ArticleInternational journal of molecular sciences2017
Evaluation of Not-Activated and Activated PRP in Hair Loss Treatment: Role of Growth Factor and Cytokine Concentrations Obtained by Different Collection Systems.
Article in International journal of molecular sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
80 citing papers in PubMed, 9 syntheses or guidelines pooled it, 186 citations in OpenAlex.
- Autolougous platelet concentrates in esthetic medicine.Periodontology 2000 · 2025Pooled it
- Comparison of single-spin to double-spin platelet-rich plasma centrifugation methods in the treatment of androgenic alopecia: a systematic review and meta-analysis of randomized controlled trials.Frontiers in medicine · 2025Pooled it
- Meta-Analysis of Efficacy of Platelet-Rich Plasma Combined with Minoxidil for Androgenetic Alopecia.Aesthetic plastic surgery · 2024Pooled it
- Platelet-rich plasma for the treatment of alopecia: a systematic review and meta-analysis.Blood transfusion = Trasfusione del sangue · 2023Pooled it
- Therapeutic Potential of Platelet-Rich Plasma in Canine Medicine.Archives of Razi Institute · 2021Pooled it
- Systematic Review: Adipose-Derived Mesenchymal Stem Cells, Platelet-Rich Plasma and Biomaterials as New Regenerative Strategies in Chronic Skin Wounds and Soft Tissue Defects.International journal of molecular sciences · 2021Pooled it
- Systematic Review-The Potential Implications of Different Platelet-Rich Plasma (PRP) Concentrations in Regenerative Medicine for Tissue Repair.International journal of molecular sciences · 2020Pooled it
- Systematic Review of Platelet-Rich Plasma Use in Androgenetic Alopecia Compared with MinoxidilInternational journal of molecular sciences · 2020Pooled it
- Is autologous platelet-rich plasma capable of increasing hair density in patients with androgenic alopecia? A systematic review and meta-analysis of randomized clinical trials.Anais brasileiros de dermatologiaPooled it
- Comparative Evaluation of the Clinical Efficacy of PRP-Therapy, Minoxidil, and Their Combination with Immunohistochemical Study of the Dynamics of Cell Proliferation in the Treatment of Men with Androgenetic Alopecia.International journal of molecular sciences · 2020Trial
- A randomized, double-blind, vehicle-controlled clinical study of hair regeneration using adipose-derived stem cell constituent extract in androgenetic alopecia.Stem cells translational medicine · 2020Trial
- Intervention With Autologous Platelet-Containing Plasma for Immature Atrophic Facial Scars: A Quantitative Case Study.Clinical case reports · 2026Article
- Novel Combination Scalp Therapy for Androgenetic Alopecia: A Preliminary Retrospective Case Series with an Illustrative Four-Year Case.Journal of clinical medicine · 2026Article
- Effect of Platelet-Rich Plasma (PRP) on Dermal Skin Flap Survival: An Experimental Study in Rats.Cureus · 2026Article
- Baseline Neutrophil-to-Lymphocyte Ratio Stratifies Early Trichoscopic Response to Platelet-Rich Plasma-Based Regimens in Non-Scarring Alopecia: A Real-World Cohort with Internal Validation Using an Interpretable Neural Network.Life (Basel, Switzerland) · 2026Article
- Multimodal mechanisms of platelet-rich plasma in bone defect repair: Angiogenesis, inflammation modulation, and metabolic regulation.Regenerative therapy · 2025Review
- Platelet-Rich Plasma (PRP): Molecular Mechanisms, Actions and Clinical Applications in Human Body.International journal of molecular sciences · 2025Review
- Platelet-Rich Plasma in the Management of Alopecia: A Systematic Review and Meta-Analysis of Clinical Evidence.Dermatology and therapy · 2025Review
- Proteins from Stressed Mesenchymal Stem Cells Can Repair Hair Follicles and Promote Hair Regeneration.ACS pharmacology & translational science · 2025Article
- Inflammatory Signatures and Biological Markers in Platelet-Rich Plasma Therapy for Hair Regrowth: A Comprehensive Narrative Analysis.Diagnostics (Basel, Switzerland) · 2025Review
20 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Platelet rich plasma (PRP) was tested as a potential therapy for androgenetic alopecia (AGA) through two different clinical protocols in which one population (18 participants) received half-head treatment with autologous non-activated PRP (A-PRP) produced by CPunT Preparation System (Biomed Device, Modena, Italy) and the other half-head with placebo, and a second separated population in which all participants (n = 6, 3 participants per group) received treatment with calcium-activated PRP (AA-PRP) produced from one of two different PRP collection devices (Regen Blood Cell Therapy or Arthrex Angel System). For the A-PRP study, three treatments were administered over 30-day intervals. Trichoscan analysis of patients, three months post-treatment, showed a clinical improvement in the number of hairs in the target area (36 ± 3 hairs) and in total hair density (65± 5 hair cm2), whereas negligible improvements in hair count (1.1± 1.4 hairs) and density (1.9 ± 10.2 hair cm2) were seen in the region of the scalp that received placebo. Microscopic evaluation conducted two weeks after treatment showed also an increase in epidermal thickness, Ki67+ keratinocytes, and in the number of follicles. The AA-PRP treatment groups received a singular set of injections, and six months after the treatments were administered, notable differences in clinical outcomes were obtained from the two PRP collection devices (+90 ± 6 hair cm2 versus -73 ± 30 hair cm2 hair densities, Regen versus Arthrex). Growth factor concentrations in AA-PRP prepared from the two collection devices did not differ significantly upon calcium activation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.