19 results on '"Segev S"'
Search Results
2. Drug shortages in Israel, revisited: a bitter pill to swallow
- Author
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Eyal Schwartzberg, Eli Marom, Alla Vishkautzan, Einat Gorelik, and Segev Shani
- Subjects
Drug shortages ,Regulatory perspectives ,Healthcare system ,Patient access ,Mitigation strategies ,Medicine (General) ,R5-920 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background In 2017, we published an article addressing drug shortages (DS) in Israel, exploring regulatory perspectives, challenges, and potential solutions. Since then, DS remain a significant concern for patients, healthcare providers, and policymakers globally. In this updated article, we revisit the topic, providing new insights, data, and analysis on the current DS landscape in Israel, efforts to mitigate them, and propose strategies to combat this escalating issue. Methods We conducted a comprehensive search of the Israeli Ministry of Health (MOH) DS database, spanning from 2014 to the present. We extracted DS numbers and their reasons. Further searches on the Israeli MOH website, pharmaceutical division archives, and the internet yielded official MOH publications and correspondence regarding regulatory responses to DS from 2017 onwards. Additionally, two specific cases of DS were examined to analyze their handling. Recent activities and publications from the Israeli MOH aimed at reducing DS were also reviewed. Results Between 2014 and 2022, DS surged 2.66-fold. Total DS were 3228; 672 due to commercial reasons, and 2556 to operational reasons (20.5% and 79.5% respectively). The average duration of intermittent DS increased 1.56-fold, from 85 to 133 days. Manufacturers informed the MOH 22 days prior to actual shortage on average. Analyzing 2022's DS (640) by ATC groups, prominent categories included nervous system drugs (18%), drugs acting on the alimentary tract and metabolism (14%), and dermatologicals (11%). Operational DS in 2022 (n = 564) were primarily due to stock delivery delays (38%), stock over-utilization (12%), and raw material shortages (9%). Sixteen official MOH publications on DS were identified from 2017 onwards. Moreover, two high-impact DS case studies were examined. Conclusion Despite routine monitoring by the Israeli MOH and updating the DS policy throughout this period, DS persist, intensifying annually and posing serious health risks. This trend mirrors international patterns, affecting countries globally. In Israel's uniquely structured healthcare system, with its swift stakeholder cooperation and implementation capabilities, more effective DS management is conceivable. We propose ten universally applicable rules to address DS challenges.
- Published
- 2024
- Full Text
- View/download PDF
3. Purcell-enhanced x-ray scintillation.
- Author
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Kurman Y, Lahav N, Schuetz R, Shultzman A, Roques-Carmes C, Lifshits A, Zaken S, Lenkiewicz T, Strassberg R, Be'er O, Bekenstein Y, and Kaminer I
- Abstract
Scintillation materials convert high-energy radiation to optical light through a complex multistage process. The last stage of the process is spontaneous light emission, which usually governs and limits the scintillator emission rate and light yield. For decades, scintillator research focused on developing faster-emitting materials or external photonic coatings for improving light yields. Here, we experimentally demonstrate a fundamentally different approach: enhancing the scintillation rate and yield via the Purcell effect, utilizing optical environment engineering to boost spontaneous emission. This enhancement is universally applicable to any scintillating material and dopant when the material's nanoscale geometry is engineered. We design a thin multilayer nanophotonic scintillator, demonstrating Purcell-enhanced scintillation with 50% enhancement in emission rate and 80% enhancement in light yield. The emission is robust to fabrication disorder, further highlighting its potential for x-ray applications. Our results show prospects for bridging nanophotonics and scintillator science toward reduced radiation dosage and increased resolution for high-energy particle detection.
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- 2024
- Full Text
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4. A tale of two pediatric craniopharyngiomas exemplifying treatment strategies.
- Author
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Gabay S, Kozyrev DA, Roth J, and Constantini S
- Published
- 2024
- Full Text
- View/download PDF
5. Laser interstitial thermal therapy (LITT) for pediatric low-grade glioma-case presentations and lessons learned.
- Author
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Strauss I, Gabay S, and Roth J
- Subjects
- Humans, Child, Female, Male, Retrospective Studies, Adolescent, Child, Preschool, Glioma surgery, Glioma therapy, Glioma diagnostic imaging, Glioma pathology, Brain Neoplasms surgery, Brain Neoplasms diagnostic imaging, Brain Neoplasms therapy, Brain Neoplasms pathology, Laser Therapy methods
- Abstract
Background: The surgical treatment of brain tumors has developed over time, offering customized strategies for patients and their specific lesions. One of the most recent advances in pediatric neuro-oncological surgery is laser interstitial thermal therapy (LITT). However, its effectiveness and indications are still being evaluated. The aim of this work is to review the current literature on LITT for pediatric low-grade gliomas (pLGG) and evaluate our initial results in this context., Methods: We retrospectively reviewed our pediatric neurosurgery database for patients who received LITT treatment between November 2019 and December 2023. We collected data on the indications for LITT, technical issues during the procedure, and clinical and radiological follow-up., Results: Three patients underwent 5 LITT procedures for pLGG. The lesion was thalamo-peduncular in one patient, cingulate in one, and deep parietal in one patient. Two patients had a previous open resection done and were diagnosed with pLGG. One patient underwent a stereotaxic biopsy during the LITT procedure that was non-diagnostic. The same patient underwent a later open resection of the tumor in the cingulate gyrus. There were no surgical complications and all patients were discharged home on the first post-operative day. The follow-up period was between 20 and 40 months. Radiological follow-up showed a progressive reduction of the tumor in patients with LGG., Conclusion: Laser interstitial thermal therapy is a minimally invasive treatment that shows promise in treating deep-seated pLGG in children. The treatment has demonstrated a reduction in tumor volume, and the positive results continue over time. LITT can be used as an alternative treatment for tumors located in areas that are difficult to access surgically or in cases where other standard treatment options have failed., (© 2024. The Author(s).)
- Published
- 2024
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6. Sex-Specific ADNP/NAP (Davunetide) Regulation of Cocaine-Induced Plasticity.
- Author
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Toren Y, Ziv Y, Sragovich S, McKinney RA, Barak S, Shazman S, and Gozes I
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- Animals, Male, Mice, Female, Homeodomain Proteins genetics, Homeodomain Proteins metabolism, Mice, Inbred C57BL, Nucleus Accumbens metabolism, Nucleus Accumbens drug effects, Dendritic Spines drug effects, Dendritic Spines metabolism, Ventral Tegmental Area metabolism, Ventral Tegmental Area drug effects, Oligopeptides, Cocaine pharmacology, Nerve Tissue Proteins genetics, Nerve Tissue Proteins metabolism, Neuronal Plasticity drug effects, Hippocampus metabolism, Hippocampus drug effects
- Abstract
Cocaine use disorder (CUD) is a chronic neuropsychiatric disorder estimated to effect 1-3% of the population. Activity-dependent neuroprotective protein (ADNP) is essential for brain development and functioning, shown to be protective in fetal alcohol syndrome and to regulate alcohol consumption in adult mice. The goal of this study was to characterize the role of ADNP, and its active peptide NAP (NAPVSIPQ), which is also known as davunetide (investigational drug) in mediating cocaine-induced neuroadaptations. Real time PCR was used to test levels of Adnp and Adnp2 in the nucleus accumbens (NAc), ventral tegmental area (VTA), and dorsal hippocampus (DH) of cocaine-treated mice (15 mg/kg). Adnp heterozygous (Adnp
+/- )and wild-type (Adnp+/- ) mice were further tagged with excitatory neuronal membrane-expressing green fluorescent protein (GFP) that allowed for in vivo synaptic quantification. The mice were treated with cocaine (5 injections; 15 mg/kg once every other day) with or without NAP daily injections (0.4 µg/0.1 ml) and sacrificed following the last treatment. We analyzed hippocampal CA1 pyramidal cells from 3D confocal images using the Imaris x64.8.1.2 (Oxford Instruments) software to measure changes in dendritic spine density and morphology. In silico ADNP/NAP/cocaine structural modeling was performed as before. Cocaine decreased Adnp and Adnp2 expression 2 h after injection in the NAc and VTA of male mice, with mRNA levels returning to baseline levels after 24 h. Cocaine further reduced hippocampal spine density, particularly synaptically weaker immature thin and stubby spines, in male Adnp+/+ ) mice while increasing synaptically stronger mature (mushroom) spines in Adnp+/- ) male mice and thin and stubby spines in females. Lastly, we showed that cocaine interacts with ADNP on a zinc finger domain identical to ketamine and adjacent to a NAP-zinc finger interaction site. Our results implicate ADNP in cocaine abuse, further placing the ADNP gene as a key regulator in neuropsychiatric disorders. Ketamine/cocaine and NAP treatment may be interchangeable to some degree, implicating an interaction with adjacent zinc finger motifs on ADNP and suggestive of a potential sex-dependent, non-addictive NAP treatment for CUD., (© 2024. The Author(s).)- Published
- 2024
- Full Text
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7. Association Between Xanthelasma Palpebrarum with Cardiovascular Risk and Dyslipidemia: A Case Control Study.
- Author
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Lustig-Barzelay Y, Kapelushnik N, Goldshtein I, Leshno A, Segev S, Ben-Simon GJ, and Landau-Prat D
- Abstract
Purpose: To determine whether xanthelasma palpebrarum (XP) is associated with dyslipidemia, cardiovascular disease (CVD), and other systemic conditions in a large population., Design: Case-control study conducted at a single tertiary care center., Participants: Individuals who were examined at a medical screening institute from 2001 through 2020., Methods: Medical records were reviewed to extract data on ophthalmic evaluations, blood test results, and systemic diagnoses. Patients identified with XP in at least 1 eye constituted the study group. A control group without XP was established matched by age and sex at a 10:1 ratio to allow robust statistical analysis., Main Outcome Measures: Associations between XP and dyslipidemia and CVD were determined. Lipid profiles and diagnoses of dyslipidemia and CVD were compared between the case and control groups., Results: The database included 35 452 individuals, 24 287 of whom were male (69%), with a mean ± standard deviation age of 52.2 ± 12.2 years. The study population included 203 patients with XP (0.6%) and 2030 matched control participants. The prevalence of dyslipidemia diagnosis was similar between the two groups (42% XP vs. 46% controls, P = 0.29), as were the use rates of statins, fibrates, or other cholesterol-lowering medications (48% XP vs. 47% controls, P = 0.88). Lipid profiles were similar between the groups, including total cholesterol (controls median 187 [IQR, 163-211] vs. XP 192 [166-215], P = 0.093), high-density lipoprotein (controls median 48 [IQR, 41-57] vs. XP 47 [42-57], P = 0.65), low-density lipoprotein (controls median 120 [101-141] vs. XP 125 [104-145], P = 0.17), and triglyceride levels (controls median 111 [81-152] vs. XP 105 [81-139], P = 0.16). The rate of CVD was similar as well (10% control group vs. 8.9% XP group; P = 0.56). The prevalences of related conditions, including hypertension, diabetes mellitus, and history of cerebrovascular accident, were similar between groups (24% control group vs. 23% XP group, 14% control group vs. 10% XP group, and 1.3% control group vs. 1% XP group, respectively; P > 0.05)., Conclusions: Xanthelasma palpebrarum was not associated with increased rates of dyslipidemia or CVD. This questions the extent to which XP serves as an indicative marker for heightened systemic risk., Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article., (Copyright © 2024 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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8. Ordered and disordered regions of the Origin Recognition Complex direct differential in vivo binding at distinct motif sequences.
- Author
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Chappleboim M, Naveh-Tassa S, Carmi M, Levy Y, and Barkai N
- Subjects
- Binding Sites, DNA Replication, DNA, Fungal metabolism, DNA, Fungal chemistry, DNA, Fungal genetics, Mutation, Nucleotide Motifs, Protein Binding, Origin Recognition Complex metabolism, Origin Recognition Complex genetics, Origin Recognition Complex chemistry, Replication Origin, Saccharomyces cerevisiae genetics, Saccharomyces cerevisiae metabolism, Saccharomyces cerevisiae Proteins metabolism, Saccharomyces cerevisiae Proteins genetics, Saccharomyces cerevisiae Proteins chemistry
- Abstract
The Origin Recognition Complex (ORC) seeds replication-fork formation by binding to DNA replication origins, which in budding yeast contain a 17bp DNA motif. High resolution structure of the ORC-DNA complex revealed two base-interacting elements: a disordered basic patch (Orc1-BP4) and an insertion helix (Orc4-IH). To define the ORC elements guiding its DNA binding in vivo, we mapped genomic locations of 38 designed ORC mutants, revealing that different ORC elements guide binding at different sites. At silencing-associated sites lacking the motif, ORC binding and activity were fully explained by a BAH domain. Within replication origins, we reveal two dominating motif variants showing differential binding modes and symmetry: a non-repetitive motif whose binding requires Orc1-BP4 and Orc4-IH, and a repetitive one where another basic patch, Orc1-BP3, can replace Orc4-IH. Disordered basic patches are therefore key for ORC-motif binding in vivo, and we discuss how these conserved, minor-groove interacting elements can guide specific ORC-DNA recognition., (© The Author(s) 2024. Published by Oxford University Press on behalf of Nucleic Acids Research.)
- Published
- 2024
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9. Inhibition of ERK1/2 or CRMP2 Disrupts Alcohol Memory Reconsolidation and Prevents Relapse in Rats.
- Author
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Rahamim N, Liran M, Aronovici C, Flumin H, Gordon T, Urshansky N, and Barak S
- Subjects
- Animals, Male, Rats, Amygdala metabolism, Amygdala drug effects, Ethanol, MAP Kinase Signaling System drug effects, Mechanistic Target of Rapamycin Complex 1 metabolism, Memory drug effects, Phosphatidylinositol 3-Kinases metabolism, Proto-Oncogene Proteins c-akt metabolism, Rats, Wistar, Recurrence, Self Administration, Alcoholism metabolism, Alcoholism drug therapy, Intercellular Signaling Peptides and Proteins metabolism, Memory Consolidation drug effects, Mitogen-Activated Protein Kinase 1 metabolism, Mitogen-Activated Protein Kinase 3 metabolism, Nerve Tissue Proteins metabolism
- Abstract
Relapse to alcohol abuse, often caused by cue-induced alcohol craving, is a major challenge in alcohol addiction treatment. Therefore, disrupting the cue-alcohol memories can suppress relapse. Upon retrieval, memories transiently destabilize before they reconsolidate in a process that requires protein synthesis. Evidence suggests that the mammalian target of rapamycin complex 1 (mTORC1), governing the translation of a subset of dendritic proteins, is crucial for memory reconsolidation. Here, we explored the involvement of two regulatory pathways of mTORC1, phosphoinositide 3-kinase (PI3K)-AKT and extracellular regulated kinase 1/2 (ERK1/2), in the reconsolidation process in a rat (Wistar) model of alcohol self-administration. We found that retrieval of alcohol memories using an odor-taste cue increased ERK1/2 activation in the amygdala, while the PI3K-AKT pathway remained unaffected. Importantly, ERK1/2 inhibition after alcohol memory retrieval impaired alcohol-memory reconsolidation and led to long-lasting relapse suppression. Attenuation of relapse was also induced by post-retrieval administration of lacosamide, an inhibitor of collapsin response mediator protein-2 (CRMP2)-a translational product of mTORC1. Together, our findings indicate the crucial role of ERK1/2 and CRMP2 in the reconsolidation of alcohol memories, with their inhibition as potential treatment targets for relapse prevention.
- Published
- 2024
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10. Low cardiorespiratory fitness is associated with elevated intraocular pressure among apparently healthy adults.
- Author
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Stanescu N, Steinbuch L, Segev A, Kovalyuk N, Segev S, Maor E, and Segev F
- Subjects
- Humans, Male, Female, Adult, Middle Aged, Cross-Sectional Studies, Exercise Test, Risk Factors, Cardiorespiratory Fitness physiology, Intraocular Pressure physiology
- Abstract
Purpose: To evaluate the association of cardiorespiratory fitness with elevated intraocular pressure (IOP) in healthy adults., Methods: In this cross-sectional study, we evaluated 17,990 asymptomatic self-referred adults free of diabetes or cardiovascular disease who were screened in a preventive healthcare setting. All subjects underwent measurement of IOP and completed a maximal exercise stress test according to the Bruce protocol. Fitness was categorized into age and sex-specific quintiles according to the treadmill time and dichotomized to low (lowest quintile) and non-low fitness groups. Elevated IOP was defined as ≥ 21 mmHg., Results: Median age was 45 (IQR 39-52) years and 12,073 (67%) were men. There were 3,351 (19%) subjects in the low fitness group. Median IOP was 14 mmHg (IQR 12-16) with elevated IOP documented in 188 (1%) subjects. Univariate binary logistic regression model demonstrated that compared with non-low fitness group, subjects in the low fitness group were 2.2 times more likely to have elevated IOP (95% CI 1.598-2.95, p<0.001). Multivariate binary logistic regression with adjustment to known cardiovascular risk factors (age, sex, hypertension, smoking, overweight, regular physical activity, low HDL cholesterol, high triglycerides, and fasting glucose levels) successfully demonstrated that lower fitness was independently and significantly associated with a 90% increased likelihood of elevated IOP (95% CI 1.37-2.61, p<0.001). Subgroup analysis revealed that the association was more pronounced among women compared with men (OR 3.8 vs. 1.6, p for interaction = 0.069)., Conclusions: Low cardiorespiratory fitness is independently associated with increased IOP among apparently healthy adults., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Stanescu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
- Full Text
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11. A dual-omics approach on the effects of fibroblast growth factor-2 (FGF-2) on ventral tegmental area dopaminergic neurons in response to alcohol consumption in mice.
- Author
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Hose L, Langenhagen AK, Kefalakes E, Schweitzer T, Kubinski S, Barak S, Pich A, and Grothe C
- Subjects
- Mice, Animals, Dopaminergic Neurons metabolism, Fibroblast Growth Factor 2 metabolism, Proteomics, Alcohol Drinking, Ventral Tegmental Area metabolism, Alcoholism genetics, Alcoholism metabolism
- Abstract
Harmful alcohol consumption is a major socioeconomic burden to the health system, as it can be the cause of mortality of heavy alcohol drinkers. The dopaminergic (DAergic) system is thought to play an important role in the pathogenesis of alcohol drinking behaviour; however, its exact role remains elusive. Fibroblast growth factor 2 (FGF-2), a neurotrophic factor, associated with both the DAergic system and alcohol consumption, may play an important role in DAergic neuroadaptations during alcohol abuse. Within this study, we aimed to clarify the role of endogenous FGF-2 on the DAergic system and whether there is a possible link to alcohol consumption. We found that lack of FGF-2 reduces the alcohol intake of mice. Transcriptome analysis of DAergic neurons revealed that FGF-2 knockout (FGF-2 KO) shifts the molecular fingerprint of midbrain dopaminergic (mDA) neurons to DA subtypes of the ventral tegmental area (VTA). In line with this, proteomic changes predominantly appear also in the VTA. Interestingly, these changes led to an altered regulation of the FGF-2 signalling cascades and DAergic pathways in a region-specific manner, which was only marginally affected by voluntary alcohol consumption. Thus, lack of FGF-2 not only affects the gene expression but also the proteome of specific brain regions of mDA neurons. Our study provides new insights into the neuroadaptations of the DAergic system during alcohol abuse and, therefore, comprises novel targets for future pharmacological interventions., (© 2024 The Authors. European Journal of Neuroscience published by Federation of European Neuroscience Societies and John Wiley & Sons Ltd.)
- Published
- 2024
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12. A novel free-operant framework enables experimental habit induction in humans.
- Author
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Gera R, Barak S, and Schonberg T
- Subjects
- Humans, Male, Female, Adult, Young Adult, Reward, Smartphone, Mobile Applications, Adolescent, Habits, Motivation, Conditioning, Operant physiology
- Abstract
Habits are a prominent feature of both adaptive and maladaptive behavior. Yet, despite substantial research efforts, there are currently no well-established experimental procedures for habit induction in humans. It is likely that laboratory experimental settings, as well as the session-based structure typically used in controlled experiments (also outside the lab), impose serious constraints on studying habits and other effects that are sensitive to context, motivation, and training duration and frequency. To overcome these challenges, we devised a unique real-world free-operant task structure, implemented through a novel smartphone application, whereby participants could freely enter the app (24 hours a day, 7 days a week) to win rewards. This procedure is free of typical laboratory constraints, yet well controlled. Using the canonical sensitivity to outcome devaluation criterion, we successfully demonstrated habit formation as a function of training duration, a long-standing challenge in the field. Additionally, we show a positive relationship between multiple facets of engagement/motivation and goal-directedness. We suggest that our novel paradigm can be used to study the neurobehavioral and psychological mechanism underlying habits in humans. Moreover, the real-world free-operant framework can potentially be used to examine other instrumental behavior-related questions, with greater face validity in naturalistic conditions., (© 2023. The Author(s).)
- Published
- 2024
- Full Text
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13. Drug shortages in Israel, revisited: a bitter pill to swallow.
- Author
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Schwartzberg E, Marom E, Vishkautzan A, Gorelik E, and Shani S
- Subjects
- Humans, Israel, Pharmaceutical Preparations, Health Personnel
- Abstract
Background: In 2017, we published an article addressing drug shortages (DS) in Israel, exploring regulatory perspectives, challenges, and potential solutions. Since then, DS remain a significant concern for patients, healthcare providers, and policymakers globally. In this updated article, we revisit the topic, providing new insights, data, and analysis on the current DS landscape in Israel, efforts to mitigate them, and propose strategies to combat this escalating issue., Methods: We conducted a comprehensive search of the Israeli Ministry of Health (MOH) DS database, spanning from 2014 to the present. We extracted DS numbers and their reasons. Further searches on the Israeli MOH website, pharmaceutical division archives, and the internet yielded official MOH publications and correspondence regarding regulatory responses to DS from 2017 onwards. Additionally, two specific cases of DS were examined to analyze their handling. Recent activities and publications from the Israeli MOH aimed at reducing DS were also reviewed., Results: Between 2014 and 2022, DS surged 2.66-fold. Total DS were 3228; 672 due to commercial reasons, and 2556 to operational reasons (20.5% and 79.5% respectively). The average duration of intermittent DS increased 1.56-fold, from 85 to 133 days. Manufacturers informed the MOH 22 days prior to actual shortage on average. Analyzing 2022's DS (640) by ATC groups, prominent categories included nervous system drugs (18%), drugs acting on the alimentary tract and metabolism (14%), and dermatologicals (11%). Operational DS in 2022 (n = 564) were primarily due to stock delivery delays (38%), stock over-utilization (12%), and raw material shortages (9%). Sixteen official MOH publications on DS were identified from 2017 onwards. Moreover, two high-impact DS case studies were examined., Conclusion: Despite routine monitoring by the Israeli MOH and updating the DS policy throughout this period, DS persist, intensifying annually and posing serious health risks. This trend mirrors international patterns, affecting countries globally. In Israel's uniquely structured healthcare system, with its swift stakeholder cooperation and implementation capabilities, more effective DS management is conceivable. We propose ten universally applicable rules to address DS challenges., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
14. Prevalence of common and rare ophthalmic findings in adults attending a medical survey institute.
- Author
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Landau Prat D, Kapelushnik N, Zloto O, Leshno A, Klang E, Sina S, Segev S, Arazi M, Soudry S, and Ben Simon GJ
- Subjects
- Adult, Male, Humans, Middle Aged, Female, Prevalence, Retrospective Studies, Optic Nerve, Pseudophakia, Cataract
- Abstract
Purpose: To examine the ophthalmic data from a large database of people attending a general medical survey institute, and to investigate ophthalmic findings of the eye and its adnexa, including differences in age and sex., Methods: Retrospective analysis including medical data of all consecutive individuals whose ophthalmic data and the prevalences of ocular pathologies were extracted from a very large database of subjects examined at a single general medical survey institute., Results: Data were derived from 184,589 visits of 3676 patients (mean age 52 years, 68% males). The prevalence of the following eye pathologies were extracted. Eyelids: blepharitis (n = 4885, 13.3%), dermatochalasis (n = 4666, 12.7%), ptosis (n = 677, 1.8%), ectropion (n = 73, 0.2%), and xanthelasma (n = 160, 0.4%). Anterior segment: pinguecula (n = 3368, 9.2%), pterygium (n = 852, 2.3%), and cataract or pseudophakia (n = 9381, 27.1%). Cataract type (percentage of all phakic patients): nuclear sclerosis (n = 8908, 24.2%), posterior subcapsular (n = 846, 2.3%), and capsular anterior (n = 781, 2.1%). Pseudophakia was recorded for 697 patients (4.6%), and posterior subcapsular opacification for 229 (0.6%) patients. Optic nerve head (ONH): peripapillary atrophy (n = 4947, 13.5%), tilted disc (n = 3344, 9.1%), temporal slope (n = 410, 1.1%), ONH notch (n = 61, 0.2%), myelinated nerve fiber layer (n = 94, 0.3%), ONH drusen (n = 37, 0.1%), optic pit (n = 3, 0.0%), and ON coloboma (n = 4, 0.0%). Most pathologies were more common in males except for ONH, and most pathologies demonstrated a higher prevalence with increasing age., Conclusions: Normal ophthalmic data and the prevalences of ocular pathologies were extracted from a very large database of subjects seen at a single medical survey institute., (© 2024. The Author(s).)
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- 2024
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15. [ETHICAL PERSPECTIVES AND DILEMMAS IN PRESCRIBING AND DISPENSING MEDICINAL PRODUCTS IN ISRAEL].
- Author
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Schwartzberg E, Marom E, Trainin M, Lavon O, and Shani S
- Subjects
- Humans, Israel, Pharmacists, Prescriptions, Medicine
- Abstract
Introduction: Drug therapy is a central pillar in the provision of medical care. A significant number of doctor-patient encounters conclude with a prescription for a drug. These are subsequently followed by a pharmacist-patient interaction that ends with the dispensing of prescription drugs and/or a recommendation for an over-the-counter drug and other products. In Israel, the fields of medicine and pharmacy are highly regulated with extensive legislation.
- Published
- 2024
16. Differentiating spinal pathologies by deep learning approach.
- Author
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Haim O, Agur A, Gabay S, Azolai L, Shutan I, Chitayat M, Katirai M, Sadon S, Artzi M, and Lidar Z
- Subjects
- Humans, Retrospective Studies, Spine, Deep Learning, Neurilemmoma surgery, Meningeal Neoplasms
- Abstract
Background Context: Spinal pathologies are diverse in nature and, excluding trauma and degenerative diseases, includes infectious, neoplastic (either extradural or intradural), and inflammatory conditions. The preoperative diagnosis is made with clinical judgment incorporating lab findings and radiological studies. When the diagnosis is uncertain, a biopsy is almost always mandatory since the treatment is dictated by the type of pathology. This is an invasive, timely, and costly process., Purpose: The aim of this study was to develop a deep learning (DL) algorithm, based on preoperative MRI and post-operative pathological results, to differentiate between leading spinal pathologies., Study Design: We retrospectively collected and analyzed clinical, radiological, and pathological data of patients who underwent spinal surgery or biopsy for various spinal pathologies between 2008 and 2022 at a tertiary center. The patients were stratified according to their pathological reports (the threshold for inclusion was set to 25 patients per diagnosis)., Methods: Preoperative MRI, clinical data, and pathological results were processed by a deep learning model built on the Fast.ai framework on top of the PyTorch environment., Results: A total of 231 patients diagnosed with carcinoma (80), infection (57), meningioma (52), or schwannoma (42), were included in our model. The mean overall accuracy was 0.78±0.06 for the validation, and 0.93±0.03 for the test dataset., Conclusion: Deep learning algorithm for differentiation between the aforementioned spinal pathologies, based solely on clinical MRI, proves as a feasible primary diagnostic modality. Larger studies should be performed to validate and improve this algorithm for clinical use., Clinical Significance: This study provides a proof-of-concept for predicting spinal pathologies solely by MRI based DL technology, allowing for a rapid, targeted, and cost-effective work-up and subsequent treatment., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Inc. All rights reserved.)
- Published
- 2024
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17. Mild renal impairment is associated with increased cardiovascular events and all-cause mortality following cancer diagnosis.
- Author
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Moshkovits Y, Goldman A, Tiosano S, Kaplan A, Kalstein M, Bayshtok G, Segev S, Grossman E, Segev A, and Maor E
- Subjects
- Adult, Humans, Female, Male, Risk Assessment, Proportional Hazards Models, Risk Factors, Stroke epidemiology, Cardiovascular Diseases diagnosis, Cardiovascular Diseases epidemiology, Cardiovascular Diseases prevention & control, Neoplasms diagnosis, Neoplasms epidemiology
- Abstract
Background: The association between mildly decreased renal function and cardiovascular (CV) outcomes in cancer patients remains unestablished., Aims: We sought to explore this association in asymptomatic self-referred healthy adults., Method: We followed 25, 274 adults, aged 40-79 years, who were screened in preventive healthcare settings. Participants were free of CV disease or cancer at baseline. The estimated glomerular filtration rate (eGFR) was calculated according to the CKD Epidemiology Collaboration equation and categorized into groups [≤59, 60-69, 70-79, 80-89, 90-99, ≥100 (ml/min/1.73 m²)]. The outcome included a composite of death, acute coronary syndrome, or stroke, examined using a Cox model with cancer as a time-dependent variable., Results: Mean age at baseline was 50 ± 8 years and 7973 (32%) were women. During a median follow-up of 6 years (interquartile range: 3-11), 1879 (7.4%) participants were diagnosed with cancer, of them 504 (27%) develop the composite outcome and 82 (4%) presented with CV events. Multivariable time-dependent analysis showed an increased risk of 1.6, 1.4, and 1.8 for the composite outcome among individuals with eGFR of 90-99 [95% confidence interval (CI): 1.2-2.1 P = 0.01], 80-89 (95% CI: 1.1-1.9, P = 0.01) and 70-79 (95% CI: 1.4-2.3, P < 0.001), respectively. The association between eGFR and the composite outcome was modified by cancer with 2.7-2.9 greater risk among cancer patients with eGFR of 90-99 and 80-89 but not among individuals free from cancer ( Pinteraction < 0.001)., Conclusion: Patients with mild renal impairment are at high risk for CV events and all-cause mortality following cancer diagnosis. eGFR evaluation should be considered in the CV risk assessment of cancer patients., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2024
- Full Text
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18. Glaucoma Prediction Models Based on Ocular and Systemic Findings.
- Author
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Landau Prat D, Kapelushnik N, Arazi M, Zloto O, Leshno A, Klang E, Sina S, Segev S, Soudry S, and Ben Simon GJ
- Subjects
- Male, Humans, Adult, Middle Aged, Aged, Eye, Intraocular Pressure, Tonometry, Ocular, Glaucoma diagnosis, Cataract complications
- Abstract
Introduction: Our aim was to explore the impact of various systemic and ocular findings on predicting the development of glaucoma., Methods: Medical records of 37,692 consecutive patients examined at a single medical center between 2001 and 2020 were analyzed using machine learning algorithms. Systemic and ocular features were included. Univariate and multivariate analyses followed by CatBoost and Light gradient-boosting machine prediction models were performed. Main outcome measures were systemic and ocular features associated with progression to glaucoma., Results: A total of 7,880 patients (mean age 54.7 ± 12.6 years, 5,520 males [70.1%]) were included in a 3-year prediction model, and 314 patients (3.98%) had a final diagnosis of glaucoma. The combined model included 185 systemic and 42 ocular findings, and reached an ROC AUC of 0.84. The associated features were intraocular pressure (48.6%), cup-to-disk ratio (22.7%), age (8.6%), mean corpuscular volume (MCV) of red blood cell trend (5.2%), urinary system disease (3.3%), MCV (2.6%), creatinine level trend (2.1%), monocyte count trend (1.7%), ergometry metabolic equivalent task score (1.7%), dyslipidemia duration (1.6%), prostate-specific antigen level (1.2%), and musculoskeletal disease duration (0.5%). The ocular prediction model reached an ROC AUC of 0.86. Additional features included were age-related macular degeneration (10.0%), anterior capsular cataract (3.3%), visual acuity (2.0%), and peripapillary atrophy (1.3%)., Conclusions: Ocular and combined systemic-ocular models can strongly predict the development of glaucoma in the forthcoming 3 years. Novel progression indicators may include anterior subcapsular cataracts, urinary disorders, and complete blood test results (mainly increased MCV and monocyte count)., (© 2023 The Author(s). Published by S. Karger AG, Basel.)
- Published
- 2024
- Full Text
- View/download PDF
19. Optimization of Radiofrequency Needle Placement in Percutaneous Cordotomy Using Electromyography in the Deeply Sedated Patient.
- Author
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Gabay S, Sapir Y, Korn A, Hochberg U, Tellem R, Zegerman A, Brogan SE, Rahimpour S, Shofty B, and Strauss I
- Subjects
- Humans, Electromyography, Retrospective Studies, Spinothalamic Tracts surgery, Cordotomy methods, Pain, Intractable
- Abstract
Background and Objectives: Cordotomy, the selective disconnection of the nociceptive fibers in the spinothalamic tract, is used to provide pain palliation to oncological patients suffering from intractable cancer-related pain. Cordotomies are commonly performed using a cervical (C1-2) percutaneous approach under imaging guidance and require patients' cooperation to functionally localize the spinothalamic tract. This can be challenging in patients suffering from extreme pain. It has recently been demonstrated that intraoperative neurophysiology monitoring by electromyography may aid in safe lesion positioning. The aim of this study was to evaluate the role of compound muscle action potential (CMAP) in deeply sedated patients undergoing percutaneous cervical cordotomy (PCC)., Methods: A retrospective analysis was conducted of all patients who underwent percutaneous cordotomy while deeply sedated between January 2019 and November 2022 in 2 academic centers. The operative report, neuromonitoring logs, and clinical medical records were evaluated., Results: Eleven patients underwent PCC under deep sedation. In all patients, the final motor assessment prior to ablation was done using the electrophysiological criterion alone. The median threshold for evoking CMAP activity at the lesion site was 0.9 V ranging between 0.5 and 1.5 V (average 1 V ± 0.34 V SD). An immediate, substantial decrease in pain was observed in 9 patients. The median pain scores (Numeric Rating Scale) decreased from 10 preoperatively (range 8-10) to a median 0 (range 0-10) immediately after surgery. None of our patients developed motor deficits., Conclusion: CMAP-guided PCC may be feasible in deeply sedated patients without added risk to postoperative motor function. This technique should be considered in a group of patients who are not able to undergo awake PCC., (Copyright © Congress of Neurological Surgeons 2023. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
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