Publications by authors named "Jianbo Xu"

The improved YOLOv8n algorithm is proposed for the existing target detection algorithms to solve the issues of insufficient detection accuracy and leakage due to the target scale variability and complex background interference during road surface crack detection. This algorithm introduces the convolutional block attention module (CBAM) attention mechanism and integrates it with the cross-stage partial-feature fusion (C2f) module in the backbone network. The spatial pyramid pooling faster cross-stage partial channel (SPPFCSPC) module is introduced by integrating the spatial pyramid pooling (SPP) module with the Fully Cross-Stage Partial Convolution (FCSPC) module, which efficiently extracts multi-scale features.

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Introduction: Osteoarthritis (OA) is a widespread joint disorder predominantly marked by cartilage degeneration and the hardening of subchondral bone, with a lack of disease-modifying drugs for OA treatment. Fufang Duzhong Jiangu granule (FFDZ), a Chinese medicine, has demonstrated efficacy and safety in the clinical management of OA patients. However, the precise mechanisms through which it operates are still not fully understood.

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Aim: Gastric cancer (GC) primarily metastasizes through lymphatic channels, although lymphatic metastasis remains relatively inefficient. Changes in cellular metabolism, known as metabolic reprogramming, plays a significant role in the adaptive survival of cells during the process. Therefore, understanding the mechanism underlying metabolic reprogramming in lymph node (LN) metastasis is crucial for the development of targeted therapies for advanced gastric cancer.

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Background: Osteoarthritis (OA) is a common degenerative disease caused by multiple pathological mechanisms wherein subchondral bone malfunction plays a substantial role. Recently, subchondral (SC) injection of orthobiologics has been attracting growing interest albeit the mainstream delivery method of mesenchymal stem cells (MSCs) is through intra-articular (IA). This study investigates the effect of SC injection of human umbilical cord mesenchymal stem cells (UCMSCs) on OA and its possible therapeutic mechanism compared to IA injection.

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This study aims to convert waste rock into sustainable building materials by using it as coarse and fine aggregates to prepare basalt fiber and steel fiber-reinforced concrete (BFRC and SFRC). The optimal dosages and reinforcement mechanism of fibers were determined through mechanical performance tests, P-wave velocity tests, slump tests, and SEM analysis. Experimental research shows that incorporating an appropriate amount of fiber can improve the performance of concrete, and all BFRC and SFRC specimens meet the strength requirements.

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Deep learning-based image processing methods are commonly used for bridge crack detection. Aiming at the problem of missed detections and false positives caused by light, stains, and dense cracks during detection, this paper proposes a bridge crack detection algorithm based on the improved YOLOv8n model. Firstly, enhancing the model's feature extraction capabilities by incorporating the global attention mechanism into the Backbone and Neck to gather additional crack characterization information.

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Patients with multiple comorbidities and those undergoing complex cardiac surgery may experience extubation failure and reintubation. The aim of this study was to establish an extubation prediction model using explainable machine learning and identify the most important predictors of extubation failure in patients undergoing cardiac surgery. Data from 776 adult patients who underwent cardiac surgery and were intubated for more than 24 h were obtained from the Medical Information Mart for Intensive Care (MIMIC)-IV database.

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Objective: In this study, the research team aimed to explore the therapeutic effectiveness of hyperbaric oxygen therapy (HBOT) for noise-induced hearing loss (NIHL), its influence on patient prognosis, and its impact on hearing to provide valuable clinical evidence.

Methods: Ninety-four patients with NIHL admitted to The First People's Hospital of Changde City, Hunan, China, from May 2021 to January 2023 were selected for this retrospective analysis. Among them, 43 were given conventional treatment (control group) and 51 were given HBOT (observation group).

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While current guidelines recommend R2* method as the first-line method for liver iron concentration (LIC) measurement, its diagnostic accuracy is debatable. A prior meta-analysis suggested limited accuracy of R2* method for identifying patients with iron overload. However, substantial advances in R2* method over the past decade may have improved its diagnostic performance.

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Ceftazidime-avibactam (CZA) is one of the effective antibiotics used for the treatment of carbapenem-resistant (CRKP) infections, but its resistance rate has increased recently. Previous studies have focused on the mechanisms of CZA resistance, while its heteroresistance in CRKP remains poorly understood. This study aimed to investigate the characteristics and mechanisms of CZA heteroresistance in CRKP isolates.

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Article Synopsis
  • Membranous nephropathy (MN) and IgA nephropathy (IgAN) are difficult to treat, with current therapies mainly relieving symptoms but often failing to improve outcomes, highlighting the need for new drug targets.
  • Researchers used large genome-wide association study (GWAS) data to establish connections between specific plasma proteins and these kidney diseases, employing various analytical methods to confirm the significance of their findings.
  • The study identified four proteins linked to MN and three to IgAN, suggesting potential new targets for treatment; key proteins like PLA2R1 and NFKB1 showed strong associations with MN risk, while others like AIF1 offered protective effects against IgAN.
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Article Synopsis
  • Tigecycline (TGC) is used to treat carbapenem-resistant (CRAB) infections, while eravacycline (ERV) is a newer tetracycline that could provide additional treatment options, but their resistance mechanisms are not fully understood.
  • A study analyzed 492 clinical isolates from hospitalized patients in China, comparing the resistance characteristics of ERV and TGC, finding that ERV generally had lower minimum inhibitory concentrations (MICs) than TGC.
  • The results showed distinct resistance mechanisms, with certain genetic mutations and insertions contributing to the resistance; specifically, high expression levels in resistant strains were linked to the presence of insertions, impacting the effectiveness of both ERV and TGC
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MiR-145-5p has been implicated in the development and progression of various disorders, and it is primarily recognized as a tumor suppressor in numerous cancers types. Its expression has been reported to decrease in the granulosa cells of patients with polycystic ovarian syndrome (PCOS). This study aimed to investigate whether miR-145-5p plays a role in granulosa cell proliferation and to shed light on the underlying pathological mechanisms of follicular development in patients with PCOS.

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Single and multiple random change points (RCPs) in survival analysis have arisen naturally in oncology trials, where the time to hazard rate change differs from one subject to another. Recently, Xu formulated and discovered important properties of these survival models using a frequentist approach, allowing us to estimate the hazard rates, rate parameters of the exponential distributions for the RCPs, expected survival and hazard functions. However, these methods did not provide an estimation of the uncertainty or the confidence intervals for the parameters and their differences or ratios.

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The regulatory mechanisms involved in embryonic development are complex and yet remain unclear. SCP4 represents a novel nucleus-resident phosphatase identified in our previous study. The primary aim of this study was to elucidate the function of SCP4 in the progress of cartilage development and endochondral osteogenesis.

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The efficacy of neoadjuvant chemotherapy (NACT) in patients with advanced gastric cancer (GC) varies greatly. Thus, we aimed to verify the predictive value of tumor-infiltrating immune cells (TIICs) on the treatment response to NACT and the prognosis of patients with advanced GC, and to explore the impact of NACT on the tumor immune microenvironment (TIME). Paired tumor tissues (pre- and post-NACT) from patients with advanced GC were collected for this study.

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Article Synopsis
  • Knee osteoarthritis (KOA) is a common degenerative joint disease among older adults, and Glycyrrhiza uralensis (GC) is traditionally used in Chinese medicine to treat it, although its specific effects are not fully understood.
  • Research involving UPLC-Q-TOF/MS identified key compounds in GC, revealing its therapeutic benefits in mice with DMM-induced KOA, which included improvements in movement disorders and joint damage.
  • Network pharmacology analysis found seven core targets and three main inflammatory pathways linked to GC’s effects, with the active component Naringenin showing promising anti-inflammatory properties by reducing inflammation markers in the knee joints of osteoarthritic mice.
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Objective: To investigate the utility of alpha-fetoprotein (AFP) and ultrasound in the diagnosis and prognosis of patients with hepatocellular liver cancer (HCC).

Methods: Using retrospective convenience sampling, 401 patients with HCC who underwent transarterial chemoembolisation at the Department of Oncology of The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University between June 2015 and January 2020 were recruited and assigned to the case group.

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NKAP mutations are associated with Hackmann-Di Donato-type X-linked syndromic intellectual developmental disorder (MRXSHD, MIM: #301039). Here, we elucidate the potential prenatal manifestation of NKAP mutation-associated disorder for the first time, alongside revealing the relationship between NKAP mutations and congenital heart defect (CHD) in the Chinese population. An NKAP mutation (NM_024528.

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Article Synopsis
  • Carbapenem-resistant Acinetobacter baumannii (CRAB) poses a challenge to antibiotic treatment, but eravacycline shows promise as a potential treatment option; however, its resistance mechanisms remain unclear.
  • A study of 287 CRAB isolates from China identified that approximately 17% exhibited heteroresistance to eravacycline, mainly among strains that also produced the OXA-23 carbapenemase, with a significant correlation to higher expression levels of certain resistance genes.
  • The study found that the presence of efflux pump inhibitors could reduce eravacycline resistance, indicating potential avenues for improving treatment strategies against CRAB infections. *
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Aims: The main pathological features of osteoarthritis (OA) include the degeneration of articular cartilage and a decrease in matrix synthesis. Chondrocytes, which contribute to matrix synthesis, play a crucial role in the development of OA. Liquiritin, an effective ingredient extracted from Glycyrrhiza uralensis Fisch.

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Objective: To investigate the value of the left lateral decubitus position in laparoscopic right posterior lobe tumor resection.

Patients And Methods: The clinical data of patients who underwent laparoscopic right posterior lobectomy from January 2020 to March 2023 were retrospectively collected and divided into group A (left lateral decubitus position group, n=30) and group B (conventional position group, n=35) according to different body positions. Intraoperative and postoperative data were collected and compared between the 2 groups.

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Background: Basic leucine zipper (bZIP) protein is a plant-specific transcription factor involved in various biological processes, including light signaling, seed maturation, flower development, cell elongation, seed accumulation protein, and abiotic and biological stress responses. However, little is known about the pea bZIP family.

Results: In this study, we identified 87 bZIP genes in pea, named PsbZIP1 ~ PsbZIP87, via homology analysis using Arabidopsis.

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Aim: Microvascular invasion (MVI) is an independent risk factor for postoperative recurrence and metastasis in hepatocellular carcinoma (HCC). However, the specific protein expression profiles that differentiate HCC with MVI from those without MVI remain unclear.

Methods: The profiles of proteins in early-stage HCC tissues and normal liver tissues were characterized by quantitative proteomics techniques.

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