scholarly journals Maternal Choline Intake Programs Hypothalamic Energy Regulatory Pathways and Long-Term Phenotype in Male Wistar Rat Offspring (OR35-04-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Rola Hammoud ◽  
Emanuela Pannia ◽  
Chih-Sheng Liao ◽  
Diptendu Chatterjee ◽  
Mandy Ho ◽  
...  
Keyword(s):  
Weight Gain ◽  
Food Intake ◽  
Energy Expenditure ◽  
Wistar Rat ◽  
In Utero ◽  
Receptor Expression ◽  
Rat Offspring ◽  
Choline Intake ◽  
Energy Regulatory

Abstract Objectives The prenatal period is a critical time of brain development. Maternal choline intake is associated with improvement in memory and cognitive function in the offspring. However, the role of choline in the regulation of physiological functions controlled by the hypothalamus has not been reported. The objective of this study is to elucidate the effects of choline intake on the in utero programming of hypothalamic energy regulatory neurons in male Wistar rat offspring. Methods Pregnant Wistar rats received an AIN-93G diet containing recommended choline (RC, 1 g/kg diet), low choline (LC, 0.5-fold), or high choline (HC, 2.5-fold). At birth, brain and blood was collected from male pups. Male pups from each dietary treatment were maintained on the control diet for 17-weeks. Dependent measures include post-weaning food intake, energy expenditure, weight-gain, plasma glucoregulatory hormones, brain choline and 1-carbon metabolite levels, and expression of hypothalamic energy regulatory neurons. Results At birth, pup brain concentrations of choline proportionally reflected the choline content in the maternal diets. HC pups had higher hypothalamic protein expression of the orexigenic neuropeptide-Y neuron than both groups (P < 0.05), but lower activation than LC pups (P < 0.05). Both HC and LC pups had lower plasma leptin concentrations than RC pups (P < 0.01), but LC pups had lower hypothalamic leptin receptor expression compared to both groups at birth (P < 0.05). During adulthood, offspring of HC dams had higher weekly food intake compared to RC (11%, P < 0.01), and higher weight-gain than both RC and LC groups (12%, P < 0.05). LC offspring had lower 24hr energy expenditure and locomotor activity than HC and RC groups (6%, P < 0.05). Conclusions Choline content of diets consumed by rats during pregnancy impacts in utero development of hypothalamic energy regulatory systems; long-term body weight-gain, food intake and energy expenditure in mature rat offspring. Funding Sources This research was supported by the Canadian Institute of Health Research, Institute of Nutrition, Metabolism and Diabetes (CIHR-INMD).

scholarly journals Choline and Folic Acid Balance in Diets During Pregnancy Programs Food Intake Regulation in Wistar Rat Offspring (FS08-05-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Rola Hammoud ◽  
Chih-Sheng Liao ◽  
Emanuela Pannia ◽  
Mandy Ho ◽  
Neil Yang ◽  
...  
Keyword(s):  
Body Weight ◽  
Folic Acid ◽  
Weight Gain ◽  
Food Intake ◽  
Body Weight Gain ◽  
Control Diet ◽  
Wistar Rat ◽  
Rat Offspring ◽  
Food Intake Regulation ◽  
Intake Regulation

Abstract Objectives High gestational folic acid (FA) induces an obesogenic phenotype in male Wistar rat offspring. Imbalances between FA and other methyl-nutrients (i.e., choline) leading to perturbations in the 1-carbon cycle may account for the effects of high FA diets. Canadian women consume high (2–7-fold) intakes of FA, but most are not meeting recommended adequate intakes for choline. Choline is also absent from Canadian prenatal supplements. The objective of this study is to evaluate the effects of the interaction between choline and FA in maternal diets of rats on the 1-carbon cycle, and the programming of food intake, body weight gain and biomarkers of obesity in the offspring later in life. Methods Pregnant Wistar rat dams were fed the AIN-93 G diet with recommended (1X) choline and FA (RCRF, control), or a 5X FA diet with either 0.5X choline (LCHF), 1X choline (RCHF), or 2.5X choline (HCHF). Brain and blood were collected at birth. At weaning one male pup/dam from all groups was maintained on the control diet for 20 weeks then terminated. Dependent measures include weekly body weight-gain and food intake, plasma glucoregulatory hormones and 1-carbon metabolites at birth and post-weaning. Results Increasing choline content to 2.5-fold in a high (5-fold) gestational FA diet (HCHF) led to lower plasma insulin and leptin levels at birth compared to the LCHF and RCHF diets, respectively (P < 0.05). It also led to lower (25%, P = 0.03) plasma 5-methyltetrahydrofolate concentrations at birth compared to the RCHF diet, suggesting more efficient utilization of FA. Offspring born to dams maintained on a high folic acid diet with either low or recommended choline had higher weekly food intake (6%, P < 0.05) and body weight-gain (9%, P < 0.01). In contrast, offspring from dams fed the HCHF gestational diet were not different from those born to dams fed the RCRF (control) diet, highlighting the mitigating effects of a balanced choline and FA gestational diet. Conclusions Increased intakes of choline mitigate the effects of high FA diets. Maternal dietary choline interacts with FA on the long-term programming of food intake regulation in the offspring; emphasizing a need for more attention to improving choline intakes by women of child-bearing age. Funding Sources This research was funded by the Canadian Institute of Health Research, Institute of Nutrition, Metabolism and Diabetes (CIHR-INMD).

scholarly journals High Choline During Pregnancy Reduces Characteristics of the Metabolic Syndrome in Male Wistar Rat Offspring Fed a High Fat Post-Weaning Diet

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1313-1313
Author(s):  
Rola Hammoud ◽  
Emanuela Pannia ◽  
Ruslan Kubant ◽  
Rebecca Simonian ◽  
G Harvey Anderson
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Wistar Rat ◽  
Visceral Adiposity ◽  
Metabolic Phenotype ◽  
Energy Regulation ◽  
High Fat ◽  
Rat Offspring ◽  
Postnatal Environment

Abstract Objectives The prenatal period is a critical time for fetal development, programming the offspring's later-life health in response to the postnatal environment. We have shown that a high maternal choline diet programs long-term energy regulation leading to higher food intake and weight-gain in mature rat offspring fed a normal fat diet. However, the offspring's response to an obesogenic post-weaning diet has not been described. We aim to elucidate the interaction between the choline content of the gestational diet (GD) and fat content of the post-weaning diet (PWD) on male Wistar rat offspring's long-term metabolic phenotype. Methods Pregnant Wistar rats were fed an AIN-93G diet with either recommended choline (RC, 1g/kg diet choline bitartrate) or high choline (HC, 2.5-fold). Male pups were weaned to either a normal (10%) fat (RC-NF and HC-NF) or a high (45%) fat (RC-HF and HC-HF) diet for 17 weeks. Dependent measures were body weight, food intake, visceral adiposity, plasma glucoregulatory hormones and triglycerides, and plasma and hepatic free fatty acids (FFAs). Data were analyzed with 2-way ANOVA for main effects of GD and PWD and their interaction. Measures with significant interaction effects were followed by a Student's T-test comparing groups stratified by PWD. Results HC-HF offspring had lower body weight (7%, P &lt; 0.05), and visceral adiposity (15%, P &lt; 0.05), but no difference in food intake compared to RC-HF. HC-HF offspring had lower insulin (18%, P &lt; 0.05), HOMA-IR (24%, P &lt; 0.01), and plasma triglycerides (30%, P &lt; 0.05) but no difference in leptin. Total hepatic ω-3 FFAs (30%, P &lt; 0.05) were higher and ω-6/ω-3 (P &lt; 0.01) was lower in HC-HF compared to RC-HF, indicating an ameliorated metabolic phenotype in HC-HF offspring. In contrast, HC-NF offspring had higher food intake (8%, P &lt; 0.01) and body weight (6%, P &lt; 0.05) and no difference in adiposity compared to RC-NF. They also had higher plasma leptin adjusted for adiposity (22%, P &lt; 0.05) but not insulin or HOMA-IR compared to RC-NF. Hepatic C16:1n-7/C16:0 ratio was higher in HC-NF compared to RC-NF, suggestive of dysregulated lipid metabolism. Conclusions Gestational choline supplementation is associated with improved long-term metabolic regulation in male Wistar rat offspring fed a high fat post-weaning diet. Funding Sources CIHR-Institute of Nutrition, Metabolism, and Diabetes.

Pharmacological actions of the peptide hormone amylin in the long-term regulation of food intake, food preference, and body weight

2007 ◽  
Vol 293 (5) ◽  
pp. R1855-R1863 ◽  
Author(s):  
Christine Mack ◽  
Julie Wilson ◽  
Jennifer Athanacio ◽  
James Reynolds ◽  
Kevin Laugero ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Locomotor Activity ◽  
Food Intake ◽  
Energy Expenditure ◽  
Food Preference ◽  
Body Weight Gain ◽  
The Body ◽  
High Fat

The ability of amylin to reduce acute food intake in rodents is well established. Longer-term administration in rats (up to 24 days) shows a concomitant reduction in body weight, suggesting energy intake plays a significant role in mediating amylin-induced weight loss. The current set of experiments further explores the long-term effects of amylin (4–11 wk) on food preference, energy expenditure, and body weight and composition. Furthermore, we describe the acute effect of amylin on locomotor activity and kaolin consumption to test for possible nonhomeostatic mechanisms that could affect food intake. Four-week subcutaneous amylin infusion of high-fat fed rats (3–300 μg·kg−1·day−1) dose dependently reduced food intake and body weight gain (ED50for body weight gain = 16.5 μg·kg−1·day−1). The effect of amylin on body weight gain was durable for up to 11 wks and was associated with a specific loss of fat mass and increased metabolic rate. The body weight of rats withdrawn from amylin (100 μg·kg−1·day−1) after 4 wks of infusion returned to control levels 2 wks after treatment cessation, but did not rebound above control levels. When self-selecting calories from a low- or high-fat diet during 11 wks of infusion, amylin-treated rats (300 μg·kg−1·day−1) consistently chose a larger percentage of calories from the low-fat diet vs. controls. Amylin acutely had no effect on locomotor activity or kaolin consumption at doses that decreased food intake. These results demonstrate pharmacological actions of amylin in long-term body weight regulation in part through appetitive-related mechanisms and possibly via changes in food preference and energy expenditure.

scholarly journals Regulation of energy expenditure and substrate oxidation by short-chain fatty acids

2019 ◽  
Vol 242 (2) ◽  
pp. R1-R8 ◽  
Author(s):  
Alia H Sukkar ◽  
Aaron M Lett ◽  
Gary Frost ◽  
Edward S Chambers
Keyword(s):  
Fatty Acids ◽  
Body Weight ◽  
Weight Gain ◽  
Energy Expenditure ◽  
Lipid Oxidation ◽  
Dietary Fibre ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Present Review

Short-chain fatty acids (SCFAs) are metabolites produced from the fermentation of dietary fibre by the gut microbiota. High-fibre diets have been associated with lower weight gain and a number of reports have therefore investigated if these positive effects of a dietary fibre on body weight can be replicated through the direct administration of SCFAs. Many of these studies have reported that SCFAs can prevent or attenuate long-term body weight gain by increasing energy expenditure through increased lipid oxidation. The aim of the present review is to therefore evaluate the current evidence for an effect of SCFAs on whole-body energy expenditure and to assess the potential underlying mechanisms. The available data highlights that SCFAs can exert multiple effects at various organ and tissue sites that would cumulatively raise energy expenditure via a promotion of lipid oxidation. In conclusion, the present review proposes that dietary interventions and other therapies that augment gut-derived SCFAs and systemic availability may present an effective strategy to improve long-term energy balance and body weight management.

The effect of high multivitamin diet during pregnancy on food intake and glucose metabolism in Wistar rat offspring fed low-vitamin diets post weaning

2011 ◽  
Vol 2 (5) ◽  
pp. 302-310 ◽  
Author(s):  
I. M. Y. Szeto ◽  
P. S. P. Huot ◽  
S. A. Reza-López ◽  
A. Jahan-mihan ◽  
G. H. Anderson
Keyword(s):  
Metabolic Syndrome ◽  
Food Intake ◽  
Insulin Response ◽  
Fold Increase ◽  
Wistar Rat ◽  
Oral Glucose ◽  
Glucose Response ◽  
Rat Offspring ◽  
Vitamin Content ◽  
The Metabolic Syndrome

Rat offspring born to dams fed a high multivitamin diet (HV) are shown to have increased risks of obesity and metabolic syndrome. We hypothesized that a low-vitamin postweaning diet would enhance these characteristics in offspring born to HV dams. During pregnancy, Wistar rats were fed the AIN-93G diet with or without a 10-fold increase in vitamin content. In Experiment 1, at weaning, males were fed the recommended diet (RV) or a diet with 1/3 the vitamin content (1/3 RV) for 12 weeks. In Experiment 2, males and females were fed the RV diet or 1/6 RV diet for 35 weeks. Body weight was measured on a weekly basis, food intake on a daily basis, and for 1 h after an overnight fast following glucose gavage at 6, 12 and 24 weeks. Blood glucose and insulin responses to an oral glucose load were measured at 30 weeks. Males from HV dams, compared with those from RV dams, gained more weight in Experiment 1 (+7%,P< 0.05) and Experiment 2 (+11%,P< 0.0001), along with higher glucose response (+33%,P< 0.05). The 1/6 RV pup diet led to lower weight gain in males (−16%,P< 0.0001) and females (−13%,P< 0.0005), and lower food intake in males (−9%,P< 0.01) independent of the gestational diet. Females on the 1/6 RV diet and from HV dams had higher 1 h food intake (+36%,P< 0.05) and lower insulin response (−25%,P< 0.05) compared with those from RV dams. Exposure of the offspring to low-vitamin diets did not amplify the expression of the metabolic syndrome observed in those born to dams fed an HV diet.

Gestational folic acid content alters the development and function of hypothalamic food intake regulating neurons in Wistar rat offspring post-weaning

2018 ◽  
Vol 23 (2) ◽  
pp. 149-160 ◽  
Author(s):  
Neil Victor Yang ◽  
Emanuela Pannia ◽  
Diptendu Chatterjee ◽  
Ruslan Kubant ◽  
Mandy Ho ◽  
...  
Keyword(s):  
Folic Acid ◽  
Food Intake ◽  
Acid Content ◽  
Wistar Rat ◽  
Rat Offspring ◽  
And Function

scholarly journals Long-term intake of saccharin decreases post-absortive energy expenditure at rest and is associated to greater weight gain relative to sucrose in wistar rats

2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Denise Entrudo Pinto ◽  
Kelly Carraro Foletto ◽  
Ramiro Barcos Nunes ◽  
Pedro Dal Lago ◽  
Marcello Casaccia Bertoluci
Keyword(s):  
Weight Gain ◽  
Energy Expenditure ◽  
Wistar Rats

Comparison of long-term feeding pattern between male and female Fischer 344 rats: influence of estrous cycle

1996 ◽  
Vol 270 (2) ◽  
pp. R413-R419 ◽  
Author(s):  
A. Laviano ◽  
M. M. Meguid ◽  
J. R. Gleason ◽  
Z. J. Yang ◽  
T. Renvyle
Keyword(s):  
Weight Gain ◽  
Food Intake ◽  
Estrous Cycle ◽  
Meal Size ◽  
Female Rats ◽  
Fischer 344 Rats ◽  
Male And Female ◽  
Fischer 344 ◽  
Males And Females

We studied the effect of gender on food intake, meal number, and meal size in eight 10-wk-old female and seven age-matched male Fischer 344 rats for 44 consecutive days. Although food intake (g/100 g body wt) was similar in males and females (5.42 +/- 0.10 vs. 5.13 +/- 0.13 g food.day-1.100 g body wt-1, respectively; not significant), weight gain in males was approximately seven times greater than in female rats (1.49 +/- 0.07 vs. 0.21 +/- 0.03 g/day, respectively; P < 0.001). During this time, males had a relatively constant food intake. They increased their meal size but decreased their meal number. In female rats, food intake was relatively stable for the duration of the study, despite cyclically and reciprocally recurring changes in meal number and meal size, which are synchronized with the estrous cycle. Data confirm that net food intake is a dynamic process and suggest that, in the rat, the homeostasis of food intake in response to external as well as internal stimuli is maintained via the modulation of meal number and size.

A specific dose of grape seed-derived proanthocyanidins to inhibit body weight gain limits food intake and increases energy expenditure in rats

2016 ◽  
Vol 56 (4) ◽  
pp. 1629-1636 ◽  
Author(s):  
Joan Serrano ◽  
Àngela Casanova-Martí ◽  
Andreu Gual ◽  
Anna Maria Pérez-Vendrell ◽  
M. Teresa Blay ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Food Intake ◽  
Energy Expenditure ◽  
Body Weight Gain ◽  
Grape Seed

scholarly journals Should Protocols for Weight Change During Pregnancy Include Information About the Previous Weight History of the Woman Who Is Pregnant? (P22-015-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Ann Macpherson-Sanchez
Keyword(s):  
Weight Gain ◽  
In Utero ◽  
Long Term Effects ◽  
Funding Sources ◽  
Relative Contribution ◽  
Weight History ◽  
Increased Risk ◽  
History Of ◽  
Key Phrases

Abstract Objectives Recent research has indicated that an increase in weight is frequently caused by prior famine or Self-Induced Weight Loss (SIWL). The purpose of the literature search was to evaluate if famine or SIWL, in a woman who is contemplating pregnancy or who is currently pregnant, could have long term effects on the child to be born. Methods Pub Med was searched using the key phrases “Pregnancy and Famine or Starvation”, and “Gestational Weight Gain”, both limited to Humans, with no limit as to dates of publication. Results The earliest famine study found was published in 1976 and indicated that men born during the Dutch Famine (1944–45) had higher obesity rates if they were exposed to famine during the first half of pregnancy and lower rates if they experienced famine in the third trimester or the first few months of life. Other publications report results of pregnancy outcomes before, during, and after the Holocaust (1940–45), the Dutch Famine and famines in China (1959–61), Biafra (1968–70), and Bangladesh (1974–75). Long-term famine related problems include increased risk of overweight, obesity, Type 2 Diabetes, coronary heart disease, hypertension, and metabolic syndrome. Additional studies extend this observation to those who live in poverty with corresponding uncertainty about food resources. The most complete studies were published after 2004. Studies less than 18 months indicate that SIWL may be effective. However, with individuals followed 6 years or more either long-term weight gain occurs, or additional SIWL. Pregnancy protocols advocate specific limits to weight gain during pregnancy based on pre-pregnancy or early pregnancy BMI and recommend total weight gain ranges using usual BMI classifications. They do not ask about the weight history of the woman or if she has ever engaged in SIWL. BMI is based on height and weight and does not take into consideration the relative contribution of bone and muscle mass differentiated from fat mass. The size of the baby at birth is not an adequate indicator of actual health status. Conclusions An individual is conceived, lives in utero, and then is born. Caloric undernutrition in utero and during childhood can produce increased body fat and result in non-communicable diseases that are commonly related to obesity. Funding Sources Pension, University of Puerto Rico. Supporting Tables, Images and/or Graphs

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