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Heiner Bollwein

Researcher at University of Veterinary Medicine Vienna

Publications -  15
Citations -  582

Heiner Bollwein is an academic researcher from University of Veterinary Medicine Vienna. The author has contributed to research in topics: Sperm & Luteal phase. The author has an hindex of 12, co-authored 15 publications receiving 498 citations. Previous affiliations of Heiner Bollwein include University of Zurich.

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Identifying non-sperm particles during flow cytometric physiological assessment a simple approach

TL;DR: This work has developed a simple and cost-efficient flow cytometric approach for identifying non-sperm particles that can be carried out in parallel with functional assessments and is suitable for obtaining accurate sperm counts during routine semen evaluation.
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Application of Doppler ultrasonography in cattle reproduction.

TL;DR: The results of the studies show that transrectal flow imaging can be used to obtain blood flow velocity waveforms from the uterine arteries at any time during the oestrous cycle, pregnancy and puerperium and provides new information about physiological changes of the genital organs during, all reproductive phases.
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Effects of cryopreservation on sperm viability, synthesis of reactive oxygen species, and DNA damage of bovine sperm

TL;DR: Changes of DNA integrity in frozen sperm seem to be related to synthesis of H2O2 but not to sperm viability and synthesis of other reactive oxygen species.
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Liposomes for cryopreservation of bovine sperm.

TL;DR: Interestingly, the lipid phase state of the liposomes during preincubation is not the decisive factor for their cryoprotective action, which can likely be attributed to increased liposome-sperm interactions between the charged phosphatidylglycerol groups and charged regions in the sperm membranes.
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Ex vivo phagocytic overall performance of neutrophilic granulocytes and the relation to plasma insulin-like growth factor-I concentrations in dairy cows during the transition period.

TL;DR: Insulin-like growth factor (IGF-I) enhanced PMNL functions in vitro and β-hydroxybutyrate and nonesterified fatty acid concentrations were weakly negatively correlated with IGF-I in the transition period, while increased plasma IGF-i concentrations were not associated with enhanced phagocytosis function of bovine blood PMNL ex vivo and can be regarded as a suitable predictor for this function.