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Prevalence of Occupational Injury and Knowledge of Post-Exposure Prophylaxis Accessibility among Healthcare Workers in Mogadishu, Somalia
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作者 Yonis Abdullahi Ahmed Anshur Abdishakur Mohamud Sheik +10 位作者 Miski Abdullahi Roble Abdullahi Mohamed Yasin Abdullahi Ali Mohamed Fardowso Ali Mohamud Abdimalik Dahir Abdi Ikran Abdullahi Isse Warda Adan Ibrahim Mohamed Jimale Adan Ugbad Ahmed Daud Ahmed Aweis Abdullahi Mohamed Hassan Fujeyra 《Occupational Diseases and Environmental Medicine》 2024年第3期172-198,共27页
Introduction: Healthcare workers in Mogadishu, Somalia face significant occupational injury risks, particularly needle stick injuries, with 61.1% reporting incidents. This poses a serious threat to their health, leadi... Introduction: Healthcare workers in Mogadishu, Somalia face significant occupational injury risks, particularly needle stick injuries, with 61.1% reporting incidents. This poses a serious threat to their health, leading to infections such as hepatitis B, hepatitis C, and HIV. Despite the high prevalence of injuries, awareness of Post-Exposure Prophylaxis (PEP) accessibility is relatively high, with 84.0% of respondents aware of it. However, there are gaps in knowledge and implementation, as evidenced by variations in availability of PEP. Improving workplace safety measures, providing comprehensive training on injury prevention and PEP protocols, and ensuring consistent availability of PEP in healthcare facilities are crucial steps to safeguard the well-being of healthcare workers in Mogadishu, Somalia. Methods: A cross-sectional study was conducted among hospital workers in Mogadishu, Somalia, focusing on professionals from various healthcare facilities. The study targeted nurses, doctors, laboratory personnel, and pharmacists. Purposive sampling was employed, resulting in a sample size of 383 calculated using Fisher’s sample size formula. Data were collected using coded questionnaires entered into Microsoft Excel 2019 and analyzed with SPSS software to generate frequencies and proportions, presented through frequency tables and pie figures. Results: The study in Mogadishu, Somalia, examined the prevalence of occupational injuries and knowledge of Post-Exposure Prophylaxis (PEP) accessibility among healthcare workers. Findings indicate a high prevalence of injuries, with 61.1% reporting incidents, predominantly needle stick injuries (60.6%). Despite the majority seeking prompt medical attention (72.0%), work-related illnesses affected 53.2% of respondents, notably work-related stress (59.5%). While most received training on injury and illness prevention (68.9%), gaps exist in PEP awareness, with 16.0% unaware of it. Nonetheless, 84.0% were aware, predominantly through health facilities (52.0%). Availability of PEP was reported by 71.3% in healthcare facilities, with variations in shift availability. The majority reported guidelines for PEP use (55.7%). Efforts are needed to bolster PEP awareness and ensure consistent availability in healthcare facilities to safeguard worker health. Conclusion: High prevalence of occupational injuries among healthcare workers, with needle stick injuries being the most common (60.6%). Despite this, 84.0% of respondents were aware of Post-Exposure Prophylaxis (PEP), primarily learning about it from health facilities (52.0%). While 71.3% reported the availability of PEP in their facility, 28.7% noted its unavailability. These results emphasize the need for improved education and accessibility of PEP to mitigate occupational injury risks. 展开更多
关键词 Prevalence of Occupational Injury Post-Exposure Prophylaxis (PEP) AccESSIbILITY Healthcare Workers Needle Stick Injuries Infections (Hepatitis b Hepatitis c HIV) Awareness KNOWLEDGE Workplace Safety PEP Availability blood-borne Diseases Personal Protective Equipment (PPE) HIV PEP (Post-Exposure Prophylaxis)
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Eye on the Sky: A UAP Research and Field Study off New York’s Long Island Coast
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作者 John Joseph Tedesco Gerald Thomas Tedesco 《Open Journal of Applied Sciences》 2024年第8期2267-2295,共29页
A ten-month field research study was meticulously conducted at Robert Moses State Park (RMSP) on the south shore of Long Island, NY. The objective was to determine if aerial phenomena of an unknown nature exist over a... A ten-month field research study was meticulously conducted at Robert Moses State Park (RMSP) on the south shore of Long Island, NY. The objective was to determine if aerial phenomena of an unknown nature exist over a coastal location and to characterize their properties and behaviors. Primary and secondary field observation methods were utilized in this data-centric study. Forensic engineering principles and methodologies guided the study. The challenges set forward were object detection, observation, and characterization, where multispectral electro-optical devices and radar were employed due to limited visual acuity and intermittent presentation of the phenomena. The primary means of detection utilized a 3 cm X-band radar operating in two scan geometries, the X- and Y-axis. Multispectral electro-optical devices were utilized as a secondary means of detection and identification. Data was emphasized using HF and LF detectors and spectrum analyzers incorporating EM, ultrasonic, magnetic, and RF field transducers to record spectral data in these domains. Data collection concentrated on characterizing VIS, NIR, SWIR, LWIR, UVA, UVB, UVC, and the higher energy spectral range of ionizing radiation (alpha, beta, gamma, and X-ray) recorded by Geiger-Müller counters as well as special purpose semiconductor diode sensors. 展开更多
关键词 Unidentified Anomalous Phenomenon (UAP) Forensic Techno-Signatures Office of the Director of National Intelligence (ODNI) Multispectral Electro-Optical (MEO) Ultraviolet A Radiation (UVA) Ultraviolet b Radiation (UVb) Ultraviolet c Radiation (UVc) Visible (VIS) Near-Infrared (NIR) Short-Wave Infrared (SWIR) Long-Wave Infrared (LWIR) Low-Frequency (LF) High-Frequency (HF) Radio-Frequency (RF) Alpha beta Gamma Ultrasonic X-band Active Radar Kinematics Aerodynamics Luminous Spheroids Robert Moses State Park (RMSP)
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Bioactive chemical constituents from the marine-derived fungus Cladosporium sp.DLT-5
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作者 Luting DAI Qingyi XIE +6 位作者 Jiaocen GUO Qingyun MA Li YANG Jingzhe YUAN Haofu DAI Zhifang YU Youxing ZHAO 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2024年第3期905-914,共10页
A new isochromanone,cladosporinisochromanone(1),accompanied by 15 known compounds(2–16)were obtained from secondary metabolites produced by marine-derived fungus Cladosporium sp.DLT-5.NMR and HRESIMS spectra elucidat... A new isochromanone,cladosporinisochromanone(1),accompanied by 15 known compounds(2–16)were obtained from secondary metabolites produced by marine-derived fungus Cladosporium sp.DLT-5.NMR and HRESIMS spectra elucidation determined the planar structure of 1.Subsequent electronic circular dichroism(ECD)experiment assigned the absolute configuration of 1.Compounds 1,2,4–6,and 10 displayed different degrees of neuroprotective activities on human neuroblastoma cells SH-SY5Y.Five compounds(1,3–5,and 13)emerged resistance to protein tyrosine phosphatase 1B(PTP1B),further kinetic analysis and molecular docking study indicated that the most potent compound 13(IC50value of 10.74±0.61μmol/L)was found as a noncompetitive inhibitor for PTP1B.Surface plasmon resonance(SPR)and molecular docking studies also demonstrated the interaction between compound 12 and Niemann-Pick C1 Like 1(NPC1L1),which has been identified as significant therapeutic target for hypercholesteremia.In addition,compounds 3,6,and 14 showed attractive inhibitory activity against the phytopathogenic fungi:Colletotrichum capsici.Therefore,library of Cladosporium metabolites is enriched and new active uses of known compounds are explored. 展开更多
关键词 cladosporium sp. marine-derived fungus neuroprotective effects protein tyrosine phosphatase 1b(PTP1b) Niemann-Pick c1 Like 1(NPc1L1) antifungal activity
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Evolution of liver transplantation in the metabolic dysfunctionassociated steatotic liver disease era: Tracking impact through time
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作者 Karina Sato-Espinoza Perapa Chotiprasidhi +2 位作者 Estefanía Liza Zuly Placido-Damian Javier Diaz-Ferrer 《World Journal of Transplantation》 2024年第4期84-94,共11页
Liver transplantation(LT)for metabolic dysfunction-associated steatotic liver disease(MASLD)is increasing globally due to rising rates of obesity and metabolic syndrome,posing significant challenges.MASLD patients typ... Liver transplantation(LT)for metabolic dysfunction-associated steatotic liver disease(MASLD)is increasing globally due to rising rates of obesity and metabolic syndrome,posing significant challenges.MASLD patients typically present with advanced age,higher body mass index(BMI),and metabolic com-orbidities such as diabetes,hypertension,and dyslipidemia.Comprehensive pre-transplant evaluations are crucial for assessing surgical risks and preparing patients for transplantation.MASLD patients with higher BMI may experience longer operative times,potentially affecting intraoperative outcomes.In the months following LT,MASLD recipients face persistent challenges,including a higher incidence of metabolic syndrome and cardiovascular events compared to non-MASLD recipients.However,survival rates at 1-,3-,and 5-years post-LT do not markedly differ from other etiologies,indicating comparable surgical outcomes.Optimizing outcomes in MASLD patients undergoing LT demands a multidisciplinary approach from pre-transplant assessment to post-transplant care.Strategies must address metabolic comorbidities,manage cardiovascular health,and monitor steatosis recurrence,which can be exacerbated by obesity and diabetes.This approach aims to mitigate long-term graft complications and mortality risks,ultimately enhancing transplant success and patient well-being.Continued research is essential to refine these approaches and meet the evolving challenges posed by MASLD as a leading indication for LT worldwide. 展开更多
关键词 Liver transplantation Metabolic dysfunction-associated steatotic liver disease Alcohol liver disease Hepatitis c Hepatitis b Hepatocellular carcinoma
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Establishment of cell clones with different metastatic potential from the metastatic hepatocellular carcinoma cell line MHCC97 被引量:112
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作者 Yan Li Zhao-You Tang Sheng-Long Ye Yin-Kun Liu Jie Chen Qiong Xue Jun Chen Dong-Mei Gao Wei-Hua Bao Liver Cancer Institute and Zhongshan Hospital of Fudan University (Former Liver Cancer Institute of Shanghai Medical University),Shanghai 200032,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第5期630-636,共7页
AIM: To establish clone cells with different metastatic potential for the study of metastasis-related mechanisms. METHODS: Cloning procedure was performed on parental hepatocellular carcinoma (HCC) cell line MHCC97, a... AIM: To establish clone cells with different metastatic potential for the study of metastasis-related mechanisms. METHODS: Cloning procedure was performed on parental hepatocellular carcinoma (HCC) cell line MHCC97, and biological characteristics of the target clones selected by in vivo screening were studied. RESULTS: Two clones with high (MHCC97-H) and low (MHCC97-L) metastatic potential were isolated from the parent cell line. Compared with MHCC97-L, MHCC97-H had smaller cell size (average cell diameter 43 microm vs 50 microm) and faster in vitro and in vivo growth rate (tumor cell doubling time was 34.2h vs 60.0h). The main ranges of chromosomes were 55-58 in MHCC97-H and 57-62 in MHCC97-L. Boyden chamber in vitro invasion assay demonstrated that the number of penetrating cells through the artificial basement membrane was (37.5 +/- 11.0) cells/field for MHCC97-H vs (17.7 +/- 6.3)/field for MHCC97-L. The proportions of cells in G0-G1 phase, S phase, and G2-M phase for MHCC97-H/MHCC97-L were 0.56/0.65, 0.28/0.25 and 0.16/0.10, respectively, as measured by flow cytometry. The serum AFP levels in nude mice 5wk after orthotopic implantation of tumor tissue were (246 +/- 66) microg.L(-1) for MHCC97-H and (91 +/- 66) microg.L(-1) for MHCC97-L. The pulmonary metastatic rate was 100% (10/10) vs 40% (4/10). CONCLUSION: Two clones of the same genetic background but with different biological behaviors were established, which could be valuable models for investigation on HCC metastasis. 展开更多
关键词 ALbUMINS Animals carcinoma Hepatocellular cell Division chromosomes clone cells Flow cytometry Hepatitis b Hepatitis b Surface Antigens Hepatitis b virus purification Humans Keratin Liver Liver Neoplasms Experimental Male MIcE Mice Inbred bALb c Mice Nude Neoplasm Invasiveness Research Support Non-U.S. Gov't Tumor cells cultured Virus Integration ALPHA-FETOPROTEINS
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Hepatitis C virus in human B lymphocytes transformed by Epstein-Barr virus in vitro by in situ reverse transcriptase-polymerase chain reaction 被引量:11
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作者 Ji Lin Cheng Bao Ling Liu Yi Zhang Wen Bin Tong Zheng Yan Bai Fang Feng Institute of Hepatology,Peoples Hospital,Medical Center of Beijing University,Beijing 10(X)44,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第3期370-375,共6页
AIM: To study persistence and replication of hepatitis C virus (HCV) in patients' peripheral blood mononuclear cells (PBMC) cultured in vitro. METHODS: Epstein Barr virus (EBV) was used to transform the hepatitis ... AIM: To study persistence and replication of hepatitis C virus (HCV) in patients' peripheral blood mononuclear cells (PBMC) cultured in vitro. METHODS: Epstein Barr virus (EBV) was used to transform the hepatitis C virus from a HCV positive patient to permanent lymphoblastoid cell lines (LCL). Positive and negative HCV RNA strands of the cultured cells and growth media were detected by reverse transcriptase-polymerase chain reaction (RT-PCR) each month. Core and NS5 proteins of HCV were further tested using immunohistochemical SP method and in situ RT-PCR. RESULTS: HCV RNA positive strands were consistently detected the cultured cells for one year. The negative-strand RNA in LCL cells and the positive-strand RNA in supernatants were observed intermittently. Immunohistochemical results medicated expression of HCV NS3 and C proteins in LCL cytoplasm mostly. The positive signal of PCR product was dark blue and mainly localized to the LCL cytoplasm. The RT-PCR signal was eliminated by overnight RNase digestion but not DNase digestion. CONCLUSION: HCV may exist and remain functional in a cultured cell line for a long period. 展开更多
关键词 b-LYMPHOcYTES cells cultured Female HEPAcIVIRUS development purification Herpesvirus 4 Human Humans Immunohistochemistry In Vitro Polymerase chain Reaction RNA Viral Research Support Non-U.S. Gov't Reverse Transcriptase Polymerase chain Reaction Transformation Genetic Viral core Proteins Viral Nonstructural Proteins Virus Replication
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lncHAGLR通过抑制miR-26a激活NF-κB促进骨关节炎大鼠软骨细胞的炎症反应和细胞凋亡
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作者 孟晓源 乌尔坎·叶尔肯 +1 位作者 王志刚 马乐 《医学分子生物学杂志》 CAS 2024年第2期115-123,共9页
目的探讨长链非编码RNA(long non-coding RNA,lncRNA)HOXD反义生长相关长链非编码RNA(HOXD antisense growth-associated long non-coding RNA,lncHAGLR)对大鼠膝关节退行性软骨细胞C518细胞的炎症反应和凋亡的作用与潜在机制。方法采用... 目的探讨长链非编码RNA(long non-coding RNA,lncRNA)HOXD反义生长相关长链非编码RNA(HOXD antisense growth-associated long non-coding RNA,lncHAGLR)对大鼠膝关节退行性软骨细胞C518细胞的炎症反应和凋亡的作用与潜在机制。方法采用StarBase和荧光素酶报告基因法预测和确认ln-cHAGLR和微小RNA(microRNA,miR)-26a之间的相互作用。为研究lncHAGLR对miR-26a表达的调控作用,将C518细胞分为沉默lncHAGLR的小干扰RNA(small interfering RNA,siRNA)载体质粒(si-ln-cHAGLR)组、siRNA的阴性对照(negative control of siRNA,si-NC)组、miR-26a抑制剂阴性对照(nega-tive control of miR-26a inhibitor,inhibitor-NC)组、miR-26a的抑制剂(miR-26a-inhibitor)组。此外,为研究lncHAGLR是否通过调控miR-26a对C518细胞的炎症和凋亡具有调控作用,将C518细胞分为5组:Control组、白细胞介素(interleukin,IL)-1β组、IL-1β+si-NC组、IL-1β+si-lncHAGLR组和IL-1β+si-lncHA-GLR+miR-26a-inhibitor组。采用实时定量PCR(real-time quantitative PCR,qRT-PCR)分析lncHAGLR和miR-26a的水平。采用四甲基偶氮唑蓝(methyl thiazolyl tetrazolium,MTT)、乳酸脱氢酶(lactate dehydro-genase,LDH)和流式细胞术(flow cytometry,FCM)检测C518细胞的增殖、细胞毒性和凋亡情况。蛋白质印迹检测切割模式的半胱天冬酶3(CLEAVED-CASPASE3)、核因子κB P65(nuclear factor-κB P65,NF-κB P65)、磷酸化的NF-κB P65(phosphorylated NF-κB P65,P-NF-κB P65)的表达。ELISA法检测白细胞介素(interleukin,IL)-6和肿瘤坏死因子(tumor necrosis factor,TNF)-α的释放。结果lncHAGLR直接靶向miR-26a。在IL-1β组,lncHAGLR水平明显较Control组增高,miR-26a水平较Control组降低(P均<0.05)。此外,IL-1β+si-lncHAGLR组减轻了IL-1β诱导的C518细胞的炎症并抑制了凋亡,而且细胞的活力增加,LDH释放减少,CLEAVED-CASPASE3的表达被抑制,TNF-α和IL-6的分泌减少,且p-NF-κB P65表达减少(P均<0.05)。IL-1β+si-lncHAGLR+miR-26a-inhibitor组逆转了IL-1β+si-lncHAGLR组的结果(P均<0.05)。结论lncHAGLR通过抑制miR-26a激活NF-κB促进C518细胞的炎症反应和细胞凋亡,表明lncHAGLR可能是治疗骨关节炎的一个有价值的靶点。 展开更多
关键词 lncHAGLR 骨关节炎 c518细胞 细胞凋亡 miR-26a NF-κb P65
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Silencing of Jumonji domain-containing 1C inhibits the osteogenic differentiation of bone marrow mesenchymal stem cells via nuclear factor-κB signaling
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作者 Jing-Yi Li Ting-Ting Wang +2 位作者 Li Ma Yu Zhang Di Zhu 《World Journal of Stem Cells》 SCIE 2024年第2期151-162,共12页
BACKGROUND Osteoporosis is a common metabolic bone disorder induced by an imbalance between osteoclastic activity and osteogenic activity.During osteoporosis,bone mesenchymal stem cells(BMSCs)exhibit an increased abil... BACKGROUND Osteoporosis is a common metabolic bone disorder induced by an imbalance between osteoclastic activity and osteogenic activity.During osteoporosis,bone mesenchymal stem cells(BMSCs)exhibit an increased ability to differentiate into adipocytes and a decreased ability to differentiate into osteoblasts,resulting in bone loss.Jumonji domain-containing 1C(JMJD1C)has been demonstrated to suppress osteoclastogenesis.AIM To examine the effect of JMJD1C on the osteogenesis of BMSCs and the potential underlying mechanism.METHODS BMSCs were isolated from mouse bone marrow tissues.Oil Red O staining,Alizarin red staining,alkaline phosphatase staining and the expression of adipo-genic and osteogenic-associated genes were assessed to determine the differen-tiation of BMSCs.Bone marrow-derived macrophages(BMMs)were incubated with receptor activator of nuclear factor-kappaΒligand to induce osteoclast differentiation,and osteoclast differen-tiation was confirmed by tartrate-resistant acid phosphatase staining.Other related genes were measured via reverse transcription coupled to the quantitative polymerase chain reaction and western blotting.Enzyme-linked immunosorbent assays were used to measure the levels of inflammatory cytokines,including tumor necrosis factor alpha,interleukin-6 and interleukin-1 beta.RESULTS The osteogenic and adipogenic differentiation potential of BMSCs isolated from mouse bone marrow samples was evaluated.JMJD1C mRNA and protein expression was upregulated in BMSCs after osteoblast induction,while p-nuclear factor-κB(NF-κB)and inflammatory cytokines were not significantly altered.Knockdown of JMJD1C repressed osteogenic differentiation and enhanced NF-κB activation and inflammatory cytokine release in BMSCs.Moreover,JMJD1C expression decreased during BMM osteoclast differentiation.CONCLUSION The JMJD1C/NF-κB signaling pathway is potentially involved in BMSC osteogenic differentiation and may play vital roles in the pathogenesis of osteoporosis. 展开更多
关键词 OSTEOPOROSIS Mesenchymal stem cells OSTEOGENESIS Jumonji domain-containing 1c Nuclear factor-κb
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服务补救、顾客满意度与信任、顾客忠诚度——基于B2C电子商务数据分析 被引量:1
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作者 杨茂保 代红梅 周小超 《时代经贸》 2024年第3期134-140,共7页
在B2C电子商务市场中,顾客忠诚度是影响B2C电子商务企业绩效和生存发展的关键因素之一。本文为探讨B2C电子商务中服务补救质量、顾客满意度、顾客信任和顾客忠诚度的关系,使用471份B2C网购消费者的调查数据,实证检验了顾客信任和顾客满... 在B2C电子商务市场中,顾客忠诚度是影响B2C电子商务企业绩效和生存发展的关键因素之一。本文为探讨B2C电子商务中服务补救质量、顾客满意度、顾客信任和顾客忠诚度的关系,使用471份B2C网购消费者的调查数据,实证检验了顾客信任和顾客满意度在服务补救质量对顾客忠诚度影响过程中的链式中介作用,研究结果发现:服务补救质量对顾客忠诚度有直接的正向影响,同时验证了顾客满意度和顾客信任的链式中介作用。因此,当B2C电子商务企业出现服务失误时,应及时通过有效的服务补救措施提升顾客满意度和顾客信任,进而保持和提高顾客忠诚度。 展开更多
关键词 服务补救质量 顾客信任 顾客满意度 顾客忠诚度 b2c
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联合添加微量Sc、Zr元素对B4C/7075Al复合材料力学性能和腐蚀行为的影响
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作者 韩慧敏 姜龙涛 +2 位作者 晁振龙 韩秉卓 王春雨 《材料保护》 CAS CSCD 2024年第4期39-46,55,共9页
限制高强度B4C/Al复合材料工程应用的关键为腐蚀问题,添加微量合金元素是提高其耐蚀性的有效措施。采用压力浸渗法制备了B4C/7075和添加微量Sc、Zr元素的B4C/7075-0.15Sc-0.35Zr复合材料,利用扫描电镜、透射电镜、弯曲性能测试、拉伸性... 限制高强度B4C/Al复合材料工程应用的关键为腐蚀问题,添加微量合金元素是提高其耐蚀性的有效措施。采用压力浸渗法制备了B4C/7075和添加微量Sc、Zr元素的B4C/7075-0.15Sc-0.35Zr复合材料,利用扫描电镜、透射电镜、弯曲性能测试、拉伸性能测试、中性盐雾试验和电化学测试对比研究了联合添加Sc和Zr元素对B4C/7075Al复合材料的显微组织、力学性能和腐蚀行为的影响。结果表明:添加Sc和Zr元素后,复合材料的抗弯曲强度和抗拉强度升高,腐蚀速率降低,腐蚀电流密度(Jcorr)下降,耐蚀性增强,这是因为添加Sc和Zr元素后,复合材料的晶界析出相细小且不连续分布,无析出带(PFZ)消失。 展开更多
关键词 b4c/7075复合材料 Sc ZR 力学性能 腐蚀行为 无析出带
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Standford B型主动脉夹层腔内治疗围手术期超敏C反应蛋白等相关指标应用意义的临床研究
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作者 吴跃武 胡斌 +1 位作者 付琴 过小冬 《中国当代医药》 CAS 2024年第10期62-65,70,共5页
目的探讨超敏C反应蛋白(hs-CRP)、D-二聚体(D-D)、降钙素原(PCT)对Standford B型主动脉夹层(TBAD)患者胸主动脉腔内修复术预后的影响。方法选取2017年4月至2022年3月抚州市第一人民医院行胸主动脉腔内修复术(TEVAR)的80例TBAD患者作为... 目的探讨超敏C反应蛋白(hs-CRP)、D-二聚体(D-D)、降钙素原(PCT)对Standford B型主动脉夹层(TBAD)患者胸主动脉腔内修复术预后的影响。方法选取2017年4月至2022年3月抚州市第一人民医院行胸主动脉腔内修复术(TEVAR)的80例TBAD患者作为研究对象,于术前1 d和术后7 d检测hs-CRP、D-D、PCT水平。根据患者预后分为预后良好组和预后不良组,比较两组患者术前1 d和术后7 d的血清hs-CRP、D-D、PCT水平,分析血清hs-CRP、D-D、PCT水平与患者预后的关联性。结果80例患者中预后良好(预后良好组)63例(78.75%),预后不良(预后不良组)17例(21.25%)。两组患者术后7 d血清hs-CRP、D-D、PCT水平高于本组术前1 d,差异有统计学意义(P<0.05);预后良好组患者术前1 d和术后7 d的血清hs-CRP、D-D、PCT水平低于预后不良组,差异有统计学意义(P<0.05);logistic回归模型分析结果显示,术前1 d血清hs-CRP(β=0.617,OR=1.854,95%CI=1.217~2.696)、D-D(β=0.639,OR=1.895,95%CI=1.841~2.635)、PCT(β=0.554,OR=1.741,95%CI=1.547~3.052)和术后7 d hs-CRP(β=0.892,OR=2.440,95%CI=1.251~4.761)、D-D(β=0.797,OR=2.219,95%CI=1.669~3.141)、PCT(β=0.604,OR=1.829,95%CI=1.058~2.969)水平是接受TEVAR治疗的TBAD患者预后的影响因素,差异有统计学意义(P<0.05)。结论监测围手术期血清hs-CRP、D-D、PCT水平对接受TEVAR治疗的TBAD患者预后判断具有一定的参考价值。 展开更多
关键词 Standford b 主动脉夹层 腔内治疗 围手术期 超敏c反应蛋白 D-二聚体 降钙素原
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CLEC1B、DKK1、DRD4在原发性肝癌病变组织中的表达及临床意义探究
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作者 代云龙 黄纪伟 《医学分子生物学杂志》 CAS 2024年第3期224-230,共7页
目的分析C型凝集素结构域家族1成员B(C-type lectin domain family 1 member B,CLEC1B)、分泌型蛋白Dickkopf 1(DKK1)、多巴胺受体D4(dopamine receptor D4,DRD4)在原发性肝癌(primary hepatic cancer,PHC)患者病变组织中的表达及临床... 目的分析C型凝集素结构域家族1成员B(C-type lectin domain family 1 member B,CLEC1B)、分泌型蛋白Dickkopf 1(DKK1)、多巴胺受体D4(dopamine receptor D4,DRD4)在原发性肝癌(primary hepatic cancer,PHC)患者病变组织中的表达及临床意义。方法回顾性选取2022年1月~2023年1月在四川大学华西医院接受肝癌切除术且经术后病理证实为PHC的138例患者,取其癌组织与癌旁组织石蜡病理标本,分析其CLEC1B、DKK1、DRD4表达情况及和临床病理特征关联性,Pearson法分析CLEC1B、DKK1、DRD4的相关性。结果肝癌组织中CLEC1B、DRD4表达水平均低于癌旁肝组织,肝癌组织中的DKK1蛋白表达较癌旁肝组织更高(P<0.05),且3者均主要分布于细胞浆;CLEC1B低表达、DKK1高表达、DRD4低表达分别97例(70.29%)、91例(65.94%)、78例(56.52%),PHC患者的CLEC1B低表达与术前AFP水平、血管侵犯、远处转移、肿瘤出血等密切相关(P<0.05),DKK1高表达与术前AFP水平、BCLC Kinki分期、肿瘤数目、肿瘤大小密切相关(P<0.05),DRD4低表达与术前AFP水平、肿瘤数目、肿瘤大小、卫星结节、血管侵犯密切相关(P<0.05);Pearson相关分析显示,PHC患者CLEC1B、DRD4与DKK1表达水平呈负相关(r=-0.809、r=-0.774,P<0.001),CLEC1B与DRD4表达水平呈正相关(r=0.748,P<0.001)。结论CLEC1B、DRD4在PHC患者癌变组织中呈低表达,而DKK1呈高表达,且与临床病理参数有关,CLEC1B、DKK1、DRD4可能参与PHC发生发展,有一定检测意义。 展开更多
关键词 c型凝集素结构域家族1成员b 分泌型蛋白Dickkopf 1 多巴胺受体D4 原发性肝癌
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感音神经性耳聋患者外周血miR-34c、miR-29b的表达及意义
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作者 李瀛 罗颜 +1 位作者 李文全 罗蔚锋 《实用医学杂志》 CAS 北大核心 2024年第15期2105-2109,共5页
目的探讨感音神经性耳聋(SNHL)患者外周血miR-34c、miR-29b的表达情况及临床意义。方法筛选2020年6月至2023年6月我院收治的神经性耳聋患者140例为观察组,同期选取体检健康者40例为对照组。根据听力损伤情况将SNHL患者分为轻度耳聋组63... 目的探讨感音神经性耳聋(SNHL)患者外周血miR-34c、miR-29b的表达情况及临床意义。方法筛选2020年6月至2023年6月我院收治的神经性耳聋患者140例为观察组,同期选取体检健康者40例为对照组。根据听力损伤情况将SNHL患者分为轻度耳聋组63例,中度耳聋组42例,重度耳聋组35例。采用qRT-PCR检测miR-34c、miR-29b的表达,并检测VEGF、氧化应激水平(TAC、SOD、MDA)、NO和Cx26;采用Pearson检验进行相关性分析,采用logistic回归分析SNHL病情严重程度的独立危险因素,采用ROC曲线评估miR-34c、miR-29b对SNHL患者病情严重程度的预测价值。结果4组NO、TAC、SOD、Cx26水平比较,重度耳聋组<中度耳聋组<轻度耳聋组<对照组(P<0.05);VEGF和MDA水平比较,重度耳聋组>中度耳聋组>轻度耳聋组>对照组(P<0.05)。4组miR-34c mRNA和miR-29b mRNA表达水平比较,重度耳聋组>中度耳聋组>轻度耳聋组>对照组(P<0.05)。Pearson相关分析显示,SNHL患者外周血miR-34c、miR-29b与VEGF、MDA呈正相关,与NO、TAC、SOD、Cx26呈负相关(P<0.05)。多因素logistic回归分析显示,VEGF、MDA、NO、Cx26、TAC、SOD、miR-34c、miR-29b是影响SNHL病情严重程度的独立因素。结论miR-34c、miR-29b在SNHL患者中过表达,可作为预测评估SNHL患者病情严重程度的血清标志物。 展开更多
关键词 miR-34c miR-29b 感音神经性耳聋 相关性
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BMI指数与老年CHF患者血浆Cys-C、NT-proBNP相关性及评测预后的可行性研究
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作者 王姣 郎月 耿直 《齐齐哈尔医学院学报》 2024年第15期1423-1426,共4页
目的分析体质量指数(Body mass index,BMI)与老年慢性心力衰竭(Chronic heart failure,CHF)患者血浆胱抑素C(cystatinC,Cys-C)、N末端B型利钠肽原(N-terminal pro-B-type natriuretic peptide,NT-proBNP)水平相关性,并分析血浆Cys-C、NT... 目的分析体质量指数(Body mass index,BMI)与老年慢性心力衰竭(Chronic heart failure,CHF)患者血浆胱抑素C(cystatinC,Cys-C)、N末端B型利钠肽原(N-terminal pro-B-type natriuretic peptide,NT-proBNP)水平相关性,并分析血浆Cys-C、NT-proBNP评估老年CHF患者预后价值。方法选择2021年7月—2022年10月在本院接受治疗的192例老年慢性心力衰竭(CHF)患者作为研究对象,按照BMI指数分为肥胖组(49例)、超重组(68例)和正常组(75例)三组。对比各亚组患者血浆Cys-C、NT-proBNP水平差异,采用Pearson相关性分析的方式探究老年CHF患者BMI指数与血浆Cys-C、NT-proBNP相关性,对入组患者实施12个月随访,将患者按照预后情况区分为死亡组和存活组,对比两亚组患者血浆Cys-C、NT-proBNP水平差异并评估预后评估价值。结果肥胖组患者血浆Cys-C、NT-proBNP水平高于超重组,超重组患者血浆Cys-C、NT-proBNP水平高于正常组,差异具有统计学意义(P<0.05);入组老年CHF患者的BMI指数与其血浆Cys-C、NT-proBN水平均呈现明显的正相关性(r=0.7104,P<0.0001)(r=0.6603,P<0.0001);随访12个月显示,死亡组患者的血浆Cys-C、NT-proBNP水平显著高于存活组患者,差异具有统计学意义(P<0.05);血浆Cys-C、NT-proBNP对老年CHF预后评估曲线下面积(area under curv,AUC)为0.6930(P=0.0009)、0.7982(P<0.0001)。结论老年CHF患者随BMI指数升高,血浆Cys-C、NT-proBNP水平逐渐升高,血浆Cys-C、NT-proBNP对老年CHF临床结局具有一定的预测价值,进一步研究有推广应用于老年CHF预后评估潜力。 展开更多
关键词 体质量指数 慢性心力衰竭 胱抑素c N末端b型利钠肽原 相关性 预后评估
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封臣算法:针对B2C电商物流配送中心的储位优化算法
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作者 刘威 林海 罗嫚玲 《计算机应用与软件》 北大核心 2024年第5期203-211,303,共10页
针对B2C电商配送中心人到货拣选系统中拣选作业时耗过高的问题,在考虑一品多位操作和商品关联度的基础上,提出新的储位优化算法——封臣算法。基于商品的关联度,商品间的关系首先被抽象成图结构。封臣算法将图中的节点视为单块领土,通... 针对B2C电商配送中心人到货拣选系统中拣选作业时耗过高的问题,在考虑一品多位操作和商品关联度的基础上,提出新的储位优化算法——封臣算法。基于商品的关联度,商品间的关系首先被抽象成图结构。封臣算法将图中的节点视为单块领土,通过入侵流程确定各领土的封臣与领主,并基于封臣与领主,每个节点被分到至多两个分区中;调整节点个数至所需节点数;以社区为单位,按照贪心分配策略完成储位分配。实验结果表明,在商品种类数增多的情况下,封臣算法生成的储位分配方案相较随机策略优化程度有所提升;迭代400轮下该算法优于遗传算法、模拟退火算法、人工鱼群算法、粒子群算法3.00%、28.76%、22.03%、11.42%,且运行时间仅占到其0.04%~3.85%。 展开更多
关键词 b2c电商 储位分配 封臣算法 社区划分
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Homer1b/c“支架”在CTNND2-/-自闭症模型鼠中的作用研究
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作者 张翰鸿 王岩 +4 位作者 吕明其 聂应 蔡锦雯 王楚萱 李英博 《重庆医科大学学报》 CAS CSCD 北大核心 2024年第4期409-414,共6页
目的:观察CTNND2-/-自闭症模型鼠前额叶皮层中支架蛋白荷马1b/c(homer protein homolog 1b and 1c,Homer1b/c)与三磷酸肌醇受体(inositol 1,4,5-trisphosphate receptor,IP3R)、代谢型谷氨酸受体5(metabotropic glutamate receptor 5,mG... 目的:观察CTNND2-/-自闭症模型鼠前额叶皮层中支架蛋白荷马1b/c(homer protein homolog 1b and 1c,Homer1b/c)与三磷酸肌醇受体(inositol 1,4,5-trisphosphate receptor,IP3R)、代谢型谷氨酸受体5(metabotropic glutamate receptor 5,mGluR5)和香克3蛋白(sh3 and multiple ankyrin repeat domains 3,Shank3)蛋白相关复合体的变化;前额叶皮层中常见氨基酸的变化,发现自闭症模型鼠中可能参与疾病发生的关键靶点。方法:蛋白免疫印迹法(Western blot,WB)法检测CTNND2-/-自闭症模型鼠前额叶皮层中支架蛋白Homer1b/c、突触后密度蛋白-95(postsynaptic density protein 95,PSD-95)、突触素蛋白(synaptophysin,SYP)、囊泡谷氨酸转运体1(vesicular glutamate transporter 1,vGluT1)的表达的变化;通过免疫荧光(immunofluorescence,IF)观察Homer1b/c与IP3R、mGluR5和Shank3蛋白的表达与共定位;免疫共沉淀(co-immunoprecipitation,CO-IP)技术分别观察Homer1b/c与IP3R、mGluR5或Shank3结合的变化;使用液相色谱(liquid chromatography,LC)观察前额叶皮层中常见氨基酸的变化。结果:与对照组相比,CTNND2-/-模型鼠前额叶皮层中Homer1b/c(P=0.003)、PSD-95(P=0.003)以及SYP蛋白(P=0.046)的表达均明显降低;同时,Homer1b/c与IP3R、mGluR5、Shank3蛋白相互之间结合减少;前额叶皮层中常见的兴奋性神经递质谷氨酸(glutamate,Glu)和抑制性神经递质γ-氨基丁酸(γ-aminobutyric acid,GABA)的表达无明显变化(P=0.366,P=0.355),组氨酸(histidine,His)(P=0.036),酪氨酸(tyrosine,Tyr)(P=0.030)表达则明显增高。结论:CTNND2-/-自闭症模型鼠中Homer1b/c蛋白低表达,同时Homer1b/c与IP3R、Shank3、mGluR5蛋白复合物的形成减少,并推测低表达的Homer1b/c可能是导致自闭症神经元突触异常发育的关键靶点。 展开更多
关键词 Homer1b/c 自闭症谱系障碍 cTNND2基因敲除鼠
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血清CysC、MDA、BNP及PCT水平在老年心力衰竭伴肺部感染病人预后评估中的应用
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作者 王晓利 张江涛 姜浩 《中西医结合心脑血管病杂志》 2024年第14期2611-2615,共5页
目的:探讨血清胱抑素C(CysC)、丙二醛(MDA)、B型利钠肽(BNP)及降钙素原(PCT)在老年心力衰竭伴肺部感染病人预后评估中的应用。方法:回顾性分析2017年4月—2020年4月我院收治的86例老年心力衰竭伴肺部感染病人的临床资料,根据纽约心脏病... 目的:探讨血清胱抑素C(CysC)、丙二醛(MDA)、B型利钠肽(BNP)及降钙素原(PCT)在老年心力衰竭伴肺部感染病人预后评估中的应用。方法:回顾性分析2017年4月—2020年4月我院收治的86例老年心力衰竭伴肺部感染病人的临床资料,根据纽约心脏病协会(NYHA)心功能分级将病人分为Ⅱ级组(33例)、Ⅲ级组(34例)、Ⅳ级组(19例);根据病人预后情况分为生存组(68例)、死亡组(18例);另选取75例单纯心力衰竭老年病人作为对照组。比较不同组别病人血清CysC、MDA、BNP及PCT水平差异,采用Pearson法分析相关指标与老年心力衰竭伴肺部感染病人28 d预后生存情况的关系。结果:观察组血清CysC、MDA、BNP、PCT水平高于对照组,差异均有统计学意义(P<0.001)。心功能分级越高血清CysC、MDA、BNP、PCT水平越高,Ⅳ级组血清CysC、MDA、BNP、PCT水平均高于Ⅱ级组、Ⅲ级组,Ⅲ级组血清CysC、MDA、BNP、PCT水平均高于Ⅱ级组,差异均有统计学意义(P<0.05)。生存组血清CysC、MDA、BNP、PCT水平均低于死亡组,差异均有统计学意义(P<0.001)。Pearson相关性分析结果显示,老年心力衰竭伴肺部感染病人预后情况与CysC、MDA、BNP及PCT水平呈正相关(P<0.001)。结论:血清CysC、MDA、BNP及PCT水平与老年心力衰竭伴肺部感染病人预后关系密切,早期检测可为其诊治提供临床指导,早期采取干预措施可改善病人预后。 展开更多
关键词 心力衰竭 肺部感染 老年人 胱抑素c 丙二醛 b型利钠肽 降钙素原 预后
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氮含量对Ti-B-C-N薄膜微观结构和性能的影响
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作者 陈向阳 张瑾 +1 位作者 马胜利 胡海霞 《机械工程材料》 CAS CSCD 北大核心 2024年第5期62-66,共5页
采用反应磁控溅射法在高速钢基体上制备氮原子分数分别为10.8%,15.6%,28.1%,36.4%的Ti-B-C-N薄膜,研究了氮含量对薄膜微观结构、硬度和摩擦磨损性能的影响。结果表明:Ti-B-C-N薄膜均由α-Fe和Ti(C,N)纳米晶组成,具有Ti(C,N)纳米晶镶嵌... 采用反应磁控溅射法在高速钢基体上制备氮原子分数分别为10.8%,15.6%,28.1%,36.4%的Ti-B-C-N薄膜,研究了氮含量对薄膜微观结构、硬度和摩擦磨损性能的影响。结果表明:Ti-B-C-N薄膜均由α-Fe和Ti(C,N)纳米晶组成,具有Ti(C,N)纳米晶镶嵌在非晶基体相中的纳米复合结构;随着氮含量增加,非晶相含量增加,Ti(C,N)纳米晶的含量和晶粒尺寸减小;随着氮含量增加,Ti-B-C-N薄膜的显微硬度增大,摩擦因数和磨损率均减小,表面磨痕变浅,磨损机制由剥落和微观犁削转变为微观抛光。 展开更多
关键词 反应磁控溅射 Ti-b-c-N薄膜 纳米复合结构 硬度 摩擦磨损性能
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Risk Factors, Clinical Features, Baseline Alanine Aminotransferase and CD4+ Count of Children with HIV Co-Infection with Hepatitis B and C at a Tertiary Hospital in Southwest Nigeria 被引量:1
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作者 M. O. Durowaye S. K. Ernest I. A. Ojuawo 《International Journal of Clinical Medicine》 2016年第4期280-291,共12页
Background: Human immunodeficiency virus and hepatitis B and C viruses are endemic in sub- Saharan African countries including Nigeria. Researchers have studied the burden of co-infection of HIV with hepatitis B and h... Background: Human immunodeficiency virus and hepatitis B and C viruses are endemic in sub- Saharan African countries including Nigeria. Researchers have studied the burden of co-infection of HIV with hepatitis B and hepatitis C but the risk factors and clinical presentation have not been much addressed especially in children. Methodology: This was a prospective cross sectional study that determined the prevalence, risk factors, clinical features, baseline CD4<sup>+</sup> count, CD4<sup>+</sup> percentage, and alanine aminotransferase (ALT) of newly diagnosed, HAART na?ve HIV co-infection among children who were managed at a Tertiary Hospital in Ilorin, Nigeria. Result: Of the 60 HIV- infected children recruited, 11.7% had HIV co-infection with HBV or HCV. Children with co-infec- tions (mean age 8.43 ± 2.37 years) were significantly older than their HIV mono-infected counterparts (mean age 5.25 ± 3.96 years) (p = 0.011). There was no significant difference between HIV monoinfection and HIV co-infection with respect to gender (p = 0.758), ethnicity (p = 0.707), religion of parents (p = 0.436), family type (p = 0.184), social class (p = 0.535), previous transfusion (p = 0.053), scarification (p = 0.612), female genital mutilation (p = 0.778), and sharing of clippers (p = 0.806). The mean BMI, immunological staging (p = 0.535), baseline ALT (p = 0.940), and mean baseline CD4<sup>+</sup> count (p = 0.928) were comparable. However, the body mass index of HIV co-infec- ted children decreased with age up till age 10 years. Conclusion: There were no risk factors, nor clinical features predictive of co-infection identified in this study. Co-infection did not negatively impact baseline, CD4<sup>+</sup> count and ALT. 展开更多
关键词 cO-INFEcTION Hepatitis b Hepatitis c Human Immunodeficiency Virus Acquired Immunodeficiency Syndrome HIV HbV HcV Alanine Aminotransferase ALT Highly Active Antiretroviral Therapy HAART Monoinfection cD4+ Risk Factors for co-Infection Transmission Hepatitis b Surface Antigen HbVsAg
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NT-proBNP、D-D、CRP检测在中老年急性脑梗死患者中的临床诊断价值分析 被引量:1
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作者 张伟 《中国实用医药》 2024年第10期81-84,共4页
目的 分析氨基末端脑钠肽前体(NT-proBNP)、D-二聚体(D-D)、C反应蛋白(CRP)检测对中老年急性脑梗死(ACI)患者的诊断价值。方法 选取中老年急性脑梗死患者52例为观察组[根据病灶直径不同分为大面积梗死组(>5 cm)10例、中面积梗死组(≤... 目的 分析氨基末端脑钠肽前体(NT-proBNP)、D-二聚体(D-D)、C反应蛋白(CRP)检测对中老年急性脑梗死(ACI)患者的诊断价值。方法 选取中老年急性脑梗死患者52例为观察组[根据病灶直径不同分为大面积梗死组(>5 cm)10例、中面积梗死组(≤5 cm,>3 cm)16例、小面积梗死组(≤3 cm,>1.5 cm)26例],另选取健康体检者50例为对照组。观察组及对照组均进行D-D、CRP、NT-proBNP水平检测。比较观察组及对照组的CRP、D-D、NT-proBNP水平,观察组不同脑梗死面积患者的CRP、D-D、NT-proBNP水平。结果观察组CRP、D-D、NT-proBNP水平均高于对照组,差异具有统计学意义(P<0.05)。观察组中,大面积梗死组的NT-proBNP、D-D、CRP水平分别为(3351.70±940.97)pg/ml、(898.43±323.19)ng/ml、(41.79±11.08)mg/L,中面积梗死组的NT-proBNP、D-D、CRP水平分别为(1338.06±345.23)pg/ml、(573.88±312.67)ng/ml、(32.05±11.77)mg/L,小面积梗死组的NT-proBNP、D-D、CRP水平分别为(447.00±195.72)pg/ml、(334.15±229.81)ng/ml、(18.03±10.14)mg/L。大面积梗死组患者的NT-proBNP、D-D、CRP水平均高于中面积梗死组及小面积梗死组,中面积梗死组患者的NT-proBNP、D-D、CRP水平均高于小面积梗死组,差异具有统计学意义(P<0.05)。结论 D-D、CRP、NT-proBNP在诊断中老年急性脑梗死患者中存在较高的应用价值。 展开更多
关键词 D-二聚体 c反应蛋白 氨基末端脑钠肽前体 急性脑梗死 诊断价值
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