RESUMO
OBJECTIVE: To verify if the frequency of spontaneous pubertal development among girls with Turner syndrome (TS) diagnosed in infancy and childhood is greater than that of patients diagnosed later. SUBJECTS AND METHODS: Thirty three girls aged < 10 years at the time of diagnosis were evaluated regarding pubertal development. The frequency of spontaneous puberty was compared with that of girls aged > 13 years diagnosed at the same service. RESULTS: Sixteen of 32 informative patients had signs of spontaneous puberty, a frequency greater than that of patients diagnosed later. In six patients, there was no progression of puberty; menarche occurred in six, and one became pregnant, but the fetus was a stillborn. Spontaneous puberty was absent in all cases with 45,X karyotype. CONCLUSIONS: The greater prevalence of spontaneous puberty in girls whose diagnosis was not based on pubertal delay suggests that, among those diagnosed later, there is a bias towards patients with hypogonadism. Arq Bras Endocrinol Metab. 2012;56(9):653-7.
OBJETIVO: Verificar se a frequência de puberdade espontânea em meninas com síndrome de Turner (ST) diagnosticadas na infância é superior a de pacientes diagnosticadas posteriormente. SUJEITOS E MÉTODOS: Foram avaliadas 33 meninas < 10 anos ao diagnóstico quanto ao desenvolvimento puberal. A frequência de puberdade espontânea foi comparada com a de pacientes com mais de 13 anos diagnosticadas no mesmo serviço. RESULTADOS: Dezesseis das 32 pacientes informativas tiveram sinais puberais espontâneos, frequência superior a daquelas diagnosticadas posteriormente. Em seis delas, não houve progressão da puberdade; a menarca ocorreu em seis casos e uma paciente ficou grávida, porém o feto foi natimorto. Em todos os casos com cariótipo 45,X não ocorreu puberdade espontânea. CONCLUSÕES: A maior prevalência de puberdade espontânea em meninas cujo diagnóstico não se baseou em atraso puberal sugere que naquelas detectadas posteriormente haja distorção em favor de pacientes com hipogonadismo. Arq Bras Endocrinol Metab. 2012;56(9):653-7.
Assuntos
Adolescente , Criança , Feminino , Humanos , Puberdade/fisiologia , Síndrome de Turner/fisiopatologia , Diagnóstico Precoce , Hipogonadismo/diagnóstico , Cariótipo , Puberdade/genética , Síndrome de Turner/diagnóstico , Síndrome de Turner/genéticaRESUMO
OBJECTIVE: To investigate how sexual identity is structured and also to investigate the relationship between sexual identity, choice of sex object and sexual difference. METHOD: Semi-structured interviews were held with seven adult patients who were born with sex differentiation disorders: Two had 5-alpha-reductase type-2 deficiency and five had congenital adrenal hyperplasia. CONCLUSIONS: Sex is trauma. Neither male nor female nor any other gender identification implies the choice of sex object, genders of partners or sexual practices.
OBJETIVO: Interrogar como se estrutura a identidade sexual. Investigar as relações entre identidade sexual, escolha de objeto sexual e diferença sexual. MÉTODO: Aplicamos entrevista semi-estruturada em pacientes com distúrbios da diferenciação sexual: 2 com deficiência da 5 alfa redutase tipo 2 e 5 com Hiperplasia Adrenal Congênita. CONCLUSÕES: Sexo é trauma. Identificação masculina, feminina ou outras não implicam no sexo do objeto de escolha, gênero dos parceiros ou práticas sexuais.
OBJECTIF: Ce travail a pour but d'analyser la façon comment l'identité sexuelle se structure, ainsi que d'investiguer les rapports entre l'identité sexuelle, le choix de l'objet sexuel et la différence sexuelle. MÉTHODE: Entrevue semi-dirigée de patients porteur de troubles de différenciation sexuelle: Deux patients porteurs du déficit 5-alpha réductase type 2 et cinq patients porteurs d'hyperplasie congénitale des surrénales. CONCLUSION: Le sexe est un traumatisme. L'identification masculine, féminine ou autre n'implique pas le sexe de l'objet du choix, le genre des partenaires ou les pratiques sexuels.
OBJETIVO: Interrogar como se estructura la identidad sexual. Investigar las relaciones entre identidad sexual, elección de objeto sexual y diferencia sexual. MÉTODO: Fueron aplicadas entrevistas semiestructuradas en pacientes con trastornos en la diferenciación sexual: 2 con deficiencias de la 5 Alpha Redutase tipo 2 y 5 con Hiperplasia Adrenal Congénita. CONCLUSIÓN: Sexo es trauma. Identificación masculina, femenina u otras no implican en el sexo del objeto de elección, el género de los compañeros (partenaires) o prácticas sexuales.
Assuntos
Humanos , Identidade de Gênero , Diferenciação SexualRESUMO
OBJECTIVE: To investigate how sexual identity is structured and also to investigate the relationship between sexual identity, choice of sex object and sexual difference. METHOD: Semi-structured interviews were held with seven adult patients who were born with sex differentiation disorders: Two had 5-alpha-reductase type-2 deficiency and five had congenital adrenal hyperplasia. CONCLUSIONS: Sex is trauma. Neither male nor female nor any other gender identification implies the choice of sex object, genders of partners or sexual practices.(AU)
OBJETIVO: Interrogar como se estrutura a identidade sexual. Investigar as relações entre identidade sexual, escolha de objeto sexual e diferença sexual. MÉTODO: Aplicamos entrevista semi-estruturada em pacientes com distúrbios da diferenciação sexual: 2 com deficiência da 5 alfa redutase tipo 2 e 5 com Hiperplasia Adrenal Congênita. CONCLUSÕES: Sexo é trauma. Identificação masculina, feminina ou outras não implicam no sexo do objeto de escolha, gênero dos parceiros ou práticas sexuais.(AU)
OBJECTIF: Ce travail a pour but d'analyser la façon comment l'identité sexuelle se structure, ainsi que d'investiguer les rapports entre l'identité sexuelle, le choix de l'objet sexuel et la différence sexuelle. MÉTHODE: Entrevue semi-dirigée de patients porteur de troubles de différenciation sexuelle: Deux patients porteurs du déficit 5-alpha réductase type 2 et cinq patients porteurs d'hyperplasie congénitale des surrénales. CONCLUSION: Le sexe est un traumatisme. L'identification masculine, féminine ou autre n'implique pas le sexe de l'objet du choix, le genre des partenaires ou les pratiques sexuels.(AU)
OBJETIVO: Interrogar como se estructura la identidad sexual. Investigar las relaciones entre identidad sexual, elección de objeto sexual y diferencia sexual. MÉTODO: Fueron aplicadas entrevistas semiestructuradas en pacientes con trastornos en la diferenciación sexual: 2 con deficiencias de la 5 Alpha Redutase tipo 2 y 5 con Hiperplasia Adrenal Congénita. CONCLUSIÓN: Sexo es trauma. Identificación masculina, femenina u otras no implican en el sexo del objeto de elección, el género de los compañeros (partenaires) o prácticas sexuales.(AU)
Assuntos
Humanos , Identidade de Gênero , Diferenciação SexualRESUMO
OBJECTIVE: To verify if the frequency of spontaneous pubertal development among girls with Turner syndrome (TS) diagnosed in infancy and childhood is greater than that of patients diagnosed later. SUBJECTS AND METHODS: Thirty three girls aged < 10 years at the time of diagnosis were evaluated regarding pubertal development. The frequency of spontaneous puberty was compared with that of girls aged > 13 years diagnosed at the same service. RESULTS: Sixteen of 32 informative patients had signs of spontaneous puberty, a frequency greater than that of patients diagnosed later. In six patients, there was no progression of puberty; menarche occurred in six, and one became pregnant, but the fetus was a stillborn. Spontaneous puberty was absent in all cases with 45,X karyotype. CONCLUSIONS: The greater prevalence of spontaneous puberty in girls whose diagnosis was not based on pubertal delay suggests that, among those diagnosed later, there is a bias towards patients with hypogonadism.
Assuntos
Puberdade/fisiologia , Síndrome de Turner/fisiopatologia , Adolescente , Criança , Diagnóstico Precoce , Feminino , Humanos , Hipogonadismo/diagnóstico , Cariótipo , Puberdade/genética , Síndrome de Turner/diagnóstico , Síndrome de Turner/genéticaRESUMO
BACKGROUND AND AIM: Turner syndrome (TS) patients have an increased risk of weight gain and metabolic syndrome. To date, it is unknown what factors are involved in this metabolic process, even though it is recognized that TS patients are frequently born small-for-gestational age. The aim of this study was to evaluate the correlation between lipid and glucose profiles with being overweight and birth weight and length in TS patients. STUDY DESIGN: This was a cross-sectional study. SUBJECTS AND OUTCOME MEASURES: Serum glucose, insulin (HOMA-IR), total cholesterol, and triglycerides were measured in 64 patients with TS. Data regarding birth weight and length and current body mass index (BMI) were also evaluated. RESULTS: Total cholesterol showed a significant negative correlation with birth weight and a positive correlation with BMI; triglycerides showed significant negative correlation with birth weight and length and a positive correlation with BMI; and HOMA-IR showed a significant negative correlation with birth weight and length. Low birth weight and a high BMI were predictive for 28% of total cholesterol and triglycerides; and low birth weight for 22% of HOMA-IR. CONCLUSIONS: Lipid profile was correlated with a high current BMI and low birth weight and length in TS patients and glucose profile only with low birth weight. Thus far, growth retardation may play a role in metabolic derangements in this group of patients, being considered another example of fetal programming.
Assuntos
Desenvolvimento Fetal/fisiologia , Doenças Metabólicas/etiologia , Síndrome de Turner/etiologia , Adolescente , Adulto , Peso ao Nascer/fisiologia , Glicemia/metabolismo , Índice de Massa Corporal , Criança , Estudos Transversais , Feminino , Desenvolvimento Fetal/genética , Humanos , Insulina/sangue , Resistência à Insulina/genética , Resistência à Insulina/fisiologia , Doenças Metabólicas/sangue , Doenças Metabólicas/diagnóstico , Doenças Metabólicas/genética , Gravidez , Efeitos Tardios da Exposição Pré-Natal/genética , Triglicerídeos/sangue , Síndrome de Turner/sangue , Síndrome de Turner/diagnóstico , Síndrome de Turner/genética , Adulto JovemRESUMO
OBJECTIVE: To evaluate insulin resistance and lipid profile in women with congenital adrenal hyperplasia (CAH) caused by classical 21-hydroxylase deficiency (21OHD), and their association with body mass index (BMI) and corticosteroid dosage. SUBJECTS AND METHODS: We assessed BMI, waist circumference, current glucocorticoid dosage, glucose, insulin and lipid profile in eighteen young women (mean ± SD, 19.3 ± 3.0 years) with 21OHD CAH. RESULTS: BMI was normal in 12 patients, 5 of them were overweight, and 1 was obese. Waist circumference was high in 7 patients. Fasting insulin and HOMA-IR were elevated in seven and eight patients, respectively. Total cholesterol and triglycerides were high in only two patients, and HDL-cholesterol was low in four. Insulin resistance was not associated with BMI, waist circumference or glucocorticoid dose. CONCLUSIONS: Young women with 21OHD CAH had infrequent dyslipidemia, but had a higher prevalence of insulin resistance and central obesity, that were independent of BMI or corticosteroid dosage.
OBJETIVO: Avaliar a presença de resistência insulínica e dislipidemia em mulheres com hiperplasia adrenal congênita (HAC) por deficiência da 21-hidroxilase (21OHD) e investigar a associação com índice de massa corporal (IMC) e dose de glicocorticoide prescrita. PACIENTES E MÉTODOS: Em 18 mulheres jovens (média ± DP, 19,3 ± 3,0 anos), avaliamos IMC, circunferência abdominal, dose de glicocorticoide, glicemia, insulinemia e perfil lipídico. RESULTADOS: O IMC foi normal em 12 pacientes; 5 apresentavam sobrepeso e 1 apresentou obesidade. Circunferência abdominal estava aumentada em 7 pacientes. Insulinemia de jejum e HOMA-IR estavam elevados em 7 e 8 pacientes, respectivamente. Apenas 2 pacientes apresentaram aumento de colesterol total ou de triglicérides e 4, diminuição dos níveis de HDL-colesterol. Resistência insulínica não apresentou associação com IMC, circunferência abdominal ou dose de glicocorticoide prescrita. CONCLUSÃO: Mulheres jovens com CAH 21OHD apresentaram pouca dislipidemia, mas tiveram alta prevalência de resistência insulínica e obesidade central, independentemente do IMC e da dose de glicocorticoide prescrita.
Assuntos
Adolescente , Feminino , Humanos , Adulto Jovem , Hiperplasia Suprarrenal Congênita/metabolismo , Índice de Massa Corporal , Glucocorticoides/administração & dosagem , Resistência à Insulina/fisiologia , Lipídeos/sangue , Hiperplasia Suprarrenal Congênita/tratamento farmacológico , Glicemia/metabolismo , Insulina/metabolismo , Obesidade Abdominal/diagnóstico , Estatísticas não Paramétricas , Circunferência da Cintura/fisiologiaRESUMO
This study analyzes the body composition of young adult women with Turner syndrome (TS) either treated or not treated with recombinant human growth hormone (rhGH) and compares them with a group of healthy women. Fifty-two non-treated TS patients (23.0 ± 5.8 years), 30 treated with rhGH (21.5 ± 1.5 years), and 133 healthy young adult women (22.9 ± 3.2 years) were evaluated regarding height (H) and weight, body mass index (BMI), brachial perimeter and tricipital cutaneous fold (fat and lean areas at the arm), sitting height (SRH = sitting height/H × 100), leg length (leg/H), waist and hip circumferences (waist/hip), and bioimpedance (percentages of water, lean mass, and fat mass). Age at start of rhGH therapy varied from 7.8 to 15.1 years (10.0 ± 1.3 years), duration of treatment from 2.8 to 8.2 years (3.7 ± 1.5 years), and the mean dose was 0.42 mg/kg/w (from 0.32 to 0.50 mg/kg/w). Body composition (except height) did not differ between TS groups, but there were differences when compared to the control group: weight and sitting height were lower in TS patients; and BMI, SHR, and leg/H were higher. There was an association between all groups with regards to BMI, waist, SHR, and leg/H, but not in percentage of fat mass. SHR was positively correlated with BMI, waist, hip, and percentage of fat mass. This sample of TS patients (with and without rhGH therapy) did not differ in BMI or body composition. However, there were differences between patients with TS patients and normal healthy women. Regardless of rhGH therapy, TS patients should be monitored, particularly for sitting height, SHR, leg length, leg/H, and waist/hip.
Assuntos
Composição Corporal/efeitos dos fármacos , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento Humano/uso terapêutico , Síndrome de Turner/complicações , Adolescente , Adulto , Composição Corporal/fisiologia , Distribuição da Gordura Corporal , Índice de Massa Corporal , Estudos de Casos e Controles , Criança , Estudos Transversais , Feminino , Transtornos do Crescimento/complicações , Humanos , Estudos Longitudinais , Análise por Pareamento , Proteínas Recombinantes , Valores de Referência , Síndrome de Turner/tratamento farmacológico , Adulto JovemRESUMO
OBJECTIVE: To evaluate insulin resistance and lipid profile in women with congenital adrenal hyperplasia (CAH) caused by classical 21-hydroxylase deficiency (21OHD), and their association with body mass index (BMI) and corticosteroid dosage. SUBJECTS AND METHODS: We assessed BMI, waist circumference, current glucocorticoid dosage, glucose, insulin and lipid profile in eighteen young women (mean ± SD, 19.3 ± 3.0 years) with 21OHD CAH. RESULTS: BMI was normal in 12 patients, 5 of them were overweight, and 1 was obese. Waist circumference was high in 7 patients. Fasting insulin and HOMA-IR were elevated in seven and eight patients, respectively. Total cholesterol and triglycerides were high in only two patients, and HDL-cholesterol was low in four. Insulin resistance was not associated with BMI, waist circumference or glucocorticoid dose. CONCLUSIONS: Young women with 21OHD CAH had infrequent dyslipidemia, but had a higher prevalence of insulin resistance and central obesity, that were independent of BMI or corticosteroid dosage.
Assuntos
Hiperplasia Suprarrenal Congênita/metabolismo , Índice de Massa Corporal , Glucocorticoides/administração & dosagem , Resistência à Insulina/fisiologia , Lipídeos/sangue , Adolescente , Hiperplasia Suprarrenal Congênita/tratamento farmacológico , Glicemia/metabolismo , Feminino , Humanos , Insulina/metabolismo , Obesidade Abdominal/diagnóstico , Estatísticas não Paramétricas , Circunferência da Cintura/fisiologia , Adulto JovemRESUMO
In 2004, Costa-Santos and cols. reported 24 patients from 19 Brazilian families with 17α-hydroxylase deficiency and showed that p.W406R and p.R362C corresponded to 50 percent and 32 percent of CYP17A1 mutant alleles, respectively. The present report describes clinical and molecular data of six patients from three inbred Brazilian families with 17α-hydroxlyse deficiency. All patients had hypogonadism, amenorrhea and hypertension at diagnosis. Two sisters were found to be 46,XY with both gonads palpable in the inguinal region. All patients presented hypergonadotrophic hypogonadism, with high levels of ACTH (> 104 ng/mL), suppressed plasmatic renin activity, low levels of potassium (< 2.8 mEq/L) and elevated progesterone levels (> 4.4 ng/mL). Three of them, including two sisters, were homozygous for p.W406R mutation and the other three (two sisters and one cousin) were homozygous for p.R362C. The finding of p.W406R and p.R362C in the CYP17A1 gene here reported in additional families, confirms them as the most frequent mutations causing complete combined 17α-hydroxylase/17,20-lyase deficiency in Brazilian patients.
Em 2004, segundo Costa-Santos e cols., p.W406R e p.R362C correspondiam a 50 por cento e 32 por cento dos alelos mutantes do gene CYP17A1, respectivamente, em 24 pacientes de 19 famílias brasileiras com deficiência da 17α-hidroxilase. Apresentamos os dados clνnicos e moleculares de seis pacientes de três famílias consanguíneas brasileiras com deficiência da 17α-hidroxilase. Todas as pacientes apresentavam hipogonadismo, amenorreia e hipertensão ao diagnóstico. Duas irmãs tinham cariótipo 46,XY, ambas com gônadas palpáveis na região inguinal. Todas tinham hipogonadismo hipergonadotrófico, com nível aumentado de ACTH (> 104 ng/mL), atividade de renina plasmática suprimida, baixos níveis de potássio (< 2,8 mEq/L) e progesterona aumentada (> 4,4 ng/mL). Três delas, incluindo duas irmãs, apresentaram homozigose para a mutação p.W406R e as outras três (duas irmãs e uma prima) foram homozigotas para a mutação p.R362C. A recorrência das mutações p.W406R e p.R362C no gene CYP17A1 aqui relatada em famílias adicionais confirma que essas são as mais frequentes causadoras do fenótipo completo da deficiência combinada de 17α-hidroxilase/17,20-liase em pacientes brasileiros.
Assuntos
Adolescente , Feminino , Humanos , Adulto Jovem , Hiperplasia Suprarrenal Congênita/genética , /genética , Alelos , Hiperplasia Suprarrenal Congênita/sangue , Brasil , Mutação , LinhagemRESUMO
The Y-chromosome-located SRY gene encodes a small testis-specific protein containing a DNA-binding motif known as the HMG (high mobility group) box. However, mutations in SRY are not frequent especially in cases of 46,XY partial gonadal dysgenesis. Several sex-determining genes direct the fate of the bipotential gonad to either testis or ovary. In addition, heterozygous small deletions in 9p can cause complete and partial XY gonadal dysgenesis without other symptoms. Human DMRT1 gene, which is located at 9p24.3, is expressed in testis and ovary and has been considered, among others, a candidate autosomal gene responsible for gonadal dysgenesis. In this report we describe a nucleotide insertion in DMRT1 3'UTR in a patient of XY partial gonadal dygenesis. The 3'UTR+11insT is located within a conserved motif important for mRNA stabilization.
O gene SRY, localizado no cromossomo Y, codifica uma proteína testículo-específica contendo um domínio HMG (grupo de alta mobilidade) de ligação ao DNA. No entanto, mutações no gene SRY não são frequentes, especialmente nos casos de disgenesia gonadal parcial em indivíduos 46,XY. São atualmente conhecidos vários genes que participam do processo de diferenciação gonadal, tanto para o desenvolvimento testicular quanto para o ovariano. Além disso, pequenas deleções heterozigotas em 9p podem causar disgenesia gonadal XY completa ou parcial, sem outros sintomas associados. O gene DMRT1 humano, que está localizado em 9p24.3, é expresso no testículo e ovário no período fetal e tem sido considerado um dos genes autossômicos envolvido na etiologia das disgenesias gonadais. Neste trabalho, descrevemos a inserção de um nucleotídeo em 3'UTR do gene DMRT1 em um paciente 46,XY com disgenesia gonadal parcial. A mutação 3'UTR+11insT está localizada dentro de um motivo conservado importante para a estabilização do mRNA.