Combination of the stromal vascular fraction and platelet-rich plasma accelerates the wound healing process: pre-clinical study in a Sprague-Dawley rat model

The purpose of this study was to determine the wound healing effect of Labisia pumila in the ovariectomized rat model. Ninety-nine Sprague Dawley female rats equally divided into nine groups; where five were control groups, and four were treated groups. The dressing was changed daily, starting from the wound induction until complete healing. The percentage of wound contraction was measured on day 0, 2, 5, 8, 9, 10, 11, 12 and 13. Three rats were sacrificed from each group on day 2, 5 and 8 respectively for evaluating of histological assessments. Wounds dressed with extract showed considerable healing and significantly healed faster compared to all control groups (p<0.05). Moreover, histological analysis revealed remarkable reduction in the scar width correlated with the enhanced collagen content and fibroblast cells, accompanied by a reduction of inflammatory cells in the granulation tissues. In conclusion, L. pumila may promote wound healing in postmenopausal rat model.Video Clip of Methodology:Ovariectomy and punch biopsy: 3 min 11 sec: <a href="https://www.youtube.com/v/IlFrHeww5Jo">Full Screen</a> <a href="https://www.youtube.com/watch?v=IlFrHeww5Jo">Alternate</a>

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Effects of anticoagulant drugs on wound healing process in a rat model: a comparative study

Journal of Wound Care ◽

10.12968/jowc.2020.29.1.44 ◽

2020 ◽

Vol 29 (1) ◽

pp. 44-50 ◽

Cited By ~ 1

Author(s):

Deniz Çevirme ◽

Ömer Faruk Savluk ◽

Eylül Kafalı Başaran ◽

Rezzan Aksoy ◽

Ahmet Elibol ◽

...

Keyword(s):

Wound Healing ◽

Rat Model ◽

Healing Process ◽

Female Rats ◽

Wound Healing Process ◽

Sprague Dawley ◽

Score Distribution ◽

Significant Difference

Objective: This study aims to compare the efficacy of enoxaparin, rivoraxaban and dabigatran on wound healing using a rat model. Method: Sprague-Dawley female rats (n=56), 10–12 weeks old, weight 245±30g, were used in this study. The rats were divided into four equally-sized groups. A type 1 (secondary wound healing) and type 2 (primary wound healing) wound was opened surgically on each rat in each group. Anticoagulent drugs enoxaparin, rivoraxaban and dabigatran and physiological saline solution were administered to Groups 1, 2, 3 and 4, respectively. After wound healing was scored tissue samples were taken from euthanised rats at days five and 10 and examined histologically. Since time was used as a classification (days five and 10), a time effect was included. Results: There was no statistically significant difference in total score distribution in rats between type 1 secondary wounds for days five and 10 (p>0.05). There was no statistically significant difference in the overall score distribution in rats between type 2 primary wounds for days five and 10 (p>0.05). Conclusion: In addition to the use of low molecular weight heparin with well-known anticoagulation activity, the new generation oral medications are used efficiently in thromboembolic diseases. However, there was no evidence observed in this study that these drugs could be either beneficial or harmful to wound healing.

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N-Acetylcysteine Added to Local Anesthesia Reduces Scar Area and Width in Early Wound Healing—An Animal Model Study

International Journal of Molecular Sciences ◽

10.3390/ijms22147549 ◽

2021 ◽

Vol 22 (14) ◽

pp. 7549

Author(s):

Wiktor Paskal ◽

Adriana M. Paskal ◽

Piotr Pietruski ◽

Albert Stachura ◽

Kacper Pełka ◽

...

Keyword(s):

Wound Healing ◽

Early Stage ◽

Healing Process ◽

Wound Healing Process ◽

Sprague Dawley ◽

Time Points ◽

Model Study ◽

Sprague Dawley Rats ◽

Animal Model Study ◽

Anesthetic Solution

The aim of the study was to evaluate if a pre-incisional N-acetylcysteine (NAC) treatment altered the process of wound healing in a rat model. The dorsal skin of 24 Sprague-Dawley rats was incised in six locations. Before the incisions were made, skin was injected either with lidocaine and epinephrine (one side) or with these agents supplemented with 0.015%, 0.03%, or 0.045% NAC (contralaterally). Photographic documentation of the wound healing process was made at 11 time points. Rats were sacrificed 3, 7, 14, or 60 days after incision to excise scars for histological analysis. They included: Abramov scale scoring, histomorphometry analysis, and collagen fiber arrangement assessment. Skin pretreated with 0.03% NAC produced the shortest scars at all analyzed time points, though this result was statistically insignificant. At this NAC concentration the scars had smaller areas on the third day and were narrower on the day 4 compared with all the other groups (p < 0.05). On day 7, at the same concentration of NAC, the scars had a higher superficial concentration index (p = 0.03) and larger dermal proliferation area (p = 0.04). NAC addition to pre-incisional anesthetic solution decreased wound size and width at an early stage of scar formation at all concentrations; however, with optimal results at 0.03% concentration.

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Efektivitas getah batang betadine (Jatropha multifida L.) terhadap penyembuhan luka pasca pencabutan gigi pada tikus Sprague-DawleyEffectiveness of betadine (Jatropha multifida L.) stem sap on the wound healing after tooth extraction in Sprague-Dawley rats

Jurnal Kedokteran Gigi Universitas Padjadjaran ◽

10.24198/jkg.v33i2.32563 ◽

2021 ◽

Vol 33 (2) ◽

pp. 145

Author(s):

Hendry Rusdy ◽

Astri Suryani Pasaribu Saruksuk ◽

Rahmi Syaflida Dalimunte ◽

Gostry Aldica Dohude

Keyword(s):

Wound Healing ◽

Tranexamic Acid ◽

Tooth Extraction ◽

Healing Process ◽

Control Group ◽

Wound Healing Process ◽

Sprague Dawley ◽

Sprague Dawley Rats ◽

Jatropha Multifida ◽

Plant Sap

Pendahuluan: Pencabutan gigi merupakan prosedur yang sering dilakukan di kedokteran gigi. Setelah pencabutan gigi akan dihasilkan suatu perlukaan. Proses penyembuhan luka dapat dipercepat pada kondisi tertentu. Salah satu bahan alami yang dapat membantu proses penyembuhan luka adalah getah tanaman betadine (Jatropha multifida L.). Penelitian bertujuan untuk menganalisis efektivitas getah tanaman betadine terhadap penyembuhan luka dan terhadap tanda-tanda infeksi pasca pencabutan gigi Metode: Desain penelitian studi eksperimental laboratorium dengan rancangan penelitian post-test only control group design menggunakan 30 ekor tikus Sprague-Dawley. Teknik pengambilan sampel yaitu convenience sampling. Sampel dibagi menjadi 2 kelompok yaitu kelompok perlakuan dan kelompok kontrol. Kelompok perlakuan diberikan getah tanaman betadine dan kelompok kontrol diberikan asam traneksamat secara oral menggunakan sonde lambung. Tunggu selama 4 jam setelah pemberian getah tanaman betadine dan asam traneksamat. Anestesi pada tikus menggunakan ketamin 50 mg/kg berat badan secara intramuskular kemudian dilakukan pencabutan pada gigi tikus. Pengamatan dilakukan dengan melihat kriteria klinis pada hari 1,3,7 dan diperhatikan sampai luka sembuh serta lihat tanda-tanda infeksi. Analisis data dilakukan dengan uji normalitasShapiro Wilik. Hasil penelitian menunjukkan bahwa data berdistribusi tidak normal. Analisis data dilanjutkan menggunakan uji statistik mann whitney. Hasil: Terdapat perbedaan signifikan penyembuhan luka soket pasca pencabutan gigi setelah diberikan getah betadine dan asam traneksamat dengan nilai p=0,037 (p<0,005). Simpulan: Pemberian getah tanaman betadine terbukti lebih efektif terhadap proses penyembuhan luka soket pasca pencabutan gigi dibandingkan dengan pemberian asam traneksamat. Kata kunci: tikus Sprague-Dawley; penyembuhan luka; pencabutan gigi; getah batang betadine ABSTRACTIntroduction: Tooth extraction is a procedure often performed in dentistry. Tooth extraction will always cause injuries. However, the wound healing process can be accelerated under certain conditions. One of the natural ingredients that can accelerate the wound healing process is betadine (Jatropha multifida L.) plant sap. The study was aimed to analyzed the effect of betadine plant sap on wound healing and signs of infection after tooth extraction. Methods: Experimental laboratory study design with post-test only control group design was conducted towards 30 Sprague-Dawley rats. The sampling technique was convenience sampling. The sample was divided into two groups, the treatment group and the control group. The treatment group was administered with betadine plant sap, and the control group was administered with tranexamic acid orally using a gastric probe, then waited 4 hours after. The anaesthesia was then performed using 50 mg/kg body weight of ketamine intramuscularly. The extraction was performed after. Observations was conducted at the clinical criteria on days 1, 3, and 7 and continue to be monitored until the wound heals. Then, the signs of infection were observed. Data analysis was carried out using the Shapiro Wilk normality test. The results showed that the data was not normally distributed. Thus, data analysis was continued using the Mann Whitney statistical test. Results: The results showed a significant difference in the healing of socket wounds after tooth extraction after being administered with betadine sap and tranexamic acid with a value of p=0.037 (p<0.005). Conclusions: Administration of betadine plant sap is proven to be more effective in accelerating the healing process of socket wounds after tooth extraction than tranexamic acid. Keywords: Sprague-Dawley rats; wound healing; pencabutan gigi; getah batang betadine

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Effect of Amniotic Fluid Stem Cells and Amniotic Fluid Cells on the Wound Healing Process in a White Rat Model

Archives of Plastic Surgery ◽

10.5999/aps.2013.40.5.496 ◽

2013 ◽

Vol 40 (5) ◽

pp. 496 ◽

Cited By ~ 22

Author(s):

Jung Dug Yang ◽

Dong Sik Choi ◽

Young Kyoo Cho ◽

Taek Kyun Kim ◽

Jeong Woo Lee ◽

...

Keyword(s):

Stem Cells ◽

Wound Healing ◽

Amniotic Fluid ◽

Rat Model ◽

Healing Process ◽

Wound Healing Process ◽

Amniotic Fluid Stem Cells ◽

Amniotic Fluid Cells

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Cecropia peltata L(Cecropiaceae) Has Wound-Healing Potential: A Preclinical Study in a Sprague Dawley Rat Model

The International Journal of Lower Extremity Wounds ◽

10.1177/1534734606286472 ◽

2006 ◽

Vol 5 (1) ◽

pp. 20-26 ◽

Cited By ~ 21

Author(s):

B. Shivananda Nayak

Keyword(s):

Wound Healing ◽

Rat Model ◽

Preclinical Study ◽

Sprague Dawley ◽

Sprague Dawley Rat

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Platelet-Rich Plasma (PRP) Promotes Fetal Mesenchymal Stem/Stromal Cell Migration and Wound Healing Process

Stem Cell Reviews and Reports ◽

10.1007/s12015-013-9494-8 ◽

2014 ◽

Vol 10 (3) ◽

pp. 417-428 ◽

Cited By ~ 51

Author(s):

Maria G. Roubelakis ◽

Ourania Trohatou ◽

Apostolos Roubelakis ◽

Evgenia Mili ◽

Ioannis Kalaitzopoulos ◽

...

Keyword(s):

Wound Healing ◽

Cell Migration ◽

Stromal Cell ◽

Platelet Rich Plasma ◽

Healing Process ◽

Wound Healing Process

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Platelet-Rich Plasma-Derived Exosomal USP15 Promotes Cutaneous Wound Healing via Deubiquitinating EIF4A1

Oxidative Medicine and Cellular Longevity ◽

10.1155/2021/9674809 ◽

2021 ◽

Vol 2021 ◽

pp. 1-14

Author(s):

Yan Xu ◽

Ze Lin ◽

Lei He ◽

Yanzhen Qu ◽

Liu Ouyang ◽

...

Keyword(s):

Wound Healing ◽

Wound Repair ◽

Platelet Rich Plasma ◽

Healing Process ◽

Cell Counting ◽

Wound Healing Process ◽

Hacat Cells ◽

Epithelial Regeneration

Epithelial regeneration is an essential wound healing process, and recent work suggests that different types of exosomes (Exos) can improve wound repair outcomes by promoting such epithelial regeneration. Platelet-rich plasma (PRP) is known to facilitate enhanced wound healing, yet the mechanisms underlying its activity are poorly understood. To explore these mechanisms, we first isolated PRP-derived Exos (PRP-Exos). Using immortalized keratinocytes (HaCaT cells) treated with PBS, PRP, or PRP-Exos, we conducted a series of in vitro Cell Counting Kit-8 (CCK-8), EdU, scratch wound, and transwell assays. We then established a wound defect model in vivo in mice and assessed differences in the mRNA expression within these wounds to better understand the basis for PRP-mediated wound healing. The functions of PRP-Exos and USP15 in the context of wound healing were then confirmed through additional in vitro and in vivo experiments. We found that PRP-Exos effectively promoted the in vitro proliferation, migration, and wound healing activity of HaCaT cells. USP15 was further identified as a key mediator through which these PRP-Exos were able to promote tissue repair both in vitro and in vivo. At a mechanistic level, USP15 enhanced the functional properties of HaCaT cells by promoting EIF4A1 deubiquitination. Thus, PRP-Exos and USP15 represent promising tools that can promote wound healing via enhancing epithelial regeneration.

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A Novel Effective Formulation of Bioactive Compounds for Wound Healing: Preparation, In Vivo Characterization, and Comparison of Various Postbiotics Cold Creams in a Rat Model

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2021/8577116 ◽

2021 ◽

Vol 2021 ◽

pp. 1-13

Author(s):

Nasim Golkar ◽

Yousef Ashoori ◽

Reza Heidari ◽

Navid Omidifar ◽

Seyedeh Narjes Abootalebi ◽

...

Keyword(s):

Wound Healing ◽

Bacillus Subtilis ◽

Lactobacillus Reuteri ◽

Healing Process ◽

Wound Healing Process ◽

Sprague Dawley ◽

Bioactive Substances ◽

Cold Cream ◽

Healing Property

The wound is a break in the integrity of the skin produced by injury, illness, or operation. Wound healing is an essential dynamic biological/physiological process that occurs in response to tissue damage. The huge health, economic, and social effects of wounds on patients and societies necessitate the research to find novel potential therapeutic agents in order to promote wound healing. Postbiotics, the newest member of the biotics family, are valuable functional bioactive substances produced by probiotics through their metabolic activity, which have several beneficial properties, including immunomodulatory, anti-inflammatory, antimicrobial, and angiogenesis characteristics, resulting in acceleration of wound healing. In the current study, three topical cold cream formulations containing postbiotics obtained from Lactobacillus fermentum, Lactobacillus reuteri, or Bacillus subtilis sp. natto probiotic strains were prepared. The effectiveness and wound healing activity of the developed postbiotics cold cream formulations were investigated compared to cold cream without postbiotics and no treatment via wound closure investigation, hydroxyproline content assay, and histological assessment in 25 Sprague Dawley rats divided into five groups. Interestingly, analysis of the results revealed that all three formulations containing postbiotics significantly accelerated the wound healing process. However, in general, the Bacillus subtilis natto cold cream manifested a better wound healing property. The pleasing wound healing characteristics of the topical postbiotics cold creams through the in vivo experiment suggest that formulations containing postbiotics can be considered as a promising nominee for wound healing approaches.

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Stromal vascular fraction promotes migration of fibroblasts and angiogenesis through regulation of extracellular matrix in the skin wound healing process

Stem Cell Research & Therapy ◽

10.1186/s13287-019-1415-6 ◽

2019 ◽

Vol 10 (1) ◽

Cited By ~ 8

Author(s):

Hongsen Bi ◽

Hui Li ◽

Chen Zhang ◽

Yiqing Mao ◽

Fangfei Nie ◽

...

Keyword(s):

Wound Healing ◽

Endothelial Cells ◽

Molecular Mechanisms ◽

Umbilical Vein ◽

Healing Process ◽

Stromal Vascular Fraction ◽

Wound Healing Process ◽

Matrix Remodeling ◽

Skin Defect ◽

The Impact

Abstract Background A refractory wound is a typical complication of diabetes and is a common outcome after surgery. Current approaches have difficulty in improving wound healing. Recently, non-expanded stromal vascular fraction (SVF), which is derived from mature fat, has opened up new directions for the treatment of refractory wound healing. The aim of the current study is to systematically investigate the impact of SVF on wound healing, including the rate and characteristics of wound healing, ability of fibroblasts to migrate, and blood transport reconstruction, with a special emphasis on their precise molecular mechanisms. Methods SVF was isolated by digestion, followed by filtration and centrifugation, and then validated by immunocytochemistry, a MTS proliferation assay and multilineage potential analysis. A wound model was generated by creating 6-mm-diameter wounds, which include a full skin defect, on the backs of streptozocin-induced hyperglycemic mice. SVF or human adipose-derived stem cell (hADSC) suspensions were subcutaneously injected, and the wounds were characterized over a 9-day period by photography and measurements. A scratch test was used to determine whether changes in the migratory ability of fibroblasts occurred after co-culture with hADSCs. Angiogenesis was observed with human umbilical vein endothelial cells. mRNA from fibroblasts, endotheliocyte, and skin tissue were sequenced by high-throughput RNAseq, and differentially expressed genes, and pathways, potentially regulated by SVF or hADSCs were bioinformatically analyzed. Results Our data show that hADSCs have multiple characteristics of MSC. SVF and hADSCs significantly improved wound healing in hyperglycemic mice. hADSCs improve the migratory ability of fibroblasts and capillary structure formation in HUVECs. SVF promotes wound healing by focusing on angiogenesis and matrix remodeling. Conclusions Both SVF and hADSCs improve the function of fibroblast and endothelial cells, regulate gene expression, and promote skin healing. Various mechanisms likely are involved, including migration of fibroblasts, tubulogenesis of endothelial cells through regulation of cell adhesion, and cytokine pathways.

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