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Gosálvez J, Bartolomé-Nebreda J, Tvrdá E, López-Fernández C, Fernández JL, Johnston S. Bacterial DNase activity as a putative inductor of sperm DNA fragmentation in infected bull frozen-thawed semen samples. Theriogenology 2023; 197:224-231. [PMID: 36525861 DOI: 10.1016/j.theriogenology.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
The aim of this study was to investigate the relationship between DNase activity associated with bacterial contamination of incubated bovine frozen-thawed spermatozoa and elevated sperm DNA fragmentation. Electrophoresis analysis of plasmid PBR322 incubated for 30 min at 37 °C with the supernatant of the diluent of frozen-thawed centrifuged bovine semen straws infected with bacteria showed clear evidence of DNase activity when compared to plasmid incubated in similarly prepared non-infected bovine diluent supernatant (Experiment 1). This DNase activity was subsequently found to be time dependent (0-60 min) and its activity prevented in the presence of EDTA (10 and 20 mM; Experiment 2). Semen straws infected (n = 10) and not infected (n = 10) with bacteria where incubated at 37 °C for up to 48h post-thaw. Semen infected with bacteria showed an exponential increase in bacterial growth and a corresponding increase in sperm DNA fragmentation. Non-infected semen samples showed no change in the incidence of sperm DNA fragmentation over the same period of incubation (Experiment 3). Our experiments reinforce the idea that exogenous DNases present in the semen should be considered as one of the primary contributing causes of sperm DNA fragmentation post ejaculation. In the case of the bull, post-thaw incubation of commercial straws contaminated with bacteria, resulted in increased levels of sperm DNA fragmentation, most likely associated with DNase activity (potentially restriction endonucleases) derived from the bacteria. Such adverse changes in sperm DNA fragmentation, as described here in vitro, may be also operative after insemination in the female reproductive tract (in vivo) and highlight the importance of implementing high levels of hygiene practice during semen processing, especially in light of future trends of bacterial resistance to the common antibiotics used in semen diluents.
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Affiliation(s)
- Jaime Gosálvez
- Unit of Genetics, Department of Biology, Universidad, Autónoma de Madrid, Madrid, Campus de Cantoblanco, 28049, Madrid, Spain
| | - Javier Bartolomé-Nebreda
- Unit of Genetics, Department of Biology, Universidad, Autónoma de Madrid, Madrid, Campus de Cantoblanco, 28049, Madrid, Spain; Halotech DNA, PCM Parque Científico de Madrid, C/ Faraday, 7. Planta 1. Oficina 1.08. Campus de Cantoblanco, 28049, Madrid, Spain
| | - Eva Tvrdá
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 94976, Slovakia
| | - Carmen López-Fernández
- Unit of Genetics, Department of Biology, Universidad, Autónoma de Madrid, Madrid, Campus de Cantoblanco, 28049, Madrid, Spain
| | - José Luís Fernández
- Molecular Genetics and Radiobiology Laboratory, Centro Oncológico de Galicia, 15009, A Coruña, Spain; Genetics Unit, INIBIC-Complejo Hospitalario Universitario A Coruña (CHUAC), Spain
| | - Stephen Johnston
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, Australia.
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Chand N, Pande M, Tyagi S, Sirohi AS, Mahajan S, Kumar S, Sarika, Sharma A. Antibiogram of Microorganisms Isolated from Fresh and Frozen Semen of Crossbred Frieswal Bulls. CRYOLETTERS 2022. [DOI: 10.54680/fr22610110512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: The bacterial contaminants in the semen are a major concern for most of the semen production laboratories because they adversely affect the semen quality. During sperm cryopreservation, the inclusion of antimicrobials in extenders may help to minimize bacterial growth.
However, due to bacterial resistance to commonly used antimicrobials, they cannot fully assure microbiological safety to the frozen semen. OBJECTIVE: To estimate the microbial load and antibiogram of microorganisms isolated from the fresh and frozen bull semen. MATERIALS AND METHODS:
The bacterial load was estimated in fresh and frozen semen samples of crossbred Frieswal bulls by the pour plate method. Microorganisms were identified as Gram positive and Gram negative by Gram staining. The representative bacterial colonies were streaked onto different specific media which
were further confirmed by biochemical tests. Bacterial isolates were subjected to in vitro antibiotic sensitivity test. RESULTS: The average microbial load of fresh and frozen semen samples was found to be 8397.4±524.31 cfu/mL and 680.87±105.41cfu/mL, respectively. Microorganisms
belonging to Staphylococcus aureus, Staphylococcus epidermidis, Proteus, Klebsiella, Bacillus cereus, Bacillus subtilis, Actinomyces, E. coli, Rhodococcus, Neisseria and Micrococcus were identified in the semen samples. The antibiotic sensitivity testing of the bacterial isolates
revealed that benzyl penicillin was found to be the least effective against the isolated organisms while gentamicin and spectinomycin were found to be most effective among the antibiotics used. Lincomycin, tylosin and streptomycin showed moderate efficacy against the bacterial isolates.
CONCLUSION: Gentamicin, tylosin, lincomycin, and spectinomycin (GTLS) antibiotic combination is more effective against bacterial isolates and may be added to semen extender to better control bacterial load and semen quality. .
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Affiliation(s)
- Naimi Chand
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Megha Pande
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Shrikant Tyagi
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Ajayvir S Sirohi
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Sumit Mahajan
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Suresh Kumar
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Sarika
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
| | - Ankur Sharma
- Division of Cattle Physiology and Reproduction, ICAR-Central Institute for Research on Cattle, Meerut Cantt-250001, Uttar Pradesh, India
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3
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Tvrdá E, Ďuračka M, Benko F, Lukáč N. Bacteriospermia - A formidable player in male subfertility. Open Life Sci 2022; 17:1001-1029. [PMID: 36060647 PMCID: PMC9386612 DOI: 10.1515/biol-2022-0097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/29/2022] [Accepted: 05/18/2022] [Indexed: 11/24/2022] Open
Abstract
Bacterial colonization of male reproductive tissues, cells, and fluids, and the subsequent impact of bacteria on the sperm architecture, activity, and fertilizing potential, has recently gained increased attention from the medical and scientific community. Current evidence strongly emphasizes the fact that the presence of bacteria in semen may have dire consequences on the resulting male fertility. Nevertheless, the molecular basis underlying bacteriospermia-associated suboptimal semen quality is sophisticated, multifactorial, and still needs further understanding. Bacterial adhesion and subsequent sperm agglutination and immobilization represent the most direct pathway of sperm-bacterial interactions. Furthermore, the release of bacterial toxins and leukocytic infiltration, associated with a massive outburst of reactive oxygen species, have been repeatedly associated with sperm dysfunction in bacteria-infested semen. This review serves as a summary of the present knowledge on bacteriospermia-associated male subfertility. Furthermore, we strived to outline the currently available methods for assessing bacterial profiles in semen and to outline the most promising strategies for the prevention and/or management of bacteriospermia in practice.
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Affiliation(s)
- Eva Tvrdá
- Department of Animal Physiology, Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra-Chrenová, 949 76, Slovakia
| | - Michal Ďuračka
- Department of Animal Physiology, Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra-Chrenová, 949 76, Slovakia
| | - Filip Benko
- Department of Animal Physiology, Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra-Chrenová, 949 76, Slovakia
| | - Norbert Lukáč
- Department of Animal Physiology, Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra-Chrenová, 949 76, Slovakia
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Ghoneim IM, Al-Mubarak AH, Fayez MM, Waheed MM, El-Bahr SM. Impact of antibiotics on spermatozoa quality and bacterial load of chilled-stored camels (Camelus dromedarius) semen. Trop Anim Health Prod 2021; 54:21. [PMID: 34936039 DOI: 10.1007/s11250-021-03002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/25/2021] [Indexed: 11/24/2022]
Abstract
This experiment was conducted to assess the effect of different antibiotics in tris-fructose egg yolk-based diluent on bacterial load and sperm quality of dromedary camels during processing and cold storage. Ten semen ejaculates were collected from five male dromedary camels. Each sample was fractioned into four equally divided aliquots and diluted in one of four tris-fructose egg yolk. The first extender contained no antibiotic (NC). The second extender included streptomycin sulphate (1000 μg/ml) and benzyl penicillin (1000 IU/ml) (SP). The third extender was supplied with 250 μg/ml gentamicin sulphate (Gent). The fourth extender contained 500 μg/ml gentamicin sulphate,100 μg/ml tylosin tartrate, 300 μg/ml lincomycin hydrochloride and 600 μg/ml spectinomycin hydrochloride (GTLS). After dilution, the extended semen samples were cooled to 5 °C within 2 h and finally stored at 5 °C for 72 h. Microbial concentration, motility of spermatozoa, live spermatozoa, plasma membrane and acrosome integrity percentages were evaluated just after dilution at 35 °C, 0, 24, 48 and 72 h from the start of cooling to 5 °C. The results revealed that the diluent containing gentamicin had significantly (P<0.05) maximum motility percentage at the different examination intervals. The pattern of live spermatozoa percentage was varied between the different treatments at different examination intervals. The diluent supplied with Gent was distinguished with a significant peak percentage (P<0.05) of swelled spermatozoa among the other antibiotics supplied diluents. The number of colony-forming units isolated from the semen samples kept in diluent containing no antibiotics was significantly (P<0.05) higher than that isolated from the diluents supplemented with antibiotics. In conclusion, the semen diluents fortified with gentamicin generally keep the motility, acrosomal and plasma membrane integrity and live spermatozoa for 72-h preservation of dromedary semen.
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Affiliation(s)
- I M Ghoneim
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12515, Egypt
| | - A H Al-Mubarak
- Ministry of Agriculture, Riyadh, Kingdom of Saudi Arabia
| | - M M Fayez
- Ministry of Agriculture, Riyadh, Kingdom of Saudi Arabia.,Veterinary Serum and Vaccine Research Institute, Cairo, Egypt
| | - M M Waheed
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia. .,Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12515, Egypt.
| | - S M El-Bahr
- Department of Physiology, Biochemistry and Pharmacology (Biochemistry), College of Veterinary Medicine, King Faisal University, P.O. 400, Al-Ahsa, 31982, Al-Hufof, Kingdom of Saudi Arabia.,Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
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5
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Staphylococcus-Induced Bacteriospermia In Vitro: Consequences on the Bovine Spermatozoa Quality, Extracellular Calcium and Magnesium Content. Animals (Basel) 2021; 11:ani11113309. [PMID: 34828039 PMCID: PMC8614656 DOI: 10.3390/ani11113309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/05/2021] [Accepted: 11/17/2021] [Indexed: 12/28/2022] Open
Abstract
Simple Summary Livestock semen is often contaminated by opportunistic bacterial pathogens originating from an intrinsic environment of the urogenital tract. Particularly, species classified in the Staphylococcus genus are predominantly represented in bovine ejaculates. Until recently, it was believed that these are a negligible part of the bovine ejaculate; however, recent studies revealed their potentially adverse effects on the sperm quality. Hereby, we simulated staphylococcal infection of bovine semen under laboratory conditions and analyzed its consequences on the sperm quality. Abstract Bacterial contamination of bovine ejaculates intended for artificial insemination may be reflected in a significant economic loss due to unsuccessful fertilization as well as health issues of the recipients. The Staphylococcus genus represents a large part of bacteriocenosis of bovine ejaculates. Therefore, this study aims to get a closer look on the effects of Staphylococcus-induced bacteriospermia under in vitro conditions on bovine sperm quality. Prior to inducing bacteriospermia, spermatozoa were separated from each ejaculate using Percoll® Plus gradient medium in order to limit the effects only to the selected bacterial species. Seven Staphylococcus species previously isolated from bovine semen were used for our experiments at a turbidity of 0.5 McFarland (equivalent to 1.5 × 108 colony-forming units per mL). The contaminated semen samples were incubated at 37 °C and at times of 0, 2, and 4 h, motility, mitochondrial membrane potential, reactive oxygen species (ROS) generation, sperm DNA fragmentation, and magnesium (Mg) and calcium (Ca) extracellular concentration were analyzed and compared with the control group (uncontaminated). The results showed no significant changes at the initial measurement. However, significant adverse effects were observed after 2 h and 4 h of incubation. Most notably, the presence of S. aureus, S. warneri, S. kloosii, and S. cohnii caused a significantly increased ROS production, leading to sperm DNA fragmentation, changes in the mitochondrial membrane potential, and a decreased sperm motility. Furthermore, the presence of Staphylococcus species led to lower extracellular concentrations of Mg and Ca. In conclusion, the overgrowth of Staphylococcus bacteria in bovine semen may contribute to oxidative stress resulting in sperm DNA fragmentation, altered mitochondrial membrane potential, and diminished sperm motility.
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Ďuračka M, Belić L, Tokárová K, Žiarovská J, Kačániová M, Lukáč N, Tvrdá E. Bacterial communities in bovine ejaculates and their impact on the semen quality. Syst Biol Reprod Med 2021; 67:438-449. [PMID: 34445906 DOI: 10.1080/19396368.2021.1958028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although bacterial contamination of ejaculates may cause difficulties in cattle reproduction, standard protocols for a routine microbiological analysis of bovine semen are still missing. Understanding of the mechanisms of bacterial damage to spermatozoa may contribute to the prevention and management of bacteriospermia in the future. Therefore, this study was designed to investigate bacterial profiles of fresh bovine ejaculates (n = 30), while at the same time we focused on assessing the relationships between bacteriospermia and selected sperm quality parameters as well as an array of oxidative stress and inflammatory markers. The samples were divided into three quality groups according to the sperm motility: Excellent (EX) - over 90% > Good (GO) - between 89% and 80% > Moderate (MO) - under 80%. The results showed a significant increase in reactive oxygen species (ROS) generation in the GO group when compared to the EX group. In the MO group, a deterioration of almost all quality parameters was observed when compared to the EX group. In particular, sperm motility, mitochondrial membrane potential, ROS production and IL-6 concentration exhibited a significant decline. Pearson correlation analysis revealed positive associations among bacterial load and the presence of leukocytes in semen (r = 0.965), malondialdehyde concentration (r = 0.816) and DNA fragmentation (r = 0.784). MALDI-TOF MS Biotyper analysis showed a prevalence of the Staphylococcus genus. The quantification of bacterial colonies revealed a significantly increased (P < 0.01) bacterial load in the MO group when compared with the EX as well as the GO group. Overall, our results suggest that sperm quality may be affected by both, bacterial composition, and bacterial load. It appears that an increased presence of bacterial species triggers the immune response, causes oxidative stress, and thereby contributes to sperm structural alterations while diminishing their fertilization ability.Abbreviations: EX: Excellent; GO: Good; MO: Moderate; MOT: Motility; ROS: Reactive Oxygen Species; MMP: Mitochondrial Membrane Potential; IL-1: Interleukin 1; IL-6: Interleukin 6; IL-8: Interleukin 8; IL-12: Interleukin 12; CRP: C-reactive protein; DNA: Deoxyribonucleic acid; MALDI-TOF MS: Matrix-assisted Laser Desorption/Ionization-Time of Flight Mass Spectrometry; LPO: Lipid peroxidation; CFU: Colony-forming units MDA: Malondialdehyde; CASA: Computer-assisted Sperm Analysis; WS: Working solution; RIPA: Radio-immunoprecipitation assay; TBARS: Thiobarbituric Acid Reactive Substances; BHB: D-β-hydroxybutyrate.
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Affiliation(s)
- Michal Ďuračka
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Ljubica Belić
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Katarína Tokárová
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Jana Žiarovská
- Department of Genetics and Plant Breeding, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Miroslava Kačániová
- Department of Fruit Growing, Viticulture and Enology, Slovak University of Agriculture in Nitra, Nitra, Slovakia.,Department of Bioenergy, Food Technology and Microbiology, University of Rzeszow, Rzeszow, Poland
| | - Norbert Lukáč
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
| | - Eva Tvrdá
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia
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Shah SAH, Andrabi SMH. A systematic review and meta-analysis of spermatozoa cryopreservation, in vitro and in vivo fertility practices in water buffalo. Vet Res Commun 2021; 45:47-74. [PMID: 33929679 DOI: 10.1007/s11259-021-09789-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/08/2021] [Indexed: 10/21/2022]
Abstract
We explored different aspects of buffalo spermatozoa during cryopreservation. The meta-data comprised of 285 studies, published from January 2008 to March 2020. A free web tool CADIMA as well as PRISMA 2009 Flow Diagram were used for carrying out this study. The inter-reviewer agreement among studies allocated was satisfactory for criteria A (selection bias), B (performance bias), C (detection bias) and D (attrition bias), respectively. India led the percent (%) research ladder with 34.4, followed by Pakistan (29.5), Egypt (12.3), Iran (7.7), Italy (5.6), Indonesia (3.2), China (2.1), Brazil (1.4), Thailand (1.1), Philippines and Bulgaria (0.7 each), Saudi Arabia, Turkey, Vietnam, and USA (0.4 each). Among four categories of studies, Group-1 evaluated only supplements/additives/media in the freezing semen extender (n = 191/285; 67.02%); Group-2 conducted in vivo fertilization (n = 62/285; 21.75%) and Group-3 conducted in vitro fertilization/ cleavage rate/penetration rate/ blastocyst yields (n = 28/285; 9.82%) with their specific cryodiluents/media, respectively. Group-4 conducted different experimental supplements/additives/media and carried out both in vitro and in vivo fertilization simultaneously (n = 4/285; 1.40%). Conventional spermatozoa cryopreservation was reported by 51.9% studies followed by programmable fast freezing by 20.7% studies. A few leading extender types included BioXcell (3.9%); Soyamilk-skim (3.5%); and Andromed (2.1%). The study also describes French straws for semen filling, cooling temperatures, extension time, equilibration time, cryopreservation stages, thawing temperatures, seasons, thawing time, and stains used during semen evaluation assays. The study concludes that the research on spermatozoa cryopreservation of buffalo is largely conducted at quality level and a need of applying these findings for evaluation of fertility potential (in vivo and in vitro) is indispensable for effective genetic improvement.
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Affiliation(s)
- Syed Aftab Hussain Shah
- Pakistan Scientific and Technological Information Center, Quaid-i-Azam University Campus, Islamabad, 44000, Pakistan.
| | - Syed Murtaza Hassan Andrabi
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, 45500, Pakistan.
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8
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Yousef MS, Abdelhamid HN, Hidalgo M, Fathy R, Gómez-Gascón L, Dorado J. Antimicrobial activity of silver-carbon nanoparticles on the bacterial flora of bull semen. Theriogenology 2020; 161:219-227. [PMID: 33340755 DOI: 10.1016/j.theriogenology.2020.12.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/10/2020] [Accepted: 12/05/2020] [Indexed: 12/16/2022]
Abstract
The spermicidal effects of silver nanoparticles (AgNPs) hinder its application in the field of artificial insemination. In this study, silver-carbon NPs (Ag@C NPs) was synthesized and applied as an alternative antibiotic agent for bull semen extender. Ag@C NPs were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic absorption flame spectroscopy, transmission electron microscope (TEM), and high-resolution TEM (HR-TEM). Data analysis revealed the successful synthesis of Ag@C NPs with a particle size of 1-5 nm (average particle size of 2.5 nm) embedded into carbon. The antimicrobial activity of Ag@C NPs was tested against bacteriospermia of fresh semen collected from five fertile bulls (three ejaculates/bull). Escherichia coli (E. Coli), Staphylococcus aureus (S. aureus), and Pseudomonas aeruginosa (P. aeruginosa) were isolated from fresh semen samples and identified by culture, staining, and conventional biochemical tests. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of Ag@C NPs against bacteriospermia was determined at 5 and 37 °C. Ag@C NPs showed efficient antimicrobial activity (MIC: 3.125-12.5 μg/mL) against the tested strains and strong bactericidal effect on S. aureus, and P. aeruginosa (MBC: 3.125 μg/mL), with no detrimental effect (P ˃ 0.05) on the percentage of sperm motility (70.71 ± 4.82; 74.65 ± 4.46), plasma membrane integrity (68.39 ± 4.31; 72.38 ± 4.91), acrosome integrity (88.40 ± 13.21; 86.77 ± 14.23), and normal sperm morphology (86.85 ± 7.43; 87.82 ± 8.15) at concentrations of 15 and 30 μg/mL, respectively, after a cold storage of 48 h. However, Ag@C NPs showed a detrimental effect on sperm parameters in a dose dependent manner at concentrations ≥60 μg/mL. Ag@C NPs showed no adverse effect on the sperm's ultrastructure with limited sperm internalization at MIC. In conclusion, Ag@C NPs could be used as an alternative antibiotic agent for bull semen extender without a significant cytotoxic effect on the sperm during cold storage. However, further investigations for their effects on embryo production and female genitalia are still required.
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Affiliation(s)
- M S Yousef
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain; Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Egypt
| | - Hani Nasser Abdelhamid
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Faculty of Science, Assiut University, Egypt.
| | - M Hidalgo
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - R Fathy
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Egypt
| | - L Gómez-Gascón
- Department of Animal Health, University of Cordoba, 14071, Cordoba, International Excellence Agrifood Campus, CeiA3, Spain
| | - J Dorado
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain.
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9
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Elkhawagah AR, Martino NA, Ricci A, Storti V, Rumbolo F, Lange-Consiglio A, Vincenti L. Effect of relaxin on cryopreserved beef bull semen characteristics. Cryobiology 2020; 95:51-59. [PMID: 32561273 DOI: 10.1016/j.cryobiol.2020.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 11/25/2022]
Abstract
This study aimed to improve the quality of cryopreserved beef bull (Piedmontese) semen by incorporation of relaxin in diluted semen before cryopreservation procedures. Semen samples were collected from 4 proven fertile bulls, using artificial vagina, once per week for 8 consecutive weeks and pooled together then diluted with Bullxcell® extender, and supplemented with different concentrations of relaxin (0 (control), 25, 50 and 100 ng/ml) before cooling, equilibration and freezing procedures. Frozen semen was thawed and assessed for motility by Computer-Assisted Sperm Analysis and vitality parameters such as acrosome, plasma membrane and DNA integrities, apoptosis, mitochondrial membrane potential, mucus penetration and SOD activity. The developmental potential of bovine embryos produced in vitro by using relaxin-treated was also investigated. In the present study, 50 and 100 ng/ml relaxin incorporation in extended bull semen before cryopreservation induced a reduction of sperm motility immediately after thawing (0h), whereas, during long incubation periods (1-2 h), relaxin showed a significant positive effect on sperm quality by improving the sperm motility and velocity parameters. Interestingly, sperm vitality was improved by 25 and 100 ng/ml relaxin and the blastocyst developmental rate was significantly increased in the 25 ng/ml relaxin group compared with controls (52/118, 44.0% vs. 32/116, 27.6%, respectively). These findings suggest a potential use of relaxin at the doses tested in the present study as an additive in the cryopreservation media of bull semen to improve sperm quality.
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Affiliation(s)
- Ahmed R Elkhawagah
- Theriogenology Department, Faculty of Veterinary Medicine, Benha University, Egypt
| | - Nicola A Martino
- Department of Veterinary Science, University of Torino, Grugliasco, Italy.
| | - Alessandro Ricci
- Department of Veterinary Science, University of Torino, Grugliasco, Italy
| | - Valentina Storti
- Department of Veterinary Science, University of Torino, Grugliasco, Italy
| | - Francesca Rumbolo
- Laboratory of Endocrinology, Diabetology and Metabolism. Division of Endocrinology Diabetology and Metabolism, Department of Medical Sciences, University of Torino, Torino, Italy
| | | | - Leila Vincenti
- Department of Veterinary Science, University of Torino, Grugliasco, Italy
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10
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Santos CS, Silva AR. Current and alternative trends in antibacterial agents used in mammalian semen technology. Anim Reprod 2020; 17:e20190111. [PMID: 32399069 PMCID: PMC7212743 DOI: 10.21451/1984-3143-ar2019-0111] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The use of antibacterial substances as additives in extenders for ensuring the sanitary quality of the semen employed in reproductive biotechniques and preserving it from bacterial deterioration has been reported since the mid-twentieth century. However, the deleterious effects of these drugs on the sperm quality as well as their effectiveness in controlling bacterial growth in the preserved semen have been questioned. The aim of this review was to report the antimicrobials primarily used in the extenders added to the semen of mammals, and to present alternatives to their use. Among the various mammalian species, there is a large variation regarding the antimicrobial types added to semen extenders as cephalosporins (ceftiofur, cefdinir, eg) and quinolones (ofloxacin, ciprofloxacin), alone or in combination with large action spectra substances as penicillin-streptomycin and gentamicin-tylosin-lincomycin-spectinomycin. To combat problems related to bacterial resistance to these drugs, the emergence of alternatives is increasingly evident. Among these alternatives, use of physical methods as centrifugation and filtration, as well as the use of antimicrobial peptides and other substances from different origins have been highlighted for presenting antimicrobial potential.
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Affiliation(s)
- Caio Sérgio Santos
- Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido, Mossoró, RN, Brasil
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11
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Nasreen S, Awan MA, ul-Husna A, Rakha BA, Ansari MS, Holt W, Akhter S. Honey as an Alternative to Antibiotics for Cryopreservation of Nili-Ravi Buffalo Bull Spermatozoa. Biopreserv Biobank 2020; 18:25-32. [DOI: 10.1089/bio.2019.0054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Shiza Nasreen
- Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Amjad Awan
- Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Asma- ul-Husna
- Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Bushra Allah Rakha
- Department of Wildlife Management, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Sajjad Ansari
- Division of Science and Technology, Township, Department of Zoology, University of Education, Lahore, Pakistan
| | - William Holt
- Academic Unit of Reproductive and Developmental Medicine, University of Sheffield, Sheffield, United Kingdom
| | - Shamim Akhter
- Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
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12
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Goularte KL, Voloski FLS, Redú JFM, Ferreira CER, Vieira AD, Duval EH, Mondadori RG, Lucia T. Antibiotic resistance in microorganisms isolated in a bull semen stud. Reprod Domest Anim 2020; 55:318-324. [PMID: 31961046 DOI: 10.1111/rda.13621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 12/29/2019] [Indexed: 11/28/2022]
Abstract
Many microorganisms from various sources may be present in ejaculates of bulls. This study identified and isolated bacteria from bull sperm samples in a commercial stud and evaluated their resistance to antibiotics. The number of colony-forming units was determined in semen samples collected at distinct steps during freezing and thawing. The minimum inhibitory concentration and the minimum bactericidal concentration were determined for four antibiotics commonly used in commercial studs. A total of 135 microorganisms from 25 genera were isolated. After a sensitivity test, all evaluated microorganisms (n = 55) were resistant to penicillin and most of them were resistant to tylosin and lincomycin (n = 54). Resistance to all tested antibiotics was observed in 22% of all isolates, whereas only 3.9% of the isolates were inhibited by the tested antibiotics at the concentrations recommended by the international legislation. As the isolated microorganisms presented high resistance to frequently used antibiotics, sensitivity tests should be periodically conducted in commercial bull semen studs to prevent the use of contaminated semen in artificial insemination.
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Affiliation(s)
- Karina L Goularte
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Flávia L S Voloski
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Josiara F M Redú
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Carlos E R Ferreira
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Arnaldo D Vieira
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Eduarda H Duval
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Lipoa, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Rafael G Mondadori
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Instituto de Biologia, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Thomaz Lucia
- ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.,Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil
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13
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Feng TY, Ren F, Fang Q, Dai GC, Li Y, Li Q, Xi HM, Li H, Hao YY, Hu JH. Effects of sulfanilamide on boar sperm quality, bacterial composition, and fertility during liquid storage at 17°C. Anim Sci J 2019; 90:1161-1169. [PMID: 31381235 DOI: 10.1111/asj.13281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 06/24/2019] [Accepted: 07/08/2019] [Indexed: 11/28/2022]
Abstract
Sulfanilamide (SA) is an effective broad-spectrum antibacterial agent in human and veterinary medicine. The purpose of this study was to evaluate the effects of SA on boar sperm quality during liquid storage at 17°C and determine the optimal concentration of SA and its effects on bacterial growth, microbial composition, and maternal fertility. Boar ejaculates were diluted with a basic extender, containing different concentrations of SA, and stored in a 17°C incubator for 6 days. The sperm motility, plasma membrane integrity, and acrosome integrity were measured daily. The results showed that when the concentration of SA was 0.02 g/L, the sperm quality parameters were significantly higher than those of all other treatment groups (p < .05). We also monitored the bacterial growth and compared the differences in the microbial species between the 0.02 g/L SA group and the control by 16S rDNA sequencing. The results revealed that some bacteria, such as Staphylococcus and Pseudomonas, were considerably lower in the 0.02 g/L SA group than in the control group (p < .05). In addition, preserved semen was used for artificial insemination, and results showed that 0.02 g/L SA group had a higher litter size, and its pregnancy rate was 92.5%.
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Affiliation(s)
- Tian-Yu Feng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Fa Ren
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Qian Fang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Gui-Chao Dai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yu Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Qian Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Hua-Ming Xi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Hao Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Yang-Yi Hao
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jian-Hong Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
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14
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Mohammed K. Application of advanced reproductive biotechnologies for buffalo improvement with focusing on Egyptian buffaloes. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2018. [DOI: 10.4103/2305-0500.241177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Hussain Shah SA, Hassan Andrabi SM, Ahmed H, Qureshi IZ. Chicken egg yolk plasma in tris-citric acid extender improves the quality and fertility of cryopreserved water buffalo ( Bubalus bubalis ) spermatozoa. Theriogenology 2017; 89:32-40. [DOI: 10.1016/j.theriogenology.2016.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/24/2016] [Accepted: 10/10/2016] [Indexed: 10/20/2022]
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16
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Khalil Ur Rehman H, Andrabi SMH, Ahmed H, Shah SAH. Programmable fast-freezing method improves the post-thaw motion dynamics, integrities of plasmalemma, mitochondrial transmembrane, DNA and, acrosome, and in vivo fertility of water buffalo (Bubalus bubalis) spermatozoa. Andrologia 2016; 49. [PMID: 27813131 DOI: 10.1111/and.12733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2016] [Indexed: 12/17/2022] Open
Abstract
The effects of freezing methods (FR1, nonprogrammable/static, 5 cm above liquid nitrogen [LN2 ] for 10 min, plunging in LN2 ; FR2, programmable medium, +4°C to -15°C at 3°C min-1 , from -15 to -80°C at 10°C min-1 and final holding for 1 min at -80°C, plunging in LN2 ; FR3, programmable fast, from initial holding at +4°C for 2 min, from +4°C to -20°C at 10°C min-1 , from -20°C to -100°C at 30°C min-1 , final holding for 1 min at -100°C and plunging in LN2 ) were assessed on post-thaw in vitro quality and in vivo fertility of water buffalo spermatozoa. Mean sperm progressive motility (%), rapid velocity (%), average path velocity (μm s-1 ), straight line velocity (μm s-1 ), curved line velocity (μm s-1 ), integrities (%) of plasmalemma, mitochondrial transmembrane, DNA and acrosome were higher (p < .05) in samples cryopreserved with FR3 compared to FR1 and FR2. Similarly, in vivo fertility (%) of buffalo spermatozoa was higher (p < .05) with FR3 than FR1 (%; 68.0 versus 50.0). We concluded that programmable fast-freezing method (FR3) improves the post-thaw in vitro quality and in vivo fertility of water buffalo spermatozoa.
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Affiliation(s)
- H Khalil Ur Rehman
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
| | - S M H Andrabi
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
| | - H Ahmed
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
| | - S A H Shah
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Center, Islamabad, Pakistan
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17
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Semen quality parameters as fertility predictors of water buffalo bull spermatozoa during low-breeding season. Theriogenology 2016; 86:1516-1522. [DOI: 10.1016/j.theriogenology.2016.05.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 05/11/2016] [Accepted: 05/12/2016] [Indexed: 11/22/2022]
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