keyword
MENU ▼
Read by QxMD icon Read
search

Ovine

keyword
https://www.readbyqxmd.com/read/29241405/cell-clusters-are-indicative-of-stem-cell-activity-in-the-degenerate-intervertebral-disc-can-their-properties-be-manipulated-to-improve-intrinsic-repair-of-the-disc
#1
Sharon Brown, Ajay Matta, William Mark Erwin, Sally Roberts, Helen H Gruber, Edward N Hanley, Christopher B Little, James Melrose
The aim of this study was to examine the complexity of the stem cell populations in the intervertebral disc (IVD) and understand their role in disc degeneration with a view to determining whether the resident stem cells could be developed for therapeutic purposes to combat IVD degeneration. Stem cells have been isolated from disc and paradiscal tissues including the notochord, annulus fibrosus (AF), nucleus pulposus (NP), cartilaginous endplate (CEP), ligamentum flavum and vertebral body. Resident AF and NP cells are relatively sparsely distributed occuring as single or occasional doublet cells surrounded by an extensive extracellular matrix (ECM)...
December 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29237141/lessons-from-the-barn-to-the-operating-suite-a-comprehensive-review-of-animal-models-for-fetal-surgery
#2
Sandra K Kabagambe, Chelsey J Lee, Laura F Goodman, Y Julia Chen, Melissa A Vanover, Diana L Farmer
The International Fetal Medicine and Surgery Society was created in 1982 and proposed guidelines for fetal interventions that required demonstrations of the safety and feasibility of intended interventions in animal models prior to application in humans. Because of their short gestation and low cost, small animal models are useful in early investigation of fetal strategies. However, owing to the anatomic and physiologic differences between small animals and humans, repeated studies in large animal models are usually needed to facilitate translation to humans...
December 13, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29235113/postnatal-effects-of-intrauterine-treatment-of-the-growth-restricted-ovine-fetus-with-intra-amniotic-insulin-like-growth-factor-1
#3
A M Spiroski, M H Oliver, A L Jaquiery, T C R Prickett, E A Espiner, J E Harding, F H Bloomfield
Placental insufficiency-mediated fetal growth restriction (FGR) is associated with altered postnatal growth and metabolism, which are, in turn, associated with increased risk of adult disease. Intra-amniotic insulin-like growth factor-1 (IGF1) treatment of ovine FGR increases growth rate in late gestation, but the effects on postnatal growth and metabolism are unknown. We investigated the effects of intra-amniotic IGF1 administration to ovine fetuses with uteroplacental embolisation-induced FGR on phenotypic and physiologic characteristics in the two weeks after birth...
December 12, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29233092/heart-rate-variability-after-radiofrequency-ablation-of-epicardial-ganglionated-plexuses-on-the-ovine-left-atrium
#4
Vilius Kviesulaitis, Aras Puodziukynas, Dainius Haroldas Pauza, Vytautas Zabiela, Tomas Kazakevicius, Raimundas Vaitkevicius, Evaldas Diržinauskas, Vytenis Semaška, Antanas Strazdas, Ruta Unikaite, Kristina Rysevaite, Neringa Pauziene, Remigijus Zaliunas
BACKGROUND: Ganglionated plexuses (GP) are terminal parts of cardiac autonomous nervous system (ANS). Radiofrequency ablation (RFA) for atrial fibrillation (AF) possibly affects GP. Changes in heart rate variability (HRV) after RFA can reflect ANS modulation. METHODS: Epicardial RFA of GP on the left atrium (LA) was performed under the general anesthesia in 15 mature Romanov sheep. HRV was used to assess the alterations in autonomic regulation of the heart. A 24 - hour ECG monitoring was performed before the ablation, 2 days after it and at each of the 12 following months...
December 12, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29222545/coefficient-of-friction-between-carboxymethylated-hyaluronic-acid-based-polymer-films-and-the-ocular-surface
#5
Jourdan Colter, Barbara Wirostko, Brittany Coats
Purpose: Hyaluronic acid-based polymer films are emerging as drug-delivery vehicles for local and continuous drug administration to the eye. The highly lubricating hyaluronic acid increases comfort, but displaces films from the eye, reducing drug exposure and efficacy. Previous studies have shown that careful control of the surface interaction of the film with the eye is critical for improved retention. Methods: In this study, the frictional interaction of a carboxymethylated, hyaluronic acid-based polymer (CMHA-S) with and without methylcellulose was quantified against ovine and human sclera at three axial loads (0...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29218858/in-vitro-and-in-vivo-study-of-commercial-calcium-phosphate-cement-hydroset%C3%A2
#6
Niall W Kent, Gordon Blunn, Natalia Karpukhina, Graham Davis, Roberta Ferro de Godoy, Rory M Wilson, Melanie Coathup, Lyris Onwordi, Wen Yu Quak, Robert Hill
The commercial calcium phosphate cement, HydroSet™, was investigated in vitro, studying phase formation, compressive strength and setting time, followed by an ovine in vivo study to measure osseointegration, bone apposition and bone-to-graft contact. The X-ray diffraction and 31 P Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR) results showed the initial formation of octacalcium phosphate and hydroxyapatite at one hour. Over 7 days the octacalcium phosphate transformed to apatite, which was the only crystalline phase of the cement at 28 days...
January 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29208582/bacterial-fungal-parasitological-and-pathological-analyses-of-abortions-in-small-ruminants-from-2012-2016
#7
P Schnydrig, S Vidal, I Brodard, C Frey, H Posthaus, V Perreten, S Rodriguez-Campos
Abortion in small ruminants presents a clinical and economic problem with legal implications regarding animal health and zoonotic risk by some of the abortive pathogens. Several bacteria, fungi and parasites can cause abortion, but cost-orientated routine diagnostics only cover the most relevant epizootic agents. To cover a broad-range of common as well as underdiagnosed abortifacients, we studied 41 ovine and 36 caprine abortions by Stamp's modification of the Ziehl-Neelsen stain, culture for classical and opportunistic abortive agents, real-time PCR for C...
December 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29207291/transcriptome-analysis-of-ovine-granulosa-cells-reveals-differences-between-small-antral-follicles-collected-during-the-follicular-and-luteal-phases
#8
Reza Talebi, Ahmad Ahmadi, Fazlollah Afraz, Julien Sarry, Florence Plisson-Petit, Carine Genêt, Stéphane Fabre
Ovarian follicular growth occurs in both the follicular and luteal phases of the estrous cycle but in very different endocrine contexts. In both phases, many small antral follicles with similar morphologic and histologic characteristics are present within the ovaries as a reserve for the terminal folliculogenesis. However, there are several gaps in our molecular knowledge of the gene expression profiles of small antral follicles in the follicular and luteal phases. The aim of the present study was to use RNA sequencing to compare and analyze the global transcriptional profile of ovine granulosa cells collected from small antral follicles (1-3 mm) either during the follicular or the luteal phase of the estrous cycle, with the hypothesis that they should be differential...
November 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/29199372/comparative-assessment-of-recombinant-and-native-immunogenic-forms-of-fasciola-hepatica-proteins-for-serodiagnosis-of-sheep-fasciolosis
#9
Kobra Mokhtarian, Ahmad Reza Meamar, Majid Khoshmirsafa, Elham Razmjou, Leila Masoori, Majid Khanmohammadi, Lame Akhlaghi, Reza Falak
Laboratory diagnosis of sheep fasciolosis is commonly performed by coprological examinations; however, this method may lead to false negative results during the acute phase of the infection. Furthermore, the poor sensitivity of coprological methods is considered to be a paradox in the chronic phase of the infection. In this study, we compared the immunoreactivity of native and recombinant forms of Fasciola hepatica excretory/secretory antigens and determined their capabilities for the development of F. hepatica-specific immunoassays...
December 4, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29196820/functional-roles-of-agmatinase-during-the-peri-implantation-period-of-pregnancy-in-sheep
#10
Yasser Y Lenis, Mohammed A Elmetwally, Wanjin Tang, Carey Satterfield, Kathrin Dunlap, Guoyao Wu, Fuller W Bazer
This study investigated the effect of agmatine (Agm) in proliferation of ovine trophecdoderm cells (oTr1) as well as the importance of the arginine decarboxylase (ADC) and agmatinase (AGMAT) alternative pathway for synthesis of polyamines in ovine conceptuses during the peri-implantation period of pregnancy. Morpholino antisense oligonucleotides (MAOs) were used to inhibit translation of mRNAs for ODC1 alone, AGMAT alone, and their combination. Rambouillet ewes (N = 50) were assigned randomly to the following treatments on Day 8 of pregnancy: MAO control (n = 10); MAO-ODC1 (n = 8); MAO-ADC (n = 6); MAO-ODC1:MAO-ADC (n = 9); or MAO-ODC1:MAO-AGMAT (n = 9)...
December 2, 2017: Amino Acids
https://www.readbyqxmd.com/read/29191508/in-vivo-performance-of-freeze-dried-decellularized-pulmonary-heart-valve-allo-and-xenografts-orthotopically-implanted-into-juvenile-sheep
#11
Tobias Goecke, Karolina Theodoridis, Igor Tudorache, Anatol Ciubotaru, Serghei Cebotari, Robert Ramm, Klaus Höffler, Samir Sarikouch, Andrés Vásquez-Rivera, Axel Haverich, Willem F Wolkers, Andres Hilfiker
The decellularization of biological tissues decreases immunogenicity, allows repopulation with cells, and may lead to improved long-term performance after implantation. Freeze drying these tissues would ensure off-the-shelf availability, save storage costs, and facilitates easy transport. This study evaluates the in vivo performance of freeze-dried decellularized heart valves in juvenile sheep. TritonX-100 and sodium dodecylsulfate decellularized ovine and porcine pulmonary valves (PV) were freeze-dried in a lyoprotectant sucrose solution...
November 27, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29191414/comparative-anatomy-and-angiography-of-the-cardiac-coronary-venous-system-in-four-species-human-ovine-porcine-and-canine
#12
M-A Genain, A Morlet, M Herrtage, H Muresian, F Anselme, C Latremouille, F Laborde, L Behr, N Borenstein
INTRODUCTION: The coronary arterial system has been the subject of greater investigation than its venous system due to the importance of human coronary artery disease. With the advent of new percutaneous treatments, the anatomy of the coronary venous system has increasing relevancy. We compared the organization of the coronary venous circulation in three species commonly used in research and compared these to normal humans using both macroscopic anatomic and angiographic studies. ANIMALS: The anatomy of five explanted hearts from healthy dogs, pigs, and sheep were studied macroscopically, and 10 explanted hearts per animal species and 10 clinically normal human were examined by angiography...
November 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29190766/developmental-peculiarities-in-placentae-of-ovine-uniparental-conceptuses
#13
Roberta Arena, Federica Zacchini, Paola Toschi, Luca Palazzese, Marta Czernik, Grażyna Ewa Ptak
Genomic imprinting is an epigenetic phenomenon regulating mono-allelic expression of genes depending on their parental origin. Defective genomic imprinting is involved in several placental disorders, such as intrauterine growth restriction and pre-eclampsia. Uniparental embryos, having maternal-only or paternal-only genomes (parthenogenotes [PAR] and androgenotes [AND], respectively), are useful models to study placentation. The aim of this work was to reveal the effect of parental genome (maternal and paternal) on placentation...
2017: PloS One
https://www.readbyqxmd.com/read/29190736/humoral-immune-response-against-two-surface-antigens-of-chlamydia-pecorum-in-vaccinated-and-naturally-infected-sheep
#14
Sankhya Bommana, Evelyn Walker, Marion Desclozeaux, Peter Timms, Adam Polkinghorne
Chlamydia pecorum is a globally recognised livestock pathogen due to the significant clinical and economic impact it poses to livestock producers. Routine serological diagnosis is through a complement fixation test (CFT), which is often criticised for cross-reactivity, poor sensitivity and specificity. Although serology remains the preferred method in veterinary diagnostic laboratories, serological assays based on surface antigens of C. pecorum have not been established until now. In this study, we evaluated the use of two chlamydial recombinant protein antigens (PmpG and MOMP-G) by a direct IgG ELISA method for detection of ovine anti-chlamydial antibodies...
2017: PloS One
https://www.readbyqxmd.com/read/29188680/biomaterials-as-bone-graft-substitutes-for-spine-surgery-from-preclinical-results-to-clinical-study
#15
G Barbanti Bròdano, C Griffoni, A Nataloni, M Manfrini, G Giavaresi, S Bandiera, A Gasbarrini, S Terzi, R Ghermandi, G Tedesco, M Girolami, M Tognon, M Fini
Vertebral fusion is performed in order to stabilize the spine in the presence of degenerative, traumatic or oncological pathologies that alter its stability. The autologous bone, harvested from the patient’s iliac crest or from the lamina during surgery, is still considered the “gold standard” for spine fusion due to its osteogenic, osteoinductive and osteoconductive properties. However, several biological and synthetic bone substitutes have been introduced as alternatives for regenerating bone tissue...
October 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29186380/impact-of-t-cell-mediated-immune-response-on-xenogeneic-heart-valve-transplantation-short-term-success-and-mid-term-failure
#16
Anna C Biermann, Julia Marzi, Eva Brauchle, Maria Schneider, Angela Kornberger, Sherif Abdelaziz, Julian L Wichmann, Christophe T Arendt, Eike Nagel, Kelvin G M Brockbank, Martina Seifert, Katja Schenke-Layland, Ulrich A Stock
OBJECTIVES: Allogeneic frozen cryopreserved heart valves (allografts or homografts) are commonly used in clinical practice. A major obstacle for their application is the limited availability in particular for paediatrics. Allogeneic large animal studies revealed that alternative ice-free cryopreservation (IFC) results in better matrix preservation and reduced immunogenicity. The objective of this study was to evaluate xenogeneic (porcine) compared with allogeneic (ovine) IFC heart valves in a large animal study...
November 27, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29185138/barbados-blackbelly-the-caribbean-ovine-genetic-resource
#17
REVIEW
André M de Almeida
Ovine production is one of the most important activities in animal production in tropical regions. The Barbados Blackbelly, a very interesting genetic resource, particularly well adapted to a harsh home environment in the humid tropics of the Caribbean. This review concerns this breed. It comprises aspects related to the breed history and standards and most importantly its reproductive and productive performances and gastrointestinal parasite tolerance in the Caribbean, North America and Central America and their introduction and use in crossbred trials in other regions of the tropics...
November 28, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29184757/biomechanical-assessment-of-new-surgical-method-instead-of-kyphoplasty-to-improve-the-mechanical-behavior-of-the-vertebra-micro-finite-element-study
#18
Seyed Aref Hosseini Faradonbeh, Nima Jamshidi
AIM: To reduce post treatments of kyphoplasty, as a common treatment for osteoporotic vertebrae. METHODS: This study suggests a new method for treating vertebrae by setting the hexagonal porous structure instead of the rigid bone cement mass in the kyphoplasty (KP). The KP procedure was performed on the fresh ovine vertebra of the level L1. Micro finite element modeling was performed based on micro computed tomography of ovine trabecular cube. The hexagonal porous structure was set on one cube instead of the bone cement mass...
November 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29184376/bovine-origin-staphylococcus-aureus-a-new-zoonotic-agent
#19
Relangi Tulasi Rao, Kannan Jayakumar, Pavitra Kumar
Aim: The study aimed to assess the nature of animal origin Staphylococcus aureus strains. The study has zoonotic importance and aimed to compare virulence between two different hosts, i.e., bovine and ovine origin. Materials and Methods: Conventional polymerase chain reaction-based methods used for the characterization of S. aureus strains and chick embryo model employed for the assessment of virulence capacity of strains. All statistical tests carried on R program, version 3...
October 2017: Veterinary World
https://www.readbyqxmd.com/read/29180778/the-development-of-bioresorbable-composite-polymeric-implants-with-high-mechanical-strength
#20
Upma Sharma, Danny Concagh, Lee Core, Yina Kuang, Changcheng You, Quynh Pham, Greg Zugates, Rany Busold, Stephanie Webber, Jonathan Merlo, Robert Langer, George M Whitesides, Maria Palasis
Implants for the treatment of tissue defects should mimic the mechanical properties of the native tissue of interest and should be resorbable as well as biocompatible. In this work, we developed a scaffold from variants of poly(glycolic) acid which were braided and coated with an elastomer of poly(glycolide-co-caprolactone) and crosslinked. The coating of the scaffold with the elastomer led to higher mechanical strength in terms of compression, expansion and elasticity compared to braids without the elastomer coating...
November 20, 2017: Nature Materials
keyword
keyword
21106
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"