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1.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 41(10): 1249-1254, 2024 Oct 10.
Artigo em Chinês | MEDLINE | ID: mdl-39344622

RESUMO

OBJECTIVE: To explore the clinical characteristics and pathogenic variant in a child with Cantú syndrome (CS). METHODS: A male who was admitted to the Children's Hospital Affiliated to Zhengzhou University on February 23, 2022 was selected as the study subject. Clinical data of the child was collected. Peripheral blood samples of the child and his parents were collected and subjected to whole-exome sequencing (WES). Candidate variant was verified by Sanger sequencing. This study was approved by the Children's Hospital Affiliated to Zhengzhou University (Ethics No. 2023-K-087). RESULTS: The child, a 3-year-and-2-month-old male, was born with hirsutism, with heavy hair all over the body and peculiar facial features. Routine echocardiography 1 month before had discovered atrial septal defect. Sequencing revealed that the child has harbored a heterozygous c.2438G>C (p.S813T) variant of the ABCC9 gene, which was de novo in origin. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the c.2438G>C variant was classified as likely pathogenic (PS2+PM2_Supporting+PP3). CONCLUSION: The heterozygous c.2438G>C variant of the ABCC9 gene probably underlay the pathogenesis of CS in this child.


Assuntos
Hirsutismo , Receptores de Sulfonilureias , Humanos , Masculino , Receptores de Sulfonilureias/genética , Pré-Escolar , Hirsutismo/genética , Mutação , Sequenciamento do Exoma , Osteocondrodisplasias/genética , Testes Genéticos , Cardiomegalia , Hipertricose
2.
Medicina (Kaunas) ; 60(9)2024 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-39336541

RESUMO

Background and Objectives: Polycystic ovary syndrome (PCOS) is a frequent and complex multidisciplinary disorder. Data regarding the role of genes involved in vitamin D metabolism in PCOS are as-yet elusive but suggest an association of VDR (vitamin D receptor) and vitamin D levels with metabolic, endocrine and cutaneous manifestations. The aim of this study was to evaluate the association between VDR gene polymorphisms and cutaneous manifestations, to find a correlation between hormonal parameters, oxidative stress and skin manifestations in women with PCOS, and to determine the impact of VDR gene polymorphisms on these parameters. Materials and Methods: This case-control study included 39 controls and 46 women with PCOS, matched by age and BMI distribution. Acne, hirsutism, seborrhea, androgenetic alopecia, oxidative stress and androgen hormones were recorded. VDR gene polymorphisms ApaI, FokI and TaqI were examined by polymerase chain reaction restriction fragment length polymorphism, and the androgen hormone (total testosterone, DHEAS), SHBG and malondialdehyde levels were assessed. Results: The most frequent skin manifestations in PCOS cases were acne followed by seborrhea, hirsutism and androgenic alopecia. The VDR-FokI polymorphism CC genotype had a significant protective role in the odds of acne (OR = 0.11, 95% CI: [0.02, 0.70], p = 0.015, p-corrected = 0.040) and seborrhea (OR = 0.15, 95% CI: [0.03, 0.75], p = 0.019, p-corrected = 0.039). The results demonstrated a significant protective effect of the C allele on the odds of acne and seborrhea in PCOS cases. Moreover, the dominant genotype of VDR-TaqI could have a protective role against oxidative stress (lower MDA levels) compared to patients carrying the TT genotype. Conclusions: In summary, this is the first study to demonstrate that the FokI CC genotype may have a protective role against both acne and seborrhea in women with PCOS, while the VDR-TaqI dominant genotype is associated with diminished oxidative stress in PCOS patients.


Assuntos
Acne Vulgar , Estresse Oxidativo , Síndrome do Ovário Policístico , Receptores de Calcitriol , Humanos , Síndrome do Ovário Policístico/genética , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/sangue , Feminino , Receptores de Calcitriol/genética , Estresse Oxidativo/genética , Adulto , Estudos de Casos e Controles , Acne Vulgar/genética , Acne Vulgar/complicações , Polimorfismo Genético , Hirsutismo/genética , Hirsutismo/complicações , Hirsutismo/etiologia , Hirsutismo/sangue , Alopecia/genética , Adulto Jovem
3.
Pediatr Dermatol ; 41(2): 307-310, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37817291

RESUMO

Barber-Say syndrome (BSS) is a rare congenital ectodermal dysplasia with few cases reported in the literature. We describe a 9-year-old boy with congenital generalized hypertrichosis and multiple rhabdomyomatous mesenchymal hamartomas (RMHs) on his nose and periocular region. Next-generation sequencing, performed in DNA from a blood sample, and RMH tissue, revealed a pathogenic variant in the TWIST2 gene, which was not detected in a salivary sample of the patient, nor in his parents. Therefore, we consider this variant as de novo mosaicism. To our knowledge, this is the first case of multiple RMHs associated with BSS.


Assuntos
Anormalidades Múltiplas , Doenças Palpebrais , Hamartoma , Hipertelorismo , Hipertricose , Macrostomia , Anormalidades da Pele , Masculino , Humanos , Criança , Hipertricose/genética , Hipertricose/congênito , Anormalidades Múltiplas/genética , Hirsutismo/genética , Hamartoma/complicações , Hamartoma/diagnóstico , Hamartoma/genética
4.
Epigenetics ; 18(1): 2282319, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37992405

RESUMO

Research suggests that polycystic ovary syndrome (PCOS) traits (e.g., hyperandrogenism) may create a suboptimal intrauterine environment and induce epigenetic modifications. Therefore, we assessed the associations of PCOS traits with neonatal DNA methylation (DNAm) using two independent cohorts. DNAm was measured in both cohorts using the Infinium MethylationEPIC array. Multivariable robust linear regression was used to determine associations of maternal PCOS exposure or preconception testosterone with methylation ß-values at each CpG probe and corrected for multiple testing by false-discovery rate (FDR). In the birth cohort, 12% (102/849) had a PCOS diagnosis (8.1% PCOS without hirsutism; 3.9% PCOS with hirsutism). Infants exposed to maternal PCOS with hirsutism compared to no PCOS had differential DNAm at cg02372539 [ß(SE): -0.080 (0.010); FDR p = 0.009], cg08471713 [ß(SE):0.077 (0.014); FDR p = 0.016] and cg17897916 [ß(SE):0.050 (0.009); FDR p = 0.009] with adjustment for maternal characteristics including pre-pregnancy BMI. PCOS with hirsutism was also associated with 8 differentially methylated regions (DMRs). PCOS without hirsutism was not associated with individual CpGs. In an independent preconception cohort, total testosterone concentrations were associated with 3 DMRs but not with individual CpGs, though the top quartile of testosterone compared to the lowest was marginally associated with increased DNAm at cg21472377 near an uncharacterized locus (FDR p = 0.09). Examination of these probes and DMRs indicate they may be under foetal genetic control. Overall, we found several associations among newborns exposed to PCOS, specifically when hirsutism was reported, and among newborns of women with relatively higher testosterone around conception.


Assuntos
Hiperandrogenismo , Síndrome do Ovário Policístico , Gravidez , Lactente , Humanos , Recém-Nascido , Feminino , Síndrome do Ovário Policístico/genética , Hirsutismo/genética , Hirsutismo/complicações , Hirsutismo/diagnóstico , Metilação de DNA , Hiperandrogenismo/complicações , Hiperandrogenismo/diagnóstico , Testosterona
5.
Am J Med Genet A ; 185(10): 3161-3166, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34145742

RESUMO

Tel Hashomer camptodactyly syndrome is a long-known entity characterized by camptodactyly with muscular hypoplasia, skeletal dysplasia, and abnormal palmar creases. Currently, the genetic basis for this disorder is unknown, thus there is a possibility that this clinical presentation may be contained within another genetic diagnosis. Here, we present a multiplex family with a previous clinical diagnosis of Tel Hashomer camptodactyly syndrome. Whole exome sequencing and pedigree-based analysis revealed a novel hemizygous truncating variant c.269_270dup (p.Phe91Alafs*34) in the FGD1 gene (NM_004463.3) in all three symptomatic patients, congruous with a diagnosis of Aarskog-Scott syndrome. Our report adds to the limited data on Aarskog-Scott syndrome, and emphasizes the importance of unbiased comprehensive molecular testing toward establishing a diagnosis for genetic syndromes with unknown genetic basis.


Assuntos
Nanismo/diagnóstico , Face/anormalidades , Doenças Genéticas Ligadas ao Cromossomo X/diagnóstico , Predisposição Genética para Doença , Genitália Masculina/anormalidades , Fatores de Troca do Nucleotídeo Guanina/genética , Deformidades Congênitas da Mão/diagnóstico , Cardiopatias Congênitas/diagnóstico , Comunicação Interatrial/diagnóstico , Hirsutismo/diagnóstico , Doenças Musculares/diagnóstico , Diagnóstico Diferencial , Nanismo/genética , Nanismo/patologia , Face/patologia , Feminino , Doenças Genéticas Ligadas ao Cromossomo X/genética , Doenças Genéticas Ligadas ao Cromossomo X/patologia , Genitália Masculina/patologia , Deformidades Congênitas da Mão/genética , Deformidades Congênitas da Mão/patologia , Cardiopatias Congênitas/genética , Cardiopatias Congênitas/patologia , Comunicação Interatrial/genética , Hirsutismo/genética , Humanos , Deformidades Congênitas dos Membros , Masculino , Doenças Musculares/genética , Linhagem , Sequenciamento do Exoma
6.
J Endocrinol Invest ; 43(9): 1271-1281, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32166698

RESUMO

PURPOSE: The study aimed to investigate whether repeat number in the androgen receptor (AR) gene has any contribution to phenotypes of the disease of androgen excess (polycystic ovary syndrome (PCOS), idiopathic hyperandrogenemia (IHA) and idiopathic hirsutism (IH) in a cohort of Turkish women. METHODS: Three hundred and fifty-four voluntary premenopausal women (172 healthy controls and 182 patients with androgen excess disorders and idiopathic hirsutism) 18-45 years of age seen at an outpatient endocrine clinic at Erciyes University Hospital between January 2013 and December 2014 were included. All volunteers have undergone physical examination and biochemical evaluation. The polymorphic (CAG)n repeat of the human AR was determined by fragment analyses. RESULTS: Detailed clinical analyses of the patients ended up with 137 PCOS, 24 IHA, and 21 IH. Pairwise comparisons revealed the CAG repeat number differences between the PCOS and controls (p = 0.005) and IH and controls (p = 0.020). Women with CAG repeat length ≤ 17 had a significantly increased twofold risk for PCOS than those women with > 17 CAG repeats OR: 2.0 (95% CI 1.2-3.3, p = 0.005). Women with CAG repeat length ≤ 17 had a significantly increased threefold risk for IH than those women with > 17 CAG repeats OR: 2.9 (95% CI 1.2-7.3, p = 0.020). When correlation analysis was performed, a weak negative correlation was detected between the short allele and FGS score (r = - 0.131, p = 0.013) and a positive relationship between total testosterone and longer allele in the IHA group (r = 0.425, p = 0.039). Median repeat length of the shorter allele between oligomenorrhea and woman with normal menstrual cycle was found to be statistically significant (p = 0.017). CONCLUSION: This study indicated that the risk of PCOS and IH is associated with the inheritance of ARs with shorter CAG repeats.


Assuntos
Hirsutismo/genética , Hiperandrogenismo/genética , Síndrome do Ovário Policístico/genética , Receptores Androgênicos/genética , Repetições de Trinucleotídeos/genética , Adolescente , Adulto , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Hirsutismo/sangue , Humanos , Hiperandrogenismo/sangue , Pessoa de Meia-Idade , Fenótipo , Síndrome do Ovário Policístico/sangue , Polimorfismo Genético , Testosterona/sangue , Turquia , Adulto Jovem
7.
J Endocrinol Invest ; 42(9): 1077-1087, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30811025

RESUMO

INTRODUCTION: Hirsutism is a medical sign rather than a disease affects 5-8% of women of reproductive age. Hirsutism is associated with hyperandrogenemia in most patients excluding those with idiopathic hirsutism (IH). The most common cause of hirsutism is polycystic ovary syndrome (PCOS) followed by IH and idiopathic hyperandrogenemia (IHA); however, the clinical presentation of non-classical congenital adrenal hyperplasia (NCAH) in females is often indistinguishable from other hyperandrogenic disorders with common clinical signs such as hirsutism. OBJECTIVE: The primary aim of the study is to examine the physical properties of the three genes and to make a detailed comparison of the mutations with the clinical data to contribute the etiology of hirsutism. SUBJECTS AND METHODS: 122 women admitted to the Endocrinology Clinic at Erciyes University Hospital with hirsutism were enrolled in the study between 2013-2014. All the participants were clinically evaluated. Protein-encoding exons, exon-intron boundaries of CYP21A2 (including proximal promoter), CYP11B1 and HSD3B2 genes were analyzed via state-of-the-art genetic studies. RESULTS: DNA sequencing analyses revealed two homozygous and three compound heterozygous 21-hydroxylase deficient (21OHD) NCAH patients. Additionally, three novel CYP21A2 mutations (A89V, M187I and G491S) and two novel CYP11B1 mutations (V188I and G87A) were determined. The frequencies of heterozygous mutations in CYP21A2 (including promoter), CYP11B1 and HSD3B2 genes were determined as 26.5% (15% coding region, 11.5% promoter), 11.5% and 0%, respectively. CONCLUSION: 21OHD-NCAH prevalence was determined to be ~4%. Unexpectedly, high heterozygous mutation rates were observed in CYP11B1 gene and CYP21A2 promoter region. CYP11B1 and HSD3B2 deficiencies were not prevalent in Turkish women with hirsutism despite the existence of higher heterozygous mutation rate in CYP11B1.


Assuntos
Biomarcadores/análise , Hirsutismo/diagnóstico , Mutação , Síndrome do Ovário Policístico/fisiopatologia , Progesterona Redutase/genética , Esteroide 11-beta-Hidroxilase/genética , Esteroide 21-Hidroxilase/genética , Adolescente , Adulto , Estudos de Coortes , Éxons , Feminino , Seguimentos , Genótipo , Hirsutismo/epidemiologia , Hirsutismo/genética , Humanos , Prognóstico , Regiões Promotoras Genéticas , Turquia/epidemiologia , Adulto Jovem
8.
Ophthalmic Plast Reconstr Surg ; 34(2): e61-e63, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29329175

RESUMO

Barber-Say syndrome is a rare autosomal dominant disease characterized by dysmorphic features, mainly of the eyelids and skin. It is caused by heterozygous mutations in gene TWIST2, localized in chromosome 2q37.3. The authors present the case of a pediatric patient with a clinical diagnosis of Barber-Say syndrome with ocular symptoms related to exposure keratitis. Molecular analysis of her DNA revealed a mutation on TWIST2 gene confirming the diagnosis of Barber-Say syndrome. Surgical treatment of the patient's eyelids resolved her signs and symptoms.


Assuntos
Doenças Palpebrais/genética , Hirsutismo/genética , Hipertelorismo/genética , Hipertricose/genética , Macrostomia/genética , Mutação , Proteínas Repressoras/genética , Anormalidades da Pele/genética , Proteína 1 Relacionada a Twist/genética , Pré-Escolar , Análise Mutacional de DNA , Doenças Palpebrais/cirurgia , Pálpebras/cirurgia , Feminino , Hirsutismo/cirurgia , Humanos , Hipertelorismo/cirurgia , Hipertricose/cirurgia , Macrostomia/cirurgia , Anormalidades da Pele/cirurgia , Transplante de Pele/métodos , Resultado do Tratamento
9.
Reprod Biol Endocrinol ; 14(1): 38, 2016 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-27423183

RESUMO

Polycystic ovary syndrome (PCOS) is a complex endocrine disorder affecting 5-10 % of women of reproductive age. It generally manifests with oligo/anovulatory cycles, hirsutism and polycystic ovaries, together with a considerable prevalence of insulin resistance. Although the aetiology of the syndrome is not completely understood yet, PCOS is considered a multifactorial disorder with various genetic, endocrine and environmental abnormalities. Moreover, PCOS patients have a higher risk of metabolic and cardiovascular diseases and their related morbidity, if compared to the general population.


Assuntos
Epigênese Genética/fisiologia , Hormônios Esteroides Gonadais/genética , Hormônios Esteroides Gonadais/metabolismo , Síndrome do Ovário Policístico/genética , Síndrome do Ovário Policístico/metabolismo , Animais , Feminino , Hirsutismo/diagnóstico , Hirsutismo/genética , Hirsutismo/metabolismo , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/genética , Hiperandrogenismo/metabolismo , Resistência à Insulina/fisiologia , Obesidade/diagnóstico , Obesidade/genética , Obesidade/metabolismo , Síndrome do Ovário Policístico/diagnóstico
10.
Rev. fac. cienc. méd. (Impr.) ; 13(1): 36-40, ene.-jun. 2016. ilus
Artigo em Espanhol | LILACS | ID: biblio-827222

RESUMO

El Síndrome de Cornelia de Lange es un trastorno del desarrollo poco frecuente, heterogéneo genéticamente, que se define en su forma clásica por hipocrecimiento antenatal y postnatal, microcefalia, rasgos faciales distintivos, sinofridia e hirsutismo, retraso mental y micromelia. Objetivo: dar a conocer las características clínicas de los pacientes con este síndrome para realizar diagnósticos oportunos, estudios pertinentes y manejos multidisciplinarios en los pacientes afectados. Caso Clínico, lactante femenina, 19 meses de edad, con antecedentes maternos: 17 años, embarazo de 34 semanas de gestación, con un control prenatal, atendida en Hospital Santa Bárbara Integrado, ingresada para uteroinhibición sin lograr respuesta y desencadena trabajo de parto. Recién nacida, femenina, cefálica, peso de 1,625 g, perímetro cefálico 29.5 cm, malformaciones en miembros superiores, ingresada a sala de neonatos por distrés respiratorio y prematurez. Evaluada por pediatra, quien describe características dismórficas. Al examen físico: focomelia, micromelia, pestañas largas y abundantes, sinofridia e hirsutismo. En la radiografía se observó: agenesia de ambos cubitos, todos los hallazgos clínicos y laboratoriales compatibles con Síndrome de Cornelia de Lange. No se realizó ecocardiograma ni estudios genéticos, el diagnóstico de este síndrome fue clínico. A los 19 meses fue reevaluada y se encontró: peso 3,600 g, perímetro cefálico 34.5 cm y talla 55 cm, evidente retraso del crecimiento, mental y psicomotor. Conclusión: los pacientes con este síndrome deben ser diagnosticados fundamentalmente por clínica, luego realizar estudios imagenológicos para descartar otras anomalías. Además, el tratamiento debe ser integral...(AU)


Assuntos
Humanos , Feminino , Lactente , Anormalidades Congênitas/genética , Síndrome de Cornélia de Lange/diagnóstico , Hirsutismo/genética , Hidrocefalia/complicações
11.
Am J Med Genet A ; 170(8): 1989-2001, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27196381

RESUMO

Barber-Say syndrome (BSS) and Ablepharon-Macrostomia syndrome (AMS) are congenital malformation syndromes caused by heterozygous mutations in TWIST2. Here we provide a critical review of all patients published with these syndromes. We excluded several earlier reports due to misdiagnosis or insufficient data for reliable confirmation of the diagnosis. There remain 16 reliably diagnosed individuals with BSS and 16 with AMS. Major facial characteristics present in both entities, albeit often in differing frequencies, are excessive facial creases, hypertelorism, underdevelopment of the anterior part of the eyelids (anterior lamella), ectropion, broad nasal ridge and tip, thick and flaring alae nasi, protruding maxilla, wide mouth, thin upper vermillion, and attached ear lobes. In BSS a remarkable extension of the columella on the philtrum can be seen, and in both the medial parts of the cheeks bulge towards the corners of the mouth (cheek pads). Scalp hair is sparse in AMS only, but sparse eyebrows and eyelashes occur in both entities, and general hypertrichosis occurs in BSS. We compare these characteristics with those in Setleis syndrome which can also be caused by TWIST2 mutations. The resemblance between the three syndromes is considerable, and likely differences seem larger than they actually are due to insufficiently complete evaluation for all characteristics of the three entities in the past. It is likely that with time it can be concluded that BSS. AMS and Setleis syndrome form a continuum. © 2016 Wiley Periodicals, Inc.


Assuntos
Anormalidades Múltiplas/diagnóstico , Anormalidades do Olho/diagnóstico , Doenças Palpebrais/diagnóstico , Hirsutismo/diagnóstico , Hipertelorismo/diagnóstico , Hipertricose/diagnóstico , Macrostomia/diagnóstico , Fenótipo , Anormalidades da Pele/diagnóstico , Anormalidades Múltiplas/genética , Anormalidades do Olho/genética , Doenças Palpebrais/genética , Fácies , Estudos de Associação Genética , Genótipo , Hirsutismo/genética , Humanos , Hipertelorismo/genética , Hipertricose/genética , Macrostomia/genética , Mutação , Anormalidades da Pele/genética , Proteína 2 Relacionada a Twist/genética
12.
Eur J Endocrinol ; 173(4): 447-54, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26194504

RESUMO

OBJECTIVE: Hirsutism results from hyperandrogenemia and/or exaggerated androgen responsiveness. Among various causes of hirsutism, some patients do not exhibit androgen excess which is called idiopathic hirsutism (IH). The pathogenesis of IH could not so far be clearly established. DESIGN: To investigate the mRNA expression of aromatase enzyme and the other enzymes having functional roles in the steroidogenic pathway, in freshly obtained skin tissue from subumbilical skin and the arm of the patients with IH and healthy women. METHODS: Twenty-one women with IH and 15 healthy women were included in the study. We aimed to determine mRNA expressions of genes associated with local androgen synthesis and metabolism (CYP11A1, STS, CYP19A1, SRD5A1, SRD5A2, HSD3B1, AR, COMT, ESR1, ESR2, HSD3B2, CYP17A1, SULT2A1, SULT1E1, HSD17B2, IL6, TGFB1, TNFA) from skin biopsy and blood samples of patients with IH and the data compared with healthy subjects. RESULTS: Patients with IH exhibit significantly lower interleukin 6 (IL6) mRNA expression and higher steroid sulphatase (STS) and hydroxysteroid (17beta) dehydrogenase 2 (HSD17B2), gene mRNA expression, respectively, in the subumbilical region skin biopsies. Similarly, patients with IH exhibit significantly lower IL6 mRNA expression and higher STS and HSD17B2 gene mRNA expression, respectively, in the arm skin compared to healthy women's subumbilical region. CONCLUSIONS: In both arm and subumbilical skin biopsy of patients with IH, we observed an up-regulation of HSD17B2 and STS, decreased IL6 mRNA expression, probably determining an increase in the local amount of active androgens, which could then be used as substrate for other androgen metabolic routes.


Assuntos
Androgênios/biossíntese , Hirsutismo/genética , RNA Mensageiro/metabolismo , Pele/metabolismo , Abdome , Adolescente , Adulto , Androgênios/metabolismo , Braço , Estudos de Casos e Controles , Estradiol Desidrogenases/genética , Feminino , Hirsutismo/enzimologia , Humanos , Interleucina-6/genética , RNA Mensageiro/sangue , Pele/enzimologia , Esteril-Sulfatase/genética , Adulto Jovem
13.
Diabet Med ; 32(10): e24-8, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25644898

RESUMO

BACKGROUND: Severe, early-onset insulin resistance in the absence of obesity, hepatic steatosis and dyslipidaemia is frequently attributable to a genetic defect affecting the insulin receptor. We describe a patient with severe insulin resistance in whom insulin receptor mutation analysis was mistakenly recorded as normal. Western blot analysis of skeletal muscle showed reduced insulin receptor protein and led to re-evaluation of the insulin receptor and the discovery of a novel mutation. CASE REPORT: A Niuean women, first evaluated at age 6 years for severe acanthosis nigricans, hirsutism, poor growth and cognitive impairment, had extremely elevated fasting insulin levels of 10740 IU/l (fasting reference range 4-24 IU/l) and a normal glucose concentration (4.9 mmol/l). Diabetes was diagnosed at age 9 years and metformin treatment introduced. By age 14 years, she developed refractory hyperglycaemia despite metformin, rosiglitazone and 240 IU insulin daily. Insulin receptor genetic analysis was documented as normal. At age 23 years, with a blood glucose concentration of 37 mmol/l and an HbA1c concentration of 116 mmol/mol, U500 insulin 2000 IU/day was required for glycaemic control. She developed severe proliferative diabetic retinopathy with neovascular glaucoma leading to blindness. There was no renal dysfunction, dyslipidaemia or hepatic steatosis. A muscle biopsy was performed to evaluate the insulin signalling pathway and showed reduced insulin receptor protein. Sequencing of the insulin receptor showed a homozygous p.Val1010Leu missense mutation. CONCLUSION: This patient illustrates the use of muscle biopsy in the evaluation of a patient with unexplained severe insulin resistance. This approach may usefully be applied to other cases of severe insulin resistance, where genetic testing for known mutations in the insulin signalling pathway has been negative.


Assuntos
Antígenos CD/genética , Resistência à Insulina/genética , Músculos/patologia , Mutação de Sentido Incorreto , Receptor de Insulina/genética , Acantose Nigricans/complicações , Acantose Nigricans/genética , Substituição de Aminoácidos , Biópsia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/genética , Feminino , Hirsutismo/complicações , Hirsutismo/genética , Humanos , Hiperglicemia/genética , Nova Zelândia/etnologia , Índice de Gravidade de Doença , Adulto Jovem
14.
Horm Metab Res ; 47(7): 497-503, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25365508

RESUMO

Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome characterized by fetal macrosomia, macroglossia, and abdominal wall defects. BWS patients are at risk to develop Wilms tumor, neuroblastoma, hepatoblastoma, and adrenal tumors. A young woman with BWS features, but with inconclusive genetic evidence for the disease, came to clinical observation for signs of virilization at the age of 16 years. An adrenocortical tumor was diagnosed and surgically resected. The tumor underwent 2 local relapses that were also surgically treated. The patient was also operated to remove a breast fibroadenoma. SNP arrays were used to analyze chromosome abnormalities in normal and tumor samples from the patient and her parents. The patient presented genome-wide mosaic paternal uniparental disomy (patUPD) both in the adrenocortical and the breast tumors, with different degrees of loss of heterozygosity (LOH). The more recent relapses of the adrenocortical tumor showed a loss of part of chromosome 17p that was absent in the first tumor. Analysis of a skin biopsy sample also showed mosaic patUPD with partial LOH, while no LOH was detected in leukocyte DNA. This case shows that virilizing adrenocortical tumors may be a clinical feature of patients with BWS. The SNP array technology is useful to diagnose genome-wide patUPD mosaicism in BWS patients with an inconclusive molecular diagnosis and underlines the tumorigenic potential of the absence of the maternal genome combined with an excess of the paternal genome.


Assuntos
Neoplasias do Córtex Suprarrenal/genética , Síndrome de Beckwith-Wiedemann/genética , Dissomia Uniparental , Virilismo/genética , Adolescente , Feminino , Hirsutismo/genética , Humanos , Polimorfismo de Nucleotídeo Único , Adulto Jovem
15.
Lik Sprava ; (3-4): 128-31, 2015.
Artigo em Russo | MEDLINE | ID: mdl-26827453

RESUMO

Risk factors related to secondary oligomenorrhea (SOM) are the presence of chronic extragenital pathology, abrupt changes in body mass during a short period of time, a burdened perinatal history at the onset of SOM after a year of regular menstruations. Adolescent girls with SOM differ from their healthy peers by a frequent occurrence of hirsutism, obesity and body mass deficit, uterine hypoplasia.


Assuntos
Hirsutismo/patologia , Obesidade/patologia , Oligomenorreia/patologia , Síndrome do Ovário Policístico/patologia , Adolescente , Índice de Massa Corporal , Feminino , Hereditariedade , Hirsutismo/diagnóstico , Hirsutismo/genética , Humanos , Menstruação/fisiologia , Obesidade/diagnóstico , Obesidade/genética , Oligomenorreia/diagnóstico , Oligomenorreia/genética , Síndrome do Ovário Policístico/diagnóstico , Síndrome do Ovário Policístico/genética , Puberdade/fisiologia , Fatores de Risco
16.
Gene ; 537(2): 279-84, 2014 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-24378232

RESUMO

Cornelia de Lange syndrome (CdLS) is a developmental disorder characterized by limb reduction defects, characteristic facial features and impaired cognitive development. Mutations in the NIPBL gene predominate; however, mutations in other cohesin complex genes have also been implicated, particularly in atypical and mild CdLS cases. Missense mutations and whole gene deletions in RAD21 have been identified in children with growth retardation, minor skeletal anomalies and facial features that overlap findings in individuals with CdLS. We report the first intragenic deletion and frameshift mutations identified in RAD21 in two patients presenting with atypical CdLS. One patient had an in-frame deletion of exon 13, while the second patient had a c.592_593dup frameshift mutation. The first patient presented with developmental delay, hypospadias, inguinal hernia and dysmorphic features while, the second patient presented with developmental delay, characteristic facial features, hirsutism, and hand and feet anomalies, with the first patient being milder than the second. The in-frame deletion mutation was found to be inherited from the mother who had a history of melanoma and other unspecified medical problems. This study expands the spectrum of RAD21 mutations and emphasizes the clinical utility of performing RAD21 mutation analysis in patients presenting with atypical forms of CdLS. Moreover, the variability of clinical presentation within families and low penetrance of mutations as well as the significance of performing molecular genetic testing in mildly affected patients are discussed.


Assuntos
Síndrome de Cornélia de Lange/etiologia , Mutação , Proteínas Nucleares/genética , Fosfoproteínas/genética , Adulto , Proteínas de Ciclo Celular , Pré-Escolar , Proteínas de Ligação a DNA , Síndrome de Cornélia de Lange/genética , Deficiências do Desenvolvimento/genética , Éxons , Feminino , Mutação da Fase de Leitura , Hirsutismo/genética , Humanos , Masculino , Linhagem
17.
West Indian Med J ; 62(1): 81-3, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24171333

RESUMO

Tel Hashomer camptodactyly syndrome (THCS) is a rare autosomal recessive camptodactyly with muscular involvement. The manifestations of THCS other than camptodactyly are clubbed feet, thenar and hypothenar hypoplasia, abnormal palmar creases and dermatoglyphic ridges, spina bifida and mitral valve prolapse. The syndrome was first described by Goodman et al in 1972 and thereafter two further cases with similar phenotype were seen. Herein, we present another case report and review of the literature of other syndromes associated with camptodactyly and mitral valve prolapse. Further cases with this syndrome need to be reported for mapping of the candidate loci. This will help in planning management and genetic counselling.


Assuntos
Deformidades Congênitas da Mão , Comunicação Interatrial , Hirsutismo , Doenças Musculares , Procedimentos Ortopédicos/métodos , Modalidades de Fisioterapia , Adulto , Pé Torto Equinovaro/fisiopatologia , Creatina Quinase/sangue , Dermatoglifia , Diagnóstico Diferencial , Eletromiografia/métodos , Mãos/diagnóstico por imagem , Deformidades Congênitas da Mão/diagnóstico , Deformidades Congênitas da Mão/genética , Deformidades Congênitas da Mão/fisiopatologia , Deformidades Congênitas da Mão/terapia , Comunicação Interatrial/diagnóstico , Comunicação Interatrial/genética , Comunicação Interatrial/fisiopatologia , Comunicação Interatrial/terapia , Hirsutismo/diagnóstico , Hirsutismo/genética , Hirsutismo/fisiopatologia , Hirsutismo/terapia , Humanos , Masculino , Insuficiência da Valva Mitral/diagnóstico por imagem , Prolapso da Valva Mitral/diagnóstico por imagem , Doenças Musculares/diagnóstico , Doenças Musculares/genética , Doenças Musculares/fisiopatologia , Doenças Musculares/terapia , Condução Nervosa , Linhagem , Radiografia , Resultado do Tratamento , Ultrassonografia
18.
J Clin Endocrinol Metab ; 98(10): E1620-5, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23940125

RESUMO

CONTEXT: Steroid 11ß-hydroxylase (CYP11B1) deficiency (11OHD) is the second most common form of congenital adrenal hyperplasia. Milder nonclassic forms are rare and at risk to be missed. OBJECTIVE: The objective of the study was to demonstrate the challenges in diagnosing nonclassic 11OHD. PATIENTS AND METHODS: Patient 1, a 10-year-old boy, presented with high-normal blood pressure and previously unexplained exaggerated adrenarche from age 4 years. Previous tests at the age of 8 years showed normal 17-hydroxyprogesterone concentrations with increased androgens. Patient 2, a 14-year-old female, presented with facial hirsutism, primary amenorrhea, and high-normal blood pressure. Novel CYP11B1 mutations were functionally analyzed in transiently transfected COS7 cells measuring the conversion of 11-deoxycortisol to cortisol by liquid chromatography-tandem mass spectrometry. RESULTS: Biochemical findings including urinary steroid metabolite analysis by gas chromatography-mass spectrometry were suggestive of 11OHD in all patients. CYP11B1 mutation analysis revealed compound heterozygosity in patient 1 (g.235T>A, p.F79I/g.2608C>T, p.R138C) and a homozygous mutation in patient 2 and two siblings (g.2623C>T, p.R143W). Functional in vitro analysis demonstrated partially impaired CYP11B1 activity compared with wild-type (p.F79I: 8.8% ± 0.8% (SEM); p.R138C: 9.8% ± 0.8%; p.R143W: 10.6% ± 1.2%). CONCLUSION: In addition to nonclassic 21-hydroxylase deficiency and steroid-secreting tumors, nonclassic 11OHD should be considered as an important differential diagnosis in patients with unexplained hyperandrogenism without 46,XX disorder of sex development. Nonclassic 11OHD is likely to be missed when relying on measuring standard steroid hormone panels. This diagnosis needs to be established early in life to avoid long-term health problems such as short stature, hyperandrogenism-related metabolic complications, potentially severe arterial hypertension, and cardiovascular consequences.


Assuntos
Hiperplasia Suprarrenal Congênita/diagnóstico , Adrenarca/genética , Hirsutismo/diagnóstico , Esteroide 11-beta-Hidroxilase/genética , Adolescente , Hiperplasia Suprarrenal Congênita/complicações , Hiperplasia Suprarrenal Congênita/genética , Adrenarca/metabolismo , Criança , Feminino , Hirsutismo/complicações , Hirsutismo/genética , Humanos , Masculino
19.
Fertil Steril ; 100(1): 214-8, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23557763

RESUMO

OBJECTIVE: To determine whether manifestations of polycystic ovary syndrome (PCOS), particularly androgen excess, differ between Caucasian and Asian women in the San Francisco Bay Area. DESIGN: Cross-sectional study. SETTING: Multidisciplinary PCOS clinic at a tertiary academic center. PATIENT(S): 121 Caucasian and 28 Asian women, aged 18-44, examined between 2006 and 2011 with PCOS verified by a reproductive endocrinologist and dermatologist according to the Rotterdam criteria. INTERVENTION(S): Transvaginal ultrasounds, comprehensive dermatologic exams, and serum testing. MAIN OUTCOME MEASURE(S): Hirsutism defined as a modified Ferriman-Gallwey (mFG) score ≥ 8, acne, androgenic alopecia, and biochemical hyperandrogenism. RESULT(S): Caucasian and Asian women had a similar prevalence of all measures of androgen excess. Both groups had similar total mFG scores and site-specific mFG scores, except Asian women had a lower site-specific mFG score for the chest. Although Asian women were more likely to use laser hair removal, the results were unchanged when the women with a history of laser hair removal were excluded. CONCLUSION(S): Caucasian and Asian women with PCOS living in the same geographic region had a similar prevalence of hirsutism as well as other markers for androgen excess. Further studies are necessary to evaluate the need for ethnic-specific mFG scores in women with PCOS.


Assuntos
Povo Asiático/genética , Fenótipo , Síndrome do Ovário Policístico/diagnóstico , Síndrome do Ovário Policístico/genética , População Branca/genética , Adolescente , Adulto , Povo Asiático/etnologia , Estudos Transversais , Feminino , Hirsutismo/diagnóstico , Hirsutismo/etnologia , Hirsutismo/genética , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/etnologia , Hiperandrogenismo/genética , Síndrome do Ovário Policístico/etnologia , População Branca/etnologia , Adulto Jovem
20.
Gynecol Obstet Invest ; 74(2): 136-42, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22889864

RESUMO

AIMS: To assess whether a single nucleotide polymorphism (SNP50) of the aromatase gene (CYP19) is associated with polycystic ovary syndrome (PCOS) phenotypes and to investigate the influence of this polymorphism on the response of PCOS to treatment with oral contraceptive pills (OCP). METHODS: 162 hirsute women were stratified into a classic PCOS group (hyperandrogenism, ovulatory dysfunction, c-PCOS) and an ovulatory PCOS group (hyperandrogenism, ovulatory cycles, polycystic ovaries, ov-PCOS). 51 women completed a 6-month OCP trial (20 µg ethinyl estradiol + 75 µg gestodene, 21/28 days per cycle, plus 100 mg spironolactone in 32 women with moderate to severe hirsutism). We considered the presence of the polymorphic allele A (AG+AA) in comparison to the absence of the polymorphism (GG) to express results and to perform the comparisons regarding clinical variables. RESULTS: Mean age was 23.3 ± 6.9 years. Hirsutism score was similar in c-PCOS and ov-PCOS (15 (11-20) vs. 13 (11-20)). The differences in hormone and metabolic variables between phenotypes were independent of the presence of allele A. In the OCP trial subsample, no differences were observed between genotypes after 6 months' treatment. CONCLUSION: The differences between c-PCOS and ov-PCOS cannot be explained by the genetic variation at SNP50 in the CYP19 gene.


Assuntos
Aromatase/genética , Anticoncepcionais Orais/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/genética , Polimorfismo de Nucleotídeo Único/genética , Adulto , Androgênios/sangue , Anovulação/tratamento farmacológico , Anovulação/etiologia , Anovulação/genética , Pressão Sanguínea/efeitos dos fármacos , Índice de Massa Corporal , Etinilestradiol/administração & dosagem , Feminino , Frequência do Gene , Genótipo , Hirsutismo/sangue , Hirsutismo/tratamento farmacológico , Hirsutismo/genética , Humanos , Hiperandrogenismo/tratamento farmacológico , Hiperandrogenismo/etiologia , Hiperandrogenismo/genética , Norpregnenos/administração & dosagem , Fenótipo , Síndrome do Ovário Policístico/complicações , Espironolactona/administração & dosagem , Adulto Jovem
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