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  1. Article ; Online: Fluid Management in Acute Respiratory Failure.

    Giovanni, Shewit P / Seitz, Kevin P / Hough, Catherine L

    Critical care clinics

    2024  Volume 40, Issue 2, Page(s) 291–307

    Abstract: Fluid management in acute respiratory failure is an area of uncertainty requiring a delicate balance of resuscitation and fluid removal to manage hypoperfusion and avoidance of hypoxemia. Overall, a restrictive fluid strategy (minimizing fluid ... ...

    Abstract Fluid management in acute respiratory failure is an area of uncertainty requiring a delicate balance of resuscitation and fluid removal to manage hypoperfusion and avoidance of hypoxemia. Overall, a restrictive fluid strategy (minimizing fluid administration) and careful attention to overall fluid balance may be beneficial after initial resuscitation and does not have major side effects. Further studies are needed to improve our understanding of patients who will benefit from a restrictive or liberal fluid management strategy.
    MeSH term(s) Humans ; Respiratory Distress Syndrome/therapy ; Resuscitation ; Water-Electrolyte Balance ; Respiratory Insufficiency/therapy
    Language English
    Publishing date 2024-02-06
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1006423-0
    ISSN 1557-8232 ; 0749-0704
    ISSN (online) 1557-8232
    ISSN 0749-0704
    DOI 10.1016/j.ccc.2024.01.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Exosomes in Allergic Airway Diseases.

    Hough, K P / Deshane, J S

    Current allergy and asthma reports

    2019  Volume 19, Issue 5, Page(s) 26

    Abstract: Purpose of review: This review will cover what is known regarding exosomes and allergy, and furthermore discuss novel mechanism of exosome-mediated immune modulation and metabolic regulation via the transfer of mitochondria.: Recent findings: ... ...

    Abstract Purpose of review: This review will cover what is known regarding exosomes and allergy, and furthermore discuss novel mechanism of exosome-mediated immune modulation and metabolic regulation via the transfer of mitochondria.
    Recent findings: Exosomes are nano-sized extracellular vesicles (EVs) derived from the endosome that play a direct role in governing physiological and pathological conditions by transferring bioactive cargo such as proteins, enzymes, nucleic acids (miRNA, mRNA, DNA), and metabolites. Recent evidence suggest that exosomes may signal in autocrine but, most importantly, in paracrine and endocrine manner, being taken up by neighboring cells or carried to distant sites. Exosomes also mediate immunogenic responses, such as antigen presentation and inflammation. In asthma and allergy, exosomes facilitate cross-talk between immune and epithelial cells, and drive site-specific inflammation through the generation of pro-inflammatory mediators like leukotrienes. Recent studies suggest that myeloid cell-generated exosomes transfer mitochondria to lymphocytes. Exosomes are nano-sized mediators of the immune system which can modulate responses through antigen presentation, and the transfer of pro- and anti-inflammatory mediators. In addition to conventional mechanisms of immune modulation, exosomes may act as a novel courier of functional mitochondria that is capable of modulating the recipient cells bioenergetics, resulting in altered cellular responses. The transfer of mitochondria and modulation of bioenergetics may result in immune activation or dampening depending on the context.
    MeSH term(s) Asthma/pathology ; Exosomes/metabolism ; Humans ; Hypersensitivity/metabolism ; Respiration Disorders/pathology
    Language English
    Publishing date 2019-03-22
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2057370-4
    ISSN 1534-6315 ; 1529-7322
    ISSN (online) 1534-6315
    ISSN 1529-7322
    DOI 10.1007/s11882-019-0857-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Cutting edge approaches for rapid characterization of airway exosomes.

    Hough, Kenneth P / Deshane, Jessy S

    Methods (San Diego, Calif.)

    2020  Volume 177, Page(s) 27–34

    Abstract: Exosomes have been described as promising biomarkers for understanding disease progression and prognosis. These lipid membrane nanoparticles derived from airway cells have been shown to have immunomodulatory effects, such as driving inflammatory ... ...

    Abstract Exosomes have been described as promising biomarkers for understanding disease progression and prognosis. These lipid membrane nanoparticles derived from airway cells have been shown to have immunomodulatory effects, such as driving inflammatory responses in asthma. These emerging evidences demonstrating an important pathophysiological role of exosomes warrants the development of novel approaches for isolation and rapid characterization of exosomes, which would be applicable for both translational and clinical studies. In this review article, we describe two methods of rapid exosomes characterization: (1) imaging flow cytometry using ImageStream; and (2) conventional flow cytometry using the BD Symphony A5 platform. We also explore sorting of exosomes using the BD Aria.
    MeSH term(s) Antigens, CD/genetics ; Antigens, CD/metabolism ; Asthma/diagnosis ; Asthma/genetics ; Asthma/metabolism ; Asthma/pathology ; Biomarkers/metabolism ; Bronchoalveolar Lavage Fluid/chemistry ; Centrifugation, Density Gradient/methods ; Exosomes/chemistry ; Flow Cytometry/instrumentation ; Flow Cytometry/methods ; Gene Expression ; HLA-DR Antigens/genetics ; HLA-DR Antigens/metabolism ; Humans ; Image Processing, Computer-Assisted ; Lung/metabolism ; Lung/pathology ; Software ; Ultracentrifugation/methods
    Chemical Substances Antigens, CD ; Biomarkers ; HLA-DR Antigens
    Language English
    Publishing date 2020-01-14
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1066584-5
    ISSN 1095-9130 ; 1046-2023
    ISSN (online) 1095-9130
    ISSN 1046-2023
    DOI 10.1016/j.ymeth.2020.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: In-Cell NMR within Budding Yeast Reveals Cytoplasmic Masking of Hydrophobic Residues of FG Repeats.

    Wall, Kathryn P / Hough, Loren E

    Biophysical journal

    2018  Volume 115, Issue 9, Page(s) 1690–1695

    Abstract: In-cell NMR spectroscopy is a powerful tool to determine the properties of proteins and nucleic acids within living cells. In-cell NMR can give site-specific measurements of interactions, modifications, and dynamics as well as their modulation by the ... ...

    Abstract In-cell NMR spectroscopy is a powerful tool to determine the properties of proteins and nucleic acids within living cells. In-cell NMR can give site-specific measurements of interactions, modifications, and dynamics as well as their modulation by the cellular environment. In-cell NMR requires selective incorporation of heavy isotopes into a protein of interest, either through the introduction of exogenously produced protein to a cell's interior or the selective overexpression of a protein. We developed conditions to allow the use of Saccharomyces cerevisiae, which was chosen because of its genetic tractability, as a eukaryotic expression system for in-cell NMR. We demonstrate this technique using a fragment of S. cerevisiae Nsp1, an FG Nup. FG Nups are intrinsically disordered proteins containing phenylalanine (F)-glycine (G) repeats and form the selective barrier within the nuclear pore complex. Yeast FG Nups have previously been shown to be maintained in a highly dynamic state within living bacteria as measured by in-cell NMR. Interactions thought to stabilize this dynamic state are also present in the protein's native organism, although site specificity of interaction is different between the two cytosols.
    MeSH term(s) Amino Acid Sequence ; Cytoplasm/metabolism ; Glycine ; Hydrophobic and Hydrophilic Interactions ; Molecular Dynamics Simulation ; Nuclear Magnetic Resonance, Biomolecular ; Nuclear Pore Complex Proteins/chemistry ; Nuclear Pore Complex Proteins/metabolism ; Nuclear Proteins/chemistry ; Nuclear Proteins/metabolism ; Phenylalanine ; Protein Conformation ; Repetitive Sequences, Amino Acid ; Saccharomyces cerevisiae/cytology ; Saccharomyces cerevisiae Proteins/chemistry ; Saccharomyces cerevisiae Proteins/metabolism
    Chemical Substances NSP1 protein, S cerevisiae ; Nuclear Pore Complex Proteins ; Nuclear Proteins ; Saccharomyces cerevisiae Proteins ; Phenylalanine (47E5O17Y3R) ; Glycine (TE7660XO1C)
    Language English
    Publishing date 2018-09-26
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 218078-9
    ISSN 1542-0086 ; 0006-3495
    ISSN (online) 1542-0086
    ISSN 0006-3495
    DOI 10.1016/j.bpj.2018.08.049
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Fluid management in ARDS: an evaluation of current practice and the association between early diuretic use and hospital mortality.

    Seitz, Kevin P / Caldwell, Ellen S / Hough, Catherine L

    Journal of intensive care

    2020  Volume 8, Page(s) 78

    Abstract: Background: Acute respiratory distress syndrome (ARDS) and volume overload are associated with increased hospital mortality. Evidence supports conservative fluid management in ARDS, but whether current practice reflects the implementation of that ... ...

    Abstract Background: Acute respiratory distress syndrome (ARDS) and volume overload are associated with increased hospital mortality. Evidence supports conservative fluid management in ARDS, but whether current practice reflects the implementation of that evidence has not been described. This study reports the variability in contemporary fluid management for ICU patients with ARDS. We compared routine care to trial protocols and analyzed whether more conservative management with diuretic medications in contemporary, usual care is associated with outcomes.
    Methods: We performed a retrospective cohort study in nine ICUs at two academic hospitals during 2016 and 2017. We included 234 adult patients with ARDS in an ICU at least 3 days after meeting moderate-severe ARDS criteria (PaO
    Results: In 48-72 h after meeting ARDS criteria, 116 patients (50%) received a diuretic. In-hospital mortality was lower in the group that received diuretics than in the group that did not (14% vs 25%;
    Conclusions: In this sample of ARDS patients, volume overload was common, and early diuretic use was independently associated with lower hospital mortality. These findings support the importance of fluid management in ARDS and suggest opportunities for further study and implementation of conservative fluid strategies into usual care.
    Keywords covid19
    Language English
    Publishing date 2020-10-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2739853-5
    ISSN 2052-0492
    ISSN 2052-0492
    DOI 10.1186/s40560-020-00496-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Cutting edge approaches for rapid characterization of airway exosomes

    Hough, Kenneth P / Deshane, Jessy S

    Methods. 2020 May 01, v. 177

    2020  

    Abstract: Exosomes have been described as promising biomarkers for understanding disease progression and prognosis. These lipid membrane nanoparticles derived from airway cells have been shown to have immunomodulatory effects, such as driving inflammatory ... ...

    Abstract Exosomes have been described as promising biomarkers for understanding disease progression and prognosis. These lipid membrane nanoparticles derived from airway cells have been shown to have immunomodulatory effects, such as driving inflammatory responses in asthma. These emerging evidences demonstrating an important pathophysiological role of exosomes warrants the development of novel approaches for isolation and rapid characterization of exosomes, which would be applicable for both translational and clinical studies. In this review article, we describe two methods of rapid exosomes characterization: (1) imaging flow cytometry using ImageStream; and (2) conventional flow cytometry using the BD Symphony A5 platform. We also explore sorting of exosomes using the BD Aria.
    Keywords asthma ; biomarkers ; clinical trials ; exosomes ; flow cytometry ; image analysis ; immunomodulators ; inflammation ; lipids ; nanoparticles
    Language English
    Dates of publication 2020-0501
    Size p. 27-34.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 1066584-5
    ISSN 1095-9130 ; 1046-2023
    ISSN (online) 1095-9130
    ISSN 1046-2023
    DOI 10.1016/j.ymeth.2020.01.003
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Stress and Work Performance Responses to a Multicomponent Intervention for Reducing and Breaking up Sitting in Office Workers: A Cluster Randomized Controlled Trial.

    Maylor, Benjamin D / Hough, John / Edwardson, Charlotte L / Zakrzewski-Fruer, Julia K / Bailey, Daniel P

    Journal of occupational and environmental medicine

    2023  Volume 65, Issue 12, Page(s) e744–e751

    Abstract: ... in the intervention group relative to controls at 8 weeks (-0.85; 95% confidence interval, -1.70 to 0.03 nmol·L -1 ... P ... relative to controls ( P ≤ 0.05).: Conclusions: This exploratory study suggests that there could be ...

    Abstract Objective: The aim of the study is to explore the potential of a sitting reduction workplace intervention for improving stress and work performance.
    Methods: A cluster randomized controlled trial evaluated an intervention to reduce and break up occupational sitting in 12 clusters ( n = 89 office workers) over 8 weeks. Outcomes were physiological stress (cortisol concentrations), perceived stress, and work performance.
    Results: Linear mixed model group × time interaction effects were nonsignificant. Exploratory analyses showed a trend, with a large effect, for lower cortisol concentrations over the day in the intervention group relative to controls at 8 weeks (-0.85; 95% confidence interval, -1.70 to 0.03 nmol·L -1

    P = 0.06, d = 0.79). The intervention group had higher vigor and cognitive liveliness at 8 weeks relative to controls ( P ≤ 0.05).
    Conclusions: This exploratory study suggests that there could be meaningful changes in physiological stress and work-related outcomes that should be investigated in future studies.
    MeSH term(s) Humans ; Sitting Position ; Work Performance ; Health Promotion ; Hydrocortisone ; Occupational Health ; Sedentary Behavior ; Workplace
    Chemical Substances Hydrocortisone (WI4X0X7BPJ)
    Language English
    Publishing date 2023-09-19
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1223932-x
    ISSN 1536-5948 ; 1076-2752
    ISSN (online) 1536-5948
    ISSN 1076-2752
    DOI 10.1097/JOM.0000000000002971
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Rasburicase dose optimization for tumor lysis syndrome management in a network of community oncology practices.

    Gilmore, Steven / Carroll, Melissa / Koselke, Elizabeth / Hough, Shannon

    Journal of oncology pharmacy practice : official publication of the International Society of Oncology Pharmacy Practitioners

    2023  , Page(s) 10781552231190005

    Abstract: ... revision population (mean 6.2 mg pre vs. 4.5 mg post, p < 0.00001) resulting in a reduced cost ...

    Abstract Introduction: Single, fixed-dose rasburicase administration has been evaluated as an effective strategy in the management of hyperuricemia in the hospital setting, but this has not yet been described within ambulatory community oncology practices. The objective of this study is to evaluate and optimize the dosing strategy for rasburicase in the management of tumor lysis syndrome (TLS)-associated hyperuricemia in The US Oncology Network (The Network).
    Methods: A network-wide guideline was revised to standardize rasburicase dosing from a previous recommended fixed doses of 4.5 or 7.5 mg to either 3 or 6 mg for outpatient rasburicase use in management and prevention of TLS. The primary outcome evaluated mean dose of rasburicase among all patients before and after guideline revision. A retrospective chart review evaluated secondary endpoints.
    Results: The primary analysis included 291 patients (128 pre-revised and 163 post-revised guideline implementation). The primary outcome, mean rasburicase dose, was reduced in the post-revision compared to the pre-revision population (mean 6.2 mg pre vs. 4.5 mg post, p < 0.00001) resulting in a reduced cost per rasburicase dose of $974. Fifty patients were included for the secondary analysis. Guideline concordance was identified in 12 (48%) and 16 patients (64%), and uric acid <8 mg/dL post-rasburicase administration occurred in 14 (56%) and 16 patients (64%) before and after guideline revision, respectively.
    Conclusions: Guideline revision and electronic health record modification resulted in a 27% reduction in the mean rasburicase dose and a 50% reduction in repeat rasburicase dosing without a negative impact on clinical efficacy.
    Language English
    Publishing date 2023-08-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1330764-2
    ISSN 1477-092X ; 1078-1552
    ISSN (online) 1477-092X
    ISSN 1078-1552
    DOI 10.1177/10781552231190005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Assessment of Symptom, Disability, and Financial Trajectories in Patients Hospitalized for COVID-19 at 6 Months.

    Admon, Andrew J / Iwashyna, Theodore J / Kamphuis, Lee A / Gundel, Stephanie J / Sahetya, Sarina K / Peltan, Ithan D / Chang, Steven Y / Han, Jin H / Vranas, Kelly C / Mayer, Kirby P / Hope, Aluko A / Jolley, Sarah E / Caldwell, Ellen / Monahan, Max L / Hauschildt, Katrina / Brown, Samuel M / Aggarwal, Neil R / Thompson, B Taylor / Hough, Catherine L

    JAMA network open

    2023  Volume 6, Issue 2, Page(s) e2255795

    Abstract: ... Rates increased between months 1 and 6 for cardiopulmonary symptoms (from 67.3% to 75.4%; P = .001) and ... fatigue (from 40.7% to 50.8%; P < .001). Decreases were noted over the same interval for prevalent ... financial problems (from 66.1% to 56.4%; P < .001) and functional limitations (from 55.3% to 47.3%; P = .004 ...

    Abstract Importance: Individuals who survived COVID-19 often report persistent symptoms, disabilities, and financial consequences. However, national longitudinal estimates of symptom burden remain limited.
    Objective: To measure the incidence and changes over time in symptoms, disability, and financial status after COVID-19-related hospitalization.
    Design, setting, and participants: A national US multicenter prospective cohort study with 1-, 3-, and 6-month postdischarge visits was conducted at 44 sites participating in the National Heart, Lung, and Blood Institute Prevention and Early Treatment of Acute Lung Injury Network's Biology and Longitudinal Epidemiology: COVID-19 Observational (BLUE CORAL) study. Participants included hospitalized English- or Spanish-speaking adults without severe prehospitalization disabilities or cognitive impairment. Participants were enrolled between August 24, 2020, and July 20, 2021, with follow-up occurring through March 30, 2022.
    Exposure: Hospitalization for COVID-19 as identified with a positive SARS-CoV-2 molecular test.
    Main outcomes and measures: New or worsened cardiopulmonary symptoms, financial problems, functional impairments, perceived return to baseline health, and quality of life. Logistic regression was used to identify factors associated with new cardiopulmonary symptoms or financial problems at 6 months.
    Results: A total of 825 adults (444 [54.0%] were male, and 379 [46.0%] were female) met eligibility criteria and completed at least 1 follow-up survey. Median age was 56 (IQR, 43-66) years; 253 (30.7%) participants were Hispanic, 145 (17.6%) were non-Hispanic Black, and 360 (43.6%) were non-Hispanic White. Symptoms, disabilities, and financial problems remained highly prevalent among hospitalization survivors at month 6. Rates increased between months 1 and 6 for cardiopulmonary symptoms (from 67.3% to 75.4%; P = .001) and fatigue (from 40.7% to 50.8%; P < .001). Decreases were noted over the same interval for prevalent financial problems (from 66.1% to 56.4%; P < .001) and functional limitations (from 55.3% to 47.3%; P = .004). Participants not reporting problems at month 1 often reported new symptoms (60.0%), financial problems (23.7%), disabilities (23.8%), or fatigue (41.4%) at month 6.
    Conclusions and relevance: The findings of this cohort study of people discharged after COVID-19 hospitalization suggest that recovery in symptoms, functional status, and fatigue was limited at 6 months, and some participants reported new problems 6 months after hospital discharge.
    MeSH term(s) Humans ; Male ; Female ; COVID-19/epidemiology ; SARS-CoV-2 ; Cohort Studies ; Prospective Studies ; Quality of Life ; Aftercare ; Patient Discharge
    Language English
    Publishing date 2023-02-01
    Publishing country United States
    Document type Multicenter Study ; Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2574-3805
    ISSN (online) 2574-3805
    DOI 10.1001/jamanetworkopen.2022.55795
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: COVID-19 Inflammatory Syndrome With Clinical Features Resembling Kawasaki Disease.

    Spencer, Robert / Closson, Ryan C / Gorelik, Mark / Boneparth, Alexis D / Hough, Rebecca F / Acker, Karen P / Krishnan, Usha

    Pediatrics

    2020  Volume 146, Issue 3

    Abstract: We describe 2 patients with coronavirus disease who had multiple clinical features suggestive of Kawasaki disease (KD). Both patients presented with fever lasting >5 days and were found to have rash, conjunctival injection, and swollen lips. One patient ... ...

    Abstract We describe 2 patients with coronavirus disease who had multiple clinical features suggestive of Kawasaki disease (KD). Both patients presented with fever lasting >5 days and were found to have rash, conjunctival injection, and swollen lips. One patient also had extremity swelling, whereas the other developed desquamation of the fingers. In both cases, laboratory results were similar to those seen in KD. These patients had highly unusual but similar features, and both appeared to respond favorably to treatment. It remains unclear whether these patients had true KD or manifestations of coronavirus disease that resembled KD.
    MeSH term(s) COVID-19 ; Child, Preschool ; Combined Modality Therapy ; Coronavirus Infections/diagnosis ; Coronavirus Infections/therapy ; Diagnosis, Differential ; Female ; Humans ; Immunoglobulins, Intravenous/administration & dosage ; Male ; Mucocutaneous Lymph Node Syndrome/diagnosis ; Mucocutaneous Lymph Node Syndrome/therapy ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/therapy ; Risk Assessment ; Sampling Studies ; Systemic Inflammatory Response Syndrome/diagnosis ; Systemic Inflammatory Response Syndrome/therapy ; Treatment Outcome
    Chemical Substances Immunoglobulins, Intravenous
    Keywords covid19
    Language English
    Publishing date 2020-08-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207677-9
    ISSN 1098-4275 ; 0031-4005
    ISSN (online) 1098-4275
    ISSN 0031-4005
    DOI 10.1542/peds.2020-1845
    Database MEDical Literature Analysis and Retrieval System OnLINE

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