Publications by authors named "Chang-An Guo"

Ethnopharmacological Relevance: The Yi people in the Xiaoliangshan region in southwest China have a unique practice of combining ritual treatment and traditional medicine to care for patients. Despite increasing urbanization in the area, they have managed to preserve their distinctive lifestyle and extensive knowledge of traditional medicinal plants, setting them apart from other regions. However, there is a lack of systematic documentation on the knowledge of traditional medicinal plants used by the Yi people in Xiaoliangshan.

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  • The ethnobotanical study in the Rongjia River Valley near Mount Everest aimed to document traditional knowledge of wild edible plants (WEPs) used by local communities facing food supply issues.
  • Conducted from August 2021 to June 2023, the research involved interviews with 161 informants and emphasized the collection and identification of 50 WEPs across various culinary and medicinal applications.
  • Findings revealed that wild vegetables and fruits were the most consumed, with three key species identified for their significant use, while some historically important plants had fallen out of use.
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  • The study investigates the role of the circadian clock gene NPAS2 in predicting survival outcomes for patients who have undergone surgery for gastric cancer (GC).
  • Researchers analyzed tumor tissues and clinical data from 101 GC patients, finding that NPAS2 expression was significantly higher in cancerous tissues compared to adjacent normal tissues.
  • Results indicate that high NPAS2 expression is associated with worse overall survival and correlates with various cancer progression metrics, making it a potential independent prognostic factor for gastric cancer patients.
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Background: By comparing the differences in plant use between various cultures or regions, we can gain a better understanding of traditional knowledge of plant use among different groups, which may lead to a more objective understanding. Even though the Tibetan and Daman people live in the same ecosystem in Gyirong town, China, their cultural backgrounds and livelihoods differ. Therefore, the objective of this study is to document the traditional knowledge of plant use among the Daman people and compare it with the local Tibetan knowledge of plant use.

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Background: Gyirong Valley known as the "Back Garden of the Himalayas" is located in the core area of the Everest National Nature Reserve. It is also one of the important ports from ancient Tibet to Kathmandu, Nepal, since ancient times. Over the years, the Tibetans of Gyirong had accumulated sufficient traditional knowledge about local plant resources.

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NPM1 plays an important role in the occurrence and development of leukemia and various solid tumors. This study aimed to investigate the expression of NPM1 in gastric cancer (GC) and adjacent normal tissues, study the relationship between NPM1 expression and clinicopathological characteristics in GC patients, and explore the impact of NPM1 expression on the diagnosis and prognosis of GC. We used tissue microarray immunohistochemical analysis to examine the expression level of NPM1 in GC and adjacent tissues and analyzed the relationship between NPM1 expression, clinicopathological factors, and GC prognosis.

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Introduction: Plant resources gathered from the wild are important sources of livelihood needs, especially for low-income populations living in remote areas, who rely on these plants for food, fuelwood, medicine and building materials. Yadong County is a valley at the border between the China, India and Bhutan in southern Tibet. Yadong is rich in biodiversity and culture, but ethnobotanical knowledge has not been systematically studied.

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  • The study investigates the folk plant naming practices of the Yi people in Xiaoliangshan, Yunnan Province, to document their unique botanical nomenclature, which has not been systematically researched before.
  • Conducted over two years, the survey involved interviews with 266 informants, leading to the identification of 228 indigenous plants based on local characteristics, usage, and cultural context.
  • Results show that while there are similarities in plant names between the Yi communities in Xiaoliangshan and Daliangshan, each area also has unique naming conventions, highlighting the cultural and environmental influences on their plant nomenclature.
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Background: The wooden bowl is an important symbol of the Tibetan cultures, yet, in China, little has been documented regarding the raw materials used to make these items as well as their cultural significance in Tibet. This study explores the ethnobotanical uses of plants used to make wooden bowls to understand their sustainability, cultural significance, and current status of related traditional knowledge in Gyirong Town, which is one of the most famous places for wooden bowl making.

Materials And Methods: Between 2019 and 2021, key informant interviews, semi-structured interviews, and participatory observations were used to conduct ethnobotanical field surveys in Gyirong Valley.

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Aim: To systematically evaluate the medication safety and effectiveness of Oxcarbazepine (OXC) and carbamazepine (CBZ) for the treatment of post-stroke epilepsy (PSE).

Material And Methods: We searched Medline and other databases to identify the randomized controlled trials (RCTs) that compare the efficacies of OXC and CBZ in treating PSE. Two authors extracted and analyzed the data independently with Revman 5.

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This study aimed to examine the role of Zizyphus jujuba cv. Muzao polysaccharides (ZJPs) in protecting intestinal barrier function and the survival of septic mice. The sepsis mouse model was generated through cecal ligation and puncture (CLP) to observe the effect of ZJPs on the function of the intestinal barrier in the context of sepsis.

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Stearoyl-CoA Desaturase-2 (SCD2) is a member of the Stearoyl-CoA Desaturase (SCD) family of enzymes that catalyze the rate-limiting step in monounsaturated fatty acid (MUFA) synthesis. The MUFAs palmitoleoyl-CoA (16:1n7) and oleoyl-CoA (18:1n9) are the major products of SCD2. Palmitoleoyl-CoA and oleoyl-CoA have various roles, from being a source of energy to signaling molecules.

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In mouse, there are four stearoyl-CoA desaturase isoforms (SCD1-4) that catalyze the synthesis of monounsaturated fatty acids. Previously, we have shown that mice harboring a whole body deletion of the SCD1 isoform (SCD1KO) are protected from diet and genetically induced adiposity. Here, we report that global deletion of the SCD2 isoform (SCD2KO) provides a similar protective effect against the onset of both high-fat diet (HFD) and high-carbohydrate diet (HCD) induced adiposity.

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Background/aims: Accumulating evidence reveals esmolol could protect the gut mucosa through the regulation of immune response and inflammation in patients with sepsis. However, its underlying mechanism is not fully understood.

Materials And Methods: Diamine oxidase (DAO), intestinal fatty acid-binding protein (I-FABP), interleukin (IL)-6, and IL-10 in the plasma of rats were detected by ELISA assay.

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Background: Anaplastic thyroid carcinoma (ATC) is a refractory and poor prognosis tumor Present study aimed to investigate the underlying biological functions and pathways involved in the development of ATC and to identify potential hub genes and candidate biomarkers of ATC.

Materials And Methods: Bioinformatics analyses were performed to identify the differentially expressed genes (DEGs) between ATC tissue samples and adjacent normal tissue samples. Protein-protein interaction (PPI) networks of the DEGs were constructed using Search Tool for the Retrieval of Interacting Genes online tool and Cytoscape software and divided into sub-networks using the Molecular Complex Detection (MCODE) plug-in.

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Background: Actin filament-associated protein 1-antisense RNA 1 (AFAP1-AS1) plays an important role in the development and progression of several human cancers. However, its biological function in gastric cancer (GC) progression is still unknown.

Methods: We used qRT-PCR to detect the relative expression of AFAP1-AS1 in GC tissues and cell lines.

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Article Synopsis
  • The study looked at two types of surgeries for stomach cancer: robot-assisted total gastrectomy (RATG) and robot-assisted distal gastrectomy (RADG).
  • It found that RATG had more complications and issues after surgery compared to RADG.
  • The results show that while both surgeries are safe, RATG has a higher chance of problems like leaking at the surgical site. *
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Evidence indicates that aberrantly expressed long non-coding RNAs (lncRNAs) are involved in the development and progression of advanced gastric cancer (AGC). Using RNA sequencing data and clinical information obtained from The Cancer Gene Atlas, we combined differential lncRNA expression profiling and weighted gene co-expression network analysis to identify key lncRNAs associated with AGC progression and prognosis. Cancer susceptibility 19 () was the top hub lncRNA among the lncRNAs included in the gene module most significantly correlated with AGC's pathological variables.

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Background: Robot-assisted gastrectomy (RAG) has been increasingly used for the treatment of advanced gastric cancer (AGC), and many advantages over laparoscopy-assisted gastrectomy (LAG) have been reported. However, its postgastrectomy complications still under investigation and the results remain controversial. This study aimed to objectively assess the incidence and severity of complications following RAG vs.

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Stearoyl-CoA desaturase 1 (SCD1), a lipogenic enzyme that adds a double bond at the delta 9 position of stearate (C18: 0) and palmitate (C16: 0), has been proven to be important in the development of obesity. Mice with skin-specific deficiency of SCD1 (SKO) display increased whole-body energy expenditure, which is protective against adiposity from a high-fat diet because it improves glucose clearance, insulin sensitivity, and hepatic steatosis. Of note, these mice also display elevated levels of the "pro-inflammatory" plasma interleukin-6 (IL-6).

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  • Wear particles from prostheses cause osteoclast bone resorption, leading to osteolysis and prosthetic loosening; this study examines the impact of rifampin on this process.
  • Rifampin was tested in a mouse model and with bone marrow-derived macrophages, showing inhibition of osteoclastogenesis and osteolysis at varying doses.
  • The findings indicate that rifampin effectively suppressed osteoclast differentiation and activity by interfering with specific signaling pathways, suggesting its potential as a treatment for osteolysis related to implant wear and excessive osteoclast activity.
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The molecular mechanisms underlying lymphatic vascular development and function are not well understood. Recent studies have suggested a role for endothelial cell (EC) mitogen-activated protein kinase kinase kinase kinase 4 (Map4k4) in developmental angiogenesis and atherosclerosis. Here, we show that constitutive loss of EC Map4k4 in mice causes postnatal lethality due to chylothorax, suggesting that Map4k4 is required for normal lymphatic vascular function.

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The purpose of this study was to evaluate the clinical outcomes of osteonecrosis of the femoral head after autologous bone marrow stem cell implantation. We searched the PubMed, Embase and Web of Science databases and included all case-control trials that reported on the clinical outcomes of osteonecrosis progression, incidence of total hip arthroplasty and improvement in Harris hip scores. Overall, seven case-control trials were included.

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Angiogenesis is an important event in steroid-associated osteonecrosis of the femoral head (SONFH). Here we performed miRNA microarray with SONFH tissues (ONs) and the adjacent normal tissues (NLs) to select the angiogenic miRNA. The results showed that miR-210 was differentially expressed in SONFH versus normal tissues.

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Stem cells and scaffolds play a very important role in tissue engineering. Here, we isolated synovium-derived mesenchymal stem cells (SMSCs) from synovial membrane tissue and characterized stem-cell properties. Gelatin nanoparticles (NP) were prepared using a two-step desolvation method and then pre-mixed into different host matrix (silk fibroin (SF), gelatin (Gel), or SF-Gel mixture) to generate various 3D printed nanocomposite scaffolds (NP/SF, NP/SF-Gel, NP/Gel-1, and NP/Gel-2).

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