Key points from article :
Study focuses on gut microbiome in centenarians compared to younger individuals
Demographically limited sample from Guangxi, China; 297 people >100 years, 301 people 90-99 years, 386 people 66-85 years, 277 people 45-65 years, 314 people 20-44 years
Enterotypes classified into four groups: Bacteroides, Escherichia-Shigella, Prevotella, and Blautia
Bacteroides enterotype more prevalent in younger and oldest age group; trend reverses in middle-aged groups
Presence of Bacteroides enterotype not directly linked to health status in centenarians
No sex-based differences found in microbiome sampling; differences in BMI not responsible for aging-related changes
Four pathogenic bacterial groups more likely in third-oldest group, while probiotic groups more likely in younger people and centenarians
Greater species diversity in gut microbiota linked to stability in centenarians
Researchers suggest centenarians maintain youthful enterotypes through dietary habits and personal characteristics, impacting aging and longevity
Research by AIage Life Science Corporation and Chinese Academy of Agricultural Sciences published in Nature.