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Hair diameter diversity helps assess hair loss, but its standard measure varies by individual and ethnicity.

This study reported that intradermal injections of stem cell exosomes appeared safe and significantly improved hair density and diameter in male androgenetic alopecia patients over 24 weeks, suggesting the therapy may be a promising new treatment option worthy of further investigation.

Measuring the variety in hair thickness can help diagnose male pattern baldness in Korean men.

A new computer tool quickly measures hair thickness differences in people with common types of hair loss.

This study on UVB-exposed mice found that topical application of 10% Rosmarinus officinalis essential oil significantly increased hair length and follicle diameter, attributed potentially to its antioxidant compounds.

This study found that quantitative trichoscopy is a simple and effective method for determining hair density and thickness in Egyptians, establishing baseline values for clinical hair loss investigations.

This study did not report conclusive results on whether a higher dose of platelets in platelet-rich plasma treatment impacts hair density, emphasizing the need for further evaluation of the trial details.

Hair loss is due to thinner hairs, not less hairs; hair diameter indicates balding progression and treatment effectiveness.

This brief article is a response from the authors about hair density, hair diameter, and female pattern hair loss, and it reports no new clinical findings.

This study observed that in men with androgenetic alopecia, frontal hair regions showed reduced density, diameter, and growth rate compared to occipital regions, worsening with advanced stages.

This study found that hair diameter increases toward the scalp during pregnancy, a novel observation compared to the normal decrease seen in nonpregnant women.

In this study, variation in the KRTAP15-1 gene in goats was linked to changes in cashmere fibre diameter, with specific variants showing dominant or recessive effects.

This study found that spironolactone 100 mg daily did not demonstrate objective benefits in managing idiopathic hirsutism, as it increased hair shaft diameter without reducing serum androgen levels.

This study found that differences in cashmere fiber diameter in Tibetan cashmere goats are associated with variations in metabolic, hypoxic, and stress response-related proteins, offering insights for breeding strategies.

In this study, microarray and proteomic analyses indicated that genes involved in immune response, receptor binding, and growth factor activity might influence wool fibre diameter in sheep.

In this randomized, controlled trial, the researchers observed that sub-lingual minoxidil at doses of 1.35 mg and 4.05 mg, but not 0.45 mg, significantly increased hair fibre diameter in men with male androgenetic alopecia over 24 weeks, suggesting a dose-dependent reversal of follicle miniaturization.

Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.

Recent studies highlighted in this research suggest that alopecia types in men, traditionally thought to affect only certain scalp areas, can also impact the occipital region, which was previously presumed unaffected.

In this study, spironolactone alone and combined with oral contraceptive pills significantly reduced hair shaft diameter in women with hirsutism, with the combined treatment showing the most substantial improvement.

This study found that spironolactone alone or with oral contraceptive pills significantly reduced hair shaft diameter in women with hirsutism, with the greatest reduction observed for the combination treatment.

According to this study, rice bran oil was as effective as 2% minoxidil in improving hair growth parameters, such as VEGF expression, follicle diameter, and hair length, in Wistar rats treated for 21 days, showing potential for preventing hair thinning associated with aging.

This study found that trichoscopic measurements of hair density and diameter are useful for assessing the severity of female pattern hair loss and its progression.

This study using a humanized mouse model of androgenetic alopecia suggests that platelet-rich plasma may promote hair regrowth and improve hair characteristics in vivo.

This study found that a recessive mutation in the RHD4 gene of Arabidopsis thaliana leads to slower and more variable tip growth in seedling root hairs, resulting in shorter and wider hairs than in wild-type plants.

This study explored the genetic basis of fiber diameter in alpacas, identifying candidate genomic regions including four significant areas on VPA6, VPA9, VPA29, and an unassigned scaffold, using whole genome association analysis and a custom SNP microarray.

The study found that botulinum toxin-A significantly increased the diameter of the supratrochlear artery in a small patient group, suggesting potential vasodilatory benefits for treating ischemic conditions.

In this study, KRTAP28-1 variants were associated with wool fibre diameter in sheep, suggesting potential as a gene marker for reducing fibre diameter.

In this study, oral cyproterone acetate reduced hair density and diameter in women with idiopathic hirsutism, but the effects were not permanent after stopping treatment, and plasma androgen levels remained unchanged.