to determine easily identifiable congenital anomalies (ca) prevalence and risk factors in the first 24 hours of life in a cross-sectional study we assessed 2291 live born neonates at four teaching hospitals from september 1999 until march 2000 in the south of tehran. data were collected by a structured form which contained neonatal characters including sex, gestational age, birth weight, histor...

Background: Most drug overdoses are due to suicidal attempts. This study was designed to analyze the risks and risk factors of poisoned patients with repeated suicidal attempt in Iran. Methods: This case-control study was conducted at Loghman Hakim Hospital, Tehran, Iran, during April to May 2008. Eighty-seven patients who were admitted due to drug overdose with loss of consciousness were enrol...

Background & Aims: Detection of maternal risk factors associated with neonatal mortality helps to identify high-risk infants and prevent neonatal death. It can also contribute to the design more effective prenatal care. This study was performed aiming to evaluate the maternal risk factors associated with mortality in preterm infants in Mashhad Ghaem Hospital, Iran, during 2009-2014. Methods: Th...

Background: Nowadays, gamete and embryo donation is applied as effective process in treatment infertility problems. In order to participate in the process of donation, donors should complete an extensive questionnaire that details their personal and family medical history. Included in this questionnaire should be a detailed sexual history, substance abuse history, history of family disease, and...

Background & Aim: The treatment of Parasagittal Meningioma (PSM) is always a challenge, especially when the tumor has already invaded the critical structures like venous sinuses. This study aims at evaluating the outcomes of Gamma Knife Radiosurgery (GKRS) in patients with PSM. Methods and Materials/Patients: In this descriptive retrospective study, we reviewed the medical records of 61 patien...

Natural decision-making often involves extended decision sequences in response to variable stimuli with complex structure. As an example, many animals follow odor plumes to locate food sources or mates, but turbulence breaks up the advected odor signal into intermittent filaments and puffs. This scenario provides an opportunity to ask how animals use sparse, instantaneous, and stochastic signal...

We investigated the homeostatic behavior of hematopoietic stem and progenitor cells (HSPCs) temporally defined according to their divisional histories using an HSPC-specific GFP label-retaining system. We show that homeostatic hematopoietic stem cells (HSCs) lose repopulating potential after limited cell divisions. Once HSCs exit dormancy and accrue divisions, they also progressively lose the a...

RECENTL Y we reported that. in human liver transplantation, a preservation period of greater than 20 hours caused the rate of graft failure to increase nonlinearly.l Even with University of Wisconsin (UW) solution. there is a finite limit to the permissible time of cold storage of livers. In this study, we investigated whether microcirculatory disturbance during and after preservation is correl...

OBJECTIVE To examine ethnic differences in observed parenting and child behavior and the moderating effects of ethnicity on the relationship between treatment and parent and child behavior. METHOD Observations of 508 children with ADHD (ages 7-9) and their caregivers, collected during the Multimodal Treatment Study of ADHD, were analyzed using univariate and mixed-model ANOVAs. RESULTS Alth...

U M LTIORGAN harvesting for individual organ transplantation is well defined according to the principles of Starzl. However, some pancreatic transplant surgeons believe the pancreas should not suffer hyperperfusion as occurs in multiorgan harvesting. This is in conflict with the need of all donor organs for transplantation and specially when multivisceral transplantation is planned. We believe ...