Katelyn Ackerman

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Sympathetic noradrenergic nerve fibers, stained with antiserum for tyrosine hydroxylase (TH), richly innervate the splenic white pulp. These fibers distribute with the vascular and trabecular systems, and associate mainly with the central artery and its branches, the periarteriolar lymphatic sheath (PALS), the marginal sinus, and the parafollicular zone,(More)
The ontogeny of noradrenergic innervation and its compartmental development were studied in the rat spleen using glyoxylic acid histofluorescence and high-performance liquid chromatography (HPLC). Noradrenergic nerves were present at birth in bundles adjacent to the splenic artery and vein. On days 1-3, fluorescent profiles largely were associated with the(More)
By combining neurochemical measurement of norepinephrine (NE) with double-label immunocytochemistry for tyrosine hydroxylase-positive (TH+) noradrenergic nerves and specific lymphoid markers, we have examined the developmental compartmentation of noradrenergic nerves in the rat spleen. TH+ nerve fibers were present in the white pulp of the spleen at birth,(More)
A longitudinal study of sympathetic noradrenergic (NA) innervation of the spleen was carried out in 3-, 8-, 12-, 17-, 21-, and 27-month-old Fischer 344 (F344) rats using (i) fluorescence histochemistry for localization of norepinephrine (NE); (ii) immunocytochemistry (ICC) for localization of tyrosine hydroxylase (TH)-positive nerve fibers alone, and in(More)
The development of natural killer (NK) cell activity was assessed in Fischer 344 (F344) rats sympathectomized as neonates with the neurotoxin, 6-hydroxydopamine (6-OHDA). No NK cell activity was detected in sympathectomized or vehicle-injected control animals at 7 days of age. At 10 and 14 days of age, NK cell activity was reduced in spleens from(More)
The ontogeny of spleen cell proliferation to T and B cell mitogens and immunoglobulin secretion, measured in vitro, was examined in neonatally sympathectomized Fischer 344 (F344) rats, administered the neurotoxic drug 6-hydroxydopamine (6-OHDA) from 1 to 3 days of age. Compared to cells from age-matched controls, spleen cells from neonatally(More)
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