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  • 2000-2004
  • 1990-1994  (4)
  • 1920-1924
  • 1994  (4)
  • 1
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Summer mortality (’die-off‘) is common in striped bass, Morone saxatilis (Walbaum), in the San Francisco Bay-Delta region. Tissue and blood samples of moribund and healthy striped bass collected during the summers of 1986–1988 were analysed. Sixteen moribund and 25 healthy reference fish from the Carquinez Strait area and eight fish caught in the Pacific Ocean were studied. Moribund fish plasma was invariably yellow-orange; most of the moribund fish had discoloured livers with haemorrhagic regions, and approximately one-third had haemorrhagic intestines. Piasma levels of aspartale aminotransferase, uric acid, alkaline phosphatase and cortisol were significantly higher than in reference fish from Carquinez Strait and the Pacific Ocean, whereas cholesterol, sodium, chloride, triiodothyronine and glucose levels were significantly lower. Hepatic heavy metal concentrations and bacterial content were similar in moribund and reference fish. Gill Na.+, K+ -ATPase activity was significantly lower in moribund fish. Liver, kidney, intestine, and thyroid follicles of moribund fish displayed various histopathological changes, and corticosteroidogenic (interrenal) tissue could not be identified positively in moribund fish. These findings are discussed in relation to recent work on the chemical burdens (industrial and agricultural hydrocarbons) found in livers from some of the fish examined in this study.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0509
    Keywords: Biliary tract, obstruction ; Gallstone, diagnosis ; ERCP, interventional techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Therapeutic applications of endoscopic retrograde cholangiopancreatography (ERCP) have increased dramatically, and endoscopic sphincterotomy (ES) is the cornerstone of these techniques. Indications include treatment of retained biliary duct stones, papillary stenosis, benign and malignant strictures, and acute cholangitis and pancreatitis. We reviewed our recent experience to assess the spectrum of procedures done and their results. Medical records and radiographic examinations in 60 consecutive patients undergoing therapeutic ERCP were studied. Patients were placed into one of three treatment groups; Group 1, ES alone (N=21); Group 2, ES plus stone retrieval (N=15); and Group 3, ES plus stent placement (N=24). In Group 1, all of eight patients with ductal stones had spontaneous passage. In 11 patients with papillary stenosis, nine had relief of symptoms following ES. Two patients with pancreatitis improved after ES. In Group 2, all 15 patients with ductal stones had successful retrieval. In Group 3, patients were treated for biliary stricture alone (4), retained stones (7), pancreatitis (5), neoplasms (6) and papillary stenosis (2). In these 24 patient, 21 (88%) were treated successfully or had palliation of their symptoms. In our series, a wide variety of therapeutic applications of ERCP was used to manage simple and complex biliary disease. ES alone or in combination with other techniques was done in all patients. Overall, 55 (92%) of 60 interventional procedures were successful as defined by removal of stones and relief or palliation of symptoms.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Amino acids 6 (1994), S. 283-293 
    ISSN: 1438-2199
    Keywords: Amino acids ; Chronic renal failure ; Plasma ; Urine ; D-amino acids ; CAPD ; D-Tyrosine ; D-Phenylalanine ; Haemodialysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Total D-amino acids were measured in plasma for 20 non-dialysed patients (creatinine clearance 〈 12 ml/minute), 20 on CAPD, 20 on haemodialysis and 20 normals. Plasma D-tyrosine and D-phenylalanine were measured in 8 of each group by HPLC. Total D-amino acids, D-tyrosine and D-phenylalanine were significantly greater for patients than normals. D-amino acids and D-tyrosine correlated with creatinine and were decreased during HD. During dialysis, the mean losses for D-tyrosine and D-phenylalanine were similar, about 0.2 mg/CAPD exchange and 3 mg/4 hour haemodialysis (i.e. 2% of the total amino acid, as in plasma). Clearance was unaffected by stereochemical configuration. Urinary losses/24 hour in the non-dialysed patients were 0.35 mg D-tyrosine and 0.25 mg D-phenylalanine. Clearance for D-phenylalanine was greater than for the L-enantiomer. Increases in D-amino acids in renal failure are probably due to depletion of D-amino acid oxidase, but may be enhanced by a D-amino acid rich diet, peptide antibiotics and D-amino acid oxidase inhibiting drugs and metabolites. Possible toxic effects need further investigation.
    Type of Medium: Electronic Resource
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