The purpose of this study will be to study the association between the level of psychic symptomatic of anorexia nervosa (AN) (intensity of food restriction, symptoms of anxiety and depression) and alteration of host environment symbiosis and the mechanism (dysbiosis of intestinal microbiota, increase of intestinal permeability, immunity alteration and low-grade inflammation).
This is a monocentric study aims to characterise the intestinal microbiota of anorexia nervosa patients with malnutrition, in comparison with the control subject, by DNA sequencing and metagenomic method. The interaction of intetinal microbiota with the host will be studied through the mecanistic studies and various parameters of alteration of symbiosis (intestinal permeability, inflammation) and their association with psychic symptoms of anorexia nervosa. The objective of this approche is to have not only a descrition of genomic of material of sampling, but also an overview of its potential functioning.
Study Type
OBSERVATIONAL
Enrollment
120
Stool and blood samples
Service de Nutrition Clinique, Hôpital Paul Brousse (APHP)
Villejuif, France
RECRUITINGEating Disorder
By Eating Disorder Inventory (EDI-3)
Time frame: at baseline
Anxio-depressive symptomatologic assessements by HAD score
By HAD score
Time frame: at baseline
Anxio-depressive symptomatologic assessements by scale of Beck BDI 13
By scale of Beck BDI 13
Time frame: at baseline
Anxio-depressive symptomatologic assessements by LSAS Lieboweitz social anxiety scale
By LSAS Lieboweitz social anxiety scale
Time frame: at baseline
Anxio-depressive symptomatologic assessements by MOCI
By Maudsley Obsessions and compulsions inventory (MOCI).
Time frame: at baseline
Anxio-depressive symptomatologic assessements
By HAD score, scale of Beck BDI 13, LSAS Lieboweitz social anxiety scale, Maudsley Obsessions and compulsions inventory (MOCI).
Time frame: at baseline
Physical exercise
By Global physical activity questionnaire (GPAQ)
Time frame: at baseline
Biological parameter
By serum serotonin level
Time frame: at baseline
Diversity indice
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By index de Sympson et Shannon
Time frame: at baseline
Intestinal permeability
By serum zonulin level
Time frame: at baseline
Immunity alteration
By interleukins and CRP level
Time frame: at baseline
Liver function
Cytolyse analysis in serum
Time frame: at baseline
BMI
Calculate of BMI.
Time frame: at baseline
Body composition
By Dexa-Scan.
Time frame: at baseline
Energy expenditure
Calculate of indirect calorimetry and blood parameters
Time frame: at baseline
Intestinal functional disorders
By Francis scale, ,transit with pellets and abdomen x-ray
Time frame: at baseline
Gene and species richness
By 16S rRNA gene sequencing method and Metagenomics
Time frame: at baseline
Circulating mitochondrial DNA copy number
By telemore size and HLA genotyping
Time frame: at baseline
Heart damage
By Left Ventricle Ejection Fraction \< 50% structural parameters on ultrasound
Time frame: at baseline
Presence of Autistic symptoms (1)
By Glasgow Sensory Questionnaire GSQ)
Time frame: at baseline
Presence of Autistic symptoms (2)
By The SWedish Eating Assessment for Autism spectrum disorders GSQ)
Time frame: at baseline
EDI
QUESTIONNAIRE EDI or EATING DISORDER INVENTORY (Eating disorder inventory 2nd edition (EDI-2)
Time frame: at baseline
Eating Disorder Diagnostic
By Eating Disorder Diagnostic Scale (EDDS)-DSM-5 VERSION (2015 Wiley Periodicals)
Time frame: at baseline
Eating behaviors assessment
By the Detail and Flexibility Questionnaire (DFlex).
Time frame: at baseline