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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 78 (2001), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Cl−-ATPase in the CNS is a candidate for an outwardly directed neuronal Cl− transporter requiring phosphatidylinositol-4-phosphate (PI4P) for its optimal activity. To test its pathophysiological changes in a phosphatidylinositol (PI) metabolism disorder, the effects of neurotoxic factors in Alzheimer's disease (AD), amyloid β proteins (Aβs), on the Cl−-ATPase activity were examined using primary cultured rat hippocampal neurons. Amyloid β proteins (1–40, 1–42 and 25–35) concentration-dependently (1–100 nm) and time-dependently (from 1 h to 6 day) decreased Cl−-ATPase activity and elevated intracellular Cl− concentrations ([Cl−]i), Aβ25–35 being the most potent. Addition of inositol or 8-Br-cyclic GMP completely reversed these Aβ-induced changes. The recoveries in enzyme activity were attenuated by an inhibitor of PI 4-kinase, 10 µm wortmannin or 20 µm quercetin, but not by a PI 3-kinase inhibitor, 50 nm wortmannin or 10 µm LY294002. The PI, PIP and PIP2 levels of the plasma membrane-rich fraction were lower in the Aβ-treated cells as compared with each control. In the Aβ-exposed culture, but not in control, stimulation by 10 µm glutamate for 10 min significantly increased fragmentation of DNA and decreased cell viability. Addition of inositol or 8-Br-cyclic GMP prevented the effect of Aβ-treatment on the neurotoxicity of glutamate. Thus, Aβs reduce neuronal Cl−-ATPase activity, resulting in an increase in [Cl−]i probably by lowering PI4P levels, and this may reflect a pre-apoptotic condition in early pathophysiological profiles of AD.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 152 (2005), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background  Birt–Hogg–Dubé syndrome (BHD) is a rare autosomal dominant genodermatosis characterized by skin tumours, including multiple fibrofolliculomas, trichodiscomas and acrochordons. BHD patients also may suffer from associated renal and colonic carcinomas. The defective gene in BHD has been recently identified and is suspected of being a tumour suppressor gene. Several mutations of the BHD gene have been reported only in Caucasian patients.Objectives  This study reports the first Asian family that has been demonstrated to carry a BHD mutation.Patients/methods  The proband was a 26-year-old Japanese man with multiple asymptomatic, soft skin-coloured papules on his face, neck and trunk, which were clinically thought to be acrochordon. His father was also affected. Histopathologically, the papules revealed a fibrofolliculoma that had a circumscribed proliferation of fibroblasts and collagen fibres surrounding an abnormal hair follicle.Results  Mutational analysis of the BHD gene of the proband and the father detected 1733insC, a cytosine insertion mutation in an eight-cytosine tract (nucleotides 1733–1740) in exon 11. Analysis of fibrofolliculoma in the proband showed heterozygous 1733insC mutation, suggesting the absence of loss of heterozygosity. Interestingly, previous mutational analysis in Caucasian patients revealed that both1733insC and 1733delC mutations were hot spots.Conclusions  This study is the first to find the same hot-spot 1733insC mutation in Asian kindred. The mutations in this polycytosine tract may have a wide, global distribution despite their arising from a different ethnic background.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 8 (1978), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In view of carcinoembryonic properties with respect to γ-GTP, we investigated whether or not hepatoma specific γ-GTP isoenzyme was found in the sera of patients with hepatoma. Fractionations of serum γ-GTP were carried out in sera from 229 patients with various hepatobiliary diseases including 68 with hepatoma by polyacrylamide gradient gel electrophoresis. The band II which was seen in the region near to ceruloplasmin could be detected in 25 out of the 68 patients with hepatoma (37%), but not in the patients with other diseases. In addition to the II band, an extra band (II) was found in 15 of these 25 patients. The band II and II′ could not be found in any groups of patients studied except hepatoma patients. It was presumed that band II and II′ could be specific for hepatoma.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 8 (1978), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Patients with germ cell tumors, hepatomas and other malignant tumors were studied throughout their courses of surgical, radiological and medical treatments with serial determinations of AFP, CEA, HCG and basic fetoprotein (BFP), which was newly found by M. Ishii.In general, these carcinoembryonic or trophoblastic markers were observed to be well correlated with the fate of the tumor in the body and to be useful in evaluating the effect of treatment or in predicting the prognosis of the patient. Except for a postoperative transient increase in serum BFP and CEA, the levels fell after surgery and rose again with recurrence of the tumor. Although we had some patients with teratocarcinoma, hepatoma or gastric carcinoma, whose serum AFP showed a transient parallelism with their clinical courses, an obvious dissociation in these markers occurred later in their course. Similar dissociations were also observed with these carcinofetal or trophoblastic markers in patients with chemotherapy or radiotherapy for their teratocarcinomas.We conclude that each carcinoembryonic protein is a useful but limited marker for malignancy but should be used clinically in combination with other tumor markers.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 8 (1978), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Novel γ-glutamyl transpeptidase (γ-GTP) was purified from ascites or sera obtained from hepatoma patients by means of following procedures including ammonium sulfate fractionation, separation by 2 cycles of preparative polyacrylamide disc electrophoresis and elimination by a technique of immuno-absorption using affinity chromatography. The purified γ-GTP was shown to be homogeneous as judged by disc electrophoresis. Some physicochemical properties of the partially purified enzyme obtained at the stage of 2 cycles of preparative disc electrophoresis such as heat stability, pH optimum. Km value for substrate and effect of some cations are reported.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 8 (1978), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A new antigen, basic fetoprotein (BFP) found by M. Ishii in human fetus and in some cancer tissue of adult, was quantitated in patients' sera by radioimmunoassay. In 167 of 377 patients (44.3%) with malignant diseases, serum BFP exceeded 100 ng/ml and 87 cases (23.0%) were over 200 ng/ml. In contrast, 49 of 230 (21.3%) with benign diseases exceeded 100 ng/ml and 11 cases (4.8%) were over 200 ng/ml. No normal control exceeded 100 ng/ml.A higher incidence and higher serum-concentration of BFP were observed in patients with carcinoma of the liver, bile duct, esophagus and kidney, but it was also found in various other malignancies including leukemias and sarcomas. Generally, after a successful operation, BFP fell to normal levels, and with tumor recurrence, BFP levels rose higher particularly with massive metastasis. In the benign group, BFP was higher in patients with acute and chronic active hepatitis.Although BFP has less organ specificity than other fetal substances, and it appears in some benign diseases too, BFP is a new member of the carcinofetal protein family, which may be a useful marker in cancer pathophysiology.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 16 (1989), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 〈list xml:id="l1" style="custom"〉1To clarify whether acute changes in the properties of baroreflexes can occur in man, we evaluated the time course of baroreflex control of heart rate and cardiopulmonary baroreflex control of forearm vascular resistance (FVR) over 240 min after intravenous administration of propranolol (0.2 mg/kg) in 13 healthy young men.2Systolic and diastolic blood pressure remained unchanged after propranolol. Propranolol significantly decreased cardiac index and heart rate, and significantly increased total peripheral resistance. These effects remained unchanged for 240 min after propranolol.3Baroreflex control of heart rate was significantly augmented immediately after, and at 30, 60 min after propranolol, but partly reverted to the initial level afterwards. Cardiopulmonary baroreflex control of FVR was reduced immediately after, and at 30, 60 min after propranolol, but partly reverted to the initial level afterwards. Pressor responses to phenylephrine was reduced immediately after propranolol, but no significant differences were observed after 30 min.4These results suggest that acute changes in the properties of baroreflexes occur in man after propranolol.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0264-410X
    Keywords: E. coli enterotoxin B subunit ; Influenza vaccine ; adjuvant
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Archives of Gerontology and Geriatrics 19 (1994), S. 105-121 
    ISSN: 0167-4943
    Keywords: Etiology ; Mitochondria ; Oxidative stress ; Parkinson's disease
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0040-4020
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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