scholarly journals Image content influences men's semen quality

2005 ◽  
Vol 1 (3) ◽  
pp. 253-255 ◽  
Author(s):  
Sarah J Kilgallon ◽  
Leigh W Simmons
Keyword(s):  
Sperm Competition ◽  
Mobile Phones ◽  
Semen Quality ◽  
Lifestyle Factors ◽  
Motile Sperm ◽  
Image Content ◽  
Recent Suggestion

There is increasing evidence from non-human animals that males adjust their ejaculate expenditure according to the risk of sperm competition. In this study we show that, after controlling for lifestyle factors known to influence semen quality, human males viewing images depicting sperm competition had a higher percentage of motile sperm in their ejaculates. Many lifestyle variables were confirmed to influence semen quality, including the recent suggestion that storage of mobile phones close to the testes can decrease semen quality.

P–063 The influence of lifestyle factors on sperm quality by motile sperm organelle morphology examination (MSOME)

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
A Sebastianelli ◽  
F Battaglia ◽  
L Caponecchia ◽  
C Fiori ◽  
I Marcucci ◽  
...  
Keyword(s):  
Semen Quality ◽  
Positive Impact ◽  
Sperm Quality ◽  
Semen Analysis ◽  
Lifestyle Factors ◽  
World Health ◽  
Semen Parameters ◽  
Base System ◽  
Motile Sperm ◽  
Organelle Morphology

Abstract Study question This study aimed to investigate the influence of lifestyle factors on sperm quality according to Motile Sperm Organelle Morphology Examination (MSOME) criteria. Summary answer The introduction of MSOME permits the examination of subcellular defect like nuclear vacuoles at hight magnification (6000x) in real time on vital sperm. What is known already It is increased accepted that lifestyle factors have an impact on sperm quality. Recent evidence shows that the selection of spermatozoa based on the analysis of morphology under high magnification may have a positive impact on embryo development in cases with severe male factor infertility and/or previous implantation failures. Therefore, MSOME has been considered as representing an improvement in the evaluation of semen quality. Although numerous studies have shown the influences of nutrition, lifestyle, age on semen quality, only very few study, have considered the influence of these factors on the vacuolization rate in semen analysis (MSOME criteria) Study design, size, duration The objective of this prospective study was to compare the semen parameters of 87 male patients undergoing evaluation or treatment of infertility at Unit of Pathophysiology of Reproduction ad PMA-Santa Maria Goretti Hospital -Latina according to MSOME and WHO (World Health Organization) criteria between January and September 2019.Written informed consent was obtained from all partecipant of this study. Participants/materials, setting, methods The subjects were divided into three groups according to age: Group 1 ≤ 35 yearş group II ,36–40 years; and Group III ≥ to 41 years .All patients filled a questionnaire answering questions regarding age, BMI, caffeine and alcohol consumptions, smoking and nutrition behavior. Were excluded from the study patients with chromosomal alteration. For multifactorial lifestyle influence patients were evaluated with a point base system with a cut-off >2 and cut off<3 for unhealthy style. Main results and the role of chance There was no difference between the groups with regard all semen parameters such as volume, concentration, number of leukocytes, morphology and vitality (%).The percentage of spermatozoa with LNV (Large Nuclear vacuoles) was significantly higher in the older group than in the younger (I and II) (39,14±13,74 vs 31,8±12 and 31,7 ±13,4 rispectively (p < 0,05)which does not correspond to a worsening of semen morphology. Regression analysis demonstrated a correlation between the percentage of spermatozoa with LNV and male age (r = –0,1) (p < 0,001). There was no correlation between lifestyle parameters ad enviroments factors . Comparing the semen parameters of healthy and unhealthy population we found no difference except a significantly higher number of spermatozoa with vacuoles in the unhealthy population (p < 0.001) Limitations, reasons for caution Although the sample examined in this study is limited in size and other studies are needed to confirm this evidence, the data available to us support the routine use of MSOME for ICSI and as a criterion for semen analysis with potential clinical repercussions. Wider implications of the findings: To date, there are few works in the literature that analyze the relationship between the morphology assessed with the MSOME and the age of the patients and the results are conflicting. To our knowledge many works agree with our results. Trial registration number Not applicable

Fertilization dynamics of sperm from different male mating tactics in bluegill (Lepomis macrochirus)

2005 ◽  
Vol 83 (12) ◽  
pp. 1638-1642 ◽  
Author(s):  
Albrecht I Schulte-Hostedde ◽  
Gary Burness
Keyword(s):  
Sperm Competition ◽  
Lepomis Macrochirus ◽  
Fertilization Success ◽  
Male Mating ◽  
Motile Sperm ◽  
Mating Tactics ◽  
Sperm Activation ◽  
Competition Theory ◽  
Sperm Density ◽  
Over Time

Sperm competition results in the evolution of ejaculate characteristics such as high sperm density, high motility, and fast sperm swimming speed. A fundamental assumption of sperm competition theory is that ejaculates with high motility and fast-swimming sperm have an advantage with respect to fertilization success. We tested this assumption by studying the fertilization dynamics of alternative mating tactics (cuckolders and parentals) of male bluegill (Lepomis macrochirus Rafinesque, 1819). Sneakers (cuckolders) have faster swimming sperm and a higher proportion of motile sperm immediately following sperm activation than do parentals; however, these variables decline more quickly over time in sneaker sperm than in the sperm of parental males. We used a controlled fertilization experiment to test the prediction that parental males will have higher fertilization success than sneakers late in the sperm activation cycle because of the reduced rate of decline in ejaculate quality over time. We found that as the time from sperm activation increases parental sperm fertilizes more eggs than the sperm of sneakers. Our results support the idea that fertilization success is higher when ejaculates contain a higher proportion of either motile sperm or faster swimming sperm, all else being equal. In addition, after controlling for time from sperm activation, we found a significant bias in fertilization success toward parental males, suggesting that cryptic female choice might play a role in fertilization dynamics.

Association of lifestyle factors with semen quality: A pilot study conducted in men from the Portuguese Trás‐os‐Montes and Alto Douro region followed in fertility support consultations

Andrologia ◽  
2020 ◽  
Vol 52 (4) ◽  
Author(s):  
Patrícia Pinto‐Pinho ◽  
Joana Matos ◽  
Regina Arantes‐Rodrigues ◽  
Zélia Gomes ◽  
Miguel Brito ◽  
...  
Keyword(s):  
Pilot Study ◽  
Semen Quality ◽  
Lifestyle Factors

The choice of the most appropriate microfertilization technique for human male factor infertility

1994 ◽  
Vol 6 (1) ◽  
pp. 37 ◽  
Author(s):  
AO Trounson
Keyword(s):  
Semen Quality ◽  
Fertilization Rate ◽  
World Health ◽  
Gamete Intrafallopian Transfer ◽  
Male Factor Infertility ◽  
Motile Sperm ◽  
Male Factor ◽  
Cleavage Rate ◽  
Pronuclear Formation

Comparisons were made among techniques used to treat male factor infertility. Patients with semen quality below that recognized by World Health Organization criteria as normal had a better success rate when treated by gamete intrafallopian transfer than by in vitro fertilization (25% v. 7% pregnancy rate per patient). When < 2 x 10(6) motile sperm were recovered, the fertilization rate and embryo cleavage rate were higher for microdrop insemination than for conventional insemination. When 7000-370,000 motile sperm were recovered, microdrop insemination resulted in a higher fertilization rate (46%) and a higher incidence of pregnancies (23% of patients treated) than subzonal sperm microinjection (SUSM). However, for patients with 5000-50,000 motile sperm, the immediate transfer of SUSM oocytes to the Fallopian tube increased pregnancy rates for this technique to 24% of patients treated. Direct microinjection of epididymal sperm from azoospermic men into the cytoplasm of oocytes resulted in pronuclear formation in 27% of oocytes; in comparison, pronuclear formation occurred in 5% of SUSM oocytes. These data led to formulation of a logical treatment programme for male factor infertility.

scholarly journals Concepts in sperm heterogeneity, sperm selection and sperm competition as biological foundations for laboratory tests of semen quality

Reproduction ◽  
2004 ◽  
Vol 127 (5) ◽  
pp. 527-535 ◽  
Author(s):  
William V Holt ◽  
Katrien J W Van Look
Keyword(s):  
Sperm Competition ◽  
Laboratory Tests ◽  
Semen Quality ◽  
Sea Urchins ◽  
Selection Process ◽  
Sperm Quality ◽  
Genetic Material ◽  
Mendelian Inheritance ◽  
Competition Theory ◽  
Selection Processes

Stringent selection mechanisms, in both internal and external fertilisation systems, reject all but a significant minority of the spermatozoa released at ejaculation. Sperm competition theory provides circumstantial evidence that the selection process involves mechanisms by which the quality of the fertilising spermatozoon is controlled, thereby ensuring that females and their offspring receive high quality genetic material. In this review we examine some of these selection processes to see whether they could be exploited for the improvement of laboratory tests of sperm quality. Such tests are not only required for clinical and agricultural purposes, but are increasingly needed in fields such as reproductive and environmental toxicology where the species requirement is much broader. Despite many years of research, sperm quality assessment methods continue to provide imprecise data about fertility; here we suggest that this may be a consequence of using tests that focus on the spermatozoa that would normally be unable to fertilise under natural conditions. To achieve fertilisation a spermatozoon must be capable of responding appropriately to external signalling stimuli; those involving protein kinase-regulated flagellar function seem especially influential in governing effects ranging from non-Mendelian inheritance in mammals to sperm chemotaxis in sea urchins. Examination of the elicited responses reveals considerable heterogeneity in all species. Here we propose that this level of heterogeneity is meaningful both in terms of understanding how spermatozoa from some individuals possess fertility advantages over spermatozoa from their rivals in sperm competition, and in that the heterogeneity should be exploitable in the development of more accurate laboratory tests.

scholarly journals Comparative study on the semen quality characteristics of parthenotes and parent toms reared in Nsukka

2020 ◽  
Vol 46 (5) ◽  
Author(s):  
F. U. Udeh ◽  
I. J. Ohagenyi ◽  
N. E. Ikeh ◽  
M. O. Onodugo ◽  
V. C. Udeh ◽  
...  
Keyword(s):  
Sperm Cell ◽  
Semen Quality ◽  
Sperm Concentration ◽  
Quality Characteristics ◽  
Semen Parameters ◽  
Motile Sperm ◽  
Semen Collection ◽  
Normal Sperm ◽  
Abnormal Sperm ◽  
Significant Difference

The study was conducted to evaluate the semen quality characteristics of turkey parthenotes and parent toms. A total of twenty-four turkeys were used for the study. These comprised of twelve parthenotes toms and twelve parent toms. Parthenotes are male turkeys produced through parthenogenesis. The toms were subjected to abdominal massage techniques for semen collection. Semen collection was done twice per week and analyzed for volume, motility, sperm concentration, like sperm, abnormal sperm, normal sperm, dead sperm, total sperm/ejaculates and total motile sperm cells. The results showed that there were significant differences (p<0.05) in semen volume, sperm concentration, normal sperm cell, abnormal sperm and total motile sperm with mean values being 0.35mL, 1.74x109/mL, 97.80%, 2.20%, 1.68x1012 and 0.41ml, 1.50x109/mL, 94.00%, 6.00% and 1.42x1012, respectively for both parthenotes and parent toms. However, semen parameters such as motility, live sperm cell, dead sperm cell and total sperm/ejaculate showed no significant difference (p>0.05) with values of 96.7%, 97.7%, 2.30% and 6.07x109 for parthenotes toms and 93.20%, 98.50%, 1.50% and 6.23x109 for parent toms. It was observed from the results that turkey parthenotes possess good quality semen characteristic and therefore, recommended for use in poultry industry for turkey production.

scholarly journals MP26-14 EXTERNAL VALIDATION OF THE POST-VARICOCELECTOMY SEMEN QUALITY NOMOGRAM TO PREDICT TOTAL MOTILE SPERM COUNT

2020 ◽  
Vol 203 ◽  
pp. e405-e406
Author(s):  
Hyung Ho Lee ◽  
Won Sik Jang ◽  
Ji Eun Heo ◽  
Jong Soo Lee ◽  
Ki Hong Kim ◽  
...  
Keyword(s):  
Semen Quality ◽  
Sperm Count ◽  
External Validation ◽  
Motile Sperm ◽  
Total Motile Sperm Count

18 SEMENRATE: THE USE OF COMPUTER-ASSISTED SEMEN ANALYSIS AND FLOW CYTOMETRY FOR OBJECTIVE BOVINE SEMEN ANALYSIS IN THE UNITED KINGDOM

2017 ◽  
Vol 29 (1) ◽  
pp. 116
Author(s):  
M. W. Spilman ◽  
K. L. Burton ◽  
J. M. E. Statham
Keyword(s):  
Flow Cytometry ◽  
United Kingdom ◽  
Semen Quality ◽  
Semen Analysis ◽  
Computer Assisted ◽  
Motile Sperm ◽  
Bovine Semen ◽  
The United Kingdom ◽  
Frozen Semen ◽  
Viable Sperm

Routine assessment of bovine semen consists of a subjective assessment of morphology, motility and concentration. This subjective approach used during quality control at semen production centres (SPC) or investigations of poor reproductive performance in veterinary practice has been shown to be relatively inaccurate, imprecise, and operator dependent (Vincent, et al. 2012 Anim. Reprod. 9, 153–165). Assessment of frozen semen samples in a dedicated laboratory aimed to establish variations in multiple parameters associated with fertility using computer-assisted semen analysis and flow cytometry and evaluate their relationship to semen performance in the field. This has developed into a commercial service that is available to veterinarians and farmers across the United Kingdom. AI semen from 50 farms across Yorkshire, UK, that had been stored on farm was assessed for factors associated with fertility (motility, progressive motility, intact acrosome, viability, and polarised mitochondria). Data ranges and mean values for each parameter have been analysed. This analysis is ongoing as the dataset continues to expand and significance will be assessed. For frozen semen (n = 79), % viable sperm (max = 67.64, min = 0.00, mean = 43.44), % sperm with polarised mitochondria (max = 72.50, min = 0.26, mean = 38.56), % sperm with acrosome intact (max = 68.82, min = 0.06, mean = 35.29), % motile sperm (max = 66.90, min = 0.00, mean = 37.44) and % progressively motile sperm (max = 59.00, min = 0.00, mean = 26.11). 25% of the samples fell below the cut off for release of 30% motile sperm set by SPCs. For sexed AI semen (n = 9), % viable sperm (max = 66.31, min = 17.08, mean = 43.57), % polarised mitochondria (max = 26.74, min = 13.40, mean = 19.96), % intact acrosome (max = 52.62, min = 15.34, mean = 37.00), % motile (max = 38.00, min = 9.40, mean = 24.88) and % progressively motile (max = 22.80, min = 3.90, mean = 13.15). Objective semen analysis before beginning an embryo collection programme allows informed decisions to be made regarding semen choice and dosage depending on compensable v. non-compensable defects detected (Hudson et al. 2012 Dairy Herd Health 73–111; CABI Publishing). Use of semen that falls below the 30% cut off for SPCs is unlikely to perform as expected in the field (Phillips et al. 2004 Anim. Reprod. Sci. 80, 47–61). A European collaboration aims to establish correlations between semen quality parameters and fertility outcomes for UK cattle herds, providing unique data for the industry (Sellem et al. 2015 Theriogenology 84, 1447–1454.e5). These data should highlight to stakeholders in the industry how imperative optimal semen quality is and highlight the benefits to herd fertility and financial performance.

Effect of Lifestyle Factors on Semen Quality

2016 ◽  
Vol 2 (5) ◽  
Author(s):  
Khushbu Vaghela ◽  
Heena Oza ◽  
Vinit Mishra ◽  
Anil Gautam ◽  
Sunil Kumar
Keyword(s):  
Semen Quality ◽  
Lifestyle Factors

scholarly journals Mitochondria Content and Activity Are Crucial Parameters for Bull Sperm Quality Evaluation

Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1204
Author(s):  
Zofia E. Madeja ◽  
Marta Podralska ◽  
Agnieszka Nadel ◽  
Marcin Pszczola ◽  
Piotr Pawlak ◽  
...  
Keyword(s):  
Quality Evaluation ◽  
Semen Quality ◽  
Sperm Quality ◽  
Transcript Level ◽  
Glutathione Synthetase ◽  
Motile Sperm ◽  
Bovine Sperm ◽  
Cryopreserved Sperm ◽  
Group 2 ◽  
Group 1

Standard sperm evaluation parameters do not enable predicting their ability to survive cryopreservation. Mitochondria are highly prone to suffer injuries during freezing, and any abnormalities in their morphology or function are reflected by a decline of sperm quality. Our work focused on describing a link between the number and the activity of mitochondria, with an aim to validate its applicability as a biomarker of bovine sperm quality. Cryopreserved sperm collected from bulls with high (group 1) and low (group 2) semen quality was separated by swim up. The spermatozoa of group 1 overall retained more mitochondria (MitoTrackerGreen) and mtDNA copies, irrespective of the fraction. Regardless of the initial ejaculate quality, the motile sperm contained significantly more mitochondria and mtDNA copies. The same trend was observed for mitochondrial membrane potential (ΔΨm, JC-1), where motile sperm displayed high ΔΨm. These results stay in agreement with transcript-level evaluation (real-time polymerase chain reaction, PCR) of antioxidant enzymes (PRDX1, SOD1, GSS), which protect cells from the reactive oxygen species. An overall higher level of glutathione synthetase (GSS) mRNA was noted in group 1 bulls, suggesting higher ability to counteract free radicals. No differences were noted between basal oxygen consumption rate (OCR) (Seahorse XF Agilent) and ATP-linked respiration for group 1 and 2 bulls. In conclusion, mitochondrial content and activity may be used as reliable markers for bovine sperm quality evaluation.

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