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  • 1
    ISSN: 1432-0428
    Keywords: Insulin receptor ; obesity ; adipocyte ; subcutaneous fat ; omental fat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The insulin binding properties and the molecular weights of the insulin receptor and its insulin binding subunit were studied in omental and subcutaneous adipocytes prepared from obese- and normal-weight subjects. Insulin binding by such adipocytes was decreased in obesity when the binding activity was expressed per unit of cell surface area. No significant difference from the lean controls was evident, however, when binding was calculated on a per cell basis, indicating that the total receptor content of the cells from the obese subjects was not altered. In addition, the normal difference in the receptor binding affinities previously reported between omental and subcutaneous cells from lean individuals was unaffected by the obese condition. Studies of the molecular weight of the non-reduced insulin receptor in fat cell membranes prepared from pieces of omental and subcutaneous fat demonstrated a major receptor species of 390–425K Mr. In contrast, adipocytes isolated by collagenase treatment of the fat had heterogenous non-reduced receptor species of Mr 355K, 285K and small amounts of 427K and 182K. Although different non-reduced receptor species were evident depending on the adipocyte receptor preparation (e.g. isolated adipocytes or fat cell membranes), no differences were found between obese and lean controls or between subcutaneous and omental receptors when the appropriate comparisons were made. Upon sulphydryl reduction, all receptor preparations had a major binding subunit of 125K Mr. In conclusion, obesity is characterized by a dilution of the insulin receptor over the adipocyte cell surface in the absence of a change in total cellular content of receptors. The difference in insulin binding affinities between omental and subcutaneous adipocytes could not be explained by an alteration in receptor molecular weight.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 22 (1982), S. 553-558 
    ISSN: 1432-1041
    Keywords: glucuronidation ; morphine ; UDP-glucuronyltransferase ; adult liver ; fetal liver ; enzyme heterogeneity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The glucuronyltransferase activity towards morphine was measured in microsomes isolated from liver specimens obtained from human fetuses and cancer patients. All the fetal livers investigated had measurable UDP-glucuronyltransferase activity towards morphine. There was no correlation between the gestational age (15 to 27 weeks) and the glucuronidation rate. The mean value of the enzymatic activities was higher in fetal livers obtained by hysterotomy (0.20 nmoles×min−1×mg−1) than in livers obtained after induced abortion (0.11 nmoles×min−1×mg−1). The average rate of glucuronidation in microsomes from adult liver (mean 1.15 nmoles×mint-1×mg−1) was 6 to 10 times higher than in the fetal liver microsomes. Together with previous investigations on human adult and fetal liver glucuronidation, the present results support the theory of heterogeneity of human UDP-glucuronyltransferase.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1041
    Keywords: antibiotics ; gastric surgery ; drug utilization ; bacterial susceptibility ; septic complications ; nosocomial infection ; hospital treatment ; community treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The relationship between hopsital and catchment area ultilization of antimicrobial agents and the antibiotic sensitivity of bacteria isolated from primary infections has been studied after 750 gastric operations performed between 1972 and 1986 at the Huddinge University Hospital. Over 80% of the antibiotics were used in the catchment area. Penicillins (G and V) overall were the most commonly used drugs and comprised 37% of the total antibiotic consumption in 1977–1986. Narrow-spectrum antibiotics dominated throughout the period under investigation. No change in the bacterial resistance to antimicrobial agents was found over time. Many strains of Klebsiella/Enterobacter and E. coli resistant to ampicillin and tetracyclines were recovered throughout the period under investigation. No aerobic Gram-negative bacteria were resistant to gentamicin. All Bacteroides strains except two were sensitive to cefoxitin. Tetracyclines and ampicillin/amoxycillin were mainly used in the catchment area, and cefoxitin and aminoglycosides were almost exclusively used in the hospital. Antimicrobial agents primarily used for out-patients in the catchment area seemed to have more influence on the susceptibility of microorganisms isolated from postoperative infections than agents primarily used in the hospital.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Regulatory Peptides 1 (1980), S. S114 
    ISSN: 0167-0115
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Subkutane Weichteilknoten ; Differentialdiagnose ; Alveolar soft part sarcoma ; Therapie ; Key words Subcutaneous mass ; Differential diagnosis ; Alveolar soft part sarcoma ; Treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Background: A slow growing indolent subcutaneous mass can be caused by a variety of benign and malignant soft tissue proliferations, however, it is often the first sign of soft tissue sarcomas. Radiological findings are unspecific and biopsy with histopathological analysis is needed. Method: Three female patients (age 9, 191/12 and 232/12 years) are presented with a slow growing subcutaneous mass, which was shown to be a malignant non-embryonal soft tissue sarcoma (alveolar soft part sarcoma). Results: Alveolar soft part sarcoma (ASPS) is a very rare malignancy. At diagnosis, 2 patients already had metastatic disease. One girl died before therapy, the other one suffers from slowly progressive pulmonary metastases 41/2 years after diagnosis, despite multi-modal treatment approaches. The third patient received polychemotherapy and local irradiation after complete tumor resection and is free of disease 8 months after diagnosis. Conclusion: ASPS is a rare slow growing malignancy with an extraordinary tendency to metastasize. The prognosis depends on wether the tumor is operable and whether there are metastases.
    Notes: Zusammenfassung Fragestellung: Langsam wachsende nicht schmerzhafte subkutane Knoten können durch unterschiedlichste gut- oder bösartige mesenchymale Proliferationen verursacht sein. Da sich hinter diesem Zeichen oft ein Malignom verbirgt und bildgebende Analysen nur selten den Weg zur Diagnose weisen, ist eine bioptische Klärung dringend erforderlich. Methode: Wir berichten über 3 Patientinnen (Alter 9, 191/12 und 231/6 Jahre) bei denen sich hinter einem langsam wachsenden subkutanen Knoten ein nicht embryonales Sarkom (Alveolar soft part sarcoma) verbarg. Ergebnisse: Das Alveolar soft part sarcoma (ASPS) ist ein ausgesprochenes seltenes Malignom. Zum Diagnosezeitpunkt lag bei 2 Patientinnen bereits eine Metastasierung vor. Eine Patientin verstarb noch vor Behandlungsbeginn. Bei der 2. sind Lungenmetastasen trotz multimodaler Therapie 41/2 Jahre nach Diagnosestellung langsam progredient. Die 3. Patientin erhielt nach Resektion eines lokalisierten ASPS am Oberarm postoperativ eine Polychemo- und lokale Strahlentherapie und ist 8 Monate nach der Diagnosestellung ohne Krankheitszeichen. Schlußfolgerung: Das ASPS ist ein langsam wachsender Tumor mit ausgeprägter Metastasierungstendenz. Die Prognose ist im wesentlichen von der Operabilität des Primärtumors und dem Vorliegen von Metastasen abhängig.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Dyspnoe ; Chronischer Husten ; Kindesalter ; Pleuropulmonales Blastom ; Kombinierte Therapie ; Key words Dyspnea ; Chronic cough ; Childhood ; Pleuropulmonary blastoma ; Combined therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Background: Chronic cough and thoracic pain, commonly caused by upper airway infections, are frequently seen symptoms in pediatrics. These “benign” symptoms are very seldom caused by malignant disorders. Methods: In two patients (male, age 41/12 and 43/12 years) chronic cough and thoracic pain were due to a malignant pulmonary neoplasm (Pleuropulmonary blastoma). Results: Pleuropulmonary blastoma is a rare malignant primary pulmonary neoplasm in childhood with a poor prognosis. An incomplete resection was performed in both cases. Both patients received postoperative radiotherapy and combination chemotherapy. One boy died, the other one is alive and well more than 6 years after diagnosis without evidence of disease. Conclusion: Our findings indicate that even after incomplete resection subsequent multimodal therapy (adjuvant chemotherapy and radiotherapy) can provide a long term remission.
    Notes: Zusammenfassung Fragestellung: Dyspnoe, chronischer Husten und Brustschmerzen sind häufige Symptome in der pädiatrischen Praxis und werden meist durch banale Infekte der Atemwege verursacht. Nur sehr selten verbirgt sich hinter diesen „gutartigen“ Symptomen eine bösartige Erkrankung. Methode: Wir berichten über 2 Knaben (Alter 4 1/12 und 4 3/12 Jahre) bei denen chronischer Husten und Thoraxschmerzen durch einen bösartigen Lungentumor (pleuropulmonales Blastom) verursacht worden waren. Ergebnisse: Das pleuropulmonale Blastom (PPB) ist ein ausgesprochen seltener, primär intrathorakaler Tumor des Kindesalters mit schlechter Prognose. Bei keinem der beiden Patienten gelang chirurgisch eine vollständige Tumorentfernung. Beide Kinder erhielten postoperativ eine kombinierte Chemo- und Radiotherapie. Ein Knabe verstarb, der 2. Patient ist mehr als 6 Jahre nach der Diagnose ohne Krankheitszeichen. Schlußfolgerungen: Diese Erfahrung zeigt, daß auch nach unvollständiger chirurgischer Tumorentfernung bei konsequenter Anwendung eines multimodalen Therapiekonzepts eine länger anhaltende Remission möglich ist.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical microbiology & infectious diseases 3 (1984), S. 475-477 
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To evaluate the effects of parenteral imipenem/cilastatin therapy upon human faecal microflora, stool specimens obtained from ten patients before, during and after therapy were cultured quantitatively for aerobic and anaerobic microorganisms. The patients received 500 mg imipenem combined with 500 mg cilastatin every 6 h for 6–11 days. The antimicrobial therapy was associated with a small decrease in the numbers of enterobacteria, anaerobic cocci and bacteroides during treatment but afterward the microflora normalized in all patients. None of the patients was colonized with new imipenem-resistant bacteria, hadClostridium difficile or cytotoxin in the stools, or developed diarrhoea.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical microbiology & infectious diseases 6 (1987), S. 298-300 
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ten healthy volunteers received 400 mg enoxacin orally twice daily for seven days. Fecal specimens were collected at 0, 2, 4, 7, 9, 11, 16 and 21 days to study the effect of enoxacin on the normal colonic microflora. On the seventh day the fecal mean concentration of enoxacin was 348 mg/kg feces. Whereas enterobacteria were strongly suppressed during the administration of enoxacin, the gram-positive and anaerobic microflora was not significantly altered. Two weeks after enoxacin was discontinued, the colonic microflora had returned to normal.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical microbiology & infectious diseases 4 (1985), S. 49-51 
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The microbial colonization of the oropharynx, the esophagus and the stomach were studied in 60 patients. Patients with gastritis, carcinoma and a history of gastric resection harboured more microorganisms in their stomachs than patients with gastric or duodenal ulcers. Patients with gastric carcinoma were colonized with the highest numbers of different microorganisms.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ampicillin and sulbactam were administered intravenously in 2 g and 1 g doses respectively every 8 h for two days to ten patients undergoing colorectal surgery. Drug concentrations were determined in serum, intestinal mucosa and faeces. The first dose was given at induction of anesthesia. The serum half-life was 2.1 h for ampicillin and 2.0 h for sulbactam on the first day. The concentrations in intestinal mucosa were in most cases 50 % or more of the serum concentrations and there was no statistical difference between the two drugs. Faecal concentrations of both drugs were found in eight patients: a mean of 10.5μ/g for ampicillin and a mean of 7.5μ/g for sulbactam. Faecal samples were also collected during the investigation period for culture of aerobic and anaerobic bacteria. Among the aerobic bacteria enterococci, streptococci and enterobacteria decreased markedly during the prophylaxis period. Anaerobic bacteria were also suppressed significantly during the same period. The changes in colonic microflora were related to the concentrations of ampicillin and sulbactam in the intestinal mucosa and faeces. Overgrowth of yeasts was observed in six patients and overgrowth ofPseudomonas fluorescens in two others. These strains were resistant to the combination ampicillin and sulbactam. The microflora normalized in all patients after two weeks. No postoperative infections occurred.
    Type of Medium: Electronic Resource
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