Publications by authors named "Ariel I"

In this article we seek to examine what we might learn about the therapist/psychoanalyst's function as selfobject by examining the relationship between the "vocal persona" and the "instrumental persona" in the art song. The comparison was born out of our own life partnership as a therapist, currently studying in a psychoanalytic-Buddhist training program that stresses the presence of the therapist/psychoanalyst as selfobject; and a collaborative pianist who instructs and performs with singers onstage. The concept of selfobject has offered a compelling and fruitful analogy.

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Article Synopsis
  • A brief hypercapnic challenge during non-invasive BOLD-MRI imaging can detect acute placental hypoperfusion and reveal fetal brain sparing effects, proposing a new method to differentiate between normal and compromised pregnancies.
  • Eighteen pregnant ICR mice were tested under different oxygen conditions, and BOLD-MRI showed a significant reduction in signal for various organs in normoxic mice during hypercapnia, indicating impaired placental function.
  • The study found that both early- and late-onset hypoxia led to decreased growth and increased fetal neuroapoptosis, particularly in early-onset cases, highlighting the potential of BOLD-MRI to assess chronic fetal health issues related to placental insufficiency.
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Diverse populations worldwide are differentially affected by coronavirus disease 2019 (COVID-19). While socioeconomic background has been studied extensively, little is known about the genetic variation underlying this phenomenon. This study is aimed at examining the genetic basis behind the great discrepancies among diverse ethnic groups in terms of COVID-19 susceptibility for viral infection, disease prognosis, and mortality.

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Introduction: RBFOX2, an RNA-binding protein, controls tissue-specific alternative splicing of exons in diverse processes of development. The progenitor cytotrophoblast of the human placenta differentiates into either the syncytiotrophoblast, formed via cell fusion, or the invasive extravillous trophoblast lineage. The placenta affords a singular system where a role for RBFOX2 in both cell invasion and cell fusion may be studied.

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Objectives: Corin is a protease that converts pro-atrial natriuretic peptide (pro-ANP) to ANP. While the involvement of ANP in the cardiovascular regulation is well established, there is increasing evidence that the pregnant uterus produces ANP, which promotes spiral artery remodeling. The present study examines the alterations in corin and PCSK6, a key enzyme in the conversion of pro-corin to corin, in the placenta of hyperinsulinemic dams (HD) featuring pregnancy-induced hypertension (PIH).

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A comprehensive study of unusual cases of placental pathology may provide insight into mechanisms of normal human fertilization and early embryonic development by examining the exception to the rule. A gravida three para two 39-year-old woman was monitored by ultrasound from 16 weeks of gestation for cystic placenta. A female newborn was born at 36 weeks gestation.

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Background: The emergence of electronic nicotine delivery systems (ENDS, or "e-cigarettes") has resulted in nicotine and tobacco scientists committing increased resources to studying these products. Despite this surge of research on various topics related to e-cigarettes, it is important to characterize the evolving e-cigarette research landscape as a way to identify important future research directions. The purpose of this review was to broadly categorize published scholarly work on e-cigarettes using a structured, multi-level coding scheme.

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Introduction: Rat endovascular trophoblasts (EVasT) express smooth muscle (SM) proteins and contract ex vivo upon exposure to endothelin-1 (ET1) via receptors A and B (ETA, ETB). Presently, we investigated the EVasT response to NOS inhibition (N-Nitro-l-arginine methyl ester hydrochloride, l-NAME), and potentiation by NO donor [S-Nitroso-N-Acetyl-D,l-Penicillamine (SNAP)] following KCl precontraction. M&M: Luminal surface area (LSA) of remodeled spiral artery rings (SAR) devoid of SM was measured ex vivo upon exposure to l-NAME alone; l-NAME and ET1 representing the combined contractile effect of both ET1 receptors; l-NAME with ET1 and ETA antagonist, representing the isolated contractile effect via ETB.

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To increase colonoscopy competence in ambiguous situations (e.g. the existence of flat polyps), an explicit in situ (at real time) diagnosis at the molecular level is required.

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Context: -The value of placental examination in investigations of adverse pregnancy outcomes may be compromised by sampling and definition differences between laboratories.

Objective: -To establish an agreed-upon protocol for sampling the placenta, and for diagnostic criteria for placental lesions. Recommendations would cover reporting placentas in tertiary centers as well as in community hospitals and district general hospitals, and are also relevant to the scientific research community.

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In our previous study we proposed the use of chemical penetration enhancers for noninvasive detection of fetus abnormalities that can also be utilized for direct fetal drug delivery. In an attempt to further increase the mass transport rate across the amniotic membrane, thus shortening the procedure and improving the applicability of the proposed procedure, the effect and mechanism of combining ultrasound exposure with chemical penetration enhancers' application were assessed. The combined effect was evaluated in vitro on post-delivery human amniotic membrane and ex vivo on rat's whole amniotic sac.

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Introduction: Similarities of the rat to the human placenta make rat pregnancy models relevant to the study of human gestational diseases. Understanding of species differences is necessary to extrapolate from animal models to humans. We observed alpha-smooth muscle actin (αSMA) expression in rat endovascular trophoblasts (EVasT) and investigated the spatial and temporal expression of smooth muscle (SM) proteins and their potential function in remodeled spiral artery.

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The multinucleate syncytiotrophoblast of the human placenta is formed by fusion of the underlying cytotrophoblast progenitor cells. The large surface area of the syncytiotrophoblast is necessary for transport functions while it also serves as the site of synthesis of hormones and steroids. Studies of syncytiotrophoblast transcription are puzzling, demonstrating that many of the nuclei in the multinucleated syncytium are transcriptionally inactive.

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Article Synopsis
  • Long non-coding RNAs (lncRNA), like CCAT1, play important roles in gene expression and cancer progression, but their mechanisms are not fully understood.
  • The study tested a CCAT1-specific peptide nucleic acid (PNA) probe for detecting colorectal cancer (CRC) in various samples, showing strong fluorescence and cell uptake.
  • Results indicated that the TO-PNA-MB probe can effectively identify CCAT1 in human CRC specimens, suggesting its potential for real-time imaging and distinguishing between benign and malignant tumors during surgery.
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Real time detection of biomarkers at the mucosal level is imperative for the prevention and efficient treatment of colorectal cancer. Cationized polyacrylamide (CPAA) with increasing charge densities was prepared by radical polymerization of acrylamide and different mol% ratios of N-acryloyl, N'-(tert-butyl-carbonyl) diaminoethane. The NIR fluorophore derivative of IR-783, IR-783-S-Ph-COOH, was attached to the CPAA to give CPAA-783.

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The configuration and activation of memory networks have been theorized as mechanisms that underlie the often observed link between alcohol expectancies and drinking. A key component of this network is the expectancy "drunk." The memory network configuration of "drunk" was mapped by using cluster analysis of data gathered from the paired-similarities task (PST) and the Alcohol Expectancy Multi-Axial Assessment (AEMAX).

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Human cytomegalovirus (HCMV) is the leading cause of congenital infection, associated with severe birth defects and intrauterine growth retardation. The mechanism of HCMV transmission via the maternal-fetal interface is largely unknown, and there are no animal models for HCMV. The initial stages of infection are believed to occur in the maternal decidua.

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Background: Exogenous hyperisulinemia causes pregnancy, induced hypertension and intrauterine growth restriction (IUGR) in pregnant rats. Hyperinsulinemia may increase production of endothelin-1 (ET-1), produced by sequential proteolysis of the big endothelin by the endothelin-converting enzyme (ECE)-1, the expression of which is examined here in the placenta, kidney, heart, and liver.

Methods: Rats were rendered hyperinsulinemic by subcutaneous insulin pellet, mated and followed to the twenty-first day of pregnancy.

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Objective: To study the association between placenta accreta (PA) and in vitro fertilisation (IVF) pregnancies.

Design: Retrospective chart review.

Setting: Tertiary care centre in Jerusalem, Israel.

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Background: Although thyroid nodules are common and diagnosed in over 5% of the adult population, only 5% harbor malignancy. Patients with clinically suspicious thyroid nodules need to undergo fine-needle aspiration biopsy (FNAB). The main limitation of FNAB remains indeterminate cytopathology.

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Background: Multifocality is an important factor when recommending surgery for papillary thyroid cancer (PTC). The aim of this study is to assess the incidence and characterize the spread pattern of multifocal PTC (mPTC) in patients undergoing total thyroidectomy.

Methods: All thyroidectomies performed between 2003 and 2008 were reviewed identifying 289 patients.

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Serum amyloid A (SAA) is an acute phase protein which is expressed primarily in the liver as a part of the systemic response to various injuries and inflammatory stimuli; its expression in ovarian tumors has not been described. Here, we investigated the expression of SAA in human benign and malignant ovarian epithelial tumors. Non-radioactive in situ hybridization applied on ovarian paraffin tissue sections revealed mostly negative SAA mRNA expression in normal surface epithelium.

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Nitric oxide synthase (NOS) plays an important role in hypertensive disorders of pregnancy. In the context of the known association between hyperinsulinemia and hypertension, we studied the expression of the 3 isoforms of NOS (neuronal-nNOS, inducible-iNOS, and endothelial-eNOS) in the placenta and implantation site of our insulin-induced intrauterine growth restriction (IUGR) rat model in which the normal gestational blood pressure decline is abrogated. The fetuses of hyperinsulinemic dams were significantly smaller than those of normal pregnant dams (male fetal weight=4.

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Objective: To identify how treatment processes are related to functional outcomes for patients seeking treatment for musculoskeletal impairments while controlling for demographic and health characteristics at intake.

Design: Prospective, observational cohort study. Treatment processes were not altered.

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Background: Fine needle aspiration is the main diagnostic tool used to assess thyroid nodules.

Objectives: To correlate FNA cytology results with surgical pathological findings in two teaching medical centers across the Atlantic.

Methods: We retrospectively identified 484 patients at Hadassah Hebrew University Medical Center, Jerusalem and Mount Sinai Hospital, New York, by means of both preoperative FNA cytology and a final histopathological report.

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