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植物内生菌活性代谢产物最新研究进展 被引量:36
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作者 靳锦 赵庆 +1 位作者 张晓梅 李文均 《微生物学杂志》 CAS CSCD 2018年第3期103-113,共11页
内生菌广泛存在于植物组织中,作为一种新型的微生物资源,具有丰富的物种多样性,也是发掘新型天然活性物质的重要途径之一,有些内生菌还能产生与宿主植物相同或相似的活性成分。因此从植物内生菌中挖掘抗菌尤其抗临床耐药菌、抗肿瘤等天... 内生菌广泛存在于植物组织中,作为一种新型的微生物资源,具有丰富的物种多样性,也是发掘新型天然活性物质的重要途径之一,有些内生菌还能产生与宿主植物相同或相似的活性成分。因此从植物内生菌中挖掘抗菌尤其抗临床耐药菌、抗肿瘤等天然活性产物不仅为新药的研发提供了新的方向,还能在一定程度上解决传统的天然产物药源——药用植物生长缓慢、资源紧缺等问题。从多个角度概述了近年来国内外报道的植物内生菌次生代谢产物及其来源、生物活性等方面的主要成果和最新进展,以期为植物内生菌活性代谢产物的研究提供参考。 展开更多
关键词 植物内生菌 次生代谢产物 生物活性
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Effects of electroacupuncture on microcirculatory blood flow and glucose transporter function in the hippocampus 被引量:6
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作者 Lu, Yan Han, Bingbing Wang, Shijun 《Neural Regeneration Research》 SCIE CAS CSCD 2011年第3期200-205,共6页
Nerve cell metabolism in post brain ischemia depends on increased microcirculation perfusion and transport function of microvascular endothelial cells. In the present study, a rat model of middle cerebral artery occlu... Nerve cell metabolism in post brain ischemia depends on increased microcirculation perfusion and transport function of microvascular endothelial cells. In the present study, a rat model of middle cerebral artery occlusion was established to investigate the influence of electroacupuncture (EA) on hippocampal CA1 cerebral blood flow and glucose transporter 1 (GLUT1) expression in the microvascular endothelial cells. Following EA at Neiguan (PC 6), the cerebral blood flow in the ischemic hippocampal CA1 region was significantly elevated, the number and microvascular integrated absorbance of the GLUTl-positive cells were significantly increased, nerve cell damage was ameliorated, and GLUT1 protein expression in the ischemic hippocampus was significantly increased. Results demonstrate that EA increased the cerebral blood flow of the hippocampal CA1 region and improved the glucose transport function, thereby attenuating neuronal injuries. 展开更多
关键词 ELECTROACUPUNCTURE Neiguan (PC 6) focal cerebral ischemia microvascularendothelial cells glucose transporter 1 cerebral blood flow CA1 region neural regeneration
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Circulating microRNAs: Novel biomarkers for esophageal cancer 被引量:16
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作者 Zhou, Sheng-Li Wang, Li-Dong 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第19期2348-2354,共7页
Esophageal carcinogenesis is a multi-stage process, involving a variety of changes in gene expression and physiological structure change. MicroRNAs (miRNAs) are a class of small non-coding endogenous RNA molecules. Re... Esophageal carcinogenesis is a multi-stage process, involving a variety of changes in gene expression and physiological structure change. MicroRNAs (miRNAs) are a class of small non-coding endogenous RNA molecules. Recent innovation in miRNAs profiling technology have shed new light on the pathology of esophageal carcinoma (EC), and also heralded great potential for exploring novel biomarkers for both EC diagnosis and treatment. Frequent dysregulation of miRNA in malignancy highlights the study of molecular factors upstream of gene expression following the extensive investigation on elucidating the important role of miRNA in carcinogenesis. We herein present a thorough review of the role of miRNAs in EC, addressing miRNA functions, their putative role as oncogenes or tumor suppressors and their potential target genes. The recent progresses in discovering the quantifiable circulating cancer-associated miRNAs indicate the potential clinical use of miRNAs as novel minimally invasive biomarkers for EC and other cancers. We also discuss the potential role of miRNAs in detection, screening and surveillance of EC as miRNAs can be a potential target in personalized treatment of EC. 展开更多
关键词 Esophageal cancer Circulating microRNA
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Effect of Aconiti Lateralis Radix Praeparata combined with Cinnamomi Cortex on intestinal motility and expression of SCF and c-Kit in slow transit constipation rats with Yang deficiency syndrome
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作者 张远哲 《China Medical Abstracts(Internal Medicine)》 2024年第1期12-13,共2页
Objective To investigate the effects of the Aconiti lateralis Radix Praeparata-Cinnamomi Cortex (ALRP-CC)compound on the expression of intestinal neurotransmitters and stem cell factor (SCF),c-kitprotooncogeneprotein ... Objective To investigate the effects of the Aconiti lateralis Radix Praeparata-Cinnamomi Cortex (ALRP-CC)compound on the expression of intestinal neurotransmitters and stem cell factor (SCF),c-kitprotooncogeneprotein (c-Kit) in slow transit constipation (STC) rats with Yang deficiency syndrome,and to explore its mechanism of action for improving intestinal motility. 展开更多
关键词 RADIX MOTILITY RATS
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Relationship between the partitioning properties of motoneuron recruitment and the needle feeling propagation 被引量:3
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作者 Zheng Zheng Mei Yu Yikuan Xie 《Chinese Science Bulletin》 SCIE EI CAS 1998年第7期598-603,共6页
Histological and physiological studies indicated that most skeletal muscles can be divided into a series of relatively independent sub-volumes: "neuromuscular compartments" and the partitioning property of t... Histological and physiological studies indicated that most skeletal muscles can be divided into a series of relatively independent sub-volumes: "neuromuscular compartments" and the partitioning property of the muscle result in the localization of muscle reflex. In the present experiment we studied the recruitment properties of medial gastracnemius (MG) muscle motoneuron pool of decerebrate cat with two kinds of local mechanical stimulation: local stretch and acupuncture-like stimuli. The results indicate that: (ⅰ) there is an obvious property of localization of recruitment activity, only the MNs which innervate the stimulated compartment were recruited by weaker and shorter stimuli; (ⅱ) recruitment activity spread to those MNs which supply the adjacent and distal compartments during the strength of stimulation or duration of the stimulation was increased; and (ⅲ) the recruitment property of muscle activity elicited by the local mechanical stimulation is thought similar to that of "needle feeling" along the meridian pathway during stimulation of acupuncture point. 展开更多
关键词 MOTONEURON localization of REFLEX PROPAGATION of NEEDLE feeling.
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Effects of acupoint area and non-acupoint area of eye-acupuncture on expressions of VIP and AQP 8 in colonic tissues in rats with D-IBS
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作者 刘慧慧 《China Medical Abstracts(Internal Medicine)》 2012年第4期195-196,共2页
Objective To explore the point specificity of eye-acupuncture and the mechanism of eye-acupuncture on diarrhea-predominant irritable bowel syndrome (D-IBS).Methods Forty male Wistar rats of SPF grade were randomly div... Objective To explore the point specificity of eye-acupuncture and the mechanism of eye-acupuncture on diarrhea-predominant irritable bowel syndrome (D-IBS).Methods Forty male Wistar rats of SPF grade were randomly divided into a normal group,a model group,a eye-acupuncture point(AA) group 展开更多
关键词 ACUPUNCTURE ACUPOINT diarrhea COLONIC IRRITABLE predominant intestine specificity MUCOSA vasoactive
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Anti-tumor effect of Sendai virus Tianjin strain defective interfering particles on tumor-bearing mice
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作者 石立莹 《China Medical Abstracts(Internal Medicine)》 2014年第2期81-81,共1页
Objective To explore the anti-tumor effect and its mechanism of Sendai virus Tianjing strain defective interfering particles(DIP)on mouse models of colon carcinoma.Methods CT26 cells(5×106/0.1 ml)were subcutaneou... Objective To explore the anti-tumor effect and its mechanism of Sendai virus Tianjing strain defective interfering particles(DIP)on mouse models of colon carcinoma.Methods CT26 cells(5×106/0.1 ml)were subcutaneously injected into the back of Bal B/c mice to establish murine colon carcinoma model.After the tumors reached 5 mm in diameter,the mice were randomly di- 展开更多
关键词 DEFECTIVE TIANJIN COLON interfering SALINE CYTOMETRY carcino injected murine INTACT
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Effects of excessive fluoride on osteocalcin and glucose metabolism in mice
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作者 秦纹 《China Medical Abstracts(Internal Medicine)》 2019年第2期78-79,共2页
Objective To observe the effects of excessive fluorideon osteocalcin and glucose metabolism in mice.Methods Thirty-two male C57 mice ( body mass: 18-24 g) were selected as study subjects which were randomizedinto four... Objective To observe the effects of excessive fluorideon osteocalcin and glucose metabolism in mice.Methods Thirty-two male C57 mice ( body mass: 18-24 g) were selected as study subjects which were randomizedinto four groups (8 mice in each group) accordingto their body mass by random number table method:0 mg /L group (control group),50 mg /L fluorine group,100 mg /L fluorine group and 150 mg /L fluorine group.Sodium fluoride in distilled water was freely taken bythese animals to replicate fluorosis animal model. After12 weeks,total osteocalcin,uncarboxylated osteocalcin,insulin and glucagon were measured by enzyme-linkedimmunosorbent assay,fasting blood glucose and glycatedhemoglobin were measured by chemiluminescence. 展开更多
关键词 EFFECTS EXCESSIVE FLUORIDE GLUCOSE METABOLISM
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Impact and potential mechanism of human α-defensin 1 on low-density lipoprotein oxidation ability of ECV304 cells
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作者 许程洁 《China Medical Abstracts(Internal Medicine)》 2013年第3期158-158,共1页
Objective To explore the role and potential mechanism of humanα-defensin 1 (HNP-1) on low-density lipoprotein (LDL) oxidation ability of human endothenial cells (EVC304) .Methods Post incubation with LDL for3 h,the m... Objective To explore the role and potential mechanism of humanα-defensin 1 (HNP-1) on low-density lipoprotein (LDL) oxidation ability of human endothenial cells (EVC304) .Methods Post incubation with LDL for3 h,the malondiadehyde (MDA) and protein carbonyl (PCO) were detected in untreated ECV304 (control) 展开更多
关键词 DEFENSIN CARBONYL INCUBATION UNTREATED cytometry stimulated GENERA promoting
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The effect of Metformin on host-microbial metabolites in rats with glycolipid metabolism disorders
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作者 蒋丽艳 《China Medical Abstracts(Internal Medicine)》 2022年第2期94-94,共1页
Objective To investigate the effect of Metformin on host-microbial metabolites in rats with glycolipid metabolism disorders by metabolomics method, and to explain the mechanism of Metformin in improving glycolipid met... Objective To investigate the effect of Metformin on host-microbial metabolites in rats with glycolipid metabolism disorders by metabolomics method, and to explain the mechanism of Metformin in improving glycolipid metabolism.Methods Rats were randomly divided into normal control group(Con), model group(Mod) and Metformin group (Met). Feces were collected from each group. Ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) system was used to quantitate the fecal metabolites in each group. 展开更多
关键词 METABOLISM RATS METFORMIN
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High glucose impairs glucose metabolism and inhibits osteoblast differentiation via primary cilia/Hedgehog pathway in mouse embryonic osteoblast precursor cells
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作者 刘杰 《China Medical Abstracts(Internal Medicine)》 2022年第1期29-29,共1页
Objective To study the effects of high glucose on the proliferation,osteoblast differentiation and glucose metabolism of mouse embryonic osteoblast precursor cells(MC3T3-E1).Methods MC3T3-E1 cells were cultured with g... Objective To study the effects of high glucose on the proliferation,osteoblast differentiation and glucose metabolism of mouse embryonic osteoblast precursor cells(MC3T3-E1).Methods MC3T3-E1 cells were cultured with glucose a-MEM at concentrations of 5.6 mmol/L(Con group)and 25.0 mmol/L(HG group).Cell proliferation was detected by CCK-8 and Ki67 immunofluorescence. 展开更多
关键词 METABOLISM KI67 HEDGEHOG
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