scholarly journals The Effect of Educated Platelets on the Healing Process of Burn Wounds in Rats: Educated Platelets in Rat Burn Wound Healing

2021 ◽  
Vol 8 ◽  
Author(s):  
Orkun Ilgen ◽  
Sefa Kurt ◽  
Osman Yilmaz ◽  
Murat Celiloglu

Burns are serious life-threatening health problems. This study was performed to determine the effect of educated platelets on burn wound healing process. 28 female wistar albino 200-220 gr rats were randomly divided into four groups. Group A1 rats(n:7) were the first-line burnt group from which blood samples are extracted to develop platelet-rich plasma(PRP) with the educated platelets that have a response to burn injury. Group B1 rats(n:7) were the unburnt group with ordinary platelets. Group A2 rats(n:8) were the second-line burnt group which was given PRP with educated platelets. Group B2 rats(n:6), as control group, were the second-line burnt group which was given PRP with ordinary platelets. Photos of rats' dorsum were taken by digital camera on the first day and 21st day of the study. Wound healing was determined by scar surface area. In the study group (Group A2) mean wound area was  53±37 mm², in the control group (Group B2) mean wound area was 114±55 mm² on the last day of the experiment. The sizes of the wounded areas were significantly lower in the study group compared with the control group (p: 0.039). Educated platelets seem to facilitate the recovery period of burn wound healing in rats.

2018 ◽  
Author(s):  
Yasuhiko Kaita ◽  
Takehiko Tarui ◽  
Hideaki Yoshino ◽  
Takeaki Matsuda ◽  
Yoshihiro Yamaguchi ◽  
...  

AbstractThe purpose of this study was to evaluate whether cryopreserved (frozen) adipose-derived regenerative cells (ADRCs) have a therapeutic effect on burn wound healing as well as freshly isolated (fresh) ADRCs.Full thickness burns were created on dorsum of nude mice and burn wound was excised. The wound was covered by artificial dermis with; (i) fresh ADRCs, (ii) frozen ADRCs, and (iii) PBS (control). The assessment for wound healing was performed by morphological, histopathological and immunohistochemical analyses.In vivo analyses exhibited the significant therapeutic effect of frozen ADRCs on burn wound healing up to the similar or higher level of fresh ADRCs. There were significant differences of wound closure, epithelized tissue thickness, and neovascularization between the treatment groups and control group. Although there was no significant difference of therapeutic efficacy between fresh ADRC group and frozen ADRC group, frozen ADRCs improved burn wound healing process in dermal regeneration with increased great type I collagen synthesis compared with fresh ADRCs.These findings indicate that frozen ADRCs allow us to apply not only quickly but also for multiple times, and the cryopreserved ADRCs could therefore be useful for the treatment of burn wounds in clinical settings.


2005 ◽  
Vol 5 (4) ◽  
pp. 50-57 ◽  
Author(s):  
Fahir Bečić ◽  
Nedžad Mulabegović ◽  
Zakira Mornjaković ◽  
Elvedina Kapić ◽  
Senad Prašović ◽  
...  

Experimental studies of burns require the use of different animal models. The aim of this work was to establish experimental model of thermal injuries and to evaluate the effects of topical agents on healing of the burn wounds. Forty female Wistar rats were randomly classified in 4 groups and isolated for 2 weeks before the onset of experiment. Animals were primarily anaesthetized with pentobarbital-sodium and then shaved (skin area of their back with diameters 5 cm x 5 cm). A round metal stamp with contact area of 5 cm2 and total weight of 100 g was heated up to 80°C and then applied without additional pressure on the depilated skin of the back for 14 seconds. This procedure produced a standardized burn wound. Induced burn wounds were immediately drowned in the 4°C-water for 3 s in order to maintain microcirculation. After the inducement of thermal injures, all rats were treated with 1% silver sulfadiazine cream, herbal topical preparations or were not treated at all. Burn wounds were treated twice a day until the healing completion. The result of treatment application was a significant reduction of burn wound diameters. Herbal topical preparations expressed positive therapeutic effects on the parameters of burn wounds. The efficiency of silver sulfadiazine cream in burn wound healing was significantly more expressed in comparison to healing process in control group of animals (p<0,001). We conclude that herbal topical preparations efficiently caused the completion of burn wound healing process without scar formation.


Author(s):  
Zeinab Mahdian ◽  
Fereshteh Amiri ◽  
Zohreh Mohammadi ◽  
Parviz Farzadinia ◽  
Fahimeh Safizadeh ◽  
...  

Background and Aims: Burn injury remain as a major medical problem throughout the world. This injury is accompanied with inflammatory and wound healing responses. Since royal jelly (RJ) has anti-inflammatory and wound healing activity therefore, the aim of this study was to evaluate the repairing effects of RJ on skin burn- damage. Materials and Methods: In an experimental study, 40 male Wistar rats (8 weeks old) were engaged. The animals were divided into five equal groups. Group 1 was considered healthy control. Group 2 (positive control) was treated topically with Silver Sulfadiazine Cream, group 3 received Eucerin as negative control, and group 4, 5 treated with RJ (10 and 30%). Sampling was performed after observing the second-degree burns on the first, seventh and fourteenth days. Then after 28 days, rats were sacrificed and their skin tissues were used for morphological and morphometric assessments. Results: The results of this study showed that the amount and arrangement of collagen type 1 protein was higher in the RJ treatment groups versus control group. Reconstruction and thickening of the epithelium in RJ treated groups confirmed therapeutic effects of RJ. In addition, RJ increased angiogenesis compared to the control group. The woundchr('39')s surface area was reduced in the RJ treatment groups compared to the control group. In addition, fibroblast cell proliferation was increased in the groups receiving RJ versus control. Conclusions: It could be concluded that, RJ induce wound healing effects and might be considered as potential treatment option to improve the burn wound healing.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Katarzyna Komosinska-Vassev ◽  
Pawel Olczyk ◽  
Justyna Kaźmierczak ◽  
Lukasz Mencner ◽  
Krystyna Olczyk

Bee pollen is a valuable apitherapeutic product greatly appreciated by the natural medicine because of its potential medical and nutritional applications. It demonstrates a series of actions such as antifungal, antimicrobial, antiviral, anti-inflammatory, hepatoprotective, anticancer immunostimulating, and local analgesic. Its radical scavenging potential has also been reported. Beneficial properties of bee pollen and the validity for their therapeutic use in various pathological condition have been discussed in this study and with the currently known mechanisms, by which bee pollen modulates burn wound healing process.


2012 ◽  
Vol 57 (No. 6) ◽  
pp. 287-292 ◽  
Author(s):  
AS Durmus ◽  
M. Yaman ◽  
HN Can

These experiments were conducted in order to compare the effects of extractum cepae, heparin, allantoin gel (CTBX) and silver sulfadiazine (SSD) cream on burn wound healing in rats. Thirty six adult, female Wistar albino rats were divided into three equal groups. A burn was made on the back of all rats. The burned areas in the first, second and third groups were covered with cold cream (control), SSD skin cream and CTBX twice a day, respectively. Seven and 14 days later, the rats were sacrificed and burned skin tissue samples were collected from the rats for histopathological examinations. Histopatological evaluations on the 7<sup>th</sup> and 14<sup>th</sup> days showed burn healing to be better in the CTBX and SSD groups with respect to the control group. The best burn wound healing was observed in the CTBX group (P &lt; 0.001). Wound healing was significantly different between the groups at days 7 and 14 (P &lt; 0.001). In conclusion, application of CTBX has significant positive effects on the healing of burn wounds in a rat model. &nbsp;


2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Le Hang Dang ◽  
Thi Hiep Nguyen ◽  
Ha Le Bao Tran ◽  
Vu Nguyen Doan ◽  
Ngoc Quyen Tran

Burn wound healing is a complex multifactorial process that relies on coordinated signaling molecules to succeed. Curcumin is believed to be a potent antioxidant and anti-inflammatory agent; therefore, it can prevent the prolonged presence of oxygen free radicals which is a significant factor causing inhabitation of optimum healing process. This study describes an extension of study about the biofunctional nanocomposite hydrogel platform that was prepared by using curcumin and an amphiphilic chitosan-g-pluronic copolymer specialized in burn wound healing application. This formular (nCur-CP, nanocomposite hydrogel) was a free-flowing sol at ambient temperature and instantly converted into a nonflowing gel at body temperature. In addition, the storage study determined the great stability level of nCur-CP in long time using UV-Vis and DLS. Morphology and distribution of nCur in its nanocomposite hydrogels were observed by SEM and TEM, respectively. In vitro studies suggested that nCur-CP exhibited well fibroblast proliferation and ability in antimicrobacteria. Furthermore, second- and third-degree burn wound models were employed to evaluate the in vivo wound healing activity of the nCur-CP. In the second-degree wound model, the nanocomposite hydrogel group showed a higher regenerated collagen density and thicker epidermis layer formation. In third degree, the nCur-CP group also exhibited enhancement of wound closure. Besides, in both models, the nanocomposite material-treated groups showed higher collagen content, better granulation, and higher wound maturity. Histopathologic examination also implied that the nanocomposite hydrogel based on nanocurcumin and chitosan could enhance burn wound repair. In conclusion, the biocompatible and injectable nanocomposite scaffold might have great potential to apply for wound healing.


2019 ◽  
Vol 2 (2) ◽  
pp. 80-88
Author(s):  
Haryanto Haryanto ◽  
Kanae Mukai ◽  
Nakajima Yukari ◽  
Mayumi Okuwa ◽  
Cau Kim Jiu ◽  
...  

The purpose of this study is to evaluate and clarify the effect of Indonesian honey, two types of Japanese honey and hydrocolloid dressing on wound healing process. Four groups of male mice were treated to produce two circular full-thickness skin wounds on the dorsum. They were then randomly allocated to receive daily Indonesian honey, Japanese honey (Buckwheat and Acacia honey) or hydrocolloid dressing as a control for treatment application. Macroscopic findings were observed from day 0 to 14 after wounding. Microscopic evaluation was assessed using qualitative analysis. The ratios of wound areas for honey groups on day 3 and 7 were smaller than those of the control group. Wound areas of honey groups gradually decreased to almost the same wound area as the control group on day 14, while the wound area of the control group peaked on day 5 and rapidly decreased until day 14. Microscopic finding that Indonesian honey was different with Japanese honey especially Buckwheat honey.


2010 ◽  
Vol 33 (6) ◽  
pp. 413 ◽  
Author(s):  
Muhammet G Turtay ◽  
Cemal Firat ◽  
Emine Samdanci ◽  
Hakan Oguzturk ◽  
Serkan Erbatur ◽  
...  

Purpose: Montelukast, a selective cysteinyl leukotriene D4-receptor antagonist, is used in the treatment of asthma. In a rat model, our aim was to investigate the effects of montelukast, alone or in combination with topical antibiotics, on local burn wound healing. Methods: Rats were randomly allocated to four groups after local burn development: Group 1; rats were left to secondary healing without treatment, Group 2; a dose of 10 mg/kg montelukast was given by gastric gavage once a day for 10 days, Group 3; rats were treated with topical pomade (bacitracin neomycin sulphate), and Group 4; rats were treat with a combination of topical antibiotic and montelukast (10 mg/kg were given by gastric gavage once a day for 10 days). Skin biopsies were taken on days 3, 10, 14, and 20 relative to burn induction. Results: Reepithelialization in the pomade and montelukast+pomade groups on the 10th day was significantly greater, in comparison with control and montelukast groups (p < 0.05). For the montelukast group, edema (on the 14th day) and angiogenesis, fibroblast proliferation, edema and macrophage infiltration (on the 20th day) were statistically improved in comparison with the control group (p < 0.05). For the montelukast+pomade group, angiogenesis, fibroblast proliferation and macrophage infiltration (on the 10th day), and angiogenesis, fibroblast proliferation, edema and macrophage infiltration (on the 14th and 20th days) were statistically improved in comparison with the control group (p < 0.05). Conclusion: In conclusion, montelukast was effective on burn wound healing. Moreover, the effect was amplified when combined with topical antibiotics applied in the early stage of burn wound healing.


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