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1.
J Assist Reprod Genet ; 40(3): 581-587, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36542313

RESUMO

PURPOSE: Infertility affects one in eight women in the USA. In vitro fertilization (IVF) is an effective but costly treatment that lacks uniform insurance coverage. We evaluated the current insurance coverage landscape for IVF in America. METHODS: We conducted a cross-sectional analysis of 58 insurance companies with the greatest state enrollment and market share, calculated to represent the majority of Americans with health insurance. Individual companies were evaluated for a publicly available policy on IVF services by web-based search, telephone interview, or email to the insurer. Coverage status, required criteria, qualifying risk factors, and contraindications to coverage were extracted from available policies. RESULTS: Fifty-one (88%) of the fifty-eight companies had a policy for IVF services. Thirty-five (69%) of these policies extended coverage. Case-by-case coverage was stated in seven policies (14%), while coverage was denied in the remaining nine (18%). The most common criterion to receive coverage was a documented diagnosis of infertility (n = 23, 66%), followed by care from a reproductive endocrinologist (n = 9, 26%). Twenty-three (45%) of the companies with a policy had at least one contraindication to coverage. Three companies (6%) limited the number of IVF cycles to be covered, capping payments after 3-4 lifetime cycles. CONCLUSION: Most Americans with health insurance are provided a public policy regarding IVF. However, there is great variation in coverage and requirements to receive coverage between insurers. Coupled with inconsistencies in state-level mandates and available choices for employer-sponsored plans, this may limit coverage of IVF services and, therefore, access to infertility treatment.


Assuntos
Fertilização in vitro , Infertilidade , Humanos , Feminino , Estados Unidos/epidemiologia , Estudos Transversais , Seguro Saúde , Infertilidade/epidemiologia , Infertilidade/terapia , Cobertura do Seguro
2.
PLoS Genet ; 13(1): e1006580, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28114310

RESUMO

Monospermic fertilization is mediated by the extracellular zona pellucida composed of ZP1, ZP2 and ZP3. Sperm bind to the N-terminus of ZP2 which is cleaved after fertilization by ovastacin (encoded by Astl) exocytosed from egg cortical granules to prevent sperm binding. AstlNull mice lack the post-fertilization block to sperm binding and the ability to rescue this phenotype with AstlmCherry transgenic mice confirms the role of ovastacin in providing a definitive block to polyspermy. During oogenesis, endogenous ovastacin traffics through the endomembrane system prior to storage in peripherally located cortical granules. Deletion mutants of ovastacinmCherry expressed in growing oocytes define a unique 7 amino acid motif near its N-terminus that is necessary and sufficient for cortical granule localization. Deletion of the 7 amino acids by CRISPR/Cas9 at the endogenous locus (AstlΔ) prevents cortical granule localization of ovastacin. The misdirected enzyme is present within the endomembrane system and ZP2 is prematurely cleaved. Sperm bind poorly to the zona pellucida of AstlΔ/Δ mice with partially cleaved ZP2 and female mice are sub-fertile.


Assuntos
Grânulos Citoplasmáticos/metabolismo , Fertilização , Metaloproteases/metabolismo , Oócitos/metabolismo , Sinais Direcionadores de Proteínas , Glicoproteínas da Zona Pelúcida/metabolismo , Animais , Feminino , Metaloproteases/química , Metaloproteases/genética , Camundongos , Transporte Proteico , Proteólise
3.
J Reprod Med ; 59(5-6): 255-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24937966

RESUMO

OBJECTIVE: To determine whether a fall in serum estradiol levels the day after human chorionic gonadotropin (hCG) administration correlated with the incidence of a positive serum hCG in fresh, nondonor assisted reproductive technology (ART) cycles. STUDY DESIGN: A total of 1,969 women undergoing fresh, nondonor ART cycles at a tertiary referral fertility clinic between January 1, 2003, and January 31, 2010, were included and retrospectively analyzed. Primary outcome measures were oocyte maturity and positive serum beta-hCG. RESULTS: A total of 1,969 cycles met inclusion criteria, of which 1,875 had the same or increasing serum estradiol levels and 94 had decreasing estradiol levels on the morning after hCG trigger administration (6-11 hours after hCG injection). There were no statistically significant differences between the groups with respect to age, baseline FSH levels, type of pituitary downregulation, total ampules of gonadotropin administered, days of stimulation, average number of oocytes retrieved, or oocyte maturity. Probability of pregnancy in women with declining E2 levels after hCG trigger administration did not differ from patients with the same or rising estradiol levels (53% vs. 54%, p = 0.89). CONCLUSION: Absolute change in estradiol levels the morning after beta-hCG administration were not predictive of positive hCG.


Assuntos
Gonadotropina Coriônica/administração & dosagem , Estradiol/sangue , Oócitos/fisiologia , Técnicas de Reprodução Assistida , Adulto , Gonadotropina Coriônica/sangue , Feminino , Fármacos para a Fertilidade Feminina/administração & dosagem , Fertilização in vitro , Hormônio Foliculoestimulante/sangue , Humanos , Leuprolida/administração & dosagem , Gravidez , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas
4.
Front Endocrinol (Lausanne) ; 14: 1195632, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37727455

RESUMO

Introduction: Fine-tuning of injectable gonadotropin doses during ovulation induction (OI) or ovarian stimulation (OS) treatment cycles with the aim of using doses low enough to minimize the risk of excessive ovarian response while maintaining optimal efficacy may be facilitated by using an adjustable-dose pen injector. We examined the incidence and magnitude of individualized gonadotropin dose adjustments made during cycles of OI or OS, followed by either timed intercourse or intrauterine insemination, with or without oral medications, and assessed the relationship between patient characteristics and dosing changes using real-world evidence. Methods: This was an observational, retrospective cohort study using electronic medical records from a large US database of fertility centers. Data from patients who had undergone a first recombinant human follicle stimulating hormone alfa (r-hFSH-alfa/follitropin alfa) treated OI/OS cycle followed by timed intercourse or intrauterine insemination between 2015 and 2016 were included. Percentages of OI/OS cycles involving r-hFSH-alfa dose adjustments (in increments of ±12.5 IU or greater) with or without oral medications (clomiphene citrate or letrozole) were analyzed. Results: Of 2,832 OI/OS cycles involving r-hFSH-alfa administration, 74.6% included combination treatment with orals; 25.4% involved r-hFSH-alfa alone. As expected, the starting dose of r-hFSH-alfa was lower for cycles that used r-hFSH-alfa with orals than r-hFSH-alfa only cycles (mean [SD]: 74.2 [39.31] vs 139.3 [115.10] IU). Dose changes occurred in 13.7% of r-hFSH-alfa with orals versus 43.9% of r-hFSH-alfa only cycles. Dose adjustment magnitudes ranged from ±12.5 IU to ±450 IU. The smallest adjustment magnitudes (±12.5 IU and ±25 IU) were used frequently and more often for dose increases than for dose decreases. For r-hFSH-alfa with orals and r-hFSH-alfa only cycles, the smallest adjustments were used in 53.5% and 64.5% of cycles with dose increases and in 35.7% and 46.8% of cycles with dose decreases, respectively. Discussion: In OI/OS cycles followed by timed intercourse or intrauterine insemination, r-hFSH-alfa dose adjustments were frequent. In cycles that included orals, r-hFSH-alfa starting doses were lower and dose changes were fewer than with r-hFSH-alfa alone. Smaller dose adjustments facilitate individualized treatment with the goal of reducing the risks of multiple gestation, cycle cancellation, and ovarian hyperstimulation syndrome.


Assuntos
Hormônio Foliculoestimulante Humano , Síndrome de Hiperestimulação Ovariana , Feminino , Humanos , Estudos Retrospectivos , Indução da Ovulação , Reprodução
5.
J Assist Reprod Genet ; 29(8): 703-12, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22584729

RESUMO

PURPOSE: Uterine leiomyomas are common, benign, reproductive tract tumors affecting a majority of reproductive aged women. They are associated with gynecologic morbidity and detrimentally affect reproductive potential. The etiology of leiomyomas is poorly understood and their diagnosis prior to treatment with Assisted Reproductive Technologies (ART) represents a management dilemma. The purpose of this paper is to review known genetic and molecular contributions to the etiologies of leiomyomas, describe their impact on ART outcomes and reproductive potential, and review alternative therapies and future directions in management. METHODS: A critical review of the literature pertaining to genetic component of uterine leiomyomas, their impact on ART and pregnancy and leiomyoma therapeutics was performed. RESULTS: Uterine leiomyomas are characterized by complex molecular mechanisms. Their location and size determines their potential detriment to ART and reproductive function and novel therapeutic modalities are being developed. CONCLUSION: The high prevalence of uterine leiomyomas and their potential detrimental influence on ART and reproductive function warrants continued well-designed studies to ascertain their etiology, optimal treatment and novel less morbid therapies.


Assuntos
Leiomioma/genética , Leiomioma/terapia , Técnicas de Reprodução Assistida , Feminino , Humanos , Mortalidade Infantil , Recém-Nascido , Leiomioma/etiologia , Gravidez , Complicações Neoplásicas na Gravidez/genética , Complicações Neoplásicas na Gravidez/terapia , Resultado da Gravidez , Prevalência , Miomectomia Uterina/métodos , Neoplasias Uterinas/genética , Neoplasias Uterinas/patologia , Neoplasias Uterinas/terapia
6.
Front Endocrinol (Lausanne) ; 12: 742089, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34956077

RESUMO

Purpose: To determine the pattern of dose adjustment of recombinant human follicle-stimulating hormone alfa (r-hFSH-alfa) during ovarian stimulation (OS) for assisted reproductive technology (ART) in a real-world setting. Methods: This was an observational, retrospective analysis of data from an electronic de-identified medical records database including 39 clinics in the USA. Women undergoing OS for ART (initiated 2009-2016) with r-hFSH-alfa (Gonal-f® or Gonal-f RFF Redi-ject®) were included. Assessed outcomes were patients' baseline characteristics and dosing characteristics/cycle. Results: Of 33,962 ART cycles, 13,823 (40.7%) underwent dose adjustments: 23.4% with ≥1 dose increase, 25.4% with ≥1 dose decrease, and 8.1% with ≥1 increase and ≥1 decrease. Patients who received dose adjustments were younger (mean [SD] age 34.8 [4.58] years versus 35.9 [4.60] years, p<0.0001) and had lower BMI (25.1 [5.45] kg/m2 versus 25.5 [5.45] kg/m2, p<0.0001) than those who received a constant dose. The proportion of patients with non-normal ovarian reserve was 38.4% for those receiving dose adjustment versus 51.9% for those with a constant dose. The mean (SD) number of dose changes/cycle was 1.61 (0.92) for cycles with any dose adjustment, 1.72 (1.03) for cycles with ≥1 dose increase, 2.77 (1.00) for cycles with ≥1 dose increase and ≥1 decrease (n=2,755), and 1.88 (1.03) for cycles with ≥1 dose decrease. Conclusions: Dose adjustment during OS is common in clinical practice in the USA and occurred more often in younger versus older patients, those with a high versus non-normal ovarian reserve or those with ovulation disorders/polycystic ovary syndrome versus other primary diagnoses of infertility.


Assuntos
Hormônio Foliculoestimulante Humano/administração & dosagem , Adulto , Fatores Etários , Índice de Massa Corporal , Bases de Dados Factuais , Feminino , Hormônio Foliculoestimulante Humano/uso terapêutico , Humanos , Indução da Ovulação , Padrões de Prática Médica , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/uso terapêutico , Técnicas de Reprodução Assistida , Estudos Retrospectivos , Estados Unidos
7.
Toxicol Sci ; 91(1): 255-64, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16484285

RESUMO

Phthalates are ubiquitous environmental contaminants that target the fetal and pubertal testis and lead to alterations in endocrine and spermatogenic function. Some features of phthalate-induced testicular injury suggest that phthalates alter Sertoli-germ cell adhesion and G protein signaling. Celsr2 is a unique protein that has structural characteristics of both an adhesion molecule and a G protein coupled receptor (GPCR) and has been demonstrated to function in Sertoli-germ cell adhesion. Within 2 h of a 1-g/kg mono-(2-ethylhexyl) phthalate (MEHP) exposure, in vivo Sertoli cell celsr2 localization was altered; celsr2 immunostaining became concentrated in the basal aspect of Sertoli cells, and then a diffuse pattern emerged. Because GPCRs are regulated by phosphorylation, the hypothesis that phthalate exposure induces the phosphorylation of celsr2 was tested by examining phosphorylation in celsr2-transfected HeLa cells treated with MEHP. At concentrations of 1 microM or greater, MEHP transiently increased celsr2 phosphorylation on serine/threonine residues; celsr2 phosphorylation was increased by 15 min of exposure and returned to control levels after 60 min. Cells exposed to the inactive phthalate monoester mono-methyl phthalate showed no change in celsr2 phosphorylation. In addition, phosphorylation of the endogenous HeLa cell GPCR, Chemokine Receptor 4 (CXCR4), was not altered by exposure to MEHP. Inhibition of protein kinase C or casein kinase 1 prevented MEHP-induced celsr2 phosphorylation, while inhibition of protein kinase A or mitogen-activated protein kinase had no effect. These data show that MEHP exposure rapidly alters testicular celsr2 immunolocalization as well as celsr2 posttranslational modification in a model cell line.


Assuntos
Caderinas/metabolismo , Caseína Quinase I/metabolismo , Dietilexilftalato/análogos & derivados , Proteína Quinase C/metabolismo , Dietilexilftalato/farmacologia , Imunofluorescência , Células HeLa , Humanos , Fosforilação , Receptores CXCR4/metabolismo
8.
Clin Cancer Res ; 11(12): 4357-64, 2005 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-15958618

RESUMO

PURPOSE: In a previous gene expression array study, we identified some 300 genes that were differentially expressed in human epidermal growth factor receptor tyrosine kinase 2 (HER2)-positive versus HER2-negative breast cancer cells. We have now done validation experiments on a group of three cell membrane components that had previously not been implicated in breast cancer. We also studied the expression of three other cell membrane proteins known to play a role in mammary neoplasia. EXPERIMENTAL DESIGN: By immunohistochemistry, we examined up to 130 archival breast carcinomas for Celsr2, E-cadherin, Kai1, and CD9 expression. The expression levels of NET-6 and TROP-2 were determined by quantitative reverse transcription-PCR in a subset of frozen tumors. We also studied fresh pellets and paraffin-embedded cell buttons of nine human breast cell lines. The relationship between the expression of all six membrane proteins and a variety of pathologic and biological variables, including estrogen receptor, HER2, and epidermal growth factor receptor status, was also examined. The NET-6 gene was transfected into a low-expressing cell line, and the effect on cellular morphology, growth, and invasion in vitro was recorded. RESULTS: Celsr2 was down-regulated in one cell line and in 7% of breast cancers. E-cadherin, Kai1, and CD9 were down-regulated in 35%, 76%, and 79% of tumors, respectively, confirming the important role of these markers in human mammary neoplasia. In breast cancer cell lines and tissues, TROP-2 was generally expressed at low levels, although a few specimens showed relative overexpression. NET-6 levels were lower in HER2-negative breast carcinoma cells. In addition, NET-6 was markedly down-regulated in estrogen receptor-negative breast cancers, and expression was lowest in "basal-like" tumors. Ectopic expression of NET-6 in low-expressing MDA-MB-231 cells altered cellular morphology, inhibited growth in vitro, and decreased invasion in a Boyden chamber assay. CONCLUSIONS: We have confirmed the expression of three new membrane markers that had previously not been implicated in human breast cancer, and one of them (NET-6) was correlated with HER2 and estrogen receptor status. NET-6 levels were decreased in estrogen receptor-negative and high-grade tumors, and ectopic expression of this gene had an inhibitory effect on proliferation and invasion. Thus, NET-6 may represent a novel breast cancer suppressor gene.


Assuntos
Biomarcadores Tumorais/análise , Neoplasias da Mama/patologia , Proteínas de Membrana/análise , Antígenos CD/análise , Antígenos de Neoplasias/genética , Biomarcadores Tumorais/genética , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Caderinas/análise , Moléculas de Adesão Celular/genética , Linhagem Celular Tumoral , Proliferação de Células , Regulação para Baixo , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Imuno-Histoquímica , Proteína Kangai-1 , Glicoproteínas de Membrana/análise , Proteínas de Membrana/genética , Proteínas Proto-Oncogênicas/análise , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Receptor ErbB-2/análise , Receptores de Estrogênio/análise , Reação em Cadeia da Polimerase Via Transcriptase Reversa/métodos , Tetraspanina 29 , Tetraspaninas
9.
Fertil Steril ; 106(5): 1093-1100.e3, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27341988

RESUMO

OBJECTIVE: To compare outcomes of in vitro fertilization (IVF) cycles with adequate versus inadequate response to the gonadotropin-releasing hormone (GnRH) agonist trigger rescued with the use of human chorionic gonadotropin (hCG) retrigger, and to identify risk factors associated with an inadequate trigger. DESIGN: Retrospective cohort study. SETTING: Private practice. PATIENT(S): Women at high risk for ovarian hyperstimulation syndrome who underwent an autologous IVF cycle and used GnRH agonist to trigger oocyte maturation before oocyte retrieval. INTERVENTION(S): Patients were triggered with GnRH agonist for final oocyte maturation before retrieval. Patients with an inadequate response, defined by low post-trigger serum LH and P concentrations or failure to recover oocytes after aspiration of several follicles, were retriggered with hCG. MAIN OUTCOME MEASURE(S): Number of oocytes retrieved, fertilization rate, clinical pregnancy, and live birth. RESULT(S): Two percent of patients triggered with GnRH agonist had an inadequate response and were retriggered with hCG. There was no statistically significant difference in clinical outcomes between the cycles that were retriggered with hCG and successful GnRH agonist triggers. Low body mass index, low baseline LH, and higher total dosage of gonadotropins required for stimulation were associated with an increased risk of having an inadequate response to the GnRH agonist trigger. CONCLUSION(S): A small minority of patients triggered with GnRH agonist had an inadequate response. Rescheduling of oocyte retrieval after hCG retrigger yielded similar IVF outcomes. Evaluation of trigger response based on serum LH and P concentrations is time dependent. Patient characteristics suggestive of hypothalamic hypofunction were predictive of an inadequate response to the GnRH agonist trigger.


Assuntos
Gonadotropina Coriônica/uso terapêutico , Fármacos para a Fertilidade Feminina/uso terapêutico , Hormônio Liberador de Gonadotropina/agonistas , Infertilidade/terapia , Leuprolida/uso terapêutico , Oócitos/efeitos dos fármacos , Ovário/efeitos dos fármacos , Indução da Ovulação/métodos , Adulto , Gonadotropina Coriônica/efeitos adversos , Feminino , Fertilidade , Fármacos para a Fertilidade Feminina/efeitos adversos , Fertilização in vitro , Humanos , Infertilidade/diagnóstico , Infertilidade/fisiopatologia , Nascido Vivo , Hormônio Luteinizante/sangue , Recuperação de Oócitos , Ovário/metabolismo , Ovário/fisiopatologia , Indução da Ovulação/efeitos adversos , Gravidez , Taxa de Gravidez , Progesterona/sangue , Retratamento , Estudos Retrospectivos , Fatores de Risco , Falha de Tratamento
10.
J Androl ; 26(4): 529-38, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15955893

RESUMO

Spermatogenesis requires Sertoli cell-germ cell adhesion for germ cell survival and maturation. Cadherins are a diverse superfamily of adhesion proteins; structurally unique members of this superfamily (celsr cadherins) are hybrid molecules containing extracellular cadherin repeats connected to a G protein-coupled receptor transmembrane motif. Here we demonstrate postnatal testicular mRNA expression of the 3 celsr paralogs (celsr1, celsr2, and celsr3), protein localization of celsr2 and celsr3, and functional analysis of celsr2 adhesion activity in primary Sertoli cell-germ cell co-cultures. Evaluation of celsr mRNA levels during a postnatal time course indicated that celsr1 and celsr2 were Sertoli cell and/or early-stage germ cell products, whereas celsr3 was expressed in later-stage germ cells. Cell type-specific expression was verified using the Sertoli cell line 93RS2, where celsr1 and celsr2 mRNA, but not celsr3, were detected. Immunostaining of testicular cryosections resulted in celsr2 protein localization to a spokelike pattern in the basal seminiferous epithelium and punctate figures in the apical epithelium, consistent with both Sertoli cell and germ cell expression. Celsr3 localized to punctate structures in the adluminal epithelium from postnatal day 40, consistent with elongate spermatid expression. The subcellular localization of celsr2 was examined further to define its localization in Sertoli cells and germ cells. Celsr2 localized to the Golgi complex in Sertoli cells and germ cells. In addition, germ cell celsr2 localized to a rab7-positive structure, which may be an endocytic compartment. Neither celsr2 nor celsr3 immunostaining was present at classic cadherin-based adhesion junctions. Nonetheless, the addition of a recombinant celsr2 protein fragment consisting of extracellular cadherin domains 4 through 8 to Sertoli cell-germ cell co-cultures resulted in germ cell detachment from Sertoli cells. Collectively, these data indicate that celsr cadherins have a cell type-specific expression pattern, and celsr2 may mediate Sertoli cell-germ cell adhesion outside of classic cadherin-based adhesion junctions.


Assuntos
Caderinas/metabolismo , Adesão Celular/fisiologia , Células de Sertoli/metabolismo , Espermatozoides/metabolismo , Testículo/metabolismo , Animais , Western Blotting , Células Cultivadas , Técnicas de Cocultura , Imuno-Histoquímica , Masculino , RNA Mensageiro/análise , Ratos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Testículo/citologia
11.
Exp Biol Med (Maywood) ; 229(1): 108-17, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14709783

RESUMO

In utero and lactational exposure to estrogenic agents has been shown to influence morphological and functional development of reproductive tissues. Thus, consumption of dietary phytoestrogens, such as isoflavones, during pregnancy and lactation could influence important periods of development, when the fetus and neonate are more sensitive to estrogen exposure. In this study, reproductive outcomes after developmental exposure to isoflavones were examined in Long-Evans rats maternally exposed to isoflavones via a commercial soy beverage or as the isolated isoflavone, genistein. Most reproductive endpoints examined at birth, weaning, and 2 months of age were not significantly modified in pups of either sex after lactational exposure to soy milk (provided to the dams in place of drinking water) from birth until weaning. However, soy milk exposure induced a significant increase in progesterone receptor (PR) in the uterine glandular epithelium of the 2-month-old pups. In pregnant dams treated with genistein (GEN; 15 mg/kg body weight) by gavage, from Gestational Day 14 through weaning, PR expression in the uterine glandular epithelium from 2-month-old GEN-treated females (postexposure) was also significantly increased. Diethylstilbesterol (DES) also stimulated uterine PR expression only in the glandular but not luminal epithelial cells. However, unlike DES, in utero/lactational exposure to GEN did not increase expression of the proliferation marker, proliferating cell nuclear antigen (PCNA), in the luminal epithelial cells of the 2-month-old rat uteri. These experiments demonstrate that developmental exposure to dietary isoflavones, at levels comparable to the ranges of human exposure, modify expression of the estrogen-regulated PR in the uterus of sexually mature rats weeks after exposure ended. Since the PR is essential for regulating key female reproductive processes, such as uterine proliferation, implantation, and maintenance of pregnancy, its increased expression suggests that soy phytoestrogen exposure during reproductive development may have long-term reproductive health consequences.


Assuntos
Genisteína/farmacologia , Leite de Soja/farmacologia , Útero/efeitos dos fármacos , Útero/fisiologia , Ração Animal , Animais , Animais Recém-Nascidos/crescimento & desenvolvimento , Animais Recém-Nascidos/metabolismo , Células Epiteliais/metabolismo , Feminino , Genitália Masculina/efeitos dos fármacos , Imuno-Histoquímica , Lactação , Masculino , Tamanho do Órgão/efeitos dos fármacos , Antígeno Nuclear de Célula em Proliferação/biossíntese , Ratos , Ratos Long-Evans , Receptores de Estrogênio/biossíntese , Receptores de Progesterona/biossíntese
12.
Fertil Steril ; 97(4): 795-801, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22463773

RESUMO

OBJECTIVE: To examine the history of superovulation for ovulation induction, its contributions to reproductive medicine, and its impact on multiple births. DESIGN: A search of the relevant literature using PubMed and other online tools. RESULT(S): Infertility has been a condition known and studied for thousands of years. However, it was not until this past century that effective treatments were developed. With the advancement of our knowledge of the hypothalamic-pituitary axis, therapies utilizing gonadotropins were developed to stimulate ovulation. Not only could we now treat anovulatory infertility but also induce superovulation for IVF. With these successes came consequences, including increased multiple pregnancies. Several countries recognized the high costs associated with multiple births and implemented regulations on the infertility industry. The rate of triplet and higher-order multiples has declined over the past decade. This is largely attributed to a decreased number of embryos transferred. Nonetheless, the twin rate has remained consistently high. CONCLUSION(S): Superovulation has become a routine medical therapy used for ovulation induction and IVF. With the development of this technology have come effective therapies for infertility and new ethical and medical challenges. Since the advent of gonadotropin therapy we have already developed technologies to improve monitoring and decrease hyperstimulation and high-order multiple pregnancies. In the future we anticipate new tools devised to optimize one embryo for one singleton live birth.


Assuntos
Fármacos para a Fertilidade Feminina/uso terapêutico , Gonadotropinas/uso terapêutico , Infertilidade/terapia , Indução da Ovulação , Gravidez Múltipla , Adulto , Transferência Embrionária , Feminino , Fármacos para a Fertilidade Feminina/efeitos adversos , Fármacos para a Fertilidade Feminina/história , Fertilização in vitro , Gonadotropinas/efeitos adversos , Gonadotropinas/história , História do Século XVI , História do Século XVIII , História do Século XIX , História do Século XX , História do Século XXI , Humanos , Infertilidade/história , Infertilidade/fisiopatologia , Prole de Múltiplos Nascimentos , Indução da Ovulação/efeitos adversos , Indução da Ovulação/história , Gravidez , Medição de Risco , Fatores de Risco , Superovulação , Resultado do Tratamento
13.
J Clin Endocrinol Metab ; 97(11): E2084-9, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22904181

RESUMO

CONTEXT: Adrenalectomy is an experimental treatment option for select patients with congenital adrenal hyperplasia who have failed medical therapy. After adrenalectomy, adrenal rest tissue can remain in extraadrenal locations, cause recurrent hyperandrogenism, and be difficult to localize. OBJECTIVE: The aim of the study was to investigate the usefulness of positron emission tomography/computerized tomography (PET/CT) in identifying adrenal rest tissue. SUBJECT: A female with salt-wasting 21-hydroxylase deficiency who had bilateral adrenalectomy at age 17 yr presented with hyperandrogenism at age 32 yr. Pelvic magnetic resonance imaging and ultrasound imaging were nondiagnostic for the source of androgen production. METHODS AND RESULTS: A baseline F-18 labeled fluoro-2-deoxy-d-glucose (18F-FDG) PET/CT scan showed no active uptake; however, a second scan preceded by a 250-µg cosyntropin injection identified three areas of active uptake near both ovaries. Subsequent ovarian venous sampling showed elevations in 17-hydroxyprogesterone, androstenedione, and 21-deoxycortisol in both ovarian veins compared to a peripheral vein at baseline and more so after cosyntropin administration. At laparoscopy, three well-circumscribed nodules (2.4 × 0.9 × 1.3 cm, 1.2 × 1.5 × 1.5 cm, and 2 × 1.5 × 1 cm) lying lateral to the fallopian tubes adjacent to the broad ligaments were removed. The paraovarian nodules and previously removed adrenal glands had similar histology and immunohistochemistry. Postoperatively, androgen concentrations were undetectable, with no response to cosyntropin stimulation. CONCLUSIONS: Patients with CAH after an adrenalectomy may experience recurrent hyperandrogenism due to adrenal rest tissue. 18F-FDG PET/CT with cosyntropin stimulation accurately identified adrenal rest tissue not visualized with conventional imaging, allowing for successful surgical resection.


Assuntos
Glândulas Suprarrenais/diagnóstico por imagem , Hiperplasia Suprarrenal Congênita/diagnóstico por imagem , Cosintropina , Glândulas Suprarrenais/cirurgia , Hiperplasia Suprarrenal Congênita/cirurgia , Adrenalectomia , Adulto , Feminino , Humanos , Imagem Multimodal , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X , Resultado do Tratamento
14.
Fertil Steril ; 94(7): 2507-13, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20378111

RESUMO

To show that disruption of meiotic competence results in cell cycle arrest, and the production of immature oocytes that are not capable of fertilization. Through an extensive review of animal studies and clinical case reports, we define the syndrome of oocyte maturation failure as a distinct oocyte disorder, present a classification system based on clinical parameters, and discuss the potential molecular origins for the disease.


Assuntos
Infertilidade Feminina/patologia , Oócitos/citologia , Oócitos/fisiologia , Técnicas de Reprodução Assistida , Zigoto/patologia , Animais , Técnicas de Cultura de Células/métodos , Diferenciação Celular/fisiologia , Feminino , Humanos , Infertilidade Feminina/etiologia , Mitose/fisiologia , Modelos Biológicos , Oogênese/fisiologia , Síndrome , Falha de Tratamento , Zigoto/citologia
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