argyria/nicotine

In a 49-year-old man generalised argyria was diagnosed, a systemic dissemination and tissue deposition of silver in the body. The clinical picture was brought about by use of a silver acetate-containing lozenge as a deterrent to smoking. Argyria is characterised by a slate blue-gray discolouration

From different Nicotiana species (N. sylvestris Spegaz. et Comes, N. glutinosa L., and N. tabacum L. cultivars) which differ in their sensitivity towards tobacco mosaic virus (TMV), chromatin-associated protein profiles were compared by two-dimensional polyacrylamide gel electrophoresis. After

Genomic instability as reflected by microsatellite alterations in specific target regions is an important characteristic of oral squamous cell carcinoma (OSCC). Microsatellite instability (MSI) and loss of heterozygosity (LOH) on chromosome 9 has been reported as an early event in oral cancers,

The polypeptide pattern of the plasma membrane from tobacco was studied by two-dimensional gel electrophoresis. When using classical carrier ampholyte isoelectric focusing/sodium dodecyl sulfate-polyacrylamide gel electrophoresis (IEF/SDS-PAGE) approximately 400 polypeptide spots were detected after

A sucrose density gradient-purified, membrane-bound tobacco mosaic virus (tomato strain L) (TMV-L) RNA polymerase containing endogenous RNA template was efficiently solubilized with sodium taurodeoxycholate. Solubilization resulted in an increase in the synthesis of positive-strand, 6.4-kb

BACKGROUND Nucleolar organizer regions (NOR) are associated with proliferative activity and represent a diagnostic and prognostic marker. METHODS Smears were taken from smokers, tobacco chewers, oral squamous cell carcinoma patients, and normal subjects and evaluated by 2 silver-staining nucleolar

For many years a 52-year-old patient suffering from duodenal ulcer had taken a silver-containing preparation, the total quantity of silver ingested in this manner amounting to about 35 g. 18 years after the first manifestation of duodenal ulcer a dermatologist diagnosed argyria and confirmed this by

A template-bound RNA polymerase was isolated from Nicotiana clevelandii plants infected with red clover necrotic mosaic dianthovirus (RCNMV) by differential centrifugation, solubilization with dodecyl beta-D-maltopyranoside, and chromatography on columns of Sephacryl S-400 and Q-Sepharose. Analysis

UDP-glucuronic acid decarboxylase catalyses the reaction responsible for the formation of UDP-xylose and commits assimilate for the biosynthesis of cell wall polysaccharides and glycosylation of proteins. Xylose-rich polymers such as xylans are a feature of dicot secondary walls. Thus a cell culture

Effects of auxin as plant hormones are widespread; in fact in almost all aspects of plant growth and development auxin plays a pivotal role. Although auxin is required for propagating cell division in plant cells, its effect upon cell division is least understood. If auxin is depleted from the

Nicotine's neurotoxic properties in rats were investigated by administering (-)-nicotine tartrate for 5 days either continuously in doses of 5.01, 5.72, 6.44, 7.13, 20.41 and 43.1 mg/kg/day via osmotic minipump or intermittently at 11.32 mg/kg/day via one daily subcutaneous injection. As assessed by

Two antisera (ATP88 and ATP95) raised against the V-ATPase holoenzyme of Kalanchoë daigremontiana were tested for their cross-reactivity with subunits of V-ATPases from other plant species. V-ATPases from Kalanchoë blossfeldiana, Mesembryanthemum crystallinum, Nicotiana tabacum, Lycopersicon

Intersegmental muscles of the tobacco hornworm, Manduca sexta, degenerate promptly after the ecdysis of the moth. Protein content of the growing, static, and degenerating muscle was evaluated by two-dimensional electrophoresis; RNA was isolated from the muscle and translated, and the translation

Objective: To perform an epidemiological survey comparing the cell proliferative activity of 107 cases of oral leukoplakia with their clinical and histopathological characteristics. Materials and methods: