Publications by authors named "Chen-xin Lin"

Background: Colorectal cancer (CRC) is a malignancy that arises within the gastrointestinal tract. Despite ongoing research, the etiology and pathogenesis of CRC remain elusive; particularly, the distribution and characteristics of tumor-associated macrophages is currently an active area of investigation in understanding the pathological progression and prevention of CRC.

Methods: This study utilized CRC patient surgical samples, mouse models of colitis-associated cancer, colonic organoid, and co-culture cell line to examine the changes in CD11b/CD86 at different pathological region and detect the Wnt signaling pathway activity.

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Intestinal macrophages play crucial roles in both intestinal inflammation and immune homeostasis. They can adopt two distinct phenotypes, primarily determined by environmental cues. These phenotypes encompass the classically activated pro-inflammatory M1 phenotype, as well as the alternatively activated anti-inflammatory M2 phenotype.

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In this research, five new indolequinazoline alkaloids (1-5), along with six known indolequinazoline alkaloids (6-11) were obtained from the fruits of Tetradium ruticarpum. Their structures were elucidated through comprehensive spectroscopic data of 1D and 2D NMR, HRESIMS and ECD spectra. Additionally, all isolates were assayed for their SIRT1 inhibitory activities in vitro and compounds 2, 7, 10 and 11 exhibited activities with IC values ranged from 43.

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  • Merkel cell carcinoma (MCC) is a type of skin cancer that involves immune evasion, prompting studies to understand how this occurs in patients.* -
  • Using single-cell RNA sequencing, researchers tracked changes in various immune cell types over time in patients with MCC to uncover mechanisms behind immune resistance and disease progression.* -
  • The study found that T cell exhaustion and altered monocyte populations contribute to immune evasion and drug resistance in MCC, highlighting the need to address immune system dysfunction in treatment.*
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  • A study conducted in China between October and December 2022 assessed the prevalence of depression and anxiety among 8,436 older adults using standardized questionnaires.
  • The findings showed a depression prevalence of 2.79% and anxiety prevalence of 1.39%, with higher risks linked to factors like being female, widowed, and having chronic diseases while those in rural areas or walking daily had lower risks.
  • The study emphasizes the importance of supporting older adults' mental health through diet, social activities, and physical exercise to mitigate depression and anxiety risks.
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Background: Anal fistulas are mainly treated via surgery. They can be difficult to treat without surgical intervention. Numerous procedures, such as fistulectomy and fistulotomy, are performed to treat anal fistulas and achieve good effects.

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Wall shear stress (WSS) is of fundamental physiological and pathological significance. Current measurement technologies suffer from poor spatial resolution or cannot measure instantaneous values in a label-free manner. Here we demonstrate dual-wavelength third-harmonic-generation (THG) line-scanning imaging, for instantaneous wall shear rate and WSS measurement in vivo.

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Objective: To evaluate if berberine can act on vitamin D receptors (VDR) and thereby regulate the expression of tight junction proteins (TJPs) in irritable bowel syndrame-diarrhea-predominant (IBS-D) rats.

Methods: The newborn rats were induced into IBS-D rat model via neonatal maternal separation combined with acetic acid chemical stimulation. After modeling, the model was evaluated and rats were divided into the control group and berberine treatment groups (0.

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  • The study investigates immune cell characteristics in patients with active Crohn's disease (CDa) and inactive Crohn's disease (CDin) to understand their immune system differences.
  • Using mass cytometry and single-cell RNA sequencing, researchers analyzed various immune cells and found distinct patterns between CDa, CDin, and healthy controls.
  • Results showed that specific immune cell types were more prevalent in CDa compared to CDin, suggesting these cells might play a role in the progression of Crohn's disease and could help in improving diagnosis and treatment strategies.
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Six new alkaloids (1-6) and six known alkaloids (7-12) were obtained from the stems of Sinomenium acutum. Among them, compounds 1-3 and 6 were four N-oxide alkaloids. The structures and absolute configurations of these new alkaloids were elucidated through comprehensive data of 1D and 2D NMR, HRESIMS and ECD spectra.

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Background: Heart failure (HF), manifested as a severe or end stage of various cardiac diseases, is characterized by increased incidence, mortality, re-hospitalization, and economic burden. Myocardial infarction (MI) is one of the most common and important causes of HF. Since 2005, acute MI (AMI)-associated mortality in China has been on the rise, and MI accounts for 23.

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Background: Inflammatory bowel disease (IBD) has become a global public health problem. The prevalence of IBD in China increased annually in past two decades.

Methods: This study was to translate and validate the rating form of IBD patients' concerns (RFIPC), and to describe disease-related worries and concerns of patients with IBD.

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  • The study focused on translating and validating a specific health scale, the Short Health Scale (SHS), designed to assess the quality of life (QoL) in patients with inflammatory bowel disease (IBD) in mainland China.
  • The researchers used established methods like translation, back-translation, and various reliability and validity tests, involving 112 IBD patients to ensure the scale was effective.
  • Results showed that the SHS had strong reliability (Cronbach's alpha of 0.90) and was able to differentiate QoL based on symptom severity, confirming its suitability for IBD patients in the Chinese context.*
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Ethnopharmacological Relevance: Atherosclerosis (AS) is one of major threatens of death worldwide, and vascular smooth muscle cell (VSMC) proliferation is an important characteristic in the progression of AS. Tribulus terrestris L. is a well-known Chinese Materia Medica for treating skin pruritus, vertigo and cardiovascular diseases in traditional Chinese medicine.

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  • The research examines the immune system's role in ulcerative colitis (UC), comparing active UC (UCa), inactive UC (UCin), and healthy controls (HC) to identify distinct immune characteristics.
  • Techniques like mass cytometry (CyTOF) and single-cell RNA sequencing (scRNA-seq) were employed to analyze immune cell differences and validate findings between the groups.
  • Key immune cell subsets were identified, revealing that UCa featured unique increases and decreases in specific Tregs, B cells, dendritic cells, and natural killer cells, which may help differentiate between UCa, UCin, and HC for better patient classification.
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  • The study investigates the effects of Sijunzi decoction (SJZD) as an adjuvant treatment for colorectal cancer (CRC) by exploring its therapeutic targets and pathways through network pharmacology and the ESTIMATE algorithm.
  • The ESTIMATE algorithm was used to assess immune and stromal cell infiltration in CRC, revealing a significant difference in median survival based on stromal scores, while no significant difference was found between immune groups.
  • Key findings identified four core genes (HSPB1, SPP1, IGFBP3, TGFB1) that impact CRC progression by influencing processes like hypoxia response and epithelial-mesenchymal transition.
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  • Metallic materials with special surface structures are in demand due to their unique properties, but creating bulk materials with specific crystal faces at the nanoscale is challenging.
  • The study presents a new method that combines ion implantation and oxidation-etching to modify the surface of a copper plate, exposing Cu(100) crystal planes.
  • The resulting Cu plate shows improved catalytic performance in hydrogen evolution reactions, requiring only 273 mV to achieve a current density of 10 mA/cm, indicating better efficiency due to its unique surface structure.
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Five new spirocyclic polycyclic polyprenylated acylphloroglucinols, Hyperpatulones C-G (1-5), were obtained from the leaves of Hypericum patulum. Their structures were characterized by the comprehensive analysis of their IR, NMR, CD spectra and HRESIMS data. All the new compounds were evaluated for the α-glycosidase inhibitory activities.

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  • Hepatocellular carcinoma (HCC) often accompanies portal hypertension, and transcatheter arterial chemoembolization (TACE) is a common treatment, though studies on its safety and effectiveness in patients with transjugular intrahepatic portosystemic shunt (TIPS) have yielded mixed results.
  • A meta-analysis of six studies involving 536 patients found a pooled response rate of 51%, showing no significant difference in treatment response between the TACE + TIPS and non-TIPS groups, while the overall hepatic failure rate was 8.8% but increased to 12.7% if cases with TIPS following TACE were excluded.
  • The study concludes that TIPS does not impact the effectiveness of TACE
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Background: Thymosin β4 (Tβ4) is the most abundant member of the β-thymosins and plays an important role in the control of actin polymerization in eukaryotic cells. While its effects in multiple organs and diseases are being widely investigated, the safety profile has been established in animals and humans, currently, little is known about its influence on Alzheimer's disease (AD) and the possible mechanisms. Thus, we aimed to evaluate the effects and mechanisms of Tβ4 on glial polarization and cognitive performance in APP/PS1 transgenic mice.

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  • A systematic review was conducted to identify dietary and lifestyle factors associated with gastroesophageal reflux disease (GERD) by analyzing 72 articles from various databases, focusing on distinct types of GERD including NERD, RE, and BE.
  • Key findings revealed that irregular dietary habits, like midnight snacking and eating quickly, significantly increase the risk of GERD, while vegetarian diets and avoiding meat are linked to a lower risk.
  • Positive associations were also found between GERD and factors such as high-fat diets, insufficient time between dinner and bedtime, as well as smoking and alcohol consumption; conversely, regular physical exercise was found to lower the risk of developing GERD.
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In our previous study, we showed that with increasing time in culture, the growth characteristics of enteric neural crest-derived cells (ENCCs) change, and that the proliferation, migration and neural differentiation potential of these cells in vitro notably diminish. However, there are no studies on the developmental differences in these characteristics between fetal and early-postnatal stages in vitro or in vivo. In this study, we isolated fetal (embryonic day 14.

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Inflammation response is a regulated cellular process and excessive inflammation has been recognized in numerous diseases, such as cardiovascular disease, neurodegenerative disease, inflammatory bowel disease, and cancer. L. (TT), also known as Bai Jili in Chinese, has been applied in traditional Chinese medicine for thousands of years while its anti-inflammatory activity and underlying mechanism are not fully elucidated.

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Two new phthalide dimers (1 and 2) were obtained from the rhizomes of Ligusticum sinense Oliv., along with three known dimeric phthalides (3-5). Their structures were determined with the aid of the spectroscopic data, and their absolute configurations were elucidated based on the comparison of calculated and experimental electronic circular dichroism (ECD) spectra.

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Several descriptive studies have reported that higher neutrophil count (NC) may be correlated with poor prognosis in patients with confirmed COVID-19 infection. However, the findings from these studies are limited by methodology and data analysis. This study is a cohort study.

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