سال:1399 | دوره: | شماره: |تعداد مقالات:18

Background: Although application of superparamagnetic iron oxide nanoparticles (SPIONs) in industry and medicine has increased, their potential toxicity in reproductive cells remains a controversial issue. This study was undertaken to address the response of sperm, oocyte, and resultant blastocyst to dextran-coated SPIONs (D-SPIONs) treatment during murine in vitro fertilization (IVF). Materials and Methods: In this experimental study, murine mature oocytes were randomly divided into three groups: control, and low-and high-dose groups in which fertilization medium was mixed with 0, 50 and 250 µ g/ml of DSPIONs, respectively. Sperm and/or cumulus oocyte complexes (COCs) were cultured for 4 h in this medium for electron microscopic analysis of sperm and COCs, and assessment of developmental competence and genes expression of Gpx1, Sod1, catalase, Bcl2l1 and Bax in the resultant blastocysts. Results: Ultrastructural study of sperm, oocyte, and granulosa showed destructed mitochondria and membranes in spermatozoa, vacuolated mitochondria and distorted cristae in oocytes, and disrupted nuclei and disorganized cell membranes in granulosa in a dose-dependent manner. Data showed that cleavage and blastocyst rates in the 250 µ g/ml of D-SPIONs were significantly lower than in the control group (P<0. 05). Gene expression of GPx1, Sod1, catalase, Bcl2l1 and Bax in resultant blastocysts of the high-dose group and catalase and Bax in resultant blastocysts of the low-dose group, was higher than the controls. Conclusion: There is considerable concern regarding D-SPIONs toxic effects on IVF, and mitochondrial and cell membrane damage in mouse spermatozoa and oocytes, which may be related to oxidative stress and apoptotic events.

Background: One of the important factor associated with male infertility is high production of reactive oxygen species (ROS). The main function of Nuclear factor erythroid 2-related factor 2 (NRF2) is to activate the cellular antioxidant response by inducing the transcription of a wide array of genes that can combat the harmful effects of factors such as oxidative stress. The purpose of this study was to evaluate the effect of N-acetyl-L-cysteine (NAC), as an antioxidant drug, on NRF2 Gene Expression in Asthenoteratozoospermia Men. Materials and Methods: In this randomized, blinded clinical trial study, included 50 infertile men with asthenoteratozoospermia, who received NAC (600 mg, three times daily). Sperm parameters analyzed according to the world health organization (WHO; 2010). Sperm DNA fragmentation, relative NRF2 expression, and seminal plasma level of antioxidant enzymes were measured by TUNEL assay, reverse transcription polymerase chain reaction (RT-PCR) and ELISA test, respectively. Results: After NAC treatment, findings showed a significant increase in sperm concentration and motility compared to pre-treatment status, whereas the percentage of abnormal morphology and DNA fragmentation was significantly decreased (P<0. 05). A significant improvement in expression of NRF2 gene and antioxidant enzyme levels were observed compared to pre-treatment by NAC (P<0. 05). Significant correlations were observed between NRF2 mRNA expression level, specific sperm parameters and level of antioxidant enzymes (P<0. 05). Conclusion: The results demonstrated that NAC oral supplementation protected against oxidative stress by enhancing NRF2 expression. This could improve semen parameters quality parameters in asthenoteratozoospermia men.

Background: Testicular cell conditioned medium (TCCM) has been shown to induce female germ cell development in vitro from embryonic stem cells (ESCs). Testicular cells (TCs) secrete a variety of growth factors such as growth differentiation factor-9 (GDF-9), bone morphogenetic protein 4 (BMP-4), stem cell factor (SCF), leukemia inhibitory factor (LIF), and other, that could improve oocyte maturation. Here we have investigated the effect of human TCCM (hTCCM) on in vitro maturation (IVM) and morphology of mouse oocytes. Materials and Methods: In this experimental study, 360 germinal vesicle (GV) oocytes were obtained from NMRI mice, aged 4-6 weeks that had received 5 IU pregnant mare's serum gonadotropin (PMSG) 48 hours before. GV oocytes were subjected to IVM. 120 GV oocytes were cultured in each medium; hTCCM as the test group, DMEM + 20%FBS as the control group and Ham’ s F10 + HFF medium as the sham group. The rates of the IVM and perivitelline space (PVS) changes were recorded at 8, 16 and 24 hours after culture. The metaphase II (MII) oocytes were subjected for in vitro fertilization (IVF) and the fertilization rate was evaluated after 1, 2, and 3 days. Results: There was a significant difference between the maturation rates in hTCCM (31. 67% MII) and the control [0% MII, P<0. 05, (7. 5% MI, 52. 5% deg. and 40%GV)] groups but there was not a significant difference between the maturation rates in hTCCM and the sham group (53. 33% MII, P>0. 05). IVF success rate for MII oocytes obtained from IVM in the hTCCM group was 28. 94% (n=11). Our data showed that hTCCM is an effective medium for GV oocyte growth and maturation compared to the control medium.

Background: This cross-sectional study pointed to assess the relationship between major dietary patterns and dietary diversity score with semen parameters, in infertile Iranian males. Materials and Methods: In this cross-sectional study, 260 infertile men (18-55 years old) who met the inclusion criteria, entered the study. Four Semen parameters, namely sperm concentration (SC), total sperm movement (TSM), normal sperm morphology (NSM) and sperm volume were considered according to spermogram. A 168-item food frequency questionnaire (FFQ) was used to collect dietary intakes and calculate dietary diversity score. Factor analysis was used to extract dietary patterns. Results: The following four factors were extracted: “ traditional pattern” , “ prudent pattern” , “ vegetable-based pattern” and “ mixed pattern” . After adjusting potential confounders, those in the highest quartile of the traditional pattern had 83% less odds for abnormal concentration, compared with the first quartile (OR=0. 17, 95% CI: 0. 04-00. 73); however, subjects in the highest quartile of this pattern had 2. 69 fold higher odds for abnormal sperm volume as compared with those of the first quartile (95%Cl: 1. 06-6. 82). Men in the second quartile of prudent pattern had 4. 36 higher odds of an abnormal sperm volume in comparison to the reference category (95%CI: 1. 75-10. 86), after considering potential confounders. With regard to mixed pattern, men in the second, third and fourth quartile of this pattern had respectively 85 (5%Cl: 0. 03-0. 76, ), 86 (95%Cl: 0. 02-0. 75) and 83 % (95%Cl: 0. 034-0. 9) less odds of abnormal concentration, compared with the first quartile. Additionally, no significant association was found between dietary diversity score and sperm quality parameters. Conclusion: Higher intake of the traditional diet was linked to lower abnormal semen concentration and poorer sperm volume. Also, the mixed diet was associated with reduced prevalence of abnormal semen concentration.

Background: Endometriosis is one of the most common pelvic diseases associated with dyspareunia, pelvic pain, and infertility. The primary aim of this study is to evaluate the role of diet on the risk of endometriosis among Iranian women. Materials and Methods: This case-control study was conducted in two health research centres between 2015 and 2016. There were 207 women with endometriosis (case) and 206 women without endometriosis (control) who were evaluated by laparoscopy. The women were asked about their frequency of consumption per week of portions of selected dietary items in the Iranian diet in the year before the interview. Results: The results indicated that intake of green vegetables (odds ratio [OR]=0. 39, 95% confidence interval [CI]=0. 21– 0. 74, Ptrend=0. 004), red meat (OR=0. 61, 95% CI=0. 41– 0. 91, Ptrend=0. 015) and dairy products (milk [OR=0. 65, 95% CI=0. 47– 0. 92, Ptrend=0. 014], cheese [OR=0. 53, 95% CI=0. 37– 0. 76, Ptrend<0. 001]), fresh fruit (OR=0. 68, 95% CI=0. 50– 0. 93, Ptrend=0. 015) and grain legumes (OR=0. 59, 95% CI=0. 47– 0. 77; Ptrend<0. 001) had a significant association with lower risk of endometriosis. Consumption of carrots, green tea, fish, eggs and oil was not significantly related to the risk of endometriosis. Conclusion: This study suggests that certain types of dietary components may be related to the risk of endometriosis.

Background: Endometriosis is a chronic inflammatory disorder with known immune disturbances. The aim of this study was to compare the frequency of different CD4+ T cells [T helper (Th)1, Th2, Th17 and regulatory T cells (Tregs)] in peripheral blood (PB) and peritoneal fluid (PF) of patients that have early and advanced stages of endometriosis with a control group. Materials and Methods: In this case control study, PB and PF samples were collected from women aged 24-40 years who underwent laparoscopy procedures. The frequency of CD4+ T subsets were analysed by flow cytometry and compared between three study groups; early endometriosis (stage I, II), advanced endometriosis (stage III, IV) and control (no endometriosis). T cell numbers were compared between the PB and PF in each of the aforementioned groups. Results: No statistically significant difference was found between the study groups regarding the numbers of Th1, Th2 and Th17 cells in PB. The PF of patients with advanced endometriosis had increased numbers of Th17 cells compared to the control group (P=0. 003), with P values of 0. 059 and 0. 045 in both menstrual phases. Increased numbers of Th2 cells in PF from early compared to advanced stages of endometriosis were detected exclusively in the luteal phase (P=0. 035). The control group had increased numbers of Treg and Th2 cells in the PF compared to PB (both, P value=0. 046). However, in the early stages of endometriosis there were more Th2, Th17 and Treg cells in the PF compared to PB (P values: 0. 005, 0. 047 and 0. 013, respectively), while the number of Th17 cells was higher in the PF compared with PB in the advanced stages of endometriosis (P= 0. 013). Conclusion: There were increased numbers of Th17 cells in the PF of patients with advanced stages of endometriosis, which could be related to the severity of this disease.

Background: The purpose of this study to determine the relationship between endometrial length and positive pregnancy test in patients who underwent assisted reproductive technology (ART). Materials and Methods: This cross-sectional study included patients who were referred for in vitro fertilisation/intracytoplasmic sperm injection (IVF/ICSI) therapy from 2013 to 2016. All nulliparous women who met the inclusion criteria were between 20-38 years of age and presented for ultrasound measurements prior to fresh embryo transfer (ET). Endometrial length was measured by transvaginal ultrasound (TVS) with a Medison Accuvix device on the day of human chorionic gonadotropin (hCG) administration. The relationship between endometrial length and treatment success was assessed. The independent sample t test, receiver operating characteristic (ROC) curve and the area under the curve (AUC) index and chi-square test were used for data analysis. P values <0. 05 were statistically significant. Results: There was a significant relationship between endometrial length (41. 5%) and treatment success (P<0. 05). The endometrial length of 41. 5(mm) with a sensitivity of 66. 7%, specificity of 50. 6%, positive predictive value of 46. 8%, negative predictive value of 69. 4%, and efficiency of 56. 62% can be used as a proper cut-off point with an AUC of 0. 63. Conclusion: The value of 41. 5(mm) for endometrial length can be used as a proper cut-off point for prediction of a higher ART success rate. We recommend TVS as the first step for assessment of uterine and endometrium receptivity in the ART cycle.

Background: We investigated the impact of the choice of catheter type and tenaculum use on pregnancy related outcomes in intrauterine insemination (IUI) treatments. Materials and Methods: A total of 338 consecutive IUI cycles were assessed in this retrospective study. Participants were divided according to the insemination technique-soft catheter (group 1; n=175), firm catheter (group 2; n=100), or tenaculum (group 3; n=63). Clinical, laboratory, semen parameters and pregnancy related outcomes were compared. Results: Demographic characteristics and laboratory parameters were similar between the groups (P>0. 05). The clinical pregnancy rate (CPR) was significantly higher in the firm catheter (19%, 19/100) and tenaculum (31. 7%, 20/63) groups compared to the soft catheter group (5. 1%, 9/175, P<0. 001). There were no significant differences between the groups in live birth and miscarriage rates per clinical pregnancy (P>0. 05). Conclusion: Our findings indicate that the use of a firm catheter or tenaculum for IUI might result in a higher CPR, but might not have a considerable effect on the live birth rate (LBR). Further prospective randomized studies are required to determine the long-term effects of the catheter type or tenaculum use on IUI success.

Background: Mucin-1(Muc1) is one of the first molecules in the endometrium that confronts implanting embryos. There is insufficient knowledge about the impacts of diabetes and drugs developed for diabetes treatment on expression of this molecule at the time of implantation. Therefore, this study aimed to investigate the impacts of diabetes and insulin, metformin and pioglitazone on Muc1 expression at the time of implantation. Materials and Methods: This experimental study was conducted on a total of 63 female Wistar rats divided into 9 groups. To induce type 1diabetes, streptozotocin (STZ) and for induction of type 2 diabetes, nicotinamide (NA) and STZ were injected intraperitoneally. For superovulation, human menopausal gonadotropin (HMG) and human chorionic gonadotropin (HCG) were used. Insulin, metformin and pioglitazone were administered for two weeks. Finally, the endometrial expression of Muc1 was evaluated by quantitative real-time reverse transcription– polymerase chain reaction (RT-PCR). Results: Muc1 expression was non-significantly increased in type 1 and type 2 diabetic groups compared to the control group (P=0. 61 and 0. 13, respectively); also, it increased in insulin-treated type 1 diabetic group compared to the control group (P=0. 0001). Its expression was increased in insulin-treated type 1 diabetic group compared to untreated diabetic group (P=0. 001). The expression level of Muc1 was significantly reduced in superovulated and insulin-treated type 1 diabetic group compared to the insulin-treated type 1 diabetic group (P=0. 001). Conclusion: One of the causes of fertility problems in diabetes, is changes in Muc1 expression during implantation. On the other hand, the use of insulin in these patients can even lead to overexpression of this gene and worsen the condition. However, these changes can be partially mitigated by assisted reproductive technology (ART) such as superovulation. Also, treatment with metformin and pioglitazone can restore Muc1 expression to near normal levels and has beneficial effects on implantation.

Background: 3, 4-Methylenedioxymethamphetamine (MDMA) disrupts function of the endocrine system and different organs such as heart, blood vessels, kidney, liver and nervous systems. This study was conducted to evaluate impact of MDMA on apoptosis and Zinc in the MDMA-induced apoptosis of cultured Sertoli cells by measuring Caspase-3 gene expression. Materials and Methods: In this experimental study, Sertoli cells were incubated with MDMA (0, 0. 5, 1, 3, 5 mM), Zinc (0, 8, 16, 32, 64 μ M) and Zinc (8 μ M) prior to adding MDMA (5 mM) for 24 and 48 hours. MTT assay was used for evaluating impacts of these conditions on the viability of Sertoli cells. Caspase-3 gene expression level was detected using quantitative reverse transcription PCR (qRT-PCR) in all of the tested groups. Results: Finding showed that cellular viability was decreased and level of Caspase-3 mRNA was increased in MDMA treated cells. Additionally, pre-treatment with Zinc (8 μ M) attenuated MDMA-induced apoptosis and down-regulated caspase-3. The mean of caspase-3 mRNA level (fold change ± SE) was 3. 98 ± 1. 18, 0. 31 ± 0. 28, and 1. 72 ± 0. 28 in respectively MDMA (5 mM), Zinc (8 μ M), and Zinc+MDMA groups vs. control group. The mean of Caspase-3 mRNA (fold change) was not statistically different in the tested groups (P>0. 05), unless MDMA (5 mM) group (P = 0. 008). Conclusion: We suggest that MDMA toxicity could be involved in apoptosis of Sertoli cells. In addition, Zinc could reduce MDMA-induced apoptosis by down-regulation of Caspase-3 mRNA levels.

Background: The glial cell-derived neurotrophic factor (GDNF) family plays essential roles in the maintenance, growth, regulatory and signalling pathways of spermatogonial stem cells (SSCs). In this study, we analysed the expression of anti-GDNF family receptor alpha 1 antibody (GFRa1) by immunohistochemistry (IHC), immunocytochemistry (ICC), Fluidigm real-time polymerase chain reaction (RT-PCR) and flow cytometry analyses. Materials and Methods: In this experiment study, ICC, IHC, Fluidigm RT-PCR and flow cytometry were used to analyse the expression of the germ cell marker GFRa1 in testis tissue and SSC culture. Results: IHC analysis showed that there were two groups of GFRa1 positive cells in the seminiferous tubules based on their location and expression shape-a small round punctuated shape on the basal compartment donut shape and a C-shaped expression located between the basal and the luminal compartments of the seminiferous tubules. OCT4 and PLZF positive cells may have similar patterns of expression as the first group. Assessment of the seminiferous tubule sections demonstrated that about 27% of the SSCs were positive for GFRa1. Fluidigm RT-PCR confirmed the significant expression (P<0. 001) of GFRa1 in the SSCs compared to testicular stromal cells (TSCs). Flow cytometry analysis demonstrated that about 75% of the isolated SSCs colonies were positive for GFRa1. Conclusion: The results indicated that GFRa1 had a specific expression pattern both in vivo and in vitro. This finding could be helpful for understanding the proliferation, maintenance and signalling pathways of SSCs, and differentiation of meiotic and haploid germ cells.

Background: The most common mental disorders in infertile patients are depression and anxiety. The four-item Patient Health Questionnaire-4 (PHQ-4) is a widely used tool that consists of the PHQ-2 depression and Generalized Anxiety Disorder-2 (GAD-2) scales. Given that PHQ-4 has not been validated in infertile patients, this study aimed to examine its reliability and validity in this population. Materials and Methods: Participants in this cross-sectional study consisted of 539 infertile patients from a referral fertility centre in Tehran, Iran. The PHQ-4, Hospital Anxiety and Depression Scale (HADS), World Health Organisation-Five Well-Being Index (WHO-5), Penn State Worry Questionnaire (PSWQ) and demographic/infertility questionnaires were administered to all participants. Factor structure and internal consistency of PHQ-4 were evaluated via confirmatory factor analysis (CFA) and Cronbach’ s alpha, respectively. The convergent validity of this scale was examined by its relationship with HADS, WHO-5 and PSWQ. Results: CFA results provided support for a two-factor model of PHQ-4. Internal consistency of the PHQ-4 and its subscales both were elevated with Cronbach’ s alpha coefficients of 0. 767 (PHQ-4), 0. 780 (PHQ-2) and 0. 814 (GAD-2). Inter-item correlations were between 0. 386 and 0. 639, and corrected item-total correlations were between 0. 576 and 0. 687. PHQ-4, PHQ-2 and GAD-2 showed positive correlations with measures of HADS-anxiety, HADS-depression, and PSWQ and negative correlations with WHO-5, which confirmed convergent validity. Among demographic/fertility variables, we observed that gender, infertility duration, and failure in previous treatment were correlated with PHQ-4 and its subscales scores. Conclusion: The PHQ-4 is a reliable and valid ultra-brief screening instrument for measuring both anxiety and depressive symptoms in infertile patients.

Background: Despite significant advances in reproductive technology, using donor assisted reproductive technology is a double-edged sword that has numerous challenges. One of the most challenging issues for couples is whether or not to disclose this information to donor offspring. This study, therefore, explored infertile couples’ decision to disclose donor conception to their future child. Materials and Methods: This qualitative study was conducted using content analysis approach in 2012 in the Milad Infertility Centre, Mashhad, Iran. Data were collected through semi-structured interviews with 32 infertile persons including nine couples and 14 women who were selected by purposive sampling. Data were analysed by conventional qualitative content analysis adopted by Graneheim and Lundman using MAXQDA 2010 software. Results: Two categories were emerged: ‘ not to disclose information to the child’ and ‘ to disclose information to the child’ . The first category consisted of three subcategories: 1. child support from probable harms; 2. to maintain healthy family relationships; and 3. lack of a compelling reason to disclose this information. The second category embraced four subcategories: 1. awareness of the others; 2. emergence of new living conditions; 3. appreciation for the donor; and 4. honesty among family members. The main reason for not disclosing information was to protect the child from probable harm. Conclusion: Although protecting children from possible harms was a major reason for infertile couples' secrecy, keeping this secret would not be always easy. Therefore, increasing public awareness about the donation process in order to change the beliefs of community and eliminate the infertile couples’ concerns would help them to overcome this problem. Additionally, long-term psychological counselling during and after the donation process is highly recommended.

Background: Birth spacing, especially the first birth interval (FBI), is a suitable index to investigate the delayed fertility that results in a low fertility pattern. Non-parametric familiar alternatives to the Cox proportional hazard regression (CPH) model include survival trees that can automatically discover certain types of covariate interactions according to the survival length. The aim of this research is to study FBI influential factors by applying survival trees. Materials and Methods: In this cross-sectional study, 610 married women (aged 15-49 years), were selected from different regions of Tehran, Iran in the Winter and Spring of 2017. Classification and regression trees (CART) for the FBI survival tree were fitted by taking into consideration the predictors of each woman’ s age, age at first marriage, educational level, partner’ s educational level, activity, region, house ownership, kinship, partner’ s race, marriage time attitude, and expenditure using R packages. Results: Since the PH assumption of the CPH model was not confirmed for the covariates of age at first marriage (P=0. 001), kinship (P=0. 000), partner’ s race (P=0. 001), and marriage time attitude (P=0. 042), the results of this model were not valid. Thus, a CART survival tree was fitted. The validity of the fitted model in assessing FBI was confirmed by the significant result of the log rank test (P<0. 01) for the terminal nodes and the value of the separation measure, which was greater than 1. The fitted tree had 13 terminal nodes and the most vital FBI predictor was women’ s age. The longest FBI belonged to educated and employed women, ages 30-37 years. Conclusion: Analysing patterns of birth spacing by selecting the appropriate statistical method provides important information for health policymakers. In order to formulate appropriate demographic policies, it is essential to take into consideration age, educational level and job status of the women, all of which have essential roles on their decision to have children.

The most common mesenchymal tumours of the uterine corpus originate from smooth muscle cells. Leiomyomas are commonly found in women of child bearing age; however, leiomyosarcomas occur later in life (50-55 years of age). Most uterine leiomyosarcomas occur de novo, but rare cases of leiomyosarcomas that arise from leiomyomas have been reported. We present two cases of fertile women with submucosal leiomyomas that became malignant and discuss their pathologic features and immunohistochemistry studies for P16, P53 and Ki67.

Endometrial carcinoma (EC) has a worldwide incidence of 8. 4 per 100, 000 persons per year and is a leading cause of cancer mortality in women in developed countries after ovarian and cervical cancer (1). Among the gynecological diseases, polycystic ovary syndrome and uterine leiomyomas have been associated with a potential increased risk to develop EC, whereas less robust data are available for endometriosis and adenomyosis (2)...

Coronavirus disease 2019 (COVID-19) prevalence has caused many problems in society and disrupted many regular aspects of life. COVID-19 contains major structural proteins that among them, S protein can promote fusion of the viral and cellular membranes and facilitate the entry of coronavirus into the host cells. Basigin (BSG) is one of the most important receptors for COVID-19 that mediates its entry to host cells. Also, Basigin has an important role in male and female reproduction. Basigin is expressed in the uterus and plays an important role during embryo implantation and needed for successful implantation. Therefore, disruption or inhibition of Basigin causes to a weakness in embryo implantation. Therefore, if a woman or a man is infected with COVID-19, it is recommended that they do not attempt to conception until their treatment is complete. It is also recommended tests for COVID-19 be performed on infertile couples before using assisted reproductive technology (ART).

In this article, we reviewed and compared some of COVID-19 and pregnancy guidelines; this can be useful for pregnant women including those with a history of infertility specially those undergone assisted reproductive techniques (ART). The general advice given for prenatal care is to reduce face-to-face visits. All women who refer for prenatal visits should be evaluated for signs of the infection at the time of entry. The triage of suspected women should be done separately from other patients. Outpatient monitoring with a 14-day selfquarantine can be considered for asymptomatic infected women and for those with mild symptoms. Inpatient management criteria include moderate to severe symptoms and the target level of oxygen saturation is 92 to 95% in different guidelines. In the presence of fever, it is important to conduct a thorough examination of other causes of the fever. It is important to monitor fluid intake and output, maintain fluid and electrolyte balance and prevent fluid overload. Thromboembolic prophylaxis is recommended. Corticosteroid administration is based on obstetrics indications, while in critical ill cases, it should be based on multi-disciplinary teams (MDT) decision. A positive COVID-19 result in the absence of other obstetrics causes, cannot be considered an indication for delivery in mild and asymptomatic cases. In critically ill pregnant women, an individualized decision should be made about delivery time by the MDT. General anesthetic should be avoided unless inevitable for standard procedures such as intubation is an aerosol-generating procedure (AGP). There is agreement on the point that babies born to infected mothers, even if isolated from the mother at birth, should be considered a close contact of the mother and tested for COVID-19 and separated from other neonates. Breastfeeding is encouraged and hand hygiene and face mask during feeding are highly recommended by all guidelines.