scholarly journals Therapeutic laser with or without andiroba oil in treating cutaneous wounds by second intention in Wistar rats

2021 ◽  
Vol 15 (4) ◽  
pp. 316-322
Author(s):  
Romulo Silva de Oliveira ◽  
Mayara Marques Pereira Fernandes ◽  
Millena do Nascimento Mesquita ◽  
Ana Caroline Lima da Cruz ◽  
Charles Pelizzari ◽  
...  

This study’s objective was to evaluate the efficacy of treating cutaneous wounds in Wistar rats using a therapeutic laser alone or in combination with topical application of andiroba oil. Twenty-four Wistar rats were distributed into three groups (T4, T7, and T14) of eight animals. To prepare the wounds, a total of four skin fragments per animal were removed using an 8-mm cutaneous biopsy punch. Each animal was inflicted with four surgical wounds, and each wound was subjected to one treatment. The treatments were as follows: saline solution (control, Cn); laser therapy (L), using a 660-nm laser wavelength and 10-J/cm² energy density; fresh andiroba oil (An); laser therapy followed by topical andiroba oil administration (LAn). All treatments in all animals were conducted for 4- (T4), 7- (T7), and 14- (T14) day periods. Edema and purulent secretion were observed in three animals in the An group, and the appearance of an exuberant crust was also observed in one animal from the same group. The LAn group presented the worst wound healing rate and contraction velocity (p < 0.05). Microscopically, there was no difference between groups regarding the presence of inflammation, necrosis, formation of granulation tissue, fibroplasia, and the presence of types 1 and 3 collagen at different treatment times. It was concluded that laser treatment of cutaneous wounds in conjunction with andiroba oil application did not present benefits in reference to the 0.9% NaCl.

Author(s):  
Eline Lima Borges ◽  
José Ferreira Pires Júnior ◽  
Mery Natali Silva Abreu ◽  
Vera Lúcia de Araújo Lima ◽  
Patrícia Aparecida Barbosa Silva ◽  
...  

ABSTRACT Objective: to estimate the healing rate of complex surgical wounds and its associated factors. Method: retrospective cohort study from 2003 to 2014 with 160 outpatients of a Brazilian university hospital. Data were obtained through consultation of the medical records. Survival function was estimated using the Kaplan-Meier method and Cox regression model to estimate the likelihood of the occurrence of healing. Results: the complex surgical wound healing rate was 67.8% (95% CI: 60.8-74.9). Factors associated with a higher likelihood of wound healing were segmentectomy/quadrantectomy surgery, consumption of more than 20 grams/day of alcohol, wound extent of less that 17.3 cm2 and the length of existence of the wound prior to outpatient treatment of less than 15 days, while the use of hydrocolloid covering and Marlex mesh were associated with a lower likelihood of healing. Conclusion: the wound healing rate was considered high and was associated with the type of surgical intervention, alcohol consumption, type of covering, extent and length of wound existence. Preventive measures can be implemented during the monitoring of the evolution of the complex surgical wound closure, with possibilities of intervention in the modifiable risk factors.


2020 ◽  
Vol 2 (3) ◽  
pp. 01-03
Author(s):  
Ravi Chittoria

Pressure ulcer or pressure sore is one of the complications seen in bedridden patients. Management of these ulcers is often challenging. But there is no well-established method that accelerates the wound healing rate. Various adjunctive methods are used for wound bed preparation before definitive reconstruction plan is made. Here we describe our experience in the role of insulin therapy as an adjunct in the management of pressure sores.


2013 ◽  
Vol 61 (10) ◽  
pp. E2105
Author(s):  
Norihiro Kobayashi ◽  
Muramatsu Toshiya ◽  
Tsukahara Reiko ◽  
Ito Yoshiaki ◽  
Hirano Keisuke

2018 ◽  
Vol 47 (1) ◽  
pp. 201-211 ◽  
Author(s):  
Takahiro Mizoguchi ◽  
Koji Ueno ◽  
Yuriko Takeuchi ◽  
Makoto Samura ◽  
Ryo Suzuki ◽  
...  

Background/Aims: We have developed a mixed-cell sheet consisting of autologous fibroblasts and peripheral blood mononuclear cells with a high potency for angiogenesis and wound healing against refractory cutaneous ulcers in mouse and rabbit models. To increase the effectiveness of the mixed sheet, we developed a multilayered mixed sheet. Methods: We assessed the therapeutic effects of multilayered sheets on cutaneous ulcers in mice. Growth factors and chemokines were assessed by enzyme-linked immunosorbent assay. Angiogenesis and fibroblast migration were measured by using tube formation and migration assays. Wound healing rate of cutaneous ulcers was evaluated in mice with diabetes mellitus. Results: The concentration of secreted vascular endothelial growth factor, hepatocyte growth factor, transforming growth factor, C-X-C motif chemokine ligand (CXCL)-1, and CXCL-2 in multilayered sheets was much higher than that in single-layered mixed-cell sheets (single-layered sheets) and multilayered sheets of fibroblasts alone (fibroblast sheets). The supernatant in multilayered sheets enhanced angiogenic potency and fibroblast migration compared with single-layered and fibroblast sheets in an in vitro experiment. The wound healing rate in the multilayered sheet-treated group was higher compared with the no-treatment group (control) at the early stage of healing. Moreover, both vessel lumen area and microvessel density in tissues treated with multilayered sheets were significantly increased compared with tissues in the control group. Conclusion: Multilayered sheets promoted wound healing and microvascular angiogenesis in the skin by supplying growth factors and cytokines. Accordingly, our data suggest that multilayered sheets may be a promising therapeutic material for refractory cutaneous ulcers.


Author(s):  
Jie Zhang ◽  
Xiaolin Feng ◽  
Yuxia Wang ◽  
Dakang Chen ◽  
Bo Zhang

Research purposes: Autologous platelet-rich plasma gel (Platelet-Rich Plasma, PRP) was prepared and used for transplantation for the treatment of traumatic trauma wounds of extremities. Explore platelet-rich plasma gel (PRP) to promote the healing of exposed bone and tendon wounds. Methods: Fifteen patients with extremity bone and tendon exposed wounds were treated with autologous platelet-rich plasma gel (PRP) transplantation to observe the wound healing rate and wound healing time. Results: Among the 15 patients, 8 cases healed directly, 7 cases had active granulation growth, and second-stage skin graft wound healing; the wound healing rate was 100%, and the average wound healing time was 36 days. Conclusion: Autologous platelet-rich plasma gel (PRP) transplantation for the treatment of traumatic trauma hard wounds of the extremities, can inhibit the bacterial growth of the wounds, effectively promote the repair of soft tissue defects and accelerate the healing of bone and tendon wounds of the extremities.


2021 ◽  
Vol 31 (3) ◽  
pp. 20-26
Author(s):  
Undraa Bold ◽  
Gerelt Gaadan ◽  
Byambajav Tseesuren ◽  
Undrakhbayar Tserendorj ◽  
Naranmandakh Shinen

As a result of previous studies, we have established the “Fomitop” gel with extracts from the fungus Fomitopsis officinalis has antibacterial properties against some strains such as Staphylococcus aureus, Micrococcus luteus, Bacillus subtilis, and Enterococcus faecalis. Based on these results, we have conducted this research to identify the “Fomitop” gel has a healing effect on the burn wound. For this purpose, were conducted the comparative analysis of healing effects of the “Fomitop” gel with the standard ointment - silver sulfadiazine cream, on artificial burn wounds created on the back skin of a mouse. Total 27 Balb/c mice were included in the experiment and they are divided into three equivalent groups. In the first treatment, the group was applied to the “Fomitop” gel, the second standard group was applied silver sulfadiazine cream, and the third control group untreated by any ointment. On the 1, 5, 12, 21, and 35th days after wound creation, were taken the histological samples from the wound and near areas of the wound. The wound healing process was evaluated based on histological analysis. The burn wounds of the treatment group of mice (applied “Fomitop” gel) fully healed on the 33rd day of the experiment. While the wound healing rate of the standard group of mice (applied silver sulfadiazine cream) was 92.2% on the same day. And the control group mice wound healing rate was 78% (p<0.05). The results of the histological analysis were confirmed an active regeneration of epithelial cells and wound healing in the treatment group. It was good compared to the standard and control groups. As a result of this study, were determined the “Fomitop” gel application is accelerated the tissue regeneration of burn wounds and so on heals wound in a short time. Фомитоп гелин түрхлэгийн түлэнхийн шарханд үзүүлэх үйлдлийн судалгаа Бид өмнө гүйцэтгэсэн хар модны агил мөөгнөөс бэлтгэсэн “Фомитоп” гелин түрхлэгийн антибиотик төст үйлдлийг шалгах шинжилгээгээр Staphylococcus aureus, Micrococcus luteus, Bacillus subtilis, Enterococcus faecalis зэрэг бактерийн ургалтыг дарангуйлдаг болохыг илрүүлсэн. Уг үр дүнд үндэслэн “Фомитоп” гелин түрхлэг шархыг идээлүүлэхгүйгээр эдгээх боломжтой эсэхийг тогтоох энэхүү судалгааг гүйцэтгэв. Энэ зорилгоор “Фомитоп” гелин түрхлэгийг хулганы нурууны арьсанд үүсгэсэн химийн гаралтай түлэгдэлтийн зохиомол шарханд үзүүлэх нөлөөг стандарт эм болох мөнгөний сульфадиазин түрхлэгтэй харьцуулан судлав. Судалгаанд Balb/c үүлдрийн нийт 27 цагаан хулганыг тэнцүү тоогоор гурван бүлэгт хувааж хамруулав. Үүнд: 1-р бүлэг-агил мөөгнөөс бэлтгэсэн гелин түрхлэгийг хэрэглэсэн туршилтын бүлэг, 2-р бүлэг-мөнгөний сульфадиазин түрхлэг хэрэглэсэн стандарт бүлэг, 3-р бүлэг түрхлэг хэрэглээгүй хяналтын бүлэг. Шарх үүсгэснээс хойш 1, 5, 12, 21, 35 хоногуудад шарх, түүний ойр орчмын эдээс дээж авч гистологийн шинжилгээ хийж, шархны эдгэрэлтийг үнэлсэн. “Фомитоп” гелин түрхлэгийг хэрэглэсэн эмчилгээний бүлгийн түлэнхийн шарх туршилтын 33 дахь хоногт бүрэн эдгэрсэн бол мөнгөний сульфадиазин түрхлэг хэрэглэсэн стандарт бүлгийн шархны эдгэрэлт тухайн хоногт 92.2%, харин эм хэрэглээгүй хяналтын бүлгийн шархны эдгэрэлт нь 78% байлаа (p<0.05). Мөн гелин түрхлэг хэрэглэсэн бүлэг нь стандарт болон хяналтын бүлэгтэй харьцуулахад түлэнхийн шархны эдгэрэл, хучуур эсийн нөхөн төлжилт идэвхтэй явагдаж байгаа нь гистологийн шинжилгээний үр дүнгээр батлагдав. Судалгааны үр дүнд “Фомитоп” гелин түрхлэг нь түлэнхийн шархны нөхөн төлжилтийг хурдасгах, улмаар богино хугацаанд аниулах үйлдэл үзүүлж байгааг тогтоов.  Түлхүүр үг: Агил мөөг, мөнгөний сульфадиазин, гистологийн шинжилгээ, шархны эдгэрэл


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Li Zhang ◽  
Simei Wang ◽  
Meihua Tan ◽  
Hongwei Zhou ◽  
Ying Tang ◽  
...  

Objective. The purpose of this study was to evaluate the wound healing efficacy of oxidized regenerated cellulose (ORC)/collagen dressing and ORC/collagen/silver-ORC dressings compared to standard of care or control in treatment of chronic skin wounds such as diabetic foot ulcers (DFUs), venous leg ulcers (VLUs), and pressure injuries sore ulcers (PISUs). Methods. An electronic search was carried out in four popular databases PubMed, Scopus, Embase, and CENTRAL to identify thirteen included studies, comparing the clinical efficacy of ORC/collagen dressings when compared to control in management of chronic skin wounds, especially DFUs, VLUs, and PISUs, and skin graft donor site wounds. Results. Consolidated data from thirteen comparative clinical studies undertaken for management of DFUs, VLUs, and PISUs showed favorable outcomes towards use of ORC/collagen compared to other traditional and hydrocolloid foam dressings in terms of wound healing rate ( P = 0.02 ) and percentage wound relative reduction ( P = 0.003 ). The time taken to achieve complete wound healing in the included studies did not show any statistical significant difference ( P = 0.24 ). There was no significant difference in adverse events between ORC/collagen-treated group and comparative group ( P = 0.19 ). Conclusion. ORC/collagen wound dressings are beneficial in terms of improved wound healing rate and percentage wound relative reduction compared to already existing traditional standard of care with non-MMP, inhibiting biomaterials such as moistened gauze, autologous growth factors, hydrocolloid foam dressings, or ovine extracellular matrix.


2004 ◽  
Vol 19 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Ana Katarina Menezes da Cruz ◽  
Wogelsanger Oliveira Pereira ◽  
Elizeu Antunes dos Santos ◽  
Maria Goretti Freire Carvalho ◽  
Aldo da Cunha Medeiros ◽  
...  

PURPOSE: To compare the effect of hyaluronic acid (HA) and of AG on the healing of intestine wounds. METHODS: The semi-purified extract of the eggs of the mollusc was obtained by fractionation with ammonium sulfate and purification for ion-exchange chromatography. The obtained galactans were eluted in water (neutral galactan) and in 0.1 and 0.2M NaCl (acidic galactans). The in vivo study was performed with 45 "Wistar" rats, separated in three groups (n=15). Solutions containing HA 1%, GA 1% or saline solution 0,9%, was placed topically on the sutures of wounds in the small intestine of the rats. After 05, 10 and 21 days the animals were sacrificed and biopsy of the healing tissue was done. RESULTS: The hystologic grading was more significant for HA and AG groups when compared to the group C. AG stimulated the appearance of macrophages, giant cells and increase in the concentration of collagen in the area of the wound when compared to HA. CONCLUSION: The topical use of GA in intestinal wounds promoted the anticipation of events that are important in the wound healing.


Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1131
Author(s):  
Nouf N. Mahmoud ◽  
Lubna M. Al-Kharabsheh ◽  
Enam A. Khalil ◽  
Rana Abu-Dahab

Herein, the cytotoxicity, cellular uptake and wound healing of human dermal fibroblasts were investigated upon treatment with gold nanorods (GNR) decorated with different ligands. Neutral and cationic poly ethylene glycol (PEG)-decorated GNR demonstrated the least cytotoxicity and cellular internalization, while anionic- and bovine serum albumin (BSA)-coated GNR revealed significant cytotoxicity and cellular uptake into human dermal fibroblasts. The cell scratch test demonstrated that neutral, cationic PEGylated GNR and anionic-decorated GNR have accelerated the wound healing rate in vitro after 24 h of incubation with scratched human dermal fibroblasts compared to control, while there was a drastic retardation of wound healing rate of scratched fibroblasts upon exposure to BSA-GNR accompanied with a significant release of the inflammatory cytokine; interlukin-1β (IL-1β). The cytotoxicity of GNR against the dermal cells and their ability to enhance the wound healing in vitro are greatly linked to their surface modifications.


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