Survival and development of human embryos was compared following slow cooling versus vitrification involving more than 13,000 vitrified embryos. In addition, the efficacy of an open system, the Cryotop, and a closed vitrification system, the CryoTip(trade mark), were compared using human blastocysts. One hundred percent of vitrified human pronuclear stage embryos survived and 52% developed to b...

Abstract   Zinc is one of the  essential elements of body which has an important role in natural growth, development, and many biological performances. Zinc deficiency is a major health problem and pregnant women are at high risk. 82% of pregnant women worldwide suffer from zinc deficiency. Zinc deficiency during pregnancy has dangerous and irreparable effects such as growth impairment, spontan...

background: the cryopreservation of human oocyte would make a significant contribution to infertility treatment, such as using it for oocyte donation and for patients a bout to lose ovarian function due to surgery or chemotherapy. despite of using standard freezing straws and cryovials or even open pulled straws, only a few successful pregnancies have been arisen from cryopreserved human oocyte...

background: acute myeloid leukemia (aml) is known as one of the most common leukemia among adults. environmental and different genetic factors affect disease process, prognosis and treatment. among different genetic factors npm1, flt3, mll and baalc genes are the most effective on patient's survival rate. the aim of this study was to assess amount of baalc gene expression in aml patients, and i...

background: intracranial lesions of the pituitary gland are common pituitary adenomas, accounting for 6-10% of all symptomatic intracranial tumors. in this retrospective study, the clinicopathologic features and survival rate of pituitary adenomas were evaluated. methods: the present retrospective study was conducted on 83 patients with pituitary adenomas, referring to radiation oncology depart...

purpose : to describe the survival characteristics and prognostic factors of patients with retinoblastoma in a referral center in iran methods : from medical records, we retrospectively analyzed the data of 139 consecutive children diagnosed in our hospital between 1991 and 2001 as having retinoblastoma. information on gender, laterality, age at diagnosis, presenting signs, tumor staging, treat...

purpose: to investigate the efficacy of topical cyclosporine a 2% in treating and preventing recurrent graft rejection episodes after penetrating keratoplasty (pkp) in patients with history of previous rejection episodes. methods: in this clinical trial, eligible pkp patients were randomly given topical cyclosporine a 2% or placebo in addition to a standard corticosteroid regimen for an episode...

Background: Controlled ovarian stimulation (COS) has been shown to advance endometrial maturation and affect adversely implantation in assisted reproduction technology (ART) cycles. It has been reported that there is a better embryo-endometrium synchrony in frozenthawed embryo transfer (FET) cycles than fresh embryo transfer (ET) cycles. The Background of this study was to compare ongoing pregn...

background: this study aimed to assess the incidence and survival rates of neonates weighing less than 2500g for duration of the first 28 days in an iranian community. methods: in this prospective longitudinal study, all neonates with birth weight less than 2500g were selected from the list of all neonates born in the only public-sector referral hospital, for a six months period. the weight of ...