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https://www.readbyqxmd.com/read/28089681/steatorrhea-and-hyperoxaluria-in-severely-obese-patients-before-and-after-roux-en-y-gastric-bypass
#1
Amber M Moreland, Carol A Santa Ana, John R Asplin, Joseph A Kuhn, Ross P Holmes, Jason A Cole, Elizabeth A Odstrcil, Thomas G Van Dinter, Juan G Martinez, John S Fordtran
BACKGROUND: Hyperoxaluria after Roux-en-Y gastric bypass (RYGB) is generally attributed to fat malabsorption. If hyperoxaluria is indeed caused by fat malabsorption, magnitudes of hyperoxaluria and steatorrhea should correlate. Severely obese patients, prior to bypass, ingest excess dietary fat, which can produce hyperphagic steatorrhea. The primary objective of the study was to determine whether urine oxalate excretion correlates with elements of fat balance in severely obese patients before and after RYGB...
January 12, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28089467/the-evolution-of-implant-design-decreases-the-incidence-of-lateral-release-in-primary-total-knee-arthroplasty
#2
Jonathan E Webb, Heidi Y Yang, Jamie E Collins, Elena Losina, Thomas S Thornhill, Jeffrey N Katz
BACKGROUND: Appropriate balancing of the patellofemoral joint (PFJ) using a lateral release can help to prevent patellar instability in total knee arthroplasty (TKA). Contemporary total knee implant designs are characterized by enhanced trochlear geometry more similar to native knee anatomy to minimize instability and reduce utilization of a lateral release. METHODS: We retrospectively reviewed consecutive TKA cases from a single senior surgeon's practice with 3 successive total knee designs: the Press-Fit Condylar (PFC), the Sigma, and the ATTUNE (DePuy, Warsaw, IN)...
December 14, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28089327/ceruloplasmin-gene-expression-profile-changes-in-the-rat-mammary-gland-during-pregnancy-lactation-and-involution
#3
Natalia A Platonova, Iurii A Orlov, Sergey A Klotchenko, Victor S Babich, Ekaterina Y Ilyechova, Polina S Babich, Yuri P Garmai, Andrey V Vasin, Nadezhda V Tsymbalenko, Liudmila V Puchkova
Copper metabolism disturbances in mammary gland (MG) cells have severe consequences in newborns. The mechanism that controls the balance of copper in the MG has not been thoroughly characterized. Four primary copper homeostasis genes in mammals: (1) ceruloplasmin (Cp) encoding multifunction multicopper blue (ferr)oxidase; (2) CTR1 encoding high affinity copper importer 1; and (3 and 4) two similar genes encoding Cu(I)/Cu(II)-ATPases P1 type (ATP7A and ATP7B) responsible for copper efflux from the cells and metallation of cuproenzymes formed in the Golgi complex are expressed in MG...
January 3, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28089184/bone-wax-is-effective-in-reducing-blood-loss-after-total-knee-arthroplasty
#4
Ing H Moo, Jerry Y Q Chen, Eric H Pagkaliwaga, See W Tan, Kein B Poon
BACKGROUND: Total knee arthroplasty (TKA) is associated with major blood loss and blood transfusion is often required. This study aimed to evaluate the efficacy of bone wax in reducing blood loss and transfusion rates after TKA. METHODS: A prospective randomized controlled study that included 100 patients undergoing primary unilateral TKA with cement was conducted in a tertiary center between March 2014 and June 2014. The bone wax group received 2.5 g of bone wax, applied onto the uncovered bone around the prostheses and the nail holes before the tourniquet was released, whereas the control group had hemostasis achieved using electrocautery only...
December 24, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28088987/molecular-mechanisms-underlying-lineage-bias-in-aging-hematopoiesis
#5
REVIEW
Harold K Elias, David Bryder, Christopher Y Park
Although hematopoietic stem cells (HSCs) have traditionally been thought to possess the ability to give rise to all the mature cell types in the hematopoietic system, this conception of hematopoiesis was based on evaluation of hematopoietic output from large numbers of HSCs using transplantation models.  More recent studies evaluating HSCs at the clonal or near-clonal level, both in transplantation studies and during in situ hematopoiesis, have established that individual HSCs can exhibit lineage bias, giving rise to myeloid-biased, lymphoid-biased, or more balanced differentiation, with the proportion of myeloid-biased HSCs increasing with age...
January 2017: Seminars in Hematology
https://www.readbyqxmd.com/read/28088923/an-assessment-of-the-influence-of-macronutrients-on-growth-performance-and-nutrient-utilisation-in-broiler-chickens-by-nutritional-geometry
#6
Sonia Y Liu, Peter H Selle, David Raubenheimer, David J Cadogan, Stephen J Simpson, Aaron J Cowieson
The right-angled triangle mixture experiment was designed to include fourteen diets with different concentrations of starch, protein and lipid. Experimental diets were offered to male Ross 308 broiler chickens from 10 to 23 d after hatching, and response curves and surfaces were generated to illustrate the influence of macronutrients on growth performance and nutrient utilisations. Despite the primary function of macronutrients, especially protein, may not be providing energy, macronutrients were expressed as energy derived from starch, protein and fat for statistical purposes in the mixture design...
January 16, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28079705/prescribed-drinking-leads-to-better-cycling-performance-than-ad-libitum-drinking
#7
Costas N Bardis, Stavros A Kavouras, J D Adams, Nickos D Geladas, Demosthenis B Panagiotakos, Labros S Sidossis
: Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight. PURPOSE: To study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C). METHOD: Ten elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak: 61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat: 10...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28078429/aims-and-tasks-in-parental-caregiving-for-children-receiving-palliative-care-at-home-a-qualitative-study
#8
Lisa M Verberne, Marijke C Kars, Antoinette Y N Schouten-van Meeteren, Diederik K Bosman, Derk A Colenbrander, Martha A Grootenhuis, Johannes J M van Delden
: In paediatric palliative care (PPC), parents are confronted with increasing caregiving demands. More children are cared for at home, and the need for PPC of children is lengthened due to technical and medical improvements. Therefore, a clear understanding of the content of parental caregiving in PPC becomes increasingly important. The objective is to gain insight into parental caregiving based on the lived experience of parents with a child with a life-limiting disease. An interpretative qualitative study using thematic analysis was performed...
January 11, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28077531/sodium-bicarbonate-does-not-prevent-postoperative-acute-kidney-injury-after-off-pump-coronary-revascularization-a-double-blinded-randomized-controlled-trial
#9
S Soh, J W Song, J K Shim, J H Kim, Y L Kwak
BACKGROUND: Acute kidney injury (AKI) is a common morbidity after off-pump coronary revascularization. We investigated whether perioperative administration of sodium bicarbonate, which might reduce renal injury by alleviating oxidative stress in renal tubules, prevents postoperative AKI in off-pump coronary revascularization patients having renal risk factors. METHODS: Patients (n=162) having at least one of the following AKI risk factors were enrolled: (i) age >70 yr; (ii) diabetes mellitus; (iii) chronic renal disease; (iv) congestive heart failure or left ventricular ejection fraction <35%; and (v) reoperation or emergency...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28075570/contrasting-behavior-of-the-z-bonds-in-x-z%C3%A2-%C3%A2-%C3%A2-y-weak-interactions-z-main-group-elements-versus-the-transition-metals
#10
Jyothish Joy, Eluvathingal D Jemmis
In contrast to the increasing family of weak intermolecular interactions in main-group compounds (X-Z···Y, Z = main-group elements), an analysis of the Cambridge Structural Database indicates that electron-saturated (18-electron) transition-metal complexes show reluctance toward weak M bond formation (X-M···Y, M = transition metal). In particular, weak M bonds involving electron-saturated (18-electron) complexes of transition metals with partially filled d-orbitals are not found. We propose that the nature of valence electron density distribution in transition-metal complexes is the primary reason for this reluctance...
January 11, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28074841/the-mito-damp-cardiolipin-blocks-il-10-production-causing-persistent-inflammation-during-bacterial-pneumonia
#11
Krishnendu Chakraborty, Mahesh Raundhal, Bill B Chen, Christina Morse, Yulia Y Tyurina, Anupriya Khare, Timothy B Oriss, Rachael Huff, Janet S Lee, Claudette M St Croix, Simon Watkins, Rama K Mallampalli, Valerian E Kagan, Anuradha Ray, Prabir Ray
Bacterial pneumonia is a significant healthcare burden worldwide. Failure to resolve inflammation after infection precipitates lung injury and an increase in morbidity and mortality. Gram-negative bacteria are common in pneumonia and increased levels of the mito-damage-associated molecular pattern (DAMP) cardiolipin can be detected in the lungs. Here we show that mice infected with Klebsiella pneumoniae develop lung injury with accumulation of cardiolipin. Cardiolipin inhibits resolution of inflammation by suppressing production of anti-inflammatory IL-10 by lung CD11b(+)Ly6G(int)Ly6C(lo)F4/80(+) cells...
January 11, 2017: Nature Communications
https://www.readbyqxmd.com/read/28074058/intracellular-atp-in-balance-of-pro-and-anti-inflammatory-cytokines-in-adipose-tissue-with-and-without-tissue-expansion
#12
J H Lee, Y Zhang, Z Zhao, X Ye, X Zhang, H Wang, J Ye
OBJECTIVES: To understand the mechanism of white fat expansion in the presence of inflammation, we examined the balance of pro- and anti-inflammatory cytokines in epididymal fat during weight gain in DIO mice. METHODS: The pro- and anti-inflammatory cytokines were examined in white fat of diet-induced obese mice and lean mice. The mechanism of gene expression was investigated with a focus on intracellular ATP (iATP). ATP activity was tested in cellular and non-cellular systems in activation of serine kinases (IKKβ, JNK and ERK)...
January 11, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28072458/liana-effects-on-biomass-dynamics-strengthen-during-secondary-forest-succession
#13
Hao Ran Lai, Jefferson S Hall, Benjamin L Turner, Michiel van Breugel
Secondary forests are important carbon sinks, but their biomass dynamics vary markedly within and across landscapes. The biotic and abiotic drivers of this variation are still not well understood. We tested the effects of soil resource availability and competition by lianas on the biomass dynamics of young secondary tropical forests in Panama and assessed the extent to which liana effects were mediated by soil resource availability. Over a five year period, growth, mortality, and recruitment of woody plants of ≥1 cm diameter were monitored in 84 plots in 3-30 y-old secondary forests across the Agua Salud site in central Panama...
January 10, 2017: Ecology
https://www.readbyqxmd.com/read/28072447/randomized-clinical-trial-comparing-standard-diet-with-perioperative-oral-immunonutrition-in-total-gastrectomy-for-gastric-cancer
#14
S Ida, N Hiki, H Cho, K Sakamaki, S Ito, K Fujitani, N Takiguchi, Y Kawashima, K Nishikawa, M Sasako, T Aoyama, M Honda, T Sato, S Nunobe, T Yoshikawa
BACKGROUND: Total gastrectomy for gastric cancer is associated with excessive weight loss and decreased calorie intake. Nutritional support using eicosapentaenoic acid modulates immune function and limits catabolism in patients with advanced cancer, but its impact in the perioperative period is unclear. METHODS: This was a randomized phase III clinical trial of addition of eicosapentaenoic acid-rich nutrition to a standard diet in patients having total gastrectomy for gastric cancer...
January 10, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28071722/spict-a-cyst-cell-specific-gene-regulates-starvation-induced-spermatogonial-cell-death-in-the-drosophila-testis
#15
Ason C-Y Chiang, Heiko Yang, Yukiko M Yamashita
Tissues are maintained in a homeostatic state by balancing the constant loss of old cells with the continued production of new cells. Tissue homeostasis can shift between high and low turnover states to cope with environmental changes such as nutrient availability. Recently, we discovered that the elimination of transit-amplifying cells plays a critical role in maintaining the stem cell population during protein starvation in the Drosophila testis. Here, we identify spict, a gene expressed specifically in differentiating cyst cells, as a regulator of spermatogonial death...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28066917/balancing-exploration-and-exploitation-in-population-based-sampling-improves-fragment-based-de-novo-protein-structure-prediction
#16
David Simoncini, Thomas Schiex, Kam Y J Zhang
Conformational search space exploration remains a major bottleneck for protein structure prediction methods. Population-based meta-heuristics typically enable the possibility to control the search dynamics and to tune the balance between local energy minimization and search space exploration. EdaFold is a fragment-based approach that can guide search by periodically updating the probability distribution over the fragment libraries used during model assembly. We implement the EdaFold algorithm as a Rosetta protocol and provide two different probability update policies: a cluster-based variation (EdaRosec ) and an energy-based one (EdaRoseen ) We analyze the search dynamics of our new Rosetta protocols and show that EdaRosec EdaRosec is able to provide predictions with lower Cα RMSD to the native structure than EdaRoseen and Rosetta AbInitio Relax protocol...
January 9, 2017: Proteins
https://www.readbyqxmd.com/read/28063734/safety-of-intravenous-iron-in-hemodialysis-longer-term-comparisons-of-iron-sucrose-versus-sodium-ferric-gluconate-complex
#17
Wolfgang C Winkelmayer, Benjamin A Goldstein, Aya A Mitani, Victoria Y Ding, Medha Airy, Sreedhar Mandayam, Tara I Chang, M Alan Brookhart, Steven Fishbane
BACKGROUND: Controversy exists about any differences in longer-term safety across different intravenous iron formulations routinely used in hemodialysis (HD) patients. We exploited a natural experiment to compare outcomes of patients initiating HD therapy in facilities that predominantly (in ≥90% of their patients) used iron sucrose versus sodium ferric gluconate complex. STUDY DESIGN: Retrospective cohort study of incident HD patients. SETTING & PARTICIPANTS: Using the US Renal Data System, we hard-matched on geographic region and center characteristics HD facilities predominantly using ferric gluconate with similar ones using iron sucrose...
January 4, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28057790/novel-risk-markers-and-risk-assessments-for-cardiovascular-disease
#18
REVIEW
Mark R Thomas, Gregory Y H Lip
The use of risk markers has transformed cardiovascular medicine, exemplified by the routine assessment of troponin, for both diagnosis and assessment of prognosis in patients with chest pain. Clinical risk factors form the basis for risk assessment of cardiovascular disease and the addition of biochemical, cellular, and imaging parameters offers further refinement. Identifying novel risk factors may allow greater risk stratification and a steady, but gradual progression toward precision medicine. Indeed, the generation of data in this area of research is explosive and when combined with new technologies and techniques provides the potential for more refined, targeted approaches to cardiovascular medicine...
January 6, 2017: Circulation Research
https://www.readbyqxmd.com/read/28057304/drosophila-as-a-model-for-human-diseases-focus-on-innate-immunity-in-barrier-epithelia
#19
P Bergman, S Seyedoleslami Esfahani, Y Engström
Epithelial immunity protects the host from harmful microbial invaders but also controls the beneficial microbiota on epithelial surfaces. When this delicate balance between pathogen and symbiont is disturbed, clinical disease often occurs, such as in inflammatory bowel disease, cystic fibrosis, or atopic dermatitis, which all can be in part linked to impairment of barrier epithelia. Many innate immune receptors, signaling pathways, and effector molecules are evolutionarily conserved between human and Drosophila...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28053230/snx-1-and-rme-8-oppose-the-assembly-of-hgrs-1-escrt-0-degradative-microdomains-on-endosomes
#20
Anne Norris, Prasad Tammineni, Simon Wang, Julianne Gerdes, Alexandra Murr, Kelvin Y Kwan, Qian Cai, Barth D Grant
After endocytosis, transmembrane cargo reaches endosomes, where it encounters complexes dedicated to opposing functions: recycling and degradation. Microdomains containing endosomal sorting complexes required for transport (ESCRT)-0 component Hrs [hepatocyte growth factor-regulated tyrosine kinase substrate (HGRS-1) in Caenorhabditis elegans] mediate cargo degradation, concentrating ubiquitinated cargo and organizing the activities of ESCRT. At the same time, retromer associated sorting nexin one (SNX-1) and its binding partner, J-domain protein RME-8, sort cargo away from degradation, promoting cargo recycling to the Golgi...
January 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
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