Publications by authors named "XiaoLong Chen"

Study Design: A retrospective radiologic study.

Objectives: To identify age-associated changes in T1 slope (T1S) and C7 slope (C7S), as well as the difference between T1S and C7S (△, which was defined as T1S minus C7S) and to explore the cervical morphology that C7S can be the most accurate alternative for the invisible T1S.

Methods: 625 asymptomatic Chinese volunteers received cervical lateral radiographs from August 2021 to May 2022.

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Bulk photovoltaic effect (BPVE), a second-order nonlinear optical effect governed by the quantum geometric properties of materials, offers a promising approach to overcome the Shockley-Quiesser limit of traditional photovoltaic effect and further improve the efficiency of energy harvesting. Here, we propose an effective platform, the nano edges embedded in assembled van der Waals (vdW) homo- or hetero-structures with strong symmetry breaking, low dimensionality and abundant species, for BPVE investigations. The BPVE-induced photocurrents strongly depend on the orientation of edge-embedded structures and polarization of incident light.

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Objective: Whilst microdiscectomy is an excellent reliever of pain for recalcitrant lumbar disc herniation (LDH), it has a high failure rate over time due to the ensuing reduction in mechanical stabilization and support of the spine. One option is to clear the disc and replace it with a nonhygroscopic elastomer. Here, we present the evaluation of biomechanical and biological behavior of a novel elastomeric nucleus device (Kunovus disc device [KDD]), consisting of a silicone jacket and a two-part in situ curing silicone polymer filler.

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Many factors may trigger intervertebral disc (IVD) structural failure (intervertebral disc degeneration (IDD) and endplate changes), including inflammation, infection, dysbiosis, and the downstream effects of chemical factors. Of these, microbial diversity in the IVD and elsewhere in the body has been considered as one of the potential reasons for disc structural failure. The exact relationships between microbial colonization and IVD structural failure are not well understood.

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α-Monoglucosyl hesperidin is a promising food additive with various activities. However, there are a few reports about the production of α-monoglucosyl hesperidin. Here, to develop a practical and safe process for α-monoglucosyl hesperidin synthesis, we used nonpathogenic Bacillus subtilis as a host to express cyclodextrin glucanotransferase (CGTase) from Bacillus sp.

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2-O-α-D-glucopyranosyl-L-ascorbic acid (AA-2G), a stable glucoside derivative of L-ascorbic acid (L-AA), can be one-step synthesized by sucrose phosphorylase (SPase). In this study, we attempted to produce extracellular SPase in Bacillus subtilis WB800 for the food-grade production of AA-2G. The results showed that the secretion of SPases did not require signal peptide.

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The effects of exogenous γ-aminobutyric acid (GABA) and melatonin (MT) on tomato seed germination and shoot growth exposed to cadmium stress were investigated. On the one hand, treatment with MT (10-200 μM) or GABA (10-200 μM) alone could significantly relieve cadmium stress in tomato seedlings, which is reflected in increasing the germination rate, vigor index, fresh weight, dry weight and radicle lengths of tomato seeds, as well as the soluble content compared to the absence of exogenous treatment, and the alleviating effect reached the peak in the 200 µM GABA or 150 µM MT alone. On the other hand, exogenous MT and GABA showed synergistic effects on the germination of tomato seed under cadmium stress.

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Intervertebral disc degeneration (IVDD) is a complex pathological condition associated with the development of low back pain. Despite numerous studies, the specific molecular mechanisms underlying IVDD remain unclear. At the cellular level, IVDD involves a series of changes, including cell proliferation, cell death, and inflammation.

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Article Synopsis
  • Irritable bowel syndrome (IBS) affects 5%-10% of the population, causing significant discomfort for patients and a burden on society. Recent research suggests that vitamin D could help alleviate IBS symptoms, though evidence has been limited.
  • This meta-analysis reviewed 6 randomized controlled trials involving 572 IBS patients to assess the impact of vitamin D on gastrointestinal symptoms, revealing a significant reduction in symptom severity but no notable improvement in quality of life.
  • The findings indicate that vitamin D supplementation may be beneficial for IBS patients in managing their gastrointestinal symptoms, though further research is needed to confirm these effects on quality of life.
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Purpose: Transjugular intrahepatic portosystemic shunt (TIPS) and splenectomy with periesophagogastric devascularization (SPD) are widely used to treat cirrhotic portal hypertension (PH) and prevent variceal rebleeding. However, direct comparisons between these two approaches are rare. This study was designed to compare the long-term outcomes of TIPS and SPD in patients with cirrhotic PH and variceal rebleeding.

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Background: Hepatic ischemia-reperfusion injury (HIRI) remains a common complication during liver transplantation (LT) in patients. As a key downstream effector of the Hippo pathway, Yes-associated protein (YAP) has been reported to be involved in various physiological and pathological processes. However, it remains elusive whether and how YAP may control autophagy activation during ischemia-reperfusion.

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For cells to initiate and sustain a differentiated state, it is necessary that a 'memory' of this state is transmitted through mitosis to the daughter cells. Mammalian switch/sucrose non-fermentable (SWI/SNF) complexes (also known as Brg1/Brg-associated factors, or BAF) control cell identity by modulating chromatin architecture to regulate gene expression, but whether they participate in cell fate memory is unclear. Here we provide evidence that subunits of SWI/SNF act as mitotic bookmarks to safeguard cell identity during cell division.

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Study Design: A prospective case-control study.

Objective: To analyze global coronal malalignment (GCM) in degenerative lumbar scoliosis (DLS) and to prospectively investigate the performance of priority-matching correction technique on preventing postoperative coronal imbalance.

Methods: A total of 444 DLS inpatients and outpatients were recruited.

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In the past period, due to the rapid development of next-generation sequencing technology, accumulating evidence has clarified the complex role of the human microbiota in the development of cancer and the therapeutic response. More importantly, available evidence seems to indicate that modulating the composition of the gut microbiota to improve the efficacy of anti-cancer drugs may be feasible. However, intricate complexities exist, and a deep and comprehensive understanding of how the human microbiota interacts with cancer is critical to realize its full potential in cancer treatment.

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We assessed dynamic changes in visceral hypersensitivity and fecal metabolomics through a mouse model of irritable bowel syndrome (IBS) from childhood to adulthood. A mouse model of IBS was constructed with maternal separation (MS) in early life. Male mice aged 25, 40, and 70 days were used.

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Target double-stranded DNA (dsDNA) or single-stranded DNA (ssDNA) can activate the trans-cleavage activity of the CRISPR/Cas12a, cutting the surrounding non-target ssDNA arbitrarily. In a typical CRISPR/Cas12a system, this non-target ssDNA, with a fluorescent tag and its quencher incorporated at both ends (ssDNA-FQ), is usually used as the reporter. Here, a 2-aminopurine probe (T-pro 4), made by inserting four 2-APs in non-target ssDNA, was screened for using as a reporter in the CRISPR/Cas12a system.

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Background: Solute carrier organic anion transporter family member 4A1 (SLCO4A1), a member of solute carrier organic anion family, is a key gene regulating bile metabolism, organic anion transport, and ABC transport. However, the association of SLCO4A1 with prognosis and tumor immune infiltration in colon adenocarcinoma (COAD) remains indistinct.

Methods: Firstly, we explored the expression level of SLCO4A1 in COAD via GEPIA, Oncomine, and UALCAN databases.

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The recently discovered kagome metals AVSb (A = Cs, Rb, K) exhibit a variety of intriguing phenomena, such as a charge density wave (CDW) with time-reversal symmetry breaking and possible unconventional superconductivity. Here, we report a rare non-monotonic evolution of the CDW temperature (T) with the reduction of flake thickness approaching the atomic limit, and the superconducting transition temperature (T) features an inverse variation with T. T initially decreases to a minimum value of 72 K at 27 layers and then increases abruptly, reaching a record-high value of 120 K at 5 layers.

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Objectives: Calgranulins S100A8 and S100A9 are common in renal stones and they are up-regulated in both urinary exosomes and kidneys of stone patients. Renal sources and important regulators for S100A8 and S100A9 in nephrolithiasis were explored in this study.

Materials And Methods: We identified S100A8 and S100A9 abundance in various renal cells by searching the Single Cell Type Atlas.

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Background: Index of cardiac electrophysiological balance (iCEB) has been widely used in clinical practice but no studies investigated the association between iCEB and prognosis in the general population.

Objective: To assess the correlation between the iCEB and the prognosis in the general population.

Methods: This retrospective cohort study involved adults aged 40-65 years who participated in the Third National Health and Nutrition Examination Survey (NHANES-III) and whose electrocardiograms were in sinus rhythm.

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Radar is an extremely valuable sensing technology for detecting moving targets and measuring their range, velocity, and angular positions. When people are monitored at home, radar is more likely to be accepted by end-users, as they already use WiFi, is perceived as privacy-preserving compared to cameras, and does not require user compliance as wearable sensors do. Furthermore, it is not affected by lighting conditions nor requires artificial lights that could cause discomfort in the home environment.

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Article Synopsis
  • Strontium ferrite nanostructures are gaining attention for their cost-effectiveness and chemical corrosion resistance, but synthesizing them quickly with the right coercivity remains challenging.
  • Researchers successfully created porous strontium ferrite foams with high coercivity (23.35 kOe) through a rapid 1-minute annealing process using an auto-combustion method.
  • This synthesis technique can also be applied to create various other porous materials, offering significant insights for developing durable permanent magnets and efficient porous oxide foams.
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Background: The results of studies comparing Billroth-I (B-I) with Roux-en-Y (R-Y) reconstruction on the quality of life (QoL) are still inconsistent. The aim of this trial was to compare the long-term QoL of B-I with R-Y anastomosis after curative distal gastrectomy for gastric cancer.

Methods: A total of 140 patients undergoing curative distal gastrectomy with D2 lymphadenectomy in West China Hospital, Sichuan University from May 2011 to May 2014 were randomly assigned to the B-I group ( N  = 70) and R-Y group ( N  = 70).

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Background: Bacterial microbiome as a putative trigger of inflammation might indicate the cascade of mouth-gut-disc axis for causing intervertebral disc (IVD) structural failures (such as IVD degeneration and endplate change) processed. However, direct evidence for the mouth-gut-disc axis still unclear. Therefore, it is interesting to explore periodontal inflammation related to IVD structural failures and clinical outcomes.

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Background: Liver tumor remains an important cause of cancer-related death. Nanosecond pulsed electric fields (nsPEFs) are advantageous in the treatment of melanoma and pancreatic cancer, but their therapeutic application on liver tumors need to be further studied.

Methods: Hep3B cells were treated with nsPEFs.

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Synopsis of recent research by authors named "XiaoLong Chen"

  • Xiaolong Chen's research encompasses diverse fields, prominently featuring studies on the shoulder microbiome, highlighting the significance of microbial communities in orthopedic health and conditions such as osteoarthritis and rotator cuff tears.* -
  • His work also delves into technological advancements, particularly in neuromorphic computing where he developed scalable synaptic transistor memories using carbon nanotubes, aiming to enhance data processing efficiency in machine learning applications.* -
  • Additionally, Chen investigates clinical approaches such as Enhanced Recovery After Surgery (ERAS) protocols in elderly patients undergoing spinal surgeries, demonstrating improvements in surgical outcomes through evidence-based multimodal management.*