Publications by authors named "Steven K Brennan"

Article Synopsis
  • Patients with telomere biology disorders (TBD) commonly experience severe liver diseases, and while liver transplantation (LT) is debated for these cases, this study aimed to evaluate patient outcomes and management strategies related to TBD-associated liver disease.
  • A total of 83 patients were analyzed, with 40 experiencing advanced liver disease; among them, 20 underwent LT, and notable factors like pulmonary issues and elevated bilirubin levels were linked to the advanced disease group.
  • Results showed that LT recipients had a 73% one-year survival rate and improved respiratory conditions in over half of the patients post-transplant, suggesting that a TBD diagnosis should not prevent consideration for LT.
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Motile cilia have essential cellular functions in development, reproduction, and homeostasis. Genetic causes for motile ciliopathies have been identified, but the consequences on cellular functions beyond impaired motility remain unknown. Variants in and cause severe disease not explained by loss of motility.

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Objective: Identify stakeholders' tracheostomy decision-making information priorities in the Neonatal Intensive Care Unit (NICU).

Study Design: English-speaking caregivers and clinicians who participated in NICU tracheostomy discussions between January 2017 and December 2021 were eligible. They reviewed a pediatric tracheostomy communication guide prior to meeting.

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Article Synopsis
  • DNAAF5 is a factor linked to primary ciliary dyskinesia (PCD), a genetic condition affecting motile cilia, and its heterozygosity's effects on cilia function were investigated using CRISPR-Cas9 in mice.
  • Mice with different Dnaaf5 gene variants exhibited significant differences in disease severity; those with one missense mutation had better survival and partially functioning cilia compared to those with a null allele or a combination of both.
  • Proteomic and transcriptional analyses indicated variability in protein expression and functionality across different tissues, emphasizing the complexity of genetic influences on cilia assembly and related health outcomes in PCD.
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Primary ciliary dyskinesia (PCD) is a rare inherited condition affecting motile cilia and leading to organ laterality defects, recurrent sino-pulmonary infections, bronchiectasis, and severe lung disease. Research over the past twenty years has revealed variability in clinical presentations, ranging from mild to more severe phenotypes. Genotype and phenotype relationships have emerged.

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Background: Primary ciliary dyskinesia (PCD) is a rare genetic disease arising from motile ciliary dysfunction and associated with recurrent and chronic upper and lower respiratory tract infections. Pediatric otolaryngologists may see these patients prior to the development of lung disease. Features of PCD may overlap with other suppurative respiratory diseases, creating diagnostic challenges.

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