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What is the history of Wiedemann-Steiner Syndrome?

When was Wiedemann-Steiner Syndrome discovered? What is the story of this discovery? Was it coincidence or not?

History of Wiedemann-Steiner Syndrome

Wiedemann-Steiner Syndrome: A Rare Genetic Disorder


Wiedemann-Steiner Syndrome (WSS) is a rare genetic disorder that was first described in medical literature in 1989 by German geneticist Dr. Hans-Rudolf Wiedemann and Austrian pediatrician Dr. Gerd Steiner. This syndrome is characterized by a distinct set of physical and developmental features, making it a unique condition that affects individuals worldwide.


Discovery and Early Cases


The first documented cases of Wiedemann-Steiner Syndrome were reported in the late 1980s. Dr. Wiedemann and Dr. Steiner independently identified and studied several patients who exhibited similar clinical features, leading them to recognize a pattern and establish the syndrome as a distinct entity.


Clinical Features


Wiedemann-Steiner Syndrome is primarily characterized by a combination of intellectual disability, distinctive facial features, and musculoskeletal abnormalities. Individuals with WSS often have developmental delays, ranging from mild to severe, affecting their cognitive and motor skills. The facial features associated with WSS include a broad nasal bridge, thick eyebrows, long eyelashes, and a wide mouth.


Genetic Basis


Wiedemann-Steiner Syndrome is caused by mutations in the KMT2A gene, also known as the MLL gene. This gene provides instructions for producing a protein that plays a crucial role in regulating gene expression during development. Mutations in the KMT2A gene disrupt the normal functioning of this protein, leading to the characteristic features of WSS.


Inheritance Pattern


Wiedemann-Steiner Syndrome is typically inherited in an autosomal dominant manner, which means that a mutation in one copy of the KMT2A gene is sufficient to cause the disorder. In some cases, the syndrome may occur sporadically, resulting from a de novo mutation that arises in the affected individual and is not inherited from their parents.


Prevalence and Diagnosis


Due to its rarity, the exact prevalence of Wiedemann-Steiner Syndrome is unknown. However, it is estimated to affect a small number of individuals worldwide. The diagnosis of WSS is primarily based on clinical evaluation, including the presence of characteristic physical features and developmental delays. Genetic testing can confirm the diagnosis by identifying mutations in the KMT2A gene.


Management and Treatment


As Wiedemann-Steiner Syndrome affects multiple body systems, a multidisciplinary approach to management is essential. Early intervention programs, including physical and occupational therapy, speech therapy, and educational support, can help individuals with WSS reach their full potential. Regular medical follow-ups are necessary to monitor and address any associated health issues.


Research and Future Perspectives


Since its initial discovery, ongoing research efforts have aimed to further understand the underlying mechanisms of Wiedemann-Steiner Syndrome. Scientists are investigating the specific functions of the KMT2A gene and its protein product to gain insights into the developmental processes affected by its mutations. This knowledge may contribute to the development of targeted therapies or interventions in the future.


Conclusion


Wiedemann-Steiner Syndrome is a rare genetic disorder characterized by intellectual disability, distinctive facial features, and musculoskeletal abnormalities. The discovery of this syndrome by Dr. Wiedemann and Dr. Steiner has paved the way for further research and understanding of its genetic basis. Ongoing efforts in the scientific community aim to improve the diagnosis, management, and potential treatment options for individuals affected by WSS.


Diseasemaps
2 answers
The syndrome was originally described in 1989 by Hans-Rudolf Wiedemann. The genetic basis for the syndrome was identified by Dr. Wendy D. Jones in 2012.

Posted Jan 16, 2018 by anonymous 3980

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Our daughter was diagnosed (I think 2014) aged 8. We knew Evie had some sort of syndrome when she was born in 2006. Initially the geneticists thought it was Cornelia de lange syndrome then she got the diagnosis a few years ago. 
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