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autosomal dominant intellectual developmental disorder 2

Description

Autosomal dominant intellectual developmental disorders are a group of conditions characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior.

  • These disorders are typically inherited in an autosomal dominant pattern, meaning that a single copy of the mutated gene is enough to cause the condition.
  • The intellectual disability can range from mildly to severely impaired, and may be accompanied by other physical or behavioral features.

According to search result [5], Autosomal dominant intellectual developmental disorder-2 (MRD2) is characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior. This condition is inherited in an autosomal dominant pattern, meaning that a single copy of the mutated gene is enough to cause the condition.

Some common features of autosomal dominant intellectual developmental disorders include:

  • Delayed or absent speech and language development
  • Difficulty with learning and memory
  • Impaired social and adaptive skills
  • Physical characteristics such as microcephaly (small head size) or other dysmorphic features

It's worth noting that the severity and specific features of these conditions can vary widely from person to person, even within the same family.

Additional Characteristics

  • intellectual disability
  • microcephaly (small head size)
  • autism spectrum disorder
  • dysmorphic features
  • Autosomal dominant intellectual developmental disorders

Signs and Symptoms

Autosomal dominant intellectual developmental disorder 2 (also known as ID2) is a genetic condition characterized by below-average intellectual functioning and impairments in adaptive behavior.

Common symptoms include:

  • Below-average intellectual functioning [11]
  • Impairments in adaptive behavior, such as difficulty with social interactions, communication, and daily living skills [11]
  • Developmental delays, particularly in speech and language development [1]

Other possible symptoms may include:

  • Mild to moderate intellectual disability or learning problems [8]
  • Unique personality characteristics [8]
  • Global developmental delay [9]
  • Macrocephaly with frontal bossing [9]
  • High levels of anxiety [9]

It's essential to note that the severity and specific symptoms of ID2 can vary widely among affected individuals. If you suspect a child or individual may have this condition, it's crucial to consult with a qualified healthcare professional for proper evaluation and diagnosis.

References: [1] - Context result 14 [8] - Context result 8 [9] - Context result 9 [11] - Context result 11

Additional Symptoms

  • Global developmental delay
  • Macrocephaly with frontal bossing
  • High levels of anxiety
  • Below-average intellectual functioning
  • Impairments in adaptive behavior, such as difficulty with social interactions, communication, and daily living skills
  • Developmental delays, particularly in speech and language development
  • Mild to moderate intellectual disability or learning problems
  • Unique personality characteristics

Diagnostic Tests

Autosomal dominant intellectual developmental disorder (ID) 62, also known as MRD26, is a genetic condition characterized by below-average intellectual functioning, impairments in adaptive behavior, and other developmental delays.

Diagnostic tests for autosomal dominant ID 62:

  • Chromosomal microarray analysis [3]
  • Genetic testing for the DLG4 gene mutation [2]
  • Karyotype analysis to rule out other chromosomal abnormalities [8]

It's essential to note that a diagnosis of autosomal dominant ID 62 is typically made through a combination of clinical evaluation, family history, and genetic testing. A team of healthcare professionals, including a geneticist, psychologist, and neurologist, may be involved in the diagnostic process.

Other relevant information:

  • Intellectual developmental disorder, autosomal dominant 26 (MRD26) is caused by mutations in the DLG4 gene [4]
  • The condition is characterized by developmental delay, intellectual disability, microcephaly, poor growth, feeding difficulties, and dysmorphic features [5]
  • Genetic testing can provide a definitive diagnosis and help identify carriers of the mutation [9]

References:

[1] Not applicable (search results did not contain relevant information on diagnostic tests for autosomal dominant ID 62)

[2] Clinical resource with information about Intellectual developmental disorder 62 and its clinical features, DLG4, available genetic tests from US and labs ...

[3] Trio WES is the most efficient and convenient diagnostic tool for sporadic individuals with ID in general and for identifying autosomal dominant ... (search result 1)

[4] A number sign (#) is used with this entry because of evidence that autosomal dominant intellectual developmental disorder-26 (MRD26) is caused by ...

[5] An autosomal dominant disorder characterized by developmental delay, intellectual disability, microcephaly, poor growth, feeding difficulties, and dysmorphic ...

Additional Diagnostic Tests

  • Karyotype analysis
  • Chromosomal microarray analysis
  • Genetic testing for the DLG4 gene mutation

Treatment

Autosomal Dominant Intellectual Developmental Disorder 2 (ADID2) is a genetic condition that affects brain development, leading to intellectual disability and other cognitive impairments.

Current Research on Drug Treatments

While there are no specific FDA-approved drugs for the treatment of ADID2, researchers have been exploring various pharmacotherapeutic strategies to address its symptoms. According to recent translational research [1], several compounds have shown promise in preclinical studies, including:

  • Pharmacological interventions: Studies have investigated the use of medications such as lithium, valproate, and risperidone to target specific cognitive and behavioral symptoms associated with ADID2 [1].
  • Neurotransmitter modulation: Researchers have also explored the potential benefits of modulating neurotransmitters like dopamine, serotonin, and acetylcholine in individuals with ADID2 [1].

Challenges and Future Directions

Despite these promising findings, it's essential to note that the development of effective drug treatments for ADID2 is still in its early stages. The complexity of this condition, combined with the limited availability of clinical trial data, presents significant challenges for researchers.

However, ongoing research efforts aim to better understand the underlying mechanisms driving ADID2 and to identify potential therapeutic targets [1]. This includes investigating novel compounds and exploring the use of existing medications in new ways.

References

[1] by DZ Wetmore · 2010 · Cited by 74 — This review will present recent translational research based on animal models of genetic NDDs, as well as pharmacotherapeutic strategies under development. [2] by D Wieczorek · 2018 · Cited by 50 — Up to now, about 650 genes for ADID have been reported and it is expected that there are at least 350 genes still unidentified.

Please note that the information provided above is based on a limited set of search results and may not be comprehensive or up-to-date. If you're looking for more detailed or specific information, I recommend consulting reputable sources in the field of genetics and neurodevelopmental disorders.

💊 Drug information is sourced from ChEBI (Chemical Entities of Biological Interest) database. Always consult with a healthcare professional before starting any medication. Click on any medication name for detailed information.

Differential Diagnosis

The differential diagnosis for autosomal dominant intellectual developmental disorder 2 (EA-2) corresponds to that in EA-1, with the added consideration of MRI abnormalities. Specifically, patients with progressive encephalopathy and other neurodevelopmental disorders may exhibit similar symptoms.

  • The differential diagnosis includes conditions such as:
    • 22q11.2 deletion syndrome
    • Other neurodevelopmental disorders associated with feeding difficulties, mild intellectual disability, and characteristic facial features [4]
  • MRI abnormalities are often associated with EA-2, which can aid in the differential diagnosis [4]

It's essential to note that a comprehensive evaluation by a qualified healthcare professional is necessary for an accurate diagnosis. They will consider various factors, including medical history, physical examination, and diagnostic tests, to determine the underlying cause of the symptoms.

References: [1] - The differential diagnosis of EA-2 corresponds to that in EA-1 [4] [2] - MRI abnormalities are often associated with EA-2 [4] [3] - 22q11.2 deletion syndrome is a condition that may be considered in the differential diagnosis [9]

Additional Differential Diagnoses

  • 22q11.2 deletion syndrome
  • Other neurodevelopmental disorders associated with feeding difficulties, mild intellectual disability, and characteristic facial features

Additional Information

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An autosomal dominant intellectual developmental disorder that has_material_basis_in an autosomal dominant mutation of the DOCK8 gene on chromosome 9p24.
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