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1.
Arch. endocrinol. metab. (Online) ; 63(2): 167-174, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001214

ABSTRACT

ABSTRACT The first description of patients with combined pituitary hormone deficiencies (CPHD) caused by PROP1 mutations was made 20 years ago. Here we updated the clinical and genetic characteristics of patients with PROP1 mutations and summarized the phenotypes of 14 patients with 7 different pathogenic PROP1 mutations followed at the Hospital das Clínicas of the University of Sao Paulo. In addition to deficiencies in GH, TSH, PRL and gonadotropins some patients develop late ACTH deficiency. Therefore, patients with PROP1 mutations require permanent surveillance. On magnetic resonance imaging, the pituitary stalk is normal, and the posterior lobe is in the normal position. The anterior lobe in patients with PROP1 mutations is usually hypoplastic but may be normal or even enlarged. Bi-allelic PROP1 mutations are currently the most frequently recognized genetic cause of CPHD worldwide. PROP1 defects occur more frequently among offspring of consanguineous parents and familial cases, but they also occur in sporadic cases, especially in countries in which the prevalence of PROP1 mutations is relatively high. We classified all reported PROP1 variants described to date according to the American College of Medical Genetics and Genomics and the Association for Molecular Pathology (ACMG-AMP) guidelines: 29 were pathogenic, 2 were likely pathogenic, and 2 were of unknown significance. An expansion of the phenotype of patients with PROP1 mutations was observed since the first description 20 years ago: variable anterior pituitary size, different pathogenic mutations, and late development of ACTH deficiency. PROP1 mutations are the most common cause of autosomal recessive CPHD with a topic posterior pituitary lobe. Arch Endocrinol Metab. 2019;63(2):167-74


Subject(s)
Humans , Male , Female , Homeodomain Proteins/genetics , Mutation/genetics , Phenotype , Septo-Optic Dysplasia/genetics , Hypopituitarism/genetics
2.
Arq. bras. endocrinol. metab ; 58(3): 232-236, abr. 2014. graf
Article in Portuguese | LILACS | ID: lil-709345

ABSTRACT

Objetivo : Nosso objetivo foi comparar duas técnicas de dosagem do 11-desoxicortisol: a técnica de radioimunoensaio iodado, a qual foi validada neste trabalho, e a cromatografia líquida de alta performance seguida por espectrometria de massa em tandem (LC-MS/MS), sendo a última considerada o padrão-ouro para dosagem dos hormônios esteroides. Materiais e métodos : Para a comparação entre os resultados de 11-desoxicortisol, foram selecionadas 88 amostras. Resultados : A sensibilidade analítica do radioimunoensaio foi de 0,30 ng/mL, com linearidade e perfil de precisão inadequado (34% das amostras com CV ≥ 20%). Das 88 amostras selecionadas, apenas 54 apresentaram resultados mensuráveis em ambos os métodos. A comparação desses resultados, por meio da regressão de Deming, resultou em um coeficiente de correlação de 0,610, inclinação de 3,751, intercepção de 0,145, evidenciando a pobre correlação entre os resultados e a superestimação dos resultados pelo RIA. Conclusão : Concluímos que o método de dosagem de 11-desoxicortisol por radioimunoensaio iodado apresentou resultados inadequados nos diversos parâmetros avaliados, inviabilizando sua utilização como método de dosagem do 11-desoxicortisol. Arq Bras Endocrinol Metab. 2014;58(3):232-6 .


Objective : Our aim was to correlate 11-deoxycortisol levels obtained by two currently available techniques for 11-deoxycortisol measurement: radioimmunoassay, and high performance liquid chromatography followed by tandem mass spectrometry (MS/MS). The latter is the gold standard method for steroid hormone measurement. Materials and methods : We selected 88 samples and the results of these two methods were compared by Deming regression. Results : The analytical sensitivity of the RIA was 0.30 ng/mL, with inadequate linearity and inadequate precision profile (34% of the samples had a CV ≥ 20%). From the selected samples, 54 had measurable levels of 11-deoxycortisol in both methods and were used in the comparison. The comparison of RIA with LC-MS/MS showed an overestimation of the results by RIA. The correlation coefficient was 0.610; linear regression slope was 3.751; and the intercept was 0.145, indicating a poor correlation between the two methods. Conclusion : We concluded that 11-deoxycortisol measured by radioimmunoassay, despite a good analytical sensitivity, showed very low specificity, precluding its use as a reliable method for 11-deoxycortisol measurement. Arq Bras Endocrinol Metab. 2014;58(3):232-6 .


Subject(s)
Humans , Adrenal Hyperplasia, Congenital/diagnosis , Cortodoxone/blood , Iodine Radioisotopes , Reagent Kits, Diagnostic/standards , /analysis , Bias , Biomarkers/blood , Chromatography, High Pressure Liquid , Reference Standards , Reproducibility of Results , Radioimmunoassay/methods , Sensitivity and Specificity , Tandem Mass Spectrometry
3.
J. bras. pneumol ; 36(5): 657-661, set.-out. 2010. ilus
Article in Portuguese | LILACS | ID: lil-564208

ABSTRACT

A pneumonia lipoide é uma doença pouco diagnosticada, causada pela aspiração de partículas oleosas para dentro dos pulmões. Os casos relatados têm sido relacionados ao uso de óleo mineral como laxativo, mas outras soluções oleosas também podem causar a doença. Relatamos o caso de uma paciente de 50 anos com queixa de tosse produtiva, sendo diagnosticada inicialmente com hiper-reatividade brônquica e doença do refluxo gastroesofágico (DRGE). A paciente foi submetida a tratamento para DRGE. Devido à persistência da tosse, a paciente foi submetida a TC de tórax, fibrobroncoscopia e biópsia pulmonar a céu aberto, sendo diagnosticada com pneumonia lipoide. A paciente foi questionada quanto ao uso de substâncias oleosas, relatando o uso crônico de óleo de prímula. Com a suspensão do uso da substância e a continuidade do tratamento para DRGE, houve melhora do quadro.


Lipoid pneumonia is an underdiagnosed disease that is caused by the aspiration of lipid particles into the lungs. Although most of the reported cases have been associated with the use of mineral oil as a laxative, other lipid substances can also cause the disease. We report the case of a 50-year-old female patient with a complaint of productive cough who was initially diagnosed with bronchial hyperresponsiveness and gastroesophageal reflux disease (GERD). The patient was treated for GERD. Because the productive cough persisted, the patient underwent chest CT, fiberoptic bronchoscopy, and open lung biopsy. She was diagnosed with lipoid pneumonia. The patient was questioned regarding the use of lipid substances, and she reported the chronic use of evening primrose oil. After the discontinuation of the substance and the maintenance of GERD treatment, her condition improved.


Subject(s)
Female , Humans , Middle Aged , Mineral Oil/adverse effects , Pneumonia, Lipid/etiology , Anti-Infective Agents/therapeutic use , Chronic Disease , Ciprofloxacin/therapeutic use , Constipation/drug therapy , Gastroesophageal Reflux/diagnosis , Gastroesophageal Reflux/drug therapy , Pneumonia, Lipid/drug therapy , Pneumonia, Lipid/pathology , Staphylococcus aureus/isolation & purification
4.
Rev. bras. ecocardiogr. imagem cardiovasc ; 22(4): 51-55, out.-dez. 2009. ilus
Article in Portuguese | LILACS | ID: lil-530911

ABSTRACT

O aneurisma de apêndice atrial esquerdo é uma entidade extremamente rara e diagnosticada, na maioria das vezes, a partir da segunda década de vida, sendo patologia geralmente oligossintomática e diagnóstico de caráter ocasional. Este caso refere-se a um paciente de 21 anos, com quadro de taquicardia supraventricular sustentada sintomática. O diagnóstico foi feito a partir do ecocardiograma transtorácico, após o achado de aumento de área cardíaca em radiografia do tórax. O tratamento cirúrgico é mandadório e o paciente foi submetido à cirurgia para ressecção do apêndice atrial.


Subject(s)
Humans , Male , Adult , Heart Aneurysm/complications , Heart Aneurysm/diagnosis , Atrial Appendage/surgery , Arrhythmia, Sinus/complications , Arrhythmia, Sinus/diagnosis , Echocardiography/methods , Echocardiography
5.
Rev. bras. cir. cardiovasc ; 15(2): 169-72, abr.-jun. 2000. ilus, graf
Article in Portuguese | LILACS | ID: lil-267958

ABSTRACT

É apresentado estudo in vitro de um dispositivo de assistência circulatória totalmente implantável no ventrículo esquerdo, de fluxo axial e de tamanho pequeno (30 cc - 7 cm comprimento). Apesar dessas características foi capaz de gerar fluxos entre 5 - 8 l/min com motor, operando em 8 W, sem causar hemólise em período de até 12 horas. O custo de produção, excetuando-se o sistema de baterias, foi projetado entre 5 - 8 mil dólares, o que o torna viável para utilização clínica rotineira em nosso país.


Subject(s)
Heart-Assist Devices , Heart-Assist Devices/economics , Costs and Cost Analysis , Blood Flow Velocity/physiology
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