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https://www.readbyqxmd.com/read/28728389/influence-of-substituting-steam-flaked-corn-for-dry-rolled-corn-on-feedlot-cattle-growth-performance-when-cattle-are-allowed-either-ad-libitum-or-restricted-access-to-the-finishing-diet
#1
Víctor Manuel González-Vizcarra, Alejandro Plascencia, Daniel Ramos-Aviña, Richard Avery Zinn
Objective: The influence of substituting steam-flaked corn (SFC) for dry rolled corn (DRC) on feedlot cattle growth performance and dietary net energy when cattle are allowed either ad libitum or 2-h restricted access to the finishing diet was evaluated. Methods: Treatment effects were tested using 96 crossbred steers (251 ±2 kg) during the initial 56 d of the finishing phase. Cattle were blocked by weight and randomly assigned within blocks to 16 pens (4 pens/treatment)...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28715993/metabolic-effects-of-intermittent-fasting
#2
Ruth E Patterson, Dorothy D Sears
The objective of this review is to provide an overview of intermittent fasting regimens, summarize the evidence on the health benefits of intermittent fasting, and discuss physiological mechanisms by which intermittent fasting might lead to improved health outcomes. A MEDLINE search was performed using PubMed and the terms "intermittent fasting," "fasting," "time-restricted feeding," and "food timing." Modified fasting regimens appear to promote weight loss and may improve metabolic health. Several lines of evidence also support the hypothesis that eating patterns that reduce or eliminate nighttime eating and prolong nightly fasting intervals may result in sustained improvements in human health...
July 17, 2017: Annual Review of Nutrition
https://www.readbyqxmd.com/read/28715779/mechanisms-underlying-the-acute-toxicity-of-fullerene-to-daphnia-magna-energy-acquisition-restriction-and-oxidative-stress
#3
Xiaohui Lv, Boming Huang, Xiaoshan Zhu, Yuelu Jiang, Baiyang Chen, Yi Tao, Jin Zhou, Zhonghua Cai
The toxicity of fullerene (C60) to Daphnia magna has been a subject with increasing concerns. Nevertheless, the underlying mechanisms are still poorly understood. In the present study, we evaluated various aspects of the toxicological impacts of C60 on daphnia. After a 72-h exposure, the 50% effective concentration of C60 was 14.9 mg/L for immobilization, and 16.3 mg/L for mortality. Daphnia exhibited a quick uptake of C60 with a body burden value of 413 μg/g in wet weight in the 1 mg/L C60 treatment group...
July 14, 2017: Water Research
https://www.readbyqxmd.com/read/28713778/tick-virus-interactions-toll-sensing
#4
Nicholas Johnson
Ticks are important vectors of viruses that infect and cause disease in man, livestock, and companion animals. The major focus of investigation of tick-borne viruses has been the interaction with the mammalian host, particularly the mechanisms underlying disease and the development of vaccines to prevent infection. Only recently has research begun to investigate the interaction of the virus with the tick host. This is striking when considering that the virus spends far more time infecting the tick vector relative to the vertebrate host...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28709906/effects-of-feeding-time-on-daily-rhythms-of-neuropeptide-and-clock-gene-expression-in-the-rat-hypothalamus
#5
Dawei Wang, Anne-Loes Opperhuizen, Jane Reznick, Nigel Turner, Yan Su, Gregory J Cooney, Andries Kalsbeek
Shiftworkers are exposed to several adverse health conditions, one being eating at night. Food consumption at an unnatural time-of-day is thought to be one of the main factors responsible for the increased risk of developing metabolic diseases, such as obesity and diabetes mellitus. The underlying mechanism is considered to include disruption of the circadian organization of physiology, leading to disruption of metabolism. When food is consumed at night, the hypothalamus, a brain region central to homeostasis, receives contradicting input from the central clock and the systemic circulation...
July 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28701319/low-carbohydrate-diet-induces-metabolic-depression-a-possible-mechanism-to-conserve-glycogen
#6
Hugh Stirling Winwood-Smith, Craig E Franklin, Craig R White
Long-term studies have found low carbohydrate diets are more effective for weight loss than calorie restricted diets in the short-term, but equally or only marginally more effective in the long-term. Low carbohydrate diets have been linked to reduced glycogen stores and increased feelings of fatigue. We propose that reduced physical activity in response to lowered glycogen explains the diminishing weight loss advantage of low carbohydrate compared to low calorie diets over longer time scales. We explored this possibility by feeding adult Drosophila melanogaster either a standard or low carbohydrate diet for nine days and measured changes in metabolic rate, glycogen stores, activity, and body mass...
July 12, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28690792/the-most-common-diet-results-in-low-reproduction-in-a-generalist-seabird
#7
Susanne van Donk, Kees C J Camphuysen, Judy Shamoun-Baranes, Jaap van der Meer
Dietary specialization has been described across a wide range of taxa in the animal kingdom. Fitness consequences are, however, not well documented. We examined the reproductive consequences of different dietary specializations in the herring gull Larus argentatus, an omnivorous seabird, using an extensive dataset which includes breeding and dietary data of 10 successive years. We hypothesized that pairs that focused on prey of higher energetic value would yield higher fledging rates. An alternative hypothesis is that pairs that relied on more resources simultaneously would reproduce better...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28683292/mice-under-caloric-restriction-self-impose-a-temporal-restriction-of-food-intake-as-revealed-by-an-automated-feeder-system
#8
Victoria A Acosta-Rodríguez, Marleen H M de Groot, Filipa Rijo-Ferreira, Carla B Green, Joseph S Takahashi
Caloric restriction (CR) extends lifespan in mammals, yet the mechanisms underlying its beneficial effects remain unknown. The manner in which CR has been implemented in longevity experiments is variable, with both timing and frequency of meals constrained by work schedules. It is commonplace to find that nocturnal rodents are fed during the daytime and meals are spaced out, introducing prolonged fasting intervals. Since implementation of feeding paradigms over the lifetime is logistically difficult, automation is critical, but existing systems are expensive and not amenable to scale...
July 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28679529/timing-of-caloric-intake-during-weight-loss-differentially-affects-striatal-dopamine-transporter-and-thalamic-serotonin-transporter-binding
#9
Ruth I Versteeg, Anouk Schrantee, Sofie M Adriaanse, Unga A Unmehopa, Jan Booij, Liesbeth Reneman, Eric Fliers, Susanne E la Fleur, Mireille J Serlie
Recent studies have shown that meal timing throughout the day contributes to maintaining or regaining weight after hypocaloric diets. Although brain serotonin and dopamine are well known to be involved in regulating feeding, it is unknown whether meal timing during energy restriction affects these neurotransmitter systems. We studied the effect of a 4 wk hypocaloric diet with either 50% of daily calories consumed at breakfast (BF group) or at dinner (D group) on hypothalamic and thalamic serotonin transporter (SERT) binding and on striatal dopamine transporter (DAT) binding...
July 5, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28668528/effect-of-stocking-rate-and-animal-genotype-on-dry-matter-intake-milk-production-body-weight-and-body-condition-score-in-spring-calving-grass-fed-dairy-cows
#10
E L Coffey, L Delaby, S Fitzgerald, N Galvin, K M Pierce, B Horan
The objective of the experiment was to quantify the effect of stocking rate (SR) and animal genotype on milk production, dry matter intake (DMI), energy balance, and production efficiency across 2 consecutive grazing seasons (2014 and 2015). A total of 753 records from 177 dairy cows were available for analysis: 68 Holstein-Friesian and 71 Jersey × Holstein-Friesian (JxHF) cows each year of the experiment under a pasture-based seasonal production system. Animals within each breed group were randomly allocated to 1 of 3 whole-farm SR treatments defined in terms of body weight per hectare (kg of body weight/ha): low (1,200 kg of body weight/ha), medium (1,400 kg of body weight/ha), and high (1,600 kg of body weight/ha), and animals remained in the same SR treatments for the duration of the experiment...
June 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28659405/fish-oil-contaminated-with-persistent-organic-pollutants-induces-colonic-aberrant-crypt-foci-formation-and-reduces-antioxidant-enzyme-gene-expression-in-rats
#11
Mee Young Hong, Eunha Hoh, Brian Kang, Rebecca DeHamer, Jin Young Kim, Jan Lumibao
Background: Epidemiologic, clinical, and experimental studies have suggested that fish oil (FO), a rich source of n-3 (ω-3) polyunsaturated fatty acids, protects against colon cancer. However, this message is confounded by the FDA's warning that the consumption of certain types of fish should be restricted because of contamination with persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs) and organochlorine pesticides.Objective: We examined FO contaminated with POPs (PCBs, dichlorodiphenyltrichloroethane, and chlordane) compared with unmodified FO on the risk factors of colon cancer development...
June 28, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28655596/effects-of-macronutrient-distribution-on-weight-and-related-cardiometabolic-profile-in-healthy-non-obese-chinese-a-6-month-randomized-controlled-feeding-trial
#12
Yi Wan, Fenglei Wang, Jihong Yuan, Jie Li, Dandan Jiang, Jingjing Zhang, Tao Huang, Jusheng Zheng, Jim Mann, Duo Li
BACKGROUND: It has been suggested that the increase in carbohydrate at the expense of fat has contributed to the obesity epidemic in North America and some European countries. However, obesity rates in China have increased rapidly in parallel with a transition from the traditional low fat, high carbohydrate diet to a diet relatively high in fat and reduced in carbohydrate. Therefore, the current study aimed to determine whether the traditional Chinese diet was likely to be more effective than a diet with higher fat and lower carbohydrate - which is consumed in most Western societies, at weight control among a non-obese healthy population in China...
June 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28653967/exercise-associated-hyponatremia-in-a-lactating-female
#13
Zach Bailowitz, Raymond Grams, David Teeple, Tamara Hew-Butler
A 37-year-old woman presented to the emergency department with severe headache, which quickly progressed to altered mental status and seizure activity in hospital. Her initial serum sodium concentration ([Na]) was 126 mmol/L. In the 24 hours before admission, she exercised vigorously for 120 minutes (interval training plus yoga) and also consumed more than 4 liters of fluid during that time to both stay hydrated and facilitate milk production because she was actively nursing 2 children. Her serum [Na] and altered mental status corrected slowly over the next 48 hours with furosemide, hypertonic saline, and fluid restriction...
July 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28651478/interval-timing-is-preserved-despite-circadian-desynchrony-in-rats-constant-light-and-heavy-water-studies
#14
Christian C Petersen, Ralph E Mistlberger
The mechanisms that enable mammals to time events that recur at 24-h intervals (circadian timing) and at arbitrary intervals in the seconds-to-minutes range (interval timing) are thought to be distinct at the computational and neurobiological levels. Recent evidence that disruption of circadian rhythmicity by constant light (LL) abolishes interval timing in mice challenges this assumption and suggests a critical role for circadian clocks in short interval timing. We sought to confirm and extend this finding by examining interval timing in rats in which circadian rhythmicity was disrupted by long-term exposure to LL or by chronic intake of 25% D2O...
June 1, 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28644568/treatment-of-avoidant-restrictive-food-intake-disorder-in-a-cohort-of-young-patients-in-a-partial-hospitalization-program-for-eating-disorders
#15
Rollyn M Ornstein, Jamal H Essayli, Terri A Nicely, Emily Masciulli, Susan Lane-Loney
OBJECTIVE: Avoidant/restrictive food intake disorder (ARFID) is a recently named condition to classify patients who present with restricted nutritional intake without body image distortion or fear of weight gain. We sought to compare treatment outcomes of patients with ARFID in a family-centered partial hospital program (PHP) to those with other eating disorders (ED). METHODS: A retrospective chart review of 130 patients 7 to 17 years of age admitted to the program from 2008 to 2012 was performed...
June 23, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28637212/survival-and-feeding-rates-of-four-aphid-species-hemiptera-aphididae-on-various-sucrose-concentrations-in-diets
#16
Gary J Puterka, Scott J Nicholson, W R Cooper
Different concentrations of sucrose were used to investigate how survival and feeding was affected in four species of aphids (Hemiptera: Aphididae). Seven sucrose concentrations were evaluated in feeding chambers fitted with parafilm membranes and infested with nymphs of Aphis glycines Matsumura, Diuraphis noxia Kurdjumov, Myzus persicae Sulzer, or Schizaphis graminum Rondani at 25 °C and a photoperiod of 14:10 (L:D) h. Survival on each diet was recorded 1, 3, 5, 7, 9, and 11 d. Diet volumes (μl) consumed and amounts of honeydew produced were then determined...
June 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28632204/successful-pharmacotherapy-for-the-treatment-of-severe-feeding-aversion-with-mechanistic-insights-from-cross-species-neuronal-remodeling
#17
W G Sharp, A G Allen, K H Stubbs, K K Criado, R Sanders, C E McCracken, R G Parsons, L Scahill, S L Gourley
Pediatric feeding disorders affect up to 5% of children, causing severe food intake problems that can result in serious medical and developmental outcomes. Behavioral intervention (BI) is effective in extinguishing feeding aversions, and also expert-dependent, time/labor-intensive and not well understood at a neurobiological level. Here we first conducted a double-blind, placebo-controlled trial comparing BI with BI plus d-cycloserine (DCS). DCS is a partial N-methyl-d-aspartate (NMDA) receptor agonist shown to augment extinction therapies in multiple anxiety disorders...
June 20, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28601458/ad-libitum-milk-replacer-feeding-but-not-butyrate-supplementation-affects-growth-performance-as-well-as-metabolic-and-endocrine-traits-in-holstein-calves
#18
D Frieten, C Gerbert, C Koch, G Dusel, K Eder, E Kanitz, J M Weitzel, H M Hammon
The enhanced growth performance of calves fed a higher plane of nutrition pre-weaning is well documented, and the effect of butyrate on the development of the gastrointestinal tract in calves has been evaluated. The aim of this study was to examine the synergistic effects of ad libitum milk replacer (MR) feeding and butyrate supplementation on growth performance and energy metabolism in calves. Sixty-four (32 male, 32 female) Holstein calves were examined from birth until wk 11 of life. Calves received MR either ad libitum (Adl) or restrictively (Res) with (AdlB+, ResB+) or without (AdlB-, ResB-) 0...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28594962/effects-of-bilateral-anterior-agranular-insula-lesions-on-food-anticipatory-activity-in-rats
#19
Alex M Gavrila, Suzanne Hood, Barry Robinson, Shimon Amir
Food anticipatory activity (FAA) refers to a daily rhythm of locomotor activity that emerges under conditions of food restriction, whereby animals develop an intense, predictable period of activity in the few hours leading up to a predictable, daily delivery of food. The neural mechanisms by which FAA is regulated are not yet fully understood. Although a number of brain regions appear to be involved in regulating the development and expression of FAA, there is little evidence to date concerning the role of the anterior agranular insular cortex (AICa)...
2017: PloS One
https://www.readbyqxmd.com/read/28582252/teleexercise-for-persons-with-spinal-cord-injury-a-mixed-methods-feasibility-case-series
#20
Byron Lai, James Rimmer, Beth Barstow, Emil Jovanov, C Scott Bickel
BACKGROUND: Spinal cord injury (SCI) results in significant loss of function below the level of injury, often leading to restricted participation in community exercise programs. To overcome commonly experienced barriers to these programs, innovations in technology hold promise for remotely delivering safe and effective bouts of exercise in the home. OBJECTIVE: To test the feasibility of a remotely delivered home exercise program for individuals with SCI as determined by (1) implementation of the intervention in the home; (2) exploration of the potential intervention effects on aerobic fitness, physical activity behavior, and subjective well-being; and (3) acceptability of the program through participant self-report...
July 14, 2016: JMIR Rehabil Assist Technol
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