Search

everythingexperts & clinicslearnfaqsresearchcommunity

for

Search:↓

This study found that segmented heterochromic scalp hair associated with iron-deficiency anemia in a teenage girl completely recovered following iron supplementation, suggesting a role for iron in hair pigment production.

This article presents a case of a seventeen-year-old female with dermatopathia pigmentosa reticularis and emphasizes the importance of distinguishing its clinical features from other similar disorders, supported by dermoscopic and histopathological findings.

This study found that splenic melanosis in C57BL/6 mice is associated with synchronized skin melanization during hair cycles, but decreases with age.

This study found that the cell of origin in mouse skin affects melanoma phenotype and response to therapies, despite the presence of the same genetic mutations.

This article reports two new cases of erythromelanosis follicularis faciei in women and includes a literature review on this rarely diagnosed condition.

This study observed a significant rise and fall in black hair dye dermatitis cases over six years, primarily affecting middle-aged men, with most cases presenting as chronic pigmented lichenoid photodermatitis.

This review discusses the complex relationship between melasma and factors like female sex hormones, genetics, and ultraviolet light exposure, but reports no new clinical findings.

This review discusses the biology and development of skin melanocytes, but reports no new clinical findings.

This report describes a case of Rothmund-Thomson type congenital poikiloderma, noting minor skin changes, hair loss, and slightly elevated lysine and cystine in the urine.

In this study, researchers discovered two new signaling pathways that regulate how melanocytes establish pigment patterns in reconstituted hair-bearing skin, offering insights that could inform strategies to prevent hair greying.

This review highlights the significance and future potential of forensic DNA phenotyping for predicting human phenotypes from crime scene DNA but reports no new results.

Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.

This report describes two cases of sustained hair repigmentation related to porphyria cutanea tarda, though the underlying mechanism remains unclear.

This study investigated novel genetic tools to manipulate hair follicle compartments in mice and found that altering dermal papilla genes can significantly impact hair pigmentation.

In this report, two cases of melanocytic matricoma, a rare benign hair follicle lesion that mimics melanoma and basal cell carcinoma, were described and successfully treated with complete surgical excision. Histological analysis was crucial for differentiation from similar malignant lesions.

This case report describes a pediatric instance of follicular atopic dermatitis in a dark-skinned patient, highlighting its unique clinical and dermoscopic features, such as purplish to brownish scaly papules and specific dermoscopic patterns, which are crucial for enhancing diagnostic accuracy in similar cases.

This case report documents two instances of red-haired men with patch-type alopecia areata, where hair regrowth occurred in black rather than red, an unusual phenomenon potentially linked to pigmentation and receptor pathways.

This review discusses recent advances in the understanding of follicular melanogenesis and its pathological changes, particularly how these changes are associated with specific disease phenotypes, but it reports no new results.

The man has a disease causing skin patches, thickened nerves, and mild muscle weakness.

This article reports a rare combination of rapid-onset halo nevi, nonsegmental vitiligo, and premature scalp hair graying.

This abstract describes the role of melanin in determining hair color and protecting against UV radiation, highlighting how its production affects hair health, growth, and vitality, with reduced production contributing to greying with age.

This report describes two rare cases of desmoplastic melanoma presenting as alopecia neoplastica, highlighting a potential diagnostic pitfall for clinicians examining patients with scar-like alopecia.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

This review discusses the role of melanocytes in skin pigmentation and UV protection, explaining their interactions with keratinocytes and highlighting their involvement in processes like melanin transfer and melanoma development, but reports no new results.

In this study, silencing BMAL1 and PER1 genes increased melanogenic activity in follicular and epidermal melanocytes, suggesting that peripheral circadian clocks may regulate melanin pigmentation.

This study reported that in men with androgenic alopecia, a distinct subclinical hyperpigmentation pattern was observed in the scalp, associated with baldness severity and possibly linked to local melanin production by pilosebaceous units.

This case report describes a 47-year-old male with rare total melanonychia linked to vitamin B12 deficiency, whose nail discoloration and constitutional symptoms improved following vitamin B12 supplementation.

This article reviews follicular melanogenesis, detailing how melanin synthesis and its regulation in hair follicles depend on a complex interplay of cellular and molecular mechanisms, but reports no new clinical findings.