Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 47
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Maturitas ; 169: 2-9, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36566517

RESUMEN

INTRODUCTION: There is increasing evidence that vitamin D has widespread tissue effects. In addition to osteoporosis, vitamin D deficiency has been associated with cardiovascular disease, diabetes, cancer, infections and neurodegenerative disease. However, the effect of vitamin D supplementation on non-skeletal outcomes requires clarification, especially in postmenopausal women. AIM: This position statement provides an evidence-based overview of the role of vitamin D in the health of postmenopausal women based on observational and interventional studies. MATERIALS AND METHODS: Literature review and consensus of expert opinion. RESULTS AND CONCLUSIONS: Vitamin D status is determined by measuring serum 25-hydroxyvitamin D levels. Concentrations <20 ng/ml (<50 nmol/l) and <10 ng/ml (<25 nmol/l) are considered to constitute vitamin D deficiency and severe deficiency, respectively. Observational data suggest an association between vitamin D deficiency and adverse health outcomes in postmenopausal women, although they cannot establish causality. The evidence from randomized controlled trials concerning vitamin D supplementation is not robust, since many studies did not consider whether people were deficient at baseline. Moreover, high heterogeneity exists in terms of the population studied, vitamin D dosage, calcium co-administration and duration of intervention. Concerning skeletal health, vitamin D deficiency is associated with low bone mass and an increased risk of fractures. Vitamin D supplementation at maintenance doses of 800-2000 IU/day (20-50 µg/day), after repletion of vitamin D status with higher weekly or daily doses, may be of benefit only when co-administered with calcium (1000-1200 mg/day), especially in the elderly populations and those with severe vitamin D deficiency. Concerning cardiovascular disease, vitamin D deficiency is associated with an increased prevalence of cardiovascular risk factors, mainly metabolic syndrome, type 2 diabetes mellitus and dyslipidemia. Vitamin D deficiency, especially its severe form, is associated with an increased risk of cardiovascular events (coronary heart disease, stroke, mortality), independently of traditional risk factors. Vitamin D supplementation may have a modestly beneficial effect on lipid profile and glucose homeostasis, especially in obese individuals or those ≥60 years old and at doses of ≥2000 IU/day (≥50 µg/day). However, it has no effect on the incidence of cardiovascular events. Concerning cancer, vitamin D deficiency is associated with increased incidence of and mortality from several types of cancer, such as colorectal, lung and breast cancer. However, the data on other types of gynecological cancer are inconsistent. Vitamin D supplementation has no effect on cancer incidence, although a modest reduction in cancer-related mortality has been observed. Concerning infections, vitamin D deficiency has been associated with acute respiratory tract infections, including coronavirus disease 2019 (COVID-19). Vitamin D supplementation may decrease the risk of acute respiratory tract infections and the severity of COVID-19 (not the risk of infection). Concerning menopausal symptomatology, vitamin D deficiency may have a negative impact on some aspects, such as sleep disturbances, depression, sexual function and joint pains. However, vitamin D supplementation has no effect on these, except for vulvovaginal atrophy, at relatively high doses, i.e., 40,000-60,000 IU/week (1000-1500 IU/week) orally or 1000 IU/day (25 µg/day) as a vaginal suppository.


Asunto(s)
Suplementos Dietéticos , Menopausia , Vitamina D , Anciano , Femenino , Humanos , Calcio , Calcio de la Dieta , Enfermedades Cardiovasculares/complicaciones , COVID-19 , Diabetes Mellitus Tipo 2/complicaciones , Neoplasias/complicaciones , Enfermedades Neurodegenerativas , Deficiencia de Vitamina D/complicaciones , Deficiencia de Vitamina D/tratamiento farmacológico , Deficiencia de Vitamina D/epidemiología
2.
Maturitas ; 163: 1-14, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35569270

RESUMEN

This care pathway from the European Menopause and Andropause Society (EMAS) provides an updated pathway for monitoring and guidance of women at midlife, focusing on those approaching the end of the reproductive life-cycle, going through the menopausal transition and beyond. The care pathway is written by professionals involved in women's health and provides a stepwise individualized approach, stratified according to needs, symptoms and reproductive stage. Furthermore, the pathway provides details on screening for chronic diseases related to menopause and ageing. Treatment options for climacteric symptoms range from menopausal hormone therapy to non-hormonal alternatives and lifestyle modifications. Therapy should be tailored to personal needs and wishes. The pathway aims to offer a holistic, balanced approach for monitoring middle-aged women, aiming to control health problems effectively and ensure healthy ageing.


Asunto(s)
Andropausia , Vías Clínicas , Terapia de Reemplazo de Estrógeno , Femenino , Terapia de Reemplazo de Hormonas , Sofocos , Humanos , Menopausia , Persona de Mediana Edad
3.
Maturitas ; 158: 70-77, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35115178

RESUMEN

INTRODUCTION: The menopause, or the cessation of menstruation, is a stage of the life cycle which will occur in all women. Managing perimenopausal and postmenopausal health is a key issue for all areas of healthcare, not just gynecology. AIM: To provide recommendations for the curriculum of education programs for healthcare professionals worldwide, so that all can receive high quality training on menopause. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: Training programs for healthcare professionals worldwide should include menopause and postmenopausal health in their curriculum. It should include assessment, diagnosis and evidence-based management strategies.


Asunto(s)
Curriculum , Personal de Salud , Menopausia , Consenso , Europa (Continente) , Femenino , Personal de Salud/educación , Humanos , Sociedades Médicas
4.
Eur J Obstet Gynecol Reprod Biol ; 260: 150-153, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33773261

RESUMEN

The clinical management of intrauterine fetal demise (IUFD) in women with a previous cesarean delivery presents a dilemma for the obstetrician. With the current reluctance of obstetricians to perform vaginal birth after cesarean (VBAC) and the paucity of data to counsel women regarding maternal risks, management options are limited by physician's clinical experience and biases. In the setting of fetal demise, maternal safety becomes the primary concern. Medicolegal pressures may prevent physicians from attempting a trial of labor in this situation. In this review we will a focus on frequency of birth with IUFD after cesarean section (CS), we discuss the options (VBAC vs CS), different complications, methods for induction of vaginal birth as well as risk factors of vaginal birth and cesarean delivery.


Asunto(s)
Trabajo de Parto , Parto Vaginal Después de Cesárea , Cesárea/efectos adversos , Femenino , Muerte Fetal/etiología , Humanos , Parto , Embarazo , Esfuerzo de Parto , Parto Vaginal Después de Cesárea/efectos adversos
5.
Maturitas ; 144: 45-52, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33358208

RESUMEN

The physical demands of daily life in developed countries have decreased remarkably during the last two centuries. General leisure time has increased and the age at retirement has decreased. General health has improved and life expectancy has increased. Most people can expect to live 20-30 years after retirement. By 2050, one in four people in Europe and North America will be aged 65 or over. Furthermore, women live longer than men. Generally, the physical demands on older women will be low. Thus, their physical fitness will decline, which in turn will affect a variety of organ systems and functions, and so impact on mental health, quality of life and independent living. This opinion paper explores exercise strategies for healthy ageing.


Asunto(s)
Ejercicio Físico , Envejecimiento Saludable , Aptitud Física , Anciano , Europa (Continente) , Femenino , Humanos , Actividades Recreativas , Esperanza de Vida , Masculino , América del Norte , Calidad de Vida , Jubilación
6.
Maturitas ; 148: 55-61, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33896654

RESUMEN

INTRODUCTION: Vulvovaginal atrophy (VVA) is a chronic condition caused by estrogen deficiency. It affects around 50% of postmenopausal women, reducing their general and sexual quality of life as well as the quality of their personal relationships. AIM: The aim of this clinical guide is to set out an individualized approach to the management of VVA with topical estrogens and non-hormonal preparations. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: An individualized approach is required for the management of VVA. Topical low-dose estrogens are effective and also alleviate urinary incontinence and prevent recurrent urinary tract infections. Women should not be denied long-term use of topical estrogens as long as they feel that this treatment is of benefit to them, because the safety data are reassuring. Non-hormonal preparations (lubricants and moisturizers) should be the first-line treatment for VVA in women taking adjuvant endocrine therapies for cancers considered to be hormone-dependent. They can be used over the long term.


Asunto(s)
Atrofia/tratamiento farmacológico , Estrógenos/administración & dosificación , Posmenopausia , Guías de Práctica Clínica como Asunto/normas , Enfermedades Vaginales/tratamiento farmacológico , Enfermedades de la Vulva/tratamiento farmacológico , Administración Intravaginal , Testimonio de Experto , Femenino , Humanos , Calidad de Vida
7.
Maturitas ; 143: 223-230, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33008675

RESUMEN

INTRODUCTION: The prevalence of urinary incontinence and of other lower urinary tract symptoms increases after the menopause and affects between 38 % and 55 % of women aged over 60 years. While urinary incontinence has a profound impact on quality of life, few affected women seek care. AIM: The aim of this clinical guide is to provide an evidence-based approach to the management of urinary incontinence in postmenopausal women. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: Healthcare professionals should consider urinary incontinence a clinical priority and develop appropriate diagnostic skills. They should be able to identify and manage any relevant modifiable factors that could alleviate the condition. A wide range of treatment options is available. First-line management includes lifestyle and behavioral modification, pelvic floor exercises and bladder training. Estrogens and other pharmacological interventions are helpful in the treatment of urgency incontinence that does not respond to conservative measures. Third-line therapies (e.g. sacral neuromodulation, intravesical onabotulinum toxin-A injections and posterior tibial nerve stimulation) are useful in selected patients with refractory urge incontinence. Surgery should be considered in postmenopausal women with stress incontinence. Midurethral slings, including retropubic and transobturator approaches, are safe and effective and should be offered.


Asunto(s)
Posmenopausia , Incontinencia Urinaria/terapia , Femenino , Humanos , Incontinencia Urinaria/diagnóstico
8.
Maturitas ; 151: 55-62, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34274202

RESUMEN

INTRODUCTION: Worldwide, there are 657 million women aged 45-59 and around half contribute to the labor force during their menopausal years. There is a diversity of experience of menopause in the workplace. It is shaped not only by menopausal symptoms and context but also by the workplace environment. It affects quality of life, engagement, performance, motivation and relations with employers. AIM: To provide recommendations for employers, managers, healthcare professionals and women to make the workplace environment more menopause supportive, and to improve women's wellbeing and their ability to remain in work. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: Workplace health and wellbeing frameworks and policies should incorporate menopausal health as part of the wider context of gender and age equality and reproductive and post-reproductive health. Workplaces should create an open, inclusive and supportive culture regarding menopause, involving, if available, occupational health professionals and human resource managers working together. Women should not be discriminated against, marginalized or dismissed because of menopausal symptoms. Health and allied health professionals should recognize that, for some women, menopausal symptoms can adversely affect the ability to work, which can lead to reduction of working hours, underemployment or unemployment, and consequently financial insecurity in later life.


Asunto(s)
Envejecimiento , Andropausia , Guías como Asunto , Menopausia , Calidad de Vida/psicología , Envejecimiento/fisiología , Envejecimiento/psicología , Consenso , Empleo , Femenino , Humanos , Masculino , Sociedades Médicas , Lugar de Trabajo
10.
Maturitas ; 135: 82-88, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32209279

RESUMEN

INTRODUCTION: Dyslipidemias are common and increase the risk of cardiovascular disease. The menopause transition is associated with an atherogenic lipid profile, with an increase in the concentrations of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), apolipoprotein B (apoB) and potentially lipoprotein (a) [Lp(a)], and a decrease in the concentration of high-density lipoprotein cholesterol (HDL-C). AIM: The aim of this clinical guide is to provide an evidence-based approach to management of menopausal symptoms and dyslipidemia in postmenopausal women. The guide evaluates the effects on the lipid profile both of menopausal hormone therapy and of non-estrogen-based treatments for menopausal symptoms. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: Initial management depends on whether the dyslipidemia is primary or secondary. An assessment of the 10-year risk of fatal cardiovascular disease, based on the Systematic Coronary Risk Estimation (SCORE) system, should be used to set the optimal LDL-C target. Dietary changes and pharmacological management of dyslipidemias should be tailored to the type of dyslipidemia, with statins constituting the mainstay of treatment. With regard to menopausal hormone therapy, systemic estrogens induce a dose-dependent reduction in TC, LDL-C and Lp(a), as well as an increase in HDL-C concentrations; these effects are more prominent with oral administration. Transdermal rather than oral estrogens should be used in women with hypertriglyceridemia. Micronized progesterone or dydrogesterone are the preferred progestogens due to their neutral effect on the lipid profile. Tibolone may decrease TC, LDL-C, TG and Lp(a), but also HDL-C concentrations. Low-dose vaginal estrogen and ospemifene exert a favorable effect on the lipid profile, but data are scant regarding dehydroepiandrosterone (DHEA). Non-estrogen-based therapies, such as fluoxetine and citalopram, exert a more favorable effect on the lipid profile than do sertraline, paroxetine and venlafaxine. Non-oral testosterone, used for the treatment of hypoactive sexual desire disorder/dysfunction, has little or no effect on the lipid profile.


Asunto(s)
Dislipidemias/terapia , Menopausia , Dislipidemias/sangre , Dislipidemias/diagnóstico , Femenino , Humanos , Lípidos/sangre , Tamizaje Masivo
11.
Maturitas ; 131: 91-101, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31740049

RESUMEN

INTRODUCTION: Globally, the total number of people with depression exceeds 300 million, and the incidence rate is 70 % greater in women. The perimenopause is considered to be a time of increased risk for the development of depressive symptoms and major depressive episodes. AIM: The aim of this position statement is to provide a comprehensive model of care for the management of depressive symptoms in perimenopausal and early menopausal women, including diagnosis, treatment and follow-up. The model integrates the care provided by all those involved in the management of mild or moderate depression in midlife women. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: Awareness of depressive symptoms, early detection, standardized diagnostic procedures, personalized treatment and a suitable follow-up schedule need to be integrated into healthcare systems worldwide. Recommended treatment comprises antidepressants, psychosocial therapies and lifestyle changes. Alternative and complementary therapies, although widely used, may help with depression, but a stronger evidence base is needed. Although not approved for this indication, menopausal hormone therapy may improve depressive symptoms in peri- but not in postmenopausal women, especially in those with vasomotor symptoms.


Asunto(s)
Depresión/terapia , Trastorno Depresivo Mayor/terapia , Perimenopausia/psicología , Posmenopausia/psicología , Adulto , Anciano , Antidepresivos/uso terapéutico , Terapias Complementarias , Depresión/epidemiología , Trastorno Depresivo Mayor/epidemiología , Europa (Continente) , Femenino , Hormonas/uso terapéutico , Humanos , Estilo de Vida , Menopausia/psicología , Persona de Mediana Edad , Guías de Práctica Clínica como Asunto , Sociedades Médicas , Resultado del Tratamiento
12.
Maturitas ; 139: 90-97, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32682573

RESUMEN

INTRODUCTION: Globally, 985 million women are aged 50 and over, leading to increasing concerns about chronic conditions such as cardiovascular disease, osteoporosis, dementia, and cognitive decline, which can adversely affect quality of life and independent living. AIM: To evaluate the evidence from observational studies and randomized trials on the effects of the Mediterranean diet on short- and long-term menopausal health: estrogen deficiency symptoms, cardiovascular disease, osteoporosis, cognitive and mental health, breast cancer, and all-cause mortality. MATERIALS AND METHODS: Literature review and consensus of expert opinion. SUMMARY RECOMMENDATIONS: The Mediterranean diet is a non-restrictive dietary pattern common in the olive-growing areas of the Mediterranean basin. It may improve vasomotor symptoms, cardiovascular risk factors such as blood pressure, cholesterol and blood glucose levels, as well as mood and symptoms of depression. Long-term adherence may: improve cardiovascular risk and events, and death; improve bone mineral density; prevent cognitive decline; and reduce the risk of breast cancer and all-cause mortality.


Asunto(s)
Dieta Mediterránea , Menopausia , Neoplasias de la Mama/prevención & control , Enfermedades Cardiovasculares/prevención & control , Consenso , Demencia/prevención & control , Femenino , Humanos , Salud Mental , Estudios Observacionales como Asunto , Osteoporosis , Ensayos Clínicos Controlados Aleatorios como Asunto
13.
Lancet ; 372(9651): 1746-55, 2008 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-18814906

RESUMEN

BACKGROUND: In mouse models of diabetes, prophylactic administration of insulin reduced incidence of the disease. We investigated whether administration of nasal insulin decreased the incidence of type 1 diabetes, in children with HLA genotypes and autoantibodies increasing the risk of the disease. METHODS: At three university hospitals in Turku, Oulu, and Tampere (Finland), we analysed cord blood samples of 116 720 consecutively born infants, and 3430 of their siblings, for the HLA-DQB1 susceptibility alleles for type 1 diabetes. 17 397 infants and 1613 siblings had increased genetic risk, of whom 11 225 and 1574, respectively, consented to screening of diabetes-associated autoantibodies at every 3-12 months. In a double-blind trial, we randomly assigned 224 infants and 40 siblings positive for two or more autoantibodies, in consecutive samples, to receive short-acting human insulin (1 unit/kg; n=115 and n=22) or placebo (n=109 and n=18) once a day intranasally. We used a restricted randomisation, stratified by site, with permuted blocks of size two. Primary endpoint was diagnosis of diabetes. Analysis was by intention to treat. The study was terminated early because insulin had no beneficial effect. This study is registered with ClinicalTrials.gov, number NCT00223613. FINDINGS: Median duration of the intervention was 1.8 years (range 0-9.7). Diabetes was diagnosed in 49 index children randomised to receive insulin, and in 47 randomised to placebo (hazard ratio [HR] 1.14; 95% CI 0.73-1.77). 42 and 38 of these children, respectively, continued treatment until diagnosis, with yearly rates of diabetes onset of 16.8% (95% CI 11.7-21.9) and 15.3% (10.5-20.2). Seven siblings were diagnosed with diabetes in the insulin group, versus six in the placebo group (HR 1.93; 0.56-6.77). In all randomised children, diabetes was diagnosed in 56 in the insulin group, and 53 in the placebo group (HR 0.98; 0.67-1.43, p=0.91). INTERPRETATION: In children with HLA-conferred susceptibility to diabetes, administration of nasal insulin, started soon after detection of autoantibodies, could not be shown to prevent or delay type 1 diabetes.


Asunto(s)
Autoanticuerpos/sangre , Diabetes Mellitus Tipo 1/prevención & control , Hipoglucemiantes/uso terapéutico , Insulina/uso terapéutico , Administración Intranasal , Autoanticuerpos/clasificación , Niño , Preescolar , Diabetes Mellitus Tipo 1/genética , Diabetes Mellitus Tipo 1/inmunología , Método Doble Ciego , Femenino , Finlandia , Pruebas Genéticas/métodos , Genotipo , Antígenos HLA-DQ/genética , Antígenos HLA-DQ/aislamiento & purificación , Cadenas beta de HLA-DQ , Humanos , Hipoglucemiantes/administración & dosificación , Lactante , Recién Nacido , Insulina/administración & dosificación , Masculino , Factores de Riesgo
15.
J Hypertens ; 26(12): 2445-9, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19008724

RESUMEN

OBJECTIVE: Postmenopausal phase expresses many unfavourable physiological changes that lead to increased risk for cardiovascular disease. We compared the effect of two sympatholytic antihypertensive drug treatments, the centrally acting imidazoline receptor-1 agonist moxonidine and peripherally acting beta-blocking agent atenolol on sensitive inflammatory markers in overweight postmenopausal women with diastolic hypertension. METHODS: This was a multicentre, multinational double-blinded, prospective study comparing moxonidine (0.3 mg twice daily) with atenolol (50 mg once daily) in 87 hypertensive postmenopausal overweight women who were not taking hormone therapy. Sensitive C-reactive protein, IL-6, TNFalpha, TNFalpha-RII and adiponectin were determined in the beginning of the study and after 8 weeks of medical treatment. RESULTS: TNFalpha increased in atenolol and decreased in moxonidine group (P = 0.0004 between the groups). Adiponectin concentration decreased dramatically in atenonol but did not change in moxonidine treatment group (P < 0.0001 between the groups). In logistic regression analysis only treatment group showed an independent effect on changes in adiponectin and TNFalpha concentrations. CONCLUSION: We believe that centrally acting sympatholytic agent moxonidine is beneficial in the treatment of postmenopausal women with hypertension by reducing inflammatory cytokine TNFalpha without changing protective adiponectin level.


Asunto(s)
Antihipertensivos/uso terapéutico , Hipertensión/tratamiento farmacológico , Hipertensión/fisiopatología , Inflamación/prevención & control , Posmenopausia/fisiología , Sistema Nervioso Simpático/fisiopatología , Adiponectina/metabolismo , Antihipertensivos/farmacología , Atenolol/farmacología , Atenolol/uso terapéutico , Proteína C-Reactiva/metabolismo , Método Doble Ciego , Femenino , Finlandia , Humanos , Hipertensión/complicaciones , Imidazoles/farmacología , Imidazoles/uso terapéutico , Inflamación/sangre , Inflamación/etiología , Resistencia a la Insulina/fisiología , Interleucina-6/sangre , Lituania , Persona de Mediana Edad , Sobrepeso/metabolismo , Sobrepeso/fisiopatología , Estudios Prospectivos , Receptores Tipo II del Factor de Necrosis Tumoral/sangre , Suecia , Sistema Nervioso Simpático/efectos de los fármacos , Factor de Necrosis Tumoral alfa/sangre
16.
Climacteric ; 16(3): 399-400, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23814881
17.
BMC Cancer ; 6: 246, 2006 Oct 18.
Artículo en Inglés | MEDLINE | ID: mdl-17044944

RESUMEN

BACKGROUND: Human breast tissue undergoes phases of proliferation, differentiation and regression regulated by changes of the levels of circulating sex hormones during the menstrual cycle or aging. Ovarian hormones also likely play a key role in the etiology and biology of breast cancer. Reports concerning the proliferative effects of steroid hormones on the normal epithelium of human breast have been conflicting. Some studies have shown that steroid hormones may predispose breast epithelial cells to malignant changes by stimulating their proliferation, which is known to be regulated tightly by stromal cells. The aim of this study was to investigate the effects of 17beta-estradiol and medroxyprogesterone acetate on proliferation, apoptosis, expression of differentiation markers and steroid hormone receptors in breast epithelium using an in vitro model of freshly isolated human breast tissue, in which a proper interaction of breast epithelium and stroma has been maintained. METHODS: Human breast tissues were obtained from women undergoing surgery for breast tumours. Peritumoral tissues were excised and explants were cultured for 3 weeks in medium supplemented with E2 or MPA or with E2+MPA. Endpoints included histopathological, histomorphometric and immunohistochemical assessment of the breast explants. RESULTS: Culture of breast explants for 14 or 21 days with steroid hormones increased proliferative activity and the thickness of acinar and ductal epithelium. E2-treatment led to hyperplastic epithelial morphology, MPA to hypersecretory single-layered epithelium and E2+MPA to multilayered but organised epithelium. The proliferative response to E2 in comparison to control (p < 0.001) was more pronounced than to MPA (p < 0.05) or E2+MPA (p < 0.05) at 7 and 14 days for Ki-67 and PCNA. E2 treatment also decreased the proportion of apoptotic cells after 7 (p < 0.01) and 14 (p < 0.01) days. In addition, the relative number of ERalpha, ERbeta and PR positive epithelial cells was decreased by all hormonal treatments. CONCLUSION: Organ culture system provides a model for studying the direct effects of steroid hormones and their analogues on postmenopausal human breast tissue. Addition of E2 or MPA or E2+MPA to breast explants caused characteristic changes in morphology, stimulated epithelial proliferation, lowered apoptosis ratio and decreased the relative number of epithelial cells expressing ERalpha, ERbeta and PR.


Asunto(s)
Apoptosis/efectos de los fármacos , Neoplasias de la Mama/patología , Mama/efectos de los fármacos , Estradiol/farmacología , Acetato de Medroxiprogesterona/farmacología , Mama/metabolismo , Mama/ultraestructura , Neoplasias de la Mama/metabolismo , Diferenciación Celular/efectos de los fármacos , División Celular/efectos de los fármacos , Fragmentación del ADN/efectos de los fármacos , Sinergismo Farmacológico , Células Epiteliales/efectos de los fármacos , Células Epiteliales/metabolismo , Células Epiteliales/ultraestructura , Receptor alfa de Estrógeno/análisis , Receptor beta de Estrógeno/análisis , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Proteínas Inmediatas-Precoces/análisis , Antígeno Ki-67/análisis , Persona de Mediana Edad , Proteínas de Neoplasias/análisis , Técnicas de Cultivo de Órganos , Antígeno Nuclear de Célula en Proliferación/análisis , Receptores de Progesterona/análisis , Células del Estroma/efectos de los fármacos , Células del Estroma/metabolismo , Células del Estroma/ultraestructura
18.
Metabolism ; 55(2): 224-31, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16423630

RESUMEN

Lysinuric protein intolerance (LPI) is an autosomal recessive transport disorder of the dibasic amino acids. The defect leads to deficiency of lysine, arginine, and ornithine and, secondarily, to a functional disorder of the urea cycle. Transient postprandial hyperammonemia and subsequent persistent protein aversion, linked with several other biochemical and clinical characteristics of the disease, suggest an increased risk for maternal and fetal complications during pregnancy and delivery. Our unique material on the outcomes of 18 pregnancies of 9 Finnish mothers with LPI and the follow-up of their 19 children shows that maternal LPI is truly associated with increased risk of anemia, toxemia, and intrauterine growth retardation during pregnancy and bleeding complications during delivery. Successful pregnancies and deliveries can still be achieved with careful follow-up of blood pressure and laboratory values. The children of the mothers with LPI generally develop normally. Special care of maternal protein nutrition and control of ammonemia, anemia, and toxemia during pregnancy are essential. We propose centralization of deliveries to obstetric units with capability to deal with bleeding complications and rare inborn errors of metabolism.


Asunto(s)
Trastornos Innatos del Transporte de Aminoácidos/genética , Trastornos Innatos del Transporte de Aminoácidos/metabolismo , Aminoácidos Diaminos/metabolismo , Complicaciones del Embarazo/metabolismo , Adulto , Trastornos Innatos del Transporte de Aminoácidos/patología , Aminoácidos Diaminos/sangre , Aminoácidos Diaminos/orina , Presión Sanguínea/fisiología , Femenino , Hemoglobinas/metabolismo , Humanos , Recién Nacido , Ácido Orótico/orina , Embarazo , Complicaciones del Embarazo/genética , Complicaciones del Embarazo/patología , Toxemia/metabolismo , Urea/metabolismo
19.
Zhong Xi Yi Jie He Xue Bao ; 4(6): 579-84, 2006 Nov.
Artículo en Zh | MEDLINE | ID: mdl-17090371

RESUMEN

OBJECTIVE: To observe the therapeutic effects of Jinqi Jiangtang Tablet (JQJTT), a commonly prescribed recipe for type 2 diabetes in traditional Chinese medicine, on obese women with polycystic ovary syndrome (PCOS). METHODS: Twenty-four obese women with PCOS were prescribed JQJTT for 3 months and the changes of carbohydrate metabolism and biochemical indicators, including menstrual cycle, body mass index (BMI), the level of blood sex hormone, area under curve (AUC) of glucose and insulin during oral glucose tolerance test (OGTT), and testosterone responses during human chorionic gonadotrophin stimulation ovary test were observed. RESULTS: After treatment, there were significantly reductions in BMI (P<0.05), serum glucose level at 30 min during OGTT (P<0.05) and testosterone levels at eighteen hours during human chorionic gonadotrophin stimulation ovary test (P<0.05). In addition, nine patients had improved cycles among sixteen completed patients, and one patient with clomifene resistance got pregnant with response to clomifene treatment. CONCLUSION: The beneficial effects of JQJTT may result from improvement of carbohydrate metabolism and reduction in androgen biosynthesis in women with PCOS.


Asunto(s)
Medicamentos Herbarios Chinos/uso terapéutico , Fitoterapia , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Testosterona/sangre , Adolescente , Adulto , Índice de Masa Corporal , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , Síndrome del Ovario Poliquístico/sangre , Comprimidos
20.
Methods Mol Biol ; 1366: 327-336, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26585146

RESUMEN

Explant tissue culture provides a model for studying the direct effects of steroid hormones, their analogs, and novel hormonally active compounds on normal freshly isolated human breast tissues (HBTs). For this purpose, pre- and postmenopausal HBTs can be maintained in this culture system. The results demonstrate that the morphological integrity of HBT explants can be maintained in tissue culture up to 2 weeks and expression of differentiation markers, steroid hormone receptors, proliferation and apoptosis ratios can be evaluated as a response to hormonal stimulation. This chapter describes an ex vivo culture model that we have applied to study the effects of various hormonally active substances, including 17ß-estradiol and selective estrogen receptor modulators (SERMs), on normal human breast tissues.


Asunto(s)
Mama/efectos de los fármacos , Receptor alfa de Estrógeno/efectos de los fármacos , Clorhidrato de Raloxifeno/farmacología , Moduladores Selectivos de los Receptores de Estrógeno/farmacología , Tamoxifeno/análogos & derivados , Tamoxifeno/farmacología , Apoptosis/efectos de los fármacos , Biomarcadores/metabolismo , Mama/metabolismo , Mama/patología , Mama/cirugía , Proliferación Celular/efectos de los fármacos , Estradiol/farmacología , Receptor alfa de Estrógeno/metabolismo , Femenino , Humanos , Inmunohistoquímica , Adhesión en Parafina , Factores de Tiempo , Técnicas de Cultivo de Tejidos , Fijación del Tejido
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA