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Gómez-Gutiérrez A, Miralles MJ, Corbella I, García S, Navarro S, Llebaria X. [Drinking water quality and safety]. GACETA SANITARIA 2016; 30 Suppl 1:63-68. [PMID: 27837797 DOI: 10.1016/j.gaceta.2016.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/15/2016] [Accepted: 04/18/2016] [Indexed: 12/01/2022]
Abstract
The purpose of drinking water legislation is to guarantee the quality and safety of water intended for human consumption. In the European Union, Directive 98/83/EC updated the essential and binding quality criteria and standards, incorporated into Spanish national legislation by Royal Decree 140/2003. This article reviews the main characteristics of the aforementioned drinking water legislation and its impact on the improvement of water quality against empirical data from Catalonia. Analytical data reported in the Spanish national information system (SINAC) indicate that water quality in Catalonia has improved in recent years (from 88% of analytical reports in 2004 finding drinking water to be suitable for human consumption, compared to 95% in 2014). The improvement is fundamentally attributed to parameters concerning the organoleptic characteristics of water and parameters related to the monitoring of the drinking water treatment process. Two management experiences concerning compliance with quality standards for trihalomethanes and lead in Barcelona's water supply are also discussed. Finally, this paper presents some challenges that, in the opinion of the authors, still need to be incorporated into drinking water legislation. It is necessary to update Annex I of Directive 98/83/EC to integrate current scientific knowledge, as well as to improve consumer access to water quality data. Furthermore, a need to define common criteria for some non-resolved topics, such as products and materials in contact with drinking water and domestic conditioning equipment, has also been identified.
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Navarro S, Driscoll B. Regeneration of the Aging Lung: A Mini-Review. Gerontology 2016; 63:270-280. [DOI: 10.1159/000451081] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 09/27/2016] [Indexed: 11/19/2022] Open
Abstract
Natural lung aging is marked by molecular changes that occur during development, maturation, and late-life decline. At the cellular and whole organ level, degenerative changes that are a hallmark of natural aging (shorter telomeres, increased expression of cellular senescence markers, increased DNA damage, oxidative stress, and apoptosis, accompanied by diminished elasticity) reach pathological levels in aging humans in the form of chronic respiratory disease. Aging strongly correlates with the development and incidence of chronic respiratory diseases, including cancer and idiopathic pulmonary fibrosis, but is most strongly linked with development of chronic obstructive pulmonary disease. Lung failure due to aging can be traced to loss of lung stem cell regenerative capacity within the distinctive stem cell niches found within each compartment of the lung. Current knowledge about the identity and function of these stem cell compartments has been largely drawn from a variety of transgenic and spontaneously mutated mouse models that are characterized by rapid rates of aging or have been used to examine regeneration from injury in the context of natural or accelerated aging. While much work has focused on the failure of epithelial cell populations as a key component of the aging process, additional studies have shown that aging, as a global phenomenon in the lung, also impacts resident endothelial, mesenchymal, and immune cell populations. In this review, we examine aging as a process dependent on specific changes in molecular pathways within multiple lung cell populations.
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Keränen SR, Frasson M, García-Granero E, Navarro S, Campos S, Jordá E, Esclapez P, García-Botello S, Flor B, Espí A, Cervantes A. Stratification of patients with locally advanced rectal cancer (LARC) treated with preoperative chemoradiation (ChR), according to Valentini's nomograms (VN) and the Neoadjuvant Rectal Score (NAR). External validation in a single Institution. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Molina P, Torres JV, Navarro S, Llombart-Bosch A. Uterine Carcinoma With Serous and Choriocarcinomatous Differentiation. Int J Surg Pathol 2016. [DOI: 10.1177/106689699600400104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nongestational, nongonadal, and nonteratoma-related choriocarcinoma is an extremely rare entity. The tumor may be pure or associated with carcinoma. Six cases of primary endometrial carcinomas with the presence of syncytiotrophoblastlike beta-human chorionic gonadotropin (beta-HCG)-positive cells have been reported. We describe a case of endometrial carcinoma in a postmenopausal woman, that was composed almost entirely of syncytiotrophoblastic and cytotrophoblastic elements, except in the areas of lymphatic and myometrial invasion, where the neoplasm expressed a papillary serous carcinoma conformation with numerous psammoma bodies. There was not a clear transition between choriocarcinoma and serous carcinoma components. Immunohistochemically, beta-HCG was strongly positive in trophoblastic cells, whereas papillary areas expressed epithelial membrane antigen. These results suggest a double differentiation from malignant stem cells toward an extraembryonal germinal line and a papillary epithelial line. A poor prognosis is expected for this type of neoplasm with extraembryonic differentiation. In the present case, the histologic subtype of uterine papillary serous carcinoma could be an additional risk factor.
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Garcia O, Hiatt MJ, Lundin A, Lee J, Reddy R, Navarro S, Kikuchi A, Driscoll B. Targeted Type 2 Alveolar Cell Depletion. A Dynamic Functional Model for Lung Injury Repair. Am J Respir Cell Mol Biol 2016. [PMID: 26203800 DOI: 10.1165/rcmb.2014-0246oc] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Type 2 alveolar epithelial cells (AEC2) are regarded as the progenitor population of the alveolus responsible for injury repair and homeostatic maintenance. Depletion of this population is hypothesized to underlie various lung pathologies. Current models of lung injury rely on either uncontrolled, nonspecific destruction of alveolar epithelia or on targeted, nontitratable levels of fixed AEC2 ablation. We hypothesized that discrete levels of AEC2 ablation would trigger stereotypical and informative patterns of repair. To this end, we created a transgenic mouse model in which the surfactant protein-C promoter drives expression of a mutant SR39TK herpes simplex virus-1 thymidine kinase specifically in AEC2. Because of the sensitivity of SR39TK, low doses of ganciclovir can be administered to these animals to induce dose-dependent AEC2 depletion ranging from mild (50%) to lethal (82%) levels. We demonstrate that specific levels of AEC2 depletion cause altered expression patterns of apoptosis and repair proteins in surviving AEC2 as well as distinct changes in distal lung morphology, pulmonary function, collagen deposition, and expression of remodeling proteins in whole lung that persist for up to 60 days. We believe SPCTK mice demonstrate the utility of cell-specific expression of the SR39TK transgene for exerting fine control of target cell depletion. Our data demonstrate, for the first time, that specific levels of type 2 alveolar epithelial cell depletion produce characteristic injury repair outcomes. Most importantly, use of these mice will contribute to a better understanding of the role of AEC2 in the initiation of, and response to, lung injury.
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Shotar E, Law-Ye B, Di Maria F, Baronnet-Chauvet F, Zeidan S, Psimaras D, Bielle F, Pecquet C, Navarro S, Rosso C, Cohen F, Chiras J, Sourour N, Clarençon F. P-020 Non-Ischemic Cerebral Enhancing (NICE) Lesions Secondary to Endovascular Aneurysm Therapy: Nickel Allergy or Foreign Body Reaction? Reports of Two Cases and Review of the Literature. J Neurointerv Surg 2016. [DOI: 10.1136/neurintsurg-2016-012589.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ibarrola-Villava M, Tarazona N, Gambardella V, Mongort C, Navarro S, Garcia-Botello S, Rosello S, Cervantes A, Ribas G. Deregulation of IGF2, FZD10, MAPK3, SMAD4 and SRF expression in colorectal cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61068-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Cardeñosa ML, Fleitas T, Ibarrola-Villava M, Peña-Chilet M, Mongort C, Navarro L, Navarro S, Ribas G, Cervantes A. Methylation profile of candidate genes in gastric cancer with microsatellite instability using high-throughput MALDI-TOF mass array technology: The role of RUNX3 in cancer progression. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61069-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jubierre L, Soriano A, Planells-Ferrer L, París-Coderch L, Tenbaum SP, Romero OA, Moubarak RS, Almazán-Moga A, Molist C, Roma J, Navarro S, Noguera R, Sánchez-Céspedes M, Comella JX, Palmer HG, Sánchez de Toledo J, Gallego S, Segura MF. BRG1/SMARCA4 is essential for neuroblastoma cell viability through modulation of cell death and survival pathways. Oncogene 2016; 35:5179-90. [PMID: 26996667 DOI: 10.1038/onc.2016.50] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 10/29/2015] [Accepted: 02/01/2016] [Indexed: 12/16/2022]
Abstract
Neuroblastoma (NB) is a neoplasm of the sympathetic nervous system, and is the most common solid tumor of infancy. NBs are very heterogeneous, with a clinical course ranging from spontaneous regression to resistance to all current forms of treatment. High-risk patients need intense chemotherapy, and only 30-40% will be cured. Relapsed or metastatic tumors acquire multi-drug resistance, raising the need for alternative treatments. Owing to the diverse mechanisms that are responsible of NB chemoresistance, we aimed to target epigenetic factors that control multiple pathways to bypass therapy resistance. We found that the SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a, member 4 (SMARCA4/BRG1) was consistently upregulated in advanced stages of NB, with high BRG1 levels being indicative of poor outcome. Loss-of-function experiments in vitro and in vivo showed that BRG1 is essential for the proliferation of NB cells. Furthermore, whole-genome transcriptome analysis revealed that BRG1 controls the expression of key elements of oncogenic pathways such as PI3K/AKT and BCL2, which offers a promising new combination therapy for high-risk NB.
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Shepherd C, Navarro S, Wangchuk P, Wilson D, Daly NL, Loukas A. Identifying the immunomodulatory components of helminths. Parasite Immunol 2015; 37:293-303. [PMID: 25854639 DOI: 10.1111/pim.12192] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 03/18/2015] [Indexed: 12/13/2022]
Abstract
Immunomodulatory components of helminths offer great promise as an entirely new class of biologics for the treatment of inflammatory diseases. Here, we discuss the emerging themes in helminth-driven immunomodulation in the context of therapeutic drug discovery. We broadly define the approaches that are currently applied by researchers to identify these helminth molecules, highlighting key areas of potential exploitation that have been mostly neglected thus far, notably small molecules. Finally, we propose that the investigation of immunomodulatory compounds will enable the translation of current and future research efforts into potential treatments for autoimmune and allergic diseases, while at the same time yielding new insights into the molecular interface of host-parasite biology.
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Cardeñosa ML, Fleitas T, Navarro S, Mongort C, Roselló S, Gambardella V, Ribas G, Ibarrola Villava M, Cervantes A. 2393 Role of RUNX3 expression in peritumoral infiammatory infiltrate of gastric carcinoma. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31309-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Salim A, Ley EJ, Berry C, Schulman D, Navarro S, Zheng L, Chan LS. Effect of community educational interventions on rate of organ donation among Hispanic Americans. JAMA Surg 2015; 149:899-902. [PMID: 25103273 DOI: 10.1001/jamasurg.2014.1014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE The need for suitable organs for transplantation is especially pronounced in minority populations such as Hispanic Americans owing to disproportionately high rates of diabetes mellitus and kidney disease. Considerable barriers exist for Hispanic Americans consent to donation, resulting in significantly lower donation rates compared with white individuals. OBJECTIVE To investigate the effect of an aggressive outreach intervention during a 5-year period aimed at improving organ donation rates among Hispanic Americans. DESIGN, SETTING, AND PARTICIPANTS Prospective longitudinal observation study of organ donors treated at a major metropolitan level I trauma center. The center provides most of the medical care to the 4 Southern California neighborhoods with a high percentage of Hispanic Americans that were included in the study. INTERVENTIONS Television and radio media campaigns and culturally sensitive educational programs implemented at high schools, churches, and medical clinics in the target neighborhoods. MAIN OUTCOME AND MEASURE Consent rate for organ donation recorded during the study. RESULTS Outreach interventions started in 2007 and were completed by 2012. Of 268 potential donors, 155 total donors (106 Hispanic Americans) provided consent during this time. A significant increase in consent rate was noted among Hispanic Americans, from 56% in 2005 to 83%in 2011 (P = .004); this increase was not evident in the population that was not Hispanic (67%in 2005 and 79% in 2011; P = .21). CONCLUSIONS AND RELEVANCE Aggressive outreach programs can reduce the disparity between organ supply and demand by improving the consent rate among the target group.
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Zanello M, Peyre M, Mokhtari K, Boch A, Capelle L, Carpentier A, Clemenceau S, Karachi C, Navarro S, Nouet A, Reina V, Sanson M, Cornu P, Kalamarides M. Méningiomes multi-récidivants : établissement de critères de réponse thérapeutiques après analyse des cinétiques de croissance et des types de récidive. Neurochirurgie 2014. [DOI: 10.1016/j.neuchi.2014.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fenoll J, Vela N, Garrido I, Pérez-Lucas G, Navarro S. Abatement of spinosad and indoxacarb residues in pure water by photocatalytic treatment using binary and ternary oxides of Zn and Ti. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:12143-12153. [PMID: 24788933 DOI: 10.1007/s11356-014-2930-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/15/2014] [Indexed: 06/03/2023]
Abstract
The photodegradation of indoxacarb, a broad spectrum foliar insecticide and spinosad, a natural insecticide containing two active ingredients, spinosyn A (major component) and spinosyn D (minor component), was studied in aqueous suspensions of binary (ZnO and TiO2) and ternary (Zn2TiO4 and ZnTiO3) oxides under artificial light (300-460 nm) irradiation. As expected, the influence of the semiconductor materials on the degradation of both was very significant in all cases. Photocatalytic experiments showed that the addition of semiconductors in tandem with Na2S2O8 as electron acceptor strongly improved the removal of indoxacarb and spinosad in water compared with the photolytic tests. The reaction rates significantly increased, especially for the ZnO/Na2S2O8 and TiO2/Na2S2O8 systems. The first-order equation (monophasic model) satisfactorily explained the disappearance process, although it offered no explanation for the small concentrations remaining in the process.
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Navarro S, Moleiro V, Molina-Estevez FJ, Lozano ML, Chinchon R, Almarza E, Quintana-Bustamante O, Mostoslavsky G, Maetzig T, Galla M, Heinz N, Schiedlmeier B, Torres Y, Modlich U, Samper E, Río P, Segovia JC, Raya A, Güenechea G, Izpisua-Belmonte JC, Bueren JA. Generation of iPSCs from genetically corrected Brca2 hypomorphic cells: implications in cell reprogramming and stem cell therapy. Stem Cells 2014; 32:436-46. [PMID: 24420904 DOI: 10.1002/stem.1586] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 09/02/2013] [Accepted: 09/05/2013] [Indexed: 12/24/2022]
Abstract
Fanconi anemia (FA) is a complex genetic disease associated with a defective DNA repair pathway known as the FA pathway. In contrast to many other FA proteins, BRCA2 participates downstream in this pathway and has a critical role in homology-directed recombination (HDR). In our current studies, we have observed an extremely low reprogramming efficiency in cells with a hypomorphic mutation in Brca2 (Brca2(Δ) (27/) (Δ27)), that was associated with increased apoptosis and defective generation of nuclear RAD51 foci during the reprogramming process. Gene complementation facilitated the generation of Brca2(Δ) (27/) (Δ27) induced pluripotent stem cells (iPSCs) with a disease-free FA phenotype. Karyotype analyses and comparative genome hybridization arrays of complemented Brca2(Δ) (27/) (Δ27) iPSCs showed, however, the presence of different genetic alterations in these cells, most of which were not evident in their parental Brca2(Δ) (27/) (Δ27) mouse embryonic fibroblasts. Gene-corrected Brca2(Δ) (27/) (Δ27) iPSCs could be differentiated in vitro toward the hematopoietic lineage, although with a more limited efficacy than WT iPSCs or mouse embryonic stem cells, and did not engraft in irradiated Brca2(Δ) (27/) (Δ27) recipients. Our results are consistent with previous studies proposing that HDR is critical for cell reprogramming and demonstrate that reprogramming defects characteristic of Brca2 mutant cells can be efficiently overcome by gene complementation. Finally, based on analysis of the phenotype, genetic stability, and hematopoietic differentiation potential of gene-corrected Brca2(Δ) (27/) (Δ) (27) iPSCs, achievements and limitations in the application of current reprogramming approaches in hematopoietic stem cell therapy are also discussed.
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Fleitas T, Ibarrola-Villava M, Tarazona N, Cervera R, Mongort C, Navarro S, Rosello S, Ribas G, Pérez-Fidalgo J, Cervantes Ruiperez A. Altered Expression of Cmet and Pik3Ca are Associated with Primary Gastric Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Larrieu D, Choquet S, Hoang-Xuan K, Mokhtari K, Navarro S, Martin-Duverneuil N, Leblond V, Charlotte F, Houillier C. P11.04 * MALT CNS LYMPHOMAS: A MONOCENTRIC EXPERIENCE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Andrés Ramón L, Martos L, Navarro S, España F. C0502: MiRNA Isolation Optimization from Plasma Samples. Thromb Res 2014. [DOI: 10.1016/s0049-3848(14)50247-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Navarro S, Andres Ramon L, Martos L, Bonet E, Dolores Sánchez-Izquierdo M, Ferrando F, Vaya A, Mira Y, Medina P, Bonanad S, España F. C0503: Identification of a Plasma Micrornas Profile Involved in Venous Thrombosis. Thromb Res 2014. [DOI: 10.1016/s0049-3848(14)50271-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tse C, Paris S, Looten V, Boch AL, Navarro S, Delattre JY, Hainque B. Recherche d’une signature de microRNA circulants comme outil d’aide au diagnostic des tumeurs cérébrales primitives de l’adulte. Rev Neurol (Paris) 2014. [DOI: 10.1016/j.neurol.2014.01.206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Salim A, Ley EJ, Berry C, Schulman D, Navarro S, Zheng L, Chan LS. Increasing organ donation in Hispanic Americans: the role of media and other community outreach efforts. JAMA Surg 2014; 149:71-6. [PMID: 24225817 DOI: 10.1001/jamasurg.2013.3967] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE The growing demand for organs continues to outpace supply. This gap is most pronounced in minority populations, who constitute more than 40% of the organ waiting list. Hispanic Americans are particularly less likely to donate compared with other minorities for reasons that remain poorly understood and difficult to change. OBJECTIVE To determine whether outreach interventions that target Hispanic Americans improve organ donation outcomes. DESIGN, SETTING, AND PARTICIPANTS Prospective before-after study of 4 southern California neighborhoods with a high percentage of Hispanic American residents. We conducted cross-sectional telephone surveys before and 2 years after outreach interventions. Respondents 18 years or older were drawn randomly from lists of Hispanic surnames. Awareness, perceptions, and beliefs regarding organ donation and intent to donate were measured and compared before and after interventions. INTERVENTION Television and radio commercials about organ donation and educational programs at 5 high schools and 4 Catholic churches. MAIN OUTCOMES AND MEASURES Number of survey participants who specify intent to donate. RESULTS A total of 402 preintervention and 654 postintervention individuals participated in the surveys. We observed a significant increase in awareness of and knowledge about organ donation and a significant increase in the intent to donate (17.7% vs 12.1%; adjusted odds ratio, 1.55 [95% CI, 1.06-2.26; P = .02]). CONCLUSIONS AND RELEVANCE Focused donor outreach programs sustain awareness and knowledge and can significantly improve intent to donate organs in the Hispanic American population. These programs should continue to be evaluated and implemented to influence donor registration.
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Medina P, Navarro S, Bonet E, Martos L, Estellés A, Bertina R, Vos H, España F. Functional Analysis of Two Haplotypes of the Human Endothelial Protein C Receptor Gene. Arterioscler Thromb Vasc Biol 2014; 34:684-90. [DOI: 10.1161/atvbaha.113.302518] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
To confirm the effect of the endothelial protein receptor gene (
PROCR
) haplotypes H1 and H3 on venous thromboembolism (VTE), to study their effect on endothelial protein C receptor (EPCR) expression in human umbilical vein endothelial cells, and to investigate the functionality of H1 tagging single-nucleotide polymorphisms in an in vitro model.
Approach and Results—
Protein C (PC), activated PC, and soluble EPCR (sEPCR) levels were measured in 702 patients with VTE and 518 healthy individuals. All subjects were genotyped for
PROCR
H1 and H3. Human umbilical vein endothelial cells isolated from 111 umbilical cords were used to study the relation between
PROCR
haplotypes,
PROCR
mRNA, cellular distribution of EPCR, and rate of PC activation. Finally, the functionality of the intragenic
PROCR
H1 single-nucleotide polymorphisms was analyzed using a luciferase-based method. We confirmed that individuals carrying H1 have reduced VTE risk, increased plasma activated PC levels, and reduced plasma sEPCR levels and that individuals with the H3H3 genotype have an increased VTE risk and increased plasma sEPCR levels. In cultured human umbilical vein endothelial cells, H1 is associated with increased membrane-bound EPCR, increased rate of PC activation, and reduced sEPCR in conditioned medium, but does not significantly influence
PROCR
mRNA levels. In contrast, H3 is associated with reduced membrane-bound EPCR and increased sEPCR in human umbilical vein endothelial cell–conditioned medium, higher levels of a truncated mRNA isoform, and a lower rate of PC activation. Finally, we identified the g.2132T>C single-nucleotide polymorphism in intron 1 as an intragenic H1-specific functional single-nucleotide polymorphism.
Conclusions—
These results support a protective role of
PROCR
H1 against VTE and an increased risk of VTE associated with the H3 haplotype.
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Navarro S, Finkelman S. PROTECTING FOOD PACKAGING MATERIALS BY NATURAL NONTOXIC INSECT REPELLENTS. ACTA ACUST UNITED AC 2014. [DOI: 10.17660/actahortic.2014.1015.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kohler J, Rubie H, Castel V, Beiske K, Holmes K, Gambini C, Casale F, Munzer C, Erminio G, Parodi S, Navarro S, Marquez C, Peuchmaur M, Cullinane C, Brock P, Valteau-Couanet D, Garaventa A, Haupt R. Treatment of children over the age of one year with unresectable localised neuroblastoma without MYCN amplification: Results of the SIOPEN study. Eur J Cancer 2013; 49:3671-9. [DOI: 10.1016/j.ejca.2013.07.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 06/06/2013] [Accepted: 07/01/2013] [Indexed: 10/26/2022]
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Mora Lopez L, Serra Pla S, Serra-Aracil X, Ballesteros E, Navarro S. Application of a modified Neff classification to patients with uncomplicated diverticulitis. Colorectal Dis 2013; 15:1442-7. [PMID: 24192258 DOI: 10.1111/codi.12449] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 04/07/2013] [Indexed: 02/06/2023]
Abstract
AIM Severity of acute diverticulitis (AD) has traditionally been assessed using the Hinchey classification; however, this classification is predominantly a surgical one. The Neff classification provides an alternative classification based on CT findings. The aim of this study was to evaluate a modification of the Neff classification to select patients presenting with early-stage AD to receive outpatient management. METHOD All patients with AD, presenting to a single unit, were prospectively studied. All patients underwent emergency abdominal CT and were assigned a Neff stage, including a modification (mNeff) to Neff Stage I. The Neff stages used were: Stage 0, uncomplicated diverticulitis; Diverticula, thickening of the wall, increased density of the pericolic fat; Stage I, locally complicated (our modification included substages Ia (localized pneumoperitoneum in the form of air bubbles) and Ib (local abscess); Stage II, complicated with pelvic abscess; Stage III, complicated with distant abscess; and Stage IV, complicated with other distant complications. Patients who presented with Stage 0 or Stage Ia were selectively managed as outpatients. Patients with comorbidity or the presence of the systemic inflammatory response syndrome (SIRS) were excluded. RESULTS Between February 2010 and January 2013, 205 patients (mean age 59 years; age range 25-90 years) presented with AD. One-hundred and forty-nine met the radiological criteria for potential outpatient treatment. After applying the exclusion criteria, 68 were eventually assigned to an outpatient programme. Sixty-four (94%) successfully completed the outpatient treatment protocol; four patients were readmitted. CONCLUSION Our mNeff classification allowed selected patients with AD to be successfully managed in an outpatient programme.
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