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https://www.readbyqxmd.com/read/29470830/strong-enhancement-by-igf1-r-antagonists-of-hepatocellular-carcinoma-cell-migration-inhibition-by-sorafenib-and-or-vitamin-k1
#1
Rosalba D'Alessandro, Maria Grazia Refolo, Catia Lippolis, Nicola Carella, Caterina Messa, Aldo Cavallini, Brian Irving Carr
PURPOSE: Emerging evidence indicates that combining Sorafenib with vitamin K1 (VK1) may result in a synergistic inhibition of hepatocellular carcinoma (HCC) cell migration and proliferation. Despite this synergy, its benefits may be limited due to drug resistance resulting from cross-talk with the tumor microenvironment. Insulin-like growth factor-1 (IGF1) signaling acts as an important modulator of HCC cell growth, motility and drug resistance. Therefore, we aimed to explore the effects of Sorafenib in combination with VK1 and/or IGF1-R antagonists on HCC cells...
February 22, 2018: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/29466743/a-roadmap-for-human-liver-differentiation-from-pluripotent-stem-cells
#2
Lay Teng Ang, Antson Kiat Yee Tan, Matias I Autio, Su Hua Goh, Siew Hua Choo, Kian Leong Lee, Jianmin Tan, Bangfen Pan, Jane Jia Hui Lee, Jen Jen Lum, Christina Ying Yan Lim, Isabelle Kai Xin Yeo, Chloe Jin Yee Wong, Min Liu, Jueween Ling Li Oh, Cheryl Pei Lynn Chia, Chet Hong Loh, Angela Chen, Qingfeng Chen, Irving L Weissman, Kyle M Loh, Bing Lim
How are closely related lineages, including liver, pancreas, and intestines, diversified from a common endodermal origin? Here, we apply principles learned from developmental biology to rapidly reconstitute liver progenitors from human pluripotent stem cells (hPSCs). Mapping the formation of multiple endodermal lineages revealed how alternate endodermal fates (e.g., pancreas and intestines) are restricted during liver commitment. Human liver fate was encoded by combinations of inductive and repressive extracellular signals at different doses...
February 20, 2018: Cell Reports
https://www.readbyqxmd.com/read/29464815/hepatic-elastin-content-is-predictive-of-adverse-outcome-in-advanced-fibrotic-liver-disease
#3
Timothy James Kendall, Grace Elizabeth Dolman, Catherine Mary Duff, Emma Claire Paish, Abed Zaitoun, William Irving, Jonathan Andrew Fallowfield, Indra Neil Guha
AIMS: Needle biopsy remains essential for diagnosis in assessment of liver disease, although there remains associated risk. Examination is largely limited to subjective evaluation and biopsies are not exploited to provide personalised prognostic information. Elastin is a durable component of fibrotic matrix in chronic disease, conferring resistance to remodelling and potentially influencing tissue biomechanics linked to portal hypertension. We hypothesised that elastin content was predictive of clinical outcome and so could be quantified to increase the beneficial information yield from a liver biopsy...
February 21, 2018: Histopathology
https://www.readbyqxmd.com/read/29463717/sarcomeric-perturbations-of-myosin-motors-lead-to-dilated-cardiomyopathy-in-genetically-modified-myl2-mice
#4
Chen-Ching Yuan, Katarzyna Kazmierczak, Jingsheng Liang, Zhiqun Zhou, Sunil Yadav, Aldrin V Gomes, Thomas C Irving, Danuta Szczesna-Cordary
Dilated cardiomyopathy (DCM) is a devastating heart disease that affects about 1 million people in the United States, but the underlying mechanisms remain poorly understood. In this study, we aimed to determine the biomechanical and structural causes of DCM in transgenic mice carrying a novel mutation in the MYL2 gene, encoding the cardiac myosin regulatory light chain. Transgenic D94A (aspartic acid-to-alanine) mice were created and investigated by echocardiography and invasive hemodynamic and molecular structural and functional assessments...
February 20, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29462973/the-nordic-prudent-diet-reduces-risk-of-cognitive-decline-in-the-swedish-older-adults-a-population-based-cohort-study
#5
Behnaz Shakersain, Debora Rizzuto, Susanna C Larsson, Gerd Faxén-Irving, Laura Fratiglioni, Wei-Li Xu
Appropriate dietary pattern for preserving cognitive function in northern Europe remains unknown. We aimed to identify a Nordic dietary pattern index associated with slower cognitive decline compared to the Mediterranean-DASH Intervention for Neurodegenerative Delay, Mediterranean Diet, Dietary Approaches to Stop Hypertension, and Baltic Sea Diet indices. A total of 2223 dementia-free adults aged ≥60 were followed for 6 years. Mini-Mental State Examination was administrated at baseline and follow-ups. Dietary intake was assessed by 98-item food frequency questionnaire, and the Nordic Prudent Dietary Pattern (NPDP) was identified...
February 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29459026/prevalence-and-risk-of-protein-energy-wasting-assessed-by-subjective-global-assessment-in-older-adults-with-advanced-chronic-kidney-disease-results-from-the-equal-study
#6
Karin Windahl, Gerd Faxén Irving, Tora Almquist, Maarit Korkeila Lidén, Moniek van de Luijtgaarden, Nicholas C Chesnaye, Pauline Voskamp, Peter Stenvinkel, Marian Klinger, Maciej Szymczak, Claudia Torino, Maurizio Postorini, Christiane Drechsler, Fergus J Caskey, Christoph Wanner, Friedo W Dekker, Kitty J Jager, Marie Evans
OBJECTIVES: Prevalence and risk factors for protein-energy wasting (PEW) are poorly studied in the nondialysis, older population with advanced chronic kidney disease (CKD). Our aim was to evaluate the prevalence of PEW in advanced stage CKD patients aged greater than 65 years. Furthermore, we aimed to describe risk factors for PEW in the overall study population and among obese individuals. DESIGN: Prospective observational cohort study. METHODS: The EQUAL study, a European Quality Study on treatment in advanced chronic kidney disease, is a multicenter prospective observational cohort study in six European countries...
February 16, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29457379/levels-of-cytokines-and-micrornas-in-individuals-with-asymptomatic-hyperuricemia-and-ultrasonographic-findings-of-gout-a-bench-to-bedside-approach
#7
Irving O Estevez-Garcia, Selma Gallegos-Nava, Erika Vera-Pérez, Luis H Silveira, Lucio Ventura-Ríos, Gonzalo Vancini, Cristina Hernández-Díaz, Fausto Sánchez-Muñoz, Martha A Ballinas-Verdugo, Marwin Gutierrez, Carlos Pineda, Pedro Rodriguez-Henriquez, Diana Castillo-Martínez, Luis M Amezcua-Guerra
OBJECTIVE: To assess potential associations among serum cytokines and microRNA (miR) levels with ultrasound (US) findings suggestive of urate deposits in chronic asymptomatic hyperuricemia and gout. METHODS: All participants underwent musculoskeletal US and measurements of serum IL-1β, IL-2, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12, IL-13, IFN-γ, TNF, MCP-1, and ENA-78, as well as miR-146a, miR-155, and miR-223 levels. RESULTS: Thirty individuals with asymptomatic hyperuricemia, 31 normouricemic controls, and 30 gouty patients were included...
February 18, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29455298/patient-reported-predictors-of-early-treatment-discontinuation-treatment-related-symptoms-and-health-related-quality-of-life-among-postmenopausal-women-with-primary-breast-cancer-randomized-to-anastrozole-or-exemestane-on-ncic-clinical-trials-group-cctg-ma
#8
Lynne I Wagner, Fengmin Zhao, Paul E Goss, Judith-Anne W Chapman, Lois E Shepherd, Timothy J Whelan, Bassam I Mattar, Jose A Bufill, William C Schultz, Irving E LaFrancis, Gauri G Nagargoje, Radhakrishna Vemuri, Daniel A Nikcevich, George W Sledge, David Cella
PURPOSE: Aromatase inhibitors are the most commonly prescribed adjuvant endocrine therapy for hormone-dependent early breast cancer in postmenopausal women. Among Canadian Cancer Trials Group MA.27 participants, anastrozole and exemestane had comparable 5-year event-free survival. This companion study examined differences in patient-reported treatment-related symptoms (TRS) and health-related quality of life (HRQL) among postmenopausal women randomized to anastrozole or exemestane. METHODS: MA...
February 17, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29454673/remote-ischemic-preconditioning-a-complex-question-with-an-even-more-complex-answer
#9
EDITORIAL
Sarah A Schubert, Irving L Kron
No abstract text is available yet for this article.
February 15, 2018: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29454669/rabbits-and-the-specious-origins-of-domestication
#10
Evan K Irving-Pease, Laurent A F Frantz, Naomi Sykes, Cécile Callou, Greger Larson
Rabbits are commonly thought to have been domesticated in ∼AD600 by French monks. Using historical and archaeological records, and genetic methods, we demonstrate that this is a misconception and the general inability to date domestication stems from both methodological biases and the lack of appreciation of domestication as a continuum.
January 27, 2018: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/29454375/-sweeter-than-a-rose-at-least-to-triatoma-phyllosoma-complex-males-triatominae-reduviidae
#11
Irving J May-Concha, Leopoldo C Cruz-López, Julio C Rojas, Janine M Ramsey
BACKGROUND: The Triatoma phyllosoma complex of Trypanosoma cruzi vectors (Triatominae: Reduviidae) is distributed in both Neotropical and Nearctic bioregions of Mexico. METHODS: Volatile organic compounds emitted by disturbed Triatoma longipennis, Triatoma pallidipennis and Triatoma phyllosoma, and from their Brindley's and metasternal glands, were identified using solid-phase microextraction coupled with gas chromatography-mass spectrometry. RESULTS: Disturbed bugs and the metasternal glands from T...
February 17, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29452157/hypertrophic-cardiomyopathy-mutation-r58q-in-the-myosin-regulatory-light-chain-perturbs-thick-filament-based-regulation-in-cardiac-muscle
#12
Thomas Kampourakis, Saraswathi Ponnam, Malcolm Irving
Hypertrophic cardiomyopathy (HCM) is frequently linked to mutations in the protein components of the myosin-containing thick filaments leading to contractile dysfunction and ultimately heart failure. However, the molecular structure-function relationships that underlie these pathological effects remain largely obscure. Here we chose an example mutation (R58Q) in the myosin regulatory light chain (RLC) that is associated with a severe HCM phenotype and combined the results from a wide range of in vitro and in situ structural and functional studies on isolated protein components, myofibrils and ventricular trabeculae to create an extensive map of structure-function relationships...
February 13, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29451350/an-economic-assessment-of-contemporary-kidney-transplant-practice
#13
David Axelrod, Mark A Schnitzler, Huiling Xiao, William Irish, Elizabeth Tuttle-Newhall, Su-Hsin Chang, Bertram L Kasiske, Tarek Alhamad, Krista L Lentine
Kidney transplant is the optimal therapy for end stage renal disease, prolonging survival and reducing healthcare spending. Prior economic analyses of kidney transplant using Markov models, have generally assumed compatible, low risk, donors. The economic implications of using deceased donor kidneys with high kidney donor profile index (KPDI) scores, ABO incompatible or HLA incompatible living donors has not been assessed. The costs of transplant and dialysis were compared using discrete event simulation over a 10-year period, using data from the United States Renal Data System, Vizient ™ (Irving, Texas), and literature review...
February 16, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29450831/comparison-of-different-strategies-for-providing-fecal-microbiota-transplantation-to-treat-patients-with-recurrent-clostridium-difficile-infection-in-two-english-hospitals-a-review
#14
REVIEW
Simon D Goldenberg, Rahul Batra, Ian Beales, Jonathan Leith Digby-Bell, Peter Miles Irving, Lee Kellingray, Arjan Narbad, Ngozi Franslem-Elumogo
Fecal microbiota transplant (FMT) has emerged as a highly efficacious treatment for difficult cases of refractory and/or recurrent Clostridium difficile infection (CDI). There have been many well-conducted randomized controlled trials and thousands of patients reported in case series that describe success rates of approximately 90% following one or more FMT. Although the exact mechanisms of FMT have yet to be fully elucidated, replacement or restoration of a 'normal' microbiota (or at least a microbiota resembling those who have never had CDI) appears to have a positive effect on the gut dysbiosis that is thought to exist in these patients...
February 15, 2018: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/29449136/sexual-orientation-discordance-and-nonfatal-suicidal-behaviors-in-u-s-high-school-students
#15
Francis B Annor, Heather B Clayton, Leah K Gilbert, Asha Z Ivey-Stephenson, Shalon M Irving, Corinne David-Ferdon, Laura K Kann
INTRODUCTION: Studies among adults have documented association between sexual orientation discordance and some suicide risk factors. However, studies examining sexual orientation discordance and nonfatal suicidal behaviors in youth are rare. This study examines the association between sexual orientation discordance and suicidal ideation/suicide attempts among a nationally representative sample of U.S. high school students. METHODS: Using sexual identity and sex of sexual contact measures from the 2015 national Youth Risk Behavior Survey (n=6,790), a sexual orientation discordance variable was constructed describing concordance and discordance (agreement and disagreement, respectively, between sexual identity and sex of sexual contacts)...
February 8, 2018: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29445219/comparative-toxicity-of-five-dispersants-to-coral-larvae
#16
A P Negri, H M Luter, R Fisher, D L Brinkman, P Irving
Oil spill responders require information on the absolute and relative toxicities of chemical dispersants to relevant receptor species to assess their use in spill response. However, little toxicity data are available for tropical marine species including reef-building corals. In this study, we experimentally assessed the sub-lethal toxicity of five dispersants to larvae of the coral Acropora millepora over three short exposure periods (2, 6 and 24 h) reflecting real-world spill response scenario durations. Inhibition of larval settlement increased rapidly between 2 and 6 h, and was highest at 24 h: EC 50 Corexit EC9500A = 4...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29435973/inhibition-of-experimental-small-cell-and-non-small-cell-lung-cancers-by-novel-antagonists-of-growth-hormone-releasing-hormone
#17
Haibo Wang, Xianyang Zhang, Irving Vidaurre, Renzhi Cai, Wei Sha, Andrew V Schally
We investigated the effects of novel antagonists of growth hormone releasing hormone (GHRH), MIA602 and MIA690, on three human small cell lung cancer (SCLC) lines (H446, DMS53 and H69) and two non-SCLC (NSCLC) lines (HCC827 and H460). In vitro exposure of cancer cells to these GHRH antagonists significantly inhibited cell viability, increased cell apoptosis, decrease cellular levels of cAMP and reduced cell migration. In vivo, the antagonists strongly inhibited tumor growth in xenografted nude mice models. Subcutaneous administration of MIA602 at the dose of 5μg/day for 4-8 weeks reduced the growth of HCC827, H460 and H446 tumors by 69...
February 13, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29433886/expanding-the-donor-lung-pool-how-many-donations-after-circulatory-death-organs-are-we-missing
#18
William Zachary Chancellor, Eric J Charles, James Hunter Mehaffey, Robert B Hawkins, Carrie A Foster, Ashish K Sharma, Victor E Laubach, Irving L Kron, Curtis G Tribble
BACKGROUND: The number of patients with end-stage pulmonary disease awaiting lung transplantation is at an all-time high, while the supply of available organs remains stagnant. Utilizing donation after circulatory death (DCD) donors may help to address the supply-demand mismatch. The objective of this study is to determine the potential donor pool expansion with increased procurement of DCD organs from patients who die at hospitals. MATERIAL AND METHODS: The charts of all patients who died at a single, rural, quaternary-care institution between August 2014 and June 2015 were reviewed for lung transplant candidacy...
March 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29415015/inpatient-mortality-rates-during-an-era-of-increased-access-to-hiv-testing-and-art-a-prospective-observational-study-in-lilongwe-malawi
#19
Mitch M Matoga, Nora E Rosenberg, Christopher C Stanley, Sylvia LaCourse, Charles K Munthali, Dominic P Nsona, Bryce Haac, Irving Hoffman, Mina C Hosseinipour
BACKGROUND: In the era of increased access to HIV testing and antiretroviral treatment (ART), the impact of HIV and ART status on inpatient mortality in Malawi is unknown. METHODS: We prospectively followed adult inpatients at Kamuzu Central Hospital medical wards in Lilongwe, Malawi, between 2011 and 2012, to evaluate causes of mortality, and the impact of HIV and ART status on mortality. We divided the study population into five categories: HIV-negative, new HIV-positive, ART-naïve patients, new ART-initiators, and ART-experienced...
2018: PloS One
https://www.readbyqxmd.com/read/29413391/mentoring-the-next-generation-irving-weissman
#20
(no author information available yet)
Mentor-mentee relationships are essential for professional development, but developing these interpersonal skills is not often highlighted as a priority in scientific endeavors. In a yearlong series, Cell Stem Cell interviews prominent scientists who have prioritized mentorship over the years. Here, we chat with Dr. Irving Weissman about his views.
February 1, 2018: Cell Stem Cell
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