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Intermittant fasting

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https://www.readbyqxmd.com/read/28318450/repeated-sprints-in-fasted-state-impair-reaction-time-performance
#1
Anissa Cherif, Romain Meeusen, Abdulaziz Farooq, Walid Briki, Mohamed Amine Fenneni, Karim Chamari, Bart Roelands
OBJECTIVE: The aim of this study was to assess the effects of 3-day Islamic intermittent fasting (3d-IF) on cognitive performance and serum levels of neurotrophic factors (brain-derived neurotrophic factor [BDNF] and vascular endothelial growth factor [VEGF]) before and after repeated sprints. METHODS: Twenty-one physically active male Muslims (29.8 ± 5.9 years, exercising 4 ± 1.5 times/week) were randomly assigned to one of 2 experimental sessions: the control or nonfasting session (CS) or the fasting session (FS)...
March 20, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28282160/fast-dynamics-of-water-droplets-freezing-from-the-outside-in
#2
Sander Wildeman, Sebastian Sterl, Chao Sun, Detlef Lohse
A drop of water that freezes from the outside in presents an intriguing problem: the expansion of water upon freezing is incompatible with the self-confinement by a rigid ice shell. Using high-speed imaging we show that this conundrum is resolved through an intermittent fracturing of the brittle ice shell and cavitation in the enclosed liquid, culminating in an explosion of the partially frozen droplet. We propose a basic model to elucidate the interplay between a steady buildup of stresses and their fast release...
February 24, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28277344/use-of-hydroxychloroquine-is-associated-with-improved-lipid-profile-in-rheumatoid-arthritis-patients
#3
Jose Felix Restrepo, Inmaculada Del Rincon, Emily Molina, Daniel F Battafarano, Agustin Escalante
BACKGROUND/PURPOSE: We examined the association between hydroxychloroquine (HCQ) and plasma lipid and glucose levels in rheumatoid arthritis (RA) cohort. METHODS: This is a retrospective cohort analysis of 1261 RA patients comparing fasting lipid profiles and plasma glucose between patients who were and were not taking HCQ. We divided patients into 3 groups based on HCQ exposure during follow-up: those who had never taken HCQ, those who took it intermittently, and those who took it continuously...
April 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28263771/meal-pattern-alterations-associated-with-intermittent-fasting-for-weight-loss-are-normalized-after-high-fat-diet-re-feeding
#4
Juliet D Gotthardt, Nicholas T Bello
Alternate day, intermittent fasting (IMF) can be an effective weight loss strategy. However, the effects of IMF on eating behaviors are not well characterized. We investigated the acute and residual effects of IMF for weight loss on meal patterns in adult obese male C57BL/6 mice. After 8weeks of ad libitum high-fat diet to induce diet-induced obesity (DIO), mice were either continued on ad libitum high-fat diet (HFD) or placed on one of 5 diet strategies for weight loss: IMF of high-fat diet (IMF-HFD), pair-fed to IMF-HFD group (PF-HFD), ad libitum low-fat diet (LFD), IMF of low-fat diet (IMF-LFD), or pair-fed to IMF-LFD group (PF-LFD)...
March 3, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28245246/oxygen-uptake-kinetics-and-energy-system-s-contribution-around-maximal-lactate-steady-state-swimming-intensity
#5
Jailton Gregório Pelarigo, Leandro Machado, Ricardo Jorge Fernandes, Camila Coelho Greco, João Paulo Vilas-Boas
The purpose of this study was to examine the oxygen uptake ([Formula: see text]) kinetics and the energy systems' contribution at 97.5, 100 and 102.5% of the maximal lactate steady state (MLSS) swimming intensity. Ten elite female swimmers performed three-to-five 30 min submaximal constant swimming bouts at imposed paces for the determination of the swimming velocity (v) at 100%MLSS based on a 7 x 200 m intermittent incremental protocol until voluntary exhaustion to find the v associated at the individual anaerobic threshold...
2017: PloS One
https://www.readbyqxmd.com/read/28241983/unraveling-the-metabolic-health-benefits-of-fasting-related-to-religious-beliefs-a-narrative-review
#6
REVIEW
Angeliki Persynaki, Spyridon Karras, Claude Pichard
Periodic fasting, under a religious aspect, has been adopted by humans for centuries as a crucial pathway of spiritual purification. Caloric restriction, with or without exclusion of certain types of food, is often a key component. Fasting varies significantly among different populations according to cultural habits and local climate conditions. Religious fasting in terms of patterns (continuous versus intermittent) and duration can vary from 1 to 200 d; thus, the positive and negative impact on health can be considerable...
March 2017: Nutrition
https://www.readbyqxmd.com/read/28238122/amelioration-of-drought-induced-negative-responses-by-elevated-co2-in-field-grown-short-rotation-coppice-mulberry-morus-spp-a-potential-bio-energy-tree-crop
#7
Kalva Madhana Sekhar, Kanubothula Sitarami Reddy, Attipalli Ramachandra Reddy
Present study describes the responses of short rotation coppice (SRC) mulberry, a potential bio-energy tree, grown under interactive environment of elevated CO2 (E) and water stress (WS). Growth in E stimulated photosynthetic performance in well-watered (WW) as well as during WS with significant increases in light-saturated photosynthetic rates (A Sat), water use efficiency (WUEi), intercellular [CO2], and photosystem-II efficiency (F V/F M and ∆F/F M') with concomitant reduction in stomatal conductance (g s) and transpiration (E) compared to ambient CO2 (A) grown plants...
February 25, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28229567/repeated-sprint-training-in-the-fasted-state-during-ramadan-morning-or-evening-training
#8
Asma Aloui, Tarak Driss, Hana Baklouti, Hamdi Jaafar, Omar Hammouda, Karim Chamari, Nizar Souissi
BACKGROUND: The present study assessed the optimal moment-of-day for repeated-sprint training in the fasted state during Ramadan. METHODS: Thirty amateur soccer players were randomly assigned to a morning training group (MTG, training at ~08:00 a.m., n = 10), an evening training group (ETG, training at ~06:00 p.m., n = 10), and a control group (n = 10). Training sessions, conducted on alternate days, consisted of 3 sets of 6 × 40-m shuttle sprints (2 × 20 m with 180° direction changes)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28225086/uvrag-deficiency-exacerbates-doxorubicin-induced-cardiotoxicity
#9
Lin An, Xiao-Wen Hu, Shasha Zhang, Xiaowen Hu, Zongpei Song, Amber Naz, Zhenguo Zi, Jian Wu, Can Li, Yunzeng Zou, Lin He, Hongxin Zhu
Doxorubicin (DOX) is an effective chemotherapeutic drug in the treatment of various types of cancers. However, its clinical application has been largely limited by potential development of cardiotoxicity. Previously we have shown that ultra-violet radiation resistance-associated gene (UVRAG), an autophagy-related protein, is essential for the maintenance of autophagic flux in the heart under physiological conditions. Here, we sought to determine the role of UVRAG-mediated autophagy in DOX-induced cardiotoxicity...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28223145/rapid-induction-of-dopamine-sensitization-in-the-nucleus-accumbens-shell-induced-by-a-single-injection-of-cocaine
#10
Bryan F Singer, Myranda A Bryan, Pavlo Popov, Terry E Robinson, Brandon J Aragona
Repeated intermittent exposure to cocaine results in the neurochemical sensitization of dopamine (DA) transmission within the nucleus accumbens (NAc). Indeed, the excitability of DA neurons in the ventral tegmental area (VTA) is enhanced within hours of initial psychostimulant exposure. However, it is not known if this is accompanied by a comparably rapid change in the ability of cocaine to increase extracellular DA concentrations in the ventral striatum. To address this question we used fast-scan cyclic voltammetry (FSCV) in awake-behaving rats to measure DA responses in the NAc shell following an initial intravenous cocaine injection, and then again 2-h later...
May 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28214525/-is-there-an-optimal-diet-for-weight-management-and-metabolic-health
#11
George Thom, Mike Lean
Individuals can lose body weight and improve health status on a wide range of energy (calorie) restricted dietary interventions. In this paper, we have reviewed the effectiveness of the most commonly utilized diets, including low-fat, low-carbohydrate and Mediterranean approaches in addition to commercial slimming programmes, meal replacements and newly-popularized intermittent fasting diets. We also consider the role of artificial sweeteners in weight management. Low-fat diets tend to improve LDL-cholesterol most, whilst lower-carbohydrate diets may preferentially improve triglycerides and HDL-cholesterol, however differences between diets are marginal...
February 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28204915/-acute-chest-pain-and-new-ecg-changes-in-pacemaker-patients-a%C3%A2-clinical-challenge
#12
Matthias Hoyme, Ralf Surber, P Christian Schulze, Dirk Prochnau
We report the case of a 82-year-old woman who was admitted to our institution with acute chest pain, nausea, and vomiting. Because of atrial fibrillation with intermittent bradycardia, a single-chamber pacemaker was implanted 4 years ago. The initial 12-lead ECG showed atrial fibrillation with a heart rate of 70 bpm, narrow QRS, and T‑wave inversions in the inferolateral leads. Coronary artery disease was excluded by immediate cardiac catheterization. A subsequent ECG three hours later showed a ventricular paced rhythm...
February 15, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28202624/thyroid-hormone-regulation-and-insulin-resistance-insights-from-animals-naturally-adapted-to-fasting
#13
REVIEW
Bridget Martinez, Rudy M Ortiz
The contribution of thyroidal status in insulin signaling and glucose homeostasis has been implicated as a potential pathophysiological factor in humans, but the specific mechanisms remain largely elusive. Fasting induces changes in both thyroid hormone secretion and insulin signaling. Here, we explore how mammals that undergo natural, prolonged bouts of fasting provide unique insight into evolved physiological adaptations that allow them to tolerate such conditions despite intermittent states of reversible insulin resistance...
March 2017: Physiology
https://www.readbyqxmd.com/read/28177396/growth-heterogeneity-in-broiler-breeder-pullets-is-settled-before-the-onset-of-feed-restriction-but-is-not-predicted-by-size-at-hatch
#14
C Lindholm, J Jönsson, A Calais, A Middelkoop, N Yngwe, E Berndtson, J J Lees, E Hult, J Altimiras
Uniform growth is a desirable trait in all large-scale animal production systems because it simplifies animal management and increases profitability. In parental broiler flocks, so-called broiler breeders, low growth uniformity is largely attributed to the feed competition that arises from quantitatively restricted feeding. As feed restriction is crucial to maintaining healthy and fertile breeders, several practices for reducing feed competition and the associated growth heterogeneity have been suggested and range from nutrient dilution by increasing fiber content in feed to intermittent fasting with increased portion size ("skip a day"), but no practice appears to be entirely effective...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28137935/meal-timing-and-frequency-implications-for-cardiovascular-disease-prevention-a-scientific-statement-from-the-american-heart-association
#15
REVIEW
Marie-Pierre St-Onge, Jamy Ard, Monica L Baskin, Stephanie E Chiuve, Heather M Johnson, Penny Kris-Etherton, Krista Varady
Eating patterns are increasingly varied. Typical breakfast, lunch, and dinner meals are difficult to distinguish because skipping meals and snacking have become more prevalent. Such eating styles can have various effects on cardiometabolic health markers, namely obesity, lipid profile, insulin resistance, and blood pressure. In this statement, we review the cardiometabolic health effects of specific eating patterns: skipping breakfast, intermittent fasting, meal frequency (number of daily eating occasions), and timing of eating occasions...
February 28, 2017: Circulation
https://www.readbyqxmd.com/read/28137451/intermittent-intake-of-rapid-cocaine-injections-promotes-robust-psychomotor-sensitization-increased-incentive-motivation-for-the-drug-and-mglu2-3-receptor-dysregulation
#16
Florence Allain, David C S Roberts, Daniel Lévesque, Anne-Noël Samaha
The choice between smoking, injecting or swallowing a drug influences the risk of addiction, as this determines both how much drug gets into the brain and how fast. Most animal studies on addiction focus on how much drug it takes to produce pathological drug use. How fast drugs get to the brain is generally ignored. A few studies have examined the influence of the speed of drug onset, but speed varied along with cumulative intake. Here we held average cumulative intake constant and determined whether variation in the speed of cocaine onset alone predicts outcome...
January 27, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28115234/positive-effects-of-intermittent-fasting-in-ischemic-stroke
#17
David Yang-Wei Fann, Gavin Yong Quan Ng, Luting Poh, Thiruma V Arumugam
Intermittent fasting (IF) is a dietary protocol where energy restriction is induced by alternate periods of ad libitum feeding and fasting. Prophylactic intermittent fasting has been shown to extend lifespan and attenuate the progress and severity of age-related diseases such as cardiovascular (e.g. stroke and myocardial infarction), neurodegenerative (e.g. Alzheimer's disease and Parkinson's disease) and cancerous diseases in animal models. Stroke is the second leading cause of death, and lifestyle risk factors such as obesity and physical inactivity have been associated with elevated risks of stroke in humans...
March 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28109882/is-the-absence-or-intermittent-yf-vaccination-the-major-contributor-to-its-persistent-outbreaks-in-eastern-africa
#18
Marycelin Mandu Baba, Ikusemoran Mayomi
The Europe 2020 strategy and recently ratified Paris agreement are the main documents in the European Union (EU) involving energy and climate policy. Therefore, the aim of this paper is to reveal the possibilities of EU countries to achieve the Europe 2020 strategy and Paris agreement targets. Referring to the regression analysis, the results showed that the growth of economy and primary energy consumption stimulate GHG emissions in EU-28; meanwhile, the increase of RES share decreased them. Moreover, the paper revealed that if the EU will achieve its targets committed in the Europe 2020 strategy, even assuming fast economic growth, the target to reduce GHG emission by 20% by 2020 compared to 1990 will be achieved...
January 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28106818/potential-benefits-and-harms-of-intermittent-energy-restriction-and-intermittent-fasting-amongst-obese-overweight-and-normal-weight-subjects-a-narrative-review-of-human-and-animal-evidence
#19
REVIEW
Michelle Harvie, Anthony Howell
Intermittent energy restriction (IER) has become popular as a means of weight control amongst people who are overweight and obese, and is also undertaken by normal weight people hoping spells of marked energy restriction will optimise their health. This review summarises randomised comparisons of intermittent and isoenergetic continuous energy restriction for weight loss to manage overweight and obesity. It also summarises the potential beneficial or adverse effects of IER on body composition, adipose stores and metabolic effects from human studies, including studies amongst normal weight subjects and relevant animal experimentation...
January 19, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28105538/comparison-of-non-invasive-blood-pressure-monitoring-using-modified-arterial-applanation-tonometry-with-intra-arterial-measurement
#20
Jarkko Harju, Antti Vehkaoja, Pekka Kumpulainen, Stefano Campadello, Ville Lindroos, Arvi Yli-Hankala, Niku Oksala
Intermittent non-invasive blood pressure measurement with tourniquets is slow, can cause nerve and skin damage, and interferes with other measurements. Invasive measurement cannot be safely used in all conditions. Modified arterial tonometry may be an alternative for fast and continuous measurement. Our aim was to compare arterial tonometry sensor (BPro(®)) with invasive blood pressure measurement to clarify whether it could be utilized in the postoperative setting. 28 patients who underwent elective surgery requiring arterial cannulation were analyzed...
January 19, 2017: Journal of Clinical Monitoring and Computing
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