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Semen characteristics after overnight shipping: preservation of sperm concentrations, HspA2 ratios, CK activity, cytoplasmic retention, chromatin maturity, DNA integrity, and sperm shape.

Authors
Huszar-G; Celik-Ozenci-C; Cayli-S; Kovacs-T; Vigue-L; Kovanci-E
Source
J Androl 2004 Jul; 25(4):593-604
NIOSHTIC No.
20029117
Abstract
We tested several approaches that can be used to preserve sperm attributes and the objective biochemical markers of sperm maturity and function for assessment in a remote centralized laboratory after overnight shipping of semen samples. Addition of phenyl-methyl-sulfonyl-fluoride (PMSF) to a final concentration of 20 microg/mL semen at 4 degrees C has preserved sperm concentrations and HspA2 isoform ratios, even at room temperature, simulating a shipping delay in moderate ambient temperatures. Regarding the attributes of individual spermatozoa, the patterns of CK-immunocytochemistry (demonstrates cytoplasmic retention in diminished-maturity spermatozoa); aniline blue staining pattern (tests chromatin maturity); sperm shape assessed by both Kruger strict morphology and computer assisted morphometry; and sperm DNA integrity, as tested by DNA nick translation, all remained unchanged. Thus, the PMSF-4 degrees C conditions preserved sperm concentrations and the cytoplasmic and nuclear biomarkers of sperm cellular maturity and function for next-day analysis. This shipping method will facilitate the early detection of subtle changes in semen quality that can affect sperm function, even when there has been no decline in sperm concentrations to signal possible toxic effects. Furthermore, sample preservation will enable investigators to evaluate semen for toxicology studies and for diagnosis of male infertility from remote locations. Home collection of semen should enhance study participation, and semen assessment in centralized laboratories will address concerns regarding interlaboratory variations and quality control.
Keywords
Spermatogenesis; Spermatozoa; Reproduction; Reproductive-effects; Reproductive-system; Reproductive-system-disorders; Cell-biology; Cell-function; Cell-metabolism; Cell-morphology; Cellular-function; Cellular-structures
Contact
Sperm Physiology Laboratory, Division of Reproductive Medicine, Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut
CODEN
JOAND3
Publication Date
20040701
Document Type
Journal Article
Funding Type
Grant
Fiscal Year
2004
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-004061
Issue of Publication
4
ISSN
0196-3635
Source Name
Journal of Andrology
State
CT
Performing Organization
Yale University
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