Publications by authors named "David Heaner"

Cadaver labs are one of the staples of medical education in the United States, yet it is relatively uncommon for nursing students to have the opportunity to engage in the direct observation, hands-on learning, and the efficiency of the immersive environment in a cadaver-based anatomy lab. The primary aim of this project was to determine if medical students could create and deliver a cadaver lab workshop for nursing students that would provide educational benefits to both groups of students at a neutral cost. The purpose of this activity was to evaluate how a cadaver lab for nursing students could increase understanding of clinically-relevant anatomy, disease, and indwelling medical devices, while enhancing overall clinical problem-solving skills.

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OBJECTIVEThe majority of children with myelomeningocele undergo implantation of CSF shunts. The efficacy of adding surveillance imaging to clinical evaluation during routine follow-up as a means to minimize the hazard associated with future shunt failure has not been thoroughly studied.METHODSA total of 300 spina bifida clinic visits during the calendar years between 2012 and 2016 were selected for this study (defined as the index clinic visit).

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OBJECTIVE It has been suggested that the treatment of infant hydrocephalus results in different craniometric changes depending upon whether ventriculoperitoneal shunt (VPS) placement or endoscopic third ventriculostomy with choroid plexus cauterization (ETV/CPC) is performed. Without an objective and quantitative description of expected changes to the infant cranium and ventricles following ETV/CPC, asserting successful treatment of hydrocephalus is difficult. By comparing infants successfully treated via ETV/CPC or VPS surgery, the authors of this study aimed to define the expected postoperative cranial and ventricular alterations at the time of clinical follow-up.

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OBJECTIVE Past studies have suggested correlations between abusive head trauma and concurrent cervical spine (c-spine) injury. Accordingly, c-spine MRI (cMRI) has been increasingly used in radiographic assessments. This study aimed to determine trends in cMRI use and treatment, and outcomes related to c-spine injury in children with nonaccidental trauma (NAT).

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Nitroaromatic compounds are typically toxic and resistant to degradation. Bradyrhizobium species strain JS329 metabolizes 5-nitroanthranilic acid (5NAA), which is a molecule secreted by Streptomyces scabies, the plant pathogen responsible for potato scab. The first biodegradation enzyme is 5NAA-aminohydrolase (5NAA-A), a metalloprotease family member that converts 5NAA to 5-nitrosalicylic acid.

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Crystallization chaperones are attracting increasing interest as a route to crystal growth and structure elucidation of difficult targets such as membrane proteins. While strategies to date have typically employed protein-specific chaperones, a peptide-specific chaperone to crystallize multiple cognate peptide epitope-containing client proteins is envisioned. This would eliminate the target-specific chaperone-production step and streamline the co-crystallization process.

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Article Synopsis
  • Protein crystallization relies on intermolecular interactions that organize proteins into a three-dimensional structure.
  • The study focused on engineering single chain antibody fragments (scFvs) that can enhance the crystallization of challenging proteins, acting as chaperones.
  • Despite maintaining certain framework residues from the original scFv, the crystal lattices formed by modified scFvs varied, highlighting the complex factors involved in crystal formation and the presence of adaptable surface features in scFvs that aid in crystallization.
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