Computed tomographic-guided genitofemoral nerve block: a simple anterior approach.

Chronic groin pain, often as a consequence from surgery, is a challenge from both a diagnostic and treatment standpoint. Interventional therapy is often attempted.Genitofemoral nerve block can be used for the diagnosis and treatment of groin pain.

Ex utero intrapartum treatment of fetal micrognathia.

Background: Ex utero intrapartum treatment (EXIT) procedures have emerged as a viable option for potentially life-saving procedures in fetuses with predicted airway compromise at birth. The ability to maintain maternal-fetal uteroplacental perfusion allows for prolonged procedures in a stable fetal hemodynamic environment thereby avoiding neonatal hypoxemia or sequelae of an emergent tracheostomy.

Case: A 26-year-old female presents with a 20-week ultrasound and subsequent magnetic resonance imaging demonstrating severe fetal micrognathia (jaw index below the 5th percentile), glossoptosis, polyhydramnios, absence of a gastric bubble, and suspected microtia concerning for Treacher Collins syndrome.

Isolation and characterization of thylakoid membranes from the filamentous cyanobacterium Nostoc punctiforme.

Nostoc punctiforme strain Pasteur Culture Collection (PCC) 73102, a sequenced filamentous cyanobacterium capable of nitrogen fixation, is used as a model organism for characterization of bioenergetic processes during nitrogen fixation in Nostoc. A protocol for isolating thylakoid membranes was developed to examine the biochemical and biophysical aspects of photosynthetic electron transfer. Thylakoids were isolated from filaments of N.