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  • 1
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    Registration of ‘ShunMai1718’ Wheat (2017)
    Wiley
    Details
    Publication Date: 2017-09-07
    Print ISSN: 1936-5209
    Electronic ISSN: 1940-3496
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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  • 2
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    Registration of ShunMai Triplet Wheat for Flower Development Studies and Embryogenesis Research (2018)
    Wiley
    Details
    Publication Date: 2018-03-29
    Print ISSN: 1936-5209
    Electronic ISSN: 1940-3496
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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  • 3
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    Transcriptomic profiling of chemical exposure reveals roles of Yap1 in protecting yeast cells from oxidative and other types of stresses (2015)
    Wiley
    In: Yeast
    Details
    Publication Date: 2015-09-22
    Description: Transcriptomic profiles are generated by comparing wild-type and the yeast yap1 mutant to various chemicals in an attempt to establish a correlation between this gene mutation and chemical exposure. Test chemicals include ClonNAT as a non-genotoxic agent, methyl methanesulphonate (MMS) as an alkylating agent, tert -butyl hydroperoxide ( t -BHP) as an oxidative agent and the mixture of t -BHP and MMS to reflect complex natural exposure. Differentially expressed genes (DEGs) were identified and specific DEGs were obtained by excluding overlapping DEGs with the control group. In the MMS exposure group, deoxyribonucleotide biosynthetic processes were upregulated, while oxidation–reduction processes were downregulated. In the t -BHP exposure group, metabolic processes were upregulated while peroxisome and ion transport pathways were downregulated. In the mixture exposure group, the proteasome pathway was upregulated, while the aerobic respiration was downregulated. Homologue analysis of DEGs related to human diseases showed that many of DEGs were linked to cancer, ageing and neuronal degeneration. These observations confirm that the yap1 mutant is more sensitive to chemicals than wild-type cells and that the susceptible individuals carrying the YAP1 -like gene defect may enhance risk to chemical exposure. Hence, this study offers a novel approach to environmental risk assessment, based on the genetic backgrounds of susceptible individuals.
    Print ISSN: 0749-503X
    Electronic ISSN: 1097-0061
    Topics: Biology
    Published by Wiley
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  • 4
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    Chelating Energetic Material Nickel Semicarbazide 2,4,6-Trinitroresorcinol: Synthesis, Structure, and Thermal Behavior (2015)
    Wiley
    Details
    Publication Date: 2015-05-16
    Description: Through a one-pot reaction of NiCO 3 · 2Ni(OH) 2 · H 2 O, aminourea hydrochloride (SCZ · HCl) and 2,4,6-trinitroresorcinol (TNR), a halogen-free and lead-free chelating energetic material (CEM) [Ni(SCZ) 3 ]TNR was synthesized. We confirmed the structure of [Ni(SCZ) 3 ]TNR by infrared spectroscopy, X-ray diffraction, and elemental analysis. The complex is triclinic with P (2)/ n space group. Cell parameters are: a = 1.04008(17) nm, b = 1.3719(2) nm, c = 1.4897(2) nm, V = 2.0337(6) nm 3 , Z = 4. The central nickel atom is six-coordinate with three oxygen atoms of carbonyl groups and three terminal nitrogen atoms of the hydrazine groups from three SCZs to form a distorted octahedron. Differential scanning calorimetry and analysis applied to assess the thermal decomposition behavior. The DSC curve with a linear heating rate of 10 °C · min –1 shows that [Ni(SCZ) 3 ]TNR is thermally stable with one exothermic peak temperatures of 78.8 °C and two exothermic peak temperatures of 216.8 °C and 308.1 °C. The kinetic parameters were obtained by non-isothermal reaction kinetics. The equation can be expressed as ln k = 24.49–243.3 × 10 3 / RT . Moreover, the values of the critical temperature of thermal explosion, Δ S ≠ , Δ H ≠ , Δ G ≠ , and the enthalpies of formation were obtained as 206.5 °C, –145.543 J · mol –1 · K –1 , 237.18 kJ · mol –1 , 305.84 kJ · mol –1 , and –2.65 MJ · kg –1 , respectively.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
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  • 5
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    Synthesis, Crystal Structure, Thermal and Explosive Properties of [Cd(SCZ)3(H2O)](PA)2·3H2O (SCZ = Semicarbazide, PA = Picrate) (2015)
    Wiley
    Details
    Publication Date: 2015-04-15
    Description: The heptacoordinate transition metal coordination compound [Cd(SCZ) 3 (H 2 O)](PA) 2 · 3H 2 O ( 1 ) with the ligand semicarbazide (SCZ) and the counteranion picrate (PA) was synthesized and characterized by elemental analysis and FTIR spectroscopy. Single-crystal X-ray diffraction analysis revealed that 1 crystallizes in the monoclinic space group P 21/ c . The Cd 2+ ion is heptacoordinated by three SCZ groups and a water molecule. SCZ presents typical bidentate coordination modes. The thermal decomposition mechanism of 1 was studied by differential scanning calorimetry (DSC), which revealed that complex 1 exhibits three small endothermic and two large exothermic processes. The non-isothermal kinetics parameters were calculated by the Kissinger's method and Ozawa-Doyle's method, respectively. The heat of combustion was measured by oxygen bomb calorimetry. The enthalpy of formation, the critical temperature of thermal explosion, the entropy of activation (Δ S ≠ ), the enthalpy of activation (Δ H ≠ ), and the free energy of activation (Δ G ≠ ) were also calculated. Sensitivity tests revealed that 1 is insensitive to mechanical stimuli.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
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  • 6
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    Trinuclear Cobalt(II) and Zinc(II) Salamo-type Complexes: Syntheses, Crystal Structures, and Fluorescent Properties (2016)
    Wiley
    Details
    Publication Date: 2016-04-06
    Description: Two trinuclear Co II and Zn II complexes, [(CoL) 2 (OAc) 2 Co] and [(ZnL) 2 (OAc) 2 Zn], with an asymmetric Salen-type bisoxime ligand [H 2 L = 4-( N , N -diethylamine)-2,2′-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol] were synthesized and characterized by elemental analyses, IR, UV/Vis, and fluorescent spectroscopy. The crystal structures of the Co II and Zn II complexes were determined by single-crystal X-ray diffraction methods. The Co II atom is pentacoodinated by N 2 O 2 donor atoms from the (L) 2– unit and one oxygen atom from the coordinated acetate ion, resulting in a trigonal bipyramid arrangement. With the help of intermolecular hydrogen bonding C–H ··· O and C–H ··· π interactions, a self-assembled continual zigzag chain-like supramolecular structure is formed. The Zn II atom is pentacoodinated by N 2 O 2 donor atoms from the (L) 2– unit and one oxygen atom from the coordinated acetate ion, resulting in an almost regular trigonal bipyramid arrangement. A self-assembled continual 1D supramolecular chain-like structure is formed by intermolecular hydrogen bonding C–H ··· O and C–H ··· π interactions. Additionally, the photophysical properties of the Co II and Zn II complexes were discussed.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
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  • 7
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    Linking temperature sensitivity of soil CO2 release to substrate, environmental and microbial properties across alpine ecosystems (2016)
    Wiley
    Details
    Publication Date: 2016-08-27
    Description: Our knowledge of fundamental drivers of the temperature sensitivity (Q 10 ) of soil carbon dioxide (CO 2 ) release is crucial for improving the predictability of soil carbon dynamics in Earth System Models. However, patterns and determinants of Q 10 over a broad geographic scale are not fully understood, especially in alpine ecosystems. Here, we address this issue by incubating surface soils (0-10 cm) obtained from 156 sites across Tibetan alpine grasslands. Q 10 was estimated from the dynamics of the soil CO 2 release rate under varying temperatures of 5-25 o C. Structure equation modeling was performed to evaluate the relative importance of substrate, environmental and microbial properties in regulating the soil CO 2 release rate and Q 10 . Our results indicated that steppe soils had significantly lower CO 2 release rates but higher Q 10 than meadow soils. The combination of substrate properties and environmental variables could predict 52% of the variation in soil CO 2 release rate across all grassland sites, and explained 37% and 58% of the variation in Q 10 across the steppe and meadow sites, respectively. Of these, precipitation was the best predictor of soil CO 2 release rate. Basal microbial respiration rate ( B ) was the most important predictor of Q 10 in steppe soils, whereas soil pH outweighed B as the major regulator in meadow soils. These results demonstrate that carbon quality and environmental variables co-regulate Q 10 across alpine ecosystems, implying that modelers can rely on the ‘carbon-quality temperature’ hypothesis for estimating apparent temperature sensitivities, but relevant environmental factors, especially soil pH, should be considered in higher-productivity alpine regions.
    Print ISSN: 0886-6236
    Electronic ISSN: 1944-9224
    Topics: Biology , Chemistry and Pharmacology , Geography , Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
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    Synthesis, Characterization and Properties of TbIII and DyIII Coordination Compounds based on Isomeric Ligands (2015)
    Wiley
    Details
    Publication Date: 2015-07-15
    Description: Reactions of the isomeric ligands Hpztza [Hpztza = 5-(2-pyrazinyl)tetrazole-2-acetic acid] and Hpmtza [Hpmtza = 5-(2-pyramidyl)tetrazole-2-acetic acid] with TbCl 3 · 6H 2 O or DyCl 3 · 6H 2 O under solvothermal conditions afforded four mononuclear complexes, [ Ln (pztza) 2 (H 2 O) 6 ] · pztza · 3H 2 O [ Ln = Tb ( 1 ), Dy ( 2 )] and [ Ln (pmtza) 2 (H 2 O) 6 ] · Cl · 3H 2 O [ Ln = Tb ( 3 ), Dy ( 4 )]. The compounds were characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. X-ray diffraction analyses reveal that all structures are mononuclear. The four compounds are self-assembled to form three-dimensional networks by hydrogen bonds. The different positions of the nitrogen atom control the coordination mode of the ligands and further influence the crystal structures. Furthermore, the luminescence properties were also investigated at room temperature in the solid state.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
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  • 9
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    Chinese medicine Tongxinluo increases tight junction protein levels by inducing KLF5 expression in microvascular endothelial cells (2015)
    Wiley
    Details
    Publication Date: 2015-04-24
    Description: Tongxinluo (TXL) is a compound prescription formulated according to the meridian theory of traditional Chinese medicine. It may play an important role in cardiovascular protection by improving endothelial cell function. The aim of present study was to investigate whether endothelial protection with TXL is related to its regulation of tight junction protein expression. Human cardiac microvascular endothelial cells (HCMECs) were cultured and treated with 10 −7  mol l −1 angiotensin II (Ang II) and the different doses of TXL; the expression of tight junction proteins occludin, claudin, VE-cadherin and beta-catenin was determined by Western blotting and real-time PCR. Gain-of-function and loss-of-function of Krüppel-like factor 5 (KLF5) were carried out in HCMEC transfected with either KLF5 adenovirus pAd-KLF5 or siRNA specific for KLF5. Angiotensinogen transgenic mice were treated with TXL by oral administration of TXL of 0.75 g kg −1  day −1 , and immunohistochemical staining was performed with antioccludin, anticlaudin, anti-VE-cadherin, antibeta-catenin and anti-KLF5 antibodies. Ang II treatment significantly reduced the expression of tight junction proteins occludin, claudin, VE-cadherin and beta-catenin in cultured HCMECs. TXL pretreatment could abrogate the down-regulation of these tight junction proteins induced by Ang II. Ang II treatment also decreased KLF5 expression at the mRNA and protein levels; TXL pretreatment markedly reversed the inhibitory effect of Ang II on KLF5 expression. Gain-of-function and loss-of-function of KLF5 showed that KLF5 mediated the expression of tight junction proteins in HCMECs. TXL-enhanced expression of the tight junction proteins was mediated by KLF5. In angiotensinogen transgenic mice, TXL also increased the tight junction protein levels by inducing KLF5 expression. Chinese medicine TXL increases tight junction protein levels by inducing KLF5 expression in microvascular endothelial cells. Copyright © 2015 John Wiley & Sons, Ltd.
    Print ISSN: 0263-6484
    Electronic ISSN: 1099-0844
    Topics: Biology , Medicine
    Published by Wiley
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  • 10
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    Anti-apoptotic Effect of MicroRNA-30b in Early Phase of Rat Myocardial Ischemia-Reperfusion Injury Model (2015)
    Wiley
    Details
    Publication Date: 2015-04-29
    Description: ABSTRACT BACKGROUND This study aimed to investigate the effect of microRNA-30b (miR-30b) in rat myocardial ischemic-reperfusion (I/R) injury model. METHODS We randomly divided Sprague-Dawley (SD) rats (n = 80) into five groups: 1) control group; 2) miR-30b group; 3) sham-operated group; 4) I/R group and 5) I/R + miR-30b group. Real-time quantative polymerase chain reaction, immunohistochemical staining and Western blot analysis were conducted. TUNEL assay was employed for testing cardiomyocyte apoptosis. RESULTS Our results showed that miR-30b levels were down-regulated in I/R group and I/R + miR-30b group compared with sham-operated group (both P  〈 0.05). However, miR-30b level in I/R + miR-30b group was higher than I/R group ( P  〈 0.05). Markedly, the apoptotic rate in I/R group showed highest in I/R group ( P  〈 0.05). Additionally, the results illustrated that protein levels of Bcl-2, Bax and caspase-3 were at higher levels in ischemic regions in I/R group, comparing to sham-operated group (all P  〈 0.05), while Bcl-2/Bax was reduced ( P  〈 0.05). Bcl-2 level and Bcl-2/Bax were obviously increased in I/R + miR-30b group by comparison with I/R group, and expression levels of Bax and caspase-3 were down-regulated (all P  〈 0.05). We also found that in I/R + miR-30b group, KRAS level was apparently lower and p-AKT level was higher by comparing with I/R group (both P  〈 0.05). CONCLUSION Our study indicated that miR-30b overexpression had anti-apoptotic effect on early phase of rat myocardial ischemia injury model through targeting KRAS and activating the Ras/Akt pathway. This article is protected by copyright. All rights reserved
    Electronic ISSN: 0091-7419
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Published by Wiley
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