Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 48
Filtrar
1.
Horm Res Paediatr ; 97(2): 134-139, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37552972

RESUMEN

INTRODUCTION: The prevalence of polycystic ovarian syndrome (PCOS) in adolescent girls is between 1 and 4.3%. It remains controversial whether women with a history of idiopathic central precocious puberty (ICPP) are at increased risk for PCOS. Our objective was to assess the prevalence of PCOS in adolescents with a history of ICPP compared with healthy adolescents and the prevalence of PCOS among ICPP girls who have received or not gonadotropin-releasing hormone analogue (GnRHa) treatment. METHODS: We assessed post-menarcheal girls with a history of ICPP. Girls were evaluated at gynecological age ≥2.5 years. Data collected were age at menarche, menstrual cycle characteristics, BMI, clinical hyperandrogenism (HA), total and free testosterone levels. PCOS diagnosis was defined by criteria for adolescents. Subjects were also analyzed regarding whether or not they had received GnRHa treatment. RESULTS: Ninety-four subjects were assessed, and 63 had been treated with GnRHa. Menstrual disorders were found in 29%, clinical HA in 36%, and biochemical HA in 23%. Twelve percent met the diagnostic criteria for PCOS. There was no difference in BMI or in the incidence of menstrual dysfunction or hyperandrogenemia between treated and untreated patients. A higher proportion of clinical HA was found in untreated patients when compared to treated girls. The relative risk (RR) of developing PCOS in ICPP girls was 2.5 compared to a population of healthy adolescents. This RR was not higher in patients who received treatment with GnRHa than in those who did not. CONCLUSION: Adolescent girls with a history of ICPP have an increased risk of PCOS. This risk seems not to be related to GnRHa treatment.


Asunto(s)
Hiperandrogenismo , Síndrome del Ovario Poliquístico , Pubertad Precoz , Adolescente , Femenino , Humanos , Preescolar , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/epidemiología , Pubertad Precoz/tratamiento farmacológico , Prevalencia , Hiperandrogenismo/complicaciones , Hiperandrogenismo/epidemiología , Menarquia
2.
Femina ; 51(12): 682-686, 20231230.
Artículo en Portugués | LILACS | ID: biblio-1532471

RESUMEN

A hiperplasia adrenal congênita (HAC) pode cursar com redução da fertilidade na mulher. Entretanto, nos casos em que ocorre gestação, os recém-nascidos das por- tadoras de hiperplasia adrenal congênita exibem risco de hiperandrogenismo, com todas as suas consequências. A presente revisão atualiza o tema, considerando também as necessidades da assistência a essas pacientes. A busca identificou 294 artigos na base de dados MEDLINE/PubMed de 1961 a março/2023, e os resultados mostraram que as portadoras de hiperplasia adrenal congênita exibem significativa redução da fertilidade. Nos casos de interesse de gestação, as portadoras de hiper- plasia adrenal congênita devem fazer um planejamento reprodutivo, envolvendo a fase antenatal, o acompanhamento pré-natal especializado, o parto e o aleitamento.


Congenital adrenal hyperplasia may lead to reduced male and female fertility. Mo- reover, when the pregnancy occurs, the newborns of patients with congenital adrenal hyperplasia are at risk of hyperandrogenism with all its consequences. This review updates the theme and emphasizes assistance needs. The search identified 294 ar- ticles in the MEDLINE/PubMed database from 1961 to March/2023, and the results showed that patients with congenital adrenal hyperplasia truly exhibit a significant reduction in fertility. In cases of interest in pregnancy, patients with congenital adre- nal hyperplasia should carry out reproductive planning, involving the antenatal pha- se, specialized prenatal care, till delivery and breastfeeding.


Asunto(s)
Humanos , Masculino , Femenino , Hiperplasia Suprarrenal Congénita/diagnóstico , Salud Reproductiva , Neoplasias Testiculares/complicaciones , Hiperandrogenismo/complicaciones , Infertilidad/complicaciones
3.
Clinics (Sao Paulo) ; 78: 100310, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38008036

RESUMEN

PCOS is an endocrine disorder characterized by chronic anovulation, hyperandrogenism, and polycystic ovaries. Its etiology is uncertain. It is debated whether BPA would be a component of the environmental factor in the etiology of PCOS. Contamination by BPA can occur from food packaging (exposure during the diet) and through skin absorption and/or inhalation. It can be transferred to the fetus via the placenta or to the infant via breast milk, and it can be found in follicular fluid, fetal serum, and amniotic fluid. The phenolic structure of BPA allows it to interact with Estrogen Receptors (ERs) through genomic signaling, in which BPA binds to nuclear ERα or Erß, or through nongenomic signaling by binding to membrane ERs, prompting a rapid and intense response. With daily and constant exposure, BPA's tendency to bioaccumulate and its ability to activate nongenomic signaling pathways can alter women's metabolic and reproductive function, leading to hyperandrogenism, insulin resistance, obesity, atherogenic dyslipidemia, chronic inflammatory state, and anovulation and favoring PCOS. The harmful changes caused by BPA can be passed on to future generations without the need for additional exposure because of epigenetic modifications. Not only high BPA levels can produce harmful effects, but at low levels, BPA may be harmful when exposure occurs during the most vulnerable periods, such as the fetal and neonatal periods, as well as during the prepubertal age causing an early accumulation of BPA in the body. Learning how BPA participates in the pathogenesis of PCOS poses a challenge and further studies should be conducted.


Asunto(s)
Anovulación , Hiperandrogenismo , Síndrome del Ovario Poliquístico , Embarazo , Recién Nacido , Femenino , Humanos , Síndrome del Ovario Poliquístico/inducido químicamente , Hiperandrogenismo/complicaciones , Anovulación/complicaciones , Fenoles/toxicidad
4.
Endocrinol Metab Clin North Am ; 52(3): 533-545, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37495343

RESUMEN

Polycystic ovary syndrome (PCOS) affects around 10% of women in the reproductive age group and is characterized by ovulatory dysfunction, hyperandrogenism, and/or polycystic ovarian morphology. PCOS is highly associated with metabolic-associated fatty liver disease (MAFLD) as both diseases share common risk factors. At the time of diagnosis of PCOS, screening for MAFLD is necessary because most patients with MAFLD are asymptomatic. The importance of early detection of MAFLD in patients with PCOS is that a timely intervention in patients with steatosis or steatohepatitis can reduce the probability of liver disease progression.


Asunto(s)
Hiperandrogenismo , Resistencia a la Insulina , Enfermedad del Hígado Graso no Alcohólico , Síndrome del Ovario Poliquístico , Humanos , Femenino , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/diagnóstico , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/diagnóstico , Factores de Riesgo , Hiperandrogenismo/complicaciones
5.
WIREs Mech Dis ; 14(5): e1558, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35475329

RESUMEN

Polycystic ovary syndrome (PCOS) is one of the major endocrine disorders affecting women of reproductive age. Its etiology remains unclear. It is suggested that environmental factors, and particularly the intrauterine environment, play key roles in PCOS development. Besides the role of androgens in PCOS pathogenesis, exposure to endocrine disruptors, as is Bisphenol A, could also contribute to its development. Although PCOS is considered one of the leading causes of ovarian infertility, many PCOS patients can get pregnant. Some of them by natural conception and others by assisted reproductive technique treatments. As hyperandrogenism (one of PCOS main features) affects ovarian and uterine functions, PCOS women, despite reaching pregnancy, could present high-risk pregnancies, including implantation failure, an increased risk of gestational diabetes, preeclampsia, and preterm birth. Moreover, hyperandrogenism may also be maintained in these women during pregnancy. Therefore, as an altered uterine milieu, including hormonal imbalance, could affect the developing organisms, monitoring these patients throughout pregnancy and their offspring development is highly relevant. The present review focuses on the impact of androgenism and PCOS on fertility issues and pregnancy-related outcomes and offspring development. The evidence suggests that the increased risk of pregnancy complications and adverse offspring outcomes of PCOS women would be due to the factors involved in the syndrome pathogenesis and the related co-morbidities. A better understanding of the involved mechanisms is still needed and could contribute to a better management of these women and their offspring. This article is categorized under: Reproductive System Diseases > Molecular and Cellular Physiology Reproductive System Diseases > Environmental Factors.


Asunto(s)
Hiperandrogenismo , Infertilidad , Síndrome del Ovario Poliquístico , Nacimiento Prematuro , Femenino , Humanos , Hiperandrogenismo/complicaciones , Recién Nacido , Infertilidad/complicaciones , Síndrome del Ovario Poliquístico/complicaciones , Embarazo , Resultado del Embarazo/epidemiología , Nacimiento Prematuro/etiología
6.
Femina ; 50(5): 301-307, 2022.
Artículo en Portugués | LILACS | ID: biblio-1380709

RESUMEN

Objetivo: A síndrome dos ovários policísticos (SOP) é uma alteração endócrina comum em mulheres que estão em fase reprodutiva. Essa patologia pode estar relacionada a fatores de risco para o desenvolvimento de complicações cardiometabólicas, o que a torna um tema relevante para discussão, visto sua grande prevalência na população feminina. Trata-se de uma revisão integrativa da literatura com o objetivo de identificar os fatores de risco associados à SOP e verificar se há maior risco cardiovascular para as mulheres com essa síndrome. Fonte de dados: Foi realizada uma busca nas bases de dados Biblioteca Virtual de Saúde, National Library of Medicine, Scientific Eletronic Library Online e EbscoHost, com os seguintes descritores: "Síndrome do ovário policístico e riscos cardiovasculares"; "Mulheres, policístico e riscos cardiovasculares"; "Ovário policístico e riscos" e "Mulheres, ovários policísticos"; "Polycystic ovary and risks"; "Polycystic ovary syndrome and cardiovascular risk" e "Polycystic ovaries and cardiovascular". Seleção de estudos: Foram encontrados 21 artigos, dos quais 15 atenderam aos critérios de inclusão previamente estabelecidos. Foram incluídos os artigos originais e as publicações entre o período de 2014 e 2021 que relacionavam diretamente a síndrome aos riscos cardiovasculares, síndromes metabólicas e alterações lipídicas. Coleta de dados: A estratégia de seleção dos artigos foi realizada mediante busca nas bases de dados selecionadas, leitura dos títulos de todos os artigos encontrados e exclusão daqueles que não abordavam o assunto, leitura crítica dos resumos dos artigos e leitura na íntegra dos artigos selecionados nas etapas anteriores. Síntese de dados: Todos os autores afirmam que a síndrome é um distúrbio ovulatório e metabólico, uma vez que a resistência à insulina e a consequente hiperinsulinemia compensatória podem ser exacerbadas pela coexistência da obesidade, presente em muitas mulheres com SOP. Além disso, foram identificados os fatores de risco tradicionais para o desenvolvimento de doenças cardiovasculares, e 93,33% dos artigos analisados demonstraram que, entre as mulheres com a síndrome, alguns fatores de risco para o desenvolvimento de tais doenças parecem apresentar uma chance maior de estarem presentes. Conclusão: Ao final dessa revisão, foi possível responder à pergunta clínica proposta, pois todos os artigos pesquisados concluíram e trouxeram estudos comprovando que mulheres com a SOP possuem maiores chances de desenvolver algum problema cardiovascular precoce, devido a fatores como o hiperandrogenismo e o aumento da gordura visceral e da resistência insulínica.(AU)


Objective: Polycystic ovary syndrome is an endocrine disorder, common in women who are in the reproductive phase. This pathology may be related to risk factors for the development of cardiometabolic complications, which makes it a relevant topic for discussion, given its high prevalence in the female population. This is an integrative literature review with the aim of identifying the risk factors associated with polycystic ovary syndrome and verifying whether there is a higher cardiovascular risk for women with this syndrome. Data source: A search was performed in the Virtual Health Library databases; National Library of Medicine; Scientific Electronic Library Online and EbscoHost, with the following descriptors: "Polycystic ovary syndrome and cardiovascular risks"; "Women, polycystic and cardiovascular risks"; "Polycystic ovaries and risks" and "Women, polycystic ovaries"; "Polycystic ovary and risks"; "Polycystic ovary syndrome and cardiovascular risk" and "Polycystic ovaries and cardiovascular". Study selection: Twenty-one articles were found, of which 15 met the previously established inclusion criteria. Original articles and publications between the period 2014 and 2021 that directly related the syndrome to cardiovascular risks, metabolic syndromes and lipid disorders were included. Data collect: The article selection strategy was performed by searching the selected databases; reading the titles of all articles found and excluding those that did not address the subject; critical reading of the abstracts of the articles and full reading of the articles selected in the previous steps. Data synthesis: All authors state that the Syndrome is an ovulatory and metabolic disorder, since insulin resistance and consequent compensatory hyperinsulinemia can be exacerbated by the coexistence of obesity, present in many women with polycystic ovary syndrome. In addition, traditional risk factors for the development of cardiovascular diseases were identified, with 93.33% of the articles analyzed showing that, among women with the syndrome, some risk factors for the development of such diseases seem to have a chance greater than being present. Conclusion: At the end of this review, it was possible to answer the proposed clinical question, as all the researched articles concluded and brought studies proving that women with polycystic ovary syndrome are more likely to develop an early cardiovascular problem, due to factors such as hyperandrogenism, the increase in visceral fat and insulin resistance.(AU)


Asunto(s)
Humanos , Femenino , Síndrome del Ovario Poliquístico/complicaciones , Factores de Riesgo de Enfermedad Cardiaca , Factores de Riesgo Cardiometabólico , Bases de Datos Bibliográficas , Hiperandrogenismo/complicaciones , Síndrome Metabólico/patología
7.
Front Endocrinol (Lausanne) ; 12: 604215, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34054718

RESUMEN

Background: Polycystic Ovary Syndrome (PCOS) often present metabolic disorders and hyperandrogenism (HA), facts that may influence the telomere length (TL). Aims: To compare the absolute TL (aTL) between women with PCOS and control women, and their association with the presence of obesity and HA parameters. Materials and methods: The PCOS group included 170 unrelated women outpatients and the control group, 64 unrelated donor women. Anthropometric, biochemical-clinical parameters and androgen profile were determined. The PCOS patients were divided accordingly to the presence of obesity and androgenic condition. The aTL was determined from peripheral blood leukocytes by Real Time quantitative PCR. Results: Women with PCOS exhibited a significantly longer aTL than controls after age adjustment (p=0.001). A stepwise multivariate linear regression in PCOS women, showed that WC (waist circumference) contributed negatively (b=-0.17) while testosterone levels contributed positively (b=7.24) to aTL. The non-Obese PCOS (noOB-PCOS) presented the longest aTL when compared to controls (p=0.001). Meanwhile, the aTL was significantly higher in the hyperandrogenic PCOS phenotype (HA-PCOS) than in the controls (p=0.001) and non hyperandrogenic PCOS phenotype (NHA-PCOS) (p=0.04). Interestingly, when considering obesity and HA parameters in PCOS, HA exerts the major effect over the aTL as non-obese HA exhibited the lengthiest aTL (23.9 ± 13.13 Kbp). Conversely, the obese NHA patients showed the shortest aTL (16.5 ± 10.59 Kbp). Conclusions: Whilst a shorter aTL could be related to the presence of obesity, a longer aTL would be associated with HA phenotype. These findings suggest a balance between the effect produced by the different metabolic and hormonal components, in PCOS women.


Asunto(s)
Hiperandrogenismo/genética , Obesidad/genética , Síndrome del Ovario Poliquístico/genética , Telómero/metabolismo , Adulto , Argentina/epidemiología , Índice de Masa Corporal , Estudios de Casos y Controles , Femenino , Humanos , Hiperandrogenismo/complicaciones , Hiperandrogenismo/epidemiología , Obesidad/complicaciones , Obesidad/epidemiología , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/epidemiología , Estudios Retrospectivos , Telómero/química , Homeostasis del Telómero/fisiología , Testosterona/sangre
8.
Hum Reprod Update ; 27(4): 771-796, 2021 06 22.
Artículo en Inglés | MEDLINE | ID: mdl-33764457

RESUMEN

BACKGROUND: Metabolic and endocrine alterations in women with polycystic ovary syndrome (PCOS) affect adipose tissue mass and distribution. PCOS is characterised by hyperandrogenism, obesity and adipocyte dysfunction. Hyperandrogenism in PCOS drives dysfunctional adipocyte secretion of potentially harmful adipocytokines. Glucocorticoids and sex-steroids modulate adipocyte development and function. For their part, adipocyte products interact with adrenal and ovarian steroidogenic cells. Currently, the relationship between adipocyte and steroidogenic cells is not clear, and for these reasons, it is important to elucidate the interrelationship between these cells in women with and without PCOS. OBJECTIVE AND RATIONALE: This comprehensive review aims to assess current knowledge regarding the interrelationship between adipocytes and adrenal and ovarian steroidogenic cells in animal models and humans with or without PCOS. SEARCH METHODS: We searched for articles published in English and Portuguese in PubMed. Keywords were as follows: polycystic ovary syndrome, steroidogenesis, adrenal glands, theca cells, granulosa cells, adipocytes, adipocytokines, obesity, enzyme activation, and cytochrome P450 enzymes. We expanded the search into the references from the retrieved articles. OUTCOMES: Glucocorticoids and sex-steroids modulate adipocyte differentiation and function. Dysfunctional adipocyte products play important roles in the metabolic and endocrine pathways in animals and women with PCOS. Most adipokines participate in the regulation of the hypothalamic-pituitary-adrenal and ovarian axes. In animal models of PCOS, hyperinsulinemia and poor fertility are common; various adipokines modulate ovarian steroidogenesis, depending on the species. Women with PCOS secrete unbalanced levels of adipocyte products, characterised by higher levels of leptin and lower levels of adiponectin. Leptin expression positively correlates with body mass index, waist/hip ratio and levels of total cholesterol, triglyceride, luteinising hormone, oestradiol and androgens. Leptin inhibits the production of oestradiol and, in granulosa cells, may modulate 17-hydroxylase and aromatase enzyme activities. Adiponectin levels negatively correlate with fat mass, body mass index, waist-hip ratio, glucose, insulin and triglycerides, and decrease androgen production by altering expression of luteinising hormone receptor, steroidogenic acute regulatory protein, cholesterol-side-chain cleavage enzyme and 17-hydroxylase. Resistin expression positively correlates with body mass index and testosterone, and promotes the expression of 17-hydroxylase enzyme in theca cells. The potential benefits of adipokines in the treatment of women with PCOS require more investigation. WIDER IMPLICATIONS: The current data regarding the relationship between adipocyte products and steroidogenic cells are conflicting in animals and humans. Polycystic ovary syndrome is an excellent model to investigate the interrelationship among adipocyte and steroidogenic cells. Women with PCOS manifest some pathological conditions associated with hyperandrogenism and adipocyte products. In animals, cross-talk between cells may vary according to species, and the current review suggests opportunities to test new medications to prevent or even reverse several harmful sequelae of PCOS in humans. Further studies are required to investigate the possible therapeutic application of adipokines in women with obese and non-obese PCOS. Meanwhile, when appropriate, metformin use alone, or associated with flutamide, may be considered for therapeutic purposes.


Asunto(s)
Hiperandrogenismo , Síndrome del Ovario Poliquístico , Adipocitos/metabolismo , Andrógenos , Animales , Femenino , Humanos , Hiperandrogenismo/complicaciones , Síndrome del Ovario Poliquístico/complicaciones
10.
Rev Assoc Med Bras (1992) ; 65(3): 375-383, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30994836

RESUMEN

OBJECTIVE: This study aims to evaluate the sleep of subjects with polycystic ovary syndrome (PCOS), with and without hyperandrogenism, in comparison with a healthy control group and examine the effects of hyperandrogenism and obesity on sleep parameters. METHODS: A total of 44 volunteers were recruited to participate in the study. Clinical, biochemical and polysomnographic parameters were used to diagnose PCOS and hyperandrogenism. The evaluation of sleep quality was made using validated questionnaires and polysomnography test. The frequency of obstructive sleep apnea was also compared between the groups. RESULTS: The study revealed that women with PCOS presented poorer subjective sleep quality, increased incidence of snoring and a higher risk of obstructive sleep apnea, based on the Berlin questionnaire. Also, after adjusting for body mass index, PCOS subjects had rapid eye movement (REM) time lower than those in the control group. PCOS women versus those without hyperandrogenism did not differ on any sleep measurement. Women with obstructive sleep apnea were only diagnosed in the PCOS group. CONCLUSIONS: Our results indicate that PCOS impairs subjective sleep quality, as well as objective sleep quality, due to a reduction in REM sleep stage time in women diagnosed with the syndrome. Obesity affected sleep-related parameters but hyperandrogenism had no effect. Only the PCOS group had obstructive sleep apnea diagnosis.


Asunto(s)
Hiperandrogenismo/complicaciones , Obesidad/complicaciones , Síndrome del Ovario Poliquístico/complicaciones , Apnea Obstructiva del Sueño/etiología , Trastornos del Sueño-Vigilia/etiología , Adolescente , Adulto , Índice de Masa Corporal , Estudios de Casos y Controles , Femenino , Humanos , Hiperandrogenismo/fisiopatología , Persona de Mediana Edad , Obesidad/fisiopatología , Síndrome del Ovario Poliquístico/fisiopatología , Polisomnografía , Trastorno de la Conducta del Sueño REM/fisiopatología , Valores de Referencia , Medición de Riesgo , Factores de Riesgo , Apnea Obstructiva del Sueño/fisiopatología , Trastornos del Sueño-Vigilia/fisiopatología , Estadísticas no Paramétricas , Encuestas y Cuestionarios , Testosterona/sangre , Adulto Joven
11.
Int J Dermatol ; 58(11): 1277-1282, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30883707

RESUMEN

BACKGROUND: Acne vulgaris is a chronic, multifactorial inflammatory skin disease involving the pilosebaceous unit. The prevalence of acne is high during adolescence and is known to persist into adulthood; however, the characteristics of adult acne have not been well established. In the adult population, acne has been associated with psychosocial repercussions impacting the quality of life of those who suffer it, especially in female patients. METHODS: This study assessed the demographic and clinical characteristics of 1,384 patients between the ages of 25 and 60 years from 21 countries in Latin America and the Iberian Peninsula, with the purpose of identifying parameters for the severity of the disease, its links to demographic, biological, social, and environmental factors, and potential triggers. RESULTS: Gender differences in severity and location of the lesions were identified. In a univariate analysis, the male gender, use of cosmetics, age of onset of adolescence, and signs of hyperandrogenism were associated with acne severity. CONCLUSIONS: The characteristics of adult acne may vary from those of adolescent acne, although the disease presentations are generally similar. Further research is needed to establish similarities and differences in manifestations of adult acne versus adolescent acne.


Asunto(s)
Acné Vulgar/epidemiología , Cosméticos/efectos adversos , Hiperandrogenismo/epidemiología , Calidad de Vida , Acné Vulgar/diagnóstico , Acné Vulgar/etiología , Acné Vulgar/psicología , Adulto , Factores de Edad , Edad de Inicio , Femenino , Humanos , Hiperandrogenismo/complicaciones , Hiperandrogenismo/diagnóstico , América Latina/epidemiología , Masculino , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Factores Sexuales , Piel
12.
Mol Cell Endocrinol ; 491: 110416, 2019 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-30880153

RESUMEN

This study aimed to evaluate the role of prenatal hyperandrogenization in liver functions and the extent of metformin as treatment. Pregnant rats were hyperandrogenized with subcutaneous testosterone (1mg/rat) between 16 and 19 of pregnancy. Prenatally hyperandrogenized (PH) female offspring displayed, at the adult life, two phenotypes; a PH irregular ovulatory phenotype (PHiov) and a PH anovulatory (PHanov) phenotype. From day 70 to the moment of sacrifice (90 days of age), 50% of the animals of each group received a daily oral dose of 50 mg/kg of metformin. We found that both PH phenotypes displayed a hepatic disruptions of insulin and glucose pathway and that metformin treatment reversed some of these alterations in a specific-phenotype manner. Our findings show, for the first time, that androgen excess in utero promotes hepatic dysfunctions and that metformin treatment is able to specifically reverse those hepatic alterations and sheds light on the possible mechanisms of metformin action.


Asunto(s)
Hiperandrogenismo/complicaciones , Hipoglucemiantes/farmacología , Hepatopatías/tratamiento farmacológico , Hígado/fisiología , Metformina/farmacología , Efectos Tardíos de la Exposición Prenatal/tratamiento farmacológico , Animales , Femenino , Resistencia a la Insulina , Lípidos/sangre , Hígado/efectos de los fármacos , Hepatopatías/etiología , Hepatopatías/patología , Masculino , Embarazo , Efectos Tardíos de la Exposición Prenatal/etiología , Efectos Tardíos de la Exposición Prenatal/patología , Ratas , Ratas Sprague-Dawley , Transducción de Señal
13.
Rev. fac. cienc. méd. (Impr.) ; 15(2): 17-23, jul.-dic. 2018. tab
Artículo en Español | LILACS | ID: biblio-988611

RESUMEN

El síndrome de ovario poliquísticoes unaendocrinopatía frecuente en la mujer en edad fértil, causado por exceso de andrógenos y es causa de infertilidad anovulatoria. Actualmente uno de los criterios utilizados para el diagnóstico, son los de Rotterdam y para esto se necesita de la clínica (hiperandrogenismo y disfunción ovulatoria), exámenes de laboratorio (hiperandrogenismo) y/o ultrasonido característico de dicho síndrome. Objetivo:determinar el síndrome de ovario poliquístico confirmado por métodos laboratoriales e imágenes y tratamiento indicado en consulta externa del Hospital Escuela Universitario. Material y métodos: estudio retrospectivo, transversal, no aleatorio. Se revisaron 56 expedientes de pacientes con el diagnóstico de síndrome de ovario poliquístico valorados mediante criterios de Rotterdam, 31(55.4%) tenian diagnóstico ultrasonográfico. Se utilizó un instrumento de recolección de datos tipo cuestionario registrandose lo siguiente: edad, sintomatología, exámenes laboratoriales, diagnóstico con descripción ultrasonográficas y tratamiento farmacológico. Resultados: con el diagnóstico de síndrome ovario poliquístico, 31(55.4%) teníandiagnósticos1 Médico especialista en ginecología y obstetricia, Hospital Escuela Universitario2Estudiante de sexto año, Facultad de Ciencias Médicas, Universidad Nacional Autónoma de Honduras.Autor de correspondencia: Silder Moncada Correo electrónico: silderjavier78@gmail.comRecibido: 19/09/2017Aceptado: 07/02/2019ultrasonográficos, en 26(83.9%) pacientes no se encontró consignado en el expediente síntomas de hiperandrogenismo, se consignó acantosis nigricans en 2(6.5%), alopecia y acné 3(9.7%), respectivamente como signo hiperandrogénico. Los fármacos utilizados para tratar síndrome de ovario poliquístico fueron metformina y anticonceptivos orales. Conclusión: el diagnóstico y tratamiento de síndrome de ovario poliquístico no sigue protocolos estandarizados, ya que de los 31 expedientes con resultado por ultrasonido, solo 5(16.1%) reunían los criterios para el diagnóstico de dicha patología...(AU)


Asunto(s)
Humanos , Femenino , Adolescente , Adulto , Síndrome del Ovario Poliquístico/diagnóstico , Síndrome del Ovario Poliquístico/diagnóstico por imagen , Hiperandrogenismo/complicaciones , Anticonceptivos Orales/farmacología , Trastornos de la Menstruación/complicaciones
14.
Endocr Regul ; 52(4): 208-221, 2018 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-31517612

RESUMEN

Polycystic Ovary Syndrome (PCOS) is characterized by hyperandrogenism, amenorrhea, and polycystic ovaries. This endocrinopathy is associated with many metabolic disorders such as dyslipidemia and insulin resistance, with increased risk of type 2 diabetes mellitus, metabolic syndrome, and cardiovascular complications. Inflammation is likely to play an important role in the promoting these metabolic imbalances, while prothrombotic and pro-oxidative mechanisms further contribute to the cardiovascular risk of these patients. The etiology of PCOS is still not fully understood, but there is evidence of genetic and environmental components. This review aims to discuss some molecular pathways associated with PCOS that could contribute to the better understanding about this syndrome. Recent evidence suggests that intrauterine exposure of female mice to an excess of anti-Müllerian hormone may induce PCOS features in their post-natal life. High cytokine levels and cytokine gene polymorphisms also appear to be associated with the pathophysiology of PCOS. Furthermore, high levels of microparticles may contribute to the altered hemostasis and enhanced inflammation in PCOS. All these mechanisms may be relevant to clarify some aspects of PCOS pathogenesis and inspire new strategies to prevent the syndrome as well as treat its symptoms and mitigate the risk of long-term complications.


Asunto(s)
Síndrome del Ovario Poliquístico/etiología , Animales , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/metabolismo , Femenino , Humanos , Hiperandrogenismo/complicaciones , Hiperandrogenismo/genética , Hiperandrogenismo/metabolismo , Resistencia a la Insulina/genética , Síndrome Metabólico/complicaciones , Síndrome Metabólico/genética , Síndrome Metabólico/metabolismo , Ratones , Obesidad/complicaciones , Obesidad/genética , Obesidad/metabolismo , Síndrome del Ovario Poliquístico/genética , Síndrome del Ovario Poliquístico/metabolismo , Transducción de Señal/genética
15.
Gynecol Endocrinol ; 33(3): 212-217, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-27898283

RESUMEN

Higher androgen levels are observed in non-pregnant women with diabetes. Whether this hormonal profile is found during pregnancy is unknown. The aim of this study was to determine the sexual steroids levels in pregnant women with pregestational type 2 (T2D) and gestational diabetes (GD) compared to healthy control (C) pregnant women during the second half of pregnancy. A prospective study of 69 pregnant women with T2D (n = 21), GD (n = 24) and control (C, n = 24) was followed up during the second half of gestation. Clinical assessments and blood samples were collected at 26.7 (25-27.8); 34 (32-34.9) and 37.5 (37-40) weeks of gestation. Androgens, sex hormone-binding globulin (SHBG), estrogens, estradiol/testosterone (E/T) ratio, insulin, glucose, HOMA-IR, were measured. Testosterone, insulin and homeostatic model assessment of insulin resistance (HOMA-IR) levels were higher in T2D compared with C at each sampling point during pregnancy, even after adjusting for BMI and age. Estrogens levels and estradiol/testosterone ratio were lower in T2D and GD compared with C. Hyperandrogenemia, and higher insulin resistance is observed in T2D, but not in GD during pregnancy. Decreased estrogen and E/T ratio found in T2D and GD suggests a diminished aromatase activity during gestation. T2D and GD are associated with specific changes in sexual steroids and insulin resistance levels during pregnancy.


Asunto(s)
Diabetes Mellitus Tipo 2/complicaciones , Diabetes Gestacional/sangre , Hiperandrogenismo/complicaciones , Hiperinsulinismo/complicaciones , Resistencia a la Insulina , Embarazo en Diabéticas/sangre , Adulto , Androstenodiona/sangre , Chile , Sulfato de Deshidroepiandrosterona/sangre , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Gestacional/metabolismo , Diabetes Gestacional/fisiopatología , Regulación hacia Abajo , Estradiol/sangre , Estriol/sangre , Estrona/sangre , Femenino , Humanos , Hiperandrogenismo/etiología , Hiperinsulinismo/etiología , Estudios Longitudinales , Embarazo , Segundo Trimestre del Embarazo , Tercer Trimestre del Embarazo , Embarazo en Diabéticas/metabolismo , Embarazo en Diabéticas/fisiopatología , Estudios Prospectivos , Centros de Atención Terciaria
16.
Rev. bras. oftalmol ; 75(5): 380-384, sept.-out. 2016. tab
Artículo en Inglés | LILACS | ID: lil-798073

RESUMEN

ABSTRACT Purpose: Polycystic ovary syndrome (PCOS) is an endocrine disease characterized by chronic anovulation and hyperandrogenism. Hormonal changes can affect tear function. This study evaluates tear function and impact of hyperandrogenism on it in PCOS patients. Methods: Fifty patients with PCOS and thirty control volunteers were examined for tear break-up time, Schirmer-I and tear osmolarity. Also, serum levels of total testosterone, FSH, LH and AMH were determined in venous blood samples in the early follicular phase. PCOS patients were divided into two groups by plasma total testosterone level: Group A with normal (≤0.513 ng/ml;n=27), Group B with higher hormone level (>0.513 ng/ml;n=23). Healthy control group indicated as Group C (n=30). Results: LH, total testosterone levels were higher in the PCOS group than in the control group (p=0.012; p=0.025). Mean values of tear break-up time and Schirmer-I were different between groups and especially Group A and C were near to each other differing from B (p>0.05). Tear osmolarity results were higher in Group B, compared to A and C (p=0.049; p=0.033). No significant difference detected in tear osmolarity value means of Group A and C (p=0.107). AMH levels were higher in Group B, compared to A and C (p=0.002; p=0.001). AMH levels in Group A were higher than that of C (p=0.002). Positive correlation between levels of total testosterone and AMH was detected in all PCOS patients (n=50;Pearson's r=0.579; p<0.001). Conclusion: Tear function can be affected in PCOS patients with hyperandrogenism. Tear osmolarity is the most sensitive and objective assessment method for ocular surface changes in PCOS.


RESUMO Objetivo: A síndrome do ovário policístico (SOP) é uma doença endócrina caracterizada por anovulação crônica e hiperandrogenismo. As alterações hormonais podem afetar a função cardíaca. Este estudo avalia a função lacrimal e o impacto do hiperandrogenismo sobre ela em pacientes com SOP. Métodos: Cinquenta pacientes com SOP e trinta voluntárias de controle foram examinadas para tempo de ruptura lacrimal, Schirmer-I e osmolaridade lacrimal. Além disso, os níveis séricos de testosterona total, FSH, LH e HAM foram determinados em amostras de sangue venoso na fase folicular precoce.As pacientes com SOP foram divididas em dois grupos por nível de testosterona plasmática total: Grupo A com nível normal (≤0.513 ng/ml; n = 27), Grupo B com nível superior de hormônio (> 0,513 ng/ml; n = 23). Grupo de controle saudável indicado como Grupo C (n = 30). Resultados: Os níveis de LH e testosterona total foram maiores no grupo com SOP do que no grupo controle (p = 0,012; p = 0,025). Os valores médios de tempo de ruptura lacrimal e Schirmer-I foram diferentes entre os grupos, e especialmente os Grupos A e C estavam próximos um do outro, diferente do B (p > 0,05). Os resultados de osmolaridade lacrimal foram maiores no Grupo B, em comparação com A e C (p = 0,049; p = 0,033). Não houve diferença significativa detectada em valor médio de osmolaridade lacrimal nos Grupos A e C (p = 0,107). Os níveis de HAM foram maiores no Grupo B, em comparação com A e C (p = 0,002; p = 0,001). Os níveis de AMH no Grupo A foram superiores aos de C (p = 0,002). Uma correlação positiva entre os níveis de testosterona total e AMH foi detectada em todas as pacientes com SOP (n = 50; Pearson's r = 0,579; p < 0,001). Conclusão: a função lacrimal pode ser afetada em pacientes com SOP com hiperandrogenismo. A osmolaridade lacrimal é o método de avaliação mais sensível e objetivo para alterações da superfície ocular em SOP.


Asunto(s)
Humanos , Femenino , Adulto , Concentración Osmolar , Síndrome del Ovario Poliquístico/complicaciones , Lágrimas/fisiología , Hiperandrogenismo/complicaciones , Glándulas Tarsales/fisiología , Lágrimas/metabolismo , Testosterona/sangre , Hormona Luteinizante/sangre , Síndromes de Ojo Seco/diagnóstico , Síndromes de Ojo Seco/etiología , Hiperandrogenismo/etiología , Hormona Antimülleriana/sangre , Microscopía con Lámpara de Hendidura , Hormona Folículo Estimulante/sangre
17.
J Clin Endocrinol Metab ; 100(3): 942-50, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25514100

RESUMEN

CONTEXT: Adrenal hyperandrogenism affects approximately 25% of polycystic ovary syndrome (PCOS) patients but its relation to obesity is not totally understood. OBJECTIVE: This study aimed to assess dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) levels in relation to body mass index (BMI) in PCOS. DESIGN AND SETTING: This was a prospective observational study at an institutional practice at an obstetrics/gynecology hospital. PARTICIPANTS: The study included 136 PCOS patients, 20-35 years old, and 42 age-matched control women. The participants were classified with the BMI cutoff value of 27 kg/m(2) as follows: 1) high-BMI PCOS patients; 2) low-BMI PCOS patients; 3) high-BMI control women; and 4) low-BMI control women. The data were reanalyzed with the BMI cutoff value of 30 kg/m(2) to corroborate the findings in obese and nonobese patients. MAIN OUTCOME MEASURE(S): Blood samples were taken and LH, FSH, insulin, T, androstenedione (A4), DHEA, DHEAS, and glucose levels were determined. Homeostatic model assessment was calculated. Pelvic and abdominal ultrasound for ovarian morphology and adipose tissue, respectively, were performed. RESULTS: Obese PCOS patients presented significantly more insulin resistance than nonobese PCOS patients. The LH levels and LH/FSH ratio were significantly higher in low-BMI than in high-BMI PCOS patients. The A4 and DHEAS levels were significantly higher in nonobese than in obese PCOS patients. A significant correlation between LH and A4 in nonobese PCOS patients was observed. The frequency of hyperandrogenism by increased A4, and DHEA along with DHEAS was significantly higher in low-BMI PCOS patients compared with high-BMI PCOS patients. Some findings observed with the BMI cutoff value of 27 kg/m(2) changed with the cutoff value of 30 kg/m(2). CONCLUSIONS: Low BMI more so than high BMI is associated with increased LH, high A4, DHEA, and DHEAS levels in PCOS patients. The BMI cutoff value of 27 kg/m(2) classified better than 30 kg/m(2) for hormonal and metabolic characteristics.


Asunto(s)
Glándulas Suprarrenales/metabolismo , Andrógenos/metabolismo , Índice de Masa Corporal , Hiperandrogenismo/epidemiología , Síndrome del Ovario Poliquístico/epidemiología , Adulto , Glucemia/metabolismo , Estudios de Casos y Controles , Femenino , Gonadotropinas/sangre , Humanos , Hiperandrogenismo/complicaciones , Hiperandrogenismo/metabolismo , Insulina/sangre , Resistencia a la Insulina , Obesidad/complicaciones , Obesidad/epidemiología , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/metabolismo , Adulto Joven
18.
Arq Bras Endocrinol Metabol ; 58(2): 97-107, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24830586

RESUMEN

Hirsutism is defined as excessive terminal hair growth in androgen-dependent areas of the body in women, which grows in a typical male distribution pattern. Hirsutism is a common clinical problem in women, and the treatment depends on the cause. The condition is often associated with a loss of self-esteem. Hirsutism reflects the interaction between circulating androgen concentrations, local androgen concentrations, and the sensitivity of the hair follicle to androgens. Polycystic ovary syndrome and idiopathic hirsutism are the most common causes of the condition. A woman's history and, physical examination are particularly important in evaluating excess hair growth. The vast majority of women with hirsutism have the idiopathic variety, and the diagnosis is made by exclusion. Serum testosterone level>200 ng/dL is highly suggestive of adrenal or ovarian tumor. Treatment of hirsutism should be based on the degree of excess hair growth presented by the patient and in the pathophysiology of the disorder. Treatment includes lifestyle therapies, androgen suppression, peripheral androgen blockage, and cosmetic treatments. The current review discusses definition, pathogenesis, physiopathology, differential diagnosis, diagnostic strategies, and treatment.


Asunto(s)
Folículo Piloso/fisiología , Hirsutismo , Síndrome del Ovario Poliquístico/complicaciones , Andrógenos/sangre , Femenino , Hirsutismo/diagnóstico , Hirsutismo/etiología , Hirsutismo/terapia , Humanos , Hiperandrogenismo/complicaciones , Estilo de Vida , Ilustración Médica , Examen Físico/métodos , Factores Sexuales , Salud de la Mujer
19.
Rev. bras. ginecol. obstet ; Rev. bras. ginecol. obstet;35(12): 562-568, dez. 2013. tab
Artículo en Portugués | LILACS | ID: lil-699981

RESUMEN

OBJETIVO: Avaliar a contribuição do hiperandrogenismo para o desenvolvimento da síndrome metabólica (SM) em mulheres obesas com ou sem Síndrome dos Ovários Policísticos (SOP). MÉTODOS: Estudo transversal retrospectivo no qual foram incluídas 60 mulheres obesas com fenótipo clássico da SOP - Consenso de Rotterdam - e 70 obesas sem SOP. A SM foi diagnosticada pelos critérios do NCEP-ATP III. A obesidade foi definida pelo índice de massa corpórea e o hirsutismo, pelo Índice de Ferriman-Gallwey (IFG). As dosagens realizadas foram: testosterona total, sulfato de dehidroepiandrosterona (SDHEA), insulina e glicose, colesterol total, HDL e triglicerídios. A resistência insulínica (RI) foi avaliada pelo HOMA-IR e pelo índice de sensibilidade à insulina de Matsuda e De Fronzo. A analise estatística foi realizada com o teste t de Student, teste do χ² e análise de regressão logística multivariada (p<0,05). RESULTADOS: As obesas com SOP apresentaram significativamente maiores valores de IFG (15,4±6,1), circunferência da cintura (105,6±11,4 cm), testosterona (135,8±71,4 ng/dL), SDHEA (200,8±109,2 µg/dL), HOMA-IR (8,4±8,5) e menores valores de ISI (2,0±1,8) quando comparadas às obesas não SOP (3,2±2,1; 101,4±9,2 cm; 50,0±18,2 ng/dL; 155,0±92,7 µg/dL; 5,1±4,7; 3,3±2,7, respectivamente) (p<0,05). A frequência de SM foi significativamente maior nas obesas com SOP (75%) do que nas obesas não SOP (52,8%) (p=0,01). A análise multivariada não demonstrou contribuição das variávies IFG, testoterona total e SDHEA para o desenvolvimento da SM (p>0,05). CONCLUSÃO: Mulheres obesas com SOP apresentam maior frequência de SM quando comparadas às obesas não SOP. O hiperandrogenismo não mostrou influência nesse grupo de mulheres estudadas.


PURPOSE: To assess the contribution of hyperandrogenism to the development of metabolic syndrome (MetS) in obese women with polycystic ovary syndrome (PCOS). METHODS: Retrospective cross-sectional study conducted on 60 obese women with classic PCOS phenotype - Rotterdam Consensus - and 70 non-PCOS obese women. MetS was diagnosed by the NCEP-ATP III criteria and obesity was defined by body mass index. The Ferriman-Gallwey score (mFG) was used to evaluate hirsutism. The following measurements were performed: total testosterone, dehydroepiandrosterone sulfate (DHEA-S), glucose and insulin, total cholesterol, HDL, and triglycerides. Insulin resistance was measured using the HOMA-IR and insulin sensitivity index of Matsuda and De Fronzo (ISI). Statistical analysis was performed using the Student's t-test, χ² test and multivariate logistic regression analysis (p<0.05). RESULTS: Obese women with PCOS had significantly higher mFG (15.4±6.1), waist circunference (105.6±11.4 cm), DHEA-S (200.8±109.2 µg/dL), testosterone (135.8±71.4 ng/dL), and HOMA-IR (8.4±8.5) values and lower ISI values (2.0±1.8) than non-obese PCOS women (3.2±2.1; 101.4±9.2 cm; 155.0±92.7 µg/dL; 50.0±18.2 ng/dL; 5.1±4.7 and 3.3±2.7, respectively) (p<0.05). The frequency of MetS was higher in PCOS obese (75%) than non-PCOS obese (52.8%) women (p=0.015). Multivariate analysis did not reveal the contribution of the variables IFG, testosterone, and DHEAS to the development of MetS (p>0.05). CONCLUSION: Obese women with PCOS have a higher frequency of metabolic syndrome than non-PCOS obese women, and hyperandrogenism does not contribute to the development of metabolic syndrome in this group of women.


Asunto(s)
Adulto , Femenino , Humanos , Hiperandrogenismo/complicaciones , Síndrome Metabólico/etiología , Obesidad/complicaciones , Síndrome del Ovario Poliquístico/complicaciones , Estudios Transversales , Estudios Retrospectivos
20.
Horm Metab Res ; 45(4): 301-7, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23322511

RESUMEN

There is a strong correlation between the severity of genotypes and 17OH-progesterone levels in patients with the nonclassical form of 21-hydroxylase deficiency (NC-CAH); however, there are few studies regarding the correlation with clinical signs. The aim of the study was to evaluate whether genotypes correlate with the severity of the hyperandrogenic phenotype. A cohort of 114 NC-CAH patients were diagnosed by stimulated-17OHP ≥10 ng/ml. CYP21A2 genotypes were divided into 2 groups according to the severity of enzymatic impairment; mild and severe. Clinical data and hormonal profiles were compared between the 2 groups. Age at onset of manifestations did not differ between children or adults carrying both mild and severe genotypes. Frequencies of precocious pubarche and hirsutism, with or without menstrual abnormalities, were similar between the 2 groups. There were no differences in basal testosterone levels of adult symptomatic females carrying both genotypes, but there were differences between adult females with (92.9±49.5 ng/dl) and without hirsutism (43.8±38 ng/dl) (p=0.0002). Similar frequencies of both genotypes were observed in asymptomatic females and in those with clitoromegaly. Nonclassical genotypes do not predict the severity of phenotype. Asymptomatic and virilized females carrying the same genotype suggest that there is a modulatory effect of genes involved in the androgen pathway on the phenotype.


Asunto(s)
Hiperplasia Suprarrenal Congénita/sangre , Hiperplasia Suprarrenal Congénita/genética , Genotipo , Hiperandrogenismo/sangre , Hiperandrogenismo/genética , Esteroide 21-Hidroxilasa/sangre , Esteroide 21-Hidroxilasa/genética , Adolescente , Hiperplasia Suprarrenal Congénita/complicaciones , Adulto , Edad de Inicio , Andrógenos/sangre , Niño , Preescolar , Estudios de Cohortes , Femenino , Hirsutismo/sangre , Hirsutismo/complicaciones , Hirsutismo/genética , Humanos , Hiperandrogenismo/complicaciones , Testosterona/sangre
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA