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https://www.readbyqxmd.com/read/28642016/electrospun-vascular-scaffold-for-cellularized-small-diameter-blood-vessels-a-preclinical-large-animal-study
#1
Young Min Ju, Hyunhee Ahn, Juan Arenas-Herrera, Cheil Kim, Mehran Abolbashari, Anthony Atala, James J Yoo, Sang Jin Lee
The strategy of vascular tissue engineering is to create a vascular substitute by combining autologous vascular cells with a tubular-shaped biodegradable scaffold. We have previously developed a novel electrospun bilayered vascular scaffold that provides proper biological and biomechanical properties as well as structural configuration. In this study, we investigated the clinical feasibility of a cellularized vascular scaffold in a preclinical large animal model. We fabricated the cellularized vascular construct with autologous endothelial progenitor cell (EPC)-derived endothelial cells (ECs) and smooth muscle cells (SMCs) followed by a pulsatile bioreactor preconditioning...
June 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28636934/the-tmao-producing-enzyme-flavin-containing-monooxygenase-3-regulates-obesity-and-the-beiging-of-white-adipose-tissue
#2
Rebecca C Schugar, Diana M Shih, Manya Warrier, Robert N Helsley, Amy Burrows, Daniel Ferguson, Amanda L Brown, Anthony D Gromovsky, Markus Heine, Arunachal Chatterjee, Lin Li, Xinmin S Li, Zeneng Wang, Belinda Willard, YongHong Meng, Hanjun Kim, Nam Che, Calvin Pan, Richard G Lee, Rosanne M Crooke, Mark J Graham, Richard E Morton, Carl D Langefeld, Swapan K Das, Lawrence L Rudel, Nizar Zein, Arthur J McCullough, Srinivasan Dasarathy, W H Wilson Tang, Bernadette O Erokwu, Chris A Flask, Markku Laakso, Mete Civelek, Sathyamangla V Naga Prasad, Joerg Heeren, Aldons J Lusis, Stanley L Hazen, J Mark Brown
Emerging evidence suggests that microbes resident in the human intestine represent a key environmental factor contributing to obesity-associated disorders. Here, we demonstrate that the gut microbiota-initiated trimethylamine N-oxide (TMAO)-generating pathway is linked to obesity and energy metabolism. In multiple clinical cohorts, systemic levels of TMAO were observed to strongly associate with type 2 diabetes. In addition, circulating TMAO levels were associated with obesity traits in the different inbred strains represented in the Hybrid Mouse Diversity Panel...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28636057/symmetrical-brachydactyly-in-a-dog
#3
Megan T Cray, Ursula Krotscheck, Anthony J Fischetti, Kim Tong
Congenital malformations of the canine manus and pes are infrequently reported in the veterinary literature. This includes brachydactyly which is a general term used to indicate the shortening of digits due to abnormal development of the phalanges, metacarpals, or metatarsals. This case report describes isolated brachydactyly in a one-year-old male Maremma Sheepdog affecting all of the phalanges, metacarpals, and metatarsals of digits two through five. This condition was confirmed by determining the length of each phalanx, metacarpal, and metatarsal of the affected dog as well as an unaffected littermate...
June 21, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28635617/the-dosimetric-impact-of-gadolinium-based-contrast-media-in-gbm-brain-patient-plans-for-a-mri-linac
#4
Syed Bilal Ahmad, Moti Raj Paudel, Arman Sarfehnia, Anthony Kim, Geordi Pang, Mark Ruschin, Arjun Sahgal, Brian M Keller
Dosimetric effects of gadolinium based contrast media (Gadovist) were evaluated for the Elekta MRI Linear accelerator (MRL) using the research version of Monaco treatment planning system (TPS). In order to represent a gadolinium uptake it was manually assigned to a phantom as well as to the Gross Tumour Volume (GTV) of 6 Glioblastoma Multiforme (GBM) patients. A preliminary estimate of dose enhancement, due to gadolinium, was performed using the phantom irradiated with a single beam. More complicated assessment was performed for the GBM patients using a 7 field IMRT technique...
June 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28632987/the-usher-syndrome-type-iiib-histidyl-trna-synthetase-mutation-confers-temperature-sensitivity
#5
Jamie A Abbott, Ethan Guth, Cindy Kim, Cathy Regan, Victoria M Siu, Charles Anthony Rupar, Borries Demeler, Christopher S Francklyn, Susan M Robey-Bond
Histidyl-tRNA synthetase (HARS) is a highly conserved translation factor that plays an essential role in protein synthesis. HARS has been implicated in the human syndromes Charcot-Marie-Tooth (CMT) Type 2W and Type IIIB Usher (USH3B). The USH3B mutation, which encodes an Y454S substitution in HARS, is inherited in an autosomal recessive fashion and associated with childhood deafness, blindness and episodic hallucinations during acute illness. The biochemical basis of the pathophysiologies linked to USH3B is currently unknown...
June 20, 2017: Biochemistry
https://www.readbyqxmd.com/read/28622839/water-lavage-as-an-adjunct-to-cytoreductive-surgery-with-hyperthermic-intraperitoneal-chemotherapy-crs-hipec
#6
Emmanuel Gabriel, Smit Singla, Minhyung Kim, Daniel Fisher, Colin Powers, Anthony Visioni, Kristopher Attwood, Joseph Skitzki
BACKGROUND: Water lavage (WL) during gastrointestinal cancer surgery has osmotically mediated lytic effects on tumor cells. We investigated the safety and efficacy of WL with CRS-HIPEC. METHODS: This is a retrospective review, 1/2003-7/2014, of a single institution experience with CRS-HIPEC comparing patients who had WL (WL+) to those who did not (WL-). RESULTS: Of 157 CRS-HIPECs, 16 (10.2%) were WL+. WL+ had more PCI scores >20 compared to WL- (56...
June 6, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28613254/crispr-cas9-mediated-correction-of-the-fancd1-gene-in-primary-patient-cells
#7
Karolina Skvarova Kramarzova, Mark J Osborn, Beau R Webber, Anthony P DeFeo, Amber N McElroy, Chong Jai Kim, Jakub Tolar
Fanconi anemia (FA) is an inherited condition characterized by impaired DNA repair, physical anomalies, bone marrow failure, and increased incidence of malignancy. Gene editing holds great potential to precisely correct the underlying genetic cause such that gene expression remains under the endogenous control mechanisms. This has been accomplished to date only in transformed cells or their reprogrammed induced pluripotent stem cell counterparts; however, it has not yet been reported in primary patient cells...
June 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28606678/atrial-fibrillation-inducibility-during-cavo-tricuspid-isthmus-dependent-atrial-flutter-ablation-for-the-prediction-of-clinical-atrial-fibrillation
#8
Jorge Romero, Rodolfo Estrada, Anthony Holmes, David Goodman-Meza, Juan Carlos Diaz, David Briceño, Saurabh Kumar, Samuel H Baldinger, Carolina R Valencia, Norman Roth, John D Fisher, Jay Gross, Andrew Krumerman, Kevin Ferrick, Soo Kim, Ileana L Piña, Mario Garcia, Luigi Di Biase
BACKGROUND: Atrial fibrillation (AF) and cavo-tricuspid isthmus (CTI) dependent atrial flutter (AFL) are two separate entities that coexist in a significant percentage of patients. METHODS: We sought to investigate whether AF inducibility during CTI AFL ablation predicted the occurrence of AF at follow up after AFL ablation. Univariate and multivariate analyses were performed. RESULTS: A total of 154 patients (male: 72%, age: 61±13) with AFL and without history of AF were included...
August 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28604347/treating-psoriasis-and-psoriatic-arthritis-position-paper-on-applying-the-treat-to-target-concept-to-canadian-daily-practice
#9
Dafna D Gladman, Yves Poulin, Karen Adams, Marc Bourcier, Snezana Barac, Kirk Barber, Vinod Chandran, Jan Dutz, Cathy Flanagan, Melinda J Gooderham, Wayne P Gulliver, Vincent C Ho, Chih-Ho Hong, Jacob Karsh, Majed M Khraishi, Charles W Lynde, Kim A Papp, Proton Rahman, Sherry Rohekar, Cheryl F Rosen, Anthony S Russell, Ronald B Vender, Jensen Yeung, Olga Ziouzina, Michel Zummer
OBJECTIVE: To develop preliminary treat-to-target (T2T) recommendations for psoriasis and psoriatic arthritis (PsA) for Canadian daily practice. METHODS: A task force composed of expert Canadian dermatologists and rheumatologists performed a needs assessment among Canadian clinicians treating these diseases as well as an extensive literature search on the outcome measures used in clinical trials and practice. RESULTS: Based on results from the needs assessment and literature search, the task force established 5 overarching principles and developed 8 preliminary T2T recommendations...
April 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28600297/the-premenopausal-breast-cancer-collaboration-a-pooling-project-of-studies-participating-in-the-national-cancer-institute-cohort-consortium
#10
Hazel B Nichols, Minouk J Schoemaker, Lauren B Wright, Craig McGowan, Mark N Brook, Kathleen M McClain, Michael E Jones, Hans-Olov Adami, Claudia Agnoli, Laura Baglietto, Leslie Bernstein, Kimberly A Bertrand, William J Blot, Marie-Christine Boutron-Ruault, Lesley Butler, Yu Chen, Michele M Doody, Laure Dossus, A Heather Eliassen, Graham G Giles, Inger T Gram, Susan E Hankinson, Judy Hoffman-Bolton, Rudolf Kaaks, Timothy J Key, Victoria A Kirsh, Cari M Kitahara, Woon-Puay Koh, Susanna C Larsson, Eiliv Lund, Huiyan Ma, Melissa A Merritt, Roger L Milne, Carmen Navarro, Kim Overvad, Kotaro Ozasa, Julie R Palmer, Petra H Peeters, Elio Riboli, Thomas E Rohan, Atsuko Sadakane, Malin Sund, Rulla M Tamimi, Antonia Trichopoulou, Lars Vatten, Kala Visvanathan, Elisabete Weiderpass, Walter C Willett, Alicja Wolk, Anne Zeleniuch-Jacquotte, Wei Zheng, Dale P Sandler, Anthony J Swerdlow
Breast cancer is a leading cancer diagnosis among premenopausal women around the world. Unlike rates in postmenopausal women, incidence rates of advanced breast cancer have increased in recent decades for premenopausal women. Progress in identifying contributors to breast cancer risk among premenopausal women has been constrained by the limited numbers of premenopausal breast cancer cases in individual studies and resulting low statistical power to subcategorize exposures or to study specific subtypes. The Premenopausal Breast Cancer Collaborative Group was established to facilitate cohort-based analyses of risk factors for premenopausal breast cancer by pooling individual-level data from studies participating in the United States National Cancer Institute Cohort Consortium...
June 9, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28598362/carbon-ion-radiotherapy-a-review-of-clinical-experiences-and-preclinical-research-with-an-emphasis-on-dna-damage-repair
#11
REVIEW
Osama Mohamad, Brock J Sishc, Janapriya Saha, Arnold Pompos, Asal Rahimi, Michael D Story, Anthony J Davis, D W Nathan Kim
Compared to conventional photon-based external beam radiation (PhXRT), carbon ion radiotherapy (CIRT) has superior dose distribution, higher linear energy transfer (LET), and a higher relative biological effectiveness (RBE). This enhanced RBE is driven by a unique DNA damage signature characterized by clustered lesions that overwhelm the DNA repair capacity of malignant cells. These physical and radiobiological characteristics imbue heavy ions with potent tumoricidal capacity, while having the potential for simultaneously maximally sparing normal tissues...
June 9, 2017: Cancers
https://www.readbyqxmd.com/read/28591635/hypothalamic-pituitary-axis-regulates-hydrogen-sulfide-production
#12
Christopher Hine, Hyo-Jeong Kim, Yan Zhu, Eylul Harputlugil, Alban Longchamp, Marina Souza Matos, Preeti Ramadoss, Kevin Bauerle, Lear Brace, John M Asara, C Keith Ozaki, Sheue-Yann Cheng, Subhankar Singha, Kyo Han Ahn, Alec Kimmelman, Ffolliott M Fisher, Pavlos Pissios, Dominic J Withers, Colin Selman, Rui Wang, Kelvin Yen, Valter D Longo, Pinchas Cohen, Andrzej Bartke, John J Kopchick, Richard Miller, Anthony N Hollenberg, James R Mitchell
Decreased growth hormone (GH) and thyroid hormone (TH) signaling are associated with longevity and metabolic fitness. The mechanisms underlying these benefits are poorly understood, but may overlap with those of dietary restriction (DR), which imparts similar benefits. Recently we discovered that hydrogen sulfide (H2S) is increased upon DR and plays an essential role in mediating DR benefits across evolutionary boundaries. Here we found increased hepatic H2S production in long-lived mouse strains of reduced GH and/or TH action, and in a cell-autonomous manner upon serum withdrawal in vitro...
June 6, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28586164/synthesis-of-5-6-bicyclic-heterocycles-with-a-ring-junction-nitrogen-via-rh-iii-catalyzed-c-h-functionalization-of-alkenyl-azoles
#13
Jonathan Anthony Ellman, Kim Halksov, Howard Roth
The first syntheses of privileged [5,6]-bicyclic heterocycles with ring-junction nitrogens by transition-metal-catalyzed C-H functionalization of C-alkenyl azoles is disclosed. Several reactions are applied to alkenyl imidazoles, pyrazoles and triazoles to provide products with nitrogen incorporated at different sites. Alkyne and diazoketone coupling partners give azolopyridines with various substitution patterns. In addition, 1,4,2-dioxazolone coupling partners yield azolopyrimidines. Furthermore, the mechanisms for the reactions are discussed and the utility of the developed approach is demonstrated by iterative application of C-H functionalization for the rapid synthesis of a patented drug candidate...
June 6, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28581738/identification-and-quantitation-of-furocoumarins-in-popularly-consumed-foods-in-the-u-s-using-quechers-extraction-coupled-with-uplc-ms-ms-analysis
#14
Melissa M Melough, Sang Gil Lee, Eunyoung Cho, Kijoon Kim, Anthony A Provatas, Christopher Perkins, Min Kyung Park, Abrar Qureshi, Ock K Chun
Furocoumarins are a class of photoactive compounds found in several plant species and may be responsible for the observed association between consumption of citrus products and the risk of skin cancer. Furocoumarin contents of several foods have been reported previously, but no comprehensive database of furocoumarin content of foods is currently available. Therefore, this study aimed to determine the distribution of furocoumarins in popularly consumed foods in the U.S. Samples of three varieties of each of 29 foods known or suspected to contain furocoumarins were purchased, prepared for analysis using a solid phase extraction method, and analyzed using UPLC-MS/MS for the presence of seven major furocoumarins...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28577947/indications-for-invasive-mediastinal-staging-in-patients-with-early-non-small-cell-lung-cancer-staged-with-pet-ct
#15
Sarah J Gao, Anthony W Kim, Jonathan T Puchalski, Kyle Bramley, Frank C Detterbeck, Daniel J Boffa, Roy H Decker
PURPOSE/OBJECTIVE(S): Appropriate use of invasive mediastinal staging in patients with clinically node-negative NSCLC staged by PET-CT is critical in selecting patients for curative-intent therapy such as surgery or SBRT, but little data exists to guide this decision-making. We examined a large population of patients with clinical stage I NSCLC referred for mediastinoscopy or EBUS to find risk factors for occult N2 lymph nodes and determine which patients benefit from invasive staging...
July 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28575523/safety-and-pharmacokinetic-study-of-fidaxomicin-in-children-with-clostridium-difficile-associated-diarrhea-a-phase-2a-multicenter-clinical-trial
#16
Molly A O'Gorman, Marian G Michaels, Sheldon L Kaplan, Anthony Otley, Larry K Kociolek, Edward J Hoffenberg, Kwang Sik Kim, Sharon Nachman, Marian D Pfefferkorn, Timothy Sentongo, Janice E Sullivan, Pamela Sears
Background.: Fidaxomicin is an approved therapy for Clostridium difficile-associated diarrhea (CDAD) in adults. The safety of fidaxomicin in children has not been reported. Methods.: In this study (ClinicalTrials.gov identifier NCT01591863), pediatric patients with CDAD received twice-daily oral fidaxomicin at a dose of 16 mg/kg per day (up to 200 mg) for 10 days in an open-label study. Plasma and fecal samples were collected for pharmacokinetic assessments. The primary outcome measure was safety, which was assessed by adverse-event (AE), laboratory, and physical examination/vital-sign monitoring...
May 31, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28575356/safety-of-induced-sputum-collection-in-children-hospitalized-with-severe-or-very-severe-pneumonia
#17
Andrea N DeLuca, Laura L Hammitt, Julia Kim, Melissa M Higdon, Henry C Baggett, W Abdullah Brooks, Stephen R C Howie, Maria Deloria Knoll, Karen L Kotloff, Orin S Levine, Shabir A Madhi, David R Murdoch, J Anthony G Scott, Donald M Thea, Tussanee Amornintapichet, Juliet O Awori, Somchai Chuananon, Amanda J Driscoll, Bernard E Ebruke, Lokman Hossain, Yasmin Jahan, E Wangeci Kagucia, Sidi Kazungu, David P Moore, Azwifarwi Mudau, Lawrence Mwananyanda, Daniel E Park, Christine Prosperi, Phil Seidenberg, Mamadou Sylla, Milagritos D Tapia, Syed M A Zaman, Katherine L O'Brien
Background.: Induced sputum (IS) may provide diagnostic information about the etiology of pneumonia. The safety of this procedure across a heterogeneous population with severe pneumonia in low- and middle-income countries has not been described. Methods.: IS specimens were obtained as part a 7-country study of the etiology of severe and very severe pneumonia in hospitalized children <5 years of age. Rigorous clinical monitoring was done before, during, and after the procedure to record oxygen requirement, oxygen saturation, respiratory rate, consciousness level, and other evidence of clinical deterioration...
June 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28557819/the-scholarly-influence-of-orthopaedic-research-according-to-conventional-and-alternative-metrics-a-systematic-review
#18
Nathan Evaniew, Anthony F Adili, Michelle Ghert, Moin Khan, Kim Madden, Christopher Smith, Mohit Bhandari
BACKGROUND: Researchers are experiencing an innovative shift toward online distribution of their work, and metrics related to online scholarly influence are gaining importance. Our objectives were to determine which types of online activity are most prevalent in orthopaedics, to identify associated factors, and to explore a complementary approach to measuring overall scholarly influence using online activity and conventional citations. METHODS: We performed a systematic review of randomized controlled trials of surgical or nonsurgical interventions in participants with, or at specific risk for, injuries and diseases of the musculoskeletal system...
May 30, 2017: JBJS Reviews
https://www.readbyqxmd.com/read/28549665/effects-of-supervised-exercise-and-dietary-nitrate-in-older-adults-with-controlled-hypertension-and-or-heart-failure-with-preserved-ejection-fraction
#19
Hossam A Shaltout, Joel Eggebeen, Anthony P Marsh, Peter H Brubaker, Paul J Laurienti, Jonathan H Burdette, Swati Basu, Ashley Morgan, Patricia C Dos Santos, James L Norris, Timothy M Morgan, Gary D Miller, W Jack Rejeski, Amret T Hawfield, Debra I Diz, J Thomas Becton, Daniel B Kim-Shapiro, Dalane W Kitzman
Aerobic exercise training is an effective therapy to improve peak aerobic power (peak VO2) in individuals with hypertension (HTN, AHA/ACC class A) and heart failure patients with preserved ejection fraction (HFpEF). High nitrate containing beetroot juice (BRJ) also improves sub-maximal endurance and decreases blood pressure in both HTN and HFpEF. We hypothesized that combining an aerobic exercise and dietary nitrate intervention would result in additive or even synergistic positive effects on exercise tolerance and blood pressure in HTN or HFpEF...
May 23, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28546427/spermidine-promotes-bacillus-subtilis-biofilm-formation-by-activating-expression-of-the-matrix-regulator-slrr
#20
Laura Hobley, Bin Li, Jennifer L Wood, Sok-Ho Kim, Jacinth Naidoo, Ana Sofia Ferreira, Maxim Khomutov, Alexey Khomutov, Nicola R Stanley-Wall, Anthony J Michael
Ubiquitous polyamine spermidine is not required for normal planktonic growth of Bacillus subtilis but is essential for robust biofilm formation. However, the structural features of spermidine required for B. subtilis biofilm formation are unknown and so are the molecular mechanisms of spermidine-stimulated biofilm development. We report here that in a spermidine-deficient B. subtilis mutant, the structural analogue norspermidine, but not homospermidine, restored biofilm formation. Intracellular biosynthesis of another spermidine analogue, aminopropylcadaverine, from exogenously supplied homoagmatine also restored biofilm formation...
May 25, 2017: Journal of Biological Chemistry
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