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14 results on '"MESH : Feeding Behavior"'

1. The role of taste in food acceptance at the beginning of complementary feeding

Author

Sophie Nicklaus, Sylvie Issanchou, Camille Schwartz, Claire Chabanet, Christine Lange, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), and Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Male, Taste, MESH: Infant Nutritional Physiological Phenomena, MESH : Infant Nutritional Physiological Phenomena, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, Umami, MESH : Taste, MESH: Eating, Food group, Eating, Behavioral Neuroscience, Ingredient, Medicine, Ingestion, MESH : Female, Food science, Infant Nutritional Physiological Phenomena, MESH : Food Preferences, digestive, oral, and skin physiology, MESH : Infant, MESH : Feeding Behavior, MESH: Infant, nutrition, MESH: Feeding Behavior, Eating behavior, Female, MESH : Eating, MESH : Male, food acceptance, Experimental and Cognitive Psychology, Weaning, Affect (psychology), complementary feeding, Food Preferences, MESH: Weaning, Humans, MESH: Food Preferences, MESH: Humans, behavior, business.industry, MESH : Humans, Infant, Food acceptance, Feeding Behavior, MESH : Weaning, MESH: Male, taste preference, MESH: Taste, business, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

article présenté lors du 18. Annual Meeting of the Society-for-the-Study-of-Ingestive-Behavior ; Pittsburgh, Pennsylvanie (Etats-Unis) - (2010-07-13 - 2010-07-17) / Rencontres; International audience; Introduction of solid foods is a major step in the establishment of eating behavior and is likely to affect children's health. However, the role of taste in acceptance of new foods, in particular in the first months of complementary feeding, is not fully understood and was the aim of the present study. Infants had to be in good health to participate (N=74). First, the infants' reactions to new foods were recorded by their parents between the ages of 5 and 7 months using a 4-point-scale ranging from very negative to very positive. Taste intensities of infant foods were scored by a trained panel and foods were clustered into groups showing similar taste profiles. Infants' reactions were used to calculate new food acceptance (NFA) defined as the average reaction towards a group of foods showing a similar taste profile. Second, preferences for the five basic tastes over water were measured using a 4-bottle test at 6 months old comparing intake of tastant solutions to water. Taste acceptance was evaluated through ingestion ratio (IR=intake of tastant solutions/intake of tastant solutions and water). NFAs were compared across food groups. Kendall correlations were calculated between NFA and IR. Most reactions (88%) to new foods were positive. However, NFA varied according to the taste profile of the foods: vegetables in which salt or a salty ingredient was added were more accepted than plain vegetables (P

Published
2011
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2. Parental practices perceived by children using a French version of the Kids’ Child Feeding Questionnaire

Author

Christine Lange, Sandrine Monnery-Patris, Claire Chabanet, Dominique Adèle Cassuto, Sylvie Issanchou, Natalie Rigal, Vincent Boggio, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Université Paris Nanterre - Département de Psychologie, Université Paris Nanterre (UPN), CHU Dijon, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Département de psychologie, Université Paris Nanterre ( UPN ), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), CHU Pitié-Salpêtrière [APHP], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)

Subjects
Male, confirmatory factor analysis, obesity, food intake, MESH: Parenting, 030309 nutrition & dietetics, Cross-sectional study, [SDV]Life Sciences [q-bio], restriction, Overweight, MESH: Regression Analysis, MESH: Eating, Developmental psychology, Eating, MESH : Cross-Sectional Studies, 0302 clinical medicine, MESH : Child, MESH : Regression Analysis, Surveys and Questionnaires, MESH: Child, MESH: Obesity, MESH : Female, Mass index, Overeating, MESH : Body Weight, General Psychology, Language, MESH : Parenting, 2. Zero hunger, child, 0303 health sciences, Nutrition and Dietetics, Parenting, girl, MESH : Questionnaires, MESH : Feeding Behavior, body, MESH: Interviews as Topic, Confirmatory factor analysis, style, MESH: Language, mass index, MESH: Feeding Behavior, Regression Analysis, MESH : Obesity, Female, medicine.symptom, Psychology, Clinical psychology, Psychopathology, MESH : Eating, MESH : Male, MESH: Factor Analysis, Statistical, MESH : Factor Analysis, Statistical, body mass index, 030209 endocrinology & metabolism, MESH: Body Mass Index, Interviews as Topic, 03 medical and health sciences, MESH: Cross-Sectional Studies, Cronbach's alpha, MESH : Language, parental feeding practice, medicine, Humans, overweight, kids' child feeding, MESH: Humans, [ SDV ] Life Sciences [q-bio], questionnaire, MESH: Questionnaires, MESH : Humans, Body Weight, association, Feeding Behavior, MESH: Male, MESH: Body Weight, weight status, MESH : Body Mass Index, pressure to eat, Cross-Sectional Studies, MESH : Interviews as Topic, adolescent, Factor Analysis, Statistical, MESH: Female, Body mass index
Abstract

WOS:000293677900024; International audience; About 18% of 6-11-year-old French children are overweight, of whom 3.3% are obese. Parental feeding practices, especially restriction and pressure-to-eat, seem to promote overeating in children. Since no tool was available for the perception of parental feeding practices of French children, our aim was to validate a French version of the Kids'Child Feeding Questionnaire (KCFQ, Carper, Orlet Fischer, & Birch, 2000), and to determine the relationship between KCFQ's dimensions and children's standardised body mass index (BMI z-scores). The questionnaire was completed by 240 normal-weighted or overweight children between the age of 9 and 11. The validation was based on a confirmatory factor analysis. The internal consistency of factors was confirmed using Cronbach's coefficients. After deleting some items (3 for the pressure-to-eat subscale and 3 for the restriction subscale), the two-factor model (pressure-to-eat, restriction) provided an acceptable fit (χ² (34)=64; RMSEA=.06; CFI=0.93; NNFI=.90), and satisfactory internal consistency. Children's perception of restriction was significantly and positively correlated with BMI z-scores (r=36, p

Published
2011
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3. Repeated exposure of infants at complementary feeding to a vegetable puree increases acceptance as effectively as flavor-flavor learning and more effectively than flavor-nutrient learning

Author

Eloïse, Remy, Sylvie, Issanchou, Claire, Chabanet, Sophie, Nicklaus, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), and Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Male, MESH: Infant Nutritional Physiological Phenomena, MESH : Infant Nutritional Physiological Phenomena, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, MESH : Vegetables, MESH : Taste, MESH : Learning, Cynara scolymus, Surveys and Questionnaires, flavor-nutrient learning, MESH : Female, Infant Nutritional Physiological Phenomena, MESH : Food Preferences, learning, infants, weaning, MESH : Questionnaires, MESH : Infant, MESH : Feeding Behavior, MESH: Follow-Up Studies, MESH: Infant, Daucus carota, repeated exposure, MESH: Cynara scolymus, Taste, MESH: Feeding Behavior, Female, Infant Food, vegetables, MESH : Daucus carota, MESH : Male, MESH : Cynara scolymus, complementary feeding, Food Preferences, MESH: Daucus carota, Humans, MESH: Food Preferences, MESH: Infant Food, conditioned satiation, MESH: Humans, MESH: Questionnaires, MESH : Humans, Infant, MESH : Follow-Up Studies, Feeding Behavior, MESH : Infant Food, flavor-flavor learning, MESH: Vegetables, MESH: Male, MESH: Learning, MESH: Taste, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Follow-Up Studies
Abstract

Clé UT : 000320894800025 ; Supported by the European Community's Seventh Framework Program (FP7/2007-2013) under the grant agreement no. FP7-245012-HabEat.; International audience; Children's vegetable consumption is below the public health recommendations. This study aimed to compare learning mechanisms to increase vegetable acceptance in infants at complementary feeding, namely repeated exposure (RE), flavor-flavor learning (FFL), and flavor-nutrient learning (FNL); measure the stability of the learning effect; and examine the impact of infants' feeding history on vegetable acceptance. The study was composed of a preexposure test, an exposure period, a postexposure test, and tests at 2-wk, 3-mo, and 6-mo follow-ups. At pre- and postexposure, a basic artichoke purée and carrot purée were presented to 95 French infants (6.4 ± 0.8 mo). During the exposure period, infants were randomly split into 3 groups and were exposed 10 times to the basic (RE group; 2 kJ/g; n = 32), a sweet (FFL group; 2 kJ/g; n = 32), or an energy-dense (FNL group; 6 kJ/g; n = 31) artichoke purée 2 or 3 times/wk. To evaluate acceptance, intake (g) and liking were recorded at home by parents. Between pre- and postexposure, intake of the basic artichoke purée significantly increased in the RE (+63%) and FFL (+39%) groups but not in the FNL group; liking increased only in the RE group (+21%). After exposure, artichoke was as much consumed and as much liked as carrot only in the RE group. Learning of artichoke acceptance was stable up to 3 mo postexposure. Initial artichoke intake was significantly related to the number of vegetables offered before the study started. RE is as effective as and simpler to implement than FFL and more effective than FNL for increasing vegetable acceptance at complementary feeding.

Published
2013
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4. Effect of preterm birth and birth weight on eating behavior at 2 y of age

Author

Jean-Christophe Rozé, Dominique Darmaun, Sandrine Monnery-Patris, Clotilde Des Robert, Patricia Parnet, Christine Lange, Valérie Amarger, Cyril Flamant, Sophie Nicklaus, Audrey Migraine, Centre hospitalier universitaire de Nantes (CHU Nantes), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), INRA: UMR1280 Physiologie des adaptations (UMR1280), Institut National de la Recherche Agronomique (INRA), INRA: UMR1280 Physiologie des adaptations, Funding Agency: Regional Health Agency of Pays de la Loire + Regional council of Burgundy + French National Research Agency, Centre hospitalier universitaire de Nantes ( CHU Nantes ), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), INRA: UMR1280 Physiologie des adaptations ( UMR1280 ), and Institut National de la Recherche Agronomique ( INRA )

Subjects
Male, Pediatrics, MESH: Premature Birth, 030309 nutrition & dietetics, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, MESH : Prospective Studies, Medicine (miscellaneous), MESH: Logistic Models, Pilot Projects, MESH : Child, Preschool, Cohort Studies, 0302 clinical medicine, born, MESH: Pregnancy, Pregnancy, MESH: Gestational Age, Surveys and Questionnaires, Birth Weight, MESH : Female, Prospective Studies, MESH: Cohort Studies, 0303 health sciences, child, Nutrition and Dietetics, MESH : Pilot Projects, MESH : Questionnaires, Gestational age, MESH : Infant, MESH : Feeding Behavior, MESH : Adult, MESH: Infant, 3. Good health, MESH : Premature Birth, Eating disorders, Premature birth, Child, Preschool, Cohort, MESH: Feeding Behavior, Multilevel Analysis, Educational Status, Premature Birth, Female, MESH: Multilevel Analysis, Cohort study, Adult, medicine.medical_specialty, MESH : Male, Birth weight, growth, MESH : Cohort Studies, Gestational Age, feeding practice, Lower risk, MESH: Multivariate Analysis, 03 medical and health sciences, 030225 pediatrics, medicine, sex, Humans, human, MESH: Birth Weight, childhood, MESH: Humans, business.industry, MESH: Questionnaires, MESH : Humans, MESH: Child, Preschool, MESH : Multivariate Analysis, Infant, MESH : Birth Weight, MESH: Adult, Feeding Behavior, medicine.disease, MESH: Pilot Projects, MESH: Male, MESH: Prospective Studies, MESH : Pregnancy, Logistic Models, MESH : Multilevel Analysis, Multivariate Analysis, gestational-age, business, protein, MESH: Educational Status, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, MESH : Educational Status, MESH : Logistic Models, MESH : Gestational Age
Abstract

Background: Preterm infants frequently present eating difficulties in early childhood. Determinants of these difficulties are not known. Objective: We assessed the influence of neonatal and maternal characteristics on eating behaviors at 2 y of age. Design: The following 2 cohorts were compared: 234 preterm chil- dren born ,33 wk of gestational age from the POLYmorphisme genetique, Nutrition et Comportement Alimentaire cohort and 245 term children from the Observation des Preferences ALImentaires du Nourrisson et de l'Enfant cohort. Eating behaviors were assessed by using the validated Children's Eating Difficulties Questionnaire, which assesses the following 2 dimensions: a low drive to eat and narrow food repertoire. Each dimension was graded from 2 to 10 with more severe difficulties reflected by a higher score. Children in the upper quintile were classified as having eating disorders. Results: Compared with term children, preterm children had a worse drive-to-eat score (4.3 6 1.6 compared with 3.6 6 1.5, respectively; P = 0.001) and a marginally lower food-repertoire score (5.0 6 1.5 compared with 4.8 6 1.6, respectively; P = 0.05). In a multilevel logistic regression model, female sex (adjusted OR (aOR): 1.76; 95% CI: 1.08, 2.88; P = 0.025) and birth weight less than 21 z score (aOR: 2.88; 95% CI: 1.47, 5.67; P = 0.002) but not gestational age were associated with a worse drive to eat. A maternal level of education beyond high school was associated with lower risk of a poor food- repertoire score (aOR: 0.54; 95% CI: 0.32, 0.90; P = 0.02). Conclusions: Preterm children have more eating difficulties than term children do, but after adjustment for maternal and neonatal characteris- tics, gestational age is not associated with impaired eating behaviors at the age of 2 y. Female sex, a low maternal level of education, and less than 21 SD intrauterine growth are associated with eating difficulties at 2 y of age. This trial was registered at clinicaltrials.gov as NCT 00663572. Am J Clin Nutr doi: 10.3945/ajcn.112.051151.

Published
2013
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5. Orofacial reactivity to the sight and smell of food stimuli. Evidence for anticipatory liking related to food reward cues in overweight children

Author

Marie Gaillet, Véronique Boulanger, Robert Soussignan, Benoist Schaal, Tao Jiang, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mécanique de Lille - FRE 3723 (LML), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Regional Council of Burgundy [PARI], Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Université de Lille, Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Mécanique de Lille - FRE 3723 ( LML ), and Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Male, MESH: Facial Expression, 030309 nutrition & dietetics, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, MESH : Vision, Ocular, MESH : Overweight, MESH: Energy Intake, Overweight, eating behavior, Developmental psychology, Body Mass Index, 0302 clinical medicine, MESH : Child, MESH: Child, MESH: Smell, MESH : Female, Overeating, Reactivity (psychology), Child, General Psychology, 0303 health sciences, Nutrition and Dietetics, MESH : Food Preferences, digestive, oral, and skin physiology, MESH : Feeding Behavior, Anticipation, MESH : Hyperphagia, Facial Expression, Smell, Categorization, MESH: Feeding Behavior, Female, sensory cue, MESH: Hyperphagia, medicine.symptom, MESH : Food, Psychology, Social psychology, MESH: Food, hedonic, MESH: Anticipation, Psychological, MESH : Male, overweight child, reward sensitivity, 030209 endocrinology & metabolism, pleasure, Hyperphagia, Satiation, MESH : Facial Expression, facial reactivity, MESH: Body Mass Index, 03 medical and health sciences, Food Preferences, Reward, medicine, Humans, MESH: Vision, Ocular, MESH: Overweight, MESH: Food Preferences, Sensory cue, Vision, Ocular, MESH : Anticipation, Psychological, MESH: Reward, Facial expression, MESH: Humans, MESH: Satiation, MESH : Humans, MESH : Energy Intake, Feeding Behavior, medicine.disease, Anticipation, Psychological, Obesity, MESH: Male, bmi, MESH : Body Mass Index, Food, food liking, MESH : Smell, MESH : Reward, Energy Intake, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, MESH : Satiation
Abstract

International audience; Whether food liking may be a risk factor of overconsumption and overweight/obesity remains a controversial issue. So far, most studies used subjective reports to assess consummatory behavior, approaches that might overlook subtle or implicit hedonic changes to sensory properties of foods. Therefore, we used a cue-exposure approach by recording different measures of hedonic processes (orofacial reactivity, self-rated pleasantness, food preference) in 6-11 years old overweight (n=20) and normal-weight (n=20) children. Children were exposed to the smell and sight of high and low-energy density food stimuli and to non-food stimuli during pre- and post-prandial states. Their facial and verbal responses were videotaped and parent's reports of children's eating styles and appetitive traits were collected using the Children's Eating Behavior Questionnaire (CEBQ). Results showed that orofacial reactivity, as an objective measure of anticipatory liking, was more discriminative than self reports, with overweight children displaying more lip sucking than normal-weight children when exposed to high energy food pictures and to food odorants. Orofacial reactivity to food cues was also associated with BMI and children's eating styles (food responsiveness, emotional overeating, and desire to drink). Finally, overweight children classified more frequently non-food odorants as members of the food category during the pre-prandial state than during the post-prandial state, suggesting a possible influence of affective/motivational bias on odor categorization. Our findings suggest that orofacial responsiveness may be relevant to assess the sensitivity to energy-dense food reward cues in overweight children and for signaling, as an index of anticipatory liking, a potential risk for the development of overweight/obesity.

Published
2012
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6. An overlooked aspect of the human breast: areolar glands in relation with breastfeeding pattern, neonatal weight gain, and the dynamics of lactation

Author

Benoist Schaal, Paul Sagot, Robert Soussignan, Sébastien Doucet, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Dijon-Dresden European Laboratories for Taste and Smell (EAL 549), Centre National de la Recherche Scientifique (CNRS), Service de Gynécologie Obstétrique, Médecine Foetale et Stérilité Conjugale - Chirurgie Gynécologie et Oncologique [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre d'épidémiologie des populations (CEP), Université de Bourgogne (UB)-Centre Régional de Lutte contre le cancer - Centre Georges-François Leclerc (CRLCC - CGFL), Université de Bourgogne (UB)-Centre Régional de Lutte contre le cancer Georges-François Leclerc [Dijon] (UNICANCER/CRLCC-CGFL), UNICANCER-UNICANCER, Dijon University hospital, CNRS, Ministry of Research, Paris (through University Paris 13), Regional Council of Burgundy, Dijon, Land Bavaria, Munich, Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Dijon-Dresden European Laboratories for Taste and Smell ( EAL 549 ), Centre National de la Recherche Scientifique ( CNRS ), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Centre d'épidémiologie des populations ( CEP ), Université de Bourgogne ( UB ) -Centre Régional de Lutte contre le cancer - Centre Georges-François Leclerc ( CRLCC - CGFL ), and Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)

Subjects
Male, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, MESH : Nipples, Breastfeeding, Physiology, Areolar glands, Weight Gain, Skin glands, 0302 clinical medicine, Child Development, Lactation, Medicine, MESH : Female, 030212 general & internal medicine, Breast, Young adult, Maternal Behavior, MESH: Breast, Areola, MESH : Body Weight, Human newborn, MESH: Infant, Newborn, Obstetrics and Gynecology, MESH : Maternal Behavior, MESH : Weight Gain, MESH : Feeding Behavior, MESH : Adult, Mother-Child Relations, MESH : Mother-Child Relations, medicine.anatomical_structure, Breast Feeding, Milk, MESH: Young Adult, Nipples, MESH: Breast Feeding, Mother-infant relation, MESH: Weight Gain, MESH: Feeding Behavior, Female, medicine.symptom, Adult, medicine.medical_specialty, Maternal behaviour, MESH: Lactation, MESH: Mother-Child Relations, MESH : Male, MESH : Young Adult, Body weight, MESH : Infant, Newborn, Sucking, 03 medical and health sciences, Young Adult, 030225 pediatrics, Humans, MESH: Infant Behavior, MESH : Child Development, Gynecology, MESH: Child Development, MESH: Humans, business.industry, MESH : Lactation, Body Weight, MESH : Humans, Infant, Newborn, Montgomery's glands, MESH: Adult, Feeding Behavior, MESH: Nipples, Olfaction, MESH: Male, MESH: Body Weight, MESH: Maternal Behavior, Pediatrics, Perinatology and Child Health, Infant Behavior, MESH : Breast Feeding, MESH : Breast, MESH : Infant Behavior, business, Weight gain, Breast feeding, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

WOS: 000301474900013; International audience; The early nursing-sucking relationship is not to be taken for granted in humans. A number of factors can either facilitate or mitigate its optimal establishment on the mother's or newborn's sides. Among these factors, a morphological feature of human mothers' breasts--the areolar glands (AG)--has been identified as potentially important. Three day-old infants display attraction during the presentation of the native secretions of the AG, suggesting that they could influence the newborn's behaviour during breastfeeding. The present study assessed this topic in a sample of 121 Caucasian mother-infant dyads. The areolae of these women were screened during the first 3 postnatal days in parallel with the infant's sucking performance, body weight fluctuations and time to lactation onset. On average, 97% of the women bore AG, 80.2% having 1-20 units per areola and 33% showing AG excreting a visible fluid. The endowment in AG appeared positively linked with neonatal growth after birth and with the speed of lactation onset: infants of primiparous women with lower AG numbers had a lower weight gain than those of mothers with higher AG numbers. Further, it took longer to primiparae with lower AG counts to set on lactation. This study confirms and extends the fact that AG, in interaction with maternal experience, might influence the initiation of the breastfeeding relationship.

Published
2012
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7. Influence of substrate oxidation on the reward system, no role of dietary fibre

Author

Romain Despalins, Peio Touyarou, Sylvie Issanchou, Laurent Brondel, Claire Sulmont-Rossé, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), and Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Dietary Fiber, Male, MESH: Oxidation-Reduction, MESH: Dietary Carbohydrates, 030309 nutrition & dietetics, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, satiety, Appetite, MESH: Food Habits, MESH: Energy Intake, Choice Behavior, MESH: Eating, Eating, Ingestion, MESH : Female, Food science, Palatability, MESH : Body Weight, General Psychology, MESH : Food Habits, media_common, Morning, 2. Zero hunger, 0303 health sciences, MESH : Food Preferences, Nutrition and Dietetics, dietary fibre, 05 social sciences, digestive, oral, and skin physiology, MESH: Energy Metabolism, MESH : Feeding Behavior, Bread, MESH : Adult, MESH : Dietary Carbohydrates, reward system, MESH: Young Adult, MESH: Feeding Behavior, Female, Psychology, Oxidation-Reduction, food preferences, MESH : Appetite, Adult, MESH : Eating, MESH : Male, media_common.quotation_subject, MESH : Young Adult, Satiation, MESH: Choice Behavior, MESH: Bread, Young Adult, 03 medical and health sciences, Reward system, sensation de faim, MESH : Choice Behavior, Dietary Carbohydrates, Humans, 0501 psychology and cognitive sciences, 050102 behavioral science & comparative psychology, MESH: Food Preferences, MESH : Oxidation-Reduction, MESH: Humans, MESH: Satiation, MESH : Humans, Body Weight, Dietary fibre, MESH : Energy Intake, MESH: Adult, Feeding Behavior, MESH: Male, MESH: Body Weight, MESH : Energy Metabolism, Respiratory quotient, MESH: Dietary Fiber, Energy density, MESH: Appetite, MESH : Dietary Fiber, Energy Intake, Energy Metabolism, MESH : Bread, metabolism, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, MESH : Satiation
Abstract

International audience; It has been suggested that a high intake of dietary fibre helps regulate energy intake and satiety. The present study aimed to examine whether dietary fibre influenced the liking and wanting components of the food reward system, the metabolic state or subsequent intake. Five sessions involving 32 normal-weight subjects (16 men and 16 women, 30.6 ± 7.6 year) were held. The sessions differed in the composition of the bread eaten during breakfasts (dietary fibre content varied from 2.4 to 12.8 g/100 g). Several factors such as the palatability, weight, volume, energy content and macronutrient composition of the breakfasts were adjusted. Energy expenditure, the respiratory quotient (R), olfactory liking for four foods, wanting for six other foods, and hunger sensations were evaluated before and after the breakfast, as well as before a morning snack. The results showed no significant differences after ingestion of the various breads. Interestingly, R correlated with olfactory liking and with wanting, which highlights in an original manner the influence of the metabolic state on hedonic sensations for food. In conclusion, dietary fibre was found to have no effect on olfactory liking and wanting, and had no detectable effect on satiety sensations or on subsequent energy intake.

Published
2011
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8. Mammary odor cues and pheromones: mammalian infant-directed communication about maternal state, mammae, and milk

Author

Schaal, Benoist, Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique ( CNRS ), Centre des Sciences du Goût (CSG), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût ( CSG ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), ProdInra, Archive Ouverte, and Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD)-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
MESH: Olfactory Perception, MESH: Animals, Suckling, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, [ SCCO.PSYC ] Cognitive science/Psychology, MESH: Mammary Glands, Human, MESH : Pheromones, Pheromones, mother milk, WALLABY MACROPUS-EUGENII, MESH: Smell, MESH : Female, MESH: Animals, MESH: Pheromones, MESH: Milk, Human, newborn rabbit, transnatal olfactory continuity, MESH: Mammary Glands, Animal, MESH : Infant, MESH : Feeding Behavior, MESH: Pheromones, Human, MESH : Adult, MESH : Milk, Human, MESH : Odors, MESH: Infant, Mother-Child Relations, Animals, Suckling, nipple-attachment behavior, Smell, MESH : Mother-Child Relations, Breast Feeding, Milk, MESH: Breast Feeding, [SCCO.PSYC] Cognitive science/Psychology, [SCCO.PSYC]Cognitive science/Psychology, MESH: Feeding Behavior, Female, Cues, MESH: Animal Communication, Adult, MESH: Lactation, MESH: Mother-Child Relations, wallaby, Pheromones, Human, RAT PUPS, amniotic-fluid, MESH : Mammary Glands, Animal, MESH : Mammary Glands, Human, NEWBORN RABBITS, MESH : Animals, Suckling, Mammary Glands, Animal, MESH : Olfactory Perception, Animals, Humans, Lactation, Mammary Glands, Human, prenatal flavor exposure, MESH: Odors, MESH: Humans, MESH : Cues, Milk, Human, MESH : Lactation, MESH : Humans, breast-milk, Infant, MESH: Adult, Feeding Behavior, major urinary protein, Olfactory Perception, Animal Communication, MESH: Milk, [SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, MOTHERS MILK, MESH : Milk, MESH : Breast Feeding, Odorants, rat pup, MESH : Smell, MESH : Animals, MESH : Pheromones, Human, macropus-eugenii, MESH: Female, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, MESH : Animal Communication, MESH: Cues
Abstract

International audience; Neonatal mammals are exposed to an outstandingly powerful selective pressure at birth, and any mean to alleviate their localization effort and accelerate acceptance to orally grasp a nipple and ingest milk should have had advantageous consequences over evolutionary time. Thus, it is essential for females to display a biological interface structure that is sensorily conspicuous and executively easy for their newborns. Females' strategy to increase the conspicuousness of nipples could only exploit the newborns' most advanced and conserved sensory systems, touch and olfaction, and selection has accordingly shaped tactilely and olfactorily conspicuous mammary structures. This evolutionary modification has worked either by affecting structural features of mammaries or indirectly by affecting maternal behavioral propensities to create olfactory traces on them. These predictions are considered here in mammalian cases that have received empirical attention among marsupials, rodents, lagomorphs, ungulates, carnivores, and primates. It appears that broadcasting chemical cues and/or signals from the mammae is a pan-mammalian reproductive strategy to pilot neonatal arousal, motivation and attraction to the mother, provide assistance in localizing and orally grasping the mammae, and boost up learning. But the ways by which these chemical cues are produced and assembled on the mammae are both diverse between species and complex within species, offering an outstanding opportunity for comparative analyses in chemical communication.

Published
2010
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9. Asthma, obesity, and eating behaviors according to the diagnostic and statistical manual of mental disorders IV in a large population-based sample of adolescents

Author

Sofia Kalaboka, Isabella Annesi-Maesano, Marie Choquet, D. Moreau, Troubles du comportement alimentaire de l'adolescent (UMR_S 669), Université Paris-Sud - Paris 11 (UP11)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Epidémiologie des maladies infectieuses et modélisation (ESIM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Moreau D, Kalaboka S, Choquet M, Annesi-Maesano I., Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Sud - Paris 11 (UP11), Troubles du comportement alimentaire de l'adolescent ( UMR_S 669 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris-Sud - Paris 11 ( UP11 ), Epidémiologie des maladies infectieuses et modélisation ( ESIM ), and Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM )

Subjects
Male, MESH: Asthma, MESH : Prevalence, Medicine (miscellaneous), MESH : Overweight, Overweight, 0302 clinical medicine, Surveys and Questionnaires, MESH : Socioeconomic Factors, Ethnicity, Odds Ratio, Prevalence, MESH: Obesity, MESH : Female, 030212 general & internal medicine, 10. No inequality, MESH : Sports, 2. Zero hunger, education.field_of_study, Nutrition and Dietetics, Mental Disorders, MESH : Questionnaires, [ SDV.SPEE ] Life Sciences [q-bio]/Santé publique et épidémiologie, MESH : Feeding Behavior, 3. Good health, Diagnostic and Statistical Manual of Mental Disorders, Eating disorders, MESH: Feeding Behavior, MESH : Obesity, Female, MESH: Ethnic Groups, France, medicine.symptom, Psychosocial, MESH : Ethnic Groups, Clinical psychology, Sports, medicine.medical_specialty, MESH: Socioeconomic Factors, MESH: Attitude, Adolescent, MESH : Attitude, MESH : Male, Population, MESH : Asthma, 03 medical and health sciences, MESH : Adolescent, MESH: Diagnostic and Statistical Manual of Mental Disorders, medicine, Humans, MESH: Mental Disorders, Obesity, MESH : Mental Disorders, MESH : France, education, MESH: Overweight, MESH: Prevalence, Asthma, MESH: Adolescent, MESH: Humans, business.industry, MESH: Questionnaires, MESH : Humans, Odds ratio, Feeding Behavior, medicine.disease, MESH: Odds Ratio, MESH: Male, MESH: France, 030228 respiratory system, Attitude, Socioeconomic Factors, Physical therapy, MESH : Odds Ratio, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, MESH: Sports, MESH : Diagnostic and Statistical Manual of Mental Disorders, business, Body mass index, MESH: Female
Abstract

International audience; BACKGROUND: Obesity is related to asthma, but factors influencing this relation have not been clearly defined. OBJECTIVE: This study was designed to assess the role of eating behaviors and weight concerns in the association between obesity and asthma. DESIGN: A population-based sample of 11,710 adolescents, recruited from 186 secondary schools of 8 educational districts in France, completed a self-administered standardized questionnaire including DSM IV (Diagnostic and Statistical Manual of Mental Disorders) questions on eating disorders. RESULTS: Obesity (body mass index >/=95th percentile according to age and sex) was associated with asthma in girls (odds ratio: 1.48; 95% CI: 1.05, 2.08) but not in boys (odds ratio: 1.07; 95% CI: 0.75, 1.54). Both obese and asthmatic adolescents were more likely to have abnormal eating behaviors and weight concerns (P < 0.05). In an adjusted polytomous logistic model with 4 categories based on the presence and/or the absence of asthma and obesity as the dependent variable, the odds ratio for weight concerns increased from a minimum value for asthmatic nonobese adolescents (odds ratio: 6.3; P < 0.001) with nonasthmatic, nonobese adolescents as the reference group. Similar patterns were observed for overweight. CONCLUSIONS: Our data suggest that, besides well-known factors such as genetic background, direct mechanical effects, and reduced physical activity, abnormal eating behaviors and weight concerns might intervene in the relation between obesity and asthma. Psychosocial dimension has to be considered to disentangle the complex relation between obesity and asthma in adolescence in view of prevention.

Published
2009
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10. Pulsatile cerebrospinal fluid and plasma ghrelin in relation to growth hormone secretion and food intake in the sheep

Author

Yves Tillet, M.-T. Bluet-Pajot, Elodie Chaillou, Dominique Grouselle, Alain Caraty, Philippe Zizzari, Jacques Epelbaum, Institut de psychiatrie et neurosciences (U894 / UMS 1266), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut National de la Recherche Agronomique (INRA)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Tours-Institut Français du Cheval et de l'Equitation [Saumur]-Institut National de la Recherche Agronomique (INRA), Centre de Psychiatrie et Neurosciences (U894), Institut National de la Recherche Agronomique (INRA)-Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Grouselle, Dominique, Centre de Psychiatrie et Neurosciences ( CPN - U894 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Physiologie de la reproduction et des comportements [Nouzilly] ( PRC ), Institut National de la Recherche Agronomique ( INRA ) -Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours-Centre National de la Recherche Scientifique ( CNRS ), and Institut National de la Recherche Agronomique (INRA)-Institut Français du Cheval et de l'Equitation [Saumur]-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)

Subjects
MESH: Intestine, Small, Endocrinology, Diabetes and Metabolism, Growth hormone secretagogue receptor, Endogeny, MESH : Tissue Extracts, MESH: Eating, MESH: Stomach, Eating, 0302 clinical medicine, Endocrinology, Cerebrospinal fluid, Intestine, Small, MESH : Female, MESH: Animals, Receptor, 2. Zero hunger, MESH : Intestine, Small, 0303 health sciences, MESH: Tissue Extracts, Estradiol, MESH : Rats, Stomach, digestive, oral, and skin physiology, MESH : Feeding Behavior, Ghrelin, MESH : Estradiol, Growth hormone secretion, MESH : Ovariectomy, MESH: Feeding Behavior, Female, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], MESH: Estradiol, hormones, hormone substitutes, and hormone antagonists, pulsatile patterns, MESH : Eating, medicine.medical_specialty, MESH : Hypothalamus, MESH: Rats, Ovariectomy, Hypothalamus, MESH: Ghrelin, MESH: Ovariectomy, MESH: Sheep, MESH : Stomach, CSF, MESH : Sheep, MESH : Growth Hormone, Biology, 03 medical and health sciences, Cellular and Molecular Neuroscience, Internal medicine, medicine, Animals, Humans, Secretion, [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], plasma, 030304 developmental biology, Sheep, MESH: Humans, Tissue Extracts, Endocrine and Autonomic Systems, MESH : Humans, Feeding Behavior, MESH : Ghrelin, MESH: Hypothalamus, Rats, Growth Hormone, [ SDV.NEU ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], MESH: Growth Hormone, Secretagogue, MESH : Animals, MESH: Female, 030217 neurology & neurosurgery
Abstract

Elodie Chaillou and Dominique Grouselle contributed equally to this work.; International audience; As in other species, exogenous administration of ghrelin, an endogenous ligand for the growth hormone (GH) secretagogue receptors can stimulates feeding behaviour and GH secretion in the sheep. However, the importance of endogenous ghrelin for these two functions as well as its central or peripheral origin remained to be established. In the present study, cerebrospinal fluid (CSF) ghrelin concentrations were measured in five anoestrous ewes and found to be more than 1000-fold lower than circulating plasma levels, in keeping with the even lower concentration in hypothalamic compared to abomasum tissue extracts. Cluster analysis indicated that CSF ghrelin levels were markedly pulsatile, with a greater number of peaks than plasma ghrelin. Pulsatility parameters were closer for GH and CSF ghrelin than between GH and plasma ghrelin. Plasma ghrelin and GH levels were significantly correlated in three out of five ewes but CSF ghrelin and GH in one ewe only. Half of the CSF ghrelin episodes were preceded by a ghrelin peak in plasma with a 22-min delay. Cross-correlations between plasma GH and plasma or CSF ghrelin did not reach significance but a trend towards cross-correlation was observed from 20 to 0 min between plasma and CSF ghrelin. At 09.00 h, when food was returned to ewes, voluntary food intake did not elicit a consistent change in plasma or CSF ghrelin levels. By contrast, a peripheral ghrelin injection (1 mg, i.v.) immediately stimulated feeding behaviour and GH secretion. These effects were concomitant with a more than ten-fold increase in plasma ghrelin levels, whereas CSF ghrelin values only doubled 40-50 min after the injection. This suggests that peripherally-injected ghrelin crosses the blood-brain barrier, but only in low amount and with relatively slow kinetics compared to its effects on GH release and food intake. Taken together, the results obtained in the present study support the notion that, in the ovariectomised-oestradiol implanted sheep model, peripheral ghrelin injection rapidly induces GH secretion, and feeding behaviour, probably by acting on growth hormone secretagogue receptor subtype 1 located in brain regions in which the blood-brain barrier is not complete (e.g. the arcuate nucleus).

Published
2008
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11. Comparison of transfer and effects of Cd on rats exposed in a short experimental snail-rat food chain or to CdCl2 dosed food

Author

Lysiane Richert, Michaël Cœurdassier, Frédéric Gimbert, Renaud Scheifler, A. de Vaufleury, Hélène Martin, Sylvie Devaux, Alain Berthelot, Pierre-Marie Badot, Richard P. Cosson, F. Hispard, Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Mer, molécules et santé EA 2160 (MMS), Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques, Université de Nantes (UN)-Université de Nantes (UN), Laboratoire de Biologie Marine, Université de Nantes (UN)-ISOMer, Unité sous contrat biologie environnementale, Institut National de la Recherche Agronomique (INRA)-Université de Franche-Comté (UFC), Politiss, École des Hautes Études en Santé Publique [EHESP] (EHESP), Laboratoire de physique des milieux ionisés et applications (LPMIA), Université Henri Poincaré - Nancy 1 (UHP)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Pierre Aigrain (LPA), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), ANR-05-ECCO-0004,STARTT,Biodisponibilité, transferts et effets des éléments trace métalliques dans des réseaux trophiques terrestres : changements d'échelle spatiale et de niveau d'organisation biologique(2005), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques, Université de Nantes (UN)-Université de Nantes (UN)-Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chrono-environnement - UFC (UMR 6249) (LCE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Le Mans Université (UM)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques, Physique des milieux ionisés et applications (LPMIA), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), ANR: STARTT,STARTT, Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ) -Centre National de la Recherche Scientifique ( CNRS ), Mer, molécules et santé ( MMS ), Université de Nantes ( UN ), Université de Nantes ( UN ) -ISOMer, Institut National de la Recherche Agronomique ( INRA ) -Université de Franche-Comté ( UFC ), École des Hautes Études en Santé Publique [EHESP] ( EHESP ), Physique des milieux ionisés et applications ( LPMIA ), Université Henri Poincaré - Nancy 1 ( UHP ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Pierre Aigrain ( LPA ), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris ( FRDPENS ), Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Paris ( ENS Paris ) -Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Paris ( ENS Paris ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), and ANR : STARTT,STARTT

Subjects
0106 biological sciences, MESH: Intestine, Small, MESH : Biological Availability, Snails, Wistar, [ SDV.TOX.ECO ] Life Sciences [q-bio]/Toxicology/Ecotoxicology, 010501 environmental sciences, Small, Kidney, 01 natural sciences, Toxicology, chemistry.chemical_compound, Cadmium Chloride, Intestine, Small, Metallothionein, MESH: Animals, Food science, MESH: Snails, lcsh:Environmental sciences, MESH: Cadmium Chloride, General Environmental Science, MESH: Biological Availability, lcsh:GE1-350, MESH : Intestine, Small, Cadmium, MESH : Rats, MESH : Feeding Behavior, MESH : Food Chain, MESH : Kidney, 3. Good health, Intestine, medicine.anatomical_structure, Liver, MESH: Survival Analysis, Toxicity, MESH: Feeding Behavior, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, Food Chain, MESH: Rats, MESH : Cadmium Chloride, chemistry.chemical_element, Biological Availability, Biology, Cadmium chloride, MESH : Rats, Wistar, medicine, Ecotoxicology, Animals, Rats, Wistar, MESH: Food Chain, 0105 earth and related environmental sciences, 010604 marine biology & hydrobiology, MESH: Metallothionein, MESH : Liver, Feeding Behavior, MESH: Rats, Wistar, MESH: Kidney, Survival Analysis, Small intestine, MESH : Metallothionein, Bioavailability, Rats, chemistry, MESH : Snails, MESH : Animals, MESH : Survival Analysis, Toxicant, MESH: Liver
Abstract

Transfer and toxic effects of two cadmium (Cd) forms, inorganic (CdCl2 dosed rat food) or organic (contaminated snail-based rat food) were studied in Wistar rat. Cd concentrations in rat food were 0 and 2.5 μg Cd g−1 for both inorganic and organic forms and a high concentration of 100 μg Cd g−1 was also tested for the inorganic form. Rats were exposed for four weeks to contaminated food. Both forms of Cd were bioavailable to rats, with a percentage of transfer from food to rats of around 1% for all contaminated groups. Cd concentrations in rat tissues increased with increasing Cd concentrations in the food. Rats fed with organic form of Cd accumulated significantly more Cd in the main organ for Cd toxicity, the kidney, than those eating the inorganic form. Survival was not affected for any rat group but a decrease in growth and food consumption was observed for the inorganic form. As a defence system against Cd toxicity, rats increased their metallothionein (MT) synthesis at the highest Cd concentration in the target organs (kidney, liver and small intestine) and even did the same at low Cd concentrations (2.5 μg Cd g−1) in the kidney. At this low Cd concentration, MT induction was lower in the small intestine of rats ingesting organic Cd than those ingesting inorganic Cd. Bioavailability of organic and inorganic forms of Cd was similar, but subsequent Cd distribution within organs was different. This quantification of the trophic transfer of both inorganic and organic forms of a toxicant is a basis for a better assessment of the fate and effects of chemicals in food webs. Keywords: Bioavailability, Ecotoxicology, Metallothioneins

Published
2008
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12. Infection of foxes by Echinococcocus multilocularis in urban and suburban areas of Nancy, France: influence of feeding habits and environment

Author

Jacques Barrat, D. Augot, Patrick Giraudoux, Franck Boué, Christophe Caillot, Emmanuelle Robardet, Florence Cliquet, Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Université de Franche-Comté ( UFC ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire d'études et de recherches sur la rage et la pathologie des animaux sauvages, AFSSA, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), and Agence Française de Sécurité Sanitaire des Aliments (AFSSA)

Subjects
Male, Rural Population, Urban Population, Vulpes, Foxes, Vulpes vulpes, MESH : Echinococcus multilocularis, MESH : Echinococcosis, Grassland, 030308 mycology & parasitology, 0302 clinical medicine, MESH: Rural Population, Risk Factors, MESH: Risk Factors, MESH: Animals, MESH : Female, Predator, 2. Zero hunger, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, 0303 health sciences, geography.geographical_feature_category, biology, Age Factors, MESH : Feeding Behavior, MESH : Risk Factors, MESH: Urban Population, [ SDE.MCG ] Environmental Sciences/Global Changes, Infectious Diseases, rodents, MESH : Urban Population, MESH: Feeding Behavior, Female, France, Seasons, Veterinary (miscellaneous), [SDE.MCG]Environmental Sciences/Global Changes, MESH : Sex Factors, MESH : Male, 030231 tropical medicine, urbanization, Urban area, Echinococcus multilocularis, lcsh:Infectious and parasitic diseases, [ SDV.EE ] Life Sciences [q-bio]/Ecology, environment, 03 medical and health sciences, MESH: Echinococcosis, Sex Factors, MESH: Sex Factors, Echinococcosis, Urbanization, parasitic diseases, Animals, lcsh:RC109-216, Microtus, MESH : France, MESH: Age Factors, MESH: Echinococcus multilocularis, MESH : Foxes, geography, [ SDE.BE ] Environmental Sciences/Biodiversity and Ecology, MESH: Foxes, MESH : Seasons, Feeding Behavior, biology.organism_classification, MESH: Male, MESH: France, MESH : Rural Population, anthropogenic food, Insect Science, Animal Science and Zoology, Parasitology, MESH : Age Factors, MESH : Animals, Rural area, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, MESH: Seasons, MESH: Female, Demography
Abstract

International audience; This study evaluated the impact of biological and environmental factors on the infection of red foxes (Vulpes vulpes) by Echinococcus multilocularis in an endemic area of north-east France. From January 2004 to April 2006, 127 foxes were examined for E. multilocularis and their stomach contents analysed. The effect of year, season, age, sex and urbanisation level on E. multilocularis presence was estimated using a General Linear Model (GLM) with logit link, (i.e. logistic regression). Urbanisation level was the only influencing factor, with a decreasing gradient from rural [54%, CI 95% (40-68)] to peri-urban [31%, CI 95% (15-52)] and urban area [4%, CI 95% (0.7-15)]. The consumption of Arvicola terrestris and Microtus sp., grassland species, the main presumed intermediate hosts of E. multilocularis, was studied by the same approach. The two species were consumed less in the urban area and more in autumn than in spring. Anthropogenic food consumption was linked to urbanisation and to age. The frequency of anthropogenic food consumption decreased in the rural area. A global model explaining the presence of E. multilocularis and including urbanisation level and diet was then elaborated. Independently of urbanisation, there was a suggestion of less E. multilocularis infection with anthropogenic food consumption. Red foxes consuming Microtus sp. and A. terrestris had higher worm burden than those that did not. The results suggest that the decreasing gradient observed from rural to urban area is linked to behaviour and feeding habits.

Published
2008

13. Genetic study of the melanin-concentrating hormone receptor 2 in childhood and adulthood severe obesity

Author

Chantal Samson, Christophe Wachter, Claire Levy-Marchal, Maïté Tauber, Serge Hercberg, Barbara Heude, Catherine Le Stunff, Philippe Froguel, Victor Abkevich, Cécile Lecoeur, Maya Ghoussaini, Jacques Weill, Pierre Bougnères, David Meyre, Patrick Tounian, Vincent Vatin, Adib Younus, Génétique des maladies multifactorielles (GMM), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Myriad Genetics Inc, Recherche en épidémiologie et biostatistique, Université Paris-Sud - Paris 11 (UP11)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Physiopathologie Toulouse Purpan (CPTP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Unité de Recherche en Epidémiologie Nutritionnelle (UREN), Université Paris 13 (UP13)-Institut National de la Recherche Agronomique (INRA)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Pediatric Endocrine Unit, Hôpital Jeanne de Flandre [Lille], Pancréas endocrine et diabète de l'enfant, Institut National de la Santé et de la Recherche Médicale (INSERM), Immunologie, génétique et traitement des maladies métaboliques et du diabète (UMR_S 561), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Genomic Medicine, Imperial College London-Hammersmith Hospital, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de gastro-entérologie [CHU Trousseau], Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Sorbonne Paris Cité (USPC)-Université Paris 13 (UP13)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Institut National de la Recherche Agronomique (INRA), Université Paris-Sud - Paris 11 (UP11)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Physiopathologie Toulouse Purpan ex IFR 30 et IFR 150 (CPTP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Trousseau [APHP], Université Paris 13 (UP13)-Institut National de la Recherche Agronomique (INRA)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5), Génétique des maladies multifactorielles ( GMM ), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique ( CNRS ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Centre de Physiopathologie Toulouse Purpan (ex IFR 30 et IFR 150), Université Toulouse III - Paul Sabatier ( UPS ), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-IFR30-IFR150-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service de gastro-entérologie, Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Trousseau [APHP], Unité de Recherche en Epidémiologie Nutritionnelle ( UREN ), Université Paris 13 ( UP13 ) -Institut National de la Recherche Agronomique ( INRA ) -Conservatoire National des Arts et Métiers [CNAM] ( CNAM ) -Université Sorbonne Paris Cité ( USPC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Institut National de la Santé et de la Recherche Médicale ( INSERM ), Immunologie, génétique et traitement des maladies métaboliques et du diabète ( UMR_S 561 ), and Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 )

Subjects
Male, MESH : Molecular Sequence Data, Genetic Linkage, Endocrinology, Diabetes and Metabolism, Eating Disorders, Clinical Biochemistry, Appetite, MESH: DNA Replication, MESH: Receptors, G-Protein-Coupled, MESH: Amino Acid Sequence, Biochemistry, Receptors, G-Protein-Coupled, Body Mass Index, Cohort Studies, MESH : Exons, 0302 clinical medicine, Endocrinology, MESH : Child, MESH: Child, Receptors, MESH: Obesity, MESH : Female, Child, MESH: Cohort Studies, 2. Zero hunger, 0303 health sciences, Pituitary Hormone, MESH : Amino Acid Sequence, Linkage (Genetics), [ SDV.SPEE ] Life Sciences [q-bio]/Santé publique et épidémiologie, MESH: Receptors, Pituitary Hormone, MESH : Feeding Behavior, Exons, MESH : Adult, MESH : Receptors, Pituitary Hormone, MESH : Eating Disorders, Hormone receptor, MESH: Feeding Behavior, MESH : Obesity, MESH : Receptors, G-Protein-Coupled, Female, MESH: Eating Disorders, MESH : DNA Replication, MESH : Appetite, Adult, DNA Replication, medicine.medical_specialty, MESH : Male, Molecular Sequence Data, MESH : Cohort Studies, 030209 endocrinology & metabolism, Single-nucleotide polymorphism, Context (language use), Biology, Childhood obesity, MESH: Body Mass Index, Feeding and Eating Disorders, 03 medical and health sciences, G-Protein-Coupled, Internal medicine, medicine, SNP, Humans, Receptors, Pituitary Hormone, Obesity, Amino Acid Sequence, MESH : Haplotypes, Alleles, 030304 developmental biology, MESH: Humans, MESH: Molecular Sequence Data, MESH: Alleles, MESH : Humans, Biochemistry (medical), MESH: Adult, Odds ratio, Feeding Behavior, MESH: Haplotypes, medicine.disease, MESH: Male, Melanin-concentrating hormone receptor, MESH : Body Mass Index, Haplotypes, MESH: Appetite, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, MESH : Alleles, MESH: Exons, MESH: Female, MESH: Linkage (Genetics), MESH : Linkage (Genetics)
Abstract

http://jcem.endojournals.org/cgi/rapidpdf/jc.2006-2316v1; International audience; CONTEXT: The melanin-concentrating hormone receptor 2 (MCHR2) is a G protein-coupled receptor for melanin-concentrating hormone, a neuropeptide that plays an important role in feeding behaviors. MCHR2 maps on chromosome 6q16.3, in a susceptibility locus for childhood obesity. OBJECTIVE: The aim of this study was to investigate the association between MCHR2 variation and human obesity. DESIGN: Case control and family-based studies were performed. PARTICIPANTS: A total of 141 obese children and 24 nonobese adult subjects was sequenced, and case-control analyses were conducted using 628 severely obese children and 1,401 controls. RESULTS: There were 11 single nucleotide polymorphisms (SNPs) identified. We showed nominal association among -38,245 ATG A/G SNP (P = 0.03; 95% confidence interval 1.02-1.34; odds ratio 1.17), A76A T/C SNP (P = 0.03; 95% confidence interval 0.58-0.97; odds ratio 0.75), and childhood obesity. Analysis of 645 trios with childhood obesity supported further the A76A T/C association, showing an overtransmission to obese children of the at risk T allele (59.0%; P = 0.01), especially in children with most severe forms of obesity (Z score of body mass index > 4) (67.0%; P = 0.003). The A76A at risk T allele was also associated with overeating during meals (P = 0.02) in an additional group of 102 nonobese children. None of the MCHR2 variants, including the A76A SNP, showed association with adult severe obesity, although a trend for association of the T allele of this variant with food disinhibition (P = 0.06) and higher hunger (P = 0.09) was found. This variant was not associated with childhood obesity in an independent case-control study, including 1,573 subjects (P = 0.98). Moreover, the A76A SNP did not explain the linkage on the 6q locus. CONCLUSION: Our results altogether suggest that MCHR2 is not a major contributor to polygenic obesity and support a modest effect of the A76A SNP on food intake abnormalities in childhood.

Published
2007
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14. Environmental stress affects the expression of a carotenoid-based sexual trait in male zebra finches

Author

Cyril Eraud, Godefroy Devevey, Gabriele Sorci, Bruno Faivre, Maria Gaillard, Josiane Prost, Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Lipides - Nutrition - Cancer (U866) ( LNC ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon ( ENSBANA ), Study funded by ONCFS, Région Bourgogne, European Social Funding (Research grant and Research contract to) and the Université de Bourgogne, Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Lipides - Nutrition - Cancer (U866) (LNC), and Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon (ENSBANA)

Subjects
Male, 0106 biological sciences, Physiology, MESH: Beak, 01 natural sciences, Environmental stress, MESH: Quantitative Trait, Heritable, MESH: Animals, MESH : Finches, Carotenoid, MESH : Body Weight, Abiotic component, chemistry.chemical_classification, Sex Characteristics, 0303 health sciences, biology, Pigmentation, MESH : Pigmentation, Beak, carotenoids, MESH : Cold, food and beverages, MESH : Feeding Behavior, sexual traits, environmental stress, Cold Temperature, Trait, MESH: Feeding Behavior, MESH: Finches, Animals, Body Weight, Carotenoids/metabolism, Feeding Behavior, Finches/physiology, Quantitative Trait, Heritable, Sex characteristics, MESH: Sex Characteristics, MESH: Cold, MESH : Quantitative Trait, Heritable, MESH : Male, self-maintenance, Zoology, Context (language use), Aquatic Science, 010603 evolutionary biology, MESH: Pigmentation, 03 medical and health sciences, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Botany, Molecular Biology, Taeniopygia guttata, Ecology, Evolution, Behavior and Systematics, 030304 developmental biology, MESH : Carotenoids, MESH : Sex Characteristics, biology.organism_classification, MESH: Male, MESH : Beak, [ SDV.EE.ECO ] Life Sciences [q-bio]/Ecology, environment/Ecosystems, MESH: Body Weight, trade-offs, chemistry, Insect Science, MESH: Carotenoids, Animal Science and Zoology, Finches, MESH : Animals, Taeniopygia
Abstract

SUMMARY Abiotic factors including thermal stress are suggested to exert constrains on sexual ornaments through trade-offs between sexual displays and physiological functions related to self-maintenance. Given the health properties of carotenoid pigments, carotenoid-based ornaments offer a relevant context in which to investigate the effect of environmental stress, such as ambient temperature, on the production and maintenance of secondary sexual traits and, also, to explore the proximate mechanisms shaping their expression. In this study, we exposed male zebra finches (Taeniopygia guttata) to environmental stress by exposing them to two temperature regimes (6 and 26°C) over a 4 week period. Simultaneously, half of the males in each temperature group were supplemented with carotenoids, whereas the other half were not. The expression of a carotenoid-based sexual trait(bill colour) and the amount of circulating carotenoids were assessed before and at the end of the experiment. Carotenoid-supplemented males developed a redder bill, but the effect of supplementation was reduced under cold exposure. However, we found evidence that birds facing a cold stress were carotenoid limited, since supplemented males developed redder bills than the non-supplemented ones. Interestingly, while cold-exposed and non-supplemented males developed duller bills, they circulated a higher amount of carotenoids at the end of the experiment compared to the pre-experimental values. Together, these results suggest that ambient temperature might contribute to the modulation of the expression of carotenoid-based ornaments. Our findings suggest that carotenoids are a limiting resource under cold exposure and that they might be prioritized for self-maintenance at the expense of the ornament. The physiological functions related to self-maintenance that might have benefited from carotenoid saving are discussed.

Published
2007
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