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https://www.readbyqxmd.com/read/29457893/kinetics-thermodynamics-and-mechanism-of-a-novel-biphasic-solvent-for-co2-capture-from-flue-gas
#1
Shihan Zhang, Yao Shen, Peijing Shao, Jianmeng Chen, Lidong Wang
The main issue related to the deployment of amine-based absorption process for CO2 capture from flue gas is its intensive energy penalty. Therefore, this study screened a novel biphasic solvent, comprising a primary amine e.g., triethylenetetramine (TETA) and a tertiary amine e.g., N, N-dimethylcyclohexylamine (DMCA), to reduce the energy consumption. The TETA-DMCA blend exhibited high cyclic capacity of CO2 absorption, favorable phase separation behavior, and low regeneration heat. Kinetic analysis showed that the gas- and liquid-side mass transfer resistances were comparable in the lean solution of TETA-DMCA at 40oC, whereas the liquid-side mass transfer resistance became dominant in the rich solution...
February 19, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29457655/importance-of-growth-rate-on-hg-and-pcb-bioaccumulation-in-fish
#2
Jiajia Li, G Douglas Haffner, Gordon Paterson, David M Walters, Michael D Burtnyk, Ken G Drouillard
To evaluate the effect of fish growth on mercury (Hg) and polychlorinated biphenyls (PCBs) bioaccumulation, a non-steady state toxicokinetic model, combined with a Wisconsin bioenergetics model, was developed to simulate Hg and PCB bioaccumulation in Bluegill (Lepomis macrochirus). The model was validated by comparing observed versus predicted Hg and PCB 180 concentrations across 5 age classes from five different waterbodies across North America. The non-steady state model generated accurate predictions for Hg and PCB bioaccumulation in three of five waterbodies: Apsey, Sharbot and Stonelick Lake...
February 19, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29455248/are-there-effects-of-age-gender-height-and-body-fat-on-the-functional-muscle-bone-unit-in-children-and-adults
#3
I Duran, K Martakis, S Hamacher, C Stark, O Semler, E Schoenau
The aim was to describe the effect of age, gender, height, different stages of human life, and body fat on the functional muscle-bone unit. All these factors had a significant effect on the functional muscle-bone unit and should be addressed when assessing functional muscle-bone unit in children and adults. INTRODUCTION: For the clinical evaluation of the functional muscle-bone unit, it was proposed to evaluate the adaptation of the bone to the acting forces. A frequently used parameter for this is the total body less head bone mineral content (TBLH-BMC) determined by dual-energy X-ray absorptiometry (DXA) in relation to the lean body mass (LBM by DXA)...
February 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29455208/rhigf-1-treatment-increases-bone-mineral-density-and-trabecular-bone-structure-in-children-with-papp-a2-deficiency
#4
Federico G Hawkins-Carranza, María T Muñoz-Calvo, Gabriel Á Martos-Moreno, Gonzalo Allo-Miguel, Luis Del Río, Jesús Pozo, Julie A Chowen, Luis A Pérez-Jurado, Jesús Argente
AIM: Our objective was to determine changes in bone mineral density (BMD), trabecular bone score (TBS), and body composition after 2 years of therapy with recombinant human insulin-like growth factor-1 (rhIGF-1) in 2 prepubertal children with a complete lack of circulating PAPP-A2 due to a homozygous mutation in PAPP-A2 (p.D643fs25*) resulting in a premature stop codon. METHODS: Body composition, BMD, and bone structure were determined by dual-energy X-ray absorptiometry at baseline and after 1 and 2 years of rhIGF-1 treatment...
February 16, 2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29455057/the-impact-of-body-composition-pain-and-resilience-on-physical-activity-physical-function-and-physical-performance-at-2-months-post-hip-fracture
#5
Barbara Resnick, J Richard Hebel, Ann L Gruber-Baldini, Gregory E Hicks, Marc C Hochberg, Denise Orwig, Marty Eastlack, Jay Magaziner
The purpose of this study was to test a model of the factors influencing physical activity, physical function and physical performance at 2 months post hip fracture and compare model fit between men and women. Age, cognitive status, comorbidities, pain, resilience, bone mineral density, total body lean mass, total body fat and grip strength were hypothesized to be directly and/or indirectly related to physical activity, physical function and physical performance. This analysis used data from the seventh Baltimore Hip Studies (BHS-7), a prospective cohort study that included 258 community-dwelling participants, 125 (48%) men and 133 (52%) women, hospitalized for treatment of a hip fracture; survey and objective data were obtained at 2 months post hip fracture...
February 15, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29454999/long-term-treatment-with-green-tea-polyphenols-modifies-the-gut-microbiome-of-female-sprague-dawley-rats
#6
Jincheng Wang, Lili Tang, Hongyuan Zhou, Jun Zhou, Travis C Glenn, Chwan-Li Shen, Jia-Sheng Wang
Green tea polyphenols (GTP) have been shown to exert a spectrum of health benefits to animals and humans. It is plausible that the beneficial effects of GTP are a result of its interaction with the gut microbiota. This study evaluated the effect of long-term treatment with GTP on the gut microbiota of experimental rats and the potential linkage between changes of the gut microbiota with the beneficial effects of GTP. Six-month-old Sprague-Dawley rats were randomly allocated into three dosing regimens (0, 0...
January 31, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29454302/aerobic-exercise-inhibits-obesity-induced-respiratory-phenotype
#7
Jefferson Comin Jonco Aquino-Junior, BreAnne MacKenzie, Ana Roberta Almeida-Oliveira, Ana Carolina Martins, Manoel Carneiro Oliveira-Junior, Auriléa Aparecida Britto, Fernanda Magalhaes Arantes-Costa, Nilsa Regina Damaceno-Rodrigues, Elia Garcia Caldini, Ana Paula Ligeiro de Oliveira, Dioze Guadagnini, Luiz Osorio Leiria, Djalma Rabelo Ricardo, Mario Jose Abdalla Saad, Rodolfo Paula Vieira
PURPOSE: Obesity results in decreased lung function and increased inflammation. Moderate aerobic exercise (AE) reduced lung inflammation and remodeling in a variety of respiratory disease models. Therefore, this study investigated whether AE can attenuate a diet-induced obesity respiratory phenotype; including airway hyper-responsiveness (AHR), remodeling and inflammation. METHODS: Sixty C57Bl/6 male mice were distributed into four groups: control lean (CL), exercise lean (EL), obese (O) and obese exercise (OE) groups (2 sets of 7 and 8 mice per group; n = 15)...
February 14, 2018: Cytokine
https://www.readbyqxmd.com/read/29453463/impact-of-gastric-emptying-and-small-intestinal-transit-on-blood-glucose-intestinal-hormones-glucose-absorption-in-the-morbidly-obese
#8
Nam Q Nguyen, Tamara L Debreceni, Jenna E Burgess, Max Bellon, Judith Wishart, Scott Standfield, Charles-Henri Malbert, Michael Horowitz
This study evaluated gastric emptying (GE) and small intestinal (SI) transit in people with morbid obesity and their relationships to glycaemia, incretin hormones, and glucose absorption METHODS: GE and caecal arrival time (CAT) of a mixed meal were assessed in 22 morbidly obese (50.2 ± 2.5 years; 13 F:9 M; BMI: 48.6 ± 1.8 kg/m2 ) and 10 lean (38.6 ± 8.4 years; 5 F:5 M; BMI: 23.9 ± 0.7 kg/m2 ) subjects, using scintigraphy. Blood glucose, plasma 3-O-methylglucose, insulin, glucagon, glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) were measured...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29453396/bone-marrow-lympho-myeloid-malfunction-in-obesity-requires-precursor-cell-autonomous-tlr4
#9
Ailing Liu, Minhui Chen, Rashmi Kumar, Maja Stefanovic-Racic, Robert M O'Doherty, Ying Ding, Willi Jahnen-Dechent, Lisa Borghesi
Obesity, a prevalent condition in adults and children, impairs bone marrow (BM) function. However, the underlying mechanisms are unclear. Here, we show that obese mice exhibit poor emergency immune responses in a toll-like receptor 4 (TLR4)-dependent manner. Canonical myeloid genes (Csf1r, Spi1, Runx1) are enhanced, and lymphoid genes (Flt3, Tcf3, Ebf1) are reduced. Using adoptive transfer and mixed BM chimera approaches we demonstrate that myeloid>lymphoid bias arises after 6 weeks of high-fat diet and depends on precursor cell-autonomous TLR4...
February 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29453154/unique-pharmacology-of-a-novel-allosteric-agonist-sensitizer-insulin-receptor-monoclonal-antibody
#10
Simon A Hinke, Anne M Cieniewicz, Thomas Kirchner, Katharine D'Aquino, Rupesh Nanjunda, Jason Aligo, Robert Perkinson, Philip Cooper, Ken Boayke, Mark L Chiu, Steve Jarantow, Eilyn R Lacy, Yin Liang, Dana L Johnson, Jean M Whaley, Russell B Lingham, Anthony J Kihm
OBJECTIVE: Insulin resistance is a key feature of Type 2 Diabetes (T2D), and improving insulin sensitivity is important for disease management. Allosteric modulation of the insulin receptor (IR) with monoclonal antibodies (mAbs) can enhance insulin sensitivity and restore glycemic control in animal models of T2D. METHODS: A novel human mAb, IRAB-A, was identified by phage screening using competition binding and surface plasmon resonance assays with the IR extracellular domain...
February 3, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29452290/lean-body-weight-is-the-best-scale-for-venous-thromboprophylaxis-algorithm-in-severely-obese-patients-undergoing-bariatric-surgery
#11
Bénédicte Gaborit, Pierre-Antoine Moulin, Thierry Bege, Sandrine Boullu, Clara Vincentelli, Olivier Emungania, Pierre-Emmanuel Morange, Stéphane Berdah, Joe-Elie Salem, Anne Dutour, Corinne Frere
Severely obese patients undergoing bariatric surgery (BS) are at increased risk for venous thromboembolism (VTE). How standard low molecular weight heparin (LMWH) regimen should be adapted to provide both sufficient efficacy and safety in this setting is unclear. We aimed to compare the influence of four body size descriptors (BSD) on peak anti-Xa levels in BS obese patients receiving LMWH fixed doses to identify which one had the greatest impact. One hundred and thirteen BS obese patients [median body mass index (BMI), 43...
February 13, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29451819/protection-from-chronic-stress-and-depressive-symptom-induced-vascular-endothelial-dysfunction-in-female-rats-is-abolished-by-pre-existing-metabolic-disease
#12
Steven D Brooks, Stan Hileman, Paul D Chantler, Samantha Milde, Kent C Lemaster, Stephanie Frisbee, J Kevin Shoemaker, Dwayne N Jackson, Jefferson C Frisbee
While it is known that chronic stress and clinical depression are powerful predictors of poor cardiovascular outcomes, recent clinical evidence has identified correlations between the development of metabolic disease and that for depressive symptoms; creating a combined condition of severely elevated cardiovascular disease risk. In this companion manuscript, we determine the impact of pre-existing metabolic disease on the relationship between chronic stress//depressive symptoms and vascular function, using the obese Zucker (OZR) and the unpredictable chronic mild stress UCMS models...
February 16, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29447352/improvement-of-emergency-department-patient-flow-using-lean-thinking
#13
Miquel Sánchez, Montse Suárez, María Asenjo, Ernest Bragulat
Objective: To apply lean thinking in triage acuity level-3 patients in order to improve emergency department (ED) throughtput and waiting time. Design: A prospective interventional study. Setting: An ED of a tertiary care hospital. Participants: Triage acuity level-3 patients. Intervention(s): To apply lean techniques such as value stream mapping, workplace organization, reduction of wastes and standardization by the frontline staff...
February 13, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29447114/higher-d-lactate-levels-are-associated-with-higher-prevalence-of-small-dense-low-density-lipoprotein-in-obese-adolescents
#14
Reyna Rodríguez-Mortera, Claudia Luevano-Contreras, Sergio Solorio-Meza, Russell Caccavello, Yasmin Bains, Ma Eugenia Garay-Sevilla, Alejandro Gugliucci
BACKGROUND: Childhood obesity is associated with insulin resistance (IR), increased levels of small dense low-density lipoprotein (sd-LDL) as well as with augmented hepatic de novo lipogenesis, which implies increased triose phosphate fluxes that may lead to increased methylglyoxal (MG) and its catabolic end product D-lactate. We hypothesized that obese adolescents have increased D-lactate serum levels associated with high incidence of sd-LDL. METHODS: This is a cross-sectional study where the anthropometric characteristics, atherogenic dyslipidemia complex, sd-LDL (Lipoprint, Quantimetrix) and D-lactate (kinetic enzymatic analysis) were explored in 30 lean vs...
February 15, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29446245/differential-metabolic-effects-of-constant-moderate-versus-high-intensity-interval-training-in-high-fat-fed-mice-possible-role-of-muscle-adiponectin
#15
Sergio F Martinez-Huenchullan, Babu Raja Maharjan, Paul F Williams, Charmaine S Tam, Susan V Mclennan, Stephen M Twigg
Exercise regimens may have differing effects in the presence of obesity. In addition to being fat derived, adiponectin has recently been described as a myokine that regulates insulin sensitivity, which may link to exercise-related metabolic benefits in obesity. Whether skeletal muscle adiponectin varies in different exercise modalities is unclear. This study investigated the comparative effects of 10 weeks of endurance constant-moderate intensity exercise (END) with high intensity interval training (HIIT), on metabolic outcomes, including muscle adiponectin in a mouse model of diet-induced obesity...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29445518/why-do-endocrine-profiles-in-elite-athletes-differ-between-sports
#16
Peter H Sönksen, Richard I G Holt, Walailuck Böhning, Nishan Guha, David A Cowan, Christiaan Bartlett, Dankmar Böhning
Background: Endocrine profiles have been measured on blood samples obtained immediately post-competition from 693 elite athletes from 15 Olympic Sports competing at National or International level; four were subsequently excluded leaving 689 for the current analysis. Methods: Body composition was measured by bioimpedance in a sub-set of 234 (146 men and 88 women) and from these data a regression model was constructed that enabled 'estimated' lean body mass and fat mass to be calculated on all athletes...
2018: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/29444853/interprofessional-teamwork-innovation-model-itim-to-promote-communication-and-patient-centred-coordinated-care
#17
Jing Li, Preetham Talari, Andrew Kelly, Barbara Latham, Sherri Dotson, Kim Manning, Lisa Thornsberry, Colleen Swartz, Mark V Williams
BACKGROUND: Despite recommendations and the need to accelerate redesign of delivery models to be team-based and patient-centred, professional silos and cultural and structural barriers that inhibit working together and communicating effectively still predominate in the hospital setting. Aiming to improve team-based rounding, we developed, implemented and evaluated the Interprofessional Teamwork Innovation Model (ITIM). METHODS: This quality improvement (QI) study was conducted at an academic medical centre...
February 14, 2018: BMJ Quality & Safety
https://www.readbyqxmd.com/read/29444586/sex-differences-in-pericardial-adipose-tissue-assessed-by-pet-ct-and-association-with-cardiometabolic-risk
#18
Corey M Gill, Debora C Azevedo, Adriana L Oliveira, Edgar L Martinez-Salazar, Martin Torriani, Miriam A Bredella
Background Recent studies suggest that pericardial adipose tissue (PAT) is associated with whole body adiposity and insulin resistance. Moreover, the incidence of cardiovascular disease (CVD) differs between men and women. Although CVD is more prevalent in men, women suffering from CVD have a higher mortality compared to men. Differences in PAT may account for some of the observed sex differences in manifestations of CVD. Purpose To assess pericardial adipose tissue (PAT) as a biomarker for cardiometabolic risk and to assess potential sex differences...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29441711/effects-of-residential-summer-camp-on-body-mass-index-and-body-composition-in-type-1-diabetes
#19
Jon D Oden, Brian Franklin, Ernesto Fernandez, Soumya Adhikari, Perrin C White
BACKGROUND: Body mass index (BMI) and fat mass may be higher in children with diabetes compared to healthy peers. It is not certain how diabetic children respond to exercise and diet interventions. OBJECTIVE: To investigate the effect of summer camp on BMI and body composition in children with type 1 diabetes. METHODS: Five hundred eighty-six children (5-19 years, 518 with type 1 diabetes, 68 without diabetes) were followed while attending camp...
February 13, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29441578/cell-type-specific-tracing-of-the-subcortical-input-to-primary-visual-cortex-from-the-basal-forebrain
#20
Georgina A Lean, Yong-Jun Liu, David C Lyon
The basal forebrain provides cholinergic inputs to primary visual cortex (V1) that play a key modulatory role on visual function. While basal forebrain afferents terminate in the infragranular layers of V1, acetylcholine is delivered to more superficial layers through volume transmission. Nevertheless, direct synaptic contact in deep layers 5 and 6 may provide a more immediate effect on V1 modulation. Using helper viruses with cell type specific promoters to target retrograde infection of pseudotyped and genetically modified rabies virus evidence was found for direct synaptic input onto V1 inhibitory neurons...
February 14, 2018: Journal of Comparative Neurology
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