People living with obesity often face high blood sugar and extra weight that make daily life harder. A new analysis looked at what happens after metabolic and bariatric surgery. This type of surgery changes how the body handles food and energy. The researchers found that a specific protein in the blood, called Fetuin-A, dropped significantly after the operation. This protein level fell by a meaningful amount compared to levels before surgery. At the same time, patients saw a big drop in their body mass index and their blood sugar levels improved greatly. These changes happened across a group of 298 patients who underwent the procedure. The results suggest the surgery does more than just change weight. It also shifts the chemistry in the blood in a positive direction. However, the study could not prove exactly why these changes occurred. We simply know the protein levels went down when the surgery happened. More research is needed to understand the cause and effect relationship here.
Metabolic and bariatric surgery significantly reduces plasma Fetuin-A levels in patients with obesityMetabolic surgery lowers a blood protein linked to obesity and high sugar
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Key Takeaway
Note that metabolic and bariatric surgery reduces plasma Fetuin-A levels in patients with obesity.
This systematic review and meta-analysis evaluates the impact of metabolic and bariatric surgery (MBS) on plasma Fetuin-A expression in patients with obesity. The study included n = 298 participants and compared post-surgery levels to pre-surgery levels. No specific setting was reported for these patients.
The primary outcome showed a significant reduction in plasma Fetuin-A levels following the procedure. The standardized mean difference was -0.43 with a 95% CI of -0.73 to -0.14 and a p-value less than .05. Secondary outcomes included body mass index and glucose levels, which also demonstrated significant decreases with standardized mean differences of -1.74 and -0.94 respectively.
The authors acknowledge that causal mechanisms cannot be established from the available evidence. Adverse events, discontinuations, and tolerability were not reported in the source data. The follow-up duration was not reported. These limitations suggest that while the associations are statistically significant, the biological drivers remain unclear.
What this means for you:
Metabolic surgery lowered a blood protein and improved weight and sugar levels in patients with obesity. More on Obesity
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View Original Abstract ↓
ObjectiveTo evaluate the impact of metabolic and bariatric surgery (MBS) on plasma Fetuin-A expression, body mass index (BMI), and glucose levels in patients with obesity.MethodsA systematic literature search was performed in PubMed, Cochrane Library, Web of science, and Embase following the PRISMA guidelines. A total of 5 studies (n = 298 participants) were included, reporting pre- and post-surgery plasma Fetuin-A levels, BMI, and glucose levels. Two independent reviewers extracted data, with discrepancies resolved by a third reviewer. Pooled standardized mean differences (SMD) and 95% confidence intervals (CI) were calculated for each outcome. Heterogeneity was assessed using the I statistic.ResultsThe pooled results revealed a significant reduction in plasma Fetuin-A levels post-surgery (SMD = -0.43, 95% CI = -0.73 to -0.14, < .05, I = 60.7%). BMI also decreased significantly following MBS (SMD = -1.74, 95% CI = -2.28 to -1.19, < .05, I = 84.2%). Additionally, glucose levels showed a marked reduction post-surgery (SMD = -0.94, 95% CI = -1.12 to -0.76, < .05, I = 16.2%).ConclusionMBS is associated with significant reductions in plasma Fetuin-A levels, BMI, and glucose levels. These findings indicate that changes in Fetuin-A may accompany the metabolic improvements observed after MBS, although causal mechanisms cannot be established from the available evidence.
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