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https://www.readbyqxmd.com/read/28813629/the-impact-of-the-eda-pathway-on-tooth-root-development
#1
J M Fons Romero, H Star, R Lav, S Watkins, M Harrison, M Hovorakova, D Headon, A S Tucker
The Eda pathway ( Eda, Edar, Edaradd) plays an important role in tooth development, determining tooth number, crown shape, and enamel formation. Here we show that the Eda pathway also plays a key role in root development. Edar (the receptor) is expressed in Hertwig's epithelial root sheath (HERS) during root development, with mutant mice showing a high incidence of taurodontism: large pulp chambers lacking or showing delayed bifurcation or trifurcation of the roots. The mouse upper second molars in the Eda pathway mutants show the highest incidence of taurodontism, this enhanced susceptibility being matched in human patients with mutations in EDA-A1...
August 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28812250/miv-150-and-zinc-acetate-combination-provides-potent-and-broad-activity-against-hiv-1
#2
Olga Mizenina, Mayla Hsu, Ninochka Jean-Pierre, Meropi Aravantinou, Keith Levendosky, Gabriela Paglini, Thomas M Zydowsky, Melissa Robbiani, José A Fernández-Romero
We previously showed that the combination of the non-nucleoside reverse transcriptase inhibitor (NNRTI) MIV-150 with zinc acetate (ZA) formulated in a carrageenan (CG; MZC) gel provided macaques significant protection against vaginal simian-human immunodeficiency virus-RT (SHIV-RT) challenge, better than either MIV-150/CG or ZA/CG. The MZC gel was shown to be safe in a phase 1 clinical trial. Herein, we used in vitro approaches to study the antiviral properties of ZA and the MIV-150/ZA combination, compared to other NNRTIs...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28811514/differential-epitope-recognition-in-the-immunodominant-staphylococcal-antigen-a-of-staphylococcus-aureus-by-mouse-versus-human-igg-antibodies
#3
Dennis G A M Koedijk, Francisco Romero Pastrana, Hedzer Hoekstra, Sanne van den Berg, Jaap Willem Back, Carolien Kerstholt, Rianne C Prins, Irma A J M Bakker-Woudenberg, Jan Maarten van Dijl, Girbe Buist
The immunodominant staphylococcal antigen A (IsaA) is a potential target for active or passive immunization against the important human pathogen Staphylococcus aureus. Consistent with this view, monoclonal antibodies against IsaA were previously shown to be protective against S. aureus infections in mouse models. Further, patients with the genetic blistering disease epidermolysis bullosa (EB) displayed high IsaA-specific IgG levels that could potentially be protective. Yet, mice actively immunized with IsaA were not protected against S...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809976/2-2-diiododimedone-a-mild-electrophilic-iodinating-agent-for-the-selective-synthesis-of-%C3%AE-iodoketones-from-allylic-alcohols
#4
Samuel Martinez-Erro, Antonio Bermejo Gómez, Ana Vázquez-Romero, Elis Erbing, Belén Martín-Matute
2,2-Diiodo-5,5-dimethylcyclohexane-1,3-dione is reported as a new electrophilic iodinating agent that selectively iodinates electron-rich aromatics. In contrast to other common electrophilic iodinating reagents, its mild nature allows it to be used for the selective synthesis of α-iodinated carbonyl compounds from allylic alcohols through a 1,3-hydrogen shift/iodination process catalyzed by iridium(iii) complexes.
August 15, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28809070/ambivalence-and-guilt-feelings-two-relevant-variables-for-understanding-caregivers-depressive-symptomatology
#5
Andrés Losada, María Márquez-González, Carlos Vara-García, Laura Gallego-Alberto, Rosa Romero-Moreno, Karl Pillemer
Providing care for a relative with dementia is considered to be a chronic stressor that has been linked to negative mental health consequences for caregivers. A theoretical model was developed and tested to assess the degree to which ambivalence and guilt feelings contribute to caregivers' depressive symptomatology. Participants included 212 dementia family caregivers. In addition to ambivalence and guilt feelings, sociodemographic characteristics, behavioural and psychological symptoms of dementia, and depressive symptomatology were assessed...
August 14, 2017: Clinical Psychology & Psychotherapy
https://www.readbyqxmd.com/read/28809063/color-and-power-doppler-combined-with-fetal-intelligent-navigation-echocardiography-fine-to-evaluate-the-fetal-heart
#6
L Yeo, R Romero
OBJECTIVE: To evaluate the performance of color and bidirectional power Doppler ultrasound combined with Fetal Intelligent Navigation Echocardiography (FINE) in examining the fetal heart. METHODS: A prospective cohort study was conducted of fetuses in the second and third trimesters with a normal heart or with congenital heart disease (CHD). One or more spatiotemporal image correlation (STIC) volume datasets, combined with color or bidirectional power Doppler (S-flow) imaging, were acquired in the apical four-chamber view...
August 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28807392/candidemia-and-colonization-by-candida-auris-a-diagnostic-challenge
#7
Lourdes Viñuela-Sandoval, Iker Falces-Romero, Julio García-Rodríguez, José María Eiros-Bouza
No abstract text is available yet for this article.
August 11, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28807303/helminth-egg-excretion-in-horses-kept-under-tropical-conditions-prevalence-distribution-and-risk-factors
#8
J Salas-Romero, K A Gómez-Cabrera, L A Aguilera-Valle, J A Bertot, J E Salas, A Arenal, M K Nielsen
Increasing levels of anthelmintic resistance observed in equine cyathostomin parasites have led to recommendations of selective anthelmintic treatment strategies to lower the selection pressure favoring resistant populations. This principle is based on determining strongyle fecal egg counts from all herd members, and treating those exceeding a predetermined treatment cutoff. However, epidemiological information is lacking from horses kept under tropical conditions, where parasite burdens may be of a different composition and magnitude compared to those of horses kept under temperate climate conditions...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807285/sarcoptes-scabiei-alters-follicular-dynamics-in-female-iberian-ibex-through-a-reduction-in-body-weight
#9
José Espinosa, José E Granados, Francisco J Cano-Manuel, Jorge R López-Olvera, Arián Ráez-Bravo, Diego Romero, Ramón C Soriguer, Jesús M Pérez, Paulino Fandos
Normal development of the ovarian cycle is a key factor in ensuring female reproductive success. Sarcoptes scabiei has been shown to induce changes in host physiology, although the effects of this mite on the female reproductive cycle are still unknown. In an attempt to clarify this issue, the number of ovarian structures (primary follicles, secondary follicles, Graaf follicles, corpus luteum and corpus albicans) in female Iberian ibex (Capra pyrenaica) affected by sarcoptic mange was explored by histological analysis of samples taken from 102 females selectively harvested in the Sierra Nevada Natural Space, southern Spain...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28806694/what-can-neuronal-populations-tell-us-about-cognition
#10
REVIEW
Iñigo Arandia-Romero, Ramon Nogueira, Gabriela Mochol, Rubén Moreno-Bote
Nowadays, it is possible to record the activity of hundreds of cells at the same time in behaving animals. However, these data are often treated and analyzed as if they consisted of many independently recorded neurons. How can neuronal populations be uniquely used to learn about cognition? We describe recent work that shows that populations of simultaneously recorded neurons are fundamental to understand the basis of decision-making, including processes such as ongoing deliberations and decision confidence, which generally fall outside the reach of single-cell analysis...
August 11, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28804858/effect-of-feed-restriction-on-intake-of-moringa-oleifera-and-leucaena-leucocephala-and-growth-performance-of-rabbits
#11
R Santos-Ricalde, E Gutiérrez-Ruiz, W Novelo-Ucan, P Martinez-Romero, J Segura-Correa
Two experiments were conducted to evaluate the effect of feed restriction on intake of Moringa oleifera (MO) or Leucaena leucocephala (LL) and growth of rabbits. In experiment one, 45 rabbits (male and female) weighing 1.18 ± 0.15 kg were used. They were randomly distributed to three feed restriction treatments (20, 30, and 40%) with 15 rabbits each (9 females and 6 males) and they were offered M. oleifera (MO) ad libitum. In experiment two, 45 growing male rabbits weighing 0.63 ± 0.113 kg were used...
August 13, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28804253/effect-of-microbial-activity-on-penetrometer-resistance-and-elastic-modulus-of-soil-at-different-temperatures
#12
W Gao, V Muñoz-Romero, T Ren, R W Ashton, M Morin, I M Clark, D S Powlson, W R Whalley
We explore the effect of microbial activity stimulated by root exudates on the penetrometer resistance of soil and its elastic modulus. This is important because it is a measure of the mechanical strength of soil and it correlates closely with the rate of elongation of roots. A sandy soil was incubated with a synthetic root exudate at different temperatures, for different lengths of time and with selective suppression of either fungi or bacteria. The shape of the temperature response of penetrometer resistance in soil incubated with synthetic exudate was typical of a poikilothermic temperature response...
July 2017: European Journal of Soil Science
https://www.readbyqxmd.com/read/28803788/central-nervous-system-development-related-micrornas-levels-increase-in-the-serum-of-gestational-diabetic-women-during-the-first-trimester-of-pregnancy
#13
M Lamadrid-Romero, K H Solís, M S Cruz-Reséndiz, J E Pérez, N F Díaz, H Flores-Herrera, G García-López, O Perichart, E Reyes-Muñoz, F Arenas-Huertero, P Eguía-Aguilar, A Molina-Hernández
MicroRNAs are heterochronic molecules important during brain development, which could be altered by gestational diabetes mellitus (GDM). To explore these molecules in maternal serum, we performed an RT-qPCR analysis. Our results revealed the heterochronic character of some neural development-related microRNA in serum samples of pregnant women. In relation to the first trimester, higher levels of miR-183-5p, -200b-3p, and -125-5p in the second trimester, and higher levels of miR-137 in the third trimester, were found...
August 10, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28802917/aerobic-exercise-in-adolescence-results-in-an-increase-of-neuronal-and-non-neuronal-cells-and-in-mtor-overexpression-in-the-cerebral-cortex-of-rats
#14
Angélica Begatti Victorino, Fernando Tadeu Serra, Pâmella Pimentel Piñero, Alexandre Aparecido de Almeida, Glauber Menezes Lopim, Ivair Matias Junior, Helio Rubens Machado, Roberto Lent, Francisco Romero Cabral, Fernando Gomez-Pinilla, Ricardo Mario Arida, Sérgio Gomes da Silva
Better cognitive performance and greater cortical and hippocampal volume have been observed in individuals who undertook aerobic exercise during childhood and adolescence. One possible explanation for these beneficial effects is that juvenile physical exercise enables better neural development and hence more cells and neuronal circuitries. It is probable that such effects occur through intracellular signaling proteins associated with cell growth, proliferation and survival. Based on this information, we evaluated the number of neuronal and non-neuronal cells using isotropic fractionation and the expression and activation of intracellular proteins (ERK, CREB Akt, mTOR and p70S6K) in the cerebral cortex and hippocampal formation of the rats submitted to a physical exercise program on a treadmill during adolescence...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28802862/microrna-21-expression-in-oligodendrocytes-and-correlation-with-low-myelin-mrnas-in-depression-and-alcoholism
#15
José Javier Miguel-Hidalgo, Katherine O Hall, Hannah Bonner, Anna M Roller, Maryam Syed, Casey J Park, Jana P Ball, Marc E Rothenberg, Craig A Stockmeier, Damian G Romero
MiR-21 is a microRNA implicated in cancer, development, and cardiovascular diseases and expressed in the central nervous system (CNS), especially after injury. However, the cellular expression of miR-21 in the adult CNS has not been clearly established either in mice or human subjects, while its alteration in psychiatric disorders is unknown. MiR-21 expression was characterized in reporter mice expressing β-galactosidase (LacZ) under the endogenous miR-21 promoter (miR-21/LacZ). Brain co-localization of miR-21/LacZ with specific neural markers was examined by double immunofluorescence in reporter mice, while extent of immunostaining for myelin basic protein and PDGFRα was determined in miR-21 knockout and wild-type mice...
August 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28802820/attenuated-psychotic-symptoms-in-children-and-adolescent-offspring-of-patients-with-schizophrenia
#16
Ana Noguera, Josefina Castro-Fornieles, Soledad Romero, Elena de la Serna, Gisela Sugranyes, Vanessa Sánchez-Gistau, Dolores Moreno, Covadonga M Díaz-Caneja, Jessica Merchán-Naranjo, Cloe Llorente, Inmaculada Baeza
No abstract text is available yet for this article.
August 9, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28802155/energy-distribution-of-the-neutron-flux-measurements-at-the-chilean-reactor-rech-1-using-multi-foil-neutron-activation-and-the-expectation-maximization-unfolding-algorithm
#17
F Molina, P Aguilera, J Romero-Barrientos, H F Arellano, J Agramunt, J Medel, J R Morales, M Zambra
We present a methodology to obtain the energy distribution of the neutron flux of an experimental nuclear reactor, using multi-foil activation measurements and the Expectation Maximization unfolding algorithm, which is presented as an alternative to well known unfolding methods such as GRAVEL. Self-shielding flux corrections for energy bin groups were obtained using MCNP6 Monte Carlo simulations. We have made studies at the at the Dry Tube of RECH-1 obtaining fluxes of 1.5(4)×10(13)cm(-2)s(-1) for the thermal neutron energy region, 1...
August 4, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28801207/crediblemeds-org-what-does-it-offer
#18
REVIEW
Raymond L Woosley, Kristin Black, C William Heise, Klaus Romero
Since the 1990s, when numerous non-cardiac drugs were first recognized to have the potential to prolong the QT interval and cause torsades de pointes (TdP), clinicians, drug regulators, drug developers, and clinical investigators have become aware of the complexities of assessing evidence and determining TdP causality for the many drugs being marketed or under development. To facilitate better understanding, the Arizona Center for Education and Research on Therapeutics, known as AZCERT, has developed the CredibleMeds...
August 1, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28801083/halsted-s-see-one-do-one-and-teach-one-versus-peyton-s-four-step-approach-a-randomized-trial-for-training-of-laparoscopic-suturing-and-knot-tying
#19
Philipp Romero, Patrick Gu Nther, Karl-Friedrich Kowalewski, Mirco Friedrich, Mona W Schmidt, Sarah M Trent, Javier R De La Garza, Beat P Mu Ller-Stich, Felix Nickel
BACKGROUND: This study aimed to compare the effectiveness of Halsted's method "see one, do one, and teach one" with Peyton's Four-Step Approach for teaching intracorporal suturing and knot tying (ICKT). METHODS: Laparoscopically naïve medical students (n = 60) were randomized to teaching of ICKT with either Halsted's (n = 30) or Peyton's method (n = 30) for 60 minutes. Each student's first 3 and final sutures were evaluated using Objective Structured Assessment of Technical Skills (OSATS), procedural implementation, knot quality, total time, and suture placement accuracy...
August 8, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28800772/endurance-training-lowers-ribosome-density-despite-increasing-ribosome-biogenesis-markers-in-rodent-skeletal-muscle
#20
Matthew A Romero, C Brooks Mobley, Melissa A Linden, Grace Margaret-Eleanor Meers, Jeffrey S Martin, Kaelin C Young, R Scott Rector, Michael D Roberts
OBJECTIVE: The purpose of this study was to examine if: (a) high sugar/high fat Western diet (WD)-feeding affects skeletal muscle ribosome biogenesis markers in hyperphagic, diabetic-prone Otsuka Long-Evans Tokushima Fatty (OLETF) rats, and (b) 12 weeks of treadmill training rescued potential detriments that WD feeding exerted on these markers. METHODS: Eight week-old male OLETF rats were fed a low-fat control diet (O-CON, n = 10) or high/sucrose/cholesterol Western diet (WD)...
August 11, 2017: BMC Research Notes
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