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| 1 | Effects of the Molecular Weight of PLGA on Degradation and Drug Release In vitro from an mPEG-PLGA Nanocarrier显示文摘 | LIU Rui WANG Yan MA Yudan WU Yi GUO Yi XU Li | 2016 | Chemical Research in Chinese Universities2016，32，5： | 2 |
| 2 | Effect of cationic monomer structure on the aggregation behavior of amphoteric acrylic polymer around isoelectric point显示文摘Amphoteric polymer can be used as retanning agent in leather manufacture. It is particularly useful in chrome-free tanning systems since it can regulate the charge properties of chrome-free leather and enhance the fixation of anionic post-tanning chemicals in leather. However, the aggregation and precipitation of amphoteric polymer retanning agents around the isoelectric point (pI) hinder their wide application. Herein, we synthesized five amphoteric acrylic polymers (AAPs) by free radical copolymerization with acrylic acid and five different cationic acrylic monomers. The effect of cationic monomer structure on the aggregation behavior of AAPs was investigated. The aggregation of AAPs in aqueous solution showed pH and concentration dependence. Light scattering analysis showed that Poly (AA-co-MAPTAC) and Poly (AA-co-DMAPMA) were in the shape of coiled linear flexible chains with small particle size (Rg 7.6 nm and 14.8 nm, respectively) near the pI. However, Poly (AA-co-DAC), Poly (AA-co-DMC) and Poly (AA-co- DMAEMA) were in the shape of hollow spheres and exhibited serious aggregation. Quantum chemical calculations suggested that the amide groups in the cationic monomers MAPTAC and DMAPMA enhanced the nucleophilicity of AAPs. Thus the corresponding AAPs could carry a large number of cationic charges to slow their aggregation when the pH just climbed over the pI. The results are expected to provide theoretical reference for the synthesis and widespread application of AAPs. | Qijun Li Yudan Yi Ya-nan Wang Jing Li Bi Shi | 2022 | Journal of Leather Science and Engineering2022，4，1： | 0 |
| 3 | Novel Chemical Strategy for the Synthesis of RGDCySS Tetrapeptide显示文摘 | XU Baofeng YANG Sen ZHU Jinming MA Yudan ZHAO Gang GUO Yi XU Li | 2014 | Chemical Research in Chinese Universities2014，30，1： | 0 |
| 4 | Chronic spinal cord injury repair by NT3-chitosan only occurs after clearance of the lesion scar显示文摘Spinal cord injury(SCI)is a severe damage usually leading to limb dysesthesia,motor dysfunction,and other physiological disability.We have previously shown that NT3-chitosan could trigger an acute SCI repairment in rats and non-human primates.Due to the negative effect of inhibitory molecules in glial scar on axonal regeneration,however,the role of NT3-chitosan in the treatment of chronic SCI remains unclear.Compared with the fresh wound of acute SCI,how to handle the lesion core and glial scars is a major issue related to chronic-SCI repair.Here we report,in a chronic complete SCI rat model,establishment of magnetic resonancediffusion tensor imaging(MR-DTI)methods to monitor spatial and temporal changes of the lesion area,which matched well with anatomical analyses.Clearance of the lesion core via suction of cystic tissues and trimming of solid scar tissues before introducing NT3-chitosan using either a rigid tubular scaffold or a soft gel form led to robust neural regeneration,which interconnected the severed ascending and descending axons and accompanied with electrophysiological and motor functional recovery.In contrast,cystic tissue extraction without scar trimming followed by NT3-chitosan injection,resulted in little,if any regeneration.Taken together,after lesion core clearance,NT3-chitosan can be used to enable chronic-SCI repair and MR-DTI-based mapping of lesion area and monitoring of ongoing regeneration can potentially be implemented in clinical studies for subacute/chronic-SCI repair. | Can Zhao Jia-Sheng Rao Hongmei Duan Peng Hao Junkui Shang Yubo Fan Wen Zhao Yudan Gao Zhaoyang Yang Yi Eve Sun Xiaoguang Li | 2022 | Signal Transduction and Targeted Therapy2022，7，7： | 0 |
| 5 | The Systemic Immune Inflammatory Index Predicts No-Reflow Phenomenon after Primary Percutaneous Coronary Intervention in Older Patients with STEMI显示文摘Purpose:Coronary no-reflow phenomenon(NRP),a common adverse complication in patients with ST-segment eleva-tion myocardial infarction(STEMI)treated by percutaneous coronary intervention(PCI),is associated with poor patient prognosis.In this study,the correlation between the systemic immune-inflammation index(SII)and NRP in older patients with STEMI was studied,to provide a basis for early identification of high-risk patients and improve their prognosis.Materials and methods:Between January 2017 and June 2020,578 older patients with acute STEMI admitted to the Department of Cardiology of Hebei General Hospital for direct PCI treatment were selected for this retrospective study.Patients were divided into an NRP group and normal-flow group according to whether NRP occurred during the operation.Clinical data and the examination indexes of the two groups were collected.Logistic regression was used to analyze the independent predictors of NRP,and the receiver operating characteristic curve was used to further analyze the ability of SII to predict NRP in older patients with STEMI.Results:Multivariate logistic analysis indicated that hypertension(OR=2.048,95%CI:1.252–3.352,P=0.004),lymphocyte count(OR=0.571,95%CI:0.368–0.885,P=0.012),platelet count(OR=1.009,95%CI:1.005–1.013,P<0.001),hemoglobin(OR=1.015,95%CI:1.003–1.028,P=0.018),multivessel disease(OR=2.237,95%CI:1.407–3.558,P=0.001),and SII≥1814(OR=3.799,95%CI:2.190–6.593,P<0.001)were independent predictors of NRP after primary PCI in older patients with STEMI.Receiver operating characteristic curve analysis demonstrated that SII had a high predictive value for NRP(AUC=0.738;95%CI:0.686–0.790),with the best cut-off value of 1814,a sensitivity of 52.85%and a specificity of 85.71%.Conclusion:For older patients with STEMI undergoing primary PCI,SII is a valid predictor of NRP. | Jiaqi Wang Feifei Zhang Man Gao Yudan Wang Xuelian Song Yingxiao Li Yi Dang Xiaoyong Qi | 2023 | Cardiovascular Innovations and Applications2023，7，1： | 0 |
| 6 | Roles and Molecular Mechanisms of Biomarkers in Hepatocellular Carcinoma with Microvascular Invasion: A Review显示文摘Hepatocellular carcinoma(HCC)being a leading cause of cancer-related death,has high associated mortality and recurrence rates.It has been of great necessity and urgency to find effective HCC diagnosis and treatment measures.Studies have shown that microvascular invasion(MVI)is an independent risk factor for poor prognosis after hepatectomy.The abnormal expression of biomacromolecules such as circ-RNAs,lncRNAs,STIP1,and PD-L1 in HCC patients is strongly correlated with MVI.Deregulation of several markers mentioned in this review affects the proliferation,invasion,metastasis,EMT,and anti-apoptotic processes of HCC cells through multiple complex mechanisms.Therefore,these biomarkers may have an important clinical role and serve as promising interventional targets for HCC.In this review,we provide a comprehensive overview on the functions and regulatory mechanisms of MVI-related biomarkers in HCC. | Xudong Zhao Yudan Wang Haoming Xia Shuqiang Liu Ziyue Huang Risheng He Liang Yu Nanfeng Meng Hang Wang Junqi You Jinglin Li Judy Wai Ping Yam Yi Xu Yunfu Cui | 2023 | Journal of Clinical and Translational Hepatology2023，11，5： | 0 |
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