نتایج جستجو برای: assisted reproduction technologies

تعداد نتایج: 389934  

Journal: :Human Reproduction Update 1999

Journal: :Cochrane Database of Systematic Reviews 2016

Journal: :International Journal of Andrology 1991

Journal: :Journal of endocrinological investigation 2007
R Negro G Formoso L Coppola G Presicce T Mangieri A Pezzarossa D Dazzi

UNLABELLED Thyroid dysfunction and the presence of thyroid antibodies increase the risk of infertility and miscarriage. The aim of the present study was to assess if patients with autoimmune thyroid disease undergoing assisted reproduction technologies (ART) are afflicted by poor pregnancy and/or delivery rate and if the outcome is conditioned by pre-ART thyroid status. The study was retrospect...

Journal: :Human reproduction 2012
A M H Koning M A Q Mutsaerts W K H Kuchenbecker F J Broekmans J A Land B W Mol A Hoek

BACKGROUND Based on a presumed negative impact of overweight and obesity on reproductive capacity and pregnancy outcome, some national guidelines and clinicians have argued that there should be an upper limit for a woman's BMI to access assisted reproductive technologies (ART). However, evidence on the risk of complications or expected success rate of ART in obese women is scarce. We therefore ...

2012
O P Verma R Kumar A Kumar S Chand

It has become evident that advances in farm animal reproduction have become increasingly dependent on advance scientific research in addition to an understanding of the physiological processes involved in reproduction. The use of assisted reproductive techniques (ART) has helped owners to produce offspring from valuable farm animals that were considered infertile using standard breeding techniq...

2013
Paolo Giovanni Artini Maria Ruggiero Alessia Uccelli Maria Elena Obino

Reduced ovarian reserve is a condition characterized by a reduced competence of the ovary to produce oocyte due to advanced age or congenital, medical surgical and idiopathic causes. Age is considered to be the principal factor in determining the reduction of ovarian reserve, especially in woman over 40 years of age, but it’s well known that a premature reduction of ovarian reserve can also occ...

Journal: :Clinics 2007
Patricia de Campos Pieri Mariangela Tuzzollo Missaglia Juliana de Almeida Roque Carlos Alberto Moreira-Filho Jorge Hallak

PURPOSE Screening for mutations in the entire Cystic Fibrosis gene (CFTR) of Brazilian infertile men with congenital absence of vas deferens, in order to prevent transmission of CFTR mutations to offspring with the use of assisted reproductive technologies. METHOD Specific polymerase chain reaction (PCR) primers were designed to each of the 27 exons and splicing sites of interest followed by ...

2005
John A. Robertson

Legal battles over same-sex marriage and technological developments in assisted reproduction have placed the question of the right of gays and lesbians to procreate on the public agenda. This article analyzes the extent to which rights of procreative liberty extend to the use of assisted reproductive techniques to have children and whether, if such rights exist, they can be denied to persons wh...

2017
Vardit Ravitsky

The use of donor sperm or egg for reproduction raises the issue of the right of donor-conceived individuals to know their genetic origins. This paper argues in favor of acknowledging such a right and explores the challenges that cross-border medically assisted reproduction would raise in relation to it. It first explores possible justifications for such a right by discerning its possible concep...

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