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1.
J Clin Med ; 13(12)2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38930089

RESUMEN

Objectives: In vitro fertilization (IVF) has the potential to give babies to millions more people globally, yet it continues to be underutilized. We established a globally applicable and locally adaptable IVF prognostics report and framework to support patient-provider counseling and enable validated, data-driven treatment decisions. This study investigates the IVF utilization rates associated with the usage of machine learning, center-specific (MLCS) prognostic reports (the Univfy® report) in provider-patient pre-treatment and IVF counseling. Methods: We used a retrospective cohort comprising 24,238 patients with new patient visits (NPV) from 2016 to 2022 across seven fertility centers in 17 locations in seven US states and Ontario, Canada. We tested the association of Univfy report usage and first intra-uterine insemination (IUI) and/or first IVF usage (a.k.a. conversion) within 180 days, 360 days, and "Ever" of NPV as primary outcomes. Results: Univfy report usage was associated with higher direct IVF conversion (without prior IUI), with odds ratios (OR) 3.13 (95% CI 2.83, 3.46), 2.89 (95% CI 2.63, 3.17), and 2.04 (95% CI 1.90, 2.20) and total IVF conversion (with or without prior IUI), OR 3.41 (95% CI 3.09, 3.75), 3.81 (95% CI 3.49, 4.16), and 2.78 (95% CI 2.59, 2.98) in 180-day, 360-day, and Ever analyses, respectively; p < 0.05. Among patients with Univfy report usage, after accounting for center as a factor, older age was a small yet independent predictor of IVF conversion. Conclusions: Usage of a patient-centric, MLCS-based prognostics report was associated with increased IVF conversion among new fertility patients. Further research to study factors influencing treatment decision making and real-world optimization of patient-centric workflows utilizing the MLCS reports is warranted.

2.
Cult Med Psychiatry ; 44(1): 110-134, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31228034

RESUMEN

Mental healthcare is largely unavailable throughout Haiti, particularly in rural areas. The aim of the current study is to explore perceived feasibility, acceptability, and effectiveness of potential culturally adapted interventions to improve mental health among Haitian women. The study used focus group discussions (n = 12) to explore five potential interventions to promote mental health: individual counseling, income-generating skills training, peer support groups, reproductive health education, and couples' communication training. Findings indicate that individual counseling, support group, and skills training components were generally anticipated to be effective, acceptable, and feasible by both male and female participants. That being said, participants expressed doubts regarding the acceptability of the couples' communication training and reproductive health education due to: a perceived lack of male interest, traditional male and female gender roles, lack of female autonomy, and misconceptions about family planning. Additionally, the feasibility, effectiveness, and acceptability of the components were described as dependent on cost, proximity to participants, and inclusion of a female health promoter that is known in the community. Given the lack of research on intervention approaches in Haiti, particularly those targeting mental health, this study provides a foundation for developing prevention and treatment approaches for mental distress among Haitian women.


Asunto(s)
Asistencia Sanitaria Culturalmente Competente , Promoción de la Salud , Trastornos Mentales/terapia , Salud Mental , Aceptación de la Atención de Salud , Población Rural , Esposos , Salud de la Mujer , Adulto , Estudios de Factibilidad , Femenino , Haití , Promoción de la Salud/métodos , Humanos , Masculino , Trastornos Mentales/prevención & control , Investigación Cualitativa
3.
Curr Obstet Gynecol Rep ; 7(2): 97-105, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30319927

RESUMEN

PURPOSE OF REVIEW: Uterine fibroids are common benign tumors of women in the USA and worldwide, yet the biological nature and pathogenesis of these tumors remain largely unknown. This review presents our view of the stages in the life cycle of a subset of uterine fibroid myocytes, introduces hypothetical concepts and morphological data to explain these changes, and relates these changes in individual myocytes to the phases of fibroid tumor development. RECENT FINDINGS: The observations gained from light and electron microscopic, immunohistochemical, and morphometric studies in our laboratory have led to the hypothesis that fibroid changes over time may relate to the excessive production of collagen by phenotypically transformed myocytes. This accumulation of collagen results in decreased microvessel density, followed by myocyte injury and atrophy, with eventual senescence and involution through ischemic cellular degeneration and inanition. SUMMARY: Uterine leiomyomas, or fibroids, are characterized by two histologic features-proliferation of myocytes and production of an extracellular collagenous matrix. In the larger tumors, the collagenous matrix is often abundant. Within those regions in which the accumulating collagen is excessive, the myocytes are progressively separated from their blood supply, resulting in myocyte atrophy and eventually cell death. It is within these hypocellular, hyalinized areas that the complete lifecycle of the fibroid myocyte is realized. It begins with the phenotypic transformation of a contractile cell to one characterized by proliferation and collagen synthesis, progresses through an intermediate stage of atrophy related to interstitial ischemia, and eventuates in cell death due to inanition. Lastly, resorption of inanotic cells appears to occur by a non-phagocytic, presumably enzymatic process of degradation and recycling that we refer to as reclamation.

4.
Int J Otolaryngol ; 2018: 9429287, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30364200

RESUMEN

This manuscript characterizes the demographics, presenting symptoms and risk factors of patients diagnosed with head and neck cancer at Hopital de L'Universite d'Etat d'Haiti (HUEH), Haiti's single largest healthcare facility. We conducted a prospective study of patients who presented to HUEH between January and March of 2016 with a lesion of the head or neck suspicious for cancer. All patients who met eligibility criteria received a biopsy, which was interpreted by a Haitian pathologist and when the specimen was available was confirmed by a team of pathologists from Stanford University. A total of 34 participants were identified. The biopsy-confirmed diagnoses were squamous cell carcinoma (n=7), benign (n=7), large cell lymphoma (n=2), ameloblastoma (n=2), pleomorphic adenoma (n=1), and adenocarcinoma (n=1). Fourteen patients were unavailable for biopsy. Patients with head and neck cancer had a mean age of 63.4 years, were majority male (62.5%), waited on average 10.9 months to seek medical attention, and most commonly presented with T-stage 3 or higher disease (87.5%). By characterizing patterns of head and neck cancer at HUEH we hope to facilitate efforts to improve early detection, diagnosis, and management of this important public health condition.

5.
Int J Pediatr Otorhinolaryngol ; 93: 128-132, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28109483

RESUMEN

OBJECTIVE: Little is known regarding the diagnosis and management of pediatric surgical conditions of the head and neck in low-income countries. Haiti, the western hemisphere's poorest country, recently developed its first Otorhinolaryngology (ORL) department at the Hopital de L'Universite d'Etat d'Haiti (HUEH). This manuscript assesses the caseload at HUEH with a special emphasis on pediatric cases, with the aim of characterizing ORL related conditions and their treatments in low-income countries. METHODS: We conducted a retrospective chart review of surgical case logs at HUEH for the calendar year of 2014 and recorded patient age, diagnosis, and surgical intervention for all ORL surgeries. RESULTS: A total of 229 ORL surgeries were performed at HUEH during this time. The average age of the patient was 21.8 years and 54.2% of patients were 18 years or younger. The five most common diagnoses were tonsillar hypertrophy (23.6%), ingested foreign body (18%), mandibular fracture (9.2%), unspecified head or neck mass (6%), and thyroid goiter (4.8%). The five most common surgeries performed were tonsillectomy (23.6%), foreign body retrieval (17.9%), open reduction of mandibular fracture with direct skeletal fixation (6.9%), thyroidectomy (7.9%), and excision of unspecified mass. Trauma accounted for 33.6% of all ORL surgeries. CONCLUSIONS: Diseases related to the head and neck constitute a common yet underserved surgical problem. Strengthening ORL surgical capacity in Haiti should focus on improving capacity for the most common conditions including tonsillar disease, ingested foreign bodies, and facial trauma, as well as improving capacity for rarely performed surgeries, such as ear surgery, nose and sinus surgery, and cancer resections.


Asunto(s)
Países en Desarrollo/estadística & datos numéricos , Enfermedades Otorrinolaringológicas/epidemiología , Procedimientos Quirúrgicos Otorrinolaringológicos/estadística & datos numéricos , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Haití/epidemiología , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
6.
Glob Public Health ; 12(5): 531-544, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-26565063

RESUMEN

We assessed healthcare provider perspectives of international aid four years after the Haiti Earthquake to better understand the impact of aid on the Haitian healthcare system and learn best practices for recovery in future disaster contexts. We conducted 22 semi-structured interviews with the directors of local, collaborative, and aid-funded healthcare facilities in Leogane, Haiti. We coded and analysed the interviews using an iterative method based on a grounded theory approach of data analysis. Healthcare providers identified positive aspects of aid, including acute emergency relief, long-term improved healthcare access, and increased ease of referrals for low-income patients. However, they also identified negative impacts of international aid, including episodes of poor quality care, internal brain drain, competition across facilities, decrease in patient flow to local facilities, and emigration of Haitian doctors to abroad. As Haiti continues to recover, it is imperative for aid institutions and local healthcare facilities to develop a more collaborative relationship to transition acute relief to sustainable capacity building. In future disaster contexts, aid institutions should specifically utilise quality of care metrics, NGO Codes of Conduct, Master Health Facility Lists, and sliding scale payment systems to improve disaster response.


Asunto(s)
Desastres , Terremotos , Sistemas de Socorro , Factores Socioeconómicos , Creación de Capacidad , Femenino , Haití , Personal de Salud/psicología , Planificación en Salud , Accesibilidad a los Servicios de Salud , Necesidades y Demandas de Servicios de Salud , Humanos , Cooperación Internacional , Entrevistas como Asunto , Masculino , Investigación Cualitativa , Sistemas de Socorro/economía , Sistemas de Socorro/organización & administración
7.
Sex Transm Dis ; 42(11): 655-9, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26462192

RESUMEN

BACKGROUND: Human papillomavirus (HPV) testing as primary cervical cancer screening has not been studied in Caribbean women. We tested vaginal self-collection versus physician cervical sampling in a population of Haitian women. METHODS: Participants were screened for high-risk HPV with self-performed vaginal and clinician-collected cervical samples using Hybrid Capture 2 assays (Qiagen, Gaithersburg, MD). Women positive by either method then underwent colposcopy with biopsy of all visible lesions. Sensitivity and positive predictive value were calculated for each sample method compared with biopsy results, with κ statistics performed for agreement. McNemar tests were performed for differences in sensitivity at ≥cervical intraepithelial neoplasia (CIN)-I and ≥CIN-II. RESULTS: Of 1845 women screened, 446 (24.3%) were HPV positive by either method, including 105 (5.7%) only by vaginal swab and 53 (2.9%) only by cervical swab. Vaginal and cervical samples were 91.4% concordant (κ = 0.73 [95% confidence interval, 0.69-0.77], P < 0.001). Overall, 133 HPV-positive women (29.9%) had CIN-I, whereas 32 (7.2%) had ≥CIN-II. The sensitivity of vaginal swabs was similar to cervical swabs for detecting ≥CIN-I (89.1% vs. 87.9%, respectively; P = 0.75) lesions and ≥CIN-II disease (87.5% vs. 96.9%, P = 0.18). Eighteen of 19 cases of CIN-III and invasive cancer were found by both methods. CONCLUSIONS: Human papillomavirus screening via self-collected vaginal swabs or physician-collected cervical swabs are feasible options in this Haitian population. The agreement between cervical and vaginal samples was high, suggesting that vaginal sample-only algorithms for screening could be effective for improving screening rates in this underscreened population.


Asunto(s)
Detección Precoz del Cáncer/métodos , Tamizaje Masivo/métodos , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Manejo de Especímenes/métodos , Displasia del Cuello del Útero/prevención & control , Neoplasias del Cuello Uterino/prevención & control , Frotis Vaginal , Adolescente , Adulto , ADN Viral , Estudios de Factibilidad , Femenino , Haití/epidemiología , Humanos , Infecciones por Papillomavirus/complicaciones , Valor Predictivo de las Pruebas , Autocuidado , Sensibilidad y Especificidad , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/virología , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/virología
8.
Am J Trop Med Hyg ; 92(2): 448-453, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25510716

RESUMEN

The reconstruction of healthcare systems in developing countries after natural disasters is poorly understood. Using data collected before and after the 2010 Haiti earthquake, we detail the response of aid agencies and their interaction with local healthcare providers in Leogane, the city closest to the epicenter. We find that the period after the earthquake was associated with an increase in the total number of healthcare facilities, inpatient beds, and surgical facilities and that international aid has been a driving force behind this recovery. Aid has funded 12 of 13 new healthcare facilities that have opened since the earthquake as well as the reconstruction of 7 of 8 healthcare facilities that have been rebuilt. Despite increases in free, aid-financed healthcare, private Haitian healthcare facilities have remained at a constant number. The planned phase-out of several aid-financed facilities, however, will leave Leogane with fewer inpatient beds and healthcare services compared with the pre-earthquake period.


Asunto(s)
Atención a la Salud/organización & administración , Desastres , Terremotos , Cooperación Internacional , Atención a la Salud/estadística & datos numéricos , Haití/epidemiología , Instituciones de Salud/estadística & datos numéricos , Administración de Instituciones de Salud , Hospitales/estadística & datos numéricos , Humanos , Estudios Longitudinales
9.
Obstet Gynecol Int ; 2013: 528376, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24348569

RESUMEN

We propose, and offer evidence to support, the concept that many uterine leiomyomas pursue a self-limited life cycle. This cycle can be arbitrarily divided on the basis of morphologic assessment of the collagen content into 4 phases: (1) proliferation, (2) proliferation and synthesis of collagen, (3) proliferation, synthesis of collagen, and early senescence, and (4) involution. Involution occurs as a result of both vascular and interstitial ischemia. Interstitial ischemia is the consequence of the excessive elaboration of collagen, resulting in reduced microvascular density, increased distance between myocytes and capillaries, nutritional deprivation, and myocyte atrophy. The end stage of this process is an involuted tumor with a predominance of collagen, little to no proliferative activity, myocyte atrophy, and myocyte cell death. Since many of the dying cells exhibit light microscopic and ultrastructural features that appear distinct from either necrosis or apoptosis, we refer to this process as inanosis, because it appears that nutritional deprivation, or inanition, is the underlying cause of cell death. The disposal of myocytes dying by inanosis also differs in that there is no phagocytic reaction, but rather an apparent dissolution of the cell, which might be viewed as a process of reclamation as the molecular contents are reclaimed and recycled.

10.
PLoS One ; 8(10): e76110, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24098429

RESUMEN

BACKGROUND: There have been no published studies of carcinogenic human papillomavirus (HPV)--the necessary cause of cervical cancer--in Haiti, a nation that has one of the greatest burdens of cervical cancer globally. OBJECTIVE: Characterize prevalence of carcinogenic HPV and the prevalence of individual carcinogenic HPV genotypes in women with cervical precancer or cancer, cervical intraepithelial neoplasia grade 2 (CIN2) or more severe (CIN2+). METHODS: Women (n=9,769; aged 25-60 years) were screened for carcinogenic HPV by Hybrid Capture 2 (HC2; Qiagen, Gaithersburg, MD). Carcinogenic HPV positives underwent colposcopy and visible lesions were biopsied. A subset of carcinogenic HPV positives was tested for individual HPV genotypes using a GP5+/6+ assay. RESULTS: The prevalence of carcinogenic HPV was 19.0% (95% confidence interval: 18.4%-19.9%) and decreased with increasing age (ptrend < 0.001). Women with 3 or more sexual partners and who started sex before the age of 18 years had twice the age-adjusted prevalence of carcinogenic HPV of women with one partner and who started sex after the age of 21 (24.3% vs. 12.9%, respectively). HPV16 and HPV35 were the most common HPV genotypes detected in CIN2+ and more common in women with CIN2+ than those without CIN2+. HPV16 and/or HPV18 were detected in 21.0% of CIN2 (n = 42), 46.2% of CIN3 (n = 52), and 80% of cancers (n = 5). CONCLUSIONS: The prevalence of carcinogenic HPV in Haiti was much greater than the prevalence in other Latin American countries. High carcinogenic HPV prevalence and a lack of cervical cancer screening may explain the high burden of cervical cancer in Haiti.


Asunto(s)
Papillomaviridae/genética , Infecciones por Papillomavirus/epidemiología , Adulto , Femenino , Genotipo , Haití/epidemiología , Humanos , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Conducta Sexual , Neoplasias del Cuello Uterino/epidemiología , Displasia del Cuello del Útero/epidemiología
11.
Reprod Health Matters ; 20(39): 93-103, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22789086

RESUMEN

This 2009 qualitative study investigated Haitian women's most pressing health needs, barriers to meeting those needs and proposed solutions, and how they thought the community and outside organizations should be involved in addressing their needs. The impetus for the study was to get community input into the development of a Family Health Centre in Leogane, Haiti. Individual interviews and focus group discussions were conducted with 52 adult women in six communities surrounding Leogane. The most pressing health needs named by the women were accessible, available and affordable health care, potable water, enough food to eat, improved economy, employment, sanitation and education, including health education. Institutional corruption, lack of infrastructure and social organization, the cost of health care, distance from services and lack of transport as barriers to care were also important themes. The involvement of foreign organizations and local community groups, including grassroots women's groups who would work in the best interests of other women, were identified as the most effective solutions. Organizations seeking to improve women's health care in Haiti should develop services and interventions that prioritize community partnership and leadership, foster partnerships with government, and focus on public health needs.


Asunto(s)
Accesibilidad a los Servicios de Salud/organización & administración , Evaluación de Necesidades , Salud de la Mujer , Adulto , Femenino , Abastecimiento de Alimentos , Haití , Educación en Salud , Accesibilidad a los Servicios de Salud/economía , Humanos , Persona de Mediana Edad , Investigación Cualitativa , Características de la Residencia , Saneamiento , Apoyo Social , Factores Socioeconómicos , Abastecimiento de Agua
12.
Reprod Toxicol ; 33(4): 419-427, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21736937

RESUMEN

A total of 256 men were studied to evaluate whether serum concentrations of perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) impacted semen quality or reproductive hormones. Blood and semen were collected and analyzed for perfluorochemicals and reproductive and thyroid hormones. Semen quality was assessed using standard clinical methods. Linear and logistic modeling was performed with semen profile measurements as outcomes and PFOS and PFOA in semen and plasma as explanatory variables. Adjusting for age, abstinence, and tobacco use, there was no indication that PFOA or PFOS was significantly associated with volume, sperm concentration, percent motility, swim-up motility and concentration, and directional motility (a function of motility and modal progression). Follicle-stimulating hormone was not associated with either PFOA or PFOS. Luteinizing hormone was positively correlated with plasma PFOA and PFOS, but not semen PFOS. Important methodological concerns included the lack of multiple hormonal measurements necessary to address circadian rhythms.


Asunto(s)
Ácidos Alcanesulfónicos/análisis , Caprilatos/análisis , Contaminantes Ambientales/análisis , Fluorocarburos/análisis , Semen/química , Ácidos Alcanesulfónicos/sangre , Ácidos Alcanesulfónicos/toxicidad , Caprilatos/sangre , Caprilatos/toxicidad , Cromatografía Líquida de Alta Presión , Estudios Transversales , Exposición a Riesgos Ambientales/análisis , Contaminantes Ambientales/sangre , Contaminantes Ambientales/toxicidad , Fluorocarburos/sangre , Fluorocarburos/toxicidad , Hormona Folículo Estimulante/metabolismo , Humanos , Hormona Luteinizante/metabolismo , Masculino , North Carolina , Semen/efectos de los fármacos , Semen/metabolismo , Recuento de Espermatozoides , Motilidad Espermática/efectos de los fármacos , Espectrometría de Masas en Tándem , Hormonas Tiroideas/metabolismo
13.
Opt Express ; 19(19): 17908-24, 2011 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-21935155

RESUMEN

Quantitative optical spectroscopy has the potential to provide an effective low cost, and portable solution for cervical pre-cancer screening in resource-limited communities. However, clinical studies to validate the use of this technology in resource-limited settings require low power consumption and good quality control that is minimally influenced by the operator or variable environmental conditions in the field. The goal of this study was to evaluate the effects of two sources of potential error: calibration and pressure on the extraction of absorption and scattering properties of normal cervical tissues in a resource-limited setting in Leogane, Haiti. Our results show that self-calibrated measurements improved scattering measurements through real-time correction of system drift, in addition to minimizing the time required for post-calibration. Variations in pressure (tested without the potential confounding effects of calibration error) caused local changes in vasculature and scatterer density that significantly impacted the tissue absorption and scattering properties Future spectroscopic systems intended for clinical use, particularly where operator training is not viable and environmental conditions unpredictable, should incorporate a real-time self-calibration channel and collect diffuse reflectance spectra at a consistent pressure to maximize data integrity.


Asunto(s)
Detección Precoz del Cáncer/instrumentación , Análisis Espectral/instrumentación , Neoplasias del Cuello Uterino/diagnóstico , Ácido Acético , Adulto , Calibración , Detección Precoz del Cáncer/métodos , Detección Precoz del Cáncer/estadística & datos numéricos , Femenino , Haití , Humanos , Persona de Mediana Edad , Método de Montecarlo , Dispositivos Ópticos , Fantasmas de Imagen , Presión , Sensibilidad y Especificidad , Análisis Espectral/métodos , Análisis Espectral/estadística & datos numéricos , Frotis Vaginal
14.
J Virol Methods ; 176(1-2): 112-4, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21640138

RESUMEN

The analytic performance of a low-cost, research-stage DNA test for the most carcinogenic human papillomavirus (HPV) genotypes (HPV16, HPV18, and HPV45) in aggregate was evaluated among carcinogenic HPV-positive women, which might be used to decide who needs immediate colposcopy in low-resource settings ("triage test"). We found that HPV16/18/45 test agreed well with two DNA tests, a GP5+/6+ genotyping assay (Kappa = 0.77) and a quantitative PCR assay (at a cutpoint of 5000 viral copies) (Kappa = 0.87). DNA sequencing on a subset of 16 HPV16/18/45 positive and 16 HPV16/18/45 negative verified the analytic specificity of the research test. It is concluded that the HPV16/18/45 assay is a promising triage test with a minimum detection of approximately 5000 viral copies, the clinically relevant threshold.


Asunto(s)
Papillomavirus Humano 16/genética , Papillomavirus Humano 18/clasificación , Papillomavirus Humano 18/genética , Infecciones por Papillomavirus/virología , Reacción en Cadena de la Polimerasa/métodos , Displasia del Cuello del Útero/virología , Neoplasias del Cuello Uterino/virología , Cuello del Útero/virología , Colposcopía , ADN Viral/análisis , Femenino , Papillomavirus Humano 16/clasificación , Papillomavirus Humano 16/aislamiento & purificación , Papillomavirus Humano 18/aislamiento & purificación , Humanos , Proyectos Piloto
15.
Cell Commun Signal ; 8: 10, 2010 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-20537183

RESUMEN

BACKGROUND: Uterine leiomyomas (fibroids) are benign smooth muscle tumors that often contain an excessive extracellular matrix (ECM). In the present study, we investigated the interactions between human uterine leiomyoma (UtLM) cells and uterine leiomyoma-derived fibroblasts (FB), and their importance in cell growth and ECM protein production using a coculture system. RESULTS: We found enhanced cell proliferation, and elevated levels of ECM collagen type I and insulin-like growth factor-binding protein-3 after coculturing. There was also increased secretion of vascular endothelial growth factor, epidermal growth factor, fibroblast growth factor-2, and platelet derived growth factor A and B in the media of UtLM cells cocultured with FB. Protein arrays revealed increased phosphorylated receptor tyrosine kinases (RTKs) of the above growth factor ligands, and immunoblots showed elevated levels of the RTK downstream effector, phospho-mitogen activated protein kinase 44/42 in cocultured UtLM cells. There was also increased secretion of transforming growth factor-beta 1 and 3, and immunoprecipitated transforming growth factor-beta receptor I from cocultured UtLM cells showed elevated phosphoserine expression. The downstream effectors phospho-small mothers against decapentaplegic -2 and -3 protein (SMAD) levels were also increased in cocultured UtLM cells. However, none of the above effects were seen in normal myometrial cells cocultured with FB. The soluble factors released by tumor-derived fibroblasts and/or UtLM cells, and activation of the growth factor receptors and their pathways stimulated the proliferation of UtLM cells and enhanced the production of ECM proteins. CONCLUSIONS: These data support the importance of interactions between fibroid tumor cells and ECM fibroblasts in vivo, and the role of growth factors, and ECM proteins in the pathogenesis of uterine fibroids.

16.
Fertil Steril ; 94(7): 2766-8, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-20542264

RESUMEN

OBJECTIVE: To prove the safety and feasibility of evaluating pelvic anatomy with a new imaging technique called saline intraperitoneal sonogram (SIPS). DESIGN: Prospective clinical case series. SETTING: Outpatient fertility clinic. PATIENT(S): Ten women with unexplained infertility and normal hysterosalpingograms (HSG). Five women with no known risk factors and five women with known risk factors for adhesive disease were enrolled. INTERVENTION(S): Step 1 required performing a sonohysterogram. Step 2 involved directing a 17-g oocyte retrieval needle into a pocket of peritoneal fluid under ultrasound guidance and infusing normal saline. The pelvic anatomy was evaluated with the three-dimensional and four-dimensional mode on pelvic ultrasound. MAIN OUTCOME MEASURE(S): Technical feasibility, safety, time, fluid infusion, and deficit volumes. RESULT(S): All 10 patients successfully completed the protocol. One of the five women with no risk factors for adhesive disease and a normal HSG was discovered to have a unilateral hydrosalpinx and filmy adhesive disease on SIPS. Both findings were confirmed on laparoscopy. Three out of the five women with known risk factors had abnormal SIPS imaging and were confirmed on laparoscopy to have significant adhesive disease. The average procedure time was 45 minutes (±15 minutes). CONCLUSION(S): This study demonstrates that SIPS is a safe, quick, and potentially cost-effective method for evaluating pelvic adhesive disease in an outpatient facility in women with unexplained infertility and a normal HSG.


Asunto(s)
Endosonografía/métodos , Pelvis/diagnóstico por imagen , Peritoneo/diagnóstico por imagen , Cloruro de Sodio , Adulto , Líquido Ascítico/diagnóstico por imagen , Estudios de Factibilidad , Femenino , Procedimientos Quirúrgicos Ginecológicos/métodos , Humanos , Infusiones Parenterales , Pelvis/patología , Enfermedades Peritoneales/diagnóstico por imagen , Enfermedades Peritoneales/patología , Peritoneo/patología , Cloruro de Sodio/administración & dosificación , Adherencias Tisulares/diagnóstico por imagen
17.
Fertil Steril ; 93(2): 499-509, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19061998

RESUMEN

OBJECTIVE: To describe fertility patients' preferences for disposition of cryopreserved embryos and determine factors important to these preferences. DESIGN: Cross-sectional survey conducted between June 2006 and July 2007. SETTING: Nine geographically diverse U.S. fertility clinics. PATIENT(S): 1020 fertility patients with cryopreserved embryos. INTERVENTION(S): Self-administered questionnaire. MAIN OUTCOME MEASURE(S): Likelihood of selecting each of five conventional embryo disposition options: store for reproduction, thaw and discard, donate to another couple, freeze indefinitely, and donate for research; likelihood of selecting each of two alternative options identified in previous research: placement of embryos in the woman's body at an infertile time, or a disposal ceremony; importance of each of 26 considerations to disposition decisions; and views on the embryo's moral status. RESULT(S): We found that 54% of respondents with cryopreserved embryos were very likely to use them for reproduction, 21% were very likely to donate for research, 7% or fewer were very likely to choose any other option. Respondents who ascribed high importance to concerns about the health or well-being of the embryo, fetus, or future child were more likely to thaw and discard embryos or freeze them indefinitely. CONCLUSION(S): Fertility patients frequently prefer disposition options that are not available to them or find the available options unacceptable. Restructuring and standardizing the informed consent process and ensuring availability of all disposition options may benefit patients, facilitate disposition decisions, and address problems of long-term storage.


Asunto(s)
Destinación del Embrión/estadística & datos numéricos , Fertilidad/fisiología , Adulto , Cognición , Estudios Transversales , Criopreservación/métodos , Investigaciones con Embriones/ética , Femenino , Fertilización In Vitro/ética , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Principios Morales , Grupos Raciales , Investigación , Encuestas y Cuestionarios , Estados Unidos
18.
Biophys J ; 97(9): 2379-87, 2009 Nov 04.
Artículo en Inglés | MEDLINE | ID: mdl-19883580

RESUMEN

Topical microbicide products are being developed for the prevention of sexually transmitted infections. These include vaginally-applied gels that deliver anti-HIV molecules. Gels may also provide partial barriers that slow virion diffusion from semen to vulnerable epithelium, increasing the time during which anti-HIV molecules can act. To explore the barrier function of microbicide gels, we developed a deterministic mathematical model for HIV diffusion through realistic gel distributions. We applied the model to experimental data for in vivo coating distributions of two vaginal gels in women. Time required for a threshold number of virions to reach the tissue surface was used as a metric for comparing different scenarios. Results delineated how time to threshold increased with increasing gel layer thickness and with decreasing diffusion coefficient. We note that for gel layers with average thickness > approximately 100 microm, the fractional area coated, rather than the gel layer thickness, was the primary determinant of time to threshold. For gel layers < approximately 100 microm, time to threshold was brief, regardless of fractional area coated. Application of the model to vaginal coating data showed little difference in time to threshold between the two gels tested. However, the protocol after gel application (i.e., with or without simulated coitus) had a much more significant effect. This study suggests that gel distribution in layers of thickness >100 microm and fractional area coated >0.8 is critical in determining the ability of the gel to serve as a barrier to HIV diffusion.


Asunto(s)
Antiinfecciosos Locales/administración & dosificación , Antiinfecciosos/administración & dosificación , Infecciones por VIH/transmisión , Cremas, Espumas y Geles Vaginales/administración & dosificación , Administración Intravaginal , Biofisica/métodos , Difusión , Femenino , Infecciones por VIH/prevención & control , Humanos , Modelos Anatómicos , Modelos Teóricos , Semen/virología
19.
Fertil Steril ; 91(3): 934.e19-22, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19022428

RESUMEN

OBJECTIVE: To report a case of successful treatment of a heterotopic cervical pregnancy from IVF-embryo transfer and intracytoplasmic sperm injection (ICSI) that resulted in uterine varices at the cervical site. DESIGN: Case report. SETTING: Tertiary university clinical center. PATIENT(S): A 34-year-old with a history of infertility associated with oligospermia who developed a heterotopic cervical pregnancy diagnosed at 7 weeks gestation. INTERVENTION(S): Transvaginal ultrasound (TVS)-guided aspiration of the cervical pregnancy; preoperative placement of bilateral hypogastric artery occlusion balloons; cesarean section. MAIN OUTCOME MEASURE(S): Successful delivery of intrauterine pregnancy; conservation of the uterus. RESULT(S): Successful termination of the cervical site pregnancy was achieved with TVS-guided aspiration. However, the pregnancy was then complicated by development of uterine varices at the cervical site noted on serial obstetric ultrasounds and magnetic resonance imaging (MRI). Successful management of the pregnancy required a multidisciplinary approach and preoperative placement of bilateral hypogastric artery occlusion balloons. A scheduled high fundal classic cesarean section at 37 weeks allowed for safe delivery of a healthy infant. Complete spontaneous resolution of the uterine varices was noted after the delivery. CONCLUSION(S): It is unclear whether residual ectopic tissue contributed to this later complication; however, it cannot be ignored that the locations of the aborted site and the prominence of dilated venous vasculature in this same location suggests a correlation. The interventions applied are reasonable conservative treatments of a cervical heterotopic pregnancy and a management strategy for uterine varices.


Asunto(s)
Aborto Terapéutico/métodos , Miometrio/irrigación sanguínea , Embarazo Ectópico/cirugía , Succión , Ultrasonografía Intervencional , Várices/etiología , Aborto Terapéutico/efectos adversos , Adulto , Oclusión con Balón , Cesárea , Transferencia de Embrión , Femenino , Fertilización In Vitro , Edad Gestacional , Hemostasis Quirúrgica/métodos , Humanos , Nacimiento Vivo , Imagen por Resonancia Magnética , Recuperación del Oocito , Inducción de la Ovulación , Hemorragia Posparto/etiología , Hemorragia Posparto/prevención & control , Embarazo , Embarazo Ectópico/diagnóstico por imagen , Inyecciones de Esperma Intracitoplasmáticas , Ultrasonografía Doppler en Color , Várices/patología
20.
Fertil Steril ; 87(5): 1225-6, 2007 May.
Artículo en Inglés | MEDLINE | ID: mdl-17418828

RESUMEN

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.


Asunto(s)
Cuidados Posoperatorios/instrumentación , Prótesis e Implantes , Vagina/anomalías , Vagina/cirugía , Femenino , Humanos , Cuidados Posoperatorios/métodos , Stents
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