Oviposition is induced upon mating in most insects. Ovulation is a primary step in oviposition, representing an important target to control insect pests and vectors, but limited information is available on the underlying mechanism. Here we report that the beta adrenergic-like octopamine receptor Octβ2R serves as a key signaling molecule for ovulation and recruits protein kinase A and Ca(2+)/cal...

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 study evaluated a seminal effect on the ability to induce ovulation of a synthetic GnRH analogue, buserelin acetate, administered by vaginal mucosa in rabbit does. In a first experiment, 751 receptive nulliparous and multiparous non-lactating does were randomly assigned to groups of different seminal doses (6, 12, 24, 50, and 100 million total sperm in 0.5 mL). All seminal doses contained 5...

background: unovulation is the most common cause of infertility. the first line oral treatment has been clomiphene citrate. another anti-estrogen used for ovulation induction is tamoxifen. many unovulatory infertile women are resistance to anti-estrogens and need another treatment. alternative treatments are aromatas inhibitors. objective: this study was designed to compare the effectiveness of...

Abstract The objective of this study was to evaluate the effects estrus expression on uterine microbiota composition cows day 15 estrous cycle. Non-pregnant Bos taurus beef (n = 23) were exposed a pre-synchronization step followed by 7-d CO-Synch synchronization protocol. On days -10, -3,0 (exogenously induced ovulation),7 and 14, transrectal ultrasonography performed ovarian structures, ensure...

Rabbit is an induced ovulatory species, so ovulation takes place after mating. Traditionally, exogenous and synthetic hormonal factors (administered by intramuscular intravaginal route) such as GnRH analogues, or different physical procedures (i.e. stimulation cannula) have been used to induce in females when artificial insemination applied rabbit farms. Restriction public rejection of the use ...

Ovulation is a gonadotropin-controlled process that is essential for the propagation of all mammalian species. In the present study, we used a pregnant mare serum gonodotropin/human chorionic gonadotropin (hCG)-induced, synchronized ovulation model in rhesus monkeys and systematically investigated the roles of the plasminogen activator (PA) system in the ovulatory process of the primate. At dif...

Background: Sildenafil causes vasodilatation by relaxing the smooth muscles of blood vessels. This enhances endometrial development, the health of which is indispensable for implantation and embryonic and fetal development. Aim: To assess the role of Sildenafil when used in ovulation induction cycles with Clomiphene Citrate (CC) with reference to Endometrial Thickness (ET), follicular developme...