Premature Babies Have Higher Risk of Developing Osteoporosis

by Reshma Anand on  May 30, 2016 at 2:35 PM Child Health News   - G J E 4
Calcium, an important mineral for keeping bones healthy is transferred from the expectant mother to the fetus during the last stages of pregnancy. Therefore, babies who are born prematurely have an increased risk of having weaker bones.
Premature Babies Have Higher Risk of Developing Osteoporosis
Premature Babies Have Higher Risk of Developing Osteoporosis

Adults who were born full term but were small for their gestational age also had lower bone mass. These findings are important since peak bone mass is a major determinant of future osteoporosis.

‘Babies who are born prematurely fail to get adequate calcium from the mother, resulting in lower bone mass and increased risk of osteoporosis.’
"Few studies to date have addressed bone mass in adults who were born with low birth weight, and there are conflicting findings," said Chandima Balasuriya, the first author of the study. Balasuriya is a medical doctor and PhD candidate at the Norwegian University of Science and Technology (NTNU) and St Olavs University Hospital. "Our study shows that both those born prematurely with a very low birth weight and those who were born full term, but small for their gestational age, had lower bone mass than the control group, who were born full term with normal weights."

The study was conducted by the Endocrinology and Bone Group, headed by NTNU Professor Unni Syversen, and looked at 186 adults who were 26-28 years old.

Fifty-two of the participants were very low birth weight babies, with a mean birth weight of 1.2 kg, and a mean gestational age of 29 weeks. Another 59 participants had been born to term, but were considered "small for gestational age", with a mean birth weight of just under 3 kg. The researchers also had a control group of 77 adults who were born at term with normal weight.

For all three groups, researchers measured bone mineral content and density in the spine, neck, hip and the whole body, and looked at current height and weight, smoking, level of physical activity and a variety of other measures.

When the researchers looked at the data from adults who were born small for their gestational age at term, they found that this group had lower bone mass than adults who were born with normal weight at term.

But when the researchers corrected the bone mass measurement for the heights of this group, who tended to be shorter, they found that the low bone mass was partly due to their smaller body size. In contrast, body size alone did not account for the lower bone mass the researchers found in adults who had been pre-term babies.

The good news is that parents and doctors can put this information to use, by helping low-birth weight children build as much bone mass as possible as they grow and develop, through diet and exercise.

"Ensuring that children with low birth weights have a diet rich in calcium, vitamin D and protein, in combination with exercise that involves weight-bearing physical activities may help reduce risk of bone fractures later in life," Balasuriya said.

Source: Eurekalert

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