Publications by authors named "Qingyun Cao"

This study aimed at investigating the influences of pectic oligosaccharide (POS) on growth performance, organ indexes and intestinal health in broilers exposed to aflatoxin B (AFB). In vitro experiment was conducted to assess reactive oxygen species (ROS)-scavenging ability of POS. In vivo experiment was then implemented by allocating 320 one-day-old yellow-feathered broilers to 4 groups (8 replicates/group), according to a 2 × 2 factorial arrangement with POS addition (0 or 400 mg/kg) and AFB exposure (with or without) as the two factors.

View Article and Find Full Text PDF

This study aimed to probe if a native probiotic Enterococcus faecalis TMBC 10513 could protect the growth and intestinal health of yellow-feathered broilers against avian pathogenic Escherichia coli (APEC) challenge. In vitro bacteriostasis of E. faecalis TMBC 10513 against APEC O1 was initially investigated.

View Article and Find Full Text PDF

Hyperuricemia (HUA) has become the fourth most important health-threatening risk factor after hypertension, hyperglycemia, and hyperlipidemia, but the efficacy of existing uric acid-lowering treatments (ULT) is poor, and there is an urgent need to explore novel ULT strategies. (), a next-generation probiotic, shows promise in promoting intestinal homeostasis and metabolic regulation. Previous studies have demonstrated the potential application of in ULT, but its specific mechanism has not been elucidated.

View Article and Find Full Text PDF

Xylooligosaccharide (XOS) is a typical prebiotic; however, whether it protects chickens from enterohemorrhagic (EHEC) challenge remains unknown. This study investigated the protective effects of XOS on the growth and gut health of EHEC-challenged broilers. A total of 270 1-day-old broilers were divided into three groups (nine replicates per group): negative control (were not challenged), positive control (EHEC-challenged from days 8 to 11), and XOS (EHEC-challenged broilers supplemented with 1.

View Article and Find Full Text PDF

Nonlinear models are frequently utilized to study the growth and development of livestock and poultry, and to investigate the dynamic relationship with the intestinal microbiota changes. In this study, a total of 180 Magang geese (1-day-old) were selected and randomly divided into 6 replicates with 30 geese in each replicate. The growth performance, organ development, and intestinal flora composition of geese aged 7, 14, 21, 28, 42, 50, 60, and 70 d were observed.

View Article and Find Full Text PDF

Background: Avian pathogenic Escherichia coli (APEC) threatens both poultry production and human health. Xylooligosaccharides (XOS) may suppress pathogenic bacteria through prebiotic actions. However, the influences of single degree of polymerization (DP) on the inhibition of APEC by XOS remain unknown.

View Article and Find Full Text PDF

The importance of small bioactive peptides derived from pig spleen have been used to enhance immune responses and support intestinal health. However, there is a lack of information regarding the conformational relationship and their effects on immune function of pig spleen proteins (PSPs). The objective of this study was to prepare and assess the immunomodulatory characteristics of immunopeptides from PSP.

View Article and Find Full Text PDF

Avian pathogenic Escherichia coli (APEC) represents a key pathogen severely threatening the poultry production, as well as food safety and public health. At present, the infection by APEC is hard to be prevented and controlled, because it possesses considerable virulence factors and high insensitivity to antibiotics. Short-chain fatty acids (SCFAs), the primary metabolites of intestinal probiotics, are considered to contribute to maintain intestinal health partially through inhibiting the activity of detrimental bacteria in gut.

View Article and Find Full Text PDF

Weaning stress-induced diarrhea is a serious issue in pig production. This study aimed to evaluate the potential of glucose oxidase (GOD) as an antibiotic substitute to alleviate diarrhea and improve gut health in weaned piglets. According to a randomized complete block design, 250 piglets weaned around 21 d of age were allocated into 5 groups (5 replicates/group), which received a basal diet without or with supplemental 200 mg/kg antibiotic, 500, 1000 and 2000 U/kg GOD, respectively.

View Article and Find Full Text PDF

The gut microbiota is implicated in the pathogenesis of hyperuricemia (HUA) and gout. However, it remains unclear whether probiotics residing in the host gut, such as , can prevent HUA development. Herein, we isolated SQ001 from the cecum of HUA geese and conducted in vitro assays on uric acid (UA) and nucleoside co-culture.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigated whether xylooligosaccharide (XOS) can impact the growth and antibiotic tolerance of a strain of avian pathogenic E. coli (APEC O78).
  • The findings indicated that XOS did not inhibit the growth of APEC O78 on standard growth medium, but did affect gene expression related to xylose metabolism and cell cycle regulation.
  • Overall, XOS did not directly kill APEC O78 but may function as an antimetabolite by mimicking xylose, potentially affecting antibiotic tolerance and metabolic activities.
View Article and Find Full Text PDF

At night, clear pavement markings are essential for driver safety. Currently, markings visibility evaluation relies on the retroreflectivity, but the impact of line width is unclear. To quantify the impact of line width on visibility and to refine visibility evaluation methods, a driver visual detection experiment was designed using both qualitative and quantitative approaches.

View Article and Find Full Text PDF

This work utilizes a handheld electrospinning device to prepare a novel nanofibrous composite membrane in situ for packaging freshness. It can realize pick-and-pack and is easy to operate. The nanofibrous membrane is based on PVB as the matrix material, adding Camellia oil (CO) and ZnO-TiO composite nanoparticles (ZT) as the active material.

View Article and Find Full Text PDF

Near-field direct-writing electrospinning technology can be used to produce ordered micro/nanofiber membrane dressings. The application of this technology can simply realize the control of dressing porosity, compound different functional substances, and adjust their distribution, thus improving the defects of common dressings such as insufficient breathability, poor moisture retention performance, and single function. Herein, a novel multifunctional wound dressing was prepared to utilize near-field direct-writing electrospinning technology, in which calf skin collagen type I (CSC-I) and polycaprolactone (PCL) were used as the composite matrix, Hexafluoroisopropanol (HFIP) as the solvent, and erythromycin (ERY) as an anti-infective drug component.

View Article and Find Full Text PDF

Decoherence and imperfect control are crucial challenges for quantum technologies. Common protection strategies rely on noise temporal autocorrelation, which is not optimal if other correlations are present. We develop and demonstrate experimentally a strategy that uses the cross-correlation of two noise sources.

View Article and Find Full Text PDF

Hyperuricemia (HUA) is a metabolic syndrome caused by abnormal purine metabolism. Although recent studies have noted a relationship between the gut microbiota and gout, whether the microbiota could ameliorate HUA-associated systemic purine metabolism remains unclear. In this study, we constructed a novel model of HUA in geese and investigated the mechanism by which Lactobacillus rhamnosus GG (LGG) could have beneficial effects on HUA.

View Article and Find Full Text PDF

Geriatric assessment can aid in optimizing treatment strategies and supportive interventions for older patients with diffuse large B-cell lymphoma (DLBCL). Fondazione Italiana Linformi has recently introduced novel geriatric assessment tools, simplified Geriatric Assessment (sGA) and Elderly Prognostic Index (EPI), aimed at tailoring the treatment and predicting the outcomes for older patients with DLBCL. The objectives of this study are the validation and possible modification of the sGA and EPI in China.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated the effects of xylooligosaccharide (XOS), a prebiotic, on its ability to inhibit Salmonella Typhimurium colonization and improve gut health and growth in broiler chickens.
  • Results showed that XOS reduced the adhesion of S. Typhimurium to intestinal cells and lowered the expression of inflammatory markers and adhesion-related genes, indicating its protective role against bacterial infection.
  • Additionally, XOS supplementation in broilers challenged with S. Typhimurium improved gut morphology, increased weight gain, and reduced bacterial colonization in the intestines, highlighting its potential to enhance chicken health and growth performance.
View Article and Find Full Text PDF
Article Synopsis
  • The study explored how N-acyl homoserine lactonase (AHLase) might reduce the harmful effects of a bacterial pathogen in broiler chicks and protect their intestines.
  • An in vitro test showed that AHLase can suppress the bacteria's ability to form biofilms, move, and stick to surfaces.
  • In vivo, AHLase improved growth performance in chicks challenged with the bacteria, reduced intestinal damage, and normalized levels of certain inflammatory markers.
View Article and Find Full Text PDF
Article Synopsis
  • Serovar Typhimurium is a harmful Gram-negative bacterium that leads to gastrointestinal illnesses in humans and animals, with its infection process heavily relying on adhesins and invasins.
  • The study focused on the STM0306 protein, which was genetically mutated, revealing that its deletion significantly decreased the bacterium's ability to adhere and invade intestinal cells, alongside findings of its impact on cell inflammation.
  • Results indicated that STM0306 plays a crucial role in Typhimurium's pathogenicity by activating inflammatory responses in host cells and contributing to its overall virulence in infected mice.
View Article and Find Full Text PDF

MicroRNAs are one of the key determinants of muscle fibre development and phenotype in mammals. The preliminary experiment implied that microRNA-27a (miR-27a) might involve in regulation of muscle fibre type composition of pigs. Thereby, the present study aimed to confirm the regulatory effect of miR-27a on porcine type I muscle fibre-encoding gene (myosin heavy chain gene 7, MYH7) expression and its related mechanism.

View Article and Find Full Text PDF

Background: Salmonella Typhimurium challenge causes a huge detriment to chicken production. N-acyl homoserine lactonase (AHLase), a quorum quenching enzyme, potentially inhibits the growth and virulence of Gram-negative bacteria. However, it is unknown whether AHLase can protect chickens against S.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines how exogenous catalase (CAT) affects oxidative stress and gut microbiota in chickens exposed to deoxynivalenol (DON).
  • The experiment involved 144 one-day-old broilers divided into three groups: a control group, a DON group, and a group receiving both DON and CAT (DONC).
  • Results showed that CAT mitigated liver enlargement and oxidative damage caused by DON, improved intestinal health, and altered gut microbiota by increasing beneficial bacteria and decreasing harmful ones.
View Article and Find Full Text PDF

Glucose oxidase (GOD) could benefit intestinal health and growth performance in animals. However, it is unknown whether GOD can protect piglets against bacterial challenge. This study aimed to evaluate the protective effects of GOD on growth performance, clinical symptoms, serum parameters, and intestinal health in piglets challenged by enterotoxigenic (ETEC).

View Article and Find Full Text PDF