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高硅MCM-22分子筛的合成与催化性能 被引量:2
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作者 童伟益 刘闯 +1 位作者 张俊玲 侯敏 《石油学报(石油加工)》 EI CAS CSCD 北大核心 2024年第1期65-74,共10页
以六亚甲基亚胺(HMI)和N,N,N-三甲基-1-金刚烷基氢氧化铵(TMAdaOH)为复合有机结构导向剂合成高硅MCM-22分子筛,并负载钼制备不同SiO_(2)/Al_(2)O_(3)摩尔比的MCM-22催化剂,采用XRD、FT-IR、UV-Raman、SEM、NH3-TPD等手段对分子筛产品进... 以六亚甲基亚胺(HMI)和N,N,N-三甲基-1-金刚烷基氢氧化铵(TMAdaOH)为复合有机结构导向剂合成高硅MCM-22分子筛,并负载钼制备不同SiO_(2)/Al_(2)O_(3)摩尔比的MCM-22催化剂,采用XRD、FT-IR、UV-Raman、SEM、NH3-TPD等手段对分子筛产品进行表征,并对负载型MCM-22催化剂进行重芳烃轻质化反应性能评价。结果表明:HMI和TMAdaOH复合协同作用能有效促进硅原子进入MCM-22分子筛骨架,抑制麦羟硅钠石的出现,提升分子筛的骨架结晶性和结构稳定性,其中SiO_(2)/Al_(2)O_(3)摩尔比80合成的MCM-22分子筛(S80)具有最高的微孔结晶度和丰富的中强酸分布;在反应温度为360℃、H_(2)/重芳烃原料摩尔比为3.0、反应压力为3.0 MPa、MHSV为3.0 h^(-1)的条件下,Mo/H-S80催化剂作用下碳九芳烃和碳十芳烃转化率分别为64.9%和62.7%,产物苯、甲苯和二甲苯的总选择性达到87.6%;对反应后Mo/H-S80催化剂的积炭分析结果表明,高硅MCM-22分子筛S80更易于扩散并转化重组分、控制副反应的发生,是高效轻质化的理想催化材料。 展开更多
关键词 SiO_(2)/Al_(2)O_(3)摩尔比 mcm-22分子筛 有机结构导向剂 重芳烃 轻质化反应 积炭
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MCM-41/NH_(2)-MIL-101(Fe)复合材料的制备及其光催化还原CO_(2)性能
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作者 江雨婷 徐红 +2 位作者 钟毅 毛志平 张琳萍 《现代化工》 CAS CSCD 北大核心 2024年第S02期155-160,共6页
采用水热法将分子筛MCM-41与光催化剂NH_(2)-MIL-101(Fe)复合制备了MCM-41/NH_(2)-MIL-101(Fe)复合光催化剂(NMM),用于光催化还原CO_(2)。借助XRD、BET、SEM-EDS、UV-Vis DRS、PL、XPS等分析手段对催化剂的微观结构进行详细的分析和表征... 采用水热法将分子筛MCM-41与光催化剂NH_(2)-MIL-101(Fe)复合制备了MCM-41/NH_(2)-MIL-101(Fe)复合光催化剂(NMM),用于光催化还原CO_(2)。借助XRD、BET、SEM-EDS、UV-Vis DRS、PL、XPS等分析手段对催化剂的微观结构进行详细的分析和表征,解析了催化剂理化性质对催化活性的影响,明确了在NH_(2)-MIL-101(Fe)催化剂中掺杂MCM-41对CO_(2)还原为甲酸产量提升有积极作用。实验结果表明,在光照5 h后,在水溶液中未添加牺牲剂的条件下,10%MCM-41添加量的10%NMM将CO_(2)还原为甲酸的产量为109.11μmol/g,是纯NH_(2)-MIL-101(Fe)的5倍(21.78μmol/g);添加牺牲剂TEOA后10%NMM的甲酸产量为132.78μmol/g,是纯NH_(2)-MIL-101(Fe)的4倍(33.67μmol/g)。催化剂在2种溶液体系中重复使用3次后,仍保持很高的催化活性。 展开更多
关键词 mcm-41/NH_(2)-MIL-101(Fe) 光催化还原 CO_(2) 甲酸
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Low-density lipoprotein receptor-related protein 2(LRP2)is required for lipid export in the midgut of the migratory locust,Locusta migratoria
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作者 Yiyan Zhao Weimin Liu +6 位作者 Xiaoming Zhao Zhitao Yu Hongfang Guo Yang Yang Hans Merzendorfer Kun Yan Zhu Jianzhen Zhang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第5期1618-1633,共16页
Low-density lipoprotein receptor-related protein 2(LRP2)is a multifunctional endocytic receptor expressed in epithelial cells.In mammals,it acts as an endocytic receptor that mediates the cellular uptake of cholestero... Low-density lipoprotein receptor-related protein 2(LRP2)is a multifunctional endocytic receptor expressed in epithelial cells.In mammals,it acts as an endocytic receptor that mediates the cellular uptake of cholesterol-containing apolipoproteins to maintain lipid homeostasis.However,little is known about the role of LRP2 in lipid homeostasis in insects.In the present study,we investigated the function of LRP2 in the migratory locust Locusta migratoria(LmLRP2).The mRNA of LmLRP2 is widely distributed in various tissues,including integument,wing pads,foregut,midgut,hindgut,Malpighian tubules and fat body,and the amounts of LmLRP2 transcripts decreased gradually in the early stages and then increased in the late stages before ecdysis during the nymphal developmental stage.Fluorescence immunohistochemistry revealed that the LmLRP2 protein is mainly located in cellular membranes of the midgut and hindgut.Using RNAi to silence LmLRP2 caused molting defects in nymphs(more than 60%),and the neutral lipid was found to accumulate in the midgut and surface of the integument,but not in the fat body,of dsLmLRP2-treated nymphs.The results of a lipidomics analysis showed that the main components of lipids(diglyceride and triglyceride)were significantly increased in the midgut,but decreased in the fat body and hemolymph.Furthermore,the content of total triglyceride was significantly increased in the midgut,but markedly decreased in the fat body and hemolymph in dsLmLRP2-injected nymphs.Our results indicate that LmLRP2 is located in the cellular membranes of midgut cells,and is required for lipid export from the midgut to the hemolymphand fat body in locusts. 展开更多
关键词 Locusta migratoria low-density lipoprotein receptor-related protein 2 MIDGUT lipids transport RNAi
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Exploration of cyclooxygenase-2 inhibitory peptides from walnut dreg proteins based on in silico and in vitro analysis
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作者 Zishan Hong Jing Xie +8 位作者 Liang Tao Jing-Jing Dai Tingting Li Li Zhang Yuying Bai Xia Hu Jinlian Chen Jun Sheng Yang Tian 《Food Science and Human Wellness》 SCIE CSCD 2024年第3期1636-1644,共9页
Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain unclear.The aim of this study was to rapidly screen for such pept... Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain unclear.The aim of this study was to rapidly screen for such peptides in WDPHs through a combination of in silico and in vitro analysis.In total,1262 peptide sequences were observed by nano liquid chromatography/tandem mass spectrometry(nano LC-MS/MS)and 4 novel COX-2 inhibitory peptides(AGFP,FPGA,LFPD,and VGFP)were identified.Enzyme kinetic data indicated that AGFP,FPGA,and LFPD displayed mixed-type COX-2 inhibition,whereas VGFP was a non-competitive inhibitor.This is mainly because the peptides form hydrogen bonds and hydrophobic interactions with residues in the COX-2 active site.These results demonstrate that computer analysis combined with in vitro evaluation allows for rapid screening of COX-2 inhibitory peptides in walnut protein dregs. 展开更多
关键词 Walnut dreg proteins Cyclooxygenase-2 inhibitory peptide IDENTIFICATION Virtual screening Molecular docking
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GATA binding protein 2 mediated ankyrin repeat domain containing 26 high expression in myeloid-derived cell lines
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作者 Yang-Zhou Jiang Lan-Yue Hu +11 位作者 Mao-Shan Chen Xiao-Jie Wang Cheng-Ning Tan Pei-Pei Xue Teng Yu Xiao-Yan He Li-Xin Xiang Yan-Ni Xiao Xiao-Liang Li Qian Ran Zhong-Jun Li Li Chen 《World Journal of Stem Cells》 SCIE 2024年第5期538-550,共13页
BACKGROUND Thrombocytopenia 2,an autosomal dominant inherited disease characterized by moderate thrombocytopenia,predisposition to myeloid malignancies and normal platelet size and function,can be caused by 5’-untran... BACKGROUND Thrombocytopenia 2,an autosomal dominant inherited disease characterized by moderate thrombocytopenia,predisposition to myeloid malignancies and normal platelet size and function,can be caused by 5’-untranslated region(UTR)point mutations in ankyrin repeat domain containing 26(ANKRD26).Runt related transcription factor 1(RUNX1)and friend leukemia integration 1(FLI1)have been identified as negative regulators of ANKRD26.However,the positive regulators of ANKRD26 are still unknown.AIM To prove the positive regulatory effect of GATA binding protein 2(GATA2)on ANKRD26 transcription.METHODS Human induced pluripotent stem cells derived from bone marrow(hiPSC-BM)INTRODUCTION Ankyrin repeat domain containing protein 26(ANKRD26)acts as a regulator of adipogenesis and is involved in the regulation of feeding behavior[1-3].The ANKRD26 gene is located on chromosome 10 and shares regions of homology with the primate-specific gene family POTE.According to the Human Protein Atlas database,the ANKRD26 protein is localized to the Golgi apparatus and vesicles,and its expression can be detected in nearly all human tissues[4].Moreover,UniProt annotation revealed that ANKRD26 is localized in the centrosome and contains coiled-coil domains formed by spectrin helices and ankyrin repeats[5,6].The most common disease related to ANKRD26 is thrombocytopenia 2(THC2),which is a rare autosomal dominant inherited disease characterized by lifelong mild-to-moderate thrombocytopenia and mild bleeding[7-9].Caused by the variants in the 5’-untranslated region(UTR)of ANKRD26,THC2 is defined by a decrease in the number of platelets in circulating blood and results in increased bleeding and decreased clotting ability[8,10].Due to the point mutations that occur in the 5’-UTR of ANKRD26,its negative transcription factors(TFs),Runt related transcription factor 1(RUNX1)and friend leukemia integration 1(FLI1),lose their repression effect[11].The persistent expression of ANKRD26 increases the activity of the mitogen activated protein kinase and extracellular signal regulated kinase 1/2 signaling pathways,which are potentially involved in the regulation of thrombopoietin-dependent signaling and further impair proplatelet formation by megakaryocytes(MKs)[11].However,the positive regulators of ANKRD26,which might be associated with THC2 pathology,are still unknown. 展开更多
关键词 Ankyrin repeat domain containing 26 GATA binding protein 2 Thrombocytopenia 2 Transcriptional regulation Myeloid-derived cell lines
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Neural Wiskott-Aldrich syndrome protein(N-WASP)promotes distant metastasis in pancreatic ductal adenocarcinoma via activation of LOXL2
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作者 HYUNG SUN KIM YUN SUN LEE +5 位作者 SEUNG MYUNG DONG HYO JUNG KIM DA EUN LEE HYEON WOONG KANG MYEONG JIN KIM JOON SEONG PARK 《Oncology Research》 SCIE 2024年第4期615-624,共10页
Pancreatic ductal adenocarcinoma(PDAC)is one of the most aggressive solid malignancies.A specific mechanism of its metastasis has not been established.In this study,we investigated whether Neural Wiskott-Aldrich syndr... Pancreatic ductal adenocarcinoma(PDAC)is one of the most aggressive solid malignancies.A specific mechanism of its metastasis has not been established.In this study,we investigated whether Neural Wiskott-Aldrich syndrome protein(N-WASP)plays a role in distant metastasis of PDAC.We found that N-WASP is markedly expressed in clinical patients with PDAC.Clinical analysis showed a notably more distant metastatic pattern in the N-WASP-high group compared to the N-WASP-low group.N-WASP was noted to be a novel mediator of epithelialmesenchymal transition(EMT)via gene expression profile studies.Knockdown of N-WASP in pancreatic cancer cells significantly inhibited cell invasion,migration,and EMT.We also observed positive association of lysyl oxidase-like 2(LOXL2)and focal adhesion kinase(FAK)with the N-WASP-mediated response,wherein EMT and invadopodia function were modulated.Both N-WASP and LOXL2 depletion significantly reduced the incidence of liver and lung metastatic lesions in orthotopic mouse models of pancreatic cancer.These results elucidate a novel role for N-WASP signaling associated with LOXL2 in EMT and invadopodia function,with respect to regulation of intercellular communication in tumor cells for promoting pancreatic cancer metastasis.These findings may aid in the development of therapeutic strategies against pancreatic cancer. 展开更多
关键词 Pancreatic cancer Neural Wiskott-Aldrich syndrome protein(N-WASP)signaling METASTASIS Epithelial-mesenchymal transition(EMT) Lysyl oxidase-like 2(LOXL2)
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Polycytosine RNA-binding protein 1 regulates osteoblast function via a ferroptosis pathway in type 2 diabetic osteoporosis
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作者 Hong-Dong Ma Lei Shi +2 位作者 Hai-Tian Li Xin-Dong Wang Mao-Wei Yang 《World Journal of Diabetes》 SCIE 2024年第5期977-987,共11页
BACKGROUND Recently,type 2 diabetic osteoporosis(T2DOP)has become a research hotspot for the complications of diabetes,but the specific mechanism of its occurrence and development remains unknown.Ferroptosis caused by... BACKGROUND Recently,type 2 diabetic osteoporosis(T2DOP)has become a research hotspot for the complications of diabetes,but the specific mechanism of its occurrence and development remains unknown.Ferroptosis caused by iron overload is con-sidered an important cause of T2DOP.Polycytosine RNA-binding protein 1(PCBP1),an iron ion chaperone,is considered a protector of ferroptosis.AIM To investigate the existence of ferroptosis and specific role of PCBP1 in the development of type 2 diabetes.METHODS A cell counting kit-8 assay was used to detect changes in osteoblast viability under high glucose(HG)and/or ferroptosis inhibitors at different concentrations and times.Transmission electron microscopy was used to examine the morpho-logical changes in the mitochondria of osteoblasts under HG,and western blotting was used to detect the expression levels of PCBP1,ferritin,and the ferroptosis-related protein glutathione peroxidase 4(GPX4).A lentivirus silenced and overex-pressed PCBP1.Western blotting was used to detect the expression levels of the osteoblast functional proteins osteoprotegerin(OPG)and osteocalcin(OCN),whereas flow cytometry was used to detect changes in reactive oxygen species(ROS)levels in each group.RESULTS Under HG,the viability of osteoblasts was considerably decreased,the number of mitochondria undergoing atrophy was considerably increased,PCBP1 and ferritin expression levels were increased,and GPX4 expression was decreased.Western blotting results demonstrated that infection with lentivirus overexpressing PCBP1,increased the expression levels of ferritin,GPX4,OPG,and OCN,compared with the HG group.Flow cytometry results showed a reduction in ROS,and an opposite result was obtained after silencing PCBP1.CONCLUSION PCBP1 may protect osteoblasts and reduce the harm caused by ferroptosis by promoting ferritin expression under a HG environment.Moreover,PCBP1 may be a potential therapeutic target for T2DOP. 展开更多
关键词 Polycytosine RNA-binding protein 1 Ferroptosis Reactive oxygen species FERRITIN OSTEOBLAST Type 2 diabetic osteoporosis
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Glucokinase regulatory protein rs780094 polymorphism is associated with type 2 diabetes mellitus, dyslipidemia, non-alcoholic fatty liver disease, and nephropathy
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作者 Ashraf Al Madhoun 《World Journal of Diabetes》 SCIE 2024年第5期814-817,共4页
In this editorial,we comment on the article by Liu et al published in the recent issue of the World Journal of Diabetes(Relationship between GCKR gene rs780094 polymorphism and type 2 diabetes with albuminuria).Type 2... In this editorial,we comment on the article by Liu et al published in the recent issue of the World Journal of Diabetes(Relationship between GCKR gene rs780094 polymorphism and type 2 diabetes with albuminuria).Type 2 diabetes mellitus(T2DM)is a chronic disorder characterized by dysregulated glucose homeostasis.The persistent elevated blood glucose level in T2DM significantly increases the risk of developing severe complications,including cardiovascular disease,re-tinopathy,neuropathy,and nephropathy.T2DM arises from a complex interplay between genetic,epigenetic,and environmental factors.Global genomic studies have identified numerous genetic variations associated with an increased risk of T2DM.Specifically,variations within the glucokinase regulatory protein(GCKR)gene have been linked to heightened susceptibility to T2DM and its associated complications.The clinical trial by Liu et al further elucidates the role of the GCKR rs780094 polymorphism in T2DM and nephropathy development.Their findings demonstrate that individuals carrying the CT or TT genotype at the GCKR rs780094 locus are at a higher risk of developing T2DM with albuminuria compared to those with the CC genotype.These findings highlight the importance of genetic testing and risk assessment in T2DM to develop effective preventive strategies and personalized treatment plans. 展开更多
关键词 Glucokinase regulatory protein rs780094 Type 2 diabetes mellitus DYSLIPIDEMIA Non-alcoholic fatty liver disease NEPHROPATHY
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Targeting neuronal PAS domain protein 2 and KN motif/ankyrin repeat domains 1:Advances in type 2 diabetes therapy
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作者 Chun-Han Cheng Wen-Rui Hao Tzu-Hurng Cheng 《World Journal of Diabetes》 SCIE 2024年第11期2173-2176,共4页
This editorial summarizes the latest literature on the roles of neuronal PAS domain protein 2 and KN motif/ankyrin repeat domain 1 in type 2 diabetes(T2D).We highlight their involvement inβ-cell dysfunction,explore t... This editorial summarizes the latest literature on the roles of neuronal PAS domain protein 2 and KN motif/ankyrin repeat domain 1 in type 2 diabetes(T2D).We highlight their involvement inβ-cell dysfunction,explore their potential as therapeutic targets,and discuss the implications for new treatment strategies.We offer valuable insights into relevant gene regulation and cellular mechanisms relevant for the targeted management of T2D. 展开更多
关键词 Type 2 diabetes Neuronal PAS domain protein 2 KN motif and ankyrin repeat domain 1 β-cell dysfunction Therapeutic target
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Molecular Docking Studies of Botanical Beverage Mix Berries (LIFEGREENTM) against Breast Cancer Cells from Targeted Protein 1QQG, 7B5Q & 7B5O & Uterine Fibroid from Targeted Protein 2AYR, 6T41 & 3GRF
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作者 Ummi Shahieda Lazaroo Bt Zurrein Shah Lazaroo Navanithan Sivanananthan Chua Kia How 《Computational Molecular Bioscience》 2024年第2期59-123,共65页
Fibroids, also called leiomyomas or myomas, are communal tumors of the muscle or uterine wall that affect about 20% of females who are of reproductive age. They can look as if singly or in clusters, and they often cea... Fibroids, also called leiomyomas or myomas, are communal tumors of the muscle or uterine wall that affect about 20% of females who are of reproductive age. They can look as if singly or in clusters, and they often cease to grow after menopause. Fibroids can be classified as intramural, sub serosal, pedunculated, or submucosal based on where they are positioned in the uterus. Although fibroids are benign, they can grow quickly and cause a range of symptoms, such as pelvic pressure, heavy menstrual flow, and infertility. As a result, fibroids are a main reason behind hysterectomy surgeries. The majority of cases of breast cancer are ductal and lobular cancers, making it the second utmost common cancer in women international. Gene mutations like those in BRCA1 or BRCA2 knowingly raise the risk of breast and other cancers, typically with an earlier cancer onset. Cancer risk is influenced by a complex interplay of genetic abnormalities, environmental factors, and lifestyle selections. Further research into these relations is domineering. Although they are common in uterine leiomyomas, especially multiple leiomyomas, MED12 mutations do not significantly correlate with tumor size. These mutations have also been noticed in smooth muscle tumors and leiomyosarcomas, two other types of uterine cancer. The identification of MED12 mutations as the sole genetic abnormality originates in leiomyomas raises the opportunity of a role in the genesis of cancer. 10% - 15% of women who are of reproductive age have endometriosis, which grants serious difficulties because of its chronic nature and range of clinical symptoms. Even after effective surgeries, issues reoccur often, adding to the enormous financial burden. The effects of MED12 mutations have been experiential in recent studies examining the molecular causes of endometriosis-associated infertility, which have shown anomalies in cellular connections and signaling cascades. Computational techniques were used in this study to investigate LifeGreenTM’s potential to prevent uterine fibroids and breast cancer. The efficacy of LifeGreenTM as a preventive measure or a treatment for common gynecological matters was examined and modeled. We investigated the mechanisms underlying LifeGreenTM’s benefits in the treatment of uterine fibroids and breast cancer using computational techniques. Our research contributes to our understanding of its potential therapeutic benefits for women’s health. 展开更多
关键词 Uterine Fibroid Breast Cancer Molecular Docking IRS protein BRCA1 BRCA2 MED12-a ENDOMETRIOSIS
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CoFe_(2)O_(4)/MCM-41催化剂的制备及其光催化降解亚甲基蓝性能 被引量:2
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作者 田志茗 常悦 《石油化工》 CAS CSCD 北大核心 2023年第2期154-160,共7页
采用水热法将纳米CoFe_(2)O_(4)与MCM-41介孔分子筛复合,制备了CoFe_(2)O_(4)/MCM-41光催化剂。通过TG-DTA,XRD,SEM,N2吸附-脱吸等方法对制备的催化剂进行表征,并以亚甲基蓝染料废水为研究对象,考察了催化剂光催化降解亚甲基蓝的性能。... 采用水热法将纳米CoFe_(2)O_(4)与MCM-41介孔分子筛复合,制备了CoFe_(2)O_(4)/MCM-41光催化剂。通过TG-DTA,XRD,SEM,N2吸附-脱吸等方法对制备的催化剂进行表征,并以亚甲基蓝染料废水为研究对象,考察了催化剂光催化降解亚甲基蓝的性能。实验结果表明,CoFe_(2)O_(4)/MCM-41催化剂仍具有介孔材料的孔道结构,CoFe_(2)O_(4)纳米粒子在分子筛孔道或表面均匀分散,呈现尖晶石结构,使CoFe_(2)O_(4)/MCM-41复合催化剂具有良好的催化活性。CoFe_(2)O_(4)/MCM-41复合催化剂(Co与Si摩尔比为1∶1)在初始染料质量浓度为10 mg/L、溶液pH=7、可见光照射的条件下,2 h内对亚甲基蓝降解率达到98.3%,降解速率符合一级反应动力学。CoFe_(2)O_(4)/MCM-41重复使用5次后,亚甲基蓝的降解率仍可达到86.6%。 展开更多
关键词 CoFe_(2)O_(4)/mcm-41 光催化 降解 亚甲基蓝
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下调HMGB2表达对肝癌LM3细胞上皮-间质转化的抑制作用及其AKT/mTOR信号通路机制 被引量:1
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作者 魏雁虹 杨晨雪 +4 位作者 杨广民 宋帅 李明 杨海娇 魏海峰 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2024年第1期143-149,共7页
目的:探讨下调肝癌细胞中高迁移率族框蛋白2 (HMGB2)表达对肝癌细胞生物学行为及上皮-间质转化(EMT)进程的影响,并阐明其作用机制。方法:对数生长期的人肝癌LM3细胞分为阴性对照组和HMGB2 RNA干扰组(HMGB2 siRNA组),分别以Lipofectamin ... 目的:探讨下调肝癌细胞中高迁移率族框蛋白2 (HMGB2)表达对肝癌细胞生物学行为及上皮-间质转化(EMT)进程的影响,并阐明其作用机制。方法:对数生长期的人肝癌LM3细胞分为阴性对照组和HMGB2 RNA干扰组(HMGB2 siRNA组),分别以Lipofectamin 2000为载体转染无关序列的RNA寡核苷酸(RNA oligo)和敲除HMGB2序列的RNA oligo。采用实时荧光定量PCR(RT-qPCR)法和Western blotting法检测2组细胞中HMGB2 mRNA和蛋白表达水平,分别采用细胞划痕实验和Transwell小室实验检测2组细胞的迁移和侵袭能力,采用Western blotting法检测2组细胞中E-钙黏蛋白(E-cadherin)、 N-钙黏蛋白(N-cadherin)、波形蛋白(Vimentin)和蛋白激酶B(AKT)/哺乳动物雷帕霉素靶蛋白(mTOR)通路相关蛋白表达水平。结果:与阴性对照组比较,HMGB2 siRNA组细胞中HMGB2 mRNA和蛋白表达水平均明显降低(P<0.05),HMGB2 siRNA组细胞划痕愈合率明显降低(P<0.01),侵袭细胞数明显减少(P<0.01),细胞中E-cadherin蛋白表达水平明显升高(P<0.01),N-cadherin、Vimentin、mTOR、AKT和磷酸化AKT (p-AKT)蛋白表达水平明显降低(P<0.05或P<0.01)。结论:下调HMGB2的表达可降低肝癌LM3细胞迁移和侵袭能力并抑制EMT,其作用机制可能与参与调节AKT/mTOR通路相关蛋白表达有关。 展开更多
关键词 肝肿瘤 高迁移率族框蛋白2 上皮-间质转化 细胞迁移 细胞侵袭 蛋白激酶B/哺乳动物雷帕霉素靶蛋白
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多发性子宫肌瘤患者血清ANGPTL2、VASH1的表达及临床意义 被引量:1
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作者 方芳 张茜 +2 位作者 陈培芳 李彩虹 段小云 《分子诊断与治疗杂志》 2024年第2期343-347,共5页
目的 分析血清中血管生成素样蛋白2(ANGPTL2)和血管生成抑制蛋白1(VASH1)的表达水平,探讨其在多发性子宫肌瘤中的临床意义。方法 选取2018年1月至2022年1月于东南大学医学院附属南京同仁医院就诊的312例多发性子宫肌瘤患者为研究对象(... 目的 分析血清中血管生成素样蛋白2(ANGPTL2)和血管生成抑制蛋白1(VASH1)的表达水平,探讨其在多发性子宫肌瘤中的临床意义。方法 选取2018年1月至2022年1月于东南大学医学院附属南京同仁医院就诊的312例多发性子宫肌瘤患者为研究对象(观察组),同时期来本院体检的312名健康女性作为对照(对照组);酶联免疫吸附试验(ELISA)检测血清中ANGPTL2和VASH1水平;Pearson相关分析血清中ANGPTL2和VASH1水平的相关性;受试者工作特征(ROC)曲线分析血清中ANGPTL2和VASH1水平对多发性子宫肌瘤的诊断价值;Logistic回归分析多发性子宫肌瘤发生的影响因素。结果 观察组血清中ANGPTL2和VASH1水平显著高于对照组,差异有统计学意义(t=12.870、9.935,P<0.05);血清中ANGPTL2和VASH1水平与阴道不规则出血、肌瘤数量、最大肌瘤直径以及平均肌瘤体积有关,差异有统计学意义(P<0.05),而与年龄、月经情况、绝经情况、妊娠史、流产史、ER、PR以及肿瘤部位无关,差异无统计学意义(P>0.05);Pearson相关分析结果显示,多发性子宫肌瘤患者血清中ANGPTL2和VASH1水平呈正相关(r=5.440,P<0.05);ROC曲线分析结果显示,血清中ANGPTL2和VASH1水平联合诊断多发性子宫肌瘤的曲线下面积(AUC),效果较ANGPTL2和VASH1单一指标更好(P<0.05);Logistic回归分析结果显示,ANGPTL2、VASH1是多发性子宫肌瘤发生的影响因素(P<0.05)。结论 多发性子宫肌瘤患者血清中ANGPTL2和VASH1水平显著升高,两者联合可辅助诊断多发性子宫肌瘤。 展开更多
关键词 多发性子宫肌瘤 血管生成素样蛋白2 血管生成抑制蛋白1
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脂肪间充质干细胞过表达骨形态发生蛋白2促进骨质疏松大鼠牙槽骨缺损修复 被引量:1
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作者 何莉君 漆小娟 《中国组织工程研究》 CAS 北大核心 2024年第1期32-37,共6页
背景:颌骨在骨质疏松症中最容易受累,脂肪间充质干细胞和骨形态发生蛋白2具有促进骨质疏松症骨再生的效果,然而骨形态发生蛋白2修饰的脂肪间充质干细胞对骨质疏松症牙槽骨缺损的修复作用鲜有报道。目的:探究过表达骨形态发生蛋白2的脂... 背景:颌骨在骨质疏松症中最容易受累,脂肪间充质干细胞和骨形态发生蛋白2具有促进骨质疏松症骨再生的效果,然而骨形态发生蛋白2修饰的脂肪间充质干细胞对骨质疏松症牙槽骨缺损的修复作用鲜有报道。目的:探究过表达骨形态发生蛋白2的脂肪间充质干细胞对骨质疏松大鼠牙槽骨缺损的修复作用。方法:①将过表达骨形态发生蛋白2基因的慢病毒感染大鼠脂肪间充质干细胞,通过检测绿色荧光蛋白和骨形态发生蛋白2表达进行鉴定;②切除卵巢建立骨质疏松大鼠模型,于上颌两侧第一磨牙位置制备3 mm×3 mm×3 mm的圆柱形缺损;③假手术组和骨质疏松组大鼠植入明胶海绵,脂肪间充质干细胞组植入空载体慢病毒感染的脂肪间充质干细胞与明胶海绵复合体,过表达骨形态发生蛋白2的脂肪间充质干细胞组植入过表达骨形态发生蛋白2的脂肪间充质干细胞与明胶海绵复合体,1个月后进行相关指标检测。结果与结论:①脂肪间充质干细胞组和过表达骨形态发生蛋白2的脂肪间充质干细胞组转染效率均达到70%以上;与脂肪间充质干细胞组相比,过表达骨形态发生蛋白2的脂肪间充质干细胞组骨形态发生蛋白2蛋白表达水平明显升高(P<0.05);②假手术组骨缺损区可见大量新骨生成;与假手术组相比,骨质疏松组有少量新骨生成,新骨面积明显减小,碱性磷酸酶、骨钙素及骨形态发生蛋白2 mRNA和蛋白水平明显降低;与骨质疏松组相比,脂肪间充质干细胞组和过表达骨形态发生蛋白2的脂肪间充质干细胞组有大量新骨生成,新骨面积明显增加,碱性磷酸酶、骨钙素及骨形态发生蛋白2 mRNA和蛋白水平明显升高,且过表达骨形态发生蛋白2的脂肪间充质干细胞组优于脂肪间充质干细胞组(均P<0.05);③结果表明,骨形态发生蛋白2在骨质疏松大鼠牙槽骨表达较少,过表达骨形态发生蛋白2的脂肪间充质干细胞能够促进骨质疏松大鼠牙槽骨缺损的成骨再生。 展开更多
关键词 骨形态发生蛋白2 脂肪间充质干细胞 骨质疏松 牙槽骨 修复
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BMAL1减轻H_(2)O_(2)诱导的心肌细胞损伤机制研究 被引量:2
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作者 易娜 肖雯 +1 位作者 田源 袁李礼 《天津医药》 CAS 2024年第2期119-123,共5页
目的探讨脑和肌肉组织芳香烃受体核转运蛋白的类似蛋白1(BMAL1)通过核因子E2相关因子2(NRF2)调节活性氧(ROS)/NOD样受体热蛋白结构域相关蛋白3(NLRP3)炎症小体通路对过氧化氢(H_(2)O_(2))诱导的心肌细胞损伤的影响。方法体外培养H9c2细... 目的探讨脑和肌肉组织芳香烃受体核转运蛋白的类似蛋白1(BMAL1)通过核因子E2相关因子2(NRF2)调节活性氧(ROS)/NOD样受体热蛋白结构域相关蛋白3(NLRP3)炎症小体通路对过氧化氢(H_(2)O_(2))诱导的心肌细胞损伤的影响。方法体外培养H9c2细胞和BMAL1稳定过表达的H9c2细胞,建立H_(2)O_(2)诱导的H9c2细胞损伤模型,并将细胞分为对照(Control)组、H_(2)O_(2)组、BMAL1过表达(BMAL1-OE)组、BMAL1过表达+H_(2)O_(2)(BMAL1-OE+H_(2)O_(2))组、BMAL1过表达+NRF2抑制剂(BMAL1-OE+ML385)组、BMAL1过表达+NRF2抑制剂+H_(2)O_(2)(BMAL1-OE+ML385+H_(2)O_(2))组。采用CCK-8法检测细胞活力,荧光探针2’,7’-二氯荧光素二乙酸酯检测ROS生成,Western blot检测BMAL1、NRF2和NLRP3蛋白表达,酶联免疫吸附试验法检测白细胞介素(IL)-1β释放。结果与Control组相比,H_(2)O_(2)组H9c2心肌细胞活力减弱,ROS生成增多,BMAL1和NRF2蛋白表达水平降低,NLRP3蛋白表达水平升高,IL-1β释放增多(P<0.05);与H_(2)O_(2)组相比,BMAL1-OE+H_(2)O_(2)组H9c2心肌细胞活力升高,ROS生成减少,BMAL1和NRF2蛋白表达水平升高,NLRP3蛋白表达水平降低,IL-1β释放减少(P<0.05)。与BMAL1-OE+H_(2)O_(2)组相比,BMAL1-OE+ML385+H_(2)O_(2)组H9c2心肌细胞活力减弱,ROS生成增多,NLRP3蛋白表达水平升高,IL-1β释放增多(P<0.05)。结论BMAL1可减轻H_(2)O_(2)诱导的H9c2心肌细胞损伤,其机制可能与NRF2调节ROS/NLRP3炎症小体通路有关。 展开更多
关键词 ARNTL转录因子类 NF-E2相关因子2 活性氧 NLR家族 热蛋白结构域包含蛋白3 脑和肌肉组织芳香烃受体核转运蛋白的类似蛋白1 炎症小体
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入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ水平与CHB肝纤维化严重程度的相关性及对疾病预后的预测价值 被引量:1
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作者 张艳敏 李登州 +1 位作者 陈秋芳 王海颖 《河南医学研究》 CAS 2024年第6期1002-1007,共6页
目的探讨入院时血清转化生长因子-β1(TGF-β1)、Smad同源蛋白2(Smad2)、Smad同源蛋白3(Smad3)及透明质酸(HA)、Ⅲ型前胶原(PCⅢ)、层黏连蛋白(LN)、Ⅳ型胶原(CⅣ)水平与慢性乙型肝炎(CHB)肝纤维化严重程度的相关性及联合检测对疾病预... 目的探讨入院时血清转化生长因子-β1(TGF-β1)、Smad同源蛋白2(Smad2)、Smad同源蛋白3(Smad3)及透明质酸(HA)、Ⅲ型前胶原(PCⅢ)、层黏连蛋白(LN)、Ⅳ型胶原(CⅣ)水平与慢性乙型肝炎(CHB)肝纤维化严重程度的相关性及联合检测对疾病预后的预测价值。方法选取河南省中医院2021年3月至2022年3月收治的78例CHB肝纤维化患者作为研究组,选择同期78名健康体检者作为对照组。比较研究组和对照组及不同肝纤维化分期、不同炎症活动分级CHB肝纤维化患者入院时血清TGF-β1、Smad2、Smad3、HA、PCⅢ、LN、CⅣ水平;分析入院时血清TGF-β1、Smad2、Smad3、HA、PCⅢ、LN、CⅣ水平与肝纤维化分期、炎症活动分级的相关性。CHB肝纤维化患者治疗3个月后,根据患者预后分为预后良好和预后不良亚组,比较预后良好和预后不良患者入院时血清TGF-β1、Smad2、Smad3、HA、PCⅢ、LN、CⅣ水平;分析入院时血清TGF-β1、Smad2、Smad3、HA、PCⅢ、LN、CⅣ水平联合检测对CHB肝纤维化患者预后不良的预测价值。结果研究组入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ高于对照组(P<0.05);不同肝纤维化分期、炎症活动分级CHB肝纤维化患者入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ比较:S1<S2<S3<S4、G1<G2<G3<G4,差异有统计学意义(P<0.05);入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ水平与肝纤维化分期、炎症活动分级均呈正相关(P<0.05)。预后良好患者入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ水平均低于预后不良患者(P<0.05);入院时血清TGF-β1、Smad2、Smad3、HA、LN、PCⅢ、CⅣ水平联合预测肝纤维化患者预后不良的曲线下面积(AUC)优于各指标单一检测(P<0.05)。结论CHB肝纤维化患者入院时血清TGF-β1、Smad2、Smad3、HA、PCⅢ、LN、CⅣ水平均呈现高表达,且与肝纤维化分期、炎症活动分级密切相关,其联合检测对CHB肝纤维化患者预后有较高的预测价值,可用于评估CHB肝纤维化患者病情严重程度和预后,为制定针对性治疗措施提供参考。 展开更多
关键词 慢性乙型肝炎 肝纤维化 转化生长因子-β1 Smad同源蛋白2 Smad同源蛋白3 透明质酸 Ⅲ型前胶原 层黏连蛋白 Ⅳ型胶原 严重程度 预后
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重组贻贝粘蛋白在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用研究 被引量:2
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作者 陈日新 裴理皓 +1 位作者 许丛丛 司佳薇 《中国美容医学》 CAS 2024年第7期11-14,共4页
目的:探究重组贻贝粘蛋白水凝胶敷料(Recombined mussel adhesive protein hydrogel dressing,Rmaphd)在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用效果。方法:选择2022年6月-2023年2月面部痤疮萎缩性瘢痕患者117例,分... 目的:探究重组贻贝粘蛋白水凝胶敷料(Recombined mussel adhesive protein hydrogel dressing,Rmaphd)在点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复中的应用效果。方法:选择2022年6月-2023年2月面部痤疮萎缩性瘢痕患者117例,分为Rmaphd组、重组人表皮生长因子(Recombinant human epidermal growth factor,rhEGF)组和对照组,每组39例,三组均给予点阵CO_(2)激光术治疗,术后分别给予Rmaphd、rhEGF及生理盐水处理,比较三组疗效、ECCA评分、症状持续时间以及生活质量评分。结果:Rmaphd组和rhEGF组总有效率分别为92.31%和94.87%,均高于对照组76.92%(P<0.05),术后ECCA评分低于对照组(P<0.05),术后疼痛、红斑、痂皮持续时间短于对照组(P<0.05),Acne-QoL各指标得分优于对照组(P<0.05);上述各临床Rmaphd组与rhEGF组差异无统计学意义(P>0.05)。结论:Rmaphd用于点阵CO_(2)激光治疗面部痤疮萎缩性瘢痕术后创面修复疗效显著,具备在临床上辅助激光治疗术后修复的应用潜力。 展开更多
关键词 重组贻贝粘蛋白 水凝胶敷料 点阵CO_(2)激光 痤疮 瘢痕 创面 修复
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2017年~2023年河南省猪圆环病毒2型的流行调查及遗传变异分析
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作者 冷超粮 马秀秀 +14 位作者 宋佳静 王佳宝 贾楠 田想 刘华 李峻婕 段竹君 刘思 翟洪月 张腾 史鸿飞 李娜 姚伦广 阚云超 田志军 《中国预防兽医学报》 CAS CSCD 北大核心 2024年第9期960-966,共7页
为了解河南省猪圆环病毒2型(PCV2)的流行及变异情况,本研究采集该地区规模化猪场2017年1月~2023年6月939份表现为繁殖障碍和呼吸道症状的病猪血液或组织样品,采用PCR方法进行PCV2检测。结果显示,PCV2总阳性率为31.42%(295/939);2017年~2... 为了解河南省猪圆环病毒2型(PCV2)的流行及变异情况,本研究采集该地区规模化猪场2017年1月~2023年6月939份表现为繁殖障碍和呼吸道症状的病猪血液或组织样品,采用PCR方法进行PCV2检测。结果显示,PCV2总阳性率为31.42%(295/939);2017年~2022年PCV2阳性率逐年降低,分别为58.65%(61/104)、49.48%(48/97)、28.57%(36/126)、16.15%(31/192)、11.52%(19/165)和7.87%(7/89),而2023年迅速上升,达到56.02%(93/166)。利用PCR扩增29份PCV2阳性样品的全基因组序列并测序,采用Meg Align分析PCV2流行株全基因组序列与Gen Bank中4株PCV2参考株全基因组序列的同源性;采用MEGA 11软件利用NJ法构建PCV2流行株ORF2基因与Gen Bank中24株PCV2参考株ORF2基因的系统发育树;采用Meg Align分析PCV2流行株Cap蛋白氨基酸序列的变异特征;采用RDP4和Sim Plot分析PCV2流行株全基因组的重组特征。全基因组同源性分析结果显示,本研究鉴定的PCV2全基因组序列之间的同源性为95.1%~100%,与PCV2参考株的同源性为93.7%~98.6%,其中与疫苗株PCV2a LG(HM038034)、PCV2b DBN-SX07-2(HM641752)和PCV2d SH(AY686763)的同源性分别为94.8%~96.2%、95.3%~98.6%和96.6%~97.8%,与来自丹麦的代表株PCV2c DK1980PMWSfree株(EU148503)的同源性为93.7%~95.1%。此外,两株2023年的PCV2流行株HN230522和HN231217与参考株的同源性仅为94.5%~97.9%。进化树结果显示,有19株PCV2流行株与PCV2d基因型参考株聚为一个分支,10株与PCV2b基因型参考株聚为一个分支。其中今年出现的PCV2流行株HN230522和HN231217株虽然属于PCV2d基因型,但处于一个相对独立的分支。Cap蛋白氨基酸序列分析结果显示,与疫苗株PCV2a LG(HM038034)、PCV2b DBN-SX07-2(HM641752)和PCV2d SH株(AY686763)相比,部分PCV2流行株在构象表位区(aa47~aa85和aa165~aa200)存在R^(48)H、A^(59)K/R、G^(85)D、P^(151)T、N^(178)S、R^(180)K和G^(197)S的突变,在基因型特异性结构域(aa190~aa191/aa206/aa210)存在K^(206)I的突变,且HN230522株在核定位信号区(NLS)(aa1~aa41)存在特有的V^(30)L突变,HN231217株在基因型特异性结构域(aa89~aa91)存在特有的^(89)RTV^(91)残基。重组分析结果显示,有高达65.52%(19/29)的PCV2流行株存在疑似的重组片段,且重组片段全部位于ORF1中。上述结果表明,今年以来河南省猪场PCV2阳性率快速上升,且流行株出现了较大变异,应加强对PCV2流行动态和遗传变异的监测。本研究为河南省PCV2分子流行病学、疫苗研究提供了参考依据。 展开更多
关键词 猪圆环病毒2 流行病学调查 序列分析 CAP蛋白 遗传变异
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子痫前期患者胎盘中EG-VEGF及其PROKR1和PROKR2的表达情况
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作者 李琼 王永红 +3 位作者 刘淼 张桂玲 陈瑶 赵晨阳 《国际检验医学杂志》 CAS 2024年第7期818-823,共6页
目的探讨子痫前期(PE)患者血清、胎盘中内分泌腺源性血管内皮生长因子(EG-VEGF)、前动力蛋白1(PROK1)、前动力蛋白2(PROK2)的表达情况及其临床意义。方法选取2019年1月至2022年1月该院收治的100例PE患者作为研究组,依据病情严重程度分... 目的探讨子痫前期(PE)患者血清、胎盘中内分泌腺源性血管内皮生长因子(EG-VEGF)、前动力蛋白1(PROK1)、前动力蛋白2(PROK2)的表达情况及其临床意义。方法选取2019年1月至2022年1月该院收治的100例PE患者作为研究组,依据病情严重程度分为轻度组和重度组,各50例。同时,选取同期行剖宫产手术的50例健康孕妇作为对照组。比较两组临床指标[γ-谷氨酰转移酶(GGT)、乳酸脱氢酶(LDH)、尿酸(UA)、收缩压、舒张压、血小板计数、新生儿体重、螺旋动脉管壁厚度、螺旋动脉管腔面积、丙二醛(MDA)、超氧化物歧化酶(SOD)、谷氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、尿素氮(BUN)]。对比分析不同组、不同病情严重程度患者血清、胎盘组织中EG-VEGF、PROKR1、PROKR2 mRNA水平。采用免疫组化法检测两组胎盘组织中EG-VEGF、PROKR1、PROKR2阳性表达率,分析研究组血清各指标与临床特征、病情严重程度相关性,以及检测不同新生儿结局的孕妇血清中各指标水平。采用受试者工作特征(ROC)曲线分析血清各指标水平对PE的诊断价值。结果与对照组比较,研究组收缩压、舒张压、血小板计数、螺旋动脉管壁厚度升高,GGT、LDH、UA、ALT、AST、MDA水平升高,新生儿体重、螺旋动脉管腔面积降低,BUN、SOD水平降低,差异均有统计学意义(P<0.05)。与对照组比较,研究组血清、胎盘组织中EG-VEGF、PROKR1、PROKR2 mRNA水平降低(P<0.05),且其水平与新生儿体重、螺旋动脉管腔面积、BUN、SOD呈正相关,而与收缩压、舒张压、螺旋动脉管壁厚度、GGT、LDH、ALT、MDA、病情严重程度呈负相关(P<0.05)。研究组EG-VEGF、PROKR1、PROKR2阳性表达率低于对照组(P<0.05);研究组发生新生儿不良结局的孕妇血清中EG-VEGF、PROKR1、PROKR2水平低于对照组(P<0.05)。EG-VEGF、PROKR1、PROKR2联合诊断PE的曲线下面积大于单项诊断(P<0.05)。结论PE患者血清、胎盘中EG-VEGF、PROKR1、PROKR2呈低表达,且与临床特征、病情严重程度、新生儿不良结局存在相关性,联合检测其水平可提高PE的诊断效能。 展开更多
关键词 子痫前期 内分泌腺源性血管内皮生长因子 前动力蛋白1 前动力蛋白2 不良结局
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基于BMP-2/BMP-7机制探讨生龙接骨胶囊预防老年骨质疏松性胸腰椎骨折术后再发性骨折的作用
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作者 邓平征 周龙殿 +4 位作者 张斌 胡和军 邓雄伟 徐南云 江共涛 《中国当代医药》 CAS 2024年第12期4-8,共5页
目的探讨生龙接骨胶囊对老年骨质疏松性胸腰椎骨折(OTF)术后再发性骨折的作用,并基于骨形态发生蛋白-2/骨形态发生蛋白-7(BMP-2/BMP-7)机制初步分析其作用机制。方法选取2020年1月至2022年10月在南昌市洪都中医院收治的100例行经皮椎体... 目的探讨生龙接骨胶囊对老年骨质疏松性胸腰椎骨折(OTF)术后再发性骨折的作用,并基于骨形态发生蛋白-2/骨形态发生蛋白-7(BMP-2/BMP-7)机制初步分析其作用机制。方法选取2020年1月至2022年10月在南昌市洪都中医院收治的100例行经皮椎体成形术(PVP)的老年OTF患者为研究对象,按随机数字表法分为常规组(50例)和胶囊组(50例)。常规组采用常规的PVP治疗,胶囊组患者在常规组基础上服用生龙接骨胶囊治疗。比较两组患者椎体结构(Cobb角和伤椎椎体前缘高度比)、治疗前后血清BMP-2、BMP-7水平、骨代谢指标[骨特异性碱性磷酸酶(BALP)、Ⅰ型原胶原N端前肽(PⅠNP)、骨钙素(OST)]、骨密度(BMD)、康复情况[Oswestry腰椎功能障碍指数(ODI)]评估、疼痛等级[视觉模拟评分法(VAS)]评分、临床有效率、椎体再骨折发生率和不良反应发生情况。结果治疗后,两组患者Cobb角改善,伤椎椎体前缘高度比优于治疗前,胶囊组均优于常规组,差异有统计学意义(P<0.05);胶囊组的BMP-2、BMP-7表达量高于常规组,差异有统计学意义(P<0.05);患者术后再发性骨折情况均良好,胶囊组愈合速度快于常规组,差异有统计学意义(P<0.05);治疗后,胶囊组的BALP、PⅠNP、OST均高于常规组,差异有统计学意义(P<0.05);两组患者的BMD高于治疗前,且胶囊组高于常规组,ODI评分、VAS评分均低于治疗前,且胶囊组低于常规组,差异有统计学意义(P<0.05);胶囊组的临床总有效率(95.0%)高于常规组(80.0%),胶囊组的再骨折发生率(4%)低于常规组(18%),差异有统计学意义(P<0.05);两组患者均未见明显不良反应。结论生龙接骨胶囊能通过上调患者血清BMP-2、BMP-7水平,改善BMD从而预防老年OTF的术后再发性骨折,其机制可能与生龙接骨胶囊能刺激BMP信号通路,加速成骨细胞分化有关。 展开更多
关键词 骨折 生龙接骨胶囊 骨形态发生蛋白-2 骨形态发生蛋白-7 术后再发性骨折
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