Publications by authors named "Zhufeng Chen"

Background: Dysregulated mitochondrial fission in synovial tissue is a key contributor to the progression of rheumatoid arthritis (RA), and echinacoside (ECH) has been shown to modulate this process in a mouse model of RA.

Objectives: This study aimed to investigate the effects of echinacoside (ECH) on the proliferation and inflammatory response of human fibroblast-like synoviocytes (MH7A cells), and to elucidate the potential underlying mechanisms.

Material And Methods: The expression and co-localization of TANK-binding kinase 1 (TBK1) and phosphorylated dynamin-related protein 1 (p-Drp1) in synovial tissues from patients with and without RA were analyzed.

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FASCICLIN-LIKE ARABINOGALACTAN PROTEINs (FLAs), a subclass of plant arabinogalactan proteins (AGPs), play diverse roles in plant development, including pollen development, secondary cell wall regulation, and root and stem growth. However, the biological functions of the majority of FLA-encoded proteins in rice remain largely unexplored, particularly their roles in root development and cell wall formation. In this study, we identified OsFLA8, a member of the FLA family, as a critical component of Casparian strip (CS) formation and salt stress tolerance in rice.

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Phosphatidylinositol 4,5-bisphosphate (PI(4,5)P) is known to be an instrumental anionic phospholipid in governing pollen germination and pollen tube growth. However, the precise functions and regulatory mechanisms of PI(4,5)P in pollen polarity establishment and germination remain poorly understood. Our previous studies demonstrated the pivotal involvement of Arabidopsis formin homology 5 (AtFH5)-dependent vesicle trafficking in polarity establishment of pollen.

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Salinity stress significantly impairs plant growth and leads to substantial yield losses in rice and other crops. WRKY transcription factors (TFs) are well-documented regulators of plant stress responses, yet their specific roles in rice salt tolerance remain largely unexplored. This study investigates the function of OsWRKY18, a rice WRKY TF with transcriptional activation activity, in salt stress adaptation.

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Maize (Zea mays L.) performs highly efficient C photosynthesis by dividing photosynthetic metabolism between mesophyll and bundle sheath cells. In vivo physiological measurements are indispensable for C photosynthesis research as photosynthetic activities are easily interrupted by leaf section or cell isolation.

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FCS-like zinc finger (FLZ) proteins are plant-specific regulatory proteins, which contain a highly conserved FLZ domain, and they play critical roles in plant growth and stress responses. Although the family has been systematically characterized in certain plants, it remains underexplored in species, which are vital sources of vegetables, edible oils, and condiments for human consumption and are highly sensitive to various abiotic stresses. Following the whole-genome triplication events (WGT) in , elucidating how the genes have expanded, differentiated, and responded to abiotic stresses is valuable for uncovering the genetic basis and functionality of these genes.

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Aluminum (Al) toxicity in acid soils poses a significant threat to rice, which exhibits highly complex genetic mechanisms for both external detoxification and internal tolerance among cereal crops. Although several genes involved Al tolerance have been identified, the molecular mechanisms underlying Al tolerance in rice remain to be fully explored. Here, we functionally characterized the gibberellin-stimulated transcription gene OsGASR1, which encodes a small cysteine-rich peptide localized to the nucleus and cytoplasm and plays a significant role in Al tolerance in rice.

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Nonalcoholic fatty liver disease (NAFLD) is a pressing public health concern. NAFLD is recognized as a disease with systemic involvement. Erectile dysfunction is a prevalent condition among men.

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Background: The Alcian blue (AB) and periodic acid Schiff (PAS) stains are representative mucus markers in gastric signet ring cell carcinoma (SRCC). They are low-cost special staining methods used to detect acidic mucus and neutral mucus, respectively. However, the clinical importance of the special combined AB and PAS stain is unclear.

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Background: Oxidative damage plays an important role in the progression of rheumatoid arthritis (RA). Emerging research evidence suggests that natural antioxidants may effectively ameliorate this disease.

Objectives: To investigate the therapeutic effect of echinacoside (ECH) in a collagen-induced arthritis (CIA) mouse model and thus elucidate the underlying molecular mechanism in RA.

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Rice (Oryza sativa L.) is one of the most important food crops worldwide. The utilisation of heterosis (hybrid vigour) has played a significant role in increasing rice yield and ensuring food supply.

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Background: The P-stalk is a conserved and vital structural element of ribosome. The eukaryotic P-stalk exists as a P0-(P1-P2) pentameric complex, in which P0 function as a base structure for incorporating the stalk onto 60S pre-ribosome. Prior studies have suggested that P0 genes are indispensable for survival in yeast and animals.

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Cold stress is a major factor limiting the production and geographical distribution of rice (Oryza sativa) varieties. However, the molecular mechanisms underlying cold tolerance remain to be elucidated. Here, we report that ornithine δ-aminotransferase (OsOAT) contributes to cold tolerance during the vegetative and reproductive development of rice.

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Objective: Medullary thyroid carcinoma (MTC) patients with distant metastases frequently present a relatively poor survival prognosis. Our main purpose was developing a nomogram model to predict distant metastases in MTC patients.

Methods: This was a retrospective study based on the Surveillance, Epidemiology, and End Results (SEER) database.

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COVID-19, caused by SARS-CoV-2, is a highly infectious disease, and clinical laboratory detection has played important roles in its diagnosis and in evaluating progression of the disease. Nucleic acid amplification testing or gene sequencing can serve as pathogenic evidence of COVID-19 diagnosing for clinically suspected cases, and dynamic monitoring of specific antibodies (IgM, IgA, and IgG) is an effective complement for false-negative detection of SARS-CoV-2 nucleic acid. Antigen tests to identify SARS-CoV-2 are recommended in the first week of infection, which is associated with high viral loads.

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The Mediator complex transduces information from the DNA-bound transcription factors to the RNA polymerase II transcriptional machinery. Research on plant Mediator subunits has primarily been performed in Arabidopsis, while very few of them have been functionally characterized in rice. In this study, the rice Mediator subunit 16, was examined.

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Rice is one of the most important food crops in the world. Breeding high-yield, multi-resistant and high-quality varieties has always been the goal of rice breeding. Rice tiller, panicle architecture and grain size are the constituent factors of yield, which are regulated by both genetic and environmental factors, including miRNAs, transcription factors, and downstream target genes.

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Objective: Burr-hole craniostomy with a closed drainage system is the most commonly used technique for chronic subdural hematoma(CSDH), but the reoperation rate for hematoma recurrence is still high. This retrospective study aimed to compare the complications and recurrence of two subdural drains placement with tips frontal-occipital position (TFOP) versus one subdural drain placement with tip frontal position(OFP) following single burr-hole evacuation for the treatment of chronic subdural hematoma(CSDH).

Methods: The authors analyzed data of all CSDH patients who underwent single burr-hole surgery with placement of subdural closed-drainage system(TFOP or OFP techniques) between January 2013 and December 2017.

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Objective: The complement alternative pathway is involved in the development of AVV. Several studies showed that AVV patients with low serum complement C3 (sC3) levels tend to have a poor prognosis. The aim of this study was to determine whether low sC3 measured at AAV onset is a risk factor for survival prognosis in patients with AVV, and further identified other potential risk factors for predicting patient survival prognosis.

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Pollen development is critical to the reproductive success of flowering plants, but how it is regulated is not well understood. Here, we isolated two allelic male-sterile mutants of OsMYB80 and investigated how OsMYB80 regulates male fertility in rice. OsMYB80 was barely expressed in tissues other than anthers, where it initiated the expression during meiosis, reached the peak at the tetrad-releasing stage and then quickly declined afterward.

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Pollen exine contains complex biopolymers of aliphatic lipids and phenolics. Abnormal development of pollen exine often leads to plant sterility. Molecular mechanisms regulating exine formation have been studied extensively but remain ambiguous.

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Large-scale production of male sterile seeds can be achieved by introducing a fertility-restoration gene linked with a pollen-killer gene into a recessive male sterile mutant. We attempted to construct this system in rice by using a late-stage pollen-specific (LSP) promoter driving the expression of maize α-amylase gene ZM-AA1. To obtain such promoters in rice, we conducted comparative RNA-seq analysis of mature pollen with meiosis anther, and compared this with the transcriptomic data of various tissues in the Rice Expression Database, resulting in 269 candidate LSP genes.

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Pollen grains are covered by exine that protects the pollen from stress and facilitates pollination. Here we isolated a male sterile mutant s13283 in rice exhibiting aborted pollen with abnormal exine and defective aperture. The mutant gene encodes a novel plasma membrane-localized legume-lectin receptor kinase that we named OsLecRK-S.

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Mitochondrial fission and fusion are important for mitochondrial function, and dynamin 1-like protein (DNM1L) is a key regulator of mitochondrial fission. We investigated the effect of mitochondrial fission on mitochondrial function and inflammation in fibroblast-like synoviocytes (FLSs) during rheumatoid arthritis (RA). DNM1L expression was determined in synovial tissues (STs) from RA and non-RA patients.

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Meiotic recombination plays a central role in maintaining genome stability and increasing genetic diversity. Although meiotic progression and core components are widely conserved across kingdoms, significant differences remain among species. Here we identify a rice gene ABERRANT GAMETOGENESIS 1 (AGG1) that controls both male and female gametogenesis.

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