血清NY-ESO-1自身抗体和MMP1联合检测对食管鳞状细胞癌的诊断价值

目的:探讨血清基质金属蛋白酶-1(matrix metalloproteinase-1,MMP1)和纽约食管鳞状细胞癌抗原-1(New York esophageal squamous cell carcinoma 1,NY-ESO-1)自身抗体联合检测在食管鳞状细胞癌中的诊断意义。方法:应用酶联免疫吸附实验检测120例食管鳞状细胞癌患者和120例正常对照血清中MMP1和NY-ESO-1自身抗体的表达水平,采用受试者工作特征(receiver operating characteristic,ROC)曲线评价诊断效能。结果:血清MMP1和NY-ESO-1自身抗体在食管鳞状细胞癌患者中的表达均明显高于正常对照[(8.070±5.738)ng/mL vs(4.331±3.137)ng/mL,Z=6.214,P<0.001;0.463±0.571 vs 0.156±0.086,Z=5.210,P<0.001]。ROC曲线显示,当血清MMP1为最佳诊断临界值10.586 ng/mL时,其在诊断食管鳞状细胞癌的曲线下面积(area under the ROC curve,AUC)为0.732(95%CI:0.671~0.787),敏感度为24.2%,特异度为95.0%。NY-ESO-1自身抗体诊断食管鳞状细胞癌AUC为0.695(95%CI:0.632~0.752),敏感度为33.0%,特异度为95.0%。MMP1和NY-ESO-1自身抗体联合检测诊断食管鳞状细胞癌的AUC为0.800(95%CI:0.744~0.849),敏感度为47.5%,特异度为95.0%。结论:血清MMP1和NY-ESO-1自身抗体联合检测可能有助于提高食管鳞状细胞癌的诊断效能。

Barley Protein LFBEP-C1 from Lactiplantibacillus plantarum dy-1 Fermented Barley Extracts by Inhibiting Lipid Accumulation in a Caenorhabditis elegans Model

Objective This study aimed to investigate the lipid-lowering activity of LFBEP-C1 in high glucose-fed Caenorhabditis elegans(C.elegans).Methods In this study,the fermented barley protein LFBEP-C1 was prepared and tested for its potential anti-obesity effects on C.elegans.The worms were fed Escherichia coli OP50(E.coli OP50),glucose,and different concentrations of LFBEP-C1.Body size,lifespan,movement,triglyceride content,and gene expression were analyzed.The results were analyzed using ANOVA and Tukey's multiple comparison test.Results Compared with the model group,the head-swing frequency of C.elegans in the group of LFBEP-C1 at 20μg/mL increased by 33.88%,and the body-bending frequency increased by 27.09%.This indicated that LFBEP-C1 improved the locomotive ability of C.elegans.The average lifespan of C.elegans reached 13.55 days,and the body length and width of the C.elegans decreased after LFBEP-C1 intake.Additionally,LFBEP-C1 reduced the content of lipid accumulation and triglyceride levels.The expression levels of sbp-1,daf-2,and mdt-15 significantly decreased,while those of daf-16,tph-1,mod-1,and ser-4 significantly increased after LFBEP-C1 intake.Changes in these genes explain the signaling pathways that regulate lipid metabolism.Conclusion LFBEP-C1 significantly reduced lipid deposition in C.elegans fed a high-glucose diet and alleviated the adverse effects of a high-glucose diet on the development,lifespan,and exercise behavior of C.elegans.In addition,LFBEP-C1 regulated lipid metabolism mainly by mediating the expression of genes in the sterol regulatory element-binding protein,insulin,and 5-hydroxytryptamine signaling pathways.

In situ direct reprogramming of astrocytes to neurons via polypyrimidine tract-binding protein 1 knockdown in a mouse model of ischemic stroke

In situ direct reprogramming technology can directly convert endogenous glial cells into functional neurons in vivo for central nervous system repair. Polypyrimidine tract-binding protein 1(PTB) knockdown has been shown to reprogram astrocytes to functional neurons in situ. In this study, we used AAV-PHP.e B-GFAP-sh PTB to knockdown PTB in a mouse model of ischemic stroke induced by endothelin-1, and investigated the effects of GFAP-sh PTB-mediated direct reprogramming to neurons. Our results showed that in the mouse model of ischemic stroke, PTB knockdown effectively reprogrammed GFAP-positive cells to neurons in ischemic foci, restored neural tissue structure, reduced inflammatory response, and improved behavioral function. These findings validate the effectiveness of in situ transdifferentiation of astrocytes, and suggest that the approach may be a promising strategy for stroke treatment.

Low Selenium and Low Protein Exacerbate Myocardial Damage in Keshan Disease by Affecting the PINK1/Parkin-mediated Mitochondrial Autophagy Pathway

Objective Keshan disease(KD)is a myocardial mitochondrial disease closely related to insufficient selenium(Se)and protein intake.PTEN induced putative kinase 1(PINK1)/Parkin mediated mitochondrial autophagy regulates various physiological and pathological processes in the body.This study aimed to elucidate the relationship between PINK1/Parkin-regulated mitochondrial autophagy and KD-related myocardial injury.Methods A low Se and low protein animal model was established.One hundred Wistar rats were randomly divided into 5 groups(control group,low Se group,low protein group,low Se+low protein group,and corn from KD area group).The JC-1 method was used to detect the mitochondrial membrane potential(MMP).ELISA was used to detect serum creatine kinase MB(CK-MB),cardiac troponin I(cTnI),and mitochondrial-glutamicoxalacetic transaminase(M-GOT)levels.RT-PCR and Western blot analysis were used to detect the expression of PINK1,Parkin,sequestome 1(P62),and microtubule-associated proteins1A/1B light chain 3B(MAP1LC3B).Results The MMP was significantly decreased and the activity of CK-MB,cTnI,and M-GOT significantly increased in each experimental group(low Se group,low protein group,low Se+low protein group and corn from KD area group)compared with the control group(P<0.05 for all).The mRNA and protein expression levels of PINK1,Parkin and MAP1LC3B were profoundly increased,and those of P62 markedly decreased in the experimental groups compared with the control group(P<0.05 for all).Conclusion Low Se and low protein levels exacerbate myocardial damage in KD by affecting the PINK1/Parkin-mediated mitochondrial autophagy pathway.

Mesenchymal stromal cells modulate unfolded protein response and preserve β-cell mass in type 1 diabetes

Introduction:Transplantation of mesenchymal stromal cells(MSCs)is a promising therapy for type 1 diabetes(T1D).However,whether the infused MSCs affect the endoplasmic reticulum stress or subsequent unfolded protein response inβcells remains unclear.Methods:To investigate this,we induced early-onset T1D in non-obese diabetic mice using streptozotocin.Subsequently,T1D mice were randomly assigned to receive either MSCs or phosphate-buffered saline.We observed the in vivo homing of MSCs and assessed their effectiveness by analyzing blood glucose levels,body weight,histopathology,pancreatic protein expression,and serum levels of cytokines,proinsulin,and C-peptide.Results:Infused MSCs were found in the lungs,liver,spleen,and pancreas of T1D mice.They exhibited various effects,including reducing blood glucose levels,regulating immunity,inhibiting inflammation,increasingβ-cell areas,and reducing the expression of key proteins in the unfolded protein response pathway.Fasting serum proinsulin and C-peptide levels were significantly higher in the MSCs treatment group than in the T1D model group.However,there was no significant difference in the biomarker ofβ-cell endoplasmic reticulum stress,the ratio of fasting serum proinsulin to C-peptide,between the two groups.Conclusion:Ourfindings reveal that MSCs infusion does not alleviate endoplasmic reticulum stress inβcells directly but modulates the unfolded protein response pathway to preserveβ-cell mass and function in T1D mice.

C-reactive protein to albumin ratio predict responses to programmed cell death-1 inhibitors in hepatocellular carcinoma patients

BACKGROUND Over the years,programmed cell death-1(PD-1)inhibitors have been routinely used for hepatocellular carcinoma(HCC)treatment and yielded improved survival outcomes.Nonetheless,significant heterogeneity surrounds the outcomes of most studies.Therefore,it is critical to search for biomarkers that predict the efficacy of PD-1 inhibitors in patients with HCC.AIM To investigate the role of the C-reactive protein to albumin ratio(CAR)in evaluating the efficacy of PD-1 inhibitors for HCC.METHODS The clinical data of 160 patients with HCC treated with PD-1 inhibitors from January 2018 to November 2022 at the First Affiliated Hospital of Guangxi Medical University were retrospectively analyzed.RESULTS The optimal cut-off value for CAR based on progression-free survival(PFS)was determined to be 1.20 using x-tile software.Cox proportional risk model was used to determine the factors affecting prognosis.Eastern Cooperative Oncology Group performance status[hazard ratio(HR)=1.754,95%confidence interval(95%CI)=1.045-2.944,P=0.033],CAR(HR=2.118,95%CI=1.057-4.243,P=0.034)and tumor number(HR=2.932,95%CI=1.246-6.897,P=0.014)were independent prognostic factors for overall survival.CAR(HR=2.730,95%CI=1.502-4.961,P=0.001),tumor number(HR=1.584,95%CI=1.003-2.500,P=0.048)and neutrophil to lymphocyte ratio(HR=1.120,95%CI=1.022-1.228,P=0.015)were independent prognostic factors for PFS.Two nomograms were constructed based on independent prognostic factors.The C-index index and calibration plots confirmed that the nomogram is a reliable risk prediction tool.The ROC curve and decision curve analysis confirmed that the nomogram has a good predictive effect as well as a net clinical benefit.CONCLUSION Overall,we reveal that the CAR is a potential predictor of short-and long-term prognosis in patients with HCC treated with PD-1 inhibitors.If further verified,CAR-based nomogram may increase the number of markers that predict individualized prognosis.

Polycytosine RNA-binding protein 1 regulates osteoblast function via a ferroptosis pathway in type 2 diabetic osteoporosis

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.

AAV mediated carboxyl terminus of Hsp70 interacting protein overexpression mitigates the cognitive and pathological phenotypes of APP/PS1 mice

The E3 ubiquitin ligase,carboxyl terminus of heat shock protein 70(Hsp70)interacting protein(CHIP),also functions as a co-chaperone and plays a crucial role in the protein quality control system.In this study,we aimed to investigate the neuroprotective effect of overexpressed CHIP on Alzheimer’s disease.We used an adeno-associated virus vector that can cross the blood-brain barrier to mediate CHIP overexpression in APP/PS1 mouse brain.CHIP overexpression significantly ameliorated the performance of APP/PS1 mice in the Morris water maze and nest building tests,reduced amyloid-βplaques,and decreased the expression of both amyloid-βand phosphorylated tau.CHIP also alleviated the concentration of microglia and astrocytes around plaques.In APP/PS1 mice of a younger age,CHIP overexpression promoted an increase in ADAM10 expression and inhibitedβ-site APP cleaving enzyme 1,insulin degrading enzyme,and neprilysin expression.Levels of HSP70 and HSP40,which have functional relevance to CHIP,were also increased.Single nuclei transcriptome sequencing in the hippocampus of CHIP overexpressed mice showed that the lysosomal pathway and oligodendrocyte-related biological processes were up-regulated,which may also reflect a potential mechanism for the neuroprotective effect of CHIP.Our research shows that CHIP effectively reduces the behavior and pathological manifestations of APP/PS1 mice.Indeed,overexpression of CHIP could be a beneficial approach for the treatment of Alzheimer’s disease.

Hmo1:A versatile member of the high mobility group box family of chromosomal architecture proteins

Eukaryotic chromatin consisting of nucleosomes connected by linker DNA is organized into higher order structures,which is facilitated by linker histone H1.Formation of chromatin compacts and protects the genome,but also hinders DNA transactions.Cells have evolved mechanisms to modify/remodel chromatin resulting in chromatin states suitable for genome functions.The high mobility group box(HMGB)proteins are non-histone chromatin architectural factors characterized by one or more HMGB motifs that bind DNA in a sequence nonspecific fashion.They play a major role in chromatin dynamics.The Saccharomyces cerevisiae(yeast hereafter)HMGB protein Hmo1 contains two HMGB motifs.However,unlike a canonical HMGB protein that has an acidic C-terminus,Hmo1 ends with a lysine rich,basic,C-terminus,resembling linker histone H1.Hmo1 exhibits characteristics of both HMGB proteins and linker histones in its multiple functions.For instance,Hmo1 promotes transcription by RNA polymerases I and II like canonical HMGB proteins but makes chromatin more compact/stable like linker histones.Recent studies have demonstrated that Hmo1 destabilizes/disrupts nucleosome similarly as other HMGB proteins in vitro and acts to maintain a common topological architecture of genes in yeast genome.This minireview reviews the functions of Hmo1 and the underlying mechanisms,highlighting recent discoveries.

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

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.

NRG1、HER3在前列腺癌组织中的表达及其与临床病理特征和预后的关系

目的研究前列腺癌(PC)组织中神经调节蛋白1(NRG1)、人表皮生长因子受体3(HER3)表达与临床病理特征及预后的关系。方法选取2015年2月—2020年2月吉林省人民医院泌尿外科诊治PC患者96例,免疫组织化学检测组织中NRG1、HER3表达;Kaplan-Meier曲线(Log-Rank检验)比较不同NRG1、HER3表达对PC患者预后的影响;COX回归分析PC患者预后的影响因素。结果PC癌组织中NRG1、HER3阳性率分别为78.13%(75/96)、75.00%(72/96),高于癌旁组织6.25%(6/96)、8.33%(8/96)(χ^(2)/P=101.670/<0.001,87.771/<0.001)。TNM分期Ⅲ期、Gleason评分>7分及术前PSA水平≥20μg/L患者癌组织中NRG1、HER3阳性率大于TNM分期Ⅰ~Ⅱ期、Gleason评分≤7分及术前PSA水平<20μg/L(χ^(2)/P=6.181/0.013,8.533/0.003;7.731/0.005,6.769/0.009;6.508/0.011,7.376/0.007)。NRG1阳性组、HER3阳性组3年累积无进展生存率分别低于NRG1阴性组、HER3阴性组(χ^(2)/P=4.267/0.039,5.499/0.019)。TNM分期Ⅲ期、Gleason评分>7分、术前PSA≥20μg/L、NRG1阳性,HER3阳性是影响PC患者预后的独立危险因素[OR(95%CI)=1.448(1.118~1.875),1.401(1.138~1.724),1.353(1.059~1.728),1.338(1.057~1.692),1.293(1.014~1.649)]。结论PC癌组织中NRG1、HER3表达升高,与PC不良临床病理特征相关,是新的评估PC预后的肿瘤标志物。

血清HMGB1、CCL20、HSP27水平与慢性牙周炎患者牙周病变程度的相关性分析

目的探讨血清高迁移率族蛋白1(HMGB1)、CC趋化因子配体20(CCL20)、热休克蛋白27(HSP27)水平与慢性牙周炎(CP)患者牙周病变程度的相关性。方法选取2021年9月至2023年8月在新乡医学院第一附属医院诊治的60例CP患者纳入观察组,根据1∶1原则,另选取同期牙周健康者60例纳入对照组。比较两组及不同牙周病变程度CP患者血清HMGB1、CCL20、HSP27水平,分析各指标水平与CP牙周病变程度的相关性及联合诊断价值,并分析不同血清水平患者发生CP的危险度。结果观察组血清HMGB1、CCL20、HSP27水平高于对照组(P<0.05);不同牙周病变程度CP患者血清HMGB1、CCL20、HSP27水平比较:轻度<中度<重度,且各指标水平与牙周病变程度均呈正相关(P<0.05);入院时HMGB1、CCL20、HSP27水平联合诊断CP的曲线下面积(AUC)为0.905,最佳诊断敏感度为91.67%,特异度为88.33%,约登指数0.800,且各指标高水平患者发生CP的危险度是低水平的1.105倍、1.034倍、1.105倍(P<0.05)。结论HMGB1、CCL20、HSP27在CP患者血清中呈异常高表达,各指标水平与牙周病变程度均呈正相关,且联合检测对CP具有较高诊断价值,可作为临床诊断CP、评估牙周病变程度的有效指标。

慢性肾小球肾炎患者MCP-1和sFlt-1表达与肾功能及预后的相关性研究

目的:分析慢性肾小球肾炎患者血清单核细胞趋化蛋白-1(MCP-1)和可溶性血管内皮细胞生长因子受体1(sFlt-1)水平变化及其与肾功能和预后的关系。方法:纳入2018-01—2020-03本院收治的慢性肾小球肾炎患者122例(研究组),选取同时期本院体检健康者128例(对照组)。研究组依据肾功能损害情况分为A组(肾功能正常16例)、B组(轻中度肾功能损害88例)、C组(重度肾功能损害18例);根据随访结局,将患者分为肾功能衰竭组(22例)和病情缓解组(100例)。采用酶联免疫吸附法(ELISA)检测受试者MCP-1、sFlt-1水平。采用全自动生化分析仪检测所有受试者血尿素氮(BUN)、血肌酐(Scr)水平,采用慢性肾脏疾病流行病学合作研究公式(CKD-EPI)估算肾小球滤过率(eGFR)。Pearson法分析MCP-1、sFlt-1与BUN、Scr、eGFR的相关性。采用受试者工作特征(ROC)曲线评价血清MCP-1、sFlt-1水平预测慢性肾小球肾炎患者预后的价值。结果:与对照组相比,研究组MCP-1、sFlt-1、BUN、Scr水平较高(P<0.05),eGFR较低(P<0.05)。C组BUN、Scr、MCP-1、sFlt-1水平明显高于A组、B组(P<0.05),B组BUN、Scr、MCP-1、sFlt-1水平明显高于A组(P<0.05)。Pearson相关性分析显示,MCP-1与BUN、Scr均呈正相关(P<0.05),与eGFR呈负相关(P<0.05),sFlt-1与BUN、Scr均呈正相关(P<0.05),与eGFR呈负相关(P<0.05)。与病情缓解组相比,肾功能衰竭组患者清中MCP-1、sFlt-1水平较高(P<0.05)。ROC分析显示,血清MCP-1、sFlt-1水平预测慢性肾小球肾炎患者预后的AUC分别为0.967、0.965,MCP-1联合sFlt-1预测慢性肾小球肾炎患者预后的AUC为0.984,灵敏度100.00%,特异度94.00%。结论:慢性肾小球肾炎患者血清MCP-1、sFlt-1水平明显上升,可作为患者预后评估的潜在生物学指标。

LncRNA ZEB1-AS1和LncRNA SOX2OT在糖尿病肾病患者中的表达及与肾功能的相关性研究

目的探究长链非编码RNA锌指E盒结合同源盒蛋白1反义链1(LncRNA ZEB1-AS1)和长链非编码RNA性别决定相关基因簇2重叠转录本(LncRNA SOX2OT)在糖尿病肾病(DN)患者中的表达及与肾功能的相关性。方法选取于2021年11月—2023年12月在武汉大学人民医院肾内科收治的DN患者106例为DN组,并根据24 h尿蛋白定量(24 h Upro)水平分为正常蛋白尿亚组43例(<30 mg)、微量蛋白尿亚组39例(30~<300 mg)、大量蛋白尿亚组24例(≥300 mg),另选取同期医院单纯糖尿病患者106例作对照组,检测患者血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平;Pearson法分析LncRNA ZEB1-AS1和LncRNA SOX2OT与肾功能指标的相关性;Logistic分析影响DN患者肾功能损伤的因素。结果DN组血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平低于对照组(t=11.471、10.257,P均<0.001)。血清LncRNA ZEB1-AS1、LncRNA SOX2OT比较,正常尿蛋白亚组>微量尿蛋白亚组>大量尿蛋白亚组(F=58.720、117.722,P均<0.001),BUN、SCr、UA水平比较,正常尿蛋白亚组<微量尿蛋白亚组<大量尿蛋白亚组,差异均有统计学意义(F=122.493、595.589、53.178,P均<0.001);LncRNA ZEB1-AS1、LncRNA SOX2OT分别与BUN、SCr、UA呈负相关(r=-0.487、-0.498、-0.521,-0.527、-0.515、-0.534,P均<0.001);Logistic回归分析显示,糖尿病病程长及高BUN、SCr、UA水平是影响DN患者肾功能损伤的危险因素[OR(95%CI)=1.672(1.128~2.479)、2.839(1.534~5.253)、2.754(1.512~5.017)、2.693(1.464~4.954)],高LncRNA ZEB1-AS1、LncRNA SOX2OT是保护因素[OR(95%CI)=0.875(0.798~0.959)、0.898(0.832~0.969)]。结论血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平与DN患者肾功能有关,可能是评估DN患者肾功能的潜在指标。

OGDHL、FHL1在非小细胞肺癌组织中的表达及其临床意义

目的分析OGDHL、4个半LIM结构域蛋白1(FHL1)在非小细胞肺癌组织中的表达水平及其临床意义。方法选取80例非小细胞肺癌患者癌组织标本、癌旁组织标本(距肿瘤边缘4cm处),采用免疫组织化学染色法检测所有标本组织中OGDHL、FHL1表达水平。采用χ^(2)检验分析OGDHL、FHL1表达与患者病理特征的关系,采用Kaplan-Meier生存曲线分析OGDHL、FHL1表达与患者预后的关系,多因素Cox回归模型分析非小细胞肺癌患者预后的影响因素。结果非小细胞肺癌患者癌组织OGDHL高表达率明显低于癌旁组织(35.00%vs 62.50%,P<0.05),FHL1高表达率明显高于癌旁组织(67.50%vs 40.00%,P<0.05)。OGDHL、FHL1表达水平与非小细胞肺癌患者TNM分期、淋巴结转移、分化程度密切相关(P<0.05)。OGDHL高表达患者术后5年总生存率为82.14%,低表达患者术后5年总生存率为36.54%,两者比较差异有统计学意义(P<0.05);FHL1高表达患者术后5年总生存率为40.74%,低表达患者术后5年总生存率为76.92%,两者比较差异有统计学意义(P<0.05)。单因素分析得出,TNM分期、淋巴结转移、分化程度、OGDHL表达、FHL1表达均与非小细胞肺癌患者预后密切相关(P<0.05)。TNMⅢ期、淋巴结转移、低分化、OGDHL低表达、FHL1高表达均为影响非小细胞肺癌患者预后的独立危险因素(P<0.05)。结论非小细胞肺癌患者癌组织中OGDHL蛋白呈低表达,FHL1蛋白呈高表达,两者表达水平与非小细胞肺癌患者的临床病理特征及预后密切相关,能够作为评估患者预后的有效指标。

脑梗死继发癫痫患者血清NRG1、VILIP-1水平及临床意义

目的检测脑梗死继发癫痫患者的血清神经调节蛋白1(NRG1)、视锥蛋白样蛋白-1(VILIP-1)水平并探讨其临床意义。方法选取2019年1月至2023年4月期间安阳市第三人民医院收治的100例脑梗死继发癫痫患者作为研究组,并依照发病时间分为早发型癫痫组(n=53)和晚发型癫痫组(n=47)。选取同期脑梗死未继发癫痫患者60例作为对照组。比较早发型癫痫组和晚发型癫痫组患者的血清NRG1、VILIP-1水平以及研究组和对照组患者的临床资料,采用Pearson相关分析血清NRG1与VILIP-1的关系,采用多因素Logistic回归分析脑梗死继发癫痫的影响因素,绘制受试者工作特征曲线(ROC)分析NRG1、VILIP-1对脑梗死继发癫痫的预测价值。结果早发型癫痫患者的血清NRG1、VILIP-1水平分别为(23.72±3.47)pg/mL、(627.49±72.29)pg/mL,明显高于晚发型癫痫的(20.38±3.60)pg/mL、(572.52±61.49)pg/mL,差异均有统计学意义(P<0.05);研究组患者入院时的美国国立卫生研究院卒中量表(NIHSS)评分、血清神经元特异性烯醇化酶(NSE)、NRG1、VILIP-1、同型半胱氨酸(Hcy)水平分别为(12.58±2.86)分、(8.87±1.54)k U/L、(22.15±3.53)pg/mL、(601.65±67.21)pg/mL、(31.53±4.08)μmol/L,明显高于对照组的(11.66±2.12)分、(7.76±1.67)k U/L、(18.72±2.83)pg/mL、(542.74±61.71)pg/mL、(31.53±4.08)μmol/L,而脑源性神经生长因子(BDNF)为(4.18±0.89)μg/mL,明显低于对照组的(5.02±1.10)μg/mL,差异均有统计学意义(P<0.05);Pearson相关分析结果显示,血清NRG1与VILIP-1表达水平呈正相关(r=0.553,P<0.05);多因素Logistic回归分析结果显示,NSE、NRG1、VILIP-1、Hcy均是脑梗死继发癫痫的危险因素(P<0.05),BDNF是脑梗死继发癫痫的保护因素(P<0.05);ROC分析结果显示,血清NRG1、VILIP-1预测脑梗死继发癫痫的AUC分别为0.844、0.768,NRG1联合VILIP-1预测的AUC为0.883,两者联合预测脑梗死继发癫痫的AUC优于NRG1(Z_(两者联合-NRG1)=2.058)、VILIP-1(Z_(两者联合-VILIP-1)=3.820)单独指标(P<0.05)。结论脑梗死继发癫痫患者血清NRG1、VILIP-1水平异常高表达,是患者脑梗死后继发癫痫的危险因素,两者联合检测对预测脑梗死后继发癫痫具有较高的临床价值。

血清长链非编码RNA肌动蛋白纤维相关蛋白1-反义RNA1水平与钙化性主动脉瓣狭窄病人左心室功能的相关性研究

目的 分析血清长链非编码RNA(lncRNA)肌动蛋白纤维相关蛋白1-反义RNA1(AFAP1-AS1)表达水平与钙化性主动脉瓣狭窄(CAS)病人左心室收缩及舒张功能的相关性。方法 于2020年1月至2021年12月,选取中国中医科学院广安门医院就诊的CAS病人129例作为CAS组[左心室射血分数(LVEF)≥50%],同期该院健康志愿者130例作为对照组。收集病人人口学资料、超声及实验室生化指标,检测血清lncRNA AFAP1-AS1表达。受试者操作特征曲线(ROC曲线)分析血清lncRNA AFAP1-AS1诊断CAS效能。结果 对照组血清lncRNA AFAP1-AS1表达水平(1.15±0.18)低于CAS组(1.58±0.30)(P<0.001)。轻度狭窄者血清lncRNA AFAP1-AS1表达水平(1.37±0.26)低于中、重度狭窄者,而中度狭窄者lncRNA AFAP1-AS1表达水平(1.59±0.30)低于重度狭窄者(1.79±0.34)(P<0.001)。ROC结果显示,血清lncRNA AFAP1-AS1诊断CAS、重度狭窄的曲线下面积分别为0.86[95%CI:(0.82,0.91)]、0.88[95%CI:(0.82,0.94)]。CAS组AVA水平低于对照组(P<0.001),左室舒张末期内径(LVEDD)、左室舒张末期容积(LVEDV)、室间隔厚度(IVST)、左室后壁厚度(LVPWT)、左房前后径(LAD)、主动脉瓣平均压差(PGmean)、主动脉瓣峰值流速(Vmax)水平高于对照组(均P<0.001)。相关性分析显示,血清lncRNA AFAP1-AS1与LVEDD、Vmax、二尖瓣口舒张早期血流速度峰值(E峰)、二尖瓣口舒张晚期血流速度峰值(A峰)、LVEDV、PGmean、LVESD呈正相关(r=0.60、0.66、0.72、0.68、0.56、0.57、0.50,均P<0.001),与LVEF、AVA呈负相关(r=-0.78、-0.62,均P<0.001)。结论 CAS病人血清lncRNA AFAP1-AS1表达水平升高,与CAS病情严重程度以及左心室舒张、收缩功能有关,并可作为无创血清标志物辅助临床诊断CAS。

子痫前期患者胎盘中EG-VEGF及其PROKR1和PROKR2的表达情况

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。

circRNA SIPA1L1修饰牙髓干细胞来源外泌体促血管生成能力的机制

目的 探究环状RNA(circRNA)信号诱导增殖相关蛋白1样蛋白1(SIPA1L1)修饰的人牙髓干细胞(hDPSC)来源外泌体(Exo)对人脐静脉内皮细胞(HUVEC)血管生成能力的影响及机制。方法 从牙髓组织分离培养hDPSC,将circSIPA1L1过表达质粒载体转染至hDPSC后,分离Exo并进行鉴定。将HUVEC分为对照组、hDPSC Exo组、circSIPA1L1-hDPSC Exo组,培养48 h后,Matrigel基质胶血管形成实验检测血管形成能力,qRT-PCR和Western blot测定血管内皮细胞生长因子(VEGF)、血管内皮细胞生长因子受体2(VEGFR2)、胎盘生长因子(PGF)的表达水平。结果 从未转染的hDPSC与转染circSIPA1L1的hDPSC中成功分离出Exo,且相较于h DPSC来源的Exo,转染circSIPA1L1的hDPSC来源的Exo中circSIPA1L1相对表达量显著上调(P <0.05)。与hDPSC Exo组比较,circSIPA1L1-hDPSC Exo组HUVEC的管样结构形成数目显著增加(P <0.05),VEGF、VEGFR2、PGF mRNA与蛋白相对表达量也显著上调(P<0.05)。结论 circRNA SIPA1L1修饰hDPSC来源的Exo能够促进血管生成,其机制可能与上调VEGF、VEGFR2、PGF的表达水平有关。

中晚期宫颈癌患者血清HE4、TK1、DCLK1水平变化及其与化疗效果的关系

目的 分析中晚期宫颈癌患者血清人附睾蛋白4(HE4)、胸苷激酶1(TK1)、双皮质素样激酶1(DCLK1)变化及其与化疗效果的关系。方法 收集2020年1月至2023年1月于郑州大学第一附属医院接受化疗的215例中晚期宫颈癌患者的病历资料,根据纳入患者的化疗效果将其分为良好组和不良组,其中良好组疗效评估结果为完全缓解(CR)与部分缓解(PR),共173例,不良组疗效评估结果为稳定(SD)与进展(PD),共42例。比较两组血清HE4、TK1、DCLK1水平等临床资料,分析中晚期宫颈癌患者血清HE4、TK1、DCLK1水平与化疗效果的关系。结果 良好组临床分期为Ⅱ期比例、高分化比例、无淋巴结转移比例均高于不良组,肿瘤最大直径以及血清HE4、TK1、DCLK1水平均低于不良组,差异均有统计学意义(P<0.05);经logistic多因素分析显示,肿瘤的临床分期达到Ⅳ期、分化程度为中低分化、淋巴结转移以及血清HE4、TK1、DCLK1水平升高均为影响中晚期宫颈癌患者化疗效果的独立因素(P<0.05);经Spearman相关性分析显示,中晚期宫颈癌患者临床分期、淋巴结转移以及血清HE4、TK1、DCLK1水平与其化疗效果成负相关,分化程度与其化疗效果成正相关(P<0.05)。结论 中晚期宫颈癌患者临床分期越晚、分化程度越差、临床转移以及HE4、TK1、DCLK1水平越高,越不利于患者的化疗,上述指标对其预后均具有一定预测价值。