Many salmonid species have recently become at risk of extinction. For fish species where eggs cannot be cryopreserved, establishment of techniques to preserve genetic resources other than egg and embryo cryopreservation is imperative. In the present study, spermatogonia from male trout were transplanted into the peritoneal cavity of newly hatched sterile triploid salmon. Transplanted trout sper...

the use of donated embryos has offered hope for infertile couples who have no other means to have children. in iran, fertility centers use fertile couples as embryo donors. in this paper, the advantages and disadvantages of this procedure will be discussed. we conclude that embryo-donation should be performed with frozen embryos thus preventing healthy donors from being harmed by fertility drug...

Abstract Study question How significant is the age factor for clinical success of controlled ovarian stimulation cycles (COS) in various subgroups egg donors? Summary answer There no negative impact donor outcome donation cycle. What known already It was shown that an independent outcomes, which could predict over 80% IVF success. also reported there were associations between oocyte harvest and...

An increasing number of babies are being born using donated sperm, where the child lacks a genetic link to the father, or donated eggs, where the child lacks a genetic link to the mother. This study examined the impact of telling children about their donor conception on mother-child relationships and children's psychological adjustment. Assessments of maternal positivity, maternal negativity, m...

selective deficiency of immunoglobulin a (iga) is the most frequent primary hypogammaglobulinemia. as some iga-deficient patients have iga antibodies in their plasma which may cause anaphylactic reactions, blood centers usually maintain a list of iga-deficient blood donors to prepare compatible blood components. in this study we determined the incidence of selective iga deficiency (sigad) in no...

in the september and november 2006 issues of nature clinical practice nephrology , two articles regarding living unrelated kidney donor transplantation alluded to the practices in iran. having served in the planning, supervision and implementation of various aspects of health care in iran, including organ transplantation (anh), and as transplant nephrologists who have actively participated in t...

brain death is defined as the permanent, irreversible and concurrent loss of all brain and brain stem functions. brain death diagnosis is based on clinical criteria and it is not routine to use paraclinical studies. in some countries, electroencephalogram (eeg) is performed in all patients for the determination of brain death while there is some skepticism in relying on eeg as a confirmatory te...

Stem cells are unique that have the ability to differentiate into with specific functions and renew themselves produce new stem cells. One type of actively studied is Spermatogonial Cells (SSC). SSC a unipotent cell develops spermatozoa in mammalian testis. can be transplanted male testis recipients improve genetic quality livestock propagate valuable livestock. transplantation procedure starte...

The progress of science in the medical field and legal framing artificial insemination have engendered problem third-party accordance with a framework that is provided by some countries. This mainly aims to guarantee right every person unable procreate children. situation led creation sperm egg banks which began receive donations, free charge, while protecting confidentiality donor-related info...