检索结果-南通市图书馆

Blood flow restriction in human skeletal muscle during rest periods after high-load resistance training down-regulates miR-206 and induces Pax7

引用

Journal of Sport and Health Science 2021年第4期10卷 470-477页

作者： Ferenc Torma Zoltan Gombos Marcell Fridvalszki Gergely Langmar Zsofia Tarcza Bela Merkely hisashi naito Noriko Ichinoseki-Sekine Masaki Takeda Zsolt Murlasits Peter Osvath Zsolt Radak Research Center for Molecular Exercise Science University of Physical EducationBudapest 1123Hungary Department of Kinesiology University of Physical EducationBudapest 1123Hungary Heart and Vascular Center Semmelweis UniversityBudapest 1122Hungary Faculty of Health and Sports Science Juntendo UniversityChiba 270-1695Japan Faculty of Health and Sports Science Doshisha UniversityKyotanabe 610-0394Japan Laboratory of Animal Research Center Qatar UniversityDoha 2713Qatar Department of Health Sciences and Sport Medicine University of Physical EducationBudapest 1123Hungary

Backgroud:Blood flow re striction(BFR) with low-intensity re sistance training has been shown to result in hypertrophy of skeletal *** this study,we tested the hypothesis that BFR during the rest periods between acute,high-intensity resistance exercise sessions(70% of 1 repetition maximum,7 sets with 10 repetitions) enhances the effects of the resistance ***:A total of 7 healthy young men performed squats,and between sets BFR was carried out on one leg while the other leg served as a *** BFR was applied during rest periods,even severe occlusion pressure(approximately 230 mmHg),which almost completely blocked blood flow,was well-tolerated by the *** muscle-specific microRNAs were measured from the biopsy samples,which were taken 2 h after the acute ***:Doppler data showed that the pattern of blood flow recovery changed significantly between the first and last ***-206 levels significantly decreased in the BFR leg compared to the *** mRNA levels of RAC-β serine/threonine-protein kinase v22,nuclear re spiratory factor 1,vascular endothelial growth factor,lupus Ku autoantigen protein p70 genes(p <0.05),and paired box 7(p <0.01) increased in the BFR *** protein levels of paired box 7,nuclear respiratory factor 1,and peroxisome proliferator-activated receptor y coactivator 1α did not differ between the BFR leg and the control ***:BFR,during the rest periods of high-load resistance training,could lead to mRNA elevation of those proteins that regulate angiogenesis,mitochondrial biogenesis,and muscle hypertrophy and ***,BFR also can cause DNA damage,judging from the increase in mRNA levels of lupus Ku autoantigen protein p70.

关键词： Blood flow restriction High-intensity resistance training microRNA Satellite cells

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Blood flow restriction during the resting periods of high-intensity resistance training does not alter performance but decreases MIR-1 and MIR-133A levels in human skeletal muscle

引用

Sports Medicine and Health Science 2021年第1期3卷 40-45页

作者： Ferenc Torma Peter Bakonyi Zsolt Regdon Zoltan Gombos Matyas Jokai Gergely Babszki Marcell Fridvalszki Laszl Virg hisashi naito SyedRehan Iftikhar Bukhari Zsolt Radak Research Center of Molecular Exercise Science University of Physical EducationBudapestHungary Department of Medical Chemistry Faculty of MedicineUniversity of DebrecenHungary Department of Exercise Physiology Graduate School of Health and Sports Science&MedicineJuntendo UniversityJapan Doctoral School of Clinical Medicine Semmelweis UniversityBudapestHungary Faculty of Sport Sciences Waseda UniversityJapan

Blood flow restriction(BFR)during exercise bouts has been used to induce hypertrophy of skeletal muscle,even with low ***,the effects of BFR during the rest periods between sets are not *** have tested the hypothesis that BFR during rest periods between sets of high-intensity resistance training would enhance ***-two young adult male university students were recruited for the current study,with n=11 assigned to BFR and n=11 to a control *** results revealed that four weeks training at 70%of 1 RM,five sets and 10 repetitions,three times a week with and without BFR,resulted in similar progress in maximal strength and in the number of maximal *** miR-1 and miR-133a decreased significantly in the vastus lateralis muscle of BFR group compared to the group without BFR,while no significant differences in the levels of miR133b,miR206,miR486,and miR499 were found between *** conclusion,it seems that BFR restrictions during rest periods of high-intensity resistance training,do not provide benefit for enhanced performance after a four-week training ***,BFR-induced downregulation of miR-1 and miR-133a might cause different adaptive responses of skeletal muscle to high intensity resistance training.

关键词： Blood flow restriction Occlusion Skeletal muscle High intensity resistance training microRNA

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of a combination of astaxanthin supplementation, heat stress, and intermittent reloading on satellite cells during disuse muscle atrophy

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第11期19卷 844-852页

作者： Toshinori YOSHIHARA Takao SUGIURA Nobuyuki MIYAJI Yuki YAMAMOTO Tsubasa SHIBAGUCHI Ryo KAKIGI hisashi naito Katsumasa GOTO Daijiro OHMORI Toshitada YOSHIOKA Graduate School of Health and Sports Science Juntendo UniversityInzaiChiba 270-1695Japan Faculty of Education Yamaguchi UniversityYamaguchiYamaguchi 753-8513Japan Toyo Koso Kagaku Co.Ltd. UrayasuChiba 279-0041Japan Institute of Health and Sports Science Kurume UniversityKurumeFukuoka 839-8502Japan Institute of Liberal Arts and Science Kanazawa UniversityKanazawaIshikawa 920-1192Japan Faculty of Medicine Juntendo UniversityBunkyo-kuTokyo 113-0033Japan Graduate School of Health Sciences Toyohashi SOZO UniversityToyohashiAichi 440-8511Japan Department of Chemistry School of MedicineJuntendo UniversityInzaiChiba 270-1695Japan Hirosaki Gakuin University HirosakiAomori 036-8577Japan

We examined the effect of a combination of astaxanthin （AX） supplementation, repeated heat stress, and intermittent reloading （IR） on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats （8-week-old） were divided into control, hind-limb unweighting （HU）, IR during HU, IR with AX supplementation, IR with repeated heat stress （41.0-41.5 ℃ for 30 min）, and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soteus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells.

关键词： Antioxidant astaxanthin Disuse muscle atrophy Heat stress Satellite cell

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

人横纹肌肉瘤细胞中RGS4基因表达受表观遗传调控的研究

引用

内蒙古大学学报（自然科学版） 2020年第2期51卷 163-167页

作者：包巴图内藤久士呼和浩特民族学院体育学院呼和浩特010051 日本顺天堂大学运动医学研究院日本千叶县270-1695

RGS蛋白是G蛋白信号途径的关键调节分子之一,RGS蛋白的异常表达与多种恶性肿瘤的发展相关,其中RGS4蛋白的作用鲜有报道。横纹肌肉瘤是儿童最常见的起源于原始间叶组织的恶性肿瘤,临床病例中比较常见。以培养不同代数的横纹肌肉瘤RD细胞... 详细信息

RGS蛋白是G蛋白信号途径的关键调节分子之一,RGS蛋白的异常表达与多种恶性肿瘤的发展相关,其中RGS4蛋白的作用鲜有报道。横纹肌肉瘤是儿童最常见的起源于原始间叶组织的恶性肿瘤,临床病例中比较常见。以培养不同代数的横纹肌肉瘤RD细胞系为材料,分别利用RT-PCR技术及Western blot技术分析了5-Aza和TSA处理下的RGS4基因mRNA水平及蛋白质水平的表达量。同时利用ChIP试验明确了RGS4基因启动子区域结合的调控蛋白。试验结果显示RGS4基因的表达存在着表观遗传调控机理,受到甲基化和乙酰化的调控,MeCP2和HDAC2分别参与RGS4基因的DNA甲基化和组蛋白乙酰化调控,研究结果表明RGS4基因的表达与横纹肌肉瘤的产生相关,本试验为进一步研究横纹肌肉瘤的产生机理奠定了基础。

关键词： RGS4 儿童横纹肌肉瘤表观遗传表达调控

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

不同时间的热处理对大鼠肌肉Akt/mTOR信号途径的影响

引用

内蒙古大学学报（自然科学版） 2018年第3期49卷 289-295页

作者：包巴图包金海内藤久士呼和浩特民族学院体育系呼和浩特010051 日本顺天堂大学运动医学研究院

热处理会诱导骨骼肌中肌肉蛋白的合成及肌肉肥大,同时刺激细胞信号途径.另外,有报道表明38℃以上的热处理以温度依赖性方式激活细包内信号途径.然而,骨骼肌细胞中热刺激对信号途径的持续性影响方面鲜有报道.因此,分析了热处理对大鼠骨... 详细信息

热处理会诱导骨骼肌中肌肉蛋白的合成及肌肉肥大,同时刺激细胞信号途径.另外,有报道表明38℃以上的热处理以温度依赖性方式激活细包内信号途径.然而,骨骼肌细胞中热刺激对信号途径的持续性影响方面鲜有报道.因此,分析了热处理对大鼠骨骼肌中信号途径的作用.利用Western blot技术检测热处理后不同时间点(30,60和90min)的腓肠肌及比目鱼肌中Akt/mTOR信号途径蛋白Akt,mTOR,p70S6K及4E-BP1的磷酸化水平及热激蛋白HSP72的表达水平.结果表明,Akt及mTOR的磷酸化水平没有变化,磷酸化的p70S6K及4E-BP1水平有所上调,而热激蛋白HSP72的水平有所下调.

关键词：大鼠肌肉热处理 Akt/mTOR信号途径磷酸化蛋白水平

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

不同温度热处理对大鼠骨骼肌Akt/mTOR信号通路的影响

引用

内蒙古大学学报（自然科学版） 2018年第6期49卷 605-611页

作者：包巴图包金海内藤久士呼和浩特民族学院体育系呼和浩特010051 日本顺天堂大学运动医学研究院

热处理会诱导应急蛋白,从而促进细胞蛋白质合成并进一步导致肌肉肥大.但热处理对细胞内蛋白质合成中主要信号通路Akt/mTOR信号途径的影响鲜有报道.本研究分析了热处理对大鼠骨骼肌中Akt/mTOR信号途径的作用.利用Western blot技术检测了... 详细信息

热处理会诱导应急蛋白,从而促进细胞蛋白质合成并进一步导致肌肉肥大.但热处理对细胞内蛋白质合成中主要信号通路Akt/mTOR信号途径的影响鲜有报道.本研究分析了热处理对大鼠骨骼肌中Akt/mTOR信号途径的作用.利用Western blot技术检测了不同温度(37℃、38℃、39℃、40℃)的热处理对大鼠腓肠肌及比目鱼肌中Akt/mTOR信号途径蛋白Akt,mTOR,p70S6K及4E-BP1的磷酸化水平及热激蛋白HSP72的表达水平.结果表明39℃、40℃的热处理能够激活Akt及下游p70S6K的活性而对于热激蛋白HSP72的表达水平没有影响.

关键词：大鼠肌肉热处理 Akt/mTOR信号途径磷酸化蛋白水平

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Functionalization of silica nanoparticles for nucleic acid delivery

引用

Nano Research 2018年第10期11卷 5219-5239页

作者： Rimpei Kamegawa Mitsuru naito Kanjiro Miyata Department of Materials Engineering Graduate School of Engineering The University of Tokyo Tokyo 113-8656 Japan Center for Disease Biology and Integrative Medicine Graduate School of Medicine The University of Tokyo Tokyo 113-0033 Japan

Silica nanoparticles （SiNPs） have been widely engineered for biomedical applications, such as bioimaging and drug delivery, because of their high tunability, which allows them to perform specific functions. In this review, we discuss the functionalization and performance of SiNPs for nucleic acid delivery. Nucleic acids, including plasmid DNA （pDNA） and small interfering RNA （siRNA）, constitute the next generation molecular drugs for the treatment of intractable diseases. However, their low bioavailability requires delivery systems that can circumvent nuclease attack and kidney filtration to ensure efficient access to the target cell cytoplasm or nucleus. First, we discussed the biological significance of nucleic acids and the parameters required for their successful delivery. Next, we reviewed SiNP designing for nucleic acid delivery with respect to nucleic acid loading and release, cellular uptake, endosomal escape, and biocompatibility. In addition, we discussed the co-delivery potential of SiNPs. Finally, we analyzed the current challenges and future directions of SiNPs for advanced nucleic acid delivery.

关键词： silica nanoparticle mesoporous silica silica coating nucleic acid drug delivery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Safety of pancreatic surgery with special reference to antithrombotic therapy:A systematic review of the literature

引用

World Journal of Clinical Cases 2021年第23期9卷 6747-6758页

作者： Takahisa Fujikawa Shigetoshi naito Department of Surgery Kokura Memorial HospitalKitakyushu 802-8555Japan

BACKGROUND Postpancreatectomy hemorrhage(PPH)is the most severe type of complication after pancreatic surgery,although the effect of antithrombotic therapy(ATT)on PPH is largely *** safety and efficacy of chemical thromboprophylaxis for venous thromboembolism(VTE)remains *** To elucidate the effect of ATT on *** Published articles between 2013 and 2020 were searched from PubMed and Google Scholar,and after careful reviewing of all studies,studies concerning ATT and pancreatic surgery were *** such as study design,type of surgical procedures,type of antithrombotic drugs,and surgical outcome were extracted from the *** Nineteen published articles with a total of 37863 patients who underwent pancreatic surgery were included in the systematic *** were cohort studies,with only three being prospective in *** studies demonstrated that in patients receiving chronic ATT,which were mostly managed by heparin bridging,the risk of PPH was higher compared with those without ATT,and one study showed that patients with direct-acting oral anticoagulants managed by heparin bridging had significantly higher postoperative bleeding rates than *** remaining six studies reported that pancreatic surgery can be safely performed in patients receiving chronic ATT,even under preoperative aspirin *** chemical thromboprophylaxis for VTE,most studies have shown a potentially high risk of PPH in patients undergoing chemical thromboprophylaxis;however,its effectiveness against VTE has not been statistically demonstrated,particularly among Asian *** Pancreatic surgery in chronically ATT-received patients can be safely performed without an increase in the occurrence of PPH,although the safety and efficacy of chemical thromboprophylaxis for VTE during pancreatic surgery is still *** investigation using reliable studies with good design is required to establish definite pr

关键词： Antithrombotic therapy Pancreatic surgery Perioperative management Antiplatelet therapy Anticoagulation therapy Pancreaticoduodenectomy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparison of the effects of cold water and ice ingestion on endurance cycling capacity in the heat

引用

Journal of Sport and Health Science 2017年第1期6卷 111-117页

作者： Takashi naito Tetsuro Ogaki Graduate School of Human-Environment Studies Kyushu UniversityFukuoka 40218Japan

Purpose: The purpose of this study was to examine the effects of pre-cooling and fluid replacement with either crushed ice or cold ***: On 2 separate occasions, in a counterbalanced order, 9 recreationally-trained males ingested 1.25 g/kg(80–100 g) of either crushed ice(0.5℃)or cold water(4℃) every 5 min for 30 min before exercise. They also ingested 2.0 g/kg(130–160 g) of the same treatment drink at 15 min, 30 min, and45 min after the commencement of cycling to exhaustion at 60%VO_(2max) until voluntary exhaustion in a hot environment(35℃ and 30% relative humidity).Results: The cycling time to exhaustion in the crushed ice trial(50.0 ± 12.2 min) was longer than the cold water trial(42.2 ± 10.1 min; p = 0.02).Although the rectal temperature fell by 0.37℃± 0.03℃(p = 0.01) at the end of the resting period after the crushed ice ingestion, the rates of rise in rectal temperature during the exercise period were not significantly different between these 2 conditions(crushed ice: 0.23℃± 0.07℃, 5 min;cold water: 0.22℃± 0.07℃, 5 min; p = 0.94).Conclusion: Crushed ice ingestion before and during exercise in a hot environment may be a preferred and effective approach for minimizing thermal strain, and for improving endurance performance as compared with cold water ingestion.

关键词： Cold water ingestion Pre-cooling Rectal temperature Thermoregulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Liquid Immiscibility of Boninite in Xiangcheng, Southwestern China, and Its implication to Genetic Relationship between Boninite and Komatiitic Basalt

引用

Acta Geologica Sinica(English Edition) 2001年第1期75卷 74-93页

作者： Tetusro Urabe Takagi naito Geological Survey of Japan Ibaraki 305 JapanGeological Survey of Japan Ibaraki 305 JapanGeological Survey of Japan Ibaraki 305 Japan

Boninitic rocks and associated high-magnesian basalt and high-iron tholeiite in the Xiangcheng area constitute the basal horizon of the arc volcanic sequence in the Triassic Yidun Island-Arc, southwestern China. The boninite occurs as pillow, massive and ocellar lavas; the last one possesses well-developed globular structure and alternates with the former two. The boninite is characterized by the absence of phenocrysts of olivine and low-Ca pyroxenes and by low CaO/Al2O3 ratios (1000 ppm) and Ni (>250 ppm). The normalized abundance patterns (NAP) of trace elements to primitive mantle are similar to the NAP of low-Ca modern boninites and SHMB in the Archaean and Proterozoic.

关键词： boninite komatiitic basalt liquid immiscibility Xiangcheng area of Sichuan

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：