Publications by authors named "Si Yuan Wang"

Background: Vascular calcification is a crucial pathophysiological process associated with age-related cardiovascular diseases. Elabela, a recently identified peptide, has emerged as a significant player in the regulation of cardiovascular function and homeostasis. However, the effects and underlying mechanisms of Elabela on age-related vascular calcification remain largely unexplored.

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  • This study focused on the prevalence and distribution of carcinoma along the liver margin (LM) in patients with resected perihilar cholangiocarcinoma (pCCA) and aimed to improve examination methods for LM.!
  • The research analyzed 227 pCCA cases, revealing a significantly higher rate of R1 resection (indicating the presence of cancer at the margin) in the group assessed with whole-mount digital large sections compared to those assessed with smaller sections.!
  • Findings indicate that positive LM is a critical factor for poor surgical outcomes and suggest that precise examination within a 20 mm radius of the proximal ductal margin is necessary, particularly for patients with a margin of less than 5 mm, to enhance diagnostic
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Myocardial fibrosis is a typical pathological manifestation of hypertension. However, the exact role of sirtuin 7 (SIRT7) in myocardial remodeling remains largely unclear. Here, spontaneously hypertensive rats (SHRs) and angiotensin (Ang) II-induced hypertensive mice were pretreated with recombinant adeno-associated virus (rAAV)-SIRT7, copper chelator tetrathiomolybdate (TTM) or copper ionophore elesclomol, respectively.

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  • - The study investigates how poly(ADP-ribose) polymerase inhibitors (PARPis), known for causing synthetic lethality in tumor cells, also influence the tumor immune microenvironment (TIME) to help fight tumors, although the specifics are still unclear.
  • - Researchers used T-cell receptor (TCR) sequencing and various imaging techniques on clinical samples and mouse models to explore immune responses triggered by PARPis, particularly focusing on a process called immunogenic cell death (ICD) linked to pyroptosis.
  • - Results showed that PARPis increased TCR clonal expansion and promoted a more inflamed TIME with more immune cell infiltration, specifically highlighting pyroptosis as a critical mechanism through which PARPis activate the immune response against tumors
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Background: When considering hepatectomy for elderly HCC patients, it's essential to assess surgical safety and survival benefits. This study investigated the impact of preoperative frailty, assessed with the Clinical Frailty Scale (CFS), on outcomes for octogenarians undergoing HCC hepatectomy.

Methods: A retrospective cohort study of octogenarians who had hepatectomy for HCC between 2010 and 2022 at 16 hepatobiliary centers was conducted.

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Recent advances in genomic research have increasingly focused on the fat mass- and obesity-associated (FTO) gene due to its notable correlation with obesity. Initially explored for its contribution to increased body weight, FTO was later discovered to function as an m6A demethylase. This pivotal role enhances our understanding of its broader implications across various pathologies.

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Background: The extent of intrahepatic infiltration of perihilar cholangiocarcinoma (PHCC) remains unclear. This research aimed to explore the pattern and extent of intrahepatic infiltration of PHCC to guide surgical treatment and pathological research.

Materials And Methods: This study included 62 patients diagnosed with PHCC who underwent major hepatectomy.

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Dysbiosis of the gut microbiota has been implicated in hypertension, and drug-host-microbiome interactions have drawn considerable attention. However, the influence of angiotensin receptor blocker (ARB)-shaped gut microbiota on the host is not fully understood. In this work, we assessed the alterations of blood pressure (BP), vasculatures, and intestines following ARB-modified gut microbiome treatment and evaluated the changes in the intestinal transcriptome and serum metabolome in hypertensive rats.

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Background & Aims: With the rising prevalence of non-alcoholic fatty liver disease (NAFLD) as a significant etiology for hepatocellular carcinoma (HCC), lean NAFLD-HCC has emerged as a specific distinct subtype. This study sought to investigate long-term outcomes following curative-intent hepatectomy for early-stage NAFLD-HCC among lean patients compared with overweight and obese individuals.

Methods: A multicenter retrospective analysis was used to assess early-stage NAFLD-HCC patients undergoing curative-intent hepatectomy between 2009 and 2022.

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Background And Aims: The concept of textbook outcomes (TOs) has gained increased attention as a critical metric to assess the quality and success of outcomes following complex surgery. A simple yet effective scoring system was developed and validated to predict risk of not achieving textbook outcomes (non-TOs) following hepatectomy for hepatocellular carcinoma (HCC).

Methods: Using a multicenter prospectively collected database, risk factors associated with non-TO among patients who underwent hepatectomy for HCC were identified.

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Background: The diseased bile duct in bilobar congenital biliary dilatation is extensive and often requires major hepatectomy or liver transplantation associated with a higher risk. We aimed to evaluate the safety and benefit of modified mesohepatectomy, in comparison with trisectionectomy, to treat bilobar congenital biliary dilatation.

Methods: This study included 28 patients with type IV and V bilobar congenital biliary dilatation.

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  • Melittin and its derivatives are being explored to enhance gene delivery systems, particularly in improving the efficiency of recombinant adeno-associated virus (rAAV) vectors for liver cancer treatment.
  • Various melittin-derived peptides were tested for their effects on rAAV vector performance, revealing that the p5RHH-rAAV2 vector was notably effective in transducing resistant cell lines and showed promise in both in vitro and in vivo settings.
  • The study identified several mechanisms through which melittin analogs enhance gene delivery, particularly emphasizing the role of endosome acidification in facilitating transgene expression.
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Chiral imidazole-based oxidovanadium tartrates (Him)[Δ,Λ-VIV2O(,-Htart)(,-tart)(Him)]·Him (1, Htart = tartaric acid, Him = imidazole) and [Λ,Λ-VIV2O(,-tart)(Him)]·4HO (2) and their corresponding enantiomers (Him)[Λ,Δ-VIV2O(,-Htart)(,-tart)(Him)]·Him (3) and [Δ,Δ-VIV2O(,-tart)(Him)]·4HO (4) were obtained in alkaline solutions. Interestingly, the tartrates chelate with vanadium bidentately through α-alkoxy/α-hydroxy and α-carboxy groups and imidazole coordinates monodentately through nitrogen atom. It is worth noting that complexes 1 and 3 contain both protonated α-hydroxy and deprotonated α-alkoxy groups simultaneously, which have short V-O distances [1.

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Background: Downstaging of hepatocellular carcinoma (HCC) makes it possible for patients beyond the criteria to have the chance of liver transplantation (LT) and improved outcomes. Thus, a procedure to predict the prognosis of the treatment is an urgent requisite. The present study aimed to construct a comprehensive framework with clinical information and radiomics features to accurately predict the prognosis of downstaging treatment.

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Red tides occur every year in the Qinhuangdao sea area of China, including a variety of toxic algae and non-toxic algae. Toxic red tide algae have caused great damage to the marine aquaculture industry in China and seriously endangered human health, but most of non-toxic algae are important bait for marine plankton. Therefore, it is very important to identify the type of mixed red tide algae in Qinhuangdao sea area.

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  • Tumor-associated macrophages (TAMs) are crucial in modulating immune responses and help tumors evade the immune system, but their interactions with tumor cells are not fully understood.
  • The study found that interleukin-1β (IL-1β) is a key cytokine that enhances immune suppression by inhibiting CD8 T cell activity in ovarian cancer, primarily through increased expression of PD-L1 in tumor cells.
  • Targeting IL-1β with neutralizing antibodies showed promise in reducing tumor growth and improving the effectiveness of anti-PD-L1 treatment in mouse models, indicating its potential as a therapeutic target to enhance cancer immunotherapy.
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  • Diabetic foot ulcers (DFUs) are a serious complication of diabetes, linked to various factors like vascular disease, neuropathy, and wound infections.
  • Recent research is expanding to include immune, endothelial, keratinocyte, and fibroblast cells to understand their roles in wound healing.
  • The review emphasizes the importance of molecular signaling pathways and epigenetics in the healing process, aiming to offer new insights for better DFU treatment approaches.
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  • Therapy-induced senescence (TIS) in tumor cells treated with PARP inhibitors (PARPis) can negatively impact treatment effectiveness, and this study investigates whether the surrounding stromal components also experience TIS, contributing to resistance.
  • The research found that stromal fibroblasts in tumor tissues from patients treated with neoadjuvant PARPis displayed a senescence-like phenotype and created a secretory environment (SASP) that led to tumor resistance against these therapies.
  • Bepotastine, an H1-antihistamine, was shown to inhibit the SASP from PARPi-primed cancer-associated fibroblasts, suggesting that targeting this mechanism could enhance PARPi sensitivity in ovarian cancer.
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Modern air defense battlefield situations are complex and varied, requiring high-speed computing capabilities and real-time situational processing for task assignment. Current methods struggle to balance the quality and speed of assignment strategies. This paper proposes a hierarchical reinforcement learning architecture for ground-to-air confrontation (HRL-GC) and an algorithm combining model predictive control with proximal policy optimization (MPC-PPO), which effectively combines the advantages of centralized and distributed approaches.

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One novel cadmium(II)-coordination polymer [CdL(datrz)(HO)] (CP 1) is controllably synthesized by surmising the astute combination of semi-rigid tricarboxylate acid 4-(2',3'-dicarboxylphenoxy) benzoic acid (HL) and auxiliary ligand 3,5-diamino-1,2,4-triazole (datrz). Structure analysis shows that CP 1 has a two-dimensional (2D) layer structure with a 5-nodal (4) (4·6) (4·6·8) (4·6) (4·6·8) topology. Further investigations reveal that CP 1 shows superordinary water stability and good thermal stability.

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  • The study investigates the controversial practice of caudate lobectomy (CL) in patients with hilar cholangiocarcinoma (HCCA), focusing on caudate lobe invasion (CLI) using whole-mount histologic sections.
  • A total of 46 HCCA patients were analyzed, revealing that 69.6% showed evidence of CLI, with three distinct pathways of invasion identified.
  • The findings indicate a significant relationship between CLI and various tumor characteristics, underscoring the importance of assessing the fibrous connective tissue in the caudate lobe for pathology and treatment planning.
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  • * Treatments primarily involve antiangiogenic therapy and immune checkpoint inhibitors (ICIs), with ICIs becoming increasingly important due to their ability to enhance T-cell activation against tumors.
  • * While these therapies show clinical efficacy, challenges like response rates and durability remain, prompting ongoing research for new immune checkpoints and combination strategies.
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The trans-cleavage activity of CRISPR/Cas12a has been widely used in biosensing applications. However, the lack of exploration on the fundamental properties of CRISPR/Cas12a not only discourages further in-depth studies of the CRISPR/Cas12a system but also limits the design space of CRISPR/Cas12a-based applications. Herein, a "RESET" effect (random extending sequences enhance trans-cleavage activity) is discovered for the activation of CRISPR/Cas12a trans-cleavage activity.

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Background & Objective: Perineural invasion is an important biological feature of hilar cholangiocarcinoma (HCCA). We developed a whole-mount histologic large sections (WHLS) of the liver to evaluate peripheral nerve invasion (PNI) of HCCA.

Methods: Using sampling, fixation, dehydration, embedding, sectioning, hematoxylin and eosin (H&E) and immunohistochemical (IHC) staining, and scanning, the characteristics of intrahepatic and extrahepatic PNI in 20 patients with Bismuth type III and type IV HCCA were analyzed with WHLS.

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