Publications by authors named "Junhan Li"

Background: Colorectal cancer is influenced by several factors such as unhealthy habits and genetic factors. has been linked to a number of malignancies. However, uncertainty surrounds the connection between and CRC.

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Introduction: Pancreaticojejunostomy have been studied and modified for more than a hundred years. We investigated a new method of pancreaticojejunostomy to explore its value in laparoscopic pancreaticoduodenectomy.

Patients And Methods: A retrospective analysis was conducted on the clinical data of 93 patients who underwent laparoscopic pancreaticoduodenectomy with 'Shunt-block combined' pancreaticojejunostomy at Ningbo Medical Center Lihuili Hospital from April 2017 to February 2023.

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Surface-enhanced Raman scattering (SERS) spectroscopy is an effective technique that can reveal molecular structure and molecular interaction details. Semiconductor-based SERS platforms exhibit multifaceted tunability and unique selectivity to target molecules as well as high spectral reproducibility. However, the detection sensitivity of semiconductors is impeded by inferior SERS enhancement.

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Herein, an electrospinning porous nanofiber with large specific surface area, excellent flexibility, remarkable tensile strength, and high stability of thermal degradation has been developed by loading Ho/Yb co-doped BiOBr/g-CN (BHY/CN) heterojunction photocatalysts on polyacrylonitrile (PAN) nanofibers. The optimized BHY/CN-2 nanofiber demonstrates outstanding photocatalytic activity for the degradation of 98.83% tetracycline (TC, 60 min) and 99.

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Rapid urbanization is one of the key factors in threatening regional ecological security and undermining human well-being. Understanding of the impacts of urbanization on ecosystem services (ESs) could provide comprehensive information for policy making to support ecological governance. In this study, the spatial and temporal distributions of four ESs, namely water yield (WY), soil conservation (SC), nitrogen export (NE), and habitat quality (HQ), and four factors of urbanization, namely construction land percentage, economic density, population density, and nighttime lighting, were analyzed in the Xiangjiang River Basin (XJRB) from 1990 to 2020.

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The accurate, sensitive, and selective on-site screening of volatile aldehyde biomarkers for lung cancer is of utmost significance for preclinical cancer diagnosis and treatment. Applying surface-enhanced Raman scattering (SERS) for gas sensing remains difficult due to the small Raman cross section of most gaseous molecules and interference from other components in exhaled breath. Using an Au asymmetrically coated TiO nanochannel membrane (Au/TiO NM) as the substrate, a ZIF-8-covered Au/TiO NM SERS sensing substrate is designed for the detection of exhaled volatile organic compounds (VOCs).

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Nonalcoholic fatty liver disease (NAFLD) is a prevalent medical condition with an ever-growing trend. Although multiple intracellular mechanisms are involved, endoplasmic reticulum (ER) stress has been demonstrated to play a significant role in the genesis and progression. Most of the research supports the advantages of exercise for NAFLD.

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Objective: To investigate the effect of aerobic exercise on AKT/GSK3β pathway-mediated hepatocyte apoptosis in non-alcoholic fatty liver diseases(NAFLD).

Methods: A total of 30 6-week-old male C57BL/6J mice, and mice were fed adaptively for one week. The control group was fed with ordinary diet, and the model group and model exercise group were fed with high-fat diet until 18 weeks.

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Bacterial contamination in diets is a major threat to human health and a global health problem. The development of sensitive methods for rapid discrimination of benign and pathogenic bacteria is essential. Herein, using self-standing Au/TiO nanotubes as a surface-enhanced Raman spectroscopy (SERS) substrate, rapid and sensitive bacteria discrimination is achieved the hydrophobic interaction between the volatile metabolites released from pathogenic bacteria and the SERS substrate.

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Article Synopsis
  • The Xiangjiang River Basin in Hunan Province is crucial for ecological sustainability and faces challenges despite protective laws and initiatives.
  • Research on its ecology has mostly focused on singular aspects, with a lack of long-term evaluations across multiple indicators, prompting a study using remote sensing to assess ecological quality from 2001 to 2020.
  • Findings indicate that while there has been overall improvement in ecological quality, areas with declining quality are concentrated in urban centers, and human factors such as population density and land use significantly affect ecological conditions.
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Background: Most patients with subarachnoid hemorrhage (SAH) do not exhibit brain parenchymal injury upon imaging but present significant blood-brain barrier (BBB) disruption and secondary neurological deficits. The aim of this study was to investigate whether stressed astrocytes act as a secondary barrier to exert a protective effect after SAH and to investigate the mechanism of glial limitan formation.

Methods: A total of 204 adult male C57BL/6 mice and an endovascular perforation SAH model were employed.

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Non-alcoholic fatty liver disease (NAFLD) is one of the main diseases of metabolic syndrome. With the increasing popularity of NAFLD in the world, the prevention and therapy of NAFLD are facing great challenges. In recent years, scholars at home and abroad have carried out a large number of studies on NAFLD, but its pathogenesis is still unclear.

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Article Synopsis
  • - The research focuses on understanding the evolutionary characteristics of diverse RNA viruses found in various animal species, highlighting the importance of studying the virome in Yunnan, China.
  • - Using metagenomic next-generation sequencing, the study analyzed 465 specimens from bats, pangolins, monkeys, and more, identifying several RNA viruses, including five newly discovered Alphacoronavirus strains.
  • - Findings revealed significant genetic divergence and potential new viral species, raising awareness of the evolutionary dynamics among viruses, and the need for further research in this area.
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Article Synopsis
  • The study investigated how aerobic exercise impacts non-alcoholic fatty liver disease (NAFLD) induced by a high-fat diet in mice, focusing on the CNPY2-PERK signaling pathway.
  • Male mice were divided into four groups to test the effects of normal vs. high-fat diets and with or without aerobic exercise over 18 weeks, measuring various liver health indicators.
  • Results showed that aerobic exercise significantly improved liver health and lowered harmful serum levels in mice on a high-fat diet, as indicated by reduced liver fat and normalized expressions of specific proteins linked to cellular stress and liver function.
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Background: Echovirus 9 (E9) is associated with a wide variety of diseases and medical conditions, and the clinical symptoms of sporadic cases caused by E9 often are severe. With a high global prevalence, E9 has caused multiple outbreaks worldwide. However, little is known about the genetic and geographic population dynamics of E9.

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The C4 sub-genotype of Enterovirus 71 (EV71) has been identified as the most dominant sub-genotype circulating in the Chinese mainland since 1998. The circulation situation of EV71 before 1998 is not well established due to insufficient experimental data. The C1 subgenotype of EV71 has not yet been reported in the Chinese mainland by now.

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Non-alcoholic fatty liver disease (NAFLD) is highly prevalent, and physical exercise represents one of the most effective methods to attenuate NAFLD. However, the mechanism of aerobic exercise improving NAFLD remains unclear. This study aims to investigate the effect of aerobic exercise on CNPY2-PERK pathway in mice with NAFLD.

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Coxsackievirus A24 variant (CVA24v) is a major pathogen that causes continued outbreaks and pandemics of acute hemorrhagic conjunctivitis (AHC). In China, the first confirmed outbreak of CVA24v-related AHC occurred in Beijing in 1988, followed by another two significant outbreaks respectively in 1994 and 2007, which coincides with the three-stage dynamic distribution of AHC in the world after 1970s. To illustrate the genetic characteristics of CVA24v in different periods, a total of 23 strains were isolated from those three outbreaks and the whole genome of those isolations were sequenced and analyzed.

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Soil loss caused by erosion is a global problem. Therefore, the assessment of soil erosion and the its driving mechanism are of great significance to soil conservation. However, soil erosion is affected by both climate change and human activities, which have not been quantified, and few researchers studied the differences in the driving mechanisms of soil erosion depending on the land use type.

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Background: China implemented the globally synchronized switch from trivalent oral poliovirus vaccine (tOPV) to bivalent OPV (bOPV) on May 1, 2016. During April 2018 to May 2019, the first outbreak caused by type 2 circulating vaccine-derived poliovirus (cVDPV2) after the switch occurred in Xinjiang and Sichuan, China. We performed sequence analysis of VP1 and the whole genome to determine the genomic characteristics of type 2 cVDPVs, and carried out coverage surveys to assess the risk of viral propagation.

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Article Synopsis
  • * The study found that lower levels of SOX5 are associated with calcified aortic valves, and altering SOX5 levels in both human and porcine AVICs can inhibit calcification and affect related gene expressions.
  • * Results indicate that SOX5 is crucial for the regulation of the SOX9 protein and its ability to activate the anti-calcific gene LRP6, suggesting SOX5 could be a target for new therapies against
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Posa-like viruses have been detected in the fecal samples of several host species and are considered unclassified members of Picornavirales. Here, we identified genomic fragments of novel posa-like viruses (monsaviruses) in monkey specimens through next generation sequencing and obtained 11 full-length genomes. This monsavirus shared 88.

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Vascular calcification frequently occurs in the process of chronic kidney disease, atherosclerosis and aging, resulting in an increased prevalence of cardiovascular events. Piperlongumine (PLG) is a natural product isolated from L. Here, we aimed to explore the effect of PLG in high calcium- and phosphate-induced vascular calcification and the associated mechanism.

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Comprehending the dynamic change characteristics of land use/cover and the driving factors causing the change are prerequisites for protecting land resources. This paper analyzes changes in cultivated land, the driving factors that cause them, and their tremendous impact on landscape pattern changes in the Dongting Lake Basin. For this purpose, we used mathematical statistics, buffer analysis, trend analysis, landscape pattern index, and logistic regression model to analyze the land use data of the study area from 1980 to 2018.

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Background/objectives: Impaired insulin-mediated glucose partitioning is an intrinsic metabolic defect in skeletal muscle from severely obese humans (BMI ≥ 40 kg/m). Roux-en-Y gastric bypass (RYGB) surgery has been shown to improve glucose metabolism in severely obese humans. The purpose of the study was to determine the effects of RYGB surgery on glucose partitioning, mitochondrial network morphology, and the markers of mitochondrial dynamics skeletal muscle from severely obese humans.

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