| Health / Medical Topics |
Porphyrin
A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin. (NLM, Medical Subject Headings)
YOU MAY ALSO LIKE
A cutaneous form of the genetic photosensitive disease, porphyria, that is characterized by onset in adult life and the presence of scarring…
A group of genetic or acquired metabolic disorders characterized by defects in the enzymes that are involved in the heme synthesis. …
A benign, well circumscribed sweat gland neoplasm with eccrine or apocrine differentiation. It usually presents as a solitary, dome-shaped papule, nodule, or…
A rare, congenital disorder of the eccrine sweat ducts that presents as grouped keratotic papules and plaques with a linear distribution and/or…
A clonal proliferation of abnormal keratinocytes characterized by the development of localized or multiple atrophic skin patches surrounded by an annular keratotic…
The meat of the domestic pig.
