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https://www.readbyqxmd.com/read/28708332/oxidative-stress-and-cellular-and-tissue-damage-in-organogenic-outbred-mouse-embryos-after-moderate-perigestational-alcohol-intake
#1
Tamara A Coll, Gabriela Chaufan, Leticia Pérez-Tito, Martín R Ventureira, Cristian M A Sobarzo, María Del Carmen Ríos de Molina, Elisa Cebral
Perigestational alcohol consumption by CF-1 mouse, from before mating up to the period of embryo organogenesis, leads to retarded early embryo development and neural tube defects. Here, we addressed if perigestational alcohol ingestion up to Day 10 of pregnancy induces oxidative stress and changes in macromolecules and organ tissues of early organogenic embryos. Adult CF-1 female mice were administered 10% ethanol in their drinking water for 17 days prior to mating and until Day 10 of gestation, whereas control females were administered ethanol-free water...
July 14, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28655496/mosquito-aging-modulates-the-heart-rate-and-the-proportional-directionality-of-heart-contractions
#2
Charlotte R Doran, Tania Y Estévez-Lao, Julián F Hillyer
Mosquito aging impacts a myriad of physiological processes, including digestion, flight, mating, reproductive success, and immunity. In the present study, we conducted intravital video imaging in 1, 3, 5, 10, 15 and 20-day-old Anopheles gambiae female adults to assess whether aging impacts mosquito heart physiology. We found that the heart contraction rate increases over the first 15days of adulthood and then decreases. These changes occur for both contraction directions, although aging results in a relative change in the anterograde versus retrograde contraction rates...
June 24, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28384154/structured-mating-patterns-and-implications
#3
Ronnie Sebro, Gina M Peloso, Josée Dupuis, Neil J Risch
Genetic similarity of spouses can reflect factors influencing mate choice, such as physical/behavioral characteristics, and patterns of social endogamy. Spouse correlations for both genetic ancestry and measured traits may impact genotype distributions (Hardy Weinberg and linkage equilibrium), and therefore genetic association studies. Here we evaluate white spouse-pairs from the Framingham Heart Study (FHS) original and offspring cohorts (N = 124 and 755, respectively) to explore spousal genetic similarity and its consequences...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28359226/prevention-of-fetal-infection-in-heifers-challenged-with-bovine-viral-diarrhoea-virus-type-1a-by-vaccination-with-a-type-1c-or-type-1a-vaccine
#4
RANDOMIZED CONTROLLED TRIAL
R Packianathan, W J Clough, A Hodge, D K Holz, J Huang, G L Bryant, C Colantoni
AIMS: To evaluate a vaccine containing type 1c bovine viral diarrhoea (BVD) virus for prevention of fetal infection in pregnant heifers when challenged with New Zealand BVD virus type 1a 6 months after vaccination, compared to unvaccinated heifers and heifers vaccinated with a vaccine containing type 1a BVD virus. METHODS: Fifty five crossbred Friesian heifers, free from BVD virus and antibody, were randomly allocated to three groups. Twenty five heifers were vaccinated twice with a vaccine containing type 1c BVD virus (T1c group), and 10 heifers with a vaccine containing type 1a BVD virus (T1a group), and 20 heifers were unvaccinated (NC group)...
May 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28341764/transesophageal-echocardiographic-guidance-of-transcatheter-closure-of-the-aortic-valve-in-a-patient-with-left-ventricular-assist-device-related-severe-aortic-regurgitation
#5
Preetham Muskala, Taiyeb M Khumri, Michael L Main
A 68 year-old man with a severe ischemic cardiomyopathy underwent left ventricular assist device (LVAD) implantation (Heart Mate II device) for destination therapy. He presented 49 months following LVAD implant with worsening heart failure symptoms and new severe aortic regurgitation. Given high risk for both surgical and transcatheter aortic valve replacement, he was admitted for transcatheter closure of the aortic valve under transesophageal echocardiographic (TEE) guidance. TEE imaging revealed severe aortic regurgitation (see Figure 1A and 1B, and multimedia files 1 and 2)...
March 24, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28334446/molecular-glycopathology-by-capillary-electrophoresis-analysis-of-the-n-glycome-of-formalin-fixed-paraffin-embedded-mouse-tissue-samples
#6
Boglarka Donczo, Mate Szarka, Jozsef Tovari, Gyorgyi Ostoros, Eszter Csanky, Andras Guttman
Capillary electrophoresis with laser-induced fluorescence (CE-LIF) detection was used to analyze endoglycosidase released and fluorophore-labeled N-glycans from formalin-fixed paraffin-embedded (FFPE) mouse tissue samples of lung, brain, heart, spleen, liver, kidney and intestine. The FFPE samples were first deparaffinized followed by solubilization and glycoprotein retrieval. PNGase F mediated release of the N-linked oligosaccharides was followed by labeling with aminopyrene trisulfonate. After CE-LIF glycoprofiling of the FFPE mouse tissues, the N-glycan pool of the lung specimen was subject to further investigation by exoglycosidase array based carbohydrate sequencing...
June 2017: Electrophoresis
https://www.readbyqxmd.com/read/28202628/effects-of-upgrade-versus-de-novo-cardiac-resynchronization-therapy-on-clinical-response-and-long-term-survival-results-from-a-multicenter-study
#7
MULTICENTER STUDY
Mate Vamos, Julia W Erath, Zsolt Bari, Denes Vagany, Sven P Linzbach, Tatsiana Burmistrava, Carsten W Israel, Gabor Z Duray, Stefan H Hohnloser
BACKGROUND: Benefits of cardiac resynchronization therapy (CRT) on morbidity and mortality in selected patients are well known. Although the number of upgrade procedures from single- or dual-chamber devices to CRT is increasing, there are only sparse data on the outcomes of upgrade procedures compared with de novo CRT. This study aimed to evaluate clinical response and survival in patients receiving de novo versus upgrade CRT defibrillator therapy. METHODS AND RESULTS: Prospectively collected outcome data were compared in patients undergoing de novo or upgrade CRT defibrillator implantation at 3 implant centers in Germany and Hungary...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28179009/benefits-of-ultra-fast-track-anesthesia-in-left-ventricular-assist-device-implantation-a-retrospective-propensity-score-matched-cohort-study-of-a-four-year-single-center-experience
#8
Rashad Zayat, Ares K Menon, Andreas Goetzenich, Gereon Schaelte, Ruediger Autschbach, Christian Stoppe, Tim-Philipp Simon, Lachmandath Tewarie, Ajay Moza
BACKGROUND: The use of left ventricular assist devices (LVADs) has gained significant importance for treatment of end-stage heart failure. Fast-track procedures are well established in cardiac surgery, whereas knowledge of their benefits after LVAD implantation is sparse. We hypothesized that ultra-fast-track anesthesia (UFTA) with in-theater extubation or at a maximum of 4 h. after surgery is feasible in Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) level 3 and 4 patients and might prevent postoperative complications...
February 8, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28051941/thyroid-hormones-reduce-incubation-period-without-developmental-or-metabolic-costs-in-murray-river-short-necked-turtles-emydura-macquarii
#9
Jessica K McGlashan, Michael B Thompson, James U Van Dyke, Ricky-John Spencer
Metabolic processes are affected by both temperature and thyroid hormones in ectothermic vertebrates. Temperature is the major determinant of incubation length in oviparous vertebrates, but turtles can also alter developmental rate independent of temperature. Temperature gradients within natural nests cause different developmental rates of turtle embryos within nests. Despite temperature-induced reductions in developmental rate, cooler-incubated neonates often hatch synchronously with warmer siblings via metabolic compensation...
January 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/27766717/effect-of-ventricular-arrhythmia-ablation-in-patients-with-heart-mate-ii-left-ventricular-assist-devices-an-evaluation-of-ablation-therapy
#10
David Snipelisky, Yogesh N V Reddy, Kevin Manocha, Aalok Patel, Shannon M Dunlay, Paul A Friedman, Thomas M Munger, Samuel J Asirvatham, Douglas L Packer, Yong-Mei Cha, Suraj Kapa, Peter A Brady, Peter A Noseworthy, Joseph J Maleszewski, Siva K Mulpuru
BACKGROUND: Patients with advanced heart failure (HF) are predisposed to ventricular arrhythmias (VAs), particularly following implantation of a left ventricular assist device (LVAD). There is minimal evidence for appropriate management strategies. OBJECTIVES: This study aimed to compare the burden of VA and response to ablation performed either before or following LVAD implantation. METHODS: We created a retrospective cohort of patients who underwent both VA ablation and Heart Mate II (Thoratec, Pleasanton, CA, USA) LVAD implantation at Mayo Clinic (Rochester, MN, USA)...
January 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27576196/evaluation-of-feline-uterine-and-umbilical-arteries-blood-flow-in-a-pharmacologically-induced-abnormal-gestation-model
#11
RANDOMIZED CONTROLLED TRIAL
P G Blanco, R Vercellini, A Rube, R Rodríguez, D O Arias, C Gobello
The aim of this study was to describe resistance index (RI) and systolic/diastolic ratio (S/D ratio) of uterine and umbilical arteries in an experimental model of abnormal pregnancy in felids. On days 30 to 35 (32 ± 2.9) after mating, 20 domestic short-hair pregnant queens were randomly assigned to one of the following treatment groups: a treated group (TG; n = 8), which received 10 mg/kg of aglepristone subcutaneously twice, 24 hours apart, and a control nontreated group (CG; n = 12). M-mode and Doppler ultrasonographic evaluations were performed at the initiation of the treatment (Day 0) and then every other day during 8 days...
December 2016: Theriogenology
https://www.readbyqxmd.com/read/27551315/liver-specific-ng37-overexpression-leads-to-diet-dependent-fatty-liver-disease-accompanied-by-cardiac-dysfunction
#12
Xin Zhou, MengMeng Xu, Liyang Wang, Yulian Mu, Rui Feng, Zhilong Dong, Yuexin Pan, Xunzhang Chen, Yongfeng Liu, Shangen Zheng, Donald D Anthony, Jianjie Ma, Williams B Isaacs, Xuehong Xu
BACKGROUND: Environmental factors are well-known causes of diseases. However, aside from a handful of risk indicators, genes' encoding susceptibility to chronic illnesses and their associated environmental triggers are largely unknown. In this era of increasingly rich diets, such genetic predispositions would be immensely helpful from a public health perspective. The novel transgenic mouse model with liver-specific NG37 overexpression characterized in this article identifies the diet-dependent function of NG37 in the pathogenesis of fatty liver disease and cardiac arrhythmia...
2016: Genes & Nutrition
https://www.readbyqxmd.com/read/27533758/effects-of-digitalis-on-mortality-in-a-large-cohort-of-implantable-cardioverter-defibrillator-recipients-results-of-a-long-term-follow-up-study-in-1020-patients
#13
Julia W Erath, Mate Vamos, Stefan H Hohnloser
AIMS: The effects of digitalis on mortality in patients with structural heart disease are controversially discussed. We aimed to assess the effects of digitalis administration in implantable cardioverter defibrillator (ICD) recipients. METHODS AND RESULTS: This retrospective analysis comprises 1020 consecutive patients who received an ICD at our institution and who were followed for up to 10 years (median 37 months). A total of 438 patients were receiving digitalis at the time of ICD implantation and 582 did not...
July 2016: European Heart Journal. Cardiovascular Pharmacotherapy
https://www.readbyqxmd.com/read/27402911/advanced-maternal-age-causes-adverse-programming-of-mouse-blastocysts-leading-to-altered-growth-and-impaired-cardiometabolic-health-in-post-natal-life
#14
M A Velazquez, C G C Smith, N R Smyth, C Osmond, T P Fleming
STUDY QUESTION: Does advanced maternal age (AMA) in mice affect cardiometabolic health during post-natal life in offspring derived from an assisted reproduction technology (ART) procedure? SUMMARY ANSWER: Offspring derived from blastocysts collected from aged female mice displayed impaired body weight gain, blood pressure, glucose metabolism and organ allometry during post-natal life compared with offspring derived from blastocysts from young females; since all blastocysts were transferred to normalized young mothers, this effect is independent of maternal pregnancy conditions...
September 2016: Human Reproduction
https://www.readbyqxmd.com/read/27356851/mechanism-of-uncoupling-protein%C3%A2-2%C3%A2-mediated-myocardial-injury-in-hypothermic-preserved-rat-hearts
#15
Gai-Ge Chen, Jin-Bin Yan, Xu-Ming Wang, Ming-Zhi Zheng, Jian-Ping Jiang, Xin-Mei Zhou, Bin Cai, Yue-Liang Shen
In the present study, the alterations in uncoupling protein 2 (UCP2) expression following hypothermic preservation in rat hearts were investigated. Isolated rat hearts were preserved in Celsior solution for 3‑12 h followed by 60 min of reperfusion. The cardiac function was evaluated using the Langendorff perfusion system. UCP2 and silent mating type information regulation 2 homolog 1 (SIRT1) proteins were detected by western blot analysis. The ATP production and mitochondrial reactive oxygen species (ROS) levels were assessed...
August 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27208803/prevalence-and-predictors-of-metformin-prescribing-in-adults-with-type-2-diabetes-mellitus-a-national-cross-sectional-study
#16
Mate M Soric, John M Moorman, Jaclyn A Boyle, Christine M Dengler-Crish
OBJECTIVE: Metformin is the first-line oral type 2 diabetes treatment. Despite an abundance of evidence, metformin is routinely underused. This study evaluated the rates of metformin use in an appropriate outpatient type 2 diabetes population and identified predictors of metformin use. METHODS: A national cross-sectional study was conducted using data from the National Ambulatory Medical Care Survey. Office visits involving patients aged 18-79 years with a diagnosis of type 2 diabetes were included, and visits involving patients with a diagnosis of chronic renal failure or heart failure were excluded...
July 2016: Pharmacotherapy
https://www.readbyqxmd.com/read/27093953/knockout-of-the-prostaglandin-e2-receptor-subtype-3-promotes-eccentric-cardiac-hypertrophy-and-fibrosis-in-mice
#17
Shuang Liu, Yawei Ji, Jian Yao, Xiaodan Zhao, Hu Xu, Youfei Guan, Richard M Breyer, Hongzhuan Sheng, Jianhua Zhu
BACKGROUND: Prostaglandin E2 receptor subtype 3 (EP3), a Gi protein-coupled receptor activated by prostaglandin E2, plays a particular role in cardioprotection. This study aimed to investigate the impact of EP3 deletion on cardiac remodeling and further elucidate the related involvement of possible signaling pathways. METHODS AND RESULTS: The animals used were EP3 receptor knockout (EP3KO) mice and wild-type (WT) litter mate controls at 16-18 weeks old. The high-resolution echocardiography and weight index indicated that eccentric cardiac hypertrophy might occur in EP3KO mice, which were having worse cardiac function than WT litter mates...
April 18, 2016: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27090167/complete-antegrade-transapical-deployment-of-a-branched-aortic-arch-endograft-a-porcine-feasibility-study
#18
Sabine Wipper, Christina Lohrenz, Jan F Kersten, Mohamad Marwan Akkra, Nikos Tsilimparis, Christian Detter, Yskert von Kodolitsch, Axel Larena-Avellaneda, Eike Sebastian Debus, Tilo Kölbel
PURPOSE: To describe and prove the concept of a technique for complete transapical deployment of a single-branch aortic arch endograft in a porcine model. METHODS: Eight domestic pigs underwent antegrade transapical delivery of a single-branch arch endograft, including a mating stent-graft to the innominate artery. Technical feasibility, operating time, radiation parameters, and hemodynamic changes were studied according to a standardized protocol during baseline (T0), after establishing the transapical access and through-and-through wire (T1), and after stent-graft deployment (T2)...
June 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27065125/heart-rate-patterns-during-courtship-and-mating-in-rams-and-in-estrous-and-nonestrous-ewes
#19
A Orihuela, J C Omaña, R Ungerfeld
The aim of this study was to compare the heart rate (HR) patterns in rams mated with estrous or nonestrous ewes and in mated estrous and nonestrous ewes () during courtship and mating. For this purpose, HR and behavior were recorded using a radio telemetry recording system and a closed-circuit television system with video recording, respectively. Rams were joined with either an estrous ( = 10) or a nonestrous ( = 10) ewe that was restrained in a stanchion by the neck. Data were continuously recorded until each ram performed 3 ejaculations...
February 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27038779/type-2-diabetes-mellitus-induces-congenital-heart-defects-in-murine-embryos-by-increasing-oxidative-stress-endoplasmic-reticulum-stress-and-apoptosis
#20
Yanqing Wu, E Albert Reece, Jianxiang Zhong, Daoyin Dong, Wei-Bin Shen, Christopher R Harman, Peixin Yang
BACKGROUND: Maternal type 1 and 2 diabetes mellitus are strongly associated with high rates of severe structural birth defects, including congenital heart defects. Studies in type 1 diabetic embryopathy animal models have demonstrated that cellular stress-induced apoptosis mediates the teratogenicity of maternal diabetes leading to congenital heart defect formation. However, the mechanisms underlying maternal type 2 diabetes mellitus-induced congenital heart defects remain largely unknown...
September 2016: American Journal of Obstetrics and Gynecology
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