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Mogielnicka-Brzozowska M, Cichowska AW. Molecular Biomarkers of Canine Reproductive Functions. Curr Issues Mol Biol 2024; 46:6139-6168. [PMID: 38921038 PMCID: PMC11202846 DOI: 10.3390/cimb46060367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024] Open
Abstract
The aim of the current study is to review potential molecular biomarker substances selected so far as useful for assessing the quality of dog semen. Proteins, lipids, carbohydrates, and ions can serve as molecular biomarkers of reproductive functions (BRFs) for evaluating male reproductive health and identifying potential risk factors for infertility or reproductive disorders. Evaluation of BRF levels in semen samples or reproductive tissues may provide insights into the underlying causes of infertility, such as impaired sperm function, abnormal sperm-egg interaction, or dysfunction of the male reproductive tract. Molecular biomarker proteins may be divided into two groups: proteins that are well-studied, such as A-kinase anchoring proteins (AKAPs), albumins (ALBs), alkaline phosphatase (ALPL), clusterin (CLU), canine prostate-specific esterase (CPSE), cysteine-rich secretory protein 2 (CRISP2), lactotransferrin (LTF), metalloproteinases (MMPs), and osteopontin (OPN) and proteins that are not well-studied. Non-protein markers include lipid-based substances (fatty acids, phosphatidylcholine), carbohydrates (glycosaminoglycans), and ions (zinc, calcium). Assessing the levels of BRFs in semen samples may provide valuable information for breeding management and reproductive assessments in dogs. This review systematizes current knowledge that could serve as a starting point for developing practical tests with the use of biomarkers of canine reproductive functions and their predictive value for assisted reproductive technique outcomes and semen preservation.
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Affiliation(s)
- Marzena Mogielnicka-Brzozowska
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
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Zmudzinska A, Wisniewski J, Mlynarz P, Olejnik B, Mogielnicka-Brzozowska M. Age-Dependent Variations in Functional Quality and Proteomic Characteristics of Canine (Canis lupus familiaris) Epididymal Spermatozoa. Int J Mol Sci 2022; 23:ijms23169143. [PMID: 36012418 PMCID: PMC9409041 DOI: 10.3390/ijms23169143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/11/2022] [Accepted: 08/14/2022] [Indexed: 12/01/2022] Open
Abstract
Increased male age is associated with a significant reduction in semen quality. Little is known about the sperm proteome changes resulting from the aging process. This study aimed to investigate the relationship between the functional quality and proteome of epididymal spermatozoa of dogs that were differing in age. The study was conducted on 30 male dogs that were divided into three age groups. G1—12 to 41 months old, G2—42 to 77 months old, and G3—78 to 132 months old. The sperm samples were assessed using a computer-assisted semen analysis (CASA). The epididymal sperm proteins were analyzed using gel electrophoresis (SDS-PAGE), nano-liquid chromatography coupled to quadrupole time of flight mass spectrometry (NanoUPLC-Q-TOF/MS) and bioinformatic tools. The sperm quality parameters were significantly lower in older dogs. NanoUPLC-Q-TOF/MS identification resulted in 865 proteins that were found in the G1, 472 in G2, and 435 in G3. There were seven proteins that were present in all three age groups, and four of them (ACTB, CE10, NPC2, CRISP2) showed significant changes among the studied groups. Age-dependent variations were detected in the sperm proteome composition and were related to important metabolite pathways, which might suggest that several proteins are implicated in sperm maturation and could be potential aging biomarkers.
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Affiliation(s)
- Anna Zmudzinska
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
| | - Jerzy Wisniewski
- Department of Biochemistry, Molecular Biology and Biotechnology, Wroclaw University of Science and Technology, Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Piotr Mlynarz
- Department of Biochemistry, Molecular Biology and Biotechnology, Wroclaw University of Science and Technology, Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Beata Olejnik
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368 Wroclaw, Poland
| | - Marzena Mogielnicka-Brzozowska
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland
- Correspondence: ; Tel.: +48-89-524-5259
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Angrimani DDSR, Bicudo LDC, Luceno NL, Leemans B, Nichi M, Vannucchi CI, Van Soom A. A triple stain method in conjunction with an in-depth screening of cryopreservation effects on post-thaw sperm in dogs. Cryobiology 2021; 105:56-62. [PMID: 34902341 DOI: 10.1016/j.cryobiol.2021.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/13/2021] [Accepted: 12/08/2021] [Indexed: 12/18/2022]
Abstract
In order to accurately analyze the possible side effects of sperm cryopreservation, an in-depth screening of post-thaw sperm status is necessary. Thus, this study aimed to identify thorough effects of sperm cryopreservation, by evaluating the integrity of all specific structures of the canine spermatozoa. Thirteen (n = 13) mature dogs of different breeds were selected. Six dogs (n = 6) were subjected to sperm cryopreservation, whereas seven dogs (n = 7) were used as semen donors to validate a simultaneous assessment of sperm plasmatic, acrosomal, and mitochondrial membranes (triple stain) by fluorescent probes. Fresh and post-thaw semen samples were evaluated through a computer-assisted analysis of sperm motility, sperm morpho-functional evaluation, triple stain and sperm DNA integrity. Post-thaw semen samples had lower total and progressive motility, as well as higher percentage of minor and major defects. Moreover, post-thaw samples had higher percentage of sperm with plasma membrane and mitochondrial damage but intact acrosome, and also sperm with simultaneous damaged plasma, acrosomal and mitochondrial membranes. Furthermore, post-thaw sperm had higher protamination deficiency and DNA fragmentation. In conclusion, cryopreservation has a broad impact in sperm morphology and function, altering motility patterns, plasma, acrosome and mitochondrial membranes integrity, as well as sperm DNA.
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Affiliation(s)
- Daniel de Souza Ramos Angrimani
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87 -05508-270, São Paulo, Brazil
| | - Luana de Cássia Bicudo
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87 -05508-270, São Paulo, Brazil
| | - Nuria Llamas Luceno
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, 9000, Belgium
| | - Bart Leemans
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, 9000, Belgium
| | - Marcilio Nichi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87 -05508-270, São Paulo, Brazil
| | - Camila Infantosi Vannucchi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87 -05508-270, São Paulo, Brazil.
| | - Ann Van Soom
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, 9000, Belgium
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Canine and Feline Epididymal Semen-A Plentiful Source of Gametes. Animals (Basel) 2021; 11:ani11102961. [PMID: 34679980 PMCID: PMC8532807 DOI: 10.3390/ani11102961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022] Open
Abstract
Simple Summary The epididymis is a source of fertile spermatozoa. For some males, preserving spermatozoa that are stored in the epididymis might be an ultimate attempt for gamete preservation. The quality of epididymal semen is different from ejaculated semen in various animal species. Although assisted reproductive technologies (ART) have been introduced in cats as a tool to preserve valuable genetics of endangered wild felids, epididymal semen cryopreservation is still suboptimal in dogs. Therefore, in this paper, we carried out a review to list the morphological changes of spermatozoa during epididymal transit alongside with the potential that holds in the epididymal semen in dogs and cats. We believe that better comprehension of epididymal semen collection method, quality and freezability may aid in optimizing cryopreservation and enhance different applications of ART. Abstract Canine and feline epididymal semen provide an additional source of gametes to preserve the genetics of valuable breeding dogs and tomcats, especially for those that fail to ejaculate, need castration as a therapy or die unexpectedly. Moreover, since it is quite common to perform castration of non-breeding dogs and cats, the development of a gene bank of epididymal semen collected after castration would greatly contribute to increase the genetic diversity in dogs and cats. Collection and cryopreservation of epididymal semen necessitates a full understanding of the function of the epididymis and of the characteristics of epididymal spermatozoa as opposed to ejaculated semen. During collection of epididymal semen, specific factors may have a negative effect on epididymal semen quality and freezability. Accordingly, the elimination of these triggers could enhance epididymal semen freezability and consequently positively influence post-thaw semen quality and outcome for different ARTs.
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Pintus E, Ros-Santaella JL. Impact of Oxidative Stress on Male Reproduction in Domestic and Wild Animals. Antioxidants (Basel) 2021; 10:antiox10071154. [PMID: 34356386 PMCID: PMC8301082 DOI: 10.3390/antiox10071154] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 07/16/2021] [Indexed: 01/02/2023] Open
Abstract
Oxidative stress occurs when the levels of reactive oxygen species (ROS) overcome the antioxidant defenses of the organism, jeopardizing several biological functions, including reproduction. In the male reproductive system, oxidative stress not only impairs sperm fertility but also compromises offspring health and survival, inducing oxidative damage to lipids, proteins and nucleic acids. Although a clear link between oxidative stress and male fertility disorders has been demonstrated in humans and laboratory rodents, little information is available about the implications of impaired redox homeostasis in the male fertility of domestic and wild animals. Therefore, this review aims to provide an update regarding the intrinsic and extrinsic factors that are associated with oxidative stress in the male reproductive system and their impact on the reproductive performance of domestic and wild animals. The most recent strategies for palliating the detrimental effects of oxidative stress on male fertility are reviewed together with their potential economic and ecological implications in the livestock industry and biodiversity conservation.
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Angrimani DSR, Brito MM, Rui BR, Nichi M, Vannucchi CI. Reproductive and endocrinological effects of Benign Prostatic Hyperplasia and finasteride therapy in dogs. Sci Rep 2020; 10:14834. [PMID: 32908208 PMCID: PMC7481189 DOI: 10.1038/s41598-020-71691-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 08/20/2020] [Indexed: 11/21/2022] Open
Abstract
Benign prostatic hyperplasia (BPH) is one of the most important reproductive disorders in aging dogs. Therapeutic measures include orchiectomy and pharmacological treatment, leading to reduction of prostate volume and clinical signs. One of the most common drugs used in BPH treatment is finasteride, but data regarding its possible side effects are scarce. Thus, the aim of this study was to evaluate the effects of BPH and short-term (2 months) finasteride therapy on clinical, endocrinological, and reproductive parameters in dogs. Dogs were allocated into four experimental groups: Non-affected (n = 5), BPH (n = 5), Non-Affected-Finasteride (n = 5) and BPH-Finasteride (n = 5) groups. Dogs were evaluated monthly during 2 months by a complete breeding soundness examination, B-mode ultrasound and Doppler ultrasonography of the testicular artery, hormonal profile (testosterone, estrogen and dihydrotestosterone) and oxidative profile of the prostatic fluid. After 2 months, dogs were gonadectomized and testicles were subjected to histologic analysis. Finasteride treatment reduced dihydrotestosterone concentrations, without negative influence on semen quality and also reverted testicular hemodynamics changes of BPH. On the other hand, BPH was accompanied by significant changes in testosterone and estrogen concentrations and semen quality, mainly related to sperm kinetics alterations. In conclusion, BPH dogs have important hormonal and sperm alterations, however, short-term finasteride treatment (2 months) was able to reduce overall effects of BPH, thus representing a method of therapy for BPH treatment.
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Affiliation(s)
- Daniel S R Angrimani
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil
| | - Maíra M Brito
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil
| | - Bruno R Rui
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil
| | - Marcílio Nichi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil
| | - Camila I Vannucchi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil.
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7
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Chłopik A, Wysokińska A. Canine spermatozoa-What do we know about their morphology and physiology? An overview. Reprod Domest Anim 2019; 55:113-126. [PMID: 31782838 DOI: 10.1111/rda.13596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/25/2019] [Indexed: 11/27/2022]
Abstract
Spermatozoa are unique cells because of their morphological and physiological characteristics. They are produced during the process called spermatogenesis. Spermatogenesis consists of three phases: spermatocytogenesis, spermiogenesis and spermiation, during which spermatozoa undergo several changes. Spermatogenesis takes place within the seminiferous tubules containing two types of cells-the germ cells and the Sertoli cells-that alongside the Leydig cells, which play an important role when it comes to normal fertility. Everything is regulated by the hypothalamic-pituitary-gonadal axis and specific hormones due to multi-hormonal feedback systems. Spermatozoa possess morphological and physiological features, which are sometimes completely different from what is observed in various somatic cells. What is more, canine spermatozoa have specific characteristics making them special compared to the spermatozoa of other mammalian species. The metabolic energy production, which is crucial for the appropriate functioning of spermatozoa, can be fuelled by different metabolic pathways utilizing different chemical substrates. Inseparable from the oxidative phosphorylation process is the production of reactive oxygen species, which are both essential and toxic to spermatozoa. Furthermore, epididymis is a very important structure, responsible for the transport and maturation of spermatozoa, which are then stored in the last segment of epididymis-the epididymal cauda. Moreover, the retrieval of spermatozoa from the epididymides is crucial for the development of assisted reproduction techniques and sperm cryopreservation methods. The information gained from the research on domestic dogs might be transferred to their wild relatives, especially those species categorized as endangered.
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Affiliation(s)
- Angelika Chłopik
- Department of Animal Reproduction and Hygiene, Faculty of Life Sciences, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland
| | - Anna Wysokińska
- Department of Animal Reproduction and Hygiene, Faculty of Life Sciences, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland
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da Rosa Filho RR, Angrimani DSR, Brito MM, Nichi M, Vannucchi CI, Lucio CF. Susceptibility of epididymal sperm against reactive oxygen species in dogs. Anim Biotechnol 2019; 32:92-99. [PMID: 31437098 DOI: 10.1080/10495398.2019.1657126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In order to add information to physiology of sperm maturation and help to underline future antioxidant supplementation treatment to epididymal sperm, the aim of this study was to evaluate susceptibility of caput, corpus and cauda epididymal sperm to different reactive oxygen species (ROS) in dogs. Epididymal sperm was separately collected from each segment (caput, corpus and cauda) and subjected to 4 different ROS-challenges: superoxide anion, hydrogen peroxide, hydroxyl radical, malondialdehyde (MDA) or maintained as control. After 30 min of incubation in each ROS, sperm was evaluated for sperm kinetics, plasma and acrossomal membrane integrity, mitochondrial activity and resistance to oxidative stress. Decreased total and progressive sperm motility and rapid velocity at epididymal corpus occurred after exposure to hydrogen peroxide, hydroxyl radical and MDA. However, for cauda epididymis, hydrogen peroxide and malondialdehyde promoted higher deleterious effect regarding sperm motility and velocity. Only at cauda epididymis MDA decreased sperm mitochondrial activity index and no kinetics alterations (motility or velocity) occurred after exposure to superoxide anion in corpus and cauda epididymis. In conclusion, corpus and cauda epididymal sperm are highly susceptible to deleterious effect of hydrogen peroxide, malondialdehyde and hydroxyl radical. In addition, epididymal canine sperm is relatively resistant to superoxide anion damage.
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Affiliation(s)
- Roberto R da Rosa Filho
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
| | - Daniel S R Angrimani
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
| | - Maíra M Brito
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
| | - Marcílio Nichi
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
| | - Camila I Vannucchi
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
| | - Cristina F Lucio
- Department of Animal Reproduction - School of Veterinary Medicine and Animal Science, University of São Paulo, campus São Paulo, São Paulo, Brazil
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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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Angrimani DSR, Nagai KK, Rui BR, Bicudo LC, Losano JDA, Brito MM, Francischini MCP, Nichi M. Spermatic and oxidative profile of domestic cat (Felis catus
) epididymal sperm subjected to different cooling times (24, 48 and 72 hours). Reprod Domest Anim 2017; 53:163-170. [DOI: 10.1111/rda.13086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/20/2017] [Indexed: 01/24/2023]
Affiliation(s)
- DSR Angrimani
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - KK Nagai
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - BR Rui
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - LC Bicudo
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - JDA Losano
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - MM Brito
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - MCP Francischini
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
| | - M Nichi
- Department of Animal Reproduction; School of Veterinary Medicine and Animal Science; University of São Paulo; São Paulo Brazil
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11
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Cytoplasmic droplet acting as a mitochondrial modulator during sperm maturation in dogs. Anim Reprod Sci 2017; 181:50-56. [DOI: 10.1016/j.anireprosci.2017.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/24/2017] [Accepted: 03/26/2017] [Indexed: 12/11/2022]
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12
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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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13
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Nichi M, Rijsselaere T, Losano JDA, Angrimani DSR, Kawai GKV, Goovaerts IGF, Van Soom A, Barnabe VH, De Clercq JBP, Bols PEJ. Evaluation of epididymis storage temperature and cryopreservation conditions for improved mitochondrial membrane potential, membrane integrity, sperm motility and in vitro
fertilization in bovine epididymal sperm. Reprod Domest Anim 2016; 52:257-263. [DOI: 10.1111/rda.12888] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 10/10/2016] [Indexed: 11/27/2022]
Affiliation(s)
- M Nichi
- University of Sao Paulo; Sao Paulo Brazil
| | | | - JDA Losano
- University of Sao Paulo; Sao Paulo Brazil
| | | | - GKV Kawai
- University of Sao Paulo; Sao Paulo Brazil
| | | | | | - VH Barnabe
- University of Sao Paulo; Sao Paulo Brazil
| | | | - PEJ Bols
- University of Antwerp; Antwerp Belgium
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14
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Luvoni GC, Morselli MG. Canine epididymal spermatozoa: A hidden treasure with great potential. Reprod Domest Anim 2016; 52 Suppl 2:197-201. [PMID: 27757988 DOI: 10.1111/rda.12820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The hidden treasure represented by epididymal spermatozoa has great potential in the current reproductive technologies in dogs. In case of azoospermia or when a donor male accidentally dies or undergoes orchiectomy, the retrieval of epididymal spermatozoa opens new possibilities to generate progeny. Spermatozoa can be collected by different techniques from ex vivo or in vivo testicles and can be cryopreserved for a future use. Freeze tolerance of canine epididymal spermatozoa seems lower than that of ejaculated spermatozoa; however, puppies were born after artificial insemination with frozen epididymal semen, other than with fresh and chilled. Even though several aspects need to be further investigated, advances have been recently made in the use of epididymal spermatozoa in assisted reproduction in dogs.
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Affiliation(s)
- G C Luvoni
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, Milan, Italy
| | - M G Morselli
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, Milan, Italy
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