Publications by authors named "Amit Ovental"

Background: In-utero phthalate exposure was shown to be associated with shortened anogenital distance (AGD) in male newborns, but findings among female are inconsistent. While phthalate exposure among pregnant women in Israel is widespread, no study has examined the association with offspring AGD. The objective of the current study was to investigate the association between maternal phthalates urinary concentration and offspring AGD at time of delivery among a birth cohort in Israel.

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Polychlorinated biphenyls (PCBs) are persistent organic pollutants banned for use worldwide. Due to their biodegradation resistance, they accumulate along the food chain and in the environment. Maternal exposure to PCBs may affect the fetus and the infant.

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Objectives: Reports on neonatal morbidity (NM) among refugees in developed countries remain inconsistent. We aimed to compare NM among infants of African refugees in Israel to the native population based on a large population sample.

Design: A case-control study.

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Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants found in human tissues. PCBs can be transferred through the placenta and may disrupt the maternal thyroid homeostasis, and affect fetal thyroid hormone production. Several studies have shown that intrauterine exposure to PCBs might be associated with abnormal levels of thyroid hormones in mothers and their offspring.

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Objective: The etiology of anemia in premature neonates is multifactorial and may involve anemia of inflammation mediated by hepcidin. Hepcidin expression is suppressed by vitamin D. We aimed to investigate the interrelationship between hepcidin, anemia, and vitamin D status in preterm infants.

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Background: We have recently showed that Wolfgang Amadeus Mozart's music significantly lowers resting energy expenditure (REE) in preterm infants. Whether or not this effect is specific to Mozart is unknown.

Objectives: To study whether familiar ("ethnic") music has the same effect on REE in preterm infants as music by Mozart.

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Objective: To describe the containment of a widespread silent outbreak of vancomycin-resistant Enterococcus faecium (VRE-fm) in the Tel-Aviv Medical Center (TASMC) neonatal intensive care unit (NICU).

Methods: Setting - an NICU, participants - 49 cases of VRE-fm-colonized neonatal inpatients.

Results: A newborn was transferred from the TASMC NICU to another hospital and screened positive for VRE-fm upon arrival.

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Polychlorinated Biphenyls (PCBs) are widespread environmental contaminants. PCBs have endocrine disrupting properties which raises concerns regarding their effect on the developing fetus. This study aimed to examine the association between prenatal exposure to PCBs and anogenital distance (AGD) in newborns.

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The aim of the study is to compare the effect of very advanced maternal age (≥45 years) on maternal and neonatal outcomes of twin and singleton pregnancies. This retrospective cohort study included women ≥ 45 years of age who gave birth to twins. Each was randomly matched to two women ≥ 45 years of age who gave birth to singletons within 7 days of the study subject.

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Background: Israel is a country with a sunny climate; however, vitamin D deficiency and insufficiency are common findings in certain populations whose exposure to sunlight is limited. Medical residency is known for long indoor working hours, thus theoretically limiting the opportunities for sun exposure.

Objectives: To evaluate whether the vitamin D status among residents in a single medical center in Tel Aviv is below the normal range.

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Background: Prematurity is an important risk factor for the fulminate form of neonatal enteroviral infection. Pulmonary hemorrhage is a morbid complication that should be anticipated and managed aggressively due to its fatal outcome.

Objective: To emphasize the significance of pulmonary hemorrhage as a complication of severe enterovirus infection in preterm neonates.

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Background: Little is known about circadian variations of macronutrients content of expressed preterm human milk (HM). This study evaluated diurnal variations of macronutrients and energy content of preterm HM over the first 7 weeks of lactation and tested the hypothesis that values obtained during a morning sample are predictive of those obtained from an evening sample.

Materials And Methods: Expressed HM was obtained from 32 mothers of preterm infants (26-33 weeks in gestational age), who routinely expressed all their milk every 3 hours from the beginning of the second to the seventh week after delivery.

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Objective: This study aimed to evaluate the effect of milk expression method (manual expression versus electric pump) on the composition of breastmilk.

Study Design: Data on 21 mothers of 21 newborns 48-72 hours postdelivery were collected and analyzed. The women were randomly assigned to express breastmilk manually followed by pump, or in reverse order.

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Objective: The aim of the current study was to determine whether secular changes have occurred in the breastfeeding literature, in terms of number and type of yearly published articles and impact factor of journals publishing these articles.

Research Design And Setting: In order to evaluate all Medline articles related to breastfeeding, we used the Internet URL www.ncbi.

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We present a 5-year-old boy with multiple hematomas associated with chronic cholestasis. A week before admission he suffered minor trauma at day care. The next day he complained of trunk and limb pain and orthopedic consultation, including leg x-rays, revealed no abnormalities.

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The objective of the study is to examine the assumption that a process of hemolysis plays a role in anemia of acute infection in children. The study was comprised of febrile pediatric patients, who had a positive blood or urine culture. Complete blood count measures were compared between hospitalization and prehospitalization or posthospitalization values.

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