Category Archives: Hormone

Circulating Concentrations of Estradiol: RESULTS(6)

RESULTS(6)

Circulating Concentrations of Estradiol

There was no interaction between day after follicular aspiration and month prepuberty for concentrations of estradiol, indicating that there was no change in the pattern of circulating estradiol after follicular aspiration during the 8-mo prepubertal period. Over the 8-mo prepubertal period, changes in the concentration of estradiol were subtle, with concentrations tending to decrease from 8 through 3 mo prepuberty and increase (quartic regression, p < 0.03; Fig. 8a) from 3 to 1 mo prepuberty. The concentration of estradiol decreased (cubic regression, p < 0.008; Fig. 8b) between Days 0 and 1 each month prepuberty and increased between Days 1 and 7 after follicular aspiration each month prepuberty. The greatest magnitude of increase in the concentration of estradiol was between Days 2 and 6 after follicular aspiration each month prepuberty. The concentration of estradiol decreased between Days 7 and 9, with the average decrease between Days 7 and 8 after follicular aspiration being of lesser magnitude than the decrease between Days 8 and 9 after follicular aspiration during each month of the prepubertal period.

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Circulating Concentrations of Estradiol: RESULTS(5)

Frequency of Release of LH Pulses

There was an interaction between day after follicular aspiration and month prepuberty for the number of LH pulses, indicating a change in the pattern of frequency of LH pulses after follicular aspiration from 8 to 1 mo prepuberty. The number of LH pulses increased (linear regression, p < 0.05; Fig. 7) between 8 and 6 mo prepuberty throughout the follicular wave. The numbers of LH pulses were similar between 6 and 3 mo prepuberty. The number of LH pulses increased between 3 and 1 mo prepuberty on each day after follicular aspiration. antibiotics levaquin

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Circulating Concentrations of Estradiol: RESULTS(4)

RESULTS(4)Mean Concentrations of Serum LH

There was no interaction between day after follicular aspiration and month prepuberty for concentrations of LH, indicating that there was no difference in the pattern of change in circulating concentrations of LH after follicular aspiration during the 8-mo prepubertal period. Concentrations of LH decreased (quartic regression, p < 0.008; Fig. 5 a) between 8 and 7 mo prepuberty and increased between 7 and 4 mo prepuberty. There was a subtle decline in the concentration of LH in the blood between 4 and 3 mo prepuberty. The concentration of LH in blood serum increased between 3 and 1 mo prepuberty, with the greatest concentration during the 8 mo of the prepubertal period observed at 1 mo prepuberty. The concentration of LH decreased (quadratic regression, p < 0.03; Fig. 5b) between the time of follicular aspiration and Day 8 after follicular aspiration each month prepuberty. antibiotic levaquin

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Circulating Concentrations of Estradiol: RESULTS(3)

between Days 1 and 5, with a more gradual increase between Days 5 and 9 after follicular aspiration. After follicular aspiration, the diameter of the largest follicle increased between Days 1 and 5 (4.7 mm at 8 and 5.7 mm at 1 mo prepuberty), with a more gradual increase in diameter between Days 5 and 9 at 8 mo (1 mm) compared with a more rapid growth (2 mm) 1 mo prepuberty. buy cheap antibiotics

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Circulating Concentrations of Estradiol: RESULTS(2)

RESULTS(2)

The number of follicles a 5 mm increased (cubic regression, p < 0.0001; Fig. 2b) between Days 1 and 4 after follicular aspiration, with the number of follicles on Day 1 the least during the nine days after follicular aspiration. There was a large increase in the number of follicles a 5 mm between Days 1 and 2, and a more gradual increase in the number of follicles a 5 mm between Days 2 and 4 after follicular aspiration. The number of follicles a 5 mm decreased gradually between Days 4 and 7 after follicular aspiration. There was a second increase in the number of follicles a 5 mm between Days 7 and 9 after follicular aspiration. birth control yasmin

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Circulating Concentrations of Estradiol: RESULTS(1)

Numbers of Follicles < 5 mm in Diameter

There was no interaction between day after follicular aspiration and month prepuberty for number of follicles < 5 mm, indicating that there was no change in the pattern of development in the number of follicles < 5 mm after follicular aspiration over the 8-mo prepubertal period. During the 8 mo prepuberty, the number of follicles < 5 mm increased (quadratic regression, p < 0.0001; Fig. 1a) between 8 and 5 mo prepuberty, with a greater increase in the number of follicles < 5 mm between 8 and 7 mo prepuberty than between 7 and 6, and 6 and 5 mo prepuberty. The number of follicles < 5 mm decreased between 5 and 1 mo prepuberty, with a greater magnitude of decline in the number of follicles between 2 and 1 mo prepuberty than between 5 and 4, 4 and 3, and 3 and 2 mo prepuberty. The number of follicles < 5 mm increased (linear regression, p < 0.0001; Fig. 1b) between Day 1 and Day 9 after follicular aspiration. buy flovent inhaler

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Circulating Concentrations of Estradiol: MATERIALS AND METHODS(5)

MATERIALS AND METHODS(5)

Data were analyzed using polynomial multiple regression analyses including the effects of day after follicular aspiration and month prepuberty. Effects of day after follicular aspiration and month prepuberty were included with polynomial regression effects tested up to the fourth power. Sequential sums of squares were used to eliminate regression variables from the highest to the lowest power. Interaction effects (between day after follicular aspiration and month prepuberty) with combined powers up to four were also tested. The final model included all the interactions up to the highest interaction that was significant and the main effects. buy yasmin online

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Circulating Concentrations of Estradiol: MATERIALS AND METHODS(4)

Circulating concentrations of progesterone were quantified by RIA. Concentrations of progesterone (nonextracted) in plasma were assayed by using a Coat-A-Count assay kit (Diagnostic Product Corporation, Los Angeles, CA). The standard curve was modified by the addition of an extra point to the curve at 5 ng/ml, and three additional quality-control samples were also included using plasma with low, medium, and high concentrations of progesterone. buy ventolin inhalers

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Circulating Concentrations of Estradiol: MATERIALS AND METHODS(3)

MATERIALS AND METHODS(3)

The initial 9-day serial blood collections and ovarian follicle evaluations were conducted when females were 9 mo of age. The experimental protocol of ovarian follicular aspiration, ultrasonography of ovarian structures, and blood sampling was repeated at 11 mo of age and subsequently at monthly intervals until puberty in each female. buy cipro

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Circulating Concentrations of Estradiol: MATERIALS AND METHODS(2)

Concentrations of Hormones

To determine age at puberty, blood samples were collected twice weekly beginning at 7 mo of age and continuing until puberty as defined by onset of luteal function, which was determined by circulating concentrations of progesterone. Concentrations of serum progesterone > 1 ng/ ml from blood samples collected twice weekly for two consecutive samples were used as the criteria to determine time of puberty. flovent inhaler

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