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  • Arteether  (1)
  • Biliary tract, obstruction  (1)
  • Bone marrow culture  (1)
  • 1
    ISSN: 1432-0568
    Keywords: Key words Lateral reticular nuclei ; Paramedian reticular nuclei ; Perihypoglossal nuclei ; Malaria ; Arteether ; Artemisinin ; Neurotoxicity ; Rhesus monkey ; Antimalarial drugs ; Cerebral malaria ; Macaca mulatta ; Plasmodium falciparum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Malaria poses a threat across several continents: Eurasia (Asia and parts of Eastern Europe), Africa, Central and South America. Bradley (1991) estimates human exposure at 2,073,000,000 with infection rates at 270,000,000, illnesses at 110,000,000, and deaths at 1,000,000. Significant mortality rates are attributed to infection by the parasite Plasmodium falciparum, with an estimated 90% among African children. A worldwide effort is ongoing to chemically and pharmacologically characterize a class of artemisinin compounds that might be promising antimalarial drugs. The U.S. Army is studying the efficacy and toxicity of several artemisinin semi-synthetic compounds: arteether, artemether, artelinic acid, and artesunate. The World Health Organization and the U.S. Army selected arteether for drug development and possible use in the emergency therapy of acute, severe malaria. Male Rhesus monkeys (Macaca mulatta) were administered different daily doses of arteether, or the vehicle alone (sesame oil), for a period of either 14 days, or 7 days. Neuropathological lesions were found in 14-day arteether treated monkeys in the precerebellar nuclei of the medulla oblongata, namely: (1) the lateral reticular nuclei (subnuclei magnocellularis, parvicellularis, and subtrigeminalis), (2) the paramedian reticular nuclei (subnuclei accessorius, dorsalis, and ventralis), and the perihypoglossal nuclei (n. intercalatus of Staderini, n. of Roller, and n. prepositus hypoglossi). The data demonstrate that the simian medullary precerebellar nuclei have a high degree of vulnerability when arteether is given for 14 days at dose levels between 8 mg/kg per day and 24 mg/kg per day. The neurological consequences of this treatment regimen could profoundly impair posture, gait, and autonomic regulation, while eye movement disorders might also be anticipated.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 48 (1984), S. 153-159 
    ISSN: 1432-0584
    Keywords: Cyclical neutropenia ; Prednisolone ; Remission ; Bone marrow culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 19-year old girl with severe cyclical neutropenia associated with life-threatening infection and who responded dramatically to the administration of oral prednisolone is described. During reduction and eventual cessation of steroid therapy normal or near normal neutrophil counts have been maintained, and there has been parallel improvement in clinical well-being. Prior to therapy and at a time of peak blood neutrophil count low numbers of granulocyte-macrophage progenitor cells (CFU-C) were found in the patient's bone marrow, and her lymphocytes co-cultured with normal marrow failed to show the inhibitory effect normally seen with normal lymphocytes. The findings in this patient are compared with those in the two other cases where cyclical neutropenia has been shown to respond to steroids.
    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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