Cannabinoid Receptors Overexpression in a Rat Model of Irritable Bowel Syndrome (IBS) after Treatment with a Ketogenic Diet

The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate the molecular mechanisms by which a low-carbohydrate diet, such as KD, can improve gastrointestinal symptoms and functions in an animal model o...

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Published inInternational journal of molecular sciences Vol. 22; no. 6; p. 2880
Main Authors Gigante, Isabella, Tutino, Valeria, Russo, Francesco, De Nunzio, Valentina, Coletta, Sergio, Armentano, Raffaele, Crovace, Alberto, Caruso, Maria Gabriella, Orlando, Antonella, Notarnicola, Maria
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Abstract The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate the molecular mechanisms by which a low-carbohydrate diet, such as KD, can improve gastrointestinal symptoms and functions in an animal model of IBS by evaluating possible changes in intestinal tissue expression of endocannabinoid receptors. In rats fed a KD, we detected a significant restoration of cell damage to the intestinal crypt base, a histological feature of IBS condition, and upregulation of CB1 and CB2 receptors. The diet also affected glucose metabolism and intestinal membrane permeability, with an overexpression of the glucose transporter GLUT1 and tight junction proteins in treated rats. The present data suggest that CB receptors represent one of the molecular pathways through which the KD works and support possible cannabinoid-mediated protection at the intestinal level in the IBS rats after dietary treatment.
AbstractList The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate the molecular mechanisms by which a low-carbohydrate diet, such as KD, can improve gastrointestinal symptoms and functions in an animal model of IBS by evaluating possible changes in intestinal tissue expression of endocannabinoid receptors. In rats fed a KD, we detected a significant restoration of cell damage to the intestinal crypt base, a histological feature of IBS condition, and upregulation of CB1 and CB2 receptors. The diet also affected glucose metabolism and intestinal membrane permeability, with an overexpression of the glucose transporter GLUT1 and tight junction proteins in treated rats. The present data suggest that CB receptors represent one of the molecular pathways through which the KD works and support possible cannabinoid-mediated protection at the intestinal level in the IBS rats after dietary treatment.
The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate the molecular mechanisms by which a low-carbohydrate diet, such as KD, can improve gastrointestinal symptoms and functions in an animal model of IBS by evaluating possible changes in intestinal tissue expression of endocannabinoid receptors. In rats fed a KD, we detected a significant restoration of cell damage to the intestinal crypt base, a histological feature of IBS condition, and upregulation of CB1 and CB2 receptors. The diet also affected glucose metabolism and intestinal membrane permeability, with an overexpression of the glucose transporter GLUT1 and tight junction proteins in treated rats. The present data suggest that CB receptors represent one of the molecular pathways through which the KD works and support possible cannabinoid-mediated protection at the intestinal level in the IBS rats after dietary treatment.The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate the molecular mechanisms by which a low-carbohydrate diet, such as KD, can improve gastrointestinal symptoms and functions in an animal model of IBS by evaluating possible changes in intestinal tissue expression of endocannabinoid receptors. In rats fed a KD, we detected a significant restoration of cell damage to the intestinal crypt base, a histological feature of IBS condition, and upregulation of CB1 and CB2 receptors. The diet also affected glucose metabolism and intestinal membrane permeability, with an overexpression of the glucose transporter GLUT1 and tight junction proteins in treated rats. The present data suggest that CB receptors represent one of the molecular pathways through which the KD works and support possible cannabinoid-mediated protection at the intestinal level in the IBS rats after dietary treatment.
Author De Nunzio, Valentina
Coletta, Sergio
Russo, Francesco
Tutino, Valeria
Crovace, Alberto
Caruso, Maria Gabriella
Notarnicola, Maria
Armentano, Raffaele
Gigante, Isabella
Orlando, Antonella
AuthorAffiliation 4 Animal Facility, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; alberto.crovace@irccsdebellis.it
5 Ambulatory of Clinical Nutrition, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; gabriella.caruso@irccsdebellis.it
1 Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; isabella.gigante87@gmail.com (I.G.); valeria.tutino@irccsdebellis.it (V.T.); valentinadx@hotmail.it (V.D.N.)
2 Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; francesco.russo@irccsdebellis.it (F.R.); antonella.orlando@irccsdebellis.it (A.O.)
3 Histopathology Unit, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; sergiofalaut@hotmail.it (
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– name: 3 Histopathology Unit, National Institute of Gastroenterology, “S. de Bellis” Research Hospital, 70013 Castellana Grotte (BA), Italy; sergiofalaut@hotmail.it (S.C.); raffaele.armentano@irccsdebellis.it (R.A.)
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Keywords rat model
cannabinoid receptors
irritable bowel syndrome
ketogenic diet
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Snippet The administration of a ketogenic diet (KD) has been considered therapeutic in subjects with irritable bowel syndrome (IBS). This study aimed to investigate...
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StartPage 2880
SubjectTerms Animals
Cannabinoids - metabolism
Carbohydrates
Diet
Diet, Ketogenic - adverse effects
Disease Models, Animal
Endocannabinoids - genetics
Gene expression
Glucose
Humans
Inflammation
Intestinal Mucosa - drug effects
Intestinal Mucosa - metabolism
Irritable bowel syndrome
Irritable Bowel Syndrome - diet therapy
Irritable Bowel Syndrome - genetics
Irritable Bowel Syndrome - pathology
Metabolism
Motility
Nervous system
Permeability
Protein expression
Proteins
Rats
Receptor, Cannabinoid, CB1 - genetics
Receptor, Cannabinoid, CB2 - genetics
Receptors, Cannabinoid - genetics
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Title Cannabinoid Receptors Overexpression in a Rat Model of Irritable Bowel Syndrome (IBS) after Treatment with a Ketogenic Diet
URI https://www.ncbi.nlm.nih.gov/pubmed/33809047
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Volume 22
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