Studies in human duodenal biopsy specimens have found a significant correlation between CaT1 mRNA and calbindin D mRNA expression [ 16].
Studies of the relationship between breast tissue histology and the radiological appearance of the breast (described in detail by Boyd and coworkers [ 9]), using surgical biopsies or mastectomy specimens, have found greater amounts of epithelium and/or stroma to be associated with mammographic density.
He has found specimens in the Meadowlands and the Great Swamp National Wildlife Refuge in New Jersey, and Putnam and Orange Counties in New York.
"He was an impressive physical specimen before, but he has found a new gear," Guggenheim said.
While it is likely that the integrity of mRNA isolated from paraformaldehyde fixed specimens is inferior to fresh-frozen specimens, we have found that short, overnight fixation protocols yield RNA of sufficient quality to perform consistent and reproducible RT-PCR and microarray analyses.
To develop the second relationship, most studies use relationships developed using physical specimens and have found continuous functions and power relationships best fit experimental data (E = αρβ), where E is the Young's Modulus, α and β are experimentally derived parameters, and ρ is the bone density (Helgason et al. 2008).
The oryzomyines of the Caribbean were revised in 1962 by Clayton Ray, who examined the specimens Gregory had found and redescribed them.
In 1973, the French mycologist Henri Romagnesi, unaware of Velenovský's publication, published a description of the species he called Armillariella bulbosa, based on specimens he had found near Compiègne and Saint-Sauveur-le-Vicomte in France.
In summary, using biochemistry, mouse genetics, and clinical tumor specimens we have found that SIRT1, a diet-responsive gene, is a regulator of β-catenin and has a tumor suppressive function.
A few small studies using resected specimen measurements have found FLAB to be more accurate than fixed threshold [8].
