1,847 results match your criteria cruz argentina

Intake of microplastics by commercial fish: A Bayesian approach.

Environ Monit Assess 2021 Jun 10;193(7):402. Epub 2021 Jun 10.

Universidade Federal do Sul da Bahia, Centro de Formação em Ciências Agroflorestais, Itabuna, Bahia, Brazil.

The disordered growth of large cities around water bodies causes environmental damage due to discarded plastics and microplastics (MPs) that aquatic organisms can ingest. This study analyzed the occurrence, type, and abundance of MPs in the gastrointestinal contents of four species of commercial fish (120 total specimens), namely, Brazilian mojarra (Eugerres brasilianus) and mullets (Mugil curema, Mugil curvidens, and Mugil liza), obtained in Porto Seguro in Bahia, Brazil, between March and May 2019. A priori probability distributions were generated using a Bayesian approach and simulations to assess MP intake based on varying exposure amounts (θ = 0. Read More

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Urban infestation by Triatoma infestans (Hemiptera: Reduviidae), an overlooked phenomena for Chagas disease in Argentina.

Mem Inst Oswaldo Cruz 2021 2;116:e210056. Epub 2021 Jun 2.

Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Ecología, Genética y Evolución de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina.

Vector-borne transmission of Chagas disease in urban areas of Argentina has been an overlooked phenomena. We conducted the first comprehensive cross-sectional study of domestic infestation with Triatoma infestans and vector infection with Trypanosoma cruzi in a metropolitan area of San Juan, Argentina. Our results document the occurrence of T. Read More

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[Impact of an active surveillance program and infection control measures on the incidence of carbapenem-resistant Gram-negative bacilli in an intensive care unit].

Rev Argent Microbiol 2021 Jun 1. Epub 2021 Jun 1.

Laboratorio de Bacteriología Certificado, Cátedra de Bacteriología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina.

Hospital-acquired infections caused by carbapenem-resistant Gram-negative bacteria (CRGNB) have been increasingly reported worldwide and are associated with high rates of mortality especially in intensive care units(ICUs). Early identification through rectal surveillance cultures and implementation of infection control measures(ICM) including contact precautions, staff education on cleaning and hand hygiene may reduce the spread of these microorganisms. The aim of this work was to assess the impact of enhanced ICM on CRGNB colonization and to describe the molecular epidemiology of these bacteria in a polyvalent ICU in a tertiary level hospital. Read More

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Physiological responses and specific fatty acids composition of Microcystis aeruginosa exposed to total solar radiation and increased temperature.

Photochem Photobiol Sci 2021 Jun 3. Epub 2021 Jun 3.

Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Centro Atómico Constituyentes, Av. Gral. Paz 1499 (1650) Gral. San Martín, Buenos Aires, Argentina.

The combined effects of increased temperature and solar ultraviolet radiation (UVR, 280-400 nm) on M. aeruginosa cultures was analyzed in terms of cell abundance, reactive oxygen and nitrogen species (ROS/RNS), antioxidant activity of catalase (CAT), superoxide dismutase (SOD), glutathione S transferase (GST), fatty acids (FA) content and lipid damage. After 12 days exposure to high temperature (29 °C), cells were exposed to solar UVR (4 h). Read More

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Vulnerability to climate change of a microendemic lizard species from the central Andes.

Sci Rep 2021 Jun 2;11(1):11653. Epub 2021 Jun 2.

Instituto de Investigaciones en Biodiversidad y Medioambiente, Consejo Nacional de Investigaciones Científicas y Técnicas (INIBIOMA-CONICET), Quintral 1250, 8400, San Carlos de Bariloche, Argentina.

Given the rapid loss of biodiversity as consequence of climate change, greater knowledge of ecophysiological and natural history traits are crucial to determine which environmental factors induce stress and drive the decline of threatened species. Liolaemus montanezi (Liolaemidae), a xeric-adapted lizard occurring only in a small geographic range in west-central Argentina, constitutes an excellent model for studies on the threats of climate change on such microendemic species. We describe field data on activity patterns, use of microhabitat, behavioral thermoregulation, and physiology to produce species distribution models (SDMs) based on climate and ecophysiological data. Read More

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Therapeutic implications of improved molecular diagnostics for rare CNS-embryonal tumor entities: results of an international, retrospective study.

Neuro Oncol 2021 Jun 2. Epub 2021 Jun 2.

Department of Neurooncology, Russian Scientific Center of Radiology, Moscow, Russia.

Background: Only few data are available on treatment-associated behavior of distinct rare CNS-embryonal tumor entities previously treated as "CNS-primitive neuroectodermal tumors" (CNS-PNET). Respective data on specific entities, including CNS neuroblastoma, FOXR2 activated (CNS NB-FOXR2), and embryonal tumor with multi-layered rosettes (ETMR) are needed for development of differentiated treatment strategies.

Methods: Within this retrospective, international study, tumor samples of clinically well-annotated patients with the original diagnosis of CNS-PNET were analyzed using DNA methylation arrays (n=307). Read More

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Biological and Host Range Characteristics of (Coleoptera: Chrysomelidae), a Candidate Biological Control Agent of Invasive spp. (Onagraceae) in the USA.

Insects 2021 May 19;12(5). Epub 2021 May 19.

Fundación para el Estudio de Especies Invasivas (FuEDEI), Simón Bolívar 1559, Hurlingham (CP1686), Buenos Aires B1686EFA, Argentina.

Exotic water primroses ( spp.) are aggressive invaders in aquatic ecosystems worldwide. To date, management of exotic spp. Read More

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Personalised Prophylaxis in a Child with Haemophilia A and Type 1 Diabetes.

Clin Pract 2021 May 8;11(2):287-292. Epub 2021 May 8.

Hemophilia Foundation of Salta, Salta 4400, Argentina.

Poor management of either type 1 diabetes or haemophilia A can lead to complications such as organ dysfunction and haemarthropathy. Here, we describe the case of an 8-year-old boy diagnosed with severe haemophilia A shortly after birth. At 2 years old, he was also diagnosed with type 1 diabetes. Read More

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On the Thermal Models for Resistive Random Access Memory Circuit Simulation.

Nanomaterials (Basel) 2021 May 11;11(5). Epub 2021 May 11.

Electrical Engineering and Computer Science Department, University of California, Berkeley, CA 94720-1770, USA.

Resistive Random Access Memories (RRAMs) are based on resistive switching (RS) operation and exhibit a set of technological features that make them ideal candidates for applications related to non-volatile memories, neuromorphic computing and hardware cryptography. For the full industrial development of these devices different simulation tools and compact models are needed in order to allow computer-aided design, both at the device and circuit levels. Most of the different RRAM models presented so far in the literature deal with temperature effects since the physical mechanisms behind RS are thermally activated; therefore, an exhaustive description of these effects is essential. Read More

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Loose Ends in the Phylogeny: Five New Myxotelamonoid Species Indicate a High Diversity of These Ectomycorrhizal Fungi with South American .

Life (Basel) 2021 May 5;11(5). Epub 2021 May 5.

Institute of Microbiology, University Innsbruck, 6020 Innsbruck, Austria.

This paper is a contribution to the current knowledge of taxonomy, ecology and distribution of South American (Pers.) Gray. is among the most widely distributed and species-rich basidiomycete genera occurring with South American and species are found in many distinct habitats, including shrublands and forests. Read More

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Challenges and perspectives in the discovery of dengue virus entry inhibitors.

Curr Med Chem 2021 May 21. Epub 2021 May 21.

Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz, 2390, Ciudad Autónoma de Buenos Aires, Argentina.

Dengue virus (DENV) disease has become one of the major challenges in public health. Currently, there is no antiviral treatment for this infection. Since human transmission occurs via mosquitoes of the Aedes genus, most efforts have been focused on controlling this vector. Read More

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Second GHEP-ISFG exercise for DVI: "DNA-led" victims' identification in a simulated air crash.

Forensic Sci Int Genet 2021 Jul 19;53:102527. Epub 2021 May 19.

PRICAI - Fundación Favaloro, CABA, Argentina. Electronic address:

The Spanish and Portuguese-Speaking Working Group of the International Society for Forensic Genetics (GHEP-ISFG) has organized a second collaborative exercise on a simulated case of Disaster Victim Identification (DVI), with the participation of eighteen laboratories. The exercise focused on the analysis of a simulated plane crash case of medium-size resulting in 66 victims with varying degrees of fragmentation of the bodies (with commingled remains). As an additional difficulty, this second exercise included 21 related victims belonging to 6 families among the 66 missings to be identified. Read More

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[Septal hematoma: Report of two pediatric cases].

Arch Argent Pediatr 2021 06;119(3):e261-e263

Residencia de Otorrinolaringología Infantil. Hospital General de Niños "Pedro de Elizalde", Ciudad Autónoma de Buenos Aires, Argentina.

Hematomas and septal abscesses are an emergency in rhinology and require early surgical treatment due to the risk of infectious, functional, and aesthetic complications. They generally occur as a consequence of nasal trauma, although they have also been described in relation to other triggers. Accumulation of blood or pus between the mucoperichondrium and septal cartilage, causes avascular necrosis injury to the cartilage with cartilage destruction. Read More

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Global data on earthworm abundance, biomass, diversity and corresponding environmental properties.

Sci Data 2021 05 21;8(1):136. Epub 2021 May 21.

Forest Sciences and Forest Ecology, University of Göttingen, Büsgenweg 1, Göttingen, Germany.

Earthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provided directly by authors, were collated with information on site locations, including coordinates, habitat cover, and soil properties. Read More

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Level of physical activity and barriers to exercise in adults with type 2 diabetes.

AIMS Public Health 2021 9;8(2):229-239. Epub 2021 Mar 9.

Department of Famacology, CEMIC University, CP 1431, Buenos Aires, Argentina.

Introduction: Physical activity (PA) is an important element in type 2 diabetes mellitus (T2DM) management. The aims of this study were to assess the percentage of adults with T2DM who perform PA, according to the intensity level and to describe barriers to exercise and the association between metabolic control and other clinical variables.

Methods: Multicenter, observational, cross-sectional study. Read More

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Genomic and temporal analyses of in southern Brazil.

Microb Genom 2021 May;7(5)

Department of Veterinary Medicine, University of Cambridge, Cambridge, UK.

is a causal agent of bovine tuberculosis (bTB), one of the most important diseases currently facing the cattle industry worldwide. Tracing the source of infections of livestock is an important tool for understanding the epidemiology of bTB and defining control/eradication strategies. In this study, whole genome sequencing (WGS) of 74 . Read More

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Social Distancing and Economic Crisis During COVID-19 Pandemic Reduced Cancer Control in Latin America and Will Result in Increased Late-Stage Diagnoses and Expense.

JCO Glob Oncol 2021 05;7:694-703


Since December 2019, the world has been mired in an infectious pandemic that has displaced other health priorities for 21st century populations. Concerned about this situation, Latin American experts on cancer decided to evaluate the impact of the pandemic on cancer control in the region. The analysis was based on information obtained from public sources and scientific publications and included the characteristics of the health care and cancer control prior to the pandemic, the COVID-19 pandemic and measures implemented by the governments of the region, and the regional impact of the pandemic on cancer control together with the costs of cancer care and possible impact of the pandemic on cancer expense. Read More

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Stress-induced expression of IPT gene in transgenic wheat reduces grain yield penalty under drought.

J Genet Eng Biotechnol 2021 May 10;19(1):67. Epub 2021 May 10.

Instituto de Genética, "Edwald A. Favret", Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina.

Background: The heterologous expression of isopentenyl transferase (IPT) under the transcriptional control of the senescence-associated receptor-like kinase (SARK) promoter delayed cellular senescence and, through it, increased drought tolerance in plants. To evaluate the effect of pSARK::IPT expression in bread wheat, six independent transgenic events were obtained through the biolistic method and evaluated transgene expression, phenology, grain yield and physiological biomass components in plants grown under both drought and well-irrigating conditions. Experiments were performed at different levels: (i) pots and (ii) microplots inside a biosafety greenhouse, as well as under (iii) field conditions. Read More

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First Report of Causing Anthracnose of Guava () in Mexico.

Plant Dis 2021 May 10. Epub 2021 May 10.

Centro de Investigación en Alimentación y Desarrollo, Coordinación Culiacán, Carretera El Dorado Km 5.5, Campo el Diez, Culiacán, Sinaloa, Mexico, 80110;

Guava ( L.) is a small tree belonging to the Myrtaceae family and it is distributed worldwide in the tropical and subtropical areas. During the summer of 2019, symptoms of fruit anthracnose were observed on approx. Read More

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Prospective inference of bioprocess cell viability through chemometric modeling of fluorescence multiway data.

Biotechnol Prog 2021 May 10:e3173. Epub 2021 May 10.

Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina.

In this investigation, the fermentation step of a standard mammalian cell-based industrial bioprocess for the production of a therapeutic protein was studied, with particular emphasis on the evolution of cell viability. This parameter constitutes one of the critical variables for bioprocess monitoring since it can affect downstream operations and the quality of the final product. In addition, when the cells experiment an unpredictable drop in viability, the assessment of this variable through classic off-line methods may not provide information sufficiently in advance to take corrective actions. Read More

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Building brain capital.

Neuron 2021 05;109(9):1430-1432

Organisation for Economic Co-operation and Development (OECD), Paris, France.

Brains are indispensable drivers of human progress. Why not invest more heavily in them? We seek to place Brain Capital at the center of a new narrative to fuel economic and societal recovery and resilience. Read More

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Renal Impairment and Risk of Acute Stroke: The INTERSTROKE Study.

Neuroepidemiology 2021 5;55(3):206-215. Epub 2021 May 5.

Estudios Clinicos Latinoamerica, Rosario, Argentina.

Background: Previous studies reported an association of renal impairment with stroke, but there are uncertainties underpinning this association.

Aims: We explored if the association is explained by shared risk factors or is independent and whether there are regional or stroke subtype variations.

Methods: INTERSTROKE is a case-control study and the largest international study of risk factors for first acute stroke, completed in 27 countries. Read More

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Stomatal micromorphology in a complex of Mimosa section Mimosa (Fabaceae).

Protoplasma 2021 May 5. Epub 2021 May 5.

Instituto de Recursos Biológicos, Instituto Nacional de Tecnología Agropecuaria, N. Repetto y Los Reseros S/N, 1686, Hurlingham, Buenos Aires, Argentina.

The genus Mimosa Linnaeus (Leguminosae) comprises more than 530 species, being one of the most diversified genera in the family. A vast morphologic variability has been described at all infrageneric levels. Considering stomata description, a very low proportion of species have been studied in the genus, and the description was limited to stomata types, but not to variation in the disposition of subsidiary cells. Read More

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Erratum to "Improved fermentation strategies in a bioreactor for enhancing poly(3-hydroxybutyrate) (PHB) production by wild type Cupriavidus necator from fructose" [Heliyon 7 (1) (January 2021) Article e05979].

Heliyon 2021 Apr 17;7(4):e06716. Epub 2021 Apr 17.

School of Science and Technology, National University of San Martín (UNSAM), Av. 25 de mayo 1147, B1650HMK, San Martín, Buenos Aires, Argentina.

[This corrects the article DOI: 10.1016/j.heliyon. Read More

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Clinical disease incidence during early lactation, risk factors and association with fertility and culling in grazing dairy cows in Uruguay.

Prev Vet Med 2021 Apr 18;191:105359. Epub 2021 Apr 18.

Faculty of Agronomy and Veterinary Medicine, National University of Rio Cuarto, PC 5800, Argentina; Institute for Agroindustrial Development and Health (IDAS), UNRC-CONICET, National Route 36 km 601, Río Cuarto 5800, Córdoba, Argentina.

This paper aims to describe clinical disease incidence in early lactation and explore its association with fertility and culling in 13 commercial grazing dairy herds in Uruguay. Seven farms with less than 250 dairy cows considered small herds (SH) with a herd size average ± (SD) of 144 ± (56) cows and six farms with more than 500 cows considered large herds (LH) with a herd size average ± (SD) of 830 ± (239) cows were selected. Herd managers recorded health events during the first 90 days in milk in 5375 Holstein dairy cows [24. Read More

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Looking at the past to infer into the future: Thermal traits track environmental change in Liolaemidae.

Evolution 2021 May 3. Epub 2021 May 3.

Department of Biological Sciences, 131 Life Sciences Building, Ohio University, Athens, OH, 45701, USA.

The diversity of habitats generated by the Andes uplift resulted a mosaic of heterogeneous environments in South America for species to evolve a variety of ecological and physiological specializations. Species in the lizard family Liolaemidae occupy a myriad of habitats in the Andes. Here, we analyze the tempo and mode of evolution in the thermal biology of liolaemids. Read More

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Effect of cat seminal plasma and purified llama ovulation-inducing factor (β-NGF) on ovarian function in queens.

Theriogenology 2021 Jul 21;169:29-35. Epub 2021 Apr 21.

Instituto de Investigaciones en Reproduccion Animal (INIRA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Calle 60 y 118, La Plata, B1900AVW, Buenos Aires, Argentina.

The present study aimed to determine the effect of cat seminal plasma and purified llama ovulation-inducing factor (β-NGF) on ovarian activity in queens. Queens (n = 6) were used for all the treatments in a crossover design with an interval time between treatments of three interestrus intervals. Forty-eight hours after the detection of an estrus vaginal cytology, queens were given cat seminal plasma (subcutaneous or intramuscular), purified llama ovulation-inducing factor (15 or 35 μg), hCG (75 UI), saline, or were mated with a male. Read More

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Increased in vitro Anti-HIV Activity of Caffeinium-Functionalized Polyoxometalates.

ChemMedChem 2021 Apr 28. Epub 2021 Apr 28.

Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.

Polyoxometalates (POMs), molecular metal oxide anions, are inorganic clusters with promising antiviral activity. Herein we report increased anti-HIV-1 activity of a POM when electrostatically combined with organic counter-cations. To this end, Keggin-type cerium tungstate POMs have been combined with organic methyl-caffeinium (Caf) cations, and their cytotoxicity, antiviral activity and mode of action have been studied. Read More

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Common Femoral Artery Stenting: Computed Tomography Angiography Based Long-Term Patency.

Vasc Endovascular Surg 2021 Apr 28:15385744211010447. Epub 2021 Apr 28.

Department of Endovascular Therapy, 37533Hospiten Hospital Group, Santa Cruz de Tenerife, Canary Island, Spain.

Background: Despite considerable morbid-mortality rates, common femoral endarterectomy is still considered the gold standard for atherosclerotic common femoral artery (CFA) disease. The aim of this study was to demonstrate computed tomography angiography based long-term patency after CFA stent placement and to analyze associated risk factors for restenosis.

Methods: A retrospective and observational study was carried out in consecutive patients treated with endovascular stent placement in CFA lesions. Read More

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