Ehlers-Danlos Syndrome

What is Ehlers-Danlos syndrome?

Ehlers-Danlos syndromes are a group of disorders which share common features including easy bruising, joint hypermobility (loose joints), skin that stretches easily (skin hyperelasticity or laxity), and weakness of tissues.

The Ehlers-Danlos syndromes are inherited in the genes that are passed from parents to offspring. They are categorized according to the form of genetic transmission into different types with many features differing between patients in any given type. The fragile skin and loose joints is often a result of abnormal genes that produce abnormal proteins that confer an inherited frailty of collagen (the normal protein “glue” of our tissues).

In 2001, researchers discovered a new form of Ehlers-Danlos syndrome that is caused by an inherited abnormality in a protein other than collagen that also normally plays a role in binding together the cells of our tissues (including the skin, tendons, muscle, and blood vessels). Abnormalities in this protein, called tenascin, also lead to a form of Ehlers-Danlos syndrome. Researchers suspect that tenascin could play a role in regulating the normal distribution of collagen in the connective tissues of the body. Read more

Ehlers Danlos Syndrome (pictures)

Ehlers-Danlos Syndrome (EDS) (also known as “Cutis hyperelastica”) is a group of inherited connective tissue disorders, caused by a defect in the synthesis of collagen (a protein in connective tissue). The collagen in connective tissue helps tissues to resist deformation (increases its elasticity). In the skin, muscles, ligaments, blood vessels, and visceral organs collagen plays a very significant role and with reduced elasticity, secondary to abnormal collagen, pathology results. Depending on the individual mutation, the severity of the syndrome can vary from mild to life-threatening. There is no cure and treatment is supportive, including close monitoring of cardiovascular system.

The syndrome is named after two doctors, Edvard Ehlers of Denmark, and Henri-Alexandre Danlos of France, who identified it at the turn of the 20th century.Symptoms vary widely based on which type of EDS the patient has. In each case, however, the symptoms are ultimately due to faulty or reduced amounts of Type III collagen. EDS most typically affects the joints, skin, and blood vessels, the major signs and symptoms include: Read more