SUN-361 Cultured Murine Osteoblasts Convert DHEA to Testosterone

DHEA and testosterone in the elderly.

To the Editor: In their report on the effects of dehydroepiandrosterone (DHEA) and testosterone when used as antiaging supplements, Nair et al. (Oct. 19 issue)1 conclude that low-dose testosterone replacement in elderly men has no “physiologically relevant beneficial effects on body composition, physical performance, [or] insulin sensitivity.” However, this conclusion is premature, since the te...

DHEA in elderly women and DHEA or testosterone in elderly men.

BACKGROUND Dehydroepiandrosterone (DHEA) and testosterone are widely promoted as antiaging supplements, but the long-term benefits, as compared with potential harm, are unknown. METHODS We performed a 2-year, placebo-controlled, randomized, double-blind study involving 87 elderly men with low levels of the sulfated form of DHEA and bioavailable testosterone and 57 elderly women with low level...

Anti-Obesity Effects of Androgens, Dehydroepiandrosterone (DHEA) and Testosterone

Effects of imatinib and nilotinib on the whole transcriptome of cultured murine osteoblasts

Numerous clinical observations have confirmed that breakpoint cluster region-abelson fusion oncoprotein tyrosine kinase inhibitors used in leukemia treatment alter bone physiology in a complex manner. The aim of the present study was to analyze the whole transcriptome of cultured murine osteoblasts and determine the changes following treatment with imatinib and nilotinib using Sequencing by Oli...

Bone morphogenetic protein-transduced human fibroblasts convert to osteoblasts and form bone in vivo.

Experimental cell or ex vivo gene therapy for localized bone formation typically uses osteoprogenitor cells propagated from periosteum or bone marrow. Both require bone or marrow biopsies to obtain cells. We have demonstrated that implantation of gingival or dermal fibroblasts transduced with BMP ex vivo, using a recombinant adenovirus (AdCMVBMP) attached to porous biodegradable scaffolds, form...