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This narrative review reports that IL-17 and IL-23 inhibitors, while effective for psoriasis and other inflammatory diseases, can cause a variety of skin reactions that resemble primary dermatoses, highlighting the need for careful diagnosis and varied management strategies.

This study found that limb hair loss in frontal fibrosing alopecia is inflammatory and permanent, but lacks the classic scarring features seen in scalp alopecia, prompting potential misdiagnosis as alopecia areata.

This study reported that adding the topical product CG210 to oral finasteride 1mg significantly increased hair diameter more than finasteride alone in male androgenetic alopecia patients already stabilized on finasteride treatment.

This study found that concentrations of THCCOOH in hair do not correlate well with self-reported cannabis use due to inaccuracies in the self-reported data, but it provides preliminary insights into usage patterns.

In this prospective cohort study, 62.5% of alopecia areata patients achieved significant hair regrowth by week 24, but 31.8% experienced relapses by week 52, with baseline severity and disease activity influencing outcomes and quality of life improving significantly over the study period.

This study found no significant difference in CUX1 core promoter methylation levels between different lambskin patterns in Hu sheep, suggesting other mechanisms influence CUX1 expression related to hair follicle development.

Melatonin affects when and how goat hair grows by changing gene activity at different stages.

Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.

Melatonin affects when and how certain genes work during the different stages of goat hair growth.

In this study, researchers found that severe androgenic alopecia in hospitalized men was associated with a higher likelihood of testing positive for COVID-19.

This review discusses the increased incidence of hair loss and telogen effluvium among COVID-19 patients and evaluates existing evidence for regenerative treatments like PRP and HFSCs, finding limited published data.

This research highlights the lack of clinical evidence linking GLP-1 agonists, commonly used in treating type 2 diabetes and obesity, to hair loss, despite theoretical concerns regarding potential hair health impacts.

This review discusses various types of hair loss associated with COVID-19 and vaccinations, highlighting acute telogen hair loss as the most common form, but reports no new clinical results.

COVID-19 can cause different skin issues, including rashes and hair loss.

This study found that, in female patients with pattern hair loss, injections of adipose-derived stem cells increased hair density and thickness, reduced perifollicular inflammation, and enhanced markers associated with hair cycle regeneration.

Minoxidil, a common hair loss treatment, might work by counteracting a hormone that reduces hair growth and promotes hair loss.

In this study, researchers found a significant association between the rs13405699 SNP at 2q31.1 and male pattern baldness among Han Chinese men, suggesting genetic influence on this condition in this population.

This study observed that among 120 patients recovering from COVID-19, severe diffuse hair loss typically began less than two months post-infection, with the majority of patients experiencing a severe degree of hair loss and positive hair pull tests, often alongside vitamin D deficiency.

This study demonstrates that human skin is capable of steroid hormone synthesis, but its role in androgenic skin disorders like acne and alopecia is yet to be clarified.

This review discusses the disproportionate negative impact of the COVID-19 pandemic on individuals with chronic medical conditions and calls for strategies to protect these vulnerable populations.

This study observed a high prevalence of androgenetic alopecia in patients hospitalized with severe COVID-19, with 79% of men and 42% of women affected, suggesting a potential link between androgen sensitivity and COVID-19 severity.

This study suggests that finasteride's effect on promoting hair growth in men with androgenetic alopecia may be due to its inhibition of 5aR2 localized in hair follicles.

Stem cells in developing hair follicles move to specific areas as they mature.

This letter discusses the potential connection between androgenetic alopecia and COVID-19, suggesting a possible new therapy, but it reports no new results.

This study revealed that during fetal development, MITF and Mart-1 expressing melanocytes progress from the dermis to the epidermis and hair follicles, with MITF possibly marking follicular stem cells.

This review discusses the dual role of testosterone in COVID-19 progression and suggests its importance in understanding the disease's mechanisms, highlighting the need for further targeted research.

This study found that four microRNAs, which were significantly upregulated in balding hair follicle papilla cells, could play a role in the development of male pattern baldness.