We recently identified mutations of the keratinocyte transglutaminase gene as a cause of lamellar ichthyosis. In this study we analyzed two sporadic cases of lamellar ichthyosis. Transglutaminase activity measured in membrane extracts from cultured differentiating keratinocytes was within the range observed in normal individuals. Western blot and Northern blot analysis revealed normal size and ...

Ichthyosis is a heterogeneous family of hereditary keratinisation disorders mostly characterized by variable erythema of the whole body and different scaling patterns. Although these disorders affect tissues of epidermal origin, there is little evidence regarding the oral and dental manifestations of Lamellar Ichthyosis. A case report of early childhood caries in lamellar ichthyosis is presente...

To explore the usefulness of protein profiling for characterization of ichthyoses, we here determined the profile of human epidermal stratum corneum by shotgun proteomics. Samples were analyzed after collection on tape circles from six anatomic sites (forearm, palm, lower leg, forehead, abdomen, upper back), demonstrating site-specific differences in profiles. Additional samples were collected ...

objective autosomal recessive congenital ichthyosis (arci) is a rare, heterogenous keratinization disorder of the skin, classically divided into two clinical subtypes, lamellar ichthyosis (li) and nonbullous congenital ichthyosi-formis erythroderma (ncie). lamellar ichtyosis is caused by mutations in the tgm1 gene that encodes transglutaminase 1 enzyme, which is critical for the assembly of the...

Harlequin ichthyosis is a rare congenital ichthyosis classified under the category of Autosomal Recessive Congenital Ichthyoses, which also include lamellar ichthyosis and congenital ichthyosiform erythroderma. It is caused by functional null mutations in the ABCA12 gene, a keratinocyte lipid transporter associated with lamellar granule formation. Patients have a classic clinical presentation a...

Collodion baby (CB) is normally diagnosed at the time of birth and refers to a newborn infant that is delivered with a lambskin-like membrane encompassing the total body surface. CB is not a specific disease entity, but is a common phenotype in conditions like harlequin ichthyosis, lamellar ichthyosis, nonbullous congenital ichthyosiform erythroderma, and trichothiodystrophy. We report a CB tha...

INTRODUCTION Lamellar Ichthyosis is an autosomal recessive, inherited skin disorder characterized by thickening, fissuring and scaling of the skin. OBJECTIVE To report a case of lamellar icthyosis and highlight the importance of monitoring corneal health in these patients. CASE We report a rare case of bilateral spontaneous corneal perforation in a patient with lamellar ichthyosis .The pati...

lamellar ichthyosis is one form of congenital autosomal recessive ichthyosis. to date, seven causative genes for arci have been identified. to understand further the genetic spectrum of the disease, we analyzed a four-generation iranian family with arci that had observable inheritance. exome sequencing data for one of the affected individuals with ichthyosis from a consanguineous iranian family...

ABCA12 is a member of the large superfamily of ATP-binding cassette (ABC) transporters, which bind and hydrolyze ATP to transport various molecules across limiting membranes or into vesicles. The ABCA subfamily members are thought to be lipid transporters. ABCA12 is a keratinocyte transmembrane lipid transporter protein associated with the transport of lipids in lamellar granules to the apical ...

We report spontaneous corneal perforation in a patient with lamellar ichthyosis. The patient presented with complaints of pain, redness, diminished vision, and discharge in her right eye for 15 days. Visual acuities were light perception in the right and 20/400 in the left eye. Cicatricial ectropion in both lower eyelids and 2 mm perforation site in the center of the right cornea were observed....