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Fast Morphological Gallbladder Changes Triggered by a Hypercholesterolemic Diet

Alberto López-Reyes, Denise Clavijo-Cornejo, Javier Fernández-Torres, Daniel Medina-Luna, Erendida G. Estrada-Villaseñor, Luis E. Gómez-Quiroz, Marwin Gutiérrez, Julio Granados, Gilberto Vargas-Alarcón, Carlos Pineda, Hiram García, Luis A. Morales-Garza, María C. Gutiérrez-Ruiz, Karina Martínez-Flores

Abstract

Introduction and aim. Obesity is a worldwide epidemic problem, described as a risk factor for hepatic diseases, such as non-alcoholic fatty liver disease and other pathologies related to development of cholesterol crystals and cholesterol gallbladder stones. It has been reported that cholesterol overload may cause hepatic damage; however, little is known about the effects of an acute hypercholesterolemic diet on the gallbladder. The aim of this manuscript was to evaluate the impact of a cholesterol-rich diet on the gallbladder. Material and methods. The study included ten eight-week-old C57BL6 male mice, which were divided into two study groups and fed different diets for 48 h: a hypercholesterolemic diet and a balanced Chow diet. After 48 h, the mice were analyzed by US with a Siemens Acuson Antares equipment. Mice were subsequently sacrificed to carry out a cholesterol analysis with a Refloton System (Roche), a crystal analysis with a Carl Zeiss microscope with polarized light, and a histological analysis with Hematoxylin-eosin staining. Results. The hypercholesterolemic diet induced an increase in gallbladder size and total cholesterol content in the bile, along with important histological changes. Conclusion. Cholesterol overloads not only trigger hepatic damage, but also affect the gallbladder significantly.

Key words. Histopathology, Cholesterol, Ultrasound, Lithiasis, Bile

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The Official Journal of the Mexican Association of Hepatology, the Latin-American Association for the Study of the Liver and the Canadian Association for the Study of the Liver

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