Alcohol consumption enhances fatty acid ω‐oxidation, with a greater increase in male than in female rats

Xiaoli Ma, Enrique Baraona, Charles S. Lieber – 1 November 1993 – Because ethanol inhibits mitochondrial fatty acid oxidation, with substantial accumulation of fatty acids in the livers of female (but not male) rats, and induces microsomal activities, we assessed possible changes in ω‐oxidation. To study this, we pair‐fed 24 male and 24 female littermate rats of the same age liquid diets containing 36% of energy either as ethanol or as additional carbohydrate for 4 wk. In controls, the microsomal ω‐hydroxylation of lauric acid was 28% greater in female than in male rats (p < 0.05).

Human monoclonal antibodies from a patient with primary biliary cirrhosis that recognize two distinct autoepitopes in the E2 component of the pyruvate dehydrogenase complex

Mieko Matsui, Minoru Nakamura, Hiromi Ishibashi, Kichiko Koike, Jiro Kudo, Yoshiyuki Niho – 1 November 1993 – Peripheral B lymphocytes from a patient with primary biliary cirrhosis were infected with Epstein‐Barr virus, and Epstein‐Barr virus–transformed B lymphocytes producing large amounts of IgG antibodies to pyruvate dehydrogenase complex were selected, expanded and fused with the human‐mouse heteromyeloma cell line F3B6.

Increased serum nitrite and nitrate levels in patients with cirrhosis: Relationship to endotoxemia

Carlos Guarner, German Soriano, Albert Tomas, Oriol Bulbena, Maria Teresa Novella, Joaquin Balanzo, Francisco Vilardell, Marisabel Mourelle, Salvador Moncada – 1 November 1993 – Nitric oxide derived from vascular endothelium is a potent vasodilator that plays a key role in the homeostasis of blood pressure. Because cirrhotic patients tend to have low arterial pressure, we measured in 51 patients and 10 control subjects serum nitrite and nitrate levels as an index of in vivo nitric oxide generation.

Analysis of glucocorticoid receptors in human hepatocellular carcinoma and HepG2 cells

Wing‐Yiu Lui, Fang‐Ku P'Eng, Yuh‐Fang Chang, Tai‐Jay Chang, Ting‐Fan Tsai, Mei‐Ling Hsu, Tsung‐Sheng Su, Shyh‐Haw Tsay, Chew‐Wun Wu, Tsung‐Yun Liu, Chin‐Wen Chi – 1 November 1993 – Hepatocellular carcinoma is the leading cause of male cancer death in Taiwan. We have found that the level of glucocorticoid receptor in hepatocellular carcinoma is significantly higher than that in the peritumoral tissue.

Hepatic and extrahepatic HCV RNA strands in chronic hepatitis C: Different patterns of response to interferon treatment

Beatriz Gil, Cheng Qian, Jose I. Riezu‐Boj, Maria P. Civeira, Jesús Prieto – 1 November 1993 – We investigated the presence of positive (genomic) and negative (replicative intermediate) hepatitis C virus RNA strands in liver, peripheral mononuclear cells and serum from patients with chronic hepatitis C using a selective and semiquantitative polymerase chain reaction procedure. Negative and positive hepatitis C virus RNA strands were present in liver, serum and lymphoid cells in all untreated patients and in all those who did not respond to interferon therapy.

Membrane‐associated C‐reactive protein on rat liver macrophages is synthesized within the macrophages, expressed as Neo–C‐reactive protein and bound through a C‐reactive protein‐specific membrane receptor

Christine Egenhofer, Kathrin Alsdorff, Karin Fehsel, Victoria Kolb‐Bachofen – 1 November 1993 – We could recently show that rat liver macrophages (Kupffer cells) express a membrane‐bound form of C‐reactive protein on their surface. Because it is removed by washing the cells in buffers containing Ca++‐chelators, membrane‐bound C‐reactive protein is a peripheral protein rather than an integral part of the Kupffer cell membrane. This Kupffer cell membrane‐bound C‐reactive protein is identical to the galactose‐specific particle receptor previously characterized.

Prevention of posttransfusion hepatitis B and C by screening for antibody to hepatitis C virus and antibody to HBcAg

Hau Tim Chung, Joseph Sai Kit Lee, Anna Suk Fong Lok – 1 November 1993 – Screening of blood donors by testing for antibody to HBcAg and antibody to hepatitis C virus is commonly done. However, the applicability of these screening tests may vary depending on the prevalence of hepatitis B virus and hepatitis C virus infection in various populations.

Steroid receptors and heat‐shock proteins in patients with primary biliary cirrhosis

Arturo D. Jorge, Arturo O. Stati, Laura Vargas Roig, Guillermo Ponce, Oliver A. Jorge, Daniel R. Ciocca – 1 November 1993 – Primary biliary cirrhosis has a definite female preponderance. Increased estrogen levels have been found in patients with this disease; however no studies indicate the status of sex hormone steroid receptors in primary biliary cirrhosis patients.

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