Antibiotic Prophylaxis and Spinal Infection After Gunshot Wounds to the Spine: A Retrospective Study.

Introduction: Spinal and paraspinal infections (SPIs) are a potential complication following traumatic spinal column injury, and we sought to determine the association of antibiotic prophylaxis on SPI development following a spinal gunshot wound (GSW).

Methods: A single-center retrospective cohort study was performed on adults who sustained a GSW to the spinal column over 11 y. Patients were excluded if they died within 24 h or had a mechanism other than GSW.

Annual cost-savings with the implementation of estrogen-receptor-only testing on Ductal Carcinoma in Situ specimens.

Background: In DCIS, ER status is an important marker. The utility of concomitant PR testing remains unclear.

Methods: A single-institution retrospective cohort study was performed with a comparative analysis of the NCDB to assess annual cost-savings with omission of routine PR testing.

Norwood Procedure-Difficulty in Weaning From Cardiopulmonary Bypass and Implications for Outcomes.

Difficulty weaning from cardiopulmonary bypass (CPB) or the need to return to CPB (collectively D-CPB) may occur after the Norwood procedure. We sought to evaluate the relationship between D-CBP and survival. This was a retrospective chart review of all patients undergoing a Norwood procedure at our institution during the interval 2005-2017.

Design considerations in coiled-coil fusion constructs for the structural determination of a problematic region of the human cardiac myosin rod.

X-ray structural determination of segments of the myosin rod has proved difficult because of the strong salt-dependent aggregation properties and repeating pattern of charges on the surface of the coiled-coil that lead to the formation of paracrystals. This problem has been resolved in part through the use of globular assembly domains that improve protein folding and prevent aggregation. The primary consideration now in designing coiled-coil fusion constructs for myosin is deciding where to truncate the coiled-coil and which amino acid residues to include from the folding domain.