1.Network pharmacology and animal experiments reveal molecular mechanisms of Cordyceps sinensis in ameliorating heart aging and injury in mice by regulating Nrf2/HO-1/NF-κB pathway.
Si-Yi LIU ; Yue TU ; Wei-Ming HE ; Wen-Jie LIU ; Kai-Zhi WEN ; Cheng-Juan LI ; Chao HAN ; Xin-Yu LIANG
China Journal of Chinese Materia Medica 2025;50(4):1063-1074
This study aims to explore the effects and mechanisms of the traditional Chinese medicine Cordyceps sinensis(CS) in ameliorating heart aging and injury in mice based on animal experiments and network pharmacology. A mouse model of heart aging was established by continuously subcutaneous injection of D-galactose(D-gal). Thirty mice were randomly assigned into a normal group, a model group, a low-dose CS(CS-L) group, a high-dose CS(CS-H) group, and a vitamin E(VE) group. Mice in these groups were administrated with normal saline, different doses of CS suspension, or VE suspension via gavage daily. After 60 days of treatment with D-gal and various drugs, all mice were euthanized, and blood and heart tissue samples were collected for determination of the indicators related to heart aging and injury in mice. Experimental results showed that both high and low doses of CS and VE ameliorated the aging phenotype, improved the heart index and myocardial enzyme spectrum, restored the expression levels of proteins associated with cell cycle arrest and senescence-associated secretory phenotypes(SASP), and alleviated the fibrosis and histopathological changes of the heart tissue in model mice. From the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP),259 active ingredients of CS were retrieved. From Gene Cards and OMIM, 2 568 targets related to heart aging were identified, and 133common targets shared by CS and heart aging were obtained. The Gene Ontology(GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes( KEGG) pathway enrichment revealed that the pathways related to heart aging involved oxidative stress,apoptosis, inflammation-related signaling pathways, etc. The animal experiment results showed that both high and low doses of CS and VE ameliorated oxidative stress and apoptosis in the heart tissue to varying degrees in model mice. Additionally, CS-H and VE activated the nuclear factor E2-related factor 2(Nrf2)/heme oxygenase-1(HO-1) pathway and inhibited the expression of key proteins in the nuclear factor-κB(NF-κB) pathway in the heart tissue of model mice. In conclusion, this study demonstrated based on network pharmacology and animal experiments that CS may alleviate heart aging and injury in aging mice by reducing oxidative stress,apoptosis, and inflammation in the heart via the Nrf2/HO-1/NF-κB pathway.
Animals
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Cordyceps/chemistry*
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Mice
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NF-E2-Related Factor 2/genetics*
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NF-kappa B/genetics*
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Aging/genetics*
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Male
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Signal Transduction/drug effects*
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Network Pharmacology
;
Drugs, Chinese Herbal/pharmacology*
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Heme Oxygenase-1/genetics*
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Heart/drug effects*
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Humans
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Myocardium/metabolism*
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Membrane Proteins/genetics*
2.Dahuang Zhechong Pills delay heart aging by reducing cardiomyocyte apoptosis via PI3K/AKT/HIF-1α signaling pathway.
Wen-Jie LIU ; Yue TU ; Wei-Ming HE ; Si-Yi LIU ; Liu-Yun-Xin PAN ; Kai-Zhi WEN ; Cheng-Juan LI ; Chao HAN
China Journal of Chinese Materia Medica 2025;50(5):1276-1285
This study aimed to investigate the effect of Dahuang Zhechong Pills(DHZCP) in delaying heart aging(HA) and explore the potential mechanism. Network pharmacology and molecular docking were employed to explore the targets and potential mechanisms of DHZCP in delaying HA. Furthermore, in vitro experiments were conducted with the DHZCP-containing serum to verify key targets and pathways in D-galactose(D-gal)-induced aging of cardiomyocytes. Active components of DHZCP were searched against the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCSMP), and relevant targets were predicted. HA-related targets were screened from the GeneCards, Online Mendelian Inheritance in Man(OMIM), and DisGeNET. The common targets shared by the active components of DHZCP and HA were used to construct a protein-protein interaction network in STRING 12.0, and core targets were screened based on degree in Cytoscape 3.9.1. Metaspace was used for Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analyses of the core targets to predict the mechanisms. Molecular docking was performed in AutoDock Vina. The results indicated that a total of 774 targets of the active components of DHZCP and 4 520 targets related to HA were screened out, including 510 common targets. Core targets included B-cell lymphoma 2(BCL-2), serine/threonine kinase 1(AKT1), and hypoxia-inducible factor 1 subunit A(HIF1A). The GO and KEGG enrichment analyses suggested that DHZCP mainly exerted its effects via the phosphatidylinositol 3-kinase(PI3K)/AKT signaling pathway, HIF-1α signaling pathway, longevity signaling pathway, and apoptosis signaling pathway. Among the pathways predicted by GO and KEGG enrichment analyses, the PI3K/AKT/HIF-1α signaling pathway was selected for verification. The cell-counting kit 8(CCK-8) assay showed that D-gal significantly inhibited the proliferation of H9c2 cells, while DHZCP-containing serum increased the viability of H9c2 cells. SA-β-gal staining revealed a significant increase in the number of blue-green positive cells in the D-gal group, which was reduced by DHZCP-containing serum. TUNEL staining showed that DHZCP-containing serum decreased the number of apoptotic cells. After treatment with DHZCP-containing serum, the protein levels of Klotho, BCL-2, p-PI3K/PI3K, p-AKT1/AKT1, and HIF-1α were up-regulated, while those of P21, P16, BCL-2 associated X protein(Bax), and cleaved caspase-3 were down-regulated. The results indicated that DHZCP delayed HA via multiple components, targets, and pathways. Specifically, DHZCP may delay HA by reducing apoptosis via activating the PI3K/AKT/HIF-1α signaling pathway.
Proto-Oncogene Proteins c-akt/genetics*
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Drugs, Chinese Herbal/pharmacology*
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Signal Transduction/drug effects*
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Apoptosis/drug effects*
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Myocytes, Cardiac/cytology*
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Hypoxia-Inducible Factor 1, alpha Subunit/genetics*
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Phosphatidylinositol 3-Kinases/genetics*
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Animals
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Rats
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Humans
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Molecular Docking Simulation
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Aging/metabolism*
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Protein Interaction Maps/drug effects*
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Heart/drug effects*
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Network Pharmacology
3.Research progress in machine learning in processing and quality evaluation of traditional Chinese medicine decoction pieces.
Han-Wen ZHANG ; Yue-E LI ; Jia-Wei YU ; Qiang GUO ; Ming-Xuan LI ; Yu LI ; Xi MEI ; Lin LI ; Lian-Lin SU ; Chun-Qin MAO ; De JI ; Tu-Lin LU
China Journal of Chinese Materia Medica 2025;50(13):3605-3614
Traditional Chinese medicine(TCM) decoction pieces are a core carrier for the inheritance and innovation of TCM, and their quality and safety are critical to public health and the sustainable development of the industry. Conventional quality control models, while having established a well-developed system through long-term practice, still face challenges such as relatively long inspection cycles, insufficient objectivity in characterizing complex traits, and urgent needs for improving the efficiency of integrating multidimensional quality information when confronted with the dual demands of large-scale production and precision quality control. With the rapid development of artificial intelligence, machine learning can deeply analyze multidimensional data of the morphology, spectroscopy, and chemical fingerprints of decoction pieces by constructing high-dimensional feature space analysis models, significantly improving the standardization level and decision-making efficiency of quality evaluation. This article reviews the research progress in the application of machine learning in the processing, production, and rapid quality evaluation of TCM decoction pieces. It further analyzes current challenges in technological implementation and proposes potential solutions, offering theoretical and technical references to advance the digital and intelligent transformation of the industry.
Machine Learning
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Drugs, Chinese Herbal/standards*
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Quality Control
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Medicine, Chinese Traditional/standards*
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Humans
4.Single-position O-arm X-ray navigation assisted oblique lateral interbody fusion combined with minimally invasive percutaneous pedicle nail internal fixation for lumbar spondylolisthesis.
Kai-Kai TU ; Hui FEI ; Yu-Liang LOU ; Can-Feng WANG ; Chang-Ming LI ; Li-Shen ZHOU ; Feng HONG
China Journal of Orthopaedics and Traumatology 2025;38(5):447-453
OBJECTIVE:
To investigate the early clinical efficacy of single-position O-arm navigation-assisted oblique lateral interbody fusion(OLIF) combined with minimally invasive percutaneous pedicle screw fixation(PPS) in the treatment of lumbar spondylolisthesis.
METHODS:
A retrospective analysis was conducted on 22 patients with lumbar spondylolisthesis who underwent OLIF-PPS surgery including 11 males and 11 females with a mean age of (64.6±1.5) years old ranging from 49 to 80 years old between April 2021 and June 2023. All patients presented with lumbosacral pain, lower limb radiating pain, numbness, and had poor responses to conservative treatment. Surgical time, intraoperative blood loss, hospital stay, and postoperative complications were recorded. Clinical outcomes were evaluated using the visual analogue scale(VAS) and Oswestry disability index(ODI) preoperatively at 3 days after operation and the final follow-up. Standing lumbar anteroposterior and lateral X-rays were performed to measure disc height(DH), slippage degree, vertebral reduction rate, pedicle screw accuracy, and cage subsidence.
RESULTS:
All surgeries were successfully completed with a mean follow-up of (27.1±2.2) months (range 18 to 36 months). The mean surgical time was (76.1±12.2) min (range 60 to 93 min), intraoperative blood loss was (86.3±32.2) ml (range 40 to 113 ml), and hospital stay was (7.1±1.2) days. Postoperative VAS significantly improved from (7.2±0.7) preoperatively to (2.3±0.5) at 3 days after operation and (1.7±0.2) at the final follow-up (P<0.05). ODI decreased from (68.5±7.2)% preoperatively to (30.3±3.1)% at 3 days after operation and (16.6±1.6)% at the final follow-up (P<0.05). DH increased from (8.5±1.7) mm preoperatively to (18.1±1.4) mm at 3 days after operation and (17.2±1.1) mm at the final follow-up (P<0.05). Slippage degree improved from (24.1±4.6)% preoperatively to (10.3±4.2)% at 3 days after operation and (10.1±3.2)% at the final follow-up (P<0.05). A total of 88 pedicle screws were implanted with an excellent rate of 98% (86/88). Complications included transient left hip flexion weakness (2 cases) and left anteromedial thigh pain (1 case), all resolved during follow-up. No incision hematoma, infection, screw loosening, or cage subsidence occurred.
CONCLUSION
Single-position O-arm navigation-assisted OLIF combined with PPS demonstrates satisfactory early clinical efficacy for lumbar spondylolisthesis, with advantages including minimal invasiveness, significant pain relief, effective vertebral reduction, and low complication rates.
Humans
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Male
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Female
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Spondylolisthesis/diagnostic imaging*
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Middle Aged
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Aged
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Spinal Fusion/methods*
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Lumbar Vertebrae/diagnostic imaging*
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Minimally Invasive Surgical Procedures/methods*
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Pedicle Screws
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Aged, 80 and over
;
Retrospective Studies
5.Association of angiotensin Ⅱ type 1 receptor autoantibody and sperm motility in human semen.
Dao-Qin TU ; Yu-Huan YANG ; Gui-Fang YANG ; Yi-Nan ZHANG ; Yao CHEN ; Xue-Ming LI ; Yu-Hui SHI ; Xiao-Li YANG ; Feng WANG
National Journal of Andrology 2025;31(5):387-394
OBJECTIVE:
To investigate the relationship between angiotensin Ⅱ type 1 receptor autoantibody (AT1-AA) and semen parameters. Methods: The semen samples of 820 male patients who were treated in the Reproductive Medicine Center of Taiyuan Central Hospital from August 2022 to August 2023 were retrospectively analyzed. The levels of AT1-AA and Ang Ⅱ of semen were detected by ELISA, and the function of AT1-AA was detected by cardiomyocyte beating assay in suckling rats. The patients were divided into low group, median group and high group according to the OD values of AT1-AA. The differences in general data and semen parameters between different groups were analyzed. And the correlation between AT1-AA level and semen parameters in semen of all study subjects was analyzed by the method of Spearman analysis. And the relationships between AT1-AA OD value, Ang Ⅱ level and semen parameters in the AT1-AA high value group were analyzed as well.
RESULTS:
AT1-AA was present in semen with good function. There was no significant difference in the general data of patients in different AT1-AA levels (P>0.05). In the comparison of semen parameters among the groups with different levels of AT1-AA, there were differences in sperm concentration, PR concentration, NP%, and ALH among the three groups (P<0.05). And AT1-AA OD value was positively correlated with total sperm count, sperm concentration, PR concentration, and NP%, and negatively correlated with semen volume (P<0.05). In the AT1-AA high value group, the OD value of AT1-AA in semen was negatively correlated with inactive sperm, and positively correlated with total motility ([PR+NP]%), curve rate, mean path rate, and ALH. However, there was no correlation between the level of Ang Ⅱ in semen and semen parameters (P>0.05).
CONCLUSION
The presence of AT1-AA in semen may be associated with the promotion of sperm motility.
Male
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Humans
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Autoantibodies
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Sperm Motility
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Semen
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Retrospective Studies
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Receptor, Angiotensin, Type 1/immunology*
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Animals
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Rats
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Angiotensin II
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Adult
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Sperm Count
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Semen Analysis
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Receptor, Angiotensin, Type 2/immunology*
6.Management of home enteral tube feeding based on mobile health:a scoping review
Ming SHI ; Mengjie LI ; Manyi FU ; Yuhui FANG ; Hangjia TU ; Shuyi ZHANG ; Guijuan HE
Chinese Journal of Nursing 2024;59(15):1884-1890
Objective To conduct a scoping review of research on the application of mobile health(mHealth)in the management of home enteral tube feeding,so as to provide references for future research and clinical practice.Methods A literature search was performed in the PubMed,Cochrane Library,Embase,Web of Science,CINAHL,CNKI,Wanfang,and CMB databases to identify relevant studies.The search period spanned from the establishment of databases until February 18,2024.According to the scoping review framework,2 researchers independently screened the studies,extracted the data of the included studies,and collaborated on the final analysis.Results A total of 24 studies were included.9 studies were conducted with interventions based on nursing models such as discharge planning model,"Hospital to Home"nutrition management model,guided care nursing model.The management forms included application,network communication software,and website.The content elements included education,assessment,consultation,referral,self-management,electronic health archive,appointment service,peer support.The outcome indicators included patients'physical and mental health,self-management ability,caregiver competence,family burden and user assessment.Conclusion The mHealth has played a positive role in the management of home enteral tube feeding.In the future,it is recommended to establish a multidisciplinary team to conduct high-quality research and continuously improve the form and content of mHealth management.
7.Construction,identification and efficiency detection of CX3CR1GFP reporter gene mice
Xin-Xin ZHAO ; Rong HUANG ; Lu-Yun CHEN ; Chun-Mei HUANG ; Jia-Jie TU ; Xin-Ming WANG
Chinese Pharmacological Bulletin 2024;40(12):2392-2398
Aim To construct CX3CR1GFP transgenic mice based on the Cre/Loxp system,and to analyze the expression efficiency of CX3CR1GFP.Methods Targeted vectors were designed using restriction enzyme-based cloning technology to create a linearized targeted vector for transfecting embryonic stem cells(ES).The ES cells with a deletion of the neomycin resistance gene(neo)were then cloned into blastocysts to generate chimeric CX3CR1+/GFPmice.These mice were subsequently bred with wild-type mice(WT),and repeated backcrossing was performed to obtain CX3CR1GFP/GFP mice.DNA and mRNA from WT and CX3CR1GFP mice were extracted and genotyped using agarose gel electrophoresis.The expression level of CX3CR1 in various tis-sues of the mice was detected by RT-qPCR.Western blot analy-sis was used to analyze the expression of GFP protein in periph-eral blood mononuclear cells(PBMC)and various tissues.The labeling efficiency of immune cells in bone marrow was detected by flow cytometry.The expression of GFP in different mouse tis-sues was observed by immunofluorescence.Results The results of agarose gel electrophoresis showed that the transgenic mouse genotype was CX3CR1GFP/GFP homozygote.RT-qPCR and West-ern blot showed that EGFP were targeted to replace CX3CR1 gene,so CX3CR1 expression was very low in CX3CR1GFP mice,while GFP expression was significantly upregulated.Flow cytom-etry and immunofluorescence showed that GFP effectively marked CX3CR1GFP mice,expressed in various tissues and cells with different expression levels.Conclusion This study con-structs and identifies the CX3CR1GFP genetic reporter mice,and GFP is stably expressed in mice,which provides a foundation for further research into the potential mechanisms of CX3CR1 in im-mune regulation.
8.Expression and clinical significance of N6-methyladenosine modification-related genes in peripheral blood mononuclear cells from patients with gouty arthritis
Yanhui LI ; Tianyi LEI ; Yang WANG ; Xin TU ; Mei WANG ; Xiu LI ; Bin MING ; Zeng ZHANG ; Quanbo ZHANG ; Yufeng QING
Chinese Journal of Rheumatology 2024;28(9):640-647
Objective:To investigate the expression of N6-methyladenosine(m6A) modification-related genes and their possible roles in peripheral blood mononuclear cells (PBMCs) of patients with primary gouty arthritis (GA).Methods:Forty-five patients each with acute gout (AG), intermittent gout (IG), and age-and gender-matched healthy controls (HC) were collected from the outpatient clinic of the Department of Rheumatology and Immunology of the Affiliated Hospital of Chuanbei Medical College between October and December of 2023. The expression levels of m6A modification-related genes (METTL3、METTL14、WTAP、FTO、ALKBH5、IGF2BP2、IGF2BP3、YTHDF1、YTHDC2) in PBMCs among the 3 groups were detected by RT-qPCR and correlation analysis with clinical indicators was performed. Measurements conforming to normal distribution were analyzed using ANOVA or t-tests, and data were analyzed using the Kruskal-Wallis H-test and Mann-Whitney U-test for data that is not-normaly distributed. The value of m6A modification-related genes for the diagnosis of GA was evaluated using subject characterization curve ROC. Results:①There were statistically significant differences in the expression of IGF2BP2 ( Z=-3.59, P<0.001)、WTAP ( Z=-5.25, P<0.001)、METTL14 ( Z=-3.62, P<0.001)、YTHDF1 ( Z=-2.12, P=0.034)and YTHDC2 ( Z=-2.00, P=0.045) in the disease group and the normal control group. Among them, the expression of IGF2BP2 in the GA group [28.08 (17.99, 47.06)×10 -4] was significantly higher than that in the HC group [19.23 (12.90, 25.78)×10 -4], and the expressions of WTAP、METTL14、YTHDF1 and YTHDC2 in the GA group [298.61 (213.61, 377.80)×10 -4, 9.94 (6.43, 13.46)×10 -4, 52.63 (28.22, 72.77)×10 -4, 40.24 (20.74, 73.32)×10 -4] were significantly lower than those in the HC group [398.45(339.88, 454.89)×10 -4, 13.27(11.07, 15.85)×10 -4, 64.43(43.61, 87.10)×10 -4, 53.11(36.37, 79.28)×10 -4]. Further subgroup analysis revealed statistically significant differences in the expression of IGF2BP2、WTAP、METTL14、YTHDF1 and YTHDC2 among the 3 groups ( H=19.62、31.73、13.14、16.64、28.90, all P≤0.001). The expressions of WTAP and METTL14 in the AG group [311.13(234.96, 426.67)×10 -4, Z=-3.27, P=0.001; 9.64 (5.21, 15.21)×10 -4, Z=-2.71, P=0.008] and IG group [272.27 (203.29, 347.95)×10 -4, Z=-5.78, P<0.001; 10.40(6.88, 12.88)×10 -4, Z=-3.54, P=0.003] were lower than those in the HC group [398.45 (339.88, 454.89)×10 -4, 13.27(11.07, 15.85)×10 -4]. However, there was no significant difference between AG and IG group ( P>0.05). Both YTHDF1 and YTHDC2 were significantly lower in the AG group [38.10(16.19, 56.78)×10 -4, 24.31 (14.35, 42.77)×10 -4] than those in the IG group [64.13 (48.28, 74.40)×10 -4(Z=-3.54, P<0.001, 65.49 (39.89, 91.23)×10 -4(Z=-4.96, P<0.001)] and HC group [64.43 (43.61, 86.92)×10 -4(Z=-3.51, P<0.001), 53.11 (36.37, 79.28)×10 -4(Z=-4.25, P<0.001)]. But there was no statistically significant difference between IG and HC groups ( P>0.05); IGF2BP2 was significantly lower in the AG group [25.32(16.40, 40.43)×10 -4, Z=-2.46, P=0.014] and HC group [19.23 (12.90, 25.78)×10 -4, Z=-4.54, P<0.001] than in the IG group [31.10(22.60, 49.58)×10 -4], but the comparison between AG and HC showed no statistically significant difference( P>0.05). ②Spearman correlation analysis showed that in GA patients, the expression of IGF2BP2、METTL14 and YTHDF1 was positively correlated with plasma glucose、blood uric acid(sUA) and total cholesterol level respectively ( r=0.22, P=0.037; r=0.38, P=0.003; r=0.23, P=0.034), and WTAP was negatively correlated with GLU ( r=-0.25, P=0.020). ③The ROC curve for the joint prediction of the five differential genes showed that the 95% CI for area under the curve in GA was 0.90 (0.84, 0.95). Conclusion:The m6A modification-related genes are abnormally expressed in GA and are correlated with clinical indicators such as GLU and UA, which are hypothesized to be involved in the pathogenesis of GA and have a certain reference value for the evaluation of metabolism in GA patients.
9.The Quantitative Evaluation of Automatic Segmentation in Lumbar Magnetic Resonance Images
Yao-Wen LIANG ; Yu-Ting FANG ; Ting-Chun LIN ; Cheng-Ru YANG ; Chih-Chang CHANG ; Hsuan-Kan CHANG ; Chin-Chu KO ; Tsung-Hsi TU ; Li-Yu FAY ; Jau-Ching WU ; Wen-Cheng HUANG ; Hsiang-Wei HU ; You-Yin CHEN ; Chao-Hung KUO
Neurospine 2024;21(2):665-675
Objective:
This study aims to overcome challenges in lumbar spine imaging, particularly lumbar spinal stenosis, by developing an automated segmentation model using advanced techniques. Traditional manual measurement and lesion detection methods are limited by subjectivity and inefficiency. The objective is to create an accurate and automated segmentation model that identifies anatomical structures in lumbar spine magnetic resonance imaging scans.
Methods:
Leveraging a dataset of 539 lumbar spinal stenosis patients, the study utilizes the residual U-Net for semantic segmentation in sagittal and axial lumbar spine magnetic resonance images. The model, trained to recognize specific tissue categories, employs a geometry algorithm for anatomical structure quantification. Validation metrics, like Intersection over Union (IOU) and Dice coefficients, validate the residual U-Net’s segmentation accuracy. A novel rotation matrix approach is introduced for detecting bulging discs, assessing dural sac compression, and measuring yellow ligament thickness.
Results:
The residual U-Net achieves high precision in segmenting lumbar spine structures, with mean IOU values ranging from 0.82 to 0.93 across various tissue categories and views. The automated quantification system provides measurements for intervertebral disc dimensions, dural sac diameter, yellow ligament thickness, and disc hydration. Consistency between training and testing datasets assures the robustness of automated measurements.
Conclusion
Automated lumbar spine segmentation with residual U-Net and deep learning exhibits high precision in identifying anatomical structures, facilitating efficient quantification in lumbar spinal stenosis cases. The introduction of a rotation matrix enhances lesion detection, promising improved diagnostic accuracy, and supporting treatment decisions for lumbar spinal stenosis patients.
10.The Quantitative Evaluation of Automatic Segmentation in Lumbar Magnetic Resonance Images
Yao-Wen LIANG ; Yu-Ting FANG ; Ting-Chun LIN ; Cheng-Ru YANG ; Chih-Chang CHANG ; Hsuan-Kan CHANG ; Chin-Chu KO ; Tsung-Hsi TU ; Li-Yu FAY ; Jau-Ching WU ; Wen-Cheng HUANG ; Hsiang-Wei HU ; You-Yin CHEN ; Chao-Hung KUO
Neurospine 2024;21(2):665-675
Objective:
This study aims to overcome challenges in lumbar spine imaging, particularly lumbar spinal stenosis, by developing an automated segmentation model using advanced techniques. Traditional manual measurement and lesion detection methods are limited by subjectivity and inefficiency. The objective is to create an accurate and automated segmentation model that identifies anatomical structures in lumbar spine magnetic resonance imaging scans.
Methods:
Leveraging a dataset of 539 lumbar spinal stenosis patients, the study utilizes the residual U-Net for semantic segmentation in sagittal and axial lumbar spine magnetic resonance images. The model, trained to recognize specific tissue categories, employs a geometry algorithm for anatomical structure quantification. Validation metrics, like Intersection over Union (IOU) and Dice coefficients, validate the residual U-Net’s segmentation accuracy. A novel rotation matrix approach is introduced for detecting bulging discs, assessing dural sac compression, and measuring yellow ligament thickness.
Results:
The residual U-Net achieves high precision in segmenting lumbar spine structures, with mean IOU values ranging from 0.82 to 0.93 across various tissue categories and views. The automated quantification system provides measurements for intervertebral disc dimensions, dural sac diameter, yellow ligament thickness, and disc hydration. Consistency between training and testing datasets assures the robustness of automated measurements.
Conclusion
Automated lumbar spine segmentation with residual U-Net and deep learning exhibits high precision in identifying anatomical structures, facilitating efficient quantification in lumbar spinal stenosis cases. The introduction of a rotation matrix enhances lesion detection, promising improved diagnostic accuracy, and supporting treatment decisions for lumbar spinal stenosis patients.

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