Key result
The L and XL alleles of the 5-HTT promoter gene were significantly more frequent in SIDS victims compared to age-matched healthy controls, indicating a genetic risk factor for SIDS.
Why the study?
Are specific allele variants of the 5-HTT gene associated with sudden infant death syndrome in the Japanese population?
Case-Control (n=142)
Are specific allele variants of the 5-HTT gene associated with sudden infant death syndrome in the Japanese population?
The L and XL alleles of the 5-HTT gene may serve as a genetic risk factor for sudden infant death syndrome in the Japanese population.
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May support genetic susceptibility in Japanese SIDS cases; leaves open replication and causal validation before clinical consideration.
Narita et al. (2001) conducted a case-control in Sudden Infant Death Syndrome (SIDS) (n=142). 5-HTT gene L and XL allele variants vs. Age-matched healthy controls was evaluated on Genotype distribution and allele frequency of the 5-HTT promoter gene. The L and XL alleles of the 5-HTT promoter gene were significantly more frequent in SIDS victims compared to age-matched healthy controls, indicating a genetic risk factor for SIDS.
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