Could aspiration of the Graafian follicle cause luteal phase deficiency?

1982 ◽  
Vol 37 (2) ◽  
pp. 205-208 ◽  
Author(s):  
Wilfried Feichtinger ◽  
Peter Kemeter ◽  
Stephan Szalay ◽  
Adolf Beck ◽  
Herbert Janisch
Keyword(s):  
Luteal Phase ◽  
Graafian Follicle

THE SOURCE OF OVARIAN OESTRADIOL AND ANDROSTENEDIONE IN THE SHEEP DURING THE LUTEAL PHASE

1976 ◽  
Vol 83 (2) ◽  
pp. 402-409 ◽  
Author(s):  
D. T. Baird ◽  
R. J. Scaramuzzi
Keyword(s):  
Blood Flow ◽  
Corpus Luteum ◽  
Luteal Phase ◽  
Contralateral Side ◽  
Large Follicle ◽  
Graafian Follicle ◽  
Follicle Diameter ◽  
The Mean ◽  
Low Levels

ABSTRACT The secretion of oestradiol and androstenedione was investigated in sheep by cannulating both ovarian veins in situ. The mean ovarian blood flow (ml/min ± se) was significantly higher on the side containing the corpus luteum (7.67 ± 1.36) than on the contralateral side (4.93 ± 0.85). The mean secretion (ng/min ± se) of oestradiol (1.09 ± 0.36) and androstenedione (1.52 ± 0.16) was higher on the side containing at least one large follicle (diameter > 4 mm) than on the contralateral side (0.19 ± 0.05 and 0.62 ± 0.21, respectively). The secretion of oestradiol was unchanged following enucleation of the corpus luteum but fell to very low levels (0.062 ± 0.022 ng/min) after enucleation of follicles diameter > 4 mm. The secretion of androstenedione fell significantly after enucleation of both corpus luteum and large follicles. These results suggest that during the luteal phase in the sheep oestradiol is secreted virtually exclusively by the largest non-atretic Graafian follicle. Androstenedione in contrast arises from both follicle, corpus luteum and possibly stroma.

EVALUATION OF CHANGES IN CARDIORESPIRATORY FUNCTIONS DURING DIFFERENT PHASES OF THE MENSTRUAL CYCLE IN YOUNG WOMEN

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shehnaz Shaikh
Keyword(s):  
Menstrual Cycle ◽  
Sample Size ◽  
Young Women ◽  
Luteal Phase ◽  
Uterine Wall ◽  
Normal Weight ◽  
Follicular Phase ◽  
Menstrual Phase ◽  
Granulose Cells ◽  
Efficiency Test

Introduction: Menstrual cycle or menstruation involved discharge of sanguinous fluid and a sloughing of uterine wall. In women menstruation occurs at regular intervals on an average of 28 days, although most women gave a history of regular intervals of 28 to 30 days. About 10% -15% of women showed cycle at the precise 28 ± 2 days intervals when menstrual calendar was utilized. Normally in young women in different phases of ovarian cycles the plasma levels of estrogen vary. Ovulation occurs in the first 12-13th day of menstrual cycle, which is termed estrogen surge and second occurs in mid-luteal phase. During mid cycle or follicular phase of menstrual cycle the plasma concentration of progesterone is very low about 0.9 ng/mL. its level starts rising owing to secretion from the granulose cells. During luteal phase progesterone level reaches its peak value of 18 ng/mL and its level fall to a minimum value toward the end of the cycle. Estrogen affects local and systemic vasodilation. The menstrual cycle envelops two fundamental stages, the follicular stage (FP) and the luteal stage (LP). The follicular stage can part advance into two substages; the early FP, which is characterised with moo concentrations of both the key hormones estrogen and progesterone; and the mid FP where estrogen is tall autonomously from progesterone. The LP is epitomized by tall concentration of both estrogen and progesterone. These two fundamental stages are isolated by a soak surge in luteinizing hormone activating ovulation. These recurrent changes are said to be frequency unsurprising while long time. Aim: The main aim of this study is to evaluate the Cardiorespiratory functions changes during different Phases of Menstrual Cycle.   Material and methods: In this study, 20 with normal weight, 20 with obese and 20 with overage were included and taken them as a sample size. In this study all the young women those were recruited as a sample size are unmarried, undergraduate female student with the between the age group of 18-22years, having regular 28+6 days menstrual cycle for at least last 6months prior to this study. For the collection of data all the participants were instructed to attend the physiology lab department during each of three different phases. Day-2 during menstrual phase, Day-7, during follicular phase and Day-22 during luteal phase and the following parameters were recorded as Anthropometric measurements, measuring of pulse rate and blood pressure and cardiac efficiency test. Result: In general, work out proficiency changed essentially amid the distinctive stages of the menstrual cycle with the most elevated amid luteal stage and least amid menstrualo stage. There was no critical contrast in impact test amid menstrual stage, follicular stage and luteal stage of menstrual cycle among three bunches of people. Conclusion: We have watched noteworthy increment in cardiac and respiratory proficiency within the luteal stage of the menstrual cycle in ordinary weight people. Lower wellness levels were watched in overweight and stout females. In this manner hone of customary work out and admissions of solid slim down which offer assistance in lessening the weight and in turn the BMI will offer assistance in improving the physical wellness of the people. Keywords: Cardiorespiratory, Menstrual cycle, expiratory blast test

PROGESTERONE IN THE HUMAN PERIPHERAL BLOOD IN THE PREOVULATORY PERIOD OF THE MENSTRUAL CYCLE

1967 ◽  
Vol 55 (1) ◽  
pp. 91-96 ◽  
Author(s):  
Benno Runnebaum ◽  
Josef Zander
Keyword(s):  
Menstrual Cycle ◽  
Corpus Luteum ◽  
Peripheral Blood ◽  
Human Peripheral Blood ◽  
Progesterone Concentration ◽  
Plasma Progesterone ◽  
Progesterone Secretion ◽  
Graafian Follicle ◽  
The Mean ◽  
Mean Concentration

ABSTRACT Progesterone was determined and identified in human peripheral blood during the preovulatory period of the menstrual cycle, by combined isotope derivative and recrystallization analysis. The mean concentration of progesterone in 1.095 ml of plasma obtained 9 days before ovulation was 0.084 μg/100 ml. However, the mean concentration of progesterone in 1.122 ml of plasma obtained 4 days before ovulation was 0.279 μg/100 ml. These data demonstrate a source of progesterone secretion other than the corpus luteum. The higher plasma-progesterone concentration 4 days before ovulation may indicate progesterone secretion of the ripening Graafian follicle of the ovary.

EFFECT OF LH-RH ON SERUM FSH, LH AND PROGESTERONE DURING THE LUTEAL PHASE OF THE MENSTRUAL CYCLE

1975 ◽  
Vol 80 (1_Suppla) ◽  
pp. S20
Author(s):  
I. Gerhard ◽  
M. Röhrich ◽  
K. Klinga ◽  
B. Runnebaum
Keyword(s):  
Menstrual Cycle ◽  
Luteal Phase ◽  
Lh Rh

EFFECT OF STRESS ON THE PROFILE OF PLASMA STEROIDS IN BABOONS (PAPIO HAMADRYAS)

1979 ◽  
Vol 90 (2) ◽  
pp. 372-384 ◽  
Author(s):  
N. P. Goncharov ◽  
A. G. Taranov ◽  
A. V. Antonichev ◽  
V. M. Gorlushkin ◽  
T. Aso ◽  
...  
Keyword(s):  
Luteal Phase ◽  
Immobilization Stress ◽  
Marked Decrease ◽  
Follicular Phase ◽  
Papio Hamadryas ◽  
Pronounced Increase ◽  
Consistent Finding ◽  
Plasma Steroids ◽  
Competitive Protein Binding ◽  
17 Hydroxyprogesterone

ABSTRACT Adult baboons (5 males and 5 females) were exposed to immobilization stress by being strapped to a table in a horizontal position for 2 h. In females the experiment was performed during both the follicular and luteal phase. Peripheral blood was withdrawn at frequent intervals, the first sample just before immobilization, and the last one 3 days later. A number of steroids were measured in blood plasma samples by radioimmunoassay (17-hydroxypregnenolone, 17-hydroxyprogesterone, pregnenolone, testosterone, dihydrotestosterone, progesterone, 20α-dihydroprogesterone, oestrone, oestradiol) or competitive protein binding (cortisol) techniques. The cortisol levels exhibited a marked increase in both sexes. This increase was observed already during the immobilization and lasted for approximately 24 h. A similar, even more pronounced increase was seen in 17-hydroxypregnenolone, 17-hydroxyprogesterone and pregnenolone levels. A marked, long-lasting (72 h) decrease of testosterone and dihydrotestosterone levels was a consistent finding in male baboons. This was not observed in the females which, on the other hand, exhibited a marked decrease (duration 48 h) of progesterone and 20α-dihydroprogesterone levels during the luteal phase, and a significant decrease (duration > 24 h) of oestradiol and oestrone concentrations during the follicular phase. It is concluded that stress has a marked inhibitory action on gonadal function both in male and female baboons. In females the inhibition of steroidogenetic function is exerted both on the ovarian follicles and on the corpus luteum.

Effects of oestradiol on sex hormone binding globulin

1982 ◽  
Vol 101 (2) ◽  
pp. 248-253 ◽  
Author(s):  
Viveca Odlind ◽  
Kerstin Elamsson ◽  
Doris E. Englund ◽  
Arne Victor ◽  
Elof D. B. Johansson
Keyword(s):  
Luteal Phase ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Hormone Binding ◽  
Pronounced Increase ◽  
Menstrual Cycles ◽  
Menopausal Women ◽  
Plasma Oestradiol

Abstract. Sex hormone binding globulin (SHBG) levels were studied for possible effects of oestradiol-17β on SHBG. No change in SHBG plasma was recorded during normal menstrual cycles or during treatment with oestradiol-17β to menopausal women. However, gonadotrophin treatment to amenorrhoeic women to induce ovulation resulted in high oestradiol concentrations and a pronounced increase in SHBG was found during the luteal phase of these cycles. A marked increase of SHBG was also recorded in a woman with pronounced fluctuations of oestradiol during treatment with levonorgestrel sc implants for contraception. In conclusion, effects on SHBG were only found when extraordinarily high levels of plasma oestradiol were recorded.

Studies of the oestrous cycle, oestrus and pregnancy in the koala (Phascolarctos cinereus)

Reproduction ◽  
2000 ◽  
pp. 49-57 ◽  
Author(s):  
SD Johnston ◽  
MR McGowan ◽  
P O'Callaghan ◽  
R Cox ◽  
V Nicolson
Keyword(s):  
Luteal Phase ◽  
Post Partum ◽  
Plasma Concentrations ◽  
External Genitalia ◽  
Oestrous Cycle ◽  
Phascolarctos Cinereus ◽  
Pregnant Females ◽  
Peripheral Plasma ◽  
The Mean ◽  
High Concentrations

As an integral part of the development of an artificial insemination programme in the captive koala, female reproductive physiology and behaviour were studied. The oestrous cycle in non-mated and mated koalas was characterized by means of behavioural oestrus, morphology of external genitalia and changes in the peripheral plasma concentrations of oestradiol and progestogen. The mean (+/- SEM) duration of the non-mated oestrous cycle and duration of oestrus in 12 koalas was 32.9 +/- 1.1 (n = 22) and 10.3 +/- 0.9 (n = 24) days, respectively. Although the commencement of oestrous behaviour was associated with increasing or high concentrations of oestradiol, there were no consistent changes in the morphology or appearance of the clitoris, pericloacal region, pouch or mammary teats that could be used to characterize the non-mated cycle. As progestogen concentrations remained at basal values throughout the interoestrous period, non-mated cycles were considered non-luteal and presumed anovulatory. After mating of the 12 koalas, six females gave birth with a mean (+/- SEM) gestation of 34.8 +/- 0.3 days, whereas the remaining six non-parturient females returned to oestrus 49.5 +/- 1. 0 days later. After mating, oestrous behaviour ceased and the progestogen profile showed a significant increase in both pregnant and non-parturient females, indicating that a luteal phase had been induced by the physical act of mating. Progestogen concentrations throughout the luteal phase of the pregnant females were significantly higher than those of non-parturient females. Parturition was associated with a decreasing concentration of progestogen, which was increased above that of basal concentrations until 7 days post partum.

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