Combination Of Platelet-rich Plasma Research Articles

Autologous platelet-rich plasma ‘fluid’ versus ‘gel’ form in combination with fractional CO2 laser in the treatment of atrophic acne scars: a split-face randomized clinical trial

Background The treatment of atrophic acne scars represents a therapeutic challenge. Recently, plasma gel has been introduced among treatment modalities. Objective To compare the efficacy of platelet-rich-plasma ‘fluid’ versus ‘gel’ form combined with fractional CO2 laser in the treatment of atrophic acne scars. Methods Twenty-seven patients with atrophic acne scars were included. Treatment with fractional CO2 laser plus plasma fluid/gel was randomly assigned to the right/left sides of the face. Clinical and Optical Coherence Tomography (OCT) assessments were scheduled at baseline, one month, and three months after the last session. Results There was a significant improvement in clinical assessment scores at third-month follow-up on the plasma gel- and plasma fluid-treated sides compared to those at the first-month follow-up (p < .001). Scar depth decreased significantly at third-month follow-up when compared to baseline on both plasma gel- and plasma fluid-treated sides (p < .001). The numerical pain score was significantly lower on the plasma fluid-treated side compared to the plasma gel-treated side (p = .004). Conclusion The use of platelet-rich plasma in combination with fractional CO2 laser, both in fluid and gel form, produced significant results in the treatment of atrophic acne scars. Patients reported an immediate more noticeable effect with plasma gel. However, the fluid injection was less painful.

Effect of Platelet-Rich Plasma on Autologous Chondrocyte Implantation for Chondral Defects: Results Using an In Vivo Rabbit Model.

Background:Articular cartilage repair remains challenging despite the availability of techniques, including autologous chondrocyte implantation (ACI) for repairing large cartilage defects. Platelet-rich plasma (PRP) therapy, a novel therapy focused on chondrocyte regeneration, needs to be investigated regarding its potential to improve the outcomes of ACI.Purpose:To examine the effect of PRP therapy on the outcomes of cartilage repair using the ACI procedure in a rabbit model of knee joint cartilage damage.Study Design:Controlled laboratory study.Methods:A total of 30 knees in 15 Japanese White rabbits (joint cartilage damage model) were divided into nontreatment (n = 7), PRP (n = 8), ACI (n = 7), and combined ACI and PRP (n = 8) groups. At 4 weeks and 12 weeks postoperatively, histological and visual examination of the surgical site was performed, and the regenerated cartilage and calcified bone areas were measured by imaging the specimens.Results:Pretransplantation evaluation in the cultured cartilage showed the histological properties of hyaline cartilage. At 4 weeks postoperatively, the regenerated cartilage area at the surgical site showed a larger safranin O–positive area in the ACI group (2.73 ± 4.46 mm2) than in the combined ACI and PRP group (1.71 ± 2.04 mm2). Calcified bone formation in the ACI group was relatively lower than that in the other groups. Cartilage repair failure occurred in all groups at 12 weeks postoperatively.Conclusion:The authors found no positive effects of PRP on the outcomes of ACI in a rabbit model. There was a smaller safranin O–positive region with the addition of PRP to ACI compared with ACI alone. In the subchondral bone, bone formation might have been promoted by PRP.Clinical Relevance:Administering PRP at the time of ACI may not have a positive effect and may have deleterious effects on cartilage engraftment and regeneration.

The effect of stromal vascular fraction and Platelet-Rich Plasma combination on basic Fibroblast Growth Factor serum level during anal trauma healing in a Wistar rat model

IntroductionStromal Vascular Fraction (SVF) and Platelet-Rich Plasma (PRP) application play important roles in the healing process by increasing basic Fibroblast Growth Factor (bFGF) secretion. This research assesses the effect of combined SVF and PRP local injection on bFGF levels, using an anal trauma model in Wistar rats. MethodTwenty-eight adult Wistar rats were divided into three groups. Groups A and B underwent modified surgical anal trauma and repair; Group A was treated with the SVF and PRP combination local injection, while Group B was treated with only normal saline. Subsequently, we examined bFGF levels in Groups A and B on days 1, 7, and 14. Group C consisted of healthy controls sacrificed on day 0 to obtain baseline data on bFGF levels. ResultsThe bFGF levels were higher in Group A than in Group B on every experimental day. The Repeated Measures test shows a significant increase in bFGF levels on day 1 (p = 0.000), day 7 (p = 0.000), and day 14 (p = 0.000). This test also indicates that the local injection combination of SVF and PRP increased bFGF levels by 96.2% compared to the placebo group. ConclusionThe combination of SVF and PRP can increase bFGF levels during anal trauma healing in the Wistar rat model. Basic FGF is an important factor throughout the anal trauma healing process.

The Effectiveness of Single Injection of Platelet-Rich Plasma for Knee Osteoarthritis Combined with Meniscus Injury: A Randomized Trial

Objectives : To explore the effectiveness of single injection of platelet-rich plasma with rehabilitation therapy for knee osteoarthritis combined with meniscus injury. Methods : Forty patients who met the inclusion criteria were randomly assigned to a rehabilitation group (REH group, 20 cases) receiving rehabilitation training, and a platelet-rich plasma group (PRP group, 20 cases) receiving an ultrasound-guided single injection of PRP in combination with rehabilitation training. Rehabilitation training in the two groups lasted for 2 weeks, and the patients were evaluated using the short-form McGill pain questionnaire (SF-MPQ), Western Ontario McMaster Universities index (WOMAC score), and infrared thermography (knee-joint mean temperature) before treatment, at 1 week, 1 month and 6 months after treatment. Results : Two patients were lost to follow-up in both the PRP group and the REH group. Significant reductions in pain scores, WOMAC scores and knee temperature were observed at 1 week and 1 month after treatment in both groups (p &lt; 0.05). Significant lower SF-MPQ scores were observed in the PRP group than in the REH group at 6 months followup (p &lt; 0.01). Similarly, the mean knee temperature was significantly lower in the PRP group than in the REH group at 6 months follow-up (p &lt; 0.01). No severe complications occurred in either group. Conclusions: Compared to rehabilitation therapy alone, single injection of platelet-rich plasma in combination with rehabilitation therapy has beneficial effect on pain, knee function and mean knee temperature in patients with KOA combined with meniscus injury. Single injection of platelet-rich plasma combined with rehabilitation therapy has a good short-term effectiveness.

Platelet-rich plasma combined with ozone prevents cartilage destruction and improves weight-bearing asymmetry in a surgery-induced osteoarthritis rabbit model.

Osteoarthritis (OA) is the most common degenerative disease in older adults and its treatment remains unsatisfactory. This study aimed to evaluate the effectiveness and explore the therapeutic mechanisms of the combination of platelet-rich plasma (PRP) and ozone (O3) for knee OA. Thirty male rabbits were randomly divided into five groups (Control group, OA group, PRP group, O3 group, and PRP + O3 group). Rabbit model of OA were induced by improved Hulth surgery. Gross articular observation, histopathological examination and cartilage scoring system were used to assess the articular cartilage destruction. The bone morphogenetic protein-2 (BMP-2) mRNA expression in joint fluid was determined by quantitative reverse transcription polymerase chain reaction (qRT-PCR). The expression of type II collagen, matrix metalloproteinase-1 (MMP-1) of cartilage was detected via Immunohistochemistry. Pain behavior was observed by percent ipsilateral weight-bearing (PIW) asymmetry. The content of platelet in PRP was increased by 6.2-times that in whole blood. Among induced OA groups (the OA, PRP, O3 and PRP + O3 group), PRP + O3 significantly inhibited the surgically induced increase in gross articular alterations, histopathological damage of cartilage and Mankin score when compared to the OA, PRP and O3 groups (P<0.05). Observed pain behavior by weight-bearing asymmetry, in the PRP + O3 group was reversed at 3 and 6 weeks after the administration of PRP + O3 (PIW asymmetry: -10.66%±1.172%). In addition, surgery-induced BMP-2 mRNA expression was significantly downregulated after the treatment of PRP, O3 and PRP + O3 (P<0.01). PRP + O3 group significantly increased the expression of type II collagen but decreased MMP-1 of cartilage in comparison to OA, PRP and O3 groups (P<0.05) by immunohistochemical analysis. PRP combined with O3 may prevent cartilage destruction and improve weight-bearing asymmetry by restoring homeostasis between anabolism and catabolism of extracellular matrix in progressive OA. Furthermore, a combination of PRP and O3 might achieve even better results than the two agents alone.

Immunomorphological features of women's skin with androgenetic alopecia in the treatment of plasma enriched with platelets in combination with topical minoxidil 2 % lotion

Introduction. The skin biopsies of 30 patients with androgenetic alopecia before and after treatment with platelet-rich plasma in combination with 2 % minoxidil were examined by immunohistochemistry. Goal. The study looked at immunohistochemical changes in the scalp biopsies of patients with stage I-II androgenetic alopecia according to the Ludwig scale and to identify possible changes after injection of platelet-rich plasma in combination with topical 2 % minoxidil lotion. Materials and methods. Skin biopsies of 30 patients with androgenetic alopecia were examined using an immunohistochemical study before and after treatment, which lasted 3 months and included 3 sessions of PRP (once per month) and topical application of minoxidil 2 % lotion twice a day. Results. It was found that androgenetic alorecia is accompanied by inflammatory perifollicular infiltration by T-lymphocytes CD3 +, CD4 + and CD8 +, macrophages (CD68 +); imbalance of germ polypeptides VEGF, TGF-β1, EGFR; accumulation of oxidative stress enzymes eNOS and iNOS; accumulation of pathological fraction of collagen IV. Injections of platelet-rich plasma in combination with topical administration of 2 % minoxidil as a treatment for androgenetic alopecia lead to normalization of immunohistochemical parameters of the skin, which indicates the possibility of using this combination for long-term therapeutic effect. Conclusions. This study complemented the understanding of the pathogenesis of AGA and serves as a basis for improving treatment regimens for this pathology. However, additional studies are needed to further study the pathomorphology of androgenetic alopecia and to standardize the technique of using platelet-rich plasma in patients with this disease.

Effect of a Decellularized Omentum Scaffold with Combination of Mesenchymal Stem Cells and Platelet-Rich Plasma on Healing of Critical-Sized Bone Defect: A Rat Model

The high costs and extensive time needed for the treatment of critical-sized bone defects are still major clinical concerns in orthopedic surgery; therefore, researchers continue to look for more cost and time-effective methods. This study aims to investigate the effects of a decellularized omentum scaffold with a combination of platelet-rich plasma (PRP) and mesenchymal stem cells on the healing of critical-sized bone defects. Wistar albino rats (n = 30) were investigated in five groups. Critical-sized bone defects were formed on bilateral radius shafts. No scaffold, decellularized omentum, omentum with PRP and omentum + mesenchymal stem cells was used in group 1 (control group), 2, 3 and 4, respectively. In addition, omentum with a combination of mesenchymal stem cells +PRP was used in group 5. After 6 weeks, both radiological and histological healing were evaluated comparatively among the groups. After the use of a decellularized omentum scaffold, vitality of new cells was maintained, and new bone formation occurred. When compared to the control group, radiological healing was significantly better (p = 0.047) in the omentum and omentum + PRP-treated groups. Furthermore, histological healing was better in the omentum and omentum + PRP-treated groups than the control group (p = 0.001). The use of a decellularized omentum scaffold is suitable in the healing of critical bone defects.

Comparison between 308‐nm excimer light alone versus 308‐nm excimer light and platelet‐rich plasma in the treatment for localized vitiligo

Monochromatic excimer light (MEL) is a safe and effective treatment for localized stable vitiligo. Previous reports of the combination of platelet-rich plasma (PRP) with narrowband ultraviolet B (NB-UVB) or excimer laser yielded conflicting results. This prospective, self-controlled, randomized, comparative study aimed to assess whether the addition of PRP to MEL therapy would be of an additive benefit in the treatment for localized stable vitiligo. Patients/Methods The current study included 36 patients with at least 2more or less symmetrical patches of localized stable vitiligo (72 patches). For each patient, each of the 2 vitiligo patches was randomly assigned to receive either MEL therapy (twice weekly) with bi-weekly intradermal PRP (group A) or MEL therapy alone (group B) for a maximum of 4months or till complete repigmentation. The degree of repigmentation was categorized as absent (0%), poor (1-25%), moderate (26-50%), good (51-75%), or excellent (>75%). Patients were asked about their level of satisfaction (not satisfied at all, partially satisfied, satisfied, or completely satisfied). Side effects were recorded, and follow-up for 3months was done. No statistically significant difference was observed between the 2groups regarding the degree of repigmentation, the patients' level of satisfaction, and the frequency of side effects (p=0.504, 0.490, and 0.912, respectively). At the end of the follow-up period, recurrence was observed in only 3 patients. The current study showed no statistically significant difference between using MEL alone or with intradermal PRP in the treatment for localized stable vitiligo.

Immunomorphological features of female patient’s skin with androgenetic alopecia in the treatment of platelet-rich plasma in combination with topical minoxidil 2 % lotion

The aim. The research was provided to obtain immunohistochemical changes in scalp biopsies of female patients with androgenetic alopecia (AGA) I-II stages according to the Ludwig scale and to detect possible changes after usage of platelet-rich plasma (PRP) injections in combination with topical minoxidil 2 % lotion.&#x0D; Materials and methods. Skin biopsies of 30 patients with AGA were examined by immunohistochemistry before and after treatment, which lasted for 3 months and included 3 PRP sessions (once per month) and topical application of minoxidil 2 % lotion twice daily.&#x0D; Results. It was found that AGA is accompanied by inflammatory perifollicular infiltration by T-lymphocytes CD3 +, CD4 + and CD8 +, macrophages (CD68 +); imbalance of growth polypeptides VEGF, TGF-β1, EGFR; accumulation of oxidative stress enzymes eNOS and iNOS; accumulation of pathological fraction of Collagen IV. The use of platelet-rich plasma in combination with topical 2 % minoxidil as AGA therapy leads to the normalization of immunohistochemical parameters of the skin, which indicates the possibility of its use for long-term therapeutic effect.&#x0D; Conclusions. This study supplemented the understanding of the pathogenesis of AGA and serves as the basis for improving treatment regimens for this pathology. But more research is required to further study the pathomorphology of androgenetic alopecia and to standardize the technique of using platelet-rich plasma in patients with this disease.

Non-cultured epidermal cells suspended in either platelet-rich plasma or ringer lactate for stable vitiligo: A prospective comparative study.

Noncultured epidermal cell suspension (NCES) transplantation is a commonly used surgical treatment for resistant stable vitiligo. The combination of platelet-rich plasma (PRP) with different therapeutic modalities for vitiligo yielded higher repigmentation response, probably due to platelet-derived growth factors. To evaluate the efficacy of PRP-suspended NCES compared to NCES suspended in Ringer's lactate (RL) solution in the treatment of stable vitiligo. A prospective comparative study was conducted on 40 patients with stable vitiligo. They were divided into two equal groups: group A (treated with RL-suspended NCES) and group B (treated with PRP-suspended NCES). All patients were followed-up for 6months for assessment of their therapeutic response regarding clinical outcomes and immunohistochemical expression of HMB-45 in lesional skin. Patients treated with PRP-suspended NCES showed a significantly higher repigmentation response compared to those treated with RL-suspended NCES at 1, 3, and 6months after treatment (p=0.015, 0.023, 0.029, respectively). The expression of HMB-45significantly increased in both groups after therapy, but without a significant difference between the two groups. The repigmentation response of NCES can be enhanced by suspending the melanocytes in autologous PRP.

Efficacy of intra-articular methylprednisolone along with platelet rich plasma vs. platelet rich plasma in early osteoarthritis: a retrospective study

Background: Increased prevalence as well as burden affecting osteoarthritis of knee joint has led to increase in concerns regarding safety of various pharmacological methods. Hence, there is an increase in demand for newer and effective strategies for treatment and manage­ment. Thus, a novel alternate for treatment is required that might repair damage to cartilage rather than simply reduce related symptoms. The aim of this study was to study the efficacy of intra-articular methylprednisolone along with platelet rich plasma versus platelet rich plasma in early knee osteoarthritis. Methods: This retrospective study was conducted on 60 patients diagnosed with initial stages of osteoarthritis of knee according to Kellgren-Lawrence classification. Patients age range was between 40 to 80 years who were divided into 2 groups; group I: It contained 30 subjects treated with intra-articular injections of Platelet Rich Plasma in combination with methylprednisolone and group II: comprised of 30 patients treated with intra-articular injection of Platelet rich Plasma alone. Clinical data pertaining to medical history, VAS and KOOS scores were collected. Statistical analysis was performed using the student’s t test. Results: Statistically significant improvements in VAS and KOOS score values were observed on assessment of scores at baseline, 1, 3 and 6 months intervals, respectively. Conclusions: It can be concluded from the study that a combination therapy of intra-articular injection of combination of PRP with methylprednisolone yields superior results when compared to use of PRP injections alone.

Synergistic impact of platelet rich plasma-heparin sulfate with hydroxyapatite/zirconia on the osteoblast differentiation potential of adipose-derived mesenchymal stem cells.

3D porous hydroxyapatite (HA) has been reinforced by zirconia (ZrO2) coating and impregnation with a combination of platelet rich plasma (PRP) as a source of growth factors (GFs) and Heparin sulfate (HS) to sustain the release of GFs. Adipose mesenchymal stem cells (ADMSCs) were characterized by flow cytometry for CD (cluster of differentiation) 44, CD105, CD106, CD34 and CD144, along with checking the multipotency by differentiation into the adipocytes and osteoblasts. Then, they were cultured on the scaffold treated with and without osteogenic media on days 7, 14 and 21. Electron micrograph and PKH staining show that the ADMSCs have a fusiform phenotype in the absence of osteogenic induction. Cell viability assay shows a higher number of the viable cells on the PRP-containing scaffolds than PRP-free scaffolds on day 7. Colorimetric evaluation, quantitative RT-PCR and immunocytochemistry demonstrate that PRP and HS significantly elevate the alkaline phosphatase enzyme activity and also accelerate the production of both early and mid-osteogenic markers, including collagen I and osteopontin expression with and without osteogenic conditions. The PRP-HS also accelerates the expression of the late osteogenic marker, osteocalcin, in both mRNA and protein level expression with a peak on day 21. In conclusion, supplementation of HA/ZrO2 with PRP/HS has a synergistic impact on the ADMSCs, even in the absence of chemical induction. It seems that HA/ZrO2/PRP/HS scaffold provides a higher osteoconductive microenvironment for stem cell differentiation to osteoblasts.

Combined Platelet Rich Plasma and Amniotic membrane in the treatment of Perforated Corneal Ulcers.

To report the outcomes of using synthetic amniotic membrane with platelet rich plasma for the primary management of corneal perforations. Ophthalmology department. Faculty of Medicine, Minia University, Minia, Egypt. A case series of 10 patients diagnosed with corneal perforation underwent emergency surgical procedure for repair of the perforation through the implantation of synthetic amniotic membrane with platelet-rich plasma clot under it and the application of platelet-rich plasma eye drops, with a follow up period of up to 4 weeks. All cases demonstrated formation of adequate intraocular pressure digitally, within the first 7 days, and all cases showed complete sealing of the corneal perforation within the 4 weeks follow up period, mild symptoms were reported only in the 1st postoperative week like foreign body sensation and lacrimation. 3 of the treated patients underwent penetrating keratoplasty after 6 months with satisfactory visual outcomes. The combination of amniotic membrane implant and platelet rich plasma in both the clot and eye drop forms is an effective and easy accessible method for the primary management of corneal perforations.

Comparative Study between the Efficacy of Platelet Rich Plasma with Methotrexate and Methotrexate Alone in Treatment of Chronic Plaque Psoriasis

Abstract Background Psoriasis affects up to 3% of the world's population or more than 125 million people. There is an urgent need for new treatment strategy, as up to 50% of patients are not satisfied with current therapies. We evaluated the efficiency of combined platelet rich plasma (PRP) and methotrexate (MTX) injection in management of psoriasis vulgaris and combared it with methotrexate injection only. Objectives The aim of this work is to compare between the clinical efficacy of platelet rich plasma with methotrexate and methotrexate alone in treatment of chronic plaque psoriasis. Patients and Methods Forty patients with chronic plaque psoriasis were divided into two groups. Twenty patients were assigned into combinational treatment group (PRP + MTX) and monotherapy group (MTX alone) consisted of another tweenty patients. All patients in combinational therapy group received autologous intralesional PRP at 0,4 and 8 weeks combined with methotrethate im injection once every week for 12 weeks, while patients in monotherapy group received only methotrexate im injection once every week for 12 weeks. Results There were statistically significant decreased DLQI score after 6 and 12 weeks of treatment in females compared to males only in group B, while no significant differences were found between males and females in group A patients, This could be attributed to the greater concern in females as psoriasis is considered as a cosmotic problem. Conclusion Combination treatment of PRP with MTX is more effective than MTX alone in treatment of psoriasis vulgaris.

Efficacy of intra-articular injection of combined platelet-rich plasma and hyaluronic acid in knee degenerative joint disease (182)

Objectives:Osteoarthritis (OA) of the knee is a debilitating disease whose prevalence has increased across the world with aging population. Platelet-Rich Plasma (PRP) and Hyaluronic Acid (HA) injections appear to be two of the main strategies for conservative treatment of early knee OA. The effectiveness of both treatments, however, is still under debate because contrasting results have been described in the current literature. Some pre-clinical studies evaluated the association of PRP and HA with encouraging results, highlighting the possibility of a synergistic effect between the two compounds and suggesting a possible use through combined intra-articular injections. The aim of this prospective randomized controlled double-blind clinical trial is to evaluate the efficacy of intra-articular injections of PRP and HA for the treatment of early stages of knee degenerative joint disease in improving joint function and reducing pain, compared to the intra-articular injections of PRP and HA alone.Methods:Patients with knee early OA were prospectively enrolled and then double-blinded randomly divided into three groups of fifty-eight subjects each: HA alone, PRP alone and PRP+HA group. Patients received three intra-articular injections with two-week interval period among each dose. Patients clinical outcome was evaluated through five questionnaires [The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Tegner Activity, Visual Analogue Scale (VAS), Knee injury and Osteoarthritis Outcome Score (KOOS), and International Knee Documentation Committee (IKDC) Subjective Knee Form] before the treatment (T0) and after 3, 6 and 12 months from the first injection. Patients’use of paracetamol and supplementary analgesia for knee pain during the study was collected.Results:One hundred and seventy-four patients were enrolled in this study (age, 30-80 years; 108 females and 66 males) and 162 completed the 12-month follow-up. All patients showed significant clinical improvement after treatment. The analysis of covariance (ANCOVA) did not show statistically significant differences among the three groups for all the variables analysed at 6 and 12 months of follow-up (p>0.05).No significant differences were found in terms of adverse events (p=0.49) among the three groups of patients (p=0.92).The demand for paracetamol and supplementary analgesics was generally low and there were no significant differences among the groups (p=0.23 and p=0.56, respectively).Conclusions:Injections treatments for early knee OA are an important conservative therapeutic strategy. To date, the current literature presents many contrasting studies about the effectiveness of PRP or HA, but only a few consider the combined use of PRP and HA as attractive therapeutic option. Our study has not shown any significant difference in clinical and functional outcomes among the three experimental groups, suggesting a substantial equivalence of these three treatments. Thus, cost-effectiveness is in favor of HA injections in the conservative treatment of early OA.

Platelet-rich Plasma and Its Application in Clinical Trial

Platelet-rich Plasma and Its Application in Clinical Trial

Pilot Study on the Use of the "Monocyte-Rich" Platelet-Rich Plasma in Combination with 1927 nm Fractional and 308 nm Excimer Lasers for the Treatment of Vitiligo.

Background and objectives: Vitiligo is an acquired chronic and idiopathic skin disorder, characterized by selective loss of melanocytes and resulting in a cutaneous depigmentation. Treatment for vitiligo remains a challenge for dermatologists; thus, it is frustrating both for physicians and patients. The objective of this study was to evaluate a combination treatment characterized by the use of a leukocyte-rich platelet-rich plasma, which is particularly rich in monocytes (defined here as monocyte-rich PRP), in combination with a 1927 nm fraxel laser and a 308 nm excimer laser. Materials and Methods: Treatment with monocyte-rich PRP combined with 1927 nm fraxel laser and 308 nm excimer laser was performed in nine sessions in 80 days and the median follow-up of the patients was 10 months. A total of 27 Caucasian patients were included in the present study. The median age of patients was 41 years, ranging between 20 and 69 years. Results: A re-pigmentation occurred in 16 cases (59%) with a reduction of the Vitiligo Extent Score (VES) and absence of re-pigmentation in untreated areas. Performing a rank correlation between VES and re-pigmentation in the treated areas, we found that there was a significant correlation (p < 0.0001). The presence of progressive vitiligo (p = 0.1) and the anatomic areas (p = 0.1) did not influence the treatment. Untreated areas did not show any improvement of the depigmented lesions, except in one case (p < 0.0001). Conclusions: in this report, we show for the first time how PRP rich in monocytes, in combination with laser therapies, gives a long therapeutic response, which persists even after 10 months of follow-up.

Matriderm and platelet-rich plasma combination in the treatment of recurrent carpal tunnel syndrome: a new approach

Matriderm and platelet-rich plasma combination in the treatment of recurrent carpal tunnel syndrome: a new approach

Adipose mesenchymal stem cells combined with platelet-rich plasma accelerate diabetic wound healing by modulating the Notch pathway

BackgroundDiabetic foot ulceration is a serious chronic complication of diabetes mellitus characterized by high disability, mortality, and morbidity. Platelet-rich plasma (PRP) has been widely used for diabetic wound healing due to its high content of growth factors. However, its application is limited due to the rapid degradation of growth factors. The present study aimed to evaluate the efficacy of combined adipose-derived mesenchymal stem cells (ADSCs) and PRP therapy in promoting diabetic wound healing in relation to the Notch signaling pathway.MethodsAlbino rats were allocated into 6 groups [control (unwounded), sham (wounded but non-diabetic), diabetic, PRP-treated, ADSC-treated, and PRP+ADSCs-treated groups]. The effect of individual and combined therapy was evaluated by assessing wound closure rate, epidermal thickness, dermal collagen, and angiogenesis. Moreover, gene and protein expression of key elements of the Notch signaling pathway (Notch1, Delta-like canonical Notch ligand 4 (DLL4), Hairy Enhancer of Split-1 (Hes1), Hey1, Jagged-1), gene expression of angiogenic marker (vascular endothelial growth factor and stromal cell-derived factor 1) and epidermal stem cells (EPSCs) related gene (ß1 Integrin) were assessed.ResultsOur data showed better wound healing of PRP+ADSCs compared to their individual use after 7 and 14 days as the combined therapy caused reepithelialization and granulation tissue formation with a marked increase in area percentage of collagen, epidermal thickness, and angiogenesis. Moreover, Notch signaling was significantly downregulated, and EPSC proliferation and recruitment were enhanced compared to other treated groups and diabetic groups.ConclusionsThese data demonstrated that PRP and ADSCs combined therapy significantly accelerated healing of diabetic wounds induced experimentally in rats via modulating the Notch pathway, promoting angiogenesis and EPSC proliferation.

Комплексное лечение увеита с макулярным отеком, ассоциированного с системными заболеваниями, с использованием аутологичной плазмы, обогащенной тромбоцитами

In patients with uveitis associated with systemic diseases, a common cause of low vision is macular edema, which develops at any localization of the inflammatory process in 38–84% of cases. Autologous platelet-rich plasma is widely used in various branches of medicine, however, in the treatment of uveitis accompanied by macular edema, the clinical efficacy of its use has not been sufficiently studied. Purpose. To conduct a clinical and laboratory assessment of the effectiveness of complex treatment of uveitis with macular edema associated with systemic diseases using autologous platelet-rich plasma. Material and methods. The study included 120 people (120 eyes) from 18 to 50 years old with uveitis and macular edema associated with systemic diseases: 51 men, 69 women. Patients were divided into 2 groups: the main group consisted of patients who received anti-inflammatory treatment and administration of autologous plasma platelet-rich; comparison group – patients who received anti-inflammatory treatment. All patients underwent a comprehensive ophthalmological examination. Results. It has been established that the administration of autologous platelet-rich plasma against the background of anti-inflammatory treatment in patients with uveitis associated with systemic diseases accompanied by macular edema improves the maximally corrected visual acuity, a statistically significant decrease in the thickness of the retina in the fovea and an increase in the light sensitivity of the retina, relative to the data obtained in the comparison group. Conclusion. The use of autologous platelet-rich plasma in combination with anti-inflammatory treatment leads to a decrease in the incidence of recurrence of uveitis associated with systemic diseases, helps to reduce macular edema and improve functional parameters. Key words: uveitis, macular edema, anti-inflammatory treatment, autologous platelet-rich plasma.