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Kleefstra Syndrome
Kleefstra Syndrome

An information page about a rare genetic syndrome

  • About the Syndrome
    • Care Instructions 2026
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      • Kleefstra Syndrome Clinic in America
      • European center for Kleefstra in the Netherlands
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Kleefstra Syndrome
Kleefstra Syndrome

An information page about a rare genetic syndrome

Tag: KLEFS1

Research

What do families living with Kleefstra Syndrome need? A new study gives parents a voice

Katerina Tzimourta,
November 20, 2025August 21, 2026

What does it mean in practice to raise a child with Kleefstra syndrome? How does everyday life change…

Research

Greek study describes two new genetic mutations of EHMT1 and highlights the broad spectrum of Kleefstra syndrome

Katerina Tzimourta,
August 18, 2025August 20, 2026

Two children with the same diagnosis can have a very different course. In Kleefstra syndrome...

Research

Kleefstra syndrome is broader than previously thought: what the largest EHMT1 study in 209 individuals showed

Katerina Tzimourta,
September 12, 2024August 20, 2026

For many years, the classic description of Kleefstra syndrome was based primarily on individuals with relatively...

Research

Speech, language and communication in Kleefstra syndrome: what an international study of 103 individuals showed

Katerina Tzimourta,
June 11, 2024August 21, 2026

Speech delay is one of the most frequently reported characteristics in Kleefstra syndrome….

Research

Weight, growth and metabolism in Kleefstra syndrome: New study of 62 individuals

Katerina Tzimourta,
May 19, 2024August 20, 2026

Kleefstra syndrome is known primarily as a neurodevelopmental disorder. Hypotonia, developmental delay, the...

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Kleefstra Syndrome

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