Publications by authors named "YuYu Chen"

Culm strength is crucial for rice growth, nutrition transportation, and structural resilience, which are essential for lodging resistance and stable production. In this study, we identified a rice thin culm mutant tc4, characterized by thinner culms and thicker cavity walls, resulting in weakened culm mechainical strength. Using map-based cloning, the candidate gene was isolated, and complementation and CRISPR/Cas9 experiments confirmed that a single nucleotide substitution in TC4 is responsible for the thin and brittle culm phenotype.

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Early diagnosis of tumors is becoming increasingly important in modern healthcare. As studies have demonstrated, Poly(ADP)ribose polymerase-1 (PARP-1) is overexpressed in more aggressive tumors. Consequently, sensitive detection of PARP-1 activity holds significant practical importance in clinical diagnostics and biomedical research.

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Objective: The present study is to examine whether platelet aggregation function, platelet count and mean platelet volume are indicators that related to clinicopathological characteristics of colorectal cancer.

Methods: A total of 546 patients with colorectal tumors and 118 healthy controls were enrolled, and patients with colorectal tumors were grouped according to malignancy, prognosis, recurrence and metastasis. The parameters of platelet aggregation function included max aggregation ratio, average aggregation ratio and max aggregation time were detected.

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The catalytic asymmetric diastereodivergent synthesis of axially chiral 2-alkenylindoles was established via chiral phosphoric acid-catalyzed addition reactions of C3-unsubstituted 2-alkenylindoles with -hydroxybenzyl alcohols under different reaction conditions. Using this strategy, two series of 2-alkenylindoles bearing both axial and central chirality were synthesized in a diastereodivergent fashion with moderate to high yields and good stereoselectivities (up to 99% yield, 95:5 er, >95:5 dr). Moreover, theoretical calculations were performed on the key transition states leading to different stereoisomers, which provided an in-depth understanding of the origin of the observed stereoselectivity and diastereodivergence of the products under different reaction conditions.

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Objective: To investigate the status quo of nursing practices, job burnout and social support among private hospitals in Dazhou, Sichuan Province, and perform correlational analysis.

Methods: A cross-sectional study was conducted. A total of 244 nurses were surveyed via convenience sampling from 7 private hospitals, which were randomly selected from Dazhou city.

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Consensus on bulk nanobubble stability remains elusive, despite accepted indirect evidence for longevity. We develop a nanobubble evolution model by incorporating thermal capillary wave theory that reveals that dense nanobubbles generated by acoustic cavitation tend to shrink and intensify interfacial thermal fluctuations; this significantly reduces surface tension to neutralize enhanced Laplace pressure, and secures their stabilization at a finite size. A stability criterion emerges: thermal fluctuation intensity scales superlinearly with curvature: sqrt[⟨h^{2}⟩]∝(1/R)^{n}, n>1.

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Article Synopsis
  • The study focuses on the importance of heading date in rice yield and quality, specifically aiming to adapt northern rice varieties for growth in southern climates.
  • Researchers utilized genome-wide association studies (GWAS) and gene editing on the KenDao 12 (K12) cultivar to delay flowering by about a week, leading to improved adaptability and a slight increase in yield.
  • Key findings include enhanced yield through increased effective tillers, better rice quality indicators such as grain size and fat content, and a significant contribution to better production management practices for rice farmers.
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Insects can adapt their walking patterns to complex and varied environments and retain the ability to walk even after significant changes in their physical attributes, such as amputation. Although the interleg coordination of intact insects has been widely described in previous studies, the adaptive walking patterns in free-walking insects with amputation of 1 or more legs are still unclear. The pentatomid bug Erthesina fullo exhibits a tripod gait, when walking freely on horizontal substrates, like many other insects.

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Heterotopic ossification (HO) occurs as a common complication after injury, while its risk factor and mechanism remain unclear, which restricts the development of pharmacological treatment. Clinical research suggests that diabetes mellitus (DM) patients are prone to developing HO in the tendon, but solid evidence and mechanical research are still needed. Here, we combined the clinical samples and the DM mice model to identify that disordered glycolipid metabolism aggravates the senescence of tendon-derived stem cells (TSCs) and promotes osteogenic differentiation.

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Osteoarthritis (OA) is an age-related or post-traumatic degenerative whole joint disease characterized by the rupture of articular cartilage homeostasis, the regulatory mechanisms of which remain elusive. This study identifies the essential role of heterogeneous nuclear ribonucleoprotein K (hnRNPK) in maintaining articular cartilage homeostasis. Hnrnpk expression is markedly downregulated in human and mice OA cartilage.

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Occult urothelial carcinoma (UC), particularly with mediastinal metastases, is an uncommon clinical occurrence. The present study describes the unusual case of a 70-year-old male patient who developed mediastinal metastases from an occult UC. Histological evaluations and immunohistochemical features of the mediastinal tumor were indicative of UC; however, extensive imaging failed to identify the primary urological lesion.

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Pyroptosis is a gasdermins-mediated programmed cell death that plays an essential role in immune regulation, and its role in autoimmune disease and cancer has been studied extensively. Increasing evidence shows that various microbial infections can lead to pyroptosis, associated with the occurrence and development of microbial infectious diseases. This study reviews the recent advances in pyroptosis in microbial infection, including bacterial, viral, and fungal infections.

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Article Synopsis
  • Global precipitation is intensifying because of climate change, prompting the need for advanced technology to manage water resources sustainably.
  • This research introduces a smart water control system using AI, featuring a combination of sensors for measuring water levels and quality, alongside an efficient low-cost IoT design.
  • The proposed system can cut costs by over 60% while improving measurement precision by more than 15%, aiming to conserve water resources effectively while addressing issues related to extreme weather events.
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Epithelioid inflammatory myofibroblastic sarcoma (EIMS) is a highly aggressive malignant subtype of inflammatory myofibroblastoma (IMT) associated with poor prognosis. IMT can occur in various parts of the body, most frequently in the lungs, followed by the mesentery, omentum, retroperitoneum, and pelvis, among other areas; however, it is exceptionally rare in the stomach. Anaplastic lymphoma kinase (ALK) is a critical driver of lung cancer development and is currently the "gold standard" target for non-small cell lung cancer treatment.

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  • Fracture liaison services (FLS) have shown potential benefits for hip fracture patients but their effectiveness needed further evaluation.
  • A systematic review and meta-analysis of 12 randomized controlled trials with 2,136 patients indicated that FLS improves hip function, medication adherence, reduces weakness, and lowers the rate of recurrent fractures.
  • The results suggest that implementing FLS management can significantly enhance recovery and overall outcomes for patients suffering from hip fractures.
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is a human pathogen that causes atypical pneumonia after zoonotic transmission. We confirmed that infection induces oxidative stress in human bronchial epithelial (HBEs) cells and explored how this is regulated through miR-184 and the Wnt/β-catenin signaling pathway. miR-184 mimic, miR-184 inhibitor, FOXO1 siRNA, or negative control sequence was transfected into HBE cells cultured in serum-free medium using Lipofectamine 2000.

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4-Hydroxyphenylpyruvate dioxygenase (HPPD) is an ideal target for herbicide resistance genetic engineering. In this study, a mutant MFRR-2 with mesotrione resistance was screened from an HPPD and mutant HPPD DNA shuffling library. The enzyme properties showed that although the stability of the mutant decreased in vitro, the enzyme activity of MFRR-2 at the optimum temperature of 25 °C was still equivalent to that of HPPD.

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As an active substance isolated from the root of How., rubiadin-1-methyl ether (RBM), can improve osteoporosis due to its inhibition on osteoclastogenesis. Autophagy plays a key role in osteoclastogenesis.

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Article Synopsis
  • * Researchers created a transgenic mouse model that had MAPK7 deleted in cartilage, leading to issues like kyphosis and osteopenia due to decreased MEF2C expression and activated PTEN, which disrupted normal chondrocyte growth in the spine.
  • * Pharmacologically activating AKT helped reverse some vertebral defects in these mice, providing insight into MAPK7's involvement in vertebral development and potential treatments for spinal deformities.
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Cold atmospheric plasma (CAP), a redox modulation tool, is capable of inhibiting a wide spectrum of cancers and has thus been proposed as an emerging onco-therapy. However, with incremental successes consecutively reported on the anticancer efficacy of CAP, no consensus has been made on the types of tumours sensitive to CAP due to the different intrinsic characteristics of the cells and the heterogeneous design of CAP devices and their parameter configurations. These factors have substantially hindered the clinical use of CAP as an oncotherapy.

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Proper development of the limb bud relies on the concordance of various signals, but its molecular mechanisms have not yet been fully illustrated. Here we report that heterogeneous nuclear ribonucleoprotein K (hnRNPK) is essential for limb bud development. Its ablation in the limb bud results in limbless forelimbs and severe deformities of the hindlimbs.

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Platelets are generally considered as the main functional unit of the coagulation system. However, more and more studies have confirmed that platelets also have an important relationship with tumor progression. Tumor cells can utilize platelets to promote their own infiltration and hematogenous metastasis, and platelets are activated and aggregated in this process.

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Article Synopsis
  • - Metabolic reprogramming and epigenetic modifications are key features of cancer cells, indicating that their metabolism changes throughout tumor development and progression.
  • - These metabolic changes often correlate with epigenetic alterations in enzymes, affecting how cancer cells process nutrients like glucose, lipids, and amino acids.
  • - The study highlights the impact of DNA methylation, chromatin remodeling, noncoding RNAs, and histone modification on tumor growth, suggesting that targeting these mechanisms could lead to new cancer therapies.
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A ruthenium complex [Ru(phen)(phen-5-amine)-C14] (Ru-C14) with broad-spectrum antibacterial activity was designed and synthesized; positively charged Ru-C14 could target bacteria electrostatic interactions and showed high binding effectiveness to cell membranes. In addition, Ru-C14 could act as a photosensitizer. Under 465 nm light irradiation, Ru-C14 could generate O, thus disrupting the bacterial intracellular redox balance and leading to bacterial death.

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The intervertebral disc (IVD) acts as a fibrocartilaginous joint to anchor adjacent vertebrae. Although several studies have demonstrated the cellular heterogeneity of adult mature IVDs, a single-cell transcriptomic atlas mapping early IVD formation is still lacking. Here, the authors generate a spatiotemporal and single cell-based transcriptomic atlas of human IVD formation at the embryonic stage and a comparative mouse transcript landscape.

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