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Zhang X, Ning F, Chen Y, Dong CM. All-in-one polysaccharide hydrogel with resistant vascular burst pressure and cooperative wound microenvironment regulation for fatal arterial hemorrhage and diabetic wound healing. Int J Biol Macromol 2024; 272:132736. [PMID: 38830494 DOI: 10.1016/j.ijbiomac.2024.132736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/05/2024]
Abstract
Fatal massive hemorrhage and diabetic wound healing are world widely challenging in surgical managements, and uncontrolled bleeding, chronic inflammation and damaged remodeling heavily hinder the whole healing processes. Considering hemostasis, inflammation and wound microenvironment cooperatively affect the healing progression, we design all-in-one beta-glucan (BG) hybrid hydrogels reinforced with laponite nanoclay that demonstrate tunable tissue adhesion, resistant vascular burst pressure and cooperative wound microenvironment regulation for arterial hemostasis and diabetic wound prohealing. Those hydrogels had honeycomb-like porous microstructure with average pore size of 7-19 μm, tissue adhesion strength of 18-46 kPa, and vascular burst pressure of 58-174 mmHg to achieve superior hemostasis in rat liver and femoral artery models. They could effectively scavenge reactive oxygen species, transform macrophages from proinflammatory M1 into prohealing M2, and shorten the inflammation duration via synergistic actions of BG and nitric oxide (NO). Single treatment of NO-releasing BG hybrid hydrogels attained complete closure of diabetic wounds within 14 days, orchestrated to accelerate the epithelization and dermis growth, and restored normal vascularization, achieving high performance healing with optimal collagen deposition and hair follicle regeneration. Consequently, this work opens up a new avenue to design all-in-one polysaccharide hydrogels for applications in massive bleeding hemostats and diabetic wound dressings.
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Affiliation(s)
- Xueliang Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Fangrui Ning
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yanzheng Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Chang-Ming Dong
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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Zhao F, Hou W, Guo L, Wang C, Liu Y, Liu X, Min W. Novel strategy to the characterization and enhance the glycemic control properties of walnut-derived peptides via zinc chelation. Food Chem 2024; 441:138288. [PMID: 38185052 DOI: 10.1016/j.foodchem.2023.138288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/28/2023] [Accepted: 12/25/2023] [Indexed: 01/09/2024]
Abstract
This study aimed to utilize zinc coordination to promote the hypoglycemic and antioxidant properties of walnut-derived peptides, such as walnut protein hydrolysate (WPH) and Leu-Pro-Leu-Leu-Arg (LPLLR, LP5), of which LP5 was previously identified from WPH. The optimal conditions for the chelation were a peptide-to-zinc ratio of 6:1, pH of 9, duration of 50 min, and temperature of 50 °C. The WPH-Zn and LP5-Zn complexes increased the α-glucosidase inhibition, α-amylase inhibition, and antioxidant activity more than WPH and LP5 (p < 0.05). In particular, the antioxidant activity of WPH-Zn was superior to LP5-Zn. This is attributable to the WPH containing more aromatic amino acids, carboxylate groups and the imidazole groups, which implies its capacity to potentially coordinate with Zn2+ to form the WPH-Zn complex. Moreover, particle size, zeta potential, and scanning electron microscope indicated that the chelation of Zn2+ by peptides led to intramolecular and intermolecular folding and aggregation.
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Affiliation(s)
- Fanrui Zhao
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China; School of Advanced Studies, University of Camerino, Camerino 62032, Italy
| | - Weiyu Hou
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Linxin Guo
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Chongchong Wang
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China
| | - Yan Liu
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China
| | - Xingquan Liu
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China
| | - Weihong Min
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China.
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