1,129 results match your criteria: "Felsenstein Medical Research Center.[Affiliation]"

Introduction: Microcephaly, characterized by abnormal head growth, can often serve as an initial indicator of congenital, genetic, or acquired disorders. In this study, we sought to evaluate the effectiveness of chromosomal microarray (CMA) testing in detecting abnormalities in both prenatal and postnatal cases of microcephaly.

Materials And Methods: CMA Testing: We conducted CMA testing on 87 prenatally-detected microcephaly cases and 742 postnatal cases at a single laboratory.

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Background: To evaluate the safety and efficacy of the Minimally Invasive Micro Sclerotomy (MIMS) procedure in the management of uncontrolled open-angle glaucoma.

Methods: A prospective, open-label, single-arm clinical evaluation with intra-subject comparisons performed at the Ophthalmologic Center after S.V.

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Objectives: 22q11.2 deletion is the most prominent risk factor for schizophrenia (SZ). The aim of the present study was to identify unique transcriptome profile for 22q11.

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Multimodal stimulation screens reveal unique and shared genes limiting T cell fitness.

Cancer Cell

April 2024

Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands; Department of Pathology, VU University Amsterdam, 1081 HV Amsterdam, the Netherlands. Electronic address:

Genes limiting T cell antitumor activity may serve as therapeutic targets. It has not been systematically studied whether there are regulators that uniquely or broadly contribute to T cell fitness. We perform genome-scale CRISPR-Cas9 knockout screens in primary CD8 T cells to uncover genes negatively impacting fitness upon three modes of stimulation: (1) intense, triggering activation-induced cell death (AICD); (2) acute, triggering expansion; (3) chronic, causing dysfunction.

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Objectives: To investigate the role of gut microbiota (GM) in pathogenesis of idiopathic short stature (ISS) by comparing GM of ISS children to their normal-height siblings.

Methods: This case-control study, conducted at the Schneider Children's Medical Center's Institute for Endocrinology and Diabetes between 4/2018-11/2020, involved 30 pairs of healthy pre-pubertal siblings aged 3-10 years, each comprising one sibling with ISS and one with normal height. Outcome measures from fecal analysis of both siblings included GM composition analyzed by 16S rRNA sequencing, fecal metabolomics, and monitoring the growth of germ-free (GF) mice after fecal transplantation.

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Article Synopsis
  • The study reviews disease-causing mutations in the BEST1 gene, correlates genotypes with phenotypes, and estimates the prevalence of Best disease in the Israeli population.
  • Over 134 patients from nine medical centers were analyzed, revealing a prevalence of 1 in 127,000, with higher rates among Arab Muslims compared to Jews.
  • Genetic testing is essential for diagnosing Best disease, as many mutations lead to autosomal-dominant inheritance and are concentrated in critical areas of the BEST1 protein that affect its normal function.*
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Efficacy of therapy by MK-28 PERK activation in the Huntington's disease R6/2 mouse model.

Neurotherapeutics

March 2024

The Shmunis School of Biomedicine and Cancer Research, George Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel; Department of Human Molecular Genetics and Biochemistry, Felsenstein Medical Research Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel. Electronic address:

There is currently no disease-modifying therapy for Huntington's disease (HD). We recently described a small molecule, MK-28, which restored homeostasis in HD models by specifically activating PKR-like ER kinase (PERK). This activation boosts the unfolded protein response (UPR), thereby reducing endoplasmic reticulum (ER) stress, a central cytotoxic mechanism in HD and other neurodegenerative diseases.

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Prevention of Bladder Cancer Recurrence With the Botanical Formula LCS103: A Case Series Study.

Integr Cancer Ther

February 2024

Center for Integrative Complementary Medicine, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.

Despite effective chemotherapy and other available oncology treatments, recurrence rates for non-muscle invasive bladder cancer (NMIBC) remain high, with as many as 60% of patients requiring repeat intravesical treatments with BCG or other agents within a 24-month period. The botanical formula LCS103 has displayed anti-cancer activity on bladder cancer cells, though its clinical efficacy remains to be proven. A consecutive series of 30 patients with bladder cancer was examined retrospectively, of which a cohort of 20 patients (18 with NMIBC, 2 with metastatic disease) was treated with LCS103 for between 14 months and 16 years, in addition to their conventional oncology care.

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Background: Pediatric immune thrombocytopenia (ITP) may precede systemic autoimmune disorders. In adolescent patients with ITP, routine screening for systemic lupus erythematosus (SLE) may be performed by testing for antinuclear antibody (ANA) titer. Hydroxychloroquine (HCQ) is a safe and effective immunomodulatory drug in patients with SLE but rarely used in ITP.

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Background: Erythropoietin-producing hepatocellular (EPH) receptors are the largest known family of receptor tyrosine kinases characterized in humans. These proteins are involved in tissue organization, synaptic plasticity, vascular development and the progression of various diseases including cancer. The Erythropoietin-producing hepatocellular receptor tyrosine kinase member EphB6 is a pseudokinase which has not attracted an equivalent amount of interest as its enzymatically-active counterparts.

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Tissue markers may predict treatment response to antitumor necrosis factor-α agents in children with Crohn's disease.

J Pediatr Gastroenterol Nutr

March 2024

Schneider Children's Medical Center of Israel, Institute of Gastroenterology, Nutrition and Liver Diseases, Petah Tikva, Israel.

Objectives: Patients with moderate-severe Crohn's disease (CD) who are treated with antitumor necrosis factor alpha (TNF-α) agents may be subjected to primary nonresponse or partial response. We aimed to identify tissue markers that may predict response to these agents.

Methods: Pediatric patients (6-18 years) with either ileal or ileo-colonic CD who were treated with anti-TNF-α were stratified into three different groups based on their overall response to therapy at the end of induction including clinical and laboratory parameters (group 1-full responders [FR], group 2-partial responders [PR], group 3-nonresponders [NR]).

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Background: Chromosomal-microarray-analysis (CMA) may reveal susceptibility-loci (SL) of varied penetrance for autism-spectrum-disorder (ASD) and other neurodevelopmental conditions. Attitudes of women/parents to disclosure of SL during pregnancy are understudied.

Methods: A multiple-choice questionnaire was distributed to postpartum women.

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Founder pathogenic variants (PVs) are prevalent in Israel. This study investigated the current practice of offering cancer patients two-step genetic testing, starting with targeted testing for recurring founder PVs, followed, if negative, by next-generation sequencing. A total of 2128 subjects with cancer or a positive family history underwent oncogenetic testing with a panel of 51 recurring PVs at a tertiary medical center in March 2020-January 2023.

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Although the dynamics of telomeres during the life expectancy of normal cells has been extensively studied, there are still some unresolved issues regarding this research field. For example, the conditions required for telomere shortening leading to malignant transformations are not fully understood. In this work, we mass analyzed DNA of normal and cancer cells for comparing telomere isotopic compositions of white blood cells and cancer cells.

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Background: In order to proliferate indefinitely, all tumors require a telomere maintenance mechanism. The expression of human telomerase reverse transcriptase (hTERT) enables telomere maintenance and provides cancer cells with limitless replicative potential. As such, it may serve as an attractive biomarker for oncogenic activity.

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Congenital anomalies of the kidney and urinary tract (CAKUT) are the predominant cause for chronic kidney disease below age 30 years. Many monogenic forms have been discovered due to comprehensive genetic testing like exome sequencing. However, disease-causing variants in known disease-associated genes only explain a proportion of cases.

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[ASPECTS AFFECTING PEDIATRIC OPHTHALMOLOGY AND STRABISMUS PUBLICATION TIMES].

Harefuah

December 2023

Arrow Program for Medical Research Education, Sheba Medical Center, Tel Hashomer, Israel, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel, Goldschlager Eye Institute, Sheba Medical Center, Tel Hashomer, Israel.

Background: To better understand and analyze various aspects of scientific publication, bibliometric data analysis is useful.

Objectives: An analysis of the factors associated with shorter publication times in pediatric ophthalmology and strabismus (POS) between the years 2002 and 2007, compared to 2014 and 2018.

Methods: In this retrospective bibliometric analysis, we analyzed 2,487 articles related to POS from the official websites of 8 preselected ophthalmology journals.

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Psychopharmacology in children and adolescents: unmet needs and opportunities.

Lancet Psychiatry

February 2024

Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, ISCIII, School of Medicine, Universidad Complutense, Madrid, Spain.

Psychopharmacological treatment is an important component of the multimodal intervention approach to treating mental health conditions in children and adolescents. Currently, there are many unmet needs but also opportunities, alongside possible risks to consider, regarding the pharmacological treatment of mental health conditions in children and adolescents. In this Position Paper, we highlight and address these unmet needs and opportunities, including the perspectives of clinicians and researchers from the European College of Neuropsychopharmacology-Child and Adolescent Network, alongside those of experts by lived experience from national and international associations, via a survey involving 644 participants from 13 countries, and of regulators, through representation from the European Medicines Agency.

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Acute optic neuritis treatment lacks standardized protocols. The value of oral prednisone taper (OPT) following intravenous methylprednisolone (IVMP) on visual outcome parameters in optic neuritis (ON) has never been explored. In the present retrospective study, we investigated whether OPT after IVMP affects the structural and functional visual outcomes of inaugural clinically isolated syndrome (CIS)- or multiple sclerosis (MS)-ON.

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Endometrial dating (ED) is the process by which the menstrual cycle day is estimated and is an important tool for the evaluation of uterine status. To date, ED methods remain inaccurate and controversial. We demonstrate how the rise of computerized virtual histology changes the state of affairs and introduce a new ED method.

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Biallelic hypomorphic variants in CAD cause uridine-responsive macrocytic anaemia with elevated haemoglobin-A2.

Br J Haematol

March 2024

Structure of Macromolecular Targets Unit, Instituto de Biomedicina de Valencia (IBV), CSIC, Valencia, Spain.

Biallelic pathogenic variants in CAD, that encode the multienzymatic protein required for de-novo pyrimidine biosynthesis, cause early infantile epileptic encephalopathy-50. This rare disease, characterized by developmental delay, intractable seizures and anaemia, is amenable to treatment with uridine. We present a patient with macrocytic anaemia, elevated haemoglobin-A2 levels, anisocytosis, poikilocytosis and target cells in the blood smear, and mild developmental delay.

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Empowering informed choices: revisiting the discussion on prenatal genetic testing in all pregnancies.

Am J Obstet Gynecol MFM

January 2024

Recanati Genetics Institute, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.

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Background: Real-world data on outcomes of patients with newly diagnosed Crohn's disease (ndCD) is limited. We aimed to assess the achievement of corticosteroid-free clinical remission (CS-free CR) and other therapeutic targets 1 year after diagnosis in a cohort of patients with ndCD treated by a multidisciplinary team (MDT).

Methods: A prospective observational cohort study was conducted on consecutive treatment-naïve adults with ndCD.

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Aims: This study aims to compare the clinical outcome of Descemet membrane endothelial keratoplasty (DMEK) and ultrathin Descemet stripping automated endothelial keratoplasty (UT-DSAEK) in patients with corneal endothelial dysfunction due to Fuchs' endothelial dystrophy or pseudophakic bullous keratopathy.

Methods: We conducted a meta-analysis using a literature search of Embase, PubMed, Cochrane CENTRAL, ClinicalTrials.gov and WHO ICTRP databases.

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