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At least 199 records · Page 11Linked to original sources
PubMed1977

Diabetes mellitus, islet-cell antibodies, and HLA-B8 in a patient with systemic lupus erythematosus.

Evidence that autoimmune mechanisms may provide a possible explanation for the occurrence of some types of diabetes mellitus has included the clinical association of diabetes with other autoimmune conditions and the serologic demonstration of organ-specific antibodies. This article reports the case of a patient with systemic lupus erythematosus accompanied by diabetes and the presence of antibodies to pancreatic islet cells. This represents further evidence that autoimmune activity may play a role in the etiology of diabetes mellitus, which is especially interesting in light of recent HLA antigen studies that show a possible genetic link between the two diseases.

Acetohexamide↗
PubMed1978

Mass spectrometry of N-methylsulfonylureas. A re-examination.

Some confusion has arisen in the literature regarding the electron impact mass spectrum of N-methyltolbutamide. The situation is complicated by the thermal lability of this compound which causes the formation of the corresponding N-methylsulfonamide. We present here spectral data at relatively low probe temperatures (and without an intervening gas chromatographic system) which we believe define the mass spectrum of N-methyltolbutamide more accurately than before. Similar data are presented for the analogous N-methylacetohexamide and show a rearrangement process for both substances not reported previously for this class of compounds.

Acetohexamide↗
PubMed1977

Reutilization of precursor following axonal transport of [3H]proline-labeled protein.

In further studies on axonally transported protein in the goldfish visual system, the turnover of rapidly transported [3H]proline-labeled protein was examined. It was found that: (1) a fraction of the rapidly transported protein has a relatively short half-life; (2) [3H]proline released following proteolysis of transported protein is efficiently reutilized for tectal protein synthesis, as inferred from an increased labeling of nuclear protein in the contralateral tectum (COT) relative to that in the ipsilateral tectum (IOT); (3) a small amount of [3H]proline arrives in the COT by axonal flow of the free amino acid; and (4) [3H]leucine and [3H]asparagine are less efficiently reutilized than [3H]proline. These findings may relate to the phenomenon of transneuronal transfer of radioactivity which has been observed with [3H]proline as precursor. The extensive reutilization of [3H]proline may account for part or all of the labeling at secondary synaptic sites. The results suggest that asparagine may be highly suitable for radioautographic identification of primary neuronal fields.

Acetohexamide↗