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Biomedical subjects

D Seibert

Publications and source records attributed to D Seibert.

34 records · Page 2Linked to original sources
PubMed1981

Electromyographic abnormalities in Paget disease of the thoracolumbar vertebral column.

This report describes a patient with Paget disease of the lower thoracic and lumbosacral vertebrae who developed slowly progressive paraparesis. The electromyographic findings were abnormal in the thoracolumbar paraspinal muscles and the right medial gastrocnemius muscle. In the presence of a normal myelogram, we concluded that the denervation found by electromyography was due to neural ischemia rather than mechanical compression of neural tissue, as is sometimes the case.

Electromyography↗
PubMed1975

Plasmid-linked ampicillin resistance in haempohilus influenza type b.

Four ampicillin-resistant, beta-lactamase-producing strains of Haempohilus influenzae type b were examined for the presence of plasmid deoxyribonucleic acid (DNA). Three resistant strains contained a 30 x 10-6-dalton (30Mdal) plasmid and one resitant strain contained a 3-Mdal plasmid. The ampicillin-sensitive Haemophilus strains examined did not contain plasmid DNA. Transformation of a sensitive H. influenzae strain to ampicillin resistance with isolated plasmid DNA preparations revealed that the structural gene for beta-lactamase resided on both plasmid species. DNA-DNA hybridization studies showed that the 30-Mdal Haemophilus plasmid contained the ampicillin translocation DNA segment (TnA) found on some R-factors of enteric origin of the H. influenzae plasmids.

Ampicillin↗