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PubMed1995

Isolated dyskeratotic acanthoma. A variant of isolated epidermolytic acanthoma.

Disorders affecting the maturation of the epidermis are regarded as incidental findings in normal skin and otherwise unrelated benign lesions. These include epidermolytic hyperkeratosis, focal acantholytic dyskeratosis, and pagetoid dyskeratosis. The former two entities also occur as primary pathologic lesions. We report a hyperkeratotic lesion with a specific histologic pattern consisting of dyskeratotic cells throughout the epidermis and a parakeratotic horn, with large, rounded cells at all levels of the stratum corneum. Because we believe it to be a variant of the solitary, acquired lesions characterized by abnormal epidermal maturation, such as epidermolytic acanthomas, we suggest the term "dyskeratotic acanthoma" for this lesion.

Aged↗
PubMed1977

Isolation and oxidative properties of intact mitochondria isolated from spinach leaves.

A procedure was described for preparing intact mitochondria from spinach (Spinacia oleracea L.) leaves. These mitochondria oxidized succinate, malate, pyruvate, alpha-ketoglutarate, and NADH with good respiratory control and ADP/O ratios comparable to those observed with mitochondria from other plant tissues. Glycine was oxidized by the preparations. This oxidation linked to the mitochondrial electron transport chain, was coupled to three phosphorylation sites and was sensitive to electron transport and phosphorylation inhibitors.Cyanide completely inhibited the oxidation of NADH. The oxidation of succinate, malate, and glycine was only partially inhibited.

Journal Article↗