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Factors affecting sperm yield during swim-up


, : Factors affecting sperm yield during swim-up. Journal Of Assisted Reproduction & Genetics. 10(2): 145-150

Purpose: The migration of sperm (expressed as the percentage of the total motile cells in the ejaculate aliquot) from seminal plasma into overlying medium (swim-up) was increased with time, temperature, and increasing the surface area of contact between the two phases by increasing the single of tube inclination. Results: The proportion of sperm migrating into the medium was relatively constant with varying sperm count. Stimulation of the progressive motility of spermatozoa in vitro using a motility enhancing drug (2-deoxyadenosine) increased sperm migration initially but no more than the maximum reached by controls after extended incubation. Conclusion: Sperm yield from normozoospermic men and men with borderline asthenoteratozoospermia represented approximately 40 and 15% of the total motile cells in the ejaculate aliquots, respectively. In general, in both groups spermatozoa in the swim-up fraction exhibited superior motility, vitality, and morphology compared to the original ejaculates. Tail abnormalities were reduced more than head abnormalities and subjects with borderline sperm qualities exhibited less dramatic improvements in quality than the normozoospermic individuals.

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Accession: 008672125

DOI: 10.1007/bf01207738

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Zhao Xiao Kun; Qu Xiao Bing; Wang Yin Huai, 2000: Influence on immune function of mice by instillating BCG-PSN intravesically. Hunan Yike Daxue Xuebao 25(5): 507-508, Oct 28

Mead Warren Judson, 1944: Review of API Research Proj. 43C; Studies of the effect of radioactivity on the transformation of marine organic materials into petroleum hydrocarbons. Pages 126-140 1944

Scupin Hans, 1935: Die stratigraphischen Beziehungen der mittel- und nordsudetischen Kreide. Correlates the Cretaceous of the central and northern Sudetes.

Stelzer, M., 2005: Decreasing potato production in East Germany in 2005. Potato cultivation in the whole of Germany decreased by 6%, while that in East Germany decreased by 9% to just over 50 000 ha. Production data since 1999 and producer prices in 2003/04 and 2004/05 are presented. Production and marketing prospects...

Simoneaux, Bruce J.; Hackett, Dennis S.; Bray, Leslie D.; Thalaker, Fred, 1998: Magnitude and nature of -triazine residues in foodstuffs as predicted from radiolabeled studies on selected animals and plants. Ballantine, L G [Editor], McFarland, J E [Editor], Hackett, D S [Editor] ACS Symposium Series; Triazine herbicides: Risk assessment 104-114

Mann D.L.; Hamlin Greene G.; Banks K.; Goedert J.J., 1992: Antibody class and subclass response to hiv 1 infection. Journal of Cellular Biochemistry Supplement (16 PART E): 66

Tao Jing; Chen ShiGang; Li QingMei; Wang XianCheng; Li XiaoFeng; Li ShuJiu, 2007: Evaluation of ecological-adaptability for Elaeagnus commutate under salt and alkali stress. The cold resistance of silverberry (Elaeagnus commutate), a superior shrubs species introduced from Canada, was determined, and a pot experiment was conducted under salt-alkali stress. The cold resistance and saline-alkali tolerance of E. commutat...

Failey, Robert B., 1958: Effect in man of large doses of pyridoxine on serum cholesterol. Pyridoxine (400 mg/day) was given to 21 individuals for periods up to a maximum of 36 days. A slight but significant fall in serum cholesterol levels was seen, the effect being more marked in diabetic than non-diabetic subjects.

Breuer R., 1988: The taxonomic division of the family Porocharaceae, Charophyta. Palaeontologische Zeitschrift 62(1-2): 3-10

Anonymous, 1949: Sixty-second Annual Report of the College of Agriculture at Cornell University and of the Cornell University Agricultural Experiment Station 1949. Wheat Hybrids from Honour wheat and Rosen rye, after back-crossing with both parents, are being selected for disease resistance and other characters. Selection for resistance to common bunt, dwarf bunt and leaf and stem rusts continues. A new smut...