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The global rise in type 2 diabetes (T2D) and obesity necessitates innovative dietary interventions. This study investigates the effects of allulose, a rare sugar shown to reduce blood glucose, in a rat model of diet-induced obesity and T2D. Over 12 weeks, we hypothesized that allulose supplementation would improve body weight, insulin sensitivity, and glycemic control. Our results showed that allulose mitigated the adverse effects of high-fat, high-sugar diets, including reduced body weight gain and improved insulin resistance. The allulose group exhibited lower food consumption and increased levels of glucagon-like peptide-1 (GLP-1), enhancing glucose regulation and appetite control. Additionally, allulose prevented liver triglyceride accumulation and promoted mitochondrial uncoupling in adipose tissue. These findings suggest that allulose supplementation can improve metabolic health markers, making it a promising dietary component for managing obesity and T2D. Further research is needed to explore the long-term benefits and mechanisms of allulose in metabolic disease prevention and management. This study supports the potential of allulose as a safe and effective intervention for improving metabolic health in the context of dietary excess.
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http://dx.doi.org/10.3390/nu16121821 | DOI Listing |
J Agric Food Chem
September 2025
The State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
This study develops a multienzyme coimmobilization strategy on NTA-functionalized ZIF-8-coated magnetic nanoparticles (NZMNPs) for efficient d-allulose synthesis. Under optimized immobilization conditions (enzyme-to-carrier ratio: 1:50 w/w, 30 min immobilization), the system achieved an immobilization efficiency of 93.7% along with 107.
View Article and Find Full Text PDFInt J Mol Sci
August 2025
Biological Clock-Based Anti-Aging Convergence RLRC, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea.
Sarcopenia, the age-related decline in skeletal muscle mass and function, is a growing health concern in aging populations. Nutritional interventions are increasingly recognized for their therapeutic potential; however, molecular biomarkers that reflect their efficacy are limited. To identify nutrition-responsive genes relevant to sarcopenia, we performed transcriptomic profiling of gastrocnemius muscle from mature and middle-aged mice.
View Article and Find Full Text PDFJ Microbiol Biotechnol
August 2025
Department of Bio-Health Convergence, Duksung Women's University, Seoul 01369, Republic of Korea.
Directed evolution is a powerful tool in protein engineering that generates diverse variant libraries to enhance enzyme functionalities. However, the identification of desirable variants from large mutant libraries requires an efficient high-throughput screening (HTS) technique. In this study, we established a robust HTS protocol for selecting high-activity isomerase variants, specifically using L-rhamnose isomerase (L-RI) consistently; avoid switching between L-RI and L-RhI.
View Article and Find Full Text PDFBioresour Technol
December 2025
School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety,
Recently, in vitro multienzyme cascade biotransformation based on phosphorylation-isomerization-dephosphorylation has been extensively utilized in the industrial production of rare sugars. It exhibited distinct advantages in conversion and yield compared with the direct isomerization catalyzed by single isomerase, due to phosphorylation activating glycosyl molecules to reduce the energy barrier of isomerization. However, as a critical enzyme catalyzing the dephosphorylation to drive the equilibrium forward, phosphatases that satisfy the ideal catalytic model of 'one enzyme-one substrate' generally require high substrate specificity and catalytic activity.
View Article and Find Full Text PDFChem Commun (Camb)
September 2025
The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, China.
In response to the disputed dehydrogenation/hydrogenation mechanism of D-allulose 3-epimerase (DAE), this study reveals a dehydroxylation/hydroxylation mechanism O/H isotopic labeling in mass spectrometry and DFT calculations, demonstrating metal-coordinated C3-O3 bond cleavage and providing a basis for the rational modification of DAE in rare sugar biosynthesis.
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