High blood sugar affects cognitive function via lactate, Pg10

Key Highlights:

• Researchers discovered that excess sugar leads to modification on the Creb3 protein, which activates a gene that increases lactate production in the hippocampus.
• High levels of lactate can kill brain cells, resulting in cognitive impairment.
• A study confirmed that high blood lactate is a risk factor for memory loss in individuals with diabetes.
• A peptide was developed that lowered lactate levels and preserved cognitive function in diabetic mice.

Detailed Insights:

• The hippocampus, the brain's memory center, is particularly vulnerable to the effects of high lactate levels caused by excess sugar.
• The modification of the Creb3 protein is a key mechanism through which high blood sugar impairs cognitive function.
• The developed peptide offers a potential therapeutic strategy for preventing cognitive decline in individuals with diabetes by reducing lactate levels.
• Further research is needed to determine the safety and efficacy of this peptide in humans and to explore other potential interventions for managing lactate levels in the brain.

Scientific/Technical Concepts Involved:

• Creb3 Protein: A protein involved in cellular stress response and regulation of gene expression.
• Lactate: A metabolic product of glucose breakdown, which can accumulate to toxic levels.
• Hippocampus: A region of the brain crucial for memory formation and spatial navigation.