Publications by authors named "Hagith Yonath"

Background: Bleeding complications following intramuscular (IM) injections are generally considered rare with reported incidence of 0.06%. However, evidence on safety of IM injections among anticoagulated hospitalized patients is lacking.

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Background: Over the years, reports have associated fluoroquinolones (FQ) with seizures. The incidence and whether FQ compared to non-epileptogenic antibiotic are associated with increased risk of seizures has yet to be examined.

Methods: A retrospective observational study of hospitalized patients treated with FQ (ofloxacin, ciprofloxacin, levofloxacin, moxifloxacin) or macrolides (MA: azithromycin or roxithromycin) between January 2009 and January 2021 in a large tertiary academic medical centre.

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Genetic workup is becoming increasingly common in the clinical assessment of neurological disorders. We evaluated its yield among middle-aged and elderly neurological patients, in a real-world context. This retrospective study included 368 consecutive Israeli patients aged 50 years and older (202 [54.

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Congenital diaphragmatic hernia (CDH) is a relatively common and genetically heterogeneous structural birth defect associated with high mortality and morbidity. We describe eight unrelated families with an X-linked condition characterized by diaphragm defects, variable anterior body-wall anomalies, and/or facial dysmorphism. Using linkage analysis and exome or genome sequencing, we found that missense variants in plastin 3 (PLS3), a gene encoding an actin bundling protein, co-segregate with disease in all families.

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Article Synopsis
  • SRSF1 is a protein that plays a crucial role in mRNA processing and is essential for proper brain development; its complete loss is fatal during embryonic stages in mice.
  • Researchers identified 17 individuals with neurodevelopmental disorders (NDD) who have specific genetic changes in the SRSF1 gene, which lead to developmental delays, intellectual disability, and other health issues.
  • Advanced analysis techniques demonstrated that most genetic variants linked to SRSF1 result in a loss of its function, causing syndromic NDD due to impaired splicing activity.
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The transcription factor GATA2 plays a key role in the survival and self-renewal of hematopoietic stem and progenitor cells. Autosomal dominant variants in cause a broad spectrum of heterogeneous phenotypes. Here, we present our experience with GATA2 deficiency in a retrospective multicenter analysis of computerized medical records of adult patients (age ≥18 years) treated between 2018 and 2022 at Shaare Zedek Medical Center in Jerusalem and Sheba Tel-Hashomer Medical Center in Ramat Gan, Israel.

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Ribosomes, the cellular organelles translating the genetic code to proteins, are assemblies of RNA chains and many proteins (RPs) arranged in precise fine-tuned interwoven structures. Mutated ribosomal genes cause ribosomopathies, including Diamond Blackfan anemia (DBA, a rare heterogeneous red-cell aplasia connected to ribosome malfunction) or failed biogenesis. Combined bioinformatical, structural, and predictive analyses of potential consequences of possibly expressed mutations in eS19, the protein product of the highly mutated RPS19, suggest that mutations in its exposed surface could alter its positioning during assembly and consequently prevent biogenesis, implying a natural selective strategy to avoid malfunctions in ribosome assembly.

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Exome sequencing (ES) is an important diagnostic tool for individuals with neurodevelopmental disorders (NDD) and/or multiple congenital anomalies (MCA). However, the cost of ES limits the test's accessibility for many patients. We evaluated the yield of publicly funded clinical ES, performed at a tertiary center in Israel, over a 3-year period (2018-2020).

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Objective: We investigated the detection rate of clinically significant chromosomal microarray analysis (CMA) results in pregnancies with sonographic diagnosis of fetal corpus callosum anomalies (CCA) or posterior fossa anomalies (PFA).

Methods: All CMA tests in pregnancies with CCA or PFA performed between January 2015 and June 2020 were retrospectively evaluated from the Israeli Ministry of Health database. The rate of CMA with clinically significant (pathogenic or likely pathogenic) findings was calculated and compared to a local Israeli cohort of 5,541 pregnancies with normal ultrasound.

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Background: Filamin C is a cytoskeletal protein expressed in cardiac cells. Nonsense variations in the filamin C gene (FLNC) were associated with dilated and arrhythmogenic cardiomyopathies.

Methods And Results: We identified an intronic variation in FLNC gene (c.

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Clinically amyopathic dermatomyositis is an uncommon autoimmune disorder in the Middle East. The clinical picture of clinically amyopathic dermatomyositis is characterized mainly by pulmonary and dermatological manifestations. Occasionally muscle symptoms are observed as well.

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Introduction: Ventricular septal defect (VSD) represents the most common type of congenital cardiac anomaly, affecting more than 1 in 300 live births. The objective of this study was to examine the incidence and nature of abnormal chromosomal microarray analysis (CMA) results in a large cohort of pregnancies with VSD.

Material And Methods: Data acquisition was performed through the Ministry of Health computerized database.

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Hantavirus pulmonary syndrome (HPS) is a rare and sometimes fatal respiratory disease in humans. The infection is acquired mainly through inhalation of aerosolized rodent secretions which serves as the reservoir for the virus. HPS cases are mostly reported from the American continent.

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Background: Paraneoplastic neurological syndromes (PNS) are a group of syndromes that affect the central and peripheral neuromuscular system in association with cancer. Specific antibodies may assist in the diagnosis of PNS. The antibodies tested can be classified into those directed against intracellular neuronal proteins ("well characterized" PNS: Hu, Yo, RI, CV2, amphiphysin, Ma1, Ma2) and those directed against neural surface antigens (autoimmune encephalitis syndromes: NMDA, AMPA, LGI1, CASPR2, GABAR).

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Objective: To examine chromosomal microarray analysis results in pregnancies with various ultrasonographic anomalies and to characterize the copy number variants in diverse fetal phenotypes.

Methods: We retrospectively examined chromosomal microarray analyses of amniocenteses performed nationwide as a result of fetal ultrasonographic anomalies (structural defects, fetal growth restriction, and polyhydramnios) between January 2013 and September 2017. The rate of abnormal chromosomal microarray findings was compared between the different phenotypes and with a previously described control population of 15,225 pregnancies with normal ultrasonographic findings.

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Studies are emerging alluding to the role of intestinal microbiome in the pathogenesis of diseases. Intestinal microbiome is susceptible to the influence of environmental factors such as smoking, and recent studies have indicated microbiome alterations in smokers. The aim of the study was to review the literature regarding the impact of smoking on the intestinal microbiome.

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Permanent cardiac pacing is the only effective solution for patients with symptomatic bradycardia and heart block. About 10% of patients undergoing implantation of the conventional pacing system develop complications related to the subcutaneous pocket or the leads and in pediatric patients lead problems may rise in up to 30% of the patients. The leadless pacemaker devices were developed in order to minimize some of those complications.

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Congenital anomalies of the kidney and urinary tract (CAKUT) are the most common cause of CKD in the first three decades of life. However, for most patients with CAKUT, the causative mutation remains unknown. We identified a kindred with an autosomal dominant form of CAKUT.

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Background: Filamin C (encoded by the FLNC gene) is essential for sarcomere attachment to the plasmatic membrane. FLNC mutations have been associated with myofibrillar myopathies, and cardiac involvement has been reported in some carriers. Accordingly, since 2012, the authors have included FLNC in the genetic screening of patients with inherited cardiomyopathies and sudden death.

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Objective: The linkage between 17q12 microdeletions, renal anomalies, and higher risk for neurodevelopmental disorders is well described in the literature. The current study presents prenatal diagnosis of normal-sized fetal hyperechogenic kidneys leading to the diagnosis of 17q12 deletion syndrome and autism spectrum disorder.

Methods: Over a period of 9 years in a single referral center, seven fetuses were diagnosed with hyperechogenic renal parenchyma and were followed up prospectively.

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Rare diseases are chronic, progressive genetic disorders, which affect around 6-8% of the general population, mainly children. Therefore, in Israel approximately 500,000 people are probably affected by a rare disease. In this article, we review some of the issues pertaining to rare diseases, such as the need for accurate diagnosis which is necessary not only for specific care and treatment but also for informed family planning.

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We have developed a collagen-mRNA platform for controllable protein production that is intended to be less prone to the problems associated with commonly used mRNA therapy as well as with collagen skin-healing procedures. A collagen mimic was constructed according to a recombinant method and was used as scaffold for translating mRNA chains into proteins. Cysteines were genetically inserted into the collagen chain at positions allowing efficient ribosome translation activity while minimizing mRNA misfolding and degradation.

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Introduction: In order to investigate the dynamics of genomic alterations that occur at different developmental stages in vitro, we examined the chromosome content of human preimplantation embryos by molecular-cytogenetic techniques at the single-cell level, up to 13 days post fertilization.

Methods: The embryos were genetically analyzed several times during their development in culture; each embryo was first analyzed by FISH at 'Day 3' post fertilization, than during its growth in vitro and the third analysis was performed at development arrest, then the entire blastocyst was analyzed by comparative genomic hybridization (CGH/aCGH).

Results: We found that while on 'Day 3' only 31% of the embryos were detected as normal, on 'Day 5-6', 44% of the embryos were classified as normal and on 'Day 7', 57% were normal.

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