Jornal Brasileiro de Reproducao Assistida最新文献

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Advanced 3Dimentional engineered microenvironment to improve of in vitro spermatogenesis: narrative review. 先进的三维工程微环境提高体外精子发生:述评。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2025-03-12 DOI: 10.5935/1518-0557.20240077
Masoud Ghorbani, Roya Hassani, Mohammad Reza Nourani, Vahabodin Goodarzi
{"title":"Advanced 3Dimentional engineered microenvironment to improve of in vitro spermatogenesis: narrative review.","authors":"Masoud Ghorbani, Roya Hassani, Mohammad Reza Nourani, Vahabodin Goodarzi","doi":"10.5935/1518-0557.20240077","DOIUrl":"10.5935/1518-0557.20240077","url":null,"abstract":"<p><p>Induction of in vitro spermatogenesis may be helpful in the treatment of infertility in azoospermic individuals and those undergoing chemotherapy. Different cultivation systems have been implemented to achieve this aim. This review study aimed to investigate the application of three-dimensional culture in the induction of in vitro spermatogenesis. Relevant studies published in English were identified using PubMed using a range of search terms related to the core focus on tissue engineering of male reproductive systems, in vitro spermatogenesis, germ cell preservation, 3D culture systems for in vitro spermatogenesis, a 3D culture of testis tissue with were last updated in end of 2023. Searches were not restricted to a particular time frame or species, although the emphasis within the review is on regenerative medicine in mammalian male fertility preservation and in vitro spermatogenesis. Spermatogenesis is one of the most complicated cellular differentiation processes in the body. Significant attempts have been made to control spermatogenesis to drive differentiation of male germ stem cells toward mature sperm. Current research efforts focus on providing appropriate microenvironmental conditions to support the process of in vitro spermatogenesis by applying the principles of cell transplantation, material science, and bioengineering. Regenerative medicine may open a new avenue to patients for restoration and maintenance of normal function in spermatogenesis. The techniques reviewed are still in development, and this paper can become the primary reference for a large body of scientists developing advanced tissue engineering for male germ cells or developing the next generation of reproductive medicine.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"160-166"},"PeriodicalIF":1.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11867261/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Symptom assessment related to the menstrual cycle to predict endometriosis and adenomyosis in university students. 与月经周期相关的症状评估预测大学生子宫内膜异位症和子宫腺肌症。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2025-03-12 DOI: 10.5935/1518-0557.20240091
Beatriz Memória Feitosa, Cristiano César Rodrigues Augusto Gonçalves, Beatriz Vieira Cavalcante, André Lucas Grangeiro de Sá Barreto Lima, Caroline Martins de Souza, Larissa Brandão Joventino, Edward Araujo Júnior, Marcelo Borges Cavalcante
{"title":"Symptom assessment related to the menstrual cycle to predict endometriosis and adenomyosis in university students.","authors":"Beatriz Memória Feitosa, Cristiano César Rodrigues Augusto Gonçalves, Beatriz Vieira Cavalcante, André Lucas Grangeiro de Sá Barreto Lima, Caroline Martins de Souza, Larissa Brandão Joventino, Edward Araujo Júnior, Marcelo Borges Cavalcante","doi":"10.5935/1518-0557.20240091","DOIUrl":"10.5935/1518-0557.20240091","url":null,"abstract":"<p><strong>Objective: </strong>To assess the prevalence of self-reported symptoms of endometriosis and adenomyosis among university students and identify potential predictors of these diseases among these symptoms.</p><p><strong>Methods: </strong>This cross-sectional study was conducted at a private university in northeastern Brazil. The students were asked to complete an electronic questionnaire using a Google Form link. Participants were asked about general information, the menstrual cycle, and bleeding symptoms. The electronic questionnaire results were compared between two groups: students who self-reported endometriosis/adenomyosis (ENDO/ADENO) and students who self-reported no endometriosis/adenomyosis (NO ENDO/ADENO).</p><p><strong>Results: </strong>Four (2.9%) students self-reported adenomyosis alone, 26 (18.6%) students self-reported endometriosis alone, and two (1.4%) students self-reported an associated diagnosis of endometriosis and adenomyosis. Participants were divided into two groups: ENDO/ADENO (n=32) and NO ENDO/ADENO (n=108). Participants in the ENDO/ADENO group reported more severe dysmenorrhea, worsening dysmenorrhea in the last 12 months, frequent absence from class, dyspareunia, and dysuria. Worsening dysmenorrhea was a predictor of endometriosis/adenomyosis in university female students (odds ratio = 5.73; 95% confidence interval, 1.91-17.22, p=0.002).</p><p><strong>Conclusions: </strong>The assessment of menstrual cycle symptoms can be used as a screening tool for patients at risk of endometriosis/adenomyosis. The progressive worsening of dysmenorrhea in the last 12 months was a predictor of endometriosis/adenomyosis diagnosis.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"127-135"},"PeriodicalIF":1.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11867262/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improvement of ovarian function in a premature ovarian failure mouse model using Vitex agnus-castus extract. 牡荆提取物对卵巢早衰小鼠卵巢功能的改善作用。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2025-03-12 DOI: 10.5935/1518-0557.20240101
Zeinab Soleimany, Fatemeh Siadat, Mona Farhadi, Zeinab Sadat Mirshaby, Zahra Sanadgol, Hossein Eyni
{"title":"Improvement of ovarian function in a premature ovarian failure mouse model using Vitex agnus-castus extract.","authors":"Zeinab Soleimany, Fatemeh Siadat, Mona Farhadi, Zeinab Sadat Mirshaby, Zahra Sanadgol, Hossein Eyni","doi":"10.5935/1518-0557.20240101","DOIUrl":"10.5935/1518-0557.20240101","url":null,"abstract":"<p><strong>Objective: </strong>Premature ovarian failure (POF) leads to infertility. Numerous researchers have endeavored to enhance ovarian function through antioxidant interventions. Extract from Vitex agnus-castus (VAC) has demonstrated a protective effect. Therefore, the objective of this study was to investigate the amelioration of ovarian function following VAC treatment in a POF mouse model.</p><p><strong>Methods: </strong>In this investigation, 30 female NMRI mice were categorized into control, POF model (cyclophosphamide 120 mg/kg I.P), and experimental groups (100, 300, and 500 of VAC extract). Parameters such as body weight, vaginal smears, and follicular evaluation were examined. FSH, estradiol levels, free radicals, and the expression of the FMR1 gene were assessed.</p><p><strong>Results: </strong>The microscopic assessment revealed that POF induced morphological alterations in ovarian tissue, whereas VAC treatment significantly ameliorated ovarian tissue conditions. The follicles number exhibited a significant reduction in the POF group; however, VAC led to an increase in follicular count and elevated estradiol levels in the treatment groups. Serum FSH levels displayed an elevation in the POF group, whereas the treatment groups exhibited a substantial reduction in FSH levels compared to the POF group. The expression of the FMR1 gene demonstrated upregulation in the POF group compared to the control group (p<0.05). Moreover, this expression significantly decreased in the 500-dose VAC group compared to the POF group (p<0.001). ROS generation exhibited a significant increase in the POF group, which was conversely mitigated in all experimental groups.</p><p><strong>Conclusions: </strong>Our findings underscore the potential of this extract to ameliorate POF symptoms, however, further investigations are needed.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"117-126"},"PeriodicalIF":1.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11867258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gender differences in behaviors toward acceptance of donor egg, sperm, and embryo in Northern Thai infertile couples. 泰国北部不育夫妇接受捐赠卵子、精子和胚胎行为的性别差异。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240042
Kanyapat Taechapeti, Sorawit Piriyasakmontri, Supitchaya Phatai, Tanyaporn Maraka, Usanee Sanmee
{"title":"Gender differences in behaviors toward acceptance of donor egg, sperm, and embryo in Northern Thai infertile couples.","authors":"Kanyapat Taechapeti, Sorawit Piriyasakmontri, Supitchaya Phatai, Tanyaporn Maraka, Usanee Sanmee","doi":"10.5935/1518-0557.20240042","DOIUrl":"10.5935/1518-0557.20240042","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to examine the behavior towards the acceptance of donor egg, donor sperm, and donor embryo of Northern Thai infertile couples, separated between men and women.</p><p><strong>Methods: </strong>A cross-sectional study was conducted at the CMEx Fertility Center, Chiang Mai, Thailand. The questionnaires consisted of sociodemographic questions and the acceptance of couples toward donor egg, sperm and embryo. The couples filled in the answers separately.</p><p><strong>Results: </strong>A total of 250 infertile couples were assessed. There were no differences in the acceptance rate of donor egg, sperm and embryo between the men and the women. Male acceptance rates were 25.6%, 18.8%, and 18.8%, respectively; while female acceptance rates were 24.4%, 18.4%, and 19.2%, respectively. Most couples (over 70%) concordantly rejected the donation program. Around 10% of couples had discordant answers. The concordance accepted for couples for donor egg, sperm and embryo was only 20%, 13.2%, and 14.8%. Older people and those who had been infertile for a longer period were significantly more likely to accept donation programs.</p><p><strong>Conclusions: </strong>There is no difference concerning the acceptance of donor gametes and embryo among men and women. Most participants reject the utilization of donor programs, the overall acceptance rate is relatively low. This may indicate the need for more adequate information and education for the community to enhance prevention programs rather than focus on the treatment with donor gametes or embryos.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"554-557"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622407/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141724715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Expression of HOXA10 and HOXA11 in the endometrium of infertile patients with chronic endometritis. 慢性子宫内膜炎不孕患者子宫内膜中 HOXA10 和 HOXA11 的表达。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240035
Ana Carolina Mendonça Hissa de Sá, Luiz Felipe Bittencourt de Araujo, Mylena Zuim Sanson, Tamyres Souza Garcia Alvim Ranzato, Amanda Rezende Passarelli Tostes, Ivan Andrade de Araujo Penna
{"title":"Expression of HOXA10 and HOXA11 in the endometrium of infertile patients with chronic endometritis.","authors":"Ana Carolina Mendonça Hissa de Sá, Luiz Felipe Bittencourt de Araujo, Mylena Zuim Sanson, Tamyres Souza Garcia Alvim Ranzato, Amanda Rezende Passarelli Tostes, Ivan Andrade de Araujo Penna","doi":"10.5935/1518-0557.20240035","DOIUrl":"10.5935/1518-0557.20240035","url":null,"abstract":"<p><strong>Objective: </strong>The study aimed to evaluate the impact of CE on the expression of HOXA10 and HOXA11 during the late proliferative phase in the endometrium of infertile women.</p><p><strong>Methods: </strong>A prospective, translational cohort study was conducted in partnership with the Hospital Universitário Antônio Pedro in Niterói and the Clínica Ginendo in Rio de Janeiro after approval by the Ethics Committee. The patients were selected to participate in the study after showing an indication for hysteroscopy. All participants were divided into three groups: infertile women with endometritis (n=10), infertile women without endometritis (n=17) and fertile women without endometritis (n=10). At hysteroscopy, two endometrial samples were obtaneid, with one sent for histopathological examination per the gynecologist's request and the other used for immunohistochemistry procedures to evaluate the expression of CD138, HOXA10 and HOXA11. CD138 was used to confirm the diagnosis of CE. The analysis of HOXA10 and HOXA11 was performed using the HScoring method for immunohistochemistry with polyclonal antibodies.</p><p><strong>Results: </strong>Women with and without endometritis had lower HOXA10 and HOXA11 expression values than women in the control group (fertile women without endometritis).</p><p><strong>Conclusions: </strong>The expression of HOXA10 and HOXA11 during the proliferative phase is not significantly different between infertile women with endometritis and infertile women without endometritis. Translational studies with a larger number of patients should be performed.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"530-534"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622399/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Oral Presentations - Abstracts of the 28th Annual Congress of the SBRA. Florianópolis/SC - Brazil, 2024. 口头报告 - 第 28 届 SBRA 年会摘要。巴西弗洛里亚诺波利斯,2024 年。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240062
{"title":"Oral Presentations - Abstracts of the 28th Annual Congress of the SBRA. Florianópolis/SC - Brazil, 2024.","authors":"","doi":"10.5935/1518-0557.20240062","DOIUrl":"10.5935/1518-0557.20240062","url":null,"abstract":"","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"701-707"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622396/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142298314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of single dose of gonadotropin-releasing hormone agonist injection in frozen-thawed embryo transfer on pregnancy outcomes: A systematic review and meta-analysis. 在冷冻解冻胚胎移植中注射单剂量促性腺激素释放激素激动剂对妊娠结局的影响:系统回顾和荟萃分析。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240054
Pongpawan Chienvichai, Natpat Jansaka, Usanee Sanmee, Kittipat Charoenkwan
{"title":"The effect of single dose of gonadotropin-releasing hormone agonist injection in frozen-thawed embryo transfer on pregnancy outcomes: A systematic review and meta-analysis.","authors":"Pongpawan Chienvichai, Natpat Jansaka, Usanee Sanmee, Kittipat Charoenkwan","doi":"10.5935/1518-0557.20240054","DOIUrl":"10.5935/1518-0557.20240054","url":null,"abstract":"<p><p>This systematic review and meta-analysis of randomized controlled trials aimed to evaluate the effect of a single-dose gonadotropin-releasing hormone agonist administration in the frozen-thawed embryo transfer cycle on pregnancy outcomes. A literature search was strategically conducted using PubMed, EMBASE, and the Cochrane Controlled Trials Register. The primary outcome was the clinical pregnancy rate. The secondary outcomes combined chemical pregnancy rate, implantation rate, ongoing pregnancy rate, live birth rate, miscarriage rate, and extrauterine pregnancy rate. Out of the 1594 citations that were found, only six met the criteria for being included in the meta-analysis. The clinical pregnancy rate was higher in the treatment group than in the control group (52.05% vs. 47.29%; p=0.04; RR=1.09; 95% CI=1.00-1.18). According to subgroup analysis based on the natural cycle, the clinical pregnancy rate with the agonist administration is significantly higher (43.75% vs. 27.35%; p=0.01; RR=1.6; 95% CI=1.10-2.32). However, there was no difference between the groups in terms of artificial cycles (p=0.80; 95% CI=0.96-1.20). The secondary outcomes did not show significant differences. We concluded that supplementing with a single dose of gonadotrophin-releasing hormone agonist can marginally increase the clinical pregnancy rate, particularly in the natural cycle. Other pregnancy outcomes do not improve with the treatment.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"691-700"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622420/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low ovarian responders produce more progesterone per follicle than normal and high responders. 与正常和高反应者相比,低卵巢反应者每个卵泡产生的孕酮更多。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240043
Alfredo Cortés-Vazquez, Alfredo Leonardo Cortés-Algara, Daniel Moreno-García, Johnny S Younis
{"title":"Low ovarian responders produce more progesterone per follicle than normal and high responders.","authors":"Alfredo Cortés-Vazquez, Alfredo Leonardo Cortés-Algara, Daniel Moreno-García, Johnny S Younis","doi":"10.5935/1518-0557.20240043","DOIUrl":"10.5935/1518-0557.20240043","url":null,"abstract":"<p><strong>Objective: </strong>Late follicular premature progesterone rise is a complex phenomenon encountered during assisted reproductive technology (ART) treatments; different etiologies can occur in the same patient. Low ovarian responders may be the best example, since higher FSH doses and ovarian aging-related changes may interact and generate a premature progesterone rise. This study aims to explore the correlation between progesterone levels on hCG day and the progesterone-to-follicle index and compare the progesterone-to-follicle index according to ovarian response.</p><p><strong>Methods: </strong>We performed a retrospective, observational, analytic, cross-sectional, and cohort study at the Reproductive Endocrinology Department at Centro Médico Nacional 20 de November between January 2015 to January 2020. After verifying for normalcy, a Spearman Rho, Principal Component Analysis, and a simple linear regression model were performed. Treatment cycles were classified according to their ovarian response. Low-ovarian responders were classified according to the Bologna Criteria. Then an ANOVA test was performed to compare each group.</p><p><strong>Results: </strong>Our results show that the progesterone-to-follicle index correlates best with progesterone levels on hCG day. Comparing all the ovarian responses, low ovarian responders have the highest progesterone-to-follicle index of the four groups.</p><p><strong>Conclusions: </strong>Low ovarian responders produce more progesterone per follicle than regular and high responders.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"549-553"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622415/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring uterine contractility frequency in infertile population: A comparative study among different control groups with and without a C-section defect. 探索不孕人群的子宫收缩频率:有剖腹产缺陷和无剖腹产缺陷的不同对照组之间的比较研究。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240037
Juan Carlos Castillo, Maria Martínez-Moya, Ana Fuentes, Belen Moliner, María Gonzalez, Andrea Bernabeu, Rafael Bernabeu
{"title":"Exploring uterine contractility frequency in infertile population: A comparative study among different control groups with and without a C-section defect.","authors":"Juan Carlos Castillo, Maria Martínez-Moya, Ana Fuentes, Belen Moliner, María Gonzalez, Andrea Bernabeu, Rafael Bernabeu","doi":"10.5935/1518-0557.20240037","DOIUrl":"10.5935/1518-0557.20240037","url":null,"abstract":"<p><strong>Objective: </strong>Women undergoing IVF who have had a previous c-section (CS) have a lower live birth rate than those with a previous vaginal delivery. However, the precise underlying mechanisms need clarification. Does a previous CS affect the pattern of uterine contractility?.</p><p><strong>Methods: </strong>Prospective evaluation in patients undergoing frozen blastocyst embryo transfer in medicated endometrial preparation cycles. Twenty patients were included in groups: A/nulliparous. B/previous vaginal delivery. C/ previous CS without a niche, whereas fifteen patients were recruited in group D (CS and a niche). Patients employed estradiol compounds and 800 mg vaginal progesterone. A 3D-scan was performed the transfer-day where uterine contractility/minute was recorded.</p><p><strong>Results: </strong>Baseline characteristics (age, BMI, smoking, endometrial thickness) were similar. Mean frequency of uterine contractions/minute was similar between groups (1.15, 1.01, 0.92, and 1.21 for groups A, B, C, and D, respectively). There was a slight increase in the number of contractions in patients with a sonographic niche versus controls, not reaching statistical significance (p=0.48). No differences were observed when comparing patients with a previous C-section (regardless of the presence of a niche) to those without a C-section, either nulliparous (p=0.78) or with a previous vaginal delivery (p=0.80). The frequency of uterine contractions was similar between patients who achieved a clinical pregnancy and those who did not (1.19 vs. 1.02 UC/min, p=0.219, respectively).</p><p><strong>Conclusions: </strong>Our study found no significant difference in the frequency of uterine contractility between patients with or without a previous C-section or sonographic diagnosed niche. Further investigation is necessary to understand the physiological mechanisms affecting implantation in patients with isthmocele.</p>","PeriodicalId":46364,"journal":{"name":"Jornal Brasileiro de Reproducao Assistida","volume":" ","pages":"543-548"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11622409/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141724714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anti-Müllerian hormone as a predictor of the number of oocytes obtained during in vitro fertilization treatments. 抗缪勒氏管激素作为体外受精治疗中获得卵母细胞数量的预测因子。
IF 1.8
Jornal Brasileiro de Reproducao Assistida Pub Date : 2024-12-03 DOI: 10.5935/1518-0557.20240049
Ana Braga Reis, Carla Leal, Márcia Barreiro, António Tomé, Emídio Vale-Fernandes
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