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https://www.readbyqxmd.com/read/28438984/comparison-of-multiple-non-invasive-methods-of-measuring-cardiac-output-during-pregnancy-reveals-marked-heterogeneity-in-the-magnitude-of-cardiac-output-change-between-women
#1
John W Petersen, Jing Liu, Yueh-Yun Chi, Melissa Lingis, R Stan Williams, Alice Rhoton-Vlasak, Mark S Segal, Kirk P Conrad
Various non-invasive methods are available to measure cardiac output (CO) during pregnancy. We compared serial measures of CO using various methods to determine which provided the least variability. Ten patients with spontaneous pregnancy had estimation of CO at baseline prior to becoming pregnant and at the end of the first and third trimesters. Echocardiographic data were used to estimate CO using the Teichholz method, Simpson's biplane method, and the Doppler determined velocity time integral (VTI) method...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28437320/development-of-a-claims-based-frailty-indicator-anchored-to-a-well-established-frailty-phenotype
#2
Jodi B Segal, Hsien-Yen Chang, Yu Du, Jeremy D Walston, Michelle C Carlson, Ravi Varadhan
BACKGROUND: Fried and colleagues described a frailty phenotype measured in the Cardiovascular Health Study (CHS). This phenotype is manifest when ≥3 of the following are present: low grip strength, low energy, slowed waking speed, low physical activity, or unintentional weight loss. We sought to approximate frailty phenotype using only administrative claims data to enable frailty to be assessed without physical performance measures. STUDY DESIGN: We used the CHS cohort data linked to participants Medicare claims...
April 21, 2017: Medical Care
https://www.readbyqxmd.com/read/28436946/essential-role-for-bim-in-mediating-the-apoptotic-and-antitumor-activities-of-immunotoxins
#3
A Antignani, D Segal, N Simon, R J Kreitman, D Huang, D J FitzGerald
Protein synthesis is crucial for regulating cell homeostasis and, when unrestricted, it can lead to tumorigenesis. Immunotoxins derived from Pseudomonas exotoxin are antibody-toxin fusion proteins that inhibit protein synthesis of mammalian cells via ADP-ribosylation of the eukaryotic elongation factor-2. Here we investigate the role of the Bcl-2 family proteins in the response of cancer cells to immunotoxin challenge. Besides the well-known reduction of the prosurvival Bcl-2 family member, Mcl-1, following inhibition of protein synthesis, we show for the first time that immunotoxins also reduce the levels of selected proapoptotic BH-3-only proteins...
April 24, 2017: Oncogene
https://www.readbyqxmd.com/read/28434926/scoping-review-to-develop-common-data-elements-for-lumbar-spinal-stenosis
#4
Allen Heinemann, Jason Raad, Venu Akuthota, Neil Segal, Kristian P Nitsch, Monica Rho, Leighton Chan, Ellen Casey, Joel Press, Gwendolyn Sowa, Jennifer Moore
BACKGROUND CONTEXT: Common Data Elements (CDE) represent an important tool for understanding and classifying health outcomes across settings. While CDE's have been developed for a number of disorders, to date CDEs for Lumbar Spinal Stenosis (LSS) have not been fully developed. To facilitate the identification of CDEs and measures to assess them, this technical study leverages The International Classification of Functioning, Disability and Health (ICF), peer-reviewed research, and a panel of experts to identify CDEs specific to LSS...
April 18, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28433126/neonatal-graves-eye-disease
#5
Kira L Segal, Christine C Nelson
No abstract text is available yet for this article.
May 2017: Ophthalmology
https://www.readbyqxmd.com/read/28432873/conditional-deletion-of-bmal1-accentuates-microvascular-and-macrovascular-injury
#6
Ashay D Bhatwadekar, Eleni Beli, Diao Yanpeng, Jonathan Chen, Qianyi Luo, Alpha Alex, Sergio Caballero, James M Dominguez, Tatiana E Salazar, Julia V Busik, Mark S Segal, Maria B Grant
The brain and muscle aryl hydrocarbon receptor nuclear translocator-like protein (BMAL)-1 constitutes a major transcriptional regulator of the circadian clock. Here, we explored the impact of conditional deletion of Bmal1 in endothelium and hematopoietic cells in murine models of microvascular and macrovascular injury. We used two models of Bmal1(fx/fx);Tek-Cre mice, a retinal ischemia/reperfusion model and a neointimal hyperplasia model of the femoral artery. Eyes were enumerated for acellular capillaries and were stained for oxidative damage markers using nitrotyrosine immunohistochemistry...
April 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28432059/increased-amplitude-of-inward-rectifier-k-currents-with-advanced-age-in-smooth-muscle-cells-of-murine-superior-epigastric-arteries
#7
Sebastien Hayoz, Jessica Pettis, Vanessa Bradley, Steven S Segal, William F Jackson
Inward rectifier K(+) channels (KIR) may contribute to skeletal muscle blood flow regulation and adapt to advanced age. Using mouse abdominal wall superior epigastric arteries (SEAs) from either young (3-6 months) or old (24-26 months) male C57BL/6 mice, we investigated whether SEA smooth muscle cells (SMCs) express functional KIR, and how aging may affect KIR function. Freshly dissected SEAs were either enzymatically dissociated to isolate SMCs for electrophysiological recording (perforated patch) and mRNA expression, or used intact for pressure myography...
April 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28429975/the-real-cost-of-training-health-professionals-in-australia-it-costs-as-much-to-build-a-dietician-workforce-as-a-dental-workforce
#8
Leonie Segal, Claire Marsh, Rob Heyes
Objectives We explored the real cost of training the workforce in a range of primary health care professions in Australia with a focus on the impact of retention to contribute to the debate on how best to achieve the optimal health workforce mix. Methods The cost to train an entry-level health professional across 12 disciplines was derived from university fees, payment for clinical placements and, where relevant, cost of internship, adjusted for student drop-out. Census data were used to identify the number of qualified professionals working in their profession over a working life and to model expected years of practice by discipline...
April 2017: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/28425295/provider-and-patient-determinants-of-generic-levothyroxine-prescribing-an-electronic-health-records-based-study
#9
Robert J Romanelli, Vani Nimbal, Sarah K Dutcher, Xia Pu, Jodi B Segal
BACKGROUND: Despite the availability of generic levothyroxine products for more than a decade, uptake of these products is poor. OBJECTIVE: We sought to evaluate determinants of generic prescribing of levothyroxine. METHODS: In a cross-sectional analysis of electronic health records data between 2010 and 2013, we identified adult patients with a levothyroxine prescription from a primary-care physician (PCP) or endocrinologist. We used mixed-effect logistic regression models with random intercepts for prescribing provider to examine predictors of generic levothyroxine prescribing...
April 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28418385/speaking-out-about-gender-imbalance-in-invited-speakers-improves-diversity
#10
Robyn S Klein, Rhonda Voskuhl, Benjamin M Segal, Bonnie N Dittel, Thomas E Lane, John R Bethea, Monica J Carson, Carol Colton, Susanna Rosi, Aileen Anderson, Laura Piccio, Joan M Goverman, Etty N Benveniste, Melissa A Brown, Seema Kaushalya Tiwari-Woodruff, Tajie H Harris, Anne H Cross
No abstract text is available yet for this article.
April 18, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28415246/synchronization-dynamics-on-the-picosecond-time-scale-in-coupled-josephson-junction-neurons
#11
K Segall, M LeGro, S Kaplan, O Svitelskiy, S Khadka, P Crotty, D Schult
Conventional digital computation is rapidly approaching physical limits for speed and energy dissipation. Here we fabricate and test a simple neuromorphic circuit that models neuronal somas, axons, and synapses with superconducting Josephson junctions. The circuit models two mutually coupled excitatory neurons. In some regions of parameter space the neurons are desynchronized. In others, the Josephson neurons synchronize in one of two states, in-phase or antiphase. An experimental alteration of the delay and strength of the connecting synapses can toggle the system back and forth in a phase-flip bifurcation...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28412383/a-prospective-international-aspergillus-terreus-survey-an-efisg-isham-and-ecmm-joint-study
#12
Brigitte Risslegger, Tamara Zoran, Michaela Lackner, Maria Aigner, Ferran Sánchez-Reus, Antonio Rezusta, Anuradha Chowdhary, Saad Jaber Taj-Aldeen, Maiken C Arendrup, Salvatore Oliveri, Dimitrios P Kontoyiannis, Ana Alastruey-Izquierdo, Katrien Lagrou, Giuliana Lo Cascio, Jacques F Meis, Walter Buzina, Claudio Farina, Miranda Drogari-Apiranthitou, Anna Grancini, Anna Maria Tortorano, Birgit Willinger, Axel Hamprecht, Elizabeth Johnson, Lena Klingspor, Valentina Arsic-Arsenijevic, Oliver A Cornely, Joseph Meletiadis, Wolfgang Prammer, Vivian Tullio, Jörg-Janne Vehreschild, Laura Trovato, Russell E Lewis, Esther Segal, Peter-Michael Rath, Petr Hamal, Manuel Rodriguez-Iglesias, Emmanuel Roilides, Sevtap Arikan-Akdagli, Arunaloke Chakrabarti, Arnaldo L Colombo, Mariana S Fernández, M Teresa Martin-Gomez, Hamid Badali, Georgios Petrikkos, Nikolai Klimko, Sebastian M Heimann, Jos Houbraken, Omrum Uzun, Michael Edlinger, Sonia de la Fuente, Cornelia Lass-Flörl
OBJECTIVES: A prospective international multicentre surveillance study was conducted to investigate the prevalence and amphotericin B (AMB) susceptibility of Aspergillus terreus species complex infections. METHODS: Three hundred seventy cases from 21 countries were evaluated. RESULTS: The overall prevalence of A. terreus species complex among patients investigated and with mold positive cultures was 5.2% (370/7116). AMB MICs were ranging from 0...
April 13, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28409774/dr5-and-caspase-8-are-dispensable-in-er-stress-induced-apoptosis
#13
Jason A Glab, Marcel Doerflinger, Christina Nedeva, Irvin Jose, George W Mbogo, James C Paton, Adrienne W Paton, Andrew J Kueh, Marco J Herold, David Cs Huang, David Segal, Gabriella Brumatti, Hamsa Puthalakath
The endoplasmic reticulum (ER) stress response constitutes cellular reactions triggered by a wide variety of stimuli that disturb folding of proteins, often leading to apoptosis. ER stress-induced apoptotic cell death is thought to be an important contributor to many human pathological conditions. The molecular mechanism of this apoptosis process has been highly controversial with both the receptor and the mitochondrial pathways being implicated. Using knockout mouse models and RNAi-mediated gene silencing in cell lines, our group and others had demonstrated the importance of the mitochondrial apoptotic pathway in ER stress-induced cell death, particularly the role of the pro-apoptotic BH3-only BCL-2 family members, BIM and PUMA...
April 14, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28409300/intrinsic-and-extrinsic-determinants-linking-spindle-pole-fate-spindle-polarity-and-asymmetric-cell-division-in-the-budding-yeast-s-cerevisiae
#14
Marco Geymonat, Marisa Segal
The budding yeast S. cerevisiae is a powerful model to understand the multiple layers of control driving an asymmetric cell division. In budding yeast, asymmetric targeting of the spindle poles to the mother and bud cell compartments respectively orients the mitotic spindle along the mother-bud axis. This program exploits an intrinsic functional asymmetry arising from the age distinction between the spindle poles-one inherited from the preceding division and the other newly assembled. Extrinsic mechanisms convert this age distinction into differential fate...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28406853/the-role-of-computed-tomography-in-the-classification-of-pediatric-pelvic-fractures-revisited
#15
Bent Ma, Hennrikus Wl, Latorre Je, Armstrong Dg, Shaw B, Jones Kc, Segal Ls
OBJECTIVES: To determine the need of CT scans in the assessment of pediatric pelvic fractures DESIGN:: Retrospective Chart Review SETTING:: Level-1 Pediatric Trauma CenterPatients/Participants: 30 pediatric trauma patients with pelvic fractures who have obtained both a radiograph and CT Scan MAIN OUTCOME MEASUREMENTS:: Fleiss Kappa coefficient to compare inter-reliability. RESULTS: The average age of the patients was 7 years (range 1-13 years). 17 were male and 13 were female...
April 10, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28405001/dietary-factors-in-rheumatic-autoimmune-diseases-a-recipe-for-therapy
#16
REVIEW
Shani Dahan, Yahel Segal, Yehuda Shoenfeld
Today, we are facing a new era of digitization in the health care system, and with increased access to health care information has come a growing demand for safe, cost-effective and easy to administer therapies. Dietary habits have a crucial influence on human health, affecting an individual's risk for hypertension, heart disease and stroke, as well as influencing the risk of developing of cancer. Moreover, an individual's lifestyle choices can greatly influence the progression and manifestation of chronic autoimmune rheumatic diseases...
April 13, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28402427/bdnf-overexpression-prevents-cognitive-deficit-elicited-by-adolescent-cannabis-exposure-and-host-susceptibility-interaction
#17
Hadar Segal-Gavish, Neta Gazit, Yael Barhum, Tali Ben-Zur, Michal Taler, Shay Henry Hornfeld, Irit Gil-Ad, Abraham Weizman, Inna Slutsky, Minae Niwa, Atsushi Kamiya, Akira Sawa, Daniel Offen, Ran Barzilay
Cannabis abuse in adolescence is associated with increased risk of psychotic disorders. Δ-9-tetrahydrocannabinol (THC) is the primary psychoactive component of cannabis. Disrupted-In-Schizophrenia-1 (DISC1) protein is a driver for major mental illness by influencing neurodevelopmental processes. Here, utilizing a unique mouse model based on host (DISC1) X environment (THC administration) interaction, we aimed at studying the pathobiological basis through which THC exposure elicits psychiatric manifestations...
April 11, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28399166/ultraviolet-uv-c-inactivation-of-enterococcus-faecium-salmonella-choleraesuis-and-salmonella-typhimurium-in-porcine-plasma
#18
Elena Blázquez, Carmen Rodríguez, Jesús Ródenas, Ana Pérez de Rozas, Joaquim Segalés, Joan Pujols, Javier Polo
The objective of this study was to assess the effectiveness of an ultraviolet (UV-C, 254 nm) irradiation system on reducing the load of Salmonella typhimurium (S. typhimurium), Salmonella choleraesuis (S. choleraesuis) resistant to streptomycin and Enterococcus faecium (E. faecium) inoculated in sterile porcine plasma and then subjected to different UV-C irradiation doses (750, 1500, 3000, 6000 and 9000 J/L) using a pilot plant UV-C device working under turbulent flow. Results indicated that UV-C treatment induced a viability reduction of 0...
2017: PloS One
https://www.readbyqxmd.com/read/28396018/urinary-incontinence-and-other-pelvic-floor-disorders-after-radiation-therapy-in-endometrial-cancer-survivors
#19
Saya Segal, Gabriella John, Mary Sammel, Uduak Umoh Andy, Christina Chu, Lily A Arya, Justin Brown, Kathryn Schmitz
OBJECTIVE: To investigate radiation therapy as a risk factor for urinary or fecal incontinence, pelvic organ prolapse, and sexual dysfunction in endometrial cancer survivors. STUDY DESIGN: We performed a retrospective cohort study of endometrial cancer survivors. Data were collected using a mailed survey and the medical record. Validated questionnaires were used to generate rates of urinary incontinence and other pelvic floor disorders. The incidence rates of pelvic floor disorders were compared across groups with different exposures to radiation...
March 18, 2017: Maturitas
https://www.readbyqxmd.com/read/28394823/human-papilloma-virus-and-lupus-the-virus-the-vaccine-and-the-disease
#20
Yahel Segal, Michele Calabrò, Darja Kanduc, Yehuda Shoenfeld
PURPOSE OF REVIEW: Systemic lupus erythematosus (SLE) is a well known, widespread autoimmune disease, involving multiple organ systems, with a multifaceted, widely unmapped etiopathogenesis. Recently, a new aspect of morbidity has been described among SLE patients: infection with human papilloma virus (HPV). We set out to review data regarding the intricate relationship between the two and attempt to determine whether HPV may pose as a contributing factor to the development of SLE. RECENT FINDINGS: We relate to epidemiological, molecular and clinical data...
April 7, 2017: Current Opinion in Rheumatology
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