A Bilayer Hyaluronic Acid Wound Dressing to Promote Wound Healing in Diabetic Ulcer

2009 ◽  
Vol 24 (5) ◽  
pp. 424-443 ◽  
Author(s):  
Yung-Kai Lin ◽  
Yasuhiro Matsumoto ◽  
Yoshimitsu Kuroyanagi ◽  
Shizuko Kagawa
Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3279
Author(s):  
Longhao Jin ◽  
Sun-Jung Yoon ◽  
Dae Hoon Lee ◽  
Yun Chang Pyun ◽  
Woo Youp Kim ◽  
...  

Wound recovery close to the function of the native skin is the goal of wound healing. In this study, we prepared foam dressings (FDs; 2-GHC-FD-1–9, 5-GHC-FD-1–9, and 10-GHC-FD-1–9) composed of various concentrations of gelatin, hyaluronic acid, and carboxymethyl chitosan, which are chemically interconnected through amide bond formation, for evaluating wound healing. Tensile and cell proliferation tests showed that 2-GHC-FD-1–9 are suitable for wound dressing. For further evaluation, three types of FDs, 2-GHC-FD-1, 2-GHC-FD-4, and 2-GHC-FD-8 were chosen. The results of animal intradermal reactivity, water vapor transmission rate, and absorption rate of the three FDs indicated that 2-GHC-FD-8 is the most appropriate scaffold for wound healing. For wound healing acceleration, various concentrations of fibroblast growth factor-7 (FGF-7) was soaked in 2-GHC-FD-8 (2-GHC-FD-8/F1-6) and evaluated by using scanning electron microscopy, cell proliferation, release behavior, and in vivo animal tests. The FDs showed interconnected porous structures, increased cell proliferation until 8.0 × 10−11 M, controlled release with initial burst within 1 h, and sustained release for 48 h. The results of the animal test showed an appropriate concentration of FGF-7 for wound healing. In addition, 2-GHC-FD-8 is a suitable scaffold for wound healing. Therefore, we suggest that 2-GHC-FD-8/F3 is a useful wound dressing for accelerating wound healing.


Biomaterials ◽  
1986 ◽  
Vol 7 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Charles J. Doillon ◽  
Frederick H. Silver

2021 ◽  
Vol 15 (6) ◽  
pp. 2043-2047
Author(s):  
Ehsan A. Yahia ◽  
Ayman E. El- Sharkawey ◽  
Magda M. Bayoumi

Background: The wound dressings perform a crucial role in cutaneous wounds management due to their ability to protect wounds and promote dermal and epidermal tissue regeneration. Aim: the aim was to evaluate the effectiveness of using hydrogel/nano silver-based dressing vs. traditional dressing on diabetic foot wound healing. Methods: Sixty patients with type-2 diabetes hospitalized for diabetic foot wound treatment were recruited from selected Surgical departments. A prospective randomized control study was carried, and the results showed that the percentage of a reduction rate of the ulcer by the third week of the treatment as in the hydrogel/nano silver-based dressing group was higher (15.11%) than traditional wound dressing group (33.44%). Moreover, the mean ulcers size "sq mm" in the hydrogel/nano silver-based dressing group recognized a faster healing rate (15.11 ± 7.89), and considerably lesser in comparison to the traditional by the third week (21.65 ± 8.4). Conclusion: The hydrogel/nanosilver-based dressing showed better results than traditional dressing in managing diabetic ulcer foot. Keywords: Diabetes, Wound, Diabetic ulcer, Wound dressing, Nanomedicine, Nano-silver.


2017 ◽  
Vol 16 (3) ◽  
pp. 202-207 ◽  
Author(s):  
Jin Hyung Park ◽  
Eon Ju Park ◽  
Hyung Suk Yi

Surgical-site infection (SSI) is a common postoperative complication, primarily caused by Staphylococcus aureus. S aureus produces hyaluronidase which degrades hyaluronic acid (HA). HA prevents bacterial proliferation and has anti-inflammatory effects to promote wound healing. We evaluated the effect of HA injection with systemic antibiotics for prevention and treatment of SSIs caused by S aureus. An open wound was created on the dorsum of 40 rats. The wound bed was sutured with S aureus inoculated thread. The test group was injected with HA (HA group), and the control group received a subcutaneous injection of normal saline (NS group). All groups were then treated with intraperitoneal cefazolin injection. The sutures were removed 2 days after the procedure. Gross pathology, bacterial count, and wound histology were assessed at days 2, 4, 6, and 8 postprocedure. The HA group showed a significant reduction in the wound area compared with the control group on gross pathology (at days 8 postprocedure, 36.54% ± 6.12% vs 50.59% ± 5.50%, P < .001). The HA group showed significantly better wound healing than the control group on histological analysis, including assessment of abscess, neutrophilic infiltration, and necrosis (4.2 ± 1.2 vs 11.5 ± 2.1, P < .001). The HA group showed a lower bacterial count compared with the NS group, but the result was not significant statistically (at days 6 postprocedure, 5.11 ± 0.31 vs 5.91 ± 0.35 logCFU/mL, P = .706). In conclusion, immediate local injection of HA in wounds can reduce SSI occurrence and promote wound healing in an animal model.


2020 ◽  
Vol 149 ◽  
pp. 467-476 ◽  
Author(s):  
Asghar Eskandarinia ◽  
Amirhosein Kefayat ◽  
Mosayeb Gharakhloo ◽  
Maria Agheb ◽  
Darioush Khodabakhshi ◽  
...  

2017 ◽  
Vol 5 (21) ◽  
pp. 3816-3822 ◽  
Author(s):  
Chen Xu ◽  
Qing Li ◽  
Xin-Ting Hu ◽  
Cai-Feng Wang ◽  
Su Chen

A new simple cell-loaded route is developed to facilely prepare self-healing and biocompatible dually crosslinked hydrogels. This bio-hydrogel can be used as wound dressing in in vivo experiments to promote wound healing, showing potential in biomedical applications.


2021 ◽  
Author(s):  
Wencheng Liang ◽  
Qiaohui Lu ◽  
Fan Yu ◽  
Junyong Zhang ◽  
Chuang Xiao ◽  
...  

Rapid hemostasis and antibacterial were essential for novel wound dressing to promote wound healing. Especially, timely and rapid hemostasis could be benefit to reduce the mortality caused by excessive bleeding...


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