Sentences with word «menarche»

Both BRCA1 and BRCA2 mutation carriers had a median parity of 2.0 live births and age at menarche of 13 years.

«Ultimately this reinforces the importance of including age of menarche in many more studies.»

The use of soy formula in the WIC program, which supplies free formula to welfare mothers, may explain the astronomical rates of early menarche in African American girls.

In response to «Sugar - sweetened beverage consumption and age at menarche in a prospective study of US girls,» a study published online today ahead of print in the journal Human Reproduction, the American Beverage Association issued the following statement:

The Columbia researchers used data from peer - reviewed studies and health and social sciences databases to assess the link between menarche and various negative sexual and reproductive health outcomes in adolescence.

Beginning with an imaginary journey into the red tent, a traditional place of women's wisdom, some of the gifts and secrets of womanhood are imparted in a gentle lyrical way along with practical advice on preparing for her first period, choosing menstrual products, herbal healing, and celebrating menarche.

A girl's first period is called menarche.

This helps explain why women who go through menarche later are taller than women who have their first period at a young age, says Uitterlinden.

This figure rose to 50 per cent when the woman began her period at 12, and 53 per cent when the women entered menarche at age 14 (Human Reproduction, DOI: 10.1093 / humrep / der107).

One study showed that in the first year after menarche (start of menstruation), 80 % of girls did not ovulate, meaning they did not make progesterone.

Girls who experienced menarche at an earlier age were also more likely to get married at a young age.

Fukuda points to previous research demonstrating higher levels of the female sex hormone oestradiol in women who entered menarche before the age of 12.

Early maturing girls may begin breast development as early as third grade and may reach menarche in fourth or fifth grade.

Previous research has investigated the relationship between pubertal timing and depression in girls, with most results suggesting that earlier menarche predicts more depression in adolescence.

(* My own estimate: average number of years from menarche to wanting to start a family based on the women I see in my clinic.)

I have had my period 4 times since menarche (i was 16 years then), i am 19 now and its been 9 months since i last saw my period.

The first period is known as menarche (pronounced: MEN - ar - kee).

Over the long term, vigorous training and moderate leisure - time activity may decrease estradiol and progesterone secretion, 3,6,41 reduce the length of the luteal phase, 10,42 induce anovulation, 7,8,41,43 delay menarche, 4,5 and cause secondary amenorrhea.2, 12

I suppose menarche at 9 is early, but I don't think it's unheard of, so perhaps she was «old enough to bear a child» at consummation.

Just how LIN28B might affect menarche isn't clear, says Ken Ong, a paediatrician at the Medical Research Council Epidemiology Unit in Cambridge, UK, who led another team.

«This highlights the need for a greater understanding of the cultural and regional variations in the effect of age at menarche on age at marriage both within and between countries.»

In this post, you'll learn all the open conversations about menarche (the first period) that I've had with my daughter, plus practical, fun, and special ideas to celebrate this rite of passage in every girls» life!

BPA alters the action of Luteinizing Hormone and Follicle Stimulating Hormone which control menarche in girls.

Occasional moments suggest half an idea (the Chloe Grace Moretz menarche segment makes a fair point) or raise a semi-titter but are dragged down by simply insulting, hectoring nonsense like an Anna Faris coprophilia routine.

Is age of menarche among school girls related to academic performance?.

Taken together, the results suggest that early childhood depressive symptoms and early menarche represent independent pathways to later depressive symptoms.

As with menarche, these variants explain just a small percentage of the differences between the age at which women go through menopause, which range between about 40 and 60.

The importance of active ductal growth driven by estrogen has been further emphasized by the higher susceptibility of the breast to be transformed during a «high - risk» window in the lifespan of a female encompassed between menarche and a first full - term pregnancy [5].

Girls go through menarche between the ages of 9 and 16, and the variations in LIN28B accounted for just one to three months of these differences.

Three years after menarche 50 % did not ovulate, and by the sixth year 10 % did not ovulate.

Emily Stapley summarises a Mendelian randomisation study that investigates associations between the timing of menarche with depressive symptoms and depression in adolescence.

For instance, one study found that Icelandic girls with two genetic letter Ts at a spot near LIN28B experience menarche 2.4 months earlier, on average, than girls with two Cs at that site.

Age at menarche predicts age at onset of major affective and anxiety disorders Tondo L, Pinna M, Serra G, De Chiara L, Baldessarini RJ.

Loula supports women with their general and reproductive health from menarche to menopause and beyond.

I've had symptoms of PCOS since menarche (age 12), and I'm 39 now.

That's according to Misao Fukuda at the M&K Health Institute in Hyogo, Japan, and colleagues, who found subtle differences in sex ratios of children depending on when a mother entered menarche.

However, Prof Mishra said: «We expect that the underlying relationship between these reproductive characteristics across life is still present, but it may be that our definition of early menarche would be revised.

I went through menarche in 1971 at the age of 13 and from my first period, I had severe dysmenorrhea, the medical term for menstrual cramps.

«These results highlight the possibility that hormonal mechanisms may explain the link between parity [childbearing], breast - feeding, [oral contraceptive] use, and a later age at menarche with a lower mortality risk.

The custom of families and close friends celebrating the menarche of a young woman has, as far as I know, virtually disappeared.

The beverages industry says neither this study nor the body of science show that sugar - sweetened beverage consumption causes early onset of menarche.

«Neither this study nor the body of science shows that sugar - sweetened beverage consumption causes early onset of menarche.

For most girls, their first menstrual period, or menarche (say: MEH - nar - kee), begins about 2 to 2 1/2 years after breast development starts.

It may lead to the early onset of menarche and early development of breast tissue in developing girls.

Some bad effects of any EA chemical, including BPA, are early menarche, reduced sperm counts, altered functions of reproductive organs, obesity and increased rates of cancer, Dr. Bittner explains.

Detailed information on women's reproductive factors was also collected, such as age at menarche, the number of pregnancies, abortions, live births, and the total duration of any breastfeeding for each live birth.