This study aimed to investigate the effects of maturity on the changes in major lipid metabolites of coffee and their associated pathways. UPLC-ESI-MS/MS was used to compare the lipidomic profiles of coffee beans at five different maturity stages. A total of 516 lipid metabolites across 26 subclasses were identified, with 111 showing significant differences.
View Article and Find Full Text PDFA driver in road hypnosis has two different types of characteristics. One is the external characteristics, which are distinct and can be directly observed. The other is internal characteristics, which are indistinctive and cannot be directly observed.
View Article and Find Full Text PDFAs one of the three important branched-chain amino acids, l-isoleucine has a wide range of applications in the fields of medicine, food, and feed. Currently, the production of l-isoleucine is well-studied by , while the autonomous and efficient production of l-isoleucine in has not been reported. Here, we developed a production strategy that combined metabolic engineering with bacterial quorum sensing to achieve the efficient production of l-isoleucine.
View Article and Find Full Text PDFObjective: This study aims to systematically evaluate the safety and efficacy of curcumin as an adjunctive treatment for patients with ulcerative colitis (UC) and to assess the methodological quality of the published studies.
Methods: A comprehensive search was conducted in PubMed, Embase, and CENTRAL databases for randomized controlled trials published up to August 18, 2023. Two independent reviewers screened studies based on predefined criteria.
Oligosaccharides are conventionally recognized as "passersby" in the small intestine. However, our research has reframed this understanding by uncovering a new function of oligosaccharide stachyose, which binds hydrophobic residues of membranous HSP90β on small intestinal epithelial cells, thus reprograming the exosomal miRNA profile. CRISPR-Cas9-mediated HSP90β knockout abolished the accumulation of stachyose on cell membrane and its regulatory effects on these miRNAs.
View Article and Find Full Text PDFMicromachines (Basel)
September 2024
In this article, we propose a novel natural light detector based on high-performance silicon nanowire (SiNW) arrays. We achieved a highly controllable and low-cost fabrication of SiNW natural light detectors by using only a conventional micromachined CMOS process. The high activity of SiNWs leads to the poor long-term stability of the SiNW device, and for this reason, we have designed a fully wrapped structure for SiNWs.
View Article and Find Full Text PDFHydrogen sulfide (HS) is considered one of the most important gaseous transmitters in the metabolic system, and the abnormal concentration of HS is associated with a variety of diseases. Up to now, it is still a challenge to develop a portable assay for HS even though the research about the detection of HS is booming. Herein, a novel bifunctional dialdehyde-cellulose fluorescent probe DAC-DPD was prepared with high selectivity and sensitivity to HS with colorimetric and fluorescent "turn-on" characteristics, and the limit of detection (LOD) of DAC-DPD for HS was 0.
View Article and Find Full Text PDFSynthetic DNAzyme-based structures enable dynamic cell regulation. However, engineering an effective and targeted DNAzyme-based structure to perform customizable multistep regulation remains largely unexplored. Herein, we designed a membrane-anchored DNAzyme-based molecular machine to implement dynamic inter- and intracellular cascade regulation, which realizes efficient T-cell/cancer cell interactions and subsequent receptor mediated cancer cell uptake.
View Article and Find Full Text PDFComb Chem High Throughput Screen
September 2024
Background: The Precancerous Lesion of Gastric Cancer (PLGC) is an early stage in the development of gastric cancer. The clinical application of HPXLD has been found to be effective in treating PLGC, but the mechanism of how HPXLD acts on PLGC is still unclear.
Objective: The objectives of this study were to reveal the molecular mechanism of how HPXLD can be used to treat PLGC and investigate this mechanism through bioinformatics and experimental validation.
China has made enormous strides to achieve high-quality development and biodiversity conservation, and the establishment of nature-protected areas is one of the essential initiatives. Caizi Lake involves a natural reserve and two national wetland parks, accommodating winter migratory waterfowl over the middle and lower Yangtze River basin in China. However, the water transfer from the Yangtze River to the Huai River (YR-HR water transfer) has modified the winter hydrological conditions of Caizi Lake, negatively affecting wintertime waterfowl habitats.
View Article and Find Full Text PDFTetracycline hydrochloride (TCH) removal from wastewater has drawn much attention recently, although it still remains challenging. Herein, Fe-based metal-organic frameworks (MOFs) incorporated nanofibrous membranes were prepared by green electrospinning and applied as adsorbents to remove TCH. The presence of MOFs noticeably improved specific surface area of the nanofibrous membranes, and adsorption capability increased with the amount of MOFs within membranes.
View Article and Find Full Text PDFis a kind of medicinal plant that has made a great contribution to human health because of the presence of bioactive metabolites: saikosaponins and flavonoids. Despite their importance, it has been a challenge to visually characterize the spatial distribution of these metabolites in situ within the plant tissue, which is essential for assessing the quality of . The development of a new technology to identify and evaluate the quality of medicinal plants is therefore necessary.
View Article and Find Full Text PDFAdvanced glycation end products (AGEs) are a spectrum of complex compounds widely found in processed foods and frequently consumed by humans. AGEs are implicated in impairing the intestinal barrier, but the underlying mechanisms remain unclear. This study investigated the effects of three types of AGEs on gene expression of tight junctions (TJs) in colorectal epithelial HT-29 cells, and observed minimal alterations in TJs expression.
View Article and Find Full Text PDFThe detection of pathogenicity and immunogenicity in Vibrio parahaemolyticus poses a significant challenge due to its threat to human health and food safety, which is strongly correlated with lipid A. Lipid A, a critical component found in most Gram-negative bacteria, functions as a hydrophobic anchor for lipopolysaccharide. V.
View Article and Find Full Text PDFThe nanodrug delivery system-based nasal spray (NDDS-NS) can bypass the blood-brain barrier and deliver drugs directly to the brain, offering unparalleled advantages in the treatment of central nervous system (CNS) diseases. However, the current design of NNDS-NS is excessively focused on mucosal absorption while neglecting the impact of nasal deposition on nose-to-brain drug delivery, resulting in an unsatisfactory nose-to-brain delivery efficiency. In this study, the effect of the dispersion medium viscosity on nasal drug deposition and nose-to-brain delivery in NDDS-NS was elucidated.
View Article and Find Full Text PDFThis study attempted to improve commercial Arabica coffee quality by integrating flavor precursors with anaerobic germination. Using raw coffee beans as materials, anaerobic germination was conducted with 5 g/100 g of flavor precursors (sucrose, glucose, fructose). The chemical composition and sensory quality of roasted coffee beans were analyzed.
View Article and Find Full Text PDFBackground: Although previous research has indicated a correlation between smoking and the mortality rate in patients with lung cancer, the impact of early life factors on this relationship remains unclear and requires further investigation. This study aimed to investigate the hypothesis that breastfeeding reduces the risk of lung cancer-related death.
Methods: The authors conducted a prospective cohort study involving 501 859 participants recruited from the United Kingdom Biobank to explore the potential association between breastfeeding and the risk of lung cancer mortality using a Cox proportional hazards model.
The disruption of per- and polyfluoroalkyl substances (PFASs) on bile acid (BA) homeostasis has raised public concerns, making the evaluation of their effects and underlying mechanisms a high priority. Although the use of perfluorooctanoic acid (PFOA) has been restricted, it remains a widespread legacy PFAS in the environment. Concurrently, the use of its prevalent short-chain alternative, perfluorobutanoic acid (PFBA), is increasing, yet the toxicity assessment of PFBA remains inadequate.
View Article and Find Full Text PDFThe biofilm-induced "relatively immune-compromised zone" creates an immunosuppressive microenvironment that is a significant contributor to refractory infections in orthopedic endophytes. Consequently, the manipulation of immune cells to co-inhibit or co-activate signaling represents a crucial strategy for the management of biofilm. This study reports the incorporation of Mn into mesoporous dopamine nanoparticles (Mnp) containing the stimulator of interferon genes (STING) pathway activator cGAMP (Mncp), and outer wrapping by M1-like macrophage cell membrane (m-Mncp).
View Article and Find Full Text PDFPurpose: Existing studies found that school closure during the COVID-19 pandemic negatively influenced adolescents' mental health. Yet, it remains unclear how adolescent mental health changed during the transition of school reopening as well as the academic-related risk and protective factors.
Methods: Immediately before (April 2020) and three months (July 2020) after school reopening, 879 adolescents in Shanghai, China (mean age = 13.