Saturday November 17, 2018

Menstrual Age of Mother Directly Linked with Son’s Puberty

Puberty at a younger age has also been linked to increased risk in later adult life of diseases such as breast and testicular cancer, diabetes and cardiovascular disease

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Puberty
Mother's menstrual age linked to son's puberty: Study, Pixabay
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The age at which a young woman experiences her first menstruation is associated with the age at which her son experiences puberty, according to a latest research.

While it has been known for some time that mothers’ age at puberty is associated with their daughters’, much less was known about the link with their sons’ age at puberty.

The findings, published in the journal Human Reproduction, suggested that mothers who reported having their first menstrual bleed earlier than their peers had sons with signs of puberty starting earlier than their peers.

“The relationship between first menstrual bleeding in mothers and the first menstrual bleeding in their daughters has been reported in several studies,” said Nis Brix, researcher at the Aarhus University in Denmark.

“The novelty of our study was to include other markers of pubertal development in daughters, such as different stages of breast and pubic hair development. The relationship in sons has only been sparsely investigated,” Brix added.

Puberty
Representational image, Pixabay

For the study, the researchers examined 15,822 children and interviewed the mothers twice during pregnancy and asked them to fill in a questionnaire when their children were seven.

“The largest difference was when hair started growing in the armpits, which started, on average, approximately two-and-a-half months earlier; their voices broke nearly two months earlier, acne started to develop nearly two months earlier and their first ejaculation of semen was nearly one and a half months earlier,” Brix said.

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However, in girls, the largest difference was seen in breast development, which started up to six months earlier in those whose mothers had experienced earlier periods than their peers, or up to four months later in girls whose mothers had started puberty later than their peers.

Puberty at a younger age has also been linked to increased risk in later adult life of diseases such as breast and testicular cancer, diabetes and cardiovascular disease. (IANS)

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Childhood Violence May Spur Puberty, Depression: Study

The association between the ageing metrics and symptoms of depression may offer a way for doctors to identify children who need help, the researchers said

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Childhood violence may spur puberty, depression: Study. Pixabay

Children who are exposed to violence such as physical, emotional, or sexual abuse are more likely to experience faster biological ageing, including pubertal development and increased symptoms of depression, finds a research.

The study showed that in children who experienced early life violence, accelerated epigenetic ageing was associated with increased symptoms of depression.

This means that faster biological ageing may be one way that early life adversity “gets under the skin” to contribute to later health problems.

Conversely, children exposed to forms of early life deprivation including neglect and food insecurity were more likely to experience their puberty at a later stage compared with their peers, the researchers said.

“The findings demonstrate that different types of early-life adversity can have different consequences for children’s development,” said Katie McLaughlin, postdoctoral student at the University of Washington.

350 million people are known to suffer depression Pixabay
The study showed that in children who experienced early life violence, accelerated epigenetic ageing was associated with increased symptoms of depression. Pixabay

For the study, published in the journal Biological Psychiatry, the team examined 247 children and adolescents aged eight to 16 years.

The results indicated that accelerated ageing following exposure to violence early in life can already be detected in children as young as eight years old.

In addition, the team found that there is a need for increased societal investment in reducing the exposure of children to violence and for biomedical and psychological research to reduce the impact of these experiences throughout the lives of these vulnerable individuals.

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The association between the ageing metrics and symptoms of depression may offer a way for doctors to identify children who need help, the researchers said.

“Accelerated epigenetic age and pubertal stage could be used to identify youth who are developing faster than expected given their chronological age and who might benefit from intervention,” McLaughlin noted. (IANS)