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Protein energy wasting

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https://www.readbyqxmd.com/read/28703894/comparison-of-resting-energy-equations-and-total-energy-expenditure-in-haemodialysis-patients-and-body-composition-measured-by-multi-frequency-bioimpedance
#1
Ben Oliveira, Sivakumar Sridharan, Ken Farrington, Andrew Davenport
BACKGROUND: Waste products of metabolism are retained in haemodialysis (HD) patients. Cellular metabolism generates energy, and patients with greater energy expenditure may therefore require more dialysis. To determine the amount of dialysis required, equations estimating resting and total energy expenditure (REE,TEE) are required. METHODS: We compared estimates of REE in HD patients using established equations with a novel equation recently validated in HD patients (HD equation)...
July 13, 2017: Nephrology
https://www.readbyqxmd.com/read/28699849/protein-energy-wasting-significantly-increases-healthcare-utilization-and-costs-among-patients-with-chronic-kidney-disease-a-propensity-score-matched-cohort-study
#2
Chia-Ter Chao, Chao-Hsiun Tang, Rhoda Wen-Yi Cheng, Michael Yao-Hsien Wang, Kuan-Yu Hung
BACKGROUND: Disease-related malnutrition is highly prevalent and has prognostic implications for patients with chronic kidney disease (CKD); however, few studies have investigated the impact of malnutrition, or protein-energy wasting (PEW), on healthcare utilization and medical expenditure among CKD patients. METHODS: Using claim data from the National Health Insurance in Taiwan, we identified patients with CKD between 2009 and 2013 and categorize into those with mild, moderate, or severe CKD...
July 12, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28689054/implementing-qm-in-docking-calculations-is-it-a-waste-of-computational-time
#3
Adebayo A Adeniyi, Mahmoud E S Soliman
The greatest challenge in molecular docking (MD) is the deficiency of scoring functions (SFs), which limits their reliability. SFs are too simplified to represent the true features of the complex free energy of protein-ligand interactions. Investigations of docking functions have traded accuracy for speed through the use of approximations and simplifications. Consequently, there has been an increase in the popularity of quantum-mechanical (QM)-based methods as reference points for the development of fast, reliable, valuable, yet inexpensive, tools...
July 5, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28676228/room-service-improves-nutritional-intake-and-increases-patient-satisfaction-while-decreasing-food-waste-and-cost
#4
Sally McCray, Kirsty Maunder, Renee Krikowa, Kristen MacKenzie-Shalders
BACKGROUND: Room service is a foodservice model that has been increasingly implemented across health care facilities in an effort to improve patient satisfaction and reduce food waste. In 2013, Mater Private Hospital Brisbane, Australia, was the first hospital in Australia to implement room service, with the aim of improving patient nutrition care and reducing costs. OBJECTIVE: The aim of this study was to comprehensively evaluate the nutritional intake, plate waste, patient satisfaction, and patient meal costs of room service compared to a traditional foodservice model...
July 1, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28661565/a-brief-review-of-intradialytic-hypotension-with-a-focus-on-survival
#5
Jason A Chou, Kamyar Kalantar-Zadeh, Anna T Mathew
Intradialytic hypotension (IDH), a common complication of ultrafiltration during hemodialysis therapy, is associated with high mortality and morbidity. IDH, defined as a nadir systolic blood pressure of less than 90 mm Hg on more than 30% of treatments, is a relevant definition and is correlated with mortality. Risk factors for IDH include patient demographics, anti-hypertensive medication use, larger interdialytic weight gain, and dialysis prescription features as dialysate sodium, high ultrafiltration rate, and dialysate temperature...
June 29, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28659014/optimizing-nutrition-in-pediatric-heart-failure-the-crisis-is-over-and-now-it-s-time-to-feed
#6
Kylie D Lewis, Jennifer Conway, Chentel Cunningham, Bodil M K Larsen
Pediatric heart failure is a complex disease occurring when cardiac output is unable to meet the metabolic demands of the body. With improved surgical interventions and medical therapies, survival rates have improved, and care has shifted from focusing on survival to optimizing quality of life and health outcomes. Based on current literature, this review addresses the nutrition needs of infants and children in heart failure and describes the pathophysiology and metabolic implications of this disease. The prevalence of wasting in pediatric heart failure has been reported to be as high as 86%, highlighting the importance of nutrition assessment through all stages of treatment to provide appropriate intake of energy, protein, and micronutrients...
June 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28658963/chemical-composition-and-physicochemical-properties-of-phaeodactylum-tricornutum-microalgal-residual-biomass
#7
L J German-Báez, M A Valdez-Flores, J V Félix-Medina, C D Norzagaray-Valenzuela, D U Santos-Ballardo, C Reyes-Moreno, L M Shelton, A Valdez-Ortiz
The production of photosynthetic biofuels using microalgae is a promising strategy to combat the use of non-renewable energy sources. The microalgae residual biomass is a waste by-product of biofuel production; however, it could prove to have utility in the development of sustainable nutraceuticals and functional foods. In this study, a comprehensive characterisation of the under-utilised Phaeodactylum tricornutum microalgae residual biomass is presented. Proximal composition, antioxidant capacity (using three different antioxidant assays; oxygen radical absorbance capacity; radical cation activity, ABTS; and radical scavenging activity, DPPH), and total phenolic content of free and bound polyphenols were determined...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28634773/development-and-validation-of-a-fall-risk-assessment-index-for-dialysis-patients
#8
Kenichi Kono, Yusuke Nishida, Hiroki Yabe, Yoshihumi Moriyama, Toshihiko Mori, Ryota Shiraki, Takashi Sato
BACKGROUND: Dialysis patients often have low physical performance due to uremic sarcopenia, protein energy wasting (PEW), and incidence intradialytic hypotension (IDH), which are indicated as risk factors for falling. The objective of this study was to develop a symptom-encompassing evaluation form to predict falls with high sensitivity for dialysis patients. METHODS: A total of 251 patients who had been receiving maintenance hemodialysis therapy three times a week were enrolled in the study...
June 20, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28634051/revisiting-interdialytic-weight-gain-and-mortality-association-with-serum-albumin-interactions-the-japanese-dialysis-outcomes-and-practice-pattern-study
#9
Noriaki Kurita, Yasuaki Hayashino, Shin Yamazaki, Tadao Akizawa, Takashi Akiba, Akira Saito, Shunichi Fukuhara
BACKGROUND: The dialysis practice guideline in Japan sets a limit on the allowed interdialytic weight gain (IDWG) <6%. However, the effects of relative gain of fluid volume to body weight may differ in presence of morbid conditions. Here, we examined whether or not the associations between IDWG and mortality differ by serum albumin (sAlb), a nutritional and illness marker. DESIGN: The study type used was prospective cohort study. SUBJECTS: Patients who participated in the Japan Dialysis Outcomes and Practice Pattern Study (phase 1-4 [1999-2011]) and received thrice-weekly hemodialysis...
June 17, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28633456/feeding-during-dialysis-risks-and-uncertainties
#10
Rajiv Agarwal, Panagiotis Georgianos
Allowing dialysis patients to eat during the treatment is controversial. It is, therefore, no surprise that practices and policies with respect to intradialytic food consumption vary considerably from unit to unit and from country to country. Those who defend the position of feeding during dialysis reason that intradialytic meals offer a supervised and effective therapy for protein-energy wasting. Those who take the opposite view argue that intradialytic food intake should be avoided for the following three reasons...
June 19, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28631898/mass-spectrometry-based-protein-analytics-to-unravel-the-tissue-pathophysiology-in-duchenne-muscular-dystrophy
#11
Stephanie J Carr, René P Zahedi, Hanns Lochmüller, Andreas Roos
Duchenne muscular dystrophy (DMD) is a genetic muscle wasting condition with limited treatment options available and is caused by the lack of Dystrophin. However, pathophysiology of different tissues is variable showing different histological and molecular signatures. Recently, a number of studies have employed gel-free proteomic approaches to unveil the molecular pathophysiology in terms of tissue-specific proteome changes in dystrophin-deficiency. We analysed studies in models of dystrophin-deficiency and patients both from the published literature...
June 20, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28625985/periplasmic-nicotine-dehydrogenase-ndhab-utilizes-pseudoazurin-as-its-physiological-electron-acceptor-in-agrobacterium-tumefaciens-s33
#12
Wenjun Yu, Rongshui Wang, Haiyan Huang, Huijun Xie, Shuning Wang
Agrobacterium tumefaciens S33 can grow with nicotine as the sole source of carbon, nitrogen, and energy via a novel hybrid of the pyridine pathway and the pyrollidine pathway. Characterization of the enzymes involved in the hybrid pathway is important for understanding its biochemical mechanism. Here we report that the molybdenum-containing nicotine dehydrogenase (NdhAB), which catalyzes the initial step of nicotine degradation, is located in the periplasm of strain S33, while the 6-hydroxynicotine oxidase and 6-hydroxypseudooxynicoine oxidase are in the cytoplasm...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28621798/the-relationship-of-serum-adipokines-with-malnutrition-inflammation-score-in-hemodialysis
#13
Elham Alipoor, Ahmad Esmaillzadeh, Mitra Mahdavi-Mazdeh, Mehdi Yaseri, Narges Sadat Zahed, Mohammad Javad Hosseinzadeh-Attar
BACKGROUND: Protein-energy wasting is a prevalent disorder in hemodialysis. Zinc-α2-glycoprotein (ZAG) and adipose triglyceride lipase (ATGL) are novel adipokines with recognized lipolytic effects and proposed role in metabolic homeostasis. This study was conducted to investigate the association of ZAG and ATGL concentrations with malnutrition inflammation score (MIS) and metabolic profile of patients with hemodialysis. MATERIALS AND METHODS: Eighty-eight patients under regular hemodialysis divided based on MIS to normal to mild wasting (NMW; n=35) or moderate wasting (MW; n=53) groups...
June 16, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28611789/association-of-growth-differentiation-factor-15-with-mortality-in-a-prospective-hemodialysis-cohort
#14
Amy S You, Kamyar Kalantar-Zadeh, Lorena Lerner, Tracy Nakata, Nancy Lopez, Lidia Lou, Mary Veliz, Melissa Soohoo, Jennie Jing, Frank Zaldivar, Jeno Gyuris, Danh V Nguyen, Connie M Rhee
BACKGROUND/AIMS: Cardiovascular disease and protein-energy wasting are among the strongest predictors of the high mortality of dialysis patients. In the general population, the novel cardiovascular and wasting biomarker, growth differentiation factor 15 (GDF15), is associated with decreased survival. However, little is known about GDF15 in dialysis patients. METHODS: Among prevalent hemodialysis patients participating in a prospective study (October 2011 to August 2015), we examined the association of baseline GDF15 levels with all-cause mortality using unadjusted and case mix-adjusted death hazard ratios (HRs) that controlled for age, sex, race, ethnicity, diabetes, and dialysis vintage...
February 2017: Cardiorenal Medicine
https://www.readbyqxmd.com/read/28602463/air-displacement-plethysmography-versus-bioelectrical-impedance-to-determine-body-composition-in-pediatric-hemodialysis-patients
#15
Molly Wong Vega, Poyyapakkam R Srivaths
OBJECTIVE: Protein energy wasting is difficult to assess in pediatric hemodialysis (HD) populations because of fluid shifts. Body composition (BC) analysis aids in monitoring nutrition therapy's effects on fat and lean mass. Air displacement plethysmography (ADP) is a "practical" gold standard for fat mass (FM) measurements. We aim to compare BC measures in a pediatric HD population via anthropometry, ADP, and bioelectrical impedance (BIA). DESIGN: The study was prospective cohort study and the setting was 1 pediatric HD unit in Houston, Texas...
June 8, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28600943/investigating-hydrothermal-pretreatment-of-food-waste-for-two-stage-fermentative-hydrogen-and-methane-co-production
#16
Lingkan Ding, Jun Cheng, Dan Qiao, Liangchen Yue, Yu-You Li, Junhu Zhou, Kefa Cen
The growing amount of food waste (FW) in China poses great pressure on the environment. Complex solid organics limit the hydrolysis of FW, hence impairing anaerobic digestion. This study employed hydrothermal pretreatment (HTP) to facilitate the solubilization of FW. When HTP temperature increased from 100 to 200°C, soluble carbohydrate content first increased to a peak at 140°C and then decreased, whereas total carbohydrate content was negatively correlated with increasing temperature due to the enhanced degradation and Maillard reactions...
October 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28600134/comparison-of-subjective-global-assessment-and-protein-energy-wasting-score-to-nutrition-evaluations-conducted-by-registered-dietitian-nutritionists-in-identifying-protein-energy-wasting-risk-in-maintenance-hemodialysis-patients
#17
Simon Siu-Man Sum, Andrea F Marcus, Debra Blair, Laura A Olejnik, Joyce Cao, J Scott Parrott, Emily N Peters, Rosa K Hand, Laura D Byham-Gray
OBJECTIVE: To compare the 7-point subjective global assessment (SGA) and the protein energy wasting (PEW) score with nutrition evaluations conducted by registered dietitian nutritionists in identifying PEW risk in stage 5 chronic kidney disease patients on maintenance hemodialysis. DESIGN AND METHODS: This study is a secondary analysis of a cross-sectional study entitled "Development and Validation of a Predictive energy Equation in Hemodialysis". PEW risk identified by the 7-point SGA and the PEW score was compared against the nutrition evaluations conducted by registered dietitian nutritionists through data examination from the original study (reference standard)...
June 6, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28597311/integrated-process-for-ethanol-biogas-and-edible-filamentous-fungi-based-animal-feed-production-from-dilute-phosphoric-acid-pretreated-wheat-straw
#18
Ramkumar B Nair, Maryam M Kabir, Patrik R Lennartsson, Mohammad J Taherzadeh, Ilona Sárvári Horváth
Integration of wheat straw for a biorefinery-based energy generation process by producing ethanol and biogas together with the production of high-protein fungal biomass (suitable for feed application) was the main focus of the present study. An edible ascomycete fungal strain Neurospora intermedia was used for the ethanol fermentation and subsequent biomass production from dilute phosphoric acid (0.7 to 1.2% w/v) pretreated wheat straw. At optimum pretreatment conditions, an ethanol yield of 84 to 90% of the theoretical maximum, based on glucan content of substrate straw, was observed from fungal fermentation post the enzymatic hydrolysis process...
June 8, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28579671/losses-inefficiencies-and-waste-in-the-global-food-system
#19
Peter Alexander, Calum Brown, Almut Arneth, John Finnigan, Dominic Moran, Mark D A Rounsevell
Losses at every stage in the food system influence the extent to which nutritional requirements of a growing global population can be sustainably met. Inefficiencies and losses in agricultural production and consumer behaviour all play a role. This paper aims to understand better the magnitude of different losses and to provide insights into how these influence overall food system efficiency. We take a systems view from primary production of agricultural biomass through to human food requirements and consumption...
May 2017: Agricultural Systems
https://www.readbyqxmd.com/read/28578858/long-chain-fatty-acids-lcfa-evolution-for-inhibition-forecasting-during-anaerobic-treatment-of-lipid-rich-wastes-case-of-milk-fed-veal-slaughterhouse-waste
#20
R Rodríguez-Méndez, Y Le Bihan, F Béline, P Lessard
A detailed study of a solid slaughterhouse waste (SHW) anaerobic treatment is presented. The waste used in this study is rich in lipids and proteins residue. Long chain fatty acids (LCFA), coming from the hydrolysis of lipids were inhibitory to anaerobic processes at different degrees. Acetogenesis and methanogenesis processes were mainly affected by inhibition whereas disintegration and hydrolysis processes did not seem to be affected by high LCFA concentrations. Nevertheless, because of the high energy content, this kind of waste is very suitable for anaerobic digestion but strict control of operating conditions is required to prevent inhibition...
June 1, 2017: Waste Management
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