scholarly journals Differences of Spermatozoa Concentration Analysis Between Manual and Automatic Methods

2021 ◽  
Vol 3 (2) ◽  
pp. 122-134
Author(s):  
Emma Ismawatie ◽  
Purwanto Adhipireno ◽  
Seso Sulijaya Suyono ◽  
Edy Purwanto ◽  
Budi Santoso ◽  
...  
Keyword(s):  
Sperm Count ◽  
Statistical Tests ◽  
Semen Analysis ◽  
Sperm Concentration ◽  
Clinical Pathology ◽  
Automatic Method ◽  
Pathology Laboratory ◽  
Manual Method ◽  
Significant Difference ◽  
Automatic Methods

The examination of sperm concentration in the laboratory is the calculation of the number and motility using a microscope or using a device. There are still some clinicians who doubt the accuracy of the sperm count results using a semen analyzer rather than using the manual method. This study aims is to determine the differences of the sperm concentration examination between the manual method and the automatic method. Subjects in this study were patients who carried out semen analysis tests at the Clinical Pathology Laboratory of RSIA "Restu Ibu" Sragen from June to August 2020. The object of this research is the examination of sperm concentration, using a manual method using a hemocytometer and an automatic method using the LensHooke ™ SQA X1 Pro. The results of statistical tests using the Mann Whitney methods show that the significance value (p) was 0.960, which means that there was no difference in the results of  the sperm concentration examination between the manual method and the automatic method. Result of this research shows that there is no weakness or significant difference if compared between manual and automatic methods.

scholarly journals Comparison of semen analysis by manual and automated method

2016 ◽  
Vol 6 (12) ◽  
pp. 990-993
Author(s):  
AK Chaurasia ◽  
AK Sinha ◽  
P Upahdyay
Keyword(s):  
Comparative Study ◽  
Male Fertility ◽  
Sperm Morphology ◽  
Sperm Count ◽  
Semen Analysis ◽  
Sperm Concentration ◽  
Health Sciences ◽  
Manual Method ◽  
Automated Method ◽  
The Mean

Background: Semen analysis is used to evaluate male fertility. The aim of this study was to compare the results of semen analysis using manual method and automated sperm analyzer.Materials and Methods: This was a comparative study of 50 cases of semen analysis done in the Department of Pathology at the B.P. Koirala Institute of Health Sciences from March 2009 to March 2010. The automated sperm analyzer did not show the WHO parameters of patients who had functional sperm count (FSC) less than five hundred thousand (500,000). Semen analysis of each of the case included in the study was done by manual and automated method (using SQAII-P analyzer).Results: Out of 31 patients, the mean age of the patients was 28.56 years with youngest patient of 20 years and eldest of 45 year. Sensitivity and specificity was 100% in analysis of sperm concentration by both the methods. Sperm motility analysis showed 100% sensitivity and 81.81% specificity. Sperm morphology analysis showed 100% sensitivity and 34.48% specificity.Conclusion: It was observed that the automated method is much quicker and precise than the conventional, manual method for semen analysis.

scholarly journals The Effect of Single and Triple Testicular Biopsy Using Biopty Gun on Spermatogenesis in Pubertal Rats

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1569
Author(s):  
Tomislav Šušnjar ◽  
Ivana Kuzmić Prusac ◽  
Ivan Švagelj ◽  
Anđela Jurišić ◽  
Tomislav Šušnjar ◽  
...  
Keyword(s):  
Sperm Count ◽  
Semen Analysis ◽  
Study Groups ◽  
Testicular Biopsy ◽  
Male Rats ◽  
Lower Percentage ◽  
Control Group ◽  
Sprague Dawley ◽  
Left Testis ◽  
Significant Difference

Background: The aim of this study was to compare consequences in single and triple testicular biopsy by biopty gun in pubertal rats using histological and immunohistochemical analysis. Methods: Thirty-two Sprague-Dawley male rats were used as the experimental model. The rats were randomly divided into three study groups. The rats from the first group (n = 12) received a single-biopsy of upper pole of the left testis, while the rats from the second group (n = 10) received triple-biopsy of upper and lower poles and lateral surface of left testis. The third group (n = 10) was a control group. On the eightieth day after the biopsy in all rats bilateral orchiectomy and funiculectomy were performed to obtain testicular tissue and sperm for analysis. The consequences of the puncture were observed by pathohistology, immunohistochemistry and semen analysis. Results: The results of the study showed lower percentage of sperm count (14.5 mill/mL vs. 16 mill/mL, p = 0.130), sperm motility (24.6% vs. 32.7%, p > 0.05), abnormal sperm (30% vs. 27%, p > 0.05), atrophic tubules (21% vs. 6%, p < 0.001), volume (1.7 mL vs. 2.28 mL, p < 0.01) and apoptotic index (1.56 vs. 1.19, p = 0.650) in the testes with a triple-biopsy compared to the testes with a single-biopsy. Semen analysis showed a borderline significant difference between the group with triple-biopsy where sperm count was lower than it in the control group (14.5 mill/mL vs. 17.5 mill/mL, p = 0.05). A single-biopsy has little effect on the testis, especially on overall fertility. A triple-biopsy showed higher degree of the testicular damage but without a significant impact on overall fertility. Semen analysis showed that single- and triple-biopsies did not have a significant effect on sperm count, motility and morphology. Conclusion: Biopty gun procedure is a cheap, simple and reliable method for testicular biopsy in rats without a significant effect on sperm count, motility and morphology.

scholarly journals Impact of percutaneous embolization versus subinguinal microsurgical ligation on semen parameters in primary varicocele patients: comparative study

2020 ◽  
Vol 51 (1) ◽  
Author(s):  
Haytham M. Nasser ◽  
Ahmed Hussein ◽  
Gad M. Behairy ◽  
Mostafa Abdo
Keyword(s):  
Sperm Count ◽  
Semen Analysis ◽  
Statistical Significance ◽  
Semen Parameters ◽  
Male Factor ◽  
Percutaneous Embolization ◽  
Significant Difference ◽  
Group 2 ◽  
Group 1

Abstract Background Varicocele is an abnormally dilated pampiniform plexus of the veins within the spermatic cord and is considered the most common correctable cause of male factor infertility. Many approaches are described for treatment either surgical (tradition inguinal, subinguinal, and laparoscopic) or non-surgical percutaneous embolization. During the period from August 2017 to December 2018, we prospectively analyzed the preoperative and post-operative alteration of semen parameters (at 3 and 9 months) of the data collected from 63 patients with clinically evident varicocele referred to our tertiary hospital. Patients were divided into two groups: group 1, thirty-three patients who underwent subinguinal microsurgical ligation, and group 2, thirty patients who underwent percutaneous embolization. Results Sixty-three patients enrolled in this study were divided in two groups: group 1, patients who underwent surgery, and group 2, patients who underwent embolization; the mean age is 24.6 ± 1.27 years in group 1 and 23.7 ± 2 years in group 2; there was no statistically significant difference between the two groups as regards BMI, diabetes, hypertension, and smoking. Bilaterality was present in 15.2% of group 1 patients and 10% in group 2 patients (P value 0.06). Most of the patients were classified as grades 2 and 3 with no statistical significance regarding severity of the disease. Preoperative semen parameters for patients including sperm count, motility, and abnormal forms showed no statistically significant difference between the two groups. Post-intervention semen analysis was done twice during follow-up after 3 months and 9 months from the date of intervention. After 3 months, the semen parameters were improved in both groups in spite of the higher sperm count in group 2 but with no statistical significance. After 9 months follow-up, semen analysis showed persistent increase in sperm mobility in group 1 patients in comparison to group 2 patients. Both groups had better improvement in count of normal form with no statistical significant change. Conclusion Improvement of semen parameters while treating primary varicocele by either subinguinal microsurgery approach or percutaneous embolization shows equivalent outcomes.

scholarly journals SEMEN pH;

2012 ◽  
Vol 19 (02) ◽  
pp. 234-241
Author(s):  
HENRY. A. MWAKYOMA ◽  
ERICK. P. MAGOROSA
Keyword(s):  
Hormonal Regulation ◽  
Seminal Fluid ◽  
Sperm Count ◽  
Semen Analysis ◽  
Staining Technique ◽  
Semen Parameters ◽  
Morphological Examination ◽  
Pathology Laboratory ◽  
Cross Sectional ◽  
The World

Background: Male infertility is a frequent reproductive health problem in the world. It is usually related to abnormal spermproduction or function and these abnormalities can occur anywhere in the production of sperm including hormonal regulation, storage andtransport of sperm. Various factors are known to be responsible for seminal fluid abnormalities. Usually the first step in evaluating for maleinfertility is semen analysis. Setting: The study was conducted at Muhimbili National Hospital mainly in the department of Pathology laboratory,cytology unit. Study design: The study was a hospital based cross-sectional type. Objective: To determine semen pH in patients presenting withinfertility complains and relate how pH of seminal fluid and other semen parameters influence each other. Material and methods: Beforesemen collection, patients were instructed to abstain from sexual intercourse for a minimum of 48 hours to 7 days and collect semen bymasturbation and transport it to the laboratory through shirt pocket. Semen was to reach the laboratory for examination in not more than onehour from time of collection. Semen was examined macroscopically for volume, colour, viscosity and pH by using a pH meter (Consort C830)followed by microscopic examination which included motility of spermatozoa and sperm count by using Neuber counting chamber. The smearwas made on glass slides, fixed in 95% ethyl alcohol for 30 minutes then stained by using Papanicolaou’s staining technique and then analyzedmicroscopically for morphological examination. Results: In the analysis of the influence of semen parameters on semen pH, there wasdecrease in seminal fluid pH with age whereby as age increased the pH of seminal fluid decreased.. The general trend observed was that thepH of seminal fluid tended to decrease with an increase in the days of abstinence. pH tended to decrease with an increase of seminal fluidvolume. The pH of seminal fluid also increased with an increase in viscosity (Hyperviscosity >Hypoviscosity). The pH of seminal fluid in patientswith less than 50% forward progressive movement of spermatozoa was higher when compared to those with more than 50% forwardprogressive movement. pH had an influence on the motility of spermatozoa. Conclusions and recommendation: pH and other parameterstended to have an influence each other during seminal analysis in our study. There is a variation of pH in different parts of the World according tothe studies done. It is recommended that pH should be included during seminal analysis because our study has shown that it affects most of theseminal fluid parameters in and contribute to the problem of infertility.

scholarly journals Perbandingan Nilai Laju Endap Darah Antara Pengukuran Metode Manual Westergren Dan Alat Automatik Pada Sampel Darah Sitrat Penderita Tb Paru Di Rsud. Dr. Dradjat Prawiranegara Serang

2021 ◽  
Vol 3 (3) ◽  
pp. 426-431
Author(s):  
Destri Siti Juleha ◽  
Deviani Utami ◽  
Ade Utia Detty
Keyword(s):  
Pulmonary Tuberculosis ◽  
Sedimentation Rate ◽  
Vertical Tube ◽  
Mean Value ◽  
Automatic Method ◽  
Purposive Sampling ◽  
Significant Difference ◽  
Post Test ◽  
Automatic Methods ◽  
The Mean

ABSTRACTBackground: Erythrocytes Sedimentation Rate (ESR) is a test to determine the rate of erythrocytes settling blood containing anticoagulants in a vertical tube within a certain time. ESR is generally used to check and monitor for tissue damage, inflammation and indicate disease. ESR examination can be done by manual and automatic methods. LED levels in pulmonary TB patients generally have increased.Objectives: Knowing the difference in the measurement results of the erythrocytes sedimentation rate (ESR) between the Westergen manual and automatic methods in patients with pulmonary tuberculosis.Methods: Laboratory experiments with a post-test-only approach. The number of samples was 30 people and was taken by purposive sampling. The research data were obtained from the results of the ESR examination using the Westergren manual and automatic methods. Results: Examination of the sedimentation rate of healthy respondents used the Westergren method had an average of 9,40 mm/hour while in the automatic method 10,15 mm/hour. The examination of sedimentation rate of pulmonary tuberculosis respondents with the Westergren method had an average of 66,13mm/hour, while the Automatic method was 67,80 mm/hour. There was no significant difference in the mean value of ESR between the measurement method used manual Westergren and Automatic methods in patients with pulmonary tuberculosis ( p = 0,878).   Conclusion: There is no significant difference in the mean value of ESR between measurements using the manual Westergren method and automatic in patients with pulmonary tuberculosis. Keywords: Erythrocytes Sedimentation Rate, Method, Westergren, Automatic  PERBANDINGAN NILAI LAJU ENDAP DARAH ANTARA PENGUKURAN METODE MANUAL WESTERGREN DAN ALAT AUTOMATIK PADA SAMPEL DARAH SITRAT PENDERITA TB PARU DI RSUD. Dr. DRADJAT PRAWIRANEGARA SERANG TAHUN 2020 Latar Belakang: Laju Endap Darah (LED) adalah pemeriksaan untuk menentukan kecepatan eritrosit mengendap dalam darah yang berisi antikoagulan pada suatu tabung vertikal dalam waktu tertentu. LED pada umumnya digunakan untuk mendeteksi dan memantau adanya kerusakan jaringan, inflamasi dan menunjukan adanya penyakit. Pemeriksaan LED dapat dilakukan dengan metode manual dan automatik. Kadar LED pada penderita TB Paru umumnya mengalami peningkatan.Tujuan: Mengetahui perbedaan hasil pengukuran Laju Endap Darah (LED) antara metode manual Westergen dan Automatik pada Penderita TB Paru. Metodologi: Eksperimen laboratorik dengan pendekatan post test only. Jumlah sampel 30 orang dan diambil dengan purposive sampling. Data penelitian diperoleh dari hasil pemeriksaan LED menggunakan metode manual Westergren dan Automatik.  Hasil: Pemeriksaan Laju Endap Darah pada responden sehat metode Westergren memiliki rata-rata 9,40 mm/jam sedangkan pada metode Automatik 10,15 mm/jam. Pemeriksaan Laju Endap Darah pada responden TB Paru metode Westergren memiliki rata-rata 66,13 mm/jam sedangkan pada metode Automatik 67,80 mm/jam. Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru (p = 0,878). Kesimpulan: Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru.Kata kunci: Laju Endap Darah, Metode, Westergren, Automatik

scholarly journals From Spermiogram to Bio-Functional Sperm Parameters: When and Why Request Them?

2020 ◽  
Vol 9 (2) ◽  
pp. 406 ◽  
Author(s):  
Rosita A. Condorelli ◽  
Aldo E. Calogero ◽  
Giorgio I. Russo ◽  
Sandro La Vignera
Keyword(s):  
Normal Form ◽  
Sperm Motility ◽  
Sperm Count ◽  
Semen Analysis ◽  
Sperm Concentration ◽  
Sperm Parameters ◽  
Sperm Parameter ◽  
Progressive Motility ◽  
Semen Volume ◽  
Chromatin Compactness

The aim of this experimental study was to evaluate whether infertile patients may benefit from the evaluation of bio-functional sperm parameters in addition to the conventional semen analysis. To accomplish this, we evaluated the correlation between conventional and bio-functional sperm parameters based on their percentile distribution in search of a potential threshold of these latter that associates with conventional sperm parameter abnormalities. The study was conducted on 577 unselected patients with infertility lasting at least 12 months. We identified cut-off values according to the median of the population for mitochondrial membrane potential (MMP), number of alive spermatozoa, and chromatin abnormality. High MMP (HMMP) (≥46.25%) was associated with sperm concentration, sperm count, progressive motility, and normal form. Low MMP (LMMP) (≥36.5%) was found to be associated with semen volume, sperm concentration, total sperm count, progressive motility, total motility, and normal form. The number of alive spermatozoa (≥71.7%) was associated with sperm concentration and progressive motility whereas abnormal chromatin compactness (≥21.10%) was associated with sperm concentration, total sperm count, and progressive motility. The data would suggest that, for every increase in the percentile category of sperm concentration, the risk of finding an HMMP≤46.25 is reduced by 0.4 and by 0.66 for a total sperm count. This risk is also reduced by 0.60 for every increase in the percentile category of sperm progressive motility and by 0.71 for total sperm motility. Each increment of percentile category of the following sperm parameter was followed by a decrease in the risk of finding an LMMP≤36.5: sperm concentration 1.66, total sperm count 1.28, sperm progressive motility 1.27, total sperm motility 1.76, and normal form 1.73. Lastly, the data showed that, for every increase in the percentile category of total sperm count, the risk of finding an abnormal chromatin compactness ≤21.10 is reduced by 1.25 (1.04–1.51, p < 0.05) and an increase of total sperm motility is associated with a reduced risk by 1.44 (1.12–1.85, p < 0.05). Results suggest a correlation between bio-functional and conventional sperm parameters that impact the sperm fertilizing potential. Therefore, the evaluation of bio-functional sperm parameters by flow cytometry may be useful to explain some cases of idiopathic male infertility.

scholarly journals Effects of Sperm Parameters on Pregnancy Rate in Patients Undergoing Intrauterine Insemination

2020 ◽  
pp. 1
Author(s):  
Mehmet Solakhan ◽  
Mustafa Demir
Keyword(s):  
Intrauterine Insemination ◽  
Sperm Count ◽  
Sperm Concentration ◽  
Sperm Parameters ◽  
Motile Sperm ◽  
Progressive Motility ◽  
Age Related ◽  
Significant Difference ◽  
Sperm Volume ◽  
Infertile Couples

<p><strong>OBJECTIVE:</strong> In this study, the effects of sperm parameters on the success of intrauterine insemination were investigated. </p><p><strong>STUDY DESIGN:</strong> The data from 309 infertile couples who were admitted between 2012-2018 without a female factor were analyzed retrospectively and included in the study. After the administration of gonadotropin and hCG (5000-10000 IU), single insemination was performed in 36-40 hours in all cycles. All couples underwent routine infertility screening. The relationship between sperm parameters (motility, morphology, sperm count), patient age, duration of infertility with intrauterine insemination success was evaluated.</p><p><strong>RESULTS:</strong> There was no statistically significant difference between the two groups in terms of mean age and age related-parity. There was no statistically significant difference between male ages, liquefaction, and sperm volumes between the two groups (p=0.898, p=0.448, p=0.651). Before washing; There was a statistically significant difference between the sperm concentration, percentage of total motile sperm, percentage of progressive motility sperm, percentage of normal sperm morphology, and total sperm count between the two groups (p=0.0001, p=0.0001, p=0.0001, p=0.0001, p=0.0001). After sperm washing; the results were similar to those obtained before washing. While statistically significant difference was observed between sperm volume and sperm concentrations (p=0.023, p=0.018), no significant difference was observed between the two groups in total sperm count (p=0.612).</p><p><strong>CONCLUSION:</strong> As a result, during the application of intrauterine insemination to infertile couples, total motile sperm count, progressive motility sperm count ratio and high sperm ratio with normal morphology used in order to increase pregnancy success can be considered as criteria that increase the chances of success.</p>

scholarly journals Processed meat intake in relation to semen quality indicators among men attending a fertility clinic

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Anna Danielewicz ◽  
Katarzyna Przybyłowicz ◽  
Jakub Morze
Keyword(s):  
Quality Indicators ◽  
Semen Quality ◽  
Negative Impact ◽  
Sperm Count ◽  
Semen Analysis ◽  
Sperm Concentration ◽  
World Health ◽  
Processed Meat ◽  
Cross Sectional ◽  
Meat Intake

AbstractIt is estimated that in Central and Eastern Europe 8–12% of men are infertile, and in the case of 20% of infertile couples in the region, indicates a 56% part of the malefactor in the occurrence of infertility. Numerous studies have shown that a healthy diet with a high intake of fish and seafood, poultry, vegetables, fruits, legumes, through the high content of antioxidants are associated with better parameters of semen quality and reduced risk of asthenozoospermia. Men's diets may affect spermatogenesis as reflected in semen quality indicators, but the literature on the relation between meat intake and semen quality is limited. Our objective was to prospectively examine the relation between meats including red, poultry, proceesed and fish and indicators of semen quality. Men in subfertile couples presenting for evaluation at the Olsztyn Hospital Fertility Center were invited to participate in an ongoing study of environmental factors and fertility. This cross-sectional study was carried out in 208 men aged 18–55 years from Northern-Eastern Poland. Semen samples were collected at the clinic and analyses were performed by an experienced technician. Semen microscopic measurements were determined with the use of computer-aided semen analysis (CASA) and evaluated according to the World Health Organization (WHO) guidelines. A total of men completed a validated food-frequency questionnaire and subsequently provided semen samples. We used linear mixed regression models to examine the relation between meat intake and semen quality indicators (total sperm count, sperm concentration, progressive motility, morphology, and semen volume) while adjusting for potential confounders. After adjustment for age, BMI, physical activity, residence place and education, one serving increase in intake of processed meat was associated with a 56% higher risk of abnormal progressive sperm motility (OR = 1.56 95%CI:1.09–2.21). Consuming processed meat may have a negative impact on sperm counts and morphology. Potentially, these products may be a significant source of saturated and trans fatty acids, xenobiotics, mainly xenoestrogen, and steroids. Is need to clarify the potential effect of meat products, especially processed meat, on male reproductive potential in RCTs or longitudinal studies. Future findings may be useful to establish a more precise recommendation connected with red and processed meat intake in the context of reproductive health.

Seminal fluid analysis changes after testicular varicocelectomy in a sample of Iraqi patients

2021 ◽  
Vol 3 (1) ◽  
pp. 13-25
Author(s):  
Anwar Majed ◽  
Manal Rasheed ◽  
Mohammed Jasim
Keyword(s):  
Seminal Fluid ◽  
Sperm Count ◽  
Semen Analysis ◽  
Statistical Significance ◽  
Sperm Concentration ◽  
P Value ◽  
Factors Affecting ◽  
Fluid Analysis ◽  
Medical City ◽  
Fluid Parameters

Background: Semen analysis measures ejaculate volume, pH, sperm count, motility, forward progression, and morphology. Although semen analysis is not a test for infertility, it is considered the most important laboratory test in the evaluation of male fertility. There are many factors affecting the seminal fluid parameters and testicular varicocele is one of them. Varicoceles are the most commonly seen and correctable male infertility factor. Varicocelectomy is a common operation performed for infertile males with clinical varicocele. The aim of study to evaluate the seminal fluid parameters changes after testicular varicocelectomy. Patients and Method: A prospective cohort study was done at the Al Sader Medical City in Najaf during the period from (March-October 2019). The study include 30 males with age between 18 and 32 years old who had a clinical varicocele. Seminal fluid analysis was done one before surgery and another one three months after surgery and compare between the two tests to evaluate the changes in the parameters was done, which include seminal fluid liquefaction, volume, color, PH, sperm concentration, motility and morphology. Results: There were 30 patients enrolled in this study with a mean age of 23.8 ± 3.36. Seminal fluid concentration was 19.1 ± 7.2 million/ml and it was significantly increased postoperatively by almost 84% than preoperative concentration to reach 35.1 ± 11.3 (P ≤ 0.001). The changes in progressive motile sperms’ percent improved after varicocelectomy but not reach the statistical significance (P≥0.935). The mean ± SD percent of normal morphology sperms percent preoperatively was 46.9 ± 22.9 %, and after operation, it elevated to 50.9 ± 18.6 (p value≥ 0.336 ).The patients is divided in to two subgroups (normospermic and oligospermic subgroup). Conclusion: There is a significant improvement in sperm concentration. While there is significant improvement in sperm concentration in oligospermic subgroup, so the infertile patient who has oligospermia with varicocele will get better outcome after varicocelectomy. Keywords: Seminal fluid, analysis changes, testicular varicocelectomy.

P–053 Concentration of bisphenol S in human seminal plasma negatively correlates with decreasing sperm concentration in ejaculate

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
K Franzová ◽  
M Ješeta ◽  
J Navrátilová ◽  
S Fialková ◽  
J Kalina ◽  
...  
Keyword(s):  
Seminal Plasma ◽  
Statistical Evaluation ◽  
Seminal Fluid ◽  
Sperm Count ◽  
Sperm Concentration ◽  
Dna Integrity ◽  
Negative Effects ◽  
Bisphenol S ◽  
Progressive Motility ◽  
Significant Difference

Abstract Study question Is there a relationship between concentration of bisphenol S in seminal fluid and spermiogram parameters? Summary answer Bisphenol S was detected in 81% of seminal plasma samples. Negative correlation was found between BPS concentration and total sperm count in normozoospermic men. What is known already Human spermatogenesis can be influenced by a range of chemicals present in our environment. Bisphenol S (BPS) is a very frequent compound commonly used as a softener in production of plastics, where it has replaced bisphenol A. It is an endocrine disruptor frequently associated with negative effects on reproduction. It has been observed that BPS can affect testicular development in rodent males. In addition, it has cytotoxic, reprotoxic and neurotoxic effects and induces the oxidative stress bringing negative effects on spermatogenesis. BPS has been detected in food, drinks or cosmetics. Its direct effect on spermatozoa or spermatogenesis is still unclear. Study design, size, duration A total of 38 patients (25 normozoospermic) aged 24 to 42 years, non-smokers, with BMI between 19,9–32,9 were included in this prospective study from 2018 to 2020. None of them had varicocele, urogenital infections or other urological problems. Their seminal plasma was separated by centrifugation. BPS was extracted using solvent extraction followed by preconcentration step. The samples were analysed on Agilent 6495 Triple Quadrupole. Two MS/MS transitions were used for quantitative LC-MS/MS analyses. Participants/materials, setting, methods All the men included in this study signed an informed consent and agreed with analyses of their samples. These analyses were approved by Ethical committee of University Hospital Brno. We evaluated the relationship between concentration of BPS in seminal plasma, sperm concentration, total sperm count, total motility, progressive motility, morphology and fragmentation of DNA in spermatozoa. Statistical evaluation was performed by one individual one-dimensional regression model (p-value lower than 0.05 were considered as statistically significant). Main results and the role of chance The examination revealed the presence of BPS in 31 samples of seminal plasma (81% of all the samples). In 6 samples, the concentration was under level of detection and in one sample under level of quantification. In 7 samples, a very high concentration was detected (&gt;0.1 ng/ml). These values were then compared to spermiogram parameters and sperm DNA integrity. There were no significant differences between the concentration of BPS and morphology of spermatozoa, progressive motility and total motility. In case of the DNA integrity, the opposite trend was observed, lower proportions of spermatozoa with fragmented DNA were found in samples with higher concentrations of BPS. Evaluation of sperm concentration and BPS concentration showed relationship of increasing BPS concentration with significantly lower sperm concentration, the differences were most obvious when only the normozoospermic men were compared. Evaluation of BPS concentration and total sperm count revealed the same trend with statistically significant difference in the category of normozoospermic men. Due to the small number of samples, a negative effect of extreme values on the statistical evaluation cannot be excluded. Currently, more analyses focused on detection of BPS in seminal plasma are carried out in order to obtain sufficiently larger data set. Limitations, reasons for caution A limitation is the number of samples included and analysed in this study, which slightly reduced the power of statistical analysis. Wider implications of the findings: These results document that BPS was present in 81% of analysed samples. Knowing the concentration of BPS in seminal fluid is important for understandig of impact of BPS on male fertility. Our future work will be focused on detection of other bisphenols in seminal plasma. Trial registration number MH CZ – DRO (FNBr, 65269705), AZV NV18–01–00544, Czech Ministry of Education, Youth and Sports (CZ.02.2.69/0.0/0.0/19_074/0012727)

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