The first cleavage of embryos derived from random-bred, inbred, and hybrid-inbred female mice was not arrested by purines at concentrations as high as 30 microM. Development after the first or second cleavage was arrested by hypoxanthine, adenosine or inosine, but not guanosine. In agreement with previous results, the purine-induced block was reversed when arrested embryos were transferred to p...

BACKGROUND Since March 2004, only a maximum of three oocytes were allowed to be subjected to ICSI at one time in Italy. A previous study failed to show an impact of this restriction on fresh embryo transfer outcomes. The objective of this study was to compare ICSI outcomes before and after this restriction in patients with nonobstructive azoospermia. METHODS Patients underwent testicular sper...

OBJECTIVE Delaying embryo transfer (ET) enables us to select among the embryos available for transfer and is associated with positive effects on implantation and pregnancy outcomes. However, the optimal day for ET of human cleavage-stage embryos remains controversial. METHODS A retrospective study of 3,124 in vitro fertilization/intracytoplasmic sperm injection cycles (2,440 patients) was con...

objective: to develop decision-support tools to identify patients experiencing sudden cardiac arrest (sca). methods: eighty calls related to sca were content analyzed, and the contextual patterns that emerged were organized into a checklist. two researchers independently analyzed the recorded calls and compared their findings. eighteen dispatchers scored 20 cases (which included sca and non-sca...

Trypsin-dissociated cells from the muscle tissue of 9-day-old chick embryos were employed to investigate the effects of cycloheximide and a puromycin-cycloheximide mixture on cell aggregation, protein synthesis and respiratory metabolism. Cycloheximide when introduced at a concentration of 10 /Jg/ml into a suspension of cells in Eagle's MEM inhibited aggregation by 25 % at 24 h. At this time an...

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...

cardiac magnetic resonance imaging (cmri) is a well-established noninvasive imaging modality in clinical cardiology. its ability to provide tissue characterization make it well suited for the study of patients with cardiac diseases. we describe a multi-modality imaging evaluation of a 45-year-old man who experienced a near drowning event during swimming. we underline the unique capability of ti...

further to our recently published findings, we have completed the analysis of our second year of prehospital data collection for the same service. we wish to expedite the availability of this data to clinicians, researchers and policy makers in the region. our 2015/2016 out-of-hospital cardiac arrest (ohca) data displayed the following demographic results: 514 ohca resuscitation attempts were a...

background: tramadol is a widely used centrally acting opioid analgesic and due to its ease of access in iran as an over-the- counter drug, reported cases of intoxication are rising. case: a 19-year-old male who was referred to our center, noor hospital, isfahan university of medical sciences, isfahan, iran, because of confusion, ataxia, agitation and an episode of seizure, followed by intentio...