Evaluation of the cutaneous wound healing potential of tamanu oil in wounds induced in rats

2021 ◽  
Vol 30 (Sup9a) ◽  
pp. Vi-Vx
Author(s):  
Sevil S Erdogan ◽  
Tugba F Gur ◽  
Neslihan K Terzi ◽  
Bilal Dogan

Aims: Tamanu is a plant oil derived from the fruit and seeds of the Calophyllum inophyllum tree. Although scientific data on tamanu oil are limited, it is recommended worldwide for the treatment of abrasions, burns, diabetic wounds and scars. This study aimed to compare the wound healing efficacy of the topical use of tamanu oil with a reference drug in rats. Methods: Uniform wounds were induced on the dorsum of 21 rats, randomly divided into three groups. The control group received normal saline; the tamanu group received tamanu oil; and the centella group was treated with Centella asiatica. Wound healing was clinically evaluated using wound healing scoring and wound contraction. A biopsy was taken from the wound sites of each rat on days 7, 14 and 21 for histopathological evaluation. Results: Wound contraction was significantly lower in the tamanu group compared with the other groups. On day 7, the intensity of macrophage infiltration and mature granulation tissues were significantly higher in the centella and tamanu groups than in the control group. Fibrosis and collagen density were higher in the tamanu group than the other groups on day 7. Conclusion: In wound healing in rats, tamanu oil accelerated the formation of macrophage-granulation tissues-fibrosis and resulted in less wound contraction.

Author(s):  
Rotimi Sunday Ajani ◽  
Nurudeen Abiola Opadokun

Objective: One of the sequelae of diabetes mellitus is chronic foot ulcer. This study investigated wound healing propensity of the pulp and rind of Ananas comosus (a widely cultivated fruit with many health benefits) in diabetic wistar rats. Methods: The excisional wounds of twenty four adult wistar rats with induced diabetes in four groups of six each were dressed with the pulp powder (PPD), pulp extract (PED), rind powder (RPD) and rind extract (RED) of A. comosus daily till healed. Also the mean wound contraction rates were calculated from the wound areas every three days. Granulation tissue was biopsied from an animal per group on day 3, 6 and 9 for histopathological evaluation. Each of these groups had a corresponding equal number control group with similar procedures performed. Results: The mean wound contraction rates of the rind pulp diabetic (RPD) and rind extract diabetic (RED) groups paralleled those of their respective control group (RPC, REC) as they were not significantly different. Also amongst the diabetic groups, the rind of A. comosus demonstrated greater wound healing capability over the respective pulp counterpart (PPD, PED) as evidenced by significantly higher mean wound contraction rates. Histopathologic features of the granulation tissues and scars of the diabetic groups were similar to those of the control groups. Conclusion: Although, both the rind and pulp of unripe A. comosus either in extract or powder formulation were shown in this study to possess excellent healing potentials in diabetic wounds, the rind appeared to be better off and may be a viable alternative to the wound dressing materials currently in use in the management of diabetic wounds / ulcers.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10232
Author(s):  
Muniba Tariq ◽  
Hafiz Muhammad Tahir ◽  
Samima Asad Butt ◽  
Shaukat Ali ◽  
Asma Bashir Ahmad ◽  
...  

Background The present study aimed to prepare effective silk derived formulations in combination with plant extract (Aloe vera gel) to speed up the wound healing process in diabetic mice. Methods Diabetes was induced in albino mice by using alloxan monohydrate. After successful induction of diabetes in mice, excision wounds were created via biopsy puncture (6 mm). Wound healing effect of silk sericin (5%) and silk fibroin (5%) individually and in combination with 5% Aloe vera gel was evaluated by determining the percent wound contraction, healing time and histological analysis. Results The results indicated that the best biocompatible silk combination was of 5% silk fibroin and 5% Aloe vera gel in which wounds were healed in 13 days with wound contraction: 98.33 ± 0.80%. In contrast, the wound of the control group (polyfax) healed in 19 day shaving 98.5 ± 0.67% contraction. Histological analysis revealed that the wounds which were treated with silk formulations exhibited an increased growth of blood vessels, collagen fibers, and much reduced inflammation. Conclusion It can be concluded that a combination of Bombyx mori silk and Aloe vera gel is a natural biomaterial that can be utilized in wound dressings and to prepare more innovative silk based formulations for speedy recovery of chronic wounds.


Author(s):  
PRASANT KUMAR SABAT ◽  
SWETA PRIYADARSINI PRADHAN ◽  
RANDEEP PATRO

Objective: The current research is an attempt to evaluate the wound healing activity of Electrohomeopathic drug Green electricity (GE) in Wistar rats. No data have been reported till date on the wound healing effect of GE. Hence the present research focuses on the scientific investigation of the wound healing activity of GE in rats. Methods: Excision and incision wounds were inflicted upon albino rats. In the excision wound model, the wound contraction, Scar residue, area and time of complete epithelization were measured subsequently on day 0, 3,6,9,12,15, 18 and 21 after inflicting the wound. Wound contraction was calculated as a percentage change in the initial wound size. In the incision wound model, the tensile strength was measured on the 10th post wounding day. Results: It was noted that the effect produced by the GE Showed significant wound healing (p<0.01) in all wound models when compared to the control group. In the case of the excision model, GE statistically increases the wound contraction rate and in the case of the incision model GE showed high tensile strength as compared to the control group. In both cases the epithelization period was significantly decreased as compared to control. Almost 100% wound protection was achieved by GE in 21 d as compared to control. Conclusion: GE (ointment) showed significant wound healing activity (p<0.01) in both the excised wound model and incision wound model in rats.


Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1108
Author(s):  
Edorta Santos-Vizcaino ◽  
Aiala Salvador ◽  
Claudia Vairo ◽  
Manoli Igartua ◽  
Rosa Maria Hernandez ◽  
...  

Negatively charged microspheres (NCMs) represent a new therapeutic approach for wound healing since recent clinical trials have shown NCM efficacy in the recovery of hard-to-heal wounds that tend to stay in the inflammatory phase, unlocking the healing process. The aim of this study was to elucidate the NCM mechanism of action. NCMs were extracted from a commercial microsphere formulation (PolyHeal® Micro) and cytotoxicity, attachment, proliferation and viability assays were performed in keratinocytes and dermal fibroblasts, while macrophages were used for the phagocytosis and polarization assays. We demonstrated that cells tend to attach to the microsphere surface, and that NCMs are biocompatible and promote cell proliferation at specific concentrations (50 and 10 NCM/cell) by a minimum of 3 fold compared to the control group. Furthermore, NCM internalization by macrophages seemed to drive these cells to a noninflammatory condition, as demonstrated by the over-expression of CD206 and the under-expression of CD64, M2 and M1 markers, respectively. NCMs are an effective approach for reverting the chronic inflammatory state of stagnant wounds (such as diabetic wounds) and thus for improving wound healing.


Author(s):  
Martha Orendu Attah ◽  
Tonye Watson Jacks ◽  
Attah Jacob ◽  
Otong Eduitem ◽  
Barnabas John

Background: In the present research study, the rate of cutaneous wound healing and contraction rate in healthy rabbits using Aloe vera pulp was studied.Methods: Ten healthy rabbits were used for the study. They were divided into two groups consisting of five rabbits each. Cutaneous wounds were made on the lumbar region of each rabbit using a template which ensured that the wounds were of the same size in all the rabbits. 5ml of Aloe vera gel was applied to the wounds of the animals in the test group, while nothing was applied to the wound area of the animals in the control group. The wound area in each group was measured for a period of 21 days, using a venire caliper and tracing paper which was used to trace the wound area. Tissue samples were removed from the wound area in both experimental and control groups and subjected to routine histological analysis, also, morphometric analysis was performed.Results: The rate of wound contraction and mean centripetal contraction was calculated in both groups and graphically represented using Microsoft Excel. The results showed that animals who were treated with Aloe vera gel had a greater wound contraction rate, as well as rapid wound closure. The micrographs showed a thicker epithelial layer, with thinner collagen fibers in the dermis of experimental animals compared to the control group. There was also an abundant capillary bed at the dermal-epidermal junction in the experimental group, compared to the control group.Conclusion:  Aloe vera may increase the rate of wound healing by accelerating epithelial migration, and may also play a role in neo-vascularization of the newly healed area.Keywords: Aloe vera, Cutaneous Wounds, Rabbits, Wound Contraction, Wound Healing


Author(s):  
Chinenye Nnenna Ugwu ◽  
Ezinwanne Nneoma Ezeibe ◽  
Chinekwu Sherridan Nwobi ◽  
Chinelo Charity Eze ◽  
Somtochukwu Amuche Evurani ◽  
...  

BACKGROUND: Burn wounds are inescapable life events especially in low income areas. Contamination of the burn wound site results in localized wound infection, hence the need for potent phytochemicals readily available for wound healing. The use of stem bark of Anthocleista djalonensis efficacy for burn wound has not been evaluated to the best of our knowledge. AIM: The study is aimed at evaluating and comparing the wound healing potential of ointment base of leaves and Stem bark of Anthocleista djalonensis on burn wounds created on wistar albino rats. METHODS: The leaves and Stem bark of Anthocleista djalonensis collected were extracted using 95%v/v methanol and phytochemical analysis conducted. Simple ointments of varying concentrations were formulated to screen for wound healing activity using the burn wound model on experimental rats grouped into six (n=4). Group 1 was treated with silver sulfadiazine cream (positive control), group 2 with ointment base (negative control), group 3 with 1% stem bark extract ointment, group 4 with 2% stem bark ointment, group 5 with 1% leave extract ointment, and group 6 with 2% leave extract ointment.  All animals were anesthetized before the creation of burn wounds. Measurement was taken on day zero and the wound was left untreated for 48 hours in order to allow bacterial colonization before daily treatment of the wound for 16 days. RESULTS: The result of the phytochemical screening revealed that both extract of Anthocleista djalonensis contains flavonoids, tannins and saponins. On day 2, 1% stem bark, 2% stem bark and 1% leaf extract had 16%, 15%, and 10% wound contraction respectively which was higher than the 8.5% wound contraction of silver sulfadiazine. Also as the concentration of the extract increased, the wound healing effect also increased as seen by the percentage wound contraction on day 16 for all treatment.  CONCLUSION: The findings of the study have shown that methanolic extracts of stem bark and leaf of Anthocleista djalonensis contained bioactive constituents which have burn wound healing activity. The stem bark extract showed better activity when compared with the leaf extract and also the positive control (silver sulfadiazine).    


2019 ◽  
Vol 34 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Seyit Mehmet Ceylan ◽  
Erdal Uysal ◽  
Mehmet Sokucu ◽  
Efe Sezgin ◽  
Mahmut Alper Kanmaz ◽  
...  

Background Halofuginone is an alkaloid febrifugine analogue and bioactive molecule that was isolated incidentally from the Dichroa febrifuga plant. The therapeutic efficacy of halofuginone in parasitic infections, scleroderma, inflammation, and fibrosis-related diseases, as well as in some types of cancer, has been previously reported. The effects of halofuginone on nasal mucosal damage are not yet known. Objective The aim of this study was to investigate the potential effect of topically applied halofuginone on wound healing in the mechanically injured nasal mucosa of rats. Methods A unilateral mucosal wound was created in the nasal cavity of 32 rats (aged 4 weeks) using the brushing technique. These rats were randomly divided into 4 groups. Although the control group did not receive an intervention, a dry pad, a saline-impregnated pad, or a pad impregnated with halofuginone were placed in the rats of the other 3 groups and left for 5 minutes. Rats were sacrificed on the 14th day, and a histological examination was performed. The nasal mucosa was assessed via hematoxylin-eosin and Masson’s trichrome staining. Results There were no statistically significant differences in epithelial thickness, inflammation, goblet cell formation, and epithelial disarray values between the halofuginone group and the control group ( P > .05). The subepithelial thickness was significantly decreased in the saline-treated group and the halofuginone-treated group ( P < .05), but a significantly lower level of subepithelial fibrosis was only observed in the halofuginone group compared to the other groups ( P < .05). Conclusions Topical halofuginone administration reduces the development of fibrosis and subepithelial edema after experimentally induced nasal mucosal injury, but it does not exert therapeutic or preventive effects on epithelial damage, inflammation, and goblet cell hyperplasia.


INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (04) ◽  
pp. 70-75
Author(s):  
M. P. Singh ◽  
S Vashisht ◽  
V. Chawla ◽  
P. Kumari ◽  

Aim of the present study was to explore the wound healing potential of Triphala extract. Triphala ointment (15% w/w) was used in the study for excision wound model. For dead space wound model Triphala extract (200 mg/kg) was administered orally. Extract of Triphala topically applied in excision wound model was found to possess wound healing property. On day 11th, the extract treated animals showed wound contraction to the extent of 87.63% and 94.77%, compared with control group of animals. In dead space wound model, oral administration of the extract was found to increase the wet and dry granuloma weight of tissue. The extract treated animals showed high quantity of hydroxyproline content when compared with the control group animals. The topical and oral administration of Triphala extract promotes diabetic wound healing in streptozotocin induced diabetic rats with increased rate of wound contraction and collagen turnover.


2020 ◽  
Vol 9 (1) ◽  
pp. 21
Author(s):  
I Made Subhawa Harsa

Wound refers to partly damage or loss of body tissue. One way that has been used by the people in helping the process of wound healing is the use of medicinal plants, such as gotu kola (Centella asiatica). Gotu kola (Centella asiatica)  is kind of plant that found almost in all territories of Indonesia which functions as a cell revitalizing substance which quickens wound healing those are burnt, skin ulcer and to prevent keloid. This study is aimed to know the effect of giving gotu kola leaf extract (Centella Asiatica) against to the healing of the wound incision on male white rats (Rattus Norvegicus) wistar strain. This study is a pure experimental research using the randomized post test only control group design with the subjects are 30 male white rats (Rattus norvegicus) wistar strain that were divided into 3 groups, namely K1, K2, and K3. The incision wound were made on the back of all white rat in each group with a length of ± 2 cm and a depth of ± 2 mm. The wound in the negative control group (K1) was not given any substance; in the positive control group (K2) was given povidone iodine 10%; and in the treatment group (K3) was given gotu kola leaf extract at a dose of 37,5 mg/150 grBB. The study was done for 10 days. Furthermore, wound observation and monitoring is held. Then the results were processed by using One Way ANOVA. The result study of wound incision healing on male white rats (Rattus norvegicus) wistar strain shows that there is significant difference among the negative control group (K1), the positive control group (K2), and the treatment group (K3) on One Way ANOVA test which significant p-value are 0,027 (p < 0.05). The result of Post-Hoc LSD test also shows a significant differences among the K1 and K3 groups, and K2 and K3 groups which significant p-values are 0,011 and 0,038 (p < 0,05). From these results, it can be concluded that gotu kola leaf extract (Centella asiatica) effective on quickens wound healing of the wound incision on male white rats (Rattus norvegicus) wistar strain.


2017 ◽  
Vol 9 (3) ◽  
pp. 306-311 ◽  
Author(s):  
DESAK MADE MALINI ◽  
MADIHAH MADIHAH ◽  
FITRI KAMILAWATI ◽  
NINING RATNINGSIH ◽  
KARTIAWATI ALIPIN ◽  
...  

Malini DM, Madihah, Kamilawati F, Ratningsih N, Alipin K, Iskandar J. 2017. Topical treatment of ointment containing ethanol extract of Archidendron pauciflorum fruit peel on the wound healing in streptozotocin-induced diabetic mice. Nusantara Bioscience 9: 306-311. Diabetic wounds lead to severe tissue damage and are difficult to cure. One alternative medicine known well by local Indonesian communities to treat diabetic wounds is the fruit peel of djengkol. This study aimed to evaluate the ointment containing ethanol extract of djengkol fruit peel to accelerate wound healing process in the skin of streptozotocin-induced diabetic mice. The method was experimental using completely randomized design with six treatments and four replications. Diabetes was induced by intraperitoneal injection of streptozotocin 180 mg/kg BW. Mice with blood glucose level ≥150 mg/dL were used for diabetic mice models. The incision wound created at dorsolateral region of shaven skin at ±1 cm2 using sterile scissors. The ointment containing extract was applied topically to the diabetic mice wounds at concentration of 5%, 10% and 15%, as well as Betadine® as the reference group. The ointment basis was applied to the wound of diabetic mice as a positive control and to the wound of non-diabetic mice as a negative control. The treatment was done twice a day for 14 days. The results showed that topical application of ointment containing ethanol extract of djengkol fruit peel at concentration of 10% gave significant recovery (p<0.05) on the wounded skin by the enhancement of re-epithelization and granulation tissue, as well as the increase of capillary number and collagen density which were higher than other treatments and comparable to negative control group. It was concluded that the topical application of ointment containing ethanol extract of djengkol fruit peel can support the healing of diabetic wounds.


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