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Deng T, Wang W, Fu Z, Xie Y, Zhou Y, Pu J, Chen K, Yao B, Li X, Yao J. Lipidomics random forest algorithm of seminal plasma is a promising method for enhancing the diagnosis of necrozoospermia. Metabolomics 2024; 20:57. [PMID: 38773045 PMCID: PMC11108888 DOI: 10.1007/s11306-024-02118-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/20/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Despite the clear clinical diagnostic criteria for necrozoospermia in andrology, the fundamental mechanisms underlying it remain elusive. This study aims to profile the lipid composition in seminal plasma systematically and to ascertain the potential of lipid biomarkers in the accurate diagnosis of necrozoospermia. It also evaluates the efficacy of a lipidomics-based random forest algorithm model in identifying necrozoospermia. METHODS Seminal plasma samples were collected from patients diagnosed with necrozoospermia (n = 28) and normozoospermia (n = 28). Liquid chromatography-mass spectrometry (LC-MS) was used to perform lipidomic analysis and identify the underlying biomarkers. A lipid functional enrichment analysis was conducted using the LION lipid ontology database. The top 100 differentially significant lipids were subjected to lipid biomarker examination through random forest machine learning model. RESULTS Lipidomic analysis identified 46 lipid classes comprising 1267 lipid metabolites in seminal plasma. The top five enriched lipid functions as follows: fatty acid (FA) with ≤ 18 carbons, FA with 16-18 carbons, monounsaturated FA, FA with 18 carbons, and FA with 16 carbons. The top 100 differentially significant lipids were subjected to machine learning analysis and identified 20 feature lipids. The random forest model identified lipids with an area under the curve > 0.8, including LPE(20:4) and TG(4:0_14:1_16:0). CONCLUSIONS LPE(20:4) and TG(4:0_14:1_16:0), were identified as differential lipids for necrozoospermia. Seminal plasma lipidomic analysis could provide valuable biochemical information for the diagnosis of necrozoospermia, and its combination with conventional sperm analysis may improve the accuracy and reliability of the diagnosis.
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Affiliation(s)
- Tianqin Deng
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Wanxue Wang
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Zhihong Fu
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Yuli Xie
- Newborn Screening Centre, Shenzhen Maternity & Child Healthcare Hospital, Shenzhen, China
| | - Yonghong Zhou
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Jiangbo Pu
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Kexin Chen
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China
| | - Bing Yao
- Reproductive Medicine Centre, Nanjing Jinling Hospital, The First School of Clinical Medicine, Southern Medical University (General Hospital of Eastern Military Region), Nanjing, China
| | - Xuemei Li
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China.
| | - Jilong Yao
- Reproductive Medicine Centre, Shenzhen Maternity & Child Healthcare Hospital, Fuqiang Road No.3012, Shenzhen, 51807, China.
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Liu L, Huang W, Luo K, Zeng Y, Shao Y, Long Z. Relationship between semen parameters, serum InhB, and INSL-3 levels, and the degree of varicocele. Clinics (Sao Paulo) 2024; 79:100339. [PMID: 38330789 PMCID: PMC10864834 DOI: 10.1016/j.clinsp.2024.100339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/12/2023] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Varicocele is an abnormal expansion of the pampininias venous plexus in the scrotum, resulting in impaired sperm production and reduced sperm quality. The exact pathophysiological mechanism leading to varicocele-related infertility has not been fully elucidated. Although treatable, varicocele may lead to male infertility. OBJECTIVE To investigate the relationship between semen parameters, serum InhB and INSL-3 levels, and the degree of varicocele in male patients. METHODS Serum InhB and INSL-3 were detected. To evaluate the relationship between semen parameters and serum InhB and INSL-3 levels. To evaluate the value of semen parameters and serum InhB and INSL-3 levels in distinguishing disease severity in patients with varicocele. RESULTS Serum INSL-3 in patients with varicocele decreased with the severity of the disease. Serum INSL-3 was positively correlated with total sperm count and frequency of normal sperm morphology. There was a weak correlation between serum InhB and semen volume, concentration, and total sperm. Patients with different disease severity were similar within the groups, with partial overlap or similarity between varicocele Grade I and Grade II, and significant differences between Grade III and Grade I and II. Semen volume, concentration, total sperm, normal sperm morphology, and serum InhB and INSL-3 levels could distinguish the degree of varicocele. CONCLUSION Semen parameters and the combination of serum InhB and INSL-3 levels in patients with varicocele are closely related to the severity of the disease. Serum INSL-3 is expected to be a potential biomarker for early clinical intervention.
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Affiliation(s)
- Lei Liu
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China
| | - WenJie Huang
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China.
| | - KeBing Luo
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China
| | - YiZhou Zeng
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China
| | - YunHao Shao
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China
| | - ZongMin Long
- Department of Urinary Surgery, The First people's hospital of Zunyi City (The third affiliated hospital of Zunyi Medical University), Zunyi, Guizhou Province, China
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Di Nisio A, De Toni L, Sabovic I, Vignoli A, Tenori L, Dall’Acqua S, Sut S, La Vignera S, Condorelli RA, Giacone F, Ferlin A, Foresta C, Garolla A. Lipidomic Profile of Human Sperm Membrane Identifies a Clustering of Lipids Associated with Semen Quality and Function. Int J Mol Sci 2023; 25:297. [PMID: 38203468 PMCID: PMC10778809 DOI: 10.3390/ijms25010297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Reduced sperm motility and/or count are among the major causes of reduced fertility in men, and sperm membranes play an important role in the spermatogenesis and fertilization processes. However, the impact of sperm lipid composition on male fertility remains under-investigated. The aim of the present study was to perform a lipidomic analysis of human sperm membranes: we performed an untargeted analysis of membrane lipid composition in fertile (N = 33) and infertile subjects (N = 29). In parallel, we evaluated their serum lipid levels. Twenty-one lipids were identified by their mass/charge ratio and post-source decay spectra. Sulfogalactosylglycerolipid (SGG, seminolipid) was the most abundant lipid component in the membranes. In addition, we observed a significant proportion of PUFAs. Important differences have emerged between the fertile and infertile groups, leading to the identification of a lipid cluster that was associated with semen parameters. Among these, cholesterol sulfate, SGG, and PUFAs represented the most important predictors of semen quality. No association was found between the serum and sperm lipids. Dietary PUFAs and SGG have acknowledged antioxidant functions and could, therefore, represent sensitive markers of sperm quality and testicular function. Altogether, these results underline the important role of sperm membrane lipids, which act independently of serum lipids levels and may rather represent an independent marker of reproductive function.
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Affiliation(s)
- Andrea Di Nisio
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
| | - Luca De Toni
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
| | - Iva Sabovic
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
| | - Alessia Vignoli
- Magnetic Resonance Center (CERM) at the Department of Chemistry “Ugo Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy; (A.V.); (L.T.)
| | - Leonardo Tenori
- Magnetic Resonance Center (CERM) at the Department of Chemistry “Ugo Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy; (A.V.); (L.T.)
- Consorzio Interuniversitario Risonanze Magnetiche MetalloProteine (CIRMMP), 50019 Sesto Fiorentino, Italy
| | - Stefano Dall’Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35129 Padova, Italy; (S.D.); (S.S.)
| | - Stefania Sut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35129 Padova, Italy; (S.D.); (S.S.)
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, 95125 Catania, Italy; (S.L.V.); (R.A.C.)
| | - Rosita Angela Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, 95125 Catania, Italy; (S.L.V.); (R.A.C.)
| | - Filippo Giacone
- Centro HERA-Unità di Medicina della Riproduzione, Via Barriera del Bosco, 51/53, Sant’Agata li Battiati, 95030 Catania, Italy;
| | - Alberto Ferlin
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
| | - Carlo Foresta
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Andrea Garolla
- Department of Medicine, University of Padova, 35128 Padova, Italy; (A.D.N.); (L.D.T.); (I.S.); (A.F.); (A.G.)
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Horta Remedios M, Liang W, González LN, Li V, Da Ros VG, Cohen DJ, Zaremberg V. Ether lipids and a peroxisomal riddle in sperm. Front Cell Dev Biol 2023; 11:1166232. [PMID: 37397249 PMCID: PMC10309183 DOI: 10.3389/fcell.2023.1166232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
Sperm are terminally differentiated cells that lack most of the membranous organelles, resulting in a high abundance of ether glycerolipids found across different species. Ether lipids include plasmalogens, platelet activating factor, GPI-anchors and seminolipid. These lipids play important roles in sperm function and performance, and thus are of special interest as potential fertility markers and therapeutic targets. In the present article, we first review the existing knowledge on the relevance of the different types of ether lipids for sperm production, maturation and function. To further understand ether-lipid metabolism in sperm, we then query available proteomic data from highly purified sperm, and produce a map of metabolic steps retained in these cells. Our analysis pinpoints the presence of a truncated ether lipid biosynthetic pathway that would be competent for the production of precursors through the initial peroxisomal core steps, but devoid of subsequent microsomal enzymes responsible for the final synthesis of all complex ether-lipids. Despite the widely accepted notion that sperm lack peroxisomes, the thorough analysis of published data conducted herein identifies nearly 70% of all known peroxisomal resident proteins as part of the sperm proteome. In view of this, we highlight open questions related to lipid metabolism and possible peroxisomal functions in sperm. We propose a repurposed role for the truncated peroxisomal ether-lipid pathway in detoxification of products from oxidative stress, which is known to critically influence sperm function. The likely presence of a peroxisomal-derived remnant compartment that could act as a sink for toxic fatty alcohols and fatty aldehydes generated by mitochondrial activity is discussed. With this perspective, our review provides a comprehensive metabolic map associated with ether-lipids and peroxisomal-related functions in sperm and offers new insights into potentially relevant antioxidant mechanisms that warrant further research.
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Affiliation(s)
| | - Weisheng Liang
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Lucas N. González
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Buenos Aires, Argentina
| | - Victoria Li
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Vanina G. Da Ros
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Buenos Aires, Argentina
| | - Débora J. Cohen
- Instituto de Biología y Medicina Experimental (IByME-CONICET), Buenos Aires, Argentina
| | - Vanina Zaremberg
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
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Dasgupta M, Kumaresan A, Saraf KK, Nag P, Sinha MK, Aslam M. K. M, Karthikkeyan G, Prasad TSK, Modi PK, Datta TK, Ramesha K, Manimaran A, Jeyakumar S. Deep Metabolomic Profiling Reveals Alterations in Fatty Acid Synthesis and Ketone Body Degradations in Spermatozoa and Seminal Plasma of Astheno-Oligozoospermic Bulls. Front Vet Sci 2022; 8:755560. [PMID: 35087889 PMCID: PMC8787163 DOI: 10.3389/fvets.2021.755560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022] Open
Abstract
Male fertility is extremely important in dairy animals because semen from a single bull is used to inseminate several thousand females. Asthenozoospermia (reduced sperm motility) and oligozoospermia (reduced sperm concentration) are the two important reasons cited for idiopathic infertility in crossbred bulls; however, the etiology remains elusive. In this study, using a non-targeted liquid chromatography with tandem mass spectrometry-based approach, we carried out a deep metabolomic analysis of spermatozoa and seminal plasma derived from normozoospermic and astheno-oligozoospermic bulls. Using bioinformatics tools, alterations in metabolites and metabolic pathways between normozoospermia and astheno-oligozoospermia were elucidated. A total of 299 and 167 metabolites in spermatozoa and 183 and 147 metabolites in seminal plasma were detected in astheno-oligozoospermic and normozoospermic bulls, respectively. Among the mapped metabolites, 75 sperm metabolites were common to both the groups, whereas 166 and 50 sperm metabolites were unique to astheno-oligozoospermic and normozoospermic bulls, respectively. Similarly, 86 metabolites were common to both the groups, whereas 45 and 37 seminal plasma metabolites were unique to astheno-oligozoospermic and normozoospermic bulls, respectively. Among the differentially expressed metabolites, 62 sperm metabolites and 56 seminal plasma metabolites were significantly dysregulated in astheno-oligozoospermic bulls. In spermatozoa, selenocysteine, deoxyuridine triphosphate, and nitroprusside showed significant enrichment in astheno-oligozoospermic bulls. In seminal plasma, malonic acid, 5-diphosphoinositol pentakisphosphate, D-cysteine, and nicotinamide adenine dinucleotide phosphate were significantly upregulated, whereas tetradecanoyl-CoA was significantly downregulated in the astheno-oligozoospermia. Spermatozoa from astheno-oligozoospermic bulls showed alterations in the metabolism of fatty acid and fatty acid elongation in mitochondria pathways, whereas seminal plasma from astheno-oligozoospermic bulls showed alterations in synthesis and degradation of ketone bodies, pyruvate metabolism, and inositol phosphate metabolism pathways. The present study revealed vital information related to semen metabolomic differences between astheno-oligozoospermic and normospermic crossbred breeding bulls. It is inferred that fatty acid synthesis and ketone body degradations are altered in the spermatozoa and seminal plasma of astheno-oligozoospermic crossbred bulls. These results open up new avenues for further research, and current findings can be applied for the modulation of identified pathways to restore sperm motility and concentration in astheno-oligozoospermic bulls.
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Affiliation(s)
- Mohua Dasgupta
- Theriogenology Laboratory, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Arumugam Kumaresan
- Theriogenology Laboratory, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Kaustubh Kishor Saraf
- Theriogenology Laboratory, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Pradeep Nag
- Theriogenology Laboratory, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Manish Kumar Sinha
- Theriogenology Laboratory, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Muhammad Aslam M. K.
- Base Farm, Kerala Veterinary and Animal Sciences University, Kolahalamedu, India
| | - Gayathree Karthikkeyan
- Centre for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - T. S. Keshava Prasad
- Centre for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Prashant Kumar Modi
- Centre for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Tirtha Kumar Datta
- Animal Genomics Laboratory, Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Karnal, India
| | - Kerekoppa Ramesha
- Dairy Production Section, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Ayyasamy Manimaran
- Dairy Production Section, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
| | - Sakthivel Jeyakumar
- Dairy Production Section, Southern Regional Station of Indian Council of Agricultural Research (ICAR)—National Dairy Research Institute, Bengaluru, India
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Engel KM, Prabutzki P, Leopold J, Nimptsch A, Lemmnitzer K, Vos DRN, Hopf C, Schiller J. A new update of MALDI-TOF mass spectrometry in lipid research. Prog Lipid Res 2022; 86:101145. [PMID: 34995672 DOI: 10.1016/j.plipres.2021.101145] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/06/2021] [Accepted: 12/29/2021] [Indexed: 01/06/2023]
Abstract
Matrix-assisted laser desorption and ionization (MALDI) mass spectrometry (MS) is an indispensable tool in modern lipid research since it is fast, sensitive, tolerates sample impurities and provides spectra without major analyte fragmentation. We will discuss some methodological aspects, the related ion-forming processes and the MALDI MS characteristics of the different lipid classes (with the focus on glycerophospholipids) and the progress, which was achieved during the last ten years. Particular attention will be given to quantitative aspects of MALDI MS since this is widely considered as the most serious drawback of the method. Although the detailed role of the matrix is not yet completely understood, it will be explicitly shown that the careful choice of the matrix is crucial (besides the careful evaluation of the positive and negative ion mass spectra) in order to be able to detect all lipid classes of interest. Two developments will be highlighted: spatially resolved Imaging MS is nowadays well established and the distribution of lipids in tissues merits increasing interest because lipids are readily detectable and represent ubiquitous compounds. It will also be shown that a combination of MALDI MS with thin-layer chromatography (TLC) enables a fast spatially resolved screening of an entire TLC plate which makes the method competitive with LC/MS.
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Affiliation(s)
- Kathrin M Engel
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany
| | - Patricia Prabutzki
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany
| | - Jenny Leopold
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany
| | - Ariane Nimptsch
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany
| | - Katharina Lemmnitzer
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany
| | - D R Naomi Vos
- Center for Biomedical Mass Spectrometry and Optical Spectroscopy (CeMOS), Mannheim University of Applied Sciences, Paul-Wittsack-Strasse 10, D-68163 Mannheim, Germany
| | - Carsten Hopf
- Center for Biomedical Mass Spectrometry and Optical Spectroscopy (CeMOS), Mannheim University of Applied Sciences, Paul-Wittsack-Strasse 10, D-68163 Mannheim, Germany
| | - Jürgen Schiller
- Leipzig University, Faculty of Medicine, Institute for Medical Physics and Biophysics, Härtelstraße 16-18, D-04107, Germany.
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Osadchuk L, Tipisova E, Kleshchev M, Gorenko I, Osadchuk A. Study of Semen Quality, Reproductive Hormone Levels, and Lipid Levels in Men From Arkhangelsk, a City in North of European Russia. Am J Mens Health 2021; 14:1557988320939714. [PMID: 32812503 PMCID: PMC7444128 DOI: 10.1177/1557988320939714] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Male populations in the European North of Russia have not previously been investigated for semen quality. The aim of this study was to evaluate semen parameters, reproductive hormone levels, and lipid levels in volunteers from the general urban population of the European North of Russia, to compare the data published for men from the neighboring Northern or Eastern European countries, and to evaluate associations between sperm quality and serum hormonal and lipid levels. Ninety-nine volunteers aged 23-63 years residing in the city of Archangelsk were enrolled in the study. All men had blood samples drawn and completed a questionnaire concerning their health status and lifestyle; 90 men delivered semen samples. The medians for semen volume, sperm concentration, progressive motility, and normal morphology were 3.0 ml, 42.12 million/ml, 43.8%, and 6.5%, respectively. Sperm parameters below normal threshold values were found in 38.9% of participants. It seems that the sperm quality in our study group was slightly worse than in men from Finland, Norway, Sweden, or Estonia, but very similar to that in men from Denmark or Poland. The significant negative correlations of luteinizing hormone levels and positive correlations of inhibin B levels with sperm concentration and progressive motility were revealed. Higher levels of luteinizing hormone and lower levels of inhibin B were found in participants with impaired compared to normal sperm quality. No reliable links were found between serum total cholesterol, triglyceride, high and low-density lipoprotein cholesterol, and semen parameters.
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Affiliation(s)
- Ludmila Osadchuk
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
| | - Elena Tipisova
- Laboratory of Endocrinology, N. Laverov Federal Center for Integrated Arctic Research, Arkhangelsk, Russia Federation
| | - Maxim Kleshchev
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
| | - Irina Gorenko
- Laboratory of Endocrinology, N. Laverov Federal Center for Integrated Arctic Research, Arkhangelsk, Russia Federation
| | - Alexander Osadchuk
- Department of Human Molecular Genetics, Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Federation
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8
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Chen S, Wang M, Li L, Wang J, Ma X, Zhang H, Cai Y, Kang B, Huang J, Li B. High-coverage targeted lipidomics revealed dramatic lipid compositional changes in asthenozoospermic spermatozoa and inverse correlation of ganglioside GM3 with sperm motility. Reprod Biol Endocrinol 2021; 19:105. [PMID: 34233713 PMCID: PMC8262046 DOI: 10.1186/s12958-021-00792-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 06/24/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND It has been previously demonstrated that cholesterol content and cholesterol/phospholipid ratio were significantly higher in asthenozoospermia and oligoasthenoteratozoospermia. The majority of published studies have investigated the fatty acid composition of phospholipids rather than lipids themselves. This study evaluated the lipid composition of asthenozoospermic and normozoospermic spermatozoa, and identified the exact lipid species that correlated with sperm motility. METHODS A total of 12 infertile asthenozoospermia patients and 12 normozoospermia subjects with normal sperm motility values were tested for semen volume, sperm concentration, count, motility, vitality and morphology. High-coverage targeted lipidomics with 25 individual lipid classes was performed to analyze the sperm lipid components and establish the exact lipid species that correlated with sperm motility. RESULTS A total of 25 individual lipid classes and 479 lipid molecular species were identified and quantified. Asthenozoospermic spermatozoa showed an increase in the level of four lipid classes, including Cho, PE, LPI and GM3. A total of 48 lipid molecular species were significantly altered between normozoospermic and asthenozoospermic spermatozoa. Furthermore, the levels of total GM3 and six GM3 molecular species, which were altered in normozoospermic spermatozoa versus asthenozoospermic spermatozoa, were inversely correlated with sperm progressive and total motility. CONCLUSIONS Several unique lipid classes and lipid molecular species were significantly altered between asthenozoospermic and normozoospermic spermatozoa, revealing new possibilities for further mechanistic pursuits and highlighting the development needs of culture medium formulations to improve sperm motility.
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Affiliation(s)
- Shuqiang Chen
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Ming Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Li Li
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Jun Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Xuhui Ma
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Hengde Zhang
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Yang Cai
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Bin Kang
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China
| | - Jianlei Huang
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China.
| | - Bo Li
- Department of Obstetrics and Gynecology, Tangdu Hospital, the Fourth Military Medical University, 710038, Xi'an, China.
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Sanchez LD, Pontini L, Marinozzi M, Sanchez-Aranguren LC, Reis A, Dias IHK. Cholesterol and oxysterol sulfates: Pathophysiological roles and analytical challenges. Br J Pharmacol 2020; 178:3327-3341. [PMID: 32762060 DOI: 10.1111/bph.15227] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/01/2020] [Accepted: 07/20/2020] [Indexed: 01/18/2023] Open
Abstract
Cholesterol and oxysterol sulfates are important regulators of lipid metabolism, inflammation, cell apoptosis, and cell survival. Among the sulfate-based lipids, cholesterol sulfate (CS) is the most studied lipid both quantitatively and functionally. Despite the importance, very few studies have analysed and linked the actions of oxysterol sulfates to their physiological and pathophysiological roles. Overexpression of sulfotransferases confirmed the formation of a range of oxysterol sulfates and their antagonistic effects on liver X receptors (LXRs) prompting further investigations how are the changes to oxysterol/oxysterol sulfate homeostasis can contribute to LXR activity in the physiological milieu. Here, we aim to bring together for novel roles of oxysterol sulfates, the available techniques and the challenges associated with their analysis. Understanding the oxysterol/oxysterol sulfate levels and their pathophysiological mechanisms could lead to new therapeutic targets for metabolic diseases. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
| | - Lorenzo Pontini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Maura Marinozzi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | | | - Ana Reis
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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Engel KM, Jakop U, Müller K, Grunewald S, Paasch U, Schiller J. MALDI MS Analysis to Investigate the Lipid Composition of Sperm. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666181030123256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The sperm plasma membrane meets the requirements of sperm transit
through the female genital tract and subsequent fertilization. Commonly, the (phospho)lipid composition
of sperm is characterized by tremendous amounts of highly unsaturated fatty acyl residues such
as docosahexaenoic and docosapentaenoic acid. While human sperm contain almost exclusively diacyl
lipids, many animal sperm additionally contain significant amounts of ether lipids such as alkylacyl-
and alkenyl-acyl lipids (plasmalogens).
Hypothesis/Objective:
It is suggested that deviations from the typical lipid composition are indicative
of pathological changes. Therefore, simple methods to elucidate the sperm lipid composition are essential.
Method:
Matrix-assisted laser desorption and ionization (MALDI) mass spectrometry (MS) is a fast
and simple method. Since the selection of the most suitable matrix is a crucial step in MALDI MS,
this topic will be highlighted. It will also be shown that MALDI MS can be easily combined with
thin-layer chromatography to overcome ion suppression effects.
Results:
The lipid composition of sperm from different species can be elucidated by MALDI MS.
However, different matrix compounds have to be used to record positive and negative ion mass spectra.
Since some sperm (glyco)lipids are characterized by the presence of sulfate residues which suppress
the detection of less acidic lipids in the negative ion mode, previous separation is often necessary.
It will be also emphasized that plasmalogens can be easily identified by either enzymatic digestion
or treatment with acids.
Conclusion:
MALDI MS is a reliable method to obtain sperm lipid fingerprints in a simple and convenient
way.
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Affiliation(s)
- Kathrin M. Engel
- Faculty of Medicine, Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstr. 16-18, D-04107 Leipzig, Germany
| | - Ulrike Jakop
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, D-10315 Berlin, Germany
| | - Karin Müller
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, D-10315 Berlin, Germany
| | - Sonja Grunewald
- Dermatology, Venerology and Allergology Clinic, Andrological Unit, University Hospital Leipzig, Philipp-Rosenthal- Straße 23, D-04103, Leipzig, Germany
| | - Uwe Paasch
- Dermatology, Venerology and Allergology Clinic, Andrological Unit, University Hospital Leipzig, Philipp-Rosenthal- Straße 23, D-04103, Leipzig, Germany
| | - Jürgen Schiller
- Faculty of Medicine, Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstr. 16-18, D-04107 Leipzig, Germany
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