Presentation
The investigators will expand the genetic cohort to include any individual with a variant in an hnRNP gene presenting with neurodevelopmental abnormalities. [clinicaltrials.gov]
Angela Lindig will present to us: When It's Not Rett Syndrome After All Topics will be Amber's story, overlapping symptoms, distinguishing symptoms that are not common in Rett, understanding current genetic services that may be available for those who [nwrsa.wildapricot.org]
While all of the hnRNPs are present in the nucleus some seem to Shuttle between the nucleus and the cytoplasm. In hnRNP proteins have distinct nucleic acid binding properties of the acid. [amp.blog.shops-net.com]
Nevertheless, 38% of the families (22/58) presented variants in autosomal genes. [frontiersin.org]
The presentation differs for each syndrome, with most features arising from developmental, functional, or structural anomalies of various organs. [amboss.com]
Entire Body System
- Arachnodactyly
(W.c) Dorsal view of arachnodactyly in participant 16 at 17 years. (W.d) Curvature of the fifth finger toward the adjacent fourth finger (clinodactyly) in participant 11 at 12 years. [ng.neurology.org]
- Failure to Thrive in Infancy
Although most participants were born without any specific findings, caregivers had early concerns usually before 12 months of age, such as poor feeding with failure to thrive in infancy. [ng.neurology.org]
Gastrointestinal
- Abdominal Bloating
bloating (3%), and severe abdominal pain (3%). [ng.neurology.org]
- Severe Abdominal Pain
[…] bloating (3%), and severe abdominal pain (3%). [ng.neurology.org]
- Abdominal Pain
[…] bloating (3%), and severe abdominal pain (3%). [ng.neurology.org]
Musculoskeletal
- Thumb Hypoplasia
(W.a) Dorsal view of thumb hypoplasia in participant 5 at 3 years. (W.b) Palmar view of thumb hypoplasia in participant 20 at 5 years. (W.c) Dorsal view of arachnodactyly in participant 16 at 17 years. [ng.neurology.org]
- Lordosis
Orthopedic Issues Seventy-five percent have an orthopedic issue, including scoliosis (33%), hip dysplasia (21%), kyphosis (4%), lordosis (4%), arthritis (4%), and missing spinous process (5%). [ng.neurology.org]
- Arthritis
Orthopedic Issues Seventy-five percent have an orthopedic issue, including scoliosis (33%), hip dysplasia (21%), kyphosis (4%), lordosis (4%), arthritis (4%), and missing spinous process (5%). [ng.neurology.org]
Psychiatrical
- Distractibility
Only 15% had a clinical diagnosis of attention deficit hyperactivity disorder (ADHD), but many caregivers reported concerns with attention (33%), distractibility (24%), and hyperactivity (14%). [ng.neurology.org]
Neurologic
- Febrile Seizures
Seizures have been reported as early as 3 years and as late as 34 years of age; however, 23% had reported seizures in the setting of a fever so it is unclear whether some of these are benign febrile seizures. [ng.neurology.org]
- Akathisia
[…] include hypotonia (97%), difficulty with coordination (70%), balance (70%), gait (48%), whole-body apraxia (motor planning difficulties) (52%), muscle rigidity/spasticity (33%), tics (15%), dizziness (12%), tremor (9%), headaches (9%), dystonia (6%), and akathisia [ng.neurology.org]
- Generalized Tonic-Clonic Seizure
Clinical seizure semiologies were varied, including febrile (23%), staring (69%), tonic (38%), tonic-clonic (43%), spasms (23%), myoclonic (15%), and clonic (15%). [ng.neurology.org]
- Stroke
The oldest participant had the seizure preceding a stroke. Altogether, 60% of participants have either clinical seizures or seizure activity on EEG. [ng.neurology.org]
Treatment
However, even with these advances, 95% of rare diseases have no treatment options. [pharmacytimes.com]
Treatment is usually symptomatic. Fragile X syndrome Definition: an X-linked dominant disease caused by a CGG trinucleotide repeat expansion in the FMR1 gene (fragile X mental retardation 1 gene) during oogenesis. [amboss.com]
Despite the prevalence of food allergy, very limited progress in treatment has been made over the past 40 years. [faberlawgroup.com]
Treatment is symptomatic and supportive. MalaCards based summary : Bain Type of X-Linked Syndromic Intellectual Disability, is also known as hnrnph2 deficiency. [malacards.org]
In this new age of technology and artificial intelligence, we are on the cusp of really understanding how to reach these elusive diagnoses, and more importantly how to develop treatments to lift this heavy burden. [fdna.com]
Prognosis
Supportive management, including: Placement of a feeding tube Consulting specialists to treat individual problems (e.g., audiologists, ophthalmologists, orthopedists) Prognosis: death within one year of birth Pierre Robin sequence (Pierre Robin syndrome [amboss.com]
Therefore, the study of the relationship between genotype and phenotype, and the variant gene function is important for genetic counseling, diagnosis and prognosis. [atm.amegroups.com]
Etiology
Etiology: The resulting condition depends on the affected gene copy. [amboss.com]
GLA variation p.E66Q identified as the genetic etiology of Fabry disease using exome sequencing. Gene 2016;575:363-7. [Crossref] [PubMed] Biegstraaten M, Arngrimsson R, Barbey F, et al. [atm.amegroups.com]
As ID is a heterogeneous disorder associated with many highly penetrant genes, the evidence of multiple different genetic etiologies within a family is perhaps unsurprising. [frontiersin.org]
Epidemiology
This leads to its hypermethylation, which silences the gene and renders it unable to express its physiological gene product. [1][2] Epidemiology Second most common genetic cause of intellectual disability (after trisomy 21) Most common inherited cause [amboss.com]
Pathophysiology
Assessing the functional consequences of each these de novo variants will be important to better understand the pathophysiology and identify possible therapeutic interventions for these disorders. [ng.neurology.org]
Prevention
Even with such a small group of people, we are already learning about some of the additional health concerns that others have experienced that we can work to prevent or ameliorate. [ipulidaho.org]
Rh Isoimmunization Rh isoimmunization is a potentially preventable condition that occasionally is associated with significant perinatal morbidity or mortality. Discover the latest research on Rh Isoimmunization here. [meta.org]
We’ve gained knowledge that we didn’t have before which will allow us to take preventative measures we didn’t even know we needed to take previously. [walllillies.com]