scholarly journals Effects of inhibition of lymphangiogenesis by the vascular endothelial growth factor receptor 3 (VEGFR-3) inhibitor, MAZ51 on full thickness wounds in mice

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Kana Takada ◽  
Yukari Nakajima ◽  
Tamae Urai ◽  
Kanae Mukai ◽  
Kimi Asano ◽  
...  
Keyword(s):  
Wound Healing ◽  
Blood Vessels ◽  
Healing Process ◽  
Lymphatic Vessels ◽  
Growth Factor Receptor ◽  
Control Group ◽  
Wound Healing Process ◽  
Vascular Endothelial ◽  
Tissue Samples ◽  
Endothelial Growth Factor

We herein used MAZ51 to inhibit lymphangiogenesis and aimed to clarify the effect of inhibition of lymphangiogenesis on wound healing. BALB/c male mice were divided into two groups: the control group which was injected the dimethyl sulfoxide (DMSO), the experiment group was injected MAZ51 in the DMSO. All wounds were observed for 15 days and the wound areas were measured. Tissue samples were harvested on day 3, 7, 9, 11, 13 and 15, and subjected to immunostaining of blood vessels and lymphatic vessels. There are no significant differences between two groups in the wound area, the number of blood vessels and lymphatic vessels. The number of blood vessels peaked on day 7 in both groups as with previous studies, while the number of lymphatic vessels peaked on 13 or 15 in both groups. This result revealed delayed lymphangiogenesis in comparison with previous studies. The wound healing process in the control and experiment groups were similar, but both groups seemed delayed lymphangiogenesis comparing with previous studies. Injections of MAZ51 or/and DMSO did not affect angiogenesis, while they may affect lymphangiogenesis.

scholarly journals Increased Vascular Endothelial Growth Factor (VEGF) Expression in Wistar Rat Oral Mucosa Traumatic Ulcer due to Golden Sea Cucumber (Stichopus hermanni) Extract Gel

2019 ◽  
Vol 53 (6) ◽  
Author(s):  
Pratiwi Soesilawati ◽  
Eghia Laditra Ambarani ◽  
Yuliati ◽  
Aqsa Sjuhada Oki
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Wound Healing ◽  
Growth Factor ◽  
Sea Cucumber ◽  
Healing Process ◽  
Control Group ◽  
Wound Healing Process ◽  
Vascular Endothelial ◽  
Vegf Expression ◽  
Endothelial Growth Factor

Background. Traumatic ulcer is a lesion formed by a local tissue damage due to trauma on epithelial layer. Vascular Endothelial Growth Factor (VEGF) plays an important role in wound healing, especially in angiogenesis. Golden sea cucumber (Stichopus hermanni) is believed to accelerate the wound healing process. Objective. To prove that golden sea cucumber extract can increase VEGF expression in oral mucous membrane traumatic ulcer in rat.Method. S. hermanni extract was prepared by freeze-dry method, then an extract was made using PEG 400 or PEG 4000 at 40% and 80% concentrations, respectively, and applied to the animal’s oral wounds. The animals were divided into three groups: control; 40% S. hermanni extract gel; and 80% S. hermanni extract gel. The ulcers that formed on day 3 were rubbed gently with S. hermanni extract gel. After being sacrificed on day 4, sample tissues from the lower lips were prepared for histopathology to count the number of VEGF expression. The results were analyzed using the One-Way ANOVA statistical test. Results. A significant increase in the VEGF expression of 80% concentration S. hermanni extract gel was found compared with those in the control group (p=0.00). Conclusion. Golden sea cucumber extract (Stichopus hermanni) gel increased the VEGF expression in oral mucous traumatic ulcer.

scholarly journals Investigating the healing effect of the hydroalcoholic extract of pomegranate seed (Punica granatum) on the full thickness wound in rabbit

2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Ali Asghar Hemmati ◽  
Iran Rashidi ◽  
Sedigheh Dahanzadeh ◽  
Mahmoud Moeini
Keyword(s):  
Wound Healing ◽  
Healing Process ◽  
Punica Granatum ◽  
Negative Control ◽  
Control Group ◽  
Wound Healing Process ◽  
Hydroxyproline Content ◽  
Tissue Samples ◽  
Treatment Groups ◽  
Wound Recovery

Objective: This research designed to investigate the wound healing process with pomegranate hydroalcoholic seed extract (Punica granatum) in comparison with no-treatment, betamethasone, phenytoin and eucerin in rabbits. Methods: The positive group including groups that received phenytoin cream (1%) and topical eucerin, respectively, twice a day to complete wound healing. negative Control group did not obtain any treatment. Treatment groups were received cream of PSE (2, 5,7,10 w/w) in eucerin and 75% w/w as purified extract twice daily. In order to measure the percentage of wound healing, the zone of the wound was evaluated daily. Histological studies were done on the 7th and 15th days of treatment. Next, hydroxyproline content of wounds healed and tensile strength of wound tissue samples were measured. Results: The results demonstrated between PSE treatment groups and eucerin animals were statistically significant aadifferences (P<0.05) in most of the days reviewed. Treatment of Rabbits with 10% PSE had the best results (complete wound recovery in 12 days). Also, this treatment showed higher hydroxyproline content and higher tissue strength. Conclusion: This research reveals that the extract of 10% PSE administrated topically has the proper potential to induce wound recovery in the wound model of rabbits. In addition, 10% PSE accelerates the healing of the wound. Further study needs to clarify the results of this research.

scholarly journals Expression of Vascular Endothelial Growth Factor (VEGF) and New Blood Vessels Formation on Wound Incision Post Ropivacaine Administration in Animal Model

2020 ◽  
Vol 5 (7) ◽  
pp. 829-836
Author(s):  
Andri Subiantoro ◽  
Arie Utariani ◽  
Imam Susilo
Keyword(s):  
Wound Healing ◽  
Endothelial Cells ◽  
Blood Vessels ◽  
Wistar Rats ◽  
Healing Process ◽  
Critical Factor ◽  
Histological Evaluation ◽  
Control Group ◽  
Wound Healing Process ◽  
Impaired Wound Healing

Surgical incision wounds causing clinical pain. Inadequate postoperative pain management resulting in impaired wound healing. A critical factor in wound healing is angiogenesis. VEGF is one of the important factors and regulators of angiogenesis. The aim of this study is to analyze the effect of infiltration ropivacaine on VEGF expression, and the formation of new blood vessels, which is very instrumental in the wound healing process. Methods: Twenty-four Wistar rats were divided into two groups, and then superficial-thickness excisional wounds were created. One was treated by ropivacaine infiltration, and the other was not given ropivacaine infiltration as control group. Each of the groups was divided into two subgroups. Each of the subgroups composed of 6 Wistar rats based on the period of termination: 3rd, 7th day after wounding. Histological evaluation was done to determine the presence of new small blood vessels and the expression of VEGF of capillary endothelial cells. The data collected is then analysed by SPSS. Results: The administration of ropivacaine infiltration on superficial-thickness excisional wounds improved wound healing characterized by neovascularization formed and changed of expression of VEGF within cytoplasm or surface of endothelial cells Conclusion: The administration of ropivacaine infiltration has a beneficial effect on the healing process of superficial Wistar rats.

scholarly journals The Protective Effect of Snail Secretion Filtrate in an Experimental Model of Excisional Wounds in Mice

2021 ◽  
Vol 8 (8) ◽  
pp. 167
Author(s):  
Enrico Gugliandolo ◽  
Francesco Macrì ◽  
Roberta Fusco ◽  
Rosalba Siracusa ◽  
Ramona D’Amico ◽  
...  
Keyword(s):  
Wound Healing ◽  
Healing Process ◽  
Biological Properties ◽  
Helix Aspersa ◽  
Wound Healing Process ◽  
Vascular Endothelial ◽  
Wound Model ◽  
Tnf Α ◽  
Excisional Wound ◽  
Endothelial Growth Factor

Wound healing is a physiological process comprising several coordinated phases, such as inflammation, proliferation, and remodeling. For centuries, Helix aspersa Muller mucus has been known to have biological properties that are useful for treating skin disorders. In this study, we used a full-thickness excisional wound model in mice to test the hypothesis that Snail Secretion Filtrate (SSF) can improve the wound healing process. The mucus from Helix aspersa Muller was obtained mechanically by manually stimulating snails with a sterile cotton swab tip, and then the mucus was subjected to a series of filtrations to obtain SSF. After wounding, the mice were treated topically with SSF for 14 days. Our macroscopic results show that the SSF treatment significantly improved the speed and percentage of wound area closure. Furthermore, SSF improved several markers of proper wound healing, such as collagen deposition (Masson, COL3A1, matrix metalloproteinases (MMPs)) and the tissue remodeling process (α-sma, vascular-endothelial growth factor (VEGF)). SSF was also able to counteract the inflammatory process in injured wound tissue (myeloperoxidase (MPO) IL-1β, IL-6, TNF-α). In conclusion, our results show that SSF is able to enhance the speed and efficiency of wound healing and positively regulate several aspects of the wound healing process, such as the proliferative and remodeling phases.

scholarly journals BIOSYNTHESIS OF pH RESPONSIVE SHAPE MEMORY HYDROGEL AND ITS BIOMEDICAL POTENTIAL

2017 ◽  
Vol 6 (3) ◽  
pp. 946-952
Author(s):  
AHMAD MOHAMMED GUMEL
Keyword(s):  
Wound Healing ◽  
Shape Memory ◽  
Healing Process ◽  
Negative Control ◽  
Control Group ◽  
Wound Healing Process ◽  
Ph Responsive ◽  
Tissue Samples ◽  
Significant Difference ◽  
Biomedical Potential

Multifunctional hydrogels combining the capabilities of cellular pH responsiveness and shape memory, are highly promising for the realization of smart membrane filters, controlled drug released devices, and functional tissue-engineering scaffolds. Free radical biocatalytic polymerization catalyzed by immobilized Candida antarctica lipase B was used to fabricate the pH-responsive and shape memory hydrogel using medium-chain-length poly-3-hydroxyalkanoates-co-polyethylene glycol methacrylate (PHA-PEGMA) as macromer. The accelerative wound healing potential of the biosynthesized smart PHA based hydrogel was evaluated herein. The thermal stability of the macromere highly depends on the PEGMA fraction from 10 to 50% (mass). Similarly, the change in PEGMA fraction was also found to highly influence the hydrogel’s hydration rate (r) from 2.83 x 10-5 to 7.63  x 10-5  mL/s.  The hydrogel’s equilibrium weight swelling ratio (qe), protein release and its diffusion coefficient (Dm) were all found to be pH dependent. For example, increasing the phosphate buffer pH from 2.4 to 13 resulted in increased qe from 2 to 16 corresponding to the enlarging of network pore size (ξ) from 150 to 586 nm.The biomedical potential of the synthesized material based on its accelerative wound healing in rats was observed. Biochemical, histomorphometric and immunohistomorphometric analyses revealed a significant difference in area closure and re-epithelialization on days 7 and 14 in PPH or Intrasite® gel group compared to gum acacia or PEGMA-alone groups. Furthermore, wounds dressed with PPH or Intrasite® gel showed evident collagen deposition, enhanced fibrosis and extensively organized angiogenesis on day 14 compared to the negative control group. The findings suggested that topical application of PPH accelerated the rats’ wound healing process by improving angiogenesis attributed to the increased microvessel density (MVD) and expressions of VEGF-A in tissue samples. Thus, PPH has been demonstrated to be effective in the treatment of cutaneous wounds in rats, and could be a potential novel agent in the management and acceleration of wound healing in humans and animals.

scholarly journals Reparative Processes in Soft Tissues. Influence of Acidity

2017 ◽  
Vol 10 (1) ◽  
pp. 64-71
Author(s):  
Alexander Alekseevich Andreev ◽  
Anton Petrovich Ostroushko ◽  
Artyom Olegovich Chuyan ◽  
Artyom Romanovich Karapityan
Keyword(s):  
Wound Healing ◽  
Chronic Wounds ◽  
Soft Tissues ◽  
Ph Value ◽  
Healing Process ◽  
Wound Healing Process ◽  
Vascular Endothelial ◽  
The Usa ◽  
Endothelial Growth Factor ◽  
Influence Degree

Wound treatment is one of the most actual problems of modern surgery due to the increase of degree of injury, and also due to a sharp increase in quantity of emergencies of natural and technogenic disasters. Injuries of soft tissues of various etiology are annually diagnosed in the USA more than for 30 million people. To date there is a deep theoretical base developed for understanding of a pathophysiology of wound healing process, however still many questions remain debatable. The regeneration process is characterized by high metabolic activity and is based on biochemical reactions for which the pH value is of great importance. Changes of pH values of a wound during wound healing process are reflected in article. The authors noted the influence of pH on proteases and its inhibitors activity, expression of vascular endothelial growth factor (VEGF), fibroblast activity, keratinocytes proliferation, microbial expansion, and also on wound oxygenation; in response to invasion and dissemination of microorganisms. Materials of the researches that determined pH influence degree on the skin graft survival are represented. Generalizing, following conclusions can be done: pH performs as a modulator in healing both acute chronic wounds; acidic milieu in the inflammation phase and the first half of the proliferation phase occurs to the most conducive, positively affecting on necrolysis and granulation formation; alkaline milieu in the second half of inflammation phase and in phase of epithelization  promotes early closing of the tissue defect.

scholarly journals Penggunaan Scaffold Kitosan-Aloe Vera Terhadap Proliferasi Sel Fibroblas pada Penyembuhan Luka Pasca Pencabutan Gigi Cavia Cobaya

2018 ◽  
Vol 7 (2) ◽  
pp. 24
Author(s):  
Sularsih Sularsih ◽  
Fitria Rahmitasari
Keyword(s):  
Wound Healing ◽  
Healing Process ◽  
Aloe Vera ◽  
Growth Factor Receptor ◽  
Dental Extraction ◽  
Control Group ◽  
Wound Healing Process ◽  
Fibroblast Cells ◽  
Treatment Groups ◽  
And Control

Aloe vera has been investigated potential use in tissue engineering. Its bioactive compounds interact with growth factor receptor on the fibroblast and stimulate cells proliferation.   The aim of this study was to investigate the proliferation of fibroblast cells on wound healing process of Cavia cobaya dental extraction using scaffold combination chitosan and Aloe vera.  Cavia cobaya male with 300-350 grams of weight and in the age of 3 to 3.5 months. It divided into ten groups (n=5). For Treatment groups, Aloe vera scaffold(Av); Chitosan Scaffold (Ch); Scaffold combination chitosan-Aloe vera (Ch-Av) and scaffold combination chitosan- Aloe vera- hidroksiapatit(Ch-Av-HA) were applied into the socket of dental extraction.  For control group, which were not given scaffold. Cavia cobaya were decaputated at 7 and 14 days  and the jaw in the treated regions and control group were cut for Histopatology Anatomy examination to investigate the proliferation of fibroblast cells. Data were analyzed using One way Anova test. The proliferation of fibroblast cells were found higher in the group which given Av-Ch and Av-Ch-HA scaffold. The result  showed  significant differences in proliferation of fibroblast cells for 7 and 14 days observation  compared to control group (p<0,05). The application of  scaffold combination Chitosan and Aloe vera accelerate the wound healing process of Cavia cobaya dental extraction.

scholarly journals Production of vegetable oil blends and structured lipids and their effect on wound healing

2015 ◽  
Vol 51 (2) ◽  
pp. 415-427 ◽  
Author(s):  
Juliana Neves Rodrigues Ract ◽  
Fabiana Andreia Schäfer De Martini Soares ◽  
Hosana Gomes Rodrigues ◽  
José Ricardo Bortolon ◽  
Gilson Masahiro Murata ◽  
...  
Keyword(s):  
Wound Healing ◽  
Healing Process ◽  
Structured Lipids ◽  
Physiological Saline ◽  
Structured Lipid ◽  
Control Group ◽  
Wound Healing Process ◽  
Oil Blends ◽  
Inflammatory Phase ◽  
Canola Oils

<p>Two oil blends (sunflower/canola oils 85/15 (BL1) and canola/linseed oils 70/30 (BL2)), were prepared and enzymatically interesterified to be applied to surgically-induced wounds in rats. Following surgery, the animals were submitted to the Treatment with Physiological Saline (TPS) (control group), Blends (TBL), and Structured Lipids (TSL). The control group (TPS) received physiological saline solution for 15 days. In TBL, BL1 was administered during the inflammation phase (days 0-3) and BL2 in the tissue formation and remodeling phase (days 4-15). In TSL, Structured Lipid 1 (SL1) and Structured Lipid 2 (SL2) were used instead of BL1 and BL2, respectively. The aim of this study was to compare wound closure evolution among rats treated with the blends or structured lipids versus control rats treated with physiological saline. The wound healing process was evaluated by measuring the wound areas along the treatments and the concentrations of cytokines. An increase in the areas of wounds treated with the blends and structured lipids in the inflammatory phase was observed, followed by a steeper closure curve compared to wounds treated with physiological saline. The changes observed during the inflammatory phase suggest a potential therapeutic application in cutaneous wound healing which should be further investigated.</p>

Sign in / Sign up

Export Citation Format

Share Document