Relationships between bacteriospermia, DNA integrity, nuclear protamine alteration, sperm quality and ICSI outcome

The Aim of this study was to evaluate the effects of bacteriospermia on human sperm parameters, nuclear protamines, DNA integrity and ICSI outcome in patients enrolled for ICSI treatment. 84 unselected couples consulting in infertility and obstetrics clinic and enrolled for ICSI treatment were inclu...

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Published in:Reproductive biology Vol. 18; no. 1; pp. 115 - 121
Main Authors: Zeyad, Ali, Hamad, Mohammed, Amor, Houda, Hammadeh, Mohamad Eid
Format: Journal Article
Language:English
Published: Poland Elsevier B.V 01.03.2018
Subjects:
bacteria
Bacteriospermia
chromatin
DNA
DNA fragmentation
Enterococcus faecalis
Escherichia coli
guidelines
humans
ICSI
patients
protamines
semen
Sperm DNA fragmentation
Sperm quality
Staphylococcus aureus
Streptococcus agalactiae
World Health Organization
Bacteriospermia
Sperm quality
ICSI
Sperm DNA fragmentation
ISSN:1642-431X, 2300-732X, 2300-732X
Online Access:Get full text
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Summary:The Aim of this study was to evaluate the effects of bacteriospermia on human sperm parameters, nuclear protamines, DNA integrity and ICSI outcome in patients enrolled for ICSI treatment. 84 unselected couples consulting in infertility and obstetrics clinic and enrolled for ICSI treatment were included in this study. The semen specimens were screened bacteriologically; semen and sperm parameters were also evaluated according to WHO guidelines. DNA integrity, protamines concentration and protamine deficiency were estimated by TUNEL assay, AU-PAGE and Chromomycin (CMA3) respectively. The results of this study revealed that 34.52% of studied semen samples were infected with bacteria. The isolated bacteria were identified as Staphylococcus aureus, Staph. epidermidis, Staph. haemolyticus, Escherichia coli, Enterococcus faecalis and Streptococcus agalactiae. Bacteriospermia had a significant (p < .010) negative effect on sperm parameters; concentration, motility, progressive motility and chromatin condensation. Moreover, high DNA fragmentation with low P1 and P2 concentrations were noticed in infected patients in comparison to non-infected patients but non-significant. Also, the fertilization rate decreased significantly (p < .05) with infected patients. In conclusion: bacteriospermia has significant negative effect on sperm quality and fertilization rate in patients who underwent ICSI treatment.
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ISSN:1642-431X
2300-732X
2300-732X
DOI:10.1016/j.repbio.2018.01.010