Comprehensive Assessment of Collagen/Sodium Alginate-Based Sponges as Hemostatic Dressings.

In our search for a biocompatible composite hemostatic dressing, we focused on the design of a novel biomaterial composed of two natural biological components, collagen and sodium alginate (SA), cross-linked using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS) and oxidized sodium alginate (OSA). We conducted a series of tests to evaluate the physicochemical properties, acute systemic toxicity, skin irritation, intradermal reaction, sensitization, cytotoxicity, and in vivo femoral artery hemorrhage model. The results demonstrated the excellent biocompatibility of the collagen/sodium alginate (C/SA)-based dressings before and after crosslinking.

Preparation and Modification of Collagen/Sodium Alginate-Based Biomedical Materials and Their Characteristics.

(1) Background: Collagen and sodium alginate are commonly used in the field of biomedical materials due to their excellent biocompatibility. This study focuses on the preparation, modification, and characterization of collagen/sodium alginate (C/SA)-based biomedical materials. (2) Methods: The characteristics, including surface chemistry, mechanical properties, hygroscopicity, and porosity, were analyzed.

Improving the Sustainability of Processing By-Products: Extraction and Recent Biological Activities of Collagen Peptides.

Society and consumers are increasingly concerned about food safety and the sustainability of food production systems. A significant amount of by-products and discards are generated during the processing of aquatic animals, which still needs to be fully utilized by the food industry. The management and sustainable use of these resources are essential to avoiding environmental pollution and resource waste.

Geraniin inhibits cell growth and promoted autophagy-mediated cell death in the nasopharyngeal cancer C666-1 cells.

Background: Nasopharyngeal carcinoma (NPC) is a rare malignant tumor developing from epithelial linings of nasopharynx, and 10-50 out of 100,000 NPC cases were recorded globally particularly in the Asian countries.

Methodology: The cytotoxicity of geraniin against the NPC C666-1 cells were analyzed using MTT assay. The influences of geraniin on the C666-1 cell viability with the presence of ROS and apoptosis inhibitors were also studied.

Blood homocysteine and folic acid levels may provide reference value for the treatment of sudden total frequency deafness.

Background: The cause of sudden sensorineural hearing loss (SSNHL) is still unknown. Literature has indicated that there is a statistically significant correlation between hyperhomocysteinemia and SSNHL, yet there is lack of study in the relationship concerning total frequency deafness subtype of SSNHL. This study investigated the relationship between plasma concentration of homocysteine (Hcy), serum concentration of folic acid and occurrence and treatment responding in total frequency deafness adult patients, and explored whether targeted early intervention was associated with improved clinical outcome in this subgroup.