Ionic crosslinking and Schiff base are employed to construct hydrogel wound dressings. However, the contributions of these crosslinking to the swelling behavior and adhesion performance of hydrogels are still unclear. Here, double-crosslinking chitosan hydrogel (DCH) is designed via catechol-Fe coordination and Schiff base between catechol modified chitosan and oxidized chitosan.
View Article and Find Full Text PDFTerpenes are a large variety of natural organic compounds that can enhance the resistance of plants to phytophagous insects through induction. In this study, differential expression genes and metabolites of (AC) and (SH) were screened and analyzed by transcriptomics and metabolomics. The results show that terpene biosynthesis is one of the most crucial secondary metabolic pathways in plants.
View Article and Find Full Text PDForganogenesis from somatic cells to the entire plant represents a remarkable biological phenomenon, but the underlying regulatory mechanism, particularly at the epigenetic level, remains obscure. In this work, we demonstrate the important role of histone deacetylases (HDACs) in shoot organogenesis. HDAC inhibition by trichostatin A (an HDAC inhibitor) at the callus induction stage promotes shoot formation in wounded roots and circumvents tissue wounding to initiate shoot regeneration in unwounded roots.
View Article and Find Full Text PDFAstrocytes, the most prevalent type of glial cells, have been found to play a crucial part in numerous physiological functions. By offering metabolic and structural support, astrocytes are vital for the proper functioning of the brain and regulating information processing and synaptic transmission. Astrocytes located in the medial prefrontal cortex (mPFC) are highly responsive to environmental changes and have been associated with the development of brain disorders.
View Article and Find Full Text PDFA gold-cerium bimetallic asteroid nanoplatform (CeO@GNSs/Myr-HA) was obtained by electrostatically adsorbing ultra-small cerium dioxide (CeO) onto gold nanostars (GNSs) and further loading myricetin (Myr) and hyaluronic acid (HA). This nanoplatform exhibited three types of enzymatic properties-that is, GOD (glucose-oxidase), POD (peroxidase) and GSH-Ox (glutathione oxidase) mimicking catalytic activities. These enzymatic properties work together to effectively induce apoptosis in tumor cells.
View Article and Find Full Text PDFScaffolds made from cartilage extracellular matrix are promising materials for articular cartilage repair, attributed to their intrinsic bioactivity that may promote chondrogenesis. While several cartilage matrix-based scaffolds have supported chondrogenesis and/or , it remains a challenge to balance the biological response (e.g.
View Article and Find Full Text PDFBackground: Despite the link between neuroticism trait and postnatal depression has been confirmed, little is known about the factors that influence this association. This study aimed to examine whether childbirth experience mediated the association between neuroticism trait and postnatal depression, and whether this indirect effect was moderated by perceived social support.
Methods: A cross-sectional study was conducted with 1686 women within one year postpartum from 38 hospitals in China.
Four BODIPY dyes (6a-6d) with electron-donating or electron-withdrawing groups at the -position were synthesized by the Sonogashira coupling reaction of 2,5-diethynylthieno[3,2-]thiophene with mono-iodo-BODIPY moieties. All compounds were fully characterized by H NMR and MALDI-TOF MS. Their photophysical and electrochemical properties were studied by UV-visible absorption spectroscopy, steady-state and time-resolved fluorescence spectroscopy, two-photon excitation spectroscopy and cyclic voltammetry.
View Article and Find Full Text PDFMedicine (Baltimore)
November 2024
Rationale: Primary seminal vesicle adenocarcinoma is a rare type of male reproductive system tumor, primarily manifesting as papillary adenocarcinoma. Meanwhile, clear cell adenocarcinoma (CCA) is a common malignancy in the female reproductive system. Therefore, the occurrence of CCA in the seminal vesicle, showing ovarian homology, is even rarer.
View Article and Find Full Text PDFBackground: Healthcare workers grapple with distinct challenges, inherent to their profession, making them susceptible to irregular sleep patterns and insufficient sleep, which may further impact their cardiovascular health. This study aimed to investigate the knowledge, attitude and practice (KAP) of healthcare workers concerning sleep hygiene and cardiovascular health.
Methods: A cross-sectional survey was conducted at Yancheng TCM Hospital Affiliated with Nanjing University of Chinese Medicine between July, 2023 and September, 2023.
Aims: Rhodotorula mucilaginosa (Rho) can develop a range of strategies to resist the toxicity of heavy metals. This study aimed to investigate the physiological responses and transcriptomic regulation of the fungus under different heavy metal stresses.
Methods And Results: This study applied transmission electron microscopy and RNA-seq to investigate the fungal resistance to Pb, Cd, and Cu stresses.
A biocompatible, highly sensitive, and enzyme-free glucose electrochemical sensor was developed based on a copper-cysteamine (Cu-Cy)-modified electrode. The catalytically active biocompatible material Cu-Cy was immobilized on the electrode surface by the natural polymer chitosan (CTS). The electrochemical characterization and glucose response of the Cu-Cy/CTS/glassy carbon electrode (GCE) were investigated by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and constant potential amperometry.
View Article and Find Full Text PDFLysosomes are important cellular structures for human health as centers for recycling, signaling, metabolism and stress adaptation. However, the potential role of lysosomes in stress-related emotions has long been overlooked. Here, it is found that lysosomal morphology in astrocytes is altered in the medial prefrontal cortex (mPFC) of susceptible mice after chronic social defeat stress.
View Article and Find Full Text PDFBackground: Whether individualized positive end-expiratory pressure (PEEP) improves intraoperative oxygenation and reduces postoperative pulmonary complications (PPCs) remains unclear. This systematic review and meta-analysis examined whether individualized PEEP is associated with improved intraoperative oxygenation and reduced PPCs for patients needing pneumoperitoneum with the Trendelenburg position during surgery.
Methods: Medline, Embase, the Cochrane Library, and www.
Background: Metastasis remains the leading cause of mortality among colorectal cancer (CRC) patients. Identification of new metastasis-related genes are critical to improve colorectal cancer prognosis.
Methods: Data on mRNA expression in metastatic and primary CRC was obtained from the Gene Expression Omnibus (GEO) database, including GSE81986, GSE41568, GSE71222, GSE21510, and GSE14333.
Plant Physiol Biochem
September 2024
Apple (Malus domestica Borkh.) is among the most widely planted and economically valuable horticultural crops globally. Over time, the apple fruit's cut surface undergoes browning, and the degree of browning varies among different apple varieties.
View Article and Find Full Text PDFHerein, we have designed and synthesized two novel BODIPY dimer-based small molecules, denoted as ZMH-1 and ZMH-2, covalently linked and functionalized with triphenylamine (TPA) (ZMH-1) and carbazole (C) (ZMH-2) units as the electron donor at the 3- and 5-positions of the BODIPY core, respectively. Their optical and electrochemical properties were investigated. We have fabricated all small molecule bulk heterojunction organic solar cells using these BODIPY-based small molecules as electron donors along with fullerene derivative (PCBM) and medium bandgap non-fullerene acceptor IDT-TC as electron acceptors.
View Article and Find Full Text PDFThe only reliable factor that reduces the risk of colorectal carcinogenesis is physical activity. However, the underlying mechanisms remain unclear. In this study, we examined the effects of physical activity against gut microbiota, including mucosa-associated microbiota (MAM) on azoxymethane-induced colorectal tumors in obese mice.
View Article and Find Full Text PDFEpigenetic mechanisms bridge genetic and environmental factors that contribute to the pathogenesis of major depression disorder (MDD). However, the cellular specificity and sensitivity of environmental stress on brain epitranscriptomics and its impact on depression remain unclear. Here, we found that ALKBH5, an RNA demethylase of N6-methyladenosine (m6A), was increased in MDD patients' blood and depression models.
View Article and Find Full Text PDFThe high prevalence of breast cancer is a global health concern, compounded by the lack of safe or effective treatments for its advanced stages. These facts urge the development of novel treatment strategies. Annexin A5 (ANXA5) is a natural human protein that binds with high specificity to phosphatidylserine, a phospholipid tightly maintained in the inner leaflet of the cell membrane on most healthy cells but externalized in tumor cells and the tumor vasculature.
View Article and Find Full Text PDFRomaine lettuce in the U.S. is primarily grown in California or Arizona and either processed near the growing regions (source processing) or transported long distance for processing in facilities serving distant markets (forward processing).
View Article and Find Full Text PDFSuppression of vascular cell senescence is of great significance in preventing cardiovascular diseases such as hypertension and atherosclerosis. The oxidative stress damage caused by reactive oxygen species (ROS) can lead to cellular senescence. Rapamycin (Rapa) is well known to suppress cell senescence via mammalian target of rapamycin (mTOR) pathway.
View Article and Find Full Text PDFZhonghua Wei Zhong Bing Ji Jiu Yi Xue
November 2023
Objective: To investigate the role and underlying mechanism of human myeloid differentiation protein 2 (MD2) in the process of neuronal death induced by lipopolysaccharide (LPS) by establishing an in vitro model of sepsis-associated encephalopathy (SAE) by LPS.
Methods: Healthy C57BL/6J mice at 14-18 days of gestation were selected, and brain cortical tissue was taken from fetal mice. Neurons were stimulated with 0 (control), 1, 5 and 10 g/L of LPS for 24 hours.