Publications by authors named "Kohlhoff S"

Background: Stenotrophomonas maltophilia is a multi-drug-resistant, hospital-acquired Gram-negative bacillus associated with significant morbidity and mortality. The objective of this study is to identify risk factors and outcomes associated with S. maltophilia isolation in a high-risk neonatal population.

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Objective: () is a gram-negative intracellular bacterium that causes respiratory infections in humans. is responsible for cell activation and production of cytokines that may contribute to inflammatory responses in asthma. Cell-mediated immune responses are important for protective immunity; however, these responses may be impaired in asthma.

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Objective: CD60 is a T cell marker expressed on blood lymphocytes. CD8+CD60+ T cells may play a role in inflammatory responses due to human immunodeficiency virus-1 (HIV-1). Our laboratory demonstrated that CD8+CD60+ T cells are higher in HIV positive compared with HIV negative subjects.

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Consistent care is crucial for the health maintenance of people living with human immunodeficiency virus (HIV) (PWH). The coronavirus 2019 (COVID-19) epidemic disrupted patient care in New York City (NYC), yet few studies investigated the association between COVID-19 and viral load suppression in PWH in NYC. This study aims to assess how the COVID-19 pandemic impacted HIV viral load and CD4 + T-cell counts in PWH.

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Mitogen-activated protein kinases (MAPK) activate cascades that regulate cell proliferation, differentiation and death. Phosphorylated (phos-)p38 MAPK is a cell-signalling pathway associated with Th2 cytokine responses, which is required for immunoglobulin (Ig)E production. It is unknown whether MAPK are associated with IgE production.

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Objective: To determine the positivity rate of congenital cytomegalovirus (cCMV) testing among universal, hearing-targeted CMV testing (HT-cCMV) and delayed targeted dried blood spot (DBS) testing newborn screening programs, and to examine the characteristics of successful HT-cCMV testing programs.

Study Design: Prospective survey of birth hospitals performing early CMV testing.

Setting: Multiple institutions.

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Introduction: Social determinants of health (SDH) negatively affected Coronavirus disease-2019 (COVID-19) outcomes within the five boroughs of New York City. The goal of this study was to determine whether differences in social demographics within the borough of Staten Island, compared with the other four boroughs, may have contributed to poor COVID-19 outcomes in Staten Island.

Methods: Data were obtained from public data sources.

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Chlamydia pneumoniae is an obligate intracellular bacterium that causes respiratory infections in humans. An association between persistent C. pneumoniae infection and asthma pathogenesis has been described.

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Purpose: To determine the relationship between perceived social support and viral suppression among young adults with perinatally-acquired HIV (YAPHIV).

Participants And Methods: We included YAPHIV ≥18 years enrolled in AMP Up, a study of PHACS (Pediatric HIV/AIDS Cohort Study), with social support evaluations and ≥1 HIV viral load (VL) measured over the next year. We evaluated emotional, instrumental, and friendship social support via the NIH Toolbox.

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Chlamydia pneumoniae (C. pneumoniae) is a gram-negative intracellular bacterium that causes respiratory infection in humans, including subjects with or without asthma. C.

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Objective: Intercellular adhesion molecule-1 (ICAM-1), an endothelial cell adhesion molecule, contributes to inflammation and immune-mediated responses. Viral infection of endothelial cells caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can cause vascular changes and elevate the expression of ICAM-1 in coronavirus disease 2019 (COVID-19) patients and may be used as a biomarker to measure disease severity or recovery. This study sought to identify the ICAM-1 levels in convalescent COVID-19 serum 2 to 33 weeks after the initial diagnosis.

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Objective: The aim of this study was to implement pediatric vertical evacuation disaster training and evaluate its effectiveness by using a full-scale exercise to compare outcomes in trained and untrained participants.

Methods: Various clinical and nonclinical staff in a tertiary care university hospital received pediatric vertical evacuation training sessions over a 6-wk period. The training consisted of disaster and evacuation didactics, hands-on training in use of evacuation equipment, and implementation of an evacuation toolkit.

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Objective: (), an extracellular pathogen lacking a cell wall, causes respiratory infection in adults and children and has been implicated in asthma exacerbation; immunoglobulin (Ig) E may be involved in these exacerbations. Specific IgM and IgG immune response to has been reported, but less is known about IgE antibody (Ab) responses in asthma. Previous studies in our laboratory demonstrated that asthmatic children have increased IgM levels, but not IgE.

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