Publications by authors named "Guo-bin Li"

Objective: To identify the relation of microvascular density (MVD) to the early postoperative recurrence and metastasis of T1 esophageal squamous cell carcinoma, and to determine whether MVD could be a prognostic predictor of esophageal squamous cell carcinoma.

Methods: Patients with T1 esophageal squamous cell carcinoma were enrolled. Immunohistochemistry with primary antibody against CD-34 was performed to count MVD.

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Controlled-release pesticide formulations using natural polymers as carriers are highly desirable owing to their good biocompatibility, biodegradability, and improved pesticide utilization. In this study, the application potential of our previously prepared spinosad/chitosan controlled-release suspension (SCCS) was evaluated through both toxicity and dissipation tests. A comparison with the spinosad suspension concentrate and the commercial spinosad emulsion in water showed that the insecticidal activity of SCCS against larvae displayed the best quick-acting performance as well as long-term efficacy of more than 20 days.

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Controlled release pesticide formulation with long-term efficacy is highly desirable for improving pesticide utilization and reducing adverse effects. In this study, an environment-friendly controlled release formulation of biological insecticide spinosad was fabricated through the coprecipitation-based synchronous encapsulation with chitosan. The resulted spinosad/chitosan formulation showed an excellent encapsulation efficiency of 60 %, obvious pH and temperature sensitivity, and outstanding ultraviolet shielding ability.

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The nature of muscle-bone crosstalk has been historically considered to be only mechanical, where the muscle is the load applier while bone provides the attachment sites. However, this dogma has been challenged with the emerging notion that bone and muscle act as secretory endocrine organs affect the function of each other. Biochemical crosstalk occurs through myokines such as myostatin, irisin, interleukin (IL)-6, IL-7, IL-15, insulin-like growth factor-1, fibroblast growth factor (FGF)-2, and β-aminoisobutyric acid and through bone-derived factors including FGF23, prostaglandin E , transforming growth factor β, osteocalcin, and sclerostin.

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Article Synopsis
  • The study aimed to explore the link between c-kit expression (a marker for interstitial cells of Cajal) in the colon and slow transit constipation (STC) in rats.
  • STC was induced in rats using diphenoxylate, showing significantly lower fecal output and delayed fecal discharge compared to normal rats.
  • The results indicated a substantial decrease in c-kit expression in both the proximal and distal colon of STC rats, suggesting its down-regulation may contribute to the development of slow transit constipation.
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Coconut shell based activated carbon was modified by alkali with different concentrations. The surface structures of tested carbons were observed and analyzed by SEM and BET methods. Boehm's titration and SEM/EDS methods were applied to assay the functional groups and elements on the carbon surface.

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Article Synopsis
  • Researchers extracted and characterized various bioactive compounds from Hedyotis diffusa Willd. using advanced HPLC-ESI-MS(n) techniques.
  • They successfully identified or tentatively characterized a total of 33 compounds, including 14 iridoid glucosides, 10 flavonoids, and others, with some being newly discovered.
  • The study provides a novel method for structural characterization of H. diffusa's chemical constituents, revealing more iridoid glycosides than previously believed.
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Background: Mouse krüppel-like factor 4 (Klf4) is a zinc finger-containing transcription factor required for terminal differentiation of goblet cells in the colon. However, studies using either Klf4(-/-) mice or mice with conditionally deleted Klf4 in their gastric epithelia showed different results in the role of Klf4 in epithelial cell proliferation. We used zebrafish as a model organism to gain further understanding of the role of Klf4 in the intestinal cell proliferation and differentiation.

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Objective: To study the characteristics of thyroglossal tract cyst epidemiology and summarize how to improve the operation therapeutic effect.

Methods: The clinic appearance, the pathological characteristics and the therapeutic effect of the 60 thyroglossal tract cyst cases were analyzed.

Results: Thyroglossal tract cyst mostly occurred in children and teenagers.

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