Triglyceride (neutral fat) levels
- The normal value for triglycerides (neutral fats) is less than 150 mg/dLAnd high levels increase the risk of arteriosclerosis and cardiovascular disease.
- T-type mutation in DNA region rs1260326Research shows that people with
- appropriateMeal management/aerobic exercise/weight controlIt is possible to improve neutral fat levels by
Overview Triglycerides (neutral fats) have the role of storing energy ingested from meals in the body, but excessive amounts can have negative effects on the body. The normal value for triglycerides is 150 mg/dL or less, but if it exceeds this, you may be diagnosed with hypertriglyceridemia. High triglyceride levels increase the risk of cardiovascular diseases such as angina pectoris, myocardial infarction, valvular heart disease, and arrhythmia, as well as arteriosclerosis and diabetes. Causes of high triglyceride levels include excessive calorie intake, diets high in sugar and fat, excessive alcohol intake, lack of exercise, and genetic factors. Therefore, in order to keep triglycerides within the normal range, it is important to eat a healthy diet, exercise regularly, control your weight, and consume appropriate amounts of alcohol. A study by Zhou et al. from Huazhong University of Science and Technology revealed that high levels of triglycerides (neutral fats) are associated with a DNA region called rs1260326. There are three genotypes in this DNA region: TT, TC, and CC, and it was found that people with the T genotype tend to have high triglycerides.
What are triglycerides (neutral fats)?
Triglycerides (neutral fats) are lipids that have the role of storing energy in the body from meals.The normal value is 150 mg/dL or less, and if it exceeds this, hypertriglyceridemia is diagnosed (1).
What is the cause of high neutral fat?
The causes of triglyceride exceeding the standard value are classified into the following five categories.
- Excessive calorie intake:Amount of food that exceeds the daily calorie consumption
- Meals high in sugar and fat:Regular consumption of sweets, fried foods, and soft drinks
- Excessive intake of alcohol:Promotes neutral fat synthesis in the liver
- Lack of exercise:Decrease in fat burning opportunities
- Genetic factors:T-type mutation in DNA region rs1260326
What happens if you have high neutral fat?
If neutral fat remains above 150 mg/dL, the risk of the following diseases increases.
- cardiovascular disease(angina pectoris, myocardial infarction, valvular heart disease, arrhythmia)
- arteriosclerosis(Plaque accumulation on blood vessel walls)
- diabetes(increased insulin resistance)
- acute pancreatitis(Risk of onset increases when 500mg/dL or higher)
Standard values and classification of neutral fats
| classification | Neutral fat value (mg/dL) | Risk assessment |
|---|---|---|
| normal | less than 150 | low risk |
| borderline high | 150〜199 | Be careful |
| high price | 200〜499 | Treatment consideration |
| very overpriced | 500 or more | Increased risk of pancreatitis |
How to lower neutral fat
The following four things are important to keep neutral fat within the normal range.
- Meal management:Limit carbohydrates and fats and actively consume blue fish (EPA and DHA)
- Aerobic exercise:150 minutes or more of walking/jogging/swimming per week
- Weight management:Aim to maintain BMI below 25
- Alcohol restrictions:1 cup of sake (20g of pure alcohol) or less per day
Relationship between genes and triglycerides (neutral fats)
Relationship between DNA region rs1260326 and triglyceride level
A study by Zhou et al. (1) from Huazhong University of Science and Technology found that the DNA region rs1260326 was associated with triglyceride (neutral fat) levels.
- There are three genotypes of rs1260326: TT, TC, and CC.
- Genotype with T-type mutation(TT/TC) people tend to have high triglycerides
Genotype distribution in Japanese (rs1260326)
| Genotype | Percentage of Japanese people | percentage of the world |
|---|---|---|
| TT type | 33.8% | 16.7% |
| TC type | 48.6% | 48.3% |
| CC type | 17.4% | 34.8% |
The proportion of Japanese people with TT type is approximately twice the world average (16.7%) (33.8%), and there is a genetic tendency to have high triglyceride levels.
Rationale for testing
Superficial DNA region: triglyceride (neutral fat) level
The gene region that most strongly influences triglyceride (neutral fat) levels is rs1260326. The distribution of isomorphic genotypes in Japan is as follows.
- TT
33.8 % - TC
48.6 % - CC
17.4 %
Another gene region involved in triglyceride (neutral fat) levels is rs964184. The distribution of isomorphic genotypes in Japan is as follows
- GG
10.3 % - GC
43.6 % - CC
45.9 %
Another gene region involved in triglyceride (neutral fat) levels is rs306890. The distribution of isomorphic genotypes in Japan is as follows
- TT
58.3 % - TC
36.0 % - CC
5.5 %
Basis for inspection
A study by Zhou et al. from Huazhong University of Science and Technology revealed that high levels of triglycerides (neutral fats) are associated with genes. There is a region called rs1260326 in the human genome, and there are two types of mutations, T and C, in the gene in this region. It has been found that people with the T mutation tend to have higher triglycerides (1).
The DNA region investigated this time
Schematic diagram of DNA map present in cells
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Related genes
| Related genes | GCKR |
|---|---|
| Related genes | ZPR1 |
| Related genes | SPRY3 |
Frequently asked questions (FAQ)
Q1. What is triglyceride (neutral fat)?
Triglycerides (neutral fats) are lipids that help the body store energy from food.The normal value is 150 mg/dL or less, and if it exceeds this, hypertriglyceridemia is diagnosed. Excessive accumulation increases the risk of arteriosclerosis and cardiovascular disease (1).
Q2. What is the cause of high neutral fat?
The main cause isExcessive calorie intake, sugary/fatty foods, excessive alcohol intake, lack of exercise, genetic factorsThere are five. Carriers of the T mutation in the DNA region rs1260326 have a genetic tendency to have high levels of triglycerides (1).
Q3. How to lower neutral fat?
Dietary management (restricting carbohydrates and fats, intake of blue fish), aerobic exercise for at least 150 minutes per week, maintaining a proper weight, limiting alcohol intakeis effective.
Q4. Can the risk of developing triglycerides be determined through genetic testing?
By examining the genotype of the DNA region rs1260326,Genetic predisposition to high neutral fat levelsYou can figure out whether Studies have shown that people with the T genotype tend to have higher levels of triglycerides (1).
References
- Reference link 1: 2013 Dec., Li Zhou, PLoS One
- Reference link 2: 2017 May., Lorraine Southam, Nat Commun
- Reference link 3: 2018 Mar., Thomas J Hoffmann, Nat Genet