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CDR132L改善高血压合并高脂血症小鼠血管重构和功能
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作者 林俊敏 梁风金 +3 位作者 吴莹 许开祖 吴梅芳 林丽明 《中国动脉硬化杂志》 CAS 2024年第4期303-309,共7页
[目的]观察CDR132L(miR-132反义核苷酸)对高血压合并高脂血症小鼠血管重构和功能的影响,并探究其可能的作用机制。[方法]随机选择30只8周龄雄性C57BL/6小鼠,分为三组:对照组、模型组和CDR132L组,每组10只。对照组接受标准饲料喂养,模型... [目的]观察CDR132L(miR-132反义核苷酸)对高血压合并高脂血症小鼠血管重构和功能的影响,并探究其可能的作用机制。[方法]随机选择30只8周龄雄性C57BL/6小鼠,分为三组:对照组、模型组和CDR132L组,每组10只。对照组接受标准饲料喂养,模型组和CDR132L组给予N-硝基-L-精氨酸甲酯(L-NAME)和高脂食物联合喂养来诱导高血压和高脂血症。CDR132L组给予20 mg/kg CDR132L腹腔注射,1次/周,连续6周,对照组和模型组腹腔注射相同剂量的生理盐水溶液。尾套法测量小鼠尾动脉收缩压和舒张压,血脂、血糖检测由全自动生化分析仪完成,HE染色观察胸主动脉结构,血管环试验观察小鼠胸主动脉内皮依赖性舒张反应,定量基因扩增检测胸主动脉miR-132表达水平,Western blot检测胸主动脉Gab1和内皮型一氧化氮合酶(eNOS)蛋白表达水平。[结果]与对照组相比,模型组小鼠收缩压、舒张压、血清甘油三酯、血清总胆固醇和体质量均明显升高(P<0.05),胸主动脉内膜凹凸不平,血管壁厚度不均,中膜平滑肌细胞的排列呈现不规则状态,血管壁上存在大量脂肪积聚,胸主动脉内皮依赖性舒张反应减低(P<0.05),胸主动脉miR-132表达水平明显增加(P<0.05),Gab1和eNOS蛋白表达水平明显降低(P<0.05)。与模型组相比,CDR132L组小鼠收缩压、舒张压、血清甘油三酯、血清总胆固醇和体质量均无统计学差异(P>0.05),胸主动脉管腔内膜较完整光滑,血管壁厚度较均一,中膜平滑肌细胞的排列较为有序,血管壁仅存在少量脂肪积聚,胸主动脉内皮依赖性舒张反应增强(P<0.05),胸主动脉miR-132表达水平明显降低(P<0.05),Gab1和eNOS蛋白表达水平明显增加(P<0.05)。[结论]CDR132L能改善高血压合并高脂血症小鼠血管重构及内皮依赖性舒张功能,这一作用可能与其降低胸主动脉miR-132表达水平,进而上调胸主动脉Gab1和eNOS蛋白表达水平有关。 展开更多
关键词 cdr132L miR-132 高血压 高脂血症 血管重构 内皮舒张功能
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环状RNA CDR1-AS通过靶向miR-1277对肺癌细胞增殖、凋亡和免疫因子表达的影响
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作者 王頔 郭兆刚 +1 位作者 亢野 徐然 《中国免疫学杂志》 CAS CSCD 北大核心 2024年第5期939-944,共6页
目的:探究环状RNA(circRNA)小脑变性相关蛋白1反义转录物(CDR1-AS)对肺癌细胞增殖、凋亡和免疫因子表达的影响及可能机制。方法:分别以癌旁组织、支气管上皮细胞BEAS-2B为对照,qRT-PCR检测肺癌组织、肺癌细胞系(NCI-H23、H1299、NCI-H4... 目的:探究环状RNA(circRNA)小脑变性相关蛋白1反义转录物(CDR1-AS)对肺癌细胞增殖、凋亡和免疫因子表达的影响及可能机制。方法:分别以癌旁组织、支气管上皮细胞BEAS-2B为对照,qRT-PCR检测肺癌组织、肺癌细胞系(NCI-H23、H1299、NCI-H446)中CDR1-AS、miR-1277表达。以肺癌H1299细胞为研究对象,分别转染CDR1-AS小干扰RNA(si-CDR1-AS)、miR-1277模拟物或共转染si-CDR1-AS与miR-1277抑制剂后,CCK-8实验、克隆形成实验、流式细胞术分别检测细胞活性、克隆形成数、细胞凋亡率,ELISA检测细胞培养上清液中免疫因子(TNF-α、IFN-γ)表达。双荧光素酶报告基因实验验证CDR1-AS与miR-1277的调控关系。结果:与癌旁组织或BEAS-2B细胞比较,肺癌组织或细胞系(NCI-H23、H1299、NCIH446)中CDR1-AS表达升高(P<0.05),miR-1277表达降低(P<0.05)。沉默CDR1-AS或过表达miR-1277后,H1299细胞活性、克隆形成数及TNF-α分泌量降低(P<0.05),细胞凋亡率、IFN-γ分泌量升高(P<0.05)。CDR1-AS靶向结合miR-1277,且沉默CDR1-AS的H1299细胞中miR-1277表达升高(P<0.05)。下调miR-1277逆转沉默CDR1-AS对H1299细胞增殖、凋亡及免疫因子表达的影响。结论:CDR1-AS在肺癌组织和细胞系中表达上调,沉默其表达可通过靶向上调miR-1277抑制肺癌H1299细胞增殖及肿瘤细胞免疫逃逸,并诱导细胞凋亡。 展开更多
关键词 肺癌 cdr1-AS miR-1277 增殖 凋亡 免疫逃逸
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乳腺癌组织中环状RNA CDR1as的表达及临床意义
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作者 石碧霞 陶爽 徐溪 《中国肿瘤外科杂志》 CAS 2024年第1期54-60,共7页
目的探讨环状RNA CDR1as在乳腺癌组织中的表达以及CDR1as在乳腺癌细胞中的调控作用,为乳腺癌治疗提供新靶点。方法选取江苏大学附属武进医院2022年6月至2023年6月收治的45例三阴性乳腺癌患者,采用实时定量聚合酶链反应(RT-qPCR)检测乳... 目的探讨环状RNA CDR1as在乳腺癌组织中的表达以及CDR1as在乳腺癌细胞中的调控作用,为乳腺癌治疗提供新靶点。方法选取江苏大学附属武进医院2022年6月至2023年6月收治的45例三阴性乳腺癌患者,采用实时定量聚合酶链反应(RT-qPCR)检测乳腺癌组织及其癌旁正常乳腺组织中CDR1as表达情况。购入人正常乳腺上皮MCF-10A细胞及乳腺癌细胞系MDA-MB-231、MDA-MB-468细胞,采用RT-qPCR检测CDR1as在乳腺正常细胞与癌细胞中的表达情况。通过体外实验验证CDR1as的环状特性,将特异性针对CDR1as的siRNA及过表达载体转入MDA-MB-231细胞,Ad-CDR1as为高表达组,shCDR1s为低表达组,Ad-CON/Si-NC为阴性对照组。并采用蛋白质印迹分析(Western-blot)法检测细胞PCNA蛋白表达水平,MTT法、CCK-8法检测细胞增殖能力的改变,Transwell实验、划痕实验检测乳腺癌细胞迁移、侵袭能力。结果CDR1as在三阴性乳腺癌患者中的表达在不同肿瘤大小、淋巴结转移、组织学分级及临床分期上差异有统计学意义。乳腺癌患者癌组织中CDR1as的表达高于癌旁正常组织。乳腺癌细胞系MDA-MB-231中CDR1as表达量高于MCF-10A细胞。敲低/过表达CDR1as后,CDR1as沉默后乳腺癌细胞的细胞增殖量明显减少,而CDR1as过表达促进细胞增殖,差异有统计学意义。Western-blot结果显示Ad-CDR1as组PCNA表达高于Ad-CON组,Transwell结果显示Ad-CDR1as组细胞侵袭量大于Ad-CON组,而沉默CDR1as后细胞侵袭量显著降低;划痕试验显示,Ad-CDR1as组细胞迁移能力高于Ad-CON组,而沉默CDR1as后细胞迁移能力显著减弱,差异均有统计学意义。结论CDR1as在三阴性乳腺癌患者癌组织中高表达,且与临床病理特征相关。CDR1as在三阴性乳腺癌细胞中高表达,并促进三阴性乳腺癌细胞的增殖、侵袭和迁移,CDR1as可能是治疗三阴性乳腺癌的潜在靶点。 展开更多
关键词 环状RNA cdr1as 三阴性乳腺癌 增殖 侵袭 转移
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5-Aza-CdR通过Notch1通路对小鼠海马神经发生的影响
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作者 王报捷 苏丽晴 +4 位作者 张志勇 闫磊 王志广 包素雅 邵国 《中国比较医学杂志》 CAS 北大核心 2024年第1期34-39,共6页
目的研究5-Aza-CdR对Notch1通路影响及神经再生的影响,并通过小鼠主动回避行为实验来探讨5-Aza-CdR对小鼠学习记忆能力的影响。方法将60只6~8周龄SPF级ICR雄性小鼠分为两组,通过侧脑室注射(i.c.v)给一组小鼠注射5-Aza-CdR,另一组注射BS... 目的研究5-Aza-CdR对Notch1通路影响及神经再生的影响,并通过小鼠主动回避行为实验来探讨5-Aza-CdR对小鼠学习记忆能力的影响。方法将60只6~8周龄SPF级ICR雄性小鼠分为两组,通过侧脑室注射(i.c.v)给一组小鼠注射5-Aza-CdR,另一组注射BSA作为对照组。注射后24 h通过Real-time PCR和Western blot检测Notch1和HES1的mRNA和蛋白表达水平;通过激光共聚焦显微镜观察5-溴-2’-脱氧尿苷(BrdU)阳性细胞和海马DG中Notch1的表达;用MS-PCR检测Notch1甲基化变化;通过穿梭回避实验来评估小鼠的学习和记忆行为。结果注射5-Aza-CdR使海马Notch1通路活性增加并促进DG区神经细胞再生,降低Notch1启动子区甲基化水平,小鼠主动回避行为能力得到提升。结论5-Aza-CdR对小鼠主动回避行为的影响可能与Notch1通路影响海马神经再生有关。 展开更多
关键词 5-AZA-cdr 神经发生 NOTCH1 学习和记忆
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Risk Factors Asscociated with Hypokalemia during Postanesthesia Recovery and Its Impact on Outcomes in Gynecological Patients:A Propensity Score Matching Study
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作者 Bei-bei WANG Li HU +2 位作者 Xin-yue HU Dong HAN Jing WU 《Current Medical Science》 SCIE CAS 2024年第2期441-449,共9页
Objective:This study aimed to explore the risk factors and outcomes of hypokalemia during the recovery period from anesthesia in the gynecological population.Methods:This retrospective cohort study included 208 patien... Objective:This study aimed to explore the risk factors and outcomes of hypokalemia during the recovery period from anesthesia in the gynecological population.Methods:This retrospective cohort study included 208 patients who underwent gynecological surgery at our institution between January 2021 and March 2022.Data were collected for each patient,including demographics,disease status,surgical data,and clinical information.Preoperative bowel preparation,postoperative gastrointestinal function,and electrolyte levels were compared between the two groups using propensity score matching(PSM).Results:The incidence of hypokalemia(serum potassium level<3.5 mmol/L)during the recovery period from anesthesia was approximately 43.75%.After PSM,oral laxative use(96.4%vs.82.4%,P=0.005),the number of general enemas(P=0.014),and the rate of≥2 general enemas(92.9%vs.77.8%,P=0.004)were identified as risk factors for hypokalemia,which was accompanied by decreased PaCO2 and hypocalcemia.There were no significant differences in postoperative gastrointestinal outcomes,such as the time to first flatus or feces,the I-FEED score(a scoring system was created to evaluate impaired postoperative gastrointestinal function),or postoperative recovery outcomes,between the hypokalemia group and the normal serum potassium group.Conclusion:Hypokalemia during postanesthesia recovery period occurred in 43.75%of gynecological patients,which resulted from preoperative mechanical bowel preparation;however,it did not directly affect clinical outcomes,including postoperative gastrointestinal function,postoperative complications,and length of hospital stay. 展开更多
关键词 HYPOKALEMIA gynecological surgery postanesthesia recovery perioperative electrolyte disturbances postoperative recovery
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Activation of cerebral Ras-related C3 botulinum toxin substrate(Rac) 1 promotes post-ischemic stroke functional recovery in aged mice
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作者 Fan Bu Jia-Wei Min +5 位作者 Md Abdur Razzaque Ahmad El Hamamy Anthony Patrizz Li Qi Akihiko Urayama Jun Li 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第4期881-886,共6页
Brain functional impairment after stroke is common;however,the molecular mechanisms of post-stroke recovery remain unclear.It is well-recognized that age is the most important independent predictor of poor outcomes af... Brain functional impairment after stroke is common;however,the molecular mechanisms of post-stroke recovery remain unclear.It is well-recognized that age is the most important independent predictor of poor outcomes after stroke as older patients show poorer functional outcomes following stroke.Mounting evidence suggests that axonal regeneration and angiogenesis,the major forms of brain plasticity responsible for post-stroke recovery,diminished with advanced age.Previous studies suggest that Ras-related C3 botulinum toxin substrate(Rac)1 enhances stroke recovery as activation of Rac1 improved behavior recovery in a young mice stroke model.Here,we investigated the role of Rac1 signaling in long-term functional recovery and brain plasticity in an aged(male,18 to 22 months old C57BL/6J)brain after ischemic stroke.We found that as mice aged,Rac1 expression declined in the brain.Delayed overexpression of Rac1,using lentivirus encoding Rac1 injected day 1 after ischemic stroke,promoted cognitive(assessed using novel object recognition test)and sensorimotor(assessed using adhesive removal tests)recovery on days 14–28.This was accompanied by the increase of neurite and proliferative endothelial cells in the periinfarct zone assessed by immunostaining.In a reverse approach,pharmacological inhibition of Rac1 by intraperitoneal injection of Rac1 inhibitor NSC23766 for 14 successive days after ischemic stroke worsened the outcome with the reduction of neurite and proliferative endothelial cells.Furthermore,Rac1 inhibition reduced the activation of p21-activated kinase 1,the protein level of brain-derived neurotrophic factor,and increased the protein level of glial fibrillary acidic protein in the ischemic brain on day 28 after stroke.Our work provided insight into the mechanisms behind the diminished plasticity after cerebral ischemia in aged brains and identified Rac1 as a potential therapeutic target for improving functional recovery in the older adults after stroke. 展开更多
关键词 aging angiogenesis brain-derived neurotrophic factor(BDNF) cerebral ischemia cognitive recovery NEURITE PAK1 RAC1 sensorimotor recovery
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急性心肌梗死中环状RNA CDR1as位点筛选的研究
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作者 唐赛赛 孙秀梅 +3 位作者 王海凤 许梦婷 林浩 李文勇 《大医生》 2024年第2期46-49,共4页
目的 探讨PubMed筛选文献、千人基金组计划(1 000 genomes project)、Haploview软件联合应用于筛选与心肌梗死相关的单核苷酸多态性的文献的可行性。方法 使用PubMed网站检索并确定心血管疾病相关基因,1 000 genomes project网站检索中... 目的 探讨PubMed筛选文献、千人基金组计划(1 000 genomes project)、Haploview软件联合应用于筛选与心肌梗死相关的单核苷酸多态性的文献的可行性。方法 使用PubMed网站检索并确定心血管疾病相关基因,1 000 genomes project网站检索中国汉族人群CDR1as基因的单核苷酸多态性(SNP)数据。应用Haploview软件以最小等位基因频率(MAF)>0.05、r2> 0.8作为筛选标签SNPs指标。结果 CDR1as基因41个SNPs位点筛选出3个检测位点,分别为rs12688274、rs5907638、rs76284232。结论 通过PubMed、千人基因组计划和Haploview联合使用可实现标签SNPs筛选,值得进一步探究。 展开更多
关键词 环状RNA cdr1as 心肌梗死 位点筛选
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Does enhanced recovery after surgery programs improve clinical outcomes in liver cancer surgery?
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作者 Belinda Sánchez-Pérez JoséM Ramia 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第2期255-258,共4页
Enhanced recovery after surgery(ERAS)programs have been widely applied in liver surgery since the publication of the first ERAS guidelines in 2016 and the new recommendations in 2022.Liver surgery is usually performed... Enhanced recovery after surgery(ERAS)programs have been widely applied in liver surgery since the publication of the first ERAS guidelines in 2016 and the new recommendations in 2022.Liver surgery is usually performed in oncological patients(liver metastasis,hepatocellular carcinoma,cholangiocarcinoma,etc.),but the real impact of liver surgery ERAS programs in oncological outcomes is not clearly defined.Theoretical advantages of ERAS programs are:ERAS decreases postoperative complication rates and has been demonstrated a clear relationship between complications and oncological outcomes;a better and faster posto-perative recovery should let oncologic teams begin chemotherapeutic regimens on time;prehabilitation and nutrition actions before surgery should also improve the performance status of the patients receiving chemotherapy.So,ERAS could be another way to improve our oncological results.We will discuss the literature about liver surgery ERAS focusing on its oncological implications and future investigations projects. 展开更多
关键词 Enhanced recovery after surgery programs Liver surgery Key components Long-term oncological outcomes Enhanced recovery after surgery compliance
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广播电视工程中数字音频广播CDR技术的运用探索
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作者 刘思佳 《电声技术》 2024年第2期4-6,共3页
近年来,随着数字广播工作的持续推进,形成了完善的中国数字化广播(China Digital Radio,CDR)行业与技术标准,并被应用于广播电视工程。文章主要探索广播电视工程中数字音频广播CDR技术的运用,通过数字音频技术与广播电视工程的有机结合... 近年来,随着数字广播工作的持续推进,形成了完善的中国数字化广播(China Digital Radio,CDR)行业与技术标准,并被应用于广播电视工程。文章主要探索广播电视工程中数字音频广播CDR技术的运用,通过数字音频技术与广播电视工程的有机结合,推动广播电视质量的提升,满足观众多样化的需求,有助于新时代背景下广播电视工程的持续发展。 展开更多
关键词 广播电视工程 数字音频广播技术 中国数字化广播(cdr)
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Conditional Generative Adversarial Network Enabled Localized Stress Recovery of Periodic Composites
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作者 Chengkan Xu Xiaofei Wang +2 位作者 Yixuan Li Guannan Wang He Zhang 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第7期957-974,共18页
Structural damage in heterogeneousmaterials typically originates frommicrostructures where stress concentration occurs.Therefore,evaluating the magnitude and location of localized stress distributions within microstru... Structural damage in heterogeneousmaterials typically originates frommicrostructures where stress concentration occurs.Therefore,evaluating the magnitude and location of localized stress distributions within microstructures under external loading is crucial.Repeating unit cells(RUCs)are commonly used to represent microstructural details and homogenize the effective response of composites.This work develops a machine learning-based micromechanics tool to accurately predict the stress distributions of extracted RUCs.The locally exact homogenization theory efficiently generates the microstructural stresses of RUCs with a wide range of parameters,including volume fraction,fiber/matrix property ratio,fiber shapes,and loading direction.Subsequently,the conditional generative adversarial network(cGAN)is employed and constructed as a surrogate model to establish the statistical correlation between these parameters and the corresponding localized stresses.The stresses predicted by cGAN are validated against the remaining true data not used for training,showing good agreement.This work demonstrates that the cGAN-based micromechanics tool effectively captures the local responses of composite RUCs.It can be used for predicting potential crack initiations starting from microstructures and evaluating the effective behavior of periodic composites. 展开更多
关键词 Periodic composites localized stress recovery conditional generative adversarial network
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Is recovery enhancement after gastric cancer surgery really a safe approach for elderly patients?
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作者 Zi-Wei Li Xiao-Juan Luo +7 位作者 Fei Liu Xu-Rui Liu Xin-Peng Shu Yue Tong Quan Lv Xiao-Yu Liu Wei Zhang Dong Peng 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第4期1334-1343,共10页
BACKGROUND This study aimed to evaluate the safety of enhanced recovery after surgery(ERAS)in elderly patients with gastric cancer(GC).AIM To evaluate the safety of ERAS in elderly patients with GC.METHODS The PubMed,... BACKGROUND This study aimed to evaluate the safety of enhanced recovery after surgery(ERAS)in elderly patients with gastric cancer(GC).AIM To evaluate the safety of ERAS in elderly patients with GC.METHODS The PubMed,EMBASE,and Cochrane Library databases were used to search for eligible studies from inception to April 1,2023.The mean difference(MD),odds ratio(OR)and 95%confidence interval(95%CI)were pooled for analysis.The quality of the included studies was evaluated using the Newcastle-Ottawa Scale scores.We used Stata(V.16.0)software for data analysis.RESULTS This study consists of six studies involving 878 elderly patients.By analyzing the clinical outcomes,we found that the ERAS group had shorter postoperative hospital stays(MD=-0.51,I2=0.00%,95%CI=-0.72 to-0.30,P=0.00);earlier times to first flatus(defecation;MD=-0.30,I²=0.00%,95%CI=-0.55 to-0.06,P=0.02);less intestinal obstruction(OR=3.24,I2=0.00%,95%CI=1.07 to 9.78,P=0.04);less nausea and vomiting(OR=4.07,I2=0.00%,95%CI=1.29 to 12.84,P=0.02);and less gastric retention(OR=5.69,I2=2.46%,95%CI=2.00 to 16.20,P=0.00).Our results showed that the conventional group had a greater mortality rate than the ERAS group(OR=0.24,I2=0.00%,95%CI=0.07 to 0.84,P=0.03).However,there was no statistically significant difference in major complications between the ERAS group and the conventional group(OR=0.67,I2=0.00%,95%CI=0.38 to 1.18,P=0.16).CONCLUSION Compared to those with conventional recovery,elderly GC patients who received the ERAS protocol after surgery had a lower risk of mortality. 展开更多
关键词 Enhanced recovery after surgery Gastric cancer ELDERLY MORTALITY
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Observation of the Effectiveness of Rapid Recovery Nursing on Lung Cancer Surgery Patients and Its Impact on Sleep Quality
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作者 Weiwei Chen Dandan Liu 《Journal of Cancer Therapy》 2024年第2期29-32,共4页
Objective: To investigate the nursing effects of rapid recovery care measures on lung cancer surgery patients. Methods: 42 cases of lung cancer surgery patients were divided into control group and study group, with 21... Objective: To investigate the nursing effects of rapid recovery care measures on lung cancer surgery patients. Methods: 42 cases of lung cancer surgery patients were divided into control group and study group, with 21 cases in each group. The sleep quality and postoperative recovery indicators were compared between the two groups. Results: The study group showed better results than the control group in terms of PSQI scores, venting time, extubation time, time to getting out of bed, and duration of antibiotic use, with P Conclusion: Rapid recovery nursing has a positive impact on improving sleep quality and promoting postoperative recovery in lung cancer surgery patients. 展开更多
关键词 Rapid recovery Nursing Lung Cancer Surgery Sleep Quality
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Multidisciplinary approach toward enhanced recovery after surgery for total knee arthroplasty improves outcomes
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作者 Deb Sanjay Nag Amlan Swain +2 位作者 Seelora Sahu Ayaskant Sahoo Gunjan Wadhwa 《World Journal of Clinical Cases》 SCIE 2024年第9期1549-1554,共6页
Knee osteoarthritis is a degenerative disorder of the knee,which leads to joint pain,stiffness,and inactivity and significantly affects the quality of life.With an increased prevalence of obesity and greater life expe... Knee osteoarthritis is a degenerative disorder of the knee,which leads to joint pain,stiffness,and inactivity and significantly affects the quality of life.With an increased prevalence of obesity and greater life expectancies,total knee arthroplasty(TKA)is now one of the major arthroplasty surgeries performed for knee osteoarthritis.When enhanced recovery after surgery(ERAS)was introduced in TKA,clinical outcomes were enhanced and the economic burden on the healthcare system was reduced.ERAS is an evidence-based scientific protocol aimed at ameliorating the surgical stress response.ERAS aims to enhance the recovery phase,which encompasses multidisciplinary strategies at every step of perioperative care,including the rehabilitation phase.Implementation of ERAS in TKA aids in reducing the length of hospital stay,improving pain management,reducing perioperative complications,and enhancing patient satisfaction.Multidisciplinary collaboration,integrating the expertise of anesthesiologists,orthopedic surgeons,nursing personnel,and other healthcare professionals,is the cornerstone of ERAS in patients undergoing TKA. 展开更多
关键词 ARTHROPLASTY REPLACEMENT KNEE recovery of function ANESTHESIA Care NURSING
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CO_(2)flooding in shale oil reservoir with radial borehole fracturing for CO_(2)storage and enhanced oil recovery
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作者 Jia-Cheng Dai Tian-Yu Wang +3 位作者 Jin-Tao Weng Kang-Jian Tian Li-Ying Zhu Gen-Sheng Li 《Petroleum Science》 SCIE EI CAS CSCD 2024年第1期519-534,共16页
This study introduces a novel method integrating CO_(2)flooding with radial borehole fracturing for enhanced oil recovery and CO_(2)underground storage,a solution to the limited vertical stimulation reservoir volume i... This study introduces a novel method integrating CO_(2)flooding with radial borehole fracturing for enhanced oil recovery and CO_(2)underground storage,a solution to the limited vertical stimulation reservoir volume in horizontal well fracturing.A numerical model is established to investigate the production rate,reservoir pressure field,and CO_(2)saturation distribution corresponding to changing time of CO_(2)flooding with radial borehole fracturing.A sensitivity analysis on the influence of CO_(2)injection location,layer spacing,pressure difference,borehole number,and hydraulic fractures on oil production and CO_(2)storage is conducted.The CO_(2)flooding process is divided into four stages.Reductions in layer spacing will significantly improve oil production rate and gas storage capacity.However,serious gas channeling can occur when the spacing is lower than 20 m.Increasing the pressure difference between the producer and injector,the borehole number,the hydraulic fracture height,and the fracture width can also increase the oil production rate and gas storage rate.Sensitivity analysis shows that layer spacing and fracture height greatly influence gas storage and oil production.Research outcomes are expected to provide a theoretical basis for the efficient development of shale oil reservoirs in the vertical direction. 展开更多
关键词 Shale oil Radial borehole fracturing Embedded discrete fracture model Enhanced oil recovery Carbon storage
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Transplantation of fibrin-thrombin encapsulated human induced neural stem cells promotes functional recovery of spinal cord injury rats through modulation of the microenvironment
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作者 Sumei Liu Baoguo Liu +4 位作者 Qian Li Tianqi Zheng Bochao Liu Mo Li Zhiguo Chen 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第2期440-446,共7页
Recent studies have mostly focused on engraftment of cells at the lesioned spinal cord,with the expectation that differentiated neurons facilitate recovery.Only a few studies have attempted to use transplanted cells a... Recent studies have mostly focused on engraftment of cells at the lesioned spinal cord,with the expectation that differentiated neurons facilitate recovery.Only a few studies have attempted to use transplanted cells and/or biomaterials as major modulators of the spinal cord injury microenvironment.Here,we aimed to investigate the role of microenvironment modulation by cell graft on functional recovery after spinal cord injury.Induced neural stem cells reprogrammed from human peripheral blood mononuclear cells,and/or thrombin plus fibrinogen,were transplanted into the lesion site of an immunosuppressed rat spinal cord injury model.Basso,Beattie and Bresnahan score,electrophysiological function,and immunofluorescence/histological analyses showed that transplantation facilitates motor and electrophysiological function,reduces lesion volume,and promotes axonal neurofilament expression at the lesion core.Examination of the graft and niche components revealed that although the graft only survived for a relatively short period(up to 15 days),it still had a crucial impact on the microenvironment.Altogether,induced neural stem cells and human fibrin reduced the number of infiltrated immune cells,biased microglia towards a regenerative M2 phenotype,and changed the cytokine expression profile at the lesion site.Graft-induced changes of the microenvironment during the acute and subacute stages might have disrupted the inflammatory cascade chain reactions,which may have exerted a long-term impact on the functional recovery of spinal cord injury rats. 展开更多
关键词 biomaterial FIBRINOGEN functional recovery induced neural stem cell transplantation MICROENVIRONMENT MICROGLIA spinal cord injury THROMBIN
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Clinical study of enhanced recovery after surgery in laparoscopic appendectomy for acute appendici
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作者 Zhu-Lin Li Hua-Chong Ma +2 位作者 Yong Yang Jian-Jun Chen Zhen-Jun Wang 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第3期816-822,共7页
BACKGROUND Enhanced recovery after surgery(ERAS)protocol is a comprehensive manage-ment modality that promotes patient recovery,especially in the patients undergo-ing digestive tumor surgeries.However,it is less commo... BACKGROUND Enhanced recovery after surgery(ERAS)protocol is a comprehensive manage-ment modality that promotes patient recovery,especially in the patients undergo-ing digestive tumor surgeries.However,it is less commonly used in the appen-dectomy.AIM To study the application value of ERAS in laparoscopic surgery for acute appen-dicitis.METHODS A total of 120 patients who underwent laparoscopic appendectomy due to acute appendicitis were divided into experimental group and control group by random number table method,including 63 patients in the experimental group and 57 patients in the control group.Patients in the experimental group were managed with the ERAS protocol,and those in the control group were received the tra-ditional treatment.The exhaust time,the hospitalization duration,the hospita-lization expense and the pain score between the two groups were compared.RESULTS There was no significant difference in age,gender,body mass index and Sunshine Appendicitis Grading System score between the experimental group and the con-trol group(P>0.05).Compared to the control group,the patients in the expe-rimental group had earlier exhaust time,shorter hospitalization time,less hospi-talization cost and lower degree of pain sensation.The differences were statis-tically significant(P<0.01).CONCLUSION ERAS could significantly accelerate the recovery of patients who underwent la-paroscopic appendectomy for acute appendicitis,shorten the hospitalization time and reduce hospitalization costs.It is a safe and effective approach. 展开更多
关键词 Enhanced recovery after surgery APPENDICECTOMY LAPAROSCOPY Acute appendicitis TREATMENT
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Surgical intervention combined with weight-bearing walking training promotes recovery in patients with chronic spinal cord injury:a randomized controlled study
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作者 Hui Zhu James D.Guest +19 位作者 Sarah Dunlop Jia-Xin Xie Sujuan Gao Zhuojing Luo Joe E.Springer Wutian Wu Wise Young Wai Sang Poon Song Liu Hongkun Gao Tao Yu Dianchun Wang Libing Zhou Shengping Wu Lei Zhong Fang Niu Xiaomei Wang Yansheng Liu Kwok-Fai So Xiao-Ming Xu 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第12期2773-2784,共12页
For patients with chronic spinal cord injury,the co nventional treatment is rehabilitation and treatment of spinal cord injury complications such as urinary tract infection,pressure sores,osteoporosis,and deep vein th... For patients with chronic spinal cord injury,the co nventional treatment is rehabilitation and treatment of spinal cord injury complications such as urinary tract infection,pressure sores,osteoporosis,and deep vein thrombosis.Surgery is rarely perfo rmed on spinal co rd injury in the chronic phase,and few treatments have been proven effective in chronic spinal cord injury patients.Development of effective therapies fo r chronic spinal co rd injury patients is needed.We conducted a randomized controlled clinical trial in patients with chronic complete thoracic spinal co rd injury to compare intensive rehabilitation(weight-bearing walking training)alone with surgical intervention plus intensive rehabilitation.This clinical trial was registered at ClinicalTrials.gov(NCT02663310).The goal of surgical intervention was spinal cord detethering,restoration of cerebrospinal fluid flow,and elimination of residual spinal cord compression.We found that surgical intervention plus weight-bearing walking training was associated with a higher incidence of American Spinal Injury Association Impairment Scale improvement,reduced spasticity,and more rapid bowel and bladder functional recovery than weight-bearing walking training alone.Overall,the surgical procedures and intensive rehabilitation were safe.American Spinal Injury Association Impairment Scale improvement was more common in T7-T11 injuries than in T2-T6 injuries.Surgery combined with rehabilitation appears to have a role in treatment of chronic spinal cord injury patients. 展开更多
关键词 chronic spinal cord injury intensive rehabilitation locomotor training neurological recovery surgical intervention weightbearing walking training
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Problem identification and revitalization strategies for the recovery and reconstruction of traditional villages in the Ms 6.8 Luding Earthquake
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作者 HUANG Chao QIU Jian +3 位作者 LIU Chun JIANG Rui ZHAO Chuanrong ZHANG Yi 《Journal of Mountain Science》 SCIE CSCD 2024年第2期361-379,共19页
Post-disaster reconstruction is a topic of global concern,and traditional villages have special heritage attributes and need to face more requirements and obstacles in post-disaster reconstruction.This paper summarize... Post-disaster reconstruction is a topic of global concern,and traditional villages have special heritage attributes and need to face more requirements and obstacles in post-disaster reconstruction.This paper summarizes four concepts based on the research on post-disaster reconstruction both domestically and internationally,as well as the recovery and reconstruction of cultural heritage.Through a field survey of traditional villages in the Ms 6.8 Luding earthquake-stricken area,it is found that there are problems such as insufficient awareness of heritage value,misalignment of scientific reconstruction technology,and insufficient protection of reconstruction elements during the reconstruction process.Traditional villages face the risk of declining or even loss of heritage value.In order to effectively protect traditional villages and inherit the carrier of regional culture,four targeted reconstruction response strategies are proposed,i.e.,to"establish special planning for traditional village preservation","emphasize recovery of the authenticity of village heritage","ensure elements for village heritage recovery"and"promote the activation and utilization of village heritage",based on the problems discovered during the survey and the four concepts summarized in the research on post-disaster reconstruction of traditional villages.The research results hope to provide useful reference for ancient cultural areas affected by earthquakes on how to protect cultural heritage during the post-disaster reconstruction process. 展开更多
关键词 Seismic hazard Decision making Traditional village Cultural heritage protection Post-earthquake recovery and reconstruction Revitalization strategy
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Clinical observation of gastrointestinal function recovery in patients after hepatobiliary surgery
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作者 Hua-Jun Zeng Jing-Jing Liu Ying-Chun Yang 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第1期76-84,共9页
BACKGROUND The liver is an important metabolic and digestive organ in the human body,ca-pable of producing bile,clotting factors,and vitamins.AIM To investigate the recovery of gastrointestinal function in patients af... BACKGROUND The liver is an important metabolic and digestive organ in the human body,ca-pable of producing bile,clotting factors,and vitamins.AIM To investigate the recovery of gastrointestinal function in patients after hepato-biliary surgery and identify effective rehabilitation measures.METHODS A total of 200 patients who underwent hepatobiliary surgery in our hospital in 2022 were selected as the study subjects.They were divided into a control group and a study group based on the extent of the surgery,with 100 patients in each group.The control group received routine treatment,while the study group re-ceived targeted interventions,including early enteral nutrition support,drinking water before gas discharge,and large bowel enema,to promote postoperative gastrointestinal function recovery.The recovery of gastrointestinal function was compared between the two groups.RESULTS Compared with the control group,patients in the study group had better recovery of bowel sounds and less accumulation of fluids in the liver bed and gallbladder fossa(P<0.05).They also had shorter time to gas discharge and first meal(P<0.05),higher overall effective rate of gastrointestinal function recovery(P<0.05),and lower incidence of postoperative complications(P<0.05).CONCLUSION Targeted nursing interventions(early nutritional support,drinking water before gas discharge,and enema)can effectively promote gastrointestinal function recovery in patients undergoing hepatobiliary surgery and reduce the incidence of complications,which is worthy of promotion. 展开更多
关键词 Liver and gallbladder patients Gastrointestinal function Postoperative recovery
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Effect of cardiac rehabilitation care after coronary intervention on cardiac function recovery and negative mood in patients with myocardial infarction
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作者 Ming Yang Yuan-Tao Huang +1 位作者 Xi-Wen Hu Chun-Ling Wu 《World Journal of Clinical Cases》 SCIE 2024年第1期59-67,共9页
BACKGROUND Cardiovascular disease,particularly myocardial infarction(MI)profound impact on patients'quality of life and places a substantial burden on the healthcare and economy systems.Developments in medical tec... BACKGROUND Cardiovascular disease,particularly myocardial infarction(MI)profound impact on patients'quality of life and places a substantial burden on the healthcare and economy systems.Developments in medical technology have led to the emer-gence of coronary intervention as an essential method for treating MI.AIM To assess the effects of cardiac rehabilitation care on cardiac function recovery and negative emotions in MI after coronary intervention.METHODS This study included a total of 180 patients with MI during the period from June 2022 to July 2023.Selected patients were divided into two groups:An observation group,which receiving cardiac rehabilitation care;a control group,which re-ceiving conventional care.By comparing multiple observation indicators such as cardiac function indicators,blood pressure,exercise tolerance,occurrence of adverse cardiac events,and negative emotion scores between the two groups of patients.All the data were analyzed and compared between two groups.RESULTS There were 44 males and 46 females in the observation group with an average age of 36.26±9.88 yr;there were 43 males and 47 females in the control group,with an average age of 40.87±10.5 yr.After receiving the appropriate postoperative nursing measures,the results of the observation group showed significant improvement in several indicators compared with the control group.Indicators of cardiac function,such as left ventricular end-diastolic internal diameter and left ventricular ejection fraction were significantly better in the observation group than in the control group(P<0.05).Exercise endurance assessment showed that the 6-minute walking test distance was significantly increased in the patients of the observation group(P<0.01).In addition,the incidence of adverse cardiac events was significantly lower in the observation group,and negative mood scores were significantly reduced(P<0.05).CONCLUSION Cardiac rehabilitation care after coronary intervention has a significant positive impact on functional recovery.This emphasizes the importance of cardiac rehabilitation care to improve patient recovery. 展开更多
关键词 Myocardial infarction Coronary artery intervention Cardiac rehabilitation Cardiac function recovery Negative emotions
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