Clinical Features, Diagnostic Challenges, and Therapeutic Outcomes of 105 Pilomatricoma Cases.

Purpose: To conduct a retrospective review and analysis of clinical data on pilomatricoma over the past 9 years, with a focus on clinical characteristics, Diagnostic Challenges, and Therapeutic Outcomes.

Patients And Methods: We performed a retrospective study on patients diagnosed with pilomatricoma at our department from 2013 to 2022. Data collected from hospital and outpatient records, as well as pathological reports, included patient age, sex, onset, clinical and histopathological features, preoperative diagnosis, treatment methods, recurrence, and outcomes.

Platelet-rich plasma-derived exosomes stimulate hair follicle growth through activation of the Wnt/β-Catenin signaling pathway.

Background: Androgenetic alopecia (AGA) is a common type of hair loss that affects a large segment of the global population, significantly influencing individuals' appearance and mental health. Existing treatments like minoxidil and finasteride have limited effectiveness and can cause side effects, highlighting the need for alternative therapies.

Objective: This study aims to explore the effectiveness of platelet-rich plasma-derived exosomes (PRP-Exos) in stimulating hair follicle growth and the proliferation of human dermal papilla cells (DPCs), as well as to investigate the mechanisms involved.

Multi-omics analyses, cell experiments, and network pharmacology tools identified key proteins and candidate drugs for alopecia areata treatment.

Purpose: Alopecia Areata (AA) is an inflammatory non-cicatricial alopecia with a high prevalence. Some patients with AA show an inferior response to treatment. To find key proteins in AA, Genome-wide association study data from three cohorts were analyzed using Mendelian randomization (MR) method.

Whether the transient hair shedding phase exist after minoxidil treatment and does it predict treatment efficacy? A retrospective study in androgenetic alopecia patients.

Purpose: Minoxidil is a routinely used drug in treating multiple hair disorders. This study aimed to investigate the facticity of the temporal increase in the hair shedding amount after topical use of minoxidil.

Materials And Methods: We selected 49 patients who used 2% or 5% minoxidil topically to treat androgenetic alopecia for 24 weeks.

The role of SFRP1 in human dermal papilla cell growth and its potential molecular mechanisms as a target in regenerative therapy.

Background: Secreted frizzled-related protein 1 (SFRP1) inhibits Wnt signaling and is differentially expressed in human hair dermal papilla cells (DPCs). However, the specific effect of SFRP1 on cell function remains unclear. Telomerase reverse transcriptase (TERT) representing telomerase activity was found highly active around the hair dermal papilla.

Dutasteride for the Treatment of Androgenetic Alopecia: An Updated Review.

Background: Androgenetic alopecia (AGA) is a common skin disease characterized by gradually miniaturized hair follicles, which manifests as progressive hair thinning and produces a bald appearance. Currently, finasteride is approved by the Food and Drug Administration (FDA) for the treatment of AGA, but its efficacy remains poor in some patients.

Summary: Compared to finasteride, oral dutasteride has better efficacy and similar tolerability, and most adverse events are mild and reversible, making it an effective option for AGA, but its sexual adverse events and potential psychiatric risks still need to be concerned.

Causal effects of genetically determined metabolites on androgenetic alopecia: A two-sample Mendelian randomization analysis.

Background: Androgenic alopecia (AGA) is the most common non-scarring alopecia disorder. Given its increasing incidence and onset during adolescence, AGA significantly impacts both the physical and psychological well-being of affected individuals. Emerging evidence suggests a pivotal role of metabolites in AGA.

Causal Effects of Lipids-Related Metabolites on Androgenic Alopecia: A Mendelian Randomization Study.

Purpose: To investigate whether increased levels of lipids-related metabolites (LRMs) result in androgenic alopecia (AGA).

Patients And Methods: A two-sample Mendelian randomization (MR) study was designed, and single nucleotide polymorphisms (SNPs) respectively related to nine LRMs were selected from the genome-wide association study (GWAS) dataset. An MR analysis was performed to assess the causal association between LRMs and AGA.

Effectiveness and safety of baricitinib in patients with moderate-to-severe refractory alopecia areata in real world: An open-label, single-center study.

Purpose: Baricitinib is a small-molecular drug that selectively inhibits the Janus Kinase (JAK) 1 and 2. However, it showed various efficiency and safety in treating moderate-to-severe alopecia areata (AA). This study was to describe the real-world effectiveness of baricitinib in treating moderate-to-severe refractory AA.

The role of telomerase in hair growth and relevant disorders: A review.

Background: Hair diseases may present with hair loss, hirsutism, hair melanin abnormalities and other manifestations. Hair follicles are known as mini-organs that undergo periodic remodeling, and their constant regeneration in vivo reflects interesting anti-aging functions. Telomerase prevents cellular senescence by maintaining telomere length, but its excessive proliferation in cancer cells may also induce cancer.

The Efficacy and Safety of Oral and Topical Spironolactone in Androgenetic Alopecia Treatment: A Systematic Review.

Introduction: Androgenetic alopecia (AGA) has negative impacts on both men and women in terms of appearance and mental stress. Spironolactone is a synthetic aldosterone receptor antagonist known to stimulate hair growth and has been widely used by dermatologists to treat AGA.

Objective: To conduct a systematic review evaluating the efficacy and safety of topical and oral spironolactone in AGA treatment.

Deletion of MyD88 adaptor in nociceptor alleviates low-dose formalin-induced acute pain and persistent pain in mice.

The myeloid differentiation factor 88 (MyD88) adaptor mediates signaling by Toll-like receptors and some interleukins (ILs) in neural and non-neuronal cells. Recently, MyD88 protein was found to express in primary sensory neurons and be involved in the maintenance of persistent pain induced by complete Freund's adjuvant, chronic constriction injury and chemotherapy treatment in rodents. However, whether MyD88 in nociceptive neurons contributes to persistent pain induced by intraplantar injection of formalin remains elusive.

Cytokine activin C ameliorates chronic neuropathic pain in peripheral nerve injury rodents by modulating the TRPV1 channel.

Background And Purpose: The cytokine activin C is mainly expressed in small-diameter dorsal root ganglion (DRG) neurons and suppresses inflammatory pain. However, the effects of activin C in neuropathic pain remain elusive.

Experimental Approach: Male rats and wild-type and TRPV1 knockout mice with peripheral nerve injury - sciatic nerve axotomy and spinal nerve ligation in rats; chronic constriction injury (CCI) in mice - provided models of chronic neuropathic pain.

T-type calcium channels, but not Cav3.2, in the peripheral sensory afferents are involved in acute itch in mice.

T-type calcium channels are prominently expressed in primary nociceptive fibers and well characterized in pain processes. Although itch and pain share many similarities including primary sensory fibers, the function of T-type calcium channels on acute itch has not been explored. We investigated whether T-type calcium channels expressed within primary sensory fibers of mouse skin, especially Ca3.