Where did the fetal origins theory come from

Epidemiologist David Barker was the earliest proponent of the theory of fetal origins of adult disease, prompting the theory to be denoted as “Barker’s hypothesis”. In 1986, Barker published findings proposing a direct link between prenatal nutrition and late-onset coronary heart disease.

What theory is fetal origins based on?

In 1995 David Barker wrote: “The fetal origins hypothesis states that fetal undernutrition in middle to late gestation, which leads to disproportionate fetal growth, programmes later coronary heart disease.”1 Now, 10 years later, the importance of events before birth for lifetime health has been confirmed in many …

What is fetal origins research?

The fetal origins hypothesis states that undernutrition in the womb during middle to late pregnancy causes improper fetal growth, which in turn, causes a predisposition to certain diseases in adulthood.

What does the term fetal origins refer to?

Abstract The “fetal origins” hypothesis postulates that conditions, most likely nutritional, “program” the fetus for the development of chronic diseases in adulthood.

Who proposed the thrifty hypothesis of fetal programming?

Hales and Barker (1) caused a paradigm shift in our thinking about diabetes prevention when they demonstrated that low birth weight (due to growth retardation) predicted type 2 diabetes (the “thrifty phenotype” or “fetal origins” hypothesis).

What is the fetal programming hypothesis?

The ‘classic’ fetal programming hypothesis proposes that exogenous maternal malnutrition during pregnancy causes a lifelong, persisting adaptation of the fetus resulting in low birthweight, increased cardiovascular risk, and non‐insulin dependent diabetes in adult life.

What is the biological programming hypothesis?

The “Barker hypothesis” postulates that a number of organ structures and associated functions undergo programming during embryonic and fetal life, which determines the set point of physiological and metabolic responses that carry into adulthood.

What is thrifty gene theory?

In 1962 Neel [99] put forward the “thrifty gene hypothesis” that states that individuals who could easily store extra energy would have had an evolutionary advantage during famines. Obese and overweight individuals accordingly have this “thrifty gene”.

Is fetal programming a theory?

Fetal programming, also known as prenatal programming, is the theory that environmental cues experienced during fetal development play a seminal role in determining health trajectories across the lifespan.

What is an example of fetal programming?

Another example of fetal programming processes independent of poor nutrition is programming of a fetal phenotype induced by maternal genes independent of fetal genes.

Article first time published on

What is developmental programming?

Developmental programming refers to the programming of various bodily systems and processes by a stressor of the maternal system during pregnancy or during the neonatal period.

What is fetal programming a lifetime health is under the control of in utero health?

the control of in utero health The “Barker hypothesis” postulates that a number of organ structures and associated functions undergo programming during embryonic and fetal life, which determines the set point of physiological and metabolic responses that carry into adulthood.

What is early life programming?

Abstract. The process whereby early exposure to an adverse environment has an influence on later life outcomes has been called ‘early life programming’.

What is perinatal programming?

Perinatal programming, a dominant theory for the origins of cardiovascular disease, proposes that environmental stimuli influence developmental pathways during critical periods of prenatal and postnatal development, inducing permanent changes in metabolism.

How does the geneticist Dr James Neel explain how the Pima Indian is prone to becoming obese?

This slower metabolic rate, combined with a high fat diet and a genetic tendency to retain fat may cause the epidemic overweight seen in the Pima Indians, scientists believe. Scientists use the “thrifty gene” theory proposed in 1962 by geneticist James Neel to help explain why many Pima Indians are overweight.

Are thrifty genes real?

Thrifty genes are genes which enable individuals to efficiently collect and process food to deposit fat during periods of food abundance in order to provide for periods of food shortage (feast and famine).

What is epigenetic expression?

Epigenetics has been defined as ‘the study of mitotically (and potentially meiotically) heritable alterations in gene expression that are not caused by changes in DNA sequence‘ (Waterland, 2006).

What are the critical periods of fetal development?

The process of prenatal development occurs in three main stages. The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.

What are considered teratogens?

Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the substance. Alcohol and cocaine are examples of such substances.

Which is the correct order of events during labor?

Labour has three stages: The first stage is when the neck of the womb (cervix) opens to 10cm dilated. The second stage is when the baby moves down through the vagina and is born. The third stage is when the placenta (afterbirth) is delivered.