Fallopian Research Articles

Evaluation of women's aging influence on sperm passage inside the fallopian tube using 3D dynamic mechanical modeling.

The fallopian tubes play an important role in human fertility by facilitating the spermatozoa passage to the oocyte as well as later actively facilitating the fertilized oocyte transportation to the uterus cavity. The fallopian tubes undergo changes involving biological, physical, and morphological processes due to women aging, which may impair fertility. Here, we have modelled fallopian tubes of women at different ages and evaluated the chances of normal and pathological sperm cells reaching the fertilization site, the ampulla. By utilizing a unique combination of simulative tools, we implemented dynamic three-dimensional (3D) detailed geometrical models of many normal and pathological sperm cells swimming together in 3D geometrical models of three fallopian tubes associated with different women's age groups. By tracking the sperm cell swim, we found that for all age groups, the number of normal sperm cells in the ampulla is the largest, compared with the pathological sperm cells. On the other hand, the number of normal sperm cells in the fertilization site decreases due to the morphological and mechanical changes that occur in the fallopian tube with age. Moreover, in older ages, the normal sperm cells swim with lower velocities and for shorter distances inside the ampulla toward the ovary. Thus, the changes that the human fallopian tube undergoes due to women's aging have a significant influence on the human sperm cell motility. Our model of sperm cell motility through the fallopian tube in relation to the woman's age morphological changes provides a new scope for the investigation and treatment of diseases and infertility cases associated with aging, as well as a potential personalized medicine tool for evaluating the chances of a natural fertilization per specific features of a man's sperm and a woman's reproductive system.

Culture of Human Embryos at High and Low Oxygen Levels.

One of the parameters potentially affecting the in vitro growth of preimplantation embryos is the oxygen concentration in the culture environment. An increased oxygen concentration causes the generation of ROS which in turn can cause damage to the cells and seriously disrupt the embryonic development. Previous studies have assessed oxygen concentrations in the fallopian tubes of several mammals of between 5 and 8%, while the oxygen levels in the uterus were found to be even lower; similar measurements have been confirmed in humans. In addition, studies in mammalian embryos showed that low oxygen concentrations improve embryo development. Multiple studies on the effect of the oxygen concentration on human embryos have been conducted so far with diverse methodologies and objectives. Data from these have been included in three meta-analyses. All meta-analyses indicate the potential benefit in favor of a low oxygen concentration, though data are considered to be of a low methodological quality and further studies are considered necessary. However, based on the existing evidence, it is suggested that a low oxygen concentration should be adopted in the routine of the IVF laboratory, especially in the case of blastocyst culture.

Hysterosalpingo-foam sonography versus hysterosalpingography during fertility work-up: an economic evaluation alongside a randomized controlled trial.

What are the costs and effects of tubal patency testing by hysterosalpingo-foam sonography (HyFoSy) compared to hysterosalpingography (HSG) in infertile women during the fertility work-up? During the fertility work-up, clinical management based on the test results of HyFoSy leads to slightly lower, though not statistically significant, live birth rates, at lower costs, compared to management based on HSG results. Traditionally, tubal patency testing during the fertility work-up is performed by HSG. The FOAM trial, formally a non-inferiority study, showed that management decisions based on the results of HyFoSy resulted in a comparable live birth rate at 12 months compared to HSG (46% versus 47%; difference -1.2%, 95% CI: -3.4% to 1.5%; P = 0.27). Compared to HSG, HyFoSy is associated with significantly less pain, it lacks ionizing radiation and exposure to iodinated contrast medium. Moreover, HyFoSy can be performed by a gynaecologist during a one-stop fertility work-up. To our knowledge, the costs of both strategies have never been compared. We performed an economic evaluation alongside the FOAM trial, a randomized multicenter study conducted in the Netherlands. Participating infertile women underwent, both HyFoSy and HSG, in a randomized order. The results of both tests were compared and women with discordant test results were randomly allocated to management based on the results of one of the tests. The follow-up period was twelve months. We studied 1160 infertile women (18-41 years) scheduled for tubal patency testing. The primary outcome was ongoing pregnancy leading to live birth. The economic evaluation compared costs and effects of management based on either test within 12 months. We calculated incremental cost-effectiveness ratios (ICERs): the difference in total costs and chance of live birth. Data were analyzed using the intention to treat principle. Between May 2015 and January 2019, 1026 of the 1160 women underwent both tubal tests and had data available: 747 women with concordant results (48% live births), 136 with inconclusive results (40% live births), and 143 with discordant results (41% had a live birth after management based on HyFoSy results versus 49% with live birth after management based on HSG results). When comparing the two strategies-management based on HyfoSy results versus HSG results-the estimated chance of live birth was 46% after HyFoSy versus 47% after HSG (difference -1.2%; 95% CI: -3.4% to 1.5%). For the procedures itself, HyFoSy cost €136 and HSG €280. When costs of additional fertility treatments were incorporated, the mean total costs per couple were €3307 for the HyFoSy strategy and €3427 for the HSG strategy (mean difference €-119; 95% CI: €-125 to €-114). So, while HyFoSy led to lower costs per couple, live birth rates were also slightly lower. The ICER was €10 042, meaning that by using HyFoSy instead of HSG we would save €10 042 per each additional live birth lost. When interpreting the results of this study, it needs to be considered that there was a considerable uncertainty around the ICER, and that the direct fertility enhancing effect of both tubal patency tests was not incorporated as women underwent both tubal patency tests in this study. Compared to clinical management based on HSG results, management guided by HyFoSy leads to slightly lower live birth rates (though not statistically significant) at lower costs, less pain, without ionizing radiation and iodinated contrast exposure. Further research on the comparison of the direct fertility-enhancing effect of both tubal patency tests is needed. FOAM trial was an investigator-initiated study, funded by ZonMw, a Dutch organization for Health Research and Development (project number 837001504). IQ Medical Ventures provided the ExEm®-FOAM kits free of charge. The funders had no role in study design, collection, analysis, and interpretation of the data. K.D. reports travel-and speakers fees from Guerbet and her department received research grants from Guerbet outside the submitted work. H.R.V. received consulting-and travel fee from Ferring. A.M.v.P. reports received consulting fee from DEKRA and fee for an expert meeting from Ferring, both outside the submitted work. C.H.d.K. received travel fee from Merck. F.J.M.B. received a grant from Merck and speakers fee from Besins Healthcare. F.J.M.B. is a member of the advisory board of Merck and Ferring. J.v.D. reported speakers fee from Ferring. J.S. reports a research agreement with Takeda and consultancy for Sanofi on MR of motility outside the submitted work. M.v.W. received a travel grant from Oxford Press in the role of deputy editor for Human Reproduction and participates in a DSMB as independent methodologist in obstetrics studies in which she has no other role. B.W.M. received an investigator grant from NHMRC GNT1176437. B.W.M. reports consultancy for ObsEva, Merck, Guerbet, iGenomix, and Merck KGaA and travel support from Merck KGaA. V.M. received research grants from Guerbet, Merck, and Ferring and travel and speakers fees from Guerbet. The other authors do not report conflicts of interest. International Clinical Trials Registry Platform No. NTR4746.

Reversible Mechanical Contraception and Endometriosis Treatment Using Stimuli-Responsive Hydrogels.

Female sterilization via fallopian tube ligation is a common procedure; However, after the operation, over 10% of women seek re-fertilization, which is frequently unsuccessful. In addition, there is evidence that fallopian tubes contribute to the spread of endometriotic tissue as they serve as channels for proinflammatory media entering the abdominal cavity via retrograde menstruation. Here, stimuli-degradable hydrogel implants are presented for the functional, biocompatible, and reversible occlusion of fallopian tubes. The hydrogel implants, designed with customized swelling properties, mechanically occlude fallopian tubes in a high-performance manner with burst pressures reaching 255-558mmHg, exceeding normal abdominal pressures (95mmHg). Their damage-free removal can be achieved within 30 min using near-visible UV light or a glutathione solution, employing a method akin to standard fallopian tube perfusion diagnostics. Ultrasound-guided implant placement is demonstrated using a clinical hysteroscope in a human-scale uterus model and biocompatibility in a porcine in vivo model. Importantly, the prevention of live sperm as well as endometrial cell passage through blocked fallopian tubes is demonstrated. Overall, a multifunctional system is presented that constitutes a possible means of on-demand, reversible contraception along with the first-ever mechanical approach to abdominal endometriosis prevention and treatment.

Ovarian tissue biopsy for cryopreservation by vaginal natural orifice transluminal endoscopic surgery: a new approach for a minimal invasive ovarian biopsy

Vaginal natural orifice transluminal endoscopic surgery (vNOTES) is an emerging surgical procedure that combines the advantages of the vaginal approach with laparoscopic vision and instrumentation. Shorter hospitalization and lesser postoperative pain associated with vNOTES may be explained by the advantages of this innovative surgical approach (e.g., absence of abdominal incisions, shorter operative time, and lower insufflation pressure). Ovarian tissue cryopreservation allows to preserve reproductive and endocrine functions in young women with oncological disease at risk of premature ovarian insufficiency (POI) caused by gonadotoxic treatments. Ovarian tissue biopsy for cryopreservation consists of a large biopsy of 1 or both ovaries that is usually performed by laparoscopy. Then, the removed ovarian tissue is cryopreserved for the future transplant after cancer remission. The volume of ovarian biopsy ranges from 50% of the ovary for women at moderate risk of POI to 70%-100% of it for those at high risk. The inclusion criteria for ovarian tissue cryopreservation are women aged <35 years who cannot delay start of oncological treatments for follicle cryopreservation, with a moderate or high risk of POI and good chance of 5-year survival. Ovarian tissue cryopreservation cannot be performed if tumor treatments include uterine irradiation or for tumors at risk of ovarian metastases (as in the case of ovarian cancer, leukemia, neuroblastoma, or Burkitt lymphoma). Despite widespread adoption of vNOTES in gynecology, ovarian biopsy for cryopreservation has never been performed using this route. Step-by-step explanation of the procedure with descriptive text and narrated video footage. Tertiary-level referral academic center. A 27-year-old patient recently diagnosed with low-grade follicular non-Hodgkin lymphoma was referred to our center for ovarian tissue cryopreservation before chemotherapy. The patient included in this study gave informed consent for publication of the video and posting of the video online including social media, the journal website, scientific literature websites (e.g., PubMed, ScienceDirect, and Scopus), and other applicable sites. Because of the nature of the study, institutional review board approval was not required. Access to the peritoneal cavity was created by a 3-cm posterior colpotomy. The peritoneum was then opened using cold scissors and temporarily fixed to the posterior vaginal wall. The GelPOINT Mini Advanced Access Platform (Applied Medical, Rancho Santa Margarita, CA), with 1 10-mm and 2 5-mm trocars, was used as the vNOTES port. The inner Alexis ring of the GelPOINT was inserted through the colpotomy into the pouch of Douglas. A hysterometer was placed into the uterine cavity to keep the uterus anteverted during the surgery. A pneumoperitoneum was created to a pressure of 8 mm Hg, and the operating table was tilted to a 20° Trendelenburg position. A 10-mm rigid 30° camera was inserted in the inferior and larger trocar, and both ovaries were visualized. Seventy percent of the left ovary was removed with cold scissors to minimize trauma on the surgical specimen. After removal of the GelPOINT cap, ovarian biopsy was immediately picked up by the biologist of our fertility center. The ovary was coagulated with a bipolar instrument. The hysterometer was then replaced by a uterine manipulator to perform tubal patency test, and blue dye passage through both salpinges was observed. Finally, the Alexis retractor and stich on the posterior peritoneum were removed, and the vagina was sutured using interrupted stiches. The total operative time was 25 minutes. Ovarian tissue biopsy for cryopreservation by vNOTES. No intraoperative and postoperative complications were reported, and the patient was discharged after 24 hours from surgery. Vaginal natural orifice transluminal endoscopic surgery may be a feasible alternative approach to laparoscopy for ovarian tissue cryopreservation: it allows an easy access to the ovaries and removal of different tissue volumes. Patients undergoing ovarian cryopreservation may benefit from the vNOTES approach because a rapid postoperative recovery is crucial to start chemotherapy in a short time. As for other vNOTES procedures, accurate selection of patients seems to be crucial for a successful ovarian tissue cryopreservation. We believe that the inclusion and exclusion criteria reported for other gynecologic procedures performed through vNOTES may also be valid for ovarian tissue cryopreservation by vNOTES. Women at high risk of pelvic adhesions (e.g., coexistent endometriosis, previous pelvic surgery, or inflammatory pelvic disease), those with an increased body mass index or enlarged uterus, and those with cervical, vaginal, or uterine cancer cannot be considered for this approach because all these factors are associated with failure of vNOTES. On the other hand, women with no history of surgery, endometriosis, and large myomas may benefit from the vNOTES approach, and these women represent most of patients who undergo ovarian tissue cryopreservation. Further and larger studies are needed to assess the efficacy and safety of this new approach.

Salpingectomy for ectopic pregnancy reduces ovarian cancer risk-a nationwide study.

Recent studies propose fallopian tubes as the tissue origin for many ovarian epithelial cancers. To further support this paradigm, we assessed whether salpingectomy for treating ectopic pregnancy had a protective effect using the Taiwan Longitudinal National Health Research Database. We identified 316 882 women with surgical treatment for ectopic pregnancy and 3 168 820 age- and index-date-matched controls from 2000 to 2016. In a nested cohort, 91.5% of cases underwent unilateral salpingectomy, suggesting that most surgically managed patients have salpingectomy. Over a follow-up period of 17 years, the ovarian carcinoma incidence was 0.0069 (95% confidence interval [CI] = 0.0060 to 0.0079) and 0.0089 (95% CI = 0.0086 to 0.0092) in the ectopic pregnancy and the control groups, respectively (P < .001). After adjusting the events to per 100 person-years, the hazard ratio (HR) in the ectopic pregnancy group was 0.70 (95% CI = 0.61 to 0.80). The risk reduction occurred only in epithelial ovarian cancer (HR = 0.73, 95% CI = 0.63 to 0.86) and not in non-epithelial subtypes. These findings show a decrease in ovarian carcinoma incidence after salpingectomy for treating ectopic pregnancy.

Clinical analysis of complete uterine rupture during pregnancy

BackgroundUterine rupture in pregnant women can lead to serious adverse outcomes. This study aimed to explore the clinical characteristics, treatment, and prognosis of patients with complete uterine rupture.MethodsData from 33 cases of surgically confirmed complete uterine rupture at Chenzhou No.1 People’s Hospital between January 2015 and December 2022 were analyzed retrospectively.ResultsIn total, 31,555 pregnant women delivered in our hospital during the study period. Of these, approximately 1‰ (n = 33) had complete uterine rupture. The average gestational age at complete uterine rupture was 31+4 weeks (13+1–40+3 weeks), and the average bleeding volume was 1896.97 ml (200–6000 ml). Twenty-six patients (78.79%) had undergone more than two deliveries. Twenty-five women (75.76%) experienced uterine rupture after a cesarean section, two (6.06%) after fallopian tube surgery, one (3.03%) after laparoscopic cervical cerclage, and one (3.03%) after wedge resection of the uterine horn, and Fifteen women (45.45%) presented with uterine rupture at the original cesarean section incision scar. Thirteen patients (39.39%) were transferred to our hospital after their initial diagnosis. Seven patients (21.21%) had no obvious symptoms, and only four patients (12.12%) had typical persistent lower abdominal pain. There were 13 cases (39.39%, including eight cases ≥ 28 weeks old) of fetal death in utero and two cases (6.06%, both full term) of severe neonatal asphyxia. The rates of postpartum hemorrhage, blood transfusion, hysterectomy were 66.67%, 63.64%, and 21.21%. Maternal death occurred in one case (3.03%).ConclusionsThe site of the uterine rupture was random, and was often located at the weakest point of the uterus. There is no effective means for detecting or predicting the weakest point of the uterus. Rapid recognition is key to the treatment of uterine rupture.

Nursing care in complicated ectopic pregnancy

Introduction: Ectopic pregnancy is the implantation of the embryo that occurs outside the endometrial lining of the uterine cavity: in the fallopian tube, the uterine interstitium, the cervix, the ovary or the abdominal or pelvic cavity. Ectopic pregnancies are also known as tubal pregnancies, these in turn can cause an acute abdomen with vital compromise of the patient if not intervened in a timely manner. Objectives: To describe nursing care in complicated ectopic pregnancy. Methodology: A qualitative study was carried out, with a unique clinical case design based on the Nursing Care process (PAE), applying Maryori Gordon's functional pattern assessment guide as an instrument to a 34-year-old obstetric patient. Results: 7 nursing diagnoses were identified, of which the diagnosis was prioritized. Acute pain r/c physical injurious agents’ m/p facial expression of pain, expressive behavior. The interventions performed were satisfactory, the patient was able to reduce the intensity of pain; however, in the case of hemorrhage, the results are still indefinite due to the few hours of intervention and evaluation. Conclusions: The clinical characteristics of the patient corresponding to complicated ectopic pregnancy and the risk factors that increase possible complications were identified. The care was administered observing improvement in the altered patterns, all framed in the nursing process and thus allowing us to provide timely and quality care.

Abstract LB416: IncreasedTP53somatic evolution in the fallopian tubes of individuals at high risk of ovarian cancer

Abstract High-grade serous carcinoma (HGSC), the most common and pervasive subtype of ovarian cancer, originates in the fallopian tube epithelium from precursor lesions carrying somatic TP53 mutations. These lesions may evolve into carcinomas, eventually spreading to the ovary and peritoneum. Recent research in normal tissues and gynecologic liquid biopsies of individuals without HGSC has demonstrated that somatic TP53 mutations accumulate and clonally expand with age, suggesting that TP53 somatic evolution is part of the normal aging process​. To date, however, TP53 somatic evolution in the normal fallopian tube epithelium has not been characterized and it is unknown whether TP53mutations are more abundant in individuals with germline mutations in BRCA1 or BRCA2 (BRCA carriers) who are at a higher risk of developing HGSC​. In this study, we aimed to characterize age-related TP53 somatic mutations in the normal fallopian tube epithelium across the human lifespan and to determine whether the TP53 mutational landscape is altered in BRCA carriers. Our cohort consisted of 46 autopsy cases (age: 0-91 years) from individuals at low-risk of developing ovarian cancer and 48 prophylactic surgery cases (age: 32-69 years) from BRCA carriers. Fallopian tube tissues were collected, frozen, and macrodissected using a 1mm biopsy punch, enriching for the fallopian tube epithelium. DNA was extracted from each sample and sequenced for TP53 using ultra-deep duplex sequencing (mean depth: ~12,000x). Pathogenicity was determined using a machine learning algorithm (AlphaMissense) and a well-established predictor of TP53 pathogenicity (Seshat). Preliminary analyses in the normal fallopian tube epithelium collected across human lifespan demonstrated that the mutational profile (e.g. indels, splice, nonsense, missense, and silent mutations) in the aging fallopian tubes mirrored the mutational profile of HGSC. We also observed that the number of unique TP53 mutations and pathogenic clones increased with age, revealing TP53 somatic evolution. Additionally, the number of large TP53 mutant clones (&amp;gt;2 duplex mutant reads) increased exponentially with age, staring at age 30. When comparing the fallopian tubes of BRCA carriers to age-matched normal fallopian tubes, the percentage of pathogenic large clones in BRCA carriers was 22.8% vs. 6.0% in low-risk individuals (Fisher exact test, p &amp;lt; 0.0001), suggesting increased TP53 somatic evolution in the fallopian tubes of BRCA carriers. Altogether, our research demonstrates that TP53 somatic evolution is a normal aging phenotype in the fallopian tube, with more and larger pathogenic clones occurring later in life. Preliminary analyses in BRCA carriers indicate that somatic evolution is more prominent in these individuals, which may provide a biological explanation to the increased risk of HGSC and open new venues for better cancer prediction and prevention. Citation Format: CoohleenAnn Coombes, Brendan F. Kohrn, Jeanne U. Fredrickson, Elena Latorre-Esteves, Emma Hazard, Shreya Suresh, Marc R. Radke, Melanie Dillon, Anh P. Vo, Katherine Lai, Ronit Katz, Barbara M. Norquist, Elizabeth M. Swisher, Elizabeth U. Parker, Rosana Risques. IncreasedTP53somatic evolution in the fallopian tubes of individuals at high risk of ovarian cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr LB416.

Abstract LB381: Plasma microbiota as novel biomarkers of early epithelial ovarian cancer detection

Abstract Background: Ovarian cancer accounts for 2% of all female cancers in the United States yet it is the 5th leading cancer death among women. Advanced epithelial ovarian cancer (EOC) is associated with an overall survival rate of 30% but can be cured in up to 90% of cases if diagnosed early when the disease is still limited to the ovaries and fallopian tubes. While there is no effective screening method for EOC, developing novel and minimally invasive clinical tests is paramount to identify women with early disease as well as those who are at increased risk. Plasma-based microbiota signatures specific to EOC could become leading biomarkers of early disease in the field that complement existing clinical tools. Methods: We utilized an established institutional biobank to access 180 biobanked plasma samples from: (1) women with EOC; (2) women with non-EOC solid tumors; (3) women undergoing gynecologic-related procedures and non-EOC surgeries; and (4) healthy controls. Batch 1 included 96 plasma samples (n=24 per group) and Batch 2 included 84 samples (n=19 per group and 8 repeat EOC samples). Microbial profiles of plasma specimens were assessed using an amplicon-based sequencing method that targets the 16S rRNA gene in the bacterial genome to study bacterial phylogeny and taxonomy in diseased and healthy women. A stringent bioinformatic pipeline was applied to filter out suspicious bacterial contaminants at the genus level. Bacterial decontamination procedures in the pipeline included evaluating repeat plasma samples of EOC cases and sampling nucleic acid isolation kit reagents to serve as negative controls (only in Batch 2) . Differential abundances of the plasma microbiota among the groups were assessed using analysis of compositions of microbiomes (ANCOM) as implemented in R software package ANCOM-BC. Results: The 16S rRNA gene sequencing identified, classified, and quantified 564 bacterial genera in the circulation of women diagnosed with EOC, non-EOC solid tumors, benign gynecologic conditions, and healthy controls. Bioinformatic decontamination analysis removed bacteria: (1) with differing bacterial abundances between batches; (2) with higher bacteria in negative controls; (3) with differing bacterial abundances in repeat samples; and (4) known as contaminants in the literature that resulted in the removal of 225 high-risk bacterial contaminants. A total of 339 high quality bacteria remained for evaluation. Because we did not collect negative controls in Batch 1, only Batch 2 plasma samples (n=84; 27 in EOC group; 19 in each other group) were included in the final analysis. Women with EOC, which were primarily of the high-grade serous ovarian carcinoma histologic subtype had significantly distinct differential abundances of genera Brevibacterium (p &amp;lt;0.001), Chloronema (p &amp;lt;0.001), Facklamia (p &amp;lt;0.001), Zymomonas (p &amp;lt;0.001), and Sutterella (p &amp;lt;0.001) when compared to women with non-EOC solid tumors, benign gynecologic conditions, and healthy controls. Conclusions: These findings suggest that plasma EOC-associated bacteria could be exploited in the development of a microbial-based blood test for the diagnosis and early detection of EOC in routine practice settings. Citation Format: Diane E. Mahoney, Prabhakar Chalise, Dong Pei, Rachel Griffard, Trisha Home, Harsh Pathak, Shahid Umar, Andrew K. Godwin. Plasma microbiota as novel biomarkers of early epithelial ovarian cancer detection [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr LB381.

Abstract LB318: Exploring early precursor lesions of ovarian cancer: Insights from an in vitro model

Abstract Ovarian cancer ranks as the fifth leading cause of cancer-related deaths in women, surpassing other cancers of the female reproductive system. Recent epidemiological and molecular studies highlight the significance of high-grade serous carcinoma (HGSC), the most aggressive subtype of ovarian cancer, constituting nearly 96% of cases with mutations in p53. HGSC originates from fallopian tube secretory epithelial (FTSEC) cells through a progression of precursor lesions, ranging from p53 signatures to serous tubal intraepithelial carcinoma (STIC). The p53 signature involves a linear expansion of over 12 TP53 mutant FTSECs, morphologically normal and displaying no increase in proliferative activity. In this study, we established a model system for P53 signature by either overexpressing p53 mutations (R175H and R273H) or knocking down P53 expression in normal FTSECs maintained as 2D, 3D, or organoid cultures. We have characterized the cells using RNA seq, mass spectroscopy and functional assays. Functional assays revealed increased migration and proliferation, along with decreased apoptosis in response to the cytotoxic stimulus (cisplatin). Despite the inability of p53 signature cells to proliferate or migrate in vivo, our hypothesis posited that clonal expansion of progenitor cell with a p53 mutation maintains plasticity by preserving the stemness of one or more cells capable of responding to cues from the microenvironment. Our experiments revealed heterogeneity in the model system, reflecting the composition of p53 signature in vivo. We also observed that stem-like cells tend to organize into clusters. Notably, stem-like cluster cells bearing a p53 signature exhibit migratory behavior, whereas clusters lacking p53 do not demonstrate such mobility. Given that most high-grade serous carcinoma (HGSC) cases occur in postmenopausal women, we demonstrated induction of proliferation and migration of p53 mutant stem cells in response to stimuli from aging stromal cells (fibroblasts and autologous immune cells) and to changes in hormonal background in our model. Conclusion: This study illuminates a novel aspect of ovarian cancer development, underscoring the role of a distinct population of fallopian tube epithelial cells with stem-like properties within p53 signatures. Further investigations into the tumorigenicity of these cells hold promise for providing valuable insights into future therapeutic strategies. Citation Format: Yan E. Wang, Vera Levina, Deborah L. Galson, Anna E. Lokshin. Exploring early precursor lesions of ovarian cancer: Insights from an in vitro model [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr LB318.

Congenital Absence of Fallopian Tubes With Malpositioned Ovary Seen at Time of Endometriosis Surgery

Congenital Absence of Fallopian Tubes With Malpositioned Ovary Seen at Time of Endometriosis Surgery

Comparison of salpingectomy and tubal detorsion procedures after experimental ischemia-reperfusion injury in a rat fallopian tube model: biochemical and histopathological evaluation

To compare salpingectomy and detorsion procedures and investigate the biochemical and histopathological changes in the fallopian tubes in the experimentally isolated fallopian tube torsion model in rats. Experimental study. Experimental surgery laboratory in a training and research hospital. Twenty-seven Sprague-Dawley rats in the reproductive period. Group 1, control group (n = 6); group 2, bilateral total salpingectomy group after 4 hours of tubal ischemia (n = 7); group 3: 4 hours of bilateral tubal ischemia plus 1 week of reperfusion (n = 7); and group 4, 4-hour period of bilateral tubal ischemia plus 30 days of reperfusion (n = 7). A 22-gauge catheter was administered before and after surgery using methylene blue through the uterine horn of the rat to evaluate tubal patency. Preoperative and postoperative serum antimüllerian hormone (AMH) levels, histopathological examination of the rat tuba uterine and histopathological damage scores, antioxidant compounds (superoxide dismutase [SOD], catalase, and glutathione peroxidase [GSH-Px]), and oxidative stress end product levels (malondialdehyde [MDA] and 8-hydroxy-2'-deoxyguanosine [8-OHdG]). Although a significant difference was observed in the tissue SOD, GSH-Px, MDA, and 8-OHdG values, no significant difference was observed between the groups in serum samples. The tissue SOD and tissue GSH-Px levels in group 2 significantly decreased, and a significant increase was observed in the tissue MDA and 8-OHdG values in group 2. Among the histopathological parameters, epithelial changes, vascular congestion, and the total fallopian tube mean damage score of 4 showed a significant decrease in group 4. When the methylene blue transitions before and after ischemia-reperfusion injury were compared, the values of the methylene blue transition after ischemia-reperfusion injury in groups 2-4 significantly decreased. When the serum AMH levels were analyzed, the postoperative AMH value in group 2 significantly increased. This study reveals that biochemical and histopathological improvement is observed in the fallopian tube tissues gradually when the detorsion procedure is performed for the necrotized tubal tissue instead of salpingectomy. Although there is restoration of epithelial integrity after reperfusion, tubal passage remains absent. This study was approved by the Local Ethics Committee for Animal Experiments of the Health Sciences University, Istanbul Hamidiye Medicine Faculty (approval number 27.05.2022-9269). The study followed the ethics standards recommended by the Declaration of Helsinki.

Commentary: Three-dimensional transvaginal ultrasound diagnosis of interstitial ectopic pregnancy in a unicornuate uterus: A case report

A rare case of unicornuate uterus with interstitial ectopic pregnancy (IEP) was diagnosed using three-dimensional transvaginal ultrasound (3D-TVUS). The ultrasound revealed a "lancet-shaped" endometrial corona, a gestational sac near the uterus base extending towards the uterine serosa, and visible interstitial lines. The patient underwent laparoscopic surgery for a lesion in the right fallopian tube. 3D-TVUS was crucial in precisely locating the gestational sac, aiding in effective treatment. Interstitial ectopic pregnancies risk severe hemorrhaging upon rupture. Rapid, accurate diagnosis is vital for lifesaving treatment and preventing critical complications.

IJCM_384A: Sudden death due to a ruptured ectopic: An Autopsy case

Background: An Ectopic pregnancy occurs when fertilized ovum is implanted outside the uterine cavity. Typically, the site of this ectopic pregnancy is the Fallopian tube in about 93-97% of ectopic pregnancies. Only 50% of patients present with the classic clinical triad of ectopic pregnancy i.e., pain, amenorrhea, and vaginal bleeding. It is extremely important to diagnose a case of ectopic pregnancy to prevent rupture and internal bleeding Case Report: A 35-year-old Female, was brought to a hospital, gasping, complaining of pain abdomen, and abdominal distension. Pulses could not be felt, GCS was 3/15, blood pressure was not recordable. She was shifted to the Intensive Care Unit and intubated. Fluid correction was attempted and ionotopes were started. USG abdomen showed a hemoperitoneum, pelvic hematoma, and ruptured right adnexa. The patient was taken up for an emergency laprotomy and had a cardiac arrest on table, but could not be resuscitated. Following an Medicolegal case the body was subjected for postmortem examination, the relevant findings at autopsy will be discussed.

Radiological Evaluation of Uterine Tubes in Infertile Women with Previous Pelvic Surgery

Abstract Background: Infertility is a disease that affects 8%–12% of couples at their reproductive age. Tubal factors account for 20%–30% of infertility cases. Tubal infertility can be caused by infections, endometriosis, and complications from previous abdominopelvic surgery. Objectives: The objective of the study is to determine the impact of pelvic surgery on future fertility by examining the fallopian tubes for any potential damage using a hysterosalpingography (HSG) examination. Materials and Methods: A cross-sectional study was conducted at Nineveh Governorate, Iraq, in two clinics from March 2022 to September 2022 by examining 317 infertile females using HSG. The exam was done as part of an infertility workup. Results: The results revealed that the study included 317 infertile women patients with a mean age of 28.82 ± 6.9 years (range 17–49 years), of these, 184 patients (58.04%) with primary infertility, and 133 patients (41.95%) with secondary infertility. The years of infertility ranged between 1 and 20 years and a median of 4 years. The history of one or more previous pelvic interventions was recorded in 39 cases (12.3%). The prevalence of tubal abnormalities was noted in 23.1% of cases with previous pelvic intervention and 13.3% in other patients, with an odds ratio of 1.95 at a 95% confidence interval. Tubal abnormalities do not differ significantly according to the type of infertility, and the mean age of infertile women with tubal abnormalities is not statistically different from those with normal tubes. Conclusion: This study concludes that pelvic surgeries, particularly cesarean operations increase the risk of developing subsequent fallopian tube abnormalities and pelvic adhesions, which can lead to infertility.

An overview of the clinical profile of infertile patients who underwent hysterosalpingography

Background: Infertility is a prevalent medical issue that can arise from challenges in male or female or both partners. Pivotal contributing factors to female infertility include dysfunction, tubal issues, and peritoneal factors. Hysterosalpingography (HSG) holds significant importance in assessing abnormalities associated with the uterus and fallopian tubes. Aims and Objectives: This study aimed to assess the clinical profile and hysterosalpingographic findings of women with infertility who visited the department of radiodiagnosis for HSG. Materials and Methods: This is a cross-sectional study, where consecutive convenience-based sampling was used, with ethical clearance in place. Sixty-three infertile women of reproductive age were recruited for the study and were referred for HSG by the Department of Obstetrics and Gynecology. Results: The majority of the participants had primary infertility (71.88%) and was in the 31–35-year age group with the majority having 3–6 years of infertility and endometriosis. On HSG uterine pathology was found in 9.37% of participants and unilateral and bilateral tubal blocks were seen in 18.75% and 14.06% of cases approximately. Conclusion: HSG is a minimally invasive procedure, secure, and plays a crucial role in diagnosing uterine and tubal factors contributing to infertility.

A Rare Case of Xanthogranulomatous Salpingo-oophoritis

Background: Xanthogranulomatous salpingo-oophoritis is an infrequent and challenging diagnosis of the female genital tract. It involves the destruction of the fallopian tube and ovarian tissue by infiltrating inflammatory cells comprising lipid laden macrophages, lymphocytes, plasma cells, and multinucleated giant cells. While more commonly found in gall bladder and kidney, its occurence in female genital tract is rare. This is a case of Xanthogranulomatous salphingo-oophoritis in a 48 year woman who presented with chronic lower abdomen pain and frequent heavy menses for two months. On per abdomen examination a non tender 24 weeks size mass was felt and on vaginal examination the same mass was appreciated, seperate from the uterus. PAP was reported NILM. Ultrasound revealed uterine adenomyoma with bilateral endometrioma of ovaries and associated left hydrosalphinx. Patient underwent hysterectomy with bilateral salphingo-oopherectomy. Histopathological examination revealed uterine adenomyosis, chronic cervicitis with xanthogranulomatous salpingo-oophoritis. The patient recovered well and doing good on follow-up. Conclusion: Xanthogranulomatous salpingo-oophoritis, though rare is a significant entity because clinically it can mimic chronic pelvic inflammatory disease or endometrioma and even in some cases malignancy. Even clinical examination and imaging might not help much. Therefore, knowledge and awareness about the condition with the help of histopathology can clinch the diagnosis and also prevent radical cancer surgery

Ruptured Ectopic Pregnancy with IUD in Situ

An ectopic pregnancy is any pregnancy which has implanted outside of the womb. There are several types of ectopic pregnancies for example tubal, cervical, ovarian. Ectopic pregnancies can also implant on caesarean scars. The most common sites for implantation of an ectopic pregnancy are the fallopian tube (97%), followed by the ovary (3.2%) and the abdomen (1.3%) [1]. Ruptured ectopic pregnancies pose high risk of mortality and morbidity to the patient [2]. This is because of possibility of rupture, intraperitoneal bleeding and subsequent haemodynamic instability of the patient. According to NICE CKS, in the UK, an estimated 12,000 ectopic pregnancies are diagnosed each year [3]. In the UK, 1 in

Factors Associated With Isolated Fallopian Tube Torsion in Pediatric Patients

BackgroundIsolated fallopian tube torsion (IFTT) is a rare form of adnexal torsion that is more difficult to diagnose, which may lead to delays in treatment. Our objectives were to identify clinical and radiologic factors associated with surgically-confirmed IFTT and compare them with those of patients without torsion and with adnexal torsion (AT) in a large pediatric population. MethodsWe conducted a retrospective chart review of all patients who underwent surgery for suspected adnexal torsion from 2016 to 2019. Torsion was determined intraoperatively, with IFFT defined as those with only tubal but no ovarian torsion and AT defined as those with ovarian torsion, with or without involvement of the ipsilateral fallopian tube. Clinical and radiologic variables were compared between patients with IFTT and those without torsion and with AT using descriptive statistics. A previously-described composite score to predict torsion based on the presence of vomiting and adnexal volume (VVCS) was calculated for each patient. ResultsOf 291 patients who underwent surgery for suspected torsion, 168 had confirmed torsion: 33 (19.6%) IFTT and 135 (80.4%) AT. Patients with IFTT were more likely to be younger (12.8 vs. 14.2 years, P = 0.02), premenarchal (29.0% vs. 10.7%, P = 0.009), experience nausea (90.6% vs. 70.9%, P = 0.02) and vomiting (81.3% vs. 32.8%, P < 0.001), have a paratubal cyst on imaging (18.8% vs. 2.5%, P = 0.003), and have larger adnexal volume (143.3 vs. 64.9 ml, P < 0.001) than those without torsion. Higher BMI (26.6 vs. 22.9 kg/m2, P = 0.03), a paratubal cyst on imaging (18.8% vs. 1.5%, P < 0.001), presence of arterial (65.5% vs. 44.1%, P = 0.04) and venous Doppler flow (79.3% vs. 55.9%, P = 0.02), and radiologic impression indicating lack of torsion (37.9% vs. 16.8%, P = 0.04) were more common in IFTT than AT. The accuracy of the VVCS in predicting torsion for the IFFT group was 83.9%. ConclusionsIFTT has a similar clinical presentation to AT but with a higher likelihood of a paratubal cyst and preserved Doppler flow on imaging. IFTT should be strongly considered in patients who present with pain, nausea, and vomiting and have an adnexal mass separate from the ovary on imaging, regardless of Doppler flow. Level of EvidenceLevel II. Type of StudyPrognosis study.