检索结果-南通市图书馆

Molecular Cloning of a Novel Mouse Testis-specific Spermatogenic Cell Apoptosis Inhibitor Gene mTSARG7 as a Candidate Oncogene

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

Acta Biochimica et Biophysica Sinica 2005年第6期37卷 396-405页

作者： Xiao-Jun TAN Xiao-Wei XING Lu-yun LI Zhao-Di WU Chang-Gao ZHONG Dong-Song NIE Jun-Jiang FU Yang xiang yun deng Guang-Xiu LU Institute of Human Reproductive and Stem cell Engineering, Central South University, Changsha 410078,China Institute of Human Reproductive and Stem cell Engineering Central South University Changsha 410078 China

A novel mouse gene,mTSARG7(GenBank accession ***489184),with a full cDNA lengthof 2279 bp and containing 12 exons and 11 introns,was cloned from a mouse expressed sequence tag(GenBank accession ***644543)that was significantly up-regulated in *** gene waslocated in mouse chromosome 8A1.3 and encoded a protein containing 403 amino acid residues that was anew member of the acyltransferase family because the sequence contained the highly conserved phosphateacyltransferase(PlsC)domain existing in all acyltransferase-like *** mTSARG7 protein and AU041707protein shared 83.9% identity in 402 amino acid *** of the mTSARG7 gene was restrictedto the mouse *** results of the in situ hybridization analysis revealed that the mTSARG7 mRNA wasexpressed in mouse spermatogonia and *** localization studies showed that the EGFP-tagged mTSARG7 protein was localized in the cytoplasm of GC-1 spg *** mTSARG7 mRNA expres-sion was initiated in the mouse testis in the second week after birth,and the expression level increasedsteadily with spermatogenesis and sexual maturation of the *** results of the heat stress experimentshowed that the mTSARG7 mRNA expression gradually decreased as the heating duration ***3.1 Hygro(-)/mTSARG7 plasmid was constructed and introduced into GC-1 spg cells by *** mTSARG7 can accelerate GC-1 spg cells,causing them to traverse the S-phase and enterthe G2-phase,compared with the control group where this did not occur as there was no transfection *** conclusion,our results suggest that this gene may play an important role in spermatogenesisand the development of cryptorchid testes,and is a testis-specific apoptosis candidate oncogene.

关键词： mTSARG7 testis spermatogenesis oncogene

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

金佛山自然保护区中国种子植物特有属

生态学杂志 2007年第1期26卷 88-93页

作者：周先容向邓云戴玄长江师范学院生命科学系重庆涪陵408003

在野外调查和数量系统分析的基础上,对金佛山自然保护区的中国种子植物特有属进行了研究。结果表明,金佛山自然保护区分布有中国种子植物特有属51个,占该区种子植物属总数的4·59%,占全国同类属数的20·99%,其中裸子植物4属4种,被子植物... 详细信息

在野外调查和数量系统分析的基础上,对金佛山自然保护区的中国种子植物特有属进行了研究。结果表明,金佛山自然保护区分布有中国种子植物特有属51个,占该区种子植物属总数的4·59%,占全国同类属数的20·99%,其中裸子植物4属4种,被子植物4属65种。在被子植物中,双子叶植物占41属58种;单子叶植物占6属7种。在51个特有属中,单种属有39属,占总数的76·47%。唇形科、苦苣苔科、伞形科、兰科含特有属较多约占本区同类属的31·37%。特有属的生活型以多年生草本和落叶木本为主,两者共4属,占特有属总数的80·39%。特有属的分布区类型以东部和中部特有分布为主,并具有少量的南部特有分布成分,51个特有属的分布区类型表明了该区系由热带性质向温带性质的过渡性特征。本区的特有属植物多分布于低山和中山。金佛山与大巴山、武陵山、神农架关系较为密切,它们同属于川东-鄂西特有现象中心(或三峡中心)。在51个中国种子植物特有属中古特有属和珍稀濒危物种占有较大的比例,本区无疑是古植物区系的重要避难所。

关键词：种子植物特有属生活型分布区类型金佛山

在线全文

学校读者我要写书评

暂无评论

芦荟汁保鲜番茄的研究

食品科学 2007年第3期28卷 349-352页

作者：何士敏周先容向邓云涪陵师范学院生命科学系重庆涪陵408003

用芦荟汁为主要成分制成涂被液对番茄进行涂膜保鲜研究。结果表明:芦荟汁涂被液对番茄具有明显的保鲜作用。以库拉索芦荟为主要成分制成的涂被液保鲜效果最好,1%库拉索芦荟汁、0.5%淀粉、0.2%甘油等体积混合,是最佳涂被液。经此涂被液... 详细信息

用芦荟汁为主要成分制成涂被液对番茄进行涂膜保鲜研究。结果表明:芦荟汁涂被液对番茄具有明显的保鲜作用。以库拉索芦荟为主要成分制成的涂被液保鲜效果最好,1%库拉索芦荟汁、0.5%淀粉、0.2%甘油等体积混合,是最佳涂被液。经此涂被液保鲜处理的番茄其失重率、烂果率和褐变指数最低,总糖、总酸、VC和氨基酸含量变化幅度最小。此配方为最优配方。

关键词：芦荟汁涂被液番茄保鲜

植物生长调节物质对植物组织培养形态建成的调节控制

在线全文

学校读者我要写书评

暂无评论

涪陵师专学报 2001年第3期17卷 119-123页

作者：向邓云涪陵师范高等专科学校生物科学系重庆市408003

本文综述了在植物组织培养时植物生长调节物质对愈伤组织的诱导、增殖和形态建成，不定芽形成，不定根形成，离体成花的调节控制。

关键词：植物生长调节物质植物组织培养形态建成调节控制愈伤组织不定芽不定根花生长素

The composition of magmatic-hydrothermal fluids and their related metal mineralization

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2025年第1期68卷 208-225页

作者： Qihai SHU Jun deng State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and Resources China University of Geosciences Frontiers Science Center for Deep-time Digital Earth China University of Geosciences

Magmatic hydrothermal deposits are important sources of many bulk, precious, and rare metals, and have attracted interest from both academic and industrial communities. However, it is still unclear if the major enrichment of the ore-forming metals occurs in the parental magma source region, during the magma evolution, or after the fluid exsolution. Fluid inclusions trapped in hydrothermal minerals crystallized in the early, high-temperature stage before metal precipitation record information close to that of the initially exsolved magmatic fluids, which are helpful in revealing whether the metals have been already significantly enriched prior to the hydrothermal stage. In this study, available compositional data of such early-stage fluid inclusions from magmatic hydrothermal systems globally have been compiled. The results indicate that the concentrations of Cu,Sn, and W respectively from the Cu-, Sn-, and W-mineralized fluids are significantly higher than the hydrothermal systems that do not produce ores with the corresponding metals. This suggests that Cu, Sn, and W could have already been enriched in the magma source and/or magma evolution stage. The Mo concentrations show no difference between Mo-mineralized and Mobarren fluid systems, indicating no significant pre-enrichment in the source region or during the magma evolution. This also implies that an efficient collection of Mo from a large volume of magmas is required to account for the formation of a large Mo deposit. Almost all the hydrothermal fluids contain high concentrations of Fe and Zn-Pb, but only a few of them eventually form Fe or Zn-Pb deposits, reflecting an important role of the hydrothermal evolution process on the selective metal *** above results indicate that different metals are enriched in different stages of a magmatic hydrothermal system, and that the major roles played in the formation of a deposit vary with the metal types. In addition to the metal concentrations in the o

关键词： Magmatic hydrothermal deposits Fluid inclusions LA-ICP-MS Metal enrichment Mineralization mechanism

A Cross-Multi-Domain Trust Assessment Authority Delegation Method Based on Automotive Industry Chain

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2025年第1期82卷 407-426页

作者： Binyong Li Liangming deng Jie Zhang Xianhui deng School of Cybersecurity(Xin Gu Industrial College) Chengdu University of Information TechnologyChengdu610225China Advanced Cryptography and System Security Key Laboratory of Sichuan Province Chengdu610225China SUGON Industrial Control and Security Center Chengdu610225China

To solve the challenges of connecting and coordinating multiple platforms in the automotive industry and to enhance collaboration among different participants,this research focuses on addressing the complex supply relationships in the automotive market,improving data sharing and interactions across various platforms,and achieving more detailed integration of data and *** propose a trust evaluation permission delegation method based on the automotive industry *** proposed method combines smart contracts with trust evaluation mechanisms,dynamically calculating the trust value of users based on the historical behavior of the delegated entity,network environment,and other factors to avoid malicious node attacks during the permission delegation *** also introduce strict control over the cross-domain permission granting and revocation mechanisms to manage the delegation path,prevent information leakage caused by malicious node interception,and effectively protect data integrity and *** analysis shows that this method meets the realtime requirements of collaborative interaction in the automotive industry chain and provides a feasible solution to permission delegation issues in the automotive industry chain,offering dynamic flexibility in authorization and scalability compared to most existing solutions.

关键词： Automotive industry chain cross-domain access block chain delegate authority trust assessment

PEG浸老化种子对茎瘤芥幼苗叶片抗氧化系统的影响

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

种子 2011年第8期30卷 59-61页

作者：王慧超向邓云杨小容陈维长江师范学院生命科学与技术学院重庆408100

以茎瘤芥老化种子为材料,使用不同浓度PEG 6000(0%、5%、10%、15%、20%、25%、30%、35%),以不同的处理时间(4、8、12 h)浸种处理茎瘤芥老化种子,研究PEG 6000浸老化种子对茎瘤芥幼苗叶片抗氧化生理指标的影响。结果表明:30%PEG 6000浸... 详细信息

以茎瘤芥老化种子为材料,使用不同浓度PEG 6000(0%、5%、10%、15%、20%、25%、30%、35%),以不同的处理时间(4、8、12 h)浸种处理茎瘤芥老化种子,研究PEG 6000浸老化种子对茎瘤芥幼苗叶片抗氧化生理指标的影响。结果表明:30%PEG 6000浸种处理老化种子8 h,其幼苗叶片过氧化氢酶活性、过氧化物酶活性均增幅最大,游离脯氨酸含量降幅最大,且均与对照呈极显著差异。

关键词： PEG6000 茎瘤芥老化种子幼苗叶片抗氧化系统

Autophagy-targeting modulation to promote peripheral nerve regeneration

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第7期20卷 1864-1882页

作者： Yan Chen Hongxia deng Nannan Zhang Department of Obstetrics and Gynecology West China Second HospitalSichuan UniversityChengduSichuan ProvinceChina Key Laboratory of Birth Defects and Women and Children’s Diseases Ministry of EducationSichuan UniversityChengduSichuan ProvinceChina Laboratory of Reproductive Endocrinology and Reproductive Regulation Sichuan UniversityChengduSichuan ProvinceChina National Center for Birth Defect Monitoring West China Second University HospitalSichuan UniversityChengduSichuan ProvinceChina

Nerve regeneration following traumatic peripheral nerve injuries and neuropathies is a complex process modulated by diverse factors and intricate molecular *** studies have focused on factors that stimulate axonal outgrowth and myelin ***,recent studies have highlighted the pivotal role of autophagy in peripheral nerve regeneration,particularly in the context of traumatic ***,autophagy-targeting modulation has emerged as a promising therapeutic approach to enhancing peripheral nerve *** current understanding suggests that activating autophagy facilitates the rapid clearance of damaged axons and myelin sheaths,thereby enhancing neuronal survival and mitigating injury-induced oxidative stress and *** actions collectively contribute to creating a favorable microenvironment for structural and functional nerve regeneration.A range of autophagyinducing drugs and interventions have demonstrated beneficial effects in alleviating peripheral neuropathy and promoting nerve regeneration in preclinical models of traumatic peripheral nerve *** review delves into the regulation of autophagy in cell types involved in peripheral nerve regeneration,summarizing the potential drugs and interventions that can be harnessed to promote this *** hope that our review will offer novel insights and perspectives on the exploitation of autophagy pathways in the treatment of peripheral nerve injuries and neuropathies.

关键词： autophagy autophagy related genes Charcot–Marie–Tooth diseases diabetic peripheral neuropathy metformin myelination peripheral nerve injury Schwann cells sciatic nerve Wallerian degeneration

在线全文

学校读者我要写书评

暂无评论

濒危植物桫椤过氧化物酶的分离纯化与性质

重庆工商大学学报（自然科学版） 2007年第4期24卷 371-376页

作者：叶林奇向邓云长江师范学院生命科学系重庆408003

将齿叶黑桫椤叶片提取液经硫酸铵盐析、透析、DEAE-琼脂糖凝胶柱层析和Sephacryl S-200凝胶柱层析分离得到纯化的POD,其纯化倍数为26.29,回收率为27.04%;通过SDS-PAGE法测得POD的分子量为43000D;通过IEF-PAGE法测得POD的等电点为4.55;... 详细信息

将齿叶黑桫椤叶片提取液经硫酸铵盐析、透析、DEAE-琼脂糖凝胶柱层析和Sephacryl S-200凝胶柱层析分离得到纯化的POD,其纯化倍数为26.29,回收率为27.04%;通过SDS-PAGE法测得POD的分子量为43000D;通过IEF-PAGE法测得POD的等电点为4.55;齿叶黑桫椤POD最适pH在4左右;最适温度在45℃左右;Km值在最适温度45℃、最适pH4的条件下为0.07 mol/L。

关键词：齿叶黑桫椤过氧化物酶分离纯化性质