Objective: Elucidation of the intracellular lipoatrophic diabetic state and the concomitant alterations in norepinephrine (NE) parameters characterizing female reproductive failure. Methods: Quantitation of intrinsic NE levels in utero-ovarian and pancreatic tissue samples of C57BL/KsJ (+/?) control and (db/db) diabetic littermate mice was by high performance liquid chromatography (HPLC) and compared with the microspectrofluorometric histofluorescent (HF) localization of cellular and parenchymal NE. Results: Diabetes-associated elevations in HPLC-detectable tissue NE concentrations occurred in all pancreatic and reproductive tract tissue samples as compared to control-matched samples, whereas concurrent HF analysis revealed suppressed perivascular and parenchymal NE depositions in diabetic mice. Conclusions: These data suggest that progressive hypertriglyceridemia/lipidemia may suppress the effectiveness of intrinsic elevations in tissue NE concentrations from effectively counterregulating the deleterious effects of the hyperglycemic, type-2 diabetic condition.

Keywords:
Diabetes, Ovary, Uterus, Norepinephrine, Cellular metabolic pathology, Tissue microspectrofluorescence, Triglycerides and free fatty acids
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© 2002 S. Karger AG, Basel
2002
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