114 results on '"Price TM"'
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2. Finasteride for hirsutism.
- Author
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Price TM
- Abstract
There's a new approach to treating hirsutism-but is it any better or even as effective as conventional therapy? An expert assesses the efficacy and risks of finasteride. [ABSTRACT FROM AUTHOR]
- Published
- 1999
3. Interactions of Lactobacilli with pathogenic Streptococcus pyogenes.
- Author
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Westbroek ML, Davis CL, Fawson LS, Price TM, Westbroek, Mark L, Davis, Crystal L, Fawson, Lena S, and Price, Travis M
- Abstract
Objective: To determine whether (1) a decreased concentration of Lactobacilli allows S. pyogenes to grow; (2) S. pyogenes is able to grow in the presence of healthy Lactobacillus concentrations; (3) S. pyogenes is capable of inhibiting Lactobacilli.Methods: One hundred fifty patient samples of S. pyogenes were mixed with four different concentrations of L. crispatus and L. jensenii. Colony counts and pH measurements were taken from these concentrations and compared using t-tests and ANOVA statistical analyses.Results: Statistical tests showed no significant difference between the colony counts of S. pyogenes by itself and growth when mixed with Lactobacilli, and no significant difference between the colony counts of S. pyogenes in the four different concentrations of Lactobacilli.Conclusion: The statistical data representing the growth of these two organisms suggests that Lactobacilli did not inhibit the growth of S. pyogenes. Also, S. pyogenes did not inhibit the growth of Lactobacilli. [ABSTRACT FROM AUTHOR]- Published
- 2010
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4. Differential Gene Regulation of the Human Blastocyst Trophectoderm and Inner Cell Mass by Progesterone.
- Author
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Snow KS, Raburn DJ, and Price TM
- Subjects
- Humans, Receptors, Progesterone metabolism, Receptors, Progesterone genetics, Female, Embryonic Development drug effects, Embryonic Development physiology, Human Embryonic Stem Cells metabolism, Human Embryonic Stem Cells drug effects, Progesterone pharmacology, Blastocyst metabolism, Blastocyst drug effects, Gene Expression Regulation, Developmental, Blastocyst Inner Cell Mass metabolism
- Abstract
Knowledge of action of progesterone (P4) on the human preimplantation embryo is lacking. The objective of this study was to determine expression of a mitochondrial P4 receptor (PR-M) in the trophectoderm (TE) and the inner cell mass (ICM) of the human blastocyst and to determine P4-induced gene expression during growth from the cleavage to the blastocyst stage. Previously cryopreserved cleavage stage embryos were treated with P4 (10
-6 M) or vehicle until blastocyst development. Cells from the TE and the ICM of dissected euploid embryos underwent RNA-seq analysis, while other embryos were used for analysis of nuclear PR (nPR) and PR-M expression.PR-M expression was confirmed in the TE, the ICM, and a human embryonic stem cell line (HESC). Conversely, nPR expression was absent in the TE and the ICM with low expression in the HESC line. RNA-seq analysis revealed P4 effects greater in the TE with 183 significant pathway changes compared to 27 in the ICM. The TE response included significant upregulation of genes associated with DNA replication, cell cycle phase transition and others, exemplified by a 7.6-fold increase in the cell proliferation gene, F-Box Associated Domain Containing. The majority of ICM pathways were downregulated including chromosome separation, centromere complex assembly and chromatin remodeling at centromere. This study confirms that human blastocysts express PR-M in both the TE and the ICM, but lack expression of nPR. P4-induced gene regulation differs greatly in the two cell fractions with the predominant effect of cell proliferation in the TE and not the ICM., (© 2023. The Author(s), under exclusive licence to Society for Reproductive Investigation.)- Published
- 2024
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5. What predicts durable symptom relief of uterine fibroids treated with MRI-guided focused ultrasound? A multicenter trial in 8 academic centers.
- Author
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Bitton RR, Fast A, Vu KN, Lum DA, Chen B, Hesley GK, Raman SS, Matsumoto AH, Price TM, Tempany C, Dhawan N, Dolen E, Kohi M, Fennessey FM, and Ghanouni P
- Subjects
- Female, Humans, Magnetic Resonance Imaging, Prospective Studies, Quality of Life, Treatment Outcome, High-Intensity Focused Ultrasound Ablation methods, Leiomyoma diagnostic imaging, Leiomyoma therapy, Uterine Neoplasms diagnostic imaging, Uterine Neoplasms therapy
- Abstract
Objective: To identify variables predictive of durable clinical success after MRI-guided focused ultrasound (MRgFUS) treatment of uterine fibroids., Materials and Methods: In this prospective, multicenter trial, 99 women with symptomatic uterine fibroids were treated using MRgFUS. Pelvic MRI was obtained at baseline and treatment day. The Uterine Fibroid Symptom-Quality of Life questionnaire was used to calculate a symptom severity score (SSS) at baseline and 6, 12, 24, and 36 months following treatment. Clinical, imaging, and treatment variables were correlated with symptom reduction sustained through the 12- and 24-month time points using univariable and multivariable logistic regression analyses. A novel parameter, the ratio of non-perfused volume to total fibroid load (NPV/TFL), was developed to determine association with durable outcomes., Results: Post-treatment, mean symptom severity decreased at the 6-, 12-, 24-, and 36-month follow-ups (p < 0.001, all time points). In univariable analysis, three variables predicted treatment success (defined by ≥ 30-point improvement in SSS) sustained at both the 12-month and 24-month time points: increasing ratio of NPV/TFL (p = 0.002), decreasing total fibroid load (p = 0.04), and the absence of T2-weighted Funaki type 2 fibroids (p = 0.02). In multivariable analysis, the NPV/TFL was the sole predictor of durable clinical success (p = 0.01). Patients with ratios below 30% had less improvement in SSS and lacked durable clinical response compared with those between 30-79 (p = 0.03) and ≥ 80% (p = 0.01)., Conclusion: Increased non-perfused volume relative to total fibroid volume was significantly associated with durable reduction of symptoms of abnormal uterine bleeding and bulk bother., Clinical Relevance Statement: Patient selection for sustained clinical benefit should emphasize those with likelihood of achieving high ablation ratios, as determined by imaging (e.g., device access, Funaki type) and by considering the total fibroid load, not just the primary symptomatic fibroid., Trial Registration: Clinical trial ID: NCT01285960., Key Points: • Patient selection/treatment approach associated with durable symptom relief in MRI-guided focused ultrasound ablation of uterine fibroids remains unclear. • The ablation ratio, non-perfused volume/total fibroid volume, was positively associated with sustained symptom relief in both bleeding and bulk bother at 1- and 2-year follow-ups. • Selecting patients with imaging features that favor a high ratio of ablation to total fibroid load (including non-targeted fibroids) is the main factor in predicting durability of symptom relief after uterine fibroid treatment., (© 2023. The Author(s), under exclusive licence to European Society of Radiology.)
- Published
- 2023
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6. Reproductive Functions of the Mitochondrial Progesterone Receptor (PR-M).
- Author
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Shaia KL, Harris BS, Selter JH, and Price TM
- Subjects
- Humans, Male, Pregnancy, Female, Animals, Progesterone metabolism, Mitochondria metabolism, Myometrium metabolism, Receptors, Progesterone metabolism, Leiomyoma metabolism
- Abstract
Classic transcriptional regulation by progesterone via the nuclear progesterone receptors A and B (PR-A, PR-B) has been recognized for decades. Less attention has been given to a mitochondrial progesterone receptor (PR-M) responsible for non-nuclear activities. PR-M is derived from the progesterone receptor (PR) gene from an alternate promoter with the cDNA encoding a unique 5' membrane binding domain followed by the same hinge and hormone-binding domain of the nPR. The protein binds to the mitochondrial outer membrane and functions to increase cellular respiration via increased beta-oxidation and oxidative phosphorylation with resulting adenosine triphosphate (ATP) production. Physiologic activities of PR-M have been studied in cardiac function, spermatozoa activation, and myometrial growth, all known to respond to progesterone. Progesterone via PR-M increases cardiomyocyte cellular respiration to meet the metabolic demands of pregnancy with increased contractility. Consequential gene changes associated with PR-M activation include production of proteins for sarcomere development and for fatty acid oxidation. Regarding spermatozoa function, progesterone via PR-M increases cellular energy production necessary for progesterone-dependent hyperactivation. A role of progesterone in myometrial and leiomyomata growth may also be explained by the increase in necessary cellular energy for proliferation. Lastly, the multi-organ increase in cellular respiration may contribute to the progesterone-dependent increase in metabolic rate reflected by an increase in body temperature through compensatory non-shivering thermogenesis. An evolutionary comparison shows PR-M expressed in humans, apes, and Old World monkeys, but the necessary gene sequence is absent in New World monkeys and lower species. The evolutionary advantage to PR-M remains to be defined, but its presence may enhance catabolism to support the extended gestation and brain development found in these primates., (© 2022. The Author(s), under exclusive licence to Society for Reproductive Investigation.)
- Published
- 2023
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7. Augmenting ACL Repair With Suture Tape Improves Knee Laxity: A Biomechanical Study.
- Author
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He J, Kanto R, Fayed AM, Price TM, DiNenna MA, Linde MA, Smolinski P, and van Eck CF
- Abstract
Background: Anterior cruciate ligament (ACL) repair is an alternative to reconstruction; however, suture tape support may be necessary to achieve adequate outcomes., Purposes: To investigate the influence of suture tape augmentation (STA) of proximal ACL repair on knee kinematics and to evaluate the effect of the 2 flexion angles of suture tape fixation., Study Design: Controlled laboratory study., Methods: Fourteen cadaveric knees were tested using a 6 degrees of freedom robotic testing system under anterior tibial (AT) load, simulated pivot-shift (PS) load, and internal rotation (IR) and external rotation loads. Kinematics and in situ tissue forces were evaluated. Knee states tested were (1) ACL intact, (2) ACL cut, (3) ACL repair with suture only, (4) ACL repair with STA fixed at 0° of knee flexion, and (5) ACL repair with STA fixed at 20° of knee flexion., Results: ACL repair alone did not restore the intact ACL AT translation at 0°, 15°, 30°, or 60° of flexion. Adding suture tape to the repair significantly decreased AT translation at 0°, 15°, and 30° of knee flexion but not to the level of the intact ACL. With PS and IR loadings, only ACL repair with STA fixed at 20° of flexion was not significantly different from the intact state at all knee flexion angles. ACL suture repair had significantly lower in situ forces than the intact ACL with AT, PS, and IR loadings. With AT, PS, and IR loadings, adding suture tape significantly increased the in situ force in the repaired ACL at all knee flexion angles to become closer to that of the intact ACL state., Conclusion: For complete proximal ACL tears, suture repair alone did not restore normal knee laxity or normal ACL in situ force. However, adding suture tape to augment the repair resulted in knee laxity closer to that of the intact ACL. STA with fixation at 20° of knee flexion was superior to fixation with the knee in full extension., Clinical Relevance: The study findings suggest that ACL repair with STA fixed at 20° could be considered in the treatment of femoral sided ACL tears in the appropriate patient population., Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: The authors acknowledge the Albert B. Ferguson, Jr, MD, Orthopaedic Fund of The Pittsburgh Foundation. The implants used for this study were provided by Arthrex through a materials transfer agreement with the University of Pittsburgh. J.H. was supported by the program of China Scholarships Council and the National Natural Science Foundation of China (No 81802208). C.F.E. has received grant support from DJO and Zimmer Biomet and education payments from Arthrex and Smith & Nephew. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto., (© The Author(s) 2023.)
- Published
- 2023
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8. Direct-to-consumer fertility testing: utilization and perceived utility among fertility patients and reproductive endocrinologists.
- Author
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Peipert BJ, Harris BS, Selter JH, Ramey-Collier K, Blenden R, Unnithan S, Erkanli A, and Price TM
- Subjects
- Female, Pregnancy, Humans, Fertility, Hormones, Endocrinologists, Infertility
- Abstract
Research Question: What is the utilization of direct-to-consumer fertility tests (DTCFT) among fertility patients? How does the perceived utility of DTCFT differ between patients and reproductive endocrinologists (REI)?, Design: Infertility patients visiting the Duke Fertility Center between December 2020 and December 2021 were sent an electronic invitation to participate in a patient survey. Members of the Society of Reproductive Endocrinology and Infertility were also sent e-mail invitations to participate in the REI survey. DTCFT were defined as tests not ordered by a physician or performed at a physician's office, including calendar methods of ovulation prediction, urinary ovulation prediction kits, basal body temperature (BBT) monitoring, hormone analysis, ovarian reserve testing and semen analysis. Patients and REI were asked how likely they were to recommend a given DTCFT, on a 0-10 Likert scale., Results: In total, 425 patients (response rate 50.5%) and 178 REI (response rate 21.4%) completed the surveys. Patients reported the utilization of calendar methods of ovulation prediction (83.8%), urinary ovulation prediction (78.8%), BBT monitoring (30.8%), hormone analysis (15.3%), semen analysis (10.1%) and ovarian reserve testing (9.2%). REI rated the utility of all DTCFT significantly lower than patients did (average discordance -4.2, P < 0.001), except for urinary ovulation prediction, which REI gave a significantly higher score (discordance +1.0, P < 0.001). Prior pregnancy was significantly associated with home ovulation prediction utilization among patients (adjusted odds ratio 3.21, 95% confidence interval 1.2-9.83)., Conclusions: Methods of ovulation prediction are commonly used by fertility patients. Significant discordance exists in the perceived utility of DTCFT between patients and REI. Patient education and guidelines are needed to better inform individuals considering DTCFT., (Copyright © 2022 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2023
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9. Postoperative Acute Kidney Injury by Age and Sex: A Retrospective Cohort Association Study.
- Author
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Privratsky JR, Fuller M, Raghunathan K, Ohnuma T, Bartz RR, Schroeder R, Price TM, Martinez MR, Sigurdsson MI, Mathis MR, Naik B, and Krishnamoorthy V
- Subjects
- Male, Adult, Humans, Female, Aged, Retrospective Studies, Postoperative Complications epidemiology, Postoperative Complications etiology, Creatinine, Risk Factors, Acute Kidney Injury epidemiology, Acute Kidney Injury etiology, Kidney Failure, Chronic
- Abstract
Background: Acute kidney injury (AKI) after noncardiac surgery is common and has substantial health impact. Preclinical and clinical studies examining the influence of sex on AKI have yielded conflicting results, although they typically do not account for age-related changes. The objective of the study was to determine the association of age and sex groups on postoperative AKI. The authors hypothesized that younger females would display lower risk of postoperative AKI than males of similar age, and the protection would be lost in older females., Methods: This was a multicenter retrospective cohort study across 46 institutions between 2013 and 2019. Participants included adult inpatients without pre-existing end-stage kidney disease undergoing index major noncardiac, nonkidney/urologic surgeries. The authors' primary exposure was age and sex groups defined as females 50 yr or younger, females older than 50 yr, males 50 yr or younger, and males older than 50 yr. The authors' primary outcome was development of AKI by Kidney Disease-Improving Global Outcomes serum creatinine criteria. Exploratory analyses included associations of ascending age groups and hormone replacement therapy home medications with postoperative AKI., Results: Among 390,382 patients, 25,809 (6.6%) developed postoperative AKI (females 50 yr or younger: 2,190 of 58,585 [3.7%]; females older than 50 yr: 9,320 of 14,4047 [6.5%]; males 50 yr or younger: 3,289 of 55,503 [5.9%]; males older than 50 yr: 11,010 of 132,447 [8.3%]). When adjusted for AKI risk factors, compared to females younger than 50 yr (odds ratio, 1), the odds of AKI were higher in females older than 50 yr (odds ratio, 1.51; 95% CI, 1.43 to 1.59), males younger than 50 yr (odds ratio, 1.90; 95% CI, 1.79 to 2.01), and males older than 50 yr (odds ratio, 2.06; 95% CI, 1.96 to 2.17)., Conclusions: Younger females display a lower odds of postoperative AKI that gradually increases with age. These results suggest that age-related changes in women should be further studied as modifiers of postoperative AKI risk after noncardiac surgery., (Copyright © 2022, the American Society of Anesthesiologists. All Rights Reserved.)
- Published
- 2023
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10. Fibroids in pregnancy: a growing or shrinking issue?
- Author
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Selter JH, Price TM, and Harris BS
- Subjects
- Female, Humans, Pregnancy, Pregnancy Outcome, Leiomyoma diagnosis, Leiomyoma epidemiology, Pregnancy Complications, Neoplastic diagnosis, Pregnancy Complications, Neoplastic epidemiology, Pregnancy Complications, Neoplastic therapy, Uterine Neoplasms diagnosis, Uterine Neoplasms epidemiology, Uterine Neoplasms therapy
- Published
- 2022
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11. No Difference in Knee Kinematics Between Anterior Cruciate Ligament-First and Posterior Cruciate Ligament-First Fixation During Single-Stage Multiligament Knee Reconstruction: A Biomechanical Study.
- Author
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Fayed AM, Kanto R, Price TM, DiNenna M, Linde MA, Smolinski P, and van Eck C
- Abstract
Background: For combined reconstruction of both the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL), there is no consensus regarding which graft should be tensioned and fixed first., Purpose: The purpose of this study was to determine which sequence of graft tensioning and fixation better restores normal knee kinematics. The hypothesis was that ACL-first fixation would more closely restore normal knee kinematics, graft force, and the tibiofemoral orientation in the neutral (resting) position compared with PCL-first fixation., Study Design: Controlled laboratory study., Methods: A total of 15 unpaired human cadaveric knees were examined using a robotic testing system under the following 4 conditions: (1) 89.0-N anterior tibial load at different knee angles; (2) 89.0-N posterior tibial load at different knee angles; (3) combined rotational 7.0-N·m valgus and 5.0-N·m internal rotation load (simulated pivot shift) at 0°, 15°, and 30° of flexion; and (4) 5.0-N·m external rotation load at 0°, 15°, and 30° of flexion. The 4 evaluated knee states were (1) intact ACL and PCL (intact), (2) ACL and PCL deficient (deficient), (3) combined anatomic ACL-PCL reconstruction fixing the ACL first (ACL-first), and (4) combined anatomic ACL-PCL reconstruction fixing the PCL first (PCL-first). A 9.0 mm-diameter quadriceps tendon autograft was used for the ACL graft, tensioned with 40.0 N at 30° of flexion. A 9.5 mm-diameter hamstring tendon autograft (gracilis and semitendinosus, quadrupled loop, and augmented with an additional allograft strand if needed), tensioned with 40.0 N at 90° of flexion, was used for the PCL graft., Results: There were no statistically significant differences between ACL-first and PCL-first fixation regarding knee kinematics. ACL-first fixation restored anterior tibial translation to the intact state at all tested knee angles, while PCL-first fixation showed higher anterior tibial translation than the intact state at 90° of flexion (9.05 ± 3.05 and 5.87 ± 2.40 mm, respectively; P = .018). Neither sequence restored posterior tibial translation to the intact state at 30°, 60°, and 90° of flexion. At 15° of flexion, PCL-first fixation restored posterior tibial translation to the intact state, whereas ACL-first fixation did not., Conclusion: There were no differences in knee laxity between ACL-first and PCL-first fixation with the ACL graft fixed at 30° and the PCL graft fixed at 90°., Clinical Relevance: This study showed that there was no evidence to support the use of one tensioning sequence over the other in single-stage multiligament knee reconstruction., Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: Funding was received from the Albert B. Ferguson Jr MD Orthopaedic Fund of the Pittsburgh Foundation. C.E. has received grants from DJO and Zimmer Biomet and education payments from Arthrex and Smith & Nephew. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto., (© The Author(s) 2022.)
- Published
- 2022
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12. Human Chorionic Gonadotropin-A Review of the Literature.
- Author
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Herkert D, Meljen V, Muasher L, Price TM, Kuller JA, and Dotters-Katz S
- Subjects
- Female, Humans, Pregnancy, Chorionic Gonadotropin analysis, Chorionic Gonadotropin physiology
- Abstract
Importance: The measurement of human chorionic gonadotropin (hCG) levels in different body fluids is a commonly utilized tool in obstetrics and gynecology, as well as other fields. It is often one of the first steps in the medical workup of female patients, and the results and interpretation of this test can have significant downstream ramifications. It is essential to understand the uses and limitations of hCG as a testing and therapeutic measure to appropriately evaluate, counsel, and treat patients., Objective: The purpose of this article is to review the current literature on hCG, including its origins, structure, pharmacokinetics, metabolism, and utility in testing and medical treatment., Evidence Acquisition: Original research articles, review articles, and guidelines on hCG use were reviewed., Conclusions and Relevance: While the primary function of hCG is to maintain early pregnancy, testing for hCG demonstrates that this molecule is implicated in a multitude of different processes where results of testing may lead to incorrect conclusions regarding pregnancy status. This could affect patients in a myriad of settings and have profound emotional and financial consequences. In addition, hCG testing may be revealing of alternative pathology, such as malignancy. It is imperative to understand the nuances of the physiology of hCG and testing methods to effectively use and interpret this test for appropriate patient management.
- Published
- 2022
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13. Fibroids and Fertility: A Comparison of Myomectomy and Uterine Artery Embolization on Fertility and Reproductive Outcomes.
- Author
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Zanolli NC, Bishop KC, Kuller JA, Price TM, and Harris BS
- Subjects
- Female, Fertility, Humans, Infant, Newborn, Pregnancy, Treatment Outcome, Leiomyoma surgery, Uterine Artery Embolization, Uterine Myomectomy, Uterine Neoplasms surgery
- Abstract
Importance: Leiomyomata, or fibroids, are a common gynecological problem affecting many women of reproductive age. Historically, myomectomy is offered to women with symptomatic fibroids who desire to preserve fertility. More recently, uterine artery embolization (UAE) has been explored as another fertility-sparing option., Objective: This review aims to provide an in-depth summary of the effects on fertility and reproductive outcomes following myomectomy and UAE for the treatment of symptomatic fibroids., Evidence Acquisition: Articles were obtained from PubMed using search terms myomectomy , uterine artery embolization , and fertility , as well as American Society of Reproductive Medicine practice committee reports. References from identified sources were searched to allow for thorough review., Results: While myomectomy and UAE are both fertility-sparing options for women with fibroids, reproductive outcomes following myomectomy are superior to UAE with higher rates of clinical pregnancy and live births and lower rates of spontaneous abortion, abnormal placentation, preterm labor, and malpresentation., Conclusions: Myomectomy should be offered to women with symptomatic submucosal or cavity-distorting fibroids who have a strong desire for a future pregnancy. For women who are not appropriate surgical candidates, UAE can be offered, although detrimental effects on future fertility should be disclosed., Relevance: A thorough understanding of the efficacy of both myomectomy and UAE, as well as their impact on future fertility, allows for improved counseling when deciding the optimal intervention for women with fibroids who desire future fertility.
- Published
- 2022
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14. Arthroscopic Centralization for Lateral Meniscal Injuries Reduces Laxity in the Anterior Cruciate Ligament-Reconstructed Knee.
- Author
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Nakamura T, Marshall BD, Price TM, Mao Y, Linde MA, Koga H, Smolinski P, and Fu FH
- Subjects
- Anterior Cruciate Ligament, Biomechanical Phenomena, Cadaver, Humans, Knee Joint surgery, Menisci, Tibial, Range of Motion, Articular, Anterior Cruciate Ligament Injuries surgery, Joint Instability surgery
- Abstract
Background: A lateral meniscal (LM) disorder is one factor that causes rotational laxity after anterior cruciate ligament (ACL) reconstruction (ACLR). There are different types of irreparable meniscal disorders, one of which is a massive meniscal defect., Hypothesis/purpose: The purpose of this study was to evaluate the kinematic effects of arthroscopic centralization on an irreparable LM defect. The hypothesis was that arthroscopic centralization for an irreparable LM defect with concomitant ACLR would improve knee rotational stability., Study Design: Controlled laboratory study., Methods: A total of 14 fresh-frozen human cadaveric knees were tested in 4 states: (1) intact ACL and intact lateral meniscus, (2) reconstructed ACL and intact lateral meniscus, (3) reconstructed ACL and lateral meniscus defect, and (4) reconstructed ACL and centralized lateral meniscus. Anatomic ACLR was performed using an 8 mm-diameter hamstring tendon graft. An LM defect (20% of the anteroposterior length) was created arthroscopically, and arthroscopic centralization was performed. Kinematics were analyzed using a 6 degrees of freedom robotic system under 4 knee loads: (1) an 89.0-N anterior tibial load, (2) a 5.0-N·m external rotation tibial torque, (3) a 5.0-N·m internal rotation tibial torque, and (4) a simulated pivot-shift load with a combined 7.0-N·m valgus and 5.0-N·m internal rotation tibial torque., Results: LM centralization reduced anterior tibial translation similar to that of the ACLR intact LM state under anterior tibial loading (~2 mm at 30° of flexion) and showed 40% to 100% of tibial displacement in the 4 knee states under simulated pivot-shift loading. The procedure overconstrained the knee under internal rotation tibial torque and simulated pivot-shift loading., Conclusion: Arthroscopic centralization reduced knee laxity after ACLR for a massive LM defect in a cadaveric model., Clinical Relevance: In cases involving irreparable LM injuries during ACLR, consideration should be given to arthroscopic centralization for reducing knee laxity. However, the procedure may overconstrain the knee in certain motions.
- Published
- 2021
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15. Opposing Epigenetic Signatures in Human Sperm by Intake of Fast Food Versus Healthy Food.
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Soubry A, Murphy SK, Vansant G, He Y, Price TM, and Hoyo C
- Subjects
- Adolescent, Adult, Humans, Male, Young Adult, DNA Methylation, Epigenesis, Genetic, Fast Foods, Genomic Imprinting, Spermatozoa metabolism
- Abstract
Animal experiments have demonstrated that diets high in fats create a harmful environment for developing sperm cells, contributing to impaired reproductive health and induced risk for chronic diseases in the next generation. Changes at the level of the epigenome have been suggested to underlie these observations. Human data are limited to verify this hypothesis. While we earlier demonstrated a link between male obesity and DNA methylation changes at imprinted genes in mature sperm cells and newborns, it is currently unknown if -or how- a paternal eating pattern (related to obesity) is related to indices for epigenetic inheritance. We here aim to examine a yet unexplored link between consumption of healthy (rich in vitamins and fibers) or unhealthy ("fast") foods and methylation at imprint regulatory regions in DNA of sperm. We obtained semen and data from 67 men, as part of a North Carolina-based study: The Influence of the Environment on Gametic Epigenetic Reprogramming (TIEGER) study. Dietary data included intake of fruits/nuts, vegetables/soups, whole grain bread, meat, seafood/fish, and fatty or processed food items. Multiple regression models were used to explore the association between dietary habits and clinical sperm parameters as well as DNA methylation levels, quantified using bisulfite pyrosequencing at 12 differentially methylated regions (DMRs) of the following imprinted genes: GRB10 , IGF2 , H19 , MEG3 , NDN , NNAT , PEG1/MEST, PEG3 , PLAGL1 , SNRPN , and SGCE/PEG10 . After adjusting for age, obesity status and recruitment method, we found that Total Motile Count (TMC) was significantly higher if men consumed fruits/nuts (β=+6.9, SE=1.9, p=0.0005) and vegetables (β=+5.4, SE=1.9, p=0.006), whereas consumption of fries was associated with lower TMC (β=-20.2, SE=8.7, p=0.024). Semen volume was also higher if vegetables or fruits/nuts were frequently consumed (β=+0.06, SE=0.03, p=0.03). Similarly, our sperm epigenetic analyses showed opposing associations for healthy versus fast food items. Frequent consumption of fries was related to a higher chance of sperm being methylated at the MEG3-IG CpG4 site (OR=1.073, 95%CI: 1.035-1.112), and high consumption of vegetables was associated with a lower risk of DNA methylation at the NNAT CpG3 site (OR=0.941, 95%CI: 0.914-0.968). These results remained significant after adjusting for multiple testing. We conclude that dietary habits are linked to sperm epigenetic outcomes. If carried into the next generation paternal unhealthy dietary patterns may result in adverse metabolic conditions and increased risk for chronic diseases in offspring., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Soubry, Murphy, Vansant, He, Price and Hoyo.)
- Published
- 2021
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16. Cycle scheduling with oral contraceptives: Are we compromising rates for convenience?
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Shaia KL and Price TM
- Subjects
- Ethinyl Estradiol, Female, Fertilization in Vitro, Humans, Pregnancy, Contraceptives, Oral adverse effects, Live Birth
- Published
- 2020
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17. Progesterone Increases Mitochondria Membrane Potential in Non-human Primate Oocytes and Embryos.
- Author
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Dai Q, Provost MP, Raburn DJ, and Price TM
- Subjects
- Animals, Blastocyst drug effects, Blastocyst metabolism, Female, Macaca mulatta, Mitochondria drug effects, Mitochondria metabolism, Oocytes metabolism, Pregnancy, Embryonic Development drug effects, Membrane Potential, Mitochondrial drug effects, Oocytes drug effects, Progesterone pharmacology, Receptors, Progesterone metabolism
- Abstract
Mitochondrial activity is critical and correlates with embryo development. The identification of a novel human mitochondrial progesterone receptor (PR-M) that increases cellular respiration brings into question a role for progesterone in oocyte and preimplantation embryo development. Oocytes and embryos were generated from three Rhesus non-human primates (Macaca mulatta) undergoing in vitro fertilization. Immunohistochemical (IHC) staining for the progesterone receptor and mitochondria, RT-PCR with product sequencing for a mitochondrial progesterone receptor, and mitochondrial membrane determination with JC-1 staining were performed. IHC staining with selective antibodies to the progesterone receptor showed non-nuclear staining. Staining was absent in mouse control embryos. RT-PCR with product sequencing demonstrated PR-M transcript in Rhesus oocytes and embryos, which was absent in mouse embryos. Treatment of Rhesus oocytes and embryos with progesterone showed increased mitochondrial membrane potential, which was absent in mouse embryos. Our results support that progesterone increases mitochondrial membrane potential in oocytes and developing embryos. This is likely an in vivo mechanism to support preimplantation embryo development, and brings up the possibility of in vitro manipulation of culture media for optimization of growth.
- Published
- 2020
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18. Academic pursuits in board-certified reproductive endocrinologists.
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Layman LC, Feinberg EC, Hurst BS, Morin SJ, Morris JL, Pisarska MD, Smith YR, and Price TM
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- Biomedical Research education, Certification, Efficiency, Humans, Peer Review, Research, Publishing statistics & numerical data, Specialty Boards, Surveys and Questionnaires, United States, Academic Success, Biomedical Research statistics & numerical data, Endocrinologists education, Endocrinologists standards, Endocrinologists statistics & numerical data, Endocrinology education, Endocrinology standards, Endocrinology statistics & numerical data, Publications statistics & numerical data, Reproductive Medicine education, Reproductive Medicine standards, Reproductive Medicine statistics & numerical data
- Abstract
Objective: To determine research interests of reproductive endocrinology and infertility (REI) physicians and assess their academic productivity., Design: A questionnaire composed by the Society for REI (SREI) board members was e-mailed to members. PubMed was queried to quantify peer-reviewed publications., Setting: An internal SREI questionnaire to members and online publication search., Patient(s): Not applicable., Intervention(s): Questions involving research being performed, funding, relevance to fellow thesis, and important areas of future research. Publications were ascertained in the past 3 years, past 10 years, and total publications for SREI members., Main Outcome Measure(s): Question responses and number of peer-reviewed publications., Result(s): Most respondents currently conduct research, which was predominantly clinical. One-third have current research funding and two-thirds were ever funded. One-third had a National Institutes of Health grant and about half were principal investigators. Two-thirds had a basic science fellow thesis and 44% of respondents perform research related to their fellowship thesis. Important research areas included infertility outcomes, implantation, preimplantation genetic testing, and genetics. In the past 3 years, SREI members published 3,408 peer-reviewed articles (mean ± standard deviation [SD], 4.4 ± 9.0). In the past 10 years, SREI members had 10,162 peer-reviewed publications (mean±SD, 13.0 ± 24.3). When all publications were considered, SREI members published 24,088 peer-reviewed articles (mean±SD, 30.9 ± 53.0)., Conclusion(s): The REI fellows have learned to construct scientific articles, which will help them to better interpret the literature in the care of patients. The SREI members continue to pursue scientific investigation, commonly related to their fellowship thesis. Respondents support SREI funding research; the success of which should be judged by publications. Overall, SREI members have demonstrated significant academic productivity and published about 1,000 articles/year for the past 10 years, affirming the importance of research training., (Copyright © 2019 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
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19. Hormonal management of menopausal symptoms in women with a history of gynecologic malignancy.
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Harris BS, Bishop KC, Kuller JA, Ford AC, Muasher LC, Cantrell SE, and Price TM
- Subjects
- Adult, Cancer Survivors, Contraindications, Drug, Estrogen Replacement Therapy methods, Female, Humans, Middle Aged, Breast Neoplasms physiopathology, Estrogen Replacement Therapy adverse effects, Estrogens therapeutic use, Genital Neoplasms, Female physiopathology, Menopause drug effects
- Abstract
Objective: The aim of the study was to review the role of hormone therapy in menopausal patients with breast cancer and gynecologic malignancies., Methods: We searched MEDLINE (via PubMed) using a combination of keywords and database-specific subject headings for the following concepts: menopause, hormone therapy, and cancer. Editorials, letters, case reports, and comments were excluded, as were non-English articles. Additional references were identified by hand-searching bibliographies of included articles. The searches yielded a total of 1,484 citations. All citations were imported into EndNote X9, where they were screened by the authors., Results: In breast cancer survivors, systemic hormone therapy is not recommended, whereas local low-dose estrogen therapy may be considered after discussion with the patient's oncologist. Among endometrial cancer survivors, hormone therapy is considered safe in low-risk cancers but should be avoided in high-risk subtypes. For survivors of epithelial ovarian cancer and cervical cancer, hormone therapy can be considered, but should be avoided in women with estrogen-sensitive histologic subtypes., Conclusions: The risks of hormone therapy should be assessed on an individual basis, with consideration of age, type of hormone therapy, dose, duration of use, regimen, route, and prior exposure. Systemic hormone therapy is not recommended in breast cancer survivors, whereas vaginal low-dose estrogen appears safe. Hormone therapy may be used by endometrial, cervical, and ovarian cancer survivors with low-risk, non-estrogen-receptor-positive subtypes. Video Summary: http://links.lww.com/MENO/A516.
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- 2020
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20. Emergency front of neck access in airway management.
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Price TM and McCoy EP
- Published
- 2019
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21. FIRSTT study: randomized controlled trial of uterine artery embolization vs focused ultrasound surgery.
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Laughlin-Tommaso S, Barnard EP, AbdElmagied AM, Vaughan LE, Weaver AL, Hesley GK, Woodrum DA, Jacoby VL, Kohi MP, Price TM, Nieves A, Miller MJ, Borah BJ, Moriarty JP, Gorny KR, Leppert PC, Severson AL, Lemens MA, and Stewart EA
- Subjects
- Adult, Female, Follow-Up Studies, Humans, Leiomyoma diagnostic imaging, Middle Aged, Treatment Outcome, Uterine Neoplasms diagnostic imaging, Leiomyoma therapy, Magnetic Resonance Imaging, Interventional, Ultrasonic Therapy methods, Uterine Artery Embolization, Uterine Neoplasms therapy
- Abstract
Background: Uterine leiomyomas (fibroid tumors) cause considerable symptoms in 30-50% of women and are the leading cause of hysterectomy in the United States. Women with uterine fibroid tumors often seek uterine-preserving treatments, but comparative effectiveness trials are lacking., Objective: The purpose of this study was to report treatment effectiveness and ovarian function after uterine artery embolization vs magnetic resonance imaging-guided focused ultrasound surgery from the Fibroid Interventions: Reducing Symptoms Today and Tomorrow study., Study Design: The Fibroid Interventions: Reducing Symptoms Today and Tomorrow study, which is a randomized controlled trial of uterine artery embolization vs magnetic resonance imaging-guided focused ultrasound surgery, enrolled premenopausal women with symptomatic uterine fibroid tumors; women who declined randomization were enrolled in a parallel observational cohort. A comprehensive cohort design was used for outcomes analysis. Our target enrollment was 220 women, of which we achieved 41% (n=91) in the randomized and parallel arms of the trial. Primary outcome was reintervention for uterine fibroid tumors within 36 months. Secondary outcomes were change in serum anti-Müllerian hormone levels and standardized measures of fibroid symptoms, quality of life, pain, and sexual function., Results: From 2010-2014, 83 women (mean age, 44.4 years) were treated in the comprehensive cohort design (43 for magnetic resonance imaging-guided focused ultrasound surgery [27 randomized]; 40 for uterine artery embolization [22 randomized]); baseline clinical and uterine characteristics were similar between treatment arms, except for higher fibroid load in the uterine artery embolization arm. The risk of reintervention was higher with magnetic resonance imaging-guided focused ultrasound surgery than uterine artery embolization (hazard ratio, 2.81; 95% confidence interval, 1.01-7.79). Uterine artery embolization showed a significantly greater absolute decrease in anti-Müllerian hormone levels at 24 months compared with magnetic resonance imaging-guided focused ultrasound surgery. Quality of life and pain scores improved in both arms but to a greater extent in the uterine artery embolization arm. Higher pretreatment anti-Müllerian hormone level and younger age at treatment increased the overall risk of reintervention., Conclusion: Our study demonstrates a lower reintervention rate and greater improvement in symptoms after uterine artery embolization, although some of the effectiveness may come through impairment of ovarian reserve. Both pretreatment anti-Müllerian hormone level and age are associated with risk of reintervention., Clinical Trial Registration Number: NCT00995878, clinicaltrials.gov., (Copyright © 2018 Elsevier Inc. All rights reserved.)
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- 2019
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22. A Mitochondrial Progesterone Receptor Increases Cardiac Beta-Oxidation and Remodeling.
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Dai Q, Likes CE 3rd, Luz AL, Mao L, Yeh JS, Wei Z, Kuchibhatla M, Ilkayeva OR, Koves TR, and Price TM
- Abstract
Progesterone is primarily a pregnancy-related hormone, produced in substantial quantities after ovulation and during gestation. Traditionally known to function via nuclear receptors for transcriptional regulation, there is also evidence of nonnuclear action. A previously identified mitochondrial progesterone receptor (PR-M) increases cellular respiration in cell models. In these studies, we demonstrated that expression of PR-M in rat H9c2 cardiomyocytes resulted in a ligand-dependent increase in oxidative cellular respiration and beta-oxidation. Cardiac expression in a TET-On transgenic mouse resulted in gene expression of myofibril proteins for remodeling and proteins involved in oxidative phosphorylation and fatty acid metabolism. In a model of increased afterload from constant transverse aortic constriction, mice expressing PR-M showed a ligand-dependent preservation of cardiac function. From these observations, we propose that PR-M is responsible for progesterone-induced increases in cellular energy production and cardiac remodeling to meet the physiological demands of pregnancy.
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- 2019
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23. Cannabinoid exposure and altered DNA methylation in rat and human sperm.
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Murphy SK, Itchon-Ramos N, Visco Z, Huang Z, Grenier C, Schrott R, Acharya K, Boudreau MH, Price TM, Raburn DJ, Corcoran DL, Lucas JE, Mitchell JT, McClernon FJ, Cauley M, Hall BJ, Levin ED, and Kollins SH
- Subjects
- Adolescent, Adult, Animals, CpG Islands, Humans, Male, Rats, Rats, Sprague-Dawley, Spermatozoa metabolism, Cannabinoid Receptor Agonists pharmacology, DNA Methylation, Dronabinol pharmacology, Marijuana Abuse genetics, Spermatozoa drug effects
- Abstract
Little is known about the reproductive effects of paternal cannabis exposure. We evaluated associations between cannabis or tetrahydrocannabinol (THC) exposure and altered DNA methylation in sperm from humans and rats, respectively. DNA methylation, measured by reduced representation bisulfite sequencing, differed in the sperm of human users from non-users by at least 10% at 3,979 CpG sites. Pathway analyses indicated Hippo Signaling and Pathways in Cancer as enriched with altered genes (Bonferroni p < 0.02). These same two pathways were also enriched with genes having altered methylation in sperm from THC-exposed versus vehicle-exposed rats (p < 0.01). Data validity is supported by significant correlations between THC exposure levels in humans and methylation for 177 genes, and substantial overlap in THC target genes in rat sperm (this study) and genes previously reported as having altered methylation in the brain of rat offspring born to parents both exposed to THC during adolescence. In humans, cannabis use was also associated with significantly lower sperm concentration. Findings point to possible pre-conception paternal reproductive risks associated with cannabis use.
- Published
- 2018
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24. Periprocedural outcomes comparing fibroid embolization and focused ultrasound: a randomized controlled trial and comprehensive cohort analysis.
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Barnard EP, AbdElmagied AM, Vaughan LE, Weaver AL, Laughlin-Tommaso SK, Hesley GK, Woodrum DA, Jacoby VL, Kohi MP, Price TM, Nieves A, Miller MJ, Borah BJ, Gorny KR, Leppert PC, Peterson LG, and Stewart EA
- Subjects
- Adult, Analgesics, Opioid therapeutic use, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Antiemetics therapeutic use, Cohort Studies, Drug Utilization statistics & numerical data, Female, Humans, Magnetic Resonance Imaging, Interventional, Pain, Postoperative etiology, Pain, Postoperative prevention & control, Recovery of Function, Return to Work statistics & numerical data, Visual Analog Scale, Leiomyoma surgery, Ultrasonic Surgical Procedures, Uterine Artery Embolization, Uterine Neoplasms surgery
- Abstract
Background: Uterine fibroids are a common problem for reproductive-aged women, yet little comparative effectiveness research is available to guide treatment choice. Uterine artery embolization and magnetic resonance imaging-guided focused ultrasound surgery are minimally invasive therapies approved by the US Food and Drug Administration for treating symptomatic uterine fibroids. The Fibroid Interventions: Reducing Symptoms Today and Tomorrow study is the first randomized controlled trial to compare these 2 fibroid treatments., Objective: The objective of the study was to summarize treatment parameters and compare recovery trajectory and adverse events in the first 6 weeks after treatment., Study Design: Premenopausal women with symptomatic uterine fibroids seen at 3 US academic medical centers were enrolled in the randomized controlled trial (n = 57). Women meeting identical criteria who declined randomization but agreed to study participation were enrolled in a nonrandomized parallel cohort (n = 34). The 2 treatment groups were analyzed by using a comprehensive cohort design. All women undergoing focused ultrasound and uterine artery embolization received the same postprocedure prescriptions, instructions, and symptom diaries for comparison of recovery in the first 6 weeks. Return to work and normal activities, medication use, symptoms, and adverse events were captured with postprocedure diaries. Data were analyzed using the Wilcoxon rank sum test or χ
2 test. Multivariable regression was used to adjust for baseline pain levels and fibroid load when comparing opioid medication, adverse events, and recovery time between treatment groups because these factors varied at baseline between groups and could affect outcomes. Adverse events were also collected., Results: Of 83 women in the comprehensive cohort design who underwent treatment, 75 completed postprocedure diaries. Focused ultrasound surgery was a longer procedure than embolization (mean [SD], 405 [146] vs 139 [44] min; P <.001). Of women undergoing focused ultrasound (n = 43), 23 (53%) underwent 2 treatment days. Immediate self-rated postprocedure pain was higher after uterine artery embolization than focused ultrasound (median [interquartile range], 5 [1-7] vs 1 [1-4]; P = .002). Compared with those having focused ultrasound (n = 39), women undergoing embolization (n = 36) were more likely to use outpatient opioid (75% vs 21%; P < .001) and nonsteroidal antiinflammatory medications (97% vs 67%; P < .001) and to have a longer median (interquartile range) recovery time (days off work, 8 [6-14] vs 4 [2-7]; P < .001; days until return to normal, 15 [10-29] vs 10 [10-15]; P = .02). There were no significant differences in the incidence or severity of adverse events between treatment arms; 86% of adverse events (42 of 49) required only observation or nominal treatment, and no events caused permanent sequelae or death. After adjustment for baseline pain and uterine fibroid load, uterine artery embolization was still significantly associated with higher opioid use and longer time to return to work and normal activities (P < .001 for each). Results were similar when restricted to the randomized controlled trial., Conclusion: Women undergoing uterine artery embolization have longer recovery times and use more prescription medications, but women undergoing focused ultrasound have longer treatment times. These findings were independent of baseline pain levels and fibroid load., (Copyright © 2017 Elsevier Inc. All rights reserved.)- Published
- 2017
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25. Human exposure to flame-retardants is associated with aberrant DNA methylation at imprinted genes in sperm.
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Soubry A, Hoyo C, Butt CM, Fieuws S, Price TM, Murphy SK, and Stapleton HM
- Abstract
Emerging evidence suggests that early exposure to endocrine disrupting chemicals has long-term consequences that can influence disease risk in offspring. During gametogenesis, imprinted genes are reasonable epigenetic targets with the ability to retain and transfer environmental messages. We hypothesized that exposures to organophosphate (OP) flame-retardants can alter DNA methylation in human sperm cells affecting offspring's health. Sperm and urine samples were collected from 67 men in North Carolina, USA. Urinary metabolites of a chlorinated OP, tris(1,3-dichloro-2-propyl) phosphate, and two non-chlorinated OPs, triphenyl phosphate and mono-isopropylphenyl diphenyl phosphate, were measured using liquid-chromatography tandem mass-spectrometry. Sperm DNA methylation at multiple CpG sites of the regulatory differentially methylated regions (DMRs) of imprinted genes GRB10 , H19 , IGF2 , MEG3 , NDN , NNAT , PEG1/MEST , PEG3 , PLAGL1 , SNRPN , and SGCE/PEG10 was quantified using bisulfite pyrosequencing. Regression models were used to determine potential associations between OP concentrations and DNA methylation. We found that men with higher concentrations of urinary OP metabolites, known to originate from flame-retardants, have a slightly higher fraction of sperm cells that are aberrantly methylated. After adjusting for age, obesity-status and multiple testing, exposure to mono-isopropylphenyl diphenyl phosphate was significantly related to hypermethylation at the MEG3, NDN, SNRPN DMRs. Exposure to triphenyl phosphate was associated with hypermethylation at the GRB10 DMR; and tris(1,3-dichloro-2-propyl) phosphate exposure was associated with altered methylation at the MEG3 and H19 DMRs. Although measured methylation differences were small, implications for public health can be substantial. Interestingly, our data indicated that a multiplicity of OPs in the human body is associated with increased DNA methylation aberrancies in sperm, compared to exposure to few OPs. Further research is required in larger study populations to determine if our findings can be generalized.
- Published
- 2017
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26. Temporal Trends in Exposure to Organophosphate Flame Retardants in the United States.
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Hoffman K, Butt CM, Webster TF, Preston EV, Hammel SC, Makey C, Lorenzo AM, Cooper EM, Carignan C, Meeker JD, Hauser R, Soubry A, Murphy SK, Price TM, Hoyo C, Mendelsohn E, Congleton J, Daniels JL, and Stapleton HM
- Abstract
During the past decade, use of organophosphate compounds as flame retardants and plasticizers has increased. Numerous studies investigating biomarkers (i.e., urinary metabolites) demonstrate ubiquitous human exposure and suggest that human exposure may be increasing. To formally assess temporal trends, we combined data from 14 U.S. epidemiologic studies for which our laboratory group previously assessed exposure to two commonly used organophosphate compounds, tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) and triphenyl phosphate (TPHP). Using individual-level data and samples collected between 2002 and 2015, we assessed temporal and seasonal trends in urinary bis(1,3-dichloro-2-propyl) phosphate (BDCIPP) and diphenyl phosphate (DPHP), the metabolites of TDCIPP and TPHP, respectively. Data suggest that BDCIPP concentrations have increased dramatically since 2002. Samples collected in 2014 and 2015 had BDCIPP concentrations that were more than 15 times higher than those collected in 2002 and 2003 (10
β = 16.5; 95% confidence interval from 9.64 to 28.3). Our results also demonstrate significant increases in DPHP levels; however, increases were much smaller than for BDCIPP. Additionally, results suggest that exposure varies seasonally, with significantly higher levels of exposure in summer for both TDCIPP and TPHP. Given these increases, more research is needed to determine whether the levels of exposure experienced by the general population are related to adverse health outcomes.- Published
- 2017
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27. Fibroid interventions: reducing symptoms today and tomorrow: extending generalizability by using a comprehensive cohort design with a randomized controlled trial.
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AbdElmagied AM, Vaughan LE, Weaver AL, Laughlin-Tommaso SK, Hesley GK, Woodrum DA, Jacoby VL, Kohi MP, Price TM, Nieves A, Miller MJ, Borah BJ, Gorny KR, Leppert PC, Lemens MA, and Stewart EA
- Subjects
- Adult, Body Mass Index, Cohort Studies, Female, Gravidity, Humans, Pain Measurement, Smoking epidemiology, Leiomyoma therapy, Ultrasonic Therapy, Uterine Artery Embolization, Uterine Neoplasms therapy
- Abstract
Background: Uterine fibroids are an important source of morbidity for reproductive-aged women. Despite an increasing number of alternatives, hysterectomies account for about 75% of all fibroid interventional treatments. Evidence is lacking to help women and their health care providers decide among alternatives to hysterectomy. Fibroid Interventions: Reducing Symptoms Today and Tomorrow (NCT00995878, clinicaltrials.gov) is a randomized controlled trial to compare the safety, efficacy, and economics of 2 minimally invasive alternatives to hysterectomy: uterine artery embolization and magnetic resonance imaging-guided focused ultrasound surgery. Although randomized trials provide the highest level of evidence, they have been difficult to conduct in the United States for interventional fibroid treatments. Thus, contemporaneously recruiting women declining randomization may have value as an alternative strategy for comparative effectiveness research., Objective: We sought to compare baseline characteristics of randomized participants with nonrandomized participants meeting the same enrollment criteria and to determine whether combining the 2 cohorts in a comprehensive cohort design would be useful for analysis., Study Design: Premenopausal women with symptomatic uterine fibroids seeking interventional therapy at 3 US academic medical centers were randomized (1:1) in 2 strata based on calculated uterine volume (<700 and ≥700 cc(3)) to undergo embolization or focused ultrasound surgery. Women who met the same inclusion criteria but declined randomization were offered enrollment in a parallel cohort. Both cohorts were followed up for a maximum of 36 months after treatment. The measures addressed in this report were baseline demographics, symptoms, fibroid and uterine characteristics, and scores on validated quality-of-life measures., Results: Of 723 women screened, 57 were randomized and 49 underwent treatment (27 with focused ultrasound and 22 with embolization). Seven of the 8 women randomized but not treated were assigned to embolization. Of 34 women in the parallel cohort, 16 elected focused ultrasound and 18 elected embolization. Compared with nonrandomized participants, randomized participants had higher mean body mass index (28.7 vs 25.3 kg/m(2); P = .01) and were more likely to be gravid (77% vs 47%; P = .003) and smokers (42% vs 12%; P = .003). Age, race, uterine volume, number of fibroids, and baseline validated measures of general and disease-specific quality of life, pain, depression, and sexual function did not differ between the groups. When we performed a comprehensive cohort analysis and analyzed by treatment arm, the only baseline difference observed was a higher median McGill Pain Score among women undergoing focused ultrasound (10.5 vs 6; P = .03); a similar but nonsignificant trend was seen in visual analog scale scores for pain (median, 39.0 vs 24.0; P = .06)., Conclusion: Using a comprehensive cohort analysis of study data could result in additional power and greater generalizability if results are adjusted for baseline differences., Competing Interests: E.A.S. reports consulting from AbbVie, Bayer, Gynesonics, Astellas, and Viteava Pharmaceuticals related to uterine fibroids; Welltwigs related to infertility; and GlaxoSmithKline related to adenomyosis. G.K.H., K.R.G., T.M.P., and A.N. report grants from InSightec outside the submitted work. A.M.A. reports fellowship funding from the Egyptian Ministry of Higher Education and Scientific Research. P.C.L. reports grants from BioSpecifics Technologies Corp outside the submitted work and a patent pending (Treatment Method and Product for Uterine Fibroids using Purified Collagenase). V.L.J. reports grants from Halt Medical outside the submitted work. L.E.V., A.L.W., S.K.L.-T., D.A.W., M.P.K., M.J.M., B.J.B., and M.A.L. have nothing to disclose., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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28. Practice patterns, satisfaction, and demographics of reproductive endocrinologists: results of the 2014 Society for Reproductive Endocrinology and Infertility Workforce Survey.
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Barnhart KT, Nakajima ST, Puscheck E, Price TM, Baker VL, and Segars J
- Subjects
- Adult, Aged, Aged, 80 and over, Cross-Sectional Studies, Endocrinologists trends, Female, Health Workforce trends, Humans, Infertility epidemiology, Male, Middle Aged, Endocrinologists psychology, Endocrinology trends, Infertility therapy, Personal Satisfaction, Practice Patterns, Physicians' trends, Societies, Medical trends
- Abstract
Objective: To identify the current and future state of the practice of reproductive medicine., Design: Cross-sectional survey., Setting: Not applicable., Patient(s): None., Intervention(s): Not applicable., Main Outcome Measure(s): The survey included 57 questions designed to assess practice patterns/metrics and professional satisfaction and morale., Result(s): A total of 336/1,100 (31%) responded, and they were 38% women, 61% men, and 76% Caucasian, with a mean age of 54. Respondents averaged 2.3 jobs and averaged 53 hours of work per week: 44% work in academia and 50% in private groups. Average practice size was 5.5, with an average of 470 fresh IVF cycles performed per year. Percent effort included 63% infertility, 10% endocrinology, 10% surgery, and 9% research. Respondents performed an average of 13 major surgeries, 69 minor surgeries, and 128 oocyte retrievals per year. A total of 60% were salaried, and 40% were equity partners. Compensation was highly skewed. Greater than 84% had a positive morale and had a positive view of the future, and 92% would again choose REI as a career. The most satisfying areas of employment were patient interactions, intellectual stimulation, interactions with colleagues, and work schedule. The least satisfying areas were work schedule and financial compensation. Training was felt to be too focused on female factor infertility and basic research with insufficient training on embryology, genetics, male factor infertility, and clinical research. In the next 5 years, 57% suggested that the need for specialists would stay the same, while 20% predicted a decrease. A total of 58% felt we are training the correct number of fellows (37% felt we are training a surplus). Compared with academia, those in private practice reported higher compensation, less major surgery, more IVF, less endocrinology, and less research. Men worked more hours, conducted more surgery and IVF cycles, and had higher compensation than women. Morale was similar across age, gender, practice type, and geography., Conclusion(s): Our subspecialty has an extremely high morale. We are a middle-aged subspecialty with disparate compensation and a focused practice. Some respondents sense a need for a change in our training, and most anticipate only mild growth in our field., (Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
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29. The impact of short-term depot-medroxyprogesterone acetate treatment on resting metabolic rate.
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Steward RG, Bateman LA, Slentz C, Stanczyk FZ, and Price TM
- Subjects
- Adolescent, Adult, Body Composition drug effects, Body Mass Index, Body Temperature drug effects, Body Weight drug effects, Calorimetry, Indirect, Cohort Studies, Delayed-Action Preparations, Female, Humans, Injections, Intramuscular, Luteal Phase, Medroxyprogesterone Acetate administration & dosage, Prospective Studies, Thermogenesis drug effects, Basal Metabolism drug effects, Contraceptive Agents, Female, Medroxyprogesterone Acetate adverse effects
- Abstract
Objective: This study examines the effect of a progestogen (depot-medroxyprogesterone acetate, DMPA) on resting metabolic rate (RMR) in a cohort of young, normal-weight healthy women. We hypothesize an increase in RMR and nonshivering thermogenesis (NST) resulting in increased body temperature by DMPA., Study Design: We performed a prospective cohort study in 13 subjects tested at baseline, 3 weeks and 9 weeks after 150 mg intramuscular DMPA administration. RMR was determined with indirect calorimetry. Secondary endpoints included changes in body mass index (BMI), body composition, temperature and serum levels of estradiol (E2), luteinizing hormone (LH), progesterone and MPA., Results: The percent change in RMR from baseline to week 3 (9%) was significantly higher than the percent change from baseline to week 9 (1.6%) (p=.045). The greatest percent change from baseline to week 3 compared to baseline to week 9 was seen in women initiating DMPA in the luteal phase of the cycle. Hypothalamic-pituitary-ovarian axis was evident by decreases in E2, LH and progesterone. DMPA resulted in increased body temperature with a significant correlation between the change in body temperature and the change in RMR. No change in body composition was seen., Conclusions: RMR and NST increased in young healthy women with normal BMI 3 weeks after receiving the initial dose of 150 mg DMPA for contraception. The effect was augmented when the drug was administered during the luteal phase of the menstrual cycle., Implication: DMPA increases RMR and thermogenesis independent of changes in body mass. An increase in weight with chronic DMPA may result from a combination of hyperphagia and abnormal NST in predisposed individuals., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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30. High Peak Estradiol/Mature Oocyte Ratio Predicts Lower Clinical Pregnancy, Ongoing Pregnancy, and Live Birth Rates in GnRH Antagonist Intracytoplasmic Sperm Injection Cycles.
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Sandoval JS, Steward RG, Chen C, Li YJ, Price TM, and Muasher SJ
- Subjects
- Adult, Female, Humans, Pregnancy, Retrospective Studies, Estradiol blood, Gonadotropin-Releasing Hormone antagonists & inhibitors, Oocytes metabolism, Pregnancy Outcome epidemiology, Sperm Injections, Intracytoplasmic statistics & numerical data
- Abstract
Objective: To define the relationship between peak estradiol (E2)/mature oocyte ratio and pregnancy outcomes in gonadotropin-releasing hormone (GnRH) antagonist intracytoplasmic sperm injection (ICSI) cycles., Study Design: Retrospective cohort study in the setting of an academic reproductive medicine practice. Records from 162 fresh, autologous, GnRH antagonist ICSI cycles performed between 2009 and 2012 .were analyzed. The main outcome measures were rates of clinical pregnancy (CPR), ongoing pregnancy (OPR), and live birth (LBR)., Results: For the primary analysis, 4 groups were created based on peak E2/mature oocyte ratio (group 1: <200, group 2: 200-300, group 3: 300-400, and group 4: >400 pg/mL/oocyte). After adjusting for age, basal FSH, and the number of mature oocytes, a significantly lower OPR was seen in group 4 as compared to group I (OR 0.15, 95% CI 0.03-0.86; p=0.032) and group 3 (OR 0.17, 95% CI 0.03-0.98; p=0.048), respectively. The adjusted LBR was also significantly lower in group 4 as compared to group 1 (OR 0.15, 95% CI 0.03-0.83; p=0.030). In a secondary analysis, 3 ranges of peak E2/ mature oocyte ratio (<200, 200-400, and >400 pg/ mL/oocyte) were compared between low, normal, and high responders (<6, 6-15, and >15 mature oocytes, respectively). Clinical pregnancy rate, OPR, and LBR were all lower in normal responders when the E2/oocyte ratio exceeded 400 pg/mL/oocyte as compared to <200 pg/mL/oocyte and 200-300 pg/mL/oocyte (CPR 1% vs. 16% and 32%, respectively, p=0.017; OPR 0 vs. 15% and 27%, respectively, p=0.011; and LBR 0 vs. 13% and 26%, respectively, p=0.018)., Conclusion: Very elevated peak E2/mature oocyte ratio is associated with a lower CPR, OPR, and LBR in fresh, autologous, GnRH antagonist ICSI cycles.
- Published
- 2016
31. High Peak Estradiol Predicts Higher Miscarriage and Lower Live Birth Rates in High Responders Triggered with a GnRH Agonist in IVF/ICSI Cycles.
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Steward RG, Zhang CE, Shah AA, Yeh JS, Chen C, Li YJ, Price TM, and Muasher SJ
- Subjects
- Adult, Cohort Studies, Female, Humans, Live Birth, Pregnancy, Retrospective Studies, Abortion, Spontaneous blood, Estradiol blood, Fertilization in Vitro, Gonadotropin-Releasing Hormone antagonists & inhibitors, Sperm Injections, Intracytoplasmic
- Abstract
Objective: To investigate parameters predictive of pregnancy outcomes in high responders undergoing fresh, autologous, GnRH antagonist IVF/ICSI cycles using a GnRH agonist trigger., Study Design: Retrospective cohort study of all patients deemed high-risk for ovarian hyperstimulation syndrome who underwent fresh, autologous IVF/ICSI using a GnRH agonist trigger at an academic fertility center from 2010-2012., Results: A total of 71 first cycles were analyzed. Rates of clinical pregnancy, live birth (LB), and total (clinical plus biochemical) miscarriage (MC) were 52%, 38%, and 25%, respectively. Mean peak estradiol (E2) and the number of oocytes retrieved were 3,701 pg/mL and 15.2, respectively. Peak E2 was significantly higher in those cycles resulting in clinical MC (p = 0.003). After adjusting for age, basal follicle stimulating hormone, and the number of oocytes retrieved, elevated peak E2 remained associated with increased clinical MC (p = 0.029) and trended towards a relationship with higher total MC (p = 0.062). When peak E2 was treated as a binary variable based on the threshold value of > 5,000 pg/mL, peak E2 above this value was associated with a higher rate of clinical MC (OR = 16.14 with 95% CI 1.25-209.35, p = 0.033) and total MC (OR = 6.81 with 95% CI 1.12-41.54, p = 0.037), as well as a lower LB rate (OR = 0.095 with 95% CI 0.01-0.90, p = 0.041)., Conclusion: Clinicians should recognize most IVF/ICSI patients triggered with a GnRH agonist as inherently in danger of excessively high serum E2 and avoid peak levels > 5,000 pg/mL in order to avoid higher MC and lower LB rates.
- Published
- 2015
32. The Role of a Mitochondrial Progesterone Receptor (PR-M) in Progesterone Action.
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Price TM and Dai Q
- Subjects
- Cell Respiration, Female, Humans, Male, Myometrium metabolism, Spermatozoa metabolism, Mitochondria metabolism, Progesterone metabolism, Receptors, Progesterone metabolism
- Abstract
Historically, progesterone functions to regulate gene expression via two nuclear progesterone receptors (PR-B and PR-A). Yet, actions of progesterone independent of gene regulation have been observed for decades. These are based on progesterone induced cellular events that occur too rapidly to involve gene transcription or in cells lacking active gene transcription such as mature spermatozoa. Understanding of these "nongenomic" effects has been slowed by the lack of identification of specific receptors. Previous discovery of a mitochondrial progesterone receptor, PR-M, has opened up the possibility of direct, ligand-dependent modulation of mitochondrial activity. In this article, we review the current knowledge of PR-M and speculate on possible physiologic and pathophysiologic actions., (Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.)
- Published
- 2015
- Full Text
- View/download PDF
33. Expression of a mitochondrial progesterone receptor in human spermatozoa correlates with a progestin-dependent increase in mitochondrial membrane potential.
- Author
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Tantibhedhyangkul J, Hawkins KC, Dai Q, Mu K, Dunn CN, Miller SE, and Price TM
- Subjects
- Humans, Male, Microscopy, Fluorescence, Microscopy, Immunoelectron, Membrane Potential, Mitochondrial drug effects, Mitochondria metabolism, Progestins pharmacology, Receptors, Progesterone metabolism, Spermatozoa metabolism
- Abstract
The hyperactivation of human spermatozoa necessary for fertilization requires a substantial increase in cellular energy production. The factors responsible for increasing cellular energy remain poorly defined. This article proposes a role for a novel mitochondrial progesterone receptor (PR-M) in modulation of mitochondrial activity. Basic science studies demonstrate a 38 kDa protein with western blot analysis, consistent with PR-M; whereas imaging studies with confocal and immunoelectron microscopy demonstrate a PR on the mitochondria. Treatment with a PR-specific progestin shows increased mitochondrial membrane potential, not related to induction of an acrosome reaction. The increase in mitochondrial membrane potential was inhibited by a specific PR antagonist, but not affected by an inhibitor to the progesterone-dependent Catsper voltage-activated channel. In conclusion, these studies suggest expression of a novel mitochondrial PR in human spermatozoa with a progestin-dependent increase in mitochondrial activity. This mechanism may serve to enhance cellular energy production as the spermatozoa traverse the female genital tract being exposed to increasing concentrations of progesterone., (© 2014 American Society of Andrology and European Academy of Andrology.)
- Published
- 2014
- Full Text
- View/download PDF
34. Oocyte number as a predictor for ovarian hyperstimulation syndrome and live birth: an analysis of 256,381 in vitro fertilization cycles.
- Author
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Steward RG, Lan L, Shah AA, Yeh JS, Price TM, Goldfarb JM, and Muasher SJ
- Subjects
- Adult, Cell Count statistics & numerical data, Cohort Studies, Female, Humans, Incidence, Middle Aged, Oocytes transplantation, Pregnancy, Prognosis, Retrospective Studies, Risk Assessment, United States, Fertilization in Vitro statistics & numerical data, Live Birth epidemiology, Oocyte Retrieval statistics & numerical data, Oocytes pathology, Ovarian Hyperstimulation Syndrome epidemiology, Ovarian Hyperstimulation Syndrome pathology, Registries
- Abstract
Objective: To investigate the association between oocyte number and the rates of ovarian hyperstimulation syndrome (OHSS) and live birth (LB) in fresh autologous in vitro fertilization (IVF) cycles., Design: Retrospective cohort study., Setting: An academic reproductive medicine practice., Patient(s): We analyzed data from 256,381 IVF cycles using the 2008-2010 Society for Assisted Reproductive Technology national registry. Patients were divided into five groups based on retrieved oocyte number., Main Outcome Measure(s): Rates of OHSS and LB were calculated for each group. A generalized estimating equation (GEE) was used to assess differences in OHSS and LB between groups. Receiver operating characteristic (ROC) curves were used to evaluate oocyte number as a predictor of OHSS and LB., Intervention(s): None., Result(s): The LB rate increased up to 15 oocytes, then plateaued (0-5: 17%, 6-10: 31.7%; 11-15: 39.3%; 16-20: 42.7%; 21-25: 43.8%; and >25 oocytes: 41.8%). However, the rate of OHSS became much more clinically significant after 15 oocytes (0-5: 0.09%; 6-10: 0.37%; 11-15: 0.93%; 16-20: 1.67%; 21-25: 3.03%; and >25 oocytes: 6.34%). These trends remained after adjustment with the use of GEE. ROC curves revealed that although oocyte number is not useful in the prediction of LB, 15 retrieved oocytes is the number that best predicts OHSS risk., Conclusion(s): Retrieval of >15 oocytes significantly increases OHSS risk without improving LB rate in fresh autologous IVF cycles. In general, less aggressive stimulation protocols should be considered, especially in high-responders, to optimize outcomes., (Copyright © 2014 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
35. Expression of a mitochondrial progesterone receptor (PR-M) in leiomyomata and association with increased mitochondrial membrane potential.
- Author
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Feng Q, Crochet JR, Dai Q, Leppert PC, and Price TM
- Subjects
- Adult, Female, Humans, Leiomyoma metabolism, Leiomyoma pathology, Membrane Potential, Mitochondrial drug effects, Middle Aged, Mitochondria, Muscle genetics, Myometrium metabolism, Myometrium pathology, Progestins pharmacology, Receptors, Progesterone metabolism, Tumor Cells, Cultured, Uterine Neoplasms metabolism, Uterine Neoplasms pathology, Leiomyoma genetics, Membrane Potential, Mitochondrial genetics, Mitochondria, Muscle metabolism, Receptors, Progesterone genetics, Uterine Neoplasms genetics
- Abstract
Context: Clinical evidence supports a role for progestins in the growth of leiomyomata (fibroids). The mechanism(s) for this is thought to involve gene regulation via the nuclear progesterone receptors. Recently a mitochondrial progesterone receptor (PR-M) has been identified with evidence of a progesterone/progestin-dependent increase in cellular respiration. This observation raises a possible new mechanism whereby progesterone/progestin may affect the growth of fibroids., Objective: The goals of this research were to determine differential expression of PR-M in normal myometrium compared with the edge of a fibroid within the same uterus, to demonstrate a progestin-dependent increase in mitochondria membrane potential using an immortalized human myometrial cell line and to examine mitochondrial membrane potential in transfected cells expressing the complete coding sequence of PR-M., Design: Protein levels of PR-M, PR-B, PR-A, mitochondrial porin, and glyceraldehyde-3-phosphate dehydrogenase were determined in the myometrium and adjacent edge of a fibroid in 10 subjects undergoing hysterectomy for benign indications. Mitochondrial membrane potential was determined by fluorescent emission of 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolecarbocyanide iodine in hTERT-HM cells treated with R5020 and in transfected hTERT-HM cells determined by the fluorescent emission of tetramethylrhodamine methyl ester., Results: Higher levels of PR-M and mitochondrial porin were found in the fibroid edge compared with adjacent myometrium. Progestin increased mitochondrial membrane potential in hTERT-HM cells, which was not affected by a translation inhibitor. This effect was exaggerated in hTERT-HM cells expressing PR-M after transient transfection., Conclusion: These studies suggest a mechanism whereby progesterone/progestin may affect the growth of fibroids by altering mitochondrial activity.
- Published
- 2014
- Full Text
- View/download PDF
36. A truncated progesterone receptor (PR-M) localizes to the mitochondrion and controls cellular respiration.
- Author
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Dai Q, Shah AA, Garde RV, Yonish BA, Zhang L, Medvitz NA, Miller SE, Hansen EL, Dunn CN, and Price TM
- Subjects
- Base Pairing genetics, Blotting, Northern, Cell Line, Tumor, Cell Respiration drug effects, Female, Humans, Mass Spectrometry, Membrane Potential, Mitochondrial drug effects, Mitochondria, Heart drug effects, Mitochondria, Heart ultrastructure, Mitochondrial Membranes metabolism, Mitochondrial Membranes ultrastructure, Mitochondrial Proteins chemistry, Mitochondrial Proteins metabolism, Oxygen metabolism, Peptides chemistry, Peptides metabolism, Progestins pharmacology, Protein Transport drug effects, RNA Interference, RNA, Messenger genetics, RNA, Messenger metabolism, Receptors, Progesterone chemistry, Receptors, Progesterone genetics, Mitochondria, Heart metabolism, Receptors, Progesterone metabolism
- Abstract
The cDNA for a novel truncated progesterone receptor (PR-M) was previously cloned from human adipose and aortic cDNA libraries. The predicted protein sequence contains 16 unique N-terminal amino acids, encoded by a sequence in the distal third intron of the progesterone receptor PR gene, followed by the same amino acid sequence encoded by exons 4 through 8 of the nuclear PR. Thus, PR-M lacks the N terminus A/B domains and the C domain for DNA binding, whereas containing the hinge and hormone-binding domains. In this report, we have localized PR-M to mitochondria using immunofluorescent localization of a PR-M-green fluorescent protein (GFP) fusion protein and in Western blot analyses of purified human heart mitochondrial protein. Removal of the putative N-terminal mitochondrial localization signal obviated association of PR-M with mitochondria, whereas addition of the mitochondrial localization signal to green fluorescent protein resulted in mitochondrial localization. Immunoelectron microscopy and Western blot analysis after mitochondrial fractionation identified PR-M in the outer mitochondrial membrane. Antibody specificity was shown by mass spectrometry identification of a PR peptide in a mitochondrial membrane protein isolation. Cell models of overexpression and gene silencing of PR-M demonstrated a progestin-induced increase in mitochondrial membrane potential and an increase in oxygen consumption consistent with an increase in cellular respiration. This is the first example of a truncated steroid receptor, lacking a DNA-binding domain that localizes to the mitochondrion and initiates direct non-nuclear progesterone action. We hypothesize that progesterone may directly affect cellular energy production to meet the increased metabolic demands of pregnancy.
- Published
- 2013
- Full Text
- View/download PDF
37. Hyperglycosylated human chorionic gonadotropin does not increase progesterone production by luteinized granulosa cells.
- Author
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Crochet JR, Shah AA, Schomberg DW, and Price TM
- Subjects
- Adult, Cells, Cultured, Dose-Response Relationship, Drug, Enzyme-Linked Immunosorbent Assay, Female, Fluorometry, Glycosylation, Humans, Isomerism, Luteal Cells drug effects, Oocytes drug effects, Oocytes metabolism, Chorionic Gonadotropin chemistry, Chorionic Gonadotropin pharmacology, Luteal Cells metabolism, Luteinization physiology, Progesterone biosynthesis
- Abstract
Context: Trophoblast-derived human chorionic gonadotropin (hCG) promotes corpus luteum progesterone (P4) production, and wide ranges of serum P4 levels are noted in various pregnancy outcomes, despite similar hCG concentrations. There are five unique biologically active hCG variants in human pregnancy urine, and previous studies of P4 production in response to hCG have used only preparations containing all isoforms. Understanding exactly which hCG variant is primarily responsible for stimulating corpus luteum steroidogenesis may have great clinical and diagnostic implications, including in the setting of ectopic pregnancy., Objective: Our objective was to delineate the role of the standard and hyperglycosylated (H)-hCG isoforms in stimulating P4 production by luteinized granulosa cells., Design and Setting: Cell culture, ELISA, and fluorometric-based protein assays were done at Duke University Medical Center., Patients: Patients were anonymous oocyte donors., Intervention: Cultured luteinized granulosa cells were treated with 0.25, 0.5, and 1.0 ng/ml total hCG, which contains all isoforms, purified standard hCG (37.1 kDa), and purified H-hCG (42.8 kDa)., Main Outcome Measure: P4 produced per total cellular protein (nanograms per microgram) was measured via ELISA and fluorometric protein determination kits., Results: Both total hCG (P = 0.0003) and purified standard hCG (P < 0.0001) stimulated a dose-dependent increase in P4 production. Purified H-hCG did not change the P4 produced per total cellular protein response (P value not significant)., Conclusions: Standard hCG stimulated P4 production by cultured granulosa cells and likely supports corpus luteum function via interactions with the LH/hCG receptor. In contrast, H-hCG did not increase P4 production, which indicates a nonsteroidogenic role for this protein during early gestation.
- Published
- 2012
- Full Text
- View/download PDF
38. Management of gynecologic surgery in the patient with factor XI deficiency: a review of the literature.
- Author
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Steward RG, Saleh OA, James AH, Shah AA, and Price TM
- Subjects
- Antifibrinolytic Agents therapeutic use, Deamino Arginine Vasopressin therapeutic use, Factor VIIa therapeutic use, Factor XI therapeutic use, Female, Hemostasis, Hemostatics therapeutic use, Humans, Plasma, Postoperative Hemorrhage etiology, Pregnancy, Pregnancy Complications, Hematologic drug therapy, Recombinant Proteins therapeutic use, Blood Loss, Surgical prevention & control, Factor XI Deficiency complications, Gynecologic Surgical Procedures, Postoperative Hemorrhage prevention & control
- Abstract
Unlabelled: Factor XI deficiency is a rare bleeding disorder that is more commonly found in Ashkenazi Jews. Bleeding manifestations of this disorder are varied and poorly correlate with factor XI levels. Spontaneous bleeding is uncommon, whereas delayed postoperative bleeding is often the presentation of factor XI deficiency. To date, there are no standard recommendations for prophylactic treatment in women undergoing gynecologic surgery. Here, we review published cases of gynecological surgery in women with factor XI deficiency and discuss the risks and benefits of various therapeutic options., Target Audience: Obstetricians And Gynecologists., Learning Objectives: After participating in this activity, physicians should be better able to identify the pathophysiology of factor XI deficiency. Compare previous outcomes of prophylactic treatment in patients with factor XI deficiency undergoing gynecological surgery. Implement possible prophylactic therapies for patients with factor XI deficiency undergoing gynecological surgery.
- Published
- 2012
- Full Text
- View/download PDF
39. Spontaneous pregnancy reaches viability after low first trimester serum progesterone: a case report.
- Author
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Crochet JR, Peavey MC, Price TM, and Behera MA
- Subjects
- Female, Humans, Middle Aged, Pregnancy, Pregnancy Trimester, First, Fetal Viability, Prenatal Diagnosis, Progesterone blood
- Abstract
Background: Progesterone is produced by the corpus luteum until completion of the luteal-placental shift at approximately 6-10 weeks following last menstruation. Studies have shown that first trimester progesterone levels are predictive of pregnancy viability, and some authors support a level of 5 ng/mL as an absolute threshold to indicate viability., Case: A 47-year-old woman with recurrent pregnancy loss was noted to have a very low first trimester progesterone level (1.2 ng/mL), but the pregnancy progressed to viability. She unfortunately delivered an intrauterine fetal demise at 27 weeks and 3 days' gestation., Conclusion: A single serum progesterone level of < 5 ng/mL is suggestive, but not diagnostic, of a nonviable pregnancy. Routine uterine curettage during the evaluation of a pregnancy of unknown location using this level as an absolute cutoff may result in the interruption of a desired, viable pregnancy.
- Published
- 2012
40. Novel retrotransposed imprinted locus identified at human 6p25.
- Author
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Zhang A, Skaar DA, Li Y, Huang D, Price TM, Murphy SK, and Jirtle RL
- Subjects
- Animals, DNA Methylation, Genetic Loci, Humans, Male, Mice, Neoplasms, Germ Cell and Embryonal genetics, Phylogeny, Proteins, RNA, Antisense analysis, RNA, Messenger metabolism, Testicular Neoplasms genetics, Xenopus Proteins metabolism, Chromosomes, Human, Pair 6, Genomic Imprinting, Retroelements, Xenopus Proteins genetics
- Abstract
Differentially methylated regions (DMRs) are stable epigenetic features within or in proximity to imprinted genes. We used this feature to identify candidate human imprinted loci by quantitative DNA methylation analysis. We discovered a unique DMR at the 5'-end of FAM50B at 6p25.2. We determined that sense transcripts originating from the FAM50B locus are expressed from the paternal allele in all human tissues investigated except for ovary, in which expression is biallelic. Furthermore, an antisense transcript, FAM50B-AS, was identified to be monoallelically expressed from the paternal allele in a variety of tissues. Comparative phylogenetic analysis showed that FAM50B orthologs are absent in chicken and platypus, but are present and biallelically expressed in opossum and mouse. These findings indicate that FAM50B originated in Therians after divergence from Prototherians via retrotransposition of a gene on the X chromosome. Moreover, our data are consistent with acquisition of imprinting during Eutherian evolution after divergence of Glires from the Euarchonta mammals. FAM50B expression is deregulated in testicular germ cell tumors, and loss of imprinting occurs frequently in testicular seminomas, suggesting an important role for FAM50B in spermatogenesis and tumorigenesis. These results also underscore the importance of accounting for parental origin in understanding the mechanism of 6p25-related diseases.
- Published
- 2011
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41. Absence of mitochondrial progesterone receptor polymorphisms in women with spontaneous preterm birth.
- Author
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Manuck TA, Price TM, Thom E, Meis PJ, Dombrowski MP, Sibai B, Spong CY, Rouse DJ, Iams JD, Simhan HN, O'Sullivan MJ, Miodovnik M, Leveno KJ, Conway D, Wapner RJ, Carpenter M, Mercer B, Ramin SM, Thorp JM, and Peaceman AM
- Subjects
- Amino Acid Sequence, DNA, Mitochondrial chemistry, DNA, Mitochondrial genetics, Female, Humans, Molecular Sequence Data, Polymerase Chain Reaction, Pregnancy, Prospective Studies, Sequence Analysis, DNA, Genetic Variation genetics, Polymorphism, Genetic genetics, Premature Birth genetics, Receptors, Progesterone genetics
- Abstract
Objective: The truncated mitochondrial progesterone receptor (PR-M) is homologous to nuclear PRs with the exception of an amino terminus hydrophobic membrane localization sequence, which localizes PR-M to mitochondria. Given the matrilineal inheritance of both spontaneous preterm birth (SPTB) and the mitochondrial genome, we hypothesized that (a) PR-M is polymorphic and (b) PR-M localization sequence polymorphisms could result in variable progesterone-mitochondrial effects and variable responsiveness to progesterone prophylaxis., Methods: Secondary analysis of DNA from women enrolled in a multicenter, prospective, study of 17 alpha-hydroxyprogesterone caproate (17OHPC) versus placebo for the prevention of recurrent SPTB. DNA was extracted from stored saliva., Results: The PR-M localization sequence was sequenced on 344 patients. Sequences were compared with the previously published 48 base-pair sequence, and all were identical., Conclusions: We did not detect genetic variation in the mitochondrial localization sequence of the truncated PR-M in a group of women at high risk for SPTB.
- Published
- 2010
- Full Text
- View/download PDF
42. Modulation of ATP-induced calcium signaling by progesterone in T47D-Y breast cancer cells.
- Author
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Lee KL, Dai Q, Hansen EL, Saner CN, and Price TM
- Subjects
- Blotting, Western, Calcium Signaling physiology, Cell Fractionation, Cell Line, Tumor, Cell Nucleus metabolism, Cells, Cultured, Dose-Response Relationship, Drug, Drug Interactions, Extracellular Signal-Regulated MAP Kinases metabolism, Humans, MAP Kinase Signaling System drug effects, MAP Kinase Signaling System physiology, Phosphorylation, Progestins pharmacology, Receptors, Progesterone metabolism, Receptors, Purinergic P2 metabolism, Adenosine Triphosphate pharmacology, Calcium metabolism, Calcium Signaling drug effects, Progesterone pharmacology
- Abstract
Extracellular ATP activates purinergic (P(2)) receptors with an increase in intracellular calcium and phosphorylation of MAPK. In this study we have investigated the effect of progesterone/progestin on ATP-induced calcium mobilization and phosphorylation of the kinase ERK in the T47D-Y breast cancer cell line that exhibits no detectable nuclear progesterone receptor expression. Brief pretreatment with progesterone/progestin results in a dose dependent inhibition of ATP-induced intracellular calcium mobilization, and inhibition of ERK phosphorylation. Response to a cell impermeable ligand and inhibition of the response by an inactivating antibody suggests a mechanism of action at the plasma membrane. These results in T47D-Y cells strongly suggest that progesterone can act in a rapid non-nuclear manner to inhibit extracellular ATP effects on intracellular calcium mobilization and ERK activation. This research provides an example of progesterone action in a breast cancer cell line lacking expression of the classical nuclear progesterone receptors., (Copyright 2010 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2010
- Full Text
- View/download PDF
43. Implanted estrogen pellets associated with hypertriglyceridemia, biliary dyskinesia and focal nodular hyperplasia of the liver: a case report.
- Author
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Forman EJ, Guyton JR, Filip SJ, and Price TM
- Subjects
- Biliary Dyskinesia blood, Drug Implants, Estradiol administration & dosage, Estradiol adverse effects, Estradiol blood, Estrogens administration & dosage, Estrogens adverse effects, Female, Focal Nodular Hyperplasia blood, Humans, Hypertriglyceridemia blood, Middle Aged, Self Disclosure, Testosterone administration & dosage, Testosterone adverse effects, Testosterone blood, Biliary Dyskinesia chemically induced, Estrogen Replacement Therapy adverse effects, Estrogens blood, Focal Nodular Hyperplasia chemically induced, Hypertriglyceridemia chemically induced
- Abstract
Background: Bioidentical hormones, including implanted estradiol-17beta pellets, have received considerable interest in the lay media. It is thought that parenteral estrogens have fewer gastrointestinal side effects than oral products., Case: A 46-year-old woman in surgical menopause was transferred due to persistent abdominal pain and nausea after cholecystectomy in the setting of long-term hyperestrogenemia. She denied recent use of hormone therapy. Significant findings included biliary dyskinesia, hypertriglyceridemia and focal nodular hyperplasia of the liver with fatty infiltration. Laboratory findings were significant for hyperestrogenemia with markedly suppressed gonadotropin levels and undetectable inhibin level. The patient eventually disclosed receiving serial implants of estradiol-17beta and testosterone pellets by another provider., Conclusion: Serum levels from hormone pellets are unpredictable and can remain elevated for years. Lack of standardized dosing parameters for this nonregulated product likely contributes to the chance of hyperestrogenemia. Despite bypassing first-pass metabolism, supraphysiologic levels of these hormones can cause significant metabolic and gastrointestinal impairments.
- Published
- 2010
44. Progesterone stimulates mitochondrial activity with subsequent inhibition of apoptosis in MCF-10A benign breast epithelial cells.
- Author
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Behera MA, Dai Q, Garde R, Saner C, Jungheim E, and Price TM
- Subjects
- Adenosine Triphosphate biosynthesis, Caspases metabolism, Cell Line, Tumor, Cycloheximide pharmacology, Female, Flow Cytometry, Humans, Inhibitor of Differentiation Protein 1 pharmacology, Kallikreins biosynthesis, Male, Matrix Metalloproteinases metabolism, Membrane Potential, Mitochondrial drug effects, Oxygen Consumption drug effects, Protein Synthesis Inhibitors pharmacology, Real-Time Polymerase Chain Reaction, Receptors, Progesterone metabolism, Transforming Growth Factor beta1 antagonists & inhibitors, Transforming Growth Factor beta1 pharmacology, fas Receptor physiology, Apoptosis drug effects, Breast Neoplasms pathology, Epithelial Cells drug effects, Epithelial Cells metabolism, Mitochondria drug effects, Mitochondria metabolism, Progesterone pharmacology
- Abstract
The effects of progesterone on breast epithelial cells remain poorly defined with observations showing both proliferative and antiproliferative effects. As an example, progesterone levels correlate with increased epithelial cell proliferation, but there is discordance between the dividing cells and the cells with nuclear progesterone receptor expression. The release of paracrine growth factors from nuclear receptor-positive cells has been postulated as a mechanism, since in vitro studies show a lack of growth effect by progesterone in breast epithelial cells lacking nuclear receptors. This study examined possible nongenomic effects of progesterone in breast epithelia by using MCF-10A cells known to lack nuclear progesterone receptor expression. Treatment for 30-60 min with progesterone or the progestin, R5020, increased mitochondrial activity as shown by an increase in mitochondrial membrane potential (hyperpolarization) with a concordant increase in total cellular ATP. The reaction was inhibited by a specific progesterone receptor antagonist and not affected by the translation inhibitor cycloheximide. Progestin treatment inhibited apoptosis induced by activation of the FasL pathway, as shown by a decrease in sub-G(1) cell fraction during fluorescence-activated cell sorting and a decrease in caspase 3/7 levels. Progestin treatment did not alter the cell cycle over 48 h. Our study demonstrates a nongenomic action of progesterone on benign breast epithelial cells, resulting in enhanced cellular respiration and protection from apoptosis.
- Published
- 2009
- Full Text
- View/download PDF
45. Early polycystic ovary syndrome as a possible etiology of unexplained premenarcheal ovarian torsion.
- Author
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Shah AA, Likes CE, and Price TM
- Subjects
- Adult, Child, Female, Humans, Ovarian Diseases surgery, Ovariectomy, Retrospective Studies, Torsion Abnormality surgery, Ovarian Diseases etiology, Polycystic Ovary Syndrome complications, Polycystic Ovary Syndrome diagnosis, Torsion Abnormality etiology
- Abstract
Study Objective: To study evidence of polycystic ovary syndrome (PCOS) in premenarcheal adolescents with unexplained ovarian torsion., Design: Retrospective observational case series., Setting: Tertiary university clinical center, Participants: Six premenarcheal adolescents and six adults with acute ovarian torsion, Intervention: A chart review., Main Outcome Measures: Contralateral ovarian size, operative findings, ovarian pathology, hormone testing, Results: Five of the six premenarcheal cases had no pathologic explanation for their ovarian torsion. In four of the cases, size measurements of the contralateral ovary were noted to be larger than the criterion of their respective age group. Three of the four cases had either an ovarian volume (28.5 cm(3)) or an area (16.0 cm(2) and 57.6 cm(2)) that was above the size criterion for a polycystic ovary (volume >10 cm(3) or area>5.5 cm(2)). Pathology of a wedge biopsy of one of the contralateral ovaries suggested evidence of polycystic ovary. Finally, hormone testing available in three of the cases revealed elevated testosterone levels in two. Among the adults, half of the cases had a pathologic explanation for ovarian torsion. One out of the five cases had a contralateral ovary that was significantly enlarged and this was noted in a woman with a diagnosis of PCOS. The remaining two cases had extensive necrosis of the torsed ovary and no other diagnosis was made., Conclusion: We propose that premenarcheal girls presenting with ovarian torsion, without obvious ovarian pathology, be screened for ultrasound and biochemical evidence of PCOS. In those with evidence of PCOS, treatment with oral contraceptives should be considered taking into account the age and pubertal development, to decrease ovarian volume.
- Published
- 2009
- Full Text
- View/download PDF
46. A case of female epispadias.
- Author
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Tantibhedhyangkul J, Copland SD, Haqq AM, and Price TM
- Subjects
- Adolescent, Amenorrhea etiology, Epispadias complications, Epispadias surgery, Female, Humans, Hyperandrogenism etiology, Hypertrophy, Urethra surgery, Urinary Incontinence etiology, Vulva surgery, Weight Gain, Epispadias diagnosis, Urethra abnormalities, Vulva abnormalities
- Abstract
Objective: To present a case of unrecognized female epispadias., Design: Case report., Setting: University-based reproductive endocrinology and fertility clinic., Patient(s): A 16-year-old girl with epispadias, history of mild urinary incontinence, auditory neuropathy, and functional hyperandrogenism., Intervention(s): None., Main Outcome Measure(s): Peripheral blood array-based comparative genomic hybridization., Result(s): The patient was referred for evaluation of excessive weight gain, secondary amenorrhea, and abnormal external genitalia. Examination under anesthesia revealed bilateral labia minora hypertrophy, bifid clitoris, and a patulous urethra, consistent with female epispadias. Hormonal evaluation showed functional hyperandrogenism, and peripheral blood array-based comparative genomic hybridization showed no chromosomal deletions or duplications., Conclusion(s): Female epispadias is a rare abnormality, not commonly recognized by most practitioners. The diagnosis is supported by a history of urinary incontinence and physical findings of bifid clitoris and patulous urethra. The condition can have serious physical and psychological consequences leading to a gross disruption of social function.
- Published
- 2008
- Full Text
- View/download PDF
47. Effectiveness of assisted reproductive technology (ART).
- Author
-
Myers ER, McCrory DC, Mills AA, Price TM, Swamy GK, Tantibhedhyangkul J, Wu JM, and Matchar DB
- Subjects
- Embryo Transfer, Female, Fertilization in Vitro, Humans, Infant, Infant, Newborn, Insemination, Artificial, Male, Oocyte Retrieval, Ovulation Induction, Pregnancy, Pregnancy Outcome, Premature Birth, Sperm Injections, Intracytoplasmic, Superovulation, Reproductive Techniques, Assisted
- Abstract
Objectives: We reviewed the evidence regarding the outcomes of interventions used in ovulation induction, superovulation, and in vitro fertilization (IVF) for the treatment of infertility. Short-term outcomes included pregnancy, live birth, multiple gestation, and complications. Long-term outcomes included pregnancy and post-pregnancy complications for both mothers and infants., Data Sources: MEDLINE and Cochrane Collaboration resources., Review Methods: We included studies published in English from January 2000 through January 2008. For short-term outcomes, we excluded non-randomized studies and studies where a pregnancy or live birth rate per subject could not be calculated. For long-term outcomes, we excluded studies with fewer than 100 subjects and those without a control group. Articles were abstracted for relevant details, and relative risks or odds ratios, with 95 percent confidence intervals, were calculated for outcomes of interest for each study., Results: We identified 5294 abstracts and (for the three questions discussed in this draft report) reviewed 1210 full-text articles and included 478 articles for abstraction. Approximately 80 percent of the included studies were performed outside the United States. The majority of randomized trials were not designed to detect differences in pregnancy and live birth rates; reporting of delivery rates and obstetric outcomes was unusual. Most did not have sufficient power to detect clinically meaningful differences in live birth rates, and had still lower power to detect differences in less frequent outcomes such as multiple births and complications. Interventions for which there was sufficient evidence to demonstrate improved pregnancy or live birth rates included: (a) administration of clomiphene citrate in women with polycystic ovarian syndrome, (b) metformin plus clomiphene in women who fail to respond to clomiphene alone; (c) ultrasound-guided embryo transfer, and transfer on day 5 post-fertilization, in couples with a good prognosis; and (d) assisted hatching in couples with previous IVF failure. There was insufficient evidence regarding other interventions. Infertility itself is associated with most of the adverse longer-term outcomes. Consistently, infants born after infertility treatments are at risk for complications associated with abnormal implantation or placentation; the degree to which this is due to the underlying infertility, treatment, or both is unclear. Infertility, but not infertility treatment, is associated with an increased risk of breast and ovarian cancer., Conclusions: Despite the large emotional and economic burden resulting from infertility, there is relatively little high-quality evidence to support the choice of specific interventions. Removing barriers to conducting appropriately designed studies should be a major policy goal.
- Published
- 2008
48. Uterine leiomyoma in a 14-year-old girl.
- Author
-
Diesen DL, Price TM, and Skinner MA
- Subjects
- Adolescent, Female, Humans, Leiomyoma surgery, Uterine Neoplasms surgery, Leiomyoma diagnosis, Uterine Neoplasms diagnosis
- Abstract
Uterine leiomyomas are common benign tumors of the uterus in adult females but are rare in adolescents. This is a review of the literature and a case report of a 14-year-old female who presented with increasing, intermittent back pain and abdominal distention due to a large uterine leiomyoma treated by myomectomy. This is the 9th reported case of a uterine leiomyoma in an adolescent female under the age of 18 years in the English literature.
- Published
- 2008
- Full Text
- View/download PDF
49. Simple vaginal mold for use in the postoperative care of patients with a transverse vaginal septum.
- Author
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Lacy J, Correll GR, Walmer DK, and Price TM
- Subjects
- Female, Humans, Postoperative Care methods, Stents, Postoperative Care instrumentation, Prostheses and Implants, Vagina abnormalities, Vagina surgery
- Abstract
Severe vaginal stenosis is a potentially disabling complication of transverse vaginal septum resection due to the constriction of the resulting circular scar. We describe a vaginal mold that can be easily created by an occupational therapist, and used as a long-term stent of the vagina in young girls.
- Published
- 2007
- Full Text
- View/download PDF
50. Actions of steroids in mitochondria.
- Author
-
Gavrilova-Jordan LP and Price TM
- Subjects
- Animals, Apoptosis, Energy Metabolism, Estrogens metabolism, Humans, Mitochondria physiology, Mitochondrial Proteins genetics, Mitochondrial Proteins metabolism, Oxidative Phosphorylation, Progesterone metabolism, Receptors, Androgen metabolism, Receptors, Estrogen metabolism, Receptors, Glucocorticoid metabolism, Receptors, Progesterone metabolism, Signal Transduction, Transcription, Genetic, Androgens metabolism, Glucocorticoids metabolism, Gonadal Steroid Hormones metabolism, Mitochondria metabolism, Receptors, Steroid metabolism
- Abstract
Investigations of indirect and direct actions of steroids on the mitochondria are relatively new areas of research. In this review we provide brief background information regarding mitochondrial structure and function and then focus upon interactions of glucocorticoid, estrogen, androgen, and progesterone receptors with mitochondria. We evaluate the current evidence for steroid receptor localization in the mitochondria based on techniques of Western blot analysis, immunocytochemistry, electron microscopy, and mass spectrometry. Steroid receptor-dependent interactions with mitochondria may include transcriptional regulation of nuclear DNA-encoded mitochondrial proteins, transcriptional regulation of mitochondrial DNA-encoded proteins, or indirect effects on mitochondria due to interactions with cytoplasmic signaling peptides and non-genomic control of cation fluxes. These interactions may play a role in mitochondrial-dependent processes of oxidative phosphorylation and apoptosis. Physiological examples of these interactions are discussed.
- Published
- 2007
- Full Text
- View/download PDF
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