1.A 3D-ultrasound imaging system based on back-end scanning mode.
Jian QI ; Yimin CHEN ; Mingyue DING ; Chiming WEI
Chinese Journal of Medical Instrumentation 2012;36(4):235-238
A new scanning mode is proposed that the front-end of the probe is fixed, while the back-end makes fan-shaped, scanning movement. The new scanning mode avoided ribs drawbacks successfully. Based on the new scanning mode a 3D-Ultrasound Images System is accomplished to acquire 2D data of fetusfetus fetusfetus phantom and livers and kidneys, to demonstrates the effectiveness of the new scanning mode.
Fetus
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Humans
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Imaging, Three-Dimensional
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Kidney
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Liver
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Phantoms, Imaging
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Ultrasonics
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instrumentation
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methods
2.Exploration of the Mechanism of Icariin on Prostate Cancer Based on Network Pharmacology and Animal Experiments
Wenli LIN ; Yanran ZHAN ; Yanfen CHEN ; Jiahui HE ; Yuanjun WEI ; Taofen CHEN ; Xiangtao WENG ; Chiming GU
Herald of Medicine 2024;43(12):1874-1880
Objective To investigate the intervention effects and mechanism of icariin on prostate cancer based on network pharmacology and animal experiments.Methods The targets of icariin were predicted using the SwissTargetPrediction database.Protein-protein interaction networks were constructed with the String database,and core targets were screened using Cytoscape 3.9.1.GO and KEGG enrichment analysis on core targets were conducted with the Metascape database to predict the mechanism of action.A PC-3 tumor-bearing mouse model of prostate cancer was established to observe the inhibitory effects of icariin alone and in combination with paclitaxel on tumor growth.Results Network pharmacology predictions suggested that icariin has potential therapeutic effects on prostate cancer,with core targets potentially including serine/threonine kinase 1(AKT1),B-cell lymphoma-2(BCL2),epidermal growth factor receptor(EGFR),heat shock protein 90 alpha family class A member 1(HSP90AA1),heat shock protein 90 alpha family class B member 1(HSP90AB1),nuclear factor kappa B subunit 1(NF-κB1),tumor protein p53,etc.Animal experiments found that compared with the model control group,the tumor volume growth in the icariin group and the paclitaxel group was significantly inhibited,and the serum tumor necrosis factor content was significantly reduced,while testosterone levels did not change significantly.Both groups significantly downregulated the mRNA expression of Notch1,Jagged1 and Hes1(P<0.05),with the combined treatment group showing a more significant inhibitory effect.Conclusions Both network pharmacology and animal experimental results confirmed that icariin has a significant inhibitory effect on prostate cancer.One of the mechanisms of its anti-tumor effects may be the significant inhibition of the activated Notch signaling pathway in tumors.