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Caloric restriction

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https://www.readbyqxmd.com/read/28637315/attenuated-effects-of-bile-acids-on-glucose-metabolism-and-insulin-sensitivity-in-a-male-mouse-model-of-prenatal-undernutrition
#1
Huijuan Ma, Vicencia M Sales, Ashley R Wolf, Sathish Subramanian, Tucker J Matthews, Michael Chen, Aparna Sharma, Walt Gall, Wim Kulik, David E Cohen, Yusuke Adachi, Nicholas W Griffin, Jeffrey I Gordon, Mary-Elizabeth Patti, Elvira Isganaitis
Prenatal undernutrition and low birth weight are associated with risk of type 2 diabetes and obesity. Prenatal caloric restriction results in low birth weight, glucose intolerance, obesity, and reduced plasma bile acids (BA) in offspring mice. Since BAs can regulate systemic metabolism and glucose homeostasis, we hypothesized that BA supplementation could prevent diet-induced obesity and glucose intolerance in this model of developmental programming. Pregnant dams were food restricted by 50% from gestational days 12...
June 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#2
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28626157/protein-restriction-does-not-affect-body-temperature-pattern-in-female-mice
#3
Goro A Kato, Hiroki Shichijo, Toshihiro Takahashi, Akio Shinohara, Tetsuo Morita, Chihiro Koshimoto
Daily torpor is a physiological adaptation in mammals and birds characterized by a controlled reduction of metabolic rate and body temperature during the resting phase of circadian rhythms. In laboratory mice, daily torpor is induced by dietary caloric restriction. However, it is not known which nutrients are related to daily torpor expression. To determine whether dietary protein is a key factor in inducing daily torpor in mice, we fed mice a protein-restricted (PR) diet that included only one-quarter of the amount of protein but the same caloric level as a control (C) diet...
June 13, 2017: Experimental Animals
https://www.readbyqxmd.com/read/28625745/lifelong-dietary-intervention-does-not-affect-hematopoietic-stem-cell-function
#4
Seka Lazare, Albertina Ausema, Aaffien C Reijne, Gertjan van Dijk, Ronald van Os, Gerald de Haan
Hematopoietic stem cells (HSC) undergo a profound functional decline during normal aging. As caloric or dietary restriction has been shown to delay multiple aspects of the aging process in many species, we here decided to explore the consequences of lifelong caloric restriction or, reversely, lifelong excess caloric intake for HSC numbers and function. Although caloric restriction prevented age-dependent increase in bone marrow cellularity, caloric restriction was not able to prevent functional decline of aged long-term hematopoietic stem cell functioning...
June 15, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28622884/the-effect-of-caloric-restriction-on-the-forelimb-skeletal-muscle-fibers-of-the-hypertrophic-myostatin-null-mice
#5
Mohamed I Elashry, Antonios Matsakas, Sabine Wenisch, Stefan Arnhold, Ketan Patel
Skeletal muscle mass loss has a broad impact on body performance and physical activity. Muscle wasting occurs due to genetic mutation as in muscular dystrophy, age-related muscle loss (sarcopenia) as well as in chronic wasting disorders as in cancer cachexia. Food restriction reduces muscle mass underpinned by increased muscle protein break down. However the influence of dietary restriction on the morphometry and phenotype of forelimb muscles in a genetically modified myostatin null mice are not fully characterized...
June 13, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28600159/building-research-in-diet-and-cognition-the-bridge-randomized-controlled-trial
#6
Lisa Tussing-Humphreys, Melissa Lamar, James A Blumenthal, Michael Babyak, Giamila Fantuzzi, Lara Blumstein, Linda Schiffer, Marian L Fitzgibbon
Obesity has been linked to cognitive impairment, cognitive decline and dementia. Given that 38.5% of U.S. adults 60years and older are obese and these numbers are rapidly increasing, strategies to decouple obesity from cognitive decline are needed. Innovative lifestyle strategies that may postpone the onset of subclinical symptoms or even arrest the transition to overt dementia in at-risk individuals are critically needed. Poor diet is central to the development of obesity and diet may affect cognition. Adherence to a Mediterranean Diet (MedDiet) is associated with reduced risk of cognitive impairment and dementia...
June 7, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28599043/ketones-and-human-performance
#7
Jonathan M Scott, Patricia A Deuster
Everyone is seeking nutritional strategies that might benefit performance. One approach receiving much attention is ketones, or ketosis. Ketones are very simple compounds made of hydrogen, carbon, and oxygen, and ketosis is a metabolic state whereby the body uses predominantly ketones. Ketosis can be achieved by fasting for longer than 72 hours or by following a very lowcarbohydrate, high-fat diet (ketogenic diet) for several days to weeks. Alternatively, ketone supplements purportedly induce ketosis rapidly and do not require strict adherence to any specific type of diet; however, much of the touted benefits are anecdotal...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28596381/a-dual-agonist-of-farnesoid-x-receptor-fxr-and-the-g-protein-coupled-receptor-tgr5-int-767-slows-down-age-related-kidney-disease-in-mice
#8
Xiaoxin X Wang, Yuhuan Luo, Dong Wang, Luciano Adorini, Mark Pruzanski, Evgenia Dobrinskikh, Moshe Levi
Even in healthy individuals, renal function gradually declines during aging. However, an observed variation in the rate of this decline has raised the possibility of slowing or delaying age-related kidney disease. One of the most successful interventional measures that slows down and delays age-related kidney disease is caloric restriction. We undertook the present studies to search for potential factors that are regulated by caloric restriction and act as caloric restriction mimetics. Based on our prior studies with the bile acid-activated nuclear hormone receptor farnesoid X receptor (FXR) and G protein coupled membrane receptor TGR5 that demonstrated beneficial effects of FXR and TGR5 activation in the kidney, we reasoned that FXR and TGR5 could be excellent candidates...
June 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28581443/neuropeptide-ff-increases-m2-activation-and-self-renewal-of-adipose-tissue-macrophages
#9
Syed F Hassnain Waqas, Anh Cuong Hoang, Ya-Tin Lin, Grace Ampem, Hind Azegrouz, Lajos Balogh, Julianna Thuróczy, Jin-Chung Chen, Ivan C Gerling, Sorim Nam, Jong-Seok Lim, Juncal Martinez-Ibañez, José T Real, Stephan Paschke, Raphaëlle Quillet, Safia Ayachi, Frédéric Simonin, E Marion Schneider, Jacqueline A Brinkman, Dudley W Lamming, Christine M Seroogy, Tamás Röszer
The quantity and activation state of adipose tissue macrophages (ATMs) impact the development of obesity-induced metabolic diseases. Appetite-controlling hormones play key roles in obesity; however, our understanding of their effects on ATMs is limited. Here, we have shown that human and mouse ATMs express NPFFR2, a receptor for the appetite-reducing neuropeptide FF (NPFF), and that NPFFR2 expression is upregulated by IL-4, an M2-polarizing cytokine. Plasma levels of NPFF decreased in obese patients and high-fat diet-fed mice and increased following caloric restriction...
June 5, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28574509/mycn-amplified-neuroblastoma-requires-the-mrna-translation-regulator-eef2-kinase-to-adapt-to-nutrient-deprivation
#10
Alberto Delaidelli, Gian Luca Negri, Asad Jan, Brandon Jansonius, Amal El-Naggar, Jonathan K M Lim, Debjit Khan, Htoo Zarni Oo, Christopher J Carnie, Marc Remke, John M Maris, Gabriel Leprivier, Poul H Sorensen
MYC family proteins are implicated in many human cancers, but their therapeutic targeting has proven challenging. MYCN amplification in childhood neuroblastoma (NB) is associated with aggressive disease and high mortality. Novel and effective therapeutic strategies are therefore urgently needed for these tumors. MYC-driven oncogenic transformation impairs cell survival under nutrient deprivation (ND), a characteristic stress condition within the tumor microenvironment. We recently identified eukaryotic Elongation Factor 2 Kinase (eEF2K) as a pivotal mediator of the adaptive response of tumor cells to ND...
June 2, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28561039/sedentary-behavior-and-compensatory-mechanisms-in-response-to-different-doses-of-exercise-a-randomized-controlled-trial-in-overweight-and-obese-adults
#11
E A Castro, P B Júdice, A M Silva, P J Teixeira, P J Benito
BACKGROUND/OBJECTIVES: To examine compensatory changes in sedentary behavior (SB) and light-intensity physical activities (LIPA) in response to a 22-week exercise training program in overweight/obese adults; and to determine if different forms of exercise training and physical activity recommendations interact with these compensatory changes. SUBJECTS/METHODS: Eighty-nine overweight and obese individuals (body mass index (BMI): 25-34.9 kg/m(2), 48% males), aged 18-50 years, were randomized into four intervention groups (strength, endurance, combined strength + endurance and physical activity recommendations) with a 25-30% caloric restriction of total daily energy expenditure for 22 weeks...
May 31, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28556428/identification-of-tissue-specific-transcriptional-markers-of-caloric-restriction-in-the-mouse-and-their-use-to-evaluate-caloric-restriction-mimetics
#12
Jamie L Barger, James M Vann, Nicole L Cray, Thomas D Pugh, Angela Mastaloudis, Shelly N Hester, Steven M Wood, Michael A Newton, Richard Weindruch, Tomas A Prolla
Caloric restriction (CR) without malnutrition has been shown to retard several aspects of the aging process and to extend lifespan in different species. There is strong interest in the identification of CR mimetics (CRMs), compounds that mimic the beneficial effects of CR on lifespan and healthspan without restriction of energy intake. Identification of CRMs in mammals is currently inefficient due to the lack of screening tools. We have performed whole-genome transcriptional profiling of CR in seven mouse strains (C3H/HeJ, CBA/J, DBA/2J, B6C3F1/J, 129S1/SvImJ, C57BL/6J, and BALB/cJ) in white adipose tissue (WAT), gastrocnemius muscle, heart, and brain neocortex...
May 26, 2017: Aging Cell
https://www.readbyqxmd.com/read/28552720/remote-tissue-conditioning-an-emerging-approach-for-inducing-body-wide-protection-against-diseases-of-ageing
#13
REVIEW
Boaz Kim, Alice Brandli, John Mitrofanis, Jonathan Stone, Sivaraman Purushothuman, Daniel M Johnstone
We have long accepted that exercise is 'good for us'; that - put more rigorously - moderate exercise is associated with not just aerobic fitness but also reduced morbidity and reduced mortality from cardiovascular disease and even malignancies. Caloric restriction (moderate hunger) and our exposure to dietary phytochemicals are also emerging as stresses which are 'good for us' in the same sense. This review focuses on an important extension of this concept: that stress localized within the body (e.g. in a limb) can induce resilience in tissues throughout the body...
May 24, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28552639/neuroprotective-effects-of-food-restriction-on-autonomic-innervation-of-the-lacrimal-gland-in-the-rat
#14
Hanaa Z Nooh, Ghada H El-Saify, Nermeen M Nour Eldien
Inflammatory mechanisms and oxidative stress play important roles in age-related lacrimal gland (LG) degeneration as well as neural degeneration. Research suggests that caloric restriction can prevent age-related LG dysfunction and increase the life span of neurons. In the present study, we hypothesized that caloric restriction prevents age-related LG dysfunction by ameliorating the influence of inflammatory/oxidative stress on autonomic neurons controlling lacrimal function. We evaluated the effects of food restriction (FR) on inflammatory/oxidative status and on autonomic neural/neuroglial cell populations in LGs from aging rats...
May 24, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28545403/long-lasting-effect-of-obesity-on-skeletal-muscle-transcriptome
#15
Ilhem Messaoudi, Mithila Handu, Maham Rais, Suhas Sureshchandra, Byung S Park, Suzanne S Fei, Hollis Wright, Ashley E White, Ruhee Jain, Judy L Cameron, Kerri M Winters-Stone, Oleg Varlamov
BACKGROUND: Reduced physical activity and increased intake of calorically-dense diets are the main risk factors for obesity, glucose intolerance, and type 2 diabetes. Chronic overnutrition and hyperglycemia can alter gene expression, contributing to long-term obesity complications. While caloric restriction can reduce obesity and glucose intolerance, it is currently unknown whether it can effectively reprogram transcriptome to a pre-obesity level. The present study addressed this question by the preliminary examination of the transcriptional dynamics in skeletal muscle after exposure to overnutrition and following caloric restriction...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28544365/anti-aging-drugs-reduce-hypothalamic-inflammation-in-a-sex-specific-manner
#16
Marianna Sadagurski, Gillian Cady, Richard A Miller
Aging leads to hypothalamic inflammation, but does so more slowly in mice whose lifespan has been extended by mutations that affect GH/IGF-1 signals. Early-life exposure to GH by injection, or to nutrient restriction in the first 3 weeks of life, also modulate both lifespan and the pace of hypothalamic inflammation. Three drugs extend lifespan of UM-HET3 mice in a sex-specific way: acarbose (ACA), 17-α-estradiol (17αE2), and nordihydroguaiaretic acid (NDGA), with more dramatic longevity increases in males in each case...
May 20, 2017: Aging Cell
https://www.readbyqxmd.com/read/28542302/influence-of-catch-up-growth-on-spatial-learning-and-memory-in-a-mouse-model-of-intrauterine-growth-restriction
#17
Cristina Duran Fernandez-Feijoo, Cristina Carrasco Carrasco, Núria Villalmazo Francisco, Judit Cebrià Romero, Jose Ramon Fernández Lorenzo, J C Jiménez-Chillaron, Marta Camprubí Camprubí
BACKGROUND: Intrauterine growth restriction (IUGR) and rapid postnatal weight gain or catch up growth (CUG) increase the susceptibility to metabolic syndrome during adult life. Longitudinal studies have also revealed a high incidence of learning difficulties in children with IUGR. The aim of the present study was to investigate the effect of nutrition and CUG on learning memory in an IUGR animal model. We hypothesized that synaptic protein expression and transcription, an essential mechanism for memory consolidation, might be affected by intrauterine undernutrition...
2017: PloS One
https://www.readbyqxmd.com/read/28537869/a-child-with-kwashiorkor-misdiagnosed-as-atopic-dermatitis
#18
Marcus Henrique de S B Xavier, Eduardo De Magalhães, Gilmar Ferraz Oliveira, Mariana Keltke Magalhães, Cláudio Prates de Almeida E Oliveira, Natália Bragança Oliveira
Although uncommon, kwashiorkor continues to occur in developed, but mainly in developing nations. It is a type of protein-calorie malnutrition that occurs in the setting of insufficient protein intake in the presence of sufficient caloric intake. Skin and hair changes should prompt a thorough dietary history and appropriate dietary intervention. We report a case of a 12-month old girl in Belo Horizonte, Minas Gerais, Brazil, who presented with diffuse edema, desquamation, and irritability misdiagnosed as atopic dermatitis...
May 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28537332/comparison-of-intermittent-fasting-versus-caloric-restriction-in-obese-subjects-a-two-year-follow-up
#19
F B Aksungar, M Sarıkaya, A Coskun, M Serteser, I Unsal
OBJECTIVE: Caloric restriction (CR) is proven to be effective in increasing life span and it is well known that, nutritional habits, sleeping pattern and meal frequency have profound effects on human health. In Ramadan some Muslims fast during the day-light hours for a month, providing us a unique model of intermittent fasting (IF) in humans. In the present study, we have investigated the effects of IF versus CR on the same non-diabetic obese subjects who were followed for two years according to the growth hormone (GH)/Insulin like growth factor (IGF)-1 axis and insulin resistance...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28535183/time-caloric-restriction-inhibits-the-neoplastic-transformation-of-cirrhotic-liver-in-rats-treated-with-diethylnitrosamine
#20
Christian Molina-Aguilar, María de Jesús Guerrero-Carrillo, Jesús Javier Espinosa-Aguirre, Sitlali Olguin-Reyes, Thania Castro-Belio, Olivia Vázquez-Martínez, Julieta Berenice Rivera-Zavala, Mauricio Díaz-Muñoz
Hepatocellular cancer is the most common type of primary liver cancer. Cirrhosis is the main risk factor that generates this malady. It has been proven that caloric restriction protocols and restricted feeding schedules are protective in experimental carcinogenic models. We tested the influence of a time-caloric restriction protocol (2 h of food access during the daytime for 18 weeks) in an experimental model of cirrhosis-hepatocarcinoma produced by weekly administration of diethylnitrosamine. Our results indicate that time-caloric restriction reduced hepatomegaly and prevented the increase in blood leukocytes promoted by diethylnitrosamine...
May 23, 2017: Carcinogenesis
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