In this animal study, rats treated with recombinant human growth hormone (at both low and high doses) experienced quicker burn wound healing than controls, with increased micro vessel density and altered expression of vascular endothelial growth factor, alongside changes in oxidative stress and inflammation markers.
This study observed that hair follicle cycling in mouse skin involves physiological vascular remodeling, with VEGF playing a key role, suggesting potential therapeutic approaches for hair growth disorders.
56 citations
,
November 2022 in “Biomolecules” This review explores the role of macrophage subsets in adult cutaneous wound healing and emphasizes their potential for therapeutic targeting, but reports no new experimental results.
16 citations
,
April 2016 in “PLoS ONE” In a porcine model, this study observed that using an External Tissue Expansion Device increased epidermis thickness, cell proliferation, and vessel density at fat graft recipient sites.
1 citations
,
January 2021 in “SSRN Electronic Journal” In this pilot study, the researchers observed that transplanting anagen hair follicles into human scars can promote remodeling of fibrotic tissue and inhibit pro-fibrotic factors, offering potential new treatments for mature scars.
6 citations
,
January 2023 in “npj regenerative medicine” This study found that transplanting hair follicles into human scars may remodel fibrotic tissue and reduce scarring by altering collagen structure and decreasing pro-fibrotic factors.
5 citations
,
February 2022 in “International Journal of Molecular Sciences” This review discusses the roles of distinct immune cell types in skin wound healing, highlighting findings from animal studies, but provides no new clinical results.
May 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that hair with lower levels of keratin associated proteins reduced the foreign body response in mouse subcutaneous implant tests compared to hair with higher keratin levels.
1 citations
,
May 2026 in “bioRxiv (Cold Spring Harbor Laboratory)” In laboratory studies on mice, Abstract UT-018, a stem cell chemoattractant formulation, was reported to significantly enhance wound healing and promote hair regeneration through mechanisms involving improved tissue formation, collagen organization, and follicular development.
July 2023 in “Clinical, cosmetic and investigational dermatology” In this study, reflectance confocal microscopy was used to diagnose periorificial dermatitis, revealing specific skin changes such as hair follicle dilatation, increased vascular density, and inflammation, which help distinguish it from similar conditions.
June 2023 in “Hanguk ingeurie hakoeji” This study found that consuming a fermented protein mixture for 60 days may increase hair density in healthy adults, although it did not significantly change other scalp or hair conditions like thickness, pore condition, or blood vessel exposure.
June 2004 in “Dermatologic Surgery” This study outlines a technique for hair transplantation that maintains natural hair flow and density by mimicking natural hair direction and angle without accelerating hair loss in the recipient area.
April 2021 in “Journal of Cosmetic Dermatology” Stem cell treatment improved hair density in female hair loss patient.
June 2026 in “Precision medicine and engineering.” In this study, researchers created a hydrogel that reduces oxidative stress and releases a pro-angiogenic drug in response to enzyme activity, which accelerated healing and improved tissue regeneration in chronic diabetic wounds during in vivo experiments.
July 2024 in “Frontiers in Bioengineering and Biotechnology” In this mouse study, the researchers found that cryopreserving nanofat at -20°C maintained its viability and regenerative potential, comparable to freshly generated nanofat, supporting its potential for repeated use in regenerative applications.
June 2021 in “European journal of medical and health sciences” This study reported that over 85% of patients with androgenic alopecia experienced very positive outcomes from platelet-rich plasma injections, showing improvements in hair mass and texture.
June 2024 in “Frontiers in pharmacology” This study found that a 2-deoxy-D-ribose gel stimulated hair follicle growth in mice with androgenic alopecia, showing effects similar to minoxidil without additional benefits from combining the two treatments.
183 citations
,
January 2014 in “BioMed Research International” This study reported that AA-PRP injections significantly increased hair count and density in individuals with pattern hair loss compared to baseline, demonstrating their potential for enhancing hair growth.
9 citations
,
June 2014 in “Journal of Craniofacial Surgery” The authors concluded that using an expanded temporoparieto-occipital scalp flap for sideburn reconstruction provides satisfactory hair direction and inconspicuous scars in both the donor and recipient areas, with few complications.
2 citations
,
November 2023 in “Skin Research and Technology” This study found that RCM combined with dermoscopy can differentiate disease states between alopecia areata, tinea capitis, nevus sebaceous, and linear scleroderma of the scalp by identifying distinct dermal and follicular patterns.
October 2025 in “Folia Morphologica” This study found that lymph vessel morphology and density in airways differed based on location and type of epithelium, with the highest density in the ciliated epithelium of the nasal passages and site-specific patterns apparent in both fetal and adult specimens.
2 citations
,
August 2022 in “Frontiers in Endocrinology” This study reported that myeloid-specific Wnt production did not affect wound healing or blood vessel density in mice but influenced endovascular progenitor cell kinetics during angiogenesis.
This study found that a modified scaffold with VEGF165 genetically modified hair follicle stem cells significantly promoted blood vessel growth and wound healing in rats, suggesting its potential as a skin substitute in clinical settings.
January 2011 in “Zhonghua zhongyiyao xuekan” This study found that Yiqi Huayu Chinese medicine may inhibit benign prostatic hyperplasia in rats by reducing MMP-2 levels and vessel renewal, with effects comparable to finasteride.
12 citations
,
January 1994 in “PubMed” This study found that elastic fibre arrangements in the skin of domesticated mammals vary with hair density, with densely-haired species having horizontal fibres and sparsely-haired ones exhibiting a sponge-like system.
22 citations
,
July 2019 in “PLOS ONE” This study found that lymphatic vessels promote hair follicle growth in mice and may represent new therapeutic targets for hair loss conditions.
April 2017 in “Journal of Investigative Dermatology” This study found that lymphatic vessels promote hair follicle growth in mice, suggesting new therapeutic strategies for hair loss treatments.
3 citations
,
April 2021 in “Biomolecules & Therapeutics” In a mouse model of chemotherapy-induced alopecia, this study found that enhancing ETV2 expression improved angiogenesis and hair regrowth following 5-fluorouracil treatment.
45 citations
,
October 2014 in “Stem cell research & therapy” This study found that using 3D Gel-C6S-HA scaffolds seeded with VEGF165-modified rat hair follicle stem cells enhanced angiogenesis and vascularization in tissue-engineered skin, improving wound healing.
45 citations
,
July 2006 in “Journal of Investigative Dermatology” This study found that doxorubicin disrupts hair-follicle-associated blood vessels, which may contribute to hair follicle dystrophy and alopecia in mice, but hair-follicle stem cells remained unaffected.