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Zheng Y, Wu YB, Jia YL, Ying LJ, Yang TT, Cheng QY, Qin J, Luo C, Yu L, Li FP. External quality assessment scheme for sperm DNA fragmentation: a pilot study in China. Basic Clin Androl 2023; 33:36. [PMID: 38012601 PMCID: PMC10683090 DOI: 10.1186/s12610-023-00211-0] [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: 07/23/2023] [Accepted: 09/13/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND The aim of this article is to establish an external quality assessment (EQA) scheme for sperm Deoxyribonucleic acid (DNA) fragmentation (SDF) detection, and to assess the feasibility of the scheme. In addition, this article provides some case analysis of abnormal results in order to really help improve the performance of the laboratory. RESULTS In 2021 and 2022, 10 and 28 laboratories in China volunteered to participate in the EQA program respectively. Two samples were selected for EQA each year, a large spread of results was obtained for the four samples, and the highest values were 13.7, 4.2, 8.0 and 4.0 times the lowest respectively. The coefficients of variation (CVs) were very high for the four samples, at 46.6%, 30.1%, 26.7% and 30.3%, respectively. The CVs of the samples with high SDF values were lower than those of the samples with low SDF values. There was no significant difference between the results of sperm chromatin structure assay (SCSA) and sperm chromatin dispersion (SCD). For the 10 laboratories that participated in EQA in 2021 and 2022, the CVs of low SDF value samples and high SDF value samples decreased from 46.6% and 30.1% in 2021 to 32.5% and 22.7% in 2022, respectively. CONCLUSION This is the first study to evaluate the EQA program on SDF, which involved a number of laboratories and was demonstrated to be feasible. It is recommended that all laboratories participate in the EQA of SDF to ensure the accuracy of the results.
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Affiliation(s)
- Yan Zheng
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Ying-Bi Wu
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Ye-Lin Jia
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Li-Juan Ying
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Ting-Ting Yang
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Qing-Yuan Cheng
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Jiao Qin
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Chen Luo
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China
| | - Lin Yu
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China.
| | - Fu-Ping Li
- Department of Andrology/Sichuan Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, P.R. China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, P.R. China.
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Neila-Montero M, Alvarez M, Riesco MF, Montes-Garrido R, Palacin-Martinez C, Silva-Rodríguez A, Martín-Cano FE, Peña FJ, de Paz P, Anel L, Anel-Lopez L. Ovine fertility by artificial insemination in the breeding season could be affected by intraseasonal variations in ram sperm proteomic profile. Theriogenology 2023; 208:28-42. [PMID: 37290145 DOI: 10.1016/j.theriogenology.2023.05.030] [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: 02/16/2023] [Revised: 04/24/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
It is important to note that seasonality could affect ram reproductive parameters, and therefore, fertility results after artificial insemination. In this work, 1) we assessed fertility rates after cervical artificial insemination of 11,805 ewes at the beginning (June 21st to July 20th) and at the end (November 20th to December 21st) of the reproductive season in the Assaf breed for the last four years, and 2) we aimed to identify male factors influencing the different reproductive success obtained depending on the time at the mating season in which ovine artificial insemination was performed. For this purpose, we evaluated certain ram reproductive and ultrasonographical parameters as well as we performed a multiparametric and proteomic sperm analysis of 6-19 rams at two very distant points in the mating season (July as Early Breeding Season -EBS- and November as Late Breeding Season -LBS-). Rutinary assessments carried out in the ovine reproduction centers (testicular volume, libido, sperm production and mass motility) showed non-significant differences (P ≥ 0.05) between both studied times, as well as the ram ultrasonographic evaluation (Resistive and Pulsatility Index as Doppler parameters; and pixels mean gray level, and hypoechoic areas percentage and density as echotexture parameters). However, at level of sperm functionality, although sperm quality appeared non-significantly lower (P ≥ 0.05) in the EBS, we identified a significantly different (P < 0.05) sperm proteomic profile between the seasonality points. The following proteins were identified with the lowest abundance in the EBS with a fold change > 4, a P = 2.40e-07, and a q = 2.23e-06: Fibrous Sheath-Interacting Protein 2, Disintegrin and Metalloproteinase Domain-Containing Protein 20-like, Phosphoinositide-Specific Phospholipase C, Tektin 5, Armadillo Repeat-Containing Protein 12 Isoform X3, Solute Carrier Family 9B1, Radial Spoke Head Protein 3 Homolog, Pro-Interleukin-16, NADH Dehydrogenase [Ubiquinone] 1 Alpha Subcomplex Subunit 8, Testis, Prostate and Placenta-Expressed Protein, and Acyl Carrier Protein Mitochondrial. In conclusion, while our basic analyses on male and sperm quality showed similar results between the beginning and the end of the breeding season, on a proteomic level we detected a lower expression of sperm proteins linked to the energy metabolism, sperm-oocyte interactions, and flagellum structure in the EBS. Probably, this different protein expression could be related to the lower fertility rate of Assaf ewes after cervical artificial insemination at this time. More importantly, sperm proteins can be used as highly effective molecular markers in predicting sperm fertilization ability related to intraseasonal variations.
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Affiliation(s)
- Marta Neila-Montero
- Itra-ULE, INDEGSAL, University of León, León, Spain; Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Mercedes Alvarez
- Itra-ULE, INDEGSAL, University of León, León, Spain; Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Marta F Riesco
- Itra-ULE, INDEGSAL, University of León, León, Spain; Cellular Biology, Department of Molecular Biology, University of León, León, Spain.
| | - Rafael Montes-Garrido
- Itra-ULE, INDEGSAL, University of León, León, Spain; Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Cristina Palacin-Martinez
- Itra-ULE, INDEGSAL, University of León, León, Spain; Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Antonio Silva-Rodríguez
- Facility of Innovation and Analysis in Animal Source Foodstuffs, University of Extremadura, Cáceres, Spain
| | - Francisco E Martín-Cano
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Fernando J Peña
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Paulino de Paz
- Itra-ULE, INDEGSAL, University of León, León, Spain; Cellular Biology, Department of Molecular Biology, University of León, León, Spain
| | - Luis Anel
- Itra-ULE, INDEGSAL, University of León, León, Spain; Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
| | - Luis Anel-Lopez
- Itra-ULE, INDEGSAL, University of León, León, Spain; Anatomy, Department of Veterinary Medicine, Surgery and Anatomy, University of León, León, Spain
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Salman A, Fernández-Alegre E, Francisco-Vázquez R, Gómez-Martín R, Fernández-Fernández A, Areán-Dablanca H, Domínguez JC, González-Montaña JR, Caamaño JN, Martínez-Pastor F. Extension of the equilibration period up to 24 h maintains the post-thawing quality of Holstein bull semen frozen with OPTIXcell®. Anim Reprod Sci 2023; 250:107209. [PMID: 36889162 DOI: 10.1016/j.anireprosci.2023.107209] [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: 12/19/2022] [Revised: 02/27/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023]
Abstract
Semen cryopreservation in bovine livestock is well established, but logistics often require deviations from standard protocols. Extending the equilibration time to the following day is convenient in many situations. To improve our knowledge of the effects of this modification, we studied the post-thawing and post-incubation (4 h, 38 °C) sperm quality after freezing with 4 or 24-h extension in the OPTIXcell extender by using an ample panel of analyses: CASA for motility; flow cytometry for viability, physiology, oxidative stress, and chromatin parameters (DNA fragmentation, chromatin compaction, and thiol groups status); and spectrometry for malondialdehyde production. Semen was obtained from 12 Holstein bulls. The 24-h equilibration time showed few significant effects, with only a tiny decrease in progressive motility and a positive impact on chromatin structure. The incubation removed some of these effects, with the pattern for chromatin compaction remaining the same. No detrimental oxidative stress or increase in apoptotic or capacitation markers was detected. Additionally, the individual bull interacted with the effects of the incubation and the equilibration, especially regarding the chromatin status. Whereas this interaction did not critically affect sperm quality, it could be relevant in practice. Bull fertility as non-return rates (NRR56) was associated with some sperm parameters (especially with an improved chromatin structure) but not in the 4-h post-thawing analysis. Our study supports that extending the equilibration time by at least 24-h is feasible for bull semen freezing with the OPTIXcell extender.
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Affiliation(s)
| | | | | | | | | | | | - Juan Carlos Domínguez
- INDEGSAL, Universidad de León, León, Spain; Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, Spain
| | - J Ramiro González-Montaña
- INDEGSAL, Universidad de León, León, Spain; Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, Spain
| | - J Néstor Caamaño
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Felipe Martínez-Pastor
- INDEGSAL, Universidad de León, León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, León, Spain.
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Bittner-Schwerda L, Malama E, Siuda M, van Loon B, Bollwein H. The sperm chromatin structure assay does not detect alterations in sperm chromatin structure induced by hydrogen peroxide. Anim Reprod Sci 2022; 247:107094. [DOI: 10.1016/j.anireprosci.2022.107094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/01/2022]
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Ausejo R, Martínez JM, Mendoza N, Bolarin A, Tejedor MT, Falceto MV. Nuclear DNA Fragmentation in Boar Spermatozoa: Measurement Methods and Reproductive Performance Implications. Front Vet Sci 2022; 9:929858. [PMID: 35847654 PMCID: PMC9281558 DOI: 10.3389/fvets.2022.929858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of this research was to compare the different techniques to measure sperm nuclear DNA fragmentation (sDF) and to check its relations to boar reproductive value, classical spermiogram parameters, and reproductive results of the doses in sows. Sperm chromatin stability assay (SCSA), terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, and sperm chromatin dispersion test (SCD, Halomax®) results were compared, finding a statistically significant correlation only between SCSA and TUNEL results. The fertility direct boar effect (DBE) index, calculated from the whole productive life of the boar, was not correlated (p > 0.05) with sDF (measured by any technique). Total or progressive sperm motility was not correlated with sDF, while it found a positive correlation between TUNEL measure and abnormal acrosomes (%) and between SCD measure and total sperm morphological abnormalities (%). No significant correlations were obtained between fertility or prolificacy results and sDF results with the different techniques. However, in the case of total born and SCSA measure, the correlation was close to significance (r partial = −0.095; p = 0.066), appointing to a tendency; as SCSA increases, the number of total piglets born decreases. In conclusion, although the different techniques for the sDF seem not to target exactly the same DNA events and the relationship between their values and the reproductive results and the classical spermiogram results is still to be elucidated, the studied sDF techniques may offer extra information that could be useful for the management of AI studs.
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Affiliation(s)
- Raquel Ausejo
- Department of Animal Pathology, Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
- Department of Biotechnology R&D, Magapor S.L., Ejea de los Caballeros, Spain
| | - Juan Manuel Martínez
- Department of Research and Development, CiencIAnova Magapor, Zaragoza, Spain
- *Correspondence: Juan Manuel Martínez
| | - Noelia Mendoza
- Department of Biotechnology R&D, Magapor S.L., Ejea de los Caballeros, Spain
| | - Alfonso Bolarin
- Department of Animal Pathology, Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - M. Teresa Tejedor
- Department of Anatomy, Embryology and Genetics, CIBERCV, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Maria Victoria Falceto
- Department of Animal Pathology, Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
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Kozłowska N, Faundez R, Borzyszkowski K, Dąbrowski S, Jasiński T, Domino M. The Relationship between the Testicular Blood Flow and the Semen Parameters of Rams during the Selected Periods of the Breeding and Non-Breeding Seasons. Animals (Basel) 2022; 12:ani12060760. [PMID: 35327158 PMCID: PMC8944436 DOI: 10.3390/ani12060760] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/11/2022] [Accepted: 03/16/2022] [Indexed: 02/01/2023] Open
Abstract
The study aimed to conduct advanced semen evaluation tests during routine ram examination periods in the breeding and non-breeding seasons and to investigate their correlation with the dynamics of testicular blood flow. Semen was collected from eighteen rams, and pulse wave Doppler examination before (BBS), during (BS), and after the breeding season (ABS). Routine and advanced semen analysis, including computer-assisted sperm analysis (CASA), sperm chromatin dispersion test (SCD), and motile sperm organelle morphology examination (MSOME), were conducted. In Doppler ultrasonography, the peak systolic velocity (PSV), end-diastolic velocity (EDV), resistive index (RI), and pulsatility index (PI) were calculated. In BS period, high sperm concentration (p < 0.0001) and total sperm number/ejaculate (p = 0.008) were noted. During the BBS period, a low percentage of forwarding motility (p = 0.017) and high sperm abnormalities (p = 0.005) were found. Also during this period, both SCD and MSOME revealed high sperm DNA fragmentation (p < 0.0001) and signs of vacuolization (Grade II-IV, p < 0.05). The advanced features of higher sperm abnormalities (Grade IV of MSOME) correlated with an increase RI (ρє <0.60;0.61>) and PI (ρє <0.46;0.52>), whereas the basic percentage of sperm abnormalities correlated with the EDV (ρє <0.44;0.73>) value. One may conclude that the current preliminary study requires further research concerning the monthly examination of a ram to provide full yearly characteristics of the relation between advanced semen evaluation tests and the dynamics of testicular blood flow.
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Affiliation(s)
- Natalia Kozłowska
- Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland; (N.K.); (S.D.); (T.J.)
| | - Ricardo Faundez
- InviMed Fertility Clinics, 02-532 Warsaw, Poland
- Correspondence: (R.F.); (M.D.); Tel.: +48-22-593-61-91 (M.D.)
| | | | - Sebastian Dąbrowski
- Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland; (N.K.); (S.D.); (T.J.)
| | - Tomasz Jasiński
- Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland; (N.K.); (S.D.); (T.J.)
| | - Małgorzata Domino
- Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland; (N.K.); (S.D.); (T.J.)
- Correspondence: (R.F.); (M.D.); Tel.: +48-22-593-61-91 (M.D.)
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Arregui L, Martinez-Pastor F, Arroyo F, Gosálvez J. Determining the effects of sperm activation in anuran cloaca on motility and DNA integrity in Epidalea calamita (Bufonidae). Reprod Fertil Dev 2021; 34:438-446. [PMID: 34399881 DOI: 10.1071/rd21063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/24/2021] [Indexed: 11/23/2022] Open
Abstract
The effect of time inside the animal's cloaca on sperm quality after hormone-induced spermiation is unknown. However, this knowledge is critical for the development of assisted reproductive biotechnologies in amphibians. Out-of-season spermatozoa were collected from Epidalea calamita for 4h after injection of 10IU g-1 human chorionic gonadotrophin either hourly (Group I (n=10); four samples per male) or every 2h (Group II (n=9); two samples per male). Sperm samples were assessed for motility and DNA integrity using the sperm chromatin dispersion (SCD) test and the sperm chromatin structure assay (SCSA). The collection strategy affected total motility (mean (±s.e.m.) 84.4±9.9% vs 73.6±16.7% in Group I and II respectively; P=0.014) and the sperm motility index (67.6±17.7% vs 57.6±16.3% in Group I and II respectively; P=0.034). There was a significant effect of the male in Group II, but not in Group I. In Group I, the quality of the first samples collected was lower than that of samples collected thereafter (P ≤ 0.032). No significant correlations were found between the results of the SCD test and SCSA, showing that these techniques provide different information in this species. In conclusion, collecting spermatozoa every hour resulted in better sperm quality and may be more efficient. However, the between-male differences were considerable and collection of spermatozoa at just 1h after hormone treatment produced lower-quality spermatozoa.
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Affiliation(s)
- Lucía Arregui
- Department of Biology, Universidad Autónoma de Madrid, C/Darwin 2, Madrid 28049, Spain; and Corresponding author
| | - Felipe Martinez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, Campus de Vegazana s/n, León 24071, Spain; and Department of Molecular Biology (Cell Biology), Universidad de León, Campus de Vegazana s/n, León 24071, Spain
| | - Francisca Arroyo
- Department of Biology, Universidad Autónoma de Madrid, C/Darwin 2, Madrid 28049, Spain
| | - Jaime Gosálvez
- Department of Biology, Universidad Autónoma de Madrid, C/Darwin 2, Madrid 28049, Spain
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Lipovac M, Nairz V, Aschauer J, Riedl C. The effect of micronutrient supplementation on spermatozoa DNA integrity in subfertile men and subsequent pregnancy rate. Gynecol Endocrinol 2021; 37:711-715. [PMID: 34184957 DOI: 10.1080/09513590.2021.1923688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND Male infertility has been related to an increased sperm DNA fragmentation index (DFI). Nutritional factors may improve sperm nuclear DNA integrity and thus pregnancy rates. Objective: To evaluate the effect of micronutrient supplementation on sperm DNA integrity in subfertile men and subsequent pregnancy rates. METHODS In this retrospective comparative study 339 subfertile males were included on whom a sperm chromatin dispersion test (SCD) was performed as a method to detect DNA fragmentation, as well as an initial semen analysis. Of all, n = 162 received a nutritional management program for three months, consisting of two daily capsules of a standardized combined micronutrient formulation together with a guidance to diet modification and to lifestyle changes (study group). Each capsule contained L-carnitine, L-arginine, coenzyme Q10, zinc, vitamin E, folic acid, glutathione, and selenium. The control group consisted of those patients who did not receive the active treatment (n = 177), yet were instructed to engage in a healthy lifestyle, including a modification of their regular diet. The SCD test was repeated for both groups after three months. As part of the routine follow up, pregnancy rate was assessed six months after the second SCD test. Males with complete follow up and healthy female partners (aged 18 to 40 years) where included. RESULTS Data of men with an initial mean DFI of >15% were analyzed first (n = 81;46 study and 35 control patients). After three months, both groups displayed a significant decrease of mean DFI values; however, the mean percent difference was higher in the study group (10.46 ± 1.20 % vs. 5.29 ± 0.57 %; p < .001). Then, the entire population was considered (n = 339). After three months, only the study group displayed a significant decrease of mean DFI initial values (10.48 ± 7.76 % to 6.51 ± 4.61%; p < .001); and the percent difference was higher in the study group (3.97 ± 0.28 % vs. 0.91 ± 0.28 %; p < .001). At six months follow-up, pregnancy rate was higher in the study group (27.78% vs. 15.25%, p = .002). CONCLUSION Both regimes significantly reduced sperm DNA fragmentation among subfertile men with a DFI >15%; however, when any baseline DFI value was considered, only micronutrient supplementation achieved a better result on DFI and thus pregnancy rate was higher.
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Affiliation(s)
- Markus Lipovac
- IMI Fertility Center, Vienna, Austria
- Karl Landsteiner Institute for cell-based therapy in Gynecology, Korneuburg, Austria
| | | | | | - Claus Riedl
- Department of Urology, General Public Hospital Baden, Austria
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Salman A, Caamaño JN, Fernández-Alegre E, Hidalgo CO, Nadri T, Tamargo C, Fueyo C, Fernández Á, Merino MJ, Martínez-Pastor F. Supplementation of the BIOXcell extender with the antioxidants crocin, curcumin and GSH for freezing bull semen. Res Vet Sci 2021; 136:444-452. [PMID: 33812287 DOI: 10.1016/j.rvsc.2021.03.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/28/2021] [Accepted: 03/25/2021] [Indexed: 11/18/2022]
Abstract
Semen cryopreservation is routine in cattle, but the results of artificial insemination need improvement. A strategy to these aims is the supplementation of the freezing extender with novel antioxidants. This study aimed at testing the natural antioxidants curcumin and crocin as supplements to the commercial extender BIOXcell for freezing semen from 8 Holstein bulls. We tested curcumin at 0.05 and 0.1 mM (CU0.05, CU0.1) and crocin at 0.5 and 1.5 mM (CR0.5, CR1.5), with 0.5 mM reduced glutathione (GSH0.5) as reference, and a control (CTL, without supplementation). The samples were evaluated post-thawing and after 5 h at 38 °C by CASA for motility and flow cytometry for viability, apoptotic, capacitation, acrosomal status, cytoplasmic and mitochondrial reactive oxygen species (ROS) production, and chromatin status (SCSA). Control and GSH0.5 showed similar results, possibly because of the good protection from BIOXcell. CU0.05 and CU0.1 showed little effects but increased cytoplasmic ROS production and motility ALH. CR0.5 and CR1.5 decreased viability and increased apoptotic features significantly post-thawing and after the incubation, resulting in lower motility (significant after the incubation) but decreasing SCSA %HDS (loose chromatin). Whereas crocin at these concentrations seems incompatible with BIOXcell, maybe because of a prooxidant activity, curcumin use merits further research, considering the elevation of ROS with no significant negative effects.
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Affiliation(s)
- Amer Salman
- INDEGSAL, Universidad de León, 24071 León, Spain
| | | | | | | | - Touba Nadri
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | | | | | | | | | - Felipe Martínez-Pastor
- INDEGSAL, Universidad de León, 24071 León, Spain; Molecular Biology (Cell Biology), Universidad de León, 24071 León, Spain.
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10
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Seasonal Changes of Nuclear DNA Fragmentation in Boar Spermatozoa in Spain. Animals (Basel) 2021; 11:ani11020465. [PMID: 33572479 PMCID: PMC7916369 DOI: 10.3390/ani11020465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 12/03/2022] Open
Abstract
Simple Summary Artificial insemination is widely used in pig production and currently a boar performs several thousand matings per year. Traditionally sperm quality is focused on the number of spermatozoa, their motility and morphology. However, the quality of sperm DNA, which contains genetic information, is also related to fertility problems. The aim of this research was to study the effect of natural light hours and age of the boar on the status of the sperm DNA. After a powerful statistical analysis, it was found that the percentage of spermatozoa with fragmented DNA decreases within the observed age range as the boar gets older. On the other hand, the amount of spermatozoa with fragmented DNA was the lowest in autumn while it was the highest in summer. This study demonstrates the remaining seasonality of boars in Spain and highlights the importance of controlling the environmental conditions in the farms. Sperm DNA testing provides a basis for improving the selection of AI boars by excluding males with higher DNA fragmentation due to their very young reproductive age that may pose a potential subfertility. Abstract There are numerous cases when conventional spermiogram parameters are all within an acceptable range but boar subfertility persists. The total sperm nuclear DNA fragmentation index (tDFI) is a trait related to fertility and prolificacy problems that is not routinely evaluated in commercial AI boars. The aim of this research was to study the effect of the photoperiod, season and reproductive age of the boar on tDFI (measured by SCSA) of 1279 ejaculates from 372 different boars belonging to 6 different breeds located in 6 AI studs in Spain. tDFI data ranged from 0.018% to 20.1%. Although there was a significant single boar effect in the tDFI occurrence, a negative correlation between the tDFI and the age of the boar was found (p < 0.001). tDFI would decrease due to aging of the boar 0.66% each year old within the observed age range. After including age as a covariate in the ANCOVA, no differences were found in tDFI between photoperiods when the sperm collection date was evaluated. However, when the date of the production of semen in the testis was evaluated, the total percentage of spermatozoa with fragmented nuclear DNA was 1.46% higher in the increasing photoperiod in comparison to the decreasing photoperiod (p < 0.0001). On the other hand, for both dates, the lowest tDFI values corresponded to minimum day length for decreasing photoperiod phase (autumn), while the highest tDFI values were found in summer (maximum day length for decreasing photoperiod phase).
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Lv C, Larbi A, Memon S, Liang J, Fu X, Wu G, Quan G. The Effects of Antifreeze Protein III Supplementation on the Cryosurvival of Goat Spermatozoa During Cryopreservation. Biopreserv Biobank 2021; 19:298-305. [PMID: 33524297 DOI: 10.1089/bio.2020.0140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Antifreeze protein (AFP) has been shown to have beneficial effects on frozen mammalian spermatozoa. However, rare reports have been published regarding the use of AFPs in storage of goat spermatozoa. The aim of this study was to investigate the effects of AFPIII on the quality of goat semen during cryopreservation. Ejaculates were collected from six Yunshang black goats through an artificial vagina. The collected semen was pooled, divided into five aliquots, and diluted with the commercial bull semen extender containing: no AFPIII (AFP-0, control), 1 μg/mL AFPIII (AFP-1), 10 μg/mL AFPIII (AFP-10), 50 μg/mL AFPIII (AFP-50), and 100 μg/mL AFPIII (AFP-100), respectively. Spermatozoa motility, membrane integrity, acrosome integrity, mitochondrial function, distribution of phosphatidylserine, and formation of reactive oxygen species (ROS) were measured after the freezing and thawing process. The results showed that the spermatozoa motility, membrane integrity, acrosome integrity, and mitochondrial function were significantly higher in frozen spermatozoa using the extender containing 1 μg/mL AFPIII as compared with the other groups (p < 0.05). Furthermore, the extender supplemented with 1 μg/mL of AFPIII resulted in higher viable and lower nonviable spermatozoa compared with the other treated groups (p < 0.05), after staining using Annexin V-fluoresceine isothiocyanate (Annexin V-FITC) and Propidium Iodide. No significant differences were found between these groups in relation to viable cells with lower ROS production. In conclusion, the addition of AFPIII to the freezing extender improved the post-thaw quality of goat semen. The optimal concentration used in this study was 1 μg/mL. However, excessively high concentrations of AFPIII were unable to exhibit their cryoprotective effects on goat spermatozoa. However, the presence of AFPIII cannot mitigate oxidative stress caused by the freezing and thawing process. In addition, in vitro fertilization or artificial insemination can further evaluate the effects of AFPIII on frozen-thawed goat spermatozoa.
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Affiliation(s)
- Chunrong Lv
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
| | - Allai Larbi
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Sameeullah Memon
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Jiachong Liang
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
| | - Xiangwei Fu
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guoquan Wu
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
| | - Guobo Quan
- Department of Small Ruminant Research, Yunnan Animal Science and Veterinary Institute, Kunming, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
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12
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Sánchez-Rubio F, Soria-Meneses PJ, Jurado-Campos A, Bartolomé-García J, Gómez-Rubio V, Soler AJ, Arroyo-Jimenez MM, Santander-Ortega MJ, Plaza-Oliver M, Lozano MV, Garde JJ, Fernández-Santos MR. Nanotechnology in reproduction: Vitamin E nanoemulsions for reducing oxidative stress in sperm cells. Free Radic Biol Med 2020; 160:47-56. [PMID: 32768571 DOI: 10.1016/j.freeradbiomed.2020.07.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/12/2020] [Accepted: 07/17/2020] [Indexed: 01/12/2023]
Abstract
Vitamin E is considered a powerful biological antioxidant; however, its characteristics such as high hydrophobicity and low stability limit its application. We propose to use nanotechnology as an innovative tool in spermatology, formulating nanoemulsions (NE) that accommodate vitamin E, protecting it from oxidation and promoting its release into the medium. The protective effect of the NE against oxidative stress was assessed in red deer epididymal sperm incubated at 37 °C. Cryopreserved sperm from eleven stags were thawed and extended to 400 × 106 sperm/ml in Bovine Gamete Medium (BGM). Once aliquoted, the samples were supplemented with the NE at different concentrations (0, 6 and 12 mM), with or without induced oxidative stress (100 μM Fe2+/ascorbate). The samples were evaluated after 0, 2 and 4 h of incubation at 37 °C. Motility (CASA), viability, mitochondrial membrane potential, acrosomal status, lipoperoxidation (C11 BODIPY 581/591), intracellular reactive oxygen species (ROS) production and DNA status (SCSA®) were assessed. After 2 and 4 h of incubation, the NE were able to prevent the deleterious effects of oxidative stress, thus improving total and progression motility (P ˂0.05). Moreover, the highest concentration tested (12 mM) improved almost every sperm kinematic variable (P ˂0.05) and preserved sperm viability in samples subjected to oxidative stress. In addition, 12 mM of NE protected the acrosomes integrity, maintained and protected mitochondrial activity, prevented sperm lipoperoxidation and reduced ROS production (P ˂0.05) in samples subjected to oxidative stress. This work indicates for the first time that vitamin E formulated in NE could be a new approach against sperm oxidative damage. This could be highly relevant for sperm physiology preservation in the context of assisted reproduction techniques.
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Affiliation(s)
- F Sánchez-Rubio
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain; Servicio de Farmacia Hospitalaria, Complejo Hospitalario Universitario de Albacete, GAI, Albacete, Spain
| | | | | | | | | | - A J Soler
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain
| | - M M Arroyo-Jimenez
- Cellular Neurobiology and Molecular Chemistry of the Central Nervous System Group, Faculty of Pharmacy, UCLM, Albacete, Spain; Regional Centre of Biomedical Research (CRIB), UCLM, Albacete, Spain
| | - M J Santander-Ortega
- Cellular Neurobiology and Molecular Chemistry of the Central Nervous System Group, Faculty of Pharmacy, UCLM, Albacete, Spain; Regional Centre of Biomedical Research (CRIB), UCLM, Albacete, Spain
| | - M Plaza-Oliver
- Cellular Neurobiology and Molecular Chemistry of the Central Nervous System Group, Faculty of Pharmacy, UCLM, Albacete, Spain; Regional Centre of Biomedical Research (CRIB), UCLM, Albacete, Spain
| | - M V Lozano
- Cellular Neurobiology and Molecular Chemistry of the Central Nervous System Group, Faculty of Pharmacy, UCLM, Albacete, Spain; Regional Centre of Biomedical Research (CRIB), UCLM, Albacete, Spain.
| | - J J Garde
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain
| | - M R Fernández-Santos
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain; Faculty of Pharmacy, UCLM, Albacete, Spain.
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Uccheddu S, Pintus E, Garde JJ, Fleba L, Muzzeddu M, Pudda F, Bogliolo L, Strina A, Nieddu S, Ledda S. Post-mortem recovery, in vitro maturation and fertilization of fallow deer (Dama dama, Linnaeus 1758) oocytes collected during reproductive and no reproductive season. Reprod Domest Anim 2020; 55:1294-1302. [PMID: 32654335 DOI: 10.1111/rda.13773] [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: 05/14/2020] [Accepted: 07/07/2020] [Indexed: 11/28/2022]
Abstract
Habitat degradation leads to small and fragmented populations, lower genetic variability and fertility overtime. Assisted reproductive techniques represent important tools to cope with the dramatic loss of biodiversity. Fallow deer (Dama dama), beyond its high commercial value and wide distribution, may represent the most suitable model to study endangered cervids. In this study, oocytes were recovered post-mortem from fallow deer during the breeding and no breeding seasons and were in vitro matured (IVM). The ability of cryopreserved thawed sperm samples recovered by electroejaculation from four adult males was tested by in vitro fertilization of IVM oocytes. The number of oocytes collected per ovary did significantly vary across seasons from 6.2 ± 0.92 during breeding season to 10.4 ± 1.26 during no breeding season (p = .006). Oocytes collected during the breeding season showed higher in vitro fertilization rate compared to the no breeding season (p = .045). However, no embryos reached the blastocyst stage. Semen samples obtained by electroejaculation were successfully cryopreserved, although the cryopreservation process negatively affected most kinetic parameters, mainly at 2 hr post-thawing. Moreover, the percentage of rapid spermatozoa significantly decreased between fresh samples and at 2 hr post-thawing, whereas the percentage of slow spermatozoa increased across the same period (p < .05). Our study provides the logistic steps for the application of assisted reproductive techniques in fallow deer and might be of great interest for genetic resource bank planning.
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Affiliation(s)
- Stefania Uccheddu
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Eliana Pintus
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech Republic
| | | | | | | | | | - Luisella Bogliolo
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Alessandro Strina
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Stefano Nieddu
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Sergio Ledda
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
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Kumaresan A, Das Gupta M, Datta TK, Morrell JM. Sperm DNA Integrity and Male Fertility in Farm Animals: A Review. Front Vet Sci 2020; 7:321. [PMID: 32637425 PMCID: PMC7317013 DOI: 10.3389/fvets.2020.00321] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022] Open
Abstract
The accurate prediction of male fertility is of major economic importance in the animal breeding industry. However, the results of conventional semen analysis do not always correlate with field fertility outcomes. There is evidence to indicate that mammalian fertilization and subsequent embryo development depend, in part, on the inherent integrity of the sperm DNA. Understanding the complex packaging of mammalian sperm chromatin and assessment of DNA integrity could potentially provide a benchmark in clinical infertility. In the era of assisted reproduction, especially when in-vitro fertilization or gamete intrafallopian transfer or intracytoplasmic sperm injection is used, assessment of sperm DNA integrity is important because spermatozoa are not subjected to the selection process occurring naturally in the female reproductive tract. Although sperm DNA integrity testing measures a significant biological parameter, its precise role in the infertility evaluation in farm animals remains unclear. In this review, the earlier findings on sperm DNA integrity in relation to male fertility are compiled and analyzed. Furthermore, the causes and consequences of sperm DNA damage are described, together with a review of advances in methods for detection of sperm DNA damage, and the prognostic value of sperm DNA quality on male fertility.
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Affiliation(s)
- Arumugam Kumaresan
- Theriogenology Laboratory, Southern Regional Station of National Dairy Research Institute (ICAR), Bengaluru, India
| | - Mohua Das Gupta
- Theriogenology Laboratory, Southern Regional Station of National Dairy Research Institute (ICAR), Bengaluru, India
| | - Tirtha Kumar Datta
- Animal Genomics Laboratory, National Dairy Research Institute (ICAR), Karnal, India
| | - Jane M. Morrell
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
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15
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Heidari M, Darbandi M, Darbandi S, Sadeghi MR. Comparing the different methods of sperm chromatin assessment concerning ART outcomes. Turk J Urol 2020; 46:348-353. [PMID: 32479255 DOI: 10.5152/tud.2020.19262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 04/23/2020] [Indexed: 01/02/2023]
Abstract
OBJECTIVE Sperm DNA fragmentation and maturation directly interferes with reproductive efficiency. Although there are several methods for assessing sperm DNA integrity, however, many of them are laborious and require high-precision equipment in the clinics. Thus, evaluating economic and reliable methods to prepare suitable sperm for assisted reproductive technologies without DNA damage is critical. MATERIAL AND METHODS A total of 114 semen samples were collected and analyzed using computer-assisted semen analysis. The DNA fragmentation index (DFI) of all samples was evaluated by two methods of sperm chromatin dispersion (SCD) and sperm chromatin structure assay (SCSA). Besides, chromatin maturation index (CMI) was assessed by three methods including aniline blue (AB)-sperm chromatin maturation assay (SCMA), fluorescence microscopic chromomycin A3 (fmCMA3), and flow cytometric CMA3 (fcCMA3). RESULTS The result showed that the DFI had no statistically significant differences (p>0.05) between SCSA (26.98%±1.28%) and SCD (27.88%±1.278%), although SCD demonstrated a strong correlation with DNA maturity (p<0.001), which had not been seen in SCSA. Besides, the CMI demonstrated significant differences (p<0.001) when assessed by AB-SCMA (14.86%±0.65%), fmCMA3 (29.18%±1.01%), and fcCMA3 (22.45%±0.62%). Among these, only the fmCMA3 showed a significant correlation with semen parameters (p<0.01) and embryo development (p<0.001). CONCLUSION It seems that SCD and fmCMA3 were more accessible, affordable, and reliable tests for assessing DFI and CMI. It appeared these two methods may be the best choices for evaluating sperm DNA integrity in clinics.
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Affiliation(s)
- Mahnaz Heidari
- Reproductive Biotechnology Research Center, Avicenna Research Institute (ARI), ACERCR, Tehran, Iran
| | - Mahsa Darbandi
- Reproductive Biotechnology Research Center, Avicenna Research Institute (ARI), ACERCR, Tehran, Iran
| | - Sara Darbandi
- Reproductive Biotechnology Research Center, Avicenna Research Institute (ARI), ACERCR, Tehran, Iran
| | - Mohammad Reza Sadeghi
- Reproductive Biotechnology Research Center, Avicenna Research Institute (ARI), ACERCR, Tehran, Iran
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16
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Tamargo C, Hidalgo CO, Caamaño JN, Salman A, Fueyo C, Arija C, Fernández Á, Merino MJ, Martínez-Pastor F. Assessment of a germplasm bank for the autochthonous cattle breed Asturiana de la Montaña: Extender (Biociphos vs. BIOXCell) affected sperm quality but not field fertility. Reprod Domest Anim 2020; 54 Suppl 4:90-93. [PMID: 31625236 DOI: 10.1111/rda.13502] [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: 04/27/2019] [Revised: 06/22/2019] [Accepted: 06/28/2019] [Indexed: 11/30/2022]
Abstract
Semen banking is critical to preserving rare and autochthonous breeds. However, protocols can change with time, leaving heterogeneous semen batches. The objective of this study was to assess differences in sperm quality and field fertility. We report differences between batches frozen with the Biociphos and BIOXCell extenders in the Asturiana de la Montaña cryobank (autochthonous and endangered breed, Northern Spain). Doses from 48 bulls were analysed by CASA and flow cytometry. The 85-days non-return rates from AI records were used to assess the fertility of 23,853 AI. BIOXCell showed higher quality post-thawing. Differences increased after a 5-hr incubation at 37°C, and Biociphos yielded doses with lower resilience. Field fertility did not differ between extenders (Biociphos: 57.4% ± 1.2; BIOXCell: 56.6% ± 3.0), possibly because of AI protocols compensating for differences in quality. However, this needs to be confirmed by controlled intervention studies. In conclusion, batches frozen with Biociphos may require specific strategies for compensating for the lower sperm quality. Regular surveys and evaluation of cryobank procedures may be useful to characterizing stored batches and defining strategies to guaranteeing success in their future use.
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Affiliation(s)
- Carolina Tamargo
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Carlos O Hidalgo
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Jose Néstor Caamaño
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Amer Salman
- INDEGSAL and IMAPOR, Universidad de León, León, Spain
| | - Carmen Fueyo
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | | | - Ángel Fernández
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - María J Merino
- Selección y Reproducción Animal-SERIDA, Principado de Asturias, Gijón, Spain
| | - Felipe Martínez-Pastor
- INDEGSAL and IMAPOR, Universidad de León, León, Spain.,Department of Molecular Biology (Cell Biology), Universidad de León, León, Spain
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Eidenberger F, Huber KL, Fuchs P, Simkovicova N, Imhof M. Measured with Sperm Chromatin Dispersion (SCD) Technique: Will DNA Integrity in Spermatozoa Increase After Micronutrient Supplementation? Comparative Controlled Study. FERTILITY & REPRODUCTION 2019. [DOI: 10.1142/s2661318219500142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: An elevated DNA Fragmentation Index (DFI) has been associated with male infertility; therefore measuring the sperm nuclear DNA integrity appears to be useful in predicting the ability of spermatozoa to fertilize oocytes. Aim: To evaluate the effect of micronutrient supplementation over DFI values in subfertile men. Methods: This was a retrospective/comparative study that included a total of 306 subfertile males consulting the clinic from March 2011 to November 2017, who had performed the Sperm Chromatin Dispersion test (SCD) — a method used to detect DNA fragmentation — along with the initial semen analysis. Of the included population, [Formula: see text] 146 had received two daily oral capsules of a standardized combined micronutrient compound ([Formula: see text], Lenus Pharma, Vienna, Austria) for three months plus lifestyle change (study group). Each capsule contains L-carnitine, L-arginine, coenzyme Q10, zinc, vitamin E, folic acid, glutathione and selenium. Those who did not receive the active treatment ([Formula: see text] 160) but only engaged with lifestyle changes were considered controls. The SCD test was performed in both groups at baseline and after 3 months. Results: For the first statistical analysis, patients with an initial mean DFI of >15% were considered ([Formula: see text] 66 [37 were study and 29 were controls]). After 3 months, both groups displayed a significant decrease of mean DFI values. However, this decrease was more evident in the study group as compared to controls (10.54% vs. 14.48%, [Formula: see text] 0.05; [Formula: see text] 0.013). For the second statistical approach the entire population was considered ([Formula: see text] 306). After 3 months, only the study group displayed a significant decrease of the mean initial DFI value (10.16% to 6.49%, [Formula: see text] < 0.0001); decrease that was more evident as compared to controls (6.49% vs. 8.82%, [Formula: see text] 0.05; [Formula: see text] 0.000020). Conclusions: Among subfertile men with a DFI >15%, both regimes significantly decreased sperm DNA fragmentation; however, when any baseline DFI value was considered, only treatment with the active standardized micronutrient compound achieved a significant better result.
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Affiliation(s)
- Fiona Eidenberger
- Karl Landsteiner Institute for Cell-Focused Therapy in Gynecology, Wiener Ring 3–5, 2100 Korneuburg, Vienna, Austria
| | - Kim-Lien Huber
- Medical Students at the Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Patricia Fuchs
- Medical Students at the Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Nikola Simkovicova
- Medical Students at the Medical University of Vienna, Spitalgasse 23, 1090 Vienna, Austria
| | - Martin Imhof
- Karl Landsteiner Institute for Cell-Focused Therapy in Gynecology, Wiener Ring 3–5, 2100 Korneuburg, Vienna, Austria
- Department of Obstetrics and Gynecology, General Public Hospital Korneuburg, Wiener Ring 3–5, 2100 Korneuburg, Vienna, Austria
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18
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Lv C, Larbi A, Wu G, Hong Q, Quan G. Improving the quality of cryopreserved goat semen with a commercial bull extender supplemented with resveratrol. Anim Reprod Sci 2019; 208:106127. [PMID: 31405456 DOI: 10.1016/j.anireprosci.2019.106127] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/17/2019] [Accepted: 07/15/2019] [Indexed: 01/22/2023]
Abstract
The purpose of the current study was to evaluate the effects of resveratrol (RSV) on the quality of frozen-thawed goat sperm. Semen samples from four bucks were divided into five aliquots and diluted with a commercial bull semen extender containing: no antioxidant (RSV-0, control), 10 μM RSV (RSV-10), 50 μM RSV (RSV-50), 100 μM RSV (RSV-100) and 250 μM RSV (RSV-250). After thawing, sperm motility, abnormal morphology, membrane and acrosome integrity, mitochondrial activity, phosphatidylserine (PS) distribution, and oxidative stress were evaluated. The results indicated that in comparison with the control, when the concentration of RSV was 10 or 50 μM, the total motility, progressive motility, membrane and acrosome integrity, and mitochondrial activity of post-thaw spermatozoa was greater (P < 0.05). Additionally, the use of extenders containing RSV-10 or RSV-50 resulted in a greater percentage of viable spermatozoa as compared to the other groups (P < 0.05). Importantly, there were more viable spermatozoa (49.61 ± 0.61%) and less non-viable spermatozoa (49.16 ± 1.01%) in the RSV-50 group compared to the other extenders (P < 0.05). Furthermore, the use of the extenders containing RSV-10 and -50 resulted in a reduction in ROS production in frozen-thawed spermatozoa as compared to the control (P < 0.05). There, however, was no difference among extenders for abnormal morphology and PS distribution. In conclusion, supplementation with RSV, at a concentration of 10 or 50 μM in the semen extender, can improve the post-thaw goat sperm quality, which may occur as a consequence of inhibition of ROS generation.
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Affiliation(s)
- Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong county, Kunming city, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming city, China
| | - Allai Larbi
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong county, Kunming city, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming city, China
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong county, Kunming city, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming city, China
| | - Qionghua Hong
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong county, Kunming city, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming city, China
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong county, Kunming city, Yunnan province, China; Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming city, China.
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Sánchez-Rubio F, Fernández-Santos MR, Castro-Vázquez L, García-Álvarez O, Maroto-Morales A, Soler AJ, Martínez-Pastor F, Garde JJ. Cinnamtannin B-1, a novel antioxidant for sperm in red deer. Anim Reprod Sci 2018; 195:44-52. [PMID: 29776697 DOI: 10.1016/j.anireprosci.2018.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/19/2018] [Accepted: 05/03/2018] [Indexed: 01/14/2023]
Abstract
Cinnamtannin B-1 (CNB-1) is a naturally occurring trimeric A-type proanthocyanidin contained in several plants such as cinnamon (Cinnamomum zeylanicum). It is considered to be a potent antioxidant. The protective effect of CNB-1 against oxidative stress was assessed in red deer epididymal sperm incubated at 37 °C. Cryopreserved sperm from six stags were thawed, pooled and extended to 400 × 106 sperm/ml in BGM (bovine gamete medium). After being aliquoted, the samples were supplemented with different concentrations of CNB-1 (0, 0.1, 1, 10 and 100 μg/mL), with or without induced oxidative stress (100 μM Fe2+/ascorbate). The samples were evaluated after 0, 2 and 4 h of incubation at 37 °C. This experiment was replicated six times. Spermmotility (CASA), viability, mitochondrial membrane potential, acrosomal status, lipoperoxidation (C11 BODIPY 581/591), intracellular reactive oxygen species (ROS) production and DNA status (TUNEL) were assessed. After 4 h of incubation, CNB-1 prevented the deleterious effects of oxidative stress, thus improved sperm progressivity and velocity (P<0.05). Furthermore, 1 and 10 μM CNB-1 improved sperm linearity, even when compared to those samples that had not been subjected to oxidative stress (P<0.05). The greatest concentration, 100 μM, prevented sperm lipoperoxidation and reduced ROS production in samples subjected to oxidative stress.
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Affiliation(s)
- F Sánchez-Rubio
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain; Servicio de Farmacia. Complejo Hospitalario Universitario de Albacete. GAI. Albacete, Spain
| | - M R Fernández-Santos
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain; Faculty of Pharmacy (UCLM), Albacete, Spain.
| | | | - O García-Álvarez
- Biomedical Center, Medical Faculty in Pilsen, Pilsen, Czech Republic
| | | | - A J Soler
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain
| | - F Martínez-Pastor
- Department of Molecular Biology (Cell Biology) and Institute for Animal Health and Cattle Development (INDEGSAL), University of León, León, Spain
| | - J J Garde
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain
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Malo C, Crichton EG, Morrell JM, Pukazhenthi BS, Johannisson A, Splan R, Skidmore JA. Colloid centrifugation of fresh semen improves post-thaw quality of cryopreserved dromedary camel spermatozoa. Anim Reprod Sci 2018. [PMID: 29525206 DOI: 10.1016/j.anireprosci.2018.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Colloids have been successfully used in a number of species to improve sperm populations for IVF and for cryopreservation The usefulness of Single Layer Centrifugation (SLC) for freezing dromedary camel spermatozoa in two different extenders was evaluated by examining the motility, viability, acrosome status, DNA integrity, and ability of cryopreserved sperm to penetrate oocytes in vitro in a heterologus IVF system. Two ejaculates from each of five males were divided into four aliquots: two were processed by SLC (selected) while two were centrifuged without colloid (control). Pellets were cryopreserved in Green Buffer or INRA-96® containing 3% glycerol and evaluated at 0 and 1 h post thawed. The SLC improved post-thaw total and progressive motility at 0 (both P < 0.0001) and 1 (P < 0.001; P < 0.01, respectively) h, and STR (both P < 0.05) and BCF (both P < 0.001) at 0 h. Sperm viability and acrosome integrity (both P < 0.001) were improved at both time points. Sperm frozen in Green Buffer had greater total and progressive motilities at 0 (both P < 0.001) and 1 (both P < 0.001) h than INRA-96® samples. Spermatozoa in Green Buffer also had a greater VAP, VCL and VSL at 0 h and improved viability and acrosome integrity at 0 h (P < 0.05; P = 0.001, respectively) and 1 h (P < 0.05; P < 0.001, respectively). Viability of SLC spermatozoa was improved in Green Buffer at 1 h (P < 0.05). Oocyte penetration (P < 0.05) and pronuclear formation (P < 0.01) were greater with SLC-selected spermatozoa than non-selected spermatozoa, regardless of extender. No difference was observed between treatments or extenders in the mean number of spermatozoa per oocyte penetrated. The SLC spermatozoa had less (P < 0.01) DNA fragmentation compared to controls. The DNA fragmentation was moderately and negatively correlated with penetration (r = -0.4162; P = 0.02) and pronuclear formation (r = -0.3390; P < 0.01). In conclusion, colloid centrifugation of spermatozoa and cryopreservation in Green Buffer improves post thaw motility variables and IVF performance of dromedary camel spermatozoa.
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Affiliation(s)
- Clara Malo
- Camel Reproduction Center, P.O. Box 79914, Dubai, United Arab Emirates.
| | | | - Jane M Morrell
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Box 7054, SE-75007 Uppsala, Sweden
| | - Budhan S Pukazhenthi
- Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA 22630, USA
| | - Anders Johannisson
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Box 7054, SE-75007 Uppsala, Sweden
| | - Rebecca Splan
- Department of Animal Science, Sul Ross State University, Alpine, TX 79832, USA
| | - Julian A Skidmore
- Camel Reproduction Center, P.O. Box 79914, Dubai, United Arab Emirates
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Ortiz I, Urbano M, Dorado J, Morrell J, Al-Essawe E, Johannisson A, Hidalgo M. Comparison of DNA fragmentation of frozen-thawed epididymal sperm of dogs using Sperm Chromatin Structure Analysis and Sperm Chromatin Dispersion test. Anim Reprod Sci 2017; 187:74-78. [DOI: 10.1016/j.anireprosci.2017.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 09/19/2017] [Accepted: 10/06/2017] [Indexed: 11/26/2022]
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Effect of bovine sperm chromatin integrity evaluated using three different methods on in vitro fertility. Theriogenology 2017; 107:142-148. [PMID: 29154161 DOI: 10.1016/j.theriogenology.2017.11.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 01/17/2023]
Abstract
In vitro fertility potential of individual bulls is still relatively uncharacterized. Classical sperm analysis does not include the evaluation of all sperm characteristics and thus, some cell compartments could be neglected. In humans, sperm DNA integrity has already proven to have major influence in embryo development and assisted reproduction techniques successfully. In bovine, some studies already correlated chromatin integrity with field fertility. However, none of those have attempted to relate DNA assessment approaches such as chromatin deficiency (CMA3), chromatin stability (SCSA; AO+) and DNA fragmentation (COMET assay) to predict in vitro bull fertility. To this purpose, we selected bulls with high and low in vitro fertility (n = 6/group), based on embryo development rate (blastocyst/cleavage rate). We then performed CMA3, SCSA test and COMET assay to verify if the difference of in vitro fertility may be related to DNA alterations evaluated by these assays. For the three tests performed, our results showed only differences in the percentage of cells with chromatin deficiency (CMA3+; high: 0.19 ± 0.03 vs low: 0.04 ± 0.04; p = 0.03). No difference for chromatin stability and any of COMET assay categories (grade I to grade IV) was observed between high and low in vitro fertility bulls. A positive correlation between AO + cells and grade IV cells was found. Despite the difference between groups in CMA3 analysis, our results suggest that protamine deficiency in bovine spermatozoa may not have a strong biological impact to explain the difference of in vitro fertility between the bulls used in this study.
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Urbano M, Ortiz I, Dorado J, Hidalgo M. Identification of sperm morphometric subpopulations in cooled-stored canine sperm and its relation with sperm DNA integrity. Reprod Domest Anim 2017; 52:468-476. [PMID: 28220615 DOI: 10.1111/rda.12935] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/03/2017] [Indexed: 11/30/2022]
Abstract
The aims of this study were to (i) identify different morphometric subpopulations in cooled-stored canine sperm and their patterns of distribution during cool-storage for up to 240 hr and (ii) determine whether or not morphometric sperm subpopulations (sP) are related to sperm DNA integrity. For that purpose, morphometric parameters were analysed by computer-assisted sperm analysis (CASA) and sperm DNA fragmentation (sDFi) using the sperm Halomax test. Four morphometric sperm heads subpopulations were identified: sP1 (large and rounded), sP2 (large and elongated), sP3 (small and rounded) and sP4 (small and elongated). sP1 was the most predominant subpopulation for up to 72 hr and thereafter sP3 increased progressively. sDFi increased after 48 hr of cool-storage. Although sP3 showed a positive correlation with sDFi, and both increased over time, it could not be ensured that only the sperm with fragmented DNA are accumulated in sP3. In conclusion, sP3 and DNA fragmentation increased progressively during cool-storage, becoming possible indicators of sperm damage. However, it cannot be concluded that sP3 only contains sperm with fragmented DNA.
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Affiliation(s)
- M Urbano
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
| | - I Ortiz
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
| | - J Dorado
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
| | - M Hidalgo
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
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Fattah A, Sharafi M, Masoudi R, Shahverdi A, Esmaeili V, Najafi A. l -Carnitine in rooster semen cryopreservation: Flow cytometric, biochemical and motion findings for frozen-thawed sperm. Cryobiology 2017; 74:148-153. [DOI: 10.1016/j.cryobiol.2016.10.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 10/17/2016] [Accepted: 10/27/2016] [Indexed: 10/20/2022]
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Evenson DP. The Sperm Chromatin Structure Assay (SCSA(®)) and other sperm DNA fragmentation tests for evaluation of sperm nuclear DNA integrity as related to fertility. Anim Reprod Sci 2016; 169:56-75. [PMID: 26919909 DOI: 10.1016/j.anireprosci.2016.01.017] [Citation(s) in RCA: 204] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/13/2016] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
Abstract
Thirty-five years ago the pioneering paper in Science (240:1131) on the relationship between sperm DNA integrity and pregnancy outcome was featured as the cover issue showing a fluorescence photomicrograph of red and green stained sperm. The flow cytometry data showed a very significant difference in sperm DNA integrity between fertile and subfertile bulls and men. This study utilized heat (100°C, 5min) to denature DNA at sites of DNA strand breaks followed by staining with acridine orange (AO) and measurements of 5000 individual sperm of green double strand (ds) DNA and red single strand (ss) DNA fluorescence. Later, the heat protocol was changed to a low pH protocol to denature the DNA at sites of strand breaks; the heat and acid procedures produced the same results. SCSA data are very advantageously dual parameter with 1024 channels (degrees) of both red and green fluorescence. Hundreds of publications on the use of the SCSA test in animals and humans have validated the SCSA as a highly useful test for determining male breeding soundness. The SCSA test is a rapid, non-biased flow cytometer machine measurement providing robust statistical data with exceptional precision and repeatability. Many genotoxic experiments showed excellent dose response data with very low coefficient of variation that further validated the SCSA as being a highly powerful assay for sperm DNA integrity. Twelve years following the introduction of the SCSA test, the terminal deoxynucleotidyl transferase-mediated fluorescein-dUTP nick end labelling (TUNEL) test (1993) for sperm was introduced as the only other flow cytometric assay for sperm DNA fragmentation. However, the TUNEL test can also be done by light microscopy with much less statistical robustness. The COMET (1998) and Sperm Chromatin Dispersion (SCD; HALO) (2003) tests were introduced as light microscope tests that don't require a flow cytometer. Since these tests measure only 50-200 sperm per sample, they suffer from the lack of the statistical robustness of flow cytometric measurements. Only the SCSA test has an exact standardization of a fixed protocol. The many variations of the other tests make it very difficult to compare data and thresholds for risk of male factor infertility. Data from these four sperm DNA fragmentation tests plus the light microscope acridine orange test (AOT) are correlated to various degrees.
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Affiliation(s)
- Donald P Evenson
- SCSA Diagnostics, Inc., Brookings, SD, United States; South Dakota State University, Brookings, SD, United States; University of South Dakota, Sanford Medical School, Dept. OB/GYN, Sioux Falls, SD, United States.
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INFERTILIDAD MASCULINA Y FRAGMENTACIÓN DEL ADN ESPERMÁTICO: UN PROBLEMA ACTUAL. TIP REVISTA ESPECIALIZADA EN CIENCIAS QUÍMICO-BIOLÓGICAS 2015. [DOI: 10.1016/j.recqb.2015.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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DNA integrity of canine spermatozoa during chill storage assessed by the sperm chromatin dispersion test using bright-field or fluorescence microscopy. Theriogenology 2015; 84:399-406. [DOI: 10.1016/j.theriogenology.2015.03.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 03/10/2015] [Accepted: 03/13/2015] [Indexed: 11/21/2022]
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Castellanos P, del Olmo E, Fernández-Santos MR, Rodríguez-Estival J, Garde JJ, Mateo R. Increased chromatin fragmentation and reduced acrosome integrity in spermatozoa of red deer from lead polluted sites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 505:32-38. [PMID: 25306093 DOI: 10.1016/j.scitotenv.2014.09.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/25/2014] [Accepted: 09/26/2014] [Indexed: 06/04/2023]
Abstract
Vertebrates are constantly exposed to a diffuse pollution of heavy metals existing in the environment, but in some cases, the proximity to emission sources like mining activity increases the risk of developing adverse effects of these pollutants. Here we have studied lead (Pb) levels in spermatozoa and testis, and chromatin damage and levels of endogenous antioxidant activity in spermatozoa of red deer (Cervus elaphus) from a Pb mining area (n=37) and a control area (n=26). Deer from the Pb-polluted area showed higher Pb levels in testis parenchyma, epididymal cauda and spermatozoa, lower values of acrosome integrity, higher activity of glutathione peroxidase (GPx) and higher values of DNA fragmentation (X-DFI) and stainability (HDS) in sperm than in the control area. These results indicate that mining pollution can produce damage on chromatin and membrane spermatozoa in wildlife. The study of chromatin fragmentation has not been studied before in spermatozoa of wildlife species, and the sperm chromatin structure assay (SCSA) has been revealed as a successful tool for this purpose in species in which the amount of sperm that can be collected is very limited.
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Affiliation(s)
- Pilar Castellanos
- Wildlife Toxicology Group, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, Ronda de Toledo s/n, 13071 Ciudad Real, Spain
| | - Enrique del Olmo
- SaBio, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, 02071 Albacete, Spain
| | - M Rocío Fernández-Santos
- SaBio, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, 02071 Albacete, Spain
| | - Jaime Rodríguez-Estival
- Wildlife Toxicology Group, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, Ronda de Toledo s/n, 13071 Ciudad Real, Spain
| | - J Julián Garde
- SaBio, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, 02071 Albacete, Spain
| | - Rafael Mateo
- Wildlife Toxicology Group, National Wildlife Research Institute (Instituto de Investigación en Recursos Cinegéticos, IREC), UCLM-CSIC-JCCM, Ronda de Toledo s/n, 13071 Ciudad Real, Spain.
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Ni W, Xiao S, Qiu X, Jin J, Pan C, Li Y, Fei Q, Yang X, Zhang L, Huang X. Effect of sperm DNA fragmentation on clinical outcome of frozen-thawed embryo transfer and on blastocyst formation. PLoS One 2014; 9:e94956. [PMID: 24733108 PMCID: PMC3986272 DOI: 10.1371/journal.pone.0094956] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 03/21/2014] [Indexed: 12/20/2022] Open
Abstract
During the last decades, many studies have shown the possible influence of sperm DNA fragmentation on assisted reproductive technique outcomes. However, little is known about the impact of sperm DNA fragmentation on the clinical outcome of frozen-thawed embryo transfer (FET) from cycles of conventional in vitro fertilization (IVF) and intra-cytoplasmic sperm injection (ICSI). In the present study, the relationship between sperm DNA fragmentation (SDF) and FET clinical outcomes in IVF and ICSI cycles was analyzed. A total of 1082 FET cycles with cleavage stage embryos (C-FET) (855 from IVF and 227 from ICSI) and 653 frozen-thawed blastocyst transfer cycles (B-FET) (525 from IVF and 128 from ICSI) were included. There was no significant change in clinical pregnancy, biochemical pregnancy and miscarriage rates in the group with a SDF >30% compared with the group with a SDF ≤30% in IVF and ICSI cycles with C-FET or B-FET. Also, there was no significant impact on the FET clinic outcome in IVF and ICSI when different values of SDF (such as 10%, 20%, 25%, 35%, and 40%) were taken as proposed threshold levels. However, the blastulation rates were significantly higher in the SDF ≤30% group in ICSI cycle. Taken together, our data show that sperm DNA fragmentation measured by Sperm Chromatin Dispersion (SCD) test is not associated with clinical outcome of FET in IVF and ICSI. Nonetheless, SDF is related to the blastocyst formation in ICSI cycles.
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Affiliation(s)
- Wuhua Ni
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shiquan Xiao
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiufang Qiu
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianyuan Jin
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chengshuang Pan
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yan Li
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qianjin Fei
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xu Yang
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Liya Zhang
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xuefeng Huang
- Reproductive Medical Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Urbano M, Dorado J, Ortiz I, Morrell JM, Demyda-Peyrás S, Gálvez MJ, Alcaraz L, Ramírez L, Hidalgo M. Effect of cryopreservation and single layer centrifugation on canine sperm DNA fragmentation assessed by the sperm chromatin dispersion test. Anim Reprod Sci 2013; 143:118-25. [PMID: 24210910 DOI: 10.1016/j.anireprosci.2013.10.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 09/24/2013] [Accepted: 10/16/2013] [Indexed: 11/15/2022]
Abstract
The aims of this study were: 1) to assess the effect of freezing and thawing on dog sperm DNA fragmentation index (sDFI) using the sperm chromatin dispersion test (SCDt); and 2) to determine whether or not the sperm selection by single layer centrifugation (SLC) using Androcoll-C improves sperm DNA longevity in SLC-selected frozen-thawed dog semen samples. Semen samples were collected from 4 dogs using digital manipulation. After collection, ejaculates were pooled and cryopreserved following a standard protocol. Sperm motility and morphology were assessed before freezing and after thawing as a control for the cryopreservation method used. In experiment 1, sDFI was analyzed immediately before freezing and after thawing (baseline values), showing no significant differences between fresh and frozen-thawed semen samples. In experiment 2, frozen-thawed semen samples were processed or not by SLC using Androcoll-C and longevity of DNA were assessed in terms of sDFI after 24h of in vitro incubation at physiological temperature (38°C). The results showed low values of sDFI in SLC-selected semen in comparison to unselected samples. In conclusion, no effect of cryopreservation was observed on baseline values of dog sperm DNA fragmentation. Additionally, SLC-selection using Androcoll-C improved longevity of frozen-thawed sperm DNA assessed by the SCDt.
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Affiliation(s)
- M Urbano
- Animal Reproduction Group, Department of Animal Medicine and Surgery, University of Cordoba, Cordoba, Spain
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Zanganeh Z, Zhandi M, Zare-Shahneh A, Najafi A, Mahdi Nabi M, Mohammadi-Sangcheshmeh A. Does rosemary aqueous extract improve buck semen cryopreservation? Small Rumin Res 2013. [DOI: 10.1016/j.smallrumres.2013.05.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pawar K, Kaul G. Toxicity of titanium oxide nanoparticles causes functionality and DNA damage in buffalo (Bubalus bubalis) sperm in vitro. Toxicol Ind Health 2012; 30:520-33. [PMID: 23064765 DOI: 10.1177/0748233712462475] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present study has examined the effect of different concentrations (1 μg/ml, 10 μg/ml and 100 μg/ml) of titanium oxide (TiO2) nanoparticles (NPs) (<100 nm) on viability, membrane integrity, capacitation status and DNA integrity of buffalo spermatozoa. Characterization of NPs was done by the transmission electron microscopy (TEM) and dynamic light scattering (DLS). Sperm chromatin dispersion (SCD) test and acridine orange test (AOT) were employed to detect DNA fragmentation in sperm treated with NPs. There was significant (p < 0.05) decrease in cell viability and membrane integrity (assessed by enzyme leakage) at 6 h of incubation with NPs. However, significant (p < 0.05) increase in sperm capacitation was observed for TiO2 NP albeit at lower concentrations. In DNA fragmentation assay, there was dose-dependent increase in the DNA fragmentation (r = 0.96). Ultrathin cross-sections revealed TiO2 NPs inside head and plasma membrane of the buffalo spermatozoa as assessed by TEM. These studies suggest that TiO2 NPs may have cytotoxic effect on buffalo spermatozoa by affecting sperm functionality and causing high amount of DNA fragmentations.
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Affiliation(s)
- Kamlesh Pawar
- Biochemistry Department, National Dairy Research Institute, Karnal, Haryana, India
| | - Gautam Kaul
- Biochemistry Department, National Dairy Research Institute, Karnal, Haryana, India
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Minervini F, Guastamacchia R, Pizzi F, Dell’Aquila ME, Barile VL. Assessment of Different Functional Parameters of Frozen-Thawed Buffalo Spermatozoa by Using Cytofluorimetric Determinations. Reprod Domest Anim 2012; 48:317-24. [DOI: 10.1111/j.1439-0531.2012.02152.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pérez-Cerezales S, Miranda A, Gutiérrez-Adán A. Comparison of four methods to evaluate sperm DNA integrity between mouse caput and cauda epididymidis. Asian J Androl 2011; 14:335-7. [PMID: 22002436 DOI: 10.1038/aja.2011.119] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
It is well known that transit through the epididymis involves an increase in the compaction of sperm chromatin, which acquires fully condensed status at the caput epididymidis. The purpose of this study was to compare the terminal deoxyribonucleotidyl transferase-mediated dUTP nick end-labelling (TUNEL) assay, the comet assay, the sperm chromatin structure assay (SCSA) and the sperm chromatin dispersion (SCD) test by analysing spermatozoa from the caput and cauda epididymidis in order to demonstrate the ability of each technique to discriminate between different degrees of sperm maturity related to chromatin compaction and DNA fragmentation. Our results suggest that some populations of DNA-fragmented spermatozoa associated with immature sperm can only be identified using the comet assay and the SCSA but not with the SCD test or the TUNEL assay.
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Affiliation(s)
- Serafín Pérez-Cerezales
- Department of Animal Reproduction, National Institute for Agricultural and Food Research and Technology, Madrid 28040, Spain.
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Domínguez-Rebolledo AE, Martínez-Pastor F, Bisbal AF, Ros-Santaella JL, García-Álvarez O, Maroto-Morales A, Soler AJ, Garde JJ, Fernández-Santos MR. Response of Thawed Epidi dymal Red Deer Spermatozoa to Increasing Concentrations of Hydrogen Peroxide, and Importance of Individual Male Variability. Reprod Domest Anim 2011; 46:393-403. [DOI: 10.1111/j.1439-0531.2010.01677.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Martínez-Pastor F, Mata-Campuzano M, Álvarez-Rodríguez M, Álvarez M, Anel L, De Paz P. Probes and Techniques for Sperm Evaluation by Flow Cytometry. Reprod Domest Anim 2010; 45 Suppl 2:67-78. [DOI: 10.1111/j.1439-0531.2010.01622.x] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sperm quality evaluation in Solea senegalensis during the reproductive season at cellular level. Theriogenology 2009; 72:1251-61. [DOI: 10.1016/j.theriogenology.2009.07.021] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2009] [Revised: 07/13/2009] [Accepted: 07/29/2009] [Indexed: 11/22/2022]
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