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  • 1
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    Alloantigen recognition is preceded by nonspecific adhesion of cytotoxic T cells and target cells (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-18
    Description: T-cell receptors bind antigens only when the antigens are exposed on the cell surface. This can be studied best in the interaction of cytolytic T lymphocytes (CTL) with target cells because the recognition and binding event can be separated from the lytic phase. Studies with CTL clones specific for HLA-A2 and HLA-B7 demonstrated that conjugates of CTL's and target cells can be formed in the absence of specific antigen recognition. Furthermore, T-cell receptor and target antigen cannot interact unless there is conjugate formation. This indicates that nonspecific conjugate formation between CTL's and target cells precedes the recognition of specific antigen by the T-cell receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spits, H -- van Schooten, W -- Keizer, H -- van Seventer, G -- van de Rijn, M -- Terhorst, C -- de Vries, J E -- AI-15066/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 Apr 18;232(4748):403-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3485822" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal/immunology ; Cell Adhesion ; Clone Cells ; HLA Antigens/immunology ; HLA-A2 Antigen ; HLA-B7 Antigen ; Humans ; Isoantigens/*immunology ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes, Cytotoxic/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Structure of ras proteins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-07-21
    Description: In the Table of Contents of the 24 March 1989 issue, the title of the report "Histamine is an intracellular messenger mediating platelet aggregation" by S. P. Saxena et al. appearing on page 1596 was incorrectly printed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tong, L -- Milburn, M V -- de Vos, A M -- Kim, S H -- New York, N.Y. -- Science. 1989 Jul 21;245(4915):244.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2665078" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Molecular Structure ; Protein Conformation ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins p21(ras)
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    A novel mRNA of the A4 amyloid precursor gene coding for a possibly secreted protein (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-08-11
    Description: The gene, encoding the A4 peptide found in the amyloid core of senile plaques isolated from the cerebral cortex of patients with Alzheimer's disease, produces at least three precursors that resemble cell surface receptors. A clone isolated from a human brain complementary DNA library contained the structural sequence for an A4 amyloid peptide precursor with a serine protease inhibitor domain in which 208 amino acids at the carboxyl terminal are replaced by 20 amino acids derived from nucleotide sequences with homology to the Alu repeat family. This protein devoid of the transmembrane domain most likely represents a secreted form of the A4 amyloid peptide precursor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Sauvage, F -- Octave, J N -- New York, N.Y. -- Science. 1989 Aug 11;245(4918):651-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Neurochimie, Universite Catholique de Louvain, Bruxelles, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2569763" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*metabolism ; Amino Acid Sequence ; Amyloid/*genetics/secretion ; Amyloid beta-Protein Precursor ; Base Sequence ; Cerebellum/analysis ; Cerebral Cortex/analysis ; DNA Probes ; Gene Amplification ; Humans ; Middle Aged ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Protein Precursors/*genetics/secretion ; RNA, Messenger/*genetics/isolation & purification ; Receptors, Cell Surface ; Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    HTLV-V: a new human retrovirus isolated in a Tac-negative T cell lymphoma/leukemia (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-11
    Description: A new human retrovirus was isolated from a continuous cell line derived from a patient with CD4+ Tac- cutaneous T cell lymphoma/leukemia. This virus is related to but distinct from human T cell leukemia/lymphoma virus types I and II (HTLV-I and HTLV-II) and human immunodeficiency virus (HIV-1). With the use of a fragment of provirus cloned from one patient with T cell leukemia, closely related sequences were found in DNA of the cell line and of tumor cells from seven other patients with the same disease; these sequences were only distantly related to HTLV-I. The phenotype of the cells and the clinical course of the disease were clearly distinguishable from leukemia associated with HTLV-I. All patients and the wife of one patient showed a weak serological cross-reactivity with both HTLV-I and HIV-1 antigens. None of the patients proved to be at any apparent risk for HIV-1 infection. The name proposed for this virus is HTLV-V, and the date indicate that it may be a primary etiological factor in the major group of cutaneous T cell lymphomas/leukemias, including the sporadic lymphomas known as mycoses fungoides.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manzari, V -- Gismondi, A -- Barillari, G -- Morrone, S -- Modesti, A -- Albonici, L -- De Marchis, L -- Fazio, V -- Gradilone, A -- Zani, M -- New York, N.Y. -- Science. 1987 Dec 11;238(4833):1581-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dipartimento di Medicina Sperimentale e Scienze Biochimiche II, Universita di Roma, Tor Vergata, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2825353" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Viral/analysis ; Deltaretrovirus/classification/*isolation & purification/ultrastructure ; Female ; Humans ; Leukemia/*microbiology ; Lymphoma/*microbiology ; Male ; Microscopy, Electron ; T-Lymphocytes/cytology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Chromosome Y-specific DNA is transferred to the short arm of X chromosome in human XX males (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-15
    Description: Y-chromosomal DNA is present in the genomes of most human XX males. In these cases, maleness is probably due to the presence of the Y-encoded testis-determining factor (TDF). By means of in situ hybridization of a probe (pDP105) detecting Y-specific DNA to metaphases from three XX males, it was demonstrated that the Y DNA is located on the tip of the short arm of an X chromosome. This finding supports the hypothesis that XX maleness is frequently the result of transfer of Y DNA, including TDF, to a paternally derived X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andersson, M -- Page, D C -- de la Chapelle, A -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):786-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3738510" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Chromosome Mapping ; DNA/*genetics ; Humans ; Lymphocyte Activation ; Lymphocytes/cytology ; Male ; Metaphase ; Nucleic Acid Hybridization ; *Sex Chromosome Aberrations ; Sex Determination Analysis ; *X Chromosome ; *Y Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Beta amyloid gene duplication in Alzheimer's disease and karyotypically normal Down syndrome (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-03-13
    Description: With the recently cloned complementary DNA probe, lambda Am4 for the chromosome 21 gene encoding brain amyloid polypeptide (beta amyloid protein) of Alzheimer's disease, leukocyte DNA from three patients with sporadic Alzheimer's disease and two patients with karyotypically normal Down syndrome was found to contain three copies of this gene. Because a small region of chromosome 21 containing the ets-2 gene is duplicated in patients with Alzheimer's disease, as well as in karyotypically normal Down syndrome, duplication of a subsection of the critical segment of chromosome 21 that is duplicated in Down syndrome may be the genetic defect in Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Delabar, J M -- Goldgaber, D -- Lamour, Y -- Nicole, A -- Huret, J L -- de Grouchy, J -- Brown, P -- Gajdusek, D C -- Sinet, P M -- New York, N.Y. -- Science. 1987 Mar 13;235(4794):1390-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2950593" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Alzheimer Disease/*genetics ; Amyloid/*genetics ; *Chromosomes, Human, Pair 21 ; DNA/genetics ; Down Syndrome/*genetics ; Humans ; Leukocytes/analysis ; *Multigene Family
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    AIDS risk (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Gruttola, V -- Lagakos, S W -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):399.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3393904" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology ; Humans ; Risk ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Induction of B cell unresponsiveness to noninherited maternal HLA antigens during fetal life (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-30
    Description: Patients who have received many transfusions become highly sensitized and develop antibodies against almost all HLA alloantigens, so that finding a cross-match negative kidney donor is difficult. A survey of those patients showed that 50 percent did not form antibodies against the noninherited maternal HLA antigens. Apart from the obvious clinical implications, the data indicate that a human equivalent of murine neonatal or actively acquired tolerance has now been identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Claas, F H -- Gijbels, Y -- van der Velden-de Munck, J -- van Rood, J J -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1815-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunohaematology, University Hospital, Leiden, the Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3051377" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*immunology ; Female ; Fetus/*immunology ; HLA-A Antigens/*immunology ; HLA-B Antigens/*immunology ; Humans ; *Immune Tolerance ; *Kidney Transplantation ; Maternal-Fetal Exchange ; Pregnancy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Atrial natriuretic factor: a hormone produced by the heart (1985)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1985-11-15
    Description: Systematic studies on the significance of the secretory-like morphological characteristic of cardiac atrial muscle cells of mammals led to the finding that these cells produce a polypeptide hormone. This hormone, described in 1981 as atrial natriuretic factor (ANF), is diuretic (natriuretic), hypotensive, and has an inhibitory effect on renin and aldosterone secretion. Thus, ANF probably intervenes in the short- and long-term control of water and electrolyte balance and of blood pressure. Phylogenetically, ANF appears early, suggesting different functions for this peptide in accordance with each species' environment. Knowledge of the properties of the hormone should provide insights into the pathophysiology of important clinical entities and lead to the development of new pharmaceutical products.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Bold, A J -- New York, N.Y. -- Science. 1985 Nov 15;230(4727):767-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2932797" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amphibians ; Animals ; Atrial Function ; Atrial Natriuretic Factor/genetics/*physiology ; Birds ; Cattle ; Cytoplasmic Granules/ultrastructure ; Fishes ; Heart/*physiology ; Humans ; Microscopy, Electron ; Myocardium/cytology/ultrastructure ; Rats ; Reptiles ; Rodentia ; Sinoatrial Node/cytology/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Detection of DNA sequences in nuclei in suspension by in situ hybridization and dual beam flow cytometry (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-12-20
    Description: This report describes the fluorescence hybridization of DNA sequence probes to interphase nuclei in suspension and the quantification of bound probe by dual beam flow cytometry. Nuclear proteins were first cross-linked with dimethylsuberimidate to prevent disintegration of the nuclei during denaturation and hybridization. To demonstrate that in situ hybridization can be performed in suspension, stabilized mouse thymocyte nuclei were hybridized with a probe for mouse satellite DNA sequences. The DNA probes were labeled with 2-acetylaminofluorene. After hybridization, an indirect immunofluorescent labeling procedure was used to visualize the target sequences. With dual beam flow cytometry, both the amount of hybridized probe and the DNA content of individual nuclei were determined. Thus, the specificity of DNA hybridization can be combined with the speed and quantitative analysis provided by flow cytometry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trask, B -- van den Engh, G -- Landegent, J -- in de Wal, N J -- van der Ploeg, M -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1401-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2416058" target="_blank"〉PubMed〈/a〉
    Keywords: 2-Acetylaminofluorene/pharmacology ; Animals ; Base Sequence ; Bisbenzimidazole ; DNA/*genetics ; DNA, Satellite/genetics ; Dimethyl Suberimidate/pharmacology ; Flow Cytometry/methods ; Humans ; Kinetics ; Mice ; *Nucleic Acid Hybridization ; Thymus Gland/cytology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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