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  1. Article ; Online: Carrier capability of halloysite nanotubes for the intracellular delivery of antisense PNA targeting mRNA of neuroglobin gene.

    Falanga, Andrea P / Massaro, Marina / Borbone, Nicola / Notarbartolo, Monica / Piccialli, Gennaro / Liotta, Leonarda F / Sanchez-Espejo, Rita / Viseras Iborra, Cesar / Raymo, Françisco M / Oliviero, Giorgia / Riela, Serena

    Journal of colloid and interface science

    2024  Volume 663, Page(s) 9–20

    Abstract: Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its ...

    Abstract Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its targeting gene action is limited. Halloysite nanotubes (HNTs) are a natural and low-cost aluminosilicate clay. Because of their peculiar ability to cross cellular membrane, HNTs represent a valuable candidate for delivering genetic materials into cells. Herein, two differently charged 12-mer PNAs capable of recognizing as molecular target a 12-mer DNA molecule mimicking a purine-rich tract of neuroglobin were synthetized and loaded onto HNTs by electrostatic attraction interactions. After characterization, the kinetic release was also assessed in media mimicking physiological conditions. Resonance light scattering measurements assessed their ability to bind complementary single-stranded DNA. Furthermore, their intracellular delivery was assessed by confocal laser scanning microscopy on living MCF-7 cells incubated with fluorescence isothiocyanate (FITC)-PNA and HNTs labeled with a probe. The nanomaterials were found to cross cellular membrane and cell nuclei efficiently. Finally, it is worth mentioning that the HNTs/PNA can reduce the level of neuroglobin gene expression, as shown by reverse transcription-quantitative polymerase chain reaction and western blotting analysis.
    MeSH term(s) Clay ; Neuroglobin ; RNA, Messenger/genetics ; DNA ; Nanotubes/chemistry
    Chemical Substances Clay (T1FAD4SS2M) ; Neuroglobin ; RNA, Messenger ; DNA (9007-49-2)
    Language English
    Publishing date 2024-02-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2024.02.136
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Genomic characterisation of the population structure and antibiotic resistance of

    Piña-Iturbe, Alejandro / Díaz-Gavidia, Constanza / Álvarez, Francisca P / Barron-Montenegro, Rocio / Álvarez-Espejo, Diana M / García, Patricia / Solís, Doina / Constenla-Albornoz, Rodrigo / Toro, Magaly / Olivares-Pacheco, Jorge / Reyes-Jara, Angélica / Meng, Jianghong / Bell, Rebecca L / Moreno-Switt, Andrea I

    Lancet regional health. Americas

    2024  Volume 32, Page(s) 100711

    Abstract: Background: Multidrug-resistant (MDR) : Methods: We sequenced 396 : Findings: The genomic and phylogenetic analyses showed that : Interpretation: Our findings show a widespread dissemination of MDR : Funding: Partially supported by the Food ... ...

    Abstract Background: Multidrug-resistant (MDR)
    Methods: We sequenced 396
    Findings: The genomic and phylogenetic analyses showed that
    Interpretation: Our findings show a widespread dissemination of MDR
    Funding: Partially supported by the Food and Drug Administration (FDA) of the U.S. Department of Health and Human Services as part of an award, FDU001818, with 30% percent funded by FDA/HHS; and by Agencia de Investigación y Desarrollo de Chile (ANID) through FONDECYT de Postdoctorado Folio 3230796 and Folio 3210317, FONDECYT Regular Folio 1231082, and ANID-Millennium Science Initiative Program-ICN2021_044.
    Language English
    Publishing date 2024-03-11
    Publishing country England
    Document type Journal Article
    ISSN 2667-193X
    ISSN (online) 2667-193X
    DOI 10.1016/j.lana.2024.100711
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Describing IgA Myeloma: An Immunophenotypic and Molecular Approach.

    Akgun, Yamac / Baykara, Yigit / Hacking, Sean M / Langlie, Jake / Huberman, Melissa Ann / Espejo, Andrea P / Chapman, Jennifer / Poveda, Julio

    Rhode Island medical journal (2013)

    2022  Volume 105, Issue 6, Page(s) 41–45

    Abstract: Plasma cell myeloma (PCM) is defined as a clonal disease of terminally differentiated plasma cells that secrete immunoglobulin. The biologic underpinnings of IgA-type multiple myeloma's (IgAMM) aggressive nature, including its increased morbidity and ... ...

    Abstract Plasma cell myeloma (PCM) is defined as a clonal disease of terminally differentiated plasma cells that secrete immunoglobulin. The biologic underpinnings of IgA-type multiple myeloma's (IgAMM) aggressive nature, including its increased morbidity and mortality, have not been elucidated. We describe the clinical, phenotypic, and cytogenetic characteristics of IgA-MM. Flow-cytometry analysis was performed to phenotype clonal plasma cell populations, and interface with fluorescent in situ hybridization (iFISH) to exploit cytogenetics to determine risk stratification; 68.1% of cases were of intermediate or high risk. On flow cytometry, samples from our IgA-PCM cohort revealed less frequent CD56 expression when compared to samples with other PCM subtypes. Our study demonstrated lower frequency of CD56 expression (52.8%). We hypothesize that loss of CD56 may play a significant role in the aggressive behavior of IgA-PCM due to the loss of cell-to-cell adhesion resulting in a higher propensity for extramedullary presentation.
    MeSH term(s) Humans ; Immunoglobulin A/genetics ; Immunoglobulin A/metabolism ; Immunophenotyping ; In Situ Hybridization, Fluorescence/methods ; Multiple Myeloma/diagnosis ; Multiple Myeloma/genetics ; Plasma Cells
    Chemical Substances Immunoglobulin A
    Language English
    Publishing date 2022-08-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 419430-5
    ISSN 2327-2228 ; 0363-7913
    ISSN (online) 2327-2228
    ISSN 0363-7913
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Consequences of sea level rise for high metal(loid) loads in the Ría of Huelva estuary sediments.

    Kerl, Carolin F / Basallote, M Dolores / Käberich, Merle / Oldani, Erica / Cerón Espejo, Nathalia P / Colina Blanco, Andrea E / Cánovas, Carlos Ruiz / Nieto, José Miguel / Planer-Friedrich, Britta

    The Science of the total environment

    2023  Volume 873, Page(s) 162354

    Abstract: Ría of Huelva, located in southwestern Spain, is a highly metal(loid)-contaminated estuary system where sediments are exceeding action limits in an increasing order for Cd, Zn, Pb, Cu, and As. With a predicted sea level rise over the next 50 years, the ... ...

    Abstract Ría of Huelva, located in southwestern Spain, is a highly metal(loid)-contaminated estuary system where sediments are exceeding action limits in an increasing order for Cd, Zn, Pb, Cu, and As. With a predicted sea level rise over the next 50 years, the estuary will be subject to flooding with brackish water or seawater. To evaluate the risk of metal(loid) mobilization under future climate scenarios, different locations along the estuary were sampled at different depths. Samples were flooded with river water, brackish water, and seawater under different short- and long-term laboratory setups. Potential metal(loid) mobilization showed that water quality standards for As, Pb, Zn, Ni, Cu, and Cd could be exceeded upon seawater flooding. However, metal(loid) mobilization was not predictable solely based on sediment loads. The driving factors for cation and anion mobility were identified to be mainly pH under low salinity and competitive desorption under high salinity conditions. Further drivers such as wave movement or labile C input in C-limited systems were found to enhance metal(loid) mobilization. Long-term flooding of intact sediment cores revealed that sea level rise will have different effects on the estuary system depending on duration of flooding. Short-term flooding in the near future will first affect alkaline sediments and enhance currently low cation mobilization, while anion mobilization due to reductive Fe dissolution will remain high. Once acidic sediments further inland are flooded with seawater, highest contaminant mobilization can be expected as high salinity will further enhance already high cation mobilization under acidic pH. Long-term flooding with seawater will neutralize the sediment pH and limit cation mobilization compared to acidic pH. However, the contaminant load stored in the estuary is so high that, extrapolating data obtained, mobilization could last for >1000 years, e.g. for As, Pb, and Al.
    Language English
    Publishing date 2023-02-22
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.162354
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Treatment of Disseminated Intravenous Leiomyomatosis With ALK Targeting Crizotinib: A Successful Case Report.

    Barreto-Coelho, Priscila / Rosenberg, Andrew / Subhawong, Ty / Costa, Philippos / Espejo-Freire, Andrea P / Bialick, Steven / Jonczak, Emily / Trent, Jonathan C / D'Amato, Gina Z

    JCO precision oncology

    2022  Volume 6, Page(s) e2100336

    MeSH term(s) Anaplastic Lymphoma Kinase/genetics ; Carcinoma, Non-Small-Cell Lung ; Crizotinib/therapeutic use ; Humans ; Leiomyomatosis/drug therapy ; Lung Neoplasms
    Chemical Substances Crizotinib (53AH36668S) ; Anaplastic Lymphoma Kinase (EC 2.7.10.1)
    Language English
    Publishing date 2022-02-02
    Publishing country United States
    Document type Case Reports ; Journal Article
    ISSN 2473-4284
    ISSN (online) 2473-4284
    DOI 10.1200/PO.21.00336
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Using photovoice to generate policy recommendations to improve the alcohol urban environment: A participatory action research project.

    Sandín Vázquez, María / Pastor, Andrea / Molina de la Fuente, Irene / Conde Espejo, Paloma / Sureda Llul, Francisca

    Health & place

    2023  Volume 84, Page(s) 103131

    Abstract: The place where we live, work and play may influence our alcohol drinking behaviours. This study aimed to present local policy recommendations on urban determinants for alcohol consumption prevention in a low-income and a high-income area of Madrid ( ... ...

    Abstract The place where we live, work and play may influence our alcohol drinking behaviours. This study aimed to present local policy recommendations on urban determinants for alcohol consumption prevention in a low-income and a high-income area of Madrid (Spain) using a participatory action research method, with photovoice and nominal group techniques. Participants (n = 26) engaged in a photovoice project initiated a process of critical reflection by discussing and analysing their alcohol environment based on photographs they took themselves. At the end of six week group discussion sessions, participants identified 33 themes related to their alcohol environment. They later met to translate the final categories into urban policy recommendations using a logical framework approach. Then, with a nominal group, they prioritized these recommendations based on time, impact, feasibility, and cost. Finally, participants produced a total of 61 policy recommendations for the improvement of the alcohol environment, highlighting the need for researcher-community collaborations when designing public health interventions.
    MeSH term(s) Humans ; Health Services Research ; Public Health ; Poverty ; Policy ; Spain ; Photography ; Community-Based Participatory Research
    Language English
    Publishing date 2023-10-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 1262540-1
    ISSN 1873-2054 ; 1353-8292
    ISSN (online) 1873-2054
    ISSN 1353-8292
    DOI 10.1016/j.healthplace.2023.103131
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Consequences of sea level rise for high metal(loid) loads in the Ría of Huelva estuary sediments

    Kerl, Carolin F. / Basallote, M. Dolores / Käberich, Merle / Oldani, Erica / Cerón Espejo, Nathalia P. / Colina Blanco, Andrea E. / Cánovas, Carlos Ruiz / Nieto, José Miguel / Planer-Friedrich, Britta

    Science of the Total Environment. 2023 May, v. 873 p.162354-

    2023  

    Abstract: Ría of Huelva, located in southwestern Spain, is a highly metal(loid)-contaminated estuary system where sediments are exceeding action limits in an increasing order for Cd, Zn, Pb, Cu, and As. With a predicted sea level rise over the next 50 years, the ... ...

    Abstract Ría of Huelva, located in southwestern Spain, is a highly metal(loid)-contaminated estuary system where sediments are exceeding action limits in an increasing order for Cd, Zn, Pb, Cu, and As. With a predicted sea level rise over the next 50 years, the estuary will be subject to flooding with brackish water or seawater. To evaluate the risk of metal(loid) mobilization under future climate scenarios, different locations along the estuary were sampled at different depths. Samples were flooded with river water, brackish water, and seawater under different short- and long-term laboratory setups. Potential metal(loid) mobilization showed that water quality standards for As, Pb, Zn, Ni, Cu, and Cd could be exceeded upon seawater flooding. However, metal(loid) mobilization was not predictable solely based on sediment loads. The driving factors for cation and anion mobility were identified to be mainly pH under low salinity and competitive desorption under high salinity conditions. Further drivers such as wave movement or labile C input in C-limited systems were found to enhance metal(loid) mobilization. Long-term flooding of intact sediment cores revealed that sea level rise will have different effects on the estuary system depending on duration of flooding. Short-term flooding in the near future will first affect alkaline sediments and enhance currently low cation mobilization, while anion mobilization due to reductive Fe dissolution will remain high. Once acidic sediments further inland are flooded with seawater, highest contaminant mobilization can be expected as high salinity will further enhance already high cation mobilization under acidic pH. Long-term flooding with seawater will neutralize the sediment pH and limit cation mobilization compared to acidic pH. However, the contaminant load stored in the estuary is so high that, extrapolating data obtained, mobilization could last for >1000 years, e.g. for As, Pb, and Al.
    Keywords brackish water ; cations ; climate ; desorption ; environment ; estuaries ; pH ; risk assessment ; river water ; salinity ; sea level ; seawater ; sediments ; water quality ; Spain ; Mining-impacted estuary ; Río Tinto ; Río Odiel ; Climate change ; Contaminants ; Metal(loid) mobilization
    Language English
    Dates of publication 2023-05
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.162354
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Review of Current Advances in Serologic Testing for COVID-19.

    Espejo, Andrea P / Akgun, Yamac / Al Mana, Abdulaziz F / Tjendra, Youley / Millan, Nicolas C / Gomez-Fernandez, Carmen / Cray, Carolyn

    American journal of clinical pathology

    2020  Volume 154, Issue 3, Page(s) 293–304

    Abstract: Objectives: To examine and summarize the current literature on serologic methods for the detection of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).: Methods: A literature review was performed using searches in databases ... ...

    Abstract Objectives: To examine and summarize the current literature on serologic methods for the detection of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
    Methods: A literature review was performed using searches in databases including PubMed, medRxiv, and bioRxiv. Thirty-two peer-reviewed papers and 23 preprints were examined.
    Results: The studies included lateral flow immunoassay, enzyme-linked immunosorbent assay, chemiluminescence immunoassay, and neutralizing antibody assays. The use of all major SARS-CoV-2 antigens was demonstrated to have diagnostic value. Assays measuring total antibody reactivity had the highest sensitivity. In addition, all the methods provided opportunities to characterize the humoral immune response by isotype. The combined use of IgM and IgG detection resulted in a higher sensitivity than that observed when detecting either isotype alone. Although IgA was rarely studied, it was also demonstrated to be a sensitive marker of infection, and levels correlated with disease severity and neutralizing activity.
    Conclusions: The use of serologic testing, in conjunction with reverse transcription polymerase chain reaction testing, was demonstrated to significantly increase the sensitivity of detection of patients infected with SARS-CoV-2. There was conflicting evidence regarding whether antibody titers correlated with clinical severity. However, preliminary investigations indicated some immunoassays may be a surrogate for the prediction of neutralizing antibody titers and the selection of recovered patients for convalescent serum donation.
    MeSH term(s) Antibody Formation ; Betacoronavirus ; COVID-19 ; COVID-19 Testing ; Clinical Laboratory Techniques ; Coronavirus ; Coronavirus Infections/diagnosis ; Humans ; Immunoglobulin G ; Pandemics ; Pneumonia, Viral ; SARS-CoV-2
    Chemical Substances Immunoglobulin G
    Keywords covid19
    Language English
    Publishing date 2020-06-09
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 2944-0
    ISSN 1943-7722 ; 0002-9173
    ISSN (online) 1943-7722
    ISSN 0002-9173
    DOI 10.1093/ajcp/aqaa112
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: In vivo antitumor activity by dual stromal and tumor-targeted oncolytic measles viruses.

    Jing, Yuqi / Chavez, Valery / Khatwani, Natasha / Ban, Yuguang / Espejo, Andrea P / Chen, Xi / Merchan, Jaime R

    Cancer gene therapy

    2020  Volume 27, Issue 12, Page(s) 910–922

    Abstract: The tumor stroma acts as a barrier that limits the efficacy of systemically administered oncolytic viruses (OV). We previously demonstrated that stromal-selective, retargeted oncolytic measles viruses (MVs) delay in vivo tumor progression. To further ... ...

    Abstract The tumor stroma acts as a barrier that limits the efficacy of systemically administered oncolytic viruses (OV). We previously demonstrated that stromal-selective, retargeted oncolytic measles viruses (MVs) delay in vivo tumor progression. To further characterize the contribution of stromal targeting to MV's overall in vivo efficacy in an experimental cancer model, a dual targeted oncolytic measles virus (MV-CD46-muPA) able to simultaneously infect murine stromal (via murine uPAR) and human cancer (via CD46) cells was developed. MV-CD46-muPA infected, replicated, and induced cytotoxicity in both murine and human cancer cells. Viral infection was successfully transferred from stromal to tumor cells in vitro, leading to tumor cell oncolysis. Systemic administration of MV-CD46-muPA led to improved antitumor effects in colon (HT-29) cancer xenografts compared to vehicle or CD46 only targeted MVs. These effects were associated with improved tumor viral deposition, increased apoptosis, and decreases in murine stromal endothelial cells and fibroblasts. MV-CD46-muPA modulated cell cycle, survival, proliferation, and metabolic pathways, as determined by functional proteomic analysis of treated tumors. The above findings further validate the concept that dual stromal and tumor cell viral targeting enhances the therapeutic effects of systemically administered OVs and support further preclinical and clinical development of stromal directed virotherapies.
    MeSH term(s) Animals ; Cell Line, Tumor ; Disease Models, Animal ; Female ; Humans ; In Vitro Techniques/methods ; Measles virus/genetics ; Mice ; Oncogenic Viruses/genetics ; Oncolytic Viruses/genetics
    Language English
    Publishing date 2020-03-31
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1212513-1
    ISSN 1476-5500 ; 0929-1903
    ISSN (online) 1476-5500
    ISSN 0929-1903
    DOI 10.1038/s41417-020-0171-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Predicting Disease Severity and Outcome in COVID-19 Patients: A Review of Multiple Biomarkers.

    Tjendra, Youley / Al Mana, Abdulaziz F / Espejo, Andrea P / Akgun, Yamac / Millan, Nicolas C / Gomez-Fernandez, Carmen / Cray, Carolyn

    Archives of pathology & laboratory medicine

    2020  Volume 144, Issue 12, Page(s) 1465–1474

    Abstract: Context.—: An abundance of clinical reports focused on specific laboratory parameters have been reported on coronavirus disease 19 (COVID-19), but a systematic analysis synthesizing these findings has not been performed.: Objective.—: To review and ... ...

    Abstract Context.—: An abundance of clinical reports focused on specific laboratory parameters have been reported on coronavirus disease 19 (COVID-19), but a systematic analysis synthesizing these findings has not been performed.
    Objective.—: To review and summarize the current available literature on the predictive role of various biomarkers in COVID-19 patients.
    Data sources.—: A literature search was performed using databases including PubMed, medRxiv, and bioRxiv. A total of 72 papers were reviewed, including 54 peer-reviewed papers and 18 non-peer-reviewed preprints.
    Conclusions.—: Although the markers are considered nonspecific, acute-phase reactants, including C-reactive protein (CRP), ferritin, serum amyloid A (SAA), and procalcitonin, were reported as sensitive markers of acute COVID-19 disease. Significantly elevated white blood cell count; marked lymphopenia; decreased CD3, CD4, or CD8 T-lymphocyte counts; high neutrophil count; thrombocytopenia; and markedly elevated inflammatory biomarkers were associated with severe disease and the risk of developing sepsis with rapid progression. Trends observed by serial laboratory measurements during hospitalization, including progressive decrease of lymphocyte count, thrombocytopenia, elevated CRP, procalcitonin, increased liver enzymes, decreased renal function, and coagulation derangements, were more common in critically ill patient groups and associated with a high incidence of clinical complications. Elevated interleukin 6 level and markedly increased SAA were most often reported in severely and critically ill patients. Indicators of systemic inflammation, such as neutrophil to lymphocyte ratio, systemic immune-inflammation index, or COVID-19 Severity Score, may be used to predict disease severity, outcome, and mortality. Interpretation of the data reported in the studies reviewed here is limited because of the study design (mostly retrospective), limited sample size, and a lack of defined clinical criteria.
    MeSH term(s) Biomarkers/blood ; COVID-19/blood ; COVID-19/diagnosis ; COVID-19/mortality ; COVID-19/therapy ; COVID-19 Testing/methods ; Global Health ; Hospitalization ; Humans ; Prognosis ; Severity of Illness Index
    Chemical Substances Biomarkers
    Keywords covid19
    Language English
    Publishing date 2020-08-18
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 194119-7
    ISSN 1543-2165 ; 0363-0153 ; 0096-8528 ; 0003-9985
    ISSN (online) 1543-2165
    ISSN 0363-0153 ; 0096-8528 ; 0003-9985
    DOI 10.5858/arpa.2020-0471-SA
    Database MEDical Literature Analysis and Retrieval System OnLINE

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