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david ludwig

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https://www.readbyqxmd.com/read/28694840/hepatic-adipocyte-enteric-and-pancreatic-hormones-response-to-dietary-macronutrient-composition-and-relationship-with-metabolism
#1
Bridget M Hron, Cara B Ebbeling, Henry A Feldman, David S Ludwig
BACKGROUND: We sought to characterize the effects of dietary macronutrient composition on various hormones implicated in the regulation of insulin sensitivity (IS) and energy expenditure (EE). METHODS: Following 10-15% weight loss, 21 overweight subjects consumed 3 weight-loss maintenance diets [low fat (LF), low glycemic index (LGI) and very low carbohydrate (VLC)] in random order, each for 4 weeks. At baseline and at the end of each treatment period, fasting samples for fibroblast growth factor (FGF)-21, heme-oxygenase-1 (HO-1), chemerin, irisin, secreted frizzle-related protein (SFRP-4), total bile acids, ghrelin, gastrin inhibitory peptide (GIP), peptide-Y, and amylin; hepatic and peripheral IS; and EE were obtained...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28684310/selective-inhibition-of-plasma-membrane-calcium-atpase-4-improves-angiogenesis-and-vascular-reperfusion
#2
Sathishkumar Kurusamy, Dolores López-Maderuelo, Robert Little, David Cadagan, Aaron M Savage, Jude C Ihugba, Rhiannon R Baggott, Farjana B Rowther, Sara Martínez-Martínez, Pablo Gómez-Del Arco, Clare Murcott, Weiguang Wang, J Francisco Nistal, Delvac Oceandy, Ludwig Neyses, Robert N Wilkinson, Elizabeth J Cartwright, Juan Miguel Redondo, Angel Luis Armesilla
AIMS: Ischaemic cardiovascular disease is a major cause of morbidity and mortality worldwide. Despite promising results from pre-clinical animal models, VEGF-based strategies for therapeutic angiogenesis have yet to achieve successful reperfusion of ischaemic tissues in patients. Failure to restore efficient VEGF activity in the ischaemic organ remains a major problem in current pro-angiogenic therapeutic approaches. Plasma membrane calcium ATPase 4 (PMCA4) negatively regulates VEGF-activated angiogenesis via inhibition of the calcineurin/NFAT signalling pathway...
July 3, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28658271/regulatory-t-cell-frequencies-and-phenotypes-following-anti-viral-vaccination
#3
A Charlotte M T de Wolf, Susan van Aalst, Irene S Ludwig, Caroline L Bodinham, David J Lewis, Ruurd van der Zee, Willem van Eden, Femke Broere
Regulatory T cells (Treg) function in the prevention of excessive inflammation and maintenance of immunological homeostasis. However, these cells may also interfere with resolution of infections or with immune reactions following vaccination. Effects of Treg on vaccine responses are nowadays investigated, but the impact of vaccination on Treg homeostasis is still largely unknown. This may be a relevant safety aspect, since loss of tolerance through reduced Treg may trigger autoimmunity. In exploratory clinical trials, healthy adults were vaccinated with an influenza subunit vaccine plus or minus the adjuvant MF59®, an adjuvanted hepatitis B subunit vaccine or a live attenuated yellow fever vaccine...
2017: PloS One
https://www.readbyqxmd.com/read/28628599/combat-casualty-care-research-for-the-multidomain-battlefield
#4
Todd E Rasmussen, David G Baer, Kyle N Remick, George V Ludwig
No abstract text is available yet for this article.
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28615220/confounding-in-ex-vivo-models-of-diamond-blackfan-anemia
#5
Jacob C Ulirsch, Caleb Lareau, Leif S Ludwig, Narla Mohandas, David G Nathan, Vijay G Sankaran
No abstract text is available yet for this article.
June 14, 2017: Blood
https://www.readbyqxmd.com/read/28534669/reply-to-lipworth-and-jabbal-and-to-singh-and-vestbo
#6
David A Lipson, Helen Barnacle, Ruby Birk, Noushin Brealey, Nicholas Locantore, David A Lomas, Andrea Ludwig-Sengpiel, Rajat Mohindra, Maggie Tabberer, Chang-Qing Zhu, Steven J Pascoe
No abstract text is available yet for this article.
May 23, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28512753/serum-neurofilament-light-a-biomarker-of-neuronal-damage-in-multiple-sclerosis
#7
Giulio Disanto, Christian Barro, Pascal Benkert, Yvonne Naegelin, Sabine Schädelin, Antonella Giardiello, Chiara Zecca, Kaj Blennow, Henrik Zetterberg, David Leppert, Ludwig Kappos, Claudio Gobbi, Jens Kuhle
OBJECTIVE: Neurofilament light chains (NfL) are unique to neuronal cells, are shed to the cerebrospinal fluid (CSF), and are detectable at low concentrations in peripheral blood. Various diseases causing neuronal damage have resulted in elevated CSF concentrations. We explored the value of an ultrasensitive single-molecule array (Simoa) serum NfL (sNfL) assay in multiple sclerosis (MS). METHODS: sNfL levels were measured in healthy controls (HC, n = 254) and two independent MS cohorts: (1) cross-sectional with paired serum and CSF samples (n = 142), and (2) longitudinal with repeated serum sampling (n = 246, median follow-up = 3...
June 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28406682/overcoming-indecision-by-changing-the-decision-boundary
#8
Gaurav Malhotra, David S Leslie, Casimir J H Ludwig, Rafal Bogacz
The dominant theoretical framework for decision making asserts that people make decisions by integrating noisy evidence to a threshold. It has recently been shown that in many ecologically realistic situations, decreasing the decision boundary maximizes the reward available from decisions. However, empirical support for decreasing boundaries in humans is scant. To investigate this problem, we used an ideal observer model to identify the conditions under which participants should change their decision boundaries with time to maximize reward rate...
June 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28384123/magnetic-resonance-imaging-with-hyperpolarized-agents-methods-and-applications
#9
Erin B Adamson, Kai D Ludwig, David G Mummy, Sean B Fain
In the past decade, hyperpolarized (HP) contrast agents have been under active development for MRI applications to address the twin challenges of functional and quantitative imaging. Both HP helium ((3)He) and xenon ((129)Xe) gases have reached the stage where they are under study in clinical research. HP (129)Xe, in particular, is poised for larger scale clinical research to investigate asthma, chronic obstructive pulmonary disease, and fibrotic lung diseases. With advances in polarizer technology and unique capabilities for imaging of (129)Xe gas exchange into lung tissue and blood, HP (129)Xe MRI is attracting new attention...
July 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28376019/combat-casualty-care-research-for-the-multi-domain-battlefield
#10
Todd E Rasmussen, David G Baer, Kyle N Remick, George V Ludwig
No abstract text is available yet for this article.
April 4, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28375647/fulfil-trial-once-daily-triple-therapy-in-patients-with-chronic-obstructive-pulmonary-disease
#11
David A Lipson, Helen Barnacle, Ruby Birk, Noushin Brealey, Nicholas Locantore, David A Lomas, Andrea Ludwig-Sengpiel, Rajat Mohindra, Maggie Tabberer, Chang-Qing Zhu, Steven J Pascoe
RATIONALE: Randomized data comparing triple therapy with dual inhaled corticosteroid (ICS)/long-acting β2-agonist (LABA) therapy in patients with chronic obstructive pulmonary disease (COPD) are limited. OBJECTIVES: We compared the effects of once-daily triple therapy on lung function and health-related quality of life with twice-daily ICS/LABA therapy. METHODS: FULFIL was a randomized, double-blind, double-dummy study comparing 24 weeks of once-daily triple therapy (fluticasone furoate/umeclidinium/vilanterol 100 μg/62...
April 4, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28302395/social-cognition-psychometric-evaluation-scope-in-people-with-early-psychosis-a-preliminary-study
#12
Kelsey A Ludwig, Amy E Pinkham, Philip D Harvey, Skylar Kelsven, David L Penn
Social cognition is an important outcome in schizophrenia research. Unfortunately, there has been a lack of consensus regarding which measures of social cognition best capture this domain of functioning. The Social Cognition Psychometric Evaluation (SCOPE) study was developed to address the need for a battery of measures that have sound psychometric properties and can be implemented in clinical trials for individuals with chronic schizophrenia. The current study expands upon the SCOPE study by examining the psychometric properties of the eight candidate measures administered to individuals early in the course of psychosis...
March 14, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28296229/phytosterol-mediated-inhibition-of-intestinal-cholesterol-absorption-in-mice-is-independent-of-liver-x-receptor
#13
Lídia Cedó, David Santos, Iziar A Ludwig, Reija Silvennoinen, Annabel García-León, Leena Kaipiainen, José M Carbó, Annabel F Valledor, Helena Gylling, Maria-José Motilva, Petri T Kovanen, Miriam Lee-Rueckert, Francisco Blanco-Vaca, Joan Carles Escolà-Gil
SCOPE: Previous studies have proposed that phytosterols activate liver X receptors (LXR) in the intestine, thereby reducing intestinal cholesterol absorption and promoting fecal cholesterol excretion. METHODS AND RESULTS: In the present study, we examined the effects of dietary phytosterol supplementation on intestinal cholesterol absorption and fecal neutral sterol excretion in LXRαβ-deficient mice, and wild-type mice treated with synthetic high-affinity LXRαβ agonists...
March 15, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28273214/integrated-predictive-model-for-prostatic-cancer-using-clinical-laboratory-and-ultrasound-data
#14
Gustavo David Ludwig, Henrique Peres Rocha, Lúcio José Botelho, Maiara Brusco Freitas
OBJECTIVE: to develop a predictive model to estimate the probability of prostate cancer prior to biopsy. METHODS: from September 2009 to January 2014, 445 men underwent prostate biopsy in a radiology service. We excluded from the study patients with diseases that could compromise the data analysis, who had undergone prostatic resection or used 5-alpha-reductase inhibitors. Thus, we selected 412 patients. Variables included in the model were age, prostate specific antigen (PSA), digital rectal examination, prostate volume and abnormal sonographic findings...
December 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28264082/effects-of-advice-to-drink-8-cups-of-water-per-day-in-adolescents-with-overweight-or-obesity-a-randomized-clinical-trial
#15
RANDOMIZED CONTROLLED TRIAL
Julia M W Wong, Cara B Ebbeling, Lisa Robinson, Henry A Feldman, David S Ludwig
Importance: Health care professionals commonly recommend increased water consumption, typically to 8 cups per day, as part of a weight-reducing diet. However, this recommendation is based on limited evidence and virtually no experimental data from the pediatric population. Objective: To compare 2 standardized weight-loss diets among adolescents with overweight or obesity, either with or without additional advice and behavioral support to increase habitual water intake to 8 cups per day...
May 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28237634/geographic-information-systems-to-assess-external-validity-in-randomized-trials
#16
Margaret R Savoca, David A Ludwig, Stedman T Jones, K Jason Clodfelter, Joseph B Sloop, Linda Y Bollhalter, Alain G Bertoni
INTRODUCTION: To support claims that RCTs can reduce health disparities (i.e., are translational), it is imperative that methodologies exist to evaluate the tenability of external validity in RCTs when probabilistic sampling of participants is not employed. Typically, attempts at establishing post hoc external validity are limited to a few comparisons across convenience variables, which must be available in both sample and population. A Type 2 diabetes RCT was used as an example of a method that uses a geographic information system to assess external validity in the absence of a priori probabilistic community-wide diabetes risk sampling strategy...
February 22, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28211560/carfilzomib-lenalidomide-and-dexamethasone-in-patients-with-relapsed-multiple-myeloma-categorised-by-age-secondary-analysis-from-the-phase-3-aspire-study
#17
Meletios A Dimopoulos, A Keith Stewart, Tamás Masszi, Ivan Špička, Albert Oriol, Roman Hájek, Laura Rosiñol, David Siegel, Georgi G Mihaylov, Vesselina Goranova-Marinova, Péter Rajnics, Aleksandr Suvorov, Ruben Niesvizky, Andrzej Jakubowiak, Jesus San-Miguel, Heinz Ludwig, Antonio Palumbo, Mihaela Obreja, Sanjay Aggarwal, Philippe Moreau
A primary analysis of the ASPIRE study found that the addition of carfilzomib to lenalidomide and dexamethasone (carfilzomib group) significantly improved progression-free survival (PFS) compared with lenalidomide and dexamethasone alone (control group) in patients with relapsed multiple myeloma (RMM). This post hoc analysis examined outcomes from ASPIRE in patients categorised by age. In the carfilzomib group, 103/396 patients were ≥70 years old, and in the control group, 115/396 patients were ≥70 years old...
May 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28210456/severe-odontogenic-infection-an-emergency-case-report
#18
Marcelo Guzmán-Letelier, Claudia Crisosto-Jara, Camilo Diaz-Ricouz, Miguel Peñarrocha-Diago, David Peñarrocha-Oltra
Odontogenic infections (OI) are a major reason for consultation in dental practice. They affect people of all ages, and most of them respond well to current medical and surgical treatments. However, some OI can spread to vital and deep structures, overcome the host immune system - especially in diabetic, immunocompromised or weakened patients - and even prove fatal. Ludwig's angina is a severe form of diffuse cellulitis that can have an acute onset and spread very rapidly, bilaterally affecting areas of the head and neck, and may prove life threatening...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28198369/giant-heat-transfer-in-the-crossover-regime-between-conduction-and-radiation
#19
Konstantin Kloppstech, Nils Könne, Svend-Age Biehs, Alejandro W Rodriguez, Ludwig Worbes, David Hellmann, Achim Kittel
Heat is transferred by radiation between two well-separated bodies at temperatures of finite difference in vacuum. At large distances the heat transfer can be described by black body radiation, at shorter distances evanescent modes start to contribute, and at separations comparable to inter-atomic spacing the transition to heat conduction should take place. We report on quantitative measurements of the near-field mediated heat flux between a gold coated near-field scanning thermal microscope tip and a planar gold sample at nanometre distances of 0...
February 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28192535/correction-evidence-based-neonatal-unit-practices-and-determinants-of-postnatal-corticosteroid-use-in-preterm-births-below-30-weeks-ga-in-europe-a-population-based-cohort-study
#20
Alexandra Nuytten, Hélène Behal, Alain Duhamel, Pierre-Henri Jarreau, Jan Mazela, David Milligan, Ludwig Gortner, Aurélie Piedvache, Jennifer Zeitlin, Patrick Truffert
[This corrects the article DOI: 10.1371/journal.pone.0170234.].
2017: PloS One
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