The Claim

In pregnant C57BL/6NCrl mice with hyperthyroidism, skeletal muscle exhibits glycogen depletion and increased mitochondrial capacity in glycolytic fibers without alterations in SERCA2 expression, indicating a metabolic shift toward non-shivering, muscle-based energy utilization to meet maternal metabolic demands.

Source: Pregnancy negates thyroid hormone-induced pyrexia.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
20score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

In pregnant mice with hyperthyroidism, muscle tissue shows reduced glycogen stores and enhanced mitochondrial function in fast-twitch fibers, while SERCA2 protein levels remain unchanged, reflecting a metabolic adaptation to increase energy production within muscle.

See the scientific wording

In pregnant C57BL/6NCrl mice, skeletal muscle undergoes selective metabolic remodeling—specifically glycogen depletion and increased mitochondrial capacity in glycolytic fibers—without changes in SERCA2 expression, suggesting a shift toward non-shivering, muscle-based energy utilization to meet maternal metabolic demands during hyperthyroidism.

Why this might work

During pregnancy, high thyroid hormone levels trigger muscle to burn sugar and build more energy-producing factories, but only in muscles that use sugar for quick bursts. The body stops other heat-making systems like fat burning and keeps muscle squeezing proteins unchanged, so the mother stays warm without overheating the baby.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Pregnancy negates thyroid hormone-induced pyrexia.

    When pregnant mice have too much thyroid hormone, their muscles burn through sugar stores and make more energy factories—but don’t change the proteins that control muscle squeezing. This helps the mom stay warm without overheating the baby.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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