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https://www.readbyqxmd.com/read/28339937/uterine-artery-leptin-receptors-during-the-ovarian-cycle-and-pregnancy-regulate-angiogenesis-in-ovine-uterine-artery-endothelial-cells
#1
Vladimir E Vargas, Rosalina Villalon Landeros, Gladys E Lopez, Jing Zheng, Ronald R Magness
Leptin regulates body weight, reproductive functions, blood pressure, endothelial function, and fetoplacental angiogenesis. Compared to the luteal phase, the follicular phase and pregnancy are physiological states of elevated estrogen, angiogenesis, and uterine blood flow (UBF). Little is known concerning leptin and its receptors (OB-R) for regulating uterine artery (UA) angiogenesis. We : 1) Ex vivo expression of OB-R in UA endothelium (UAendo) and UA vascular smooth muscle (UAvsm) is elevated in pregnant vs...
March 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28333510/comparing-treatments-for-children-with-adhd-and-word-reading-difficulties-a-randomized-clinical-trial
#2
Leanne Tamm, Carolyn A Denton, Jeffery N Epstein, Christopher Schatschneider, Heather Taylor, L Eugene Arnold, Oscar Bukstein, Julia Anixt, Anson Koshy, Nicholas C Newman, Jan Maltinsky, Patricia Brinson, Richard E A Loren, Mary R Prasad, Linda Ewing-Cobbs, Aaron Vaughn
OBJECTIVE: This trial compared attention-deficit/hyperactivity disorder (ADHD) treatment alone, intensive reading intervention alone, and their combination for children with ADHD and word reading difficulties and disabilities (RD). METHOD: Children (n = 216; predominantly African American males) in Grades 2-5 with ADHD and word reading/decoding deficits were randomized to ADHD treatment (medication + parent training), reading treatment (reading instruction), or combined ADHD + reading treatment...
March 23, 2017: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/28332740/ultrasound-during-mid-gestation-agreement-with-physical-foetal-and-placental-measurements-and-use-in-predicting-gestational-age-in-sheep
#3
A K Jones, R E Gately, K K McFadden, M L Hoffman, S M Pillai, S A Zinn, K E Govoni, S A Reed
To determine the effects of poor maternal nutrition and litter size on foetal growth during mid-gestation, pregnant ewes (n = 82) were fed 100%, 60% or 140% of NRC TDN beginning at day 30.2 ± 0.2 of gestation. Transabdominal ultrasound was performed weekly between day 46.0 ± 0.4 and 86.0 ± 0.7 to monitor foetal heart width (HW), umbilical diameter (UMB), rib width (RW) and placentome outer (OD) and inner diameter (ID). Data were analysed with repeated-measures using the mixed procedure for effects of maternal diet, litter size and gestation, and equations predictive of gestational age were generated using the regression procedure...
March 23, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28328198/all-printable-zno-quantum-dots-graphene-van-der-waals-heterostructures-for-ultrasensitive-detection-of-ultraviolet-light
#4
Maogang Gong, Qingfeng Liu, Brent Cook, Bhupal Kattel, Ti Wang, Wai-Lun Chan, Dan Ewing, Matthew Casper, Alex Stramel, Judy Z Wu
In ZnO quantum dot/graphene heterojunction photodetectors, fabricated by printing quantum dots (QDs) directly on the graphene field-effect transistor (GFET) channel, the combination of the strong quantum confinement in ZnO QDs and the high charge mobility in graphene allows extraordinary quantum efficiency (or photoconductive gain) in visible-blind ultraviolet (UV) detection. Key to the high performance is a clean van der Waals interface to facilitate an efficient charge transfer from ZnO QDs to graphene upon UV illumination...
March 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28328155/does-dynorphin-play-a-role-in-the-onset-of-puberty-in-female-sheep
#5
J A Lopez, M N Bedenbaugh, R B McCosh, P W Weems, L J Meadows, B Wisman, L M Coolen, R L Goodman, S M Hileman
Puberty onset involves increased gonadotrophin-release (GnRH) release as a result of decreased sensitivity to oestrogen (E2 )-negative feedback. Because GnRH neurones lack E2 receptor α, this pathway must contain interneurones. One likely candidate is KNDy neurones (kisspeptin, neurokinin B, dynorphin). The overarching hypothesis of the present study was that the prepubertal hiatus in luteinising hormone (LH) release involves reduced kisspeptin and/or heightened dynorphin input. We first tested the specific hypothesis that E2 would reduce kisspeptin-immunopositive cell numbers and increase dynorphin-immunopositive cell numbers...
December 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28326632/reproductive-performance-of-postpartum-ewes-treated-with-insulin-or-progesterone-hormones-in-association-with-ram-effect
#6
J C Ferreira-Silva, Srl Basto, F Tenório Filho, M T Moura, M L Silva Filho, Mal Oliveira
The reproductive performance of postpartum Santa Inês (SI) and Morada Nova (MN) ewes treated with insulin or progesterone hormones in association with ram effect was evaluated. Ewes from SI (n = 69) and MN (n = 69) breeds were randomly allocated to three groups of each breed (T1-ram effect only; T2-ram effect + insulin; T3-ram effect + progesterone). Progesterone concentrations (ηg/ml; mean ± SD) before and after introduction of rams (n = 6) were 0.51 ± 0.22 and 3.78 ± 0.68 (T1), 0.65 ± 0...
March 22, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28325734/does-maternal-fetal-transfer-of-creatine-occur-in-pregnant-sheep
#7
Syed Baharom, Robert De Matteo, Stacey Ellery, Paul Della Gatta, Clinton R Bruce, Greg M Kowalski, Nadia Hale, Hayley Dickinson, Richard Harding, David Walker, Rodney J Snow
Our aim was to determine the disposition of creatine in ovine pregnancy, and whether creatine is transferred across the placenta from mother to fetus. Pregnant ewes received either: (i) a continuous intravenous infusion of creatine monohydrate or saline from 122 to 131 days gestation, with maternal and fetal arterial blood and amniotic fluid samples collected daily for creatine analysis and fetal tissues collected at necropsy at 133 days for analysis of creatine content, or; (ii) a single systemic bolus injection of (13)C labelled creatine monohydrate at 130 days of gestation, with maternal and fetal arterial blood, uterine vein blood and amniotic fluid samples collected prior to, and for 4 hours post injection and analysed for creatine, creatine isotopic enrichment, and guanidinoacetic acid (GAA, precursor of creatine) concentrations...
March 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28324006/effects-of-season-and-estradiol-on-kndy-neuron-peptides-colocalization-with-d2-dopamine-receptors-and-dopaminergic-inputs-in-the-ewe
#8
Peyton Weems, Jeremy Smith, Iain J Clarke, Lique M Coolen, Robert L Goodman, Michael N Lehman
Seasonal reproduction in sheep is primarily due to a dramatic increase in the ability of estradiol (E2) to inhibit the pulsatile secretion of gonadotropin-releasing hormone (GnRH) during the non-breeding season (anestrus). Recent findings suggest that KNDy (kisspeptin/neurokinin B/dynorphin) neurons of the arcuate nucleus (ARC) play a key role in conveying this negative feedback influence, with dopaminergic projections from the retrochiasmatic area acting upon KNDy cells to decrease kisspeptin release and thus inhibit GnRH pulses...
January 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28322640/experiences-of-daily-weighing-among-successful-weight-loss-individuals-during-a-12-month-weight-loss-study
#9
Y Zheng, M A Terry, C A Danford, L J Ewing, S M Sereika, R W Goode, A Mori, L E Burke
The purpose of the study was to describe participants' experience of daily weighing and to explore factors influencing adherence to daily weighing among individuals who were successful in losing weight during a behavioral weight loss intervention. Participants completed a 12-month weight loss intervention study that included daily self-weighing using a Wi-Fi scale. Individuals were eligible to participate regardless of their frequency of self-weighing. The sample ( N = 30) was predominantly female (83.3%) and White (83...
December 1, 2016: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28322599/dissolvit-an-in-vitro-method-for-simulating-the-dissolution-and-absorption-of-inhaled-dry-powder-drugs-in-the-lungs
#10
Per Gerde, Maria Malmlöf, Lina Havsborn, Carl-Olof Sjöberg, Pär Ewing, Stefan Eirefelt, Katarina Ekelund
The main purpose of this work was to develop an in vitro method for simulating the dissolution and absorption of inhaled dry powder drugs that also mimics systemic pharmacokinetic data. A second purpose was to evaluate this method. DissolvIt(®) was developed as a simulation of the air-blood barrier of the upper airways, constituting: "airborne" particles deposited on a glass cover slip, a mucus simulant, a polycarbonate (basal) membrane, and a pumped albumin buffer simulating the pulmonary blood flow. The PreciseInhale(®) exposure system was used to aerosolize and deposit test formulations onto cover slips...
February 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28322041/printable-transfer-free-and-wafer-size-mos2-graphene-van-der-waals-heterostructures-for-high-performance-photodetection
#11
Qingfeng Liu, Brent Cook, Maogang Gong, Youpin Gong, Ewing Dan, Matthew Casper, Alex Stramel, Judy Z Wu
Two-dimensional (2D) MoS2/graphene van der Waals heterostructures integrate the superior light-solid interaction in MoS2 and charge mobility in graphene for high-performance optoelectronic devices. Key to the device performance lies in a clean MoS2/graphene interface to facilitate efficient transfer of photo-generated charges. Here we report a printable and transfer-free process for fabrication of wafer-size MoS2/graphene van der Waals heterostructures obtained using a metal-free-grown graphene, followed by low-temperature growth of MoS2 from the printed thin film of ammonium thiomolybdate on graphene...
March 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28321815/immune-therapy-for-sarcomas
#12
Peter M Anderson
Absolute lymphocyte count (ALC) recovery rapidly occurring at 14 days after start of chemotherapy for osteosarcoma and Ewing sarcoma is a good prognostic factor. Conversely, lymphopenia is associated with significantly decreased sarcoma survival. Clearly, the immune system can contribute towards better survival from sarcoma. This chapter will describe treatment and host factors that influence immune function and how effective local control and systemic interventions of sarcoma therapy can cause inflammation and/or immune suppression but are currently the standard of care...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28321500/aptahistochemistry-in-diagnostic-pathology-technical-scrutiny-and-feasibility
#13
REVIEW
Bakhtiar A Bukari, Marimuthu Citartan, Ewe Seng Ch'ng, Mawethu P Bilibana, Timofey Rozhdestvensky, Thean-Hock Tang
Antibodies have been the workhorse for diagnostic immunohistochemistry to specifically interrogate the expression of certain protein to aid in histopathological diagnosis. This review introduces another dimension of histochemistry that employs aptamers as the core tool, the so-called aptahistochemistry. Aptamers are an emerging class of molecular recognition elements that could recapitulate the roles of antibodies. The many advantageous properties of aptamers suited for this diagnostic platform are scrutinized...
March 20, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28321472/feasibility-and-benefits-of-the-ewe-as-a-model-for-vaginal-surgery-training
#14
Yohan Kerbage, Géraldine Giraudet, Chrystèle Rubod, Charles Garabedian, Géraldine Rivaux, Michel Cosson
INTRODUCTION AND HYPOTHESIS: The objective was to evaluate the ewe as an animal model for teaching and training in vaginal surgery. METHODS: Twenty-nine postgraduate surgeons attended a training course on vaginal prolapse surgery. After a review of human and sheep anatomy, the participants performed transvaginal meshes, vaginal hysterectomy, SSLF (Richter), and OAS repair in ewes and human cadavers. Participants completed questionnaires on the whole course. RESULTS: Questionnaires showed the significant superiority of ewes over human cadavers for all items evaluated regarding surgical dissections...
March 20, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28319320/the-endochondral-bone-protein-chm1-sustains-an-undifferentiated-invasive-phenotype-promoting-lung-metastasis-in-ewing-sarcoma
#15
Kristina von Heyking, Julia Calzada-Wack, Stefanie Göllner, Frauke Neff, Oxana Schmidt, Tim Hensel, David Schirmer, Annette Fasan, Irene Esposito, Carsten Müller-Tidow, Poul H Sorensen, Stefan Burdach, Günther H S Richter
Ewing sarcomas (ES) are highly malignant, osteolytic bone or soft tissue tumors, which are characterized by EWS-ETS translocations and early metastasis to lung and bone. In this study, we investigated the role of the BRICHOS chaperone domain-containing endochondral bone protein chondromodulin I (CHM1) in ES pathogenesis. CHM1 is significantly over-expressed in ES, and chromosome immunoprecipitation (ChIP) data demonstrate CHM1 to be directly bound by an EWS-ETS translocation, EWS-FLI1. Using RNA interference we observed that CHM1 promoted chondrogenic differentiation capacity of ES cells but decreased the expression of osteolytic genes such as HIF1A, IL6, JAG1 and VEGF...
March 20, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28319311/zinc-regulates-chemical-transmitter-storage-in-nanometer-vesicles-and-exocytosis-dynamics-as-measured-by-amperometry
#16
Lin Ren, Masoumeh Dowlatshahi Pour, Soodabeh Majdi, Xianchan Li, Per Malmberg, Andrew G Ewing
We applied electrochemical techniques with nano-tip electrodes to show that micromolar concentrations of zinc not only trigger changes in the dynamics of exocytosis, but also vesicle content in a model cell line. The vesicle catecholamine content in PC12 cells is significantly decreased after 100 μm zinc treatment, but, catecholamine release during exocytosis remains nearly the same. This contrasts with the number of molecules stored in the exocytosis vesicles, which decreases, and we find that the amount of catecholamine released from zinc-treated cells reaches nearly 100 % content expelled...
March 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28319067/the-histone-demethylase-kdm3a-and-its-downstream-target-mcam-promote-ewing-sarcoma-cell-migration-and-metastasis
#17
M Sechler, J K Parrish, D K Birks, P Jedlicka
Ewing Sarcoma is the second most common solid pediatric malignant neoplasm of bone and soft tissue. Driven by EWS/Ets, or rarely variant, oncogenic fusions, Ewing Sarcoma is a biologically and clinically aggressive disease with a high propensity for metastasis. However, the mechanisms underpinning Ewing Sarcoma metastasis are currently not well understood. In the present study, we identify and characterize a novel metastasis-promotional pathway in Ewing Sarcoma, involving the histone demethylase KDM3A, previously identified by our laboratory as a new cancer-promoting gene in this disease...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28318592/caprine-and-ovine-greek-dairy-products-the-official-german-method-generates-false-positive-results-due-to-%C3%AE%C2%BA-casein-gene-polymorphism
#18
V Tsartsianidou, D Triantafillidou, N Karaiskou, P Tarantili, G Triantafillidis, E Georgakis, A Triantafyllidis
Caseins are widely used for species identification of dairy products. Isoelectric focusing (IEF) of para-κ-casein peptide is used as the official German method for the differentiation between caprine (isoform A) and ovine (isoform B) dairy products, based on their different isoelectric points. The discrimination between Greek goat and ewe dairy products using IEF has, however, been shown to be problematic because of the existence of the ewe isoform in milk from Greek indigenous dairy goats. This could be due to nucleotide polymorphisms within the goat κ-casein gene of Greek indigenous breeds, which alter the isoelectric point of the para-κ-casein peptide and lead to false positive results...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28318586/prediction-and-repeatability-of-milk-coagulation-properties-and-curd-firming-modeling-parameters-of-ovine-milk-using-fourier-transform-infrared-spectroscopy-and-bayesian-models
#19
A Ferragina, C Cipolat-Gotet, A Cecchinato, M Pazzola, M L Dettori, G M Vacca, G Bittante
The aim of this study was to apply Bayesian models to the Fourier-transform infrared spectroscopy spectra of individual sheep milk samples to derive calibration equations to predict traditional and modeled milk coagulation properties (MCP), and to assess the repeatability of MCP measures and their predictions. Data consisted of 1,002 individual milk samples collected from Sarda ewes reared in 22 farms in the region of Sardinia (Italy) for which MCP and modeled curd-firming parameters were available. Two milk samples were taken from 87 ewes and analyzed with the aim of estimating repeatability, whereas a single sample was taken from the other 915 ewes...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28318025/maternal-chronic-hypoxia-increases-expression-of-genes-regulating-lung-liquid-movement-and-surfactant-maturation-in-male-fetuses-in-late-gestation
#20
Erin V McGillick, Sandra Orgeig, Beth J Allison, Kirsty L Brain, Youguo Niu, Nozomi Itani, Katie L Skeffington, Andrew D Kane, Emilio A Herrera, Dino A Giussani, Janna L Morrison
Chronic fetal hypoxaemia is a common pregnancy complication that may arise from maternal, placental and/or fetal factors. Respiratory outcome of the infant at birth likely depends on the duration, timing and severity of the hypoxaemic insult. We have isolated the effect of maternal chronic hypoxia (MCH) for a month in late gestation on fetal lung development. Pregnant ewes were exposed to normoxia (21% O2 ) or hypoxia (10% O2 ) from 105-138 d gestation (term ∼145 d). At 138 d, gene expression in fetal lung tissue was determined by qRT-PCR...
March 20, 2017: Journal of Physiology
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