Publications by authors named "Yan-Ling Yu"

During viral infection, the transport of various proteins between the nucleus and cytoplasm plays an important role in the viral lifecycle. Shuttling proteins are key factors in the transmission of nucleocytoplasmic information within cells and usually contain nuclear localization signals and nuclear export signals to mediate correct positioning for themselves and other proteins. The nucleocytoplasmic transport process is carried out through the nuclear pore complex on the nuclear envelope and is mediated by specific protein carriers.

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Duck plague (DP), which is caused by duck plague virus (DPV), is an infectious disease that severely harms the waterfowl breeding industry. The UL14 protein (pUL14) is a tegument protein encoded by the UL14 gene, which is located in the unique long (UL) region of the DPV genome. DPV pUL14 plays a crucial role in viral replication, likely by interacting with host and viral proteins that have yet to be identified.

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Eucalyptus was pretreated with diethylene glycol catalyzed by 0.02 mol/L CrCl for 10 min, resulting in 91 % delignification and 98 % cellulose recovery, with trace fermentation inhibitors generated. After the mild pretreatment, the accessibility and affinity of cellulase to eucalyptus was enhanced, especially since enzyme adsorption rate increased by 1.

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Duck Tembusu virus (DTMUV) belongs to the Flaviviridae family and mainly infects ducks. The genome of DTMUV is translated into a polyprotein, which is further cleaved into several protein by viral NS2B3 protease and host proteases. Crucially, the cleavage of the NS2A/2B precursor during this process is essential for the formation of replication complexes and viral packaging.

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(RA) is a notorious duck pathogen, characterized by a multitude of serotypes that exhibit no cross-reaction with one another. Moreover, RA is resistant to various antibacterial agents. Consequently, understanding the mechanisms behind resistance and identifying potential targets for drug development have become pressing needs.

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Ethylene glycol and ferric chloride pretreatment assisted by low-pressure carbon dioxide (1 MPa CO) realized the targeted deconstruction of lignocelluloses at 170 °C for 5 min, achieving 98 % cellulose recovery with removal of 92 % lignin and 90 % hemicellulose. After the pretreatment, the formation of stable platform mono-phenol components would be with the destruction of the lignin-carbohydrate complexes structure, and the surface of rice straw became rough, with a less negative charge and higher specific surface area, while the enzyme adsorption rate increased by 8.1 times.

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Flavivirus envelope protein (E) plays an important role in cellular infection, especially in virulence and antigenicity. E domain III of Tembusu virus (TMUV) is highly conserved among flaviviruses and contains four loop regions. However, the functions of the loop regions of TMUV E domain III in the viral life cycle have not yet been discovered.

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Article Synopsis
  • Scientists found a new type of virus called goose pegivirus (GPgV) that affects geese and is different from other known types of pegivirus.
  • They collected 49 sick geese from two places in China (Sichuan and Chongqing) to see if they had GPgV and other viruses.
  • Results showed that 44.9% of the geese tested positive for GPgV, marking a high infection rate and revealing that GPgV can infect geese along with other viruses.
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Iron is an essential element for the replication of most bacteria, including Riemerella anatipestifer, a Gram-negative bacterial pathogen of ducks and other birds. R. anatipestifer utilizes hemoglobin-derived hemin as an iron source; however, the mechanism by which this bacterium acquires hemin from hemoglobin is largely unknown.

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Article Synopsis
  • Scientists found a new type of virus called goose pegivirus (GPgV) that infects geese, which is different from other pegiviruses that mostly infect mammals.
  • This virus can grow well in geese and causes some health problems, like making them lose weight and even die.
  • The study is important because it helps researchers understand how pegiviruses work and shows that not all pegiviruses are harmless like the ones seen before.
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  • Duck Tembusu virus (DTMUV) is a mosquito-borne virus that significantly impacts China's poultry industry due to economic losses.
  • The study focused on understanding the cleavage mechanism of DTMUV polyprotein, identifying key amino acids crucial for the cleavage process and demonstrating that certain mutations affect viral replication.
  • The findings reveal that the cleavage sites processed by NS2B3 protease are essential for DTMUV's ability to replicate and cause disease, with modified viruses showing decreased viral titers compared to the wild type.
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Background: China is facing challenges of the shifting presentation of tuberculosis (TB) from younger to elderly due to an ageing population, longer life expectancy and reactivation disease. However, the burden of elderly TB and influence factors are not yet clear. To fill the gap, we generated a cohort study to measure the magnitude of TB incidence and associated factors among the elderly population aged 65 years and above in China.

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Article Synopsis
  • * A special part of the virus called NS5 helps in making more copies of the virus's RNA and also adds a protective cap to it.
  • * Learning more about how NS5 works might help scientists create new medicines to fight against these viruses.
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MicroRNA-10a (miRNA-10a) promotes lung cancer; however, to the best of our knowledge, its involvement in other cancer types is unknown. The present study aimed to investigate the role of miRNA-10a in oral cancer. Expression levels of miRNA-10a and glucose transporter 1 (GLUT1) in tumor tissues and adjacent healthy tissues obtained from patients with oral squamous cell carcinoma (OSCC) were detected by reverse transcription-quantitative polymerase chain reaction.

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Article Synopsis
  • Riemerella anatipestifer is a gram-negative bacterium that primarily affects birds like ducks and turkeys, and a previous mutation system was established to study it using a pheS mutant marker.
  • The researchers created a streptomycin-resistant version of R. anatipestifer ATCC11845 and utilized the rpsL gene as a new counterselectable marker to perform markerless gene deletion of RA0C_1534, which is thought to play a role in the bacterium's response to oxidative stress.
  • The study found that the R. anatipestifer strain with the deleted RA0C_1534 gene was more sensitive to oxidative stress and that this gene's expression increases when exposed
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Article Synopsis
  • * In a 2013 survey involving nearly 34,269 participants, the prevalence of active pulmonary TB was found to be 563.19 per 100,000, with significant risk factors including male sex, older age, living in rural areas, underweight, and diabetes.
  • * The findings highlight the need for targeted TB control efforts, suggesting that active case finding should focus on elderly individuals with specific risk factors to improve public health responses in this demographic.
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Article Synopsis
  • Riemerella anatipestifer (RA) is a harmful bacterial pathogen in ducks and birds, leading to high mortality rates and significant economic losses in the poultry sector.
  • The study developed a genetic manipulation method using a mutated pheS gene as a counterselectable marker, enabling the deletion of specific genes and the insertion of tags in the RA genome.
  • The new genetic techniques created in this research can help to better understand the biology and disease mechanisms of RA, and may also be applicable to other bacteria in the Flavobacteria family.
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The main characteristic of discarded flue-cured tobacco leaves is their high nicotine content. Aerobic composting is an effective method to decrease the nicotine level in tobacco leaves and stabilize tobacco wastes. However, high levels of nicotine in discarded flue-cured tobacco leaves complicate tobacco waste composting.

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Ranolazine hydrochloride sustained-release tablet (RH-ST) was prepared and its release behavior in vitro was studied. The pharmacokinetic characteristics and bioavailability in six Beagle dogs after oral administration of RH-ST and ranolazine hydrochloride common tablets (RH-CT) as reference were compared. Three kinds of matrix, hydroxypropylmethylcellulose (HPMC K4M), ethylcellulose (EC 100cp) and acrylic resins (Eudragit RL100) were selected as functional excipients to keep ranolazine hydrochloride (RH) release for 12 hours.

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Objective: To evaluate whether there was any difference on the clinical effects of Twin-block, Activator and Herbst appliances on the clinical effects of growing children with skeletal Class II malocclusion.

Methods: 60 patients with skeletal Angle Class II malocclusion were divided into three groups (Twin-block group, Activator group, Herbst group), 20 in each group. The patients of three groups were respectively treated by Twin-block, Activator and Herbst appliances.

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Apoptosis, which is usually accompanied by DNA degradation, is important not only for the homeostasis of metazoans but also for mammalian development. If DNA is not properly degraded in these processes, it can cause diverse diseases, such as anemia, cataracts, and some autoimmune diseases. A large effort has been made to identify these nucleases that are responsible for these effects.

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Foam cells are characteristic pathological cells in the lesions of atherosclerosis. Previous works have established macrophage-derived foam cell model to study the central role of the foam cells, and analyzed the protein expression profiles in foam cells. The reported in vitro foam cell model was established by incubating the human U937 cells with oxidized low-density lipoprotein.

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Widespread metastasis of hepatocellular carcinoma (HCC) was a complex cascade of events, which is still beyond full appreciation. Screening key proteins, which play a critical role in metastasis, using high-throughput proteomics approach help discover valuable biomarkers and elucidate the mechanism of metastasis. This study was to find out some metastasis candidate proteins among HCC cell lines with various metastatic potential by comparative proteomics, and then further validate the biological function of these proteins in metastasis in vitro.

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