Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 113
Filtrar
Mais filtros

Bases de dados
Tipo de documento
Intervalo de ano de publicação
1.
Am J Physiol Regul Integr Comp Physiol ; 317(6): R912-R920, 2019 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-31663769

RESUMO

Changes in pituitary-ovarian hormones across the menopausal transition have multiple physiological consequences. However, little is known about how the major types of postmenopausal hormone therapy (HT) affect pituitary-ovarian hormonal relationships. This study evaluated these relationships in recently menopausal women (52.45 ± 2.49 yr of age) in the Kronos Early Estrogen Prevention Study (KEEPS) who were compliant to randomized, double-blinded treatment with oral conjugated equine estrogen (o-CEE; n = 109), transdermal 17ß-estradiol (t-E2; n = 107), or placebo (n = 146). Androstenedione, testosterone, 17ß-estradiol, estrone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) were measured in serum before (baseline) and 48 mo after randomization to treatment. Descriptive summaries of hormone levels were performed, and multiple regression analyses were used to examine the effects of o-CEE, t-E2, and placebo on these hormone levels at 48 mo, adjusting for baseline levels. A network analysis examined the covariance of changes in hormone levels over the 48 mo within treatment groups. As expected, at 48 mo of treatment, hormone levels differed between women in the two active treatment groups compared with placebo, and network analysis indicated stronger relationships among hormone levels in the t-E2 and o-CEE groups compared with placebo. Associations among testosterone, 17ß-estradiol, FSH, and LH differed between the o-CEE group compared with t-E2 and placebo groups. Thus, two common HT regimens differentially alter pituitary-ovarian hormone levels, altering feedback cycles and interhormonal associations in recently menopausal women. These interactions provide the basis for future studies investigating the impact of hormonal modulation of aging, including cognitive decline in women.


Assuntos
Estradiol/farmacologia , Menopausa/fisiologia , Ovário/efeitos dos fármacos , Hipófise/efeitos dos fármacos , Administração Cutânea , Método Duplo-Cego , Estradiol/administração & dosagem , Terapia de Reposição de Estrogênios , Estrogênios/administração & dosagem , Estrogênios/farmacologia , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Pessoa de Meia-Idade , Ovário/fisiologia , Hipófise/fisiologia , Progesterona/sangue
2.
Clin Endocrinol (Oxf) ; 91(4): 553-560, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31306504

RESUMO

OBJECTIVE: To better characterize the metabolic alterations in various phenotypes of polycystic ovary syndrome (PCOS) in a large homogeneous (Sicilian) Mediterranean population with a low prevalence of obesity. DESIGN: Retrospective study. PATIENTS: A total of 1215 consecutively evaluated women with PCOS divided into four Rotterdam phenotypes (A, B, C and D) and in 108 matched ovulatory, nonhyperandrogenic women. MEASUREMENTS: BMI, fasting glucose, total cholesterol, HDL cholesterol, triglycerides, LDL cholesterol and an oral glucose tolerance test. RESULTS: The overall prevalence of obesity was 31%, metabolic syndrome 6.6%, diabetes 2.1%, altered glucose metabolism 13.1%, and abnormal lipid profile 60%. Phenotype B had the highest prevalence of obesity, metabolic syndrome, altered glucose metabolism and lipid abnormalities compared to other PCOS phenotypes and controls. Phenotype A was more obese and more women had metabolic syndrome compared to phenotypes C and D but phenotype C had a similar prevalence of altered glucose metabolism and lipid abnormalities compared to phenotype A which had a higher BMI. These metabolic abnormalities in A and C were higher compared to phenotype D and controls. Multivariate analysis showed that BMI predicts only abnormalities in fasting glucose and triglycerides, while there was no association with androgens. CONCLUSIONS: In Mediterranean women with PCOS from Sicily with a lower prevalence of obesity, the prevalence of diabetes, altered glucose metabolism and metabolic syndrome were much lower than reported in US studies. Phenotype B was the most metabolically affected phenotype, followed by phenotype A. Phenotype C had an intermediate disorder but with a high prevalence of altered glucose metabolism and lipid alterations. Only the normoandrogenic phenotype D had no metabolic abnormalities.


Assuntos
Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/metabolismo , Adulto , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Feminino , Teste de Tolerância a Glucose , Humanos , Estudos Retrospectivos , Sicília , Triglicerídeos/sangue , Adulto Jovem
3.
J Assist Reprod Genet ; 35(9): 1675-1682, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29704227

RESUMO

PURPOSE: To examine the effect of low and very low estradiol responses in oocyte donors receiving gonadotropins on clinical outcomes of donor in vitro fertilization (IVF) cycles and to identify possible mechanisms responsible for low estradiol response. METHODS: This is a retrospective cohort study of oocyte donors undergoing antagonist IVF cycles with progression to oocyte retrieval between January 2010 and December 2016 at a single urban academic fertility center. Oocyte yield, fertilization rate, blastocyst rate, percentage of normal embryos on preimplantation genetic screening (PGS), pregnancy outcomes, and follicular fluid steroid profiles were compared between donors with normal estradiol response and those with low estradiol response. RESULTS: Three hundred sixty-six antagonist oocyte donor IVF cycles were identified: 42 cycles had a normal estradiol response (NE2), defined as peak serum estradiol (E2) of over 200 pg/mL per retrieved oocyte; 140 cycles had an intermediate estradiol response (iE2), defined as peak serum E2 between 100 and 200 pg/mL per retrieved oocyte; 110 cycles had a low estradiol response (LE2), defined as peak serum E2 between 50 and 100 pg/mL per retrieved oocyte; and 74 cycles had a very low estradiol response (vLE2), defined as peak serum E2 less than 50 pg/mL per retrieved oocyte. LE2 cycles resulted in a greater number of mature oocytes (22.4 vs. 13.6, p < 0.017), and fertilizations versus NE2 donors (18.5 vs. 10.7, p < 0.017), although the number of transferred or cryopreserved blastocysts were similar between groups (8.6, 6.9 vs. 4.8, p = 0.095, p = 1). The percentage of chromosomally normal embryos after PGS was similar between LE2, vLE2, and NE2 cycles (66.4, 71.8 vs. 63.1%, p = 0.99, p = 1). Pregnancy outcomes were similar between LE2, vLE2, and NE2 cycles. Serum AMH obtained on the day of peak E2 was similar to baseline serum AMH and did not differ between LE2 versus NE2 cycles. Follicular fluid E2 levels paralleled serum E2 levels and were lower in LE2 cycles versus NE2 cycles. CONCLUSION: The prevalence of very low E2 responses in donors appears to be high (20.2%). In contrast to autologous IVF cycles, LE2 does not portend poor outcomes in oocyte donors.


Assuntos
Estradiol/metabolismo , Fertilização in vitro , Gonadotropinas/administração & dosagem , Oócitos/efeitos dos fármacos , Adulto , Blastocisto/efeitos dos fármacos , Feminino , Gonadotropinas/efeitos adversos , Humanos , Doação de Oócitos/métodos , Recuperação de Oócitos/métodos , Oócitos/crescimento & desenvolvimento , Indução da Ovulação/métodos , Gravidez , Resultado da Gravidez , Taxa de Gravidez , Diagnóstico Pré-Implantação
4.
Physiol Genomics ; 48(1): 33-41, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26508701

RESUMO

Prior to the initiation of menopausal hormone treatment (MHT), genetic variations in the innate immunity pathway were found to be associated with carotid artery intima-medial thickness (CIMT) and coronary arterial calcification (CAC) in women (n = 606) enrolled in the Kronos Early Estrogen Prevention Study (KEEPS). Whether MHT might affect these associations is unknown. The association of treatment outcomes with variation in the same 764 candidate genes was evaluated in the same KEEPS participants 4 yr after randomization to either oral conjugated equine estrogens (0.45 mg/day), transdermal 17ß-estradiol (50 µg/day), each with progesterone (200 mg/day) for 12 days each month, or placebo pills and patch. Twenty SNPs within the innate immunity pathway most related with CIMT after 4 yr were not among those associated with CIMT prior to MHT. In 403 women who completed the study in their assigned treatment group, single nucleotide polymorphisms (SNPs) within the innate immunity pathway were found to alter the treatment effect on 4 yr change in CIMT (i.e., significant interaction between treatment and genetic variation in the innate immunity pathway; P < 0.001). No SNPs by treatment effects were observed with changes of CAC >5 Agatston units after 4 yr. Results of this study suggest that hormonal status may interact with genetic variants to influence cardiovascular phenotypes, specifically, the pharmacogenomic effects within the innate immunity pathway for CIMT.


Assuntos
Calcinose/genética , Artérias Carótidas/patologia , Espessura Intima-Media Carotídea , Vasos Coronários/patologia , Estrogênios/farmacologia , Animais , Artérias Carótidas/efeitos dos fármacos , Intervalos de Confiança , Vasos Coronários/efeitos dos fármacos , Feminino , Estudos de Associação Genética , Cavalos , Humanos , Imunidade Inata/genética , Farmacogenética , Fenótipo , Polimorfismo de Nucleotídeo Único/genética , Fatores de Tempo
5.
Endocr Pract ; 22(3): 287-93, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26523627

RESUMO

OBJECTIVE: This study was designed to assess the value of serum anti-Müllerian hormone (AMH) in the diagnosis of polycystic ovary syndrome (PCOS) in various phenotypes and to assess ovarian ultrasound parameters. METHODS: We performed a retrospective matched controlled study of 113 females with various PCOS phenotypes and 47 matched controls. The diagnostic utility of AMH measurement and ovarian ultrasound were compared. Using receiver operating characteristic (ROC) curve analyses, the threshold for AMH (>4.7 ng/mL) and ultrasound parameters (follicle number per ovary [FNPO] >22 and ovarian volume [OV] >8 cc) were established. RESULTS: In the entire cohort, AMH had a low sensitivity of 79%; while FNPO and OV were 93% and 68%, respectively. Specificities ranged from 85 to 96%. In classic anovulatory PCOS, AMH exhibited a sensitivity of 91%, and for FNPO and OV the corresponding sensitivities were 92% and 72%. In the ovulatory phenotype, AMH sensitivity was only 50%, while FNPO and OV were 95% and 50%, respectively. In the nonhyperandrogenic phenotype, the sensitivity of AMH was 53% while those for FNPO and OV were 93% and 67%. CONCLUSION: AMH does not appear to be helpful for all subjects with PCOS but may be of some value in those who are anovulatory. However, FNPO was highly sensitive in all phenotypes, and was the single best criterion assessed for all subjects, suggesting the important role of ultrasound.


Assuntos
Hormônio Antimülleriano/sangue , Técnicas de Diagnóstico Endócrino , Ovário/diagnóstico por imagem , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/classificação , Síndrome do Ovário Policístico/diagnóstico por imagem , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Fenótipo , Curva ROC , Estudos Retrospectivos , Ultrassonografia , Adulto Jovem
6.
PLoS Med ; 12(6): e1001833; discussion e1001833, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26035291

RESUMO

BACKGROUND: Menopausal hormone therapy (MHT) reportedly increases the risk of cognitive decline in women over age 65 y. It is unknown whether similar risks exist for recently postmenopausal women, and whether MHT affects mood in younger women. The ancillary Cognitive and Affective Study (KEEPS-Cog) of the Kronos Early Estrogen Prevention Study (KEEPS) examined the effects of up to 4 y of MHT on cognition and mood in recently postmenopausal women. METHODS AND FINDINGS: KEEPS, a randomized, double-blinded, placebo-controlled clinical trial, was conducted at nine US academic centers. Of the 727 women enrolled in KEEPS, 693 (95.3%) participated in the ancillary KEEPS-Cog, with 220 women randomized to receive 4 y of 0.45 mg/d oral conjugated equine estrogens (o-CEE) plus 200 mg/d micronized progesterone (m-P) for the first 12 d of each month, 211 women randomized to receive 50 µg/d transdermal estradiol (t-E2) plus 200 mg/d m-P for the first 12 d of each month, and 262 women randomized to receive placebo pills and patches. Primary outcomes included the Modified Mini-Mental State examination; four cognitive factors: verbal learning/memory, auditory attention/working memory, visual attention/executive function, and speeded language/mental flexibility; and a mood measure, the Profile of Mood States (POMS). MHT effects were analyzed using linear mixed-effects (LME) models, which make full use of all available data from each participant, including those with missing data. Data from those with and without full data were compared to assess for potential biases resulting from missing observations. For statistically significant results, we calculated effect sizes (ESs) to evaluate the magnitude of changes. On average, participants were 52.6 y old, and 1.4 y past their last menstrual period. By month 48, 169 (24.4%) and 158 (22.8%) of the 693 women who consented for ancillary KEEPS-Cog were lost to follow-up for cognitive assessment (3MS and cognitive factors) and mood evaluations (POMS), respectively. However, because LME models make full use all available data, including data from women with missing data, 95.5% of participants were included in the final analysis (n = 662 in cognitive analyses, and n = 661 in mood analyses). To be included in analyses, women must have provided baseline data, and data from at least one post-baseline visit. The mean length of follow-up was 2.85 y (standard deviation [SD] = 0.49) for cognitive outcomes and 2.76 (SD = 0.57) for mood outcomes. No treatment-related benefits were found on cognitive outcomes. For mood, model estimates indicated that women treated with o-CEE showed improvements in depression and anxiety symptoms over the 48 mo of treatment, compared to women on placebo. The model estimate for the depression subscale was -5.36 × 10(-2) (95% CI, -8.27 × 10(-2) to -2.44 × 10(-2); ES = 0.49, p < 0.001) and for the anxiety subscale was -3.01 × 10(-2) (95% CI, -5.09 × 10(-2) to -9.34 × 10(-3); ES = 0.26, p < 0.001). Mood outcomes for women randomized to t-E2 were similar to those for women on placebo. Importantly, the KEEPS-Cog results cannot be extrapolated to treatment longer than 4 y. CONCLUSIONS: The KEEPS-Cog findings suggest that for recently postmenopausal women, MHT did not alter cognition as hypothesized. However, beneficial mood effects with small to medium ESs were noted with 4 y of o-CEE, but not with 4 y of t-E2. The generalizability of these findings is limited to recently postmenopausal women with low cardiovascular risk profiles. TRIAL REGISTRATION: ClinicalTrials.gov NCT00154180 and NCT00623311.


Assuntos
Cognição/efeitos dos fármacos , Terapia de Reposição de Estrogênios , Transtornos do Humor/tratamento farmacológico , Pós-Menopausa , Método Duplo-Cego , Estradiol/uso terapêutico , Estrogênios Conjugados (USP)/uso terapêutico , Feminino , Humanos , Pessoa de Meia-Idade , Progesterona/uso terapêutico , Escalas de Graduação Psiquiátrica , Fatores de Risco , Estados Unidos
7.
N Engl J Med ; 366(26): 2483-91, 2012 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-22738098

RESUMO

BACKGROUND: Live-birth rates after treatment with assisted reproductive technology have traditionally been reported on a per-cycle basis. For women receiving continued treatment, cumulative success rates are a more important measure. METHODS: We linked data from cycles of assisted reproductive technology in the Society for Assisted Reproductive Technology Clinic Outcome Reporting System database for the period from 2004 through 2009 to individual women in order to estimate cumulative live-birth rates. Conservative estimates assumed that women who did not return for treatment would not have a live birth; optimal estimates assumed that these women would have live-birth rates similar to those for women continuing treatment. RESULTS: The data were from 246,740 women, with 471,208 cycles and 140,859 live births. Live-birth rates declined with increasing maternal age and increasing cycle number with autologous, but not donor, oocytes. By the third cycle, the conservative and optimal estimates of live-birth rates with autologous oocytes had declined from 63.3% and 74.6%, respectively, for women younger than 31 years of age to 18.6% and 27.8% for those 41 or 42 years of age and to 6.6% and 11.3% for those 43 years of age or older. When donor oocytes were used, the rates were higher than 60% and 80%, respectively, for all ages. Rates were higher with blastocyst embryos (day of transfer, 5 or 6) than with cleavage embryos (day of transfer, 2 or 3). At the third cycle, the conservative and optimal estimates of cumulative live-birth rates were, respectively, 42.7% and 65.3% for transfer of cleavage embryos and 52.4% and 80.7% for transfer of blastocyst embryos when fresh autologous oocytes were used. CONCLUSIONS: Our results indicate that live-birth rates approaching natural fecundity can be achieved by means of assisted reproductive technology when there are favorable patient and embryo characteristics. Live-birth rates among older women are lower than those among younger women when autologous oocytes are used but are similar to the rates among young women when donor oocytes are used. (Funded by the National Institutes of Health and the Society for Assisted Reproductive Technology.).


Assuntos
Coeficiente de Natalidade , Fertilidade , Nascido Vivo , Técnicas de Reprodução Assistida , Adulto , Feminino , Humanos , Idade Materna , Pessoa de Meia-Idade , Doação de Oócitos/estatística & dados numéricos , Gravidez , Transplante Autólogo/estatística & dados numéricos
8.
Ann Intern Med ; 161(4): 249-60, 2014 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-25069991

RESUMO

BACKGROUND: Whether menopausal hormone therapy (MHT) protects against cardiovascular disease (CVD) remains unclear. OBJECTIVE: To assess atherosclerosis progression and CVD risk factors after MHT initiated in early menopause. DESIGN: Randomized, controlled trial. (ClinicalTrials.gov: NCT00154180). SETTING: Nine U.S. academic centers. PARTICIPANTS: Healthy menopausal women aged 42 to 58 years between 6 and 36 months from last menses without prior CVD events who had a coronary artery calcium (CAC) score less than 50 Agatston units and had not received estrogen or lipid-lowering therapy for at least 90 days. INTERVENTION: Oral conjugated equine estrogens (o-CEE), 0.45 mg/d, or transdermal 17ß-estradiol (t-E2), 50 mcg/d, each with 200 mg of oral progesterone for 12 days per month, or placebo for 48 months. MEASUREMENTS: Primary end point was annual change in carotid artery intima-media thickness (CIMT). Secondary end points included changes in markers of CVD risk. RESULTS: Of 727 randomly assigned women, 89.3% had at least 1 follow-up CIMT and 79.8% had CIMT at 48 months. Mean CIMT increases of 0.007 mm/y were similar across groups. The percentages of participants in whom CAC score increased did not differ significantly across groups. No changes in blood pressure were observed with o-CEE or t-E2. Low- and high-density lipoprotein cholesterol levels improved and levels of C-reactive protein and sex hormone-binding globulin but not interleukin-6 increased with o-CEE. Insulin resistance decreased with t-E2. Serious adverse events did not differ by treatment. LIMITATION: Power to compare clinical events was insufficient. CONCLUSION: Four years of early MHT did not affect progression of atherosclerosis despite improving some markers of CVD risk. PRIMARY FUNDING SOURCE: Aurora Foundation.


Assuntos
Espessura Intima-Media Carotídea , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/prevenção & controle , Terapia de Reposição de Estrogênios , Pós-Menopausa/fisiologia , Administração Cutânea , Administração Oral , Adulto , Proteína C-Reativa/metabolismo , Progressão da Doença , Método Duplo-Cego , Estradiol/efeitos adversos , Estradiol/uso terapêutico , Terapia de Reposição de Estrogênios/efeitos adversos , Estrogênios/sangue , Estrogênios Conjugados (USP)/efeitos adversos , Estrogênios Conjugados (USP)/uso terapêutico , Feminino , Humanos , Resistência à Insulina , Lipídeos/sangue , Pessoa de Meia-Idade , Pós-Menopausa/efeitos dos fármacos , Progesterona/uso terapêutico , Radiografia , Fatores de Risco , Globulina de Ligação a Hormônio Sexual/metabolismo
9.
Menopause ; 31(1): 10-17, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37989141

RESUMO

OBJECTIVE: This study aimed to determine long-term cardiometabolic effects of hormone therapies initiated within 3 years of onset of menopause after a 14-year follow-up study of participants of the Kronos Early Estrogen Prevention Study (KEEPS). METHODS: KEEPS was a multisite clinical trial that recruited recently menopausal women with good cardiovascular health for randomization to oral conjugated equine estrogens (Premarin, 0.45 mg/d) or transdermal 17ß-estradiol (Climara, 50 µg/d) both with micronized progesterone (Prometrium, 200 mg/d) for 12 d/mo, or placebo pills and patch for 4 years. KEEPS continuation recontacted KEEPS participants 14 years after randomization and 10 years after the completion of the 4-year clinical trial to attend in-person clinic visits. RESULTS: Participants of KEEPS continuation (n = 299 of the 727 KEEPS participants; 41%) had an average age of 67 years (range, 58-73 y). Measurements of systolic and diastolic blood pressures, waist-to-hip ratio, fasting levels of glucose, insulin, lipid profiles, and homeostasis model assessment of insulin resistance were not different among the treatment groups at either KEEPS baseline or at KEEPS continuation visits, or for change between these two visits. The frequency of self-reported diabetes ( P = 0.007) and use of diabetes medications was higher in the placebo than the oral conjugated equine estrogens ( P = 0.045) or transdermal 17ß-estradiol ( P = 0.02) groups, but these differences were not supported by the laboratory measurements of glycemia or insulin resistance. CONCLUSIONS: There was no evidence of cardiovascular and/or metabolic benefits or adverse effects associated with 4 years use of oral or transdermal forms of hormone therapy by recently menopausal women with good cardiovascular health after 10 years.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Terapia de Reposição de Estrogênios , Resistência à Insulina , Idoso , Feminino , Humanos , Administração Cutânea , Doenças Cardiovasculares/prevenção & controle , Diabetes Mellitus/etiologia , Estradiol , Terapia de Reposição de Estrogênios/efeitos adversos , Estrogênios , Estrogênios Conjugados (USP)/uso terapêutico , Seguimentos , Progesterona
10.
Physiol Genomics ; 45(2): 79-88, 2013 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-23188791

RESUMO

Menopausal hormone treatment (MHT) may limit progression of cardiovascular disease (CVD) but poses a thrombosis risk. To test targeted candidate gene variation for association with subclinical CVD defined by carotid artery intima-media thickness (CIMT) and coronary artery calcification (CAC), 610 women participating in the Kronos Early Estrogen Prevention Study (KEEPS), a clinical trial of MHT to prevent progression of CVD, were genotyped for 13,229 single nucleotide polymorphisms (SNPs) within 764 genes from anticoagulant, procoagulant, fibrinolytic, or innate immunity pathways. According to linear regression, proportion of European ancestry correlated negatively, but age at enrollment and pulse pressure correlated positively with CIMT. Adjusting for these variables, two SNPs, one on chromosome 2 for MAP4K4 gene (rs2236935, ß = 0.037, P value = 2.36 × 10(-06)) and one on chromosome 5 for IL5 gene (rs739318, ß = 0.051, P value = 5.02 × 10(-05)), associated positively with CIMT; two SNPs on chromosome 17 for CCL5 (rs4796119, ß = -0.043, P value = 3.59 × 10(-05); rs2291299, ß = -0.032, P value = 5.59 × 10(-05)) correlated negatively with CIMT; only rs2236935 remained significant after correcting for multiple testing. Using logistic regression, when we adjusted for waist circumference, two SNPs (rs11465886, IRAK2, chromosome 3, OR = 3.91, P value = 1.10 × 10(-04); and rs17751769, SERPINA1, chromosome 14, OR = 1.96, P value = 2.42 × 10(-04)) associated positively with a CAC score of >0 Agatston unit; one SNP (rs630014, ABO, OR = 0.51, P value = 2.51 × 10(-04)) associated negatively; none remained significant after correcting for multiple testing. Whether these SNPs associate with CIMT and CAC in women randomized to MHT remains to be determined.


Assuntos
Calcinose/genética , Espessura Intima-Media Carotídea , Doença da Artéria Coronariana/genética , Polimorfismo de Nucleotídeo Único/genética , Adulto , Feminino , Predisposição Genética para Doença , Humanos , Interleucina-5/genética , Peptídeos e Proteínas de Sinalização Intracelular/genética , Pessoa de Meia-Idade , Proteínas Serina-Treonina Quinases/genética
11.
Menopause ; 30(5): 480-489, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36809193

RESUMO

OBJECTIVE: A phase 2 study showed that 15 mg estetrol (E4) alleviates vasomotor symptoms (VMS). Here, we present the effects of E4 15 mg on vaginal cytology, genitourinary syndrome of menopause, and health-related quality of life. METHODS: In a double-blind, placebo-controlled study, postmenopausal participants (n = 257, 40-65 y) were randomized to receive E4 2.5, 5, 10, or 15 mg or placebo once daily for 12 weeks. Outcomes were the vaginal maturation index and maturation value, genitourinary syndrome of menopause score, and the Menopause Rating Scale to assess health-related quality of life. We focused on E4 15 mg, the dose studied in ongoing phase 3 trials, and tested its effect versus placebo at 12 weeks using analysis of covariance. RESULTS: Least square (LS) mean percentages of parabasal and intermediate cells decreased, whereas superficial cells increased across E4 doses; for E4 15 mg, the respective changes were -10.81% ( P = 0.0017), -20.96% ( P = 0.0037), and +34.17% ( P < 0.0001). E4 15 mg decreased LS mean intensity score for vaginal dryness and dyspareunia (-0.40, P = 0.03, and -0.47, P = 0.0006, respectively); symptom reporting decreased by 41% and 50%, respectively, and shifted to milder intensity categories. The overall Menopause Rating Scale score decreased with E4 15 mg (LS mean, -3.1; P = 0.069) and across doses was associated with a decreasing frequency and severity of VMS ( r = 0.34 and r = 0.31, P < 0.001). CONCLUSIONS: E4 demonstrated estrogenic effects in the vagina and decreased signs of atrophy. E4 15 mg is a promising treatment option also for important menopausal symptoms other than VMS.


Assuntos
Estetrol , Doenças Vaginais , Feminino , Humanos , Estetrol/farmacologia , Pós-Menopausa , Qualidade de Vida , Vulva/patologia , Menopausa , Vagina/patologia , Doenças Vaginais/tratamento farmacológico , Doenças Vaginais/patologia , Método Duplo-Cego , Atrofia/tratamento farmacológico , Atrofia/patologia , Resultado do Tratamento
12.
Cardiovasc Diabetol ; 11: 52, 2012 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-22587616

RESUMO

BACKGROUND: The published literature regarding the relationships between retinol-binding protein 4 (RBP4) and cardiometabolic risk factors and subclinical atherosclerosis is conflicting, likely due, in part, to limitations of frequently used RBP4 assays. Prior large studies have not utilized the gold-standard western blot analysis of RBP4 levels. METHODS: Full-length serum RBP4 levels were measured by western blot in 709 postmenopausal women screened for the Kronos Early Estrogen Prevention Study. Cross-sectional analyses related RBP4 levels to cardiometabolic risk factors, carotid artery intima-media thickness (CIMT), and coronary artery calcification (CAC). RESULTS: The mean age of women was 52.9 (± 2.6) years, and the median RBP4 level was 49.0 (interquartile range 36.9-61.5) µg/mL. Higher RBP4 levels were weakly associated with higher triglycerides (age, race, and smoking-adjusted partial Spearman correlation coefficient = 0.10; P = 0.01), but were unrelated to blood pressure, cholesterol, C-reactive protein, glucose, insulin, and CIMT levels (all partial Spearman correlation coefficients ≤0.06, P > 0.05). Results suggested a curvilinear association between RBP4 levels and CAC, with women in the bottom and upper quartiles of RBP4 having higher odds of CAC (odds ratio [95% confidence interval] 2.10 [1.07-4.09], 2.00 [1.02-3.92], 1.64 [0.82-3.27] for the 1st, 3rd, and 4th RBP4 quartiles vs. the 2nd quartile). However, a squared RBP4 term in regression modeling was non-significant (P = 0.10). CONCLUSIONS: In these healthy, recently postmenopausal women, higher RBP4 levels were weakly associated with elevations in triglycerides and with CAC, but not with other risk factors or CIMT. These data using the gold standard of RBP4 methodology only weakly support the possibility that perturbations in RBP4 homeostasis may be an additional risk factor for subclinical coronary atherosclerosis. TRIAL REGISTRATION: ClinicalTrials.gov number NCT00154180.


Assuntos
Aterosclerose/sangue , Pós-Menopausa/sangue , Proteínas Plasmáticas de Ligação ao Retinol/análise , Adulto , Idoso , Aterosclerose/diagnóstico , Biomarcadores , Glicemia/análise , Pressão Sanguínea , Proteína C-Reativa/análise , Espessura Intima-Media Carotídea , Doença das Coronárias/diagnóstico por imagem , Estudos Transversais , Método Duplo-Cego , Feminino , Terapia de Reposição Hormonal , Humanos , Insulina/sangue , Estilo de Vida , Lipídeos/sangue , Pessoa de Meia-Idade , Obesidade/sangue , Radiografia , Fatores de Risco
13.
Diagnostics (Basel) ; 12(10)2022 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-36292002

RESUMO

Polycystic Ovary Syndrome (PCOS) represents a heterogeneous disorder and, using Rotterdam diagnostic criteria, four main phenotypes (A, B, C, and D) have been distinguished. However, it remains unclear whether lean versus obesity status influences findings in the various phenotypes of women with PCOS. 274 women with PCOS were consecutively assessed. Among these women, there were 149 with phenotype A, 24 with phenotype B, 94 with phenotype C, and 7 with phenotype D. We found normal body weight to be very common (65%) in phenotype C patients, common (43%) in phenotype A and D patients, and less represented (but still 25%) in phenotype B patients. Obesity was common in phenotype B (54%) and phenotype A (33%) patients and uncommon in phenotype C (only 11%) and phenotype D (14%) patients. Obese and lean patients of each phenotype were compared. Compared to the phenotype C PCOS patients, both phenotype A and B patients had higher total testosterone circulating values and higher luteinizing hormone/follicle stimulating hormone (LH/FSH) ratio (p < 0.01) while anti-Mullerian hormone (AMH) levels were higher only in phenotype A PCOS patients. Instead, in the three obese PCOS phenotypes no differences in serum insulin, Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) calculation, and lipid blood values were observed. Analysis of data of lean patients gave similar results. Compared to the phenotype C PCOS patients, both phenotype A and B patients had higher total testosterone circulating values and higher LH/FSH ratio (p < 0.01) while AMH levels were higher only in phenotype A PCOS patients. However, no differences were observed in the circulating insulin levels, HOMA-IR calculation, or blood lipids between the three groups of lean PCOS patients. We conclude that Rotterdam phenotypes express the differences between PCOS patients in terms of ovulatory pattern and androgen secretion but fail to differentiate between obese patients with altered metabolic patterns and lean patients with normal metabolic patterns. A new classification of PCOS patients is needed and it should consider the influence of body weight on the metabolic patterns of PCOS patients.

14.
F S Rep ; 3(1): 3-7, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35386504

RESUMO

The availability of direct-to-consumer (DTC) testing has dramatically increased over the past 2 decades, particularly those targeted at reproduction and fertility. Several ethical concerns exist with regard to DTC tests, including the lack of governmental regulation and consumer protection, standardized laboratory methodology, and clinical validity and actionability. Physicians must familiarize themselves with the pitfalls of DTC tests to best aid patients in interpreting DTC test results and guide them toward evidence-based treatment plans.

15.
J Endocr Soc ; 6(3): bvac003, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35155970

RESUMO

In endocrine and reproductive endocrine literature, adult female acne is considered as a possible clinical expression of hyperandrogenism, with most polycystic ovary syndrome (PCOS) guidelines considering acne as a condition of androgen excess. Adult female acne, however, in the dermatological literature is considered as an inflammatory skin disease and new guidelines on adult female acne have been produced by dermatological societies, with little perspective from any endocrine or reproductive endocrine points of view. An expert task force was appointed by the AE-PCOS society to determine the current state of knowledge and provide evidence-based recommendations that could be valid for all specialists taking care of female adult acne. The following are the recommendations (level of evidence A or B): (1) diagnosis of female adult acne is mainly clinical, but a grading tool is needed for optimizing the treatment; (2) measurement of serum androgen values (total testosterone, free testosterone, and dehydroepiandrosterone sulfate) by high-quality assays is recommended in all women with adult acne; (3) in women with adult acne and proven hyperandrogenism, oral combined estroprogestins should be added to the topical or systemic treatment of acne, independently of severity of acne; (4) all second- and third-generation estroprogestins may be used, independently of the estrogen dose and progestin component; (5) spironolactone may be added to estroprogestins in women with moderate or severe hyperandrogenic adult acne, not responding to usual treatments; (6) estroprogestins may be used in nonhyperandrogenic patients with adult acne as second-line therapy.

16.
Expert Rev Clin Pharmacol ; 15(2): 121-137, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35306927

RESUMO

INTRODUCTION: Estrogens used in women's healthcare have been associated with increased risks of venous thromboembolism (VTE) and breast cancer. Estetrol (E4), an estrogen produced by the human fetal liver, has recently been approved for the first time as a new estrogenic component of a novel combined oral contraceptive (E4/drospirenone [DRSP]) for over a decade. In phase 3 studies, E4/DRSP showed good contraceptive efficacy, a predictable bleeding pattern, and a favorable safety and tolerability profile. AREAS COVERED: This narrative review discusses E4's pharmacological characteristics, mode of action, and the results of preclinical and clinical studies for contraception, as well as for menopause and oncology. EXPERT OPINION: Extensive studies have elucidated the properties of E4 that underlie its favorable safety profile. While classical estrogens (such as estradiol) exert their actions via both activation of nuclear and membrane estrogen receptor α (ERα), E4 presents a specific profile of ERα activation: E4 binds and activates nuclear ERα but does not induce the activation of membrane ERα signaling pathways in specific tissues. E4 has a small effect on normal breast tissue proliferation and minimally affects hepatic parameters. This distinct profile of ERα activation, uncoupling nuclear and membrane activation, is unique.


Assuntos
Estetrol , Anticoncepção , Anticoncepcionais Orais Combinados , Estetrol/efeitos adversos , Estrogênios/efeitos adversos , Feminino , Humanos , Menopausa
17.
J Assist Reprod Genet ; 28(11): 1067-72, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21989495

RESUMO

PURPOSE: To evaluate the effect of adjunctive letrazole or clomiphene in IVF stimulation protocols. METHODS: A retrospective analysis of high dose GnRH antagonist IVF cycles (450-600 IU of gonadotropins) that have met poor responder criteria. Selected consecutive cycles in same patients differed solely in presence or absence of adjunctive clomiphene or letrazole. RESULTS: Supplementation with clomiphene citrate in poor responders showed significant improvements (p < 0.05) in estradiol levels (1506 vs. 1044 pg/ml), number of dominant follicles (5.6 vs. 3.9), oocytes retrieved (5.2 vs. 3.4) and number of transferred embryos (1.7 vs. 1.1). It significantly improved biochemical pregnancy rates (18.1% vs. 5.9%) while reducing cycle cancellations (11.7% vs. 32.6%). Letrozole supplementation showed similar effects. CONCLUSION: Both Clomiphene and Letrazole performed similarly and showed significant effects. However, despite increasing oocyte yield and embryo transfer rates, the overall clinical and live birth rate in this population remained low and showed no measurable increase.


Assuntos
Clomifeno/administração & dosagem , Transferência Embrionária/métodos , Antagonistas de Estrogênios/administração & dosagem , Fertilização in vitro , Gonadotropinas/administração & dosagem , Nitrilas/administração & dosagem , Oócitos/crescimento & desenvolvimento , Indução da Ovulação/métodos , Triazóis/administração & dosagem , Adulto , Coeficiente de Natalidade , Estradiol/sangue , Feminino , Hormônio Foliculoestimulante/sangue , Antagonistas de Hormônios/farmacologia , Humanos , Letrozol , Oócitos/efeitos dos fármacos , Folículo Ovariano/efeitos dos fármacos , Gravidez , Taxa de Gravidez , Estudos Retrospectivos
18.
Am J Obstet Gynecol ; 203(3): 201.e1-5, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20435290

RESUMO

In women, the definition of polycystic ovary syndrome (PCOS) has become broad and includes several possible phenotypes. Because several features of PCOS may be in evolution in adolescents, we suggest that only firm criteria should be used to make a diagnosis of PCOS during adolescence. Hyperandrogenism, oligomenorrhea, and ovarian morphology change during adolescence and are discussed individually. Adolescents with incomplete criteria for a firm diagnosis of PCOS should be followed up carefully and may be diagnosed at a later time.


Assuntos
Síndrome do Ovário Policístico/diagnóstico , Adolescente , Amenorreia/diagnóstico , Amenorreia/etiologia , Anovulação/diagnóstico , Anovulação/etiologia , Feminino , Hirsutismo/etiologia , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/etiologia , Menarca , Oligomenorreia/diagnóstico , Oligomenorreia/etiologia , Ovário/diagnóstico por imagem , Puberdade , Ultrassonografia
19.
Int J Gynaecol Obstet ; 151(3): 383-391, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32931592

RESUMO

OBJECTIVE: To describe the prevalence of metabolic disturbances in a large cohort of women with polycystic ovary syndrome (PCOS) in southeastern Brazil and to compare the findings with other cohorts of Brazilian women with PCOS. METHODS: A retrospective study analyzing clinical and laboratory data of 462 women with PCOS treated at an outpatient clinic in a tertiary hospital in southeastern Brazil. Prevalence of insulin resistance, glucose intolerance, type 2 diabetes, dyslipidemia, central obesity, hypertension, and metabolic syndrome was compared to that of other cohorts of age and body mass index-matched Brazilian women with PCOS. RESULTS: Women with PCOS had a median age of 25.0 (21.0-29.0) years and BMI of 28.7 (23.9-34.0) kg/m2 . Prevalence of insulin resistance, glucose intolerance, and type 2 diabetes varied from 39.6% to 55.0%, 7.2% to 28.1%, and 2.0% to 4.1%, respectively. Prevalence of central obesity, dyslipidemia due to decreased high-density lipoprotein cholesterol, hypertriglyceridemia, and metabolic syndrome ranged from 57.8% to 66.4%, 54.1% to 70.4%, 22.9% to 35.1%, and 27.4% to 38.3%, respectively, which did not differ among regions in Brazil. CONCLUSION: Prevalence of metabolic disturbances was high among Brazilian women with PCOS. This study suggests that, from a public health perspective, authorities in Brazil should be aware of and encourage screening for metabolic dysfunction in women with PCOS in all regions of the country.


Assuntos
Síndrome Metabólica/epidemiologia , Síndrome Metabólica/genética , Fenótipo , Síndrome do Ovário Policístico/epidemiologia , Síndrome do Ovário Policístico/metabolismo , Adulto , Brasil/epidemiologia , Estudos de Coortes , Diabetes Mellitus Tipo 2/epidemiologia , Dislipidemias/epidemiologia , Feminino , Intolerância à Glucose/epidemiologia , Humanos , Hipertrigliceridemia/epidemiologia , Resistência à Insulina , Obesidade/epidemiologia , Prevalência , Estudos Retrospectivos , Adulto Jovem
20.
Menopause ; 27(8): 848-857, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32379217

RESUMO

OBJECTIVE: The aim of this study was to select the minimum effective dose of estetrol (E4) for the treatment of vasomotor symptoms in postmenopausal women. METHODS: This was a multicenter, randomized, double-blind, placebo-controlled study. Postmenopausal women (n = 257, of whom 32 were hysterectomized) aged 40 to 65 years, with ≥7 moderate to severe hot flushes (HFs) per day, or 50 or more moderate to severe HFs weekly, received 2.5, 5, 10, or 15 mg E4, or placebo once-daily for a period of 12 weeks. Efficacy was assessed by recording the frequency and severity of HFs. Overall safety was assessed by recording adverse events, measuring endometrial thickness, and monitoring bleeding patterns. Treatment groups were compared using analysis of covariance. RESULTS: The frequency of moderate to severe HFs decreased with all E4 doses. The difference in the percentage change of weekly HF frequency was significant for 15 mg E4 versus placebo at both W4 (-66% vs -49%, P = 0.032) and W12 (-82% vs -65%, P = 0.022). The decrease in severity of HFs was significantly more pronounced for 15 mg E4 than for placebo at both W4 (-0.59 vs -0.33, P = 0.049) and W12 (-1.04 vs -0.66, P = 0.049); the other doses failed to achieve statistical significance. In nonhysterectomized women, endometrial thickness increased during treatment and normalized following progestin treatment at study completion. No endometrial hyperplasia was observed. CONCLUSIONS: Estetrol 15 mg is considered to be the minimum effective daily oral dose for treatment of vasomotor symptoms. Its current seemingly favorable safety profile is further to be confirmed in phase 3 clinical development. : Video Summary:http://links.lww.com/MENO/A591.


Video Summary:http://links.lww.com/MENO/A591.


Assuntos
Hiperplasia Endometrial , Estetrol , Adulto , Idoso , Método Duplo-Cego , Estrogênios , Feminino , Fogachos/tratamento farmacológico , Humanos , Pessoa de Meia-Idade , Pós-Menopausa , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA