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DNA Traits · Heart & circulation

Triglycerides, LPL marker

The blood level of triglycerides, the most common fat in the blood.

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Evidence · Replicated

What the research found

In the cited research, the G allele at rs12678919 was associated with lower blood triglyceride concentrations in the studied cohorts.

AA
Higher average
AG
Middle
GG
Lower average
Modest effect

What the study found

In the study, each copy went with lower triglycerides in the blood on average.

Framingham Heart Study participants (second and third generation, European ancestry) · Table 2 (FHS effect size column)
Evidence
Genome-wide association at an established lipid locus
Who was studied
European-ancestry participants across multiple research cohorts
1000 Genomes Project

How common each genotype is

How common each genotype is in the 1000 Genomes Project, by region
RegionAAHigher averageAGMiddleGGLower average
All regions2,504 people80%19%1%
Africa661 people78%21%1%
The Americas347 people88%12%<1%
East Asia504 people77%22%<1%
Europe503 people76%21%2%
South Asia489 people83%16%<1%

Among the 2,504 people of the 1000 Genomes Project, in five world regions. These percentages describe groups of people, never anyone’s chance of having a trait.

Ancient genomes

Through time

How often the studied letter was read in ancient people, era by era, in the region chosen.

Region
Through time: Europe
Before farmingbefore 6500 BC0%0 of 45 copies read
First farmers6500 to 3000 BC15%85 of 574 copies read
Bronze Age3000 to 1200 BC13%63 of 477 copies read
Iron Age and Antiquity1200 BC to AD 60013%77 of 610 copies read
Middle AgesAD 600 to 150011%45 of 411 copies read
Today1000 Genomes13%131 of 1,006 copies

Neanderthal and Denisovan genomes

Altai Neanderthal
No copies
Vindija Neanderthal
No copies
Chagyrskaya Neanderthal
No copies
Denisovan
No copies

Neanderthals and Denisovans carried the other letter, so this letter is younger than our split with them.

For most ancient people only one of their two copies can be read, so these counts are copies read, not people. Close relatives, repeated samples and samples the archive marks as unreliable are left out. Damage in old DNA can fake this letter, so it is counted only from samples treated to remove that damage and from high-quality genomes. Ancient genomes from the Allen Ancient DNA Resource (AADR v66): 15,136 people.
rs12678919

The marker

Gene or region
LPL region
Marker
rs12678919
Location
Chromosome 8 · GRCh37 19,844,222 · GRCh38 19,986,711
Letters studied
A and G, with G as the studied allele

A DNA Traits report reads this marker in your raw DNA file and shows which of the three genotypes is yours, with how common it is. It counts the copies of the studied allele; it does not measure the trait itself.

Marker
LPL region · rs12678919
Location
Chromosome 8 · GRCh37 19,844,222 · GRCh38 19,986,711
Studied allele
G
Published statistic
TG beta -0.25 SD per G (SE 0.03) in FHS, combined P 2e-41, N 19,840; HDL +0.23 (0.03), P 2e-34, N 19,794 (Table 2). Teslovich 2010: G -13.64 mg/dL, P 2e-115; Willer 2013: G -0.17, P 2e-199 (GWAS Catalog); 0.25 SD per copy (Table 2 (FHS effect size column))
1000 Genomes Project phase 3, people with 0, 1 and 2 copies
All regions 1999 / 479 / 26 · Africa 515 / 138 / 8 · The Americas 305 / 41 / 1 · East Asia 387 / 113 / 4 · Europe 384 / 107 / 12 · South Asia 408 / 80 / 1
See this card in the sample report
Limits

What it cannot tell you

Triglycerides change strongly with the last meal. The same marker also raises HDL cholesterol.

Common variants at 30 loci contribute to polygenic dyslipidemia (Kathiresan et al., 2009)
The same topic

More in Heart & circulation

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