuiqing HU ; Jingrui LIU ; Jinlan LUO ; Wenhua LI ; Jiaxin TANG ; Siyang LIU ; Ruolan DONG ; Yan YANG ; Ling TU ; Xizhen XU
Chinese Medical Journal 2025;138(20):2657-2668
BACKGROUND:
Epoxyeicosatrienoic acids (EETs), which are metabolites of arachidonic acid catalyzed by cytochrome P450 epoxygenase, are degraded into inactive dihydroxyeicosatrienoic acids by soluble epoxide hydrolase (sEH). Many studies have revealed that sEH gene deletion exerts protective effects against diabetes. Vascular calcification is a common complication of diabetes, but the potential effects of sEH on diabetic vascular calcification are still unknown.
METHODS:
The level of aortic calcification in wild-type and Ephx2-/- C57BL/6 diabetic mice induced with streptozotocin was evaluated by measuring the aortic calcium content through alizarin red staining, immunohistochemistry staining, and immunofluorescence staining. Mouse vascular smooth muscle cell lines (MOVAS cells) treated with β-glycerol phosphate (0.01 mol/L) plus advanced glycation end products (50 mg/L) were used to investigate the effects of sEH inhibitors or sEH knockdown and EETs on the calcification of vascular smooth muscle cells, which was detected by Western blotting, alizarin red staining, and Von Kossa staining.
RESULTS:
sEH gene deletion significantly inhibited diabetic vascular calcification by increasing levels of EETs in the aortas of mice. EETs (especially 11,12-EET and 14,15-EET) efficiently prevented the osteogenic transdifferentiation of MOVAS cells by decreasing nidogen-2 (NID2) expression. Interestingly, suppressing sEH activity by small interfering ribonucleic acid or specific inhibitors did not block osteogenic transdifferentiation of MOVAS cells induced by β-glycerol phosphate and advanced glycation end products. NID2 overexpression significantly abolished the inhibitory effect of sEH gene deletion on diabetic vascular calcification. Moreover, NID2 overexpression mediated by adeno-associated virus 9 vectors markedly increased insulin-like growth factor 2 (IGF2) and phospho-ERK1/2 expression in MOVAS cells. Overall, sEH gene knockout inhibited diabetic vascular calcification by decreasing aortic NID2 expression and, then, inactivating the downstream IGF2-ERK1/2 signaling pathway.
CONCLUSIONS
sEH gene deletion markedly inhibited diabetic vascular calcification through repressed osteogenic transdifferentiation of vascular smooth muscle cells mediated by increased aortic EET levels, which was associated with decreased NID2 expression and inactivation of the downstream IGF2-ERK1/2 signaling pathway.
Animals
;
Mice
;
Vascular Calcification/metabolism*
;
Mice, Inbred C57BL
;
Epoxide Hydrolases/metabolism*
;
Diabetes Mellitus, Experimental/genetics*
;
Male
;
Gene Deletion
;
MAP Kinase Signaling System/genetics*
;
Cell Line
;
Immunohistochemistry
;
Muscle, Smooth, Vascular/metabolism*
;
Signal Transduction/genetics*
;
Mice, Knockout
6.Comprehensive Quality Evaluation of Camptothecae Fructus Medicinal Materials Based on HPLC-QAMS Multi-Components Quantification Combined with OPLS-DA and Weighted TOPSIS Model
Siyang LI ; Gengdong LI ; Yuhui YAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(5):1376-1385
Objective To screen the differential markers affecting their quality,and sort their quality,a method for simultaneous detection of 9 components in Camptothecae Fructus from different producing areas was established.Methods Reflux extraction was performed on 18 batches of Camptothecae Fructus from 7 provinces,and the extracts were detected by HPLC.A orthogonal partial least squares discriminant analysis and weighted TOPSIS method were used to establish a quality evaluation model for Camptothecae Fructus,and the quality differences were comprehensively evaluated.Results When the 9 components were in the 0.51-12.75,0.23-5.75,3.21-80.25,4.45-111.25,1.88-47.00,0.41-10.25,2.05-51.25,0.34-8.50 and 7.95-198.75 μg·mL-1,their linear relationships were good(r>0.999).The average recovery were 96.95%-100.06%with the RSDs<2.0%.18 batches of samples were clustered into 3 categories.Vincosamide,10-hydroxycamptothecin,camptothecin 10-methoxycamptothecin and pumiloside may be the main potential markers affecting the quality of Camptothecae Fructus.The analysis results of the weighted TOPSIS method revealed that the closeness(Jb)for evaluating the quality of 18 batches of Camptothecae Fructus ranged from 0.1090 to 0.7385,with S14 achieving the highest value of 0.7385.Conclusion A method for simultaneous determination of 9 components in Camptothecae Fructus was established,which is simple and accurate.OPLS-DA and weighted TOPSIS method can be used to evaluate the quality difference of Camptothecae Fructus.
7.The effectiveness and safety of a fully biodegradable occluder for the treatment of ventricular septal defects through percutaneous and transthoracic surgical approaches
Siyang FAN ; Liyun ZHAO ; Bin LI ; Juan CONG ; Chongyang YAN ; Yuhang CAO ; Guangyuan SONG ; Shubo SONG
Chinese Journal of Applied Clinical Pediatrics 2025;40(7):509-514
Objective:To analyze the efficacy and safety of a fully biodegradable occluder for the treatment of ventricular septal defects through percutaneous and transthoracic strategies.Methods:A case series study was conducted.The clinical data of 38 pediatric patients with a ventricular septal defect treated with a fully biodegradable occluder at Central China Fuwai Hospital from January 2023 to July 2024 were retrospectively analyzed.Among these patients, 15 received the percutaneous approach(percutaneous approach group) and the other 23 adopted the transthoracic approach(transthoracic approach group).The diagnosis was confirmed by transthoracic echocardiography before operation in all patients.The percutaneous approach was defined as establishing a venous-arterial track through X-ray and then placing an occluder under the guidance of transthoracic echocardiograph.The transthoracic approach was achieved by establishing a delivery track with a special hollow bougie through a small right subaxillary incision under the real-time guidance of esophageal ultrasound and then delivery and put an occluder.The clinical data of the patients, including general characteristics, electrocardiograms, echocardiograms and the biodegradable occluder system were collected and analyzed.Categorical variables were tested using the chi-square or Fisher′s exact test.Continuous variables were verified using the t-test or Mann-Whitney U test. Results:The patients were aged (5.7±3.9) years on average, with an average weight of 19.5(14.9, 25.9) kg.There were 39.5%(15 cases) of males among the patients included.The average size of the ventricular septal defect was 4.1(4.0, 5.0) mm.A simple perimembrane ventricular septal defect was detected in 29 patients (76.3%), concomitant membranous aneurysm in 4 patients (10.5%), an intracristal ventricular septal defect in 3 patients (7.9%), and a muscular ventricular septal defect in 2 patients (5.3%).Preoperative aortic and tricuspid valve regurgitations accounted for 5.3%(2/38) and 81.6%(31/38), respectively.The average age was (9.0±3.9) years in the percutaneous approach group and (3.6±1.9) years in the transthoracic approach group.In terms of the cardiac structure, the percutaneous approach group had smaller Z values of the left atrial anterior-to-posterior diameter (-0.5±0.6 vs.0.5±1.0, P<0.01) and the left ventricular end-diastolic diameter (-0.5±1.1 vs.0.8±0.8, P<0.01), and a smaller ventricular septal defect [4.0(3.9, 4.2) mm vs.4.5(4.0, 5.5) mm, P=0.01] than the transthoracic approach group.Regarding the operation, the percutaneous approach group had a larger difference between the waist diameter of the selected occluder and the diameter of the ventricular septal defect [2.8(2.0, 3.0) mm vs.2.0(1.5, 2.5) mm, P=0.02], shorter operative time [(61.5±27.3) minutes vs.(91.5±31.4) minutes, P=0.01], and a shorter hospital stay [8(5, 9) days vs.12(9, 15) days, P<0.01] than the transthoracic approach group.Both groups achieved immediate occlusion postoperatively, with no residual shunts and no grade Ⅲ atrioventricular conduction block.Five new cases of bundle branch blocks and 1 case of trivial aortic valve regurgitation occurred in the transthoracic approach group. Conclusions:Both percutaneous and transthoracic approaches are safe and effective in interventional closure of ventricular septal defects, but the former is more applicable to slightly older or heavier patients with a smaller ventricular septal defect, who need a larger occluder.
8.Summary of the best evidence for non-surgical treatment and management of patients with pelvic organ prolapse
Linqian HE ; Xixi LI ; Hongjin WU ; Siyang LAN ; Hong JIANG
Chinese Journal of Modern Nursing 2025;31(4):453-461
Objective:To retrieve and summarize the evidence regarding the non-surgical treatment and management of patients with pelvic organ prolapse (POP) .Methods:According to the "6S" evidence pyramid model, clinical guidelines, expert consensus, systematic reviews, clinical decisions, and clinical best practices related to the non-surgical treatment and management of patients with POP were systematically searched in databases and websites such as UpToDate, National Institute for Health and Clinical Excellence, Australia Joanna Briggs Institute (JBI) Evidence-Based Health Care Center Database, Guidelines International Network, National Guideline Clearinghouse, PubMed, China National Knowledge Infrastructure. The search period was from the establishment of the database to January 31, 2024. Two investigators independently conducted literature quality assessment and extracted relevant information according to the Appraisal of Guidelines for Research and EvaluationⅡ and the Australia JBI Evidence-Based Health Care Center evaluation tools. The Australia JBI quality level of evidence and grade of recommendation (2014 version) were used for evidence integration and grading.Results:A total of 15 papers were finally included, including three clinical decisions, eight guidelines, two best practices, one expert consensus, and one systematic review. A total of 39 pieces of best evidence were summarized in nine areas of examination and assessment, treatment plan, lifestyle, expectant therapy, functional exercise, physical therapy, pessary, drug therapy, and follow-up observation.Conclusions:This study summarizes the best evidence on the non-surgical treatment and management of POP patients, which is scientific and comprehensive, and provides an evidence-based basis for medical and nursing staff to develop non-surgical treatment and management protocols for POP patients and self-management of POP patients.
9.Exploration of prevention and control strategies for chikungunya fever and other aedes mosquito-borne diseases
Man LIU ; Xiaohua TAN ; Siyang JIANG ; Yihong LI ; Meng ZHANG ; Min KANG
Chinese Journal of Experimental and Clinical Virology 2025;39(5):543-547
Chikungunya fever is spreading continuously worldwide,posing a growing public health challenge alongside other arboviral diseases. This article systematically reviews the epidemiological characteristics of chikungunya fever,analyzes the pandemic potential of Aedes mosquito-borne diseases and discusses integrated prevention and control strategies for China in the context of increasing importation risk,drawing on containment practices from multiple countries and regions.
10.Comprehensive Quality Evaluation of Camptothecae Fructus Medicinal Materials Based on HPLC-QAMS Multi-Components Quantification Combined with OPLS-DA and Weighted TOPSIS Model
Siyang LI ; Gengdong LI ; Yuhui YAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(5):1376-1385
Objective To screen the differential markers affecting their quality,and sort their quality,a method for simultaneous detection of 9 components in Camptothecae Fructus from different producing areas was established.Methods Reflux extraction was performed on 18 batches of Camptothecae Fructus from 7 provinces,and the extracts were detected by HPLC.A orthogonal partial least squares discriminant analysis and weighted TOPSIS method were used to establish a quality evaluation model for Camptothecae Fructus,and the quality differences were comprehensively evaluated.Results When the 9 components were in the 0.51-12.75,0.23-5.75,3.21-80.25,4.45-111.25,1.88-47.00,0.41-10.25,2.05-51.25,0.34-8.50 and 7.95-198.75 μg·mL-1,their linear relationships were good(r>0.999).The average recovery were 96.95%-100.06%with the RSDs<2.0%.18 batches of samples were clustered into 3 categories.Vincosamide,10-hydroxycamptothecin,camptothecin 10-methoxycamptothecin and pumiloside may be the main potential markers affecting the quality of Camptothecae Fructus.The analysis results of the weighted TOPSIS method revealed that the closeness(Jb)for evaluating the quality of 18 batches of Camptothecae Fructus ranged from 0.1090 to 0.7385,with S14 achieving the highest value of 0.7385.Conclusion A method for simultaneous determination of 9 components in Camptothecae Fructus was established,which is simple and accurate.OPLS-DA and weighted TOPSIS method can be used to evaluate the quality difference of Camptothecae Fructus.

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