Publications by authors named "YouLi Yu"

It is well documented that immunosuppression in chickens increases the risk of secondary infections and immunodeficiencies, resulting in significant financial setbacks for the poultry sector. It is crucial to determine if polysaccharide (LBP) can counteract immune suppression in young chickens, considering its known ability to modulate immune responses. The aim of this study was to investigate the antagonistic effect and mechanism of LBP on immunosuppression in chicks.

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Article Synopsis
  • The study investigates the use of poly-lactic-co-glycolic acid (PLGA) and chitosan (CS) as delivery systems for a ribosome protein (TgRPS2) to create potential vaccines against a harmful zoonotic disease affecting humans and animals.
  • Researchers synthesized TgRPS2-PLGA and TgRPS2-CS nanospheres using novel techniques and evaluated their efficacy and toxicity before immunizing mice to assess immune responses.
  • Results indicated that the nanospheres effectively stimulated immune responses, increased specific immune cell populations, and inhibited pathogen replication in affected tissues, suggesting their potential as preventive agents against toxoplasmosis.
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Unlabelled: Infection with precipitates a spectrum of pathologies in bovines, notably necrotic pneumonia, mastitis, and arthritis, impinging upon the health and nutritional assimilation of these animals. A pivotal factor, lipocalin 2 (Lcn2), is responsive to microbial invasion, inflammatory processes, and tissue damage, the extent of which Lcn2 modulates the gut environment, however, remains unclear in response to -induced alterations. To explore the role of Lcn2 in shaping the gut milieu of mice during a 5-week period post infection, Lcn2 knockout Lcn2 mice were scrutinized for changes in the gut microbiota and metabolomic profiles.

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With the development of modern sheep raising technology, the increasing density of animals in sheep house leads to the accumulation of microbial aerosols in sheep house. It is an important prerequisite to grasp the characteristics of bacteria in aerosols in sheep house to solve the problems of air pollution and disease prevention and control in sheep house. In this study, the microorganisms present in the air of sheep houses were investigated to gain insights into the structure of bacterial communities and the prevalence of pathogenic bacteria.

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It has been demonstrated that supplementing late-gestation cow diets with NCG (N-carbamoylglutamic acid) increases the serum protein level, boosts immunological function, and increases the birth weight of the calves. However, the underlying mechanism remains unclear. In this experiment, 30 late-gestation Angus heifers almost at same conditions were chosen for this experiment.

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Invasive alien species can affect plant taxonomic and functional diversity. Multiple invasive alien species can co-invade the same plant community. However, the effects of such co-invasion on plant taxonomic and functional diversity are currently unclear.

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Invasive and native plants can coexist in the same habitat; however, the decomposition process may be altered by the mixing of invasive and native leaves. Heavy metal contamination may further alter the co-decomposition of both leaf types. This study evaluated the effects of two concentrations (35 mg·L and 70 mg·L) and three types (Pb, Cu, and combined Pb + Cu) of heavy metal contamination on the co-decomposition of leaves of the invasive tree L.

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Most of the allelopathic studies have focused on the independent allelopathy of one invasive plant, but have ignored the co-allelopathy of the two invasives. The variations in the type of acid rain can modulate the invasiveness of invasives via the changes in the allelopathy. Thus, it is vital to elucidate the allelopathy of invasives, particularly the co-allelopathy of the two invasives, under acid rain with different types, to illuminate the mechanisms driving the co-invasion of two invasives under diversified acid rain.

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Co-invasion by two invasive plant species (IPS) can occur in the same habitat. Diversified acid deposition may change the co-invasion process by altering litter decomposition and plant-soil feedback signalling. This study examined the co-decomposition of two Asteraceae IPS (Solidago canadensis L.

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This study aimed to estimate the allelopathic intensity of four Asteraceae invasive plant species (IPS), including Conyza canadensis (L.) Cronq., Erigeron annuus (L.

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Autophagic isolation and degradation of intracellular pathogens are employed by host cells as primary innate immune defense mechanisms to control intercellular infection. In this study, RNA-Seq technology was used to obtain the total mRNA from bone marrow-derived macrophages (BMDMs) infected with at 6 and 24 h after infection. One of the differential genes, GBP2b, was also investigated.

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Article Synopsis
  • - This study investigates how the co-invasion of two invasive plant species, Erigeron annuus and Solidago canadensis, impacts the resistance of native plant communities in eastern China, focusing on factors like taxonomic and functional diversity.
  • - Researchers introduced an "invasion resistance index" to measure how well native plants can withstand these invasions, highlighting the importance of native plant abundance, growth performance, and diversity in maintaining resistance.
  • - Findings indicate that all levels of invasion negatively affect native plant communities, and the two invasive species have a less detrimental effect on community resistance when they invade together than when they invade separately.
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  • - Macrobrachium rosenbergii, a vital source of crustacean seafood, is threatened by Vibrio parahaemolyticus, a pathogen causing severe losses in shrimp farming due to acute hepatopancreatic necrosis.
  • - To avoid antibiotic misuse, researchers explored antimicrobial peptides as a solution, discovering that the genetically engineered peptide bomidin effectively inhibits V. parahaemolyticus similarly to the antibiotic ampicillin.
  • - Bomidin works by damaging bacterial cell walls and membranes and interacting with DNA, making it a safe and potent alternative treatment for controlling bacterial infections in aquaculture without harming juvenile freshwater prawns.
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Unlabelled: The effect of allelopathy from invasive alien plants (IAPs) on native species is one of the main factors for their adaptation and diffusion. IAPs can have different degrees of invasion under natural succession and are distributed in numerous regions. Seed germination and seedling growth (SGe-SGr) play a crucial role in population recruitment.

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  • The laser ablation fast pulse discharge plasma spectroscopy (LA-FPDPS) technique improves the optical emission of laser-induced plasma, potentially enhancing traditional LIBS measurements.
  • Recent advancements have led to the development of a nanosecond pulse discharge circuit that significantly boosts the optical emission intensity compared to microsecond circuits.
  • The study evaluates how discharge capacitance and voltage affect soil plasma's optical emission, and it also examines the stability of timing between the laser firing, discharge, and optical emissions.
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