21 results on '"Gona S"'
Search Results
2. Isolated gastric outlet obstruction due to corrosive ingestion
- Author
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Lebeau, R., Coulibaly, A., Kountélé Gona, S., Koffi Gnangoran, M., Kouakou, B., Yapo, P., Assohoun, T., and Kanga Miessan, J.B.
- Published
- 2011
- Full Text
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3. Morphological and Molecular Identification of Adoretus hirsutus (Ohaus, 1914) (Coleoptera:Scarabaeidae:Rutelinae) from Erbil Governorate Kurdistan Region- Iraq
- Author
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Gona Sharif, Abbas Farage, and nabeel mawlood
- Subjects
molecular identification ,morphological study ,mt coi gene ,adoretus hirsutus ,sequencing ,Agriculture - Abstract
This study provides a detailed description of Adoretus hirsutus (Ohaus, 1914) (Coleoptera:Scarabaeidae: Rutelinae), as a first record in Iraq. Between March and July 2022, we collected specimens from various weed flowers in different locations within the Erbil Governorate, Kurdistan Region, Iraq. According to molecular analysis, Adoretus hirsutus was used as a source of samples for PCR amplification of the fragments (710 bp) of the mtCOI gene for phylogenetic analysis. To compare the nucleotide sequence with those of other insect species, a section of the mtCOI gene from the collected insect was aligned with the NCBI GenBank database using the BLAST tool. The BLAST results showed that the second record in the NCBI GenBank identity of insects. The COI sequence of Adoretus hirsutus was submitted to GenBank with accession numbers OQ4288117, OQ428818, and OQ428819. The morphological diagnostic characteristics of the species are; Labrum nearly cup shaped, lateral margins moderately concave with a row of small spines, median apical projection overhanging the mentum. Mandibles irregular shaped, apically with single oval shaped tooth. Terminal maxillary palpomere 1.5 times as long as the 2nd. Antenna brown, consisting of 10 antennomeres ending in a unilateral three lamellated club, equal in length. Outer margin of fore tibia with three acute teeth. Aedagaeus moderately curved, parameres elongated oval, apical part is very acute. Some important parts such as labrum, mandible, antenna, fore legs, elytra, pygidium and male genitalia have been photographed.
- Published
- 2023
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4. Measurement of conductivity of carbon fibers at microwave frequencies
- Author
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Gona, S., primary, Tomasek, P., additional, and Kresalek, V., additional
- Published
- 2013
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5. Design of Planar Reflector Antennas
- Author
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Gona, S., Raida, Zbyněk, Gona, S., and Raida, Zbyněk
- Abstract
A design of single and folded reflector antennas is presented. We focus in the use of an optimization during the design process. In comparison to existing papers, possibility of realization of folded antenna at X band frequencies is demonstrated. Further more, an original procedure of phase center extraction of antennas and scatters is described. The procedure is applied in the design of simple reflector antenna incorporating a non-hyperbolic, electrically small reflector.
- Published
- 2002
6. Accuracy of multilayer equivalent models for composite laminated materials
- Author
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Gona, S., primary and Kresalek, V., additional
- Published
- 2009
- Full Text
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7. Cydia pomonella (L.) (Lepidoptera: Tortricidae) Larvae Infestation on Apple Trees According to Canopy Aspects
- Author
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gona sirwan and Juhina Idrees Mohamad Ali
- Subjects
cydia pomonella ,fallen fruit ,larval infestation ,monitoring and upon tree distribution ,Technology ,Science - Abstract
The codling moth (Cydia pomonella L.) is one of the most important pests existing in the apple orchards of the Hiran-Iraq northern part, according to the climate of Iraq Codling moth has 2‒3 generations per year. This study conducted to calculate the relation between distribution of codling moth and canopy aspects and also to estimate the relationship between diameter and height of trees with fallen fruits. The results revealed that the highest infestation recorded by second generation of codling moth which was 0.952, the highest mean values of the fallen fruit were 38.600, regarding canopy aspects the highest infestations were recorded in the South followed East and North side compare to West or Middle side, and also this investigation confirmed that there is a significant influence of tree height and rate of infestations by codling moth. This study concluded, that canopy aspects, height and diameter of trees, with climate condition such as temperature and humidity effect apple orchards infestation by codling moth.
- Published
- 2019
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8. Development of a Versatile Planar Periodic Structure Simulator in MATLAB.
- Author
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Gona, S. and Kfesdlek, V.
- Published
- 2008
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9. Role of a management team in improving ace inhibitor dosing for heart failure
- Author
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ROBISON, B, primary, GONA, S, additional, MOZERSKY, R, additional, LUZIER, A, additional, FEUERSTEIN, S, additional, SCHENTAG, J, additional, and IZZOJR, J, additional
- Published
- 1999
- Full Text
- View/download PDF
10. Automated Design of Frequency Selective Surfaces with the Application to Wi-Fi Band-stop Filter.
- Author
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Tomasek, P. and Gona, S.
- Subjects
FREQUENCY selective surfaces ,ELECTROMAGNETISM ,WIRELESS Internet ,WIRELESS communications ,ELECTRIC conductivity ,DIELECTRICS - Abstract
This article presents a technique for analysis and automated design of frequency selective surfaces. In this work the method of moments is used to analyse a planar periodic structure. The approach allows to automate the whole process of the filter design and frees the users from the detailed knowledge of the filter design theory. For the practical part of the paper, the algorithm of Levenberg-Marquardt is chosen as a local optimisation method. Whole process of automation is implemented in Matlab. An optimisation of a band-stop filter for Wi-Fi signals serves as a practical example. A Wi-Fi device communicating under standard 802.11b or 802.11g uses a specific channel which has frequency between 2.412 and 2.484 GHz. Therefore the goal is to design a band-stop filter which ideally does not transmit mentioned band of frequencies. The geometry of Jerusalem-cross serves as a structure to be optimized. Four design variables are defined for optimisation: the width and the height of a periodic cell (a square), the width of an arm and two other variables which influence the length of an outer arm and the length of the whole structure of the Jerusalem-cross. This filter consists of two dielectrically separated conductive layers which make the filter more narrow-band. S-parameters of the final optimized geometry of the Wi-Fi filter are presented in the paper. [ABSTRACT FROM AUTHOR]
- Published
- 2013
11. scPrediXcan integrates advances in deep learning and single-cell data into a powerful cell-type-specific transcriptome-wide association study framework.
- Author
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Zhous Y, Adeluwa T, Zhu L, Salazar-Magaña S, Sumner S, Kim H, Gona S, Nyasimi F, Kulkarni R, Powell J, Madduri R, Liu B, Chen M, and Im HK
- Abstract
Transcriptome-wide association studies (TWAS) help identify disease causing genes, but often fail to pinpoint disease mechanisms at the cellular level because of the limited sample sizes and sparsity of cell-type-specific expression data. Here we propose scPrediXcan which integrates state-of-the-art deep learning approaches that predict epigenetic features from DNA sequences with the canonical TWAS framework. Our prediction approach, ctPred, predicts cell-type-specific expression with high accuracy and captures complex gene regulatory grammar that linear models overlook. Applied to type 2 diabetes and systemic lupus erythematosus, scPrediXcan outperformed the canonical TWAS framework by identifying more candidate causal genes, explaining more genome-wide association studies (GWAS) loci, and providing insights into the cellular specificity of TWAS hits. Overall, our results demonstrate that scPrediXcan represents a significant advance, promising to deepen our understanding of the cellular mechanisms underlying complex diseases., Competing Interests: Declaration of Interests Authors declare no conflict of interests.
- Published
- 2024
- Full Text
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12. Acute Cholecystitis Due to Lactococcus lactis and Single-Center Experience With Infections Due to Lactococcus spp.
- Author
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Karunaratne J, Gona S, George A, and Bonatti HJR
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- Humans, Male, Middle Aged, Cholecystectomy, Laparoscopic, Cholecystitis, Acute microbiology, Cholecystitis, Acute surgery, Gram-Positive Bacterial Infections microbiology, Gram-Positive Bacterial Infections diagnosis, Lactococcus isolation & purification, Lactococcus lactis isolation & purification
- Abstract
Background: Lactococcus species are used to ferment milk to yogurt, cheese, and other products. The gram-positive coccus causes diseases in amphibia and fish and is a rare human pathogen. Patients and Methods: A 51-year-old male underwent laparoscopic cholecystectomy for acute and chronic calculous cholecystitis. Lactococcus lactis was isolated from pus from his gallbladder empyema. Results: Our institutional database was searched for other cases of Lactococcus spp. infections and four patients (2 males, 2 females; aged 51, 64, 78, and 80 years) were identified during a four-year period. The three other patients had positive blood cultures associated with pneumonia, toxic megacolon, and severe gastroenteritis. All isolates were monocultures with Lactococcus lactis (2), Lactococcus garvieae (1) and Lactococcus raffinolactis (1). Two patients died related to their sepsis. We report the second case of cholecystitis involving Lactococcus . Conclusions: Lactococcus is a very rare pathogen mainly causing blood stream infections but needs to be considered to cause serious surgical infections in humans.
- Published
- 2024
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13. A host-directed oxadiazole compound potentiates antituberculosis treatment via zinc poisoning in human macrophages and in a mouse model of infection.
- Author
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Maure A, Lawarée E, Fiorentino F, Pawlik A, Gona S, Giraud-Gatineau A, Eldridge MJG, Danckaert A, Hardy D, Frigui W, Keck C, Gutierrez C, Neyrolles O, Aulner N, Mai A, Hamon M, Barreiro LB, Brodin P, Brosch R, Rotili D, and Tailleux L
- Subjects
- Animals, Humans, Mice, Mice, Inbred C57BL, Female, Drug Synergism, Oxadiazoles pharmacology, Antitubercular Agents pharmacology, Antitubercular Agents therapeutic use, Mycobacterium tuberculosis drug effects, Zinc metabolism, Macrophages drug effects, Macrophages metabolism, Disease Models, Animal, Tuberculosis drug therapy
- Abstract
Antituberculosis drugs, mostly developed over 60 years ago, combined with a poorly effective vaccine, have failed to eradicate tuberculosis. More worryingly, multiresistant strains of Mycobacterium tuberculosis (MTB) are constantly emerging. Innovative strategies are thus urgently needed to improve tuberculosis treatment. Recently, host-directed therapy has emerged as a promising strategy to be used in adjunct with existing or future antibiotics, by improving innate immunity or limiting immunopathology. Here, using high-content imaging, we identified novel 1,2,4-oxadiazole-based compounds, which allow human macrophages to control MTB replication. Genome-wide gene expression analysis revealed that these molecules induced zinc remobilization inside cells, resulting in bacterial zinc intoxication. More importantly, we also demonstrated that, upon treatment with these novel compounds, MTB became even more sensitive to antituberculosis drugs, in vitro and in vivo, in a mouse model of tuberculosis. Manipulation of heavy metal homeostasis holds thus great promise to be exploited to develop host-directed therapeutic interventions., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Maure et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
- Full Text
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14. Epigenetic variation impacts individual differences in the transcriptional response to influenza infection.
- Author
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Aracena KA, Lin YL, Luo K, Pacis A, Gona S, Mu Z, Yotova V, Sindeaux R, Pramatarova A, Simon MM, Chen X, Groza C, Lougheed D, Gregoire R, Brownlee D, Boye C, Pique-Regi R, Li Y, He X, Bujold D, Pastinen T, Bourque G, and Barreiro LB
- Subjects
- Humans, Individuality, Quantitative Trait Loci genetics, Chromosome Mapping, Epigenesis, Genetic, Influenza, Human genetics
- Abstract
Humans display remarkable interindividual variation in their immune response to identical challenges. Yet, our understanding of the genetic and epigenetic factors contributing to such variation remains limited. Here we performed in-depth genetic, epigenetic and transcriptional profiling on primary macrophages derived from individuals of European and African ancestry before and after infection with influenza A virus. We show that baseline epigenetic profiles are strongly predictive of the transcriptional response to influenza A virus across individuals. Quantitative trait locus (QTL) mapping revealed highly coordinated genetic effects on gene regulation, with many cis-acting genetic variants impacting concomitantly gene expression and multiple epigenetic marks. These data reveal that ancestry-associated differences in the epigenetic landscape can be genetically controlled, even more than gene expression. Lastly, among QTL variants that colocalized with immune-disease loci, only 7% were gene expression QTL, while the remaining genetic variants impact epigenetic marks, stressing the importance of considering molecular phenotypes beyond gene expression in disease-focused studies., (© 2024. The Author(s), under exclusive licence to Springer Nature America, Inc.)
- Published
- 2024
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15. Antigen-driven colonic inflammation is associated with development of dysplasia in primary sclerosing cholangitis.
- Author
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Shaw DG, Aguirre-Gamboa R, Vieira MC, Gona S, DiNardi N, Wang A, Dumaine A, Gelderloos-Arends J, Earley ZM, Meckel KR, Ciszewski C, Castillo A, Monroe K, Torres J, Shah SC, Colombel JF, Itzkowitz S, Newberry R, Cohen RD, Rubin DT, Quince C, Cobey S, Jonkers IH, Weber CR, Pekow J, Wilson PC, Barreiro LB, and Jabri B
- Subjects
- Humans, Inflammation complications, Cholangitis, Sclerosing complications, Cholangitis, Sclerosing pathology, Inflammatory Bowel Diseases complications, Inflammatory Bowel Diseases pathology, Colorectal Neoplasms pathology
- Abstract
Primary sclerosing cholangitis (PSC) is an immune-mediated disease of the bile ducts that co-occurs with inflammatory bowel disease (IBD) in almost 90% of cases. Colorectal cancer is a major complication of patients with PSC and IBD, and these patients are at a much greater risk compared to patients with IBD without concomitant PSC. Combining flow cytometry, bulk and single-cell transcriptomics, and T and B cell receptor repertoire analysis of right colon tissue from 65 patients with PSC, 108 patients with IBD and 48 healthy individuals we identified a unique adaptive inflammatory transcriptional signature associated with greater risk and shorter time to dysplasia in patients with PSC. This inflammatory signature is characterized by antigen-driven interleukin-17A (IL-17A)
+ forkhead box P3 (FOXP3)+ CD4 T cells that express a pathogenic IL-17 signature, as well as an expansion of IgG-secreting plasma cells. These results suggest that the mechanisms that drive the emergence of dysplasia in PSC and IBD are distinct and provide molecular insights that could guide prevention of colorectal cancer in individuals with PSC., (© 2023. The Author(s).)- Published
- 2023
- Full Text
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16. Transposable elements are associated with the variable response to influenza infection.
- Author
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Chen X, Pacis A, Aracena KA, Gona S, Kwan T, Groza C, Lin YL, Sindeaux R, Yotova V, Pramatarova A, Simon MM, Pastinen T, Barreiro LB, and Bourque G
- Abstract
Influenza A virus (IAV) infections are frequent every year and result in a range of disease severity. Here, we wanted to explore the potential contribution of transposable elements (TEs) to the variable human immune response. Transcriptome profiling in monocyte-derived macrophages from 39 individuals following IAV infection revealed significant inter-individual variation in viral load post-infection. Using transposase-accessible chromatin using sequencing (ATAC-seq), we identified a set of TE families with either enhanced or reduced accessibility upon infection. Of the enhanced families, 15 showed high variability between individuals and had distinct epigenetic profiles. Motif analysis showed an association with known immune regulators (e.g., BATFs, FOSs/JUNs, IRFs, STATs, NFkBs, NFYs, and RELs) in stably enriched families and with other factors in variable families, including KRAB-ZNFs. We showed that TEs and host factors regulating TEs were predictive of viral load post-infection. Our findings shed light on the role TEs and KRAB-ZNFs may play in inter-individual variation in immunity., Competing Interests: The authors declare no competing interests., (© 2023 The Authors.)
- Published
- 2023
- Full Text
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17. Neonatal imprinting of alveolar macrophages via neutrophil-derived 12-HETE.
- Author
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Pernet E, Sun S, Sarden N, Gona S, Nguyen A, Khan N, Mawhinney M, Tran KA, Chronopoulos J, Amberkar D, Sadeghi M, Grant A, Wali S, Prevel R, Ding J, Martin JG, Thanabalasuriar A, Yipp BG, Barreiro LB, and Divangahi M
- Subjects
- Animals, Mice, Acute Lung Injury, Animals, Newborn, Arachidonate 12-Lipoxygenase deficiency, Arachidonate 15-Lipoxygenase deficiency, COVID-19, Influenza A virus, Lipopolysaccharides, Lung cytology, Lung virology, Orthomyxoviridae Infections, Prostaglandins E, SARS-CoV-2, Disease Susceptibility, 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid metabolism, Cell Self Renewal, Macrophages, Alveolar cytology, Macrophages, Alveolar metabolism, Neutrophils metabolism
- Abstract
Resident-tissue macrophages (RTMs) arise from embryonic precursors
1,2 , yet the developmental signals that shape their longevity remain largely unknown. Here we demonstrate in mice genetically deficient in 12-lipoxygenase and 15-lipoxygenase (Alox15-/- mice) that neonatal neutrophil-derived 12-HETE is required for self-renewal and maintenance of alveolar macrophages (AMs) during lung development. Although the seeding and differentiation of AM progenitors remained intact, the absence of 12-HETE led to a significant reduction in AMs in adult lungs and enhanced senescence owing to increased prostaglandin E2 production. A compromised AM compartment resulted in increased susceptibility to acute lung injury induced by lipopolysaccharide and to pulmonary infections with influenza A virus or SARS-CoV-2. Our results highlight the complexity of prenatal RTM programming and reveal their dependency on in trans eicosanoid production by neutrophils for lifelong self-renewal., (© 2023. The Author(s).)- Published
- 2023
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18. GATA4 controls regionalization of tissue immunity and commensal-driven immunopathology.
- Author
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Earley ZM, Lisicka W, Sifakis JJ, Aguirre-Gamboa R, Kowalczyk A, Barlow JT, Shaw DG, Discepolo V, Tan IL, Gona S, Ernest JD, Matzinger P, Barreiro LB, Morgun A, Bendelac A, Ismagilov RF, Shulzhenko N, Riesenfeld SJ, and Jabri B
- Subjects
- Animals, Humans, Mice, Actinobacillus, Immunity, Mucosal, Interleukin-17 immunology, Interleukin-17 metabolism, Intestine, Small, Symbiosis, Enterobacteriaceae Infections, Gastrointestinal Microbiome immunology, GATA4 Transcription Factor metabolism, Intestinal Mucosa immunology, Intestinal Mucosa microbiology
- Abstract
There is growing recognition that regionalization of bacterial colonization and immunity along the intestinal tract has an important role in health and disease. Yet, the mechanisms underlying intestinal regionalization and its dysregulation in disease are not well understood. This study found that regional epithelial expression of the transcription factor GATA4 controls bacterial colonization and inflammatory tissue immunity in the proximal small intestine by regulating retinol metabolism and luminal IgA. Furthermore, in mice without jejunal GATA4 expression, the commensal segmented filamentous bacteria promoted pathogenic inflammatory immune responses that disrupted barrier function and increased mortality upon Citrobacter rodentium infection. In celiac disease patients, low GATA4 expression was associated with metabolic alterations, mucosal Actinobacillus, and increased IL-17 immunity. Taken together, these results reveal broad impacts of GATA4-regulated intestinal regionalization on bacterial colonization and tissue immunity, highlighting an elaborate interdependence of intestinal metabolism, immunity, and microbiota in homeostasis and disease., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2022 Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
19. Aberrant T-cell exhaustion in severe combined immunodeficiency survivors with poor T-cell reconstitution after transplantation.
- Author
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Labrosse R, Boufaied I, Bourdin B, Gona S, Randolph HE, Logan BR, Bourbonnais S, Berthe C, Chan W, Buckley RH, Parrott RE, Cuvelier GDE, Kapoor N, Chandra S, Dávila Saldaña BJ, Eissa H, Goldman FD, Heimall J, O'Reilly R, Chaudhury S, Kolb EA, Shenoy S, Griffith LM, Pulsipher M, Kohn DB, Notarangelo LD, Pai SY, Cowan MJ, Dvorak CC, Haddad É, Puck JM, Barreiro LB, and Decaluwe H
- Subjects
- Humans, CD8-Positive T-Lymphocytes, T-Cell Exhaustion, Receptors, Antigen, T-Cell, Severe Combined Immunodeficiency, Hematopoietic Stem Cell Transplantation, Lymphopenia
- Abstract
Background: Severe combined immunodeficiency (SCID) comprises rare inherited disorders of immunity that require definitive treatment through hematopoietic cell transplantation (HCT) or gene therapy for survival. Despite successes of allogeneic HCT, many SCID patients experience incomplete immune reconstitution, persistent T-cell lymphopenia, and poor long-term outcomes., Objective: We hypothesized that CD4
+ T-cell lymphopenia could be associated with a state of T-cell exhaustion in previously transplanted SCID patients., Methods: We analyzed markers of exhaustion in blood samples from 61 SCID patients at a median of 10.4 years after HCT., Results: Compared to post-HCT SCID patients with normal CD4+ T-cell counts, those with poor T-cell reconstitution showed lower frequency of naive CD45RA+ /CCR7+ T cells, recent thymic emigrants, and TCR excision circles. They also had a restricted TCR repertoire, increased expression of inhibitory receptors (PD-1, 2B4, CD160, BTLA, CTLA-4), and increased activation markers (HLA-DR, perforin) on their total and naive CD8+ T cells, suggesting T-cell exhaustion and aberrant activation, respectively. The exhaustion score of CD8+ T cells was inversely correlated with CD4+ T-cell count, recent thymic emigrants, TCR excision circles, and TCR diversity. Exhaustion scores were higher among recipients of unconditioned HCT, especially when further in time from HCT. Patients with fewer CD4+ T cells showed a transcriptional signature of exhaustion., Conclusions: Recipients of unconditioned HCT for SCID may develop late post-HCT T-cell exhaustion as a result of diminished production of T-lineage cells. Elevated expression of inhibitory receptors on their T cells may be a biomarker of poor long-term T-cell reconstitution., (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2023
- Full Text
- View/download PDF
20. Prenatal Exposure to Cadmium and Cotinine and CpG island DNA methylation in Mother-Infant Pairs.
- Author
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Gona S, Sanders AP, Miranda ML, and Fry RC
- Abstract
A precise biological mechanism by which cadmium acts as a developmental toxicant is unknown but is suggested to include an epigenetic basis. In prior work, we analyzed CpG island methylation levels within gene promoters (n=16,421) in leukocytes collected from mothers and their infants from a pregnancy cohort in Durham County, North Carolina. The CpG methylation levels were examined in relationship to prenatal exposure to cadmium and/or cotinine to identify genes and pathways influenced by in utero exposure. In the present article, we provide an enhanced description of the data collection and processing to facilitate cross-study comparisons. Data are available within the Gene Expression Omnibus database (GSE67976).
- Published
- 2015
- Full Text
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21. Recurrent erosions of the cornea: epidemiology and treatment.
- Author
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Reidy JJ, Paulus MP, and Gona S
- Subjects
- Administration, Topical, Adolescent, Adult, Aged, Corneal Ulcer etiology, Epithelium, Corneal pathology, Epithelium, Corneal surgery, Equipment Design, Female, Humans, Incidence, Lasers, Excimer, Male, Middle Aged, Ointments administration & dosage, Recurrence, Retrospective Studies, Contact Lenses, Extended-Wear, Corneal Ulcer epidemiology, Corneal Ulcer therapy, Debridement instrumentation, Photorefractive Keratectomy methods, Punctures instrumentation, Saline Solution, Hypertonic administration & dosage
- Abstract
Purpose: To evaluate the epidemiologic characteristics of a large clinical population of patients with recurrent erosions of the cornea. The efficacy of different modalities of treatment was also evaluated., Methods: A retrospective chart review of all patients with the diagnosis of recurrent corneal erosion treated between January 1990 and December 1998 was performed., Results: Clinically confirmed recurrent erosions were identified in 104 patients. There were 36 males and 68 females. A history of trauma was present in 47 patients (45%), 30 patients (29%) had epithelial basement membrane dystrophy (EBMD), and 18 patients (17%) had both a history of trauma and evidence of EBMD. More than 87% of all erosions occurred on the inferior third of the cornea. Conservative therapy was used as the primary treatment in 52 patients with a recurrence rate of 6%. Corneal stromal micropuncture was performed on 38 patients with a recurrence rate of 40%. Eleven patients had epithelial debridement with a recurrence rate of 18%. Four patients had a superficial keratectomy with a diamond bur with a recurrence rate of 25%. Only one patient had an excimer phototherapeutic keratectomy, and she had a minor recurrence posttreatment., Conclusions: In our series, the distribution of trauma and EBMD in patients with recurrent erosions of the cornea is roughly equivalent. Conservative therapy was effective in approximately one half of the patients. All surgical treatment modalities were associated with recurrences. Those patients with both EBMD and trauma were more likely to have a recurrence after treatment. More effective treatment modalities for recurrent erosions of the cornea need to be investigated.
- Published
- 2000
- Full Text
- View/download PDF
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