H Bollwein

Summary

Affiliation: University of Veterinary Medicine
Country: Germany

Publications

  1. ncbi request reprint The effect of acetylsalicylic acid and captopril on uterine and ovarian blood flow during the estrous cycle in mares
    Heinrich Bollwein
    Department of Animal Reproduction, Veterinary College, University of Munich, Königinstr 12, 80539 Munich, Germany
    Theriogenology 61:301-9. 2004
  2. ncbi request reprint Transrectal Doppler sonography of uterine and umbilical blood flow during pregnancy in mares
    Heinrich Bollwein
    Department of Animal Reproduction, Veterinary College, University of Munich, Königinstr 12, 80539 Munich, Germany
    Theriogenology 61:499-509. 2004
  3. doi request reprint Cyclic changes in endometrial echotexture of cows using a computer-assisted program for the analysis of first- and second-order grey level statistics of B-Mode ultrasound images
    Sandra Schmauder
    Clinic for Ruminants, Faculty of Veterinary Medicine, University of Munich, Germany
    Anim Reprod Sci 106:153-61. 2008
  4. ncbi request reprint Testicular blood flow and plasma concentrations of testosterone and total estrogen in the stallion after the administration of human chorionic gonadotropin
    Heinrich Bollwein
    Clinics for Cattle, University of Veterinary Medicine, Hanover, Germany
    J Reprod Dev 54:335-9. 2008
  5. ncbi request reprint Interrelationship between plasma membrane integrity, mitochondrial membrane potential and DNA fragmentation in cryopreserved bovine spermatozoa
    H Bollwein
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
    Reprod Domest Anim 43:189-95. 2008
  6. ncbi request reprint [The incidence of agglutination and its influence on sperm quality and fertility of boar semen]
    Heinrich Bollwein
    Klinik für Rinder der Tierärztlichen Hochschule Hannover
    Berl Munch Tierarztl Wochenschr 117:327-33. 2004
  7. doi request reprint Low plasma progesterone concentrations are accompanied by reduced luteal blood flow and increased size of the dominant follicle in dairy cows
    J Lüttgenau
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 76:12-22. 2011
  8. doi request reprint Effects of a protracted induction of parturition on the incidence of retained placenta and assessment of uterine artery blood flow as a measure of placental maturation in cattle
    D Hartmann
    Clinic for Cattle, University of Verterinary Medicine, Hanover, Germany
    Theriogenology 80:176-84. 2013
  9. doi request reprint Escherichia coli lipopolysaccharide administration transiently suppresses luteal structure and function in diestrous cows
    K Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, D30173 Hannover, Germany
    Reproduction 144:467-76. 2012
  10. doi request reprint Protracted induction of parturition enhances placental maturation, but does not influence incidence of placental retention in cows
    D Hartmann
    Clinic for Cattle, University of Veterinary Medicine, Hanover, Germany
    Theriogenology 80:185-92. 2013

Collaborators

Detail Information

Publications46

  1. ncbi request reprint The effect of acetylsalicylic acid and captopril on uterine and ovarian blood flow during the estrous cycle in mares
    Heinrich Bollwein
    Department of Animal Reproduction, Veterinary College, University of Munich, Königinstr 12, 80539 Munich, Germany
    Theriogenology 61:301-9. 2004
    ..0001) plasma progesterone concentrations (18 and 17%, respectively). In conclusion, either ASA or captopril improved uterine and ovarian perfusion; however the effects on fertility were not determined...
  2. ncbi request reprint Transrectal Doppler sonography of uterine and umbilical blood flow during pregnancy in mares
    Heinrich Bollwein
    Department of Animal Reproduction, Veterinary College, University of Munich, Königinstr 12, 80539 Munich, Germany
    Theriogenology 61:499-509. 2004
    ..763-0.071x+0.001x2. Further studies are needed to determine whether transrectal color Doppler sonography could be used to identify mares at risk of abortion...
  3. doi request reprint Cyclic changes in endometrial echotexture of cows using a computer-assisted program for the analysis of first- and second-order grey level statistics of B-Mode ultrasound images
    Sandra Schmauder
    Clinic for Ruminants, Faculty of Veterinary Medicine, University of Munich, Germany
    Anim Reprod Sci 106:153-61. 2008
    ..05) plasma oestrogen levels were correlated with HOM, but not with MGL (P<0.05). The results of this study show that changes in endometrial morphology of cows can be measured using a computer-assisted texture analysis program...
  4. ncbi request reprint Testicular blood flow and plasma concentrations of testosterone and total estrogen in the stallion after the administration of human chorionic gonadotropin
    Heinrich Bollwein
    Clinics for Cattle, University of Veterinary Medicine, Hanover, Germany
    J Reprod Dev 54:335-9. 2008
    ..05). The results of this study indicated that the testicular blood flow volume of the stallion may be regulated by estrogens, but additional studies are necessary to investigate whether there is a causal relationship...
  5. ncbi request reprint Interrelationship between plasma membrane integrity, mitochondrial membrane potential and DNA fragmentation in cryopreserved bovine spermatozoa
    H Bollwein
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
    Reprod Domest Anim 43:189-95. 2008
    ..58; p < 0.05). In conclusion, plasma membranes and mitochondria are similarly affected by the freezing and thawing process, but not during the incubation period after thawing...
  6. ncbi request reprint [The incidence of agglutination and its influence on sperm quality and fertility of boar semen]
    Heinrich Bollwein
    Klinik für Rinder der Tierärztlichen Hochschule Hannover
    Berl Munch Tierarztl Wochenschr 117:327-33. 2004
    ..Agglutinations have a negative effect on motility of sperm and disappear to a large extent after dilution in sperm extender. They have no negative consequences on fertility...
  7. doi request reprint Low plasma progesterone concentrations are accompanied by reduced luteal blood flow and increased size of the dominant follicle in dairy cows
    J Lüttgenau
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 76:12-22. 2011
    ..In summary, low P(4) during diestrus was associated with smaller LS, reduced LBF, and larger FS in the treatment cycle, but not in the subsequent cycle...
  8. doi request reprint Effects of a protracted induction of parturition on the incidence of retained placenta and assessment of uterine artery blood flow as a measure of placental maturation in cattle
    D Hartmann
    Clinic for Cattle, University of Verterinary Medicine, Hanover, Germany
    Theriogenology 80:176-84. 2013
    ..Nevertheless, disturbances in the placental maturation process in cows with retained fetal membranes after parturition can be detected before parturition by a higher uterine blood flow resistance in the uterine arteries...
  9. doi request reprint Escherichia coli lipopolysaccharide administration transiently suppresses luteal structure and function in diestrous cows
    K Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, D30173 Hannover, Germany
    Reproduction 144:467-76. 2012
    ..In conclusion, LPS treatment of diestrus cows transiently suppressed both the structure and function of the CL...
  10. doi request reprint Protracted induction of parturition enhances placental maturation, but does not influence incidence of placental retention in cows
    D Hartmann
    Clinic for Cattle, University of Veterinary Medicine, Hanover, Germany
    Theriogenology 80:185-92. 2013
    ..The expression of vasoactive substances does not seem to be related to the placental separation process...
  11. ncbi request reprint Osmotic tolerance and intracellular ion concentrations of bovine sperm are affected by cryopreservation
    A K Blässe
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 78:1312-20. 2012
    ..In conclusion, cryopreserved sperm exhibit reduced tolerance to hypotonic stress, a decreased intracellular pH, and increased intracellular potassium level...
  12. doi request reprint Effects of a shortened preovulatory follicular phase on genital blood flow and endometrial hormone receptor concentrations in Holstein-Friesian cows
    H Bollwein
    Clinic for Cattle, School of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 73:242-9. 2010
    ..05) between Groups G40 and G60 on Days -1 and 7. Results of this study indicate that a shortened preovulatory follicle phase primarily affects ovarian but not the measured uterine events in cows undergoing synchronization of ovulation...
  13. doi request reprint Plasma progesterone concentrations in the mid-luteal phase are dependent on luteal size, but independent of luteal blood flow and gene expression in lactating dairy cows
    J Lüttgenau
    Clinic for Cattle, University of Veterinary Medicine Hannover Foundation, Bischofsholer Damm 15, D 30173 Hannover, Germany
    Anim Reprod Sci 125:20-9. 2011
    ..Results indicate that plasma P(4) concentrations in the mid-luteal phase were dependent on luteal size, but independent of blood flow and gene expression per luteal tissue unit...
  14. doi request reprint Luteal blood flow increases during the first three weeks of pregnancy in lactating dairy cows
    K Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, D30173 Hannover, Germany
    Theriogenology 75:549-54. 2011
    ..Although mean luteal blood flow was significantly greater in pregnant than nonpregnant (and nonbred) cows on Days 15 and 18, due to substantial variation among cows, it was not an appropriate diagnostic tool for pregnancy status...
  15. doi request reprint Combined use of Ovsynch and progesterone supplementation after artificial insemination in dairy cattle
    A Forro
    Clinic for Cattle, University of Veterinary Medicine, 30173 Hannover, Germany
    J Dairy Sci 95:4372-81. 2012
    ..Progesterone supplementation after insemination improved the P/AI of the Ovsynch protocols, but this effect was more apparent in cows with BCS ≥3.25...
  16. doi request reprint Luteal blood flow is a more appropriate indicator for luteal function during the bovine estrous cycle than luteal size
    K Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 73:691-7. 2010
    ..It is concluded that LBF reflected luteal function better than LS specifically during luteal regression...
  17. ncbi request reprint Effect of postpartum suppression of ovulation on uterine involution in dairy cows
    M Heppelmann
    Clinic for Cattle, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
    Theriogenology 80:519-25. 2013
    ..05). The results showed that suppression of an early ovulation by transvaginal FP improved uterine involution in cows with and without uterine disease...
  18. doi request reprint Relationships between ovarian blood flow and ovarian response to eCG-treatment of dairy cows
    A Honnens
    Clinic for Cattle, School of Veterinary Medicine Hannover, Bischofsholer Damm 15, Hannover 30173, Germany
    Anim Reprod Sci 113:1-10. 2009
    ..Thus BFV and PI measured in the ovarian arteries have limited diagnostic value to predict the outcome of a gonadotropin treatment...
  19. doi request reprint Uterine blood flow during the first 3 weeks of pregnancy in dairy cows
    A Honnens
    Clinic for Cattle, School of Veterinary Medicine Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
    Theriogenology 70:1048-56. 2008
    ..05). The results show that in pregnant cows changes in uterine blood supply can be detected already in the second week after insemination; these changes do not occur in the second week of the cycle...
  20. doi request reprint Short communication: Prepartum plasma insulin-like growth factor-I concentrations based on day of insemination are lower in cows developing postpartum diseases
    M Piechotta
    Clinic for Cattle, University of Veterinary Medicine, Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
    J Dairy Sci 95:1367-70. 2012
    ....
  21. ncbi request reprint Effects of human chorionic gonadotropin on luteal blood flow and progesterone secretion in cows and in vitro-microdialyzed corpora lutea
    N Beindorff
    Clinic for Cattle, School of Veterinary Medicine Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
    Theriogenology 72:528-34. 2009
    ..Interestingly, different P(4) secretion patterns could be found between central and peripheral parts of the corpus luteum in both control and hCG perfused corpora lutea...
  22. doi request reprint Hepatic mRNA expression of acid labile subunit and deiodinase 1 differs between cows selected for high versus low concentrations of insulin-like growth factor 1 in late pregnancy
    M Piechotta
    University of Veterinary Medicine, Clinic for Cattle, Bischofsholer Damm 15, 30173 Hannover, Germany
    J Dairy Sci 96:3737-49. 2013
    ..Finally, other endocrine end points (e.g., insulin and thyroid hormones) differed between the 2 groups...
  23. doi request reprint Liposomes for cryopreservation of bovine sperm
    T Röpke
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 76:1465-72. 2011
    ..Interestingly, the lipid phase state of the liposomes during preincubation is not the decisive factor for their cryoprotective action...
  24. doi request reprint Application of computed tomography for the evaluation of obstetrically relevant measurements in German Holstein-Friesian calves
    M Becker
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 75:1052-6. 2011
    ....
  25. doi request reprint The effect of puerperal uterine disease on uterine involution in cows assessed by Doppler sonography of the uterine arteries
    M Heppelmann
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D 30173 Hannover, Germany Electronic address
    Anim Reprod Sci 143:1-7. 2013
    ..05). The results of this study show that uterine blood flow measures by trans-rectal Doppler sonography are affected by puerperal uterine disease. ..
  26. doi request reprint Seminal plasma and seminal plasma proteins added to bulk sorted sperm do not alter the mRNA expression of in vitro produced bovine embryos
    H Stinshoff
    Clinic for Cattle, University of Veterinary Medicine, Hanover, Germany
    Theriogenology 78:132-9. 2012
    ..Additionally, sorting and subsequent exposure of sperm to either seminal plasma or seminal plasma proteins did not influence mRNA expression in bovine IVP embryos...
  27. doi request reprint Extraction forces in bovine obstetrics: an in vitro study investigating alternate and simultaneous traction modes
    M Becker
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 73:1044-50. 2010
    ..Based on these findings, alternate-limb traction, 10 cm at a time, should be used until both elbows have entered the pelvis. Simultaneous traction should then be applied to both forelimbs to complete extraction of the chest...
  28. doi request reprint Variability of mammary blood flow in lactating Holstein-Friesian cows during the first twelve weeks of lactation
    A Götze
    Clinic for Cattle, University of Veterinary Medicine, 30173 Hannover, Germany
    J Dairy Sci 93:38-44. 2010
    ..24<r<0.35). In conclusion, Doppler sonography is a reliable method for determining blood flow in the pudendoepigastric trunk of cows. There is great variability in mammary blood flow among cows and in BFV...
  29. ncbi request reprint Genital blood flow and endometrial gene expression during the preovulatory period after Prostaglandin F(2alpha)-induced luteolysis in different luteal phases in cows
    Anne Jordan
    Clinic for Cattle, University of Veterinary Medicine Hannover
    J Reprod Dev 55:309-15. 2009
    ..There were no effects on endometrial gene expression...
  30. ncbi request reprint Examination of cyclic changes in bovine luteal echotexture using computer-assisted statistical pattern recognition techniques
    Kathrin Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Germany
    Anim Reprod Sci 106:289-97. 2008
    ..The results of this study show that statistical pattern recognition techniques provide new information about the luteal glands, thus facilitating a more accurate differentiation between different cycle stages in cows...
  31. ncbi request reprint [Sonographic evaluation of the uterus in Holstein-Friesian cows without and with disturbances of the puerperium during the first 14 days postpartum]
    Georgios Tsousis
    Klinik für Rinder, Stiftung Tierarztliche Hochschule Hannover
    Berl Munch Tierarztl Wochenschr 121:78-85. 2008
    ..0% and 87.5%. The results show that B-mode sonography is an additional valuable method for a more accurate differentiation of uterine involutionary processes between cows without and with disturbances of the puerperal phase...
  32. ncbi request reprint [Variability in plasma membrane integrity, mitochondrial membrane potential and acrosomal status before and after cryopreservation of bull sperm]
    Cordula Köss
    Klinik für Rinder, Stiftung Tierarztliche Hochschule Hannover
    Berl Munch Tierarztl Wochenschr 121:73-7. 2008
    ....
  33. doi request reprint Transrectal Doppler sonography of uterine blood flow during the first 12 weeks after parturition in healthy dairy cows
    Lars Krueger
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, 30173 Hannover, Germany
    Anim Reprod Sci 114:23-31. 2009
    ..While uterine blood flow changes were only demonstrated during the first 4 weeks of the puerperium, the pulsatility index was also suitable to investigate alterations in uterine perfusion during the next 8 weeks after parturition...
  34. doi request reprint 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
    A K Sander
    Clinic for Cattle, University of Veterinary Medicine, Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
    J Dairy Sci 94:1762-71. 2011
    ..Increased plasma IGF-I concentrations were not associated with enhanced phagocytosis function of bovine blood PMNL ex vivo and, thus, can not be regarded as a suitable predictor for this function...
  35. doi request reprint Standardization of computer-assisted semen analysis using an e-learning application
    J Ehlers
    E learning Consulting, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 76:448-54. 2011
    ..In conclusion, e-learning presents an effective, efficient, and accepted tool for improvement of the precision of CASA measurements. This study provides a model for the standardization of other laboratory procedures using e-learning...
  36. 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...
  37. doi request reprint Chromatin-unstable boar spermatozoa have little chance of reaching oocytes in vivo
    Florencia Ardón
    Unit for Reproductive Medicine of Clinics for Pigs and Small Ruminants, University of Veterinary Medicine Hannover, Bünteweg 15, D 30559 Hannover, Germany
    Reproduction 135:461-70. 2008
    ..We conclude that in vivo the likelihood that sperm with unstable chromatin will reach the egg and fertilize it is low...
  38. ncbi request reprint Doppler sonography of the uterine arteries during a superovulatory regime in cattle. Uterine blood flow in superovulated cattle
    A Honnens
    Clinic for Cattle, School of Veterinary Medicine Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany
    Theriogenology 70:859-67. 2008
    ..However, transrectal color Doppler sonography of the uterine arteries does not facilitate the prediction of embryo yields following superovulatory treatment...
  39. ncbi request reprint Application of Doppler ultrasonography in cattle reproduction
    K Herzog
    Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
    Reprod Domest Anim 42:51-8. 2007
    ..The influence of the genital blood flow on fertility in cows needs to be examined further in future studies...
  40. ncbi request reprint Vascular changes in the corpus luteum during early pregnancy in the cow
    Nicola Beindorff
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hanover, Germany
    J Reprod Dev 56:263-70. 2010
    ..Also, luteal rescue by early pregnancy may be not associated with further blood vessel formation but rather may be related to the decrease of blood vessels per unit of area and blood vessel stabilization in the bovine CL...
  41. doi request reprint Application of computed tomography for the evaluation of obstetrically relevant pelvic parameters in German Holstein-Friesian cows
    G Tsousis
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    Theriogenology 73:309-15. 2010
    ..80, P<0.0001). The results of this study show that external pelvimetry yields reliable information about the size of the pelvis when the age of the cow is considered...
  42. ncbi request reprint Colour Doppler sonography of cystic ovarian follicles in cows
    Alexandra Rauch
    Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
    J Reprod Dev 54:447-53. 2008
    ..However, exact prediction of COFs destined to regress or persist and the response of COFs to treatment with a GnRH analogue were not possible using colour Doppler sonography...
  43. ncbi request reprint Quantification of temporary and permanent subpopulations of bull sperm by an optimized SYBR-14/propidium iodide assay
    Werner Grundler
    Flow Cytometry Group, GSF, National Research Center for Environment and Health, Neuherberg, Germany
    Cytometry A 60:63-72. 2004
    ....
  44. ncbi request reprint Transrectal Doppler sonography of uterine blood flow during early pregnancy in mares
    Heinrich Bollwein
    Department of Animal Reproduction, College of Veterinary Medicine, University of Munich, Munich 80539, Germany
    Theriogenology 60:597-605. 2003
    ..05). The results show that uterine blood supply increases in mares during the second week of pregnancy compared to cyclic mares. Furthermore there are individual variations in blood flow between mares...
  45. ncbi request reprint The effect of exogenous estradiol benzoate and altrenogest on uterine and ovarian blood flow during the estrous cycle in mares
    Heinrich Bollwein
    Department of Animal Reproduction, Veterinary College, University of Munich, Königinstr 12, 80539 Munich, Germany
    Theriogenology 61:1137-46. 2004
    ..Compared to untreated cycles, mean ovarian PI values were elevated (P < 0.05) only in the estrus following altrenogest administration. In conclusion, exogenous estrogen and progestin both decreased genital perfusion in cycling mares...
  46. ncbi request reprint The effect of semen extender, seminal plasma and raw semen on uterine and ovarian blood flow in mares
    Heinrich Bollwein
    Gynäkologische und Ambulatorische Tierklinik der Universität München, Königinstr 12, 80539 Munchen, Germany
    Theriogenology 60:607-16. 2003
    ....