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Ruiz-Díaz S, Luongo C, Fuentes-Albero MC, Abril-Sánchez S, Sánchez-Calabuig MJ, Barros-García C, De la Fe C, García-Galán A, Ros-Santaella JL, Pintus E, Garcia-Párraga D, García-Vázquez FA. Effect of temperature and cell concentration on dolphin (Tursiops truncatus) spermatozoa quality evaluated at different days of refrigeration. Anim Reprod Sci 2019; 212:106248. [PMID: 31864493 DOI: 10.1016/j.anireprosci.2019.106248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/23/2019] [Accepted: 11/21/2019] [Indexed: 10/25/2022]
Abstract
The use of cryopreserved dolphin spermatozoa facilitates the exchange of genetic material between aquatic parks and makes spermatozoa accessible to laboratories for studies to further our understanding of marine mammal reproduction. Sperm cryopreservation in the bottlenose dolphin (Tursiops truncatus) has been developed for the exchange of gametes within the ex situ population. The aim of this study was to develop an effective method for refrigeration of bottlenose dolphin spermatozoa diluted in a commercial extender (BTS). In Experiment 1, the effect of temperature (5 compared with 15 °C) on sperm quality was evaluated during 7 days of storage at 100 × 106 spermatozoa/ml. In Experiment 2, the effect of the storage concentration (100 × 106 compared with 20 × 106 spermatozoa/ml) on sperm quality was assessed during 7 days of storage at 5 °C. In Experiment 1, total motility (including % of rapid sperm) was greater at 5 than 15 °C. When the effect of storage concentration was evaluated (Experiment 2), total motility and ALH were greater at the higher storage concentration (100 × 106 spermatozoa/ml). For both experiments, values for viability, acrosome integrity, and normal morphology variables were consistent throughout the 7 days of refrigeration. In Experiment 3, a microbiological study was performed to evaluate the effect of the refrigeration temperature and days of storage on bacterial growth. The results of microbiological analysis indicated there was Staphylococcus aureus in some samples, however, there was no effect of temperature or days of refrigeration. In conclusion, bottlenose dolphin semen can be refrigerated for a short to medium period of storage and there is maintenance of functionality of sperm when stored at 100 × 106 spermatozoa/ml at 5 °C.
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Affiliation(s)
- S Ruiz-Díaz
- Department of Physiology, Faculty of Veterinary Science, University of Murcia, Campus Mare Nostrum, Spain
| | - C Luongo
- Department of Physiology, Faculty of Veterinary Science, University of Murcia, Campus Mare Nostrum, Spain
| | | | - S Abril-Sánchez
- Department of Physiology, Faculty of Veterinary Science, University of Murcia, Campus Mare Nostrum, Spain
| | - M J Sánchez-Calabuig
- Department of Animal Reproduction, INIA, Madrid, Spain; Department of Medicine and Surgery, Faculty of Veterinary Science, Madrid, Spain
| | - C Barros-García
- Biology Department, Avanqua-Oceanogràfic S.L, 46013, Valencia, Spain
| | - C De la Fe
- Ruminant Health Research Group, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - A García-Galán
- Ruminant Health Research Group, Faculty of Veterinary Sciences, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Campus de Espinardo s/n., 30100, Murcia, Spain
| | - J L Ros-Santaella
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha 6-Suchdol, Czech Republic
| | - E Pintus
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha 6-Suchdol, Czech Republic
| | - D Garcia-Párraga
- Biology Department, Avanqua-Oceanogràfic S.L, 46013, Valencia, Spain; Research Department, Fundación Oceanogràfic, 46013, Valencia, Spain
| | - F A García-Vázquez
- Department of Physiology, Faculty of Veterinary Science, University of Murcia, Campus Mare Nostrum, Spain.
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Menezes EB, Velho ALC, Santos F, Dinh T, Kaya A, Topper E, Moura AA, Memili E. Uncovering sperm metabolome to discover biomarkers for bull fertility. BMC Genomics 2019; 20:714. [PMID: 31533629 PMCID: PMC6749656 DOI: 10.1186/s12864-019-6074-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 08/30/2019] [Indexed: 02/08/2023] Open
Abstract
Background Subfertility decreases the efficiency of the cattle industry because artificial insemination employs spermatozoa from a single bull to inseminate thousands of cows. Variation in bull fertility has been demonstrated even among those animals exhibiting normal sperm numbers, motility, and morphology. Despite advances in research, molecular and cellular mechanisms underlying the causes of low fertility in some bulls have not been fully elucidated. In this study, we investigated the metabolic profile of bull spermatozoa using non-targeted metabolomics. Statistical analysis and bioinformatic tools were employed to evaluate the metabolic profiles high and low fertility groups. Metabolic pathways associated with the sperm metabolome were also reported. Results A total of 22 distinct metabolites were detected in spermatozoa from bulls with high fertility (HF) or low fertility (LF) phenotype. The major metabolite classes of bovine sperm were organic acids/derivatives and fatty acids/conjugates. We demonstrated that the abundance ratios of five sperm metabolites were statistically different between HF and LF groups including gamma-aminobutyric acid (GABA), carbamate, benzoic acid, lactic acid, and palmitic acid. Metabolites with different abundances in HF and LF bulls had also VIP scores of greater than 1.5 and AUC- ROC curves of more than 80%. In addition, four metabolic pathways associated with differential metabolites namely alanine, aspartate and glutamate metabolism, β-alanine metabolism, glycolysis or gluconeogenesis, and pyruvate metabolism were also explored. Conclusions This is the first study aimed at ascertaining the metabolome of spermatozoa from bulls with different fertility phenotype using gas chromatography-mass spectrometry. We identified five metabolites in the two groups of sires and such molecules can be used, in the future, as key indicators of bull fertility.
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Affiliation(s)
- E B Menezes
- Department of Animal and Dairy Sciences, Mississippi State University, 4025 Wise Center, Mississippi State, MS, 39762, USA
| | - A L C Velho
- Department of Animal and Dairy Sciences, Mississippi State University, 4025 Wise Center, Mississippi State, MS, 39762, USA.,Department of Animal Sciences, Federal University of Ceara, Fortaleza, Brazil
| | - F Santos
- Department of Animal and Dairy Sciences, Mississippi State University, 4025 Wise Center, Mississippi State, MS, 39762, USA.,Department of Animal Sciences, Federal University of Ceara, Fortaleza, Brazil
| | - T Dinh
- Department of Animal and Dairy Sciences, Mississippi State University, 4025 Wise Center, Mississippi State, MS, 39762, USA
| | - A Kaya
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | - E Topper
- Alta Genetic Inc., Watertown, WI, USA
| | - A A Moura
- Department of Animal Sciences, Federal University of Ceara, Fortaleza, Brazil
| | - E Memili
- Department of Animal and Dairy Sciences, Mississippi State University, 4025 Wise Center, Mississippi State, MS, 39762, USA.
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Santos MC, Milani C, Zucchini P, Quirino CR, Romagnoli S, da Cunha ICN. Residual effect after salmon oil supplementation on semen quality and serum levels of testosterone in dogs. Reprod Domest Anim 2019; 54:1393-1399. [PMID: 31348842 DOI: 10.1111/rda.13530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/21/2019] [Indexed: 11/29/2022]
Abstract
The objective of present study was to evaluate the effects of oral supplementation of salmon oil on seminal parameters and testosterone serum levels in dogs, following also the residual effects for 60 days after treatment. Nine healthy male dogs with proven fertility, weighing between 10 and 36 kg, ageing from 2 to 11 years, of different breeds, fed diets supplemented with salmon oil at the manufacturer's recommended dosage. The parameters measured were sperm volume, motility, vigour, normal morphology and concentration, live/dead ratio, membrane viability by means of HOST test and serum testosterone levels. Evaluations occurred at baseline (D0), after 90 days of supplementation (D90) and at the end of the experiment, 60 days after supplementation cessation (D150). Results (mean ± SD) obtained at time D0, D90 and D150 were as follows: motility of 76.66% ± 13.7, 92.77 ± 4.41 and 93.0 ± 7.90 (p = .001); normal spermatozoa of 69.11% ± 24.90, 90.00% ± 5.15 and 80.66 ± 16.04 (p = .05); live/dead (%) from 64.44 ± 22.86 to 85.33 ± 8.41 (p = .001); and spermatozoa (%) with integral membrane in the membrane integrity (HOST) test ranging from 76.44 ± 20.74 to 91.22 ± 4.68 (p = .05). Serum levels of testosterone (ng/ml) increased from 5.50 ± 1.13 to 8.84 ± 1.13 at D90 (p = .003) and decreased after 2 months (D150) to 5.13 ± 1.13. In conclusion, a 90-day supplementation with salmon oil had a positive influence on semen quality and serum testosterone levels. The supplementation of omegas 3 and 6 at the ratio of 10:1 for 90 days determined an increase in concentration and motility of the sperm, and these effects were maintained for 60 days, with the only exception of testosterone levels.
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Affiliation(s)
- Marcelo Carvalho Santos
- Laboratory of Animal Reproduction and Genetic Improvement, North Fluminense State University (UENF), Campos dos Goytacazes, Brazil
| | - Chiara Milani
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, Italy
| | - Paolo Zucchini
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, Italy
| | - Celia Raquel Quirino
- Laboratory of Animal Reproduction and Genetic Improvement, North Fluminense State University (UENF), Campos dos Goytacazes, Brazil
| | - Stefano Romagnoli
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, Italy
| | - Isabel Candia Nunes da Cunha
- Laboratory of Animal Reproduction and Genetic Improvement, North Fluminense State University (UENF), Campos dos Goytacazes, Brazil
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Chemical Analysis of Lepidium meyenii (Maca) and Its Effects on Redox Status and on Reproductive Biology in Stallions †. Molecules 2019; 24:molecules24101981. [PMID: 31126050 PMCID: PMC6571579 DOI: 10.3390/molecules24101981] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 12/14/2022] Open
Abstract
The present study was conducted to assess the chemical composition of Yellow Maca (Lepidium meyenii) and its biological activity on stallions following oral administration of hypocotyl powder. Maca was subjected to methanolic extraction and the chemical analysis was carried out by LC-MS-QTOF (liquid chromatography-mass spectrometry). Our results showed that Maca contains some effective antioxidants, a high percentage of glucosinolates, and other important components with a high antioxidant capacity. To evaluate the plant biological activity in stallions fed with Maca powder for 60 days, the redox status and some reproductive parameters were investigated. Blood and semen samples were collected at 0, 30, 60, and 90 days from the beginning of this study. Blood samples showed a decrease of the reactive oxygen metabolites, evaluated by d-ROMs test, and an increase of the antioxidant barrier in terms of biological antioxidant potential (BAP test), powerful oxidant capacity (OXY-Adsorbent test), and thiols evaluation (-SHp test). Furthermore, semen samples showed a positive trend during Maca administration in the following parameters: ejaculate volumes and sperm concentrations, total and progressive motility, and acrosome integrity.
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Vinogradov IV, Zhivulko AR, Vinogradova LM, Korolev SV. Docosahexaenoic acid in the treatment of male infertility. ANDROLOGY AND GENITAL SURGERY 2018. [DOI: 10.17650/2070-9781-2018-19-4-21-27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Literature review is devoted to the analysis of modern data on the use of docosahexaenoic acid in the treatment of male infertility. A brief description of modern ideas about the possible causes of male infertility (a disturbance of function of the cell membrane and genetic damage of sperm) was conducted. The data on the anti-inflammatory properties of omega-3 polyunsaturated fatty acids are described in detail. The bioavailability of docosahexaenoic acid and the choice of drugs containing it for the treatment of male infertility are discussed. Increasing the content of polyunsaturated fatty acids, in particular docosahexaenoic acid, in the sperm membrane was associated with higher ejaculate quality. Therapy with the use of these substances led to the improvement of standard indicators of semen and a decrease in the proportion of sperm with fragmented DNA.
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56
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González-Ravina C, Aguirre-Lipperheide M, Pinto F, Martín-Lozano D, Fernández-Sánchez M, Blasco V, Santamaría-López E, Candenas L. Effect of dietary supplementation with a highly pure and concentrated docosahexaenoic acid (DHA) supplement on human sperm function. Reprod Biol 2018; 18:282-288. [DOI: 10.1016/j.repbio.2018.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/29/2018] [Accepted: 06/16/2018] [Indexed: 10/28/2022]
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Tvrdá E, Arroyo F, Gosálvez J. Dynamic assessment of human sperm DNA damage I: the effect of seminal plasma-sperm co-incubation after ejaculation. Int Urol Nephrol 2018; 50:1381-1388. [PMID: 29926367 DOI: 10.1007/s11255-018-1915-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/13/2018] [Indexed: 11/28/2022]
Abstract
AIM The purpose of the study was to evaluate the impact of seminal plasma in human ejaculates on the sperm DNA quality and DNA longevity. METHODS Semen samples for this study were obtained from 20 donors with a normal spermiogram. Following centrifugation, the sperm pellet was resuspended either in the seminal plasma proceeding from its respective donor, or in an equal amount of PBS, adjusting the concentration to 50 × 106/ml. Each set of samples was incubated at 37 °C for 24 h and the sperm DNA damage was assessed using the chromatin-dispersion test following 0, 2, 6, and 24 h of incubation. RESULTS Sperm DNA fragmentation (SDF) did not differ between the two experimental conditions at T0; however, Kaplan-Meier estimates to test for survival showed an statistical significant increase of SDF in the seminal plasma group when compared to the PBS group following all timeframes (p 0.000). With respect to sperm DNA longevity, the most dramatic loss of sperm DNA quality occurred during the first 2 h of incubation, with the rate of SDF (rSDF) in the seminal plasma being 2.1 more intense than in PBS. Interestingly, the rSDF was found to vary significantly between individuals, which was confirmed with significant correlations in all rSDF timeframes (rSDF T0-2, p 0.049; rSDF T2-6, p 0.000; rSDF T6-24: p 0.000). CONCLUSIONS Co-incubation of semen samples in seminal plasma after ejaculation increases iatrogenic sperm damage. This effect is statistically significant after 2 h of co-incubation. Subsequently, for ART purposes seminal plasma must be quickly removed after ejaculation-liquefaction, to avoid a higher susceptibility of sperm DNA towards fragmentation.
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Affiliation(s)
- Eva Tvrdá
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 94976, Slovakia.
| | - Francisca Arroyo
- Unit of Genetics, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Jaime Gosálvez
- Unit of Genetics, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
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Increased F 2-Isoprostane Levels in Semen and Immunolocalization of the 8-Iso Prostaglandin F 2α in Spermatozoa from Infertile Patients with Varicocele. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7508014. [PMID: 29682163 PMCID: PMC5846461 DOI: 10.1155/2018/7508014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/06/2017] [Indexed: 01/26/2023]
Abstract
Polyunsaturated fatty acid damages lead to alterations in sperm function. This study aimed to investigate the involvement of F2-isoprostanes (F2-IsoPs), oxidized lipid products from arachidonic acid, in sperm quality impairment. For this purpose, F2-IsoP levels in semen and F2-IsoP localization in spermatozoa were explored in infertile subjects affected by idiopathic infertility or varicocele, as well as in fertile men. As compared to fertile men, in the idiopathic infertility and varicocele groups, sperm concentration, motility, morphology, viability, and fertility index were significantly lower and the mean scores concerning sperm apoptosis, necrosis, and immaturity were significantly higher. The idiopathic infertile group showed a reduction in sperm motility and fertility index, as well as an increase of apoptosis and necrosis percentages, in comparison to the varicocele group. The varicocele group showed the highest levels of F2-IsoPs, a significant increase of sperm immaturity, and a significant correlation between F2-IsoP levels and sperm immaturity. 8-Iso Prostaglandin F2α, biomarker of in vivo F2-IsoP, was clearly localized in sperm midpiece and cytoplasmic residues. Data show that F2-IsoP formation is relevant in semen and sperm from infertile patients with varicocele and high percentage of immaturity, suggesting that a correct fatty acid integrity is needed for sperm maturation.
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Ferramosca A, Di Giacomo M, Moscatelli N, Zara V. Obesity and Male Infertility: Role of Fatty Acids in the Modulation of Sperm Energetic Metabolism. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700451] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Alessandra Ferramosca
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Lecce Italy
- Center for Biomolecular Nanotechnologies @UNILE; Istituto Italiano di Tecnologia; Arnesano (LE) Italy
| | - Mariangela Di Giacomo
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Lecce Italy
| | - Natalina Moscatelli
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Lecce Italy
- Center for Biomolecular Nanotechnologies @UNILE; Istituto Italiano di Tecnologia; Arnesano (LE) Italy
| | - Vincenzo Zara
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Lecce Italy
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Del Prete C, Tafuri S, Ciani F, Pasolini MP, Ciotola F, Albarella S, Carotenuto D, Peretti V, Cocchia N. Influences of dietary supplementation withLepidium meyenii(Maca) on stallion sperm production and on preservation of sperm quality during storage at 5 °C. Andrology 2018; 6:351-361. [DOI: 10.1111/andr.12463] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/10/2017] [Accepted: 12/04/2017] [Indexed: 01/12/2023]
Affiliation(s)
- C. Del Prete
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - S. Tafuri
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - F. Ciani
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - M. P. Pasolini
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - F. Ciotola
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - S. Albarella
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - D. Carotenuto
- UNMSM; Universidad Nacional Mayor San Marcos; Lima Peru
| | - V. Peretti
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
| | - N. Cocchia
- Department of Veterinary Medicine and Animal Productions; University of Naples ‘Federico II’; Naples Italy
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Wu F, Wang DD, Wen M, Che HX, Xue CH, Yanagita T, Zhang TT, Wang YM. Comparative analyses of DHA-Phosphatidylcholine and recombination of DHA-Triglyceride with Egg-Phosphatidylcholine or Glycerylphosphorylcholine on DHA repletion in n-3 deficient mice. Lipids Health Dis 2017; 16:234. [PMID: 29216887 PMCID: PMC5721541 DOI: 10.1186/s12944-017-0623-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 11/26/2017] [Indexed: 11/10/2022] Open
Abstract
Background Docosahexaenoic acid (DHA) is important for optimal neurodevelopment and brain function during the childhood when the brain is still under development. Methods The effects of DHA-Phosphatidylcholine (DHA-PC) and the recombination of DHA-Triglyceride with egg PC (DHA-TG + PC) or α-Glycerylphosphorylcholine (DHA-TG + α-GPC) were comparatively analyzed on DHA recovery and the DHA accumulation kinetics in tissues including cerebral cortex, erythrocyte, liver, and testis were evaluated in the weaning n-3 deficient mice. Results The concentration of DHA in weaning n-3 deficient mice could be recovered rapidly by dietary DHA supplementation, in which DHA-PC exhibited the better efficacy than the recombination of DHA-Triglyceride with egg PC or α-GPC. Interestingly, DHA-TG + α-GPC exhibited the greater effect on DHA accumulation than DHA-TG + PC in cerebral cortex and erythrocyte (p < 0.05), which was similar to DHA-PC. Meanwhile, DHA-TG + PC showed a similar effect to DHA-PC on DHA repletion in testis, which was better than that of DHA-TG + α-GPC (p < 0.05). Conclusion We concluded that different forms of DHA supplements could be applied targetedly based on the DHA recovery in different tissues, although the supplemental effects of the recombination of DHA-Triglyceride with egg PC or α-GPC were not completely equivalent to that of DHA-PC, which could provide some references to develop functional foods to support brain development and function.
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Affiliation(s)
- Fang Wu
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China
| | - Dan-Dan Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China
| | - Min Wen
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Hong-Xia Che
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China
| | - Chang-Hu Xue
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China.,Qingdao National Laboratory for Marine Science and Technology, Laboratory of Marine Drugs & Biological Products, Qingdao, Shandong Province, 266237, China
| | - Teruyoshi Yanagita
- Laboratory of Nutrition Biochemistry, Department of Applied Biochemistry and Food Science, Saga University, Saga, 840-8502, Japan
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China.
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, China. .,Qingdao National Laboratory for Marine Science and Technology, Laboratory of Marine Drugs & Biological Products, Qingdao, Shandong Province, 266237, China.
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Sperm preparation after freezing improves motile sperm count, motility, and viability in frozen-thawed sperm compared with sperm preparation before freezing-thawing process. J Assist Reprod Genet 2017; 35:237-245. [PMID: 28990130 DOI: 10.1007/s10815-017-1050-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022] Open
Abstract
PURPOSE The aim of this study is to evaluate which cryopreservation protocol, freezing before or after swim-up, optimizes cryopreservation outcomes in terms of motile sperm count, motility, morphology, and viability, and also to establish whether sperm viability could be assessed based on sperm motility. METHODS Fifty-three fresh and 53 swim-up prepared samples were considered for the first experiment. In parallel, total motility evaluation by CASA system (computer-assisted sperm analyzer) and hypoosmotic swelling test (HOS-test) was performed in each sample to compare the viability results of both methods. In the second experiment, 21 normozoospermic semen samples and 20 semen samples from male factor patients were included. After fresh ejaculate evaluation, the semen sample of each patient was divided into two aliquots, one of them was frozen before swim-up and the other was frozen after swim-up. Motility, sperm count, morphology, and viability were evaluated after thawing. RESULTS A linear regression model allows prediction of HOS-test viability results based on total motility: HOS = 1.38 + 0.97 · TM (R 2 = 99.10, residual mean squares = 9.51). Freezing before sperm selection leads to higher total and progressive motility, total motile sperm count, and viability rates than when sperm selection is performed before freezing (P < 0.005 in all cases). In fact, sperm selection prior to freezing reaches critical values when subfertile patients are considered. CONCLUSIONS To conclude, total motility evaluation can predict HOS-test viability results, resulting in a more objective and less time-consuming method to assess viability. In addition, sperm freezing prior to swim-up selection must be considered in order to achieve better outcomes after thawing, especially in patients presenting poor sperm baseline.
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Liu Y, Ding Z. Obesity, a serious etiologic factor for male subfertility in modern society. Reproduction 2017; 154:R123-R131. [DOI: 10.1530/rep-17-0161] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/02/2017] [Accepted: 07/26/2017] [Indexed: 12/14/2022]
Abstract
Obesity, defined as excessive accumulation of fat in adipose tissue, is a metabolic disorder resulting from behavioral, environmental and heritable causes. Obesity increases the risks of hypertension, diabetes, cardiovascular disease, sleep apnea, respiratory problems, osteoarthritis and cancer. Meanwhile, the negative impact of obesity on male reproduction is gradually recognized. According to the clinical investigations and animal experiments, obesity is correlated with reductions in sperm concentration and motility, increase in sperm DNA damage and changes in reproductive hormones. Several mechanisms can elucidate the effects of obesity on sperm functions and male subfertility, i.e., the excessive conversion of androgens into estrogens in redundant adipose tissue causes sexual hormone imbalance, subsequently resulting in hypogonadism. Secondly, adipokines produced by adipose tissue induce severe inflammation and oxidative stress in male reproductive tract, directly impairing testicular and epididymal tissues. Moreover, increased scrotal adiposity leads to increase gonadal heat, continuously hurting spermatogenesis. Therefore, obesity alters the systematic and regional environment crucial for spermatogenesis in testis and sperm maturation in epididymis, and finally results in poor sperm quality including decreased sperm motility, abnormal sperm morphology and acrosome reaction, changed membrane lipids and increased DNA damage. Furthermore, recent studies indicate that epigenetic changes may be a consequence of increased adiposity. A major effort to identify epigenetic determinants of obesity revealed that sperm DNA methylation and non-coding RNA modification are associated with BMI changes and proposed to inherit metabolic comorbidities across generations. This review will explain how obesity-related changes in males to influence sperm function and male fertility as well.
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Taghilou P, Rostami B, Masoumi R, Mirzaei-Alamouti H. Effects of supplementation of the Tris-egg yolk extender with n-3 polyunsaturated fatty acids (PUFAs) on frozen-thawed ram semen characteristics. Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2017.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Do Insulin Replacement and Omega3 Protect the Male Reproductive Function of the Streptozotocin-Induced Diabetic Mice? J Nutr Metab 2017; 2017:6102985. [PMID: 28770110 PMCID: PMC5523187 DOI: 10.1155/2017/6102985] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 06/04/2017] [Indexed: 11/30/2022] Open
Abstract
Diabetes mellitus (DM), the most common metabolic disease, might affect different organs such as male reproductive system. Experiments have shown that n-3 fatty acids could improve male reproductive function. Present study was performed to examine the effects of omega3 on sperms and testicular parameters in diabetic mice. Adult NMRI male mice were randomly divided into intact and diabetic groups (n = 8). Streptozotocin-induced diabetic animals were divided into 4 groups of diabetic-saline (Dia-Sa), diabetic-insulin (Dia-Ins), diabetic-omega3 (Dia-omg3), and diabetic-insulin-omega3 (Dia-Ins-omg3). Following confirmation of diabetes, different treatments including 3 U/100 g insulin subcutaneously and 400 mg/kg omega3 orally were administered, where applicable according to the treatment groups. Thirty-five days later, the sperm number, motility, progression, and normal morphology were determined. Also, testes diameters and structure including germinal epithelium thickness, seminiferous tubule diameters, Leydig cell number, and testosterone level were assessed. Sperm number, viability, fast motility, testes volume, and serum testosterone level decreased insignificantly in the Dia-Sa group compared with the intact animals. Neither insulin replacement nor omega3 administration could significantly improve the outcome. We might conclude that short periods of diabetes could not significantly affect the male reproductive function. In addition, insulin replacement and/or omega-3 supplementation does not have any profound effects on male reproductive system.
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66
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Palomar Rios A, Molina Botella I. Sperm parameters that play a major role in the assessment of semen quality after cryopreservation. J Assist Reprod Genet 2017. [PMID: 28624858 DOI: 10.1007/s10815-017-0973-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- A Palomar Rios
- Hospital Universitari i Politècnic La Fe, Assisted Reproduction Unit, 46026, Valencia, Spain.
| | - I Molina Botella
- Hospital Universitari i Politècnic La Fe, Assisted Reproduction Unit, 46026, Valencia, Spain
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67
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Cryopreservation triggers DNA fragmentation and ultrastructural damage in spermatozoa of oligoasthenoteratozoospermic men. MARMARA MEDICAL JOURNAL 2017. [DOI: 10.5472/marumj.344797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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68
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Tarig AA, Wahid H, Rosnina Y, Yimer N, Goh YM, Baiee FH, Khumran AM, Salman H, Ebrahimi M. Effect of different concentrations of egg yolk and virgin coconut oil in Tris-based extenders on chilled and frozen-thawed bull semen. Anim Reprod Sci 2017; 182:21-27. [PMID: 28511862 DOI: 10.1016/j.anireprosci.2017.03.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 03/31/2017] [Indexed: 11/24/2022]
Abstract
The aim of this study was to evaluate the effects of 8% virgin coconut oil (VCO) combined with different percentages of egg yolk in Tris extender on the quality of chilled and frozen-thawed bull semen. A total of 24 ejaculates from four bulls were collected using an electroejaculator. Semen samples were diluted with 8% VCO in Tris extender which contained different concentrations 0% (control), 4%, 8%, 12%, 16% and 20% egg yolk. The diluted semen samples were divided into two fractions: one was chilled and stored at 4°C until evaluation after 24, 72, and 144h; the second fraction was processed by chilling for 3h at 4°C to equilibrate, then packaged in 0.25ml straws and frozen and stored in liquid nitrogen at -196°C until evaluation after 7 and 14 days. Both chilled and frozen semen samples were then thawed at 37°C and assessed for general motility using computer-assisted semen analysis (CASA), viability, acrosome integrity, and morphology (eosin-nigrosin), membrane integrity (hypo-osmotic swelling test) and lipid peroxidation (thiobarbituric acid-reactive substances (TBARS)). The results indicate treatments with 8%, 12%, 16% and 20% egg yolk with 8% VCO had greater sperm quality (P<0.05) as compared with the control. The treatment with 20% egg yolk had the greatest sperm quality (P<0.05) among the treated groups for both chilled and frozen-thawed semen. In conclusion, the use of 8% VCO combined with 20% egg yolk in a Tris-based extender enhanced the values for chilled and frozen-thawed quality variables of bull sperm.
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Affiliation(s)
- A A Tarig
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia; Department of Dairy Production, Faculty of Animal Production, University of Khartoum, Sudan
| | - H Wahid
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia.
| | - Y Rosnina
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - N Yimer
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - Y M Goh
- Department of Veterinary Pre-Clinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - F H Baiee
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - A M Khumran
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - H Salman
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
| | - M Ebrahimi
- Department of Veterinary Pre-Clinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor Darul Ehsan, Malaysia
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69
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Dietary polyunsaturated fatty acid supplementation of young post-pubertal dairy bulls alters the fatty acid composition of seminal plasma and spermatozoa but has no effect on semen volume or sperm quality. Theriogenology 2017; 90:289-300. [DOI: 10.1016/j.theriogenology.2016.12.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 12/09/2016] [Accepted: 12/12/2016] [Indexed: 01/23/2023]
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70
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Ramos Angrimani DS, Nichi M, Losano JDA, Lucio CF, Lima Veiga GA, Franco MVMJ, Vannucchi CI. Fatty acid content in epididymal fluid and spermatozoa during sperm maturation in dogs. J Anim Sci Biotechnol 2017; 8:18. [PMID: 28194272 PMCID: PMC5299670 DOI: 10.1186/s40104-017-0148-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 01/24/2017] [Indexed: 12/02/2022] Open
Abstract
Background During sperm maturation, there is a reorganization of fatty acids from plasmatic membrane of the spermatozoa, which allows higher membrane integrity and acquisition of sperm motility. However, the fatty acid profile during sperm maturation remains unclear in dogs. Thus, the aim of this study was to identify the fatty acids from the epididymal spermatozoa and plasma during the sperm maturation, and observed changes in the motility and plasmatic membrane parameters. Twenty one adult dogs were used, subsequently to bilateral orchiectomy and epididymal storage, sperm samples were collected from the different segments of the epididymis. Samples were evaluated for conventional microscopy, computer-assisted motility analysis, sperm plasma membrane permeability and the fatty acid analysis (lipids were extracted, transmethylated and analyzed by chromatography). Results Caput and corpus sperm showed lower values for the motility variables evaluated and plasmatic membrane integrity, indicating different levels of the fatty acids organization. Saturated, monounsaturated and polyunsaturated fatty acids were in higher concentrations in the spermatozoa from epididymis cauda. Highlighting the presence of caprylic, stearic and docosahexaenoic acids. Conclusions These findings demonstrate the influence of the fatty acid profile during sperm maturation, assigning physical and chemical changes in sperm cells, essential for fertilization.
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Affiliation(s)
- Daniel S Ramos Angrimani
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
| | - Marcilio Nichi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
| | - João Diego A Losano
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
| | - Cristina F Lucio
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
| | - Gisele A Lima Veiga
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
| | - Márcia V M Junqueira Franco
- Department of Internal Medicine, Division of Nutrition, University of São Paulo, Av. Bandeirantes, 3900 - 14040-040, Ribeirão Preto, Brazil
| | - Camila I Vannucchi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270 Brazil
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71
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Kaka A, Haron W, Yusoff R, Yimer N, Khumran AM, Sarsaifi K, Behan AA, Kaka U, Memon AA, Ebrahimi M. Effect of docosahexanoic acid on quality of frozen–thawed bull semen in BioXcell extender. Reprod Fertil Dev 2017; 29:490-495. [DOI: 10.1071/rd15089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 08/11/2015] [Indexed: 11/23/2022] Open
Abstract
This study was conducted to investigate the effect of docosahexanoic acid (DHA) supplementation in BioXcell extender on the quality of frozen–thawed bull semen. Twenty-four ejaculates were collected from three bulls (eight from each bull). Ejaculates with motility ≥70% and normal morphology ≥80% were extended into BioXcell extender to which 0 (control), 3, 5, 10 or 15 ng mL–1 DHA was added. The supplemented semen samples were incubated at 37°C for 15 min for DHA uptake by spermatozoa. Later, samples were cooled for 2 h at 5°C and packaged into 0.25-mL straws, frozen in liquid nitrogen for 24 h and subsequently thawed for evaluation. Results are presented as percentages ± s.e.m. Supplementation with DHA at 3 ng mL–1 significantly improved sperm functional parameters including sperm motility, normal morphology, viability, acrosome integrity and membrane integrity when compared with other supplemented groups and the control. Lipid peroxidation increased as the incorporation of DHA supplementation increased. In conclusion, 3 ng mL–1 concentration of DHA resulted in superior quality of frozen–thawed bull spermatozoa and is suggested as the optimum level of DHA to be added into BioXcell extender.
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72
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Martínez-Soto JC, Domingo JC, Cordobilla B, Nicolás M, Fernández L, Albero P, Gadea J, Landeras J. Dietary supplementation with docosahexaenoic acid (DHA) improves seminal antioxidant status and decreases sperm DNA fragmentation. Syst Biol Reprod Med 2016; 62:387-395. [PMID: 27792396 DOI: 10.1080/19396368.2016.1246623] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The purpose of this study was to evaluate the effect of docosahexaenoic acid (DHA) dietary supplementation on semen quality, fatty acid composition, antioxidant capacity, and DNA fragmentation. In this randomized, double blind, placebo-controlled, parallel-group study, 74 subjects were recruited and randomly assigned to either the placebo group (n=32) or to the DHA group (n=42) to consume three 500-mg capsules of oil per day over 10 weeks. The placebo group received 1,500 mg/day of sunflower oil and the DHA group 1,500 mg/day of DHA-enriched oil. Seminal parameters (semen volume, sperm concentration, motility, morphology, and vitality), total antioxidant capacity, deoxyribonucleic acid fragmentation, and lipid composition were evaluated prior to the treatment and after 10 weeks. Finally, 57 subjects were included in the study with 25 in the placebo group and 32 in the DHA group. No differences were found in traditional sperm parameters or lipid composition of the sperm membrane after treatment. However, an increase in DHA and Omega-3 fatty acid content in seminal plasma, an improvement in antioxidant status, and a reduction in the percentage of spermatozoa with deoxyribonucleic acid damage were observed in the DHA group after 10 weeks of treatment.
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Affiliation(s)
| | - Joan Carles Domingo
- b Department of Biochemistry and Molecular Biology , University of Barcelona , Barcelona , Spain
| | - Begoña Cordobilla
- b Department of Biochemistry and Molecular Biology , University of Barcelona , Barcelona , Spain
| | | | | | | | - Joaquín Gadea
- c Department of Physiology, International Excellence Campus for Higher Education and Research , Campus Mare Nostrum, University of Murcia , Murcia , Spain
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73
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Zerbinati C, Caponecchia L, Rago R, Leoncini E, Bottaccioli AG, Ciacciarelli M, Pacelli A, Salacone P, Sebastianelli A, Pastore A, Palleschi G, Boccia S, Carbone A, Iuliano L. Fatty acids profiling reveals potential candidate markers of semen quality. Andrology 2016; 4:1094-1101. [DOI: 10.1111/andr.12236] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/12/2016] [Accepted: 05/17/2016] [Indexed: 01/29/2023]
Affiliation(s)
- C. Zerbinati
- Vascular Biology & Mass Spectrometry Laboratory; Department of Medico-Surgical Sciences and Biotechnologies; Sapienza University of Rome; Latina Italy
| | - L. Caponecchia
- Center for Couple Infertility and Andrology; S. M. Goretti Hospital; Latina Italy
| | - R. Rago
- Pathophysiology of Reproduction and Andrology Unit; S. Pertini Hospital; Rome Italy
| | - E. Leoncini
- Section of Hygiene; Institute of Public Health; Università Cattolica del Sacro Cuore; Rome Italy
| | - A. G. Bottaccioli
- Vascular Biology & Mass Spectrometry Laboratory; Department of Medico-Surgical Sciences and Biotechnologies; Sapienza University of Rome; Latina Italy
| | - M. Ciacciarelli
- Vascular Biology & Mass Spectrometry Laboratory; Department of Medico-Surgical Sciences and Biotechnologies; Sapienza University of Rome; Latina Italy
| | - A. Pacelli
- Vascular Biology & Mass Spectrometry Laboratory; Department of Medico-Surgical Sciences and Biotechnologies; Sapienza University of Rome; Latina Italy
| | - P. Salacone
- Center for Couple Infertility and Andrology; S. M. Goretti Hospital; Latina Italy
| | - A. Sebastianelli
- Center for Couple Infertility and Andrology; S. M. Goretti Hospital; Latina Italy
| | - A. Pastore
- Urology Unit; Department of Medico-Surgical Sciences and Biotechnologies; Istituto Chirurgico Ortopedico alaumatologico; Latina Italy
| | - G. Palleschi
- Urology Unit; Department of Medico-Surgical Sciences and Biotechnologies; Istituto Chirurgico Ortopedico alaumatologico; Latina Italy
| | - S. Boccia
- Section of Hygiene; Institute of Public Health; Università Cattolica del Sacro Cuore; Rome Italy
| | - A. Carbone
- Urology Unit; Department of Medico-Surgical Sciences and Biotechnologies; Istituto Chirurgico Ortopedico alaumatologico; Latina Italy
| | - L. Iuliano
- Vascular Biology & Mass Spectrometry Laboratory; Department of Medico-Surgical Sciences and Biotechnologies; Sapienza University of Rome; Latina Italy
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74
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Andersen JM, Rønning PO, Herning H, Bekken SD, Haugen TB, Witczak O. Fatty acid composition of spermatozoa is associated with BMI and with semen quality. Andrology 2016; 4:857-65. [PMID: 27371336 DOI: 10.1111/andr.12227] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/22/2016] [Accepted: 04/28/2016] [Indexed: 12/17/2022]
Abstract
High body mass index (BMI) is negatively associated with semen quality. In addition, the composition of fatty acids of spermatozoa has been shown to be important for their function. The aim of the study was to examine the association between BMI and the composition of spermatozoa fatty acids in men spanning a broad BMI range. We also analysed the relation between fatty acid composition of spermatozoa and semen characteristics, and the relationship between serum fatty acids and spermatozoa fatty acids. One hundred forty-four men with unknown fertility status were recruited from the general population, from couples with identified female infertility and from morbid obesity centres. Standard semen analysis (WHO) and sperm DNA integrity (DFI) analysis were performed. Fatty acid compositions were assessed by gas chromatography. When adjusted for possible confounders, BMI was negatively associated with levels of sperm docosahexaenoic acid (DHA) (p < 0.001) and palmitic acid (p < 0.001). The amount of sperm DHA correlated positively with total sperm count (r = 0.482), sperm concentration (r = 0.469), sperm vitality (r = 0.354), progressive sperm motility (r = 0.431) and normal sperm morphology (r = 0.265). A negative association was seen between DHA levels and DNA fragmentation index (r = -0.247). Levels of spermatozoa palmitic acid correlated positively with total sperm count (r = 0.227), while levels of linoleic acid correlated negatively (r = -0.254). When adjusted for possible confounders, only the levels of arachidonic acid showed positive correlation between spermatozoa and serum phospholipids (r = 0.262). Changes in the fatty acid composition of spermatozoa could be one of the mechanisms underlying the negative association between BMI and semen quality. The relationship between fatty acids of spermatozoa and serum phospholipids was minor, which indicates that BMI affects fatty acid composition of spermatozoa through regulation of fatty acid metabolism in the testis. The role of dietary intake of fatty acids on the spermatozoa fatty acid composition remains to be elucidated.
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Affiliation(s)
- J M Andersen
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - P O Rønning
- Faculty of Technology, Art and Design, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - H Herning
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - S D Bekken
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - T B Haugen
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - O Witczak
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
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75
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Díaz R, Torres MA, Bravo S, Sanchez R, Sepúlveda N. Determination of fatty acid profile in ram spermatozoa and seminal plasma. Andrologia 2015; 48:723-6. [DOI: 10.1111/and.12506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2015] [Indexed: 11/30/2022] Open
Affiliation(s)
- R. Díaz
- Laboratorio de Producción Animal; Facultad de Ciencias Agropecuarias y Forestales; Universidad de La Frontera; Temuco Chile
- Centro de Biotecnología en Reproducción (BIOREN-CEBIOR); Facultad de Medicina; Universidad de La Frontera; Temuco Chile
| | - M. A. Torres
- Laboratorio de Andrología y Tecnología de Embriones Suinos (LATES); Facultad de Medicina Veterinaria y Zootecnia; Universidad de São Paulo; Pirasununga Brasil
| | - S. Bravo
- Laboratorio de Producción Animal; Facultad de Ciencias Agropecuarias y Forestales; Universidad de La Frontera; Temuco Chile
- Centro de Biotecnología en Reproducción (BIOREN-CEBIOR); Facultad de Medicina; Universidad de La Frontera; Temuco Chile
| | - R. Sanchez
- Centro de Biotecnología en Reproducción (BIOREN-CEBIOR); Facultad de Medicina; Universidad de La Frontera; Temuco Chile
| | - N. Sepúlveda
- Laboratorio de Producción Animal; Facultad de Ciencias Agropecuarias y Forestales; Universidad de La Frontera; Temuco Chile
- Centro de Biotecnología en Reproducción (BIOREN-CEBIOR); Facultad de Medicina; Universidad de La Frontera; Temuco Chile
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76
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Yeste M. Sperm cryopreservation update: Cryodamage, markers, and factors affecting the sperm freezability in pigs. Theriogenology 2015; 85:47-64. [PMID: 26506124 DOI: 10.1016/j.theriogenology.2015.09.047] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/20/2015] [Accepted: 09/22/2015] [Indexed: 02/04/2023]
Abstract
Cryopreservation is the most efficient method for long-term preservation of mammalian sperm. However, freeze-thawing procedures may strongly impair the sperm function and survival and thus decrease the reproductive performance. In addition, the sperm resilience to withstand cryopreservation, also known as freezability, presents a high individual variability. The present work summarizes the principles of cryoinjury and the relevance of permeating and nonpermeating cryoprotective agents. Descriptions about sperm cryodamage are mainly focused on boar sperm, but reference to other mammalian species is also made when relevant. Main cryoinjuries not only regard to sperm motility and membrane integrity, but also to the degradation effect exerted by freeze-thawing on other important components for sperm fertilizing ability, such as mRNAs. After delving into the main differences between good and poor freezability boar ejaculates, those protein markers predicting the sperm ability to sustain cryopreservation are also mentioned. Moreover, factors that may influence sperm freezability, such as season, diet, breed, or ejaculate fractions are discussed, together with the effects of different additives, like seminal plasma and antioxidants. After briefly referring to the effects of long-term sperm preservation in frozen state and the reproductive performance of frozen-thawed boar sperm, this work speculates with new research horizons on the preservation of boar sperm, such as vitrification and freeze-drying.
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Affiliation(s)
- Marc Yeste
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK.
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77
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Esmaeili V, Shahverdi AH, Moghadasian MH, Alizadeh AR. Dietary fatty acids affect semen quality: a review. Andrology 2015; 3:450-61. [PMID: 25951427 DOI: 10.1111/andr.12024] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 01/12/2015] [Accepted: 02/11/2015] [Indexed: 11/27/2022]
Abstract
Mammalian spermatozoa are characterized by a high proportion of polyunsaturated fatty acids (PUFA) which play a crucial role in fertilization. This review focuses on analysis of sperm fatty acid profiles and the effects of omega-3, saturated and trans dietary and sperm fatty acids on sperm parameters. Two major points have been pivotal points of investigation in the field of sperm fatty acid profiles: first, the comparison between fatty acid profiles of fertile and infertile men and second, the effect of dietary fatty acids on sperm fatty acid profiles as well as sperm quality and quantity. Docosahexaenoic acid (DHA, C22:6n-3), and palmitic acid (C16:0) are the predominant PUFA and saturated fatty acids, respectively, in human sperm cells. Higher levels of DHA are concentrated on the sperm's head or tail varying among different species. However, the human sperm head contains a higher concentration of DHA. Dietary fatty acids influence on sperm fatty acid profiles and it seems that sperm fatty acid profiles are most sensitive to dietary omega-3 PUFA. Although improvements in sperm parameters are a response to omega-3 sources after more than 4 weeks of supplementation in the male diet, time-dependent and dose-dependent responses may explain the failure in some experiments. In human spermatozoa, elevated saturated or trans fatty acid concentration and a low DHA level is a concern. The regulations of the sperm fatty acid mean melting point as well as expression regulation of peroxisome proliferator-activated receptor gamma (PPARG) alongside with spermatozoon assembly, anti-apoptosis effects, eicosanoid formation, and hormone activity are the putative key factors that induce a response by inclusion of omega-3 PUFA.
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Affiliation(s)
- V Esmaeili
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - A H Shahverdi
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - M H Moghadasian
- Department of Human Nutritional Sciences, St Boniface Hospital Research Centre, University of Manitoba and Canadian Centre for Agri-food Research in Medicine, Winnipeg, MB, Canada
| | - A R Alizadeh
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Animal Science, Saveh Branch, Islamic Azad University, Saveh, Iran
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78
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Abstract
Lipid is an important constituent of cell membrane. Membrane lipid composition of spermatozoa has been correlated to different function. Many researchers have related membrane lipid with survival success after cryopreservation or cold shock. Sperm maturation and acrosome reactions are natural phenomenon, but cryopreservation or cold shock is not. Therefore, sperm cells are not programmed for such change and undergo stress. So the change in membrane lipid composition due to cold shock or cryopreservation may be looked upon as response of spermatozoa to a certain stressed condition. A significant body of research worked on the relationship between membrane lipid and fatty acid composition and ability of cell to tolerate adverse change in temperature. However, as the approach of different research groups was different, it is very difficult to compare the changes. Studies have been done with different species, ejaculated/seminal or epididymal sperm. Lipid analyses have been done with whole cell membrane isolated by different methods. Fatty acids estimated were from whole cell, plasma membrane, head membrane, or phospholipids. The cryopreservation condition, media composition, and diluents/cryoprotectants were also different. At this onset a comprehensive review is needed to cover changes of sperm membrane lipid composition of different species under different cryopreservation conditions.
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79
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Kaka A, Wahid H, Rosnina Y, Yimer N, Khumran AM, Behan AA, Ebrahimi M. Alpha-Linolenic Acid Supplementation in Tris Extender Can Improve Frozen-Thawed Bull Semen Quality. Reprod Domest Anim 2014; 50:29-33. [DOI: 10.1111/rda.12445] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 09/21/2014] [Indexed: 11/27/2022]
Affiliation(s)
- A Kaka
- Department of Veterinary Clinical Studies; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
- Sindh Agriculture University; Tando jam Pakistan
| | - H Wahid
- Department of Veterinary Clinical Studies; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
| | - Y Rosnina
- Department of Veterinary Clinical Studies; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
| | - N Yimer
- Department of Veterinary Clinical Studies; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
| | - AM Khumran
- Department of Veterinary Clinical Studies; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
| | - AA Behan
- Department of Animal Science; Faculty of Agriculture; Universiti Putra Malaysia; Serdang Malaysia
| | - M Ebrahimi
- Department of Veterinary Preclinical Sciences; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Malaysia
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