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Santiago J, Silva JV, Santos MAS, Fardilha M. Age-Dependent Alterations in Semen Parameters and Human Sperm MicroRNA Profile. Biomedicines 2023; 11:2923. [PMID: 38001924 PMCID: PMC10669352 DOI: 10.3390/biomedicines11112923] [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: 10/16/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
The trend to delay parenthood is increasing, impacting fertility and reproductive outcomes. Advanced paternal age (APA), defined as men's age above 40 years at conception, has been linked with testicular impairment, abnormal semen parameters, and poor reproductive and birth outcomes. Recently, the significance of sperm microRNA for fertilization and embryonic development has emerged. This work aimed to investigate the effects of men's age on semen parameters and sperm microRNA profiles. The ejaculates of 333 Portuguese men were collected between 2018 and 2022, analyzed according to WHO guidelines, and a density gradient sperm selection was performed. For microRNA expression analysis, 16 normozoospermic human sperm samples were selected and divided into four age groups: ≤30, 31-35, 36-40, and >40 years. microRNA target genes were retrieved from the miRDB and TargetScan databases and Gene Ontology analysis was performed using the DAVID tool. No significant correlation was found between male age and conventional semen parameters, except for volume. Fifteen differentially expressed microRNAs (DEMs) between groups were identified. Enrichment analysis suggested the involvement of DEMs in the sperm of men with advanced age in critical biological processes like embryonic development, morphogenesis, and male gonad development. Targets of DEMs were involved in signaling pathways previously associated with the ageing process, including cellular senescence, autophagy, insulin, and mTOR pathways. These results suggest that although conventional semen parameters were not affected by men's age, alterations in microRNA regulation may occur and be responsible for poor fertility and reproductive outcomes associated with APA.
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Affiliation(s)
- Joana Santiago
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, 3810-193 Aveiro, Portugal; (J.V.S.); (M.A.S.S.)
| | - Joana V. Silva
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, 3810-193 Aveiro, Portugal; (J.V.S.); (M.A.S.S.)
| | - Manuel A. S. Santos
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, 3810-193 Aveiro, Portugal; (J.V.S.); (M.A.S.S.)
- Multidisciplinary Institute of Ageing, MIA-Portugal, University of Coimbra, 3000-370 Coimbra, Portugal
| | - Margarida Fardilha
- Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, 3810-193 Aveiro, Portugal; (J.V.S.); (M.A.S.S.)
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2
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Mazzilli R, Rucci C, Vaiarelli A, Cimadomo D, Ubaldi FM, Foresta C, Ferlin A. Male factor infertility and assisted reproductive technologies: indications, minimum access criteria and outcomes. J Endocrinol Invest 2023; 46:1079-1085. [PMID: 36633791 DOI: 10.1007/s40618-022-02000-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/23/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Infertility, which is defined as the inability to conceive after at least 12 months of regular unprotected sexual intercourses, affects about 15-20% of couples worldwide and a male factor is involved in about half of the cases. The development of assisted reproductive technology (ART) made it possible to conceive also to individuals affected from severe oligospermia or azoospermia. However, the impact of the male factor on embryo development, implantation, prevalence of chromosomal abnormalities, genetic and epigenetic alterations, and clinical and obstetric outcomes is still controversial. PURPOSE This narrative review examines the indications, minimum access criteria, and outcomes by individual ART technique in relation to the male factor.
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Affiliation(s)
- R Mazzilli
- Andrology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via Di Grottarossa, 1036-1039, 00100, Rome, Italy.
- GeneraLife IVF, Clinica Valle Giulia, Rome, Italy.
| | - C Rucci
- GeneraLife IVF, Clinica Valle Giulia, Rome, Italy
- Department of Surgical Sciences, Gynecologic Unit, University of Rome "TorVergata", Rome, Italy
| | - A Vaiarelli
- GeneraLife IVF, Clinica Valle Giulia, Rome, Italy
| | - D Cimadomo
- GeneraLife IVF, Clinica Valle Giulia, Rome, Italy
| | - F M Ubaldi
- GeneraLife IVF, Clinica Valle Giulia, Rome, Italy
| | - C Foresta
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - A Ferlin
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
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3
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Abstract
Compared to women, increasing male age is not accompanied by such marked changes in reproductive function but changes certainly do happen. These include alterations to the hypothalamo-pituitary-testicular axis, with resultant implications for testosterone production and bioavailability as well as spermatogenesis. There is a decline in sexual function as men age, with a dramatic increase in the prevalence of erectile dysfunction after the age of 40, which is a marker for both clinically evident as well as covert coronary artery disease. Despite a quantitative decline in spermatogenesis and reduced fecundability, the male potential for fertility persists throughout adult life, however there are also increasingly recognised alterations in sperm quality and function with significant implications for offspring health. These changes are relevant to both natural and medically assisted conception.
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Affiliation(s)
- Sarah Martins da Silva
- Reproductive Medicine Research Group, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, DD1 9SY, Dundee, UK
| | - Richard A Anderson
- MRC Centre for Reproductive Health, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, EH16 4TJ, Edinburgh, UK.
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4
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Kidera N, Ishikawa T, Kawamura T, Miyasaka N. Impact of paternal age on IVF and pregnancy outcomes with only normal sperm parameters. Taiwan J Obstet Gynecol 2022; 61:1015-1020. [DOI: 10.1016/j.tjog.2022.02.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2022] [Indexed: 11/23/2022] Open
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5
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Does advanced paternal age affect outcomes following artificial reproductive technologies? A systematic review and meta-analysis. Reprod Biomed Online 2022; 45:283-331. [DOI: 10.1016/j.rbmo.2022.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 03/18/2022] [Accepted: 03/31/2022] [Indexed: 11/20/2022]
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6
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Elbardisi H, Arafa M, Singh N, Betts B, Agrawal A, Henkel R, Al-Hadi AA, Burjaq H, Alattar A, Khalafalla K, Majzoub A. The effect of paternal age on intracytoplasmic sperm injection outcome in unexplained infertility. Arab J Urol 2021; 19:274-280. [PMID: 34552779 PMCID: PMC8451663 DOI: 10.1080/2090598x.2021.1955553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Objective : To examine the effect of paternal age on intracytoplasmic sperm injection (ICSI) outcomes in unexplained infertility. Subjects and Methods : This retrospective study, done at the Hamad Medical Corporation, Doha, Qatar screened infertile couples who underwent ICSI between 2014 and 2019 for the inclusion and exclusion criteria defining 'unexplained infertility'. Couples recruited were allocated into two groups: Group A (paternal age <35 years) and Group B (paternal age ≥35 years). Baseline characteristics, investigations including semen and advanced sperm function tests and ICSI records were compared for primary outcomes such as fertilisation, cleavage, clinical pregnancy, miscarriage and live birth; and secondary outcomes such as semen parameters and advanced sperm functions (DNA fragmentation index and oxidation reduction potential). Results : We found that final pregnancy outcomes including clinical pregnancy rate (P = 0.231), live-birth rate (P = 0.143), and miscarriage rates (P = 0.466) were not significantly different between the two age groups. Normal fertilisation (P = 0.01) and cleavage rate after ICSI (P = 0.001) were statistically significant when the age groups were compared. Also, normal sperm morphology was found to be significantly different (P = 0.041). Conclusions : Advanced paternal age affects sperm morphology, fertilisation and embryo cleavage in ICSI but does not appear to affect clinical pregnancy, miscarriage or live-birth rates. ICSI appears to be a valid fertility treatment option in advancing paternal age.
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Affiliation(s)
- Haitham Elbardisi
- Urology Department, Hamad Medical Corporation, Doha, Qatar.,Weill Cornell Medicine-Qatar, Education City, Qatar
| | - Mohamed Arafa
- Urology Department, Hamad Medical Corporation, Doha, Qatar.,Weill Cornell Medicine-Qatar, Education City, Qatar.,Andrology Department, Cairo University, Cairo, Egypt.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Neha Singh
- Obstetric & Genecology department King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Bridget Betts
- School of Pharmacy, University of Mississippi, Mississippi, USA
| | - Ashok Agrawal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Metabolism, Digestion and Reproduction, Imperial College London, LondonUK.,Department of Medical Bioscience, University of Western Cape, Bellville, South Africa
| | - Alia A Al-Hadi
- Department of Reproductive Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Hasan Burjaq
- Department of Reproductive Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Alia Alattar
- Urology Department, Hamad Medical Corporation, Doha, Qatar
| | | | - Ahmad Majzoub
- Urology Department, Hamad Medical Corporation, Doha, Qatar.,Weill Cornell Medicine-Qatar, Education City, Qatar
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7
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Boeri L, Ventimiglia E, Cazzaniga W, Pederzoli F, Fallara G, Pozzi E, Belladelli F, Baudo A, Frego N, Capogrosso P, Alfano M, Montorsi F, Salonia A. Risk of health status worsening in primary infertile men: a prospective 10-year follow-up study. Andrology 2021; 10:128-136. [PMID: 34369670 DOI: 10.1111/andr.13090] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/13/2021] [Accepted: 07/21/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND A severe male infertility factor has been associated with both lower health status and increased mortality in infertile men. OBJECTIVES To investigate reproductive factors associated with health status impairment in infertile men over a 10-year time frame since first clinical evaluation. MATERIALS AND METHODS Data from 899 infertile men were analysed at baseline between 2003 and 2010. Health-significant comorbidities were scored with the Charlson Comorbidity Index (CCI). Patients were followed-up yearly recording any worsening in their health status until 2019. Cox regression models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) of CCI score increase. RESULTS At a median follow-up of 136 months (IQR 121, 156), 85 men (9.5%) depicted an increase of their baseline CCI score of at least 1 point. The most frequent reason for CCI upgrade was cancer (34%), cardio-vascular diseases (29%) and diabetes mellitus (22%). Compared to patients without a CCI increase, patients with a CCI increase presented with higher BMI and FSH values, a higher rate of baseline CCI ≥ 1 (all p < 0.01) and a greater proportion of non-obstructive azoospermia (p < 0.001). In the Cox regression model, patient's BMI (p < 0.001), baseline CCI ≥ 1 (p < 0.01) and azoospermia status (p = 0.001) were found to be independently associated with CCI increases. CONCLUSIONS Almost 10% of men presenting for primary infertility had a decrease of the overall health status already in the relatively short 10-year time frame after first presentation. Non-obstructive azoospermic men showed the worst health status impairment and should be strictly followed-up regardless of their fertility status. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Luca Boeri
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Urology, Foundation IRCCS Ca' Granda - Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Walter Cazzaniga
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Giueppe Fallara
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Baudo
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Nicola Frego
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Urology, Istituto Clinico Humanitas IRCCS-Clinical and Research Hospital, Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy.,Department of Urology, Circolo & Fondazione Macchi Hospital - ASST Sette Laghi, Varese, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI; IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
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8
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Kashir J, Mistry BV, Gumssani MA, Rajab M, Abu-Dawas R, AlMohanna F, Nomikos M, Jones C, Abu-Dawud R, Al-Yacoub N, Coward K, Lai FA, Assiri AM. Advancing male age differentially alters levels and localization patterns of PLCzeta in sperm and testes from different mouse strains. Asian J Androl 2021; 23:178-187. [PMID: 33208563 PMCID: PMC7991809 DOI: 10.4103/aja.aja_67_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Sperm-specific phospholipase C zeta (PLCζ) initiates intracellular calcium (Ca2+) transients which drive a series of concurrent events collectively termed oocyte activation. Numerous investigations have linked abrogation and absence/reduction of PLCζ with forms of male infertility in humans where oocyte activation fails. However, very few studies have examined potential relationships between PLCζ and advancing male age, both of which are increasingly considered to be major effectors of male fertility. Initial efforts in humans may be hindered by inherent PLCζ variability within the human population, alongside a lack of sufficient controllable repeats. Herein, utilizing immunoblotting, immunofluorescence, and quantitative reverse transcription PCR (qRT-PCR) we examined for the first time PLCζ protein levels and localization patterns in sperm, and PLCζ mRNA levels within testes, from mice at 8 weeks, 12 weeks, 24 weeks, and 36 weeks of age, from two separate strains of mice, C57BL/6 (B6; inbred) and CD1 (outbred). Collectively, advancing male age generally diminished levels and variability of PLCζ protein and mRNA in sperm and testes, respectively, when both strains were examined. Furthermore, advancing male age altered the predominant pattern of PLCζ localization in mouse sperm, with younger mice exhibiting predominantly post-acrosomal, and older mice exhibiting both post-acrosomal and acrosomal populations of PLCζ. However, the specific pattern of such decline in levels of protein and mRNA was strain-specific. Collectively, our results demonstrate a negative relationship between advancing male age and PLCζ levels and localization patterns, indicating that aging male mice from different strains may serve as useful models to investigate PLCζ in cases of male infertility and subfertility in humans.
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Affiliation(s)
- Junaid Kashir
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Bhavesh V Mistry
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Maha Adel Gumssani
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Muhammad Rajab
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Reema Abu-Dawas
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Falah AlMohanna
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Michail Nomikos
- College of Medicine, QU Health, Qatar University, Doha PO Box 2713, Qatar
| | - Celine Jones
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom
| | - Raed Abu-Dawud
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Nadya Al-Yacoub
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Kevin Coward
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom
| | - F Anthony Lai
- College of Medicine, QU Health, Qatar University, Doha PO Box 2713, Qatar.,Biomedical Research Centre, Qatar University, Doha PO Box 2713, Qatar
| | - Abdullah M Assiri
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
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Gill K, Jakubik-Uljasz J, Rosiak-Gill A, Grabowska M, Matuszewski M, Piasecka M. Male aging as a causative factor of detrimental changes in human conventional semen parameters and sperm DNA integrity. Aging Male 2020; 23:1321-1332. [PMID: 32425138 DOI: 10.1080/13685538.2020.1765330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
The effect of male aging on fertility potential is controversial and difficult to predict. The aim of our study was to determine the associations between age, basic semen parameters, and sperm DNA fragmentation (SDF). Comparison of four age-dependent groups (men ≤29 years, 30-35 years, 36-40 years, and >40 years) revealed a significant fall in the basic semen characteristics and sperm genomic integrity with age. Receiver operating characteristic (ROC) analysis confirmed that men >29 years had lower semen quality. In the group of men >29 years, the prevalence of men with abnormal semen parameters was higher, and these men had over a threefold higher odds ratio (OR) for abnormal semen parameters. Next, ROC analysis revealed that a threshold of 18% SDF was optimal for discriminating between men with normal and abnormal standard semen parameters. The prevalence of men with >18% SDF was higher in the group of men >29 years than in men ≤29 years. Older men had an almost twofold higher risk for >18% SDF than younger men. Our results suggest that age >29 years may be a causative factor of detrimental changes in semen quality, which may raise the risk for disorders of male fertility potential.
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Affiliation(s)
- Kamil Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Joanna Jakubik-Uljasz
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Aleksandra Rosiak-Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
- VitroLive Fertility Clinic in Szczecin, Szczecin, Poland
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
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10
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Kashir J, Mistry BV, BuSaleh L, Abu-Dawas R, Nomikos M, Ajlan A, Abu-Dawud R, AlYacoub N, AlHassan S, Lai FA, Assiri AM, Coskun S. Phospholipase C zeta profiles are indicative of optimal sperm parameters and fertilisation success in patients undergoing fertility treatment. Andrology 2020; 8:1143-1159. [PMID: 32298520 DOI: 10.1111/andr.12796] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/07/2020] [Accepted: 04/07/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Oocyte activation is driven by intracellular calcium (Ca2+ ) oscillations induced by sperm-specific PLCζ, abrogation of which causes oocyte activation deficiency in humans. Clinical PLCζ investigations have been limited to severe male infertility conditions, while PLCζ levels and localisation patterns have yet to be associated with general sperm viability. MATERIALS AND METHODS PLCζ profiles were examined within a general population of males attending a fertility clinic (65 patients; aged 29-53), examining PLCζ throughout various fractions of sperm viability. Male recruitment criteria required a minimum sperm count of 5 × 106 spermatozoa/mL, while all female patients included in this study yielded at least five oocytes for treatment. Sperm count, motility and semen volume were recorded according to standard WHO reference guidelines and correlated with PLCζ profiles examined via immunoblotting and immunofluorescence. Appropriate fertility treatments were performed following routine clinical standard operating protocols, and fertilisation success determined by successful observation of second polar body extrusion. RESULTS AND DISCUSSION Four distinct PLCζ patterns were observed at the equatorial, acrosomal + equatorial regions of the sperm head, alongside a dispersed pattern, and a population of spermatozoa without any PLCζ. Acrosomal + equatorial PLCζ correlated most to sperm health, while dispersed PLCζ correlated to decreased sperm viability. Total levels of PLCζ exhibited significant correlations with sperm parameters. PLCζ variance corresponded to reduced sperm health, potentially underlying cases of male sub-fertility and increasing male age. Finally, significantly higher levels of PLCζ were exhibited by cases of fertilisation success, alongside higher proportions of Ac + Eq, and lower levels of dispersed PLCζ. CONCLUSIONS PLCζ potentially represents a biomarker of sperm health, and fertilisation capacity in general cases of patients seeking fertility treatment, and not just cases of repeated fertilisation. Further focused investigations are required with larger cohorts to examine the full clinical potential of PLCζ.
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Affiliation(s)
- Junaid Kashir
- College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.,School of Biosciences, Cardiff University, Cardiff, UK.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Bhavesh V Mistry
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Lujain BuSaleh
- College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Reema Abu-Dawas
- College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Michail Nomikos
- College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Ahmed Ajlan
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Raed Abu-Dawud
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Nadya AlYacoub
- Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia
| | - Saad AlHassan
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - F Anthony Lai
- College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical Research Centre, Qatar University, Doha, Qatar
| | - Abdullah M Assiri
- College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.,Department of Comparative Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia.,Biomedical Research Centre, Qatar University, Doha, Qatar.,Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Serdar Coskun
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
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11
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Kurt G, Arslan H. İnfertilite tedavisi alan çiftlerin kullandıkları tamamlayıcı ve alternatif tıp uygulamaları. CUKUROVA MEDICAL JOURNAL 2019. [DOI: 10.17826/cumj.569533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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