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https://www.readbyqxmd.com/read/29765742/crystal-structure-of-diaphorin-methanol-monosolvate-isolated-from-diaphorina-citri-kuwayama-the-insect-vector-of-citrus-greening-disease
#1
D Marian Szebenyi, Irina Kriksunov, Kevin J Howe, John S Ramsey, David G Hall, Michelle L Heck, Stuart B Krasnoff
The title compound C22 H39 NO9 ·CH3 OH [systematic name: ( S )- N -(( S )-{(2 S ,4 R ,6 R )-6-[( S )-2,3-di-hydroxy-prop-yl]-4-hy-droxy-5,5-di-methyl-tetra-hydro-2 H -pyran-2-yl}(hy-droxy)meth-yl)-2-hy-droxy-2-[(2 R ,5 R ,6 R )-2-meth-oxy-5,6-dimeth-yl-4-methyl-ene-tetra-hydro-2 H -pyran-2-yl]acetamide methanol monosolvate], was isolated from the Asian citrus psyllid, Diaphorina citri Kuwayama, and crystallizes in the space group P 21 . ' Candidatus Profftella armatura' a bacterial endosymbiont of D. citri , biosynthesizes diaphorin, which is a hybrid polyketide-nonribosomal peptide comprising two highly substituted tetra-hydro-pyran rings joined by an N -acyl aminal bridge [Nakabachi et al...
April 1, 2018: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29677013/low-carbohydrate-diets-for-the-treatment-of-obesity-and-type-2-diabetes
#2
Kevin D Hall, Stephanie T Chung
PURPOSE OF REVIEW: Summarize the physiological effects of low-carbohydrate diets as they relate to weight loss, glycemic control, and metabolic health. RECENT FINDINGS: Low-carbohydrate diets are at least as effective for weight loss as other diets, but claims about increased energy expenditure and preferential loss of body fat are unsubstantiated. Glycemic control and hyperinsulinemia are improved by low-carbohydrate diets, but insulin sensitivity and glucose-stimulated insulin secretion may be impaired, especially in the absence of weight loss...
April 18, 2018: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29618054/influence-of-residual-disease-following-surgical-resection-in-newly-diagnosed-glioblastoma-on-clinical-neurocognitive-and-patient-reported-outcomes
#3
William A Hall, Stephanie L Pugh, Jeffrey S Wefel, Terri S Armstrong, Mark R Gilbert, David G Brachman, Maria Werner-Wasik, Merideth M Wendland, Paul D Brown, Samuel T Chao, Kevin S Roof, H Ian Robins, Minesh P Mehta, Walter J Curran, Benjamin Movsas
BACKGROUND: The influence of subtotal resection (STR) on neurocognitive function (NCF), quality of life, and symptom burden in glioblastoma is unknown. If bevacizumab preferentially benefits patients with STR is unknown. OBJECTIVE: To examine these uncertainties. METHODS: NCF and patient reported outcomes (PRO) were prospectively collected in NRG Oncology RTOG 0525 and 0825. Changes in NCF and PRO measures from baseline to prespecified times were examined by Wilcoxon test, and mixed effects longitudinal modeling, to assess differences between patients who received STR vs gross-total resection...
March 30, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29575784/accumulating-data-to-optimally-predict-obesity-treatment-adopt-recommendations-from-the-biological-domain
#4
Michael Rosenbaum, Tanya Agurs-Collins, Molly S Bray, Kevin D Hall, Mark Hopkins, Maren Laughlin, Paul S MacLean, Padma Maruvada, Cary R Savage, Dana M Small, Luke Stoeckel
BACKGROUND: The responses to behavioral, pharmacological, or surgical obesity treatments are highly individualized. The Accumulating Data to Optimally Predict obesity Treatment (ADOPT) project provides a framework for how obesity researchers, working collectively, can generate the evidence base needed to guide the development of tailored, and potentially more effective, strategies for obesity treatment. OBJECTIVES: The objective of the ADOPT biological domain subgroup is to create a list of high-priority biological measures for weight-loss studies that will advance the understanding of individual variability in response to adult obesity treatments...
April 2018: Obesity
https://www.readbyqxmd.com/read/29490601/posterior-shoulder-tightness-to-treat-or-not-to-treat
#5
Kevin Hall, John D Borstad
Shoulder pain is a common musculoskeletal complaint that is difficult to treat because of the biomechanical complexity of the shoulder region, the interplay between mobility and stability, and the vital role played by the shoulder in moving, positioning, and providing stability for hand function. Despite advances in biomechanics and pain science, there is still much to learn about how impairments influence shoulder function and health. One impairment, posterior shoulder tightness (PST), is often noted in individuals with shoulder pain and consequently has generated much discussion and debate in recent years...
March 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29478781/biallelic-mutations-in-atp5f1d-which-encodes-a-subunit-of-atp-synthase-cause-a-metabolic-disorder
#6
Monika Oláhová, Wan Hee Yoon, Kyle Thompson, Sharayu Jangam, Liliana Fernandez, Jean M Davidson, Jennifer E Kyle, Megan E Grove, Dianna G Fisk, Jennefer N Kohler, Matthew Holmes, Annika M Dries, Yong Huang, Chunli Zhao, Kévin Contrepois, Zachary Zappala, Laure Frésard, Daryl Waggott, Erika M Zink, Young-Mo Kim, Heino M Heyman, Kelly G Stratton, Bobbie-Jo M Webb-Robertson, Michael Snyder, Jason D Merker, Stephen B Montgomery, Paul G Fisher, René G Feichtinger, Johannes A Mayr, Julie Hall, Ines A Barbosa, Michael A Simpson, Charu Deshpande, Katrina M Waters, David M Koeller, Thomas O Metz, Andrew A Morris, Susan Schelley, Tina Cowan, Marisa W Friederich, Robert McFarland, Johan L K Van Hove, Gregory M Enns, Shinya Yamamoto, Euan A Ashley, Michael F Wangler, Robert W Taylor, Hugo J Bellen, Jonathan A Bernstein, Matthew T Wheeler
ATP synthase, H+ transporting, mitochondrial F1 complex, δ subunit (ATP5F1D; formerly ATP5D) is a subunit of mitochondrial ATP synthase and plays an important role in coupling proton translocation and ATP production. Here, we describe two individuals, each with homozygous missense variants in ATP5F1D, who presented with episodic lethargy, metabolic acidosis, 3-methylglutaconic aciduria, and hyperammonemia. Subject 1, homozygous for c.245C>T (p.Pro82Leu), presented with recurrent metabolic decompensation starting in the neonatal period, and subject 2, homozygous for c...
March 1, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29457381/a-multicenter-study-of-the-validity-and-reliability-of-responses-to-hand-cold-challenge-as-measured-by-laser-speckle-contrast-imaging-and-thermography-outcome-measures-for-systemic-sclerosis-related-raynaud-s-phenomenon
#7
Jack D Wilkinson, Sarah A Leggett, Elizabeth J Marjanovic, Tonia L Moore, John Allen, Marina E Anderson, Jason Britton, Maya H Buch, Francesco Del Galdo, Christopher P Denton, Graham Dinsdale, Bridgett Griffiths, Frances Hall, Kevin Howell, Audrey MacDonald, Neil J McHugh, Joanne B Manning, John D Pauling, Christopher Roberts, Jacqueline A Shipley, Ariane L Herrick, Andrea K Murray
OBJECTIVE: Reliable and objective outcome measures to facilitate clinical trials of novel treatments for systemic sclerosis (SSc)-related Raynaud's phenomenon (RP) are badly needed. Laser speckle contrast imaging (LSCI) and thermography are noninvasive measures of perfusion that have shown excellent potential. This multicenter study was undertaken to determine the reliability and validity of a hand cold challenge protocol using LSCI, standard thermography, and low-cost cell phone/mobile phone thermography (henceforth referred to as mobile thermography) in patients with SSc-related RP...
February 18, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29392162/combining-intraoperative-ultrasound-brain-shift-correction-and-augmented-reality-visualizations-a-pilot-study-of-eight-cases
#8
Ian J Gerard, Marta Kersten-Oertel, Simon Drouin, Jeffery A Hall, Kevin Petrecca, Dante De Nigris, Daniel A Di Giovanni, Tal Arbel, D Louis Collins
We present our work investigating the feasibility of combining intraoperative ultrasound for brain shift correction and augmented reality (AR) visualization for intraoperative interpretation of patient-specific models in image-guided neurosurgery (IGNS) of brain tumors. We combine two imaging technologies for image-guided brain tumor neurosurgery. Throughout surgical interventions, AR was used to assess different surgical strategies using three-dimensional (3-D) patient-specific models of the patient's cortex, vasculature, and lesion...
April 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29275334/effect-of-rituximab-on-a-salivary-gland-ultrasound-score-in-primary-sj%C3%A3-gren-s-syndrome-results-of-the-tractiss-randomised-double-blind-multicentre-substudy
#9
Benjamin A Fisher, Colin C Everett, John Rout, John L O'Dwyer, Paul Emery, Costantino Pitzalis, Wan-Fai Ng, Andrew Carr, Colin T Pease, Elizabeth J Price, Nurhan Sutcliffe, Jimmy Makdissi, Anwar R Tappuni, Nagui S T Gendi, Frances C Hall, Sharon P Ruddock, Catherine Fernandez, Claire T Hulme, Kevin A Davies, Christopher John Edwards, Peter C Lanyon, Robert J Moots, Euthalia Roussou, Andrea Richards, Linda D Sharples, Michele Bombardieri, Simon J Bowman
OBJECTIVES: To compare the effects of rituximab versus placebo on salivary gland ultrasound (SGUS) in primary Sjögren's syndrome (PSS) in a multicentre, multiobserver phase III trial substudy. METHODS: Subjects consenting to SGUS were randomised to rituximab or placebo given at weeks 0, 2, 24 and 26, and scanned at baseline and weeks 16 and 48. Sonographers completed a 0-11 total ultrasound score (TUS) comprising domains of echogenicity, homogeneity, glandular definition, glands involved and hypoechoic foci size...
March 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29156185/maintenance-of-lost-weight-and-long-term-management-of-obesity
#10
REVIEW
Kevin D Hall, Scott Kahan
Weight loss can be achieved through a variety of modalities, but long-term maintenance of lost weight is much more challenging. Obesity interventions typically result in early weight loss followed by a weight plateau and progressive regain. This review describes current understanding of the biological, behavioral, and environmental factors driving this near-ubiquitous body weight trajectory and the implications for long-term weight management. Treatment of obesity requires ongoing clinical attention and weight maintenance-specific counseling to support sustainable healthful behaviors and positive weight regulation...
January 2018: Medical Clinics of North America
https://www.readbyqxmd.com/read/29130845/restrictive-or-liberal-red-cell-transfusion-for-cardiac-surgery
#11
RANDOMIZED CONTROLLED TRIAL
C David Mazer, Richard P Whitlock, Dean A Fergusson, Judith Hall, Emilie Belley-Cote, Katherine Connolly, Boris Khanykin, Alexander J Gregory, Étienne de Médicis, Shay McGuinness, Alistair Royse, François M Carrier, Paul J Young, Juan C Villar, Hilary P Grocott, Manfred D Seeberger, Stephen Fremes, François Lellouche, Summer Syed, Kelly Byrne, Sean M Bagshaw, Nian C Hwang, Chirag Mehta, Thomas W Painter, Colin Royse, Subodh Verma, Gregory M T Hare, Ashley Cohen, Kevin E Thorpe, Peter Jüni, Nadine Shehata
BACKGROUND: The effect of a restrictive versus liberal red-cell transfusion strategy on clinical outcomes in patients undergoing cardiac surgery remains unclear. METHODS: In this multicenter, open-label, noninferiority trial, we randomly assigned 5243 adults undergoing cardiac surgery who had a European System for Cardiac Operative Risk Evaluation (EuroSCORE) I of 6 or more (on a scale from 0 to 47, with higher scores indicating a higher risk of death after cardiac surgery) to a restrictive red-cell transfusion threshold (transfuse if hemoglobin level was <7...
November 30, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29071809/proportional-feedback-control-of-energy-intake-during-obesity-pharmacotherapy
#12
Kevin D Hall, Arjun Sanghvi, Britta Göbel
OBJECTIVE: Obesity pharmacotherapies result in an exponential time course for energy intake whereby large early decreases dissipate over time. This pattern of declining drug efficacy to decrease energy intake results in a weight loss plateau within approximately 1 year. This study aimed to elucidate the physiology underlying the exponential decay of drug effects on energy intake. METHODS: Placebo-subtracted energy intake time courses were examined during long-term obesity pharmacotherapy trials for 14 different drugs or drug combinations within the theoretical framework of a proportional feedback control system regulating human body weight...
December 2017: Obesity
https://www.readbyqxmd.com/read/28783044/phenotypic-and-pharmacogenetic-evaluation-of-patients-with-thiazide-induced-hyponatremia
#13
James S Ware, Louise V Wain, Sarath K Channavajjhala, Victoria E Jackson, Elizabeth Edwards, Run Lu, Keith Siew, Wenjing Jia, Nick Shrine, Sue Kinnear, Mahli Jalland, Amanda P Henry, Jenny Clayton, Kevin M O'Shaughnessy, Martin D Tobin, Victor L Schuster, Stuart Cook, Ian P Hall, Mark Glover
Thiazide diuretics are among the most widely used treatments for hypertension, but thiazide-induced hyponatremia (TIH), a clinically significant adverse effect, is poorly understood. Here, we have studied the phenotypic and genetic characteristics of patients hospitalized with TIH. In a cohort of 109 TIH patients, those with severe TIH displayed an extended phenotype of intravascular volume expansion, increased free water reabsorption, urinary prostaglandin E2 excretion, and reduced excretion of serum chloride, magnesium, zinc, and antidiuretic hormone...
September 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28601820/axillary-versus-innominate-artery-cannulation-for-antegrade-cerebral-perfusion-in-aortic-surgery-design-of-the-aortic-surgery-cerebral-protection-evaluation-ace-cardiolink-3-randomised-trial
#14
RANDOMIZED CONTROLLED TRIAL
Vinay Garg, Mark D Peterson, Michael Wa Chu, Maral Ouzounian, Roderick Gg MacArthur, John Bozinovski, Ismail El-Hamamsy, F Victor Chu, Ankit Garg, Judith Hall, Kevin E Thorpe, Natasha Dhingra, Hwee Teoh, Thomas R Marotta, David A Latter, Adrian Quan, Muhammad Mamdani, Peter Juni, C David Mazer, Subodh Verma
INTRODUCTION: Neurological injury remains the major cause of morbidity and mortality following open aortic arch repair. Systemic hypothermia along with antegrade cerebral perfusion (ACP) is the accepted cerebral protection approach, with axillary artery cannulation being the most common technique used to establish ACP. More recently, innominate artery cannulation has been shown to be a safe and efficacious method for establishing ACP. Inasmuch as there is a lack of high-quality data comparing axillary and innominate artery ACP, we have designed a randomised, multi-centre clinical trial to compare both cerebral perfusion strategies with regards to brain morphological injury using diffusion-weighted MRI (DW-MRI)...
June 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28589124/a-multidisciplinary-phenotyping-and-genotyping-analysis-of-a-mapping-population-enables-quality-to-be-combined-with-yield-in-rice
#15
Mariafe Calingacion, Roland Mumm, Kevin Tan, Lenie Quiatchon-Baeza, Jeanaflor C T Concepcion, Jos A Hageman, Sangeeta Prakash, Melissa Fitzgerald, Robert D Hall
In this study a mapping population (F8) of ca 200 progeny from a cross between the commercial rice varieties Apo and IR64 has been both genotyped and phenotyped. A genotyping-by-sequencing approach was first used to identify 2,681 polymorphic SNP markers which gave dense coverage of the genome with a good distribution across all 12 chromosomes. The coefficient of parentage was also low, at 0.13, confirming that the parents are genetically distant from each other. The progeny, together with both parents, were grown under irrigated and water restricted conditions in a randomised block design...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28581512/structural-basis-for-the-cooperative-allosteric-activation-of-the-free-fatty-acid-receptor-gpr40
#16
Jun Lu, Noel Byrne, John Wang, Gerard Bricogne, Frank K Brown, Harry R Chobanian, Steven L Colletti, Jerry Di Salvo, Brande Thomas-Fowlkes, Yan Guo, Dawn L Hall, Jennifer Hadix, Nicholas B Hastings, Jeffrey D Hermes, Thu Ho, Andrew D Howard, Hubert Josien, Maria Kornienko, Kevin J Lumb, Michael W Miller, Sangita B Patel, Barbara Pio, Christopher W Plummer, Bradley S Sherborne, Payal Sheth, Sarah Souza, Srivanya Tummala, Clemens Vonrhein, Maria Webb, Samantha J Allen, Jennifer M Johnston, Adam B Weinglass, Sujata Sharma, Stephen M Soisson
Clinical studies indicate that partial agonists of the G-protein-coupled, free fatty acid receptor 1 GPR40 enhance glucose-dependent insulin secretion and represent a potential mechanism for the treatment of type 2 diabetes mellitus. Full allosteric agonists (AgoPAMs) of GPR40 bind to a site distinct from partial agonists and can provide additional efficacy. We report the 3.2-Å crystal structure of human GPR40 (hGPR40) in complex with both the partial agonist MK-8666 and an AgoPAM, which exposes a novel lipid-facing AgoPAM-binding pocket outside the transmembrane helical bundle...
July 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28390057/mechanical-properties-of-6-finger-trap-suture-techniques
#17
Naomi F Earley, Lee B Meakin, Kevin J Parsons, John Tarlton, Jon L Hall
OBJECTIVE: To identify the most common methods used by surgeons to place finger-trap sutures (FTS), and determine their influence on the biomechanical properties of constructs. STUDY DESIGN: Questionnaire and experimental study. METHODS: Six commonly used FTS methods (A-F) were identified from literature review and questionnaire. Constructs made with 3-metric nylon suture and 18-French polyurethane esophagostomy tubing were tested in axial loading to failure...
August 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28348869/nasp-an-accurate-rapid-method-for-the-identification-of-snps-in-wgs-datasets-that-supports-flexible-input-and-output-formats
#18
Jason W Sahl, Darrin Lemmer, Jason Travis, James M Schupp, John D Gillece, Maliha Aziz, Elizabeth M Driebe, Kevin P Drees, Nathan D Hicks, Charles Hall Davis Williamson, Crystal M Hepp, David Earl Smith, Chandler Roe, David M Engelthaler, David M Wagner, Paul Keim
Whole-genome sequencing (WGS) of bacterial isolates has become standard practice in many laboratories. Applications for WGS analysis include phylogeography and molecular epidemiology, using single nucleotide polymorphisms (SNPs) as the unit of evolution. NASP was developed as a reproducible method that scales well with the hundreds to thousands of WGS data typically used in comparative genomics applications. In this study, we demonstrate how NASP compares with other tools in the analysis of two real bacterial genomics datasets and one simulated dataset...
August 2016: Microbial Genomics
https://www.readbyqxmd.com/read/28346407/insights-into-activity-and-inhibition-from-the-crystal-structure-of-human-o-glcnacase
#19
Nathaniel L Elsen, Sangita B Patel, Rachael E Ford, Dawn L Hall, Fred Hess, Hari Kandula, Maria Kornienko, John Reid, Harold Selnick, Jennifer M Shipman, Sujata Sharma, Kevin J Lumb, Stephen M Soisson, Daniel J Klein
O-GlcNAc hydrolase (OGA) catalyzes removal of βα-linked N-acetyl-D-glucosamine from serine and threonine residues. We report crystal structures of Homo sapiens OGA catalytic domain in apo and inhibited states, revealing a flexible dimer that displays three unique conformations and is characterized by subdomain α-helix swapping. These results identify new structural features of the substrate-binding groove adjacent to the catalytic site and open new opportunities for structural, mechanistic and drug discovery activities...
June 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28296257/randomized-controlled-trial-of-rituximab-and-cost-effectiveness-analysis-in-treating-fatigue-and-oral-dryness-in-primary-sj%C3%A3-gren-s-syndrome
#20
RANDOMIZED CONTROLLED TRIAL
Simon J Bowman, Colin C Everett, John L O'Dwyer, Paul Emery, Costantino Pitzalis, Wan-Fai Ng, Colin T Pease, Elizabeth J Price, Nurhan Sutcliffe, Nagui S T Gendi, Frances C Hall, Sharon P Ruddock, Catherine Fernandez, Catherine Reynolds, Claire T Hulme, Kevin A Davies, Christopher J Edwards, Peter C Lanyon, Robert J Moots, Euthalia Roussou, Ian P Giles, Linda D Sharples, Michele Bombardieri
OBJECTIVE: To investigate whether rituximab, an anti-B cell therapy, improves symptoms of fatigue and oral dryness in patients with primary Sjögren's syndrome (SS). METHODS: We conducted a multicenter, randomized, double-blind, placebo-controlled, parallel-group trial that included health economic analysis. Anti-Ro-positive patients with primary SS, symptomatic fatigue, and oral dryness were recruited from 25 UK rheumatology clinics from August 2011 to January 2014...
July 2017: Arthritis & Rheumatology
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