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Tag: "puberty" at biology news

Scientists find hormone activity explains adolescent mood swings

The "raging hormones" of puberty are known to produce mood swings and stress for mo...ession, but increases dramatically at the onset of puberty in the part of the brain that regulates emotion. Paradoxically, THP reduced the inhibition produced ...

Does a peptide affect the heart's response to social isolation?

...ns to the study, including the lack of spontaneous puberty and estrous cycles in female prairie voles (unlike their human counterpart), the results serve as a springboard into better understanding the mechanisms that underlie the relations between social behavior and cardiac function in humans. ...

Fertility hope as study shows eggs survive in older ovaries

...hat mice could continue to produce eggs throughout puberty and adulthood. Although their speculation caused debate throughout the scientific community, the scientists could not produce evidence to confirm their idea. However, Professor Findlay and Dr Kerr's research gives support to the theory. Their finding...

Genes affecting blood pressure change as children become adults

...ly surprised to see the novel genes show up during puberty ?although the amount of change surprised him ?but suspects gene expression may be consistent from that point onward. "We need to know what the genes are to develop new medications and treatments and this shows that at different ages there appear to ...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...till defend their turf, learning aggression during puberty by play-fighting, much like humans. Their roughhousing normally includes wrestling and nibbling ?pretty tame stuff. However, hamsters injected with commonly used steroids (suspended in oil) became extremely aggressive. Even after the drug was wi...

Parents need to be educated about HPV vaccinations for daughters

...use, then they could be used to vaccinate girls at puberty in order to prevent HPV infection. By preventing HPV infection, this could have the effect of preventing the pre-cancerous and cancerous changes that HPV infection can trigger. Women and men need to be more aware of HPV infection and what it may mea...

Researchers find gland that tells fruit flies when to stop growing

...rd said. "In humans, it would be as if you reached puberty when you were 6 years old." In the research, Mirth determined the critical weight for fruit flies to begin metamorphosis, and examined when larvae with enlarged prothoracic glands reached that weight compared with normal larvae. This was done by sta...

Suppressing growth hormone in early adulthood may prevent cancer

...uppression of plasma IGF-1 beginning shortly after puberty and continued throughout life reduces the incidence of kidney disease and increases lifespan," Sonntag said. ...

A gene's first 'kiss' sets off that affair known as puberty

...egion of the brain called the hypothalamus just as puberty begins, according to a study published in this wee...ing questions about human development: What causes puberty to begin? How is it that the full repertoire of reproductive hormones can exist at birth, go into hi...

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