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Journal watch - 21/02/13

Bariatric surgery and the kidney—much benefit, but also potential harm
This study outlines the risks, as well as the benefits, to the kidney following bariatric surgery. It names hyperoxaluria as the primary risk, which can eventually lead to renal failure. (Full text)

Gastrointestinal bleeding complication of gastric fistula after sleeve gastrectomy: consider pseudoaneurysms.
As many as 5% of patients can develop a gastric fistula after longitudinal sleeve gastrectomy. This paper found that four patients who presented at a centre with gastric fistula had gastrointestinal bleeding; three out of the four also had pseudonaeurysms. The authors encourage surgeons to look for this complication and endorses the use of selective arterial embolisation where possible. (Full text)

Mouse strain-dependent variation in obesity and glucose homeostasis in response to high-fat feeding.
Researchers use several genetic strains of mice to research their metabolic reaction to high-fat diets. However, there are differences between these strains: while this paper says that most of them react to a high-fat diet as one would expect, some differences remain, and the strain of mouse used in research should be considered before a study commences.

Association of abdominal obesity with lumbar disc degeneration - a magnetic resonance imaging study.
Using MRI scans to judge lumbar disc degeneration in 558 individuals, this study finds that abdominal obesity is associated with the condition in males; however, no significant association was found among women. (Full text)

Intragastric balloon significantly improves nonalcoholic fatty liver disease activity score in obese patients with nonalcoholic steatohepatitis: a pilot study.
This small study found that inserting an intragastric balloon improved the nonalcoholic fatty liver disease activity score in a group of obese patients, although it says that a larger study would be needed to prove that the effect is clinically meaningful. (Full text)