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This study found that higher doses of zinc increased cell growth but also induced cell death in human follicle dermal papilla cells, suggesting a narrow dosage range may affect hair regrowth.

This study found that treatment with a synthesized autophagy inducer improved skin barrier function and hair damage in dogs with atopic dermatitis or hyperadrenocorticism by reducing pro-inflammatory cytokines.

This study found that aminoguanidine induces VEGF mRNA expression in stored hair follicle micrografts and outer root sheath cells, suggesting potential for enhancing growth factor production during storage.

In this study, neonatal mouse mesenchymal cells showed hair-inducing capabilities, which were lost during in vitro propagation but could be partially restored through specific high-density culture methods.

This study observed that activating Wnt signaling pathways increased the efficiency of reprogramming human fibroblasts into induced pluripotent stem cells compared to untreated cells.

This study found that microencapsulated dermal papillae cells induced hair follicle regeneration in rat ears, differing from normal follicles in configuration, size, number, and differentiation degree.

This study found that microencapsulated dermal papilla cells implanted into mice ears led to the successful regeneration of hair follicles, with APA microencapsulations of 400µm diameter allowing effective nutrient exchange.

This study suggests that inaudible sound at 30 kHz may promote hair growth and inhibit hair loss signals in human dermal papilla cells, indicating potential as a new treatment for androgenic alopecia.

This study found that PRP injections may improve hair density and reduce hair loss in patients with androgenetic alopecia without significant side effects, but further research is needed to confirm efficacy.

This study found that recombinant human HGF/SF injections altered hair follicle growth cycles and mildly promoted hair elongation in mice, depending on their hair cycle stage.

This study found that interfollicular injection of autologous CD34+ cell-containing PRP preparation improved hair count and thickness in patients with pattern hair loss, with better results than placental extract treatment.

This study reports that intralesional triamcinolone acetonide was effective and well-tolerated for treating extensive alopecia areata in patients who often showed specific initial hair characteristics.

This introduction reviews historical use of steroids for alopecia treatment, mentioning early cases of hair regrowth with cortisone acetate but provides no new clinical data.

This study found that platelet-rich plasma injections significantly improved hair density, thickness, and patient satisfaction in women with female pattern hair loss compared to a placebo.

This report describes a case of granulomatous reaction to injectable poly-L-lactic acid in the periorbital area and suggests surgical excision as an effective treatment for persistent nodules.

This study found no clinically significant effects of intraovarian injection of platelet-rich plasma on ovarian function over one year in patients with extremely low functional ovarian reserve.

This report discusses historical cases of visual side effects from scalp corticosteroid injections for alopecia areata and attributes their rarity now to improved injection techniques and smaller particulate sizes in suspensions.

This letter to the editor discusses a potential link between new onset alopecia areata and SARS-CoV-2 infection, but reports no new clinical results.

This study found that intraovarian PRP treatment in women with low ovarian reserve was associated with significant increases in serum AMH levels in some patients, typically within four weeks.

The authors concluded that intralesional triamcinolone acetonide may benefit patients with patch-type alopecia areata, but the evidence is limited due to small, bias-prone studies with variations in treatment protocols.

This study found that BD 1/4 dilution was the most effective corticosteroid concentration for intralesional injection to treat localized alopecia areata in adults, with fewer adverse effects than TA.

New method measures minoxidil concentration faster, more accurately, and automatically.

In this study, FCO2 laser treatment showed significantly better improvement for alopecia areata compared to traditional intralesional corticosteroid injections, with no serious side effects or relapse observed.

This study reports that mesotherapy for androgenetic alopecia may paradoxically lead to hair loss and scarring, highlighting the need for improved regulation and monitoring of this treatment.

This study found that the FIA-amperometric method for minoxidil quantification in pharmaceutical preparations provided accurate results comparable to the conventional UV technique, indicating no systematic errors.

This paper contains author contact information and disclosures without reporting new research findings or results.

This study found that T cell-deficient mice developed distinct papilloma phenotypes after MmuPV1 infection, and hyperimmune sera transfer could prevent this infection.

This report presents the first known case of localized nonscarring and scarring alopecia following autologous fat grafting and reviews literature on alopecia caused by facial fillers, suggesting vascular compromise as a potential cause.

Using a vibrating device during injections can help reduce pain.