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https://www.readbyqxmd.com/read/28729869/genetic-patterns-of-myrceugenia-correifolia-a-rare-species-of-fog-dependent-forests-of-mediterranean-chile-is-it-a-climatic-relict
#1
Fernanda Pérez, Luis F Hinojosa, Gioconda Peralta, Paz Montenegro, Carla Irarrázabal, Michel Cossio
Rare species frequently occur in areas with microclimatic conditions that are atypical for their regions, but that were more common in the past, and that probably have operated as climatic refugia for a long time. Myrceugenia correifolia is a rare arboreal species that grows in deep canyons and hilltops of the Coast Range of north-central Chile between 30° and 35°S. In the northern edge of its distribution M. correifolia grows in small patches of fog-dependent forest surrounding by xeric vegetation. These forest formations are thought to be remnants of an ancient and continuous rainforest that according to some authors became fragmented during aridization of the Neogene (Neogene relict) and to others during warm-dry cycles of the Pleistocene (glacial relicts)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28723940/modeling-the-dynamics-of-chromosomal-alteration-progression-in-cervical-cancer-a-computational-model
#2
Augusto Cabrera-Becerril, Cruz Vargas-De-León, Sergio Hernández, Pedro Miramontes, Raúl Peralta
Computational modeling has been applied to simulate the heterogeneity of cancer behavior. The development of Cervical Cancer (CC) is a process in which the cell acquires dynamic behavior from non-deleterious and deleterious mutations, exhibiting chromosomal alterations as a manifestation of this dynamic. To further determine the progression of chromosomal alterations in precursor lesions and CC, we introduce a computational model to study the dynamics of deleterious and non-deleterious mutations as an outcome of tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28723831/effect-of-intrathecal-bupivacaine-dose-on-the-success-of-external-cephalic-version-for-breech-presentation-a-prospective-randomized-blinded-clinical-trial
#3
Laurie A Chalifoux, Jeanette R Bauchat, Nicole Higgins, Paloma Toledo, Feyce M Peralta, Jason Farrer, Susan E Gerber, Robert J McCarthy, John T Sullivan
BACKGROUND: Breech presentation is a leading cause of cesarean delivery. The use of neuraxial anesthesia increases the success rate of external cephalic version procedures for breech presentation and reduces cesarean delivery rates for fetal malpresentation. Meta-analysis suggests that higher-dose neuraxial techniques increase external cephalic version success to a greater extent than lower-dose techniques, but no randomized study has evaluated the dose-response effect. We hypothesized that increasing the intrathecal bupivacaine dose would be associated with increased external cephalic version success...
July 19, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28721687/practical-approach-to-initiating-sglt2-inhibitors-in-type-2-diabetes
#4
REVIEW
Fernando Gomez-Peralta, Cristina Abreu, Albert Lecube, Diego Bellido, Alfonso Soto, Cristóbal Morales, Miguel Brito-Sanfiel, Guillermo Umpierrez
Sodium-glucose co-transporter 2 (SGLT2) inhibitors are an attractive novel therapeutic option for the treatment of type 2 diabetes. They block the reabsorption of filtered glucose in kidneys, mainly in proximal renal tubules, resulting in increased urinary glucose excretion and correction of the diabetes-related hyperglycemia. Beyond improving glucose control, SGLT2 inhibitors offer potential benefits by reducing body weight and blood pressure. On the basis of the efficacy demonstrated in clinical trials, SGLT2 inhibitors are recommended as second- or third-line agents for the management of patients with type 2 diabetes...
July 18, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28711003/environmentally-relevant-concentrations-of-herbicides-impact-non-target-species-at-multiple-sublethal-endpoints
#5
Simone Hasenbein, Jade Peralta, Sharon P Lawler, Richard E Connon
There is concern over herbicide exposure effects on aquatic primary production and zooplankton as herbicides are found in aquatic ecosystems at concentrations potentially toxic to phytoplankton. We first aimed to determine the effect concentrations (growth inhibition) and mixture interactions of the herbicides diuron (0.5 to 50μg/L) and hexazinone (0.5 to 40μg/L) on the green algae Pseudokirchneriella subcapitata. Secondly, we evaluated chronic effects on Daphnia magna that were periodically fed on P. subcapitata that had been exposed to low, medium, and high concentrations...
July 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28705534/neuraxial-labor-analgesia-is-not-an-independent-predictor-of-perineal-lacerations-after-vaginal-delivery-of-patients-with-intrauterine-fetal-demise
#6
Ji H Lee, Feyce M Peralta, Anna Palatnik, Christina Lewicky Gaupp, Robert J McCarthy
INTRODUCTION: The role of neuraxial labor analgesia in perineal trauma following live births is controversial, and no studies have assessed the association in women delivering an intrauterine fetal demise. We evaluated the relationship between neuraxial labor analgesia and perineal laceration in these patients. METHODS: This was a retrospective case-control study of women with a diagnosis of fetal death after 20weeks of gestation, a vaginal delivery, and an Apgar score of 0 at delivery, during the period from January 2007 through December 2015...
June 1, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28704854/switching-from-premixed-insulin-to-basal-insulin-analogue-for-type-2-diabetes-and-role-of-dipeptidyl-peptidase-4-inhibitors
#7
Fernando Gómez-Peralta, Cristina Abreu, Gustavo Mora-Navarro, Pilar López-Morandeira, Esteban Pérez-Gutierrez, Blanca Cordero-García, Miguel Brito-Sanfiel
Introduction This study aimed to confirm the usefulness of basal insulin analogue plus oral antidiabetic drugs (OADs) for type 2 diabetes (T2D) patients inadequately controlled with premixed insulin with/without OADs and assess the role of dipeptidyl peptidase-4 (DPP-4) inhibitors within this regimen in clinical practice. Methods Spanish retrospective observational study that included 186 T2D patients with glycosylated hemoglobin (HbA1c) >7% (53 mmol/mol) despite premixed insulin with/without OADs who had been switched to basal insulin analogue plus OADs...
July 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28702261/macular-findings-in-spectral-domain-optical-coherence-tomography-and-oct-angiography-in-a-patient-with-kearns-sayre-syndrome
#8
Alvaro Ortiz, Juan Arias, Pedro Cárdenas, John Villamil, Marcela Peralta, Luis C Escaf, Jacobo Ortiz
BACKGROUND: To report the clinical, electrophysiological and the anatomical findings in a patient with Kearns-Sayre syndrome (KSS). CASE PRESENTATION: We present the case of a 55-year-old female with KSS, who developed systemic features and ocular manifestations as ophthalmoplegia and retinal dysfunction, that were corroborated by electrophysiological test and High Definition Spectral Domain Optical Coherence Tomography (HD SD OCT) and OCT-Angiography (OCT-A). CONCLUSION: We report a patient with KSS, accompanied by some alterations of the RPE and photoreceptors observed in the external HD SD OCT and OCT-A...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28700540/clinical-and-radiological-presentations-and-management-of-blunt-splenic-trauma-a-single-tertiary-hospital-experience
#9
Gaby Jabbour, Ammar Al-Hassani, Ayman El-Menyar, Husham Abdelrahman, Ruben Peralta, Mohammed Ellabib, Hisham Al-Jogol, Mohammed Asim, Hassan Al-Thani
BACKGROUND Splenic injury is the leading cause of major bleeding after blunt abdominal trauma. We examined the clinical and radiological presentations, management, and outcome of blunt splenic injuries (BSI) in our institution. MATERIAL AND METHODS A retrospective study of BSI patients between 2011 and 2014 was conducted. We analyzed and compared management and outcome of different splenic injury grades in trauma patients. RESULTS A total of 191 BSI patients were identified with a mean (SD) age of 26.9 years (13...
July 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28696537/fire-influences-the-structure-of-plant-bee-networks
#10
G Peralta, E L Stevani, N P Chacoff, J Dorado, D P Vázquez
1. Fire represents a frequent disturbance in many ecosystems, which can affect plant-pollinator assemblages and hence the services they provide. Furthermore, fire events could affect the architecture of plant-pollinator interaction networks, modifying the structure and function of communities. 2. Some pollinators, such as wood-nesting bees, may be particularly affected by fire events due to damage to nesting material and its long regeneration time. However, it remains unclear whether fire influences the structure of bee plant interactions...
July 11, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28690784/winter-is-coming-food-web-structure-and-seasonality-in-a-subtropical-freshwater-coastal-lake
#11
Ignacio Peralta-Maraver, Anne L Robertson, Enrico L Rezende, Aurea Luiza Lemes da Silva, Denise Tonetta, Michelle Lopes, Rafael Schmitt, Nei K Leite, Alex Nuñer, Mauricio M Petrucio
Food web studies provide a useful tool to assess the organization and complexity of natural communities. Nevertheless, the seasonal dynamics of food web properties, their environmental correlates, and potential association with community diversity and stability remain poorly studied. Here, we condensed an incomplete 6-year community dataset of a subtropical coastal lake to examine how monthly variation in diversity impacts food web structure over an idealized time series for an averaged year. Phytoplankton, zooplankton, macroinvertebrates, and fish were mostly resolved to species level (n = 120 trophospecies)...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28688209/quantifying-the-efficiency-of-saccharomyces-cerevisiae-translocation-tags
#12
Amy M Ehrenworth, Mitchell A Haines, Amy Wong, Pamela Peralta-Yahya
Compartmentalization of metabolic pathways into organelles of the yeast Saccharomyces cerevisiae has been used to improve chemical production. Pathway compartmentalization aids chemical production by bringing enzymes into close proximity to one another, placing enzymes near key starting metabolites or essential co-factors, increasing the effective concentration of metabolic intermediates, and providing a more suitable chemical environment for enzymatic activity. Although several translocation tags have been used to localize enzymes to different yeast organelles, their translocation efficiencies have not been quantified...
July 8, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28687999/use-of-yeast-pichia-kudriavzevii-as-a-novel-feed-additive-to-ameliorate-the-effects-of-aflatoxin-b1-on-broiler-chicken-performance
#13
A P Magnoli, M C Rodriguez, M L González Pereyra, V L Poloni, M F Peralta, A J Nilson, R D Miazzo, G Bagnis, S M Chiacchiera, L R Cavaglieri
The aim of this study was to evaluate the efficacy of autochthonous Pichia kudriavzevii as a novel bioadsorbent for aflatoxin B1 (AFB1). The selection of this yeast was based on the AFB1 adsorption capacity previously demonstrated in vitro (Magnoli et al. 2016). One-day-old Cobb broilers (n = 160) were randomly assigned to four dietary treatments (T1: basal diet (B); T2: B + 0.1% yeast; T3: B + AFB1, 100 μg/kg; T4: B + 0.1% yeast + AFB1, 100 μg/kg). Performance parameters (average daily weight gain body, average daily consumption, feed conversion ratio, carcass weight, and dead weight), biochemical parameters (albumin, globulin, and albumin/globulin), liver pathological changes, and AFB1 residual levels in the liver and excreta were evaluated...
July 8, 2017: Mycotoxin Research
https://www.readbyqxmd.com/read/28683350/the-metabolic-effects-of-diuron-in-the-rat-liver
#14
Mellina da Silva Simões, Lívia Bracht, Angela Valderrama Parizotto, Jurandir Fernando Comar, Rosane Marina Peralta, Adelar Bracht
A systematic study on the effects of diuron on the hepatic metabolism was conducted with emphasis on parameters linked to energy metabolism. The experimental system was the isolated perfused rat liver. The results demonstrate that diuron inhibited biosynthesis (gluconeogenesis) and ammonia detoxification, which are dependent of ATP generated within the mitochondria. Conversely, it stimulated glycolysis and fructolysis, which are compensatory phenomena for an inhibited mitochondrial ATP generation. Furthermore, diuron diminished the cellular ATP content under conditions where the mitochondrial respiratory chain was the only source of this compound...
June 27, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28669516/adherence-to-treatment-in-patients-with-systemic-lupus-erythematosus
#15
Sebastián Prados-Moreno, José Mario Sabio, José Manuel Pérez-Mármol, Nuria Navarrete-Navarrete, María Isabel Peralta-Ramírez
BACKGROUND AND OBJECTIVE: Non-adherence to treatment is usually a clinical problem in patients with systemic lupus erythematosus (SLE). Increasing the knowledge of predictors of treatment adherence can be meaningful in the clinical setting. The main objective of the present study was to analyse the influence of sociodemographic, clinical and psychological variables on the degree of treatment adherence in a sample of Spanish women with SLE. PATIENTS AND METHOD: This is an observational-transversal study...
June 29, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28647193/cryopreserved-venous-allograft-is-an-acceptable-conduit-in-patients-with-current-or-prior-angioaccess-graft-infection
#16
Michael P Harlander-Locke, Peter F Lawrence, Aamna Ali, Esther Bae, James Kohn, Christopher Abularrage, Michael Ricci, Gary W Lemmon, Sotero Peralta, Jeffrey Hsu
OBJECTIVE: The durability of cryopreserved allograft has been previously demonstrated in the setting of infection. The objective of this study was to examine the safety, efficacy, patency, and cost per day of graft patency associated with using cryopreserved allograft (vein and artery) for hemodialysis access in patients with no autogenous tissue for native fistula creation and with arteriovenous graft infection or in patients at high risk for infection. METHODS: Patients implanted with cryopreserved allograft for hemodialysis access between January 2004 and January 2014 were reviewed using a standardized, multi-institutional database that evaluated demographic, comorbidity, procedural, and outcomes data...
June 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646992/preventive-nephrology-in-the-era-of-i-evidence-should-we-screen-for-chronic-kidney-disease
#17
Carmen A Peralta, Michelle M Estrella
In this issue, Ferguson and colleagues demonstrate that chronic kidney disease (CKD) screening in populations burdened with CKD may be cost effective. Whether we should screen for CKD, however, continues to be debated despite the availability of effective clinical strategies that mitigate the risks of CKD progression. This study highlights the need for pragmatic trials to test the effectiveness of early CKD detection combined with optimization of clinical management and calls for innovation to tackle CKD.
July 2017: Kidney International
https://www.readbyqxmd.com/read/28642813/corrigendum-to-association-of-nuclear-factor-erythroid-2-related-factor-2-thioredoxin-interacting-protein-and-heme-oxygenase-1-gene-polymorphisms-with-diabetes-and-obesity-in-mexican-patients
#18
Angélica Saraí Jiménez-Osorio, Susana González-Reyes, Wylly Ramsés García-Niño, Hortensia Moreno-Macías, Martha Eunice Rodríguez-Arellano, Gilberto Vargas-Alarcón, Joaquín Zúñiga, Rodrigo Barquera, José Pedraza-Chaverri, Juan Pablo Meza-Espinoza, Evelia Leal-Ugarte, Valeria Peralta-Leal
[This corrects the article DOI: 10.1155/2016/7367641.].
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28639897/gene-signature-based-on-degradome-related-genes-can-predict-distal-metastasis-in-cervical-cancer-patients
#19
Jorge Fernandez-Retana, Horacio Zamudio-Meza, Miguel Rodriguez-Morales, Abraham Pedroza-Torres, David Isla-Ortiz, Luis Herrera, Nadia Jacobo-Herrera, Oscar Peralta-Zaragoza, César López-Camarillo, Fermin Morales-Gonzalez, David Cantu de Leon, Carlos Pérez-Plasencia
Cervical cancer is one of the leading causes of death in women worldwide, which mainly affects developing countries. The patients who suffer a recurrence and/or progression disease have a higher risk of developing distal metastases. Proteases comprising the degradome given its ability to promote cell growth, migration, and invasion of tissues play an important role during tumor development and progression. In this study, we used high-density microarrays and quantitative reverse transcriptase polymerase chain reaction to evaluate the degradome profile and their inhibitors in 112 samples of patients diagnosed with locally advanced cervical cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28637470/promoting-physical-activity-among-adolescent-girls-the-girls-in-sport-group-randomized-trial
#20
Anthony D Okely, David R Lubans, Philip J Morgan, Wayne Cotton, Louisa Peralta, Judith Miller, Marijka Batterham, Xanne Janssen
BACKGROUND: Slowing the decline in participation in physical activity among adolescent girls is a public health priority. This study reports the outcomes from a multi-component school-based intervention (Girls in Sport), focused on promoting physical activity among adolescent girls. METHODS: Group randomized controlled trial in 24 secondary schools (12 intervention and 12 control). Assessments were conducted at baseline (2009) and at 18 months post-baseline (2010)...
June 21, 2017: International Journal of Behavioral Nutrition and Physical Activity
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