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Open research questions in Genetics and Neurodevelopmental Disorders

88 unresolved questions extracted from the limitations and future-work sections of 402 Genetics and Neurodevelopmental Disorders papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • One challenge is the development of effective treatments for fragile X syndrome. Another challenge is the need to understand the underlying mechanisms of FXS and its associated EEG abnormalities. The study also faced the challenge of assessing the effects of blarcamesine on EEG biomarkers in a mouse model of FXS.

    Blarcamesine improves EEG biomarkers of cortical dysfunction in a mouse model of fragile X syndrome · 2026 · DOI

  • Further studies are needed to fully understand the effects of blarcamesine on EEG biomarkers in fragile X syndrome. Research on the optimal dosage and treatment duration of blarcamesine is required. Investigations into the mechanisms underlying blarcamesine's effects on EEG biomarkers are necessary.

    Blarcamesine improves EEG biomarkers of cortical dysfunction in a mouse model of fragile X syndrome · 2026 · DOI

  • U2OS is non-diploid and its karyotype is abnormal, - the study focused on a single experimental condition, - the link to RT advance and break formation is unclear in mid-late S-phase

    Single-cell mapping of chromosome breaks identifies multiple fragile site classes with distinct DNA replication timing landscapes · 2026 · DOI

  • investigating the link to RT advance and break formation, - analyzing other cell types to see if the findings are conserved, - exploring the mechanisms of breaks in non-CFS regions

    Single-cell mapping of chromosome breaks identifies multiple fragile site classes with distinct DNA replication timing landscapes · 2026 · DOI

  • While the MeCP2 methyl-CpG binding domain (MBD) is well-characterized, the function of the adjacent intervening domain (ID) remains largely understudied.

    MeCP2 MBD-ID module: a unified DNA/RNA binding interface disrupted in Rett syndrome · 2026 · DOI

  • Here, we address these conflicting findings by demonstrating the MBD and ID do not function in isolation but as a synergistic functional unit.

    MeCP2 MBD-ID module: a unified DNA/RNA binding interface disrupted in Rett syndrome · 2026 · DOI

  • RESULTS: variants across 45 families, identifying 25 variants that have not been previously reported.

    WWOX -Related Developmental and Epileptic Encephalopathy · 2025 · DOI

  • Further longitudinal and naturalistic studies are warranted, along with the development of structured tools to assist clinicians in optimizing pharmacological care for this vulnerable population.

    Antipsychotic medication for behaviors that challenge in individuals with intellectual disabilities: a clinically informed review · 2025 · DOI

  • These findings highlight key limitations of the current literature, including the scarcity of studies focusing specifically on ID populations, small sample sizes, the limited number of RCTs, and often controversial or inconsistent results.

    Antipsychotic medication for behaviors that challenge in individuals with intellectual disabilities: a clinically informed review · 2025 · DOI

  • Discussion and conclusion This case contributes to the limited literature on ZMYM3-related NDDs in females, highlighting potential variability in phenotypic expression due to X-inactivation and penetrance effects.

    The gender-sensitive spectrum of neurodevelopmental disorders: a case report on a ZMYM3 variant in a 19-year-old female · 2025 · DOI

  • The Zinc finger MYM-type protein 3, located on the X-chromosome, has been implicated in neurodevelopment, but its effects in females remain poorly understood due to limited research.

    The gender-sensitive spectrum of neurodevelopmental disorders: a case report on a ZMYM3 variant in a 19-year-old female · 2025 · DOI

  • Thus, the GABBR1 variant may be a modifying factor in this case, though its pathogenicity remains uncertain.

    Case Report: Diagnostic assessment, developmental trajectory and treatment approaches in a case of a complex neurodevelopmental syndrome associated with non- synonymous variants in MECP2 (p. R133C) and GABBR1 · 2025 · DOI

  • Further investigation of these phenotypes in CAKUT patients carrying ZMYM2 mutations will enhance our understanding of their phenotypes and improve strategies for early diagnosis, monitoring, and treatment.

    Genitourinary defects, anxiety and aggressive-like behavior and glucose metabolism disorders in Zmym2 mutant mice with inserted piggyBac transposon · 2025 · DOI

  • After 6-18 months of typical neurodevelopment, RTT girls undergo a poorly understood regression.

    Sex-specific single cell-level transcriptomic signatures of Rett syndrome disease progression · 2024 · DOI

  • However, little is known about the shared genetic mechanisms and causality behind such associations.

    Unraveling shared susceptibility loci and Mendelian genetic associations linking educational attainment with multiple neuropsychiatric disorders · 2024 · DOI

  • After the introduction of the Waldrop Scale, the studies conducted on MPAs in diseases with neurodevelopmental origin gave conflicting results.

    25 years into research with the Méhes Scale, a comprehensive scale of modern dysmorphology · 2024 · DOI

  • (Val837Met) variant and emphasizes the need for further research into effective therapeutic strategies for TRPM3-associated conditions.

    Case Report: Expanded delineation of phenotype of TRPM3-related neurodevelopmental disorders · 2024 · DOI

  • However, the precise mechanism by which D,L-methadone induces ER Ca2+ release remains to be defined.

    PKA inhibition is a central step in D,L-methadone-induced ER Ca2+ release and subsequent apoptosis in acute lymphoblastic leukemia · 2024 · DOI

  • There is a need for accurate and consistent reporting of RYR1 variants. There is a need for guidelines for genetic testing, interpretation, and reporting of RYR1 variants.

    EMQN Best Practice Guidelines for Genetic Testing and Reporting in RYR1-related disorders · 2026 · DOI

  • For quick reference, a summary of the major recommendations from this section, stratified by variants and clinical context is provided (box 1). Criteria for genetic testing of RYR1 Suspected clinical diagnosis of malignant hyperthermia. Patients who had features of a hypermetabolic reaction under general 4 Box 1 R.L. Robinson et al.

    EMQN Best Practice Guidelines for Genetic Testing and Reporting in RYR1-related disorders · 2026 · DOI

  • The study identifies a gap in understanding the effects of Fmr1 deletion on adult-born dentate granule cells and glial populations. The study highlights the need to investigate the impact of early-life stress on FXS-related neuropathology.

    Fmr1 Deletion and Early-Life Stress Interact to Increase Cell Proliferation and Glial Populations at the Expense of Immature Neurons in the Adult Dentate Gyrus · 2026 · DOI

  • Abstract CC2D1A is a multidomain scaffold protein implicated in transcriptional regulation and autosomal recessive non-syndromic intellectual disability (NSID), yet its molecular mechanism is still poorly understood due to a lack of structural information.

    Structural characterization of the human CC2D1A fragment associated with non-syndromic intellectual disability (NSID) · 2026 · DOI

  • Further studies are needed to investigate the role of KDM5B-mediated H3K4me3 demethylation in neurodevelopmental disorders. The development of therapeutic strategies targeting NMDAR signaling may be a potential approach for neurodevelopmental disorders associated with KDM5B deficiency.

    Autism-like phenotypes and increased NMDAR2D expression in mice with KDM5B histone lysine demethylase deficiency · 2026 · DOI

  • The role of KDM5B-mediated H3K4me3 demethylation in neurodevelopmental disorders is not well understood. The mechanisms underlying the association between KDM5B loss-of-function variants and autism spectrum disorder (ASD) are not clear.

    Autism-like phenotypes and increased NMDAR2D expression in mice with KDM5B histone lysine demethylase deficiency · 2026 · DOI

  • The relationship between FXS and cerebral aneurysms is not well understood. There is limited research on the causal link between FXS and cerebral aneurysms.

    There is no Evidence that Fragile-X Syndrome Due to Low CGG Repeat Expansions in FMR1 Manifests Phenotypically with Cerebral Aneurysms · 2026 · DOI

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88 open questions have been extracted from the limitations and future-work passages of 402 Genetics and Neurodevelopmental Disorders papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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