Oocytes are crucial cells for mammalian reproduction, yet the molecular principles underlying oocyte development are only partially understood. Therefore, contemporary proteomic approaches have been used increasingly to provide new insights into oocyte quality and maturation in various species such as mouse, pig, and cow. Especially, animal studies have helped in elucidating the molecular statu...

Children born through assisted reproduction are not usually followed up in Latin America. However, in spite of all the social-economic and cultural complexity of this part of the world, professionals involved in assisted reproduction should not relinquish the responsibility of following up these children. In May 2002, the Centre for Human Reproduction Sinhá Junqueira, started a specific project...

The use of donor gametes – donated sperm and eggs – in assisted reproduction is a rapidly evolving practice. As a result, several regulations and best practice guidelines have been developed to ensure the safety and best interest of all parties involved, especially those of the donor offspring. Perhaps one of the most significant changes in Canada was the enactment of the Assisted Human Reprodu...

Although modern assisted reproduction techniques is helping to overcome severe male factor infertility, conventional treatment modalities are still the first approach to male fertility disorders. The critical step in treating male infertility is to evaluate properly every male partner of an infertile couple and to generate the suitable treatment strategy. Specific medical management of infertil...

OBJECTIVE To medically and psychologically assess gay men seeking parenthood through assisted reproduction and to provide guidelines for the assessment. DESIGN Qualitative observational study. SETTING Academic medical center. PATIENT(S) Thirty gay males (15 couples) presenting for assisted reproduction using an oocyte donor and a gestational carrier. INTERVENTION(S) Semistructured inter...

Embryos formed by somatic cell nuclear transfer to enucleated oocytes (cloning) have given rise to viable offspring in several mammalian species. The possibility of future application of this technique to human assisted reproduction (reproductive cloning) has been widely debated. On this background there is current discussion of the potential for a cloning-derived technique, which aims at synga...

s:3020:"1. Medical Ethics and History of Medicine Research Center, Tehran University of Medical Science, Tehran Iran 2. Department of Epidemiology and Reproductive Health, Reproductive Epidemiology Research Center, Royan Institute, ACECR, Tehran Iran Informed consent is considered the most important step in clinical interventions. According to the Beauchamp’s definition the consent is: “...an a...

Marsha Garrison1 and Michele Goodwin2 have each written clever, edgy, and insightful articles on the oversight of new reproductive technologies. Both of them frame the issues around the regulation of reproduction, not assisted reproduction. “Assisted reproduction” might mean doctors, clinics, or patients. “Reproduction” clearly means mothers. Both are correct in this recognition: the regulation...