The epithelium and the lumen of the Malpighian tubules of the housefly contains mineralized dense bodies called concretions. The morphological characteristics, mode of origin, nature of the… (More)
A common tattoo occurring in the mouth is caused by the insertion of amalgam filling material into the soft tissues. Fifteen amalgam tattoos were examined. Amalgam or its derivatives were found… (More)
The elemental composition of keratohyalin granules from the interpapillary and papillary lingual epithelium and the oesophageal epithelium of the rat were studied by X-ray microanalysis in an EMMA-4… (More)
X-ray microanalysis of frozen-hydrated tissue sections permits direct quantitative analysis of diffusible elements in defined cellular compartments. Because the sections are hydrated, elemental… (More)
New specimen handling and analytic techniques for the application of x-ray microanalysis to studies of cell and organ biology have been recently described (Saubermann et al., 1981, J. Cell Biol.… (More)
A number of embedding media were checked for chlorine content by means of X-ray analytical electron microscopy (EMMA-4 electron microscope and KEVEX energy dispersive analyser). It was shown that the… (More)
The contractile responses to barium and the ultrastructure and ionic composition of mitochondria were studied in vascular smooth muscle. In normal rabbit portal anterior mesenteric vein (PAMV) and… (More)
Sites with high calcium affinity in Paramecium aurelia were identified by high calcium (5 mM) fixation and electron microscope methods. Electron-opaque deposits were observed on the cytoplasmic side… (More)
Giant axons from the squid, Loligo pealei, were fixed in glutaraldehyde and postfixed in osmium tetroxide. Calcium chloride (5 mM/liter) was added to all aqueous solutions used for tissue processing.… (More)
The epithelial cells of the midgut in 1-40 day old adult female houseflies were examined by electron microscopic X-ray microalnalytic and histochemical techniques in order to study the mode of… (More)