1 3518124118Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity1Meta AI8Microsoft · Copilot1Amazon2Apple4China (ByteDance, Huawei, Baidu…)1ByteDance (Doubao)1Others18Total35Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
Who was studied 14,154 European ancestry male cases, 17,948 European ancestry male controls.
The effect
Each copy of the T allele shifted the measure 0.094 lower (95% confidence interval 0.061-0.127); p = 3 × 10−8.
Where it sits Chromosome 15, band 15q21.1 — in an intron of SEMA6D.
What each result means
C/CNo copy of the version the research linked to Attention deficit hyperactivity disorder. This is the starting point the study compared everyone against.
C/TOne copy of the version the research linked to Attention deficit hyperactivity disorder. That is a smaller link than two copies.
T/TTwo copies of the version the research linked to Attention deficit hyperactivity disorder. That is the strongest link of the three results. A link in a study is not a diagnosis.
Biological psychiatry · 2018 · PMID 29325848 · open access
Questions about rs8039398
What is rs8039398?
rs8039398 is a single position in the genome, in or near the SEMA6D gene. Published research associates it with attention deficit hyperactivity disorder. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs8039398 linked to?
On MyGeneLog this position is linked to ADHD (Attention Deficit Hyperactivity Disorder). The research behind each link, and its sources, are set out on that condition page.
Does having rs8039398 mean I will get this?
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
Where does the information about rs8039398 come from?
GWAS Catalog, Biol Psychiatry 2017, PMID:29325848. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
1 3518124118Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity1Meta AI8Microsoft · Copilot1Amazon2Apple4China (ByteDance, Huawei, Baidu…)1ByteDance (Doubao)1Others18Total35Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
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