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Biomedical subjects

B Roth

Publications and source records attributed to B Roth.

At least 253 records · Page 14Linked to original sources
PubMed1977

[Excretion of D-glucaric-acid in newborns with non-hemolytic hyperbilirubinemia after phenobarbital treatment (author's transl)].

The excretion of D-glucaric-acid during 24 hours in the urine, which is a measure for the activity of microsomal liver enzymes, was determined in 33 newborns. From 22 newborns with non-hemolytic unconjugated hyperbilirubinemia 11 were treated with 7.5 mg phenobarbital per kilogram bodyweight 5 days and afterwards the excretion of D-glucaric-acid was measured. In contrast to the untreated newborns there was a significant decrease of the bilirubin concentration in the serum and a concomitant increase of the D-glucaric acid excretion from 0,052 mumol/day/kg to 0,388 mumol/day/kg (mean values). A negative correlation (r = -0,51) could be calculated between the bilirubin concentration in the serum and the excretion of D-glucaric-acid after treatment with phenobarbital.

Bilirubin↗
PubMed1976

Narcolepsy and hypersomnia: review and classification of 642 personally observed cases.

In this paper the author gives a survey and a classification of 642 cases of narcolepsy and hypersomnia which he himself studied in the course of 26 years. 368 cases were classified as narcolepsy, 274 as hypersomnia. The author further classifies narcolepsies according to their etiology, clinical form and pathophysiological mechanisms of origin. Hypersomnias are divided by the author into the symptomatic and the functional groups. According to the author it is useful to distinguish "short cycle hypersomnia", i.e. those with short duration of sleep attacks (hours) and intervals, from "long cycle hypersomnia", i.e. those with long attacks (days or weeks) and intervals. The author goes on to describe different forms of symptomatic and functional hypersomnias, such as idiopathic hypersomnia, neurotic hypersomnia, the Pickwickian syndrome" and its variants as well as different varieties of periodic long cycle hypersomnias. Finally the author makes a brief mention of the syndrome of insufficiency of wakefulness.

Age Factors↗
PubMed1975

Depresssion in narcolepsy and hypersommia.

The authors studied the occurrence of depression in 100 randomly selected patients with narcolepsy and in 30 patients with hypersomnia. In the isolated form of idiopathic narcolepsy (without signs of cataplexy, sleep paralysis or hypnagogic hallucinations) depression occurred 28.6 per cent of cases. In idiopathic narcolepsy with cataplexy or other symptoms of sleep dissociation, depression was found in 17.2 per cent of cases. In idiopathic hypersomnia the occurrence of depression was 26.1 per cent. In the majority of cases the endogenous form of depression was observed. In the symptomatic form of narcolepsy and hypersomnia the occurence of depression has not been noted in any case. In most cases a parallel clincial course has been observed between the manifestation of depression and narcolepsy or hypersomnia. During a remission of the depressive state the hypersomniac symptoms decreased or disappeared totally. The authors furter discuss the possible pathophysiological mechanisms of the above mentioned symptoms. They are of the opinion that an important role is played by the secretion and metabolism of the cerebral monamines.

Cataplexy↗