Publications by authors named "Yukun Zhao"

The H9N2 subtype of avian influenza virus (AIV) causes severe immunosuppression and high mortality in view of its frequent co-infection with other pathogens, resulting in significant economic losses in the poultry industry. Current vaccines provide suboptimal immune protection against H9N2 AIV owing to antigenic variations, highlighting the urgent need for safe and effective antiviral drugs for the prevention and treatment of this virus. This study aimed to investigate the inhibitory effects of Hypericum japonicum extract on H9N2 AIV.

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Chlorogenic acid (CGA) has strong antioxidant properties. In order to improve the low maturation rate and poor vitrification freezing effect of sheep oocytes caused by oxidative stress. In this study, oocytes from 200 2-3-year-old Kazakh sheep were collected, and different concentrations of CGA were added to the maturation medium and vitrification freezing solution to study the effects of CGA on the maturation rate, cleavage rate, blastocyst rate, reactive oxygen species (ROS) and glutathione (GSH) levels, mitochondrial membrane potential, and the expression levels of oxidation and apoptosis-related genes in sheep oocytes.

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Background And Purpose: The field of hydrogen medicine has garnered extensive attention since Professor Ohsawa established that low concentrations of hydrogen (2%-4%) exert antioxidant effects. The present study aimed to evaluate the therapeutic effect of molecular hydrogen in a CUMS rat model.

Methods: A total of 40 SD rats were randomly divided into a control group, a model group, a hydrogen group, and a positive drug group.

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This study aimed to evaluate the effects of exogenous hormones on postpartum ultrasonographic changes of uterine horn in Hu sheep. 90 nulliparous Hu sheep were divided into three groups according to the number of lambs. Each group was further randomly subdivided into three groups (n = 10), a control group (sodium chloride), a PG group (cloprostol), and a PG+OT group (cloprostol + oxytocin).

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Background: The identification of efficient predictors for short-term mortality among patients with myocardial infarction (MI) in coronary care units (CCU) remains a challenge. This study seeks to investigate the potential of machine learning (ML) to improve risk prediction and develop a predictive model specifically tailored for 30-day mortality in critical MI patients.

Method: This study focused on MI patients extracted from the Medical Information Mart for Intensive Care-IV database.

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Article Synopsis
  • * The addition of Gd-ETTC MOFs enhances the photocurrent and responsivity of the PD by about 75% under UV light, while also improving performance under visible light due to effective light harvesting and hole conduction.
  • * The robust nature of GaN nanowires and Gd-ETTC MOFs allows the PD to operate continuously for 30,000 seconds and integrate with humanoid robots, enabling responsive light perception and intelligent actions.
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Article Synopsis
  • Recent advances in brain-inspired neuromorphic systems have led to the creation of artificial photonic synapses that use less power, prompting the development of a new memristor synapse utilizing gallium oxide (GaO) nanowires.
  • This memristor synapse demonstrates abilities reminiscent of biological synapses, such as plasticity, pulse facilitation, and memory learning, showcasing an impressive learning performance with a paired-pulse facilitation index of 158.
  • The successful implementation of this synapse in a humanoid robot indicates its potential for neuromorphic computing and AI applications, enabling low-energy autonomous systems that effectively integrate robotic actions with light perception.
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Rheumatoid arthritis (RA) is a chronic autoimmune disease marked by synovitis and cartilage destruction. The active compound, icariin (ICA), derived from the herb Epimedium, exhibits potent anti-inflammatory properties. However, its clinical utility is limited by its water insolubility, poor permeability, and low bioavailability.

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Article Synopsis
  • Abnormal macrophage polarization contributes to various inflammatory diseases, leading researchers to explore methods to change macrophage behavior for better treatment options.
  • Icariin (ICA) shows promise in regulating macrophage polarization, but its use is limited due to issues like poor water solubility and low effectiveness in the body.
  • The new delivery system, ADSC-derived exosomes (ADSCs-EXO) combined with ICA, demonstrates high drug loading and significantly enhances anti-inflammatory effects by effectively shifting harmful M1 macrophages to a healthier M2 type through specific signaling pathway modulation.
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The redox mediated photoelectrochemical (PEC) or electrochemical (EC) alkene oxidation process is a promising method to produce high value-added epoxides. However, due to the competitive reaction of water oxidation and overoxidation of the mediator, the utilization of the electricity is far below the ideal value, where the loss of epoxidation's faradaic efficiency (FE) is ≈50%. In this study, a Br/HOBr-mediated method is developed to achieve a near-quantitative selectivity and ≈100% FE of styrene oxide on α-FeO, in which low concentration of Br as mediator and locally generated acidic micro-environment work together to produce the higher active HOBr species.

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Swine acute diarrhea syndrome coronavirus (SADS-CoV) is a novel porcine enteric coronavirus that causes acute watery diarrhea, vomiting, and dehydration in newborn piglets. The type III interferon (IFN-λ) response serves as the primary defense against viruses that replicate in intestinal epithelial cells. However, there is currently no information available on how SADS-CoV modulates the production of IFN-λ.

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Emotions, long deemed a distinctly human characteristic, guide a repertoire of behaviors, e.g., promoting risk-aversion under negative emotional states or generosity under positive ones.

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Because of wide range of applications, the flexible artificial synapse is an indispensable part for next-generation neural morphology computing. In this work, we demonstrate a flexible synaptic device based on a lift-off (In,Ga)N thin film successfully. The synaptic device can mimic the learning, forgetting, and relearning functions of biological synapses at both flat and bent states.

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Although flexible monolithic bifunctional devices are significant for next-generation optoelectronic devices, it is quite challenging to realize them. In this work, a flexible monolithic device with both functions of emission and self-driven detection has been proposed and demonstrated successfully. By a quick electrochemical etching method, the device is created using a lift-off (In,Ga)N film detaching from the epitaxial silicon substrate.

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Due to the low-power consumption, self-driven ultraviolet (UV) photodetectors have great potentials in a broad range of applications, such as optical communication, ozone monitoring, bio-medicine, and flame detection. In this Letter, it is pretty novel to enhance the photocurrent and responsivity of self-driven UV photodetectors by (Al,Ga)N nanowire/graphene/polyvinylidene fluoride (PVDF) heterojunction successfully. Compared to those of the photodetector with only nanowire/graphene heterojunction, it is found that both the photocurrent and responsivity of the photodetector with nanowire/graphene/PVDF heterojunction can be enhanced more than 100%.

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Article Synopsis
  • Sarcopenia, a condition involving the loss of muscle mass and function, is linked to cardiovascular disease, and the serum creatinine/cystatin C (Cr/CysC) ratio may help identify low muscle mass in patients.
  • A study of 2,509 hypertensive patients indicated that a lower Cr/CysC ratio is associated with decreased risks of all-cause and cardiovascular mortality over an average follow-up of nearly 12 years.
  • The results suggest that monitoring the Cr/CysC ratio can serve as an independent risk factor for poor health outcomes in hypertensive individuals, highlighting the need for routine assessments and early treatment for muscle loss.
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Self-driven broadband photodetectors (PDs) with low-power consumption have great potential applications in the wide range of next-generation optoelectronic devices. In this study, a self-driven broadband PD responding to an ultraviolet-visible range based on gallium nitride/gold nanocluster (GaN/AuNC) core-shell nanowire heterojunctions is fabricated for the first time. By introducing the AuNCs onto the GaN nanowire surfaces, the GaN/AuNC core-shell nanowire heterojunctions can be formed efficiently.

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Article Synopsis
  • Nanomaterials like Nano-SiO, gamma-nano-AlO, alpha-nano-AlO, and nano-TiO have shown significant potential in altering the rheology and hydration behavior of class G cement, with smaller sizes resulting in unique properties.
  • The study investigated the effects of these nanomaterials on cement's physical properties at varying dosages (1-7% by weight) using a superplasticizer for better dispersion.
  • Results indicated that NS and GNA improved the rheology of the cement slurry, while ANA and NT reduced it; all nanomaterials accelerated hydration, with GNA and NS showing the most pronounced effects on hydration kinetics over time.
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Scabies is a contagious skin condition caused by , and it is always associated with an intense, unbearable, nocturnal deteriorating itch. Its presentations include classic burrows, erythema, pruritic papules, pustules, vesicles, and inflammatory nodules, with diffuse or localized distribution on the finger webs, wrist flexors, elbows, axillae, buttocks, genitalia, and breasts. Nodular scabies is an uncommon clinical variant of scabies.

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Background: Sesquiterpenes are designated as a large class of plant-derived natural active compounds, which have wide applications in industries of energy, food, cosmetics, medicine and agriculture. Neither plant extraction nor chemical synthesis can meet the massive market demands and sustainable development goals. Biosynthesis in microbial cell factories represents an eco-friendly and high-efficient way.

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Background: The most visible sign of facial aging is often seen in the periocular area. However, periocular rejuvenation remains challenging due to the particularity of periocular anatomic locations.

Aims: We aimed to evaluate the efficacy and safety of the fractional-ablative CO laser-facilitated recombinant human collagen permeation in periocular rejuvenation.

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Objective: This study aims to investigate the composition and function of the gut microbiome in long-term depression using an 8-week chronic unpredictable mild stress (CUMS) rat model.

Materials And Methods: Animals were sacrificed after either 4 weeks or 8 weeks under CUMS to mimic long-term depression in humans. The gut microbiome was analyzed to identify potential depression-related gut microbes, and the fecal metabolome was analyzed to detect their functional metabolites.

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Epoxides are significant intermediates for the manufacture of pharmaceuticals and epoxy resins. In this study, we develop a Br/BrO mediated photoelectrochemical epoxidation system on α-FeO. High selectivity (up to >99%) and faradaic efficiency (up to 82 ± 4%) for the epoxidation of a wide range of alkenes are achieved, with water as oxygen source, which are far beyond the most reported electrochemical and photoelectrochemical epoxidation performances.

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Atomically dispersed catalysts (ADCs) with a well-defined structure are theoretically desirable for a high-selectivity photocatalytic reaction. However, achieving high product selectivity remains a practical challenge for ADCs-based photocatalysts. Herein, we reveal a spin polarization effect on achieving high product selectivity (95.

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