A M Petrunkina

Summary

Country: Germany

Publications

  1. doi request reprint Systematic misestimation of cell subpopulations by flow cytometry: a mathematical analysis
    A M Petrunkina
    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
    Theriogenology 73:839-47. 2010
  2. doi request reprint Identifying non-sperm particles during flow cytometric physiological assessment: a simple approach
    A M Petrunkina
    Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
    Theriogenology 73:995-1000. 2010
  3. doi request reprint Fluorescence technologies for evaluating male gamete (dys)function
    A M Petrunkina
    Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke s Hospital, Cambridge, UK
    Reprod Domest Anim 48:11-24. 2013
  4. doi request reprint Human spermatozoa vitrified in the absence of permeable cryoprotectants: birth of two healthy babies
    Vladimir Isachenko
    Department of Obstetrics and Gynaecology, University Women Hospital, Kerpener Str 34, 50931 Cologne, Germany
    Reprod Fertil Dev 24:323-6. 2012
  5. doi request reprint Cytometric solutions in veterinary andrology: Developments, advantages, and limitations
    A M Petrunkina
    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
    Cytometry A 79:338-48. 2011
  6. doi request reprint Mathematical analysis of mis-estimation of cell subsets in flow cytometry: viability staining revisited
    A M Petrunkina
    Unit of Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Germany
    J Immunol Methods 368:71-9. 2011
  7. ncbi request reprint Binding of boar spermatozoa to oviductal epithelium in vitro in relation to sperm morphology and storage time
    D Waberski
    Institute for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, D 30559 Hannover, Germany
    Reproduction 131:311-8. 2006
  8. ncbi request reprint Volume regulatory function and sperm membrane dynamics as parameters for evaluating cryoprotective efficiency of a freezing extender
    A M Petrunkina
    Institute for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Bünteweg 15, D 30559 Hannover, Germany
    Theriogenology 63:1390-406. 2005
  9. ncbi request reprint Signalling pathways involved in the control of sperm cell volume
    A M Petrunkina
    Unit for Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Bünteweg 15, 30559 Hannover, Germany
    Reproduction 133:61-73. 2007
  10. ncbi request reprint Determinants of sperm quality and fertility in domestic species
    A M Petrunkina
    Unit for Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Bünteweg 15, 30559 Hannover, Germany
    Reproduction 134:3-17. 2007

Collaborators

Detail Information

Publications24

  1. doi request reprint Systematic misestimation of cell subpopulations by flow cytometry: a mathematical analysis
    A M Petrunkina
    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
    Theriogenology 73:839-47. 2010
    ..Finally, equations are derived for the correction of the flow cytometric values for use in practical applications...
  2. doi request reprint Identifying non-sperm particles during flow cytometric physiological assessment: a simple approach
    A M Petrunkina
    Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
    Theriogenology 73:995-1000. 2010
    ..As well as being valuable with respect to tests of sperm function, the procedure is also suitable for obtaining accurate sperm counts during routine semen evaluation...
  3. doi request reprint Fluorescence technologies for evaluating male gamete (dys)function
    A M Petrunkina
    Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke s Hospital, Cambridge, UK
    Reprod Domest Anim 48:11-24. 2013
    ....
  4. doi request reprint Human spermatozoa vitrified in the absence of permeable cryoprotectants: birth of two healthy babies
    Vladimir Isachenko
    Department of Obstetrics and Gynaecology, University Women Hospital, Kerpener Str 34, 50931 Cologne, Germany
    Reprod Fertil Dev 24:323-6. 2012
    ....
  5. doi request reprint Cytometric solutions in veterinary andrology: Developments, advantages, and limitations
    A M Petrunkina
    Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
    Cytometry A 79:338-48. 2011
    ....
  6. doi request reprint Mathematical analysis of mis-estimation of cell subsets in flow cytometry: viability staining revisited
    A M Petrunkina
    Unit of Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Germany
    J Immunol Methods 368:71-9. 2011
    ..To conclude, identification of dead cells by means of viability stains should be an absolute routine in practical flow cytometry, so as to avoid mis-estimation in sorting or analysis...
  7. ncbi request reprint Binding of boar spermatozoa to oviductal epithelium in vitro in relation to sperm morphology and storage time
    D Waberski
    Institute for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, D 30559 Hannover, Germany
    Reproduction 131:311-8. 2006
    ..This study shows the potential of sperm-oviduct binding as a tool to assess both male fertility and changes in sperm function associated with in vitro ageing...
  8. ncbi request reprint Volume regulatory function and sperm membrane dynamics as parameters for evaluating cryoprotective efficiency of a freezing extender
    A M Petrunkina
    Institute for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Bünteweg 15, D 30559 Hannover, Germany
    Theriogenology 63:1390-406. 2005
    ..The evaluation of the functional state of sperm submitted to secondary stress after freezing-thawing leads to a more subtle characterization of sperm function and helps improve the cryoprotective efficiency of the extender...
  9. ncbi request reprint Signalling pathways involved in the control of sperm cell volume
    A M Petrunkina
    Unit for Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Bünteweg 15, 30559 Hannover, Germany
    Reproduction 133:61-73. 2007
    ..The mechanism of sperm RVD appears to involve (a) alterations in protein phosphorylation/dephosphorylation balance brought about by PKC and PP1 and (b) a cAMP-dependent activating pathway...
  10. ncbi request reprint Determinants of sperm quality and fertility in domestic species
    A M Petrunkina
    Unit for Reproductive Medicine of Clinics, Clinic for Horses, University of Veterinary Medicine Hannover Foundation, Bünteweg 15, 30559 Hannover, Germany
    Reproduction 134:3-17. 2007
    ..However, subfertility is likely to be associated with a suboptimal response (i.e. too high or too low) rather than a minimal response...
  11. ncbi request reprint Enhanced binding of sperm with superior volume regulation to oviductal epithelium
    A A Y Khalil
    Institute for Reproductive Biology, School of Veterinary Medicine, Hannover Foundation, Hannover, Germany
    J Androl 27:754-65. 2006
    ..Volumetric parameters therefore could be used as tools in semen evaluation programs...
  12. doi request reprint Response to capacitating stimuli indicates extender-related differences in boar sperm function
    S Schmid
    Unit for Reproductive Medicine, Clinic for Pigs and Small Ruminants, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
    J Anim Sci 91:5018-25. 2013
    ..In conclusion, assessment of specific reactivity to capacitating stimuli appears to be a sensitive tool for detection of extender-dependent alterations in functionality of chilled boar spermatozoa. ..
  13. ncbi request reprint Regulatory and necrotic volume increase in boar spermatozoa
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine Hannover, Foundation, Hannover, Germany
    J Cell Physiol 204:508-21. 2005
    ..The ability to regulate volume after exposure to hypertonic conditions is important for sperm functionality and can have practical applications in spermatological diagnostics and cryopreservation...
  14. ncbi request reprint Heterogeneous osmotic behaviour in boar sperm populations and its relevance for detection of changes in plasma membrane
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine, Hannover, Germany
    Reprod Fertil Dev 12:297-305. 2000
    ....
  15. ncbi request reprint Importance of sperm-binding assays for fertility prognosis of porcine spermatozoa
    D Waberski
    Institute for Reproductive Medicine, University of Veterinary Medicine Hannover, Buenteweg 15, D 30559 Hannover, Germany
    Theriogenology 63:470-84. 2005
    ....
  16. ncbi request reprint Regulation of capacitation of canine spermatozoa during co-culture with heterologous oviductal epithelial cells
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine Hannover, Hannover, Germany
    Reprod Domest Anim 38:455-63. 2003
    ..It can be concluded that tyrosine phosphorylation of head membrane proteins and capacitation are delayed in canine spermatozoa being in closed contact with oviductal epithelium...
  17. ncbi request reprint Role of volume-stimulated osmolyte and anion channels in volume regulation by mammalian sperm
    A M Petrunkina
    Institute of Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Bünteweg 15, 30559 Hannover, Germany
    Mol Hum Reprod 10:815-23. 2004
    ..Our observations provide direct evidence that a chloride channel (possibly ClC-3) is involved in the process of volume regulation in mammalian sperm...
  18. ncbi request reprint Role of potassium channels, the sodium-potassium pump and the cytoskeleton in the control of dog sperm volume
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany
    Theriogenology 61:35-54. 2004
    ..Under isotonic conditions at 25 degrees C, a considerable proportion of the sperm population is already swollen; this swelling varies between individual males and appears to be due to lowered cytoskeletal and potassium channel activity...
  19. doi request reprint Can external quality control improve pig AI efficiency?
    D Waberski
    University of Veterinary Medicine Hannover, Bünteweg 15, D 30559 Hannover, Germany
    Theriogenology 70:1346-51. 2008
    ....
  20. doi request reprint Cryobiological determinants of frozen semen quality, with special reference to stallion
    H Sieme
    Clinic for Horses, Reproductive Unit of Clinics, University of Veterinary Medicine, Hannover, Germany
    Anim Reprod Sci 107:276-92. 2008
    ..Such studies should focus especially on the processes involved in sperm volume regulation, sperm-oviduct interaction, capacitation and cellular signalling, and on the alterations in these processes caused by cryopreservation...
  21. doi request reprint The specific response to capacitating stimuli is a sensitive indicator of chilling injury in hypothermically stored boar spermatozoa
    S Schmid
    Unit for Reproductive Medicine of Clinics, Clinic for Pigs and Small Ruminants, University of Veterinary Medicine Hannover, D 30559 Hannover, Germany
    Andrology 1:376-86. 2013
    ....
  22. ncbi request reprint Sperm-cell volumetric measurements as parameters in bull semen function evaluation: correlation with nonreturn rate
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine Hannover, Hannover, Germany
    Andrologia 33:360-7. 2001
    ..Therefore, using electronic volume measurement as a component for fast, correct and valid (up to 50,000 cells), recording sperm-cell population may help to evaluate ejaculate quality more precisely...
  23. doi request reprint Assessment of storage effects in liquid preserved boar semen
    D Waberski
    Unit for Reproductive Medicine of Clinics, University of Veterinary Medicine Hannover, Hannover, Germany
    Reprod Domest Anim 46:45-8. 2011
    ..In the present brief review, recent strategies for quality assessment of liquid preserved boar semen are discussed and basic implications for experiments designed to detect storage effects are given...
  24. ncbi request reprint Seeking mathematical strategies in sperm function analysis: between scylla and charybdis?
    A M Petrunkina
    Institute for Reproductive Medicine, School of Veterinary Medicine Hannover, Hannover, Germany
    Reprod Domest Anim 38:125-33. 2003
    ....