The Claim
In women with levothyroxine-resistant hypothyroidism, elevated Helicobacter pylori IgG levels are positively correlated with thyroid autoantibody titers and TSH concentrations and inversely correlated with free T4 and free T3 concentrations.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In women with hypothyroidism that does not respond to levothyroxine, higher levels of antibodies indicating past Helicobacter pylori infection are associated with higher levels of thyroid autoantibodies and TSH, and lower levels of free T4 and free T3.
See the scientific wording
In women with levothyroxine-resistant hypothyroidism, Helicobacter pylori IgG levels are positively correlated with thyroid autoantibody titers and TSH, and inversely correlated with free T4 and free T3, indicating a dynamic association between gastric infection markers and thyroid immune-endocrine activity.
A stomach infection causes low acid levels, which stops thyroid medicine from being absorbed properly, and also triggers widespread immune activity that makes the body attack the thyroid, leading to higher thyroid-stimulating hormone and lower thyroid hormones.
What the research says
1 studyIn women whose thyroid medication isn't working well, this study found that those with a stomach infection (H. pylori) also had higher thyroid antibodies and higher TSH (a sign their thyroid isn't working), and lower thyroid hormones — and when the stomach infection was treated, their thyroid numbers got better.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.