Results 241 to 250 of about 12,245 (296)

Impact of Host and Food Availability on Life‐History Traits in Six Egg Parasitoid Species of the Genus Trichogramma

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
In this study we measured the impact of access to sugar and hosts on the longevity and fecundity of six Trichogramma species: T. cacoeciae, T. chilonis, T. minutum, T. leptoparameron, T. pintoi and T. sibericum. The impact of food differed among species, but there was a general tendency of increased life expectancy and potential fecundity with sugar ...
Véronique Martel   +2 more
wiley   +1 more source

Abnormal cleavage patterns in equine in vitro‐produced embryos lead to higher early pregnancy loss

open access: yesEquine Veterinary Journal, EarlyView.
Summary Background Despite significant advances, in vitro production (IVP) of equine embryos continues to lack standardised embryo classification criteria and is associated with increased rates of early pregnancy loss compared with in vivo‐derived blastocysts.
Soledad Martin‐Pelaez   +6 more
wiley   +1 more source

Fertilidade na Síndrome de Turner [PDF]

open access: yes, 2015
Catarina Ribeiro Costa
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Oocyte donation in 61 patients

International Journal of Gynecology & Obstetrics, 1989
Oocyte donation was performed by gamete intrafallopian transfer in 61 women, 34 of whom were amenorrhoeic. The mean age of the donors was 32 years (range 23-38). Seventy-five treatment cycles gave 29 clinical pregnancies, of which 21 reached term, 3 continue, and 5 were lost (3 miscarriages, 1 tubal, and 1 cervical).
P F, Serhal, I L, Craft
openaire   +4 more sources

Oocyte donation

Best Practice & Research Clinical Obstetrics & Gynaecology, 2002
Oocyte donation affords women with ovarian failure, advanced reproductive age, heritable conditions or recurrent implantation failure the ability to conceive. Recipients must be medically screened carefully prior to attempting pregnancy. Egg donors should also be healthy and pose no infectious or genetic risk to the recipient or offspring.
Jeffrey, Klein, Mark V, Sauer
openaire   +3 more sources

[Oocyt donation].

Ugeskrift for laeger, 2021
The number of treatments with donated oocytes has risen markedly in Denmark during the latest decade due to changes in legislation and because female age is increasingly advanced when fertility treatment is warranted. Today, oocyte donation is a standard procedure offering the otherwise untreatable a high chance of achieving a pregnancy.
Larsen, Elisabeth Clare   +2 more
openaire   +2 more sources

Oocyte donation: a review

BJOG: An International Journal of Obstetrics & Gynaecology, 1989
Summary. Oocyte donation provides an option for achieving pregnancy in women lacking functioning gonads, or in whom IVF techniques have failed to harvest adequate oocytes, or those who do not wish to use their own gametes because of hereditary disease. In agonadal women, artificial menstrual cycles are required before proceeding to gamete donation.
I T, Cameron   +5 more
openaire   +2 more sources

Oocyte donation

Current Opinion in Obstetrics and Gynecology, 1992
Use of donor oocytes is becoming an increasingly important facet of assisted reproductive technology programs. Candidates for donor oocytes include women with premature ovarian failure or severe genetic disorders, women who respond poorly to human menopausal gonadotropin, and women older than 40 years who do not conceive with used of other therapies ...
openaire   +2 more sources

Repetitive oocyte donation

Fertility and Sterility, 2008
This Committee Opinion concludes that donors be advised on the number of cycles/donations that a given oocyte donor may undergo. Although existing data cannot permit conclusive recommendations, a concern for the issues of safety and well-being of oocyte donors warrants consideration.
openaire   +2 more sources

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