Publications by authors named "Yupeng Li"

Background: The lifting of the regional blockade in early December 2022 in Shanxi Province, China, caused an epidemic of Coronavirus disease 2019 (COVID-19). And the high allergy season from July to September each year.

Purpose: To investigate the effect of the COVID-19 epidemic on the respiratory sensitivity status of the population, to provide a scientific and effective basis for the prevention, diagnosis, condition assessment, and treatment of allergic respiratory diseases.

View Article and Find Full Text PDF

Aim: Ginsenosides have notable bioactivity in treating cardiovascular diseases, but the mechanisms of their combined use with Peroxiredoxin 6 (PRDX6) in myocardial injury remain unclear. This study explores the synergistic effects of Ginsenoside Rb1 (Gs-Rb1) and PRDX6, aiming to provide a theoretical foundation for their therapeutic potential.

Methods: We established a rat model of isoproterenol (ISO)-induced myocardial injury and observed that combination therapy was more effective than single-drug treatments, as shown by ECG monitoring and Masson staining.

View Article and Find Full Text PDF

Porcine epidemic diarrhea virus (PEDV), a swine enteropathogenic coronavirus, causing acute diarrhea, dehydration, and up to 100 % mortality in neonatal suckling piglets, leading to huge economic losses in the global swine industry. Vaccination remains the most promising and effective way to prevent and control PEDV. In this study, we produced PEDV virus-like particles (VLPs) composed of S, M, and E proteins with a baculovirus expression system and a mammalian expression system.

View Article and Find Full Text PDF

Developing a highly reliably and sensitive nanozyme-based colorimetric sensor array for biothiols analysis is critical owing to they play an essential role in diagnosing disease. The required procedure of introducing hydrogen peroxide (HO) directly into the colorimetric reaction systems in traditional biothiols array analysis limits its applicability due to its poor stability and inhibition in biomolecular activity by using the high-concentration HO. Herein, we carried out a "green" and convenient approach to propose for the biothiol detection and disease discrimination through nanozymes-based colorimetric sensor technique without adding the high-concentration HO for the first time.

View Article and Find Full Text PDF

Pulmonary fibrosis is a pathological manifestation that occurs upon lung injury and subsequence aberrant repair with poor prognosis. However, current treatment is limited and does not distinguish different disease stages. Here, we aimed to study the differential functions of Axl, a receptor tyrosine kinase expressing on both macrophages and fibroblasts, in the whole course of pulmonary fibrosis.

View Article and Find Full Text PDF

The accumulation of amyloid peptide is assumed to be one of the main causes of Alzheimer's disease . There is increasing evidence that astrocytes are the primary targets of A. A can cause abnormal synaptic glutamate, aberrant extrasynaptic glutamate, and astrocytic calcium dysregulation through astrocyte glutamate transporters facing the synaptic cleft (GLT-syn), astrocyte glutamate transporters facing the extrasynaptic space (GLT-ess), metabotropic glutamate receptors in astrocytes (mGluR), N-methyl-D-aspartate receptors in astrocytes (NMDAR), and glutamatergic gliotransmitter release (Glio-Rel).

View Article and Find Full Text PDF

A phytochemical investigation into the plants of Euphorbia esula L. has yielded 19 diterpenoids, comprising 17 jatrophane-type (1-7 and 9-18) and two ingenane-type (8 and 19). The structures of these compounds were elucidated by a combination of spectrum elucidations, quantum chemical calculations, and X-ray single crystal diffraction.

View Article and Find Full Text PDF

Purpose: To evaluate the necessity of the application of glucocorticoid (GC) in moderate COVID-19 patients, and which is the optimal choice between methylprednisolone (MP) and dexamethasone (DEX) in the clinical use of GC in different types of COVID-19 patients.

Patients And Methods: The study included patients with COVID-19 in Shanxi, China, from December 18, 2022, to March 1, 2023. The main clinical outcomes were 30-day mortality, disease exacerbations, and hospitalization days.

View Article and Find Full Text PDF
Article Synopsis
  • - This study investigated how mutations in the S protein of swine coronavirus affect innate immune responses, revealing that a specific mutant strain leads to lower double-stranded RNA levels and reduced activation of key immune responses compared to the classical strain.
  • - The research identified the 29th amino acid at the N-terminus of the S protein as a critical site for regulating stress granule formation and showed that the mutant strain inhibits immune responses through upregulation of a protein called ADAR1-p150.
  • - Additionally, the findings suggest that recent strains of SARS-CoV-2 have similar mutations that impact ADAR1-p150 expression and immune responses, highlighting the importance of the N-terminus of the S protein in coronavirus immune regulation
View Article and Find Full Text PDF
Article Synopsis
  • Edge states in topological systems are important due to their stability and unique properties, leading to the development of a superconducting-proximitized edge interferometer on the topological insulator TaPdTe.
  • This interferometer realizes the Josephson diode effect (JDE), achieving high efficiency (up to 73%) and ultra-low power consumption while operating under small magnetic fields.
  • Key features of the JDE include the presence of a second-order harmonic in the current-phase relation and antisymmetric transport, indicating the device's effectiveness for future advancements in superconducting quantum technologies.
View Article and Find Full Text PDF

The complete mitochondrial genomes of Tipula (Pterelachisus) cinereocincta mesacantha Alexander, 1934, T. (P.) legalis Alexander, 1933, T.

View Article and Find Full Text PDF

Cow milk possesses high nutritional value due to its rich array of beneficial fatty acids. It is important to understand the mechanisms involved in lipid metabolism in dairy cows. These mechanisms are driven by a complex molecular regulatory network.

View Article and Find Full Text PDF
Article Synopsis
  • Total knee arthroplasty (TKA) helps relieve pain from knee osteoarthritis, but it often leads to long-term reductions in muscle strength and function, suggesting that active resistance exercise (ARE) post-surgery may improve outcomes.
  • The study aimed to systematically assess the effects of lower-limb ARE on various factors including mobility, physical function, muscle strength, and pain in TKA patients by reviewing randomized controlled trials.
  • Results showed that ARE significantly improved walking speed, physical function (like stair climbing and getting up), muscle power, range of motion, and reduced pain compared to conventional exercise, except for one test called the 6-Minute Walk Test (6MWT), where no significant difference was observed.
View Article and Find Full Text PDF

Unlabelled: Variant (PEDV), which causes diarrhea and high mortality in piglets, has become a major pathogen, and co-epidemics of different subtypes of the virus have become a very thorny problem for the clinical prevention and control of PEDV. However, cross-protection between epidemic G2a and G2b subtype strains has not been observed, and there is currently no vaccine against both G2a and G2b strains. In this study, we demonstrate the low cross-protection between G2a and G2b strains with piglet immunization and challenge tests.

View Article and Find Full Text PDF

Stomata are epidermal openings that facilitate plant-atmosphere gas and water exchange during photosynthesis, respiration and water evaporation. SPEECHLESS (SPCH) is a master basic helix-loop-helix (bHLH) transcription factor that determines the initiation of stomatal development. It is known that blue light promotes stomatal development through the blue light photoreceptor cryptochromes (CRYs, CRY1 and CRY2).

View Article and Find Full Text PDF

Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrotic interstitial pneumonia with a poor prognosis and a pathogenesis that has not been fully elucidated. Oxidative stress is closely associated with IPF. In this research, we aimed to identify reliable diagnostic biomarkers associated with the oxidative stress through bioinformatics techniques.

View Article and Find Full Text PDF

Porcine epidemic diarrhea virus (PEDV) is an enteric coronavirus that has been the main cause of diarrhea in piglets since 2010 in China. The aim of this study was to investigate sequence variation and recombination events in the spike (S) gene of PEDV isolates from China. Thirty complete S gene sequences were obtained from PEDV-positive samples collected in six provinces in China from 2020 to 2023.

View Article and Find Full Text PDF

Developing selective CDK7 inhibitors has emerged as a promising approach for cancer treatment owing to the critical role of CDK7 in cancer progression. Starting from BTX-A51, a CK1α inhibitor that also targets CDK7 and CDK9, we designed and synthesized a series of 2,4-diaminopyrimidine derivatives as potent CDK7 inhibitors. The representative compound, , displayed significant enzymatic inhibitory activity and demonstrated a remarkable selectivity profile against a panel of kinases, including seven CDK subtypes.

View Article and Find Full Text PDF

Diarrhea is a common issue in domestic yaks (Bos grunniens) that can occur with pasture alterations and significantly impacts growth performance. Previous research has examined the microbiota of diarrhetic yaks; however, the structural changes in gut bacterial community and microbial interactions in yaks with grassland alteration-induced diarrhea remain poorly understood. To explore variations in gut microbiota homeostasis among yaks suffering from diarrhea, fecal microbiota diversity and composition were analyzed using 16 S rRNA amplicon sequencing.

View Article and Find Full Text PDF

In this study, based on the principles of bionics, we fabricated a bionic non-smooth concave pit structure on the shoulders of friction stir welding tools and detected the thermal cycling curve, downforce, and torque of the tool in the welding process. We tested the wear loss weight and analyzed the surface morphology of the shoulder surfaces after welding for 200 m. This study found that as the distance between the concave pits decreased and the number of concave pits increased, the maximum downforce, torque, and temperature in the welding process showed a decreasing trend.

View Article and Find Full Text PDF

Geopolymers, as a novel cementitious material, exhibit typical brittle failure characteristics under stress. To mitigate this brittleness, fibers can be incorporated to enhance toughness. This study investigates the effects of varying polypropylene fiber (PPF) content and fiber length on the flowability, mechanical properties, and flexural toughness of coal gangue-based geopolymers.

View Article and Find Full Text PDF

Cigarette smoking is the acknowledged major cause of cancers of the lung and oral cavity and is an established important risk factor for multiple other cancers. DNA addition products (DNA adducts) caused by cigarette smoking are critical factors in its mechanism of carcinogenesis. However, most DNA adducts detected to date in humans cannot be specifically ascribed to smoking but rather have multiple exogenous and endogenous sources.

View Article and Find Full Text PDF

The geographical variation and domestication of tree species are an important part of the theory of forest introduction, and the tracing of the germplasm is the theoretical basis for the establishment of high-quality plantations. Chinese pine ( Carr) is an important native timber tree species widely distributed in northern China, but it is unclear exactly where germplasm of the main Chinese pine plantation populations originated. Here, using two mtDNA markers, we analyzed 796 individuals representing 35 populations (matR marker), and 873 individuals representing 38 populations (nad5-1 marker) of the major natural and artificial populations in northern China, respectively (Shanxi, Hebei and Liaoning provinces).

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionbonkngeev7rslaeqji5s3f39uuvuvmh5): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once