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Full-Text Articles in Life Sciences
Elemental Content Of Anagen Hairs In A Normal Caucasian Population Studies With Proton Induced X-Ray Emission (Pixe), B. Forslind, H. K. Li, K. G. Malmqvist, D. Wiegleb
Elemental Content Of Anagen Hairs In A Normal Caucasian Population Studies With Proton Induced X-Ray Emission (Pixe), B. Forslind, H. K. Li, K. G. Malmqvist, D. Wiegleb
Scanning Electron Microscopy
The elemental content of anagen hair fibers in a Caucasian population of healthy females and males in the age range 10-69 years was performed to constitute a baseline for further studies of pathological conditions. Proton induced X-ray emission (PIXE) analyses were performed on single hair fibers in triplicates from 103 individuals in order to determine sulfur, zinc, calcium, and chlorine content. The hair fibers were all anagen hairs collected from a site little influenced by genetic and hormonal influences 1.5 cm above the right ear of the probands.
An area 5-8 mm from the follicle bottom was chosen for minimize …
Calcium And Cystic Fibrosis, Godfried M. Roomans
Calcium And Cystic Fibrosis, Godfried M. Roomans
Scanning Electron Microscopy
Cystic fibrosis (CF) is a generally lethal, congenital, genetic disease of unknown etiology. It is likely that a defective regulation of ion and water transport in exocrine glands and possibly also in other epithelial cells has a central role in the pathogenesis of this disease. Calcium has been implicated in the basic defect underlying CF because of findings of abnormally high calcium levels in some secreted fluids and some cells of CF patients.
Using X-ray microanalysis, we have demonstrated elevated calcium concentrations in cultured fibroblasts and in goblet cells of the bronchial epithelium of CF patients. A factor produced by …