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Maternal-fetal deprivation and the cardiometabolic syndrome
Michael Bursztyn1, Ilana Ariel
1Departments of Medicine, Hypertension Unit, and Pathology, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel. bursz@cc.huji.ac.il
Insights
Low birth weight may program the body for cardiometabolic syndrome, including obesity and diabetes, due to fetal adaptations to nutrient scarcity. This review explores the mechanisms behind this "fetal programming" and its long-term health consequences.
Area of Science:
- Developmental biology
- Cardiovascular science
- Metabolic health
Background:
- Epidemiologic studies link low birth weight to adverse cardiovascular outcomes.
- Risk factors for cardiometabolic syndrome (obesity, insulin resistance, diabetes, hypertension) are associated with low birth weight.
- Animal studies support the link between low birth weight and cardiometabolic syndrome.
Purpose of the Study:
- To review adaptive responses in intrauterine growth restriction models.
- To discuss mechanisms of fetal programming for cardiometabolic syndrome.
- To explore the link between early-life nutrition and later-life metabolic health.
Main Methods:
- Review of animal studies on intrauterine growth restriction.
- Analysis of cellular and physiological adaptations to nutrient scarcity.
- Examination of mechanisms mediating fetal programming.
Main Results:
- Fetal programming involves adaptive responses to nutrient shortage during gestation.
- These adaptations can lead to maladaptation when exposed to abundant nutrients postnatally.
- Multifactorial mechanisms link low birth weight to later-life cardiometabolic syndrome.
Conclusions:
- Fetal programming is a key mechanism linking low birth weight to cardiometabolic syndrome.
- Understanding these mechanisms is crucial for preventing cardiovascular and metabolic diseases.
- Early-life environment significantly influences long-term health outcomes.
Abstract:
Epidemiologic studies suggest a relationship between low birth weight and adverse cardiovascular outcomes. Risk factors such as obesity, insulin resistance, diabetes mellitus, and hypertension--the cardiometabolic syndrome--are similarly affected. These observations are now supported by numerous animal studies. The mechanisms linking low birth weight and the cardiometabolic syndrome later in life appear to be multifactorial and involve alterations in the normal cellular and physiologic systems associated with growth in an unfavorable environment. Such "fetal programming," an adaptation to a shortage of nutrients, may bring about maladaptation upon postnatal exposure to an abundance of nutrients. This review briefly summarizes the adaptive responses in various models used to induce an intrauterine growth restriction, and discusses insights into the mechanisms mediating the fetal programming of the cardiometabolic syndrome.
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