silicon and Adrenal-Hyperplasia--Congenital

silicon has been researched along with Adrenal-Hyperplasia--Congenital* in 2 studies

Trials

1 trial(s) available for silicon and Adrenal-Hyperplasia--Congenital

ArticleYear
Diagnosis of congenital adrenal hyperplasia by rapid determination of 17alpha-hydroxyprogesterone in dried blood spots by gas chromatography/mass spectrometry following microwave-assisted silylation.
    Rapid communications in mass spectrometry : RCM, 2005, Volume: 19, Issue:20

    17alpha-Hydroxyprogesterone (17OHP) is considered to be the biomarker of congential adrenal hyperplasia (CAH). Screening for CAH in newborns by measuring levels of the biomarker of 17OHP has become routine. In the work, a rapid, simple and sensitive technique was developed for the diagnosis of neonatal CAH by the quantitative analysis of 17OHP in neonatal blood spots. The technique was based on microwave-assisted silylation (MAS) followed by gas chromatography/mass spectrometry (GC/MS). In the method, fast derivatization of 17OHP with N,O-bis(trimethylsilyl)trifluoroacetamide was performed by using microwave irradiation, and the trimethylsilyl derivative thus formed was analyzed by GC/MS. The results of the experiment indicate that MAS followed by GC/MS analysis is a rapid, simple and sensitive method for the determination of 17OHP in blood samples. The proposed technique has been shown to have potential as a powerful tool for the rapid diagnosis of neonatal CAH.

    Topics: 17-alpha-Hydroxyprogesterone; Adrenal Hyperplasia, Congenital; Biomarkers; Blood Chemical Analysis; Blood Specimen Collection; Desiccation; Gas Chromatography-Mass Spectrometry; Humans; Infant, Newborn; Microwaves; Reproducibility of Results; Sensitivity and Specificity; Silicon; Specimen Handling

2005

Other Studies

1 other study(ies) available for silicon and Adrenal-Hyperplasia--Congenital

ArticleYear
Steroid spectra, pattern recognition and quantitative analysis.
    Clinica chimica acta; international journal of clinical chemistry, 1971, Volume: 34, Issue:2

    Topics: 17-Ketosteroids; Abortion, Habitual; Adolescent; Adrenal Hyperplasia, Congenital; Adult; Chemistry, Clinical; Chromatography, Gas; Clinical Laboratory Techniques; Drug Stability; Estrogens; Evaluation Studies as Topic; Female; Humans; Hydrogen-Ion Concentration; Hydrolases; Hydrolysis; Male; Methods; Methylation; Polycystic Ovary Syndrome; Pregnancy; Pregnanediol; Silicon; Steroids

1971