Publications by authors named "B G Knight"

Since antiquity, alkaloid natural products have served as medicinal ingredients that still contribute as an inspiration for the development of novel therapeutics. For the synthetic chemist, much of the importance of natural products lies in their acting as a forcing-function for the invention of new synthetic strategies and tactics for molecular assembly. With this rich history in mind, it remains an important goal for chemists to build nitrogenous structures with greater efficiency, abiding by economies of synthesis.

View Article and Find Full Text PDF

Gastric surgery may result in internal herniation of bowel, weeks to years after the initial surgery and can result in rapid onset of death if not promptly treated. We present a case in which a patient with this complication underwent surgery despite his clear refusal of surgery. The patient had a remote history of gastrectomy for malignancy.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how cardiac implantable electronic devices (CIEDs) affect the accuracy and precision of phase-contrast MRI measurements of aortic velocity in both adult and pediatric patients.
  • A total of 29 subjects (21 adults and 8 children) were scanned using various MRI techniques while simulating the presence of CIEDs to analyze image artifacts.
  • Results showed that the proximity of the CIED to the aortic valve worsens measurement accuracy, with biases and variations increasing as the distance decreases, highlighting the need to consider CIED impact during MRI readings.
View Article and Find Full Text PDF

Stereoselective alkene 1,2-difunctionalization is a privileged strategy to access three-dimensional C(sp)-rich chiral molecules from readily available "flat" carbon feedstocks. State-of-the-art approaches exploit chiral transition metal-catalysts to enable high levels of regio- and stereocontrol. However, this is often achieved at the expense of a limited alkene scope and reduced generality.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the rates and reasons for the removal of subcutaneous implantable cardioverter defibrillators (S-ICDs) among patients who've had them implanted.
  • Out of 372 patients studied over a median follow-up of 4.4 years, 5.9% required extraction, mainly due to bradycardia pacing needs, infections, and inappropriate shocks.
  • Factors such as a history of smoking and a higher body mass index were linked to an increased likelihood of S-ICD extraction, indicating the importance of careful patient selection for the device.
View Article and Find Full Text PDF