Comparative analysis of the quality of life regarding patients who underwent hip replacement in public versus private hospitals in Hungary.

The study aimed to investigate the impact of hip replacement surgery on the quality of life and to compare the outcomes by sociodemographic and surgical data in Hungarian public and private hospitals. Patients were selected at the Department of Orthopaedics (Clinical Centre, University of Pécs) and at the Da Vinci Private Clinic in Pécs. Patients completed the SF-36 and Oxford Hip Score (OHS) questionnaires before the surgery, 6 weeks and 3 months later. We also evaluated socio-demographic data, disease and surgical conditions. The research involved 128 patients, 60 patients in public, 68 patients in private hospital. Despite the different sociodemographic characteristics and surgical outcomes of public and private healthcare patients, both groups had significantly improved the quality of life 3 months after hip replacement surgery measured by OHS and SF-36 physical health scores (p < 0.001). In the mental health score, only the patients of the private health sector showed a significant improvement (p < 0.001). The extent of improvement did not differ between the two healthcare sectors according to the OHS questionnaire (p = 0.985). While the SF-36 physical health score showed a higher improvement for public patients (p = 0.027), the mental health score showed a higher improvement for private patients (p = 0.015).

Clinical Benefits of Decreased Photo-Oxidative Stress on Human Embryo Development.

OBJECTIVE: Early embryonic development is characterized by rapid cell division and gene activation, making the embryo extremely sensitive to environmental influences. Light exposure can affect embryonic development through a direct toxic effect on the embryo via the generation of reactive oxygen species. In a previous study, we demonstrated the positive effect of improved light-protected embryo culture conditions implemented in our laboratory. This study aimed to investigate the changes in human embryo development under light protection during the conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). MATERIALS AND METHODS: We tested the potential beneficial effect of light filters to reduce the risk of toxic effects of light. IVF outcomes were compared between two experimental conditions, light protection with red light filters versus no light protection as a control. RESULTS: Blastocyst development rate in IVF was significantly higher in the light-protected group than in the group treated under conventional conditions (46.6 vs. 26.7%). In the case of ICSI, we obtained a similar result (44.5 vs. 31.6%). The rate of cryopreservation with at least one embryo was higher in the light-protected phase (32.8%) than in the conventionally manipulated phase (26.8%). The abortion rate was also significantly lower during the light-protected period in IVF, resulting in a higher live birth rate. CONCLUSIONS: The implementation of light protection to reduce the embryotoxic wavelengths of light in IVF centers may improve the blastocyst development rate and embryo quality while maintaining embryo safety.

Thrombocytes and Platelet-Rich Plasma as Modulators of Reproduction and Fertility.

Thrombocytes play an essential role in hemostasis and thrombosis. Moreover, the controlled activation of thrombocytes is required in reproduction and fertility. The platelet-activating factor and the controlled activation of platelets have important roles in folliculogenesis, ovulation, placental development, implantation and embryo development. Activated platelets accumulate in the follicular vessels surrounding the follicle and, due to its released soluble molecules (factors, mediators, chemokines, cytokines, neurotransmitters), locally increase oocyte maturation and hormone secretion. Furthermore, activated platelets are involved in the pathogenesis of ovarian hyperstimulation syndrome (OHSS) and preeclampsia. Low-dose aspirin can prevent OHSS during ovulation induction, while intrauterine or intraovarian administration of platelet-rich plasma (PRP) increases the endometrium thickness and receptivity as well as oocyte maturation. Activated thrombocytes rapidly release the contents of intracellular granules and have multiple adhesion molecules and receptors on their surface. Considering the numerous homeostatic endocrine functions of thrombocytes, it is reasonable to suppose a platelet-associated regulatory system (PARS) in reproduction. Although we are far from a complete understanding of the regulatory processes, the results of PARS research and the therapeutic application of aspirin and PRP during in vitro fertilization are promising.

Disrupted Balance of the Oxidant-Antioxidant System in the Pathophysiology of Female Reproduction: Oxidative Stress and Adverse Pregnancy Outcomes.

The significance of oxidative stress in the pathophysiology of male reproductive processes has been closely studied in the last two decades. Recently, it has become clear that oxidative stress can lead to numerous pathological conditions during female reproductive processes as well, contributing to the development of endometriosis, polycystic ovary syndrome and various forms of infertility. During pregnancy, physiological generation of reactive oxygen species (ROS) occurs in association with several developmental processes including oocyte maturation and implantation. An overproduction of ROS can lead to disturbances in fetal development and increases the risk for missed abortion, intrauterine growth restriction, pre-eclampsia, premature delivery and gestational diabetes. Our review focuses on the etiological role of the disrupted oxidant-antioxidant system during human gestation as it relates to adverse pregnancy outcomes.

The Effect of Holder Pasteurization and Different Variants on Breast Milk Antioxidants.

BACKGROUND: After birth, breast milk (BM) is a known essential source of antioxidants for infants. We analyzed the non-enzymatic total antioxidant capacity (TAC), oxygen radical absorbance capacity (ORAC), and glutathione, calcium, transferrin, and total protein levels of human breast milk before and after Holder pasteurization (HoP). METHODS: The collected donor BM samples were pasteurized with HoP. RESULTS: HoP decreased TAC (-12.6%), ORAC (-12.1%), transferrin (-98.3%), and total protein (-21.4%) levels; HoP did not influence the glutathione concentration, and it increased the total calcium (+25.5%) concentration. Mothers who gave birth via Cesarean section had significantly lower TAC in their BM. TAC and glutathione levels were elevated in the BM of mothers over the age of 30. BM produced in the summer had higher glutathione and calcium levels compared to BM produced in the winter. The glutathione concentration in term milk samples was significantly higher in the first two months of lactation compared to the period between the third and sixth months. The transferrin level of BM for female infants was significantly higher than the BM for boys, and mothers with a BMI above 30 had increased transferrin in their samples. CONCLUSIONS: Antioxidant levels in human milk are influenced by numerous factors. Environmental and maternal factors, the postpartum age at breast milk collection, and Holder pasteurization of the milk influence the antioxidant intake of the infant.

Pathomechanisms of Prenatally Programmed Adult Diseases.

Based on epidemiological observations Barker et al. put forward the hypothesis/concept that an adverse intrauterine environment (involving an insufficient nutrient supply, chronic hypoxia, stress, and toxic substances) is an important risk factor for the development of chronic diseases later in life. The fetus responds to the unfavorable environment with adaptive reactions, which ensure survival in the short run, but at the expense of initiating pathological processes leading to adult diseases. In this review, the major mechanisms (including telomere dysfunction, epigenetic modifications, and cardiovascular-renal-endocrine-metabolic reactions) will be outlined, with a particular emphasis on the role of oxidative stress in the fetal origin of adult diseases.

Prevalence and Annual Health Insurance Cost of Endometriosis in Hungary-A Nationwide Study Based on Routinely Collected, Real-World Health Insurance Claims Data.

Endometriosis is a disease that is often diagnosed late and that may lead to significant reduction in quality of life and serious complications (e.g., infertility). We aimed to assess the prevalence and the annual, nationwide health insurance treatment cost of endometriosis in Hungary using a quantitative, descriptive, cross-sectional method, focusing on the year 2019. We used claims data obtained from the Hungarian National Health Insurance Fund Administration (NHIFA). Patient numbers, total and age-specific prevalence, annual health insurance expenditure, and the distribution of costs across age groups were determined. The NHIFA spent a total of HUF 619.95 million (EUR 1.91 million) on endometriosis treatment. The highest number of patients and prevalence (10,058 women, 197.3 per 100,000) were found in outpatient care. In acute inpatient care, prevalence was substantially lower (23.5 per 100,000). Endometriosis, regardless of its type, affects 30-39-year-olds in the highest number: 4397 women (694.96 per 100,000) in this age group were affected in 2019. The average annual health insurance expenditure per capita was EUR 189.45. In addition to early detection and diagnosis of endometriosis, it is of pivotal importance to provide adequate therapy to reduce costs and reduce the burden on the care system.

Insulin, Testosterone, and Albumin in Term and Preterm Breast Milk, Donor Milk, and Infant Formula.

BACKGROUND: Infants have three options for feeding: their own mother's breast milk, donor milk, or infant formula. Insulin, testosterone, total protein, and albumin levels were measured in breast milk samples from the first 6 months of lactation, in donor milk samples, and in different infant formulas. METHODS: Mothers who gave birth to term (n = 19) or preterm (n = 19) infants were recruited to collect breast milk samples during the first 6 months of lactation. The Breast Milk Collection Center (Unified Health Institution, Pécs, Hungary) provided 96 donor milk (DM) samples for analysis in our study. Insulin, testosterone, total protein, and albumin levels were measured in breast milk, donor milk, and infant formulas. RESULTS: During the first 2 months of lactation, the concentration of insulin was lower (-27.4%) while the testosterone concentration was higher (+20.8%) compared to the period between the 3rd and 6th months only in the preterm breast milk samples. The infant formulas examined did not contain insulin or testosterone. Holder pasteurization (HoP) did not influence the level of testosterone in human milk, although HoP decreased the insulin (-53.6%) and albumin (-38.6%) concentrations. CONCLUSIONS: Diet impacts the hormone intake of infants, underlining the importance of breastfeeding and the possible supplementation of formula-fed infants.

Oxidative Stress in Assisted Reproductive Techniques, with a Focus on an Underestimated Risk Factor.

Based on current findings, the presence of oxidative stress has a significant impact on the quality of gametes and embryos when performing assisted reproductive techniques (ART). Unfortunately, in vitro manipulation of these cells exposes them to a higher level of reactive oxygen species (ROS). The primary goal of this review is to provide a comprehensive overview of the development of oxidative stress in female and male reproductive systems, as well as in the case of the pre-implantation embryo and its environment. This review also focuses on the origins of ROS and the mechanisms of oxidative stress-induced damage during ART procedures. A well-known but underestimated hazard, light exposure-related photo-oxidation, is particularly concerning. The effect of oxidative stress on ART outcomes, as well as the various strategies for preventing it, are also discussed. We emphasize the role and significance of antioxidants and light protection including forms, functions, and mechanisms in the development of gametes and embryos in vivo and in vitro.

Telomere Length and Telomerase Activity of Granulosa Cells and Follicular Fluid in Women Undergoing In Vitro Fertilization.

This study aimed to evaluate the interrelationship between telomere length, telomerase activity and oxidative DNA damage in patients undergoing in vitro fertilization (IVF). This single-center, observational clinical study comprised 102 unselected, consecutive patients with various infertility diagnoses. Granulosa cells (GCs) and follicular fluid (FF) were analyzed simultaneously for telomere functions and for the marker of oxidative DNA damage, 8-hydroxy-2-deoxyguanosine (8-OHdG). An Absolute Human Telomere Lengths Quantification qPCR Assay kit and Telomerase Activity Quantification qPCR Assay kit (Nucleotestbio, Budapest, Hungary), as well as an 8-OHdG ELISA kit (Abbexa Ltd., Cambridge, United Kingdom) were used for analyses. Similar telomere lengths were found in GCs and FF, however telomerase activity was markedly depressed, while 8-OHdG levels were markedly elevated in FF compared with those in GCs (p < 0.01). Telomere lengths were independent of telomerase activity both in GCs and FF. However, GC 8-OHdG was inversely related to telomerase activity in GCs and FF (p < 0.05). Importantly, 8-OHdG levels both in GCs and FF had significant negative impact on the number of the retrieved and MII oocytes (p < 0.01), whereas FF 8-OHdG was negatively related further to the number of fertilized oocytes and blastocysts (p < 0.01). In conclusion, we could not confirm the direct association of telomere function and reproductive potential. However, oxidative DNA damage, as mainly reflected by 8-OHdG, adversely affected early markers of IVF outcome and clinical pregnancies.

[Conservative and surgical treatments performed for symptomatic pelvic organ prolapse and stress urinary incontinence in Hungary.] / A kismedencei szervek süllyedésének és a noi terheléses vizeletvesztésnek a konzervatív és sebészi kezelése Magyarországon.

INTRODUCTION AND OBJECTIVE: As clinical guidelines are available for the treatment of stress urinary incontinence, but not pelvic organ prolapse, in Hungary, the treatment of pelvic organ prolapse varies widely throughout the country and is not standardized. Due to the establishment of the Hungarian Continence and Urogynecological Association, we aimed to determine current conservative and surgical treatment trends and strategies for these conditions in Hungary and compare them with international practice. METHOD: An online questionnaire consisting of 20 multiple-choice, checkbox, multiple-choice grid, and short-answer items was sent to 40 urology and 65 gynecology departments in Hungary in September and October 2021. RESULTS: The overall response rate was 24.76%. Almost all (96.15%) respondents reported that conservative treatment options were offered as first-line therapy to patients with symptomatic pelvic organ prolapse. For symptomatic anterior-wall prolapse, anterior repair, and laparoscopic sacrohysteropexy/sacrocolpopexy were the preferred surgical options (by 28.96% and 27.42% of respondents, respectively). For apical prolapse, laparoscopic sacrofixation was the first-choice treatment (35.88%). For stress urinary incontinence, mid-urethral sling insertion with a transobturator (61.53%) or retropubic (15%) approach was the preferred intervention. CONCLUSION: The low overall response rate in this study alone reflects the current condition of Hungarian urogynecology. Our findings might provide a good basis for the improvement and refinement of diagnosis and therapy for female urinary incontinence and pelvic organ prolapse in the country. As Hungary is a new affiliated partner of the European Urogynecological Association, we hope that this goal can be achieved soon. In addition, a curriculum for urogynecological specialization is needed. Orv Hetil. 2022; 163(52): 2072-2078.

The Role of L-Arginine-NO System in Female Reproduction: A Narrative Review.

Accumulating evidence are available on the involvement of l-arginine-nitric oxide (NO) system in complex biological processes and numerous clinical conditions. Particular attention was made to reveal the association of l-arginine and methylarginines to outcome measures of women undergoing in vitro fertilization (IVF). This review attempts to summarize the expression and function of the essential elements of this system with particular reference to the different stages of female reproduction. A literature search was performed on the PubMed and Google Scholar systems. Publications were selected for evaluation according to the results presented in the Abstract. The regulatory role of NO during the period of folliculogenesis, oocyte maturation, fertilization, embryogenesis, implantation, placentation, pregnancy, and delivery was surveyed. The major aspects of cellular l-arginine uptake via cationic amino acid transporters (CATs), arginine catabolism by nitric oxide synthases (NOSs) to NO and l-citrulline and by arginase to ornithine, and polyamines are presented. The importance of NOS inhibition by methylated arginines and the redox-sensitive elements of the process of NO generation are also shown. The l-arginine-NO system plays a crucial role in all stages of female reproduction. Insufficiently low or excessively high rates of NO generation may have adverse influences on IVF outcome.

[Participation indicators of organized cervical cancer screening in Hungary]. / A szervezett lakossági méhnyakszurés részvételi mutatói Magyarországon.

The aim of this study was to determine the percentage of women in Hungary who underwent gynecological cytological examinations either as part of a screening test or diagnostic examinations. Data derived from the nationwide financing database of the Hungarian National Health Insurance Fund Management and covered the period 2008-2021. We analyzed both diagnostic and screening cytological tests. The number of diagnostic tests has decreased. The number of patients per 10,000 female inhabitants in 2021 was a national average of 840. The highest rate was observed in the counties of Hajdú-Bihar (1464/10,000 female inhabitants), Tolna (1443) and Baranya (1254). In screening, the number of cytological tests is lower compared to smearing. The annual participation rate decreased from 28% to 17%. The number of patients and the participation rate of diagnostic cytology examinations decreased during the examined period. The added value of screening cytology is moderate, the willingness to participate is low, falling short of the expected value.

[Participation indicators of organized mammography screening in Hungary between 2012-2021]. / A szervezett lakossági mammográfiás emloszurés részvételi mutatói 2012­2021 között Magyarországon.

The aim of our study is to analyze the participation indicators of screening rounds Nr. 6-10 (2012-2021) of the organized nationwide mammography screening program. Data derived from the nationwide financing database of the Hungarian National Health Insurance Fund Management and covered the period 2012-2021. We analyzed both diagnostic and screening mammography examinations. Between 2012 and 2019 the coverage (screening and diagnostic mammography) varied between 48.1-51.5, which decreased to 31.8% in 2020-2021. Within total coverage, the organized screening rate declined from 30.3-31.2 to 20.0, while the diagnostic mammography rate decreased from 17.7-20.7% to 11.8%. We can conclude that the number of both the diagnostic and screening mammography declined. In order to reduce the mortality of breast cancer, participation rate of mammography screening program should be increased.

[Participation indicators of colorectal screenings in Hungary between 2008-2021]. / A kolorektális szurések részvételi mutatói Magyarországon 2008­2021 között.

The aim of our study is to analyse the participation indicators of colorectal cancer screening between 2008-2021. Data derived from the nationwide financing database of the Hungarian National Health Insurance Fund Management. We analysed both diagnostic and screening examinations. According to our results, the screening rate was low, varying between 5.1-6.8% in the years examined. Between 2008 and 2019, the number of participating patients increased slightly. The highest number of patients can be observed in 2019 (178,568 people). In 2020 and 2021, we see a significant decrease, which is a consequence of the COVID-19 pandemic. In the number of patients of the entire examined period (2,233,963 people, 938,223 men, 1,295,740 women), the largest proportion was fecal blood detection by immunochemical method (OENO code: 22631). In 2021, at the county level, the highest number of patients can be seen in Csongrád-Csanád county (994 patients/10,000 people), and the least in Békés county (218 patients/10,000 people). The participation rate of women is higher than that of men in all counties. Participation in colorectal screening is very low. In order to prevent colorectal cancer death, it is necessary to increase the participation rate.

Prenatal dance activity enhances foetal and postnatal cognitive and motor development.

Introduction: No research has examined the impact of any physical-artistic-cognitive activity on foetal neurodevelopment. The aim of the study was to investigate the efficacy of a unique prenatal dance activity in pre- and postnatal cognitive and motor development as a complementary health care practice. Methods: 26 clinically uncomplicated primiparas and multiparas with singleton pregnancies and their later born children were examined in this prospective study at the University of Pécs, Hungary. The activity group participated in supervised, 60-min, twice-weekly, moderate-intensity prenatal dance classes for 19.56 ± 3.97 weeks, whereas the control group did not. We determined the developmental ages of their children with the Bayley Scales of Infant and Toddler Development in both groups at 5 weeks of age and in the activity group at 33 months of age. Results: Prenatal dance activity did not cause any adverse outcomes. Infants in the activity group had significantly higher mean developmental ages than the control group regarding cognitive skills (P < 0.001), receptive (P < 0.001) and expressive communication (P = 0.007), fine (P < 0.001) and gross motor (P = 0.001). As toddlers their mean developmental ages were significantly higher than their mean calendar age regarding cognitive skills (P = 0.001), receptive (P = 0.001) and expressive communication (P = 0.001), fine (P = 0.002) and gross motor (P = 0.001). Conclusions: Our results confirm the safe implementation of this prenatal dance activity and the more advanced cognitive and motor development of children in the activity group as infants compared to the control group and as toddlers compared to the norm. These results offer a novel approach to dance in pre- and postnatal clinical practice.

Pre-Treatment Physical Activity Could Positively Influence Pregnancy Rates in IVF despite the Induced Oxidative Stress: A Cohort Study on Salivary 8-Hydroxy-2'-deoxyguanosine.

(1) Background: This study was designed to define whether pretreatment habitual physical activity (PA)-induced oxidative stress (OS) influences outcome measures by using 8-hydroxy-2'-deoxyguanosine (8-OHdG) in saliva samples of patients undergoing in vitro fertilization (IVF). (2) Method: In this cohort study, samples were obtained from 26 patients (age: 34.6 ± 5.5 years, BMI: 25.3 ± 5.1, infertility: 51.0 ± 28.7 months) before the treatment and a follow-up of outcome measures of IVF/ICSI. The 8-OHdG was evaluated by Abcam's ELISA (ab201734), PA patterns by GPAQ-H and ActiGraph GT3X; (3) Results: The number of matured oocytes was positively influenced by the GPAQ-H recreation MET (R2 = 0.367, F = 10.994, p = 0.004; ß = 0.005, p = 0.004, B Constant = 4.604) and a positive significant relationship (R2 = 0.757, F = 17.692, p < 0.001, B Constant = 1.342) was found with GPAQ-H recreational PA MET (ß = 0.004, p < 0.001), and Grade 1 embryos and higher very vigorous activity (GT3X) were accompanied (R2 = 0.958, F = 408.479, p < 0.001) by higher ß-hCG levels (ß = 63.703, p ≤ 0.001). Unanticipated positive correlation between 8-OHdG and ß-hCG level (R = 0.467, p = 0.028) was noticed, and there were significant differences in 8-OHdG in biochemical pregnancies (pregnant: 54.82 ± 35.56 ng/mL, non-pregnant: 30.06 ± 10.40 ng/mL, p = 0.022) as well. (4) Conclusions: Pretreatment PA could positively influence reproductive performance in IVF/ICSI despite the induced OS. However, a more sensitive biomarker and the recommended amount of activity should be further investigated.

Introducing the Hungarian Version of the SCREENIVF Tool into the Clinical Routine Screening of Emotional Maladjustment.

Examining possible psychosocial maladjustments should be an integral part of fertility care. For the early detection of vulnerability, the present study aimed to adapt and test the reliability and validity of the Hungarian version of SCREENIVF against the Fertility Quality of Life Questionnaire (FertiQoL) in a cross-sectional on subfertile women (n = 60, age 34.6 ± 5.2 years, BMI 24.2 ± 4.9 kg/m2) at a university linked fertility clinic in South-Hungary. A confirmatory factor analysis (CFA) was conducted to investigate the construct validity. For the reliability testing, Cronbach alpha values were calculated. Spearman's rank correlation tested the criterion validity. Discriminant validity was applied using Mann−Whitney U-test and Kruskal−Wallis test. The Edinburgh Framework and COSMIN checklist were applicable for the analysis using SPSS 27.0; significance was set at p < 0.05. The confirmatory factor analysis indicated a good fit; all dimensions were reliable (α ≥ 0.70). Cronbach's alpha was excellent (0.825−0.904). Strong correlations were found between the total scale (FertiQoL) and anxiety (R = −0.507, p < 0.001), depression (R = 0.554, p < 0.001), and helplessness cognitions (R = −0.747, p < 0.001) and moderate or no correlation with acceptance cognitions (R = 0.317, p = 0.015) and social support (R = 0.230, p = 0.082). The Hungarian version of SCREENIVF proved a valid and reliable tool to measure psychological maladjustment before ART. A longitudinal, randomized, controlled trial involving the partners could further strengthen the results, which is among our long-term plans.

The possibilities of intrapartum fetal monitorization in obese pregnant women / A magzatok intrapartum monitorizálásának lehetoségei elhízott várandósokban

Obesity, as an epidemic, is one of the major public health challenges of the 21st century. It affects more and more people annually, and through its numerous negative psychological and physical effects as a risk factor it increases the morbidity and mortality of several diseases. It has a major impact on pregnancy; it is well established that both infertility and abortion is more common among obese women. During pregnancy, obesity increases the risk of intrapartum complications, affects the way of delivery, and has an impact on fetal development. Obesity puts an extra burden on the already overloaded maternal circulation, leading to electrophysiological deviations. Increased maternal fat tissue limits the assessment of fetal well-being during labor, which is external fetal monitoring (cardiotocography, CTG) nowadays. It has the advantage of being non-invasive, although subjectivity in the interpretation of the CTG trace and discrepancies in the analysis decreases the sensitivity and the reliability of the method. The current review aims to summarize what kind of intrapartum methods are currently available to have a better assessment of the fetal well-being, and to achieve better perinatal outcomes in the case of obese mothers.

The role of platelets in reproduction / A thrombocyták szerepe a reprodukcióban

It is well known that platelets play a major role in hemostasis and thrombosis. Beyond these classic functions, the controlled activation of platelets is required in reproduction and immune response. In this review, we attempt to summarize the most important roles of thrombocytes in reproduction. The most recent studies of thrombocyte research provide remarkable insights into the physiological and clinical importance of this cellular fragment. We have summarized the key findings we have taken from the relevant literature ­ including our previous publications ­ and emphasized their significance. The plateletactivating factor and the controlled activation of platelets have important role in folliculogenesis, ovulation, placental development, implantation and embryo development. Activated platelets are involved in the pathogenesis of ovarian hyperstimulation syndrome (OHSS) and preeclampsia. Lowdose aspirin can prevent OHSS during ovulation induction, while intrauterine infusion of plateletrich plasma (PRP) increases the endometrium thickness and receptivity. Activated platelets rapidly release the contents of preformed intracellular granules and have multiple adhesion molecules and receptors on their surface. Considering the numerous homeostatic endocrine functions of platelets, it is reasonable to suppose a plateletassociated regulatory system (PARS) in reproduction. Several studies prove the importance of thrombocytes in various essential physiological processes including reproduction. Although we are far from the complete understanding of the regulatory processes, the results of PARS research and the therapeutic application of aspirin and PRP during in vitro fertilisation are promising.