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In this study, patients with alopecia areata received a single intradermal injection of Wharton's jelly-derived mesenchymal stem cells, resulting in an average hair regrowth of 67% at treated sites within 24 weeks, demonstrating both efficacy and safety without side effects.

In this study, researchers developed a new microneedle patch delivery system for minoxidil, which enhanced its controlled release and improved hair growth in mice, potentially offering better treatment outcomes for androgenetic alopecia.

This systematic review concluded that mesotherapy shows potential for improving hair growth outcomes, yet lacks standardized regimens and requires further large-scale trials to establish its efficacy and safe use.

This review discusses the advancements and challenges in developing in vitro human skin models incorporating components like vasculature for drug testing and disease research, but reports no new clinical results.

This review discusses hypersensitivity reactions to anticoagulants like ASA and heparins, highlighting their rare but potentially life-threatening nature, and emphasizes the need for meticulous allergy testing to find safe alternatives.

This study found that intradermal injections of platelet-rich plasma were equally safe and effective for treating androgenetic alopecia, with higher platelet numbers possibly enhancing hair density and follicle diameter.

This paper discusses two preclinical models for studying alopecia areata and finds that testing new therapeutic agents should involve both the C3H/HeJ mouse model and the humanized mouse model for comprehensive insights.

This study demonstrated that novel cryomicroneedles loaded with hair follicle organoids (cryoMN@HFOs) can effectively deliver and develop into functional hair follicles after intradermal transplantation in animal experiments, suggesting promising potential for human hair follicle reconstruction.

This article reviews emerging treatments for androgenetic alopecia, including topical 5-alpha-reductase inhibitors and prostaglandin modulators, but reports no clinical results and calls for further efficacy evidence, especially for PRP.

In this study, murine follicular cell aggregates developed into hair-like structures in culture, which upon implantation into mice skin matured into complete hair follicles, suggesting potential for treating hair loss.

In this study, solid lipid microparticles loaded with lidocaine hydrochloride were developed to effectively deliver pain relief and antimicrobial benefits for wound management, demonstrated by testing with bioengineered skin substitutes and showing effectiveness against common wound-infecting bacteria.

This review explores the potential roles of extracellular vesicles in various medical fields, emphasizing their promise but noting the need for standardization and clinical testing before widespread application.

In this study, researchers described protocols using C3H/HeJ mice to reliably induce alopecia areata through full-thickness skin grafts or adoptive transfer of cultured lymphoid cells, offering valuable models for studying the disease and testing new drug therapies.

A man's red tattoo caused a skin reaction and hair loss in his beard, which improved after treatment.

This review examines skin diseases affecting the pinna of dogs and cats, highlighting those unique to this area and noting its role as a common initial site for several conditions; it reports no new results.

This literature study reviews the consequences of hair loss due to chemotherapy and nursing care interventions but reports no new clinical results.

This study reports that C3H/HeJ mice and DEBR rats serve as effective models for screening potential treatments for human alopecia areata, despite certain challenges in predictability and cost.

Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.

In this study, researchers measured that the MMP drug delivery technique administered approximately 1,175 μg/cm² of medication into the dermis of human skin, but these findings are specific to the experimental protocol used.

This study found that the patch assay effectively reconstituted mature hair follicles using culture-expanded human fetal cells and may serve as a method to assess cell trichogenicity.

This chapter covers various dermatological drugs, cosmetics, and topical agents, focusing on the properties and uses of propolis, but does not present new clinical findings.

This review examines experimental and clinical evidence on PDRN, a drug derived from salmon DNA that acts via the adenosine A2A receptor and shows promise for tissue repair and treatment of diabetic foot ulcers in regenerative medicine.

This article discusses the benefits of liposomes in cosmetic formulations, including enhanced hydration and protection for dry skin, but reports no new experimental findings.

This review discusses nearly 70 patent applications for the treatment of androgenetic alopecia and other hair conditions, highlighting the mechanisms of action explored but reports no clinical results.

This review discusses recent trends in non-surgical cosmetic dermatology procedures in the United States and reports no new clinical results, emphasizing the need for evidence-based evaluations of safety and efficacy.

In this study, a novel liposomal peptide formulation significantly enhanced hair growth in mice compared to minoxidil, but results on human tissue penetration were inconclusive, suggesting further research is needed for translation to human use.

This review discusses allergic reactions to pollen in dogs, cats, and horses and suggests that these animals' spontaneous allergies could serve as models for translational clinical studies applicable to human allergies.

This case report indicates that epidermal dysplasia in two West Highland White Terriers might be caused by a reaction to Malassezia infection or self-trauma, rather than being congenital.

This review discusses the potential of microneedles to enhance transdermal drug delivery by expanding the range of deliverable drugs, highlighting fabrication methods, material choices, and applications, but notes existing challenges with sustained delivery, cost-effectiveness, and large-scale production.

This review discusses the evolution and development of smart and multifunctional microneedles, highlighting their potential future importance in medical applications, but it reports no new experimental results.