1. Department of Biochemistry; Faculty of Medicine; Medical University of Lodz; Lodz Poland
2. Division of Gastroenterology; Department of Internal Medicine; Texas Tech University Health Sciences Center/Paul L. Foster School of Medicine; El Paso TX USA
3. Hotchkiss Brain Institute and Snyder Institute for Chronic Diseases; Department of Physiology and Pharmacology; University of Calgary; Calgary AB Canada
4. Division of Gastroenterology; Department of Medicine; Ludwig Maximilians University of Munich; Munich Germany
5. Department of Veterinary Sciences; Laboratory of Cell Biology and Histology; University of Antwerp; Antwerp Belgium
6. Walter Brendel Center of Experimental Medicine; University of Munich; Munich Germany