Culture‐Negative Neutrocytic Ascites: A Variant of Spontaneous Bacterial Peritonitis

Bruce A. Runyon, John C. Hoefs – 1 November 1984 – A review of the medical records of patients diagnosed as having “spontaneous bacterial peritonitis” (SBP) revealed 18 episodes of culture‐negative neutrocytic ascites (CNNA) in 17 patients. The following criteria were all required in order to qualify for this diagnosis: (i) an ascitic fluid neutrophil count greater than 500 cells per mm3; (ii) negative ascitic fluid culture (5); (iii) absence of an intraabdominal source of infection; (iv) no antibiotic treatment within 30 days, and (v) no evidence of pancreatitis.

Detection of Reovirus Type 3 in the Porta Hepatis of an Infant with Extrahepatic Biliary Atresia: Ultrastructural and Immunocytochemical Study

Rachel Morecki, Joy H. Glaser, Anne B. Johnson, Yvonne Kress – 1 November 1984 – This report describes immunocytochemical and ultrastructural methods which led to the identification of Reovirus type 3 (Reo‐3) in the porta hepatis of a patient with extrahepatic biliary atresia. The study indicates that Reo‐3 antigenic sites are demonstrable by the avidin‐biotinylated complex peroxidase method following formalin fixation and paraffin embedding, but are destroyed by freezing and thawing prior to fixation.

Morphologic Features of the Liver in Abetalipoproteinemia

Mark I. Avigan, Kamal G. Ishak, Richard E. Gregg, Jay H. Hoofnagle – 1 November 1984 – Liver tissue of a newly diagnosed 30‐year‐old patient with abetalipoproteinemia was studied by light and electron microscopy. Despite accumulation of large quantities of lipid droplets in hepatocytes, the lobular architecture remained intact, and there was no fibrosis. Acanthocytes were readily identified in sinusoids by scanning electron microscopy. Profiles of rough endoplasmic reticulum, smooth endoplasmic reticulum and Golgi apparatus appeared normal by transmission electron microscopy.

Basement Membrane Production by Hepatocytes in Chronic Liver Disease

Francesco B. Bianchi, Graziella Biagini, Giorgio Ballardini, Giovanna Cenacchi, Augusto Faccani, Emilio Pisi, Renzo Laschi, Lance Liotta, Spiridione Garbisa – 1 November 1984 – The immunohistologic distribution of fibronectin, laminin, type IV collagen and whole basement membrane was evaluated in liver biopsies from patients with chronic active liver disease. Fibronectin was consistently increased in the areas of piecemeal necrosis, portal tracts and fibrous septa. Laminin was not detected in normal liver parenchyma.

The Hepatotoxicity of Valproic Acid and Its Metabolites in Rats. I. Toxicologic, Biochemical and Histopathologic Studies

James W. Kesterson, G. Richard Granneman, Joseph M. Machinist – 1 November 1984 – Valproic acid (VPA), its unsaturated metabolites and pent‐4‐enoate (4‐PA) were studied for potential hepatotoxicity in rats. 4‐PA, 4‐en‐VPA and 2,4‐dien‐VPA were potent inducers of microvesicular steatosis in young rats. Microvesicular steatosis induced by the 4‐en‐VPA was accompanied by ultrastructural changes characterized by myeloid bodies, lipid vacuoles and mitochondrial abnormalities. Myeloid bodies and lipid vacuoles were seen to a lesser extent in 2,4‐dien‐VPA and 4‐PA‐treated rats.

Dissolution Rate of Cholesterol in Monooctanoin

Joseph B. Bogardus – 1 September 1984 – Monooctanoin is used clinically for dissolution of common bile duct cholesterol gallstones. A number of factors influencing the dissolution rate of cholesterol monohydrate in this solvent were investigated. Water increased cholesterol dissolution rate in a manner inconsistent with previous solubility measurements. Dissolution rate increased approximately 50% in the presence of 10 to 15% water in monooctanoin.

Counter‐Ion Binding by Bile Acid Solutions

Natarajan Rajagopalan, Siegfried Lindenbaum – 1 September 1984 – The binding of Ca2+ to micelles of glycine and taurine bile acid conjugates was studied using a Ca2+−‐specific electrode. An investigation of the effect of buffer concentration, pH, added electrolyte and lecithin was also performed. The results indicate that the binding of Ca2+ to bile salt micelles is dependent on the number of hydroxyl groups on the steroid nucleus and on the nature of the head conjugating group, namely, glycine or taurine.

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