6,190 results match your criteria Chilean Journal Of Agricultural Research[Journal]


Consumption of non-nutritive sweeteners by pre-schoolers of the food and environment Chilean cohort (FECHIC) before the implementation of the Chilean food labelling and advertising law.

Nutr J 2020 Jul 10;19(1):69. Epub 2020 Jul 10.

Institute of Nutrition and Food Technology, University of Chile, Av. El Líbano 5524, Macul, Casilla 138-11, Santiago, Chile.

Background: Consumption of non-nutritive sweeteners (NNS) is becoming increasingly more frequent, particularly in the context of obesity prevention policies. The aim of this study was to describe the consumption of NNS in an ongoing cohort of pre-schoolers (4-6-year-old) before the implementation of the Chilean Food Labelling and Advertising Law, identify sociodemographic and anthropometric characteristics associated with their consumption, and describe the main dietary sources of each NNS sub-type.

Methods: In 959 low-medium income pre-schoolers from the Food and Environment Chilean Cohort (FECHIC), dietary data from a single 24-h recall was linked to NNS content information obtained from packaged foods (n = 12,233). Read More

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http://dx.doi.org/10.1186/s12937-020-00583-3DOI Listing

Bioactive Polyphenols from Southern Chile Seaweed as Inhibitors of Enzymes for Starch Digestion.

Mar Drugs 2020 Jul 8;18(7). Epub 2020 Jul 8.

Centro FONDAP de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia 5090000, Chile.

The increment of non-communicable chronic diseases is a constant concern worldwide, with type-2 diabetes mellitus being one of the most common illnesses. A mechanism to avoid diabetes-related hyperglycemia is to reduce food digestion/absorption by using anti-enzymatic (functional) ingredients. This research explored the potential of six common Chilean seaweeds to obtain anti-hyperglycemic polyphenol extracts, based on their capacity to inhibit key enzymes related with starch digestion. Read More

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http://dx.doi.org/10.3390/md18070353DOI Listing

Chemical Fingerprinting, Isolation and Characterization of Polyphenol Compounds from (Phil.) I.M. Johnst and Its Endothelium-Dependent Vascular Relaxation Effect in Rat Aorta.

Molecules 2020 Jul 8;25(14). Epub 2020 Jul 8.

Laboratorio de Fisiología Experimental (EPhyL), Instituto Antofagasta (IA), Universidad de Antofagasta, Antofagasta 1240000, Chile.

is an endemic species of the northern coast of Chile and is used as folk medicine. The polyphenolic composition of the methanolic and aqueous extract of the endemic Chilean species was investigated using Ultrahigh-Performance Liquid Chromatography, Heated Electrospray Ionization and Mass Spectrometry (UHPLC-Orbitrap-HESI-MS). Fifty-three compounds were detected, mainly derivatives of benzoic acid, flavonoids, and some phenolic acids. Read More

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http://dx.doi.org/10.3390/molecules25143105DOI Listing

Home Language and Literacy Environments and Early Literacy Trajectories of Low-Socioeconomic Status Chilean Children.

Child Dev 2020 Jul 10. Epub 2020 Jul 10.

Pontificia Universidad Católica de Chile.

This study used Latent Class Analysis to identify groups of children exposed to similar Home Language and Literacy Environments (HLLE) and explored whether belonging to a given HLLE group was related to children's language and early literacy growth from prekindergarten to kindergarten. Participants were 1,425 Chilean mothers and their children (M  = 52.52 months at baseline) from low-socioeconomic status households. Read More

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http://dx.doi.org/10.1111/cdev.13382DOI Listing

MycoNews 2019: editorials, news, reports, awards, personalia, book news, and correspondence.

IMA Fungus 2019 30;10:23. Epub 2019 Dec 30.

Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew, Surrey, TW9 3DS UK.

This first instalment of MycoNews includes: an Editorial "Do we need more governance in taxonomy?"; reports of mycological meetings in Poland (18th Congress of European Mycologists), Iran (4th Iranian Mycological Congress) and Chile (1st Chilean Meeting of Mycology (I Encuentro Chileno de Micología); an award to Lynne Boddy; birthday greetings to Gro Gulden, Marja Härkönen, Gregoire Hennebert, Hannes Hertel, and Junta Sugiyama; tributes to the passing of Francisco Calogne, Stanley J. Hughes, and Jos Wessels; news of four mycological books and one on-line work published in 2019; and a special tribute to Stanley Hughes by Kris Pirozynski. Read More

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http://dx.doi.org/10.1186/s43008-019-0024-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7325673PMC
December 2019

Per oral endoscopic myotomy (POEM) in pediatric patients with esophageal achalasia: First Latin-American experience.

J Pediatr Surg 2020 Jun 13. Epub 2020 Jun 13.

Digestive Surgery Department, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.

Background: Achalasia is the most common primary motor disorder of the esophagus, but its incidence in pediatric patients is low. Laparoscopic Heller myotomy (LHM) is the current surgical standard of care treatment. Per-oral endoscopic myotomy (POEM) has emerged as a safe and effective therapeutic alternative in adult patients. Read More

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http://dx.doi.org/10.1016/j.jpedsurg.2020.06.007DOI Listing

dSTORM microscopy evidences in HeLa cells clustered and scattered γH2AX nanofoci sensitive to ATM, DNA-PK, and ATR kinase inhibitors.

Mol Cell Biochem 2020 Jul 7. Epub 2020 Jul 7.

Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.

In response to DNA double-strand breaks (DSB), histone H2AX is phosphorylated around the lesion by a feed forward signal amplification loop, originating γH2AX foci detectable by immunofluorescence and confocal microscopy as elliptical areas of uniform intensity. We exploited the significant increase in resolution (~ × 10) provided by single-molecule localization microscopy (SMLM) to investigate at nanometer scale the distribution of γH2AX signals either endogenous (controls) or induced by the radiomimetic bleomycin (BLEO) in HeLa cells. In both conditions, clustered substructures (nanofoci) confined to γH2AX foci and scattered nanofoci throughout the remnant nuclear area were detected. Read More

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http://dx.doi.org/10.1007/s11010-020-03809-4DOI Listing

Technical-Tactical Behaviors Analysis of Male and Female Judo Cadets' Combats.

Front Psychol 2020 19;11:1389. Epub 2020 Jun 19.

Laboratory of Physiological and Motor Analysis in Health and Performance of the Physical Education Department, Federal University of Juiz de Fora, Governador Valadares, Brazil.

This brief research report showed technical-tactical behaviors of male and female judo cadets during combats, comparing the frequency and time of judo combat actions, techniques and penalties. The data was composed for 3,240 sequential technical-tactical behavior analysis from 108 female and 300 male cadet combats recorded of public judo championships. Combat, standing combat moments, approach action, gripping action, attack, groundwork actions and pause moment were observed and determinant technical-tactical behaviors (frequencies of actions, penalties and type of attacks) analysis were done with FRAMI software, followed by Mann-Whitney and Student's -test, ≤ 0. Read More

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http://dx.doi.org/10.3389/fpsyg.2020.01389DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7317020PMC

Polypharmacy Is Associated with Frailty, Nutritional Risk and Chronic Disease in Chilean Older Adults: Remarks from PIEI-ES Study.

Clin Interv Aging 2020 29;15:1013-1022. Epub 2020 Jun 29.

Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Interdisciplinary Center on Aging, Universidad de Talca, Talca, Chile.

Aim: To analyze the relationship between polypharmacy and variables as frailty and other chronic comorbidities in Chilean older adults.

Design: Cross-sectional study.

Participants: One thousand two hundred and five older adults aged 65 and older. Read More

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http://dx.doi.org/10.2147/CIA.S247444DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7334011PMC

Characterization of Chilean patients with sporadic colorectal cancer according to the three main carcinogenic pathways: Microsatellite instability, CpG island methylator phenotype and Chromosomal instability.

Tumour Biol 2020 Jul;42(7):1010428320938492

Coloproctology Unit, Clínica Las Condes, Santiago, Chile.

Molecular classification of colorectal cancer is difficult to implement in clinical settings where hundreds of genes are involved, and resources are limited. This study aims to characterize the molecular subtypes of patients with sporadic colorectal cancer based on the three main carcinogenic pathways microsatellite instability (MSI), CpG island methylator phenotype (CIMP), and chromosomal instability (CIN) in a Chilean population. Although several reports have characterized colorectal cancer, most do not represent Latin-American populations. Read More

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http://dx.doi.org/10.1177/1010428320938492DOI Listing

Pediatric Arterial Ischemic Stroke: Clinical Presentation, Risk Factors, and Pediatric NIH Stroke Scale in a Series of Chilean Patients.

Cell Med 2018 29;10:2155179018760330. Epub 2018 May 29.

Department of Pediatric Neurology and Psychiatry, San Borja Arriarán Hospital, University of Chile, Santiago, Región Metropolitana, Chile.

Stroke is an important cause of morbidity and mortality in children. Clinical presentation is diverse, and multiple risk factors have been described. The aim of this retrospective study is to describe the clinical presentation, risk factors, and the Pediatric National Institute of Health Stroke Scale (PedNIHSS) in a series of pediatric Chilean patients with the diagnosis of arterial ischemic stroke (AIS). Read More

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http://dx.doi.org/10.1177/2155179018760330DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6172992PMC

Weight Stigma, Chronic Stress, Unhealthy Diet, and Obesity in Chilean Adults.

Int J Behav Med 2020 Jul 6. Epub 2020 Jul 6.

Department of Psychology, Universidad de La Frontera, 0830 Montevideo, Temuco, Chile.

Background: Obesity is highly prevalent around the world, including in Chile. Although various psychological factors have been previously associated with obesity, there has been less attention on the role of weight stigma as a determinant of obesity in Chile. Therefore, the primary aim of this study was to examine the direct effect of weight stigma on obesity and determine whether chronic stress and unhealthy diet mediate the relationship between weight stigma and obesity. Read More

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http://dx.doi.org/10.1007/s12529-020-09917-1DOI Listing

Overuse of Non-caloric Sweeteners in Foods and Beverages in Chile: A Threat to Consumers' Free Choice?

Front Nutr 2020 17;7:68. Epub 2020 Jun 17.

Department of Nutrition, Faculty of Medicine, University of Chile, Santiago, Chile.

The prevalence of obesity among Chilean adults and children is one of the highest worldwide. To fight the constant increase of non-communicable diseases and the growing sales of sugar-sweetened beverages, the Chilean government recently enacted a new Law of Food Labeling and Advertising imposing the application of front-of-package warning labels in foodstuffs whose composition exceeds limits for critical nutrients including sugar. Accordingly, food companies have been reformulating their products, incorporating non-caloric sweeteners (NCSs) in partial or total replacement of sucrose. Read More

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http://dx.doi.org/10.3389/fnut.2020.00068DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7311776PMC

Pest categorisation of potato virus Y (non-EU isolates).

EFSA J 2020 Jan 9;18(1):e05938. Epub 2020 Jan 9.

Following a request from the EU Commission, the Panel on Plant Health has addressed the pest categorisation of non-EU isolates of potato virus Y (PVY). The information currently available on geographical distribution, biology, epidemiology, potential entry pathways and potential additional impact of non-EU isolates of PVY, has been evaluated with regard to the criteria to qualify as a potential Union quarantine pest. Because non-EU isolates of PVY are absent from the EU, they do not meet one of the requirements to be regulated as a regulated non-quarantine pest (RNQP) (presence in the EU); as a consequence, the Panel decided not to evaluate the other RNQP criteria for these isolates. Read More

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http://dx.doi.org/10.2903/j.efsa.2020.5938DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7008826PMC
January 2020

A Study on Congruency Effects and Numerical Distance in Fraction Comparison by Expert Undergraduate Students.

Front Psychol 2020 18;11:1190. Epub 2020 Jun 18.

Institute of Educational Sciences (ICEd), Universidad de O'Higgins, Rancagua, Chile.

School mathematics comprises a diversity of concepts whose cognitive complexity is still poorly understood, a chief example being fractions. These are typically taught in middle school, but many students fail to master them, and misconceptions frequently persist into adulthood. In this study, we investigate fraction comparison, a task that taps into both conceptual and procedural knowledge of fractions, by looking at performance of highly mathematically skilled young adults. Read More

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http://dx.doi.org/10.3389/fpsyg.2020.01190DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315778PMC

Associations Among Household Chaos, School Belonging and Risk Behaviors in Adolescents.

J Prim Prev 2020 Jul 4. Epub 2020 Jul 4.

Division of Child Development and Community Health, Department of Pediatrics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0927, USA.

We examined the associations between adolescent risk behaviors and household chaos, and whether associations varied by adolescents' sense of school belonging. We collected data from 801 Chilean adolescents from working-class families (M age 16.2 years). Read More

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http://dx.doi.org/10.1007/s10935-020-00592-2DOI Listing

Optimal cut-off points for waist circumference in the definition of metabolic syndrome in Chile.

Public Health Nutr 2020 Jul 3:1-6. Epub 2020 Jul 3.

Department of European and Mediterranean Cultures: Architecture, Environment and Cultural Heritage (DICEM), University of Basilicata, Matera, Italy.

Objective: To identify sex-specific cut-off points for waist circumference (WC) in the definition of metabolic syndrome (MetS) for the Chilean adult population.

Design: MetS was defined as the presence of at least two out of four of the following criteria: TAG ≥1·7 mmol/l; HDL-cholesterol: <1·3 mmol/l in women and <1·0 mmol/l in men; systolic blood pressure ≥130 mmHg and/or diastolic blood pressure ≥85 mmHg; and fasting glucose ≥ 5·6 mmol/l or current treatment for diabetes. The receiver operating characteristics curve and the AUC were computed to derive the specificity and sensitivity using bootstrapping (10 000 iterations restricted to have at least between 40 and 60 % of the original population). Read More

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http://dx.doi.org/10.1017/S1368980020001469DOI Listing

Palliative care physicians and palliative radiotherapy, knowledge and barriers for referring: a cross-sectional study.

J Pain Symptom Manage 2020 Jun 29. Epub 2020 Jun 29.

Instituto de Literatura y Ciencias del Lenguaje. Pontificia Universidad Católica de Valparaiso, Valparaiso. Chile.

Context: Palliative radiotherapy is effective in the management of symptoms resulting from advanced cancer. However, it remains underutilised. In developed countries, many factors have been linked to this phenomenon but data in developing and low income countries, particularly in Latin America, are lacking. Read More

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http://dx.doi.org/10.1016/j.jpainsymman.2020.06.021DOI Listing

Dairy Calf Welfare and Factors Associated with Diarrhea and Respiratory Disease Among Chilean Dairy Farms.

Animals (Basel) 2020 Jun 29;10(7). Epub 2020 Jun 29.

Instituto de Ciencia Animal, Facultad de Ciencias Veterinarias, OIE Collaborating Centre for Animal Welfare and Livestock Production Systems, Universidad Austral de Chile, Valdivia 5090000, Chile.

This study aimed to describe management practices that may compromise the welfare of unweaned dairy calves on 29 dairy farms in Chile, and identify factors associated with diarrhea and respiratory disease (n = 700 calves). Evaluations were divided into protocol-, facility-, and animal-based measurements. Calf diarrhea and respiratory disease data were analyzed using logistic regression models. Read More

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http://dx.doi.org/10.3390/ani10071115DOI Listing

Human toxicosis caused by the tick Ornithodoros spheniscus in a Chilean national park.

Travel Med Infect Dis 2020 Jun 28:101811. Epub 2020 Jun 28.

Laboratorio de Parásitos y Enfermedades de Fauna Silvestre, Departamento de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad de Concepción, Av. Vicente Méndez 595, Chillán, Chile. Electronic address:

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http://dx.doi.org/10.1016/j.tmaid.2020.101811DOI Listing

Copro-prevalence of Fasciola hepatica in Chilean breed horses in the province of Concepción, Chile.

Rev Bras Parasitol Vet 2020 26;29(2):e019019. Epub 2020 Jun 26.

Facultad de Ciencias Veterinarias, Universidad de Concepción, Chillán, Chile.

The aim of this research was to assess the copro-prevalence of Fasciola hepatica in owned Chilean breed horses (Equus caballus) residing in the province of Concepción, Chile. The study was carried out throughout October 2017. Samples were taken from all (100%) Chilean breed horse (124 specimens; 45 females and 79 males, aged between 7 months and 24 years old) from the Concepción province. Read More

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http://dx.doi.org/10.1590/S1984-29612020020DOI Listing

Associated to Blossom Blight in Chile.

Plant Dis 2020 Jun 30:PDIS09192055SC. Epub 2020 Jun 30.

Departamento de Sanidad Vegetal, Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile.

Table grapes are highly susceptible to infections during the bloom period. After reaching the flower development stage, remains quiescent until berry ripening or gives rise to blossom blight under specific climate conditions. A research study was conducted on the Chilean Central Valley during the 2018-2019 growing season. Read More

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http://dx.doi.org/10.1094/PDIS-09-19-2055-SCDOI Listing

First report of porcine respirovirus 1 in South America.

Vet Microbiol 2020 Jul 17;246:108726. Epub 2020 May 17.

Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile. Electronic address:

Porcine respirovirus 1 (PRV1) is an emerging virus in pigs that has been previously described in the USA and China. There are no reports of its presence in the rest of the world. The objective of this study was to determine the occurrence of PRV1 in Chile and to determine its phylogeny. Read More

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http://dx.doi.org/10.1016/j.vetmic.2020.108726DOI Listing

Flow studies on human GPVI-deficient blood under coagulating and noncoagulating conditions.

Blood Adv 2020 Jul;4(13):2953-2961

Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.

The role of glycoprotein VI (GPVI) in platelets was investigated in 3 families bearing an insertion within the GP6 gene that introduces a premature stop codon prior to the transmembrane domain, leading to expression of a truncated protein in the cytoplasm devoid of the transmembrane region. Western blotting and flow cytometry of GP6hom (homozygous) platelets confirmed loss of the full protein. The level of the Fc receptor γ-chain, which associates with GPVI in the membrane, was partially reduced, but expression of other receptors and signaling proteins was not altered. Read More

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http://dx.doi.org/10.1182/bloodadvances.2020001761DOI Listing

Incidence, risk factors and case fatality rate for hip fracture in Chile: A cross-sectional study based on 2017 national registries.

Medwave 2020 Jun 23;20(5):e7939. Epub 2020 Jun 23.

Departamento Ortopedia y Traumatología, Hospital Clínico Universidad de Chile, Santiago, Chile; Departamento Ortopedia y Traumatología, Hospital San José, Santiago, Chile. ORCID: 0000-0001-9674-0553.

Purpose: To describe the incidence of hip fracture in Chile during 2017, identify risk factors for in-hospital mortality, and estimate annual case fatality rate.

Method: The study design was cross-sectional and analytical. We obtained the registries of all patients from the Chilean Ministry of Health who were treated for hip fracture between January 1, 2017, and December 31, 2017. Read More

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http://dx.doi.org/10.5867/medwave.2020.05.7939DOI Listing

Psychometric Study of the Scale for the Assessment of Developmental Assets in the Neighborhood in a Sample of Chilean Adolescents.

Front Psychol 2020 12;11:972. Epub 2020 Jun 12.

Department of Psychology, Temuco Catholic University, Temuco, Chile.

The Scale for the Assessment of Developmental Assets in the Neighborhood (SADAN) has shown acceptable psychometric properties for use in Spain and Chile. However, the original factor structure of five correlated factors and a second-order factor is not yet entirely clear. This study aimed to evaluate the scale's psychometric properties of reliability and validity in a sample of Chilean adolescents. Read More

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http://dx.doi.org/10.3389/fpsyg.2020.00972DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7304306PMC

Partitioning of copper at the confluences of Andean rivers.

Chemosphere 2020 Jun 6;259:127318. Epub 2020 Jun 6.

Pontificia Universidad Católica de Chile, Departamento de Ingeniería Hidráulica y Ambiental, Av. Vicuña Mackenna, 4860, Macul, Santiago, Chile; Centro de Desarrollo Urbano Sustentable CEDEUS, Pontificia Universidad Católica de Chile, El Comendador, 1916, Providencia, Santiago, Chile. Electronic address:

The fate of copper (Cu) in rivers impacted by acid drainage remains poorly studied in waters with comparatively low Al and Fe concentrations. This work addresses the role of confluences in controlling the physical and chemical fate of Cu in a system with total molar ratio Cu/Al > 0.2 and Cu/Fe > 0. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2020.127318DOI Listing

Non-dystrophic myotonia Chilean cohort with predominance of the SCN4A Gly1306Glu variant.

Neuromuscul Disord 2020 May 19. Epub 2020 May 19.

Unité de Cardiogénétique et Myogénétique, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique Hôpitaux de Paris, 47-83 Boulevard de l'Hôpital, Paris 75013, France.

Non-dystrophic myotonias are a group of rare neuromuscular diseases linked to SCN4A or CLCN1. Among the subtypes, myotonia permanens, associated with the Gly1306Glu variant of SCN4A, is a relatively less frequent but more severe form. Most reports of non-dystrophic myotonias describe European populations. Read More

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http://dx.doi.org/10.1016/j.nmd.2020.04.006DOI Listing

No benefit of flat head positioning in early moderate-severe acute ischaemic stroke: a HeadPoST study subgroup analysis.

Stroke Vasc Neurol 2020 Jun 25. Epub 2020 Jun 25.

The George Institute for Global Health, University of New South Wales, Sidney, New South Wales, Australia.

Background: Although the Head Positioning in acute Stroke Trial (HeadPoST) showed no effect of the flat head position (FP; vs sitting up head position (SUP)) on functional outcome, we hypothesised that it could still offer benefits if commenced early in those with acute ischaemic stroke (AIS) of at least moderate severity.

Methods: Subgroup analysis of HeadPoST in participants with National Institutes of Health Stroke Scale (NIHSS) scores ≥7, ≥10 and ≥14, randomised to FP or SUP <4.5 hours of AIS onset on functional outcomes defined by a shift in scores on the modified Rankin scale (mRS) and death/disability (mRS scores 3-6), and any cardiovascular serious adverse event. Read More

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http://dx.doi.org/10.1136/svn-2020-000387DOI Listing

Prevalence and phylogeny of Chlamydiae and hemotropic mycoplasma species in captive and free-living bats.

BMC Microbiol 2020 Jun 26;20(1):182. Epub 2020 Jun 26.

Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

Background: Bats are hosts for a variety of microorganisms, however, little is known about the presence of Chlamydiales and hemotropic mycoplasmas. This study investigated 475 captive and free-living bats from Switzerland, Germany, and Costa Rica for Chlamydiales and hemotropic mycoplasmas by PCR to determine the prevalence and phylogeny of these organisms.

Results: Screening for Chlamydiales resulted in a total prevalence of 31. Read More

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http://dx.doi.org/10.1186/s12866-020-01872-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7318495PMC

Physical Activity Levels of Chilean Children in a National School Intervention Programme. A Quasi-Experimental Study.

Int J Environ Res Public Health 2020 Jun 23;17(12). Epub 2020 Jun 23.

GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cadiz, 11003 Cadiz, Spain.

. Recess is a great opportunity to interrupt sedentary behaviour and increase moderate-to-vigorous physical activity (MVPA) in schoolchildren. This quasi-experimental study aimed to compare the levels of physical activity (PA) during the school day of children in a school intervention programme vs. Read More

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http://dx.doi.org/10.3390/ijerph17124529DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7345723PMC

Edition of Prostaglandin E2 Receptors EP2 and EP4 by CRISPR/Cas9 Technology in Equine Adipose Mesenchymal Stem Cells.

Animals (Basel) 2020 Jun 23;10(6). Epub 2020 Jun 23.

Department of Animal Science, Faculty of Veterinary Science, Universidad de Concepción, Campus Chillan, Chillán 3780000, Chile.

In mesenchymal stem cells (MSCs), it has been reported that prostaglandin E2 (PGE2) stimulation of EP2 and EP4 receptors triggers processes such as migration, self-renewal, survival, and proliferation, and their activation is involved in homing. The aim of this work was to establish a genetically modified adipose (aMSC) model in which receptor genes EP2 and EP4 were edited separately using the CRISPR/Cas9 system. After edition, the genes were evaluated as to if the expression of MSC surface markers was affected, as well as the migration capacity in vitro of the generated cells. Read More

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http://dx.doi.org/10.3390/ani10061078DOI Listing

Prices, alcohol use initiation and heavy episodic drinking among Chilean youth.

Addiction 2020 Jun 22. Epub 2020 Jun 22.

Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL, United States.

Aims: To examine the association between alcohol prices and age of initiation of alcohol use, and the association between age of alcohol use initiation and heavy episodic drinking (HED) among adolescents in Chile.

Design: We estimated discrete-time hazard models using retrospective data and generalized ordered probit models with repeated cross-sectional data.

Setting: Chile. Read More

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http://dx.doi.org/10.1111/add.15167DOI Listing

Microbial Communities Associated with Farmed : Detection in Water Prior to Bacterial Outbreaks Using Culturing and High-Throughput Sequencing.

Animals (Basel) 2020 Jun 18;10(6). Epub 2020 Jun 18.

Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar 2571015, Chile.

The red conger eel (, Guichenot) is a native species included in the Chilean Aquaculture Diversification Program due to high commercial demand. In the context of intensified farming, prior reports link two disease outbreaks with emerging pathogens in the and genera. However, the roles remain unclear for the bacterial community and each specific bacterium is associated with the rearing environment for healthy specimens. Read More

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http://dx.doi.org/10.3390/ani10061055DOI Listing

Species vulnerability under climate change: Study of two sea urchins at their distribution margin.

Sci Total Environ 2020 Aug 21;728:138850. Epub 2020 Apr 21.

Scientific Department, Chilean Antarctic Institute, Plaza Muñoz Gamero Punta Arenas, Chile.

In order to develop powerful predictions on the impact of climate change on marine organisms, it is critical to understand how abiotic drivers such as temperature can directly and indirectly affect marine organisms. Here, we evaluated and compared the physiological vulnerability of the leading-edge populations of two species of sea urchins Loxechinus albus and Pseudechinus magellanicus in response to predicted ocean warming and food limitation. After exposing sea urchins to a 60-day experimental period to contrasting temperature (1 °C, 7 °C and 14 °C corresponding respectively to the actual average summer temperature in Antarctica, the control treatment temperature and the predicted future temperature in the Strait of Magellan) and diet levels (ad libitum or food limitation), sea urchin stress tolerance was assessed. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2020.138850DOI Listing

Identifying hotspots of cardiometabolic outcomes based on a Bayesian approach: The example of Chile.

PLoS One 2020 22;15(6):e0235009. Epub 2020 Jun 22.

Department of Public Health Sciences, Medical University of South Carolina, South Carolina, Charleston, United States of America.

Background: There is a need to identify priority zones for cardiometabolic prevention. Disease mapping in countries with high heterogeneity in the geographic distribution of the population is challenging. Our goal was to map the cardiometabolic health and identify hotspots of disease using data from a national health survey. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0235009PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7307745PMC

Behavioural Laterality in two species of flamingos: greater flamingos and Chilean flamingos.

Laterality 2020 Jun 22:1-21. Epub 2020 Jun 22.

Centre for Mind/Brain Sciences, University of Trento, Rovereto, Italy.

Many studies have highlighted evidence of lateralized behaviours in vertebrates and invertebrates, indicating that cerebral lateralization might not be uniquely human. Flamingos, as highly social species, might represent an interesting model in the study of lateralization, as this trait appears to be useful in gregarious animals. This study aims to investigate the presence of lateralized behaviours in zoo flamingos. Read More

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http://dx.doi.org/10.1080/1357650X.2020.1781877DOI Listing

Serological diversity in Flavobacterium psychrophilum: A critical update using isolates retrieved from Chilean salmon farms.

J Fish Dis 2020 Jun 21. Epub 2020 Jun 21.

Interdisciplinary Center for Aquaculture Research (INCAR), Viña del Mar, Chile.

Chile is currently the second largest producer of farmed salmon worldwide, but Flavobacterium psychrophilum, as one of the most detrimental pathogens, is responsible for major losses during the freshwater culturing step in salmonid fish farms. An antigenic study conducted 10 years ago reported four serological groups using 20 F. psychrophilum Chilean strains. Read More

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http://dx.doi.org/10.1111/jfd.13199DOI Listing

Biotransport of persistent organic pollutants in the southern Hemisphere by invasive Chinook salmon (Oncorhynchus tshawytscha) in the rivers of northern Chilean Patagonia, a UNESCO biosphere reserve.

Environ Int 2020 Sep 17;142:105803. Epub 2020 Jun 17.

Hydro-environmental Biotechnology Laboratory, Department of Water Resources, Faculty of Agricultural Engineering, University of Concepción, Chile. Electronic address:

Biotransport is often associated with migration patterns of species, including large, anadromous salmonids. Several studies have reported biotransport of persistent organic pollutants in the Northern Hemisphere, but there is no published information on biotransport ocurring south of the equator. Chile's Patagonia is one of the last largely intact natural areas in the world. Read More

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http://dx.doi.org/10.1016/j.envint.2020.105803DOI Listing
September 2020

Sexual harassment by peers in Chilean schools.

Child Abuse Negl 2020 Jun 17;107:104602. Epub 2020 Jun 17.

Junta Nacional de Auxilio Escolar y Becas JUNAEB, Chile. Electronic address:

Background: Although a significant amount of literature has explored peer sexual harassment in higher education, little is known about peer sexual harassment in primary and middle school. Among existing studies, most have examined individual student characteristics that predict peer sexual harassment without considering the importance of the classroom and school context, which may prevent or promote such harassment.

Objective: The purpose of this study was to identify individual and school-related factors predicting sexual harassment victimization. Read More

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http://dx.doi.org/10.1016/j.chiabu.2020.104602DOI Listing

Long-Acting Contraception in Adolescents and Young Women With Type 1 and Type 2 Diabetes.

Pediatr Diabetes 2020 Jun 19. Epub 2020 Jun 19.

Institute of Maternal and Child Research, School of Medicine, University of Chile, Santiago, Chile.

Adolescent pregnancy is a major public health problem worldwide. Adolescents living with diabetes are not aware of the risks of unplanned pregnancy and the high rate of fetal and maternal complications when gestation occurs in women with significant hyperglycemia. These data highlight the significance of pregnancy prevention in young women with diabetes. Read More

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http://dx.doi.org/10.1111/pedi.13069DOI Listing

Chilean's Self-Perception of Their Self-Regulatory Behaviors and Vocal Symptoms.

J Voice 2020 Jun 16. Epub 2020 Jun 16.

Speech-Language Pathology Department, Universidade Federal de São Paulo - UNIFESP. Botucatu Street, 802, Vila Clementino, São Paulo, São Paulo, Brazil. 04023-062.

Objective: To compare vocal symptoms and self-regulatory behaviors between Chileans having behavioral dysphonia and those who were vocally healthy; and to correlate their vocal symptoms and self-regulatory behaviors.

Material And Methods: The 100 Chileans who participated in this study were divided into the dysphonic group (DG) having behavioral dysphonia and the vocally healthy group (VHG). The DG and VHG each had 50 participants (32 females and 18 males), whose mean ages were 28. Read More

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http://dx.doi.org/10.1016/j.jvoice.2020.04.036DOI Listing

Alexandrium catenella cyst accumulation by passive and active dispersal agents: Implications for the potential spreading risk in Chilean Patagonian fjords.

Harmful Algae 2020 Jun 1;96:101832. Epub 2020 Jun 1.

Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (IEO), Subida a Radio Faro 50, Vigo 36390, Spain.

The dinoflagellate Alexandrium catenella is responsible for paralytic shellfish poisoning and negative socioeconomic impacts on the fishing industry and aquaculture. In Chilean Patagonia, the reasons underlying the significant increase in the geographical extension (from south to north) of A. catenella blooms during the last five decades are not well understood. Read More

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http://dx.doi.org/10.1016/j.hal.2020.101832DOI Listing

Road traffic accidents of the elderly in Chile between the years 2008-2017: A register-based descriptive study.

Medwave 2020 06 8;20(5):e7923. Epub 2020 Jun 8.

Centro de Estudio del Trabajo y Factores Humanos, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile.

Objective: To determine whether Chilean elderly persons have higher rates of traffic incidents, resulting in death or injury, compared to non-older adults between 2008 and 2017.

Method: The databases of the National Traffic Safety Commission of the last ten years and the data of inhabitants according to the projections made by the National Statistics Institute were used. Effect measures and 95% confidence intervals were calculated. Read More

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http://dx.doi.org/10.5867/medwave.2020.05.7923DOI Listing

Physical activity, screen time and subjective well-being among children.

Int J Clin Health Psychol 2020 May-Aug;20(2):126-134. Epub 2020 Apr 12.

Facultad de Educación y Ciencias Sociales, Universidad Andres Bello, Chile.

Background/objective: The aim of the study was to explore the differences between physical activity and/or screen time levels on cognitive (Life satisfaction LS) and affective (Positive affect, PA and Negative affect NA) components of subjective well-being (SWB) in children.

Method: This cross-sectional study enrolled 1,540 children (1,040 boys, 8-12 years old). LS, PA, NA, physical activity and screen time were assessed with validated questionnaires. Read More

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http://dx.doi.org/10.1016/j.ijchp.2020.03.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7296239PMC

Spectrum and Frequency of Tumors, Cancer Risk and Survival in Chilean Families with Lynch Syndrome: Experience of the Implementation of a Registry.

J Clin Med 2020 Jun 15;9(6). Epub 2020 Jun 15.

Oncology and Molecular Genetic Laboratory, Coloproctology Unit, Clínica Las Condes, Santiago 7591047, Chile.

Lynch syndrome (LS) is associated with the highest risk of colorectal (CRC) and several extracolonic cancers. In our effort to characterize LS families from Latin America, this study aimed to describe the spectrum of neoplasms and cancer risk by gender, age and gene, and survival in 34 Chilean LS families. Of them, 59% harbored , 23% , 12% and 6% variants. Read More

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http://dx.doi.org/10.3390/jcm9061861DOI Listing

Structural Characterization, DFT Calculation, NCI, Scan-Rate Analysis and Antifungal Activity against of ()-2-{[(2-Aminopyridin-2-yl)imino]-methyl}-4,6-di--butylphenol (Pyridine Schiff Base).

Molecules 2020 Jun 13;25(12). Epub 2020 Jun 13.

Laboratorio de Genética y Patogénesis Bacteriana, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 330, 8370186 Santiago, Chile.

is a ubiquitous necrotrophic filamentous fungal phytopathogen that lacks host specificity and can affect more than 1000 different plant species. In this work, we explored [(E)-2-{[(2-aminopyridin-2-yl)imino]-methyl}-4,6-di-tert-butylphenol], a pyridine Schiff base harboring an intramolecular bond (IHB), regarding their antifungal activity against Botrytis cinerea. Moreover, we present a full characterization of the L1 by NMR and powder diffraction, as well as UV-vis, in the presence of previously untested different organic solvents. Read More

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http://dx.doi.org/10.3390/molecules25122741DOI Listing

Genetic Characterization of an Endangered Chilean Endemic Species, Muñoz, Reveals its Hybrids Parentage.

Plants (Basel) 2020 Jun 12;9(6). Epub 2020 Jun 12.

Instituto Nacional Forestal (INFOR), Sede Metropolitana y Sede Diaguita, 1760000 Diaguitas, Chile.

The hybridization of , a critically endangered endemic species, and the identification of its paternal species has not been genetically studied before. In this study we aimed to genetically confirm the origin of this species. To resolve the parental status of , inter-simple sequence repeat (ISSR), simple sequence repeats (SSR) and intron molecular markers were used, and compared with Chilean species from the and sections. Read More

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http://dx.doi.org/10.3390/plants9060744DOI Listing

Ethical allocation of scarce health care resources in the context of the COVID-19 crisis.

Medwave 2020 Jun 16;20(5):e7935. Epub 2020 Jun 16.

Department of Bioethics, The Clinical Center, National Institutes of Health, United States; Departamento de Bioética y Humanidades Médicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile. Address: Department of Bioethics, National Institutes of Health, 10 Center Drive, Building 10, Room 1C118, Bethesda, MD 20892-1156, United States. Email: ORCID: 0000-0003-2409-8324.

The current COVID-19 pandemic has the potential to overwhelm the capacity of hospitals and Intensive Care Units in Chile and Latin America. Thus local authorities have an ethical obligation to be prepared by implementing pertinent measures to prevent a situation of rationing of scarce healthcare resources, and by defining ethically acceptable and socially legitimate criteria for the allocation of these resources. This paper responds to recent ethical guidelines issued by a Chilean academic institution and discusses the main moral principles for the ethical foundations of criteria for rationing during the present crisis. Read More

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http://dx.doi.org/10.5867/medwave.2020.05.7935DOI Listing

Measuring adult romantic attachment: psychometric properties of the brief Spanish version of the experiences in close relationships.

Psicol Reflex Crit 2020 Jun 5;33(1). Epub 2020 Jun 5.

School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, K1N6N5, Canada.

The Experiences in Close Relationships (Brennan et al, Attachment theory and close relationships, 1998) questionnaire is one of the most widely used measures of adult romantic attachment. Despite the advantages of the ECR, the length of this measure may discourage its use in clinical and research contexts. Consequently, the goal of this study was to develop a brief Spanish version of the ECR questionnaire and to examine its psychometric properties when administered to six different Spanish-speaking samples from Chile. Read More

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http://dx.doi.org/10.1186/s41155-020-00145-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7295914PMC