26
|
Aguilar C, Hamandi B, Fegbeutel C, Silveira F, Verschuuren E, Ussetti P, Chin-Hong P, Sole A, Holmes-Liew C, Billaud E, Grossi P, Manuel O, Levine D, Barbers R, Hadjiliadis D, Singer L, Husain S. Clinical Risk Factors for Invasive Aspergillosis in Lung Transplant Recipients: Results of an International Cohort Study. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
27
|
Martín Izquierdo M, Abáigar M, Hernández-Sánchez J, Tamborero D, Díez-Campelo M, Hernández-Sánchez M, Ramos F, Megido M, Aguilar C, Lumbreras E, Redondo-Guijo A, Recio I, Olivier C, Benito R, López-Bigas N, del Cañizo M, Hernández-Rivas J. Mutational and Clonal Dynamics During Progression from MDS to SAML by Whole-Exome and Targeted-Deep Sequencing. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30200-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
28
|
Husson O, Zebrack B, Block R, Embry L, Aguilar C, Hayes-Lattin B, Cole S. Health-related quality of life in adolescent and young adult (AYA) cancer patients: a longitudinal study. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30532-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Flores-Montero J, Sanoja-Flores L, Paiva B, Puig N, García-Sánchez O, Böttcher S, van der Velden VHJ, Pérez-Morán JJ, Vidriales MB, García-Sanz R, Jimenez C, González M, Martínez-López J, Corral-Mateos A, Grigore GE, Fluxá R, Pontes R, Caetano J, Sedek L, Del Cañizo MC, Bladé J, Lahuerta JJ, Aguilar C, Bárez A, García-Mateo A, Labrador J, Leoz P, Aguilera-Sanz C, San-Miguel J, Mateos MV, Durie B, van Dongen JJM, Orfao A. Next Generation Flow for highly sensitive and standardized detection of minimal residual disease in multiple myeloma. Leukemia 2017; 31:2094-2103. [PMID: 28104919 PMCID: PMC5629369 DOI: 10.1038/leu.2017.29] [Citation(s) in RCA: 406] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/24/2016] [Accepted: 01/03/2017] [Indexed: 12/20/2022]
Abstract
Flow cytometry has become a highly valuable method to monitor minimal residual disease (MRD) and evaluate the depth of complete response (CR) in bone marrow (BM) of multiple myeloma (MM) after therapy. However, current flow-MRD has lower sensitivity than molecular methods and lacks standardization. Here we report on a novel next generation flow (NGF) approach for highly sensitive and standardized MRD detection in MM. An optimized 2-tube 8-color antibody panel was constructed in five cycles of design-evaluation-redesign. In addition, a bulk-lysis procedure was established for acquisition of ⩾107 cells/sample, and novel software tools were constructed for automatic plasma cell gating. Multicenter evaluation of 110 follow-up BM from MM patients in very good partial response (VGPR) or CR showed a higher sensitivity for NGF-MRD vs conventional 8-color flow-MRD -MRD-positive rate of 47 vs 34% (P=0.003)-. Thus, 25% of patients classified as MRD-negative by conventional 8-color flow were MRD-positive by NGF, translating into a significantly longer progression-free survival for MRD-negative vs MRD-positive CR patients by NGF (75% progression-free survival not reached vs 7 months; P=0.02). This study establishes EuroFlow-based NGF as a highly sensitive, fully standardized approach for MRD detection in MM which overcomes the major limitations of conventional flow-MRD methods and is ready for implementation in routine diagnostics.
Collapse
|
30
|
Toro-Mujica P, Vera R, Vargas-Bello-Peréz E, Aguilar C, Bas Mir Guevara F. Sistemas de producción de carne bovina en el sur de Chile: Tipología y evolución entre 1997 y 2007. ARCHIVOS DE ZOOTECNIA 2017. [DOI: 10.21071/az.v67i257.3492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Los sistemas de producción de carne bovina en una de las principales zonas ganaderas del Sur de Chile son identificados y caracterizados tomando como base de agrupación las combinaciones de aprovechamientos de especies vegetales. El objetivo del trabajo fue identificar, caracterizar y describir la evolución de sistemas de producción bovinos de carne en la región de la Araucanía y determinar su relación con la utilización de instrumentos de fomento agropecuario tanto públicos como privados. Datos obtenidos desde dos Censos agropecuarios (INE 1997, 2007) se utilizaron como variables de caracterización, permitiendo junto con la diferenciación de grupos, identificar relaciones de dependencia entre grupo, tamaño de hato, aspectos sociales y programas de fomento agropecuario. Los aprovechamientos con mayor presencia correspondieron a praderas naturales, praderas mejoradas, forrajeras perennes, especies forestales, cereales y forrajeras anuales. Tres combinaciones de aprovechamientos fueron seleccionadas por representar al total de explotaciones de la región. Se observaron diferencias significativas en variables cuantitativas y cualitativas entre grupos y años evaluados (P≤0.01).
Collapse
|
31
|
Fonollosa E, Peñalver A, Aguilar C, Borrull F. Bioaccumulation of natural radionuclides in molluscs from the Ebro Delta area. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:208-214. [PMID: 27709430 DOI: 10.1007/s11356-016-7783-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 09/26/2016] [Indexed: 06/06/2023]
Abstract
210Po, 210Pb, 234U, 238U, 232Th and 230Th were analysed in the edible part of four different species of bivalves typically produced and consumed in the Ebro Delta area. The results show that the main contributor to the radioactive content in these species was 210Po, with values ranging between 263.1 ± 26.6 and 813.0 ± 72.9 Bq/kg (d.w.), which are higher than the usual reported activity levels in other geographical areas. This can probably be attributed to the activities of a phosphate industrial plant located upstream on the Ebro River, which may lead to enhanced levels of naturally occurring radioactive isotopes in the aquatic ecosystem. To determine the possible impact on health, the committed effective doses through the consumption of the different species were evaluated and the cumulative total annual effective dose for their consumption was estimated to 187.6 μSv/year, which is in the range of 200-1000 μSv/year given by UNSCEAR.
Collapse
|
32
|
Fonollosa E, Nieto A, Peñalver A, Borrull F, Aguilar C. Determination of artificial beta-emitters in sludge samples. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4705-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Ghamari M, Aguilar C, Soltanpur C, Nazeran H. Rapid Prototyping of a Smart Device-based Wireless Reflectance Photoplethysmograph. PROCEEDINGS OF THE ... SOUTHERN BIOMEDICAL ENGINEERING CONFERENCE. SOUTHERN BIOMEDICAL ENGINEERING CONFERENCE 2016; 2016:175-176. [PMID: 28959119 DOI: 10.1109/sbec.2016.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This paper presents the design, fabrication, and testing of a wireless heart rate (HR) monitoring device based on photoplethysmography (PPG) and smart devices. PPG sensors use infrared (IR) light to obtain vital information to assess cardiac health and other physiologic conditions. The PPG data that are transferred to a computer undergo further processing to derive the Heart Rate Variability (HRV) signal, which is analyzed to generate quantitative markers of the Autonomic Nervous System (ANS). The HRV signal has numerous monitoring and diagnostic applications. To this end, wireless connectivity plays an important role in such biomedical instruments. The photoplethysmograph consists of an optical sensor to detect the changes in the light intensity reflected from the illuminated tissue, a signal conditioning unit to prepare the reflected light for further signal conditioning through amplification and filtering, a low-power microcontroller to control and digitize the analog PPG signal, and a Bluetooth module to transmit the digital data to a Bluetooth-based smart device such as a tablet. An Android app is then used to enable the smart device to acquire and digitally display the received analog PPG signal in real-time on the smart device. This article is concluded with the prototyping of the wireless PPG followed by the verification procedures of the PPG and HRV signals acquired in a laboratory environment.
Collapse
|
34
|
Bastida JM, del Rey M, Lozano ML, Sarasquete ME, Benito R, Fontecha ME, Fisac R, García-Frade LJ, Aguilar C, Martínez MP, Pardal E, Aguilera C, Pérez B, Ramos R, Cardesa MR, Martin-Antorán JM, Silvestre LA, Cebeira MJ, Bermejo N, Riesco S, Mendoza MC, García-Sanz R, González-Díaz M, Hernández-Rivas JM, González-Porras JR. Design and application of a 23-gene panel by next-generation sequencing for inherited coagulation bleeding disorders. Haemophilia 2016; 22:590-7. [DOI: 10.1111/hae.12908] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2015] [Indexed: 12/19/2022]
|
35
|
Orozco M, Gutiérrez CG, López R, Aguilar C, Roque C, Hernández-Cerón J. Pregnancy rate in dairy cows treated with progesterone for six days during estrus synchronization with PGF2α. Anim Reprod Sci 2016; 166:128-32. [PMID: 26833055 DOI: 10.1016/j.anireprosci.2016.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 01/06/2016] [Accepted: 01/08/2016] [Indexed: 11/30/2022]
Abstract
The present study evaluated the effect of progesterone supplementation during a double PGF2α injection synchronization protocol on pregnancy per artificial insemination (P/AI) and on the incidence of twin births. Seven hundred and eighty three dairy cows were synchronized with two injections of PGF2α 14 days apart, starting on day 35 postpartum for their first postpartum insemination. Six days before the second PGF2α injection, cows were treated either with a progesterone-releasing intravaginal device (PRID-Delta) and an intramuscular injection of 500mg of progesterone (n=387) or served as control (n=396) and did not receive progesterone treatment. Cows were inseminated 12h after being detected in estrus. Pregnancy was diagnosed 40-45 days later by transrectal palpation. Progesterone administration improved (P<0.05) the percentage of cows detected in estrus in multiparous [(192/255) 75% vs (161/267) 60%], but not in primiparous cows [93/132 (70%) vs 90/129 (70%)]. Progesterone treatment increased P/AI in multiparous [53/192 (28%) vs 27/161 (17%)] but not in primiparous cows [25/93 (27%) vs 29/90 (32%)]. The incidence of twin births tended to be lower (P=0.09) in cows treated with progesterone [1/74 (1%)] than in the control group [4/53 (7%)]. It is concluded that progesterone administration during estrus synchronization with two PGF2α injections in dairy cows improves estral response and increases P/AI in multiparous, but not in primiparous cows, and tended to decrease the incidence of twin births.
Collapse
|
36
|
Sánchez FD, Yela IJ, Alfonseca E, Campuzano J, Morales E, Aguilar C. Respiratory tract infection caused by Mycobacterium bovis in a black swan (Cygnus atratus). Avian Pathol 2016; 45:126-31. [PMID: 26743683 DOI: 10.1080/03079457.2015.1134765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A 3-year-old male black swan (Cygnus atratus), belonging to a private collection, died suddenly and was subjected to post mortem examination. At necropsy, caseous exudate was observed in the lungs and air sacs; granulomatous lesions characterized by epithelioid macrophages and abundant mycobacteria were observed microscopically. Avian tuberculosis associated with Mycobacterium bovis was confirmed by bacteriologic isolation, biochemical tests and molecular methods. The organism was identified as spoligotype SB0140, which is frequently found in cattle and people in North America. In this case, interspecies transmission could have been the source of infection because the swan cohabited with cattle.
Collapse
|
37
|
Aguilar C, Guerra C, Lascano S, Guzman D, Rojas P, Thirumurugan M, Bejar L, Medina A. Synthesis and characterization of Ti–Ta–Nb–Mn foams. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:420-31. [DOI: 10.1016/j.msec.2015.08.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 08/06/2015] [Accepted: 08/25/2015] [Indexed: 12/01/2022]
|
38
|
Fonollosa E, Peñalver A, Borrull F, Aguilar C. Radon in spring waters in the south of Catalonia. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 151 Pt 1:275-281. [PMID: 26551586 DOI: 10.1016/j.jenvrad.2015.10.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/22/2015] [Accepted: 10/20/2015] [Indexed: 06/05/2023]
Abstract
Spring waters in the south of Catalonia were analysed to determine the (222)Rn activity in order to be able to establish a correlation between the obtained values with the geology of the area of origin of these samples, and also estimate the potential health risks associated with (222)Rn. Most of the analysed samples (90%) show (222)Rn activities lower than 100Bq/L (exposure limit in water recommended by the World Health Organisation and EU directive 2013/51/EURATOM). However, in some cases, the activity values found for this isotope exceeded those levels and this can be attributed to the geology of the area where the spring waters are located, which is predominantly of granitic characteristics. To verify the origin of the radon present in the analysed samples, the obtained activity values were compared with the activities of its parents ((226)Ra, (238)U and (234)U). Finally, we have calculated the annual effective dose from all the radionuclides measured in spring water samples. The results showed that the higher contribution due to spring water ingestion come from (222)Rn and (226)Ra. The resulting contribution to the annual effective dose due to radon ingestion varies between 10.2 and 765.8 μSv/y, and the total annual effective dose due to his parents, (226)Ra, (234)U and (238)U varies between 0.8 and 21.2 μSv/y so the consumption of these waters does not involve any risks to population due to its natural radioactivity content.
Collapse
|
39
|
Fonollosa E, Peñalver A, Aguilar C, Borrull F. Polonium-210 levels in different environmental samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:20032-20040. [PMID: 26298337 DOI: 10.1007/s11356-015-5158-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/04/2015] [Indexed: 06/04/2023]
Abstract
Polonium-210 is analysed in different samples which can be affected by the presence of a dicalcium phosphate plant (DCP). Particularly, it was determined in sludge samples from a drinking water treatment plant located downstream of the phosphate plant. From the obtained results, it was not possible to establish a correlation with the industrial activities carried out in the DCP plant since the measured activities were comparable to the reported in the literature for normal soils. This isotope was also monitored in different biota species (as mussels) taken also downstream of the DCP, and the potential risk of their ingestion by calculating the total effective doses was evaluated. As a result, it is important to highlight that the ingestion of these mussels does not constitute a risk for the population since the found doses were lower than the values published by UNSCEAR.
Collapse
|
40
|
McDonald C, Henricson E, Oskarsson B, Aguilar C, Nicorici A, Joyce N, Reddy D, Wagner A, deBie E, Goude E, Abresch R, Villareal F, Perkins G, Hathout Y, Dugar S, Schreiner G. Epicatechin enhances mitochondrial biogenesis, increases dystrophin and utrophin, increases follistatin while decreasing myostatin, and improves skeletal muscle exercise response in adults with Becker muscular dystrophy (BMD). Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
41
|
Aguilar C. Might apixaban be the optimal oral anticoagulant for haemophiliacs with atrial fibrillation? Haemophilia 2015; 21:e338-e340. [PMID: 25939786 DOI: 10.1111/hae.12709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2015] [Indexed: 06/04/2023]
|
42
|
Sebert M, Aguilar C, Ades L, Chevret S, Lortholary O, Fenaux P. 122 PROGNOSTIC FACTORS OF INFECTIONS AND EFFECT OF PRIMARY ANTI-INFECTIOUS PROPHYLAXIS IN MDS PATIENTS TREATED WITH AZACITIDINE (AZA): A PROSPECTIVE STUDY. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30123-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
De Rueda B, Santa Catalina S, Lucia F, García de la Calzada D, Aguilar C. A new case of bacterial endocarditis in a child with severe Haemophilia A carrying a central venous access device. Haemophilia 2015; 21:e251-e253. [PMID: 25754032 DOI: 10.1111/hae.12658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2015] [Indexed: 11/29/2022]
|
44
|
Fonollosa E, Nieto A, Peñalver A, Aguilar C, Borrull F. Presence of radionuclides in sludge from conventional drinking water treatment plants. A review. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2015; 141:24-31. [PMID: 25500063 DOI: 10.1016/j.jenvrad.2014.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/21/2014] [Accepted: 11/21/2014] [Indexed: 06/04/2023]
Abstract
The analysis of sludge samples generated during water treatment processes show that different radioisotopes of uranium, thorium and radium, among others can accumulate in that kind of samples, even the good removal rates obtained in the aqueous phase (by comparison of influent and effluent water concentrations). Inconsequence, drinking water treatment plants are included in the group of Naturally Occurring Radioactive Material (NORM) industries. The accumulation of radionuclides can be a serious problem especially when this sludge is going to be reused, so more exhaustive information is required to prevent the possible radiological impact of these samples in the environment and also on the people. The main aim of this review is to outline the current situation regarding the different studies reported in the literature up to date focused on the analysis of the radiological content of these sludge samples from drinking water treatment plants. In this sense, special attention is given to the recent approaches for their determination. Another important aim is to discuss about the final disposal of these samples and in this regard, sludge reuse (including for example direct agricultural application or also as building materials) are together with landfilling the main reported strategies.
Collapse
|
45
|
Vargas-Bello-Pérez E, Aguilar C, Toro-Mujica P, Vera R, Ugalde C, Rodríguez S, Briones I. A comparative study of the fatty acid profiles in commercial sheep cheeses. GRASAS Y ACEITES 2014. [DOI: 10.3989/gya.0460141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
46
|
Bernard JB, Aguilar C, Castet E. A new font to reduce crowding. J Vis 2014. [DOI: 10.1167/14.10.784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
47
|
Baciu T, Borrull F, Aguilar C, Calull M. Recent trends in analytical methods and separation techniques for drugs of abuse in hair. Anal Chim Acta 2014; 856:1-26. [PMID: 25542354 DOI: 10.1016/j.aca.2014.06.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 06/06/2014] [Accepted: 06/13/2014] [Indexed: 02/05/2023]
Abstract
Hair analysis of drugs of abuse has been a subject of growing interest from a clinical, social and forensic perspective for years because of the broad time detection window after intake in comparison to urine and blood analysis. Over the last few years, hair analysis has gained increasing attention and recognition for the retrospective investigation of drug abuse in a wide variety of contexts, shown by the large number of applications developed. This review aims to provide an overview of the state of the art and the latest trends used in the literature from 2005 to the present in the analysis of drugs of abuse in hair, with a special focus on separation analytical techniques and their hyphenation with mass spectrometry detection. The most recently introduced sample preparation techniques are also addressed in this paper. The main strengths and weaknesses of all of these approaches are critically discussed by means of relevant applications.
Collapse
|
48
|
Mola M, Avivar J, Nieto A, Peñalver A, Aguilar C, Ferrer L, Cerdà V, Borrull F. Determination of 90Sr and 210Pb in sludge samples using a LOV-MSFIA system and liquid scintillation counting. Appl Radiat Isot 2014; 86:28-35. [DOI: 10.1016/j.apradiso.2013.11.123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 11/04/2013] [Accepted: 11/29/2013] [Indexed: 10/25/2022]
|
49
|
Pereira JB, Cavallin L, Spulber G, Aguilar C, Mecocci P, Vellas B, Tsolaki M, Kłoszewska I, Soininen H, Spenger C, Aarsland D, Lovestone S, Simmons A, Wahlund LO, Westman E. Influence of age, disease onset and ApoE4 on visual medial temporal lobe atrophy cut-offs. J Intern Med 2014; 275:317-30. [PMID: 24118559 DOI: 10.1111/joim.12148] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Visual assessment of medial temporal lobe atrophy (MTA; range 0-4, from no atrophy to increasing atrophy of the choroid fissure, temporal horns and hippocampus) is a sensitive radiological marker of Alzheimer's disease (AD). One of the critical elements for visual MTA assessment is the cut-off score that determines deviation from normality. METHODS In this study, we assessed the sensitivity and specificity of different MTA cut-off scores to classify control subjects, individuals with mild cognitive impairment (MCI) and AD patients from two large independent cohorts, AddNeuroMed and Alzheimer's Disease Neuroimaging Initiative. Of note, we evaluated the effects of clinical, demographic and genetic variables on the classification performance according to the different cut-offs. RESULTS A cut-off of ≥1.5 based on the mean MTA scores of both hemispheres showed higher sensitivity in classifying patients with AD (84.5%) and MCI subjects (75.8%) who converted to dementia compared to an age-dependent cut-off. The age-dependent cut-off showed higher specificity or ability to correctly identify control subjects (83.2%) and those with MCI who remained stable (65.5%). Increasing age, early-onset disease and absence of the ApoE ε4 allele had a stronger influence on classifications using the ≥1.5 cut-off. Above 75 years of age, an alternative cut-off of ≥2.0 should be applied to achieve a classification accuracy for both patients with AD and control subjects that is clinically useful. CONCLUSION Clinical, demographic and genetic variables can influence the classification of MTA cut-off scores, leading to misdiagnosis in some cases. These variables, in addition to the differential sensitivity and specificity of each cut-off, should be carefully considered when performing visual MTA assessment.
Collapse
|
50
|
Cruz M, Tangco E, Habana M, Cordero C, Mantaring J, Banuelos G, Sarmiento T, Olvina M, Aguilar C, Tan-Pusag C. PO-0659: Prevention of mucositis in nasopharyngeal carcinoma using virgin coconut oil and salt and soda mouthwash. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30777-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|