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BACKGROUND: Diabetes mellitus is the most common metabolic alteration in gestation. Monogenic diabetes or Maturity-Onset Diabetes of the Young (MODY) is a subtype caused by a primary defect in insulin secretion determined by autosomal dominant inheritance. OBJECTIVES: This study aimed to analyze molecular changes of the Glucokinase gene (GCK) in pregnant women with hyperglycemia during gestation and in their neonates. Case Study and Methods: We collected 201 blood samples, 128 from pregnant patients diagnosed with hyperglycemia and 73 from umbilical cord blood from neonates of the respective patients. DNA extraction and polymerase chain reaction (PCR) were performed to identify molecular changes in the GCK gene. RESULTS: In a total of 201 samples (128 from mothers and 73 from neonates), we found changes in 21 (10.6%), among which 12 were maternal samples (6.0%) and 9 were neonatal samples (4.5%). DNA sequencing identified two polymorphisms and one deleterious MODY GCK-diagnostic mutation. CONCLUSION: The prevalence of molecular changes in the Glucokinase gene (GCK) and the deleterious MODY GCK-diagnostic mutation were 9.3% and 0.7%, respectively, in women with hyperglycemia during gestation and 12.5% and 1.3%, respectively, in their neonates. The deleterious MODY GCK mutation identified is associated with a reduction in GCK activity and hyperglycemia. In the other molecular changes identified, it was impossible to exclude phenotypic change despite not having clinical significance. Therefore, these changes may interfere with the management and clinical outcome of the patients.
Assuntos
Diabetes Mellitus Tipo 2 , Hiperglicemia , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/genética , Feminino , Glucoquinase/genética , Humanos , Hiperglicemia/diagnóstico , Hiperglicemia/genética , Recém-Nascido , Mutação , Gravidez , GestantesRESUMO
Hearing loss (HL) is the most frequent sensory disorder, affecting about 1-3 per 1000 live births, with more than half of the cases attributable to genetic causes. Despite the fact that many HL causative genes have already been identified, current genetic tests fail to provide a diagnosis for about 40% of the patients, suggesting that other causes still need to be discovered. Here, we describe a four-generation Italian family affected by autosomal dominant non-syndromic hearing loss (ADNSHL), in which exome sequencing revealed a likely pathogenic variant in NCOA3 (NM_181659.3, c.2909G>C, p.(Gly970Ala)), a gene recently described as a novel candidate for ADNSHL in a Brazilian family. A comparison between the two families highlighted a series of similarities: both the identified variants are missense, localized in exon 15 of the NCOA3 gene and lead to a similar clinical phenotype, with non-syndromic, sensorineural, bilateral, moderate to profound hearing loss, with a variable age of onset. Our findings (i.e., the identification of the second family reported globally with HL caused by a variant in NCOA3) further support the involvement of NCOA3 in the etiopathogenesis of ADNSHL, which should, thus, be considered as a new gene for autosomal dominant non-syndromic hearing loss.
Assuntos
Predisposição Genética para Doença , Perda Auditiva , Mutação , Coativador 3 de Receptor Nuclear , Feminino , Humanos , Masculino , Brasil , Genes Dominantes , Predisposição Genética para Doença/genética , Genótipo , Perda Auditiva/genética , Perda Auditiva Neurossensorial/genética , Sequenciamento de Nucleotídeos em Larga Escala , Itália , Coativador 3 de Receptor Nuclear/genética , Linhagem , FenótipoRESUMO
Abstract Introduction: Misophonia is a recently described, poorly understood and neglected condition. It is characterized by strong negative reactions of hatred, anger or fear when subjects have to face some selective and low level repetitive sounds. The most common ones that trigger such aversive reactions are those elicited by the mouth (chewing gum or food, popping lips) or the nose (breathing, sniffing, and blowing) or by the fingers (typing, kneading paper, clicking pen, drumming on the table). Previous articles have cited that such individuals usually know at least one close relative with similar symptoms, suggesting a possible hereditary component. Objective: We found and described a family with 15 members having misophonia, detailing their common characteristics and the pattern of sounds that trigger such strong discomfort. Methods: All 15 members agreed to give us their epidemiological data, and 12 agreed to answer a specific questionnaire which investigated the symptoms, specific trigger sounds, main feelings evoked and attitudes adopted by each participant. Results: The 15 members belong to three generations of the family. Their age ranged from 9 to 73 years (mean 38.3 years; median 41 years) and 10 were females. Analysis of the 12 questionnaires showed that 10 subjects (83.3%) developed the first symptoms during childhood or adolescence. The mean annoyance score on the Visual Analog Scale from 0 to 10 was 7.3 (median 7.5). Individuals reported hatred/anger, irritability and anxiety in response to sounds, and faced the situation asking to stop the sound, leaving/avoiding the place and even fighting. The self-reported associated symptoms were anxiety (91.3%), tinnitus (50%), obsessive-compulsive disorder (41.6%), depression (33.3%), and hypersensitivity to sounds (25%). Conclusion: The high incidence of misophonia in this particular familial distribution suggests that it might be more common than expected and raises the possibility of having a hereditary etiology.
Resumo Introdução: A misofonia é uma condição recentemente descrita, mal compreendida e negligenciada. É caracterizada por fortes reações negativas de ódio, raiva ou medo quando os indivíduos precisam enfrentar alguns sons repetitivos seletivos e de baixa intensidade. Os mais comuns que desencadeiam tais reações aversivas são aqueles provocados pela boca (mascar goma ou mastigar comida, estalar os lábios) ou nariz (respirando, cheirando e soprando) ou pelos dedos (digitando, amassando papel, clicando a caneta, tamborilando na mesa). Artigos anteriores citam que esses indivíduos geralmente conhecem pelo menos um parente próximo com sintomas semelhantes, sugerindo um possível componente hereditário. Objetivo: Encontramos e descrevemos uma família com 15 membros com misofonia, detalhando suas características comuns e o padrão de sons que desencadeiam um desconforto tão forte. Método: Todos os 15 membros concordaram em nos fornecer seus dados epidemiológicos e 12 concordaram em responder a um questionário específico que investigou os sintomas, sons de gatilho específicos, principais sentimentos evocados e atitudes adotadas por cada participante. Resultados: Os 15 membros pertencem a três gerações da família. A idade variou de 9 a 73 anos (média de 38,3 anos, mediana de 41 anos) e 10 eram mulheres. A análise dos 12 questionários mostrou que 10 indivíduos (83,3%) desenvolveram os primeiros sintomas durante a infância ou a adolescência. A média do escore de irritação na Escala Visual Analógica de 0 a 10 foi de 7,3 (mediana 7,5). Os indivíduos relataram sentimentos de ódio/raiva, irritabilidade e ansiedade em resposta a sons, e enfrentaram a situação pedindo para interromper o som, deixando/evitando o lugar e até mesmo discutindo. Os sintomas associados auto-relatados foram ansiedade (91,3%), zumbido (50%), transtorno obsessivo-compulsivo (41,6%), depressão (33,3%) e hipersensibilidade aos sons (25%). Conclusão: A alta incidência de misofonia nessa distribuição familiar em particular sugere que possa ser mais comum do que o esperado e suscita a possibilidade de haver uma etiologia hereditária.
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Adulto Jovem , Transtornos de Ansiedade/genética , Transtornos de Ansiedade/psicologia , Emoções , Transtornos da Audição/genética , Transtornos da Audição/psicologia , Ira , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Qualidade de Vida , Som , Síndrome , Família , Inquéritos e Questionários , Depressão/diagnóstico , Depressão/genética , Depressão/psicologia , Depressão/epidemiologia , Transtornos da Audição/diagnóstico , Transtornos da Audição/epidemiologia , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/genética , Transtorno Obsessivo-Compulsivo/psicologia , Transtorno Obsessivo-Compulsivo/epidemiologiaRESUMO
INTRODUCTION: Misophonia is a recently described, poorly understood and neglected condition. It is characterized by strong negative reactions of hatred, anger or fear when subjects have to face some selective and low level repetitive sounds. The most common ones that trigger such aversive reactions are those elicited by the mouth (chewing gum or food, popping lips) or the nose (breathing, sniffing, and blowing) or by the fingers (typing, kneading paper, clicking pen, drumming on the table). Previous articles have cited that such individuals usually know at least one close relative with similar symptoms, suggesting a possible hereditary component. OBJECTIVE: We found and described a family with 15 members having misophonia, detailing their common characteristics and the pattern of sounds that trigger such strong discomfort. METHODS: All 15 members agreed to give us their epidemiological data, and 12 agreed to answer a specific questionnaire which investigated the symptoms, specific trigger sounds, main feelings evoked and attitudes adopted by each participant. RESULTS: The 15 members belong to three generations of the family. Their age ranged from 9 to 73 years (mean 38.3 years; median 41 years) and 10 were females. Analysis of the 12 questionnaires showed that 10 subjects (83.3%) developed the first symptoms during childhood or adolescence. The mean annoyance score on the Visual Analog Scale from 0 to 10 was 7.3 (median 7.5). Individuals reported hatred/anger, irritability and anxiety in response to sounds, and faced the situation asking to stop the sound, leaving/avoiding the place and even fighting. The self-reported associated symptoms were anxiety (91.3%), tinnitus (50%), obsessive-compulsive disorder (41.6%), depression (33.3%), and hypersensitivity to sounds (25%). CONCLUSION: The high incidence of misophonia in this particular familial distribution suggests that it might be more common than expected and raises the possibility of having a hereditary etiology.
Assuntos
Ira , Transtornos de Ansiedade/genética , Transtornos de Ansiedade/psicologia , Emoções , Transtornos da Audição/genética , Transtornos da Audição/psicologia , Transtorno Obsessivo-Compulsivo/genética , Transtorno Obsessivo-Compulsivo/psicologia , Adolescente , Adulto , Idoso , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Criança , Depressão/diagnóstico , Depressão/epidemiologia , Depressão/genética , Depressão/psicologia , Família , Feminino , Transtornos da Audição/diagnóstico , Transtornos da Audição/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/epidemiologia , Qualidade de Vida , Som , Inquéritos e Questionários , Síndrome , Adulto JovemRESUMO
La displasia ectodérmica hipohidrótica (DEH) es una entidad infrecuente caracterizada por deficiencia en el desarrollo de estructuras derivadas del ectodermo y es causada por mutaciones en los genes EDA, EDAR o EDARADD, que pueden exhibir hallazgos clínicos similares, debido a una vía de señalización común. Las mutaciones en el gen EDA causan la DEH ligada al X, que es la forma más frecuente. Por su parte, las mutaciones en los genes EDAR y EDARADD causan la DEH con patrón de herencia autosómica dominante y recesiva. Los hallazgos clínicos más resaltantes son hipodoncia, hipotricosis e hipohidrosis, que pueden llevar a episodios de hipertermia. Se presentan los hallazgos clínicos en un niño con DEH con patrón de herencia autosómica dominante, cuyo análisis molecular demostró mutación heterocigótica c.1072C>T (p.Arg358X) en el gen EDAR, y se discuten los diferentes aspectos clínicos encontrados en esta mutación en los casos descritos en la literatura.
Hypohidrotic ectodermal dysplasia (HED) is a rare disease characterized by deficiency in development of structure derived from the ectoderm and is caused by mutations in the genes EDA, EDAR, or EDARADD. Phenotypes caused by mutations in these three may exhibit similar clinical features, explained by a common signaling pathway. Mutations in EDA gene cause X linked HED, which is the most common form. Mutations in EDAR and EDARADD genes cause autosomal dominant and recessive form of HED. The most striking clinical findings in HED are hypodontia, hypotrichosis and hypohidrosis that can lead to episodes of hyperthermia. We report on clinical findings in a child with HED with autosomal dominant inheritance pattern with a heterozygous mutation c.1072C>T (p.Arg358X) in the EDAR gene. A review of the literature with regard to other cases presenting the same mutation has been carried out and discussed.
Assuntos
Humanos , Masculino , Pré-Escolar , Displasia Ectodérmica Anidrótica Tipo 1/diagnóstico , Displasia Ectodérmica Anidrótica Tipo 1/genética , Linhagem , Receptor Edar , MutaçãoRESUMO
Hypohidrotic ectodermal dysplasia (HED) is a rare disease characterized by deficiency in development of structure derived from the ectoderm and is caused by mutations in the genes EDA, EDAR, or EDARADD. Phenotypes caused by mutations in these three may exhibit similar clinical features, explained by a common signaling pathway. Mutations in EDA gene cause X linked HED, which is the most common form. Mutations in EDAR and EDARADD genes cause autosomal dominant and recessive form of HED. The most striking clinical findings in HED are hypodontia, hypotrichosis and hypohidrosis that can lead to episodes of hyperthermia. We report on clinical findings in a child with HED with autosomal dominant inheritance pattern with a heterozygous mutation c.1072C>T (p.Arg358X) in the EDAR gene. A review of the literature with regard to other cases presenting the same mutation has been carried out and discussed.
La displasia ectodérmica hipohidrótica (DEH) es una entidad infrecuente caracterizada por deficiencia en el desarrollo de estructuras derivadas del ectodermo y es causada por mutaciones en los genes EDA, EDAR o EDARADD, que pueden exhibir hallazgos clínicos similares, debido a una vía de señalización común. Las mutaciones en el gen EDA causan la DEH ligada al X, que es la forma más frecuente. Por su parte, las mutaciones en los genes EDAR y EDARADD causan la DEH con patrón de herencia autosómica dominante y recesiva. Los hallazgos clínicos más resaltantes son hipodoncia, hipotricosis e hipohidrosis, que pueden llevar a episodios de hipertermia. Se presentan los hallazgos clínicos en un niño con DEH con patrón de herencia autosómica dominante, cuyo análisis molecular demostró mutación heterocigótica c.1072C>T(p.Arg358X) en el gen EDAR, y se discuten los diferentes aspectos clínicos encontrados en esta mutación en los casos descritos en la literatura.
Assuntos
Displasia Ectodérmica Anidrótica Tipo 1/diagnóstico , Displasia Ectodérmica Anidrótica Tipo 1/genética , Pré-Escolar , Receptor Edar/genética , Humanos , Masculino , Mutação , LinhagemRESUMO
Osteogenesis imperfecta type V (OI-V) has a wide clinical variability, with distinct clinical/radiological features, such as calcification of the interosseous membrane (CIM) between the radius-ulna and/or tibia-fibula, hyperplastic callus (HPC) formation, dislocation of the radial head (DRH), and absence of dentinogenesis imperfecta (DI). Recently, a single heterozygous mutation (c.-14C>T) in the 5'UTR of the IFITM5 gene was identified to be causative for OI-V. Here, we describe 7 individuals from 5 unrelated families that carry the c.-14C>T IFITM5 mutation. The clinical findings in these cases are: absence of DI in all patients, presence of blue sclera in 2 cases, and 4 patients with DRH. Radiographic findings revealed HPC in 3 cases. All patients presented CIM between the radius and ulna, while 4 patients presented additional CIM between the tibia and fibula. Spinal fractures by vertebral compression were observed in all individuals. The proportion of cases identified with this mutation represents 4% of OI cases at our institution. The clinical identification of OI-V is crucial, as this mutation has an autosomal dominant inheritance with variable expressivity.
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Hidradenitis suppurativa (HS) is a disease characterized by chronic follicular occlusion and secondary inflammation of the apocrine glands. The disease is uncommon but not rare. Further epidemiologic study is required to better determine HS prevalence in various populations. Women are affected three times more often than men, although HS tends to be more severe in men. The typical age of onset is in the second and third decades; HS is rare prior to puberty, and the prevalence is lower in older adults. A number of factors (particularly cigarette smoking) and comorbid conditions (especially obesity) are associated with HS, but causative relationships have not been established.
Assuntos
Hidradenite Supurativa , Adolescente , Adulto , Idade de Início , Idoso , Infecções Bacterianas , Criança , Feminino , Genes Dominantes , Hidradenite Supurativa/epidemiologia , Hidradenite Supurativa/etiologia , Hidradenite Supurativa/fisiopatologia , Hormônios/fisiologia , Humanos , Imunidade Celular , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Prevalência , Fatores de Risco , Distribuição por Sexo , Fumar/efeitos adversos , Adulto JovemRESUMO
Se comunican las características clínicas de una mujer de 68 años de edad y sus dos hijas (36 y 33 años) que presentaban un conjunto de anomalías de probable origen hereditario. Se les efectuaron interconsultas con varias especialidades: medicina interna, genética, cardiología, radiología, angiología, psiquiatría, dermatología, otorrinolaringología, máxilo-facial, oftalmología y neurología. Los hallazgos comunes a las tres pacientes consistieron en tortuosidad de los vasos retinianos, glaucoma crónico de ángulo abierto, braquidactilias y otros dismorfismos en dedos de manos y pies, hallux valgus, telangiectasias en mejillas y tórax superior, orejas en ®asa», hiperostosis frontal, tórax excavado e insuficiencia mitral. El glaucoma neovascular se presentó en un ojo de cada hija. Este complejo padecimiento clínico, con alteraciones en miembros, faciales, cardiovasculares, oculares y en piel con una posible herencia de tipo autosómico dominante por su presencia en dos generaciones sucesivas, no se corresponde con ningún síndrome de los considerados en este informe
Presentation of the clinical characteristics of a 68-year-old woman and her two daughters, aged 36 and 33, who had a number of abnormalities of probable hereditary origin. Interconsultations were conducted with several specialties: internal medicine, genetics, cardiology, radiology, angiology, psychiatry, dermatology, otorhinolaryngology, maxillofacial, ophthalmology and neurology. The findings common to the three patients were retinal arterial tortuosity, chronic open angle glaucoma, brachydactyly and other dysmorphic disorders of fingers and toes, hallux valgus, telangiectasia in cheeks and upper thorax, protruding ears, frontal hyperostosis, pectus excavatum and mitral insufficiency. Both daughters had neovascular glaucoma in one of their eyes. This complex clinical condition, with disorders involving limbs, face, the cardiovascular system, eyes and skin, and a potential autosomal dominant inheritance in view of its presence in two successive generations, does not correspond to any of the syndromes considered in this report