Deborah S. Gross

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  • D S Gross
  • General and comparative endocrinology
  • 1984
Despite its occurrence in most vertebrate species, the function of the hypophysial pars tuberalis (PT) remains obscure. Recent immunocytochemical studies have demonstrated the presence of hormone-containing cells in the few species studied. In the present study the secretory cell composition of the PT was characterized in a variety of mammals using(More)
Since differential chemical staining has been unsatisfactory for demonstration of specific secretory cell types in the hypophyseal pars distalis of the mouse, the objective of this study was to determine whether the peroxidase-antiperoxidase immunocytochemical procedure might be more effective. Accordingly, representative sections from the hypophyses of 17(More)
The response of LH cells in the pars tuberalis of the rat hypophysis to castration alone or castration and subsequent administration of testosterone propionate or estradiol benzoate was studied. To accomplish this, LH cells were labeled by the peroxidase-antiperoxidase immunocytochemical method, with use of an antiserum generated against hCG. LH cells were(More)
The pars tuberalis and pars distalis are constant subdivisions of the vertebrate adenohypophysis. Unlike the pars distalis, however, direct evidence of an endocrine function for the pars tuberalis is lacking. The present immunocytochemical study shows the ovine pars tuberalis to be unique in that 1) its only immunoreactive hormone-containing cell type is(More)
Atmospheric concentrations of elemental mercury (Hg(0)), reactive gaseous Hg (RGM), and particulate Hg (pHg) concentrations were measured in Yellowstone National Park (YNP), U.S.A. using high resolution, real time atmospheric mercury analyzers (Tekran 2537A, 1130, and 1135). A survey of Hg(0) concentrations at various locations within YNP showed that(More)
Real-time detection of oligomers in secondary organic aerosols has been carried out with an aerosol time-of-flight mass spectrometer sampling particles generated in a smog chamber. The photooxidation products of 1,3,5-trimethylbenzene and NOx were studied over a range of initial 1,3,5-trimethylbenzene concentrations (137-1180 ppb), while keeping the(More)
Considerable evidence indicates that the pituitary-gonadal axis is active in the fetus, but little is known about the relative times in development when the brain begins to secrete gonadotropin-releasing hormone (GnRH) and the hypophysis begins to secrete gonadotropin. The objective was to correlate the time of appearance of GnRH in the median eminence and(More)
The distribution of gonadotropin-releasing hormone (GnRH) was studied immunohistochemically in the brain of the adult mouse with the peroxidase-antiperoxidase (PAP) method. Primary antisera were prepared against unconjugated synthetic GnRH and GnRH conjugated to limpet hemocyanin or bovine serum albumin. GnRH was localized in the organum vasculosum of the(More)
A limiting factor in the use of immunocytochemistry in experimental endocrine studies has been the lack of a suitable procedure for quantification of immunoreactive hormones. The objective of the present study was the development of an automated, computerized image analysis system adapted to the quantitative analysis of light microscopic immunocytochemical(More)
Family interviewers hired to recruit families of color from low-income communities into a health promotion/prevention research project participated in a focus group to describe their experiences. The family interviewers described (1) recruitment techniques, (2) personal attributes they thought made a difference in their recruitment and retention efforts,(More)