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https://www.readbyqxmd.com/read/27901194/seasonal-variation-of-the-essential-oil-from-two-brazilian-native-aldama-la-llave-asteraceae-species
#1
Tuane S DE Oliveira, Aline B Bombo, Adriana S S DE Oliveira, Vera L Garcia, Beatriz Appezzato-DA-Glória
Aldama arenaria and A. robusta are morphologically similar aromatic species that have seasonal development. The yield and chemical composition of essential oils from aerial and underground vegetative organs of these species were compared to verify the production of volatile metabolites in flowering and dormant phases of development and to identify if there are unique compounds for either species. The major compound in the essential oils from A. arenaria leaves was palustrol (16.22%) and for aerial stems was limonene (15...
2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27786463/feasibility-of-full-li-ion-o2-cells-comprised-of-hard-carbon-anodes
#2
Daniel Hirshberg, Daniel Sharon, Ezequiel De La Llave, Michal Afri, Aryeh A Frimer, Won-Jin Kwak, Yang-Kook Sun, Doron Aurbach
Aprotic Li-O2 battery is an exciting concept. The enormous theoretical energy density and cell assembly simplicity make this technology very appealing. Nevertheless, the instability of the cell components, such as cathode, anode, and electrolyte solution during cycling, does not allow this technology to be fully commercialized. One of the intrinsic challenges facing researchers is the use of lithium metal as an anode in Li-O2 cells. The high activity toward chemical moieties and lack of control of the dissolution/deposition processes of lithium metal makes this anode material unreliable...
October 27, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27678304/breast-cancer-cell-invasion-into-a-three-dimensional-tumor-stroma-microenvironment
#3
Danh Truong, Julieann Puleo, Alison Llave, Ghassan Mouneimne, Roger D Kamm, Mehdi Nikkhah
In this study, to model 3D chemotactic tumor-stroma invasion in vitro, we developed an innovative microfluidic chip allowing side-by-side positioning of 3D hydrogel-based matrices. We were able to (1) create a dual matrix architecture that extended in a continuous manner, thus allowing invasion from one 3D matrix to another, and (2) establish distinct regions of tumor and stroma cell/ECM compositions, with a clearly demarcated tumor invasion front, thus allowing us to quantitatively analyze progression of cancer cells into the stroma at a tissue or single-cell level...
September 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27562126/oxidative-stress-equilibrium-during-obstetric-event-in-normal-pregnancy
#4
Jose Manuel Salas-Pacheco, Diana Lelidett Lourenco-Jaramillo, Edna Madai Mendez-Hernandez, Ada Agustina Sandoval-Carrillo, Yessica Ivonne Hernandez Rayon, Osmel La Llave-Leon, Marisela Aguilar-Duran, Marcos Alonso Lopez-Terrones, Marcelo Barraza-Salas, Fernando Vazquez-Alaniz
OBJECTIVE: The aim of this study was to determine malondialdehyde (MDA) concentration as an oxidative stress marker and total antioxidant capacity (TAC) in pregnancy before and after perinatal event. METHODS: This study was performed on 200 healthy full-term pregnant women admitted to pregnancy resolution in Maternal-Child Hospital of Durango, Mexico. Oxidative stress and total antioxidant capacity were assessed through detection of lipid peroxidation by quantitation of thiobarbituric acid-reactive substances (TBARS) and total antioxidant capacity (TAC) through ferric reducing ability of the plasma (FRAP) Results: Our results showed increased levels of MDA after vaginal delivery...
August 25, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27442236/dynamic-cross-talk-between-host-primary-metabolism-and-viruses-during-infections-in-plants
#5
REVIEW
César Llave
Upon infection plant viruses modulate cellular functions and resources to survive and reproduce. Plant cells in which the virus is replicating are transformed into strong metabolic sinks. This conversion gives rise to a massive reprogramming of plant primary metabolism. Such a metabolic shift involves perturbations in carbohydrates, amino acids and lipids that eventually lead to increase respiration rates, and/or decrease in photosynthetic activity. By doing so, plants provide metabolic acclimation against cellular stress and meet the increased demand for energy needed to sustain virus multiplication and defense responses against viruses...
August 2016: Current Opinion in Virology
https://www.readbyqxmd.com/read/27423566/sleep-as-spatiotemporal-integration-of-biological-processes-that-evolved-to-periodically-reinforce-neurodynamic-and-metabolic-homeostasis-the-2m3d-paradigm-of-sleep
#6
REVIEW
Edward Claro Mader, Annie Cielo Llave Mader
Sleep continues to perplex scientists and researchers. Despite decades of sleep research, we still lack a clear understanding of the biological functions and evolution of sleep. In this review, we will examine sleep from a functional and phylogenetic perspective and describe some important conceptual gaps in understanding sleep. Classical theories of the biology and evolution of sleep emphasize sensory activation, energy balance, and metabolic homeostasis. Advances in electrophysiology, functional neuroimaging, and neuroplasticity allow us to view sleep within the framework of neural dynamics...
August 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27410163/immediate-and-short-term-effects-of-the-combination-of-dry-needling-and-percutaneous-tens-on-post-needling-soreness-in-patients-with-chronic-myofascial-neck-pain
#7
Jose V León-Hernández, Aitor Martín-Pintado-Zugasti, Laura G Frutos, Isabel M Alguacil-Diego, Ana I de la Llave-Rincón, Josue Fernandez-Carnero
Background: Dry needling (DN) and percutaneous electrical nerve stimulation (PENS) are widely used techniques in the treatment of myofascial pain. Objective: To investigate the immediate and short-term effects of the combination of DN and PENS compared to DN alone on the upper trapezius muscle. Method: This is a 72-hour follow-up single-blinded randomized controlled trial. Sixty-two volunteer patients with chronic myofascial neck pain with active Myofascial Trigger Points (MTrPs) in the upper trapezius muscle were recruited...
July 11, 2016: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/27401918/arsenic-exposure-and-risk-of-preeclampsia-in-a-mexican-mestizo-population
#8
Ada Sandoval-Carrillo, Edna M Méndez-Hernández, Elizabeth I Antuna-Salcido, Sergio M Salas-Pacheco, Fernando Vázquez-Alaniz, Alfredo Téllez-Valencia, Marisela Aguilar-Durán, Marcelo Barraza-Salas, Francisco X Castellanos-Juárez, Osmel La Llave-León, José M Salas-Pacheco
BACKGROUND: Exposure to arsenic in drinking water has been associated with various complications of pregnancy including fetal loss, low birth weight, anemia, gestational diabetes and spontaneous abortion. However, to date, there are no studies evaluating its possible association with preeclampsia. METHODS: This case-control study involved 104 preeclamptic and 202 healthy pregnant women. The concentrations of arsenic in drinking water and urine were measured using a Microwave Plasma-Atomic Emission Spectrometer...
2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/26642926/comparison-between-na-ion-and-li-ion-cells-understanding-the-critical-role-of-the-cathodes-stability-and-the-anodes-pretreatment-on-the-cells-behavior
#9
COMPARATIVE STUDY
Ezequiel de la Llave, Valentina Borgel, Kang-Joon Park, Jang-Yeon Hwang, Yang-Kook Sun, Pascal Hartmann, Frederick-Francois Chesneau, Doron Aurbach
The electrochemical behavior of Na-ion and Li-ion full cells was investigated, using hard carbon as the anode material, and NaNi0.5Mn0.5O2 and LiNi0.5Mn0.5O2 as the cathodes. A detailed description of the structure, phase transition, electrochemical behavior and kinetics of the NaNi0.5Mn0.5O2 cathodes is presented, including interesting comparison with their lithium analogue. The critical effect of the hard carbon anodes pretreatment in the total capacity and stability of full cells is clearly demonstrated...
January 27, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/26567676/molecular-and-electronic-structure-of-osmium-complexes-confined-to-au-111-surfaces-using-a-self-assembled-molecular-bridge
#10
Ezequiel de la Llave, Santiago E Herrera, Catherine Adam, Lucila P Méndez De Leo, Ernesto J Calvo, Federico J Williams
The molecular and electronic structure of Os(II) complexes covalently bonded to self-assembled monolayers (SAMs) on Au(111) surfaces was studied by means of polarization modulation infrared reflection absorption spectroscopy, photoelectron spectroscopies, scanning tunneling microscopy, scanning tunneling spectroscopy, and density functional theory calculations. Attachment of the Os complex to the SAM proceeds via an amide covalent bond with the SAM alkyl chain 40° tilted with respect to the surface normal and a total thickness of 26 Å...
November 14, 2015: Journal of Chemical Physics
https://www.readbyqxmd.com/read/26479622/efficient-generation-of-hermite-gauss-and-ince-gauss-beams-through-kinoform-phase-elements
#11
Dilia Aguirre-Olivas, Gabriel Mellado-Villaseñor, David Sánchez-de-la-Llave, Victor Arrizón
We discuss the generation of Hermite-Gauss and Ince-Gauss beams employing phase elements whose transmittances coincide with the phase modulations of such beams. A scaled version of the desired field appears, distorted by marginal optical noise, at the element's Fourier domain. The motivation to perform this study is that, in the context of the proposed approach, the desired beams are generated with the maximum possible efficiency. A disadvantage of the method is the distortion of the desired beams by the influence of several nondesired beam modes generated by the phase elements...
October 1, 2015: Applied Optics
https://www.readbyqxmd.com/read/26281946/manual-physical-therapy-versus-surgery-for-carpal-tunnel-syndrome-a-randomized-parallel-group-trial
#12
RANDOMIZED CONTROLLED TRIAL
César Fernández-de-Las Peñas, Ricardo Ortega-Santiago, Ana I de la Llave-Rincón, Almudena Martínez-Perez, Homid Fahandezh-Saddi Díaz, Javier Martínez-Martín, Juan A Pareja, Maria L Cuadrado-Pérez
UNLABELLED: This randomized clinical trial investigated the effectiveness of surgery compared with physical therapy consisting of manual therapies including desensitization maneuvers in carpal tunnel syndrome (CTS). The setting was a public hospital and 2 physical therapy practices in Madrid, Spain. One hundred twenty women with CTS were enrolled between February 2013 and January 2014, with 1-year follow-up completed in January 2015. Interventions consisted of 3 sessions of manual therapies including desensitization maneuvers of the central nervous system (physical therapy group, n = 60) or decompression/release of the carpal tunnel (surgical group, n = 60)...
November 2015: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/26161030/understanding-postpartum-healthcare-services-and-exploring-the-challenges-and-motivations-of-maternal-health-service-providers-in-the-philippines-a-qualitative-study
#13
Tadashi Yamashita, Sherri Ann Suplido, Cecilia Llave, Maria Teresa R Tuliao, Yuko Tanaka, Hiroya Matsuo
BACKGROUND: Given the shortage of medical professionals in the Philippines, Barangay Health Workers (BHWs) may play a role in providing postpartum healthcare services. However, as there are no reports regarding BHW activities in postpartum healthcare, we conducted this study to understand postpartum healthcare services and to explore the challenges and motivations of maternal health service providers. METHODS: Focus group interview (FGI) of 13 participants was conducted as qualitative research methodology at Muntinlupa City...
June 2015: Tropical Medicine and Health
https://www.readbyqxmd.com/read/26118519/neuroscience-education-in-addition-to-trigger-point-dry-needling-for-the-management-of-patients-with-mechanical-chronic-low-back-pain-a-preliminary-clinical-trial
#14
RANDOMIZED CONTROLLED TRIAL
Mario Téllez-García, Ana I de-la-Llave-Rincón, Jaime Salom-Moreno, Maria Palacios-Ceña, Ricardo Ortega-Santiago, César Fernández-de-Las-Peñas
The objective of the current study was to determine the short-term effects of trigger point dry needling (TrP-DN) alone or combined with neuroscience education on pain, disability, kinesiophobia and widespread pressure sensitivity in patients with mechanical low back pain (LBP). Twelve patients with LBP were randomly assigned to receive either TrP-DN (TrP-DN) or TrP-DN plus neuroscience education (TrP-DN + EDU). Pain intensity (Numerical Pain Rating Scale, 0-10), disability (Roland-Morris Disability Questionnaire-RMQ-, Oswestry Low Back Pain Disability Index-ODI), kinesiophobia (Tampa Scale of Kinesiophobia-TSK), and pressure pain thresholds (PPT) over the C5-C6 zygapophyseal joint, transverse process of L3 vertebra, second metacarpal, and tibialis anterior muscle were collected at baseline and 1-week after the intervention...
July 2015: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/26055278/-metastatic-collision-tumour-a-case-report
#15
Oscar Zenón Rosas-Guerra, Jorge Alfonso Pérez-Castro y Vázquez, Gumaro Hugolino Andrade-López, Fernando Vera-Rodríguez, Heriberto Garza-de la Llave
BACKGROUND: Collision tumours are extremely rare. They are defined by the presence of two tumours of different histological origin in the same organ. CLINICAL CASE: A 71 year old female with history of a carcinoid tumour removed 20 years ago without any recurrence. The patient was admitted with intestinal occlusion symptoms secondary to a right flank abdominal tumour. An exploratory laparotomy was performed, removing the tumor and applying optimal debulking. The histopathological study reported bilateral ovary adenocarcinoma, as well as metastatic collision tumour of two histological types: well differentiated adenocarcinoma and a mixed malignant mesodermic Mullerian tumor...
May 2015: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/25882866/pain-is-associated-to-clinical-psychological-physical-and-neurophysiological-variables-in-women-with-carpal-tunnel-syndrome
#16
Juan J Fernández-Muñoz, María Palacios-Ceña, Margarita Cigarán-Méndez, Ricardo Ortega-Santiago, Ana I de-la-Llave-Rincón, Jaime Salom-Moreno, César Fernández-de-las-Peñas
OBJECTIVES: To investigate potential relationships of clinical (age, function, side of pain, years with pain), physical (cervical range of motion, pinch grip force), psychological (depression), and neurophysiological (pressure and thermal pain thresholds) outcomes and hand pain intensity in carpal tunnel syndrome (CTS). METHODS: Two hundred and forty-four (n=224) women with CTS were recruited. Demographic data, duration of the symptoms, function and severity of the disease, pain intensity, depression, cervical range of motion, pinch tip grip force, heat/cold pain thresholds (HPT/CPT), and pressure pain thresholds (PPT) were collected...
February 2016: Clinical Journal of Pain
https://www.readbyqxmd.com/read/25831285/optimum-generation-of-annular-vortices-using-phase-diffractive-optical-elements
#17
Victor Arrizón, Ulises Ruiz, David Sánchez-de-la-Llave, Gabriel Mellado-Villaseñor, Andrey S Ostrovsky
An annular vortex of arbitrary integer topological charge q can be obtained at the Fourier domain of appropriate phase diffractive optical elements. In this context we prove that the diffractive element that generates the vortex with maximum peak intensity has the phase modulation of a propagation-invariant qth order Bessel beam. We discuss additional advantages of this phase element as annular vortex generator.
April 1, 2015: Optics Letters
https://www.readbyqxmd.com/read/25787925/activation-of-senescence-associated-dark-inducible-din-genes-during-infection-contributes-to-enhanced-susceptibility-to-plant-viruses
#18
Lourdes Fernández-Calvino, Irene Guzmán-Benito, Francisco J Del Toro, Livia Donaire, Ana B Castro-Sanz, Virginia Ruíz-Ferrer, César Llave
Virus infections in plants cause changes in host gene expression that are common to other environmental stresses. In this work, we found extensive overlap in the transcriptional responses between Arabidopsis thaliana plants infected with Tobacco rattle virus (TRV) and plants undergoing senescence. This is exemplified by the up-regulation during infection of several senescence-associated Dark-inducible (DIN) genes, including AtDIN1 (Senescence 1, SEN1), AtDIN6 (Asparagine synthetase 1, AtASN1) and AtDIN11. DIN1, DIN6 and DIN11 homologues were also activated in Nicotiana benthamiana in response to TRV and Potato virus X (PVX) infection...
January 2016: Molecular Plant Pathology
https://www.readbyqxmd.com/read/25531188/relationship-between-blood-lead-levels-and-hematological-indices-in-pregnant-women
#19
Osmel La-Llave-León, Rodrigo Lugo-Soto, Marisela Aguilar-Durán, Sergio Estrada-Martínez, José-Manuel Salas-Pacheco, Ada Sandoval-Carrillo, Francisco Xavier Castellanos-Juárez, Marcel Barraza-Salas, Fernando Vázquez-Alanís, Gonzalo García-Vargas
Several studies have revealed a negative association between blood lead levels and hematological impairment. In this cross-sectional study, we examined the relationship between blood lead levels and hematological indices in 292 pregnant women from Durango, Mexico. Apparently healthy pregnant women, aged 14-41 years and at 3-41 weeks of gestation, were recruited between June 2007 and May 2008. Blood lead and hematological indices were measured. The mean blood lead was 2.79 ± 2.16 μg/dL, and lead levels ≥ 5 μg/dL were detected in 25 women (8...
2015: Women & Health
https://www.readbyqxmd.com/read/25414666/feasibility-of-the-medial-temporal-lobe-atrophy-index-mtai-and-derived-methods-for-measuring-atrophy-of-the-medial-temporal-lobe
#20
Francisco Conejo Bayón, Jesús Maese, Aníbal Fernandez Oliveira, Tamara Mesas, Estibaliz Herrera de la Llave, Tania Alvarez Avellón, Manuel Menéndez-González
INTRODUCTION: The Medial Temporal-lobe Atrophy index (MTAi), 2D-Medial Temporal Atrophy (2D-MTA), yearly rate of MTA (yrRMTA) and yearly rate of relative MTA (yrRMTA) are simple protocols for measuring the relative extent of atrophy in the medial temporal lobe (MTL) in relation to the global brain atrophy. Albeit preliminary studies showed interest of these methods in the diagnosis of Alzheimer's disease (AD), frontotemporal lobe degeneration (FTLD) and correlation with cognitive impairment in Parkinson's disease (PD), formal feasibility and validity studies remained pending...
2014: Frontiers in Aging Neuroscience
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