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Thioredoxin-1 was required for CREB activity by methamphetamine in rat pheochromocytoma cells

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Thioredoxin-1 was required for CREB activity by methamphetam...

Molecular cloning,characterization and expression analysis of Sox9a and Foxl2 genes in half-smooth tongue sole(Cynoglossussemilaevis)

首届世界华人自由基生物学与自由基医学学术大会暨第五届海峡两岸三地自由基生物学与自由基医学研讨会第八届全国自由基生物学与自由基医学大会

作者： Tao Lv~(1,2),Shengdong Wang~(1,2),Jie Bai~(2,*) 1 faculty of Environmental science and Engineering,kunming university of science and technology,kunming 650500,china 2 Medical faculty,kunming university of science and technology,kunming 650500,china

Methamphetamine(METH) is a psychostimulant drug and is one of the most commonly abused agents by illicit-drug ***-1(Trx-1) is redox regulating protein and induced by various *** has not been reported that Trx-1 is ind... 详细信息

关键词： cAMP response element-binding protein methamphetamine protein kinase B phosphatidylinositol 3 kinase thioredoxin-1

来源： cnki会议评论

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Acta Oceanologica Sinica 2011年第1期30卷 68-77页

作者： DONG Xiaoli CHEN Songlin JI Xiangshan SHAO Changwei College of Fisheries Ocean University of China Qingdao 266003 China Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry ofAgriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071 China College of animal science and technology Shandong Agricultural University Taian 271018 China

Two transcription factors, Sox9a and Foxl2 were cloned from half-smooth tongue sole （Cynoglossus semilaevis）. Sox9a is a new duplication of *** Sox9 gene. The complete cDNA of Sox9a gene was 1 842 bp long coding for 487 amino acids and Foxl2 gene was 1 817 bp coding for 308 amino acids. Sox9a was expressed higher in male brain, pituitary and gonad and Foxl2 were higher in female brain, pituitary and gonad. The expression of Sox9a gene in gonads of neo-males was higher than that of normal females. Sox9a and Foxl2 were expressed higher in gastrula stage than in other stages. In the period of sex differentiation, the expression of Sox9a was first going up and then going down and Foxl2 was higher expressed at 37 dph. The highest expressions of Sox9a and Foxl2 genes occurred in nine-month and 12-month old gonad tissues, respectively. Sox9a gene was considered to have inevitable links with sex reversal, sex differentiation and cell differentiation of embryos and formation of spermatogenic ceils. Foxl2 was considered to play a role in sex differentiation, cell differentiation of embryos but not to be necessary for sex determination and sex reversal.

关键词： half-smooth tongue sole Cynoglossus semilaevis Sox9 Foxl2 real-time PCR sexreversal neo-male

Influence of Aluminum Content in γ-TiAl with L1_0 Structure during Ordering Processes

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Rare Metals 2001年第4期20卷 230-235页

作者： Timothée Nsongot1,2 Xiaodong Ni1,3 Guoliang Chen1, Keh-Minn Chang4 1) State Key Laboratory for Advanced Metals and Materials, university of science and technology Beijing, Beijing 100083, china 2) faculty of science, P. 0. Box 69, Brazzaville, Congo Univ Sci & Technol Beijing State Key Lab Adv Met & Mat Beijing 100083 Peoples R China Fac Sci Brazzaville Rep Congo Univ Sci & Technol Beijing Dept Phys Beijing 100083 Peoples R China W Virginia Univ Dept Mech & Aerosp Engn Morgantown WV 26506 USA

Based on EAM (embedded atom method) interatomic potential, the effect of aluminum content on the type of order-disorder transformation (ODT) and the structure properties (lattice constants, volume, c/a ratio and configu- ration energy) during ordering processes was investigated for γ-TiAI based alloys. Results show that for the alloys with lower than 50%Al (all composition is in atom number fraction), the ODT is the first order transition, and the second order transition for the alloys with equal or higher than 50% Al. The increase of aluminum content results in the critical temperature increasing. The aluminum content has a very little effect on the lattice constants, the volume and the c/a ratio, but has a significant effect on the configuration energy. A metastable disordered state was found for the alloys with less than 50%Al.

关键词： TiA1 order-disorder transformation long-range order

The Upper Devonian orbital cyclostratigraphy and numerical dating conodont zones from Guangxi,South china

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science china Earth sciences 2005年第1期48卷 32-41页

作者： GONG Yiming, XU Ran, TANG Zhongdao & LI Baohua faculty of Earth science, china university of Geosciences, Wuhan 430074, china Laboratory of Marine Geology, Tongji university, Shanghai 200092, china 1. faculty of Earth science China University of Geosciences 430074 Wuhan China 2. Laboratory of Marine Geology Tongji University 200092 Shanghai China

The hierarchically organized laminae, bundles, bundlesets and superbundlesets which correspond to a sub-Milankovitch, obliquity or precession, eccentricity and long eccentricity cyclothems, respectively, have been distinguished from the Upper Devonian Fras-nian-Famennian (F-F) transitional carbonate successions deposited in the carbonate-basin and slope facies of Guangxi, South china. The durations of cyclothems are 8000-10000a, 16667a or 33333a, 100000a and 400000a, respectively. The ratio of eccentricity to precession, eccentricity to obliquity, and long eccentricity to eccentricity is 1 : 6, 1 : 3 and 1 : 4 in the Devonian, respectively. Orbital cyclostratigraphical studies show that the durations of the conodont falsio-valis Zone, transitans Zone, punctate Zone, Lower hassi Zone, Upper hassi Zone, jamieae Zone, Lower rhenana Zone, Upper rhenana Zone, linguiformis Zone, Lower triangularis Zone, Middle triangularis Zone and Upper triangularis Zone are 0.4, 0.4, 0.4, 0.3, 0.4, 0.2, 0.8, 0.6, 0.8, 0.3, 0.3 and 0.3 Ma from bottom to top, respectively, and the duration of the Frasnian is 4.3 Ma. The conodont is the normal marine organism of the latest mass extinction (the latest linguiformis Zone) and the first recovery (including the whole Lower triangularis and Middle triangularis Zone) in the F-F transition. The conodont mass extinction and recovery lasted 200000-100000a and 0.6 Ma, respectively. We consider that average durations of the fossil zones calculated by reported numerical ages divided by fossil zone numbers within a stage or series or system cannot discovery complications and non-uniformity of evolutionary organisms and environments.

关键词： orbital cyclostratigraphy, conodont zone, numerical dating, mass extinction, Devonian, Guangxi, South china.

Recent advances in electrochemistry of sulfide mineral flotation

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中国有色金属学会会刊：英文版 2000年第S1期10卷 26-29页

作者： R.Woods faculty of science and technology, Griffith university, Nathan Campus, Queensland 4111, Australia Griffith Univ Fac Sci & Technol Nathan Qld 4111 Australia

The electrochemical basis for understanding the interaction of thiol collectors with sulfide minerals is reviewed. Spectroscopic techniques are being increasingly applied to augment electrochemical studies and provide unequivocal identification of species formed at mineral surfaces in flotation systems. These include X ray photoelectron, Fourier transform infrared spectroscopy and, more recently, surface enhanced Raman scattering spectroscopy. The progress that has been made in the application of electrochemical measurement to monitor and control flotation plants is also considered.

关键词： eletrochemistry of flotation sulfide mineral flotation plant

An effective and practical method for solving an unnegligible problem inherent in the current calculation model for multi-support seismic analysis of structures

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science china(Technological sciences) 2010年第7期53卷 1774-1784页

作者： LIU GuoHuan2, GUO Wei1 & LI HongNan2 1 National Engineering Laboratory for High Speed Railway Construction, School of Civil Engineering and Architecture, Central South university, Changsha 410075, china 2 faculty of Infrastructure Engineering, Dalian university of technology, Dalian 116024, china 2. faculty of Infrastructure Engineering Dalian University of Technology Dalian 116024 China1. National Engineering Laboratory for High Speed Railway Construction School of Civil Engineering and Architecture Central South University Changsha 410075 China

In the seismic analysis of extended structures subject to spatially varying motions, the displacement input model instead of acceleration model is usually adopted for accurate results. In this paper, a more detailed and comprehensive analysis of the displacement input model is carried out and the research shows that there exists an unnegligible problem in the current displacement model, which leads to the irrationality and unconvergence of some calculated results such as base shear etc. Based on the situation, an effective method named massless rigid element (MRE) method is presented to solve the problem. Moreover, the rationality and accuracy of the method are further assessed and the method is applied to a transmission tower-line system project using the commercially available structural analysis software SAP2000. The theoretical and numerical analyses indicate that the MRE approach is not only feasible with sufficient computational accuracy but also practical and can be easily implemented using the commercially available finite element software such as SAP2000.

关键词： extended structures seismic responses spatially varying motions displacement input model massless rigid element (MRE) transmission tower-line system

SOLUBILITY OF NITROGEN IN MOLTEN GRAY CAST IRON

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Acta Metallurgica Sinica(English Letters) 1992年第7期5卷 71-73页

作者： ZHAI Qijie, HU Hanqi, university of science and technology Beijing, Beijing, china HU Hanqi, Professor, faculty of Foundry, university of science and technology Beijing, Beijing 100083, china

The expressions of the dependence of nitrogen solubility in molten gray cast iron on the temperature and composition of the melt were proposed under the condition of foundry practice. Three gray cast iron specimens wi... 详细信息

关键词： gray cast iron nitrogen solubility

Cloning, sequencing and phylogenic analysis of duck prion gene

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Progress in Natural science:Materials International 2004年第9期 93-96页

作者： WANG Qigui 1,2 *, ZHANG Lei 1*, HU Xiaoxiang 1, FAN Baoliang 1, LI Ning 1**, LI Hui 2 and WU Changxin 3(1. State Key Laboratory of Agrobiotechnology, china agricultural university, Beijing 100094, china 2. College of animal science and technology, Northeast agricultural university, Harbin 150030, china 3. College of animal science and technology, china agricultural university, Beijing 100094, china) State Key Laboratory of Agrobiotechnology，china agricultural university，Beijing 100094，china College of animal science and technology，Northeast agricultural university，Harbin 150030，china State Key Laboratory of Agrobiotechnology，china agricultural university，Beijing 100094，china College of animal science and technology，Northeast agricultural university，Harbin 150030，china College of animal science and technology，china agricultural university，Beijing 100094，china

Duck prion gene was cloned and sequenced. Similar to mammalian prion protein (PrP), duck prion is encoded by a single exon of a single copy in genome, which was confirmed by Southern blot analysis. All of the structural features of mammalian PrP were also identified in the duck PrP. Compared with mammalian PrP, it exhibited a 30% of general similarity. When compared with chicken PrP, it showed a higher homology of 97%. A phylogenetic tree was constructed to trace evolution of prion gene in animals.

关键词： duck prion PrP cloning and sequencing phylogenetic tree

Evolutionary patterns of Productida (Brachiopoda) morphology during the Permian in South china

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science china Earth sciences 2008年第11期51卷 1589-1600页

作者： ZHANG Yang1 & HE WeiHong1,2 1 faculty of Earth sciences, china university of Geosciences, Wuhan 430074, china 2 Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, china university of Geosciences, Wuhan 430074, china 1. faculty of Earth sciences China University of Geosciences Wuhan 430074 China 2. Key Laboratory of Biogeology and Environmental Geology of Ministry of Education China University of Geosciences Wuhan 430074 China

The evolutionary patterns of Productida (brachiopod) morphology throughout the Permian show that while the percentage proportion of Productida (brachiopod) with strongly concentric and radial ornamentation declined from the Cisuralian to the Guadalupian, and then increased towards the Changhsingian via Wuchiapingian, the percentage proportion of Productida (brachiopod) with fine concentric and radial ornamentation distinctly increased from the Cisuralian to the Guadalupian, slightly declined towards the Wuchiapingian, and then increased towards the Changhsingian. From the Cisuralian to the Changhsingian, the percentage proportion of brachiopods with spinose ornamentation shows a persistent declining trend. The shell size generally indicates a miniaturization trend at species level during the Wuchiapingian to Changhsingian (including the transitional bed). These evolutionary patterns of brachiopod ornamentation and size are possibly related to the anoxia, food shortage, sea-level fluctuation, and change of substrate in the Permian (including the Permian-Triassic transitional interval) in South china.

关键词： brachiopod ornamentation size Permian South china