Publications by authors named "Krantz M"

Article Synopsis
  • Child mental health has declined worldwide, with research suggesting a link to increased screen time, particularly from smartphones and social media.
  • Most studies show that high usage of screens correlates with negative mental health outcomes, especially among teenage girls, and some studies indicate that this relationship can be bidirectional.
  • Interventions aimed at reducing screen time have been shown to improve mental well-being in experimental studies.
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We present the case of a 61-year-old man who presented to his primary care provider for a routine visit and was found to have a pulsatile mass in his right neck. This case report shows the importance of a thorough physical exam during patient visits. In this case, the physical exam resulted in the diagnosis of a carotid body tumor (CBT) prior to the patient becoming symptomatic from it.

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Article Synopsis
  • - We want to highlight the issue of allergies to excipients like carboxymethylcellulose, which are often overlooked in medical diagnoses.
  • - These overlooked allergies can cause serious health problems for patients.
  • - Lack of awareness can lead to unnecessary restrictions on the medication options available to patients.
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We present the case of an 80-year-old man who underwent a subclavian-to-distal internal carotid artery bypass with a reversed saphenous vein due to symptomatic in-stent restenosis, following a carotid endarterectomy 20 years ago and carotid artery stenting 10 years ago. The patient presented with right-sided hemiparesis and dysarthria. Imaging suggested in-stent restenosis of the internal carotid artery stent.

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  • Children at familial high risk of schizophrenia (FHR-SZ) or bipolar disorder (FHR-BD) experience more physical health issues and have a higher prevalence of somatic complaints compared to the general population.
  • A study involving blood tests and interviews showed that FHR-SZ children had elevated levels of inflammatory markers like leucocytes and neutrophilocytes, alongside reporting more somatic complaints than population-based controls.
  • The findings suggest that children at FHR-SZ and FHR-BD may face additional health challenges that could influence their mental health later on, indicating a need for further research into these relationships.
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Objectives: Phenotyping is a core task in observational health research utilizing electronic health records (EHRs). Developing an accurate algorithm demands substantial input from domain experts, involving extensive literature review and evidence synthesis. This burdensome process limits scalability and delays knowledge discovery.

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Background: In the absence of a contiguous bowel perforation or intraabdominal source, infection of a retained vena cava filter in an occluded IVC has never been described.

Objective: To describe a case of an infected IVC filter in a chronically occluded iliocaval segment.

Methods: Here we present a case of an immunosuppressed 35-year-old female with chronically occluded iliocaval stents and an extensive staphylococcus hominis infection of a previously endo-trashed Bard Eclipse® filter.

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Background: Children of parents with severe mental illness report bullying more often compared with controls. We hypothesized that deviations in attributional styles may explain the increased prevalence of bullying experiences. We aimed to assess real-time responses to standardized ambiguous social situations, bullying experiences by children, their primary caregivers, and teachers, and to investigate potential associations between attributional styles and bullying.

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Objectives: Phenotyping is a core task in observational health research utilizing electronic health records (EHRs). Developing an accurate algorithm demands substantial input from domain experts, involving extensive literature review and evidence synthesis. This burdensome process limits scalability and delays knowledge discovery.

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Background: Vancomycin, a glycopeptide antibiotic used for Gram-positive bacterial infections, has been linked with drug reaction with eosinophilia and systemic symptoms (DRESS) in HLA-A*32:01-expressing individuals. This is associated with activation of T lymphocytes, for which glycolysis has been isolated as a fuel pathway following antigenic stimulation. However, the metabolic processes that underpin drug-reactive T-cell activation are currently undefined and may shed light on the energetic conditions needed for the elicitation of drug hypersensitivity or tolerogenic pathways.

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The NLRP3 inflammasome is a key regulator of inflammation that responds to a broad range of stimuli. The exact mechanism of activation has not been determined, but there is a consensus on cellular potassium efflux as a major common denominator. Once NLRP3 is activated, it forms high-order complexes together with NEK7 that trigger aggregation of ASC into specks.

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Background: Anorexia nervosa (AN) is associated with left ventricular (LV) atrophy and unexplained sudden death. Myocardial mechanics have not been well studied in adults with AN. Whether LV mass or illness duration, markers of AN severity, correlate with abnormal strain imaging is unknown.

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Background: Children of parents with severe mental illness have several known risk factors for altered pubertal timing. Pubertal timing is important for children's physical and emotional development. We aimed to examine pubertal timing and associations between pubertal timing, early life adversity and child problem behavior including psychiatric diagnoses among children of parents with schizophrenia or bipolar disorder and controls.

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  • Social functioning is a key indicator of psychosis risk, and this study explores its development in children at high familial risk for schizophrenia (FHR-SZ) or bipolar disorder (FHR-BP) from ages 7 to 11.
  • The research measured social functioning using the Vineland-II, comparing 179 children at FHR-SZ, 105 at FHR-BP, and 181 population controls, with findings showing no significant differences in social functioning development across the groups.
  • While children at FHR-SZ exhibited persistent social functioning deficits, those at FHR-BP had similar social skills to controls, except for some difficulties with coping skills by age 11.
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Background: Youth with Autism Spectrum Disorder (ASD) are at-risk for sleep and behavior problems, and their parents are at-risk for high stress. Child sleep duration, behavior problems, and parenting stress are interrelated; however, directionality of these associations is unclear and research including youth with ASD is lacking. Using a day-to-day, within-person design, this study explores the directionality of these relationships in families of children with ASD.

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  • Twin studies have indicated that social responsiveness has moderate to high heritability, but there is a lack of research using parent-child data in this area.
  • The study, involving families with a parent who has schizophrenia or bipolar disorder, assessed social responsiveness using the SRS-2 and found varied heritability estimates depending on whether ratings were provided by caregivers or teachers.
  • The findings suggest that while social responsiveness is heritable, estimates can be influenced by the relationship between the rater and the child, as well as the family's mental health background, impacting clinical practices and future research.
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Background: The home environment has a major impact on child development. Parental severe mental illness can pose a challenge to the home environment of a child. We aimed to examine the home environment of children of parents with schizophrenia or bipolar disorder and controls longitudinally through at-home assessments.

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Background: Computational models of cell signaling networks are extremely useful tools for the exploration of underlying system behavior and prediction of response to various perturbations. By representing signaling cascades as executable Boolean networks, the previously developed rxncon ("reaction-contingency") formalism and associated Python package enable accurate and scalable modeling of signal transduction even in large (thousands of components) biological systems. The models are split into reactions, which generate states, and contingencies, that impinge on reactions; this avoids the so-called "combinatorial explosion" of system size.

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Background: Epidemic increases in opioid deaths prompted policies limiting access to prescription opioids in North America. Consequently, the over-the-counter opioids loperamide (Imodium A-D) and mitragynine, the herbal ingredient in kratom, are increasingly used to avert withdrawal or induce euphoria. Arrhythmia events related to these nonscheduled drugs have not been systematically studied.

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Background: Despite the genetic overlap between bipolar disorder and schizophrenia, working memory impairments are mainly found in children of parents with schizophrenia. However, working memory impairments are characterized by substantial heterogeneity, and it is unknown how this heterogeneity develops over time. We used a data-driven approach to assess working memory heterogeneity and longitudinal stability in children at familial high risk of schizophrenia (FHR-SZ) or bipolar disorder (FHR-BP).

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Schizophrenia and bipolar disorder are highly heritable severe mental disorders associated with social impairments. Moreover, partners to individuals with one of these disorders display poorer functioning and more psychopathology, but their social skills and the transgenerational transmission remains uninvestigated. Therefore, we aimed to examine social responsiveness in families with parental schizophrenia or bipolar disorder.

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