Articles: cations.
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The bile salt-activated transcription factor farnesoid X receptor (FXR) is a key mediator of proliferative bile salt signalling, which is assumed to play a role in the early phase of compensatory liver growth. The aim of this study was to evaluate the effect of a potent FXR agonist (obeticholic acid, OCA) on liver growth following portal vein embolization (PVE). ⋯ OCA accelerated liver regeneration after PVE in a rabbit model. OCA treatment might increase the efficacy of PVE and, thereby, resectability. Surgical relevance Liver failure is the most feared complication after liver surgery, with no effective treatment options. Liver regeneration is essential to avoid liver failure, and recently bile acid signalling was implicated in the initiation of liver regeneration through the nuclear bile acid receptor farnesoid X receptor (FXR). In this study, the potent FXR agonist obeticholic acid accelerated liver regeneration following portal vein embolization in a rabbit model, in terms of liver volume, liver function and proliferation. Obeticholic acid treatment could enhance the efficacy of portal vein embolization, thereby increasing resectability, and could reduce the interval to surgery. In addition, obeticholic acid might have a place in the prevention of liver failure after liver surgery.
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The nomenclature adopted for endoscopic medial maxillectomies (EMMs) is exceedingly heterogeneous. The aim of this study was to objectively measure surgical exposure in a preclinical anatomic setting to validate a classification for modular EMMs. ⋯ This modular classification of EMMs, based on quantitative analysis in a preclinical setting, should allow for better personalized preoperative surgical planning and provides standardization of nomenclature.
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Randomized Controlled Trial Multicenter Study Comparative Study
To Drain or Not to Drain Infraperitoneal Anastomosis After Rectal Excision for Cancer: The GRECCAR 5 Randomized Trial.
To assess the effect of pelvic drainage after rectal surgery for cancer. ⋯ This randomized trial suggests that the use of a pelvic drain after rectal excision for rectal cancer did not confer any benefit to the patient.
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Multicenter Study
Safety and efficacy of natalizumab in patients with acute ischaemic stroke (ACTION): a randomised, placebo-controlled, double-blind phase 2 trial.
In animal models of acute ischaemic stroke, blocking of the leukocyte-endothelium adhesion by antagonism of α4 integrin reduces infarct volumes and improves outcomes. We assessed the effect of one dose of natalizumab, an antibody against the leukocyte adhesion molecule α4 integrin, in patients with acute ischaemic stroke. ⋯ Biogen.