Publications by authors named "Xi He"

Messenger RNA (mRNA) therapeutics have garnered considerable attention due to their remarkable efficacy in the treatment of various diseases. The COVID-19 mRNA vaccine and RSV mRNA vaccine have been approved on the market. Due to the inherent nuclease-instability and negative charge of mRNA, delivery systems are developed to protect the mRNA from degradation and facilitate its crossing cell membrane to express functional proteins or peptides in the cytoplasm.

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The repair of diabetic bone defects is still filled with enormous challenges. Excessive reactive oxygen species (ROS) are regenerated in diabetic bone defect sites which is harmful to bone regeneration. Therefore, it's to a good strategy to scavenge the excess ROS to provide a friendly environment for diabetic bone defects repair.

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Introduction: Chinese Herbal Medicine (CHM), with its deep-rooted history and increasing global recognition, encounters significant challenges in automation for microscopic identification. These challenges stem from limitations in traditional microscopic methods, scarcity of publicly accessible datasets, imbalanced class distributions, and issues with small, unevenly distributed, incomplete, or blurred features in microscopic images.

Methods: To address these challenges, this study proposes a novel deep learning-based approach for Chinese Herbal Medicine Microscopic Identification (CHMMI).

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Article Synopsis
  • Surface sterilization of fertile eggs with 70% ethanol is commonly used in broiler breeding to prevent infections, but it can also eliminate beneficial microbes that aid embryo development.
  • A study was conducted with 460 Ross 308 fertile eggs divided into sterilized and unsterilized groups to assess the effects of this sterilization on the yolk microbiota and embryo growth.
  • Results indicated that while sterilization improved embryo development from E15 to E21, it also decreased the diversity of the yolk microbiota, resulting in lower levels of beneficial bacteria but fewer pathogens.
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Background: Tacrolimus is a substrate of CYP 3A5; to reduce the rate of liver injury and rejection in liver transplant (LT) recipients, it is feasible to optimize the administration of tacrolimus by adding CYP gene polymorphism.

Methods: We divided 151 LT recipients randomly into an optimization group and a control group. All were tested routinely for clinical indicators such as FK506 trough concentration and biochemistry, and their complications and survival were observed.

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Due to the e-waste complexity and recycling technology limitations, more and more attention has been paid to the inevitable pollution in the standardized recycling process. This study systematically explores the heavy metals (HMs) (from surface dust) pollution characteristics and exposure risk of a typical e-waste dismantling plant (EDP) in South China. Further, this study explores the real level of health risks through valence analysis of a typical HM (Cr), and seeks effective measures to reduce exposure risk through behavioral science methods.

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Introduction: It is difficult to detect acute low-tone sensorineural hearing loss (ALHL) because of only low-frequency hearing loss and atypical early symptoms. The etiology of ALHL is still elusive, and psychosomatic factors influence deafness and tinnitus. Therefore, this study aimed to clarify the correlation between psychosomatic factors and the incidence of ALHL to facilitate the prevention of ALHL.

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  • HP (Helicobacter pylori) is a common bacterium responsible for various stomach diseases, creating a need for quick and accurate diagnostic methods.
  • The newly developed diagnostic test, called HP-MCDA-LFB, combines multiple cross displacement amplification with a nanoparticle-based lateral flow biosensor, allowing detection in about one hour.
  • This test shows high sensitivity (detecting as low as 60 fg of DNA) and perfect specificity (100%) while aligning with clinical results from existing tests, making it a promising tool for diagnosing HP infections.
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The prevention and control of odor gas generated from kitchen waste are significant missions in research on environmental pollution. Because of the high complexity and variability of kitchen waste, the development of a suitable technique with high sensitivity for the accurate detection of odor gas is an urgent and core task in this frontier field. Here, a technique combining surface-enhanced Raman spectroscopy (SERS) and artificial intelligence (AI) is explored for detecting malodorous components in the leachate of kitchen waste.

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Damage to the renal tubular epithelial cells (TEC) is a key cellular event in kidney inflammation and subsequent fibrosis. However, drugs targeting renal TEC (RTEC) are limited to the alleviation of kidney fibrosis. Lethal giant larvae 1 (Lgl1) plays a key role in epithelial cell polarity and proliferation.

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Effective bone defect repair has been a tough clinical challenge due to the complexity of the bone defect microenvironment. Hydrogels loaded with bone marrow mesenchymal stem cells (BMSCs) have been widely applied for bone regeneration. However, the low survival of BMSCs at the site of transplantation and lack of sufficient osteogenic induction capacity greatly limit their applications.

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  • The study investigates the role of Frizzled5 (Fzd5), a receptor in the Wnt signaling pathway, in maintaining the health and function of intestinal epithelial cells.
  • Deleting Fzd5 in specific intestinal stem cells impairs their ability to renew and generate new cells, affecting different aspects of epithelial structure but not overall integrity.
  • Comprehensive analysis reveals that Fzd5 regulates gene expression by influencing chromatin accessibility in stem and progenitor cells, highlighting its crucial function in intestinal epithelial plasticity.
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Machine learning (ML) methods have rapidly developed in various theoretical and practical research areas, including predicting genomic breeding values for large livestock animals. However, few studies have investigated the application of ML in broiler breeding. In this study, seven different ML methods-support vector regression (SVR), random forest (RF), gradient boosting decision tree (GBDT), extreme gradient boosting (XGBoost), light gradient boosting machine (LightGBM), kernel ridge regression (KRR) and multilayer perceptron (MLP) were employed to predict the genomic breeding values of laying traits, growth and carcass traits in a yellow-feathered broiler breeding population.

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The characteristics and performance of chitosan-based colon delivery systems are significantly influenced by the method of preparation. Insect chitosan-melanin complex (CMC) may offer superior attributes over traditional shrimp and crab chitosan (CS) for colon-targeted administration. This study used dung beetle CMC as the carrier matrix and comprehensively examined the impact of various crosslinking techniques on the colonic drug delivery efficacy of microspheres, encompassing drug loading, swelling, drug release behavior, adhesion, enzymatic degradation, and absorption enhancement.

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Comprehensive two dimensional gas chromatography - time of flight mass spectrometry (GC × GC-TOFMS) with sample introduction using headspace solid phase microextraction (HS-SPME) was used for the botanical classification of raw spirits obtained from C3 (corn and sorghum) and C4 (rye, wheat and potato) plants. 45 spirit samples representing these raw materials (10 spirits produced from rye, corn, wheat and potato, and 5 from sorghum) were analyzed. Volatile compounds profiles were compared by PCA, and after removal of outliers samples were subjected to the classification model.

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Accompanied by the accelerated growth rate of chickens, the quality of chicken meat has deteriorated in recent years. Wooden breast (WB) is a severe myopathy affecting meat quality, and its pathophysiology depends on gene expression and intercellular interactions of various cell types, which are not yet fully understood. We have performed a comprehensive transcriptomic and metabolomic atlas of chicken WB muscle.

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Background: The effect of transcatheter aortic valve replacement (TAVR) on changes of computed tomography-derived fractional flow reserve (CT-FFR) values was controversial. Thus, we aimed to identify the impact of TAVR on changes of CT-FFR values, plaque characteristics, and the associated clinical impact.

Methods: This single-center observational study included 39 consecutive patients with severe aortic valve disease undergone TAVR between August 2019 and April 2023, whom were performed with preoperative and postoperative coronary CT angiography (CCTA).

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Frizzled (FZD) proteins are the principal receptors of the Wnt signaling pathway. However, whether Wnt ligands induce FZD endocytosis and degradation remains elusive. The transmembrane E3 ubiquitin ligases ZNRF3 and RNF43 promote the endocytosis and degradation of FZD receptors to inhibit Wnt signaling, and their function is antagonized by R-spondin (RSPO) proteins.

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  • The study investigates the effects of polyurethane oligomer (PU-MA) and glass flakes on the polymerization shrinkage and mechanical properties of a dental resin composite.
  • The newly developed composite was tested for volume shrinkage, water absorption, and mechanical strength after exposure to different conditions, including water immersion and thermal cycling.
  • Results show that a 20% PU-MA addition significantly reduces shrinkage, while the composite displays promising stability and mechanical properties, highlighting its potential for use in dental applications.
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Poultry, a vital economic animal, provide a high-quality protein source for human nutrition. Over the past decade, the poultry industry has witnessed substantial achievements in breeding, precision feeding, and welfare farming. However, there are still many challenges restricting the sustainable development of the poultry industry.

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Graphene oxide (GO)-based fire alarm materials have garnered extensive attention because the thermal reduction of GO to reduced GO (RGO) enables rapid fire warning. However, they suffer from poor flame retardancy, irreversible fire warning, and dependence on an external power supply. Herein, a GO/MXene/chitosan aerogel with a low density of 0.

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Pigeon coccidiosis caused by spp. is an important veterinary disease with a significant economic impact on the pigeon industry. Preventive measures for in pigeons have been hampered by the lack of extensive genetic, morphological, and biological data on the oocysts.

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Background And Aims: Total bile acid (TBA) is associated with portal hypertension, a risk factor for post-hepatectomy liver failure (PHLF). We conducted this study to clarify whether TBA is also associated with PHLF in patients with hepatocellular carcinoma (HCC).

Methods: We recruited patients with HCC and Child-Pugh class A, who underwent liver resection, and applied multivariate analyses to identify risk factors for PHLF.

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  • Endothelial cell (EC) dysfunction in the aorta contributes to atherosclerosis and complications in vascular grafts, prompting a need for research on its relationship with vascular remodeling.
  • This study developed glutamine synthetase (GS) loaded vascular grafts (GSVG) to enhance endothelial metabolism, showing significant improvements in dysfunctional human umbilical vein endothelial cells (HUVECs) in laboratory tests.
  • Results indicated that GSVG not only improved EC function but also influenced smooth muscle cell behavior, reduced inflammation, and promoted better vascular graft healing in an animal model.
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