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Tápparo DC, Rogovski P, Cadamuro RD, Marques Souza DS, Bonatto C, Frumi Camargo A, Scapini T, Stefanski F, Amaral A, Kunz A, Hernández M, Treichel H, Rodríguez-Lázaro D, Fongaro G. Nutritional, Energy and Sanitary Aspects of Swine Manure and Carcass Co-digestion. Front Bioeng Biotechnol 2020; 8:333. [PMID: 32411682 PMCID: PMC7200981 DOI: 10.3389/fbioe.2020.00333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/25/2020] [Indexed: 01/28/2023] Open
Abstract
Renewable energy can assist the management of the effects of population growth and rapid economic development on the sustainability of animal husbandry. The primary aim of renewable energy is to minimize the use of fossil fuels via the creation of environmentally friendly energy products from depleted fossil fuels. Digesters that treat swine manure are extensively used in treatment systems; and inclusion of swine carcasses can increase the organic loading rate (OLR) thereby improving biogas yield and productivity on farms. However, the characteristics of the components including animal residues, proteins, lipids, remains of undigested feed items, antimicrobial drug residues, pathogenic microorganisms and nutrient contents, are complex and diverse. It is therefore necessary to manage the anaerobic process stability and digestate purification for subsequent use as fertilizer. Efficient methane recovery from residues rich in lipids is difficult because such residues are only slowly biodegradable. Pretreatment can promote solubilization of lipids and accelerate anaerobic digestion, and pretreatments can process the swine carcass before its introduction onto biodigesters. This review presents an overview of the anaerobic digestion of swine manure and carcasses. We analyze the characteristics of these residues, and we identify strategies to enhance biogas yield and process stability. We consider energy potential, co-digestion of swine manure and carcasses, physical, chemical, and biological pretreatment of biomass, sanitary aspects of swine manure and co-digestates and their recycling as fertilizers.
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Gutiérrez-Carrasquilla L, López-Cano C, Sánchez E, Barbé F, Dalmases M, Hernández M, Campos A, Gaeta AM, Carmona P, Hernández C, Simó R, Lecube A. Effect of Glucose Improvement on Nocturnal Sleep Breathing Parameters in Patients with Type 2 Diabetes: The Candy Dreams Study. J Clin Med 2020; 9:jcm9041022. [PMID: 32260419 PMCID: PMC7230160 DOI: 10.3390/jcm9041022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/24/2020] [Accepted: 04/01/2020] [Indexed: 12/16/2022] Open
Abstract
Type 2 diabetes exerts a negative impact on sleep breathing. It is unknown whether a long-term improvement in glycemic control ameliorates this effect. We conducted an interventional study with 35 patients with type 2 diabetes and obstructive sleep apnea (OSA) to explore this. At home, sleep breathing parameters were assessed at baseline and after a 4-month period in which antidiabetic therapy was intensified. Patients who decreased their body mass index ≥2kg/m2 were excluded. Those with an HbA1c reduction ≥0.5% were considered good responders (n = 24). After the follow-up, good responders exhibited an improvement in the apnea–hypopnea index (AHI: 26-1 (95% IC: 8.6–95.0) vs. 20.0 (4.0–62.4) events/hour, p = 0.002) and in time with oxygen saturation below 90% (CT90: 13.3 (0.4–69.0) vs. 8.1 (0.4–71.2) %, p = 0.002). No changes were observed in the group of non–responders (p = 0.722 and p = 0.138, respectively). The percentage of moderate and severe OSA decreased among good responders (p = 0.040). In the wider population, the change in HbA1c correlated positively to decreases in AHI (r = 0.358, p = 0.035) and negatively to increases in the minimum arterial oxygen saturation (r = −0.386, p = 0.039). Stepwise multivariate regression analysis showed that baseline AHI and the absolute change in HbA1c independently predicted decreased AHI (R2 = 0.496). The improvement of glycemic control exerts beneficial effects on sleep breathing parameters in type 2 diabetes, which cannot be attributed merely to weight loss.
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Huntley D, Giménez E, Pascual MJ, Remigia MJ, Amat P, Vázquez L, Hernández M, Hernández-Boluda JC, Gago B, Piñana JL, García M, Martínez A, Mateo E, Gozalbo-Rovira R, Albert E, Solano C, Navarro D. Reconstitution of cytomegalovirus-specific T-cell immunity following unmanipulated haploidentical allogeneic hematopoietic stem cell transplantation with posttransplant cyclophosphamide. Bone Marrow Transplant 2020; 55:1347-1356. [PMID: 32205853 DOI: 10.1038/s41409-020-0865-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/06/2020] [Accepted: 03/06/2020] [Indexed: 12/26/2022]
Abstract
Cytomegalovirus (CMV) DNAemia and CMV disease have been reported as more frequent in patients undergoing haploidentical allogeneic hematopoietic stem cell transplantation (Haplo-HSCT) than in those receiving HLA-matched allografts. This could be due to impaired CMV-specific T-cell reconstitution. Here, we conducted a multicenter observational study to assess CMV pp65 and IE-1-specific T cells kinetics in patients undergoing unmanipulated Haplo-HSCT with posttransplant cyclophosphamide (PT/Cy-haplo) and compared it with patients allografted with HLA-matched donors. Plasma CMV DNA load was monitored by real-time PCR and enumeration of CMV-specific IFN-γ-producing CD8+ and CD4+ T cells was performed by flow cytometry for intracellular cytokine staining at days +30, +60, +90, and +180 after transplantation. CMV DNAemia developed in 62 patients, occurring with comparable frequency in PT/Cy-haplo and MRD/MUD recipients (P = 0.14). There were no significant differences across groups in the number of patients either displaying detectable CMV-specific CD8+ and CD4+ T-cell responses or acquiring CMV-specific T-cell levels conferring protection against subsequent infection. CMV-specific T-cell counts were comparable between groups at most time points examined, irrespective of whether CMV DNAemia occurred or not prior to monitoring. Collectively the data suggest that PT/Cy-haplo recipients may reconstitute CMV-specific T-cell immunity to the same extent as patients undergoing HLA-matched allo-HSCT.
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García N, Hernández M, Gutierrez-Boada M, Valero A, Navarro A, Muñoz-Chimeno M, Fernández-Manzano A, Escobar FM, Martínez I, Bárcena C, González S, Avellón A, Eiros JM, Fongaro G, Domínguez L, Goyache J, Rodríguez-Lázaro D. Occurrence of Hepatitis E Virus in Pigs and Pork Cuts and Organs at the Time of Slaughter, Spain, 2017. Front Microbiol 2020; 10:2990. [PMID: 32047480 PMCID: PMC6997137 DOI: 10.3389/fmicb.2019.02990] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022] Open
Abstract
Zoonotic hepatitis E, mainly caused by hepatitis E virus (HEV) genotype (gt) 3, is a foodborne disease that has emerged in Europe in recent decades. The main animal reservoir for genotype 3 is domestic pigs. Pig liver and liver derivates are considered the major risk products, and studies focused on the presence of HEV in pig muscles are scarce. The objective of the present study was to evaluate the presence of HEV in different organs and tissues of 45 apparently healthy pigs from nine Spanish slaughterhouses (50% national production) that could enter into the food supply chain. Anti-HEV antibodies were evaluated in serum by an ELISA test. Ten samples from each animal were analyzed for the presence of HEV RNA by reverse transcription real-time PCR (RT-qPCR). The overall seroprevalence obtained was 73.3% (33/45). From the 450 samples analyzed, a total of 26 RT-qPCR positive samples were identified in the liver (7/45), feces (6/45), kidney (5/45), heart (4/45), serum (3/45), and diaphragm (1/45). This is the first report on detection of HEV RNA in kidney and heart samples of naturally infected pigs. HEV RNA detection was negative for rib, bacon, lean ham, and loin samples. These findings indicate that pig meat could be considered as a low risk material for foodborne HEV infection.
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Granado-Casas M, Martin M, Martínez-Alonso M, Alcubierre N, Hernández M, Alonso N, Castelblanco E, Mauricio D. The Mediterranean Diet is Associated with an Improved Quality of Life in Adults with Type 1 Diabetes. Nutrients 2020; 12:nu12010131. [PMID: 31906543 PMCID: PMC7020074 DOI: 10.3390/nu12010131] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/30/2019] [Accepted: 12/12/2019] [Indexed: 12/11/2022] Open
Abstract
This study aimed to assess the potential association between dietary patterns (i.e., the Mediterranean Diet (MedDiet) and healthy eating) and patient-reported quality of life (QoL) and treatment satisfaction (TS) in adults with type 1 diabetes (T1D). A food frequency questionnaire, the Audit of Diabetes-Dependent Quality of Life (ADDQoL-19), and the Diabetes Treatment Satisfaction Questionnaire-status version (DTSQ-s) were administered via personal interviews to 258 participants with T1D. Multivariable analysis showed that a moderate or high adherence to the MedDiet was associated with greater diabetes-specific QoL (β = 0.32, 95% CI = 0.03; 0.61; p = 0.029). None of the dietary quality indexes (i.e., the alternate Mediterranean Diet Score (aMED) and the alternate Healthy Eating Index (aHEI)) were associated with the overall TS. However, the aHEI was positively associated with the specific items of TS “convenience” and “flexibility” (β = 0.03, 95% CI = 0.00; 0.06; p = 0.042 and β = 0.04; 95% CI = 0.01; 0.06; p = 0.011, respectively). On the other hand, the aHEI was negatively associated with the dimension “recommend to others” (β = −0.5, 95% CI = −0.99; −0.02; p = 0.042). In conclusion, a moderate and high adherence to the MedDiet was associated with greater QoL. Although neither aMED nor aHEI were associated with the overall TS, some specific items were positively (i.e., “convenience”, “flexibility”) or negatively (“recommend to others”) related to the aHEI. Further research is needed to assess how to improve medical nutrition therapy and its impact on patient-reported outcomes in people with T1D.
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Sánchez E, Sánchez M, Betriu À, Rius F, Torres G, Purroy F, Pamplona R, Ortega M, López-Cano C, Hernández M, Bueno M, Fernández E, Salvador J, Lecube A. Are Obesity Indices Useful for Detecting Subclinical Atheromatosis in a Middle-Aged Population? Obes Facts 2020; 13:29-39. [PMID: 31968341 PMCID: PMC7098313 DOI: 10.1159/000502696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 08/12/2019] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE There is a close relationship between excess adiposity and cardiovascular disease. Although body mass index (BMI) is the most used approach to estimate excess weight, other anthropometric indices have been developed to measure total body and abdominal adiposity. Here, our objective was to assess the usefulness of these anthropometric indices to detect subclinical atheromatous disease. METHODS A cross-sectional study with 6,809 middle-aged subjects (mean age, 57 [53-63] years) with low to moderate cardiovascular risk from the ILERVAS project. Measures of total body fat (BMI, Clínica Universidad de Navarra - Body Adiposity Estimator [CUN-BAE], and Deurenberg's formula) and central adiposity (waist and neck circumferences, conicity index, waist-to-height ratio, Bonora's equation, the A body adiposity index, and body roundness index) were performed in all participants. Bilateral carotid and femoral ultrasound vascular studies allowed the identification of subjects with plaque. -Results: All measured indices were significantly higher in males with subclinical carotid or femoral plaques (p ≤ 0.021 for all). Also, a positive and significant correlation between all indices and the number of affected territories was found (p ≤ 0.013 for all). From the ROC analysis, all measurements identified patients with asymptomatic atheromatosis but none of them helped make clinical decisions. Regarding females, the results were less conclusive. CONCLUSION Obesity indices are related to subclinical atheromatosis, especially in men, in a large cohort of middle-aged subjects. However, the indices could not detect the presence of arterial plaque, so, when used in isolation, are unlikely to be decisive.
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Santos MD, Buti M, López-Cano C, Sánchez E, Vidal A, Hernández M, Lafarga A, Gutiérrez-Carrasquilla L, Rius F, Bueno M, Lecube A. Dynamics of Anthropometric Indices in a Large Paired Cohort With 10 Years of Follow-Up: Paving the Way to Sarcopenic Obesity. Front Endocrinol (Lausanne) 2020; 11:209. [PMID: 32425882 PMCID: PMC7212464 DOI: 10.3389/fendo.2020.00209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/25/2020] [Indexed: 01/22/2023] Open
Abstract
Introduction: Paired cohort investigations assessing the evolution of anthropometric indices are scarce. Here we assessed the 10-year evolution of BMI, total body fat, and lean body mass in 50,019 participants aged 18-90 years at the time of first assessment. Material and Methods: A retrospective cohort study using an electronic database that contains anonymized, longitudinal data from Primary Care medical records covering the 2007-2008 and 2017-2018 periods. Total body fat was estimated using the Clínica Universidad de Navarra-Body Adiposity Estimator formula, and the Hume formula was applied to estimate lean body mass. Results: The mean BMI of participants <60 years old in the 2007-2008 period increased significantly, from 27.5 to 28.3 kg/m2 (p < 0.001). However, the BMI of older subjects decreased during the next decade, from 28.9 to 28.3 kg/m2 (p < 0.001). The estimated total body fat showed a continuous progressive increase over all ages. Finally, lean body mass showed a progressive increase until the 40s, with a plateau between 40-45 years old and an uninterrupted decrease until older ages. Also, subjects who increased their BMI by 2 kg/m2 during the 10-year period were mainly women and younger at baseline, with a lower initial BMI and total body fat in comparison with those who experienced a BMI decrease of ≥2.0 kg/m2. Conclusion: The evolutions of BMI and the estimated body compositions reported here confirm that the adverse decrease in lean body mass begins in middle age. The proportion of older subjects is important when evaluating overweight and obesity prevalence in cross-sectional studies.
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Calero-Bernal R, Horcajo P, Hernández M, Ortega-Mora LM, Fuentes I. Absence of Neospora caninum DNA in Human Clinical Samples, Spain. Emerg Infect Dis 2019; 25:1226-1227. [PMID: 31107232 PMCID: PMC6537714 DOI: 10.3201/eid2506.181431] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Low antibody titers to Neospora caninum have been reported in humans, but infection has not been confirmed. We used N. caninum-specific PCR to test 600 clinical samples from patients with toxoplasmosis signs but Toxoplasma gondii-negative PCR results. We did not detect N. caninum DNA, demonstrating it is an unlikely opportunistic zoonotic agent.
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Sánchez N, Hernández M, Cruz JP, Mellado C. Phenotypic spectrum of neonatal CHARGE syndrome. REVISTA CHILENA DE PEDIATRIA 2019; 90:533-538. [PMID: 31859737 DOI: 10.32641/rchped.v90i5.1080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/02/2019] [Indexed: 11/12/2022]
Abstract
INTRODUCTION CHARGE syndrome is a genetic disorder of wide phenotypic variability, of autosomal dominant in heritance, caused by pathogenic variants in the CHD7 gene. OBJECTIVE To describe the broad pheno typic spectrum of neonatal CHARGE syndrome, heterozygous for the CHD7 gene, and the usefulness of genome sequencing in diagnostic confirmation, considering differential diagnoses. CLINICAL CASE 34-week preterm newborn, with severe prenatal history of polyhydramnios, increased nuchal trans- lucency, and hyperechogenic cardiac focus, with a TORCH study that ruled out congenital infection. Peripheral facial paralysis, choanal atresia, multiple dysmorphisms, congenital heart disease, and bilateral retinochoroidal coloboma were observed at birth. The neuroimaging study showed hypo plasia of the cochlea and bilateral semicircular canals, and pontocerebellar hypoplasia. The auditory evoked potentials showed deep right-sided sensorineural hearing loss and left anacusis. The patient developed hypocalcemia and immunological alterations, confirming hypoparathyroidism and thy mus hypoplasia. The karyogram was normal and 22q11.2 microdeletion was excluded through mul tiplex ligation-dependent probe amplification (MPLA). A pathogenic variant in the CHD7 gene was detected that confirmed the clinical suspicion of CHARGE syndrome. CONCLUSIONS The overlap of clinical characteristics of CHARGE syndrome requires molecular genetic confirmation, considering differences in evolution, therapies, and recurrence risks with other genetic syndromes.
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Hernández M, Quijada NM, Rodríguez-Lázaro D, Eiros JM. [Bioinformatics of next generation sequencing in clinical microbiology diagnosis]. Rev Argent Microbiol 2019; 52:150-161. [PMID: 31784184 DOI: 10.1016/j.ram.2019.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 12/17/2022] Open
Abstract
Massive parallel sequencing (High-Throughput Sequencing [HTS]) allows to read millions or billions of DNA sequences or fragments (reads) in parallel and is revolutionizing microbiology research, moving from laboratory methods to computed-assisted analyses, with the compelling use of Bioinformatics. The time and cost reduction in studies on the microbiota, microbiome and metagenome, allows to rapidly progress in diagnosis, taxonomy, epidemiology, comparative genomics, virulence, discovery of genes or variants of interest and the association of microorganisms with traditionally considered non-microbial diseases. In this review, the terminology, the sequencing technologies and their applications are described for microbial analysis using open-source bioinformatics software, analysis pipelines, databases and web platforms that allow a user-friendly bioinformatics approach affordable by the clinical microbiologist and infectious disease practitioners.
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Quijada NM, Hernández M, Rodríguez-Lázaro D. High-throughput sequencing and food microbiology. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 91:275-300. [PMID: 32035598 DOI: 10.1016/bs.afnr.2019.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Massive parallel sequencing (High-Throughput Sequencing, HTS) permits reading of sequenced millions to billions short DNAs in parallel (reads) and is revolutionizing microbiology and food safety research from the laboratory methods to computational analysis, with the inevitable use of Bioinformatics. The time and cost reduction of microbiota, microbiome and metagenome studies allows the rapid progress in diagnosis, taxonomy, epidemiology, comparative genomics, virulence, discovery of genes or variants of interest and the association of microorganisms with food spoilage and foodborne infections.
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Sánchez E, Betriu À, López-Cano C, Hernández M, Fernández E, Purroy F, Bermúdez-López M, Farràs-Sallés C, Barril S, Pamplona R, Rius F, Hernández C, Simó R, Lecube A. Characteristics of atheromatosis in the prediabetes stage: a cross-sectional investigation of the ILERVAS project. Cardiovasc Diabetol 2019; 18:154. [PMID: 31729979 PMCID: PMC6857207 DOI: 10.1186/s12933-019-0962-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/02/2019] [Indexed: 12/23/2022] Open
Abstract
Background Prediabetes has recently been associated with subclinical atheromatous disease in the middle-aged population. Our aim was to characterize atheromatous plaque burden by the number of affected territories and the total plaque area in the prediabetes stage. Methods Atheromatous plaque burden (quantity of plaques and total plaque area) was assessed in 12 territories from the carotid and femoral regions using ultrasonography in 6688 non-diabetic middle-aged subjects without cardiovascular disease. Prediabetes was defined by glycosylated hemoglobin (HbA1c) between 5.7 and 6.4% according to the American Diabetes Association guidelines. Results Prediabetes was diagnosed in 33.9% (n = 2269) of the ILERVAS participants. Subjects with prediabetes presented a higher prevalence of subclinical atheromatous disease than participants with HbA1c < 5.7% (70.4 vs. 67.5%, p = 0.017). In the population with prediabetes this was observed at the level of the carotid territory (p < 0.001), but not in the femoral arteries. Participants in the prediabetes stage also presented a significantly higher number of affected territories (2 [1;3] vs. 1 [0;3], p = 0.002), with a positive correlation between HbA1c levels and the number of affected territories (r = 0.068, p < 0.001). However, atheromatosis was only significantly (p = 0.016) magnified by prediabetes in those subjects with 3 or more cardiovascular risk factors. The multivariable logistic regression model showed that the well-established cardiovascular risk factors together with HbA1c were independently associated with the presence of atheromatous disease in participants with prediabetes. When males and females were analyzed separately, we found that only men with prediabetes presented both carotid and femoral atherosclerosis, as well as an increase of total plaque area in comparison with non-prediabetic subjects. Conclusions The prediabetes stage is accompanied by an increased subclinical atheromatous disease only in the presence of other cardiovascular risk factors. Prediabetes modulates the atherogenic effect of cardiovascular risk factors in terms of distribution and total plaque area in a sex-dependent manner. Trial registration NCT03228459 (clinicaltrials.gov)
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Huntley D, Giménez E, Pascual MJ, Hernández-Boluda JC, Gago B, Vázquez L, Piñana JL, García M, Pérez A, Serrano D, Hernández M, Albert E, Solano C, Navarro D. Incidence, features, and outcomes of cytomegalovirus DNAemia in unmanipulated haploidentical allogeneic hematopoietic stem cell transplantation with post-transplantation cyclophosphamide. Transpl Infect Dis 2019; 22:e13206. [PMID: 31677215 DOI: 10.1111/tid.13206] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Conflicting data have been published as to the risk of cytomegalovirus (CMV) DNAemia and CMV disease in patients undergoing haploidentical hematopoietic stem cell transplantation (haplo-HSCT) with post-transplantation cyclophosphamide. METHODS We conducted a multicenter retrospective study including 118 patients subjected to unmanipulated haplo-HSCT to further clarify this issue. An historic cohort comprising 165 patients undergoing other transplant modalities (HLA-matched related, matched unrelated or mismatched) was built for comparison purposes. Plasma CMV DNA monitoring was performed using two highly sensitive real-time PCR assays. RESULTS Overall, the cumulative incidence of CMV DNAemia, recurrent CMV DNAemia, and CMV DNAemia requiring preemptive antiviral therapy in patients undergoing haplo-HSCT was 63.9%, 34.9%, and 50.1%, respectively. These figures were rather comparable for other transplant modalities (P = .22, P = .13 and P = .72, respectively). A trend toward longer duration of episodes and shorter CMV DNA doubling times was observed in haplo-HSCT patients in comparison with other transplant modalities. Furthermore, median CMV DNA peak load was significantly higher in haplo-HSCTs (P = .008), yet overall mortality by day 180 and 365 was the same across comparison groups. There were five cases of CMV disease, and all occurred in haplo-HSCT patients. This latter observation is worrying and merits further investigation. CONCLUSIONS The incidence of initial and recurrent episodes of CMV DNAemia either requiring or not antiviral therapy in unmanipulated haplo-HSCT was comparable to other transplant modalities in our cohort.
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Muñoz-Miguel J, Molina-Barceló A, Vanaclocha M, Ibañez J, Romeo P, Pinto M, Hernández M, Alcaraz M, Salas D. Inequalities in the participation and outcomes of breast cancer screening programs in Valencia, Spain. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz187.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Breast cancer remains the most frequent tumour and first cancer related cause of death in the Valencian Community. Despite most of the population being aware of the existence of breast cancer screening programs (BCSP), there are great differences in uptake that are likely attributed to social determinants. The objective of this study, alligning with SDGs 3 and 10, is to assess inequalities in breast cancer screening uptake, diagnosis and treatment delay in the city of Valencia.
Methods
The population of study included 128 123 women invited to participate in the BCSP in the city of Valencia between 2014 and 2016. Uptake, diagnosis and treatment delay were assessed as outcomes. Covariates included country of origin, education level, size of family unit, risk of vulnerability, age, presence of disability, assigned health department and a social deprivation index. Bivariate analysis and logistic regression models were performed for each independent variable.
Results
BCSP uptake was of 63,8% with a diagnostic rate of 5,36‰. 76,7% of patients were below the 75th percentile of delay between diagnosis and treatment (52 days). Statistically significant relationships were found between uptake of BCSP and all studied covariates both in the bivariate analysis and regression model. Presence of disability, family unit size, age and health department had a statistically significant relationship with diagnosis in the bivariate analysis, of which only one health department and the social deprivation index’s second quintile remained significant in the regression model. No significant relations were found between treatment delay and any of the covariates.
Conclusions
Strong inequalities in the BCSP have been identified. Influencing factors must be targeted so as to ensure an egalitarian access to BCSP. Given its multifactorial nature, simple analyses must be avoided in the study of inequalities in breast cancer diagnosis. Data on lifestyle may contribute to future models.
Key messages
Social determinants continue to have an impact in the uptake of breast cancer screening programs in the city of Valencia. The assessment of inequalities in breast cancer diagnosis cannot be approached uniquely through the analysis of social determinants and may Benefit from the inclusion of data on lifestyle choices.
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Manso B, Melero B, Stessl B, Fernández-Natal I, Jaime I, Hernández M, Wagner M, Rovira J, Rodríguez-Lázaro D. Characterization of Virulence and Persistence Abilities of Listeria monocytogenes Strains Isolated from Food Processing Premises. J Food Prot 2019; 82:1922-1930. [PMID: 31633423 DOI: 10.4315/0362-028x.jfp-19-109] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We report the characterization of 15 Listeria monocytogenes strains isolated from various food processing plants by multivirulence locus sequence typing to determine virulence types (VTs) and epidemic clones. Molecular mechanisms involved in adaptation to food processing environments and related to virulence were also studied. Phenotypic behaviors associated with various antimicrobials, biofilm formations, and invasiveness were assessed. There were 11 VTs among the 15 L. monocytogenes strains. Strains belonging to six VTs were stress survival islet 1 (SSI-1) and one strain of VT94 was SSI-2. Tn6188 was found in VT6 and VT94 strains, and bcrABC cassette genes were identified in VT21, VT60, and VT63 strains. Only one strain, in VT20, showed llxS, whereas a full-size inlA was detected in strains belonging to VT8, VT20, VT21, and VT63. VT10, VT20, VT21, VT60, and VT63 strains were the most tolerant to studied disinfectants. A VT6 strain showed the strongest biofilm formation ability in polyvinyl chloride, and strains belonging to VT10, VT11, VT20, and VT94 had moderate abilities. Antimicrobial sensitivity tests showed that all the L. monocytogenes strains were multidrug resistant. F tests revealed that only strains of VT10, VT60, and VT94 were significantly noninvasive (P < 0.05) in Caco-2 cells. Our findings illustrate how L. monocytogenes isolates exploit diverse mechanisms to adapt to adverse conditions. Consequently, detailed characterization of L. monocytogenes isolates is required for comprehensive elimination of this pathogenic bacterium in food processing environments.
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de Mendoza C, Roc L, Fernández‐Alonso M, Soriano V, Rodríguez C, Vera M, del Romero J, Marcaida G, Ocete M, Caballero E, Molina I, Aguilera A, Rodríguez‐Calviño J, Navarro D, Rivero C, Vilariño M, Benito R, Algarate S, Gil J, Ortiz de Lejarazu R, Rojo S, Eirós J, San Miguel A, Manzardo C, Miró J, García J, Paz I, Poveda E, Calderón E, Escudero D, Trigo M, Diz J, García‐Campello M, Rodríguez‐Iglesias M, Hernández‐Betancor A, Martín A, Ramos J, Gimeno A, Gutiérrez F, Rodríguez J, Sánchez V, Gómez‐Hernando C, Cilla G, Pérez‐Trallero E, López‐Aldeguer J, Fernández‐Pereira L, Niubó J, Hernández M, López‐Lirola A, Gómez‐Sirvent J, Force L, Cifuentes C, Pérez S, Morano L, Raya C, González‐Praetorius A, Pérez J, Peñaranda M, Hernáez‐Crespo S, Montejo J, Roc L, Martínez‐Sapiña A, Viciana I, Cabezas T, Lozano A, Fernández J, García‐Bermejo I, Gaspar G, García R, Górgolas M, Vegas C, Blas J, Miralles P, Valeiro M, Aldamiz T, Margall N, Guardia C, do Pico E, Polo I, Aguinaga A, Ezpeleta C, Sauleda S, Pirón M, González R, Barea L, Jiménez A, Blanco L, Suárez A, Rodríguez‐Avial I, Pérez‐Rivilla A, Parra P, Fernández M, Fernández‐Alonso M, Treviño A, Requena S, Benítez‐Gutiérrez L, Cuervas‐Mons V, de Mendoza C, Barreiro P, Soriano V, Corral O, Gómez‐Gallego F. HTLV testing of solid organ transplant donors. Clin Transplant 2019; 33:e13670. [DOI: 10.1111/ctr.13670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/06/2019] [Accepted: 07/08/2019] [Indexed: 11/27/2022]
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Sánchez E, Betriu À, Yeramian A, Fernández E, Purroy F, Sánchez-de-la-Torre M, Pamplona R, Miquel E, Kerkeni M, Hernández C, Simó R, Lecube A, Hernández M, Rius F, Polanco D, Barbé F, Torres G, Suárez G, Portero-Otin M, Jové M, Colàs-Campàs L, Benabdelhak I, Farràs C, Ortega M, Manuel Valdivielso J, Bermúdez-López M, Martínez-Alonso M. Skin Autofluorescence Measurement in Subclinical Atheromatous Disease: Results from the ILERVAS Project. J Atheroscler Thromb 2019; 26:879-889. [PMID: 30842389 PMCID: PMC6800392 DOI: 10.5551/jat.47498] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aim: Advanced glycation end-products (AGEs) have been involved in the atherogenic process in the high-risk population. The goal of this study was to demonstrate that AGEs are related to subclinical atheromatous disease in subjects with low to moderate vascular risk. Methods: A cross-sectional study in which 2,568 non-diabetic subjects of both sexes without cardiovascular disease were included. Subcutaneous content of AGEs was assessed by skin autofluorescence (SAF) and subclinical atheromatous disease was measured by assessing the atheromatous plaque burden in carotid and femoral regions using ultrasonography. In addition, serum pentosidine, carboxymethyl-lysine (CML) and AGE receptors (RAGE) were assessed in a nested case-control study with 41 subjects without plaque and 41 individuals subjects with generalized disease. Results: Patients with atheromatous plaque had a higher SAF than those with no plaque (1.9 [1.7 to 2.3] vs. 1.8 [1.6 to 2.1] arbitrary units (AU), p % 0.001). The SAF correlated with the total number of affected regions (r = 0.171, p < 0.001), increasing progressively from 1.8 [1.6 to 2.1] AU in those without atheromatous disease to 2.3 [1.9 to 2.7] AU in patients with ≥ 8 plaques (p < 0.001). A correlation was also observed between SAF and the total plaque area (r = 0.113, p < 0.001). The area under the Receiver Operating Characteristic curve was 0.65 (0.61 to 0.68) for identifying male subjects with atheromatous disease. The multivariable logistic regression model showed a significant and independent association between SAF and the presence of atheromatous disease. However, no significant differences in serum pentosidine, CML, and RAGE were observed. Conclusions: Increased subcutaneous content of AGEs is associated with augmented atheromatous plaque burden. Our results suggest that SAF may provide clinically relevant information to the current strategies for the evaluation of cardiovascular risk, especially among the male population.
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Aliagas E, Martínez-Iniesta M, Hernández M, Alay A, Cordero D, Solé X, Rivas F, Ureña A, Vilariño N, Muñoz-Pinedo C, Villanueva A, Nadal E. MA23.02 CDK4/6 Inhibitors Show Antitumor Effects in Preclinical Models of Malignant Pleural Mesothelioma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miguela-Villoldo P, Hernández M, Moreno MÁ, Rodríguez-Lázaro D, Quesada A, Domínguez L, Ugarte-Ruiz M. Carbapenemase-Producing Elizabethkingia Meningoseptica from Healthy Pigs Associated with Colistin Use in Spain. Antibiotics (Basel) 2019; 8:E146. [PMID: 31514353 PMCID: PMC6783829 DOI: 10.3390/antibiotics8030146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 11/26/2022] Open
Abstract
Carbapenems are considered last-resort antimicrobials, especially for treating infections involving multidrug-resistant Gram-negative bacteria. In recent years, extended-spectrum β-lactamase (ESBL) and carbapenemase-producing Gram-negative bacteria have become widespread in hospitals, community settings, and the environment, reducing the range of effective therapeutic alternatives. The use of colistin to treat infection caused by these multi-drug bacteria may favour the selection and persistence of carbapenem-resistant bacteria. In this study, it is described, for the first time to our knowledge, a carbapenemase-producing isolate of Elizabethkingia meningoseptica from healthy pigs in Spain. The isolate we report was recovered during a study to detect colistin-resistant bacteria from faecal samples of healthy food-production animals using a chromogenic selective medium. Unexpectedly, we found an isolate of Elizabethkingia meningoseptica with high Minimum Inhibitory Concentration (MIC) values for several antibiotics tested. Molecular analysis did not show any mcr family genes related with colistin resistance, but two carbapenemase genes, blaB-12_1 and blaGOB-17_1, were detected. This finding in healthy animals could suggest that colistin may favour the selection and persistence of carbapenem-resistant bacteria.
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Granado-Casas M, Alcubierre N, Martín M, Real J, Ramírez-Morros AM, Cuadrado M, Alonso N, Falguera M, Hernández M, Aguilera E, Lecube A, Castelblanco E, Puig-Domingo M, Mauricio D. Improved adherence to Mediterranean Diet in adults with type 1 diabetes mellitus. Eur J Nutr 2019; 58:2271-2279. [PMID: 30019088 PMCID: PMC6689285 DOI: 10.1007/s00394-018-1777-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 07/11/2018] [Indexed: 01/10/2023]
Abstract
PURPOSE We aimed to assess food intake and adherence to the Mediterranean Diet in patients with T1D compared with nondiabetic individuals. METHODS This was an observational, multicenter study in 262 T1D subjects and 254 age- and sex-matched nondiabetic subjects. A validated food-frequency questionnaire was administered. The alternate Mediterranean Diet Score (aMED) and alternate Healthy Eating Index (aHEI) were assessed. The clinical variables were also collected. The analysis of data included comparisons between groups and multivariate models. RESULTS Compared to the controls, the patients with T1D had a higher intake of dairy products (p < 0.001), processed meat (p = 0.001), fatty fish (p = 0.009), fruits and vegetables (p < 0.001), nuts (p = 0.011), legumes (p < 0.001), potatoes (p = 0.045), and bread (p = 0.045), and a lower intake of seafood (p = 0.011), sweets (p < 0.001), and alcohol drinks (p = 0.025). This intake pattern resulted in a higher consumption of complex carbohydrates (p = 0.049), fiber (p < 0.001), protein (p < 0.001), polyunsaturated fatty acids (PUFA) (p = 0.007), antioxidants (p < 0.001), vitamins (p < 0.001), and minerals (p < 0.001). The frequency of patients with T1D and low aMED score (23.2%) was lower than that of the controls (35.4%; p = 0.019). The overall multivariate analysis showed that, among other factors, being a T1D subject was associated with improved aMED and aHEI scores (p = 0.006 and p < 0.001). In patients with T1D, residing in a nonurban area was associated with improved aMED and aHEI scores (p = 0.001 and p < 0.001). CONCLUSIONS Adult patients with T1D showed healthier dietary habits and a higher adherence to the Mediterranean Diet than nondiabetic subjects. Residing in a nonurban area is associated with an improved dietary pattern.
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Célia da Silva Lanna M, Viancelli A, Michelon W, Castro Carvalho SV, de Almeida Dos Reis D, Fernandez de Salles LA, Sant'Anna IH, Resende LT, de Souza Ferreira C, Aparecido das Chagas I, Hernández M, Treichel H, Rodríguez-Lázaro D, Fongaro G. Household-based biodigesters promote reduction of enteric virus and bacteria in vulnerable and poverty rural area. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:8-13. [PMID: 31146241 DOI: 10.1016/j.envpol.2019.05.104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/20/2019] [Accepted: 05/20/2019] [Indexed: 05/03/2023]
Abstract
The present study evaluated the river water quality improvement by implementation of household-based biodigesters in vulnerability and poverty rural area, in Minas Gerais State-Brazil. For that, 78 household-based biodigesters were installed for domestic wastewater treatment. Wastewater was collected before and after treatment and the physicochemical parameters and pathogens removal (human adenovirus (HAdV), hepatitis A (HAV) virus, Salmonella sp. and Escherichia coli) were evaluated; Additionally, river water was sampled before and after the household-based biodigesters implementation, to verify the contamination reduction and the positive impact of domestic wastewater treatment on waterborne pathogen reduction, considering HAdV, HAV, Salmonella sp. and E. coli quantification. The applicability in real-scale of decentralized treatment systems using household-based biodigesters promoted reduction of 90, 99, 99.99 and 99.999% from HAV, Salmonella sp., E. coli and HAdV from domestic wastewater, respectively; The river water quality improvement before the wastewater treatment application was highlight in the present study, considering that the reduction of waterborne pathogens in this water in 90, 99.99 and 99.999% of E. coli, HAV and HAdV, respectively (Salmonella sp. was not detected in river water). In general, this is an important study for encouraging the decentralized sanitation in vulnerable and poverty area, as well in rural sites, considering the positive impact of this implementation on public health.
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Melero B, Manso B, Stessl B, Hernández M, Wagner M, Rovira J, Rodríguez-Lázaro D. Distribution and Persistence of Listeria monocytogenes in a Heavily Contaminated Poultry Processing Facility. J Food Prot 2019; 82:1524-1531. [PMID: 31414898 DOI: 10.4315/0362-028x.jfp-19-087] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We studied the colonization and distribution of Listeria monocytogenes in a heavily contaminated poultry processing plant over a 1-year period. A total of 180 nonfood contact surfaces, 70 food contact surfaces, 29 personnel, and 40 food samples were analyzed. L. monocytogenes isolates were subtyped by PCR serotyping, pulsed-field gel electrophoresis (PFGE), and multilocus sequence typing. L. monocytogenes was detected in samples collected at every visit to the plant, and 43.8% (visit 4) to 65.6% (visit 7) of samples were positive, for an overall prevalence of 55.2%. The deboning area had the highest prevalence of positive samples (83.3%), and the processing area had the highest diversity of PFGE types. Ninety percent of the final products were positive for L. monocytogenes. Most of the isolates belonged to well-known persistent L. monocytogenes sequence types (ST9 and ST121). This study illustrates a well-established L. monocytogenes contamination problem in a poultry processing plant associated with a generalized failure of the food safety system as a whole. These findings reflect the potential for L. monocytogenes contamination when the food safety and quality management system is unsatisfactory, as described in the present study. It is essential to revise food safety and quality management systems to eliminate L. monocytogenes from food processing facilities, to control the entrance of sporadic sequence types, and to prevent L. monocytogenes spread within such facilities, especially in those premises with higher L. monocytogenes prevalence in the environment and final food products.
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Rodilla Sala E, Colomer V, Perseguer Z, Jordá A, Jordá R, Prats R, García M, Vidal L, Sanchis M, Córcoles M, Mud F, Bellver O, Adell M, Ferrer F, Hernández M, Llopis T, Rodrigo M, Baixauli V, Climent M, Moreno L. DIFFERENCES IN AORTIC AUGMENTATION PRESSURE BETWEEN NORMOTENSIVE AND HYPERTENSIVE SUBJECTS MEASURED IN COMMUNITY PHARMACIES IN SPAIN. J Hypertens 2019. [DOI: 10.1097/01.hjh.0000572696.06657.f1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sánchez M, Sánchez E, Hernández M, González J, Purroy F, Rius F, Pamplona R, Farràs-Sallés C, Gutiérrez-Carrasquilla L, Fernández E, Bermúdez-López M, Salvador J, Salas-Salvadó J, Lecube A. Dissimilar Impact of a Mediterranean Diet and Physical Activity on Anthropometric Indices: A Cross-Sectional Study from the ILERVAS Project. Nutrients 2019; 11:E1359. [PMID: 31212934 PMCID: PMC6627626 DOI: 10.3390/nu11061359] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/11/2019] [Accepted: 06/14/2019] [Indexed: 12/16/2022] Open
Abstract
There is a close relationship between lifestyle behaviors and excess adiposity. Although body mass index (BMI) is the most used approach to estimate excess weight, other anthropometric indices have been developed to measure total body and abdominal adiposity. However, little is known about the impact of physical activity and adherence to a Mediterranean diet on these indices. Here we report the results of a cross-sectional study with 6672 middle-aged subjects with low to moderate cardiovascular risk from the Ilerda Vascular (ILERVAS) project. The participants' adherence to physical activity (International Physical Activity Questionnaire short form) and MedDiet (Mediterranean Diet Adherence Screener) was evaluated. Measures of total adiposity (BMI, Clínica Universidad de Navarra-Body Adiposity Estimator (CUN-BAE), and Deurenberg's formula), central adiposity (waist and neck circumferences, conicity index, waist to height ratio, Bonora's equation, A body adiposity index, and body roundness index), and lean body mass (Hume formula) were assessed. Irrespective of sex, lower indices of physical activity were associated with higher values of total body fat and central adiposity. This result was constant regardless of the indices used to estimate adiposity. However, the association between MedDiet and obesity indices was much less marked and more dependent on sex than that observed for physical activity. Lean body mass was influenced by neither physical activity nor MedDiet adherence. No joint effect between physical activity and MedDiet to lower estimated total or central adiposity indices was shown. In conclusion, physical activity is related to lower obesity indices in a large cohort of middle-aged subjects. MedDiet showed a slight impact on estimated anthropometric indices, with no joint effect when considering both lifestyle variables. ClinTrials.gov Identifier: NCT03228459.
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Fongaro G, Viancelli A, Dos Reis DA, Santiago AF, Hernández M, Michellon W, da Silva Lanna MC, Treichel H, Rodríguez-Lázaro D. Mineral Waste Containing High Levels of Iron from an Environmental Disaster (Bento Rodrigues, Mariana, Brazil) is Associated with Higher Titers of Enteric Viruses. FOOD AND ENVIRONMENTAL VIROLOGY 2019; 11:178-183. [PMID: 30747345 DOI: 10.1007/s12560-019-09373-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 02/06/2019] [Indexed: 06/09/2023]
Abstract
Although the effects of heavy metals on the behavior, including infectivity, of bacteria have been studied, little information is available about their effects on enteric viruses. We report an investigation of effects on the biosynthesis of human adenoviruses (HAdV) and hepatitis A (HAV) of waters contaminated with mineral waste following an environmental disaster in Mariana City, Minas Gerais State, Brazil. The study area was affected on November 5, 2015, by 60 million m3 of mud (containing very high concentrations of iron salts) from a mining reservoir (Fundão), reaching the Gualaxo do Norte River (sites evaluated in this study), the "Rio Doce" River and finally the Atlantic Ocean. We found substantial counts of infectious HAdV and HAV (by qPCR) in all sampled sites from Gualaxo do Norte River, indicating poor basic sanitation in this area. The effects of iron on viral infection processes were evaluated using HAdV-2 and HAV-175, as DNA and RNA enteric virus models, respectively, propagated in the laboratory and exposed to this contaminated water. Experiments in field and laboratory scales found that the numbers of plaque forming units (PFU) of HAdV and HAV were significantly higher in contaminated water with high iron concentrations than in waters with low iron concentration (< 20 µg/L of iron). These findings indicate that iron can potentiate enteric virus infectivity, posing a potential risk to human and animal health, particularly during pollution disasters such as that described here in Mariana, Brazil.
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