Related Experiment Video
Updated: Aug 29, 2026

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
Published on: May 1, 2015
Congenital cutis laxa syndrome: type II autosomal recessive inheritance
Beyhan Tüysüz1, Müjde Arapoğlu, Barbaros Ilikkan
1Division of Genetics and Teratology, Department of Pediatrics, Istanbul University Cerrahpaşa Faculty of Medicine, Istanbul, Turkey.
Abstract:
Cutis laxa is a term that refers to markedly loose skin that is not hyperelastic. It is regarded as a genetically heterogeneous group of diseases and is presently divided into five types. We report a male patient with type II autosomal recessive disease. The patient was the third child of first-cousin consanguineous, healthy parents. His two siblings died a few hours after birth. One of the siblings also had similar features and wrinkled skin. Our case had markedly loose and wrinkled skin especially over the dorsum of the hands and feet, and on the face and abdomen, dolichocephaly, hypertelorism, blepharochalasis, long filtrum, pectus excavatus, large fontanelles, prominent low-set ears and umbilical hernia. These findings and skin biopsy were consistent with cutis laxa syndrome. In addition to these findings, consanguinity, atypical facies, large fontanelles and umbilical hernia were typical manifestations of type II autosomal recessive cutis laxa.
Related Concept Videos
Sex-linked Disorders
Pedigree Analysis
Pleiotropy
Lysosomal Hydrolases
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Cystic Fibrosis: Pathogenesis
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
