Inhibition of tumor necrosis factor-alpha production retards liver regeneration after partial hepatectomy in rats. 1997

T Kimura, and I Sakaida, and S Terai, and Y Matsumura, and K Uchida, and K Okita
First Department of Internal Medicine, Yamaguchi University, School of Medicine, Japan.

We studied the effects of a tumor necrosis factor-alpha (TNF-alpha) production inhibitor E3330, [(2E)-3-[5-(2,3-dimethoxy-6-methyl-1,4-benzoquinolyl)]-2-nonyl-2-+ ++propenoic acid] on liver regeneration in rats subjected to 70% partial hepatectomy. The BrdU labeling index was 53.5 +/- 3.8% 24 h after partial hepatectomy alone and was significantly inhibited by E3330 (25 and 50 mg/ kg) in a dose-dependent manner (43.3 +/- 2.1% and 19.0 +/- 10.3%, respectively; p < 0.05, p < 0.01). In these 3 groups, TNF-alpha protein levels in liver tissue were 187 +/- 18, 123 +/- 47, and 89 +/- 33 pg/mg total protein, respectively, with a significant decrease by E3330 administration (p < 0.01). TNF-alpha mRNA expression in liver tissue was also reduced by E3330. These results suggest that TNF-alpha promotes liver regeneration after partial hepatectomy.

UI MeSH Term Description Entries
D008115 Liver Regeneration Repair or renewal of hepatic tissue. Liver Regenerations,Regeneration, Liver,Regenerations, Liver
D008297 Male Males
D011422 Propionates Derivatives of propionic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxyethane structure. Propanoate,Propanoic Acid,Propionate,Propanoates,Propanoic Acid Derivatives,Propanoic Acids,Propionic Acid Derivatives,Propionic Acids,Acid, Propanoic,Acids, Propanoic,Acids, Propionic,Derivatives, Propanoic Acid,Derivatives, Propionic Acid
D006498 Hepatectomy Excision of all or part of the liver. (Dorland, 28th ed) Hepatectomies
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
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D014409 Tumor Necrosis Factor-alpha Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS. Cachectin,TNF-alpha,Tumor Necrosis Factor Ligand Superfamily Member 2,Cachectin-Tumor Necrosis Factor,TNF Superfamily, Member 2,TNFalpha,Tumor Necrosis Factor,Cachectin Tumor Necrosis Factor,Tumor Necrosis Factor alpha
D015870 Gene Expression The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION. Expression, Gene,Expressions, Gene,Gene Expressions
D016227 Benzoquinones Benzene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups. 1,2-Benzoquinones,1,4-Benzoquinones,Benzodiones,2,5-Cyclohexadiene-1,4-Diones,o-Benzoquinones,p-Benzoquinones

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