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https://www.readbyqxmd.com/read/27915452/chronic-enalapril-treatment-increases-transient-outward-potassium-current-in-cardiomyocytes-isolated-from-right-ventricle-of-spontaneously-hypertensive-rats
#1
Luiz Fernando Rodrigues Junior, Ana Carolina de Azevedo Carvalho, Enildo Broetto Pimentel, José Geraldo Mill, José Hamilton Matheus Nascimento
It has been well established that chronic pressure overload resulting from hypertension leads to ventricular hypertrophy and electrophysiological remodeling. The transient outward potassium current (I to) reduction described in hypertensive animals delays ventricular repolarization, leading to complex ventricular arrhythmias and sudden death. Antihypertensive drugs, as angiotensin-converting enzyme inhibitors (ACEi), can restore I to and reduce the incidence of arrhythmic events. The purpose of this study was to evaluate the differential effects of long-term treatment with ACEi or direct-acting smooth muscle relaxant on the I to of left and right ventricle myocytes of spontaneously hypertensive rats (SHR)...
December 3, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27915439/presence-of-ureaplasma-diversum-in-the-genital-tracts-of-female-dairy-cattle-in-mato-grosso-state-brazil
#2
Jaqueline B Azevedo, Gustavo S Silva, Priscylla S Rocha, Letícia C Pitchenin, Valéria Dutra, Luciano Nakazato, Anderson Castro Soares de Oliveira, Caroline A Pescador
Ureaplasma diversum infection in bovine females may result in various reproductive problems, including granular vulvovaginitis, abortion, weak calves, salpingitis, and spontaneous abortion. The presence of U. diversum in a dairy bovine population from midwestern Brazil has not been established. The aim of this study was to determine whether U. diversum was present in dairy cattle from midwestern Brazil using polymerase chain reaction (PCR). Vulvovaginal mucus was analyzed from 203 cows located in six municipalities in the north region of Mato Grosso State, Brazil...
December 3, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27915327/posterior-retinal-hemorrhages-during-retcam-examination-for-retinopathy-of-prematurity
#3
Parijat Chandra, Rajvardhan Azad
BACKGROUND: Retcam-assisted retinopathy of prematurity (ROP) screening is a commonly used safe examination procedure. CASE CHARACTERISTICS: A preterm baby born at 32 weeks gestation age developed extensive posterior retinal hemorrhages during retinal imaging using the RetCam. OUTCOME: Retinal hemorrhages spontaneously resolved. MESSAGE: As tele screening is becomes more popular, proper training for Retcam usage is essential...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915270/chemoprevention-of-spontaneous-ovarian-cancer-in-the-domestic-hen
#4
E H Mocka, R A Stern, O J Fletcher, K E Anderson, J N Petitte, P E Mozdziak
The hen is an attractive animal model for in vivo testing of agents that thwart ovarian carcinogenesis because ovarian cancer in the domestic hen features clinical and molecular alterations that are similar to ovarian cancer in humans, including a high incidence of p53 mutations. The objective of the study was to test the potential ovarian cancer chemopreventive effect of the p53 stabilizing compound CP-31398 on hens that spontaneously present the ovarian cancer phenotype. Beginning at 79 wk of age, 576 egg-laying hens (Gallus domesticus) were randomized to diets containing different amounts of CP-31398 for 94 wk, 5 d, comprising a control group (C) (n = 144), which was fed a diet containing 0 ppm (mg/kg) of CP-31398; a low-dose treatment (LDT) group (n = 144), which was fed a diet containing 100 ppm of CP-31398; a moderate-dose treatment (MDT) group (n = 144) which was fed a diet containing 200 ppm of CP-31398; and a high-dose treatment (HDT) group (n = 144), which was fed a diet containing 300 ppm of CP-31398...
December 3, 2016: Poultry Science
https://www.readbyqxmd.com/read/27915209/development-of-neural-population-activity-towards-self-organized-criticality
#5
Yuichiro Yada, Takeshi Mita, Akihiro Sanada, Ryuichi Yano, Ryohei Kanzaki, Douglas J Bakkum, Andreas Hierlemann, Hirokazu Takahashi
Self-organized criticality (SoC), a spontaneous dynamic state established and maintained in networks of moderate complexity, is a universal characteristic of neural systems. Such systems produce cascades of spontaneous activity that are typically characterized by power-law distributions and rich, stable spatiotemporal patterns (i.e., neuronal avalanches). Since the dynamics of the critical state confer advantages in information processing within neuronal networks, it is of great interest to determine how criticality emerges during development...
November 30, 2016: Neuroscience
https://www.readbyqxmd.com/read/27915145/co-adsorption-of-perfluorooctane-sulfonate-and-phosphate-on-boehmite-influence-of-temperature-phosphate-initial-concentration-and-ph
#6
Jin Qian, Mengmeng Shen, Peifang Wang, Chao Wang, Jing Hu, Jun Hou, Yanhui Ao, Hao Zheng, Kun Li, Jingjing Liu
The co-presence of perfluorooctane sulfonate (PFOS) and phosphate in wastewater of various industries has been detected. Removing PFOS and phosphate simultaneously before discharging sewage into natural water can decrease effectively the environmental risk caused by the combined pollution of PFOS and phosphate. In this study, laboratory batch experiments were conducted for investigating the co-adsorption of PFOS and phosphate on boehmite and the influences of temperature, phosphate initial concentration and pH on the co-adsorption...
December 1, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27915132/dissociating-processes-underlying-level-1-visual-perspective-taking-in-adults
#7
Andrew R Todd, C Daryl Cameron, Austin J Simpson
Although reasoning about other people's mental states has typically been thought to require effortful deliberation, evidence from indirect measures suggests that people may implicitly track others' perspectives, spontaneously calculating what they see and know. We used a process-dissociation approach to investigate the unique contributions of automatic and controlled processes to level-1 visual perspective taking in adults. In Experiment 1, imposing time pressure reduced the ability to exert control over one's responses, but it left automatic processing of a target's perspective unchanged...
December 1, 2016: Cognition
https://www.readbyqxmd.com/read/27915043/involvement-of-bdnf-trkb-signaling-in-the-effect-of-diphenyl-diselenide-on-motor-function-in-a-parkinson-s-disease-rat-model
#8
Tuane Bazanella Sampaio, Simone Pinton, Juliana Trevisan da Rocha, Bibiana Mozzaquatro Gai, Cristina Wayne Nogueira
Parkinson's disease is a progressive neurodegenerative disorder characterized by degeneration of nigrostriatal dopaminergic neurons. Diphenyl diselenide [(PhSe)2] is a compound with pharmacological proprieties, such as antidepressant and neuroprotective. Therefore, this study investigated whether (PhSe)2 reverses motor impairment and neurochemical alterations in a model of Parkinson's disease induced by 6-hydroxydopamine (6-OHDA) in rats. For this, male Wistar rats received 20μg/3μl of 6-OHDA or vehicle into the right striatum...
November 30, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27914982/nanotopography-controls-cell-cycle-changes-involved-with-skeletal-stem-cell-self-renewal-and-multipotency
#9
Louisa C Y Lee, Nikolaj Gadegaard, María C de Andrés, Lesley-Anne Turner, Karl V Burgess, Stephen J Yarwood, Julia Wells, Manuel Salmeron-Sanchez, Dominic Meek, Richard O C Oreffo, Matthew J Dalby
In culture isolated bone marrow mesenchymal stem cells (more precisely termed skeletal stem cells, SSCs) spontaneously differentiate into fibroblasts, preventing the growth of large numbers of multipotent SSCs for use in regenerative medicine. However, the mechanisms that regulate the expansion of SSCs, while maintaining multipotency and preventing fibroblastic differentiation are poorly understood. Major hurdles to understanding how the maintenance of SSCs is regulated are (a) SSCs isolated from bone marrow are heterogeneous populations with different proliferative characteristics and (b) a lack of tools to investigate SSC number expansion and multipotency...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914623/efficacy-and-safety-of-omalizumab-in-a-patient-with-chronic-spontaneous-urticaria-and-active-hepatitis-b-virus-infection
#10
P Chicharro, P Rodríguez-Jiménez, D de Argila
No abstract text is available yet for this article.
November 30, 2016: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/27914269/targeted-hydroxyethyl-starch-prodrug-for-inhibiting-the-growth-and-metastasis-of-prostate-cancer
#11
Kaidong Zhao, Di Li, Weiguo Xu, Jianxun Ding, Weiqian Jiang, Mingqiang Li, Chunxi Wang, Xuesi Chen
Prostate cancer is one of the most prevalent malignancies among men. Although chemotherapy has been an effective therapeutic approach for treating metastatic prostate cancer, serious undesired side effects have hampered its wide application clinically. In this work, a pH-responsive LHRH-conjugated hydroxyethyl starch-doxorubicin (HES-DOX/LHRH) prodrug was facilely synthesized by conjugating oxidized HES (HES-CHO) with DOX and LHRH through an acid-sensitive Schiff base bond. The resulting prodrug spontaneously self-assembled into nanoscopic micelle with a radius of about 55 nm in an aqueous environment...
November 23, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914154/short-and-long-term-efficacy-of-laparoscopic-ovarian-diathermy-in-women-with-polycystic-ovary-syndrome
#12
Rita Luz, Joana Barros, Ana Aguiar, Cátia Rodrigues, Ana Paula Soares, Joaquim Nunes, Sandra Sousa, Carlos Calhaz-Jorge
INTRODUCTION: Polycystic ovary syndrome is the most frequent cause of anovulatory infertility and management involves a multistep approach. Laparoscopic ovarian diathermy is accepted as a second-line treatment of patients who failed to respond to clomiphene citrate. The aims of this study were to determine the efficacy of this technique at short and long-term and to perform an analysis of predictive factors of spontaneous pregnancy. MATERIAL AND METHODS: This retrospective study involved 76 women who underwent laparoscopic ovarian diathermy between 2004 and 2013 in a university hospital...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27913837/hospitalizations-due-to-preventable-adverse-reactions-a-systematic-review
#13
REVIEW
Nidhi S Patel, Tejas K Patel, Parvati B Patel, Viren N Naik, C B Tripathi
PURPOSE: The study aimed to measure the percentage of preventable adverse drug reactions that lead to the hospitalization (PADRAd) and to explore the heterogeneity in its estimation through subgroup analysis of study characteristics. METHODS: Two investigators independently searched in electronic databases and related bibliography for prospective studies involving PADRAd. We excluded studies investigating medication errors and spontaneous and retrospective reporting...
December 2, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27913798/generalizability-of-the-maximum-proportional-recovery-rule-to-visuospatial-neglect-early-poststroke
#14
Caroline Winters, Erwin E H van Wegen, Andreas Daffertshofer, Gert Kwakkel
Background and objective Proportional recovery of upper-extremity motor function and aphasia after stroke may suggest common mechanisms for spontaneous neurobiological recovery. This study aimed to investigate if the proportional recovery rule also applies to visuospatial neglect (VSN) in right-hemispheric first-ever ischemic stroke patients and explored the possible common underlying mechanisms. Methods Patients with upper-limb paresis and VSN were included. Recovery defined as the change in Letter Cancellation Test (LCT) score at ~8 days and 6 months poststroke...
December 2, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27913646/critical-differences-between-induced-and-spontaneous-mouse-models-of-graves-disease-with-implications-for-antigen-specific-immunotherapy-in-humans
#15
Basil Rapoport, Bianca Banuelos, Holly A Aliesky, Nicole Hartwig Trier, Sandra M McLachlan
Graves' hyperthyroidism, a common autoimmune disease caused by pathogenic autoantibodies to the thyrotropin (TSH) receptor (TSHR), can be treated but not cured. This single autoantigenic target makes Graves' disease a prime candidate for Ag-specific immunotherapy. Previously, in an induced mouse model, injecting TSHR A-subunit protein attenuated hyperthyroidism by diverting pathogenic TSHR Abs to a nonfunctional variety. In this study, we explored the possibility of a similar diversion in a mouse model that spontaneously develops pathogenic TSHR autoantibodies, NOD...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27913592/complexin-mutants-reveal-partial-segregation-between-recycling-pathways-that-drive-evoked-and-spontaneous-neurotransmission
#16
Nadezhda Sabeva, Richard W Cho, Alexander Vasin, Agustin Gonzalez, J Troy Littleton, Maria Bykhovskaia
: Synaptic vesicles fuse at morphological specializations in the presynaptic terminal termed active zones (AZs). Vesicle fusion can occur spontaneously or in response to an action potential. Following fusion, vesicles are retrieved and recycled within nerve terminals. It is still unclear whether vesicles that fuse spontaneously or following evoked release share similar recycling mechanisms. Genetic deletion of the SNARE-binding protein complexin dramatically increases spontaneous fusion, with the protein serving as the synaptic vesicle fusion clamp at Drosophila synapses...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27913534/myelodysplastic-and-myeloproliferative-disorders-of-childhood
#17
Henrik Hasle
Myelodysplastic syndrome (MDS) and myeloproliferative disorders are rare in children; they are divided into low-grade MDS (refractory cytopenia of childhood [RCC]), advanced MDS (refractory anemia with excess blasts in transformation), and juvenile myelomonocytic leukemia (JMML), each with different characteristics and management strategies. Underlying genetic predisposition is recognized in an increasing number of patients. Germ line GATA2 mutation is found in 70% of adolescents with MDS and monosomy 7. It is challenging to distinguish RCC from aplastic anemia, inherited bone marrow failure, and reactive conditions...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913427/intermittent-hypoxia-during-recovery-from-neonatal-hyperoxic-lung-injury-causes-long-term-impairment-of-alveolar-development-a-new-rat-model-of-bpd
#18
Anastasiya Mankouski, Crystal Kantores, Mathew J Wong, Julijana Ivanovska, Amish Jain, Eric J Benner, Stanley N Mason, A Keith Tanswell, Richard L Auten, Robert P Jankov
Bronchopulmonary dysplasia (BPD) is a chronic lung injury characterized by impaired alveologenesis that may persist into adulthood. Rat models of BPD using varying degrees of hyperoxia to produce injury either cause early mortality or spontaneously recover following removal of the inciting stimulus, thus limiting clinical relevance. We sought to refine an established rat model induced by exposure to 60% O2 from birth by following hyperoxia with intermittent hypoxia (IH). Rats exposed from birth to air or 60% O2 until day 14 were recovered in air with or without IH (FiO2 = 0...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27913203/incidence-of-recurrent-intracerebral-hemorrhages-in-a-multiethnic-south-asian-population
#19
Liming Qiu, Trisha Upadhyaya, Angela An Qi See, Yew Poh Ng, Nicolas Kon Kam King
INTRODUCTION: Spontaneous primary intracerebral hemorrhage (ICH) accounts for approximately 25% of all strokes in Singapore. Incidence of recurrent ICH is not well studied, and previous studies have reported inconsistent findings in the rate and risk factors associated with ICH recurrences. We aimed to study the incidence of recurrent ICHs in Singapore and to identify the associated risk factors as well as pattern of ICH recurrence. METHODS: A retrospective review of all consecutive admissions for intracerebral hemorrhage at the National Neuroscience Institute between January 2006 and November 2013 was performed...
November 29, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27913060/outcome-of-pregnancy-and-neonatal-complications-with-anti-tumor-necrosis-factor-%C3%AE-use-in-females-with-immune-mediated-diseases-a-systematic-review-and-meta-analysis
#20
REVIEW
Fukiko Komaki, Yuga Komaki, Dejan Micic, Akio Ido, Atsushi Sakuraba
BACKGROUND: Immune mediated diseases such as rheumatoid arthritis (RA), ankylosing spondylitis (AS), and inflammatory bowel disease (IBD) commonly affect young and adolescent females. Anti-tumor necrosis factor (TNF)-α agents are increasingly used to treat these conditions, but their safety during pregnancy remains unclear. OBJECTIVES: To evaluate the risk of pregnancy related outcomes in patients with various immune mediated diseases treated with anti-TNF-α agents...
November 29, 2016: Journal of Autoimmunity
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