Ovule single

Most superovulatory regimes utilizing p-FSH entail its administration to the recipient animal twice daily for 4-5 days. Regular injections are required due to the relatively short half-life of FSH in serum s.c. administration helps prolong the duration of effectiveness of each injection. The 4 or 5 days of treatment with FSH is followed by a single dose of LH, promoting final follicular maturation and ovulation. 

The voles used in these experiments were housed singly for three-four weeks before being used as a scent donor or subject. Meadow voles born and reared under a long photoperiod reach sexual maturity by 50 d old (Nadeau 1985), and are sexually receptive and readily mate with sexually receptive opposite-sex conspecifics (delBarco-Trillo and Ferkin 2004 Pierce, Ferkin and Williams 2005). Male and female subjects and scent donors were sexually naive and not familiar with one another. Female voles do not undergo estrous cycles, rather they are induced into estrous and ovulation (Keller 1985). 

Provided these two processes are in phase, the conditions are then optimal for fertilisation, proliferation of the zygote to form the blastocyst, implantation of the latter and maintenance of pregnancy. Before ovulation, the development of the ovum and hormone secretion take place in a single structure, the follicle. 

A conventional treatment algorithm involving clomiphene citrate (CC) followed by FSH induction of ovulation may result in a 71% cumulative single-ton live birth rate. In attempts to improve treatment outcome further and reduce complication rates, new compounds such as insulin-sensitizing agents or aro-matase inhibitors (Letrozole) are currently used increasingly. 

Gonadotropins are used to treat infertility in women with potentially functional ovaries who have not responded to other treatments. The therapy is designed to simulate the normal menstrual cycle as far as is practical. A common protocol is daily injections of menotropins for 9 to 12 days, until estradiol levels are equal to that in a normal woman, followed by a single dose of hCG to induce ovulation. Two problems with this treatment are risks of ovarian hyperstimulation and of multiple births. Ovarian hyperstimulation is characterized by sudden ovarian enlargement associated with an increase in vascular permeability and rapid accumulation of fluid in peritoneal, pleural, and pericardial cavities. To prevent such occurrences, ovarian development is monitored during treatment by ultrasound techniques and by measurements of serum levels of estradiol. 

Reviewers may use a checklist similar to the one given in Table I to collect data in a concise format on one page so that differences between treatment groups and the relationships between different parameters become obvious at a single glance. Litter data endpoints can be arranged in a logic order to be considered not in isolation but in context with related endpoints in the cascade of development from ovulation to the end of the fetal period. 

Clomiphene is used in the treatment of disorders of ovulation in patients who wish to become pregnant. Usually, a single ovulation is induced by a single course of therapy, and the patient must be treated repeatedly until pregnancy is achieved, since normal ovulatory function does not usually resume. The compound is of no value in patients with ovarian or pituitary failure. 

Carpels open, without stigmas or true ovularies (or else several carpels borne on a single sporophyll), the ovules and seeds naked and the male gametophytes falling directly into the micropyle (except in the Caytoniae). 

Gamete A reproductive cell such as ovule or pollen. Female and male gametes unite to form a single cell called the zygote, which, through division, generates an embryo and ultimately a progeny individual. 

The flowers of most species have six sepals, arranged in two cycles. Sepals are the outermost whorl of a flower, typically leaf-like in appearance. The stamens, or male organs, of laurel flowers occur in three or four cycles, with three stamens in each. The flowers usually have a single pistil, or female organ, which contains a single ovule that develops into a seed after fertilization. The fruit of most species is aromatic, and is classified as a drupe, in that is has a fleshy outer layer and a hard inner layer with a single seed. 

A nut is a simple fruit, in that it is derived from the pistil of a single flower. Although a nut contains only one seed, the flower from which it develops has a compound ovary, with many ovules (immature and unfertilized seeds). Following fertilization, the other ovules of the flower undergo spontaneous abortion and die. 

Lawrence, A. Houang, E. Hiscock, E. Wells, M. Colh, E. Scatigna, M. Single dose therapy of vaginal candidiasis a comparative trial of fenticonazole vaginal ovules versus clotrimazole vaginal tablets. Curr. Med. Res. Opinion 1990,12, 114-120. 

Basilar placentation is well illustrated in the Polygonacece (Smart Weed, Rhubarb, etc.) in Piper and Juglans. Here, at the apex of the axis and in the center of the ovarian base, arises a single ovule from a small area of placental tissue. 

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