The present study was undertaken to evaluate whether the site of ovulation affects the following follicular phase length and pre-embryo development during infertility treatment with ovarian stimulation using clomiphene citrate. A total of 363 cycles in 97 patients undergoing infertility treatment (182 intrauterine insemination (IUI) cycles in 60 patients and 181 in-vitro fertilization (IVF) cyc...

background: the pattern of islamic fasting differs from other forms of fasting, therefore its effect on health also differs. this research studies the effect of islamic fasting on gonadotropin hormones around the time of the ovulatory cycle and ovulation. materials and methods: this self-controlled study was performed on 24 adult females. blood sampling was performed during ramadan and two mont...

The aim of this work was to evaluate the response to 10 generations of selection for ovulation rate. Selection was based on the phenotypic value of ovulation rate, estimated at d 12 of the second gestation by laparoscopy. Selection pressure was approximately 30%. Line size was approximately 20 males and 80 females per generation. Traits recorded were ovulation rate at the second gestation, esti...

background: polycystic ovary syndrome (pcos) is the most common endocrine disorder in females of reproductive age. insulin resistance is a frequent metabolic disturbance in pcos. vitamin d deficiency is a common problem. accumulating evidence suggests that vitamin d has a role on insulin sensitivity so may contribute to reduction of hyperandrogenemia. objective: the aim was to determine the eff...

background: the pattern of islamic fasting differs from other forms of fasting, therefore its effect on health also differs. this research studies the effect of islamic fasting on gonadotropin hormones around the time of the ovulatory cycle and ovulation. materials and methods: this self-controlled study was performed on 24 adult females. blood sampling was performed during ramadan and two mont...

background: currently clomiphene citrate is the first-line treatment to induce ovulation in women with polycystic ovarian syndrome (pcos). surgical therapy with laparoscopic ovarian drilling (lod) may avoid or reduce the need for gonadotropins.   objective: to determine the effectiveness and safety of lod compared with ovulation induction in subfertile women with clomiphene-resistant pcos.   se...

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Electrical activity was recorded from the smooth muscle layer of the infundibulum of unanaesthetized hens during the ovulation cycle. There were low-frequency isolated spike potentials throughout the cycle except for the period near ovulation. There were intermittent bursts of spike potentials about 1 h before ovulation and then an increased frequency of spike potentials near the time of ovulat...

Ovulation is critical for successful reproduction and correlates with ovarian cancer risk, yet genetic studies of ovulation have been limited. It has long been thought that the mechanism controlling ovulation is highly divergent due to speciation and fast evolution. Using genetic tools available in Drosophila, we now report that ovulation in Drosophila strongly resembles mammalian ovulation at ...

We aimed to determine gene expression patterns in the anterior pituitary (AP) of heifers before and after ovulation via deep sequencing of the transcriptome (RNA-seq) to identify new genes and clarify important pathways. Heifers were slaughtered on the estrus day (pre-ovulation; n=5) or 3 days after ovulation (post-ovulation; n=5) for AP collection. We randomly selected 4 pre-ovulation and 4 po...