What You Must Know about Sly Syndrome

What You Must Know about Sly Syndrome

As far as the sly syndrome is concerned, it is an autosomal recessive lysosomal storage ailment. If a patient is plagued with this condition, it’s differentiated by the shortage of a lysosomal enzyme called enzyme β-glucuronidase. It is an assemblage of disorders called mucopolysaccharidoses. These are lysosomal storage ailments and the lack of β-glucuronidase results in the accumulation of some complex carbohydrates in the human body, affecting primarily the organs and tissues. According to an article published on https://emedicine.medscape.com, the condition was named after a US physician and biochemist, William S. Sly. Hence, the name! Keep reading this article to learn about the disease in detail.

Know the symptoms

When it comes to the symptoms of the disease, they are similar to Hurler syndrome, MPS I. The major signs and indications are corneal opacity as well as iris coloboma in the eyes. A patient’s head, face, and neck have rough faces as well as macrocephaly, untimely closing of sagittal lambdoid sutures, anterior prominence, and J-form sella turcica. When the ailments affect the nose, it has anteverted nostrils together with a depressed nostril bridge. In the mouth, the disease affects too. You will notice cleft palate and alveolar processes. In the thorax, oar-form ribs and pectus carinatum are common. The other signs include a protruded abdomen.

When it comes to the spine, scoliosis, kyphosis, and hook-shaped deformities are common in the lumbar and thoracic vertebrae. In the bones, you will notice dysostosis multiplex if you have sly syndrome symptoms.

The other symptoms are retarded growth, weakness of bones, and mental condition. In some milder instances, osteoarthritis is common. Therefore, once you notice any of these symptoms; visit a doctor immediately without any delay. If you do not understand anything, ask the medical professional and clear your doubts about the signs and symptoms.

The other indications include intestinal abnormalities, skeletal system problems, valve disorders, enlarged spleen and liver, narrow airways, breathlessness, and lung infections.

Standard treatment

When it comes to treatment options, the usual methods include surgical rectification of hernias, bones, cardiovascular complications, and ocular abnormalities. As far as the life expectancy of people plagued with the disease is concerned, especially MPS VII, it depends on the symptom severity. A few affected patients fail to survive babyhood while some may live into their adulthood or adolescence. The main causes of death are the obstruction of airway and heart ailments, especially in MPS VII patients.

Know about the approved medication

Did you know that Mepsevii is an approved medication for people plagued with sly syndrome? The drug helps in replacing the missing β-glucuronidase and thus preventing the accumulation of noxious materials in the human cells. When it comes to the safety and efficiency of patients affected with MPS VII, the established age range is between 5 and 25 years. The duration of sly syndrome treatment is up to 164 weeks, involving the intake of medication. The dosage is usually up to four mg/kg once every two weeks.


If affected, notice the symptoms and consult your doctor immediately. Take medicines on time. Stay healthy.

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