Differential Morpho-Physiological, Ionomic, and Phytohormone Profiles, and Genome-Wide Expression Profiling Involving the Tolerance of Allohexaploid Wheat ( L.) to Nitrogen Limitation.

Common wheat ( L.) is a global staple food, while nitrogen (N) limitation severely hinders plant growth, seed yield, and grain quality of wheat. Genetic variations in the responses to low N stresses among allohexaploid wheat (AABBDD, 2 = 6 = 42) genotypes emphasize the complicated regulatory mechanisms underlying low N tolerance and N use efficiency (NUE).

The complete chloroplast genome of subsp (Primulaceae).

subsp. (Franchet) W. W.

Predicting willingness to donate blood based on machine learning: two blood donor recruitments during COVID-19 outbreaks.

Machine learning methods are a novel way to predict and rank donors' willingness to donate blood and to achieve precision recruitment, which can improve the recruitment efficiency and meet the challenge of blood shortage. We collected information about experienced blood donors via short message service (SMS) recruitment and developed 7 machine learning-based recruitment models using PyCharm-Python Environment and 13 features which were described as a method for ranking and predicting donors' intentions to donate blood with a floating number between 0 and 1. Performance of the prediction models was assessed by the Area under the receiver operating characteristic curve (AUC), accuracy, precision, recall, and F1 score in the full dataset, and by the accuracy in the four sub-datasets.

GDF11 promotes wound healing in diabetic mice via stimulating HIF-1ɑ-VEGF/SDF-1ɑ-mediated endothelial progenitor cell mobilization and neovascularization.

Non-healing diabetic wounds (DW) are a serious clinical problem that remained poorly understood. We recently found that topical application of growth differentiation factor 11 (GDF11) accelerated skin wound healing in both Type 1 DM (T1DM) and genetically engineered Type 2 diabetic db/db (T2DM) mice. In the present study, we elucidated the cellular and molecular mechanisms underlying the action of GDF11 on healing of small skin wound.

Electroacupuncture Attenuates Post-Inflammatory IBS-Associated Visceral and Somatic Hypersensitivity and Correlates With the Regulatory Mechanism of Epac1-Piezo2 Axis.

Electroacupuncture (EA) is considered to have a therapeutic effect in the relief of irritable bowel syndrome (IBS)-associated visceral hypersensitivity the reduction of the level of 5-hydroxytryptamine (5-HT) and 5-HT receptors (5-HTR). However, whether Epac1/Piezo2, as the upstream of 5-HT, is involved in this process remains unclear. We investigated whether EA at the ST36 and ST37 acupoints alleviated visceral and somatic hypersensitivity in a post-inflammatory IBS (PI-IBS) model mice the Epac1-Piezo2 axis.

Regulating the T7 RNA polymerase expression in E. coli BL21 (DE3) to provide more host options for recombinant protein production.

Escherichia coli is the most widely used bacterium in prokaryotic expression system for the production of recombinant proteins. In BL21 (DE3), the gene encoding the T7 RNA polymerase (T7 RNAP) is under control of the strong lacUV5 promoter (P), which is leakier and more active than wild-type lac promoter (P) under certain growth conditions. These characteristics are not advantageous for the production of those recombinant proteins with toxic or growth-burdened.

Asymmetric Reductive Amination/Ring-Closing Cascade: Direct Synthesis of Enantioenriched Biaryl-Bridged NH Lactams.

We report here a Ru-catalyzed enantioselective synthesis of biaryl-bridged NH lactams through asymmetric reductive amination and a spontaneous ring-closing cascade from keto esters and NHOAc with H as reductant. The reaction features broad substrate generality and high enantioselectivities (up to >99% ee). To showcase the practical utility, a highly enantioselective synthesis of 5-ethylindolobenzazepinone , a promising antimitotic agent, has been rapidly completed.

The urinary levels of CTX-II, C2C, PYD, and Helix-II increased among adults with KBD: a cross-sectional study.

Background: Kashin-Beck disease (KBD) is an endemic osteoarthropathy, and its pathogenesis is still not entirely clear. Pathologically, many KBD changes are similar to those of osteoarthritis (OA). Therefore, this study aimed to identify changes in the levels of potential urinary biomarkers for OA, including C-telopeptide of type II collagen (uCTX-II), type II collagen cleavage neoepitope (uC2C), pyridinoline (uPYD), and uHelix-II, among adults with KBD.

Modified polyoxometalate: a novel monocapped bi-supporting and reduced α-Keggin structure {PMoO[Cu(2,2'-bpy)]}[Cu(2,2'-bpy)(en)(HO)].

A novel modified polyoxometalate, {PMoO[Cu(2,2'-bpy)]}[Cu(2,2'-bpy)(en)(HO)] [2,2'-bpy is 2,2'-bipyridyl (CHN) and en is ethylenediamine (CHN)], has been synthesized hydrothermally and structurally characterized by elemental analysis, TG, IR, XPS and single-crystal X-ray diffraction. The structural analysis reveals that the compound contains the reduced Keggin polyanion [PMoO] as the parent unit, which is monocapped by [Cu(2,2'-bpy)] fragments via four bridging O atoms on an {MoO} pit and bi-supported by two [Cu(2,2'-bpy)(en)(HO)] coordination cations simultaneously. There exist strong intramolecular π-π stacking between the capping and supporting units, which play a stabilizing role during the crystallization of the compound.

MicroRNA-132 regulates total protein of Nav1.1 and Nav1.2 in the hippocampus and cortex of rat with chronic cerebral hypoperfusion.

Nav1.1 and Nav1.2 are the voltage-gated sodium channel alpha subunit1 and 2, encoded by the genes of SCN1A and SCN2A.

Tension-Induced Raman Enhancement of Graphene Membranes in the Stretched State.

The intensity ratio of the 2D band to the G band, I /I , is a good criterion in selecting high quality monolayer graphene samples; however, the evaluation of the ultimate value of I /I for intrinsic monolayer graphene is a challenging yet interesting issue. Here, an interesting tension-induced Raman enhancement phenomenon is reported in supported graphene membranes, which show a transition from the corrugated state to the stretched state in the vicinity of wells. The I /I of substrate-supported graphene membranes near wells are significantly enhanced up to 16.

Serum levels of PIICP, PIIANP, and PIIBNP are decreased in patients with an endemic osteochondropathy, Kashin-Beck disease.

Background: Kashin-Beck disease (KBD) is an endemic, chronic, degenerative osteoarthropathy. KBD is usually diagnosed by using X-ray image and clinical symptoms, lacking of serological biomarkers. The serum level of PIICP, PIIANP, and PIIBNP can specifically reflect the damage of the cartilage.

The characteristics of positive and confusing hand X-ray signs in diagnosing Kashin-Beck Disease in children in China.

When screening for Kashin-Beck disease (KBD) in children, hand X-ray examination is the most important measure. However, there is high rate of misdiagnosis because of confusing X-ray signs. We studied the characteristics of positive and confusing hand X-ray signs.

Prevalence of hand osteoarthritis and knee osteoarthritis in Kashin-Beck disease endemic areas and non Kashin-Beck disease endemic areas: A status survey.

Osteoarthritis (OA) is a considerable health problem worldwide, and the prevalence of OA varies in different regions. In this study, the prevalence of OA in Kashin-Beck disease (KBD) and non-KBD endemic areas was examined, respectively. According to monitoring data, 4 types of regions (including none, mild, moderate and high KBD endemic areas) in Heilongjiang and Jilin provinces were selected.

The role of β-adrenergic receptors and p38MAPK signaling pathways in physiological processes of cardiosphere-derived cells.

The effects of β adrenergic receptors (β-ARs) and p38 mitogen-activated protein kinases (MAPK) pathways on cardiosphere-derived cells (CDCs) are largely unknown. This study aimed to investigate the roles of β-ARs and p38MAPK pathways on the proliferation, apoptosis, and differentiation capacity of CDCs. The CDCs were treated with β1-AR blocker (Met group), β2-AR antagonist (ICI group), and p38MAPK inhibitor (SB group), non-selective β-AR blocker (PRO group), and β-AR agonist (ISO group).

Hyperbaric oxygen preconditioning inhibits skin flap apoptosis in a rat ischemia-reperfusion model.

Background: Hyperbaric oxygen (HBO) improves skin flap function and inhibits partial necrosis induced by ischemia-reperfusion (I/R) injury. Our study aimed to evaluate the mechanism underlying HBO regulation of the antiapoptosis factors associated with I/R injury of skin flaps.

Methods: The rats were divided into sham surgery, I/R, and HBO groups.

Hydrogen-rich saline attenuates skin ischemia/reperfusion induced apoptosis via regulating Bax/Bcl-2 ratio and ASK-1/JNK pathway.

Introduction: Many pathways have been reported involving the effect of hydrogen-rich saline on protecting skin flap partial necrosis induced by the inflammation of ischemia/reperfusion injury. This study focused on the influence of hydrogen-rich saline treatment on apoptosis pathway of ASK-1/JNK and Bcl-2/Bax radio in I/R injury of skin flaps.

Methods: Adult male Sprague-Dawley rats were divided into three groups.

Production of graphite chloride and bromide using microwave sparks.

Chemically modified graphite is an economical material with promising applications in its own right or as an intermediate in the synthesis of graphene. However, because of its extreme chemical inertness, to date only two methods-oxidation and fluorination-have been found which can modify graphite with high yield and large throughput. Herein, we describe a third chemical approach for the synthesis of large quantities of highly modified graphite which uses a microwave-sparks-assisted halogenation reaction.

Benzyl 5-phenyl-pyrazolo-[5,1-a]isoquino-line-1-carboxyl-ate.

In the title compound, C(25)H(18)N(2)O(2), the pyrazolo-[5,1-a]iso-quin-oline ring system is approximately planar [maximum deviation = 0.027 (2) Å] and is oriented at dihedral angles of 57.22 (6) and 71.

μ(3)-Dodeca-tungsto(V,VI)aluminato-κO:O':O''-tris-[aqua-bis-(ethyl-ene-diamine-κN,N')copper(II)].

The title compound, [AlCu(3)W(12)O(40)(C(2)H(8)N(2))(6)(H(2)O)(3)], was prepared under hydro-thermal conditions. The Cu(2+) ion displays an elongated octa-hedral geometry defined by one bridging O atom from the polyoxidoanion and a coordinated water mol-ecule in axial positions and four N atoms of the two chelating ethyl-enediamine (en) ligands in equatorial positions. The one-electron reduced [AlW(12)O(40)](6-) anion coordinates three [Cu(en)(H(2)O)](2+) fragments, generating a neutral tri-supported Keggin-type polyoxidometalate (POM).

Bis[tris-(ethyl-enediamine-κN,N')cobalt(III)] octa-kis-μ-(3)-oxido-hexa-deca-μ(2)-oxido-tetra-deca-oxido-μ(12)-tetra-oxo-silicato-octa-molybdenum(VI)hexa-vanadium(IV,V) hexa-hydrate.

The title compound, [Co(C(2)H(8)N(2))(3)](2)[SiMo(8)V(4)O(40)(VO)(2)]·6H(2)O, was prepared under hydro-thermal conditions. The asymmetric unit consists of a transition metal complex [Co(en)(3)](3+) cation (en is ethyl-enediamine), one half of an [SiMo(8)V(4)O(40)(VO)(2)](6-) heteropolyanion, two solvent water mol-ecules in general positions and two half-mol-ecules of water located on a mirror plane. In the complex cation, the Co(3+) ion is in a distorted octa-hedral coordination environment formed by six N atoms of the three chelating en ligands.

Poly[[(4,4'-bipyridine-κN)[μ(3)-(S)-2-hy-droxy-butane-dioato-κO,O:O:O]zinc] dihydrate].

In the title compound, {[Zn(C(4)H(4)O(5))(C(10)H(8)N(2))]·2H(2)O}(n), the Zn(II) ion displays a distorted tetra-gonal-pyramidal coordination environment with one hy-droxy O and three carboxyl-ate O atoms from three malate anions, and the one remaining position occupied by an N atom from a 4,4'-bipyridine ligand. The pyridine rings of the 4,4'-bipyridine ligand are twisted with respect to each other by a dihedral angle of 35.8 (2)°.

[XPS spectra of Langmuir-Blodgett films and their electroluminescence].

The coordination of monolayer of amphiphilic ligands, N, N-bis(8-quinolinyl)alkyl propanediamide, H2A(alkyl = dodecyl, H2A12; hexadecyl, H2A16) with Cu2+ at air-water interface was investigated by X-ray Photoelectron Spectroscopy (XPS) and UV-Vis spectra. The collapse pressure of the monolayers of H2A12 and H2A16 increased from 12.5 and 15.

Deregulation of the Rho GTPase, Rac1, suppresses cyclin-dependent kinase inhibitor p21(CIP1) levels in androgen-independent human prostate cancer cells.

Abnormally suppressed levels of cyclin-dependent kinase inhibitors (CKIs) are associated with aggressive androgen-independent prostate cancer and contribute to uncontrolled proliferation. The androgen-independent human prostate cancer cell lines, LNCaP-104R1, ALVA31 and PC-3, express low levels of the CKI, p21(CIP1), compared to the less-malignant, androgen-dependent LNCaP cells. We investigated the mechanism underlying this suppression by examining the role of Rho GTPases, signaling proteins that play important roles in cell cycle progression, at least in part through regulation of CKIs.