Two research papers were published regarding the effectiveness of PGX
The Journal of Human Nutrition and Dietetics
Effects of a 3-month supplementation with a novel soluble highly viscous polysaccharide on anthropometry and blood lipids in nondieting overweight or obese adults
M. Lyon, S. Wood, X. Pelletier, Y. Donazzolo, R. Gahler & F. Bellisle
Background: High viscosity fibre is known to exert many beneficial effects on appetite and metabolism. It could potentially help in weight management, in dieting or nondieting individuals. The present study investigated the effects of the daily intake of a novel high viscosity polysaccharide (HVP) over 3 months in nondieting obese or overweight men and women.
Methods: The study comprised a double-blind, randomised controlled clinical trial. Participants ingested 5–15 g per day of either HVP (n = 29, experimental group) or inulin (n = 30, control group) for 15 weeks. Changes in anthropometry (weight, waist and hip circumferences), blood lipids and glucose tolerance were studied from the beginning to the end of administration. Compliance and tolerance were examined.
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The soluble fiber complex PolyGlycopleX lowers serum triglycerides and reduces hepatic steatosis in high-sucrose-fed rats
Raylene A. Reimer, Gary J. Grover, Lee Koetzner, Roland J. Gahler, Michael R. Lyon, Simon Wood
Viscous soluble fibers have been shown to reduce risk factors associated with type 2 diabetes and cardiovascular disease. The novel functional fiber, PolyGlycopleX (PGX) (InovoBiologic Inc, Calgary, Alberta, Canada) displays greater viscosity than other currently identified soluble fibers. The objective of this study was to determine if PGX lowers serum and hepatic triglycerides (TGs) in a high-sucrose-fed rat model. In this rodent model, feeding a high-sucrose diet consistently increases serum TGs. We hypothesized that consumption of PGX would attenuate hypertriglyceridemia and reduce hepatic steatosis compared with cellulose in rats fed a high-sucrose background diet. Male Sprague-Dawley rats were fed diets containing 65% sucrose and supplemented with either 5% cellulose (control) or 5% PGX (wt/wt) for 43 weeks. At study termination, serum insulin and TGs, hepatic steatosis, and hepatocellular injury were assessed. Body weight increased over time in both groups, but weight gain was attenuated in rats fed PGX vs cellulose in weeks 2 through 22 (P b .05). Serum TGs did not differ from baseline for the first half of the study but consistently increased in the cellulose group thereafter. PolyGlycopleX significantly reduced serum TG to near-baseline levels. At study termination, rats fed PGX had significantly lower hepatic steatosis scores (measured by Sudan black staining) compared with rats fed cellulose. Hepatocellular injury scores did not differ between the groups. In conclusion, PGX reduced serum TG and lipid accumulation in the liver of sucrose-fed rats. Further examination of its potential as a fiber supplement aimed at lessening the burden of hepatic steatosis is warranted.
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