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Gonzalez P, Salazar JR, Salinas TP, Avila M, Colella JP, Dunnum JL, Glass GE, Gonzalez G, Juarez E, Lindblade K, Pile E, Mendoza Y, Pascale JM, Armien AG, Cook JA, Armien B. Two Decades of Wildlife Pathogen Surveillance: Case Study of Choclo orthohantavirus and Its Wild Reservoir Oligoryzomys costaricensis. Viruses 2023; 15:1390. [PMID: 37376689 DOI: 10.3390/v15061390] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/17/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The Costa Rican pygmy rice rat (Oligoryzomys costaricensis) is the primary reservoir of Choclo orthohantavirus (CHOV), the causal agent of hantavirus disease, pulmonary syndrome, and fever in humans in Panama. Since the emergence of CHOV in early 2000, we have systematically sampled and archived rodents from >150 sites across Panama to establish a baseline understanding of the host and virus, producing a permanent archive of holistic specimens that we are now probing in greater detail. We summarize these collections and explore preliminary habitat/virus associations to guide future wildlife surveillance and public health efforts related to CHOV and other zoonotic pathogens. Host sequences of the mitochondrial cytochrome b gene form a single monophyletic clade in Panama, despite wide distribution across Panama. Seropositive samples were concentrated in the central region of western Panama, consistent with the ecology of this agricultural commensal and the higher incidence of CHOV in humans in that region. Hantavirus seroprevalence in the pygmy rice rat was >15% overall, with the highest prevalence in agricultural areas (21%) and the lowest prevalence in shrublands (11%). Host-pathogen distribution, transmission dynamics, genomic evolution, and habitat affinities can be derived from the preserved samples, which include frozen tissues, and now provide a foundation for expanded investigations of orthohantaviruses in Panama.
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Affiliation(s)
- Publio Gonzalez
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Jacqueline R Salazar
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Tybbysay P Salinas
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Mario Avila
- Department of Vector Control-Herrera Health Region, Ministry of Health, Panama City 0843-03441, Panama
| | - Jocelyn P Colella
- Biodiversity Institute & Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 66045, USA
| | - Jonathan L Dunnum
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Gregory E Glass
- Department of Geography & Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA
| | - Gloria Gonzalez
- Department of Genomics and Proteomics, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Enos Juarez
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Kimberly Lindblade
- Malaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA
| | - Edwin Pile
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Yaxelis Mendoza
- Department of Genomics and Proteomics, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
- Sistema Nacional de Investigación (SNI), Secretaria Nacional de Ciencia y Tecnología (SENACYT), Panama City 0816-02852, Panama
| | - Juan Miguel Pascale
- Department of Genomics and Proteomics, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
| | - Anibal G Armien
- California Animal Health & Food Safety Laboratory System (CAHFS), School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Joseph A Cook
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Blas Armien
- Department of Research in Emerging and Zoonotic Infectious Diseases, Gorgas Memorial Institute of Health Studies, Panama City 0816-02593, Panama
- Sistema Nacional de Investigación (SNI), Secretaria Nacional de Ciencia y Tecnología (SENACYT), Panama City 0816-02852, Panama
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Scussel A, Marcondes-Braga F, Espinoza C, De Marchi D, Avila M, Duque A, de Paulo A, Mangini S, de Campos I, Seguro L, Gaiotto F, Bacal F. The Role of High-Sensitive Troponin in Identifying Patients with Cardiac Allograft Rejection. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1223] [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: 04/05/2023] Open
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Aronowitz D, Bougioukas L, Newman J, Avila M, Kon Z, Saikus C. Mechanical Circulatory Support and Heart Transplantation for Acute on Chronic Heart Failure in Untreated Hypothyroidism. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.630] [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: 04/05/2023] Open
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Stawiarski K, Stevens G, Kon Z, Saikus C, Avila M. Complete Heart Block as a Presentation of Antibody Medication Rejection Early Post Heart-Lung Transplant. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1231] [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: 04/05/2023] Open
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Ashraf-Uz-Zaman M, Ji G, Tidwell D, Yin L, Thakolwiboon S, Pan J, Junell R, Griffin Z, Shahi S, Barthels D, Sajib MS, Trippier PC, Mikelis CM, Das H, Avila M, Neugebauer V, German NA. Correction to "Evaluation of Urea-Based Inhibitors of the Dopamine Transporter Using the Experimental Autoimmune Encephalomyelitis Model of Multiple Sclerosis". ACS Chem Neurosci 2022; 13:3138. [PMID: 36264675 DOI: 10.1021/acschemneuro.2c00459] [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: 11/30/2022] Open
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Obaldía N, Barahona I, Lasso J, Avila M, Quijada M, Nuñez M, Marti M. Comparison of PvLAP5 and Pvs25 qRT-PCR assays for the detection of Plasmodium vivax gametocytes in field samples preserved at ambient temperature from remote malaria endemic regions of Panama. PLoS Negl Trop Dis 2022; 16:e0010327. [PMID: 35394999 PMCID: PMC9020738 DOI: 10.1371/journal.pntd.0010327] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/20/2022] [Accepted: 03/14/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND As the elimination of malaria in Mesoamerica progresses, detection of Plasmodium vivax using light microscopy (LM) becomes more difficult. Highly sensitive molecular tools have been developed to help determine the hidden reservoir of malaria transmission in low transmission settings. In this study we compare the performance of PvLAP5 and Pvs25 qRT-PCR assays to LM for the detection of Plasmodium vivax gametocytes in field samples preserved at ambient temperature from malaria endemic regions of Panama. METHODS For this purpose, we collected a total of 83 malaria field samples during 2017-2020 preserved in RNAprotect (RNAp) of which 63 (76%) were confirmed P. vivax by LM and selected for further analysis. Additionally, 16 blood samples from local healthy malaria smear negative volunteers, as well as, from 15 malaria naïve lab-bred Aotus monkeys were used as controls. To optimize the assays, we first determined the minimum blood volume sufficient for detection of PvLAP5 and Pv18SrRNA using P. vivax infected Aotus blood that was preserved in RNAp and kept either at ambient temperature for up to 8 days before freezing or was snap-frozen at -80° Celsius at the time of bleeding. We then compared the mean differences in gametocyte detection rates of both qRT-PCR assays to LM and performed a multivariate correlation analysis of study variables. Finally, we determined the sensitivity (Se) and specificity (Sp) of the assays at detecting gametocytes compared to LM. RESULTS Blood volume optimization indicated that a blood volume of at least 60 μL was sufficient for detection of PvLAP5 and Pv18SrRNA and no significant differences were found between RNA storage conditions. Both PvLAP5 and Pvs25 qRT-PCR assays showed a 37-39% increase in gametocyte detection rate compared to LM respectively. Strong positive correlations were found between gametocytemia and parasitemia and both PvLAP5 and Pvs25 gametocyte markers. However, no significant differences were detected in the Se and Sp of the Pvs25 and PvLAP5 qRT-PCR assays, even though data from control samples suggested Pvs25 to be more abundant than PvLAP5. CONCLUSIONS This study shows that the PvLAP5 qRT-PCR assay is as Se and Sp as the gold standard Pvs25 assay and is at least 37% more sensitive than LM at detecting P. vivax gametocytes in field samples preserved in RNAp at ambient temperature from malaria endemic regions of Panama. AUTHOR SUMMARY Plasmodium vivax is one of the five species of malaria (P. falciparum, P. malariae, P. ovale and P. knowlesi) that are transmitted to man by the bite of female anopheles mosquitoes. It causes ~14.3 million cases mainly in Southeast Asia, India, the Western Pacific and the Americas annually. In the Americas, malaria remains a major problem in underdeveloped areas and indigenous communities in the Amazon region and eastern Panama, where it is endemic and difficult to eliminate. As malaria elimination progresses, detection of P. vivax by light microscopy (LM) becomes more difficult. Therefore, highly sensitive molecular tools have been developed that use genetic markers for the parasite to help determine the hidden reservoir of malaria transmission. This study compares the performance of two molecular assays based on the genetic markers of mature gametocytes PvLAP5 and Pvs25 with LM. The study shows that the PvLAP5 qRT-PCR assay is as sensitive and specific as the gold standard Pvs25 assay and is at least 37% more sensitive than LM at detecting P. vivax gametocytes. These data suggest that the PvLAP5 qRT-PCR assay can be a useful tool to help determine the hidden reservoir of transmission in endemic foci approaching elimination.
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Affiliation(s)
- Nicanor Obaldía
- Departamento de Investigaciones en Parasitología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panamá City, Panamá, Republic of Panamá
- Department of Immunology and Infectious Diseases, Harvard T.H. CHAN School of Public Health, Boston, Massachusetts, United States of America
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Itza Barahona
- Departamento de Control de Vectores, Dirección General de Salud Pública, Ministerio de Salud de Panamá, Panamá, Republic of Panamá
| | - José Lasso
- Departamento de Control de Vectores, Dirección General de Salud Pública, Ministerio de Salud de Panamá, Panamá, Republic of Panamá
| | - Mario Avila
- Departamento de Control de Vectores, Dirección General de Salud Pública, Ministerio de Salud de Panamá, Panamá, Republic of Panamá
| | - Mario Quijada
- Departamento de Investigaciones en Parasitología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panamá City, Panamá, Republic of Panamá
| | - Marlon Nuñez
- Departamento de Investigaciones en Parasitología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panamá City, Panamá, Republic of Panamá
| | - Matthias Marti
- Department of Immunology and Infectious Diseases, Harvard T.H. CHAN School of Public Health, Boston, Massachusetts, United States of America
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
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Tielke J, Maas M, Castillo M, Rezwan K, Avila M. Statistical analysis of thermal conductivity experimentally measured in water-based nanofluids. Proc Math Phys Eng Sci 2021. [DOI: 10.1098/rspa.2021.0222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Nanofluids are suspensions of nanoparticles in a base heat-transfer liquid. They have been widely investigated to boost heat transfer since they were proposed in the 1990s. We present a statistical correlation analysis of experimentally measured thermal conductivity of water-based nanofluids available in the literature. The influences of particle concentration, particle size, temperature and surfactants are investigated. For specific particle materials (alumina, titania, copper oxide, copper, silica and silicon carbide), separate analyses are performed. The conductivity increases with the concentration in qualitative agreement with Maxwell’s theory of homogeneous media. The conductivity also increases with the temperature (in addition to the improvement due to the increased conductivity of water). Surprisingly, only silica nanofluids exhibit a statistically significant effect of the particle size, whereby smaller particles lead to faster heat transfer. Overall, the large scatter in the experimental data prevents a compelling, unambiguous assessment of these effects. Taken together, the results of our analysis suggest that more comprehensive experimental characterizations of nanofluids are necessary to estimate their practical potential.
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Affiliation(s)
- J. Tielke
- University of Bremen, Center of Applied Space Technology and Microgravity (ZARM), Am Fallturm, 2, 28359 Bremen, Germany
| | - M. Maas
- University of Bremen, Advanced Ceramics, Am Biologischen Garten, 2, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, 28359 Bremen, Germany
| | - M. Castillo
- University of Bremen, Center of Applied Space Technology and Microgravity (ZARM), Am Fallturm, 2, 28359 Bremen, Germany
| | - K. Rezwan
- University of Bremen, Advanced Ceramics, Am Biologischen Garten, 2, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, 28359 Bremen, Germany
| | - M. Avila
- University of Bremen, Center of Applied Space Technology and Microgravity (ZARM), Am Fallturm, 2, 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, 28359 Bremen, Germany
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Buyon LE, Santamaria AM, Early AM, Quijada M, Barahona I, Lasso J, Avila M, Volkman SK, Marti M, Neafsey DE, Obaldia III N. Population genomics of Plasmodium vivax in Panama to assess the risk of case importation on malaria elimination. PLoS Negl Trop Dis 2020; 14:e0008962. [PMID: 33315861 PMCID: PMC7769613 DOI: 10.1371/journal.pntd.0008962] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 08/25/2020] [Revised: 12/28/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Malaria incidence in Panama has plateaued in recent years in spite of elimination efforts, with almost all cases caused by Plasmodium vivax. Notwithstanding, overall malaria prevalence remains low (fewer than 1 case per 1000 persons). We used selective whole genome amplification to sequence 59 P. vivax samples from Panama. The P. vivax samples were collected from two periods (2007-2009 and 2017-2019) to study the population structure and transmission dynamics of the parasite. Imported cases resulting from increased levels of human migration could threaten malaria elimination prospects, and four of the samples evaluated came from individuals with travel history. We explored patterns of recent common ancestry among the samples and observed that a highly genetically related lineage (termed CL1) was dominant among the samples (47 out of 59 samples with good sequencing coverage), spanning the entire period of the collection (2007-2019) and all regions of the country. We also found a second, smaller clonal lineage (termed CL2) of four parasites collected between 2017 and 2019. To explore the regional context of Panamanian P. vivax we conducted principal components analysis and constructed a neighbor-joining tree using these samples and samples collected worldwide from a previous study. Three of the four samples with travel history clustered with samples collected from their suspected country of origin (consistent with importation), while one appears to have been a result of local transmission. The small number of Panamanian P. vivax samples not belonging to either CL1 or CL2 clustered with samples collected from Colombia, suggesting they represent the genetically similar ancestral P. vivax population in Panama or were recently imported from Colombia. The low diversity we observe in Panama indicates that this parasite population has been previously subject to a severe bottleneck and may be eligible for elimination. Additionally, while we confirmed that P. vivax is imported to Panama from diverse geographic locations, the lack of impact from imported cases on the overall parasite population genomic profile suggests that onward transmission from such cases is limited and that imported cases may not presently pose a major barrier to elimination.
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Affiliation(s)
- Lucas E. Buyon
- Harvard TH Chan School of Public Health, Boston, Massachusetts, United States of America
- The Broad Institute, Cambridge, Massachusetts, United States of America
| | | | - Angela M. Early
- Harvard TH Chan School of Public Health, Boston, Massachusetts, United States of America
- The Broad Institute, Cambridge, Massachusetts, United States of America
| | - Mario Quijada
- Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama
| | | | | | | | - Sarah K. Volkman
- Harvard TH Chan School of Public Health, Boston, Massachusetts, United States of America
- The Broad Institute, Cambridge, Massachusetts, United States of America
- Simmons University, College of Natural, Behavioral and Health Sciences, Boston, Massachusetts, United States of America
| | | | - Daniel E. Neafsey
- Harvard TH Chan School of Public Health, Boston, Massachusetts, United States of America
- The Broad Institute, Cambridge, Massachusetts, United States of America
- * E-mail: (DEN); (NO)
| | - Nicanor Obaldia III
- Harvard TH Chan School of Public Health, Boston, Massachusetts, United States of America
- Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama
- University of Glasgow, Glasgow, United Kingdom
- * E-mail: (DEN); (NO)
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Avila M, Fellman B, Crumley S, Hudgens C, Tetzlaff M, Broaddus R. CD3+ tumor-associated lymphocytes as a novel prognostic biomarker in endometrial carcinoma. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.06.072] [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: 11/24/2022]
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Avila M, Fellman B, Broaddus R. Mismatch repair deficiency predicts worse survival despite adjuvant treatment in stage I endometrial cancer: Opportunities for novel adjuvant therapy. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Avila M, Fellman B, Crumley S, Hudgens C, Tetzlaff M, Broaddus R. A quantification model of lymphocytic tumor infiltration in endometrial cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.319] [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: 10/23/2022]
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Centeno C, Serra Mitja P, Avila M, Carcereny E, Muñoz-Mármol AM, Moran T, Castellà E, Sanz-Santos J, García-Olivè I, Ramirez Serrano JL, Rosell Gratacos A, Andreo García F. Molecular analysis in cytological samples obtained by endobronchial or oesophageal ultrasound guided needle aspiration in non-small cell lung cancer. Pulmonology 2020; 28:28-33. [PMID: 32507497 DOI: 10.1016/j.pulmoe.2020.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 02/04/2020] [Revised: 04/28/2020] [Accepted: 05/03/2020] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Cytological samples obtained by endobronchial ultrasound (EBUS) are capital for diagnosis, staging and molecular profile in non-small cell lung carcinoma (NSCLC). OBJECTIVE To assess the success rate of complete, partial and individual of molecular analysis in samples obtained by EBUS-guided transbronchial needle aspiration (TBNA) and/or by oesophageal ultrasound-guided fine needle aspiration with an echobronchoscope (EUS-B-FNA) in patients with NSCLC. METHODS Prospective study including 90 patients with non-squamous NSCLC, or non-smoking squamous. Cytological samples were classified into two groups. Group 1: PEN membrane slide and/or cell blocks for the determination of mutations of EGFR, KRAS, ERBB2 and BRAF. Group 2: silane coated slides or cell blocks for rearrangements of ALK, ROS1 and MET amplification. RESULTS The success rate was 78.6% for 4 molecular alterations (EGFR, KRAS, ALK and ROS1), and 44% for 7 determinations. The individual success rate for EGFR was 97%, KRAS 96.3%, ALK 85%, ROS1 82.3%, ERBB2 71.4%, BRAF 67.7% and MET 81.1%. There were no significant differences (p=0.489) in the number of molecular analyses (1-3 vs. 4) in group 1, depending on the types of samples (cell block vs. PEN membrane slide vs. cell block and PEN membrane slide). CONCLUSIONS In patients with NSCLC, the cytological material obtained by ultrasound-guided needle aspiration is sufficient for individual and partial molecular analysis in the vast majority of cases. Membrane slides such as cell blocks are valid samples for molecular analysis.
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Affiliation(s)
- C Centeno
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain; Department of Medicine, Universitat Autonoma de Barcelona, Spain.
| | - P Serra Mitja
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain; Department of Medicine, Universitat Autonoma de Barcelona, Spain
| | - M Avila
- Pathology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - E Carcereny
- Oncology Department, Badalona Applied Research Group in Oncology (B-ARGO), Institut Catala d' Oncologia, Barcelona, Spain
| | - A M Muñoz-Mármol
- Pathology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - T Moran
- Oncology Department, Badalona Applied Research Group in Oncology (B-ARGO), Institut Catala d' Oncologia, Barcelona, Spain
| | - E Castellà
- Pathology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - J Sanz-Santos
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - I García-Olivè
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - J L Ramirez Serrano
- Oncology Department, Badalona Applied Research Group in Oncology (B-ARGO), Institut Catala d' Oncologia, Barcelona, Spain
| | - A Rosell Gratacos
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain; Department of Medicine, Universitat Autonoma de Barcelona, Spain; CIBERES, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - F Andreo García
- Bronchoscopy Unit, Pulmonology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain; Department of Medicine, Universitat Autonoma de Barcelona, Spain; CIBERES, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
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Iturriaga V, Bornhardt T, Avila M, Astete N, Cresp N. Quality of sleep, daytime sleepiness and used of stimulating substances in patients with orofacial musculoskeletal pain. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.126] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Avila M, Alvarado M, Axtell A, Goff J, Funston J, Lentz S. Universal immunohistochemistry testing in endometrial cancer tumors maximizes Lynch Syndrome identification among affected individuals. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.03.187] [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: 10/26/2022]
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Salyer C, Lentz S, Dontsi M, Armstrong M, Butt A, Hoodfar E, Alvarado M, Landers E, Avila M, Nguyen N, Powell CB. Comparison of effectiveness of two strategies to identify Lynch Syndrome in women with endometrial cancer. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.03.186] [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: 10/26/2022]
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Salyer C, Lentz S, Dontsi M, Armstrong M, Hoodfar E, Alvarado M, Landers E, Avila M, Nguyen N, Powell B. Lynch syndrome in women with endometrial cancer: Comparison of universal and age-based strategies in a California healthcare system. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.479] [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: 10/26/2022]
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Avila M, Crumley S, Fellman B, Broaddus R. Identification of a subset of microsatellite-stable endometrial carcinoma with high PD-L1 expression and tumor-associated lymphocytes: A potential strategy for immune checkpoint blockade. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.575] [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: 11/17/2022]
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Avila M, Fellman B, Broaddus R. MSI-high due to MLH1 methylation is associated with worse recurrence-free and overall survival in endometrioid-type endometrial cancer: Implications for adjuvant therapy. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.552] [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: 11/25/2022]
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Rodríguez J, Jattin J, Mendoza F, Vásquez J, Garrido MA, Pallejá C, Vitery S, Felberman R, Martinez C, Avila M. Ley caótica exponencial de los sistemas dinámicos cardiacos para evaluación del Holter: 16 horas. An Fac med 2017. [DOI: 10.15381/anales.v78i3.13761] [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: 12/01/2022] Open
Abstract
Introducción. En un estudio previo se realizó una reducción a 16 horas en la evaluación de la ley exponencial de la dinámica cardiaca caótica, mostrando su efectividad en la caracterización de enfermedad y normalidad. Objetivo. Confirmar la aplicabilidad clínica de la ley matemática exponencial para evaluar la dinámica cardiaca caótica a partir de los registros Holter en 16 horas, observando su utilidad diagnóstica al disminuir su tiempo de evaluación. Diseño. Estudio observacional de corte trasversal donde se avaluó los parámetros electrocardiográficos mediante metodologías físico matemáticas inductivas con una confirmación estadística. Metodología. Se tomaron 100 registros Holter con diferentes tipos de patología, y 40 Holter que fueron diagnosticados como normales. Para cada Holter se construyó un atractor caótico, y midiendo sus espacios de ocupación y dimensión fractal se aplicó la evaluación matemática para diferenciar normalidad de enfermedad. Finalmente se realizaron medidas de concordancia diagnostica respecto al estándar de oro. Resultados. La ocupación espacial de todos los atractores estuvieron dentro de los valores esperados; los registros normales presentaron en la rejilla Kp valores entre 205 y 423. Para los registros con enfermedad aguda, estos valores oscilaron entre 21 y 65; y para los registros de enfermedad crónica estos valores estuvieron entre 104 y 195. Los valores de sensibilidad y especificidad fueron de 100% y el coeficiente Kappa fue de 1. Conclusión. El presente estudio muestra la aplicabilidad clínica de esta metodología para la evaluación en 16 horas de registros electrocardiográficos continuos o Holter.
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Serra P, Sanz-Santos J, Castellà E, Cirauqui B, Andreo F, Llatjós M, Avila M, Margelí M, Serrano L, Centeno C, Quiroga V, Torky M, Ruiz-Manzano J. Identification of oestrogen, progesterone receptor and human epidermal growth factor receptor 2 expression in mediastinal metastases of breast cancer obtained by endobronchial ultrasound-guided transbronchial needle aspiration. Cytopathology 2017; 29:35-40. [PMID: 29119620 DOI: 10.1111/cyt.12486] [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] [Accepted: 08/30/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND In breast cancer patients, the expression statuses of oestrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) are crucial in the choice of treatment. Receptor expression in metastatic lesions can differ from the primary tumour. The aim of our study was to analyse the utility of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) to obtain samples allowing the identification of ER, PR and HER2 expression in patients with mediastinal metastases of breast cancer. PATIENTS AND METHODS The clinical files of all patients with a final diagnosis of breast cancer mediastinal metastases diagnosed by EBUS-TBNA in our institution were retrospectively analysed. The ability of EBUS-TBNA to obtain samples that allowed hormone receptor and HER2 expression analysis was calculated. RESULTS Twenty-four patients were included. ER, PR and HER2 assessments could be performed in 22, 20 and 22 patients, respectively. In 20 of the 24 patients it was possible to investigate all three types of receptor expression. In the remaining four cases, where ER, PR or HER2 expression tests could not be performed, it was due to a lack of tissue. In cases with adequate results for EBUS-TBNA and the primary tumour agreement was greater for ER (16/19) and HER2 (12/14) than PR (8/17). Based on receptor status, there was a change in the choice of treatment for five patients. CONCLUSION In patients with breast cancer mediastinal metastases, ER, PR and HER2 expression can be assessed in samples obtained by EBUS-TBNA whenever a sufficient tissue sample is collected.
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Affiliation(s)
- P Serra
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain.,Department of Medicine, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain
| | - J Sanz-Santos
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain.,Department of Pulmonology, Hospital Mútua de Terrassa, Terrassa (Barcelona), Spain
| | - E Castellà
- Department of Pathology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - B Cirauqui
- Catalan Institute of Oncology, Badalona (Barcelona), Spain
| | - F Andreo
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - M Llatjós
- Department of Pathology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - M Avila
- Department of Pathology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - M Margelí
- Catalan Institute of Oncology, Badalona (Barcelona), Spain
| | - L Serrano
- Department of Pathology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - C Centeno
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - V Quiroga
- Catalan Institute of Oncology, Badalona (Barcelona), Spain
| | - M Torky
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
| | - J Ruiz-Manzano
- Department of Pulmonology, Hospital Germans Trias i Pujol, Badalona (Barcelona), Spain
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Avila M, Lentz S, Axtell A. Does Pre-Operative Vaginal Metronidazole Decrease the Risk of Pelvic Infections following Robotic Radical Hysterectomy? Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.08.254] [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: 10/21/2022]
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Affiliation(s)
- F. Ceccherelli
- Istituto di Anestesiologia e Rianimazione, Università di Padova
| | - F. Ambrosio
- Istituto di Anestesiologia e Rianimazione, Università di Padova
| | - M. Avila
- Istituto di Anestesiologia e Rianimazione, Università di Padova
| | - G. Duse
- Istituto di Anestesiologia e Rianimazione, Università di Padova
| | - A. Munari
- Istituto di Anestesiologia e Rianimazione, Università di Padova
| | - G.P. Giron
- Istituto di Anestesiologia e Rianimazione, Università di Padova
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26
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Avila M. O rural na formação e na evolução do Brasil contemporâneo. Desenv Meio Amb 2016; 38. [DOI: 10.5380/dma.v38i0.44171] [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] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Resenha:WANDERLEY, Maria de Nazareth Baudel. Um saber necessário: os estudos rurais no Brasil. Campinas: Editora da UNICAMP, 2012. 151p. ISBN: 978-85-268-0957-4
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27
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Narberhaus B, Avila M, Orriols J, Saura J. Unilateral ptosis as the initial sign of multiple myeloma. Neurología (English Edition) 2016. [DOI: 10.1016/j.nrleng.2014.08.004] [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: 10/21/2022] Open
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Thevenon J, Duplomb L, Phadke S, Eguether T, Saunier A, Avila M, Carmignac V, Bruel AL, St-Onge J, Duffourd Y, Pazour GJ, Franco B, Attie-Bitach T, Masurel-Paulet A, Rivière JB, Cormier-Daire V, Philippe C, Faivre L, Thauvin-Robinet C. Autosomal recessive IFT57 hypomorphic mutation cause ciliary transport defect in unclassified oral-facial-digital syndrome with short stature and brachymesophalangia. Clin Genet 2016; 90:509-517. [PMID: 27060890 DOI: 10.1111/cge.12785] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 01/04/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 11/30/2022]
Abstract
The 13 subtypes of oral-facial-digital syndrome (OFDS) belong to the heterogeneous group of ciliopathies. Disease-causing genes encode for centrosomal proteins, components of the transition zone or proteins implicated in ciliary signaling. A unique consanguineous family presenting with an unclassified OFDS with skeletal dysplasia and brachymesophalangia was explored. Homozygosity mapping and exome sequencing led to the identification of a homozygous mutation in IFT57, which encodes a protein implicated in ciliary transport. The mutation caused splicing anomalies with reduced expression of the wild-type transcript and protein. Both anterograde ciliary transport and sonic hedgehog signaling were significantly decreased in subjects' fibroblasts compared with controls. Sanger sequencing of IFT57 in 13 OFDS subjects and 12 subjects with Ellis-Van Creveld syndrome was negative. This report identifies the implication of IFT57 in human pathology and highlights the first description of a ciliary transport defect in OFDS, extending the genetic heterogeneity of this subgroup of ciliopathies.
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Affiliation(s)
- J Thevenon
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France.,Centre de Référence maladies rares "Anomalies du Développement et syndrome malformatifs" de l'Est et Centre de Génétique, Hôpital d'Enfants, CHU, Dijon, France
| | - L Duplomb
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France
| | - S Phadke
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - T Eguether
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - A Saunier
- Laboratoire de Génétique Médicale, CHU - Hopitaux de Brabois, Vandoeuvre les Nancy cedex, France
| | - M Avila
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France
| | - V Carmignac
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France
| | - A-L Bruel
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France
| | - J St-Onge
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France.,Laboratoire de Génétique Moléculaire, PTB, CHU Dijon, Dijon, France
| | - Y Duffourd
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France
| | - G J Pazour
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - B Franco
- Telethon Institute of Genetics and Medicine, Naples, Italy.,Medical Genetics, Department of Medical Translational Sciences, University of Napoli Federico II, Naples, Italy.,Department of Medical Translational Sciences, Division of Pediatrics, Federico II University of Naples, Naples, Italy
| | - T Attie-Bitach
- Service de Génétique, Hôpital Necker-Enfants Malades, APHP, Institut Imagine, INSERM UMR1163, University Sorbonne-Paris-Cité, Paris, France
| | - A Masurel-Paulet
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Centre de Référence maladies rares "Anomalies du Développement et syndrome malformatifs" de l'Est et Centre de Génétique, Hôpital d'Enfants, CHU, Dijon, France
| | - J-B Rivière
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France.,Laboratoire de Génétique Moléculaire, PTB, CHU Dijon, Dijon, France
| | - V Cormier-Daire
- Service de Génétique, Hôpital Necker-Enfants Malades, APHP, Institut Imagine, INSERM UMR1163, University Sorbonne-Paris-Cité, Paris, France
| | - C Philippe
- Laboratoire de Génétique Médicale, CHU - Hopitaux de Brabois, Vandoeuvre les Nancy cedex, France
| | - L Faivre
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France.,Centre de Référence maladies rares "Anomalies du Développement et syndrome malformatifs" de l'Est et Centre de Génétique, Hôpital d'Enfants, CHU, Dijon, France
| | - C Thauvin-Robinet
- FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France.,Equipe EA4271 GAD, Université de Bourgogne, Dijon, France.,Centre de Référence maladies rares "Anomalies du Développement et syndrome malformatifs" de l'Est et Centre de Génétique, Hôpital d'Enfants, CHU, Dijon, France
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Domènech B, Romero V, Vázquez MI, Avila M, Benavente J, Muñoz M, Macanás J. Chemical and electrochemical characterization of Nafion containing silver nanoparticles in a stripe-like distribution. RSC Adv 2016. [DOI: 10.1039/c5ra22838g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Study of the effect of Ag-NPs stripes in Nafion: evaluation of chemical, electrochemical and mechanical properties.
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Affiliation(s)
- B. Domènech
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus UAB s/n
- Bellaterra 08193
- Spain
| | - V. Romero
- Universidad de Málaga
- Departamento de Física Aplicada I
- Facultad de Ciencias
- Campus de Teatinos
- Málaga 29071
| | - M. I. Vázquez
- Universidad de Málaga
- Departamento de Física Aplicada I
- Facultad de Ciencias
- Campus de Teatinos
- Málaga 29071
| | - M. Avila
- ALBA Synchrotron Light Source
- Barcelona
- Spain
| | - J. Benavente
- Universidad de Málaga
- Departamento de Física Aplicada I
- Facultad de Ciencias
- Campus de Teatinos
- Málaga 29071
| | - M. Muñoz
- Universitat Autònoma de Barcelona
- Departament de Química
- Facultat de Ciències
- Campus UAB s/n
- Bellaterra 08193
| | - J. Macanás
- Universitat Politècnica de Catalunya
- Departament d'Enginyeria Química
- Escola d'Enginyeria de Terrassa
- Terrassa 08222
- Spain
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30
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Avila M, Dyment DA, Sagen JV, St-Onge J, Moog U, Chung BHY, Mo S, Mansour S, Albanese A, Garcia S, Martin DO, Lopez AA, Claudi T, König R, White SM, Sawyer SL, Bernstein JA, Slattery L, Jobling RK, Yoon G, Curry CJ, Merrer ML, Luyer BL, Héron D, Mathieu-Dramard M, Bitoun P, Odent S, Amiel J, Kuentz P, Thevenon J, Laville M, Reznik Y, Fagour C, Nunes ML, Delesalle D, Manouvrier S, Lascols O, Huet F, Binquet C, Faivre L, Rivière JB, Vigouroux C, Njølstad PR, Innes AM, Thauvin-Robinet C. Clinical reappraisal of SHORT syndrome with PIK3R1 mutations: toward recommendation for molecular testing and management. Clin Genet 2015; 89:501-506. [PMID: 26497935 DOI: 10.1111/cge.12688] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [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: 08/03/2015] [Revised: 10/10/2015] [Accepted: 10/16/2015] [Indexed: 12/01/2022]
Abstract
SHORT syndrome has historically been defined by its acronym: short stature (S), hyperextensibility of joints and/or inguinal hernia (H), ocular depression (O), Rieger abnormality (R) and teething delay (T). More recently several research groups have identified PIK3R1 mutations as responsible for SHORT syndrome. Knowledge of the molecular etiology of SHORT syndrome has permitted a reassessment of the clinical phenotype. The detailed phenotypes of 32 individuals with SHORT syndrome and PIK3R1 mutation, including eight newly ascertained individuals, were studied to fully define the syndrome and the indications for PIK3R1 testing. The major features described in the SHORT acronym were not universally seen and only half (52%) had four or more of the classic features. The commonly observed clinical features of SHORT syndrome seen in the cohort included intrauterine growth restriction (IUGR) <10th percentile, postnatal growth restriction, lipoatrophy and the characteristic facial gestalt. Anterior chamber defects and insulin resistance or diabetes were also observed but were not as prevalent. The less specific, or minor features of SHORT syndrome include teething delay, thin wrinkled skin, speech delay, sensorineural deafness, hyperextensibility of joints and inguinal hernia. Given the high risk of diabetes mellitus, regular monitoring of glucose metabolism is warranted. An echocardiogram, ophthalmological and hearing assessments are also recommended.
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Affiliation(s)
- M Avila
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,Service de Pédiatrie 1, Centre Hospitalier Universitaire Dijon, Dijon, France
| | - D A Dyment
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada
| | - J V Sagen
- Hormone Laboratory, Haukeland University Hospital, Bergen, Norway.,KJ Jebsen Center for Diabetes Research, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - J St-Onge
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,CHU Dijon, Laboratoire de Génétique Moléculaire, Dijon, France
| | - U Moog
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - B H Y Chung
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
| | - S Mo
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
| | - S Mansour
- SW Thames Regional Genetics Service, St. George's Hospital Medical School, London, SW17 0RE, UK
| | - A Albanese
- Paediatric Endocrine Unit, St George's Hospital, London, UK
| | - S Garcia
- Institute of Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Madrid, Spain.,Instituto de Salud Carlos III, Unit 753, Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - D O Martin
- Department of Ophthalmology, Hospital Central de la Cruz Roja San Jose y Santa Adela, Madrid, Spain
| | - A A Lopez
- Puerta de Hierro, University Hospital, Madrid, Spain
| | - T Claudi
- Department of Medicine, Bodø, Norway
| | - R König
- Department of Human Genetics, University of Frankfurt, Frankfurt, Germany
| | - S M White
- Victorian Clinical genetics Services, Murdoch Childrens Research institute, Parkville, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - S L Sawyer
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada
| | - J A Bernstein
- Division of Medical Genetics, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - L Slattery
- Division of Medical Genetics, Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - R K Jobling
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - G Yoon
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - C J Curry
- Genetic Medicine/, University of California, San Francisco, CA, USA
| | - M L Merrer
- Département de Génétique, Hôpital Necker Enfants Malades, Paris, France
| | - B L Luyer
- Service de Pédiatrie, CH Le Havre, Le Havre, France
| | - D Héron
- Département de Génétique et Centre de Référence "Déficiences intellectuelles de causes rares", Paris, France
| | | | - P Bitoun
- Service de Pédiatrie, Bondy, France
| | - S Odent
- Service de Génétique clinique, Rennes, France.,UMR CNRS 6290 IGDR, Universitė Rennes, Rennes, France
| | - J Amiel
- Département de Génétique, Hôpital Necker Enfants Malades, Paris, France
| | - P Kuentz
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France
| | - J Thevenon
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'interrégion Est, FHU-TRANSLAD, Dijon, France
| | - M Laville
- Département d'Endocrinologie, Diabétologie et Nutrition, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France.,Institut National de la Santé et de la Recherche Médicale Unité 1060, Centre Européen pour la nutrition et la Santé, Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon, Pierre-Bénite, France
| | - Y Reznik
- Service d'Endocrinologie, Centre Hospitalier Universitaire Côte-de-Nacre, Caen, France
| | - C Fagour
- Département d'Endocrinologie, Hôpital Haut-Lévêque, Centre Hospitalier Universitaire de Bordeaux, Pessac, France
| | - M-L Nunes
- Département d'Endocrinologie, Hôpital Haut-Lévêque, Centre Hospitalier Universitaire de Bordeaux, Pessac, France
| | - D Delesalle
- Service de pédiatrie, CH de Valencienne, Valencienne, France
| | - S Manouvrier
- Centre de Référence CLAD NdF - Service de génétique clinique Guy Fontaine, CHRU de Lille - Hôpital Jeanne de Flandre, Lille, France
| | - O Lascols
- INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,UPMC Univ Paris 06, Paris, France.,ICAN, Institute of Cardiometabolism And Nutrition, Groupe Hospitalier Universitaire La Pitié-Salpêtrière, Paris, France.,AP-HP, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France
| | - F Huet
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,Service de Pédiatrie 1, Centre Hospitalier Universitaire Dijon, Dijon, France
| | - C Binquet
- Centre d'Investigation Clinique-Epidémiologique Clinique/essais cliniques du CHU de Dijon, Dijon, France
| | - L Faivre
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'interrégion Est, FHU-TRANSLAD, Dijon, France
| | - J-B Rivière
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,CHU Dijon, Laboratoire de Génétique Moléculaire, Dijon, France
| | - C Vigouroux
- INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,UPMC Univ Paris 06, Paris, France.,ICAN, Institute of Cardiometabolism And Nutrition, Groupe Hospitalier Universitaire La Pitié-Salpêtrière, Paris, France.,AP-HP, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France
| | - P R Njølstad
- Department of Pediatrics, Haukeland, University Hospital, Bergen, Norway
| | - A M Innes
- Department of Medical Genetics, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute for Child and Maternal Health, University of Calgary, Calgary, Canada
| | - C Thauvin-Robinet
- EA4271 "Génétique des Anomalies du Développement" (GAD), Université de Bourgogne, Dijon, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs de l'interrégion Est, FHU-TRANSLAD, Dijon, France
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La Cognata M, Spitaleri C, Trippella O, Kiss G, Rogachev G, Mukhamedzhanov A, Avila M, Guardo G, Koshchiy E, Kuchera A, Lamia L, Puglia S, Romano S, Santiago D, Spartà R. Measurement of sub threshold resonance contributions to fusion reactions: the case of the 13C( α, n) 16O astrophysical neutron source. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158600023] [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: 11/15/2022] Open
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32
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Ayala LG, Abreu M, Avila M, Bergamini BC, Neto AC, Zin WA, Neto AG, Carvalho AR. 0548. Effects of sedation and muscle paralysis on inflammation during mechanical ventilation. Intensive Care Med Exp 2014. [PMCID: PMC4798140 DOI: 10.1186/2197-425x-2-s1-p32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Velasco F, Avila M, Concha L, Avendaño A, Garcia G. Changements métaboliques induits par la stimulation électrique des fibres prélemniscales dans le traitement de la maladie de Parkinson. Neurochirurgie 2014. [DOI: 10.1016/j.neuchi.2014.10.052] [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: 11/24/2022]
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34
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Burks T, Avila M, Akhtar F, Göthelid M, Lansåker P, Toprak M, Muhammed M, Uheida A. Studies on the adsorption of chromium(VI) onto 3-Mercaptopropionic acid coated superparamagnetic iron oxide nanoparticles. J Colloid Interface Sci 2014; 425:36-43. [DOI: 10.1016/j.jcis.2014.03.025] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 03/02/2014] [Accepted: 03/10/2014] [Indexed: 11/16/2022]
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35
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La Cognata M, Spitaleri C, Trippella O, Kiss G, Rogachev G, Mukhamedzhanov A, Avila M, Guardo G, Koshchiy E, Kuchera A, Lamia L, Puglia S, Romano S, Santiago D, Spartà R. Measurement of the 13C( α, n) 16O reaction at astrophysical energies using the Trojan Horse Method. Focus on the -3 keV sub-threshold resonance. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146607010] [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: 11/14/2022] Open
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36
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Serrano-Villar S, Moreno S, Fuentes-Ferrer M, Sánchez-Marcos C, Avila M, Sainz T, de Villar NGP, Fernández-Cruz A, Estrada V. The CD4:CD8 ratio is associated with markers of age-associated disease in virally suppressed HIV-infected patients with immunological recovery. HIV Med 2013; 15:40-9. [PMID: 24007533 DOI: 10.1111/hiv.12081] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2013] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Inversion of the CD4:CD8 ratio (< 1) has been identified as a hallmark of inmmunosenescence and an independent predictor of mortality in the general population. We aimed to assess the association between the CD4:CD8 ratio and markers of age-associated disease in treated HIV-infected patients with good immunovirological response. METHODS A cross-sectional analysis was conducted in 132 HIV-infected adults on antiretroviral therapy (ART), with plasma HIV RNA < 50 HIV-1 RNA copies/mL for at least 1 year, CD4 count > 350 cells/μL and age < 65 years. We analysed the associations between the CD4:CD8 ratio and subclinical atherosclerosis [assessed using carotid intima-media thickness (IMT)], arterial stiffness [assessed using the augmentation index (AIx)], the estimated glomerular filtration rate (eGFR), muscle wasting and sarcopenia [assessed using appendicular lean mass/height(2) (ALM) measured by dual-energy X-ray absorptiometry (DEXA)]. RESULTS CD4:CD8 ratio inversion was associated with higher IMT, lower eGFR and lower ALM (all values P < 0.05), but not with AIx. In multivariate analyses adjusted for age, sex, hypertriglyceridaemia, tobacco use and cumulative ART exposure, inversion of the CD4:CD8 ratio was independently associated with higher IMT [odds ratio (OR) 2.9; 95% confidence interval (CI) 1.2-7.1], arterial stiffness (OR 4.8; 95% CI 1.0-23.5) and lower eGFR (OR 5.2; 95% CI 1.0-64.4), but not sarcopenia (OR 0.7; 95% CI 0.2-2.7). These associations persisted when models were applied to subjects with nadir CD4 counts > 200 cells/μL and those with CD4 counts > 500 cells/μL. CONCLUSIONS The CD4:CD8 ratio in treated HIV-infected subjects with good immunovirological response is independently associated with markers of age-associated disease. Hence, it might be a clinically useful predictor of non-AIDS-defining conditions.
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Affiliation(s)
- S Serrano-Villar
- Infectious Diseases Department, University Hospital Ramón y Cajal, Madrid, Spain; Health Research Institute Ramón y Cajal (IRYCIS), Madrid, Spain
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Avila M, Hof B. Nature of laminar-turbulence intermittency in shear flows. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 87:063012. [PMID: 23848777 DOI: 10.1103/physreve.87.063012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 04/20/2013] [Indexed: 06/02/2023]
Abstract
In pipe, channel, and boundary layer flows turbulence first occurs intermittently in space and time: at moderate Reynolds numbers domains of disordered turbulent motion are separated by quiescent laminar regions. Based on direct numerical simulations of pipe flow we argue here that the spatial intermittency has its origin in a nearest neighbor interaction between turbulent regions. We further show that in this regime turbulent flows are intrinsically intermittent with a well-defined equilibrium turbulent fraction but without ever assuming a steady pattern. This transition scenario is analogous to that found in simple models such as coupled map lattices. The scaling observed implies that laminar intermissions of the turbulent flow will persist to arbitrarily large Reynolds numbers.
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Affiliation(s)
- M Avila
- Institute of Fluid Mechanics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
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Avila M, Mellibovsky F, Roland N, Hof B. Streamwise-localized solutions at the onset of turbulence in pipe flow. Phys Rev Lett 2013; 110:224502. [PMID: 23767729 DOI: 10.1103/physrevlett.110.224502] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Indexed: 06/02/2023]
Abstract
Although the equations governing fluid flow are well known, there are no analytical expressions that describe the complexity of turbulent motion. A recent proposition is that in analogy to low dimensional chaotic systems, turbulence is organized around unstable solutions of the governing equations which provide the building blocks of the disordered dynamics. We report the discovery of periodic solutions which just like intermittent turbulence are spatially localized and show that turbulent transients arise from one such solution branch.
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Affiliation(s)
- M Avila
- Institute of Fluid Mechanics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
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Avila M. Novel Carotid Reconstruction Technique. J Vasc Surg 2013. [DOI: 10.1016/j.jvs.2013.02.084] [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: 11/24/2022]
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40
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De Guglielmo Z, Avila M, Veitía D, Fernández A, Venegas C, Correnti de Plata M. [HPV detection in the mouth and cervix of patients with histological diagnosis suggestive of genital infection]. An Sist Sanit Navar 2013; 35:445-54. [PMID: 23296225 DOI: 10.23938/assn.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work evaluated HPV infection in the oral cavity (using oroscopy and exfoliative oral cytology) and its relation to genital infection in women with cytological diagnosis suggestive of HPV infection. The sample consisted of 60 patients who underwent oroscopy, cytology and viral determination in mouth and cervix by PCR using generic primers MY09/MY11 and MPCR. HPV DNA was detected in oral and genital mucosa in 48.33% and 73.3% of patients, respectively, yielding a concordance of 44.2% (k=0.44, moderate agreement). The most common viral types were low risk, especially type 6, found in 86.2% of oral samples and 65.9% of cervical specimens, alone or in combination with other types of low (11) or high oncogenic risk (16, 18, 33), with a concordance of 10.45% (k = 0.1, insignificant agreement). However, in relation to type 6, there was a concordance of 75.86% (k=0.7, high agreement). The cytology of the oral cavity had a sensitivity of 3.5% and a specificity of 93.6%. For oroscopy, sensitivity was 27.6% and specificity was 74.2%. The results indicate that HPV infection in the oral cavity of patients with genital infection could be frequent. The low concordance between HPV types suggests that HPV infection in the mouth and cervix has a different biological behavior.
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Affiliation(s)
- Z De Guglielmo
- Instituto de Oncología y Hematología, Ciudad Universitaria Los Chaguaramos, Caracas, Venezuela.
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La Cognata M, Spitaleri C, Trippella O, Kiss GG, Rogachev GV, Mukhamedzhanov AM, Avila M, Guardo GL, Koshchiy E, Kuchera A, Lamia L, Puglia SMR, Romano S, Santiago D, Spartà R. Measurement of the -3 keV resonance in the reaction 13C(α,n)16O of importance in the s-process. Phys Rev Lett 2012; 109:232701. [PMID: 23368189 DOI: 10.1103/physrevlett.109.232701] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 08/10/2012] [Indexed: 06/01/2023]
Abstract
The (13)C(α,n)(16)O reaction is the neutron source for the main component of the s-process, responsible for the production of most nuclei in the mass range 90</~A</~204. It is active inside the helium-burning shell in asymptotic giant branch stars, at temperatures </~10(8) K, corresponding to an energy interval where the (13)C(α,n)(16)O is effective from 140 to 230 keV. In this region, the astrophysical S(E)-factor is dominated by the -3 keV subthreshold resonance due to the 6.356 MeV level in (17)O, giving rise to a steep increase of the S(E)-factor. Notwithstanding that it plays a crucial role in astrophysics, no direct measurements exist inside the s-process energy window. The magnitude of its contribution is still controversial as extrapolations, e.g., through the R matrix and indirect techniques, such as the asymptotic normalization coefficient (ANC), yield inconsistent results. The discrepancy amounts to a factor of 3 or more right at astrophysical energies. Therefore, we have applied the Trojan horse method to the (13)C((6)Li,n(16)O)d quasifree reaction to achieve an experimental estimate of such contribution. For the first time, the ANC for the 6.356 MeV level has been deduced through the Trojan horse method as well as the n-partial width, allowing to attain an unprecedented accuracy in the (13)C(α,n)(16)O study. Though a larger ANC for the 6.356 MeV level is measured, our experimental S(E)-factor agrees with the most recent extrapolation in the literature in the 140-230 keV energy interval, the accuracy being greatly enhanced thanks to this innovative approach.
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Affiliation(s)
- M La Cognata
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud, 95123 Catania, Italy.
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Abstract
Recent numerical studies suggest that in pipe and related shear flows, the region of phase space separating laminar from turbulent motion is organized by a chaotic attractor, called an edge state, which mediates the transition process. We here confirm the existence of the edge state in laboratory experiments. We observe that it governs the dynamics during the decay of turbulence underlining its potential relevance for turbulence control. In addition we unveil two unstable traveling wave solutions underlying the experimental flow fields. This observation corroborates earlier suggestions that unstable solutions organize turbulence and its stability border.
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Affiliation(s)
- A de Lozar
- Max Planck Institute for Dynamics and Self-Organization, 37073 Göttingen, Germany.
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Abstract
Turbulent transport of angular momentum is a necessary process to explain accretion in astrophysical disks. Although the hydrodynamic stability of disklike flows has been tested in experiments, results are contradictory and suggest either laminar or turbulent flow. Direct numerical simulations reported here show that currently investigated laboratory flows are hydrodynamically unstable and become turbulent at low Reynolds numbers. The underlying instabilities stem from the axial boundary conditions, affect the flow globally, and enhance angular-momentum transport.
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Affiliation(s)
- M Avila
- Max Planck Institute for Dynamics and Self-Organization (MPIDS), 37077 Göttingen, Germany.
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Armien B, Pascale JM, Munoz C, Lee SJ, Choi KL, Avila M, Broce C, Armien AG, Gracia F, Hjelle B, Koster F. Incidence rate for hantavirus infections without pulmonary syndrome, Panama. Emerg Infect Dis 2012; 17:1936-9. [PMID: 22000376 PMCID: PMC3310655 DOI: 10.3201/eid1710.101717] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
During 2001–2007, to determine incidence of all hantavirus infections, including those without pulmonary syndrome, in western Panama, we conducted 11 communitywide surveys. Among 1,129 persons, antibody prevalence was 16.5%–60.4%. Repeat surveys of 476 found that patients who seroconverted outnumbered patients with hantavirus pulmonary syndrome by 14 to 1.
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Affiliation(s)
- Blas Armien
- Gorgas Memorial Institute for Health Research, Panama City, Panama
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Abstract
The aim of this study is to show that the optimal order of Markov Model of cursive words can be rigorously stated in order to fit the structural properties of the observed data using Akaike information criterion. The method has been tested on French Postal check amounts up to order 4. An original structural representation of cursive words based on graphemes is used. The conditional probability to have a word model given an observed sequence of graphemes is computed independently of the length of the sequence. The recognition results obtained confirm the optimal order found using Akaike criterion.
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Affiliation(s)
- C. Olivier
- PSI-La3i, U.F.R. des Sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - T. Paquet
- PSI-La3i, U.F.R. des Sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - M. Avila
- PSI-La3i, U.F.R. des Sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Y. Lecourtier
- PSI-La3i, U.F.R. des Sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
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Armien B, Pascale J, Munoz C, Lee SJ, Choi K, Avila M, Broce C, Armien A, Gracia F, Hjelle B, Koster F. Incidence Rate for Hantavirus Infections without Pulmonary Syndrome, Panama. Emerg Infect Dis 2011. [DOI: 10.3201/eid1710.101717_article.htm] [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: 11/19/2022] Open
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Avila M, Gigot N, Aral B, Callier P, Gautier E, Thevenon J, Pasquier L, Lopez E, Gueneau L, Duplomb L, Goldenberg A, Baumann C, Cormier V, Marlin S, Masurel-Paulet A, Huet F, Attié-Bitach T, Faivre L, Thauvin-Robinet C. GLI3 is rarely implicated in OFD syndromes with midline abnormalities. Hum Mutat 2011; 32:1332-3. [PMID: 21796731 DOI: 10.1002/humu.21570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 07/03/2011] [Indexed: 11/10/2022]
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Avila M, Perez G, Valiente M. Extractant and Solvent Selection to Recover Zinc from a Mining Effluent. Solvent Extraction and Ion Exchange 2011. [DOI: 10.1080/07366299.2011.573434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Picon A, Gaya P, Fernández-García E, Rivas-Cañedo A, Avila M, Nuñez M. Proteolysis, lipolysis, volatile compounds, texture, and flavor of Hispánico cheese made using frozen ewe milk curds pressed for different times. J Dairy Sci 2010; 93:2896-905. [PMID: 20630207 DOI: 10.3168/jds.2009-3041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Accepted: 03/21/2010] [Indexed: 11/19/2022]
Abstract
Hispánico cheese is manufactured in Spain from a mixture of cow and ewe milk. Production of ewe milk varies throughout the year, with a peak in spring and a valley in summer and autumn. To overcome this seasonal shortage, curd from spring ewe milk may be frozen and used for cheese manufacture some months later. In the present work, ewe milk curds pressed for 15, 60, or 120 min were held at -24 degrees C for 4 mo, thawed, cut to 1-mm pieces, and mixed with fresh cow milk curd for the manufacture of experimental Hispánico cheeses. Control cheese was made from a mixture of pasteurized cow and ewe milk in the same (80:20) proportion. Cheeses, made in duplicate experiments, were analyzed throughout a 60-d ripening period. No significant differences between cheeses were found for lactic acid bacteria counts, dry matter content, hydrophilic peptides, 47 out of 68 vol.tile compounds, texture, and flavor characteristics. On the other hand, differences of minor practical significance between experimental and control cheeses, unrelated to the use of frozen ewe milk curd or the pressing time of ewe milk curd, were found for pH value, aminopeptidase activity, proteolysis, hydrophobic peptides, free amino acids, free fatty acids, and the remaining 21 vol.tile compounds. It may be concluded that the use of frozen ewe milk curd in the manufacture of Hispánico cheese does not alter its main characteristics.
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Affiliation(s)
- A Picon
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid 28040, Spain
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