[Plasma 17-alpha-hydroxyprogesterone concentration for the diagnosis of congenital adrenal hyperplasia (author's transl)].
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Adolescent↗
Biomedical subjects
D Mardesić
Publications and source records attributed to D Mardesić.
[Homocystinuria: case reports with a note on hyperhomocysteinemia as a risk factor for the early onset of vascular disease].
Two brothers and a sister suffering from homocystinuria caused by cystathionine beta-synthase deficiency and the possibilities of treatment are presented. Possible clinical variability, the necessity for early diagnosis and the importance of hyperhomocysteinemia as a risk factor for early-onset vascular disease are discussed.
Child↗
[Dynamic mutations--a newly detected category of mutations which is the basis for certain neurologic diseases].
This review offers some basic information on the discovery of a new type of mutations being the cause of some significant neurologic diseases: myotonic dystrophy, Huntington's disease, spinocerebellar ataxia type 1, spinobulbar pallido-louysian muscular atrophy, fragile X syndrome and some other, up to a total of ten entities. The basis of the so-called dynamic mutations is an abnormal multiplication of a trinucleotide producing sequences of several hundreds or even thousands of identical copies in the respective gene. The result is designated as expanded or amplified trinucleotide (or triplet) repeat. These sequences are not stable, but increase (or exceptionally decrease) in length during cell multiplication in successive generations. They segregate within families with the affected members, demonstrating a significant correlation between the length of the repeat sequence, the severity of the pathologic phenotype and an inverse correlation with the age at the clinical manifestation of the disease. Thus, at least, a formal explanation for the anticipation phenomenon of the age at which the disease is manifested within a family is offered. The importance of the discovery of dynamic mutations lies in the possibility for more precise and reliable genetic counselling. The discovery has opened a lot of new questions giving a new impetus for intensive research.
Central Nervous System Diseases↗