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Peptenatu D, Băloi AM, Andronic O, Bolocan A, Cioran N, Gruia AK, Grecu A, Panciu TC, Georgescu L, Munteanu I, Pistol A, Furtunescu F, Strâmbu IR, Ibrahim E, Băiceanu D, Popescu GG, Păduraru D, Jinga V, Mahler B. Spatio-Temporal Pattern of Tuberculosis Distribution in Romania and Particulate Matter Pollution Associated With Risk of Infection. Geohealth 2024; 8:e2023GH000972. [PMID: 38638801 PMCID: PMC11025721 DOI: 10.1029/2023gh000972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 04/20/2024]
Abstract
The study proposes a dynamic spatio-temporal profile of the distribution of tuberculosis incidence and air pollution in Romania, where this infectious disease induces more than 8,000 new cases annually. The descriptive analysis for the years 2012-2021 assumes an identification of the structuring patterns of mycobacterium tuberculosis risk in the Romanian population, according to gender and age, exploiting spatial modeling techniques of time series data. Through spatial autocorrelation, the degree of similarity between the analyzed territorial systems was highlighted and the relationships that are built between the analysis units in spatial proximity were investigated. By modeling the geographical distribution of tuberculosis, the spatial correlation with particulate matter (PM2.5) pollution was revealed. The identification of clusters of infected persons is an indispensable step in the construction of efficient tuberculosis management systems. The results highlight the link between the distribution of tuberculosis, air pollution and socio-economic development, which requires a detailed analysis of the epidemiological data obtained in the national tuberculosis surveillance and control program from the perspective of geographical distribution.
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Affiliation(s)
- D. Peptenatu
- Faculty of GeographyResearch Center for Integrated Analysis and Territorial Management (CAIMT)University of BucharestBucharestRomania
- Graphit Innovation FactoryStr.Constantin BrancoveanuDrobeta Turnu SeverinRomâniaRomânia
| | - A. M. Băloi
- Faculty of GeographyResearch Center for Integrated Analysis and Territorial Management (CAIMT)University of BucharestBucharestRomania
- Graphit Innovation FactoryStr.Constantin BrancoveanuDrobeta Turnu SeverinRomâniaRomânia
- Faculty of Administration and BusinessUniversity of BucharestBucharestRomania
| | - O. Andronic
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - A. Bolocan
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - N. Cioran
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - A. K. Gruia
- Faculty of Administration and BusinessUniversity of BucharestBucharestRomania
| | - A. Grecu
- Faculty of Administration and BusinessUniversity of BucharestBucharestRomania
| | - T. C. Panciu
- Marius Nasta Institute of PneumologyBucharestRomania
| | - L. Georgescu
- Marius Nasta Institute of PneumologyBucharestRomania
| | - I. Munteanu
- Marius Nasta Institute of PneumologyBucharestRomania
| | - A. Pistol
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - F. Furtunescu
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - I. R. Strâmbu
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - E. Ibrahim
- Marius Nasta Institute of PneumologyBucharestRomania
| | - D. Băiceanu
- Marius Nasta Institute of PneumologyBucharestRomania
| | - G. G. Popescu
- Marius Nasta Institute of PneumologyBucharestRomania
| | - D. Păduraru
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - V. Jinga
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - B. Mahler
- Carol Davila University of Medicine and PharmacyBucharestRomania
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Stoichita A, Ghita M, Mahler B, Vlasceanu S, Ghinet A, Mosteanu M, Cioacata A, Udrea A, Marcu A, Mitra GD, Ionescu CM, Iliesiu A. Imagistic Findings Using Artificial Intelligence in Vaccinated versus Unvaccinated SARS-CoV-2-Positive Patients Receiving In-Care Treatment at a Tertiary Lung Hospital. J Clin Med 2023; 12:7115. [PMID: 38002725 PMCID: PMC10672398 DOI: 10.3390/jcm12227115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/27/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND In December 2019 the World Health Organization announced that the widespread severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection had become a global pandemic. The most affected organ by the novel virus is the lung, and imaging exploration of the thorax using computer tomography (CT) scanning and X-ray has had an important impact. MATERIALS AND METHODS We assessed the prevalence of lung lesions in vaccinated versus unvaccinated SARS-CoV-2 patients using an artificial intelligence (AI) platform provided by Medicai. The software analyzes the CT scans, performing the lung and lesion segmentation using a variant of the U-net convolutional network. RESULTS We conducted a cohort study at a tertiary lung hospital in which we included 186 patients: 107 (57.52%) male and 59 (42.47%) females, of which 157 (84.40%) were not vaccinated for SARS-CoV-2. Over five times more unvaccinated patients than vaccinated ones are admitted to the hospital and require imaging investigations. More than twice as many unvaccinated patients have more than 75% of the lungs affected. Patients in the age group 30-39 have had the most lung lesions at almost 69% of both lungs affected. Compared to vaccinated patients with comorbidities, unvaccinated patients with comorbidities had developed increased lung lesions by 5%. CONCLUSION The study revealed a higher percentage of lung lesions among unvaccinated SARS-CoV-2-positive patients admitted to The National Institute of Pulmonology "Marius Nasta" in Bucharest, Romania, underlining the importance of vaccination and also the usefulness of artificial intelligence in CT interpretation.
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Affiliation(s)
- Alexandru Stoichita
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania; (B.M.); (S.V.); (A.I.)
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
| | - Maria Ghita
- Research Group of Dynamical Systems and Control, Ghent University, 9052 Ghent, Belgium; (M.G.); (C.M.I.)
- Faculty of Medicine and Health Sciences, Antwerp University, 2610 Wilrijk, Belgium
| | - Beatrice Mahler
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania; (B.M.); (S.V.); (A.I.)
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
| | - Silviu Vlasceanu
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania; (B.M.); (S.V.); (A.I.)
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
| | - Andreea Ghinet
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
| | - Madalina Mosteanu
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
- Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Andreea Cioacata
- “Marius Nasta” Institute of Pneumology, 050159 Bucharest, Romania; (A.G.); (M.M.); (A.C.)
| | - Andreea Udrea
- Medicai, 020961 Bucharest, Romania; (A.U.); (A.M.); (G.D.M.)
| | - Alina Marcu
- Medicai, 020961 Bucharest, Romania; (A.U.); (A.M.); (G.D.M.)
| | | | - Clara Mihaela Ionescu
- Research Group of Dynamical Systems and Control, Ghent University, 9052 Ghent, Belgium; (M.G.); (C.M.I.)
- Automation Department, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania
| | - Adriana Iliesiu
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania; (B.M.); (S.V.); (A.I.)
- Clinical Hospital “Prof. Dr. Th. Burghele”, 061344 Bucharest, Romania
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Margineanu I, Butnaru T, Gafar F, Baiceanu D, Dragomir R, Semianiv I, Mihaltan F, Munteanu I, Mahler B, Todoriko L, Margineanu S, Akkerman O, Stienstra Y, Alffenaar JWC. TB therapeutic drug monitoring - analysis of opportunities in Romania and Ukraine. Int J Tuberc Lung Dis 2023; 27:816-821. [PMID: 37880891 PMCID: PMC10599412 DOI: 10.5588/ijtld.22.0667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 04/14/2023] [Indexed: 10/27/2023] Open
Abstract
INTRODUCTION: Therapeutic drug monitoring (TDM) could improve TB treatment outcomes by avoiding drug toxicity or underdosing. In this study, we describe the patient burden in three TB centres in Romania and Ukraine with a TDM indication, as per the current guidelines, in order to estimate the feasibility of implementing TDM.METHODS: A retrospective multi-centre study was conducted at the Iasi Lung Hospital (Iasi, Romania), Bucharest Marius Nasta Institute (Bucharest, Romania) and Chernivtsi TB Centre (Chernivtsi, Ukraine) in adult hospitalised TB patients.RESULTS: A total of 927 participants were admitted, of whom 37.8% had at least one indication for TDM, the most frequent being slow response to TB treatment (202/345, 58.6%); 55.5% had at least one cavity present on chest X-ray. Patients with a TDM indication stayed in the hospital for a median of 67 days and took on average 2 months more to reach a successful TB outcome.CONCLUSION: TDM could be a valuable tool to improve management of selected TB patients. The decision on whether to perform TDM is often delayed by 2 months due to waiting for culture results after treatment initiation. A randomised control trial should be performed in order to define TDM's precise role in TB therapy.
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Affiliation(s)
- I Margineanu
- Department of Clinical Pharmacy and Pharmacology, University Medical Centrum Groningen, University of Groningen, Groningen, The Netherlands
| | - T Butnaru
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - F Gafar
- Unit of Pharmacotherapy, Epidemiology and Economics, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands
| | - D Baiceanu
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - R Dragomir
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - I Semianiv
- Chernivtsi TB Expertise Centre, Bukovinian State Medical University, Chernivtsi, Ukraine
| | - F Mihaltan
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - I Munteanu
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - B Mahler
- Prof Dr Marius Nasta Institute for Pneumology, Bucharest, Romania
| | - L Todoriko
- Chernivtsi TB Expertise Centre, Bukovinian State Medical University, Chernivtsi, Ukraine
| | - S Margineanu
- Department of Computer and Data Sciences, Ion Ionescu de la Brad Iasi University of Life Sciences, Iasi, Romania
| | - O Akkerman
- Department of Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, University of Groningen, Groningen, Tuberculosis Center Beatrixoord, University Medical Center Groningen, University of Groningen, Haren
| | - Y Stienstra
- Department of Internal Medicine/Infectious Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands, Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - J-W C Alffenaar
- Department of Clinical Pharmacy and Pharmacology, University Medical Centrum Groningen, University of Groningen, Groningen, The Netherlands, Faculty of Medicine and Health, School of Pharmacy, and, Sydney Institute for Infectious Diseases, The University of Sydney, Sydney, NSW, Westmead Hospital, Sydney, NSW, Australia
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Taraș R, Mahler B, Bălgrădean M, Derewicz D, Lazăr MI, Vidlescu R, Berghea F. The Role of Mannose-Binding Lectin and Inflammatory Markers in Establishing the Course and Prognosis of Community-Acquired Pneumonia in Children. Children (Basel) 2023; 10:1744. [PMID: 38002835 PMCID: PMC10670250 DOI: 10.3390/children10111744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Community-acquired pneumonia (CAP) is one of the most significant childhood diseases worldwide and a leading infectious cause of death in children. This study aimed to evaluate the prognostic value of the inflammatory markers-C-reactive protein (CRP) and procalcitonin (PCT)-and the polymorphic glycoprotein mannose-binding lectin (MBL), deficiency of which is associated with severe infections, in the determination of the optimal type and timing of therapeutic intervention for CAP in childhood. METHODS Retrospective evaluation was conducted on a cohort of 204 children aged 4 months-17 years hospitalized with CAP. Their levels of CRP, PCT, and MBL were assessed for their association with a variety of outcomes, including the incidence of local and systemic complications, admission to the ICU, duration of antibiotic treatment and hospital stay, and death. RESULTS CRP and PCT proved to be better predictors of complications of CAP than MBL. The area under the curve (AUC) value was highest for PCT as a predictor of systemic complications (AUC = 0.931, 95%CI 0.895-0.967), while CRP (AUC = 0.674, 95%CI 0.586-0.761) performed best as a predictor of local complications (AUC = 0.674, 95%CI 0.586-0.761). Regarding admission to the ICU, CRP was the weakest predictor (AUC = 0.741), while PCT performed the best (AUC = 0.833), followed by MBL (AUC = 0.797). Sensitivity and specificity were calculated for the optimal threshold generated by receiver operating characteristic (ROC) curves, rendering sensitivity of 90% and specificity of 87% for PCT in assessing the risk of systemic complications, compared to sensitivity of 83% and specificity of 90% for CRP. MBL showed relatively high sensitivity (96%) but low specificity (25%) for predicting the need for ICU admission. CONCLUSIONS Early measurement of CRP, PCT, and MBL provides clinicians with important information regarding the course and prognosis of children diagnosed with CAP, thus ensuring prompt, optimal therapeutic management.
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Affiliation(s)
- Roxana Taraș
- Department of Paediatrics, “Dr. Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.T.); (M.B.); (D.D.)
- Emergency Clinical Hospital for Children “Maria S. Curie”, 077120 Bucharest, Romania;
| | - Beatrice Mahler
- Department of Pneumophthisiology II, University of Medicine and Pharmacy “Carol Davila” Bucharest, 020021 Bucharest, Romania;
- “Marius Nasta” Institute of Pneumophthisiology, 050159 Bucharest, Romania
| | - Mihaela Bălgrădean
- Department of Paediatrics, “Dr. Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.T.); (M.B.); (D.D.)
- Emergency Clinical Hospital for Children “Maria S. Curie”, 077120 Bucharest, Romania;
| | - Diana Derewicz
- Department of Paediatrics, “Dr. Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.T.); (M.B.); (D.D.)
- Emergency Clinical Hospital for Children “Maria S. Curie”, 077120 Bucharest, Romania;
| | - Miruna Ioana Lazăr
- Emergency Clinical Hospital for Children “Maria S. Curie”, 077120 Bucharest, Romania;
| | - Ruxandra Vidlescu
- Department of Paediatrics, “Dr. Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (R.T.); (M.B.); (D.D.)
- Emergency Clinical Hospital for Children “Maria S. Curie”, 077120 Bucharest, Romania;
| | - Florian Berghea
- Department of Internal Medicine and Rheumatology, “Dr. Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
- “Sfânta Maria” Clinical Hospital, 011172 Bucharest, Romania
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5
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Munteanu I, Gheorghevici C, Coca CC, Diaconu GA, Sandru AE, Feraru N, Popa A, Nemes R, Mahler B. Co-Occurrence of Rheumatoid Arthritis and Lung Cancer-Coincidence or Not? Life (Basel) 2023; 13:2089. [PMID: 37895470 PMCID: PMC10608471 DOI: 10.3390/life13102089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Bronchopulmonary cancer is the leading cause of cancer deaths globally. Rheumatoid arthritis is one of the risk factors for lung cancer, and those who use methotrexate have a higher risk of developing lung cancer. We present the case of an 80-year-old patient who is a former smoker and is known to have rheumatoid arthritis, being treated using methotrexate; they were brought by ambulance to the emergency room for coughing with ineffective expectoration, dyspnea on slight exertion, and right-lateral chest pain with onset about one month prior and progressive worsening. Imaging showed a 7 cm/6 cm LID tumorous lung formation with parietal invasion and C7 rib lysis, as well as diffuse fibrotic interstitial changes predominantly in the lower lobes. An ultrasound-guided transthoracic lung biopsy was performed, and histopathological examination established the diagnosis of invasive squamous cell lung carcinoma, G2. In conclusion, the chest pain interpreted by the patient as rheumatic pain delayed the diagnosis of lung cancer; the patient presented rather late to the hospital once respiratory failure set in.
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Affiliation(s)
- Ioana Munteanu
- Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania; (I.M.)
- “Marius Nasta” Institute of Pneumophtisyiology, 050159 Bucharest, Romania (B.M.)
| | | | | | | | | | - Nicolae Feraru
- “Marius Nasta” Institute of Pneumophtisyiology, 050159 Bucharest, Romania (B.M.)
| | - Andreea Popa
- “Marius Nasta” Institute of Pneumophtisyiology, 050159 Bucharest, Romania (B.M.)
| | - Roxana Nemes
- Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania; (I.M.)
- “Marius Nasta” Institute of Pneumophtisyiology, 050159 Bucharest, Romania (B.M.)
| | - Beatrice Mahler
- “Marius Nasta” Institute of Pneumophtisyiology, 050159 Bucharest, Romania (B.M.)
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Vasiliu A, Köhler N, Altpeter E, Ægisdóttir TR, Amerali M, de Oñate WA, Bakos Á, D'Amato S, Cirillo DM, van Crevel R, Davidaviciene E, Demuth I, Domínguez J, Duarte R, Günther G, Guthmann JP, Hatzianastasiou S, Holm LH, Herrador Z, Hribar U, Huberty C, Ibraim E, Jackson S, Jensenius M, Josefsdottir KS, Koch A, Korzeniewska-Kosela M, Kuksa L, Kunst H, Lienhardt C, Mahler B, Makek MJ, Muylle I, Normark J, Pace-Asciak A, Petrović G, Pieridou D, Russo G, Rzhepishevska O, Salzer HJF, Marques MS, Schmid D, Solovic I, Sukholytka M, Svetina P, Tyufekchieva M, Vasankari T, Viiklepp P, Villand K, Wallenfels J, Wesolowski S, Mandalakas AM, Martinez L, Zenner D, Lange C. Tuberculosis incidence in foreign-born people residing in European countries in 2020. Euro Surveill 2023; 28:2300051. [PMID: 37855907 PMCID: PMC10588305 DOI: 10.2807/1560-7917.es.2023.28.42.2300051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/12/2023] [Indexed: 10/20/2023] Open
Abstract
BackgroundEuropean-specific policies for tuberculosis (TB) elimination require identification of key populations that benefit from TB screening.AimWe aimed to identify groups of foreign-born individuals residing in European countries that benefit most from targeted TB prevention screening.MethodsThe Tuberculosis Network European Trials group collected, by cross-sectional survey, numbers of foreign-born TB patients residing in European Union (EU) countries, Iceland, Norway, Switzerland and the United Kingdom (UK) in 2020 from the 10 highest ranked countries of origin in terms of TB cases in each country of residence. Tuberculosis incidence rates (IRs) in countries of residence were compared with countries of origin.ResultsData on 9,116 foreign-born TB patients in 30 countries of residence were collected. Main countries of origin were Eritrea, India, Pakistan, Morocco, Romania and Somalia. Tuberculosis IRs were highest in patients of Eritrean and Somali origin in Greece and Malta (both > 1,000/100,000) and lowest among Ukrainian patients in Poland (3.6/100,000). They were mainly lower in countries of residence than countries of origin. However, IRs among Eritreans and Somalis in Greece and Malta were five times higher than in Eritrea and Somalia. Similarly, IRs among Eritreans in Germany, the Netherlands and the UK were four times higher than in Eritrea.ConclusionsCountry of origin TB IR is an insufficient indicator when targeting foreign-born populations for active case finding or TB prevention policies in the countries covered here. Elimination strategies should be informed by regularly collected country-specific data to address rapidly changing epidemiology and associated risks.
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Affiliation(s)
- Anca Vasiliu
- Baylor College of Medicine, Department of Pediatrics, Global and Immigrant Health, Global Tuberculosis Program, Houston, Texas, United States
| | - Niklas Köhler
- Division of Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany
- German Center for Infection Research (DZIF), TTU-TB, Borstel, Germany
- Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany
| | - Ekkehardt Altpeter
- Swiss Federal Office of Public Health, Division of Communicable Diseases, Bern, Switzerland
| | - Tinna Rán Ægisdóttir
- The National University Hospital of Iceland, Pharmaceutical Services, Reykjavik, Iceland
| | - Marina Amerali
- Tuberculosis Control Office, Department of Respiratory Infections, Directorate for Epidemiological Surveillance & Intervention, National Public Health Organization (NPHO), Athens, Greece
| | - Wouter Arrazola de Oñate
- Belgian Lung and Tuberculosis Association, Brussels, Belgium
- Flemish Association of Respiratory Health and TB Control, Leuven, Belgium
| | - Ágnes Bakos
- Koranyi National Institute for Pulmonology, Budapest, Hungary
| | - Stefania D'Amato
- Prevention of Communicable Diseases and International Prophylaxis, General Direction of Health Prevention, Ministry of Health of Italy, Rome, Italy
| | - Daniela Maria Cirillo
- Emerging Bacterial Pathogens Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Reinout van Crevel
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Edita Davidaviciene
- Vilnius University hospital Santaros Klinikos, Department of Tuberculosis State information system, Vilnius, Lithuania
| | | | - Jose Domínguez
- Institut d'Investigació Germans Trias i Pujol; Universitat Autònoma de Barcelona; CIBER Enfermedades Respiratorias; INNOVA4TB consortium Badalona, Barcelona, Spain
| | - Raquel Duarte
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto
- ISPUP - Instituto de Saúde Pública da Universidade do Porto, Porto, Portugal
- Centro Hospitalar de Vila Nova de Gaia/Espinho, Porto, Portugal
| | - Gunar Günther
- Department of Pulmonary Medicine and Allergology, Inselspital, Bern University Hospital, University of Bern, Switzerland
- Department of Medical Sciences, School of Medicine, University of Namibia, Windhoek, Namibia
| | - Jean-Paul Guthmann
- Division of Infectious Diseases, Santé publique France, Saint-Maurice, France
| | - Sophia Hatzianastasiou
- Tuberculosis Control Office, Department of Respiratory Infections, Directorate for Epidemiological Surveillance & Intervention, National Public Health Organization (NPHO), Athens, Greece
| | - Louise Hedevang Holm
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Zaida Herrador
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Urška Hribar
- Tuberculosis Register of the Republic of Slovenia, University Clinic Golnik, Golnik, Slovenia
| | | | - Elmira Ibraim
- Marius Nasta Institute of Pulmonology, Bucharest, Romania
| | - Sarah Jackson
- Infectious Diseases; Health Service Executive Health Protection Surveillance Centre, Dublin, Ireland
| | - Mogens Jensenius
- Department of Infectious Diseases, Oslo University Hospital, Ullevaal, Norway
| | | | - Anders Koch
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
- Department of Infectious Diseases, Rigshospitalet University Hospital, Copenhagen, Denmark
| | - Maria Korzeniewska-Kosela
- Department of Tuberculosis Epidemiology and Surveillance, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Liga Kuksa
- Riga East University Hospital, TB and Lung Disease Clinic, Riga, Latvia
| | - Heinke Kunst
- Blizard Institute, The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Christian Lienhardt
- Unité Unité Mixte Internationale 233 IRD - U1175 INSERM - Université de Montpellier, Institut de Recherche pour le Développement (IRD), Montpellier, France
- Epidemiology and Population Health, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Beatrice Mahler
- Marius Nasta Institute of Pulmonology, Bucharest, Romania
- Department Cardio-thoracic, Pneumophtisiology II, University of Medicine and Pharmacy "Carol Davila" Bucharest, Romania
| | - Mateja Janković Makek
- University of Zagreb, School of Medicine Zagreb, Croatia
- University Hospital Centre Zagreb, Department for Lung diseases, Zagreb, Croatia
| | - Inge Muylle
- Division of Pneumology, Onze-Lieve-Vrouw Ziekenhuis (OLV) Aalst, Aalst, Belgium
| | - Johan Normark
- Department of Clinical Microbiology, Umeå University, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, Sweden
| | - Analita Pace-Asciak
- Infectious Disease Prevention and Control Unit, Health Promotion and Disease Prevention Directorate, Superintendence of Public Health, Ministry for Health of Malta, La Valetta, Malta
| | - Goranka Petrović
- Respiratory Diseases and Travel Medicine Department with Vaccination Unit, Infectious Diseases Epidemiology ServiceDepartment, Croatian Institute of Public Health, Zagreb, Croatia
| | - Despo Pieridou
- Cyprus National Reference Laboratory for Mycobacteria, Microbiology Department, Nicosia General Hospital, Nicosia, Cyprus
| | - Giulia Russo
- Emerging Bacterial Pathogens Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Olena Rzhepishevska
- Department of Chemistry, Department of Clinical Microbiology, Umeå University, Sweden
| | - Helmut J F Salzer
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine 4- Pneumology, Kepler University Hospital, Linz, Austria
- Faculty of Medicine, Johannes-Kepler-University, Linz, Austria and Ignaz Semmelweis Institut, Interuniversity Institute for Infection Resarch, Vienna, Austria
| | | | - Daniela Schmid
- Unit for Infectious Diseases Diagnostics and Infectious Diseases Epidemiology, Centre for Pathophysiology, Infectious Diseases and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ivan Solovic
- National Institute for TB, Lung Diseases and Thoracic Surgery, Vysne Hagy, Slovakia
- Catholic University Ruzomberok, Ruzomberok, Slovakia
| | - Mariya Sukholytka
- First Faculty of Medicine and Faculty Thomayer Hospital Prague, Czechia
| | - Petra Svetina
- National TB Program and Tuberculosis Registry of Republic of Slovenia, University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
| | - Mariya Tyufekchieva
- Health Promotion and Prevention Unit, Directorate Public Health Protection and Health Control, Ministry of Health of Bulgaria, Sofia, Bulgaria
| | - Tuula Vasankari
- University of Turku, Division of Medicine, Department of Pulmonary Diseases and Clinical Allergology, Turku, Finland
- Finnish Lung Health Association (Filha ry), Helsinki, Finland
| | - Piret Viiklepp
- Estonian Tuberculosis Register, Dept. of Registries, National Institute for Health Development, Tallinn, Estonia
| | - Kersti Villand
- Estonian Tuberculosis Register, Dept. of Registries, National Institute for Health Development, Tallinn, Estonia
| | - Jiri Wallenfels
- National TB Surveillance Unit, University Hospital Bulovka, Prague, Czechia
| | - Stefan Wesolowski
- Department of Tuberculosis Epidemiology and Surveillance, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Anna-Maria Mandalakas
- Baylor College of Medicine, Department of Pediatrics, Global and Immigrant Health, Global Tuberculosis Program, Houston, Texas, United States
- Division of Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany
| | - Leonardo Martinez
- Boston University, School of Public Health, Department of Epidemiology, Boston, Massachusetts, United States
| | - Dominik Zenner
- Global Public Health Unit, Wolfson Institute of Population Health Barts
- The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Christoph Lange
- Baylor College of Medicine, Department of Pediatrics, Global and Immigrant Health, Global Tuberculosis Program, Houston, Texas, United States
- Division of Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany
- German Center for Infection Research (DZIF), TTU-TB, Borstel, Germany
- Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany
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7
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Leonte I, Ivanov K, Marghescu AȘ, Matache ȘR, Negru FV, Iorga AL, Dumitru SM, Mahler B. Sequence of Rare Diagnoses in a Young Patient: Altitude Barotrauma Hemopneumothorax and Desquamative Interstitial Pneumonia. Diagnostics (Basel) 2023; 13:2367. [PMID: 37510111 PMCID: PMC10378536 DOI: 10.3390/diagnostics13142367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
We present the case of a 35-year-old patient without pathological history who developed hemopneumothorax due to altitude barotrauma during a commercial airline flight. The computed tomography (CT) of the chest identified the presence of right hydropneumothorax and emphysema "blebs" and bubbles. After the therapeutic insertion of a drain tube, the patient returned to the country by land transport. Three weeks later, he was diagnosed with right-sided pleurisy based on a CT scan with contrast material. A surgical intervention was then performed, and three biopsy samples were taken; the histopathological result highlighted suggestive elements for the diagnosis of desquamative interstitial pneumonia (DIP).
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Affiliation(s)
- Iustina Leonte
- Institute of Pneumology "Marius Nasta", 050159 Bucharest, Romania
| | - Karina Ivanov
- Institute of Pneumology "Marius Nasta", 050159 Bucharest, Romania
| | | | - Șerban Radu Matache
- Institute of Pneumology "Marius Nasta", 050159 Bucharest, Romania
- Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | | | - Ana Luiza Iorga
- Institute of Pneumology "Marius Nasta", 050159 Bucharest, Romania
- Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | | | - Beatrice Mahler
- Institute of Pneumology "Marius Nasta", 050159 Bucharest, Romania
- Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania
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8
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Munteanu I, Marc M, Gheorghevici C, Diaconu GA, Feraru N, Sion D, Nemes RM, Mahler B. Sleep Quality Aspects in Post-COVID-19 Patients. J Pers Med 2023; 13:1125. [PMID: 37511738 PMCID: PMC10381792 DOI: 10.3390/jpm13071125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/07/2023] [Accepted: 07/09/2023] [Indexed: 07/30/2023] Open
Abstract
In this observational cohort study, sleep quality in post-COVID-19 patients was assessed using the Pittsburgh Sleep Quality Index (PSQI) questionnaire. This study aimed to examine aspects of sleep quality in patients who have undergone SARS-CoV-2 infection and if there is a pattern of progression or regression over time (6 months). We also observed and analyzed the results in order to identify any possible links between the severity of COVID-19 and sleep quality as measured by the PSQI questionnaire. The study group consisted of 65 adult patients with confirmed SARS-CoV-2 infection who were referred to a pulmonologist for evaluation. Sleep quality was impacted at a high rate in post-COVID-19 patients, quantified by a PSQI score ≥5. Out of 65 patients, 51% of them had scores greater than or equal to 5. Sleep was subjectively reported as unsatisfactory predominantly in mild and moderate COVID-19 patients. According to the PSQI score and a 6-month follow-up, many patients presented persistency in poor sleep quality. Investigation and individualized treatment of sleep disorders in post-COVID-19 patients should be part of the routine pneumological control, as improvement in sleep quality has an impact not only on the health but also on the psychological state of patients. Educating patients about the importance of sleep and sleep quality impairment should be a primary concern.
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Affiliation(s)
- Ioana Munteanu
- Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania
- "Marius Nasta" Institute of Pneumophtisyiology, 050159 Bucharest, Romania
| | - Monica Marc
- Department of Pneumology, "Victor Babes" University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | | | | | - Nicolae Feraru
- "Marius Nasta" Institute of Pneumophtisyiology, 050159 Bucharest, Romania
| | - Dragos Sion
- "Marius Nasta" Institute of Pneumophtisyiology, 050159 Bucharest, Romania
| | - Roxana Maria Nemes
- Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania
- "Marius Nasta" Institute of Pneumophtisyiology, 050159 Bucharest, Romania
| | - Beatrice Mahler
- "Marius Nasta" Institute of Pneumophtisyiology, 050159 Bucharest, Romania
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9
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Cârstea AP, Mită A, Fortofoiu MC, Doica IP, Cârstea D, Beznă CM, Negroiu CE, Diaconu ID, Georgescu AR, Kamal AM, Mahler B, Grigorie AG, Dobrinescu GA. How Dexamethasone Used in Anti-COVID-19 Therapy Influenced Antihypertensive Treatment in Patients with SARS-CoV-2. Healthcare (Basel) 2023; 11:healthcare11101399. [PMID: 37239685 DOI: 10.3390/healthcare11101399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/06/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND During the SARS-CoV-2 pandemic period, in the treatment approved by the WHO, along with antivirals, antibiotics, nonsteroidal anti-inflammatory drugs and anticoagulants, dexamethasone was always used. This study started from the professional concern related to the vasopressor effect of cortisone on blood pressure (BP). METHODS The study group was achieved by selecting, from a total of 356 patients hospitalized in the clinic, the patients with known hypertensive status at admission for SARS-CoV-2. Dexamethasone was part of the anti-COVID-19 treatment, with an administration of 4-6-8 mg/day, depending on bodyweight, for 10 days. All patients with hypertension received antihypertensive treatment in adjusted doses according to the recorded BP values. RESULTS Monitoring of BP in hospitalized patients was performed daily, in the morning and evening. If on the 2nd day of treatment, 84% of the patients partially responded to the treatment with a moderate decrease in BP, on the 3rd therapy day, the situation clearly improved: more than 75% of the patients had values of BP that can be classified as high-normal (38.23%) and normal (40.03%). CONCLUSIONS Dexamethasone for treatment of SARS-CoV-2 infection did not have a notable influence on increasing BP, because the doses were low-moderate and prescribed for a short time.
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Affiliation(s)
- Andrei Puiu Cârstea
- Department of Physiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Cardiology, Clinical Municipal Hospital "Philanthropy" of Craiova, 200143 Craiova, Romania
| | - Adrian Mită
- Department of Medical Semiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Internal Medicine 2-Gastroenterology Compartment, "Philanthropy" Clinical Municipal Hospital of Craiova, 200143 Craiova, Romania
| | - Mircea-Cătălin Fortofoiu
- Department of Medical Semiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Internal Medicine 2-Gastroenterology Compartment, "Philanthropy" Clinical Municipal Hospital of Craiova, 200143 Craiova, Romania
| | - Irina Paula Doica
- Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Doina Cârstea
- Department of Cardiology, Clinical Municipal Hospital "Philanthropy" of Craiova, 200143 Craiova, Romania
- Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Cristina Maria Beznă
- Department of Cardiology, Clinical County Emergency Hospital of Craiova, 200642 Craiova, Romania
| | - Cristina Elena Negroiu
- Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Cardiology, Clinical County Emergency Hospital of Craiova, 200642 Craiova, Romania
| | - Ileana-Diana Diaconu
- Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Pediatric Pneumology, National Institute of Pneumology "Marius Nasta" of Bucharest, 050159 Bucharest, Romania
| | - Andreea-Roberta Georgescu
- Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Emergency Medicine, Clinical County Emergency Hospital of Craiova, 200642 Craiova, Romania
| | - Adina Maria Kamal
- Department of Internal Medicine, Faculty of Midwives and General Nursing, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Internal Medicine 1, "Philanthropy" Clinical Municipal Hospital of Craiova, 200143 Craiova, Romania
| | - Beatrice Mahler
- Department of Pneumology, University of Medicine and Pharmacy "Carol Davila" Bucharest, 020021 Bucharest, Romania
- National Institute of Pneumophtisiology "Marius Nasta", 050159 Bucharest, Romania
| | - Adriana-Gabriela Grigorie
- Department of Physiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Leamna Pneumophtisiology Hospital, Leamna de Sus, 207129 Dolj, Romania
| | - Gabriel Adrian Dobrinescu
- Department of Thoracic Surgery, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Thoracic Surgery, Clinical County Emergency Hospital of Craiova, 200642 Craiova, Romania
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10
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Preda M, Tănase BC, Zob DL, Gheorghe AS, Lungulescu CV, Dumitrescu EA, Stănculeanu DL, Manolescu LSC, Popescu O, Ibraim E, Mahler B. The Bidirectional Relationship between Pulmonary Tuberculosis and Lung Cancer. Int J Environ Res Public Health 2023; 20:1282. [PMID: 36674038 PMCID: PMC9859200 DOI: 10.3390/ijerph20021282] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Lung cancer and pulmonary tuberculosis are two significant public health problems that continue to take millions of lives each year. They may have similar symptoms and, in some cases, are diagnosed simultaneously or may have a causal relationship. In tuberculosis disease, the chronic inflammation, different produced molecules, genomic changes, and fibrosis are believed to be important factors that may promote carcinogenesis. As a reverse reaction, the development of carcinogenesis and the treatment may induce the reactivation of latent tuberculosis infection. Moreover, the recently used checkpoint inhibitors are a debatable subject since they help treat lung cancer but may lead to the reactivation of pulmonary tuberculosis and checkpoint-induced pneumonitis. Pulmonary rehabilitation is an effective intervention in post-tuberculosis patients and lung cancer patients and should be recommended to improve outcomes in these pathologies.
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Affiliation(s)
- Mădălina Preda
- Marius Nasta Institute of Pneumology, 050159 Bucharest, Romania
- Microbiology, Parasitology and Virology Discipline, Department of Fundamental Sciences, Faculty of Midwives and Nursing, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Bogdan Cosmin Tănase
- Department of Thoracic Surgery, Institute of Oncology “Prof. Dr. Al. Trestioreanu” Bucharest, 022328 Bucharest, Romania
| | - Daniela Luminița Zob
- Department of Medical Oncology II, Institute of Oncology “Prof. Dr. Al. Trestioreanu” Bucharest, 022328 Bucharest, Romania
| | - Adelina Silvana Gheorghe
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Medical Oncology I, Institute of Oncology “Prof. Dr. Al. Trestioreanu” Bucharest, 022328 Bucharest, Romania
| | | | - Elena Adriana Dumitrescu
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Dana Lucia Stănculeanu
- Department of Oncology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Medical Oncology I, Institute of Oncology “Prof. Dr. Al. Trestioreanu” Bucharest, 022328 Bucharest, Romania
| | - Loredana Sabina Cornelia Manolescu
- Microbiology, Parasitology and Virology Discipline, Department of Fundamental Sciences, Faculty of Midwives and Nursing, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Virology, Institute of Virology “Stefan S. Nicolau”, 030304 Bucharest, Romania
| | - Oana Popescu
- Marius Nasta Institute of Pneumology, 050159 Bucharest, Romania
| | - Elmira Ibraim
- Marius Nasta Institute of Pneumology, 050159 Bucharest, Romania
| | - Beatrice Mahler
- Marius Nasta Institute of Pneumology, 050159 Bucharest, Romania
- Pneumo-Phthisiology II Discipline, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
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11
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Meca AD, Turcu-Stiolica A, Bogdan M, Subtirelu MS, Cocoș R, Ungureanu BS, Mahler B, Pisoschi CG. Screening performance of C-reactive protein for active pulmonary tuberculosis in HIV-positive patients: A systematic review with a meta-analysis. Front Immunol 2022; 13:891201. [PMID: 36090970 PMCID: PMC9453225 DOI: 10.3389/fimmu.2022.891201] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/03/2022] [Indexed: 12/01/2022] Open
Abstract
Background Tuberculosis (TB) is the leading infectious cause of mortality worldwide. In the last years, resistant strains of the etiological agent, Mycobacterium tuberculosis, have emerged, thus demanding more triage tests to identify active pulmonary TB (PTB) patients and to evaluate their disease severity. Therefore, acute-phase reaction serum tests are required for monitoring TB patients, among WHO symptom screening recommendations. C-reactive protein (CRP) is a non-specific inflammatory biomarker that has been recently proposed for TB screening and can be quantitatively analyzed through cost-effective point-of-care assays. A previous meta-analysis found CRP to be highly sensitive and moderately specific for active PTB with confirmed HIV infection. Methods We performed a meta-analysis update of diagnostic tests, pooling sensitivities, and specificities in order to assess the accuracy of CRP as a potential test for the screening of HIV-associated PTB in outpatients. We searched MEDLINE, Web of Science, and SCOPUS for eligible articles before 19 October 2021. Results We identified 13 eligible studies with HIV-positive patients with PTB. At a CRP threshold of 10 mg/L, CRP pooled sensitivity was 87% (76%–93%) and pooled specificity was 67% (49%–81%), with an area under the curve (AUC) of 0.858. Using a CRP threshold of 8 mg/L, pooled sensitivity was 82% (72%–89%) and pooled specificity was 82% (67%–92%), with an AUC of 0.879. We found that CRP has a high sensitivity in the screening of PTB in HIV-positive outpatients, consistent with findings reported previously. Conclusions Regardless of pooled specificity, better results were found using the CRP threshold of 8 mg/L as a test screening of PTB, meeting the need of further approaching specific TB diagnostic methods and reducing resource consumption.
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Affiliation(s)
- Andreea-Daniela Meca
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Adina Turcu-Stiolica
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, Craiova, Romania
- *Correspondence: Adina Turcu-Stiolica,
| | - Maria Bogdan
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Mihaela-Simona Subtirelu
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Relu Cocoș
- Department of Medical Genetics, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
- Marius Nasta Institute of Pneumology, Bucharest, Romania
| | - Bogdan Silviu Ungureanu
- Research Center of Gastroenterology and Hepatology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Beatrice Mahler
- Marius Nasta Institute of Pneumology, Bucharest, Romania
- Pneumology Department (II), University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
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12
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Cocoş R, Mahler B, Turcu-Stiolica A, Stoichiță A, Ghinet A, Shelby ES, Bohîlțea LC. Risk of Death in Comorbidity Subgroups of Hospitalized COVID-19 Patients Inferred by Routine Laboratory Markers of Systemic Inflammation on Admission: A Retrospective Study. Viruses 2022; 14:v14061201. [PMID: 35746672 PMCID: PMC9228480 DOI: 10.3390/v14061201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 12/21/2022] Open
Abstract
Our study objective was to construct models using 20 routine laboratory parameters on admission to predict disease severity and mortality risk in a group of 254 hospitalized COVID-19 patients. Considering the influence of confounding factors in this single-center study, we also retrospectively assessed the correlations between the risk of death and the routine laboratory parameters within individual comorbidity subgroups. In multivariate regression models and by ROC curve analysis, a model of three routine laboratory parameters (AUC 0.85; 95% CI: 0.79–0.91) and a model of six laboratory factors (AUC 0.86; 95% CI: 0.81–0.91) were able to predict severity and mortality of COVID-19, respectively, compared with any other individual parameter. Hierarchical cluster analysis showed that inflammatory laboratory markers grouped together in three distinct clusters including positive correlations: WBC with NEU, NEU with neutrophil-to-lymphocyte ratio (NLR), NEU with systemic immune-inflammation index (SII), NLR with SII and platelet-to-lymphocyte ratio (PLR) with SII. When analyzing the routine laboratory parameters in the subgroups of comorbidities, the risk of death was associated with a common set of laboratory markers of systemic inflammation. Our results have shown that a panel of several routine laboratory parameters recorded on admission could be helpful for early evaluation of the risk of disease severity and mortality in COVID-19 patients. Inflammatory markers for mortality risk were similar in the subgroups of comorbidities, suggesting the limited effect of confounding factors in predicting COVID-19 mortality at admission.
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Affiliation(s)
- Relu Cocoş
- Institute of Pneumophtisiology “Marius Nasta”, 050159 Bucharest, Romania; (B.M.); (A.S.); (A.G.)
- Department of Medical Genetics, University of Medicine and Pharmacy “Carol Davila”, 020032 Bucharest, Romania;
- Correspondence: (R.C.); (A.T.-S.)
| | - Beatrice Mahler
- Institute of Pneumophtisiology “Marius Nasta”, 050159 Bucharest, Romania; (B.M.); (A.S.); (A.G.)
- Pneumology Department (II), University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
| | - Adina Turcu-Stiolica
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Correspondence: (R.C.); (A.T.-S.)
| | - Alexandru Stoichiță
- Institute of Pneumophtisiology “Marius Nasta”, 050159 Bucharest, Romania; (B.M.); (A.S.); (A.G.)
- Department of Cardiology, University of Medicine and Pharmacy “Carol Davila”, 020021 Bucharest, Romania
| | - Andreea Ghinet
- Institute of Pneumophtisiology “Marius Nasta”, 050159 Bucharest, Romania; (B.M.); (A.S.); (A.G.)
| | - Elena-Silvia Shelby
- Scientific Research Nucleus, Dr. Nicolae Robanescu National Clinical Centre for Children’s Neurorecovery, 041408 Bucharest, Romania;
| | - Laurențiu Camil Bohîlțea
- Department of Medical Genetics, University of Medicine and Pharmacy “Carol Davila”, 020032 Bucharest, Romania;
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13
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Allemand A, Kulzer F, Mahler B, Dujardin C, Houel J. Optical properties of individual CdS/CdSe/CdS nanocrystals: spherical quantum wells as single-photon sources. Nanotechnology 2022; 33:275703. [PMID: 35299164 DOI: 10.1088/1361-6528/ac5ee3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
We have synthesized CdS(1.3 nm)/CdSe(1.7 nm)/CdS(3.4 nm) spherical quantum wells (SQWs) with a diameter of 13 nm and demonstrated the first photon-antibunching from their emission, labelling them as single-photon sources. Antibunching survives even at high excitation intensities, ruling-out strong emission from the bi-exciton. For the largest intensities, antibunching coupled to spectral measurements reveal the signature of a blue-shifted emission, associated to an irreversible photo-aging effect. A statistical analysis over 26 SQWs demonstrates a moderate correlation between the energy of the main and the blue-shifted emission. Intensity-timetraces recorded on 28 single SQWs show weak blinking, with a median time spent in the bright state of 89%. Their emission decay reveals a complex dynamic with either three or four exponential components. We assigned three of them to the neutral and singly-charged excitons and the slowest to defect emission. While SQWs have been initially designed for laser-oriented applications, we demonstrate that they can serve as efficient single-photon sources.
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Affiliation(s)
- A Allemand
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France
| | - F Kulzer
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France
| | - B Mahler
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France
| | - C Dujardin
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France
| | - J Houel
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France
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14
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Munteanu I, Cioran N, van Hest R, Abubakar I, Story A, Chiotan D, de Vries G, Mahler B. Tuberculosis Surveillance in Romania Among Vulnerable Risk Groups Between 2015 and 2017. Ther Clin Risk Manag 2022; 18:439-446. [PMID: 35478731 PMCID: PMC9035834 DOI: 10.2147/tcrm.s347748] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/10/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Ioana Munteanu
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
| | - Nicoleta Cioran
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
- 3 Department – Complementary Sciences, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
- Correspondence: Nicoleta Cioran, Department of Pneumology, Marius Nasta Institute of Pneumology, Soseaua Viilor nr.90, Sector 5, Bucharest, Romania, Tel +40 745 419 994, Fax +40 213 373 801, Email
| | - Rob van Hest
- Department of Tuberculosis Control, Regional Public Health Service Groningen, Groningen, The Netherlands
- Department of Lung Diseases and Tuberculosis, University Medical Centre Groningen (UMCG), Groningen, The Netherlands
| | - Ibrahim Abubakar
- Institute for Global Health, University College London, London, UK
| | - Alistair Story
- Institute of Health Informatics, University College London, London, UK
- Find and Treat, University College Hospitals NHS Foundation Trust, London, UK
| | - Domnica Chiotan
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
| | - Gerard de Vries
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Beatrice Mahler
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
- 4 Department – Cardio-Thoracic Pathology, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
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15
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Mahler B, de Vries G, van Hest R, Gainaru D, Menezes D, Popescu G, Story A, Abubakar I. Use of targeted mobile X-ray screening and computer-aided detection software to identify tuberculosis among high-risk groups in Romania: descriptive results of the E-DETECT TB active case-finding project. BMJ Open 2021; 11:e045289. [PMID: 34429305 PMCID: PMC8386204 DOI: 10.1136/bmjopen-2020-045289] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 08/07/2021] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To implement and assess the mobile X-ray unit (MXU) equipped with digital radiography, computer-aided detection (CAD) software and molecular point of care tests to improve early tuberculosis (TB) diagnosis in vulnerable populations in a TB outreach screening programme in Romania. DESIGN Descriptive study. SETTINGS Prisons in Bucharest and other cities in the southern part of Romania, homeless shelters and services for problem drug users in Bucharest, and Roma populations in Bucharest and Craiova. PARTICIPANTS 5510 individuals attended the MXU service; 5003 persons were radiologically screened, 61% prisoners, 15% prison staff, 11% Roma population, 10% homeless persons and/or problem drug users and 3% other. INTERVENTIONS Radiological digital chest X-ray (CXR) screening of people at risk for TB, followed by CAD and human reading of the CXRs, and further TB diagnostics when the pulmonologist classified the CXR as suggestive for TB. PRIMARY AND SECONDARY OUTCOME MEASURES Ten bacteriologically confirmed TB cases were identified translating into an overall yield of 200 per 100 000 persons screened (95% CIs of 109 to 368 per 100 000). Prevalence rates among homeless persons and/or problem drug users (826/100 000; 95% CI 326 to 2105/100 000) and the Roma population (345/100 000; 95% CI 95 to 1251/100 000) were particularly high. RESULTS The human reader classified 6.4% (n=317) of the CXRs as suspect for TB (of which 32 were highly suggestive for TB); 16.3% of all CXRs had a CAD4TB version 6 score >50. All 10 diagnosed TB patients had a CAD4TB score >50; 9 had a CAD4TB score >60. CONCLUSIONS Given the high TB prevalence rates found among homeless persons and problem drug users and in the Roma population, targeted active case finding has the potential to deliver a major contribution to TB control in Romania.
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Affiliation(s)
- Beatrice Mahler
- Department of Pulmonoloy, Institute for Lung Diseases Marius Nasta, Bucuresti, Romania
| | - Gerard de Vries
- Team The Netherlands & Elimination, KNCV Tuberculosis Foundation, Den Haag, Zuid-Holland, The Netherlands
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Rob van Hest
- Department of Lung Diseases and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
- Department of Tuberculosis Control, Public Health Service, Groningen, The Netherlands
| | - Dan Gainaru
- Department of Pulmonoloy, Institute for Lung Diseases Marius Nasta, Bucuresti, Romania
| | - Dee Menezes
- Public Health Data Science, UCL Institute of Health Informatics, London, UK
| | - Gilda Popescu
- Department of Pulmonoloy, Institute for Lung Diseases Marius Nasta, Bucuresti, Romania
| | - Alistair Story
- Find&Treat, University College London Hospitals NHS Foundation Trust, London, UK
- Institute of Health Informatics, University College of London, London, UK
| | - Ibrahim Abubakar
- Institute for Global Health, University College London, London, UK
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Ştefanescu S, Cocoş R, Turcu-Stiolica A, Mahler B, Meca AD, Giura AMC, Bogdan M, Shelby ES, Zamfirescu G, Pisoschi CG. Evaluation of prognostic significance of hematological profiles after the intensive phase treatment in pulmonary tuberculosis patients from Romania. PLoS One 2021; 16:e0249301. [PMID: 33793598 PMCID: PMC8016233 DOI: 10.1371/journal.pone.0249301] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
We evaluated in this cohort study the predictive ability of 23 peripheral blood parameters and ratios for treatment outcomes after the 2-month intensive phase in patients with PTB. In 63 patients out of 90 that turned culture negative, a significant decrease in white blood cell count, neutrophils, monocyte, hemoglobin, platelet, plateletcrit, erythrocyte sedimentation rate, MLR, NLR, PLR and SII values after anti-TB therapy compared to pretreatment was observed (p <0.001). Logistic regression analysis generated a model of predictors consisting of nine covariates. Spearman’s correlation analysis revealed significant positive correlations between NLR with NEU (r = 0.79, p<0.01), SII with NEU (r = 0.846, p<0.01), PLT with SII (r = 0.831, p<0.01), PLT with PCT (r = 0.71, p<0.01) and MPV with P-LCR (r = 0,897, p<0.01) in 63 patients out of 90 that turned culture negative after 2 months of treatment. ROC curve analysis indicated that all areas under the curve (AUC) revealed no statistically significant results, except lymphocyte for culture conversion. In summary, here we observed a set of hematological parameters that declined significantly as the disease was treated in patients that turned culture negative. Despite some limitations, our findings are useful for further studies aiming to identify hematological profiles that could predict the treatment outcome.
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Affiliation(s)
- Simona Ştefanescu
- Clinical Analysis Laboratory, Clinical Emergency County Hospital Craiova, Craiova, Romania
| | - Relu Cocoş
- Department of Medical Genetics, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
- Institute of Pneumophtisiology “Marius Nasta”, Bucharest, Romania
- * E-mail:
| | - Adina Turcu-Stiolica
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Beatrice Mahler
- Institute of Pneumophtisiology “Marius Nasta”, Bucharest, Romania
- Pneumology Department (II), University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
| | - Andreea-Daniela Meca
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Ana Maria Cristina Giura
- Department of Preventive Dentistry, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
| | - Maria Bogdan
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Elena-Silvia Shelby
- Scientific Research Nucleus, Dr. Nicolae Robanescu National Clinical Centre for Children’s Neurorecovery, Bucharest, Romania
| | - Georgeta Zamfirescu
- Clinical Analysis Laboratory, Leamna Pneumophtisiology Hospital, Craiova, Romania
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de Vries G, Gainaru D, Keizer S, Mahler B, Radulescu I, Zamfirescu M, Abubakar I. Human reading versus computer-automated reading of chest radiographs in a tuberculosis screening programme in Romania. Eur Respir J 2021; 58:13993003.04628-2020. [PMID: 33692121 DOI: 10.1183/13993003.04628-2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/24/2021] [Indexed: 11/05/2022]
Affiliation(s)
- Gerard de Vries
- KNCV Tuberculosis Foundation, The Hague, The Netherlands .,National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Dan Gainaru
- Marius Nasta Institute of Pneumology, Bucharest, Romania
| | | | | | | | | | - Ibrahim Abubakar
- Institute for Global Health, University College London, London, UK
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Munteanu I, Mahler B, Sion D, Cioran N. TB "cross-border" - a new challenge in tuberculosis management. Tuberculosis (Edinb) 2020. [DOI: 10.1183/13993003.congress-2020.1447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Furtunescu F, Serban A, Mahler B, Munteanu I. Policy framework for building integrated care for TB patients in Romania: setting up the scene. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Problem
Romania put many efforts for TB control, but despite a constant decreasing trend since almost two decades, TB remained a public health concern, due to the notification rate (highest in EU), the number of resistant cases and the mortality. A national strategy for TB control has been issues for 2015-2020, but its implementation was fragmentary.
Description of the Problem
Benefiting for a series of programs financed by the Global Fund to Fight AIDS, Tuberculosis and Malaria, Romania performed a detailed analysis of the national context, on four pillars (governance and accountability, service delivery, organizational capacity, resources). Quantitative data collected through routine systems were combined to interviews with key informers and focus groups with medical staff, patients and NGOs active in supporting key vulnerable population.
Results
A national framework for strengthening the implementation of the strategy was set up under a Tailored to Transition Global Fund Grant. This framework put together the policy and the technical levels and the civil society sector. Main interventions aimed to strengthen the governance, to improve the procurement and supply mechanism, to develop the ambulatory patient-centered model of care and to create tools for improving the access of key vulnerable population to basic integrated medical and social services.
Lessons
Translating the good practice models developed by the NGO sector to permanent (governmental) structures was difficult due to more rigorous legislative framework for public systems.
Key messages
Multisectoral approach is essential for building integrated care for TB patients. Integration of services should focus not only to complex medical needs, but also to the social ones.
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Affiliation(s)
- F Furtunescu
- Department of Public Health, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
- Romanian Association of Public Health and Health Management, Bucharest, Romania
- Department of Planning, Monitoring and Risk Communication, National Institute of Public Health, Bucharest, Romania
| | - A Serban
- Department of Medical Assistance and Public Health, Ministry of Health, Bucharest, Romania
| | - B Mahler
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
| | - I Munteanu
- Department of Pneumology, Marius Nasta Institute of Pneumology, Bucharest, Romania
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Zaharie AM, Antoniu S, Chorostowska Wynimko J, Mihaltan FD, Deleanu OC, Mahler B, Davidescu L, Arghir OC, Ulmeanu R. Romanian Pilot Study of Alpha-1 Antitrypsin Detection-Feasibility and Challenges. Rev Chim 2018. [DOI: 10.37358/rc.18.5.6279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Alpha-1 antitrypsin deficiency (AATD) is an underdiagnosed genetic disorder that manifests primarily through pulmonary and hepatic impairment. In Romania, a targeted detection program testing for AATD was implemented between October 2012 and October 2016. A cohort study enrolled all patients with indication for AATD screening (lung or liver disease, adults and children, index and non-index cases). Testing methods were mainly represented by isoelectric focusing, genotyping and/or sequencing. 620 patients (21 children) were tested (median age 50.0�16.4 years, 58.1% men), 91.9% of proved normal. A total of 50 patients were identified to be carrying a modified genotype (26 men). Hardy-Weinberg equilibrium was used for assessing the frequency of the genetic abnormalities: 1/1.08 PiMM, 1/32 PiMS, 1/28 PiMZ, 1/48 M-rare allele heterozygote, 1/3906 PiSS, 1/2770 PiZZ, 1/1000 PiSZ and 1/12346 for a Z-rare allele heterozygote. Severe AATD was present with a 1% frequency. Prevalence of abnormal genotypes estimated for each at risk category was greater in neonate hepatitis (100%), bronchitis (20%) and adult liver cirrhosis (33.3%). In conclusion, a targeted AATD detection program with this formula is feasible in Romania and will be continued with the implementation of a national registry.
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21
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Schroeder MK, Juul KV, Mahler B, Nørgaard JP, Rittig S. Desmopressin use in pediatric nocturnal enuresis patients: is there a sex difference in prescription patterns? Eur J Pediatr 2018; 177:389-394. [PMID: 29260376 DOI: 10.1007/s00431-017-3074-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/08/2017] [Accepted: 12/11/2017] [Indexed: 11/30/2022]
Abstract
UNLABELLED Desmopressin is a long-established treatment for nocturnal enuresis with clear guidelines regarding its usage. A sex difference in renal sensitivity has recently been reported in adults. The objective of this study was to investigate real-life desmopressin prescription in the Danish pediatric population, and prescription patterns which may reflect a sex difference in pediatric usage. Formulation, dose, treatment duration, and safety (hyponatremia) were investigated. 40,596 children received 214,220 desmopressin prescriptions between 2004 and 2011 in the Danish National Prescription Registry. Data were linked to hyponatremia diagnoses from the National Patient Registry. Although the lowest recommended dose of desmopressin oral lyophilisate is 120 μg, around a fifth of children were prescribed 60 μg for long-term use. A greater proportion of girls (22.6%) than boys (19.8%) received this low dose. Treatment duration was longer for boys than girls on oral lyophilisate (mean 489-524 vs. 414-462 days) and tablet (0.1 mg: 204 vs. 161 days). Prescribed daily dose was consistent with time between prescriptions, indicating no significant drug holidays. There were no admissions for hyponatremia during the observation period. CONCLUSION Danish national prescription data on pediatric desmopressin dosage are consistent with a greater sensitivity to desmopressin in girls than boys. Further studies are required. What is Known: • Desmopressin has been used for pediatric nocturnal enuresis for decades • Recent evidence suggests a sex difference in desmopressin sensitivity in adults What is New: • For the first time, desmopressin prescription practices in nocturnal enuresis are documented for an entire country • A higher proportion of girls than boys received a low dose of desmopressin, consistent with the sex difference in sensitivity reported in adults.
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Affiliation(s)
- Marie Krarup Schroeder
- Pediatric Research Laboratory Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark. .,Institute for Clinical Medicine, Aarhus University, Aarhus, Denmark.
| | - K V Juul
- Ferring Pharmaceuticals, Kay Fiskers plads 5, Copenhagen S, Denmark
| | - B Mahler
- Department of Paediatrics, Regional Hospital Randers, Randers, Denmark
| | - J P Nørgaard
- Ferring Pharmaceuticals, Kay Fiskers plads 5, Copenhagen S, Denmark
| | - S Rittig
- Department of Paediatrics, Regional Hospital Randers, Randers, Denmark
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de la Colina MA, Pompilio L, Hauber ME, Reboreda JC, Mahler B. Parasitic egg rejection decisions of chalk-browed mockingbirds Mimus saturninus are independent of clutch composition. Anim Cogn 2018; 21:301-305. [PMID: 29372341 DOI: 10.1007/s10071-018-1161-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 12/15/2017] [Accepted: 12/26/2017] [Indexed: 10/18/2022]
Abstract
Obligate avian brood parasites lay their eggs in nests of other host species, which assume all the costs of parental care for the foreign eggs and chicks. The most common defensive response to parasitism is the rejection of foreign eggs by hosts. Different cognitive mechanisms and decision-making rules may guide both egg recognition and rejection behaviors. Classical optimization models generally assume that decisions are based on the absolute properties of the options (i.e., absolute valuation). Increasing evidence shows instead that hosts' rejection decisions also depend on the context in which options are presented (i.e., context-dependent valuation). Here we study whether the chalk-browed mockingbird's (Mimus saturninus) rejection of parasitic shiny cowbird (Molothrus bonariensis) eggs is a fixed behavior or varies with the context of the clutch. We tested three possible context-dependent mechanisms: (1) range effect, (2) habituation to variation, and (3) sensitization to variation. We found that mockingbird rejection of parasitic eggs does not change according to the characteristics of the other eggs in the nest. Thus, rejection decisions may exclusively depend on the objective characteristics of the eggs, meaning that the threshold of acceptance or rejection of a foreign egg is context-independent in this system.
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Affiliation(s)
- M A de la Colina
- Departamento de Ecología, Genética y Evolución and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - L Pompilio
- Departamento de Ecología, Genética y Evolución and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M E Hauber
- Department of Animal Biology, School of Integrative Biology, University of Illinois, Urbana-Champaign, IL, 61801, USA
| | - J C Reboreda
- Departamento de Ecología, Genética y Evolución and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - B Mahler
- Departamento de Ecología, Genética y Evolución and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
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Cassette E, Pedetti S, Mahler B, Ithurria S, Dubertret B, Scholes GD. Ultrafast exciton dynamics in 2D in-plane hetero-nanostructures: delocalization and charge transfer. Phys Chem Chem Phys 2017; 19:8373-8379. [DOI: 10.1039/c6cp08689f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The ultrafast dynamics in Cd-based 2D in-plane heterostructures is revealed by femtosecond optical spectroscopy.
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Affiliation(s)
- E. Cassette
- Department of Chemistry
- Princeton University
- Princeton
- USA
| | - S. Pedetti
- Laboratoire de Physique et d'Études des Matériaux
- UMR 8213 ESPCI/CNRS/UPMC
- ESPCI
- 75005 Paris
- France
| | - B. Mahler
- Laboratoire de Physique et d'Études des Matériaux
- UMR 8213 ESPCI/CNRS/UPMC
- ESPCI
- 75005 Paris
- France
| | - S. Ithurria
- Laboratoire de Physique et d'Études des Matériaux
- UMR 8213 ESPCI/CNRS/UPMC
- ESPCI
- 75005 Paris
- France
| | - B. Dubertret
- Laboratoire de Physique et d'Études des Matériaux
- UMR 8213 ESPCI/CNRS/UPMC
- ESPCI
- 75005 Paris
- France
| | - G. D. Scholes
- Department of Chemistry
- Princeton University
- Princeton
- USA
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24
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Mahler B, Kamperis K, Ankarberg-Lindgren C, Djurhuus JC, Rittig S. The effect of puberty on diurnal sodium regulation. Am J Physiol Renal Physiol 2015; 309:F873-9. [PMID: 26336163 DOI: 10.1152/ajprenal.00319.2014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 08/26/2015] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to investigate the impact of sex and puberty stage on circadian changes in sodium excretion, sodium-regulating hormones, and hemodynamics. Thirty-nine healthy volunteers (9 prepuberty boys, 10 prepuberty girls, 10 puberty boys, and 10 puberty girls) were included. They all underwent a 24-h circadian in-patient study under standardized conditions regarding activity, diet, and fluid intake. Blood samples were drawn every 4 h, and the urine was collected in fractions. Blood pressure and heart rate were noninvasively monitored. Atrial natriuretic peptide (ANP), angiotensin II, aldosterone, and renin were measured in blood. Children in puberty had lower plasma levels of renin (P<0.05) and angiotensin II (P<0.05) and a 26% reduction in filtered sodium without changes in sodium excretion compared with prepuberty children. A circadian rhythm in sodium excretion, the renin-angiotensin system, ANP, and blood pressure was found with a midnight ANP peak (P<0.001), a nighttime decrease in hemodynamic parameters (P<0.001), an increase in plasma renin (P<0.001) and angiotensin II (P<0.001), and a decrease in sodium excretion (P<0.001) mainly on the basis of increased sodium reabsorption (P<0.001). The timing of the changes did not depend on sex or puberty group. There is a circadian rhythm of sodium excretion and sodium regulation in 7- to 15-yr-old children. This rhythm is similar in boys and girls. As an important new finding, puberty changes the plasma levels of renin and angiotensin II without changing the amount of sodium excreted or the day to night sodium excretion ratio.
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Affiliation(s)
- B Mahler
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark;
| | - K Kamperis
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
| | | | - J C Djurhuus
- The Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - S Rittig
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
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Domínguez M, de la Colina MA, Di Giacomo AG, Reboreda JC, Mahler B. Host switching in cowbird brood parasites: how often does it occur? J Evol Biol 2015; 28:1290-7. [PMID: 25903962 DOI: 10.1111/jeb.12649] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 04/08/2015] [Accepted: 04/20/2015] [Indexed: 11/30/2022]
Abstract
Avian obligate brood parasites lay their eggs in nests of host species, which provide all parental care. Brood parasites may be host specialists, if they use one or a few host species, or host generalists, if they parasitize many hosts. Within the latter, strains of host-specific females might coexist. Although females preferentially parasitize one host, they may occasionally successfully parasitize the nest of another species. These host switching events allow the colonization of new hosts and the expansion of brood parasites into new areas. In this study, we analyse host switching in two parasitic cowbirds, the specialist screaming cowbird (Molothrus rufoaxillaris) and the generalist shiny cowbird (M. bonariensis), and compare the frequency of host switches between these species with different parasitism strategies. Contrary to expected, host switches did not occur more frequently in the generalist than in the specialist brood parasite. We also found that migration between hosts was asymmetrical in most cases and host switches towards one host were more recurrent than backwards, thus differing among hosts within the same species. This might depend on a combination of factors including the rate at which females lay eggs in nests of alternative hosts, fledging success of the chicks in this new host and their subsequent success in parasitizing it.
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Affiliation(s)
- M Domínguez
- Departamento de Ecología, Genética y Evolución, and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M A de la Colina
- Departamento de Ecología, Genética y Evolución, and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - A G Di Giacomo
- Departamento de Conservación, Aves Argentinas/Asociación Ornitológica del Plata, Buenos Aires, Argentina
| | - J C Reboreda
- Departamento de Ecología, Genética y Evolución, and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - B Mahler
- Departamento de Ecología, Genética y Evolución, and IEGEBA-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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Keenan CM, Baker J, Bradley A, Goodman DG, Harada T, Herbert R, Kaufmann W, Kellner R, Mahler B, Meseck E, Nolte T, Rittinghausen S, Vahle J, Yoshizawa K. International Harmonization of Nomenclature and Diagnostic Criteria (INHAND): Progress to Date and Future Plans. Toxicol Pathol 2014; 43:730-2. [PMID: 25530274 DOI: 10.1177/0192623314560031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The International Harmonization of Nomenclature and Diagnostic Criteria for Lesions in Rats and Mice proposal (INHAND) has been operational since 2005. A Global Editorial Steering Committee manages the overall objectives of the project, and the development of harmonized terminology for each organ system is the responsibility of the Organ Working Groups, drawing upon experts from North America, Europe, and Japan. Great progress has been made with 9 systems published to date--respiratory, hepatobiliary, urinary, central/peripheral nervous systems, male reproductive and mammary, zymbals, clitoral, and preputial glands in Toxicologic Pathology and the integument and soft tissue and female reproductive in the Journal of Toxicologic Pathology as supplements and on a Web site--www.goReni.org. INHAND nomenclature guides offer diagnostic criteria and guidelines for recording lesions observed in rodent toxicity and carcinogenicity studies. The guides provide representative photomicrographs of morphologic changes, information regarding pathogenesis, and key references. The purpose of this brief communication is to provide an update on the progress of INHAND.
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Affiliation(s)
- C M Keenan
- C. M. Keenan ToxPath Consulting, Doylestown, Pennsylvania, USA
| | - J Baker
- Charles River Pathology Associates, Frederick, Maryland, USA
| | - A Bradley
- Charles River Laboratories, Tranent, Scotland, UK
| | - D G Goodman
- Independent Consultant, Potomac, Maryland, USA
| | - T Harada
- The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - R Herbert
- NIEHS, Research Triangle Park, North Carolina, USA
| | | | | | - B Mahler
- NIEHS, Research Triangle Park, North Carolina, USA
| | - E Meseck
- Novartis Institute for Biomedical Research, East Hanover, New Jersey, USA
| | - T Nolte
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | | | - J Vahle
- Eli Lilly & Company, Indianapolis, Indiana
| | - K Yoshizawa
- Kansai Medical University, Hirakata, Osaka, Japan
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27
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Marica C, Cristian D, Tanasescu M, Mahler B, Ciolan GA. Tuberculosis Endemia Evolution in Romania's Regions 2008-2012. Chest 2014. [DOI: 10.1378/chest.1825210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
We investigated the influence of sex and puberty stage on circadian urine production and levels of antidiuretic hormone [arginine vasopressin (AVP)] in healthy children. Thirty-nine volunteers (9 prepuberty boys, 10 prepuberty girls, 10 midpuberty boys, and 10 midpuberty girls) were included. All participants underwent a 24-h circadian inpatient study under standardized conditions regarding Na(+) and fluid intake. Blood samples were drawn every 4 h for measurements of plasma AVP, serum 17-β-estradiol, and testosterone, and urine was fractionally collected for measurements of electrolytes, aquaporin (AQP)2, and PGE2. We found a marked nighttime decrease in diuresis (from 1.69 ± 0.08 to 0.86 ± 0.06 ml·kg(-1)·h(-1), P < 0.001) caused by a significant nighttime increase in solute-free water reabsorption (TcH2O; day-to-night ratio: 0.64 ± 0.07, P < 0.001) concurrent with a significant decrease in osmotic excretion (day-to-night ratio: 1.23 ± 0.06, P < 0.001). Plasma AVP expressed a circadian rhythm (P < 0.01) with a nighttime increase and peak levels at midnight (0.49 ± 0.05 pg/ml). The circadian plasma AVP rhythm was not influenced by sex (P = 0.56) or puberty stage (P = 0.73). There was significantly higher nighttime TcH2O in prepuberty children. This concurred with increased nighttime urinary AQP2 excretion in prepuberty children. Urinary PGE2 exhibited a circadian rhythm independent of sex or puberty stage. Levels of serum 17β-estradiol and testosterone were as expected for sex and puberty stage, and no effect on the AVP-AQP2-TcH2O axis was observed. This study found a circadian rhythm of plasma AVP independent of sex and puberty stage, although nighttime TcH2O was higher and AQP2 excretion was more pronounced in prepuberty children, suggesting higher prepuberty renal AVP sensitivity.
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Affiliation(s)
- B Mahler
- Dept. of Pediatrics, Regionshospitalet Randers, Skovlyvej 1, Randers 8930, Denmark.
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Mahler B, Schneider ARR, Di Giacomo AS, Di Giacomo AG, Reboreda JC, Tiedemann R. Microsatellite usefulness is independent of phylogenetic distance in Tyrant flycatchers (Aves: Tyrannidae): a test using two globally threatened species. Genet Mol Res 2013; 12:2966-72. [PMID: 24065652 DOI: 10.4238/2013.august.12.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Tyrant flycatchers (Aves: Tyrannidae) are endemic to the New World, and many species of this group are threatened or near-threatened at the global level. The aim of this study was to test the 18 microsatellite markers that have been published for other Tyrant flycatchers in the Strange-tailed Tyrant (Alectrurus risora) and the Sharp-tailed Tyrant (Culicivora caudacuta), two endemic species of southern South American grasslands that are classified as vulnerable. We also analyzed the usefulness of loci in relation to phylogenetic distance to the source species. Amplification success was high in both species (77 to 83%) and did not differ between the more closely and more distantly related species to the source species. Polymorphism success was also similar for both species, with 9 and 8 loci being polymorphic, respectively. An increased phylogenetic distance thus does not gradually lead to allelic or locus dropouts, implying that in Tyrant flycatchers, the published loci are useful independent of species relatedness.
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Affiliation(s)
- B Mahler
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II Ciudad Universitaria, Buenos Aires, Argentina
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Tessier MD, Mahler B, Nadal B, Heuclin H, Pedetti S, Dubertret B. Spectroscopy of colloidal semiconductor core/shell nanoplatelets with high quantum yield. Nano Lett 2013; 13:3321-8. [PMID: 23731211 DOI: 10.1021/nl401538n] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Free standing two-dimensional materials appear as a novel class of structures. Recently, the first colloidal two-dimensional heterostructures have been synthesized. These core/shell nanoplatelets are the first step toward colloidal quantum wells. Here, we study in detail the spectroscopic properties of this novel generation of colloidal nanoparticles. We show that core/shell CdSe/CdZnS nanoplatelets with 80% quantum yield can be obtained. The emission time trace of single core/shell nanoplatelets exhibits reduced blinking compared to core nanoplatelets with a two level emission time trace. At cryogenic temperatures, these nanoplatelets have a quantum yield close to 100% and a stable emission time trace. A solution of core/shell nanoplatelets has emission spectra with a full width half-maximum close to 20 nm, a value much lower than corresponding spherical or rod-shaped heterostructures. Using single particle spectroscopy, we show that the broadening of the emission spectra upon the shell deposition is not due to dispersity between particles but is related to an intrinsic increased exciton-phonon coupling in the shell. We also demonstrate that optical spectroscopy is a relevant tool to investigate the presence of traps induced by shell deposition. The spectroscopic properties of the core/shell nanoplatelets presented here strongly suggest that this new generation of objects will be an interesting alternative to spherical or rod-shaped nanocrystals.
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Affiliation(s)
- M D Tessier
- Laboratoire de Physique et d'Etude des Matériaux, CNRS, Université Pierre et Marie Curie , ESPCI, 10 rue Vauquelin, 75005, Paris, France
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Javaux C, Mahler B, Dubertret B, Shabaev A, Rodina AV, Efros AL, Yakovlev DR, Liu F, Bayer M, Camps G, Biadala L, Buil S, Quelin X, Hermier JP. Thermal activation of non-radiative Auger recombination in charged colloidal nanocrystals. Nat Nanotechnol 2013; 8:206-12. [PMID: 23396313 DOI: 10.1038/nnano.2012.260] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 12/17/2012] [Indexed: 05/19/2023]
Abstract
Applications of semiconductor nanocrystals such as biomarkers and light-emitting optoelectronic devices require that their fluorescence quantum yield be close to 100%. However, such quantum yields have not been obtained yet, in part, because non-radiative Auger recombination in charged nanocrystals could not be suppressed completely. Here, we synthesize colloidal core/thick-shell CdSe/CdS nanocrystals with 100% quantum yield and completely quenched Auger processes at low temperatures, although the nanocrystals are negatively photocharged. Single particle and ensemble spectroscopy in the temperature range 30-300 K shows that the non-radiative Auger recombination is thermally activated around 200 K. Experimental results are well described by a model suggesting a temperature-dependent delocalization of one of the trion electrons from the CdSe core and enhanced Auger recombination at the abrupt CdS outer surface. These results point to a route for the design of core/shell structures with 100% quantum yield at room temperature.
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Affiliation(s)
- C Javaux
- Laboratoire de Physique et d'Etude des Matériaux, CNRS, ESPCI, 10 rue Vauquelin 75231 Paris, France
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Mahler B, Kamperis K, Schroeder M, Frøkiær J, Djurhuus JC, Rittig S. Sleep deprivation induces excess diuresis and natriuresis in healthy children. Am J Physiol Renal Physiol 2012; 302:F236-43. [DOI: 10.1152/ajprenal.00283.2011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Urine production is reduced at night, allowing undisturbed sleep. This study was undertaken to show the effect of sleep deprivation (SD) on urine production in healthy children. Special focus was on gender and children at an age where enuresis is still prominent. Twenty healthy children (10 girls) underwent two 24-h studies, randomly assigned to either sleep or SD on the first study night. Diet and fluid intake were standardized. Blood samples were drawn every 4 h during daytime and every 2 h at night. Urine was fractionally collected. Blood pressure and heart rate were noninvasively monitored. Blood was analyzed for plasma antidiuretic hormone (AVP), atrial natriuretic peptide (ANP), angiotensin II, aldosterone, and renin. Urine was analyzed for aquaporin-2 and PGE2. Successful SD was achieved in all participants with a minimum of 4 h 50 min, and full-night SD was obtained in 50% of the participants. During SD, both boys and girls produced markedly larger amounts of urine than during normal sleep (477 ± 145 vs. 291 ± 86 ml, P < 0.01). SD increased urinary excretion of sodium (0.17 ± 0.05 vs. 0.10 ± 0.03 mmol·kg−1·h−1) whereas solute-free water reabsorption remained unchanged. SD induced a significant fall in nighttime plasma AVP ( P < 0.01), renin ( P < 0.05), angiotensin II ( P < 0.001), and aldosterone ( P < 0.05) whereas plasma ANP levels remained uninfluenced ( P = 0.807). Nighttime blood pressure and heart rate were significantly higher during SD (mean arterial pressure: 78.5 ± 8.0 vs. 74.7 ± 8.7 mmHg, P < 0.001). SD leads to natriuresis and excess diuresis in healthy children. The underlying mechanism could be a reduced nighttime dip in blood pressure and a decrease in renin-angiotensin-aldosterone system levels during sleep deprivation.
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Affiliation(s)
- B. Mahler
- Institute of Clinical Medicine,
- Department of Pediatrics,
| | | | | | - J. Frøkiær
- Department of Clinical Physiology, and
- Water and Salt Research Center, Aarhus University, Aarhus University Hospital, Skejby, Aarhus N, Denmark
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Ithurria S, Tessier MD, Mahler B, Lobo RPSM, Dubertret B, Efros AL. Colloidal nanoplatelets with two-dimensional electronic structure. Nat Mater 2011; 10:936-41. [PMID: 22019946 DOI: 10.1038/nmat3145] [Citation(s) in RCA: 572] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 09/01/2011] [Indexed: 05/19/2023]
Abstract
The syntheses of strongly anisotropic nanocrystals with one dimension much smaller than the two others, such as nanoplatelets, are still greatly underdeveloped. Here, we demonstrate the formation of atomically flat quasi-two-dimensional colloidal CdSe, CdS and CdTe nanoplatelets with well-defined thicknesses ranging from 4 to 11 monolayers. These nanoplatelets have the electronic properties of two-dimensional quantum wells formed by molecular beam epitaxy, and their thickness-dependent absorption and emission spectra are described very well within an eight-band Pidgeon-Brown model. They present an extremely narrow emission spectrum with full-width at half-maximum less than 40 meV at room temperature. The radiative fluorescent lifetime measured in CdSe nanoplatelets decreases with temperature, reaching 1 ns at 6 K, two orders of magnitude less than for spherical CdSe nanoparticles. This makes the nanoplatelets the fastest colloidal fluorescent emitters and strongly suggests that they show a giant oscillator strength transition.
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Spinicelli P, Buil S, Quélin X, Mahler B, Dubertret B, Hermier JP. Bright and grey states in CdSe-CdS nanocrystals exhibiting strongly reduced blinking. Phys Rev Lett 2009; 102:136801. [PMID: 19392384 DOI: 10.1103/physrevlett.102.136801] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Indexed: 05/22/2023]
Abstract
When compared to standard colloidal nanocrystals, individual CdSe-CdS core-shell nanocrystals with thick shells exhibit strongly reduced blinking. Analyzing the photon statistics and lifetime of the on state, we first demonstrate that bright periods correspond to single photon emission with a fluorescence quantum efficiency of the monoexcitonic state greater than 95%. We also show that low intensity emitting periods are not dark but correspond to a grey state, with a fluorescence quantum efficiency of 19%. From these measurements, we deduce the radiative lifetime (45 ns) and the Auger lifetime (10.5 ns) of the grey state.
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Affiliation(s)
- P Spinicelli
- Laboratoire Kastler Brossel, Ecole normale supérieure, Université Pierre et Marie Curie, CNRS UMR8552, 24 rue Lhomond 75231 Paris Cedex 05, France
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Mahler B, Marica C, Galie N, Ulmeanu R, Galbenu P, Badea S. [Unilateral salpingian and ovarian TB, a rare form of extrapulmonary TB]. Pneumologia 2009; 58:118-120. [PMID: 19637765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
TB salpingitis and ovarian TB is a rare association of extrapulmonary tuberculosis, especially when the lesions are not associated with lung involvement. The correct therapy leads to the sterilization of the tuberculosis foci, although the risk of scars and adhesions is high, causing local functional disorders.
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Affiliation(s)
- Beatrice Mahler
- Institutul de Pneumologie Marius Nasta,Bucureşti, Catedra de Fiziopatologie si Imunologie I, UMF Carol Davila Bucuresti.
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Mahler B. [Tumor markers used in diagnosis and monitoring of primary bronchopulmonary carcinoma]. Pneumologia 2008; 57:175-177. [PMID: 18998332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Pulmonary neoplasm is a serious disease, often detected in its final stages. Tumor markers, although not a diagnosis method for pulmonary neoplasms, are useful in monitoring the response to treatment and the relapses, as follows: neuron specific enolase (NSE) increases in micro-cellular neoplasm, Cyfra 21-1 increases in non-micro-cellular neoplasm, while the increase of carcino-embryonic antigen (CEA) is non-specific, as it is high in both primary and secondary lung cancer
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Affiliation(s)
- Beatrice Mahler
- UMF Bucureşti, Institutul de Pneumologie Marius Nasta Bucureşti.
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Mahler B, Confalonieri VA, Lovette IJ, Reboreda JC. Partial host fidelity in nest selection by the shiny cowbird (Molothrus bonariensis), a highly generalist avian brood parasite. J Evol Biol 2007; 20:1918-23. [PMID: 17714308 DOI: 10.1111/j.1420-9101.2007.01373.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Obligate avian brood parasites can be host specialists or host generalists. In turn, individual females within generalist brood parasites may themselves be host specialists or generalists. The shiny cowbird Molothrus bonariensis is an extreme generalist, but little is known about individual female host fidelity. We examined variation in mitochondrial control region sequences from cowbird chicks found in nests of four common Argentinean hosts. Haplotype frequency distributions differed among cowbird chicks from nests of these hosts, primarily because eggs laid in nests of house wrens Troglodytes aedon differed genetically from those laid in nests of the other three hosts (chalk-browed mockingbird Mimus saturninus, brown-and-yellow marshbird Pseudoleistes virescens, and rufous-collared sparrow Zonotrichia capensis). These differences in a maternally inherited marker indicate the presence of a nonrandom laying behaviour in the females of this otherwise generalist brood parasite, which may be guided by choice for nest type, as house wrens nest in cavities whereas the other three species are open cup nesters.
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Affiliation(s)
- B Mahler
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II Ciudad Universitaria, Buenos Aires, Argentina.
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Brubach JB, Jannin V, Mahler B, Bourgaux C, Lessieur P, Roy P, Ollivon M. Structural and thermal characterization of glyceryl behenate by X-ray diffraction coupled to differential calorimetry and infrared spectroscopy. Int J Pharm 2007; 336:248-56. [PMID: 17207945 DOI: 10.1016/j.ijpharm.2006.11.057] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 11/28/2006] [Indexed: 11/28/2022]
Abstract
Physical and thermal properties of glyceryl behenate (Compritol 888 ATO) used as sustained-release matrix in pharmaceutical applications are studied by coupled time-resolved synchrotron X-ray diffraction and Differential Scanning Calorimetry combined with Infrared Spectroscopy. With these techniques, all polymorphs formed in glyceryl behenate, analyzed as received and after various thermal treatments from quenching to slow crystallization, are characterized. By using different well-controlled mixtures of mono-, di- and tribehenate, we identify each lamellar phase observed in the glyceryl behenate. Finally the influence of the crystallization rate on the formation of preferential conformations was also analyzed in order to bring insights into the polymorphism of glyceryl behenate. By changing the crystallization rate of the sample, it was shown that one can favor the formation of preferential polymorphs in the sample. In particular the crystallization at 10 degrees C/min seems to be well adapted for producing a single lamellar phase with a period of 60.9 A while a crystallization rate of 0.4 degrees C/min produces three different lamellar phases.
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Affiliation(s)
- J B Brubach
- Synchrotron SOLEIL, Saint Aubin, 91192 Gif sur Yvette Cedex, France.
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Mahler B, Banciu M. [Nutritional support in COPD patients' rehabilitation]. Pneumologia 2006; 55:128-9. [PMID: 17144483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Recovery in COPD includes, as a mandatory stage, the patient's nutritional evaluation, followed by the necessary therapeutic indications. Weight loss has negative effects on the skeletal muscle mass, therefore a kinetic program, without being supported by the appropriate therapy, has a much lower effect. Recent studies show a beneficial effect generated by a high intake of vitamin C, vitamin E, omega-3 fat acid and nutritional supplements. The hormonal therapy is given a controversial place, but it requires extensive studies.
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Brubach JB, Ollivon M, Jannin V, Mahler B, Bourgaux C, Lesieur P, Roy P. Structural and Thermal Characterization of Mono- and Diacyl Polyoxyethylene Glycol by Infrared Spectroscopy and X-ray Diffraction Coupled to Differential Calorimetry. J Phys Chem B 2004. [DOI: 10.1021/jp047989m] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. B. Brubach
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - M. Ollivon
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - V. Jannin
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - B. Mahler
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - C. Bourgaux
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - P. Lesieur
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
| | - P. Roy
- Laboratoire de Physicochimie des Systèmes Polyphasés, UMR 8612, Faculté de Pharmacie, 92296 Chatenay Malabry, France, Gattefossé S. A. S., BP 603 69804, Saint-Priest Cedex, France, and LURE, Université Paris Sud, 91405 Orsay Cedex, France
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Mahler B. The technology and language of telemedicine. Kans Med 1992; 93:354-5. [PMID: 1287285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- B Mahler
- Dept. of Information Technology, KUMC, Kansas City 66160
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Mahler B. Small talk ... about managed care. Disch Plann Update 1990; 10:12-3. [PMID: 10106081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- B Mahler
- Sheltering Arms Rehabilitation Hospital, Richmond, VA
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Mahler B. Discharge planning: continuity of rehabilitation. Disch Plann Update 1988; 8:3-5. [PMID: 10288346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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