Schandl · Frontiers in endocrinology 2026 · narrative review · n=?

Hyperglycemia during the first 1000 days as a driver of metabolic programming.

Level 5 - mechanism / opinion, no new human data

Narrative review synthesizing mechanistic pathways and observational/clinical literature without systematic review methodology

PubMed 42558395 · doi:10.3389/fendo.2026.1899593 · record verified 2026-08-26

What was done

This narrative review synthesized current literature on the biological and mechanistic pathways linking maternal and early-life hyperglycemia during the first 1,000 days (conception through the end of the second postnatal year) to long-term metabolic programming, offspring cardiometabolic risk, and neurodevelopmental outcomes.

What was found

The abstract reports no quantitative metrics or numerical estimates. It qualitatively describes how hyperglycemic exposure during critical developmental windows triggers placental dysfunction, oxidative stress, inflammation, altered nutrient transport, mitochondrial dysfunction, epigenetic modifications, and microbiome changes, predisposing offspring to obesity, insulin resistance, and type 2 diabetes.

Why it matters

Understanding the developmental windows and molecular mechanisms of metabolic programming helps identify targets for early interventions, such as optimized maternal glycemic control and nutritional strategies, to curb intergenerational cardiometabolic disease.

Limits

The abstract provides no quantitative data or specific study counts. As a narrative review, it lacks systematic search methodology, risk-of-bias assessment, and meta-analytic pooling, relying largely on a synthesis of diverse preclinical and observational evidence.