48 results on '"Anchan RM"'
Search Results
2. Contained Tissue Extraction Using Power Morcellation: Prospective Evaluation of Leakage Parameters
- Author
-
Cohen, SL, primary, Morris, SN, additional, Brown, DN, additional, Greenberg, JA, additional, Walsh, B, additional, Gagiulo, AR, additional, Isaacson, K, additional, Wright, K, additional, Srouji, SS, additional, Anchan, RM, additional, Vogell, A, additional, and Einarsson, JI, additional
- Published
- 2015
- Full Text
- View/download PDF
3. Nociceptor-to-macrophage communication through CGRP/RAMP1 signaling drives endometriosis-associated pain and lesion growth in mice.
- Author
-
Fattori V, Zaninelli TH, Rasquel-Oliveira FS, Heintz OK, Jain A, Sun L, Seshan ML, Peterse D, Lindholm AE, Anchan RM, Verri WA Jr, and Rogers MS
- Subjects
- Animals, Female, Humans, Mice, Pain metabolism, Pain pathology, Mice, Inbred C57BL, Disease Models, Animal, Cell Communication, Endometrium metabolism, Endometrium pathology, Endometriosis metabolism, Endometriosis pathology, Endometriosis complications, Receptor Activity-Modifying Protein 1 metabolism, Calcitonin Gene-Related Peptide metabolism, Signal Transduction, Macrophages metabolism, Nociceptors metabolism
- Abstract
Endometriosis is a debilitating and painful gynecological inflammatory disease affecting up to 15% of women and transgender men. Current treatments are ineffective for a substantial proportion of patients, underscoring the need for additional therapies with long-term benefits. Nociceptors release neuropeptides, such as calcitonin gene-related peptide (CGRP), which are known to shape immunity through neuroimmune communication. Given the comorbidity between endometriosis and migraine and the integral role of immune cells and inflammation in endometriosis, we investigated the role of CGRP-mediated neuroimmune communication in endometriosis. Using samples from eight patients with endometriosis and a nonsurgical mouse model of the disease, we found that mouse and human endometriosis lesions contain both CGRP and its coreceptor, receptor activity modifying protein 1 (RAMP1). In mice, nociceptor ablation reduced pain, monocyte recruitment, and lesion size, suggesting that nociceptor activation and neuropeptide release contribute to endometriosis lesion growth and pain. Mechanistically, CGRP changed the phenotype of macrophages to a pro-endometriosis phenotype. CGRP-stimulated macrophages demonstrated impaired efferocytosis and supported increased endometrial cell growth in a RAMP1-dependent manner. Treatment of lesion-bearing mice with US Food and Drug Administration-approved drugs that block CGRP-RAMP1 signaling reduced mechanical hyperalgesia, spontaneous pain, and lesion size. Together, our data demonstrated the effectiveness and underlying cellular mechanisms of nonhormonal and nonopioid CGRP/RAMP1 blockade in a mouse model of endometriosis, suggesting that targeting this axis may lead to clinical benefit for patients with endometriosis.
- Published
- 2024
- Full Text
- View/download PDF
4. The UPFRONT project: tailored implementation and evaluation of a patient decision aid to support shared decision-making about management of symptomatic uterine fibroids.
- Author
-
Forcino RC, Durand MA, Schubbe D, Engel J, Banks E, Laughlin-Tommaso SK, Foster T, Madden T, Anchan RM, Politi M, Lindholm A, Gargiulo RM, Seshan M, Tomaino M, Zhang J, Acquilano SC, Akinfe S, Sharma A, Aarts JWM, and Elwyn G
- Subjects
- Humans, Female, Adult, Middle Aged, United States, Uterine Neoplasms therapy, Implementation Science, Leiomyoma therapy, Decision Support Techniques, Decision Making, Shared, Patient Participation methods
- Abstract
Objective: To evaluate implementation of a patient decision aid for symptomatic uterine fibroid management to improve shared decision-making at five clinical settings across the United States., Methods: We used a type 3 hybrid effectiveness-implementation stepped-wedge design and the Reach, Effectiveness, Adoption, Implementation, Maintenance (RE-AIM) planning and evaluation framework. We conducted clinician training, monthly reach tracking with feedback to site clinical leads, patient and clinician surveys, and visit audio-recordings. Implementation strategies included assessment of organizational readiness for shared decision-making, synchronous clinician training, audit and feedback of decision aid reach, and access to multiple decision aid formats. Outcomes and analyses included patient-level reach, clinician-level adoption, and associations of patient-reported decision aid exposure (as treated) and setting-level implementation (intention-to-treat) with patient-reported (collaboRATE measure) and observed (OPTION-5 measure) shared decision-making. We also designed and assessed setting-level plans for sustainability and other factors impacting sustained decision aid use., Results: The decision aid was adopted by 72 of the 74 eligible gynecologists (97%) and reached 2553 patients across five settings. CollaboRATE scores improved among patients who reported receiving the decision aid (as-treated analysis, 69% vs. 59%; OR 1.6, 95% CI 1.16-2.27). CollaboRATE scores remained consistent before and after setting-level decision aid implementation (intention-to-treat analysis, 64% vs. 63%; OR 0.86, 95% CI 0.61-1.22). Participants would prefer to receive a decision aid at multiple time points (91.9% before the visit, 90.7% during the visit, 86.5% after the visit). Shared decision-making experiences did not improve when comparing pre vs. post-implementation collaboRATE scores across included settings (intention-to-treat, 64% vs. 63%; OR 0.86, 95% CI 0.61-1.22)., Conclusion: When patients with symptomatic uterine fibroids are given decision aids, they report higher shared decision-making scores. However, the differences we observed between the as-treated and intention-to-treat results suggest that unaddressed implementation challenges continue to limit the extent to which patients receive decision aids and likely hinder their overall impact. Future efforts to implement decision aids should explore enhancing their integration into clinical workflows and standard operating procedures, supported by organizational incentives that prioritize shared decision-making., Trial Registration: ClinicalTrials.gov NCT03985449; registered 6 June 2019., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
5. Continuous adaptation of conversation aids for uterine fibroids treatment options in a four-year multi-center implementation project.
- Author
-
Schubbe D, Durand MA, Forcino RC, Engel J, Tomaino M, Adams-Foster M, Bacon C, Mulligan CC, Venable S, Foster T, Barr PJ, Anchan RM, Laughlin-Tommaso S, Lindholm A, Seshan M, Gargiulo RM, Stephenson P, George K, Ajao M, Madden T, Banks E, Gargiulo AR, O'Malley J, van den Muijsenbergh M, Aarts JWM, and Elwyn G
- Subjects
- Humans, Female, Adult, Middle Aged, Focus Groups, Uterine Neoplasms therapy, Decision Making, Shared, Leiomyoma therapy
- Abstract
Background: Fibroids are non-cancerous uterine growths that can cause symptoms impacting quality of life. The breadth of treatment options allows for patient-centered preference. While conversation aids are known to facilitate shared decision making, the implementation of these aids for uterine fibroids treatments is limited. We aimed to develop two end-user-acceptable uterine fibroids conversation aids for an implementation project. Our second aim was to outline the adaptations that were made to the conversation aids as implementation occurred., Methods: We used a multi-phase user-centered participatory approach to develop a text-based and picture-enhanced conversation aid for uterine fibroids. We conducted a focus group with project stakeholders and user-testing interviews with eligible individuals with symptomatic uterine fibroids. We analyzed the results of the user-testing interviews using Morville's Honeycomb framework. Spanish translations of the conversation aids occurred in parallel with the English iterations. We documented the continuous adaptations of the conversation aids that occurred during the project using an expanded framework for reporting adaptations and modifications to evidence-based interventions (FRAME)., Results: The first iteration of the conversation aids was developed in December 2018. Focus group participants (n = 6) appreciated the brevity of the tools and suggested changes to the bar graphs and illustrations used in the picture-enhanced version. User-testing with interview participants (n = 9) found that both conversation aids were satisfactory, with minor changes suggested. However, during implementation, significant changes were suggested by patients, other stakeholders, and participating clinicians when they reviewed the content. The most significant changes required the addition or deletion of information about treatment options as newer research was published or as novel interventions were introduced into clinical practice., Conclusions: This multi-year project revealed the necessity of continuously adapting the uterine fibroids conversation aids so they remain acceptable in an implementation and sustainability context. Therefore, it is important to seek regular user feedback and plan for the need to undertake updates and revisions to conversation aids if they are going to be acceptable for clinical use., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
6. Targeting NGF but not VEGFR1 or BDNF signaling reduces endometriosis-associated pain in mice.
- Author
-
Zaninelli TH, Fattori V, Heintz OK, Wright KR, Bennallack PR, Sim D, Bukhari H, Terry KL, Vitonis AF, Missmer SA, Andrello AC, Anchan RM, Godin SK, Bree D, Verri WA Jr, and Rogers MS
- Abstract
Introduction: Endometriosis is a chronic inflammatory disease that affects ∼10 % of women. A significant fraction of patients experience limited or no efficacy with current therapies. Tissue adjacent to endometriosis lesions often exhibits increased neurite and vascular density, suggesting that disease pathology involves neurotrophic activity and angiogenesis., Objectives: We aim to evaluate the potential for key tyrosine-kinase-receptor-coupled neurotrophic molecules to contribute to endometriosis-associated pain in mice., Methods: Peritoneal fluid was collected from endometriosis patients undergoing surgery and the levels of NGF and VEGFR1 regulators (VEGFA, VEGFB, PLGF, and sVEGFR1) were quantified by ELISA. VEGFR1 regulator concentrations were used to calculate VEGFR1 occupancy. We used genetic depletion, neutralizing antibodies, and pharmacological approaches to specifically block neurotrophic ligands (NGF or BDNF) or receptors (VEGFR1, TRKs) in a murine model of endometriosis-associated pain. Endometriosis-associated pain was measured using von Frey filaments, quantification of spontaneous abdominal pain-related behavior, and thermal discomfort. Disease parameters were evaluated by lesion size and prevalence. To evaluate potential toxicity, we measured the effect of entrectinib dose and schedule on body weight, liver and kidney function, and bone structure (via micro-CT)., Results: We found that entrectinib (pan-Trk inhibitor) or anti-NGF treatments reduced evoked pain, spontaneous pain, and thermal discomfort. In contrast, even though calculated receptor occupancy revealed that VEGFR1 agonist levels are sufficient to support signaling, blocking VEGFR1 via antibody or tamoxifen-induced knockout did not reduce pain or lesion size in mice. Targeting BDNF-TrkB with an anti-BDNF antibody also proved ineffective. Notably, changing dosing schedule to once weekly eliminated entrectinib-induced bone-loss without decreasing efficacy against pain., Conclusions: This suggests NGF-TrkA signaling, but not BDNF-TrkB or VEGF-VEGFR1, mediates endometriosis-associated pain. Moreover, entrectinib blocks endometriosis-associated pain and reduces lesion sizes. Our results also indicated that entrectinib-like molecules are promising candidates for endometriosis treatment., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Production and hosting by Elsevier B.V.)
- Published
- 2024
- Full Text
- View/download PDF
7. Long-term health-related quality of life and symptom severity following hysterectomy, myomectomy, or uterine artery embolization for the treatment of symptomatic uterine fibroids.
- Author
-
Anchan RM, Spies JB, Zhang S, Wojdyla D, Bortoletto P, Terry K, Disler E, Milne A, Gargiulo A, Petrozza J, Brook O, Srouji S, Morton CC, Greenberg J, Wegienka G, Stewart EA, Nicholson WK, Thomas L, Venable S, Laughlin-Tommaso S, Diamond MP, Maxwell GL, Marsh EE, Myers ER, Vines AI, Wise LA, Wallace K, and Jacoby VL
- Subjects
- Humans, Female, Quality of Life, Prospective Studies, Hysterectomy, Treatment Outcome, Uterine Myomectomy methods, Uterine Artery Embolization, Uterine Neoplasms surgery, Leiomyoma surgery
- Abstract
Background: Few studies have directly compared different surgical procedures for uterine fibroids with respect to long-term health-related quality of life outcomes and symptom improvement., Objective: We examined differences in change from baseline to 1-, 2-, and 3-year follow-up in health-related quality of life and symptom severity among patients who underwent abdominal myomectomy, laparoscopic or robotic myomectomy, abdominal hysterectomy, laparoscopic or robotic hysterectomy, or uterine artery embolization., Study Design: The COMPARE-UF registry is a multiinstitutional prospective observational cohort study of women undergoing treatment for uterine fibroids. A subset of 1384 women aged 31 to 45 years who underwent either abdominal myomectomy (n=237), laparoscopic myomectomy (n=272), abdominal hysterectomy (n=177), laparoscopic hysterectomy (n=522), or uterine artery embolization (n=176) were included in this analysis. We obtained demographics, fibroid history, and symptoms by questionnaires at enrollment and at 1, 2, and 3 years posttreatment. We used the UFS-QoL (Uterine Fibroid Symptom and Quality of Life) questionnaire to ascertain symptom severity and health-related quality of life scores among participants. To account for potential baseline differences across treatment groups, a propensity score model was used to derive overlap weights and compare total health-related quality of life and symptom severity scores after enrollment with a repeated measures model. For this health-related quality of life tool, a specific minimal clinically important difference has not been determined, but on the basis of previous research, a difference of 10 points was considered as a reasonable estimate. Use of this difference was agreed upon by the Steering Committee at the time when the analysis was planned., Results: At baseline, women undergoing hysterectomy and uterine artery embolization reported the lowest health-related quality of life scores and highest symptom severity scores compared with those undergoing abdominal myomectomy or laparoscopic myomectomy (P<.001). Those undergoing hysterectomy and uterine artery embolization reported the longest duration of fibroid symptoms with a mean of 6.3 years (standard deviation, 6.7; P<.001). The most common fibroid symptoms were menorrhagia (75.3%), bulk symptoms (74.2%), and bloating (73.2%). More than half (54.9%) of participants reported anemia, and 9.4% women reported a history of blood transfusion. Across all modalities, total health-related quality of life and symptom severity score markedly improved from baseline to 1-year with the largest improvement in the laparoscopic hysterectomy group (Uterine Fibroids Symptom and Quality of Life: delta= [+] 49.2; symptom severity: delta= [-] 51.3). Those undergoing abdominal myomectomy, laparoscopic myomectomy, and uterine artery embolization also demonstrated significant improvement in health-related quality of life (delta= [+]43.9, [+]32.9, [+]40.7, respectively) and symptom severity (delta= [-]41.4, [-] 31.5, [-] 38.5, respectively) at 1 year, and the improvement persisted from baseline for uterine-sparing procedures during second (Uterine Fibroids Symptom and Quality of Life: delta= [+]40.7, [+]37.4, [+]39.3 SS: delta= [-] 38.5, [-] 32.0, [-] 37.7 and third year (Uterine Fibroids Symptom and Quality of Life: delta= [+] 40.9, [+]39.9, [+]41.1 and SS: delta= [-] 33.9, [-]36.5, [-] 33.0, respectively), posttreatment intervals, however with a trend toward decline in degree of improvement from years 1 and 2. Differences from baseline were greatest for hysterectomy; however, this may reflect the relative importance of bleeding in the Uterine Fibroids Symptom and Quality of Life, rather than clinically meaningful symptom recurrence among women undergoing uterus-sparing treatments., Conclusion: All treatment modalities were associated with significant improvements in health-related quality of life and symptom severity reduction 1-year posttreatment. However, abdominal myomectomy, laparoscopic myomectomy and uterine artery embolization indicated a gradual decline in symptom improvement and health-related quality of life by third year after the procedure., (Copyright © 2023. Published by Elsevier Inc.)
- Published
- 2023
- Full Text
- View/download PDF
8. Fertility restoration in mice with chemotherapy induced ovarian failure using differentiated iPSCs.
- Author
-
Elias KM, Ng NW, Dam KU, Milne A, Disler ER, Gockley A, Holub N, Seshan ML, Church GM, Ginsburg ES, and Anchan RM
- Subjects
- Humans, Female, Mice, Animals, Fertility, Alkylating Agents adverse effects, Alkylating Agents metabolism, Induced Pluripotent Stem Cells, Primary Ovarian Insufficiency chemically induced, Primary Ovarian Insufficiency therapy, Antineoplastic Agents adverse effects
- Abstract
Background: Treatment options for premature ovarian insufficiency (POI) are limited to hormone replacement and donor oocytes. A novel induced pluripotent stem cell (iPSC) transplant paradigm in a mouse model has potential translational applications for management of POI., Methods: Mouse ovarian granulosa cell derived-iPSCS were labelled with green fluorescent protein (GFP) reporter and differentiated in vitro into oocytes. Differentiated cells were assayed for estradiol and progesterone secretion by enzyme-linked immunosorbent assays. After Fluorescence-Activated Cell Sorting (FACS) for the cell surface marker anti-Mullerian hormone receptor (AMHR2), enriched populations of differentiated cells were surgically transplanted into ovaries of mice that had POI secondary to gonadotoxic pre-treatment with alkylating agents. A total of 100 mice were used in these studies in five separate experiments with 56 animals receiving orthotopic ovarian injections of either FACS sorted or unsorted differentiated iPSCSs and the remaining animals receiving sham injections of PBS diluent. Following transplantation surgery, mice were stimulated with gonadotropins inducing oocyte development and underwent oocyte retrieval. Nine transplanted mice were cross bred with wild-type mice to assess fertility. Lineage tracing of resultant oocytes, F1 (30 pups), and F2 (42 pups) litters was interrogated by GFP expression and validation by short tandem repeat (STR) lineage tracing., Findings: [1] iPSCs differentiate into functional oocytes and steroidogenic ovarian cells which [2] express an ovarian (GJA1) and germ cell (ZP1) markers. [3] Endocrine function and fertility were restored in mice pretreated with gonadotoxic alkylating agents via orthotopic transplantation of differentiated iPSCS, thus generating viable, fertile mouse pups., Interpretation: iPSC-derived ovarian tissue can reverse endocrine and reproductive sequelae of POI., Funding: Center for Infertility and Reproductive Surgery Research Award, Siezen Foundation award (RMA). Reproductive Scientist Development Program, Marriott Foundation, Saltonstall Foundation, Brigham Ovarian Cancer Research Fund (K.E)., Competing Interests: Declaration of interests G.M.C. declares contributing work to Gameto inc. (gametogen.com.) E.S.G. declares consulting work for teledochealth. All other authors declare no competing interests., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
9. A Comparative Analysis of Health-Related Quality of Life 1 Year Following Myomectomy or Uterine Artery Embolization: Findings from the COMPARE-UF Registry.
- Author
-
Anchan RM, Wojdyla D, Bortoletto P, Terry K, Disler E, Milne A, Gargiulo A, Petrozza J, Brook O, Srouji S, Morton CC, Greenberg J, Wegienka G, Stewart EA, Nicholson WK, Thomas L, Venable S, Laughlin-Tommaso S, Diamond MP, Maxwell GL, Marsh EE, Myers ER, Vines AI, Wise LA, Wallace K, Jacoby VL, and Spies JB
- Subjects
- Female, Humans, Hysterectomy, Prospective Studies, Registries, Treatment Outcome, Leiomyoma surgery, Quality of Life, Uterine Artery Embolization psychology, Uterine Myomectomy psychology, Uterine Neoplasms surgery
- Abstract
Objective: To compare 12-month post-treatment health-related quality of life (HR-QoL) and symptom severity (SS) changes among patients with symptomatic uterine fibroids (SUF) not seeking fertility and undergo a hysterectomy, abdominal myomectomy (AM), or uterine artery embolization (UAE). Materials and Methods: The Comparing Options for Management: Patient-Centered Results for Uterine Fibroids (COMPARE-UF) Registry is a multi-institutional prospective observational cohort study of patients treated for SUF. A subset of 1465 women 31-45 years of age, who underwent either hysterectomy ( n = 741), AM ( n = 446), or UAE ( n = 155) were included in this analysis. Demographics, fibroid history, and symptoms were obtained by baseline questionnaires and at 1 year post-treatment. Results were stratified by all treatments and propensity score weighting to adjust for differences in baseline characteristics. Results: Women undergoing UAE reported the lowest baseline HR-QoL and highest SS scores (mean = 40.6 [standard deviation (SD) = 23.8]; 62.3 [SD = 24.2]) followed by hysterectomy (44.3 [24.3]; 59.8 [SD = 24.1]). At 12 months, women who underwent a hysterectomy experienced the largest change in both HR-QoL (48.7 [26.2]) and SS (51.9 [25.6]) followed by other uterine-sparing treatments. Propensity score weighting revealed all treatments produced substantial improvement, with hysterectomy patients reporting the highest HR-QoL score (92.0 [17.8]) compared with myomectomy (86.7 [17.2]) and UAE (82.6 [21.5]) ( p < 0.0001). Similarly, hysterectomy patients reported the lowest SS scores (8.2 [15.1]) compared with myomectomy (16.5 [15.1]) and UAE (19.6 [17.5]) ( p < 0.0001). Conclusion: All procedures showed improvement in HR-QoL and reduction in SS score at 12 months, hysterectomy showing maximum improvement. Of importance, at 12 months, patients who underwent either a myomectomy or UAE reported comparable symptom relief and HR-QoL. Clinicaltrials.Gov Identifier: NCT02260752.
- Published
- 2023
- Full Text
- View/download PDF
10. Route of myomectomy and fertility: a prospective cohort study.
- Author
-
Wise LA, Thomas L, Anderson S, Baird DD, Anchan RM, Terry KL, Marsh EE, Wegienka G, Nicholson WK, Wallace K, Bigelow R, Spies J, Maxwell GL, Jacoby V, Myers ER, and Stewart EA
- Subjects
- Adult, Female, Fertility, Humans, Pregnancy, Prospective Studies, Leiomyoma surgery, Uterine Myomectomy adverse effects, Uterine Myomectomy methods, Uterine Neoplasms surgery
- Abstract
Objective: To assess prospectively the association between the myomectomy route and fertility., Design: Prospective cohort study., Setting: The Comparing Treatments Options for Uterine Fibroids (COMPARE-UF) Study is a multisite national registry of eight clinic centers across the United States., Patient(s): Reproductive-aged women undergoing surgery for symptomatic uterine fibroids., Intervention(s): Not applicable., Main Outcome Measure(s): We used life-table methods to estimate cumulative probabilities and 95% confidence intervals (CI) of pregnancy and live birth by the myomectomy route during 12, 24, and 36 months of follow-up (2015-2019). We also conducted 12-month interval-based analyses that used logistic regression to estimate odds ratios and 95% CIs for associations of interest. In all analyses, we used propensity score weighting to adjust for differences across surgical routes., Result(s): Among 1,095 women who underwent myomectomy (abdominal = 388, hysteroscopic = 273, and laparoscopic = 434), 202 reported pregnancy and 91 reported live birth during 36 months of follow-up. There was little difference in the 12-month probability of pregnancy or live birth by route of myomectomy overall or among women intending pregnancy. In interval-based analyses, adjusted ORs for pregnancy were 1.28 (95% CI, 0.76-2.14) for hysteroscopic myomectomy and 1.19 (95% CI, 0.76-1.85) for laparoscopic myomectomy compared with abdominal myomectomy. Among women intending pregnancy, adjusted ORs were 1.27 (95% CI, 0.72-2.23) for hysteroscopic myomectomy and 1.26 (95% CI, 0.77-2.04) for laparoscopic myomectomy compared with abdominal myomectomy. Associations were slightly stronger but less precise for live birth., Conclusion(s): The probability of conception or live birth did not differ appreciably by the myomectomy route among women observed for 36 months postoperatively., Clinical Trials Registration Number: (NCT02260752, clinicaltrials.gov)., (Copyright © 2022. Published by Elsevier Inc.)
- Published
- 2022
- Full Text
- View/download PDF
11. Anxiety, Depression, and Quality of Life After Procedural Intervention for Uterine Fibroids.
- Author
-
Wallace K, Stewart EA, Wise LA, Nicholson WK, Parry JP, Zhang S, Laughlin-Tommaso S, Jacoby V, Anchan RM, Diamond MP, Venable S, Shiflett A, Wegienka GR, Maxwell GL, Wojdyla D, Myers ER, and Marsh E
- Subjects
- Anxiety epidemiology, Depression epidemiology, Female, Humans, Quality of Life, Surveys and Questionnaires, Leiomyoma complications, Leiomyoma epidemiology, Leiomyoma surgery, Uterine Neoplasms complications, Uterine Neoplasms epidemiology, Uterine Neoplasms surgery
- Abstract
Background: Quality of life (QOL) and psychological health has been reported to be decreased among women with gynecological conditions such as uterine fibroids (UFs). Materials and Methods: Women enrolled in the Comparing Options for Management: PAtient-centered REsults for Uterine Fibroids (COMPARE-UF) registry, receiving procedural therapy for symptomatic UFs, were eligible for this analysis if they completed a series of health-related QOL surveys administered at three time points (baseline, 6-12 weeks postprocedure, and 1 year postprocedure; n = 1486). Ethical approval for this study was obtained at each recruiting site and the coordinating center (NCT02260752, clinicaltrials.gov). Results: More than 26% ( n = 393) of women reported moderate anxiety/depression on the baseline anxiety/depression domain of the Euro-QOL 5-dimension instrument. At both the 6-12 weeks and 1-year postprocedural follow-up, there was significant improvement in the UF QOL symptom severity score ( p < 0.001, p < 0.001), the total UF symptom QOL score ( p < 0.001, p < 0.001), and the Euro-QOL 5-dimension visual analog scale ( p < 0.001, p = 0.004) compared with the preprocedural baseline scores. The reporting of anxiety/depression decreased by 66.4% among women who were at baseline, whereas 5.6% of women previously reporting no anxiety/depression reported anxiety/depression at the 1-year follow-up. Conclusion: UF symptoms were more severe among women reporting anxiety/depression at baseline. At the 1-year follow-up, health-related QOL scores improved among all women and the prevalence of anxiety/depression decreased in most, but not all women, whereas severity of anxiety/depression worsened in a small percentage of women (5.6%). Overall, these results suggest that UF treatment improves symptoms of anxiety/depression associated with symptomatic UFs.
- Published
- 2022
- Full Text
- View/download PDF
12. Black Women Are More Likely Than White Women to Schedule a Uterine-Sparing Treatment for Leiomyomas.
- Author
-
Wegienka G, Stewart EA, Nicholson WK, Zhang S, Li F, Thomas L, Spies JB, Venable S, Laughlin-Tommaso S, Diamond MP, Anchan RM, Maxwell GL, Marsh EE, Myers ER, Vines AI, Wise LA, Wallace K, and Jacoby VL
- Subjects
- Adolescent, Adult, Black or African American, Female, Humans, Hysterectomy, Middle Aged, Quality of Life, Young Adult, Leiomyoma surgery, Uterine Myomectomy, Uterine Neoplasms surgery
- Abstract
Background: To evaluate differences in the proportion of uterine fibroid (UF) treatments that are uterine-sparing between Black women and White women and identify factors that could explain disparities. Methods: Women at age 18-54 years who were enrolled from 10 clinical sites in the United States into the Comparing Options for Management: Patient-Centered Results for UFs (COMPARE-UF) treatment registry completed questionnaires before their UF procedure. UF symptoms and quality of life were assessed by questionnaires. Details on UF imaging and treatment (hysterectomy, myomectomy, or uterine artery embolization [UAE]) were collected from each patient's medical record. Random-effects logistic regression was used to assess the association between race and the odds of having a uterine-sparing procedure versus hysterectomy. Subgroup analyses compared each uterine-sparing procedure with hysterectomy. Results: In this cohort of 1141 White women and 1196 Black women, Black women tended to be younger (median 41.0 vs. 42.0 years) and report worse symptoms, pain, and function on every scale compared with White women. Black women were more likely to have had a prior UF treatment compared with White women (22.8% vs. 14.6%). White women had more hysterectomies (43.6% vs. 32.2%) and myomectomies (50.9% vs. 50.2%) versus Black women. Black women had more UAEs (15.1% vs. 4.7%) than White women. After adjusting for clinical site and other variables, Black women had greater odds than White women of having a myomectomy (odds ratio [OR] = 2.41, 95% confidence interval [CI] = 1.63-3.56) or a UAE versus hysterectomy (OR = 4.24, 95% CI = 2.41-7.46). Conclusion: In these participants, Black women were more likely to schedule a uterine-sparing UF treatment and a nonsurgical UF treatment than their White counterparts; this may not be true for all women. Longer comparative effectiveness studies are needed to inform women about the durability of UF treatments. Greater understanding of factors influencing treatment selection is needed as are studies that include women without access to tertiary care centers. Clinical Trial Registration: Clinicaltrials.gov, NCT02260752 (enrollment start: November 2015).
- Published
- 2021
- Full Text
- View/download PDF
13. Short-term quality of life after myomectomy for uterine fibroids from the COMPARE-UF Fibroid Registry.
- Author
-
Laughlin-Tommaso SK, Lu D, Thomas L, Diamond MP, Wallace K, Wegienka G, Vines AI, Anchan RM, Wang T, Maxwell GL, Jacoby V, Marsh EE, Spies JB, Nicholson WK, Stewart EA, and Myers ER
- Subjects
- Adult, Anxiety etiology, Female, Humans, Hysteroscopy adverse effects, Hysteroscopy psychology, Laparoscopy adverse effects, Laparoscopy psychology, Middle Aged, Pain, Postoperative etiology, Postoperative Period, Registries, Return to Work statistics & numerical data, Robotic Surgical Procedures adverse effects, Robotic Surgical Procedures psychology, Severity of Illness Index, Surveys and Questionnaires, Time Factors, Uterine Myomectomy adverse effects, Uterine Myomectomy psychology, Leiomyoma surgery, Quality of Life psychology, Uterine Myomectomy methods, Uterine Neoplasms surgery
- Abstract
Background: Uterine fibroids may decrease quality of life in a significant proportion of affected women. Myomectomy offers a uterine-sparing treatment option for patients with uterine fibroids that can be performed abdominally, laparoscopically (with or without robotic assistance), and hysteroscopically. Quality of life information using validated measures for different myomectomy routes, especially hysteroscopic myomectomy, is limited., Objective: To compare women's perception of their short-term health-related quality of life measures and reported time to return to usual activities and return to work for different routes of myomectomy., Materials and Methods: Comparing Options for Management: Patient-centered Results for Uterine Fibroids (COMPARE-UF) is a prospective nationwide fibroid registry that enrolled premenopausal women seeking treatment for uterine fibroids at 8 clinical sites. For this analysis, we included women undergoing hysteroscopic, abdominal, or laparoscopic myomectomy who completed the postprocedure questionnaire scheduled between 6 and 12 weeks after surgery. Health-related quality of life outcomes, such as pain, anxiety, and return to usual activitie, were assessed for each route. The hysteroscopic myomectomy group had large differences in demographics, fibroid number, and uterine size compared to the other groups; thus, a direct comparison of quality of life measures was performed only for abdominal and laparoscopic approaches after propensity weighting. Propensity weighting was done using 24 variables that included demographics, quality of life baseline measures, and fibroid and uterine measurements., Results: A total of 1206 women from 8 COMPARE-UF sites underwent myomectomy (338 hysteroscopic, 519 laparoscopic, and 349 abdominal). All women had substantial improvement in short-term health-related quality of life and symptom severity scores, which was not different among groups. Average symptom severity scores decreased about 30 points in each group. Return to usual activities averaged 0 days (interquartile range, 0-14 days) for hysteroscopic myomectomy, 21 days (interquartile range, 14-28 days) for laparoscopic myomectomy, and 28 days (interquartile range, 14-35 days) for abdominal myomectomy. After propensity adjustment, quality of life outcomes in the laparoscopic and abdominal myomectomy groups were similar except for more anxiety in the laparoscopic myomectomy group and slightly more pain in the abdominal myomectomy group. After propensity weighting, return to usual activities favored laparoscopic compared to abdominal procedures; median time was the same at 21 days, but the highest quartile of women in the abdominal group needed an additional week of recovery (interquartile range,14.0-28.0 for laparoscopic versus 14.0-35.0 for abdominal, P < .01). Time to return to work was also longer in the abdominal arm (median, 22 days; interquartile range, 14-40 days, versus median, 42; interquartile range, 27-56)., Conclusion: Women who underwent myomectomy had substantial improvement in health-related quality of life, regardless of route of myomectomy. After propensity weighting, abdominal myomectomy was associated with a nearly 2-week longer time to return to work than laparoscopic myomectomy., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
14. Comparative effectiveness of hysterectomy versus myomectomy on one-year health-related quality of life in women with uterine fibroids.
- Author
-
Wallace K, Zhang S, Thomas L, Stewart EA, Nicholson WK, Wegienka GR, Wise LA, Laughlin-Tommaso SK, Diamond MP, Marsh EE, Jacoby VL, Anchan RM, Venable S, Larry GM, Lytle B, Wang T, and Myers ER
- Subjects
- Adult, Cohort Studies, Comparative Effectiveness Research, Female, Follow-Up Studies, Humans, Leiomyoma epidemiology, Leiomyoma psychology, Middle Aged, Pregnancy, Prospective Studies, Surveys and Questionnaires, Treatment Outcome, Uterine Artery Embolization adverse effects, Uterine Artery Embolization rehabilitation, Uterine Artery Embolization statistics & numerical data, Uterine Neoplasms epidemiology, Uterine Neoplasms psychology, Hysterectomy adverse effects, Hysterectomy rehabilitation, Hysterectomy statistics & numerical data, Leiomyoma surgery, Quality of Life, Uterine Myomectomy adverse effects, Uterine Myomectomy rehabilitation, Uterine Myomectomy statistics & numerical data, Uterine Neoplasms surgery
- Abstract
Objective: To compare long-term health-related quality of life (HRQOL) 1 year after hysterectomy or myomectomy for treatment of uterine fibroids (UFs) and to determine whether route of procedure, race, or age affected improvements in HRQOL., Design: Prospective cohort study., Setting: Eight clinical sites throughout the United States., Patient(s): A total of 1,113 premenopausal women with UFs who underwent hysterectomy or myomectomy as part of Comparing Options for Management: Patient-Centered Results for Uterine Fibroids., Intervention(s): None., Main Outcome Measure (s): Self-reported HRQOL measures including Uterine Fibroid Symptom Quality of Life, the European QOL 5 Dimension Health Questionnaire, and the visual analog scale at baseline and 1-year after hysterectomy or myomectomy., Result (s): Hysterectomy patients were older with a longer history of symptomatic UF compared with myomectomy patients. There were no differences in baseline HRQOL. After adjustment for baseline differences between groups, compared with myomectomy, patients' HRQOL (95% confidence interval [CI], 5.4, 17.2) and symptom severity (95% CI, -16.3, -8.8) were significantly improved with hysterectomy. When stratified across race/ethnicity and age, hysterectomy had higher HRQOL scores compared with myomectomy. There was little difference in HRQOL (95% CI, 0.1 [-9.5, 9.6]) or symptom severity (95% CI, -3.4 [-10, 3.2]) between abdominal hysterectomy and abdominal myomectomy., Conclusion (s): HRQOL improved in all women 1 year after hysterectomy or myomectomy. Hysterectomy patients reported higher HRQOL summary scores compared with myomectomy patients. When stratified by route, minimally invasive hysterectomy had better HRQOL scores than minimally invasive myomectomy. There was little difference in scores with abdominal approaches., (Copyright © 2020 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
15. Implementation of the uterine fibroids Option Grid patient decision aids across five organizational settings: a randomized stepped-wedge study protocol.
- Author
-
Scalia P, Durand MA, Forcino RC, Schubbe D, Barr PJ, O'Brien N, O'Malley AJ, Foster T, Politi MC, Laughlin-Tommaso S, Banks E, Madden T, Anchan RM, Aarts JWM, Velentgas P, Balls-Berry J, Bacon C, Adams-Foster M, Mulligan CC, Venable S, Cochran NE, and Elwyn G
- Subjects
- Adolescent, Adult, Communication, Cultural Characteristics, Decision Making, Female, Health Knowledge, Attitudes, Practice, Humans, Middle Aged, Self Efficacy, Young Adult, Randomized Controlled Trials as Topic, Decision Support Techniques, Leiomyoma therapy, Patient Participation methods, Patient Preference
- Abstract
Background: Uterine fibroids are non-cancerous overgrowths of the smooth muscle in the uterus. As they grow, some cause problems such as heavy menstrual bleeding, pelvic pain, discomfort during sexual intercourse, and rarely pregnancy complications or difficulty becoming pregnant. Multiple treatment options are available. The lack of comparative evidence demonstrating superiority of any one treatment means that choosing the best option is sensitive to individual preferences. Women with fibroids wish to consider treatment trade-offs. Tools known as patient decision aids (PDAs) are effective in increasing patient engagement in the decision-making process. However, the implementation of PDAs in routine care remains challenging. Our aim is to use a multi-component implementation strategy to implement the uterine fibroids Option Grid™ PDAs at five organizational settings in the USA., Methods: We will conduct a randomized stepped-wedge implementation study where five sites will be randomized to implement the uterine fibroid Option Grid PDA in practice at different time points. Implementation will be guided by the Consolidated Framework for Implementation Research (CFIR) and Normalization Process Theory (NPT). There will be a 6-month pre-implementation phase, a 2-month initiation phase where participating clinicians will receive training and be introduced to the Option Grid PDAs (available in text, picture, or online formats), and a 6-month active implementation phase where clinicians will be expected to use the PDAs with patients who are assigned female sex at birth, are at least 18 years of age, speak fluent English or Spanish, and have new or recurrent symptoms of uterine fibroids. We will exclude postmenopausal patients. Our primary outcome measure is the number of eligible patients who receive the Option Grid PDAs. We will use logistic and linear regression analyses to compare binary and continuous quantitative outcome measures (including survey scores and Option Grid use) between the pre- and active implementation phases while adjusting for patient and clinician characteristics., Discussion: This study may help identify the factors that impact the implementation and sustained use of a PDA in clinic workflow from various stakeholder perspectives while helping patients with uterine fibroids make treatment decisions that align with their preferences., Trial Registration: Clinicaltrials.gov , NCT03985449. Registered 13 July 2019, https://clinicaltrials.gov/ct2/show/NCT03985449.
- Published
- 2019
- Full Text
- View/download PDF
16. Short-Term Health-Related Quality of Life After Hysterectomy Compared With Myomectomy for Symptomatic Leiomyomas.
- Author
-
Nicholson WK, Wegienka G, Zhang S, Wallace K, Stewart E, Laughlin-Tommaso S, Thomas L, Jacoby VL, Marsh EE, Wise L, Borah BJ, Spies J, Venable S, Anchan RM, Larry Maxwell G, Diamond M, Lytle B, and Myers ER
- Subjects
- Adult, Female, Humans, Middle Aged, Minimally Invasive Surgical Procedures, Postoperative Period, Prospective Studies, Surveys and Questionnaires, Hysterectomy statistics & numerical data, Leiomyoma surgery, Quality of Life, Uterine Myomectomy statistics & numerical data, Uterine Neoplasms surgery
- Abstract
Objective: To compare short-term health-related quality of life (HRQOL) 6-12 weeks after hysterectomy or myomectomy for the treatment of symptomatic leiomyomas., Methods: We conducted a prospective comparative effectiveness analysis of data. In an existing multisite registry, we compared 6-12-week postsurgical HRQOL using the disease-specific Uterine Fibroid Symptom Quality of Life and the generic EuroQoL 5-Dimension Health Questionnaire, in women from the ages of 18-54 years with documented leiomyomas undergoing hysterectomy or myomectomy. Propensity score weighting was used to adjust for confounding, and analyses were also stratified by route of surgery., Results: A total of 1,295 patients (727 with hysterectomy and 568 with myomectomy) enrolled from registry initiation in November 2015 until June 2018 met inclusion criteria. At baseline, leiomyoma-specific HRQOL (44.0±25.4 and 50.2±25.3, P<.01), symptom severity (60.7±23.6 and 51.7±24.6, P<.01), and generic HRQOL (69.3±20.4 and. 73.4±18.9, P<.01) were significantly different between the hysterectomy compared with myomectomy groups, respectively. Differences were eliminated by propensity adjustment. Substantial improvement in HRQOL measures were seen in both groups at 6-12 weeks, with the mean propensity-adjusted symptom severity score 4 points lower in hysterectomy patients (mean difference -4.6; 95% CI -7.0 to -2.3), compared with myomectomy patients. Hysterectomy patients had better scores on the concern and self-consciousness subscales compared with myomectomy patients. When stratified by surgical route, these two subscale findings were similar between minimally invasive hysterectomy and minimally invasive myomectomy. Symptom severity scores did not differ after abdominal myomectomy compared with abdominal hysterectomy, but subscale scores on activity and energy/mood were higher with myomectomy., Conclusion: Both hysterectomy and myomectomy were associated with substantial improvement in HRQOL at short-term follow-up, with small but statistically significant differences in symptom severity and certain subscales., Clinical Trial Registration: ClinicalTrials.gov, NCT02260752.
- Published
- 2019
- Full Text
- View/download PDF
17. Opioid dispensing patterns after oocyte retrieval.
- Author
-
Bortoletto P, Prabhu M, Garry EM, Huybrechts KF, Anchan RM, and Bateman BT
- Subjects
- Adolescent, Adult, Cohort Studies, Female, Humans, Infertility, Female epidemiology, Infertility, Female psychology, Infertility, Female therapy, Middle Aged, Oocyte Retrieval adverse effects, Oocyte Retrieval psychology, Pain, Postoperative epidemiology, Pain, Postoperative psychology, Retrospective Studies, Young Adult, Analgesics, Opioid administration & dosage, Drug Prescriptions standards, Oocyte Retrieval trends, Pain, Postoperative drug therapy
- Abstract
Objective: To study opioid dispensing patterns following oocyte retrieval., Design: Retrospective cohort., Setting: Not applicable., Patient(s): Women undergoing oocyte retrieval with a maximum of 1 opioid prescription in the 12 weeks prior to the procedure, without an opioid use or other substance use disorder., Intervention(s): None., Main Outcome Measure(s): We measured the frequency of opioids dispensed within 3 days of oocyte retrieval, most common opioids dispensed; and quantity dispensed, in median (interquartile range [IQR] and 10th-90th percentile ranges) oral morphine milligram equivalents (MME). Multivariate regression analyses were used to calculate odds ratios and 95% confidence intervals (CI) to examine the association between patient characteristics and the occurrence of an opioid dispensing., Result(s): In total, 61,463 women with an oocyte retrieval met the criteria for analysis. After oocyte retrieval, 11.9% were dispensed an opioid, most commonly hydrocodone (48.5%), codeine (23.0%), and oxycodone (17.7%). The median (IQR; 10th-90th percentile) oral MME dose dispensed after retrieval was 90 (50-125; 50-207). Women with mood disorders (adjusted odds ratio [aOR] 1.17, 95% CI 1.00-1.36), tobacco use (aOR 1.67, 95% CI 1.18-2.37), or anti-depressant use (aOR 1.62, 95% CI 1.47-1.80) were more likely to fill an opioid prescription, compared to those without these diagnoses., Conclusion(s): Although only a small proportion of women fill a prescription for opioids after oocyte retrieval, there is substantial variation in the amount dispensed. Patients with a concurrent mood disorder or those taking anti-depressants were more likely to fill an opioid prescription., (Copyright © 2018 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
18. The Comparing Options for Management: PAtient-centered REsults for Uterine Fibroids (COMPARE-UF) registry: rationale and design.
- Author
-
Stewart EA, Lytle BL, Thomas L, Wegienka GR, Jacoby V, Diamond MP, Nicholson WK, Anchan RM, Venable S, Wallace K, Marsh EE, Maxwell GL, Borah BJ, Catherino WH, and Myers ER
- Subjects
- Adolescent, Adult, Endometrial Ablation Techniques, Female, High-Intensity Focused Ultrasound Ablation, Humans, Hysterectomy, Intrauterine Devices, Medicated, Magnetic Resonance Imaging, Middle Aged, Progestins administration & dosage, Quality of Life, Radiofrequency Ablation, Surgery, Computer-Assisted, Treatment Outcome, Uterine Artery Embolization, Uterine Myomectomy, Young Adult, Leiomyoma therapy, Patient Outcome Assessment, Registries, Uterine Neoplasms therapy
- Abstract
Background: Uterine fibroids are common in premenopausal women, yet comparative effectiveness research on uterine fibroid treatments is rare., Objective: The purpose of this study was to design and establish a uterine fibroid registry based in the United States to provide comparative effectiveness data regarding uterine fibroid treatment., Study Design: We report here the design and initial recruitment for the Comparing Options for Management: Patient-centered REsults for Uterine Fibroids (COMPARE-UF) registry (Clinicaltrials.gov, NCT02260752), funded by the Agency for Healthcare Research and Quality in collaboration with the Patient-Centered Outcomes Research Institute. COMPARE-UF was designed to help answer critical questions about treatment options for women with symptomatic uterine fibroids. Women who undergo a procedure for uterine fibroids (hysterectomy, myomectomy [abdominal, hysteroscopic, vaginal, and laparoscopic/robotic], endometrial ablation, radiofrequency fibroid ablation, uterine artery embolization, magnetic resonance-guided focused ultrasound, or progestin-releasing intrauterine device insertion) at 1 of the COMPARE-UF sites are invited to participate in a prospective registry with 3 years follow up for postprocedural outcomes. Enrolled participants provide annual follow-up evaluation through an online portal or through traditional phone contact. A central data abstraction center provides information obtained from imaging, operative or procedural notes, and pathology reports. Women with uterine fibroids and other stakeholders are a key part of the COMPARE-UF registry and participate at all points from study design to dissemination of results., Results: We built a network of 9 clinical sites across the United States with expertise in the care of women with uterine fibroids to capture geographic, racial, ethnic, and procedural diversity. Of the initial 2031 women who were enrolled in COMPARE-UF, 42% are self-identified as black or African American, and 40% are ≤40 years old, with 16% of participants <35 years old. Women who undergo myomectomy comprise the largest treatment group at 46% of all procedures, with laparoscopic or robotic myomectomy comprising the largest subset of myomectomies at 19% of all procedures. Hysterectomy is the second most common treatment within the registry at 38%., Conclusion: In response to priorities that were identified by our patient stakeholders, the initial aims within COMPARE-UF will address how different procedures that are used to treat uterine fibroids compare in terms of long-lasting symptom relief, potential for recurrence, medical complications, improvement in quality of life and sexual function, age at menopause, and fertility and pregnancy outcomes. COMPARE-UF will generate evidence on the comparative effectiveness of different procedural options for uterine fibroids and help patients and their caregivers make informed decisions that best meet an individual patient's short- and long-term preferences. Building on this infrastructure, the COMPARE-UF team of investigators and stakeholders, including patients, collaborate to identify future priorities for expanding the registry, such as assessing the efficacy of medical therapies for uterine fibroids. COMPARE-UF results will be disseminated directly to patients, providers, and other stakeholders by traditional academic pathways and by innovative methods that include a variety of social media platforms. Given demographic differences among women who undergo different uterine fibroid treatments, the assessment of comparative effectiveness for this disease through clinical trials will remain difficult. Therefore, this registry provides optimized evidence to help patients and their providers better understand the pros and cons of different treatment options so that they can make more informed decisions., (Copyright © 2018. Published by Elsevier Inc.)
- Published
- 2018
- Full Text
- View/download PDF
19. An Embryonic and Induced Pluripotent Stem Cell Model for Ovarian Granulosa Cell Development and Steroidogenesis.
- Author
-
Lipskind S, Lindsey JS, Gerami-Naini B, Eaton JL, O'Connell D, Kiezun A, Ho JWK, Ng N, Parasar P, Ng M, Nickerson M, Demirci U, Maas R, and Anchan RM
- Subjects
- Animals, Embryoid Bodies metabolism, Embryonic Stem Cells metabolism, Embryonic Stem Cells physiology, Female, Gene Expression, Granulosa Cells metabolism, Humans, Induced Pluripotent Stem Cells metabolism, Mice, Embryoid Bodies physiology, Granulosa Cells physiology, Induced Pluripotent Stem Cells physiology, Steroids biosynthesis
- Abstract
Embryoid bodies (EBs) can serve as a system for evaluating pluripotency, cellular differentiation, and tissue morphogenesis. In this study, we use EBs derived from mouse embryonic stem cells (mESCs) and human amniocyte-derived induced pluripotent stem cells (hAdiPSCs) as a model for ovarian granulosa cell (GC) development and steroidogenic cell commitment. We demonstrated that spontaneously differentiated murine EBs (mEBs) and human EBs (hEBs) displayed ovarian GC markers, such as aromatase (CYP19A1), FOXL2, AMHR2, FSHR, and GJA1. Comparative microarray analysis identified both shared and unique gene expression between mEBs and the maturing mouse ovary. Gene sets related to gonadogenesis, lipid metabolism, and ovarian development were significantly overrepresented in EBs. Of the 29 genes, 15 that were differentially regulated in steroidogenic mEBs displayed temporal expression changes between embryonic, postnatal, and mature ovarian tissues by polymerase chain reaction. Importantly, both mEBs and hEBs were capable of gonadotropin-responsive estradiol (E2) synthesis in vitro (217-759 pg/mL). Live fluorescence-activated cell sorting-sorted AMHR2
+ granulosa-like cells from mEBs continued to produce E2 after purification (15.3 pg/mL) and secreted significantly more E2 than AMHR2- cells (8.6 pg/mL, P < .05). We conclude that spontaneously differentiated EBs of both mESC and hAdiPSC origin can serve as a biologically relevant model for ovarian GC differentiation and steroidogenic cell commitment. These cells should be further investigated for therapeutic uses, such as stem cell-based hormone replacement therapy and in vitro maturation of oocytes.- Published
- 2018
- Full Text
- View/download PDF
20. Clinical, pathologic, cytogenetic, and molecular profiling in self-identified black women with uterine leiomyomata.
- Author
-
Hayden MA, Ordulu Z, Gallagher CS, Quade BJ, Anchan RM, Middleton NR, Srouji SS, Stewart EA, and Morton CC
- Subjects
- Adult, Black or African American psychology, Boston epidemiology, Female, Humans, Hysterectomy, Karyotyping, Leiomyoma epidemiology, Leiomyoma surgery, Middle Aged, Mutation, Prevalence, Self Disclosure, Uterine Neoplasms epidemiology, Uterine Neoplasms surgery, Black or African American genetics, Gene Expression Profiling, Leiomyoma genetics, Leiomyoma pathology, Mediator Complex genetics, Uterine Neoplasms genetics, Uterine Neoplasms pathology
- Abstract
Black women are disproportionately affected by uterine leiomyomata (UL), or fibroids, compared to other racial groups, having a greater lifetime risk of developing UL and an earlier age of diagnosis. In order to elucidate molecular and genetic mechanisms responsible for the increased prevalence and morbidity associated with UL in black women, clinical, pathologic, cytogenetic, and select molecular profiling (MED12 mutation analysis) of 75 self-reported black women undergoing surgical treatment for UL was performed. Our observations are broadly representative of previous cytogenetic studies of UL: karyotypically abnormal tumors were detected in 30.7% of women and 17.4% of analyzed tumors. No notable association was observed between race and increased occurrence of cytogenetic abnormalities that might contribute to any population-specific morbidity or prevalence rate. Our data on MED12 mutation analyses (73.2% of tumors harbored a MED12 mutation) provide additional support for a significant role of MED12 in tumorigenesis. Although the effect of MED12-mediated tumorigenesis appears significant irrespective of race, other genetic events such as the distribution of karyotypic abnormalities appear differently in black women. This case series indicates that presently recognized genetic and molecular characteristics of UL do not appear to explain the increased prevalence and morbidity of UL in black women., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
21. Pelvic and pulmonary benign metastasizing leiomyoma: A case report.
- Author
-
Bakkensen JB, Samore W, Bortoletto P, Morton CC, and Anchan RM
- Abstract
Seven years after she had a total abdominal hysterectomy for benign leiomyomas, a 46-year-old woman presented with a pelvic mass and multiple pulmonary nodules. She underwent resection of the mass and core needle biopsy of a pulmonary lesion. Histopathologic analysis revealed that both the pelvic and the pulmonary lesions were consistent with benign leiomyomas. Benign metastasizing leiomyoma should be considered if a woman of reproductive age and with a history of leiomyomas presents with extrauterine nodules without evidence of malignancy. The final diagnosis should be based on histopathological examination. Treatment depends on tumor size, location, receptor positivity, and disease progression.
- Published
- 2018
- Full Text
- View/download PDF
22. Embryo transfer: timing and techniques.
- Author
-
Bortoletto P, Bakkensen J, and Anchan RM
- Subjects
- Adult, Blastocyst, Female, Fertilization in Vitro, Humans, Male, Pregnancy, Time Factors, Embryo Transfer methods
- Abstract
Since the first successful human in vitro fertilization (IVF) pregnancy nearly 40 years ago, remarkable progress has been made in assisted reproductive technology (ART). Improvements in oocyte retrieval, embryo culture, genetic screening, and embryo selection have contributed to dramatic improvements in IVF outcomes. A more robust understanding of embryologic development has driven innovation in not only the timing of embryo transfer but also the number of embryos to transfer. Additionally, overcoming the technical hurdle of embryo vitrification has given both physicians and patients several benefits including the flexibility to mitigate effects of superovulation on the endometrium, limit the number of embryos transferred, afforded an opportunity to screen the quality of embryos both by evaluating in vitro development as well as preimplantation genetic testing. Within this review, we highlight in a stepwise fashion the considerations for embryo transfer timing and technique that physicians and patients alike must consider when undergoing an IVF cycle.
- Published
- 2018
- Full Text
- View/download PDF
23. Gestational carrier in assisted reproductive technology.
- Author
-
Murugappan G, Farland LV, Missmer SA, Correia KF, Anchan RM, and Ginsburg ES
- Subjects
- Adult, Cryopreservation, Embryo Implantation, Female, Fertility, Humans, Infertility, Female diagnosis, Infertility, Female physiopathology, Linear Models, Live Birth, Logistic Models, Male, Odds Ratio, Pregnancy, Pregnancy Rate, Pregnancy, Multiple, Retrospective Studies, Risk Factors, Treatment Outcome, Embryo Transfer adverse effects, Fertilization in Vitro adverse effects, Infertility, Female therapy, Surrogate Mothers
- Abstract
Objective: To compare clinical outcomes of in vitro fertilization (IVF) cycles with the use of gestational carriers (GCs) with non-GC IVF cycles., Design: Retrospective cohort study of assisted reproductive technology (ART) cycles performed with (24,269) and without (1,313,452) the use of a GC., Setting: ART centers., Patient(s): Infertile patients seeking IVF with or without use of a GC., Interventions(s): Autologous and donor oocyte cycles, fresh and cryopreserved embryo transfer cycles., Main Outcome Measure(s): Live birth rate (LBR), twin and high-order multiple birth rates., Result(s): Approximately 2% of embryo transfers used a GC. Per embryo transfer, GCs had greater pregnancy rate and LBR across all IVF types compared with non-GC cycles in crude models and models adjusted a priori for potential confounders. For women with uterine-factor infertility, embryo transfer with the use of a GC resulted in a higher odds of live birth for autologous fresh embryos and for cryopreserved embryos compared with patients with non-uterine-factor infertility diagnoses., Conclusion(s): GC benefits LBRs for some patients seeking ART. The highest LBRs occurred when the indication for GC was uterine-factor infertility., (Copyright © 2017 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
24. Bio-inspired solute enables preservation of human oocytes using minimum volume vitrification.
- Author
-
Choi JK, El Assal R, Ng N, Ginsburg E, Maas RL, Anchan RM, and Demirci U
- Subjects
- Animals, Cell Survival, Embryonic Development, Female, Humans, Mice, Inbred C57BL, Oocytes cytology, Parthenogenesis, Biomimetics methods, Cryopreservation, Vitrification
- Abstract
The ability to cryopreserve human oocytes has significant potential for fertility preservation. Current cryopreservation methods still suffer from the use of conventional cryoprotectants, such as dimethyl sulphoxide (DMSO), causing loss of viability and function. Such injuries result from the toxicity and high concentration of cryoprotectants, as well as mechanical damage of cells due to ice crystal formation during the cooling and rewarming processes. Here we report the preservation of human oocytes following vitrification using an innovative bio-inspired cryoprotectant integrated with a minimum volume vitrification approach. The results demonstrate that the recovered human oocytes maintained viability following vitrification and rewarming. Moreover, when this approach was used to vitrify mouse oocytes, the recovered oocytes preserved their viability and function following vitrification and rewarming. This bio-inspired approach substitutes DMSO, a well-known toxic cryoprotectant, with ectoine, a non-toxic naturally occurring solute. The bio-inspired vitrification approach has the potential to improve fertility preservation for women undergoing cancer treatment and endangered mammal species., (Copyright © 2017 John Wiley & Sons, Ltd.)
- Published
- 2018
- Full Text
- View/download PDF
25. Induced Pluripotent Stem Cells from Ovarian Tissue.
- Author
-
Salas S, Ng N, Gerami-Naini B, and Anchan RM
- Subjects
- Animals, Biomarkers, Cell Culture Techniques, Cell Line, Cell Separation methods, Cell Transformation, Neoplastic, Female, Genetic Vectors genetics, Granulosa Cells cytology, Humans, Immunohistochemistry, Lentivirus genetics, Phenotype, Polymerase Chain Reaction, Retroviridae genetics, Sendai virus genetics, Teratoma etiology, Teratoma pathology, Transduction, Genetic, Induced Pluripotent Stem Cells cytology, Ovary cytology
- Abstract
Yamanaka and colleagues revolutionized stem cell biology and regenerative medicine by observing that somatic cells can be reprogrammed into pluripotent stem cells. Evidence indicates that induced pluripotent stem (iPS) cells retain epigenetic memories that bias their spontaneous differentiation into the originating somatic cell type, therefore epigenetic memory may be exploited to improve tissue specific regeneration. We recently showed that iPS cells reprogrammed from ovarian granulosa cells using mouse and human tissue overwhelmingly differentiate homotypically into ovarian steroidogenic and primordial germ cells. Herein we detail a protocol for the culture of human ovarian granulosa cells. We review approaches for reprogramming human ovarian granulosa cells into iPS cells. Standard methods to induce pluripotency are outlined, concentrating on integrative retroviruses. Additionally, alternative protocols for lentivirus and Sendai virus are provided. Each approach has inherent limitations, such as reprogramming efficiency, insertional mutagenesis, and partial reprogramming. Major advances continue to be made in somatic cell reprogramming to identify an optimal approach and utilization in cell-based therapies. © 2017 by John Wiley & Sons, Inc., (Copyright © 2017 by John Wiley and Sons, Inc.)
- Published
- 2017
- Full Text
- View/download PDF
26. Differentiating mouse embryonic stem cells express markers of human endometrium.
- Author
-
Parasar P, Sacha CR, Ng N, McGuirk ER, Chinthala S, Ozcan P, Lindsey J, Salas S, Laufer MR, Missmer SA, and Anchan RM
- Subjects
- Animals, CD13 Antigens genetics, CD13 Antigens metabolism, CD146 Antigen genetics, CD146 Antigen metabolism, Cell Line, Embryoid Bodies metabolism, Endometriosis diagnosis, Endometriosis genetics, Endometriosis metabolism, Female, Gene Expression, Humans, Mice, Mice, 129 Strain, Mice, Inbred C57BL, Mouse Embryonic Stem Cells cytology, Receptor, Platelet-Derived Growth Factor beta genetics, Receptor, Platelet-Derived Growth Factor beta metabolism, Tetraspanin 29 genetics, Tetraspanin 29 metabolism, Biomarkers metabolism, Cell Differentiation, Endometrium metabolism, Mouse Embryonic Stem Cells metabolism
- Abstract
Background: Modeling early endometrial differentiation is a crucial step towards understanding the divergent pathways between normal and ectopic endometrial development as seen in endometriosis., Methods: To investigate these pathways, mouse embryonic stem cells (mESCs) and embryoid bodies (EBs) were differentiated in standard EB medium (EBM). Immunofluorescence (IF) staining and reverse-transcription polymerase chain reaction (RT-PCR) were used to detect expression of human endometrial cell markers on differentiating cells, which were sorted into distinct populations using fluorescence-activated cell sorting (FACS)., Results: A subpopulation (50%) of early differentiating mESCs expressed both glandular (CD9) and stromal (CD13) markers of human endometrium, suggestive of a novel endometrial precursor cell population. We further isolated a small population of endometrial mesenchymal stem cells, CD45-/CD146+/PDGFR-β+, from differentiating EBs, representing 0.7% of total cells. Finally, quantitative PCR demonstrated significantly amplified expression of transcription factors Hoxa10 and Foxa2 in CD13+ EBs isolated by FACS (p = 0.03)., Conclusions: These findings demonstrate that mESCs have the capacity to express human endometrial cell markers and demonstrate potential differentiation pathways of endometrial precursor and mesenchymal stem cells, providing an in vitro system to model early endometrial tissue development. This model represents a key step in elucidating the mechanisms of ectopic endometrial tissue growth. Such a system could enable the development of strategies to prevent endometriosis and identify approaches for non-invasive monitoring of disease progression.
- Published
- 2017
- Full Text
- View/download PDF
27. Hereditary leiomyomatosis and renal cell cancer: Cutaneous lesions & atypical fibroids.
- Author
-
Bortoletto P, Lindsey JL, Yuan L, Quade BJ, Gargiulo AR, Morton CC, Stewart EA, and Anchan RM
- Abstract
Objective: To report a diagnosis of hereditary leiomyomatosis and renal cell cancer (HLRCC) syndrome following initial presentation with multiple cutaneous lesions., Design: Case report., Design Classification: N/A., Setting: Academic tertiary care center., Patients: 27-year-old nulligravid woman who presented with multiple red-brown lesions on her skin found to have cutaneous and uterine leiomyoma., Interventions: Biopsy of cutaneous lesions and fertility sparing robot-assisted laparoscopic myomectomy (RALM)., Main Outcome Measuress: Histological assessment of uterine leiomyoma., Resultss: Pathologic examination of uterine leiomyoma revealed diffuse atypia and fumarate hydratase loss phenotype concerning for genetic syndrome. Follow-up DNA sequencing via Sanger sequencing confirmed a pathogenetic R2333H mutation consistent with HLRCC., Conclusions: Consideration of HLRCC on differential diagnosis when patients present with cutaneous nodules and atypical or early onset uterine leiomyoma provides opportunity for early surveillance, family member testing, and more thoughtful surgical planning., Precis: 27-year-old woman with multiple cutaneous lesions is found to have uterine leiomyomas and undergoes robotic myomectomy. Genetic testing of uterine leiomyomas reveals mutation in fumarate hydratase, etiologic in hereditary leiomyomatosis and renal cell cancer (HLRCC).
- Published
- 2017
- Full Text
- View/download PDF
28. Association between peak estradiol levels and ovarian torsion among symptomatic patients receiving gonadotropin treatment.
- Author
-
Romanski PA, Melamed A, Elias KM, Stanic AK, and Anchan RM
- Subjects
- Adult, Female, Fertilization in Vitro adverse effects, Gonadotropins administration & dosage, Gonadotropins adverse effects, Humans, Ovarian Diseases etiology, Ovarian Diseases physiopathology, Ovarian Diseases surgery, Ovarian Hyperstimulation Syndrome blood, Ovarian Hyperstimulation Syndrome etiology, Ovarian Hyperstimulation Syndrome physiopathology, Ovarian Hyperstimulation Syndrome surgery, Ovary pathology, Ovary surgery, Ovulation Induction adverse effects, Pregnancy, Risk Factors, Biomarkers blood, Estradiol blood, Ovarian Diseases blood, Reproductive Techniques, Assisted adverse effects
- Abstract
Purpose: Ovarian torsion is a surgical emergency that can be clinically challenging to diagnose. Patients who have received assisted reproductive technologies (ART) are a subset of women with an increased risk for torsion. As the ART population continues to increase, there is a need to delineate risk factors for the development of ovarian torsion in this unique population. A pilot study was performed to determine the proportion of patients with suspected ovarian torsion who have received ART and to identify possible diagnostic biomarkers for ovarian torsion among these patients., Methods: A single institution retrospective cohort study of patients taken to surgery for suspected ovarian torsion over a 5-year period., Results: During the study period, 171 patients were taken to surgery for suspected ovarian torsion. Patients receiving ART constituted 19 (11%) of these patients. Among the 19 fertility treatment patients, 16 had received treatment with gonadotropins, 10 of which had surgically confirmed ovarian torsion. These ten patients had higher preoperative peak estradiol levels (3122 versus 1875 pg/mL, p = 0.05) and a larger ovarian diameter (9.7 versus 7.6 cm, p = 0.05) than the six patients receiving gonadotropins found to not have ovarian torsion., Conclusions: These results suggest infertility treatment using gonadotropins for ovarian hyperstimulation may be an independent risk factor for ovarian torsion as suggested by the disproportionate number of such individuals represented in the study population (9% of all patients, 84% of fertility patients). Additionally, among women taking gonadotropins, an association exists between peak estradiol levels, ovarian diameter, and risk for ovarian torsion.
- Published
- 2017
- Full Text
- View/download PDF
29. Sperm processing for advanced reproductive technologies: Where are we today?
- Author
-
Rappa KL, Rodriguez HF, Hakkarainen GC, Anchan RM, Mutter GL, and Asghar W
- Subjects
- Fertilization in Vitro, Humans, Male, Sperm Injections, Intracytoplasmic, Cell Separation, Reproductive Techniques, Spermatozoa cytology, Spermatozoa physiology
- Abstract
Assisted reproductive technologies (ARTs) utilize sperm sorting methods to select viable sperm from the semen samples. Conventional sperm sorting techniques in current use are density gradient centrifugation, direct swim-up, and conventional swim-up. These methods use multiple centrifugation steps, which have been shown to generate reactive oxygen species (ROS) that decrease DNA integrity and damage sperm. Newer technologies, such as microfluidics, electrophoresis, motile sperm organelle morphology examination (MSOME), and birefringence eliminate the centrifugation steps and can improve the selection of sperm with higher DNA integrity, normal morphology, and motility as well as improved artificial insemination outcomes. In this review, we discuss some recent research in centrifugation and non-centrifugation based techniques and their effect on sperm quality and ART outcomes., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
30. Toxicology Study of Single-walled Carbon Nanotubes and Reduced Graphene Oxide in Human Sperm.
- Author
-
Asghar W, Shafiee H, Velasco V, Sah VR, Guo S, El Assal R, Inci F, Rajagopalan A, Jahangir M, Anchan RM, Mutter GL, Ozkan M, Ozkan CS, and Demirci U
- Subjects
- Biological Specimen Banks, Cell Survival drug effects, Cells, Cultured, Dose-Response Relationship, Drug, Humans, Male, Microfluidic Analytical Techniques, Nitric Oxide agonists, Nitric Oxide metabolism, Oxidation-Reduction, Oxides, Sperm Motility drug effects, Spermatozoa cytology, Spermatozoa metabolism, Superoxides metabolism, Cryopreservation, Graphite pharmacology, Nanotubes, Carbon toxicity, Spermatozoa drug effects, Superoxides agonists
- Abstract
Carbon-based nanomaterials such as single-walled carbon nanotubes and reduced graphene oxide are currently being evaluated for biomedical applications including in vivo drug delivery and tumor imaging. Several reports have studied the toxicity of carbon nanomaterials, but their effects on human male reproduction have not been fully examined. Additionally, it is not clear whether the nanomaterial exposure has any effect on sperm sorting procedures used in clinical settings. Here, we show that the presence of functionalized single walled carbon nanotubes (SWCNT-COOH) and reduced graphene oxide at concentrations of 1-25 μg/mL do not affect sperm viability. However, SWCNT-COOH generate significant reactive superoxide species at a higher concentration (25 μg/mL), while reduced graphene oxide does not initiate reactive species in human sperm. Further, we demonstrate that exposure to these nanomaterials does not hinder the sperm sorting process, and microfluidic sorting systems can select the sperm that show low oxidative stress post-exposure.
- Published
- 2016
- Full Text
- View/download PDF
31. Contained tissue extraction using power morcellation: prospective evaluation of leakage parameters.
- Author
-
Cohen SL, Morris SN, Brown DN, Greenberg JA, Walsh BW, Gargiulo AR, Isaacson KB, Wright KN, Srouji SS, Anchan RM, Vogell AB, and Einarsson JI
- Subjects
- Adult, Cohort Studies, Female, Humans, Laparoscopy methods, Middle Aged, Prospective Studies, Robotic Surgical Procedures methods, Tumor Burden, Uterine Diseases surgery, Coloring Agents, Hysterectomy methods, Leiomyoma surgery, Morcellation methods, Uterine Myomectomy methods, Uterine Neoplasms surgery
- Abstract
Background: Safe tissue removal is a challenge for minimally invasive procedures such as myomectomy, supracervical hysterectomy, or total hysterectomy of a large uterine specimen. There is concern regarding disruption or dissemination of tissue during this process, which may be of particular significance in cases of undetected malignancy. Contained tissue extraction techniques have been developed in an effort to mitigate morcellation-related risks., Objective: The objective of the study was to quantify perioperative outcomes of contained tissue extraction using power morcellation, specifically evaluating parameters of tissue or fluid leakage from within the containment system., Study Design: This was a study including a multicenter prospective cohort of adult women who underwent minimally invasive hysterectomy or myomectomy using a contained power morcellation technique. Blue dye was applied to the tissue specimen prior to removal to help identify cases of fluid or tissue leakage from within the containment system., Results: A total of 76 patients successfully underwent the contained power morcellation protocol. Mean time for the contained morcellation procedure was 30.2 minutes (±22.4). The mean hysterectomy specimen weight was 480.1 g (±359.1), and mean myomectomy specimen weight was 239.1 g (±229.7). The vast majority of patients (73.7%) were discharged home the same day of surgery. Final pathological diagnosis was benign in all cases. Spillage of dye or tissue was noted in 7 cases (9.2%), although containment bags were intact in each of these instances., Conclusion: Findings are consistent with prior work demonstrating the feasibility of contained tissue extraction; however, further refinement of this technique is warranted., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
32. Deformation of a single mouse oocyte in a constricted microfluidic channel.
- Author
-
Luo Z, Guven S, Gozen I, Chen P, Tasoglu S, Anchan RM, Bai B, and Demirci U
- Abstract
Single oocyte manipulation in microfluidic channels via precisely controlled flow is critical in microfluidic-based in vitro fertilization. Such systems can potentially minimize the number of transfer steps among containers for rinsing as often performed during conventional in vitro fertilization and can standardize protocols by minimizing manual handling steps. To study shape deformation of oocytes under shear flow and its subsequent impact on their spindle structure is essential for designing microfluidics for in vitro fertilization. Here, we developed a simple yet powerful approach to (i) trap a single oocyte and induce its deformation through a constricted microfluidic channel, (ii) quantify oocyte deformation in real-time using a conventional microscope, and (iii) retrieve the oocyte from the microfluidic device to evaluate changes in their spindle structures. We found that oocytes can be significantly deformed under high flow rates, e.g., 10 μl/min in a constricted channel with a width and height of 50 and 150 μm, respectively. Oocyte spindles can be severely damaged, as shown here by immunocytochemistry staining of the microtubules and chromosomes. The present approach can be useful to investigate underlying mechanisms of oocyte deformation exposed to well-controlled shear stresses in microfluidic channels, which enables a broad range of applications for reproductive medicine.
- Published
- 2015
- Full Text
- View/download PDF
33. MATR3 disruption in human and mouse associated with bicuspid aortic valve, aortic coarctation and patent ductus arteriosus.
- Author
-
Quintero-Rivera F, Xi QJ, Keppler-Noreuil KM, Lee JH, Higgins AW, Anchan RM, Roberts AE, Seong IS, Fan X, Lage K, Lu LY, Tao J, Hu X, Berezney R, Gelb BD, Kamp A, Moskowitz IP, Lacro RV, Lu W, Morton CC, Gusella JF, and Maas RL
- Subjects
- Adolescent, Animals, Aortic Coarctation metabolism, Aortic Valve metabolism, Bicuspid Aortic Valve Disease, Child, Preschool, DNA-Binding Proteins genetics, DNA-Binding Proteins metabolism, Ductus Arteriosus, Patent metabolism, Female, Gene Silencing, Heart Valve Diseases metabolism, Heart Ventricles abnormalities, Heart Ventricles metabolism, Humans, Infant, Newborn, Male, Mice, Mutagenesis, Insertional, Nuclear Matrix-Associated Proteins metabolism, RNA-Binding Proteins metabolism, Translocation, Genetic, Aortic Coarctation genetics, Aortic Valve abnormalities, Ductus Arteriosus, Patent genetics, Heart Valve Diseases genetics, Nuclear Matrix-Associated Proteins genetics, RNA-Binding Proteins genetics
- Abstract
Cardiac left ventricular outflow tract (LVOT) defects represent a common but heterogeneous subset of congenital heart disease for which gene identification has been difficult. We describe a 46,XY,t(1;5)(p36.11;q31.2)dn translocation carrier with pervasive developmental delay who also exhibited LVOT defects, including bicuspid aortic valve (BAV), coarctation of the aorta (CoA) and patent ductus arteriosus (PDA). The 1p breakpoint disrupts the 5' UTR of AHDC1, which encodes AT-hook DNA-binding motif containing-1 protein, and AHDC1-truncating mutations have recently been described in a syndrome that includes developmental delay, but not congenital heart disease [Xia, F., Bainbridge, M.N., Tan, T.Y., Wangler, M.F., Scheuerle, A.E., Zackai, E.H., Harr, M.H., Sutton, V.R., Nalam, R.L., Zhu, W. et al. (2014) De Novo truncating mutations in AHDC1 in individuals with syndromic expressive language delay, hypotonia, and sleep apnea. Am. J. Hum. Genet., 94, 784-789]. On the other hand, the 5q translocation breakpoint disrupts the 3' UTR of MATR3, which encodes the nuclear matrix protein Matrin 3, and mouse Matr3 is strongly expressed in neural crest, developing heart and great vessels, whereas Ahdc1 is not. To further establish MATR3 3' UTR disruption as the cause of the proband's LVOT defects, we prepared a mouse Matr3(Gt-ex13) gene trap allele that disrupted the 3' portion of the gene. Matr3(Gt-ex13) homozygotes are early embryo lethal, but Matr3(Gt-ex13) heterozygotes exhibit incompletely penetrant BAV, CoA and PDA phenotypes similar to those in the human proband, as well as ventricular septal defect (VSD) and double-outlet right ventricle (DORV). Both the human MATR3 translocation breakpoint and the mouse Matr3(Gt-ex13) gene trap insertion disturb the polyadenylation of MATR3 transcripts and alter Matrin 3 protein expression, quantitatively or qualitatively. Thus, subtle perturbations in Matrin 3 expression appear to cause similar LVOT defects in human and mouse., (© The Author 2015. Published by Oxford University Press.)
- Published
- 2015
- Full Text
- View/download PDF
34. Functional maintenance of differentiated embryoid bodies in microfluidic systems: a platform for personalized medicine.
- Author
-
Guven S, Lindsey JS, Poudel I, Chinthala S, Nickerson MD, Gerami-Naini B, Gurkan UA, Anchan RM, and Demirci U
- Subjects
- Animals, Antigens, Differentiation metabolism, Humans, Mice, Cell Culture Techniques instrumentation, Cell Culture Techniques methods, Embryoid Bodies cytology, Embryoid Bodies metabolism, Microfluidic Analytical Techniques instrumentation, Microfluidic Analytical Techniques methods, Precision Medicine instrumentation, Precision Medicine methods
- Abstract
Hormone replacement therapies have become important for treating diseases such as premature ovarian failure or menopausal complications. The clinical use of bioidentical hormones might significantly reduce some of the potential risks reportedly associated with the use of synthetic hormones. In the present study, we demonstrate the utility and advantage of a microfluidic chip culture system to enhance the development of personalized, on-demand, treatment modules using embryoid bodies (EBs). Functional EBs cultured on microfluidic chips represent a platform for personalized, patient-specific treatment cassettes that can be cryopreserved until required for treatment. We assessed the viability, differentiation, and functionality of EBs cultured and cryopreserved in this system. During extended microfluidic culture, estradiol, progesterone, testosterone, and anti-müllerian hormone levels were measured, and the expression of differentiated steroidogenic cells was confirmed by immunocytochemistry assay for the ovarian tissue markers anti-müllerian hormone receptor type II, follicle-stimulating hormone receptor, and inhibin β-A and the estrogen biosynthesis enzyme aromatase. Our studies showed that under microfluidic conditions, differentiated steroidogenic EBs continued to secrete estradiol and progesterone at physiologically relevant concentrations (30-120 pg/ml and 150-450 pg/ml, respectively) for up to 21 days. Collectively, we have demonstrated for the first time the feasibility of using a microfluidic chip system with continuous flow for the differentiation and extended culture of functional steroidogenic stem cell-derived EBs, the differentiation of EBs into cells expressing ovarian antigens in a microfluidic system, and the ability to cryopreserve this system with restoration of growth and functionality on thawing. These results present a platform for the development of a new therapeutic system for personalized medicine., (©AlphaMed Press.)
- Published
- 2015
- Full Text
- View/download PDF
35. Beware the scar: Laparoscopic hysterectomy for 7-week cesarean delivery scar implantation pregnancy.
- Author
-
Berhie SH, Molina RL, Davis MR, Anchan RM, and Wang KC
- Subjects
- Adult, Female, Humans, Hysterectomy, Pregnancy, Pregnancy, Ectopic surgery, Ultrasonography, Cesarean Section adverse effects, Cicatrix complications, Pregnancy, Ectopic diagnostic imaging
- Published
- 2015
- Full Text
- View/download PDF
36. Pax6- and Six3-mediated induction of lens cell fate in mouse and human ES cells.
- Author
-
Anchan RM, Lachke SA, Gerami-Naini B, Lindsey J, Ng N, Naber C, Nickerson M, Cavallesco R, Rowan S, Eaton JL, Xi Q, and Maas RL
- Subjects
- Animals, Blotting, Western, Cell Differentiation, Cell Proliferation, Cells, Cultured, Embryonic Stem Cells cytology, Eye Proteins genetics, Homeodomain Proteins genetics, Humans, Lens, Crystalline cytology, Mice, Nerve Tissue Proteins genetics, PAX6 Transcription Factor, Paired Box Transcription Factors genetics, RNA, Messenger genetics, Real-Time Polymerase Chain Reaction, Repressor Proteins genetics, Reverse Transcriptase Polymerase Chain Reaction, Homeobox Protein SIX3, Embryonic Stem Cells physiology, Eye Proteins metabolism, Gene Expression Regulation, Developmental, Homeodomain Proteins metabolism, Lens, Crystalline physiology, Nerve Tissue Proteins metabolism, Paired Box Transcription Factors metabolism, Repressor Proteins metabolism
- Abstract
Embryonic stem (ES) cells provide a potentially useful in vitro model for the study of in vivo tissue differentiation. We used mouse and human ES cells to investigate whether the lens regulatory genes Pax6 and Six3 could induce lens cell fate in vitro. To help assess the onset of lens differentiation, we derived a new mES cell line (Pax6-GFP mES) that expresses a GFP reporter under the control of the Pax6 P0 promoter and lens ectoderm enhancer. Pax6 or Six3 expression vectors were introduced into mES or hES cells by transfection or lentiviral infection and the differentiating ES cells analyzed for lens marker expression. Transfection of mES cells with Pax6 or Six3 but not with other genes induced the expression of lens cell markers and up-regulated GFP reporter expression in Pax6-GFP mES cells by 3 days post-transfection. By 7 days post-transfection, mES cell cultures exhibited a>10-fold increase over controls in the number of colonies expressing γA-crystallin, a lens fiber cell differentiation marker. RT-PCR and immunostaining revealed induction of additional lens epithelial or fiber cell differentiation markers including Foxe3, Prox1, α- and β-crystallins, and Tdrd7. Moreover, γA-crystallin- or Prox1-expressing lentoid bodies formed by 30 days in culture. In hES cells, Pax6 or Six3 lentiviral vectors also induced lens marker expression. mES cells that express lens markers reside close to but are distinct from the Pax6 or Six3 transduced cells, suggesting that the latter induce nearby undifferentiated ES cells to adopt a lens fate by non-cell autonomous mechanisms. In sum, we describe a novel mES cell GFP reporter line that is useful for monitoring induction of lens fate, and demonstrate that Pax6 or Six3 is sufficient to induce ES cells to adopt a lens fate, potentially via non-cell autonomous mechanisms. These findings should facilitate investigations of lens development.
- Published
- 2014
- Full Text
- View/download PDF
37. Selection of functional human sperm with higher DNA integrity and fewer reactive oxygen species.
- Author
-
Asghar W, Velasco V, Kingsley JL, Shoukat MS, Shafiee H, Anchan RM, Mutter GL, Tüzel E, and Demirci U
- Subjects
- DNA metabolism, DNA Fragmentation, Humans, Male, Reactive Oxygen Species metabolism, Reproductive Techniques, Assisted, Spermatozoa metabolism, Spermatozoa physiology, Cell Separation methods, DNA chemistry, Reactive Oxygen Species analysis, Spermatozoa cytology
- Abstract
Fertilization and reproduction are central to the survival and propagation of a species. Couples who cannot reproduce naturally have to undergo in vitro clinical procedures. An integral part of these clinical procedures includes isolation of healthy sperm from raw semen. Existing sperm sorting methods are not efficient and isolate sperm having high DNA fragmentation and reactive oxygen species (ROS), and suffer from multiple manual steps and variations between operators. Inspired by in vivo natural sperm sorting mechanisms where vaginal mucus becomes less viscous to form microchannels to guide sperm towards egg, a chip is presented that efficiently sorts healthy, motile and morphologically normal sperm without centrifugation. Higher percentage of sorted sperm show significantly lesser ROS and DNA fragmentation than the conventional swim-up method. The presented chip is an easy-to-use high-throughput sperm sorter that provides standardized sperm sorting assay with less reliance on operators's skills, facilitating reliable operational steps., (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2014
- Full Text
- View/download PDF
38. Preserving human cells for regenerative, reproductive, and transfusion medicine.
- Author
-
Asghar W, El Assal R, Shafiee H, Anchan RM, and Demirci U
- Subjects
- Cell Survival, Cryoprotective Agents, Embryonic Stem Cells cytology, Erythrocytes cytology, Humans, Mesenchymal Stem Cells cytology, Oocytes cytology, Vitrification, Cryopreservation methods, Regenerative Medicine methods, Reproductive Medicine methods, Transfusion Medicine methods
- Abstract
Cell cryopreservation maintains cellular life at sub-zero temperatures by slowing down biochemical processes. Various cell types are routinely cryopreserved in modern reproductive, regenerative, and transfusion medicine. Current cell cryopreservation methods involve freezing (slow/rapid) or vitrifying cells in the presence of a cryoprotective agent (CPA). Although these methods are clinically utilized, cryo-injury due to ice crystals, osmotic shock, and CPA toxicity cause loss of cell viability and function. Recent approaches using minimum volume vitrification provide alternatives to the conventional cryopreservation methods. Minimum volume vitrification provides ultra-high cooling and rewarming rates that enable preserving cells without ice crystal formation. Herein, we review recent advances in cell cryopreservation technology and provide examples of techniques that are utilized in oocyte, stem cell, and red blood cell cryopreservation., (Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2014
- Full Text
- View/download PDF
39. Exhaustion of racing sperm in nature-mimicking microfluidic channels during sorting.
- Author
-
Tasoglu S, Safaee H, Zhang X, Kingsley JL, Catalano PN, Gurkan UA, Nureddin A, Kayaalp E, Anchan RM, Maas RL, Tüzel E, and Demirci U
- Subjects
- Animals, Cell Separation, Computer Simulation, Humans, Male, Mice, Time Factors, Cell Movement, Microfluidics methods, Spermatozoa cytology
- Abstract
Fertilization is central to the survival and propagation of a species, however, the precise mechanisms that regulate the sperm's journey to the egg are not well understood. In nature, the sperm has to swim through the cervical mucus, akin to a microfluidic channel. Inspired by this, a simple, cost-effective microfluidic channel is designed on the same scale. The experimental results are supported by a computational model incorporating the exhaustion time of sperm., (Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2013
- Full Text
- View/download PDF
40. Gestational carriers: A viable alternative for women with medical contraindications to pregnancy.
- Author
-
Anchan RM, Missmer SA, Correia KF, and Ginsburg ES
- Abstract
Objective: Compare the efficacy of surrogate or gestational carrier (GC) cycles to that of autologous in vitro fertilization (IVF)/intracytoplasmic sperm injections (ICSI) in patients with gynecologic or medical co-morbidities contraindicative to pregnancy., Design: Retrospective cohort study., Setting: Infertility patients from a single university hospital-based program from 1998-2009., Interventions: 128 GC cycles from 80 intended parents were identified and compared with 15,311 IVF or ICSI cycles., Main Outcome Measures: The peak estradiol (E2), number of oocytes retrieved, cycle cancellation, ongoing pregnancy, and live-birth were compared between GCs and autologous IVF carriers. Indications for GC use were also identified. Multiple cycles contributed by the same patient were accounted for using multivariable generalized estimating equations and two-sided Wald p-values., Results: Uterine factors (67%) was the most common indication for using a GC, followed by non-gynecologic medical conditions including coagulopathies (13%), end stage renal disease (10%), cardiovascular disease (5%) and cancer (5%). Adjusting for age, ovulation induction in GC cycles had similar peak E2 levels and number of oocytes retrieved relative to IVF cycles (p = 0.23 and 0.43, respectively). Clinical pregnancy (49% vs. 42%, p = 0.28) and live-birth rates (31% vs. 32%, p = 0.74) were also comparable. A sub-analysis of GC cycles in those women with uterine factor indications, demonstrated significantly higher clinical pregnancy rates (OR = 2.0; CI = 1.2 - 3.5) with 60% greater odds of live-birth relative to IVF/ICSI cycles, however this odds was not statistically significant for differences in live-birth (CI = 0.9 - 2.9). Conclusions: GCs are a viable alternative to start families for patients with medical co-morbidities precluding pregnancy.
- Published
- 2013
- Full Text
- View/download PDF
41. Nanoliter droplet vitrification for oocyte cryopreservation.
- Author
-
Zhang X, Khimji I, Shao L, Safaee H, Desai K, Keles HO, Gurkan UA, Kayaalp E, Nureddin A, Anchan RM, Maas RL, and Demirci U
- Subjects
- Animals, Cryoprotective Agents, Female, Mice, Cryopreservation methods, Oocytes
- Abstract
Aim: Oocyte cryopreservation remains largely experimental, with live birth rates of only 2-4% per thawed oocyte. In this study, we present a nanoliter droplet technology for oocyte vitrification., Materials & Methods: An ejector-based droplet vitrification system was designed to continuously cryopreserve oocytes in nanoliter droplets. Oocyte survival rates, morphologies and parthenogenetic development after each vitrification step were assessed in comparison with fresh oocytes., Results: Oocytes were retrieved after cryoprotectant agent loading/unloading, and nanoliter droplet encapsulation showed comparable survival rates to fresh oocytes after 24 h in culture. Also, oocytes recovered after vitrification/thawing showed similar morphologies to those of fresh oocytes. Additionally, the rate of oocyte parthenogenetic activation after nanoliter droplet encapsulation was comparable with that observed for fresh oocytes. This nanoliter droplet technology enables the vitrification of oocytes at higher cooling and warming rates using lower cryoprotectant agent levels (i.e., 1.4 M ethylene glycol, 1.1 M dimethyl sulfoxide and 1 M sucrose), thus making it a potential technology to improve oocyte cryopreservation outcomes.
- Published
- 2012
- Full Text
- View/download PDF
42. Amniocytes can serve a dual function as a source of iPS cells and feeder layers.
- Author
-
Anchan RM, Quaas P, Gerami-Naini B, Bartake H, Griffin A, Zhou Y, Day D, Eaton JL, George LL, Naber C, Turbe-Doan A, Park PJ, Hornstein MD, and Maas RL
- Subjects
- Animals, Cell Culture Techniques instrumentation, Cells, Cultured, Embryonic Stem Cells cytology, Embryonic Stem Cells metabolism, Female, Humans, Induced Pluripotent Stem Cells metabolism, Mice, Mice, Inbred C57BL, Octamer Transcription Factors genetics, Octamer Transcription Factors metabolism, Amnion cytology, Cell Culture Techniques methods, Cell Differentiation, Induced Pluripotent Stem Cells cytology
- Abstract
Clinical barriers to stem-cell therapy include the need for efficient derivation of histocompatible stem cells and the zoonotic risk inherent to human stem-cell xenoculture on mouse feeder cells. We describe a system for efficiently deriving induced pluripotent stem (iPS) cells from human and mouse amniocytes, and for maintaining the pluripotency of these iPS cells on mitotically inactivated feeder layers prepared from the same amniocytes. Both cellular components of this system are thus autologous to a single donor. Moreover, the use of human feeder cells reduces the risk of zoonosis. Generation of iPS cells using retroviral vectors from short- or long-term cultured human and mouse amniocytes using four factors, or two factors in mouse, occurs in 5-7 days with 0.5% efficiency. This efficiency is greater than that reported for mouse and human fibroblasts using similar viral infection approaches, and does not appear to result from selective reprogramming of Oct4(+) or c-Kit(+) amniocyte subpopulations. Derivation of amniocyte-derived iPS (AdiPS) cell colonies, which express pluripotency markers and exhibit appropriate microarray expression and DNA methylation properties, was facilitated by live immunostaining. AdiPS cells also generate embryoid bodies in vitro and teratomas in vivo. Furthermore, mouse and human amniocytes can serve as feeder layers for iPS cells and for mouse and human embryonic stem (ES) cells. Thus, human amniocytes provide an efficient source of autologous iPS cells and, as feeder cells, can also maintain iPS and ES cell pluripotency without the safety concerns associated with xenoculture.
- Published
- 2011
- Full Text
- View/download PDF
43. Fertility concerns and preservation in younger women with breast cancer.
- Author
-
Anchan RM and Ginsburg ES
- Subjects
- Female, Humans, Male, Ovary physiopathology, Breast Neoplasms physiopathology, Fertility
- Abstract
Nearly 30% of breast cancer cases present in women younger than 50 years old. While newer treatment regimens employed are less gonadotoxic, regimens still consist of combination medications that include cyclophosphamide, known to deplete the number of primordial follicles, thereby potentially leading to infertility. For common regimens such as adriamycin/cytoxan (AC), the risk of premature ovarian failure was thought to be largely dependent on patient age, with the risk of complete ovarian failure <10% in women <30, and nearly 100% in women >40 (Hortobagyi et al. (1986) [1]); however recent studies indicate that AC is considered to have intermediate risk for gonadotoxicity in women >40 years age. This review examines major strides in the field of reproductive medicine over the past 20 years including the use of leuprolide acetate, embryo cryopreservation, oocyte cryopreservation and ovarian tissue banking. We also discuss the role of gestational carriers and adoption in establishing families as a viable option for many of these cancer patients who may be unable to avail themselves of other alternatives to fertility preservation., (Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
44. Vitrification and levitation of a liquid droplet on liquid nitrogen.
- Author
-
Song YS, Adler D, Xu F, Kayaalp E, Nureddin A, Anchan RM, Maas RL, and Demirci U
- Subjects
- Computer Simulation, Crystallization, Models, Chemical, Volatilization, Algorithms, Cryoprotective Agents chemistry, Nitrogen chemistry
- Abstract
The vitrification of a liquid occurs when ice crystal formation is prevented in the cryogenic environment through ultrarapid cooling. In general, vitrification entails a large temperature difference between the liquid and its surrounding medium. In our droplet vitrification experiments, we observed that such vitrification events are accompanied by a Leidenfrost phenomenon, which impedes the heat transfer to cool the liquid, when the liquid droplet comes into direct contact with liquid nitrogen. This is distinct from the more generally observed Leidenfrost phenomenon that occurs when a liquid droplet is self-vaporized on a hot plate. In the case of rapid cooling, the phase transition from liquid to vitrified solid (i.e., vitrification) and the levitation of droplets on liquid nitrogen (i.e., Leidenfrost phenomenon) take place simultaneously. Here, we investigate these two simultaneous physical events by using a theoretical model containing three dimensionless parameters (i.e., Stefan, Biot, and Fourier numbers). We explain theoretically and observe experimentally a threshold droplet radius during the vitrification of a cryoprotectant droplet in the presence of the Leidenfrost effect.
- Published
- 2010
- Full Text
- View/download PDF
45. Gestational diabetes is associated with depressed adiponectin levels.
- Author
-
Thyfault JP, Hedberg EM, Anchan RM, Thorne OP, Isler CM, Newton ER, Dohm GL, and deVente JE
- Subjects
- Adiponectin, Adult, Blood Glucose analysis, Case-Control Studies, Female, Humans, Hypoglycemic Agents blood, Insulin blood, Intercellular Signaling Peptides and Proteins pharmacology, Pregnancy, Risk Factors, Diabetes, Gestational physiopathology, Insulin Resistance, Intercellular Signaling Peptides and Proteins blood
- Abstract
Objective: Adiponectin is a 29-kd adipocyte-secreted protein that has been linked to insulin resistance in obesity and diabetes. The aim of the present study was to evaluate adiponectin levels in the insulin-resistant state of diabetes in gestation., Methods: Term, gravid subjects with diabetes (n = 31; age, 30.0 +/- 0.9 years; weight, 98.8 +/- 4.6 kg) and healthy, term, gravid subjects (n = 27; age, 26.1 +/- 1.1 years; weight, 91.2 +/- 3.78 kg) were examined. The diabetes group consisted of 11 class A1, 11 class A2, and nine class B subjects. Plasma insulin, glucose, adiponectin, and leptin were measured on samples obtained immediately before Cesarean or vaginal delivery. Data were presented as means +/- SE, and significance is set at P < or = .05., Results: We observed decreased adiponectin levels in class A2 (4.93 +/- 0.58 microg/mL; P = .013) and class B diabetics (3.33 +/- 0.56 microg/mL; P = .001) as compared to controls (8.17 +/- 0.82 microg/mL), while a nonsignificant decrease was also observed in class A1 (6.58 +/- 1.13 microg/mL; P = .213). When grouping all gravid subjects, we observed that non-Caucasian subjects (n = 42) (5.51 +/- 0.51 microg/mL; P = .003) had lower adiponectin levels than Caucasian subjects (n = 16) (8.88 +/- 1.11 microg/mL). Within the non-Caucasian group, we found significantly lower adiponectin levels in diabetic gravid subjects (class A2: 4.24 +/- 0.75 microg/mL; P = .044; and class B: 3.33 +/- 0.56 microg/mL; P = .005) compared with nondiabetic gravid subjects (7.05 +/- 0.80 microg/mL)., Conclusion: Class A2 and B gestational diabetes are associated with suppressed levels of adiponectin, similar to that found in other insulin-resistant states (type II diabetes and obesity).
- Published
- 2005
- Full Text
- View/download PDF
46. Disruption of local retinoid-mediated gene expression accompanies abnormal development in the mammalian olfactory pathway.
- Author
-
Anchan RM, Drake DP, Haines CF, Gerwe EA, and LaMantia AS
- Subjects
- Acyclic Monoterpenes, Animals, DNA-Binding Proteins genetics, Embryo, Mammalian drug effects, Enzyme Inhibitors pharmacology, Eye Proteins, Female, Gene Expression Regulation, Developmental drug effects, Male, Mesoderm cytology, Mesoderm drug effects, Mesoderm physiology, Mice, Morphogenesis drug effects, Morphogenesis genetics, Olfactory Pathways physiology, PAX6 Transcription Factor, Paired Box Transcription Factors, Repressor Proteins, Signal Transduction drug effects, Signal Transduction physiology, Terpenes pharmacology, Transcription Factors genetics, Homeodomain Proteins, Mice, Transgenic embryology, Monoterpenes, Olfactory Pathways embryology, Retinoids pharmacology
- Abstract
We have evaluated the role of retinoid signaling in the early development of the olfactory epithelium and olfactory bulb. When retinoid-mediated gene expression is blocked briefly in mouse embryos at midgestation with citral (a general alcohol dehydrogenase antagonist that is thought to interfere with retinoid synthesis), the spectrum of morphogenetic abnormalities includes disruption of olfactory pathway development. It is difficult, however, to assess the specificity of this pharmacological manipulation, insofar as it also compromises several other aspects of central nervous system development. In homozygous Pax6 mutant mice (small eye: Pax6(Sey-Neu)), there is a more discrete lesion to the olfactory pathway: The epithelium and bulb cannot be recognized at any time during development, whereas other forebrain subdivisions can still be recognized. This loss of the entire primary olfactory pathway is accompanied by a failure of retinoid-mediated gene expression limited to the frontonasal region and forebrain. Retinoid receptors are expressed in the forebrain of Pax6(Sey-Neu)/Pax6(Sey-Neu) embryos, and the mutant forebrain remains responsive to exogenous retinoic acid. However, in Pax6(Sey-Neu)/ Pax6(Sey-Neu) embryos, retinoic acid (RA) is not produced by the frontonasal mesenchyme, which normally provides local retinoid signals to the placode and forebrain. Together, these results suggest that local retinoid signaling is essential for the normal development of the mammalian olfactory pathway.
- Published
- 1997
47. Transforming growth factor-beta-3 is mitogenic for rat retinal progenitor cells in vitro.
- Author
-
Anchan RM and Reh TA
- Subjects
- Animals, Rats, Retina drug effects, Retina embryology, Mitogens pharmacology, Retina cytology, Stem Cells drug effects, Transforming Growth Factor beta pharmacology
- Abstract
Recent data indicate that the process of neurogenesis in the mammalian central nervous system (CNS) may be regulated by peptide growth factors, such as epidermal growth factor, transforming growth factor-alpha, and acidic or basic fibroblast growth factor. We have investigated whether members of the transforming growth factor-beta (TGF beta) family also play a role in this process and have found that TGF beta-3 is mitogenic for embryonic rat retinal cells in vitro. We also show that TGF beta-3 stimulates production of retinal amacrine cells while photoreceptor production remains unchanged. These data demonstrate that TGF beta-3 can regulate cell proliferation in the CNS during development and can also influence commitment or differentiation, or both, of neural progenitor cells to particular retinal fates.
- Published
- 1995
- Full Text
- View/download PDF
48. EGF and TGF-alpha stimulate retinal neuroepithelial cell proliferation in vitro.
- Author
-
Anchan RM, Reh TA, Angello J, Balliet A, and Walker M
- Subjects
- Animals, Animals, Newborn, Blotting, Southern, Cell Adhesion Molecules, Neuronal analysis, Cell Division drug effects, Cells, Cultured, DNA Replication drug effects, Epidermal Growth Factor genetics, ErbB Receptors analysis, Fetus, Fluorescent Antibody Technique, Intermediate Filaments drug effects, Intermediate Filaments ultrastructure, Kinetics, Mitosis drug effects, Pigment Epithelium of Eye drug effects, Pigment Epithelium of Eye physiology, Polymerase Chain Reaction methods, RNA genetics, RNA isolation & purification, RNA, Messenger genetics, Rats, Retinal Ganglion Cells drug effects, Retinal Ganglion Cells physiology, Thymidine metabolism, Transforming Growth Factor alpha genetics, Epidermal Growth Factor pharmacology, Pigment Epithelium of Eye cytology, Retinal Ganglion Cells cytology, Transforming Growth Factor alpha pharmacology
- Abstract
Peptide growth factors have been shown to have diverse effects on cells of the CNS, such as promoting neuronal survival, neurite outgrowth, and several other aspects of neuronal differentiation. In addition, some of these factors have been shown to be mitogenic for particular classes of glial cells within the brain and optic nerve, and recently two peptide growth factors, fibroblast growth factor and nerve growth factor, have been shown to have mitogenic activity on the CNS neuronal progenitors. We now report that two members of another peptide growth factor, epidermal growth factor and transforming growth factor-alpha, are mitogenic for retinal neuroepithelial cells in primary cultures and provide evidence for the presence of both of these factors in normal developing rat retina.
- Published
- 1991
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.