PMID- 3475724 OWN - NLM STAT- MEDLINE DCOM- 19870828 LR - 20211203 IS - 0262-1746 (Print) IS - 0262-1746 (Linking) VI - 27 IP - 2-3 DP - 1987 May TI - Alteration of mercuric chloride-induced autoimmune glomerulonephritis in brown-Norway rats by herring oil, evening primrose oil and OKY-046 a selective TXA-synthetase inhibitor. PG - 129-49 AB - Repeated subcutaneous (SC) injections of mercuric chloride (MC) in Brown Norway (BN) rats induce an autoimmune glomerulonephritis (GN) due to antiglomerular basement membrane (BM) antibody deposition in the glomeruli. The aim of this study was to investigate the effects on MC-induced autoimmune GN of OKY-046, a selective TXA-synthetase inhibitor herring oil (HO), which is rich in eicosapentaenoic acid (EPA) (5.6%) precursor of the three series of prostaglandins (PGs) and of (inactive) thromboxane (TXA3), and evening primrose oil (EPO), which is rich in linoleic acid (LA) (72%) and gamma-linolenic acid (GLNA) (9%), precursors of the one series of PGs, mainly PGE1, and of (inactive) TXA1. The administration of OKY-046 significantly inhibited proteinuria, partially prevented fibrin thrombi (FT) formation in the glomeruli, decreased urinary TXB, enhanced 6ketoPGF excretion and, increased survival rate of the animals from 60% (group receiving only MC) to 86%. However, OKY-046 did not prevent body weight (BW) loss or the development and deposition of IgG in the glomeruli. Increased intake of HO (80 days prior and throughout the experiment) and avoidance of arachidonic acid (AA) intake produced an effect comparable to that of OKY-046 in the rats. Furthermore, HO significantly inhibited the deposition of IgG in the glomeruli, increased the survival rate of the animals to 100% and further enhanced the increased urinary PGE excretion induced by MC. However, HO did not prevent BW loss in the animals. Increased intake of EPO and avoidance of AA intake produced an effect comparable to that of HO. Additionally, EPO completely prevented BW loss induced by MC in these animals. These findings suggest that the metabolites of AA, EPA and GLNA play an important role either in the development or in the modulation of this model of MC induced GN. FAU - Papanikolaou, N AU - Papanikolaou N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Scotland TA - Prostaglandins Leukot Med JT - Prostaglandins, leukotrienes, and medicine JID - 8206868 RN - 0 (Acrylates) RN - 0 (Fatty Acids, Essential) RN - 0 (Fatty Acids, Unsaturated) RN - 0 (Fish Oils) RN - 0 (Hypolipidemic Agents) RN - 0 (Immunoglobulin G) RN - 0 (Linoleic Acids) RN - 0 (Methacrylates) RN - 0 (Plant Oils) RN - 0 (Prostaglandins E) RN - 0 (Thromboxanes) RN - 3Q9L08K71N (evening primrose oil) RN - 53GH7MZT1R (Mercuric Chloride) RN - 58962-34-8 (6-Ketoprostaglandin F1 alpha) RN - 78YC2MAX4O (gamma-Linolenic Acid) RN - EC 5.3.99.5 (Thromboxane-A Synthase) RN - L256JB984D (ozagrel) SB - IM MH - 6-Ketoprostaglandin F1 alpha/urine MH - Acrylates/*therapeutic use MH - Animals MH - Autoimmune Diseases/*prevention & control MH - *Fatty Acids, Essential MH - Fatty Acids, Unsaturated/*therapeutic use MH - Fish Oils/*therapeutic use MH - Glomerulonephritis/*prevention & control MH - Hypolipidemic Agents/*therapeutic use MH - Immunoglobulin G/metabolism MH - Linoleic Acids MH - Mercuric Chloride MH - Methacrylates/*therapeutic use MH - Oenothera biennis MH - Plant Oils MH - Prostaglandins E/urine MH - Proteinuria/prevention & control MH - Rats MH - Thromboxane-A Synthase/*antagonists & inhibitors/pharmacology MH - Thromboxanes/urine MH - gamma-Linolenic Acid EDAT- 1987/05/01 00:00 MHDA- 1987/05/01 00:01 CRDT- 1987/05/01 00:00 PHST- 1987/05/01 00:00 [pubmed] PHST- 1987/05/01 00:01 [medline] PHST- 1987/05/01 00:00 [entrez] AID - 10.1016/0262-1746(87)90066-7 [doi] PST - ppublish SO - Prostaglandins Leukot Med. 1987 May;27(2-3):129-49. doi: 10.1016/0262-1746(87)90066-7.