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Pancreatic involvement in chronic viral hepatitis

World Journal of Gastroenterology 2005年第23期11卷 3508-3513页

作者： Yoshiki Katakura Hiroshi Yotsuyanagi Kiyoe Hashizume Chiaki Okuse Noriaki Okuse kohji nishikawa Michihiro Suzuki Shiro Iino Fumio Itoh Division of Gastroenterology and Hepatology

AIM: To elucidate the frequency and characteristics of pancreatic disorders in the course of chronic viral hepatitis. METHODS: We prospectively assessed the serum pancreatic enzyme levels and imaging findings in patients with chronic viral hepatitis and healthy control subjects. RESULTS: Serum amylase (t-Amy), salivary amylase (s-Amy), pancreatic amylase (p-Amy) and serum lipase levels were higher in hepatitis patients in comparison to control subjects. However, in asymptomatic viral carriers, only the serum t-Amy levels were higher than those of the controls. The levels of each enzyme rose with the progression of liver disease in patients with hepatitis B or C; whereas the levels of each enzyme within the same clinical stage of the disease did not differ between patients diagnosed with either hepatitis B or hepatitis C virus. Imaging findings demonstrated chronic pancreatitis in only 1 out of 202 patients (0.5%).CONCLUSION: Our data suggest that serum levels of pancreatic enzymes increase with the progression of liver disease in patients diagnosed with viral hepatitis. Pancreatic disease, asymptomatic in most cases, may represent an extrahepatic manifestation of chronic viral hepatitis.

关键词：慢性病毒肝炎胰腺损伤病理机制临床表现

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The Ability of Edible Mushrooms to Act as Biocatalysts: Preparation of Chiral Alcohols Using Basidiomycete Strains

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Advances in Microbiology 2012年第2期2卷 66-71页

作者： kohji Ishihara Yukiko nishikawa Mari Kaneko Anna Kinoshita Nozomi Kumazawa Daichi Kobashigawa Kohei Kuroda Masashi Osawa Tatsunori Yamamoto Nobuyoshi Nakajima Hiroki Hamada Noriyoshi Masuoka Department of Life Science Okayama University of Science Okayama Japan Graduate School of Health and Welfare Science Okayama Prefectiral University Soja Japan Research Institute of Biotechnology Fujiwara Techno-Art Co. Ltd. Okayama Japan

To examine the potential ability of edible mushrooms to act as biocatalysts, 19 basidiomycete strains were screened. Modified media (PG, O, and PGO medium) for liquid cultivation of these basidiomycete strains were designed and tested. Wet cells (>10 g) of 4 basidiomycete strains (Pleurotus salmoneostramineus H7, P. salmoneostramineus H13, Ganoderma lucidum NBRC31863, Flammulina velutipes NBRC31862) were harvested from PGO medium for 7 days. The stereoselective reduction of α-keto esters using the 4 strains was tested. It was found that each of these strains had a reducing activity toward 6 aliphatic α-keto esters. In the presence of L-alanine as an additive, the reduction of ethyl 2-oxobutanoate and ethyl 2-oxopentanoete by P. salmoneostramineus H7 produced the corresponding alcohol with a high conversion ratio and with excellent enantiomeric excess (>99% e.e. (R)). Furthermore, ethyl pyruvate, ethyl 2-oxobutanoate, and ethyl 2-oxopentanoate were predominantly reduced to the corresponding (R)-hydroxy ester (>99% e.e.) by G. lucidum. Thus, we found that these edible mushrooms have great potential to be used as biocatalysts for the stereoselective reduction of carbonyl compounds.

关键词： Basidiomycete Edible Mushroom Biocatalyst Chiral Alcohol

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