Publications by authors named "Yong-xia Li"

The concept of superhalogen was proposed for more than 40 years, and it has never been associated with planar tetracoordinate fluorine (ptF) species. In this work, using Li as the ligands and Cl, Br, I as the auxiliary atoms, we have designed the star-like FLiX (X = Cl, Br, I) clusters, which contain the ptF at the centers. They are all global minima (GMs) based on unbiased searches on the potential energy surfaces.

View Article and Find Full Text PDF
Article Synopsis
  • - Rhabdias kafunata is a parasitic nematode affecting toads, with its mitochondrial genome sequenced to understand its genetic structure, which is 14,068 bp long and contains 36 genes, including 12 protein-coding genes.
  • - The nucleotide composition of its mitochondria is biased toward adenine (A) and thymine (T), making up 75.5% of the genome, and the cox1 gene can be used for species identification due to its conservation.
  • - Phylogenetic analysis shows R. kafunata is part of the Rhabditidae family and is closely related to Litoditis marina and Caenorhabditis angaria, indicating its
View Article and Find Full Text PDF

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impaired social interactions, communication deficits and repetitive behaviors. A study of autistic human subjects has identified RFWD2 as a susceptibility gene for autism, and autistic patients have 3 copies of the RFWD2 gene. The role of RFWD2 as an E3 ligase in neuronal functions, and its contribution to the pathophysiology of ASD, remain unknown.

View Article and Find Full Text PDF

As one of the important probes of chemical bonding, planar tetracoordinate carbon (ptC) compounds have been receiving much attention. Compared with ptC clusters, the heavier planar tetracoordinate silicon, germanium, tin, lead (ptSi/Ge/Sn/Pb) systems are scarcer and more exotic. The 18-valence-electron (ve)-counting is one important guide, though not the only rule, for the design of planar tetra-, penta-coordinate carbon and silicon clusters.

View Article and Find Full Text PDF

Background: Acute pancreatitis (AP) is a complex and heterogeneous disease. We aimed to design and validate a prognostic nomogram for improving the prediction of short-term survival in patients with AP.

Methods: The clinical data of 632 patients with AP were obtained from the Medical Information Mart for Intensive Care (MIMIC)-IV database.

View Article and Find Full Text PDF

Background: COVID-19 is still soaring, and the new delta COVID-19 variant is on the rise and spreading around the world.

Objective: We conducted a patent analysis to better understand the therapeutic strategy developed for antivirals available for the disorders of the respiratory system.

Materials And Methods: European granted patents filed from January 2002 to June 2021 were analyzed.

View Article and Find Full Text PDF

Introduction: Stage IIB cervical cancer (CC) is an advanced stage CC with poor prognosis. Inflammatory response plays a crucial role in the development of CC, and systemic inflammatory indexes were related to the prognosis in several cancers. The objective of the study was to determine the prognostic value of platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), basophil-to-lymphocyte ratio (BLR), and systemic inflammation response index (SIRI) as inflammatory indexes in patients with stage IIB CC.

View Article and Find Full Text PDF

has been used as an effective biocontrol agent for the management of the pinewood nematode, . Tools for monitoring the colonization and parasitism patterns of are required for the development of highly effective biocontrol strategies. Because the TaqMan PCR technique is effective for quantification of species in environmental samples, a real-time PCR-based methodology was developed for absolute quantification of via internal standard addition and extrapolation of DNA quantity to hyphal length.

View Article and Find Full Text PDF

Background: As the causal agent of pine wilt disease, Bursaphelenchus xylophilus, is a serious pathogen of forest pine trees. Esteya vermicola is a nematophagous fungus of B. xylophilus and exhibits great potential as a biological control agent.

View Article and Find Full Text PDF

The salicylic acid (SA) plays a critical role during the establishment of systemic acquired resistance (SAR) in uninfected plant tissues after localised exposure to a pathogen. Here, we studied SA in Populus tomentosa infected by the plant pathogen Botryosphaeria dothidea. The accumulation of SA and methyl salicylate (MeSA) occurred in chronological order in P.

View Article and Find Full Text PDF

16 priority control polycyclic aromatic hydrocarbons (PAHs) were analyzed by GC-MS in 22 surface soil (0-20 cm) samples collected from a large steel enterprise in the north of China. The concentrations of Σ16PAHs ranged from 22.0 μg·kg to 20062.

View Article and Find Full Text PDF

Aim: Glycogen synthase kinase 3 (GSK3) regulates urine concentration by mediating the vasopressin-induced aquaporin 2 expression and water permeability, although it is unknown whether GSK3 also mediates the accumulation of the urea transporter A1 (UT-A1). The aim of this study is to investigate the effect of GSK3 on UT-A1 distribution.

Methods: Mouse inner medullary collecting duct 3 cells were transfected with UT-A1-GFP construct.

View Article and Find Full Text PDF

Th concentrations of Cu, As, Pb, Zn, Cr, Cd, Ni in interstitial water were analyzed by ICP-MS from the heavily polluted area of Xiaoqing River. A modified BCR's sequential extraction procedure was used to investigate the fraction of the heavy metals in the surface sediments. The aquatic toxicity of heavy metals in interstitial water was assessed by US Water Quality Criteria (CCC, CMC).

View Article and Find Full Text PDF

Poplar and willow plantations have become widespread in China, in order to meet national economic and environmental needs. The emergence of several pathogens is enhanced by climatic change and associated human factors. Species of Cytospora are well-known pathogens on poplar and willow, and cause stem cankers and diebacks.

View Article and Find Full Text PDF

Radiation therapy is a conventional strategy for treating advanced lung cancer yet is accompanied by serious side-effects. Its combination with other strategies, such as antiangiogenesis and gene therapy, has shown excellent prospects. As one of the potent endogenous vascular inhibitors, endostatin has been widely used in the antiangiogenic gene therapy of tumors.

View Article and Find Full Text PDF

Eryngiolide A (1), the first member of C20 diterpenoids with the skeleton deriving from a cyclododecane core fused with two γ-lactone units, was isolated from the solid culture of the edible mushroom Pleurotus eryngii. The structure of 1 was elucidated by extensive analysis of NMR spectra. Compound 1 exhibited moderate cytotoxicity against two human cancer lines in vitro.

View Article and Find Full Text PDF

Pigment epithelium-derived factor (PEDF) is the most potent inhibitor of angiogenesis in the mammalian eye, and mechanisms through which PEDF exerts its antitumour activity have recently been defined. The aim of our research was to evaluate the ability of adeno-associated virus (AAV) vector-mediated transfer of human PEDF to inhibit lewis lung carcinoma (LCC) cell growth. Intratumoural injection of AAV-PEDF caused significant reduction of the tumour volume and prolonged the survival time of mice bearing LLC cells, which were associated with decreased microvessel density and increased apoptosis in the tumours.

View Article and Find Full Text PDF