Results 291 to 300 of about 59,120 (328)
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Antibodies to Mitotic Spindle Apparatus: Clinical Significance of NuMA and HsEg5 Autoantibodies
Journal of Clinical Immunology, 2008The clinical associations of NuMA and HsEg5 antibodies, the main anti-mitotic spindle apparatus autoantibodies, remain unclear due to their extremely low prevalence.We have analysed the clinical data of 40 anti-NuMA- (0.87 per thousand) and 7 anti-HsEg5- (0.15 per thousand) positive patients detected during routine immunofluorescence examination of 45 ...
Lourdes Mozo +2 more
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UV microbeam irradiations of the mitotic spindle I. The UV-microbeam apparatus [PDF]
Protoplasma, 1989 We describe the assembly of a UV microbeam microscope based on a Zeiss IM35 inverted microscope. The important UV transmitting elements are standard UV epifluorescence attachments available from Zeiss; the main modification involves fitting an adjustable slit in place of the field diaphragm.
Judith A. Snyder +3 more
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Evaluation of the meiotic spindle apparatus in oocytes undergoing intracytoplasmic sperm injection
Fertility and Sterility, 1995To determine whether intracytoplasmic sperm injection has an adverse effect on the meiotic spindle of oocytes after injection of a sperm into the ooplasm.Hamster oocytes were injected with human sperm (Test group) and evaluated for meiotic spindle and chromosome morphology using immunofluorescent staining.
Stavroula G. Baka +3 more
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Evaluation of the spindle apparatus of in-vitro matured human oocytes following cryopreservation
Human Reproduction, 1995The present study was conducted to determine if the cryopreservation of immature human oocytes has a deleterious effect on the meiotic spindle following maturation in vitro. Oocytes were obtained in excess from in-vitro fertilization patients and divided into four groups.
Lucinda L. Veeck +5 more
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Biosystems, 1975
Ultrastructural variations of micronuclear mitosis in three species of Paramecium have been reviewed for the purpose of hypothesizing possible evolutionary relationships. P. bursaria is considered to be the most primitive species because it has complex kinetochore-equivalents termed microlamellae which attach to microfilaments. P.
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Ultrastructural variations of micronuclear mitosis in three species of Paramecium have been reviewed for the purpose of hypothesizing possible evolutionary relationships. P. bursaria is considered to be the most primitive species because it has complex kinetochore-equivalents termed microlamellae which attach to microfilaments. P.
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Protoplasma, 1974
Microtubules (MTs) are the most prominent structural elements of the spindle apparatus. Consequently they are generally thought to a play a role in the processes of spindle elongation and the autonomous chromosome movements towards the spindle poles in anaphase.
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Microtubules (MTs) are the most prominent structural elements of the spindle apparatus. Consequently they are generally thought to a play a role in the processes of spindle elongation and the autonomous chromosome movements towards the spindle poles in anaphase.
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Modelling the mitotic apparatus
Acta Biotheoretica, 1995This bibliographical review of the modelling of the mitotic apparatus covers a period of one hundred and twenty years, from the discovery of the bipolar mitotic spindle up to the present day. Without attempting to be fully comprehensive, it will describe the evolution of the main ideas that have left their mark on a century of experimental and ...
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Chromosome elimination in Heteropeza pygmaea
Chromosoma, 1974The ultrastructure of early cleavage divisions of the paedogenetic gall midge Heteropeza pygmaea (syn. Oligarces paradoxus) was analysed at different division stages determined by previous in vivo observation. The spindles are enclosed by a continuous layer of vesicles. Centrioles are absent.
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Plant Systematics and Evolution, 1982
The spindle apparatus ofCoprinus micaceus begins to develop from the diglobular polar body outside the nucleus. During both meiotic divisions it operates inside the nuclear envelope and consists of two amorphous poles, a central bundle of interpolar microtubules, and chromosomal microtubules. A metaphase plate cannot exist because the interpolar strand
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The spindle apparatus ofCoprinus micaceus begins to develop from the diglobular polar body outside the nucleus. During both meiotic divisions it operates inside the nuclear envelope and consists of two amorphous poles, a central bundle of interpolar microtubules, and chromosomal microtubules. A metaphase plate cannot exist because the interpolar strand
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Spindle positioning and its impact on vertebrate tissue architecture and cell fate
Nature Reviews Molecular Cell Biology, 2021Terry Lechler, Marina Mapelli
exaly