Autologous Preparation Research Articles

The Therapeutic Use of Dental Mesenchymal Stem Cells in Human Clinical Trials.

Mesenchymal stem cells (MSCs), characterized by their undifferentiated and multipotent nature, can be derived from various sources, including bone marrow, adipose, and dental tissues. Among these, dental MSCs (DSCs) exhibit universal MSC characteristics and are attracting considerable attention for regenerating oral and craniofacial tissues. This review provides a contemporary overview of recently published clinical studies using DSCs for various orodental and maxillofacial regenerative applications, including bone, periodontal, and endodontic regeneration. It also explores the utilization of DSCs in treating systemic conditions, exemplified by their application in managing conditions such as COVID-19 and osteoarthritis. The available evidence underscores the potential of DSCs and their secretome as efficacious tools in regenerative medicine for both dental and nondental clinical applications, supporting the continued promise of stem cell-based therapies. It is nevertheless evident that there are a number of important challenges that restrict the widespread utilization of DSCs, namely, difficulty in standardizing autologous preparations, insufficient cell surface marker characterization, high production costs, and regulatory compliance requirements. Further, the unique requirements of dental applications, especially complex structures such as the periodontium, where temporospatial control over the healing process is required, necessitate the combination of stem cells with appropriate scaffolds according to the principles of tissue engineering. There is currently insufficient evidence to support the clinical translation of DSCs into clinical practice, and phase 3 clinical trials with standardized protocols for cell sourcing, propagation, dosing, and delivery are required to move the field forward. In summary, this review provides a contemporary overview of the evolving landscape of stem cell therapy, offering insights into the latest developments and trends as well as the challenges that need to be addressed for the widespread application of DSC-based cell therapies.

Platelet-rich plasma in dermatology and aesthetic medicine

Introduction and purpose Aesthetic medicine is one of the youngest fields of medicine. Initially, it focused on improving the quality of life of patients by using various treatments aimed at stopping the aging process. Over time, this branch of medicine has developed dynamically, and nowadays the treatments focus not only on improving the appearance of the skin and its defects, but are also used to treat many dermatological problems. Platelet-rich plasma (PRP) is an autologous concentrate of platelets in a small volume of plasma. having numerous applications in many fields of medicine. The aim of this work is to present the method, focusing on its positive effects in the problems of aesthetic and regenerative medicine, as well as in some dermatological diseases. Material and methods The review was baised on the articles obtained from Pubmed and Google Scholar scientific databases from recent years using the keywords: aesthetic medicine, platelet-rich plasma, dermatology. Results The presence of numerous growth factors and other active ingredients makes the action of PRP comprehensive and based on several mechanisms. Studies show a positive effect, especially in skin rejuvenation and anti-aging prevention, hair reconstruction, wound healing and reconstruction of scars of various etiologies, as well as in pigmentation disorders. Moreover, combining PRP with other methods such as laser therapy or microneedling produces a synergistic effect, improving overall treatment results. Conclusions Platelet-rich plasma is an autologous preparation obtained after centrifugation of blood collected from the patient. The properties of PRP make it widely used in many clinical situations. is used both in aesthetic medicine and in dermatological problems. It should be emphasized that further multi-center studies are needed to standardize treatment protocols and adapt them to specific problems. Keywords: aesthetic medicine, platelet-rich plasma, dermatology.

Recent Achievements in the Development of Biomaterials Improved with Platelet Concentrates for Soft and Hard Tissue Engineering Applications.

Platelet concentrates such as platelet-rich plasma, platelet-rich fibrin or concentrated growth factors are cost-effective autologous preparations containing various growth factors, including platelet-derived growth factor, transforming growth factor β, insulin-like growth factor 1 and vascular endothelial growth factor. For this reason, they are often used in regenerative medicine to treat wounds, nerve damage as well as cartilage and bone defects. Unfortunately, after administration, these preparations release growth factors very quickly, which lose their activity rapidly. As a consequence, this results in the need to repeat the therapy, which is associated with additional pain and discomfort for the patient. Recent research shows that combining platelet concentrates with biomaterials overcomes this problem because growth factors are released in a more sustainable manner. Moreover, this concept fits into the latest trends in tissue engineering, which include biomaterials, bioactive factors and cells. Therefore, this review presents the latest literature reports on the properties of biomaterials enriched with platelet concentrates for applications in skin, nerve, cartilage and bone tissue engineering.

ИССЛЕДОВАНИЕ ВЛИЯНИЯ ПРОФИЛАКТИЧЕСКОГО ПРИЕМА АУТОПРОБИОТИКА НА ОСНОВЕ STREPTOCOCCUS SALIVARIUS НА СОСТОЯНИЕ МИКРОБИОТЫ ПОЛОСТИ РТА У УЧАСТНИКОВ ИЗОЛЯЦИОННОГО ЭКСПЕРИМЕНТА SIRIUS-2021

Effect of an autologous preparation based on Streptococcus salivarius (S. salivarius) on oral cavity microbiota was investigated in participants of 8-month isolation study SIRIUS-2021 with the purpose of developing programs of preventing immunomicrobiological disorders. We investigated microbiota qualitative and quantitative dynamics, microbiological changes before and after consumption of the S. salivarius preparation using a bacteriologic technique, MALDI-TOF mass spectrometry, and microbial markers mass-spectrometry. Concentrations of secretion immunoglobulin А (sIgA) and IL-8, IL-10 cytokines in oral liquid were determined with the immune-enzyme assay. It was found that the S. Salivarius-based autologous preparation had a favorable effect on the mouth microbiocenosis in all the participants in the study.

Thermographic profile of the face before treatment with autologous preparation – a preliminary report

The paper presents a thermographic image of the face of a 30-year-old patient before an autologous procedure using her own blood (CGF-Harmony) in the upper and middle parts of the face. The thermographic method is non-invasive, safe and non-contact. The possibility of using thermography in aesthetic medicine is important because it brings certain values, but one should be aware of the existence of certain limitations in thermography tests, resulting from many factors such as diet, use of various cosmetics, other environmental conditions and others.

Use of Platelet-Rich Plasma in the Management of Alopecia Areata

Introduction Classic treatment options for patients with alopecia areata (AA) include intralesional and topical steroids as well as oral immunotherapy. Although these options can be effective for some patients, topical therapies are often inconvenient, and there can be many side effects with oral medications. Platelet-rich plasma (PRP) is an autologous preparation of concentrated platelets that is an emerging therapy for various conditions such as chronic nonhealing wounds, muscle injuries, and, more recently, hair loss. Case Presentation A 71-year-old woman with diffuse hair loss diagnosed previously as AA presented to our clinic after nonresponse to topical steroids and adverse events with topical minoxidil use. At our clinic, the patient underwent three treatments with PRP injections. Total hair regrowth without relapse was noted 6 months after treatment cessation. Discussion/Conclusion Our case illustrates a situation in which PRP served as an effective, rapid, and safe treatment option in a patient with AA who was unresponsive to previous standard therapies and feared side effects of oral medications.

Recent clinical trials with stem cells to slow or reverse normal aging processes.

Aging is associated with a decline in the regenerative potential of stem cells. In recent years, several clinical trials have been launched in order to evaluate the efficacy of mesenchymal stem cell interventions to slow or reverse normal aging processes (aging conditions). Information concerning those clinical trials was extracted from national and international databases (United States, EU, China, Japan, and World Health Organization). Mesenchymal stem cell preparations were in development for two main aging conditions: physical frailty and facial skin aging. With regard to physical frailty, positive results have been obtained in phase II studies with intravenous Lomecel-B (an allogeneic bone marrow stem cell preparation), and a phase I/II study with an allogeneic preparation of umbilical cord-derived stem cells was recently completed. With regard to facial skin aging, positive results have been obtained with an autologous preparation of adipose-derived stem cells. A further sixteen clinical trials for physical frailty and facial skin aging are currently underway. Reducing physical frailty with intravenous mesenchymal stem cell administration can increase healthy life expectancy and decrease costs to the public health system. However, intravenous administration runs the risk of entrapment of the stem cells in the lungs (and could raise safety concerns). In addition to aesthetic purposes, clinical research on facial skin aging allows direct evaluation of tissue regeneration using sophisticated and precise methods. Therefore, research on both conditions is complementary, which facilitates a global vision.

Review of a series of clinical observations of the use of "Cell culture for substitution therapy"

Introduction. The necessity to develop new substitutional medical technologies is associated with a high demand for rehabilitative measures of traumatological, surgical, and dental patients and persons with burn disease. The existing clinical practice of using allogeneic and autogenous cells, previously used for these purposes, has not yet been standardized. The aim of the study was to summarize scientific literature data on the clinical effectiveness of cell-based medical biotechnologies for regenerative medicine. Materials and methods. The authors reviewed 29 published scientific sources on the results of clinical trials of the preparation "Cell culture for substitution therapy" in 12 medical institutions of the Ural and Siberian regions of the Russian Federation during the period from 1998 to 2012. Results and discussion. Developed and effectively tested on the basis of medical institutions of Sverdlovsk, Chelyabinsk, Tyumen, Kemerovo regions, the Republic of Sakha (Yakutia) and Khanty-Mansi Autonomous Okrug immunobiological preparation "Cell culture for replacement therapy" had high clinical effectiveness in pathological conditions associated with tissue damage in patients with burns, surgery, trauma and dental profile. The studies demonstrated the key activity of allogeneic fibroblasts in the lesion nidus while reducing the time of extracellular matrix formation during active tissue regeneration. The use of the drug prevented the development of generalized infectious-inflammatory complications, reduced the risk of secondary infections, reduced the period of hospitalization and rehabilitation of patients. Conclusion. Analysis of the literature data on the high efficiency of immunobiological agents for substitution therapy on the example of using the preparation on the basis of allogeneic human fibroblasts, based on modern medical standardization and ethical norms, sets the actual task of their replacement by xenogenic and autologous preparations, which will increase the efficiency and safety of the presented method of treatment, improve the quality, life expectancy and demographic indicators in Russia.

Pengaruh Pemberian Platelet-Rich Plasma Terhadap Derajat Keparahan Psoriasis Vulgaris

Psoriasis vulgaris is an autoimmune disease that is influenced by multifactor, namely environmental, genetic (HLA-Cw6), and immune system dysregulation (IL-17 or IL-22), resulting in increased proliferation of keratinosit in the epidermis. Histologically characterized by parakeratosis, hyperkeratosis, elongated rete ridge, Monro micro abscess, and Kogoj micro abscess. The clinical picture is red patches with thick scales, especially in the trauma area. Platelet Rich Plasma (PRP) is an autologous preparation of platelets that strengthens in plasma and is a powerful anti-inflammatory agent. The immunomodulatory and anti-inflammatory effects of PRP are believed to play a role in the treatment of chronic inflammation patients. One of the important mediators in the pathogenesis of psoriasis is nuclear factor kappa B (NF-κB) and PRP exerting an inhibitory effect on NF-κB. The aim of the study was to assess the effect of PRP on the severity and quality of life of psoriasis vulgaris patients. The design of this study is a paired numerical comparative analysis using two groups with two measurements. The research design was a randomized, undisguised clinical trial and a parallel design. The study lasted for 6 weeks. Sampling was done by total sampling involving 20 psoriasis Vulgaris patients, then divided into two groups: intervention group and control group. The test group received 2 PRP injections and topical combination therapy (salicylic acid 3% + Vaseline album cream), while the control group only received topical combination therapy. The results of this study found a decrease in PASI and DLQI scores in the intervention group compared to the control group (p<0.005). This study concludes that the administration of PRP can reduce the severity of psoriasis Vulgaris as well as improve the quality of life of psoriasis Vulgaris patients.

Effect of Autologous Platelet-Rich Plasma Drops in the Treatment of Ocular Surface Disease.

Platelet rich plasma (PRP) is an autologous preparation that concentrates platelets in a small volume of plasma. The purpose of this study was to determine if PRP eye drops improved the symptoms and signs of ocular surface disease. A retrospective case series was conducted of patients who were prescribed PRP eye drops. Subjects were excluded if they did not have follow-up, underwent intraocular surgery prior to follow-up, received nerve growth factor treatments, or did not have a baseline examination with photography. Symptoms were assessed using the Ocular Surface Disease Index (OSDI). Patients also underwent a slit lamp exam, ocular surface staining with fluorescein and lissamine green, and Schirmer testing. The charts of 47 patients treated with PRP drops for ocular surface disease were reviewed. Sixty-four eyes of 32 patients were included in the study who had photographs of lissamine green staining taken at baseline and at follow-up. Thirteen patients (28%) had ocular graft-versus-host disease, 16 patients (34%) had Sjögren's syndrome, and 4 patients (8.5%) had rheumatoid arthritis. There was a statistically significant decrease in OSDI score from baseline to follow-up (39.5 vs 30.8 points, p = 0.02). Among the 64 eyes included, 9 (14%) had an improvement in conjunctival lissamine green staining, while 6 (9%) had an increase in staining at follow-up. Among the 20 eyes with Schirmer testing, there was a borderline significant increase in score from baseline to follow-up (5.9 vs 9.7, p = 0.06). Among the 44 eyes that had corneal fluorescein staining (CFS) reported, 8 (18.2%) had decreased staining and 2 (4.5%) had increased staining at follow-up. Treatment with PRP drops was associated with a significant improvement in symptoms in patients with ocular surface disease. Future larger prospective studies are needed to further evaluate the efficacy of PRP drops for treating ocular surface disease.

Use of platelet-rich fibrin a backbone in facial plastic surgery and wound healing: A review of literature

Platelet aggregates has been used in surgery for many years. The primary goal of these ‘Autologous Preparation’ was to aggregate platelets and their growth factors and to convey it to a surgical site, to improve healing only. The latest research work shows that the PRF also can be used for Protection of Graft, neo-angiogenesis, vascularization locally and release of various growth factors apart from healing. Platelet rich fibrin (PRF) is considered as the new generation of platelet concentrate. “Choukroun’s PRF” or Leucocyte PRF (L-PRF) is the new development, which was first developed by Choukroun’s et al. in 2001 as an ‘Autologous biomaterial.’ A systematic literature search was performed to identify relevant articles that describes the use of PRF, through PubMed and Scopus databases. The focus of this article is to explore the role of PRF in esthetic facial surgery.

Innovative Cell and Platelet Rich Plasma Therapies for Diabetic Foot Ulcer Treatment: The Allogeneic Approach.

Cutaneous chronic wounds are a major global health burden in continuous growth, because of population aging and the higher incidence of chronic diseases, such as diabetes. Different treatments have been proposed: biological, surgical, and physical. However, most of these treatments are palliative and none of them can be considered fully satisfactory. During a spontaneous wound healing, endogenous regeneration mechanisms and resident cell activity are triggered by the released platelet content. Activated stem and progenitor cells are key factors for ulcer healing, and they can be either recruited to the wound site from the tissue itself (resident cells) or from elsewhere. Transplant of skin substitutes, and of stem cells derived from tissues such as bone marrow or adipose tissue, together with platelet-rich plasma (PRP) treatments have been proposed as therapeutic options, and they represent the today most promising tools to promote ulcer healing in diabetes. Although stem cells can directly participate to skin repair, they primarily contribute to the tissue remodeling by releasing biomolecules and microvesicles able to stimulate the endogenous regeneration mechanisms. Stem cells and PRP can be obtained from patients as autologous preparations. However, in the diabetic condition, poor cell number, reduced cell activity or impaired PRP efficacy may limit their use. Administration of allogeneic preparations from healthy and/or younger donors is regarded with increasing interest to overcome such limitation. This review summarizes the results obtained when these innovative treatments were adopted in preclinical animal models of diabetes and in diabetic patients, with a focus on allogeneic preparations.

Treatment of Androgenetic Alopecia Using PRP to Target Dysregulated Mechanisms and Pathways.

Androgenetic alopecia (“AGA”) is the most prevalent type of progressive hair loss, causing tremendous psychological and social stress in patients. However, AGA treatment remains limited in scope. The pathogenesis of androgenetic alopecia is not completely understood but is known to involve a hair follicle miniaturization process in which terminal hair is transformed into thinner, softer vellus-like hair. This process is related to the dysregulation of the Wnt/β-catenin signaling pathway, which causes premature termination of the anagen growth phase in hair follicles. Historically used for wound healing, platelet rich plasma (“PRP”) has recently been at the forefront of potential AGA treatment. PRP is an autologous preparation of plasma that contains a high number of platelets and their associated growth factors such as EGF, IGF-1, and VEGF. These factors are known to individually play important roles in regulating hair follicle growth. However, the clinical effectiveness of PRP is often difficult to characterize and summarize as there are wide variabilities in the PRP preparation and administration protocols with no consensus on which protocol provides the best results. This study follows the previous review from our group in 2018 by Cervantes et al. to analyze and discuss recent clinical trials using PRP for the treatment of AGA. In contrast to our previous publication, we include recent clinical trials that assessed PRP in combination or in direct comparison with standard of care procedures for AGA such as topical minoxidil and/or oral finasteride. Overall, this study aims to provide an in-depth analysis of PRP in the treatment of AGA based on the evaluation of 17 recent clinical trials published between 2018 and October 2021. By closely examining the methodologies of each clinical trial included in our study, we additionally aim to provide an overall consensus on how PRP can be best utilized for the treatment of AGA.

The mechanism of action of platelet-rich plasma – composition analysis and safety assessment

Abstract Aesthetic medicine is an intensively developing field, more and more focused on stimulating and regenerating the skin, rather than on emergency treatment. There are many methods used by doctors for biostimulating therapies, but the most popular procedure in recent years is the implantation of platelet-rich plasma (PRP) used to date successfully in ophthalmology, dermatology, surgery, dentistry and even in orthopedics. The procedure uses autologous material, and its essence is a repair action on damaged cells of the patient as well as the activation of healthy cells and their stimulation for more effective work. The aim of the paper is to present current knowledge about platelet-rich plasma therapy in anti-aging treatment, the effectiveness of therapy with its use, and the mechanism and safety of PRP. The composition of the autologous preparation and its use in aesthetic medicine were also analyzed. PRP is a procedure that uses the patient’s own cells, and growth factors are of key importance in the process of skin regeneration and biostimulation. The correctly performed procedure, including the appropriate collection and administration of a buffy coat to the patient and compliance with all the rules of sterility, results in positive effects of the therapy. Numerous studies prove the effectiveness and safety of the platelet-rich plasma treatment. Highly concentrated platelets in the deposited preparation stimulate the surrounding cells to angiogenesis, differentiation, proliferation and synthesis of components essential for remodeling of the treated area. The therapy is highly effective and safe to use.

EFFICACY OF PLATELET RICH PLASMA AS MONOTHERAPY IN TREATMENT OF ALOPECIA AREATA.

Context: Alopecia Areata is an inflammatory auto-immune disease mainly affecting the scalp and other hair bearing areas. Platelet rich plasma (PRP) is autologous preparation of plasma with concentrated platelets which containing various growth factors and cytokines that enhance the body's inherent capacity to repair and regenerate hair follicles. Aims And Objectives: To evaluate the efficacy of platelet rich plasma as monotherapy in alopecia areata. Materials And Methods : Total 20 patients , in that 10 male and 10 female with alopecia areata will be enrolled in this study. PRP will be injected in alopecia sites (hairless patches) every 30 days for a total 4 sessions. Follow up will be taken every month for 6 months and pre and post treatment response will be noted by using photographs .

Aesthetics in Geriatrics Using Plasma and Its Fractions in India

Introduction: Geriatric aesthetics is an evolving branch of cosmetology with extensive research conducted to minimize the invasiveness, number of visits and safety of the proposed modality. In developing country, the adding burden of cost hinders the practical application of standard aesthetic procedures used elsewhere. Platelet-rich plasma is an autologous preparation that is utilized in various fields of regenerative medicine.

Leucocyte Platelet-Rich Fibrin (L-PRF) in non-healing ulcers

Leucocyte Platelet-Rich Fibrin (L-PRF) in non-healing ulcers - IJOR- Print ISSN No: - 2581-8112 Online ISSN No:- 2581-9151 Article DOI No:- 10.18231/j.ijor.2020.016, IP International Journal of Orthopaedic Rheumatology-IP Int J Orthop Rheumatol

Characteristics of L-PRP preparations for treating Achilles tendon rupture within the PATH-2 study

Platelet-rich plasma (PRP) is an autologous preparation that has been claimed to improve healing and mechanobiological properties of tendons both in vitro and in vivo. In this sub-study from the PATH-2 (PRP in Achilles Tendon Healing-2) trial, we report the cellular and growth factor content and quality of the Leukocyte-rich PRP (L-PRP) (N = 103) prepared using a standardized commercial preparation method across 19 different UK centers. Baseline whole blood cell counts (red cells, leukocyte and platelets) demonstrated that the two groups were well-matched. L-PRP analysis gave a mean platelet count of 852.6 x 109/L (SD 438.96), a mean leukocyte cell count of 15.13 x 109/L (SD 10.28) and a mean red blood cell count of 0.91 x 1012/L (SD 1.49). The activation status of the L-PRP gave either low or high expression levels of the degranulation marker CD62p before and after ex-vivo platelet activation respectively. TGF-β, VEGF, PDGF, IGF and FGFb mean concentrations were 131.92 ng/ml, 0.98 ng/ml, 55.34 ng/ml, 78.2 ng/ml and 111.0 pg/ml respectively with expected correlations with both platelet and leukocyte counts. While PATH-2 results demonstrated that there was no evidence L-PRP is effective for improving clinical outcomes at 24 weeks after Achilles tendon rupture, our findings support that the majority of L-PRP properties were within the method specification and performance.

EFFICACY OF FRACTIONAL CO2 LASER WITH TOPICAL PLATELET RICH PLASMA IN TREATMENT OF ACNE SCARS

Background: Acne scars are most distressing sequelae of acne vulgaris having a major impact on psychosocial aspect and quality of life of an individual. In spite of various therapeutic modalities available treatment of acne scars is challenging. Resurfacing techniques such as Fractional Co2 Laser is a well-established treatment option for acne scar. Platelet-Rich Plasma (PRP), an autologous preparation of growth factors helps in wound healing and tissue regeneration.
 Aim: To study the efficacy of Fractional CO2 Laser with Topical Platelet-Rich Plasma in Acne scars.
 Materials and Methods: A total of 15 patients with atrophic facial acne scar, aged 18-40 years attending Outpatient Department of Dermatology, Venereology and Leprosy at tertiary care centre during January 2019 to December 2019 were included for this interventional study after written informed consent. The patients underwent six sessions of Fractional CO2 Laser with Topical application of Platelet-Rich Plasma at monthly intervals. Pre and post treatment comparative Goodman and Baron’s quantitative global scarring grading and patients self-assessment score were used for assessment.
 Results: At the end of study mild reduction in Goodman and Baron’s quantitative score for acne scar was noted in 13 patients (86.6%). Mean Goodman and Baron’s quantitative score att 4 weeks after sixth sitting was 13.13 ± 4.60. On patients self-assessment moderate resolution of acne scar was noted in 8 patients (53.3%).
 Conclusion: Fractional CO2 Laser with Topical Platelet-Rich Plasma application has mild to moderate improvement of acne scars and shorter down time of Fractional CO2 Laser.
 Keywords: Acne scar, Fractional Co2 Laser, Topical Platelet-Rich Plasma

Platelet-Rich Plasma in the Treatment of Alopecia Areata: A Review.

Platelet-rich plasma (PRP) is an autologous preparation of plasma with concentrated platelets containing various growth factors and cytokines that enhance the body's inherent capacity to repair and regenerate hair follicles. A few studies and case reports support the use of PRP for the treatment of alopecia areata (AA). Further large-scale studies are needed to evaluate the efficacy of PRP as monotherapy or in association with other therapeutic modalities for AA. Although PRP is relatively safe and potentially effective, there is no standardized protocol or recommendations for the number of PRP sessions required to treat and maintain hair growth.