Search PubMed⌕ Search

Biomedical subjects

E Schwarz

Publications and source records attributed to E Schwarz.

At least 163 records · Page 9Linked to original sources

[Mediastinal pseudotumor, caused by a carotid-jugular fistula].

The author presents the case of a mediastinal pseudotumour which can be explained by abnormally elongated and dilated large veins close to the heart. The reason for this rare ectasia of the venous system was a cervical fistula which had been existing for several years between the carotid artery at bifurcation level and the jugular vein following a war injury. Arteriography had originally been conducted because of subarachnoidal bleeding.

Aged↗

Changes in EEG, blood levels, mood scales and performance scores during long term treatment with diazepam, phenobarbital or placebo in patients.

1. The patient population consisting of fifteen patients was divided into three groups, namely: diazepam group, phenobarbital group and placebo group. After three weeks the medicated groups were switched to placebo for a week and the placebo group was given phenobarbital. 2. The parameters to be assessed once a week comprised frequency-analyzed EEG recordings, performance in two attention tests and subjectively estimated mood modalities. 3. The EEG analysis suggested that EEG patterns: a) were drug-dependent, with a differential distribution for each drug of the four frequency bands analyzed; b) showed no change during the three-week treatment period; c) changed on cessation of medication or on switch from placebo to active medication; d) were task-dependent and changed in a systematic way with the level of activation (stress, vigilance or relaxation). 4. The results would allow a better understanding of the clinical course, the choice of therapeutic measures and of the underlying mechanisms of action.

Adult↗

Driving ability of depressive patients under antidepressants.

A group of twenty depressive patients was compared during a 3-4 month course of antidepressant therapy (Maprotiline: n = 6, age = 46.1; dibenzepin: n = 4, age = 43.0; lithium: n = 6, age = 44.5; "mixed" (maprotiline, dibenzepin trimeprimine): n = 4, age = 50.2) with a healthy control group (n = 32, age = 38.2) for subjective assessment of their depressive mood and performance as well as objective measurement of variables relating to driving behaviour. The measurements were taken 2-4 weeks after a pre-treatment period (day 1) and after 2-3 months of further therapy (day 2). During therapy, all patients felt "less depressive" and "more capable" in subjective terms. All patient groups made learning progress in the objectively measured variables (psychomotor co-ordination and attentiveness tests). By day 2, the patient groups had almost reached the performance level of the control group, providing they received antidepressant therapy (regardless of the action profile) which was suitable for the basic disorder and the symptoms, and therapy was successful in the opinion of the physician. It may be concluded that depressive patients, assuming suitable antidepressant treatment and good response, are capable of driving while under maintenance therapy.

Adult↗

Restriction endonuclease EcaI from Enterobacter cloacae.

Restriction endonuclease EcaI obtained from Enterobacter cloacae DSM30056 recognizes the group of heptanucleotide palindromes 5'-G[unk]G-T-N-A-C-C-3', and on cleavage (arrow) produces fragments with 5'-terminal pentanucleotide extensions. It is identical in specificity with restriction endonuclease BstEII from Bacillus stearothermophilus ET.

Base Sequence↗

Mutants of adenovirus type 12 after adaptation to growth in tumor cell lines. II. Reproducible acquisition of additional sequences after adaptation to a human cervical cancer line.

Adaptation of adenovirus type 12 to growth in a human cervical cancer line (C4/1) results in the reproducible selection of viral mutants carrying additional DNA sequences at the right-hand end of the genome which range in size from 190 to 400 base pairs. The viral mutants have selective growth advantage in comparison to the non-affected wild type, even after subsequent passages in human KB cells, commonly used for adenovirus propagation. Detailed restriction endonuclease analysis of one of the mutant DNAs shows that the additional sequences are located within the terminal 195 base pairs of the right end of the genome.

Adenoviruses, Human↗

A gene coding for tRNA is located near 5' terminus of 16S rRNA gene in Zea mays chloroplast genome.

A region of 635 base pairs preceding a gene for 16S rRNA in the Zea mays chloroplast genome has been mapped and its sequence has been determined. Screening for structural elements common to tRNAs reveals a gene coding for tRNA(Val) (GU(U) (C)) positioned 303 base pairs proximal to the 5' end of the 16S rRNA gene. Both the tRNA(Val) and the 16S rRNA are coded in the same DNA strand. The tRNA nucleotide sequence predicted from the DNA sequence meets all structural characteristics common to tRNA primary and secondary structures. In a quantitative comparison with primary structures of the 14 known tRNA(Val) species the chloroplast isoaceptor shows much higher homology with that from prokaryotic than that from eukaryotic species. Regions that Escherichia coli RNA polymerase protects from nuclease attack are observed 25 and 100 base pairs upstream of the tRNA(Val) gene and 105 base pairs upstream of the 16S rRNA gene. Within these regions are short sequences that are very similar to those in the -35 region of E. coli rrn and that may therefore represent all or parts of transcription initiation signals of the respective genes.

Journal Article↗

Longitudinal evaluation of a preventive program provided by general dental practitioners to young adult Danes.

In 1976, a preventive program was established for young adults under the general feasibility of public economic support for preventive dentistry was studied longitudinally during the years 1976-80. Out of approximately 140,000 evaluation cards sent out, 42,000 were returned from general dental practitioners concerning 20,000 individuals, 12,000 of whom were reported twice or more. Information was collected on use of preventive service and health status based on Visible Plaque Index (VPI) and Gingival Bleeding Index (GBI). About one-fifth of the study population received the preventive service, consisting of chairside dental education and oral hygiene instruction. Associations between provision of prevention and VPI/GBI scores were found. From first to last dental visit in the evaluation period improvement in VPI and GBI scores was registered, proportionally more in the group that received service. Internal and external validity of the results and policy implications of the study are discussed.

Adult↗