keyword
MENU ▼
Read by QxMD icon Read
search

Nutrition physiology

keyword
https://www.readbyqxmd.com/read/28346571/is-the-ergogenicity-of-caffeine-affected-by-increasing-age-the-direct-effect-of-a-physiological-concentration-of-caffeine-on-the-power-output-of-maximally-stimulated-edl-and-diaphragm-muscle-isolated-from-the-mouse
#1
J Tallis, R S James, V M Cox, M J Duncan
INTRODUCTION: Caffeine is a well-established performance enhancing nutritional supplement in a young healthy population, however far less is known about how its ergogenicity is affected by increasing age. A recent review has highlighted the value of studies examining the direct effect of caffeine on isolated skeletal muscle contractility, but the present work is the first to assess the direct effect of 70µM caffeine (physiological maximum) on the maximal power output of isolated mammalian muscle from an age range representing developmental to early ageing...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28346561/reduced-intestinal-motility-mucosal-barrier-function-and-inflammation-in-aged-monkeys
#2
E L Mitchell, A T Davis, K Brass, M Dendinger, R Barner, R Gharaibeh, A A Fodor, K Kavanagh
OBJECTIVE: We aimed to examine the general health and intestinal physiology of young and old non-human primates with comparable life histories and dietary environments. DESIGN: Vervet monkeys (Chlorcebus aethiops sabaeus) in stable and comparable social and nutritional environments were selected for evaluation. Health phenotype, circulating cytokines and biomarkers of microbial translocation (MT) were measured (n=26-44). Subsets of monkeys additionally had their intestinal motility, intestinal permeability, and fecal microbiomes characterized...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28342011/acquiring-nutrients-from-tree-leaves-effects-of-leaf-maturity-and-development-type-on-a-generalist-caterpillar
#3
Raymond V Barbehenn, Madhav Kapila, Sara Kileen, Caleb P Nusbaum
The rapid growth and prolific reproduction of many insect herbivores depend on the efficiencies and rates with which they acquire nutrients from their host plants. However, little is known about how nutrient assimilation efficiencies are affected by leaf maturation or how they vary between plant species. Recent work showed that leaf maturation can greatly decrease the protein assimilation efficiency (PAE) of Lymantria dispar caterpillars on some tree species, but not on species in the willow family (Salicaceae)...
March 24, 2017: Oecologia
https://www.readbyqxmd.com/read/28339732/exploring-the-in-vivo-digestion-of-plant-proteins-in-broiler-chickens
#4
E Recoules, H Sabboh-Jourdan, A Narcy, M Lessire, G Harichaux, V Labas, M J Duclos, S Réhault-Godbert
The use of various protein sources (industry by-products, proteaginous) in poultry diets requires a greater understanding of protein digestion mechanisms. The aim of this study was to characterize the molecular actors required for protein digestion in broilers fed 4 different diets containing soybean meal, rapeseed meal, pea, or corn distiller's dried grain with solubles as the only protein source. The digesta of the digestive tract segments were collected and soluble proteins were analyzed by SDS-PAGE. SDS-PAGE analyses revealed 5 ubiquitous bands in digesta of all digestive tract segments regardless of the diet, whereas 3 bands were diet-specific...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28338970/woody-plant-ecosystems-under-climate-change-and-air-pollution-response-consistencies-across-zonobiomes
#5
R Matyssek, A R Kozovits, G Wieser, J King, H Rennenberg
Forests store the largest terrestrial pools of carbon (C), helping to stabilize the global climate system, yet are threatened by climate change (CC) and associated air pollution (AP, highlighting ozone (O3) and nitrogen oxides (NOx)). We adopt the perspective that CC-AP drivers and physiological impacts are universal, resulting in consistent stress responses of forest ecosystems across zonobiomes. Evidence supporting this viewpoint is presented from the literature on ecosystem gross/net primary productivity and water cycling...
March 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338487/the-evolution-of-disease-chronic-lung-disease-of-infancy-and-pulmonary-hypertension
#6
Michael C Tracy, David N Cornfield
PURPOSE OF REVIEW: Bronchopulmonary dysplasia (BPD) or chronic lung disease of infancy BPD was originally described 50 years ago, in 1967 by Northway et al. This article possesses two fundamental objectives to provide: a brief historical perspective on BPD; and an update relative to current notions of epidemiology, pathophysiology, evaluation, and clinical management of BPD complicated by vascular disease. The review highlights areas of consensus and ongoing uncertainty. RECENT FINDINGS: The clinical cause and presentation of infants with BPD has evolved over the past several decades...
March 23, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28338375/an-updated-review-of-the-applied-physiology-of-american-collegiate-football-the-physical-demands-strength-conditioning-nutritional-considerations-and-injury-characteristics-of-america-s-favourite-game
#7
Hugh H K Fullagar, Robert McCunn, Andrew Murray
Whilst there are various avenues for performance improvement within collegiate American football (AF), there is no comprehensive evaluation of the collective array of resources around performance, physical conditioning and injury and training/game characteristics to guide future research and inform practitioners. Accordingly, the aim of the present review was to provide a current examination of these areas within collegiate AF. Recent studies show that there is a wide range of body compositions and strength characteristics between players, which appear to be influenced by playing position, level of play, training history/programming and time of season...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28337211/nutritional-biophysical-and-physiological-characteristics-of-wild-rocket-genotypes-as-affected-by-soilless-cultivation-system-salinity-level-of-nutrient-solution-and-growing-period
#8
Anna Bonasia, Corrado Lazzizera, Antonio Elia, Giulia Conversa
With the aim of defining the best management of nutrient solution (NS) in a soilless system for obtaining high quality baby-leaf rocket, the present study focuses on two wild rocket genotypes ("Nature" and "Naturelle"), grown in a greenhouse under two Southern Italy growing conditions-autumn-winter (AW) and winter-spring (WS)-using two soilless cultivation systems (SCS)-at two electrical conductivity values (EC) of NS. The SCSs used were the Floating System (FS) and Ebb and Flow System (EFS) and the EC values were 2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28337209/transcriptional-responses-of-chilean-quinoa-chenopodium-quinoa-willd-under-water-deficit-conditions-uncovers-aba-independent-expression-patterns
#9
Andrea Morales, Andres Zurita-Silva, Jonathan Maldonado, Herman Silva
HIGHLIGHTS R49 genotype displayed best performance on selected physiological parameters and highest tolerance to drought.R49 drought over-represented transcripts has exhibited 19% of genes (306 contigs) that presented no homology to published databases.Expression pattern for canonical responses to drought such as ABA biosynthesis and other genes induced in response to drought were assessed by qPCR. Global freshwater shortage is one of the biggest challenges of our time, often associated to misuse, increased consumption demands and the effects of climate change, paralleled with the desertification of vast areas...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28337185/food-like-growth-conditions-support-production-of-active-vitamin-b12-by-propionibacterium-freudenreichii-2067-without-dmbi-the-lower-ligand-base-or-cobalt-supplementation
#10
Paulina Deptula, Bhawani Chamlagain, Minnamari Edelmann, Panchanit Sangsuwan, Tuula A Nyman, Kirsi Savijoki, Vieno Piironen, Pekka Varmanen
Propionibacterium freudenreichii is a traditional dairy bacterium and a producer of short chain fatty acids (propionic and acetic acids) as well as vitamin B12. In food applications, it is a promising organism for in situ fortification with B12 vitamin since it is generally recognized as safe (GRAS) and it is able to synthesize biologically active form of the vitamin. In the present study, vitamin B12 and pseudovitamin biosynthesis by P. freudenreichii was monitored by UHPLC as a function of growth in food-like conditions using a medium mimicking cheese environment, without cobalt or 5,6-dimethylbenzimidazole (DMBI) supplementation...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28336292/structural-elucidation-and-physiologic-functions-of-specialized-pro-resolving-mediators-and-their-receptors
#11
REVIEW
Nan Chiang, Charles N Serhan
The acute inflammatory response is host protective to contain foreign invaders. Many of today's pharmacopeia that block pro-inflammatory chemical mediators can cause serious unwanted side effects such as immune suppression. Uncontrolled inflammation is now considered a pathophysiologic basis associated with, many widely occurring diseases such as cardiovascular disease, neurodegenerative diseases, diabetes, obesity and asthma, as well as the classic inflammatory diseases, e.g. arthritis, periodontal diseases...
March 20, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28335094/growth-and-physiological-responses-of-broiler-chickens-to-diets-containing-raw-full-fat-soybean-meal-and-supplemented-with-a-high-impact-microbial-protease
#12
Mammo Mengesha Erdaw, Shubiao Wu, Paul A Iji, Rider A Perez-Maldonado
Objective: This study was to evaluate the change and function of the pancreas, and small intestine in relation to growth performance of broilers on diets supplemented with raw soybean meal (RSBM) and protease. Samples of test ingredients and diets, after mixing and prior to being used were also assessed on contents of anti-nutritional factors. Methods: A 3 x 3 factorial study was used, with three levels of RSBM (commercial SBM was replaced by RSBM at 0, 10 or 20%) and protease (0...
March 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28333278/quantifying-ribosome-dynamics-in-escherichia-coli-using-fluorescence
#13
Jurek Failmezger, Julian Ludwig, Alexander Nieß, Martin Siemann-Herzberg
Ribosomes are a crucial component of the physiological state of a cell. Therefore, we aimed to monitor ribosome dynamics using a fast and easy fluorescence readout. Using fluorescent-labeled ribosomal proteins, the dynamics of ribosomes during batch cultivation and during nutritional shift conditions were investigated. The fluorescence readout was compared to the cellular rRNA content determined by capillary gel electrophoresis with laser-induced fluorescence detection during exponentially accelerating and decelerating growth...
March 8, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28332111/practical-issues-in-evidence-based-use-of-performance-supplements-supplement-interactions-repeated-use-and-individual-responses
#14
REVIEW
Louise M Burke
Current sports nutrition guidelines recommend that athletes only take supplements following an evidence-based analysis of their value in supporting training outcomes or competition performance in their specific event. While there is sound evidence to support the use of a few performance supplements under specific scenarios (creatine, beta-alanine, bicarbonate, caffeine, nitrate/beetroot juice and, perhaps, phosphate), there is a lack of information around several issues needed to guide the practical use of these products in competitive sport...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28332110/minimizing-injury-and-maximizing-return-to-play-lessons-from-engineered-ligaments
#15
REVIEW
Keith Baar
Musculoskeletal injuries account for more than 70% of time away from sports. One of the reasons for the high number of injuries and long return to play is that we have only a very basic understanding of how our training alters tendon and ligament (sinew) structure and function. Sinews are highly dense tissues that are difficult to characterize both in vivo and in vitro. Recently, engineered ligaments have been developed in vitro using cells from human anterior cruciate ligaments or hamstring tendons. These three-dimensional tissues can be grown in a laboratory, treated with agents thought to affect sinew physiology, and then mechanically tested to determine their function...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28331453/are-pediatricians-diagnosing-obese-children
#16
Katharine Thomas, Fernando Urrego
BACKGROUND: Pediatric obesity is the most prevalent nutritional disorder in American children. The detrimental social, psychological, and physiological effects of obesity call for pediatricians to address this health concern. The literature demonstrates that clinicians are underreporting the diagnosis of obesity in the pediatric setting. The primary purpose of this study was to determine if pediatricians at one pediatrics clinic in the Ochsner Health System are documenting the presence of an overweight or obese body mass index (BMI) as a diagnosis in the medical record...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28330812/molecular-evidence-for-differential-long-term-outcomes-of-early-life-severe-acute-malnutrition
#17
Allan Sheppard, Sherry Ngo, Xiaoling Li, Michael Boyne, Debbie Thompson, Anthony Pleasants, Peter Gluckman, Terrence Forrester
BACKGROUND: Severe acute malnutrition (SAM) in infants may present as one of two distinct syndromic forms: non-edematous (marasmus), with severe wasting and no nutritional edema; or edematous (kwashiorkor) with moderately severe wasting. These differences may be related to developmental changes prior to the exposure to SAM and phenotypic changes appear to persist into adulthood with differences between the two groups. We examined whether the different response to SAM and subsequent trajectories may be explained by developmentally-induced epigenetic differences...
March 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28328262/haemodialysis-nutritional-disorders-and-hypoglycaemia-in-critical-care
#18
Jeiel Carlos Lamonica Crespo, Vanessa Rossato Gomes, Ricardo Luís Barbosa, Katia Grillo Padilha, Silvia Regina Secoli
This study aimed to determine hypoglycemia incidence and associated factors in critically ill patients. It looked at a retrospective cohort with 106 critically ill adult patients with 48 hours of glycaemic control and 72 hours of follow up. The dependent variable, hypoglycaemia (≤70 mg/dl), was assessed with respect to independent variables: age, diet, insulin, catecholamines, haemodialysis, nursing workload and the Simplified Acute Physiology Score. Statistical analysis was performed using Student's t-test, Fisher's exact test and logistic regression at 5% significance level...
March 9, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#19
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28327177/intestinal-t-lymphocyte-homing-is-associated-with-gastric-emptying-and-epithelial-barrier-function-in-critically-ill-a-prospective-observational-study
#20
Christian Greis, Zohal Rasuly, Rolf A Janosi, Lambros Kordelas, Dietrich W Beelen, Tobias Liebregts
BACKGROUND: Impaired gastric emptying is common in critically ill patients. Intestinal dysmotility, a major cause of feed intolerance, may foster infectious complications due to mucosal barrier disruption. However, little is known about gut-directed immune activation, intestinal barrier function and its association with impaired gastric emptying in critically ill patients at ICU admission. METHODS: We conducted a prospective observational study at two tertiary care medical ICUs...
March 22, 2017: Critical Care: the Official Journal of the Critical Care Forum
keyword
keyword
71340
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"