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https://www.readbyqxmd.com/read/29229882/igf1-stimulates-differentiation-of-primary-follicles-and-their-growth-in-ovarian-explants-of-zebrafish-danio-rerio-cultured-in-vitro
#1
Pancharatna A Katti, Sheetal S Narvekar, Basavaraj B Goundadkar, Prasad A Deshpande
The present study is an attempt to elucidate the involvement of insulin-like growth factor (IGF1) in the differentiation and growth of primary follicles in ovarian explant cultures of zebrafish. Ovaries from adult females were cultured in triplicate sets/treatment group for 15 days at 22° in the laboratory. Culture medium was supplemented with either insulin (1 ng/mL) or IGF1 (1 ng/mL) or insulin + IGF1 (Experiment 1) or 0.1 or 1.0 or 10 ng/mL of IGF1 (Experiment 2). Ovaries cultured in medium alone served as controls and those fixed at the beginning of the culture as initial controls...
December 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/29229253/can-transesophageal-echocardiography-be-performed-safely-using-a-laryngeal-mask-airway-during-atrial-fibrillation-ablation
#2
Damian Balmforth, Andrew Smith, David Nagore, Richard Schilling, Ben O'Brien
OBJECTIVE: To investigate the feasibility and safety of using a laryngeal mask airway (LMA) compared with a cuffed oral endotracheal tube (COETT) for atrial fibrillation (AF) ablation with transesophageal echocardiography (TEE). DESIGN: Prospective, cohort study. SETTING: A single-center inner-city hospital. PARTICIPANTS: The study comprised adult patients undergoing elective AF ablation with periprocedural TEE over a 3-year period...
November 2, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29228158/percutaneous-left-atrial-appendage-occlusion-in-atrial-fibrillation-patients-with-a-contraindication-to-oral-anticoagulation-a-focused-review
#3
Marin Nishimura, Shiv Sab, Ryan R Reeves, Jonathan C Hsu
Stroke is the most feared complication of atrial fibrillation (AF). Although oral anticoagulation with non-vitamin K antagonist and non-vitamin K antagonist oral anticoagulants (NOACs) have been established to significantly reduce risk of stroke, real-world use of these agents are often suboptimal due to concerns for adverse events including bleeding from both patients and clinicians. Particularly in patients with previous serious bleeding, oral anticoagulation may be contraindicated. Left atrial appendage occlusion (LAAO), mechanically targeting the source of most of the thrombi in AF, holds an immense potential as an alternative to OAC in management of stroke prophylaxis...
December 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29227632/a-soluble-molecularly-imprinted-polymer-based-potentiometric-sensor-for-determination-of-bisphenol-af
#4
Huan Zhang, Ruiqing Yao, Ning Wang, Rongning Liang, Wei Qin
Molecularly imprinted polymer (MIP)-based polymeric membrane potentiometric sensors have been successfully developed for determination of organic compounds in their ionic and neutral forms. However, most of the MIP receptors in potentiometric sensors developed so far are insoluble and cannot be well dissolved in the polymeric membranes. The heterogeneous molecular recognitions between the analytes and MIPs in the membranes are inefficient due to the less available binding sites of the MIPs. Herein we describe a novel polymeric membrane potentiometric sensor using a soluble MIP (s-MIP) as a receptor...
December 11, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29227138/a-comparison-of-mycotoxin-contamination-of-premium-and-grocery-brands-of-pelleted-cat-food-in-south-africa
#5
Sanil D Singh, Sooraj Baijnath, Anil A Chuturgoon
Contamination with mycotoxins is of concern to pet owners and veterinary practitioners owing to their ability to cause disease and exacerbate the pathological changes associated with other diseases. Currently, there is a lack of information regarding the mycotoxin content of common premium brand (PB) and grocery brand (GB) cat feeds. Therefore, we undertook to determine the mycobiota content of feed samples, from both categories (n = 6 each), and measured the levels of aflatoxin (AF), fumonisin (FB), ochratoxin A (OTA) and zearalenone (ZEA) by high performance liquid chromatographic analysis...
November 22, 2017: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/29227008/ice-or-fire-comparison-of-second-generation-cryoballoon-ablation-and-radiofrequency-ablation-in-patients-with-symptomatic-persistent-atrial-fibrillation-and-an-enlarged-left-atrium
#6
Ersan Akkaya, Alexander Berkowitsch, Sergej Zaltsberg, Harald Greiss, Christian W Hamm, Johannes Sperzel, Thomas Neumann, Malte Kuniss
INTRODUCTION: We aimed to compare arrhythmia recurrence rates after second-generation cryoballoon (CB-Adv) ablation and radiofrequency (RF) ablation in patients with symptomatic persistent atrial fibrillation (AF) and left atrial (LA) enlargement. METHODS AND RESULTS: Persistent AF patients with LA enlargement were compared using a propensity-score-matching algorithm, and 111 patients treated with CB-Adv ablation and 111 patients treated with RF ablation were selected...
December 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29225850/newly-developed-atrial-fibrillation-progresses-to-a-more-severe-intermacs-score-in-a-patient-with-advanced-heart-failure-due-to-dilated-cardiomyopathy
#7
Akihito Saito, Eisuke Amiya, Masaru Hatano, Yumiko Hosoya, Hisataka Maki, Daisuke Nitta, Shun Minatsuki, Masafumi Watanabe, Issei Komuro
We have presented a case of advanced HF, in which newly developed AF hastened the timing of the implantation of mechanical support. Newly developed AF in advanced HF may be intractable by medical therapies and could be a key event that determines the timing of mechanical support.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29225627/isolation-and-molecular-characterization-of-amniotic-fluid-derived-mesenchymal-stem-cells-obtained-from-caesarean-sections
#8
Lucas-Sebastian Spitzhorn, Md Shaifur Rahman, Laura Schwindt, Huyen-Tran Ho, Wasco Wruck, Martina Bohndorf, Silke Wehrmeyer, Audrey Ncube, Ines Beyer, Carsten Hagenbeck, Percy Balan, Tanja Fehm, James Adjaye
Human amniotic fluid cells are immune-privileged with low immunogenicity and anti-inflammatory properties. They are able to self-renew, are highly proliferative, and have a broad differentiation potential, making them amenable for cell-based therapies. Amniotic fluid (AF) is routinely obtained via amniocentesis and contains heterogeneous populations of foetal-derived progenitor cells including mesenchymal stem cells (MSCs). In this study, we isolated human MSCs from AF (AF-MSCs) obtained during Caesarean sections (C-sections) and characterized them...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29224650/chocolate-consumption-and-risk-of-atrial-fibrillation-two-cohort-studies-and-a-meta-analysis
#9
Susanna C Larsson, Nikola Drca, Mats Jensen-Urstad, Alicja Wolk
BACKGROUND: Chocolate consumption has been inconsistently associated with risk of atrial fibrillation (AF). We investigated the association between chocolate consumption and risk of AF in Swedish adults from two cohort studies and conducted a meta-analysis to summarize available evidence from cohort studies on this topic. METHODS: Our study population comprised 40,009 men from the Cohort of Swedish Men and 32,486 women from the Swedish Mammography Cohort. Incident AF cases were ascertained through linkage with the Swedish National Patient Register...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29224646/association-of-insurance-type-with-receipt-of-oral-anticoagulation-in-insured-patients-with-atrial-fibrillation-a-report-from-the-american-college-of-cardiology-ncdr-pinnacle-registry
#10
Celina M Yong, Yuyin Liu, Patricia Apruzzese, Gheorghe Doros, Christopher P Cannon, Thomas M Maddox, Anil Gehi, Jonathan C Hsu, Steven A Lubitz, Salim Virani, Mintu P Turakhia
BACKGROUND: It is poorly understood whether insurance type may be a major contributor to the underuse of oral anticoagulation (OAC) among patients with atrial fibrillation (AF), particularly for novel oral anticoagulants (NOACs). METHODS: We performed a retrospective cohort registry study of patients with insurance, AF, CHA2DS2-VASc ≥2, and at least one outpatient encounter recorded in the ACC NCDR's PINNACLE Registry between January 1, 2011 and December 31, 2014...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29224585/long-term-implications-of-feed-energy-source-in-different-genetic-types-of-reproductive-rabbit-females-i-resource-acquisition-and-allocation
#11
A Arnau-Bonachera, C Cervera, E Blas, T Larsen, E Martínez-Paredes, L Ródenas, J J Pascual
To achieve functional but also productive females, we hypothesised that it is possible to modulate acquisition and allocation of animals from different genetic types by varying the main energy source of the diet. To test this hypothesis, we used 203 rabbit females belonging to three genetic types: H (n=66), a maternal line characterised by hyper-prolificacy; LP (n=67), a maternal line characterised by functional hyper-longevity; R (n=79), a paternal line characterised by growth rate. Females were fed with two isoenergetic and isoprotein diets differing in energy source: animal fat (AF) enhancing milk yield; cereal starch (CS) promoting body reserves recovery...
December 11, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29224584/long-term-implications-of-feed-energy-source-in-different-genetic-types-of-reproductive-rabbit-females-iii-fitness-and-productivity
#12
A Arnau-Bonachera, D Savietto, J J Pascual
The specialization process associated with genetic selection could be associated with functional disorders, affecting the reproductive success of females (fitness). We hypothesized that by modulating energy acquisition and allocation of females we could balance productivity and reproductive success. To test this hypothesis, we used 203 rabbit females belonging to three genetic types: H (n=66) maternal line specialized in prolificacy, LP (n=67) generalist maternal line, R (n=70) paternal line specialized in growth rate...
December 11, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29224364/new-anticoagulants-for-venous-thromboembolism-and-atrial-fibrillation-what-the-future-holds
#13
Gerasimos Dimitropoulos, S M Zubair Rahim, Alexandra Sophie Moss, Gregory Y H Lip
Introduction The field of anticoagulation has seen impressive progress over the last decade. The introduction of the Non Vitamin K Oral Anticoagulants (NOACs) has revolutionized practice surrounding thromboprophylaxis, treatment of thromboembolic disease and stroke prevention in atrial fibrillation (AF). However, the search for the "holy grail" of anticoagulation, an agent that combines optimal efficacy with minimal bleeding diathesis, continues. Areas covered In this paper we aim to summarize the current evidence from pre-clinical studies and early phase clinical trials, presenting the pharmacodynamic and pharmacokinetic properties as well as the safety and efficacy profiles of the most important antithrombotic agents in development...
December 9, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/29223441/edoxaban-for-the-management-of-elderly-japanese-patients-with-atrial-fibrillation-ineligible-for-standard-oral-anticoagulant-therapies-rationale-and-design-of-the-eldercare-af-study
#14
Ken Okumura, Gregory Y H Lip, Masaharu Akao, Kimihiko Tanizawa, Masayuki Fukuzawa, Kenji Abe, Masahiro Akishita, Takeshi Yamashita
Edoxaban-a non-vitamin K antagonist oral anticoagulant (NOAC)- 60-mg and 30-mg once-daily dose regimens are noninferior versus well-managed warfarin for the prevention of stroke or systemic embolic events (SEE) with less major bleeding in patients with nonvalvular atrial fibrillation (NVAF). There are no published data from phase 3 clinical trials specifically evaluating the use of NOACs in elderly NVAF patients, especially those considered ineligible for available oral anticoagulants. The Edoxaban Low-Dose for EldeR CARE AF patients (ELDERCARE-AF) study is a phase 3, randomized, double-blind, placebo-controlled, parallel-group, multicenter study that will compare the safety and efficacy of once-daily edoxaban 15 mg versus placebo in Japanese patients with NVAF ≥80 years of age who are considered ineligible for standard oral anticoagulant therapy...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29223435/atrial-fibrillation-decision-support-tool-population-perspective
#15
Mark H Eckman, Alexandru Costea, Mehran Attari, Jitender Munjal, Ruth E Wise, Carol Knochelmann, Matthew L Flaherty, Pete Baker, Robert Ireton, Brett M Harnett, Anthony C Leonard, Dylan Steen, Adam Rose, John Kues
BACKGROUND: Appropriate thromboprophylaxis for patients with atrial fibrillation or atrial flutter (AF) remains a national challenge. The recent availability of direct oral anticoagulants (DOACs) with comparable efficacy and improved safety compared with warfarin alters the balance between risk factors for stroke and benefit of anticoagulation. Our objective was to examine the impact of DOACs as an alternative to warfarin on the net benefit of oral anticoagulant therapy (OAT) in a real-world population of AF patients...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29223431/international-trends-in-clinical-characteristics-and-oral-anticoagulation-treatment-for-patients-with-atrial-fibrillation-results-from-the-garfield-af-orbit-af-i-and-orbit-af-ii-registries
#16
Benjamin A Steinberg, Haiyan Gao, Peter Shrader, Karen Pieper, Laine Thomas, A John Camm, Michael D Ezekowitz, Gregg C Fonarow, Bernard J Gersh, Samuel Goldhaber, Sylvia Haas, Werner Hacke, Peter R Kowey, Jack Ansell, Kenneth W Mahaffey, Gerald Naccarelli, James A Reiffel, Alexander Turpie, Freek Verheugt, Jonathan P Piccini, Ajay Kakkar, Eric D Peterson, Keith A A Fox
Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world. We aimed to provide comprehensive data on international patterns of AF stroke prevention treatment. METHODS: Demographics, comorbidities, and stroke risk of the patients in the GARFIELD-AF (n=51,270), ORBIT-AF I (n=10,132), and ORBIT-AF II (n=11,602) registries were compared (overall N=73,004 from 35 countries). Stroke prevention therapies were assessed among patients with new-onset AF (≤6 weeks). RESULTS: Patients from GARFIELD-AF were less likely to be white (63% vs 89% for ORBIT-AF I and 86% for ORBIT-AF II) or have coronary artery disease (19% vs 36% and 27%), but had similar stroke risk (85% CHA2DS2-VASc ≥2 vs 91% and 85%) and lower bleeding risk (11% with HAS-BLED ≥3 vs 24% and 15%)...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29222043/catheter-ablation-of-atrial-fibrillation-in-patients-with-heart-failure-and-preserved-ejection-fraction
#17
Eric Black-Maier, Xinru Ren, Benjamin A Steinberg, Cynthia L Green, Adam S Barnett, Normita Sta Rosa, Sana M Al-Khatib, Brett D Atwater, James P Daubert, Camille Frazier-Mills, Augustus O Grant, Donald D Hegland, Kevin P Jackson, Larry R Jackson, Jason I Koontz, Robert K Lewis, Albert Y Sun, Kevin L Thomas, Tristam D Bahnson, Jonathan P Piccini
BACKGROUND: Few studies have examined outcomes of catheter ablation for atrial fibrillation (AF) in patients with heart failure with preserved ejection fraction (HFpEF). OBJECTIVE: Compare outcomes of AF ablation in patients with HFpEF versus HF with reduced ejection fraction (HFrEF). METHODS: We performed a retrospective study of 230 patients with HF who underwent AF ablation, including 97 (42.2%) with HFrEF and 133 (57.8%) with HFpEF. Outcomes included adverse events, symptoms (Mayo AF Symptom Inventory [MAFSI]), New York Heart Association (NYHA) functional class, and freedom from recurrent atrial arrhythmia at 12-months...
December 5, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29221502/impact-of-cardiorespiratory-fitness-on-frequency-of-atrial-fibrillation-stroke-and-all-cause-mortality
#18
Nasir Hussain, Bernard J Gersh, Karina Gonzalez Carta, Nóra Sydó, Francisco Lopez-Jimenez, Stephen L Kopecky, Randal J Thomas, Samuel J Asirvatham, Thomas G Allison
Benefits of cardiorespiratory fitness on cardiovascular health are well recognized, but the impact on incidence of atrial fibrillation (AF) and stroke, and, particularly, risk of stroke and mortality in patients with AF is less clear. From 1993 to 2010, patients referred for a treadmill exercise test (TMET) at the Mayo Clinic Rochester, MN, were retrospectively identified (N = 76,857). From this, 14,094 local residents were selected. Exclusions were age <18 years; history of heart failure, structural or valvular heart disease, AF or flutter, or stroke...
January 1, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29221440/effect-of-flecainide-on-atrial-fibrillatory-rate-in-a-large-animal-model-with-induced-atrial-fibrillation
#19
Eva Z Hesselkilde, Helena Carstensen, Maria M Haugaard, Jonas Carlson, Steen Pehrson, Thomas Jespersen, Rikke Buhl, Pyotr G Platonov
BACKGROUND: Atrial fibrillatory cycle length has been considered one of the indices of atrial electrical remodelling during atrial fibrillation (AF), which can be assessed from surface ECG by computer-assisted calculation of atrial fibrillatory rate (AFR). Horses have been suggested as a bona fide model for AF studies since horses too, develop lone AF, however data on AF characteristics in horses are extremely sparse and non-invasive characterization of AF complexity using surface ECG processing has not been reported...
December 8, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29221283/effectiveness-and-safety-of-simultaneous-hybrid-thoracoscopic-endocardial-catheter-ablation-of-atrial-fibrillation-in-obese-and-non-obese-patients
#20
Kevin Phan, Laurent Pison, Nelson Wang, Aran Kanagaratnam, Tristan D Yan, Bart Maesen, Jos G Maessen, Harry J Crijns, Mark La Meir
Background: We evaluated the safety and effectiveness of the hybrid thoracoscopic endocardial epicardial ablation technique for the treatment of atrial fibrillation (AF) in obese versus non-obese patients. Methods: Between January 2010 and January 2015, a cohort of 61 patients were retrospectively identified to undergo ablation of AF as a stand-alone procedure using a thoracoscopic, hybrid epicardial-endocardial technique. All patients underwent continuous 7-day Holter monitoring at 3, 6 months, 1 year and yearly thereafter...
September 2017: Journal of Thoracic Disease
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