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https://www.readbyqxmd.com/read/28447688/influence-of-cosolvents-self-crowding-temperature-and-pressure-on-the-sub-nanosecond-dynamics-and-folding-stability-of-lysozyme
#1
S R Al-Ayoubi, P H Schummel, M Golub, J Peters, R Winter
We studied the effects of temperature and hydrostatic pressure on the dynamical properties and folding stability of highly concentrated lysozyme solutions in the absence and presence of the osmolytes trimethylamine-N-oxide (TMAO) and urea. Elastic incoherent neutron scattering (EINS) was applied to determine the mean-squared displacement (MSD) of the protein's hydrogen atoms to yield insights into the effects of these cosolvents on the averaged sub-nanosecond dynamics in the pressure range from ambient up to 4000 bar...
April 27, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28443785/acute-and-long-term-impact-of-high-protein-diets-on-endocrine-and-metabolic-function-body-composition-and-exercise-induced-adaptations
#2
Flor E Morales, Grant M Tinsley, Paul M Gordon
BACKGROUND: High-protein diets have been shown to improve body composition through alterations in satiety, muscle protein synthesis, and the thermic effect of food. AIM: Given these findings, the purpose of this review is to discuss the integration of the specific hormonal and metabolic effects of high-protein diets following both acute and long-term usage, especially with regard to body composition. METHODS: Full-text articles were obtained through PubMed by using the terms "high-protein diet and body composition," "high-protein diet and exercise," "high-protein diet risk," "high-protein diet side effects," "protein quality PDCAAS," "RDA for protein," and "daily protein recommendation...
April 26, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28441870/protein-nanocellulose-interactions-in-paper-filters-for-advanced-separation-applications
#3
Simon Johan Gustafsson, Levon Manukyan, Albert Mihranyan
Protein-based pharmaceutics are widely explored for healthcare applications, and six out of ten best selling drugs today are biologicals. The goal of this work was to evaluate the protein nanocellulose interactions in paper filter for advanced separation applications such as virus removal filtration and bioprocessing. The protein recovery was measured for bovine serum albumin (BSA), γ-Globulin and Lysozyme using biuret total protein reagent and polyacrylamide gel electrophoresis (SDS-PAGE), and the throughput was characterized in terms of flux values from fixed volume filtrations at various protein concentrations and under worst-case experimental conditions...
April 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28438741/maternal-macronutrient-intake-and-offspring-blood-pressure-20%C3%A2-years-later
#4
Laufey Hrolfsdottir, Thorhallur I Halldorsson, Dorte Rytter, Bodil Hammer Bech, Bryndis E Birgisdottir, Ingibjorg Gunnarsdottir, Charlotta Granström, Tine Brink Henriksen, Sjurdur F Olsen, Ekaterina Maslova
BACKGROUND: Results from 2 cohort studies in Scotland established in the 1940s and 1950s (Aberdeen and Motherwell) suggested that a high protein diet during pregnancy might adversely influence offspring blood pressure at adult age. Our objective was to examine this association in the Danish Fetal Origins Cohort (DaFO88). METHODS AND RESULTS: This was a prospective birth cohort of 965 women who gave birth in 1988-1989 in Aarhus, Denmark, and whose offspring (n=434) participated in a clinical examination ≈20 years later...
April 24, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28437200/effects-of-dietary-macronutrient-composition-on-fndc5-and-irisin-in-mice-skeletal-muscle
#5
Simone Moreira de Macêdo, Deborah de Farias Lelis, Keila Lopes Mendes, Carlos Alberto de Carvalho Fraga, Igor V Brandi, Jonh David Feltenberger, Lucyana Conceição Farias, André Luiz Sena Guimarães, Alfredo Maurício Batista de Paula, Sérgio Henrique de Sousa Santos
BACKGROUND: Fibronectin type III domain containing 5 (FNDC5) and its protein product Irisin are therapeutic targets for obesity-associated disorders. Irisin plays an important role in energy regulation, inducing browning of white adipocytes, and improving obesity. We aimed to investigate the association between muscle Irisin expression and dietary quality. METHODS: Twenty-eight female mice were divided into four groups and fed the following experimental diets for 60 days: standard diet (SD), high-carbohydrate diet (HCD), high-fat diet (HFD), and high-protein diet (HPD)...
May 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28435192/effect-of-peripartum-nutritional-management-on-plasma-profile-of-steroid-hormones-metabolites-and-postpartum-fertility-in-buffaloes
#6
R M Kalasariya, A J Dhami, K K Hadiya, D N Borkhatariya, J A Patel
AIM: The aim of this study was to evaluate the influence of peripartum protein and minerals supplementation on plasma profile of steroid hormones, metabolites, and fertility in rural buffaloes. MATERIAL AND METHODS: A total of 85 advanced pregnant (~8 months) pluriparous buffaloes selected at farmers' doorstep in three tribal villages of Middle Gujarat were randomly divided into two groups, viz., control (n=45) and nutrients treatment (40). The buffaloes of treatment group (n=40), in addition to farmers feeding schedule/control, received daily 1...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28434208/dietary-interventions-for-adults-with-chronic-kidney-disease
#7
REVIEW
Suetonia C Palmer, Jasjot K Maggo, Katrina L Campbell, Jonathan C Craig, David W Johnson, Bernadet Sutanto, Marinella Ruospo, Allison Tong, Giovanni Fm Strippoli
BACKGROUND: Dietary changes are routinely recommended in people with chronic kidney disease (CKD) on the basis of randomised evidence in the general population and non-randomised studies in CKD that suggest certain healthy eating patterns may prevent cardiovascular events and lower mortality. People who have kidney disease have prioritised dietary modifications as an important treatment uncertainty. OBJECTIVES: This review evaluated the benefits and harms of dietary interventions among adults with CKD including people with end-stage kidney disease (ESKD) treated with dialysis or kidney transplantation...
April 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28423522/prss3-is-a-prognostic-marker-in-invasive-ductal-carcinoma-of-the-breast
#8
Li Qian, Xiangxiang Gao, Hua Huang, Shumin Lu, Yin Cai, Yu Hua, Yifei Liu, Jianguo Zhang
OBJECTIVE: Serine protease 3 (PRSS3) is an isoform of trypsinogen, and plays an important role in the development of many malignancies. The objective of this study was to determine PRSS3 mRNA and protein expression levels in invasive ductal carcinoma of the breast and normal surrounding tissue samples. RESULTS: Both PRSS3 mRNA and protein levels were significantly higher in invasive ductal carcinoma of the breast tissues than in normal or benign tissues (all P < 0...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422503/predicting-protein-interactions-of-concentrated-globular-protein-solutions-using-colloidal-models
#9
Mahlet Asfaw Woldeyes, Cesar Calero-Rubio, Eric M Furst, Christopher J Roberts
Protein interactions of α-chymotrypsinogen A (aCgn) were quantified using light scattering from low to high protein concentrations. Static light scattering (SLS) was used to determine the excess Rayleigh ratio (R(ex)) and osmotic second virial coefficients (B22) as a function of pH and total ionic strength (TIS). Repulsive (attractive) protein-protein interactions (PPI) were observed at pH 5 (pH 7), with decreasing repulsions (attractions) upon increasing TIS. Simple colloidal potential-of-mean force models (PMF) that account for short-range non-electrostatic attractions and screened electrostatic interactions were used to fit model parameters from data for B22 vs TIS at both pH values...
April 19, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28421806/diet-and-liver-apoptosis-in-rats-a-particular-metabolic-pathway
#10
Maria Emilia Lopes Monteiro, Analucia Rampazzo Xavier, Vilma Blondet Azeredo
INTRODUCTION: Various studies have indicated an association between modifi cation in dietary macronutrient composition and liver apoptosis. OBJECTIVE: To explain how changes in metabolic pathways associated with a high-protein, high-fat, and low-carbohydrate diet causes liver apoptosis. METHODS: Two groups of rats were compared. An experimental diet group (n = 8) using a high-protein (59.46%), high-fat (31.77%), and low-carbohydrate (8.77%) diet versus a control one (n = 9) with American Institute of Nutrition (AIN)-93-M diet...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28414060/dietary-protein-content-alters-both-male-and-female-contributions-to-drosophila-melanogaster-female-post-mating-response-traits
#11
Janna N Schultzhaus, Ginger E Carney
Males transfer sperm, proteins and other molecules to females during mating. In Drosophila melanogaster, these molecules contribute to the induction of egg maturation, ovulation, oviposition, sperm storage and changes in female receptivity. This suite of physiological and behavioral changes is referred to as the female post-mating response (PMR). Protein is a necessary macronutrient for both male and female reproduction, but imbalances in protein content can decrease reproductive potential. Dietary protein affects the production of proteins in the male ejaculate that are important for induction of the PMR, and female fecundity increases with dietary protein while lifetime mating rate decreases...
April 14, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28412048/comparative-proteome-profiling-of-hydatid-fluid-from-algerian-patients-reveals-cyst-location-related-variation-in-echinococcus-granulosus
#12
Razika Zeghir-Bouteldja, Andy Polomé, Sabrina Bousbata, Chafia Touil-Boukoffa
Human cystic echinococcosis, an endemic zoonosis in Algeria, is caused by larvae of the cestode Echinococcus granulosus. Parasitic modulation of the immune response allows E. granulosus to persist in intermediate hosts. Previous in vitro and in vivo immunological studies have shown differences in host immune responses according to the status and location of the hydatid cysts in the body. In this study, a proteomic analysis of human hydatid fluids was performed to identify the proteins in hydatid cyst fluids...
April 13, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28408059/effect-of-a-high-protein-high-fiber-diet-plus-supplementation-with-branched-chain-amino-acids-on-the-nutritional-status-of-patients-with-cirrhosis
#13
A Ruiz-Margáin, R U Macías-Rodríguez, S L Ríos-Torres, B M Román-Calleja, O Méndez-Guerrero, P Rodríguez-Córdova, A Torre
INTRODUCTION AND OBJECTIVES: The potential benefits of branched-chain amino acids (BCAAs) in cirrhosis extend beyond just the improvement of nutritional status. Their effects include improvement of glucose tolerance, oxidative stress, and inflammatory markers, as has been shown in several studies. A dual nutritional approach of a high-protein, high-fiber diet plus BCAAs in cirrhosis could have additional benefits, compared with BCAAs alone. Such an approach has not been explored and therefore the aim of the present study was to evaluate the effect of a combination of a high-protein, high-fiber diet plus BCAA supplementation over a 6-month period of time on the nutritional status of patients with cirrhosis, as well as its safety and tolerability for those same patients...
April 10, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28394304/the-diet-and-haemodialysis-dyad-three-eras-four-open-questions-and-four-paradoxes-a-narrative-review-towards-a-personalized-patient-centered-approach
#14
REVIEW
Giorgina Barbara Piccoli, Maria Rita Moio, Antioco Fois, Andreea Sofronie, Lurlinys Gendrot, Gianfranca Cabiddu, Claudia D'Alessandro, Adamasco Cupisti
The history of dialysis and diet can be viewed as a series of battles waged against potential threats to patients' lives. In the early years of dialysis, potassium was identified as "the killer", and the lists patients were given of forbidden foods included most plant-derived nourishment. As soon as dialysis became more efficient and survival increased, hyperphosphatemia, was identified as the enemy, generating an even longer list of banned aliments. Conversely, the "third era" finds us combating protein-energy wasting...
April 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28390897/identification-and-characterization-of-two-novel-ptch1-splice-variants
#15
Pei Yu, Jinqing Yang, Yan Zhang
Patched-1 (PTCH1), one of the key molecules involved in the Hedgehog (HH) signaling pathway, acts as the receptor of the HH ligand. PTCH1 also inhibits the positive signal transducer Smoothened (SMO). Several PTCH1 splice variants have been identified and confirmed to play critical roles in HH pathway regulation. In the present study, two novel alternatively spliced variants of PTCH1 transcripts, designated PTCH1-Δ10 and PTCH1-Δ15, were found in humans, mice and zebrafish using RT-PCR, direct sequencing and ribonuclease protection assays...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28388374/summary-points-and-consensus-recommendations-from-the-international-protein-summit
#16
Ryan T Hurt, Stephen A McClave, Robert G Martindale, Juan B Ochoa Gautier, Jorge A Coss-Bu, Roland N Dickerson, Daren K Heyland, L John Hoffer, Frederick A Moore, Claudia R Morris, Douglas Paddon-Jones, Jayshil J Patel, Stuart M Phillips, Saúl J Rugeles, Menaka Sarav Md, Peter J M Weijs, Jan Wernerman, Jill Hamilton-Reeves, Craig J McClain, Beth Taylor
The International Protein Summit in 2016 brought experts in clinical nutrition and protein metabolism together from around the globe to determine the impact of high-dose protein administration on clinical outcomes and address barriers to its delivery in the critically ill patient. It has been suggested that high doses of protein in the range of 1.2-2.5 g/kg/d may be required in the setting of the intensive care unit (ICU) to optimize nutrition therapy and reduce mortality. While incapable of blunting the catabolic response, protein doses in this range may be needed to best stimulate new protein synthesis and preserve muscle mass...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28388369/protein-and-calorie-requirements-associated-with-the-presence-of-obesity
#17
Roland N Dickerson, Jayshil J Patel, Craig J McClain
Obesity compounds the metabolic response to critical illness and increases the risk for overfeeding complications due to its comorbidities. Hypocaloric, high-protein nutrition therapy affords the hospitalized patient with obesity the opportunity to achieve net protein anabolism with a reduced risk of overfeeding complications. The intent of this review is to provide the theoretical framework for development of a hypocaloric high-protein regimen, scientific evidence to support this mode of therapy, and unique considerations for its use in specialized subpopulations...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28388294/a-randomized-double-blind-placebo-controlled-trial-to-determine-the-effectiveness-and-safety-of-a-thermogenic-supplement-in-addition-to-an-energy-restricted-diet-in-apparently-healthy-females
#18
Kristina L Kendall, Parker N Hyde, Ciaran M Fairman, Kaitlyn M Hollaway, Petey W Mumford, Cody T Haun, Brooks Mobley, Wesley C Kephart, Aaron C Tribby, Dylan Kimber, Jordan R Moon, Darren T Beck, Michael D Roberts, Kaelin C Young
The increasing interest in weight loss has seen a concurrent rise in the supplemental use of thermogenics to aid weight loss efforts. To date, the effectiveness and safety of supplemental proprietary blend thermogenics, in conjunction with high-protein energy-restricted diets have not been thoroughly evaluated. The purpose of this study was to investigate the efficacy of a low-calorie, high-protein diet with and without the concomitant use of a thermogenic supplement on body weight and body composition in apparently healthy females...
April 7, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28381192/downregulation-of-sorting-nexin-10-is-associated-with-overexpression-of-mir-30d-during-liver-cancer-progression-in-rats
#19
Nancy Cervantes-Anaya, Alberto Ponciano-Gómez, Guadalupe Soledad López-Álvarez, Christian Gonzalez-Reyes, Sergio Hernández-Garcia, María Asunción Cabañas-Cortes, José Efraín Garrido-Guerrero, Saúl Villa-Treviño
As of 2012, liver cancer was the second leading cause of death worldwide, and hepatocellular carcinoma is the most common primary cancer of the liver. The identification of molecules that might be molecular markers or therapeutic targets is urgently needed to improve clinical management. Based on a microarray analysis performed in our laboratory, we selected six genes-namely, ANXA2, DYNLT1, PFKP, PLA2G7, KRT19, and SNX10-as candidates for validation as tumor markers of liver cancer in a rat model. Their patterns of overexpression in preneoplastic lesions and established tumors at 10 different time points between 24 h and 18 months were analyzed to identify putative tumor markers for further studies...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28381188/elevated-expression-of-protein-arginine-methyltransferase-5-predicts-the-poor-prognosis-of-breast-cancer
#20
Ying Wu, Zhe Wang, Jian Zhang, Rui Ling
Protein arginine methyltransferase 5 is one of the type II protein arginine methyltransferase family members that can symmetrically dimethylate arginine residues on target proteins in both the cytoplasm and the nucleus. Protein arginine methyltransferase 5 was reported to be an oncoprotein that participates in tumor progression through both epigenetic silencing and organelle biogenesis. So far, it has been implicated in various cancers, but its expression pattern in breast cancer has not been elucidated thoroughly...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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