Browsing by Subject "Puberty"

Now showing items 1-17 of 17

    • A rational approach to the diagnosis of polycystic ovarian syndrome during adolescence Uma abordagem racional ... 
      Merino, Paulina M.; Codner Dujovne, Ethel; Cassorla Goluboff, Fernando (2011)
      Polycystic ovarian syndrome (PCOS) is a lifelong disorder characterized by hyperandrogenism and ovulatory dysfunction, with a wide spectrum of clinical symptoms and signs. Three different sets of diagnostic criteria have ...
    • Adiponectin serum levels and their relationships to androgen concentrations and ovarian volume during puberty ... 
      Iñíguez Vila, Germán; Torrealba, Isabel M.; Ávila, Alejandra; Cassorla Goluboff, Fernando; Codner Dujovne, Ethel (2008)
      Aim: To study the adiponectin levels during puberty in girls with type 1 diabetes mellitus (DM1) and their relationship to body mass index (BMI), Tanner stage, ovarian volume (OV), and androgen levels. Methods: We studied ...
    • Age of onset of puberty in chilean boys according to testicular volume and tanner stage La pubertad en niños ... 
      Gaete, Ximena; García, Roberto; Riquelme, Joel; Codner Dujovne, Ethel (Sociedad Medica de Santiago, 2015)
      © 2015, Rev Med Chile. All rights reserved. Background A secular trend towards a younger age of puberty onset has been reported in Chilean girls. Aim: To evaluate the age of onset of puberty and prevalence of early puberty ...
    • The Diagnosis of Polycystic Ovary Syndrome during Adolescence 
      Witchel, Selma F.; Oberfield, Sharon; Rosenfield, Robert L.; Codner Dujovne, Ethel; Bonny, Andrea; Ibáñez, Lourdes; Pena, Alexia; Horikawa, Reiko; Gómez Lobo, Verónica; Joel, Dipesalema; Tfayli, Hala; Arslanian, Silva; Dabadghao, Preeti; García Rudaz, Cecilia; Lee, Peter A. (Karger AG, 2015)
      Background/Aims: The diagnostic criteria for polycystic ovary syndrome (PCOS) in adolescence are controversial, primarily because the diagnostic pathological features used in adult women may be normal pubertal physiological ...
    • Diagnóstico del Síndrome de Ovario Poliquístico: nuevos fenotipos, nuevas incógnitas 
      Merino, Paulina; Schulin Zeuthen, Carolina; Codner Dujovne, Ethel (2009)
      Polycystic ovarian syndrome (PCOS), includes a wide spectrum of clinical symptoms and signs. Three different diagnostic classifications have been proposed to define this disease. The first one, published in 1990, known ...
    • Early onset of primary hypogonadism revealed by serum anti-Müllerian hormone determination during infancy ... 
      Grinspon, R. P.; Bedecarrás, P.; Ballerini, M. G.; Iñíguez Vila, Germán; Rocha, A.; Mantovani Rodrigues Resende, E. A.; Brito, V. N.; Milani, C.; Figueroa Gacitúa, V.; Chiesa, A.; Keselman, A.; Gottlieb, S.; Borges, M. F.; Ropelato, M. G.; Picard, J. Y.; Codner Dujovne, Ethel; Rey, R. A. (2011)
      Male patients with an extra sex chromosome or autosome are expected to present primary hypogonadism at puberty owing to meiotic germ-cell failure. Scarce information is available on trisomy 21, a frequent autosomal aneuploidy. ...
    • Estrogen and type 1 diabetes mellitus 
      Codner Dujovne, Ethel (2008)
      Patients with type 1 diabetes mellitus (T1DM) face an array of difficulties during puberty which tend to be more significant in females. Excessive weight and fat mass gain, deterioration of metabolic control, loss of height ...
    • Female reproduction and type 1 diabetes: From mechanisms to clinical findings 
      Codner Dujovne, Ethel; Merino, P. M.; Tena-Sempere, M. (2012)
      Background: The functional reproductive alterations seen in women with type 1 diabetes (T1D) have changed as therapy has improved. Historically, patients with T1D and insufficient metabolic control exhibited a high prevalence ...
    • High HOMA-IR, adjusted for puberty, relates to the metabolic syndrome in overweight and obese Chilean youths 
      Burrows, Raquel; Leiva Balich, Laura; Weisstaub, Gerardo; Lera Marques, Lydia; Albala Brevis, Cecilia; Blanco, Estela; Gahagan, Sheila (2011)
      Objective: To determine how the homeostasis model assessment of insulin resistance (HOMA-IR) is related to metabolic risk in a sample of overweight and obese Chilean youths accounting for Tanner stage. Methods: A cross-sectional ...
    • Optimizing growth hormone therapy during puberty 
      Codner Dujovne, Ethel; Mericq, Verónica; Cassorla Goluboff, Fernando (1997)
      During puberty, growth hormone (GH)-deficient children may experience difficulties achieving an appropriate pubertal growth spurt. We review the complex hormonal interactions which occur during puberty. At least two ...
    • Precocious pubarche: Experience in 173 cases Pubarquia precoz: Experiencia en 173 casos 
      Eyzaguirre, Francisca C.; Bancalari, Rodrigo; Youlton, Ronald; Román, Rossana; Silva, Ricardo; García, Hernán; Mericq, Verónica (2009)
      Background: Precocious pubarche (PP), defined as the development of sexual pubic hair before 8 years of age in females and before 9 years in males, is usually a benign condition but it can also be the first sign of an ...
    • Premature thelarche from phenotype to genotype 
      Codner Dujovne, Ethel; Román, Rossana (2008)
      Premature thelarche is a benign condition, which has been described as a "variant of puberty". Early breast development is especially prevalent during the first year of life, when the gonadal axis is usually active. ...
    • Pubertal origin of the larger sex dimorphism for adult stature of a Chilean population 
      Valenzuela, Carlos Y. (1983)
      Students aged 6 to 20 years attending the public schools in the Northern Area of Santiago, Chile, were examined to search for the developmental origin of the large sex dimorphism in adult stature found in this population. ...
    • Puberty and ovarian function in girls with type 1 diabetes mellitus 
      Codner Dujovne, Ethel; Cassorla Goluboff, Fernando (2009)
      Insulin is well known for its effects on carbohydrate metabolism, but this hormone also plays an important role in regulating ovarian function. Granulosa, theca and stromal ovarian cells may be affected by insulin deficiency ...
    • Reproductive hormones during pubertal transition in girls with transient Thelarche 
      Soto, Julio; Pereira Scalabrino, Ana; Busch, Alexander Siegfried; Almstrup, Kristian; Corvalán Aguilar, Camila; Iñíguez Vila, Germán; Juul, Anders; Mericq Guila, Verónica (Wiley, 2020)
      Context Transient thelarche (TT), that is, the appearance, regression and subsequent reappearance of breast buds, is a frequent phenomenon, but little is known about pubertal transition in these girls. Objective To describe ...
    • Secretory patterns of leptin and luteinizing hormone in food-restricted young female sheep 
      Recabarren, Sergio E.; Lobos, Alejandro; Torres, Verónica; Oyarzo, Roberto; Sir Petermann, Teresa (Society of Biology of Chile, 2004)
      Leptin, the product of the ob gene, has been proposed as a metabolic signal that regulates the secretion of GnRH/LH. This may be critical during prepubertal development to synchronize information about energy stores and ...
    • Tobacco, alcohol, and illicit drug use in adolescents with diabetes mellitus 
      Martínez Aguayo, Alejandro; Araneda, Juan Carlos; Fernandez, Daniela; Gleisner, Andrea; Perez, Virginia; Codner Dujovne, Ethel (2007)
      Background: Substance abuse in adolescents with diabetes mellitus (DM) is associated with the development of acute and chronic complications. Objective: To determine the prevalence of alcohol, tobacco, and illicit drug ...