Does prolonged biliary obstructive jaundice sensitize the liver to endotoxemia? 2009

Ayako Iida, and Hiroyuki Yoshidome, and Takashi Shida, and Fumio Kimura, and Hiroaki Shimizu, and Masayuki Ohtsuka, and Yasuhiro Morita, and Dan Takeuchi, and Masaru Miyazaki
Department of General Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.

Biliary obstructive jaundice (OJ) is an important clinical consideration concerning high bacteremic risk. Hepatocyte apoptosis is one of the causes of cholestatic liver injury. The aim of the current study was to examine the precise pathway and time course of hepatocyte apoptosis during OJ with LPS administration and to determine if OJ sensitizes the liver to endotoxemia. Male C57BL/6 mice were subjected to bile duct ligation and division and were administered with LPS at 3 (OJ3) or 14 (OJ14) days after surgery. Fas ligand expression, poly (adenosine diphosphate-ribose) polymerase p85 fragment immunohistochemistry, activation of caspases 3, 8, and 9, serum alanine aminotransferase levels, and hepatic adenosine triphosphate (ATP) contents were examined. Survival after LPS administration in male C57BL/6 or gld/gld (Fas ligand-deficient) mice was determined. The expression of Fas ligand increased during OJ. After LPS administration, the expression of cleaved caspases 3 and 8 increased in Sham3, Sham14, OJ3, and OJ14 mice, and it significantly increased in OJ14 compared with other mice. Poly (adenosine diphosphate-ribose) polymerase p85 immunohistochemistry showed significant hepatocyte apoptosis after LPS administration in OJ14 mice relative to OJ3. In OJ14 with LPS administration, ATP contents significantly decreased and alanine aminotransferase levels increased. Hepatocyte apoptosis was decreased in gld/gld OJ14 mice compared with C57BL/6 OJ14. All C57BL/6 OJ14 mice with LPS died, but survival in gld/gld OJ14 significantly ameliorated. In prolonged OJ with LPS administration, hepatocyte apoptosis depending on Fas ligand expression significantly increased in association with a decrease in ATP contents, thus resulting in liver necrapoptosis.

UI MeSH Term Description Entries
D008070 Lipopolysaccharides Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed) Lipopolysaccharide,Lipoglycans
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008107 Liver Diseases Pathological processes of the LIVER. Liver Dysfunction,Disease, Liver,Diseases, Liver,Dysfunction, Liver,Dysfunctions, Liver,Liver Disease,Liver Dysfunctions
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000255 Adenosine Triphosphate An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter. ATP,Adenosine Triphosphate, Calcium Salt,Adenosine Triphosphate, Chromium Salt,Adenosine Triphosphate, Magnesium Salt,Adenosine Triphosphate, Manganese Salt,Adenylpyrophosphate,CaATP,CrATP,Manganese Adenosine Triphosphate,MgATP,MnATP,ATP-MgCl2,Adenosine Triphosphate, Chromium Ammonium Salt,Adenosine Triphosphate, Magnesium Chloride,Atriphos,Chromium Adenosine Triphosphate,Cr(H2O)4 ATP,Magnesium Adenosine Triphosphate,Striadyne,ATP MgCl2
D000410 Alanine Transaminase An enzyme that catalyzes the conversion of L-alanine and 2-oxoglutarate to pyruvate and L-glutamate. (From Enzyme Nomenclature, 1992) EC 2.6.1.2. Alanine Aminotransferase,Glutamic-Pyruvic Transaminase,SGPT,Alanine-2-Oxoglutarate Aminotransferase,Glutamic-Alanine Transaminase,Alanine 2 Oxoglutarate Aminotransferase,Aminotransferase, Alanine,Aminotransferase, Alanine-2-Oxoglutarate,Glutamic Alanine Transaminase,Glutamic Pyruvic Transaminase,Transaminase, Alanine,Transaminase, Glutamic-Alanine,Transaminase, Glutamic-Pyruvic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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