Publications by authors named "Ruyi Ma"

Background: Rhopalosiphum padi is a major infection affecting cereal crops in the boundary area. However, continuous use of chemical pesticides has increased cases of drug resistance in its field population. Therefore, we aimed to verify the insecticidal properties of Bacillus amyloliquefaciens YJNbs21.

View Article and Find Full Text PDF

Temperature-responsive yeast cell-imprinted sensors (CIPs/AuNPs/TiCT/AuNPs/Au) were prepared based on fluorescein isothiocyanate labeled yeast cells (FITC-yeast) metal-free visible-light-induced atom transfer radical polymerization (MVL ATRP). Here, -isopropyl acrylamide (NIPAM) was used as a temperature-responsive functional monomer, α-methacrylic acid (MAA) was chosen as an auxiliary functional monomer, ,'-methylene bisacrylamide (MBA) was used as a cross-linker, and FITC-yeast was selected as both a template and photocatalyst. Under the optimal conditions, the detection range of the yeast cell-imprinted sensor toward yeast cells was 1.

View Article and Find Full Text PDF
Article Synopsis
  • Glaesserella parasuis is the main pathogen causing Glässer's disease, leading to symptoms like polyserositis, arthritis, and meningitis.
  • Autophagy has opposing effects during bacterial infections, acting as both a defense mechanism and a facilitator depending on the pathogen involved; in this case, it helps combat the aggressive effects of G. parasuis.
  • The research reveals that G. parasuis infection activates NLRP3 inflammasome pathways, increasing inflammation, but autophagy can reduce this inflammatory response by regulating the assembly and activity of these inflammasomes, hinting at potential therapeutic strategies.
View Article and Find Full Text PDF

Background: Aphid infestation adversely affects the yield and quality of crops. Rapid reproduction and insecticidal resistance have made controlling aphids in the field challenging. Therefore, the present study investigated the insecticidal property of Penicillium oxalicum (QLhf-1) and its mechanism of action against aphids, Hyalopterus arundimis Fabricius.

View Article and Find Full Text PDF

Neurodevelopmental disorders (NDDs) include various neurological disorders with high genetic heterogeneity, characterized by delayed or impaired cognition, communication, adaptive behavior, and psychomotor skills. These disorders result in significant morbidity for children, thus burdening families and healthcare/educational systems. However, there is a lack of early diagnosis and effective therapies.

View Article and Find Full Text PDF

Enterovirus 71 (EV71) is the main pathogenic virus that causes hand, foot, and mouth disease (HFMD). Studies have reported that EV71-induced infections including aseptic meningitis, acute flaccid paralysis, and even neurogenic pulmonary edema, can progress to severe neurological complications in infants, young children, and the immunosuppressed population. However, the mechanisms through which EV71 causes neurological diseases have not been fully explored.

View Article and Find Full Text PDF

Pulmonary arterial hypertension (PAH) featured a debilitating progressive disorder. Here, we intend to determine diagnosis-valuable biomarkers for PAH and decode the fundamental mechanisms of the biological function of these markers. Two mRNA microarray profiles (GSE70456 and GSE117261) and two microRNA microarray profiles (GSE55427 and GSE67597) were mined from the Gene Expression Omnibus platform.

View Article and Find Full Text PDF

Chemical profiling of natural products by high performance liquid chromatography (HPLC) was critical for understanding of their clinical bioactivities, and sample pretreatment steps have been considered as a bottleneck for analysis. Currently, concerted efforts have been made to develop sample pretreatment methods with high efficiency, low solvent and time consumptions. Here, a simple and efficient online extraction (OLE) strategy coupled with HPLC-diode array detector-quadrupole time-of-flight tandem mass spectrometry (HPLC-DAD-QTOF-MS/MS) was developed for rapid chemical profiling.

View Article and Find Full Text PDF

Vine tea with strong antioxidant activity is commonly consumed as healthy tea/beverage. However, detailed information about its antioxidants is incomplete. Here, off-line hyphenation of heart-cutting high-speed countercurrent chromatography (HSCCC) with high performance liquid chromatography-diode array detector-quadrupole time-of-flight tandem mass spectrometry (HPLC-DAD-QTOF-MS/MS) were described for systematic profiling antioxidants in vine tea.

View Article and Find Full Text PDF
Article Synopsis
  • Vine tea (Ampelopsis grossedentata) is recognized for its strong antioxidant properties, making it valuable in health beverages and herbal medicine.
  • A novel method, combining high-speed countercurrent chromatography and Sephadex LH-20 column chromatography, allows for quick and effective separation of antioxidants with minimal operational limitations.
  • The process successfully isolated seven antioxidants, six of which demonstrated over 95% purity and greater activity than ascorbic acid, highlighting this technique as an efficient approach for purifying bioactive compounds from complex sources.
View Article and Find Full Text PDF