Publications by authors named "Seyed M Nouraie"

Introduction: The common genetic underpinnings of psoriasis and pulmonary comorbidities have yet to be explored.

Material And Methods: In this cross-sectional study, we investigated the single-nucleotide polymorphisms (SNPs) associated with psoriasis and their relationship with pulmonary function using data from the UK Biobank (UKBB) and the Vanderbilt University Medical Center Biobank (BioVU).

Results: Out of the 63 psoriasis-associated SNPs identified in previous genome-wide association studies within the European population, we successfully identified 53 SNPs, including proxy SNPs in UKBB database.

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: To evaluate the prognostic utility of CT-imaging-derived biomarkers in distinguishing acute pulmonary embolism (PE) resolution and its progression to chronic PE, as well as their association with clot burden. : We utilized a cohort of 45 patients (19 male (42.2%)) and 96 corresponding CT scans with exertional dyspnea following an acute PE.

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  • Sleep deprivation is linked to significant health risks, including an increased likelihood of influenza, particularly following acute sleep deprivation events (ASDEs) identified in a large population study.
  • The study used data from Fitbit users to analyze sleep patterns and health outcomes, revealing a correlation between political/non-political events and instances of decreased sleep.
  • Genetic factors related to sleep duration were found to influence both the severity of sleep deprivation and the risk of subsequent health issues, emphasizing the need for awareness of health impacts during major national events.
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  • Ambulatory oxygen is vital for patients with idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) who have low oxygen levels during physical activity, especially if traditional testing may miss their true needs.
  • A study reviewed treadmill exercise tests for 329 IPF patients and 2,343 COPD patients to measure their oxygen flow requirements, finding that IPF patients typically need more oxygen than COPD patients at peak exertion.
  • Notably, while some patients didn't need oxygen during moderate exercise, a significant portion (49% of IPF and 24% of COPD patients) required it when pushed to their highest level of exertion, highlighting the limitations of standard testing.
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Chronic kidney disease (CKD) is a major contributor to morbidity and mortality in sickle cell disease (SCD). Anemia, induced by chronic persistent hemolysis, is associated with the progressive deterioration of renal health, resulting in CKD. Moreover, patients with SCD experience acute kidney injury (AKI), a risk factor for CKD, often during vaso-occlusive crisis associated with acute intravascular hemolysis.

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Objective: To characterise subphenotypes of self-reported symptoms and outcomes (SRSOs) in postacute sequelae of COVID-19 (PASC).

Design: Prospective, observational cohort study of subjects with PASC.

Setting: Academic tertiary centre from five clinical referral sources.

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Background: Glucocorticoids are commonly used in patients with or at-risk for acute respiratory distress syndrome (ARDS), but optimal use remains unclear despite well-conducted clinical trials. We performed a secondary analysis in patients previously enrolled in the Acute Lung Injury and Biospecimen Repository at the University of Pittsburgh. The primary aim of our study was to investigate early changes in host response biomarkers in response to real-world use of glucocorticoids in patients with acute respiratory failure due to ARDS or at-risk due to a pulmonary insult.

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Background: Hospitalized patients with severe COVID-19 follow heterogeneous clinical trajectories, requiring different levels of respiratory support and experiencing diverse clinical outcomes. Differences in host immune responses to SARS-CoV-2 infection may account for the heterogeneous clinical course, but we have limited data on the dynamic evolution of systemic biomarkers and related subphenotypes. Improved understanding of the dynamic transitions of host subphenotypes in COVID-19 may allow for improved patient selection for targeted therapies.

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Objectives: There is a paucity of available biomarkers of disease activity in idiopathic inflammatory myopathies (IIM), and serum cytokines/chemokines hold potential as candidate biomarkers. We aimed to determine serum cytokine profiles of IIM patients with active disease as compared to patients in remission and healthy controls.

Methods: The IIM patients with active disease (included patients enrolled in repository corticotropin injection trial), in remission, and healthy controls were enrolled in this cross-sectional observational study.

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Background: Left heart disease is the most common cause of pulmonary hypertension (PH) and is frequently accompanied by increases in pulmonary vascular resistance. However, the distinction between phenotypes of PH due to left heart disease with a normal or elevated pulmonary vascular resistance-isolated postcapillary PH (IpcPH) and combined pre- and postcapillary PH (CpcPH), respectively-has been incompletely defined using unbiased methods.

Methods And Results: Patients with extremes of IpcPH versus CpcPH were identified from a single-center record of those who underwent right heart catheterization.

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Introduction: Acute mortality from carbon monoxide poisoning is 1-3%. The long-term mortality risk of survivors of carbon monoxide poisoning is doubled compared to age-matched controls. Cardiac involvement also increases mortality risk.

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Objectives: To identify respiratory comorbidities associated with a high risk of developing respiratory failure in subjects with psoriasis.

Methods: This was a cross-sectional analysis of data from subjects enrolled in the UK Biobank cohort. All diagnoses were self-reported.

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Importance: Despite the critical role of caregivers in head and neck cancer (HNC), there is limited literature on caregiver burden (CGB) and its evolution over treatment. Research is needed to address evidence gaps that exist in understanding the causal pathways between caregiving and treatment outcomes.

Objective: To evaluate the prevalence of and identify risk factors for CGB in HNC survivorship.

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Background: Fatty acid oxidation (FAO) defects have been implicated in experimental models of acute lung injury and associated with poor outcomes in critical illness. In this study, we examined acylcarnitine profiles and 3-methylhistidine as markers of FAO defects and skeletal muscle catabolism, respectively, in patients with acute respiratory failure. We determined whether these metabolites were associated with host-response ARDS subphenotypes, inflammatory biomarkers, and clinical outcomes in acute respiratory failure.

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  • Human genetic variation has helped identify key regulators of hemoglobin switching, notably BCL11A, leading to therapeutic advancements, but understanding of the broader regulatory mechanisms remains limited.
  • A large genome-wide association study involving 28,279 individuals from 5 continents identified 178 significant genetic variants affecting fetal hemoglobin regulation.
  • The research pinpointed BACH2 as a new regulator and clarified how certain genetic variations, including rare deletions, interact to influence fetal hemoglobin levels, paving the way for improved treatments for conditions like sickle cell disease and β-thalassemia.
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The cystic fibrosis (CF) respiratory tract harbors pathogenic bacteria that cause life-threatening chronic infections. Of these, Pseudomonas aeruginosa becomes increasingly dominant with age and is associated with worsening lung function and declining microbial diversity. We aimed to understand why P.

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Background: Sarcoidosis is a multiorgan system granulomatous disease of unknown etiology. It is hypothesized that a combination of environmental, occupational, and/or infectious factors provoke an immunological response in genetically susceptible individuals, resulting in a diversity of manifestations throughout the body. In the United States, cardiac sarcoidosis (CS) is diagnosed in 5% of patients with systemic sarcoidosis, however, autopsy results suggest that cardiac involvement may be present in > 50% of patients.

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Purpose: Enhanced understanding of the dynamic changes in the dysregulated inflammatory response in COVID-19 may help improve patient selection and timing for immunomodulatory therapies.

Methods: We enrolled 323 COVID-19 inpatients on different levels of baseline respiratory support: i) Low Flow Oxygen (37%), ii) Non-Invasive Ventilation or High Flow Oxygen (NIV_HFO, 29%), iii) Invasive Mechanical Ventilation (IMV, 27%), and iv) Extracorporeal Membrane Oxygenation (ECMO, 7%). We collected plasma samples upon enrollment and days 5 and 10 to measure host-response biomarkers.

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Epinephrine is the principal resuscitation therapy for pediatric cardiac arrest (CA). Clinical data suggest that although epinephrine increases the rate of resuscitation, it fails to improve neurological outcome, possibly secondary to reductions in microvascular flow. We characterized the effect of epinephrine vs.

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  • Prostacyclin analogs, particularly treprostinil, are effective treatments for pulmonary arterial hypertension (PAH) but their protective mechanisms on the right ventricle (RV) are not fully understood.
  • In a study using a rat model of severe PAH, treprostinil was found to significantly reduce RV hypertrophy and pressures associated with the disease, indicating improvements in RV function.
  • Analysis of RV tissues showed that treprostinil treatment alleviated certain fibrotic markers and did not affect mitochondrial respiration, suggesting that the therapy may enhance RV performance through mechanisms independent of load changes.
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Background: Fractional exhaled nitric oxide (FeNO) is a cost-effective, noninvasive point-of-care test that has proven valuable in identifying patients with lower airway inflammation and predicting the likelihood of responsiveness to inhaled corticosteroid therapy in asthma. The utility of FeNO in upper airway disease, specifically in CRS, remains to be determined.

Objective: The goal of this study was to test whether FeNO could serve as a noninvasive marker of sinonasal mucosal inflammation in CRS patients.

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Superoxide dismutase 2 (SOD2) catalyzes the dismutation of superoxide to hydrogen peroxide in mitochondria, limiting mitochondrial damage. The SOD2 amino acid valine-to-alanine substitution at position 16 (V16A) in the mitochondrial leader sequence is a common genetic variant among patients with sickle cell disease (SCD). However, little is known about the cardiovascular consequences of SOD2V16A in SCD patients or its impact on endothelial cell function.

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