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Stevens A, Kashyap S, Crofut EH, Wang SE, Muratore KA, Johnson PJ, Zhou ZH. Structures of Native Doublet Microtubules from Trichomonas vaginalis Reveal Parasite-Specific Proteins as Potential Drug Targets. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.11.598142. [PMID: 38915691 PMCID: PMC11195118 DOI: 10.1101/2024.06.11.598142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Doublet microtubules (DMTs) are flagellar components required for the protist Trichomonas vaginalis ( Tv ) to swim through the human genitourinary tract to cause trichomoniasis, the most common non-viral sexually transmitted disease. Lack of DMT structures has prevented structure-guided drug design to manage Tv infection. Here, we determined the cryo-EM structure of native Tv- DMTs, identifying 29 unique proteins, including 18 microtubule inner proteins and 9 microtubule outer proteins. While the A-tubule is simplistic compared to DMTs of other organisms, the B-tubule features specialized, parasite-specific proteins, like Tv FAP40 and Tv FAP35 that form filaments near the inner and outer junctions, respectively, to stabilize DMTs and enable Tv locomotion. Notably, a small molecule, assigned as IP6, is coordinated within a pocket of Tv FAP40 and has characteristics of a drug molecule. This first atomic model of the Tv -DMT highlights the diversity of eukaryotic motility machinery and provides a structural framework to inform the rational design of therapeutics.
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Liu YS, Zhang YX, Wang XB, Wu QJ, Liu FH, Pan BC, Zhao YH. Associations between Meat and Vegetable Intake, Cooking Methods, and Asthenozoospermia: A Hospital-Based Case–Control Study in China. Nutrients 2022; 14:nu14091956. [PMID: 35565922 PMCID: PMC9104795 DOI: 10.3390/nu14091956] [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: 03/16/2022] [Revised: 04/18/2022] [Accepted: 04/29/2022] [Indexed: 11/16/2022] Open
Abstract
Background: The role of meat and vegetable intake in the development of asthenozoospermia has been controversial, and the role of cooking methods for meat and vegetables in the association has yet to be determined. The present study aimed to illuminate the relationship between the consumption and cooking methods of meat and vegetables and the risk of asthenozoospermia. Methods: In this hospital-based case–control study, we enrolled 552 patients with asthenozoospermia and 585 healthy controls. Dietary information was assessed using a validated self-administered food frequency questionnaire. Asthenozoospermia was diagnosed according to the fifth edition of the WHO laboratory manual for the examination and processing of human semen. Results: Participants in the highest tertile of total meat and unprocessed meat intake had a 44% and 39% lower risk of asthenozoospermia than those in the lowest tertile (OR = 0.56, 95% CI: 0.37, 0.87 and OR = 0.61, 95% CI: 0.40, 0.93), respectively. Participants with the highest processed meat consumption showed higher risk (OR = 1.44, 95% CI: 1.01, 2.06). Raw vegetable consumption was negatively associated with the risk of asthenozoospermia (OR = 0.67, 95% CI: 0.45, 0.98). The stir-frying cooking method for meat was associated with increased risk of asthenozoospermia (OR = 1.58, 95% CI: 1.02, 2.46). Conclusions: Intake of total meat, unprocessed meat, and raw vegetable may reduce asthenozoospermia risk, while higher consumption of processed meat may increase the risk. Cooking methods may play a role in these associations. These findings need to be confirmed in large and prospective cohort studies.
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Affiliation(s)
- Ya-Shu Liu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang 110004, China; (Y.-S.L.); (Q.-J.W.); (F.-H.L.)
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yi-Xiao Zhang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110004, China;
| | - Xiao-Bin Wang
- Center for Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China;
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang 110004, China; (Y.-S.L.); (Q.-J.W.); (F.-H.L.)
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Fang-Hua Liu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang 110004, China; (Y.-S.L.); (Q.-J.W.); (F.-H.L.)
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Bo-Chen Pan
- Center for Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China;
- Correspondence: (B.-C.P.); (Y.-H.Z.); Tel.: +86-24-96615 (B.-C.P. & Y.-H.Z.)
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang 110004, China; (Y.-S.L.); (Q.-J.W.); (F.-H.L.)
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Correspondence: (B.-C.P.); (Y.-H.Z.); Tel.: +86-24-96615 (B.-C.P. & Y.-H.Z.)
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Chen T, Fan D, Wang X, Mao C, Chu Y, Zhang H, Liu W, Ding S, Liu Q, Yuan M, Lu J. ICSI outcomes for infertile men with severe or complete asthenozoospermia. Basic Clin Androl 2022; 32:6. [PMID: 35382740 PMCID: PMC8981622 DOI: 10.1186/s12610-022-00155-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 02/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Severe or complete asthenozoospermia is a rare entity that can lead to male infertility. In this study, we explored whether different extents of severe or complete asthenozoospermia could affect intracytoplasmic sperm injection (ICSI) outcomes and compared the ICSI outcomes using testicular spermatozoa with those using ejaculated spermatozoa in couples with complete asthenozoospermia. RESULTS Ninety-seven couples with severe or complete asthenozoospermia who underwent ICSI between January 2014 and December 2018 were included. According to the sperm category used in ICSI, patients were categorized into four groups: ejaculated progressive motile sperm group (Ep-group), ejaculated non-progressive motile sperm group (En-group), ejaculated immotile sperm group (Ei-group), and testicular sperm group (TESE-group). We compared the baseline characteristics, hormone profile, semen parameters, normal fertilization, good-quality embryos on day 3, transferred embryos, and ICSI outcomes in the four groups. The clinical pregnancy rate was significantly increased in the Ep-group (65.4%, P = 0.019) and TESE-group (63.6%, P = 0.035) compared with that in the Ei-group (23.1%). The ongoing pregnancy rate in the Ei-group was significantly lower than that in the Ep-group (23.1% vs. 61.5%, P = 0.041). Moreover, the biochemical pregnancy rate, ongoing pregnancy rate, and live birth rate were much lower in the Ei-group than in the TESE-group (30.8% vs. 63.6%, 23.1% vs. 40.4% and 23.1% vs. 40.4%, respectively). CONCLUSIONS In couples with complete asthenozoospermia, testicular spermatozoa should be preferred to ejaculated spermatozoa for obtaining a better ICSI outcome. With the appropriate selection of testicular spermatozoa, the extent of severe or complete asthenozoospermia may not affect the ICSI outcomes. Future studies with a larger sample size are warranted to validate these findings.
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Affiliation(s)
- Tong Chen
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China. .,Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China. .,Department of Urology, The First Affiliated Hospital of Nanjing Medical University, 210000, Nanjing, P.R. China. .,Department of Urology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, 210029, Nanjing, P.R. China.
| | - Demin Fan
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China.,Department of Urology, Cheeloo College of Medicine, Shandong Qianfoshan Hospital, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Xianlong Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Changlin Mao
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China.,Department of Urology, The First Affiliated Hospital of Nanjing Medical University, 210000, Nanjing, P.R. China
| | - Yaru Chu
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China.,Department of Urology, The First Affiliated Hospital of Nanjing Medical University, 210000, Nanjing, P.R. China
| | - Haobo Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Wen Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Sentai Ding
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China
| | - Qingyong Liu
- Department of Urology, Cheeloo College of Medicine, Shandong Qianfoshan Hospital, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Mingzhen Yuan
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China.,Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China
| | - Jiaju Lu
- Department of Urology, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Road, 250021, Jinan, Shandong, P. R. China. .,Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, 250000, Jinan, Shandong, P.R. China.
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Baikampady SV. Vata dynamics with special reference to cardiac disorders - A cross-disciplinary approach. J Ayurveda Integr Med 2020; 11:432-439. [PMID: 33218848 PMCID: PMC7772479 DOI: 10.1016/j.jaim.2020.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 11/25/2022] Open
Abstract
Vata is one of the fundamental patho-physiological entities with unique and dynamic properties. All actions inside the body, whether voluntary or involuntary, are governed by Vayu. Actions involved during natural physiological calls or urges, are involuntary, but partially under voluntary control. Classical texts from Ayurveda state that such natural urges (NU) should be strictly attended without disturbing their natural flow. Some urges can be intentionally or inadvertently initiated (Udiran) or suppressed (Dhaaran), redirecting the normal flow of Vayu, leaving scopes for severe morbidities in the heart causing cardiovascular disorders (CVD). Since Vata has unique attribute of Vega (locomotion) that moves in a specific direction, its intensities can be quantified with the help of modern techniques. Few studies have objectively evaluated the intensities of NU like belching, sneezing, expulsion of flatus, etc. during normalcy, which may help us to determine their altered activity during morbidity. In spite of such studies, their relevance to CVD is inadequately explored. Hence, this article addresses details of such NU that lead to CVD alone, from classical texts of Ayurveda, conventional medicines and technology that quantify their intensities. Citing research articles from various journals using keywords were done to understand their mechanism along with their intensities. It was found that objective estimation of few NU was performed extensively whereas some had limitations. Theories from the classical texts confirm that physiological NU, if allowed to flow freely without any impedance, assures good health. It would certainly benefit the mankind if their pathologic state is timely detected so as to prevent disease progression in CVD.
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Moghadam MT, Hosseini G, Absalan F, Tabar MH, Nikbakht R. Effects of Vitamin D on Apoptosis and Quality of Sperm in Asthenozoospermia. JBRA Assist Reprod 2020; 24:316-323. [PMID: 32511900 PMCID: PMC7365542 DOI: 10.5935/1518-0557.20200009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 04/01/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Vitamin D receptor (VDR) is expressed in human spermatozoa. However, the role of vitamin D (VD) in human male reproduction has not yet been clarified. In this study, effects of VD on sperm parameters and its apoptosis in asthenozoospermic and healthy men were evaluated. METHODS The study was carried out on discharged semen samples of 80 asthenozoospermic and healthy men. The samples were divided into control and experimental groups (received 20 µMol of VD). This study assessed sperm motility using the Makler chamber, their morphology by Diff quick, apoptosis and necrosis by Annexin-V and TUNEL assays, and their chromatin integrity was assessed by Aniline blue and Toluidine blue staining, according to WHO guidelines. RESULTS The results revealed that: 1) the total number of motile sperms was increased by VD in both groups, but it was only significant in the asthenozoospermia group. 2) The progressive motility was increased with significant difference in both groups.3) Morphology of sperm did not show any changes due to VD in any of the groups. 4) Early apoptosis and necrosis of sperms were reduced in both groups, but the results of late apoptosis showed no statistical difference in these groups. 5) The percentage of positive toluidine blue was significantly decreased after using VD in the asthenozoospermia group. CONCLUSION VD could improve motility, early apoptosis, and sperm necrosis, especially in asthenozoospermic men and it could be used for therapeutic opportunities.
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Affiliation(s)
- Mahin Taheri Moghadam
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences,Ahvaz, Iran
- Fertility, Infertility and Perinatology Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ghazal Hosseini
- Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences,Ahvaz, Iran
| | - Forouzan Absalan
- Department of anatomical sciences, Abadan School of Medical Sciences, Abadan, Iran
| | - Mahmoud Hashemi Tabar
- Department of Anatomical Sciences, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences,Ahvaz, Iran
| | - Roshan Nikbakht
- Fertility, Infertility and Perinatology Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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6
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Valcarce DG, Genovés S, Riesco MF, Martorell P, Herráez MP, Ramón D, Robles V. Probiotic administration improves sperm quality in asthenozoospermic human donors. Benef Microbes 2017; 8:193-206. [PMID: 28343402 DOI: 10.3920/bm2016.0122] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The objective of this study is to analyse the effect of the ingestion of two selected antioxidant probiotics strains (Lactobacillus rhamnosus CECT8361 and Bifidobacterium longum CECT7347) on sperm quality parameters in asthenozoospermic males after three and six weeks of administration. Nine asthenozoospermic men without any medical treatment under similar diet conditions participated in the study. The quality of individual sperm samples was evaluated before (previous to ingestion), during (after 3 and 6 weeks of ingestion) and after probiotic administration (3 and 6 weeks after finishing the treatment). Sperm motility was evaluated by computer-assisted sperm analysis system, DNA fragmentation by sperm chromatin structure assay, cell viability by flow cytometry and measurement of intracellular H2O2 (reactive oxygen species; ROS) by flow cytometry using dichloro-dihydrofluorescein diacetate. Sperm motility was drastically improved after the treatment (approximately 6 fold change), DNA fragmentation was statistically reduced after probiotic administration from (approximately 1.2 fold change) and intracellular H2O2 level was decreased (approximately 3.5 fold change). Cell viability was not affected by the treatment. The significant improvement in sperm motility and the decrease in DNA fragmentation reported in this study provide preliminary evidence that probiotics could be administrated to improve motility and decrease DNA fragmentation and ROS levels in asthenozoospermic human males.
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Affiliation(s)
- D G Valcarce
- 1 Department of Molecular Biology and Cell Biology Area, University of León, 24071 León, Spain.,2 INDEGSAL, University of León, Campus de Vegazana, 24071 León, Spain
| | - S Genovés
- 3 Department of Food Biotechnology, Biópolis S.L., Parc Científic Universitat de València, Paterna, 46980 Valencia, Spain
| | - M F Riesco
- 1 Department of Molecular Biology and Cell Biology Area, University of León, 24071 León, Spain.,2 INDEGSAL, University of León, Campus de Vegazana, 24071 León, Spain
| | - P Martorell
- 3 Department of Food Biotechnology, Biópolis S.L., Parc Científic Universitat de València, Paterna, 46980 Valencia, Spain
| | - M P Herráez
- 1 Department of Molecular Biology and Cell Biology Area, University of León, 24071 León, Spain.,2 INDEGSAL, University of León, Campus de Vegazana, 24071 León, Spain
| | - D Ramón
- 3 Department of Food Biotechnology, Biópolis S.L., Parc Científic Universitat de València, Paterna, 46980 Valencia, Spain
| | - V Robles
- 1 Department of Molecular Biology and Cell Biology Area, University of León, 24071 León, Spain.,2 INDEGSAL, University of León, Campus de Vegazana, 24071 León, Spain
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Montanino Oliva M, Poverini R, Lisi R, Carra MC, Lisi F. Treating Woman with Myo-Inositol Vaginal Suppositories Improves Partner's Sperm Motility and Fertility. Int J Endocrinol 2016; 2016:7621942. [PMID: 27403162 PMCID: PMC4923529 DOI: 10.1155/2016/7621942] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 05/17/2016] [Indexed: 02/03/2023] Open
Abstract
Motility is the feature that allows spermatozoa to actively reach and penetrate the female gamete during fertilization. When this function is altered, and especially decreased, troubles in conceiving may occur. In this study, we demonstrated that treating fertile women with myo-inositol (MI) vaginal suppositories ameliorated their partners' sperm motility and also positively affected their conceiving capacity, without changes in cervical mucus structural and biochemical characteristics. Indeed, by means of the postcoital test on female cervical mucus, a significant improvement especially in progressive sperm motility was recorded after MI suppository use. Concomitantly, after MI treatment, a reduction of immotile spermatozoa percentage was observed. Importantly, MI vaginal supplementation positively correlated with a pregnancy for 5 of the 50 couples enrolled in the study, leading us to speculate that this substance may substantially contribute to create in the cervical mucus an ideal milieu that makes spermatozoa more motile and functionally able to fertilize. Even though the detailed mechanism is still unclear, these results should encourage MI vaginal use for the clinical improvement of male infertility, through their partners.
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Affiliation(s)
- Mario Montanino Oliva
- Department of Obstetrics & Gynecology, Santo Spirito Hospital, 00100 Rome, Italy
- IVF Unit, Villa Mafalda Clinic, 00100 Rome, Italy
- *Mario Montanino Oliva:
| | | | - Rosella Lisi
- IVF Unit, Villa Mafalda Clinic, 00100 Rome, Italy
| | | | - Franco Lisi
- IVF Unit, Villa Mafalda Clinic, 00100 Rome, Italy
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Calogero AE, Gullo G, La Vignera S, Condorelli RA, Vaiarelli A. Myoinositol improves sperm parameters and serum reproductive hormones in patients with idiopathic infertility: a prospective double-blind randomized placebo-controlled study. Andrology 2015; 3:491-5. [PMID: 25854593 DOI: 10.1111/andr.12025] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 01/20/2015] [Accepted: 02/09/2015] [Indexed: 01/16/2023]
Abstract
Male infertility is a multifactorial disorder that affects a significant percentage of couples. Its etiology and pathogenesis remain elusive in about one-third of the cases; this is referred to as idiopathic infertility. Inositols mediate the sperm processes involved into oocyte fertilization, such as penetration of the ovum cumulus oophorus, binding with the zona pellucida and the acrosome reaction. The aim of this double-blind, randomized, placebo-controlled trial was to evaluate the efficacy and safety of myoinositol (the most abundant form of inositols present in nature) treatment in men with idiopathic infertility. To accomplish this, we evaluated the effects of myoinositol on sperm parameters and reproductive hormones at baseline and after 3 months of treatment in men with idiopathic infertility. No adverse reaction was observed. Myoinositol significantly increased the percentage of acrosome-reacted spermatozoa, sperm concentration, and total count and progressive motility compared to placebo. In addition, myoinositol rebalanced serum luteinizing hormone, follicle-stimulating hormone, and inhibin B concentrations. The clinical improvement of idiopathic infertile patients should encourage myoinositol use for the treatment of this disorder, even though its detailed mechanisms at the testicular level remain still unclear.
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Affiliation(s)
- A E Calogero
- Section of Endocrinology, Andrology and Internal Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - G Gullo
- Dipartimento di Ostetricia Ginecologia e Medicina Interna, Università degli Studi di Messina, Messina, Italy
| | - S La Vignera
- Section of Endocrinology, Andrology and Internal Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - R A Condorelli
- Section of Endocrinology, Andrology and Internal Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - A Vaiarelli
- Reproductive Medicine Unit, Policlinico Universitario di Messina, Messina, Italy
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Zhou JH, Zhou QZ, Lyu XM, Zhu T, Chen ZJ, Chen MK, Xia H, Wang CY, Qi T, Li X, Liu CD. The Expression of Cysteine-Rich Secretory Protein 2 (CRISP2) and Its Specific Regulator miR-27b in the Spermatozoa of Patients with Asthenozoospermia1. Biol Reprod 2015; 92:28. [DOI: 10.1095/biolreprod.114.124487] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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10
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Mitchell V, Sigala J, Jumeau F, Ballot C, Peers MC, Decanter C, Rives N, Perdrix A, Rigot JM, Escalier D. [ICSI treatment in severe asthenozoospermia]. ACTA ACUST UNITED AC 2012. [PMID: 23182233 DOI: 10.1016/j.gyobfe.2012.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the management of asthenozoospermia, the spermogram-spermocytogram plays an important role during diagnosis. It is of major importance to distinguish between necrozoospermia and sperm vitality. An ultrastructural study of spermatozoa is processed in the case of primary infertility without female implication, severe, unexplained and irreversible asthenozoospermia, sperm vitality at least 50 % and normal concentration of spermatozoa. Ultrastructural flagellar abnormalities are numerous and involve most spermatozoa. ICSI provides a suitable solution for patients with sperm flagellar defects to conceive children with their own gametes but the rate of ICSI success may be influenced by the type of flagellar abnormality. Some fertilization and birth rate failures which are related to some flagellar abnormalities might occur.
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Affiliation(s)
- V Mitchell
- EA4308 gamétogenèse et qualité du gamète, 59037 Lille cedex, France.
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11
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Ortega C, Verheyen G, Raick D, Camus M, Devroey P, Tournaye H. Absolute asthenozoospermia and ICSI: what are the options? Hum Reprod Update 2011; 17:684-92. [PMID: 21816768 DOI: 10.1093/humupd/dmr018] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Complete asthenozoospermia, i.e. 100% immotile spermatozoa in the ejaculate, is reported at a frequency of 1 of 5000 men. Its diagnosis implies a poor fertility prognosis even with ICSI. It is extremely important to distinguish between two different groups of patients with complete asthenozoospermia, i.e. virtual or absolute asthenozoospermia. With the former group having some motile spermatozoa after extensive processing of the semen, absolute asthenozoospermia can be associated with metabolic deficiencies, ultrastructural abnormalities of the sperm flagellum, necrozoospermia otherwise it can be idiopathic. In the management of persistent absolute asthenozoospermia, it is very important to elucidate its nature and whenever possible to correct the potential causes. METHODS We reported data published in the literature on the aetiology of absolute asthenozoospermia and the different techniques to improve ICSI outcome. We propose an algorithm for diagnosis and treatment of this condition. RESULTS Different results regarding fertilization, cleavage and pregnancy rate have been published in patients with absolute asthenozoospermia undergoing ICSI. However, the results vary widely depending on the sperm origin and the technique applied for immotile sperm selection. The percentage of viable spermatozoa varies between 0 and 100%. CONCLUSIONS Absolute immotile spermatozoa is one of the most important causes of reduced fertilization and pregnancy rates after ICSI and different techniques are used to improve ICSI outcomes. However, it still remains unclear which is the best technique to improve the pregnancy outcomes in these couples.
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Affiliation(s)
- C Ortega
- Centre for Reproductive Medicine, University Hospital Dutch-speaking Brussels Free University, Laarbeeklaan 101, Brussels, Belgium.
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12
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Akashi T, Mizuno I, Okumura A, Fuse H. Usefulness of sperm quality analyzer-V (SQA-V) for the assessment of sperm quality in infertile men. ACTA ACUST UNITED AC 2005; 51:437-42. [PMID: 16214729 DOI: 10.1080/014850190959081] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was to evaluate the correlation of new of Sperm Quality Analyzer (SQA-V) with the computer-assisted sperm analysis (CASA) and manual semen analysis estimates. One hundred five fresh semen samples were analyzed using SQA-V and CASA and manual semen analysis. Significant correlations of sperm concentration (p < 0.0001), sperm motility (p < 0.0001), and normal morphology (p < 0.0001) were observed between SQA-V variables and manual semen analysis estimates. There also were significant correlations of sperm concentration (p < 0.0001), sperm motility (p < 0.0001), and sperm velocity (p = 0.0235) between SQA-V variables and CASA estimates. Meanwhile, it did not correlate with amplitude of lateral head displacement, beat cross frequency, lineality assessed by CASA. The value of the sperm concentration and the sperm motility measured by SQA-V showed high correlations with the value of those measured by CASA and manual semen analysis. In addition, velocity and sperm morphology may also be evaluated to some extent using SQA-V.
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Affiliation(s)
- T Akashi
- Department of Urology,Faculty of Medicine, National University Corporation, Toyama Medical andPharmaceutical University, Toyama, Japan.
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Hirano Y, Shibahara H, Shimada K, Yamanaka S, Suzuki T, Takamizawa S, Motoyama M, Suzuki M. Accuracy of sperm velocity assessment using the Sperm Quality Analyzer V. Reprod Med Biol 2004; 2:151-157. [PMID: 29699178 DOI: 10.1111/j.1447-0578.2003.00039.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Aim: The correct diagnosis of the functional capacity of human sperm is limited. The Sperm Quality Analyzer (SQA) with the visualization system (SQA V, Medical Electronic System, Hatavorzo, Israel), an upgraded version of SQA, was recently developed to provide a rapid and low-cost quantitative evaluation of sperm quality as well as sperm velocity assessment. The aim of the present study was to evaluate whether the SQA V's new parameters correlate with computer-aided sperm analysis (CASA) estimates. Methods: Semen quality analysis of 66 fresh samples was determined using SQA V and CASA. Results: There were significant correlations of total sperm concentration (P < 0.001), sperm motility (P = 0.145), and percentage of progressive motile sperm (P = 0.001), between the SQA V variables and the CASA estimates. The sperm velocity assessed by SQA V was significantly correlated with some of the CASA estimates, including sperm motility (P = 0.001), the percentage of progressively motile sperm (P < 0.001), straight-line velocity (P < 0.001), curvilinear velocity (P < 0.001) and average path velocity (P < 0.001). However, it did not correlate with amplitude of lateral head displacement, beat cross frequency, straightness, or linearity, assessed by CASA. Conclusion: Assessment of sperm motility has been shown as one of the important factors to predict the functional capacity of human sperm. On the basis of the present study, SQA V is considered useful for screening sperm quality in the management of male infertility. (Reprod Med Biol 2003; 2: 151-157).
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Affiliation(s)
- Yuki Hirano
- Department of Obstetrics and Gynecology, Jichi Medical School and
| | | | - Kazuhiko Shimada
- Department of Obstetrics and Gynecology, Jichi Medical School and
| | - Seiji Yamanaka
- Department of Obstetrics and Gynecology, Jichi Medical School and
| | - Tatsuya Suzuki
- Department of Obstetrics and Gynecology, Jichi Medical School and
| | | | | | - Mitsuaki Suzuki
- Department of Obstetrics and Gynecology, Jichi Medical School and
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Schmiedehausen K, Kat S, Albert N, Platsch G, Wildt L, Kuwert T. Nucl Med Commun 2003; 24:865-870. [DOI: 10.1097/00006231-200308000-00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Schmiedehausen K, Kat S, Albert N, Platsch G, Wildt L, Kuwert T. Determination of velocity of tubar transport with dynamic hysterosalpingoscintigraphy. Nucl Med Commun 2003; 24:865-70. [PMID: 12869818 DOI: 10.1097/01.mnm.0000084577.51410.c4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Transport of 99mTc labelled albumin macroaggregates (MAA) can be used as a substitute for assessing transport of spermatozoa within the female genital tract. As yet, the velocity of tubar MAA transport has not been systematically studied in a large group. Dynamic hysterosalpingoscintigraphy (HSS) was performed after intrauterine instillation of 10-20 MBq 99mTc-MAA in 88 pre-ovulatory women suffering from infertility. They had to have anatomical patency of both tubes and at least one enlarged follicle. The direction and the latency of transport were evaluated. Forty-four per cent of patients exhibited MAA transport only to the dominant follicle, 31% to both ovaries and 16% to the contralateral ovary. In 9% no transport was visible. Fifty per cent of all patients studied exhibited MAA transport to the dominant follicle within 30 s, 75% within 20 min. Transport velocity in women having bilateral or ipsilateral transport did not differ significantly. There was no significant correlation between the size of the follicle and transport velocity. We conclude that in the majority of cases MAA transport occurs within 30 s after instillation. The variation in transport time between 30 s and 20 min suggests that dynamic scintigraphy is, in principle, better suited to a refined analysis of tubar function than static HSS.
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Affiliation(s)
- K Schmiedehausen
- Clinic of Nuclear Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Germany.
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16
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Conquer JA, Martin JB, Tummon I, Watson L, Tekpetey F. Effect of DHA supplementation on DHA status and sperm motility in asthenozoospermic males. Lipids 2000; 35:149-54. [PMID: 10757545 DOI: 10.1007/bf02664764] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The effects of supplementation with docosahexaenoic acid (DHA) on DHA levels in serum, seminal plasma, and sperm of asthenozoospermic men as well as on sperm motility were examined in a randomized, double-blind, placebo-controlled manner. Asthenozoospermic men (n = 28; < or =50% motility) were supplemented with 0, 400, or 800 mg DHA/d for 3 mon. Sperm motility and the fatty acid composition of serum, seminal plasma, and sperm phospholipid were determined before and after supplementation. In serum, DHA supplementation resulted in decreases in 22:4n-6 (-30% in the 800-mg DHA group only) and total n-6 (-6 and -12% in the 400- and 800-mg DHA groups, respectively) fatty acids. Increases were noted in DHA (71 and 131% in the 400- and 800-mg DHA groups, respectively), total n-3 fatty acids (42 and 67% in the 400- and 800-mg DHA groups, respectively), and the n-3/n-6 ratio (50 and 93% in the 400- and 800-mg DHA groups, respectively). In seminal plasma, DHA supplementation resulted in a decrease in 22:4n-6 (-31% in the 800-mg DHA group only) and an increase in the ratio of n-3 to n-6 (35 and 33% in the 400- and 800-mg DHA groups, respectively). There were insignificant increases in DHA and total n-3 fatty acids. In sperm, decreases were noted in 22:4n-6 (-37 and -31% in the 400- and 800-mg DHA groups, respectively). There were no other changes. There was no effect of DHA supplementation on sperm motility. The results show that dietary DHA supplementation results in increased serum--and possibly seminal plasma--phospholipid DHA levels, without affecting the incorporation of DHA into the spermatozoa phospholipid in asthenozoospermic men. This inability of DHA to be incorporated into sperm phospholipid is most likely responsible for the observed lack of effect of DHA supplementation on sperm motility.
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Affiliation(s)
- J A Conquer
- Department of Human Biology and Nutritional Sciences, University of Guelph, Ontario, Canada.
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17
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Zheng RL, Zhang H. Effects of ferulic acid on fertile and asthenozoospermic infertile human sperm motility, viability, lipid peroxidation, and cyclic nucleotides. Free Radic Biol Med 1997; 22:581-6. [PMID: 9013120 DOI: 10.1016/s0891-5849(96)00272-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The capacity of human sperm fertilization principally depends on sperm motility and membrane integrity. Reactive oxygen species, such as superoxide anion and hydrogen peroxide, are known to impair sperm motility and membrane integrity by inducing membrane lipid peroxidation (LPO). Ferulic acid (FA), an effective constituent in various medicinal herbs, has recently been shown to scavenge oxygen free radicals and increase the intracellular cAMP and cGMP. The aim of this study is to investigate the effects of FA on human sperm motility, viability, lipid peroxidation, and cyclic nucleotides in fertile and asthenozoospermic infertile individuals in vitro. The sperm samples were obtained from 10 fertile volunteers and 10 asthenozoospermic infertile patients. Washed spermatozoa were incubated at 37 degrees C in Ham's F-10 medium with 0, 0.1, 0.2, 0.4, 0.8, or 1.6 mM of FA. Samples were analyzed for viability, determined by eosin-Y dye exclusion method at 0, 1, 2, 3, 5, and 6 h of incubation; motility, determined by the trans-membrane migration method within 2 h of incubation; LPO, determined by thiobarbituric acid (TBA) method at 3 h of incubation and the intracellular cAMP and cGMP, determined, respectively, by 3H-cAMP and 125I-cGMP radioimmunoassay at 3 h of incubation. The results showed: in both fertile and infertile spermatozoa, the viability, trans-membrane migration ratio (TMMR) and the levels of intracellular cAMP and cGMP in FA-treated spermatozoa were significantly higher than those of spermatozoa in control groups, while TBA-reactive substances contents in treated spermatozoa were significantly lower than those in control spermatozoa. The effects of FA on these processes were concentration dependent. These data suggested that FA is beneficial to sperm viability and motility in both fertile and infertile individuals, and that reduction of lipid peroxidative damage to sperm membranes and increase of intracellular cAMP and cGMP may be involved in these benefits. It is possible that FA may be used for cure of asthenozoospermic infertility.
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Affiliation(s)
- R L Zheng
- Department of Biology, Lanzhou University, P.R. China
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18
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Zhang H, Zheng RL. Possible role of nitric oxide on fertile and asthenozoospermic infertile human sperm functions. Free Radic Res 1996; 25:347-54. [PMID: 8889498 DOI: 10.3109/10715769609149057] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The capacity of human sperm fertilization is principally dependent on sperm motility and membrane integrity. Oxygen-derived free radicals, such as superoxide anion, are known to impair sperm motility and membrane integrity by inducing membrane lipid peroxidation (LPO). Nitric oxide (NO), a biologically active free radical, has recently been shown to inactivate superoxide and increase intracellular guanosine-3', 5'-cyclic monophosphate (cGMP). The aim of this study is to investigate the effects of NO on human sperm motility, viability, lipid peroxidation and cGMP in fertile and asthenozoospermic infertile individuals in vitro. Semen samples were obtained from 10 fertile volunteers and 10 asthenozoospermic infertile patients. Washed spermatozoa were incubated at 37 degrees C in Ham's F-10 medium with 0, 25, 50, 100, 200, or 400nM sodium nitroprusside (SNP, Na2 [Fe(CN) 5NO] 2H2O), a nitric oxide releaser. Samples were analyzed for viability, determined by eosin-Y dye exclusion method at 0, 1, 2, 3, 5 and 6 h of incubation; motility, determined by the trans-membrane migration method within 2 h of incubation; LPO determined by malondialdehyde (MDA)-thiobarbituric acid method at 3 h of incubation; and the intracellular cGMP, determined by 125I-cGMP radioimmunoassay at 3 h of incubation. The results showed: in both fertile and infertile samples, viability, trans-membrane migration ratio and the levels of intracellular cGMP in 25-100nM SNP-treated spermatozoa were significantly higher than those in control groups, while MDA contents in treated groups were significantly lower than those in controls. However, when concentrations of SNP increased to 200-400nM, the opposite effects were exhibited. The effects of SNP on these processes were biphasic within 25-400nM. The most effective concentration was 100nM. These data suggested that NO is beneficial to sperm viability and motility in both fertile and infertile individuals, and that reduction of lipid peroxidative damage to sperm membranes and increase of intracellular cGMP may be involved in these benefits.
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Affiliation(s)
- H Zhang
- Department of Biology, Lanzhou University, P.R. China
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Pilikian S, Adeleine P, Czyba JC, Guérin JF. Kinetic activity of spermatozoa from fertile subjects and asthenozoospermic infertile patients. Andrologia 1993; 25:341-4. [PMID: 8279706 DOI: 10.1111/j.1439-0272.1993.tb02739.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The motility characteristics of spermatozoa from asthenozoospermic semen were investigated and compared to the same parameters in fertile semen. The motility characteristics assessed by the CellSoft semen analyser (CRYO Resources Ltd, NY) were the following: curvilinear velocity (VCL), straight line velocity (VSL), amplitude of lateral head displacement (ALH), linearity (%LIN), and beat cross frequency (BCF). Analysis of the data indicated a decreased kinetic activity in the spermatozoa from the asthenozoospermic group which is expressed as a highly significant decrease (P < 0.002) in the VCL and VSL compared to velocities from normospermic samples. Moreover, percentage linearity and ALH were also statistically lower (P < 0.05) in this group. However, no difference was evidenced for the BCF.
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Affiliation(s)
- S Pilikian
- Laboratorie de Biologie de la Reproduction et du Développement, Faculté de Médecine, Université Claude Bernard, Lyon, France
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20
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Freund M, Oliveira N. Visual versus cinemicrographic evaluation of human sperm motility and morphology. ARCHIVES OF ANDROLOGY 1987; 19:25-32. [PMID: 3426337 DOI: 10.3109/01485018708986797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ratings of human sperm motility by visual estimation through the microscope remain important measures of semen quality and of male fertility. More objective methods, including cinemicrography, time lapse photography, and videomicrography, are advocated. Subjective (visual) and objective (cinemicrographic) ratings of motility were compared. Sixty workers in 30 laboratories rated motilities of 40 specimens on motion picture film, and motilities were also measured by cinephotomicrographic methods. The morphology of each of the motile and immotile sperm was rated. In 34 of 40 specimens visual ratings were higher (range = +2 to +31%) than actual percentage motility. Specimens with both high sperm concentration and forward progression received the highest overestimations by visual rating. This was especially apparent in specimens with the highest motility. There was a statistically significant positive relationship between sperm motility and morphology rated on a one-by-one basis, but the relationship was too small to influence the visual rating of human sperm motility.
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Affiliation(s)
- M Freund
- Research Division, University of Medicine and Dentistry of New Jersey, School of Osteopathic Medicine, Camden 08103
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