WOUND HEALING ACTIVITY OF SHEEP’S BLADDER EXTRACELLULAR MATRIX IN DIABETIC RATS

2018 ◽  
Vol 30 (02) ◽  
pp. 1850015
Author(s):  
Bahare Zihayat ◽  
Arash Khodadadi ◽  
Molook Torabi ◽  
Mohammad Mehdipour ◽  
Mohsen Basiri ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Wound Healing ◽  
Vascular Diseases ◽  
Diabetic Rats ◽  
Wound Dressings ◽  
Sprague Dawley ◽  
Citrate Buffer ◽  
Urinary Bladder Matrix ◽  
Major Factors ◽  
Wound Healing Activity

Diabetic ulcers (DUs) are a chronic, non-healing diabetes complication that leads to high hospital expenses and, in extreme cases, to amputation. Peripheral vascular diseases, diabetic neuropathy, abnormal cellular and cytokine activity are among the major factors that hinder diabetic wound healing. DUs represent an important challenge in the development of new and efficient wound dressings. The extracellular matrix (ECM) has been effectively used as a scaffold for constructive remodeling of multiple tissues in animal and human. Sheep’s urinary bladder matrix was evaluated for its wound healing activity in streptozotocin-induced diabetic rats using excision model. In this experiment, 48 male Sprague dawley rats weighing 220–250[Formula: see text]g were divided into four equal groups of control, vaseline, diabetics + (10[Formula: see text]mg/wound) and [Formula: see text] (50[Formula: see text]mg/wound). Diabetes was induced by intraperitoneal injection of streptozotocin (45[Formula: see text]mg/kg B.W) solved in 0.05[Formula: see text]M citrate buffer. Seven days after confirming diabetes statue, skin wounds were created on the back of each rat. Rate of wound healing and histological assay using hematoxylin and Eosin staining (H&E) were used for evaluation of the wound healing in different groups. ECM treated animals exhibited significant improvement in both wound area and rate of wound healing when compared to controls ([Formula: see text]). The ECM treated wounds were found to epithelize faster as compared to controls. The sheep’s ECM promotes significant wound healing in male diabetic rats and further studies on this activity in animal models and humans are suggested.

Wound healing activity of Pimpinella anisum methanolic extract in streptozotocin-induced diabetic rats

2019 ◽  
Vol 28 (Sup10) ◽  
pp. S26-S36
Author(s):  
Mohammad Hashemnia ◽  
Zahra Nikousefat ◽  
Adel Mohammadalipour ◽  
Mohammad-Mahdi Zangeneh ◽  
Akram Zangeneh
Keyword(s):  
Wound Healing ◽  
Dry Matter ◽  
Diabetic Rats ◽  
Control Group ◽  
Sprague Dawley ◽  
Post Injury ◽  
Pimpinella Anisum ◽  
Total Antioxidant ◽  
Healing Property ◽  
Wound Healing Activity

Objective: To assess the wound healing potential of Pimpinella anisum on cutaneous wounds in diabetic rats. Method: Full-thickness excisional wounds were made on the back of male, Sprague-Dawley rats with diabetes. The rats were randomly allocated into four treatment groups: 1ml basal cream; tetracycline (3%); Pimpinella anisum 10% for 14 days; and a control group. At days seven, 14 and 21 post-injury, five animals of each group were euthanised, and wounds were assessed through gross, histopathological and oxidant/antioxidant evaluations. Additionally, the dry matter and hydroxyproline contents of the skin samples were measured. Results: A total of 60 rats were used in the study. A significant decrease in the wound size was observed in treated animals with Pimpinella anisum compared with other groups during the experiment. Additionally, treatment with Pimpinella anisum decreased the number of lymphocytes and improved the number of fibroblasts at the earlier stages and increased a number of fibrocytes at the later stages of wound healing. Other parameters such as re-epithelialisation, tissue alignment, greater maturity of collagen fibres and large capillary-sized blood vessels revealed significant changes when compared with the control. Pimpinella anisum significantly reverted oxidative changes of total antioxidant capacity, malondialdehyde and glutathione peroxidase induced by diabetic wounds (p<0.05). Furthermore, it significantly increased the dry matter and hydroxyproline contents at various stages of wound healing (p<0.05). Conclusion: The present study showed that application of Pimpinella anisum extract promotes wound healing activity in diabetic rats. The wound-healing property of Pimpinella anisum can be attributed to the phytoconstituents present in the plant.

scholarly journals Synthesis And Evaluation Of Wound Healing Properties of HyDrO-DiAb Hydrogel Loaded With Green-Synthetized AGNPS: In Vitro And In Ex Vivo Studies

2021 ◽  
Author(s):  
Mariarosa Ruffo ◽  
Ortensia Ilaria Parisi ◽  
Marco Dattilo ◽  
Francesco Patitucci ◽  
Rocco Malivindi ◽  
...  
Keyword(s):  
Wound Healing ◽  
Diabetic Foot ◽  
Ex Vivo ◽  
Foot Ulcer ◽  
Vascular Diseases ◽  
Diabetic Foot Ulcer ◽  
Wound Dressings ◽  
Diabetic Patients ◽  
Wound Healing Activity

Abstract In diabetic patients, the presence of neuropathy, peripheral vascular diseases and ischemia, leads to the formation of foot ulcerations with a higher risk of infection because the normal response to bacterial infection is missing. In the aim to control and treat Diabetic Foot Ulcerations (DFUs), wound dressings able to absorb exudate, to prevent infections and to promote wound healing, are needed. For this reason, the aim of the present research was to synthetize a biocompatible hydrogel composed by Carboxymethylcellulose (HyDrO-DiAb) loaded with Silver nanoparticles (AgNPs) for the treatment of diabetic foot ulcer. In this study, AgNPs were obtained by a green synthesis and, then, were dissolved in CMC hydrogel that, after freeze drying process become a flexible and porous structure. The in vitro and in ex-vivo wound healing activity of the obtained HyDrO-DiAb hydrogel was evaluated.

scholarly journals A Comparison of Wound Healing Rate Following Treatment with Aftamed and Chlorine Dioxide Gels in Streptozotocin-Induced Diabetic Rats

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Fouad Al-Bayaty ◽  
Mahmood Ameen Abdulla
Keyword(s):  
Wound Healing ◽  
Chlorine Dioxide ◽  
Cellular Proliferation ◽  
Radical Scavenging ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Sprague Dawley ◽  
Thickness Skin ◽  
Group 2

Background and Purpose. This study aimed to evaluate the wound healing activities of Aftamed and chlorine dioxide gels in streptozotocin-induced diabetic rats. Experimental Approach. Forty-eight Sprague Dawley rats were chosen for this study, divided into 4 groups. Diabetes was induced. Two-centimeter-diameter full-thickness skin excision wounds were created. Animals were topically treated twice daily. Groups 1, the diabetic control group, were treated with 0.2 mL of sterile distilled water. Group 2 served as a reference standard were treated with 0.2 mL of Intrasite gel. Groups 3 and 4 were treated with 0.2 mL of Aftamed and 0.2 mL of chlorine dioxide gels respectively. Granulation tissue was excised on the 10th day and processed for histological and biochemical analysis. The glutathione peroxidase ,superoxide dismutase activities and the malondialdehyde (MDA) levels were determined. Results. Aftamed-treated wounds exhibited significant increases in hydroxyproline, cellular proliferation, the number of blood vessels, and the level of collagen synthesis. Aftamed induced an increase in the free radical-scavenging enzyme activity and significantly reduced the lipid peroxidation levels in the wounds as measured by the reduction in the MDA level. Conclusions. This study showed that Aftamed gel is able to significantly accelerate the process of wound healing in diabetic rats.

Concurrent increases in regional hematocrit and blood flow in diabetic rats: prevention by sorbinil

1992 ◽  
Vol 263 (3) ◽  
pp. H945-H950 ◽  
Author(s):  
S. P. Sutera ◽  
K. Chang ◽  
J. Marvel ◽  
J. R. Williamson
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Sciatic Nerve ◽  
Diabetic Rats ◽  
Sprague Dawley ◽  
Citrate Buffer ◽  
Ocular Tissues ◽  
Arterial Blood ◽  
Transit Times ◽  
Sprague Dawley Rats

These studies were undertaken to investigate the relationship between regional hemodynamic and hemorheological changes in the microvasculature of diabetic rats. Diabetes was induced in male Sprague-Dawley rats by injection of streptozotocin (55 mg/kg body wt). Control rats were injected with vehicle (sodium citrate buffer). A subgroup of diabetic rats was treated with an aldose reductase inhibitor (sorbinil) added to the diet in an amount to provide a daily dose of approximately 0.2 mmol.kg-1.day-1. Three weeks later all animals were anesthetized with thiobutabarbital sodium (Inactin, 100 mg/kg injected intraperitoneally) for assessment of blood flow (by injection of 15 microns microspheres) and regional hematocrit (determined by isotope-dilution techniques using 51Cr-labeled red blood cells and 125I-labeled bovine serum albumin) in selected tissues. The hematocrit in arterial blood samples was identical (approximately 46%) in controls and in diabetics. Regional hematocrits were much lower than arterial hematocrits in control rats and ranged from approximately 20% in ocular tissues, sciatic nerve, diaphragm, and skin to approximately 30% in brain, skeletal muscle, heart, and fat. Hematocrits of diabetic rats were markedly increased in ocular tissues, sciatic nerve, and skin but not in brain, heart, or skeletal muscle. These increases in regional hematocrit were associated with increases in blood flow and were largely prevented by sorbinil. Diabetes induced significant decreases in the mean transit times for whole blood and erythrocytes in all tissues examined except brain, retina, and skin.(ABSTRACT TRUNCATED AT 250 WORDS)

Wound healing activity of Terminalia bellerica Roxb. and gallic acid in experimentally induced diabetic animals

2019 ◽  
Vol 17 (2) ◽  
Author(s):  
Manish Pal Singh ◽  
Avneet Gupta ◽  
Siddhraj Singh Sisodia
Keyword(s):  
Wound Healing ◽  
Gallic Acid ◽  
Dead Space ◽  
Diabetic Rats ◽  
Fruit Extract ◽  
Standard Drug ◽  
Terminalia Bellerica ◽  
Wound Model ◽  
Wound Healing Activity ◽  
Experimentally Induced

AbstractBackgroundDiabetic wound are the major problem of society because of its delay healing of wound in hyperglycemia patient. The target of this study need to know the gallic acid compelling synergistically wound healing in diabetic animals as it is available in fruit extract or is more effective in given pure form in diabetic animals.MethodsThe wound healing effects of fruit extract Terminalia bellerica Roxb. and gallic acid were evaluated in experimentally induced hyperglycemic animals. In this investigation, excision and dead space wound models were used. The contraction wound %, re-epithelialization days, area of scar, histopathological examination of tissue, hydroxyproline level and weight of tissue granuloma were evaluated in this study.ResultsTerminalia bellerica fruit extract (400 mg/Kg) and gallic acid (200 mg/Kg) have been ingested by orally in streptozotocin induced diabetic rats. They were founded significantly (p<0.05) improved percentage wound contraction and decreased the size of scar area and days of re-epithelialization in excision wound model. Also, they were improved the level of hydroxyproline level in diabetic rats as compared to diabetic control group in dead space wound model. Standard drug vitamin C was also founded significantly improved wound healing activity in rats. These results suggested that treated groups accelerated wound healing activity in diabetic rat.ConclusionsThe observations and results obtained in the present study indicated the wound healing efficacy of fruit ethanolic extract and gallic acid in diabetic animals. Yet, the wound healing effect was increasingly reported with gallic acid.

Polycaprolactone nanofibers functionalized with placental derived extracellular matrix for stimulating wound healing activity

2018 ◽  
Vol 6 (42) ◽  
pp. 6767-6780 ◽  
Author(s):  
Arun Prabhu Rameshbabu ◽  
Sayanti Datta ◽  
Kamakshi Bankoti ◽  
Elavarasan Subramani ◽  
Koel Chaudhury ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Wound Healing ◽  
Cell Migration ◽  
Growth Factors ◽  
Inflammatory Responses ◽  
Impaired Wound Healing ◽  
Wound Healing Activity

Impaired wound healing is primarily associated with inadequate angiogenesis, repressed cell migration, deficient synthesis of extracellular matrix (ECM) component/growth factors, and altered inflammatory responses in the wound bed environment.

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