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Open research questions in Genetic Syndromes and Imprinting

116 gap statements mined from Genetic Syndromes and Imprinting papers in our 4.5M-paper local library, which holds 526 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The interaction between maternal and paternal genomic contributions is not fully understood. The consequences of life without a maternal genomic contribution in mammalian development are not well studied.

    Engineered bipaternal mice reveal the consequences of life without a maternal genomic contribution · 2026 · DOI

  • There is a need to assess the quality of life and psychological well-being in Italian adult patients with PWS. Prior studies have shown substantial impairment in both physical and mental health among patients affected by PWS.

    Assessment of Quality of Life and Psychological Well-Being in Italian Adult Subjects with Prader–Willi Syndrome Using the Health Survey Short Form and the Psychological General Well-Being Index Questionnaires · 2025 · DOI

  • Epilepsy and abnormal electroencephalographic (EEG) rhythms are key features, but their mechanisms and treatment remain unclear.

    Region‐dependent differences in tonic inhibition underlie epileptic features in Angelman syndrome model mice · 2026 · DOI

  • How mammalian embryos adapt to these environmental constraints, and whether such conditions actively shape developmental programmes, remains incompletely understood.

    In preprints: re-examining the role of oxygen in mammalian embryogenesis · 2026 · DOI

  • Most previous studies focus on infants, where fetal blood chimerism may influence epigenetic profiles, but data in adolescents remain scarce.

    Concordant epigenetic and discordant clinical PHP1B/iPPSD3 manifestations in two monozygotic adolescent twins · 2026 · DOI

  • Although defects in the OCT4/SOX2 binding sites (OBS) on the maternal allele have been reported in patients with hypermethylated H19-DMR, the precise methylation patterns in patients with OBS abnormalities remain elusive.

    Methylation profile characteristics in the H19/IGF2:IG-DMR revealed by long-read sequencing analysis in patients with Beckwith-Wiedemann syndrome having defects in the OCT4/SOX2 binding site · 2026 · DOI

  • Tongue reduction surgery (TRS) is often recommended to address functional concerns, but its effects on patient-reported speech outcomes remain unclear.

    Patient-Reported Speech Outcomes in Patients with Beckwith-Wiedemann Syndrome · 2026 · DOI

  • Prader-Willi syndrome (PWS) and Schaaf-Yang syndrome (SYS) share overlapping phenotypic features, but potential cardiac involvement in both conditions remains poorly understood.

    Magel2 deficiency promotes cardiac remodeling and increases arrhythmogenic susceptibility in a mouse model relevant to Prader–Willi and Schaaf–Yang syndromes · 2026 · DOI

  • Prader-Willi syndrome (PWS) is a neurodevelopmental disorder characterized by hypothalamic dysfunction, developmental delay, hyperphagia, and cognitive impairment, yet the cellular mechanisms underlying circuit abnormalities remain unclear.

    Magel2 deficiency drives microglial synaptic engulfment and alters neuron-microglia interactions in Prader-Willi syndrome · 2026 · DOI

  • The Dlk1-Dio3 imprinted domain is essential for mammalian development, yet its role in coordinating multi-organ embryogenesis is not fully understood.

    Allele-specific CRISPR perturbation of the imprinted Dlk1–Dio3 domain reveals regulation of BMP–NOTCH–VEGF signaling in embryonic organogenesis · 2026 · DOI

  • While epigenetic alterations are well-characterized in SRS and BWS, copy number variants (CNVs) rearrangements remain incompletely understood, particularly in terms of how duplication size and parental origin shape the phenotypic spectrum.

    Phenotypic spectrum of 11p15.5 duplications: parent-of-origin and copy number variant size shape outcomes from Silver-Russell to Beckwith-Wiedemann syndromes · 2026 · DOI

  • While maternal-effect variants in proteins of the oocyte subcortical maternal complex (SCMC) have been linked to MLID, the underlying mechanisms and health impact of this epigenetic disturbance remain unclear.

    Highly variable genomic methylation in the Beckwith-Wiedemann syndrome associated with multi-locus imprinting disturbances · 2025 · DOI

  • Future research should investigate whether and how these epimutations impact the health of affected individuals, particularly in adulthood.

    Highly variable genomic methylation in the Beckwith-Wiedemann syndrome associated with multi-locus imprinting disturbances · 2025 · DOI

  • However, no studies have conducted a multi-locus methylation analysis for the ID-responsible DMRs other than the DMRs in 11p15.

    Multi-locus methylation analyses reveal GNAS methylation defects in three patients with the Beckwith–Wiedemann syndrome phenotype and no molecular defects in the 11p15.5 imprinted region · 2025 · DOI

  • Tongue reduction surgery can improve symptomatic macroglossia in Beckwith-Wiedemann syndrome (BWS), but there is no consensus on the optimal tongue reduction surgical technique.

    A Comparison of Surgical Techniques for Macroglossia in Beckwith-Wiedemann Syndrome · 2025 · DOI

  • Nevertheless, a conclusive mechanism of action for SNORD116 remains to be established.

    Footprints in the Sno: investigating the cellular and molecular mechanisms of SNORD116 · 2025 · DOI

  • There is currently no consensus on the definition of MLID, clinical indications prompting testing, molecular procedures and methods for epigenetic and genetic diagnosis, recommendations for laboratory reporting, considerations for counselling, and implications for prognosis and management.

    Multi-locus imprinting disturbance (MLID): interim joint statement for clinical and molecular diagnosis · 2024 · DOI

  • In contrast to the E3 ubiquitin ligase encoding SIAH1 and SIAH2, little is known on the regulation and function of SIAH3 in tumorigenesis.

    SIAH3 is frequently epigenetically silenced in cancer and regulates mitochondrial metabolism · 2024 · DOI

  • The genetic characteristics of most sporadic PHP1B remains unclear, but GNAS imprinting abnormalities and hypomethylation at the A/B DMRs have been reported.

    #191 An unusual cause of hypocalcemia in a young patient · 2024 · DOI

  • PWS T1 individuals display more pronounced physiological and cognitive abnormalities than PWS T2, yet the exact neuropathological mechanisms behind these differences remain unclear.

    Microglial phagolysosome dysfunction and altered neural communication amplify phenotypic severity in Prader-Willi Syndrome with larger deletion · 2024 · DOI

  • In this context, endogenous retroelements may represent sensitive transcriptional readouts of epigenomic instability in imprinting disorders, warranting further investigation through functional and genome-wide epigenomic approaches.

    Human Endogenous Retroviruses and Epigenetic Regulators Are Dysregulated in Beckwith–Wiedemann Syndrome · 2026 · DOI

  • To date, male patients with GWpUPD and a complete 46,XY karyotype, specifically involving heterodisomy, have not been described.

    Beckwith–Wiedemann spectrum exhibiting a 46,XY karyotype caused by genome-wide paternal uniparental heterodisomy: a case report · 2026 · DOI

  • Methods Using clinical practice and a review of the existing limited literature, we examined the complexity of the disease and the importance of psychiatric, psychotherapeutic, and psychological interventions in the treatment of children and adolescents with rare diseases such as BWS.

    A multidisciplinary approach to the treatment of children and adolescents with Beckwith-Wiedemann syndrome · 2024 · DOI

  • Investigate how maternal and paternal genomic contributions interact to shape mammalian development and physiology - Examine the effects of paternal-only development on other tissues…

    Engineered bipaternal mice reveal the consequences of life without a maternal genomic contribution · 2026 · DOI

  • These findings contribute to our understanding of genomic imprinting regulation in human development and highlight potential genomic regions for further investigation of imprinting-related disorders.

    Analysis of Human Uniparental Embryonic Stem Cells Reveals New Putative Imprinted Loci · 2025 · DOI

Most-cited papers in Genetic Syndromes and Imprinting

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Open questions raised by papers listed on this page include: (1) The interaction between maternal and paternal genomic contributions is not fully understood (“Engineered bipaternal mice reveal the consequences of life without a maternal…”, 2026); (2) Epilepsy and abnormal electroencephalographic (EEG) rhythms are key features, but their mechanisms and treatment remain unclear (“Region‐dependent differences in tonic inhibition underlie epileptic features in…”, 2026); (3) How mammalian embryos adapt to these environmental constraints, and whether such conditions actively shape developmental programmes, remains incompletely understood (“In preprints: re-examining the role of oxygen in mammalian embryogenesis”, 2026); (4) Most previous studies focus on infants, where fetal blood chimerism may influence epigenetic profiles, but data in adolescents remain scarce (“Concordant epigenetic and discordant clinical PHP1B/iPPSD3 manifestations in…”, 2026); (5) Although defects in the OCT4/SOX2 binding sites (OBS) on the maternal allele have been reported in patients with hypermethylated H19-DMR, the precise methylation patterns in patients with OBS abnormalities remain elusive (“Methylation profile characteristics in the H19/IGF2:IG-DMR revealed by…”, 2026). 116 gap statements have been mined from Genetic Syndromes and Imprinting papers in our 4.5M-paper local library, which holds 526 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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