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Protein energy wasting

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https://www.readbyqxmd.com/read/29145050/can-farmers-mitigate-environmental-impacts-through-combined-production-of-food-fuel-and-feed-a-consequential-life-cycle-assessment-of-integrated-mixed-crop-livestock-system-with-a-green-biorefinery
#1
Ranjan Parajuli, Tommy Dalgaard, Morten Birkved
This study evaluates environmental impacts of an integrated mixed crop-livestock system with a green biorefinery (GBR). System integration included production of feed crops and green biomasses (Sys-I) to meet the demand of a livestock system (Sys-III) and to process green biomasses in a GBR system (Sys-II). Processing of grass-clover to produce feed protein was considered in Sys-II, particularly to substitute the imported soybean meal. Waste generated from the livestock and GBR systems were considered for the conversion to biomethane (Sys-IV)...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29136907/ultrasonic-based-membrane-aided-sample-preparation-of-urine-proteomes
#2
Jemmyson Romário Jesus, Hugo M Santos, H López-Fernández, Carlos Lodeiro, Marco Aurélio Zezzi Arruda, J L Capelo
A new ultrafast ultrasonic-based method for shotgun proteomics as well as label-free protein quantification in urine samples is developed. The method first separates the urine proteins using nitrocellulose-based membranes and then proteins are in-membrane digested using trypsin. The enzymatic digestion process is accelerated from overnight to four minutes using a sonoreactor ultrasonic device. Overall, the sample treatment pipeline comprising protein separation, digestion and identification is done in just 3h...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29130711/combined-assessment-of-nutritional-status-in-patients-with-peritoneal-dialysis-using-bioelectrical-impedance-vectors-and-malnutrition-inflammation-score
#3
Elia Muñoz-Pérez, María De Los Ángeles Espinosa-Cuevas, Paola Vanessa Miranda-Alatriste, Ricardo Correa-Rotter, Ximena Atilano-Carsi
BACKGROUND AND OBJECTIVE: Protein energy wasting (PEW) is a common syndrome in patients with chronic kidney disease, related to changes in hydration status, decreased food intake and inflammation. There are several tools for the assessment and diagnosis of such alterations. Bioimpedance vector analysis (BIVA) assess the state of nutrition and hydration, but not the inflammatory component, while the malnutrition inflammation score (MIS) comprises the inflammatory and nutritional factors, but not the state of hydration...
October 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29113907/assessing-the-prevalence-of-protein-energy-wasting-in-haemodialysis-patients-a-cross-sectional-monocentric-study
#4
Rajaa Essadik, Rajaa Msaad, Halima Lebrazi, Hassan Taki, El Hassane Tahri, Anass Kettani, Ghizlane Madkouri, Benyounes Ramdani, Rachid Saïle
INTRODUCTION: Protein-energy wasting (PEW) is a strong predictive factor for morbidity and mortality in haemodialysis (HD) patients. However, there is no consensus for its assessment. The present study aimed to assess the nutritional status of patients on chronic HD by use of different nutritional assessment parameters, and at verifying which can identify the greatest number of HD patients with PEW. Also, to investigate predictors of nutritional status in a haemodialysis center in Morocco...
November 4, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29112863/the-liver
#5
Elijah Trefts, Maureen Gannon, David H Wasserman
The liver is a critical hub for numerous physiological processes. These include macronutrient metabolism, blood volume regulation, immune system support, endocrine control of growth signaling pathways, lipid and cholesterol homeostasis, and the breakdown of xenobiotic compounds, including many current drugs. Processing, partitioning, and metabolism of macronutrients provide the energy needed to drive the aforementioned processes and are therefore among the liver's most critical functions. Moreover, the liver's capacities to store glucose in the form of glycogen, with feeding, and assemble glucose via the gluconeogenic pathway, in response to fasting, are critical...
November 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29112388/electrochemical-ammonia-recovery-from-source-separated-urine-for-microbial-protein-production
#6
Marlies E R Christiaens, Sylvia Gildemyn, Silvio Matassa, Tess Ysebaert, Jo De Vrieze, Korneel Rabaey
Conventional plant and meat protein production have low nitrogen usage efficiencies and high energy needs. Microbial protein (MP) is an alternative that offers higher nitrogen conversion efficiencies with low energy needs if nitrogen is recovered from a concentrated waste source such as source-separated urine. An electrochemical cell (EC) was optimized for ammonia recovery as NH3/H2 gas mixtures usable for MP production. Undiluted hydrolyzed urine was fed to the caustic-generating cathode compartment for ammonia stripping with redirection to the anode compartment for additional ammonium extraction...
November 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29094800/low-protein-diet-for-conservative-management-of-chronic-kidney-disease-a-systematic-review-and-meta-analysis-of-controlled-trials
#7
Connie M Rhee, Seyed-Foad Ahmadi, Csaba P Kovesdy, Kamyar Kalantar-Zadeh
BACKGROUND: Recent data pose the question whether conservative management of chronic kidney disease (CKD) by means of a low-protein diet can be a safe and effective means to avoid or defer transition to dialysis therapy without causing protein-energy wasting or cachexia. We aimed to systematically review and meta-analyse the controlled clinical trials with adequate participants in each trial, providing rigorous contemporary evidence of the impact of a low-protein diet in the management of uraemia and its complications in patients with CKD...
November 2, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29094038/intracorporeal-heat-distribution-from-fully-implantable-energy-sources-for-mechanical-circulatory-support-a-computational-proof-of-concept-study
#8
Jacopo Biasetti, Aliaksei Pustavoitau, Pier Giorgio Spazzini
Mechanical circulatory support devices, such as total artificial hearts and left ventricular assist devices, rely on external energy sources for their continuous operation. Clinically approved power supplies rely on percutaneous cables connecting an external energy source to the implanted device with the associated risk of infections. One alternative, investigated in the 70s and 80s, employs a fully implanted nuclear power source. The heat generated by the nuclear decay can be converted into electricity to power circulatory support devices...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29081604/what-is-hyper-in-the-als-hypermetabolism
#9
REVIEW
Alberto Ferri, Roberto Coccurello
The progressive and fatal loss of upper (brain) and lower (spinal cord) motor neurons and muscle denervation concisely condenses the clinical picture of amyotrophic lateral sclerosis (ALS). Despite the multiple mechanisms believed to underlie the selective loss of motor neurons, ALS aetiology remains elusive and obscure. Likewise, there is also a cluster of alterations in ALS patients in which muscle wasting, body weight loss, eating dysfunction, and abnormal energy dissipation coexist. Defective energy metabolism characterizes the ALS progression, and such paradox of energy balance stands as a challenge for the understanding of ALS pathogenesis...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29075534/nt-probnp-cardiometabolic-risk-factors-and-nutritional-status-in-hemodialysis-patients
#10
Jacques Ducros, Laurent Larifla, Henri Merault, Lydia Foucan
BACKGROUND: We aimed to evaluate the association between NT-proBNP and malnutrition in HD patients while taking into account the four established categories of parameters for diagnosis of protein energy wasting (PEW). METHODS: A cross-sectional study was performed in Afro-Caribbean dialysis patients. One component in each of the 4 categories for the wasting syndrome was retained: serum albumin ≤ 38 g/L, BMI ≤ 23 Kg/m(2), serum creatinine ≤ 818 µmol/L, and normalized protein catabolic rate (nPCR) ≤ 0...
2017: International Journal of Nephrology
https://www.readbyqxmd.com/read/29035727/co-pyrolysis-characteristics-and-kinetic-analysis-of-organic-food-waste-and-plastic
#11
Yijing Tang, Qunxing Huang, Kai Sun, Yong Chi, Jianhua Yan
In this work, typical organic food waste (soybean protein (SP)) and typical chlorine enriched plastic waste (polyvinyl chloride (PVC)) were chosen as principal MSW components and their interaction during co-pyrolysis was investigated. Results indicate that the interaction accelerated the reaction during co-pyrolysis. The activation energies needed were 2-13% lower for the decomposition of mixture compared with linear calculation while the maximum reaction rates were 12-16% higher than calculation. In the fixed-bed experiments, interaction was observed to reduce the yield of tar by 2-69% and promote the yield of char by 13-39% compared with linear calculation...
October 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28964569/protein-blend-ingestion-before-allogeneic-stem-cell-transplantation-improves-protein-energy-malnutrition-in-patients-with-leukemia
#12
Guangxu Ren, Jianping Zhang, Minghua Li, Suqin Yi, Jin Xie, Hongru Zhang, Jing Wang
Severe protein-energy malnutrition (PEM) and skeletal muscle wasting are commonly observed in patients with acute leukemia. Recently, the ingestion of a soy-whey protein blend has been shown to promote muscle protein synthesis (MPS). Thus, we tested the hypothesis that the ingestion of a soy-whey blended protein (BP) may improve the PEM status and muscle mass in acute leukemia patients. In total, 24 patients from the same treatment group were randomly assigned to the natural diet plus soy-whey blended protein (BP) group and the natural diet only (ND) group...
August 25, 2017: Nutrition Research
https://www.readbyqxmd.com/read/28959629/toxicity-assessment-of-cadmium-chloride-on-planktonic-copepods-centropages-ponticus-using-biochemical-markers
#13
Cherif Ensibi, Mohamed Nejib Daly Yahia
Pollution of the aquatic environment by heavy metals has become a worldwide problem. Most heavy metals exhibit toxic waste on aquatic organisms. Cadmium (Cd) is a highly toxic metal which affects aquatic organisms acutely and chronically. Planktonic calanoid copepods are the secondary dominant producers of pelagic ecosystems and play a considerable role in the transfer of energy and organic matter from primary producers to higher trophic levels. We investigated the effect of cadmium chloride on biochemical responses of the planktonic calanoid copepods Centropages ponticus which is a key species in the Mediterranean Sea...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28954986/body-fat-mass-is-correlated-with-serum-transthyretin-levels-in-maintenance-hemodialysis-patients
#14
Sayaka Matsuura, Yumiko Shirai, Miyu Kubo, Chisako Nayama, Masami Okitsu, Yuu Oiwa, Sonoko Yasui, Yoshiko Suzuki, Tomohiro Murata, Eiji Ishikawa, Chikao Miki, Yasuhiro Hamada
Serum transthyretin (TTR), also known as prealbumin, is a reliable nutritional indicator and an independent prognostic factor for maintenance hemodialysis patients. However, we recently reported that serum TTR levels did not affect protein-energy wasting (PEW). In this study, we investigated factors affecting serum TTR levels in 60 maintenance hemodialysis patients. The patients were divided into High-TTR and Low-TTR groups according to the median serum TTR level. Albumin levels were significantly higher and C-reactive protein (CRP) levels were significantly lower in the High-TTR group than in the Low-TTR group...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28946205/metaproteomic-analysis-of-the-relationship-between-microbial-community-phylogeny-function-and-metabolic-activity-during-biohydrogen-methane-coproduction-under-short-term-hydrothermal-pretreatment-from-food-waste
#15
Xuan Jia, Beidou Xi, Mingxiao Li, Dongming Liu, Jiaqi Hou, Yan Hao, Fanhua Meng
Short-term hydrothermal pretreatment (SHP) is an attractive method for food waste anaerobic digestion, which facilitates the solubilisation of recalcitrant particles. This study employed metaproteomic method to evaluate the relationships among microbial community phylogeny, function, and metabolic activity during two-stage anaerobic digestion under SHP (SHPT) from food waste. The presence of 651 bacterial proteins and 477 archaeal protein has been detected by liquid chromatography online linked to mass spectrometry, revealing a high metabolic heterogeneity during SHPT...
December 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28924269/effect-of-dietary-counselling-on-the-nutritional-status-of-end-stage-renal-disease-patients
#16
Bibi Hajira, Maryam Manzoor, Muhammad Samiullah, Rattan Kaur Chawla
OBJECTIVE: To investigate the effect of dietary counselling on the nutritional status of end-stage renal disease patients undergoing maintenance haemodialysis. METHODS: This study was conducted at the Institute of Kidney Diseases, Peshawar, Pakistan, from November to December 2015, and comprised patients of either gender with protein energy wasting. The nutritional status assessment was based on four categories, including biochemical indicators (haemoglobin, serum albumin and cholesterol), measure of body mass index, reduced body fatness, decreased muscle mass and low protein or energy intake...
September 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28910791/inflammation-and-protein-energy-wasting-in-the-uremic-milieu
#17
Magdalena Jankowska, Gabriela Cobo, Bengt Lindholm, Peter Stenvinkel
Inflammation is normally a protective and physiological response to harmful stimuli, but typically becomes an uncontrolled, maladaptive, and persistent process in patients with end-stage renal disease (ESRD). Through a deleterious cascade of poorly controlled reactions mediated by biologically active molecules (also called middle molecular weight uremia retention solutes), inflammation associates with a range of complications including cardiovascular disease and protein-energy wasting (PEW). Persistent inflammation, which is central to the conceptual etiological models of PEW and the malnutrition, inflammation, and atherosclerosis syndrome, induces and reignites processes leading to PEW in a number of ways including stimulation of both direct and indirect mechanisms of muscle proteolysis...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28910789/end-stage-renal-disease-inflammation-and-cardiovascular-outcomes
#18
Lu Dai, Edyta Golembiewska, Bengt Lindholm, Peter Stenvinkel
Despite marked improvements in renal replacement therapy during the last 30 years, the age-adjusted mortality rate in end-stage renal disease (ESRD) patients is still unacceptably high and comparable to that of many malignancies. Cardiovascular disease (CVD) remains the major cause of morbidity and mortality in ESRD patients. However, traditional risk factors can only partially explain the high premature cardiovascular burden in this population. Nontraditional risk factors, including persistent low-grade inflammation, are critical in the pathogenesis of atherosclerosis, vascular calcification, and other causes of CVD and may also contribute to protein-energy wasting and other complications in chronic kidney disease (CKD) patients...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28892628/no-photon-wasted-an-efficient-and-selective-singlet-oxygen-photosensitizing-protein
#19
Michael Westberg, Mikkel Bregnhøj, Michael Etzerodt, Peter R Ogilby
Optogenetics has been, and will continue to be, a boon to mechanistic studies of cellular processes. Genetically encodable proteins that sensitize the production of reactive oxygen species (ROS) are expected to play an increasingly important role, particularly in elucidating mechanisms of temporally and spatially dependent cell signaling. However, a substantial challenge in developing such photosensitizing proteins has been to funnel the optical excitation energy into the initial selective production of only one ROS...
September 27, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28885630/from-direct-to-indirect-lithium-targets-a-comprehensive-review-of-omics-data
#20
REVIEW
Magali Roux, Anthony Dosseto
Metal ions are critical to a wide range of biological processes. Among them, lithium (Li) has been recognised for its benefit as a treatment for bipolar disorder (BD). However, we are yet to grasp the extent of its role in biological processes, despite its molecular targets having been extensively studied. Here we review a wide range of transcriptomic, proteomic and metabolomic studies in order to obtain a full picture of Li effects at various levels. Multifarious patterns of Li-regulated genes, proteins and metabolites are identified...
October 18, 2017: Metallomics: Integrated Biometal Science
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