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Biomedical subjects

H Frank

Publications and source records attributed to H Frank.

At least 199 records · Page 11Linked to original sources

Morphological, chemical, and antigenic organization of mammalian C-type viruses.

New features in the architecture of mammalian type C viruses, in particular knoblike surface projections and hexagonally arranged subunits on the core shell could be demonstrated by electron microscopy, taking advantage of newly developed preparation techniques. As examples, murine leukemia viruses (MuLVs) and newly isolated porcine and bovine C viruses are presented. The major proteins of a MuLV were isolated and partially characterized in chemical terms and with respect to their serological and other biological activities, such as interfering and hemagglutinating (HA) capacity. Most of the characterized proteins could be localized in particular substructures of the virion either by selective removal or isolation of electron microscopically identifiable constituents. The information obtained allowed the design of a more detailed model of mammalian C viruses. Special attention was devoted to the further characterization of interspecies antigens of mammalian C viruses. Different antigenic determinants were revealed. Their distribution allows further subgrouping of mammalian C viruses.

AKR murine leukemia virus↗

[Acquired epidermolysis bullosa in Crohn's disease].

A case of epidermolysis bullosa acquisita associated with colitis granulomatosa (Crohn's disease) is reported. Although the cutaneous lesions of this unusual disease resemble in their clinical, histological and ultrastructural features to those of the hereditary epidermolysis bullosa dystrophica, the epidermolysis bullosa acquisita has to be regarded as a separate entity among the blistering epidermolysis because of its late manifestation in adults without evidence of hereditary disorders. The deposits of immunoglobulins in the involved skin of the acral areas demonstrated fluorescentmicroscopically are discussed in regard of a possible etiopathogenic relation with the primary irritated intestinal disease.

Adult↗

Lupus pericarditis.

This report documents a case of systemic lupus erythematosus in which the major presenting feature was pericarditis and in which the diagnosis was made after pericardiocentesis by the demonstration of typical LE cells in pericardial fluid stained with Wright's stain. Review of the literature indicates that pericarditis in lupus is more common than is generally suspected, and when it is the initial manifestation it is often misdiagnosed as "benign viral pericarditis".Screening for collagen disease should be a part of the work-up of any patient presenting with pericarditis, especially a woman. Occasionally lupus may be present even when the serologic tests have given negative results. Under such circumstances, or when the patient manifests an atypical or prolonged course, a diagnostic pericardiocentesis is in order, provided an effusion can be confirmed on scan. A search for LE cells should be included in the analysis of the aspirated fluid.

Female↗

Intestinal calcium transport: stimulation by low phosphorus diets.

Rats maintained on a low phosphorus diet supplemented with 25-hydroxyvitamin D(3) show high intestinal calcium transport activity as compared to rats similarly treated but fed a diet containing adequate phosphorus. This increased transport activity is correlated with an increased biosynthesis of 1,25-dihydroxyvitamin D(3), the probable metabolically active form of the vitamin in the intestine.

Animals↗