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  1. Article ; Online: MICROPAPILLAE IN SEA URCHIN EGGS.

    Afzelius, B A

    Development, growth & differentiation

    2023  Volume 18, Issue 3, Page(s) 195–198

    Abstract: Sea urchin eggs fixed in a glutaraldehyde-calcium chloride mixture have "micropapillae" with a dense content. If these structures are real, they are likely to be sites where a fusion with the spermatozoon can take place. It is possible however that they ... ...

    Abstract Sea urchin eggs fixed in a glutaraldehyde-calcium chloride mixture have "micropapillae" with a dense content. If these structures are real, they are likely to be sites where a fusion with the spermatozoon can take place. It is possible however that they represent some kind of preparation artefact without a structural counterpart in the living state.
    Language English
    Publishing date 2023-06-06
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 280433-5
    ISSN 1440-169X ; 0012-1592
    ISSN (online) 1440-169X
    ISSN 0012-1592
    DOI 10.1111/j.1440-169X.1976.00195.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: THE OCCURRENCE AND STRUCTURE OF MICROBODIES : A Comparative Study.

    Afzelius, B A

    The Journal of cell biology

    2009  Volume 26, Issue 3, Page(s) 835–843

    Abstract: Livers from chickens, rats, mongrel dogs, Dalmatian dogs, and man have been examined in the electron microscope in order to compare the microbodies with the known content of uricase. It is concluded that microbodies with inclusion are present in rats, ... ...

    Abstract Livers from chickens, rats, mongrel dogs, Dalmatian dogs, and man have been examined in the electron microscope in order to compare the microbodies with the known content of uricase. It is concluded that microbodies with inclusion are present in rats, mongrel dogs, and, although the inclusion generally is smaller, in Dalmatian dogs. The inclusion has a characteristic structural appearance. These species (rat, dog) have uricase. Chickens and man lack both the enzyme uricase and the microbody inclusion. This evidence and that from previously published electron micrographs in the literature on microbodies support the notion of a positive correlation between uricase and microbodies with an inclusion. It is recommended that the term "uricosome" be used for such microbodies that have an inclusion of the appearance here described.
    Language English
    Publishing date 2009-10-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218154-x
    ISSN 1540-8140 ; 0021-9525
    ISSN (online) 1540-8140
    ISSN 0021-9525
    DOI 10.1083/jcb.26.3.835
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  3. Article: THE NUCLEUS OF NOCTILUCA SCINTILLANS: Aspects of Nucleocytoplasmic Exchanges and the Formation of Nuclear Membrane.

    Afzelius, B A

    The Journal of cell biology

    2009  Volume 19, Issue 1, Page(s) 229–238

    Abstract: The unicellular organism, Noctiluca, has been examined with the electron microscope. The nucleus is small compared to the very large size of the cell, but the nuclear border has an organization which indicates an active nucleocytoplasmic exchange. ... ...

    Abstract The unicellular organism, Noctiluca, has been examined with the electron microscope. The nucleus is small compared to the very large size of the cell, but the nuclear border has an organization which indicates an active nucleocytoplasmic exchange. Whereas annuli are missing over most parts of the nuclear membrane proper, there are "annulated vesicles" in a layer inside the nuclear membrane. The hypothesis is put forth that nuclear substances move through the annuli into these vesicles, and that the annulated vesicles themselves are transported through the nuclear membrane. The various forms of the annulated vesicles are consistent with this hypothesis. An implication of this postulate is the synthesis of annulated membranes inside a closed nucleus which are physically separate from the endoplasmic reticulum. The chromosomes are in a state resembling prophase chromosomes and are surrounded by granular masses. Only a small portion of the entire nuclear volume is occupied by the chromosomes. There are many nucleolus-like bodies.
    Language English
    Publishing date 2009-10-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218154-x
    ISSN 1540-8140 ; 0021-9525
    ISSN (online) 1540-8140
    ISSN 0021-9525
    DOI 10.1083/jcb.19.1.229
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  4. Article: On the numbering of peripheral doublets in cilia and flagella.

    Afzelius, B A

    Tissue & cell

    2008  Volume 20, Issue 3, Page(s) 473–475

    Abstract: The nine microtubular doublets of cilia and flagella have distinctive features that make it possible to assign an index number to each of them. Such an indexing has been used for a long time for animal cilia and flagella, whereas other indexing systems ... ...

    Abstract The nine microtubular doublets of cilia and flagella have distinctive features that make it possible to assign an index number to each of them. Such an indexing has been used for a long time for animal cilia and flagella, whereas other indexing systems have been proposed recently for plant cilia. It is shown here that the similarity between cilia from animals and cilia from plants and protists is so great that the same indexing system can be used for all cilia regardless of their derivation.
    Language English
    Publishing date 2008-07-08
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 204424-9
    ISSN 1532-3072 ; 0040-8166
    ISSN (online) 1532-3072
    ISSN 0040-8166
    DOI 10.1016/0040-8166(88)90078-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: An untapped potential for imaging of peripheral osteomyelitis in paediatrics using [

    Afzelius, P / Nielsen, O L / Schønheyder, H C / Alstrup, A K O / Hansen, S B

    EJNMMI research

    2019  Volume 9, Issue 1, Page(s) 29

    Abstract: Purpose: To examine parameters affecting the detection of osteomyelitis (OM) by [: Background: [: Methods: Twenty juvenile pigs were inoculated with S. aureus. One week after inoculation, the pigs were [: Results: All lesions were detected by [! ...

    Abstract Purpose: To examine parameters affecting the detection of osteomyelitis (OM) by [
    Background: [
    Methods: Twenty juvenile pigs were inoculated with S. aureus. One week after inoculation, the pigs were [
    Results: All lesions were detected by [
    Conclusions: [
    Language English
    Publishing date 2019-03-22
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2619892-7
    ISSN 2191-219X
    ISSN 2191-219X
    DOI 10.1186/s13550-019-0498-5
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  6. Article: Cilia-related diseases.

    Afzelius, B A

    The Journal of pathology

    2004  Volume 204, Issue 4, Page(s) 470–477

    Abstract: ... organs ('a 50% risk of situs inversus'). Some genes are responsible for the synthesis, transport, and ...

    Abstract There are at least eight categories of cilia in the human body and malfunctioning of any one or several of them will have different consequences for the patient. A genetic error of the respiratory cilia (9 + 2) is the cause of the airways disease named immotile-cilia syndrome (or PCD), whereas defective ependymal cilia (9 + 2) carries an increased risk of hydrocephalus. When the so-called nodal cilia (9 + 0) of the early embryo are malfunctioning, there is a random determination of asymmetry of the heart and visceral organs ('a 50% risk of situs inversus'). Some genes are responsible for the synthesis, transport, and assembly of the cilia, and mutations in these genes may lead to progressive degeneration of ciliary structures, such as the connecting cilium (9 + 0) of the photoreceptor cells-this is the cause of retinitis pigmentosa. Ciliary malfunctions due to genetic errors tend to be systemic and life-long, whereas acquired diseases are local and may be temporary only.
    MeSH term(s) Cilia/genetics ; Cilia/pathology ; Cilia/physiology ; Ciliary Motility Disorders/genetics ; Ciliary Motility Disorders/physiopathology ; Cytoskeleton/genetics ; Cytoskeleton/physiology ; Female ; Humans ; Hydrocephalus/genetics ; Hydrocephalus/physiopathology ; Infertility, Female/genetics ; Infertility, Female/physiopathology ; Infertility, Male/genetics ; Infertility, Male/physiopathology ; Male ; Olfaction Disorders/genetics ; Olfaction Disorders/physiopathology ; Respiratory Tract Infections/etiology ; Respiratory Tract Infections/physiopathology ; Retinitis Pigmentosa/genetics ; Retinitis Pigmentosa/physiopathology ; Situs Inversus/genetics ; Situs Inversus/physiopathology
    Keywords covid19
    Language English
    Publishing date 2004-10-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 3119-7
    ISSN 1096-9896 ; 0022-3417
    ISSN (online) 1096-9896
    ISSN 0022-3417
    DOI 10.1002/path.1652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Neutrophil migration and orientation under agarose: findings in patients with the immotile cilia syndrome and effects of cytochalasin B and vinblastine.

    Palmblad, J / Udén, A M / Venizelos, N / Afzelius, B

    Advances in experimental medicine and biology

    1982  Volume 141, Page(s) 49–59

    Abstract: ... with the immotile cilia syndrome mainly move in a chemokinetic manner, whereas cytochalasin B hampers locomotive ability ...

    Abstract This study has shown that the agarose technique is well suited for determination of whether impaired PMN migration is due to defective direction finding of deficient locomotive ability. By assessments of the degree of orientation of neutrophils together with measures of migration distances, we demonstrated that vinblastine treated normal neutrophils and PMNs from patients with the immotile cilia syndrome mainly move in a chemokinetic manner, whereas cytochalasin B hampers locomotive ability, but leaves direction finding intact. Hence, information whether chemotaxis or chemokinesis predominates is easily obtained in one single assay system.
    MeSH term(s) Cell Movement/drug effects ; Chemotaxis, Leukocyte/drug effects ; Cilia/physiology ; Culture Media ; Cytochalasin B/pharmacology ; Dyneins/physiology ; Humans ; Microtubules/physiology ; Neutrophils/physiology ; Sepharose ; Vinblastine/pharmacology
    Chemical Substances Culture Media ; Cytochalasin B (3CHI920QS7) ; Vinblastine (5V9KLZ54CY) ; Sepharose (9012-36-6) ; Dyneins (EC 3.6.4.2)
    Language English
    Publishing date 1982
    Publishing country United States
    Document type Journal Article
    ISSN 2214-8019 ; 0065-2598
    ISSN (online) 2214-8019
    ISSN 0065-2598
    DOI 10.1007/978-1-4684-8088-7_6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Electron microscopy on the basophilic structures of the sea urchin egg.

    AFZELIUS, B A

    Zeitschrift fur Zellforschung und mikroskopische Anatomie (Vienna, Austria : 1948)

    2002  Volume 45, Issue 6, Page(s) 660–675

    MeSH term(s) Animals ; Basophils ; Electrons ; Microscopy ; Microscopy, Electron ; Ovum ; Sea Urchins
    Language English
    Publishing date 2002-04-24
    Publishing country Austria
    Document type Journal Article
    ZDB-ID 6015-x
    ISSN 0340-0336 ; 0044-3794 ; 0373-031X
    ISSN 0340-0336 ; 0044-3794 ; 0373-031X
    DOI 10.1007/bf00338710
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  9. Article: The fine structure of the sea urchin spermatozoa as revealed by the electron microscope.

    AFZELIUS, B A

    Zeitschrift fur Zellforschung und mikroskopische Anatomie (Vienna, Austria : 1948)

    2002  Volume 42, Issue 1-2, Page(s) 134–148

    MeSH term(s) Animals ; Echinodermata ; Electrons ; Male ; Microscopy ; Microscopy, Electron ; Sea Urchins ; Spermatozoa
    Language English
    Publishing date 2002-04-24
    Publishing country Austria
    Document type Journal Article
    ZDB-ID 6015-x
    ISSN 0340-0336 ; 0044-3794 ; 0373-031X
    ISSN 0340-0336 ; 0044-3794 ; 0373-031X
    DOI 10.1007/bf00335087
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  10. Book: Biomedical electron microscopy

    Maunsbach, Arvid B. / Afzelius, Björn Arvid

    illustrated methods and interpretations

    1999  

    Author's details Arvid B. Maunsbach ; Björn A. Afzelius
    Keywords Elektronenmikroskopie ; Medizin ; Atlas
    Subject Weltatlas ; Bildatlas ; Topographischer Atlas ; Topografischer Atlas ; Atlanten ; Humanmedizin ; Heilkunst ; Medicine
    Language English
    Size XV, 548 S. : zahlr. Ill., 29cm
    Publisher Acad. Press
    Publishing place San Diego u.a.
    Publishing country United States
    Document type Book
    Note Includes bibliographies and index
    HBZ-ID HT016983912
    ISBN 0-12-480610-4 ; 978-0-12-480610-8
    Database Catalogue ZB MED Medicine, Health

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    Shelf markLoan statusLocation
    1998 A 8652 order for loan Magazin

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