The Claim

Weight loss following gastric bypass surgery is associated with a 150% increase in thyrotropin receptor (TSHR) expression and a 70% increase in thyroid hormone receptor TRα1 expression in subcutaneous adipose tissue, along with a reduction in circulating thyrotropin (TSH) and free triiodothyronine (FT3) levels, indicating a coordinated alteration in local and systemic thyroid signaling.

Source: Expression of thyrotropin and thyroid hormone receptors in adipose tissue of patients with morbid obesity and/or type 2 diabetes: effects of weight loss

What the research says

Supports is higher

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

Supports
44score
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

After gastric bypass surgery and subsequent weight loss, levels of thyroid-related receptors in fat tissue rise significantly, while levels of thyroid hormones in the blood decrease, reflecting a coordinated shift in thyroid signaling between fat tissue and the bloodstream.

See the scientific wording

Weight loss following gastric bypass surgery is associated with a 150% increase in thyrotropin receptor (TSHR) expression and a 70% increase in thyroid hormone receptor TRα1 expression in subcutaneous adipose tissue, coinciding with a reduction in circulating TSH and FT3 levels, suggesting a coordinated change in local and systemic thyroid signaling.

Why this might work

When fat tissue shrinks after weight loss, the fat cells make more receptors that detect thyroid hormones and the signal that tells the thyroid to produce hormones. These extra receptors make the fat tissue more sensitive to thyroid signals, which tells the brain to reduce the hormone signals going to the thyroid. As a result, the thyroid produces less hormone, and hormone levels in the blood drop.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Expression of thyrotropin and thyroid hormone receptors in adipose tissue of patients with morbid obesity and/or type 2 diabetes: effects of weight loss

    After people had weight-loss surgery, their fat tissue made more of two thyroid-related proteins, and at the same time, the levels of two thyroid hormones in their blood went down—showing that fat and the thyroid are talking to each other and adjusting together.

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

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