Biomaterial Database

Hyperpigmentation of the skin associated with minocycline therapy. 1985

G Gordon, and B M Sparano, and M J Iatropoulos

Skin biopsy specimens and discolored fingernails from minocycline-treated patients were examined by light and electron microscopy, histochemistry, and energy-dispersive x-ray analysis. Both hyperpigmented and adjacent normally pigmented skin samples contained pigment-laden macrophages in the dermis, although these cells were more numerous in the hyperpigmented skin samples. Elemental analysis showed that both pigment deposits and stratum corneum of hyperpigmented skin samples contained iron and calcium. Discolored areas of fingernails from a minocycline-treated patient also contained iron and calcium. Both skin and nail discoloration were possibly due to the presence of an iron chelate of minocycline and/or quinoid derivatives of minocycline. The presence of iron-containing pigment in normal as well as hyperpigmented skin may have predisposed to formation of minocycline-associated pigment in these patients.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008911	Minocycline	A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections.	Akamin,Akne-Puren,Aknemin,Aknin-Mino,Aknosan,Apo-Minocycline,Arestin,Blemix,Cyclomin,Cyclops,Dentomycin,Dynacin,Icht-Oral,Klinomycin,Lederderm,Mestacine,Minakne,Mino-Wolff,Minocin,Minocin MR,Minoclir,Minocycline Hydrochloride,Minocycline Monohydrochloride,Minocycline, (4R-(4 alpha,4a beta,5a beta,12a beta))-Isomer,Minolis,Minomycin,Minoplus,Minotab,Minox 50,Mynocine,Akne Puren,Aknin Mino,Apo Minocycline,Hydrochloride, Minocycline,Icht Oral,Mino Wolff,Monohydrochloride, Minocycline
D009262	Nails	The thin, horny plates that cover the dorsal surfaces of the distal phalanges of the fingers and toes of primates.	Fingernails,Toenails,Fingernail,Nail,Toenail
D010859	Pigmentation Disorders	Diseases affecting PIGMENTATION, including SKIN PIGMENTATION.	Incontinentia Pigmenti Achromians,Ito Syndrome,Schamberg's Disease,Schamberg Disease,Disease, Schamberg,Disease, Schamberg's,Disorder, Pigmentation,Disorders, Pigmentation,Pigmentation Disorder,Schambergs Disease,Syndrome, Ito
D003875	Drug Eruptions	Adverse cutaneous reactions caused by ingestion, parenteral use, or local application of a drug. These may assume various morphologic patterns and produce various types of lesions.	Dermatitis Medicamentosa,Dermatitis, Adverse Drug Reaction,Maculopapular Drug Eruption,Maculopapular Exanthem,Morbilliform Drug Reaction,Morbilliform Exanthem,Drug Eruption,Drug Eruption, Maculopapular,Drug Eruptions, Maculopapular,Drug Reaction, Morbilliform,Drug Reactions, Morbilliform,Eruption, Drug,Eruption, Maculopapular Drug,Eruptions, Drug,Eruptions, Maculopapular Drug,Exanthem, Maculopapular,Exanthem, Morbilliform,Exanthems, Maculopapular,Exanthems, Morbilliform,Maculopapular Drug Eruptions,Maculopapular Exanthems,Morbilliform Drug Reactions,Morbilliform Exanthems,Reaction, Morbilliform Drug,Reactions, Morbilliform Drug
D004577	Electron Probe Microanalysis	Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a wavelength characteristic of that element and an intensity related to its concentration. It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode.	Microscopy, Electron, X-Ray Microanalysis,Spectrometry, X-Ray Emission, Electron Microscopic,Spectrometry, X-Ray Emission, Electron Probe,X-Ray Emission Spectrometry, Electron Microscopic,X-Ray Emission Spectrometry, Electron Probe,X-Ray Microanalysis, Electron Microscopic,X-Ray Microanalysis, Electron Probe,Microanalysis, Electron Probe,Spectrometry, X Ray Emission, Electron Microscopic,Spectrometry, X Ray Emission, Electron Probe,X Ray Emission Spectrometry, Electron Microscopic,X Ray Emission Spectrometry, Electron Probe,X-Ray Microanalysis,Electron Probe Microanalyses,Microanalyses, Electron Probe,Microanalysis, X-Ray,Probe Microanalyses, Electron,Probe Microanalysis, Electron,X Ray Microanalysis,X Ray Microanalysis, Electron Microscopic,X Ray Microanalysis, Electron Probe
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012867	Skin	The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.