期刊文献+
共找到198篇文章
< 1 2 10 >
每页显示 20 50 100
Innovative cross-intervention:copper ions and metabolic pathways in cancer therapy
1
作者 Lili Niu Wei Su +3 位作者 Lixia Ju Jun Xiang Zhou Yang Bing Yao 《Cancer Biology & Medicine》 2026年第1期30-41,共12页
Copper ions are essential for cellular function but can induce cytotoxic effects when dysregulated.This review explores the multifaceted role of copper in cancer metabolism with a focus on the novel concept of cupropt... Copper ions are essential for cellular function but can induce cytotoxic effects when dysregulated.This review explores the multifaceted role of copper in cancer metabolism with a focus on the novel concept of cuproptosis,a regulated form of cell death triggered by copper accumulation.The mechanisms underlying copper homeostasis are detailed,including dietary absorption,systemic distribution,and intracellular utilization.Key transporters,such as copper transporter 1(CTR1)and ATPase copper transporting alpha/b(ATP7A/B),are highlighted.Cancer cells often exhibit elevated copper levels,supporting proliferation and metastasis through pro-tumorigenic pathways.Recent studies have shown that disrupting copper homeostasis can induce cuproptosis,which is characterized by the aggregation of lipoylated mitochondrial proteins and disruption of iron-sulfur cluster biogenesis.Advances in copper-based nanotechnology have enabled targeted delivery of copper to tumors,enhancing therapeutic efficacy through synergistic effects with reactive oxygen species(ROS)generation and immunomodulation.However,the hypoxic tumor microenvironment poses significant challenges by upregulating copper-sequestering proteins and downregulating key cuproptosis mediators.Future directions include integrating multi-omics approaches to identify novel therapeutic targets and developing combination therapies to overcome hypoxia-induced resistance.This review provides a comprehensive overview of copper metabolism in cancer,emphasizing the potential of cuproptosis induction as a powerful strategy for oncologic intervention. 展开更多
关键词 Copper homeostasis cuproptosis tumor metabolism nanotherapy hypoxia resistance
暂未订购
Corrosion in Mg-alloy biomedical implants-the strategies to reduce the impact of the corrosion inflammatory reaction and microbial activity 被引量:2
2
作者 Soumya Saha Widya Lestari +5 位作者 Caroline Dini Murni Nazira Sarian Hendra Hermawan Valentim A.R.Barão Cortino Sukotjo Christos Takoudis 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2022年第12期3306-3326,共21页
The most common complication of orthopedic surgery is implant failure, which can result in catastrophic injury and a significant financial burden for patients. Implant failure can be caused by a variety of factors, th... The most common complication of orthopedic surgery is implant failure, which can result in catastrophic injury and a significant financial burden for patients. Implant failure can be caused by a variety of factors, the most common of which are peri–implant infection(or implantrelated infection), excessive inflammatory response which caused pain and aseptic loosening. Orthopedic surgeons now have a variety of options for treating these issues, including revision surgery, which has demonstrated to be effective. If excessive inflammatory reaction caused by the corrosion and peri–implant infection can be avoided, it will be of enormous social benefits. This review will provide a summary of corrosion and the inflammation reactions due to the corrosion and antimicrobial properties of Mg alloy-based implants covering both in vitro and in vivo studies. The strategies on hindering/overcoming the excessive inflammatory response and enhancing the antimicrobial activity are discussed in this review. 展开更多
关键词 Mg-alloy implants review Corrosion and inflammation Microbial infection
在线阅读 下载PDF
2-Methylnaphthalene as a risk factor for urinary tract infections in patients with early rheumatoid arthritis
3
作者 Hao-Hui Wang Liang Zou +4 位作者 Hao Xu Lu-Xu Yin Si-Bin Zhen Hai-Yan Ma Yan Zhao 《Biomedical Engineering Communications》 2025年第1期34-41,共8页
Background:Studies have shown that individuals who receive early treatment for rheumatoid arthritis(RA)are more likely to approach life positively,avoiding joint damage and the need for joint replacement surgery.The d... Background:Studies have shown that individuals who receive early treatment for rheumatoid arthritis(RA)are more likely to approach life positively,avoiding joint damage and the need for joint replacement surgery.The diagnosis of early rheumatoid arthritis(ERA)is crucial for effective treatment and prognosis of patients.Urine,as a diagnostic medium,offers the advantages of non-invasive diagnosis.Urinary metabolites can serve as biomarkers for diagnosis,prognosis,and risk prediction,improving specificity and accuracy.Methods:We recruited 37 ERA patients with a history of less than 3 months and a score of 6,26 osteoarthritis(OA)patients,and 30 healthy controls(HC).Urine samples were collected for 16S rRNA sequencing,and untargeted liquid chromatography-mass spectrometry(LC-MS)was used to detect metabolites.Bioinformatics approaches were employed to identify pathogenic metabolites as specific risk factors for ERA precisely.Results:2-methylnaphthalene was identified as a biomarker for ERA in urine.Prevotella,a major part of the urinary microbiome in ERA patients,exhibited a positive correlation with 2-methylnaphthalene.Notably,there were significant variations in urine metabolites among patients with ERA,OA,and HC.2-Methylnaphthalene was found to be significantly enriched in ERA.Besides,inflammatory factors were elevated in ERA patients.The research further demonstrated a positive correlation between rheumatoid factor(RF),erythrocyte sedimentation rate(ESR),and C-reactive protein(CRP)and the metabolite 2-methylnaphthalene.Conclusion:The urine metabolite 2-methylnaphthalene can be a risk factor for early urinary tract infections and may contribute to accurately screening early-risk metabolites in ERA. 展开更多
关键词 2-METHYLNAPHTHALENE PREVOTELLA rheumatoid arthritis rheumatoid factors urinary tract infection
暂未订购
Study design and rationale of the TXL-CAP trial:a randomized,double-blind,placebo-controlled,multicenter clinical trial assessing the effect of Tongxinluo capsules on the stability of coronary atherosclerotic plaques
4
作者 Mei NI Yun TI +6 位作者 Yan QI Meng ZHANG Dayue Darrel Duan Chen YAO Zhen-Hua JIA Yun ZHANG Pei-Li BU 《Journal of Geriatric Cardiology》 2025年第7期615-624,共10页
Recent clinical trials have demonstrated a protective effect in using traditional Chinese medicine Tongxinluo(TXL)capsule to treat atherosclerosis.However,clinical evidence of the effects of TXL treatment on coronary ... Recent clinical trials have demonstrated a protective effect in using traditional Chinese medicine Tongxinluo(TXL)capsule to treat atherosclerosis.However,clinical evidence of the effects of TXL treatment on coronary plaque vulnerability is unavailable.In response,we developed this study to investigate the hypothesis that on the basis of statin therapy,treatment with TXL capsule may stabilize coronary lesions in patients with acute coronary syndrome(ACS).The TXL-CAP study was an investigator-initiated,randomized,double-blind clinical trial conducted across 18 medical centers in China.Patients with ACS aging from 18 to 80 years old who had a non-intervened coronary target lesion with a fibrous cap thickness(FCT)<100μm and lipid arc>90°as defined by optical coherence tomography(OCT)were recruited.A total of 220 patients who met the selection criteria but did not meet the exclusion criteria will be finally recruited and randomized to receive treatment with TXL(n=110)or placebo(n=110)for a duration of 12 months.The primary endpoint was the difference in the minimum FCT of the coronary target lesion between TXL and placebo groups at the end of the 12-month follow-up.Secondary endpoints included:(1)changes of the maximum lipid arc and length of the target plaque,and the percentage of lipid,fibrous,and calcified plaques at the end of the12-month period;(2)the incidence of composite cardiovascular events and coronary revascularization within the 12 months;(3)changes in the grade and scores of the angina pectoris as assessed using the Canadian Cardiovascular Society(CCS)grading system and Seattle angina questionnaire(SAQ)score,respectively;and(4)changes in hs-CRP serum levels.The results of the TXLCAP trial will provide additional clinical data for revealing whether TXL capsules stabilizes coronary vulnerable plaques in Chinese ACS patients. 展开更多
关键词 coronary atherosclerotic plaques acute coronary syndrome Tongxinluo capsules optical coherence tomography clinical trials acute coronary syndrome acs statin therapytreatment stabilize coronary lesions
暂未订购
微电场影响血管内皮细胞血管新生行为的分子机制 被引量:3
5
作者 白怀 Forrester JV Zhao M 《中国动脉硬化杂志》 CAS CSCD 北大核心 2011年第3期249-249,共1页
背景和目的治疗性血管新生在缺血性疾病包括对动脉粥样硬化的干预中具有实际意义,我们近年研究发现,生理性微电场可介导血管内皮细胞血管新生样反应,但其机制尚待深入研究。本研究拟探讨微电场影响内皮细胞血管新生相关基因的表达及其... 背景和目的治疗性血管新生在缺血性疾病包括对动脉粥样硬化的干预中具有实际意义,我们近年研究发现,生理性微电场可介导血管内皮细胞血管新生样反应,但其机制尚待深入研究。本研究拟探讨微电场影响内皮细胞血管新生相关基因的表达及其机制。方法应用微电场对血管内皮细胞进行刺激;利用显微成像系统及共聚焦显微镜研究内皮细胞的形态与结构;用ELISA法和/或RT-PCR测定内皮细胞血管新生相关基因的表达;用特异抑制剂研究血管内皮生长因子/血管内皮生长因子受体(VEGF/VEGFR)介导的细胞信号通路在内皮细胞血管新生及其基因表达中的作用。结果生理性微电场可刺激血管内皮细胞变长和定向排列,以及细胞定向移动。这些细胞行为在微血管内皮细胞(HMEC-1)和大血管内皮细胞(HUVEC)的反应存在明显差异。微电场刺激血管内皮细胞使VEGF165、VEGF121和白细胞介素8(IL-8)表达上调,而对其他血管新生相关分子如碱性成纤维细胞生长因子(bFGF)、转化生长因子β(TGF-β)以及内皮型一氧化氮合酶(eNOS)等mRNA表达影响不明显。VEGFR抑制剂作用于血管内皮细胞后,抑制微电场对内皮细胞VEGF和IL-8的表达及内皮细胞定向排列、定向移动等血管新生行为。结论微电场可能作为一种重要的信号,在机体血管内皮细胞血管新生中产生重要影响,其机制可能与激活VEGF/VEGFR及其胞内信号通路,继而通过血管新生相关分子的活化有关。 展开更多
关键词 治疗性血管新生 动脉粥样硬化 血管内皮细胞 微电场 血管新生 血管内皮生长因子/血管内皮生
暂未订购
"To-and-fro" waveform in the diagnosis of arterial pseudoaneurysms 被引量:5
6
作者 Mustafa Z Mahmoud Mohammed Al-Saadi +4 位作者 Abdulwahab Abuderman Khalid S Alzimami Mohammed Alkhorayef Babikir Almagli Abdelmoneim Sulieman 《World Journal of Radiology》 CAS 2015年第5期89-99,共11页
Medical ultrasound imaging with Doppler plays an essential role in the diagnosis of vascular disease. This study intended to review the clinical use of "to-and-fro" waveform at duplex Doppler ultrasonography... Medical ultrasound imaging with Doppler plays an essential role in the diagnosis of vascular disease. This study intended to review the clinical use of "to-and-fro" waveform at duplex Doppler ultrasonography(DDU) in the diagnosis of pseudoaneurysms in the arterial vessels of upper and lower extremities, abdominal aorta, carotid and vertebral arteries as well as to review our personal experiences of "to-and-fro" waveform at DDU also. After receiving institutional review board approval, an inclusive literature review was carried out in order to review the scientific foundation of "toand-fro" waveform at DDU and its clinical use in the diagnosis of pseudoaneurysms in various arterial vessels. Articles published in the English language between 2000 and 2013 were evaluated in this review study. Pseudoaneurysms in arterial vessels of the upper and lower extremities, abdominal aorta, carotid and vertebral arteries characterized by an extraluminal pattern of blood flow, which shows variable echogenicity, interval complexity, and "to-and-fro" flow pattern on color Doppler ultrasonography. In these arterial vessels, Duplex ultrasonography can demonstrate the degree of clotting, pseudoaneurysm communication, the blood flow patterns and velocities. Spectral Doppler applied to pseudoaneurysms lumen revealed systolic and diastolic turbulent blood flow with traditional "toand-fro" waveform in the communicating channel. Accurate diagnosis of pseudoaneurysm by spectral Doppler is based on the documentation of the "to-andfro" waveform. The size of pseudoaneurysm determines the appropriate treatment approach as surgical or conservative. 展开更多
关键词 PSEUDOANEURYSM To-and-fro WAVEFORM ULTRASONOGRAPHY PERCUTANEOUS THROMBIN injection YinYang sign
暂未订购
Effect of survivin siRNA on biological behaviour of breast cancer MCF7cells 被引量:4
7
作者 Hao Wang Yi-Feng Ye 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2015年第3期225-228,共4页
Objective:To investigate the expression of survivin in breast cancer cell lines and explore the effect of survivin siRNA on biology behavior of breast cancer cells.Methods:Western blot was performed to detect the expr... Objective:To investigate the expression of survivin in breast cancer cell lines and explore the effect of survivin siRNA on biology behavior of breast cancer cells.Methods:Western blot was performed to detect the expression of survivin in breast cancer cell lines.Eukaryotic expression vector pIRES2-EGFP-Survivin siRNA was constructed and transtected in MCF7 cells with liposome,the efficiency of survivin siRNA was measured by Western blot and RTPCR.Cell proliferation and apoptosis were detected by CCK8 and cell flow respectively.Cell migration and invasion was measured by transwell assay.Results:Survivin was highly expressed in MCF-7.Green fluorescence was found in MCF-7 cells tranfected with survivin siRNA and control siRNA by inverted fluorescence microscopy,the protein and mRNA level of survivin was significantly lower in cells tranfected with survivin siRNA compared with control group.Compared with control group,interfering the expression of survivin by siRNA significantly decreased the proliferation,migration and invasion of MCF-7 cells,the percentage of apoptosis cells was greatly promoted.Conclusions:Interfering the expression of Survivin can inhibit the cell proliferation,migration and invasion,and promot apoptosis in MCF-7. 展开更多
关键词 BREAST cancer SURVIVIN Apoptosis MIGRATION INVASION
暂未订购
Omics Approaches for Exploring Pneumoconiosis:A Review 被引量:10
8
作者 LUO Ya QI Xian Mei +2 位作者 PANG Jun Ling WANG Jing WANG Chen 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2021年第1期71-82,共12页
Pneumoconiosis,a fatal lung disease caused by dust inhalation and deposition,is one of the leading occupational diseases worldwide[1].The dust is primarily inorganic particles,such as silica particles,coal dust,and as... Pneumoconiosis,a fatal lung disease caused by dust inhalation and deposition,is one of the leading occupational diseases worldwide[1].The dust is primarily inorganic particles,such as silica particles,coal dust,and asbestos fibers.If the diameter of dust is less than 5μm,it is defined as‘respirable dust’that can easily reach the distal airways and alveoli[2]. 展开更多
关键词 LUNG DISEASES OCCUPATIONAL
暂未订购
Apoptosis in skeletal muscle and its relevance to atrophy 被引量:12
9
作者 Esther E Dupont-Versteegden 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第46期7463-7466,共4页
Apoptosis is necessary for maintaining the integrity of proliferative tissues, such as epithelial cells of the gastrointestinal system. The role of apoptosis in post mitotic tissues, such as skeletal muscle, is less w... Apoptosis is necessary for maintaining the integrity of proliferative tissues, such as epithelial cells of the gastrointestinal system. The role of apoptosis in post mitotic tissues, such as skeletal muscle, is less well defined. Apoptosis during muscle atrophy occurs in both myonuclei and other muscle cell types. Apoptosis of myonuclei likely contributes to the loss of muscle mass, but the mechanisms underlying this process are largely unknown. Caspase-dependent as well as -independent pathways have been implicated and the mode by which atrophy is induced likely determines the apoptotic mechanisms that are utilized. It remains to be determined whether a decrease in apoptosis will alleviate atrophy and distinct research strategies may be required for different causes of skeletal muscle loss. 展开更多
关键词 Skeletal muscle APOPTOSIS Disuse atrophy AGING
暂未订购
Pseudocyesis, delusional pregnancy, and psychosis: The birth of a delusion 被引量:3
10
作者 Mary V Seeman 《World Journal of Clinical Cases》 SCIE 2014年第8期338-344,共7页
Both pseudocyesis and delusional pregnancy are said to be rare syndromes, but are reported frequently in developing countries. A distinction has been made between the two syndromes, but the line of demarcation is blur... Both pseudocyesis and delusional pregnancy are said to be rare syndromes, but are reported frequently in developing countries. A distinction has been made between the two syndromes, but the line of demarcation is blurred. The aim of this paper is to review recent cases of pseudocyesis/delusional pregnancy in order to learn more about biopsychosocial antecedents. The recent world literature(2000-2014) on this subject(women only) was reviewed, making no distinction between pseudocyesis and delusional pregnancy. Eighty case histories were found, most of them originating in developing countries. Fifty patients had been given a diagnosis of psychosis, although criteria for making the diagnosis were not always clear. The psychological antecedents included ambivalence about pregnancy, relationship issues, and loss. Very frequently, pseudocyesis/delusional pregnancy occurred when a married couple was infertile and living in a pronatalist society. The infertility was attributed to the woman, which resulted in her experiencing substantial distress and discrimination. When antipsychotic medication was used to treat psychotic symptoms in these women, it led to high prolactin levels and apparent manifestations of pregnancy, such as amenorrhea and galactorrhea, thus reinforcing a false conviction of pregnancy. Developing the erroneous belief that one is pregnant is an understandable process, making the delusion of pregnancy a useful template against which to study the evolution of other, less explicable delusions. 展开更多
关键词 Pseudocyesis Delusional PREGNANCY INFERTILITY PROLACTIN DELUSION
暂未订购
Ankylosing spondylitis: A state of the art factual backbone 被引量:12
11
作者 Mohammad Ghasemi-rad Hosam Attaya +9 位作者 Emal Lesha Andrea Vegh Tooraj Maleki-Miandoab Emad Nosair Nariman Sepehrvand Ali Davarian Hamid Rajebi Abdolghader Pakniat Seyed Amirhossein Fazeli Afshin Mohammadi 《World Journal of Radiology》 CAS 2015年第9期236-252,共17页
Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, ca... Ankylosing spondylitis(AS) is a chronic inflammatory disease that affects 1% of the general population. As one of the most severe types of spondyloarthropathy, AS affects the spinal vertebrae and sacroiliac joints, causing debilitating pain and loss of mobility. The goal of this review is to provide an overview of AS, from the pathophysiological changes that occur as the disease progresses, to genetic factors that are involved with its onset. Considering the high prevalence in the population, and the debilitating life changes that occur as a result of the disease, a strong emphasis is placed on the diagnostic imaging methods that are used to detect this condition, as well as several treatment methods that could improve the health of individuals diagnosed with AS. 展开更多
关键词 ANKYLOSING SPONDYLITIS MAGNETIC RESONANCE IMAGING
暂未订购
Hepatocellular carcinoma and focal nodular hyperplasia of the liver in a glycogen storage disease patient 被引量:4
12
作者 Yoshihiro Mikuriya Akihiko Oshita +4 位作者 Hirotaka Tashiro Hironobu Amano Tsuyoshi Kobayashi Kouji Arihiro Hideki Ohdan 《World Journal of Hepatology》 CAS 2012年第6期191-195,共5页
Glycogen storage disease type Ia (GSD-Ia; also called von Gierke disease) is an autosomal recessive disorder of carbohydrate metabolism caused by glucose-6-phosphatase deficiency. There have been many reports describi... Glycogen storage disease type Ia (GSD-Ia; also called von Gierke disease) is an autosomal recessive disorder of carbohydrate metabolism caused by glucose-6-phosphatase deficiency. There have been many reports describing hepatic tumors in GSD patients; however, most of these reports were of hepatocellular adenomas, whereas there are only few reports describing focal nodular hyperplasia (FNH) or hepatocellular carcinoma (HCC). We report a case with GSD-Ia who had undergone a partial resection of the liver for FNH at 18 years of age and in whom moderately differentiated HCC had developed. Preoperative imaging studies, including ultrasonography, dynamic computer tomography (CT) and magnetic resonance imaging, revealed benign and malignant features. In particular, fluorodeoxyglucose-positron emission tomography (FDG-PET)/CT revealed the atypical findings that FDG accumulated at high levels in the non-tumorous hepatic parenchyma and low levels in the tumor. Right hemihepatectomy was performed. During the perioperative period, high-dose glucose and sodium bicarbonate were administered to control metabolic acidosis. He had multiple recurrences of HCC at 10 mo after surgery and was followed-up with transcatheter arterial chemoembolization. The tumor was already highly advanced when it was found by chance; therefore, a careful follow-up should be mandatory for GSD-I patients as they are at a high risk for HCC, similar to hepatitis patients. 展开更多
关键词 GLYCOGEN storage disease type Ia Hepato-cellular carcinoma FOCAL NODULAR HYPERPLASIA HEPATECTOMY METACHRONOUS
暂未订购
Cutaneous Hypersensitivity as an Indicator of Visceral Inflammation via C-Nociceptor Axon Bifurcation 被引量:10
13
作者 Yehong Fang Shu Han +4 位作者 Xiaoxue Li Yikuan Xie Bing Zhu Xinyan Gao Chao Ma 《Neuroscience Bulletin》 SCIE CAS CSCD 2021年第1期45-54,共10页
Pain on the body surface can accompany disorders in the deep tissue or internal organs. However, the anatomical and physiological mechanisms are obscure.Here, we provided direct evidence of axon bifurcation in primary... Pain on the body surface can accompany disorders in the deep tissue or internal organs. However, the anatomical and physiological mechanisms are obscure.Here, we provided direct evidence of axon bifurcation in primary C-nociceptive neurons that innervate both the skin and a visceral organ. Double-labeled dorsal root ganglion(DRG) neurons and Evans blue extravasation were observed in 3 types of chemically-induced visceral inflammation(colitis, urocystitis, and acute gastritis) rat models.In the colitis model, mechanical hypersensitivity and spontaneous activity were recorded in vivo from doublelabeled C-nociceptive neurons in S1 or L6 DRGs. These neurons showed significantly enhanced responses to both somatic stimulation and colorectal distension. Our findings suggest that the branching of C-nociceptor axons contribute to cutaneous hypersensitivity in visceral inflammation. Cutaneous hypersensitivity on certain locations of the body surface might serve as an indicator of pathological conditions in the corresponding visceral organ. 展开更多
关键词 Visceral inflammation Cutaneous hypersensitivity Axon bifurcation C-nociceptor
原文传递
Beneficial effect of berberine on atherosclerosis based on attenuating vascular inflammation and calcification 被引量:2
14
作者 Xiao-ming LI Qing-zhu WANG Lei GUO 《中国药理学与毒理学杂志》 CAS CSCD 北大核心 2017年第10期993-994,共2页
OBJECTIVE To investigate the beneficial effect of berberine(BBR)on atherosclerosisin Apo^(-/-) E mice and explore the underlying mechanisms based on attenuating vascular inflammation and modulating calcification in hu... OBJECTIVE To investigate the beneficial effect of berberine(BBR)on atherosclerosisin Apo^(-/-) E mice and explore the underlying mechanisms based on attenuating vascular inflammation and modulating calcification in human umbilical vein endothelial cells(HUVECs) and smooth muscle cells(SMCs).METHODS 48 Apo-/-E mice,at 6-8 weeks old,were randomly allocated into 4 groups:normal,model,bbr and atorvastatin(positive control) groups with 12 mice in each group.They were fed with high-fat diet for 4 weeks except those in Normal group and then treated with indicated drugs orsolvent for another 4 weeks.The morphology and inflammation infiltration of aortic were examined with HE staining.The expression of BMP-2 in aortic was examined by immumohistochemical staining.Blood lipid levels were examined by automatic biochemical analyzer.The expression of IL-6,TNF-α and BMP-2 in serum and tissues was detected by ELISA method.The expression of ALP and the content of calcium were detected by commercially-available kits.HUVEC cells were stimulated with TNF-α and incubated with various concentrations of BBR for 24 h.The contents of intercellular cell adhesion molecule-1(ICAM-1),vascular cell adhesion molecule(VCAM-1),matrix metalloprotein-9(MMP-9) in the culture supernatant were detected by ELISA method.Calcification was induced with β-glycerophosphatein SMC cells and the effect of BBR on the content of calcium was examined.RESULTS 4-week berberine treatment markedly lowered serum TC and LDL-c levels and improved the plaque stability in Apo-/-E mice fed with a high-fat diet(P<0.05 or P<0.01) which was comparable with the effect of atorvastatin.Berberineal so significantly decreased the levels of IL-6 and TNF-α in mice serum and aortic tissues(P<0.05 or P<0.001).Berberine tended to decrease ALP,BMP-2 levels and the content of calcium in mice serum and aortic tissues(P<0.05,P<0.01 or P<0.001) which were not observed in atorvastatin group.Berberine significantly lowered the levels of ICAM-1,VCAM-1,and MMP-9 in TNF-α-stimulated HUVECs.It can also lowered the content of calcium in SMCs.CONCLUSION BBR can profitably regulate the levels of blood lipid in mice fed with a high-fat diet,decrease the injury caused by inflammation,and attenuate vascular calcification.It may improve atherosclerosis and play a role in cardiovascular protection. 展开更多
关键词 BERBERINE ATHEROSCLEROSIS vascular endothelium INFLAMMATION vascular calcification
暂未订购
Human induced pluripotent stem cells labeled with fluorescent magnetic nanoparticles for targeted imaging and hyperthermia therapy for gastric cancer 被引量:2
15
作者 Chao Li Jing Ruan +8 位作者 Meng Yang Fei Pan Guo Gao Su Qu You-Lan Shen Yong-Jun Dang Kan Wang Wei-Lin Jin Da-Xiang Cui 《Cancer Biology & Medicine》 SCIE CAS CSCD 2015年第3期163-174,共12页
Objective: Human induced pluripotent stem(i PS) cells exhibit great potential for generating functional human cells for medical therapies. In this paper, we report for use of human i PS cells labeled with fluorescent ... Objective: Human induced pluripotent stem(i PS) cells exhibit great potential for generating functional human cells for medical therapies. In this paper, we report for use of human i PS cells labeled with fluorescent magnetic nanoparticles(FMNPs) for targeted imaging and synergistic therapy of gastric cancer cells in vivo. Methods: Human i PS cells were prepared and cultured for 72 h. The culture medium was collected, and then was coincubated with MGC803 cells. Cell viability was analyzed by the MTT method. FMNP-labeled human i PS cells were prepared and injected into gastric cancer-bearing nude mice. The mouse model was observed using a small-animal imaging system. The nude mice were irradiated under an external alternating magnetic field and evaluated using an infrared thermal mapping instrument. Tumor sizes were measured weekly. Results: iP S cells and the collected culture medium inhibited the growth of MGC803 cells. FMNP-labeled human iP S cells targeted and imaged gastric cancer cells in vivo, as well as inhibited cancer growth in vivo through the external magnetic field. Conclusion: FMNP-labeled human i PS cells exhibit considerable potential in applications such as targeted dual-mode imaging and synergistic therapy for early gastric cancer. 展开更多
关键词 Human induced pluripotent stem cell (human iPS cells) targeted imaging hyperthermia therapy fluorescent magneticnanoparticles gastric cancer nude mice
暂未订购
A handy review of carpal tunnel syndrome:From anatomy to diagnosis and treatment 被引量:24
16
作者 Mohammad Ghasemi-rad Emad Nosair +8 位作者 Andrea Vegh Afshin Mohammadi Adam Akkad Emal Lesha Mohammad Hossein Mohammadi Doaa Sayed Ali Davarian Tooraj Maleki-Miyoab Anwarul Hasan 《World Journal of Radiology》 CAS 2014年第6期284-300,共17页
Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90%... Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90% of all entrapment neuropathies. This review aims to provide an outline of CTS by considering anat-omy, pathophysiology, clinical manifestation, diagnostic modalities and management of this common condition, with an emphasis on the diagnostic imaging evaluation. 展开更多
关键词 Carpal tunnel syndrome ANATOMY Ultra-sonography Magnetic resonance imaging Computed tomography ULTRASONOGRAPHY Diagnosis Nerve con-duction study Treatment
暂未订购
Molecular cloning of virB12 gene of Brucella melitensis 16M strain in pET28a vector 被引量:2
17
作者 Shiva Mirkalantari Nour Amirmozafari +1 位作者 Bahram Kazemi Gholamreza Irajian 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2012年第7期511-513,共3页
Objective:To clone the virB12 gene in pET28a expression vector for production of recombinant protein to be used as antigenic component for future serological test development.Methods: Brucella melitensis(B.melitensis)... Objective:To clone the virB12 gene in pET28a expression vector for production of recombinant protein to be used as antigenic component for future serological test development.Methods: Brucella melitensis(B.melitensis) 16M strain was cultured and bacterial DNA was extracted by Bioneer AccuPrep~ Genomic DNA Extraction Kit.Oligonucleotide primer pair was designed based on Brucella virB12 gene sequence with BamHI and HindIII restriction site at 5’ end of the forward and reverse primers,respectively.DNA amplification was performed using PrimSTAR~ HS DNA polymerase and the PCK product was purified by DNA AccuPrepGel Purification Kit.Purified DNA was cloned into pJET1.2 cloning vector.VirB12 gene fragment was excised from pJET1.2 asing BamHI/HindIII and subsequendy subcloned into pET28a(+).Results:Brucella virB12 gene was successfully cloned in pJET1.2 and then in pET28a(+) plasmids.PCR and restriction enzyme digestion confirms the procedure.Conclusion:We cloned and expressed the Brucella virB12 gene which could be used as antigenic component for specific serological assay development. 展开更多
关键词 BRUCELLA CLONING virB12 pET28a pJE1.2
在线阅读 下载PDF
Flexural and Dynamic Mechanical Properties of Alkali-Treated Coir/Pineapple Leaf Fibres Reinforced Polylactic Acid Hybrid Biocomposites 被引量:3
18
作者 Ramengmawii Siakeng Mohammad Jawaid +4 位作者 Mohammad Asim Hassan Fouad Sameer Awad Naheed Saba Suchart Siengchin 《Journal of Bionic Engineering》 SCIE EI CSCD 2021年第6期1430-1438,共9页
Polylactic acid(PLA)possesses good mechanical and biodegradability properties which make it a suitable material for polymer composites whereas brittleness and high costs limit its utilization in various applications.T... Polylactic acid(PLA)possesses good mechanical and biodegradability properties which make it a suitable material for polymer composites whereas brittleness and high costs limit its utilization in various applications.The reinforcement of natural fibres with biopolymers has been formed to be an efficient technique to develop composites having the ability to be fully biodegradable.This study concerns with the incorporation of various percentages of untreated and alkali-treated Coir Fibres(CF)and pineapple leaf fibres(PALF)in PLA biocomposites and characterizations of flexural,morphological and dynamic mechanical properties.Flexural properties showed that the treated C1P1 hybrid composites(C1P1A)displayed highest flexural strength(35.81 MPa)and modulus(5.28 GPa)among all hybrid biocomposites.Scanning Electron Microscopy(SEM)revealed a behaviour of fibre-matrix adhesion in untreated treated biocomposites.SEM observation revealed good dispersion of the fillers in PLA.Dynamic mechanical analysis revealed that C1P1A showed highest glass transition temperature(Tg)and storage modulus(E')while untreated C3P7 displayed the least Tg and E'.Overall findings showed that alkali-treated hybrid biocomposites(CF/PALF/PLA)especially C1P1A have improved flexural properties,dynamic and morphological properties over untreated biocomposites.Success of these findings will provide attracting consideration of these hybrid biocomposites for various lightweight uses in a broad selection of industrial applications such as biomedical sectors,automobile,construction,electronics equipment,and hardware tools. 展开更多
关键词 Coir fibres Pineapple leaf fibres Biocomposites Polylactic acid Mechanical properties Dynamic mechanical properties
在线阅读 下载PDF
Correlations Between Single Nucleotide Polymorphisms,Cognitive Dysfunction,and Postmortem Brain Pathology in Alzheimer's Disease Among Han Chinese 被引量:6
19
作者 Qian Yang Kang Chen +9 位作者 Hanlin Zhang Wanying Zhang Changlin Gong Qing Zhang Pan Liu Tianyi Sun Yuanyuan Xu Xiaojing Qian Wenying Qiu Chao Ma 《Neuroscience Bulletin》 SCIE CAS CSCD 2019年第2期193-204,共12页
In this study, the distribution of five Alzheimer's disease(AD)-related single nucleotide polymorphisms(SNPs) in the Han population was examined in combination with the evaluation of clinical cognition and brain p... In this study, the distribution of five Alzheimer's disease(AD)-related single nucleotide polymorphisms(SNPs) in the Han population was examined in combination with the evaluation of clinical cognition and brain pathological analysis. The associations among SNPs,clinical daily cognitive states, and postmortem neuropathological changes were analyzed in 110 human brains from the Chinese Academy of Medical Sciences/Peking Union Medical College(CAMS/PUMC) Human Brain Bank.APOE ?4(OR = 4.482, P = 0.004), the RS2305421 GG genotype(adjusted OR = 4.397, P = 0.015), and the RS10498633 GT genotype(adjusted OR = 2.375,P = 0.028) were associated with a higher score on the ABC(Ab plaque score, Braak NFT stage, and CERAD neuritic plaque score) dementia scale. These results advance our understanding of the pathogenesis of AD,the relationship between pathological diagnosis and clinical diagnosis, and the SNPs in the Han population for future research. 展开更多
关键词 Human brain bank Alzheimer's disease APOEε4 ADAM10 SLC24A4
原文传递
Efficacy and safety of sacubitril/valsartan after six months in patients with heart failure with reduced ejection fraction and asymptomatic hypotension 被引量:3
20
作者 An-Hu WU Zong-Wei LIN +7 位作者 Zhuo-Hao YANG Hui ZHANG Jia-Yi HU Yi WANG Rui TANG Xin-Yu ZHANG Xiao-Ping JI Hui-Xia LU 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2023年第12期855-866,共12页
BACKGROUND It is not clear whether sacubitril/valsartan is beneficial for patients with heart failure(HF)with reduced ejec-tion fraction(HFrEF)and low systolic blood pressure(SBP).This study aimed to investigate the e... BACKGROUND It is not clear whether sacubitril/valsartan is beneficial for patients with heart failure(HF)with reduced ejec-tion fraction(HFrEF)and low systolic blood pressure(SBP).This study aimed to investigate the efficacy and tolerability of sacu-bitril/valsartan in HFrEF patients with SBP<100 mmHg.METHODS&RESULTS An observational study was conducted on 117 patients,40.2%of whom had SBP<100 mmHg wit-hout symptomatic hypotension,and 59.8%of whom had SBP≥100 mmHg in an optimized HF follow-up management system.At the 6-month follow-up,52.4%of patients with SBP<100 mmHg and 70.0%of those with SBP≥100 mmHg successfully rea-ched the target dosages of sacubitril/valsartan.A reduction in the concentration of N-terminal pro-B-type natriuretic peptide was similar between patients with SBP<100 mmHg and SBP≥100 mmHg(1627.5 pg/mL and 1340.1 pg/mL,respectively;P=0.75).The effect of sacubitril/valsartan on left ventricular ejection fraction was observed in both SBP categories,with a 10.8%increase in patients with SBP<100 mmHg(P<0.001)and a 14.0%increase in patients with SBP≥100 mmHg(P<0.001).The effects of sac-ubitril/valsartan on SBP were statistically significant and inverse across both SBP categories(P=0.001),with an increase of 7.5 mmHg in patients with SBP<100 mmHg and a decrease of 11.5 mmHg in patients with SBP≥100 mmHg.No statistically signi-ficant differences were observed between the two groups in terms of the occurrence of symptomatic hypotension,deteriorating re-nal function,hyperkalemia,angioedema,or stroke.CONCLUSIONS Within an optimized HF follow-up management system,sacubitril/valsartan exhibited excellent tolerability and prompted left ventricular reverse remodeling in patients with HFrEF who presented asymptomatic hypotension. 展开更多
关键词 PATIENTS HYPOTENSION DOSAGE
暂未订购
上一页 1 2 10 下一页 到第
使用帮助 返回顶部