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Area of Science:

• Biochemistry
• Gerontology
• Pharmacology

Background:

• Glycosaminoglycans (GAGs) are known for their role in mitigating age-related tissue degradation.
• The potential of insect-derived GAGs for anti-aging applications remains largely unexplored.

Purpose of the Study:

• To evaluate the anti-aging efficacy of a newly prepared GAG from bumblebee queen (BTQG).
• To compare BTQG's effects with cricket GAG (GbG) and glucosamine sulfate (GS) in aged rats.

Main Methods:

• Intraperitoneal administration of BTQG (10 mg/kg) to 14-month-old aged rats for one month.
• Biochemical analysis of serum markers (FFA, ALP, GPT, creatinine, BUN) and gene expression profiling of liver tissue via cDNA microarray.

Main Results:

• BTQG significantly reduced serum levels of free fatty acid, ALP, GPT, creatinine, and BUN, indicating hepato-renal protection and anti-lipidemic activity.
• Gene expression analysis revealed upregulation of 36 genes (e.g., Scg2, ROS DNA repair) and downregulation of 417 genes (e.g., vimentin, moesin) in BTQG-treated rats.

Conclusions:

• Insect GAG derived from bumblebee queen exhibits significant anti-aging properties.
• BTQG ameliorates aging effects on circulation, liver, and kidney function, potentially decelerating the aging process.