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1.
Environ Sci Technol ; 58(13): 5685-5694, 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-38502775

RESUMEN

Previous studies have examined the predictors of PFAS concentrations among pregnant women and children. However, no study has explored the predictors of preconception PFAS concentrations among couples in the United States. This study included 572 females and 279 males (249 couples) who attended a U.S. fertility clinic between 2005 and 2019. Questionnaire information on demographics, reproductive history, and lifestyles and serum samples quantified for PFAS concentrations were collected at study enrollment. We examined the PFAS distribution and correlation within couples. We used Ridge regressions to predict the serum concentration of each PFAS in females and males using data of (1) socio-demographic and reproductive history, (2) diet, (3) behavioral factors, and (4) all factors included in (1) to (3) after accounting for temporal exposure trends. We used general linear models for univariate association of each factor with the PFAS concentration. We found moderate to high correlations for PFAS concentrations within couples. Among all examined factors, diet explained more of the variation in PFAS concentrations (1-48%), while behavioral factors explained the least (0-4%). Individuals reporting White race, with a higher body mass index, and nulliparous women had higher PFAS concentrations than others. Fish and shellfish consumption was positively associated with PFAS concentrations among both females and males, while intake of beans (females), peas (male), kale (females), and tortilla (both) was inversely associated with PFAS concentrations. Our findings provide important data for identifying sources of couples' PFAS exposure and informing interventions to reduce PFAS exposure in the preconception period.


Asunto(s)
Ácidos Alcanesulfónicos , Contaminantes Ambientales , Fluorocarburos , Niño , Animales , Humanos , Masculino , Femenino , Embarazo , Estados Unidos , Clínicas de Fertilidad , Dieta , Modelos Lineales
2.
Environ Sci Technol ; 58(6): 2683-2692, 2024 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-38290209

RESUMEN

Prenatal per and polyfluoroalkyl substances (PFAS) exposure is associated with adverse birth outcomes. There is an absence of evidence on the relationship between maternal and paternal preconception PFAS exposure and birth outcomes. This study included 312 mothers and 145 fathers with a singleton live birth from a preconception cohort of subfertile couples seeking fertility treatment at a U.S. clinic. PFAS were quantified in serum samples collected before conception. Gestational age (GA) and birthweight (BW) were abstracted from delivery records. We also assessed low birthweight (BW < 2500 g) and preterm birth (GA < 37 completed weeks). We utilized multivariable linear regression, logistic regression, and quantile-based g computation to examine maternal or paternal serum concentrations of individual PFAS and mixture with birth outcomes. Maternal serum concentrations of perfluorooctanesulfonate (PFOS), perfluorohexanesulfonate (PFHxS), and the total PFAS mixture were inversely associated with birthweight. Maternal PFOS concentration was associated with a higher risk of low birthweight. Conversely, paternal PFOS and PFHxS concentrations were imprecisely associated with higher birthweight. No associations were found for gestational age or preterm birth. The findings have important implications for preconception care. Future research with larger sample sizes would assist in validating these findings.


Asunto(s)
Ácidos Alcanesulfónicos , Contaminantes Ambientales , Fluorocarburos , Nacimiento Prematuro , Masculino , Embarazo , Femenino , Humanos , Recién Nacido , Peso al Nacer , Nacimiento Prematuro/epidemiología , Padre
3.
Environ Health ; 19(1): 45, 2020 04 28.
Artículo en Inglés | MEDLINE | ID: mdl-32345324

RESUMEN

BACKGROUND: Subfertile women have higher risk of glucose intolerance during pregnancy. Studies suggest associations between several endocrine disrupting chemicals (EDCs) and pregnancy glucose levels. However, the association between benzophenone-3 (BP-3), an EDC widely found in sunscreen, and pregnancy glucose levels remains unclear. We aimed to assess the association between perinatal exposures to BP-3 and pregnancy glucose levels in subfertile women. METHODS: We evaluated 217 women from a prospective cohort based at a fertility clinic who had urinary BP-3 concentrations measured during 3-month preconception, first and/or second trimesters, and blood glucose measured at glucose load tests (GLTs) during late pregnancy. Multivariable linear and logistic regression models were used to assess associations between time-specific BP-3 in quartiles (Q1 - Q4) and mean glucose levels, as well as odds of abnormal GLT (glucose level ≥ 140 mg/dL), adjusting for potential confounders. Effect modification was assessed by age, season, BMI, infertility diagnosis, sex of fetus (es) and physical activity. RESULTS: Women with higher first trimester BP-3 concentrations had lower mean glucose levels [mean glucose (95% CI) for Q4 vs Q1 = 103.4 (95.0, 112.5) vs. 114.6 (105.8, 124.2) mg/dL]. Women with higher second trimester BP-3 concentrations had lower odds of abnormal GLT [OR (95% CI) for Q3 vs. Q1 = 0.12 (0.01, 0.94)]. The associations between BP-3 and glucose levels were modified by several factors: women with female-factor infertility, urine collected during summer, older age, lower BMI, or carried female fetus (es) had the strongest inverse associations between BP-3 and glucose levels, while no associations were observed in the remaining subgroups. CONCLUSIONS: Time-specific inverse associations between BP-3 and pregnancy glucose levels existed in subfertile women, and especially among certain subgroups of this high-risk-population.


Asunto(s)
Benzofenonas/orina , Glucemia/metabolismo , Índice de Masa Corporal , Ejercicio Físico , Feto/química , Infertilidad/diagnóstico , Exposición Materna , Adulto , Factores de Edad , Boston , Femenino , Clínicas de Fertilidad , Humanos , Persona de Mediana Edad , Embarazo , Primer Trimestre del Embarazo , Segundo Trimestre del Embarazo , Tercer Trimestre del Embarazo , Estudios Prospectivos , Estaciones del Año , Factores Sexuales , Adulto Joven
4.
Hum Reprod ; 34(9): 1818-1829, 2019 09 29.
Artículo en Inglés | MEDLINE | ID: mdl-31505640

RESUMEN

STUDY QUESTION: What is the association of female and male partner marijuana smoking with infertility treatment outcomes with ART? SUMMARY ANSWER: Women who were marijuana smokers at enrollment had a significantly higher adjusted probability of pregnancy loss during infertility treatment with ART whereas, unexpectedly, there was a suggestion of more favorable treatment outcomes in couples where the man was a marijuana smoker at enrollment. WHAT IS KNOWN ALREADY: Data on the relation of female and male partner marijuana use with outcomes of infertility treatment is scarce despite increased use and legalization worldwide. STUDY DESIGN, SIZE, DURATION: We followed 421 women who underwent 730 ART cycles while participating in a prospective cohort (the Environment and Reproductive Health Study) at a fertility center between 2004 and 2017. Among them, 200 women (368 cycles) were part of a couple in which their male partner also enrolled in the study. PARTICIPANTS/MATERIALS, SETTING, METHODS: Participants self-reported marijuana smoking at baseline. Clinical endpoints were abstracted from electronic medical records. We used generalized linear mixed models with empirical standard errors to evaluate the association of baseline marijuana smoking with ART outcomes adjusting for participants' age, race, BMI, tobacco smoking, coffee and alcohol consumption, and cocaine use. We estimated the adjusted probability of implantation, clinical pregnancy, and live birth per ART cycle, as well as the probability of pregnancy loss among those with a positive B-hCG. MAIN RESULTS AND THE ROLE OF CHANCE: The 44% of the women and 61% of the men had ever smoked marijuana; 3% and 12% were marijuana smokers at enrollment, respectively. Among 317 women (395 cycles) with a positive B-hCG, those who were marijuana smokers at enrollment (N = 9, cycles = 16) had more than double the adjusted probability of pregnancy loss than those who were past marijuana smokers or had never smoked marijuana (N = 308, 379 cycles) (54% vs 26%; P = 0.0003). This estimate was based on sparse data. However, couples in which the male partner was a marijuana smoker at enrollment (N = 23, 41 cycles) had a significantly higher adjusted probability of live birth than couples in which the male partner was a past marijuana smoker or had never smoked marijuana (N= 177, 327 cycles) (48% vs 29%; P = 0.04), independently of the women's marijuana smoking status. Treatment outcomes of past marijuana smokers, male and female, did not differ significantly from those who had never smoked marijuana. LIMITATIONS, REASONS FOR CAUTION: Marijuana smoking was self-reported with possible exposure misclassification. Chance findings cannot be excluded due to the small number of exposed cases. The results may not be generalizable to couples from the general population. WIDER IMPLICATIONS OF THE FINDINGS: Even though marijuana smoking has not been found in past studies to impact the ability to become pregnant among pregnancy planners in the general population, it may increase the risk of pregnancy loss among couples undergoing infertility treatment. Marijuana smoking by females and males may have opposing effects on outcomes of infertility treatment with ART. STUDY FUNDING/COMPETING INTEREST(S): The project was financed by grants R01ES009718, P30ES000002, and K99ES026648 from the National Institute of Environmental Health Sciences (NIEHS). None of the authors has any conflicts of interest to declare.


Asunto(s)
Aborto Espontáneo/epidemiología , Infertilidad/terapia , Nacimiento Vivo/epidemiología , Fumar Marihuana/efectos adversos , Técnicas Reproductivas Asistidas , Adulto , Gonadotropina Coriónica Humana de Subunidad beta/sangre , Femenino , Humanos , Infertilidad/sangre , Masculino , Fumar Marihuana/sangre , Persona de Mediana Edad , Embarazo , Estudios Prospectivos , Autoinforme , Parejas Sexuales
5.
Environ Res ; 177: 108633, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31421444

RESUMEN

BACKGROUND: Triclosan, a widely-used antimicrobial in personal care products, has shown endocrine disrupting activity in experimental studies. However, there is limited evidence from epidemiologic studies on health effects. OBJECTIVE: To examine the association between urinary triclosan concentrations and semen quality. METHODS: A total of 262 men enrolled in the Environmental and Reproductive Health (EARTH) Study provided 581 paired urine and semen samples (2009-2017). Urinary triclosan concentrations were quantified and semen analysis was evaluated according to WHO guidelines. We used linear mixed regression models to estimate the associations between specific gravity-adjusted urinary triclosan concentrations with semen parameters, with a random intercept to account for multiple samples per man and adjusting for age, body mass index (BMI), smoking, physical activity, sexual abstinence time, and season and year of samples' collection. RESULTS: Men had a mean (standard deviation) age of 36.6 (5.24) years and BMI of 27.9 (5.94) kg/m2. Seventy four percent of the samples had detectable (>2.3 µg/L) concentrations. We did not observe significant dose response trends between SG-adjusted urinary triclosan concentrations and semen parameters. However, in the adjusted analysis, compared to men with non-detectable triclosan concentrations in the lowest quartile, those in the second, third, and fourth quartiles had -1.32% (95%CI: -2.04, -0.59), -0.91% (95%CI: -1.63, -0.18), and -0.46% (95%CI: -1.25, 0.33) lower percent morphologically normal sperm, respectively. Similarly, a lower percentage of morphologically normal sperm was found among men with detectable triclosan concentrations, compared to men with non-detectable triclosan [-0.96% (95% CI: -1.57, -0.35)]. In sensitivity analyses, there was stronger negative associations on the percent morphologically normal sperm in the earlier time period due to the significant negative trend in detectable triclosan concentrations over time. CONCLUSION: Despite the lack of observed dose response relationship, we found consistent patterns of lower percent morphologically normal sperm for men with urinary triclosan in the 2nd or 3rd quartile compared to undetectable concentrations.This association was stronger for samples obtained prior to 2013 when triclosan was more often detectable in urine.


Asunto(s)
Exposición a Riesgos Ambientales/estadística & datos numéricos , Clínicas de Fertilidad , Análisis de Semen , Semen , Triclosán/orina , Humanos , Masculino , Recuento de Espermatozoides , Espermatozoides
6.
J Assist Reprod Genet ; 33(4): 489-94, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26847132

RESUMEN

PURPOSE: The purpose of the study is to evaluate the association between donor TSH level (independent of recipient TSH level) and recipient pregnancy outcome among fresh donor oocyte IVF cycles. METHODS: This is a retrospective cohort study investigating 232 consecutive fresh donor-recipient cycles (200 total oocyte donors) at an academic medical center. Main outcome measures include clinical pregnancy and live birth. RESULTS: Cycles were categorized into two groups based on donor TSH level (< 2.5 and ≥ 2.5 mIU/L). After controlling for multiple donor and recipient characteristics, the probability of clinical pregnancy was significantly lower among donors with TSH levels ≥2.5 mIU/L compared to those with TSH values <2.5 mIU/L (43.1 %, 95 % CI 28.5-58.9, versus 66.7 %, 95 % CI 58.6-73.9, respectively, p = 0.01). The difference in live birth rates between the two groups did not achieve statistical significance (43.1 %, 95 % CI 28.8-58.6, versus 58.0 %, 95 % CI 50.0-65.6, respectively, p = 0.09). CONCLUSIONS: Donor TSH level, independent of recipient TSH level, is associated with recipient clinical pregnancy. These findings suggest that thyroid function may impact the likelihood of pregnancy at the level of the oocyte.


Asunto(s)
Fertilización In Vitro , Infertilidad Femenina/sangre , Donación de Oocito , Tirotropina/sangre , Adulto , Transferencia de Embrión , Femenino , Humanos , Inmunoglobulinas Estimulantes de la Tiroides , Infertilidad Femenina/terapia , Nacimiento Vivo , Oocitos/metabolismo , Oocitos/patología , Embarazo , Resultado del Embarazo , Índice de Embarazo
7.
Hum Reprod ; 30(9): 2120-8, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26209788

RESUMEN

STUDY QUESTION: Are urinary BPA concentrations associated with in vitro fertilization (IVF) outcomes among women attending an academic fertility center? SUMMARY ANSWER: Urinary BPA concentrations were not associated with adverse reproductive and pregnancy outcomes among women from a fertility clinic. WHAT IS KNOWN ALREADY: Bisphenol A (BPA), an endocrine disruptor, is detected in the urine of most Americans. Although animal studies have demonstrated that BPA reduces female fertility through effects on the ovarian follicle and uterus, data from human populations are scarce and equivocal. STUDY DESIGN, SIZE AND DURATION: This prospective cohort study between 2004 and 2012 at the Massachusetts General Hospital Fertility Center included 256 women (n = 375 IVF cycles) who provided up to two urine samples prior to oocyte retrieval (total N = 673). PARTICIPANTS/MATERIALS, SETTINGS, METHODS: Study participants were women enrolled in the Environment and Reproductive Health (EARTH) Study. Intermediate and clinical end-points of IVF treatments were abstracted from electronic medical records. We used generalized linear mixed models with random intercepts to evaluate the association between urinary BPA concentrations and IVF outcomes adjusted by age, race, body mass index, smoking status and infertility diagnosis. MAIN RESULTS AND THE ROLE OF CHANCE: The specific gravity-adjusted geometric mean of BPA was 1.87 µg/l, which is comparable to that for female participants in the National Health and Nutrition Examination Survey, 2011-2012. Urinary BPA concentrations were not associated with endometrial wall thickness, peak estradiol levels, proportion of high quality embryos or fertilization rates. Furthermore, there were no associations between urinary BPA concentrations and implantation, clinical pregnancy or live birth rates per initiated cycle or per embryo transfer. Although we did not find any associations between urinary BPA concentrations and IVF outcomes, the relation between BPA and endometrial wall thickness was modified by age. Younger women (<37 years old) had thicker endometrial thickness across increasing quartiles of urinary BPA concentrations, while older women (≥37 years old) had thinner endometrial thickness across increasing quartiles of urinary BPA concentrations. LIMITATIONS, REASONS FOR CAUTION: Limitations to this study include a possible misclassification of BPA exposure and difficulties in extrapolating the findings to the general population. WIDER IMPLICATIONS OF THE FINDINGS: Data on the relation between urinary BPA concentrations and reproductive outcomes remain scarce and additional research is needed to clarify its role in human reproduction. STUDY FUNDING/COMPETING INTERESTS: This work was supported by NIH grants R01ES022955, R01ES009718 and R01ES000002 from the National Institute of Environmental Health Sciences (NIEHS) and grant T32DK00770316 from the National Institute of Child Health and Human Development (NICHD). None of the authors has any conflicts of interest to declare. The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.


Asunto(s)
Compuestos de Bencidrilo/efectos adversos , Estrógenos no Esteroides/efectos adversos , Fertilización In Vitro , Infertilidad Femenina/inducido químicamente , Fenoles/efectos adversos , Resultado del Embarazo , Adulto , Compuestos de Bencidrilo/orina , Estrógenos no Esteroides/orina , Femenino , Humanos , Fenoles/orina , Embarazo , Estudios Prospectivos
8.
Pain Pract ; 15(5): 423-32, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24799153

RESUMEN

BACKGROUND: Recent studies demonstrate that chronic pelvic pain is associated with altered afferent sensory input resulting in maladaptive changes in the neural circuitry of pain. To better understand the central changes associated with chronic pelvic pain, we investigated the contributions of critical pain-related neural circuits using single-voxel proton magnetic resonance spectroscopy (MRS) and transcranial direct current stimulation (tDCS). METHODS: We measured concentrations of neural metabolites in 4 regions of interest (thalamus, anterior cingulate cortex, primary motor, and occipital cortex [control]) at baseline and after 10 days of active or sham tDCS in patients with chronic pelvic pain. We then compared our results to those observed in healthy controls, matched by age and gender. RESULTS: We observed a significant increase in pain thresholds after active tDCS compared with sham conditions. There was a correlation between metabolite concentrations at baseline and quantitative sensory assessments. Chronic pelvic pain patients had significantly lower levels of NAA/Cr in the primary motor cortex compared with healthy patients. CONCLUSIONS: tDCS increases pain thresholds in patients with chronic pelvic pain. Biochemical changes in pain-related neural circuits are associated with pain levels as measured by objective pain testing. These findings support the further investigation of targeted cortical neuromodulatory interventions for chronic pelvic pain.


Asunto(s)
Dolor Crónico/diagnóstico , Espectroscopía de Resonancia Magnética/métodos , Corteza Motora , Dimensión del Dolor/métodos , Dolor Pélvico/diagnóstico , Estimulación Transcraneal de Corriente Directa/métodos , Adulto , Dolor Crónico/metabolismo , Dolor Crónico/terapia , Terapia por Estimulación Eléctrica/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Corteza Motora/metabolismo , Manejo del Dolor/métodos , Dolor Pélvico/metabolismo , Dolor Pélvico/terapia
9.
Am J Obstet Gynecol ; 211(1): 62.e1-8, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24487006

RESUMEN

OBJECTIVE: The objective of the study was to determine the fecundity of young women (<35 years) with an elevated day 3 follicle stimulating hormone (FSH) undergoing gonadotropin-stimulation/intrauterine insemination. STUDY DESIGN: This was a retrospective study. The study was conducted at an academic fertility center. A total of 1396 gonadotropin stimulation/intrauterine insemination cycles from 563 women were stratified by day 3 FSH levels (<10 vs ≥10 U/L) and outcomes were compared. Gonadotropin dose, treatment duration, peak estradiol (E2), number of preovulatory follicles (total, large, and medium size), E2/follicle, endometrial thickness, spontaneous abortion, clinical and multiple pregnancy rates were measured. The statistics included a Student t test, a χ(2), regression, and a discrete survival analysis. RESULTS: An elevated day 3 FSH was found in 10.2% of the women, despite favorable age (31.9 ± 2.5 years). Women with a day 3 FSH of 10 U/L or greater when compared with women with a normal day 3 level required significantly more medication (1058.9 ± 1106.0 vs 632.7 ± 477.5 IU, P < .0001) were triggered a day earlier (10.6 ± 2.4 vs 11.5 ± 2.9 days, P = .0006) and had E2 levels (on the day of and the day prior to human chorionic gonadotropin administration) that were significantly higher (529.5 ± 244.3 vs 450.0 ± 244.2 and 359.6 ± 141.7 vs 306.8 ± 160.9 pg/mL, respectively, P < .05). Clinical pregnancy rates were comparable among the groups (14.6 vs 14%, respectively, P > .05). Spontaneous abortion and multiple pregnancy rates were higher among women with an FSH of 10U/L or greater but not significantly so (27.8% vs 12.0%, 22.2% vs 13.8% for FSH of ≥10 vs FSH < or >10 U/L, P > .05). CONCLUSION: Women younger than 35 years with an elevated day 3 FSH, when treated aggressively with gonadotropins have pregnancy rates comparable with those of women with a normal baseline FSH. To achieve this outcome, they need higher doses of medication to stimulate the production of a larger preovulatory follicular cohort.


Asunto(s)
Hormona Folículo Estimulante/sangre , Infertilidad Femenina/terapia , Inseminación Artificial , Inducción de la Ovulación , Índice de Embarazo , Adulto , Factores de Edad , Biomarcadores/sangre , Gonadotropina Coriónica/uso terapéutico , Femenino , Fármacos para la Fertilidad Femenina/uso terapéutico , Humanos , Infertilidad Femenina/sangre , Modelos Lineales , Análisis Multivariante , Inducción de la Ovulación/métodos , Embarazo , Pronóstico , Estudios Retrospectivos , Resultado del Tratamiento
10.
Am J Obstet Gynecol ; 211(5): 492.e1-9, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24881820

RESUMEN

OBJECTIVE: We sought to determine whether the success of intrauterine insemination (IUI) varies based on the type of health care provider performing the procedure. STUDY DESIGN: This was a retrospective cohort study set at an infertility clinic at an academic institution. The patients who comprised this study were 1575 women who underwent 3475 IUI cycles from late 2003 through early 2012. Cycles were stratified into 3 groups according to the type of provider who performed the procedure: attending physician, fellow physician, or registered nurse (RN). The primary outcome was live birth. Additional outcomes of interest included positive pregnancy test and clinical pregnancy. Repeated measures log binomial regression was used to estimate the risk ratios (RR) and 95% confidence intervals (CI) for the outcomes and to evaluate the effect of potential confounders. All tests were 2-sided, and P values < .05 were considered statistically significant. RESULTS: Of the 3475 IUI cycles, 2030 (58.4%) were gonadotropin stimulated, 929 (26.7%) were clomiphene citrate stimulated, and 516 (14.9%) were natural. The incidences of clinical pregnancy and live birth among all cycles were 11.8% and 8.8%, respectively. After adjusting for female age, male partner age, and cycle type, the incidence of live birth was similar for RNs compared with attending physicians (RR, 0.80; 95% CI, 0.58-1.1) and fellow physicians compared with attending physicians (RR, 0.84; 95% CI, 0.58-1.2). Similar results were seen for positive pregnancy test and clinical pregnancy. CONCLUSION: There was no significant difference in live birth following IUI cycles in which the procedure was performed by a fellow physician or RN compared with an attending physician.


Asunto(s)
Clomifeno/uso terapéutico , Becas , Fármacos para la Fertilidad Femenina/uso terapéutico , Gonadotropinas/uso terapéutico , Infertilidad/terapia , Inseminación Artificial/métodos , Nacimiento Vivo , Enfermeras y Enfermeros , Adulto , Estudios de Cohortes , Docentes Médicos , Femenino , Humanos , Modelos Logísticos , Cuerpo Médico , Inducción de la Ovulación/métodos , Embarazo , Índice de Embarazo , Estudios Retrospectivos , Resultado del Tratamiento
11.
Environ Pollut ; 346: 123513, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38350534

RESUMEN

Per- and polyfluoroalkyl substances (PFAS) exposure was associated with changes in thyroid function in pregnant mothers and the general population. Limited such evidence exists in other susceptible populations such as females with fertility problems. This cross-sectional study included 287 females seeking medically assisted reproduction at a fertility clinic in Massachusetts, United States, between 2005 and 2019. Six long-alkyl chain PFAS, thyroid hormones, and autoimmune antibodies were quantified in baseline serum samples. We used generalized linear models and quantile g-computation to evaluate associations of individual PFAS and their total mixture with thyroid biomarkers. Most females were White individuals (82.7%), had graduate degrees (57.8%), and nearly half had unexplained subfertility (45.9%). Serum concentrations of all examined PFAS and their mixture were significantly associated with 2.6%-5.6% lower total triiodothyronine (TT3) concentrations. Serum concentrations of perfluorononanoate (PFNA), perfluorodecanoate (PFDA), and perfluoroundecanoate (PFUnDA), and of the total mixture were associated with higher ratios of free thyroxine (FT4) to free triiodothyronine (FT3). No associations were found for PFAS and TSH or autoimmune antibodies. Our findings support the thyroid-disrupting effect of long alkyl-chain PFAS among a vulnerable population of subfertile females.


Asunto(s)
Ácidos Alcanesulfónicos , Contaminantes Ambientales , Fluorocarburos , Embarazo , Humanos , Femenino , Glándula Tiroides , Triyodotironina , Estudios Transversales , Clínicas de Fertilidad , Hormonas Tiroideas , Biomarcadores
13.
Fertil Steril ; 120(3 Pt 1): 539-550, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-36870592

RESUMEN

For years, reproductive surgery was the mainstay of reproductive care. With the evolution and ultimate success of in vitro fertilization (IVF), reproductive surgery became an adjuvant therapy, indicated mainly for severe symptoms or to enhance success rates with assisted reproductive technologies. As success rates for IVF have plateaued, and emerging data rekindles the enormous benefits of surgically correcting reproductive pathologies, there is renewed interest among reproductive surgeons in reviving research and surgical expertise in this area. In addition, new instrumentation and surgical techniques to preserve fertility have gained traction and will solidify the need to have skilled reproductive endocrinology and infertility surgeons in our practice.


Asunto(s)
Infertilidad Femenina , Laparoscopía , Femenino , Humanos , Infertilidad Femenina/cirugía , Infertilidad Femenina/diagnóstico , Laparoscopía/métodos , Fertilidad , Técnicas Reproductivas Asistidas , Fertilización In Vitro/métodos
14.
Hum Reprod ; 27(12): 3583-92, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23014629

RESUMEN

STUDY QUESTION: In women undergoing IVF, are urinary bisphenol A (BPA) concentrations associated with ovarian response and early reproductive outcomes, including oocyte maturation and fertilization, Day 3 embryo quality and blastocyst formation? SUMMARY ANSWER: Higher urinary BPA concentrations were found to be associated with decreased ovarian response, number of fertilized oocytes and decreased blastocyst formation. WHAT IS KNOWN ALREADY: Experimental animal and in vitro studies have reported associations between BPA exposure and adverse reproductive outcomes. We previously reported an association between urinary BPA and decreased ovarian response [peak serum estradiol (E(2)) and oocyte count at the time of retrieval] in women undergoing IVF; however, there are limited human data on reproductive health outcomes, such as fertilization and embryo development. STUDY DESIGN, SIZE AND DURATION: Prospective preconception cohort study. One hundred and seventy-four women aged 18-45 years and undergoing 237 IVF cycles were recruited at the Massachusetts General Hospital Fertility Center, Boston, MA, USA, between November 2004 and August 2010. These women were followed until they either had a live birth or discontinued treatment. Cryothaw and donor egg cycles were not included in the analysis. PARTICIPANTS/MATERIALS, SETTING AND METHODS: Urinary BPA concentrations were measured by online solid-phase extraction-high-performance liquid chromatography-isotope dilution-tandem mass spectrometry. Mixed effect models, poisson regression and multivariate logistic regression models were used wherever appropriate to evaluate the association between cycle-specific urinary BPA concentrations and measures of ovarian response, oocyte maturation (metaphase II), fertilization, embryo quality and cleavage rate. We accounted for correlation among multiple IVF cycles in the same woman using generalized estimating equations. MAIN RESULTS AND THE ROLE OF CHANCE: The geometric mean (SD) for urinary BPA concentrations was 1.50 (2.22) µg/l. After adjustment for age and other potential confounders (Day 3 serum FSH, smoking, BMI), there was a significant linear dose-response association between increased urinary BPA concentrations and decreased number of oocytes (overall and mature), decreased number of normally fertilized oocytes and decreased E(2) levels (mean decreases of 40, 253 and 471 pg/ml for urinary BPA quartiles 2, 3 and 4, when compared with the lowest quartile, respectively; P-value for trend = 0.001). The mean number of oocytes and normally fertilized oocytes decreased by 24 and 27%, respectively, for the highest versus the lowest quartile of urinary BPA (trend test P < 0.001 and 0.002, respectively). Women with urinary BPA above the lowest quartile had decreased blastocyst formation (trend test P-value = 0.08). LIMITATIONS AND REASONS FOR CAUTION: Potential limitations include exposure misclassification due to the very short half-life of BPA and its high variability over time; uncertainty about the generalizability of the results to the general population of women conceiving naturally and limited sample. WIDER IMPLICATIONS OF THE FINDINGS: The results from this extended study, using IVF as a model to study early reproductive health outcomes in humans, indicate a negative dose-response association between urinary BPA concentrations and serum peak E(2) and oocyte yield, confirming our previous findings. In addition, we found significantly decreased metaphase II oocyte count and number of normally fertilizing oocytes and a suggestive association between BPA urinary concentrations and decreased blastocyst formation, thus indicating that BPA may alter reproductive function in susceptible women undergoing IVF. STUDY FUNDING/COMPETING INTEREST(S): This work was supported by grants ES009718 and ES000002 from the National Institute of Environmental Health Sciences and grant OH008578 from the National Institute for Occupational Safety and Health. None of the authors has actual or potential competing financial interests. DISCLAIMER: The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.


Asunto(s)
Compuestos de Bencidrilo/orina , Fertilización In Vitro , Oocitos/efectos de los fármacos , Fenoles/orina , Salud Reproductiva , Adolescente , Adulto , Estudios de Cohortes , Femenino , Humanos , Massachusetts , Persona de Mediana Edad , Inducción de la Ovulación/métodos , Embarazo , Índice de Embarazo , Estudios Prospectivos
15.
F S Rep ; 3(1): 26-31, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35386501

RESUMEN

Objective: To describe a case of a personal and family history of early uterine leiomyomatosis that revealed a pathogenic variant in the FH gene encoding fumarate hydratase. After the patient's diagnosis, a first-degree relative was detected with early-stage renal cell carcinoma. The patient decided to undergo preimplantation genetic testing to reduce the risk to her future children. Design: A case report of autosomal dominant hereditary leiomyomatosis and renal cell cancer syndrome where the patient underwent 2 cycles of in vitro fertilization with preimplantation genetic testing for monogenic disease/aneuploidy (PGT-MA) that resulted in 3 unaffected, euploid embryos. Setting: Large academic single-center hospital. Patients: A 35-year-old nulligravida woman with a personal history of an early-onset uterine leiomyomatosis and a family history of renal cell carcinoma and uterine leiomyomas, who is heterozygous for a pathogenic variant in FH and diagnosed with hereditary leiomyomatosis and renal cell cancer syndrome. Informed consent was obtained. Interventions: Two laparoscopic myomectomies were performed, and tissue was sent for histopathology and immunostaining. Hereditary leiomyomatosis and renal cell cancer syndrome was confirmed by germline testing, and 2 cycles of PGT-MA were performed. Main Outcome Measures: Through PGT-MA, the patient was able to mitigate the risk of passing a known familial variant to her future children. Results: After 2 cycles of in vitro fertilization with PGT-MA, 3 unaffected embryos were available for transfer. An unaffected, euploid embryo was transferred for pregnancy, and the patient is currently pregnant in her second trimester. Conclusions: Pathogenic variants in FH should be suspected in patients with early-onset uterine leiomyomas and a family history of cutaneous and/or uterine leiomyomas. Familial variant testing is crucial in identifying relatives at risk to start early screening.

16.
Fertil Steril ; 117(1): 10-14, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34924184

RESUMEN

Healthcare teams must be deliberately cultivated to reach their full potential. Shifting focus from individual performance to a team's collective competence allows for targeted and evidence-based interventions that support teamwork and improve patient outcomes. We reviewed essential concepts drawn from team science and explored the practical applications of teaming. Reproductive endocrinology and infertility healthcare providers play a pivotal role by teaching, modeling, and fostering teaming attitudes and behaviors. Through teaming, we can maximize our teams' ability to learn, innovate, compete with other teams, and thrive in today's healthcare environment.


Asunto(s)
Personal de Salud/educación , Invenciones , Grupo de Atención al Paciente/organización & administración , Medicina Reproductiva , Competencia Clínica , Endocrinología/educación , Endocrinología/organización & administración , Femenino , Personal de Salud/organización & administración , Personal de Salud/normas , Humanos , Invenciones/tendencias , Aprendizaje , Masculino , Embarazo , Medicina Reproductiva/educación , Medicina Reproductiva/organización & administración , Medicina Reproductiva/tendencias , Terapias en Investigación/tendencias
17.
Fertil Steril ; 117(1): 8-9, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34879922

RESUMEN

Providing medical care at the highest levels across various reproductive endocrinology and infertility settings necessitates seamless partnership among multiple people with diverse skill sets. In this introductory article for this month's Views and Reviews, the concept of teaming is presented, including the key concepts of collaboration, assembling the right team members, establishing goals, inspiring and empowering others, and encouraging new approaches to optimize outcomes. Following this introduction, thought leaders from diverse reproductive endocrinology and infertility spaces, including clinical, ambulatory surgery, laboratory, and research settings, present their experiences using teaming models to adapt team members' thinking, elevate the quality of scientific productivity, and achieve excellence in both patient care and laboratory and clinical outcomes.


Asunto(s)
Endocrinología/organización & administración , Grupo de Atención al Paciente/organización & administración , Medicina Reproductiva/organización & administración , Procedimientos Quirúrgicos Ambulatorios , Investigación Biomédica/organización & administración , Eficiencia Organizacional , Femenino , Humanos , Infertilidad/diagnóstico , Infertilidad/terapia , Comunicación Interdisciplinaria , Laboratorios Clínicos/organización & administración , Masculino , Seguridad del Paciente/normas , Embarazo , Garantía de la Calidad de Atención de Salud/organización & administración
18.
Fertil Steril ; 117(2): 459-460, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34937666

RESUMEN

The purpose of this video is to illustrate the evolution of minimally invasive surgery from the perspectives of several pioneering surgeons in the field of reproductive surgery who, among others, were present during its nascence and exponential growth. Interviews were conducted with five reproductive surgeons who had foundational roles in the innovation of operative laparoscopy and hysteroscopy. Surgeons interviewed include Drs. Victor Gomel, Togas Tulandi, Stephen Corson, Jacques Donnez, and Camran Nezhat. The interviews were conducted using standardized questions and recorded, edited, and grouped both thematically and in sequence to develop an illustration of their perspectives. A diverse array of reproductive surgeons has been instrumental in establishing minimally invasive surgery as a safe and effective means of diagnosing and treating patients with infertility. The transition from laparotomy to laparoscopy consistently has had distinct challenges for each but ultimately led to significant advances in surgical management and improvement in outcomes for patients with infertility and chronic pelvic pain. Through structured interviews from some of our surgical pioneers, they not only recognize their predecessors and contemporaries but also teach us valuable lessons about our history, sparking innovation, and newer surgical applications of reproductive surgery in reproductive endocrinology and infertility practice.


Asunto(s)
Endocrinología , Histeroscopía , Laparoscopía , Medicina Reproductiva , Femenino , Humanos
19.
Fertil Steril ; 117(1): 133-141, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34548165

RESUMEN

OBJECTIVE: To compare the effect of preoperative intravenous (IV) acetaminophen versus oral (PO) acetaminophen or placebo on postoperative pain scores and the time to discharge in women undergoing oocyte retrieval. DESIGN: Randomized, double-blind, placebo-controlled trial. SETTING: Single academic fertility center. PATIENT(S): Women aged 18-43 years undergoing oocyte retrieval. INTERVENTION(S): Randomization to preoperative 1,000 mg IV acetaminophen and PO placebo (group A), IV placebo and 1,000 mg PO acetaminophen (group B), or IV and PO placebo (group C) MAIN OUTCOME MEASURE(S): Difference in patient-reported postoperative visual analog scale pain scores from baseline and the time to discharge. RESULT(S): Of the 159 women who completed the study, there were no differences in the mean postoperative pain score differences or the time to discharge. Although not statistically significant, the mean postoperative opioid dose requirement in group A was lower than that in groups B and C (0.24 vs. 0.59 vs. 0.58 mg IV morphine equivalents, respectively) due to fewer women in group A requiring rescue pain medication (8% vs. 19% vs. 15%, respectively). Group A also reported less constipation when compared with groups B and C (19% vs. 33% vs. 40%, respectively). The rates of postoperative nausea were similar, and there were no differences in embryology or early pregnancy outcomes between the study groups. CONCLUSION(S): Preoperative IV acetaminophen for women undergoing oocyte retrieval did not reduce postoperative pain scores or shorten the time to discharge when compared with PO acetaminophen or placebo and, thus, cannot currently be recommended routinely in this patient population. CLINICAL TRIAL REGISTRATION NUMBER: NCT03073980.


Asunto(s)
Acetaminofén/administración & dosificación , Recuperación del Oocito/métodos , Manejo del Dolor/métodos , Administración Intravenosa , Adolescente , Adulto , Método Doble Ciego , Femenino , Humanos , Massachusetts/epidemiología , Recuperación del Oocito/efectos adversos , Dimensión del Dolor , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/epidemiología , Dolor Postoperatorio/etiología , Periodo Perioperatorio , Placebos , Adulto Joven
20.
Fertil Steril ; 116(5): 1238-1252, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34756327

RESUMEN

There are many proposed classification systems for müllerian anomalies. The American Fertility Society (AFS) Classification from 1988 has been the most recognized and utilized. The advantages of this iconic classification include its simplicity, recognizability, and correlation with clinical pregnancy outcomes. However, the AFS classification has been criticized for its focus primarily on uterine anomalies, with exclusion of those of the vagina and cervix, its lack of clear diagnostic criteria, and its inability to classify complex aberrations. Despite this classification and others, the wide range of müllerian anomalies is still largely unknown and confusing to many providers. Consequently, müllerian anomalies may go undiagnosed for extended periods, receive inappropriate or inadequate surgical interventions, and result in persistent issues such as pain or loss of reproductive function. The American Society for Reproductive Medicine Task Force on Müllerian Anomalies Classification was formed and charged with designing a new classification. The Task Force set goals for a new classification and chose to base it on the iconic AFS classification from 1988 because of its simplicity and recognizability, while expanding and updating it to include all categories of anomalies. In addition, this was recognized as an opportunity to raise awareness of this area of medicine, educate providers and learners, and promote patient advocacy. Presented here is the new American Society for Reproductive Medicine Müllerian Anomalies Classification 2021.


Asunto(s)
Técnicas de Apoyo para la Decisión , Imagen por Resonancia Magnética , Conductos Paramesonéfricos/diagnóstico por imagen , Terminología como Asunto , Ultrasonografía , Anomalías Urogenitales/diagnóstico por imagen , Útero/anomalías , Vagina/diagnóstico por imagen , Cuello del Útero/anomalías , Cuello del Útero/diagnóstico por imagen , Femenino , Humanos , Masculino , Conductos Paramesonéfricos/anomalías , Valor Predictivo de las Pruebas , Anomalías Urogenitales/clasificación , Útero/diagnóstico por imagen , Vagina/anomalías
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