In elective TJA, where tolerance for biologic uncertainty is low, the most defensible approach remains risk minimization
Siegmund D, Mauri D, Peters N, Juo P, Thome M, Reichwein M, et al

biomarkers associated with nitric oxide metabolism and circulation-related signaling Key Findings (What the Study Showed) APS supplementation increased circulating L-arginine following oral intake including improvements in overall exposure (AUC) and peak concentration (Cmax) Citrulline and related metabolites were also elevated, indicating enhanced amino acid utilization Changes in biomarkers associated with nitric oxide metabolism observed including improved balance between L-arginine and naturally occurring compounds that influence its utilization Markers related to downstream nitric oxide activity were elevated, suggesting support for normal physiological signaling processes involved in circulation Benefits of AstraGin Demonstrated by This Study Based directly on the clinical outcomes, AstraGin (APS at 50 mg) was shown to: Enhance absorption and bioavailability of L-arginine (improved AUC and Cmax) Support efficient utilization of amino acids (elevated citrulline) Promote balance in pathways associated with nitric oxide metabolism Support normal circulatory signaling process markers Why This Study Matters This study provides human clinical evidence that AstraGin can enhance the absorption and utilization of key nutrients involved in important physiological pathways

Barr was then acquired by Teva Pharmaceuticals in 2008
Late endosome motility depends on lipids via the small GTPase Rab7